检索结果-南通市图书馆

Geochemistry,Fluid Inclusions and Sulfur Isotopes of the Goshgarchay Cu-Au Deposit(Western Azerbaijan)in Lesser Caucasus:Implications for the Origins of Ore-forming Fluids

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2023年第6期97卷 1719-1733页

作者： Fetullah ARIK yesim OZEN Nicat ALİMAMMADOV Department of Geological Engineering Konya Technical UniversityKonya 42250Turkey

The Goshgarchay Cu-Au deposit is located in the central part of the northwest flank of the Murovdagh region in the Lesser *** Goshgarchay Cu-Au deposit is associated with Middle Jurassic volcanic and Late Jurassic-Early Cretaceous high-K calc-alkaline intrusive *** Cu-Au mineralization is commonly related to quartz-sericite-chlorite alteration dominantly composed of chalcopyrite,gold,sphalerite,pyrite,bornite,hematite,covellite,chalcocite,malachite,and *** Goshgarchay copper-gold deposit,which is 600 m wide and approximately 1.2 km long,is seen as a faultcontrolled and vein-,stockwork-and disseminated type *** Goshgarchay Cu-Au deposit predominantly comprises Cu(max.64500 ppm)and Au(max.11.3 ppm),while it comprises relatively less amounts Zn(max.437 ppm),Mo(max.47.5 ppm),Pb(max.134 ppm),and Ag(max.21 ppm).The homogenization temperatures and salinities of fluid inclusions in quartz for stage Ⅰ range from 380℃ to 327℃,and 6.9 wt% to 2.6 wt% NaCl eq.,*** salinities in quartz for stage Ⅱ range from 304℃ to 253℃,and 7.6 wt% to 3.2 wt% NaCl eq.,*** calculated δ^(34)S_(h2s)values(-1.5‰ to 5.5‰)of sulfides and especially the narrow range of δ^(34)S_(h2s) values of chalcopyrite and bornite(between -0.07‰ and +0.7‰)indicate that the source of the Goshgarchay Cu-Au mineralization is *** on the mineralogical,geochemical,fluid inclusion,and sulfur isotopic data,the Goshgarchay Cu-Au deposit represents a late stage peripheral magmatic-hydrothermal mineralization probably underlain by a concealed porphyry deposit.

关键词： geochemistry fluid inclusion sulfur isotope Goshgarchay(Azerbaijan) Lesser Caucasus

Placement Effect on the Stability of Tetrapod Armor Unit on Breakwaters in Irregular Waves

在线全文

学校读者我要写书评

暂无评论

China Ocean Engineering 2017年第6期31卷 747-753页

作者： yesim CELIKOGLU Demet ENGIN Yildiz Technical University Department of Civil Engineering Hydraulics and Coastal Engineering Laboratory Davutpasa 34210 Esenler-Istanbul Turkey

Tetrapod, one of the well-known artificial concrete units, is frequently used as an armor unit on breakwaters. Two layers of tetrapod units are normmaly placed on the breakwaters with different placement methods. In this study, the stability of tetrapod units with two different regularly placement methods are investigated experimentally in irregular waves. Stability coefficients of tetrapod units for both placement methods are obtained. The important characteristic wave parameters of irregular waves causing the same damage ratio as those of the regular waves are also determined. It reveals that the average of one-tenth highest wave heights within the wave train （H1/lo） causes the similar damage as regular waves.

关键词： breakwaters tetrapod unit stability placement methods irregular waves

Endoscopic submucosal dissection for premalignant lesions and noninvasive early gastrointestinal cancers

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2011年第13期17卷 1701-1709页

作者： Sadettin Hulagu Omer Senturk Cem Aygun Orhan Kocaman altay Celebi Tolga Konduk Deniz Koc Goktug Sirin Ugur Korkmaz Ali Erkan Duman Neslihan Bozkurt Gokhan Dindar Tan Attila yesim Gurbuz Orhan TarcinDivision of Gastroenterology Derince State Hospital Kocaeli 41900 Turkey Cem Kalayci Division of Gastroenterology Kocaeli University Medical School Kocaeli 41000 Turkey Division of Gastroenterology American HospitalIstanbul 34365 Turkey Department of Pathology Kocaeli UniversityMedical School Kocaeli 41000 Turkey Division of Gastroenterology Marmara University School of Medicine Altunizade Istanbul 34662 Turkey

AIM: To investigate the indication, feasibility, safety, and clinical utility of endoscopic submucosal dissection (ESD) in the management of various gastrointestinal pathologies. METHODS: The medical records of 60 consecutive patients (34 female, 26 male) who underwent ESD at the gastroenterology department of Kocaeli University from 2006-2010 were examined. Patients selected for ESDhad premalignant lesions or non-invasive early cancers of the gastrointestinal tract and had endoscopic and histological diagnoses. Early cancers were considered to be confined to the submucosa, with no lymph node involvement by means of computed tomography and endosonography. RESULTS: Sixty ESD procedures were performed. The indications were epithelial lesions (n = 39) (33/39 adenoma with high grade dysplasia, 6/39 adenoma with low grade dysplasia), neuroendocrine tumor (n = 7), cancer (n = 7) (5/7 early colorectal cancer, 2/7 early gastric cancer), granular cell tumor (n = 3), gastrointestinal stromal tumor (n = 2), and leiomyoma (n = 2). En bloc and piecemeal resection rates were 91.6% (55/60) and 8.3% (5/60), respectively. Complete and incomplete resection rates were 96.6% (58/60) and 3.3% (2/60), respectively. Complications were major bleeding [n = 3 (5%)] and perforations [n = 5 (8.3%)] (4 colon, 1 stomach). Two patients with colonic perforations and two patients with submucosal lymphatic and microvasculature invasion (1 gastric carcinoid tumor, 1 colonic adenocarcinoma) were referred to surgery. During a mean follow-up of 12 mo, 1 patient with adenoma with high grade dysplasia underwent a second ESD procedure to resect a local recurrence. CONCLUSION: ESD is a feasible and safe method for treatment of premalignant lesions and early malignant gastrointestinal epithelial and subepithelial lesions. Successful en bloc and complete resection of lesions yield high cure rates with low recurrence.

关键词：胃肠道大肠癌早期病变膜下内镜剥离计算机断层扫描

Fatty liver in childhood

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Hepatology 2014年第1期6卷 33-40页

作者： yesim Ozturk Ozlem Bekem Soylu Department of Pediatrics Division of Pediatric Gastroenterology Dokuz Eylul University School of Medicine Hepatology and Nutrition Unit Department of Paediatric Gastroenterology Behcet Uz Children’s Disease and Pediatric Surgery Training and Research Hospital

Fatty liver is a growing health problem worldwide. It might evolve to nonalcoholic steatohepatitis, cirrhosis and cause hepatocellular carcinoma. This disease, which has increased because of eating habits, changes in food content and lifestyle, affects people from childhood. The most important risk factors are obesity and insulin resistance. Besides these factors, gender, ethnicity, genetic predisposition and some medical problems are also important. Cirrhosis in children is rare but is reported. Nonalcoholic fatty liver disease(NAFLD) has no specific symptoms or signs but should be considered in obese children. NAFLD does not have a proven treatment. Weight loss with family based treatments is the most acceptable management. Exercise and an applicable diet with low glycemic index and appropriate calorie intake are preferred. Drugs are promising but not sufficient in children for today.

关键词： Nonalcoholic fatty liver disease Nonalcoholic steatohepatitis Children Obesity Metabolic syndrome Insulin resistance Chronic liver disease

Comparison of the efficacies of patching and penalization therapies for the treatment of amblyopia patients

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2014年第3期7卷 480-485页

作者： Cemalettin Cabi sil Bahar Sayman Muslubas Ayse yesim Aydin Oral Metin Dastan Eye Clinic Sinop Government Hospital Eye Clinic Semdinli Government Hospital Eye Clinic Dr Lutfi Kirdar Kartal Training and Research Hospital Eye Clinic Kars Governmet Hospital

AIM:To compare the efficacies of patching and penalization therapies for the treatment of amblyopia ***:The records of 64 eyes of 50 patients 7 to16y of age who had presented to our clinics with a diagnosis of amblyopia,were evaluated *** eyes of 26 patients who had received patching therapy and 24 eyes of 24 patients who had received penalization therapy included in this *** latencies and amplitudes of visual evoked potential(VEP)records and best corrected visual acuities(BCVA)of these two groups were compared before and six months after the ***:In both patching and the penalization groups,the visual acuities increased significantly following the treatments(P<0.05).The latency measurements of the P100 wave obtained at 1.0°,15 arc *** of both groups significantly decreased following the ***,the amplitude measurements increased(P<0.05).CONCLUSION:The patching and the penalization methods,which are the main methods used in the treatment of amblyopia,were also effective over the age of 7y,which has been accepted as the critical age for the treatment of amblyopia.

关键词： amblyopia patching therapies penalization therapies visual evoked potential

Classification of the firmness of peaches by sensor fusion

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Agricultural and Biological Engineering 2015年第6期8卷 104-115,I0002页

作者： Kubilay Kazim Vursavus yesim Benal Yurtlu Belen Diezma-Iglesias Lourdes Lleo-Garcia Margarita Ruiz-Altisent Department of Agricultural Machinery and Technologies Engineering Faculty of AgricultureÇukurova University01330 AdanaTurkey Department of Agricultural Machinery and Technologies Engineering Faculty of AgricultureOndokus Mayıs UniversitySamsunTurkey LPF-Tagralia Department of Agricultural EngineeringTechnical Polytechnic University of MadridAvda.Computense s/n28040 MadridSpain

The objectives of this research were to compare the performance of each individual nondestructive sensor with the destructive sensor,and to apply sensor fusion technique to explore whether a combination of sensors would give better results than a single sensor for classification of peach *** were carried out with four peach varieties namely Royal Glory,Caterina,Tirrenia and *** this research,the three nondestructive firmness sensors acoustic firmness,low-mass impact and micro-deformation impact were used to measure firmness.A Bayesian classifier was chosen to provide a classification into three categories,namely soft,intermediate and *** level fusion technique was performed by using identity declaration provided by each *** data fusion system processed the information of the sensors to output the fused *** result of the high level fusion was compared with the classification provided by an unsupervised algorithm based on destructive reference *** fusion process of the nondestructive sensors provided some improvements in the firmness classification;the error rate varied from 25%to 19%for individual ***,the results of fusion process by using three sensors decreased the error rate from 19%to 13%.This research demonstrated that the fused systems provided more complete and complementary information and,thus,were more effective than individual sensors in the firmness classification of peaches.

关键词： peach firmness classification nondestructive sensor high level fusion Bayesian classifier

Determination of sedimentation rates in Izmir Bay using ^(210)Pb radionuclide

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2017年第11期28卷 266-270页

作者： Mutlu Ichedef Gungor Yener Hasan Baha Buyukisik Ebru yesim Ozkan Institute of Nuclear Sciences Ege University35100 IzmirTurkey Faculty of Fisheries Ege University35100 IzmirTurkey

In this study, using the constant rate of supply model, sedimentation rates of Izmir Bay were calculated and discussed. For this purpose, eight sediment cores were collected from inner part of the bay and sedimentation rates were calculated from vertical distribution of^(210)Pb.^(210)Pb activities were determined indirectly from ^(210)Po *** rates ranged from 0.10 to 0.52 cm/year. The highest sedimentation rates were determined in stations close to the Poligon stream. It was concluded that main transporting mechanism for sediments is river and streams in the area. In addition, sediment cores taken from the harbor were mixed due to bioturbation, water circulation and/or other factors.

关键词： Sedimentation rates I˙zmir Bay ^(210)Pb ^(210)Po

Speedy/RINGO: a molecular savior in spinal cord injury-based neurodegeneration?

在线全文

学校读者我要写书评

暂无评论

Neuroimmunology and Neuroinflammation 2019年第3期6卷 6-20页

作者： yesim Kaya Aysegul Yildiz Department of Molecular Biology and Genetics Faculty of ScienceMugla Sitki Kocman UniversityKotekliMenteseMugla 48000Turkey

Endogenous or exogenous insults can cause spinal cord injury(SCI),often resulting in the loss of motor,autonomic,sensory and reflex *** pathogenesis of SCI comprises two *** primary injury stage occurs at the moment of trauma and is characterized by hemorrhage and rapid cell *** secondary injury stage occurs due to progression of primary damage and is characterized by tissue loss and functional *** of the most important cellular mechanisms underlying secondary injury is glutamate excitotoxicity,which overactivates the calpain protease via excessive Ca2+influx and induces neuronal apoptosis via p53 ***,Ca2+influx elicits apoptosis by inducing p53,thus negatively affecting two pathways:the mitogenic extracellular signal-regulated kinase/mitogenactivated protein kinase(ERK/MAPK)pathway and the survival phosphoinositide 3-kinase/protein kinase B(PI3K/AKT)***/rapid inducer of G2/M progression in oocytes(Speedy/RINGO)is a cell cycle regulatory protein that increases survival of p53-positive mitotic cells by inhibiting the apoptotic ***,this protein elicits p53-dependent anti-apoptotic effects on calpain-induced degeneration of primary hippocampal neurons,amyotrophic lateral sclerosis motor neurons,and astrocytes and microglia in spinal cord *** pathophysiology of SCI has not been fully elucidated and this hinders the development of powerful therapeutic *** review focuses on the cellular mechanisms underlying the anti-apoptotic effects of Speedy/RINGO and discusses how this protective function can possibly be exploited to facilitate recovery from *** attention is paid to reversal of the negative effects on the ERK/MAPK and PI3K/AKT pathways via induction of p53.

关键词： Speedy/RINGO calpain p53 extracellular signal-regulated kinase/mitogen-activated protein kinase phosphoinositide 3-kinase/protein kinase B spinal cord injury glutamate excitotoxicity calcium influx

Long-term vision-threatening complications of phakic intraocular lens implantation for high myopia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2014年第2期7卷 376-380页

作者： Isil Bahar Sayman Muslubas Baran Kandemir Ayse yesim Aydin Oral Suleyman Kugu Metin Dastan Eye Clinic Hakkari Government Hospital Eye Clinic Dr.Lütfi Kirdar Kartal Education and Training Hospital Eye Clinic Kars Government Hospital

AIMTo report the long-term vision-threatening complications in patients who underwent phakic intraocular lens (pIOLs) implantation for high myopia.

关键词： phakic intraocular lens high myopia complications corneal decompensation rhegmatogenous retinal detachment