Contribución al conocimiento del Tachysurus barbus (Lacépède), bagre del Mar Argentino (Pisces, Ariidae).

A las costas bonaerenses llega en en verano ese típico representante de la fauna sudbrasileña, cuyo estudio consideramos de interés por ser el único bagre que en cierta cantidad suele ser capturado en Mar del Plata y Necochea cuando se realiza la pesca de especies de interés comercial. Damos la sinonimia, descripción y distribución de la especie y, como contribución a su conocimiento, el estudio anatómico del aparato digestivo.

Novedades sobre derechos de información y facilidades para los representantes de los trabajadores en supuestos de subcontratación

Los fenómenos de descentralización productiva y de fragmentación de las estructuras empresariales generan problemas para articular la protección de los trabajadores a través de representaciones colectivas a nivel de empresa. El legislador ha tomado conciencia de esas dificultades y ha introducido algunos mecanismos correctores. Este estudio analiza con detalle el libro registro, como obligación documental en los supuestos de subcontratación y que sirve de apoyo a los derechos de información y las facultades de vigilancia de los representantes de los trabajadores en la empresa y las novedades en materia de coordinación de actividades entre representantes de los trabajadores de diferentes empresas en los supuestos de desarrollo de actividades en un mismo espacio físico.

Collecção das Leis do Imperio do Brazil de 1879

Parte 1 - Atos do Poder Legislativo

Garapenaren ekonomiari loturiko pentsamendu ekonomikoen bilakaeraren hurbilketa bat

Artikulu honek garapenaren politika ekonomiko ezberdinek, XX. mendearen erdi aldetik aurrera, garapen ekonomikoari buruz azaldu dituzten ekarpen esanguratsuenen laburpen bat aurkeztea du helburu. Horretarako,Garapenaren Teoria Ekonomikoarekin zerikusia duten paradigma ezberdinak defendatzen dituzten pentsamendu korronte batzuen ezaugarri nagusienak landuko dira, besteak beste: herrialde baten industrializazioa ezinbesteko irtenbide moduan planteatzen duen Modernizazioaren Teoria; Teoria Estrukturalista, modernizazioaren alternatiba moduan sortu zen eskola heterodoxoa, lehenengo aldiz Zentro-Periferia sistemaren ideia planteatu zuena; Garapenaren Teoria Neoliberala, azpigarapena Estatuaren partehartzearen ondorioz sortzen den merkatuaren funtzionamendu ezegokiak eragiten duen egoera bezala ulertzen duena; eta, Garapenari buruzko Hautabidezko Teoriak, orokorrean, banakakoen oinarrizko beharrak asetzearen garrantzia azpimarratzen dituztenak.

Sediment Quality in Puget Sound Year 3 - Southern Puget Sound

As a component of a three-year cooperative effort of the Washington State Department of Ecology and the National Oceanic and Atmospheric Administration, surficial sediment samples from 100 locations in southern Puget Sound were collected in 1999 to determine their relative quality based on measures of toxicity, chemical contamination, and benthic infaunal assemblage structure. The survey encompassed an area of approximately 858 km2, ranging from East and Colvos Passages south to Oakland Bay, and including Hood Canal. Toxic responses were most severe in some of the industrialized waterways of Tacoma’s Commencement Bay. Other industrialized harbors in which sediments induced toxic responses on smaller scales included the Port of Olympia, Oakland Bay at Shelton, Gig Harbor, Port Ludlow, and Port Gamble. Based on the methods selected for this survey, the spatial extent of toxicity for the southern Puget Sound survey area was 0% of the total survey area for amphipod survival, 5.7% for urchin fertilization, 0.2% for microbial bioluminescence, and 5- 38% with the cytochrome P450 HRGS assay. Measurements of trace metals, PAHs, PCBs, chlorinated pesticides, other organic chemicals, and other characteristics of the sediments, indicated that 20 of the 100 samples collected had one or more chemical concentrations that exceeded applicable, effects-based sediment guidelines and/or Washington State standards. Chemical contamination was highest in eight samples collected in or near the industrialized waterways of Commencement Bay. Samples from the Thea Foss and Middle Waterways were primarily contaminated with a mixture of PAHs and trace metals, whereas those from Hylebos Waterway were contaminated with chlorinated organic hydrocarbons. The remaining 12 samples with elevated chemical concentrations primarily had high levels of other chemicals, including bis(2-ethylhexyl) phthalate, benzoic acid, benzyl alcohol, and phenol. The characteristics of benthic infaunal assemblages in south Puget Sound differed considerably among locations and habitat types throughout the study area. In general, many of the small embayments and inlets throughout the study area had infaunal assemblages with relatively low total abundance, taxa richness, evenness, and dominance values, although total abundance values were very high in some cases, typically due to high abundance of one organism such as the polychaete Aphelochaeta sp. N1. The majority of the samples collected from passages, outer embayments, and larger bodies of water tended to have infaunal assemblages with higher total abundance, taxa richness, evenness, and dominance values. Two samples collected in the Port of Olympia near a superfund cleanup site had no living organisms in them. A weight-of-evidence approach used to simultaneously examine all three “sediment quality triad” parameters, identified 11 stations (representing 4.4 km2, 0.5% of the total study area) with sediment toxicity, chemical contamination, and altered benthos (i.e., degraded sediment quality), 36 stations (493.5 km2, 57.5% total study area) with no toxicity or chemical contamination (i.e., high sediment quality), 35 stations (274.1 km2, 32.0% total study area) with one impaired sediment triad parameter (i.e., intermediate/high sediment quality), and 18 stations (85.7km2, 10.0% total study area) with two impaired sediment parameters (i.e., intermediate/degraded quality sediments). Generally, upon comparison, the number of stations with degraded sediments based upon the sediment quality triad of data was slightly greater in the central Puget Sound than in the northern and southern Puget Sound study areas, with the percent of the total study area degraded in each region decreasing from central to north to south (2.8, 1.3 and 0.5%, respectively). Overall, the sediments collected in Puget Sound during the combined 1997-1999 surveys were among the least contaminated relative to other marine bays and estuaries studied by NOAA using equivalent methods. (PDF contains 351 pages)

Emerging trends and experiences in Asia-Pacific aquaculture: 2003

This document provides an overview of topical issues in Asian aquaculture for 2003, including a review of its status, progress in research and development, major issues and experiences, together with suggestions on actions for addressing opportunities and constraints. The document has been prepared by NACA and FAO to facilitate discussions at the 15th NACA Governing Council meeting, hosted by the Government of Sri Lanka on 21st-25th April 2004. The final version will be widely circulated as the editors hope it will prove a useful document for all involved in aquaculture, and related fishery development in the Asia-Pacific region. Pending feedback on this 2003 document, further reviews may be considered by NACA and FAO as a way of bringing together regularly in one publication relevant and key issues facing development of aquaculture in the Asia-Pacific region. (PDF contains 153 pages)

Nova edição official do codigo criminal brasileiro de 1830 : ante-projecto, seguido do parecer sobre elle por uma commissão especial (e refutação do mesmo parecer) elaborado em 1889 pelo Advogado Dr. João Vieira de Araújo professor jubilado de direito, deputado federal e antigo Magistrado

Legislaturas: (1891-1893), (1897-1899), (1900-1905), (1906-1908), (1909-1911)

Estrategias y técnicas de traducción para el ajuste o adaptación en el doblaje

Raquel Merino Álvarez, José Miguel Santamaría, Eterio Pajares (eds.)

Rarefied gas dynamics: fundamentals, simulations and micro flows

Adiabatic shear localization: occurrence, theories, and applications

材料和结构的动态响应

《材料和结构的动态响应》是我国爆炸力学、冲击动力学领域的专家、教授、学者们为祝贺爆炸力学、冲击动力学专家王礼立教授七十华诞而撰写的一部学术著作，从不同的角度展示了我国乃至国际上近年来在该领域所取得的知识创新成果及学科发展动向，为促进爆炸力学、冲击动力学的理论创新和科技进步，造福人类，做出积极努力。

Field guide to requiem sharks (Elasmobranchiomorphi: Carcharhinidae) of the Western North Atlantic

Identification problems are common for many sharks due to a general lack of meristic characteristics that are typically useful for separating species. Other than number of vertebrae and number and shape of teeth, identifications are frequently based on external features that are often shared among species. Identification problems in the field are most prevalent when live specimens are captured and releasing them with a minimum of stress is a priority (e.g., shark tagging programs). Identifications must be accurate and conducted quickly but this can be challenging, especially if specimens are very active or too large to be landed without physical damage. This field guide was designed primarily for use during field studies and presents a simplified method for identifying the 21 species of western North Atlantic Ocean sharks belonging to the family Carcharhinidae (carcharhinids). To assist with identifications a dichotomous key to Carcharhinidae was developed, and for the more problematic Carcharhinus species (12 species), separation sheets based on important distinguishing features were constructed. Descriptive text and illustrations provided in the species accounts were developed from field observations, photographs, and published references. (PDF file contains 36 pages.)

燃烧物理学基础