检索结果-南通市图书馆

Ocular injuries by durian fruit

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 Ophthalmology(English edition) 2012年第4期5卷 530-534页

作者： sagili Chandrasekhara reddy Department of Ophthalmology School of Medical Sciences University Sains MalaysiaKubang Kerian Kelantan Malaysia

·AIM:To report various ocular injuries caused by durian fruit. ·METHODS:Three cases of ocular injuries were described in young patients, due to accidental fall of durian fruit on the forehead and face, while they were taking rest/sleeping /playing under the durian tree. ·RESULTS:The ocular injuries observed were lacerating injury of cornea with iris incarceration, hyphema, superficial penetrating injury of sclera and angle recession glaucoma in the right eye of first patient; lacerating injury of cornea with iris prolapse in the left eye of second patient; subconjunctival haemorrhage, traumatic mydriasis and superficial penetrating injury of sclera, commotion retinopathy and macular edema in the left eye of third patient. Vision improved to normal in all the eyes following surgical/ medical/optical treatment. ·CONCLUSION:Evidence of penetrating injury (because of thorns) and blunt injury (because of weight) can be seen in the eyes when durian fruit falls on the face. Vision can be recovered fully with immediate and appropriate treatment in these cases. The ocular injuries can be prevented by educating the public to wear protective metal frame wide goggles and not to sleep/take rest under the durian tree.

关键词： durian fruit subconjunctival haemorrhage hyphema lacerating injury of cornea iris prolapsed

Superglue injuries of the eye

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 Ophthalmology(English edition) 2012年第5期5卷 634-637页

作者： sagili Chandrasekhara reddy Department of Ophthalmology School of Medical Sciences University Sains MalaysiaKubang KerianKelantanMalaysia

AIM: To report various ocular lesions caused by accidental instillation of superglue. METHODS: Three cases of ocular injuries are described in children aged 6 years, 3 years and 8 months, following accidental instillation of superglue in the eye. RESULTS: In the first case there was sticking of eyelashes in the medial 1/3 of eyelids in both eyes. In the second case sticking of eye lashes was present in the lateral 1/3 of eyelids in the left eye. In the third case, superglue was present on the right cheek, above the right ear and sticking of eyelids in medial 1/3 in right eye. The eyelids were separated by pulling the lid margins with fingers in the first case and later on superglue was removed by trimming the eyelashes; and by direct trimming the eyelashes in second and third cases. There was no injury to other structures of anterior segment in the first two cases. However, removal of the superglue on the cornea resulted in corneal abrasion in the third case which healed with medical treatment and patching of the right eye. CONCLUSION: Accidental instillation of superglue is possible because of the appearance of the tube like eye ointment tube. Immediate medical aid will prevent ocular morbidity.

关键词： ocular injuries superglue sticking of eyelids corneal abrasion

Thermal radiation effect on unsteady threedimensional MHD flow of micropolar fluid over a horizontal surface of a parabola of revolution

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Propulsion and Power Research 2022年第1期11卷 129-142页

作者： S.R.R.reddy P.Bala Anki reddy Center for Nonlinear Systems Chennai Institute of TechnologyChennai600069T.N.India Department of Mathematics S.A.S.Vellore Institute of TechnologyVellore632014T.N.India

This paper explores the time-dependent magnetohydrodynamics(MHD)micropolar fluid flow over a three-dimensional variable stretching surface in the occurrence of radiation *** model time-dependent partial differential equations(PDE’s)in three independent variables are transformed into ordinary differential equations(ODE’s)by the suitable selfsimilarity *** perturbation method(HPM)and Runge-Kutta(RK)4^(th) order method along with shooting technique are used in the present *** also,HPM results are compared with Runge-Kutta(RK)4^(th) order method along with the shooting *** velocity,micro rotation in x and y directions,temperature,skin friction factor and heat transfer rates are examined for the emerging *** velocity profiles and momentum boundary layer thickness intensification with increasing values of the vortex viscosity *** higher value of a magnetic parameter declines the skin friction *** type of investigation may be profitable to the polymer fluids,exotic lubricants,electronic chips,artificial fibers,drawing of copper wires,etc.

关键词： Radiation parameter Magnetohydrodynamics Micropolar fluid Variable thickness sheet Homotopy perturbation method(HPM)

Stability of stratified shear flows in channels with variable cross sections

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Applied Mathematics and Mechanics(English Edition) 2015年第11期36卷 1459-1480页

作者： V.R.reddy M.SUBBIAH Department of Mathematics Pondicherry University

For the instability problem of density stratified shear flows in sea straits with variable cross sections, a new semielliptical instability region is found. Rurthermore, the instability of the bounded shear layer is studied in two cases：（i） the density which takes two different constant values in two layers and （ii） the density which takes three different constant values in three layers. In both cases, the dispersion relation is found to be a quartic equation in the complex phase velocity. It is found that there are two unstable modes in a range of the wave numbers in the first case, whereas there is only one unstable mode in the second case.

关键词： hydrodynamic stability shear flow variable density sea strait variablecross section

Grid Voltage Sensor-less Protection Scheme for One Cycle-Controlled Single-phase Photovoltaic Inverter Systems

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

CSEE Journal of Power and Energy Systems 2022年第6期8卷 1720-1729页

作者： Venkata R.reddy Sreeraj E.S. are with National Institute of Technology Goa Farmagudi Ponda 403401India

One-cycle-controlled(OCC)inverters are suitable for small single-phase photovoltaic distributed-generator systems because of their simplicity,phase-locked-loop free structure,grid voltage sensor-less operation,and *** voltage sensor-less control helps reduce cost and increases reliability in *** various sensors are used for implementation of a protection *** this paper,a grid voltage sensorless protection scheme for OCC based single-phase inverter systems is *** estimated value of voltage at point of common coupling(VPCC)is used for protecting the system during over/under voltage conditions of the grid,implementing of voltage ride through conditions,and for disconnecting the grid during islanded *** VPCC is estimated from the measured inverter current,switching pulses,and the measured dc-link voltage using a second-order *** and experimental studies are performed to verify the efficacy of the proposed voltage sensor-less protection mechanism triggered using estimated VPCC.

关键词： One cycle control photovoltaic systems voltage sensorless voltage protection over/under voltage protection islanding detection

Hormonal contraception for human males:prospects

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Andrology 2000年第1期2卷 46-50页

作者： P.R.K.reddy School of Life Sciences University of Hyderabad Hyderabad-500 046 India

Development of an ideal hormonal contraceptive for man has been the goal of several research workers during thepast few decades. Suppression of pituitary gonadotropic hormones, which in turn would inhibit spermatogenesis whilemaintaining normal libido and potentia has been the approach for a contraceptive agent. Intramuscularly administeredand orally active testosterone or testosterone in combination with progesterone have been shown to cause inhibition ofspermatogenesis resulting in azoospermia in normal men. Similarly testosterone has been used in combination with go-nadotropin releasing hormone antagonists and agonists to inhibit pituitary gonadotropic hormone release. Immunologicalapproach to neutralize the circulating levels of follicle stimulating hormone has also been shown to cause inhibition ofspermatogenesis. The available literature shows that testosterone causes reversible azoospermia without any significantside effects in Asian population effectively and appears to be a promising chemical for control of fertility in man.

关键词： testosterone progesterone male contraceptive agents gonadorelin spermatogenesis spermatogensis-blocking agents

Cerium(Ⅳ) ammonium nitrate catalysed facile and efficient synthesis of polyhydroquinoline derivatives through Hantzsch multicomponent condensation

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

Chinese Chemical Letters 2008年第7期19卷 775-779页

作者： Cherkupally sanjeeva reddy Mekala Raghu Department of Chemistry Kakatiya UniversityWarangal 506009India

A general and convenient practical approach for the synthesis of polyhydroquinoline derivatives has been achieved via one-pot four-component Hantzsch condensation of aromatic aldehydes, dimedone, ethyl acetoacetate and ammonium acetate in the presence of a catalytic amount of cerium（IV） ammonium nitrate （CAN）, in ethanol solvent at ambient temperature. Simple work-up, mild reaction conditions, inexpensive and non-toxic catalyst, and excellent product yields are the advantageous features of this method.

关键词： Aldehydes Dimedone Ethyl acetoacetate Ammonium acetate CAN Polyhydroquinolines

For antigen-specific effector or Foxp3^(+) regulatory T cell fate, cyclin-dependent kinases hold the trump card

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

Cellular & Molecular Immunology 2020年第4期17卷 310-312页

作者： Srinivasa reddy Bonam Jagadeesh Bayry Neuroimmunology&peptide therapy Biotechnology and cell signalingCNRS-University of StrasbourgIllkirch 67412 StrasbourgFrance Institut National de la santéet de la Recherche Médicale Centre de Recherche des CordeliersEquipe-Immunopathologie et Immunointervention ThérapeutiqueSorbonne UniversitéUniversitéParis DescartesSorbonne Paris CitéParis F-75006France

Forkhead box p3^(+)(Foxp3^(+))regulatory T cells(Tregs)are indispensable for immune homeostasis and for maintaining immune *** studies have confirmed that injection of a T cell population depleted of Tregs causes autoimmunity,rejection of grafts and inflammatory disorders,whereas reconstitution with Tregs inhibits these pathogenic *** the last two decades,intense efforts have been made to identify Treg subsets,Treg differentiation processes,and the molecular signatures and regulators that determine Treg lineage specificity and stability.1–6 Several lines of evidence clearly demonstrate that Foxp3^(+)Tregs do not constitute a homogeneous population,and various subsets of Tregs,such as thymic Tregs(tTregs),in vitro-generated Tregs(iTregs),and peripherally induced Tregs(pTregs),have been identified.5 In addition to Foxp3,epigenetic factors and metabolic processes play key roles in maintaining Treg identity and function,and mediate the switch between effector T cells and Tregs.

关键词： Foxp3 specificity homeostasis

ZrOCl2 Catalysed Chemoselective Conversion of Aldehydes to geminal-Diacetates and Their Cleavage： A Mild and Efficient Method

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemistry 2007年第10期25卷 1555-1558页

作者： NAGARAJ, Adki saNJEEVA reddy, Cherkupally Department of Chemistry Kakatiya University Warangal-506 009 India

ZrOCl2 was found to be an effective Lewis acid catalyst for the solventless chemoselective conversion of aldehydes into geminal-diacetates in high yields at room temperature. Regeneration of the aldehydes from the acetals was also achieved using the same catalyst in water. The beneficial effect of microwave irradiation on the reaction was also described. Other advantages are the very low loading of catalyst, high yields achieved even on a gram scale, and considerably shortened reaction time compared to the conventional method.

关键词： zirconium oxychloride acetal chemoselective microwave irradiation