Revista panamericana de salud pública = Pan American journal of public health, 2002
To determine the national and state-level prevalence of endemic goiter associated with iodine def... more To determine the national and state-level prevalence of endemic goiter associated with iodine deficiency in schoolchildren between 6 and 14 years of age in Brazil, based on data from a national survey carried out from 1994 to 1996. Thyroid inspection and palpation were performed on 178,774 schoolchildren between 6 and 14 years of age, in all the states of Brazil. A subsample was selected to measure the iodine content in their urine as well as the iodine content of the table salt used for cooking in their homes. The last survey before this one was carried out in 1975. We found an 86% decrease in the median prevalence of grade 1 and 2 grade 2 goiter, from 12% to 1%. In 21% of the municipalities, the observed prevalence was zero. From the 16,803 urine samples collected for iodine measurement, 7,702 were matched with the corresponding clinical record (a loss of 54%). The median urinary iodine level was 14.0 micrograms/dL, and without a significant correlation with the clinical data on g...
The changes in the demographic and epidemiologic profiles of the Brazilian population and the nee... more The changes in the demographic and epidemiologic profiles of the Brazilian population and the need to rethink the health care model have led many countries like Brazil to consider Home Care (HC) as a care strategy. However, there is a gap between the supply of HC services, the demand for care and the health needs manifested by the population. Thus, this article analyzes scientific output regarding the status of the relation between supply, demand and the needs related to home health care. This work is based on an integrative review of the literature in the following databases: Cumulative Index to Nursing and Allied Health Literature (CINAHL), Latin America and the Caribbean Literature on Health and Science (Lilacs), Medical Literature Analysis and Retrieval System Online (Medline) and Web of Science. Despite the fact that few articles refer to the issue in question, there is evidence indicating that health demands and needs are seldom taken into account either in a quantitative or qualitative approach when developing the organization of HC services. The analysis would indicate that there is a national and international deficit in the supply of HC services considering the demand for health care and needs currently prevailing.
The scope of this study is to evaluate the condition of household food and nutrition (in)security... more The scope of this study is to evaluate the condition of household food and nutrition (in)security (IAN) of the users of low-budget restaurants in Belo Horizonte (BH). This is an analytical cross-sectional study carried out on all low-budget restaurants and cafeteria in BH with a sample of 1613 users. The IAN was assessed using the Brazilian Food Insecurity Scale and cross-checked with the socioeconomic profile of the users. The Chisquare and Mann-Whitney tests were applied. All p-value < 0.25 variables were included in the multivariate analysis. The groups most exposed to IAN among users of low-budget restaurants are those with a lower socioeconomic level and per capita income class and those with a large number of residents in the household. Also affected are those who admit to having different kinds of wants and needs, and those for whom price and living alone are the main reasons for frequenting low-budget restaurants. The factors affecting the IAN are varied and multifactoria...
Possible anxiogenic effects of fenvalerate, a type II pyrethroid pesticide, in rats. PHYSIOL BEHA... more Possible anxiogenic effects of fenvalerate, a type II pyrethroid pesticide, in rats. PHYSIOL BEHAV 67 (4) 611-615, 1999.-Pyrethroids are insecticides extensively used to control pests around houses as well as in agriculture. It has been suggested that type II pyrethroids may act on GABA receptors as benzodiazepine antagonists. Because benzodiazepines are used in anxiety, the present study was undertaken to investigate the possible anxiogenic effects of fenvalerate, a type II pyrethroid, in rats. Behavior in the open-field, social interaction, plus-maze behavior, and one-way passive avoidance were studied in rats orally treated with 1, 10, or 30 mg/kg fenvalerate. This pyrethroid reduced locomotion and rearing frequencies and increased immobility duration. Ten and 30 mg/kg of fenvalerate reduced social interaction, whereas the 1 mg/kg dose had no effect on this behavior. Fenvalerate administration did not change the plus-maze behavior of rats. Pretraining administration (1, 10, and 30 mg/kg) did not modify the behavior of rats during the training session of a passive avoidance task, while in the test session 10 mg/kg fenvalerate caused an increase in the crossing latency, and the 30 mg/kg dose reduced this parameter and increased the percent of animals crossing to the shock compartment. The behavioral alterations observed in this study suggest that fenvalerate has an anxiolytic effect on rats.
Resumo: O mecanismo de transformação de movimento biela-manivela é um mecanismo emblemático da en... more Resumo: O mecanismo de transformação de movimento biela-manivela é um mecanismo emblemático da engenharia mecânica provavelmente dos mais utilizados devido à sua simplicidade e versatilidade. Usualmente associado à máquina a vapor de pistões, é ainda hoje muito utilizado em motores de combustão interna, compressores e outras máquinas. Este mecanismo é amplamente utilizado como forma de transformação de movimento de rotação em movimento linear (como, por exemplo, no compressor alternativo) ou vice-versa (como por exemplo, no motor de combustão interna). Os dois pontos mortos, nas posições extremas do pistão, são ultrapassados com a instalação de um volante de inércia, no eixo da manivela.
Revista panamericana de salud pública = Pan American journal of public health, 2002
To determine the national and state-level prevalence of endemic goiter associated with iodine def... more To determine the national and state-level prevalence of endemic goiter associated with iodine deficiency in schoolchildren between 6 and 14 years of age in Brazil, based on data from a national survey carried out from 1994 to 1996. Thyroid inspection and palpation were performed on 178,774 schoolchildren between 6 and 14 years of age, in all the states of Brazil. A subsample was selected to measure the iodine content in their urine as well as the iodine content of the table salt used for cooking in their homes. The last survey before this one was carried out in 1975. We found an 86% decrease in the median prevalence of grade 1 and 2 grade 2 goiter, from 12% to 1%. In 21% of the municipalities, the observed prevalence was zero. From the 16,803 urine samples collected for iodine measurement, 7,702 were matched with the corresponding clinical record (a loss of 54%). The median urinary iodine level was 14.0 micrograms/dL, and without a significant correlation with the clinical data on g...
The changes in the demographic and epidemiologic profiles of the Brazilian population and the nee... more The changes in the demographic and epidemiologic profiles of the Brazilian population and the need to rethink the health care model have led many countries like Brazil to consider Home Care (HC) as a care strategy. However, there is a gap between the supply of HC services, the demand for care and the health needs manifested by the population. Thus, this article analyzes scientific output regarding the status of the relation between supply, demand and the needs related to home health care. This work is based on an integrative review of the literature in the following databases: Cumulative Index to Nursing and Allied Health Literature (CINAHL), Latin America and the Caribbean Literature on Health and Science (Lilacs), Medical Literature Analysis and Retrieval System Online (Medline) and Web of Science. Despite the fact that few articles refer to the issue in question, there is evidence indicating that health demands and needs are seldom taken into account either in a quantitative or qualitative approach when developing the organization of HC services. The analysis would indicate that there is a national and international deficit in the supply of HC services considering the demand for health care and needs currently prevailing.
The scope of this study is to evaluate the condition of household food and nutrition (in)security... more The scope of this study is to evaluate the condition of household food and nutrition (in)security (IAN) of the users of low-budget restaurants in Belo Horizonte (BH). This is an analytical cross-sectional study carried out on all low-budget restaurants and cafeteria in BH with a sample of 1613 users. The IAN was assessed using the Brazilian Food Insecurity Scale and cross-checked with the socioeconomic profile of the users. The Chisquare and Mann-Whitney tests were applied. All p-value < 0.25 variables were included in the multivariate analysis. The groups most exposed to IAN among users of low-budget restaurants are those with a lower socioeconomic level and per capita income class and those with a large number of residents in the household. Also affected are those who admit to having different kinds of wants and needs, and those for whom price and living alone are the main reasons for frequenting low-budget restaurants. The factors affecting the IAN are varied and multifactoria...
Possible anxiogenic effects of fenvalerate, a type II pyrethroid pesticide, in rats. PHYSIOL BEHA... more Possible anxiogenic effects of fenvalerate, a type II pyrethroid pesticide, in rats. PHYSIOL BEHAV 67 (4) 611-615, 1999.-Pyrethroids are insecticides extensively used to control pests around houses as well as in agriculture. It has been suggested that type II pyrethroids may act on GABA receptors as benzodiazepine antagonists. Because benzodiazepines are used in anxiety, the present study was undertaken to investigate the possible anxiogenic effects of fenvalerate, a type II pyrethroid, in rats. Behavior in the open-field, social interaction, plus-maze behavior, and one-way passive avoidance were studied in rats orally treated with 1, 10, or 30 mg/kg fenvalerate. This pyrethroid reduced locomotion and rearing frequencies and increased immobility duration. Ten and 30 mg/kg of fenvalerate reduced social interaction, whereas the 1 mg/kg dose had no effect on this behavior. Fenvalerate administration did not change the plus-maze behavior of rats. Pretraining administration (1, 10, and 30 mg/kg) did not modify the behavior of rats during the training session of a passive avoidance task, while in the test session 10 mg/kg fenvalerate caused an increase in the crossing latency, and the 30 mg/kg dose reduced this parameter and increased the percent of animals crossing to the shock compartment. The behavioral alterations observed in this study suggest that fenvalerate has an anxiolytic effect on rats.
Resumo: O mecanismo de transformação de movimento biela-manivela é um mecanismo emblemático da en... more Resumo: O mecanismo de transformação de movimento biela-manivela é um mecanismo emblemático da engenharia mecânica provavelmente dos mais utilizados devido à sua simplicidade e versatilidade. Usualmente associado à máquina a vapor de pistões, é ainda hoje muito utilizado em motores de combustão interna, compressores e outras máquinas. Este mecanismo é amplamente utilizado como forma de transformação de movimento de rotação em movimento linear (como, por exemplo, no compressor alternativo) ou vice-versa (como por exemplo, no motor de combustão interna). Os dois pontos mortos, nas posições extremas do pistão, são ultrapassados com a instalação de um volante de inércia, no eixo da manivela.
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