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64篇 您的检索式:作者名="Tianshi"
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1Estimation of genetic parameters and breeding values in shrimp F enneropenaeus chinensis using the REML/BLUP procedure显示文摘An analysis of a selection experiment was used to assess the impact of various animal model structures on REML estimates of variance components.The analyses were carried out based on 162 d body mass (BM) of 1 287 animals from 21 paternal half-sib groups of Fenneropenaeus chinensis.Estimated breeding values (EBV) of BM of all individuals were estimated using eight statistical models (A,AB,ABC,ABDC,ABMFC,ABMDC,ABFDC and ABMFDC) and BLUP (best linear unbiased prediction).These models were designed involving factors such as sex,spawn date as fixed effects,maternal genetic effects,full-sib family effects as random effects,mean BM of families at tagging and age at recording (covariate).The results demonstrate the importance of correct interpretation of effects in the data set,particularly those that can influence resemblance between relatives.The data structure and the particular model that was applied markedly influenced the magnitude of variance component estimates.Models based on few effects obtained upward biased estimates of additive genetic variance.The accuracy of genetic parameters and breeding value estimated by ABFDC model was higher than other models.The results imply that additive genetic direct value,full-sib family effects,and covariance effects besides sex and spawn date as fixed effects were very important for estimating genetic parameters and breeding value of body mass.This model had a heritability estimate of 162 d BM of 0.44.The comparison of the efficiency of selection based on breeding values or phenotypic value revealed great difference:average breeding value of the best 24 families selected by the 162 d BM breeding value and phenotype were 0.577 g and 0.366 g,respectively,representing a 36.57% higher efficiency in the former.In conclusion,selection based on breeding value was more effective than selection based on phenotypic value.Our results indicate that effects influencing the magnitude of estimates should be taken into account when estimating heritability and breeding values for BM.ZHANG Tianshi KONG Jie LUAN Sheng WANG Qingyin LUO Kun TIAN Yia 2011Acta Oceanologica Sinica2011,30,1:12
2Genetic parameter estimation for juvenile growth and upper thermal tolerance in turbot(Scophthalmus maximus Linnaeus)显示文摘Twenty-six half-sib groups(53 full-sib families) of turbot, Scophthalmus maximus Linnaeus, were obtained by artificial insemination. We measured growth in the offspring(40–50 individuals/family) and subjected them to a thermal tolerance challenge over a period of 34 d. There was no significant difference in daily mortality(range: 0.580%–1.391%) between Days 1–13 during the thermal tolerance challenge. However, daily cumulative mortality increased rapidly between Days 14 and 29, especially on Days 15 and 16(20.232% and 34.377%, respectively). Mortality was highest on Day 16(14.145%). We estimated the genetic parameters using the average information restricted maximum likelihood method. We used a likelihood ratio test to evaluate the significance of effects in models with and without identity as an effect, and compared the final log-likelihoods(maximum log L). Lastly, we estimated phenotypic and genetic correlation between the upper thermal tolerance limit(UTT) and body weight(BW). In this study, the positive phenotypic correlation was low between UTT and BW(0.093±0.029). The genetic correlation between UTT and BW was negative(-0.044±0.239). The heritability for upper thermal tolerance was low(0.087±0.032), which is of approximately moderate heritability. The heritability for body weight was high(0.303±0.074). Our results suggest there is significant potential for improvement in the culture of turbot by selective breeding.ZHANG Tianshi KONG Jie LIU Baosuo WANG Qingyin CAO Baoxiang LUAN Sheng WANG Weiji 2014Acta Oceanologica Sinica2014,33,8:7
3Pros and Cons: Autophagy in Acute Spinal Cord Injury显示文摘Autophagy plays an important role in the development and pathogenesis of various diseases. It can be induced by a variety of events such as hypoxia, nutrient-starvation, and mechanical damage. Many neurological disorders such Parkinson’s disease, Alzheimer’s disease, amyotrophic lateral sclerosis, Huntington’s disease, cerebral ischemia, and acute spinal cord injury (ASCI), are closely related to autophagy. However, therapeutic strategies to manipulate autophagy have not yet been fully deciphered due to the limited knowledge of the molecular mechanisms underlying autophagy in these disorders.Zheng Li Tianshi Chen Yuanwu Cao Xiaoxing Jiang Haodong Lin Jian Zhang Zixian Chen 2019Neuroscience Bulletin2019,35,5:6
4Acetyl salicylic acid attenuates cardiac hypertrophy through Wnt signaling显示文摘室的肥大是心血管的疾病的事件的一个强大、独立的预言者。低剂量的乙酰水杨酸酸(阿司匹林) 的脉管的性质通过血小板 cyclooxygenase 的不可逆的抑制提供心血管的好处 1;然而,可能的 anti-hypertrophic 性质和阿司匹林的潜在的机制没详细被调查。在这研究,健康野类型的雄的老鼠随机被划分成三个组并且使遭到了到横向的大动脉的收缩(TAC ) 或假冒的操作。操作 TAC 的老鼠与低剂量的阿司匹林的人的等价物被对待(10 mg 吗?Samuel Chege Gitau Xuelian Li Dandan Zhao Zhenfeng Guo Haihai Liang Ming Qian Lifang Lv Tianshi Li Bozhi Xu Zhiguo Wang Yong Zhang Chaoqian Xu Yanjie Lu Zhiming Du Hongli Shan Baofeng Yang 2015Frontiers of Medicine2015,9,4:6
5The development of blood-retinal barrier during the interaction of astrocytes with vascular wall cells显示文摘Astrocytes are intimately involved in the formation and development of retinal vessels.Astrocyte dysfunction is a major cause of blood-retinal barrier injury and other retinal vascular diseases.In this study,the development of the retinal vascular system and the formation of the blood-retinal barrier in mice were investigated using immunofluorescence staining,gelatin-ink perfusion,and transmission electron microscopy.The results showed that the retinal vascular system of mice develops from the optic disc after birth,and radiates out gradually to cover the entire retina,taking the papilla optica as the center.First,the superficial vasculature is formed on the inner retinal layer; then,the vasculature extends into the inner and outer edges of the retinal inner nuclear layer,forming the deep vasculature that is parallel to the superficial vasculature.The blood-retinal barrier is mainly composed of endothelium,basal lamina and the end-feet of astrocytes,which become mature during mouse development.Initially,the naive endothelial cells were immature with few organelles and many microvilli.The basal lamina was uniform in thickness,and the glial end-feet surrounded the outer basal lamina incompletely.In the end,the blood-retinal barrier matures with smooth endothelia connected through tight junctions,relatively thin and even basal lamina,and relatively thin glial cell end-feet.These findings indicate that the development of the vasculature in the retina follows the rules of 'center to periphery' and 'superficial layer to deep layers'.Its development and maturation are spatially and temporally consistent with the functional performance of retinal neurons and photosensitivity.The blood-retinal barrier gradually becomes mature via the process of interactions between astrocytes and blood vessel cells.Huanling Yao Tianshi Wang Jiexin Deng Ding Liu Xiaofei Li Jinbo Deng 2014Neural Regeneration Research2014,9,10:6
6A survey of neural network accelerators显示文摘Zhen LI Yuqing WANG Tian ZHI Tianshi CHEN 2017Frontiers of Computer Science2017,11,5:4
7Reverse micelles extraction ofnattokinase:From model system to real system显示文摘Nattokinase is a novel fibrinolytic en- zyme, which is homologous to Subtilisin Carlsberg. In this paper, Subtilisin Carlsberg was taken as a model protein of nattokinase. Effects of pH, ionic strength, concentration of isopropanol on the extraction of Subtilisin Carlsberg with AOT/isooctane reverse mi- celles system were investigated. Further, the process of reverse micelles extraction of nattokinase from fermentation broth was studied. By taking the reverse micelles of AOT/isooctane as extractant to perform a full extraction cycle, it was found that about eighty percent of the total activity of nattokinase in the fer- mentation broth could be recovered and the purifica- tion factor was about 2.5. Homologous protein could be reasonably used as model protein of a target protein.LIU Junguo XING Jianmin CHANG Tianshi LIU Huizhou 2006Chinese Science Bulletin2006,51,7:4
8Establishment of microsatellite-based triplex PCR for parentage analysis of Chinese shrimp Fenneropenaeus chinensis显示文摘Through exploring the microsatellite primers from the random genome sequences of Chinese shrimp (Fenneropenaeus chinensis), some microsatellite primers were obtained with rich polymorphic genetic information, and a triplex PCR was established using three primers (RS1101, RS0683 and H081 primers). By adjusting the final concentration of Mg2+, dNTP and primers, and using a touch-town PCR program, the optimum amplification parameters of PCR system were obtained, which could successfully amplify the three primers in a PCR reaction. In the denatured PAGE gel, the amplified DNA fragments of three primers RS1101, RS0683 and H081 could be easily identified each other. For the triplex PCR system, the PPE (probabilities of paternity exclusion) is 0.967 9, and the DP (discrimination power) is 0.999 327. Using the triplex PCR to test ten individuals of a parentage and their parents, an individual was excluded from the parentage in all of the three microsatellite loci, which might be mixed into the parentage for some unknown reason such as factitious misplay. The triplex PCR will be of great practical value in identifying the parentages of F. chinensis.GAO Huan KONG Jie HU Ping MENG Xianhong LUAN Sheng ZHANG Tianshi 2007Acta Oceanologica Sinica2007,26,2:4
9The FGF21-adiponectin axis in controlling energy and vascular homeostasis显示文摘Whole-body energy metabolism and cardiovascular homeostasis are tightly controlled processes that involve highly coordinated crosstalk among distal organs.This is mainly achieved by a large number of hormones released from each organ.Among them,fibroblast growth factor 21(FGF21)and adiponectin have recently gained considerable attention,since both of them possess multiple profound protective effects against a myriad of cardio-metabolic disorders.Despite their distinct structuresand production sites,these two hormones share striking functional similarity.This dichotomy is recently reconciled by the demonstration of the FGF21-adiponectin axis.In adipocytes,both transcription and secretion of adiponectin are strongly induced by FGF21,which is partially dependent on PPARg activity.Furthermore,the glucose-lowering,lipid-clearing,and anti-atherosclerotic functions of FGF21 are diminished in adiponectin-null mice,suggesting that adiponectin serves as an obligatory mediator of FGF21-elicited metabolic and vascular benefits.However,in both animals and human subjects with obesity,circulating FGF21 levels are increased whereas plasma adiponectin concentrations are reduced,perhaps due to FGF21 resistance,suggesting that dysfunctional FGF21-adiponectin axis is an important contributor to the pathogenesis of obesity-related cardio-metabolic syndrome.The FGF21-adiponectin axis protects against a cluster of cardio-metabolic disorders via mediating multi-organ communications,and is a promising target for therapeutic interventions of these chronic diseases.Xiaoyan Hui Tianshi Feng Qing Liu Yuan Gao Aimin Xu 2016Journal of Molecular Cell Biology2016,8,2:4
10Unveiling the Effects of Interchain Hydrogen Bonds on Solution Gelation and Mechanical Properties of Diarylfluorene-Based Semiconductor Polymers显示文摘The intrinsically rigid and limited strain of most conjugated polymers has encouraged us to optimize the extensible properties of conjugated polymers.Herein,learning from the hydrogen bonds in glucose,which were facilitated to the toughness enhancement of cellulose,we introduced interchain hydrogen bonds to polydiarylfluorene by amide-containing side chains.Through tuning the copolymerization ratio,we systematically investigated their influence on the hierarchical condensed structures,rheology behavior,tensile performances,and optoelectronic properties of conjugated polymers.Compared to the reference copolymers with a low ratio of amide units,copolymers with 30%and 40%amide units present a feature of the shearthinning process that resembled the non-Newtonian fluid,which was enabled by the interchain dynamic hydrogen bonds.Besides,we developed a practical and universal method for measuring the intrinsic mechanical properties of conjugated polymers.We demonstrated the significant impact of hydrogen bonds in solution gelation,material crystallization,and thin film stretchability.Impressively,the breaking elongation for P4 was even up to~30%,which confirmed the partially enhanced film ductility and toughness due to the increased amide groups.Furthermore,polymer light-emitting devices(PLEDs)based on these copolymers presented comparable performances and stable electroluminescence(EL).Thin films of these copolymers also exhibited random laser emission with the threshold as low as 0.52μJ/cm^(2),suggesting the wide prospective application in the field of flexible optoelectronic devices.Lubing Bai Yamin Han Chen Sun Xiang An Chuanxin Wei Wei Liu Man Xu Lili Sun Ning Sun Mengna Yu He Zhang Qi Wei Chunxiang Xu Yingguo Yang Tianshi Qin Linghai Xie Jinyi Lin Wei Huang 2020Research2020,,1:2
11Senp2 regulates adipose lipid storage by de-SUMOylation of Setdbl显示文摘Quan Zheng Ying Cao Yalan Chen Jiqiu Wang Qiuju Fan Xian Huang Yiping Wang Tianshi Wang Xiuzhi Wang Jiao Ma Jinke Cheng 2018Journal of Molecular Cell Biology2018,10,3:2
12Recent Advances in Two-Dimensional Magnets:Physics and Devices towards Spintronic Applications显示文摘The emergence of low-dimensional nanomaterials has brought revolutionized development of magnetism,as the size effect can significantly influence the spin arrangement.Since the first demonstration of truly two-dimensional magnetic materials(2DMMs)in 2017,a wide variety of magnetic phases and associated properties have been exhibited in these 2DMMs,which offer a new opportunity to manipulate the spin-based devices efficiently in the future.Herein,we focus on the recent progress of 2DMMs and heterostructures in the aspects of their structural characteristics,physical properties,and spintronic applications.Firstly,the microscopy characterization of the spatial arrangement of spins in 2D lattices is reviewed.Afterwards,the optical probes in the light-matter-spin interactions at the 2D scale are discussed.Then,particularly,we systematically summarize the recent work on the electronic and spintronic devices of 2DMMs.In the section of electronic properties,we raise several exciting phenomena in 2DMMs,i.e.,long-distance magnon transport,field-effect transistors,varying magnetoresistance behavior,and(quantum)anomalous Hall effect.In the section of spintronic applications,we highlight spintronic devices based on 2DMMs,e.g.,spin valves,spin-orbit torque,spin field-effect transistors,spin tunneling field-effect transistors,and spin-filter magnetic tunnel junctions.At last,we also provide our perspectives on the current challenges and future expectations in this field,which may be a helpful guide for theorists and experimentalists who are exploring the optical,electronic,and spintronic properties of 2DMMs.Vertikasari PNingrum Bowen Liu Wei Wang Yao Yin Yi Cao Chenyang Zha Hongguang Xie Xiaohong Jiang Yan Sun Sichen Qin Xiaolong Chen Tianshi Qin Chao Zhu Lin Wang Wei Huang 2020Research2020,,1:2
13Reduction of electric field strength by two species of trees under power transmission lines显示文摘Electrical pollution is a worldwide concern,because it is potentially harmful to human health.Trees not only play a significant role in moderating the climate,but also can be used as shields against electrical pollution.Shielding effects on the electric field strength under transmission lines by two tree species,Populus alba and Larix gmelinii,were examined in this study.The electrical resistivity at different heights of trees was measured using a PiCUS sonic tomograph,which can image the electrical impedance for trees.The electric field strength around the trees was measured with an elf field strength measurement system,HI-3604,and combined with tree resistivity to develop a model for calculating the electric field intensity around trees using the finite element method.In addition,the feasibility of the finite element method was confirmed by comparing the calculated results and experimental data.The results showed that the trees did reduce the electric field strength.The electric field intensity was reduced by 95.6%,and P.alba was better than L.gmelinii at shielding.Hongwei Zhou Liping Sun Yang Yang Che Liu Tianshi Liu Penghao Xie Ling Ma 2018Journal of Forestry Research2018,29,5:2
14Handheld optical coherence tomography device for photodynamic therapy显示文摘Photodynamic therapy (PDT) is a very effective treatment for port wine stains (PWS). To guide and assess PDT treatment, a handheld optical coherence tomography (OCT) probe was designed for real-time imaging of the PWS patient. The system uses a light source with a center wavelength of 1310 nm, -3 dB bandwidth of 90 nm and an optical power of 9 mW. The system also has a spatial resolution of 8 μm (lateral) × 7 μm (axial), an imaging rate of 4 frames per second, and a 102 dB sensitivity. We then demonstrate that the OCT imaging system can clearly distinguish between normal and PWS tissues. Therefore, the system can provide valuable guidance for PDT treatment.WANG TianShi WANG ChengMing HUANG NaiYan ZHANG Jian GU Ying XUE Ping 2012Chinese Science Bulletin2012,57,5:2
15Global robust stabilization of feedforward systems with uncertainties显示文摘This paper studies the global robust stabilization problem for a class of feedforward systems that is subject to both dynamic and time-varying static uncertainties.A small gain theorem-based bottom-up recursive design is developed for constructing a nested saturation control law.At each recursion,two versions of small gain theorem with restrictions are employed to establish the global attractiveness and local stability of the closed-loop system at the equilibrium point,respectively.Tianshi CHEN Jie HUANG 2010控制理论与应用(英文版)2010,8,3:1
16Optimization of nutritional conditions for nattokinase production by Bacillus natto NLSSE using statistical experimental methods显示文摘Junguo Liu Jianmin Xing Tianshi Chang 2005Process Biochemistry2005,40,8:1
17Ranking fuzzy numbers with integral value 显示文摘Liou Tianshy WANG Mao-Jiun 1992Fuzzy Sets and Systems1992,50,3:1
18Spatio-temporal Evolution Characteristics and Driving Mechanism of the New Infrastructure Construction Development Potential in China显示文摘With the advent of the era of big data and artificial intelligence, new infrastructure construction(NIC) has attracted the attention of many countries. The development of NIC provides an opportunity to bridge the digital divide and narrow the regional gap,providing continuous impetus to further promote economic development. Here, we considered 31 provincial-level administrative units in China(not including Hong Kong, Macao, and Taiwan of China due to data unavailable) and established comprehensive evaluation indicators for the development potential of NIC. Afterward, we used the entropy-weight TOPSIS model to determine the development potential of NIC and analyze its spatio-temporal evolution characteristics. Furthermore, the GeoDetector model was applied to explore the driving mechanism of the NIC development potential. The conclusions were as follows: (1) The Chinese NIC development potential is generally low. The eastern China was the region with the highest development potential year by year, while the development potential in the central China was found to be in an accelerating phase. (2) The evolution of the Chinese NIC development potential’s spatial pattern has been characterized by an inland extension and coastal agglomeration. Moreover, we identified a superior development zone, a rising development zone, an inferior development zone, and a declining development zone. (3) The scope of Chinese NIC development potential agglomeration areas has gradually expanded and its degree has gradually deepened. The range of high-value agglomeration in eastern area gradually expanded and its degree gradually deepened. (4) Investment in innovative talents appears as the core factor affecting the Chinese NIC development potential. Whether acting alone or synergistically with other factors, its promoting effect on Chinese NIC development potential is the strongest.GU Tianshi ZHANG Peng ZHANG Xujia 2021Chinese Geographical Science2021,31,4:1
19显示文摘Liu Zhilin Dai Tianshi Yang Shuangliang 1989Science in China(Series A)1989,32,11:1
20Optimization of nutritional conditions for nattokinasc production by Bacillus natto NLSSE using statistical experimental methods显示文摘LIU Junguo XING Jianmin CHANG Tianshi 2005Process Biochemistry2005,40,8:1
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