检索结果-南通市图书馆

Influence of Photoperiod over Morphometric and Hematological Parameters of Juvenile Piracanjubas （Brycon orbygnianus）

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Agricultural Science and Technology(B) 2016年第5期6卷 350-359页

作者： Monica Rodrigues Ferreira Machado] Eliane Aparecida de Andrade Estefania de Souza Andrade Daniella Aparecida de Jesus Paula Julia Alvarenga Oliveira Adriano Carvalho Costa Ana Paula Peconick luis David Solis Murgas Department of Biological Science Federal University of Goias (UFG) Campus Cidade Universitaria CEP 75801-615 JataiGoias Brazil Department of Veterinary Medicine Cdmpus Universitario Federal University of Lavras (UFLA) Lavras Minas Gerais CEP3 7200-000 Brazil Department of Animal Science Federal Institute of Rio Verde (IFR V) Rio Verde Goias CEP 75901-970 Brazil

The aim of this study was to evaluate morphometric and hematological parameters of juveniles Piracanjubas treated with two distinct photoperiod. Twenty nine fish with 100 g, in a factorial design were performed in 18 h light：6 h dark （18L：6D） and 6L：lSD two different photoperiod, and morphometric and hematological parameters were evaluated at 45 d and 90 d after photoperiod treatment. Benzocaine 1% was used for euthanasia. Fish were weighed and measured, so as visceral fat, liver and gonads. Hematocrit, total count of white cells, lymphocytes and neutrophils were counted. Results showed that there was no significant relationship between bodyweight and standard length. Significant interaction （P = 0.00018） had been found between the fat index （FI） and gonado-somatic index （GSI） and the photoperiod and time. At 90 d, the fish kept in 18L：6D had a lower rate of fat than the fish kept in 6L：18D （P 〈 0.05）. The GSI was higher in the group 6L.＇18D compared with the 18L：6D （P 〈 0.005）. There was no interaction between photoperiod and period of treatment for total leukocyte count, however with 90 d, the total leukocyte count was decreased （P 〈 0.05）. Moreover, decrease of the hematocrit from 58.1% to 46.9% and an increase of lymphocytes from 31.5% to 43.5% had been found in fish kept in 18L：6D after 90 d （P 〈 0.05）. Fish kept in 6L：ISD presented an increase in segmented neutrophils and lymphocytes （P 〈 0.05）. It is concluded that photoperiod maintained at 6L： 18D for Piracanjubas permits a greater gonadal development and an amount of immune cells over the photoperiod maintained in 18L： 6D.

关键词： Circadian rhythm fish maturity cellular immune response photoperiod.

Electric-Jet Assisted Layer-by-Layer Deposition of Gold Nanoparticles to Prepare Conducting Tracks

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Natural Science 2009年第2期1卷 142-150页

作者： S. R. Samarasinghe Isabel Pastoriza-Santos M. J. Edirisinghe M. J. Reece luis Liz-Marzán M. R. Nangrejo Z. Ahmad 不详

A suspension of 15nm diameter gold nanoparti-cles has been deposited along a line on a silicon substrate with the assistance of a jet generated in an electric field. In order to control the evaporation of the solvent used to suspend the gold nanoparticles, a heating device was used to change the substrate temperature. Layer-by- layer deposition enabled the direct writing of gold tracks having an electrical resistivity of 1.8 × 10-7 Ωm, only about an order of magnitude above the electrical resistivity of bulk gold.

关键词： Gold Electrohydrodynamic Jet Direct Write Track Electrical Conductivity

Liver Histology after Chronic Use of Alcohol and Exercise Training in Rats

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 Pharmacy and Pharmacology 2018年第1期6卷 52-60页

作者： Marina Silva de Lucca Eveline Tortes Pereira Thamires Righi Camilo Amaro de Carvalho Clayton Israel Nogueira Daise Nunes Queiroz da Cunha Antonio jose Natali Luciana Moreira Lima Department of Medicine and Nursing Federal University of Vigosa MG CEP 36. 570-900 Brazil Postgraduate Program in Physical Education Federal University of Vigosa MG CEP 36. 5 70-900 Brazil Department of Biochemistry and Molecular Biology Federal University of Vicosa MG CEP 36. 570-900 Brazil Department of Veterinary Medicine Federal University of Vigosa MG CEP 36.570-900 Brazil

Objectives： To investigate the effects of physical training on the liver morphology and morphometry after chronic use of alcohol in rats. Methods： Twenty-four Wistar rats were housed in cages with controlled environment and randomly divided into four groups according to treatment received. In the initial treatment, alcohol was administered to SA （sedentary alcohol） and EA （exercise alcohol） groups. After four weeks, physical training program was held on a treadmill with EA and EC （exercise control） groups. Area, perimeter, maximum and minimum diameter and form factor of nucleus and cytoplasm of hepatocytes were analyzed. Key findings： Micro-vesicular fatty degeneration, predominantly pericentrolobular, of mild to moderate intensity, was found especially in animals treated with alcohol. EC group showed nucleus area greater than the nucleus area of EA and SA groups. The form factor was lower in the EC group than in the EA group. EA group showed maximum cytoplasm diameter is smaller than in SC （sedentary control） group. Conclusions： Physical training for two weeks was not enough to suppress histopathologic changes in the liver caused by chronic use of alcohol in rats. Chronic use of alcohol seems to have minimized the beneficial effect of physical training in the nucleus area of hepatocytes.

关键词： Alcohol exercise steatosis alcoholic liver disease animal model.

Use of Ointment or Aqueous Extract of Neem(Azadirachta indica)for the Repair of Experimental Skin Lesions in Sheep

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Plant Sciences 2020年第5期11卷 693-706页

作者： Tiago luis Eilers Treichel Tales Dias do Prado Anaiza Simao Zucatto do Amaral Yeury de Sousa Gomes Lucas da Rocha Pinto Guilherme Toledo Martins Arthur Toledo Martins Didier Quevedo Cagnini Veterinary Surgery Service Faculty of Veterinary MedicineUniversity of Rio VerdeRio VerdeBrasil Clinical Laboratory Faculty of Veterinary MedicineUniversity of Rio VerdeRio VerdeBrasil Faculty of Veterinary Medicine University of Rio VerdeRio VerdeBrazil Department of Morphophysiology Institute of Biological SciencesUniversidade Federal de JataiJataiBrazil

The skin is considered the largest organ in the body and this protective barrier can be broken in some situations. The wound healing process is a complex mechanism. Based on the difficulties encountered for treatment, alternatives are sought and one of the options may be phytotherapy. Azadirachta indica, known as Nim, is perhaps one of the most widely known and used medicinal plants. This research aimed to evaluate the viability and effectiveness of therapy with Neem, in the form of ointment or aqueous leaf extract. Eighteen sheep were randomly divided into three groups and subjected to the creation of a 7 × 7 cm excision wound on the chest wall. After, treatment was started according to each group. Animals in G1 did not receive any treatment;in G2, the ointment of Neem was applied and animals in G3 were treated with the preparation of an aqueous solution of Neem leaves. Photographic images were recorded, in addition to blood collection for complete blood count and tissue biopsy. The wound area measurements showed no statistically significant difference between the groups (p > 0.05). Fibrinogen levels were not different, and there was no difference in platelet levels. In the histopathological evaluation, G2 registered a greater presence of ulceration, when compared to G3, on day 7. On day 14, G2 still had a greater amount of ulceration, differentiating from G1. G2 also registered a greater presence of crust and a higher score of granulation tissue, in the last evaluation period, compared to G3. Analyzing the results obtained in this research and taking into account the conditions in which the study was carried out, it is possible to conclude that the use of Neem was not effective in accelerating the rate of wound healing in sheep.

关键词： Phytotherapy Sheep Skin Wound

Chemical, Starch Digestibility and Sensory Characteristics of Durum Wheat/Unripe Whole Banana Flour Blends for Spaghetti Formulation

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 2014年第3期5卷 264-270页

作者： Perla Osorio-Díaz José J. Islas-Hernández Edith Agama-Acevedo Sandra L. Rodríguez-Ambriz María E. Sánchez-Pardo luis A. Bello-Pérez Center for Development of Biotic Products National Polytechnique Institute Yautepec México National School of Biological Sciences National Polytechnique Institute México D.F. México.

Excess weight and obesity are serious public health problems, which should be addressed through encouraging the consumption of foods with high amount of low digestible carbohydrates. The objective of this study was to put together spaghetti that blends unripe banana whole flour (UBWF) and durum wheat of different levels and to evaluate their chemical composition, starch digestibility and sensory characteristics. Spaghetti with 15%, 30%, and 45% of UBWF and a control spaghetti (100% durum wheat flour) were put together. The protein content decreased (10.42% to 7.74%) as the UBWF level was increased in the composite, while the amount of ash (0.87% to 1.54%) and total starch (70.24% to 73.71%) increased. Spaghetti with 15% and 45% of UBWF had similar available starch content. The addition of UBWF increased the resistant starch content from 1.98% to 10.91%, and consequently the indigestible starch fraction (14.00% to 27.29%). Spaghetti with 30% of UBWF had good consumer acceptability and was ranked higher than the control sample.

关键词： Starch Digestibility Banana Spaghetti Indigestible Fractio

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

牙髓微生物学新进展：致病原及其定植模式

中国口腔医学继续教育杂志 2010年第6期13卷 1-8页

作者： jose F Siqueira Jr Isabela N Rocas 郭惠杰（译）岳林（审）不详北京大学第二临床医学院口腔科北京市西直门南大街11号100044 北京大学口腔医学院牙体牙髓科北京市海淀区中关村南大街22号100081

众所周知，微生物感染是根尖周炎最重要的致病因素，有效清除或最大限度减少致病微生物已成为取得治疗成功的关键因素。只有深刻理解牙髓感染的两个主要问题．才能建立有效的治疗策略：①不同的根尖周炎类型和不同的感染类型所涉及的根... 详细信息

众所周知，微生物感染是根尖周炎最重要的致病因素，有效清除或最大限度减少致病微生物已成为取得治疗成功的关键因素。只有深刻理解牙髓感染的两个主要问题．才能建立有效的治疗策略：①不同的根尖周炎类型和不同的感染类型所涉及的根管内菌群的组成（亦即明确哪些是主要的致病原）；②微生物茵群在根管内的定植模式（亦即它们在感染组织中的分布状况）。本文就这两方面的最新进展作一回顾。恰当解释和合理应用这方面的知识有助于提高临床治疗水平以及改善疾病的预后。

关键词：根尖周炎牙髓感染牙髓致病原根管治疗

Elevated soluble fas blood concentrations in patients dying from spontaneous intracerebral hemorrhage

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Critical Care Medicine 2023年第2期12卷 63-70页

作者： Leonardo Lorente María M Martín Antonia Pérez-Cejas luis Ramos-Gómez Jordi Solé-Violan Juan J Cáceres Alejandro Jiménez Agustín F González-Rivero Department of Intensive Care Hospital Universitario de CanariasLa Laguna 38320TenerifeSpain Department of Intensive Care Hospital Universitario Nuestra Señora de CandelariaSanta Cruz de Tenerife 38010TenerifeSpain Department of Laboratory Hospital Universitario de CanariasLa Laguna 38320TenerifeSpain Department of Intensive Care Hospital Universitario de La PalmaBreña Alta 38713Spain Department of Critical Care Hospital Universitario de Gran Canaria Dr NegrinLas Palmas de Gran Canaria 35010Spain Department of Critical Care Universidad Fernando Pessoa CanariasLas Palmas de Gran Canaria 35450Spain Department of Intensive Care Hospital InsularLas Palmas de Gran Canaria 35016Spain Research Unit Hospital Universitario de CanariasLa Laguna 38320TenerifeSpain

BACKGROUND Several studies of spontaneous intracerebral hemorrhage(SICH)patients have shown apoptotic changes in brain samples after hematoma ***,there have been no data on the association between blood concentrations of soluble fas(sFas)(the main surface death receptor of the extrinsic apoptosis pathway)and the prognosis of spontaneous intracranial hypotension(SIH)*** To determine whether there is an association between blood sFas concentrations and SICH patient *** We included patients with severe and supratentorial *** was defined as having Glasgow Coma Scale<*** determined serum sFas concentrations at the time of severe SICH *** We found that non-surviving patients(n=36)compared to surviving patients(n=39)had higher ICH score(P=0.001),higher midline shift(P=0.004),higher serum sFas concentrations(P<0.001),and lower rate of early hematoma evacuation(P=0.04).Multiple logistic regression analysis showed an association between serum sFas concentrations and 30-d mortality(odds ratio=1.070;95%confidence interval=1.014-1.129;P=0.01)controlling for ICH score,midline shift,and early hematoma *** The association of blood sFas concentrations and SICH patient mortality is a novel finding in our study.

关键词： Spontaneous intracerebral hemorrhage Soluble fas Apoptosis Patients Mortality

用氧膦Cyanex925从盐酸溶液中萃取Au(Ⅲ)的研究

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

新疆有色金属 1998年第3期21卷 54-58,65页

作者： M.A.Barroso F.A.lopez A.Sostre F.J.Alguacil 李秀琴新疆有色金属研究所

研究用氧膦Cyanex925从盐酸溶液中萃取Au(Ⅲ),萃取作用与平衡时间、温度、有机稀释剂和金、萃取剂、盐酸的浓度有关。该萃取体系对金具有选择性。试验测出了20℃时Au(Ⅲ)的平衡负载等温线。试验数据说明金在萃取体系中形成了络合物HAuCl... 详细信息

研究用氧膦Cyanex925从盐酸溶液中萃取Au(Ⅲ),萃取作用与平衡时间、温度、有机稀释剂和金、萃取剂、盐酸的浓度有关。该萃取体系对金具有选择性。试验测出了20℃时Au(Ⅲ)的平衡负载等温线。试验数据说明金在萃取体系中形成了络合物HAuCl_4L_2(L为萃取剂Cyanex925),萃取反应的logK°_萃=8.1,以水解吸有机相萃取的金,也介绍了有关Cyanex925萃取盐酸的实验数据。

关键词：金萃取萃取剂盐酸溶液

Estimation of Genetic Parameters of Turiacu Pineapple Clones and Genetic Correlation between Traits

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Agricultural Sciences 2017年第11期8卷 1253-1262页

作者： Guilherme Barbosa Abreu Marcos Miranda Toledo Marcelo Mattos Cavallari jose Ribamar Gusmao Araujo Antonia Alice Costa Rodrigues Luiz Gustavo de Lima Melo Augusto Cesar Vieira Neves Junior Embrapa Cocais(CPACP) Sao LuisBrazil Embrapa Pecuária Sudeste(CPPSE) Sao CarlosBrazil Universidade Estadual do Maranhao(UEMA) Sao LuisBrazil Universidade Federal Rural de Pernambuco(UFRPE) RecifeBrazil

This study aimed to estimate genetic parameters of Turiaçu pineapple clones using mixed models;and estimate genetic correlation coefficient between traits, to provide important information to breeding programs. For this, 19 pineapple plants were visually selected and its slips were collected and planted in a single environment and nine traits were evaluated. The genetic parameters of most evaluated traits presented significant differences between the 19 clones. Some traits, such as Fusarium wilt resistance, showed high magnitudes of heritability. Clones did not differ in relation to total titratable acidity (TTA) and total soluble solids (TSS). However, these traits, which have implications to fruit quality, showed to be negatively correlated to fruit mass (-0.46 and -0.67). The results indicate that the population of Turiaçu pineapple is suitable for selection, especially for Fusarium wilt resistance. Also, Turiaçu clones can be used in breeding programs of pineapple.

关键词： Quantitative Genetics Plant Breeding Ananas comosus