25 research outputs found
Impact of management polyphony in family business: A review
No full textThe link between family and family-owned enterprise has persisted for generations within the framework of family, ownership, management, and business. Family-owned companies are created in order to generate revenue and preserve the family\u27s tradition. With the proper management strategy, family businesses can survive and be passed down to future generations. In family businesses, the founders and family member managers are the only ones who carry out main management tasks including planning, organizing, coordinating, leading, supervising, and controlling. Management polyphony can happen in a family-owned firm when more than one family member is designated as the manager. Although managerial polyphony may be viewed as a source of organizational transformation in well-managed circumstances, it may also be one of the primary causes of conflict in a family-owned business. This paper discussed theoretically the concept of management polyphony in family-owned firms
Electrospinning of milk proteins with pullulan
No full textElectrospinning has been used to produce nonwoven mats from the nano- and microscale fibers by applying an electric field to a viscous polymer solution. Milk-based proteins (nonfat dry milk and caseinates) cannot be electrospun, they must incorporate with an electrospinnable, food- grade carrier polymer to produce edible fibers. To obtain the fibers, polymer solutions must meet some criteria specifically viscosity and molecular chain entanglement, which is a necessity for a successful electrospinning process. However, many proteins, which can self-assemble in 3-D structure by intermolecular interactions including hydrogen bonds, hydrophobic, and electrostatic interactions, have lack of chain entanglements that can be improved by their dissolution in organic polar solvents which is not for food use.
This study demonstrates the electrospinning of nonfat dry milk (NFDM) and caseinate proteins (CAS) blended with an electrospinnable polysaccharide, pullulan (PUL) to produce food-grade ultrafine fibers and fibrous mats. It also evaluates the theoretical mechanism behind the inability to electrospin these milk-based proteins by investigating the relationship between solution rheology and fiber formation and morphology. First, neat NFDM, CAS, and PUL have to fully dissolve in aqueous solutions and governing parameters need to be optimized. Based on these optimized conditions, NFDM and CAS can be electrospun into the ultrafine fibers and fibrous mats as they blended with PUL.
The chemical and physical properties of NFDM and CAS blended with PUL fibers were examined using SEM micrograph, FTIR-ATR spectra, and the mechanical properties of their fibrous mats. Furthermore, bioactive living cell, Lactobacillus Rhamnosus GG, was chosen as a model application to encapsulate within the electrospun CAS: PUL blend fibrous mats to evaluate its recovery.
This study establishes the fundamental principles for the NFDM- and CAS-based nanofibers and nanofibrous mats for future studies. The nanofibrous mats possess smaller diameter fibers increasing the surface area-to-volume ratio and the porosity between the fibers. Therefore, the motivation of this study is to use these food-grade fibrous mats in many food applications including controlled nutrient delivery or flavor enhancement, sensitive bioactives encapsulation, texture improvement, functional foods, and beverages contribute to health-promoting foods.Ph.D.Includes bibliographical referencesby Serife Akkur
Edible films and coatings from calcium caseinate and their applications
No full textCalcium caseinate (CaCas), isolated from nonfat dry milk (NFDM), is a milk ingredient for the production of protein-based edible films and coatings. When the supply of NFDM exceeds the demand, the conversion of CaCas to alternative value-added products through processes such as coating may help utilize and prevent future surpluses of NFDM. This project involves two studies: the first is to produce edible CaCas films by incorporating high methoxyl pectin to improve their mechanical strength, and the second is to apply edible CaCas coating on ready-to-eat (RTE) breakfast cereals to enhance their textural and nutritional properties. The motivation of the first study is to improve the mechanical properties of calcium caseinate-based films. Glycerol (Gly), a plasticizer, is currently used in film solutions to overcome the brittleness of CaCas films. However, Gly reduces the mechanical strength of the films (Tomasula et al. 1998). The addition of hydrophobic compounds or modifications of polymer network is a common approach to improve the mechanical properties of CaCas/Gly films through crosslinks. Pectin can be an additive to provide the crosslinks in the film molecular structure (Rees et al., 1975; Morris et al., 1982; Flutti, 2003) because pectin molecules have both carboxyl and methoxyl functional groups which crosslink with amino acids of CaCas (Chambi and Grosso 2006). In this study, high methoxyl pectin (CP) was used in CaCas/Gly film solutions to make the edible films, and its effect on elastic modulus (E), elongation at break (EAB), and tensile strength (TS) of the films were evaluated. CaCas/Gly without (Control A and F films) and with CP (A, B, E, F, G, H, and K films) film solutions were prepared based on formulations which were produced by changing the mixing sequences of compounds at the constant 15% total solid concentration. The E, EAB, and TS values of these nine different films were tested as a function of film thickness, humidity, and CP content. The magnitude of the tensile properties showed that edible CaCas/Gly films was affected by film thickness, relative humidity (RH), and CP content (Bonnaillie et al. 2014). The motivation of the second study is to improve the nutrient profiles, extend the bowl-life, and enhance the textures of RTE breakfast cereals by using CaCas-based coating materials. RTE breakfast cereals are produced based on several steps including preprocessing, formulation, cooking, and lump breaking, coating, drying, cooling, and flaking. In the coating process, high sugar concentrates or slurries such as syrup are used to provide moisture barrier properties, preserve texture, and extend bowl-life of the cereals. Therefore, most RTE breakfast cereals contain high sugar with a range of 1-56% concentration (Albertson et al. 2013). However, this leads to health concerns such as childhood obesity and dental problems. Current research and some companies focus on the reduction of sugar coating and the enhancement of nutrient quality of RTE flakes by investigating alternative coating materials. In this study, glucose, NFDM, CaCas, and CaCas in blends with Gly, CP, and NFDM at constant 15% total protein concentration in coating solutions were applied on Wheaties® breakfast cereals by spraying the solutions on the surface of flakes with a drying process. The coatings provided an increased protein source, longer bowl life in milk, and crunchier and crispier texture by forming a uniform, sheen, and protective coating layer on the surface of the flakes.M.S.Includes bibliographical referencesby Serife Akkur
Treatment in Psychiatry: Patient Inclusion and Epistemic Justice
No full textThe author has granted permission for their work to be available to the general public.The concept of 'treatment' has been underexamined in psychiatry and philosophy of psychiatry. Psychiatrists, philosophers of psychiatry and patients all have different and at times, conflicting, understandings and expectations of what counts as 'psychiatric treatment'. To the extent that there are models of treatments in psychiatry and philosophy of psychiatry, they sidestep the patient's conceptualization of what constitutes their treatment. This thesis draws attention to the epistemic and ethical implications of patient minimization, through which patient perspectives are epistemically excluded both in the treatment room and the process of making psychiatric treatment decisions. Patient minimization also has ethical implications, some of which may extend to dehumanizing practices in clinical contexts. The thesis addresses these problems by developing a conceptual framework for understanding treatment in psychiatry. In conversation with feminist work in the continental tradition, social and standpoint epistemology, and recent developments in the medical humanities and philosophy of psychiatry, I argue for a framework that makes central patient inclusion in conceptualizing treatment. This means that both patient and psychiatrist offer situated expert testimony, which, if taken in conjunction with each other, would maximize objectivity, rigor, and patient-psychiatrist trust. In practice, patient negotiation must be clinically required in the psychiatric treatment decision-making process on epistemic grounds. Once patient-situated testimonies are included in decisions about treatment, the mental healthcare provider is able to promote the four principles of medical ethics: autonomy, nonmaleficence, beneficence and justice.Philosoph
The Organizational Citizenship Behaviour of Academic Staff in North Cyprus
No full textAbstractDue to its contribution to the effective functioning of organizations the topic of Organizational Citizenship Behaviour (OCB) has gained much attention over the past years and has been studied in a diversity of settings. The purpose of this study was to examine OCB in the higher education sector. More specifically, the study investigated the degree of OCB that exists amongst the academic staff at a private university in North Cyprus. The study instrument utilized was the “Organizational Citizenship Behaviour Scale” developed by Podsakoff et al. (1990) which is the most widely used OCB study instrument in the literature. The 24 item scale measures the five subscales/dimensions of OCB, namely altruism, conscientiousness, sportsmanship, courtesy, and civic virtue. The average of all 24 items calculates overall OCB. The study results indicate that OCB does exist amongst the academic staff at the Faculty of Economics and Administrative Sciences; however the results are only partial in that the study is still ongoing. The complete study results will enable the researcher to conclude whether academic staff from different faculties indicates different levels of OCB
Graph operations of Randic index
No full textThe Randic index R(G) of a graph G whose vertex i and j has degree di and dj respectively is defined by sum of the 1/didj if the vertices i and j are adjacent. We introduce the weighted Randic index, we establish basic mathematical properties of Randic index and we investigate its behavior under some graph operations in this paper
Advances in Managing Tourism Across Continents: Volume 3
No full textAdvances in Managing Tourism Across Continents book consists of peer-reviewed (double-blind) research papers that were presented at the Fourth Managing Tourism Across Continents (MTCON23) conference in March 2023. The book is published by the University of South Florida M3 Publishing as open-access.
ISBN 978-1-955833-09-7 TABLE OF CONTENTS Do isomorphic pressures impede greenwashing in the hospitality industry? A theoretical framework Mert Gurlek Tax in tourism research: A bibliometric analysis Serap Ozdemir Guzel and Tugce Uzun Kocamis COVID-19 and the “most magical place on earth”: Applying the IDEA model to theme park crisis messaging Lakelyn E. Taylor, Gaurav Panse, Carissa Baker, Deanna Sellnow, Timothy Sellnow, and Michael Strawser User-generated content, satisfaction, and WOM in the context of cultural/heritage site Mahlagha Darvishmotevali and Hu Qian Impact of management polyphony in family business: A review Ali Sukru Cetinkaya and Serife Sogancioglu The effect of entrepreneurial traits on career planning in food processing enterprises Ali Sukru Cetinkaya Online gastronomy image: Content analysis of TripAdvisor reviews of restaurants in Istanbul Rana Sat Leisure activity and place requirement for a better life in slow city Ahlat Selin Kama and Nurullah C. Agbay Disabled rooms in hotel industry: A research on perception for disabled rooms Osman Nuri Ozdogan, Cihan Yilmaz, and Eva Abramuszkinova Pavlikova Value creation and employee branding through employees: A model proposal for hotel businesses Ibrahim Cetin, Gunseli Gucluturk Baran, Orhan Icoz, and Tulay Polat Uzumcu The impact of environmental knowledge and environmental behavior of hotel employees on environmental performance: A model proposal Uygar Turgut, Isil Arikan Saltik, Umut Avci, and Fevzi Okumus Reflection of COVID-19 pandemic on organizational trust perception of hotel employees: An intergenerational comparison Isil Arikan Saltik and Yasin Karasu Who is the human resources manager? Metaphorical perceptions of human resources managers towards their profession Ebru Gozen and Aylin Alan Bibliometric analysis of sustainability in gastronomy research Nihan Akdemir and Bilsen Bilgil
Fear of Cancer Recurrence in Women with Gynecological Cancer: A Systematic Review
No full textAlthough some types of gynecological cancer have a poor prognosis and high recurrence rate, less is known about the fear of cancer recurrence (FCR) in gynecological cancer patients than in other cancer populations. Psychosocial problems may be experienced more in gender-specific cancers. In order to prevent future health problems related to FCR, it is critical to identify the factors affecting FCR in different subgroups and to develop various interventions. The aim of this study was to review the literature on the factors affecting the FCR in women diagnosed with gynecological cancer and interventions to reduce the FCR. The protocol of this review was registered with PROSPERO (Registration number: CRD42023452570). A total of 18 studies from 10 different countries were included in the systematic review by searching on the PubMed, ScienceDirect, Ovid, Sage, Scopus, Taylor & Francis, Web of Science, CINAHL Complete, and Cochrane databases were searched in English between July-August 2023 without year limitation to identify studies on FCR in women with gynecological cancer. Data from eligible articles were extracted and appraised for quality by two independent reviewers. In addition, bibliometric analysis method was used to visually map the studies on FCR in women with gynecological cancer according to the most frequently repeated keyword, number of citations, most cited author and publication year. The findings of the study are categorized and interpreted under two headings, Interventions affecting FCR and Factors influencing FCR. Sociodemographic characteristics such as age, economic status, social support, family history of cancer, psychological characteristics, quality of life and symptoms affect FCR. Deterioration in mental health and emotional weakness predict higher FCR, increase in positive emotional expression reduces FCR. The negative effects of cancer on sexuality and relationships, concerns about future treatments and emotional problems, and anxiety about not being able to fulfill their roles at home/work are the underlying reasons for the FCR. Therefore, professional psychosocial support should be provided to cancer survivors. Further studies are needed to identify the factors that trigger FCR and to plan interventions accordingly. This study is expected to encourage health professionals to plan interventions and research for gynecological cancer survivors.Acknowledgement: The authors express their gratitude to all the authors of the publications used in the preparation of the systematic review. Funding Statement: The authors received no speci fi c funding for this study. Author Contributions: Conception and design: oznur Korukcu. Material preparation, data collection and analysis were performed by S erife Buyukokudan and oznur Korukcu. Manuscript writing and revision: S erife Buyukokudan and oznur Korukcu Final approval o
Steady and Unsteady Pressure Scour under Bridges at Clear-Water Conditions
No full textBridge studies are usually designed for an open channel flow condition, but the flow regime can switch to pressure flow if the downstream edge of a bridge deck is partially or totally submerged during a flood.
The aim of this paper is to study the pressurized flow scour under a bridge deck and downstream deposition governed by both steady and unsteady clear-water flow conditions. Experimental conditions involve clear-water flow characterized by a flow depth and velocity, a rectangular-shaped bridge deck, and a stepwise flood hydrograph defined by its time to peak and peak discharge. Different flow conditions were considered in confined flow under the bridge deck.
Relationship between pressure-flow scour and flow is presented by experimentally. Additionally, effects of single-peaked stepwise flow hydrographs (unsteady flow conditions) on bridge pier scour depth are investigated under clear-water pressure-flow conditions, whereas previous researches mainly focused on the equilibrium pressure scour under steady flow.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author
Fumarate hydratase in cancer research: scientific trends and findings over 22 years
No full textAbstract Objective Fumarate hydratase (FH) is a key enzyme in the Krebs cycle and cellular energy metabolism, playing a crucial role in tumorigenesis. It is considered a prognostic, diagnostic, and therapeutic target for many types of cancer. Therefore, FH is a popular scientific subject in cancer research. The current study aimed to identify cancer research in the WoS database and examine studies conducted on FH molecules using bibliometric indicators. Methods The keywords “fumarate hydratase” OR fumarase” AND “cancer OR tumor OR neoplasm” were used to search the WoS database. This search was performed using abstracts, titles, and keywords. The "Article" and “Review” options were used to access the data of papers published between 2002 and March 2024. Results A total of 840 publications (616 articles and 224 reviews) were published by the end of March 2024. Research output on FH and cancer has significantly increased recently, with the highest number of publications in 2020 (n = 69, 8.214%). The most commonly used language was English (n = 823, 97.976%), and the USA led in productivity, contributing 306 studies (36.429%). The University of Helsinki is the most productive affiliation with 138 published articles. The researcher who conducted most studies (n = 58, 6.904%) was also the most-cited author, with 1562 citations. In the current bibliometric study, “hereditary leiomyomatosis”, "mutations", and "renal-cell cancer" were frequently included in publications. Conclusion This bibliometric study provides a quantitative overview of FH research in oncology and presents the most recent FH status in cancer research
