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值得关注的八种商业技术趋势

当代经理人 2008年第5期 108-112页

作者： James M.Manyika Roger P.Roberts kara l.sprague 麦肯锡旧金山分公司麦肯锡硅谷分公司

目前出现的八种趋势正在改变着很多市场和企业，企业高管们应该学会影响结果。

关键词：商业技术多市场企业高管

Investigation of hearing aid users'speech understanding in noise and their spectral-temporal resolution skills

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Journal of Otology 2023年第3期18卷 146-151页

作者： Mert Kılıç Eyyup kara Istanbul University-Cerrahpas¸a Institute of Graduate StudiesDepartment of AudiologyIstanbulTurkey Istanbul University-Cerrahpas¸a Faculty of Health SciencesDepartment of AudiologyIstanbulTurkey

Purpose:Our study aims to compare speech understanding in noise and spectral-temporal resolution skills with regard to the degree of hearing loss,age,hearing aid use experience and gender of hearing aid ***:Our study included sixty-eight hearing aid users aged between 40-70 years,with bilateral mild and moderate symmetrical sensorineural hearing *** gap detection test,Turkish matrix test and spectral-temporally modulated ripple test were implemented on the participants with bilateral hearing *** test results acquired were compared statistically according to different variables and the correlations were ***:No statistically significant differences were observed for speech-in-noise recognition,spectraltemporal resolution among older and younger adults in hearing aid users(p>0.05).There wasn’t found a statistically significant difference among test outcomes as regards different hearing loss degrees(p>0.05).Higher performances were obtained in terms of temporal resolution in male participants and participants with more hearing aid use experience(plations were obtained between the results of speech-in-noise recognition,temporal resolution and spectral resolution tests performed with hearing aids(plusion:Our study findings emphasized the importance of regular hearing aid use and it showed that some auditory skills can be improved with hearing *** of correlations among the speechin-noise recognition,temporal resolution and spectral resolution tests have revealed that these skills should be evaluated as a whole to maximize the patient’s communication abilities.

关键词： Hearing aids Speech in noise Spectral resolution Speech intelligibility Temporal resolution

Tribological and Electrochemical Corrosion Properties of CNT-Incorporated Plasma Electrolytic Oxidation(PEO)Coatings on AZ80 Magnesium Alloy

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Acta Metallurgica Sinica(English letters) 2022年第7期35卷 1195-1206页

作者： Rabia kara Huseyin Zengin Department of Metallurgical and Materials Engineering Karabuk University78050 KarabukTurkey

Plasma electrolytic oxidation(PEO)coatings were carried out in silicate-based electrolyte embedded with various amounts of carbon nanotube(CNT)additives(0,0.5,1,2 and 4 g/l)on AZ80 magnesium alloy ***,tribological and electrochemical corrosion properties of the coated specimens were *** results demonstrated that the increasing CNT additions into the electrolyte resulted in a gradual increase in the thickness of PEO-coating *** CNT addition to the electrolyte by 0.5 g/l resulted in a slight decrease in the roughness of PEO-coating above which it continually *** resistance of the PEO-coated specimens showed a gradual improvement with increasing CNT-incorporation within the *** electrochemical corrosion tests revealed that the best corrosion resistance was found after the CNT addition into the electrolyte by 0.5 g/l due to the better roughness values,more homogenous coating layers and less pore formation.

关键词： Coating Electrochemical corrosion Magnesium alloy Plasma electrolytic oxidation(PEO) Wear

Effects of fentanyl and sucrose on pain in retinopathy examinations with pain scale,near-infrared spectroscopy,and ultrasonography:a randomized trial

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World Journal of Pediatrics 2023年第9期19卷 873-882页

作者： Nursu kara Didem Arman Zeynep Seymen Adem Gül Serdar Cömert Department of Pediatrics Division of NeonatologyUniversity of Health Sciences Istanbul Research and Training HospitalIstanbulTurkey Department of Opthalmology University of Health Sciences Istanbul Research and Training HospitalIstanbulTurkey

Background This study aimed to compare the efficacy of intravenous,intranasal fentanyl and oral sucrose in reducing the pain response during retinopathy of prematurity examinations using premature infant pain profile(PIPP)*** The study included 42 infants who underwent retinopathy screening *** infants were divided into three groups:oral sucrose,intranasal fentanyl,and intravenous *** signs(heart rate,arterial oxygen saturation,and mean arterial pressure)were *** PIPP was used to determine pain *** oxygenation and middle cerebral artery blood flow were evaluated using near-infrared spectroscopy and Doppler ultrasonography,*** data obtained were compared between *** There was no significant difference between the three groups regarding postconceptional and postnatal ages or birth weights and weight at the time of *** babies had moderate pain during the *** correlation was observed between analgesia method and pain scores(P=0.159).In all three groups,heart rate and mean arterial pressure increased,whereas oxygen saturation decreased during the exam compared with pre-examination ***,heart rate(HR),mean arterial pressure(MAP)and arterial oxygen saturation(sPO2)values did not differ between groups(HR,P=0.150;MAP,P=0.245;sPO2,P=0.140).The cerebral oxygenation(rSO2)values between the three groups were found to be similar[rSO2:P=0.545,P=0.247,P=0.803;fractional tissue oxygen extraction(FTOE):P=0.553,P=0.278].Regarding cerebral blood flow values,we also did not find any difference between the three groups[mean blood flow velocity(Vmean):P=0.569,P=0.975;maximum flow velocity(Vmax):P=0.820,P=0.997].Conclusions Intravenous and intranasal fentanyl and oral sucrose were not superior to each other in preventing pain during the examination for retinopathy of prematurity(ROP).Sucrose may be a good alternative for pain control during ROP *** findings suggest

关键词： Analgesia Cerebral blood flow Cerebral oxygenation Neonate Retinopathy of prematurity

Quantifying relations between altered hydrology and fish community responses for streams in Minnesota

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Ecological Processes 2022年第1期11卷 536-560页

作者： Jeffrey R.Ziegeweid Gregory D.Johnson Aliesha l.Krall kara Fitzpatrick Sara B.levin U.S.Geological Survey California Water Science Center6000 J StPlacer HallSacramentoCA 85819USA U.S.Geological Survey Upper Midwest Water Science Center2280 Woodale DrMounds ViewMN 55112USA Minnesota Pollution Control Agency 520 Lafayette RdSt.PaulMN 55155USA Minnesota Pollution Control Agency 7678 College RoadSuite 105BaxterMN 56425USA

Background:Altered hydrology is a stressor on aquatic life,but quantitative relations between specific aspects of streamflow alteration and biological responses have not been developed on a statewide scale in *** sub-sets regression analysis was used to develop linear regression models that quantify relations among five categories of hydrologic metrics(i.e.,duration,frequency,magnitude,rate-of-change,and timing)computed from streamgage records and six categories of biological metrics(i.e.,composition,habitat,life history,reproductive,tolerance,trophic)computed from fish-community samples,as well as fish-based indices of biotic integrity(FIBI)scores and FIBI scores normalized to an impairment threshold of the corresponding stream class(FIBI_BCG4).Relations between hydrology and fish community responses were examined using three hydrologic datasets that represented periods of record,long-term changes,and short-term changes to flow regimes in streams of ***:Regression models demonstrated significant relations between hydrologic explanatory metrics and fish-based biological response metrics,and the five regression models with the strongest linear relations explained over 70%of the variability in the biological metric using three hydrologic metrics as explanatory ***-based biological metrics demonstrated the strongest linear relations to hydrologic *** most commonly used hydrologic metrics were related to bankfull flows and aspects of flow ***:Final regression models represent paired streamgage records and biological samples throughout the State of Minnesota and encompass differences in stream orders,hydrologic landscape units,and watershed *** methods can support evaluations of stream fish communities and facilitate targeted efforts to improve the health of fish *** also can be applied to locations outside of Minnesota with continuous streamgage data and fish-community sampl

关键词： EflowStats Best subset regression Altered hydrology Fish community Indices of biotic integrity Ecological flows

Management of Barrett’s esophagus with dysplasia refractory to radiofrequency ablation

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World Journal of Gastroenterology 2020年第17期26卷 2030-2039页

作者： kara l Raphael Arvind J Trindade Division of Gastroenterology Long Island Jewish Medical CenterZucker School of Medicine at Hofstra/NorthwellNorthwell Health SystemNew Hyde ParkNY 11040United States

Radiofrequency ablation(RFA)is very effective for eradication of flat Barrett’s mucosa in dysplastic Barrett’s esophagus after endoscopic resection of raised ***,in a minority of the time,RFA may be ineffective at eradication of the Barrett’s *** complete eradication of intestinal metaplasia can be challenging in these *** review article focuses on the management of patients with dysplastic Barrett’s esophagus refractory to RFA *** strategies discussed in this review include optimizing the RFA procedure,optimizing acid suppression(with medical,endoscopic,and surgical management),cryotherapy,hybrid argon plasma coagulation,and EndoRotor resection.

关键词： low-grade dysplasia High-grade dysplasia Radiofrequency ablation Cryotherapy EndoRotor Hybrid argon plasma coagulation Argon plasma coagulation

Phenolic profile and investigation of biological activities of Allium scorodoprasum ***

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Food Bioscience 2022年第2期46卷 456-467页

作者： Tu˘gba Demir Ozlem Akpınar Haki kara Hüseyin Güngor Sivas Cumhuriyet University Faculty of VeterinaryFood Hygiene and TechnologySivasTurkey Tokat Gaziosmanpas¸a University Faculty of Architecture and EngineeringDepartment of Food EngineeringTokatTurkey Sivas Cumhuriyet University Faculty of VeterinaryPharmacology and ToxicologySivasTurkey

In this study,phenolic profile of Allium scorodoprasum *** and its bioactivity in multiway approach including antioxidant,antimicrobial,antidiabetic,cytotoxic and antiinflamatory activities were *** extraction of phenolic and flavonoid compounds from Allium scorodoprasum *** was optimized as a function of ethanol percentage,extraction temperature and extraction time by employing a response surface *** optimal extraction conditions were found as 79℃extraction temperature,28%ethanol and 118 min duration of the *** was determined as the major phenolic compound of the extract obtained under the optimal conditions and followed by vanillic,caffeic,2,4 hydroxybenzoic and ellagic *** addition to high antioxidant capacity,the obtained extract showed antimicrobial activity,against different bacteria and *** concentrations of the extract obtained at the optimal conditions that inhibited 50%of Aspergillus oryzae and pancreaticα-amylases andα-glycosidase activities were calculated as 11.56,14.35 and 19.35 mg extract/ml,*** antiinflammatory effect of the obtained extract was also examined,and it was more inhibitory against xanthine oxidase activity than against lipoxygenase *** cytotoxicity of the optimized extract was observed against breast and bone cancer cells,and it showed significant cytotoxic activity especially on bone cancer *** a result,Allium scorodoprasum *** could serve as a promising source of natural bioactive compounds for application in food and non-food products.

关键词： Allium Phenolic compound Antioxidant Antimicrobial Cytotoxic

Evaluation of proximal tubule functions in children with COVID‑19:a prospective analytical study

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World Journal of Pediatrics 2022年第9期18卷 607-612页

作者： Fatma Devrim Elif Böncüoğlu Elif Kıymet ŞahikaŞahinkaya Ela Cem Mine Düzgöl Aybüke Akaslan kara KamileÖtiken Arıkan AslıKantar Ebru Yılmaz Nida Dinçel Nuri Bayram İlker Devrim Department of Pediatric Nephrology University of Health Sciences Dr.Behçet Uz Child Disease and Pediatric Surgery Training and Research HospitalİzmirTurkey Department of Pediatric Infectious Diseases University of Health Sciences Dr.Behçet Uz Child Disease and Pediatric Surgery Training and Research HospitalİzmirTurkey

Background There are limited numbers of studies focusing on renal efects of coronavirus disease 2019(COVID-19)infection and proximal tubular dysfunction in children with COVID-19 *** purpose of this study was to evaluate the functions of the proximal tubule in hospitalized children with confrmed acute *** The children who were hospitalized for confrmed COVID-19 were included in this prospective descriptive *** presence of at least two of the following four abnormalities was used to diagnose proximal tubule injury:abnormal tubular reabsorption of phosphate,normoglycemic glycosuria,hyperuricosuria,and *** A total of 115 patients were included in the *** a third of the individuals had elevated blood creatinine levels or *** addition,abnormal renal tubular phosphate loss measured by renal tubular phosphate loss was found in 10(8.7%)patients,as was hyperuricosuria in 28.6%.As a result,total proximal tubular dysfunction was found in 24(20.9%)*** One in every fve children with acute COVID-19 infections had proximal tubular dysfunction,according to our ***,the rate of proximal tubular dysfunction was lower than in adults,it should be *** recovery of proximal tubular function in children with COVID-19 should be followed.

关键词： Coronavirus disease 2019(COVID-19) Proteinuria Proximal tubular dysfunction Severe acute respiratory syndrome coronavirus 2(SARS-CoV-2) Tubular reabsorption of phosphate

ON THE m^(th) ORDER DIFFERENCE SEQUENCE SPACE OF GENERAlIZED WEIGHTED MEAN AND COMPACT OPERATORS

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Acta Mathematica Scientia 2013年第3期33卷 797-813页

作者： Metin BASARIR Emrah Evren kara Department of Mathematics Sakarya University Department of Mathematics Bilecik Seyh Edebali University

In this article, using generalized weighted mean and difference matrix of order m, we introduce the paranormed sequence space l（u, v, p; △（m））, which consist of the sequences whose generalized weighted △（m）-difference means are in the linear space l（p） defined by ***. Also, we determine the basis of this space and compute its α-, β- and γ-duals. Further, we give the characterization of the classes of matrix mappings from l（u, v, p, △（m）） to l∞, c, and co. Finally, we apply the Hausdorff measure of noncompacness to characterize some classes of compact operators given by matrices on the space lp（U, v, △（m））（1 ≤ p 〈 ∞）.

关键词： Paranormed sequence spaces difference sequence spaces weighted mean α-,β, γ-duals, matrix mappings Hausdorff measure of noncompactness compactoperators