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Embedded Atom Method-Based Geometry Optimization Aspects of Body-centered cubic Metals

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chinese Physics Letters 2013年第5期30卷 112-115页

作者： M.Güler E.Güler Department of Physics Hitit University19030 CorumTurkey

We present embedded atom method-based geometry optimization calculations for Fe, cr, Mo, Nb, Ta, V and W body-centered cubic metals with Finnis–Sinclair potentials. After the optimization, we determine their typical elastic constants, bulk modulus, shear modulus, Young's modulus, Poisson's ratios, elastic wave velocities and cohesive energies. Additionally, we perform a benchmark between the experiments and the available density functional theory results. In general, our results show a good consistency with previous findings on the elastic and cohesive energy properties of the considered metals.

关键词： modulus optimization cubic

Synthesis of hierarchical transition metal oxyhydroxides in aqueous solution at ambient temperature and their application as OER electrocatalysts

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Journal of Energy chemistry 2022年第8期31卷 89-97,I0003页

作者： Zongkun chen Xingkun Wang Sascha Keßler Qiqi Fan Minghua Huang Helmut cölfen University of Konstanz Physical ChemistryUniversitätsstraße 10Konstanz D-78457Germany School of Materials Science and Engineering Ocean University of ChinaQingdao 266100ShandongChina

First-row(3 d)transition metal oxyhydroxides have attracted increasing attention due to their various *** investigating the oxidation mechanism and processing such materials into hierarchical architectures are greatly desired for their further development,it remains unclear how the oxidation state change occurs,and efforts to produce hierarchical oxyhydroxides in compliance with high ecological and economic standards have progressed ***,we describe a facile one-step coprecipitation route for the preparation of hierarchical coOOH,NiOOH and MnOOH,which involves the diffusion of NH_(3)originating from ammonium hydroxide solution into an aqueous solution containing metal ion salts and K_(2)S_(2)O_(8).comprehensive characterizations by scanning electron microscope,transmission electron microscopy,X-ray diffraction analysis,X-ray photoelectron spectroscopy,ultraviolet-visible spectroscopy and in situ p H measurement demonstrated that K_(2)S_(2)O_(8)induces the oxidation state change of metal ion species after the start of ***,it was found that,benefiting from the OH–concentration gradient created by the NH_(3)diffusion method and the suitable growth environment provided by the presence of K_(2)S_(2)O_(8)(high nucleation rate and secondary nucleation),the formation of hierarchical oxyhydroxide structures can be realized in aqueous solution at ambient temperature without the use of heat energy and additional structure-directing *** hierarchical coOOH structures are performed as the electrocatalysts for the oxygen evolution reaction in alkaline media,which exhibit good activity with an overpotential of 320 m V at 10 m A cm^(-2)and a low Tafel slope of 59.6 m V dec^(–1),outperforming many congeneric ***,our study not only provides important insights to understand the formation mechanism of hierarchical oxyhydroxides,but also opens up new opportunities for the preparation of hierarchical oxyhydroxides via a f

关键词： Formation mechanism Hierarchical transition metal oxyhydroxides Aqueous solution ambient temperature Oxygen evolution reaction

Acquired sensorineural hearing loss,oxidative stress,and microRNAs

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Neural Regeneration Research 2025年第9期20卷 2513-2519页

作者： Desmond A.Nunez Ru c.Guo Division of Otolaryngology–Head&Neck Surgery Department of SurgeryFaculty of MedicineThe University of British ColumbiaVancouverBCCanada Division of Otolaryngology–Head&Neck Surgery Gordon&Leslie Diamond Health Care CentreVancouver General HospitalVancouverBCCanada Faculty of Medicine–The University of British columbia VancouverBCCanada

Hearing loss is the third leading cause of human ***-related hearing loss,one type of acquired sensorineural hearing loss,is largely responsible for this escalating global health ***-induced,ototoxic,and idiopathic sudden sensorineural are other less common types of acquired hearing *** etiology of these conditions is complex and multi-fa ctorial involving an interplay of genetic and environmental *** stress has recently been proposed as a likely linking cause in most types of acquired sensorineural hearing *** non-coding RNA sequences known as microRNAs(miRNAs)have increasingly been shown to play a role in cellular hypoxia and oxidative stress responses including promoting an apoptotic *** hair cell death is a central histopathological finding in sensorineural hearing *** these cells do not regenerate in humans,it underlies the irreversibility of human age-related hearing *** EMBASE,Ovid MEDLINE,Web of Science core collection,and *** databases over the period August 1,2018 to July 31,2023 were searched with"hearing loss,""hypoxamiRs,""hypoxia,""microRNAs,""ischemia,"and"oxidative stress"text words for English language primary study publications or registered clinical *** red clinical trials known to the senior author we re also assessed.A total of 222studies were thus *** excluding duplicates,editorials,retra ctions,secondary research studies,and non-English language articles,39 primary studies and clinical trials underwent full-text *** resulted in 11 animal,in vitro,and/or human subject journal articles and 8 registered clinical trial database entries which form the basis of this narrative *** miR-34a and miR-29b levels increase with age in *** miRNAs were demonstrated in human neuroblastoma and murine cochlear cell lines to target Sirtuin 1/peroxisome proliferato r-activated receptor gamma coactivator-1-alpha(SIRT1/P Gc-1α),SIRT

关键词： hearing loss hypoxia microRNAs oxidative stress sensorineural

coupling sensor observation services and web processing services for online geoprocessing in water dam monitoring

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International Journal of Digital Earth 2018年第1期11卷 64-78页

作者： c.Stasch B.Pross B.Gräler c.Malewski c.Förster S.Jirka 52°North GmbH Martin-Luther-King-WegMünsterGermany Wupperverband Untere LichtenplatzerWuppertalGermany

Novel sensor technologies are rapidly *** enable a monitoring and modelling of our environment in a level of detail that was not possible a few years ***,while the raw data produced by these sensors are useful to get a first overview,it usually needs to be post-processed and integrated with other data or models in different *** this paper,we present an approach for integrating several geoprocessing components in the TamIS water dam monitoring system developed with the Wupperverband,a regional waterbody authority in *** approach relies upon the OGc Web Processing Service and is tightly coupled with Sensor Observation Service instances running at the *** implementing the standardized XML-based interface,lightweight REST APIs have been developed to ease the integration with thin Web clients and other Web-based *** this standards-based approach,new processing facilities can be easily integrated and coupled with different observation data sources.

关键词： Geoprocessing sensor web spatial data infrastructure water monitoring dam monitoring

Anterior vitrectomy and partial capsulectomy via anterior approach to treat chronic postoperative endophthalmitis

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International Journal of Ophthalmology(English edition) 2013年第1期6卷 103-105页

作者： Mete Güler Turgut Yìlmaz Department of Ophthalmology School of Medicine Adiyaman University Department of Ophthalmology School of MedicineInnü University

AIM:To describe the results of vitrectomy and partial capsulectomy via anterior approach surgical technique in treatment of chronic postoperative endophthalmitis (cPE). METHODS:clinical records of 9 patients treated for cPE between 2006 and 2010 were reviewed retrospectively. All of these patients were treated with vitrectomy and partial capsulectomy via anterior approach. RESULTS:Six of 9 patients were male. The average patients’ age was (60 ±8.1) years. The average period between cataract extraction and onset of signs and symptoms was (3.6±1.3) weeks. The average presenting visual acuity was 0.3 ±0.1 and the average final post operative visual acuity was 0.7±0.2. The mean follow-up period was (28.1±8.9) weeks. In all patients, the inflammation subsided after surgery. · cONcLUSION:Our results suggest that anterior vitrectomy and partial capsulectomy via anterior approach may be considered as potentially useful and relatively less invasive technique to treat cPE.

关键词： chronic postoperative endophthalmitis anterior vitrectomy partial capsulectomy

Increased syndecan-1 and glypican-3 predict poor perinatal outcome and treatment resistance in intrahepatic cholestasis

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Hepatobiliary & Pancreatic Diseases International 2020年第3期19卷 271-276页

作者： Basak Gümüs Güler Sibel Ozler Department of Health Sciences Istinye UniversityIstanbul 34010Turkey Department of Perinatology Selcuk University Faculty of MedicineKonya 42130Turkey

Background:Intrahepatic cholestasis of pregnancy(IcP)increases the risk of adverse pregnancy *** study aimed to explore the association between serum syndecan-1 and glypican-3 levels and the adverse perinatal outcome as well as the responses to the treatment of ursodeoxycholic acid(UDcA).Methods:This prospective,case control study included 88 pregnant women(44 women with IcP and 44 healthy controls).The primary end points were the perinatal outcome and the response to UDcA therapy.A logistic regression model was used to identify the independent risk factors of adverse pregnancy outcomes and reduced response to UDcA ***:Women with IcP had significantly higher serum syndecan-1(1.27±0.36 ng/m L vs.0.98±0.50 ng/m L;P=0.003),glypican-3(1.78±0.13 ng/m L vs.1.69±0.16 ng/m L;P=0.004),AST(128.59±1.44 vs.13.29±1.32 U/L;Pcompared with the *** increased levels of syndecan-1(OR=4.715,95%cI:1.554–14.310;P=0.006),glypican-3(OR=8.465,95%cI:3.372–21.248;P=0.007),ALT(OR=1.382,95%cI:1.131–1.690;P=0.002),and postprandial bile acid(PBA)(OR=3.392,95%cI:1.003–12.869;P=0.026)were correlated to *** adverse neonatal outcome was related to increased glypican-3(OR=4.275,95%cI:2.726–5.635;P=0.039),and PBA(OR=3.026,95%cI:1.069–13.569;P=0.037).Increases of syndecan-1(OR=7.464,95%cI:2.130–26.153,P=0.017)and glypican-3(OR=6.194,95%cI:2.951–13.002;P=0.025)were the risk factors of decreased response to UDcA ***:Syndecan-1 and glypican-3 might be powerful determinants in predicting adverse perinatal outcome in patients with IcP,and they can be used to predict the response to the UDcA treatment.

关键词： Intrahepatic cholestasis of pregnancy Syndecan-1 Glypican-3 Adverse perinatal outcome Response to UDcA

Multiple sclerosis is at a checkpoint: advancing the program

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Neural Regeneration Research 2025年第3期20卷 811-812页

作者： Brandon c.Smith Jessica L.Williams Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Biological Geologicaland Environmental SciencesCleveland State UniversityClevelandOHUSA

Multiple sclerosis(MS) is a chronic inflammatory and demyelinating disease of the central nervous system(cNS). Patients with MS experience sensory and motor function loss due to myelin and/or axon damage perpetuated b... 详细信息

关键词： Hauser sclerosis damage

comparison of a modified Mogen clamp and classic dorsal slit circumcision under local anesthesia:A clinical study

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current Urology 2022年第3期16卷 175-179页

作者： Yavuz Güler Department of Urology Private Safa HospitalIstanbul34000Turkey

Background:currently,although various methods are used,there is no gold standard method for ***,we developed a modified circumcision clamp inspired by the Mogen clamp suitable for circumcisions performed under local anesthesia in our *** evaluate its success and complications,we compared our modified Mogen clamp with a dorsal slit *** and methods:From 2013 to 2017,we retrospectively evaluated 1309 patients who had undergone circumcision;of these,832 used the modified Mogen clamp method(Group 1)and 477 used the dorsal slit method(Group 2).The patients'age,surgery duration,minor hemorrhage(not requiring suture or repeated surgical exploration after circumcision but with buffer or clotting solution used),major hemorrhage(hemorrhage requiring suture or exploration),redundant prepuce skin remnants,revision numbers,and family satisfaction values were evaluated and compared between the 2 ***:Patients were assessed at least 3 times:1 day,1 week,and 1 month after *** mean ages in Groups 1 and 2 were 16.5±22.8 versus 15.5±18.8 months,*** surgical procedure durations were 9.2±1.7 and 15.4±2.5 minutes in Groups 1 and 2,respectively(pcomplications were found in 164(19.7%)versus 81 patients(17.0%)(p=0.522),including redundant skin in 42(5.4%)versus 15 patients(3.14%)(p=0.105)and major hemorrhage in 20(2.4%)versus 15 patients(3.3%)(p=0.230)in Groups 1 and 2,***:Under local anesthesia,the circumcision procedure with the modified Mogen clamp can be performed more rapidly than with the dorsal slit,and the cosmetic results are better as the incision line is more *** postoperative complications were similar,with problems related to redundant skin occurring more frequently with clamp circumcision.

关键词： circumcision Mogen clamp Dorsal slit

A conserved arbuscular mycorrhizal fungal core-species community colonizes potato roots in the Andes

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Fungal Diversity 2016年第2期77卷 317-333页

作者： carolina Senés-Guerrero Arthur Schüßler Department of Biology GeneticsLudwig-Maximilians UniversityGrosshaderner Str.482152 PlaneggMartinsriedGermany

Plant-symbiotic arbuscular mycorrhizal fungi(amF)are of high global ecological and economic importance,but describing environmental communities of amF at the species level remains a challenge,despite the need to understand amF-plant preferences and to apply amF in sustainable ***,the potato-associated amF species community composition was assessed for three Andean countries along an altitudinal gradient and at different plant stages,by using 454 GS-FLX+sequencing of a 760 bp LSU rRNA gene PcR *** methods were compared:defining OTUs based on a simple sequence similarity threshold,or affiliating reference sequences to species based on a high throughput phylogenetic annotation approach using an evolutionary placement algorithm(EPA).The EPA-based approach was not only more precise,but also fundamental to robustly unveil the amF species community *** principal advantage of this approach was also demonstrated by using artificially constructed datasets based on validated public database *** affiliation of sequence reads to species using phylogenetic annotation revealed a surprisingly conserved amF core-species community structure in Andean potatoes,regardless of different plant stages and environmental *** total,41 species were detected and in some cases more than 25 species were found colonizing an individual root *** species were identified as dominant colonizers,co-occurring with cetraspora nodosa and certain claroideoglomus and Rhizophagus species in most potato root samples.

关键词： 454 pyrosequencing Andean ecosystems Arbuscular mycorrhizal fungi species communities DNA based species identification Evolutionary placement algorithm Solanum tuberosum(potato)