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Anadolu University

UniversityEskişehir, Türkiye

Research output, citation impact, and the most-cited recent papers from Anadolu University (Türkiye). Aggregated across the NobleBlocks index of 300M+ scholarly works.

Total works
19.5K
Citations
565.6K
h-index
234
i10-index
11.3K
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Anadolu UniversityAnadolu Üniversitesi

Top-cited papers from Anadolu University

Emergency remote teaching in a time of global crisis due to CoronaVirus pandemic
Aras Bozkurt, Ramesh C. Sharma
2020· Zenodo (CERN European Organization for Nuclear Research)1.7Kdoi:10.5281/zenodo.3778083

Editorial: Emergency remote teaching in a time of global crisis due to CoronaVirus pandemic

What if the devil is my guardian angel: ChatGPT as a case study of using chatbots in education
Ahmed Tlili, Boulus Shehata, Michael Agyemang Adarkwah, Aras Bozkurt +3 more
2023· Smart Learning Environments1.5Kdoi:10.1186/s40561-023-00237-x

Abstract Artificial Intelligence (AI) technologies have been progressing constantly and being more visible in different aspects of our lives. One recent phenomenon is ChatGPT, a chatbot with a conversational artificial intelligence interface that was developed by OpenAI. As one of the most advanced artificial intelligence applications, ChatGPT has drawn much public attention across the globe. In this regard, this study examines ChatGPT in education, among early adopters, through a qualitative instrumental case study. Conducted in three stages, the first stage of the study reveals that the public discourse in social media is generally positive and there is enthusiasm regarding its use in educational settings. However, there are also voices who are approaching cautiously using ChatGPT in educational settings. The second stage of the study examines the case of ChatGPT through lenses of educational transformation, response quality, usefulness, personality and emotion, and ethics. In the third and final stage of the study, the investigation of user experiences through ten educational scenarios revealed various issues, including cheating, honesty and truthfulness of ChatGPT, privacy misleading, and manipulation. The findings of this study provide several research directions that should be considered to ensure a safe and responsible adoption of chatbots, specifically ChatGPT, in education.

The Rise of the Network Society - The Information Age: Economy, Society, and Culture
Taner Kızılhan, Sevil Bal Kizilhan
2016· Contemporary Educational Technology1.2Kdoi:10.30935/cedtech/6177

Castell’s book is the first part of his milstone “The Information Age: Economy Society, and Culture” work. The author states that, the triology was prepared to be a single book, but then with the contributions of the editor, it was divided into three books by making each part of the study a separate book. In this particular book, Castells presents an easily understandable and comprehensive analysis by examining the economic, social, and cultural changes that caused by the Network Society. He does this by being as realistic as possible and reaching a clear conclusion by supporting all of his claims with various statistics and examples.

Role of Reactive Oxygen Species in Cancer Progression: Molecular Mechanisms and Recent Advancements
Vaishali Aggarwal, Hardeep Singh Tuli, Ayşegül Varol, Falak Thakral +4 more
2019· Biomolecules1.2Kdoi:10.3390/biom9110735

Reactive oxygen species (ROS) play a pivotal role in biological processes and continuous ROS production in normal cells is controlled by the appropriate regulation between the silver lining of low and high ROS concentration mediated effects. Interestingly, ROS also dynamically influences the tumor microenvironment and is known to initiate cancer angiogenesis, metastasis, and survival at different concentrations. At moderate concentration, ROS activates the cancer cell survival signaling cascade involving mitogen-activated protein kinase/extracellular signal-regulated protein kinases 1/2 (MAPK/ERK1/2), p38, c-Jun N-terminal kinase (JNK), and phosphoinositide-3-kinase/ protein kinase B (PI3K/Akt), which in turn activate the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), matrix metalloproteinases (MMPs), and vascular endothelial growth factor (VEGF). At high concentrations, ROS can cause cancer cell apoptosis. Hence, it critically depends upon the ROS levels, to either augment tumorigenesis or lead to apoptosis. The major issue is targeting the dual actions of ROS effectively with respect to the concentration bias, which needs to be monitored carefully to impede tumor angiogenesis and metastasis for ROS to serve as potential therapeutic targets exogenously/endogenously. Overall, additional research is required to comprehend the potential of ROS as an effective anti-tumor modality and therapeutic target for treating malignancies.

A global outlook to the interruption of education due to COVID-19 pandemic: Navigating in a time of uncertainty and crisis
Aras Bozkurt, Insung Jung, Junhong Xiao, Viviane Vladimirschi +4 more
2020· UniSA Research Outputs Repository (University of South Australia)879doi:10.5281/zenodo.3878572

Uncertain times require prompt reflexes to survive and this study is a collaborative reflex to better understand uncertainty and navigate through it. The Coronavirus (Covid-19) pandemic hit hard and interrupted many dimensions of our lives, particularly education. As a response to interruption of education due to the Covid-19 pandemic, this study is a collaborative reaction that narrates the overall view, reflections from the K12 and higher educational landscape, lessons learned and suggestions from a total of 31 countries across the world with a representation of 62.7% of the whole world population. In addition to the value of each case by country, the synthesis of this research suggests that the current practices can be defined as emergency remote education and this practice is different from planned practices such as distance education, online learning or other derivations. Above all, this study points out how social injustice, inequity and the digital divide have been exacerbated during the pandemic and need unique and targeted measures if they are to be addressed. While there are support communities and mechanisms, parents are overburdened between regular daily/professional duties and emerging educational roles, and all parties are experiencing trauma, psychological pressure and anxiety to various degrees, which necessitates a pedagogy of care, affection and empathy. In terms of educational processes, the interruption of education signifies the importance of openness in education and highlights issues that should be taken into consideration such as using alternative assessment and evaluation methods as well as concerns about surveillance, ethics, and data privacy resulting from nearly exclusive dependency on online solutions.

Algorithm for Automated Mapping of Land Surface Temperature Using LANDSAT 8 Satellite Data
Uğur Avdan, Gordana JOVANOVSKA
2016· Journal of Sensors765doi:10.1155/2016/1480307

Land surface temperature is an important factor in many areas, such as global climate change, hydrological, geo-/biophysical, and urban land use/land cover. As the latest launched satellite from the LANDSAT family, LANDSAT 8 has opened new possibilities for understanding the events on the Earth with remote sensing. This study presents an algorithm for the automatic mapping of land surface temperature from LANDSAT 8 data. The tool was developed using the LANDSAT 8 thermal infrared sensor Band 10 data. Different methods and formulas were used in the algorithm that successfully retrieves the land surface temperature to help us study the thermal environment of the ground surface. To verify the algorithm, the land surface temperature and the near-air temperature were compared. The results showed that, for the first case, the standard deviation was 2.4°C, and for the second case, it was 2.7°C. For future studies, the tool should be refined with in situ measurements of land surface temperature.

An empirical investigation of the Turkish consumers’ acceptance of Internet banking services
Vichuda Nui Polatoglu, Serap Ekin
2001· International Journal of Bank Marketing697doi:10.1108/02652320110392527

An exploratory study of consumer acceptance of Internet banking (IB) services is conducted in a Turkish bank. Examines both consumer‐related factors that may affect the adoption of an innovation or a product (such as complexity, perceived risk, and relative advantage) as well as organizational factors such as marketing effort. The results suggest that IB not only reduces operational cost to the bank, but also leads to higher levels of customer satisfaction and retention. Accordingly, it is argued that IB is strategically important to the banking sector in an emerging economy, such as in Turkey.

A global outlook to the interruption of education due to COVID-19 pandemic: Navigating in a time of uncertainty and crisis
Aras Bozkurt, Insung Jung, Junhong Xiao, Viviane Vladimirschi +4 more
2020· Acta Académica (Acta Académica)676doi:10.5281/zenodo.3878571

Uncertain times require prompt reflexes to survive and this study is a collaborative reflex to better understand uncertainty and navigate through it. The Coronavirus (Covid-19) pandemic hit hard and interrupted many dimensions of our lives, particularly education. As a response to interruption of education due to the Covid-19 pandemic, this study is a collaborative reaction that narrates the overall view, reflections from the K12 and higher educational landscape, lessons learned and suggestions from a total of 31 countries across the world with a representation of 62.7% of the whole world population. In addition to the value of each case by country, the synthesis of this research suggests that the current practices can be defined as emergency remote education and this practice is different from planned practices such as distance education, online learning or other derivations. Above all, this study points out how social injustice, inequity and the digital divide have been exacerbated during the pandemic and need unique and targeted measures if they are to be addressed. While there are support communities and mechanisms, parents are overburdened between regular daily/professional duties and emerging educational roles, and all parties are experiencing trauma, psychological pressure and anxiety to various degrees, which necessitates a pedagogy of care, affection and empathy. In terms of educational processes, the interruption of education signifies the importance of openness in education and highlights issues that should be taken into consideration such as using alternative assessment and evaluation methods as well as concerns about surveillance, ethics, and data privacy resulting from nearly exclusive dependency on online solutions.

Biological and Pharmacological Activities of Carvacrol and Carvacrol Bearing Essential Oils
K. Hüsnü Can Başer
2008· Current Pharmaceutical Design615doi:10.2174/138161208786404227

Oregano essential oils obtained from the genera Origanum, Thymus, Coridothymus, Thymbra, Satureja and Lippia are rich in carvacrol, a monoterpenic phenol isomeric with thymol. Turkey is the biggest exporter of oregano herb and oil to the world markets. Oregano is mainly used in food, spice and pharmaceutical industries. Carvacrol is responsible for the biological activities of oregano. Many diverse activities of carvacrol such as antimicrobial, antitumor, antimutagenic, antigenotoxic, analgesic, antispasmodic, antiinflammatory, angiogenic, antiparasitic, antiplatelet, AChe inhibitory, antielastase, insecticidal, antihepatotoxic and hepatoprotective activities and uses such as feed additive, in honeybee breeding and in gastrointestinal ailments have been shown. This paper highlights these activities and attempts to explain the possible in vivo mechanism of action of carvacrol.

MAPPING JOURNALISM CULTURES ACROSS NATIONS
Thomas Hanitzsch, Folker Hanusch, Claudia Mellado, Maria Anikina +4 more
2010· Journalism Studies605doi:10.1080/1461670x.2010.512502

Abstract This article reports key findings from a comparative survey of the role perceptions, epistemological orientations and ethical views of 1800 journalists from 18 countries. The results show that detachment, non-involvement, providing political information and monitoring the government are considered essential journalistic functions around the globe. Impartiality, the reliability and factualness of information, as well as adherence to universal ethical principles are also valued worldwide, though their perceived importance varies across countries. Various aspects of interventionism, objectivism and the importance of separating facts from opinion, on the other hand, seem to play out differently around the globe. Western journalists are generally less supportive of any active promotion of particular values, ideas and social change, and they adhere more to universal principles in their ethical decisions. Journalists from non-western contexts, on the other hand, tend to be more interventionist in their role perceptions and more flexible in their ethical views. Keywords: comparative researchepistemologiesethical ideologiesinstitutional rolesjournalism culturejournalistssurvey Notes 1. This study was funded by several institutions, including the German Research Foundation, Swiss National Science Foundation, Rothschild-Caesarea School of Communication at Tel Aviv University, and School of Journalism and Communication at the University of Queensland. 2. In every country, there exists a tacit consensus among journalists and media scholars regarding the media that shape the national political agenda. We selected those quality outlets which are commonly believed to have the greatest impact in this regard. For popular print media we selected the outlets with the highest circulation figures, while the selection of radio and TV stations was based on the ratings of their newscasts. 3. This was especially true for local media. Here, we sampled media outlets produced in various parts of the countries: in urban centers and rural areas or, as in the case of Switzerland and Indonesia, in the regions inhabited by the major cultural populations. 4. This was the case in Austria, Egypt and Uganda. Austria had no significant local TV station, so the number of national channels was increased. In the absence of local newspapers and private radio stations in Egypt, we decided to raise the number of national newspapers and state-owned radio channels, respectively. In Uganda, we increased the number of local radio stations to compensate for the lack of local TV stations; hence, the resulting sample also reflected the prominence of radio in the country. 5. Calculated by one-way independent ANOVA. 6. The program was developed by Adi Raveh and David Talby; it is freely available from http://www.cs.huji.ac.il/~davidt/vcoplot/index.html. 7. Spearman's rank order correlation coefficient Rho: Australia: 0.719***, Austria 0.641***, Brazil 0.385***, Bulgaria 0.523***, Chile 0.341***, China 0.478***, Egypt 0.181 (ns), Germany 0.589***, Indonesia 0.305**, Israel 0.377***, Mexico 0.671***, Romania 0.488***, Russia 0.423***, Spain 0.687***, Switzerland 0.589***, Turkey 0.214*, Uganda 0.271**, United States 0.617*** (*p<0.05, **p<0.01, ***p<0.001; ns, not significant). 8. See http://freedomhouse.org/template.cfm?page=16.

Antimicrobial Screening of <i>Mentha piperita</i> Essential Oils
Gökalp İşcan, N. Kırımer, Mine Kürkçüoğlu, Hüsnü Can Başer +1 more
2002· Journal of Agricultural and Food Chemistry583doi:10.1021/jf011476k

Essential oils of peppermint Mentha piperita L. (Lamiaceae), which are used in flavors, fragrances, and pharmaceuticals, were investigated for their antimicrobial properties against 21 human and plant pathogenic microorganisms. The bioactivity of the oils menthol and menthone was compared using the combination of in vitro techniques such as microdilution, agar diffusion, and bioautography. It was shown that all of the peppermint oils screened strongly inhibited plant pathogenic microorganisms, whereas human pathogens were only moderately inhibited. Chemical compositions of the oils were analyzed by GC and GC/MS. Using the bioautography assay, menthol was found to be responsible for the antimicrobial activity of these oils.

Is Metaverse in education a blessing or a curse: a combined content and bibliometric analysis
Ahmed Tlili, Ronghuai Huang, Boulus Shehata, Dejian Liu +4 more
2022· Smart Learning Environments580doi:10.1186/s40561-022-00205-x

Abstract The Metaverse has been the centre of attraction for educationists for quite some time. This field got renewed interest with the announcement of social media giant Facebook as it rebranding and positioning it as Meta. While several studies conducted literature reviews to summarize the findings related to the Metaverse in general, no study to the best of our knowledge focused on systematically summarizing the finding related to the Metaverse in education. To cover this gap, this study conducts a systematic literature review of the Metaverse in education. It then applies both content and bibliometric analysis to reveal the research trends, focus, and limitations of this research topic. The obtained findings reveal the research gap in lifelogging applications in educational Metaverse. The findings also show that the design of Metaverse in education has evolved over generations, where generation Z is more targeted with artificial intelligence technologies compared to generation X or Y. In terms of learning scenarios, there have been very few studies focusing on mobile learning, hybrid learning, and micro learning. Additionally, no study focused on using the Metaverse in education for students with disabilities. The findings of this study provide a roadmap of future research directions to be taken into consideration and investigated to enhance the adoption of the Metaverse in education worldwide, as well as to enhance the learning and teaching experiences in the Metaverse.

How to design bibliometric research: an overview and a framework proposal
Oğuzhan Öztürk, Rıdvan Kocaman, Dominik K. Kanbach
2024· Review of Managerial Science564doi:10.1007/s11846-024-00738-0

Abstract Bibliometric analysis has recently become a popular and rigorous technique used for exploring and analyzing the literature in business and management. Prior studies principally focused on ‘how to do bibliometric analysis’, presenting an overview of the bibliometric methodology along with various techniques and step-by-step guidelines that can be relied on to rigorously conduct bibliometric analysis. However, the current body of evidence is limited in its ability to provide practical knowledge that can enhance the design and performance of bibliometric research. This claim is supported even by the fact that relevant studies refer to their work as ‘bibliometric analysis’ rather than ‘bibliometric research’. Accordingly, we endeavor to offer a more functional framework for researchers who wish to design/conduct bibliometric research on any field of research, especially business and management. To do this, we followed a twofold way. We first outlined the main stages and steps of typical bibliometric research. Then, we proposed a comprehensive framework for specifying how to design/conduct the research and under what headings the relevant stages (step-by-step) will be used and/or presented. Thus, the current paper is expected to be a useful source to gain insights into the available techniques and guide researchers in designing/conducting bibliometric research.

Thermal conductivity of BN-C nanostructures
Alper Kınacı, Justin B. Haskins, Cem Sevik, Tahir Çağın
2012· Physical Review B558doi:10.1103/physrevb.86.115410

Chemical and structural diversity present in hexagonal boron nitride ($h$-BN) and graphene hybrid nanostructures provide avenues for tuning various properties for their technological applications. In this paper we investigate the variation of thermal conductivity ($\ensuremath{\kappa}$) of hybrid graphene/$h$-BN nanostructures: stripe superlattices and BN (graphene) dots embedded in graphene (BN) are investigated using equilibrium molecular dynamics. To simulate these systems, we have parametrized a Tersoff type interaction potential to reproduce the ab initio energetics of the B-C and N-C bonds for studying the various interfaces that emerge in these hybrid nanostructures. We demonstrate that both the details of the interface, including energetic stability and shape, as well as the spacing of the interfaces in the material, exert strong control on the thermal conductivity of these systems. For stripe superlattices, we find that zigzag configured interfaces produce a higher $\ensuremath{\kappa}$ in the direction parallel to the interface than the armchair configuration, while the perpendicular conductivity is less prone to the details of the interface and is limited by the $\ensuremath{\kappa}$ of $h$-BN. Additionally, the embedded dot structures, having mixed zigzag and armchair interfaces, affect the thermal transport properties more strongly than superlattices. The largest reduction in thermal conductivity is observed at 50$%$ dot concentration, but the dot radius appears to have little effect on the magnitude of reduction around this concentration.

Evidence-Based Practices for Children, Youth, and Young Adults with Autism: Third Generation Review
Kara Hume, Jessica R. Steinbrenner, Samuel L. Odom, Kristi L. Morin +4 more
2021· Journal of Autism and Developmental Disorders525doi:10.1007/s10803-020-04844-2

This systematic review describes a set of practices that have evidence of positive effects with autistic children and youth. This is the third iteration of a review of the intervention literature (Odom et al. in J Autism Dev Disorders 40(4):425-436, 2010a; Prevent School Fail 54(4):275-282, 2010b; Wong et al. in https://autismpdc.fpg.unc.edu/sites/autismpdc.fpg.unc.edu/files/imce/documents/2014-EBP-Report.pdf ; J Autism Dev Disorders 45(7):1951-1966, 2015), extending coverage to articles published between 1990 and 2017. A search initially yielded 31,779 articles, and the subsequent screening and evaluation process found 567 studies to include. Combined with the previous review, 972 articles were synthesized, from which the authors found 28 focused intervention practices that met the criteria for evidence-based practice (EBP). Former EBPs were recategorized and some manualized interventions were distinguished as meeting EBP criteria. The authors discuss implications for current practices and future research.

Augmented Reality in Education: Current Technologies and the Potential for Education
Mehmet Kesım, Yasin Özarslan
2012· Procedia - Social and Behavioral Sciences505doi:10.1016/j.sbspro.2012.06.654

Although the physical world is three-dimensional, mostly we prefer to use two-dimensional media in education. The combination of AR technology with the educational content creates new type of automated applications and acts to enhance the effectiveness and attractiveness of teaching and learning for students in real life scenarios. Augmented Reality is a new medium, combining aspects from ubiquitous computing, tangible computing, and social computing. This medium offers unique affordances, combining physical and virtual worlds, with continuous and implicit user control of the point of view and interactivity. This paper provides an introduction to the technology of augmented reality (AR) and its possibilities for education. Key technologies and methods are discussed within the context of education.

The antioxidants α‐lipoic acid and <i>N</i>‐acetylcysteine reverse memory impairment and brain oxidative stress in aged SAMP8 mice
Susan A. Farr, H. Fai Poon, Dilek Doğrukol‐Ak, Jeniffer Drake +4 more
2003· Journal of Neurochemistry461doi:10.1046/j.1471-4159.2003.01580.x

Oxidative stress may play a crucial role in age-related neurodegenerative disorders. Here, we examined the ability of two antioxidants, alpha-lipoic acid (LA) and N-acetylcysteine (NAC), to reverse the cognitive deficits found in the SAMP8 mouse. By 12 months of age, this strain develops elevated levels of Abeta and severe deficits in learning and memory. We found that 12-month-old SAMP8 mice, in comparison with 4-month-old mice, had increased levels of protein carbonyls (an index of protein oxidation), increased TBARS (an index of lipid peroxidation) and a decrease in the weakly immobilized/strongly immobilized (W/S) ratio of the protein-specific spin label MAL-6 (an index of oxidation-induced conformational changes in synaptosomal membrane proteins). Chronic administration of either LA or NAC improved cognition of 12-month-old SAMP8 mice in both the T-maze footshock avoidance paradigm and the lever press appetitive task without inducing non-specific effects on motor activity, motivation to avoid shock, or body weight. These effects probably occurred directly within the brain, as NAC crossed the blood-brain barrier and accumulated in the brain. Furthermore, treatment of 12-month-old SAMP8 mice with LA reversed all three indexes of oxidative stress. These results support the hypothesis that oxidative stress can lead to cognitive dysfunction and provide evidence for a therapeutic role for antioxidants.

Nanostructured Rutile TiO<sub>2</sub>for Selective Photocatalytic Oxidation of Aromatic Alcohols to Aldehydes in Water
Sedat Yurdakal, Giovanni Palmisano, Vittorio Loddo, Vincenzo Augugliaro +1 more
2008· Journal of the American Chemical Society459doi:10.1021/ja709989e

Selective photocatalytic oxidation of aromatic alcohols to aldehydes was performed in water in the presence of TiO2 rutile photocatalysts that exhibited a low degree of crystallinity. The nanostructured rutile samples, prepared ex TiCl4 at very low temperature, ensured a selectivity toward the aldehyde 3 to 4-fold higher than the commercial rutile tested (Sigma-Aldrich).

Electrochemical Treatment of the Antibiotic Sulfachloropyridazine: Kinetics, Reaction Pathways, and Toxicity Evolution
Ahmad Dirany, Ignasi Sirés, Nihal Oturan, Ali Özcan +1 more
2012· Environmental Science & Technology422doi:10.1021/es204621q

The electro-Fenton treatment of sulfachloropyridazine (SCP), a model for sulfonamide antibiotics that are widespread in waters, was performed using cells with a carbon-felt cathode and Pt or boron-doped diamond (BDD) anode, aiming to present an integral assessment of the kinetics, electrodegradation byproducts, and toxicity evolution. H(2)O(2) electrogeneration in the presence of Fe(2+) yielded (•)OH in the solution bulk, which acted concomitantly with (•)OH adsorbed at the anode (BDD((•)OH)) to promote the oxidative degradation of SCP (k(abs,SCP) = (1.58 ± 0.02) × 10(9) M(-1) s(-1)) and its byproducts. A detailed scheme for the complete mineralization was elucidated. On the basis of the action of (•)OH onto four different SCP sites, the pathways leading to total decontamination includes fifteen cyclic byproducts identified by HPLC and GC-MS, five aliphatic carboxylic acids, and a mixture of Cl(-), SO(4)(2-), NH(4)(+), and NO(3)(-) that accounted for 90-100% of initial Cl, S, and N. The time course of byproducts was satisfactorily correlated with the toxicity profiles determined from inhibition of Vibrio fischeri luminescence. 3-Amino-6-chloropyridazine and p-benzoquinone were responsible for the increased toxicity during the first stages. Independent electrolyses revealed that their toxicity trends were close to those of SCP. The formation of the carboxylic acids involved a sharp toxicity decrease, thus ensuring overall detoxification.

Intellectual capital and financial performance: A study of the Turkish Banking Sector
Nasıf ÖZKAN, Sinan Çakan, Murad Kayacan
2016· Borsa Istanbul Review411doi:10.1016/j.bir.2016.03.001

The purpose of this study is to analyze the relationship between the intellectual capital performance and financial performance of 44 banks operating in Turkey between 2005 and 2014. The intellectual capital performance of banks is measured through the value added intellectual coefficient (VAIC) methodology. The intellectual capital performance of the Turkish banking sector is generally affected by human capital efficiency (HCE). In terms of bank types, development and investment banks have the highest average VAIC. When VAIC is divided into its components, it can be observed that capital employed efficiency (CEE) and human capital efficiency (HCE) positively affect the financial performance of banks. However, CEE has more influence on the financial performance of banks compared to HCE. Therefore, banks operating in the Turkish banking sector should use their financial and physical capitals if they wish to reach a higher profitability level.