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Erişime Açık

The Effects of Oil Price Shocks on Clean Energy and Oil and Gas Stock Returns

UÇKUN ÖZKAN, Ayşegül

This study empirically examines how fluctuations in oil prices affect the stock returns of clean energy and oil and gas companies between 2001:01 and 2022:06. Our results show that a negative oil supply shock affects the stock returns of clean energy companies positively. In contrast, an oil-specific demand shock negatively affects them. The findings also reveal that an increase in oil prices owing to an oil-specific demand shock tends not to improve the stock returns of oil and gas companies. Consequently, the results indicate that oil and clean energy are not alternatives.

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The impact of investor attention on green bond returns: How do market uncertainties and investment performances of clean energy and oil and gas markets affect the connectedness between investor attention and green bond?

UÇKUN ÖZKAN, Ayşegül

This paper empirically investigates the spillover between investor attention and green bond returns by utilizing the connectedness approach. We will examine the impact of uncertainty in the stock, bond, and energy markets, as well as the success of clean energy, oil, and gas investments, on the relationship between green bonds and investor attention. We find that there are positive but small spillovers between investor attention and green bond returns. Besides, the connectedness between investor attention and green bond market performance is stronger in the short run than in the long run. Furt ...Daha fazlası

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Facial emotion recognition research in the hospitality and tourism industry: a thematic content analysis

KEMENT, Üzeyir | ÇAVUŞOĞLU, Muhittin | BAŞAR, Berkan | KÜÇÜN, Nihan Tomris

Purpose The purpose of this study is to conduct a thematic content analysis of facial emotion recognition (FER) research within the context of the hospitality and tourism industry. Through this analysis, the study aims to identify key themes, trends and implications of the utilization of FER technology in enhancing customer emotions and experiences within hospitality and tourism settings. Design/methodology/approach This is qualitative research that utilizes thematic content analysis. The research data were obtained from the Scopus database. A total of 45 articles (titles, abstracts and keywor ...Daha fazlası

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The Energy Cost Comparison Using Mixed Integer Linear Programming and Simulated Annealing Method in Smart Home

GÜLER, Emre | BAŞARAN FİLİK, Ümmühan

Smart home energy scheduling problem is a significant subject in power system to avoid extra expenditure. In this work, the scheduling problem is realized using mixed integer linear (MILP) programming and simulated annealing (SA) method. MILP is one of the integer optimization method and SA is a strong technique for solving hard combinatorial optimization problems. Various types of electricity tariff is applied from country to country. In Turkey, one term and three term tariffs (electricity prices are divided into three parts; off-peak hours, mid-peak hours on-peak hours) are used. In this stu ...Daha fazlası

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Comparison of decision-making approaches to prioritization of clean air action plans for sustainable development

ÇALIK, Ahmet

Background: Clean air action plans have been prepared and are still being implemented in Turkey to control and prevent air pollution, and improve the air quality. The plans reveal a picture of the current situation and available inventory information. However, in order to implement the identified plans in real life, they need to be prioritized. This study aimed to identify and prioritize clean air action plans for Turkey using a framework of both fuzzy and crisp evaluations. Methods: In this study, priorities of the plans were identified and analyzed with a decision-making model. A three-step ...Daha fazlası

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Energy Management of Disaster Shelter Centres Established in the Recent Earthquakes in Turkey

ŞAHİNER, Muammer | TUNÇEZ, Fatma Didem

Natural disasters create disasters stop human activities, destroy homes, businesses and the environment. Disasters can happen without warning and deprive hundreds or even thousands of people of drinking water, heating, lighting, communications and electricity services. Turkey has experienced the last three important disasters. 6702 buildings in the Erzincan earthquake, 48,666 in the Van earthquake, 3,200 in the Elazığ and Malatya earthquake, 90,813 buildings in the İzmir earthquake were destroyyed/heavily damaged, and a long-term power outage was experienced in the city center, towns and villa ...Daha fazlası

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Atdişi Mısır (Zea mays indentata Sturt.) Genotiplerinde Verim ve Verim Unsurlarının Genetik Analizi

ÖZDEMİR, Elif | SADE, Bayram

The research was conducted during 2015 – 2016 growing seasons at SUAF (Selcuk University Agriculture Faculty Crop Science Department) Prof. Dr. Abdulkadir AKCIN trial area. Seven inbred lines (3.2, 3.4, 3.6, 14.2, 14.20, 14.21, 14.26), whose all self – pollination and selection stages were done in Middle Anatolian Region conditions, and 3 tester lines (FRMo 17, FRB 73, ADK 451) were hybridized according to line × tester mating design and 21 hybrid corn combinations were produced in year 2015. Lines, testers and progenies were sown according to “Randomised Complete Block design” with three repl ...Daha fazlası

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A Novel Interactive Fuzzy Programming Approach for Optimization of Allied Closed-Loop Supply Chains

ÇALIK, Ahmet | PEHLİVAN, Nimet Yapıcı | PAKSOY, Turan | WEBER, Gerhard Wilhelm

In recent years, the relationship between companies and suppliers has changed with the continuous rise in environmental awareness and customer expectations. In order to fulfill customers’ needs, the actors in a Supply Chain (SC) network sometimes compete and sometimes cooperate with each other. In SC management, both competitive and collaborative strategies have become important and have required different points of view. In a collaborative environment, companies should strive for common targets with mutual relationship. After managers decided to share their resources, some positive effects ha ...Daha fazlası

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Comparison of maize lines and their test crosses according to grain yield and some physiological properties

ÖZDEMİR, Elif | SADE, Bayram

This study evaluated 7 inbred lines of maize (Zea mays L.), 3 testers, and 21 hybrids produced using the line × tester mating design. The study was conducted in Konya, in The Central Anatolia Region of Turkey. CD (coefficient of determination) values were calculated to detect the effect of inbred lines on grain yield and other physiological properties of the test crosses. The mean values of all the parameters of the genotypes were evaluated using the Duncan’s multiple range test for grouping progenies and parent groups. The CD values between parent groups and progenies were statistically signi ...Daha fazlası

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Time and volume-ratio effect on reusable polybenzoxazole nanofiber oil sorption capacity investigated via machine learning

OFLAZ, Kamil | OFLAZ, Zarina | ÖZAYTEKİN, İlkay | BASTUGAN, Rabia

Diesel oil sorption capacities (DOSCs) of polybenzoxazole/polyvinylidenefluoride nanofiber mats with four different groups (-O-, -S-S-, phenylene anddiphenylene) in the main chain structures were investigated. Different experi-mental duration and diesel-oil/tap-water volume ratio pairs were used for dieseloil sorption. No degradation was observed in the nanofiber mat structures afterdiesel oil sorption. The characterizations of polybenzoxazole (PBO) nanofiberswith high diesel oil selectivity were performed by scanning electron microscopy,atomic force microscopy, Fourier transform infrared spec ...Daha fazlası

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Multidimensions of poverty for agricultural community in turkey: Konya province case

KAN, Mustafa | OĞUZ, Cennet | KAN, Arzu | ERGUN, Hüseyin | DEMİRÖZ, Emel

Poverty is a multi-dimensional global phenomenon. It encompasses health, housing, education, and social exclusion as well as simple incomes and expenditures. Multidimensional poverty is currently at the heart of many theoretical, empirical and institutional debates. The study was carried out in a rural settlement of Konya province in Turkey to determine the rural population’s poverty structure and to quantify different general characteristics of both the poor and non-poor population according to the poverty line (relative poverty based household income-monetary approach) and asset based wealth ...Daha fazlası

6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve cerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.

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