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Determination of Indicator Plants for Boron in the Kirka(Eskisehir/Turkey)Boron Deposit Area 被引量:1
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作者 Zeynep Ozdemir Semiha Zorlu +1 位作者 Mustafa Akyildiz Fulya Yücesoy Eryilmaz 《International Journal of Geosciences》 2014年第1期77-84,共8页
The amount of elements in plants is important for biogeochemical explorations. Some plants which were accumulated extremely elements, are called indicator plants. In this study, the 11 plant species and soil samples w... The amount of elements in plants is important for biogeochemical explorations. Some plants which were accumulated extremely elements, are called indicator plants. In this study, the 11 plant species and soil samples were collected boron deposits area in Kirka (Eskisehir). Boron is determinated in plants (leaves and twigs) and soil samples. Additionally, statistical relations were established between the B values of plant and soil samples and three plants were only found. The boron in twigs of Puccinellia intermedia (n = 17, r = 0.7274), twigs of Genista aucheri (n = 26, r = 0.8581 and leaves of Pinus nigra (n = 16, r = 0.6805) species are found 119, 81 and 115 mg/kg respectively. This species was reflected boron in soil and their used indicator plant for boron. The indicator plants could be successfully used for biogeochemical prospecting and environmental monitoring. 展开更多
关键词 BIOGEOCHEMISTRY BORON Indicator Plant Kirka(eskisehir/turkey)
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A geochemical perspective on the genesis of Cenozoic basic volcanism in northeastern Turkey:an overview of metasomatism and heterogeneity of the sub-continental lithospheric mantle in a post-collisional setting
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作者 Mehmet Arslan Irfan Temizel 《Acta Geochimica》 EI CAS CSCD 2024年第3期489-506,共18页
The post-collisional Cenozoic basic volcanic rocks in NE Turkey show temporal variations in whole-rock lithophile element and highly siderophile element(HSE)systematics that are mainly associated with the nature of su... The post-collisional Cenozoic basic volcanic rocks in NE Turkey show temporal variations in whole-rock lithophile element and highly siderophile element(HSE)systematics that are mainly associated with the nature of sub-continental lithospheric mantle(SCLM)sources and parental melt generation.So far,the traditional whole-rock lithophile geochemical data of these basic volcanic rocks have provided important constraints on the nature of SCLM sources.Integrated lithophile element and HSE geochemical data of these basic volcanic rocks also reveal the heterogeneity of the SCLM source,which is principally related to variable metasomatism resulting from previous subduction(s)and post-collisional mantle-crust interactions in an extensional setting.Lithophile element geochemical features suggest that the parental magmas have derived from metasomatized spinel-to garnet-bearing SCLM sources for Eocene and Miocene basic volcanic rocks with subduction signatures whereas originated from spinel-to garnet-bearing SCLM sources for Mio-Pliocene and Plio-Quaternary basaltic volcanic rocks without the subduction signature.Lithophile element and HSE geo-chemistry also reveal that Eocene and Miocene basic vol-canic rocks were affected by more pronounced crustal contamination than the basaltic volcanic rocks of Mio-Pliocene and Quaternary.Furthermore,the integrated lithophile element and HSE compositions of these basic volcanic rocks,together with the regional asymmetric lithospheric delamination model,reveal that the compositional variation(especially due to metasomatism)was significant temporally in the heterogeneity of the SCLM sources from which parental magmas formed during the Cenozoic era. 展开更多
关键词 BASALT Lithospheric mantle METASOMATISM Mantle heterogeneity Cenozoic volcanics NE turkey
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基于Semantic Turkey的主题词表及本体构建应用研究
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作者 姚晓娜 王思丽 张旺强 《数字图书馆论坛》 CSSCI 2024年第5期28-34,共7页
主题词表及本体是语义化知识管理系统的基础数据支撑,对领域知识的语义化组织及知识图谱的构建具有重要意义。在建设公共危机案例知识集成平台的过程中,采用开源软件Semantic Turkey开发主题词表及本体构建功能,并在此基础上实现规范数... 主题词表及本体是语义化知识管理系统的基础数据支撑,对领域知识的语义化组织及知识图谱的构建具有重要意义。在建设公共危机案例知识集成平台的过程中,采用开源软件Semantic Turkey开发主题词表及本体构建功能,并在此基础上实现规范数据录入、词表导航、知识映射等功能,从而支持进一步的语义检索和知识推理。构建的主题词表及本体模型基于语义网标准与技术,具有良好的规范性和互操作性。开源软件Semantic Turkey提供了功能完备的应用程序编程接口,与完全自主开发相比,降低了开发成本,缩短了开发时间,为语义化知识管理系统的开发工作提供新思路和参考依据。 展开更多
关键词 主题词表 本体 Semantic turkey SKOS OWL
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Prevalence of pseudoexfoliation syndrome and its association with ocular and systemic diseases in Eskisehir,Turkey 被引量:1
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作者 Nilgun Yildirim Erdogan Yasar +1 位作者 Huseyin Gursoy Ertugrul Colak 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2017年第1期128-134,共7页
AIM: To investigate the prevalence of pseudoexfoliation syndrome (PEX) and its associations with ocular and systemic diseases in a population sample aged over 40y. METHODS: A total of 2356 subjects were randomly c... AIM: To investigate the prevalence of pseudoexfoliation syndrome (PEX) and its associations with ocular and systemic diseases in a population sample aged over 40y. METHODS: A total of 2356 subjects were randomly chosen for the sample population based on the database of the Turkish Statistical Agency in Eskisehir. Of the invited 2356 subjects, 2017 subjects participated, out of which 2009 were eligible for the study. Systemic diseases, drug use, smoking and body mass index were assessed using questionnaires. Measurements of central corneal thickness (CCT), anterior chamber depth (ACD) and intraocular pressure (IOP) were performed during June to December, 2015. After pupillary dilation, the anterior segment and lenses were evaluated using a slit lamp.RESULTS: Prevalence of PEX in this sample was 5.0% (n=100). Of patients with PEX, 26% also had glaucoma. Incidence of cataracts, and using drugs for hypertension, cardiac and psychiatric conditions was higher in patients with PEX compared to normal cases (P〈0.05). Hearing loss was more common in PEX cases (34.0% vs 5.4%; P〈0.001). The mean CCT, ACD and IOP were not significantly different between PEX and non-PEX cases.CONCLUSION: This study is the first population-based, randomized trial in Turkey. Prevalence of PEX in patients over 40 years old was found to be 5.0%. Besides glaucoma and cataract, hypertension, hearing loss, using drugs for cardiac and psychiatric diseases were associated with PEX. 展开更多
关键词 pseudoexfoliation syndrome pseudoexfoliation glaucoma prevalence of pseudoexfoliation systemic disease turkey
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Association of eleven single nucleotide polymorphisms with refractive disorders from Eskisehir,Turkey
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作者 Nadir Unlu Ebru Erzurumluoglu Gokalp +4 位作者 Serap Arslan Oguz Cilingir Muzaffer Bilgin Engin Yildirim Huseyin Gursoy 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2021年第6期812-817,共6页
AIM:To investigate relationship between refractive errors and eleven single nucleotide polymorphisms(SNPs)in HGF,GC,MFN1,GNB4,and VDR genes in Turkish population.METHODS:A group of 212 participants with myopia(n=91),h... AIM:To investigate relationship between refractive errors and eleven single nucleotide polymorphisms(SNPs)in HGF,GC,MFN1,GNB4,and VDR genes in Turkish population.METHODS:A group of 212 participants with myopia(n=91),hyperopia(n=45),and emmetropia(n=76)were investigated in this study.SNPs in HGF,GC,MFN1,GNB4 and VDR genes were studied by Snap Shot technique.RESULTS:The patients in this study consists of 47 female/44 male(age:23.47±4.30)patients with myopia,20 female/25 male(age:31.20±8.02)with hyperopia and 33 female/43 male(age:25.22±6.60)with emmetropia.The genotype distribution of the rs7618348 polymorphism,which was the only statistically significant one between myopia and emmetropia group.The genotype distribution of the rs3819545,rs3735520,rs7041,and rs2239182 polymorphisms,which were statistically significant between hyperopia and emmetropia groups.CONCLUSION:The importance of genetic predisposition to refractive errors with respect to etiology of the disease is revealed.It is known that polymorphism studies may differ because of genetic diversity among populations so larger cohort studies are required in different populations to enlighten the etiology of the refractive errors. 展开更多
关键词 refractive disorders MYOPIA HYPEROPIA GENETICS single nucleotide polymorphisms turkey
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The 2023 Turkey earthquake doublet: Earthquake relocation, seismic tomography, and stress field inversion
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作者 HuiLi Zhan Ling Bai +3 位作者 Bagus Adi Wibowo ChaoYa Liu Kazuo Oike Yuzo Ishikawa 《Earth and Planetary Physics》 EI CAS CSCD 2024年第3期535-548,共14页
On February 6,2023,two earthquakes with magnitudes of M_(W) 7.8 and M_(W) 7.5 struck southeastern Turkey,causing significant casualties and economic losses.These seismic events occurred along the East Anatolian Fault ... On February 6,2023,two earthquakes with magnitudes of M_(W) 7.8 and M_(W) 7.5 struck southeastern Turkey,causing significant casualties and economic losses.These seismic events occurred along the East Anatolian Fault Zone,a convergent boundary between the Arabian Plate and the Anatolian Subplate.In this study,we analyze the M_(W) 7.8 and M_(W) 7.5 earthquakes by comparing their aftershock relocations,tomographic images,and stress field inversions.The earthquakes were localized in the upper crust and exhibited steep dip angles.Furthermore,the aftershocks occurred either close to the boundaries of low and high P-wave velocity anomaly zones or within the low P-wave velocity anomaly zones.The East Anatolia Fault,associated with the M_(W) 7.8 earthquake,and the SürgüFault,related to the M_(W) 7.5 earthquake,predominantly experienced shear stress.However,their western sections experienced a combination of strike-slip and tensile stresses in addition to shear stress.The ruptures of the M_(W) 7.8 and M_(W) 7.5 earthquakes appear to have bridged a seismic gap that had seen sparse seismicity over the past 200 years prior to the 2023 Turkey earthquake sequence. 展开更多
关键词 turkey earthquake doublet earthquake relocation seismic tomography stress field SEISMICITY
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Lithospheric strength of the Anatolian plateau and implications for strong earthquake activity in Turkey
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作者 Yuhang Pan Shi Chen Wen Shi 《Geodesy and Geodynamics》 EI CSCD 2024年第3期209-218,共10页
On February 6, 2023, the doublet earthquake including two main shocks with magnitudes M_(W)7.8 and M_(W)7.5, occurred near the western side of the East Anatolian Fault at the southeast boundary of the Anatolian Platea... On February 6, 2023, the doublet earthquake including two main shocks with magnitudes M_(W)7.8 and M_(W)7.5, occurred near the western side of the East Anatolian Fault at the southeast boundary of the Anatolian Plateau in Turkey. Based on the WGM2012 Bouguer gravity anomaly data and the Etopo1topography data, this study first introduced a joint inversion of admittance and coherence functions and used the Bayesian optimal parameter estimation method to obtain the effective elastic thickness Teand loading ratio F of the lithosphere for various tectonic units in the Anatolian Plateau. Secondly, we discussed the characteristics and influencing factors of the lithospheric mechanical strength and analyzed its relationship with seismic activity. The lithospheric mechanical strength of the Anatolian Plateau showed clear lateral heterogeneity and a "weak-strong-weak" spatial pattern from east to west,reflecting various tectonic processes. At last, the strong seismic activity was found where the lithospheric strength was low in the Anatolian Plate. We also incorporated GPS strain rate and other results to investigate the tectonic background and primary causes of the M_(W)7.8 and M_(W)7.5 doublet earthquakes in Turkey. The results have a good insight into urban safety design in the Turkish region, including postdisaster rehabilitation, earthquake hazard assessment, and loss reduction. 展开更多
关键词 Effective elastic thickness Anatolian plateau turkey doublet earthquakes Bayesian optimization
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The Identity and Discourse in Georgian and Turkey Diplomatic Relations Between 2002-2022
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作者 Abdulmelik Alkan 《International Relations and Diplomacy》 2024年第3期121-137,共17页
This article’s primary objective is to answer the question of what is the semantic language of identity and interests of Turkey and Georgia?In addition,it analyzes the connotative quotes that exchanged between the tw... This article’s primary objective is to answer the question of what is the semantic language of identity and interests of Turkey and Georgia?In addition,it analyzes the connotative quotes that exchanged between the two countries during diplomatic visits.Because the article concentrated on the remarks that were stressed during visits and meetings that took place between the years 2002 and 2022,it was necessary to search through 150 news on civil.ge site and filter down to 35 news before applying the content analysis.The AntConc corpus analysis was used in order to comprehend the nature of the political conversation between both countries.According to the findings,the constructivism of core theme that claim states view each other via the identity through interaction was verified.The purpose of the research is to provide a contribution to the study of the identities and interests of Georgia and Turkey who are good neighbors. 展开更多
关键词 Georgia turkey IDENTITY diplomatic language DISCOURSE
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Guangxi and Turkey Enhance Industrial Cooperation
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作者 Ada Wang 《China's Foreign Trade》 2024年第3期36-37,共2页
Recently,China and Turkey have been actively promoting the synergy between the Belt and Road Initiative and Turkey’s“Middle Corridor”Initiative.The“Guangxi’s Connecting with Five Continents(Asia-Europe)”China(Gu... Recently,China and Turkey have been actively promoting the synergy between the Belt and Road Initiative and Turkey’s“Middle Corridor”Initiative.The“Guangxi’s Connecting with Five Continents(Asia-Europe)”China(Guangxi)-Turkey Economic and Trade Cooperation Promotion Conference jointly hosted by CCPIT’s Guangxi Branch and the Turkish Consulate General in Guangzhou was held in Nanning,with the aim to further expand exchanges and cooperation between Turkey and Guangxi in the economic and trade fields. 展开更多
关键词 jointly turkey MIDDLE
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Subduction Initiation for the Formation of High-Cr Chromitites in the Kop Ophiolite, NE Turkey 被引量:6
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作者 ZHANG Pengfei Ibrahim UYSAL +2 位作者 ZHOU Meifu SU Benxun Erdi AVCI 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2016年第S1期253-,共1页
The Kop ophiolite in NE Turkey,representing a forearc fragment of Neo-Tethys ocean,mainly consists of a paleoMoho transition zone(MTZ)and a harzburgitic upper mantle unit.The Kop MTZ locally contains cumulate
关键词 NE turkey high REE Subduction Initiation for the Formation of High-Cr Chromitites in the Kop Ophiolite CR
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Iron Isotopic Fractionation and Origin of Chromitites in the Paleo-Moho Transition Zone of the Kop Ophiolite, NE Turkey 被引量:5
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作者 ZHAGN Pengfei ZHOU Meifu +4 位作者 SU Benxun Ibrahim UYSAL Paul T.ROBINSON Erdi AVCI HE Yongsheng 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2017年第S1期53-,共1页
The Kop ophiolite in NE Turkey is a fragment of Neo-Tethyan forearc.It can be mainly divided into a paleo-Moho transition zone(MTZ)in the North and a harzburgitic mantle sequence in the South.Dunites are predominant i... The Kop ophiolite in NE Turkey is a fragment of Neo-Tethyan forearc.It can be mainly divided into a paleo-Moho transition zone(MTZ)in the North and a harzburgitic mantle sequence in the South.Dunites are predominant in the MTZ of the Kop ophiolite,and they are locally interlayered with chromitites and enclose minor bodies of harzburgites near the petrological Moho boundary.Large Fe isotopic variations were observed for magnesiochromite(-0.14‰to 0.06‰)and olivine(-0.12‰to 0.14‰)from the MTZ chromitites,dunites and harzburgites.In individual dunite samples,magnesiochromite usually has lighter Fe isotopic compositions than olivine,which was probably caused by subsolidus Mg-Fe exchange between the two mineral phases.Both magnesiochromite and olivine display an increasing trend ofδ56Fe along a profile from chromitite todunite.This trend reflects continuous fractional crystallization in a magma chamber,which resulted in heavier Fe isotopes concentrated in the evolved magmas.In each cumulative cycle of chromitite and dunite,dunite was formed from relatively evolved melts after massive precipitation of magnesiochromite.Mixing of more primitive and evolved melts in the magma chamber was a potential mechanism for triggering the crystallization of magnesiochromite,generating chromitite layers in the cumulate pile.Before mixing happened,the primitive melts had reacted with mantle harzburgites during their ascendance;whereas the evolved melts may lie on the olivine-chromite cotectic near the liquidus field of pyroxene.Variable degrees of magma mixing and differentiation are expected to generate melts with differentδ56Fe values,accounting for the Fe isotopic variations of the Kop MTZ. 展开更多
关键词 MTZ Iron Isotopic Fractionation and Origin of Chromitites in the Paleo-Moho Transition Zone of the Kop Ophiolite NE turkey Fe
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The Intra-Pontide ophiolites in Northern Turkey revisited:From birth to death of a Neotethyan oceanic domain 被引量:1
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作者 Michele Marroni M.Cemal Goncüoglu +4 位作者 Chiara Frassi Kaan Sayit Luca Pandolfi Alessandro Ellero Giuseppe Ottria 《Geoscience Frontiers》 SCIE CAS CSCD 2020年第1期129-149,共21页
The Anatolian peninsula is a key location to study the central portion of the Neotethys Ocean(s)and to understand how its western and eastern branches were connected.One of the lesser known branches of the Mesozoic oc... The Anatolian peninsula is a key location to study the central portion of the Neotethys Ocean(s)and to understand how its western and eastern branches were connected.One of the lesser known branches of the Mesozoic ocean(s)is preserved in the northern ophiolite suture zone exposed in Turkey,namely,the Intra-Pontide suture zone.It is located between the Sakarya terrane and the Eurasian margin(i.e.,Istanbul-Zonguldak terrane)and consists of several metamorphic and non-metamorphic units containing ophiolites produced in supra-subduction settings from the Late Triassic to the Early Cretaceous.Ophiolites preserved in the metamorphic units recorded pervasive deformations and peak metamorphic conditions ranging from blueschist to eclogite facies.In the nonmetamorphic units,the complete oceanic crust sequence is preserved in tectonic units or as olistoliths in sedimentary melanges.Geochemical,structural,metamorphic and geochronological investigations performed on ophiolite-bearing units allowed the formulation of a new geodynamic model of the entire"life"of the IntraPontide oceanic basin(s).The reconstruction starts with the opening of the Intra-Pontide oceanic basins during the Late Triassic between the Sakarya and Istanbul-Zonguldak continental microplates and ends with its closure caused by two different subductions events that occurred during the upper Early Jurassic and Middle Jurassic.The continental collision between the Sakarya continental microplate and the Eurasian margin developed from the upper Early Cretaceous to the Palaeocene.The presented reconstruction is an alternative model to explain the complex and articulate geodynamic evolution that characterizes the southern margin of Eurasia during the Mesozoic era. 展开更多
关键词 Intra-Pontide suture zone Central Pontides Northern turkey OPHIOLITES Neotethys Ocean GEODYNAMICS
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Effects of environmentally friendly agricultural land protection programs: Evidence from the Lake Seyfe area of Turkey 被引量:3
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作者 Ismet Boz 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2016年第8期1903-1914,共12页
fully supported by the Turkish Scientific Research Council (TUBITAK in Turkish, 110O747)
关键词 sustainable development sustainable agriculture environmental problems diffusion of innovations Lake Seyfe Kirsehir turkey
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Analysis of the forest fires in the Antalya region of Turkey using the Keetch–Byram drought index 被引量:1
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作者 Tugrul Varol Mertol Ertugrul 《Journal of Forestry Research》 SCIE CAS CSCD 2016年第4期811-819,共9页
We investigated the correlation of large fires([300 ha) from 1992 to 2013 within the borders of the Antalya Regional Directorate of Forestry using the Keetch–Byram drought index(KBDI). Daily KBDI values were calc... We investigated the correlation of large fires([300 ha) from 1992 to 2013 within the borders of the Antalya Regional Directorate of Forestry using the Keetch–Byram drought index(KBDI). Daily KBDI values were calculated for each year, and values for the period before the year 2000 differed significantly from those after2000. After 2000(large fires occurred in 2004, 2006, 2007,2008, 2010, and 2013), when KBDI values increased, the KBDI, but not the number of fires, was inversely correlated with the natural log of the burned area(NLBA). While there were both high and low KBDI values when the NLBA was small, only high KBDI values were associated with high NLBA values. Particularly for logarithmic values of 4 and higher, KBDI values increased in parallel with increases in NLBA values. On the basis of a Mann–Whitney U test done in addition to a Pearson correlation test, we found that when the burned areas were grouped according to small and large areas, the KBDI could be used to distinguish the two groups. Using a conditional probability analysis, we found that 4th, 5th and 6th class KBDI values may lead to large fires at the 60 % possibility.Similarly, the possibility of large fires greater than the median burned area in any given 6 years was found to be48 %. In addition, while the mean value of KBDI is 390.51 for the period from May to September for these 6 years, it is 359.93 for the other years. Consequently, the area burned also increased as the KBDI classes(Class 0: 0–99, Class 1:100–199, Class 2: 200–299, Class 3: 300–399, Class 4:400–499, Class 5: 500–599, Class 6: 600–699, and Class 7:700–800) increase. 展开更多
关键词 drought grouped possibility distinguish median turkey conditional explained moisture ranged
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Consumer Attitudes Towards Private Shopping Sites in Turkey 被引量:1
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作者 Burcu Inci 《Chinese Business Review》 2017年第1期1-18,共18页
Private shopping sites (PSSs) business model is developing rapidly both in the world and in Turkey since 2000s. However, studies related consumer attitudes towards private shopping sites in Turkey are limited in the... Private shopping sites (PSSs) business model is developing rapidly both in the world and in Turkey since 2000s. However, studies related consumer attitudes towards private shopping sites in Turkey are limited in the literature. So, the main aim of this paper is revealing variables that affect attitudes of PSSs customers in Turkey and conceptualizing these variables within the scope of a model that depends on Technology Acceptance Model (TAM) In this descriptive study, research population includes all of the consumers who made at least one shopping from PSSs in Turkey and "snowball sampling method" is used. In consequence of an online survey application 409 questionnaires are analyzed. As a result of regression analysis, all of the 14 hypotheses are accepted. In conclusion all of the variables in the model (product quality, delivery service, system quality, information quality, service quality, perceived usefulness, perceived ease of use, compatibility, privacy, and security) have significant relations with consumer attitudes. The most important variables in building positive attitudes towards PSSs are perceived usefulness and compatibility. Conversely the lowest variance prediction percentage belongs to privacy variable. 展开更多
关键词 Technology Acceptance Model (TAM) online shopping private shopping sites (PSSs) consumer attitudes PSSs in turkey
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Hexachlorobenzene Episode in Turkey
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作者 AYHAN GOCMEN HENRY A.PETERS +2 位作者 DEREK J.CRIPPS GEORGE T.BRYAN CARL R.MORRIS 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 1989年第1期36-43,共8页
During the period 1955-1959, approximately 4000 people in southeast Anatolia developed porphyria due to the ingestion of hexachlorobenzene (HCB), a fungicide added to wheat seedlings. These HCB exposures subsequently ... During the period 1955-1959, approximately 4000 people in southeast Anatolia developed porphyria due to the ingestion of hexachlorobenzene (HCB), a fungicide added to wheat seedlings. These HCB exposures subsequently led to the development of bullae on sun-exposed areas, hyperpigmentation, hypertrichosis, and porphyrinuria. The condition was called kara yara or 'black sore.' Many of the breast-fed children under the age of 2 years whose mothers had ingested HCB-treated grain died from a disease known as pembe yara or 'pink sore.' In this follow-up study of 252 patients, 20-30 years postexposure, there were 162 males and 90 females, with an average current age of 35.7 years, an average of onset of 7.6 years, and a duration of 2.2 years. Many patients had dermatologic, neurologic, and orthopedic symptoms and signs. The observed clinical findings include scarring of the face and hands (83.7%), hyperpigmentation (65%), hypertrichosis (44.8%), pinched facies (40.1%), painless arthritis (70.2%), small hands (66.6%), sensory shading (60.6%), myotonia (37.9%), cogwheeling (41.9%), enlarged thyroid (34.9%), and enlarged liver (4.8%). Urine and stool porphyrin levels were determined in all patients, and 17 have at least one of the porphyrins elevated. A total of 56 specimens of human milk obtained from mothers with porphyria were analyzed for HCB. The average value was 0.51 ppm in HCB-exposed patients compared to 0.07 ppm in unexposed controls. Offspring of mothers with three decades of HCB-induced porphyria appear normal. 1989 Academic Press, Inc. 展开更多
关键词 Hexachlorobenzene Episode in turkey HCB
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Pollution and health risk assessment of heavy metals in waters around mine sites of Elazig(Eastern Turkey)
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作者 H.Alim BARAN Mahmut Tahir NALBANTCILAR Nida KOKTAN 《Journal of Mountain Science》 SCIE CSCD 2023年第5期1293-1306,共14页
Turkey’s Eastern Anatolia Region is the oldest known mineral mining area of Maden and Alacakaya.Chromite production in the Alacakaya field constitutes 50% of the country’s exports,and copper mines in the Maden regio... Turkey’s Eastern Anatolia Region is the oldest known mineral mining area of Maden and Alacakaya.Chromite production in the Alacakaya field constitutes 50% of the country’s exports,and copper mines in the Maden region account for approximately 12% of the country’s copper production.There is a risk of water pollution due to significant mine waste which affects the Inci and Maden rivers.The water needs of many settlements are met from these streams,which run through these two mine sites.This study investigated the water pollution in the rivers.25 water samples were collected during the dry and rainy periods,and the Al,Cr,Cu,Fe,Li,Mn,Ni,Pb,Sr and Zn contents of these samples were examined in terms of health.Evaluation of element concentrations and creation of spatial distribution maps were performed using ArcGIS software.Spatial distribution maps,correlation and cluster analysis indicate that the source of heavy metals observed in waters is mine fields.The heavy metal content of the samples is higher in the dry period,the high concentration values are obtained from the mine sites,the decrease in the concentrations throughout the flow during the rainy period,are indicators of the effect of the mines on the water pollution.As a result of the comparison from the analysis results of water samples with World Health Organization(WHO),Environmental Protection Agency(EPA)and European Commission(EC)standards,the element values of Al,Cr,Fe,Mn,Ni and Pb exceeded the permissible values for health.The concentrations of these elements for dry period samples are:0-6.411 mg L^(-1),0.006-0.235 mg L^(-1),0-13.433 mg L^(-1),0-0.316 mg L^(-1),0-0.495 mg L^(-1),0-0.065mg L^(-1),and for rainy period samples are 0-1.698mg/L,0-0.2 mg L^(-1),0-9.033 mg L^(-1),0-0.173 mg L^(-1),0-0.373 mg L^(-1),0-0.034 mg L^(-1),respectively.Although the waters in the region are polluted by heavy metals,it has been determined that there is no noncarcinogenic hazard as a result of the calculation of the hazard index(HI<1)by ingestion and dermal contact within the scope of human health risk assessment.This study will be beneficial as it draws attention to the prevention of the negative effects of water pollution,which may cause serious health problems in the future as a result of mining activities in the region. 展开更多
关键词 Eastern turkey GIS Mining Heavy metals Risk assessment Water pollution
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Focal mechanism of the 2011 Mw7.1 earthquake in eastern Turkey from InSAR observation
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作者 Li Gang Zhou Yu Liu Gang Qiao Xuejun 《Geodesy and Geodynamics》 2012年第1期8-12,共5页
We used two Envisat images from ESA to reveal the co-seismic deformation field caused by the Mw7.1 earthquake in eastern Turkey on Oct. 23,2011, and a linear elastic dislocation model in half space to estimate the cor... We used two Envisat images from ESA to reveal the co-seismic deformation field caused by the Mw7.1 earthquake in eastern Turkey on Oct. 23,2011, and a linear elastic dislocation model in half space to estimate the corresponding fault geometry, location, and displacement. The result indicates that the earth- quake is caused mainly by a buried thrust and left-lateral strike faulting with an average slip of 1. 456 m on a fault plane of 30 km× 25 km at a depth of 18.4 kin. 展开更多
关键词 INSAR east turkey earthquake co-seismic deformation
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The Evolution of the Quartz Slip Flows Fabrics, Strain Facies Paths, during the Vertical Extrusion of the Kazdag (IDA) Zone, Western Turkey
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作者 Sener Usumezsoy 《Journal of Earth Science and Engineering》 2013年第2期67-101,共35页
The quartz fabric variation and the operation of slip systems were governed by the deformation flow. A new concept named quartz fabric slip flow pattern is to be considered thourgh this relation. On the other hand, st... The quartz fabric variation and the operation of slip systems were governed by the deformation flow. A new concept named quartz fabric slip flow pattern is to be considered thourgh this relation. On the other hand, strain path, quartz fabric variation and strain fabric development are inter related events which controlled by the deformation flow pattern. These events and related structures were analyzed in the Kazdag (IDA) stack antiform. The quartz fabric variation and the strain path analysis reveal mainly three distinct tectonic stages. These are initial vertical extrusion tectonic and following horizontal spreading tectonics. The beginning stage vertical extrusion represented by the quartz Y maxima fabric in rounded pattern and constructional strain and lengthening strain facies. The latest stage of the vertical extrusion also represented by the quartz fabric, constructional strain but proximating to plane strain and lengthening-widening strain facies. The vertical extrusions governed by the steeply dipping reverse faulting at the initial stage and then fallowed by the gently dipping thrusting at the latest stage. The flattening deformation was developed during the horizontal spreading stage. Typical incomplete single girdle quartz fabric, flattening type oblate strain and thinning--widening strain facies are characteristic features of the nappe tectonics. 展开更多
关键词 Quartz fabric deformation NW turkey.
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Investment Environmentin Turkey
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《China's Foreign Trade》 2002年第1期19-20,共2页
Principal of National Treatment The basic principle shaping the liberal foreign investment policy of Turkey is the national treatment principal.
关键词 Investment Environmentin turkey HIGH 口口
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