873 resultados para Años 60 y 70


Relevância:

80.00% 80.00%

Publicador:

Resumo:

Contiene con port. y pag. propia: Antonii Posseuini ... Cicero collatus cum ethnicis [et] sacris scriptoribus ad bibliothecam selectam auctoris pertinens ... (28 p.)

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Title varies: v.51-60 (1961-70) Nijhoff's Index op Nederlandse en Vlaamse Periodieken

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Vols. for Aug.-Sept. 1969- edited by: Chambre des notaires du Québec.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Background: Walking is integral to strategies to promote physical activity. We identified socio-demographic variations in walking for transport, and for recreation or exercise. Methods: Representative population data (n = 3392) from Australia were collected using computer assisted telephone interviewing, to examine adults’ participation in moderate- or brisk-paced walking for transport and walking for recreation or exercise; walking “sufficient” to meet the current public health guideline (> 150 min/wk); and, the contributions of total walking to meeting the guideline for total physical activity. Results: Rates of sufficient walking for transport (10% for men, 9% for women) were lower than those for walking for recreation or exercise (14% for both genders). Few socio-demographic differences emerged. Men over age 60 y were significantly less likely (OR = 0.40) to walk for transport; men age 45 to 59 y were more likely (OR = 1.56) to walk for recreation or exercise. Walking contributed more toward meeting the current public health guideline among women (15% to 21%) than among men (6% to 8%). Conclusions: There is potential for socially equitable increases in participation, through a focus on both walking for transport and on walking for recreation or exercise; attention to gender differences would be helpful.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Nas décadas de 60 e 70, os olhares de muitos estudiosos se voltaram para os aspectos positivos da vida. Diversos autores ofereceram sustentação para fortalecer uma nova perspectiva de campo científico, a Psicologia Positiva. Tendo como base teórica o conhecimento de Psicologia Positiva e Psicologia da Saúde, pesquisas estão sendo desenvolvidas para investigar simultaneamente variáveis oriundas destes domínios. Um dos temas colocado sob analise são as emoções, investigadas em diferentes contextos e no ambiente organizacional. Importante salientar a existência de outras variáveis no contexto organizacional que têm sido investigadas à luz da Psicologia Positiva, tais como otimismo, percepções de suporte social no trabalho e percepções de suporte organizacional, algumas delas reunidas para compor modelos preditivos de bem-estar no trabalho (BET), construto multidimensional composto por dois vínculos afetivos positivos com o trabalho (satisfação no trabalho e envolvimento com o trabalho) e um com a organização (comprometimento organizacional afetivo). O presente estudo teve como objetivo analisar a capacidade de predição do balanço emocional (afetos positivos/negativos), do otimismo e de percepções de suporte (social no trabalho e organizacional) sobre as três dimensões de BET. Participaram do estudo 110 agentes comunitários de saúde (ACS), prestadores de serviço de uma prefeitura municipal paulista, com idade média de 38,84 anos, sendo o grupo constituído, em sua maioria, por mulheres e por pessoas casadas. Para a coleta de dados, foi aplicado um questionário contendo sete escalas autoaplicáveis que aferiram as variáveis do estudo. A análise dos dados, todos de natureza numérica, foi desenvolvida utilizando-se subprogramas do SPSS, versão 17.0 para Windows, para cálculos de estatísticas descritivas (médias, desvios padrão e correlações) e estatísticas multivariadas (análises de regressão linear múltipla stepwise). Os resultados do estudo, no que concerne ao seu objetivo principal, que consistiu em submeter a análise um modelo preditivo para BET, demonstraram que os níveis das três dimensões de BET poderiam variar sob o impacto de três preditores: percepção de suporte organizacional, afetos positivos e percepção de suporte instrumental. Como análise geral dos três modelos de regressão calculados, seria possível afirmar que o estado geral de bem-estar dos ACS no contexto de trabalho pode ser fortalecido ou enfraquecido pela atuação de fatores cognitivos que se desenvolvem a partir de percepções da dinâmica social presente no ambiente de trabalho (percepções de suporte social e organizacional) e de um fator de cunho estritamente pessoal contido na estrutura emocional do indivíduo sob a forma de experiências afetivas e aqui referidas com afetos positivos.(AU)

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Patterns of mangrove vegetation in two distinct basins of Florida Coastal Everglades (FCE), Shark River estuary and Taylor River Slough, represent unique opportunities to test hypotheses that root dynamics respond to gradients of resources, regulators, and hydroperiod. We propose that soil total phosphorus (P) gradients in these two coastal basins of FCE cause specific patterns in belowground biomass allocation and net primary productivity that facilitate nutrient acquisition, but also minimize stress from regulators and hydroperiod in flooded soil conditions. Shark River basin has higher P and tidal hydrology with riverine mangroves, in contrast to scrub mangroves of Taylor basin with more permanent flooding and lower P across the coastal landscape. Belowground biomass (0–90 cm) of mangrove sites in Shark River and Taylor River basins ranged from 2317 to 4673 g m-2, with the highest contribution (62–85%) of roots in the shallow root zone (0–45 cm) compared to the deeper root zone (45–90 cm). Total root productivity did not vary significantly among sites and ranged from 407 to 643 g m-2 y-1. Root production in the shallow root zone accounted for 57–78% of total production. Root turnover rates ranged from 0.04 to 0.60 y-1 and consistently decreased as the root size class distribution increased from fine to coarse roots, indicating differences in root longevity. Fine root biomass was negatively correlated with soil P density and frequency of inundation, whereas fine root turnover decreased with increasing soil N:P ratios. Lower P availability in Taylor River basin relative to Shark River basin, along with higher regulator and hydroperiod stress, confirms our hypothesis that interactions of stress from resource limitation and long duration of hydroperiod account for higher fine root biomass along with lower fine root production and turnover. Because fine root production and organic matter accumulation are the primary processes controlling soil formation and accretion in scrub mangrove forests, root dynamics in the P-limited carbonate ecosystem of south Florida have a major controlling role as to how mangroves respond to future impacts of sealevel rise.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

This study investigated the impacts of acidified seawater (pCO2 900 µatm) and elevated water temperature (+3 °C) on the early life history stages of Acropora spicifera from the subtropical Houtman Abrolhos Islands (28°S) in Western Australia. Settlement rates were unaffected by high temperature (27 °C, 250 µatm), high pCO2 (24 °C, 900 µatm), or a combination of both high temperature and high pCO2 treatments (27 °C, 900 µatm). There were also no significant differences in rates of post-settlement survival after 4 weeks of exposure between any of the treatments, with survival ranging from 60 to 70 % regardless of treatment. Similarly, calcification, as determined by the skeletal weight of recruits, was unaffected by an increase in water temperature under both ambient and high pCO2 conditions. In contrast, high pCO2 significantly reduced early skeletal development, with mean skeletal weight in the high pCO2 and combined treatments reduced by 60 and 48 %, respectively, compared to control weights. Elevated temperature appeared to have a partially mitigative effect on calcification under high pCO2; however, this effect was not significant. Our results show that rates of settlement, post-settlement survival, and calcification in subtropical corals are relatively resilient to increases in temperature. This is in marked contrast to the sensitivity to temperature reported for the majority of tropical larvae and recruits in the literature. The subtropical corals in this study appear able to withstand an increase in temperature of 3 °C above ambient, indicating that they may have a wider thermal tolerance range and may not be adversely affected by initial increases in water temperature from subtropical 24 to 27 °C. However, the reduction in skeletal weight with high pCO2 indicates that early skeletal formation will be highly vulnerable to the changes in ocean pCO2 expected to occur over the twenty-first century, with implications for their longer-term growth and resilience.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Sites 1033 and 1034 of ODP Leg 169S in Saanich Inlet have an unusual diagenetic system, that has the appearance of being depth reversed, i.e. a bacterial methane accumulation zone underlain by a sulphate reduction zone. During the late Pleistocene grey, undifferentiated, glacio-marine clays were deposited with low Corg contents (<0.4 wt.%), and interstitial fluids replete in SO4 (ca. 27 mM), devoid of CH4 and low in nutrients. This indicates oxic conditions are present, reflecting the open exchange of waters with Haro Strait during the Pleistocene before the Saanich Peninsula emerged. In the earliest Holocene (ca. 11,000 years BP) the inlet was formed, severely restricting water circulation, and leading to the presence of anoxic bottom waters. The sediments are laminated and show a dramatic rise to high Corg, Norg and Stot contents (up to 2.5, 0.4, 1.4 wt.%, respectively) over a period of ca. 1000 years. The nutrient concentrations are especially high (TA, NH4, PO4 up to 115 meq/l, 20 mM and 400 µM, respectively), SO4 is exhausted and CH4 is prolific. Stable carbon isotope ratio measurements of CH4 and co-existing CO2 indicate that methanogenesis is via carbonate reduction (delta13C-CH4 ca. -60 to - 70 per mil, delta13C-CO2 ca. +10 per mil). At the sulphate-methane interfaces, both at the near-surface and at 50 mbsf (Site 1033) and 80 mbsf (Site 1034) methane consumption by sulphate reducing bacteria is intensive.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

SYSTEMATIC REVIEW AND META-ANALYSIS: EFFECTS OF WALKING EXERCISE IN CHRONIC MUSCULOSKELETAL PAIN O'Connor S.R.1, Tully M.A.2, Ryan B.3, Baxter D.G.3, Bradley J.M.1, McDonough S.M.11University of Ulster, Health & Rehabilitation Sciences Research Institute, Newtownabbey, United Kingdom, 2Queen's University, UKCRC Centre of Excellence for Public Health (NI), Belfast, United Kingdom, 3University of Otago, Centre for Physiotherapy Research, Dunedin, New ZealandPurpose: To examine the effects of walking exercise on pain and self-reported function in adults with chronic musculoskeletal pain.Relevance: Chronic musculoskeletal pain is a major cause of morbidity, exerting a substantial influence on long-term health status and overall quality of life. Current treatment recommendations advocate various aerobic exercise interventions for such conditions. Walking may represent an ideal form of exercise due to its relatively low impact. However, there is currently limited evidence for its effectiveness.Participants: Not applicable.Methods: A comprehensive search strategy was undertaken by two independent reviewers according to the preferred reporting items for systematic reviews and meta-analyses (PRISMA) and the recommendations of the Cochrane Musculoskeletal Review Group. Six electronic databases (Medline, CINAHL, PsychINFO, PEDro, Sport DISCUS and the Cochrane Central Register of Controlled Trials) were searched for relevant papers published up to January 2010 using MeSH terms. All randomised or non-randomised studies published in full were considered for inclusion. Studies were required to include adults aged 18 years or over with a diagnosis of chronic low back pain, osteoarthritis or fibromyalgia. Studies were excluded if they involved peri-operative or post-operative interventions or did not include a comparative, non exercise or non-walking exercise control group. The U.S. Preventative Services Task Force system was used to assess methodological quality. Data for pain and self-reported function were extracted and converted to a score out of 100.Analysis: Data were pooled and analyzed using RevMan (v.5.0.24). Statistical heterogeneity was assessed using the X2 and I2 test statistics. A random effects model was used to calculate the mean differences and 95% CIs. Data were analyzed by length of final follow-up which was categorized as short (≤8 weeks post randomisation), mid (2-12 months) or long-term (>12 months).Results: A total of 4324 articles were identified and twenty studies (1852 participants) meeting the inclusion criteria were included in the review. Overall, studies were judged to be of at least fair methodological quality. The most common sources of likely bias were identified as lack of concealed allocation and failure to adequately address incomplete data. Data from 12 studies were suitable for meta-analysis. Walking led to reductions in pain at short (<8 weeks post randomisation) (-8.44 [-14.54, -2.33]) and mid-term (>8 weeks - 12 month) follow-up (-9.28 [-16.34, -2.22]). No effect was observed for long-term (>12 month) data (-2.49 [-7.62, 2.65]). For function, between group differences were observed for short (-11.57 [-16.06, -7.08]) and mid-term data (-13.26 [-16.91, -9.62]). A smaller effect was also observed at long-term follow-up (-5.60 [-7.70, -3.50]).Conclusions: Walking interventions were associated with statistically significant improvements in pain and function at short and mid-term follow-up. Long-term data were limited but indicated that these effects do not appear to be maintained beyond twelve months.Implications: Walking may be an effective form of exercise for individuals with chronic musculoskeletal pain. However, further research is required which examines longer term follow-up and dose-response issues in this population.Key-words: 1. Walking exercise 2. Musculoskeletal pain 3. Systematic reviewFunding acknowledgements: Department of Employment and Learning, Northern Ireland.Ethics approval: Not applicable.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

O Serviço Social Escolar é um campo de acção que ao longo de quase 40 anos tem uma trajectória significativa, tendo sofrido algumas vicissitudes no seu percurso influenciado pelo contexto social político e económico e pelas relações Estado/Mercado. Este estudo vai no sentido de fazer uma análise ao processo de institucionalização do Serviço Social Escolar em Portugal nas décadas de 60 e 70, em que se privilegiam as trajectórias e dinâmicas da prática profissional das Assistentes Sociais na área da Educação, ao nível dos ensinos primários, preparatórios e secundários, e mais especificamente da prática profissional das Assistentes Sociais do Ministério da Educação, da Zona Centro do País. Está dividido em duas partes fundamentais, acompanhando a primeira de1960 até 1974 e a segunda parte após o período da Revolução de 25 de Abril de 1974 até ao período de Normalização Democrática de 1976 a 1980. Procura-se apreender e compreender a relação entre o Serviço Social, políticas sociais, de acção social escolar, a sociedade portuguesa, as correntes de pensamento e as influências que se fizeram sentir no Serviço Social Escolar, identificando problemas e posicionamentos das Assistentes Sociais na dinâmica sócio-histórico e no Instituto de Acção Social Escolar, nos períodos em análise. Com este trabalho pretende-se abrir o debate sobre este campo de acção na actualidade e restituir ao Serviço Social Escolar o papel fundamental de mediador nos processos de regulação no campo da educação, num trabalho em parceria e numa transversalidade de competências e saberes com todos os parceiros da comunidade educativa e com a sociedade em geral, na defesa pelos direitos humanos e ampliação do estatuto de cidadania, por uma escola para todos e de qualidade.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

The thermodynamic properties of anchovy fillets and enzymatic modified pastes in two hydrolysis degrees (3% HD and 14% HD), at 50, 60 and 70 C were evaluated. The GAB model was used to calculate the values of the monolayer moisture content and the thermodynamic properties of the samples. The enzymatic modification led to the increases of the superficial area and differential enthalpies, and decrease of the differential entropies in relation the samples in natura. The enthalpy–entropy compensation showed that the process was controlled by the enthalpy, it was only spontaneous for the samples in natura. Pore size decreased with enzymatic modification, and all samples were in the limit of region between micropores and mesopores (<2 nm) for moisture content of 15%, and mesopores (from 2 to 50 nm) to moisture content above 15%.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Introduction. The authors consider the type and the incidence of the adverse effects due to the interaction between ophthalmic drugs and general anaesthesia in pediatric ophthalmic surgery. Patients and Methods. The experience included 176 general anaesthesia in 100 children aged between 9,2 months and 11,4 years (mean age 4,9 years). Results. In the 100 patients we reported: 4 cases (2.7% general anaesthesias) of sinus tachycardia with heart rhythm varying between 170 and 180 beats per minute (3.6%); 5 cases of sinus bradycardia, varying between 60 and 70 beats per minute (3.3%); 3 cases of bronchospasm (2%); 2 cases of psychomotor agitation/disturbances in pre-convulsive state after anaesthesia (1.3%); 3 cases of arterial hypotension (60-70 mmHg) (2%); 7 cases of skin rush around neck and chest (4.6%); 1 case of prolonged apnoea (0.6%). Conclusions. The clinical manifestations, principally on the cardio-circulatory and nervous system are subjected to critical revision, to foresee the pharmacological interferences and therefore to prepare the necessary measure of medical treatment.

Relevância:

80.00% 80.00%

Publicador:

Resumo:

In the mid-1980s, the magazine Projeto published the Actual Brazilian Architecture catalogue presenting texts by Hugo Segawa and Ruth Verde Zein with a corpus of works and engaged architects of the 1960s and 1970s. To comprehend the Brazilian architectural production post-1964, in those years of the 1980s, became a significant mission to reactivate the Brazilian architectural debate weakened by the military dictatorship. In his doctoral thesis Spadoni (2003) deals with the different ways which characterizes the Brazilian architectural production of the 1970s. Marked by inventiveness, this production was in tune with the modern thinking and in the transition period between the 1970s and the 1980s it synchronized with the international debate about post-modern architecture. Considering Spadoni s doctoral thesis, this work deals with the modern experience observed in the one-family-houses built in the seventies in João Pessoa. Some modern experiences were not clear outside, to observe it, it was necessary to search for the type of experience into the spatial disposition and of the know-how constructive, because into the appearance some houses not make explicit the use of the modern language. Other observed experiences allude to the repertoire of the Brazilian period in the years 1940s-1960s, to the experience of the modern architecture in São Paulo of the 1960s, to the experiences in which the climate of the Northeastern region strongly influenced the architectural conception. We can also find in a reduced number of houses a particular experience: it refers to experiences that expose the constructive doing, which leave the material apparent and apply to the residential type the experience of the industrial pre-fabricated buildings

Relevância:

80.00% 80.00%

Publicador:

Resumo:

Introducción: Determinar la eficacia de la administración preincisional de ropivacaína al 0,1 % intraperitoneal en el control del dolor abdominal y/o de hombro, durante la primera semana de la cirugía laparoscópica ginecológica benigna. Diseño: Ensayo clínico aleatorizado y doble ciego. Material y métodos: Se realizó un ensayo clínico aleatorizado y doble ciego donde participaron 64 pacientes ASA I-III sometidas a cirugía laparoscópica ginecológica por patología benigna. Tras la realización del neumoperitoneo, se administraron 100 ml de ropivacaína 0,1 % o suero fisiológico intraperitoneal, dependiendo del grupo al que pertenecieran. Las pacientes recibieron, además, AINE junto con una bomba de PCA con opción de morfina de rescate como analgesia multimodal asociada. Se evaluó el dolor abdominal y/o de hombro al despertar, en reposo y en movimiento, a los 5, 30, 60 y 120 minutos, así como a las 24 horas. Se registró el consumo de morfina en las primeras 24 horas y la incidencia de náuseas y/o vómitos postoperatorios. A la semana, mediante encuesta telefónica, se registró la presencia de dolor de hombro a partir de las 24 horas, así como de dolor abdominal persistente al 7º día. Resultados: No se observaron diferencias significativas en el ENV durante las primeras 24 horas. Tampoco se observaron diferencias en el consumo de morfina, en la incidencia de náuseas y/o vómitos o en el dolor de hombro. Se evidenciaron diferencias estadísticamente significativas en la incidencia de dolor abdominal persistente al 7º día (18,52 % en grupo tratamiento vs. 57,58 % en grupo control con p = 0,04). Conclusiones: La administración intraperitoneal preincisional de 100 ml de ropivacaína 0,1 % en comparación con la administración de suero fisiológico, en el contexto de una técnica anestésica y analgésica multimodal, no ha demostrado reducir el dolor postoperatorio, el consumo de opioides ni la incidencia de náuseas y vómitos postoperatorios en las primeras 24 horas. Tampoco ha demostrado reducción del dolor de hombro a partir del primer día tras cirugía laparoscópica ginecológica. El uso de ropivacaína al 0,1 % intraperitoneal preincisional presenta una disminución estadísticamente significativa en la incidencia de dolor abdominal persistente al séptimo día de postoperatorio.