545 research outputs found

    Multilinear Models for the Prediction of Brown Shrimp Harvest in Mississippi Waters

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    A multilinear regression analysis of water temperature, salinity, and number of postlarval brown shrimp in nursery areas was used to predict the June and July commercial harvest of brown shrimp in Mississippi waters. A total of 80.2% of the variation in harvest was accounted for by this model. When an effort variable was added to the equation, the amount of variation explained by these parameters increased to 85.4%. The coefficients of the two multilinear equations were recalculated exclusive of the data set for the last year to test the predictive capabilities of the models. For that year, the first model showed a percent error of 38.2%, and the second model, 35.3%

    Success of Juvenile Striped Bass in Two Bay Systems in Mississippi: 1980-1984

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    Success of a striped bass (Morone saxatilis, Walbaum) stocking program in the Biloxi Bay and St. Louis Bay systems in Mississippi was investigated by monitoring the occurrence of juveniles in bag seine collections in the Biloxi, Tchouticabouffa, Jourdan, and Wolf Rivers. A total of 554 juvenile striped bass were collected during the study. Hydrographic data and stomach analyses indicate that neither water conditions nor food was a limiting factor to juvenile striped bass survival. Appearance of juveniles subsequent to the stocking of Atlantic coast fry and fingerlings coupled with lateral line scale count data indicate that all juveniles collected were of Atlantic coast origin, originating from stocked fry and fingerlings

    Gaelic language erosion and revitalization on the Isle of Skye, Scotland.

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    This paper analyzes the language loss of three generations of a Gaelic-speaking family located on the Isle of Skye, Scotland. Participants' linguistic skills were assessed via language ability tests. We focused on plurals, passives, and tense, and we examined synthetic forms. The results confirmed that erosion is occurring in all areas investigated; in particular, the synthetic nature of Gaelic causes problems for younger generation speakers. This suggests weak language transmission through the generations as well as the dominance of English in the community. Through an interview with an expert informant, we also explored the implications of Gaelic education for the Gaelicspeaking community on Skye. Revitalization efforts are currently underway, but despite maintenance efforts such as Gaelic Medium Education (GME), English remains the language of the schoolchildren as well as the community at large. The authors feel that a concerted community revitalization effort is needed in congruence with the application of GME. Maintenance efforts should be directed towards sponsoring Gaelic-speaking community events so that GME students have the opportunity to speak Gaelic outside the classroom as well as experience the viability of the language for communication in different domains.Historical sociolinguistics LUC

    Barriers and facilitators to the provision of optimal obstetric and neonatal emergency care and to the implementation of simulation-enhanced mentorship in primary care facilities in Bihar, India: a qualitative study.

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    BACKGROUND: Globally, an estimated 275,000 maternal deaths, 2.7 million neonatal deaths, and 2.6 million third trimester stillbirths occurred in 2015. Major improvements could be achieved by providing effective care in low- and middle-income countries, where the majority of these deaths occur. Mentoring programs have become a popular modality to improve knowledge and skills among providers in low-resource settings. Thus, a detailed understanding of interrelated factors affecting care provision and mentorship is necessary both to improve the quality of care and to maximize the impact of mentoring programs. METHODS: In partnership with the Government of Bihar, CARE India and PRONTO International implemented simulation-enhanced mentoring in 320 primary health clinics (PHC) across the state of Bihar, India from 2015 to 2017, within the context of the AMANAT mobile nurse mentoring program. Between June and August 2016, we conducted semi-structured interviews with 20 AMANAT nurse mentors to explore barriers and facilitators to optimal care provision and to implementation of simulation-enhanced mentorship in PHCs in Bihar. Data were analyzed using the thematic content approach. RESULTS: Mentors identified numerous factors affecting care provision and mentorship, many of which were interdependent. Such barriers included human resource shortages, nurse-nurse hierarchy, distance between labor and training rooms, cultural norms, and low skill level and resistance to change among mentees. In contrast, physical resource shortages, doctor-nurse hierarchy, corruption, and violence against providers posed barriers to care provision alone. Facilitators included improved skills and confidence among providers, inclusion of doctors in training, increased training frequency, establishment of strong mentor-mentee relationships, administrative support, and nursing supervision and feedback. CONCLUSIONS: This study has identified many interrelated factors affecting care provision and mentorship in Bihar. The mentoring program was not designed to address several barriers, including resource shortages, facility infrastructure, corruption, and cultural norms. These require government support, community awareness, and other systemic changes. Programs may be adapted to address some barriers beyond knowledge and skill deficiencies, notably hierarchy, violence against providers, and certain cultural taboos. An in-depth understanding of barriers and facilitators is essential to enable the design of targeted interventions to improve maternal and neonatal survival in Bihar and related contexts

    Teratogenic and Embryocidal Effects of Zidovudine (AZT) in Sprague-Dawley Rats

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    Objective: The purpose of the present investigation was to analyze the effets of zidovudine on the postimplantation embryo and fetus
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