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起泡剂对气泡大小和疏水矿物浮选性能的影响（英文）

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Journal of Central South University 2024年第7期 2280-2299页

作者： Gül?ah GüVEN berivan tun? ?.Beste AYDIN Gülay BULUT Mineral Processing Engineering Department Faculty of Mines Istanbul Technical University Research Center Metso Outotec

起泡剂通过防止气泡合并来抑制气泡长大，从而产生稳定的泡沫。气泡和粒子的碰撞概率随着气泡的减少而显著增大。在相同体积系统中，大气泡分布产生的气泡较少，小气泡分布产生的气泡较多。本研究旨在将两相体系的泡沫表征参数与三相体... 详细信息

起泡剂通过防止气泡合并来抑制气泡长大，从而产生稳定的泡沫。气泡和粒子的碰撞概率随着气泡的减少而显著增大。在相同体积系统中，大气泡分布产生的气泡较少，小气泡分布产生的气泡较多。本研究旨在将两相体系的泡沫表征参数与三相体系的煤和滑石粉浮选行为相关联。为此，用甲基异丁基碳醇（MIBC）、异辛醇（2乙基己醇）、松油、Dowfroth 250泡沫剂研究单起泡剂体系和双起泡剂体系对气泡聚集的抑制作用。根据单起泡剂的结果，在最低临界聚集浓度为6×10-6时，异辛醇的气泡最小，Sauter平均直径为0.80 mm。通过混合起泡剂Dowfroth 250和松油，气泡尺寸显著减小到0.45 mm。在煤浮选中，单起泡剂和多起泡剂共混物的回收率最高，在两相体系中气泡尺寸最小，但在滑石浮选中没有发现这种关系。

关键词：浮选起泡剂混合物气泡尺寸煤和滑石浮选

Leaf thermal tolerance and sensitivity of temperate tree species are correlated with leaf physiological and functional drought resistance traits

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Journal of Forestry Research 2023年第1期34卷 63-76页

作者： Ines Katharina Münchinger Peter Hajek berivan Akdogan Astor Torano Caicoya Norbert Kunert Department of Integrative Biology and Biodiversity Research Institute of BotanyUniversity of Natural Resources and Life Sciences ViennaGregor-Mendel Str.331190 ViennaAustria Geobotany University of FreiburgSchanzlestr.179104 FreiburgGermany TUM School of Live SciencesChair of Forest Growth and Yield ScienceTechnical University of MunichGermanyHans-Carl-Von-Carlowitz 285354 FreisingGermany

Climate change is causing more frequent and severe climatic events,such as extreme heat and co-occurring drought,potentially accelerating tree *** tree species will cope better with those extreme events is still being *** study focuses on heat as a physiological stress factor and interspecifi c variation of thermal tolerance and sensitivity traits in 15 temperate coniferous and broad-leaved tree *** investigate(1)whether thermal tolerance and sensitivity traits correlate with a droughtrelated physiological trait,particularly the leaf turgor loss point(πtlp,wilting point),and(2)how thermal tolerance and sensitivity traits co-vary within diff erent tree-functional types classifi ed by morphological and physiological traits of the leaf,i.e.,leaf mass per area(LMA)and percentage loss of area(PLA).The study was carried out in the Traunstein Forest Dynamics Plot of the ForestGEO network in *** temperature response of the maximum quantum yield of photosystem II(F_(v)/F_(m))on leaf discs was determined,from which various physiological leaf traits were estimated,one of which is the breaking point temperature(T_(5)),the temperature at which F_(v)/F_(m)declines by 5%.Additionally,the temperature of 50%(T_(50))and 95%(T_(95))decline in F_(v)/F_(m)was *** decline width between T_(50)and T 5(DW T_(50)−T_(5))was taken as an indicator of the species’thermal *** breaking point temperature ranged from 35.4±3.0 to 47.9±3.9℃among the investigated tree species and T 50 ranged between 46.1±0.4 and 53.6±0.7℃.A large interspecifi c variation of thermal tolerance and sensitivity was *** ash(Fraxinus excelsior L.)was the most heat-sensitive species,while Wild cherry(Prunus avium L.)was the least heat-sensitive *** with a more negativeπtlp tended to have a higher breaking point temperature than species with a less negativeπtlp.A lower thermal sensitivity characterized species with a higher LMA,and high PLA was

关键词： Water stress Heat stress Physiological limitations Climate change ForestGEO

Relationship between fall risks and activities of daily living in older individuals

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Frontiers of Nursing 2020年第3期7卷 249-256页

作者： Senay Karadag Arli Metin Yildiz Ayse berivan Bakan Department of Nursing Agri Ibrahim Cecen University School of HealthAgri 04100Turkey

Objective:To investigate the relationship between fall risks and maintaining activities of daily living in individuals aged 65 and ***:This study is *** was conducted with 233 individuals who were aged 65 and over in Family Health Centers located in the eastern part of Turkey between February and June ***:The mean older individuals’DENN Fall Risks Assessment Scale score was 11.73±7.13,and 62.2%of the participants were in the high-risk *** Index of Activities of Daily Living(ADL)mean score was 68.03±25.36,and 45.1%of the participants were in the moderately dependent *** was a statistically significant,negative correlationship between Barthel Index of ADL score and age and DENN Fall Risks Assessment Scale *** addition,there was a statistically significant,positive relationship between the DENN Fall Risks Assessment Scale score and age(p<0.01).Conclusions:This study found that level of dependency and fall risks increased with the increase in *** global and multidisciplinary interventions are needed to decrease older individuals’dependency levels and fall risks today when the number of older individuals is increasing.

关键词： activities of daily living dependency older fall risk

Comparison of the clinical efficacy of two different types of post systems which were restored with composite restorations

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World Journal of Clinical Cases 2018年第3期6卷 27-34页

作者： Buket Ayna Emrah Ayna Sema Celenk Emine Goncü Bacaran berivan Dündar Yιlmaz Ìbrahim Halil Tacir Mehmet Cudi tuncer Department of Pedodontics Faculty of Dentistry Dicle University Department of Prosthodontics Faculty of Dentistry Dicle University Department of Anatomy Faculty of Medicine Dicle University

AIM To compare the efficacy of resin composite restorations, retained with either polyethylene or zirconia-rich glass fiber posts. METHODS Sixty-two single rooted maxillary and mandibularcentral incisor teeth in forty-four patients (15 males and 29 females; age range 15-32 years) were restored either with an ultrahigh molecular weight polyethylene(UHMWP) fiber post (Bondable Reinforcement Ribbon, DENSE, Ribbond, Seattle, WA, United States) or a zircon-rich glass fiber post (Snowpost, Lot H 040; Carbotech, Ganges, France). Then, direct resin composite restoration (Clearfil AP-X, Kuraray) was performed for both post systems in tooth color suitable. Patients were recalled for routine inspections at 6 mo, 1, 2 and 3 *** The restorations were assessed during each recall evaluation according to predetermined clinical and radiographic criteria (periapical lesion; marginal leakage and integrity; color stability; surface stain and loss of retention of the post or the composite buildup material). The follow-up data showed no significant difference in these criteria between polyethylene fibre posts and zirconia-rich glass fibre *** The efficacy of resin composite restorations, retained with either polyethylene or zirconia-rich glass fiber posts were similar, suggesting that both types of fiber post can be used successfully to help retain resin composite restorations.

关键词： Polyethylene fiber Zircon-rich glass fiber Direct composite

Safety and efficiency of Wharton’s Jelly-derived mesenchymal stem cell administration in patients with traumatic brain injury:First results of a phase I study

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World Journal of Stem Cells 2024年第6期16卷 641-655页

作者： Serdar Kabatas ErdinçCivelek Osman Boyalı Gülseli berivan Sezen Omer Ozdemir Yeliz Bahar-Ozdemir Necati Kaplan Eyüp Can Savrunlu Erdal Karaöz Department of Neurosurgery University of Health Sciences TurkeyGaziosmanpaşa Training and Research HospitalIstanbul 34360Türkiye Center for Stem Cell&Gene Therapy Research and Practice University of Health Sciences TurkeyIstanbul 34255Türkiye Department of Neurosurgery University of Health SciencesGaziosmanpaşa Training and Research HospitalIstanbul 34255Türkiye Department of Physical Medicine and Rehabilitation Health Sciences University Sultan Abdulhamid Han Training and Research HospitalIstanbul 34668Türkiye Department of Neurosurgery Istanbul Rumeli UniversityÇorlu Reyap HospitalTekirdağ59860Türkiye Department of Neurosurgery Nevşehir State HospitalNevşehir 50300Türkiye Center for Regenerative Medicine and Stem Cell Research&Manufacturing(LivMedCell) Liv HospitalIstanbul 34340Türkiye Department of Histology and Embryology Istinye UniversityFaculty of MedicineIstanbul 34010Türkiye Center for Stem Cell and Tissue Engineering Research and Practice Istinye UniversityIstanbul 34340Türkiye

BACKGROUND Traumatic brain injury(TBI)is characterized by a disruption in the normal function of the brain due to an injury following a trauma,which can potentially cause severe physical,cognitive,and emotional *** cell transplantation has evolved as a novel treatment modality in the management of TBI,as it has the potential to arrest the degeneration and promote regeneration of new cells in the ***’s Jelly-derived mesenchymal stem cells(WJ-MSCs)have recently shown beneficial effects in the functional recovery of neurological *** To evaluate the safety and efficiency of MSC therapy in *** We present 6 patients,4 male and 2 female aged between 21 and 27 years who suffered a *** 6 patients underwent 6 doses of intrathecal,intramuscular(i.m.)and intravenous transplantation of WJ-MSCs at a target dose of 1×106/kg for each application *** was assessed using the Modified Ashworth scale(MAS),motor function according to the Medical Research Council Muscle Strength Scale,quality of life was assessed by the Functional Independence Measure(FIM)scale and Karnofsky Performance Status *** Our patients showed only early,transient complications,such as subfebrile fever,mild headache,and muscle pain due to ***,which resolved within 24 *** the one year follow-up,no other safety issues or adverse events were *** 6 patients showed improvements in their cognitive abilities,muscle spasticity,muscle strength,performance scores and fine motor skills when compared before and after the *** values,which we used to assess spasticity,were observed to statistically significantly decrease for both left and right sides(P<0.001).The FIM scale includes both motor scores(P<0.05)and cognitive scores(P<0.001)and showed a significant increase in pretest posttest *** difference observed in the participants’Karnofsky Performance Scale values pre and post the intervention was statistically si

关键词： Traumatic brain injury Wharton Jelly Stem cell therapy Transplantation Mesenchymal stem cell

The Effects of Kinesio Tape Application on Functional Performance Measurements in Young Female Basketball Players with Chronic Ankle Instability

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Journal of Sports Science 2017年第4期5卷 198-206页

作者： berivan Beril Kilic Safinaz Yildiz Turker Sahinkaya Omer Batin Gozubuyuk Sensu Dincer Department of Sports Medicine Istanbul University Istanbu134093 Turkey

This study was designed to investigate the effects of kinesio tape （KT） on functional performance of female basketball players with and without chronic ankle instability （CAI）. The players with （n = 15） and without ankle instability （n = 16） were enrolled. KT was applied with tension in the instability group and without tension in the control group. Before KT application, 30 minutes and 48 hours after application; muscle strength and endurance were tested in plantar flexion and dorsiflexion, joint position sense was measured in ankle dorsiflexion and plantar flexion using a dynamometer. Dynamic postural stability was evaluated with a balance system between the levels of 12-4. Vertical jumping heights were measured by jump-meter. The results were statistically assessed by SPSS 19 version. In CAI group, dynamic postural stability showed statistically significant improvement in both legs overall （P 〈 0.0001）, antero-posterior （P 〈 0.004） and medio-lateral indexes （P 〈 0.009）. CAI group showed significant improvements in one-leg postural stability overall, antero-posterior and medio-lateral indexes after 48 hours （P 〈 0.011, P 〈 0.022, P 〈 0.038, respectively）. Joint position sense, vertical jump height and muscle strength and endurance were also compared in both groups, and there was no significant difference between the groups. Postural stability indexes were decreased by supporting fimction of KT to the ankle. As a result, we can say that KT has a beneficial effect on maintaining posture by correcting standing kinematics in cases with CAl. We may suggest that KT can be utilized in preventing the injuries in CAI.

关键词： Taping stability proprioception balance recurrent isokinetic.

Phase I study on the safety and preliminary efficacy of allogeneic mesenchymal stem cells in hypoxic-ischemic encephalopathy

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World Journal of Experimental Medicine 2021年第2期11卷 17-29页

作者： Serdar Kabataş ErdinçCivelek Necati Kaplan Eyüp Can Savrunlu Gülseli berivan Sezen Mourat Chasan Halil Can Ali Genç Yener Akyuva Osman Boyalı Furkan Diren Erdal Karaoz Department of Neurosurgery University of Health SciencesGaziosmanpaşa Training and Research Hospitalİstanbul 34255Turkey Pediatric Allergy-Immunology Marmara UniversityInstitute of Health Sciencesİstanbul 34854Turkey Center for Stem Cell and Gene Therapy Research and Practice University of Health Sciencesİstanbul 34255Turkey Department of Neurosurgery Istanbul Rumeli UniversityÇorlu Reyap HospitalTekirdağ59860Turkey Department of Neurosurgery İstanbul Biruni UniversityFaculty of Medicineİstanbul 34010Turkey Department of Neurosurgery İstanbul Medicine Hospitalİstanbul 34203Turkey Department of Neurosurgery İstanbul Asya Hospitalİstanbul 34250Turkey Department of Neurosurgery Mustafa Kemal UniversityFaculty of MedicineHatay 31060Turkey Center for Regenerative Medicine and Stem Cell Research and Manufacturing(LivMedCell) Liv Hospitalİstanbul 34340Turkey Department of Histology and Embryology İstinye UniversityFaculty of Medicineİstanbul 34010Turkey Center for Stem Cell and Tissue Engineering Research and Practice İstinye Universityİstanbul 34340Turkey

BACKGROUND Hypoxic-ischemic encephalopathy(HIE)is a leading cause of morbidity and mortality in the adult as well as in the neonate,with limited options for treatment and significant *** To investigate the safety and preliminary efficacy of allogeneic mesenchymal stem cells(MSCs)in HIE *** Patients who had HIE for at least 6 mo along with significant dysfunction and disability were *** patients were given Wharton’s jelly-derived MSCs at 1×106/kg intrathecally,intravenously,and intramuscularly twice a month for two *** therapeutic effects and prognostic implications of MSCs were evaluated by multiple *** independence measure(FIM),modified Ashworth,and Karnofsky scales were used to assess any side effects,neurological and cognitive functions,and overall *** The 8 subjects included in the study had a mean age of 33.25±10.18 *** HIE exposure and mean post-HIE durations were 45.63±10.18 and 19.67±29.04 mo,*** FIM score was 18.38±1.06,mean modified Ashworth score was 43.5±4.63,and mean Karnofsky score was *** the first 24 h,5 of the patients experienced a subfebrile state,accompanied by mild headaches due to intrathecally administration and muscle pain because of intramuscularly *** and functional examinations,laboratory tests,electroencephalography,and magnetic resonance imaging were performed to assess safety of *** FIM score increased by 20.88±3.31 in the first month(P=0.027)and by 31.38±14.69 in 12 mo(P=0.012).The rate of patients with an FIM score of 126 increased from 14.58%to 16.57%in the first month and 24.90%in 12 *** Multiple triple-route Wharton’s jelly-derived MSC administrations were found to be safe for HIE patients,indicating neurological and functional *** on the findings obtained here,further randomized and placebo research could be performed.

关键词： Hypoxic-ischemic encephalopathy Stem cell Transplantation Wharton's jelly