720 resultados para Socket-shield


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Shortening development times of mobile phones are also accelerating the development times of mobile phone software. New features and software components should be partially implemented and tested before the actual hardware is ready. This brings challenges to software development and testing environments, especially on the user interface side. New features should be able to be tested in an environment, which has a look and feel like a real phone. Simulation environments are used to model real mobile phones. This makes possible to execute software in a mobile phone that does not yet exist. The purpose of this thesis is to integrate Socket Server software component to Series 40 simulation environments on Linux and Windows platforms. Socket Server provides TCP/IP connectivity for applications. All other software and hardware components below Socket Server do not exist in simulation environments. The scope of this work is to clarify how that can be done without connectivity problems, including design, implementation and testing phases.

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Neutrophil extracellular traps (NETs) formation is a cell death mechanism characterized by the extrusion of DNA fibers associated to antimicrobial peptides such as LL37. Beside their antimicrobial role, NETs are highly immunogenic by their ability to activate plasmacytoid dendritic cells (pDCs). In this context, LL37 binds to NET-DNA, leading to endosomal Toll¬like-receptor (TLR) 9 binding, resulting in Interferon alpha (IFNa) production by pDCs. Uncontrolled pDC activation by NETs is an important player in the pathogenesis of autoimmune disease such as Lupus Erythematosus (LE); however the regulation of NET- driven pDC activation is poorly characterized. Olfactomedin 4 (OLFM4) is a granule protein present in a subset of circulating neutrophils and was shown to bear anti-inflammatory properties in a mouse model, raising the possibility that it may regulate neutrophil-induced inflammation. Therefore, in this project, we aimed at deciphering the mechanism by which OLFM4 may regulate inflammation induced by NET-activated pDC and its relevance in the pathogenesis of Lupus Erythematosus (LE). First, we show that OLFM4 directly interacted with LL37 in neutrophils, impairing LL37/DNA complexes formation and pDC activation to produce IFNa. Then, by using an in vivo model of acute inflammation depending on NET- driven activation of pDCs, we observed that the absence of Olfm4 led to uncontrolled type I IFN production, confirming the regulatory role of neutrophil-derived OLFM4. Beyond controlling NET-induced inflammation, we also show that OLFM4 could inhibit pDC activation mediated by DNA-containing immune complexes (ICs), suggesting that OLFM4 holds anti¬inflammatory properties in the context of LE. Of note, we identified a previously unknown population of OLFM4hi9h neutrophils in healthy individuals that may belong to the immunosuppressive subset of granulocytic myeloid-derived suppressor cells (g-MDSCs). Strikingly, we observed a decreased frequency of OLFM4h'9h cells among inflammatory Low density granulocytes (LDGs) neutrophils in LE patients, suggesting that a disequilibrium between pro- and anti-inflammatory neutrophils may participate to the disease pathogenesis. Altogether, this study demonstrates that OLFM4 is involved in the resolution of inflammation. -- La NETose (formation de Neutrophil Extracellular Traps, NETs) est une réponse à un stimulus inflammatoire caractérisée par l'expulsion de l'ADN lié à des peptides antimicrobiens comme le LL37, induisant la mort de la cellule. Les NETs possèdent des propriétés antibactériennes et sont pro-inflammatoires via leur capacité à activer les cellules dendritiques plasmacytoïdes (pDCs). Dans ce contexte, les complexes ADN/LL37 libérés lient le récepteur Toll-like 9 des pDCs, induisant la production d'Interféron alpha (IFNa). La production incontrôlée d'IFNa par les pDCs est impliquée dans la pathogenèse du Lupus Erythemateux (LE), cependant la régulation de l'activation des pDCs reste mal connue. L'Oflactomédine 4 (OLFM4) est une protéine produite par une sous-population de neutrophiles, avec des propriétés anti-inflammatoires possibles. Le but de ce projet était d'identifier les mécanismes par lesquels l'OLFM4 pourrait réguler l'inflammation induite par les NETs et sa relevance dans la pathogenèse du LE. Tout d'abord, nous avons montré que l'OLFM4 interagissait avec le LL37, empêchant la production des complexes ADN/LL37 qui activent les pDCs. Nous avons vérifié notre hypothèse in vivo en utilisant un modèle murin d'inflammation locale dépendant des pDCs et des NETs. Dans ce contexte, le déficit en Olfm4 était associé à une production accrue d'IFNa, confirmant le rôle de l'OLFM4 dans le contrôle de l'inflammation. De plus, l'OLFM4 pouvait également inhiber l'activation des pDCs induite par des complexes immuns, suggérant que l'OLFM4 serait aussi anti-inflammatoire dans le contexte du LE. Ensuite, nous avons identifié une nouvelle population de neutrophiles OLFM4h'9h chez les sujets sains qui pourraient appartenir au sous-type anti¬inflammatoire des g-MDSCs (granulocytic myeloid-derived suppressor cells). Nous avons observé une diminution de ces cellules parmi les neutrophiles pro-inflammatoires LDGs (Low Density Granulocytes) dans le LE suggérant qu'un déséquilibre entre les sous-types de neutrophiles pourrait participer à l'inflammation excessive de cette maladie. Ces travaux mettent en évidence l'implication de l'OLFM4 dans la résolution de l'inflammation et suggèrent qu'une expression altérée de l'OLFM4 pourrait participer à la pathogenèse du LE. -- Les neutrophils constituent la majorité des globules blancs circulants et sont rapidement mobilisés depuis le sang dans un organe lésé en cas d'infection ou de blessure. Ils représentent la première ligne de défense du système immunitaire. Ils sont indispensables dans la défense contre les infections par leur capacité à tuer les bactéries, par exemple en produisant des peptides antimicrobiens (AMPs) qui fonctionnent comme des antibiotiques naturels. De plus, les neutrophiles recrutent les autres membres du système immunitaire qui sont nécessaires à l'éradication complète des microbes et à la réparation des tissus. Les nombreux outils permettant aux neutrophiles de contrôler les infections ne sont cependant pas sans danger pour les tissus. En effet, diverses molécules comme les AMPs peuvent induire des dommages tissulaires substantiels en participant au développement d'une inflammation chronique. Ceci est particulièrement le cas lorsque les neutrophiles meurent par un processus nommé NETose. Dans ce contexte, la cellule subit une dissolution de sa membrane suivie de l'expulsion de son ADN associé à des AMPs. Ces complexes formés d'ADN et d'AMPs induisent la production de cytokines pro-inflammatoires dont l'Interféron alpha (IFNa). Certaines maladies auto-immunes comme le lupus érythémateux sont associées à un excès de NETose produit par les neutrophiles et à un excès d'IFNa qui participe au développement de la maladie. Dans cette thèse, nous avons montré que l'Olfactomédine 4 (OLFM4), une protéine produite par les neutrophiles eux-mêmes, est un inhibiteur de cette inflammation. Nous avons démontré que TOLFM4 empêchait la formation des complexes ADN/AMPs, réduisant par là la production d'IFNa in vitro et in vivo. Finalement, nos recherches ont suggéré que l'OLFM4 pourrait être insuffisamment produite chez les patients souffrant de lupus, ce qui pourrait participer à l'inflammation chronique associée à la maladie.

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Geokemi och isotopsammansättningarna hos ca 1,8 Ga (miljarder år) gamla mafiska bergartsintrusioner studerades i två huvudområden: i) Transskandinaviska magmatiska bältet (TMB) i Bergslagen, Småland och Blekinge, södra Sverige, inklusive några prov från det ca 1,87 Ga gamla Hedesunda-komplexet i östra Bergslagen, samt ii) mindre, postkollisionala komplex i södra Finland och ryska Karelen. I det senare fallet var även tillhörande granitoider inkluderade i studierna. TMB-bergarterna skiljer sig avsevärt i utvecklingsgrad och omfattar sammansättningsmässigt bergarter från ultramafiter till kvartsdioriter. Dessa bergarters geokemi är kännetecknande för kontinentala öbågar. För sydligaste TMB och Hedesunda antyder geokemin en något mera oceanisk öbågekaraktär. Tillsammans med tidigare data antyder de av Rutanen analyserade Nd- och Sr-isotopförhållanden för TMB en ’milt utarmad’ mantelsammansättning. De mafiska bergarterna i södra Finland och ryska Karelen varierar från ultramafiska till monzodioritiska, men med avsevärt högre alkalihalter jämfört med TMB. Källan för all den studerade mafiska magmatismen kan beskrivas som en utarmad mantel som i varierande grad påverkats av fluider och smältor ur subducerande litosfärplattor. Geokemin antyder infiltrering och påverkning av H2O-dominerande fluider i övre manteln för TMB. Den mafiska ca 1,8 Ga gamla magmatismen österut avspeglar en ökande påverkan av sedimentderiverade karbonatfluider och smältor inom allt djupare mantelområden. Denna subduktionsrelaterade mantelanrikning skedde under den föregående öbågeutvecklingen i södra delarna av Finland och Sverige, samt ryska Karelen. Geokemin för en grupp granitoider, associerade med de ca 1,8 Ga gamla intrusionerna i södra Finland visar både vulkanisk öbåge och synkollisional granitoidkaraktär. Denna grupp har ett blandat magmatiskt och sedimentärt Svekofenniskt ursprung, vilket kan antas p.g.a. deras Nd- och Sr-isotopförhållanden. En annan grupp av granitoider ligger geokemiskt mellan vulkanisk öbåge- och intraplatt-granitoider, och har magmatiskt ursprung. Geokemin och isotoperna hos dessa intrusioner kan förklaras med hybridisering mellan de kraftigt anrikade, mantelderiverade magmorna, och granitmagmor från den äldre skorpan. Den ca 1,8 Ga gamla TMB-magmatismen i Sverige skedde vid sammanslutning av kontinentalrandbågar, med kontinuerlig subduktion mot öster i Bergslagen, och mot norr i de sydligare delarna. Samtidigt i öster intruderade de postkollisionala intrusionerna i skorpan omedelbart efter kollisionen med den Volgo-Sarmatiska kontinenten från sydost. Denna invecklade paleotektoniska konfiguration orsakade en tektonisk regim där litosfäriska mantelkällor levererade de starkt anrikade magmorna, vilkas uppstigning troligen möjliggjordes av djupgående postkollisionala skjuvzoner. Intrusionerna orsakade uppsmältning av den omgivande skorpan, vilket framkallade den associerade granitoidmagmatismen.

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The analysis of fossil diatoms and Mallomonas assemblages in a 2.85 m sediment core revealed that a series of distinct floristic changes have occurred in the development of Found Lake, a small Shield lake in southern Ontario. Climatic and vegetational changes in the lake's watershed were closely associated with successional changes in the lake's biota. Nutrients released by the deciduous component of the Found Lake watershed appeared to be especially important in determining diatom and Mallomonas standing crop. The top 20 cm of sediment of 3 ,Shield lakes was then investigated using close interval (1 cm) analyses of diatoms, Mallomonas scales, pollen grains and sedimentary phosphorus. Found and Jake Lake are adjacent to Highway 60, whereas Delano Lake has been undisturbed and was used as a control. Dramatic changes in the diatom and Mallomonas communities were recorded in the Found and Jake Lake stratigraphies and could be closely associated with known historical events. Increased turbidity and nutrient enrichment were believed responsible for these successional changes. In addition, diatom and Mallomonas standing crop increased substantially following road construction in Found Lake's drainage basin. Meanwhile, no. sharp changes in diatom or Mallomonas communities were recorded in the recent sediments of the control (Delano) lake. The use£ulness o£ Synuracean scales as paleoindicators, as well as the importance o£ sectioning cores at close intervals during transition periods in a laker's development, was stressed.

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This original Brown Bess socket mount bayonet is vintage War of 1812. It was purchased in the Niagara area and likely has a long local provenance.

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The purpose of the present study is to understand the surface deformation associated with the Killari and Wadakkancheri earthquake and to examine if there are any evidence of occurrence of paleo-earthquakes in this region or its vicinity. The present study is an attempt to characterize active tectonic structures from two areas within penisular India: the sites of 1993 Killari (Latur) (Mb 6.3) and 1994 Wadakkancheri (M 4.3) earthquakes in the Precambrian shield. The main objectives of the study are to isolate structures related to active tectonism, constraint the style of near – surface deformation and identify previous events by interpreting the deformational features. The study indicates the existence of a NW-SE trending pre-existing fault, passing through the epicentral area of the 1993 Killari earthquake. It presents the salient features obtained during the field investigations in and around the rupture zone. Details of mapping of the scrap, trenching, and shallow drilling are discussed here. It presents the geologic and tectonic settings of the Wadakkancheri area and the local seismicity; interpretation of remote sensing data and a detailed geomorphic analysis. Quantitative geomorphic analysis around the epicenter of the Wadakkancheri earthquake indicates suitable neotectonic rejuvenation. Evaluation of remote sensing data shows distinct linear features including the presence of potentially active WNW-ESE trending fault within the Precambrian shear zone. The study concludes that the earthquakes in the shield area are mostly associated with discrete faults that are developed in association with the preexisting shear zones or structurally weak zones

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We report evidence for a major ice stream that operated over the northwestern Canadian Shield in the Keewatin Sector of the Laurentide Ice Sheet during the last deglaciation 9000-8200 (uncalibrated) yr BP. It is reconstructed at 450 km in length, 140 km in width, and had an estimated catchment area of 190000 km. Mapping from satellite imagery reveals a suite of bedforms ('flow-set') characterized by a highly convergent onset zone, abrupt lateral margins, and where flow was presumed to have been fastest, a remarkably coherent pattern of mega-scale glacial lineations with lengths approaching 13 km and elongation ratios in excess of 40:1. Spatial variations in bedform elongation within the flow-set match the expected velocity field of a terrestrial ice stream. The flow pattern does not appear to be steered by topography and its location on the hard bedrock of the Canadian Shield is surprising. A soft sedimentary basin may have influenced ice-stream activity by lubricating the bed over the downstream crystalline bedrock, but it is unlikely that it operated over a pervasively deforming till layer. The location of the ice stream challenges the view that they only arise in deep bedrock troughs or over thick deposits of 'soft' fine-grained sediments. We speculate that fast ice flow may have been triggered when a steep ice sheet surface gradient with high driving stresses contacted a proglacial lake. An increase in velocity through calving could have propagated fast ice flow upstream (in the vicinity of the Keewatin Ice Divide) through a series of thermomechanical feedback mechanisms. It exerted a considerable impact on the Laurentide Ice Sheet, forcing the demise of one of the last major ice centres.

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Elucidating the controls on the location and vigor of ice streams is crucial to understanding the processes that lead to fast disintegration of ice flows and ice sheets. In the former North American Laurentide ice sheet, ice stream occurrence appears to have been governed by topographic troughs or areas of soft-sediment geology. This paper reports robust evidence of a major paleo-ice stream over the northwestern Canadian Shield, an area previously assumed to be incompatible with fast ice flow because of the low relief and relatively hard bedrock. A coherent pattern of subglacial bedforms (drumlins and megascalle glacial lineations) demarcates the ice stream flow set, which exhibits a convergent onset zone, a narrow main trunk with abrupt lateral margins, and a lobate terminus. Variations in bedform elongation ratio within the flow set match theoretical expectations of ice velocity. In the center of the ice stream, extremely parallel megascalle glacial lineations tens of kilometers long with elongation ratios in excess of 40:1 attest to a single episode of rapid ice flow. We conclude that while bed properties are likely to be influential in determining the occurrence and vigor of ice streams, contrary to established views, widespread soft-bed geology is not an essential requirement for those ice streams without topographic control. We speculate that the ice stream acted as a release valve on ice-sheet mass balance and was initiated by the presence of a proglacial lake that destabilized the ice-sheet margin and propagated fast ice flow through a series of thermomechanical feedbacks involving ice flow and temperature.

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During deglaciation of the North American Laurentide Ice Sheet large proglacial lakes developed in positions where proglacial drainage was impeded by the ice margin. For some of these lakes, it is known that subsequent drainage had an abrupt and widespread impact on North Atlantic Ocean circulation and climate, but less is known about the impact that the lakes exerted on ice sheet dynamics. This paper reports palaeogeographic reconstructions of the evolution of proglacial lakes during deglaciation across the northwestern Canadian Shield, covering an area in excess of 1,000,000 km(2) as the ice sheet retreated some 600 km. The interactions between proglacial lakes and ice sheet flow are explored, with a particular emphasis on whether the disposition of lakes may have influenced the location of the Dubawnt Lake ice stream. This ice stream falls outside the existing paradigm for ice streams in the Laurentide Ice Sheet because it did not operate over fined-grained till or lie in a topographic trough. Ice margin positions and a digital elevation model are utilised to predict the geometry and depth of proglacial takes impounded at the margin at 30-km increments during deglaciation. Palaeogeographic reconstructions match well with previous independent estimates of lake coverage inferred from field evidence, and results suggest that the development of a deep lake in the Thelon drainage basin may have been influential in initiating the ice stream by inducing calving, drawing down ice and triggering fast ice flow. This is the only location alongside this sector of the ice sheet where large (>3000 km(2)), deep lakes (similar to120 m) are impounded for a significant length of time and exactly matches the location of the ice stream. It is speculated that the commencement of calving at the ice sheet margin may have taken the system beyond a threshold and was sufficient to trigger rapid motion but that once initiated, calving processes and losses were insignificant to the functioning of the ice stream. It is thus concluded that proglacial lakes are likely to have been an important control on ice sheet dynamics during deglaciation of the Laurentide Ice Sheet. (C) 2004 Elsevier B.V. All rights reserved.

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Previously the authors have presented both theoretical and experimental work discussing the operating mechanism of a wire rope held in a tapered socket by means of a cast resin cone. The work reported here extends the investigation to address the question of whether the same socket fabricated with white metal operates in the same manner. To date, previous investigations have compared the operational efficiency of resin and white metal in terms of both strength and/or fatigue endurance. Some other work has analysed the operation of resin sockets or specific cast metal terminations. This paper seeks to draw the results from this work together, and, in addition to a theoretical analysis, presents experimental data obtained from a direct comparison of the operation mechanism for the same sockets filled with resin or white metal. Results show that white metal terminations have a very different distribution of stresses along the length of the socket basket from resin terminations, and a smaller but still significant amount of socket draw. For both types of termination the socket draw develops high frictional gripping forces which can transfer the load from the rope to the socket. The different stress distributions mean that the consequences of termination fabrication defects may not be the same for resin and white metal terminations.

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A new drug delivery method for infants is presented which incorporates an active pharmaceutical ingredient (API)-loaded insert into a nipple shield delivery system (NSDS). The API is released directly into milk during breastfeeding. This study investigates the feasibility of using the NSDS to deliver the microbicide sodium dodecyl sulfate (SDS), with the goal of preventing mother-to-child transmission (MTCT) of HIV during breastfeeding in low-resource settings, when there is no safer alternative for the infant but to breastfeed. SDS has been previously shown to effectively inactivate HIV in human milk. An apparatus was developed to simulate milk flow through and drug release from a NSDS. Using this apparatus milk was pulsed through a prototype device containing a non-woven fiber insert impregnated with SDS and the microbicide was rapidly released. The total SDS release from inserts ranged from 70 to 100% of the average 0.07 g load within 50 ml (the volume of a typical breastfeed). Human milk spiked with H9/HIVIIIB cells was also passed through the same set-up. Greater than 99% reduction of cell-associated HIV infectivity was achieved in the first 10 ml of milk. This proof of concept study demonstrates efficient drug delivery to breastfeeding infants is achievable using the NSDS.

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The stylistic strategies, in particular those concerning camera placement and movement, of The Shield (FX, 2002-08) seem to directly fit into an aesthetic tradition developed by US cop dramas like Hill Street Blues (NBC, 1981-87), Homicide: Life on the Street (NBC, 1993-99) and NYPD Blue (ABC, 1993-2005). In these precinct dramas, decisions concerning spatial arrangements of camera and performer foreground a desire to present and react to action while it is happening, and with a minimum of apparent construction. As Jonathan Bignell (2009) has argued, the intimacy and immediacy of this stylistic approach, which has at its core an attempt at a documentary-like realism, is important to the police drama as a genre, while also being tendencies that have been taken as specific characteristics of television more generally. I explore how The Shield develops this tradition of a reactive camera style in its strategy of shooting with two cameras rather than one, with specific attention to how this shapes the presentation of performance. Through a detailed examination of the relationship between performer and camera(s) the chapter considers the way the series establishes access to the fictional world, which is crucial to the manner of police investigation central to its drama, and the impact of this on how we engage with performance. The cameras’ placement appears to balance various impulses, including: the demands of attending to an ensemble cast, spontaneous performance style, and action that is physically dynamic and involving. In a series that makes stylistic decisions around presentation of the body on-screen deliberately close yet obstructive, involving yet fleeting, the chapter explores the affect of this on the watching experience.

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Objective. The aim of this study was to evaluate the rat alveolar socket response to implanted polyethylene tubes filled with a light-cured MTA or Angelus MTA.Study design. Fifty-seven Wistar rats received an implant filled with one of the materials in the dental socket of the right central incisor. After 30, 60, and 90 days, animals were killed, and the right hemimaxillas were removed and processed to be analyzed on light microscopy. After embedding in paraffin, 6-mu m-thick sections were obtained and stained with hematoxylin and eosin. Qualitative and quantitative analyses of the reaction were performed.Results. It was observed that the light-cured MTA presented a similar response compared with Angelus MTA, characterized by the reduction of the chronic inflammatory response and organization of the alveolar bone close to the materials, especially at the 90th day of observation.Conclusions. It was concluded that both materials were well accepted by the alveolar tissue of rats, with the formation of mineralized tissue close to the materials. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2010;110:e93-e97)