bluuebunny/crossref_metadata_2025 huggingface dataset:
Endüstri 4.0’a Doğru Türkiye’de Televizyon Yayıncılığı: Medya Profesyonellerinin Görüşleri
Authors: ERSİN Nimet
Published: December 2023

Endüstri 4.0 bütün sektörlerde üretim biçimini değiştirip dönüştürmekte, televizyon yayıncılığında da yakın zamanda büyük değişimler beklenmektedir. Yapay zekâ ve robotik sistemler, sanal gerçeklik uygulamaları, büyük veri, nesnelerin interneti, bulut bilişim gibi Endüstri 4.0 bileşenlerinin televizyon yayıncılığında otomasyonu sağlayacağı, yayın içeriklerinin çeşitlenip artacağı ancak diğer yandan istihdam sorununun ortaya çıkacağı öngörülmektedir. Araştırmanın amacı, televizyon çalışanlarının günümüz televizyon yayıncılığı hakkındaki düşüncelerini, Endüstri 4.0’a doğru yeni bir dünyanın geleceğine işaret eden yeni durumda televizyon yayıncılığının alacağı biçime ilişkin görüşlerini ve yayında otomasyonun istihdam endişesi yaratıp yaratmadığını ortaya koymaktır. Bu amaçla nitel araştırma tekniklerinden derinlemesine görüşme yoluyla veri elde edilmiştir. Görüşme için amaçlı örneklem yöntemiyle, yaptıkları işin niteliği Endüstri 4.0’daki gelişmelerden etkilenebilecek televizyon yayıncılığının farklı alanlarından 8 medya profesyoneli seçilmiştir. Görüşmelerde yarı yapılandırılmış açık uçlu soruların yanı sıra katılımcıların uzmanlık alanına göre konunun farklı boyutlarına yönelik detaylı sorular da yöneltilmiştir. Bulgulara göre televizyon çalışanları Türkiye’deki günümüz televizyon yayıncılığını teknik olarak başarılı bulmakta ancak içerik yönünden yetersiz ve niteliksiz olarak değerlendirmektedir. Katılımcılar medyanın yeni teknolojilere çabuk uyum sağladığını düşünmekte, Endüstri 4.0’da bazı iş kollarının ortadan kalkacağını ancak yeni uzmanlıkların ortaya çıkacağını belirtmektedir. Bulgular, katılımcıların çoğunun Endüstri 4.0’a girdiğimiz süreçte yakın zamanda televizyonun bugünkü biçiminden farklı olacağını, gelecekte de var olmaya devam edeceğine inandığını göstermektedir.
Akademide Cinsiyetlendirilmiş Bakım Emeğinin Etkileri ve İş-Yaşam Dengesi
Authors: ÖZATEŞLER ÜLKÜCAN Gül , ÇELİK Şebnem , YURTTAŞEN Duygu
Published: December 2023

Bu çalışma, kadın ve erkek akademisyenlerin özel hayat ve akademi arasındaki dengeyi ne şekilde kurmaya çalıştıklarını, evliliğe, ebeveynliğe, ev içi emeğe yaklaşımlarını ve pratiklerini analiz etmektedir. Anlam ve deneyim analizlerini mümkün kılmayı hedefleyen nitel araştırma tekniği ile var olan literatür temel alınarak oluşturulan yarı yapılandırılmış görüşme soruları üzerinden bireylerin akademide konumlanış biçimlerini ve koşullarını etkileyen, cinsiyet farklılıkları, iş ve aile yaşamlarını kapsayan öznel deneyimlerine ulaşılmaya çalışılmıştır. Bu amaçla 18 kadın ve 18 erkek akademisyenle görüşme yapılmıştır. Yapılan görüşmeler tematik analiz yöntemiyle ilgili literatürle bağ kurularak anlamlı, tekrarlayan ve bütünlüklü kodları içeren deneyim ve anlam dünyalarını sunma doğrultusunda analiz edilmiştir. Bulgulara göre başat iki temadan ilki akademik kariyerin aile ve yaşam kararlarını nasıl etkilediği; ikincisi ise aile ve yaşam kararlarının akademik kariyere nasıl yansıdığı olarak ortaya konmuştur. Bulgular, aile kurma ve akademik kariyer arasında kalma biçimlerine, evlilik ve çocuk yapmanın ötelenmesi ile bakım emeğinin cinsiyetlendirilişine dair sonuçlar içermektedir. Ayrıca akademisyenlerin akademik hayatlarının, kariyer kararlarının ve bunlarla baş etme biçimlerinin cinsiyetlendirilmiş bakım emeğinden nasıl etkilendiğine dair değerlendirmeler sunulmaktadır. Böylelikle Türkiye'de bakım emeğinin kadın ve erkek akademisyenlerin deneyimlerine etkisini ortaya koyarak alandaki literatüre ve sosyal politika yaklaşımlarına katkı sağlamak hedeflenmektedir.
MacDonald Silahsızlanma Tasarısı’nın (1933) Türk İngiliz İlişkilerine Etkisi: Türkiye’nin Avrupalılığı ve Boğazlar Meselesi
Authors: SARIALİOĞLU İrşat
Published: December 2023

İngiltere’nin 1933 yılında Cenevre Silahsızlanma Konferansı’na sunduğu ve dönemin Başbakanı James Ramsay MacDonald’ın adıyla anılan tasarı, iki savaş arası dönemde ortaya çıkan önemli silahsızlanma projelerinden biridir. Bu çalışmanın amacı MacDonald tasarısının Türk İngiliz ilişkilerine olan etkilerini tespit etmek ve tarihsel çerçeve içerisinde anlamlandırmaktır. Çalışma içerisinde birincil kaynaklar üzerinden yapılan araştırmalar neticesinde MacDonald projesinin Türk-İngiliz ilişkilerinde önemli sonuçlar ortaya çıkardığı tespit edilmiştir. Bunlardan ilki projenin ilanının hemen ardından yakınlaşma sürecindeki Türk-İngiliz ilişkilerinin Türkiye’nin Avrupalılığı ve uluslararası prestiji çerçevesinde diplomatik bir krize sürüklenmesidir. İkincisi ve daha da önemlisi ise projenin Boğazlar meselesini tekrardan Türk-İngiliz ilişkilerinin merkezine taşımasıdır. Ayrıca çalışmanın tespitlerinden biri de Türkiye’nin Cenevre Silahsızlanma Toplantısı’nda Lozan Boğazlar Sözleşmesi’ne yönelik ilk değişiklik talebini, MacDonald projesi kapsamında ve projenin ortaya çıkardığı bazı imkân ve güvenlik endişelerine atıfla ortaya koyduğudur. Çalışma içerisinde bu sonuçları ortaya çıkaran süreç ve argümanlar, proje metninin yanı sıra Türk ve İngiliz arşiv belgeleri çerçevesinde analiz edilmiştir. Çalışmada arşiv belgelerinin yanı sıra dönemin basınından ve ilgili literatürden yararlanılmıştır.
SYNTHESIS OF POLYMER ELECTROLYTE MEMBRANES BASED ON IONIC LIQUID DOPED SPEEK
Authors: KORKMAZ Şeyda , YILMAZOĞLU Mesut
Published: December 2023

The sustainable and environmentally benign energy demand of the world has been increasing. Among the various options, proton exchange membrane fuel cell is an attractive choice for energy supply due to its high efficiency and application conditions without waste. In this research, triazole-based ionic liquid doped sulfonated polyether ether ketone (SPEEK) composite membranes were presented for proton exchange membrane fuel cell (PEMFC) applications. Composite membranes were prepared by incorporating 1,2,3-triazole-based ionic liquids (TIL 1-2-3) into poly(ether ether ketone) (PEEK) matrices. The mechanical, structural, and thermal properties of both composite membranes and the triazole-based ionic liquids were thoroughly characterized using dynamic mechanical analysis (DMA), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The performance and viability of composites for PEMFC applications that involve elevated temperatures were conducted by proton conductivity test across a broad range of temperatures (30-180 oC). High-temperature proton conductivity was measured as 1.73x10-2 S/cm for SPEEK/TIL-3(1.0). According to the proton conductivity test results, it was concluded that the composite membranes may exhibit improved performance in PEMFC applications due to increased proton conductivity values.
Synthesis, Antibacterial Activity and Molecular Modelling of Benzyl Acetate Derivatives
Authors: UMAR Bilal , HASSAN Yusuf , AHMED Abdulhamid , SARI Suat , SIWE-NOUNDOU Xavier
Published: December 2023

Benzyl alcohol derivatives are known for their antibacterial efficacy. In this work five known benzyl acetate derivatives were synthesized by the acetylation of their corresponding benzyl alcohol derivatives and their structures confirmed using 1H, 13C NMR and FTIR spectroscopic techniques. The synthesized compounds were tested for antibacterial activity against Staphylococcus aureus and Shigella spp using disc diffusion method. Also the activity of amoxicillin disc (0.5 g/L ) was measured as a positive control. Furthermore, the drug-likeness as well as the interactions of the compounds against the active site of E. coli carbonic anhydrase which share >98% similarity to that of S. spp were studied using molecular modelling method. The antibacterial activity showed that all the five compounds 3a-e inhibited the two organisms at 100 µg/ml compared to the positive control. The largest inhibition zones of Staphylococcus aureus and Shigella spp were found to be 16.5 mm and 17.5 mm for compound 3d and 3e, respectively. Molecular modelling predicted the compounds to be water soluble, highly absorbed through GI tract, not Pgp substrates and not CYP3A4 inhibitors. Molecular docking studies showed that the compounds showed affinity to E. coli carbonic anhydrase active site, blocking access to the Zn2+ cofactor.
The Efficiency of Chamomile in Crystal Violet Dye Removal Processes
Authors: DANDIL Sahra
Published: December 2023

Bu çalışmada papatyanın adsorplama özellikleri incelenmiştir. Crystal Violet (CV) boya adsorpsiyon proseslerinde adsorban olarak, işlenmemiş papatya (Ch) ve fosforik asit (H3PO4) (Ch-H3PO4) kullanılarak hazırlanan aktif karbon formu kullanılmıştır. Adsorbanların yüzey yapılarını gözlemlemek için Taramalı Elektron Mikroskobu (SEM) analizleri kullanılmıştır. Adsorpsiyon etkinlikleri pH (1-7), zaman (0-300 dk), başlangıç boya konsantrasyonu (10-50 ppm), adsorban miktarı (0,5-2 g/L) ve sıcaklığa (25-45 °C) bağlı olarak her bir adsorban için incelenmiş ve birbiriyle karşılaştırılmıştır. Adsorpsiyon proseslerinin 300 dk’ da dengeye ulaştığı belirlenmiştir. Her iki proseste de en yüksek giderimler pH 7' de elde edilmiştir. Tüm değişen konsantrasyonlarda, her iki adsorban da yüksek giderim yüzdelerine ulaşmıştır. Ayrıca değişen adsorban dozajının, her iki adsorbanın kapasite değerlerini büyük ölçüde etkilediği gözlenmiştir. Kinetik çalışmalarda proseslerin yalancı ikinci dereceden kinetik model ile açıklandığı ve izoterm çalışmalarının Freundlich izotermi ile uyumlu olduğu görülmüştür. Termodinamik çalışmalarında ΔH0 değerleri Ch ve Ch-H3PO4 için sırasıyla 20,69 ve -34,87 kJ mol-1 olarak hesaplanmıştır. Negatif ve pozitif ΔH0 değerleri sırasıyla ekzotermik ve endotermik doğayı gösterir. Ch ve Ch-H3PO4 için ΔS0 değerleri sırasıyla 76,52 ve -95,55 J mol-1K-1 olarak bulunmuştur. Negatif ΔG0 değerleri proseslerin kendiliğindenliğini açıklamaktadır. Sonuç olarak, işlenmemiş papatyanın CV boya gideriminde etkili olduğu, H3PO4 kullanılarak aktif karbon hazırlanması ile etkinliğinin arttığı belirlenmiştir.
Reliability of a computerized system for strabismus screening
Authors:   Department of Ophthalmology, Faculty of Medicine, Prince of Songkla University, Hat-Yai, Songkla 90110, Thailand, Tengtrisorn Supaporn
Published: December 2023

AIM: To evaluate the reliability of Photo-Hirschberg screening for global strabismus performed by non-specialized personnel.
METHODS: Participants at three sites were enrolled. One person at each site was trained in visual acuity measurement and use of the computerized system. Visual acuity was measured, and strabismus testing was performed using two flash photographs. All data from the three primary observers were sent to an experienced assistant researcher, who was blinded to the primary results, for re-evaluation. The primary and re-evaluation results of the Photo-Hirschberg screenings using weighted kappa for agreement were compared.
RESULTS: The study included 181 participants (88 males and 93 females) and the results for primary and re-evaluation screenings were corresponded. Ten participants with contrasting results presented with unclear corneal light reflex. Sensitivity and specificity were 100% [95% confidence interval (CI): 29.0%–100%] and 99.4% (95%CI: 96.6%–100%), respectively, based on the Agresti test of the primary evaluation, considering the re-evaluated classification as true.
CONCLUSION: The computerized system can be used for primary strabismus screening by non-specialized personnel, with 98.8% agreement with specialists. However, it cannot be used as a substitute for professional examination.
Treatment of lacrimal gland adenoid cystic carcinoma: a systematic review and Meta-analysis
Authors:   Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing 100730, China, Yan Hai-Han , Wang Nan ,   Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing 100730, China, Xu Liang-Yuan ,   Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing 100730, China, Guo Qi-Han ,   Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing 100730, China, Li Jing ,   Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing 100730, China, Ma Jian-Min ,   Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University; Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing 100730, China
Published: December 2023

AIM: To evaluate lacrimal gland adenoid cystic carcinoma (LGACC) of prognosis in patients who underwent different treatment regimens.
METHODS: We searched PubMed, EMBASE, and the Cochrane Library for studies done on the treatment of LGACC, between January 1987 and April 2022. A Meta-analysis was conducted to pool the 5-year overall survival rate (OR), and the 5-year recurrence rate (RR) and 5-year metastasis rate (MR) were assessed.
RESULTS: The 30 studies involved 585 patients were included in the Meta-analysis. The pooled 5-year OR with surgery alone was 50%, the 5-year RR was 63%, and the 5-year MR was 34%. The pooled 5-year OR with surgery and adjuvant radiotherapy combined was 67% (95%CI 61%,73%), the 5-year RR was 41%, and the 5-year MR was 35%. The pooled 5-year OR with surgery and adjuvant chemoradiotherapy combined was 72% (95%CI 59%, 84%), the 5-year RR was 48%, and the 5-year MR was 36%. The pooled 5-year OR with surgery, intra-arterial cytoreductive chemotherapy, and adjuvant chemoradiotherapy combined was 78% (95%CI 68%, 89%), the 5-year RR was 15%, and the 5-year MR was 27%.
CONCLUSION: Comprehensive treatment is more effective than surgery alone. Surgery combined with intra-arterial chemotherapy and adjuvant chemoradiotherapy seems to add value to the therapeutic effect of comprehensive treatment of LGACC but further high-quality research is required to validate this.
Applications of SMILE-extracted lenticules in ophthalmology
Authors:   Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran 1968653111, Iran, Aghamollaei Hossein , Fallahtafti Mahsa ,   Vision Health Research Center, Semnan University of Medical Sciences, Semnan 1914853185, Iran, Daryabari Seyed-Hashem ,   Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran 1968653111, Iran, Khabazkhoob Mehdi ,   Department of Basic Sciences, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran 1968653111, Iran, Jadidi Khosrow ,   Vision Health Research Center, Semnan University of Medical Sciences, Semnan 1914853185, Iran
Published: December 2023

AIM: To review recent innovations, challenges, and applications of small incision lenticule extraction (SMILE) extracted lenticule for treating ocular disorders.
METHODS: A literature review was performed in the PubMed database, which was last updated on 30 December 2021. There was no limit regarding language. The authors evaluated the reference lists of the collected papers to find any relevant research.
RESULTS: Due to the simplicity and accuracy of modern femtosecond lasers and the extensive development of SMILE surgery, many healthy human corneal stromal lenticules were extracted during surgery, motivating some professionals to investigate the SMILE lenticule reusability in different ocular disorders. In addition, new approaches had been developed to preserve, modify, and bioengineer the corneal stroma, leading to the optimal use of discarded byproducts such as lenticules from SMILE surgery. The lenticules can be effectively re-implanted into the autologous or allogenic corneas of human subjects to treat refractive errors, corneal ectasia, and corneal perforation and serve as a patch graft for glaucoma drainage devices with better cosmetic outcomes.
CONCLUSION: SMILE-extracted lenticules could be a viable alternative to human donor corneal tissue.
Opinion Dynamics and Social Group Information Efficiency: an agent-based model
Authors: Petrunin Yuri
Published: December 2023

A platform for agent-based modelling of social processes is developed. The focus is on information exchange in a group of social agents. The dynamics of opinions on some topic is modelled, as well as the structure of social ties, which are weakened if opinions are distant and strengthened if opinions are close. In addition, to objectify the notion of "information efficiency of communication in a group", a test is proposed in which the structure of social ties is transferred to the structure of neural network connections, so that the strength of a tie is equated to a weight. Training of such a "sociomorphic" neural network was conducted and tested on the MNIST array, a test of the ability to recognisehandwritten digits from 0 to 9. The previously described effects of polarisation of opinions and division of the group into subgroups with high density of ties within subgroups and weak ties between agents from different subgroups were obtained in the variant of discussion of one topic. To approximate real groups, a topic selection algorithm was added to the basic opinion sharing algorithm, which is performed by comparing the cosine distance between semantic vectors - the vector of values assigned to each agent and the vector of each of the 9 topics. The topic vectors were generated based on the real news agenda of the news agency. The value vectors were taken from work in which a large sample of Russian youth was surveyed about their association with something most important in life. The modelling results show that the presence of several topics in the news agenda makes the communication process more flexible and multidimensional: even for the most semantically close to values and frequently chosen topics, polarisation of opinions was much slower than in the case of a single topic, and complete segmentation of the group was not observed over the modelled time period. This methodological approach can be useful for modelling conflicts in different communities, as well as for designing artificial communities with increased constructive creative potential. For example, the model can be used to optimise communications in complex multicultural societies
Fullerene-doped polyimide materials treated via the vacuum ultraviolet irradiation: Novel possible approach to create the structured relief
Authors: Kamanina Natalia , Zvereva Galina
Published: December 2023

Among the various surface reliefs obtained by the modification of the nanostructured materials used for the orientation of the liquid crystal molecules or applied as the possible way to extend the optical limiting mechanisms, the vacuum ultraviolet irradiation can provoke the novel approach with the varied contact angle and can be recommended for use in the development of the light- and electro-addressable liquid crystal spatial light modulators, switchers, and limiters. The main accent in the current paper is connected with the study of an impact of the vacuum ultraviolet irradiation with the different wavelength and power densities on the fullerene-structured polyimide thin films. To support the proposed idea, the spectral measurements were carried out, the contact wetting angles of the structured surface were determined, and an atomic force microscopic analysis was performed. Based on the data obtained, it is proposed to effectively use such relief formed by the vacuum ultraviolet irradiation for the design of the modulators and converters of the laser radiation, some biomedicine devices and the solar cells as well where a liquid crystal mesophase is actively used as an electro-optical modulating layer. Some ideology of the current article is aimed that the polyimide materials, when irradiated in the vacuum ultraviolet, can perform a dual role, as a photo layer and as an orienting layer as well.
Investigation of poly (2-methyl imidazole co 1,4-butanediol diglycidyl ether) as a leveler for blind hole copper plating
Authors: Zeng Xiangjian , Zhou Qiuman , Yuan Zhenjie , Huang Lixin , Hu Guanghui , He Nian , Zeng Qingming , Pan Zhanchang
Published: December 2023

The current synthetic leveler agents are complex to operate, troublesome to purify, and low to pore filling rates. Herein, we report a new, simple, green, and inexpensive method for the synthesis of leveler agents and study their properties systematically. In acidic copper sulfate plating solutions, including polyethylene glycol (PEG), sodium 3,3’-dithiodipropane sulfonate (SPS), and chloride ions, the relation between leveler agents (dimethylimidazole and 1,4-butanediol diglycidyl ether) and the filling of blind holes have been investigated. The synthesized leveler agent was structurally characterized by infrared spectroscopy and gel chromatography tests. The plating containing the leveler agent passed plating tests as well as reliability tests and met PCB production requirements. The electrochemical behavior of the leveler agent was investigated using electrochemical tests. The X-ray diffractometer (XRD) was used to observe the differences in crystal orientation on the surface of the plated layers.
Adsorption studies of dye molecule on two-dimensional assembly of porphyrin using density functional theory
Authors: Suresh Rahul , Rajaramakrishna R. , Vijayakumar S.
Published: December 2023

Highly toxic dye molecules can be found in trace amounts in the treated effluent from several industrial wastes. A challenging research area of this decade is the dye treatment and adsorption from the effluents of these industries using low-cost alternative adsorbents. Recent studies have demonstrated the effectiveness of metal oxides and porous materials in the adsorption of dye, so we have taken into consideration an organic porous material made with metal free porphyrin. The adsorption of dye molecules on the surface of the porphyrin sheet is investigated. Porphyrin is an organic substance with several special properties. Density functional theory (DFT) is used to investigate the adsorption of charged and neutral dye, as well as complex heavy metal dye, on the surface of porphyrin sheets. Positive dye has a higher affinity for the adsorbent than negative dye, according to the data on adsorption; however, complex dye has a higher adsorption energy than the other dyes, which is consistent with the cohesive energy of the PS-dye complex. In the present work the adsorbing capacity of PS for different dye molecules is demonstrated by the topological analysis and DFT calculations on the electronic structure.
Students' Creative Thinking Ability in Solving Open-Ended Problems Based on Personality Type
Authors: Arumningsih Eys , Rina Dwi Setyawati  , Yanuar Hery Murtianto
Published: December 2023

This study aims to determine the creative thinking ability of junior high school students in solving open ended problems in terms of students' different personality types. This type of research is descriptive qualitative with instruments in the form of Hippocrates - Galenus personality type questionnaire and written test of creative thinking ability on pythagorean theorem material. The subjects of this study consisted of 31 students of class VIII A of Walisongo 1 Semarang Junior High School. The results of this study showed that (1) the results of filling out the personality type questionnaire from 31 respondents obtained 29% of students with sanguinis personality type, 19% of students with choleric personality type, 23% of students with melancholic personality type and 29% of students with phlegmatic personality type. (2) subjects with melancholic personality type have high creative thinking ability, subjects with sanguinis and choleric personality type have moderate creative thinking ability, while subjects with phlegmatic personality type have low creative thinking ability. This study also shows that each student with a different personality type can affect the creative thinking ability of each student.
Implementation of Problem Based Learning Assisted by Learning Management System to Improve Students' Mathematical Communication Skills
Authors: Adi Candra Kusuma  , Almas Adibah  , Gillang Al Azhar  , Edi Sulistio Budi
Published: December 2023

Learning is not limited to the transfer of knowledge, but rather needs to provide opportunities for students to communicate ideas clearly in order to develop more flexible and practical abilities. The aim of the research is to determine the implementation of Problem Based Learning assisted by a Learning Management System (LMS) to improve students' mathematical communication skills. The research method uses a quantitative type, with a sample of class 1F of 23 students as the experimental class and class 1G of 24 students as the control class for the 2022/2023 even semester academic year in the D4 Electronics Engineering study program at the Malang State Polytechnic. Data collection methods such as observation and tests, where instruments are provided with observation sheets and test questions. Data analysis used the normal test, homogeneous test, proportion test, comparison test (test) and the N-gain test. The research results show that the data is normally distributed and homogeneous. The research indicators meet 1) Students' ability to communicate mathematics which is influenced by the treatment given through Problem Based Learning with the help of LMS reaches the minimum standard in learning both (B) individual and classical, exceeds 75%, 2) Students' ability to communicate mathematics which is influenced by the treatment given through Problem Based Learning with LMS support is better than expository learning, 3) The increase in mathematical communication skills of students who take part in Problem Based Learning with LMS support is significantly higher than expository learning, namely 0.496 in the medium category.
Discovery Learning Research in Mathematics Learning (1968-2023): A Bibliometric Review
Authors: Muhammad Ilham , Juandi Dadang
Published: December 2023

The aim of this research is to identify research developments related to Discovery Learning in mathematics learning. This research uses a bibliometric analysis method by collecting data from the Scopus database. The data is then saved in two formats, namely CSV and RIS. Data in CSV format was analyzed using VOSviewer, while data in RIS format was analyzed using Harzing's Publish or Perish software. This research refers to 72 research sources regarding discovery learning in mathematics learning from 1968 to 2023. The research results show that the number of publications related to discovery learning in mathematics learning continues to increase every year. Publications in 2012 had more than 130 citations, this number exceeds publications in other years. The majority of these publications were found in Q2 category journals, with a total of 28 publications. The focus of this research covers three main areas: 1) learning outcomes, learning environments, and the role of universities; 2) technology and STEM (Science, Technology, Engineering, and Mathematics); 3) problems in teaching mathematics. New themes that emerge in research regarding discovery learning in mathematics learning include STEM, communication, self-confidence, learning activities, creativity, critical thinking, and efficacy. However, the term "Discovery Learning" is not yet directly connected to new concepts such as critical thinking and learning methods. This research provides in-depth insight into the development of Discovery Learning in the context of mathematics learning, as well as a better understanding of the dominant research focus and current trends in this field.
Ethnomathematics at TIFA Yapen as A Source for Learning Mathematics
Authors: Yeni D. Fonataba  , Ronaldo Kho  , Bettisari Napitupulu  , Irfan Wahyudi  , Happy Lumbantobing
Published: December 2023

This study's primary objective is to investigate and elucidate the principles and regulations of ethnomathematics prevalent in the Yapen Islands of Papua, Indonesia, for application in the context of mathematics education in schools. The research methodology involves qualitative research with an ethnographic approach. Data was collected through participant observation techniques and in-depth interviews, and the subsequent data analysis followed a sequence of ethnographic data analysis, domain analysis, and taxonomic analysis. The findings of this research indicate that precise measurements of the tifa's length and width significantly affect the sound (tone) produced when the tifa is struck. The design aspect involves the ability to elucidate the steps and sequence involved in crafting a tifa, ensuring clarity and comprehensibility in the explanation. Furthermore, the ability to explain extends beyond comprehending the manufacturing process to effectively communicating it to the general public. The geometric patterns observed on the tifa include circular shapes on the lid and base, a prism shape near the tifa cover, an isosceles trapezoid shape on the tifa handle, and a parallelogram shape on the tifa handle.
NiO/C-based anodes for lithium-ion current sources
Authors:   Ural Federal University, Leonova Natalia M. , Leonova Anastasia M. ,   Ural Federal University, Bashirov Oleg A. ,   Ural Federal University, Suzdaltsev Andrey V. ,   Ural Federal University
Published: December 2023

Nowadays, the active search for an anode material, which can be used in lithium-ion current sources, takes place. The potential anode materials are transition metal oxides (SnO2, NiO and others). In this work, submicron NiO powder was obtained using the thermal decomposition of Ni(CH3COO)2·4H2O. Besides, a NiO/C composite anode was fabricated and its behavior in the anode half-cell of lithium-ion current source was studied during multiple cycling. The workability of the anode material was shown and its main energy characteristics were determined. The discharge capacity of the NiO/C anode was 355 mA·h/g at the current of C/10 and Coulomb efficiency was 99–100% after 40 cycles.
Histological and computed tomography study of osteoderm regeneration in the skink lizard Eurylepis taeniolata Blyth, 1854 (Scincidae, Squamata)
Authors:   Saint Petersburg State University, Cherepanov G. O. , Gordeev D. A. ,   Volgograd State University, Melnikov D. A. ,   Zoological Institute of RAS, Ananjeva N. B. ,   Zoological Institute of RAS
Published: December 2023

Skink lizards have an unusual complex osteoderm, which consists of several bone elements – osteodermitis. We have carried out the first histological and computer microtomographic study of the structure of the original and regenerating complex osteoderms of skink lizards using Eurylepis taeniolata as an object. The topography of osteoderms in the integument of the original region of the tail and its regenerated part was studied. The fundamental similarity of the morphology and microstructure of the original and regenerated osteoderms was showed. A description of the development of the microstructure of a complex osteoderm in the process of regeneration is given. The presence of osteodermin on the surface of osteoderms in the studied species was revealed.
Some features of thermobiology of steppe-runner Eremias arguta (Gmelin, 1789) and spotted toadhead agama Phrynocephalus guttatus (Gmelin, 1789) (Squamata, Reptilia) in cohabitation in the Northern Pre-Caspian
Authors:   Perm State Humanitarian Pedagogical University, Perm State University, Chetanov N. A. , Litvinov N. A. ,   Perm State Humanitarian Pedagogical University, Ganschuk S. V. ,   Perm State Humanitarian Pedagogical University, Yugov M. V. ,   Perm State Humanitarian Pedagogical University
Published: December 2023

The paper presents data on temperatures of the body and the selected substrate for the steppe-runner and the spotted toadhead agama. Thermal preferences and modal classes for both species were determined, and interspecies differences were analyzed. Significantly higher average temperatures were found in the steppe-runner, while the maximum voluntary temperatures are higher in the spotted toadhead agama. These features are associated with the biotopic confinement of species. Representatives of both species, even in the spring, have a lower body temperature compared to the environment, which is achieved due to behavioral thermoregulation.
Unveiling the evolutionary patterns of Ecistic space in the Saratov region during the latter half of the imperial era (1800–1917)
Authors:   Saratov State University, Demin Alexander M. , Fedorov Alexey V. ,   Saratov State University
Published: December 2023

This study delves into the profound transformation of demographic and Ecistic space within the contemporary Saratov region during the latter half of the imperial era (1800–1917). Spatial and temporal trends, as well as the driving forces behind their development, have been meticulously examined. The findings reveal a fascinating process of Ecistic space metamorphosis within the region. This intertwines with the wave-like dynamics of numerous socio-technical innovations (including the emancipation of serfs and the establishment of free land trade, state peasant reforms, the advent of the industrial revolution, and the sweeping Great Reforms). It is evident that the colonization phase of territorial exploration and the establishment of a fundamental hierarchical framework (governorate → district → volost → city → village) within the Ecistic space of the region have reached their culmination.
Pilot innovative territorial clusters: Spatial differentiation, patterns of development and efficiency
Authors:   National Research Mordovia State University, Nosonov Arthur M.
Published: December 2023

The article is devoted to the study of an important component of innovative infrastructure – pilot innovative territorial clusters. The mainstages of their formation wereconsidered,spatial patterns of development,structure and economic efficiency were identified and analyzed. The purpose of the study is to analyze the spatial regularities of pilot innovative territorial clusters functioning to justify the promising directions of the state cluster policy contributing to the effective use of the financial resources of the federal budget by determining priority investment directions and establishing on this basis the recipients of state support in the cluster with the greatest potential in the context of limited financial resources. This is promising primarily for justifying the stimulation of new high-tech industries and enterprises. The study was carried out on the basis of materials from official federal and regional statistics, information and analytical reports of the Association of Clusters, Technoparks and SEZs of Russia, official ratings of regions innovative development, legislative acts of the federal and regional levels. Patterns of functioning and trends in the development of innovative territorial clusters have been identified. The main purpose of the emerging innovative territorial clusters is to saturate the huge domestic market with high-tech goods, services and technologies in order to achieve the country’s technological independence. Promising directions for improving the cluster policy of Russia are formulated.
Synoptic conditions for the formation of thunderstorms with heavy rainfall over the territory of Western Siberia
Authors:   Saratov State University, Pryakhina Sofya I. , Kotova Anna A. ,   Saratov State University
Published: December 2023

The article presents the study results of thunderstorm activity with rainfall over a large territory of Western Siberia in its three regions: Northern, Central and Southern over a seven-year period from 2017 to 2023. The study revealed the most favorable synoptic conditions for the formation of thunderstorm activity with heavy rainfall over a large area of Western Siberia. Cases are also reviewed and factors that need to be paid attention to when forecasting thunderstorms with squally winds are identified.
Irrigation system in the Late Cretaceous Hexactinellids (Porifera, Hexactinellida)
Authors:   Saratov State University, Pervushov Evgeny M.
Published: December 2023

Within the skeletal structure of the medium- and the thick-walled Hexactinellids, the active filtration surface area was increased at expense of the elements of the irrigation system. The ostia and the transversal canal structures, the densities of their occurrences correlate with the values of the wall thickness, the skeleton habitus, the level of modular organization; they are in many ways determined by the parameters of the sponge habitats.
Social and psychological determinants of an individual’s attitude to unmanned transport
Authors:   Russian State Social University, Saenko Alexsey Yu.
Published: December 2023

The relevance of the study is due to the fact that the technology of unmanned transport is being tested more and more actively and is gradually introduced into our lives promising various advantages. Meanwhile, it is stated that an unmanned vehicle causes distrust, unlike a driver-driven vehicle. The purpose of the study is to conduct a theoretical review of Russian and foreign literature in the field of studying people’s attitudes to innovative technologies and to identify the social and psychological determinants of the individual’s attitude to unmanned vehicles. The research methods: theoretical analysis of domestic and foreign literature studying attitudes to innovative technologies, artificial intelligence, as well as unmanned motor transport. Results. The study has considered the formation of the concept of diffusion of innovations. Modern models of technology adoption have been studied. The article highlights a number of social and psychological determinants of a person’s attitude to an unmanned vehicle. The main conclusions. The conducted theoretical research allows us to conclude that the attitude of an individual to the unmanned transport technologies is a multifactorial phenomenon that is formed under the influence of various psychosocial factors. It is concluded that it is necessary to structure the process of introducing the unmanned vehicle technology from the standpoint of the socio-psychological attitude of an individual to such a technology.
Overcoming stressful situations and professional burnout of nurses: Analysis of the network
Authors:   Udmurt State University, Leonov Ilya N.
Published: December 2023

The relevance of the research is due to the fact that methods of coping with stress are an important predictor of professional burnout. However, previous studies have focused on the assessment of two-dimensional correlations, and did not take into account the complex structure of connections of coping methods both with each other and with the symptoms of professional burnout. The use of a network approach allows us to overcome this limitation. The purpose of the study is to reconstruct the network of correlations between the ways of coping with stressful situations and professional burnout and also to describe this network. The research hypothesis that ways of coping with stressful situations form clusters of nodes which are connected with each other and with burnout symptoms, contributing to the manifestation of nurses’ burnout. Participants: 97 nurses (Udmurt Republic) aged from 24 to 71 years old (M = 46.58; SD = 9.54) with work experience from 2 to 53 years (M = 24.95; SD = 9.92). Methods: “Dealing with Difficult Life Situations Questionnaire” (by W. Janke, G. Erdmann), which allows to evaluate 20 dispositional ways to overcome stressful situations, and “Maslach Burnout Inventory for Medical Personnel” (by C. Maslach, S. Jackson), aimed at studying the symptoms of burnout; network analysis. Results: the study has revealed that ways of coping with stressful situations form intercorrelated clusters. The nodes of the first cluster are aimed at reducing stress and are associated with professionalism as a symptom of burnout, and the nodes of the second cluster contribute to stress growing and are associated with emotional exhaustion and cynicism. The central node of the first cluster is the desire to successfully solve the problem, and the central node of the second cluster is the inability to distract from the problem. Conclusion: the results obtained are consistent with the previous studies, but clarify them. The study describes the activation specifics of the identified patterns based on the structure of correlations, which makes it possible to predict the response of the network under study to psychological influences. Practical significance: the research results can be useful for identifying indicators of professional burnout based on the observed patterns of stress management. The study is the first one carried out in this area on the basis of a network approach.
Occupational Stress and Coping Strategies among Self Financing Arts and Science College Faculties in Erode
Authors: Kowsalya Ms. N. , Mohanraj Dr. P. , Akalya Ms. R.
Published: December 2023

The aim of the study is to find out the stress management level of arts and science college teachers in Erode City. The teachers are the assets of any country. They are burdened with the greatest responsibility of ‘Nation Building’. The teaching profession has an esteemed place among all professions. However, teaching as a profession at any level is becoming more demanding day by day. Teaching has also become more like a managerial job and is having multi-dimensional job responsibilities. Stress can’t be avoided, but one can learn how to manage it. Policy makers are advised to analyze the college teacher training and assessment system with the assumption that personal and social characteristics and working conditions may have an effect on college teacher stress. The present paper discusses the various emerging issues of occupational stress among faculties of higher education in India and required management strategies to handle them. Sample teachers were selected for simple random sampling by using lottery method because of easy accessibility and affordability analyzed by using statistical package of simple percentage and chi square analysis.
Public Health Expenditure and Infant Mortality Rate in Nigeria
Authors: Anokwuru George , Chidinma Chioma
Published: December 2023

This study investigated the effect of public health expenditure on infant mortality rate in Nigeria from 2002 to 2021. To achieve the above objective, this study utilized data on infant mortality rate, total government expenditure on health and migration of doctors and nurses trained in Nigeria - doctors and nurses trained in Nigeria but working in other countries from OECD Health Statistics, 2021, WHO, UNICEF, UNFPA, World Bank Group, the United Nations Population Division and Statistical Bulletin of Nigeria’s apex bank. The study employed an Autoregressive Distributed Lag (ARDL) Bounds testing procedure for data analyses. The results revealed that in the long run, total government expenditure on health, as well as migration of doctors and nurses trained in Nigeria - doctors and nurses trained in Nigeria but working in other countries have negative and insignificant relationship with infant mortality rate in Nigeria. However, in the short run, total government expenditure on health, as well as migration of doctors and nurses trained in Nigeria - doctors and nurses trained in Nigeria but working in other countries have positive and significant relationship with infant mortality rate in Nigeria. What this means is that though there has been expenditures on health sector in Nigeria by the government from 2002 to 2021, but the expenditures are low and couldn’t reduce infant mortality rate to a near-zero level in Nigeria. Also, in the short-term, the movement of doctors and nurses from Nigeria to others countries of the world, exacerbated infant mortality rate in Nigeria during the period of study. Based on the forgoing, it is recommended here that government should spend at least 15% of its annual budget on health sector as agreed by African leaders at Abuja in 2015. Government should also reduce the exodus of Nigerian doctors to other countries of the world. This, the government may be able to achieve by increasing budgetary allocation to healthcare sector, enhance doctors’ remuneration, ensure a better work environment with modern healthcare facilities together  with general enhancements in basic life facilities including housing, health insurance, security, constant power supply and good roads.
Angiotensin-converting enzyme: a well-known stranger. Part II
Authors: Nalesnik E. O.
Published: December 2023

The angiotensin-converting enzyme (ACE) is constitutively expressed on the surface of endothelial, epithelial and immune system cells (macrophages, dendritic cells). The lungs are believed to be the main source of circulating ACE. However, other organs such as the small intestine, kidneys, heart, brain, epididymis, and prostate have also been found to express ACE at levels comparable to those in the lungs. ACE expression is regulated not only passively by the number of endothelial cells, but also by endothelial function. In general, the biochemical environment is the driving force behind the enzymatic activity of ACE, influencing cells capable of expressing ACE and regulatory proteins. The discovery of tissue ACE has changed our understanding of the pathophysiology of many diseases. In particular, it turned out that renal versus circulating ACE is more important in the development of arterial hypertension, diabetic nephropathy, acute and chronic kidney disease.
Influence of a new coronavirus infection on the arterial stiffness in patients with hypertension
Authors: Avdeeva I. V. , Pavlenko K. I. , Salyamova L. I. , Lukyanova M. V. , Oleinikov V. E.
Published: December 2023

Objective. The aim of the study was to compare the parameters of lipid profile, arterial stiffness and endothelial function in patients with arterial hypertension (HTN), examined before the COronaVIrus Disease-2019 (COVID-19) pandemic, and patients with HTN who underwent COVID-19.

Design and methods. In total, 133 people were included: 72 patients with HTN examined in 2010–2015, 61 patients with HTN who survived after COVID-19. A biochemical blood test was performed to determine the level of glucose, total cholesterol, triglycerides, and high-density lipoprotein cholesterol. The level of low-density lipoprotein cholesterol and non-high-density lipoprotein cholesterol was calculated. The parameters of arterial stiffness were assessed using volume sphygmography, endothelial function was determined based on the values obtained in the sample with post-occlusive reactive hyperemia.

Results. According to the results of a biochemical blood test, a significantly higher level of total cholesterol and non-high-density lipoprotein cholesterol was noted in patients with HTN who underwent COVID-19. In the compared groups, comparable indicators of endothelial function were registered with post-occlusive reactive hyperemia. At the same time, according to volume sphygmography, the highest values of arterial stiffness indicators (pulse wave velocity in the aorta, pulse wave velocity in elastic arteries, cardio-ankle vascular index on the right and left) were found in patients with HTN who had undergone COVID-19. A univariate regression analysis was carried out, which confirmed a significant negative effect of the transferred COVID-19 on the parameters of arterial stiffness.

Conclusions. Patients with HTN in the post-COVID period represent a particularly vulnerable cohort of the population in terms of the risk of developing and progressing cardiovascular pathology, including vascular events. The inclusion of volume sphygmography in the list of examinations will probably allow early detection of an increase in arterial stiffness with subsequent drug correction.