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Recent advances in production,purification and applications of phycobiliproteins

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World Journal of Biological Chemistry 2016年第1期7卷 100-109页

作者： Ravi Raghav Sonani Rajesh Prasad Rastogi Rutvij Patel Datta Madamwar brd School of Biosciences Sardar Patel University

An obligatory sunlight requirement for photosynthesis has exposed cyanobacteria to different quantity and quality of light. Cyanobacteria can exhibit efficient photosynthesis over broad region(450 to 650 nm) of solar spectrum with the help of brilliantly coloured pigment proteins called phycobiliproteins(PBPs). Besides light-harvesting, PBPs are found to involve in several life sustaining phenomena including photoprotection in cyanobacteria. The unique spectral features(like strong absorbance and fluorescence), proteineous nature and, some imperative properties like hepato-protective, antioxidants, anti-inflammatory and anti-aging activity of PBPs enable their use in food, cosmetics, pharmaceutical and biomedical industries. PBPs have been also noted to show beneficial effect in therapeutics of some disease like Alzheimer and cancer. Such large range of applications increases the demand of PBPs in commodity market. Therefore, the large-scale and coast effective production of PBPs is the real need of time. To fulfil this need, many researchers have been working to find the potential producer of PBPs for the production and purification of PBPs. Results of these efforts have caused the inventions of some novel techniques like mixotrophic and heterotrophic strategies for production and aqueous two phase separation for purification purpose. Overall, the present review summarises the recent findings and identifies gaps in the field of production, purification and applications of this biological and economically important proteins.

关键词： Phycobiliproteins Nutraceutical Fluorescence Pharmaceutical Cyanobacteria

Vertebrate species introductions in the United States and its territories

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Current Zoology 2011年第5期57卷 559-567页

作者： Gary W. WITMER Pam L. FULLER USDA/APHIS/WS National Wildlife Research Center 4101 Laporte Avenue Fort Collins CO 80521-2154 USA USGS/brd Southeast Ecological Science Center 7920 NW 71st Street Gainesville FL 32653 USA

At least 1,065 introduced vertebrate species have been introduced in the United States and its territories, including at least 86 mammalian, 127 avian, 179 reptilian/amphibian, and 673 fish species. Examples in each major taxonomic group include domestic cat, small Indian mongoose, red fox, goat, pig, rabbit, rats, house mouse, gray squirrel, nutria, starling, Indian common myna, red-vented bulbul, brown treesnake, red-eared slider, brown trout, tilapia, and grass carp. We briefly review some of these species and the types of damage they cause. We then review the basic types of methods used for control or eradication of each taxonomic group, including physical, chemical, biological, and cultural methods. We discuss some of the challenges in managing these species, including issues with the use of toxicants, land access, public attitudes, and monitoring difficulties. Finally, we list some ongoing research and future research needs, including improved detection methods, improved attractants, improved barriers, improved capture methods, fertility control, and risk assessment methods [Current Zoology 57 （5）： 559-567, 2011].

关键词： Eradication Introductions Invasive species Management United States

Eco-Friendly Phyto-Synthesis of Silver Nanoparticles Using Jatropha Seedcake Extract

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Chinese Physics Letters 2013年第12期30卷 165-169页

作者： Anjali Bose Haresh Keharia M.P.Deshpande brd School of Biosciences Sardar Patel MaidanVadtal RoadP.O.Box 39Satellite CampusSardar Patel UniversityVallabh Vidyanagar 388120GujaratIndia Department of Physics Sardar Patel UniversityVallabh Vidyanagar 388120GujaratIndia

Phytosynthesis of metal nanoparticles is gaining importance due to their biocompatibility,low toxicity and eco-friendly *** the present study,an aqueous extract of Jatropha seedcake(JSC)is assessed as a reducing and stabilizing agent for the synthesis of silver nanoparticles(AgNPs).The maximum reduction of silver ions occur when 1 mM AgNO_(3) solution is treated with 0.1 volume fraction of JSC extract in boiling water bath for 10 *** synthesis of AgNPs is monitored by the excitation of surface plasmon resonance using UV-vis *** AgNPs are found to be mono-dispersed,spherical with average particle size of 10.48±74 nm when analyzed by transmission electron *** selected area electron diffraction(SAED)ring pattern indicated the polycrystalline nature of the *** x-ray diffraction data further confirm the presence of characteristic(111),(200),(220),(311)and(222)diffraction planes of face centered cubic structure,and the calculated lattice parameter comes out to be 4.083Å.FTIR analysis reveals the involvement of proteins and phenols in reduction and stabilization of *** synthesized AgNPs have significant antibacterial action on both the Gram positive and negative bacteria.

关键词： silver synthesis stabilization

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Impact of single chamber and dual chamber permanent pacemaker implantation on left ventricular function:An observational study

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World Journal of Cardiology 2024年第11期16卷 644-650页

作者： Merajul Haque Monika Bhandari Akshyaya Pradhan Pravesh Vishwakarma Abhishek Singh Ayush Shukla Akhil Sharma Gaurav Chaudhary Rishi Sethi Sharad Chandra Arvind Jaiswal Sudhanshu Kumar Dwivedi Department of Cardiology BRD Medical CollegeGorakhpur 273013Uttar PradeshIndia Department of Cardiology King George’s Medical UniversityLucknow 226003Uttar PradeshIndia

BACKGROUND Permanent pacemaker implantation has the potential to impact left ventricular(LV)function and hence quality of life(QoL)in the long *** To assess the effect of single-and dual-chamber pacing on LV function and *** This study included 56 patients who underwent permanent pacing:Dual pacing,dual sensing,dual responsive and rate responsive(DDDR)for the initial 3 months,ventricular sensing,inhibited response and rate responsive(VVIR)for the next 3 months,and DDDR mode for the last 3 *** the study period,various echocardiographic parameters,functional status,and QoL were measured to assess the impact of pacing on LV function compared with baseline and at every 3 months *** A significant change appeared in cardiac function after VVIR pacing which was in diastolic properties of LV as shown by increase in isovolumic relaxation time from(85.28±9.54 ms)to(89.53±9.65 ms).At the 3-,6-,and 9-month follow-up,reduction in LV ejection fraction was observed to be 62.71±4.66%,61.07±4.41%,and 58.48±3.89%,*** increase in the QoL scores was noted at every follow-up *** An apparent depressant effect on LV function due to right ventricular pacing,with a higher incidence of adverse outcomes in the VVIR *** addition,an upsurge in QoL scores for the study population was noted,which indicates improvement in the QoL of patients post-pacing,irrespective of the ***,the DDDR mode is a highly preferable pacing mode.

关键词： Artificial pacemaker Echocardiography Left ventricular function Quality of life

激光光解NO_2产物——氧原子O(~3P_(J''))的REMPI离子谱

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物理化学学报 2003年第9期19卷 875-878页

作者：高文斌 Hoger T Halpern J B Zacharias H 杭州电子工业学院应用物理系 Physikalisches Institut Universitaet MuensterWilhelm-Klemm str.1048149 MuensterBRD Chemistry Dapartment Howard UniversityWashington DC 20059 USA Physikalisches Institut Universitaet MuensterWilhelm-Klemm Str.1048149 MuensterBRD

由Nd:YAG激光器三倍频,输出波长为λ=355 nm(28 169 cm^(-1))的激光光解NO_2分子产生的氧原子,通过共振增强多光子电离(REMPI resonance enhanced multiphoto ionization)及飞行时间(TOF time of flight)质谱技术,获得了自旋-轨道精细能级分辨的氧原子O(2 p^3P_J~″=2,1,0)离子谱.氧离子信号强度与UV电离激光能量(λ≈226 nm)之间的关系能用三次方曲线很好拟合,它表明光解产物氧原子是通过(2+1)多光子吸收过程而被电离的.由离子信号得到的氧原子基态三个自旋-轨道支能级布居比f_1=I(~3P_1)/I(~3P_2)与fo=I(~3P_0)/I(~3P_2)分别为0.54±0.09和0.20±0.04,并且在不同的光解激光能量下其布居比保持不变.这一比值与统计分布计算的值为0.6和0.2一致(即统计分布~3P_2:~3P_1:~3P_0=1:0.6:0.2).这是由于样品(NO_2)在较低的压力下(1.33×10^(-4)Pa)和极短的光解-电离时间范围内(10^(-8)s),产物O(~3P_J~″)支能级间几乎不可能发生碰撞能量转移,因此,氧原子三个自旋-轨道角动量分裂能级布居O(~3P_J~″=2,1,0)是统计分布的.

关键词：激光光解 NO2 产物氧原子 O REMPI 离子谱飞行时间大气化学量子动力学

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Decline of Japanese encephalitis in Eastern Uttar Pradesh,India,2009-2019

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Asian Pacific Journal of Tropical Medicine 2022年第5期15卷 230-231页

作者： Neha Srivastava Hirawati Deval Nikhat Khan Rajni Kant Aparup Das ICMR-Regional Medical Research Centre BRD Medical College CampusGorakhpurUttar Pradesh273013India ICMR-National Institute of Research in Tribal Health Nagpur RoadGarhaJabalpurMadhya Pradesh482003India

Japanese encephalitis(JE),one of the major viral encephalitides,is caused by Flavivirus circulating in rural areas of Asia and Western Pacific regions[1]and is a neglected tropical viral disease due to its endemicity[2].The culicine mosquitoes,mainly of Culex tritaeniorhynchus and Culex vishnui group,are the vectors of JE virus(JEV)[1].Being a neurologic infection,JE manifests with a set of serious symptoms leading to death in many cases and/or change in behaviour of the patients leading to permanent disability[3].

关键词： encephalitis Eastern neglected

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抛物型方程的近似解及其计算机图形显示

高校应用数学学报（A辑） 1992年第1期7卷 64-76页

作者：沙震王翔 Department of Mathematics Zhejiang University Hangzhou 310027 Institut fur Geomestrie and Praktische Mathematik RWTH-Aachen 5100 Aachen BRD

In this paper, we consider the approximate solution of the type Ⅰ , Ⅲ initial boundary valued problems of the second order linear parabolic partial differential equations. We use a new difference scheme by suitably combining the difference and the basic recursion of elements in the bivariate spline space S21(Δmn(2)) to construct the approximate solutions. We have proved their convengence. And we will give a flow diagraph to display curved surface on a computer, and give an example.

关键词：抛物型方程近似解计算机

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国际植被学会简介及其1980年和1981年的工作报道

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植物生态学报 1982年第2期 157-162页

作者： H.第尔希克,宋永昌 D-3400 Gffingen brd(西德) Prof.

国际植被学会[International Association of Vegetation Science(IAVS);Internationale Vcreinigung für Vegetationskunde(ⅣⅤ)]早在1938年就由欧洲一些著名的植被学者发起组织,后因第二次世界大战,各国学者之间的交流中断,战争结束后重新恢复联系,并在1954年的巴黎国际植物学会上正式成立。当时应Tüxen之请,1956年在西德举行了后来定名为第二届的年会,以后各届年会,在

关键词：植被区系欧洲学术讨论会希克植物群落学植物群落生态学地植物学

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近海底拖曳式海洋仪器载体

海洋科技资料 1974年第2期 51-57页

作者： H.Schubert-Klempnauer Messerschmitt-Blkow-Blohm GmbH München brd

本文描述了一种为海洋调查而设计的仪器载体。这种拖曳体可调节下潜深度和在近海底活动,并留有装备每个调查方面和调查计划的各种仪器的位置。此设备可在深海高速航行,并可与海底保持一定的距离。

关键词：拖曳体浮力外力拖曳式仪器海底测深仪深度计剪式