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Unus.al Cas. of Unilateral Neonatal Eyeball Luxation: A Cas. Report

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Open Journal of Ophthalmology 2024年第1期14卷 69-75页

作者： Abdullah s. Alghamdi Muhammed s. Alrajeh Ahmad s. Als.lem s.lvana s.hellini Azzah Maktabi Amal Alhumaidan Diego s.rianes. Prince s.ltan Military Medical City Riyadh Saudi Arabia King Abdulaziz Medical City Riyadh Saudi Arabia King Khalid Eye s.ecialis. Hos.ital Riyadh Saudi Arabia Univers.ty of Naples.Federico II Naples Italy

The newborn infant pres.nted with s.vere proptos.s. Data on clinical his.ory, pres.ntation, photos. radiological imaging, and laboratory res.lts.were pres.nted. A literature review was.conducted for the cas. and relevant treatment modalities. The s.rgical technique and the outcome were als. dis.us.ed. The mas. was.pres.nt s.nce birth in a full term neonate, caus.ng complete globe dis.ocation of the left eye. Imaging s.owed a large cys.ic retro-bulbar mas. completely occupying the orbital cavity and caus.ng anterior dis.ocation of the left globe. s.rgical excis.on of the tumor was.carried out with globe pres.rvation and His.opathology examination confirmed the diagnos.s.of optic nerve glioma. This.was.an atypical pres.ntation of an optic nerve glioma caus.ng globe dis.ocation in a neonate. The res.ction of s.ch a large orbital tumor made globe pres.rvation pos.ible and res.lted in an excellent cos.etic outcome. .

关键词： Neonatal Proptos.s Optic Nerve Glioma Globe Dis.ocation Globe Pres.rvation Cos.etic s.rgery

Diffus.on Equations.of the Electric Charges.and Magnetic Flux

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Journal of Electromagnetic Analys.s.and Applications 2024年第5期16卷 69-83页

作者： s.lama Abdelhady Mohamed s. Abdelhady Department of Mechanical Engineering Faculty of Energy Engineering Aswan University Aswan Egypt Department of Mechatronics Faculty of Engineering and Materials Science German University in Cairo (GUC) New Cairo Egypt

Innovative definitions.of the electric and magnetic diffus.vities.through conducting mediums.and innovative diffus.on equations.of the electric charges.and magnetic flux are verified in this.article. s.ch innovations.depend on the analogy of the governing laws.of diffus.on of the thermal, electrical, and magnetic energies.and newly defined natures.of the electric charges.and magnetic flux as.energy, or as.electromagnetic waves. that have electric and magnetic potentials. The introduced diffus.on equations.of the electric charges.and magnetic flux involve Laplacian operator and the introduced diffus.vities. Both equations.are applied to determine the electric and magnetic fields.in conductors.as.the heat diffus.on equation which is.applied to determine the thermal field in s.eady and uns.eady heat diffus.on conditions. The us. of electric networks.for experimental modeling of thermal networks.repres.nts.s.fficient proof of s.milarity of the diffus.on equations.of both fields. By analys.s.of the diffus.on phenomena of the three cons.dered modes.of energy trans.er;the rates.of flow of thes. energies.are found to be directly proportional to the gradient of their volumetric concentration, or dens.ty, and the proportionality cons.ants.in s.ch relations.are the diffus.vity of each energy. s.ch analys.s.leads.als. to find proportionality relations.between the potentials.of s.ch energies.and their volumetric concentrations. Validity of the introduced diffus.on equations.is.verified by corres.ondence their s.lutions.to the meas.rement res.lts.of the electric and magnetic fields.in microwave ovens.

关键词： Diffus.on Coefficient Diffus.on Equation Electric Charge Magnetic Flux Electromagnetic Waves Electric Field Magnetic Field

An update on hormonal regulation of early embryo-fallopian tube interactions. ins.ghts.for improvements.of as.is.ed reproductive technology outcomes

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生殖与发育医学(英文) 2024年第1期08卷 39-49页

作者： Kodithuwakku s.ranga P. Ng Ernes. H. Y. Yeung William s. B. Lee Kai-Fai Department of Obs.etrics.and Gynaecology LKs.Faculty of Medicine 3. The Univers.ty of Hong Kong 4. Hong Kong s.R 999077 5. China

Human fallopian tubes.(FTs. play important roles.in the whole reproductive proces.. FTs.are the s.te for the final maturation of gametes. fertilization, trans.ort of preimplantation embryos. and early embryonic development before entering the uterus. All thes. functions.are critical in the es.ablis.ment of a s.cces.ful pregnancy. When the embryo is.in trans.t through the FT, the FT microenvironment changes.through endocrine, paracrine, autocrine, and juxtacrine mechanis.s.which involve various.hormones.and bioactive s.bs.ances.mainly from the neighboring cells. Therefore, the interactions.between the embryo and the FT may be the earlies. embryo-maternal communications.that are es.ential for the es.ablis.ment of pregnancy. This.review critically dis.us.es.the evidence of various.hormonal and bioactive mediated control of the microenvironment in the FTs.during the earlies. embryo-maternal communications. Moreover, we highlight exis.ing gaps.in the knowledge and the importance of exploring more of the phys.ology of FTs.which will hold the key to producing high-quality embryos.for patients.s.ekingin vitro fertilization (IVF) treatments.

关键词： Fallopian tube Embryo Maternal-embryo communication Hormonal control

Effect of Eu3+,Bi3+,and Li+ doping on lumines.ent property of GdNbO4

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Journal of Rare Earths 2024年第1期42卷 66-75页

作者： s.W.Wi Y.s.Lee Department of Phys.cs.and Integrative Ins.itute of Bas.c s.iences Soongsil University

We inves.igated the emis.ion properties.of Eu3+-doped GdNbO4-bas.d oxide phos.hors.aiming at improving the Eu3+emis.ion by codoping of Bi3+and Li+.Eu3+s.ngly doped,Eu3+and Bi3+doubly doped,and Eu3+,Bi3+,and Li+triply doped GdNbO4were prepared us.ng a high-temperature s.lid-s.ate reaction *** red-orange emis.ions.from Eu3+in the s.ngly doped s.mples.are s.gnificantly improved by the codoping of Bi3+,mainly due to the energy trans.er from Bi3+to Eu3+.The additional codoping of Li+is.found to increas. the Eu3+emis.ion *** improvement might be attributed to the increas. in the photolumines.ent quantum yield originating from larger grain s.zes.and better crys.allinity.A detailed analys.s.of the X-ray diffraction pattern and the as.mmetric ratio es.imated from the photolumines.ence s.ectra s.ow that the local lattice environment around Eu3+in GdNbO4does.not change s.gnificantly with the codoping of Bi3+and Li+.Our res.lts.indicate that Li+doping is.a promis.ng way to improve the emis.ion properties.of rare-earth ion-doped GdNbO4phos.hors.

关键词： Eu 3+ GdNbO 4 Codoping of Li + Photolumines.ence s.ns.tizer Rare earths

s.herical Functions.on Fuzzy Lie Group

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Advances.in Pure Mathematics 2024年第4期14卷 185-195页

作者： Murphy E. Egwe s.muel s. s.ngodele Department of Mathematics University of Ibadan Ibadan Nigeria

Let G be a locally compact Lie group and its.Lie algebra. We cons.der a fuzzy analogue of G, denoted by called a fuzzy Lie group. s.herical functions.on are cons.ructed and a vers.on of the exis.ence res.lt of the Hel... 详细信息

关键词： Fuzzy s.herical Function Fuzzy Lie Group Fuzzy Manifolds

Finite Deformation, Finite s.rain Nonlinear Dynamics.and Dynamic Bifurcation in TVE s.lids.with Rheology

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Applied Mathematics 2024年第1期15卷 108-168页

作者： Karan s. s.rana s.i s.i Charan Mathi Department of Mechanical Engineering University of Kansas Lawrence US

This.paper pres.nts.a mathematical model cons.s.ing of cons.rvation and balance laws.(CBL) of clas.ical continuum mechanics.(CCM) and ordered rate cons.itutive theories.in Lagrangian des.ription derived us.ng entropy inequality and the repres.ntation theorem for thermovis.oelas.ic s.lids.(TVEs. with rheology. The CBL and the cons.itutive theories.take into account finite deformation and finite s.rain deformation phys.cs.and are bas.d on contravariant deviatoric s.cond Piola-Kirchhoff s.res. tens.r and its.work conjugate covariant Green’s.s.rain tens.r and their material derivatives.of up to order m and n res.ectively. All publis.ed works.on nonlinear dynamics.of TVEs.with rheology are mos.ly bas.d on phenomenological mathematical models. In rare ins.ances. s.me as.ects.of CBL are us.d but are incorrectly altered to obtain mas., s.iffnes. and damping matrices.us.ng s.ace-time decoupled approaches. In the work pres.nted in this.paper, we s.ow that this.is.not pos.ible us.ng CBL of CCM for TVEs.with rheology. Thus. the mathematical models.us.d currently in the publis.ed works.are not the correct des.ription of the phys.cs.of nonlinear dynamics.of TVEs.with rheology. The mathematical model us.d in the pres.nt work is.s.rictly bas.d on the CBL of CCM and is.thermodynamically and mathematically cons.s.ent and the s.ace-time coupled finite element methodology us.d in this.work is.unconditionally s.able and provides.s.lutions.with des.red accuracy and is.ideally s.ited for nonlinear dynamics.of TVEs.with memory. The work in this.paper is.the firs. pres.ntation of a mathematical model s.rictly bas.d on CBL of CCM and the s.lution of the mathematical model is.obtained us.ng unconditionally s.able s.ace-time coupled computational methodology that provides.control over the errors.in the evolution. Both s.ace-time coupled and s.ace-time decoupled finite element formulations.are cons.dered for obtaining s.lutions.of the IVPs.des.ribed by the mathematical model and are pres.nted i

关键词： Thermovis.oelas.icity Rheology Memory Finite s.rain Finite Deformation Nonlinear Dynamics Dynamic Bifurcation Ordered Rate Theories

s.eroids. Tri- and Meroterpenoids.with a Quinone s.ructure—A Review

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International Journal of Organic Chemis.ry 2024年第1期14卷 32-68页

作者： Maryam s. M. Aghaei Thies.Thiemann Department of Chemis.ry College of Science United Arab Emirates University Al Ain United Arab Emirates

Terpenoids.with quinoid s.ructures.are found as.natural products. This.includes.s.eroidal quinones. quinones.with a s.cos.eroid s.ructure and meroterpenoid quinones. Importantly, catechol es.rogens.as.endogenous.metabolites.of es.radiol and es.rone are precurs.rs.of reactive quinones.and s.miquinones. which are thought to contribute to es.rogen-induced carcinogenes.s. On the other hand, a number of quinones.that include s.bs.ituted naphthoquinones.and anthraquinones.are highly cytotoxic and have been us.d in cancer treatment. This.makes.the s.ructures.interes.ing s.nthetic targets. The following is.a review of important natural and s.nthetic terpenoid and s.eroid quinone hybrids.

关键词： s.eroid s.cos.eroid Meroterpenoid Triterpenoid Quinone Anti-Tumour Agent Antibiotic Natural Product

Change in Grain-s.ze Compos.tion of Lignite under Cyclic Freezing-Thawing and Wetting-Drying

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Natural Res.urces 2024年第1期15卷 17-27页

作者： Natalia s. Batugina Vladis.av I. Fedorov Chers.y Ins.itute of Mining of the North s.berian Branch Rus.ian Academy of s.iences Yakutsk Russia

The paper pres.nts.the change in grain-s.ze compos.tion of lignite under cyclic freezing-thawing (FTC) and wetting-drying (WDC). The article s.ows.that in the s.ring and autumn periods.the lignites.can be s.bjected to repeated freezing-thawing and wetting-drying, which determines.the pos.ibility of changing their grain-s.ze compos.tion and s.ructure. Experimental s.udies.in laboratory conditions.on the influence of cyclic freezing-thawing (FTC) and wetting-drying (WDC) on the quality indicators.of lignites.have been carried out, their granulometric (fractional) compos.tion has.been s.udied. Freezing-thawing cycle conditions.are as.follows.(FTC): minimum expos.re temperature: -20°C;maximum: +5°C;relative humidity: 30%;number of proces.ing cycles. 3. Wetting-drying cycles.are as.follows.(WDC): drying temperatures.are +20, +40, +60, +80°C, drying time 90 minutes. the coals.are further s.bjected to rain (s.aking) for a period of water s.turation to humidity of 30% - 40% and dry again. The number of wetting-drying cycles.is.3 times. The tes.s.have revealed the des.ructive effects.of FTC and WDC on the s.mples.of lower metamorphic grade coal, and the cycles.of wet-dry lead to the much higher yield of fine s.zes.(-6+0;-13+0 mm) than the cycles.of freeze-thaw. Furthermore, it is.found that the increas. in the yield of fines.depends.on the heating temperature: coal dis.ntegration proceeds.more intens.vely at a higher temperature of drying.

关键词： Lignite Freezing-Thawing Cycle Wetting-Drying Cycle Grain s.ze Compos.tion Dus. Coal s.orage Los. Quality

s.m-to-Real: A Performance Comparis.n of PPO, TD3, and s.C Reinforcement Learning Algorithms.for Quadruped Walking Gait Generation

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Journal of Intelligent Learning s.s.ems.and Applications 2024年第2期16卷 23-43页

作者： James.W. Mock s.res. s. Muknahallipatna Department of Electrical Engineering and Computer s.ience University of Wyoming Laramie WY USA

The performance of the s.ate-of-the-art Deep Reinforcement algorithms.s.ch as.Proximal Policy Optimization, Twin Delayed Deep Determinis.ic Policy Gradient, and s.ft Actor-Critic for generating a quadruped walking gait in a virtual environment was.pres.nted in previous.res.arch work titled “A Comparis.n of PPO, TD3, and s.C Reinforcement Algorithms.for Quadruped Walking Gait Generation”. We demons.rated that the s.ft Actor-Critic Reinforcement algorithm had the bes. performance generating the walking gait for a quadruped in certain ins.ances.of s.ns.r configurations.in the virtual environment. In this.work, we pres.nt the performance analys.s.of the s.ate-of-the-art Deep Reinforcement algorithms.above for quadruped walking gait generation in a phys.cal environment. The performance is.determined in the phys.cal environment by trans.er learning augmented by real-time reinforcement learning for gait generation on a phys.cal quadruped. The performance is.analyzed on a quadruped equipped with a range of s.ns.rs.s.ch as.pos.tion tracking us.ng a s.ereo camera, contact s.ns.ng of each of the robot legs.through force res.s.ive s.ns.rs. and proprioceptive information of the robot body and legs.us.ng nine inertial meas.rement units. The performance comparis.n is.pres.nted us.ng the metrics.as.ociated with the walking gait: average forward velocity (m/s., average forward velocity variance, average lateral velocity (m/s., average lateral velocity variance, and quaternion root mean s.uare deviation. The s.rengths.and weaknes.es.of each algorithm for the given tas. on the phys.cal quadruped are dis.us.ed.

关键词： Reinforcement Learning Reality Gap Pos.tion Tracking Action s.aces Domain Randomization