Academic literature on the topic 'Migration (Technik)'
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Journal articles on the topic "Migration (Technik)"
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Jodłowski, Tomasz, Cezary Płatkowski, and Marek Dobosz. "Biliary stent migration complicated by covered sigmoid perforation in a patient with diverticula – the use of endoscopic technique." Gastroenterology Review 5 (2012): 312–16. http://dx.doi.org/10.5114/pg.2012.32071.
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Aerbajinai, Wulin, Lunhua Liu, Kyung Chin, and Griffin P. Rodgers. "Glia Maturation Factor-Gamma Regulates Macrophage Migration Through Control Recycling of alpha5beta1 Integrin in Endosome." Blood 120, no. 21 (November 16, 2012): 3273. http://dx.doi.org/10.1182/blood.v120.21.3273.3273.
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Abstract Abstract 3273 Macrophages play an essential role in defending against invading pathogens by migrating to the sites of infection, removing apoptotic cells, and secreting inflammatory cytokines. Macrophage migration is a critical step in the regulation of immune response and is also associated with many chronic inflammatory diseases such as rheumatoid arthritis, multiple sclerosis, atherosclerosis and cancer. Thus, understanding the mechanisms controlling macrophage migration within different environments is of paramount importance. Although it is clear that adhesion signaling via integrin receptors and the surrounding ECM play a significant role in regulating migration of macrophages to site of inflammation, the underlying cellular and molecular mechanisms responsible for these process is still not fully characterized. Defining the molecular circuits through which integrins regulate macrophage motility is therefore important for gaining a better understanding of macrophage function. Glia maturation factor gamma (GMFG), a novel ADF/cofilin superfamily protein that is predominantly expressed in inflammatory cells, has been implicated in regulating actin reorganization. We have previously demonstrated that GMFG plays a role in regulating neutrophil chemotaxis and migration. We now examine whether GMFG has similar effects on macrophage and the cellular mechanism for these effects by using small-interfering RNA technic to knockdown GMFG in human macrophage like THP-1cells. Knockdown of endogenous GMFG results in significantly reduced chemotactic migration toward fMLP and enhanced adhesion on fibronectin compared with control siRNA transfected cells. Flow cytometry analysis shows that GMFG-knockdown cells expresses significant amount of α5β1 integrin on the surface compared with control cells. Confocal microscopy analysis exhibited that GMFG was distributed throughout the cytosol and colocalized with the multiple endocytic compartment such as early endosome marker EEA1, Rab5, Rab4 and Rab11. Importantly, we found that most of the α5β1 integrins accumulated in clusters at the rear of the GMFG-knockdown cells, along with colocalization with endosome marker EEA1, rather than localization toward the leading edge in response to fMLP stimulation in control cells. These results suggest that impaired efficient α5β1 integrin recycling cause to increased adhesion, which is responsible for reduced macrophage migration on fibronectin in GMFG depletion macrophages. Accordingly, GMFG is required for proper trafficking of endosomal α5β1 integrin to the plasma membrane and is fundamental for integrin-mediated macrophage motility. Disclosures: No relevant conflicts of interest to declare.
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Chen, Shiyi, Lihong, and Xiliang Shang. "Long Head Biceps Tendon as Superior Capsular Reconstruction (LHBT-SCR) augmentation for Massive rotator cuff repair: “The Chinese Way." Orthopaedic Journal of Sports Medicine 7, no. 11_suppl6 (November 1, 2019): 2325967119S0045. http://dx.doi.org/10.1177/2325967119s00454.
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Massive or irreparable rotator cuff tears remain a challenging with a high failure rates of the tendon re-tear after surgical treatment in sports medicine practice. Superior capsular reconstruction with either fascia lata autograft or a dermal allograft patch has been described to prevent superior humeral head migration and restore the shoulder muscle force couples to achieve the promising results. A modified and simplified surgical procedure using long head biceps tendon (LHBT) autograft as superior capsular reconstruction (LHBT-SCR) to facilitate the massive rotator cuff repair has been descripted as ”Chinese Way” by a team of French surgeons and Chinese surgeons. The surgical technic has been used in China more than 300 cases. The procedure of this LHBT-SCR has been approved with the advantage of least technical demands, simplifies the original demanding, short the surgical time, satisfy the results and patient acceptance. A multi-center prospective studies with large cohort populations and long-term follow-up has been established in China for its effectiveness. The present will introduce the technic in detail.
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Tripa, Laura, Florin Alin Sava, Ramona Paloș, Silvia Măgurean, and Irina Macsinga. "Evaluating the outcomes of "Resilient left-behind children" – A social-emotional learning and mindfulness group counseling program." Cognition, Brain, Behavior. An interdisciplinary journal 25, no. 1 (March 24, 2021): 33–53. http://dx.doi.org/10.24193/cbb.2021.25.03.
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International migration has a powerful impact on both the sending and receiving countries, especially for adults migrating for better working conditions and leaving family members, including children, behind. Increasing numbers of left-behind children in Romania (Save the Children Romania, 2019) require attention and support through specific policies and school-based programs. The purpose of this empirical study is to develop and assess a school-based prevention/intervention group counseling program for left-behind children. The program is based on previous social-emotional learning curricula and it incorporates mindfulness technics (Sibinga, Webb, Ghazarian, & Ellen, 2016). It is designed to increase resilience and self-regulatory abilities in children, thus improving their school adjustment in terms of emotional, social, behavioral and attitudinal outcomes. Using a sample of 62 children, aged 12-15 (M = 12.71, SD = .868), we conducted a quasi-randomized trial with a control and an intervention group to investigate the efficacy of the program. Children in the intervention group reported improved self-regulation and resilience and reduced loneliness and social dissatisfaction. Teachers reported significantly fewer emotional and behavioral difficulties for the children following the intervention. This study emphasizes the role of the evidence-based approach to counseling services in schools, by capitalizing on the latest findings in the field and addressing the specific needs of left-behind children.
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Perez, T., R. Berges, H. Maccario, D. Braguer, and S. Honoré. "P11.06 Non epigenetic effect of vorinostat in glioblastoma cells." Neuro-Oncology 21, Supplement_3 (August 2019): iii43. http://dx.doi.org/10.1093/neuonc/noz126.152.
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Abstract BACKGROUND Glioblastoma multiform (GBM) is the most frequent primitive brain tumor. GBM has a high recurrence and mortality. Histone deacetylase (HDAC) inhibitors have evoked great interest because they are able to change transcriptomic profiles to promote tumor cell death but also show undesirable side effects due to the lack of selectivity.We show new properties of low dose vorinostat, which inhibits cytoplasmic HDAC6 and display interesting non-epigenetics effects, especially on the microtubular cytoskeleton. MATERIAL AND METHODS We used murine (GL261) and human (U87 and GBM6 stem cells) cellular models. The cell proliferation was assessed by MTT tests, the migration by the 24 hours Transwell technic and by wound/healing tests. The expression levels of proteins of interest were assessed by Western Blot. Microtubules dynamics were assessed by time-lapse videomicroscopy. The synergy between drugs was tested by Loewe model. RESULTS Vorinostat inhibited the proliferation and the migration of the three cell lines mentioned above at level below the EC50.Vorinostat induces tubulin acetylation and alpha-tubulin c-terminal detyrosination that signed microtubular stabilization and these effects are independent of histone acetylation (HADC3). Interestingly, vorinostat decreases EB1 expression (a bad prognostic factor in GBM) and decreases microtubule dynamics. Moreover, vorinostat decreases neural markers such as GFAP, beta3-tubulin and CNPase and increases mural markers expression such as SMA/EGFR and PDGFR. Finally, it showed a synergy combined with erlotinib. CONCLUSION Low dose vorinostat, which do not affect histone désacetylase, has antitumor effect on glioblastoma cells by a new mechanism involving microtubule cytoskeleton. Interestingly, combination of low doses vorinostatand erlotinibshowed a strong synergy. Low dose, vorinostat could therefore represent an interesting therapeutic option and fewer side effects and that could be used to increased GBM patient sensitivity to erlotinib.
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Santos, Milton. "Réflexions sur le rôle de la géographie dans la période technico-scientifique." Cahiers de géographie du Québec 32, no. 87 (April 12, 2005): 313–19. http://dx.doi.org/10.7202/021983ar.
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Aujourd'hui, il n'est pas question seulement de milieu technique mais de milieu technico-scientifique. L'utilisation de la nature et les transformations correspondantes sont de plus en plus conditionnées par le savoir, et l'espace lui-même se charge de science et de technologie. Avec la mondialisation et l'unification des techniques, du travail et des capitaux, l'espace est mondialisé et toutes ses fractions sont impliquées par l'internationalisation. Les zones périphériques sont occupées, les sous-espaces deviennent économiquement spécialisés, de nouvelles complémentarités régionales se dessinent: la circulation et l'information sont des données explicatives majeures. Les migrations deviennent plus volumineuses, l'urbanisation concentrée. Le territoire est unifié par le développement des transports et des communications mais il y a désarticulation au niveau des décisions. L'État, le secteur financier et les grandes firmes réalisent l'essentiel des nouvelles régulations mais le rôle des « classes invisibles » dans la structuration de la société et de l'espace est grandissant.
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Akbari Zahmati, Amir Hossein, Reza Alipoor, Arash Rezaei Shahmirzadi, Vahid Khori, and Mohammad Mahdi Abolhasani. "Chemical Decellularization Methods and Its Effects on Extracellular Matrix." Internal Medicine and Medical Investigation Journal 2, no. 3 (September 11, 2017): 76. http://dx.doi.org/10.24200/imminv.v2i3.63.
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Background: Extracellular matrix (ECM) produced by tissue decellularization processes as a biological scaffold due to its unique properties compared to other scaffolds for migration and implantation of stem cells have been used successfully in the field of tissue engineering and regenerative medicine in the last years. The objective of this manuscript was to provide an overview of the chemical decellularization methods, evaluation of decellularized ECM and the potential effect of the chemical decellularization agents on the biochemical composition.Methods: We searched in Google Scholar, PubMed, Scopus, and Science Direct. The literature search was done by using the following keywords: “ECM, biologic scaffold, decellularization, chemical methods, tissue engineering.” We selected articles have been published from 2000 to 2016, and 15 full texts and 97 abstracts were reviewed.Results:Employing an optimization method to minimize damage to the ECM ultrastructure as for a result of the lack of reduction in mechanical properties and also the preservation of essential proteins such as laminin, fibronectin, Glycosaminoglycans (GAGs), growth factor is required. Various methods include chemical, physical and enzymatic technics were studied. However, on each of these methods can have undesirable effects on ECM.Conclusion: It is suggested that instead of the Sodium dodecyl sulfate (SDS) which have high strength degradation, we can use zwitterionic separately or in combination with SDS. Tributyl phosphate (TBP) due to its unique properties can be used in decellularization process.
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Dubravcsik, Zsolt, István Hritz, Attila Szepes, and László Madácsy. "Profilaktikus sztentek alkalmazása az endoszkópos retrográd cholangiopancreatographiát követő pancreatitis megelőzésében." Orvosi Hetilap 162, no. 1 (January 3, 2021): 31–38. http://dx.doi.org/10.1556/650.2021.31934.
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Összefoglaló. Bevezetés: Az endoszkópos retrográd cholangiopancreatographiát (ERCP) követő pancreatitis (PEP) incidenciája a magas kockázatú betegcsoportban 14,7%. Célkitűzés: A munkacsoportunk által szerzett tapasztalatok elemzése. Módszerek: A profilaktikus pancreassztentes (PPS), magas kockázatú betegek adatait tartalmazó prospektív adatbázisunkat elemeztük retrospektív módon. Az adatokat a PEP-incidencia és a súlyosság tekintetében összehasonlítottuk a korábbi, hasonlóan magas kockázatú, sztent nélküli beteganyagunkkal, illetve a sztenteléssel kapcsolatos szövődményeket és a különböző sztenttípusokat is elemeztük. A Cotton-kritériumok szerint értékeltük a PEP-t. Eredmények: A 317, magas kockázatú betegből 288 esetben (90,9%) volt sikeres a PPS-implantáció. A sztent nélküli kontrollcsoportba 121, magas kockázatú beteget választottunk be. A sikeresen sztentelt betegekben a PEP incidenciája 10,0% volt. Ez és a PEP súlyossága (enyhe: 8,3%, középsúlyos: 1,4%, súlyos: 0,3%) is szignifikánsan alacsonyabb volt a PPS nélküli beteganyaghoz (PEP: 31,4%, enyhe: 15,7%, középsúlyos: 10,7%, súlyos: 5,0%) és a sikertelenül sztentelt betegekhez (PEP: 41,3%, enyhe: 24,1%, középsúlyos: 13,8%, súlyos: 3,4%) képest. Az utóbbi két csoport közötti különbség nem volt szignifikáns. A sztenttel kapcsolatos szövődmények közül a leggyakrabban a korai sztentkicsúszást (5/288 beteg, 1,74%) és a proximalis sztentmigrációt (3/288 beteg, 1,04%) észleltük. A sztenttípusok közül a legkedvezőbb mellékhatás-profilúnak a Freeman-típusú, belső füllel és külső „pigtail” véggel ellátott sztenteket találtuk. Következtetés: A profilaktikus pancreassztentelés hatékonyan csökkenti a PEP incidenciáját, és a súlyosságát az enyhébb esetek felé tolja el. Alkalmazása viszonylag egyszerű, azonban ismerni kell használatának megfelelő technikáját, időben történő eltávolításának és a szövődmények felismerésének fontosságát. Eredményeink és a nemzetközi ajánlások alapján magas PEP-rizikójú betegekben a PPS rutinszerű alkalmazása minden ERCP-laborban ajánlott. Orv Hetil. 2021; 162(1): 31–38. Summary. Introduction: The most frequent complication of endoscopic retrograde cholangiopancreatography (ERCP) is post-ERCP pancreatitis (PEP). Its incidence in the high-risk patient population is 14.7%. Objective: To analyze 10 years experiences of our working group. Methods: We retrospectively analyzed our prospective database of high-risk patients treated with prophylactic pancreatic stents (PPS) including the period between 2009 and 2014. We compared PEP incidence and severity findings with our historical data of pre-PPS period of similarly high-risk patients (no-stent group), furthermore analyzed the complications of PPS insertion and different stent types. PEP was defined and categorized according to the Cotton criteria. Results: In 317 high-risk patients, PPS implantation was successful in 288 cases (90.9%). The no-stent group comprised of 121 patients. Incidence and the severity of PEP in the successfully stented group (all: 10.0%; mild: 8.3%, moderate: 1.4%, severe: 0.3%) were significantly lower compared to the no-stent group (all: 31.4%; mild: 15.7%, moderate: 10.7%, severe: 5.0%) and the unsuccessfully stented group (all: 41.3%; mild: 24.1%, moderate: 13.8%, severe: 3.4%). The difference between the latter two groups was not significant. Only early dislodgment (5/288 patients, 1.74%) and proximal migration (3/288 patients, 1.04%) were observed as stent-related complications. Freeman type (single inner flange, outer pigtail end) stent was the best based on the complication profile. Conclusion: Prophylactic pancreatic stenting effectively lowers the incidence and severity of PEP. We should recognize the proper technic of its application and the importance of proper timing of its extraction and identification of complications. Utilization of PPSs in high-risk patients is strongly recommended in every ERCP center. Orv Hetil. 2021; 162(1): 31–38.
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"New technic for 3D prestack migration (in Chinese)." International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts 32, no. 2 (February 1995): A78. http://dx.doi.org/10.1016/0148-9062(95)94688-8.
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"The importance of the use of IPV6 as an internet migration protocol." International Journal of Development Research, June 29, 2020, 36816–21. http://dx.doi.org/10.37118/ijdr.19053.06.2020.
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The article states the need and importance of the migration from IPv4 to IPv6. All the information that this article contains was obtained from bibliographic research in several books and online papers, just as a survey with the people responsible for some companies’ IT Department, in which we were able to attain a thorough analysis about the migration from IPv4 to IPv6. The currently situation of companies’ systems have been unreasonably unstable with Carrier Grade Network Address Translation - CGNAT, a technique used by internet service providers to share IPv4 public addresses inside private network addresses. Some research indicates that a large amount of IT professionals are suitable to use the IPv6 migration system as well as states that there are several resources and technics for implementation of this new system, however there has to be caution while using dual stacks and tunnels from the more recent system, the IPv6, because some services still are operated by the older system, the IPv4, as long as it continues existing and being used. Nowadays, several internet providers have adopted a new way of using the IPv4 and the IPv6, but the industry lacks business owners or internet managers with the right conscious to obtain the equipment’s that endure the migration to IPv6.
Dissertations / Theses on the topic "Migration (Technik)"
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Kempf, Charlotte. "Die deutschen Erstdrucker im französischsprachigen Raum bis 1500. Untersuchungen zu Materialität und Präsenz von Inkunabeln." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEH181.
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Avec l’introduction d'ateliers à l’université de Paris en 1470 commence l'histoire de l'imprimerie dans l'espace francophone. Un des fondateurs fut l'érudit allemand Johannes Heynlin von Stein. Il marque le début d'un développement durant lequel les imprimeurs allemands furent d'une importance décisive : Jusqu'en 1500, sur 40 villes francophones dans lesquelles nous pouvons attester la présence d’au moins une imprimerie, onze ont été introduites par des Allemands. Ils les ont installées surtout dans le sud-est du royaume de France ainsi que dans le Duché de Bourgogne, le Comté de Bourgogne et dans les régions de la Suisse francophone actuelle. Ce bouleversement important de l'histoire des médias était le sujet de la thèse. À la base d'une méthode sur l'histoire de la matérialité, l'étude montre que les imprimeries devaient être à la croisée de différents développements. L'étude examine les biographies des imprimeurs, présente leurs programmes d’imprimerie, décrit le milieu universitaire, urbain et monastique et épluche les éditions qu’ils ont imprimé. Elle a permis de comprendre la complexité transitionnelle entre l’époque des manuscrits et celle des livres imprimés, des sociétés non-typographiques aux sociétés typographiques. Finalement, l’analyse met en évidence que les premiers imprimeurs allemands furent un groupe communicatif en mouvement ayant un réseau au-delà des frontières qui peut être considéré comme exemplaire pour l’histoire de l'imprimerie en France et et même en Europe. En analysant en détail un groupe important des imprimeurs cette approche présente des nouveaux résultats quant à l'histoire précoce de l'imprimerie française et incite à un dialogue scientifique internationalWith the establishment of a press at University of Paris in 1470, the history of printing presses in the French speaking world began. One of the founders was the German scholar Johannes Heynlin von Stein. He marks the start of a historically significant development in which printers from the Holy Roman Empire are of central importance. In the 15th century, it were in fact German printers who took the initiative to establish printing presses in eleven out of forty French cities. Geographically, those presses were predominantly located in the southeast of the French Kingdom and in the Duchy of Burgundy, in the Palatinate County of Burgundy, as well as in the region of what is today the French-speaking part of Switzerland. This media-historically important transition is the focus of this dissertation. On the basis of a profound methodology rooted in the history of materiality, the thesis shows that printing presses must be understood as an intersection of different developments. A comprehensive examination of the biographies of the respective printers and their printing portfolios are presented. Additionally, this thesis records the university, urban and monastic environment of the presses and critically evaluates the printed editions. By doing so, it is possible to work out in detail – while always referring to the sources – the complexity of the transition from a period of manuscripts to a period of printed books. Hence, a transition from non-typographic to typographic societies. Finally, this thesis proves that the German printers were a communicative and trans-border networked group which exemplarily stands for the French and partly for the European history of the printing press in the 15th century. By precisely and extensively analysing one of the most important groups of printers in the 15th century, this thesis allows for new insights to the history of early French printing presses and therefore seeks to fill a gap in academic literature. Furthermore, it encourages an international and scientific dialogue
Mit der Einrichtung einer Buchdruckerei in der Universität Paris im Jahre 1470 beginnt die Geschichte des Buchdrucks im französischsprachigen Raum. Einer der Gründer war der deutsche Gelehrte Johannes Heynlin von Stein. Er steht am Anfang einer Entwicklung, in der den Druckern aus dem Heiligen Römischen Reich entscheidende Bedeutung zukam - in elf von rund 40 französischen Städten, in denen in der Inkunabelzeit eine Druckerpresse eingerichtet wurde, ging die Initiative von deutschen Druckern aus. Sie waren vor allem im Südosten des Königreichs Frankreich sowie im Herzogtum Burgund, in der Freigrafschaft Burgund und in Gebieten der heutigen französischsprachigen Schweiz präsent. Dieser mediengeschichtlich bedeutsamen Umbruchphase widmet sich die vorliegende Untersuchung. Auf der Basis einer materialitätsgeschichtlich fundierten Methode kann gezeigt werden, dass die Druckereien als Kreuzungspunkte unterschiedlicher Entwicklungslinien verstanden werden müssen. Die Studie untersucht die Biographien der Drucker, stellt ihr Druckprogramm vor, erfasst das universitäre, städtische oder monastische Umfeld der Pressen und wertet die von ihnen produzierten Ausgaben aus. Auf diese Weise kann detailliert, und stets mit Bezug auf die Quellen, die Komplexität des Übergangs vom Handschriften- zum Druckzeitalter, von non-typographischen zu typographischen Gesellschaften herausgearbeitet werden. Darüber hinaus wird nachgewiesen, dass es sich bei den deutschen Erstdruckern um eine kommunikative und über Ländergrenzen hinweg breit vernetzte Gruppe handelt, die als exemplarisch für das französische sowie in Teilen auch für das europäische Druckwesen des 15. Jahrhunderts gelten kann. Dieser Ansatz einer präzisen und umfassenden Auseinandersetzung mit einer bedeutenden Gruppe von Buchdruckern präsentiert neue Erkenntnisse zur Geschichte des frühen französischen Buchdrucks und regt zur Intensivierung des internationalen Forschungsdialogs an
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Chevrier, Benoît. "Les assemblages à pièces bifaciales au Pléistocène inférieur et moyen ancien en Afrique de l’Est et au Proche-Orient : nouvelle approche du phénomène bifacial appliquée aux problématiques de migrations, de diffusion et d’évolution locale." Thesis, Paris 10, 2012. http://www.theses.fr/2012PA100115/document.
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Le modèle « Out of Africa » est profondément ancré dans les réflexions portant sur les peuplements paléolithiques. Pour le Pléistocène inférieur et moyen ancien, plusieurs vagues de dispersion des premiers hominidés à partir de l’Afrique de l’Est sont avancées, en particulier vers le Proche-Orient sur la base de trois sites majeurs : Dmanisi, ‘Ubeidiya et Gesher Benot Ya‘aqov. Cette théorie véhicule également l’idée d’imports répétés de techniques nouvelles, notamment le façonnage bifacial.Cependant, une déconstruction des mécanismes inhérents à ce modèle permet d’identifier des obstacles conceptuels et méthodologiques issus du « paradigme de la flèche », simplifiant et réduisant la complexité des phénomènes techniques et culturels.Afin de réintégrer à la question l’espace et le temps, dont l’absence au sein d’« Out of Africa » est rédhibitoire, nous utilisons une vision évolutive des techniques basée sur des réflexions de philosophie, d’ergonomie et de géographie. Cette vision, reprise par des paléolithiciens depuis une quinzaine d’années, a conduit à concevoir une méthodologie techno-fonctionnelle centrée sur les notions d’outil, de geste et de fonctionnement.Une étude approfondie utilisant cette approche a été menée sur quatre assemblages est-africains et proche-orientaux, complétée par des observations portant sur trois autres collections. Les informations obtenues permettent de discuter des processus d’évolution technique sur le temps long, de proposer une vision alternative des peuplements qui considère en particulier l’idée d’inventions du façonnage bifacial indépendantes, et enfin d’envisager des espaces culturels à différentes échelles de temps et d’espaceThe “Out of Africa” model is deeply rooted in the issues of Paleolithic settlement. For the Lower and Early Middle Pleistocene, several waves of early hominid dispersal from Africa have been proposed, especially to the Near East on the basis of three major sites: Dmanisi, ‘Ubeidiya and Gesher Benot Ya‘aqov. This theory also conveys the idea of repeated imports of new techniques, including bifacial shaping.However, the mechanisms inherent in this model are deconstructed: it allows to identify conceptual and methodological obstacles from the “arrow paradigm”, which simplifies and reduces the complexity of technical and cultural phenomena.The absence of space and time in the “Out of Africa” model is a crippling flaw. To reintroduce these dimensions in the debate, an evolutionary view of technics is used and is inspired by thoughts from philosophy, ergonomics and geography. In Paleolithic prehistory, this point of view, developed over past fifteen years, led to work out a techno-functional methodology focused on notions of tool, gesture and functioning.A detailed study using this approach was conducted on four assemblages from East Africa and Near East, with some supplementary observations on three other collections Then a discussion is offered on various topics: (1) the processes of technical evolution over long time, (2) an alternative vision of settlements, which particularly considers the idea of independent inventions of bifacial shaping, and finally (3) the ability to define cultural spaces on different scales of time and space
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Caux, Solène. "Du territoire d'approvisionnement au territoire culturel : pétroarchéologie et techno-économie du silex Grain de mil durant l’Aurignacien dans le Sud-ouest de la France." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0153/document.
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La caractérisation des matières premières lithiques est un important moyen d’étude des territoires paléolithiques, permettant d’inférer les modes de déplacement et d’organisation des groupes humains. Le Bassin aquitain est une des provinces archéologiques les mieux documentées d’Europe. Pourtant, certains matériaux depuis longtemps reconnus au sein des collections archéologiques, restent mal identifiés (origine géographique, unicité…). C’est en particulier le cas d’un type de silex dénommé « Grain de mil » par les préhistoriens. Pour combler cette lacune, ce travail s’organise en deux temps :- Une étude pétroarchéologique de ce matériau, axée sur sa caractérisation et la détermination de son origine géographique et géologique. Cette première phase du travail a permis de définir le Grain de mil comme un matériau typique de Charente-Maritime puisque sa formation est liée à l’anticlinal de Jonzac. Elle montre aussi que les critères de sa caractérisation, principalement issus de l’analyse des faciès sédimentaires, peuvent être appliqués lors de l’étude pétro-techno-économique d’une collection archéologique.- Une caractérisation techno-économique des modes de gestion de ce matériau à l’Aurignacien ancien et récent dans les sites nord-aquitains. A l’Aurignacien ancien, les groupes circulent à travers l’ensemble du Bassin aquitain au cours de grands déplacements saisonniers ; il semble que l’exploitation du Grain de mil témoigne d’une faible circulation dans le Nord-ouest du Bassin. A l’Aurignacien récent au contraire, les territoires d’approvisionnements ont centrés sur le Nord du Bassin aquitain mais ouverts à l’Ouest voire au Nord ; le Grain de mil serait alors au coeur de larges réseaux de circulation des groupes. Les moteurs d’évolution des sociétés à l’origine de ces changements de stratégie de déplacement sont ensuite discutés, testant pour cela le rôle des facteurs environnementaux et humainsCharacterising lithic raw materials is an important means of studying palaeolithic territories, allowing modes of mobilityand the organisation of human groups to be deduced. The Aquitaine Basin is one of the best-documented archaeologicalregions of Europe. However, certain materials have long been recognised within archaeological collections without theirgeographic origin or even their uniqueness being clearly demonstrated. This is particularly the case with a specific type offlint, which prehistorians call “Grain de mil”. In order to address these shortcomings, this work was carried in two phases:- a cross-disciplinary study of this material, focusing on its petroarchaeological characterisation and its geographicand geological origins. This initial phase of analysis lead to the definition of Grain de mil flint as a material typical ofthe Charente-Maritime as its formation is tied to the Jonzac anticline. It also shows that criteria for itscharacterisation, which stem mainly from the sedimentological analysis, can be applied to the petro-technoeconomicstudy of an archaeological assemblage.- a techno-economic characterisation of the management of this material during the Early and Late Aurignacian,from northern Aquitaine sites. During the Early Aurignacian, groups move seasonally across the Aquitaine Basin;exploitation of Grain de mil flint seems to indicate little circulation in the north-west of the Basin. In contrast, duringthe Late Aurignacian, provisioning territories centre to the north of the Aquitaine Basin, but open to the west andalso to the north. Grain de mil then appears to be at the heart of large-scale networks of circulations. Finally, theunderlying forces driving these strategic changes in mobility patterns are discussed, evaluating the role of bothenvironmental and human factors
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Wang, Kun. "Migration Towards Next Generation Optical Access and Transport Networks." Doctoral thesis, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-206988.
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By 2020 there will be 50 billion connected devices over the Internet. With the fast-increasing data traffic demand in both fixed and mobile networks, network operators need to migrate networks towards next generation solutions. The network migration requires the enormous investment in equipment and infrastructure, while the revenues are not expected to grow significantly. Therefore, one of the main challenges for network operators is to find out a proper cost-effective optical network solution that can match future high capacity demand and flexibly support multiple network services on a common network infrastructure. The first part of the thesis addresses the Active Optical Network (AON) and its migration strategies towards Next Generation Optical Access (NGOA) solutions. Several migration strategies are proposed from the perspective of network topology, data plane and control plane. A general methodology for Techno-Economic analysis has been developed and applied to the Total Cost of Ownership (TCO) calculation of different NGOA solutions. The thesis provides a complete cost evaluation of AON migration paths, which can be used by network operators to assess the economic feasibility of network migration. A converged Optical Transport Network (OTN) that can serve both fixed and mobile network services is beneficial from the cost-saving perspective. However, the different types of services, require different network performance. The second part of the thesis focuses on the investigation of the converged OTN that can be flexibly and timely adjusted to satisfy varying service conditions. A programmable OTN featured with Wavelength Division Multiplexing (WDM) in the data plane and Software Defined Networking (SDN) in control plane has been proposed. To demonstrate the benefits of the converged OTN, the thesis also provides a multi-domain orchestration architecture for the multiple network services. The resource orchestration, across three network domains: OTN, mobile network and cloud, enables agile service creation and optimized resource allocation among the multiple domains.QC 20170512
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Meier, Hans-Bernd. "Vertriebene und Flüchtlinge im ehemaligen Regierungsbezirk Osnabrück 1945-1970: Zuwanderung, Flüchtlingsverwaltung, wirtschaftliche Integration und regionaler Strukturwandel." Doctoral thesis, 2001. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2001062218.
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This study describes and analyses the influence of immigration and integration of German expellees and refugees in the former administrative district of Osnabrueck. It is a contribution to a new regional social and economic history as well as to the history of integration of German refugees after World War II. The main goals are to close the gaps in regional pre and post war history of population, administration and economy. To a certain extent this thesis is of global importance with respect to the history of refugee integration in Germany. It deals with the refugee administration that was in place until the 1970s as well as the methodology of econometric analysis. The latter is used to show the process of modernisation from an agrarian economy to one that is dominated by industry and services. The applied methods are those of narrative history as well as social and econometric statistics on historical long-term analysis. The study describes and analyses the regional history of population, administration and economy, the latter with special respect to history of farming. To show the impact of expellees on social and economic structure, each of the three sections is analysed in a similar way: Chronologically by comparing the history and structures from about 1900 to 1945 with the period after World War II up to the 1970s. Geographically by comparing regional to country and national statistical patterns. It can be shown that the refugee administration suffered from early "ad hoc administration" days until its agony in the 1970s from the dualism with the traditional social administration. At the beginning there was no survival without the support of British military government, which consideres this area as a test field for the influence of new democratic conditions on pre-democratic administrative structures and daily work. In the 1950s the influence of military government was replaced by political power of refugee organisations and party. There decline leads to agony and subsequent take-over by traditional administration in the 1970s. The study shows the role and impact of refugees as part of the labor immigration in between the "Fremdarbeiter" and the "Gastarbeiter" on regional economy. It displays the intersectoral changes by the shifts in figures and index’ of gainfully employed people (domestic and refugees) demonstrating the shift towards an industrial or service oriented economy. From a refugee point of view there was no integration in the sense of equal opportunities in the job market as compared to native Osnabrueckians. This led to a decline in social status, especially for those who had been independent farmers in the east. The "integration" by discrimination and declining social status caused geographical and job mobility especially among the younger refugees – into better paid and modern jobs. Qualified refugee labour sped up the long term process of industrialization. Those sub areas which in pre-war times had been dominated by an agricultural sector on a 19th century level changed to an industrialized or service driven level within 15 years – much faster than during the Industrial Revolution. The study shows also that refugees had been a very successful political vehicle for claiming and getting public economic subsidaries – which mostly reached not the immigrants but native (Emsland-) farmers and companies.
All in all the integration of refugees was a bivalent process of interdependent mutual adaption: On the one hand that of immigrants towards the conditions to live and work in the Osnabrueck area. On the other side the impact of refugees onto speed and direction of post war development and modernization of regional structures.
The general result is that refugee immigration and integration had a major impact on regional post war development and modernisation of an administration with a pre-democratic understanding and an pre-war economy dominated by agriculture.
Books on the topic "Migration (Technik)"
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Badach, Anatol. Voice over IP, die Technik: Grundlagen, Protokolle, Anwendungen, Migration, Sicherheit. 3rd ed. München: Hanser, 2007.
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Lindner, Christoph, and Gerard Sandoval, eds. Aesthetics of Gentrification. NL Amsterdam: Amsterdam University Press, 2021. http://dx.doi.org/10.5117/9789463722032.
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Gentrification is reshaping cities worldwide, resulting in seductive spaces and exclusive communities that aspire to innovation, creativity, sustainability, and technological sophistication. Gentrification is also contributing to growing social-spatial division and urban inequality and precarity. In a time of escalating housing crisis, unaffordable cities, and racial tension, scholars speak of eco-gentrification, techno-gentrification, super-gentrification, and planetary gentrification to describe the different forms and scales of involuntary displacement occurring in vulnerable communities in response to current patterns of development and the hype-driven discourses of the creative city, smart city, millennial city, and sustainable city. In this context, how do contemporary creative practices in art, architecture, and related fields help to produce or resist gentrification? What does gentrification look and feel like in specific sites and communities around the globe, and how is that appearance or feeling implicated in promoting stylized renewal to a privileged public? In what ways do the aesthetics of gentrification express contested conditions of migration and mobility? Addressing these questions, this book examines the relationship between aesthetics and gentrification in contemporary cities from multiple, comparative, global, and transnational perspectives.
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Voice over IP - Die Technik: Grundlagen, Protokolle, Anwendungen, Migration, Sicherheit. Munich. Germany: HANSER, 2010.
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Voice over IP - Die Technik: Grundlagen, Protokolle, Anwendungen, Migration, Sicherheit. Munich Germany: HANSER, 2010.
Find full textBook chapters on the topic "Migration (Technik)"
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Badach, Anatol, and Erwin Hoffmann. "Migration zum IPv6-Einsatz." In Technik der IP-Netze, 525–70. München: Carl Hanser Verlag GmbH & Co. KG, 2019. http://dx.doi.org/10.3139/9783446455115.010.
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Badach, Anatol, and Erwin Hoffmann. "Migration zum IPv6-Einsatz." In Technik der IP-Netze, 421–64. München: Carl Hanser Verlag GmbH & Co. KG, 2015. http://dx.doi.org/10.3139/9783446439863.009.
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"7 Brand-Migration durchführen." In Strategie und Technik der Markenführung, 419–24. Vahlen, 2014. http://dx.doi.org/10.15358/9783800648573_419.
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Harno, Jarmo, K. R. Renjish Kumar, Mikko V. J. Heikkinen, Mario Kind, Thomas Monath, and Dirk Von Hugo. "Service Offerings for Fixed-Mobile Convergence Scenario." In Networking and Telecommunications, 1385–99. IGI Global, 2010. http://dx.doi.org/10.4018/978-1-60566-986-1.ch090.
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This study demonstrates that an integrated operator can benefit from cost savings, customer retention and prevention of revenue erosion by FMC migration strategy with introduction of advanced service packages. This development is driven by increasing importance of mobile network capabilities and services, as well as the lessening gap between fixed and mobile systems, in terms of technological models and prices, resulting in greater market-pull and commercially feasible FMC offerings. FMC is expected to offer benefits for network and service operators as well as businesses and consumers. We have also analyzed the operator’s dilemma in selecting an appropriate migration strategy to exploit the benefits of cost savings and generating new revenues, while exposing oneself to the risk of substitution effects among its fixed and mobile products. The objective in this article has been to provide quantitative comparison of some strategic scenarios utilizing techno-economic case study methodology in modeling an integrated operator business in the Western European context.
Conference papers on the topic "Migration (Technik)"
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Kar, P. K., and S. K. Roy. "TECHMIG: A layout tool for technology migration." In Proceedings Twelfth International Conference on VLSI Design. (Cat. No.PR00013). IEEE, 1999. http://dx.doi.org/10.1109/icvd.1999.745224.
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Tsujii, Koki, Mayuko Otsuki, Tomonari Akamatsu, Ikuo Matsuo, Minoru Kitamura, Takashi Kikuchi, Kazuo Amakasu, Kazushi Miyashita, and Yoko Mitani. "Migration monitoring of fin whales in the southern Chukchi Sea with acoustic methods during 2012–2015." In 2016 Techno-Ocean (Techno-Ocean). IEEE, 2016. http://dx.doi.org/10.1109/techno-ocean.2016.7890746.
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Turk, Stefan, Rico Radeke, and Ralf Lehnert. "Network migration using ant colony optimization." In 2010 9th Conference on Telecommunications Internet and Media Techno-Economics (CTTE). IEEE, 2010. http://dx.doi.org/10.1109/ctte.2010.5557713.
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Leiva, A., A. Beghelli, C. Mas Machuca, R. Olivares, M. Saavedra, and R. Ahumada. "Generic techno-economic evaluation methodology: the case of migration to flexible grid networks." In 2015 Conference of Telecommunication, Media and Internet Techno-Economics (CTTE). IEEE, 2015. http://dx.doi.org/10.1109/ctte.2015.7347232.
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Asai, Saki, Keiichi Uchida, Kazushi Miyashita, Nobuaki Arai, Hiromichi Mitamura, Takashi Kitagawa, Hokuto Shirakawa, Yoshinori Miyamoto, and Toyoki Sasakura. "Study of Remaining and Migration of Skipjack Tuna in Waters Around Yonaguni Island, Okinawa, Japan." In 2018 OCEANS - MTS/IEEE Kobe Techno-Ocean (OTO). IEEE, 2018. http://dx.doi.org/10.1109/oceanskobe.2018.8559300.
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Van der Wee, Marlies, Koen Casier, Kun Wang, Sofie Verbrugge, and Mario Pickavet. "Techno-Economic Evaluation of FTTH Migration for a Network Provider: Comparison of NG-AON and TWDM-PON." In Asia Communications and Photonics Conference. Washington, D.C.: OSA, 2013. http://dx.doi.org/10.1364/acpc.2013.aw3i.3.
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Van der Wee, Marlies, Koen Casier, Kun Wang, Sofie Verbrugge, and Mario Pickavet. "Techno-Economic Evaluation of FTTH Migration for a Network Provider: Comparison of NG-AON and TWDM-PON." In Asia Communications and Photonics Conference. Washington, D.C.: OSA, 2013. http://dx.doi.org/10.1364/acp.2013.aw3i.3.
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Hustad, Carl-W., Inge Trondstad, Roger E. Anderson, Keith L. Pronske, and Fermin Viteri. "Optimization of Thermodynamically Efficient Nominal 40 MW Zero Emission Pilot and Demonstration Power Plant in Norway." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68640.
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In Aug 2004 the Zero Emission Norwegian Gas (ZENG) project team completed Phase-1: Concept and Feasibility Study for a 40 MW Pilot & Demonstration (P&D) Plant, that is proposed will be located at the Energy Park, Risavika, near Stavanger in South Norway during 2008. The power plant cycle is based upon implementation of the natural gas (NG) and oxygen fueled Gas Generator (GG) (1500°F/1500 psi) successfully demonstrated by Clean Energy Systems (CES) Inc. The GG operations was originally tested in Feb 2003 and is currently (Feb 2005) undergoing extensive commissioning at the CES 5MW Kimberlina Test Plant, near Bakersfield, California. The ZENG P&D Plant will be an important next step in an accelerating path towards demonstrating large-scale (+200 MW) commercial implementation of zero-emission power plants before the end of this decade. However, development work also entails having a detailed commercial understanding of the techno-economic potential for such power plant cycles: specifically in an environment where the future penalty for carbon dioxide (CO2) emissions remains uncertain. Work done in dialogue with suppliers during ZENG Project Phase-1 has cost-estimated all major plant components to a level commensurate with engineering pre-screening. The study has also identified several features of the proposed power plant that has enabled improvements in thermodynamic efficiency from 37% up to present level of 44–46% without compromising the criteria of implementation using “near-term” available technology. The work has investigated: i. Integration between the cryogenic air separation unit (ASU) and the power plant. ii. Use of gas turbine technology for the intermediate pressure (IP) steam turbine. iii. Optimal use of turbo-expanders and heat-exchangers to mitigate the power consumption incurred for oxygen production. iv. Improved condenser design for more efficient CO2 separation and removal. v. Sensitivity of process design criteria to “small” variations in modeling of the physical properties for CO2/steam working fluid near saturation. vi. Use of a second “conventional” pure steam Rankine bottoming cycle. In future analysis, not all these improvements need necessarily be seen to be cost-effective when taking into account total P&D program objectives; thermodynamic efficiency, power plant investment, operations and maintenance cost. However, they do represent important considerations towards “total” optimization when designing the P&D Plant. We observe that Project Phase-2: Pre-Engineering & Qualification should focus on optimization of plant size with respect to total capital investment (CAPEX); and identification of further opportunities for extended technology migration from gas turbine environment that could also permit raised turbine inlet temperatures (TIT).