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Qualitative behavior of discrete-time Caputo-Fabrizio logistic model with Allee effect

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International Journal of Biomathematics 2024年第4期17卷 217-234页

作者： hatice Karakaya Senol Kartal ilhan Oztirk Department of Mathematics Faculty of Science Erciyes UniversityKayseriTurkey Department of Science and Mathematics Education Faculty of Education Nevsehir Haci Bektas Veli University NevsehirTurkey Kapadokya University NevsehirTurkey

The aim of this paper is to investigate the dynamic behaviors of fractional-order logistic model with Allee effects in Caputo-Fabrizio *** of all,we apply the two-step Adams-Bashforth scheme to discretize the fractional-order logistic differential equation and obtain the two-dimensional discrete *** parametric conditions for local asymptotic stability of equilibrium points are obtained by Schur-Chon ***,we discuss the existence and direction for Neimark-Sacker bifurcations with the help of center manifold theorem and bifurcation *** simulations are provided to illustrate theoretical *** is observed that Allee effect plays an important role in stability *** Allee effect in population enhances the stability of the coexisting steady *** additional,the effect of fractional-order derivative on dynamic behavior of the system is also investigated.

关键词： Caputo-Fabrizio fractional derivative two-step Adams-Basforth method logistic differential equation Neimark-Sacker bifurcation Allee effect

Automated evaluation of parapapillary choroidal microvasculature in crowded optic discs:a controlled,optical coherence tomography angiography study

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International Journal of Ophthalmology(English edition) 2024年第1期17卷 113-118页

作者： hatice Arda Hidayet Sener Ozge Temizyurek hatice Kubra Sonmez Duygu Gulmez Sevim Cem Evereklioglu Fatih Horozoglu Ayse Busra Gunay Sener Department of Ophthalmology Erciyes University Medical FacultyKayseri 38090Turkey Department of Medical Informatics and Biostatistics Erciyes University Medical FacultyKayseri 38090Turkey

AIM:To compare superficial and deep vascular properties of optic discs between crowded discs and controls using optical coherence tomography angiography(OCT-A).METHODS:Thirty patients with crowded discs,and 47 control subjects were enrolled in the *** eye of each individual was included and OCT-A scans of optic discs were obtained in a 4.5×4.5 mm^(2) rectangular *** peripapillary capillary(RPC)density,peripapillary retinal nerve fiber layer(pRNFL)thickness,cup volume,rim area,disc area,cup-to-disc(c/d)area ratio,and vertical c/d ratio were obtained automatically using device *** parapapillary choroidal microvasculature(PPCMv)density was calculated using MATLAB *** the vertical c/d ratio of the optic disc was absent or small cup,it was considered as a crowded ***:The mean signal strength index of OCT-A images was similar between the crowded discs and control eyes(P=0.740).There was no difference in pRNFL between the two groups(P=0.102).There were no differences in RPC density in whole image(P=0.826)and peripapillary region(P=0.923),but inside disc RPC density was higher in crowded optic discs(P=0.003).The PPCMv density in the inner-hemisuperior region was also lower in crowded discs(P=0.026).The pRNFL thickness was positively correlated with peripapillary RPC density(r=0.498,P<0.001).The inside disc RPC density was negatively correlated with c/d area ratio(r=-0.341,P=0.002).CONCLUSION:The higher inside disc RPC density and lower inner-hemisuperior PPCMv density are found in eyes with crowded optic discs.

关键词： crowded optic disc ischemic optic neuropathy optical coherence tomography angiography parapapillary choroidal microvasculature

Benthic foraminiferal assemblages from the Safranbolu Formation(Cuisian,Eocene),Northwest Anatolia,Turkey

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Journal of Palaeogeography 2020年第1期9卷 21-41页

作者： Kubra Okur hatice Kutluk Department of Geology Eskisehir Osmangazi UniversityBati Meselik26480 EskisehirTurkey

Twenty-one outcrop samples collected from a 28-m-thick section from the Safranbolu Formation of the southwestern part of the Safranbolu Basin,Anatolia,Turkey yielded well-preserved benthic foraminifera belonging mainly to the genera Alveolina,Nummulites,Assilina,Rotalia,Disclocyclina and *** is the most diversified genus that is represented by sixteen species:Alveolina archiaci,***,***,***,***,***,***,***,***,***,***,*** gueroli,***,***,*** and *** safranboluensis and *** are described *** of the fossil assemblage with those assemblages previously reported from both Turkey and other Tethyan sub-basins revealed that the deposition occurred during the Cuisian(Eocene)and corresponded to Shallow Benthic Foraminiferal Zones(SBFZ)10–*** abundance and diversity of the larger benthic foraminifera indicated that the Safranbolu Formation was deposited under transgressive conditions.

关键词： Eocene Cuisian Safranbolu Formation Benthic foraminifera Alveolina Northwest Anatolia

Pollen Morphology of Acinos Miller Species Growing in Turkey

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Journal of Integrative Plant Biology 2007年第9期49卷 1386-1392页

作者： Ayla Kaya hatice Kutluk Anadolu University Faculty of PharmacyDepartment of Pharmaceutical BotanyEskisehir 26470 Turkey Osmangazi University Department of Geology (Paleobotany)Bati Meselik Eskisehir 26040 Turkey

The pollen morphology of six taxa of the genus Acinos Miller has been examined under scanning electron microscopy （SEM） and a description of each taxon has been given. Acinos pollen is stephanocolpate （hexacolpate）. Two main exine sculpturing types, foveolate-reticulate （only in subspecies of A. troodi） and reticulate have been defined. The dimension for the polar length ranges between 25.8-47.4 μm, equatorial width 24.5-34.4μm, colpus length 20.0-40.5μm and colpus width 1.2-2.5 μm. The shape is mostly subprolate to prolate, seldomly prolate-spheroidal. The results reveal rather uniform morphological features, however fine details are characteristic to differentiate the pollen taxa. Acinos pollen also share some common morphological features with the other Lamiaceae pollen.

关键词： Acinos Lamiaceae morphology polen scanning electron microscopy.

Efects of Die Corner Radius and Temperature on the Formability of AA7075-T6 Alloy

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Acta Metallurgica Sinica(English Letters) 2013年第5期26卷 623-629页

作者： hatice Evlen brahim Kad Mustafa Ya sar Technology Faculty Karabuk University

This study focused on the formability of aluminium alloy（7075-T6） sheets through hydroforming route. Formability of these sheets was tested using a warm forming setup at three diferent temperatures and four diferent die corner radii. Forming limit diagrams（FLD） were generated by measuring the grids of the sheet formed. The results show that the forming limit of AA7075-T6 can be significantly improved when the blank was heated to 140–250℃. It was also observed that as the temperature increases above 140℃, dome height began to decrease. Also the results indicated that both the die corner radius and temperature have a significant efect on the stress-strain curve and warm forming of AA7075-T6 sheets. Thus, with the temperature increased from room temperature（RT） to 140℃, the flow stress decreased and the strain increased, hence, the formability is enhanced. However, further increase in temperature causes decreases the flow stress and strain. Similar changes of the flow curve were seen in die corner radius. Decreasing the die corner radius decreases the flow stress and increase the strain. Moreover, an equation was obtained by establishing correlations between the experimental parameters and their results. In this way, it became possible to make predictions.

关键词： Al-Zn-Mg-Cu Alloy Drawing process Formability Forming limit curve Deformation

Factors Affecting Internet Banking Adoption: An Application of Adaptive LASSO

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Computers, Materials & Continua 2022年第9期72卷 6167-6184页

作者： hatice Jenkins Siamand Hesami Fulden Yesiltepe Department of Banking and Finance Eastern Mediterranean UniversityFamagustaMersin 1099628Turkey Finnprints Inc. LefkosaMersin 10Turkey

This research investigates a broad range of possible factors affecting the adoption of new technology in the banking industry using adaptive LASSO and a standard logit *** research integrated the adoption of the innovation framework and the technology acceptance theory to develop a conceptual framework for the *** data was collected from 400 bank customers in North *** perception and other customerspecific factors such as perceived risk index and negative attitude toward new technologies index were formulated for the proposed conceptual *** findings indicated that individuals with a negative attitude toward new technology are least likely to adopt internet *** addition,the logit model suggested that age,education level,and general(innate)innovativeness significantly impact the adoption of internet ***,gender,income,occupation,perceived risk,familiarity with the internet,and social inclusion have no significant impact on internet banking adoption in North Cyprus.

关键词： E-banking business technology internet banking adoption adaptive LASSO method

Global existence and decay of solutions for the generalized bad Boussinesq equation

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Applied Mathematics(A Journal of Chinese Universities) 2013年第3期28卷 253-268页

作者： hatice Taskesen Necat Polat Abdulkadir Ertas Department of Statistics Yuzuncu Yil UniversityVan 65080 Turkey Department of Mathematics Dicle UniversityDiyarbakir 21280 Turkey

In this paper, we consider the global existence of solutions for the Cauchy problem of the generalized sixth order bad Boussinesq equation. Moreover, we show that the supremum norm of the solution decays algebraically to zero as （1 ＋ t）-（1/7） when t approaches to infinity, provided the initial data are sufficiently small and regular.

关键词： bad Boussinesq equation global existence asymptotic behavior oscillatory integral.

Protective Effects of Lycopene on Furan-treated Diabetic and Non-diabetic Rat Lung

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Biomedical and Environmental Sciences 2016年第2期29卷 143-147页

作者： hatice BAS Dilek PANDIR Bozok University Faculty of Arts and Science Department of Biology 66100 Yozgat Turkey

We assessed the effects of furan and lycopene on the histopathological and biochemical changes on lungs, body and lung weights, and food consumption of rats. Furan and diabetes caused histopathological changes, increment in malondialdehyde levels, and decrease in antioxidant enzyme activities. Lycopene showed a protective effect against these damages, except for glutathione-S-transferase and glutathione peroxidase activities. Consequently, furan and diabetes resulted in lung toxicity. Our findings demonstrate that furan treatment resulted in more alterations in histology and biochemical parameters in diabetic rats and lycopene showed protective effects against these alterations.

关键词： Protective Effects Lycopene Furan-treated Diabetic

跨学科讲座中的元话语特性:深入解读EAP笔记的实质内涵

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Chinese Journal of Applied Linguistics 2024年第2期47卷 332-363,366页

作者：哈蒂斯·塞兹金埃切·泽希尔·托普卡亚塞尔柱克大学外国语学院土耳其恰纳卡莱马特大学英语教学系土耳其

学术讲座作为高等院校学生获取知识的主要途径之一,对学生而言具有不可或缺的重要性。为了确保学生能够充分吸收讲座内容,做笔记成为了一项至关重要的技能。事实上,记笔记的能力以及笔记的质量与学生的学习成绩之间存在着密切的关联。因... 详细信息

学术讲座作为高等院校学生获取知识的主要途径之一,对学生而言具有不可或缺的重要性。为了确保学生能够充分吸收讲座内容,做笔记成为了一项至关重要的技能。事实上,记笔记的能力以及笔记的质量与学生的学习成绩之间存在着密切的关联。因此,在EAP课程中,记笔记教学被视为一个不可或缺的组成部分,旨在培养学生良好的笔记习惯,从而助力他们取得更好的学术成绩。本研究旨在构建一个基于体裁的教学框架(Genre-Based Instruction,GBI),用于指导笔记教学的实践。为实现这一目标,本研究对八个跨学科讲座进行了深入分析。首先,我们依据Bouziri(2020)所建立的框架,对修辞功能进行了明确界定。随后,我们采纳了?del(2010)与Hyland(2005)共同提出的元话语框架,并据此确定了体现组织结构的元话语要素。经过深入研究,我们发现了修辞功能与元话语要素之间存在紧密的关联。也就是说,某些元话语项目可以作为使用某些修辞功能的信号。因此,记笔记的GBI框架是根据修辞功能与元话语要素之间的关联而构建的。

关键词：体裁跨学科学术讲座元话语笔记记录