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au:Santos, Jair L. F.

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PERFORMANCE AND EMISSION CHARACTERISTICS OF SESAME BIODIESEL BLENDS IN DIESEL ENGINE
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Santos, Tatieli K.

; Siqueira, Jair A. C.

; Santos, Reginaldo F.

; Bassegio, Doglas

; de Souza, Samuel N. M.

Engenharia Agrícola

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2023, Volume 43 N. 5 elocation e20220229

Abstract: En | Text: En | PDF: En

ABSTRACT Sesame ( Sesamum indicum L.) oilseed needs to be studied in relation to the production of biodiesel and its application as an alternative to the soybean biodiesel used in Brazil. The aim of this study was to evaluate biodiesel blends (B0, B5, B10, B20, B40, B80, and B100) of sesame in the performance and emissions of engines. A few studies of sesame biodiesel in engines were found in the literature imparts novelty to the current study. The fuels were tested in a 5-kVA generator engine at loads ranging from 1000 to 6000 W. The results of the analysis showed that the increase in the sesame biodiesel blend caused a reduction in the specific fuel consumption (SFC), carbon monoxide (CO) emissions, and an increase in nitrogen oxide (NOx) emissions. The SFC of sesame biodiesel (B100) was 11% higher than that of diesel (B0). CO emissions increased 39% for diesel (B0) compared to sesame biodiesel (B100). However, B20 showed lower SFC than diesel and lower gas emissions than B80 and B100 blends. Therefore, sesame biodiesel, especially up to B20, is a viable alternative for the partial replacement of conventional diesel. Sesame biodiesel should be considered as a promising candidate for alternative fuels. L. L Brazil B0, B0 B (B0 B5 B10 B40 5kVA kVA 5 100 600 W SFC, , (SFC) (CO NOx (NOx (B100 11 B0. . 39 B100. However B2 B8 Therefore (B B1 B4 10 60 (SFC (B10 1 3 6 (B1

https://doi.org/10.1590/1809-4430-eng.agric.v43n5e20220229/2023

Biologically Active Volatile Organic Compounds (VOCs) Produced by Rhizospheric Actinobacteria Strains Inhibit the Growth of the Phytopathogen Colletotrichum musae
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Brito, Maria V. de

; Fonseca, Wéverson L.

; Mafezoli, Jair

; Barbosa, Francisco G.

; Nunes, Fátima M.

; Mattos, Marcos C. de

; Santos, João E. A. dos

; Araujo, Francisca S. A.

; Vieira, Regimara F. B. S.

; Magalhães, Hilton C. R.

; Muniz, Celli R.

; Garruti, Deborah S.

; Ootani, Marcio A.

; Souza Netto, José M.

; Pinto, Licarion

; Viana, Francisco M. P.

; Oliveira, Maria C. F.

Journal of the Brazilian Chemical Society

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oct 2022, Volume 33 N. 10 Pages 1172 - 1189

Abstract: En | Text: En | PDF: En

The antifungal potential of volatile organic compounds (VOCs) produced by actinobacterial strains Streptomyces sp. (ACTB-77) and Amycolatopsis sp. (ACTB-290) from the rhizosphere of Caatinga plants against Colletotrichum musae was investigated. VOCs produced by these microorganisms (axenic and co-culture) were investigated using headspace-solid phase micro-extraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS). Although no exclusive VOC peaks were observed in the co-culture with ACTB-77, the same experiment involving ACTB-290 yielded five new peaks, including two identified alcohols, suggested as bioreductive products of the corresponding ketones by the fungus. Statistical analysis revealed that co-culture ACTB-77/C. musae has a closer similarity to the fungus than to the actinobacteria, while the co culture ACTB-290/C. musae showed closer similarity to the actinobacteria. These confirmed the more pronounced antifungal activity of the ACTB-290 strain, as observed in the fungus growth inhibition experiments. The antifungal activity of ACTB-290 was associated to its sulfur-containing metabolites, while linalool was suggested as responsible for the ACTB-77 activity.

https://doi.org/10.21577/0103-5053.20220037

Análise do teor e da qualidade dos lipídeos presentes em sementes de oleaginosas por rmn de baixo campo
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Constantino, André F.

; Lacerda Jr., Valdemar

; Santos, Reginaldo B. dos

; Greco, Sandro J.

; Silva, Renzo C.

; C. Neto, Álvaro

; Barbosa, Lúcio L.

; Castro, Eustáquio V. R. de

; Freitas, Jair C. C.

Química Nova

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2014, Volume 37 N. 1 Pages 10 - 17

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

To choose among the variety of oleaginous plants for biodiesel production, the oil content of several matrices was determined through different low-field ¹H nuclear magnetic resonance (NMR) experiments with varied pulse sequences, namely single-pulse, spin-echo, CPMG, and CWFP. The experiments that involved the first three sequences showed high correlation with each other and with the solvent extraction method. The quality of the vegetable oils was also evaluated on the basis of the existing correlation between the T2 values of the oils and their properties, such as viscosity, iodine index, and cetane index. These analyses were performed using HCA and PCA chemometric tools. The results were sufficiently significant to allow separation of the oleaginous matrices according to their quality. Thus, the low-field ¹H NMR technique was confirmed as an important tool to aid in the selection of oleaginous matrices for biodiesel production.

3203 downloads

Analysis of the prevalence of and factors associated with urinary incontinence among elderly people in the Municipality of São Paulo, Brazil: SABE Study (Health, Wellbeing and Aging)
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Tamanini, José Tadeu Nunes

; Lebrão, Maria Lúcia

; Duarte, Yeda A. O.

; Santos, Jair L. F.

; Laurenti, Ruy

Cadernos de Saúde Pública

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aug 2009, Volume 25 N. 8 Pages 1756 - 1762

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Investigar a prevalência de incontinência urinária entre idosos de São Paulo, Brasil, e fatores associados e de risco. A Organização Pan-Americana da Saúde e a Organização Mundial da Saúde coordenaram estudo multicêntrico denominado Saúde, Bem-Estar e Envelhecimento (Estudo SABE) em pessoas idosas (60 anos ou mais) que vivem em sete países da América Latina e Caribe. No Brasil, o estudo populacional foi realizado no Município de São Paulo no ano 2000. A amostra total brasileira foi de 2.143 pessoas. A prevalência da incontinência urinária auto-referida foi de 11,8% entre homens e 26,2% entre mulheres. Verificou-se que entre aqueles que relataram incontinência urinária, 37% também relataram acidente vascular cerebral e 34%, depressão. Observou-se que quanto maior a dependência do idoso, maior era a prevalência de incontinência urinária. Os fatores associados encontrados foram depressão (OR = 2,49), sexo feminino (2,42), idade avançada (2,35), limitação funcional (2,01). Incontinência urinária é um sintoma altamente prevalente entre a população idosa do Município de São Paulo, especialmente entre as mulheres. A adoção de medidas preventivas pode reduzir os efeitos negativos da incontinência urinária.

To investigate the prevalence of urinary incontinence among elderly people living in São Paulo, Brazil and their associated risk factors. The Pan-American Health Organization and World Health Organization coordinated a multicenter study named Health, Wellbeing and Aging (SABE Study) in elderly people (over 60 years old) living in seven countries in Latin America and the Caribbean. In Brazil, the study was carried out in São Paulo in the year 2000. The total Brazilian sample included 2,143 people. The prevalence of self reported urinary incontinence was 11.8% among men and 26.2% for women. It was verified that among those reporting urinary incontinence, 37% also reported stroke and 34% depression. It was found that the greater the dependence that the elderly people presented, the greater the prevalence of urinary incontinence. The associated factors found were depression (odds ratio = 2.49), female (2.42), advanced age (2.35), important functional limitation (2.01). Urinary incontinence is a highly prevalent symptom among the elderly population of the municipality of São Paulo, especially among women. The adoption of preventive measures can reduce the negative effects of urinary incontinence.

2891 downloads

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Tamanini, José Tadeu Nunes

; Lebrão, Maria Lúcia

; Duarte, Yeda A. O.

; Santos, Jair L. F.

; Laurenti, Ruy

Cadernos de Saúde Pública

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aug 2009, Volume 25 N. 8 Pages 1756 - 1762

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

5738 downloads

Índice de status sócio-econômico da família da mulher grávida que freqüenta o Centro de Saúde Geraldo de Paula Souza da Faculdade de Saúde Pública da Universidade de São Paulo
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Alvarenga, Augusta Thereza de

; Ciari Jr., Cyro

; Santos, Jair L. F.

Revista de Saúde Pública

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dec 1973, Volume 7 N. 4 Pages 351 - 367

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

A partir de uma modificação do esquema teórico de Max Weber, aplicado ao estudo do fenômeno da estratificação social, procurou-se a base conceptual para a elaboração de um índice de status sócio-econômico familiar. Selecionados os indicadores ocupação, renda e educação, consagrados pela literatura sociológica, os pesos respectivos foram obtidos através de um critério estatístico (correlação de cada variável com o "score" total). Cada status familiar, representado por um "score" total, encontra-se referido a um estrato no sistema de estratificação considerado.

Following a modified scheme of Max Weber's theoretical framework applied to the study of Social Stratification, was sought the conceptual basis for making an Index of Family Social Economic Status. After selecting the usual socio-economic variable - occupation, income and education - as indicators of family status, the respective weights were obtained by a statistical criterion (zero order correlation between each variable and the total score). According to its total score, each family is located in a certain social group, which represents a stratum in the rank system.

829 downloads Cited 2 times in SciELO

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Alvarenga, Augusta Thereza de

; Ciari Jr., Cyro

; Santos, Jair L. F.

Revista de Saúde Pública

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dec 1973, Volume 7 N. 4 Pages 351 - 367

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

2040 downloads Cited 2 times in SciELO

Avaliação quantitativa de serviços de pré-natal
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Ciari Jr., Cyro

; Santos, Jair L. F.

; Almeida, Pedro Augusto Marcondes de

Revista de Saúde Pública

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dec 1972, Volume 6 N. 4 Pages 361 - 370

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

São propostos 6 itens de avaliação quantitativa de atividades de serviços de Pré-Natal. São referidos, como indicadores de atividades dos médicos e grau de proteção oferecida às gestantes: 1) a média de consultas por hora/ano por médico; 2) o número de consultas possíveis; 3) a média de consultas por gestante; 4) a proporção entre matrículas e consultas em continuação por mês; 5) média de idade da gestação na matrícula. Procurou-se relacionar estes dados com a qualificação apresentada pelos serviços, ou seja, presença de médico, enfermeira, facilidades para internação, laboratório, medicamentos, cursos e assistência social. Estes indicadores parecem revelar, quando associados, não só a quantidade de serviços prestados, como também indiretamente a sua qualificação. Foram observados 10 serviços de Pré-Natal durante 4 anos de atividades, estas avaliadas pelos indicadores propostos. Revelou-se a predominância de baixa produtividade na maioria deles, com excessivo número de horas ociosas, bem como, número pequeno de consultas para as matrículas. A relação presumida entre qualificação de serviços e maior freqüência ao pré-natal, não se revelou clara a não ser quando oferecida intensamente.

Six items are proposed in order to obtain a quantitative evaluation of the activities in the prenatal services. Indexes of phyhidans' activities and degree of protection atainned by patients are: 1) the number of consults by doctor-hour/year; 2) the number of possible consults; 3) the mean number of consults by pregnants; 4) the ratio between registrations and consults (other than the first) by month; 5) mean age of pregnancy at the time of registration. These data are examined in relation to the quality of the services, i. e., doctor's presence, nurses, internation facilities, laboratory, prescriptions, courses and social care. It seems that those indexes exhibit not only the quantity of services offered but as well, their quality. Ten prenatal services were observed during a period of 4 years. Their activities were evaluated through the indexes mentioned, and a low productivity was found in their majority, with too high number of vacant hours and a small number of consults. The assumed relationship between quality of services and a higher prenatal center attendance is not clear, unless where the service offer is intensive.

2100 downloads

Avaliação quantitativa de serviços de pré-natal
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Ciari Jr., Cyro

; Santos, Jair L. F.

; Almeida, Pedro Augusto Marcondes de

Revista de Saúde Pública

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dec 1972, Volume 6 N. 4 Pages 361 - 370

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

2925 downloads

10.

Estimativas do nível de mortalidade e de esperança de vida para o Estado de São Paulo, Brasil, em 1970
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Santos, Jair L. F.

Revista de Saúde Pública

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sep 1972, Volume 6 N. 3 Pages 269 - 272

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resultados preliminares do Censo Demográfico de 1970, são utilizados para a determinação do nível de mortalidade no Estado de São Paulo, Brasil. Através da teoria de populações estáveis e de tábuas de vida modelo, encontrou-se tábuas de sobrevivência para os sexos masculino e feminino. Acredita-se que estas tábuas refletem as condições de mortalidade vigentes nos períodos próximos a data censitária.

Preliminary results of the 1970 Demographic Census in Brazil lead the author to determining the mortality level for the State of São Paulo, Brazil. Life Tables for males and females were found through stable population theory and model life tables. It is believed that those tables reflect mortality conditions of the State of S. Paulo during the period close to me Census date.

847 downloads

11.

Sobre a força de mortalidade na construção de tábuas de sobrevivência
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Santos, Jair L. F.

Revista de Saúde Pública

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sep 1972, Volume 6 N. 3 Pages 263 - 267

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

A construção das tábuas de sobrevivência vem sendo, recentemente, simplificada através da pressuposição de constância da força de mortalidade para cada grupo etário. Neste trabalho, mostram-se vantagens adicionais de tal suposição, tanto de caráter conceitual como de cálculos.

Life tables construction has been simplified through the assumption of a constant force of mortality in each age group. In this paper further advantages are shown, concerning both the conceptual nature and simpler calculations derived from that assumption.

1879 downloads

12.

Relação do tempo de uso de anticoncepcionais hormonais orais e tempo para conceber
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Ciari Jr., Cyro

; Santos, Jair L. F.

; Castilho, Eucides Ayres de

Revista de Saúde Pública

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sep 1972, Volume 6 N. 3 Pages 273 - 281

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Observou-se um total de 565 mulheres pareadas segundo idade, nível sócio-econômico e estado de saúde, divididas em quatro grupos. Um grupo controle com 155 mulheres e três grupos de estudo sendo: grupo I com 162 mulheres que tomaram anticoncepcional hormonal oral durante um ano; grupo II com 127 mulheres que tomaram o mesmo anticoncepcional por dois anos e o grupo III, com 121 mulheres, repetiu as mesmas condições por três anos. Todas tomaram o mesmo anticoncepcional sob a mesma forma. Feitas as curvas de freqüência relacionando tempo de uso com tempo para conceber, verificou-se uma significativa diferença entre as curvas dos grupos controle e I em relação aos grupos II e III. O material foi submetido à análise de variância que confirmou os resultados das curvas. Conclui-se que o uso de anticoncepcionais hormonais orais, a partir do segundo ano, interfere com o sistema reprodutor determinando um aumento de prazo para conceber em relação aos grupos controle e de um ano de uso.

A total of 565 women was partioned in four groups: the control group with 155 women, who started the sexual life without any contraceptive control; group I, with 162 women who had been taking oral contraceptive during a period of one year, starting at the beginning of their sexual lifes; group II, with 127 women who had "been taking the same oral contraceptive during a period of 2 years starting at the beginning of their sexual lifes; group III, with 121 women who repeated the same procedure during a period of 3 years. All the 565 women had the same social economic status and the same health conditions; were between 19 and 25 years old and used the contraceptive in a same way. The frequency distributions of time required for conception showed a clear difference between groups control and I as compared to groups II and III. The analysis of variance confirmed the difference. Based on these results, it is concluded that oral hormonal contraceptive after the second year of continous use interfer with the reproductive system, this determining a larger time required for conception.

13353 downloads

13.

Relação do tempo de uso de anticoncepcionais hormonais orais e tempo para conceber
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Ciari Jr., Cyro

; Santos, Jair L. F.

; Castilho, Eucides Ayres de

Revista de Saúde Pública

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sep 1972, Volume 6 N. 3 Pages 273 - 281

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

3423 downloads

14.

Sobre a força de mortalidade na construção de tábuas de sobrevivência
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Santos, Jair L. F.

Revista de Saúde Pública

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sep 1972, Volume 6 N. 3 Pages 263 - 267

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

663 downloads

15.

Estimativas do nível de mortalidade e de esperança de vida para o Estado de São Paulo, Brasil, em 1970
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Santos, Jair L. F.

Revista de Saúde Pública

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sep 1972, Volume 6 N. 3 Pages 269 - 272

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

594 downloads

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