bluuebunny/crossref_metadata_2025 huggingface dataset:
The Persistence of First-Generation African American Female Students at Private HBCUs
Authors: Griffin Sylvia D. , Brown Walter A.
Published: September 2023

The purpose of this study was to understand the persistence or lack of persistence of first-generation, African American female students at an Historic Black College and University (HBCU). The study utilized Tinto’s (1975) student integration model for persistence as the foundation for the research questions. Those questions were: 1) How does pre-entry attributes influence the persistence of first-generation African American female students? 2) How does academic integration influence the persistence of first-generation African American female students? And 3) How does social integration impact the success of first-generation African American female students? Thirteen first-generation African American female students aged 18 to 21 years old, who were juniors or seniors at an HBCU, shared their experiences. Nine themes emerged from this research: socioeconomic factors, support systems, academic preparedness, faculty and staff engagement, academic and financial support, and campus resources and support services. This study found that understanding and addressing the socio-cultural dynamics of these students can contribute to the development of targeted interventions and support mechanisms for this population. In addition, socioeconomic factors, such as income level, parental education, and financial resources, often provide distinct hurdles in terms of academicpreparedness for college-level coursework. Active engagement by faculty and staff with these students improves their sense of belonging, promotes emotional wellbeing, and furthers academic success. Finally, academic and financial support can address the specific issues and barriers that these students commonly face.
GENÇ YETİŞKİNLERDE DİJİTAL BAĞIMLILIK VE ÖZ-KONTROL İLİŞKİSİNDE PSİKOLOJİK SAĞLAMLIĞIN ARACI ROLÜ
Authors: ARSLANKOÇ Sinem , SALDUZ DORUK Çağla , KOÇAK Orhan
Published: September 2023

Dijital teknolojilerin aşırı veya sorunlu kullanılması ile oluşan dijital bağımlılık kavramı birçok kavramla etkileşim halinde olmakta ve bu kavramlar arasında öz-kontrol ve psikolojik sağlamlık kavramları yer almaktadır. Bireylerin öz-kontrolleri veya psikolojik sağlamlıkları dijital bağımlılık düzeylerini etkilemektedir. Bu bağlamda çalışmanın amacı genç yetişkinlerde dijital bağımlılık ve öz kontrol ilişkisinde psikolojik sağlamlığın aracı rolünü basit aracılık modeliyle incelemektir. Bu noktada nicel araştırma yöntemiyle tasarlanan çalışmanın örneklemi İstanbul’da ikamet eden 18-30 yaş arası genç yetişkin bireylerdir ve tamamen gönüllülük esasına dayalı bir şekilde toplam 316 kişi çalışmaya dahil edilmiştir. Araştırmanın amaçları doğrultusunda veriler SPSS 23.0 programı ve Process v 4.0 eklentisi ile analiz edilmiş ve güvenilirlik ve normallik, faktör, korelasyon, regresyon ve aracılık analizleri kullanılmıştır. Çalışma kapsamında psikolojik sağlamlığın aracılık etkisi istatistiksel olarak anlamlı bulunmuş ve bu etkinin dijital bağımlılığı azaltıcı bir rolde olduğu tespit edilmiştir. Böylece psikolojik sağlamlığın koruyucu bir rol oynadığı görülmüştür.
Kassandra Damgası ve Dünyanın Sonundayız Eserlerinde Kıyamet Temsilleri
Authors: DAĞ Ülfet
Published: September 2023

Kassandra Damgası ve Dünyanın Sonundayız eserlerini apokaliptik bağlamda karşılaştırmalı bir şekilde ele aldığımız bu çalışmada iki ana tema odak noktasıdır. İlkin teorik ve kavramsal olarak kıyametin anlamları ve edebiyat tarihi içindeki yeri konumlandırılmıştır. İkincil olarak kıyamete dair çağdaş söylemlerin söz konusu eserlerden hareketle metinsel örneklenmesi ve analizi yapılmıştır. Kassandra Damgası ve Dünyanın Sonundayız eserlerindeki kıyamet düşüncesinin izleri sürülmüş ve kıyamet düşüncesinin evrimi değerlendirilmiştir. Bu noktada kıyamet, yıkımın farklı dayanakları üzerinden hareketle dünyanın sona gidişini işaret eder. İki eserde kıyamet dair görünümler düzen krizi ve şiddetten hareketle ele alınmıştır. Her iki dünyada da düzenin bozulması, doğa ve sosyal yapının çökmesiyle isyanın başlaması söz konusudur. Bu kurgusal şiddetle, ayaklanma, devrim ve terörizmden oluşan bir dünya algısı yansıtılmaktadır. Böylelikle düzenin kırılganlığı ve çöküşü tasvir edilmektedir. İki eserdeki kıyamet kurgusunda düzen krizi olağanüstü bir durumu yaratırken insanların özgürlüğünün kalıcı olarak askıya alınması, egemen bir gücün ortaya çıkması ve bu gücün düzeni yeniden sağlamak için her türlü eylemi mübah görmesi işlenmektedir. Demokrasi yerine diktatörlük, özgür birey yerine konformist birey, hukuk yerine yargısız infazın yerini alan normlar silsilesinin oluşturduğu sona giden bir Dünya kurgulanmıştır.
ROLA ŻYWIENIA I SUBSTANCJI BIOAKTYWNYCH POCHODZENIA ROŚLINNEGO W PREWENCJI CHORÓB NOWOTWOROWYCH
Authors: GODERSKA KAMILA , NIKRANDT GRZEGORZ
Published: September 2023

Background. Cancer is one of the leading causes of mortality worldwide. Carcinogenesis is a multistage and complex process that may be partially reversible. In the process of carcinogenesis, numerous metabolic pathways associated with normal cell growth and division are disturbed. An important role in the prevention of cancer is played by a lifestyle characterized by maintaining a healthy weight, an appropriate level of physical activity and increased consumption of food with anti-cancer properties. Results and conclusion. The paper presents the latest literature reports on the pathogenesis of cancer and the impact of diet on the risk of its occurrence. In addition, known models of carcinogenesis and their impact on the development of knowledge in the field of oncology are discussed. Current recommendations on nutrition in cancer prevention, developed by the American Cancer Research Fund, are also presented. The aim of this paper is also to present the role of selected bioactive components of plant origin in cancer prevention. The paper presents basic information on carcinogenesis and the dietary anticancerogen mechanisms . Individual groups of bioactive compounds showing anticancer activity are discussed: dietary fiber, phenolic compounds, flavonoid phytoestrogens (classified as phenolic compounds) and nonflavonoid compounds, betalains, glucosinolates, phytates and carotenoids. An attempt was made to systematize knowledge on the anticancer properties of these compounds. By altering the diet, the supply of plant-derived bioactive components should be increased, which, through various mechanisms, have the ability to inhibit various phases of tumor formation and reduce the supply of potential carcinogens.
Analiza zawartości wielopierścieniowych węglowodorów aromatycznych w serach wędzonych
Authors: SADOWSKA-ROCIEK ANNA , SURMA MAGDALENA , STANASZEK KONRAD
Published: September 2023

Background. Traditional cheeses, including smoked products, are one of the most recognizable products among consumers, due to their taste and relationship with regional history. However, the smoking process can be a source of cheese contamination due to the presence of some toxic compounds in smoke. The aim of the study was to analyze the content of polycyclic aromatic hydrocarbons (PAHs) in traditional smoked and non-smoked cheeses, as well as in industrial smoked cheeses (23 samples in total). The content of PAHs (18 compounds) was determined using the modified QuECHERS method with final detection by gas chromatography coupled with mass spectrometry. Results and conclusion. The total PAH content varied and ranged from 119.0 to 257.6 μg/kg in traditional non-smoked cheeses, 137.8 ÷ 625.1 μg/kg in traditional smoked cheeses and 131.8 ÷ 277.7 μg/kg in industrial smoked cheeses. Indeno[1,2,3-c,d]pyrene, dibenzo[a,h]anthracene, benzo[g,h,i]perylene were not detected in any of the analyzed cheese samples, while naphthalene, 2-methylnaphthalene, 1-methylnaphthalene, acenaphthylene, fluorene, phenanthrene, anthracene, fluoranthene were identified in all the tested samples. Benzo[a]pyrene was identified in nine cheese samples (6/11 samples of traditional smoked cheeses, one sample of non-smoked cheese and two out of seven samples of smoked cheeses from industrial production), in the range of 1.5 ÷ 6.5 μg/kg. The occurrence of the so-called PAH markers was found in both smoked and non-smoked cheeses, which suggests that contamination with the hydrocarbons being examined might occur as early as at the raw material production stage, before the smoking process. However, no statistically significant differences were found between the three groups of cheeses, both in the total PAH and the PAH4 sum.
THE CONTENT OF POLYPHENOLS AND CAFFEINE IN SPENT COFFEE GROUNDS OBTAINED FROM VARIOUS HOME BREWING METHODS
Authors: MIŁEK MICHAŁ , KLOC MONIKA , DŻUGAN MAŁGORZATA
Published: September 2023

Background. Grounds generated during coffee brewing as waste produced in the world in millions of tons per year seem to be an interesting source of bioactive substances for further use. The aim of the study was to evaluate the content of bioactive components in coffee grounds obtained from coffee brewing using popular methods. Coffee grounds obtained as a result of brewing Arabica coffee using five methods: pouring, drip, crucible, coffee maker and espresso machine were tested. The content of phenolic acids and total phenols, as well as antioxidant activity (by means of DPPH• and FRAP methods) and caffeine (for the first time by means of high-performance thin layer chromatography (HPTLC) technique) were assessed. Results and conclusion. A coffee brewing method significantly affects the residue of bioactive compounds in grounds. The results obtained allow to conclude that the methods in which the contact of a ground grain with water is short, and a grain is coarsely ground, leave the most polyphenols and caffeine in coffee grounds. Such techniques were those using a drip and espresso machine (total phenolic content up to 12.29 and 14.88 mg gallic acid equivalents/g, respectively) and pouring in the case of caffeine (21 mg/g). In turn, coffee grounds obtained from brewing coffee in a crucible, in which most of the determined substances were extracted into the infusion, had the least bioactive compounds. Out of all the extraction systems being evaluated, aqueous ethanol (50 %) was indicated as the most effective one. The use of spent coffee grounds as a source of bioactive substances may be a valuable way to valorize large amounts of gastronomic waste.
RELATIONSHIP BETWEEN FOOD INSECURITY FOR VARIABLE REASONS, PHYSICAL ACTIVITY AND SELECTED HEALTH SITUATIONS AMONG OLDER ADULTS IN POLAND: A CROSS-SECTIONAL STUDY
Authors: GAJDA ROBERT
Published: September 2023

Background. As humans age, their level of physical activity declines, and the incidence of health problems and disability increases. In addition, the elderly experience food insecurity. The aim of the study was to establish the relationship between food insecurity for variable reasons, the level of physical activity and the incidence of metabolic diseases and those leading to loss of mobility. The study was conducted among 760 people aged 65 and older in late 2018 and early 2019 in two regions of Poland. Questions on food security were adapted based on the HFSS questionnaire and those on demographic characteristics, physical activity and selected health situations from the KomPAN questionnaire. Reasons for food insecurity were identified based on a principal component analysis (PCA). Ward's hierarchical classification of variables and logistic regression analysis were used to assess the relationship between variables. A chisquare test was used to verify differences between variables. A value of p < 0.05 was considered the threshold for significance. Results and conclusion. Based on the PCA analysis, two factors were identified to describe the reasons for food insecurity. The first factor was termed „economic-social‟ reasons and the second one „spatial-health‟ reasons. The first factor was associated with moderate or high physical activity, a health situation that was the same as or better than that of a person‟s peers, a normal body weight or lower prevalence of obesity and the absence of metabolic diseases and diseases that lead to loss of mobility. The second factor was associated with low or moderate physical activity, a health situation that was the same as or worse than that of a person‟s peers, being overweight or obese, having at least one metabolic disease and having diseases leading to loss of mobility. The study confirmed that the „economic-social‟ reason for food insecurity is more prominent in people with a higher level of physical activity and better health, while the „spatial-health‟ reason is more prominent in people with a lower level of physical activity and poorer health.
SPIRULINA (ARTHROSPIRA PLATENSIS) JAKO SKŁADNIK NAPOJÓW FUNKCJONALNYCH
Authors: SIDOR EWELINA , TRYBULEC KAROLINA , TOMCZYK MONIKA , DŻUGAN MAŁGORZATA
Published: September 2023

Background. Spirulina is categorized as so-called super foods, the properties of which are supposed to have a beneficial effect on the human body, and is used as a natural food coloring additive. The aim of the study was to evaluate the antioxidant and osmotic properties of beverages prepared using various forms of commercially available spirulina and coconut water as a natural isotonic solvent. Based on the determined absorption spectra and antioxidant properties of spirulina extracts (three batches of green and two batches of blue spirulina), samples with the highest activity were selected for the next stage of the study. Beverages were made using coconut water (control sample) and green or blue spirulina with increasing additions of 0.1, 0.25 and 0.5 % w/v (seven beverages in total). The polyphenol content, antioxidant (DPPH•) and osmotic properties of the produced beverages were compared. Results and conclusion. It was shown that drinks based on blue spirulina had higher protein, polyphenol content as well as antioxidant activity, proportional to the share of additive used, than drinks with green spirulina. The osmolality of all drinks ranged from 315 to 336 mOsm/kg H2O, which meets the requirements for isotonic drinks. Drinks based on blue spirulina were characterized by an intense blue color and better organoleptic characteristics compared to green spirulina and coconut water, however, the addition of 0.5% adversely affected the organoleptic qualities of the drink. The beverages produced can be categorized as functional beverages, well hydrating the body and additionally enriched with valuable nutrients.
Ocena fizykochemiczna i sensoryczna soku pomarańczowego wzbogaconego sokiem z rokitnika lub pigwy
Authors: RYZNAR-LUTY AGNIESZKA , LUTOSŁAWSKI KRZYSZTOF
Published: September 2023

Background. Orange juice has high taste acceptability among juices offered on the global market. Therefore, it appears to be a very good matrix for transferring functional ingredients. Both sea buckthorn and quince fruits are rich sources of health-promoting ingredients. Incorporating them as an ingredient into other foods to obtain functional foods could be an innovative approach in processing. The purpose of this study was to investigate the effect of the addition of quince or sea buckthorn juice to orange juice on its selected sensory characteristics and physicochemical parameters. The research material consisted of twofruit juices prepared by mixing orange juice and quince or sea buckthorn juice in a volumetric ratio of 4:1. The levels of total extract, pH, total acidity, L-ascorbic acid and antioxidant activity were marked in the juices. In addition, color determination was carried out and sensory analysis was performed. Results and conclusion. The orange juice enriched with sea buckthorn juice had similar antioxidant activity, compared to the orange juice, while its L-ascorbic acid content increased. The resulting juice, however, did not receive the taste and aroma approval of the sensory panel. The addition of quince juice to orange juice did not significantly change the L-ascorbic acid content, but had a positive effect on the value of antioxidant potential. The overall sensory quality of the resulting two-fruit juice was lower, compared to the evaluation of pure orange juice, however, the differences perceived did not exceed 1.4 points. Quince juice can be a valuable component of orange juice-based juice.
Permanent Deformation Evaluation and Instability Prediction of Semi-rigid Pavement Structure Using Accelerated Pavement Testing and Finite Element Method
Authors: Liu Zhen , Gu Xingyu , Dong Qiao
Published: September 2023

A rutting prediction method for semi-rigid pavement structures using accelerated loading tests and finite element analysis was proposed in this study. Firstly, dynamic modulus and creep tests of three pavement materials were performed by changing sizes and temperatures. The prediction equation was obtained and verified using the falling weight deflectometer test and back-calculation modulus, and it was coupled into a modified Burgers model for rutting simulation for full-scale pavement structures. Results showed that the dynamic modulus of pavement materials increased with increasing specimen sizes and decreased with increasing temperature. SUP-25 had an enormous fatigue damage value (0.419) after 5,400 times repeated loading. The error between the rutting simulation and test results was 2.87 %, indicating that the model effectively applies to multilayer composite materials. Rutting deformation at one million loading times in summer was 4.6 times that in winter. From 22 to 120 km/h, rutting deformation decreased by 72.6 %. Axle load increased by 100 %, and rutting depth increased by 46.9 %, indicating that vehicle overload should be restricted, especially in low-speed sections in high-temperature areas. Rutting deformation entered the accelerated accumulation stage when the cumulative action times were more than 25 million, which requires timely maintenance and repair of pavement structures.
Experimental Study on Influencing Factors Associated with a New Tunnel Waterproofing for Improved Impermeability
Authors: Yuan Bingxiang , Liang Jingkang , Lin Hengzheng , Wang Wanying , Xiao Yao
Published: September 2023

Leakage associated with deformation joints seriously affects tunnel structures. Existing tunnel deformation joint waterproofing structures have high construction costs and inconvenient maintenance requirements. This work proposes a new tunnel deformation joint waterproofing structure. Specifically, this structure combines Ω type water stop, an externally attached water stop, and a concrete component. An impermeability test compares standard waterproofed specimens to improved specimens. Under a variety of deformation joint widths, fatigue loading times, and displacement difference, the variation law of the seepage quantity and impermeability pressure values are obtained. The study also examined the ability of the waterproofing membrane and waterproofing coating to improve on standard practices currently used. The seepage quantity test results indicate a positive correlation of displacement difference and fatigue loading times with seepage quantity. The larger the deformation joint width of the specimen, the more the new construction process demonstrated its ability to resist high fatigue loading times and large displacement differences. As the fatigue loading times increase, the impermeability pressure value of both types of specimens decrease; however, the impermeability pressure value of the improved specimen was less affected, which verifies an increased fatigue resistance. Both waterproofing membranes and waterproofing coatings improve the waterproofing ability of the standard specimen, while the impermeability law demonstrated similar results to the standard process specimen. Ultimately, these findings reveal the value of selecting appropriate deformation joint widths under different practical engineering conditions.
I-V-characteristics of Schottky diodes based on graphene/n-Si heterostructures
Authors: Koziarskyi I. P. , Ilashchuk M. I. , Orletskyi I. G. , Koziarskyi D. P. , Myroniuk L. A. , Myroniuk D. V. , Ievtushenko A. I. , Danylenko I. M. , Maistruk E. V.
Published: September 2023

The authors investigated the electrical properties of graphene/n-Si Schottky diode heterostructures obtained by mechanical exfoliation of graphite to thin-layer graphene in an aqueous solution of polyvinylpyrrolidone as a result of the dynamics of the dispersed graphite mixture under the action of a mechanical blender. The graphene/n-Si structures differed in terms of duration of applying graphene films on n-Si substrates: 5, 10 and 15 min. The temperature of the substrates did not exceed 250°C. The formation of graphene layers was confirmed by the study of Raman scattering spectra in the frequency range of 1000—3250 cm–1, which show G and 2D bands with the features characteristic of low-layer graphene. The dependence of the electrical properties of the investigated surface-barrier graphene/n-Si structures on the duration of sputtering of graphene films was established. It was found that the value of the contact potential difference φk was 1.35, 1.32 and 1.27 V and the series resistance at room temperature was 3.4•106, 3.4•103 and 3.7•103 Ω for structures with the duration of graphene layer deposition 5, 10 and 15 min, respectively. The formation of both forward and reverse currents was dominated by the tunneling of charge carriers through the potential barrier.
BIST BANKA’da işlem gören bankaların COVİD-19 Pandemi dönemindeki finansal performanslarının farklı kriter ağırlıklandırma yöntemleri ile analizi
Authors: Gökdemir Tuğba , Gökay Emel Gül
Published: September 2023

Çalışmanın amacı, COVİD-19 Pandemi dönemi için Borsa İstanbul (BIST)`da faaliyet gösteren bankaların finansal performanslarını incelemek ve pandemi dönemi öncesi ile karşılaştırmaktır. Çalışmada; bankaların finansal performanslarını ölçmede kullanılan kriterlerin ağırlık değerlerini belirleme ve bankaları performanslarına göre sıralama için birden fazla Çok Kriterli Karar Verme (ÇKKV) yönteminden yararlanılmıştır. Kriterlerin ağırlıklarını elde etmek için CRITIC ve DEMATEL, alternatiflerin sıralarını elde etmek için ise Amerikan Ekolüne ait VIKOR, TOPSIS ve Avrupa Ekolüne ait PROMETHEE II yöntemleri tercih edilmiştir. Ayrıca, bütünleşik sıra elde etmek amacı ile BORDA Sayım yöntemi, sıralamaların benzerliğini analiz etmek için ise Sperman Sıra Korelasyon Katsayısı tercih edilmiştir. Çalışma sonucunda, pandemi döneminde performansı en yüksek olan bankaların kalkınma bankaları, en düşük olanların ise kamu mevduat bankaları olduğu belirlenmiştir. CRITIC yöntemi ile (2019-20-21) en önemli kriterin Likit Aktifler/Toplam Aktifler (%13 ağırlıklı), DEMATEL yöntemi ile ise en önemli kriterin Ortalama Öz kaynak Kârlılığı (%12,2 ağırlıklı) kriteri olduğu tespit edilmiştir. Sperman Korelasyon katsayıları incelendiğinde; en iyi sıralamaları veren yöntemin PROMETHEE II, en kötü sıralamaları veren yöntemin ise VIKOR yöntemi olduğu görülmüştür.  Literatür incelemesinde bankaların finansal performansının COVİD-19 Pandemi dönemindeki analizinin ve bunun için farklı ÇKKV kriter ağırlıklandırma yöntemlerini temel alan sıralama yöntemlerinin performansının karşılaştırıldığı bir çalışmaya rastlanılmamıştır. Ayrıca yerli literatür çalışmalarında ÇKKV yöntemlerinin Ekol başlığı altına alındığı bir çalışmaya rastlanmamıştır. Bu yönü ile çalışma özgün olup literatüre katkı sağlayacağı düşünülmektedir. Ayrıca, önerilen yöntemin faydalı bilgiler sunduğu ve birçok işletmeye uygulanabilir olduğu ve paydaşlar için karmaşık kriter problemlerinin üstesinden gelmede yardımcı olacağı düşünülmektedir.
The impact of job motivation on organizational commitment: A study on travel agencies
Authors: Kara Yunus Emre , Acar Ayşegül
Published: September 2023

This study examines job motivation's influence on organizational commitment among employees of Group A travel agencies operating in Istanbul. Adopting a qualitative research design, data for this study were collected through face-to-face surveys using a convenience sampling method from travel agency employees in Istanbul from January to April 2023. The analysis of the obtained data reveals a positive impact of job motivation on organizational commitment. This study provides a valuable contribution to understanding the relationship between job motivation and organizational commitment, as well as enhancing the performance of agency employees. The findings can assist businesses in developing strategies to increase employee motivation.
Yeşil insan kaynakları yönetiminin yeşil örgütsel davranışa etkisinde çalışan koçluk ilişkisinin aracı rolü
Authors: Öztırak Mesut
Published: September 2023

Bu çalışmanın amacı, yeşil insan kaynakları yönetimi uygulamalarının algılanan etkisinin çalışanların yeşil örgütsel davranış düzeyi üzerindeki etkisinde çalışan koçluk ilişkisinin aracı rolünü analiz etmektir. Araştırmanın evrenini İstanbul ilinde faaliyet gösteren özel sağlık sektörü çalışanları oluşturmaktadır. Anket yöntemi kullanılarak 409 çalışan kişiye ulaşılmıştır. Araştırmada Process analizi kullanılarak, aracı değişken için ve her bir alt boyut için analiz yapılmıştır. Çalışma sonuçlarına göre, yeşil insan kaynakları yönetiminin, yeşil örgütsel davranışa etkisinde çalışan koçluk ilişkisi ve her bir boyutunun aracılık rolü tespit edilmiştir. Yeşil insan kaynakları yönetimi, yeşil örgütsel davranışı pozitif etkilemektedir. Yeşil insan kaynakları yönetimi, çalışan koçluk ilişkisini pozitif etkilemektedir. İşletmelerin sürdürülebilirlik hedeflerine ulaşmak için yeşil insan kaynakları yönetimi uygulamalarını geliştirmeleri gerektiği ortadadır. Çalışanların bu yönde gelişmeleri için koçluk ilişkisinden yararlanılabilir. Bu çalışma, yeşil insan kaynakları yönetimi, yeşil örgütsel davranış ve çalışan koçluk ilişkisi alanlarında gelecekteki araştırmalar için bir temel oluşturacak ve literatüre katkı sağlayacaktır.
Decoding the nexus of digital transformation and dynamic capabilities through harmonic centrality in the aviation sector
Authors: Yılmaz Ayşe Aslı , Tuzlukaya Şule
Published: September 2023

The aviation sector benefits from the rise of Society 5.0 and the onset of digital transformation. These developments offer distinct prospects for improving employee well-being, quality, and retention, all while simultaneously providing societal value. This research's primary objective is to investigate digitalisation's effects on dynamic capacities in the aviation industry, with a special emphasis on airport operations. By using the analytical skills of network analysis, this study examines the significance of network analysis in comprehending the impacts of digital transformation on dynamic capacities. The primary research question examines the potential use of network analysis to get a deeper understanding of the impact of digital transformation on dynamic capacities. The study utilises Harmonic Centrality, a centrality measure derived from network research, and implements it using the NetworkX library based on the Python programming language. The study is carried out at Esenboğa Airport, located in Ankara, Turkey, with a specific focus on airport management, a crucial aspect of the aviation sector. Using network analysis in conjunction with Harmonic Centrality offers a great methodology for understanding the influence of digital transformation on dynamic capacities, hence becoming a noteworthy addition to this scholarly article.
KEYWORDS Digital Transformation, Dynamic Capabilities, Harmonic Centrality, Network Analysis, NetworkX
The effects of project-supported education about food production on teacher candidates’ systems thinking skills
Authors: Yener Hüseyin , Şahin Fatma
Published: September 2023

Systems thinking is the interactive working of interconnected parts for a specific purpose. Global food production processes include sustainability, economics, engineering, nature and social dimensions. In this respect, it is important to develop the systems thinking skills of teacher candidates. This study aimed to examine the effect of project-supported education on the system thinking skills of teacher candidates on food production. A mixed research design and single-group pre-test-post-test experimental design were used in the research. The data were obtained from the systems thinking skill test, open-ended questions and concept maps. The quantitative study group of the research consisted of 100, and the qualitative study group consisted of 30 science teacher candidates. It was found that there was a significant difference between the system skill test pre-test and post-test. The concept maps developed by the teacher candidates were evaluated in terms of their level of understanding of the system's structure, function and behaviour and whether they could establish a link between the sectors related to food production. In the research, it was found that systems thinking skill tests and concept maps were effective in detecting systems thinking skills. The most important finding in this study was understanding the interdependence of systems, which is the most basic feature of ST.
Çok kanallı gıda marketlerinde müşteri memnuniyetinin çevrimiçi deneyim ve sadakat ilişkisindeki aracılık rolünün incelenmesi
Authors: Azad Ulduz , Kırcova İbrahim
Published: September 2023

Perakendeciler daimî olarak tüketicilere sundukları değeri arttırmak için çaba içindedirler. Özellikle çok kanallı market perakendecileri, geleceğin perakende sektöründe kendilerini rakiplerinden farklı kılmak için müşteri odaklı bir çevrimiçi deneyim tasarlamak ve çevrimiçi hizmet esnasındaki sınırlı temas süresi içinde müşterilere olumlu bir deneyim sağlamayı hedeflemektedirler. Bu çalışma, çevrimiçi kanallarda büyümekte olan gıda perakendeciliğinde faaliyet gösteren çok kanallı perakendecilerdeki müşteri memnuniyetinin, müşteri deneyimi ile müşteri sadakati arasındaki aracılık ilişkisini araştırarak, dijitalleşme ile birlikte değişmekte olan müşteri beklentileri ve hızlı tüketim alanındaki perakende dinamikleri literatüründeki boşluğu doldurmayı ve pratik öneriler sunmayı hedeflemektedir. Araştırmada çevrimiçi gıda perakendecilerinden alışverişi yapan 219 katılımcıdan toplanan anket cevapları SPSS for Windows 22.00 ve AMOS 24.0 programı kullanılarak analiz edilmiş, müşteri deneyimi ile müşteri sadakati arasında müşteri memnuniyeti ve müşteri hizmet deneyimi bilincinin aracılık rolü yapısal eşitlik modellemesi ile test edilmiştir. Aracılık hipotezlerinin test edilmesi için bootstrap (n=2000) yöntemi kullanılmış ve araştırma sonucunda müşteri hizmet deneyimi bilincinin aracılık rolü üstlendiği, memnuniyet değişkeninin aracılık etmediği bulunmuştur.
Ekonomi politikası belirsizliğinin nakit oranlarına etkisi: BİST 100 endeksindeki firmalarda bir uygulama
Authors: Dinçergök Burcu
Published: September 2023

Bu çalışmada ekonomi politikası belirsizliğinin firmaların nakit oranları üzerindeki etkisi ve finansal kısıtların bu ilişkideki rolü analiz edilmektedir. Çalışma 2002-2021 döneminde BİST100 endeksinde yer alan firmaların verileri kullanılarak panel veri analizi ile gerçekleştirilmiştir. Kullanılan belirsizlik endeksleri sırasıyla Dünya Belirsizlik Endeksi, Avrupa Belirsizlik Endeksi ve Türkiye Belirsizlik Endeksleridir.  Çalışma sonuçları, kullanılan tüm belirsizlik endeksleri için endeksteki artışın nakit oranlarını artırdığını göstermektedir. Elde edilen sonuçlar nakit tutma güdülerinden ihtiyatlılık güdüsü ile açıklanmaktadır.  Çalışmada ayrıca firmalar finansal kısıtlılıklarına göre gruplara ayrılmıştır. Gruplamalar, Kaplan ve Zingales (1995) endeksine, firmaların kâr payı dağıtıp dağıtmamalarına ve kâr payı dağıtım oranlarına göre yapılmıştır. Teorik beklentinin aksine, sonuçlar sadece finansal kıstı göreceli olarak daha az olan firmalarda, ekonomi politikası belirsizliği ve nakit oranları arasındaki pozitif ilişkinin istatistiki açıdan anlamlı olduğunu göstermektedir.
A panel data analysis of the determinants of advertising intensity in the Turkish manufacturing sector
Authors: Yurtseven Ömer , Günalp Burak
Published: September 2023

This study investigates the determinants of advertising intensity using panel data on 66 four-digit Turkish manufacturing industries from 1993–1999. The results from pooled OLS and fixed-effects regressions support a quadratic relationship between advertising intensity and concentration: Advertising intensity first increases with the concentration ratio, and when the concentration ratio rises above a certain threshold, increases in the concentration ratio decrease the advertising intensity. The results also indicate that more profitable and faster-growing industries advertise more intensively. Product durability, exporting intensity, and the sale of consumer goods appear to be additional factors influencing advertising intensity. However, the evidence regarding these factors is not very strong.
The role of organizational citizenship behaviour in the relationship between the dark triad and the intention to leave
Authors: Çetin Zeki
Published: September 2023

The study aimed to examine the mediating role of organizational citizenship behaviour (OCB) in the relationship between the dark triad (DTC) and intention to leave (TOI). A sample of 412 employees, with a minimum of five years of experience, were selected from various sectors in Turkey. Participants completed self-report measures and data analyzed with SPSS 26.00 and Smart PLS 4. The results revealed significant positive effects of DTC on TOI. On the other hand, OCB demonstrated a negative effect on TOI. Furthermore, DTC hurt OCB. The mediation analysis demonstrated that OCB played a significant mediating role in reducing the effect of the DTC on TOI. The findings underscore the detrimental influence of DTC on TOI among employees across diverse sectors in Turkey, emphasizing the importance of fostering OCB as a means to mitigate the negative consequences of DTC on TOI.
Yetenek yönetiminin çalışan performansı üzerine etkileri: Satış elemanları üzerine bir uygulama
Authors: Kurt Demsur Okan , Sağtaş Saadet
Published: September 2023

Günümüzde işletmeler arasında oluşan rekabet ortamı, işletmelerde elde edilen ürünlerin satışı alanında da üst seviyeye çıkmaktadır. Ürün açısından her alanda birden fazla seçeneğin bulunması rekabeti daha çetin hale getirmektedir. Bu aşamada da karşımıza işletmelerde çalışan insan faktörü çıkmaktadır. Çalışanların yeteneklerinin farkında olan, eğitim ve gelişimleri için fırsatlar sunabilen işletmeler, çalışanlarını en yüksek performansa ulaştırabilmektedirler. Bu çalışmanın amacı, satış elemanlarının yetenek yönetimi uygulamalarının, performanslarına etkisini incelemektir. Bu amaç kapsamında çeşitli sektörlerde satış alanında çalışan 332 katılımcıyla online anket uygulaması gerçekleştirilmiştir. Elde edilen verilerin analizinde SPSS ve AMOS paket programları kullanılmıştır. Analiz sonuçlarına göre yetenek yönetimi alt boyutlarının ve iş gören performansı ölçeğinin oldukça güvenilir olduğu, yetenek yönetimi alt boyutlarının orta düzeyde pozitif yönde performansı etkilediği, yetenek yönetimi ile performans arasında ise pozitif yönde kuvvetli bir ilişki olduğu tespit edilmiştir.
Sürdürülebilir havacılık için cinsiyet eşitliği: İstanbul’da kadın yöneticilerin bakış açısı
Authors: Güngör Habibe
Published: September 2023

Birleşmiş Milletler Genel Kurulu, 2030 sürdürülebilir kalkınmanın amaç ve hedeflerine ulaşmak için toplumsal cinsiyet eşitliğini vurgulamıştır. Havacılık, Türk ulusal ekonomisinde önde gelen bir sektörüdür ve bu nedenle, Türk emeğinin önemli bir kısmı bu sektörde istihdam edilmektedir. Kadınların yeterince temsil edilmediği havacılık sektöründe kadın liderliğinin güçlendirilmesi sürdürülebilirliğin temel unsurlarındandır. Dolaysıyla bu çalışmanın amacı, havacılık şirketlerinde yönetici olan kadınların deneyimlerini ve karşılaştıkları engelleri anlamak ve elde edilen sonuçlara göre öneriler sunmaktır. Bu çalışmada katılımcıların kariyer yolculuklarındaki temel zorlukları ve engelleri ortaya koymak için nitel araştırma yöntemlerinden biri olan fenomenoloji modeli kullanılmıştır. Havacılık şirketlerinde orta ve düzey yönetici olan 10 kadın havacılık yöneticisi araştırmanın örneklemini oluşturmaktadır. Katılımcılar ile yapılan görüşmeler sonucunda elde edilen verilerin çözümlenmesinde içerik analizi tekniği kullanılmıştır. Sonuçlar, havacılık sektörünü uzun vadeli kariyer yolu olarak seçen veya seçecek kadınların üstesinden gelmeleri gereken birkaç konu olduğunu ortaya koyuyor. Esnek olmayan çalışma programlarının aile sorumluluklarıyla çatışması ve erkek egemen kültür çalışma kapasitelerini etkileyen başlıca faktörler olarak belirlendi. Sonuçlar havacılık sektöründe toplumsal cinsiyet eşitliğinin uygulanması için politika ve düzenlemelerin getirilmesi gerektiğini belirten literatürle örtüşmektedir. Sosyo-kültürel bağlamda, havacılık sektöründe yönetici kadınlara daha fazla görünürlük kazandırmak ve daha fazla kadın rol modelinin sağlanması, toplumun sektöre erkek egemen bakış açısını değiştirecektir.
The Role of Endothelinergic and Nitroxidergic Reactions in Predicting the Functional Outcome in Patients with Ischemic Stroke of Different Severity
Authors: Tynterova A. M. , Moiseeva E. M. , Golubev A. M. , Shusharina N. N.
Published: September 2023

The aim of this study was to assess the value of nitric oxide (NO) and endothelin-1 (ET-1) serum concentrations as potential biomarkers for predicting the functional outcome in patients with acute ischemic stroke. 

Material and methods. A total of 37 patients diagnosed with ischemic stroke and admitted to a multidisciplinary vascular center were included in the study. The patients were divided into two groups based on the severity of neurological deficits as determined by the National Institutes of Health Stroke Scale (NIHSS): Group 1 consisted of 20 patients with NIHSS scores 15, and Group 2 consisted of 17 patients with NIHSS scores 15. The functional outcome was assessed using the NIHSS absolute values and the degree of disability measured by the Modified Rankin Scale (mRS) by comparing the values before and after baseline treatment. Lab evaluation included quantitative assessment of stable NO and ET-1 metabolites in patient’s serum at admission and on day 10 of hospital stay. The SPSS Statistics V23.0 for Windows software package, Python programming language, and Pandas and SciPy libraries were used for statistical data processing. 

Results. Group 1 patients demonstrated a statistically significant decrease in NIHSS (P=0.0013) and mRS (P0.0001) scores, which was indicative of a favorable functional outcome. Group 2 patients showed some recovery of only neurological deficit measured by NIHSS scale (P=0.0012), changes in degree of disability by mRS were statistically insignificant. On Day10 of hospital stay, both groups showed a clinically significant increase in ET-1 content, and slight change in NO concentration. NIHSS score demonstrated a significant negative correlation with baseline ET-1 concentrations: R=–0.82, P=0.00023 — in Group 1; R=–0.55, P=0.00075 — in Group 2. Modified RS scores showed negative correlation with NO (R=–0.50, P=0.00044) and ET-1 (R=–1.0, P=0.0074) concentrations in Group 1, and positive correlation with NO (R=0.55, P=0.0023) and ET-1 (R=0.33, P=0.04) concentrations in Group 2. 

Conclusion. Monitoring of NO and ET-1 serum concentrations provides valuable insights for personalized assessment of the anticipated functional outcome in patients with cerebral ischemia. Further research and the development of prognostic mathematical models are needed to validate the use of endothelial function markers as predictive indicators of patients' recovery potential during the acute phase of ischemic stroke.
Diagnóstico de la evaluación docente en una universidad pública
Authors: Barrera Rosado Carmen
Published: September 2023

El propósito de este trabajo es presentar un diagnóstico de la evaluación docente que se realiza una universidad pública del sureste de México. El estudio es descriptivo y la información es obtenida mediante la administración de un cuestionario diagnóstico de la evaluación docente.La información obtenida será analizada e interpretada para que los resultados se presenten de una forma clara que facilite la comprensión de la temática abordada; así como el impacto de los resultados en la toma de decisiones o acciones futuras sobre los procesos de evaluación docente.Palabras clave: Diagnóstico, Evaluación docente, Universidad pública.The purpose of this paper is to present an assessment of teacher evaluation that a public university in the southeast of Mexico is performed. The study is descriptive and information is obtained by administering a questionnaire diagnosis of teacher evaluation.The information gathered will be analyzed and interpreted the results to be presented in a clear way that facilitates understanding of the topics addressed, and the impact of the results in decision-making or future actions on the processes of teacher evaluation.Keywords: Diagnosis, Teaching evaluation, Public university.
La enseñanza en las aulas multigrado: una aproximación a las actividades escolares y los recursos didácticos desde la perspectiva del profesorado
Authors: Boix Tomàs Roser , Bustos Jiménez Antonio
Published: September 2023

Este artículo presenta los resultados obtenidos en una de las fases de investigación de un proyecto internacional centrado en la enseñanza de las escuelas rurales. La información que se expone está extraída de entrevistas realizadas a docentes con el objetivo de analizar y conocer la enseñanza multigrado, y también de seleccionar a docentes con los que posteriormente se realizasen observaciones participantes, atendiendo a indicadores de posible desarrollo de metodologías activas en sus aulas. El trabajo que aquí se muestra sintetiza los hallazgos más significativos obtenidos en parte del territorio español sobre la gestión de los recursos didácticos y las actividades escolares que estos docentes llevaban a cabo en sus grupos multigrado. De manera más concreta, los resultados apuntan al contexto como foco de atención educativa, la utilización y preponderancia de los recursos impresos y tecnológicos, la figura del alumno tutor en las relaciones escolares interedad o diferentes tipos de actividades llevadas a cabo en el aula multigrado. Las conclusiones del estudio en esta etapa ayudaron a conocer el tipo de didáctica multigrado que los docentes llevaban a la práctica en sus grupos-clase.Palabras clave: Didáctica multigrado, Escuela rural, Actividades escolares, Recursos didácticos, Metodología activa.This paper presents the results of one phase of an international research project focusing on teaching in rural schools. The information discussed is drawn from interviews with teachers during a period of study in which it had to be analysed, known and selected multigrade teaching, based on indicators of possible development of active methodologies to teachers, with whom participants then make comments. The work shown here summarizes the most significant conclusions from the Spanish territory on the management of teaching resources and school activities that these teachers carried out in multigrade groups. The results provide information on topics such as the context as a focus of educational attention, the use of print and technological resources, the figure tutor student on school mixed age relationship or different types of developed activities in the multigrade classroom. The findings at this stage helped to know the type of multi-grade teaching that teachers carry out in their class groups.Keywords: Multigrade teaching, Rural education, Educational activities, Teaching resources, Active teaching.
Políticas de formación docente inicial para educación rural en Argentina
Authors: Lorenzatti Maria del C. , Brumat Maria Rosa , Beinotti Gloria
Published: September 2023

En este artículo se presentan algunos puntos centrales de las políticas de formación docente inicial de Educación Rural en Argentina. Se trata de los primeros resultados de un estudio mayor que abarca a cuatro países del Mercosur. El objetivo de este trabajo es analizar los aspectos normativos de la formación docente y mostrar la complejidad que asume la práctica docente en espacios sociales rurales.Palabras clave: Formación docente, Educación rural, Políticas educativas.This article discusses some key points of the initial teacher training policies Rural Education in Argentina are presented. These are the first results of a larger study encompassing four Mercosur countries. The aim of this paper is to analyze the normative aspects of teacher training and show the complexity assumes the teaching practice in rural social spaces.Keywords: Teacher training, Rural education, Educational policies.
Development of speed-strength abilities of 11-12 year old rugby players using a set of special exercises
Authors: Pasko Vladlena , Nesen Olena , Tsos Anatolii , Pomeshchikova Irina , Filenko Ludmila , Tserkovna Olena , Dolgopolova Natalia
Published: September 2023

Purpose: to select and experimentally test the effectiveness of complexes of special exercises for the development of speed-strength abilities of rugby players at the stage of preliminary basic training.

Material of the study: the study involved 24 young athletes aged 11–12 years who trained at the stage of preliminary basic training.

Research methods: indicators of speed-strength abilities of 11-12 year old rugby players were determined using the following tests: 30 m run from a high start, standing long jump, triple jump, 30 m run with a ball, shuttle run (3x10 m), passing the ball in pairs.

Results: a different degree of correlation was established between the indicators of test exercises that were used to determine the speed-strength abilities of 11-12-year-old rugby players: between the results of tests of running 30 meters from a high start, standing long jump, a triple jump from a place and running to 30 meters with the ball, and between the 30 meters run with the ball and the shuttle run 3 x 10 meters - a significant relationship (r=0,712-0,817). Between the results of standing long jump, a shuttle run of 3 to 10 meters and the number of ball passes on the spot in pairs, there is a low degree of manifestation (r = 0,309-0,455). Between the indicators of other test exercises that were used in our study, a moderately pronounced relationship was established (r=0,499-0,674).

Conclusions: the effectiveness of the use of complexes of special exercises for the development of speed-strength abilities of rugby players at the stage of preliminary basic training has been proven. Significant differences between the test results of the control and experimental groups were established: 30 m run, standing long jump, triple jump, 30 m run with the ball, passing the ball in pairs.
Apropiación tecnológica, subjetividades y trivialización política: campaña presidencial colombiana en Twitter de 2018
Authors: Acevedo-Merlano Álvaro-Alfonso , Acosta-Valencia Gladys-Lucía , Maya-Franco Claudia-María , Crawford-Visbal Joseph-Livingston
Published: September 2023

En este artículo se analizaron los modos de apropiación tecnológica y las subjetividades que emergieron durante la campaña presidencial colombiana de 2018 en Twitter. Se capturaron los tuits de los cinco (5) principales candidatos de la primera vuelta a través de un web crawler, que dio como resultado 6.487 tuits capturados. Con estos resultados se realizó un análisis de contenido y posteriormente un proceso de etnografía virtual que arrojó categorías de enunciación de la campaña: acuerdos de paz, corrupción, castrochavismo y educación. Se seleccionaron siete (7) tuits con mayor número de interacciones, que sumaron 16 361 comentarios, de los cuales se analizó una muestra de 4.760. Algunos de los resultados versan en que los usuarios se apropiaron de la plataforma compartiendo memes, noticias falsas y hashtags para atacar candidatos, lo que sugiere subjetividades emergentes de trolls o bots en vez de ciudadanos digitales. Desde las conclusiones, planteamos que, en Twitter, la política colombiana fue trivializada y los debates estuvieron ausentes.