bluuebunny/crossref_metadata_2025 huggingface dataset:
Diversity and Community Structure of Dragonflies (Odonata) in Various Types of Habitat at Lakarsantri District, Surabaya, Indonesia
Authors: Susanto Muhamad Azmi Dwi , Firdhausi Nirmala Fitria , Bahri Saiful
Published: August 2023

Dragonflies are insects that are very dependent on the existence of freshwater ecosystems, However, the population of dragonflies in urban freshwater ecosystems is at risk due to a number of issues. Consequently, it is essential to carry out research and efforts to preserve dragonflies in urban areas. This study aims to provide information about the diversity and structure of dragonfly communities in various habitat types in the Lakarsantri, Surabaya. Data collection in this study was carried out in the habitat types of ponds, reservoir, river, and rice field in July to September 2021. The study results show there are 22 species from 4 families with a total of 827 individuals. Analysis of the Shannon-Wiener diversity index showed that the highest value of dragonfly diversity was found in a pond, with a value of H' = 2.40, and the location with the lowest value was a river, with a value of H' = 1.77. At four research locations that have different aquatic ecosystems, the community structure of dragonfly is also different. The composition of the dragonfly community structure at the reservoir location has similarities to a pond, and at a river location, it has similarities to a paddy field. Differences in abiotic factors consisting of light intensity, humidity, and temperature at each study location have a correlation with differences in dragonfly community structure. In addition, the composition of the vegetation at each location is also one of the factors causing differences in the structure of the dragonfly community.
Combining Moderate and High Resolution of Satellite Images for Characterizing Suitable Habitat for Vegetation and Wildlife
Authors: Razali Sheriza Mohd , Samdin Zaiton , Lion Marryanna
Published: August 2023

Combining different resolution of remote sensing satellites becomes a unique approach for vegetation and wildlife habitat assessment study. Remote sensing technology can reach land and water on the Earth's surface, and it can interpret signals from spectral responses. When these techniques are combined with Geographical Information Systems (GIS), land can be monitored in a variety of ways. Meanwhile, changes in land use led to changes in vegetation on the ground, with natural vegetation being removed from natural forests, leaving a degraded forest. This issue was not investigated for assessing habitat suitability for important plantations such as Eucalyptus plantation. Therefore, the study employed remote sensing and Geographical Information System (GIS) to model suitability of habitat to live and to survive in the Eucalyptus plantation. Normalized Difference Vegetation Index (NDVI) and Normalized Difference Water Index (NDWI) derived from a mathematical equation can demonstrate intensity of greenness of green vegetation in particular area and time, and availability of soil moisture, respectively, is very suitable to model the greenness of the area. WorldView-2 satellite image was pre-proceed, proceed, and classified to produce land use indicator in Sabah Softwoods Berhad plantation majoring Eucalyptus spp. tree planted in Tawau, Sabah. Sentinel and Landsat 8 image were used for vegetation and water stress indicator were downloaded from Land Viewer application. Net Primary Productivity (NPP) at monthly scale was also calculated and ranked the productivity for the suitability mapping. Climatic condition based on monthly precipitation and seasonality derived from ASEAN Specialized Meteorological Centre (ASMC) was employed for ranking its suitability value. In this study, natural forest and oil palm plantation is tested to developed suitability map for vegetation and wildlife habitat to live with. All indicators were ranked 10 to 40 presenting benefit and usefulness of the indicator to vegetation and wildlife in the study area. Then, final classification was made from accumulation of those indicators into 0 to 200 (Not suitable to Highly suitable). The results showed 59.9% of the area classified as moderately suitable, 36.9% highly suitable, 3.2% least suitable and no area was classified as not suitable. This type of study assisted forest managers and policymakers for better managing of their forests for better life of trees and wildlife under their management. The methodology adapted in the study is ecologically sounded and economically viable to be modified and complied in Sustainable Forest Management (SFM) in Malaysia and other tropical forest regions.
Isolation and Characterization of Rhizospheric Bacteria Associated with Canna Plant for Production of Maltooligosaccharide Amylase
Authors: Agustiani Rina Dwi , Oedjijono Oedjijono , Rahmani Nanik , Ekowati Nuraeni
Published: August 2023

The objectives of the study were to isolate amylolytic bacteria from the rhizosphere and plant tissue of Canna edulis Ker., as well as litter; to know oligosaccharide compounds produced from starch hydrolyzed by the bacterial enzymes, and to identify the amylolytic bacteria based on phenetic and 16S rRNA gene sequences. From the rhizosphere, Canna plant tissue, and litters obtained thirty-two amylolytic bacterial isolates. Eight isolates (TH6, TH7, T5, T10, D2, D3, A3, S1) produced high clear zone diameters ranging from 18-30 mm; especially an isolate T10, which was consistent in producing a total clear zone diameter of 20 mm. The hydrolysate of starch hydrolysed by the T10 amylase resulted in three oligosaccharide compounds maltotriose, maltotetraose, and maltopentose. The amylase activity of isolate T10 was optimal at a temperature of 40°C and pH at 0.801 U/mL. The isolate T10 was identified as a species member of Bacillus toyonensis based on phenotyphic characterization and 16S rDNA gene sequencing analysis with a similarity value of 99.93%
Molecular Identification of Several Morphologically Distinct Flowerhorn Fish (Family) Using Mitochondrial COI Gene Marker
Authors: Sari Dini Wahyu Kartika , Achmad Himawan , Rahman Hafit , Bimasuci Harya
Published: August 2023

Flowerhorn fish has been known as a breed of fish produced by artificial hybridization between several cichlid fish. Other ornamental cichlid fish generally known to be crossed to make flowerhorn variant includes Amphilophus citrinelus, Amphilophus labiatus, Vieja melanurus, and Amphilophus trimaculatus. Our study identified a variety of flowerhorn samples with distinct morphotypes, dubbed as Cencu (LH1CC), Kamfa (LH2KF), Thai Silk (LH3TS), Kirin (LH4KR), Parrot (LH5PR), and Vieja (LH6VJ) using mtDNA COI-based DNA barcoding. Molecular analysis and phylogenetics showed that all sample had 0% genetic divergence and conspecific with A. trimaculatus sequence. Hence, we concluded that despite having varied morphotypes, all flowerhorn samples were identified as A. trimaculatus and were a variation of flowerhorn from A. trimaculatus lineage. The findings should be used as a precaution as the fish is identified as an invasive species.
PHYTOCHEMICAL STUDY AND ANTIOXIDANT, ANTIBACTERIAL AND ANTIDIABETIC ACTIVITIES OF FLACOURTIA INDICA LEAVES EXTRACTS FROM THE TOGOLESE FLORA
Authors: OGOUBI AYEFOUNIN , EVENAMEDE KODJO SELOM , KPEGBA KAFUI , SIMALOU OUDJANIYOBI , AGBONON AMEGNONA
Published: August 2023

Objective: Faced with the devastating effect of diabetes, the search for new natural antidiabetic molecules is an exploratory avenue. Methods: In this study, the leaves of Flacourtia indica were collected from the Togolese flora, and their antioxidant activity was evaluated using DPPH and FRAP assays, following a phytochemical screening conducted through colorimetric and precipitation reactions. The content of total phenols was determined using Folin-Ciocalteu's reagent and flavonoids by aluminum trichloride. The antibacterial activity of the extracts was evaluated using the method of dilution in agar wells with Muller-Hinton® agar. Additionally, the extracts' antidiabetic effect was evaluated in rats made diabetic by alloxan at a dose of 120 mg/kg. b.w. Results: The results of our work showed the presence of flavonoids, tannins, anthocyanins, and saponins in the extracts. The best polyphenol and flavonoid contents were measured in the hydroethanolic extract and were 186.46±0.308 mg EqAG/g and 464.14±17.043 mgEqQ/g. ES respectively. The hydroethanolic extract has a higher antioxidant power with an IC50 = 110.22 µg/ml. The reducing powers of the ferric ions were 3706±12.124 and 3777±9.238 µmol/ml, respectively for the hydroethanolic and aqueous extracts. The extracts were active against Staphylococcus aureus and are bacteriostatic. The hydroethanolic extract of the leaves of Flacourtia indica significantly reduced (p = 0.0014) blood glucose levels in diabetic rats. Conclusion: This plant can therefore be a potential medicine in the treatment of diabetes.
PREVALENCE OF ASYMPTOMATIC MALARIA AND ANEMIA AMONG PRIMARY SCHOOL CHILDREN IN ENUGU STATE, NIGERIA
Authors: AYOGU EBERE EMILIA , ANOSIKE CHIBUEZE , AZUMARA STEPHEN IKECHUKWU , NNIA ANI DESMOND
Published: August 2023

Objective: The objective of the study was to determine the prevalence of asymptomatic malaria and anaemia among primary school children in Enugu State, Nigeria.
Methods: This research was a quantitative cross-sectional survey conducted among children in 8 primary schools in Nsukka, Enugu State, Nigeria. Asymptomatic children aged 5 to 13 were randomly selected and screened for malaria parasitemia and anaemia. The presence of malaria parasites in the blood sample was detected using the rapid diagnostic test (RDT) kit. At the same time, haemoglobin concentration was measured using a portable Mission® Plus Hemoglobin (Hb) Testing kit. The clinical status of the children was obtained from a self-administered questionnaire completed by their parents or guardians. Descriptive statistics and the Chi-square test were used for data analysis.
Results: The prevalence of asymptomatic malaria and anaemia was 24.1% and 45.8%, respectively. The school-age children with both asymptomatic malaria and anaemia were 13.7%. The prevalence of asymptomatic malaria was significantly associated with asymptomatic anaemia (p = 0.013). Sleeping under insecticide-treated nets was significantly associated with a lower prevalence of asymptomatic malaria (p = 0.024) and anaemia (p = 0.015).
Conclusion: The study revealed a high burden of asymptomatic malaria and anaemia among primary school children in Nsukka. This study, thus, underscores the need for robust implementation of malaria and anaemia screening, prevention, and treatment programmes in this population.
The Effects of Early Childhood Teachers’ Play Beliefs and Professional Support Environment on Their Play Support Practices
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lee Ja-Jung , Kim Kyung Sook
Published: August 2023

Objectives This study was conducted to examine the effects of early childhood teachers’ play beliefs and professional support environment on their play support practices. Methods The subjects of this study were 200 early childhood teachers working in daycare centers located in G city and J province. The play beliefs, professional support environment, and play support practices were evaluated directly by the early childhood teachers. The Pearson correlation analysis and regression analysis on the data collected were conducted by using SPSS WIN 29.0. Results First, there were significant differences in teachers’ play beliefs, professional support environment, and play support practices based on their background(age, childcare experience, academic background, working places). Second, the early childhood teachers' positive play beliefs had a significant positive correlation with their play support practices, but their negative play beliefs did a negative correlation with the play support practices. In addition, their professional support environment also had statistically significant positive correlation with play support practices. Third, early childhood teachers' professional support environment and positive play beliefs had significant effects on their play support practices. Fourth, the professional support environment had relatively greater effect on teachers’ play support practices than the positive play beliefs did. Conclusions This study provides more reliably understanding about effects of early childhood teachers' play beliefs and professional support environment on play support practices. And the results of this study suggest that we could develop early childhood teachers' play support practices by enhancing their play beliefs and professional support environment,
Children's Experiences in Augmented Reality (AR) Music Activities
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Ahn Jiyoung , Kim Geun hye
Published: August 2023

Objectives This study aims to examine children’s experiences in augmented reality(AR) music activities and the values in early childhood education through exploring five-year-old children’s responses by AR music with smart device apps. Methods A total of 20 five-year-old children and a teacher are participated in this study. The researcher observed the participating children’s music activities twice a week for three months in the kindergarten. Data collection included recorded videos of children’s music activities, filed note for observation, interviews with teacher. The following findings were drawn by analyzing recorded materials and inductively categorizing the contents of collected materials. Results First, children showed curiosity in the process of experiencing augmented reality (AR) music and smart devices, and experienced augmented reality (AR) music with characters and sounds. Second, it was found that children experienced music with various senses and perceived it aesthetically through AR music; that is, they were meeting AR while simultaneously feeling music with sight, hearing, and body. Third, children were expanding into another world of convergence through music, connecting augmented reality with reality. Conclusions These results were able to explore the meaning of the experience when the child meets AR music. This study is to put its value in that it can be used as basic data to present desirable direction of education to young children living in the digital age.
Effect of Major Selection Motivation and Major Satisfaction on College Life Adjustment and Dropout Intention under the COVID-19 Situation
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Shin Ae-Ri , Ha Myung-Ok , Shim Hyung-SoonC
Published: August 2023

Objectives This study was conducted to investigate the effect of freshman's major selection motivation and major satisfaction on college life adjustment and dropout intention in the difficult crisis situation of COVID-19. Methods Subject's general characteristics, major selection motivation, major satisfaction, college life adjustment, and dropout intention were investigated. The collected data were post-test using SPSS 22.0, Independent t-test, One-way ANOVA and Scheffe test, Pearson's correlation coefficient, was analyzed by multiple regression. Results The motivation for choosing a major, satisfaction with major, and adaptation to college life had a positive relationship with each other, and motivation for major choice, satisfaction with major, and adaptation to college life had a negative relationship with intention to drop out. Adaptation to college life had a significant positive effect on major choice motivation and major satisfaction, and dropout intention was significant with intrinsic motivation for major choice motivation, cognitive satisfaction with major satisfaction, subject satisfaction, environmental adaptation and career adjustment for college life adjustment. There was a talisman influence. Conclusions Therefore, when choosing a college major, students make their own choices in consideration of their aptitudes and aptitudes. After entering the chosen university and department, they are encouraged to improve their satisfaction with their major through credit management and self-development, and to improve their social status and adapt well to the university environment. It is thought that the intention to drop out halfway can be reduced if a systematic system is prepared to help and set up a career and employment related to the major after graduation.
Studying Mother Graduate Student’s Multiple Role Performance Experience: A Case Study of Physical Education Doctor Course Graduate Students
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Kim Sue-Yeon , Park Hyu-Kyoung , Won Young-Shin
Published: August 2023

Objectives This research analyzed the physical education mother graduate student’s multiple role performance experience that raise her child. Methods For this research, 5 participants with their experience of raising elementary school children at their doctor course were recruited, and performed the qualitative case study based on the in-depth interview. Results Mother graduate students’ experiences were represented by following three topics. First, it was identified that mother graduate students’ greatest concerns were matters related to their children (no trust-worthy person to care for their children, mother’s vacancy), and the main cause of their difficulties was insufficient time (situational contexts, insufficient support from people around them), and the factor reinforcing their difficulties was negative emotions (uncertain future, the identity conflict between ‘mom’ and ‘graduate student’, and fear of negative gaze from people around them). In addition. it was identified that mother graduate students’ survival strategies were greatly influenced by the support from people around them. Second, the experiences as PE (physical education) graduate students were categorized as “small success built with help and effort” Third, the meaning of ‘studying mother’ had a meaning encompassing both positive and negative aspects. This was interpreted in four aspects of ‘positive aspect considered by their children’. ‘positive aspect as parent (main care-giver)’, ‘part requiring the children’s understanding’, and ‘overcoming concerns about their children’, and especially, positive influence of studying mother on their children was identified in the children’s educational aspect. Conclusions Studying mother graduate students’ degree acquisition process can be understood as a challenge having more meaningful in that it is worth to achieve despite plentiful hardships, and it could find that mother graduate students were overcoming difficulties in finding their own efficient ways in the process of giving up what they could not handle while being helped from people around them, and accepting real situations.
The Relationship Between Types of Self-awareness and Educational Aspiration, Job Decision Level of General High-School Students: Analysing KCYPS Data
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Byun Jooyoung , Cho Eunhye
Published: August 2023

Objectives The purpose of this study is to categorize the self-awareness of Korean General high-school students’ and analyze whether there is a difference in educational aspiration and job decision level by type of self-awareness. Methods For this purpose, data from the sixth year of the Korean Children and Youth Panel Survey (KCYPS) 2010 were analyzed using SPSS 25.0 and Mplus 8.0. The number of samples used for the analysis is 1,366. Results First, the self-awareness types of 3rd grade general high-school students were divided into four types which are self-diffusion type, career identity laden type, search progressive type, and career-resilience laden type. Second, the educational aspiration of the self-diffusion type is significantly lower than that of search progressive type and of career identity laden type. Third, the level of job decision of each type of self-awareness showed a statistically significant difference. Specifically, the job decision level of career-resilience laden type is the highest, then that of career identity laden type is next, and that of search progressive type, that of self-diffusion type is the lowest. Conclusions Practical and academic proposals were derived based on the research results. At the practical level, ministries need to emphasize self-identity and self-esteem in the curriculum, and schools need customized support for each type of self-awareness. Students need to raise self-awareness and make efforts to develop self-directed career development. At the academic level, it was suggested that follow-up studies are needed on diversification of research subjects, multidimensional exploration of factors influencing educational aspiration, and illuminatation of self-awareness to improve career and job decision-making levels.
Exploration of the University Students’ Educational Needs for the Competencies Required for the Project Based Learning
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Yoon Heojeong , Bang Dami
Published: August 2023

Objectives The purpose of this study was to understand the university students’ educational needs for the competencies required for the project based learning in order to provide implications for the teaching strategy. Methods To this end, a project performance competency test was administered to 120 university students in the metropolitan area. The Importance, performance, Borich index, and IPA matrix analysis were performed on the 49 items of the five competencies: creative problem solving, inquiry/research and analysis, project management, collaboration, presentation and report writing. Results The results were as follows. It was found that the performance of all items was lower than their importance. A total of 11 items were classified as ‘Concentrate here’ area, with high importance but low performance. These included 2 items in creative problem-solving competencies, 2 items in inquiry/research and analysis competencies, 1 item in project management competencies, and 6 items in presentation and report writing competencies which showed the highest number among the competencies. There was no item of ‘Concentrate here’ area in the collaboration competencies. 11 items were ranked within the 1st to 14th positions based on the educational needs according to the Borich index. 3 items of the top rankings were excluded from ‘Concentrate here’ area, 2 items falling into the ‘low-priority’ area and 1 item into the ‘Keep up the good work’ area. Conclusions Based on the results, pedagogical implications were derived for designing and implementing project based learning for university students, focusing on field handling ability, innovation, thinking skills, crisis management and leadership.
Bir Yaşlı Popülasyonunda Periodontal Durumun Fiziksel Aktivite, Beslenme ve Yaşam Kalitesi ile İlişkisi
Authors: UZAR Erensu , ERTAŞ Kübra , KOŞKAN Özgür , YETKİN AY Prof. Dr. Zuhal
Published: August 2023

Yaşlı bireylerdeki dental/periodontal hastalıkların oluşma ve ilerleme durumunu etkileyen faktörlerin belirlenmesi ile kontrol altına alınması, yaşlı bireylerin yaşam kalitesinin artırılmasında önemli bir etki oluşturacaktır. Bu çalışmanın amacı bir yaşlı popülasyonunda fiziksel aktivite, beslenme, ağız sağlığına bağlı yaşam kalitesi ile periodontal sağlık/hastalık durumu arasındaki ilişkiyi araştırmaktır.
Çalışmaya 2021-2022 yılları arasında kliniğimize başvuran yaşları 65-74 arasında değişen 33 gönüllü birey katılmıştır. Katılımcıların klinik periodontal parametre kayıtları, sosyodemografik, antropometrik özellikleri kaydedilmiş ve Ağız Sağlığı Etki Profili Ölçeği (OHIP-14), Ağız Ve Diş Sağlığı İle İlgili Yaşam Kalitesi-Birleşik Krallık Ölçeği (OHRQoL-UK), Yaşlı Ağız Sağlığı Tanılama İndeksi (GOHAI), Yaşlılar İçin Fiziksel Aktivite Ölçeği (PASE), Mini Nütrisyonel Değerlendirme Testi (MNA) indeksleri, anket formları kullanılarak elde edilmiştir. Varyansların normal dağılımı ve homojenliği Shapiro-Wilk ve Levene testleri, gruplar arası karşılaştırmalar Mann-Whitney U testi, korelasyonlar ise Spearman korelasyon testi ile analiz edilmiştir (p<0,05).
Çalışma popülasyonunda PASE skorları erkeklerde kadınlardan yüksek bulunmuştur (p<0,05). Periodontal durum test skorlarında anlamlı bir farklılık oluşturmamıştır (p>0,05). Aylık gelir yükseldikçe PASE skorları yükselmiş (p<0,000), sistemik hastalık varlığında ve diş kaybı arttıkça OHQoL-UK skorları artmış (p=0,025, p=0,026), VKİ alt grupları arasında OHIP-14 skorları anlamlı farklılık göstermiştir (p=0,002).
Periodontal durum, incelenen geriatrik popülasyonda yaşam stili ve kalitesiyle alakalı test skorları üzerinde anlamlı bir etki göstermemiştir. COVID-19 döneminde yürütülmüş bu çalışmanın bulguları daha geniş yaşlı popülasyonlarında farklılık gösterebilir.
Hidroksizinin Tablet Formülasyonunda Analizi için Yeni Bir RP-HPLC Tekniği
Authors: NANE İkbal Demet
Published: August 2023

Alerji ilaçları, alerjik reaksiyonları hafifletmek ve semptomları kontrol altına almak için kullanılan farmasötik ürünlerdir. Günümüzde alerji ilaçlarının önemi, artan alerjik hastalık prevalansı ve semptomların etkili bir şekilde yönetilmesinin gerekliliği nedeniyle giderek artmaktadır. Bu araştırmada alerjik bir ilaç olan hidroksizinin tayin edilmesinde yeni bir metot önerilmiştir. Bu araştırmanın amacı, tablet formundaki piperazin türevi ilaç etken maddesi hidroksizini analiz etmek için bir RP-HPLC metodu geliştirmek ve doğrulamaktır. Optimum sıvı kromatografik ayırma koşullarını belirlemek için mobil faz pH'ı ile alıkonma süresi arasındaki korelasyona dayanan sistematik bir yaklaşım kullanılmıştır. Hidroksizinin tayini, Xbridge C18 kolonunda (3 um, 150 x 4,6 mm, I.D.), pH 6'ya ayarlanmış %45 (v/v) asetonitril içeren asetonitril-su ikili karışımında sağlanmıştır. Çalışma 0,8 mL/dakika akış hızında, 37 °C kolon sıcaklığı ve 230 nm dalga boyunda gerçekleştirilmiştir.
Omza Yönelik Ölçek Geliştirme Çalışmasında Kapsam Geçerliği
Authors: KOÇAK Hüsamettin , DEMİRDEL Ertuğrul
Published: August 2023

Araştırmalarda ölçme faaliyeti için hasta bildirimli veya klinisyen tarafından uygulanan ölçekler çokça tercih edilmektedir. Hastalığın, hastanın yaşamı üzerine gerçek etkisini ve kişiden kişiye değişiklik gösteren hastalık deneyimini anlamanın karmaşık olması nedeniyle hasta bildirimli ölçekler literatürde çokça tercih edilmektedir. Türkiye’de omuz hastalıkları için kullanılan ölçeklerin tamamı uyarlama ölçeklerdir. Türk toplumuna özgü geliştirmeyi planladığımız ölçek geliştirme çalışması kapsamında yeni bir ölçek için kapsam belirleme, uzman görüşü alma ve kapsam geçerliğinin sağlanması aşamaları gerçekleştirildi. Literatür taraması, alan uzmanlarının görüşleri ve hasta bildirimleri dikkate alınarak geliştirilmek istenen ölçeğin kapsamı omuz fonksiyonelliğinin değerlendirilmesi olarak belirlendi. Omuz hastalarının ifade ettikleri semptomlar, literatürdeki hasta ifadelerine yönelik yer alan makaleler, literatürde yer alan omza yönelik geliştirilmiş ölçekler ve klinisyen görüşleri dikkate alınarak 34 maddelik madde havuzu oluşturuldu. Madde havuzunun kapsam geçerliği ve dil geçerliğini test etmek için 8 uzmandan oluşan uzman kurulu oluşturuldu. Madde havuzunda yer alan maddeler için Google Formlar platformu üzerinden dijital olarak iki kez uzman görüşü alındı. Birinci uzman görüşü sonrası 5 maddenin kapsam geçerlik oranı (KGO) 0,778 ve üzerindeydi. Birinci uzman görüşleri ve maddelerin KGO doğrultusunda madde havuzu 21 madde olarak yenilendi. Yenilenen madde havuzu, tekrar değerlendirilmesi için ikinci kez aynı uzmanlara Google Formlar platformu üzerinden gönderildi. Uzman görüşleri sonrası tekrar maddelerin KGO hesaplandı. İkinci uzman görüşü sonrası 20 maddenin KGO’nun 0,778 ve üzeri bir değerde olduğu görüldü. 0,778 değeri altında bir KGO’na sahip 1 madde ölçekten çıkarıldı. Bu değerlere göre ölçeğin toplam kapsam geçerlik ölçütü (KGÖ) 0,984375 olarak hesaplandı ve 20 maddeden oluşan taslak ölçek son halini aldı. KGO, KGÖ kavramları örnek çalışmamız üzerinde anlatılarak ölçek geliştirme sürecinde nasıl kullanılacağı basit bir dille ifade edildi. Çalışmalarda KGÖ’nün farklı değerler referans alınarak kullanılması analiz edildi.
IMPLEMENTATION OF THE FINITE ELEMENT METHOD IN SOLIDWORKS TO OPTIMIZE THE FRONT CAST WHEEL DESIGN FOR MOTORCYCLES
Authors: Kurniawan Rizki Nur Afami , Romahadi Dedik , Fitri Muhamad , Karim Md Radwanul
Published: August 2023

Cast wheel rims often experience damage that causes damage to the lip of the rim, or the spokes rupture if it supports the excessive load. The safety aspect is very important to be considered in the automotive industry because it involves the lives of passengers. Structural optimization of various vehicle components has shown that component weight strongly influences vehicle performance. Based on these problems, this research aims to design a lightweight cast wheel design model that can withstand a load of 535 N. So, it is necessary to make an analysis using a comparison of design models and material variations and static simulations using Solidworks 2018 software. The results sought are von mises, displacement, strain, a factor of safety, and produce a lightweight design. The simulation results on the three models are still safe in holding a load of 535 N because the value of the factor of safety is not less than 1. The results of the design mass with material variations are lighter than the original wheels.
The impact of personality on satisfaction with synchronous online academic learning
Authors: Patitsa Christina D. , Sahinidis Alexandros G. , Tsaknis Panagiotis A. , Giannakouli Venetia
Published: August 2023

The purpose of this study is to identify the role personality plays in students’ satisfaction with synchronous online academic learning (SOAL), especially during the COVID-19 pandemic.
Increased sustainability initiatives among the largest Canadian firms: Routine, strategic or board oversight
Authors: Singh Ranjita M.
Published: August 2023

Using a multi-theory framework, we analyze why there is a difference in reporting between firms in their number of sustainability indicators. Firms not only need to earn profits but also contribute to the well-being of society and the environment. A firm’s corporate social responsibility (CSR) activities as visible from its sustainability reporting disclosure help it in various ways such as gaining greater legitimacy among its stakeholders, improving its competitive advantage (Grant et al., 2015), attracting talent (Turban & Greening, 1996), reducing risk (Godfrey et al., 2009), etc. Formal sustainability reporting has been available for over two decades and is no longer considered novel. However, the diversity and details in their reporting differ among these firms
Institutional investors and corporate governance: A study of listed companies in Greece
Authors: Tasios Stergios
Published: August 2023

This study aims to investigate the impact of corporate governance on institutional ownership in a small European capital market, which is characterized by family ownership, underrepresentation of women on the boards and weak corporate governance structures.
The virtual annual general meeting in Germany: A theoretical and empirical analysis of design possibilities and future prospects
Authors: Ulrich Patrick , Zettl Ramona
Published: August 2023

JOURNAL MENU THE VIRTUAL ANNUAL GENERAL MEETING IN GERMANY: A THEORETICAL AND EMPIRICAL ANALYSIS OF DESIGN POSSIBILITIES AND FUTURE PROSPECTS DOWNLOAD THIS ARTICLE Patrick Ulrich ORCID logo, Ramona Zettl https://doi.org/10.22495/nosrcgp22 Creative Commons License This work is licensed under a Creative Commons Attribution 4.0 International License. Abstact The following study shows theoretical and empirical evidence regarding the use of virtual annual general meetings in Germany. This has become commonplace during COVID-19. At the moment, there is an ongoing discussion on the chances and disadvantages of virtual annual shareholders’ meeting (AGM) in Germany
Enhancing corporate governance: A conceptual approach to artificial intelligence usage
Authors: Correia Anacleto , Água Pedro B.
Published: August 2023

In this exploratory study, we examine the intersection of corporate governance (CG) and artificial intelligence (AI), addressing the essential question: how can AI be utilized to improve ethical and transparent decision-making in the corporate endeavour? Using current research on organizational governance, AI ethics, and data science, our study examines the potential of AI to augment conventional governance mechanisms, as well as the ethical dilemmas and challenges it may present. We propose a conceptual framework based on the principles of separation of ownership and control while considering data ethics, which will be supported and validated in the future by an empirical study.
Metabolic Engineering of Microbial Cell Factories For Sustainable Biomanufacturing
Authors: Ademikanra Adekunle Fiyin , Olayiwola Azeemat Olanrewaju , Dalhatu Abubakar , Oyewole Olutayo Micheal , Oke Grace Oluwasikemi
Published: August 2023

Metabolic engineering is essential for the development of microbial cell
factories to produce biomolecules from low-value renewable substrates.
This role helps advance the development of ecologically responsible and
commercially robust chemical industries, including biofuels and
high-value compounds like medicines. The ability of microbial cell
factories to generate a wide variety of substances sustainably,
therefore satisfying modern commodity needs, has piqued the scientific
community’s attention. The goal of metabolic engineering is to convert
different microorganisms into efficient cell factories to produce
desired products, and it has been used for decades to develop novel
metabolic pathways and alter pre-existing ones with the help of system
biology, synthetic biology, and evolutionary engineering.
A comparative study on 3E (energy, exergy and economic) analysis of solar PV operated dome-shaped solar stills
Authors: Palaniappan Ragupathy , Murugesan Vijayakumar , Govindasamy Kumaresan , Manirao Lakshmi
Published: August 2023

The present investigation centers on the empirical examination of a solar photo-voltaic system that is integrated with a dome-shaped solar still in order to facili-tate the process of desalination. The objective is to increase the production of freshwater through the utilization of saline water at elevated temperatures. The assessment of the dome-shaped solar still system's efficacy is conducted through the examination of various parameters, including water yield, energy, exergy, concentrator performance, and economic feasibility. The study's results demon-strate that the dome-shaped solar still system's water yield, energy, and exergy were evaluated under varying inlet temperatures and mass flow rates. The study recorded the water yield, energy, and exergy at 4.73, 4.27, and 4.91 L per m?, re-spectively, with respect to the ambient inlet temperature. The water yield was ob-served to range from 6.9-7.7 L per m2 under different input temperatures and air mass-flow rates. The dome-shaped solar still system's energy and exergy efficien-cy were evaluated, indicating encouraging results for various inlet air tempera-tures. Furthermore, the economic evaluation revealed that the rate of freshwater production was cost-effective in comparison to conventional solar stills. In sum-mary, this research offers empirical proof of the efficacy of a solar photovoltaic -powered dome-shaped solar still for the purpose of desalination. It emphasizes enhancements in the output of fresh water, energy and exergy efficiency, and the economic viability of this technology.
Nano- and micro-polar magnetohydrodynamic fluid-flow and heat transfer in inclined channel
Authors: Stamenkovic Zivojin , Kocic Milos , Bogdanovic-Jovanovic Jasmina , Petrovic Jelena
Published: August 2023

Magnetohydrodynamic (MHD) fluid flows attract a lot of attention in the
extrusion of polymers, in the theory of nanofluids, as well as in the
consideration of biological fluids. The considered problem in the paper is
the flow and heat transfer of nano and micropolar fluid in inclined channel.
Fluid flow is steady, while nano and micropolar fluids are incompressible,
immiscible, and electrically conductive. The upper and lower channel plates
are electrically insulated and maintained at constant and different
temperatures. External applied magnetic field is perpendicular to the fluid
flow and considered problem is in induction-less approximation. The
equations of the considered problem are reduced to ordinary differential
equations, which are analytically solved in closed form. The influence of
characteristics parameters of nano and micropolar fluids on velocity,
micro-rotation and temperature fields are graphically shown and discussed.
The general conclusions given through the analysis of graphs can be used for
better understanding of the flow and heat transfer of nano and micropolar
fluid, which have a great practical application. Fluids with nanoparticles
innovated the modern era, due to their comprehensive applications in
nanotechnology and manufacturing processes, while the theory of micropolar
fluids explains the flow of biological fluids and various types of liquid
metals and crystals.
Mathematical and CFD methods for prediction of thermal pollution caused by thermal power plant
Authors: Jovcevski Milica , Lakovic Mirjana , Iliev Iliya , Banjac Milos , Stojkovski Filip , Mancic Marko
Published: August 2023

Wastewaters from power plants is a major concern for environmental protection. After the water is used in thermal power plant, the heated effluent is again discharged in the same water body from where it is taken. This not only disturbs the aquatic life but also affects the balance of the ecosystem. This paper presents the background of the thermal pollution, modelling approach and analysis methods for prediction of thermal pollution. A 2-D model of Sava River is discussed. The thermal power plant Nikola Tesla B was considered. Analysis of thermal discharge into the Sava River for the twelve-year period has been carried out. It was done a comparative analysis of the results obtained using mathematical (Electricity of France ? EDF) method and numerical analysis using the CFD software package ANSYS FLUENT. A comparison of these two methods was made in order to show that it is possible to predict thermal pollution precisely and that it is possible to apply these methods in the design of industrial plants and not only in large thermal power plants. Finally, the results showed the matching of the obtained values at greater distances from the water outlet of the thermal power plant.
Indoor temperatures affected by phase-change materials
Authors: Vucicevic Biljana , Mrdja Dragoslav , Turanjanin Valentina , Skobalj Predrag , Mladenovic Milica
Published: August 2023

Energy costs are rapidly rising around the world and it is important to find a way to reduce energy consumption. Energy consumption in buildings can account for up to 40% of total energy consumption in developed European countries due to an increase in living space per person, an increase in the need for air conditioning, an increase in the number of appliances used in households, and other factors. Due to the increasingly frequent high temperatures during the summer and the increase in electricity consumption, it is very important to find a way to decrease indoor temperatures in urban residential buildings without using more energy, given the severe energy crisis that has engulfed Europe and the high percentage of energy and electricity consumption in the residential sector. Installation of phase changeable materials is one method for improving the thermal envelope of a building by increasing the thermal capacity of the envelope and thus affecting the reduction of indoor temperature oscillations and, consequently, reduction of summer electricity consumption. In this study, the TRNSYS software package was used to simulate and compare the indoor air temperature in typical detached houses built in period 1946 and 1970 in the Belgrade area, for both, the case without and the case with installed phase change (PCM). It was shown that incorporating a PCM with a melting temperature of 25?C into the inter-floor construction of the house could significantly improve comfort conditions by reduce indoor temperature fluctuations during the warm period without consuming additional energy. When the temperature outside is around 30?C, the maximum air temperature in the house drops by about 2?C.
The conservation status and distribution of the mammals of the Arabian Peninsula
Authors: Mallon David P. , Hilton-Taylor Craig , Amori Giovanni , Baldwin Robert , Bradshaw Peter L. , Budd Kevin
Published: August 2023

The assessment region - the Arabian Peninsula - contains a wide diversity of sand and gravel deserts, mountains, coastal and offshore habitats and sparse wetlands. It also contains a diverse mammal fauna which comprises a mix of Arabian endemics, species with affinities to the Horn of Africa and Saharo-Sindian, Iranian-Central Asian, and Mediterranean elements. There are 166 terrestrial and 23 marine species whose occurrence in the region is confirmed, giving an overall total of 189 confirmed species. The status of the terrestrial species was assessed using the IUCN Red List Categories and Criteria and application of the IUCN Regional Guidelines. The distribution and status of each marine mammal species was reviewed and updated.
Impacto de la tecnología en la generación de la industria 4.0 en las pymes: estudio diagnóstico en empresas de la Ciudad de Puebla
Authors: López Nieto Sergio Raúl
Published: August 2023

La creciente tendencia en innovación tecnológica, la implementación de nuevos modelos de manufactura y la generación de técnicas de producción eficientes han provocado que se incluya en el siglo XXI el término industria 4.0, aspecto clave en las pymes mexicanas, las cuales representan el 98 % de unidades económicas. En esta investigación, por tanto, se analizó la influencia de la tecnología —específicamente del internet de las cosas, la inteligencia artificial y los gemelos digitales— en las pymes establecidas en el municipio de Puebla (México) con el objetivo de determinar el alcance que estos elementos tienen en los rubros de competitividad e implementación. Para ello, se utilizó un diseño de investigación no experimental transversal, ya que ninguna de las variables se manipuló y se midieron en un único momento.

El estudio tuvo un nivel correlacional que asoció las variables industria 4.0 y tecnología, y tuvo un carácter explicativo porque presentó un entendimiento sobre el fenómeno examinado. Dentro de los principales hallazgos se detectó que la tecnología tiene una influencia relevante en la generación de la industria 4.0, en específico en los aspectos de las condiciones operativas, que comprenden infraestructura tecnológica y aplicación e implementación de tecnologías inteligentes. En cambio, las técnicas avanzadas de producción tienen limitada influencia en el mencionado concepto, pues solo se implementan en los procesos de transformación de insumos en productos terminados.
Information system for forecasting sales of building materials
Authors:   Lviv Polytechnic National University, Semkiv Mykhailo , Chyrun Lyubomyr ,   Ivan Franko National University of Lviv, Bublyk Myroslava ,   Lviv Polytechnic National University, Shevchenko Maryna ,   Osnabrück University, Chyrun Sofia ,   Lviv Polytechnic National University
Published: August 2023

The work purpose is information system design and development. The study object is sales forecasting system process for building materials assortment. The study subject is forecasting sales system development methods and means for building materials assortment. the process of the system of forecasting sales of the range of construction materials. In accordance with the results and calculations given in the qualification work, namely: analysis of analogue programs and information about the subject area, system analysis of the object and the choice of technological means of development, the general structure of a typical system for forecasting sales of an assortment of building materials on an online trading platform based on use has been developed neural network.
Machine learning methods for control of non-playable characters behaviour in multiplayer RPG
Authors:   Lviv Polytechnic National University, Budnyk Roman , Yakovyna Vitaliy ,   Lviv Polytechnic National University
Published: August 2023

This article covers the problem of developing a control system for non-player characters in a multiplayer RPG. Commercial projects in the field of videogames and RPG (Role-Playing Game) projects in particular seldom use machine learning models for the implementation of character behaviour. The most common approach is to use primitive preprogrammed rules, or to implement a finite state machine. Such approaches ruin the immersion of playing with real creatures, since various predefined rules make the characters predictable. A good game AI is supposed to give the player an impression of interacting with real characters, that make various decisions, sometimes unpredictable. To achieve this goal, this article covers an approach with using various machine learning models in conjunction with a traditional finite state machine. A videogame developed earlier is used as the basis for problem solution. The article conducts an analysis of the existing works in the field of videogame AI. Next, the implementation of control system is described. This system utilizes a couple selected and successfully trained machine learning models. A multitude of models were tested, eventually a decision tree model and a neural network were selected, since they yielded the best results. The process of development and implementation of a control system involving machine learning models is then described. The approaches of teaching such models are described, and finally the achieved results are analyzed. To gauge the results, different models were compared against each other in test battles. The decision tree model showed results slightly better than the traditional finite state machine. Meanwhile, the neural network performed significantly better, beating other models far more often. Achieved results can be developed further, utilizing more complex models and improving training methods, which will result in even more sophisticated characters. Presence of such characters in the game will qualitatively improve the gameplay. Obtained system was integrated into the videogame, that may potentially become a commercial product.
Doctor’s voice assistant application prototype
Authors:   Uzhhorod National University, Kish Yurii , Pasichnyk Serhii ,   Lviv Polytechnic National University, Kunanets Natalia ,   Lviv Polytechnic National University, Kut Vasilij ,   Uzhhorod National University
Published: August 2023

This research examines the main approaches to visualization and modeling of key processes in the creation and testing of software in the domain of telemedicine, namely, such an application as a voice assistant to a doctor. Emphasis is placed on the use of UML diagrams at various stages of the software development life cycle, including requirements analysis, design, description of basic functionality, documentation, testing, etc. With the help of modeling, the answer not only to the questions “what does the system do” and “what does the system consist of” was demonstrated, but also to “how and how efficiently the system works” – in this case, a prototype of a doctor’s voice assistant application. Approaches to using effective frontend technology for the application are analyzed.