1000 resultados para 611.92


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Providing price incentives to farmers is usually considered essential for agricultural development. Although such incentives are important, regarding price as the sole explanatory factor is far from satisfactory in understanding the complex realities of agricultural production in Africa. By analyzing the share contracts widely practiced in Ghana, this article argues that local institutions such as land tenure systems and agrarian contracts provide strong incentives and disincentives for agricultural production. Based on data derived from fieldwork in the 1990s, the study analyzes two types of share contracts and the incentive structures embedded in them. The analysis reveals that farmers' investment behavior needs to be understood in terms of both short-term incentive to increase yield and long-term incentive to strengthen land rights. The study concludes that the role of price incentives in agricultural production needs to be reconsidered by placing it in wider incentive structures embedded in local institutions.

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コンゴ共和国では、1980年代以降深刻な不況が継続する一方、首都ブラザヴィルの人口規模が急速に拡大してきた。それに伴う農村の衰退を指摘する研究が多いが、本稿では都市向け食糧生産の拡大によって著しい拡大を遂げた農村地域の事例を紹介し、近年になって浮上してきた生産ボトルネックについて検討する。ブラザヴィル近郊の農村地域では1980年代頃から都市居住者の入植が進み、隣国ザイールからの移住労働者を利用して、都市向けキャッサバ生産が活発に行われるようになった。しかし、近年耕作地の不足に直面すると、コンゴ人とザイール人、またコンゴ人の中でもエスニック集団によって、土地利用権の制限を行う動きが生じてきた。土地余剰状況の中で移民労働者を利用して拡大を続けてきた都市向けキャッサバ生産は、土地制約の中で岐路に立たされている。

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Glückwünsche zum 70. Geburtstag (Gedicht)

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Is oral health becoming a part of the global health culture? Oral health seems to turn out to be part of the global health culture, according to the findings of a thesis-research, Institute of Dentistry, University of Helsinki. The thesis is entitled as “Preadolescents and Their Mothers as Oral Health-Promoting Actors: Non-biologic Determinants of Oral Health among Turkish and Finnish Preadolescents.” The research was supervised by Prof.Murtomaa and led by Dr.A.Basak Cinar. It was conducted as a cross-sectional study of 611 Turkish and 223 Finnish school preadolescents in Istanbul and Helsinki, from the fourth, fifth, and sixth grades, aged 10 to 12, based on self-administered and pre-tested health behavior questionnaires for them and their mothers as well as the youth’s oral health records. Clinically assessed dental status (DMFT) and self-reported oral health of Turkish preadolescents was significantly poorer than the Finns`. A similar association occurred for well-being measures (height and weight, self-esteem), but not for school performance. Turkish preadolescents were more dentally anxious and reported lower mean values of toothbrushing self-efficacy and dietary self-efficacy than did Finns. The Turks less frequently reported recommended oral health behaviors (twice daily or more toothbrushing, sweet consumption on 2 days or less/week, decreased between-meal sweet consumption) than did the Finns. Turkish mothers reported less frequently dental health as being above average and recommended oral health behaviors as well as regular dental visits. Their mean values for dental anxiety was higher and self-efficacy on implementation of twice-daily toothbrushing were lower than those of the Finnish. Despite these differences between the Turks and Finns, the associations found in common for all preadolescents, regardless of cultural differences and different oral health care systems, assessed for the first time in a holistic framework, were as follows: There seems to be interrelation between oral health and general-well being (body height-weight measures, school performance, and self-esteem) among preadolescents: • The body height was an explanatory factor for dental health, underlining the possible common life-course factors for dental health and general well-being. • Better school performance, high levels of self-esteem and self-efficacy were interrelated and they contributed to good oral health. • Good school performance was a common predictor for twice-daily toothbrushing. Self-efficacy and maternal modelling have significant role for maintenance and improvement of both oral- and general health- related behaviors. In addition, there is need for integration of self-efficacy based approaches to promote better oral health. • All preadolescents with high levels of self-efficacy were more likely to report more frequent twice-daily toothbrushing and less frequent sweet consumption. • All preadolescents were likely to imitate toothbrushing and sweet consumption behaviors of their mothers. • High levels of self-efficacy contributed to low dental anxiety in various patterns in both groups. As a conclusion: • Many health-detrimental behaviors arise from the school age years and are unlikely to change later. Schools have powerful influences on children’s development and well-being. Therefore, oral health promotion in schools should be integrated into general health promotion, school curricula, and other activities. • Health promotion messages should be reinforced in schools, enabling children and their families to develop lifelong sustainable positive health-related skills (self-esteem, self-efficacy) and behaviors. • Placing more emphasis on behavioral sciences, preventive approaches, and community-based education during undergraduate studies should encourage social responsibility and health-promoting roles among dentists. Attempts to increase general well-being and to reduce oral health inequalities among preadolescents will remain unsuccessful if the individual factors, as well as maternal and societal influences, are not considered by psycho-social holistic approaches.

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Background There has been considerable publicity regarding population ageing and hospital emergency department (ED) overcrowding. Our study aims to investigate impact of one intervention piloted in Queensland Australia, the Hospital in the Nursing Home (HiNH) program, on reducing ED and hospital attendances from residential aged care facilities (RACFs). Methods A quasi-experimental study was conducted at an intervention hospital undertaking the program and a control hospital with normal practice. Routine Queensland health information system data were extracted for analysis. Results Significant reductions in the number of ED presentations per 1000 RACF beds (rate ratio (95 % CI): 0.78 (0.67–0.92); p = 0.002), number of hospital admissions per 1000 RACF beds (0.62 (0.50–0.76); p < 0.0001), and number of hospital admissions per 100 ED presentations (0.61 (0.43–0.85); p = 0.004) were noticed in the experimental hospital after the intervention; while there were no significant differences between intervention and control hospitals before the intervention. Pre-test and post-test comparison in the intervention hospital also presented significant decreases in ED presentation rate (0.75 (0.65–0.86); p < 0.0001) and hospital admission rate per RACF bed (0.66 (0.54–0.79); p < 0.0001), and a non-significant reduction in hospital admission rate per ED presentation (0.82 (0.61–1.11); p = 0.196). Conclusions Hospital in the Nursing Home program could be effective in reducing ED presentations and hospital admissions from RACF residents. Implementation of the program across a variety of settings is preferred to fully assess the ongoing benefits for patients and any possible cost-savings.

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We have employed the highly sensitive electron magnetic resonance technique complimented by magnetization measurements to study the impact of size reduction on the magnetic ordering in nanosized Sm1-x Ca (x) MnO3 (x = 0.35, 0.65 and 0.92). In the bulk form, x = 0.35 sample shows a charge ordering transition at 235 K followed by a mixed magnetic phase, the sample with x = 0.65 exhibits charge order below 275 K and shows an antiferromagnetic insulator phase below 135 K while that with x = 0.92 has a ferromagnetic-cluster glass ground state. Thus, a comparative study of magnetic ground states of bulk and nanoparticles (diameter similar to 25 nm) enables us to investigate size-induced effects on different types of magnetic ordering. It is seen that in the bulk samples the temperature dependences of the EPR parameters are quite different from each other. This difference diminishes for the nanosamples where all the three samples show qualitatively similar behavior. The magnetization measurements corroborate this conclusion.

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Con el objetivo de evaluar 112 líneas de Arroz de porte semienano, procedentes en su mayoría de Colombia, Vivero IRRI (IIRON), Argentina, Cuba y Perú, y utilizando como testigos internacionales las variedades CICA-8 y ORYZICA-1 y como testigos locales las variedades ALTAM1RA-9, ALTAM1RA-10 y CICA-8 también considerada como testigo local, se llevó a cabo un estudio en la "Finca Venllano", ubicada en Malacatoya, municipio del departamento de Granada, bajo el agroecosistema de riego. A cada línea se le evalúo las características agronómicas (floración, altura, desgrane, senescencia, exerción, acame y aceptabilidad fenotípica) y los componentes del rendimiento ( long de panícula, número de granos por panícula, porcentaje de fertilidad, peso de 1000 granos, rendimiento y rendimiento industrial ( % de arroz integral, % de arroz pulido y % de arroz oro). Se seleccionaron 15 líneas por sus características agronómicas y su potencial de rendimiento, lo que da un 13% de selección del material evaluado. La línea de mejor rendimiento fue la 113 (ECIA 561 con 5980 Kg/ha y la de menor rendimiento fue la línea 30 (CT9508-48-1-1P-2PT) con 3195 Kg/ha. El material de mejor calidad industrial fue la línea 10 (CT8837-1-17-1P-4) con 58.5 % de Arroz Oro y la línea más baja fue la 41 (CT7B05-17-4A-M-4P) con 48.0 % de Arroz Oro.

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Contenido: El orden esencial y la inteligencia / Octavio N. Derisi – Las relaciones entre la ciencia y la filosofía / Juan A. Casaubón – Continuidad de la materia y participación / J. E. Bolzán -- Notas y comentarios -- Bibliografía

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Coletânea de discursos e debates realizados no âmbito da Câmara dos Deputados sobre diferentes temas relacionados ao meio ambiente.

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Torna pública a data e os locais de realização das provas de Língua Portuguesa e Legislação para o cargo de Agente de Segurança Legislativa, e a data e local de realização das provas de Conhecimentos Específicos, Língua Portuguesa e Legislação para o cargo de Operador de Máquinas.

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Ainda não há acordo sobre a votação da anistia aos microempresários. Diante disso a votação do tema segue indefinida. O plenário retomou a votação das disposições transitórias, votando temas que já foram acordados entre as lideranças. A votação sobre a anistia aos micros e pequenos empresários urbanos e aos pequenos e médios empresários rurais continua em impasse. O texto prevê o não pagamento da correção monetária dos empréstimos concedidos aos microempresários na época do Plano Cruzado. O governo alega que a anistia prejudicaria os bancos e provocaria o aumento dos impostos. A negociação entre governo e os constituintes já dura mais de uma semana A expectativa é que ocorra um entendimento para que haja justiça aos microempresários prejudicados. Havendo um acordo pode-se mudar radicalmente o previsto na emenda da anistia.