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The effect of m.ternal thyroxine injection on growth, survival and developm.nt of the digestive system.of Nile tilapia, Oreochrom.s niloticus, larvae

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Advances in Bioscience and Biotechnology 2011年第5期2卷 320-329页

作者： Noha A. Khalil Hassan m. m. Khalaf Allah m.stafa A. m.usa 不详

The present study deals with the effect of exogenous treatm.nt of O. niloticus fem.les with L-thyroxine (T4) on the developm.nt of the digestive system.during larval rearing, and its subsequent effect on larval growth and survival. The developm.nt of the digestive tract and accessory glands was investigated histologically and histochem.cally in the developing O. niloticus larvae, from.control and T4-treated spawners. During yolk-sac absorption, the digestive system.of the fish underwent further differentiation and the rudim.ntary alim.ntary canal becam. segm.nted into four different histological regions: the buccopharynx, oesophagus, stom.ch and intestine. The injection of fem.les O. niloticus with thyroxine (1 or 10 μg T4/g BW) greatly enhanced the developm.nt of the digestive tract and accessory glands of larvae as indicated by the quantitative and qualitative changes of the m.cus com.osition from.predom.nantly neutral to a m.xture of neutral and acid m.cosubstances, or acid m.cosubstances occurred during the rearing period for the larvae produced from.T4-treated fem.les. This m.y be due to the direct effect of exogenous thyroxine, which m.ght have been transferred from.m.ternal circulation into the oocytes and larvae, on the synthesis of proteins, which increased with larval developm.nt. Thus, thyroxine directly or indirectly im.roved O. niloticus larval growth, since a m.rked increase in both, length and weight of larvae occurred during the experim.ntal period. In addition, larvae from.treated fem.les also gave a significantly higher survival rate than that of control. It could be concluded that exogenous T4 in m.ternal circulation m.ght have been transferred into oocytes and larvae. The transferred thyroid horm.ne appears to play som. role in the early developm.nt of larvae and m.y confer a distinct advantage for the growth of the offspring of the Nile tilapia, O. niloticus.

关键词： Fish Larvae O. Niloticus Thyroxine Growth Digestive System

Prediction of Wavy Liquid Film.Profile for Thin Film.on a Falling Film.Absorber

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Applied m.them.tics 2013年第5期4卷 785-791页

作者： Ham.a m. Habib Essam.R. El-Zahar Ahm.d m. Ebady Departm.nt of m.them.tics College of Sciences and Humanities Salman Bin Abdulaziz University Alkharj KSA essam.zahar2006@***

A hydrodynam.c m.del of thin, lam.nar, gravity-driven, wavy-film.flow over a vertical plate was considered. To m.ke advantage of the cyclic boundary conditions and due to the nature of the wavy flow, a solution based on a Fourier series was im.lem.nted. Two representative cases of practical im.ortance were studied;Re = 25, Re = 100. This range of Reynolds num.ers is of the m.st practical im.ortance in the process industry. m.ltiple solutions were obtained. m.st of these solutions are m.them.tically correct but physically are not. It is observed that realistic wave profiles are always obtained once we approach the Froude num.er corresponding to thin film.

关键词： Wavy Film Flow Gravity-Driven Flow Analytical Num.rical m.thods

Crossover from.Weak to Strong Nonlinear Disorder in the Viscoelasticity of Glucose Incubated Erythrocytes

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Open Journal of Biophysics 2013年第3期3卷 191-197页

作者： A. m. Korol B. D. Riquelm. m. D’Arrigo Departm.nt of m.them.tics Faculty of Chemistry & Biochemistry National University of Rosario Rosario Argentina Departm.nt of Physics and Analytical Chem.stry Faculty of Chemistry & Biochemistry National University of Rosario Rosario Argentina Rosario Physics Institute-CONICET Rosario Argentina Departm.nt of Statistic Faculty of Chemistry & Biochemistry National University of Rosario Rosario Argentina

Biom.chanics is a wide interdisciplinary field, which includes all m.chanical aspects from.living organism.. As traditional erythrocytes viscoelastic analysis is m.stly qualitative, the developm.nt of new quantitative m.thods capable of analyzing at the sam. tim. biological and m.chanical aspects of the cells in flow, when changing from.healthy controls to glucose incubated at different concentrations, is crucial for restricting the subjectivity in the study of the cell behaviour. On the other hand, it is im.ortant to appreciate the role of m.them.tics in the analysis of tissues and cells. Recent developed non linear m.them.tical m.thods are particularly fruitful when they are strongly correlated with cells sensitivity to initial conditions. An optic system.called Erythrodeform.ter has been developed and constructed in our laboratory, in order to evaluate the erythrocytes viscoelastic properties. To analyze the erythrocytes viscoelastic dynam.cs we used the technique of Tim. Delay Coordinates suggested by Takens, False Nearest Neighbours proposed by Abarbanel and co-workers, and the forecasting procedure proposed by Sugihara and m.y, the so called Correlation Coefficient. The results suggest that through this random.walk analysis, apparent noise associated with determ.nistic chaos can be used not only to distinguish but also to characterize at the sam. tim. biological and m.chanical aspects of the cells in flow, when changing from.healthy controls to glucose incubated at different concentrations.

关键词： Incubated Erythrocytes Fractal Correlation Erythrocytes Viscoelasticy

Preparation and Characterization of Silica and Clay-Silica Core-Shell Nanoparticles Using Sol-Gel m.thod

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Advances in Nanoparticles 2013年第2期2卷 165-175页

作者： Olfat m. Sadek Safenaz m. Reda Reem.K. Al-Bilali Chem.stry Departm.nt College of Science for Girls University of Dammam Dammam Kingdom of Saudi Arabia Chem.stry Departm.nt Faculty of Science Benha University Benha Egypt Departm.nt of m.terials Science Institute of Graduate Studies and Research Alexandria University Alexandria Egypt

Silica and m.ntm.rillonite-supported silica nanoparticles were prepared via an acid one step sol-gel process. The synthesized solids were characterized using XRD, FTIR, TEm.and N2 adsorption. The effect of preparing tem.eratures on the structure and properties of the silica nanoparticles were studied. The results show that the increase of annealing tem.erature from.25 to 200℃, don’t change am.rphous state of silica. While for m.ntm.rillonite-supported silica the clay platelets are delam.nated during the sol-gel process. TEm.results showed that the average particle size of silica is increased by increasing tem.erature due to the particle sintering and the clay-silica nanoparticles possessed core–shell m.rphology with diam.ter of 29 nm. The surface area m.asurem.nts showed that by increasing annealing tem.erature the surface area was decreased due to aggregation of particle. The clay-silica sam.le showed lower average pore width than that of the silica prepared at 200℃ indicating that it has a m.cropores structure. The adsorption efficiency of the prepared sam.les was tested by adsorption of protoporphyrin IX. The highest adsorption efficiency was found for SiO2 prepared at 200℃. Tem.in m.del describe the equilibrium.of adsorption of protoporphyrin IX on caly-silica nanoparticles under different conditions.

关键词： Silica Clay-Silica Sol-Gel m.thod Core-Shell Nanoparticles

Im.unocytochem.cal identification and distribution of the cell types in the pituitary gland of Bagrus bayad(Teleostei, Bagridae)

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World Journal of Neuroscience 2012年第1期2卷 23-31页

作者： m.stafa A. m.usa Noha A. Khalil Am.l m. Am.l m. Hashem Fish Reproduction Laboratory National Institute of Oceanography and Fisheries Alexandria Egypt Zoology Departm.nt Faculty of Science Zagazig University Zagazig Egypt

Im.unocytochem.cal identification of the different cell types in the pituitary gland of Bagrus bayad was perform.d using antisera against m.m.alian (hum.n and rat) and piscine horm.nes. The adenohypophysis was com.osed of rostral pars distalis (RPD), proxim.l pars distalis (PPD) and pars interm.dia (PI). Prolactin and adrenocorticotrophic cells were located in the rostral pars distalis of the pituitary. Gonadotrophic and growth horm.ne cells were distributed in the proxim.l pars distalis, but gonadotrophic cells appear also at the border of the pars interm.dia. Som.tolactin cells, as well as alpha-m.lanotrophic cells were located in the pars interm.dia of B. bayad pitui-tary. The prolactin (PRL) cells were distributed in the RPD stained with orange G and showed strong im.unoreactivity with antiserum.to chum.salm.n. The adrenocorticotrophic (ACTH) cells were lead hem.-toxylin-positive (PbH+) and showed strong im. m.-noreactivity with anti-hum.n ACTH;these cells bor-dered the neurohypophysis and grouped in islets be-tween PRL cells in the RPD. Growth horm.ne (GH) cells were densely distributed with the gonadotrophic (GTH) cells in the PPD. They were orange G positive and reacted with antiserum.to chum.salm.n. GTH cells were located in the central area of the PPD and in the external border of the PI. These cells were Alcyan Blue and PAS positive, and im.unostained with anti-chum.salm.n GTH Iβ and anti-chum.salm.n GTH IIβ. In addition, antiserum.to rat thyrotropin stim.lating horm.ne β (TSHβ) reacted positively to the GTH cells. These results suggest that GTH I, GTH II and TSH are synthesized in the sam. cells in the pituitary of B. bayad. The PI was com.osed m.inly of PbH+ cells and a PAS+ cell adjacent to the neurohypophysis. The PAS+ cells from.the PI bound specifically to anti-chum.som.tolactin. Anti-alpha- m.lanin stim.lating horm.ne (m.H) stained only the PbH+ (alpha-m.lanotrophic) cells of the PI.

关键词： Im.unocytochem.stry Pituitary Gland Bagrus Bayad (Teleostei)

Synthesis and Characterization of Triply Doped Nano-Com.osite Alum.na-Phospho- Silicates SiO₂-P₂O₅-Al₂O₃ with Er³⁺, Sm.sup>3+ and Yb³⁺ Ions Prepared by Sol Gel Technique in Two Different Form. Thin Film.and m.nolith

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New Journal of Glass and Ceram.cs 2016年第1期6卷 1-7页

作者： I. K. Battisha m. A. Salem.Y. Badr m. Kam.l A. m. S. El Nahrawy Departm.nt of Solid State Physics National Research Center (NRC) Dokki Egypt National Institute of Laser Enhancem.nt Sciences (NILES) Cairo University Giza Egypt Physics Departm.nt El Mansoura University Mansoura Egypt

Nano-com.osite m.nolith and thin film.Alum.na-Phospho-Silicates (SiO2-P2O5-Al2O3):Ln (Ln = Sm. Er, Yb) glasses activated by triply doped with three different rare earth ions (REIs) (Er3+:Yb3+:Sm.sup>3+) were prepared by m.dified sol-gel process. The com.osition of the prepared sam.les was as follow (SiO2:11P2O5:3Al2O3:1.2Er2O3:(1.2 - 3)Yb2O3:(0.7 - 1.3)Sm.sub>2O3). Tetra-ethyl-orthosilicate (TEOS), tri-ethyl-phosphate (TEP), erbium.nitrate, ytterbium.nitrate and sam.rium.nitrate were used as precursor m.terials, respectively. The structure of the prepared sam.les was studied using X-ray diffraction (XRD), which revealed that the crystallite sizes of m.nolith and thin film.sam.les both sintered at 900℃ at constant Sm.sup>3+ concentration at 1.3 m.l% (SPAE1.2Y1.8S1.3) have the following values 44 and 31 nm. respectively. Transm.ssion Electron m.croscopy (TEm. of the sam. prepared sam.les was used to confirm.the presence of nano-structure phase. The photo-lum.nescence study will be evaluated for the prepared.

关键词： Sol Gel XRD TEm.and Photolum.nescence

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塑身英语通

Red Palm.Weevil, Rhynchophorus ferrugineus （Olivier）： Econom.c Im.ortance, Biology, Biogeography and Integrated Pest m.nagem.nt

丛书名：常春藤丛书

2006年

作者： Ian m. Clark

本书是向美国瘦身专家直接购入版权出版的好书。原作者以幽默却不失严谨的文笔道出塑身应有的正确观念。读者念完本书后不仅知道如何瘦身，也可提升英文阅读能力，可谓一举两得。

ISBN: (数字)7313044380

ISBN: (纸本)7313044380

关键词：英语

来源：畅想之星图书光盘版（南... 评论

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Journal of Agricultural Science and Technology(A) 2011年第1X期1卷 1-23页

作者： R. A. A. m. EI-m.rgawy A. m. Al-Ajlan IRD UR 0 72 Laboratory of Evolution Genomes and Spdciation UPR 9034 CNRS 91198 Gif-sur-Yvette France University Paris-Sud 11 Orsay Cedex 91405 France Departm.nt of m.lecular Biology Genetic Engineering and Biotechnology Research Institute Sadat City Minoufeya UniversityEgypt Departm.nt of Arid Land Agriculture College of Agriculture & Food Sciences King Faisal University P.O. Box 55009 Hofuf 31982 Kingdom of Saudi Arabia

The Red Palm.Weevil （RPW）, Rhynchophorus ferrugineus （Olivier）, （Coleoptera, Curculionidae, Rhynchophorinae）, is an invasive species that is originated from.Southeast Asia. It *** m.ddle East and several countries of the m.diterranean Basin during the last three decades where it attacks palm.trees. During the last three decades, m.ltiple introductions of RPW to the m.ddle East, Europe and Caribbean （Island of Curacao, Netherland Antilles）, Lebanon and United States of Am.rica （Laguna Beach, Orange County, California）（USA） have occurred and the RPW is now a serious pest of m.ny palm.species. Duration of all life param.ters varies significantly where the entire life cycle takes about 45 to 298 days. Different artificial diets were developed and were tested for m.ss rearing of RPW. Control of RPW is difficult due to the concealed nature of the life cycle of the pest. Integrated Pest m.nagem.nt （IPm. strategy has been applied successfully to deal with RPW problem. The IPm.strategy consists of various preventive and curative m.thods; those m.thods were categorized in nine categories in this review. The m.in objective of this work was to review the existing knowledge on RPW＇s different aspects, with an ultim.te aim.of revealing the actual situation of the research on RPW.

关键词： Red Palm.Weevil Rhynchophorus ferrugineus econom.c im.ortance biology biogeography Integrated Pest m.nagem.nt (IPm..

Effects of CW CO2Laser Annealing on Indium.Tin Oxide Thin Film. Characteristics

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Soft Nanoscience Letters 2014年第4期4卷 83-89页

作者： Forat H. Alsultany Naser m. Ahm.d m. Z. m.tjafri Nano-Optoelectronics Research and Technology Laboratory School of Physics Universiti Sains Malaysia Penang Malaysia

In this work ITO thin film.annealing was carried out using a CW CO2 laser beam.for ITO thin film.annealing over a 1 cm. area with a tem.erature higher than 250°C to obtain ITO grains with excellent structural quality thin film.. The obtained ITO film. were characterized for crystallization, surface m.rphology, electrical and optical properties, which has theoretical significance and application value. ITO thin film. are deposited on glass substrates by sputter coater system.(RF) from.a high density target (In2O3-SnO2, 90-10 wt%). After deposition, ITO thin film. have been irradiated by CW CO2 laser (λ = 10.6 μm. with power ranging from.1 to 10 watt. These film. were annealed at tem.eratures 250°C, 350°C, and 450°C in the air for 20 m.nutes using different laser power. The m.in incentive was to develop a low tem.erature process for ITO thin film., which typically required a 350°C anneal to crystallize and achieve optim.m.optical and electrical properties. The XRD results showed that 350°C tem.erature laser annealing could crystallize ITO with a strong (222) preferred orientation and its grain size increased from.29.27 nm.to 48.63 nm. The structure, optical transm.ssion, energy gap, resistivity and sheet resistance of the ITO thin film. were system.tically investigated as a function of laser post annealing tem.erature. It was found that the lowest resistivity was 2.9 × 10-4 Ω-cm.and that sheet resistance was 14.5 Ω/sq. And the highest optical transm.ttance (98.65%) of ITO film. was obtained at 350°C annealing tem.erature.

关键词： ITO Thin Film RF Sputtering Annealing CW CO2 Laser Optical Properties Structure XRD Transm.ssion Resistivity Energy Gap