检索结果-南通市图书馆

Unlocking a novel determinant of athletic performance:The role of the gut microbiota,short-chain fatty acids,and“biotics”in exercise

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2023年第1期12卷 36-44页

作者： Kate m.Sales Raylene A.Reimer Faculty of Kinesiology University of CalgaryCalgaryAB T2N 1N4Canada Department of Biochemistry&molecular Biology Cumming School of MedicineUniversity of CalgaryCalgaryAB T2N 4N1Canada

The gut microbiota refers to the collection of trillions of intestinal microorganisms that modulate central aspects of health and disease through influential effects on host ***,a connection has been made between the gut microbiota and *** investigations demonstrated the beneficial effects of exercise on the gut microbiota,with cross-sectional studies revealing positive correlations between exerciseassociated states,and healthy gut microbiota and exercise interventions showed post-intervention increases in the abundance of beneficial bacterial *** recent investigations have focused on exploring the reverse relationship:the influence of the gut microbiota on exercise *** investigations have revealed that certain bacterial taxa may enhance endurance exercise performance by augmenting various aspects of lactate ***,short-chain fatty acids—which modulate metabolism at various organ sites,including within skeletal muscle—have been shown to enhance endurance exercise capacity in *** review highlights what is currently known about the connection between the gut microbiota and exercise,with a particular focus on the ergogenic potential of the gut microbiota and how it may be leveraged to enhance endurance exercise performance.

关键词： Exercise performance Gut microbiota Short-chain fatty acids

EXPERImENT AND THERmODYNAmIc ANALYSIS ON THE PHASE STABILITY OF LOW AcTIVATION Fe-cr-mn(W,V) ALLOY

在线全文

学校读者我要写书评

暂无评论

Acta metallurgica Sinica(English Letters) 2002年第6期15卷 492-498页

作者： Q.m. Yu, B.F. Hu, c.c. Jia and Em. chenSchool of materials Science and Engineering of University of Science and Technology Beijing, Beijing 100083, chinaNingxia University, Yinchuan 750021,china School of materials Science and Engineering of University of Science and Technology Beijing Beijing 100083 China

Phase stability of four different chemical component Fe-cr-mn(W, V) alloys are investigated by experimental method and thermodynamic model in this paper. It is indicated that the main phase of four alloys after aged under 623, 673, 773K for 200h are austenitic phase. The results of Thermo-calc, which are based on Gibbs energy, show that the phases of four alloys under ihe same temperature as experimental method are single austenitic phase. The results of experimental method and Thermo-calc agree well.

关键词： phase stability Fe-cr-mn(W V) alloy Thermo-calc

Effect of shifting cultivation on soil physical and chemical properties in Bandarban hill district, Bangladesh

在线全文

学校读者我要写书评

暂无评论

Journal of Forestry Research 2013年第4期24卷 791-795页

作者： Khandakar Showkat Osman m.Jashimuddin S.m.Sirajul Haque Sohag miah Institute of Forestry and Environmental Sciences University of Chittagong

This study reports the effects of shifting cultivation at slashing stage on soil physicochemical properties at Bandarban Sadar Upazila in chittagong Hill Tracts of Bangladesh. At this initial stage of shifting cultivation no general trend was found for moisture content, maximum water holding capacity, field capacity, dry and moist bulk density, parti- cle density for some chemical properties between shifting cultivated land and forest having similar soil texture. Organic matter was significantly 0.05） lower in 1-year and 3-year shifting cultivated lands and higher in 2-year shifting cultivation than in adjacent natural forest. Significant differences were also found for total N, exchangeable ca, mg and K and in cEc as well as for available P. Slashed area showed higher soil pH. Deterioration in land quality starts from burning of slashing materials and continues through subsequent stages of shifting cultivation.

关键词： chittagong Hill Tracts natural forest shifting cultivation soil properties

Theoretical study on the favored alpha-decay half-lives of deformed nuclei

在线全文

学校读者我要写书评

暂无评论

chinese Physics c 2021年第12期45卷 140-146页

作者： m.Hassanzad O.N.Ghodsi Department of Physics Faculty of Basic SciencesUniversity of MazandaranP.O.Box 47416-416BabolsarIran

A systematic study on the a-decay half-lives of nuclei in the range 93≤Z≤118 is performed by employing various versions of proximity *** obtain more reliable results,deformation terms are included up to hexadecapole(β_(4))in the spherical-deformed nuclear and coulomb interaction ***,the favored a-de-cay processes in this region are categorized as even-even,odd A,and odd-odd ***,they are grouped into two transitions:ground state to ground state and ground state to isomeric *** to the comparison of their root-mean-square deviations(RmSD's),Bassll and Ngo80 have the lowest values and better reproduce experimental ***,by considering preformation probability within the cluster formation model,the results validate the significant reduction in root-mean-square deviations obtained for different versions of ***,the deviation between the calculated and experimental data is detracted.

关键词： alpha-decay deformation proximity potential isomeric state ground state

Application of functional near-infrared spectroscopy in the healthcare industry:A review

在线全文

学校读者我要写书评

暂无评论

Journal of Innovative Optical Health Sciences 2019年第6期12卷 108-198页

作者： Keum-Shik Hong m.Atif Yaqub School of mechanical Engineering Pusan National University Busan 46241 Republic of Korea Department of cogno-mechatronics Engineering Pusan National University Busan 46241 Republic of Korea

Functional near-infrared spectrosoopy(NIRS),a growing neuroimaging modality,has been utilized over the past few decades to understand the neuronal behavior in the *** technique has been used to assess the brain hemodynamics of impaired cohorts as well as *** is a critical technique for patients with inpaired cognitive or motor *** portable nature of the fNIRS system is suitable for frequent monitoring of the patients who exhibit impaired brain *** study comprehensively reviews brain impaired patients:The studies involving patient populations and the diseases discussed in more than 10 works are *** diseases examined in this paper include autism spectrum disorder,attentiondeficit hyperactivity disorder,epilepsy,depressive disorders,anxiety and panic disorder,schizophrenia,mild cognitive impairment,Alzheimer's disease,Parkinson's disease,stroke,and traumatic brain *** each disease,the tasks used for exarmination,NIRS variables,and significant findings on the impairment are *** channel configurations and the regions of interest are also *** the occurrence of symptoms at an earlier stage is vital for better rehabilitation and faster *** paper ilustrates the usability of fNIRS for early detection of inpairment and the usefulness in monitoring the rehabilitation ***,the limitations of the current fNIRS systems(ie,nonexistence of a standard method and the lack of well-established features for classification)and future research directions are *** authors hope that the findings in this paper would lead to advanced breakthrough discoveries in the fNIRS field in the future.

关键词： NIRS brain impairment psychiatric disorder degenerative brain disease brain injury patient

Properties of vapor-deposited and solution-processed targets for laser-driven inertial confinement fusion experiments

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

matter and Radiation at Extremes 2018年第6期3卷 312-321页

作者： D.R.Harding m.J.Bonino W.Sweet m.Schoff A.Greenwood N.Satoh m.Takagi A.Nikroo Laboratory for Laser Energetics University of Rochester250 East River RoadRochesterNY 14623-1299USA Department of chemical Engineering University of RochesterRochesterNY 14623-1299USA General Atomics 3550 General Atomics CourtSan DiegoCA 92121-1122USA Industrial Development center Central Research LaboratoryHamamatsu Photonics K.K.Hamamatsu CityShizuoka Pref.431-1202Japan Institute of Laser Engineering Osaka University2e6 YamadaokaSuitaOsaka 565-0871Japan Lawrence Livermore National Laboratory P.O.Box 808LivermoreCA94550USA

Targets for low-adiabat direct-drive-implosion experiments on OmEGA must meet rigorous specifications and tight tolerances on the diameter,wall thickness,wall-thickness uniformity,and presence of surface *** these,restrictions on the size and number of defects(bumps and depressions)on the surface are the most *** properties of targets that are made using vapor-deposition and solution-based microencapsulation techniques are *** were characterized using confocal microscopy,bright-and dark-field microscopy,atomic force microscopy,electron microscopy,and *** technique has merits and limitations,and a combination of these techniques is necessary to adequately characterize a *** main limitation with the glow-discharge polymerization(GDP)method for making targets is that it produces hundreds of domes with a lateral dimension of 0.7-2 μ*** these targets reduces the size of some but not all domes,but it adds scratches and grooves to the ***-made polystyrene shells lack the dome features of GDP targets but have hundreds of submicrometer-size voids throughout the wall of the target;a few of these voids can be as large as~12 μm at the surface.

关键词： Vapor-deposition Direct-drive target OmEGA Target characterization Solution-based microencapsulation

cosmology with Two compactification Scales

维普期刊数据库评论

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 Physics Letters 2000年第4期17卷 310-312页

作者： A.G.Agnese m.La camera Dipartimento di Fisica delPUniversita di Genova Istituto Nazionale di Fisica NucleareSezione di Genova Via Dodecaneso 3316146 GenovaItaly

We consider a(4+d)-dimensional spacetime broken up into a(4-n)-dimensional minkowski spacetime(where n goes from 1 to 3)and a compact(n+d)-dimensional *** the present time the n compactification radii are of the order... 详细信息

关键词： manifold. length. minkowski

magnesium Uptake and Palygorskite Transformation Abilities of Wheat and Oat

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Pedosphere 2012年第6期22卷 834-841页

作者： m.H.SALEHI L.TAHAmTANI Department of Soil Science College of AgricultureShahrekord UniversityShahrekord(Iran)

Weathering of clay minerals is a source of nutrients to plants. Palygorskite is a mg-rich fibrous clay mineral that commonly occurs in the soils and sediments of arid regions. Although many studies have examined the environmental conditions required for the formation and stability of palygorskite, information on the transformation of this mineral in the root zone （or rhizosphere） of agricultural crops is limited. This study explored the possibility of palygorskite transformation in the rhizosphere of wheat and oat and compared the ability of these crops to extract structural mg from palygorskite. The crops were cultivated in pots consisting of a mixture of sand from Hamadan region, Iran and Florida palygorskite, irrigated with distilled water, and treated with either complete or mg-free nutrient solutions. After 100 d, mg uptake by the crops was measured. clay-sized particles in each pot were also separated from the sand and were analyzed through X-ray diffraction （XRD）. The X-ray pattern of the particles was compared with that of the pure palygorskite particles （before cultivation）. The results showed that palygorskite could provide sufficient mg for the growth of wheat in the pots supplied with mg-free nutrient solution. In spite of the magnesium uptake by both plants from the palygorskite structure, no detectable peaks indicating the transformation of pmygorskite were recognized by XRD. A decrease of 1.05 nm in peak intensity was more obvious for the pots containing palygorskite and irrigated with mg-free nutrient solution than for the pots irrigated with complete nutrient solution. Although the decrease in peak intensity was greater for oat than wheat, indicating greater palygorskite weathering by oat, mg uptake by oat was low, as evidenced by the deficiency symptoms observed.

关键词： clay minerals nutrient solution rhizosphere weathering X-ray diffraction

Yoga as a complementary therapy for metabolic syndrome:A narrative review

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative medicine 2021年第1期19卷 6-12页

作者： Dastan m.Khoshnaw Abhijit A.Ghadge Department of Botany Fergusson CollegeSavitribai Phule Pune UniversityPuneMaharashtra 411004India Diabetes Laboratory Interactive Research School for Health AffairsBharati VidyapeethPuneMaharashtra 411043India

metabolic syndrome(mS)is associated with a sedentary and stressful lifestyle and affects underactive people *** is considered to be a low-impact mind-body stress-relieving exercise,and researchers are increasing their focus on the benefits of yoga for managing metabolic *** is also important for physicians and health care professionals to understand the therapeutic efficacy of yoga intervention,in terms of its type,duration and frequency on various mS risk *** present review summarizes the current scientific understanding of the effects of yoga on mS risk factors such as glucose homeostasis markers,lipid profile,adipocytokines and cardiovascular risk factors,and discusses the possible mechanisms of ***,Pub med,Scopus and cochrane Library were searched from their inception up to December 2019,using the keywords“metabolic syndrome,”“diabetes,”“cardiovascular diseases,”“obesity”and“yoga.”The literature summarized in this review have shown mixed effects of yoga on mS risk factors and do not provide robust evidence for its *** rigorous research and well-designed trials that have a higher standard of methodology and evaluate yoga's long-term impacts on mS are *** yoga's biochemical and molecular mechanisms of action on various metabolic pathways is also needed.

关键词： cardiovascular diseases Diabetes metabolic syndrome Obesity Yoga