1,720,957 research outputs found
Effect of supramolecular complexation of alkali hydrogenselenates with crown ethers and solid-solutions with their hydrogensulfate counterparts on the solid-to-solid phase transition behaviors
Full text linkThis study investigates the structural and phase transition characteristics of supramolecular complexes composed of 18-crown-6 ether and hydrogen selenate (HSeO4−) anions with various cations (K+, Rb+, Cs+). Single crystals of [18-crown-6·K]HSeO4·2H2O, [18-crown-6·Rb]HSeO4·H2O, [18-crown-6·Cs]HSeO4·H2O, [18-crown-6·K]HSeO4, and [18-crown-6·K](HSeO4)0.5(HSO4)0.5 were grown and their structures determined via single-crystal X-ray diffraction. Differential scanning calorimetry and variable-temperature powder X-ray diffraction were employed to analyse dehydration and phase transition behaviors. The inclusion of 18-crown-6 ether significantly lowered the superprotonic phase transition temperatures by approximately 40 °C compared to pure solid acids. Additionally, substituting HSO4− with HSeO4− decreased phase transition temperatures for K and Cs-complexes and modified the phase transition behavior of the Rb-complex from two-step to single-step isostructural phase transition. Attempts to form solid solutions between the HSeO4− and HSO4− complexes yielded mixed results, with notable success in modulating phase transition temperatures in K-complexes
Enabling Superprotonic Phase Transitions in Solid Acids via Supramolecular Complex Formation: The Case of Crown Ethers and Alkali Hydrogen Sulfates
Full text linkThis investigation, combining both structural and spectroscopic analyses, sheds light on the intricate relationship between conduction properties and the initiation of dynamic motions within the anhydrous crystalline materials of 18-crown-6·KHSO4 (1) and 18-crown-6·RbHSO4 (2) and proves how the formation of supramolecular complexes is pivotal for inducing solid–solid transitions, leading to superprotonic phases, i.e., crystalline solids exhibiting an enhanced ability to conduct protons, as elucidated through impedance spectroscopic measurements. This multifaceted approach deepens our understanding of the phenomenon and sets the stage for further exploration and application in solid-state protonic conductors
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Okulların holakrasi özelliklerinin örgütsel adalet ve örgütsel sinerji ile ilişkisi
No full textHolakrasi, geleneksel hiyerarşik yapıların yerine, kendi kendini organize eden ekiplerin yetkili ve sorumlu olduğu merkezi olmayan bir yönetim yapısıdır. Holakrasi, örgütsel yolsuzluk, baskı, katılık ve hantallık gibi sorunları ortadan kaldırarak şeffaflığı, verimliliği ve yenilikçiliği hedeflemektedir. Bu çalışmada, holakrasinin öğretmenlerin karşılaştığı problemleri çözmede potansiyel faydaları ve etkileri araştırılmaktadır. Bu çalışma, öğretmenlerin holakrasi algılarıyla örgütsel adalet ve örgütsel sinerji kavramları arasındaki ilişkiyi analiz etmeyi ve bulguları ortaya koymayı amaçlamaktadır. Araştırmanın çalışma grubunu İstanbul ili Avcılar, Bağcılar, Eyüpsultan, Fatih, Kadıköy, Kartal ilçesinde bulunan ilk ve ortaokullarda görev yapan 778 görev yapan öğretmen oluşturmuştur. Araştırmada Okulların Holakrasi Özellikleri Ölçeği, Örgütsel Sinerji Ölçeği ve Örgütsel Adalet Ölçeği kullanılmıştır. Elde edilen veriler analiz edilerek yazılı metin haline getirilmiş olup, parametrik istatistiksel analizler kullanılmıştır. Elde edilen bulgulara göre; geliştirilen okulların holakrasi özelliklerinin öğretmenlerin içinde bulundukları eğitim kurumunda algıladıkları örgütsel adalet ve örgütsel sinerji düzeyini ortaya koymak için kullanılabilecek, güvenirliği ve geçerliği olan bir ölçme aracı olduğu söylenebilir. Ayrıca okulların holakrasi özellikleri ile örgütsel sinerji ve örgütsel adalet arasında pozitif yönde alamlı farklar olduğu tespit edilmiştir. Öğretmenler ve diğer paydaşlar arasındaki katılımı teşvik etmek, sorumluluk ve yetkiyi dağıtmak, inovasyonu teşvik etmek ve esneklik sağlamak, bu çalışmanın amacını oluşturmaktadır. Holakrasi, öğretmenlerin karar alma süreçlerine aktif olarak katılmasını ve söz sahibi olmasını sağlar. Bu da öğretmenlerin okul politikalarını, çalışma koşullarını ve öğrenci değerlendirmesini etkileme imkanına sahip olmalarını sağlar. Bu şekilde öğretmenler, yönetim süreçlerine duygusal olarak bağlanır, daha motive olur ve işlerine daha fazla tutkuyla bağlanır. Holokrasi araştırması, eğitim ve öğretmenler açısından birçok önemli noktada değer taşımaktadır. Öğretmenlerin özerkliği, paydaş katılımı ve iletişimi teşvik etme, esneklik ve adaptasyon, inovasyon ve yaratıcılığı teşvik etme, işbirliği ve paylaşım kültürü oluşturma, öğrenci odaklılık, adaptasyon ve değişim yönetimi gibi konularda holakrasinin potansiyel etkileri büyük bir öneme sahiptir. Bu çalışmanın bazı sınırlılıkları bulunmaktadır. Araştırma, katılımcıların görüşlerine ve yanıtlarına dayandığından, sosyal bilimler alanındaki sınırlılıklar nedeniyle tam olarak deneysel bir çalışma yapılamamıştır. Bunun yanı sıra, örneklem seçimi ve etki değerlendirmesi gibi konularda da sınırlılıklar mevcuttur. Özetle, bu tez öğretmenlerin holakrasi algılarıyla örgütsel adalet ve örgütsel sinerji kavramları arasındaki ilişkiyi analiz etmeyi hedeflemektedir. Araştırmanın önemi, eğitim sisteminin kalkınmada önemli bir faktör olması ve öğretmenlerin bu sistemin düzgün ve verimli işleyişi için önemli bir role sahip olmalarıdır. Holakrasinin öğretmenler üzerindeki etkileri ve potansiyel faydalarının incelenmesi, eğitim kalitesinin artırılmasına ve öğretmenlerin motivasyonunun yükseltilmesine katkı sağlayabilir.Holacracy is a decentralised management structure in which self-organised teams are in charge and responsible, replacing traditional hierarchical structures. Holacracy aims at transparency, efficiency and innovation by eliminating problems such as organisational corruption, oppression, rigidity and cumbersomeness. This study investigates the potential benefits and effects of holacracy in solving the problems faced by teachers. This study aims to analyse the relationship between teachers' perceptions of holacracy and the concepts of organisational justice and organisational synergy and to reveal the findings. The study group of the research consisted of 778 teachers working in primary and secondary schools in Avcılar, Bağcılar, Eyüpsultan, Fatih, Kadıköy and Kartal districts of Istanbul. Holacracy Characteristics of Schools Scale, Organisational Synergy Scale and Organisational Justice Scale were used in the study. The data obtained were analysed and turned into written text and parametric statistical analyses were used. The importance of this work is to promote participation among teachers and other stakeholders, distribute responsibility and authority, encourage innovation and provide flexibility. Holacracy enables teachers to actively participate and have a voice in decision-making processes. This enables teachers to have the opportunity to influence school policies, working conditions and student assessment. In this way, teachers become emotionally connected to the management processes, more motivated and more passionate about their work. Holocracy research has value for education and teachers in many important aspects. The potential effects of holacracy on teacher autonomy, encouraging stakeholder engagement and communication, flexibility and adaptability, fostering innovation and creativity, creating a culture of collaboration and sharing, student orientation, adaptability and change management are of great importance. However, this study also has limitations. The research is based on the views and responses of the participants and a fully experimental study could not be conducted due to limitations in the field of social sciences. In addition, there are limitations in terms of sample selection and impact assessment. As a result, this thesis aims to analyse the relationship between teachers' perceptions of holacracy and the concepts of organisational justice and organisational synergy. The importance of the research is that the education system is an important factor in development and teachers have an important role in the proper and efficient functioning of this system. Analysing the effects and potential benefits of holacracy on teachers can contribute to enhancing the quality of education and increasing the motivation of teachers
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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