Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Baltaci, Cemalettin(27)
- Uzun, Sevda(27)
- Yildiz, Salih(25)
- Kulakaç, Nurşen(24)
- Ayaydin, Hasan(22)
- Yilmaz, Ozgur(20)
- Bostan, Sedat(19)
- Doğan, Kadir Caner(19)
- Kenek, Gökhan(19)
- Tosunoğlu, Büşra(19)
- Akyol, Hikmet(18)
- Akyürek, Suat(18)
- Can, İbrahim(18)
- Doğru, Bülent(18)
- Hayaloğlu, Pınar(18)
- Keyifli, Nazlı(18)
- Peker, İskender(18)
- Sipahi, Ferkan(18)
- Çalışır, Gülsüm(18)
- Avcı, İbrahim(17)
- Gücer, Mehmet Ali(17)
- Pala, Fahrettin(17)
- Türkkan, Tuğba(17)
- Ulutaşdemir, Nilgün(17)
- Yildiz, Emel(17)
- Akyüz, Ahmet Mutlu(16)
- Cengiz, Ekrem(16)
- Demirağ, Hatice(16)
- Hintistan, Sevilay(16)
- Yeşilçayır, Celal(16)
- Akaryali, Enver(15)
- Kaygusuz, Abdullah(15)
- Merdan, Mehmet(15)
- Bayrakdaroğlu, Serdar(14)
- Demirbağ, Orkun(14)
- Evren, Savaş(14)
- Kahraman, Yakup(14)
- Yesilelebi, Gl(14)
- Yıldız, Barış(14)
- Ödemiş, Murat(14)
Yayınlar
- MakaleAçık Erişim2023Relationship between Institutional Quality and Corruption: The Case of Turkey
Çiçen, Yildirim Beyazit
The relationship between the level of corruption and the quality of Turkey's institutional structure was investigated in this study. Using quarterly data between 1984-2015, RALS-ADF unit root and RALS-EG cointegration tests were used to determine if there is a relationship between these variables in Turkey. Corruption level is the dependent variable, institutional quality is the independent variable, and the total production index is the control variable. The first analysis included both the coalition and single-party periods. Also, a separate analysis was carried out for the coalition period 1984-2002. There was no correlation between corruption and institutional quality in either analysis.
- MakaleAçık Erişim2023Determining the most suitable sectors in terms of the digital supply chain by integrated fuzzy MCDM approach
Gergin, Ramazan Eyuep
In this day and age, businesses come up against several challenges due to digital progresses in their supply chain. Digitalization has been expected to play an increasingly important role for both companies and the supply chains of the future. Concordantly, it is important to determine the suitability of the supply chains of the sectors for digitalization in order to cope with the difficulties that the enterprises will face in the future. The main objective of this study is to determine the suitability of the supply chains of the sectors in which medium-sized enterprises operate for digitalization. For this purpose, the criteria which affecting the constitution of the digital supply chain are determined with a comprehensive literature search. Fuzzy Analytical Hierarchy Process (FAHP) is utilized to weighting of the relevant criteria. Sectors which medium-sized enterprises are constitute the alternatives of the study. After the weighting of the criteria, in terms of digital supply chain the suitability of the sectors was evaluated via Fuzzy TOPSIS (FTOPSIS) and Fuzzy VIKOR (FVIKOR). BORDA count technique is utilized to obtain the final decision by integrating the results from these two methods. According to the results of the study, the most important criterion in terms of Global Connectivity digital supply chain was determined as the Manufacturing sector according to FTOPSIS and the Health sector has been determined as the most suitable sector for digitalization according to FVIKOR. As to BORDA Count method, results show that the manufacturing sector is the most suitable sector for digitalization in the general ranking.
AtıfWoS1OpenAlex1TR Dizin1
İncele - MakaleAçık Erişim2023How Does Being Trusted Affect Sharing? Findings from the Ultimatum Game
Çiçen, Yildirim Beyazit
According to economic models, individuals are rational, possess full knowledge, and strive to maximize their utility beyond their actual characteristics. Nevertheless, in the real world, people shape their behavior within a social structure and can display altruistic attitudes. This study investigates how trust facilitates sharing among individuals. To determine this, the Ultimatum Game was conducted with 412 participants. Three cases were determined, and the bidder was instructed to divide 10 thousand TL first in the typical game. Afterward, it was said that the other person was in need, and the bid was requested to be renewed. At the last stage, bids were received if there was any doubt about the needy. According to the typical game, people are more empathetic towards those in need and offer 6667 TL rather than 4264 TL. However, when a question of reliability is raised, 4658 TL is offered regardless of need. The findings show that the neoclassical economics concept of homo economicus, which seeks to maximize utility, is not valid in real life.
- MakaleAçık Erişim2023The Culture of Living on Screen and the Audience-Human as Screenshot
Demir, Sertac Timur
This paper asserts the idea that everyday life is screened while screens are humanised. As a matter of fact, the screens, which once consisted of detached mechanisms limited to certain places and positioned in front of the audience, at this point, surround the spaces and people. Televisions, mobile phones, tablets, laptops, desktop computers, automobile screens, smart technologies, and flashing billboards are reshaping the connections of modern individuals with the space they live in, the time they feel, the relationships they develop, and their own beings. So much so that the screens that are connected to almost all devices and organize daily life entirely cease to be a platform for viewing images and turn into a kind of spectator's eye. In this regulation, the modern human performs many vital acts from working to having fun, from learning to experiencing, from adapting to resisting not through the screen as it once was, but now as the screen. This screen culture, which basically imitates and perhaps targets the eye, has become one of the norms of digital life. The theoretical framework of this research, which tries to see both the premises of the rapid transformation in question and to trace the ambiguous course, consists of the works of pioneering thinkers such as Gunther Anders, Jean Baudrillard and Byung-Chul Han. For this purpose, in this qualitative study, sociological film analysis is carried out through the episode of Fifteen Million Merits (2011) of the series Black Mirror, one of the Sci-Fi examples that have become very popular in recent years. This episode is notable in terms both of embodying and of nurturing discussions about the screen society.
- MakaleAçık Erişim2023Analysis of Basin Characteristics for Stream Management Using GIS: A Case Study of Gümühane Micro-Watershed
Çakir, Gunay
Aim of study: Topography and climatic conditions have effected in determining the processes of the streams of the micro-watershed. Nowadays, the management plans were made for water and soil protection measures in the basins. Area of study: This study was carried outto characterize and prioritize the streams of the Gumushane upper Harsit micro-watershed using a GIS-based spatial approach. Material and methods: Fundamental watershed characteristics including drainage density, slope, land use types, and stream class were evaluated and interpreted for the Gumushane micro-watershed. Calculatea comprehensive value for each parameter, drainage density (Dd), flow frequency (Fs), slope (S), length of land flow (Lg), and land use (Lu) was used. Main results: The drainage density, stream flow frequency, and form factor of the microwatershed are from-4 to 26. Finally, the weighted rankings were summarized, and all micro-watersheds were categorized to five classes based on the risk index as very low risk, low risk, medium risk, high risk, and very high risk. This risk map overlaid to land use type maps in GIS where risk areas were evaluated in the finalrisk results. The 739 ha productive forest area within very high-risk areas was changed to non-risk parameters. Highlights: The carrying capacity of streams was calculated using the stream density of streams in the Gumushane micro-watershed. The risk values produced by streams that pass through neighborhoods where land use values for preventing erosion are present.
AtıfWoS1OpenAlex2TR Dizin1İncele - MakaleAçık Erişim2023Technological Convergence in Emerging Economies: An Investigation with Unit Root Tests
Zuhal, Mustafa
Technological developments play an important role in economic growth and development and form the basis in the convergence of socioeconomic factors between developed and developing countries, especially income. At the same time, developing countries aim to catch up with the leading countries by improving their technological capabilities, and examining the technological convergence between countries, especially developing countries, is essential at this stage. This study aims to examine whether technological convergence occurs in 10 emerging economies. For this purpose, the study analyzes technological convergence over the variables of number of patents, labor productivity, and total factor productivity using Pesaran's (2007) cross-sectionally augmented Dickey-Fuller (CADF) and seemingly unrelated regression augmented Dickey-Fuller (SURADF) unit root tests. According to the results of the analysis, although there is convergence in some countries, it does not confirm in general technological convergence among the countries.
AtıfWoS2İncele - MakaleYayıncıda açık erişim2023PSYCHOLOGICAL EFFECTS AND PSYCHOLOGICAL RESILIENCE OF THE COVID-19 OUTBREAK IN TURKEY
Ulutasdemir, Nilgun; Yigitalp Rencber, Sureyya; Öztürk Çopur, Ebru
The population of the cross-sectional and descriptive study consisted of individuals living in Turkey between 19 May and 19 July 2020. Due to the pandemic, 3035 people who agreed to participate in the research were reached via online survey method. Sociodemographic data form and Beck's Anxiety Inventory were used as data collection tools. 59.1% of the participants in the study are women and the average age is 35.16 +/- 13.4. 0.8% of individuals stated that they were infected with coronavirus, 21.4% stated that they had a family member or close circle affected by coronavirus disease, 6.3% stated that they had relatives who died from this disease, and 9.9% stated that they applied for quarantine as a suspected patient. While 89.3% of individuals stated that they stayed at home, 79.2% stated that they had been away from home for the last two weeks. It was found that the mean scores of Beck's Anxiety Inventory were higher in women, those in the older age group, those who were married, those with higher education levels, and those who perceived their socioeconomic status as low. In this study, it was determined that individuals living in Turkey experienced high levels of anxiety due to coronavirus.
- MakaleAçık Erişim2023ANOTHER APPLICATION OF SMARANDACHE BASED RULED SURFACES WITH THE DARBOUX VECTOR ACCORDING TO FRENET FRAME IN E3
Şenyurt, Süleyman; Canli, Davut; Çan, Elif; Mazlum, Sümeyye Gür
In this study, we first define the Smarandache curves derived from the Frenet vectors and the Darboux vector of any curve. Then, we construct new ruled surfaces along these Smarandache curves with the direction vectors obtained from the Frenet vectors and the Darboux vector, and give the equations of these surfaces. In addition, we calculate the Gaussian and mean curvatures of these surfaces separately and present the conditions to be minimal and developable for these surfaces. Finally, as an example, we obtain ruled surfaces whose base curves are Viviani’s curves and plot the graphics of these surfaces.
AtıfScopus4WoS3OpenAlex5TR Dizin1
İncele - MakaleAçık Erişim2023Analysis of The Causality Relationship Among Digitalisation, Unemployment Rate, and Divorce Rates: A Research on Türkiye; [Dijitalleşme, İşsizlik Oranı ve Boşanma Oranları Arasındaki Nedensellik İlişkinin Analizi: Türkiye Üzerine Bir Araştırma]
Koç, Pınar; İzgi-şahpaz, Kadriye
This study investigates the relationship between digitalisation, unemployment, and divorce rates in Türkiye by using the Fourier Toda Yamamoto Causality Test from 2007 to 2021. International Digital Economy and Society Index (I-DESI) has been used to indicate digitalisation. The results suggest that there is unilateral causality from digitalisation to divorce rates. However, there is no causality linkage between digitalisation and unemployment rates for the period 2007-2021. Moreover, there is no causal connection between unemployment rates and divorce rates. The findings show that digitalisation affects divorce rates by disrupting family communication.
AtıfScopus3WoS4OpenAlex8TR Dizin4İncele - MakaleAçık Erişim2023Reflection of COVID-19 in The Context of Posttraumatic Growth in Turkish Society
Yiğitbaş, Çağla; Elkoca, Ayşe; Özcan, Handan
The aim of the study was to determine whether the COVID-19 pandemic had a positive impact on posttraumatic growth and to identify the influential factors. Quantitative method was used. A descriptive cross-sectional study was conducted. Permissions were obtained before the research. The sample size was calculated with the formula t2xs2/d2. After the calculation, 106 people who consented to participate in the study were reached. Data were collected by convenience sampling method. The mean age of the participants was 31.61 ± 11.05 years. 58.5% of the participants were female and 44.3% were married. The rate of those who said they had a high income was 9.4%. More than half of the participants stated that they experienced anxiety due to the pandemic, and more than half stated that they had this disease at home. Those who reported that they were not currently working, those who thought that their mental health was affected, and those who reported experiencing anxiety due to the pandemic had higher scores on the Posttraumatic Growth Inventory. Posttraumatic growth and its sub-dimensions were found to make a difference in terms of some sociodemographic characteristics. Repeating this research in different cultural societies will be decisive and clarifying in terms of results.
- MakaleAçık Erişim2023Determinants of Individual Worries on Food Insecurity in Afghanistan
Karapınar Kocağ, Esra
According to the United Nations (UN), more than 30 per cent of the world’s population experienced food insecurity moderately or severely in 2020 and Sustainable Development Goal 2 clearly claims to end hunger by 2030. Afghanistan within those regions with severe food insecurity has become prominent as both environmental deterioration due to climate change and ongoing conflict affects this situation twice as much. Using Food Insecurity Experience Scale (FIES-2018) data that was provided by Food and Agriculture Organization of the United Nations (FAO), this paper provides evidence on the determinants of individual worry on having enough food with a sample of 998 individuals through a probit model. Findings reveal that having a college degree significantly reduces the probability of being worried not to have enough food. Further, living in a rural area increases this probability, while being in a richer income quintile and having one more adults in the household decreases it. Empirical evidence of this research suggests a few policy implications. Education should be generalised in the society; and production techniques in the rural areas should be improved to increase the level of production and to save the environment. These efforts might increase the wage level that would help to increase household income to alleviate food insecurity.
AtıfScopus2OpenAlex2İncele - MakaleAçık Erişim2023Scopus SJRQ3Energy, exergy analysis and optimization of insulation thickness on buildings in a low-temperature district heating system
Terhan, Meryem; Abak, Sena Saliha
In the study, energy and exergy analysis of the buildings on a campus in Turkey are conducted by using actual operating data and taking measurements in the district heating system as a case study. The energy and exergy demands, losses that stem from all buildings are calculated according to average daily outdoor temperature data. Due to the high heat losses in the buildings, determining the optimal insulation thickness for the exterior wall should be investigated. Therefore, optimal insulation thicknesses, energy savings, fuel consumptions and payback periods of the insulation material on the exterior wall of the building are examined by using Life Cycle Assessment and P1–P2 method for natural gas. Optimal insulation thicknesses are calculated for different insulation materials such as XPS, glass wool, rock wool and EPS for the climatic regions (HDD=800–4250°C days). According to average exergy losses from the building components per unit area, the average total exergy loss is calculated as 2.39×10-2 kW/m2.year and 1.42×10-3 kW/m2 (5.92%) of this loss stems from the exterior walls, 1.93×10-3 kW/m2 (8.07%) from the floors, 7.37×10-4 kW/m2 (3.08%) from the roofs, 1.58×10-2 kW/m2 (65.99%) from the windows and doors, 4.04×10-3 kW/m2 (16.92%) from the ventilation with infiltration. Energy requirement values of the building are found between 2.68–25.70 kWh/m3 towards from the warmest to the coldest climatic region for the uninsulated wall. In the un-insulated state, fuel consumption varies between 1.93-18.48 m3/m2 from the warmest to the coldest region. The optimal insulation thickness values of the building’s exterior wall are calculated as between 2.3–10.0 cm according to different climatic regions. In-state of exterior wall insulation of 3 cm, fuel consumption decreases by 46.63%–53.46% compared to different insulation materials and climatic regions compared to the un-insulated state
AtıfScopus4WoS4OpenAlex6TR Dizin1İncele - MakaleAçık Erişim2023Detection of buried objects with different material properties by ground penetrating radar (GPR) method; [Farklı malzeme özelliklerine sahip gömülü nesnelerin yer radarı (GPR) yöntemiyle tespit edilmesi]
Sari, Mahmut
GPR which permits the capture of high-resolution subterranean data, has developed into a key geophysical technique for determining the depth, geometry, boundaries, and volumes of buried shallow objects. In this study, the detectability of the location, size, and physical property parameters of buried objects with the ground radar method was reveal ed by creating a laboratory environment in real field conditions. For this purpose, a realistic laboratory environment with a depth and length of 5 m was created on the filled soil material at the test site, and buried objects with different material properties were placed. In addition, by adding sand material to the middle part of the soil fill material in the test area, its situation in different layers was tried to be examined. GPR data were collected on the models using the RAMAC CU II system and a 500 MHz center frequency shield antenna. After processing the data, reflected/scattered electromagnetic (EM) wave fields on the radargram of a profile perpendicular to the buried objects were examined. In this way, the positions, sizes, physical properties (types) of buried objects along with their depths and their situations in different layer environments have been revealed. According to the results, the peak width of hyperbolas and the sizes of buried objects were determined on the processed radargrams. The types of buried objects and their situations in different layer environments are clearly revealed. The scattered wave field amplitudes of the plastic pipe (A and C regions) from the reflection coefficients are substantially lower than the scattered wave field amplitudes of the iron pipe (B region) from the buried objects. It is thought that the strong reflections extending from the C region to the deep on the radar are caused by the lead blocks in the plastic pipe.
- MakaleAçık Erişim2023Scopus SJRQ2Geographic information system approach in evaluating the geotechnical properties of soils: A case study of Oymaağaç in Kayseri; [Zeminlerin geoteknik özelliklerinin değerlendirilmesinde coğrafi bilgi sistemi yaklaşımı: Kayseri Oymaağaç örneği]
Acar, Mehmet Cemal; Kaya, Dilek
Kayseri, the ninth biggest city in Turkey, the regions opened to the ongoing construction of residential areas are expanding rapidly parallel to population growth. Soil improvement works are carried out in areas with the poor bearing capacity of foundations and in regions that are not suitable for safe construction. This event causes severe economic losses in urban development. This study proposes a (Geographic Information System) GIS-based approach to comprehensively understand the research area's underground conditions, predetermine the zones opened for construction by considering the parameters affecting the foundation of the buildings, and create an informative geotechnical model with visualization technology. For an exemplary application, a database was created with ArcGIS in the Kayseri Oymaağaç location, and geological and geotechnical data were combined. The soil properties of this one million five hundred thousand square meter area opened for new settlement were analyzed in a GIS environment. The variation of SPT-N values measured in 60 boreholes in the field with depth, soil types, groundwater levels, and Vs data were used to combine the data, and related maps were drawn. Then, maps of the liquefaction of the soil in a possible earthquake and visual maps showing the bearing capacity of the foundations were created. This study will offer the best and most reliable land-use scenarios and in situ soil properties to decision-makers such as engineers, government agencies and disaster management. It will contribute to making accurate and fast decisions in urban planning. In addition, it will also be able to use as a tool for risk management in emergencies.
AtıfScopus2WoS2OpenAlex2TR Dizin2İncele - MakaleAçık Erişim2023Scopus SJRQ2A study on the magnetite skarn mineralization (Gümüşhane, Türkiye): a magnetic survey
Sipahi, Ferkan; Sadiklar, M. Burhan; Gücer, Mehmet Ali; Aydin, Ali; Kara, Rasim Taylan
Iron (Fe)-skarn mineralizations (Çambaşı, Dereli, Eğrikar, Karadağ, Kopuz, Sekü, Donguldere, Arnastal, Özdil, Ögene, İkizdere, Ovit Dağı, Kartiba, etc.) in the eastern part of the Pontides (NE Türkiye) are accommodated in the Pontide paleomagmatic arc and the eastern part of the Pontides Metallogenic Belt containing numerous various deposits. Fe-skarn mineralization around the Arnastal Plateau (Gümüşhane-Türkiye) is fragmentary in this area, which is covered with plants (grasses, flowers, etc.). Thus, it was attempted to describe the subsurface structures and Fe mineralization using an interpretation of the available geological and existing magnetic data in this area. Granitoid and volcano-sedimentary series (Upper Cretaceous) outcrop in the study area. These volcanosedimentary series consist of limestone, sandy limestone, marl, andesite, quartz andesite, basalt, and their equivalent pyroclastics. They include a thin layer of the red limestone (Upper Cretaceous) and olistolith recrystallized limestones (Jurassic-Lower Cretaceous). Zigana granitoid, intruding into all of these rocks, is high-K calc-alkaline and metaluminous and is classified as quartz monzonite, monzogranite, granite, and syenogranite as a result of its modal composition. Contact pyrometasomatic mineralization occurs in between the limestone and granitoids in the Arnastal Plateau. In addition to petrographic and mineralogical studies, magnetic methods were applied to an area of approximately 10 km2 to find any covered Fe deposits. Magnetic susceptibility values measured on the outcropped rocks ranged from 1 to 34 (10–7 SI) for limestone, 78 to 3750 (10–7 SI) for basalt, and 105 to 3946 (10–7 SI) for granitoids. It is considered that these ranges express the alteration (physical or chemical) of the rocks, their homogeneity, and the lack or presence of Fe minerals. The magnetic survey was conducted along a study area measuring 12,075 m long with 25 and/or 50 m station spacing. Processing of the magnetic data revealed the presence of eight buried Fe ores that could represent either massive or disseminated mineralization between the Sarıtaş and Kurtdere plateaus. Magnetite ore bodies may be present from the surface to a depth of approximately 15–25 m inside the limestone. In addition to the identification of new magnetite ore mineralization or bodies, a new geological map was designed by determining probable formation boundaries with this magnetic survey.
AtıfScopus3WoS2OpenAlex3TR Dizin1İncele - MakaleAçık Erişim2023Scopus SJRQ4Design and implementation of a real-time demonstration setup for dynamic highway tunnel lighting control research studies
Çakmak, Recep; Dündar, Ayhan
This study presents the design and implementation of a computer-based real-time demonstration setup for dynamic highway tunnel lighting control research studies. The energy-efficient and controllable lighting systems stand out worldwide because of energy efficiency objectives and carbon footprint reduction goals of the countries. An LED (Light Emitting Diode) armature-based highway lighting systems are frequently utilized in recent years due to lighting efficiency, energy efficiency, long life, environmentally and cost-friendly structure of the LEDs as well as zero ultraviolet emissions of them. In this study, the LED-based dynamic tunnel lighting control approach has been implemented through the proposed demonstration setup which is a typical real-time software-controlled hardware. The parts of the proposed demonstration setup have been introduced and detailed to help with some upgrade studies in the future. The demonstration setup has been tested in some case studies, then the obtained results have been discussed and introduced. In the future, the proposed system can be upgraded and utilized for advanced control studies thanks to its computer-based and simulation environment connection capability.
AtıfScopus5TR Dizin1İncele - MakaleYayıncıda açık erişim2023Scopus SJRQ4Comparison of online and face-to-face exams conducted in Physics I course in higher education
Ural, Mustafa Nuri; Takaoğlu, Zeynep Başkan
The coronavirus pandemic has affected most fields, including education, and most lessons have had to be conducted as distance education. In this study, it is aimed to compare student success in face-to-face exams with that in distance exams in the Physics I course. The sample consisted of 167 students who took a multiple-choice exam in distance education in the 2020-2021 academic year and 155 students who took the multiple-choice exam in face-to-face education in the 2019-2020 academic year. In the first phase of the study, the questions asked in both types of exams were classified according to Bloom’s taxonomy, and then descriptive and comparative statistics were used. As a result, according to Bloom’s taxonomy, the majority of the questions asked were at the application level. In the statistical analysis, it was determined that the averages of both groups were close to 45 out of 100, and there was no significant difference between the group averages as a result of the t-test. Accordingly, it has been concluded that the use of online exams during the pandemic as an alternative to face-toface exams in normal processes will not make a significant difference.
AtıfScopus2OpenAlex3İncele - MakaleAçık Erişim2023Investigation of changes in geomechanical properties of sandstones under different saturation and anisotropy conditions: Example from Gümüşhane (NE Türkiye); [Farklı doygunluk ve anizotropi koşullarında kumtaşlarının jeomekanik özelliklerindeki değişimlerin incelenmesi: Gümüşhane örneği (KD Türkiye)]
Gültekin, Zarife; Dağ, Serhat
gIn this study the changes in various geomechanical properties were studied for sandstones cropped out at the Mescitli region of the Gümüşhane city under different saturation and anisotropy conditions. For this purpose, 225 specimens were prepared considering the lamination planes of those were chosen to have orientation of 0, 30, 45, 60 and 90° relative to loading direction. Index properties of the sandstones such as dry unit weight (dryg), saturated unit weight (sat), water absorption by weight (Aw) and water absorption by volume (Av) were assigned. In accordance with the objective of study P wave velocity, uniaxial compressive strength and indirect tensile strength values were determined based on different saturation and anisotropy conditions. It was noted as a result of the observations carried out that specimens parallel to lamination have higher wave velocities in general when compared with specimens that are perpendicular to lamination planes. While uniaxial compressive strength values for sandstones are high for specimens which are parallel and perpendicular to lamination, the lowest strength value was observed in specimens with an anisotropy angle of 30°. In addition, it was also observed that the strength values decrease at a significant level with increasing saturation conditions. Strength anisotropy ratio (RUCS) for sandstones varies between 1.28–1.49 based on different saturation conditions. Similarly, while indirect tensile strength values were higher in specimens that were parallel and perpendicular to lamination, they were lower for other anisotropy orientations. Indirect tensile strength values also decreased with increasing degree of saturation.
AtıfScopus1OpenAlex1TR Dizin1İncele - MakaleAçık Erişim2023The Effect of Foreign Aid and Governance on Economic Growth; [Dış Yardım ve Yönetişimin Büyüme Üzerindeki Etkileri]
Hayaloğlu, Pınar; Tümay, Muhammed
Foreign aid is essential in meeting the capital needs of countries that need more resources. However, in the literature, besides the view that foreign aid encourages economic performance, opinions suggest that it has adverse effects on recipient countries. Some ideas argue that the positive impact of foreign aid in recipient countries depends on the institutional quality level of the nations. We examine the relationships between foreign aid, the quality of governance, and economic growth using the dynamic panel data analysis method. The empirical analysis includes samples of 78 low-income countries that used foreign aid from 2000-2019. According to the findings, foreign aid affects economic growth negatively in sample countries. In addition, we find a positive relationship between the quality of governance and economic growth. In line with these findings, we can state that improvements in governance quality will positively impact economic development in the sample nations.
AtıfScopus2WoS2OpenAlex2İncele - MakaleAçık Erişim2023Scopus SJRQ4Uranium migration and radioactive characteristics of the Sarıçiçek and Sarıhan Granodiorites
Altundaş, Suna; Çınar, Hakan
The radionuclide concentrations of eU (ppm), eTh (ppm), K (%) and dose rate values were measured in Sarıçiçek (Gümüşhane) and Sarıhan (Bayburt) granodiorites for a duration of 5 minutes at each of 532 measurement points. The radioelement ratios (eU/eTh, eU/K, and eTh/K) indicating the origins of the rocks, the geochemical indicators (Ume, F parameter, and eU-(eTh/3,5) rate) showing the uranium mobility and the radioelement concentrations were calculated and mapped within the study areas. The average K, eU, and eTh concentrations were calculated as 2.98%, 3.15 ppm, and 12.45 ppm for Sarıçiçek granodiorite, and 1.83%, 2.73 ppm, and 13.6 ppm for Sarıhan granodiorite, respectively. Higher radioactivity values were observed in basaltic, sedimentary, and ultramafic rock combinations within the granodiorite masses. In the classification according to radioelement ratios, it was concluded that the rocks in the study areas formed as a mixture of upper mantle and crustal materials. In both study areas, there was uranium transport from the granodioritic masses into the surrounding rocks, and accordingly, the rocks in the surrounding formations were enriched in uranium. As a result, radioactivity levels, rock formation origins, and uranium transport of both granodioritic masses and rocks in the surrounding formations were determined by evaluation with radioelement concentration values and ratios and migration parameters. The study areas were characterized by associating them with geology in light of radioactive data.
AtıfScopus2OpenAlex3TR Dizin1İncele