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Now showing 1 - 10 of 189
  • Review
    Citation - Scopus: 7
    Ion Exchange Membranes for Reverse Electrodialysis (red) Applications - Recent Developments
    (Amirkabir University of Technology - Membrane Processes Research Laboratory, 2021) Eti,M.; Othman,N.H.; Guler,E.; Kabay,N.
    The innovative membrane-based technology called reverse electrodialysis (RED) is capable of producing electrical power from the controlled mixing of two aqueous streams of different salinity. There has been tremendous progress so far in the development of RED process in terms of system development, spacer design, membranes properties and operational conditions optimization. Among those, characteristics of the ion exchange membranes are found to be the critical element affecting the performances of RED process. In this respect, a brief overview of the latest developments in ion exchange membranes were presented in this review, focussing on their properties and performances in RED applications. The recent developments of nanocomposite and ion selective membranes, particularly pore filling ion exchange membranes due to their high performances and inexpensive fabrication cost were also summarized. Shortly, fouling problem for the ion exchange membranes employed in the RED system was mentioned. © 2021 Amirkabir University of Technology - Membrane Processes Research Laboratory. All rights reserved.
  • Review
    ÖRGÜTSEL YAŞAM EVRELERİ İNSANLARIN YAŞAM EVRELERİNE BENZERLİK GÖSTERİR Mİ?
    (2023) Kemikkıran, Nurcan; Çınar, Esra
    Bu çalışmanı amacı, insanların yaşam evreleri ve yaşamlarındaki önemli olayların örgütlere benzetilerek, örgütlerin yaşam evrelerini ve yaşamlarını etkileyen önemli süreçlerin farklı örgüt kuramları çerçevesinde kuramsal olarak tartışılmasıdır. Çalışma kapsamında, örgütlerin yaşam evreleri nasıl değişir sorusuna yanıt aranmıştır. Bu kapsamda; doğum, büyüme, hayatta kalma, bağımlılık ilişkileri, evlilik, ev alma, araba alma, mülk edinme, sosyal ilişkiler ve ölüm gibi bireylerin yaşamları boyunca deneyimlediği süreçler ile örgütsel evreler arasındaki benzerlik işlem maliyeti kuramı, koşul bağımlılık kuramı, kaynak bağımlılığı kuramı, kurumsal kuram, örgütsel ekoloji kuramı, sosyal ağ kuramı ve sosyal sermaye kuramı ile ilişkilendirilerek açıklanmıştır. İnsanların yaşam döngüsü doğum ile başlar ve ölüm ile sonra erer ve örgütler de aynı döngü içerisinde varlıklarını devam ettirmektedir. Bu döngü içerisinde insanlar bazı hayati faaliyetleri yerine getirmekte ve bazı süreçleri de deneyimlemektedir. Benzer şekilde örgütler de bu döngü içerisinde faaliyetlerini gerçekleştirmektedir. Bu döngünün anlaşılmasında farklı örgütsel kuramlar değişik bakış açıları sunarak bu döngünün birçok yönüyle anlaşılmasını sağlamaktadır.
  • Review
    Citation - WoS: 41
    Citation - Scopus: 57
    Drawing the Big Picture of Games in Education: a Topic Modeling-Based Review of Past 55 Years
    (Pergamon-elsevier Science Ltd, 2023) Ekin, Cansu C.; Polat, Elif; Hopcan, Sinan
    The literature of games in education has a rich and multidisciplinary content. Due to the large number of studies in the field, it is not easy to analyze all relevant studies. There are few studies exploring the big picture of research trends in the field. For this reason, the purpose of this study is to examine longitudinal trends of game-based research in education using text mining tech-niques. 4980 publications were retrieved as an experimental dataset indexed by the SCOPUS database in the period 1968 to mid-2021. The results include descriptive statistics of game-based research, trends of the research topics, and trends in the frequency of each topic over time. They show that the number of studies focusing on the use of games in education has increased, particularly since the 2000s when Internet use accelerated and became widespread. Approxi-mately 70% of all the studies were conducted in the last 10 years. One third of the studies is related to the main topic of game-based learning. It is significant that in the last three decades the topic of serious games has been among the top three trends. Considering usage acceleration of the topics, the highest values belong to game-based learning, serious games and student science games, in that order. The findings of this study are expected to guide the field by providing a better understanding of the trends of games in education and offer a direction for future research.
  • Review
    Citation - WoS: 91
    Citation - Scopus: 105
    Recommendations for Head and Neck Surgical Oncology Practice in a Setting of Acute Severe Resource Constraint During the Covid-19 Pandemic: an International Consensus
    (Elsevier Science inc, 2020) Mehanna, Hisham; Hardman, John C.; Shenson, Jared A.; Abou-Foul, Ahmad K.; Topf, Michael C.; AlFalasi, Mohammad; Holsinger, F. Christopher
    The speed and scale of the global COVID-19 pandemic has resulted in unprecedented pressures on health services worldwide, requiring new methods of service delivery during the health crisis. In the setting of severe resource constraint and high risk of infection to patients and clinicians, there is an urgent need to identify consensus statements on head and neck surgical oncology practice. We completed a modified Delphi consensus process of three rounds with 40 international experts in head and neck cancer surgical, radiation, and medical oncology, representing 35 international professional societies and national clinical trial groups. Endorsed by 39 societies and professional bodies, these consensus practice recommendations aim to decrease inconsistency of practice, reduce uncertainty in care, and provide reassurance for clinicians worldwide for head and neck surgical oncology in the context of the COVID-19 pandemic and in the setting of acute severe resource constraint and high risk of infection to patients and staff.
  • Review
    Citation - Scopus: 3
    Reconsidering Development Aid: a Systemic Analysis
    (Pluto Journals, 2020) Gülseven,Y.
    In the political and academic debates on development aid in the post-Cold War years, there is often reference to a “new aid architecture.” This study explores what is new about this “new architecture of aid” and traces change and continuity by comparing the form and essence of aid architecture in the Cold War and the post-Cold War years. It discusses to what extent development aid can be interrogated within the inter-systemic competition during the Cold War period. After having located aid into a systemic framework, it seeks to understand the emergence of the “new aid architecture” in the post-Cold War years. To this end, it first analyses the relevance of aid to the hegemonic project that pursues the proletarianization of the world’s poor. It then focuses on aid’s role in transforming social and industrial relations to promote capitalist competitiveness at the global level. In this respect, it pays particular attention to “global value chains.” This study argues that “new aid architecture” is nothing more than an attempt to set a new framework for the role and contribution of aid in expanding and deepening the hegemony of capital over labor on a global scale in the absence of the Soviet factor. © 2020 Pluto Journals. All rights reserved.
  • Review
    Information System Process Improvement: a Managerial Perspective
    (2003) Mishra,A.
    System process improvement is a continuous strategy in organizations for reducing overall cost, shortening cycle times, and improve quality and user satisfaction. For software organizations to remain competitive and survive in the global market place, it is now inevitable. All organizations are trying to achieve more value from their technology investments. There are various models like Capability Maturity Model (CMM), ISO, etc., available to measure it. However management role is vital for effective process improvement implementation strategy. This paper briefly presents an assessment of all the factors which if taken care by the management effectively can ensure success in information system process improvement.
  • Review
    Citation - WoS: 25
    Citation - Scopus: 23
    Real-Time Biosensing Bacteria and Virus With Quartz Crystal Microbalance: Recent Advances, Opportunities, and Challenges
    (Taylor & Francis inc, 2023) Bonyadi, Farzaneh; Kavruk, Murat; Ucak, Samet; Cetin, Barbaros; Bayramoglu, Gulay; Dursun, Ali D. D.; Ozalp, Veli C. C.
    Continuous monitoring of pathogens finds applications in environmental, medical, and food industry settings. Quartz crystal microbalance (QCM) is one of the promising methods for real-time detection of bacteria and viruses. QCM is a technology that utilizes piezoelectric principles to measure mass and is commonly used in detecting the mass of chemicals adhering to a surface. Due to its high sensitivity and rapid detection times, QCM biosensors have attracted considerable attention as a potential method for detecting infections early and tracking the course of diseases, making it a promising tool for global public health professionals in the fight against infectious diseases. This review first provides an overview of the QCM biosensing method, including its principle of operation, various recognition elements used in biosensor creation, and its limitations and then summarizes notable examples of QCM biosensors for pathogens, focusing on microfluidic magnetic separation techniques as a promising tool in the pretreatment of samples. The review explores the use of QCM sensors in detecting pathogens in various samples, such as food, wastewater, and biological samples. The review also discusses the use of magnetic nanoparticles for sample preparation in QCM biosensors and their integration into microfluidic devices for automated detection of pathogens and highlights the importance of accurate and sensitive detection methods for early diagnosis of infections and the need for point-of-care approaches to simplify and reduce the cost of operation.
  • Review
    The Power of Market Fundamentalism: Karl Polanyi's Critique
    (inst Economics Research Sas & inst Forecasting Csps Sas, 2014) Temel, Bulent
    [No Abstract Available]
  • Review
    Citation - WoS: 4
    Citation - Scopus: 4
    Smart Hydrogels in Lab-On (loc) Applications
    (Elsevier, 2024) Tevlek, Atakan; Cretin, Esin Akbay
    Laboratory on-chip (LOC) technology facilitates numerous developments across diverse disciplines, such as medicine, tissue engineering, materials science, biomedical engineering, and biotechnology. Moreover, the potential applications appear boundless when LOC is integrated with intelligent hydrogels. In the literature, however, there are few accounts of the vast array of developments and applications that this combination has spawned. These new systems, which integrate smart hydrogels and LOC and thus significantly advance cuttingedge technology, have been thoroughly examined in this review. The functions of smart hydrogels in LOC applications were described and subsequently the developed intelligent hydrogels were classified as multiresponsive, thermo-responsive, pH-responsive, and stimuli-responsive (light, magnetic, and electric). Following this, details regarding tunable properties for LOC functions were provided, followed by a discussion of the fabrication processes and integration of these intelligent hydrogels into LOC systems, including their benefits and drawbacks. Following that, current literature examples of LOC systems utilizing these intelligent hydrogels for biosensing, 3D culture, tissue engineering, controlled release, personalized medicine, drug delivery, analyte enrichment, and organ-on-a-chip applications were presented. Following the presentation of state-of-the-art information regarding smart hydrogel characterization techniques, present challenges and prospective prospects were discussed.
  • Review
    Citation - WoS: 39
    Citation - Scopus: 42
    Hydropower in Turkey: Analysis in the View of Vision 2023
    (Pergamon-elsevier Science Ltd, 2013) Melikoglu, Mehmet
    Turkey is a recently developed country, a regional power in the Middle East and an economic powerhouse of the region. Turkey's electricity demand is continuously increasing due to fast economic growth coupled with the country's vibrant young population. It is envisaged that this demand would keep on increasing almost exponentially in the next decade according to the recently avowed Vision 2023 agenda. According to which, the Turkish government ambitiously wants to provide 30.0% of the country's electricity demand from renewable energy sources by 2023. Turkey has vast renewable energy potential including hydro, geothermal, solar and wind. However, historically there is only one playmaker that is hydropower. Thus a detailed review of the current status and future prospects of Turkish hydropower market is urgently needed to generate a roadmap for the Vision 2023 agenda. This paper was intended to provide that vital information. Currently, more than 25.0% or 57.5 TWh of the country's electricity demand is supplied from hydropower. According to official projections this would increase to approximately 116.0 TWh in 2023. In this study, hydropower's supply rate of Turkey's annual electricity demand was assessed based on the official projections and a forecast was generated. Results showed that between 22.0% and 27.0% of Turkey's annual electricity demand should be supplied from hydropower in 2023. Therefore, between 22.5 TWh and 45.0 TWh of electricity should be generated from renewable energy sources other than hydropower to provide a total of 30.0% renewable energy based electricity generation in 2023. (C) 2013 Elsevier Ltd. All rights reserved.