İstanbul Bilgi Üniversitesi Kurumsal Akademik Arşivi
Güncel Gönderiler
Kurumsal akademik arşivlerde üst veri kalitesi üzerine değerlendirme
(İdeal Kültür Akademi, 2024) Çuhadar, Sami; Çelik, Sönmez
Veri, ölçülebilir veya gözlemlenebilir gerçekleri temsil eder. Veri, olayları, nesneleri, ürünleri veya onların özelliklerini tanımlamak için kullanılır. Üst veri ise, bir çalışmayla ilgili olarak; çalışmanın başlığı, özeti, anahtar kelimeleri, yazar bilgileri, atıfları gibi verileri ifade eder. Ayrıca, bir bilgi kaynağının türü, dili, kullanım hakkı, konu başlıkları, kalıcı linkleri, otorite dizini gibi kaynağı kullanmayı ve yönetmeyi kolaylaştıran bilgiler de içerir. Üst veriler, çalışmanın doğru şekilde tanıtılması, keşfedilmesi ve erişilebilir hale getirilmesi için kritik öneme sahiptir. Bir akademik kurumda üretilen yayınlara ve bunlarla ilgili kaynaklara ilişkin üst veriler, araştırmalara kolay erişim, veri bütünlüğü, verilerin analizi, keşfi, yapılan bir araştırmanın sonraki araştırmalara temel oluşturması, atıf alma, kurumsal itibar, görünürlük, verilerin korunması ile uzun süreli saklanması gibi sayısız fayda sağlar.
Sustainable human resource management and job satisfaction-Unlocking the power of organizational identification: A cross-cultural perspective from 54 countries
(Wiley, 2024) Wojtczuk-Turek, Agnieszka; Turek, Dariusz; Edgar, Fiona; Klein, Howard J.; Bosak, Janine; Okay-Somerville, Belgin; Karamustafa-Kose, Gueldem; Karabatı, Serdar
Sustainable human resource management is gaining importance in organizations due to its role in developing a sustainable work environment and well-being. This paper discusses the relationship between employee perceptions of sustainable human resource management and job satisfaction in 54 countries. We propose that sustainable HRM is positively associated with job satisfaction but that this relationship is moderated by employees' identification with the organization and country-level individualism–collectivism. Thus, we suggest national culture functions as a second-level moderator of the relationship of sustainable HRM with organizational identification on job satisfaction. Findings from the multi-level analyses using data from 14,502 employees nested within 54 countries provided support for our hypotheses, namely that employee perceptions of sustainable HRM were positively associated with job satisfaction and that this relationship was more pronounced for employees with lower levels compared to higher levels of organizational identification in individualistic rather than collectivistic countries. These findings bear important implications for both theory and practice.
Hyper-stable collective rankings
(Elsevier Science Bv, 2015) Laine, Jean
We introduce a new consistency property for social welfare functions (SWF), called hyper-stability. An SWF is hyper-stable if at any profile over finitely many alternatives where a weak order R is chosen, there exists a profile of linear orders over linear orders, called hyper-profile, at which only linearizations of R are ranked first by the SWF. Profiles induce hyper-profiles according to some minimal compatibility conditions. We provide sufficient conditions for hyper-stability, and we investigate hyper-stability for several Condorcet SWFs. An important conclusion is that there are non-dictatorial hyper-stable SWFs. (C) 2015 Elsevier B.V. All rights reserved.
Fresh state properties and compressive strength development of reactive MgO-based systems
(Elsevier, 2022) Taj, Khalilullah; Aktürk, Büşra; Ulukaya, Serhan
In this study, flowability, setting time, and strength gain of mortars containing reactive magnesium oxide cement (RMC) and a combination of micro-silica (MS), nano-silica (NS), slag, and fly ash (FA) as precur-sors without employing accelerated carbonation have been investigated. To increase the flowability and hydration degree, sodium hexametaphosphate (SHMP) was incorporated. The series containing RMC and MS simultaneously, had the greatest 3-day compressive strength value of about 25 MPa, whereas further strength gains in all the mixtures until the 7th day was minimal, which establishes that strength gains were due to hydration degree, not carbonation. RMC and MS simultaneously in a series, a combination of extremely high fineness materials dropped the flowability; the presence of slag and FA, on the other hand, enhanced it. The inclusion of NS in the mix didn't demonstrate a perceptible change in any of the properties measured in this study; its inertness could be attributed to the unsuitable dispersion method. Setting time of reference mix was the shortest, which was in conformity with its fast initial strength gain. Replacement of RMC with any other binder extended both the initial and final setting time. It was hypothesized that a major difference in this study is the use of SHMP as a dispersant and hydration agent. The outcomes of this study confirm that RMC can be a potential binder material to be used in mor-tar productions.Copyright (c) 2022 Elsevier Ltd. All rights reserved.Selection and peer-review under responsibility of the scientific committee of the International Confer-ence on Advances in Construction Materials and Structures.
Effect of intrinsic polymer properties on the photo sensitive organic field-effect transistors (Photo-OFETs)
(Elsevier, 2016) Kosemen, Zuhal Alpaslan; Kosemen, Arif; Ozturk, Sadullah; Canimkurbey, Betul; San, Sait Eren; Yerli, Yusuf; Tunc, Ali Veysel
In this work, we have demonstrated how the intrinsic properties of a conjugated polymer can influence the electro-optical characteristics of photo sensitive organic field - effect transistors (Photo-OFETs). Photo-OFETs fabricated with three batches of poly[2-methoxy,5-(3',7'-dimethyl-octyloxy)]-p-phenylene vinylene (MDMO-PPV) were investigated in the scope of our work. Photo-OFETs were fabricated with the polymers, than electrically and electro-optically characterized. It was observed that the channel current and the field-effect mobility increase with increasing polymer molecular weight. Interestingly, the electro-optical characteristics and photo switching properties of the transistors were found to depend on the polydispersity (PDI) of the polymer as well. These results are explained in terms of influences of chain packing, ordering and trap density on the FET switching properties and transistor parameters. (C) 2016 Elsevier B.V. All tights reserved.
