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terahertz generation in an aperiodically poled lithium niobate parametric oscillator

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Terahertz generation in an aperiodically poled lithium nioba...

traditional herbal medicine, pharmacology and complementary alternative medicine (CAM): a preface to this special issue on herbal drugs

2007年中国青年光学学术研讨会

作者： H.Su S.C.ruan M.zhang l.z.Xia H.zhou Shenzhen Key laboratory of laser Engineering,College of Electronic Science and technology,Shenzhen University,Shenzhen,p.r.China 518060

*** Optical parametric oscillators(OpO)have attracted wide attention because they are efficient laser sources yielding coherent radiation with broad tunability and narrow *** the development of electric poling technique,quasi-phase-matching(QpM) has been widely deployed in nonlinear parametric process as an alternative to birefringence

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Acta pharmacologica Sinica 2000年第12期 2-3页

作者： Chiu-Yin KWAN Guest Editor of this issue, professor of Department of Medicine, Faculty of Health Sciences, Mcmaster University, Hamilton, Ontario l8N3z5, Canada.

In China, our ancient human civilization has long used plants and other natural products, and their extracts for both healing and poisoning. the understanding of interactions between drugs and living systems was acquired via generations of knowledge accumulation based on empirical observations. this form of healing, also well documented to exist in many other cultural civilizations via a long historical experimentation, has eventually evolved itself from an art form into a scientific modality, now known as pharmacology. this recognition of a formal discipline of medicine oc-

关键词： this traditional herbal medicine a preface to this special issue on herbal drugs pharmacology and complementary alternative medicine CAM

luminescence properties and energy transfer of Ce3+/tb3+ co-doped Ca9la(pO4)5(SiO4)F2 phosphor

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Luminescence properties and energy transfer of Ce3+/Tb3+ co-...

An efficient protocol for studying human pluripotent stem cell-derived myotube senescence

第二届海峡两岸功能材料科技与产业峰会（2015）

作者： Y.Y.zhang l.F.Mei z.H.Huang School of materials Sciences and technology China University of Geosciences

Emission-tunable phosphors Cala(pO)(SiO)F:Ce,tb with apatite structure were synthesized by a solid-state *** phase structure,photoluminescence(pl)properties,lifetimes and the pl thermal stability were investigated,***...

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Biophysics reports 2023年第5期9卷 232-240页

作者： Qian zhao Ying Jing Shuai ma Weiqi zhang Jing Qu Si Wang Guang-Hui liu Advanced Innovation Center for Human Brain protection National Clinical Research Center for Geriatric Disorders Xuanwu Hospital Capital Medical University Aging translational Medicine Center International Center for Aging and Cancer Beijing Municipal Geriatric Medical Research Center Xuanwu Hospital Capital Medical University State Key laboratory of Membrane Biology Institute of Zoology Chinese Academy of Sciences Beijing Institute for Stem Cell and regenerative Medicine Institute for Stem Cell and regeneration CAS University of Chinese Academy of Sciences CAS Key laboratory of Genomic and precision Medicine Beijing Institute of Genomics and China National Center for Bioinformation Chinese Academy of Sciences Sino-Danish College University of Chinese Academy of Sciences Sino-Danish Center for Education and research State Key laboratory of Stem Cell and reproductive Biology Institute of Zoology Chinese Academy of Sciences

Sarcopenia, an age-related skeletal muscle condition characterized by a progressive decline in muscle mass and function, is linked to increased vulnerability, a higher likelihood of falls, and higher mortality rates in older individuals. A comprehensive understanding of the intricate mechanisms driving skeletal muscle aging is of great significance in both scientific and clinical fields. Consequently, myotube models that facilitate studying regulatory mechanisms underlying skeletal muscle aging are important tools required to advance intervention strategies against skeletal muscle aging and associated ***, we provide a detailed protocol to generate human pluripotent stem cells-derived myotubes and describe their applications in aging studies, as well as a troubleshooting for potential problems. Overall,this protocol serves as a valuable methodological reference for exploring the role and mechanism of genes involved in skeletal muscle aging.

关键词： Human pluripotent stem cell Myotube Senescence Differentiation In vitro

predictions for cross sections of light proton-rich isotopes in the ^(40)Ca + ~9Be reaction

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Chinese physics C 2018年第7期42卷 59-64页

作者： Yi-Dan Song Hui-ling Wei Chun-Wang ma Institute of particle and Nuclear physics Henan Normal University Xinxiang 453007 China Shanghai Institute of Applied physics Chinese Academy of Sciences Shanghai 201800 China

the cross sections for z=10-19 with isotopes tz=-3/2 to -5 in the 140A MeV 40Ca ＋ 9Be projectile fragmentation reaction have been predicted. An empirical formula based on the correlation between the cross section and average binding energy of an isotope has been adopted to predict the cross section. the binding energies in the AME16, WS4, and the theoretical prediction by the spherical relativistic continuum Hartree-Bogoliubov theory have been used. Meanwhile, the FrACS parametrization and the modified statistical abrasion-ablation model are also used to predict the cross sections for the proton-rich isotopes. the predicted cross sections for the tz=-3 isotopes are close to 10-10 mb, which hopefully can be studied experimentally. In addition, based on the predicted cross sections, z=14 is suggested to be a new magic number in the light proton-rich nuclei with tz ≤ -3/2, for which the phenomenon is much more evident than it is from the average binding energy per nucleon.

关键词： proton-drip line proton-rich isotopes proton magic number binding energy projectile fragmentation

Effects of Water Stress on reactive Oxygen Species Generation and protection System in rice During Grain-Filling Stage

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Agricultural Sciences in China 2010年第5期9卷 633-641页

作者： WANG He-zheng zHANG lian-he ma Jun lI Xu-yi lI Yan zHANG rong-ping WANG ren-quan College of Agriculture Henan University of Science and Technology Luoyang 471003 P.R.China rice research Institute of Sichuan Agricultural University Wenjiang 611130 P.R.China

rice is one of the main staple food crops in the world, but it may suffer serious water stress during growth period. Water stress during grain filling results in decreased grain yeild, but its mechanism generating and scavenging the active oxygen is unclear under continuance of the water stress. the experiment was carried out in growth chamber to investigate the effects of water stress on the production of superoxide free radical （O2）, hydrogen peroxide （H202）, malondialdehyde （MDA）, reduced glutathione （GSH）, ascorbic acid （AsA）, and antioxidative enzyme activities in three rice hybrids with differing drought resistant under both normal and drought conditions during grain-filling stage. the results showed that water stress aggravated the membrane lipid peroxidation in rice leaves, which was more severe in less drought resistant hybrids than that in more tolerant ones. Also O2＇ and H2O2 accumulated more rapidly in less drought resistant hybrids than that in more tolerant ones. During water stress, decreases of GSH, AsA, chlorophyll, and relative water contents in more drought resistant hybrids were obvious less than those in less tolerant ones. Activities of superoxide dismutase （SOD）, catalase （CAt） and peroxidase （pOD） in/eaves increased obviously in 0-14 d after heading and subsequently decreased rapidly, and those in more drought resistant hybrids were more than those in less tolerant ones. the results showed that changes of O2, H2O2, MDA, GSH, and AsA contents and antioxidative enzyme activities correlated significantly to drought resistance of rice hybrids, and more drought resistant hybrids possessed high ant oxidation capacity.

关键词： rice water stress reactive oxygen species protection system

Effects of selenium on fatty acid concentration and antioxidant status of erythrocyte membrane in lambs fed linseed or sunflower oil diet

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Effects of selenium on fatty acid concentration and antioxid...

FSE2r:An Improved Collision-Avoidance-based Energy Efficient route Selection protocolin USN

the Ⅶ International Symposium on the Nutrition of Herbivores(ISNH-7)

作者： l.l.Yu~1 J.Cao~2 X.p.zhu~1 W.zhang~1 z.H.Jia~(1 3) China Agriculture University ~1College of Animal Science and technology ~2Coilege of Veterinary Medicine Yuanmingyuan West road 2 Beijing 100094 p.r.China

＜正＞the effects of selenium and fatty acid supplementation on fatty acid composition and antioxidant status of erythrocyte membrane in lambs were *** two lambs with average body weight of 26±1 kg were divided into 4 groups and each was fed basal diet+5% linseed oil（lO）,or lO+2 mg Se/ kg DM（as sodium selenite）（lOSe）,or basal diet+5% sunflower oil（SO）,or SO+2 mg Se/kg DM（SOSe）. Selenium supplementation increased the concentration of C 18:2t-10,c-12,and also the concentration of C20:5n-3 of erythrocyte membrane of the lambs fed the sunflower oil *** fed the linseed oil diet had higher concentrations of C 18:2t-10,c-12,C 18:*** C20:5n-3 in erythrocyte membrane. Erythrocyte membrane of the lambs fed sunflower oil diet had higher concentrations of C 18:lt-11. C18:2n-6,C18:2c-9,t-11 and C22:*** status increased with selenium supplementation, and lambs fed sunflower oil diet had higher total antioxidative capability.

关键词： lamb selenium polyunsaturated fatty acid antioxidant status ervthrocyte membrane

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Computer Systems Science & Engineering 2023年第3期44卷 2225-2242页

作者： prasant Ku.Dash lopamudra Hota madhumita panda N.z.Jhanjhi Kshira Sagar Sahoo Mehedi masud Department of Computer Science and Engineering Sambalpur UniversityOdisha768019India Department of Computer Science and Engineering NITRourkelaOdisha769008India Department of Computer Science G.M UniversitySambalpurOdisha768001India School of Computer Science and Engineering SCETaylor’s UniversitySubang Jaya47500Malaysia Department of Computer Science and Engineering SRM UniversityAmaravatiAndhra Pradesh522502India Department of Computer Science College of Computers and Information TechnologyTaif UniversityTaif21944Saudi Arabia

the 3D Underwater Sensor Network(USNs)has become the most optimistic medium for tracking and monitoring underwater *** and collision are two most critical factors in USNs for both sparse and dense *** to harsh ocean environment,it is a challenge to design a reliable energy efficient with collision free *** in link qualities may cause collision and frequent communication lead to energy loss;that effects the network *** overcome these challenges a novel protocol Forwarder Selection Energy Efficient routing(FSE2r)is *** proposal’s key idea is based on computation of node distance from the sink,residual Energy(rE)of each node and Signal to Interference Noise ratio(SINr).the node distance from sink and rE is computed for reliable forwarder node selection and SINr is used for analysis of *** novel proposal compares with existing protocols like H2AB,DEEp,and E2lr to achieve Quality of Service(QoS)in terms of through-put,packet delivery ratio and energy *** comparative analysis shows that FSE2r gives on an average 30%less energy consumption,24.62%better pDr and 48.31%less end-to-end delay compared to other protocols.

关键词： USN energy efficiency collision avoidance maC SINr

Synthesis, Crystal Structure and DNA-Binding property of a Mn(Ⅱ) Complex Based on 5-(tri-fluoromethyl)pyridine-2-carboxylic Acid

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Chinese Journal of Structural Chemistry 2019年第8期38卷 1349-1355页

作者： WANG Jia-Kai lI Bing WU Huan-ping tIAN Xiao-Yan ma Xiao-Xia Department of Chemistry and Chemical Engineering Ningxia UniversityYinchuan 750021China

A new complex Mn(Htpc)2(H2O)2(1, Htpc = 5-(trifluoromethyl)pyridine-2-carboxylic acid) has been synthesized and characterized by elemental analysis, Ir, tG and single-crystal X-ray diffraction. 1 belongs to triclinic system, space group p■ with a = 5.0885(10), b = 6.5574(13), c = 14.016(3) ?, β = 90.67(3)o, V = 436.34(17) ?3, z = 1, Dc = 1.793 g·cm-3, μ = 0.855 mm-1, Mr = 471.18, F(000) = 235, the final r = 0.0454 and wr = 0.1134 for 1998 observed reflections with I > 2σ(I). the Mn(Ⅱ) ion is coordinated by two N and two O atoms from two Htpc as well as two O atoms from two coordinated water molecules, forming a 0D motif with distorted octahedral coordinate geometry. the adjacent 0D units are linked into 1D chains through hydrogen bond O(1W)–H(1 WB)···O(2), and via the O(1 W)–H(1 WA)···O(1) hydrogen bond the neighboring 1D chains are connected into a 2D supramolecular layer. Moreover, the interactions between the ligand and its complex with Ct-DNA were studied by EtBr fluorescence probe, which suggested that these compounds bind to Ct-DNA through an intercalation mode. the binding constants were 0.41 and 0.64 for Htpc and complex 1, respectively. It indicates that the interaction between complex 1 and Ct-DNA is stronger than Htpc.

关键词： 5-(trifluoromethyl)pyridine-2-carboxylic acid crystal structure DNA fluorescence spectra