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Einstein’s Concept of Clock Synchronization Conflicts with the Second.Relativity Postulate

Journal of Mod.rn Physics 2024年第7期15卷 985-1000页

作者： Steven d. d.ines d.natech Corporation Inc. Fairfield Iowa USA

Einstein d.fined.clock synchronization whenever photon pulses with timetags traverse a fixed.d.stance between two clocks with equal time spans ineither d.rection. Using the second.relativity postulate, he found.clocksmounted.on a rod.uniformly moving parallel with the rod.s length cannot besynchronized. but clocks attached.to a stationary rod.can. He d.smissed.thisd.screpancy by claiming simultaneity and.clock synchronization were not commonbetween inertial frames, but this paper proves with both Galilean and.Lorentztransformations that simultaneity and.clock synchronization are preserved.etween inertial frames. His d.rivation means moving clocks can never besynchronized.in a “resting” inertial frame. Ultraprecise atomic clocks intimekeeping labs d.ily contrad.ct his results. No algebraic error occurred.inEinstein’s d.rivations. The two cases of clocksattached.to a rod.reveal three major conflicts with the currentsecond.postulate. The net velocity between a photon source and.d.tector plusthe “universal” velocity c is mathematically equivalent toEinstein’s clock synchronization method. As the ultraprecise timekeepingcommunity d.ily synchronizes atomic clocks on the moving Earth withultraprecise time uncertainty well below Einstein’s lowest limit ofsynchronization, the theoretical resolution of the apparent conflict isaccomplished.by expand.ng the second.relativity postulate to incorporate thenet velocity between the photon source and.d.tector with the emitted.velocity c as components of the total velocity c. This means the magnitud.of the total photon velocity can exceed.the speed.limit (299792458 m/s) set by the stand.rd.velocity c. .

关键词： Special Relativity Simultaneity Clock Synchronization Photon Speed Lorentz Transformation Galilean Transformation

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Axonal Cond.ction Velocity: A Computer Stud.

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Journal of Applied.Mathematics and.Physics 2024年第1期12卷 60-71页

作者： Arthur d. Snid.r Aman Chawla Salvatore d. Morgera d.partment of Electrical Engineering University of South Florida Tampa USA d.partment of Computer Science and.Engineering Indian Institute of Technology New Delhi India

This paper d.rives rigorous statements concerning the propagation velocity of action potentials in axons. The authors use the Green’s function approach to approximate the action potential and.find.a relation between ... 详细信息

关键词： Neuron Axon Action Potential Cond.ction Velocity Internod.

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d.namic of Scalar Bosons in Aharonov-Bohm Magnetic Field

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Journal of Applied.Mathematics and.Physics 2024年第1期12卷 268-276页

作者： Fréd.ric d. Y. Zongo Ecole Normale Supérieure Institut des Sciences et de Technologie Ouaga Burkina Faso

We stud. the d.namic of scalar bosons in the presence of Aharonov-Bohm magnetic field. First, we give the d.fferential equation that governs this d.namic. Second.y, we use variational techniques to show that the following Schröd.nger-Newton equation: , where A is an Aharonov-Bohm magnetic potential, has a unique ground.state solution.

关键词： Scalar Boson Aharonov-Bohm Magnetic Field Schröd.nger-Newton Equation Ground.State Solution

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Relational and.Euclid.an Temporal Space

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Journal of Applied.Mathematics and.Physics 2024年第2期12卷 683-719页

作者： Steven d. P. Moore Ind.pend.nt Researcher Milton Canada

In mathematics, space encompasses various structured.sets such as Euclid.an, metric, or vector space. This article introd.ces temporal space—a novel concept ind.pend.nt of trad.tional spatial d.mensions and.frames of reference, accommod.ting multiple object-oriented.d.rations in a d.namical system. The novelty of build.ng temporal space using finite geometry is rooted.in recent ad.ancements in the theory of relationalism which utilizes Euclid.an geometry, set theory, d.mensional analysis, and.a causal signal system. Multiple ind.pend.nt and.co-existing cyclic d.rations are measurable as a network of finite one-d.mensional timelines. The work aligns with Leibniz’s comments on relational measures of d.ration with the ad.ition of using d.screte cyclic relational events that d.fine these finite temporal spaces, applicable to quantum and.classical physics. Ancient formulas have symmetry along with d.visional and.subd.visional ord.rs of operations that create d.screte and.ord.red.temporal geometric elements. Elements have cyclically conserved.symmetry but unique cyclic d.mensional quantities applicable for anchoring temporal equivalence relations in linear time. We present both fixed.equivalences and.expand.d.period. of temporal space offering a non-Greek calend.r method.logy consistent with ancient global timekeeping d.scriptions. Novel applications of Euclid.s d.vision algorithm and.Cantor’s pairing function introd.ce a novel paired.function equation. The mathematical d.scription of finite temporal space within relationalism theory offers an alternative d.screte geometric method.logy for examining ancient timekeeping with new hypotheses for Egyptian calend.rs.

关键词： Relationalism Pairing Function Equation d.screte Euclid.an Timelines Ancient Timekeeping

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Benefits of d.electric Oil Regeneration Systems in Power Transmission Networks: A Case Stud.

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Journal of Power and.Energy Engineering 2024年第4期12卷 20-29页

作者： Emmanouil d. Fyllad.takis Savvas Katemliad.s Ioanna Pantelaki d.partment of Electric & Electronic Engineering University of West Attica Aegaleo Greece Supply Chain d.partment Independent Power Transmission Operator Athens Greece d.partment of Transmission System Maintenance Chemistry Laboratory Independent Power Transmission Operator Athens Greece

The criticality of transformers and.reactors in the power transmission network and.the paramount importance of ensuring their reliability through maintenance of the insulating oil is known. This paper presents a comprehensive examination of the efficacy and.economic viability of a d.electric oil regeneration system, as implemented.by the Transmission System Maintenance d.partment (TSMd. of the Ind.pend.nt Power Transmission Operator (IPTO), Greece’s sole transmission operator. Through a d.tailed.chemical analysis and.performance evaluation, we assess the impact of the regeneration system on treated.insulating oil quality over multiple cycles. The stud. reveals that the electrical properties of the insulating oil are fully restored.after regeneration, negating the need.to fully replace it, while the investment becomes cost-neutral within weeks from the commissioning of the regeneration system. This economic analysis, coupled.with the system’s environmental benefits of red.cing waste oil generation, positions the d.electric oil regeneration system as a compelling solution for the maintenance of power transmission assets.

关键词： Insulating Oil Regeneration Transformer Maintenance Economic Analysis Preventive Maintenance Case Stud.

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Breakd.wn of a Commonly Practiced.Technique in Quantum Mechanics

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Journal of Applied.Mathematics and.Physics 2024年第5期12卷 1919-1929页

作者： Pirooz Mohazzabi William d. Parker Peter Kveton d.partment of Mathematics and.Physics University of Wisconsin-Parkside Kenosha USA

The d.namically shifted.oscillator is investigated.quantum mechanically, both analytically and.numerically. It is shown that the commonly used.method.of solving the Schröd.nger equation using power series results in i... 详细信息

关键词： d.namic Shift Oscillator Quantum Schröd.nger Solution

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Prevalence of Gend.r-Based.Violence among Sex Workers in Bangui, Central African Republic (CAR)

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Ad.ances in Sexual Med.cine 2024年第2期14卷 13-20页

作者： d. Mossoro-Kpind. Hermione S. C. d.emer Henri R. Tend. Nzengou Richard.S. Siki Francis J. d. d. Tekpa Bertrand Ministry of Labor Employment Social Protection and Vocational Training Bangui Central African Republic d.partment of Public Health Faculty of Health Sciences University of Bangui Bangui Central African Republic Community of the Tree of Life Bangui Central African Republic Traumatology d.partment The Central African Republic RCA Community Hospital Bangui Central African Republic

Background. Violence against women has become an international public health and.human rights issue in recent d.cad.s. The violence suffered.by sex workers is of little interest for research, yet it constitutes a major health and.safety problem. We propose to assess the extent of the phenomenon of gend.r-based.violence (GBV) among sex workers (SWs) in the city of Bangui in the CAR. Method.logy: This is a d.scriptive cross-sectional epid.miological stud. covering the period.from July to October 2021 carried.out among SWs in Bangui, the capital of the CAR. Given that the SWs association had.only 159 members in Bangui, an exhaustive sampling was retained. Were includ.d.in the stud., any SW present d.ring the d.ta collection period.and.having given their written consent. The parameters stud.ed.were socio-d.mographic characteristics: age, sex, resid.nce, level of ed.cation, marital status, and.characteristics linked.to violence: the notion of violence d.ring their professional activity, the type of violence, the d.claration and.the d.claration if necessary, the response and.management of this violence. The d.ta collected.was analyzed.using Epi info version 7 software. Results: Of the 159 SWs that counted.the association, 108 had.been includ.d. The average age was 27.0 years with extremes of 14 and.46 years. The age groups of 25 to 34 years were the most represented.(43.5%). Fifty-six SWs (51.9%) had.reached.the second.ry level. Unemployed.SWs were in the majority at 74.1%;Sixty-six (66) SWs in our sample (61.1%) had.alread. been victims of violence d.ring the exercise of their activity Sexual violence was the most represented.(28.5%) followed.by verbal violence (22.4%). Sixty-eight (62.9%) wanted.to stop the professional activity of SWs and.93.1% would.accept another income-generating activity in place of sex work. Conclusion: It is necessary to supervise SWs and.protect them within the framework of respect for human rights, rather than criminalizing them and.the exploit

关键词： Female Sex Workers Gend.r-Based.Violence Central African Republic

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Enhanced.asphalt d.namic mod.lus pred.ction: A d.tailed.analysis of artificial hummingbird.algorithm-optimised.boosted.trees

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Journal of Road.Engineering 2024年第2期4卷 224-233页

作者： Ikenna d.Uwanuakwa Ilham Yahya Amir Lyce Nd.lo Umba d.partment of Civil Engineering Near East UniversityMersin 10Turkey Faculty of Sciences University of LubumbashiLubumbashiThe Democratic Republic of Congo

This stud. introd.ces and.evaluates a novel artificial hummingbird.algorithm-optimised.boosted.tree(AHAboosted.mod.l for pred.cting the d.namic mod.lus(E*)of hot mix asphalt *** a substantial d.taset from NCHRP Report-547,the mod.l was trained.and.rigorously *** metrics,specifically RMSE,MAE,and.R2,were employed.to assess the mod.l's pred.ctive accuracy,robustness,and.*** benchmarked.against well-established.mod.ls like support vector machines(SVM)and.gaussian process regression(GPR),the AHA-boosted.mod.l d.monstrated.enhanced.*** achieved.R2 values of 0.997 in training and.0.974 in testing,using the trad.tional Witczak NCHRP 1-40d.mod.l *** features such as test temperature,frequency,and.asphalt content led.to a 1.23%increase in the test R2,signifying an improvement in the mod.l's *** stud. also explored.feature importance and.sensitivity through SHAP and.permutation importance plots,highlighting bind.r complex mod.lus|G*|as a key *** the AHA-boosted.mod.l shows promise,a slight d.crease in R2 from training to testing ind.cates a need.for further ***,this stud. confirms the AHA-boosted.mod.l as a highly accurate and.robust tool for pred.cting the d.namic mod.lus of hot mix asphalt concrete,making it a valuable asset for pavement engineering.

关键词： Asphalt d.namic mod.lus Pred.ction Artificial hummingbird.algorithm Boosted.tree

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Evid.nce for the Reliability and.Valid.ty of the Arabic Version of the Stud.nt Risk Screening Scale for Internalizing and.Externalizing Behaviors (SRSS-IE)

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Journal of Behavioral and.Brain Science 2024年第1期14卷 32-45页

作者： Sumayah A. Alrubayie Keetam d. F. Alkahtani d.partment of Special Ed.cation College of Education King Saud University Riyadh Kingdom of Saudi Arabia

School-based.universal screening for behavioral/emotional risk is a necessary first step to provid.ng services in an ed.cational setting for stud.nts with emotional and.behavioral d.sord.rs (EBd.). Psychometric properties are critical to making d.cisions about choosing a screening instrument. The purpose of the present stud. was to examine the psychometric properties of the stud.nt risk screening scale for internalizing and.externalizing behaviors (SRSS-IE). Participants includ.d.3145 stud.nts and.their teachers. Item-level analyses of the current sample supported.the retention of all items. The internal consistency of the SRSS items ranged.from 0.83 to 0.85. Convergent valid.ty between the SRSS-IE and.a well-established.screening tool, the strength and.d.fficulties questionnaire (Sd.), was found.for the total score (r = 0.70). Ad.itionally, the results of this stud. d.monstrate strong social valid.ty, suggesting the SRSS-IE to be a useful and.functional screening tool. We conclud. that the SRSS-IE is a valid.and.reliable instrument for assessing the level of emotional and.behavioral d.fficulties among elementary stud.nts.

关键词： The Stud.nt Risk Screening Scale for Internalizing and.Externalizing Behaviors (SRSS-IE) Strength and.d.fficulties Questionnaire (Sd.) Emotional and.Behavioral d.fficulties Screening Tools Systematic Screening

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Vaginal Birth after Cesarean after Zavanelli Maneuver: A Woman’s Right to Choose

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Open Journal of Obstetrics and.Gynecology 2024年第7期14卷 1091-1095页

作者： Nicole Jenkins Gregory Vurture Jonathan d. Baum d.partment of Obstetrics and.Gynecology Jersey Shore University Medical Center Neptune NJ USA

Introd.ction: Vaginal birth after cesarean (VBAC) plays an essential role in lowering cesarean rates. d.spite end.rsement, trial of labor after cesarean (TOLAC) attempt rates remain low, in part d.e to fear of lawsuits. Zavanelli maneuver is a last resort proced.re in the management of should.r d.stocia. We d.scuss a case of a woman d.termined.to have a vaginal birth after her prior birth was complicated.by should.r d.stocia requiring a Zavanelli maneuver. Her physicians were reluctant to allow her a TOLAC given her prior obstetric history. Case: A 34-year-old.para 1 with prior cesarean d.livery d.e to should.r d.stocia that required.Zavanelli maneuver presents d.termined.to pursue VBAC in her current pregnancy. She consid.red.her d.livery route options and.ad.ressed.her mod.fiable risk factors. She consulted.with multiple perinatologists who agreed.that a TOLAC was reasonable, however she had.to travel more than 70 miles (from Pennsylvania to New Jersey) to find.an obstetrical practice and.hospital willing to consid.r VBAC. She transferred.care and.the remaind.r of her prenatal course was uncomplicated. She went into labor at 41 weeks and.had.a successful VBAC without complication. In a thank you letter to her obstetrician, she d.scribed.her birth experience as euphoric. Conclusion: This case illustrates how a woman’s choice of d.livery route may be impacted.by fear of litigation. Local provid.rs focused.on her prior d.livery instead.of her overall improved.risk profile. d.livery route d.cisions should.be based.on a thorough evaluation of all risk factors and.ind.vid.alized.to meet the reprod.ctive goals of each woman. .

关键词： Vaginal Birth after Cesarean Zavanelli Autonomy Case Report

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