检索结果-南通市图书馆

Empirical Model to Calculate the Thermodynamic Wet-Bulb Temperature of Moist Air

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Engineering（科研） 2014年第9期6卷 500-506页

作者： Melitón Estrada-Jaramillo Iván Vera-Romero José Martínez-Reyes agustina Ortíz-Soriano Edgar Barajas-Ledesma Trajectory of Educational Innovation University of the Ciénega of Michoacán State Sahuayo México Trajectory of Energy Engineering University of the Ciénega of Michoacán State Sahuayo México

An equation model for calculating the adiabatic temperature of the wet-bulb thermometer has been obtained empirical fit through a meteorological database, specificly a trough relative humidity and air temperature. A comparison of the results of calculations with the use of this equation and from meteorological database was made. The model deducted of the comparison is valid for a dry bulb temperature range of 3°C to 35°C and for relative humidity percentage in a range of 7% to 97%. Normalized errors are less than 5.5%. It means a maximum variation of 0.55°C from data. However, this variation from error represents only 3.6% of the data sample. The equation model was satisfactory.

关键词： Wet-Bulb Temperature Equation Dry-Bulb Temperature Relative Humidity Dry Solar Technologies Humidified Gas Turbines

Degradation of nucleic acids and nucleotides in several conditions with perspectives of retrieval: A review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Bioscience and Biotechnology 2014年第1期5卷 36-39页

作者： José Martínez Reyes Lenin Ejecatl Medina Orozco Melitón Estrada Jaramillo Iván Vera Romero agustina Ortiz Soriano Trajectory of Educational Innovation University of the Ciénega of Michoacán State Sahuayo Méxio Trajectory of Energy Engineering University of the Ciénega of Michoacán State Sahuayo Méxio Trajectory of Food Genomics University of the Ciénega of Mi-choacán State Sahuayo Méxio

Deoxyribonucleic acid (DNA) or oligonucleotides, can be modified in several ways as chemical degradation by electrophilic reaction, attack of radicals, hydrolytic deamination or oxidative damage caused by ionizing radiation. This work discussed these degradation mechanisms, determining the effects on these biomolecules. The actual knowledge about DNA damages only permits partial enzymatic repair treatments.

关键词： DNA Chemical Degradation

PKC Is a Target to Modulate the Expression of Receptor Mediated Endocytosis (RME) Mice Macrophages BALB/c for Optimizing the Phagocytosis toward Candida albicans

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Immune Based Therapies, Vaccines and Antimicrobials 2013年第4期2卷 44-48页

作者： Adi Prayitno Elyana Asnar Okid Parama Astirin Anief Nur Artanti Meutia Srikandi Fitria Eva agustina Perwitasari Suhartono Taat Putra Departement of Pathobiology Faculty of Medicine University of Airlangga Surabaya Indonesia Department of Biology Faculty of Mathematics and Natural Science University of Sebelas Maret Surakarta Indonesia Department of Dental and Oral Disease Faculty of Medicine University of Sebelas Maret Surakarta Indonesia Department of Pharmacy Faculty of Mathematics and Natural Science University of Sebelas Maret Surakarta Indonesia

Introduction: The existence of receptor-mediated endocytosis (RME) means that selectivity and selectivity occurs in capturing macromolecules. Protein kinase C (PKC) which can be expressed by almost all cells are proteins important in signal transduction groove that plays a role in a number of cell activity, e.g. phagocytosis. Aims: The purpose of this study is to determine the expression of RME after modulating the PKC which is characterized by the number of Candida albicans cells attached to the surface of macrophages. Methods: Peritoneal macrophages cultured BALB/c mice are treated with PMA and/or bisindolylmaleimides of providing levels of 5 ng/ml to 100 ng/ml for 10 minutes. Then immediately insert Candida albicans and observe every 30 minutes for 120 minutes. The research design used the same subject. Data collected in the form of number of Candida albicans cells attached to the surface of macrophages are analyzed with ANOVA statistical test (one way) to show the differences between treatments. Results: The test shows statistically significant difference in the number of Candida albicans cells attached to the surface of macrophages after administration of various levels of PMA (p 0.001). The higher level of PMA is given, the more active the PKC is, the more RME are formed, the more Candida albicans cells attached to the surface of macrophages. Another result shows statistically significant difference in the number of Candida albicans cells attached to the surface of macrophages after administration of various levels of bisindolylmaleimides (p 0.001). The higher level of bisindolylmaleimide is given, the less active PKC is, and the less RME are formed, the less Candida albicans cells attached to the surface of macrophages. Conclusion: Research shows that activator PKC (PMA) can increase the expression of RME on macrophages. Another research shows that inhibitor PKC (bisindolylmaleimides) can decrease the expression of RME on macrophages.

关键词： PMA Bisindolylmaleimides RME PKC Phagocytosis

Biogas Estimation as a Basis for the Implementation of an Intermunicipal Landfill: Michoacan, Mexico

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Protection 2014年第7期5卷 577-582页

作者： Iván Vera-Romero José Martínez Reyes Claudio C. Espíritu-Barragán Melitón Estrada-Jaramillo agustina Ortiz-Soriano Lenin E. Medina-Orozco Trajectory of Educational Innovation University of the Cienega of Michoacan State Sahuayo Mexico Trajectory of Energy Engineering University of the Cienega of Michoacan State Sahuayo Mexico Trajectory of Food Genomics University of the Cienega of Michoacan State Sahuayo Mexico

Municipal solid waste (MSW) generated in the municipalities of Sahuayo, Jiquilpan and Venustiano Carranza in Michoacan, is deposited in open dumps becoming hot spots for health and the environment. The total population in the three municipalities is 130,497 habitants, with a per capita waste production estimated in 0.718 kg·hab-1·day-1 (34,203 t·yr-1). The aim of this study was to estimate the formation of biogas for power generation from the decomposition of waste. The model used was the mexican model of biogas (version 2.0), assuming a useful life of 21 years of the landfill at a cost of 0.19 USD per kWh, the average CFE rate for municipal public lighting. Four possible scenarios were evaluated: one optimal recovering 68% of the biogas (10,095 tonnes of methane in 20 years), having a savings concept in electricity of 8,015,252 USD;in the second case (optimistic intermediate), it is assumed that it obtains 61% of biogas (9046 tonnes of methane) with benefits in power generation for 7,159,679 USD;the third case (pessimistic intermediate) estimating 48% of biogas recovered, being captured 7118 tonnes of methane with profits of 5,633,846 USD into electrical energy, the latter case (pessimistic), assuming 40% of biogas recovered, transforming 4672 tonnes of methane resultant in an economic benefit of 3,697,324 USD for electricity generation. The results justify the investment of the landfill and it is a measure to mitigate climate change and disease prevention.

关键词： Municipal Street Lighting Alternative Energy Public Health

Geochemical Prospection of the Chapala Ciénega at Michoacán State

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Geosciences 2014年第9期5卷 1007-1011页

作者： José Martínez Reyes Ivan Vera Romero Meliton Estrada Jaramillo agustina Ortiz Soriano Ignacio Moreno Nava Francisco Gabriel Montes Ayala Francisco García ávalos Ernesto Mendez Ruiz 1University of the Ciénega of Michoacán State Sahuayo México 2Michoacan Society of History Archaeology and Geography A.C. La Palma de Jesús México Michoacan Society of History Archaeology and Geography A.C. La Palma de Jesús México University of the Ciénega of Michoacán State Sahuayo México

The geochemical prospection as a branch of Applied Geochemistry or “Geochemistry of the Landscape” studies the spatial and temporal location of geochemical anomalies in order to locate geological resources of economic value. The Ciénega de Chapala zone in Michoacán is located east of the Citala rift hosting a geological system that leads to regional hydrothermal activity, mainly the Pajacuaran and Ixtlan failures. The regional geothermics include a superficial hydrothermalism consisting of springs and wells of hot water with temperatures between 48°C and 94°C in Ixtlan de los Hervores and mud volcanoes in the water with temperatures between 48°C and 94°C in Ixtlan de los Hervores and mud volcanoes in the Los Negritos. The waters and gases of these hydrothermal manifestations have physicochemical characteristics that indicate the presence of geothermal fluids. To search for possible presence of minerals of economic value, a study of elemental chemical analysis was performed by scanning electron microscopy in samples of rock of the sierra de Pajacuaran, the result of the analysis is clearly abnormal values which may be indicative a geochemical anomaly as well as the possible presence of minerals of economic value in the region. Given the above, the area of the Ciénega de Chapala in Michoacán is a zone where work can be continued both geothermal and mineralogical exploration by conventional techniques or even totally innovative technologies.

关键词： Geochemical Prospection Ciénega Michoacán

Effect of Daily Consumption of <i>Lactobacillus reuteri </i>CRL 1098 on Cholesterol Reduction in Hypercholesterolemic Subjects

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition Sciences 2015年第17期6卷 1583-1590页

作者： agustina Malpeli Marí a Pí a Taranto Ricardo C. Cravero Marina Tavella Victoria Fasano Dimas Vicentin Guillermina Ferrari Graciano Magrini Elvira Hé bert Graciela Font de Valdez Ana M. Varea Julio M. Tavella Horacio F. Gonzá lez IDIP—Instituto de Desarrollo e Investigaciones Pediá tricas “Prof. Dr. Fernando E. Viteri” (Hospital de Niñ os de La Plata Ministerio de Salud/Comisi&oacute n de Investigaciones Cientí ficas de la Pro-vincia de Buenos Aires) La Plata Argentina CERELA—Centro de Referencia para Lactobacilos (CONICET) Tucum&aacute n Argentina Sancor CUL Departamento de Investigaci&oacute n Innovaci&oacute n y Desarrollo Sunchales Argentina

The effect of daily consumption of a yogurt containing Lactobacillus reuteri CRL 1098 on the lipid profile of hypercholesterolemic subjects was evaluated by performing a prospective, randomized, double-blind, cross-over placebo controlled clinical study. Participants consumed daily a yogurt containing L. reuteri CRL 1098 or a placebo for four weeks, separated by a wash-out period. Total cholesterol, triacylglycerol, high-density (HDL) and low-density (LDL) lipoprotein levels were assessed at the beginning and at the end of each period. We found a statistically significant reduction of total (–7.86 g/dl) and LDL (–7.02 g/dl) cholesterol in absolute changes (before-after) as well as a decreasing trend in the group receiving the yogurt containing L. reuteri with respect to the placebo group, without detecting changes in HDL-cholesterol and triacylglycerol levels. Our results suggest that low amounts of yogurt (125 g/day) and low doses of the CRL 1098 strain (106 CFU) are sufficient to reduce total and LDL-cholesterol levels in hypercholesterolemic subjects.

关键词： Lactobacillus reuteri Hypercholesterolemia Cardiovascular Risk Probiotics Functional Foods