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Retinal nerve fiber layer and ganglion cell-inner plexiform layer thickness in children with obesity

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International Journal of Ophthalmology(English edition) 2016年第3期9卷 434-438页

作者： Selim demir Samet ozer Sait Alim Alper Günes Hüseyin Ortak Resul Yilmaz Department of Ophthalmology Faculty of Medicine Gaziosmanpasa University Tokat 60030 Turkey Department of Pediatrics Faculty of Medicine Gaziosmanpasa University Tokat 60030 Turkey

AIM：To evaluate retinal nerve fiber layer（RNFL）thickness analysis of peripapillary optic nerve head（PONH） and macula as well as ganglion cell-inner plexiform layer（GCIPL） thickness in obese children.· METHODS：Eighty-five children with obesity and 30 controls were included in the *** thicknesses of the PONH and macula of each subject＇s right eye were measured by high-resolution spectral-domain optic coherence tomography（OCT）.· RESULTS：The RNFL thicknesses of central macular and PONH were similar between the groups（all P 〉0.05）.The GCIPL thickness was also similar between the ***,the RNFL thickness of temporal outer macula were 261.7±13.7 and 268.9±14.3 μm for the obesity and the control group,respectively（P =0.034）.· CONCLUSION：Obesity may cause a reduction in temporal outer macular RNFL thickness.

关键词： ganglion cell-inner plexiform layer retinalnerve fiber layer thickness optical coherence tomography obesity

The Bigger Picture of Changes in China:Reform and Opening-up

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China Today 2018年第12期67卷 36-39页

作者： EMRE demir China Media Group

EACH country has certain moments in its his-tory that put it onto a new trajectory of development and changes the way it was forever. It is not an easy task to initiate, maintain, sus-tain, or construct such radical c... 详细信息

关键词：改革图画中国

Exciton dynamics in luminescent carbon nanodots： Electron-hole exchange interaction

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Nano Research 2016年第2期9卷 549-559页

作者： Bo Peng Xin Lu Shi Chen Cheng Hon Alfred Huan Qihua Xiong Evren Mutlugun Hilmi Volkan demir Siu Fung Yu Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore NOVITAS Nanoelectronics Centre of Excellence School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798 Singapore LUMINOUS Centre of Excellence for Semiconductor Lighting and Displays School of Electrical and Electronic Engineering NanyangTechnological University Singapore 639798 Singapore Department of Applied Physics the Hong Kong Polytechnic University Hong Hum Hong Kong SAR China

The electron-hole exchange interaction significantly influences the optical properties of excitons and radiative decay. However, exciton dynamics in luminescent carbon dots （Cdots） is still not clear. In this study, we have developed a simple and efficient one-step strategy to synthesize luminescent Cdots using the pyrolysis of oleylamine. The sp^2 clusters of a few aromatic rings are responsible for the observed blue photoluminescence. The size of these clusters can be tuned by controlling the reaction time, and the energy gap between the π-π＊ states of the sp^2 domains decreases as the sp^2 cluster size increases. More importantly, the strong electron-hole exchange interaction results in the splitting of the exciton states of the sp^2 clusters into the singlet-bright and triplet-dark states with an energy difference ΔE, which decreases with increasing sp^2 cluster size owing to the reduction of the confinement energy and the suppression of the electron-hole exchange interaction.

关键词： carbon dots photoluminescence pyrolysis electron-hole exchange interaction energy splitting

Evaluation of carotid intima-media thickness and carotid arterial stiffness in children with adenotonsillar hypertrophy

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世界儿科杂志:英文版 2016年第1期12卷 103-108页

作者： MuratÇiftel Berrin demir Günay Kozan Osman Yılmaz Hasan Kahveci Ömer Kılıç Department of Pediatric Cardiology Erzurum Training and Research HospitalErzurumTurkey Department of Radiology Erzurum Training and Research HospitalErzurumTurkey Department of Ear Noseand ThroatErzurum Training and Research HospitalErzurumTurkey Neonatal unit Erzurum Training and Research HospitalErzurumTurkey Department of Pediatric Infectious Diseases Erzurum Training and Research HospitalErzurumTurkey

Background:Adenotonsillar hypertrophy can produce cardiopulmonary disease in ***,it is unclear whether adenotonsillar hypertrophy causes *** study evaluated carotid intimamedia thickness and carotid arterial stiffness in children with adenotonsillar ***:The study included 40 children with adenotonsillar hypertrophy(age:5-10 years)and 36 healthy children with similar age and body mass *** blood pressure,diastolic blood pressure,and pulse pressure were measured in all *** intima-media thickness,carotid arterial systolic diameter,and carotid arterial diastolic diameter were measured using a high-resolution ultrasound *** on these measurements,carotid arterial strain,carotid artery distensibility,beta stiffness index,and elasticity modulus were ***:Carotid intima-media thickness was greater in children with adenotonsillar hypertrophy(0.36±0.05 mm vs.0.34±0.04 mm,P=0.02)compared to healthy *** stiffness index(3.01±1.22 vs.2.98±0.98,P=0.85),elasticity modulus(231.39±99.23 vs.226.46±83.20,P=0.88),carotid arterial strain(0.17±0.06 vs.0.17±0.04,P=0.95),and carotid artery distensibility(13.14±3.88 vs.12.92±3.84,P=0.75)were similar between children with adenotonsillar hypertrophy and the healthy ***:The present study revealed increased carotid intima-media thickness in children with adenotonsillar *** risk of subclinical atherosclerosis may be higher in children with adenotonsillar hypertrophy.

关键词： adenotonsillar hypertrophy carotid artery stiffness carotid intima media thickness subclinical atherosclerosis

Acupuncture Enhances Chances of Pregnancy in Unexplained Infertile Patients Who Undergo A Blastocyst Transfer in A Fresh-Cycle

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Chinese Journal of Integrative Medicine 2019年第4期25卷 298-302页

作者： Hakan ?oksüer Mert Ula Barut Murat BozkurT Elif Agacayak Sibel Sak Mustafa demir Eray Cal?skan Diyarlife IVF Center Department of Obstetrics and Gynecology Harran University School of Medicine Department of Obstetrics and Gynecology Bahcesehir University Department of Obstetrics and GynecologyVM Medikalpark Pendik Hospital Dicle University School of Medicine Department of Obstetrics and Gynecology Bahcesehir University Department of Obstetrics and Gynecology

Objective: To analyze the effects of acupuncture on in vitro fertilization patients with unexplained ***: We retrospectively analyzed the charts of a total of 302 cycles performed in 273 patients attending Assisted Reproductive Technology(ART) Centre from August 2013 to August *** the study period,embryo transfer with acupuncture(Acupuncture group,46 cases) and without acupuncture(Control group,42 cases) were *** to embryo transfer,the following points were used in the acupuncture group: Neiguan(CX 6),Diji(SP 8),Taichong(Liv 3),Baihui(Gv 20),and Guilai(S 29).These sessions were carried out two times before and after embryo transfer in a single *** addition,auricular acupuncture was also performed at ear points,including ear point 55(Shenmen),ear point 58(Zhigong),ear point 22(Neifenmi)and ear point 34(Naodian).The biochemical pregnancy rate and clinical pregnancy rate after transplantation were compared between two ***: The clinical pregnancy rate in the acupuncture group was higher than that in the control group [60.9%(28/46) vs.33.3%(14/42),respectively,P<0.05].Likewise,the live birth rate in the acupuncture group was also higher than that in the control group [71.7%(33/46) vs.31.0%(12/42),P<0.01).Conclusion: Administration of acupuncture on the day of embryo transfer dramatically improved fertility results in women who underwent in vitro fertilization/intra-cytoplasm sperm injection for reproduction.

关键词： acupuncture assisted reproduction embryo transfer pregnancy rate

High-efficiency CdTe/CdS core/shell nanocrystals in water enabled by photo-induced colloidal hetero-epitaxy of CdS shelling at room temperature

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Nano Research 2015年第7期8卷 2317-2328页

作者： Hakimeh Zare Maziar Marandi Somayeh Fardindoost Vijay Kumar Sharma Aydan Yeltik Omid Akhavan Hilmi Volkan demir Nima Taghavinia Institute for Nanoscience and Nanotechnology Shafif University of Technology Tehran 14588 Iran Department of Physics Faculty of Sciences Arak University Arak 38156-8-8349 Iran Department of Physics Department of Electrical and Electronics Engineering and UNAM-Institute of Materials Science and Nanotechnology Bilkent University Ankara Turkey Luminous Center of Excellence for Semiconductor Lighting and Displays Microelectronics Division School of Electrical and Electronics Engineering and Physics and Applied Physics Division School of Physical and Mathematical Sciences Nanyang Technological University Singapore 639798 Singapore Physics Department ShafifUniversity of Technology Tehran 14588 Iran

We report high-efficiency CdTe/CdS core/shell nanocrystals synthesized in water by epitaxially growing CdS shells on aqueous CdTe cores at room temperature, enabled by the controlled release of S species under low-intensity ultraviolet （UV） light illumination. The resulting photo-induced dissociation of S2O2- ions conveniently triggers the formation of critical two-dimensional CdS epitaxy on the CdTe surface at room temperature, as opposed to initiating the growth of individual CdS core-only nanocrystals. This controlled colloidal hetero-epitaxy leads to a substantial increase in the photoluminescence （PL） quantum yield （QY） of the shelled nanocrystals in water （reaching 64%）. With a systematic set of studies, the maximum PL QY is found to be almost independent of the illuminating UV intensity, while the shell formation kinetics required for reaching the maximum QY linearly depends on the illuminating UV intensity. A stability study of the QD films in air at various temperatures shows highly improved thermal stability of the shelled QDs （up to 120 ℃ in ambient air）. These results indicate that the proposed aqueous CdTe/CdS core/shell nanocrystals hold great promise for applications requiring efficiency and stability.

关键词： CdTe/CDs,core/shell nanocrystal thermal stability photochemical

Laryngopharyngeal reflux and Helicobacter pylori

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World Journal of Gastroenterology 2014年第27期20卷 8964-8970页

作者： Taner Yllmaz Münir demir Bajin Rlza nder Günayd?n Serdar zer Tevfik Szen Department of Otolaryngology Head and Neck Surgery Hacettepe University Hospital

Laryngopharyngeal reflux(LPR) occurs when gastric contents pass the upper esophageal sphincter, causing symptoms such as hoarseness, sore throat, coughing, excess throat mucus, and globus. The pattern of reflux is different in LPR and gastroesophageal reflux. LPR usually occurs during the daytime in the upright position whereas gastroesophageal reflux disease more often occurs in the supine position at night-time or during sleep. Ambulatory 24-h double pH-probe monitoring is the gold standard diagnostic tool for LPR. Acid suppression with proton pump inhibitor on a long-term basis is the mainstay of treatment. Helicobacter pylori(H. pylori) is found in many sites including laryngeal mucosa and interarytenoid region. In this paper, we aim to present the relationship between LPR and H. pylori and review the current literature.

关键词： Laryngophrayngeal reflux Helicobacter pylori Gastroesophageal reflux disease Proton pump inhibitors

Determination of Istanbul geoid using GNSS/levelling and valley cross levelling data

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Geodesy and Geodynamics 2020年第3期11卷 163-173页

作者： Müge Albayrak Mustafa TevfikÖzlüdemir Mohammad Mohseni Aref Kerem Halicioglu Geomatics Engineering Istanbul Technical UniversityIstanbulTurkey School of Earth Science The Ohio Stare UniversityColumbusOHUSA Institute of Geosciences Potsdam UniversityPotsdamGermany Institute of Mathematics Freie UniversitātBerlinGermany

The Istanbul GPS Triangulation Network(IGTN) and the Istanbul Levelling Network(ILN),established in2006,provide data for the determination of a local GNSS/levelling geoid *** networks’ measurements were done separately on both the Asian and European sides of the Bosphorus Strait in the vicinity of *** connect these regions for those networks,a Valley Cross Levelling(VCL) data set,acquired in 1986 and 2004,was *** use of this VCL data set was challenging in calculating the Istanbul geoid model,primarily because of its *** this study,this challenge was overcome through newly collected VCL data in 2010,allowing for the readjustment of the ILN and the newly collected VCL data *** Istanbul geoid model was computed using soft computing techniques including the adaptive-network-based fuzzy inference system(ANFIS) and the artificial neural networks(ANNs).The resulting Istanbul GNSS/levelling geoid model is shown to be more reliable when compared with the model computed using conventional interpolation techniques.

关键词： GNSS/Icvclling Geoid Valley cross levelling Soft computing techniques Interpolation techniques

Hearing the Sound of the Lost Cities

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China Today 2019年第6期68卷 66-69页

作者： EMRE demir China Media Group Turkish Service

EVERY music band has their own story of how they came together. What brought Route to Diomira (RTD) together was the book Invisible Cities . It was an ordinary night in Beijing. While we were drinking Yanjing beer, which is a strong symbol of the city’s long past, and eating fresh soya beans at an open air restaurant with some friends, we suddenly discovered that everyone at the table had something in common: Each of us had read the book, Invisible Cities , by Italian writer Italo Calvio at a certain period in our lives and had been influenced by it.

关键词： Hearing the Sound Lost Cities