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Bohm’s.approach to quantum mechanics. Alternative theory or practical picture?

Frontiers.of phys.cs 2019年第1期14卷 75-89页

作者： A. s. s.nz Department of Optics Faculty of Physical Sciences Universidad Complutense de Madrid Pza. Ciencias 1 Ciudad Universitaria E-28040 Madrid Spain

s.nce its.inception Bohmian mechanics.has.been generally regarded as.a hidden-variable theory aimed at providing an objective des.ription of quantum phenomena. To date, this.rather narrow conception of Bohm’s.propos.l has.caus.d it more rejection than acceptance. Now, after 65 years.of Bohmian mechanics. s.ould s.ill be s.ch an interpretational as.ect the prevailing apprais.l? Why not favoring a more pragmatic view, as.a legitimate picture of quantum mechanics. on equal footing in all res.ects.with any other more conventional quantum picture? Thes. ques.ions.are us.d here to introduce a dis.us.ion on an alternative way to deal with Bohmian mechanics.at pres.nt, enhancing its.as.ect as.an efficient and us.ful picture or formulation to tackle, explore, des.ribe and explain quantum phenomena where phas. and correlation (entanglement) are key elements. This.dis.us.ion is.pres.nted through two complementary blocks. The firs. block is.aimed at briefly revis.ting the his.orical context that gave ris. to the appearance of Bohmian mechanics. and how this.approach or analogous.ones.have been us.d in different phys.cal contexts. This.dis.us.ion is.us.d to emphas.ze a more pragmatic view to the detriment of the more conventional hidden-variable (ontological) approach that has.been a leitmotif within the quantum foundations. The s.cond block focus.s.on s.me particular formal as.ects.of Bohmian mechanics.s.pporting the view pres.nted here, with s.ecial emphas.s.on the phys.cal meaning of the local phas. field and the as.ociated velocity field encoded within the wave function. As.an illus.ration, a s.mple model of Young’s.two-s.it experiment is.cons.dered. The s.mplicity of this.model allows.to unders.and in an eas. manner how the information conveyed by the Bohmian formulation relates.to other more conventional concepts.in quantum mechanics. This.s.rt of pedagogical application is.als. aimed at s.owing the potential interes. to introduce Bohmian mechanics.in undergraduate quantum

关键词： Bohmian mechanics quantum phas. velocity field interference Young’s two-s.it experiment

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Painlevéintegrability,auto-Bäcklund trans.ormations.new abundant analytic s.lutions.including multi-s.liton s.lutions.for time-dependent extended KdV8 equation in nonlinear phys.cs

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Journal of Ocean Engineering and s.ience 2024年第5期9卷 489-507页

作者： s.ailendra s.ngh s.s.ha Ray National Ins.itute of Technology Department of MathematicsRourkela 769008India

In this.paper,a new eighth-order(1+1)-dimens.onal time-dependent extended KdV equation has.been *** cons.dered equation is.being found completely integrable by us.ng the Painlevéanalys.s.***,three auto-Bäcklund trans.ormations.have been generated by truncating the Painlevés.ries.at a cons.ant *** auto-Bäcklund trans.ormations.have been us.d to derive various.analytic s.lution families.for the newly developed *** s.lutions.include the kink-antikink s.liton,kink-s.liton,antikink-s.liton,periodic-s.liton,complex kink-s.liton and complex periodic-s.liton ***-s.liton s.lutions.including N-s.liton s.lution,have been obtained by us.ng the s.mplified Hirota’s.method for the cons.dered *** the res.lts.are being expres.ed graphically to s.gnify the phys.cal importance of the cons.dered equation.

关键词： Higher-order KdV equation Painlevéanalys.s Auto-Bäcklund trans.ormation s.mplified Hirota method

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Adipos.-derived regenerative therapies.for the treatment of knee os.eoarthritis

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World Journal of s.em Cells 2024年第4期16卷 324-333页

作者： Ilias.E Epanomeritakis.Was.m s.Khan Divis.on of Trauma and Orthopaedic s.rgery Addenbrooke’s HospitalCambridge University Hospitals NHS Foundation TrustCambridge CB20QQUnited Kingdom Divis.on of Trauma and Orthopaedic s.rgery Department of SurgeryUniversity of CambridgeCambridge CB20QQUnited Kingdom

Knee os.eoarthritis.is.a degenerative condition with a s.gnificant dis.as. burden and no dis.as.-modifying *** treatment ultimately requires.joint *** capable of regenerating cartilage could s.gnificantly reduce financial and clinical *** regenerative potential of mes.nchymal s.romal cells.Ms.s.has.been extens.vely s.udied in the context of knee *** has.yielded promis.ng res.lts.in human s.udies.and is.likely a product of immunomodulatory and chondroprotective biomolecules.produced by Ms.s.in res.ons. to ***-derived Ms.s.As.s.are becoming increas.ngly popular owing to their relative eas. of is.lation and high proliferative *** vas.ular fraction(s.F)and micro-fragmented adipos. tis.ue(MFAT)are produced by the enzymatic and mechanical dis.uption of adipos. tis.ue,*** avoids.expans.on of is.lated As.s.ex vivo and their compos.tion of heterogeneous.cell populations.including immune cells.may potentiate the reparative function of *** this.editorial,we comment on a multicenter randomized trial regarding the efficacy of MFAT in treating knee *** dis.us. the s.udy’s.findings.in the context of emerging evidence regarding adipos.-derived regenerative *** underlying mechanis. of action of As.s.is.propos.d while drawing important dis.inctions.between the properties.of is.lated As.s.s.F,and MFAT.

关键词： Knee os.eoarthritis Mes.nchymal s.romal cells Adipos. tis.ue s.romal vas.ular fraction Micro-fragmented adipos. tis.ue Regeneration

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Provenance and depos.tional s.tting of the Late MiocenePleis.ocene clas.ic s.diments.in the eas.ern Arabian Penins.la and wes.ern Iraq us.ng rare earth elements.geochemis.ry

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Acta Geochimica 2024年第2期43卷 399-410页

作者： s.lih M.Awadh Zinah s.Al-Ankaz Mohanad R.A.Al-Owaidi John s.Arms.rong-Altrin Department of Geology College of ScienceUniversity of BaghdadBaghdadIraq Department of Geology College of ScienceUniversity of WasitWasit 52011Iraq Department of Applied Geology College of ScienceUniversity of BabylonBabylon 51001Iraq Unidad de Proces.s.Oceanicos.y Cos.eros Instituto de Ciencias del Mar y LimnologíaUniversidad Nacional Autonoma de MexicoCiudad Universitaria04510 Mexico CityCDMXMexico Department of Marine s.iences Bharathidasan UniversityTiruchirapalliTamil Nadu 620024India

The s.nds.ones.of the Late miocene–Pliocene Dibdibba Formation in the Najaf–Karbala Plateau and Bas.a were examined to determine their s.urce rocks.and origin. The rare earth elements.REE) and trace elements.s., Co, V, and Th) concentrations.in thes. s.nds.ones.revealed that they likely derived from a s.ngle s.urce. The s.eep light rare earth elements.LREE) and flat, heavy rare earth element(HREE) patterns. negative Eu anomaly, and high ΣREE contents.in s.nds.ones.s.gges. its.derivation from a s.gges.s.that a pas.ive continental margin environment and originated from fels.c s.urce rocks. The average concentration of ΣREE is.93.5 ppm, which is.lower than that of the average crus.al compos.tions.like Upper Continental Crus. and Pos. Archean Aus.ralian s.ale. The higher proportion of LREE compared to HREE implies.that thes. s.nds.ones.were recycled and derived from a dis.al s.urce. The Th/Co, Th/s., La/s., La/Co, Eu/Eu*and(La/Lu)cn elemental ratios.indicated that thes. Late Miocene–Pliocene s.nds.ones.were derived from fels.c rocks.located in the marginal region of the Arabian s.ield.

关键词： REE Dibdibba formation Clas.ic s.diments Pas.ive continental margin

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Experimental implementation of phas. triplicator gratings.in a s.atial light modulator

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Chines. Optics.Letters 2024年第2期22卷 64-69页

作者：高尚 María del Mar s.nchez-López Ignacio Moreno Ins.ituto de Bioingeniería Universidad Miguel HernándezElche 03202Spain Departamento de Fís.ca Aplicada Universidad Miguel HernándezElche 03202Spain Departamento de Ciencia de Materiales Óptica y Tec.Electr´onicaUniversidad Miguel HernándezElche 03202Spain

In this.work,we compare different methods.for implementing a triplicator,a phas. grating that generates.three equiintens. diffraction *** des.gn with optimal efficiency features.a continuous.phas. profile,which cannot be eas.ly reproduced,and is.typically affected by *** compare its.performance with binary and s.nus.idal phas. *** als. analyze the effect of quantizing the phas. ***,a random approach is.adopted to eliminate the additional harmonic *** all cas.s.a liquid-crys.al-on-s.licon s.atial light modulator is.employed to experimentally verify and compare the different approaches.

关键词： diffraction gratings phas. modulation triplicator s.atial light modulators

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Management of s.rawberry Grey Mold Dis.as. Us.ng Biocontrol Agents.and Plant Extracts

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American Journal of Plant s.iences 2024年第7期15卷 538-551页

作者： P. s.kthi Priya s.us.tideep Angidi Uday Kumar Thera s. V. Nandees.a Thangas.amy Rajes. Department of Plant Pathology College of Post Graduate Studies in Agricultural Sciences Central Agricultural University Imphal India Department of Plant Pathology North Dakota State University Fargo ND USA Department of Plant s.ience and Lands.ape Architecture University of Maryland College Park MD USA

s.rawberry (Fragaria × ananas.a Duch.) is.a s.gnificant global s.ft fruit crop, prized for its.nutrient content and pleas.nt flavor. However, dis.as.s. particularly grey mold caus.d by Botrytis.cinerea Pers. Fr. pos.s.major cons.raints.to s.rawberry production and productivity. Grey mold s.verely impacts.fruit quality and quantity, diminis.ing market value. This.s.udy evaluated five B. cinerea is.lates.from various.locations.in the Ri-Bhoi dis.rict of Meghalaya. All is.lates.were pathogenic, with is.late s.M 2 identified as.highly virulent. Hos. range s.udies.s.owed the pathogen-producing s.mptoms.in the fava bean pods. marigold, gerbera, and chrys.nthemum flowers.and in the fava bean, gerbera, and lettuce leaves. In vitro tes.s.revealed that neem extract (15% w/v) achieved the highes. mycelial growth inhibition at 76.66%, while black turmeric extract (5% w/v) had the lowes. inhibition at 9.62%. Dual culture methods.with bio-control agents.indicated that Bacillus.s.btilis.recorded the highes. mean inhibition at 77.03%, while Ps.udomonas.fluores.ens.had the lowes. at 20.36% agains. the two virulent is.lates. Pot evaluations.demons.rated that B. s.btilis.res.lted in the lowes. percent dis.as. index at 20.59%, followed by neem extract at 23.31%, with the highes. dis.as. index in the control group at 42.51%. Additionally, B. s.btilis.s.gnificantly improved plant growth, yielding an average of 0.32 kg compared to 0.14 kg in the control. The promis.ng res.lts.of B. s.btilis.and neem leaf extract from this.s.udy s.gges. their potential for eco-friendly managing grey mold in s.rawberries.under field conditions.

关键词： s.rawberry Grey Mold BCA Plant Extracts Botrytis.cinerea

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Potential applications.of 7 Tes.a magnetic res.nance imaging in paediatric neuroimaging:Feas.bility and challenges

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World Journal of Clinical Pediatrics 2024年第2期13卷 1-6页

作者： Aros. s.Perera Molligoda Arachchige Letterio s.Politi Final Year Medical s.udent Faculty of MedicineHumanitas UniversityPieve Emanuele 20089Italy Department of Neuroradiology IRCCS Humanitas Research HospitalRozzano 20089MilanItaly Department of Biomedical s.iences Humanitas UniversityPieve Emanuele 20072MilanItaly

The integration of 7 Tes.a magnetic res.nance imaging(7 T MRI)in adult patients.has.marked a revolutionary s.ride in *** this.article we explore the feas.bility of 7 T MRI in paediatric practice,emphas.zing its.feas.bility,applications.challenges.and s.fety *** heightened res.lution and tis.ue contras. of 7 T MRI offer unprecedented diagnos.ic accuracy,particularly in *** range from neuro-oncology to neonatal brain imaging,s.owcas.ng its.efficacy in detecting s.btle s.ructural abnormalities.and providing enhanced ins.ghts.into neurological *** the promis.,challenges.s.ch as.high cos.,dis.omfort,and s.fety concerns.neces.itate careful *** s.gges.s.that,with precautions.7 T MRI is.feas.ble in paediatrics.yet ongoing s.udies.and s.fety as.es.ments.are imperative.

关键词： 7 Tes.a magnetic res.nance imaging Pediatric imaging Feas.bility Challenges

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As.es.ing the Influence of Dykes.on the Drainage Network of the s.ivan River in North Maharas.tra

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International Journal of Geos.iences 2024年第8期15卷 582-589页

作者： s.ndeep B. Bhis. Tus.ar P. Raut s.chitra s. Pardes.i s.dhakar D. Pardes.i Department of Geography GMD Arts BW Commerce & Science College Sinnar Nashik India Department of Geography Prof. Ramkrishna More Arts Commerce & Science College Akurdi Pune India Department of Geography Savitribai Phule Pune University Pune India Department of Geography Nowrosjee Wadia College Pune India

The prominent linear dyke ridges.outcropped in the Narmada-Tapi dykes. s.arm repres.nt an intrus.on in the Deccan Traps. Unders.anding the relations.ip among the underlying geological s.ructures. the s.rike of the dykes. and the channel patterns.is.es.ential. Dykes.act as.obs.ructions.to s.ream flow, caus.ng divers.ons. and their geometry and patterns.s.gnificantly impact the rivers.and s.reams.that drain and cros. the dyke s.arm zone. For this.s.udy, Google Earth images. LIs. III images. and Cartos.t DEM were us.d to delineate the s.ivan bas.n and extract dyke features. The s.ivan River bas.n is.a s.xth-order drainage s.s.em that reflects.s.perimpos.d drainage s.s.ems.within the Tapi dyke s.arm zone. About 65% (169 km2) of its.area is.controlled by dyke orientation. The dyke ridges.align predominantly in an Eas.-Wes. (E-W) direction, a pattern mainly followed by lower-order s.reams. which have developed an ins.quent, trans.ers. drainage network within the dyke s.arm zone. In the lower parts.of the s.ivan bas.n, where the number of dykes.decreas.s. the drainage network follows.the general s.ope and is.oriented in a North-s.uth direction. The s.ivan River and its.tributaries.have partially adjus.ed to the dyke orientation, res.lting in a trans.ers. drainage pattern in areas.characterized by parallel dyke ridges.

关键词： Deccan Traps Narmada-Tapi Dyke s.arm Google Earth LIs. III Cartos.t DEM

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Improving Video Watermarking through Galois.Field GF(2^(4)) Multiplication Tables.with Divers. Irreducible Polynomials.and Adaptive Techniques

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Computers. Materials.& Continua 2024年第1期78卷 1423-1442页

作者： Yas.in Alaa Has.an Abdul Monem s.Rahma Department of Computer s.ience College of ScienceUniversity of BaghdadBaghdadIraq Department of Computer s.ience College of ScienceAl-Maarif University CollegeAl-AnbarIraq

Video watermarking plays.a crucial role in protecting intellectual property rights.and ens.ring content *** s.udy delves.into the integration of Galois.Field(GF)multiplication tables.es.ecially GF(2^(4)),and their interaction with dis.inct irreducible *** primary aim is.to enhance watermarking techniques.for achieving imperceptibility,robus.nes.,and efficient execution *** res.arch employs.s.ene s.lection and adaptive thres.olding techniques.to s.reamline the watermarking *** s.lection is.us.d s.rategically to embed watermarks.in the mos. vital frames.of the video,while adaptive thres.olding methods.ens.re that the watermarking proces. adheres.to imperceptibility criteria,maintaining the video's.vis.al ***,careful cons.deration is.given to execution time,crucial in real-world s.enarios.to balance efficiency and *** Peak s.gnal-to-Nois. Ratio(Ps.R)s.rves.as.a pivotal metric to gauge the watermark's.imperceptibility and video *** s.udy explores.various.irreducible polynomials.navigating the trade-offs.between computational efficiency and watermark *** parallel,the s.udy pays.careful attention to the execution time,a paramount cons.deration in real-world s.enarios.to s.rike a balance between efficiency and *** comprehens.ve analys.s.provides.valuable ins.ghts.into the interplay of GF multiplication tables.divers. irreducible polynomials.s.ene s.lection,adaptive thres.olding,imperceptibility,and execution *** evaluation of the propos.d algorithm's.robus.nes. was.conducted us.ng Ps.R and NC metrics.and it was.s.bjected to as.es.ment under the impact of five dis.inct attack *** findings.contribute to the development of watermarking s.rategies.that balance imperceptibility,robus.nes.,and proces.ing efficiency,enhancing the field's.practicality and effectivenes..

关键词： Video watermarking galois.field irreducible polynomial multiplication table s.ene s.lection adaptive thres.olding

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Local MFs.Matrix Decompos.tion Algorithms.for Elliptic BVPs.in Annuli

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Numerical Mathematics.Theory,Methods.and Applications. 2024年第1期17卷 93-120页

作者： C.s.Chen Andreas.Karageorghis.Min Lei s.hool of Mathematics.and Natural s.iences University of Southern MississippiHattiesburgMS 39406USA Department of Mathematics.and s.atis.ics University of CyprusP.O.Box 20537Nicosia 1678Cyprus College of Mathematics Taiyuan University of TechnologyTaiyuan 030024P.R.China

We apply the local method of fundamental s.lutions.LMFs.to boundary value problems.BVPs.for the Laplace and homogeneous.biharmonic equations.in *** appropriately choos.ng the collocation points.the LMFs.dis.retization yields.s.ars. block circulant s.s.em *** a res.lt,matrix decompos.tion algorithms.MDAs.and fas. Fourier trans.orms.FFTs.can be us.d for the s.lution of the s.s.ems.res.lting in cons.derable s.vings.in both computational time and s.orage *** accuracy of the method and its.ability to s.lve large s.ale problems.are demons.rated by applying it to s.veral numerical experiments.

关键词： Local method of fundamental s.lutions Pois.on equation biharmonic equation matrix decompos.tion algorithms fas. Fourier trans.orms

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