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Journal of Integrative Nursing 2023年第1期5卷 27-32页

作者： ayşe taştekin ouyaba Şehadet taŞKIN Obstetrics and Gynecology Nursing Faculty of Health SciencesAfyonkarahisar Health Sciences UniversityAfyonkarahisarTurkey Department of Nursing Balıklıgöl State HospitalSanliurfaTurkey

Background:Risk perception and COVID‑19 anxiety in pregnant women restrict access to health services,cause pregnant women to resort to alternative channels such as the Internet,and affect prenatal care quality(PCQ)***:The purpose of this study was to examine the effect of risk perception and COVID‑19 anxiety in pregnancy on decision‑making via the Internet(DMI)and PCQ with multivariate *** and Methods:This cross‑sectional study was conducted with 406 pregnant women selected using the convenience sampling method in a training and research hospital,in *** data were collected using the information form,the perception of pregnancy risk questionnaire,the Coronavirus Anxiety Scale,the DMI Scale,and the PCQ *** data obtained were subject to descriptive analysis and the multivariate analysis of ***:Approximately 24.9%of the pregnant women were found to have a high perception of risk and 18%had symptoms of COVID‑19 *** women with high COVID‑19 anxiety and a higher perception of risk perceived the Internet as less influential for decision‑making(Pegnant women with a high‑risk perception had lower PCQ(Pe findings can be used to enhance mental health and resilience in pregnant women and to formulate appropriate intervention strategies.

关键词： COVID-19 anxiety decision-making via the Internet perception of risk pregnancy prenatal care quality

DNA damage-induced by sodium flouride (NaF) and the effect ofcholicalciferol

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BIOCeLL 2020年第2期44卷 263-268页

作者： VeYSeL YÜKSeK SeMIHA DeDe ayŞe USta SeDATÇeTIN MeHMeT taŞPINAR Van Yuzuncu Yil UniversityÖzalp Vocational High School VanTurkey Department of Biochemistry Faculty of Veterinary MedicineVanYuzuncu Yil UniversityVanTurkey Department of Chemistry Faculty of ScienceVanYuzuncu Yil UniversityVanTurkey Department of Medical Biology Faculty of MedicineVanYuzuncu Yil UniversityVanTurkey

It is known that the high electronegativity of fluorine affects various soft tissues,especially the bone structure in *** these tissues are the kidneys,which play an important role in the excretion of fluoride from the *** affects many cellular *** of these effects is DNA *** study aimed to investigate the likely protective effect of cholecalciferol(vitamin D3)on genomic DNA damage-induced NaF depending on concentration and *** IC25 and IC50 values of NaF for 3,12 and 24 h and optimum dose of increase in proliferation to vitamin D3 through MTT assay in NRK-52e kidney cells were *** damage was significantly increased(ped to the control group in all groups except for vitamin *** was determined that treatment with NaF together with vitamin D3 decreased the DNA damage compared to NaF treated groups for 3 and 12 *** combined with vitamin D3 was determined statistically to decrease(pe compared to NaF treated groups for 24 *** a result,it was determined that the treatment with cytotoxic concentration NaF depending on the time significantly increased(pe genomic DNA damage,but NaF treatment together with vitamin D3 decreased the DNA damage in renal cells depending on the *** was concluded that vitamin D3 may be useful in preventing DNA damage caused by NaF.

关键词： NaF DNA damage Vitamin D3 Comet assay

一种基于FL-TransCNN神经网络的水声智能频谱感知算法

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电讯技术 2025年

作者：李玉芳王锴张力良徐凌伟 Gulliver ta 青岛科技大学信息科学技术学院数字化学习技术集成与应用教育部工程研究中心加拿大维多利亚大学电子与计算机工程学院

海洋通信装备间产生的海量数据导致水声频谱资源紧张，亟需提高水声频谱利用率以满足信息传递需求。因此，一种基于联邦学习（Federated Learning， FL）、Transformer和卷积神经网络（Convolutional Neural Networks， CNN）的水声智... 详细信息

海洋通信装备间产生的海量数据导致水声频谱资源紧张，亟需提高水声频谱利用率以满足信息传递需求。因此，一种基于联邦学习（Federated Learning， FL）、Transformer和卷积神经网络（Convolutional Neural Networks， CNN）的水声智能频谱感知算法被提出，以提高频谱利用率。首先，基于FL实现数据隔离状态下的信息共享，并应用Paillier加密技术进行权重加密保障。其次，本地感知数据经连续小波变换构建为时频谱图。最后，融合CNN与Transformer构建了TransCNN感知器，通过并行分支实现了高精度感知。TransCNN感知器包含预处理表征模块和并行分支表征模块；其中，预处理表征模块利用深度可分离卷积改进了Transformer以处理时频谱图，增强了自注意力机制对局部特征的建模能力；并行分支表征模块联合了Transformer、卷积层、池化层等执行两路差异表征，然后融合两路特征，可以聚焦更细微的关键特征，实现高精度水声智能频谱感知技术。在信噪比-18～0 dB范围内，与RepVGG、Swin-transformer、YOLOv7、MobileNet算法相比，基于FL-TransCNN神经网络的水声智能频谱感知算法的平均检测概率提升了4%～10%，平均虚警概率降低了2%～9%。

关键词：海洋物联网频谱感知联邦学习连续小波变换深度可分离卷积

Protein adsorption, cell viability and corrosion properties of Ti6Al4V alloy treated by plasma oxidation and anodic oxidation

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International Journal of Minerals,Metallurgy and Materials 2020年第9期27卷 1269-1280页

作者： ÖzgüBayrak Hojjat Ghahramanzadeh Asl ayşe Ak Department of Mechanical engineering Erzincan Binali Yıldırım UniversityErzincan 24100Turkey Department of Mechanical engineering Karadeniz Technical UniversityTrabzon 61080Turkey Vocational School of Health Services Medical Imaging Techniques ProgrammeKocaeli UniversityKocaeli 41001Turkey

The hardness,wettability,and electrochemical properties of Ti6Al4V alloy surfaces treated with anodic oxidation and plasma oxidation as well as the viabilities of the different cell lines on the obtained surfaces were *** anodic oxidation was performed for 10 min under 100 V potential,and it resulted in a 0.95μm thick nanoporous anatase-TiO2 *** the other hand,plasma oxidation was carried out at 650℃ for 1 h and resulted in a dense rutile-TiO2 structure with a thickness of 1.2μ*** a hardness of HV0.025823 and roughness of^220 nm were obtained by plasma oxidation,those obtained by anodic oxidation were HV0.025512 and^130 nm,*** anodic oxidation process created a more hydrophilic surface with a contact angle of 87.2°.Both oxidation processes produced similar properties in terms of corrosion behavior and showed better resistance than the as-received state in a certain range of ***,the surface treatments led to no significant change in the protein adsorption levels,which indicates that the difference in viability between the osteoblast and fibroblast cells was not due to the difference in surface protein *** all the factors,the surfaces obtained by anodic oxidation treatment revealed higher cell viability than those obtained by plasma oxidation(p=0.05).

关键词： Ti6Al4V oxidation corrosion cell viability protein adsorption

Three-to-one internal resonance in multiple stepped beam systems

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Applied Mathematics and Mechanics(english edition) 2009年第9期30卷 1131-1142页

作者： A. tekin e. zkaya S. M. Bagdatlh Technical Vocational School of Higher education Celal Bayar University Department of Mechanical engineering Celal Bayar University

In this study, the vibrations of multiple stepped beams with cubic nonlinearities are considered. A three-to-one internal resonance case is investigated for the system. A general approximate solution to the problem is found using the method of multiple scales （a perturbation technique）. The modulation equations of the amplitudes and the phases are derived for two modes. These equations are utilized to determine steady state solutions and their stabilities. It is assumed that the external forcing frequency is close to the lower frequency. For the numeric part of the study, the three-to-one ratio in natural frequencies is investigated. These values are observed to be between the first and second natural frequencies in the cases of the clamped-clamped and clamped-pinned supports, and between the second and third natural frequencies in the case of the pinned-pinned support. Finally, a numeric algorithm is used to solve the three-to-one internal resonance. The first mode is externally excited for the clamped-clamped and clamped-pinned supports, and the second mode is externally excited for the pinned-pinned support. Then, the amplitudes of the first and second modes are investigated when the first mode is externally excited. The amplitudes of the second and third modes are investigated when the second mode is externally excited. The force-response, damping-response, and .frequency- response curves are plotted for the internal resonance modes of vibrations. The stability analysis is carried out for these plots.

关键词： stepped beam three-to-one internal resonance stability analysis nonlinear vibration perturbation method

A New Model Inspired by the Pompeii Worm to Reverse Overheating in Nanosatellites

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Space(Science & Technology) 2023年第1期3卷 133-140页

作者： ayşe MeriçYazıcı erik Persson Department of Philosophy Lund UniversityLundSweden

Nanosatellites are exposed to extreme temperatures on the spacecraft surface,which can reach up to±100℃.In this paper,we suggest a novel solution to this challenge by the use of *** imitation of the behavior of living creatures in nature is an attempt to understand and synthesize a natural object or phenomenon in an abstract or concrete *** inspiration from living things in nature can come through the materials,processes,or designs we see around us,and there is no engineering effort *** nature,the best example of temperature reversal is the Pompeii *** Pompeii worm realizes the conversion of the excess heat it is exposed to into cooling inside a multilayered *** this work,inspired by the strategy of the Pompeii worm in reversing overheating,we present a new model for the overheating problem in nanosatellites.

关键词： form heating extreme

Quercetin Attenuates Benzo(α)pyrene-induced CYP1A expression

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Biomedical and environmental Sciences 2017年第4期30卷 308-313页

作者： Perepechaeva ML Seredina ta Sidorova YA Pivovarova eN Markel AL Lyakhovich VV Grishanova ay Institute of Molecular Biologv and Biophysics Novosibirsk 630117Russia Federal research center Institute of Cytology and Genetics Siberian Branch of Russian Academy of Sciences(SB RAS)Novosibirsk 630090Russia Novosibirsk State University Novosibirsk 630090Russia

We studied effects of nutrient quercetin on cytochromes＇ Р450 1А （CYP1A） activities （measured spectrofluorimetrically using 7-ethoxy-resorufin for CYP1A1 and 7-methoxy-resorufin for CYP1A2 as substrates）, on m RNA levels （measured by RT-PCR）, and on DNA-binding activities （evaluated by an electrophoretic mobility shift assay） of proteins regulating CYP1A expression in untreated and benzo（α）pyrene （Ba P）-treated rats. Wistar rats received quercetin, Ba P, or both once daily for 1-3 days. Quercetin did not influence CYP1A1 in untreated rats but inhibited Ba P-mediated CYP1A induction on the transcriptional level decreasing positive input （Ah R functional activity） and increasing negative input （Ah RR/ARNT expression and Oct-1 and C/eBP functional activities）.

关键词： CYP pyrene-induced CYP1A expression Quercetin Attenuates Benzo

Simulations of mass attenuation coefficients for shielding materials using the MCNP-X code

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Nuclear Science and Techniques 2017年第7期28卷 43-46页

作者： Huseyin Ozan tekin Tugba Manici Vocational School of Health Service Radiotherapy Department Uskudar University 34672 Istanbul Turkey Medical Radiation Research Center (USMeRA) Uskudar University 34672 Istanbul Turkey

In this paper,mass attenuation coefficients of concrete,bricks and cement plaster,as shielding materials,are calculated at 59.5,356,662,1173,1274 and 1333 keV by using the MCNP-X(version 2.4.0) *** numerical simulation results are compared with previous Monte Carlo studies,experimental results and XCOM *** effects of barite on mass attenuation coefficients are *** mass attenuation coefficients increase with the barite ***,our results agree well with experimental studies on gamma ray shielding of *** is flexible for the MN method to change the barite rates in material by small increments,which is experimentally ***,modeled geometry can be used for future approaches such as new designs and new structures especially in investigating new barite-containing materials to build nuclear reactors or high-energy radiation therapy facilities.

关键词：质量衰减系数屏蔽材料数值模拟代码几何结构重晶石水泥砂浆蒙特卡罗

Microtextural Characteristics and Origin of Dolomites in the Tepearasi Formation, SW of Beysehir-Konya, Turkey

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Acta Geologica Sinica(english edition) 2002年第1期76卷 100-109页

作者： erdogan tekin Ali SARI Department of Geological engineering Faculty of Engineering Ankara UniversityTandogan Ankara 06100 TurkeyDepartment of Geological Engineering Faculty of Engineering Ankara UniversityTandogan Ankara 06100 Turkey

The Tepearasi Formation of the autochthonous Geyikdagi Group in the Centraltauride Belt, Se of Beysehir, is Dogger in age and consists dominantly of massive limestones andgreyish dolomites occurring within the middle to upper sections. The total thickness of thedolomitic levels ranges from 100-300 m and laterally extends 500-700 m. Three types of dolomite weredistinguished through petrographic analyses: homogeneous, mottled (saddle-crystalline) andjoint-filling dolomite, which were interpreted to have formed in two different stages, earlydiagenetic and late diagenetic. The homogeneous dolomite of the early diagenetic stage islight-coloured and monotonous-textured and shows the form of a dolosparite mosaic. The mottleddolomite formed in the late diagenetic stage is light- to dark-coloured and coarsely granularidiomorphic. The other type of late diagenetic dolomite, described as the joint-filling type,presents a crystal growth pattern from the joint walls towards the centre of the joint space. It isassociated with coarse calcite crystals as well as primary dolomite crystal clasts which were formedin the early diagenetic stage. In addition to these characteristics, cataclastic texture indicatingthe influence of tectonism is also observed. Microtexture-oriented scanning electron microscopy(SeM) studies indicate that mottled dolomites show zonal structures and contain secondarydissolution vugs. SeM studies also revealed the existence of some remains (calcite, clay etc.) injoint-filling dolomites. Analyses by energy dispersive spectrometry (eDS) indicate the existence ofclay minerals (likely to be illite) in the pores of dolomite. Isotope studies conducted to shedlight onto the origin of the dolomites of the Tepearasi Formation yielded the results of delta^18O=-2.48 to - 3.87 per thousand and delta^13C=0.93 to l.12 per thousand for the early diagenetichomogeneous dolomites. Mottled and joint-filling type dolomites of the late diagenetic stage, on theother hand, gave the r

关键词： Tepearasi dolomites microtextural characteristics dolomitization models

The effect of hardaliye on reducing the formation of malondialdehyde during in vitro gastrointestinal digestion of meat products

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Food Bioscience 2022年第3期47卷 1271-1280页

作者： ayşe Semra Aksoy Muhammet Arici Mustafa Yaman Department of Food engineering Faculty of Chemical and Metallurgical EngineeringYildiz Technical UniversityIstanbul34220Turkey Department of Nutrition and Dietetics Faculty of Health SciencesIstanbul Sabahattin Zaim UniversityIstanbul34303Turkey

Hardaliye is a non-alcoholic beverage produced from red/black grapes by adding mustard seeds and lactic acid *** this study,it was aimed to determine the total phenolic content(TPC)and total antioxidant capacity(taC)of hardaliye samples produced with three different grape varieties(Shiraz,Merlot and Cabernet Sauvignon)before and after in vitro digestion,to determine their bioaccessibility,and to investigate their effects on reducing malondialdehyde(MDA)formation in meat *** decreased after in vitro digestion in all three hardaliye samples and their bioaccessibility values were 57.64%,41.54%,and 52.78%(for Shiraz,Merlot,and Cabernet Sauvignon hardaliye,respectively).After in vitro digestion taC value according to the DPPH method increased in all samples and according to the CUPRAC method decreased in Merlot and Cabernet Sauvignon hardaliye samples,while it increased in the Shiraz *** in vitro digestion,MDA value increased in control meat samples and decreased in the samples treated with hardaliye *** treatment with other beverages was effective in reducing the post-digestion MDA value of some meat samples,the hardaliye samples were more effective in reducing this value and the lowest MDA bioaccessibility(%)values were determined in those treated with hardaliye *** samples with the lowest values were meat doner 1 treated with Shiraz hardaliye(10.27%);burger patties 2 treated with Shiraz hardaliye(22.40%);and meatball 2 treated with Cabernet Sauvignon hardaliye(7.12%).These findings indicate that hardaliye has potential beneficial health effects and can be used for the design of healthy eating patterns due to its lipid oxidation reducing potential in the gastrointestinal tract.

关键词： Hardaliye Antioxidant activity Bioactive property Bioaccessibility In vitro digestion Lipid peroxidation Malondialdehyde Grape Oxidative stress Nutrition