Operatividad, dimensionamiento y respuesta selectiva de las redes chinchorro mecanizado en la zona sur del Perú

Desarrolla información sobre las características funcionales y operacionales de las embarcaciones y equipos que intervienen en las actividades extractivas con chinchorro mecanizado, cuya investigación se centró en la costa sur del Perú, abarcando las playas de Tacna, Mollendo, Camaná y Lomas. Presenta información de levantamiento de planos técnicos, características de armado y diseño de las redes empleadas por los pescadoras de la zona, identifica las zonas de pesca (caladeros) y cuantifica el rendimiento de pesca absoluto y relativo en las operaciones de pesca.

The karyotype of Crocidura flavescens (Mammalia, Insectivora) in South Africa

Karyological results give evidence that the South African Crocidura flavescens (Geoffroy, 1827) is not conspecific with the West and East African giant shrews of the taxa spurrelli, manni, kivu and olivieri

Arthropods associated with pig carrion in two vegetation profiles of Cerrado in the State of Minas Gerais, Brazil

Forensic Entomology research has been concentrated in only a few localities of the "Cerrado" vegetation, the Brazilian Savannah. The present study had, as its objective, an examination of the diversity of arthropod fauna associated with the carcasses of Sus scrofa (Linnaeus) in this biome. The study was conducted during the dry and humid periods in two Cerrado vegetation profiles of the State of Minas Gerais. The decaying process was slower and greater quantities of arthropods were collected during the dry period. Insects represented 99% of 161,116 arthropods collected. The majority of these were Diptera (80.2%) and Coleoptera (8.8%). The entomofauna belong to 85 families and at least 212 species. Diptera were represented by 31 families and at least 132 species. Sarcophagidae (Diptera) and Scarabaeidae (Coleoptera) were the richest groups. Oxysarcodexia (Sarcophagidae) presented the largest number of attracted species, however none of these species bred in the carcasses. The Coleoptera collected belong to at least 50 species of 21 families. Among these species, Dermestes maculatus and Necrobia rufipes were observed breeding in the carcasses. This study showed species with potential importance for estimating the postmortem interval (PMI), indicative of seasonal and environmental type located.

Examining non-response bias in substance use research-Are late respondents proxies for non-respondents?

BACKGROUND: Non-response is a major concern among substance use epidemiologists. When differences exist between respondents and non-respondents, survey estimates may be biased. Therefore, researchers have developed time-consuming strategies to convert non-respondents to respondents. The present study examines whether late respondents (converted former non-participants) differ from early respondents, non-consenters or silent refusers (consent givers but non-participants) in a cohort study, and whether non-response bias can be reduced by converting former non-respondents. METHODS: 6099 French- and 5720 German-speaking Swiss 20-year-old males (more than 94% of the source population) completed a short questionnaire on substance use outcomes and socio-demographics, independent of any further participation in a cohort study. Early respondents were those participating in the cohort study after standard recruitment procedures. Late respondents were non-respondents that were converted through individual encouraging telephone contact. Early respondents, non-consenters and silent refusers were compared to late respondents using logistic regressions. Relative non-response biases for early respondents only, for respondents only (early and late) and for consenters (respondents and silent refusers) were also computed. RESULTS: Late respondents showed generally higher patterns of substance use than did early respondents, but lower patterns than did non-consenters and silent refusers. Converting initial non-respondents to respondents reduced the non-response bias, which might be further reduced if silent refusers were converted to respondents. CONCLUSION: Efforts to convert refusers are effective in reducing non-response bias. However, converted late respondents cannot be seen as proxies of non-respondents, and are at best only indicative of existing response bias due to persistent non-respondents.

O mercado de Obrigações Corporate em Cabo Verde, potencialidades de crescimento e desenvolvimento. Estudo de Caso: Empréstimo Obrigacionista da ASA – Aeroportos e Segurança Aérea, SA

As obrigações constituem uma das formas de eleição de financiamento para as empresas e são um dos instrumentos financeiros mais utilizados em todo o mundo. Destacam-se, como um dos produtos financeiros privilegiados para investidores conservadores visto que, asseguram contratualmente, a data do pagamento dos juros e do reembolso do empréstimo além do montante dos juros, tratando-se neste caso da modalidade de taxa fixa. Até ao momento, três empresas emitiram Obrigações em Cabo Verde. Electra, Empresa Nacional de Electricidade e Água, SARL, Tecnicil, Sociedade de Imobiliária e Construções, SA e ASA, Empresa Nacional de Aeroportos e Segurança Aérea, SA.

Comment on recent modeling studies of astrocyte-neuron metabolic interactions.

Recent years have seen a surge in mathematical modeling of the various aspects of neuron-astrocyte interactions, and the field of brain energy metabolism is no exception in that regard. Despite the advent of biophysical models in the field, the long-lasting debate on the role of lactate in brain energy metabolism is still unresolved. Quite the contrary, it has been ported to the world of differential equations. Here, we summarize the present state of this discussion from the modeler's point of view and bring some crucial points to the attention of the non-mathematically proficient reader.

Carte de la Palestine ou Terre Sainte / dressée par Pierre Tardieu

Échelle(s) : [ca 1:563 000], échelle 30 milles romains de 70 au degré [= 7,9 cm]

Informe estadístico anual de los recursos hidrobiologicos de la pesca artesanal por especies, artes, caletas y meses durante 1997.

Presenta las estadísticas de recursos hidrobiológicos tomadas en 34 caletas / puertos distribuidos a lo largo del litoral.

Distribución, concentración y biomasa de la Merluza Peruana en otoño de 1997 con el método hidroacústico. Crucero BIC Humboldt 9705-06

Resultados de la evaluación de la biomasa de merluza peruana (Merluccius gayi peruanus), con el método hidroacústico. La evaluación comprendió desde el Callao hasta la frontera norte y desde las 20 bz hasta más de 300 bz de profundidad. La biomasa fue estimada en 256.809 t, ± 15,8%. La densidad media global fue de 13,9 t/mn2. Se presentan cartas de distribución y concentración del recurso y se discuten posibles fuentes de error.

Hazardous substances in frequently used professional cleaning products.

A growing number of studies have identified cleaners as a group at risk for adverse health effects of the skin and the respiratory tract. Chemical substances present in cleaning products could be responsible for these effects. Currently, only limited information is available about irritant and health hazardous chemical substances found in cleaning products. We hypothesized that chemical substances present in cleaning products are known health hazardous substances that might be involved in adverse health effects of the skin and the respiratory tract. We performed a systematic review of cleaning products used in the Swiss cleaning sector. We surveyed Swiss professional cleaning companies (n = 1476) to identify the most used products (n = 105) for inclusion. Safety data sheets (SDSs) were reviewed and hazardous substances present in cleaning products were tabulated with current European and global harmonized system hazard labels. Professional cleaning products are mixtures of substances (arithmetic mean 3.5 +/- 2.8), and more than 132 different chemical substances were identified in 105 products. The main groups of chemicals were fragrances, glycol ethers, surfactants, solvents; and to a lesser extent, phosphates, salts, detergents, pH-stabilizers, acids, and bases. Up to 75% of products contained irritant (Xi), 64% harmful (Xn) and 28% corrosive (C) labeled substances. Hazards for eyes (59%) and skin (50%), and hazards by ingestion (60%) were the most reported. Cleaning products potentially give rise to simultaneous exposures to different chemical substances. As professional cleaners represent a large workforce, and cleaning products are widely used, it is a major public health issue to better understand these exposures. The list of substances provided in this study contains important information for future occupational exposure assessment studies.

Acute neurorehabilitation: does a neurosensory and coordinated interdisciplinary programme reduce tracheostomy weaning time and weaning failure?

BACKGROUND/PURPOSE: A new coordinated interdisciplinary unit was created in the acute section of the department of clinical neurosciences, the Acute NeuroRehabilitation (NRA) unit. The objective was to evaluate the impact of the unit and its neurosensory programme on the management of tracheostomy patients in terms of reduction in the average time taken for weaning, weaning success rate and therapeutic efficiency. METHODS: This 49-month retrospective study compares 2 groups of tracheostomy patients before (n = 34) and after (n = 46) NRA intervention. The outcome measures evaluate the benefits of the NRA unit intervention (time to decannulation, weaning and complication rates) and the benefits of the coordination (time to registration in a rehabilitation centre and rate of non-compliance with standards of care). RESULTS: Weaning failure rate was reduced from 27.3% to 9.1%, no complications or recannulations were observed in the post-intervention group after weaning and time to decannulation following admission to our unit decreased from 19.13 to 12.75 days. The rate of non-compliance with patient standards of care was significantly reduced from 45% to 30% (Mann-Whitney p = 0.003). DISCUSSION/CONCLUSIONS: This interdisciplinary weaning programme helped to reduce weaning time and weaning failure, without increased complications, in the sample studied. Coordination improved the efficiency of the interdisciplinary team in the multiplicity and complexity of the different treatments.

Quinto crucero del barco de exploración científica Profesor Mesiatsev (Vniro) (9-27 Marzo 1973). Informe sobre los trabajos científico-pesqueros en las aguas adyacentes a la costa del Perú

Brinda información sobre los resultados del crucero realizado el 6 al 29 de marzo en el Callao. Los objetivos fueron además de la pesca y su congelación, la detección de las concentraciones de peces con la ayuda de ecosondas y arrastres de prueba, se tomo muestras del fondo y del agua, colección de peces y elaboración de muestras en conserva para consumo humano.