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△_(h)-GOULD-HOPPER APPELL POLYNOMIALS

Acta Mathematica Scientia 2021年第4期41卷 1196-1222页

作者： Mehmet Ali ÖZARSLAN banu yilmaz yasar Department of Mathematics Eastern Mediterranean UniversityFamagustaNorth Cyprus via Mersin 10Turkey

In this paper,we introduce the △_(h)-Gould-Hopper Appell polynomials An(x,y;h)via h-Gould-Hopper polynomials G_(n)^(h)(x,y).These polynomials reduces to △_(h)-Appell polynomials in the case y=0,△-Appell polynomials in the case y=0 and h=2D-Appell polynomials in the case h→0,2D △-Appell polynomials in the case h=1 and Appell polynomials in the case h→0 and y=*** obtain some well known main properties and an explicit form,determinant representation,recurrence relation,shift operators,difference equation,integro-difFerence equation and partial difference equation satisfied by *** satisfied by △_(h)-Gould-Hopper Appell polynomials reduce to determinant of all subclass of the usual ***,shift operators and difference equation satisfied by these polynomials reduce to recurrence,shift operators and difference equation of △_(h)-Appell polynomials,△-Appell polynomials;recurrence,shift operators,differential and integro-differential equation of 2D-Appell polynomials,recurrence,shift operators,integrodifference equation of 2D △-Appell polynomials,recurrence,shift operators,differential equation of Appell polynomials in the corresponding *** the special cases of the determining functions,we present the explicit forms,determinants,recurrences,difference equations satisfied by the degenerate Gould-Hopper Carlitz Bernoulli polynomials,degenerate Gould-Hopper Carlitz Euler polynomials,degenerate Gould-Hopper Genocchi polynomials,△_(h)-Gould-Hopper Boole polynomials and △_(h)-Gould-Hopper Bernoulli polynomials of the second *** particular cases of the degenerate Gould-Hopper Carlitz Bernoulli polynomials,degenerate Gould-Hopper Genocchi polynomials,△_(h)-Gould-Hopper Boole polynomials and △_(h)-Gould-Hopper Bernoulli polynomials of the second kind,corresponding determinants,recurrences,shift operators and difference equations reduce to all subclass of degenerate so-called families except for Genocchi polynomials recurrence,shift operators,an

关键词： △_(h)-Appell polynomials determinant recurrence difference equation

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Drag pick cutting tests: A comparison between experimental and theoretical results

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Journal of Rock Mechanics and Geotechnical Engineering 2018年第5期10卷 893-906页

作者： Serdar yasar Ali Osman yilmaz Department of Mining Engineering Karadeniz Technical University

This paper aims at reporting the results of a number of drag pick cutting tests on selected igneous rock samples to compare the experimentally determined maximum cutting force （FC） values with theoreti- cally estimated ones. First, a review on theoretical rock cutting models proposed for both chisel and conical picks was presented in detail. Experimental study consists of both chisel and conical pick cutting tests in unrelieved （single-pick） cutting mode with varying cutting depths. FC＇ values were determined from experimental results, and theoretical models were utilized to compute FC for all cutting conditions. Computed and experimentally determined F（ data were then compared for a referenced cutting depth. It is shown that the theoretical models might overestimate or underestimate FC＇ and cannot give reliable results. Finally, explanations for these mismatches were presented.

关键词： Rock cutting mechanics Rock cutting tests Vertical rock cutting rig (VRCR) Cutting force Rock cutting theories

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Selection of promising chestnuts(Castanea sativa) among wild growing trees from southern Mediterranean region forests of Turkey

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Journal of Forestry Research 2016年第2期27卷 349-355页

作者： yilmaz Ormeci yasar Akca Sezai Ercisli Department of Horticulture Agriculture FacultyGaziosmanpasa University Department of Horticulture Agriculture Faculty Ataturk University

Turkey ranked third place in the world for chestnut production after China and South Korea and the country has unique chestnut forests including valuable and diverse chestnut genotypes. This study was conducted to select superior chestnut genotypes within seedling popu- lations found in natural wild grown chestnut forest located in Isparta province in Turkey during 2010-2011 years. A total of 2500 wild grown chestnut trees were examined on the field first year and among them the most promising 22 genotypes were chosen according to relatively high yield capacity, earliness, tolerance to chestnut blight （Cryphonectria parasitica）, ink disease （Phytopthora cambivora）, and fruit quality characteristics. The selected 22 genotypes were evaluated for their detailed morpho- logical, phenological and pomological traits in 2010 and 2011. According to average of 2 years, nut weight, the number of nut per kilogram, nut width, nut length, nut height and nut shell thickness of 22 promising genotypes ranged from 10.26 to 22.32 g, 97.47 to 44.80/kg, 26.80 to 42.47, 16.92 to 25.91, 27.74 to 39.73, and 0.26 to 1.01 mm, respectively. The ash, crude protein, and total fat content of kernels were between 0.85 to 1.94, 3.69 to 7.06 and 1.32 to 4.52, respectively. The genotypes were evaluated with weighted ranking method and the highest general quality score was observed in genotypes of IY17, IYO1, IY42, IY43 and IY12.

关键词： Castenea sativa Mill. Forest fruits Selection Tree breeding

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Comparison of scanning electron microscopy findings regarding biofilm colonization with microbiological results in nasolacrimal stents for external, endoscopic and transcanalicular dacryocystorhinostomy

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International Journal of Ophthalmology(English edition) 2014年第3期7卷 534-540页

作者： Melike Balikoglu-yilmaz Tolga yilmaz Sule Cetinel Umit Taskin Ayse banu Esen Muhittin Taskapili Timur Kose Department of Ophthalmology Bagcilar Education and Research Hospital Department of Histology & Embryology Marmara UniversityFaculty of Medicine Department of Otorhinolaryngology Bagcilar Education and Research Hospital1Istanbul 34200 Turkey Department of Microbiology and Clinical Microbiology Bagcilar Education and Research Hospital Department of Biostatistics and Medical Informatics Ege University Faculty of Medicine

AIM:To compare bacterial biofilm colonization in lacrimal stents following external dacryocystorhinostomy(EX-DCR),endoscopic dacryocystorhinostomy(EN-DCR),and transcanalicular dacryocystorhinostomy(TC-DCR)with multidiode ***:This prospective study included 30consecutive patients with nasolacrimal duct obstruction who underwent EXT-,EN-,or *** removed lacrimal stent fragments and conjunctival samples were *** lacrimal stent biofilms were examined by scanning electron microscopy(SEM).RESULTS:Eleven(36.7%)of the 30 lacrimal stent cultures were positive for aerobic bacteria(most commonly Staphylococcus epidermidis and Pseudomonas aeruginosa).However anaerobic bacteria and fungi were not identified in the lacrimal stent ***-seven(90%)patients had biofilmpositive lacrimal *** conjunctival culture positivity after the DCR,biofilm positivity on stents,the grade of biofilm colonization,and the presence of mucus and coccoid and rod-shaped organisms did not significantly differ between any of the groups(P>0.05).However,a significant difference was found when the SEM results were compared to the results of the lacrimal stent and conjunctival cultures(P<0.001).CONCLUSION:Type of dacryocystorhinostomy(DCR)surgery did not affect the biofilm colonization of the lacrimal *** also appears to be more precise than microbiological culture for evaluating the presence of biofilms on lacrimal stents.

关键词： biofilms nasolacrimal duct obstruction epiphora dacryocystitis scanning electron microscopy

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Serum vascular endothelial growth factor receptor-2 and adropin levels in age-related macular degeneration

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International Journal of Ophthalmology(English edition) 2016年第4期9卷 556-560页

作者： Nurgül rnek Kemal rnek Süleyman Aydin Musa yilmaz yasar lmez Department of Ophthalmology School of MedicineKirikkale University Department of Biochemistry School of Medicine Firat University

AIM： To investigate the serum levels of vascular endothelial growth factor receptor-2（VEGFR-2） and adropin in age-related macular degeneration（AMD）patients.·METHODS： Ninety-eight AMD patients were included in the study. Seventy-eight age- and sex-matched healthy volunteers were recruited as the control *** florescein angiography and optical coherence tomography were performed to assess the posterior segment details. Serum VEGFR-2 and adropin levels were measured using enzyme-linked immunosorbent assays and compared between the study groups.· RESULTS： AMD group had significantly increased foveal retinal thickness, serum LDL and HDL levels and significantly decreased subfoveal choroidal thickness（P =0.01, 0.047, 0.025 and 〈0.001, respectively）. Serum VEGFR-2level revealed a significant decrease in AMD patients compared to controls（26.48 ±6.44 vs 30.42 ±7.92 ng/m L,P 〈0.001）. There was an insignificant increase in serum adropin level in AMD patients（6.17±3.19 vs 5.79±2.71 ng/m L,P =0.4）. Serum level of VEGFR-2 in AMD patients had a significant negative correlation with foveal retinal thickness（r =-0.226, P =0.025） and a significant positive correlation with subfoveal choroidal thickness（r=0.2, P=0.048）.·CONCLUSION： The current study demonstrated that the decreased serum VEGFR-2 level may be considered in the development of AMD. Adropin does not seem to play a role in the pathogenesis of AMD.

关键词： vascular endothelial growth factor receptor-2 adropin age-related macular degeneration

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Association of human leukocyte antigen DQB1 and DRB1 alleles with chronic hepatitis B

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World Journal of Gastroenterology 2014年第25期20卷 8179-8186页

作者： Levent Doganay Arta Fejzullahu Seyma Katrinli Feruze yilmaz Enc Oguzhan Ozturk yasar Colak Celal Ulasoglu Ilyas Tuncer Gizem Dinler Doganay Department of Gastroenterology Goz-tepe Teaching and Research HospitalMedeniyet University Department of Gastroen-terology Umraniye Teaching and Research Hospital Department of Molecular Biology and Genetics Istanbul Tech-nical University

AIM: To investigate the effect of human leukocyte antigen (HLA) DRB1 and DQB1 alleles on the inactive and advanced stages of chronic hepatitis B.

关键词： Chronic active hepatitis Cirrhosis Hepatitis B Human leukocyte antigen DQ Human leukocyte antigen DR

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Assessment on self-care, mobility and social function of children with spina bifida in Turkey

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Neural Regeneration Research 2014年第12期9卷 1234-1240页

作者： Hulya Sirzai Beril Dogu Selamet Demir Figen yilmaz banu Kuran Ankara Physical Medicine and Rehabilitation Education and Research Hospital Department of Physical Medicine and Rehabilitation Sisli Etfal Education and Research Hospital

The aim of the study was to investigate the functional performance in children with spina bifida, using the Pediatric Evaluation of Disability Inventory （PEDI） to look into capacity of twen- ty-eight children with spina bifida with lesions at different levels in different dimensions of self- care, mobility and social function. Mean age of the patients was 3.5 ± 2.3 （1-10） years. In the muscle test carried out, 13 patients （44.8%） had no movements including pelvic elevation in lower extremity muscles and they were at level 5. Sixteen patients （54%） were non-ambulatory according to the Hoofer ambulation classification. Raw and scale scores in the self-care, mobil- ity and social function domains both in the functional skill scale and in the caregiver scale were found to be lower compared to the data of the normal population. A statistically significant correlation was observed in the self-care values of the Functional Skills Scales and the Caregiver Assistance Scale measurements, which was positive for age and negative for Functional Ambu- lation Scale and muscle test （P 〈 0.05）. A positive relation was found between the Functional Skills Scales-mobility area and age while a negative relation was observed between Functional Ambulation Scale and muscle test （P 〈 0.005）. A negative relation was also found between Care- giver Assistance Scale-mobility and Functional Ambulation Scale and muscle test （P 〈 0.005）. In our study, the functional performance of the children was found to be low. Low-level lesions, encouraging muscular strength and independence in mobility are all very important factors for functional independence.

关键词： nerve regeneration spina bifida myelomeningocele disability evalutatton self-care mobility muscular energy child social function neural regeneration

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A case of solid pseudopapillary tumor of the pancreas

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World Journal of Gastroenterology 2006年第38期12卷 6239-6243页

作者： Ozan Karatag Gulden Yenice Huseyin Ozkurt Muzaffer Basak Can Basaran banu yilmaz Department of Radiology Sisli Etfal Education and Research Hospital Istanbul Turkey Department of Surgery Sisli Etfal Education and Research Hospital Istanbul Turkey Department of Pathology Sisli Etfal Education and Research Hospital Istanbul Turkey

We present ultrasound, computed tomography and magnetic resonance imaging findings in a case with pancreatic solid pseudopapillary tumor and their correlations with histopathology. Ultrasound revealed a hypoechogenic mass, and computed tomography revealed a hypodense mass at the pancreatic head minimally enhanced after intravenous contrast agent administration. Magnetic resonance imaging showed a hypointense mass on unenhanced Tl-weighted images including a hyperintense focus representing the hemorrhage. The lesion was hyperintense on T2- weighted images. On the postcontrast images the lesion showed peripheral thin contrast enhancement in arterial phase and enhanced slightly diffusely in venous and equilibrium phases. The patient underwent elective resection of the mass and pancreatoduodenectomy with jejunostomy tube placement. A final diagnosis of solid pseudopapillary tumor was made histoPathologically. Solid pseudopapillary tumor is a rare pancreatic tumor. It is important to make the diagnosis preoperatively because with an adequate surgical resection the prognosis is good. A multimodalitary approach, especially magnetic resonance imaging can suggest the diagnosis without the need for biopsy.

关键词： Pancreas Solid pseudopapillary tumor Magnetic resonance imaging Computed tomography Ultrasound

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Effect of Peripheral Arterial Disease on Serum Ischemia-Modified Albumin Levels in Type 2 Diabetic Patients

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World Journal of Cardiovascular Surgery 2014年第5期4卷 81-86页

作者： Tugra Gencpinar Umut Ayoglu Koray Aykut Gokhan Albayrak Hamid yasar Ellidag Muzaffer yilmaz Kadir Sagdic Mustafa Emmiler Cardiovascular Surgery Clinic Education and Research HospitalAntalyaTurkey Department of Cardiovascular Surgery Izmir UniversityIzmirTurkey Department of Biochemistry Education and Research HospitalAntalyaTurkey

Background: The aim of this study is to evaluate the role of IMA and the effect of Type-2 diabetes in peripheral arterial ischemic patient. Methods: In our study, randomized patient groups to be undergone peripheral surgery, consisting of 16 diabetic and 12 non-diabetic patients diagnosed with peripheral arterial disease, have been examined. After standard anesthesia, the surgery was performed by the same surgical team, blood samples were taken before and after cross-clamp, and the levels of ischemia modified albumin (IMA), which is a new ischemic marker, were studied spectrophotometrically. Demographic data were compared with the type-2 diabetes association. Results: In this study, we found that there were no correlation with the ankle brachial index (ABI) and risk factors of diabetes between postoperative IMA levels (P: 0.47). Preoperative IMA serum blood levels were significantly higher in patients with peripheral arterial disease (P: 0.70), and positively associated with ABI (diabetic group P: 0.04, non-diabetic group P: 00). Also, no correlation was found with X clamp times, ABI, and IMA blood levels (P: 0.30). In diabetic group, ischemia marker increase was high and there was a positive correlation between HbA1c levels (P: 0.002). Conclusion: Our study suggested that, preoperative serum IMA levels were positively associated with ABI. In diabetic group, the increase in IMA levels was high and there was positive correlation between HbA1c levels. IMA was a benefit marker for monitoring and early diagnosis of the peripheral arterial disease.

关键词： Artery Diabetes Mellitus Ischemia IMA

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Increased serum soluble lectin-like oxidized low-density lipoprotein receptor-1 levels in patients with biopsy-proven nonalcoholic fatty liver disease

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World Journal of Gastroenterology 2015年第26期21卷 8096-8102页

作者： Oguzhan Ozturk yasar Colak Ebubekir Senates Yusuf yilmaz Celal Ulasoglu Levent Doganay Seyma Ozkanli Yasemin Musteri Oltulu Ender Coskunpinar Ilyas Tuncer Department of Gastroenterology Goztepe Teaching and Research HospitalIstanbul Medeniyet University Department of Gastroenterology Marmara University School of MedicineIstanbulTurkey Institute of Gastroenterology Marmara University Department of Pathology Goztepe Teaching and Research HospitalIstanbul Medeniyet University Department of Molecular Medicine Institute of Experimental Medicine ResearchIstanbul University

AIM: To analyze the relationship between the serum lectin-like oxidized low-density lipoprotein receptor-1(LOX-1) levels and clinical and histopathological features of biopsy-confirmed nonalcoholic fatty liver disease(NAFLD) ***: Fifty-three consecutive,biopsy-proven NAFLD patients(31 males and 22 females,mean age 42.5 ± 9.6 years) and 26 age- and gender-matched,healthy controls(14 males and 12 females,mean age 39 ± 10.7 years) were *** patientswith NAFLD were consecutive patients who had been admitted to the hepatology outpatient clinic within the last year and had been diagnosed with NAFLD as the result of liver *** healthy controls were individuals who attended the outpatient clinic for routine health control and had no known chronic *** histological evaluation was conducted according t o t he N AF LD ac t ivi ty scoring syst em recommended by The National Institute of Diabetes and Digestive and Kidney Diseases Nonalcoholic Steatohepatitis Clinical Research *** serum LOX-1 levels were measured using an ELISA kit(Life Science ***,Catalog No.E1859Hu) in both patients and healthy controls.A receiver operating characteristic(ROC) curve analysis was used to identify the optimal cutoff value of LOX-1 and thereby distinguish between patients with nonalcoholic steatohepatitis(NASH) and healthy controls.A P-value < 0.05 was considered statistically ***: NAFLD and healthy control groups were similar in terms of age and *** patients consisted of 8 patients with simple steatosis(15%),27 with borderline NASH(51%) and 18 with definitive NASH(34%).Metabolic syndrome was found in 62.2% of the patients with *** mean serum LOX-1 level in biopsy-proven NAFLD patients was 8.49 ± 6.43 ng/m L compared to 4.08 ± 4.32 ng/m L in healthy controls(P = 0.001).The LOX-1 levels were significantly different between controls,simple steatosis and NASH(borderline+definite) cases(4.08 ± 4.32 ng/m L,6.1 ± 6.16 ng/

关键词： Insulin resistance Liver fibrosis Metabolicsyndrome Nonalcoholic fatty liver disease Steatohepatitis

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