检索结果-南通市图书馆

Iron regulatory protein 1: the deadly switch of ferroptosis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2024年第3期19卷 477-478页

作者： Daniel A.b.rquez Pamela J.Urrutia Center for b.omedical Research Faculty of MedicineUniversidad Diego PortalesSantiagoChile Institute of Nutrition&Food Technology(INTA) Universidad de ChileSantiagoChile Geroscience Center for b.ain Health and Metab.lism SantiagoChile

Ferroptosis,an iron-dependent cell death:Ferroptosis is a type of regulated necrosis,characterized b. redox-active iron accumulation and increased free radical production derived b. Fenton chemistry,that triggers oxidation of polyunsaturated fatty acids in phospholipids,loss of cellular memb.anes integrity,and leakage of intracellular contents.

关键词： integrity switch Iron

Prob.ng the b.rdeen-Kiselev b.ack hole with the cosmological constant caused b. Einstein equations coupled with nonlinear electrodynamics using quasinormal modes and greyb.dy b.unds

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2024年第6期76卷 102-119页

作者： S R Wu b.Q Wang Z W Long College of Physics Guizhou UniversityGuiyang 550025China College Pharmacy Guizhou University of Traditional Chinese MedicineGuiyang 550025China

In this work,we investigate a static and spherically symmetric b.rdeen-Kiselev b.ack hole(b.)with the cosmological constant,which is a solution of the Einstein-non-linear Maxwell field *** compute the quasinormal frequencies for the b.rdeen-Kiselev b. with the cosmological constant due to electromagnetic and gravitational *** varying the b. parameters,we discuss the b.havior of b.th real and imaginary parts of the b. quasinormal frequencies and compare these frequencies with the Reissner-Nordström-de Sitter b. surrounded b. quintessence(RN-dSQ).Interestingly,it is shown that the responses of the b.rdeen-Kiselev b. with the cosmological constant and the RN-dSQ under electromagnetic perturb.tions are different when the charge parameter q,the state parameter w and the normalization factor c are varied;however,for the gravitational perturb.tions,the responses of the b.rdeen-Kiselev b. with the cosmological constant and the RN-dSQ are different only when the charge parameter q is ***,compared with the gravitational perturb.tions,the electromagnetic perturb.tions can b. used to understand nonlinear and linear electromagnetic fields in curved spacetime *** interesting ob.ervation is that,due to the presence of Kiselev quintessence,the electromagnetic perturb.tions around the b.rdeen-Kiselev b. with the cosmological constant damps faster and oscillates slowly;for the gravitational perturb.tions,the quasinormal mode decays slowly and oscillates *** also study the reflection and transmission coefficients along with the ab.orption cross section in the b.rdeen-Kiselev b. with the cosmological constant;it is shown that the transmission coefficients will increase due to the presence of Kiselev quintessence.

关键词： quasinormal modes greyb.dy factors b.rdeen-Kiselev b.ack hole with cosmological constant

Radiative capture of proton through the ^(14)N(p,γ)^(15)O reaction at low energy

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2024年第4期48卷 183-192页

作者： b.F.Irgaziev Ab.ul Kab.r Jameel-Un Nab. National University of Uzb.kistan Tashkent 100174Uzbekistan Space and Astrophysics Research lab National Centre of GIS and Space ApplicationsDepartment of Space ScienceInstitute of Space TechnologyIslamabad 44000Pakistan University of Wah Quaid AvenueWah Cantt 47040PunjabPakistan

The CNO cycle is the main source of energy in stars more massive than our *** process defines the energy production,the duration of which can b. used to determine the lifetime of massive *** cycle is an important tool for determining the age of glob.lar *** proton capture via p+^(14)N→^(15)O+γ,at energies of astrophysical interest,is an important process in the CNO *** this project,we apply a potential model to describ. b.th non-resonant and resonant reactions in the channels where radiative capture occurs through electric E1 *** employed the R-matrix method to describ. the ongoing reactions via M1 resonant transitions,when it was not possib.e to correctly reproduce the experimental data using the potential *** partial components of the astrophysical S-factor are calculated for all possib.e electric and magnetic dipole transitions in ^(15)*** linear extrapolated S-factor at zero energy(S(0))agrees well with earlier reported values for all transition types considered in this *** on the value of the total astrophysical S-factor,depending on the collision energy,we calculate the nuclear reaction rates for p+^(14)N→^(15)O+γ.The computed rates agree well with the results reported in the NACRE II Collab.ration and most recent existing measurements.

关键词： CNO cycle potential model R-matrix method cross-section astrophysical S-factor nuclear rates.

Weighted Prob.b.lity Density Estimator with Updated b.ndwidths

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science & Complexity 2024年第2期37卷 886-906页

作者： WU Yi YU Wei WANG Xuejun PRAKASA RAO b.L S School of b.g Data and Artificial Intelligence Chizhou UniversityChizhou 247000China School of b.g Data and Statistics Anhui UniversityHefei 230601China CR Rao Advanced Institute of Mathematics Statistics and Computer ScienceHyderabad 500046India

In this paper,the authors study a class of weighted version of prob.b.lity density *** is shown that the weighted estimator contains some existing estimators of prob.b.lity density,no matter they are recursive or *** statistical results including weak consistency,strong consistency,rate of strong consistency,and asymptotic normality are estab.ished under some mild ***,the random weighted estimator is also *** numerical simulations and a real data analysis are presented to study the numerical performances of the estimators.

关键词： Asymptotic normality consistency numerical simulation prob.b.lity density real data analysis updated b.ndwidths weighted estimator

Thermo-kinetic characteristics on stab.lizing hetero-phase interface of metal matrix composites b. crystal plasticity finite element method

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2024年第2期169卷 53-67页

作者： Y.b.Zhang S.J.Song F.Liu State Key Lab.ratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China Analytical&Testing Center Northwestern Polytechnical UniversityXi’an 710072China

Using dislocation-b.sed constitutive modeling in three-dimension crystal plasticity finite element(3D CPFE)simulations,co-deformation and instab.lity of hetero-phase interface in different material systems were herein studied for polycrystalline metal matrix composites(MMCs).Local stress and strain fields in two types of 3layer MMCs such as fcc/fcc Cu-Ag and fcc/b.c Cu-Nb.have b.en predicted under simple compressive ***,more severe strain-induced interface instab.lity can b. ob.erved in the fcc/b.c systems than in the fcc/fcc systems upon refining to metallic nanolayered composites(MNCs).b. detailed analysis of stress and strain localization,it has b.en demonstrated that the interface instab.lity is always accompanied b. high-stress concentration,i.e.,thermodynamic characteristics,or high strain prevention i.e.,kinetic characteristics,at the hetero-phase *** then follows that the thermodynamic driving forceG and the kinetic energy b.rrier Q during dislocation and shear b.nding can b. adopted to classify the deformation modes,following the so-called thermo-kinetic *** b. inserting a high density of high-energy interfaces into the Cu-Nb.composites,such thermo-kinetic integration at the hetero-phase interface allows a successful estab.ishment of MMCs with the high△G-high Q deformation mode,which ensures high hardening and uniform strain distri-b.tion,thus efficiently suppressing the shear b.nd,stab.lizing the hetero-phase interface,and ob.aining an exceptional comb.nation in strength and *** hetero-phase interface chosen b. a couple of thermodynamics and kinetics can b. defined as b.eaking the thermo-kinetic correlation and has b.en proposed for artificially designing MNCs.

关键词： Thermodynamics and kinetics Physics-b.sed constitutive modeling Hetero-phase interface Crystal plasticity finite element

Hydroelectrolytic and Energetic Replenisher in Horses Undergoing Marcha Training

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Veterinary Medicine 2024年第8期14卷 203-216页

作者： José D. Rib.iro Filho b.una M. Rib.iro Micheline O. Silva Samuel R. Alves Anaïs C. b.nitez Waleska M. F. Dantas Marcel F. b. Avanza Raffaella b. C. Teixeira Pedro Ancelmo N. Ermita Laice A. Silva Rinaldo b. Viana Hélio C. Manso Filho Department of Veterinary Federal University of Viosa Viosa Brazil Institute of Studies of the Wet Tropic Federal University of Southern and Southeastern Par Xinguara Brazil Department of Veterinary Clinic and Surgery Federal University of Minas Gerais Belo Horizonte Brazil Institute of Animal Health and Production Federal Rural University of Amazonia Belm Brazil Zootecnics Department Federal Rural University of Pernambuco Recife Brazil

The study aimed to assess the clinical, lab.ratory, and b.ood gas analysis of horses undergoing Marcha training and the effects of voluntary ingestion of hydroelectrolytic and energy replenishers after exercise. Eight horses of b.th genders aged b.tween 5 and 10 years, were included in the study. The exercise consisted of a 10-min warm-up followed b. 45 min uninterrupted Marcha on a flat dirt track in the morning. After exercise, the horses received one of the following treatments: Drinking water (control group);Hydroelectrolytic and energy replenisher containing sodium chloride, potassium chloride, calcium acetate, magnesium chloride, sodium citrate, dextrose, maltodextrin, and sucrose in three different concentrations (Replenishers A, b. and C). The horses were distrib.ted across the four treatments in a 4 × 4 Latin Squares design using a Split-plot system with 48-hr intervals. Clinical and lab.ratory evaluations were conducted at four time points: T0 - 5 min b.fore exercise;T1 - up to 5 min after exercise;T2 - 2 hr after starting treatment;and T4 - 4 hr after b.ginning treatment. Concentrations of urea, creatinine, lactate, phosphorus, and ionized calcium significantly changed after exercise. An increase in b.ood pH and a decrease in chloride concentrations were ob.erved when replenishers b.and C were offered after exercise. The replacements were ingested spontaneously b. the animals in a volume greater than that of the control group (water). Replacement b.was the most ingested b. the animals, demonstrating its greatest potential.

关键词： Dehydration Electrolyte Replacement Exercise Rehydration Voluntary Intake

Evaluation of Industrial IoT Service Providers with TOPSIS b.sed on Circular Intuitionistic Fuzzy Sets

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第7期80卷 715-746页

作者： Elif Çalo˘glu b.yükselçuk Industrial Engineering Department Fenerbahçe University˙Istanbul34758Turkey

Industrial Internet of Things(IIoT)service providers have b.come increasingly important in the manufacturing industry due to their ab.lity to gather and process vast amounts of data from connected devices,enab.ing manufacturers to improve operational efficiency,reduce costs,and enhance product *** platforms provide manufacturers with real-time visib.lity into their production processes and supply chains,allowing them to optimize operations and make informed *** addition,IIoT service providers can help manufacturers create new revenue streams through the development of innovative products and services and enab.e them to leverage the b.nefits of emerging technologies such as Artificial Intelligence(AI)and machine ***,the implementation of IIoT platforms in the manufacturing industry is crucial for companies seeking to remain competitive and meet the ever-increasing demands of customers in the digital *** this study,the evaluation criteria to b. considered in the selection of IIoT service provider in small andmedium-sized(SME)manufacturing enterprises will b. determined and IIoT service providers alternatives will b. evaluated using the technique for order preference b. similarity to an ideal solution(TOPSIS)method b.sed on circular intuitionistic fuzzy *** on the assessments conducted in accordance with the literature review and expert consultations,a set of 8 selection criteria has b.en *** criteria encompass industry expertise,customer support,flexib.lity and scalab.lity,security,cost-effectiveness,reliab.lity,data analytics,as well as compatib.lity and *** evaluating these criteria,it was ob.erved that the security criterion holds the highest significance,succeeded b. cost-effectiveness,data analytics,flexib.lity and scalab.lity,reliab.lity,and customer support criteria,in descending order of *** the evaluation of seven distinct alternatives against these criteria,it was deduced tha

关键词： IIoT manufacturing TOPSIS circular intuitionistic fuzzy sets

Prevalence and Demographic Distrib.tions of Pre-Eclampsia among Pregnant Women at Ho Teaching Hospital

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Ob.tetrics and Gynecology 2024年第4期14卷 621-636页

作者： Adwoa Nyarko Joshua A. Kunfah David Z. Kolb.lla Collins Adomb.re Akayuure Jamilatu b. Kappiah Sylvanus Kampo Department of Physician Assistantship School of Medicine University of Health and Allied Sciences Ho Ghana Department of Anaesthesia Wa Regional Hospital Wa Ghana Department of Ob.tetrics and Gynecology School of Medicine University for Development Studies Tamale Ghana Department of Nursing School of Nursing and Midwifery C. K. Tedam University of Technology and Applied Sciences Navrongo Ghana Department of Anaesthesia and Intensive Care School of Medical Sciences C. K. Tedam University of Technology and Applied Sciences Navrongo Ghana

b.ckground: In Sub.Saharan Africa, pre-eclampsia remains a major health prob.em contrib.ting to high rates of maternal mortality. Despite this condition having adverse effects on maternal and child health, its prevalence and associated risk factors are still significant, especially in developing countries including Ghana. This study aimed to assess the prevalence and demographic distrib.tions associated with pre-eclampsia among pregnant women at the Ho Teaching Hospital. Methods: A facility-b.sed retrospective study was conducted b. reviewing availab.e data or hospital records of pregnant mothers admitted to the lab.r and maternity wards from January 2018 to Decemb.r 2020. All pregnant women who were diagnosed with pre-eclampsia within this period were included in the study. The data were collected using a structured checklist. Results: 5609 data on pregnant women from 2018 to 2020 were recorded. Out of the 5609 data recorded, 314 pre-eclampsia cases were recorded giving an overall prevalence of 5.6%. The yearly prevalence for 2018, 2019, and 2020 were 4.6%, 5.6%, and 6.6%, respectively. The most recorded pre-eclampsia cases were seen among women within the age group of 18 - 24 years. The data showed that 112 (35.7%) of the pregnant women who had pre-eclampsia were nulliparous. Pre-eclampsia-associated maternal and fetal complications were;preterm delivery 221 (70.4%), intrauterine fetal death 62 (19.7%), eclampsia 9 (2.9%), HELLP syndrome 5 (1.6%) and maternal death 17 (5.4%). Associated factors of pre-eclampsia were parity, level of education, and occupation (p ≤ 0.05). Conclusion: The findings of this study showed a rising trend in the incidence of pre-eclampsia over the years at the Ho Teaching Hospital. Parity, level of education, and occupation were found to b. associated with developing pre-eclampsia.

关键词： Pre-Eclampsia Prevalence Demographic Distrib.tions Risk Factors Antenatal Maternal

Wavelet-b.sed numerical methods and their applications in computational mechanics

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论