Abstract Gypsum is a widely used material in civil construction, but its use is restricted to areas with low humidity or water action. The study shows the influence of the application of a commercial water-repellent additive in production of gypsum pastes. The total immersion water absorption test defined the contents used for the characterization of fresh and hardened plasters. The water absorption decreased in 1.0% and returned to increase in 2.0%, revealing that the optimal content of the water repellent used must be between 0.3% and 1.0% According to the capillary water absorption test, the water repellent additive showed the best results when used the content of 1.0% and was classified as water-preventive. The compressive strength decreased by 3.6% and the surface hardness by up to 6.2% in the pastes, when compared to the reference ones. The additive caused a change in the properties of gypsum pastes in the fresh and hardened state. The waterproofing barrier was not verified, the use of higher levels of water repellent may be unfeasible due to the high cost of the additive. construction action waterrepellent plasters 10 1 0 1.0 20 2 2.0% 03 3 0.3 waterpreventive. waterpreventive preventive. preventive water-preventive 36 6 3.6 62 6.2 ones state verified 1. 2.0 0. 3. 6. 2.

Resumo Ogesso é um material largamente utilizado na construção civil, mas seu uso se restringe a áreas com pouca umidade ou ação da água. O estudo mostra a influência da aplicação de um aditivo hidrofugante comercial na produção de pastas de gesso. O ensaio de absorção de água por imersão total definiu os teores utilizados na caracterização das pastas no estado fresco e endurecido. A absorção de água diminuiu em 1,0% de adição e volta a crescer aos 2,0%, revelando que o teor ótimo do hidrofugante utilizado deve estar entre 0,3% e 1,0%. Na absorção de água por capilaridade, o aditivo apresentou melhor resultado quando utilizado em 1,0%, sendo a mistura classificada como preventiva à água. A resistência à compressão diminuiu em 3,6% e a dureza superficial em até 6,2% nas pastas, quando comparadas às de referência. O aditivo provocou a modificação das propriedades das pastas de gesso no estado fresco e endurecido. A formação da barreira impermeabilizante não foi verificada, e a utilização de maiores teores de hidrofugação poderá ser inviável devido ao elevado custo do aditivo. civil endurecido 10 1 0 1,0 20 2 2,0% 03 3 0,3 capilaridade 36 6 3,6 62 6,2 referência verificada 1, 2,0 0, 3, 6, 2,

ABSTRACT Rice blast caused by the Magnaporthe oryzae pathogen is a major disease in this crop, and may cause devastating losses. This study aimed to investigate the profile of Waitea circinata mycorrhiza volatile compounds in antagonism to M. oryzae, under different growth periods and temperatures, using a completely randomized design. Volatile organic compounds were extracted by headspace solid phase microextraction and analyzed by gas chromatography mass spectrometry, while multidimensional scaling was used to compare the produced volatile organic compounds. The main compounds responsible by the antagonism to M. oryzae were longifolene, trans-β-farnesene, (Z)-α-bisabolene and δ-amorphene, which can be used as biofungicides and incorporated into rice blast management strategies. crop losses M temperatures design spectrometry longifolene transβfarnesene, transβfarnesene trans β farnesene, farnesene trans-β-farnesene Zαbisabolene Z α bisabolene δamorphene, δamorphene δ amorphene, amorphene δ-amorphene strategies

RESUMO A brusone causada pelo patógeno Magnaporthe oryzae é a principal doença do arroz, e pode causar perdas devastadoras. Objetivou-se investigar o perfil de compostos voláteis da micorriza Waitea circinata no antagonismo a M. oryzae, em diferentes períodos e temperaturas, utilizando-se delineamento inteiramente casualizado. Compostos orgânicos voláteis foram extraídos por micro extração em fase sólida, no modo headspace, e analisados por cromatografia gasosa acoplada a espectrometria de massas, enquanto o escalonamento multidimensional foi usado para comparar os compostos orgânicos voláteis produzidos. Os principais compostos responsáveis pelo antagonismo a M. oryzae foram longifoleno, trans-β-farneseno, (Z)-α-bisaboleno e δ-amorfeno, que podem ser usados como biofungicidas e incorporados às estratégias de manejo da brusone do arroz. arroz devastadoras Objetivouse Objetivou se M temperaturas utilizandose utilizando casualizado sólida headspace massas produzidos longifoleno transβfarneseno, transβfarneseno trans β farneseno, farneseno trans-β-farneseno Zαbisaboleno Z α bisaboleno δamorfeno, δamorfeno δ amorfeno, amorfeno δ-amorfeno

ABSTRACT The objective of this study was to evaluate performance and carcass and meat characteristics of lambs fed a solution of cheese whey plus water (100 g kg−1 dry matter) (CW) during feedlot and pre-slaughter lairage. Data were analyzed as a 2 × 2 factorial (place – feedlot and slaughterhouse, food – water or CW). We evaluated the following treatments (feedlot/slaughterhouse): CW/CW, CW/water, water/CW, and control (water/water). The lambs were given a balanced diet for 70 days in the feedlot. Slaughter started 12 h after the animals arrived at the slaughterhouse. Dry matter intake, gain-to-feed ratio, average daily gain, and body weight of lambs fed CW were similar to those of control lambs. The water/CW group consumed less of this solution than the CW/CW group in the slaughterhouse. The CW supplied as a pre-slaughter supplement reduces the drip losses of lamb carcasses provided that the animals also consume it during the feedlot period. The other carcass characteristics (carcass weight, pH, subcutaneous fat thickness, and ribeye area) were similar among treatments. The meat characteristics (color, water holding capacity, cooking losses, and shear force) were similar among treatments. Whey cheese added to water can be used as an ingredient of the diet for lambs and as pre-slaughter supplement, since it does not change performance and improves carcass characteristics.

ABSTRACT The objective of this study was to evaluate performance and carcass and meat characteristics of lambs fed a solution of crude glycerin plus water (100 g kg−1 of dry matter) (GLY) during feedlot and pre-slaughter lairage. Data were analyzed as a 2 × 2 factorial (GLY available or not in feedlot and GLY available or not in the slaughterhouse). We evaluated the following treatments (feedlot/slaughterhouse): GLY/GLY, GLY/water, water/GLY, and water/water (control). Lambs fed a balanced diet for 70 days in the feedlot. Slaughter started 12 h after the animals arrived at the slaughterhouse. Dry matter intake, feed conversion, average daily gain, and body weight of lambs fed GLY were similar to those of control lambs. Lambs receiving GLY ingested more water in the feedlot. At the slaughterhouse, water/GLY animals ingested more glycerin and water than GLY/water animals ingested water. Group GLY/GLY had lower drip loss in carcasses than the group GLY/water. The other carcass and meat characteristics (carcass weight, pH, subcutaneous fat thickness, ribeye area, color, water holding capacity, cooking losses, and shear force) were similar among treatments. Solution of crude glycerin plus water can be used as a dietary ingredient for lambs, since it improves hydration and does not change performance and carcass characteristics. This solution supplied as a pre-slaughter supplement does not improve carcass and meat characteristics.

OBJETIVOS: Analisar o perfil sociodemográfico e comportamental dos parceiros sexuais, a proporção daqueles inadequadamente tratados e os motivos da não realização do tratamento. MÉTODOS: Estudo quantitativo cuja coleta de dados ocorreu de maio a outubro de 2008, em cinco maternidades públicas de Fortaleza, Ceará. Foram aplicados questionários às parturientes internadas com sífilis que informaram ter parceiro sexual fixo. Foram analisadas as variáveis sociodemográficas e as relacionadas à comunicação, diagnóstico e tratamento dos parceiros sexuais. Os dados foram digitados no programa Statistical Package for the Social Sciences e foram analisados por meio de distribuições de frequências, de medidas de tendência central e de dispersão. RESULTADOS: Participaram do estudo 56 parturientes. Os parceiros sexuais tinham média de idade de 29 anos, menos de 7 anos de estudo (50%), atividade laboral (82,1%), renda familiar inferior a 1 salário-mínimo (6,4%). Eram o pai da criança 92,9 e 69,6% moravam com a parturiente. Faziam uso de álcool e drogas 50 e 12%, respectivamente. Foram comunicados do diagnóstico 75,0% parceiros, a comunicação foi feita pela própria mulher em 78,6% casos e ficaram sabendo do resultado do exame de VDRL antes ou durante o pré-natal, 59,5%. Não revelaram o diagnóstico 25,0% mulheres e os motivos alegados foram: desconhecer a importância do tratamento do parceiro (50,0%), não ter estado com este parceiro após o diagnóstico (42,9%) e estar brigada (7,1%). Dos que souberam do diagnóstico antes ou durante o pré-natal, 56,0% foram tratados e 6 (42,8%) foram considerados adequadamente tratados. Dentre os que não receberam tratamento, 63,6% se recusaram por não se sentir doentes, não acreditar no tratamento e medo de injeção. CONCLUSÕES: Os parceiros são comunicados do diagnóstico de sífilis da gestante; entretanto, poucos são adequadamente tratados.

PURPOSES: To analyze the sociodemographic and behavioral profile of sex partners, the proportion of those inadequately treated as well as to verify how many of them were inadequately treated and why some were not treated. METHODS: Quantitative study with data collected from May to October, 2008 at five public maternities in Fortaleza, Ceará. A survey was carried out with parturients who were hospitalized with syphilis and had a stable sex partner. We analyzed sociodemographic variables and those related to communication, diagnosis and treatment of sex partners. The data were entered into the Statistical Package for the Social Sciences and were analyzed using frequency distributions, measures of central tendency and dispersion. RESULTS: The study included 56 pregnant women. Most sexual partners were young adults aged on average 29 years, 50% of them had studied for less than seven years, 82.1 worked and 46.4% had a family income of less than a minimum wage. Of all the partners, 92.9% were the child's father and 69.6% lived with the women. Fifty percent and 12% were alcohol and drug users, respectively. Most partners (75.0%) were told about the diagnosis by the women, and in 78.6% of cases they were aware of the VDRL result before or during the prenatal period. However, 25.0% of the women did not communicate the result to their partners for the following reasons: not knowing the importance of the partner's treatment (50.0%), not being together after the diagnosis (42.9%) and having a quarrel (7.1%). Of the partners who were informed about the result before or during the prenatal period, 56.0% were treated and six (42.8%) were considered to have been properly treated. Among the ones who did not receive treatment, 63.6% refused it because they did not feel sick, because they did not believe in the treatment and because they were afraid of injections. CONCLUSIONS: Partners are told about the syphilis diagnosis of the pregnant women; however, only a few are properly treated.

O propósito deste estudo foi avaliar a insatisfação corporal em adolescentes e explorar diferenças conforme sexo, nível econômico e índice de massa corporal. Foram estudados 4.325 indivíduos de 14 a 15 anos da cidade de Pelotas, Brasil. A insatisfação corporal foi avaliada comparando a imagem desejada com a imagem percebida, de acordo com escala de silhuetas de Tiggemann e Wilson-Barret. O estado nutricional foi categorizado conforme proposto pela Organização Mundial da Saúde, enquanto o nível socioeconômico foi avaliado segundo classificação da Associação Brasileira de Empresas de Pesquisas. Verificou-se que 27,6% dos adolescentes estavam acima do peso. A insatisfação corporal, avaliada pela escala de silhuetas, atingiu 51,0% dos meninos e 65,6% das meninas. O nível econômico e o estado nutricional estiveram associados com o desfecho. A maioria dos adolescentes com excesso de peso desejava ter uma silhueta menor do que a percebida. O nível econômico modificou o efeito do estado nutricional sobre a insatisfação corporal. Adolescentes das classes econômicas mais altas fora do peso ideal mostraram maior insatisfação corporal do que os mais pobres e, independente do nível econômico, as meninas estão mais insatisfeitas com o excesso de peso e os meninos com a magreza.

The scope of this study was to evaluate body dissatisfaction among adolescents, and to explore differences according to sex, socioeconomic status and body mass index. 4325 individuals aged 14-15 years old from Pelotas, Brazil, were studied. Body dissatisfaction was evaluated comparing the desired image with the perceived image, according to the Tiggemann & Wilson-Barret silhouette scale. The nutritional status was categorized in accordance with World Health Organization criteria, whereas socioeconomic status was evaluated using classifications of the Brazilian Association of Research Institutes. It was found that 27.6% of teens were overweight. Body dissatisfaction, appraised by the silhouette scale, affected 51% of boys and 65.6% of girls. The economic and nutritional status was associated with the outcome. Most overweight adolescents wished to have a slimmer silhouette than the perceived one. The economic level modified the effect of nutritional status on body dissatisfaction. Adolescents from the wealthier economic classes who were not in the ideal weight range manifested greater body dissatisfaction than the less affluent individuals and, irrespective of economic status, girls are more dissatisfied with excess body weight and boys with slimness.

O propósito deste estudo foi avaliar a insatisfação corporal em adolescentes e explorar diferenças conforme sexo, nível econômico e índice de massa corporal. Foram estudados 4.325 indivíduos de 14 a 15 anos da cidade de Pelotas, Brasil. A insatisfação corporal foi avaliada comparando a imagem desejada com a imagem percebida, de acordo com escala de silhuetas de Tiggemann e Wilson-Barret. O estado nutricional foi categorizado conforme proposto pela Organização Mundial da Saúde, enquanto o nível socioeconômico foi avaliado segundo classificação da Associação Brasileira de Empresas de Pesquisas. Verificou-se que 27,6% dos adolescentes estavam acima do peso. A insatisfação corporal, avaliada pela escala de silhuetas, atingiu 51,0% dos meninos e 65,6% das meninas. O nível econômico e o estado nutricional estiveram associados com o desfecho. A maioria dos adolescentes com excesso de peso desejava ter uma silhueta menor do que a percebida. O nível econômico modificou o efeito do estado nutricional sobre a insatisfação corporal. Adolescentes das classes econômicas mais altas fora do peso ideal mostraram maior insatisfação corporal do que os mais pobres e, independente do nível econômico, as meninas estão mais insatisfeitas com o excesso de peso e os meninos com a magreza.

The scope of this study was to evaluate body dissatisfaction among adolescents, and to explore differences according to sex, socioeconomic status and body mass index. 4325 individuals aged 14-15 years old from Pelotas, Brazil, were studied. Body dissatisfaction was evaluated comparing the desired image with the perceived image, according to the Tiggemann & Wilson-Barret silhouette scale. The nutritional status was categorized in accordance with World Health Organization criteria, whereas socioeconomic status was evaluated using classifications of the Brazilian Association of Research Institutes. It was found that 27.6% of teens were overweight. Body dissatisfaction, appraised by the silhouette scale, affected 51% of boys and 65.6% of girls. The economic and nutritional status was associated with the outcome. Most overweight adolescents wished to have a slimmer silhouette than the perceived one. The economic level modified the effect of nutritional status on body dissatisfaction. Adolescents from the wealthier economic classes who were not in the ideal weight range manifested greater body dissatisfaction than the less affluent individuals and, irrespective of economic status, girls are more dissatisfied with excess body weight and boys with slimness.