Particel size distribution and microstructures of sediments from ODP Leg 205 sites (Table 1)

Ocean Drilling Program Legs 170 and 205 offshore Costa Rica provide structural observations which support a new model for the geometry and deformation response to the seismic cycle of the frontal sedimentary prism and decollement. The model is based on drillcore, thin section, and electron microscope observations. The decollement damage zone is a few tens of meters in width, it develops mainly within the frontal prism. A clear cm-thick fault core is observed 1.6 km from the trench. The lower boundary of the fault core is coincident with the lithological boundary between the frontal prism and the hemipelagic and pelagic sediment of the Cocos plate. Breccia clast distributions in the upper portion of the decollement damage zone were studied through fractal analysis. This analysis shows that the fractal dimension changes with brecciated fragment size, implying that deformation was not accommodated by self-similar fracturing. A higher fractal dimensionality correlates with smaller particle size, which indicates that different or additional grain-size reduction processes operated during shearing. The co-existence of two distinct fracturing processes is also confirmed by microscopic analysis in which extension fracturing in the upper part of the damage zone farthest from the fault core is frequent, while both extension and shear fracturing occur approaching the fault core. The coexistence of extensional and shear fracturing seems to be best explained by fluid pressure variations in response to variations of the compressional regime during the seismic cycle. During the co-seismic event, sub-horizontal compression and fluid pressure increase, triggering shear fracturing and fluid expulsion. Fractures migrate upward with fluids, contributing to the asymmetric shape of the decollement, while slip propagates. In the inter-seismic interval the frontal prismrelaxes and fluid pressure drops. The frontal prismgoes into diffuse extension during the intervalwhen plate convergence is accommodated by creep along the ductile fault core. The fault core is typically a barrier to deformation, which is explained by its weak, but impermeable, nature. The localized development of a damage zone beneath the fault core is characterized by shear fracturing that appears as the result of local strengthening of the detachment.

Phospholipid fatty acid and quinone composition of sediments from ODP Leg 205 sites

Assessing the habitability of deep-sea sediments undergoing compaction, compression, and subduction at convergent margins adds to our understanding of the limits of the terrestrial biosphere. In this work, we report exploratory biomarker data on sediments obtained at Ocean Drilling Program (ODP) Sites 1253, 1254, and 1255 during drilling at the Costa Rica subduction trench and forearc sedimentary wedge. The samples selected for postcruise biomarker analyses were located within intervals of potentially enhanced fluid flow within the décollement and sedimentary wedge fault zones (Sites 1254 and 1255) and within basal carbonates at the reference site (Site 1253). The passage of fluids that are geochemically distinct from ambient interstitial water provides a disequilibrium setting that may enhance habitability. Biomarker data show low levels of microbial biomass in subseafloor sediments sampled at the Costa Rica convergent margin as deep as ~370 meters below seafloor.

205-14 A Monograph of the plant-infecting members of the Order Clavicipitales in

Taxonomic revision of ergots and related fungi in Australia.

Sapientia, 1999, Vol. LIV, nº 205 (número completo)

Contenido: La encíclica Fides et ratio de Juan Pablo II / La Dirección – Die Gegenwart del Themis bei Parmenides un der entzug der bestimmung im Heideggers Lichtung / Stefan Winter – El tiempo como medida de la primera esfera en la Física de Aristóteles / Marcelo L. Imperiale – St. Albert the Great and St. Thomas Aquinas on the presence of elements in compounds / Steven Baldner – Santo Tomás de Aquino, psicólogo / Ignacio Andereggen – Aquinas on creation and the metaphysical foundation of science / William E. Carroll – Las fuentes jurídicas romanas en Santo Tomás de Aquino / Alfredo Gustavo Di Pietro – La causalidad humana en la filosofía de la historia de Giambattista Vico / Juan Francisco Franck – Questions disputées de la politique chrétienne de Jacques Maritain / Yves Floucat – Die tektonik des submodernen Denkens im Schein ihrer Kunst / Heribert Boeder – El concepto de tolerancia / Alejandro G. Vigo – Modern science and time: an evaluation / Leo J. Elders – Tecnociencia y crisis ambiental / Héctor J. Padrón – The importante of order in theological discusión / Timothy L. Smith – La metafísica a pesar de Heidegger / Mario Enrique Sacchi – Notas y comentarios – Bibliografía

Diário da Constituinte [gravação de vídeo] : [programa n. 205]

Grupo dos 32 (Trinta e dois) reúne-se para estudar os pontos críticos do substitutivo apresentado pelo Relator Bernardo Cabral, em busca de entendimento com o Grupo do Consenso em relação a temas como a reforma agrária, a anistia e sistema tributário. O Grupo dos 32 examinou também o capítulo sobre a administração pública. A Deputada Sandra Cavalcante (PFL-RJ) informa que a administração pública necessita de regras mais rígidas, de forma a acabar com o clientelismo dentro do Estado. Para o PMDB o substitutivo do relator, Deputado Bernardo Cabral (PMDB-AM), tem avanços importantes, mas há pontos que precisam refletir melhor as posições defendidas pelo partido. O Líder do PMDB, Deputado Mário Covas, considera que, tanto quanto possível, a Constituição será objeto de negociação, mas há certos temas que terão que ser decididos pelo voto no Plenário da Assembleia Nacional Constituinte (ANC). Um dos pontos que o PMDB quer mudar é a Reforma Agrária. Para José Eduardo Raduan, Presidente do Instituto Nacional de Colonização e Reforma Agrária (INCRA), é inviável a Reforma Agrária com imissão de posse após 90 dias da desapropriação. Projeto de Constituição não torna obrigatório o diploma de jornalismo para ser jornalista. O Deputado Carlos Alberto Oliveira (PDT-RJ) considera que é desastroso para o exercício de cidadania, porque a profissão de jornalista é tão especializada como tantas outras. A Deputada Cristina Tavares (PMDB-PE) declara que se trata de um dos mais graves retrocessos. Estudantes e professores de comunicação também são contra o fim da exigência de diploma. O professor de comunicação da UNB Wladimir de Carvalho declara que o caso parece ser resultado de um lobby da grande imprensa. Já o também professor de comunicação da UNB Murilo Ramos informa que o objetivo é abrir o mercado de mão-de-obra, para aumentar o lucro dos empresários. O Deputado Antônio Brito (PMDB-RS) afirma que a luta não é só dos jornalistas e sua situação profissional, mas que há preocupação com o país e com a qualidade da informação que os brasileiros receberão.

二(2,4,4-三甲基戊基)单硫代膦酸-上胺205-正庚烷乳状液膜萃取分离钪(Ⅲ)、铁(Ⅲ)和镥(Ⅲ)

本文研究了外水相ｐＨ值、流动载体浓度、表面活性剂浓度、内相解析酸浓度、水乳比、油内比等因素对二（２，４，４－三甲基戊基）单硫代膦酸（Ｃｙａｎｅｘ３０２）－上胺２０５－正庚烷乳状液 膜迁移Ｓｃ（Ⅲ）的影响。在一定条件下，Ｓｃ（Ⅲ）可以快速而完全地迁移，有可能实现Ｓｃ（Ⅲ）与Ｆｅ（Ⅲ）、Ｌｕ（Ⅲ）的分离。

异丙基膦酸单(1-己基-4-乙基)辛酯上胺205-正庚烷乳状液膜分离钪(Ⅲ)、铁(Ⅲ)、镥(Ⅲ)

本文研究了异丙基膦酸单（１－己基－４－乙基）辛酯（简称ＰＴ－２）上胺２０５－正庚烷乳状液膜分离钪（Ⅲ），铁（Ⅲ），镥（Ⅲ）及外相酸度、表面活性剂浓度、流动载体浓度和内相酸度对Ｓｃ（Ⅲ）、Ｆｅ（Ⅲ）、Ｌｕ（Ⅲ）迁移影响。实验结果表明，在一定的条件下Ｓｃ（Ⅲ）有可能实现与Ｆｅ（Ⅲ）、Ｌｕ（Ⅲ）的分离。

二(2,4,4-三甲基戊基)膦酸-上胺205-正庚烷乳状液膜分离钪(Ⅲ)、铁(Ⅲ)和镥(Ⅲ)

本文研究了二（2，4，4-三甲基戊基）膦酸（Cyanex272）-上胺205-正庚烷乳状液膜分离Sc（Ⅲ）、Fe（Ⅲ）和Lu（Ⅲ）。考察了外相酸度、表面活性剂浓度、流动载体浓度及内相盐酸浓度对Sc（Ⅲ）迁移的影响。并探讨了该液膜体系分离Sc（Ⅲ）、Fe（Ⅲ）和Lu（Ⅲ）的可能性，结果表明，该体系对于稀土矿中Sc（Ⅲ）的分离与分析有良好的应用前景。

Skin langerin+ dendritic cells transport intradermally injected anti-DEC-205 antibodies but are not essential for subsequent cytotoxic CD8+ T cell responses

Incorporation of Ags by dendritic cells (DCs) increases when Ags are targeted to endocytic receptors by mAbs. We have previously demonstrated in the mouse that mAbs against C-type lectins administered intradermally are taken up by epidermal Langerhans cells (LCs), dermal Langerin(neg) DCs, and dermal Langerin(+) DCs in situ. However, the relative contribution of these skin DC subsets to the induction of immune responses after Ag targeting has not been addressed in vivo. We show in this study that murine epidermal LCs and dermal DCs transport intradermally injected mAbs against the lectin receptor DEC-205/CD205 in vivo. Skin DCs targeted in situ with mAbs migrated through lymphatic vessels in steady state and inflammation. In the skin-draining lymph nodes, targeting mAbs were found in resident CD8a(+) DCs and in migrating skin DCs. More than 70% of targeted DCs expressed Langerin, including dermal Langerin(+) DCs and LCs. Numbers of targeted skin DCs in the nodes increased 2-3-fold when skin was topically inflamed by the TLR7 agonist imiquimod. Complete removal of the site where OVA-coupled anti-DEC-205 had been injected decreased endogenous cytotoxic responses against OVA peptide-loaded target cells by 40-50%. Surprisingly, selective ablation of all Langerin(+) skin DCs in Langerin-DTR knock-in mice did not affect such responses independently of the adjuvant chosen. Thus, in cutaneous immunization strategies where Ag is targeted to DCs, Langerin(+) skin DCs play a major role in transport of anti-DEC-205 mAb, although Langerin(neg) dermal DCs and CD8a(+) DCs are sufficient to subsequent CD8(+) T cell responses.