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Alvarado, Eskelinen, Ohhmann and Raja Isteri Pengiran Anak saleha Appendicitis scores for diagnosis of acute appendicitis

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World Journal of Gastroenterology 2013年第47期19卷 9057-9062页

作者： Hasan Erdem süleyman etinkünar Koray Das Enver Reyhan Cumhur Deger Mehmet Aziret Hilmi Bozkurt seluk Uzun selim szen Oktay rkrücü Department of General surgery Adana Numune Training and Research HospitalAdana 01240Turkey

AIM:To assess the reliability and practical applicability of the widely used Alvarado,Eskelinen,Ohhmann and Raja Isteri Pengiran Anak saleha Appendicitis(RIPAsA)scoring systems in patients with suspected acute ***:Patients admitted to our tertiary center due to suspected acute appendicitis constituted the study *** were divided into two *** group(Group A)consisted of patients who underwent appendectomy and were histopathologically diagnosed with acute appendicitis,and non-appendicitis group(Group N-A)consisted of patients who underwent negative appendectomy and were diagnosed with pathologies other than appendicitis and patients that were followed *** operative findings for the patients,the additional analyses from follow up of the patients and the results of those analyses were recorded using the follow-up ***:One hundred and thirteen patients with suspected acute appendicitis were included in the *** the 113 patients(62 males,51 females),the mean age was 30.2±10.1(range 18-67)*** the 113patients,94 patients underwent surgery,while the rest were followed *** the 94 patients,77patients were histopathologically diagnosed with acute *** study showed a sensitivity level of81%for the Alvarado system when a cut-off value of 6.5was used,a sensitivity level of 83.1%for the Ohmann system when a cut-off value of 13.75 was used,a sensitivity level of 80.5%for the Eskelinen system when a cut-off value of 63.72 was used,and a sensitivity level of 83.1%for the RIPAsA system when a cut-off value of 10.25 was ***:The Ohmann and RIPAsA scoring systems had the highest specificity for the diagnosis of acute appendicitis.

关键词： Acute appendicitis Alvarado Eskelinen Ohhmann Raja Isteri Pengiran Anak saleha Appendicitis

Investigation of Microstructure, Microhardness and Thermal Properties of Ag-In Intermetallic Alloys Prepared by Vacuum Arc Meltings

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Journal of Wuhan University of Technology(Materials science) 2024年第1期39卷 182-187页

作者： ÇELİK Erçevik ATA EsENER Pınar ÖZTÜRK Esra AKsÖZ sezen Nevşehir HacıBektaşVeli University Department of Physics50300NevşehirTurkey Erciyes University Graduate School of Natural and Applied Sciences38039KayseriTurkey Kocaeli University Department of Physics41380KocaeliTurkey

Ag-In intermetallic alloys were produced by using vacuum arc furnace. Differential scanning Calorimetry(DsC) and Energy Dispersive X-Ray spectrometry(EDX) were used to determine the thermal properties and chemical composition of the phases respectively. Microhardness values of Ag-In intermetallics were calculated with Vickers hardness measurement method. According to the experimental results, Ag-34 wt%In intermetallic system generated the best results of energy saving and storage compared to other intermetallic systems. Also from the microhardness results, it was observed that intermetallic alloys were harder than pure silver and Ag-26 wt%In system had the highest microhardness value with 143.45 kg/mm^(2).

关键词： thermal properties microstructure characterization microhardness alloys material characterization

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Multi-aspect analysis of ureteral access sheath usage in retrograde intrarenal surgery: A RIRsearch group study

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Asian Journal of Urology 2024年第1期11卷 80-85页

作者： Oktay Özman Hacı M.Akgül Cem Başataç Önder Çınar Eyüp B.sancak Cenk M.Yazıcı Bülent Önal Haluk Akpınar Gaziosmanpasa Training and Research Hospital Urology ClinicİstanbulTurkey TekirdağNamık Kemal University School of MedicineDepartment of UrologyTekirdağTurkey Group Florence Nightingale Hospitals Department of UrologyİstanbulTurkey Zonguldak Bulent Ecevit University School of MedicineDepartment of UrologyZonguldakTurkey Çanakkale Onsekiz Mart University School of MedicineDepartment of UrologyÇanakkaleTurkey İstanbul University-Cerrahpaşa Cerrahpaşa Medical FacultyDepartment of UrologyİstanbulTurkey

Objective:To evaluate the effect of ureteral access sheath(UAs)use and calibration change on stone-free rate and complications of retrograde intrarenal surgery(RIRs).Methods:Data from 568 patients undergoing RIRs for kidney or upper ureteral stones were retrospectively ***,patients were compared after 1:1 propensity score matching,according to UAs usage during RIRs(UAs used[+]87 and UAs non-used[−]87 patients).Then all UAs+patients(n=481)were subdivided according to UAs calibration:9.5-11.5 Fr,10-12 Fr,11-13 Fr,and 13-15 *** outcomes of the study were the success and complications of ***:stone-free rate of UAs+patients(86.2%)was significantly higher than UAs−patients(70.1%)after propensity score matching(p=0.01).stone-free rate increased with higher caliber UAs(9.5-11.5 Fr:66.7%;10-12 Fr:87.0%;11-13 Fr:90.6%;13-15 Fr:100%;pstoperative complications of UAs+patients(11.5%)were significantly lower than UAs−patients(27.6%)(p=0.01).Complications(8.7%)with 9.5-11.5 Fr UAs was lower than thicker UAs(17.2%)but was not statistically significant(p=0.09).UAs usage was an independent factor predicting stone-free status or peri-and post-operative complications(odds ratio[OR]3.654,95%confidence interval[CI]1.314-10.162;OR 4.443,95%CI 1.350-14.552;OR 4.107,95%CI 1.366-12.344,respectively).Conclusion:Use of UAs in RIRs may increase stone-free rates,which also increase with higher caliber *** usage may reduce complications;however,complications seemingly increase with higher UAs calibration.

关键词： stone Retrograde intrarenal surgery Ureteral access sheath Urolithiasis Kidney

semiotics and political discourse in the post-truth era

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Language and semiotic studies 2024年第1期10卷 65-82页

作者： BetülÇanakpınar Murat Kalelioğlu V.Doğan Günay Istinye University IstanbulTürkiye school of Foreign Languages T C Mardin Artuklu UniversityMardinTürkiye Faculty of Literature Department of LinguisticsDokuz Eylül UniversityIzmirTürkiye

The concept of post-truth has been on the world’s agenda since *** this concept,which is frequently encountered in political life,provides the speaker with a freer speaking ***,instead of presenting the reality to their constituents as it is,want to reshape this reality according to their own ideology and present it to the *** have certain objectives in creating such a virtual *** aims can be listed as keeping the voters,increasing the voting potential,and attracting undecided voters to their *** common result of all these aims is to gain political power or to remain in the existing ***-truth reality is constructed relatively more easily in social media *** construction of reality can be through beliefs or *** such ways,the recipient is tried to be persuaded,and thus behavioral change is *** of the most necessary subjects for this artificial reality atmosphere is the *** idea that the anti-subject does not know the truth that we(you and I)know and believe and is trying to destroy it is the main theme of post-truth *** try to persuade the voters to believe in their own truth by expressing this idea to *** are many examples of this around the *** this study,firstly,the concept of post-truth is examined and its various definitions are *** distinctions between the concepts of real and truth are analyzed and then it is explained how and for what purposes the concept of post-truth is used in *** the comparison of post-truth and fake news,the concept is discussed within the framework of sender-receiver interaction in terms of *** concept is tried to be elucidated with the modalities such as/convincing/,/believing/,/being/,/appearing/.Besides,using the semiotic square,the study also tries to reveal the different purposes and forms of use of the concept of *** a result,it has been observed

关键词： semiotics discourse politics post-truth fake news

Identification of Microorganisms in Poultry Farms in N’djamena and the Border Areas of Hadjer-Lamis and Chari-Baguirmi Chad

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Journal of Agricultural Chemistry and Environment 2024年第2期13卷 223-234页

作者： Abakar Abbo Zakaria Bebanto Antipas Ban-Bo Nadine Terei Bongo naré Richard Gandolo Abdelsalam Adoum Doutoum Labortoire de Rattachement IRED (Institut de Recherches en Elevage pour le Dé veloppement) University of N&#8217Djamena N&#8217Djamena Chad Laboratory of Biochemistry-Cellular and Molecular Biology-Microbiology (L2BCM) Faculty of Exact and Applied Sciences University of N&#8217Djamena N&#8217Djamena Chad Livestock Research Institute for Development (IRED) N&#8217Djamena Chad Adam Barka University of Abé ch&#233 Ab&#233ch&#233 Chad

Introduction: On the outskirts of Ndjamena, semi-industrial poultry farming and traditional poultry farming are practised informally on almost all poultry farms in Chad. This type of poultry farming is faced with real health problems attributable to a lack of monitoring of the vaccination schedule, inadequate compliance with biosecurity measures and poor application of the Ichikawa rule based on the 5 M’s. Objective: The aim of this article is to identify the microorganisms responsible for contamination of poultry farms in the study area. Method: The study was carried out from 28/04/2022 to 31/01/2023 on the basis of 300 samples taken from feed, drinking water, droppings and scrapings from poultry housing surfaces in the 30 farms that served as a framework for our research. sampling was of the simple random type, and farms were selected on the basis of the farmers’ consent. The data were recorded on pre-established survey forms. Our study was cross-sectional, descriptive and prospective. Bacteria were isolated using the reference method NF EN IsO 6579 for salmonella spp. and cultured on the specific medium eosin methylene blue (EMB) for Escherichia coli, Pseudomonas and Citrobacter freundii. Results: The following results emerged from this study: Escherichia coli (5.33%), Pseudomonas (1.33%), Citrobacter freundii (12%) and salmonella paratyphi (21.68%). Conclusion: Of the 300 samples analysed, 121 (40.33%) were contaminated with pathogens. This high level of contamination is a health problem. The study shows that biosecurity is less satisfactory on the farms visited. Nevertheless, farms with a very satisfactory level of biosafety ensure food safety and variety for the population.

关键词： Microorganisms Identification Poultry Farms N’Djamena Hadjer-Lamis Chari-Baguirmi(Chad)

Mechanical properties of vanadium-alloyed austempered ductile iron for crankshaft applications

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Frontiers of Mechanical Engineering 2023年第3期18卷 251-263页

作者： Fatma BAYATA süleyman Batuhan VATAN Department of Mechanical Engineering Istanbul Bilgi University34060 IstanbulTurkey

This study focused on the development of austempered ductile iron(ADI)with desirable combination of mechanical properties for crankshaft applications by the combined effect of vanadium(V)alloying and an optimized heat treatment *** produced unalloyed GGG60,0.15%V-alloyed GGG60(V-15),and 0.30%V-alloyed GGG60 samples were subjected to austenitizing at 900℃for 1 h and subsequent austempering processes at 250,300,and 350℃for 15,30,60,90,and 180 *** a result of these austempering processes,different bainitic structures were obtained,which led to the formation of diverse combinations of mechanical *** mechanical properties of the austempered samples were tested comprehensively,and the results were correlated with their microstructures and the stability of the retained austenite *** the microstructural observations,the V-alloyed samples exhibited a finer microstructure and a more acicular ferrite phase than unalloyed *** V addition delayed the coarsening of the acicular ferrite structures and considerably contributed to the improvement of the mechanical properties of ***,the X-ray diffraction results revealed that the retained austenite volume and the carbon enrichment of austenite phases in ADI samples were remarkably affected by the addition of *** increase in volume fraction of retained austenite and its carbon content provided favorable ductility and toughness to V-15,as confirmed by the elongation and impact test ***,the dual-phase ausferrite microstructure of V-15 that was austempered at 300℃for 60 min exhibited high strength with substantial ductility and toughness for crankshaft applications.

关键词： austempered ductile iron(ADI) vanadium alloying mechanical properties crankshafts retained austenite

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Effect of Eu3+,Bi3+,and Li+ doping on luminescent 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 Physics and Integrative Institute of Basic sciences Soongsil University

We investigated the emission properties of Eu3+-doped GdNbO4-based oxide phosphors,aiming at improving the Eu3+emission by codoping of Bi3+and Li+.Eu3+singly doped,Eu3+and Bi3+doubly doped,and Eu3+,Bi3+,and Li+triply doped GdNbO4were prepared using a high-temperature solid-state reaction *** red-orange emissions from Eu3+in the singly doped samples are significantly improved by the codoping of Bi3+,mainly due to the energy transfer from Bi3+to Eu3+.The additional codoping of Li+is found to increase the Eu3+emission *** improvement might be attributed to the increase in the photoluminescent quantum yield originating from larger grain sizes and better crystallinity.A detailed analysis of the X-ray diffraction pattern and the asymmetric ratio estimated from the photoluminescence spectra show that the local lattice environment around Eu3+in GdNbO4does not change significantly with the codoping of Bi3+and Li+.Our results indicate that Li+doping is a promising way to improve the emission properties of rare-earth ion-doped GdNbO4phosphors.

关键词： Eu 3+ GdNbO 4 Codoping of Li + Photoluminescence sensitizer Rare earths

First evidence for chiral wobbling of triaxial nuclei

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Nuclear science and Techniques 2024年第7期35卷 4-7页

作者： s.Frauendorf Department of Physics and Astronomy University of Notre DameNotre DameIN 46556USA

Chirality(Greek“handiness”)is a property of many com-plex *** molecules exist in two forms,one being the mirror image of the *** for our hands,it is impossible to make the images identical by a suitable *** two forms are called left-handed and *** have the same binding energy,because the electro-magnetic interaction,which holds the molecule together,does not change under a *** properties that are insensitive to the geometry are also the *** different geometry is the reason why the left-handed form turns the polarization plane of transmitted light in one direction by some angle while the right-handed form turns it in the oppo-site direction by the same ***,the geometrical differences between the two species may have other *** two species of the carvon molecule shown in Fig.1 taste quite differently.

关键词： turns Chiral mirror

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Tribological behavior of lubricant-impregnated porous polyimide

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Friction 2024年第4期12卷 711-725页

作者： Jinbang LI Ningning ZHOU Janet s.s.WONG school of Mechanical Engineering and Mechanics Ningbo UniversityNingbo 315211China Beijing Key Laboratory of Long-life Technology of Precise Rotation and Transmission Mechanisms Beijing Institute of Control EngineeringBeijing 100029China Department of Mechanical Engineering Imperial College LondonLondon SW72AZUK

Porous materials impregnated with lubricants can be used in conditions where limited lubricant is *** this work,three porous polyimides(PPI)with different densities were ***(PAO)impregnated PPI(iPPI)discs were rubbed against steel and sapphire *** operando observations of the iPPI-sapphire contacts show that oil is released under an applied load,forming a meniscus around *** at the outlet is created at high sliding *** amount of released oil increases with increasing PPI *** moduli,E*,estimated based on the actual contact size show that trapped oil in iPPIs contributes to load *** higher speeds,tribological rehydration of the contact occurs in low density iPPI,with that E*rises with *** high density PPIs,high speeds give a constantly high E*which is limited by the viscoelastic properties of the PPI network and possibly the rate of oil *** of iPPI-steel contacts is governed by the mechanical properties of the PPI,the flow of the lubricant,and the roughness of the PPI *** low-and medium-density(highly porous,high roughness)PPIs,large amount of oil is released,and lubrication is mainly via lubricant restricted in the contact in the pores and possibly tribological *** high density(low porosity)PPI,with lower roughness,hydrodynamic lubrication is achieved which gives the lowest *** results show that polymeric porous materials for effective lubrication require the optimization of its surface roughness,stiffness,oil flow,and oil retentions.

关键词： polyimide porous material friction mechanism polymer limited lubrication