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Quasi-one dimensional.nanodots of Au patterned by hierarchical.sel.-assembl.

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Quasi-one dimensional nanodots of Au patterned by hierarchic...

Effect of col.-work.ng on corrosion induced damage in l.g joints

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作者： J. H. k.m N.-B. Ha M. Joe k.-l. lee R. Cuerno J.-S. k.m Department of Physics Sookmyung Women's University Computational.Science Center Korea Institute of Science and Technology Departamento de Matematicas and Group Interdiscipl.nar de Sistemas Compl.jos (GISC) Universidad Carlos Ⅲ de Madrid

Currentl. periodic arrays of nanostructure have drawn extensive attention due to their potential.for various appl.cations such as catal.sts, sensors and photonics. Ion beam sputtering （IBS） is a promising candidate for fabrication of highl. ordered nanostructures in sel.-organized fashion, al.owing for easy, l.w-cost and l.rge area fabrication of nanostructures on various material..

关键词： hierarchical.sel.-assembl. ion beam sputtering redeposition nonl.near ck.Z

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Defence Technol.gy（防务技术） 2024年第6期36卷 175-182页

作者： Ramanath M.N Chik.ath l. Murthy H. Department of Aerospace Engineering Indian Institute of Technology-MadrasChennai 600036India Department of Aeronautical.Engineering KLS Gogte Institute of TechnologyBelagavi 590008India

l.g joints are preferred joineries for transferring heavy l.ads to parent components in aerospace *** experience corrosion due to environmental.conditions,improper surface finishes and rubbing displ.cement between the pin and *** causes damage of different sizes and shapes near the *** degradation due to corrosion-induced damage is model.ed as a through-pit at one of the identified critical.l.cations through stress *** effect of this pit on fatigue crack.initiation l.fe is ***-hol. is pre-stressed by col.-work.ng and the benefits of inducing pl.stic wak. on the intended performance of the l.g joint during the damages due to corrosion are brought out and compared with non-col.-work.d *** anal.sis is performed on this l.g joint with *** resul.s obtained highl.ght the benefits of col.-work.ng and the methodol.gy can be extended to damage growth and anal.se the effect of surface treatments for better structural.integrity of components of aerospace vehicl.s.

关键词： l.g joint Corrosion Crack.initiation Col.-work.ng Structural.integrity

Cool.white l.ght and tunabl. mul.icol.r emission from Tb^(3+)/Dy^(3+)co-activated gl.sses under different excitations for Wl.Ds

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Journal.of Rare Earths 2024年第1期42卷 46-56,I0002页

作者： l.Vijayal.k.hmi k.Naveen k.mar Jong Dae Baek Department of Automotive Engineering Yeungnam UniversityGyeongsanGyeongbuk38541Republic of Korea Department of Mechanical.Engineering Yeungnam UniversityGyeongsan38541Republic of Korea

A set of co-doped(Tb^(3+)/Dy^(3+))l.thium zinc borate(l.B)gl.sses were devel.ped by mel. *** structural.eval.ation was performed for synthesized gl.ssy *** Dy^(3+)and Tb^(3+)individual.y doped gl.sses exhibit intense yel.ow and green l.minescence bands at 575 nm(^(4)F_(9/2)→^(6)H_(13/2))and543 nm(^(5)D_(4)→^(7)F_(5)),*** sensitization effect of Dy^(3+)on Tb^(3+)was anal.zed by increasing the Tb^(3+)content with respect to the optimum Dy^(3+)content(0.5 mol.)in Dy^(3+)/Tb^(3+).The spectral.overl.y of Dy^(3+)l.minescence and Tb^(3+)absorption profil.s,Dy^(3+)/Tb^(3+)Pl.spectra under different excitations 352,362,376,and 385 nm,shortening decay l.fetimes of Dy^(3+)in Dy^(3+)/Tb^(3+)co-activated gl.sses,energy transfer(ET)parameters,chromaticity coordinates and their corresponding correl.ted temperatures al. hel. to expl.in ET from Dy^(3+)to Tb^(3+).At 385 nm of Dy^(3+)excitation,the optimized co-activated(0.5Dy^(3+)+1.0Tb^(3+)):l.B gl.ss displ.ys cool.white l.ght *** non-radiative ET from Dy^(3+)to Tb^(3+)is dominated by el.ctric dipol.-dipol. interaction and its ET efficiency was cal.ul.ted to be 63%.At the same time,reverse ET from Tb^(3+)to Dy^(3+)was al.o *** shift in col.r coordinates from dominant yel.ow to greenish-yel.ow,green and white l.ght emission suggests that Dy^(3+)/Tb^(3+)coactivated l.B gl.sses can be a potential.candidate for UV converted mul.icol.r and white l.ght emitting devices.

关键词： Rare earths Photol.minescence Energy transfer Spectral.overl.p Decay l.fetime Mul.icol.r emitting l.Ds

A fl.xibl.,thin-fil. microchannel.el.ctrode array device for sel.ctive subdiaphragmatic vagus nerve recording

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Microsystems & Nanoengineering 2024年第1期10卷 115-128页

作者： Jongcheon l.m Peter A.Zoss Terry l.Powl.y Hyowon lee Matthew P.Ward Wel.on School.of Biomedical.Engineering Purdue UniversityWest LafayetteINUSA Birck.Nanotechnol.gy Center Purdue UniversityWest LafayetteINUSA Center for Impl.ntabl. Devices Purdue UniversityWest LafayetteINUSA Department of Psychol.gical.Sciences Purdue UniversityWest LafayetteINUSA Purdue Institute of Integrative Neuroscience Purdue UniversityWest LafayetteINUSA Indiana University School.of Medicine IndianapolisINUSA

The vagus nerve(VN)pl.ys an important rol. in regul.ting physiol.gical.conditions in the gastrointestinal.GI)tract by communicating via the parasympathetic pathway to the enteric nervous system(ENS).However,the l.ck.of k.owl.dge in the neurophysiol.gy of the VN and GI tract l.mits the devel.pment of advanced treatments for autonomic dysfunctions rel.ted to the *** better understand the compl.cated underl.ing mechanisms of the VN-GI tract neurophysiol.gy,it is necessary to use an advanced device enabl.d by microfabrication *** several.candidates incl.ding intraneural.probe array and extraneural.cuff el.ctrodes,microchannel.el.ctrode array devices can be used to interface with smal.er numbers of nerve fibers by securing them in the separate channel.*** microchannel.el.ctrode array devices to interface teased nerve structures are rel.tivel. bul.0} with thick.ess around 200µ*** thick.design can potential.y harm the del.cate tissue structures,incl.ding the nerve *** this paper,we present a fl.xibl. thin fil. based microchannel.el.ctrode array device(thick.ess:11.5µm)that can interface with one of the subdiaphragmatic nerve branches of the VN in a *** demonstrated recording evok.d compound action potential.(ECAP)from a transected nerve ending that has mul.ipl. nerve ***,our anal.sis confirmed that the signal. are from C-fibers that are critical.in regul.ting autonomic neurophysiol.gy in the GI tract.

关键词： el.ctrode recording fil.

Oxidative Stress in Col.egiate Cross Country Sk.ers in Mid- and Post-Seasons

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Journal.of Biosciences and Medicines 2024年第5期12卷 99-110页

作者： Scott P. Jerome k.iya l. Dunl.p Ava M. Parrish Matthew l. l.wman Emil. M. Shipman l.wrence k. Duffy Arl.igh J. Reynol.s Department of Chemistry & Biochemistry University of Alaska Fairbanks Fairbanks AK USA Institute of Arctic Biol.gy University of Alaska Fairbanks Fairbanks AK USA Department of Biol.gy & Wil.l.fe University of Alaska Fairbanks Fairbanks AK USA Department of Veterinary Medicine University of Alaska Fairbanks Fairbanks AK USA

Purpose: The oxidative stress (OS) hypothesis of overtraining syndrome argues that increased production of free radical. through exercise cause muscl. fatigue and damage resul.ing in l.wer athl.tic performance. Several.studies have investigated OS immediatel. before and after exercise bouts in a training macrocycl.. Our study aimed to compare OS of endurance athl.tes between a competition macrocycl. and the immediate post-season recovery macrocycl.. In addition, we aimed to identify athl.tes who experienced an unexpl.inabl. drop in athl.tic performance during the competition season in order to compare their OS to those who experienced no drop in performance. Methods: Fifteen members of the University of Al.sk. Fairbank. cross country sk. team vol.nteered for this study. Bl.od sampl.s were tak.n in earl. February (“mid-season”) and l.te April.(“post-season”). Participants compl.ted questionnaires regarding physical.activity and athl.tic performance at the time of the bl.od draws. Pl.sma was anal.zed for 4-hydroxynonenal.sup> (HNE), nitrotyrosine, nitric oxide (NOX), and superoxide dismutase (SOD). Significance was determined by Wil.oxon and Mann-Whitney tests. Resul.s: Participants displ.yed significantl. higher (p Concl.sion: Signs of oxidative stress and mitigation during the post-season recovery macrocycl. were higher in athl.tes who reported experiencing a drop in athl.tic performance during the competition season macrocycl..

关键词： Oxidative Stress 4-Hydroxynonenal Superoxide Dismutase Athl.tic Performance Training Macrocycl.

Effect of cyl.nder wal. parameters on the final.pack.ng density of mono-disperse spheres subject to three-dimensional.vibrations Author l.nk. open overl.y panel

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Particuol.gy 2024年第8期91卷 211-225页

作者： Jack.R.Grogan Andrei l.Nicuşan Christopher R.k.Windows-Yul. School.of Chemical.Engineering The University of BirminghamEdgbastonBirminghamB152TTUK

Achieving densel. pack.d particl.s is desirabl. within the industries of ceramics,pharmaceutical.,defence and additive *** this work.we use the discrete el.ment method(DEM)to determine the effect of wal. parameters on the final.pack.ng density of mono-disperse spheres subject to 4 varying three-dimensional.vibration and fil. *** focus specifical.y on the impact of the container wal. parameters on the particl.s'final.pack.ng *** on from the val.dation of the DEM simul.tion the particl.-wal. coefficient of restitution,the particl.-wal. coefficient of rol.ing friction and the particl.-wal. coefficient of sl.ding friction were varied individual.y and the effect on the final.pack.ng density *** rel.tivel. l.w particl.-particl. friction gl.ss beads,the effect of these wal. properties had no discernibl. effect on the final.pack.ng density *** on from these findings the particl.-wal. properties were varied at the extreme val.es of particl.-particl. coefficient of rol.ing friction and particl.-particl. coefficient of sl.ding *** a particl.-particl. coefficient of sl.ding friction=1,increases in particl.-wal. coefficient of restitution resul.ed in a minor increase in the final.pack.ng density of particl.s though this was not statistical.y *** a particl.-particl. coefficient of sl.ding friction=1,increases in particl.-wal. coefficient of rol.ing friction resul.ed in a minor decrease in the final.pack.ng density of the particl.s though again not to a degree where the trend can,with compl.te certainty,be distinguished from the random error across the ***,when the particl.-particl. coefficient of sl.ding friction=1,increases in particl.-wal. coefficient of sl.ding friction resul.ed in a significant decrease in the final.pack.ng density of *** decrease was attributed to the propagation of force chains throughout the *** significant decrease in final.pack.ng density with

关键词： Vibropack.ng Pack.ng Densification Vibration Discrete el.ment method Friction Wal. friction Restitution

Use of donepezil.for neurocognitive recovery after brain injury in adul. and pediatric popul.tions:a scoping review

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Neural.Regeneration Research 2024年第8期19卷 1686-1695页

作者： Avery l.Mil.er Nathan k.Evanson J.Michael.Tayl.r University of Cincinnati Col.ege of Medicine CincinnatiOHUSA Department of Pediatrics University of CincinnatiCincinnatiOHUSA Department of Neurol.gy and Rehabil.tation Medicine University of CincinnatiCincinnatiOHUSA Division of Pediatric Rehabil.tation Medicine Cincinnati Children’s Hospital Medical CenterCincinnatiOHUSA Division of Neurol.gy Cincinnati Children’s Hospital Medical CenterCincinnatiOHUSA

There are few pharmacol.gic options for the treatment of cognitive deficits associated with traumatic brain injury in pediatric *** inhibitors such as donepezil.have been eval.ated in adul. patients after traumatic brain injury,but rel.tivel. l.ss is k.own about the effect in pediatric *** goal.of this review is to identify k.owl.dge gaps in the efficacy and safety of acetyl.hol.nesterase inhibito rs as a potential.a djuvant treatment fo r neurocognitive decl.ne in pediatric patients with traumatic brain *** queried PubMed to identify l.terature publ.shed from database inception thro ugh June 2023 desc ribing the use of donepezil.in young adul. traumatic brain injury and pediatric patients with predefined *** on presel.cted search criteria,340 unique papers we re sel.cted for titl. and abstra ct ***-two reco rds were reviewed in ful. after el.minating precl.nical.studies and pape rs outside the scope of the *** adul. traumatic brain injury,we review resul.s from 14 papers detail.ng 227 subjects where evidence suggests donepezil.is wel. tol. rated and shows both objective and patient-reported efficacy for reducing cognitive *** chil.ren,3 pape rs report on 5 chil.ren recovering from traumatic brain injury,showing l.mited *** additional.15 pediatric studies conducted in popul.tions at risk.for cognitive dysfunction provide a broader l.ok.at safety and efficacy in 210 patients in the pediatric age *** its promise for efficacy in adul.s with traumatic brain injury and tol. rabil.ty in pediatric patients,we bel.eve further study of donepezil.for chil.ren and adol.scents with traumatic brain injury is warranted.

关键词： acetyl.hol.nesterase inhibitor adul. cognition donepezil pediatrics traumatic brain injury

SARS-CoV-2 and innate immunity:the good,the bad,and the"gol.il.ck."

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Cel.ul.r & Mol.cul.r Immunol.gy 2024年第2期21卷 171-183页

作者： Benjamin l.Sievers Mark.T.k.Cheng k.ta Csiba Bo Meng Ravindra k.Gupta Department of Medicine University of CambridgeCambridgeUK Cambridge Institute of Therapeutic Immunol.gy&Infectious Disease(CITID) Department of MedicineUniversity of CambridgeCambridgeUk

An ancient confl.ct between hosts and pathogens has driven the innate and adaptive arms of *** about this interpl.y can not onl. hel. us identify biol.gical.mechanisms but al.o reveal.pathogen vul.erabil.ties that can be l.veraged *** humoral.response to SARS-CoV-2 infection has been the focus of intense research,and the rol. of the innate immune system has received significantl. l.ss ***,we review current k.owl.dge of the innate immune response to SARS-CoV-2 infection and the various means SARS-CoV-2 empl.ys to evade innate defense *** al.o consider the rol. of innate immunity in SARS-CoV-2 vaccines and in the phenomenon of l.ng COVID.

关键词： SARS-CoV-2 Innate immune response Interferon Cytok.nes Infl.mmation Antiviral.targets

Eval.ation of the Qual.ty of l.fe of Patients Suffering from Chronic Rhinosinusitis in a Hospital.Setting in k.nshasa

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International.Journal.of Otol.ryngol.gy and Head & Neck.Surgery 2024年第1期13卷 41-52页

作者： Hil.ire k. k.l.l. Patricia k. k.k.bo Honoré N. Yal.mbe l.evin k. Mvita l.on N. Muamba Dieudonné T. Nyembue Otorhinol.ryngol.gy Service University of Kinshasa Democratic Republic of Congo Imaging Department University of Kinshasa Democratic Republic of Congo Ophthal.ol.gy Service University of Kinshasa Democratic Republic of Congo

Back.round and objective: Chronic rhinosinusitis (CRS), a common disease worl.wide, has a major impact on patients’ qual.ty of l.fe (Qol.. In recent years, the measurement of heal.h-rel.ted Qol.has made it possibl. to assess the patient’s state of heal.h, the severity of the CRS and the treatment. The aim of this study was to assess the Qol.of patients with CRS in a hospital.setting in k.nshasa. Methods: This was a cross-sectional.anal.tical.study conducted from June 2020 to May 2021 in the ENT service of the k.nshasa University Hospital.and the Monk.l. Hospital.Center. The study invol.ed 113 patients aged at l.ast 18 years, whose QOl.was compared with that of a control.group consisting of 100 non-patients. QOl.was assessed using the Sino-Nasal.Outcome Test (SNOT-22) Questionnaire. Resul.s: The mean age of the patients was 41.0 years (18 - 74 years) and that of the control. was 39.1 years (19 - 77 years). More than hal. of the participants were university graduates. The median SNOT-22 score was 44 (14 - 78) in patients and 7 (1 - 40) in control.. Compared with subjects without CRS, patients with CRS had significantl. higher scores in al. four domains of the SNOT-22. Around 9 out of 10 patients had a severel. impaired Qol.compared with 2 out of 10 control.. Considering mil.l. impaired Qol. we found that in the otol.gical.and sleep domains, scores were not significantl. different between patients and control.. In the case of severel. impaired Qol. however, onl. the otol.gical.domain showed a non-significant difference in scores between the two groups. Concl.sion: CRS is a real.publ.c heal.h probl.m in our environment and significantl. al.ers the Qol.of patients suffering from it, with repercussions on their professional.productivity;hence the need for better management.

关键词： Chronic Rhinosinusitis Qual.ty of l.fe SNOT-22 ENT k.nshasa