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1
Folschweiller, Cécile. "Les prémisses philosophiques du discours : des intellectuels roumains aux temps de la construction de la nation (1866-1919)." Paris, INALCO, 2009. http://www.theses.fr/2009INAL0009.
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La Roumanie de la deuxième moitié du 19e siècle est marquée par le processus de construction nationale. Celui-ci ne va pas sans bouleversements et remises en question qui atteignent les fondements de la conscience identitaire au moment même où elle semble s'être incarnée dans un Etat moderne. La philosophie se trouve alors naturellement propice à la formulation de ce questionnement radical, existentiel, sur la réalité et les destinées de la nation. Le groupe de jeunes intellectuels, Junimea, qui s'empare du problème, formule une critique profonde de la manière dont le modèle occidental libéral a servi en 1848 et après à bâtir la nation roumaine. Ce modèle culturel et politique importé n'est que "formes sans fond", inadaptées aux réalités locales. Mais la critique des Junimistes mobilise, paradoxalement, des arguments, thèses et concepts issus de la pensée occidentale qui les a formés eux aussi. Et la recherche du "fond" qui se fait jour derrière la critique s'inspire des philosophies de Kant, Schopenhauer, J. S. Mill ou Spencer, combine des traits du romantisme et du rationalisme, de l'idéalisme et du matérialisme, de l'évolutionnisme et des sciences de l'époque. La critique de Maiorescu, les articles politiques d'Eminescu, la métaphysique matérialiste et évolutionniste de Conta, la philosophie de l'histoire de Xenopol, le système du "personnalisme énergétique" de Rădulescu Motru, sont autant de voies pour repenser la nation et la place de l'homme dans une modernité déjà en crise dans l'Europe de la fin du XIXe siècle. Le discours politique, culturel et national des Roumains est nourri de prémisses qui forment aussi celles de l'école philosophique roumaineIn the second half of the XIXth century, Romania was in the throes of nation building. This process was not without its upheavals and questionings, which struck the foundations of national consciousness just when it seemed embodied in the modern State. Philosophy then became the natural medium for the expression of this radical and existential questioning about reality and the future of the nation. Junimea was the group of young intellectuals which took on the problem and replied with a deep criticism of the way in which the Western liberal model had been used in 1848 and later to build the Romanian nation. This imported cultural and political model was mere "form without content" and was not adapted to the local realities. But the Junimists' criticism paradoxically used arguments, theories and concepts from the very Western thought movements that had helped shape them. The search for "content" which appeared beneath the criticism was inspired by the philosophy of Kant, Schopenhauer, J. S. Mill and Spencer, and combined traits of romanticism and rationalism, idealism and materialism, evolutionism and the sciences of the time. Maiorescu's criticism, Eminescu's political articles, Conta's materialistic and evolutionist metaphysics, Xenopol's philosophy of history, Rădulescu-Motru's system of "energetic personalism", all these were different ways of rethinking the concept of nation and man's place in a modernity which was already in crisis in late XIXth century Europe. The premisses of the political, cultural and national discourse of the Romanian thinkers would also be those of the Romanian philosophical school of thought
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Koskimäki, K. (Kasperi). "Huippunopeiden junien kehitys." Bachelor's thesis, University of Oulu, 2018. http://urn.fi/URN:NBN:fi:oulu-201808242672.
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Tämän kandidaatintyön tavoitteena on tehdä kirjallisuuskatsaus huippunopeiden junien kehitykseen. Työssä pyritään muodostamaan kattava ja tiivis kuvaus huippunopeiden junien historiasta, kehityksestä ja merkityksestä käyttäen hyväksi aiempia julkaisuja. Aiheen laajuuden vuoksi sitä on rajattu, eikä kaikkia aiheen alueita ei myöskään käsitellä yhtä kattavasti. Työn tarkoituksena on, että lukijalle jäisi lukemisen jälkeen yleinen ja kohtuullisen perusteellinen käsitys huippunopeiden junien kehityksestäThe aim of this bachelor’s thesis is to make a literature review of the development of high-speed trains. The purpose of the thesis is to provide a comprehensive, but concise description of the history, development and significance of high-speed trains using previous publications on the subject. Due to the scope of the subject, it is limited. Also, all areas of the topic are not covered as comprehensively. The purpose of the work was to provide to the reader a general and reasonably-perceived understanding of the development of high-speed trains
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Jonsson, William, and Zowj Ayda Khabbazi. "Efterfrågad kompetens hos juniora ekonomer : En studie beträffande arbetsgivarens syn på kompetens hos juniora ekonomer." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-70797.
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Inledning: Vilka icke-kvalificerande kompetenser prioriteras av arbetsgivaren, när de kvalificerande kompetenser är uppfyllda, vem får jobbet? Är det den sökande med bäst referenser, bäst betyg eller är det en kombination av flera faktorer? Det är frågor arbetssökande ofta ställer sig när de ska på en arbetsintervju. Att arbetssökande överöses i många tips utan någon källa kopplad till studie är ett problem för den arbetssökande anser vi. Därför vill juniora ekonomer som söker jobb veta vad som prioriteras av arbetsgivaren, vad som är viktigast enligt dem. Syfte: Syftet är att ur ett företagsekonomiskt perspektiv undersöka och förklara arbetsgivarens urval av kandidater till jobb riktade mot juniora ekonomer, när den kvalificerande kompetensen är uppfyllda. Studien syftar även till att ge indikationer på vilken eller vilka icke kvalificerande kompetenser som är av betydelse hos arbetsgivare där merparten av juniora ekonomer har sin första anställning. Studien skall öka den befintliga kunskapen angående rekryteringskvalifikationer utifrån arbetsgivarens perspektiv. Studien kommer att besvara det praktiska behovet för juniora ekonomer som uppfyller kraven för den kvalificerande kompetensen i arbeten de söker. Studien skall hjälpa juniora ekonomer i valet av vad som skall prioriteras vid sidan av studierna för att göra dem extraordinära på arbetsmarknaden. Målet är att studien skall underlätta för juniora ekonomer att finna evidensbaserade fakta angående råd vid arbetssökning. Metod: För att kunna skapa oss en djupare förståelse användes en kvalitativ metod där rekryteringsansvariga intervjuades för att vi skulle kunna uppfylla studiens syfte. Studien inkluderar även en kvantitativ del där platsannonser analyserades för att finna frekvensen av akademisk examen som en kvalificerande kompetens. Slutsats: Vår slutsats indikerar att arbetsgivare ser motivation, vilja och driv som de viktigaste icke kvalificerande kompetenserna. De icke kvalificerande kompetenserna har en biroll i rekryteringsprocessens första två delar. I den sista delen där urvalet sker får de dock den stor roll. Nyckelord: Rekryteringsprocess, juniora ekonomer, kvalificerande kompetens, icke kvalificerande kompetens.
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Jahromi, Hossein. "Hydrodeoxygenation of Pinyon-Juniper Catalytic Pyrolysis Oil." DigitalCommons@USU, 2019. https://digitalcommons.usu.edu/etd/7422.
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Catalytic hydrodeoxygenation (HDO), is an effective process to convert oxygenated compounds to hydrocarbons. This process is widely used for improving the negative properties of biomass-derived pyrolysis oils (bio-oils) such as high acidity, poor stability, and low heating value. During this process oxygen is removed from the bio-oil in the form of water, thus the liquid product of HDO process consists of aqueous phase and hydrocarbon phase that can be easily separated. Synthesis of efficient HDO catalyst has been a major challenge in the field of bio-oil upgrading. Red mud, which is an alkaline waste from alumina industry was used to develop a new red mud-supported nickel catalyst (Ni/RM) for the HDO of pinyon-juniper catalytic pyrolysis oil. The new catalyst was more effective than the commercial Ni/silica-alumina catalyst for the HDO of organic phase pyrolysis oil, the aqueous phase pyrolysis oil, and bio-oil model compounds. Less hydrogen was consumed in the case of Ni/RM and more liquid hydrocarbon yield was obtained compared to the commercial catalyst. In addition to HDO reactions, the Ni/RM catalyst catalyzed ketonization and carbonyl alkylation reactions that was important to produce liquid hydrocarbon from low molecular weight oxygenated compounds. Unlike the commercial catalyst, Ni/RM was regenerable by burning off the deposited coke and activation by reduction using hydrogen.
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Juniper, Kelly Cherie. "A theoretical approach to understanding the physical activity behavior of African American college women." Oklahoma City : [s.n.], 2002. http://library.ouhsc.edu/epub/theses/Juniper-Kelly-Cherie.pdf.
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Vaitkevičiūtė, Rasa. "Common juniper (Juniperuscommunis L.) ecology peculiarities in Lithuania." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2013~D_20140123_092504-35676.
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Relevance of the problem. Common juniper (Juniperus communis L.) is a characteristic underbrush plant of the dry and infertile forest ecosystems. Under favorable conditions, mostly on exposed slopes, common juniper comprises unique juniper communities. The species occupies a large range, is characterized by ecological plasticity and a large variety of populations (Adams, 2008). In many areas of the range it is an important element of the ecosystem, characterized by a large variety of forms. However, the prevalence of junipers and their ecological importance is often dealt with episodically, and on a wider scale - only in the British Isles (Plantlife, 2007, Thomas, 2007) and in some regions of Russia (Барзут, 2007; Михеева, 2002). Despite the large range, common juniper remains one of the least explored coniferous species.
According to the Lithuanian National forest inventory data, common juniper is the most widespread in the south-southeastern Lithuanian pine forests on infertile (Nb) forest sites of normal humidity. Nb site occupies more than one fifth of the Lithuanian forest area, while about 94% of stands on this site type occupy pine stands where common juniper is the most common plant in the underbrush (State Forest Service, 2009). Juniper communities formed in the underbrush under intense forest management conditions generally suffer from economic activity, particularly due to final forest felling, when the largest and most valuable individuals are often damaged or... [to full text]Paprastasis kadagys (Juniperus communis L.) yra charakteringas sausesnių ir mažiau derlingų miško ekosistemų trako augalas. Esant palankioms sąlygoms dažniausiai atviruo-se šlaituose paprastasis kadagys sudaro unikalias kadagynų bendrijas. Rūšis užima didelį arealą, pasižymi ekologiniu plastiškumu ir didele populiacijų įvairove (Adams, 2008). Daugelyje arealo sričių jis yra svarbus ekosistemos elementas, kuriam būdinga formų įvai-rovė. Tačiau kadagių paplitimas bei jų ekologinė svarba dažniausiai nagrinėjami epizodiš-kai, o plačiau – tik Britų salose (Plantlife, 2007; Thomas, 2007) ir kai kuriuose Rusijos re-gionuose (Барзут, 2007; Михеева, 2002). Nors arealas ir didelis, paprastasis kadagys vis dar yra viena iš mažiausiai ištirtų spygliuočių rūšių. Remiantis Lietuvos Nacionalinės miškų inventorizacijos duomenimis, paprastasis kadagys yra labiausiai paplitęs Pietų-Pietryčių Lietuvos pušynuose normalaus drėgnumo nederlingose (Nb) miško augavietėse. Nb augavietė užima daugiau nei penktadalį Lietuvos miškų ploto, o apie 94 % šios augavietės medynų sudaro pušynai, kuriuose paprastasis ka-dagys yra dažnai aptinkamas trako augalas (Valstybinė miškų tarnyba, 2009). Intensyvaus miškų ūkio sąlygomis medynų trake susiformavusios kadagių bendrijos paprastai nukenčia nuo ūkinės veiklos, ypač nuo pagrindinių miško kirtimų. Jų metu dažnai pažeidžiami arba sunaikinami vertingi stambiausi kadagių individai. Be to, pasikeičia šviesos ir temperatū-ros sąlygos bei hidrologinis režimas, todėl... [toliau žr. visą tekstą]
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Mattern, David Ellis 1957. "Hydrologic simulation of pinyon-juniper woodlands in Arizona." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/277116.
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A physically-based, user friendly, hydrologic computer simulation model was developed for pinyon-juniper woodland watersheds. The data requirements are minimum, requiring vegetation conditions, basic soil survey information, and daily values for precipitation and temperature. The model predicts runoff from cleared and uncleared watersheds by simulating hydrologic processes on a daily basis. The model was tested with data from small pinyon-juniper watersheds in central Arizona. A crack-forming vertisol was the dominant soil type, and a special feature for addressing its effects on runoff was included. No significant difference between predicted and observed annual runoff was found at the ninety-five percent confidence level.
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Yathavan, Bhuvanesh Kumar. "Conventional and Catalytic Pyrolysis of Pinyon Juniper Biomass." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/2053.
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Pinyon and juniper are invasive woody species which has occupied more than 47 million acres of land in Western United States. Pinyon juniper woodlands domination decreases the herbaceous vegetation, increase bare lands which in turn increases soil erosion and nutrition loss. Thus, The US Bureau of Land Management (BLM) has focused on harvesting these woody species to make room for herbaceous vegetation. The major application of harvested pinyon-juniper (PJ) is low value firewood. Thus, there is a need to develop new high value products from this woody biomass to reduce the cost of harvesting. In this study pyrolysis was carried out to investigate the feasibility of converting pinyon juniper biomass to value added products. The first part of the study was focused on biomass characterization, and effect of biomass type on product yields. The second part focuses on optimization of process parameters on product yields. The third part focuses on catalytic pyrolysis for improving the quality of bio-oil. In this study it has been shown that pinyon juniper biomass could be effectively used as biomass in fast pyrolysis and red mud, an industrial waste could be used as catalyst in catalytic pyrolysis to improve the quality of the bio-oil.
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Söllvander, Johan, and Denny Höglund. "En brandväggslösning för TwigNETs datacenter med Juniper SRX." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-31803.
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Privatpersoner och företag hyr i allt större utsträckning molntjänster snarare än att själva driva ett datacenter. Kunder som använder molntjänster förväntar sig att dessa alltid är tillgängliga och säkra i ett datacenters händer. För att möta kunders förväntningar designas dagens datacenter med hög tillgänglighet, skalbarhet och säkerhet. Dagens datacenter designas utifrån hierarkiska trädtopologier med redundanta enheter och protokoll, vilket möjliggör både hög tillgänglighet och skalbarhet. Säkerheten uppnås via flera delar såsom brandväggar, spam- och DoS-skydd samt med ständigt uppdaterade enheter. Företaget TwigNET var i behov av en förnyad brandväggslösning och omstrukturering av sitt datacenter. Med målsättningen att ta fram den bästa brandväggslösningen för företaget så analyserades den befintliga brandväggslösningen i kombination med hur trafiken flödar till och från datacentret.Analysen användes som grund för att ta fram en ny lösning som designades för att kunna användas samtidigt som företagets befintliga lösning. I den gamla lösningen så delade alla servrar på en broadcast-domän. Den nya brandväggslösningen designades till att dela in varje server-kategori i en egen broadcast-domän, subnätverk och zon. Företagets redan etablerade policy för internetkommunikation återanvändes på de nya zonerna, men anpassades även för filtrering mellan dessa. Teknikerna chassis cluster, LACP och vPC användes för att uppnå hög tillgänglighet för brandväggarna utan att behöva använda active/active. När den nya brandväggslösningen var färdigställd så jämfördes Juniper SRX mot Cisco ASA för att belysa likheter och skillnader.
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Greer, Courtney Hale. "Hydrologic impacts of mechanical shearing of Ashe juniper in Coryell County, Texas." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4381.
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Several studies have been conducted to research the effectiveness of
brush removal on hydrologic properties such as increased water yields and water
quality. The Leon River Restoration Project (LRRP) is a large scale brush
management program aimed at assessing the impacts of the mechanical
removal of Ashe juniper (Juniperus ashei) on the quantity and quality of water, as
well as wildlife habitat and livestock forage production.
The objectives of this particular study are to assess the short and long
term impacts of mechanical rangeland management techniques on runoff water
yield and sediment loss from rainfall simulator plots. Two ecological sites were
used to conduct rainfall simulation in 3 stages. Rainfall simulations were
completed on Redland and Low Stony Hill sites in June 2003 prior to treatment,
July 2003 after Ashe juniper was sheared from treated areas of both sites and 11
months after treatment in June 2004.
Infiltration rates on both the Redland and Low Stony Hill sites increased
after juniper was removed except for the treated brush plots on the Redland site,
which experienced a 33% decrease. During the third simulation, infiltration rates decreased on all plots. Grass and litter biomass, as well as bare ground were
influential on both sites. Percent bare ground affected infiltration rates the most
on the Redland site where bare ground on the treated brush site was 23% in July
2003 and 42% in June 2004. The grass plots on the Low Stony Hill site had the
greatest percentages of bare ground during the second simulation.
Very few significant differences were apparent with sediment production
on the Low Stony Hill site; however, the treated brush plots on the Redland site
did experience a significant increase in soil loss following treatment. Sediment
production increased from 24.6 kg/ha to 1,730 kg/ha in one month on the treated
brush site. All other plots on the Redland site decreased in sediment discharge.
Sediment production also had minor increases on the grass plots and treated
brush of the Low Stony Hill. Once again, standing crop and bare ground seemed
to have the greatest influence on sediment production.
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Wansch, Aaron. "Junia : Comfort in milk expression." Thesis, Umeå universitet, Designhögskolan vid Umeå universitet, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-125894.
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This report describes the project background, design process plus the final result of my MFA degree thesis in Advanced Product Design at Umeå Institute of Design. A breast pump is generally a mechanical or electrical suction device for withdrawing milk from the breast of a lactating woman. Even though the first pumps were patented in the mid-19th century as medical devices for in-hospital use, breast pumps as widely available consumer products have only been around for a little more than 20 years. Existing breast pumps do not address functional as well as emotional needs of many mothers and there is great potential for improvements and innovative solutions to transform pumping into a more enjoyable and positively associated experience. The main purpose of this project is to rethink the way breast pumps are currently used in order to push the boundaries, and come up with a forward-looking, conceptual design solution as a final result. This human-centered design project was carried out in close collaboration with various experts in the areas of pediatrics, breastfeeding and lactation counselling. Moreover this project was done in cooperation with leading design and innovation consulting firm IDEO. San Francisco basted design director Thomas Overthun provided mentoring throughout the design process. Regular check-in calls and feedback sessions were set up throughout the project to discuss project milestones. Anders Smith, an experienced industrial designer from Denmark, closely followed throughout the project as an external design tutor at Umeå Institute of Design. Several tutoring sessions were held on a regular basis. Continuous involvement of experts and external project advisors helped to make sure that the project remains valid and provided a great source for relevant insights, expert knowledge and professional feedback. "Being able to develop an impactful and forward-looking design solution that can encourage positive change both on an individual and societal level has been my main motivation to tackle this design challenge".
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Wigdor, Yakov. "Applicability of selected sediment transport equations to pinyon-juniper woodlands." Thesis, The University of Arizona, 1994. http://hdl.handle.net/10150/144672.
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Data from 3 pinyon-juniper watersheds, located on the Beaver Creek watersheds in central-northern Arizona, were used to test the applicability of several sediment discharge formulas. Measured sediment concentrations and flow discharges, together with other measured and derived data were used for the computations of the sediment discharge formulas. The predicted transport rates differed significantly from the measured values. The relative best predictions were given by the total load formulas. This was a reasonable result regarding that about 85% of the actual sediments were transported as suspended loads. It was concluded that the performance of the prediction formulas depend largely on the availability of the sediment in the streams. The best predictions were obtained for the watershed with the highest sediment discharges. Stream flow carrying capacity in the range of light-weight material shouldn't be predicted with bed load formulas based and calibrated within a different range of particle size distribution. A correction procedure was applied to adjust the predictions of the sediment formulas compared to the measured values.
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Lopes, Vicente L., Peter F. Ffolliott, Gerald J. Gottfried, and Malchus B. Jr Baker. "Sediment Rating Curves for Pinyon-Juniper Watersheds in Northern Arizona." Arizona-Nevada Academy of Science, 1996. http://hdl.handle.net/10150/297001.
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Young, Kert R. "Plant Establishment and Soil Microenvironments in Utah Juniper Masticated Woodlands." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3318.
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Juniper (Juniperus spp.) encroachment into sagebrush (Artemisia spp.) and bunchgrass communities has reduced understory plant cover and allowed juniper trees to dominate millions of hectares of semiarid rangelands. Trees are mechanically masticated or shredded to decrease wildfire potential and increase desirable understory plant cover. When trees are masticated after a major increase in tree population density and associated decrease in perennial understory cover, there is a risk that invasive annual grasses will dominate because they are highly responsive to the increased resource availability that commonly follows removal of the main resource user. To determine if tree mastication increases resource availability and subsequently favors invasive annual or perennial grasses, we compared soil temperature, water, and nutrient microenvironmental conditions and seedling establishment and growth. We used the major rangeland weed, cheatgrass (Bromus tectorum L.), to represent invasive annual grasses and Anatone bluebunch wheatgrass (Pseudoroegneria spicata (Pursh) A. Löve), a natural accession of native bluebunch wheatgrass, to represent the perennial grasses of the sagebrush-bunchgrass plant community. These comparisons were made between and within paired-adjacent masticated and untreated areas at three locations in Utah dominated by Utah juniper (Juniperus osteosperma (Torr.) Little). Juniper tree mastication generally increased resource availability with masticated areas having greater soil temperature, soil water availability, and soil N supply rates than untreated areas. Prior to juniper tree mastication litter mounds were not found to be resource islands probably because juniper trees themselves were using subcanopy soil water and nutrients. After juniper tree mastication and elimination of these predominant resource users, litter mounds served as resource islands with greater soil water availability and N supply rates than bare interspaces during the critical time for seedling establishment in spring. Plant growth followed in line with greater resource availability after tree mastication with masticated areas having more productive although fewer invasive-annual and perennial grass seedlings than untreated areas. These results suggest that increases in resource availability and warmer spring temperatures associated with mastication will not necessarily favor invasive annual over perennial grass seedling establishment. Resilience of the sagebrush-bunchgrass community to return to dominance after juniper control will likely be greatly influenced by how much of the sagebrush-bunchgrass community remains following tree control and the intensity of propagule pressure by invasive species. If only invasive annuals remain when the trees are treated then invasive annuals would be expected to dominate the post-treatment plant community especially with their ability to establish inside litter mounds unless they were also controlled and perennial grasses planted at the time of treatment.
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Roundy, Darrell B. "Estimating Pinyon and Juniper Cover Across Utah Using NAIP Imagery." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5575.
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Expansion of Pinus L. (pinyon) and Juniperus L. (juniper) (P-J) trees into sagebrush (Artemisia L.) steppe communities can lead to negative effects on hydrology, loss of wildlife habitat, and a decrease in desirable understory vegetation. Tree reduction treatments are often implemented to mitigate these negative effects. In order to prioritize and effectively plan these treatments, rapid, accurate, and inexpensive methods are needed to estimate tree canopy cover at the landscape scale. We used object based image analysis (OBIA) software (Feature AnalystTM for ArcMap 10.1®, ENVI Feature Extraction®, and Trimble eCognition Developer 8.2®) to extract tree canopy cover using NAIP (National Agricultural Imagery Program) imagery. We then compared our extractions with ground measured tree canopy cover (crown diameter and line point) on 309 subplots across 44 sites in Utah. Extraction methods did not consistently over- or under-estimate ground measured P-J canopy cover except where tree cover was > 45%. Estimates of tree canopy cover using OBIA techniques were strongly correlated with estimates using the crown diameter method (r = 0.93 for ENVI, 0.91 for Feature Analyst, and 0.92 for eCognition). Tree cover estimates using OBIA techniques had lower correlations with tree cover measurements using the line-point method (r = 0.85 for ENVI, 0.83 for Feature Analyst, and 0.83 for eCognition). Results from this study suggest that OBIA techniques may be used to extract P-J tree canopy cover accurately and inexpensively. All software packages accurately evaluated accurately extracted P-J canopy cover from NAIP imagery when imagery was not blurred and when P-J cover was not mixed with Amelanchier alnifolia (Utah serviceberry) and Quercus gambelii (Gambel's oak), which are shrubs with similar spectral values as P-J.
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Padgett, Christopher M. "The Life and Mariology of Father Juniper B. Carol, O.F.M." IMRI - Marian Library / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=udmarian1582553304538469.
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Blue, Christina R. "Stratigraphic Architecture and Paleogeography of the Juniata Formation, Central Appalachians." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/31683.
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Late Ordovician (Cincinnatian) strata of the central Appalachians provide an opportunity to study the effects of both tectonics and eustasy within a foreland-basin setting. The Juniata Formation consists of red sandstones, siltstones, and shales that were deposited as part of an extensive siliciclastic basin-fill that resulted from the Taconic Orogeny. This study attempts to resolve some of the questions regarding tectonic and eustatic influences on sedimentation by (1) reconstructing the paleogeographic environment of the Juniata Formation and (2) examining the stratigraphic architecture of the Juniata Formation. A combination of both outcrop and subsurface data was analyzed.Seven facies were identified in this study, including: (1) â proto-vertisolsâ , (2) red shale/mudstone, (3) siltstone/silty mudstone with interbedded sandstones, (4) quartz arenite and sublithic arenite, (5) argillaceous sandstone, (6) hummocky-bedded sandstones and siltstones, and (7) lithic sandstones and conglomerates. These facies are grouped into four facies associations (Aâ D), which are interpreted to be deposited from the inner shelf to the upper shoreface. Isopach and paleocurrent data suggest the shoreline was oriented NEâ SW and detrital sediment was dispersed west and southwest across the basin.
Tectonics controlled the 2nd-Order basin-fill pattern, and these patterns vary along the strike of the basin. Eustatic changes are expressed in two 3rd-Order sequences that were identified in the formation, and possibly in the 4th-Order (?) cycles of Facies Association A. The Ordovicianâ Silurian boundary is expressed as an unconformity throughout the study area, and along-strike variations in the structural setting of the basin were important in its development.
Master of Science
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Blue, Christina Renee. "Stratigraphic Architecture and Paleogeography of the Juniata Formation, Central Appalachians." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/31683.
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Late Ordovician (Cincinnatian) strata of the central Appalachians provide an opportunity to study the effects of both tectonics and eustasy within a foreland-basin setting. The Juniata Formation consists of red sandstones, siltstones, and shales that were deposited as part of an extensive siliciclastic basin-fill that resulted from the Taconic Orogeny. This study attempts to resolve some of the questions regarding tectonic and eustatic influences on sedimentation by (1) reconstructing the paleogeographic environment of the Juniata Formation and (2) examining the stratigraphic architecture of the Juniata Formation. A combination of both outcrop and subsurface data was analyzed.Seven facies were identified in this study, including: (1) â proto-vertisolsâ , (2) red shale/mudstone, (3) siltstone/silty mudstone with interbedded sandstones, (4) quartz arenite and sublithic arenite, (5) argillaceous sandstone, (6) hummocky-bedded sandstones and siltstones, and (7) lithic sandstones and conglomerates. These facies are grouped into four facies associations (Aâ D), which are interpreted to be deposited from the inner shelf to the upper shoreface. Isopach and paleocurrent data suggest the shoreline was oriented NEâ SW and detrital sediment was dispersed west and southwest across the basin.
Tectonics controlled the 2nd-Order basin-fill pattern, and these patterns vary along the strike of the basin. Eustatic changes are expressed in two 3rd-Order sequences that were identified in the formation, and possibly in the 4th-Order (?) cycles of Facies Association A. The Ordovicianâ Silurian boundary is expressed as an unconformity throughout the study area, and along-strike variations in the structural setting of the basin were important in its development.
Master of Science
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Van, Liew Dustin Bruce. "Economic feasibility and risk of using prescribed extreme fire as an invasive brush management tool in Texas." Thesis, [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1405.
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Pollisco, Roy Roberto Arnoco. "Characterization of the overlap area between encinal and pinyon-juniper woodlands." Diss., The University of Arizona, 1995. http://hdl.handle.net/10150/187344.
Full textAbstract:
Overlap areas between encinal and pinyon-juniper woodlands on three mountain ranges in southeastern Arizona were studied in terms of selected physiographic (slope, aspect, soil coarse fragments, and soil pH) and vegetative (overstory number of stems, basal area, volume; regeneration counts and stocking) variables. Overlap areas, defined arbitrarily in this study, were those areas where oak and pinyon-juniper types mix in space, but, basal area per acre of one species group must not have equaled nor exceeded 80 percent of the total basal area recorded at the area. The purpose of the study was to find and describe factors and relationships that might account for the occurrences of overlap areas. Findings of the study might be used by natural resource managers to better understand and manage these important woodlands, including the overlap area. Slope and aspect, although not critical factors in the occurrence of overlap areas, must be carefully considered before harvesting trees on warm and steep sites because juniper is known to have higher tolerance for xeric conditions than oak. Hence, tree harvesting operations in overlap areas located on warm, steep slopes might induce the dominance of pinyon-juniper over oak in the area. Overlap areas were stonier at the soil surface than encinal and pinyon-juniper types. If a field manager wanted an overlap area to re-establish itself after tree harvesting operations, then he must look for overlap areas with stony to very stony soil surfaces. Basal area and volume of oak in overlap areas appeared to dominate over those of pinyon-juniper at some study areas. Oak trees apparently were more mature and established than pinyon-juniper trees in the overlap areas. The smaller and perhaps younger pinyon-juniper trees might indicate recent occupation of the area. It should be noted, however, that data from which this inference was based upon involved no long-term tree measurements. Regeneration of oak generally was more abundant than that of pinyon-juniper in the overlap area. If sheer numbers of plantlets or stocking would indicate eventual establishment and dominance of a species in the overlap area at a given time, then oaks might dominate over pinyon-juniper in time.
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Gentilcore, Dominic M. "Response of Pinyon-juniper woodlands to fire, chaining, and hand thinning." Thesis, University of Nevada, Reno, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1591350.
Full textAbstract:
Pinyon-juniper (Pinus monophylla – Juniperus osteosperma) woodlands have expanded and infilled over the last 150 years to cover more than 40 million ha in the Great Basin. Many land managers seek to remove Pinyon-juniper trees using a variety of treatments. This thesis looks at six different Pinyon-juniper removal projects in Central and Eastern Nevada. We established a total of 73 vegetation and soil monitoring plots (38 treated, 35 adjacent untreated) across six Pinyon-juniper removal projects in Central and Eastern Nevada to look at the effects of fire, hand thinning, and chaining. The four burns examined together in Chapter 1 had similar elevation, precipitation, and pre-treatment vegetation communities in the untreated areas, but the treated areas had significantly different responses to treatment. With nonmetric multidimensional scaling (NMS), we found a useful 3-axis ordination of the plots (stress=7.1, R2=.966). Within ordination space, the treated plots were well grouped by parent material. These results informed a Poisson generalized linear model that found parent material factorized explained 86.5% of the deviance in cheatgrass (Bromus tectorum) cover at the treated plots. The projects on soils derived from welded tuff had very little cheatgrass while soils derived from limestone or mixed limestone/volcanics were dominated by cheatgrass. Parent material should be considered an important factor when planning Pinyon-juniper removal treatments. Chapter 2 examined the effects of a hand thinning. The hand thinning significantly reduced tree cover [F(1,10) = 7.43, p = 0.027] to less than 2%. Perennial grasses on the site are slightly higher in the treated area. There was a significant increase in perennial grass cover from 2013 to 2014 [F(1,10) = 14.5, p = 0.003]. The hand thinning did not have significant effects on shrubs, annual grasses, annual forbs, perennial forbs, ground cover, stability, species richness, diversity, infiltration, or gap structure. Because hand thinning does not remove the shrubs or other perennials, site resistance can be maintained. With sufficient understory vegetation to maintain resistance post treatment (as in phase I or early phase II Pinyon-juniper woodlands), nonnative annual grasses are less likely to dominate after treatment. Chapter 3 examined the effects of a chaining. The effects of the 40-year old chaining are still significant even though Pinyon-juniper trees are reinvading and make up >5% of the cover in the treated area. The treated areas still have a much more productive understory than adjacent untreated areas. Perennial grass cover, frequency, and density was 2-5 times greater in the chained area. The treated area had fewer large gaps (>100 cm). However, interspace infiltration times were slower in the treatment (t(4)=-2.14, p=0.09). Surface and subsurface soil aggregate stability remained significantly lower in the treatment for vegetation-protected and unprotected samples (t(4)=3.53, p=0.024; t(4)=3.10, p=0.036). Chainings have long-term benefits for vegetation, but also long term impacts on soils and hydrologic ecosystem processes. When planning Pinyon-juniper removal treatments, land managers should consider the plant community, temperature and precipitation regime, and soils at the potential treatment location to better achieve desired outcomes.
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Bybee, Jordan Ann. "Understory Vegetation Response to Mechanical Mastication of Piñon and Juniper Woodlands." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3817.
Full textAbstract:
Piñon and juniper encroachment and infilling can alter ecosystem processes and decrease resilience and resistance in sagebrush grasslands. Land managers employ a variety of techniques to eliminate these trees and mitigate their negative effects. Mechanical mastication or shredding is an increasingly popular method of removing these trees in Utah. It is a versatile treatment that can reduce canopy fuels, increase infiltration, and reduced sediment loss. We compared vegetation cover for annual and perennial vegetation functional groups on shredded and adjacent unshredded areas across a range of sites. Our approach was to categorize sites by ecological site type (encroachment or tree) and subplots by treatment (untreated, shredded, and shredded-seeded) and initial tree cover. Mixed model analysis of covariance and the Tukey-Kramer test were used to determine significant differences among ecological site type and treatment combinations for each 5% increment of untreated or initial tree cover. Shrub cover was unaffected by treatment and decreased with increasing tree cover. In general, perennial herbaceous understory cover increased after shredding to equal or exceed initial encroachment and infilling levels. This held true for both ecological site types and treatments, even at high pretreatment tree cover percentages. Cheatgrass also increased in cover after tree shredding although this trend was dampened in the seeded treatments indicating some suppression of cheatgrass by seeding. Shredding when there is high cover of perennial herbaceous plants and shrubs or seeding in conjunction with shredding where initial tree cover exceeds 35-40% will help discourage dominance by weeds.
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Shakespear, Alan Wyatt. "Fuel Response to Mechanical Mastication of Pinyon-Juniper Woodlands in Utah." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/4317.
Full textAbstract:
Pinyon-juniper woodland encroachment threatens ecosystem function and diversity on sagebrush steppe. Decreased fire frequency likely favors proliferation of pinyon-juniper woodlands and subsequent decline in desirable understory species. Increased tree cover produces hazardous canopy fuel loads that contribute to severe crown fires and threaten life and property at the wildland-urban-interface. Mechanical mastication converts large canopy fuels into small woody debris, altering wildfire dynamics from a potential crown fire to a more controllable surface fire. We measured fuel loading and cover on untreated, masticated, and masticated + burned treatments on 30-m transects within 30 X 33-m subplots, representing 45 different sites throughout Utah. All variables were analyzed using mixed-model analysis of covariance with untreated or pretreatment tree cover as the covariate. Shredding trees reduced large-diameter fuels to primarily 10-hour fuels (6.4-25.4 mm diameter). Reduced fuel sizes, fuel redistribution, and fuelbed compactness resulting from mastication treatments can aid wildfire suppression. Masticated + burned treatments effectively reduced woody surface fuel loading to that of pretreatment conditions. Prescribed burning could be used outside the growing season in cool-weather, high-moisture conditions to remove surface fuels, mitigating lethal soil heating and plant mortality. Shrub loading was not adversely affected by mastication treatments, but was significantly reduced with masticated + burned treatments. Masticated and masticated + burned treatments significantly increased herbaceous fuel loading. Treating at lower tree cover values reduced fuel buildup, and provided more opportunity for a positive herbaceous response. Fuel loading estimates measured in this study were provided to populate fire behavior models for mastication treatments on our study sites when such models become available.
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Mari, Ana Claudia Cabral. "Lodo de esgoto como substrato para o chrysanthemum junier." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/154331.
Full textAbstract:
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
O crisântemo é comumente utilizado em decoração devido à sua variedade de cores e durabilidade de inflorescência. Como todas as plantas de vasos, é necessária a utilização de substrato para sua produção, material o qual apresenta muitas vezes elevado custo, pesquisas apontam a possibilidade de utilização de lodo de esgoto como parte deste substrato. Concomitantemente à crescente urbanização que tem como uma das consequências o aumento do volume de lodo de esgoto e outros resíduos, para reduzir os impactos ambientais, vários estudos estão sendo feitos visando à destinação adequada destes resíduos. Uma das saídas verificadas se dá pela aplicação deste resíduo em plantas, porém, com isso, surgem novas problemáticas, uma delas a dosagem. A proposta da presente tese é a utilização do lodo de esgoto como substrato para a espécie Chrysanthemum Junier, visando à determinação da melhor dose para certas características agronômicas. O delineamento experimental foi em blocos casualizados e esquema fatorial (2x4x4) e em adição nula e apenas lodo, ou seja, dois períodos, 4 tratamentos, sendo: T1: Solo + lodo; T2: areia + lodo; T3: solo + casca de pinus + lodo; T4: solo + areia + lodo, em 4 diferentes doses, sendo estas doses de 20%, 40%, 60%, 80% (do peso do vaso) de lodo no substrato, além de TN: tratamento nulo (sem adição de lodo) e T5 (apenas lodo). O experimento foi conduzido em ambiente protegido, na fazenda experimental do Lageado, pertencente à Faculdade de Ciências Agronômicas da UNESP no Campus de Botucatu/ SP. O sistema de irrigação utilizado foi o gotejamento sem adição de nutrientes. As técnicas estatísticas utilizadas foram: análise descritiva dos dados e de variância, análise de regressão, teste de Tukey e Teste T. Foi possível verificar que as doses 60% e 80% de lodo de esgoto compostado proporcionaram resultados significativos no número de botões.
Chrysanthemum is commonly used as decoration due to its variety of colors and durability of inflorescence. As all potted plats, it is necessary to use substrate for their production, which is often expensive, so, research suggests the possibility of using sewage sludge as part of this substrate. Concomitantly, with the increasing urbanization that has as one of the consequences the increase of the volume of sewage sludge and other residues, in order to reduce the environmental impacts, several studies are being elaborated aiming the proper destination of this waste. One of the verified possibility is the application of this residue in plants, however, with this, new problems arise, one of them the dosage. The present thesis proposes the use of sewage sludge as a substrate for the Chrysanthemum Junier species, in order to determine the best dose for certain agronomic characteristics. The experimental design was in a randomized complete block and factorial scheme (2x4x4) and in null addition in only sludge, that is, two periods, 5 treatments, being: T1: Soil + sludge; T2: sand + sludge; T3: soil + pine bark + sludge; T4: soil + sand + sludge in 4 different doses, these doses being 20%, 40%, 60%, 80% (vessel weight) of sludge in the substrate, with a TN: null treatment (without addition of sludge) and a T5 (only sludge) addition. The experiment was conducted in a protected environment, at the experimental farm of Lageado, belonging to the Faculty of Agronomic Sciences of UNESP at Campus of Botucatu / SP. The irrigation system adopted was the drip without adding nutrients. The statistical techniques used were: descriptive analysis of data and variance, regression analysis, Tukey test and T test. It was possible to verify that the 60% and 80% doses of composted sewage sludge provided significant results in the number of buds.
1491336
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Mari, Ana Claudia Cabral 1989. "Lodo de esgoto como substrato para o chrysanthemum junier /." Botucatu, 2018. http://hdl.handle.net/11449/154331.
Full textAbstract:
Orientador: Hélio Grassi FilhoBanca: Maria Helena Moraes Spinelli
Banca: Glauber José de Castro Gava
Banca: Paulo Milton Barbosa Landim
Banca: Aline Azevedo Nazario
Resumo: O crisântemo é comumente utilizado em decoração devido à sua variedade de cores e durabilidade de inflorescência. Como todas as plantas de vasos, é necessária a utilização de substrato para sua produção, material o qual apresenta muitas vezes elevado custo, pesquisas apontam a possibilidade de utilização de lodo de esgoto como parte deste substrato. Concomitantemente à crescente urbanização que tem como uma das consequências o aumento do volume de lodo de esgoto e outros resíduos, para reduzir os impactos ambientais, vários estudos estão sendo feitos visando à destinação adequada destes resíduos. Uma das saídas verificadas se dá pela aplicação deste resíduo em plantas, porém, com isso, surgem novas problemáticas, uma delas a dosagem. A proposta da presente tese é a utilização do lodo de esgoto como substrato para a espécie Chrysanthemum Junier, visando à determinação da melhor dose para certas características agronômicas. O delineamento experimental foi em blocos casualizados e esquema fatorial (2x4x4) e em adição nula e apenas lodo, ou seja, dois períodos, 4 tratamentos, sendo: T1: Solo + lodo; T2: areia + lodo; T3: solo + casca de pinus + lodo; T4: solo + areia + lodo, em 4 diferentes doses, sendo estas doses de 20%, 40%, 60%, 80% (do peso do vaso) de lodo no substrato, além de TN: tratamento nulo (sem adição de lodo) e T5 (apenas lodo). O experimento foi conduzido em ambiente protegido, na fazenda experimental do Lageado, pertencente à Faculdade de Ciências Agronômicas da ... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Chrysanthemum is commonly used as decoration due to its variety of colors and durability of inflorescence. As all potted plats, it is necessary to use substrate for their production, which is often expensive, so, research suggests the possibility of using sewage sludge as part of this substrate. Concomitantly, with the increasing urbanization that has as one of the consequences the increase of the volume of sewage sludge and other residues, in order to reduce the environmental impacts, several studies are being elaborated aiming the proper destination of this waste. One of the verified possibility is the application of this residue in plants, however, with this, new problems arise, one of them the dosage. The present thesis proposes the use of sewage sludge as a substrate for the Chrysanthemum Junier species, in order to determine the best dose for certain agronomic characteristics. The experimental design was in a randomized complete block and factorial scheme (2x4x4) and in null addition in only sludge, that is, two periods, 5 treatments, being: T1: Soil + sludge; T2: sand + sludge; T3: soil + pine bark + sludge; T4: soil + sand + sludge in 4 different doses, these doses being 20%, 40%, 60%, 80% (vessel weight) of sludge in the substrate, with a TN: null treatment (without addition of sludge) and a T5 (only sludge) addition. The experiment was conducted in a protected environment, at the experimental farm of Lageado, belonging to the Faculty of Agronomic Sciences of UNESP at Campus of Botucatu / SP. The irrigation system adopted was the drip without adding nutrients. The statistical techniques used were: descriptive analysis of data and variance, regression analysis, Tukey test and T test. It was possible to verify that the 60% and 80% doses of composted sewage sludge ...
Doutor
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Gregory, Lucas Frank. "Water budgets and cave recharge on juniper rangelands in the Edwards Plateau." Texas A&M University, 2005. http://hdl.handle.net/1969.1/3791.
Full textAbstract:
Increasing demand for water supplies in semi-arid regions, such as San Antonio,
has sparked an interest in potential recharge management through brush control. Two
shallow caves under woody plant cover in northern Bexar County, Texas were chosen as
study sites where a detailed water budget would be developed. The Headquarters Cave
site measures natural rainfall and cave recharge while the Bunny Hole site is
instrumented to measure throughfall, stemflow, surface runoff, and cave recharge. Large
scale rainfall simulation was used at Bunny Hole to apply water directly above the cave
footprint allowing us to determine how recharge differs between natural and simulated
rainfall events. Under natural conditions, Headquarters Cave recharged 15.05% of the
annual rainfall while Bunny Hole received 4.28%. Natural canopy throughfall measured
59.96% of the water budget; stemflow accounted for 0.48% and canopy interception was
39.56%; no surface runoff was measured. Rainfall simulations conducted at Bunny Hole
resulted in an average of 74.5% throughfall, 5.3% stemflow, 20.2% canopy interception,
2.8% surface runoff, and 6.9% cave recharge; simulation intensities were typically
higher than natural event intensities. General water budgets across the Edwards Plateau have concluded that evapotranspiration represents 65% of total annual rainfall while
percolation and storage accounts for 30% and the remaining 5% is runoff. These studies
have been focused on broad water budget parameters while this study looks at more
detailed components. No other study to date has been able to combine throughfall,
stemflow, surface runoff, and vertical recharge monitoring to quantify the water budget
in the Edwards Plateau; these parameters are instrumental in determining a detailed
water budget in juniper rangelands. Results from this study illustrate the significance of
all aspects of the water budget and are the first to yield a firm measurement of actual
upland recharge.
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Cheek, Jonathan W. "Fuel analysis in upper elevation pinyon-juniper woodlands of Lincoln County, Nevada." abstract and full text PDF (UNR users only), 2009. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1472947.
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Bauer, John M. "Fire history and stand structure of a central Nevada pinyon-juniper woodland." abstract and full text PDF (free order & download UNR users only), 2006. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1436023.
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Sullivan, Graham. "Prostrate juniper heath in north-west Scotland : historical, ecological and taxonomic issues." Thesis, University of Aberdeen, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369544.
Full textAbstract:
Prostrate juniper heath (H15 Calluna vulgaris-Juniperus communis subspecies nana heath) is of considerable conservation importance. Its infrequent distribution in northwest Scotland is often attributed to historical burning. The intraspecific taxonomy of Juniperus communis L (Cupressaceae) is unclear. This thesis seeks to understand the history and current status of the community, and to clarify the taxonomy of juniper in Scotland. The impact of current levels of land use on extant HI5 was found to be low. A study of the environmental conditions associated with HI5 revealed that the community was absent from large areas of north-west Scotland with suitable conditions. Other communities with only infrequent juniper exist in many such areas. Sites with environmental conditions suitable for HI5 were investigated using palaeoecological methods. Fire had occurred in both HI5and non-H15 sites, but there was a prolonged recent absence in HI5. A study of annual growth rings showed juniper in HI5 to be twice as old as in other communities, emphasising the lack of recent disturbance. Evidence of greater past juniper cover was not found on non-H15 sites. It is argued that the history of prostrate juniper heath is more dynamic and complex than previously believed. Comparative morphological, genetic marker, and reciprocal transplant studies of juniper populations showed that Juniperus communis ssp. nana is characterised by genotypic prostrateness, imbricate leaf arrangement, and abrupt leaf tips. It is argued that the conservation importance of HI5 and juniper are increased by the findings of this study. Implications for conservation practice, and future research, are considered.
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Jensen, Tobias. "Vem behöver stödet mest? : En jämförelsestudie mellan juniora och seniora HR-konsulter." Thesis, Umeå universitet, Sociologiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-163924.
Full textAbstract:
Det nuvarande systematiska arbetsmiljöarbetet innefattar fler områden än tidigare, bland annat uppmärksammar allt fler arbetsmiljöföreskrifter numera den psykosociala arbetsmiljön i större grad. Det finns mycket forskning som menar att det är korrelationen mellan den psykosociala hälsan hos arbetstagare och arbetsmiljön. Om arbetsmiljön är ogynnsam ökar risken för ohälsa hos arbetstagaren. Arbetsmiljöföreskriften om organisatorisk och social arbetsmiljö, AFS 2015:4, presenterar det krav arbetsgivaren har för att se till att det finns tillräckliga resurser i arbetet för arbetstagarna. Detta för att arbetstagarna ska kunna hantera de krav som arbetet kräver. Denna studie är en fallstudie där juniora rekryterande konsulter och seniora rekryterande konsulter jämförs för att se om det finns några indikationer över vilka som kan tänkas behöva ha mer stöd och resurser. Tidigare forskning visar att det är två faktorer som kan öka möjligheten att hantera sin nuvarande arbetssituation och att minska risken för ohälsa från arbetslivet. Genom intervjuer med juniora och seniora rekryterande konsulter från samma företag inom rekryterings- och bemanningsbranschen har deras upplevda möjlighet till att påverka sin arbetssituation studerats. Då konsulterna jobbar främst ute hos olika kundföretag och sällan är tillsammans med arbetsgruppen under veckorna, jämförs möjligheterna till socialt stöd av kollegor. Det finns inte forskning i större utsträckning som studerar hur anställningstid korrelerar med psykosocial hälsa. Utifrån tidigare forskning inom arbetsmiljö i ett generellt perspektiv och arbetsmiljön för konsulter, tillsammans med forskning inom psykosocial hälsa så bekräftas till viss del denna studies resultat. Det har upptäckts en indikation över vilka som kan behöva mer resurser då de upplever mer krav. Resultatet från denna studie visar att det inte finns några skillnader om konsulterna har samma roll. Juniora rekryterande konsulter som är nära i tid till sin onboardingsprocess och seniora rekryterande konsulter som håller på att byta roll internt upplever större krav i arbetet. Detta kan vara en indikation över vilka som behöver mer resurser för att kunna förebygga ohälsa på grund av sin arbetssituation. Avslutningsvis presenteras förslag för vidare forskning inom detta område.
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Baldwin, Benjamin D. "Catastrophic Wildfire Hazard Assessment in Pinyon-Juniper Woodlands Utilizing a Managerial Paradigm." DigitalCommons@USU, 2003. https://digitalcommons.usu.edu/etd/7270.
Full textAbstract:
The impetus for this research was the increasing threat of catastrophic wildfires resulting from the accumulation of fuels across the West. Guided by the priorities, goals, and guiding principles outlined by the national fire plan (NFP), the objective was to identify those areas within a pinyon-juniper woodland-dominated landscape with the highest hazard of catastrophic wildfire. The intent was to help managers prioritize proactive fuels management efforts outside of the wildland urban interface (WUI). Based on a management paradigm, constraints were placed on the data collection, analysis, and model development. A geographic information system (GIS) was used to create a hazard assessment at a landscape scale in Tintic Valley, Utah. Hazard categories were a classification of fuels based on crown cover of pinyon-juniper trees, utilizing remotely sensed data. The data set consisted of digital orthophoto quadrangle (DOQ) images from 1993. The methods were developed in three phases. Phase One resulted in a hazard assessment protocol. In Phase Two, data layers were created to further divide the hazard categories into more tractable management units. Phase Three, through the retrospective examination of recent wildfires, indicated the limitations and utility of the assessment technique. The protocol presented provides a relatively fast, inexpensive, and timely hazard classification technique for pinyon-juniper woodlands at a watershed level. It is intended to be used for coarse-scale assessments of fuel hazards for strategic planning purposes. While not appropriate for fire behavior predictions, this assessment can focus managerial efforts for additional tactical planning.
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Madsen, Matthew David. "Measurement of Fine Spatial Scale Ecohydrologic Gradients in a Pinyon-Juniper Ecosystem." DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/24.
Full textAbstract:
With the dramatic expansion of pinyon-juniper woodlands over the last century, improved understanding of how these woodlands modify infiltration properties is needed, in order for land managers to make informed decisions on how to best manage their specific resources. However, current methods for measuring soil infiltration are often limited by low sample sizes and high experimental error, due to constraints associated with remote, non agricultural settings. This thesis first presents a scheme for automating and calibrating two commercially available infiltrometers, which allows collection of a large number of precise unsaturated infiltration measurements in a relatively short period of time. Secondly, a new method to precisely determine saturated hydraulic conductivity from small intact soil cores collected in the field is demonstrated. This method removes bias due to measurement error using a multiple head linear regression approach. Finally, hundreds of fine spatial scale measurements of soil sorptivity, unsaturated hydraulic conductivity, saturated hydraulic conductivity, soil water content, and other soil descriptive measurements along radial line transects extending out from the trunk of juniper (Juniperus osteosperma) and pinyon pine (Pinus edulis) trees. Within the subcanopy of these trees, interactions among litter material, root distributions, and hydrophobic soil significantly influence ecohydrologic properties by limiting and redirecting infiltration below the soil surface. Consequently, hydrophobicity appears to be a mechanism that promotes survival of woody vegetation in arid environments, through decreasing evaporation rates from the soil surface. We further demonstrate how differences in unsaturated infiltration and soil water content between the subcanopy and intercanopy zones are not discrete. Unsaturated infiltration was significantly lower within the subcanopy than in the intercanopy, and increased by eight-fold across a gradient extending outward from near the edge of the canopy to approximately two times the canopy radius. This gradient was not strongly related to soil moisture. In the intercanopy, increasing structural development of biological soil crust cover beyond this gradient was positivity correlated with infiltration capacity. Consequently, these results indicate that the spatial location of the trees should be considered in the assessment and modeling of woody plant and biological soil crust influence on infiltration capacity in a pinyon-juniper ecosystem.
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Condon, Lea A. "Landscape analysis of post-burn succession in a Great Basin pinyon-juniper woodland." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1447617.
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Despain, Del Westover. "Radial Growth Relationships in Utah Juniper (Juniperus Osteosperma) and Pinyon Pine (Pinus Edulis)." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184705.
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The assumption that each latewood ring in trees represents one year of growth was tested for Utah juniper (Juniperus osteosperma) and pinyon pine (Pinus edulis). Ring characteristics and growth rates were evaluated for 72 years of growth following scars of consistent date on all trees sampled. Errors in age and growth rate estimates based on ring counts were evaluated. Potential variation among observers was accounted for. Average error in ring counts was lowest when rings were counted on the fastest-growing portions of each cross-section. Errors for more than 40% of the junipers exceeded 10 percent with about half of the trees with more rings and half with less rings than actual years. Pinyons rarely had more rings than years and only 5% of the trees were missing more than 10% of the 72 annual rings. Percentage errors in growth rate estimates based on ring counts were similar to ring count errors for both species. Assigning junipers to age classes based on ring counts also can lead to error in assumed ages of trees. Assuming that ring count error for each tree for the 72 year period studied approximates potential error over the life of each tree, more than half of junipers older than 250 years would be assigned to the wrong age class when using 50 year age classes. Number of rings in junipers was highly correlated with growth rate. Competition from surrounding trees explained as much as 53% and 40% of the variation in growth rates of junipers and pinyons respectively. Relating growth rates and ring counts to ordinations of stand, site and soil characteristics indicated that trees with relatively fast growth rates or trees with the most rings tended to occur on gentle, north to northeast aspects with relatively better- developed soils. However, stand competition often had an overriding influence on growth. Presence of Koelaria pyramidata in the understory was generally an indicator of relatively favorable growing conditions for junipers. Results suggest the need for more caution in the use of ring counts for estimating ages or growth rates of Utah junipers and pinyons than has generally been used in the past, especially when drawing conclusions about specific individuals.
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Pollisco, Roy Roberto Arnoco 1962. "Management of pinyon-juniper woodlands for the sustained yield of wood and water." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/191940.
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The growing awareness on the importance of pinyon-juniper woodlands has greatly influenced the conduct of this study. The main objectives of this study were to develop stand, basal area, and stock tables, to relate tree growths to patterns of water yield, and to outline forest management strategies for the continuous and sustained production of wood and water. The tree inventory data were gathered using the point-sampling method in 1965 and 1986. Precipitation and runoff data were provided by the U.S. Department of Agriculture Forest Service. It was found that streamflow on the study watersheds had low values compared to commercial forest stands. Occasional extreme precipitation and runoff events adversely affected the watersheds by destroying vegetation and degrading soil characteristics. Based on the findings, it is suggested that single tree selection system is most appropriate for the study area.
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Jamieson, Leia P. "Fire history of a pinyon-juniper/ponderosa pine ecosystem in the Intermountain West." abstract and full text PDF (UNR users only), 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1456404.
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Bajaj, Jaidev Singh, and Hugo Hjelm. "Arbetsrelaterad stress och juniora revisorers psykologiska välbefinnande : En kvantitativ studie inom Big Four." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74468.
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The background of this study derives from the fact that the auditing sector is characterized by excessive workload, psychological ill-health and high staff turnover. Prior research emphasizes the effects on chartered accountants, auditing quality and organizational consequences. The purpose of this study is therefore to examine junior auditor’s individual well-being, hence the research question: What is the relationship between workload, role conflict and role ambiguity together with psychological well-being of junior auditors? Cooper and Marshalls theory of occupational sources of stress is the basis for this study and the research model originates from Jones, Norman and Wier. A survey was sent to 201 junior auditors in Stockholm working within Big Four, furthermore, to answer the research question at hand, hypothesis testing is applied. Results of this study shows that work overload is the most prominent of the examined variables, but psychological ill-health could possibly derive from other non-studied factors. Conclusively, the study shows that junior auditors neither experience role conflict or role ambiguity, and therefore, solely workload has a negative effect on occupational stress and psychological illhealth. Further researchers should conduct a qualitative study in order to gain greater understanding of the individuals, but also to examine whether other variables can affect junior auditors.Bakgrunden till denna studie är att revisionsbranschen präglas av hög arbetsbelastning, psykisk ohälsa och personalomsättning, där tidigare forskning lagt stor vikt vid att undersöka auktoriserade revisorer, revisionskvalitén och organisatoriska konsekvenser. Syftet med denna studie är därmed att lägga fokus på juniora revisorers individuella välbefinnande, och således blir forskningsfrågan: Hur ser sambandet ut mellan arbetsbelastning, rollkonflikt samt rolltvetydighet och juniora revisorers psykologiska välbefinnande? Teorin som ligger till grund för detta arbete är Cooper och Marshalls teori om källor till arbetsrelaterad stress, och forskningsmodellen som används i denna studie är en modifiering av Jones, Norman och Wiers. En enkät skickades ut till 201 juniora revisorer inom Big Four och 60 svar erhölls, för att kunna besvara forskningsfrågan tillämpades hypotesprövningar. Resultatet visar att arbetsbelastning är den mest betydande av de undersökta variablerna, dock kan försämrat psykologiskt välbefinnande även föranledas av andra faktorer som inte undersöks i denna studie. Slutsatsen är därmed att juniora revisorer varken upplever rollkonflikt eller rolltvetydighet, och studie har således funnit att endast arbetsbelastning påverkar den arbetsrelaterade stressen och det psykologiska välbefinnandet negativt. Förslag till vidare forskning är att utföra kvalitativa studier för att uppnå en djupare förståelse av individen, men även studera andra faktorer som kan påverka de juniora revisorerna.
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Silva, Juliana Hermenegildo da. "Quadrilha Junina Baba?u: processos folkcomunicacionais, identidade e representa??es culturais." PROGRAMA DE P?S-GRADUA??O EM ESTUDOS DA M?DIA, 2017. https://repositorio.ufrn.br/jspui/handle/123456789/22632.
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Ao longo de todo o s?culo passado os meios de comunica??o avan?aram nas diferentes esferas sociais, florescendo fen?menos diversos. A inser??o das manifesta??es culturais populares no campo midi?tico traz ? tona antagonismos entre tradi??o e modernidade e a constru??o de nossas representa??es identit?rias. Neste estudo problematiza-se a rela??o da visibilidade midi?tica com nossa identidade cultural e regional. Objetiva-se, de modo geral, analisar as representa??es da cultura popular nordestina ao ser colocado como produto midi?tico, econ?mico e tur?stico. Especificamente, demonstramos as pr?ticas sociais e comunicativas que se manifestam nas quadrilhas juninas ao serem introduzidas no cen?rio televisivo. Com a utiliza??o do m?todo etnogr?fico buscamos evidenciar que tais processos s?o mecanismos para a constru??o da identidade cultural da regi?o Nordeste. Nesse sentido questionamos a apropria??o das manifesta??es populares pela m?dia, analisando como os grupos juninos se mant?m dentro de um cen?rio cada vez mais restrito ao consumo e ao espet?culo. Embasados em autores como Marques de Melo, Benjamin, Lima, Chianca e Albuquerque Junior abordamos o cen?rio das festas populares do Nordeste e suas constantes reconfigura??es nos espa?os urbanos e de m?dia.
Throughout the last century the media have advanced in different social spheres, flourishing diverse phenomena. The insertion of popular cultural manifestations in the media field brings to the fore antagonisms between tradition and modernity and the construction of our identity representations. In this study the relationship of media visibility with our cultural and regional identity is problematized. In general, the objective is to analyze the representations of the popular culture of the Northeast when it is placed as a media, economic and tourist product. Specifically, we demonstrate the social and communicative practices that are manifested in the Juninas gangs when they are introduced to the television scene. With the use of the ethnographic method we seek to show that these processes are mechanisms for the construction of the cultural identity of the Northeast region. In this sense, we question the appropriation of the popular manifestations by the media, analyzing how the Junino groups remain within a scenario increasingly restricted to consumption and spectacle. Based on authors such as Marques de Melo, Benjamin, Lima, Chianca and Albuquerque Junior, we approach the scene of popular festivals in the Northeast and their constant reconfigurations in urban and media spaces.
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MARQUES, Priscilla Carla Leite. "Uma festa ideal? Configurações do São João de Arcoverde a partir das relações entre poder público, moradores e visitantes." Universidade Federal de Pernambuco, 2009. https://repositorio.ufpe.br/handle/123456789/1102.
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Previous issue date: 2009A presente pesquisa teve a intenção de compreender a configuração atual dos festejos juninos de Arcoverde, cidade localizada no sertão pernambucano, analisando a participação de seus agentes: poder público, comunidade local e visitantes, em um contexto de aparente crescimento do turismo. As festas podem ser estudadas a partir de diversas abordagens teóricas, aqui se utilizou o debate sobre a relação entre festa e cotidiano, bem como a interface das festas com as operações turísticas que reconfiguram os festejos, levando em conta as demandas de consumidores. Foi realizado trabalho de campo (Junho de 2007 e 2008) em Arcoverde, baseado na observação participante e acompanhado de entrevistas semi-estruturadas com moradores, visitantes e representante do poder público municipal. A etnografia sugere que a festa tem como principal agente para sua realização o poder municipal, mas seus representantes levam em conta as demandas dos moradores da cidade e, simultaneamente, as dos visitantes. Sua configuração resulta num arranjo que segue a estrutura de grandes festas populares públicas (divisão em pólos, temas, decoração, etc.), mas, ao mesmo tempo, tenta contemplar elementos que são definidos por visitantes e moradores como tradicionais, como, por exemplo, o ritmo do coco. Para operacionalizar essas duas orientações distintas, que poderia ser conflitante, a distribuição das atrações em pólos permite harmonizar os grupos (moradores e visitantes), separando-os e ligando-os na medida em que transitam entre estes pólos destinados a atrações especificas. Os sentidos da festa emergem da comparação com as festas de Caruaru e Campina Grande, paradigmáticas para o São João de sucesso no Nordeste, sendo os contrapontos mais importantes: os elementos da cultura local, presentes em Arcoverde e ausentes nas outras cidades, e a quantidade de visitantes, que não é exagerada. De certa forma, o fenômeno do turismo põe em tela a importância da tradição para configurar a festa de Arcoverde, mas, por sua vez, a estruturação da mesma em pólos segue as demandas de consumo
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Smith, Richard Douglas. "Nitrogen dynamics in woody plant ecosystems : almond orchards, winegrape vineyards, and pinyon-juniper woodlands /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.
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Greenwood, David L. "Landscape analysis of tree mortality and Pinyon-Juniper woodland structure in the Great Basin." abstract and full text PDF (free order & download UNR users only), 2006. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1438930.
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Allen, Elizabeth A. "Seed banks of pinyon-juniper woodlands the effects of tree cover and prescribed burn /." abstract and full text PDF (free order & download UNR users only), 2006. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1433416.
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Taucer, Philip Isaiah. "The effects of juniper removal on rainfall partitioning in the Edwards Aquifer region: large-scale rainfall simulation experiments." Texas A&M University, 2003. http://hdl.handle.net/1969.1/3985.
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Two experimental rainfall simulation plots in the Edwards Aquifer region of
Texas were established to measure the effects of brush clearing on surface and
subsurface water movement pathways. Multi-stage rainfall simulations were carried out
at a site with Juniperus ashei (ashe juniper) cover both before and after brush removal,
with three replications of a particular rainfall event for each vegetation condition.
Similar simulations were carried out on a plot with a longstanding grass cover. Both
plots included trenches at their downhill ends for observation of shallow lateral
subsurface flow. Canopy interception was found to represent a major water loss, with
interception of 32.7 mm for an average 166 mm, 5.25 hr rainfall event. Brush clearing
had little impact on surface runoff, with no overland flow occurring at the juniper plot
for either vegetation condition, while 31.9 percent of applied rainfall moved as overland
flow at the grass plot. This difference was attributed to differences in the structure and
permeability of the epikarst. Brush removal caused significant (90 percent confidence
level) reduction in shallow lateral subsurface flow into the trench after brush removal,
with 56.7 percent of water reaching the surface entering the trench for the pre-cut
condition and only 43.4 percent for the post-cut condition. However, subsurface water
movement through other pathways increased from 31.0 to 54.1 percent after brush
removal. This additional water, due to removal of canopy interception, could either
move off-site through conduit and fracture flow or remain on site as storage in conduits,
unconsolidated caliche/marl layers, or in soil pockets.
Two tracer tests with fluorescent dyes were also conducted using simulated rainfall to assess discrete flow paths discharging into the trench at the downhill end of
the juniper plot. Analysis of samples from sixteen outlet locations revealed that not all
areas of the plot were connected hydraulically to the trench. Additionally, subsurface
flow paths were found to have a high degree of interconnection, linking conduit flow
outlets with multiple inlet locations on the plot surface. Conduits showed strong
connection with an area surrounding juniper vegetation, with rapid water flow (up to 2.4
m/h) from this area.
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Cooper, Sheldon J. "The Role of Cold Acclimatization on the Biogeography of the Mountain Chickadee (Parus Gambeli) and the Juniper Titmouse (Parus RIdgway)." DigitalCommons@USU, 1997. https://digitalcommons.usu.edu/etd/4471.
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Biogeographic patterns of animals are shaped by biotic interactions, such as competition, and by abiotic factors, such as climate. Mountain Chickadees (Parus gambeli) and Juniper Titmice (Parus ridgway) are permanent residents of regions of western North America and are ecologically similar, but have different northern range limits. l measured several physiological variables, including basal metabolic rate (BMR), peak metabolic rate (PMR = maximal thermogenic capacity), metabolic response to varying environmental temperature (MRT), evaporative water loss (EWL), and daily energy expenditure (DEE) for summer-and winter-acclimatized Mountain Chickadees and Juniper Titmice to determine if seasonal and interspecific variation in cold tolerance and thermogenic ability shape the northern range distribution of these two species. In addition, I examined the ecological consequences of nocturnal hypothermia and cavity roosting in seasonally acclimatized Mountain Chickadees and Juniper Titmice.
Winter birds tolerated colder test temperatures than summer birds for both species This improved cold tolerance was associated with a significant increase in PMR in winter chickadees (27.1 %) and titmice (114%) compared to summer. BMR was significantly higher in winter birds (16.0%) compared to summer birds for both species. BMR and PMR were significantly higher for chickadees compared to titmice in both summer and winter. Winter chickadees were able to withstand colder test temperatures than winter titmice. The Mountain Chickadee's lower critical temperature is lower than the Juniper Titmouse's in summer and in winter. The Mountain Chickadee's upper critical temperature is also lower than the Juniper Titmouse's and chickadees also had significantly higher evaporative water loss rates compared to titmice. Seasonal acclimatization in Mountain Chickadees involves insulatory as well as metabolic changes. For Juniper Titmice winter acclimatization appears to be primarily a metabolic process. The laboratory metabolism data for activity costs associated with DEE revealed that foraging energy requirements were not significantly higher than alert perching energy requirements. DEE was significantly higher (P<0.05) in winter-acclimatized chickadees and titmice compared to their summer counterparts. The marked increase in calculated DEE in winter birds compared to summer contrasts a pattern of increased DEE in the breeding season for several avian species. The data from this study indicate that the northern range limit of small birds can be limited by energetic and water balance demands.
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Nascimento, Meggie Karoline Silva. "Avaliação da toxicidade dos hidrocarbonetos monoaromáticos BTX no microcrustáceo marinho Mysidopsis juniae." Universidade Federal de Sergipe, 2017. https://ri.ufs.br/handle/riufs/4480.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESThe volatile organic compounds benzene, toluene and xylenes (BTX) are among the most produced chemicals worldwide and can be found in different environmental compartments. Contamination of aquatic environments by these substances may result in to adverse toxic effects on organisms of different biological organizations. The present study aimed to evaluate the toxicity of BTX isolated and in binary mixtures using the acute toxicity test (96h) with the microcrustacean Mysidopsis juniae. To achieve that, organisms were exposed to BTX concentrations in order to identify the effects on survival, as well as to study the modes of action of the substances in mixture with the application of the theoretical models of Addition Concentration (AC) and Independent Action (AI). In the experiments with the isolated compounds it was possible to notice that xylene was the most toxic compound (LC50 16,10 ±2,4mg.L-1) followed by toluene (LC50 38 ± 5,3mg.L-1) and benzene (LC50 78,03 ±2,9mg.L-1) respectively. When in binary mixture deviations of the reference models for CA were observed in all experiments performed (dose ratio and antagonism). In the exposure of xylene and benzene the deviation that fit the results was the antagonism, where as the mixture of xylene and toluene was better explained by the deviation dose ratio where the toxicity was caused mainly by xylene. In the experiment combining toluene and benzene, the dose ratio pattern was observed as well, and the benzene was the main responsible for the toxicity. We concluded that BTX were toxic to mysids, both isolated and in binary mixtures, evidencing the importance of studies in this subject that can serve as support for evaluations and monitoring of the marine environments, considering the imminent risks of contamination of this environment and the wide scale of use of these compounds.
Os compostos orgânicos voláteis benzeno, tolueno e os xilenos (BTX) estão entre os produtos químicos mais produzidos mundialmente e podem ser encontrados em diferentes compartimentos ambientais. A contaminação de ambientes aquáticos por essas substâncias pode acarretar em efeitos tóxicos adversos em organismos de diferentes organizações biológicas. Diante disso, o presente estudo teve como objetivo avaliar a toxicidade dos BTX isolados e em misturas binárias por meio do teste de toxicidade aguda (96h) com o microcrustáceo Mysidopsis juniae. Para isso, os organismos foram expostos às concentrações de BTX a fim de identificar os efeitos na sobrevivência, assim como estudar os modos de ação das substâncias em mistura com a aplicação dos modelos teóricos de concentração de adição (CA) e ação independente (IA). Nos experimentos com os compostos isolados foi possível perceber que o xileno foi o mais tóxico (CL50 16,10±2,4mg.L-1) seguido por tolueno (CL50 38±5,3mg.L-1) e benzeno (CL50 78,03±2,9mg.L-1). Quando em mistura binária foram observados desvios dos modelos de referência para CA em todos os experimentos realizados (razão das doses e antagonismo). Na exposição do xileno e benzeno o desvio que se enquadrou aos resultados foi o antagonismo, já a mistura de xileno e tolueno foi melhor explicada pelo desvio razão das doses onde a toxicidade foi causada principalmente pelo xileno, no experimento com o tolueno e benzeno também foi observado um padrão de razão das doses, sendo que nesse caso o benzeno foi o maior responsável pela toxicidade. Logo, os hidrocarbonetos analisados foram tóxicos para o misidáceo, tanto isolados como em misturas binárias, evidenciando a importância de estudos nessa temática que possam servir de suporte para avaliações e monitoramento dos ambientes marinhos, visto os riscos iminentes de contaminação deste meio e a ampla escala de utilização desses compostos.
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Tchudjin, Magatsin Junie Diane [Verfasser]. "Neutrophile im experimentellen allergischen Asthma / Junie Diane Tchudjin Magatsin." Lübeck : Zentrale Hochschulbibliothek Lübeck, 2015. http://d-nb.info/1079621369/34.
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Bendevis, Mira Arpe. "Comparison of photosynthetic responses of Ashe juniper and live oak on the Edwards Plateau, Texas." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1716.
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Faure, Patrick-Alain. "Histoire de l'Hôpital de Saint-Junien : ou de l'utilisation des sangsues à la coeliochirurgie sous hypnose /." [Saint-Paul] : L. Souny, 2001. http://catalogue.bnf.fr/ark:/12148/cb37684123x.
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Figueirêdo, Lívia Pitombeira de. "Uso de Mysidopsis juniae na análise da toxicidade dos metais zinco e níquel." reponame:Repositório Institucional da UFC, 2013. http://www.repositorio.ufc.br/handle/riufc/14930.
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FIGUEIRÊDO, L. P. de. Uso de Mysidopsis juniae na análise da toxicidade dos metais zinco e níquel. 2013. 82 f. Dissertação (Mestrado em Ciências Marinhas Tropicais) - Instituto de Ciências do Mar, Universidade Federa do Ceará, Fortaleza, 2013.Submitted by Geovane Uchoa (geovane@ufc.br) on 2016-01-25T15:01:43Z No. of bitstreams: 1 2013_dis_lpdefigueiredo.pdf: 1295418 bytes, checksum: 0172dfb6e9252a5d21813552122c725b (MD5)
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Over the years, a range of pollutants has been released into the environment, forming complex mixtures and causing damage to the biota. Metals are among the most common pollutants that have a high toxicity effect. The present study aims to assess nickel and zinc toxicity, isolated and in mixtures, using the marine microcrustacea Mysidopsis juniae as a model. Three different protocols were applied: first the acute toxicity tests of metals isolated and in mixtures (10 organisms per jar with 1-8 days of life, triplicate, 96h, lethality assessed by calculating the LC50); second chronic toxicity tests based on growth (5 organisms per jar with <24 hours of life, quadruplicate, 7 days, length and dry weight were the endpoints); and finally chronic toxicity tests based on fecundity effects (5 organisms per jar with 10 days of life, quadruplicate, 7 days, the number of females with eggs was the endpoint). The mixtures data were analysed according to the conceptual models of Concentration Addition (CA) and Independent Action (IA). The LC50 for zinc and nickel was 0,24 ± 0,02 mg. L-1 and 0,18 ± 0,04 mg. L-1, respectively. The mixtures assays presented acute effect, the additive toxicity to any concentration tested, and the data model best described by CA. The lethality, length and dry weight of M. juniae were affected by chronic exposure to zinc and nickel, exception was the dry weight of nickel exposure that showed no significant difference. The length was the most sensitive endpoint analyzed. On the other hand, the reproductive effects could not be analysed due to the lethality overlapped this parameter in tests. Thus, the metals analyzed presented an additivity pattern which proved to be very sensitive to zinc and nickel, especially when evaluated in the short chronic protocol proposed in this work, which enables the use of the parameters and the specie in future studies.
Ao longo do anos, os mais variados poluentes vem sendo lançados no meio ambiente, isoladamente ou em misturas, causando danos a biota. Dentre os poluentes mais comuns estão os metais, muitos destes com elevada toxicidade. Assim, o presente trabalho teve como objetivo principal determinar a toxicidade dos metais zinco e níquel, isolados e em misturas, utilizando o microcrustáceo marinho Mysidopsis juniae como modelo. Para isso, foram utilizados 3 protocolos distintos: um para avaliar a toxicidade aguda dos metais isolados e em misturas (organismos de 1-8 dias de vida, triplicata, 10 organismo/réplica, 96h de duração e análise da letalidade através do cálculo da concentração letal a 50% dos organismos (CL50); outro para avaliar a toxicidade crônica com base no crescimento (organismos <24 horas de vida, quadruplicata, 5 organismo/réplica, 7 dias de duração e análise do comprimento e peso seco) e, um terceiro, para avaliar a toxicidade crônica com base nos efeitos sobre a fecundidade (organismos 10 dias de vida, quadruplicata, 5 organismo/réplica, 7 dias de duração e análise do número de fêmeas com ovos). Os dados das misturas foram trabalhados segundo os modelos conceituais de Adição da Concentração (CA) e Ação Independente (IA). A CL50 para o zinco e o níquel, isoladamente, foi de 0,24 ± 0,02 mg.L-1 e 0,18 ± 0,04 mg.L-1, respectivamente. Para os experimentos de misturas foi observado efeito na letalidade dos organismos, com toxicidade aditiva para todas as concentrações testadas, sendo os dados melhores descritos pelo modelo CA. A letalidade, o comprimento e o peso seco de M. juniae foram afetados pela exposição crônica ao zinco, enquanto que para o níquel apenas o peso seco não variou significativamente. O comprimento mostrou-se mais sensível do que os outros parâmetros analisados aos metais testados. Os efeitos na reprodução não foram analisados, uma vez que a letalidade se sobrepõe a esse parâmetro. Sendo assim, os metais analisados mostraram um padrão de aditividade em Mysidopsis juniae, que apresentou-se bastante sensível aos metais zinco e níquel, principalmente quando avaliado no protocolo crônico de curta duração, proposto neste trabalho, viabilizando a utilização desses parâmetros e dessa espécie em estudos futuros.
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Sparhubert, Eric. "Les commandes artistiques des chapitres de chanoines séculiers et leurs enjeux : édifier et célébrer à Saint-Junien (XIe-XIIIe siècles)." Poitiers, 2008. http://www.theses.fr/2008POIT5002.
Full textAbstract:
Parmi les études consacrées aux réalisations des différents ordres religieux, rares sont celles à poser la question des ambitions monumentales des chanoines installés hors des capitales diocésaines, en particulier des chanoines séculiers. Cette question est au coeur de la présente étude, qui propose un va-et-vient nécessaire entre monographie et synthèse, et dont le fil conducteur est la rencontre avec un édifice exemplaire : la collégiale limousine de Saint-Junien. Dans un premier temps, la lecture archéologique et la mise en perspective des choix monumentaux ouvrent sur les questions propres aux édifices du XIe siècle et révèlent un chantier particulièrement créatif. Est également étudié le programme symbolique mis en oeuvre par les chanoines centré sur la célébration du passé du lieu et des saints patrons. L'entreprise invite ensuite à examiner ce qui se passe dans les autres collégiales limousines : on s'aperçoit ainsi que les stratégies des chanoines sont partout offensives et dépassent les simples enjeux de la construction de pierre. Enfin, les réaménagements de la collégiales, autour de 1200, sont significatifs des modifications fonctionnelles qui infléchissent partout la commande architecturale. Replacés parmi des chantiers plus lointains, jusqu'à l'Angleterre, ils mettent en lumière les grands mouvements qui devaient tout particulièrement animer l'Eglise des clercs entre les conciles de Latran III et IVAmong the studies devoted to the creations of different religious orders, rare are those to pose the question of the monulental ambitions of canons located outside the main dioceses capitals, particulary secular canons. This question is at the heart of the present study, witch the proposes a necessary coming and going between monograph and synthesis and of witch the main link is the encounter with an exemplary edifice : Saint-Junien. In the first place the archaeological study and the putting in perspective offer a light on the questions proper to edifices of the 11th century, and reveal a particularly creative site. And similarly study the symbolic program elaborated by the canons, centred on the passed celebration and patron saints. The venture, then invites the examination of what is happening in the other Limousin collegiale churches. Finally, the rearrangements of the building around 1200 are signs of functional modifications which generally bend the architectural order. Replaced amongst some of the furthest sites, as far away as England, they portray the great movements which have animated the clerical Church between the Lateran councils III & IV