Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Kaygusuz, Abdullah(15)
- Kurt, Kemal(14)
- Sipahi, Ferkan(14)
- Yücel, Cem(9)
- Arslan, Mehmet(8)
- Akar, Bülent(7)
- Gücer, Mehmet Ali(6)
- Uzun, Sevda(6)
- Şahin, Bülent(6)
- Aslan, Zafer(5)
- Batan, Nevzat(5)
- Dokuz, Abdurrahman(5)
- Vural, Alaaddin(5)
- Erata, Hüseyin(4)
- Temizel, Irfan(4)
- Akpınar, İbrahim(3)
- Alataş, Mevlüt(3)
- Aydınçakır, Emre(3)
- Eyuboglu, Yener(3)
- Ezer, Tülay(3)
- Karsli, Orhan(3)
- Kulakaç, Nurşen(3)
- Sadiklar, M. Burhan(3)
- Saydam Eker, Çiğdem(3)
- Siebel, Wolfgang(3)
- Snegovaya, Nataly Yu.(3)
- Uysal, Ibrahim(3)
- Akpinar, A.(2)
- Akpinar, Adem(2)
- Aydinçakir, Emre(2)
- Barinova, Sophia(2)
- Bektas, Osman(2)
- Bilgic, Abdulbaki(2)
- Bostan, Sedat(2)
- Bölükbas, Mehmet(2)
- Chen, Bin(2)
- Coruh, Emine(2)
- Dervisoglu, Adalet(2)
- Dogan, Nilgun(2)
- Eker, Çiğdem Saydam(2)
Yayınlar
- MakaleYalnız künye2022Scopus SJRQ3The relationship between banks’ credit quality, credit growth and social capital: evidence from Turkish banking sector
Pilatin, Abdulmuttalip; Ayaydin, Hasan
The aim of this study is to empirically examine the relationship between credit growth, credit quality and social capital of all commercial banks operating in Turkey for a period of twelve years between 2007 and 2018 on the basis of 81 provinces. In order to measure social capital on a provincial basis, the independent variable SC1 was obtained by applying principal component analysis to the variables consisting of 2 network and 2 norm variables. In addition, province-based organ donation rate was used as an alternative social capital variable. Changes in Total Loans (ΔTL), Changes in Real Estate Loans (ΔREL), Changes in Commercial and Industrial Loans (ΔCIL), Changes in Construction Loans (ΔCL), Changes in Non-Performing Loans (ΔNPL), Ratio of Non-Performing Loans to Total Loans (NPL/TL) and Ratio of Non-Performing Loans to Total Assets (NPL/TA) were determined as the dependent variable. The relationship between the level of social capital (SC1) and seven dependent variables on a provincial basis in Turkey was analyzed and measured using panel data techniques. The results of the analysis show that the relationship between the social capital level of the provinces, credit growth and non-performing loans are negative and significant. The results of the study show that the level of social capital is important and decisive in terms of credit growth and credit risk of banks.
AtıfScopus6WoS7OpenAlex12
İncele - MakaleAçık Erişim2022Scopus SJRQ2Individual Attitudes towards Immigration in Turkey: Evidence from the European Social Survey
Karapınar Kocağ, Esra; Longhi, Simonetta
One of the reasons why people hold anti-immigration attitudes is the fear that immigrants “rob jobs” of natives and decrease wages. However, academic literature finds that this is not the case. Nevertheless, in various countries, people still tend to oppose immigration. Opposition to immigration was particularly high in Turkey in the early 2000s, where almost half of the respondents to the Turkish part of the European Social Survey reported they would prefer to allow no immigrants into Turkey. This is although immigration to Turkey is very low. Turkey is becoming an important destination country as conflicts in neighboring countries force many people to flee. Therefore, understanding the opposition to immigration in Turkey is crucial for managing age immigration flows efficiently. For this purpose, we investigate the determinants of attitudes towards immigration in Turkey using the European Social Survey and Turkish population census data. The findings of the ordered probit model reveal that Turkish people tend to hold more negative attitudes towards immigration where the regional share of immigrants is higher. The little chance of contact with immigrants in Turkey through a lower share of immigrants compared to other European countries seems to influence natives’ pro-immigrant attitudes negatively.
AtıfScopus3WoS1OpenAlex6İncele - MakaleYalnız künye2022Scopus SJRQ2The first record of Scapania cuspiduligera (Marchantiophyta: Scapaniaceae) in Turkish and Southwest Asia liverwort flora supported from molecular data
Batan, Nevzat; Vilnet, Anna; Abay, Gokhan; Erata, Huseyin; Özdemir, Turan
During the recent bryological excursion to the Rize region of Turkey, Scapania cuspiduligera has been collected, it is the first record of this species to Turkey and Southwest Asia. Brief description, illustration, ecological, ITS1-2 nrDNA and trnL-F cpDNA sequence data are provided and discussed.
AtıfScopus3WoS3OpenAlex5İncele - MakaleYalnız künye2021THE EVALUATION OF SOME FACTORS AFFECTING THE QUALITY OF RAW MATERIALS IN MICRO-SCALED FOREST INDUSTRY ENTERPRISES
Komut, Osman
Forest industry enterprises that process round industrial wood are the biggest consumers of the forestry sector. In this study, micro-scale forest industry enterprises that process round industrial wood are investigated. Questionnaires based on face-to-face interviews were utilized as a data collection tool. The raw material storage areas of 48 enterprises, visited during the study, were subjected to direct observation and examination in terms of storage methods, conditions and damages in logs. The ratio of the enterprises participating in the total number of enterprises in the study area occurred as 64%. The relationships between the defined variables were analyzed with the Chi-square independence test. The analysis of variance was used to determine the relationship between independent variables. The results showed that raw material supply methods of enterprises differ, and they vary as the enterprise size grows. The annual average revenue was a variable that caused statically significant differentiation (p<0.05) in the raw material supply methods between enterprises. The results proved that the supply of raw materials with the stumpage sale method increased the risk of bark beetle damage in logs. Improper storage methods and conditions were identified as causes of significant blue discoloration damage in coniferous tree logs.
- MakaleAçık Erişim2021Effect of precautionary and normalization steps on course of COVID-19 pandemic in Turkey
Bostan, Sedat; Agac, Gokhan; Sahinöz, Saime
Aim: The COVID-19 pandemic began in China and has now spread across the whole world, and many countries such as Turkey are still fighting against this pandemic. The aim of this study was to investigate the impact of precautionary and normalization steps taken by the Turkish government on the number of confirmed cases, current cases, and deaths due to the COVID-19 in Turkey. Materials and Methods: The study used exponential regression models to estimate the number of confirmed cases, deaths, and current cases. The study data were collected from the Turkish Ministry of Health, Turkish Ministry of Internal Affairs, and the national public broadcaster of Turkey. Results: The precautions taken during the COVID-19 pandemic have caused the exponentially increasing number of cases to be brought under control and to decrease exponentially. The normalization steps taken paused the exponential decrease in the number of cases and caused the number of cases to remain flat during the summer months and then rise again. If the normalization steps were not implemented and the precautions taken continued in the same way, it was calculated that the numbers of COVID-19 current cases would be reset on June 26, 2020. The total number of deaths would remain at 4423 and the total number of confirmed cases would be 150586. Discussion: As a result, the impact of precautionary and normalization steps on the course of the COVID-19 pandemic was examined. It has been observed that the impact of these steps on the pandemic is exponential. The results provide guidelines for health authorities and administrators to take necessary precautions.
AtıfWoS1OpenAlex2İncele - MakaleAçık Erişim2021Relationship between Political and Financial Risks in Turkey: Evidence from Fourier Cointegration Analysis Regarding Institutional Structures; [Türkiye’de Politik ve Finansal Riskler Arasındaki İlişki: Kurumsal Yapılara Dair Fourier Eşbütünleşme Analizinden Kanıt]
Çiçen, Yıldırım Beyazıt
Institutional structure and quality of management are the main elements that form the political risks. Political threats are directly linked to the institutional structure and the institutional design. Political risks increase if the government mechanisms fail. Increasing institutional quality reduces the political risks and positively impacts the financial risks. Monthly data from different indices are used to analyse the relationship between Turkey's political risks and financial risks between 2002 and 2015. According to the Fourier analysis of cointegration, there is a long-term relationship between the political and financial risks. Besides, as per the Fully Modified Ordinary Least Squares (FMOLS) findings and the Dynamic Ordinary Least Squares (DOLS) models, an increase in the political risk increases the financial risk.
AtıfScopus2WoS1OpenAlex1TR Dizin1
İncele - MakaleYalnız künye2021Scopus SJRQ3Long and short-term assessment of surface area changes in saline and freshwater lakes via remote sensing
Yagmur, Nur; Bilgilioglu, Burhan Baha; Dervisoglu, Adalet; Musaoglu, Nebiye; Tanik, Aysegul
Advances in remote sensing technology enable monitoring and detection of these vulnerable water bodies that bear numerous functions and ecological services beyond their intended use. As such, valuable data and information may be provided for long and short-term analyses and stored in a database for future projections. This paper initially grouped 18 natural lakes of the Konya Closed Basin of Turkey according to their salinity level. Freshwater, saline and brackish lakes have then undergone temporal analysis for every 5-year intervals via Landsat satellite images. Freshwater lake surfaces have not changed noticeably during the inspection period; however, saline waters have decreased in surface area by 32%. Beysehir Lake constituting 94% of the freshwater category and Tuz Lake representing 97% of the saline group were selected for the short-term analysis that was monthly conducted for years 2017 and 2018 with optical and SAR images to better verify cause and effect relationship.
AtıfScopus13WoS11OpenAlex16İncele - Kitap BölümüYalnız künye2021Integrated Reporting and Combined Assurance: A Qualitative Research on the Awareness in Turkey*
Selimoglu, Seval Kardes; Yesilcelebi, Gul
Purpose: The aim of this study is to reveal the opinions of the auditors, academicians, and institutions that published integrated reports regarding the development and execution of the assurance process of integrated reports. Design/methodology/approach: For this purpose, interviews were conducted using qualitative research technique to determine awareness about integrated reporting and combined assurance. Within the scope of the research, semi-structured interviews were conducted with six auditors, five academicians, and five workers in institutions that published integrated reports. Qualitative data analysis method was used to analyze the data. Findings: As a result of the research, combined assurance process criteria were proposed in the integrated reports which in line with the opinions of the participants. Originality/value: Institutions around the world are increasingly publishing integrated reports. However, when institutions publish integrated reports, there is no clear standard or any guidance on how to ensure the reliability of these reports. It is seen that AA1000, ISAE3000, GRI Standards, and some local standards are used to provide assurance. At this point, the combined assurance model can be used for the reliability of the information in the integrated reports. Integrated reporting and combined assurance are still relatively new concepts in Turkey. Furthermore, this study is important in terms of the lack of studies on how to provide combined assurance for integrated report when scanned related literature in Turkey. Although readily integrated reporting continued in Turkey, it continues to be an area of application is still under development. In particular, the research reflects the level of integrated reporting awareness and how to ensure assurance of these reports.
AtıfScopus1OpenAlex3İncele - Kitap BölümüYalnız künye2021Public sector accounting in Turkey: Past-present-future
Yanik, Serap Sebahat; Selimoglu, Seval Kardes; Yesilcelebi, Gul; Grima, S; Boztepe, E
Government accounting shows the assets and resources of the government, the changes that occur in them, to provide the necessary information to evaluate the effectiveness of the government in revenue and expense management, and to produce the information required by economic management. In this context, the past, present, and future of the Turkish government accounting system discussed in the theoretical framework in the study.
- MakaleYalnız künye2021Scopus SJRQ2Geochronology, petrogenesis and tectonic importance of Eocene I-type magmatism in the Eastern Pontides, NE Turkey
Vural, Alaaddin; Kaygusuz, Abdullah
Eastern Pontides are hosted to many granitoids with different composition, size and age ranges from Paleozoic to Cenozoic. Of these granitoids, especially those of the Cenozoic age are commonly observed in the southern part of the Eastern Pontides, and rarely in the northern part. This paper focuses on the Eocene aged Avliyana Granitoid, located south of the Eastern Pontides, intruding into Late Cretaceous and Eocene volcanic and sedimentary rocks. The Avliyana Granitoid is mainly diorite and tonalite and composed of plagioclase, quartz, orthoclase, hornblende, biotite, pyroxene, and Fe-Ti oxides. It shows granular, locally poikilitic and micrographic texture. The Avliyana Granitoid has I-type, medium to high-K calc-alkaline, and metaluminous character, and has a narrow SiO2 contents (57–64 wt.%). The rocks are enriched in light rare earth elements (LREEs) and large-ion lithophile element (LILEs), and depleted in high field strength elements (HFSEs). Chondrite-normalized REE distributions are concave shaped (LaN/LuN = 5.87–11.92) and show negative Eu anomaly (Eu / Eu * = 0.55–0.81). Geochemical results show that plagioclase, pyroxene, hornblende, and Fe-Ti oxide fractionation are effective in the development of the rocks. The εNd(i) values of the rocks are between – 1.0 and – 0.1, 87Sr/86Sr(i) values are between 0.70531 and 0.70563, and the model ages (TDM) are between 0.79 and 0.93. U-Pb SHRIMP zircon ages of the Avliyana Granitoid rocks range from 45.60 ± 0.55 to 44.75 ± 0.36 Ma. In calculations made from zircon and apatite, the crystallization temperatures vary between 714 and 867 °C. The data revealed that the parental magma of the Avliyana Granitoid was derived from the enriched lithospheric mantle, and fractional crystallization and lesser assimilation played a role in the evolution of the rocks.
AtıfScopus16OpenAlex22İncele - MakaleAçık Erişim2020Scopus SJRQ1Air pollution, a possible risk factor for multiple sclerosis
Börü, Ulku Turk; Bölük, Cem; Tasdemir, Mustafa; Gezer, Tugce; Serim, Vedat Ataman
Objective Studies focusing attention on the effects of environmental pollution on the etiology of multiple sclerosis (MS) are on the increase. The aim of this study was to determine MS prevalence in a city home to an iron and steel factory which causes air pollution. Methods The study was designed as a cross-sectional, population-based, descriptive epidemiologic study. Eregli city, which has an iron and steel factory and proven air pollution, was screened. Additionally, Devrek city, which is a rural and clean city, located 40 km away from Eregli was assigned and results were compared. A validated questionnaire was used for screening. McDonald 2010 criteria were used to diagnose cases. Results 32 261 people were screened in Eregli, and 21 963 people were screened in Devrek. In total, 41 patients were diagnosed with clinical definite MS. Crude prevalence was found to be 96.1/100 000 in Eregli and 45.5/100 000 in Devrek. The mean age of patients was 39.8, and the female/male ratio was 1.9. Conclusion The results of this study indicate a more than double MS prevalence rate in the area home to an iron and steel factory when compared to the rural city. This supports the hypothesis that air pollution may be a possible etiological factor in MS.
AtıfWoS29OpenAlex38
İncele - MakaleYalnız künye2020Scopus SJRQ2Distinct contamination indices for evaluating potentially toxic element levels in stream sediments: a case study of the Harşit Stream (NE Turkey)
Saydam Eker, Çiğdem
This paper revealed that the level of certain potentially toxic elements (PTEs) can be reflected in stream and terrace sediments from Harşit Stream in Northeast Turkey. The potential toxicity of these elements was established by determining and interpreting the enrichment factor (EF), contamination index (Pi), ecological risk index (Eri), modified hazard quotient (mHQ), hazard quotient (HQ), and hazard index (HI). The distribution of PTEs in the sediment samples was non-uniform along the different sites of the stream. The change in concentration was attributed to the release of these elements from different sources (agricultural activities, industrial activities, and gasoline discharges). Results indicated that the stream sediments were locally contaminated by the following PTEs: Pb, As, and Cd based on EF values; Cu, Pb, Zn, As, Cd, and Hg based on Pi; Pb, Cd, and Hg based on Eri; and Pb, As, Cd, and Hg based on mHQ. According to the HQ and HI values of Pb, risks were posed to human health especially to children. Meanwhile, terrace sediments were locally contaminated as follows: Zn and As based on EF; Cu, Pb, Zn, As, and Cd based on Pi; and Zn and Cd based on Eri. The HQ and HI values of As were found to be > 1, suggesting a high chance of health risk to children. The PTE levels and the local distribution pattern revealed that agricultural activities, industrial functions, and gas stations along the stream were probable sources of toxic element contamination in sediments from the Harşit Stream. These findings can help evaluate the potential toxicity risks affecting living organisms.
AtıfScopus31WoS30OpenAlex33İncele - MakaleYalnız künye2020Scopus SJRQ1Eocene tonalite–granodiorite from the Havza (Samsun) area, northern Turkey: adakite-like melts of lithospheric mantle and crust generated in a post-collisional setting
Temizel, Irfan; Arslan, Mehmet; Yücel, Cem; Abdioğlu Yazar, Emel; Kaygusuz, Abdullah; Aslan, Zafer
Eocene intermediate to felsic plutons of different sizes and compositions are widespread in the Eastern Pontides Orogenic Belt in northern Turkey. Of these, the Taşlık Tepe pluton in the Havza (Samsun) area is fine-to-medium-grained, with granular, porphyritic, and micrographic textures, and include mafic microgranular enclaves (MMEs). LA-ICP-MS U-Pb zircon dating yielded emplacement ages of 42.9 (± 1.4) and 40.5 (± 1.3) Ma for the host granodioritic pluton and the dioritic MMEs, respectively. Petrochemically, the host pluton has I-type, high-K calc-alkaline, and metaluminous-to-slightly peraluminous features (A/CNK = 0.95–1.06). The host pluton also shows geochemical features of adakite-like rocks with high SiO2 (67–68 wt%) and Al2O3 (15.5–16.0 wt%) content and Ba/La (17–23), Sr/Y (40.7–61.6), and LaN/YbN (14.4–23.7) ratios and low Y (8.2–9.9 ppm) and YbN (3.1–4.4) contents. Whole-rock major and trace element variations suggest that fractional crystallisation played a significant role in the pluton evolution. The N-MORB normalised trace element patterns of the pluton are similar to those of MMEs with enrichment in large-ion lithophile elements, Th and Ce, and negative Nb and Ti anomalies. Chondrite-normalised rare earth element plots show moderate-to-highly enriched concave patterns (LaN/LuN = 14.2–21.6) with insignificant negative Eu anomalies (EuN/Eu* = 0.86–1.14), all of which imply hornblende fractionation during magmatic evolution. The pluton samples have 87Sr/86Sr ratios of 0.704767 to 0.704927, 143Nd/144Nd ratios of 0.512767–0.512774, εNd values of (+2.52)–(+2.65), and δ18O values of 7.9–9.7‰. The isotopic compositions of the host pluton and MMEs are similar to I-type granitoids derived from mantle sources. The MMEs show incomplete magma mixing/mingling, representing small bodies of mafic parental magma. Combined with regional studies, these new data suggest that the parental magma of the studied adakite-like pluton was generated from the lithospheric mantle and then modified by fractional crystallisation and assimilation in a post-collisional setting.
AtıfScopus33WoS30OpenAlex35İncele - MakaleAçık Erişim2020Scopus SJRQ4Cohabitant charophyte algal flora and its ecology in high-mountain lakes of the Artabel Lakes Nature Park (Gumushane, Turkey)
Şahin, Bülent; Akar, Bülent; Barinova, Sophia
The composition of charophyte taxa and their habitat preferences in water bodies of the Artabel Lakes Nature Park were investigated on 15 August 2013 and 13 August 2016. A total of 73 taxa belonging to Conjugatophyceae (Zygnematophyceae) and Klebsormidiophyceae were recorded. The genera Cosmarium (37), Staurastrum (10) and Closterium (7) were most abundant. The partly unexpected presence of certain desmid taxa, i.e., taxa characteristic of eutrophic water, was recorded. Filamentous charophytes were represented by three taxa. The Willis curve for the distribution of species to genera had a trend line of R2 = 0.9123. Bioindication, statistical methods and comparative floristic results show that water in all of the studied lakes was fresh, of low-conductivity, circum-neutral and with little organic pollution. Four groups of lakes were identified as a result of statistical comparison of their environmental and biological variables. Bioindication results can be used as references for future monitoring of the lakes in protection of the species found in the Artabel Lakes Nature Park and can also be included in the National Water Quality Standard System of Turkey.
AtıfScopus4WoS3OpenAlex8İncele - MakaleYalnız künye2020Scopus SJRQ1Eocene I-type magmatism in the Eastern Pontides, NE Turkey: insights into magma genesis and magma-tectonic evolution from whole-rock geochemistry, geochronology and isotope systematics
Kaygusuz, Abdullah; Yücel, Cem; Arslan, Mehmet; Temizel, İrfan; Yi, Keewook; Jeong, Youn-Joong; Siebel, Wolfgang; Sipahi, Ferkan
The Eastern Pontides orogenic belt in NE Turkey hosts numerous I-type plutons of Eocene epoch. Here, we report new U–Pb SHRIMP zircon ages and in situ zircon Lu-Hf isotopes along with bulk-rock geochemical and Sr-Nd-Pb-O isotope data from the Kemerlikdağı, Aydıntepe and Pelitli plutons and mafic microgranular enclaves (MMEs) to constrain their parental melt source(s) and evolutionary processes. U-Pb SHRIMP zircon dating yielded crystallization ages between 45 and 44 Ma for the studied plutons and their MMEs. The plutons range from gabbro to granite and have I-type, medium to high-K calc-alkaline, and metaluminous to slightly peraluminous characteristics. On the primitive mantle-normalized multi-trace-element variations, the plutons and their MMEs are characterized by significant enrichment in LILE/HFSE. Chondrite-normalized REE patterns of the plutons and their MMEs are close to each other and show moderate enrichment with variable negative Eu anomalies. The studied plutons have fairly homogeneous isotope composition (87Sr/86Sr(i) = 0.70502 to 0.70560; εNd(i) = +0.9 to–1.4; δ18O = +5.0 to +8.7‰, εHf(i) =–2.2 to +13.5). The MMEs show medium to high-K calc-alkaline and metaluminous character. Although the isotope signatures of the MMEs (87Sr/86Sr(i) = 0.70508 to 0.70542; εNd(i) = +0.9 to −1.1; δ18O = +5.8 to +8.0, εHf(i) = +4.3 to +10.4) are very similar to those of the host rocks. Fractionation of plagioclase, amphibole, pyroxene and Fe-Ti oxides played an important role in the evolution of the plutons. The isotopic composition of the studied plutons and MMEs are similar to I-type plutons derived from mantle sources. The MMEs show incomplete magma mixing/mingling, representing small bodies of mafic parental magma. The parental magma(s) of the studied plutons were generated from the enriched lithospheric mantle and then modified by fractional crystallisation, and lesser assimilation and mixing/mingling in the crustal magma chambers.
AtıfScopus35WoS33OpenAlex35İncele - Kitap BölümüYalnız künye2020Assessing Contribution of Climate Change on Wetlands by Using Multi-temporal Satellite Data
Musaoglu, Nebiye; Dervisoglu, Adalet; Yagmur, Nur; Bilgilioglu, Baha; Tuzcu, Aylin; Tanik, Aysegul; Filho, WL; Nagy, GJ; Borga, M; Munoz, PDC
Numerous natural lentic systems of the world are under the threat of drying due to either natural or anthropogenic activities. Natural circumstances are basically due to climate change effects remarkably sensed within the past decades. However, human-induced activities in some cases dominate over natural events due to demand of water particularly for irrigation and domestic needs. This study investigates the changes that have occurred on the water surfaces of 3 significant water bodies located in the Konya Closed Basin of Turkey. Geographically inner Anatolia region of Turkey receives half of the annual average precipitation of the overall country; on the contrary, the region is known to be an important agricultural area. The majority of fertile arable land is spared to wet agriculture necessitating vast amounts of water. As expected, all the 3 water bodies have incredibly lost their water within years. In the multi-temporal analysis of the study area, Landsat 5 TM, 7 ETM+ and 8 OLI satellite images belonging to every 10-years interval between 1987 and 2017, and corresponding meteorological data were used. Water losses in the 3 ecosystems, one is a salt production lake, Tuz (Salt) Lake, the other is a Ramsar Site (Meke Maar), and the last one is an internationally recognized wetland (Akgol), are detected. Resultantly, it is observed that only Tuz Lake has been artificially fed in the last decade as its economic value is higher than the other two systems. Meke Maar and Akgol Wetland have high ecological value; however, their original functions vanished as they have almost lost their water. It is important to state that humans’ need of water is essential; but, unconscious utilization and wrong irrigation applications lead to water scarcity. On the other hand, climate change accelerates the reduction of water resources. Satellite data coupled with ground truth measurements are accepted as modern technological tools to detect short and long term temporal changes in the water surfaces of such vulnerable water systems especially for attracting the attention of decision-makers responsible of sustainable management of water resources.
AtıfScopus1WoS1İncele - MakaleAçık Erişim2020Scopus SJRQ3Non-Diatom Algae of the High Mountain Protected Lakes in the Artabel Lakes Nature Park, Gümüşhane, Turkey
Şahin, Bülent; Akar, Bülent; Barinova, Sophia
For the first time, we studied 18 lakes of the Artabel Lakes Nature Park and revealed 154 species of non-diatoms algae from four taxonomic Divisions. Charophyta (73 taxa) prevails in the flora and mainly represented by the genus Cosmarium (37). Cyanobacteria (42), Chlorophyta (30) and Eunlenozoa (9) are also present. New records for the Turkish algae flora are represented by 31 taxa, most of which belong to Cosmarium (15) and Staurastrum (5). Rare species from benthic cyanobacteria were revealed in communities of the Artabel Lake. Statistical methods revealed a high individuality of the algae communities and divided it into two major group: Acambol–Yıldız, and Beş–Artabel, which belong to different River Basins. The altitude of the lakes appears to be the major environmental variable that controls the non-diatom algal diversity. Bioindication characterized the water of studied lakes as temperate by temperature, middle saturated with oxygen, neutral to low acidic pH, low saline, Class 2–3 of Water Quality and mesotrophic.
AtıfScopus2OpenAlex1İncele - MakaleAçık Erişim2020Scopus SJRQ2The Costs of Disability in Turkey
İpek, Egemen
In this study, the additional economic cost of disability for households is calculated using a standard of living approach (SoL) for Turkey. Firstly, the Standard of Living (SoL) index is determined using principal components analysis through the Household Budget Survey data for the year 2014. The cost of disability is estimated using ordered logit method by dividing the index into three income groups such as low, middle and high. As a result of the analysis, it is estimated that households with disabilities need additional financial support of at least 9.1% of household income in order to reach the same standard of living as those without disabled individuals. In addition, two different levels of disability, which are working life disability and daily life disability, are considered in estimating the cost of disability. While the cost caused by individuals’ disabilities in working life is 14.6% of their household's income, the ratio is 9.1% for the individuals’ disabilities in daily life.
AtıfScopus16WoS12OpenAlex19İncele - MakaleYalnız künye2020Scopus SJRQ2Medium scale earthflow susceptibility modelling by remote sensing and geographical information systems based multivariate statistics approach: an example from Northeastern Turkey
Dağ, Serhat; Akgün, Aykut; Kaya, Ayberk; Alemdağ, Selçuk; Bostancı, Hasan Tahsin
The aim of the present study was to produce an earthflow susceptibility map for the city center and environs of the province of Rize located at the Northeastern part of Turkey. The study area is the rainiest region of Turkey, and due to the triggering effect of precipitation earthflows are frequently observed in and around the study area. Besides this point, weathered rock units and steep topography accompany with precipitation for the occurrence of earthflow cases. Considering this point, an earthflow susceptibility mapping was inferred to be a necessity for the area. Parameters, such as lithology, slope gradient, slope aspect, topographical wetness index (TWI), stream power index (SPI), slope curvature, and sediment capacity index (LS) were considered to be earthflow conditioning parameters. A multi-temporal earthflow inventory map for a period of 4 years (2011–2015) was initially generated by way of remote sensing approach and field surveys. Earthflow susceptibility map was produced using the logistic regression method after which the produced susceptibility map was validated. The mapped earthflows were separated into two groups prior to modelling and validation. The first group was for training and the second group was for validation steps. The accuracy of the model was measured by fitting them to a validation set of mapped earthflows. Area under curvature (AUC) approach was applied for validation purposes. The prediction capability of the earthflow susceptibility map produced can be regarded as acceptable in accordance with the AUC values of 0.62 for the logistic regression model. Based on these results, the obtained earthflow susceptibility map can be used to mitigate hazards related to landslides and to aid in land-use planning for the Rize city center.
AtıfScopus26WoS23OpenAlex31İncele - MakaleAçık Erişim2020Scopus SJRQ3Emplacement conditions of magma(s) forming Jurassic plutonic rocks in Gümüşhane (Eastern Pontides, Turkey)
Aydinçakir, Emre; Gündüz, Ramazan; Yücel, Cem
In this study, the petrography, mineral chemistry and crystallization conditions were reported for the Alemdar and Işıkdere plutons located in limited areas in the south of the Eastern Pontides. These plutons, which trend mostly in NE-SW directions, were emplaced by cutting the Early-Middle Carboniferous-aged Gümüşhane Granitoid and Early-Middle Jurassic Şenköy formation. Petrographically, the studied plutons are compositionally fine to medium grained quartz-diorite, quartz monzodiorite and tonalite. The rocks in the plutons have granular, poikilitic, monzonitic, graphic and rare porphyritic textures with consist of plagioclase, (An05-92), hornblende (Mg# = 0.52-0.81), biotite (Mg# = 0.32-0.67), orthoclase, quartz and Fe-Ti oxide. According to thermobarometric calculations, plutons have crystallization temperatures, pressures and oxygen fugacity values ranging from 541°C to 938°C, 0.1 to 4.4 kbar, and -23 to-12, respectively. The estimated water content calculated from amphibole is between 4.4 to 7.8%. It can be concluded that the studied plutons were emplaced at mid to shallow crustal depths (~4-15 km).
AtıfScopus12WoS11OpenAlex4TR Dizin7İncele