Prevalência e conhecimento do uso de protetores bucais personalizados em praticantes de esportes / Prevalence and knowledge of the use of personalized mouth protectors in sports practitioners

Objetivo: descrever a prevalência e os conhecimentos sobre o uso de protetores bucais personalizados (PBP) por atletas e professores. Métodos: estudo transversal descritivo realizado em 2016 no município de Piratini, RS. Os participantes eram atletas e professores de escolas e centros de treinamento. Foram coletados dados socioeconômicos, sobre conhecimentos, práticas, experiências e uso de PBP. Os dados foram analisados de forma descritiva com o programa EpiData Analysis, V2.2.3.187. Resultados: a amostra foi composta por 40 atletas e 7 professores, com idades entre 17 e 45 anos. A prevalência do uso de PBP entre os atletas foi de 32,5% (13) e 55% (22) não tinham conhecimento sobre PBP. Além disso, 77,5% (31) dos atletas e 100% (7) dos professores não saberiam indicar um profissional para confeccioná-los. Conclusão: o conhecimento sobre o uso de PBP é escasso, mas, contudo, há uma parcela de atletas que faz uso para a prática de esportes. Destaca-se a importância da necessidade de se investir em políticas de educação em saúde sobre protetores bucais em escolas, academias e centros de treinamento esportivo.(AU)

Objective: to describe the prevalence and knowledge about the use of personalized mouth protectors (PMP) by athletes and teachers. Methods: cross-sectional descriptive study carried out in 2016 in the Piratini/RS city. Participants were athletes and teachers from school and training centers. Socioeconomic data, knowledge, practices, experiences and use of PMP were collected. Data were analyzed in a descriptive with the EpiData Analysis program V2.2.3.187. Results: the sample consisted of 40 athletes and 7 teachers, aged between 17 and 45 years. The prevalence of PMP use among athletes was 32.5% (13) and 55% (22) were not knowledge of PMP. In addition, 77.5% (31) of the athletes and 100% (7) of the teachers did not know to indicate a professional to make them. Conclusion: the knowledge about the use of PMP is scarce and on the other hand, there is a portion of athletes that makes use for the practice of sports. It is important to emphasize the need to invest in health education policies on mouth protectors in schools, gyms and sports training centers.(AU)

International note: temperament and character's relationship to subjective well-being in Salvadorian adolescents and young adults.

The present study investigated the relationship between personality and Subjective Well-Being in a sample of 135 Salvadorian adolescents and young adults (age mean = 21.88 sd. = 4.70). Personality was assessed through self-reports using the Temperament and Character Inventory-Revised. Subjective Well-Being was also self-reported using the Positive Affect Negative Affect Schedule and the Satisfaction With Life Scale. Structural equation modeling was used to determine relationships between personality and Subjective Well-Being. Regarding temperament dimensions, Harm Avoidance was positively associated to negative affect and negatively associated to positive affect, while Persistence was positively associated to positive affect. Regarding character dimensions, only Self-directedness was related to Subjective Well-Being: positively related to life satisfaction and positive affect. The results presented here mirror findings using the temperament and character model of personality among European and North American adolescents.

Free-running circadian rhythms of muscle strength, reaction time, and body temperature in totally blind people.

Light is the major synchronizer of circadian rhythms. In the absence of light, as for totally blind people, some variables, such as body temperature, have an endogenous period that is longer than 24 h and tend to be free running. However, the circadian rhythm of muscle strength and reaction time in totally blind people has not been defined in the literature. The objective of this study was to determine the period of the endogenous circadian rhythm of the isometric and isokinetic contraction strength and simple reaction time of totally blind people. The study included six totally blind people with free-running circadian rhythms and four sighted people (control group). Although the control group required only a single session to determine the circadian rhythm, the blind people required three sessions to determine the endogenous period. In each session, isometric strength, isokinetic strength, reaction time, and body temperature were collected six different times a day with an interval of at least 8 h. The control group had better performance for strength and reaction time in the afternoon. For the blind, this performance became delayed throughout the day. Therefore, we conclude that the circadian rhythms of strength and simple reaction time of totally blind people are within their free-running periods. For some professionals, like the blind paralympic athletes, activities that require large physiological capacities in which the maximum stimulus should match the ideal time of competition may result in the blind athletes falling short of their expected performance under this free-running condition.

The role of ß-bulky substituents in aldol reactions of boron enolates of methylketones with aldehydes: experimental and theoretical studies by DFT analysis.

In this work, we show the influence of the volume of the ß-substituents on the levels of 1,5-stereoselectivities of aldol reactions of boron enolates generated from ß-alkoxy methylketones with aldehydes. Excellent levels of 1,5-syn stereoinduction were obtained when the ß-protecting group is a silicon ether. This remarkable selectivity is attributed to the volume of the ß-bulky substituent of the corresponding boron enolate. We have investigated a stereochemical model using DFT analysis to rationalize the sense of 1,5-syn stereoselectivities of ß-alkyl-ß-alkoxy methylketones.

Thermal stress related with mortality rates on broilers' preslaughter operations: a lairage time effect study / Estresse térmico relacionado com taxas de mortalidade durante as operações pré-abate de frangos de corte: um estudo sobre os efeitos do tempo de espera

Concerning the reduction of preslaughter death losses, high temperature and relative humidity in the tropics are the major concerns regarding broiler survival prior slaughtering. However, the relationship between different lairage times under controlled environment and the thermal condition outside the holding area is still unclear. Thus, the aim of this study was to compare different intervals of lairage time with different environmental temperature and relationship with poultry mortality rates. A study was conducted in a commercial poultry abattoir in the State of Sao Paulo, Brazil, in the year of 2006. The historical data set from 13,937 trucks, about broiler mortality during preslaughter operations, was given by the abattoir. Factors that influence the welfare of birds were studied, such as lairage time in abattoir and hourly dry-bulb temperature. The statistical analysis was performed using the Double Generalized Linear Models. The lower incidence of death losses before arrival at the processing plant (approximately 13 dead birds per truck) was observed when the lairage time was between 1 to 3 hours, under high temperatures (above 22°C). This effect was more pronounced under critical (25-28°C) and lethal intervals (above 29°C) (12 and 13 dead birds per truck, respectively). In relation to lairage time, the reduction in mortality rates was more pronounced in the intervals up to 1 hour of lairage under climatized conditions, with a reduction of 3 dead birds per truck. It was concluded that thermal stress have negative influence for broilers welfare kept under preslaughter conditions and variations on mortality rate are strongly related with different lairage times.

No que diz respeito à redução das perdas por mortalidade pré-abate, as temperaturas e umidades relativas elevadas nos trópicos são as maiores preocupações quanto à sobrevivência de frangos de corte antes do abate. Entretanto, a relação entre diferentes tempos de espera em ambiente controlado e a condição térmica fora do galpão de espera ainda não está clara. Dessa forma, objetivou-se por meio deste trabalho comparar diferentes tempos de espera com diferentes temperaturas externas e a influência nas taxas de mortalidade de frangos de corte. O estudo foi conduzido em um abatedouro comercial de frangos de corte, situado no Estado de São Paulo, Brasil, durante o ano de 2006. Dados históricos de mortalidade de aves durante as operações pré-abate foram obtidos no abatedouro, provenientes de 13.937 caminhões transportadores de frangos de corte. Fatores que influenciam o bem estar das aves foram estudados, dentre eles, o tempo de espera no abatedouro e a temperatura horária do ambiente externo. A análise estatística foi realizada por meio dos Modelos Lineares Generalizados Duplos. A baixa incidência de mortes antes da chegada à linha de abate foi observada (aproximadamente 13 aves mortas por caminhão) quando o tempo de espera esteve entre 1 e 3 horas, sob altas temperaturas (acima de 22°C). Esse efeito foi mais evidente nas faixas crítica (25-28°C) e letal (acima de 29°C) (12 e 13 aves mortas por caminhão, respectivamente). Com relação ao tempo de espera, a redução da mortalidade foi mais pronunciada em intervalos acima de uma hora de espera, sob condições de espera climatizada. Conclui-se que o estresse térmico possui influência negativa para o bem-estar de frangos mantidos sob condição pré-abate e variações na taxa de mortalidade são fortemente relacionadas aos diferentes tempos de espera.

Thermal stress related with mortality rates on broilers' preslaughter operations: a lairage time effect study

Concerning the reduction of preslaughter death losses, high temperature and relative humidity in the tropics are the major concerns regarding broiler survival prior slaughtering. However, the relationship between different lairage times under controlled environment and the thermal condition outside the holding area is still unclear. Thus, the aim of this study was to compare different intervals of lairage time with different environmental temperature and relationship with poultry mortality rates. A study was conducted in a commercial poultry abattoir in the State of Sao Paulo, Brazil, in the year of 2006. The historical data set from 13,937 trucks, about broiler mortality during preslaughter operations, was given by the abattoir. Factors that influence the welfare of birds were studied, such as lairage time in abattoir and hourly dry-bulb temperature. The statistical analysis was performed using the Double Generalized Linear Models. The lower incidence of death losses before arrival at the processing plant (approximately 13 dead birds per truck) was observed when the lairage time was between 1 to 3 hours, under high temperatures (above 22°C). This effect was more pronounced under critical (25-28°C) and lethal intervals (above 29°C) (12 and 13 dead birds per truck, respectively). In relation to lairage time, the reduction in mortality rates was more pronounced in the intervals up to 1 hour of lairage under climatized conditions, with a reduction of 3 dead birds per truck. It was concluded that thermal stress have negative influence for broilers welfare kept under preslaughter conditions and variations on mortality rate are strongly related with different lairage times.

No que diz respeito à redução das perdas por mortalidade pré-abate, as temperaturas e umidades relativas elevadas nos trópicos são as maiores preocupações quanto à sobrevivência de frangos de corte antes do abate. Entretanto, a relação entre diferentes tempos de espera em ambiente controlado e a condição térmica fora do galpão de espera ainda não está clara. Dessa forma, objetivou-se por meio deste trabalho comparar diferentes tempos de espera com diferentes temperaturas externas e a influência nas taxas de mortalidade de frangos de corte. O estudo foi conduzido em um abatedouro comercial de frangos de corte, situado no Estado de São Paulo, Brasil, durante o ano de 2006. Dados históricos de mortalidade de aves durante as operações pré-abate foram obtidos no abatedouro, provenientes de 13.937 caminhões transportadores de frangos de corte. Fatores que influenciam o bem estar das aves foram estudados, dentre eles, o tempo de espera no abatedouro e a temperatura horária do ambiente externo. A análise estatística foi realizada por meio dos Modelos Lineares Generalizados Duplos. A baixa incidência de mortes antes da chegada à linha de abate foi observada (aproximadamente 13 aves mortas por caminhão) quando o tempo de espera esteve entre 1 e 3 horas, sob altas temperaturas (acima de 22°C). Esse efeito foi mais evidente nas faixas crítica (25-28°C) e letal (acima de 29°C) (12 e 13 aves mortas por caminhão, respectivamente). Com relação ao tempo de espera, a redução da mortalidade foi mais pronunciada em intervalos acima de uma hora de espera, sob condições de espera climatizada. Conclui-se que o estresse térmico possui influência negativa para o bem-estar de frangos mantidos sob condição pré-abate e variações na taxa de mortalidade são fortemente relacionadas aos diferentes tempos de espera.

Thermal stress related with mortality rates on broilers' preslaughter operations: a lairage time effect study

Concerning the reduction of preslaughter death losses, high temperature and relative humidity in the tropics are the major concerns regarding broiler survival prior slaughtering. However, the relationship between different lairage times under controlled environment and the thermal condition outside the holding area is still unclear. Thus, the aim of this study was to compare different intervals of lairage time with different environmental temperature and relationship with poultry mortality rates. A study was conducted in a commercial poultry abattoir in the State of Sao Paulo, Brazil, in the year of 2006. The historical data set from 13,937 trucks, about broiler mortality during preslaughter operations, was given by the abattoir. Factors that influence the welfare of birds were studied, such as lairage time in abattoir and hourly dry-bulb temperature. The statistical analysis was performed using the Double Generalized Linear Models. The lower incidence of death losses before arrival at the processing plant (approximately 13 dead birds per truck) was observed when the lairage time was between 1 to 3 hours, under high temperatures (above 22°C). This effect was more pronounced under critical (25-28°C) and lethal intervals (above 29°C) (12 and 13 dead birds per truck, respectively). In relation to lairage time, the reduction in mortality rates was more pronounced in the intervals up to 1 hour of lairage under climatized conditions, with a reduction of 3 dead birds per truck. It was concluded that thermal stress have negative influence for broilers welfare kept under preslaughter conditions and variations on mortality rate are strongly related with different lairage times.

No que diz respeito à redução das perdas por mortalidade pré-abate, as temperaturas e umidades relativas elevadas nos trópicos são as maiores preocupações quanto à sobrevivência de frangos de corte antes do abate. Entretanto, a relação entre diferentes tempos de espera em ambiente controlado e a condição térmica fora do galpão de espera ainda não está clara. Dessa forma, objetivou-se por meio deste trabalho comparar diferentes tempos de espera com diferentes temperaturas externas e a influência nas taxas de mortalidade de frangos de corte. O estudo foi conduzido em um abatedouro comercial de frangos de corte, situado no Estado de São Paulo, Brasil, durante o ano de 2006. Dados históricos de mortalidade de aves durante as operações pré-abate foram obtidos no abatedouro, provenientes de 13.937 caminhões transportadores de frangos de corte. Fatores que influenciam o bem estar das aves foram estudados, dentre eles, o tempo de espera no abatedouro e a temperatura horária do ambiente externo. A análise estatística foi realizada por meio dos Modelos Lineares Generalizados Duplos. A baixa incidência de mortes antes da chegada à linha de abate foi observada (aproximadamente 13 aves mortas por caminhão) quando o tempo de espera esteve entre 1 e 3 horas, sob altas temperaturas (acima de 22°C). Esse efeito foi mais evidente nas faixas crítica (25-28°C) e letal (acima de 29°C) (12 e 13 aves mortas por caminhão, respectivamente). Com relação ao tempo de espera, a redução da mortalidade foi mais pronunciada em intervalos acima de uma hora de espera, sob condições de espera climatizada. Conclui-se que o estresse térmico possui influência negativa para o bem-estar de frangos mantidos sob condição pré-abate e variações na taxa de mortalidade são fortemente relacionadas aos diferentes tempos de espera.

Thermal stress related with mortality rates on broilers' preslaughter operations: a lairage time effect study

Concerning the reduction of preslaughter death losses, high temperature and relative humidity in the tropics are the major concerns regarding broiler survival prior slaughtering. However, the relationship between different lairage times under controlled environment and the thermal condition outside the holding area is still unclear. Thus, the aim of this study was to compare different intervals of lairage time with different environmental temperature and relationship with poultry mortality rates. A study was conducted in a commercial poultry abattoir in the State of Sao Paulo, Brazil, in the year of 2006. The historical data set from 13,937 trucks, about broiler mortality during preslaughter operations, was given by the abattoir. Factors that influence the welfare of birds were studied, such as lairage time in abattoir and hourly dry-bulb temperature. The statistical analysis was performed using the Double Generalized Linear Models. The lower incidence of death losses before arrival at the processing plant (approximately 13 dead birds per truck) was observed when the lairage time was between 1 to 3 hours, under high temperatures (above 22°C). This effect was more pronounced under critical (25-28°C) and lethal intervals (above 29°C) (12 and 13 dead birds per truck, respectively). In relation to lairage time, the reduction in mortality rates was more pronounced in the intervals up to 1 hour of lairage under climatized conditions, with a reduction of 3 dead birds per truck. It was concluded that thermal stress have negative influence for broilers welfare kept under preslaughter conditions and variations on mortality rate are strongly related with different lairage times.

No que diz respeito à redução das perdas por mortalidade pré-abate, as temperaturas e umidades relativas elevadas nos trópicos são as maiores preocupações quanto à sobrevivência de frangos de corte antes do abate. Entretanto, a relação entre diferentes tempos de espera em ambiente controlado e a condição térmica fora do galpão de espera ainda não está clara. Dessa forma, objetivou-se por meio deste trabalho comparar diferentes tempos de espera com diferentes temperaturas externas e a influência nas taxas de mortalidade de frangos de corte. O estudo foi conduzido em um abatedouro comercial de frangos de corte, situado no Estado de São Paulo, Brasil, durante o ano de 2006. Dados históricos de mortalidade de aves durante as operações pré-abate foram obtidos no abatedouro, provenientes de 13.937 caminhões transportadores de frangos de corte. Fatores que influenciam o bem estar das aves foram estudados, dentre eles, o tempo de espera no abatedouro e a temperatura horária do ambiente externo. A análise estatística foi realizada por meio dos Modelos Lineares Generalizados Duplos. A baixa incidência de mortes antes da chegada à linha de abate foi observada (aproximadamente 13 aves mortas por caminhão) quando o tempo de espera esteve entre 1 e 3 horas, sob altas temperaturas (acima de 22°C). Esse efeito foi mais evidente nas faixas crítica (25-28°C) e letal (acima de 29°C) (12 e 13 aves mortas por caminhão, respectivamente). Com relação ao tempo de espera, a redução da mortalidade foi mais pronunciada em intervalos acima de uma hora de espera, sob condições de espera climatizada. Conclui-se que o estresse térmico possui influência negativa para o bem-estar de frangos mantidos sob condição pré-abate e variações na taxa de mortalidade são fortemente relacionadas aos diferentes tempos de espera.

Influence of ß-substituents in aldol reactions of boron enolates of ß-alkoxy methylketones.

Moderate to good levels of substrate-based 1,5-syn-stereocontrol could be achieved in the boron-mediated aldol reactions of ß-tert-butyl methylketones with achiral aldehydes, independent of the nature of the ß-alkoxy protecting group (P = PMB or TBS). The analysis of the relative energies of the transition structures by theoretical calculations using the density functional B3LYP shows relative energies favoring the corresponding OUT-1,5-SYN transition structures, explaining the observed 1,5-syn stereoinduction.

Comportamiento del condiloma venéreo en la Policlínica 28 de septie mbre de enero a junio del 2000 / Behaviour of venereal condiloma at 28 de Septiembre polyclinics from january to June 2000

Se realizó un estudio prospectivo, descriptivo y comparativo a todas las personas que acudieron a la consulta de transmisión sexual por presentar condilomas acuminados de enero a junio del 2000, en la Policlínica 28 de Septiembre de Vázquez. Se confeccionó una encuesta solicitando edad, estado civil, sexo, protección con el condón y conocimiento de la existencia de la enfermedad. Realizándose un examen físico minucioso de piel y mucosa, para confirmar el diagnóstico. Coincidiendo el grupo de 15 a 29 años con el mayor número de infectados (64,5 por ciento) y el sexo femenino fue el más afectado con 18 pacientes. Se detecto que el 74,2 por ciento de los casos se protegió en algún momento con el preservativo y el 83,9 por ciento conocían de la existencia de esa afección. Para concluir se confirmó que la eliminación de las verrugas venéreas es mucho más rápida con la aplicación del ácido tricloroacético al 80 por ciento a razón de dos curas semanales que con podofilina al 25 por ciento con igual aplicación(AU)

A prospective, descriptive and comparative study was done to all the people who came to the sexually transmitted diseases for presenting condylomata acuminata from January to June, 2000 in 28 de Septiembre Policlinical in Vázquez. A survey was carried out taking into account age, sex, marital status, the use of the condom and knowledge about this disease. By means of a deep physical examination in the skin and mocous membrane to confirm the diagnosis we realized that the 15 - 29 years group had the larger amount of patients (64,5 per cent) and the female sexwas the most affected with 18 patients. The 74,2 per cent of the cases sometimes used the condom and the 83,9 per cent knew the existence of this disease. It was demonstrated that the elimination of the warts is much faster with the used of trichloacetic acid at 80 per cent twice a week than with podophyllum at 25 per cent (AU)

Antecedente familiar de asma bronquial em 208 niños asmáticos

Se estudiaron 208 niños con Asma Bronquial los cuales se compararon con un grupo control de 196 niños encontrandose en el primer grupo un 98% de antecedentes familiares de la enfermedad contra apenas un 13% en el grupo control con una diferencia significativa notable (p menor de 0.001). No existió diferencia en cuanto a las ramas paterna y materna (46 y 44% respectivamente y un 10% de antecedentes comunes a ambas afectadas fue grado I 43%, grado II 54% y grado III 3%. Es importante conocer que de los 5 niños asmáticos sin ningún antecedente familiar, 4 de ellos poseían antecedentes patológicos de importancia (Asfixia perinatal severa, Parálisis cerebral, Bronqiolitis y madre Atopica). En resumen, casi todos nuestros niños asmáticos poseen antecedentes familiares de la enfermedad lo cual nos lleva a tomar medidas con el fin de dismunuir la posibilidad que el resto de los niños desarrollen esa enfermedad