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1
Bertolini, Marina. "Regolazione e concorrenza nel settore delle comunicazioni elettroniche." Doctoral thesis, Universita degli studi di Salerno, 2013. http://hdl.handle.net/10556/786.
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2010 - 2011Con l'entrata in vigore del nuovo quadro europeo delle comunicazioni elettroniche è venuto a delinearsi un nuovo assetto normativo che interviene a modificare e ad integrare l'ordinamento delle comunicazioni elettroniche disegnato con il pacchetto Telecom 2002. Tali innovazioni sono state determinate dall'esigenza -avvertita dal legislatore comunitario- di modulare il quadro regolativo per adeguarlo alle evoluzioni tecnologiche ed economiche che nell'ultimo decennio hanno rivoluzionato il mercato delle comunicazioni, ma anche dalla necessità di superare elementi di criticità riscontrati in fase di applicazione del sistema normativo vigente. L'iter che ha portato alla definizione del nuovo assetto regolatorio (che ha avuto inizio con la Comunicazione sul riesame del quadro normativo comunitario per le reti ed i servizi di comunicazione elettronica del 2006) è stato particolarmente complesso ed ha avuto momenti di pausa ma anche momenti di forte accelerazione. Il primo passaggio decisivo vi è stato nel 2007, allorché la Commissione ha adottato, il 13 novembre, il pacchetto di proposte di riforma articolato in due proposte di direttiva: la COM (2007) 697-2007/0247 (COD) (definita direttiva legiferare meglio) e la COM (2007) 698-2007/0248 (COD) (denominata direttiva sui diritti dei cittadini). Il pacchetto di misure si completava con la proposta di regolamento COM (2007) 699-2007/0249 (COD) tesa ad istituire un unico Regolatore europeo delle comunicazioni. Tali atti furono, poi, trasmessi, rispettivamente il 13, il 15 e il 16 novembre 2007, al Parlamento europeo e ed al Consiglio per l'esame successivo. Preliminarmente va sottolineato che, fatta eccezione per la summenzionata misura regolamentare, tesa di istituire la nuova Autorità europea, le nuove disposizioni ipotizzate dal legislatore comunitario non intendevano stravolgere l'assetto ordinamentale disegnato dal pacchetto Telecom 2002. Piuttosto, tali misure erano state concepite con l'obiettivo di aggiornare la normativa vigente attraverso formule ad intarsio ed una miriade di innesti nella legislazione in vigore. In particolare, attraverso la proposta di revisione della direttiva quadro, della direttiva autorizzazione e della direttiva accesso, il legislatore comunitario intende aumentare l'efficacia, ridurre le risorse amministrative necessarie per l'attuazione della regolamentazione economica, oltre che agevolare e rendere più efficiente l'accesso alle frequenze radio. Invece, mediante la riforma della direttiva sul servizio universale e della direttiva sulla tutela della vita privata nel settore delle comunicazioni elettroniche, la Commissione intendeva accrescere la tutela dei diritti dei consumatori e degli utenti ed assicurare l'affidabilità, la sicurezza e l'attendibilità, garantendo, un livello elevato di tutela della vita privata e dei dati personali degli individui. Il legislatore europeo intendeva anche migliorare il coordinamento delle attività delle ANR all'interno dei diversi Paesi, e rafforzare l'azione già svolta a livello comunitario dall’ERG. In quest'ottica, fu proposta l'istituzione di un organo indipendente chiamato a contribuire al completamento del mercato interno ed a supportare la Commissione ed i legislatori nazionali relativamente all'attuazione della disciplina europea delle comunicazioni elettroniche. Obiettivo del presente lavoro è quello di contribuire alla ricostruzione delle linee di sviluppo che hanno portato alla definizione del nuovo quadro comunitario delle comunicazioni elettroniche, nel tentativo di delineare in quest'ambito il nuovo modello europeo di regolazione incentrato sulla figura del BEREC (Body of European Regulators for Electronic Communications). Per poter analizzare il nuovo assetto è necessario ripercorrere le direttrici che hanno portato alla definizione del nuovo sistema che regola il settore delle comunicazioni elettroniche, (inquadrato nell'ambito dei servizi di interesse economico generale), nel quale è venuto a formarsi una sorta di interconnessione amministrativa tra diversi livelli ordinamentali che connota la cornice regolatoria comunitaria. Questa evoluzione ha determinato il formarsi di un quadro normativo composito ed integrato, che riconduce ad unità una pluralità di livelli istituzionali che compongono lo spazio regolatorio europeo delle comunicazioni elettroniche. Pertanto, pur partendo dal presupposto che il campo di osservazione è quello proprio del diritto pubblico, non si può ignorare che gli scenari evolutivi che caratterizzano l'ordinamento delle comunicazioni elettroniche, sono diretta conseguenza delle dinamiche legislative comunitarie che incidono sul rapporto dialettico tra gli assetti di mercato e l'intervento pubblico nei processi economici, facendo emergere un'esigenza di regolazione integrata di settore. Tale comparto va, progressivamente, ridefinendosi alla luce delle linee di sviluppo di natura tecnologico-industriale ed economico-commerciale, che caratterizzano il processo di convergenza tra voci, immagini e dati. In quest'ambito va considerato che un'innovazione tecnologica così forte pone il problema della regolazione proconcorrezionale. Ed infatti l'assetto ordinamentale delle comunicazioni si connota per la sua perenne dinamicità, caratterizzato dal rafforzamento della valenza federale della costruzione comunitaria e dall'emergere, in questo ambito, di nuove forme di regolazione incentrato su istituzioni reticolari composite (in parte nazionali ed in parte comunitaria, preposte all'esercizio di funzioni regolatorie nei mercati integrati delle comunicazioni elettroniche. In questo contesto, partendo dal presupposto che l'Organismo europeo dei regolatori, rappresenta la principale novità del nuovo disegno regolatorio (che viene a completare l'assetto amministrativo integrato della regolazione europea nelle comunicazioni elettroniche) ci si è posti l’obiettivo di contribuire alla ricostruzione unitaria del sistema normativo, collocando il BEREC all'interno del modello europeo della regolazione. Ciò nel tentativo di disegnare un quadro il più possibile organico degli assetti legislativi vigenti, alla luce delle trasformazioni hanno innovato gli assetti giuridico-istituzionali del sistema di intervento pubblico in economia, nel passaggio “dal mercato guidato al mercato regolato”. [a cura dell'autore]
X n.s.
2
Muratori, Alessia. "Il percorso di evoluzione della Neutralità della Rete." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13292/.
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L'obiettivo di questa tesi è cercare di esaminare l'evoluzione della Neutralità della Rete passando attraverso l'aspetto informatico e giuridico.
Per l'aspetto informatico viene preso in considerazione il Best Effort e il principio dell'End-To-End.
Dall'altro lato per l'aspetto giuridico vi è una panoramica sulle normative regolate da autorità come l'AGCOM, il BEREC e la FCC.
Inoltre vengono prese in considerazione vicende italiane, europee e statunitensi che mostrano violazioni contro i principi neutrali.
La parte finale è incentrata sul fatto di capire se vi possa essere una soluzione al problema della Neutralità della Rete.
3
Strydom, Cornus. "Modulayer-Berea Park learner Resource centre." Pretoria : [s.n.], 2003. http://upetd.up.ac.za/thesis/available/etd-11202003-163127.
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Tice, Ashley N., Paige S. Waddell, Courtney D. Hall, Faith W. Akin, Owen D. Murnane, and Kristal M. Riska. "Reliability and Validity of Bertec Computerized Dynamic Posturography." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/etsu-works/1866.
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Sensory Organization Test (SOT) quantifies contributions of three sensory systems to postural stability and identifies fall risk. This study evaluated reliability and validity of SOT on a newly available computerized dynamic posturography system (Bertec) compared to the gold standard (NeuroCom). Forty-three adults with normal vestibular function completed testing on both systems over two sessions. Bertec SOT is valid and reliable in this population, but differences in composite scores between Bertec and NeuroCom suggest the systems are not interchangeable.
5
Herrin, Elizabeth Anne. "Experimental study of shear and compaction band formation in berea sandstone." Thesis, [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3176.
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6
Floyd, Julie. "SUBSURFACE GEOLOGICAL ANALYSES OF THE BEREA PETROLEUM SYSTEM IN EASTERN KENTUCKY." UKnowledge, 2015. http://uknowledge.uky.edu/ees_etds/33.
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The Berea Sandstone is a Late Devonian, tight oil and gas reservoir that intertongues with the Bedford Shale in eastern Kentucky. In order to evaluate the Bedford-Berea interval in the subsurface, 555 well logs from the Kentucky Geological Survey’s oil and gas database were used to construct structure maps, isopach maps, and cross sections of the interval and its possible hydrocarbon source rocks. Gamma-ray logs were compared to known cores in order to separate Bedford from Berea lithologies. Maps and cross sections were compared to known basement structures to evaluate possible structural influences on the interval.
The Bedford-Berea interval is thickest along a north-south elongate trend which extends from Lewis to Pike Counties and cuts across basement structures. Along this trend, the interval is thickest and the percentage of Berea lithologies is greatest on known basement highs. The interval is thinnest and dominated by Bedford shales above structural lows and west of the main trend. Several wells are also reported in which the Bedford-Berea thickens on the down-thrown side of major faults. Also, in northeastern Kentucky, where the Berea is thickest, possible submarine channel facies are identified which cut into the underlying Cleveland Shale near the Waverly Arch.
7
Garnes, William Thomas. "Subsurface Facies Analysis of the Devonian Berea Sandstone in Southeastern Ohio." Bowling Green State University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1415920946.
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Bobich, Jennifer Kay. "Experimental analysis of the extension to shear fracture transition in Berea Sandstone." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2584.
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To characterize low-pressure, brittle deformation in porous, granular rock, notchcut
cylinders (30 mm neck diameter) of Berea Sandstone were extended in a triaxial
apparatus from 10 to 160 MPa confining pressure at strain rates of 10-4 s-1 and 10-5 s-1.
Acoustic emission counts were monitored when extending samples at a slow strain rate.
Stress at fracture is characterized by the least compressive principal stress, ??3, and
maximum compressive principal stress, ??1 (??1 = Pc). A change in strength dependence
on pressure at Pc = 50 MPa corresponds to a change from pure macroscopic extension
fracture to mixed-mode opening and shear fracture, and likely reflects the increase in
mean stress that suppresses the propagation of extension fractures and the interaction
between closely-spaced stepped cracks. Within the extension fracture regime (Pc < 50
MPa), ??3 at failure becomes slightly more tensile with an increase in Pc. At Pc > 50
MPa, ??3 at failure becomes more compressive with an increase in Pc and follows
Coulomb behavior; however, the angle between the fracture surface and ??1 increases
continuously with Pc. Fracture surfaces characteristic of the extension to shear fracture
transition appear as linked, stepped extension fractures; the length of extensional
segments decreases with increasing pressure. The onset of acoustic emissions and inelastic strain at fracture occurs at earlier points in the strain history with pressure,
consistent with the Griffith prediction of the beginning of fracture growth.
9
Pinto, Edson Fonseca. "Estado nutricional, desempenho motor e marcadores dermatogl?ficos em escolares p?beres." Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13272.
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Previous issue date: 2009-11-06A fase da puberdade ? o per?odo em que ocorrem as maiores transforma??es caracter?sticas da adolesc?ncia. Por essa raz?o, este estudo objetivou identificar o estado nutricional, desempenho motor e marcadores dermatogl?ficos em 2363 escolares p?beres selecionados de forma estratificada, de ambos os sexos, com idades variando de 6 a 15 anos, matriculados no Ensino Fundamental (2? a 9? S?ries) do ensino p?blico no estado do Rio Grande do Norte. Foram avaliados o estado nutricional (?ndice de Massa Corporal); as qualidades f?sicas b?sicas ( testes de coordena??o, equil?brio, agilidade, flexibilidade, for?a e velocidade); o potencial gen?tico (m?todo da dermatoglifia) e o est?gio maturacional (auto avalia??o de Tanner); Com rela??o ao estado nutricional observou-se que escolares acima do peso apresentam valores mais baixos em rela??o ao seu desempenho motor sendo esses valores, mais significativos nos meninos. No que se refere ? matura??o sexual, os resultados apontaram que os meninos atingem os est?gios maturacionais primeiro que as meninas, n?o tendo encontrado correla??o entre o potencial gen?tico e os demais indicadores o que nos permite concluir que os escolares do estado do Rio Grande do Norte, principalmente os do sexo masculino sofrem influ?ncia significativa de seu estado nutricional e seu est?gio maturacional no que diz respeito ao seu desempenho motor. Essa disserta??o apresenta rela??o de interdisciplinaridade, tendo o seu conte?do uma aplica??o nos campos da Educa??o F?sica, Nutri??o, Medicina e Enfermagem.
10
Muslim, Mohanad Z. "A Sequence Stratigraphic Analysis of the Berea Sandstone in Athens County, Ohio." Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1399291939.
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Kaul, Oliver Beren [Verfasser], and Michael [Akademischer Betreuer] Rohs. "HapticHead - Augmenting Reality via Tactile Cues / Oliver Beren Kaul ; Betreuer: Michael Rohs." Hannover : Gottfried Wilhelm Leibniz Universität, 2021. http://d-nb.info/1235138461/34.
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Scholtz, Jeandri. "Hybrid : a new interface between the City of Pretoria and Berea park." Diss., University of Pretoria, 2016. http://hdl.handle.net/2263/60203.
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The modern day mechanical integration
and organisation of cities have disturbed
the natural systems and sequences of
the environment, as well as the social
fabric and collective notions of society
within cities (Mumford, 1938:17). Man's
progressive "liberation" from the natural
environment has desensitised him to
nature (Crowe, 1995:233) creating an
artifi cial realm where man is removed
from nature.
Pretoria's establishment was greatly
infl uenced by its landscape - aptly
called "the valley between the ridges
and the rivers" (Dippenaar, 2013:6).
Urban modernisation and infrastructure
development have however progressively
disregarded the river and the landscape
within the city, consequently detaching
the city from these natural elements,
which resulted in the loss of their
signifi cance.
As one of the last remaining
underdeveloped sites in the inner city
of Pretoria, Berea Park represents a
continuation of the landscape and the
Apies River channel into the city. Situated
at the southern gateway of the city,
Berea Park was Pretoria's fi rst offi cial
recreational, social and cultural venue,
hosting numerous sport, outdoor and
other events. Unfortunately Berea Park
is currently in a derelict and idle state.
Infrastructural developments have
gradually disconnected the site from the
surrounding city fabric and community.
The isolated and forgotten park, has
like the river, tragically lost its essential
signifi cance. The divide between the city fabric,
the Apies River channel and the
Berea Park landscape presents the
opportunity to explore architecture's
role in re-integrating and connecting
experiences of "nature" into the city to
enhance the quality of urban life.
This dissertation explores architecture
and the hybrid typology of "building as
a landscape", as a means to create a
new topography and interface between
the Berea Park landscape, river
channel and the city. The concept of
a hybrid architecture that merges the
typologies of urban park, landscape,
infrastructure, public amenity and
building is explored with the intention
to develop a new typology that can
respond to the contextual challenges.
The building becomes an extension
of the park, and the park becomes
an extension of the building. The new
interface, proposed programme and
activities are aimed at linking the
city, its inhabitants, communities, the
landscape and the river.Die hedendaagse meganiese integrasie en organisasie van stede het die natuurlike sisteme en ritmes van die omgewing, asook die sosiale strukture en kollektiewe opvattings van gemeenskappe in stede versteur (Mumford, 1038:17). Die mens se progressiewe "bevryding" van die natuurlike omgewing het gelei tot 'n skeiding tussen die mens en die natuur (Crowe, 2013:6), wat der volglik ? kunsmatige domein waarbinne die mensdom uit die natuurverwyder is, geskep het. Die totstandkoming van Pretoria was grootliks be?nvloed deur sy natuurlike landskap - met die gepaste benaming van " 'n vallei gele? tussen rante en riviere" (Dippenaar, 2013:6). Met stedelike modernisering en infrastruktuur ontwikkeling is daar stelselmatig minder ag geslaan op die rivier en die omliggende stadslandskap, wat daartoe gelei het dat die stad van die natuurlike omgewing afgesonder geraak het en uiteindelik het dit die verlies van die essensi?le betekenis en waarde van die natuurelemente veroorsaak. Berea Park, een van die laaste oorblywende onderontwikkelde terreine in die sentrale stadsgebied van Pretoria, is gele? aan die suidelike ingang van die stad en verteenwoordig 'n verlenging van die landskap en die Apiesrivierkanaal na die stad. Di? terrein was Pretoria se eerste amptelike ontspannings-, sosiale en kulturele byeenkomsplek, wat sport-, buitelugen ander byeenkomste aangebied het. Ongelukking is Bera Park tans 'n verlate, verwaarloosde en onbenutte area. Infrastruktuur ontwikkeling van di? gebied het geleidelik die terrein afgesonder van die omliggende stad en gemeenskap. Die ge?soleerde en vergete park het, soos die rivier, tragies geen betekenis of nut meer nie. Die skeiding tussen die stedelike bouomgewing, die Apiesrivierkanaal en die landskap van Berea Park bied die geleentheid om argitektuur se rol met betrekking tot die herintegrering en verbinding van die "natuur" met die stad te ondersoek derhalwe die gehalte van 'n stedelike lewenswyse te verhoog. Die skripsie ondersoek argitektuur en die hibriede tipologie van 'n gebou as 'n landskap, wat deur die fasilitering van 'n nuwe topografi e 'n interaktiewe verbinding tussen die landskap van Berea Park, die rivierkanaal en die stad tot stand kan bring. Hibriede-argitektuur is 'n konsep wat die samesmelting van die tipologie? van stedelike park, landskap, infrastruktuur, openbare fasiliteit en gebou ondersoek met die doel om 'n nuwe tipologie te ontwikkel wat kontekstuele uitdagings kan aanspreek. Die gebou word 'n uitbreiding van die park en die park word 'n uitbreiding van die gebou. Die doelwit van die gebou as nuwe interaktiewe verbinding en die voorgestelde program en aktiwiteite, is om die stad se inwoners, gemeenskappe, die landskap en die rivier te herverbind.
Mini Dissertation (MArch (Prof))--University of Pretoria, 2016.
Architecture
MArch (Prof)
Unrestricted
13
Rossini, Michael. "Progettazione e realizzazione di un circuito per l'amplificazione di segnali analogici provenienti da una pedana dinamometrica." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13890/.
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Le pedane di forza sono strumenti utilizzati frequentemente in ambito biomedico nei laboratori di analisi del movimento in quanto permettono di misurare le componenti di forze e momenti di un corpo posto al di sopra di esse attraverso la deformazione di sensori resistivi o piezoelettrici. L’obiettivo del presente elaborato è stato quello di progettare e realizzare un dispositivo portatile per l’amplificazione dei segnali analogici provenienti da una pedana dinamometrica Bertec K81201 (4060-08) presente nel Laboratorio di Ingegneria Biomedica (LIB) della Scuola di Ingegneria e Architettura di Cesena. La pedana attualmente può essere gestita solo attraverso un amplificatore per segnali analogici dedicato (Bertec AM6701), affiancato da un sistema fisso per la conversione analogico-digitale dei segnali e da un applicativo software, il BTS Smart Capture. Per permettere la completa portabilità della pedana dinamometrica è stato realizzato un amplificatore hardware con specifiche tali da garantire una corretta manipolazione dei segnali analogici in uscita dalla pedana. Il circuito prevede quattro stadi principali: l’amplificazione variabile dei segnali acquisiti, il filtraggio dei segnali, un sistema di illuminazione led e un sistema di azzeramento hardware dell’offset. Nella fase di realizzazione è stato inizialmente creato un singolo canale di acquisizione su bread board per verificare l’effettivo funzionamento del circuito, l’efficienza dei componenti utilizzati, e l’assorbimento di potenza. Per la realizzazione completa del dispositivo è stata utilizzata invece una scheda millefori. Al fine di valutare le prestazioni dell’amplificatore sono state eseguite prove sperimentali a vuoto confrontando l’amplificatore oggetto di questo elaborato e quello BERTEC AM6701 attualmente utilizzato in laboratorio; i risultati hanno evidenziato che l’amplificatore progettato e realizzato risulta meno rumoroso rispetto a quello BERTEC AM6701 per alti guadagni di amplificazione.
14
Stevens, Dennis Frederick. "Stress Redistribution in Berea Sandstone Samples Using Acoustic Emission Tomography in the Laboratory." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/32916.
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Velocity tomography is a noninvasive technique that can image the interior of a rock structure. To apply tomography to rock specimens, a propagation wave, which acts as a probe, is used. The propagation wave propagates from a source until it reaches a sensor on the surface of the rock specimen. Tomograms can then be generated from the velocity distribution within the rock structure. Areas of higher velocity are typically representative of higher stress concentrations, whereas areas of low velocity can be areas of fracturing. The variation of velocity tomography described in this thesis uses acoustic emissions as sources for the propagation wave. Acoustic emission sources provide advantages over mechanical sources, since the acoustic emission source is generated by the rock as a result of deformation and fracturing.Velocity tomography of rock structures in the field has numerous applications and advantages. Velocity tomography can be used to monitor rock structures surrounding tunnels and underground openings such as mines. To monitor the rock structure, velocity tomography is used to determine areas of higher stress concentration that may be precursors to rock failure. However, velocity tomography must first be used in a laboratory environment to determine failure in rock samples before being applied to the field.
The research presented includes the unconfined compression strength testing of 19 Berea sandstone samples. These samples were loaded to failure and during the experiment the acoustic emission events within the samples were monitored using a commercial acquisition system manufactured by Engineering Seismology Group (ESG) Canada. Source location software, also produced by ESG, was used for the location of the acoustic emission events. Ray inversions were performed on the data from the experiments to generate tomograms. The tomograms generated display the p-wave velocity distribution imaged within the Berea sandstone samples with the ultimate goal of being able to predict rock failure.
Based on the experiments discussed in this thesis it can be inferred that velocity tomography is a useful tool for imaging the inside of the Berea sandstone samples. Precursors of rock failure could not be determined in this early stage of research. However, the tomograms do image the p-wave velocity distribution and do show a gradual progression of the p-wave velocity from the initial velocity model to higher velocities. Results of these 19 experiments do provide reasonable confidence in the method and warrant pursuit of further research to refine and improve this method of monitoring velocity tomography.
Master of Science
15
Griffith, Daniel Hayes. "The dragon with the blue beret : China's contributions to United Nations peacekeeping operations." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/30363.
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Recently, academics and policy analysts alike have taken note of the People’s Republic of China’s increasing participation in United Nations peacekeeping operations (UNPKO). Since 2003, the overall number of Chinese personnel in UNPKO has climbed dramatically: from 120 in early 2003 to over 2,000 at present. However, while it is relatively easy to determine how many Chinese personnel serve in UNPKO, it is much more difficult to accurately determine China’s motives for participation in the UN peacekeeping regime and its mission selection criteria. At present, there are three main schools of thought on this subject. Chinese officials and academics tend to argue that the PRC contributes to UNPKO because it is genuinely concerned about promoting international peace and security and alleviating human suffering. Other authors, primarily from the United States, argue that the PRC’s motives are purely instrumental in nature. China, they contend, sends personnel to missions when doing so can increase the PRC’s access to natural resources and markets or augment its overall diplomatic and military power. Finally, some authors vaguely contend that China’s concerns over its international legitimacy play a role in its peacekeeping strategy.
This thesis advances a new version of the international legitimacy explanation of Chinese peacekeeping participation. Specifically, it uses case studies from China’s past and current participation in UNPKO to demonstrate how reputational concerns have and continue to be the primary determinants of China’s peacekeeping policy. It argues that China participates in UNPKO to improve its international image in two important ways. First, China wants to show other great powers that it supports the status quo international system, thereby undermining claims that it is a dangerous “revisionist power.” Second, the PRC wants to ameliorate concerns among the international community that it is behaving in an exploitative way toward the developing world.
16
Sen, Beren [Verfasser], and C. [Akademischer Betreuer] Wöll. "Polymerization Control in Surface-Mounted Metal-Organic Frameworks / Beren Sen ; Betreuer: C. Wöll." Karlsruhe : KIT-Bibliothek, 2021. http://d-nb.info/1226222080/34.
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Piette, Jeanne. "Étude génétique de l'invasion de la berce du Caucase (Heracleum mantegazzianum) au Québec." Master's thesis, Université Laval, 2017. http://hdl.handle.net/20.500.11794/28168.
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La berce du Caucase (Heracleum mantegazzianum) est une plante envahissante à l'origine disséminée à travers le monde pour son intérêt ornemental. Elle nuit aux milieux dans lesquels elle s'établit, par exemple en y réduisant la diversité spécifique et en causant l'érosion des berges. Sa sève toxique pose également un important problème de santé publique. Si la dynamique de ses populations a été étudiée en Europe, on ne connaît rien sur la génétique des populations québécoises. Cette étude visait à élucider les patrons spatiaux dans l'invasion de la berce au Québec et dans les régions avoisinantes. Elle cherchait entre autres à discerner le rôle de la dissémination anthropique versus naturelle dans la répartition actuelle de la plante. Pour ce faire, des analyses génétiques (1065 marqueurs de type « polymorphisme nucléotidique simple ») ont été effectuées sur un total de 940 individus provenant de 63 sites. Les résultats ont démontré la présence de trois lignées génétiques fortement différenciées parmi les populations québécoises. De multiples évènements de dissémination anthropique volontaire et involontaire ont été identifiés. Ces résultats pourront servir à améliorer les mesures de contrôle de la berce actuellement en place en plus de contribuer à la compréhension théorique de la dynamique des invasions biologiques.Giant hogweed (Heracleum mantegazzianum) is an invasive plant historically propagated around the world for its horticultural interest. It negatively impacts environments it colonizes, notably by reducing specific diversity and by increasing erosion in river banks. Furthermore, its toxic sap causes an important public health hazard. The species' population dynamics have been studied in Europe, but nothing is known about the genetics of Quebec populations. This study aimed to elucidate spatial patterns in the giant hogweed invasion in Quebec and in surrounding regions. Amongst other things, it focused on discerning the roles of anthropic versus natural dissemination in the current distribution of the plant. Genetic analyses (1065 single nucleotide polymorphism markers) were performed on a total of 940 individuals from 63 sites. The results demonstrated the presence of three strongly genetically differenciated lineages in Quebec populations. Multiple events of voluntary and involuntary anthropogenic dissemination were identified. The results of this study could be used to improve control policies for this species as well as to improve our understanding of the dynamics of biological invasions.
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Clayton, Russell Adrian. "Investigation of stabilized Berea Red soil with emphasis on tensile and cyclic triaxial tests." Master's thesis, University of Cape Town, 1989. http://hdl.handle.net/11427/8319.
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Includes bibliographical references.This dissertation investigates the soil mechanical properties of a sample of Berea Red soil and the most suitable methods of treatment to improve it. Special attention has been paid to lime stabilization and different curing techniques. Gradings, special indicators and California Bearing Ratios were determined on both natural and lime stabilized Berea Red soil. Consolidometer tests were performed on natural and lime or cement stabilized soil at various densities to establish the compressibility and collapse potential. A computer controlled Indirect Tensile Testing with data logging facilities was developed in apparatus order that some of the soil mechanical properties of Berea Red soil may be determined. Natural and stabilized Berea Red soil was tested in a monotonic and cyclic triaxial apparatus to determine the short and long stress strain characteristics.
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Dahle, Gunnar Sie. "Investigation of how Hydrophilic Silica Nanoparticles Affect Oil Recovery in Berea Sandstone : An Experimental Study." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-25845.
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Nanofluids, or nanoparticles dispersed in brine, has been launched as a promising enchaned oil recovery technique (EOR). Several coreflooding experiments were performed to investigate the effect of hydrophilic silica nanoparticles on enhanced oil recovery. In addition, contact angle and interfacial tension were measured in order to help explain the underlying mechanisms of the increased recovery seen from using the particles. Fumed silica particles proved to be better suited for oil recovery purposes compared to colloidal silica particles. In addition, the oil recovery increased with increasing particles size of both the fumed and the colloidal particles. Lastly, silica nanoparticles proved to be more effective at mobilizing oil in medium permeability cores compared to high permeability cores. Microscopic diversion due to log-jamming was suggested as the main recovery mechanism, with only minor contributions from interfacial tension reduction and wettability alteration.
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Li, Hui. "An Experimental Investigation of Geometric Effects of Core Samples on Berea Sandstone Geo-mechanical Behaviors." Thesis, University of Louisiana at Lafayette, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10163269.
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Rock geo-mechanical properties are important in petroleum engineering. The determination of reservoir’s mechanical properties is critical to reduce drilling risk and maximizing well and reservoir productivity. Rock geo-mechanical properties vary not only with rock types, but also with measurement method, samples geometry (sample size and length to diameter ratio), and other factors. Because rocks are heterogeneous media, sample geometry can significantly affect measured rock mechanical properties, including unconfined and confined compressive strength, Young’s Modulus, and Poisson’s ratio. In this study, uniaxial compressive tests were conducted on 31 different dimensions of Berea sandstone samples to study the geometry effects on rock geo-mechanical properties. The objective of this research is to provide a fundamental understanding of the geometry effects. Correlations equations were established and standardizing factors were generated to minimize the geometry effects and get more reliable rock mechanical properties. Failure mode of the tested samples was also studied in this work.
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Harnetty, Brian P. "Performing Sonic Archives: Listening to Berea, Sun Ra, and the Little Cities of Black Diamonds." Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1417170787.
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November, Justin Sidney. "A study of soil to geotextile filtration behaviour in conjunction with Berea sand in South Africa." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86381.
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Thesis (MScEng)--Stellenbosch University, 2014.ENGLISH ABSTRACT: Geotextiles perform a number of functions in various applications in civil engineering practise. It is often cost effective and more environmentally friendly versus conventional construction methods. One of the main functions of a geotextile is filtration whereby the geotextile is expected to hold back the soil particles and simultaneously has to allow sufficient water to pass through it. Soils are all different and can be problematic when it comes to designing geotextile filters. One such problematic soil is encountered in KwaZulu- Natal, situated along the east coast of South Africa. The Berea sand is problematic as it can highly variable in its engineering properties over a small area. Geotextiles are becoming more and more common practice in South Africa and little is known about the filtration performance of commercially available geotextiles in conjunction with Berea sand. Local guidelines that are available are out of date and do not provide enough information to assist design engineers in decision making. Many international guidelines are available and it is difficult to choose which one is best suited to Berea sands. This primary objective of this study is to investigate the filtration performance of four variants of commercially available geotextiles and three variants of Berea sand. The applicability of some of the international filter design criteria will also be assessed. The soil to geotextile compatibility testing was carried out as per ASTM D5101 (2006) - Standard Test Method for Measuring the Soil-Geotextile System Clogging Potential by the Gradient Ratio. In total 12 permutations were executed. The results showed that only 5 test permutations met the gradient ratio and permeability criteria. The test results also conclude that the permeability is just as important as the gradient ratio. Thick geotextiles should be considered when used as filters in Berea sands. The available international geotextile filter design criteria were assessed and all showed poor correlation between laboratory results and suggested criteria. Designing geotextile filters in conjunction with Berea reds is challenging and it is recommended that design engineers perform laboratory performance testing in conjunction with their designs.
AFRIKAANSE OPSOMMING: Geotekstiele verrig vir 'n aantal funksies in verskeie programme in die siviele ingenieurswese praktyk. Dit is dikwels meer koste-effektief en omgewingsvriendelik, teenoor konvensionele konstruksie metodes. Een van die belangrikste funksies van 'n geotekstiel is filtrasie, waardeur van die geotekstiel verwag word om van die grond terug te hou, en gelyktydig genoeg water daardeur te laat vloei. Grond verskil en dit kan problematies wees wanneer dit kom by die ontwerp van geotekstiel filters. Een so ‘n problematiese grond kom voor in KwaZulu-Natal, geleë langs die ooskus van Suid-Afrika. (Die) Berea sand is problematies, want dit verander geweldig baie ten opsigte van ingenieurseienskappe oor 'n redelike klein area. Gebruik van geotekstiele word al hoe meer ‘n algemene praktyk in Suid- Afrika, terwyl min bekend is oor die filtrasie prestasie van kommersieel beskikbare geotekstiele in samewerking met Berea sand. Plaaslike riglyne wat beskikbaar is, is verouderd en onvoldoende inligting is beskikbaar aan ontwerpingenieurs vir besluitneming . Baie internasionale riglyne is beskikbaar en dit is moeilik om te besluit watter een die beste van toepassing is vir Berea sand. Die doel van hierdie studie is om die filtrasie prestasie van vier modelle van kommersieël beskikbare geotekstiele en voorbeelde van drie soorte Berea sand te ondersoek. Die toepaslikheid van 'n paar van die internasionale filter ontwerp kriteria sal ook beoordeel word. Die toetsing van grondverenigbaarheid met geotekstiel is uitgevoer soos aangedui in ASTM D5101 (2006 ) – Standaard Toets Metode vir die meet van die grond-Geotekstiel verstopping potensiëel deur die gradient verhouding. In totaal is 12 permutasies uitgevoer. Die resultate het getoon dat slegs 5 toetspermutasies beide gradiënt verhouding en permeabiliteit kriteria bevredig het. Dikker geotekstiele word ook aanbeveel vir gebruik as filters in Berea sand. Van die toets resultate kan ook afgelei word dat die permeabiliteit net so belangrik soos die gradiënt verhouding is. Beskikbare internasionalegeotekstiel filter ontwerp kriteria is nagegaan en al die metodes het swak korrelasie tussen laboratorium resultate en die voorgestelde kriteria getoon. Om geotekstiel filters in samewerking met Berea Reds te ontwerp is 'n uitdaging en dit word aanbeveel dat ontwerpingenieurs laboratorium prestasietoetsing in samewerking met hul ontwerpe uitvoer.
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Lin, Sabrina <1995>. "Nord e Sud. Proposta di Traduzione e commento di alcuni capitoli del libro:“Nanren yu Beren”." Master's Degree Thesis, Università Ca' Foscari Venezia, 2020. http://hdl.handle.net/10579/18239.
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L'argomento principale di questa tesi è la traduzione di tre capitoli del libro "Beiren yu Nanren" scritti da scrittori degli anni 90 tra cui Luxun, più il commento traduttologico del testo. Il libro parla principalmente delle differenze tra il nord e il sud della Cina, di aspetto territoriale, gastronomico, fisionomico e tante altre differenze causate da invasioni diverse.
La prima parte si concentra sulla traduzione dal cinese all'italiano e vengono selezionati un totale di tre capitoli del libro.
Il primo capitolo introduttivo parla delle diverse invasioni del nord e del sud, uno dei fattori della diversità, e le varie differenze di comportamento, carattere descritti in modo molto generico.
Il secondo capitolo descrive principalmente le differenze tra le persone del nord e del sud, non solo le differenze culturali, ma anche l'aspetto, il clima, le abitudini quotidiane. I meridionali vengono considerati più deboli ma più acculturati mentre i settentrionali più forti e robusti, infatti quasi tutti i conquistatori provengono dal nord.
Il terzo capitolo racconta la differenza tra le donne del Nord e del Sud, dall'aspetto alla personalità, dal linguaggio e dal comportamento, e il modo in cui gestiscono certe situazioni è completamente diverso, la donna del nord è più aperta mentre la donna del sud più riservata.
Il quarto capitolo racconta la differenza tra Shanghai e Pechino, hanno il clima diverso, hanno avuto storie diverse e cambiamenti diversi: sono due città completamente opposte, uno è più moderno e di stile occidentale mentre l’altro è più tradizionale. Shanghai rappresenta il sud e Pechino rappresenta il nord.
La seconda parte è il commento traduttologico. Il libro che ho scelto è stato scritto da molti autori negli anni '90, quindi il testo, sia sull’aspetto grammaticale e sia il vocabolario e sia il registro sono un po' più difficili di quelli moderni. Ci sono alcune parole del dialetto locale e le poesie che è una grande sfida nella traduzione.
La terza parte è il glossario delle parole con il pinyin, traduzione in italiano e inglese.
La quarta parte è la bibliografia e le fonti da cui sono tratte le informazioni.
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Imamura, Satoshi. "Information structure in Japanese : scrambling, topicalization and passives." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:24e129aa-ed33-48bd-beec-90453a99560f.
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The main purpose of this thesis is to shed new light on Japanese grammar under the framework of the Givónian approach, with special attention to OSV word orders and by-passives: scrambling (OACCSV), topicalization (OTOPSV), ni-passive (S NPNI V), and niyotte-passive (S NPNiyotte V). This approach measures the discourse status of a referent by utilizing anaphoric and cataphoric co-referencing relationships within the texts. However, it is conceivable that OSV word orders and by-passives are also influenced by multiple factors other than information structure. Specifically, previous studies point out the possibility that heaviness and animacy are relevant to this issue. Therefore, the present study performs the corpus analysis, taking three factors into consideration: heaviness, animacy, and information structure. First, OSV word orders have proven to be influenced by information structure and heaviness. In terms of information structure, scrambling correlates 'topic shift' from the referent of the scrambled object to that of the subject. In contrast, topicalization interrelates with 'continuing topic' realized as the referent of the subject. In terms of heaviness, the direct object tends to be longer than the subject in OSV word orders. Yet, animacy has no influence on the choice of word orders. Second, by-passives are affected by information structure and animacy. In terms of information structure, the ni- and niyotte-passives are selected in order to maintain the topic continuity by promoting the topical logical object to the grammatical subject. However, the ni-passive is relevant to global topic whereas the niyotte-passive is related to local topic. In terms of animacy, the ni-passive prefers animate subjects while the niyotte-passive tends to select inanimate subjects. Yet, heaviness is unrelated to the use of by-passives in Japanese. In conclusion, the thesis provides a functional analysis of OSV orders and by-passives from a descriptive and empirical point of view by using a written Japanese corpus. The new data reported contribute to elucidating the argument encoding system of Japanese.
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Yañez, Angélica María. "Chicano and black radical activism of the 1960s a comparison between the Brown Berets and the Black Panther Party in California /." Diss., [La Jolla] : University of California, San Diego, 2010. http://wwwlib.umi.com/cr/ucsd/fullcit?p1474777.
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Thesis (M.A.)--University of California, San Diego, 2010.Title from first page of PDF file (viewed April 15, 2010). Available via ProQuest Digital Dissertations. Includes bibliographical references (p. 92-100).
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De, Beer Stephanus Francois. "Mother bird, Hovering over the city : space, spirituality & a community-based urban praxis." Thesis, University of Pretoria, 2017. http://hdl.handle.net/2263/66383.
Full textAbstract:
In his thesis, Mother bird hovering over the city: space, spirituality
and a community-based urban praxis, the promovendus adopted a
trans-disciplinary, praxis-approach to consider participatory, critical and
liberationist planning and city-building processes. His journey was about the
soul of the city, embodied in its spaces and its people. It reflected on unfolding
urban spaces, tracing dynamics in the Berea-Burgers Park neighbourhood of
Tshwane’s inner city between 1993 and 2016. The narratives emerging from
this neighbourhood was brought into conversation with a range of other
narratives, hoping to discern and propose a vision for a community-based
urban praxis.
The journey originated from a deliberate option for the city’s most vulnerable
people, hoping to contribute towards a city characterised by radical forms of
inclusion, sustainability and justice. It recognised that space is not neutral and
spatial constructs are shaped by deep value frameworks that are prejudiced,
exclusive and oppressive, or equalising, inclusive, and life-affirming. What the
promovendus sought to discern and outline was a spirituality that can infuse
planning praxis and spatial thinking: making spaces that will mediate dignity,
justice and well-being.
Part I of the study considered a new epistemology, identity and methodology,
expressed in the metaphor of “becoming like children”, requiring a new selfunderstanding
for those involved in planning, city-building or place-making,
but also amongst urban citizens and vulnerable urban dwellers: to reclaim
their own voice and agency in processes of city-making.
In Part II of the study, after describing and deconstructing urban spaces and
discourses in a contextual-narrative way, a spirituality and ethic of urban space
are developed. It argues for a radical shift from planning as bureaucracy and
technocracy, to planning as immersed, participatory artistry: opening up to
the “genius” or (S)pirit of space – the Mother bird – hovering over urban
spaces, responsive to urban cries, of humans and earth alike, and inviting us to
be co-constructors of new and surprising spaces, mending and making whole.Thesis (PhD)--University of Pretoria, 2017.
Town and Regional Planning
PhD
Unrestricted
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Hussler, Bernard. "Utilisation de la chromatographie en phase gazeuse couplée à la spectrométrie de masse pour identifier et différencier les composés de la fraction volatile des huiles essentielles du fruit de différents écotypes de plantes appartenant à la famille des apiacées : heracleum sphondylium, pastinaca sativa peucedanum officinale." Université Louis Pasteur (Strasbourg) (1971-2008), 1990. http://www.theses.fr/1990STR15074.
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VASCONCELOS, Bruno da Silva de. "Avalia??o da efic?cia de aditivo anti-micotoxina em leitoas pr?-p?beres intoxicadas experimentalmente com zearalenona." Universidade Federal Rural do Rio de Janeiro, 2013. https://tede.ufrrj.br/jspui/handle/jspui/2237.
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Brazil has a prominent pork production and it is among the leading of producers and exporters of meat pork in the world. Today, the type of Brazilian pig produced, is of high quality and requires special care, starting at the quality of food, to provided maximum expression of genetic potential. The staple diet of the pig is soy and corn, these can be affected by fungi, which when in favorable conditions to their growth, colonize grain and use their nutrients to their development. As a result, can occur the production of mycotoxins and secondary metabolites, which can be toxic to animals. Zearalenone (ZEA) is a mycotoxin with estrogenics properties which leads to huge losses, especially in reproduction, where it causes abortion, pseudopregnancy, stillbirths, among other symptoms. The use of anti-mycotoxin additive added to the feed is an example of how to prevent it. The yeast wall is a new alternative of adsorbent to be tested. This study aimed to evaluate the effect of an anti-mycotoxin additive, of yeast wall, and the effects of mycotoxin ZEA in prepubertal gilts. A total of 36 prepubertal gilts were divided in 4 treatments: T1 ( ration), T2 (ration + adsorbent), T3( ration + toxin),T4 (ration +toxin+ adsorbent). The concentration used of ZEA were 2 ppm, maximum concentration of the limit established to register as a antimycotoxin additive according to Brazilian laws and the concentration used of anti-mycotoxin additive were 0,2%, gained on earlier in vitro studies. The animals were fed for 21 days with the toxin, weighted and measured the vulva, at the end of treatment were slaughtered for evaluation of the reproductive tract. The results showed no significant statistic difference in feed conversion and live weight between treatments. There were performance reduce in weight gain and feed intake on T3. About measured of vulva, the mean of weight and length of the reproductive tract were significant differences in the treatments with ZEA 2ppm. The adsorbent used was not effective in preventing ZEA mycotoxicosis by the 2ppm, probably due to saturation of the anti-mycotoxin additive molecule by metabolites of the ZEA, that was in higher quantity than mannanoligosaccharide, overtaking the adsorbtive capacity of adsorbent.
O Brasil possui uma produ??o de su?nos de destaque, estando entre os principais produtores e exportadores de carne su?na no mundo. Hoje, o tipo de su?no brasileiro produzido ? de extrema qualidade e requer cuidados especiais, iniciando na qualidade de alimento fornecido, para express?o m?xima do potencial gen?tico. A base da alimenta??o do su?no ? a soja e o milho, e estes gr?os podem ser contaminados por fungos que por sua vez em condi??es favor?veis ao seu crescimento, colonizam os gr?os e utilizam os seus nutrientes para o seu desenvolvimento. Como consequ?ncia pode ocorrer ? produ??o de micotoxinas, metab?litos secund?rios, que podem ser t?xicos aos animais. A zearalenona (ZEA) ? uma micotoxina com propriedades estrog?nicas e que leva a enormes preju?zos, principalmente na reprodu??o, pois pode causar aborto, pseudogesta??o, natimortos, entre outros sintomas. O uso de aditivo anti-micotoxina adicionados na ra??o ? um exemplo de como se prevenir e define-se como uma subst?ncia que por processos f?sico-qu?micos, enzim?ticos e/ou bacterianos se unem a micotoxina, impedindo que esta seja absorvida pelo organismo animal e seja posteriormente eliminada. A parede celular de leveduras ? uma nova alternativa, de adsorvente, a ser testada. O presente trabalho teve como objetivo avaliar o efeito de um aditivo antimicotoxina, a base de parede celular de leveduras, e os efeitos da micotoxina ZEA em leitoas pr?-p?beres. Foram utilizadas 36 leitoas pr?-p?beres divididas em 4 tratamentos: T1(s? ra??o), T2 (ra??o + adsorvente), T3 (ra??o + toxina), T4 (ra??o + toxina + adsorvente). A concentra??o de ZEA utilizada foi de 2ppm, concentra??o m?xima do limite estabelecido para registro de aditivo antimicotoxina segundo as leis brasileiras, e a concentra??o usada de aditivo anti-micotoxina foi de 0,2%, obtidos anteriormente em estudos in vitro. Os animais foram alimentados por 21 dias com a toxina, pesados e feita vulvometria. No final do per?odo experimental foram abatidos para avalia??o do trato reprodutivo. Os resultados encontrados mostraram que n?o houve diferen?a estat?stica significativa no peso vivo e na convers?o alimentar entre os tratamentos. No consumo e no ganho de peso do T3 houve queda no desempenho. Na vulvometria, as m?dias do peso e do comprimento do trato reprodutivo tiveram diferen?a significativa nos tratamentos que levaram ZEA a 2ppm. O aditivo anti-micotoxina utilizado n?o foi eficaz na preven??o da micotoxicose por ZEA a 2ppm, j? que as leitoas manifestaram os sinais caracter?sticos da doen?a provavelmente devido a satura??o da mol?cula adsorvente pelos metab?litos de ZEA, que encontravam-se em maior quantidade que os mananoligaossacar?deos, ao ponto de ultrapassar a capacidade adsortiva do aditivo.
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Sadtler, Daniel Allan. "Passive Tomography to Image Stress Redistribution Prior to Failure on Berea Sandstone and Marcellus Shale for Caprock Integrity." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/32402.
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A recent concern is the cause and effect of global climate change. Many institutions give credit for these changes to the increased levels of greenhouse gases in the atmosphere, in particular the increase in the amount of carbon dioxide present. There is a growing interest in carbon capture and storage (CCS) as a means to reduce the global impact of CO2 on the climate as a greenhouse gas. Carbon capture is the process of removing CO2 from the atmosphere as well as preventing it from entering the atmosphere by means of exhaust. The captured carbon is stored underground in reservoirs. These reservoirs have the storage space to handle the volume of CO2 injected as well as a caprock layer preventing the injection fluid from returning to the surface. Additionally, CO2 can be used for enhanced oil recovery (EOR).
To monitor the injection sites used for the CO2 storage or EOR process, the integrity of the caprock as well as the surrounding rock formations are the locations of interest. Knowing when a joint or a fracture is going to slip is necessary to prevent major failures within geologic strata. It is necessary to prevent these slips from occurring to retain the integrity of the caprock, which is keeping the fluid within the reservoirs.
Passive acoustic emissions monitoring was used to determine how effectively failure locations could be located in three unique tests. Coupled with double difference tomography, the failure of a Berea Sandstone sample and Marcellus Shale sample were calculated to determine how well the stress redistribution within the sample could be mapped using the recorded data. For the main indenter tests two samples were tested, a piece of Berea Sandstone and a piece of Marcellus Shale. The secondary test was a transform shear test using sandstone, and the third test for caprock upheaval test attempted to recreate the failure of caprock due to injection pressure. For all tests, the samples were monitored using acoustic emissions software until failure or it was deduced that the test would not produce failure.
The secondary tests did not progress through the data analysis as far as the indentation tests, however valuable information was gathered from these tests. The shear test demonstrated the
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effectiveness of the passive acoustic emissions monitoring system to record shear failure. This test provides confidence in this technology to record and located events that are not occurring in compression. The caprock upheaval tests were not successful in causing failure in the caprock, however during the testing the passive acoustic emissions monitoring system was able record and locate events that occurred within the sample around the boundary on the reservoir. At the reservoir boundaries there was evidence of fluid flowing through the reservoir, and the events align with these locations. This positive result shows that the monitoring system is able to locate events induced by fluid injection.
The results of these tests provide confidence in the passive acoustic emissions monitoring system to record accurate data for the caprock integrity monitoring. The tomograms created from the recorded data accurately imaged the areas of interest within the rock samples. From these results, passive acoustic emissions monitoring systems coupled with double difference tomography has proven capable of monitoring homogeneous samples within a laboratory environment. With further testing, this technology could possibly be a viable option for monitoring carbon sequestration sites.Master of Science
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Shah, Syed Suhail Mumtaz. "Differential responses of a Scottish landrace of barley (Bere) to a range of agricultural inputs in Orkney." Thesis, University of Aberdeen, 2011. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=182246.
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In Orkney, Bere (a landrace of barley) is traditionally cultivated in marginal areas with very low inputs. There was little information on the effects of different agricultural inputs on Bere. Therefore this research investigated the effects of nitrogen, fungicide and plant growth regulator on grain yield, quality and economic returns of Bere which were compared with Optic (a modern malting barley variety) during 2008 and 2009. The present study found that ears m-2 and 1000-grain weight were two important components responsible for yield variations between Bere and Optic and were consistently lower in the former than the latter. The results indicated that disease score, lodging index and grain nitrogen content were higher in Bere than Optic, and the former had more stable yield than the latter during the study period. Increasing nitrogen fertilizer rate enhanced ears m-2 and grain yield of both varieties. However, the highest N rate (90 kg ha-1) resulted in the highest disease score and lodging index which consequently reduced grain quality of Bere. Fungicide application at Zadoks growth stage 37 reduced disease score and enhanced grain yield of both varieties compared with control plots and this was attributed to higher ears m-2 and 1000-grain weight. The plant growth regulator Upgrade (mixture of ethephon and chlormequat chloride) applied at the recommended rate at Zadoks growth stage 31 resulted in the lowest lodging index in Bere. However, it had no significant effect on grain yield and grain nitrogen content of both varieties. Gross margin analysis indicated that Bere compared favourably with Optic due to its higher grain price. Although, plant growth regulator did not justify its expenditure for controlling lodging, its application is recommended to ease harvesting and to avoid pre-harvest yield and quality losses in Bere.
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Vlachou, Charikleia. "La coopération entre les autorités de régulation en Europe (communications électroniques, énergie)." Thesis, Paris 2, 2014. http://www.theses.fr/2014PA020055/document.
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La coopération entre les autorités de régulation en matière de communications électroniques et d’énergie s’inscrit dans le contexte de mutation de l’administration européenne qui est intervenue au fil des deux dernières décennies. Son architecture institutionnelle est marquée par la forte européanisation des autorités de régulation,laquelle est le résultat de l’harmonisation opérée par le droit de l’Union européenne et de la diffusion de meilleures pratiques. La coopération entre les autorités de régulation se fonde néanmoins sur des principes juridiques flous en droit primaire. Elle est de plus marquée par l’ambigüité de la délégation des pouvoirs à l’échelle de l’Union européenne. Dans les deux secteurs étudiés, elle traduit l’hybridation des modèles de gouvernance que sont les « agences de l’Union européenne » et les « réseaux d’autorités », car elle a donné naissance à une « agence en réseau » puissante dans le domaine de l’énergie - l’ACRE- et à un « réseau agenciarisé » faible en matière de communications électroniques– l’ORECE.Pour assurer l’effectivité de l’ « Union de droit », les actes de ces organismes de l’Unioneuropéenne sont contrôlés par le juge de l’Union européenne, dont la saisine par lesparticuliers reste malheureusement difficile. Dans ce contexte, le Médiateur européen présente un potentiel fort en tant qu’instance de contrôle complémentaire. Quant au prétendu déficit démocratique souligné par les détracteurs de l’Union européenne, il est ici démenti car le Parlement européen assure un contrôle démocratique efficace sur les organismes étudiés. Si ses moyens de contrôle politique sont largement informels et méritent d’être approfondis, le contrôle qu’il exerce dans le cadre de la procédure de décharge budgétaire peut, quant à lui, déboucher sur une transformation de l’architecture institutionnelle des organismes étudiésThe cooperation among regulatory authorities in the field of electronic communications and energy takes place against the background of the transformation of the european administration in the last two decades. Its institutional design bears the mark of the europeanisation of regulators through the harmonisation brought about by EU law and the diffusion of best practices. The cooperation among regulatory authorities is formalised on the basis of a primary law that is vague. It is also marked by ambiguity with regard to the delegation of pouvoirs on a European level. In the sectors of energy and electronic communications, it reflects the « hybrisation » of two models of governance, European agencies and networks, giving birth to a powerful « network agency » in the field of energy-the ACER- and a weak « agenciarised network » in the field of electronic communications- the BEREC. The control of the acts of these two organisms in a « Union of law » is ensured by the Cour of justice of the European Union which is, however, difficult to accessfor individuals. In this context, the European Ombudsman demonstrates a real potential as a complementary forum of control. Against a priori hypotheses with respect to the democratic deficit of the European Union, the European Parliament effectively ensures the democratic control of ACER and BEREC. Even if its means of political control are largelyinformal and should be better defined, the control it exercices in the context of the budgetary discharge procedure is capable of transforming the institutional design of the above mentioned organisms
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Knittel, Antje Beret [Verfasser], Hildegard [Gutachter] Graß, and Tim [Gutachter] Lögters. "Fallstudie zum interdisziplinären Versorgungsangebot für Gewaltopfer in der Unfallchirurgie der Universitätsklinik Düsseldorf / Antje Beret Knittel. Gutachter: Hildegard Graß ; Tim Lögters." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2016. http://d-nb.info/1111774226/34.
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Gibbons, Maureen. ""A bag, a beret and a book of poems" : a verse novel & an exploration of generic hybridity : and exegesis." Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/57485.
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A Bag, A Beret and a Book of Poems deploys the concept of the silhouette biography, with its reliance on contextual detail to build the sense of a real life, in conjunction with the form of the verse novel, to construct a life narrative for a homeless woman whose body was found in Kings Park in 2001. The exegesis outlines and analyses the reading that informed the generic decisions made in relation to the creative project.
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Olafuyi, Olalekan Adisa Petroleum Engineering Faculty of Engineering UNSW. "Experimental investigation of two-phase flow properties of small core samples." Awarded by:University of New South Wales. Petroleum Engineering, 2008. http://handle.unsw.edu.au/1959.4/43391.
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This thesis presents an experimental investigation of two-phase flow properties of porous rock samples having different scales ranging from micro-CT imaging to conventional core plug scales. Advances in micro-CT imaging of porous materials provide the opportunity to extract representative networks from the images. This improves the predictive capability of porescale network models to predict multiphase flow properties. However, all these predictions need to be validated with laboratory data. Micro-CT imaging is currently limited to small sample sizes, having bulk volumes of the order of 0.1 cm??. Conventional core plugs, however, have sizes several orders of magnitude larger than that (bulk volumes of 10 cm?? or larger). The aim of this thesis is to investigate the scale effect on laboratory data and to provide reliable experimental data which can be used to test the predictive value of microCT based network models. Berea and Bentheim sandstones and Mount Gambier carbonate were used in the experiments. The core samples were thoroughly cleaned in order to obtain strongly, uniform water-wet conditions. Simple well-characterized fluid systems were chosen in the experiments: Air-brine fluid-system for drainage capillary pressure, resistivity index and spontaneous imbibition experiments while oil-brine fluid-system for wettability and relative permeability measurements. Drainage capillary pressure, resistivity index, relative permeability and spontaneous imbibition measurements were made on the cores having bulk volumes ranging from 0.1 to 12 cm??. Previous studies have shown that experiments at this scale are still lacking. The wettability was tried to keep strongly water-wet for all experiments. The experimental results show that the measurements of drainage capillary pressure, and resistivity index and spontaneous imbibition on small core samples, having similar scales as micro-CT imaging can be made accurately in the laboratory. The measurement of relative permeability remains challenging. This thesis concludes that commonly used homogeneous rock types (Berea and Bentheim sandstones and Mt. Gambier carbonate) can be considered to be sufficiently homogeneous from the pore to core scale based on the two-phase flow properties examined in this study. Hence, laboratory data taken from these rocks using conventional core plugs can be used to calibrate micro-CT based network models for multiphase flow properties.
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Rocha, Erika Dantas de Medeiros. "Efeitos da suplementa??o oral de zinco sobre o crescimento de crian?as pr?-p?beres saud?veis e eutr?ficas." Universidade Federal do Rio Grande do Norte, 2014. http://repositorio.ufrn.br/handle/123456789/19528.
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Introdu??o: o zinco ? um importante micronutriente para numerosos processos bioqu?micos em animais e humanos, desempenhando papel de destaque no crescimento e desenvolvimento. Em popula??es mundiais, a defici?ncia prim?ria grave de zinco n?o ? comum, embora, a defici?ncia leve seja bastante prevalente. Considerando que o zinco ? essencial para a sa?de humana e regula o sistema hipot?lamo, hip?fise, f?gado e osso, buscamos averiguar os seus efeitos no eixo GH-IGF1-IGFBP3 agudamente, mediante administra??o intravenosa com o elemento zinco, e cronicamente, mediante suplementa??o oral com o elemento zinco, usando doses fisiol?gicas de 0.06537 mg Zn/kg (via intravenosa) e 10 mg Zn/dia (via oral). A inclus?o de crian?as pr?-p?beres aparentemente saud?veis e eutr?ficas sem defici?ncia de zinco ? raro na literatura, pois grande parte das publica??es foram reportadas em crian?as apresentando defici?ncia de zinco. A metodologia aplicada foi absolutamente inovadora e original, tornando o estudo altamente relevante para a interface entre endocrinologia e nutri??o. Objetivo: investigar os efeitos da suplementa??o oral e administra??o intravenosa com o elemento zinco sobre a secre??o de GH, IGF1, IGFBP3, OCN, ALP, TRAP e PT em crian?as aparentemente saud?veis e eutr?ficas sem defici?ncia de zinco. M?todos: o estudo foi conduzido durante um per?odo de tr?s meses, e caracterizado por ser randomizado controlado triplo cego. As crian?as foram selecionadas por amostragem n?o probabil?stica de conveni?ncia, provenientes de escolas p?blicas municipais, de ambos os g?neros, na faixa et?ria compreendida entre 8 e 9 anos de idade, divididas em grupo controle (20 crian?as recebendo solu??o placebo contendo 10% de sorbitol) e grupo experimental (20 crian?as suplementadas com o elemento zinco na forma de sulfato de zinco heptahidratado ? ZnSO4.7H2O). As crian?as foram submetidas ? suplementa??o oral de zinco elementar (10 mg Zn/dia) e ? administra??o intravenosa de zinco (0.06537 mg Zn/kg de peso corporal), na forma de ZnSO4.7H2O, cujas amostras sangu?neas foram coletadas em 0, 60, 120, 180 e 210 minutos. Foram realizadas avalia??es antropom?tricas e diet?ticas e dosagens bioqu?micas e hormonais nas crian?as estudadas. Resultados: ap?s a suplementa??o oral, foi observado no grupo experimental (i) aumento significativo dos valores de ingest?o de energia total, prote?na e gordura total (p = 0.0007, p< 0.0001, p< 0.0001, respectivamente), (ii) aumento significativo do zinco s?rico basal (p< 0.0001), aumento significativo das concentra??es plasm?ticas de fostatase alcalina (p = 0.0270), e (iv) correla??o positiva com o IGF1, IGFBP3, OCN, comparando antes e ap?s a suplementa??o (p = 0.0011, p< 0.0001, p< 0.0446, respectivamente). Durante a administra??o venosa de zinco, as concentra??es plasm?ticas de IGF1 e IGFBP3 aumentaram significativamente no grupo experimental (p = 0.0468, p < 0.0001, respectivamente). Em rela??o o c?lculo da adequa??o aparente, segundo as DRI, para o c?lcio, houve inadequa??o da dieta com 85% de confiabilidade dos dados; para o ferro, adequa??o da dieta, com 85% de confiabilidade dos dados. Para o zinco, adequa??o da dieta, com 50% de confiabilidade dos dados. Conclus?es: a suplementa??o oral com o elemento zinco pode ter estimulado um aumento na ingest?o de energia total, prote?na e gordura total, assim como, nas concentra??es basais de zinco s?rico e nas concentra??es plasm?ticas de fosfatase alcalina. A administra??o intravenosa de zinco aumentou as concentra??es s?ricas de zinco e as concentra??es plasm?ticas de GH, IGF1 e IGFBP3 no grupo experimental.
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Spolniak, Dagmara. "Pour votre liberté et la nôtre, Berek Joselewicz (1764-1809) : un héros polono-juif de l'époque Empire : ses compagnons, ses successeurs." Paris 8, 2011. http://www.theses.fr/2011PA083550.
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La thématique et la chronologie indiquées dans le titre de notre travail présentent d’une manière très stricte l’objet de notre intérêt qui porte sur beaucoup plus que le seul personnage de Berek Joselewicz ; en effet, nous considérons ce dernier comme le symbole d’un phénomène plus large. Car, comme on le découvre, Berek ne fut pas le seul à combattre pour la Pologne ; il fut pourtant celui dont le mythe a voilé les exploits de nombreux autres « soldats-patriotes » juifs, inscrits dans le rang des éléments indispensables de cette époque. Quant à la chronologie, nous nous sommes penchés principalement sur les études concernant la période qui va du deuxième partage de la Pologne (1793) jusqu’à la fin de l’époque napoléonienne (1815). Nous ne nous occupons que marginalement des écrits historiques concernant la population juive dans la période ultérieure ; ce qui nous intéresse surtout, dans ce domaine, c’est la vie du fils de Berek Joselewicz – Józef. Une question à part concerne les officiers juifs ayant servi sous les étendards de Napoléon, qui, après la chute de l’Empereur, durent émigrer, pour la plupart en France. Si l’on voulait traiter cette question de plus près, il faudrait procéder à des recherches très larges, qui, faute de renseignements, seraient faites totalement à tâtons, et élargiraient remarquablement les cadres du présent travail. Ce problème, sans doute intéressant et important dans l’histoire des Juifs « napoléoniens », devrait devenir le sujet d’une étude à part, ou même de plusieurs études. L’axe principal de notre travail sera donc un axe chronologique, et le fil conducteur de la narration seront les accomplissements de Berek JoselewiczThe subject matter and chronology indicated in the topic strictly define the object of my interest, and it includes not only the character of Berek Joselewicz, who has been treated by me as a symbol of a much wider phenomenon. This thesis has radically a chronological order. The plot of the narrative is Berek Joselewicz' s work. In Chapter One I am trying to present the shaping of the history and the lines of development of the Jews in Poland over many hundreds of years, which is essential for understanding the history of the Jews in general. Thus I encroach on the ground of a subjective history of historiography. In further part I reflect on the situation of the Jews in the Napoleonic France and its implications in the Duchy of Warsaw, which was a natural orbit of the Empire. Chapter Three is devoted totally to the essence of the issue and the main topic of this thesis, namely Berek Joselewicz. A Polish Jew, a member of the Polish legions, a character contrasting with an established stereotype of a Jew not fit for military service has not attained a biographic elaboration yet. The next chapter is a kind of Berek son's - Józef Berkowicz - biogram, who is in a way his natural inheritor. In Chapter Five I present the characters of not less interesting Polish Jewish heroes, who are presently half if not totally forgotten, and at the same time, in the part closing the chapter, I draw attention to a separate and enticing for a researcher issue, namely the Frankists, who departed from Judaism in favor of Catholicism or protestant confessions. In the annex, which crowns the thesis, I discuss the influence of Berek Joselewicz's legend on present - day generations, especially in the context of a modern perceiving of heroism. The thesis is crowned with an epilogue, in which I offer a slightly different outlook on the role of great Jews fighting for democratic and independence ideals in the Napoleonic period
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Nguyen, Viet Hoai Petroleum Engineering Faculty of Engineering UNSW. "A dynamic network model for imbibition and film flow." Awarded by:University of New South Wales. Petroleum Engineering, 2006. http://handle.unsw.edu.au/1959.4/25495.
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This thesis describes a new dynamic network model for imbibition which is based on a physically realistic description of the complex dynamics of corner film flow, swelling and snap-off. The model shows that film flow is a capillary driven non-linear diffusive process and that the competition between snapoff and frontal displacements is rate dependent and results in rate dependent relative permeabilities and residual saturations. In contrast to previously published models in which length scales for snap-off are either specified a priori or calculated assuming steady-state film flow and constant film conductivities, in the present model, snap-off arises as a natural consequence of the fully transient nature of film flow and swelling. The network model is used to analyse the complex interaction between displacement rate, contact angle, aspect ratio and pore and throat shape on relative permeability and residual saturation. Computed relative permeabilities and residual saturations are compared with laboratory measurements reported in the literature. It is concluded that the magnitude of the rate effect on imbibition relative permeabilities and residual saturations for a particular rock microstructure and wettability condition depends largely on the pore-throat aspect ratio. Higher aspect ratios result in stronger rate effects than do smaller aspect ratios.
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Berek, Harry [Verfasser], Christos G. [Gutachter] Aneziris, Michael [Gutachter] Scheffler, and Horst [Gutachter] Biermann. "Weiterentwicklung und Anpassung neuer Methoden der Mikrostrukturanalyse für keramische Systeme mit Phasenumwandlungen / Harry Berek ; Gutachter: Christos G. Aneziris, Michael Scheffler, Horst Biermann." Freiberg : Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2013. http://d-nb.info/1220837369/34.
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Batino, Sabrina. "Itinerari del sacro nelle forme del bere : articolazioni morfologiche e funzionali della ceramica greca ad uso potorio in ambito rituale." Oxford [u.a.] Archaeopress, 2009. http://bvbr.bib-bvb.de:8991/F?func=service&docl̲ibrary=BVB01&docn̲umber=017727978&linen̲umber=0001&funcc̲ode=DBR̲ECORDS&servicet̲ype=MEDIA.
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Capustiac, Alina Verfasser], Dieter [Akademischer Betreuer] [Schramm, Dorel [Akademischer Betreuer] Banabic, Wojciech [Akademischer Betreuer] Kowalczyk, Staicu [Akademischer Betreuer] Stefan, and Berce [Akademischer Betreuer] Petru. "Development and application of smart actuation methods for vehicle simulators / Alina Capustiac. Gutachter: Wojciech Kowalczyk ; Staicu Stefan ; Berce Petru. Betreuer: Dieter Schramm ; Dorel Banabic." Duisburg, 2013. http://d-nb.info/1029960224/34.
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Lopes, M?rcia Marilia Gomes Dantas. "M?todos de avalia??o nutricional para a suplementa??o oral com zinco em crian?as pr?-p?beres n?o deficientes em zinco." Universidade Federal do Rio Grande do Norte, 2016. http://repositorio.ufrn.br/handle/123456789/21002.
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Existem muitos m?todos de avalia??o nutricional, por?m a maioria possui limita??es, especialmente para a avalia??o de interven??o nutricional. O consumo inadequado de energia e/ou nutrientes podem ter uma influ?ncia prejudicial ? sa?de das crian?as, comprometendo significativamente o crescimento e desenvolvimento deste grupo et?rio. O zinco ? um microelemento essencial, contribuindo para o crescimento, desenvolvimento e composi??o corporal de crian?as. Diante disso, a avalia??o nutricional em crian?as ? uma ferramenta essencial na pr?tica cl?nica, pois ? importante para monitorar a sa?de e estado nutricional. Assim, esse trabalho objetivou avaliar m?todos de avalia??o nutricional para a suplementa??o oral com zinco em crian?as n?o deficientes em zinco, utilizando a antropometria, medidas bioel?tricas, consumo alimentar e dados bioqu?micos. Realizou-se um estudo controlado, randomizado, triplo-cego. As crian?as, entre 8 e 9 anos, foram divididas em um grupo controle (10% de sorbitol, n = 31) e um grupo experimental (10 mg Zn/dia, n = 31) durante 3 meses. Avalia??o antropom?trica, bioel?trica, alimentar e laboratorial foi feita no in?cio e no final do estudo em todas as crian?as. Foi utilizado o GraphPad Prism software para as an?lises estat?sticas, BIVA software 2002 para as medidas biol?tricas, NutWin software 1.5 para avalia??o diet?tica e o zinco s?rico foi medido por espectrofotometria de absor??o at?mica. Nosso estudo mostrou: (1) aumento do ?ndice de massa corporal por idade e aumento do ?ngulo de fase no grupo experimental; (2) correla??o positiva entre os par?metros de avalia??o nutricional em ambos os grupos; (3) aumento de tecido mole e, principalmente, massa livre de gordura, na composi??o corporal do grupo experimental, determinado pela an?lise do vetor de imped?ncia bioel?trico e ?ngulo de fase; (4) aumento do consumo de todos os nutrientes no grupo experimental; (5) e aumento da concentra??o de zinco no soro em ambos os grupos (p < 0.0001). A suplementa??o foi ben?fica, pois o zinco melhorou a composi??o corporal sem ganho de massa gorda, observada a partir da interpreta??o combinada de todos os m?todos. Devido a n?o exist?ncia de refer?ncia concernente ? BIVA para estudos de interven??o, s?o necess?rios dados longitudinais para investigar a migra??o de vetores durante a suplementa??o com zinco. Estes resultados refor?am a import?ncia da utiliza??o de v?rias t?cnicas para avaliar o estado nutricional das popula??es, principalmente se submetido a algum tipo de interven??o.
Background: Zinc is an essential nutrient that is required for numerous metabolic functions, and zinc deficiency results in growth retardation, cellmediated immune dysfunction, and cognitive impairment. Objective: This study evaluated nutritional assessment methods for zinc supplementation in prepubertal nonzinc- deficient children. Design: We performed a randomised, controlled, triple-blind study. The children were divided into a control group (10% sorbitol, n = 31) and an experimental group (10 mg Zn/day, n = 31) for 3 months. Anthropometric and dietary assessments as well as bioelectrical measurements were performed in all children. Results: Our study showed (1) an increased body mass index for age and an increased phase angle in the experimental group; (2) a positive correlation between nutritional assessment parameters in both groups; (3) increased soft tissue, and mainly fat-free mass, in the body composition of the experimental group, as determined using bioelectrical impedance vector analysis; (4) increased consumption of all nutrients, including zinc, in the experimental group; and (5) an increased serum zinc concentration in both groups (p < 0.0001). Conclusions: Given that a reference for body composition analysis does not exist for intervention studies, longitudinal studies are needed to investigate vector migration during zinc supplementation. These results reinforce the importance of employing multiple techniques to assess the nutritional status of populations.
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MEDEIROS, Bianca Pachiel. "Caracteriza??o ultrassonogr?fica e histopatol?gica de les?es de gl?ndulas mam?rias de vacas de descarte." Universidade Federal Rural do Rio de Janeiro, 2017. https://tede.ufrrj.br/jspui/handle/jspui/2430.
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The aim of this study was to characterize by ultrasonography and histopathology the injuries of cows discarded. For this, 50 mammary glands were collected from cows slaughtered for food in a frigorific on Rio de Janeiro state. Each mammary quartery was externally and internally inspected and we evaluated the presence of injuries and alterations. Twenty-six glands were evaluated by ultrasonography using a 7.5 MHz transrectal transducer. For the histopatological examination we collected fragments with macroscopic alterations that were placed in flasks containing formalin 10% buffered solution of routinely processed, stained with hematoxylin and eosin and evaluated in microscopy. The most of macroscopic changes occurred in the mammary parenchyma and few changes were observed in the skin and teats. The most frequent changes in the parenchyma were fibrosis, followed by hyperemia, hypertrophy, presence of abscesses and edema. In addition, different types of secretion were observed: milky with normal appearance, milky with whitish or yellowish lumps, thick yellowish-greenish, gelatinous with homogeneous translucent appearance, ranging from colorless, yellowish and brownish yellow. In ultrasonography, changes in ecotexture, echogenicity, presence of gas, nodules and high cellularity content were observed in the parenchyma, gland cistern and teats. The most of teats showed normal wall, followed by hyperechoic and few of mixed echogenicity.The content observation was not possible in most of the teats cisterns, and when we observed, the majority had content without cellularity (normal). In the parenchyma, the most of the contents observed showed mixed or increased echogenicity, most of heterogeneity ecotexture. In the histopathological examination of the mammary tissues, the most frequent finding was the presence of inflammatory infiltrates more commonly consisting of lymphocytes and macrophages. Inflammatory cells were most frequently within the tubules and surrounding the acini and galactophore ducts. In the skin was observed orthokeratosisand and in teats the papilloma in addition moderate or mildmultifocal chronic granulomatous dermatitis. In lymph nodes only one alteration characterized as moderate multifocal acute purulent lymphadenitis was observed. In addition to inflammatory infiltrates, the presence of corpora amylacea in seven samples was observed in the mammary parenchyma. It is concluded that the macroscopic, ultrasonographic and histopathological evaluation methods added to the physical examination can promote a more complete and efficient diagnosis for the diseases of the mammary glands of this species.
Prop?s-se com este estudo caracterizar por ultrassonografia e histopatologia as les?es de gl?ndulas mam?rias de vacas de descarte. Para isso, foram coletadas 50 ?beres (200 quartos mam?rios) de vacas abatidas para consumo em um frigor?fico no Estado do Rio de janeiro. Cada quarto mam?rio foi inspecionado externa e internamente, sendo avaliadas as les?es e as altera??es presentes. Vinte e seis gl?ndulas foram avaliadas por ultrassonografia utilizando-se transdutor retal de 7,5 MHz. Para o exame histopatol?gico foram coletados fragmentos com altera??es macrosc?picas, acondicionados em frascos contendo formol a 10% tamponado, processados rotineiramente, corados com hematoxilina e eosina e avaliados em microscopia ?ptica. A maior parte das altera??es macrosc?picas ocorreu no par?nquima mam?rio e poucas altera??es foram observadas na pele e nos tetos. As altera??es mais encontradas no par?nquima foram fibrose, seguida de hiperemia, hipertrofia, abscessos e edema. Al?m destas foram observados diferentes tipos de secre??o: leitosa com aspecto normal, leitosa com grumos esbranqui?ados ou amarelados, espessa de colora??o amarelo-esverdeada, gelatinosa com aspecto homog?neo transl?cido variando entre incolor, amarelada e amarelo-amarronzada. Na ultrassonografia foram observados no par?nquima, cisterna da gl?ndula e dos tetos altera??es de ecotextura, ecogenicidade, presen?a de g?s, n?dulos e conte?do com alta celularidade. A maioria dos tetos apresentou parede normoecoica, seguida por hiperecoica e poucos de ecogenicidade mista. A observa??o de conte?do n?o foi poss?vel na maioria das cisternas do teto, e quando observado a maioria apresentava baixa celularidade (normal). No par?nquima, a maioria dos conte?dos observados apresentaram ecogenicidade mista ou aumentada, a maioria de ecotextura heterog?nea. No exame histopatol?gico dos tecidos mam?rios, o achado mais frequente foi a presen?a de infiltrado inflamat?rio, mais comumente consistindo de linf?citos e macr?fagos. As c?lulas inflamat?rias estavam com maior frequ?ncia no interior dos t?bulos e circundando os ?cinos e ductos galact?foros. Na pele foi observada ortoqueratose, nos tetos papiloma e dermatite granulomatosa cr?nica multifocal leve ou moderada. Em linfonodos apenas observou-se uma altera??o caracterizada como linfadenite purulenta aguda multifocal moderada. Al?m dos infiltrados inflamat?rios, no par?nquima mam?rio foi observada a presen?a de corpora amylacea em sete amostras. Conclui-se que os m?todos de avalia??o macrosc?pica, ultrassonogr?fica e histopatol?gica, somados ao exame f?sico podem promover um diagn?stico mais completo e eficiente para as enfermidades de gl?ndulas mam?rias desta esp?cie.
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Southworth, Catherine Louise. "The use of microsatellite markers to differentiate UK barley (Hordeum vulgare) varieties and in the population genetic analysis of bere barley from the Scottish islands." Thesis, Heriot-Watt University, 2007. http://hdl.handle.net/10399/91.
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Simpson, Jenny Lee. "An exploration of ego impairment in Bipolar Mood Disorder using the Ego Impairment Index-2." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/27306.
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The study was exploratory in nature, with 62 adult participants participating in this research. The aim of the study was to determine the level of ego impairment, if any, among a group of patients diagnosed with Bipolar Disorder. The data obtained from this sample was subjected to the Rorschach-based Ego Impairment Index-2 (EII-2). An in-depth analysis of the composite variables of this index was performed, allowing a comprehensive grasp of the implications of ego impairment in everyday functioning. The study was conducted in order to ascertain the nature of the psychological dynamics at play amongst this population group. The value of using the EII-2 is seen in its ability to establish various strengths and weaknesses in areas of ego functioning that are a core component of the personality, rather than behavioural manifestations that are sporadic and subject to change. Thus the results will reflect traits that are enduring and fundamental when considering the personality. In addition, the areas of psychological functioning that were determined were linked to the current conceptualisation of Bipolar Disorder, which, at present, is primarily conceived of as a biological disorder. The results of the EII-2 yielded from this sample indicated an overall moderate ego impairment falling within the moderate range, indicating that for this population, an impairment of ego was evident. Particularly, the domains of reality testing, cognitive functioning and object relatedness seemed to be most impaired.Dissertation (MA)--University of Pretoria, 2010.
Psychology
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Human, Martie. "Encore - performing arts centre." Diss., Pretoria : [s.n.], 2003. http://upetd.up.ac.za/thesis/available/etd-11212003-110815.
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Battaglia, Michael J. "A multi-methods approach to determining appropriate locations for tree planting in two of Baltimore's tree-poor neighborhoods." Ohio : Ohio University, 2010. http://www.ohiolink.edu/etd/view.cgi?ohiou1275679254.
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Van, der Linde Dorothea Leedia. "Identifying the export trade barriers of the business services sector in South Africa / Dorothea Leedia van der Linde." Thesis, North-West University, 2012. http://hdl.handle.net/10394/8445.
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A service can be traded either directly between a consumer and provider of the service or a service can serve as an input into the manufacturing of various products and other services that are traded. Trade in services has therefore become an essential part of global trade and contributes significantly to global, as well as South African economic growth, development and productivity. Service trade has furthermore been growing at a greater rate than trade in manufactured goods. The growth of services trade can be attributed to growth in goods trade, technological advances, rising per capita incomes, micro-economic reforms, as well as increased consumer and business demand, and technological change.
According to the GATS’ (General Agreement on Trade in Services) services sectorial classification list, the service sector can be classified into twelve major categories and these sectors can further be divided into 160 sub-sectors. One of the sub-sectors that have been identified that has significant growth potential globally and for South Africa is the sub-sector, ‘other business’ services. This sub-sector falls under the sector, business services. Trade data revealed that this sub-sector is one of the top three traded service categories internationally, as well as for South Africa. For the purpose of this study the focus was specifically on ‘other business’ services provided by members of the BEPEC (Built Environmental Professional Export Council). The services performed by the members of the BEPEC are: consulting engineering, architectural, quantity surveying, and construction project managing services. These services are inputs into the manufacturing or construction of human creations such as buildings, structures, dams, roads etc.
Trade barriers, however, hinder the free flow of services from the service provider to customers in other countries. This is no different for the providers of ‘other business’ services. Therefore in order to increase the competitiveness of South Africa’s ‘other business’ services sector internationally; the primary objective of this study was to identify the internal, as well as external barriers experienced by the exporters of ‘other business’ services. These internal and external barriers were identified by means of a questionnaire that the members of the BEPEC, who are exporters of ‘other business’ services, completed. Once these barriers were identified recommendations were made to the South African government.
The most significant internal barriers were found to be: • lack of information about foreign markets; • lack of information on how to enter these foreign markets; • lack of personnel who are experienced in export activities; • scarcity of internal financial resources for export purposes and export promotion. • The most significant external barriers were found to be: • exchange rate risk and the risk of non-payment; • corruption and bribery; • risks involved with political instability in a country; • restrictions on immigration provisions such as delay in obtaining entry visas, residency or work permits; • poor infrastructure; • foreign government procurement policies; • distance to the target market. All of the identified barriers can mostly be addressed by the South African government by providing training, the provision of market related information, and trade negotiations.Thesis (MCom (International Trade))--North-West University, Potchefstroom Campus, 2012
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Edge, Shaun Joseph. "The growing role of Special Forces in modern warfare with specific reference to the United States of America." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/27310.
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The objective of this study is to assess the growing role of Special Forces in modern warfare, with specific reference to the United States of America. The main question that the study seeks to address is what are the implications of the growing role of Special Forces in modern warfare? The study also seeks to ascertain why exactly this growth is occurring and whether or not this will have a bearing on the future of not only the manner in which the US conducts conflict but also global conflict as a whole. In order to address these issues the study will look at conventional and unconventional warfare and forces; the roles and missions of Special Forces and the composition of US Special Forces; the role of US Special Forces in modern warfare prior to the September 11, 2001 terrorist attacks; and the role of the US Special Forces in the 2001 invasion of Afghanistan. An analysis of conventional and unconventional warfare as concepts, as well as the forces that constitute conventional and unconventional forces was first done in order to provide some perspective into what these concepts and forces are and more specifically, what differentiates them. Specific reference was made here to the United States’ approach to warfare from the days of the American Revolution up to and including the end of the Cold War. Emphasis is placed on the growing role of US Special Forces throughout the study and this is achieved through the use of four major case studies, namely the 1991 Gulf War; Somalia (1992-1993); the Balkans (1995-2001); and the 2001 ‘Special Forces war’ in Afghanistan. The case studies that dealt with the 1991 Gulf War, Somalia and the Balkans elucidated the growing role of both unconventional warfare and specifically US Special Forces and Special Mission Units since the end of the Cold War. The case study of the 2001 invasion of Afghanistan provided the culmination of the shift from conventional to unconventional warfare and the execution of the campaign as a ‘Special Forces war.’ The study demonstrates that since the end of the Cold War in the 1990’s, unconventional warfare has increasingly become more ubiquitous and can be said to be replacing, or at least equalling in stature, conventional warfare. This has the possibility of dramatically affecting how warfare is executed both currently and more importantly, in the future. The study went on to show that unconventional warfare is not akin to conventional warfare, especially with regard to the forces needed to respond to such conflicts and that Special Forces are the forces most applicable and most effective in dealing with unconventional warfare. The study confirms that Special Forces are the solution to the growing prominence of unconventional warfare and that countries, and specifically the United States can more effectively counter the threat of unconventional warfare and unconventional forces by shifting Special Forces from a supporting component to conventional forces to a supported component. This would require a massive shift in alignment both for the United States as well as other major states’ militaries but as the study has shown, this is pertinent given that unconventional warfare and forces will most likely remain the primary threat that states and militaries will now faceDissertation (MSS)--University of Pretoria, 2010.
Political Sciences
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Gazzurelli, Jean-Loup. "Trajectoires contemporaines du textile dans les Basses-Pyrénées. Contribution à l'histoire de l'industrialisation de la France du Sud-Ouest." Thesis, Pau, 2017. http://www.theses.fr/2017PAUU1042.
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Ce travail s’inscrit dans une tendance historiographique récente visant à mieux comprendre la « vocation industrielle (…) beaucoup trop souvent sous-estimée » du Sud-Ouest de la France. Il tente pour cela de reconstituer les trajectoires des activités textiles à l’œuvre dans le département des Basses-Pyrénées au cours de la période contemporaine, à partir de l'étude des entreprises et de leur environnement, des statistiques et discours sur l'industrialisation, et des « cycles de vie » des articles fabriqués et commercialisés. L’étude met d’une part en évidence l’importance, la structuration et la diversité des activités textiles : les Basses-Pyrénées se caractérisent en effet par la grande variété des fabrications, en renouvellement constant (tissage, bonneterie, confection), et s’imposent même comme le principal espace de production de certains articles à la diffusion internationale (bérets, linge basque, lainages des Pyrénées, sandales). Elles présentent en parallèle des filières complètes, parfois uniques dans le Sud-Ouest, pour différentes matières premières (coton, lin, laine, jute).D’autre part, le maintien sur la longue durée des organisations productives diffuses, le recours massif à l’énergie hydraulique et la domination de la petite entreprise familiale s’articulent avec l’adoption souvent rapide des innovations techniques et une forte capacité de reconversion de multiples centres industriels ruraux ou urbains.Enfin, bien que limitée par la concurrence des grandes régions industrielles françaises vis-à-vis desquelles elles peuvent apparaître comme périphériques, les trajectoires textiles des Basses-Pyrénées parviennent à s’inscrire dans différentes échelles, du local à l’international. Elles témoignent d’échanges techniques et l’élargissement du capitalisme familial s’inscrivent dans des logiques endogènes et exogènes. L’exploitation des opportunités régionales joue à ce titre un rôle prépondérant : proximité de l’Espagne, cohérence vestimentaire d’une vaste aire pyrénéenne, extension des débouchés par l’émigration et la demande touristique, exploitation de l’aura régionaliste du Béarn, du Pays Basque et des Pyrénées. La position excentrée des Basses-Pyrénées, tout en étant une source de marginalisation économique, est un facteur de dynamisme industriel certes limité mais solidement inscrit dans la longue duréeThis study comes within the scope of a recent historiographical trend to change perception of the industrialisation of the South-West of France which is often approached from the perspective of underdevelopment . It aims at reconstructing the « paths » of different textile industries in the Basses-Pyrénées / Pyrénées-Atlantiques from late 18th century to late 20th century, based on the study of produce, markets, producting organisations, firms, views and representations. The research points out the importance, structuring and the diversity of textile industries : complete industrial processes can be found in Basses-Pyrénées for several fibres (cotton, linen, wool, jute) and some products are produced and sold by millions (berets, sandals and, to a leaser extent, basque linen, wool of the Pyrénées...). The maintain of “soft” producting organisations, the massive use of hydraulic power and the domination of family businesses are also linked with fast technical changes and strong ability of industrial reconversion inside various industrial countries and small or middle-sized towns.In the end, these industrial “paths” reveal the economical integration of Basses-Pyrénées on different scales, from local to international, as regards raw material, markets or technical, or financial and human movements. The exploitation of regional opportunities plays a major role in the continuity of these textile industries : proximity of Spain, continuing consumption in the pyrenean area, emigration to America, tourism, regionalistic vogue for Bearn, Basque Country and Pyrénées
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Edwards, Sarah. "Investigating the role of a novel ER molecular chaperone : Creld2 in the physiology and pathophysiology of endochondral bone growth." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/investigating-the-role-of-a-novel-er-molecular-chaperone-creld2-in-the-physiology-and-pathophysiology-of-endochondral-bone-growth(6fd49909-beec-42d1-a546-8b2411616e59).html.
Full textAbstract:
Cysteine rich with EGF-like domains 2 (Creld2) is a novel endoplasmic reticulum (ER) resident molecular chaperone that has been recently implicated in the ER stress signalling response (ERSS) and the unfolded protein response (UPR). Global transcriptomic data derived from in vivo mouse models of rare chondrodysplasias; Multiple Epiphyseal Dysplasia (MED Matn3 p.V194D) and Metaphyseal chondrodysplasia type Schmid (MCDS Col10a1 p.N617K), identified a significant upregulation in Creld2 expression in mutant chondrocytes. These chondrodysplasias share a common disease signature consisting of aberrant folding of a matrix component often as a result of inappropriate alignment of intramolecular disulphide bonds. This in turn culminates in toxic protein aggregation, intracellular retention mutant polypeptides and a classical ER stress response. The aim of this study was to further analyse the function of Creld2 in cartilage development and chondrodysplasias in which endochondral bone growth is perturbed. Protein disulphide isomerases (PDIAs) were amongst the most up-regulated genes in the MED and MCDS mouse models, consistent with the prolonged exposure of normally 'buried' cysteine residues. This led to the hypothesis that Creld2 was functioning as a novel PDI-like oxidoreductase to assist in the correct folding and maturation of aggregated misfolded polypeptide chains through REDOX regulated thiol disulphide exchange. A series of Creld2-CXXA substrate trapping mutants were generated in order to determine whether Creld2 possessed inherent isomerase activity. Here potential substrates interacting with Creld2 were 'trapped' as mixed disulphide intermediates, then isolated by immunoprecipitation and identified by mass spectrometry analysis. It was demonstrated that Creld2 possessed a catalytic active CXXC motif in its N-terminus that enabled the molecular chaperone to participate in REDOX regulated thiol disulphide exchange with at least 20 potential substrates including; laminin (alpha3,β3,γ2), thrombospondin 1, integrin alpha3 and type VI collagen. There was also numerous co-chaperones and foldases thought to be part of a specialised protein-protein interactome (PPI) for folding nascent polypeptides translocating the ER lumen. Moreover, co-immunoprecipitation experiments supported a protein-protein interaction between Creld2 and mutant matrilin-3, thereby inferring a potential chondro-protective role in resolving non-native disulphide bonded aggregates in MED. An established biochemical approach was employed to test the hypothesis that all MATN3-MED disease causing mutations have a generic cellular response to the β-sheet V194D mutation, consisting of intracellular retention, protein aggregation and ER stress induction. Several missense mutations were selected for analyses which encompassed a spectrum of disease severity and included examples of both β-sheet and alpha helical mutations. It was possible to define a reliable and reproducible assay for categorising MATN3 missense mutations into pathological or benign based on these basic parameters. This study was extended further to determine whether there were common pathological mechanisms behind MED and Bethlem myopathy (BM) caused by missense mutations in von Willebrand Factor A domain (vWF-A) containing proteins (matrilin-3 and type VI collagen respectively). We chose to compare and contrast the effects of an archetypal MATN3-MED causing mutation (R121W) with the equivalent COL6A2-BM causing mutation (R876H). These mutations compromised protein folding and maturation, resulting in the familiar disease profile of intracellular retention, protein aggregation and an ER stress response in an artificial overexpression system. However, the mutant C2 domain was efficiently targeted for degradation whilst mutant matrilin-3 vWF-A domain appeared to be resistant to these molecular processes.Molecular genetics was employed to study the role of Creld2 in vivo. Creld2-/- null mice (both global and conditional) were generated to directly examine the role of Creld2 in endochondral bone growth. Global knock-out mice were viable with no overt phenotype at birth. However, female Creld2-/- null mice showed a significant reduction in body weight and tibia bone length at 3 weeks of age. A cartilage specific knock-out was generated to determine whether these skeletal abnormalities were attributed to a systemic or a direct effect on cartilage development. [Creld2Flox/Flox Col2Cre (+)] demonstrated a severe chondrodysplasia with significantly reduced body weight and long bone growth compared to control littermates. Morphological and histochemical analysis of mutant growth plates revealed gross disorganisation of the chondrocyte columns with extensive regions of hypocellularity. These pathological features were confirmed to be the result of reduced chondrocyte proliferation and increased/spatially dysregulated apoptosis throughout all zones of differentiation. Taken together, these data provide evidence that Creld2 possesses isomerase activity and exhibits distinct substrate specificity. Furthermore, Creld2 has a fundamental role in post-natal cartilage development and chondrocyte differentiation in the growth plate.