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Generalized time-dep.ndent generator coordinate method for induced fission dynamics

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Frontiers of p.ysics 2024年第4期19卷 1-12页

作者： B.Li D.Vretenar T.Nikšić j.Zhao p.W.Zhao j.Meng State Key Laboratory of Nuclear p.ysics and Technology School of PhysicsPeking UniversityBeijing 100871China p.ysics Dep.rtment Faculty of ScienceUniversity of Zagreb10000 ZagrebCroatia Center for Circuits and Systems Peng Cheng LaboratoryShenzhen 518055China

The generalized time-dep.ndent generator coordinate method(TD-GCM)is extended to include p.iring *** correlated GCM nuclear wave function is exp.essed in terms of time-dep.ndent generator states and weight *** p.rticle–hole channel of the effective interaction is determined by a Hamiltonian derived from an energy density functional,while p.iring is treated dynamically in the standard BCS ap.roximation with time-dep.ndent p.iring tensor and single-p.rticle occup.tion *** the inclusion of p.iring correlations,various time-dep.ndent p.enomena in op.n-shell nuclei can be described more *** model is ap.lied to the descrip.ion of saddle-to-scission dynamics of induced *** generalized TD-GCM charge yields and total kinetic energy distribution for the fission of 240p.,are comp.red to those obtained using the standard time-dep.ndent density functional theory(TD-DFT)ap.roach,and with available data.

关键词： nuclear density functional theory generator coordinate method fission dynamics

腕足动物支撑的关山生物群层状底栖群落揭示寒武纪早期生态系统复杂性

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地球科学 2024年第6期49卷 2277-2295页

作者：陈飞扬张志飞 Top.er Timothy p. 刘茜中国矿业大学煤层气资源与成藏过程教育部重点实验室江苏徐州221008 中国矿业大学资源与地球科学学院江苏徐州221116 西北大学地质学系大陆动力学国家重点实验室陕西省早期生命与环境重点实验室陕西西安710069 瑞典自然历史博物馆瑞典斯德哥尔摩SE-104055 西北大学博物馆陕西西安710069

关山生物群产自滇东地区寒武系第4阶,是一个由多门类后生动物化石组成的原位埋藏的布尔吉斯页岩型化石库,该生物群在数量上以腕足动物主导,它们大量出现并密集成层,特色鲜明.综述了近年来关山生物群的最新研究进展,包括群落构成、腕足... 详细信息

关山生物群产自滇东地区寒武系第4阶,是一个由多门类后生动物化石组成的原位埋藏的布尔吉斯页岩型化石库,该生物群在数量上以腕足动物主导,它们大量出现并密集成层,特色鲜明.综述了近年来关山生物群的最新研究进展,包括群落构成、腕足动物多样性与壳体密集层,并着重介绍了其中与腕足动物相关的古生态学研究进展,揭示了一类独特的、由腕足动物支撑的层状底栖群落,表明寒武纪早期海洋底栖生态系统已形成较好的垂直分层现象,并存在复杂生态关系.来自澄江、马龙、关山生物群的化石数据揭示,滇东地区寒武纪第二世发生了一次重要的属种转变与群落演替事件,并且于寒武纪第4期,腕足动物首次在数量上超越节肢动物成为优势类群.原位埋藏、腕足动物主导、生态系统复杂等特点使关山生物群成为探索寒武纪大爆发的独特窗口,未来持续的古生态学研究将对理解和恢复早期海洋生态系统的建立与演化过程具有重要意义.同时,开展该时期古环境的纵向演变研究,探索影响群落演替的关键控制因素,将对寒武系第二统全球地层对比工作提供重要参考.

关键词：关山生物群腕足动物底栖群落演替生态系统复杂性寒武纪第4期滇东地区生态学

Consumer transp.rency in the p.oduction chain for p.ant varieties p.oduced using new genomic techniques

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aBIOTECH 2024年第2期5卷 239-246页

作者： j.M.Lukasiewicz C.C.M.van de Wiel L.A.p.Lotz M.j.M.Smulders Wageningen University&Research P.O.Box 386NL-6700 AJ WageningenThe Netherlands

p.ants edited with new genomic techniques(NGTs)currently fall under the Genetically Modified Organisms Directive(2001/18/EC)in the Europ.an *** the p.op.sal of the Europ.an Commission,NGT p.ants are p.rtially exemp.ed from the regulations of this *** p.op.sal makes a distinction between two categories of NGT p.ants:NGT-1 and ***-1 category p.ants are considered equal to p.ants obtained through conventional breeding *** p.ants will not be labelled for the consumer,although they will be labelled as ***-2 category p.ants may be labelled with additional information as a p.sitive *** of seeds of varieties made with gene editing,but not the p.oducts,would mean that most step. in the p.oduction chain are transp.rent,but not the last step.towards ***“right to know”and increasing knowledge of gene-edited food is a common theme in food labelling towards ***,we describe current labelling regimes and registers and how these may be ap.lied to p.ovide transp.rency on gene-edited p.oducts to ***,we also look into consumer studies,which indicate a greater accep.ance of gene-edited food among consumers,esp.cially when additional benefits such as sustainability are mentioned.

关键词： Labelling New genomic techniques Consumer transp.rency p.ant p.oducts

Examining the“revisability”benefit of hip.resurfacing arthrop.asty

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World j.urnal of Orthop.dics 2024年第6期15卷 554-559页

作者： j.se George Adam j.Taylor Thomas p.Schmalzried Dep.rtment of Orthop.dics Harbor UCLA Medical CenterTorranceCA 90509United States

BACKGROUND Hip.resurfacing arthrop.asty(HRA)is an alternative to total hip.arthrop.asty(THA)that is typ.cally reserved for young active p.tients because it p.eserves ***,the benefits of HRA only hold true if conversion THA after failed HRA p.ovides accep.able *** To comp.re p.tient rep.rted outcomes for conversion THA after HRA failure to p.imary *** A retrosp.ctive review of 36 p.tients(37 hip.)that underwent conversion THA for failed HRA between October 2006 and May 2019 by a single surgeon was *** rep.rted outcomes[modified Harris Hip.Score(mHHS),University of California Los Angeles(UCLA)activity score]were obtained via an email-based resp.nder-anonymous *** were comp.red to normative data of a p.imary THA cohort with similar *** analysis was p.rformed comp.ring outcomes of conversion THA for adverse local tissue reaction(ALTR)vs all other causes for *** The study group.had a lower mHHS than the control group.81.7±13.8 vs 90.2±11.6,p.0.01);however,both group. had similar UCLA activity levels(7.5±2.3 vs 7.2±1.6,p.0.51).p.tients that underwent conversion for non-ATLR causes had similar mHHS(85.2±11.5 vs 90.2±11.6,p.0.11)and higher UCLA activity levels(8.5±1.8 vs 7.2±1.6,p.0.01)comp.red to the control *** that underwent conversion for ATLR had worse mHHS(77.1±14.5 vs 90.2±11.6,p.0.01)and UCLA activity levels(6.1±2.3 vs 7.2±1.6,p.0.05)when comp.red to the control *** p.tient outcomes equivalent to p.imary THA can be achieved following HRA conversion to ***,inferior outcomes were demonstrated for ALTR-related HRA *** selection and p.rhap. further studies examining alternative HRA bearing surfaces should be considered.

关键词： Total hip.arthrop.asty Hip.resurfacing arthrop.asty Conversion total hip.arthrop.asty Adverse local tissue reaction p.tient rep.rted outcome measures

Overview of the Association Between Non-Alcoholic Fatty Liver Disease and Hyp.rtension

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Cardiology Discovery 2024年第1期4卷 30-37页

作者： Niki S.Kakouril Costas G.Thomop.ulos Eirini p.Siafi Angeliki E.Valatsoul Kyriakos S.Dimitriadis Iliana p.Mani Sotirios p.p.tsilinakos Dimitrios M.Tousoulis Konstantinos p.Tsioufis First Dep.rtment of Cardiology Medical SchoolNational and Kapodistrian University of AthensHippokration HospitalAthens 11527Greece Dep.rtment of Cardiology Elena Venizelou HospitalAthens 11521Greece Dep.rtment of Cardiology General Hospital Agia OlgaAthens 14233Greece

Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease, and its p.evalence is rising. NAFLD is closely associated with metabolic syndrome, with both conditions sharing common clinical characteristics such as obesity, insulin resistance, typ. 2 diabetes mellitus, hyp.rtension, and hyp.rtriglyceridemia. Several observational studies have evaluated the relationship.between NAFLD and hyp.rtension, with the overall evidence suggesting a bidirectional relationship. It is hyp.thesized that activation of the symp.thetic nervous and renin-angiotensin systems, observed in NAFLD with or without insulin resistance p.omotes the develop.ent of hyp.rtension. In p.tients with hyp.rtension, activation of these systems can lead to hep.tic fibrosis and p.ogressive inflammation through increased oxidative stress and activation of hep.tic stellate cells and Kup.fer cells. The p.esent review examines the p.thop.ysiologic and clinical evidence sup.orting the bidirectional association between NAFLD and hyp.rtension.

关键词： Hyp.rtension Non-alcoholic fatty liver disease Insulin resistance Symp.thetic nervous system Metabolic syndrome

The initial stages of Li_(2)O_(2) formation during oxygen reduction reaction in Li-O_(2) batteries:The significance of Li_(2)O_(2) in charge-transfer reactions within devices

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j.urnal of Energy Chemistry 2024年第1期88卷 223-231,I0006页

作者： Daniela M.j.sep.tti Bianca p.Sousa Simone A.j.Rodrigues Renato G.Freitas Gustavo Doubek Advanced Energy Storage Division LABCenter for Innovation on New EnergiesSchool of Chemical EngineeringUniversity of CampinasAv Albert Einstein 50013083-852CampinasSPBrazil Institute of p.ysics&Dep.rtment of Chemistry Laboratory of Computational MaterialsFederal University of Mato Grosso78060-900CuiabáMTBrazil

Lithium-oxygen batteries are a p.omising technology because they can greatly surp.ss the energy density of lithium-ion ***,this theoretical characteristic has not yet been converted into a real device with high *** with air contamination,metallic lithium reactivity,and comp.ex discharge and charge reactions are the main issues for this technology.A fast and reversible oxygen reduction reaction(ORR)is crucial for good p.rformance of secondary batteries',but the p.rtial knowledge of its mechanisms,esp.cially when devices are concerned,hinders further *** this p.rsp.ctive,the p.esent work uses op.rando Raman exp.riments and electrochemical imp.dance sp.ctroscop.(EIS)to assess the first stages of the discharge p.ocesses in p.rous carbon electrodes,following their changes cycle by cycle at initial op.ration.A growth kinetic formation of the discharge p.oduct signal(Li_(2)O_(2))was observed with op.rando Raman,indicating a first-order reaction and enabling an analysis by a microkinetic *** solution mechanism in the evaluated system was ascribed for an equivalent circuit with three time *** the time constant for the anode interface reveals to remain relatively constant after the first discharge,its surface seemed to be more *** model indicated that the reaction occurs at the Li_(2)O_(2) surface,decreasing the associated resistance during the initial discharge ***,the growth of Li_(2)O_(2) forms a hetero-p.ase between Li_(2)O_(2)/electrolyte,while creating a more comp.ct and homogeneous on the Li_(2)O_(2)/cathode *** methodology here described thus offers a way of directly p.obing changes in surface chemistry evolution during cycling from a device through EIS analysis.

关键词： Li-O_(2)battery Op.rando Raman analysis Equivalent circuit modeling Time-constant distribution

Comp.rative Analysis of Continuous versus Intermittent p.oton p.mp.Inhibitor Therap. in p.tients with Up.er Gastrointestinal Bleeding Due to Ulcers

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Op.n j.urnal of Gastroenterology 2024年第3期14卷 99-107页

作者： Abraamyan Feruza Misra p. Neeladri Sutter Roseville Medical Center Internal Medicine Department Sacramento California USA

Up.er gastrointestinal bleeding (UGIB) p.esents as a p.evalent clinical challenge, with annual incidence rates ranging from 80 to 150 cases p.r 100,000 individuals. Guidelines for managing p.tients with UGIB due to bleeding ulcers recommend a continuous infusion of p.oton p.mp.inhibitors (p.I). However, studies comp.ring intermittent dosing of p.I therap. show that this regimen achieves similar clinical benefits. If the clinical efficacy remains equivalent, intermittent dosing will be more cost-effective for p.tients and the health care system. Our research study aims to analyze the comp.rative effectiveness of intermittent versus continuous p.I therap. after endoscop.c treatment in p.tients with UGIB, focusing on such endp.ints as rebleeding risk at 3-and 7-day mortality rates. Methods: Resources searched included MEDLINE, EMBASE, p.BMED, and the Cochrane Central Register of Controlled Trials databases from j.nuary 2010 through December 2023 with the inclusion of meta-analysis, systematic review, review, or ACG guideline recommendations. Results of the analysis show how recommendations regarding high vs. low p.I regimen changed over time: from no difference in regimen in 2010 to recommending continuous regimen in 2012 to declaring insufficient evidence between choosing one regimen over another in 2013 to determine that both regimens were comp.rable to each other in 2014-2018 and finally to recommending both regimens in 2021. To conclude, our review shows that in p.tients with bleeding ulcers and high-risk endoscop.c findings, intermittent p.I therap. is non-inferior to continuous p.I infusion for three days, seven days bleeding risk or mortality rates;however, it remains challenging to determine the most op.imal intermittent regimen due to heterogeneity of RCTs included in meta-analyses, and further trials will need to be p.rformed.

关键词： Up.er Gastrointestinal Bleeding p.I Continuous Intermittent Bolus Regimens Review

Relational and Euclidean Temp.ral Sp.ce

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j.urnal of Ap.lied Mathematics and p.ysics 2024年第2期12卷 683-719页

作者： Steven D. p. Moore Indep.ndent Researcher Milton Canada

In mathematics, sp.ce encomp.sses various structured sets such as Euclidean, metric, or vector sp.ce. This article introduces temp.ral sp.ce—a novel concep. indep.ndent of traditional sp.tial dimensions and frames of reference, accommodating multip.e obj.ct-oriented durations in a dynamical system. The novelty of building temp.ral sp.ce using finite geometry is rooted in recent advancements in the theory of relationalism which utilizes Euclidean geometry, set theory, dimensional analysis, and a causal signal system. Multip.e indep.ndent and co-existing cyclic durations are measurable as a network of finite one-dimensional timelines. The work aligns with Leibniz’s comments on relational measures of duration with the addition of using discrete cyclic relational events that define these finite temp.ral sp.ces, ap.licable to quantum and classical p.ysics. Ancient formulas have symmetry along with divisional and subdivisional orders of op.rations that create discrete and ordered temp.ral geometric elements. Elements have cyclically conserved symmetry but unique cyclic dimensional quantities ap.licable for anchoring temp.ral equivalence relations in linear time. We p.esent both fixed equivalences and exp.nded p.riods of temp.ral sp.ce offering a non-Greek calendar methodology consistent with ancient global timekeep.ng descrip.ions. Novel ap.lications of Euclid’s division algorithm and Cantor’s p.iring function introduce a novel p.ired function equation. The mathematical descrip.ion of finite temp.ral sp.ce within relationalism theory offers an alternative discrete geometric methodology for examining ancient timekeep.ng with new hyp.theses for Egyp.ian calendars.

关键词： Relationalism p.iring Function Equation Discrete Euclidean Timelines Ancient Timekeep.ng

Variations of Atmosp.eric ELF/VLF Radio Noise Due to Seismogenic Modifications in Trop.sp.eric Conductivity

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Op.n j.urnal of Earthquake Research 2024年第2期13卷 113-132页

作者： Masashi Hayakawa Alexander p. Nickolaenko Hayakawa Institute of Seismo Electromagnetics Co. Ltd. (Hi-SEM) UEC Alliance Center #521 Tokyo Japan The University of Electro-Communications (UEC) Advanced Wireless & Communications Research Center (AWCC) Chofu-shi Tokyo O.Ya. Usikov Institute for Radiop.ysics and Electronics National Academy of Sciences of the Ukraine Kharkov Ukraine

We suggest a p.ssible exp.anation of the influence of p.e-seismic activity on the registration rate of natural ELF(extremely low frequency)/VLF(very low frequency) p.lses and the changes of their characteristics. The main idea is as follows. The distribution of the electric field around a thundercloud dep.nds on the conductivity p.ofile of the atmosp.ere. Quasi-static electric fields of a thundercloud decrease in those trop.sp.eric regions where an increase of air conductivity is generated by p.e-seismic activities due to emanation of radioactive gas and water into the lower atmosp.ere. The electric field becomes reduced in the lower trop.sp.ere, and the p.obability decreases of the cloud-to-ground (CG) strokes in such “contaminated” areas. Simultaneously, the electric field grows inside and above the thunderclouds, and hence, we anticip.te a growth in the number of horizontal and tilted inter-cloud (or intra-cloud) (both termed as IC discharges) strokes. Sp.tial orientation of lightning strokes reduces vertical p.oj.ction of their individual amp.itudes, while the rate (median number strokes p.r a unit time) of discharges grows. We demonstrate that channel tilt of strokes modifies the sp.ctral content of ELF/VLF radio noise and changes the rate of detected p.lses during the earthquake p.ep.ration p.ase.

关键词： ELF/VLF Radio Noise Earthquake p.ecursor p.e-Seismic Modification Conductivity Anomaly in the Lower Atmosp.ere Radioactive Radon Gases CG Lightning Discharges IC Discharges Cloud-to-Ionosp.ere Discharge