(Table 1) Compressional- and share-wave velocieties at elevated confining pressure of ODP Holes 136-842C and 136-843A

Identification of a sediment/basement contact using seismic reflection recordings has proven to be extremely difficult in wide areas of the North Pacific Ocean owing to the presence of massive, highly reflective chert layers within the sediment column. Leg 136 of the Ocean Drilling Program recovered coherent pieces of chert of sufficient size for the first comprehensive laboratory measurements of the seismic properties of this material. Compressional-wave velocities of six samples at 40-MPa confining pressure averaged 5.33 km/s, whereas shear-wave velocities at the same pressure averaged 3.48 km/s. Velocities were independent of porosity, which ranged from 5% to 13%, suggesting that pores within the samples were mostly high aspect ratio vugs as opposed to low aspect ratio cracks. Back-scattered electron images made with a scanning electron microscope confirmed this observation. Acoustic impedances were calculated for the chert samples and from shipboard measurements of the red clay sediment overlying the chert layers. An extremely large compressional-wave reflection coefficient (0.73) characterized the interface between the two lithologies. A synthetic seismogram was calculated using chert and typical pelagic carbonate properties to illustrate the influence of chert layers on a marine seismic-reflection section. Compressional-wave to shear-wave velocity ratios of the chert samples (Vp/Vs =1.53) are close to that of single-crystal quartz in spite of variable porosity. Shear-wave reflection coefficients are estimated to be approximately 0.94. A compressional-wave reflection coefficient for a basement/sediment (carbonate) interface is estimated to be approximately 0.50, significantly less than that of sediment/chert.

Radiolarians of DSDP Site 136-842 and Hole 136-843C

Deep-sea cores recovered at Sites 842 and 843 on Leg 136 of the Ocean Drilling Program have yielded assemblages of Quaternary, Eocene, and Cretaceous radiolarians from the Hawaiian Arch region of the northern equatorial Pacific Ocean. Reddish-brown clays from Hole 842A (0-9.6 mbsf), Hole 842B (0-6.3 mbsf), and Hole 843C (0-4.2 mbsf) contain abundant and diverse assemblages of Quaternary radiolarians consisting of more than 80 species typical of the equatorial Pacific region. Quaternary radiolarians at these sites are assignable to the Quaternary Collosphaera tuberosa Interval Zone and Amphirhopalum ypsilon Interval Zone. The boundary between these zones cannot be determined precisely because of the rarity of zonal markers below surface sediments. Correlations have been made between radiolarian occurrences and magnetostratigraphic events elsewhere in the Pacific Ocean, but similar correlations are difficult at Sites 842 and 843 because of poor subsurface preservation. Chert samples collected from intervals in Cores 842B-10X and 842C-1W have yielded radiolarian ages of lower Cenomanian to Santonian and lower Cenomanian, respectively. Radiolarian assemblages in volcanic sand layers in Sections 6 and 7 of Core 842A-1H (7.5-9.6 mbsf) contain lower and middle Eocene radiolarians admixed with abundant Quaternary faunas. Reworked Eocene radiolarians appear to be restricted to thin layers of volcanic sands within the cores, suggesting deposition by turbidity currents.

Comentario a la sentencia de la Rota Romana del 27/10/2006, Coram R. P. D. Mauricio Monier, ponente prot. N. 17.557 – sent. 136/06

Introducción: La presente Sentencia contempla la nulidad de un matrimonio en que las partes tuvieron un noviazgo de más de cuatro años y una convivencia matrimonial de dos años y medio, en la que no hubo hijos. La separación de las partes definitiva tuvo lugar porque el convenido era incapaz de instalar una vida verdaderamente conyugal. Se me solicita un comentario a esta Sentencia, publicada en su texto original latino y en su traducción castellana, cuando ya existe un breve, pero medular y excelente comentario del Revdo. Mons. Dr. Alejandro W. Bunge, Juez de la Rota, publicado en el libro “Pius et Prudens”, con el título de “Una Sentencia integradora”1. Además, el indicado comentario, se encuentra en el contexto de un generoso elogio a la persona de quien suscribe por la preocupación acerca de la indebida omnipresencia de las causas psíquicas de nulidad matrimonial en los Tribunales eclesiásticos, cuando muchas veces es más ajustada a la verdad y se deberían tener en cuenta, las causas éticas, concretamente las exclusiones de algunos de los fines o de las propiedades esenciales del matrimonio que tiene lugar por parte de los cónyuges...

Diário da Constituinte [gravação de vídeo] : [programa n. 136 A]

Descrição do Projeto Nhundiaquara, uma experiência de reforma agrária no município de Morretes, no litoral do Paraná, baseada na distribuição de terras de uma antiga usina de açúcar. Assentados falam das suas terras e do trabalho. A assistência aos assentados é feita pela ACARPA (Associação de Crédito e Assistência Rural do Paraná), cujos técnicos fornecem sementes, ensinam técnicas de cultivo e dão apoio financeiro. Apresentação de dados sobre projetos de assentamentos criados pelo INCRA no Brasil. Assentados acreditam na reforma agrária e pedem aos deputados e senadores da Assembleia Nacional Constituinte (ANC) melhores condições de trabalho aos colonos.

Diário da Constituinte [gravação de vídeo] : [programa n. 136]

Proibir a fabricação de armas nucleares no Brasil e preservar as terras indígenas são as principais reivindicações dos cientistas à Assembleia Nacional Constituinte (ANC). Reunidos na 39ª Reunião Anual da Sociedade Brasileira para o Progresso da Ciência (SBPC), os pesquisadores querem debater suas propostas com os constituintes. Carolina Bori, Presidente da SBPC quer apresentar as propostas da SBPC, que não interessam só aos cientistas, mas à sociedade brasileira. A SBPC vai enviar duas proposta de emendas populares. O Reitor da USP José Goldemberg é contra a fabricação de armas nucleares no país. Os cientistas querem também a manutenção da proposta que dá poderes somente ao Congresso Nacional para autorizar a mineração nos territórios indígenas. Manuela C. da Cunha, Presidente da Associação Brasileira de Antropologia, defende que somente a União tenha o privilégio da pesquisa e lavra em áreas indígenas. Wanderlino T. da Carvalho, Presidente da Coordenação Nacional de Geólogos, propõe que as terras indígenas se tornem reservas nacionais de minérios, cuja exploração não é urgente para as necessidades do país no momento. Aílton Krenak, representante da União das Nações Indígenas, afirma que as comunidades indígenas querem ter o direito de esboçar um projeto próprio de futuro e que deverão ter assegurado o direito à terra e aos recursos naturais nela existentes . A Comissão de Sistematização discute o pedido de anulação da aprovação do projeto que proíbe a conversão da dívida externa em investimento de capital estrangeiro no país. O Líder do Governo Carlos Sant'Anna (PFL-BA) diz que a matéria é assunto do Congresso e não da Constituinte. Paulo Ramos (PMDB-RJ), autor do projeto, discorda.

On the feeding of freshwater ostracods. [Translation of: Zoologicheskij zhurnal, 27(2), 1948, 125-136]

The present work appertains to a series of investigations in the field of trophodynamics of water bodies conducted by the department of hydrobiology ”Mosrybvtuza” under the leadership of Prof. Director N.S. Gaevska. Usually with quantitative collections of benthos ostracoda are hardly taken account of. But with the employment of special methods it is possible to be convinced that they are encountered in massive numbers. The role of ostracods in the nutrition of fish is recognised as important by many authors. On the question of the feeding of ostracods, in the literature there are only the fragmentary indications about the occurrence in the gut of ostracods of algae (diatoms, desmids) and detritus. The study of the feeding of ostracods was conducted both by the method of dissecting the guts of ostracods taken from natural waters, and by the method of feeding ostracods under laboratory conditions with a variety of food objects. Moreover, with a view to revision of obtained quantitative data, for determination of food requirements of ostracods the respiration method was applied.

Experiments on the production of a highly dispersible calcium carbonate. ('Experimental section' only) [Translation from: Szklo i Ceramiki 30, 133-136, 1979]

This short translation summarises experiments on the production of a highly dispersible precipitate of calcium carbonate. The translation covers the 'Experimental section' (of the original larger paper) only.