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Strategies of behavior,energetic and thermogenesis of striped hamsters in response to food deprivation

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Integrative Zoology 2018年第1期13卷 70-83页

作者： Jing WEN Song TAN Qinggang QIAO Lulu SHI Yixin HUANG Zhijun ZHAO college of Life and Environmental Science Wenzhou UniversityWenzhouChina

The life history of many animals includes periods of food *** behavioral strategies are involved in small mammals in response to food shortage:an increase in activity behavior,representing the increased foraging or migratory behavior,and a decrease in activity level,serving as a mechanism for conserving ***,it is uncertain whether animals adopt both strategies in response to food shortage,and whether hormone and neuroendocrine mechanisms are involved in both *** the present study,changes in behavior and metabolic rate were examined in food-deprived striped hamsters(Cricetulus barabensis).The effects of leptin supplement on activity behavior,metabolic rate and hypothalamic neuropeptide gene expression were also *** behavior of food-deprived hamsters significantly changed with photoperiod phases:with increasing activity during the dark phase compared to those fed ad libitum,whereas decreasing activity and simultaneously increasing resting behavior during the light *** metabolic rate,body mass,and masses of fat depots and digestive tracts significantly decreased in food-deprived hamsters compared with ad libitum *** supplement tended to attenuate the increased activity in the dark *** expression of hypothalamic neuropeptide Y(NPY)was significantly upregulated in food-deprived hamsters,while was significantly attenuated by exogenous *** findings suggest that both behavior strategies are important behavioral adjustments in free-living animals to cope with food *** and hypothalamic NPY gene expression may be involved in the adjustments of physiology and behavior in animals demonstrating a hyperactivity strategy in response to food shortage.

关键词： behavior food deprivation neuropeptide Y leptin striped hamster

One-Step Generation of Multi-Qubit GHZ and W States in Superconducting Transmon Qubit System

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Communications in Theoretical Physics 2012年第2期57卷 205-208页

作者：高贵龙蔡根畅黄寿胜王明锋姜年权 college of Physics and Electric Information Wenzhou University college of Music Wenzhou University

We propose a one-step method to prepare multi-qubit GHZ and W states with transmon qubits capacitively coupled to a superconducting transmission line resonator(TLR).Compared with the scheme firstly introduced by Wang et al.[***.B 81(2010) 104524],our schemes have longer dephasing time and much shorter operation time because the transmon qubits we used are not only more robust to the decoherence and the unavoidable parameter variations,but also have much stronger coupling constant with *** on the favourable properties of transmons and TLR,our method is more feasible in experiment.

关键词： transmon transmission line resonator GHZ state W state

Gaussian process regression for prediction and confidence analysis of fruit traits by near-infrared spectroscopy

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Food Quality and Safety 2023年第1期7卷 132-137页

作者： Xiaojing Chen Jianxia Xue Xiao Chen Xinyu Zhao Shujat Ali Guangzao Huang college of Electrical and Electronic Engineering Wenzhou UniversityWenzhouChina wenzhou Institute of Industry&Science WenzhouChina

Detection of fruit traits by using near-infrared(NIR)spectroscopy may encounter out-of-distribution samples that exceed the generalization ability of a constructed calibration ***,confidence analysis for a given prediction is required,but this cannot be done using common calibration models of NIR *** address this issue,this paper studied the Gaussian process regression(GPR)for fruit traits detection using NIR *** mean and variance of the GPR were used as the predicted value and confidence,*** show this,a real NIR data set related to dry matter content measurements in mango was *** to partial least squares regression(PLSR),GPR showed approximately 14%lower root mean squared error(RMSE)for the in-distribution test *** with no confidence analysis,using the variance of GPR to remove abnormal samples made GPR and PLSR showed approximately 58%and 10%lower RMSE on the mixed distribution test set,respectively(when the type 1 error rate was set to 0.1).Compared with traditional one-class classification methods,the variance of the GPR can be used to effectively eliminate poorly predicted samples.

关键词： Near-infrared spectroscopy fruit traits calibration model confidence analysis Gaussian process regression

Quantitative Analysis of Composition Change in AZ31 Magnesium Alloy Using CF-LIBS After Laser Material Processing

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Plasma Science and Technology 2015年第11期17卷 909-913页

作者：朱德华曹宇钟蓉陈孝敬 college of Mechanical & Electrical Engineering Wenzhou University college of Physics & Electronic Information Engineering Wenzhou University

The concentration of elements in molten metal of AZ31 magnesium alloy after long pulsed Nd：YAG laser processing was quantitatively analyzed by using calibration-free laser-induced breakdown spectroscopy （CF-LIBS）. The composition change in AZ31 magnesium alloy under different laser pulse width was also investigated. The experimental results showed that CF-LIBS can obtain satisfactory quantitative or semi-quantitative results for matrix or major elements, while only qualitative analysis was possible for minor or trace elements. Moreover, it is found that the chemical composition of molten metal will change after laser processing. The concentration of magnesium in molten metal is lower than that present in the base metal. The Mg loss increases with an increase of pulse width in the laser processing. This result shows that the selective vaporization of different elements is affected by the pulse width during laser processing.

关键词： laser processing CF-LIBS emission spectra composition change AZ31 magnesium alloy

Gallium trichloride-catalyzed conjugate addition of indole and pyrrole to α,β-unsaturated ketones in aqueous media

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Chinese Chemical Letters 2009年第6期20卷 676-679页

作者： Rong Xu Jin Chang Ding Xi An Chen Miao Chang Liu Hua Yue Wu wenzhou Vocational and Technical college Wenzhou 325035 PR China college of Chemistry and Materials Science Wenzhou University Wenzhou 325027 PR China

Michael addition of indole and pyrrole to a variety of α, β-unsaturated ketones was efficiently promoted by a catalytic amount of GaCl3 in aqueous media to afford the corresponding products in good to excellent yields.

关键词： Gallium trichloride Michael addition Indole Pyrrole α, β-Unsaturated ketones

Molecular Cloning and Putative Functions of KIFC1 for Acrosome Formation and Nuclear Reshaping during Spermiogenesis in Schlegel’s Japanese Gecko Gekko japonicus

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Asian Herpetological Research 2019年第3期10卷 170-182页

作者： Shuangli HAO Liyue ZHANG Jun PING Xiaowen WU Jianrao HU YongpuZHANG college of Life and Environmental Sciences Wenzhou UniversityWenzhou325035China college of Medicine Zhejiang UniversityHangzhou310058China college of Life and Environmental Sciences Hangzhou Normal UniversityHangzhou310036China

Spermiogenesis, occurring in the male testis, is a complicated and highly-ordered developmental process resulting in the production of fertile mature sperm. In Gekko japonicus, this process occurs in 7 steps during which the spermatids undergo dramatic changes in the cytoskeleton and nucleus. Here, we cloned and sequenced the cDNA of the mammalian KIFC1 homologue in the testis of G. japonicus. The 2 344 bp full-length cDNA sequence contained a 191 bp 5’-untranslated region, a 134 bp 3’-untranslated region and a 2 019 bp open reading frame encoding a protein of 672 amino acids. Tissue expression analysis revealed the highest expression of kifc1 mRNA was in the testis. Fluorescence in situ hybridization revealed that the kifc1 mRNA signal was hardly detected in step 1 spermatids but became concentrated at the acrosome of step 2 spermatids and abundant in the nucleus of step 5 spermatids where the nucleus then undergoes dramatic elongation and compression. The kifc1 mRNA signal then gradually disappears in mature sperm. This expression of KIFC1 at specific stages of spermiogenesis in G. japonicus implies its important role in the major cytological transformations such as acrosome biogenesis and nucleus morphogenesis.

关键词： Spermiogenesis KIFC1 Kinesin Gekko japonicus

A new approach to obtaining positive-definite Wigner operator for two entangled particles with different masses

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Chinese Physics B 2011年第7期20卷 47-51页

作者：范洪义徐学翔袁洪春王帅王震许朋姜年权 Department of Physics Shanghai Jiao Tong University college of Physics & Communication Electronics Jiangxi Normal University college of Physics and Electric Information Wenzhou University

Based on our previously proposed Wigner operator in entangled form, we introduce the generalized Wigner operator for two entangled particles with different masses, which is expected to be positive-definite. This approach is able to convert the generalized Wigner operator into a pure state so that the positivity can be ensured. The technique of integration within an ordered product of operators is used in the discussion.

关键词： positive-definite Wigner operator entangled form marginal distribution

Thermogenic responses in Eurasian Tree Sparrow(Passer montanus)to seasonal acclimatization and temperature-photoperiod acclimation

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Avian Research 2020年第3期11卷 336-348页

作者： Lin Li Jingru Ge Sangyu Zheng Lihong Hong Xini Zhang Ming Li Jinsong Liu college of Life and Environmental Sciences Wenzhou UniversityWenzhou 325035China

Background:Small birds in temperate habitats must either migrate,or adjust aspects of their morphology,physiology and behavior to cope with seasonal change in temperature and *** is,however,difficult to accurately measure how seasonal changes in temperature and photoperiod affect physiological processes such as basal metabolic rate(BMR)and metabolic *** address this problem,we collected data in each month of the year on body mass(Mb)and BMR,and conducted a series of experiments to determine the effect of temperature and photoperiod on Mb,BMR and physiological markers of metabolic activity,in the Eurasian Tree Sparrow(Passer montanus).Methods:In one experiment,we measured monthly change in Mb and BMR in a captive group of birds over a *** another experiment,we examined the effects of acclimating birds to two different temperatures,10 and 30℃,and a long and a short photoperiod(16 h light:8 h dark and 8 h light:16 h dark,respectively)for 4 ***:We found that these treatments induced sparrows to adjust their Mb and metabolic rate *** to 30℃for 4 weeks significantly decreased sparrows’Mb,BMR,and energy intake,including both gross energy intake and digestible energy intake,compared to birds acclimated to 10℃.The dry mass of the liver,kidneys and digestive tract of birds acclimated to 30℃also significantly decreased,although their heart and skeletal muscle mass did not change significantly relative to those acclimated to 10℃.Birds acclimated to 30℃also had lower mitochondrial state-4 respiration(S4R)and cytochrome c oxidase(COX)activity in their liver and skeletal muscle,compared to those acclimated to 10℃.Birds acclimated to the long photoperiod also had lower mitochondrial S4R and COX activity in their liver,compared to those acclimated to the short ***:These results illustrate the changes in morphology,physiology,and enzyme activity induced by seasonal change in temperature and photoperiod in a small

关键词： Acclimation Acclimatization Basal metabolic rate Body mass Eurasian tree sparrow(passer montanus)

Recent advances in transition-metal catalyzed nitrene transfer reactions with carbamates

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Chinese Chemical Letters 2024年第3期35卷 76-86页

作者： Yanshu Luo Xinyu Zhang Yuanzhi Xia college of Chemistry and Materials Engineering Wenzhou UniversityWenzhou 325035China

Nitrene transfer reactions are powerful tools in synthetic organic *** recent years,transitionmetal catalyzed nitrene transfer reactions with carbamates as the nitrene precursors have been widely *** species undergoes facile C-H amination,aziridination,and bifunctionalization of alkenes under the catalysis of different transition metals including Rh,Fe,Ru and others,enabling the efficient construction of various nitrogen-containing *** this review,the recent developments in nitrene transfer reactions with carbamates via N-O bond cleavage were introduced based on different types of reaction,and the key mechanistic information and synthetic applications of the methodologies were discussed.

关键词： Transition-metal catalysis Nitrene transfer Carbamate C—H amination Aziridination Bifunctionalization