检索结果-南通市图书馆

Effect of 0h11/2 Level on Shell Model Calculations of ^105Sb and ^107Sb

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 2006年第6期23卷 1430-1433页

作者： erdal Dikmen Department of Physics Siileyman Demirel University Isparta Turkey

The full and reduced shell model calculations have been carried out for the light odd-even ^105Sb and ^107Sb isotopes. The model space has been chosen as 1d5/2, 0g7/2, 1d3/2, 2s1/2, and 0h11/2 for the full calculations and excluded 0h11/2 for the reduced calculations. The reduced shell model calculations of ^105Sb and ^107Sb isotopes are presented for the first time. We obtain the energy spectra for the ^105Sb and ^107Sb isotopes in the full and reduced model space by using CD-Bonn two-body effective nucleon-nucleon interaction. The resulting energy spectra are compared to the experimental results to understand the effect of the 0h11/2 level on the shell model calculations. We draw conclusions about the right model space in the shell model calculations for the isotopes around the n =Z= 50 region of the periodic table.

关键词： Shell Model Calculations periodic table

Commentary on"Primary orbital monophasic synovial sarcoma with calcification:A case report"

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 Clinical Cases 2022年第22期10卷 8054-8056页

作者： Oguzhan Tokur Sonay Aydın erdal Karavas Department of Radiology Ankara Training and Research HospitalAnkara 06230Turkey Department of Radiology Erzincan UniversityErzincan 24100Turkey

The present letter to the editor is related to the study titled“Primary orbital monophasic synovial sarcoma with calcification:A case report”.Orbital synovial sarcoma is one of the rare intraorbital masses seen in adult and pediatric *** case reports in the literature revealed that synovial sarcoma may contain ***,it is important to make differential diagnosis among calcified orbital masses in childhood.

关键词： Orbital tumor Synovial sarcoma Calcification Children Histopathology Radiology

Imaging of acute appendicitis: Advances

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 Gastrointestinal Surgery 2022年第4期14卷 370-373页

作者： Sonay Aydın erdal Karavas Duzgun Can Senbil Department of Radiology Erzincan Binali Yıldırım University Faculty of MedicineErzincan 24100Turkey

We read with interest the review by Teng et al,who summarized the current approach to the diagnosis and treatment of acute appendicitis(AA).Also,the article summarizes the clinical scoring systems very *** one of the previous studies conducted by our research group,we showed that the use of the Alvarado score,ultrasound and C-reactive protein values in combination provides a safe confirmation or exclusion of the diagnosis of *** tomography is particularly sensitive in detecting periappendiceal abscess,peritonitis and gangrenous *** tomography is not a good diagnostic tool in pediatric patients because of the ionizing radiation it *** is a valuable diagnostic tool to differentiate AA from lymphoid *** of fluid collection in the periappendiceal and lamina propria thickness less than 1 mm are the most effective parameters in differentiating appendicitis from lymphoid *** AA is the most common cause of surgical acute abdomen,it remains an important diagnostic and clinical *** combining clinical scoring systems,laboratory data and appropriate imaging methods,diagnostic accuracy and adherence to treatment can be *** hyperplasia and perforated appendicitis present significant diagnostic challenges in *** ultrasound findings are increasingly defined to differentiate AA from these conditions.

关键词： Acute appendicitis Inflammation Acute abdomen Perforation

Optimization of Electrical Conductivity of SA-graphene nanocomposites Using Response Surface Methodology

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chemical Research in Chinese Universities 2022年第2期38卷 596-602页

作者： HakanŞAHAL Gülben TORĞUT erdal CAnPOLAT Vocational School of Tunceli Department of Food ProcessingMunzur UniversityTunceli 62000Turkey Vocational School of Tunceli Department of Chemistry and Chemical ProcessesMunzur UniversityTunceli 62000Turkey Department of Elementary Science Education Faculty of EducationFirat UniversityElazig 23119Turkey

Synthesis and characterization of 4-{(E)-[(5-bromo-2-hydroxyphenyl)methylidene]amino}-n-carbamimidoylbenzene-1-sulfonamide(SA) and its composites with graphene(SA-GF) were performed. Compound SA and SA-GF were characterized by FTIR and 1H nMR. The GF dispersion in the composites was analyzed by means of scanning electron microscopy(SEM) for morphology. Thermal properties of SA and nanocomposites were investigated using differential thermal analysis(DTA) and thermogravimetric analysis(TGA). The optimum electrical conductivity of the new sulfonamide-based Schiff base was determined to be 1.78×10–5 S/cm at a frequency of 9923 Hz, an applied voltage of –19 V, a mass fraction of 9.38% for graphene loading using a central composite design in the response surface methodology. The significance of the selected parameters(frequency, voltage and GF amount) in the model was determined by the analysis of variance(AnOVA). The results showed that frequency and graphene loading represent important model terms and have considerable effects on the conductivity of SA.

关键词： Schiff base Sulfonamide Graphene Conductivity nanocomposite

Effect of colouring green stage zirconia on the adhesion of veneering ceramics with different thermal expansion coefficients

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 Oral Science 2013年第4期5卷 236-241页

作者： Guliz Aktas erdal Sahin Pekka Vallittu Mutlu zcan Lippo Lassila Department of Prosthodontics Faculty of DentistryHacettepe University Department of Biomaterials Science and Turku Clinical Biomaterials Centre University of Turku Dental Materials Unit Center for Dental and Oral MedicineClinic for Fixed and Removable Prosthodontics and Dental Materials ScienceUniversity of Zrich

This study evaluated the adhesion of zirconia core ceramics with their corresponding veneering ceramics, having different thermal expansion coefficients （TECs）, when zirconia ceramics were coloured at green stage. Zirconia blocks （n=240; 6 mm x 7 mm x 7 mm） were manufactured from two materials namely, ICE Zirconia （Group 1） and Prettau Zirconia （Group 2）. In their green stage, they were randomly divided into two groups. Half of the specimens were coloured with colouring liquid （shade A2）, Three different veneering ceramics with different TEC （ICE Ceramic, GC Initial Zr and IPS *** Ceram） were fired on both coloured and non-coloured zirconia cores. Specimens of high noble alloys （Esteticor Plus） veneered with ceramic （VM 13）（n= 16） acted as the control group. Core-veneer interface of the specimens were subjected to shear force in the Universal Testing Machine （0.5 mm-min-1）. neither the zirconia core material （P=0.318） nor colouring （P=0.188） significantly affected the results （three-way analysis of variance, Tukey＇s test）. But the results were significantly affected by the veneering ceramic （P=0.000）. Control group exhibited significantly higher mean bond strength values （45.7__.8） MPa than all other tested groups （（27.1__.4.1）-（39.7__.4.7） and （27.4__.5.6）-（35.9___4.7） MPa with and without colouring, respectively）（P^0.001）. While in zirconia-veneer test groups, predominantly mixed type of failures were observed with the veneering ceramic covering ~ 1/3 of the substrate surface, in the metal-ceramic group, veneering ceramic was left adhered 1/3 of the metal surface. Colouring zirconia did not impair adhesion of veneering ceramic, but veneering ceramic had a significant influence on the core-veneer adhesion. Metal-ceramic adhesion was more reliable than all zirconia-veneer ceramics tested.

关键词： adhesion bond strength colouring~ thermal expansion coefficient zirconia

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2023年第5期11卷 1031-1039页

作者： Fahri Aydin Mecit Kantarci Sonay Aydın erdal Karavaş Gökhan Ceyhun Hayri Ogul ÇağrıEminŞahin Suat Eren Department of Radiology Ataturk UniversityErzurum 25000Turkey Department of Radiology Erzincan Binali Yidirim UniversityErzincan 24000Turkey Department of Radiology Bandirma Onyedi Eylul UniversityBalikesir 10200Turkey Department of Cardiology Ataturk UniversityErzurum 25000Turkey General Directorate of Public Health Ministry of Health in TürkiyeAnkara 06100Turkey

BACKGROUnD no study on dual energy computed tomography(DECT)has been found in the literature to evaluate possibly fatal cardiac/myocardial problems in corona virus disease 2019(COVID-19)*** perfusion deficits can be found in COVID-19 patients even without any significant coronary artery occlusion,and these deficits can be shown via DECT with a perfect interrater *** To assess lung perfusion alterations in COVID-19 *** our knowledge,no study using DECT has been performed to evaluate possibly fatal cardiac/myocardial problems in COVID-19 *** purpose of this study is to evaluate the role of DECT in the detection of COVID-19-related cardiac *** Two blinded independent examiners evaluated CT images using the 17-segment model according to the American Heart Association’s classification of the segmentation of the left ventricular ***,intraluminal diseases and abnormalities in the main coronary arteries and branches were *** segment-by-segment analysis,perfusion deficiencies identified on the iodine map pictures on DECT were *** The study enrolled a total of 87 ***-two of these individuals were classified as COVID-19 positive,and 45 were classified as *** deficits were identified in 66.6%(n=30)of the *** control patients had a normal iodine distribution *** deficits were found on DECT iodine map images with subepicardial(n=12,40%),intramyocardial(n=8,26.6%),or transmural(n=10,33.3%)anatomical locations within the left ventricular *** was no subendocardial involvement in any of the *** Myocardial perfusion deficits can be found in COVID-19 patients even without any significant coronary artery *** deficits can be shown via DECT with a perfect interrater ***,the presence of perfusion deficit is positively correlated with D-dimer levels.

关键词： Dual energy computed tomography COVID-19 Heart Perfusion D-dimer

Type 2 dynamic curves: A diagnostic dilemma

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 Radiology 2022年第7期14卷 229-237页

作者： erdal Karavas Bunyamin Ece Sonay Aydın Department of Radiology Erzincan UniversityErzincan 24142Turkey Department of Radiology Kastamonu UniversityKastamonu 37150Turkey

BACKGROUnD Magnetic resonance imaging(MRI)with multiparametric dynamic contrast plays a critical role in the assessment of breast *** curves are a critical parameter in determining the benign or malignant nature of *** curves of type 1 are known to represent benign masses,while dynamic curves of type 3 are known to identify malignant *** 2 dynamic curves have a sensitivity of 42.6%and specificity of 75%for malignancy *** To investigate the pathological diagnosis of lesions with type 2 dynamic *** We evaluated breast MRI examinations performed between 2020 and 2021 retrospectively and included lesions with type 2 dynamic *** included 38 lesions from 33 *** lesions were evaluated for their pathological diagnosis and morphological *** Twenty-six lesions were malignant,while twelve were *** most frequently encountered benign lesion(7/12,58.3%)was sclerosing adenosis,while the most frequently encountered malignant diagnosis was invasive ductal *** presence of a type 2 dynamic curve had a sensitivity of 40.2%and specificity of 73.4%for predicting *** combining type 2 curves and morphological features,the sensitivity and specificity were *** The high rates of malignancy detected histopathologically among patients with type 2 dynamic curves in our study are *** 2 dynamic curves can be detected in benign breast masses,especially in sclerosing adenosis *** morphological features can increase the diagnostic accuracy in cases with type 2 dynamic curves.

关键词： Type 2 Dynamic curve Benign Malignant Breast Magnetic resonance imaging

Influence of H pylori on plasma ghrelin in patients without atrophic gastritis

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 Gastroenterology 2007年第10期13卷 1595-1598页

作者： Mehmet Cindoruk Ilhan Yetkin Serpil Muge Deger Tarkan Karakan erdal Kan Selahattin Unal Gazi University Faculty of Medicine Department of GastroenterologyAnkaraTurkey Gazi University Faculty of Medicine Department of Endocrinology and MetabolismAnkaraTurkey Gazi University Faculty of Medicine Department of Internal MedicineAnkaraTurkey

AIM:To determine the association between H pylori infection and serum ghrelin levels in patients without atrophic ***:Fifty consecutive patients(24 males and 26 females)with either H pylori-positive gastritis(n = 34)or H pylori-negative gastritis(n = 16)with normal gastric acid secretion determined by 24-h pHmetry and without atrophic gastritis in histopathology were enrolled in this ***-four H pylori-infected patients were treated with triple therapy consisting of a daily regimen of 30 mg lansoprazole bid,1 g amoxicillin bid and 500 mg clarithromycin bid for 14 d,followed by an additional 4 wk of 30 mg lansoprazol treatment.H pylori infection was eradicated in 23 of 34(67.6%)patients.H pylori-positive patients were given eradication *** acidity was determined via intragastric pH *** ghrelin was measured by radioimmunoassay(RIA).RESULTS:There was no signifficant difference in plasma ghrelin levels between H pylori-positive and H pylori-negative groups(81.10 ± 162.66 ng/L vs 76.51 ± 122.94 ng/L).In addition,there was no significant difference in plasma ghrelin levels and gastric acidity levels measured before and 3 mo after the eradication ***:H pylori infection does not influence ghrelin secretion in patients with chronic gastritis without atrophic gastritis.

关键词： H pylori Ghrelin Gastric acidity Gtrophic gastritis

Chronic otitis media and middle ear variants:Is there relation?

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 Clinical Cases 2023年第15期11卷 3481-3490页

作者： Fatma Dilek Gokharman Düzgün Can Senbil Sonay Aydin erdal Karavas Ozge Ozdemir Arzu Gülsah Yalcin Pınar nercis Kosar Department of Radiology Ankara Training and Research HospitalAnkara 06230Turkey Department of Radiology Erzincan Binali Yildirim UniversityErzincan 24100Turkey Department of Radiology Bandırma 17 Eylül UniversityBalıkesir 10200Turkey

BACKGROUnD Chronic otitis media(COM)is an inflammatory disease that lasts for a long *** is common in developing *** loss can result from *** relationship between variations in middle ear anatomy and COM was investigated in our *** To compare the prevalence of middle ear anatomic variations between the cases with COM and healthy *** This retrospective study included 500 patients with COM and 500 healthy *** presence of those variants was determined:Koerner’s septum,facial canal dehiscence,high jugular bulb,jugular bulb dehiscence,jugular bulb diverticulum,sigmoid sinus anterior location and deep tympanic *** A total of 1000 temporal bones were *** incidences of these variants were respectively(15.4%-18.6%),(38.6%-41.2%),(18.2%-4.6%),(2.6%-1.2%),(1.2%-0%),(8.6%-0%),(0%-0%).It was observed that only high jugular bulb(Pnd anteriorly located sigmoid sinus frequencies(P=0.002)in the case group were statistically significantly higher than the control *** COM is a multifactorial disease and variants of middle ear have always been important in terms of potential risk for complication during surgery but rarely associated with COM as an etiology or as a consequence of the *** didn't find a positive correlation between COM and Koerner’s septum and facial canal *** ended up with a significant conclusion with the variants of dural venous sinuses-high jugular bulb,dehiscence of jugular bulb,diverticulum of jugular bulb and anteriorly located sigmoid sinus-that have been studied less and frequently associated with inner ear illnesses.

关键词： Chronic otitis media Radiology Inflammation Hearing loss Mastoid cells Head and neck