bluuebunny/crossref_metadata_2025 huggingface dataset:
Reactivity of [3+1+1] Uranyl-DGA Complex as Lewis-acid Catalyst in Nucleophilic Acyl Substitution of Acid Anhydrides
Authors: Akashi Shin , Takao Koichiro
Published: November 2024

A UO22+ complex bearing N,N,N’,N’-tetraisopropyldiglycolamide (TiPDGA) and two DMF molecules was designed and prepared to explore a catalytic activities of the Lewis-acidic U centre. The cationic complex, [UO2(TiPDGA)(DMF)2]2+, was successfully obtained as a ClO4− salt under optimized reaction condition with appropriate mixing ratio between UO22+ and TiPDGA to maintain 1:1 stoichiometry, non-coordinating ClO4− counteranion to reserve coordination sites for substrate activation, and presence of extra HClO4 to suppress undesired hydrolysis of UO22+ competing with the expected complex formation. This UO22+ complex was thoroughly characterized by IR, elemental analysis, X-ray crystallography, and 1H NMR to confirm the desired [3+1+1] equatorial coordination is actually formed in the solid state, and still maintained even after dissolution in CD2Cl2. [UO2(TiPDGA)(DMF)2]2+ was further subjected to nucleophilic acyl substitution reactions of acid anhydrides to assess its activity and capability as a Lewis-acid catalyst there. Although the observed reaction rates are not very rapid, some characteristic aspects to gain reaction- and substrate-selectivity have appeared thanks to the equatorial coordination sphere sterically regulated by the tridentate auxiliary TiPDGA ligand and labile monodentate DMF molecules to activate an acid anhydride after ligand substitution.
Relationship Between Sales, Sex, and Indigenous Self-Identification for Entrepreneurs in Mexico from 2016 to 2022
Authors: Fuentes-Contreras Roberto Ivan , Librado-Gonzalez Moises , Salinas-Solís Karina Isabel , Rugerio-Hernandez Fernando
Published: November 2024

The objective of this research is to estimate the differences in sales levels between businesses operated by individuals who self-identify as indigenous (IE) and those who do not (NIE), as well as between men (ME) and women (WE), and how this intersection may affect their sales levels. To achieve this, an Analysis of Variance (ANOVA) will be employed to compare the means between the analyzed groups, and Tukey's Honestly Significant Differences (HSD) will be used to determine the magnitude and direction of these differences. The study results reveal that businesses led by indigenous individuals have sales that are 26% below the general average, while businesses led by women show a 70.6% reduction in the same comparison. Furthermore, businesses led by indigenous women have, on average, 93.5% lower sales. These findings suggest that the challenges faced by entrepreneurs reflect the structural inequalities observed in other areas of society, highlighting the need for public and private actions focused on reducing these gaps.
Divergent Patterns of Metabolite Expression in Red Seaweeds (Devaleraea mollis and Palmaria hecatensis) Following Nitrate and Ammonium Supplementation
Authors: Umanzor Schery , Jung Jae Woo , Dittrich Muriel , Kim Jang K , Tomco Patrick , Brandhuber Monica
Published: November 2024

This study explores species-specific metabolic responses to different nitrogen-rich formulations in Devaleraea mollis and Palmaria hecatensis, highlighting distinct adaptive strategies. We evaluated the effects of Von Stosch Enrichment (VSE, nitrate-only), F/2 (nitrate-only), and Jack’s Special (JS, nitrate and ammonium) on metabolic profiles. D. mollis exhibited elevated energy storage and growth-related me-tabolites, with JS enhancing creatine production for energy storage and regeneration, alongside increased DNA/RNA synthesis and cell division activity. This suggests D. mollis prioritizes rapid growth and energy demands, supporting broader ecological adaptability. Conversely, P. hecatensis showed higher expression of metabolites linked to amino acid metabolism and protein synthesis, indicating a focus on efficient nitrogen use for protein production, likely advantageous in low-light, high-turbidity conditions. Nitrogen sources significantly influence amino acid metabolism, with JS promoting broader amino acid production and VSE and F/2 stimulating specific metabolites. These species-specific metabolic patterns underscore the flexibility of D. mollis in energy use versus adaptations of P. hecatensis to protein synthesis pathways. These findings highlight species-specific nutrient formulations as essential for optimizing seaweed growth and metabolic traits in aquaculture.
The Analysis of Autosomal STRs Draws the Current Genetic Map and Evolutionary History of Northernmost South America
Authors: Moncada Madero Julie , Mogollón Olivares Fernanda , Suárez Medellín Dayana , Coronel Guzmán Alejandra , Casas Vargas Andrea , Usaquén Martínez William
Published: November 2024

Objectives: To analyze Colombia’s current human population employing a population genetics approach enriched by genealogical, demographic, cultural, and historical data to learn about its evolutionary history and to elucidate ethnic belonging and relationship patterns between its various population groups. Materials and Methods: This study relies on ten autosomal microsatellite markers (STRs) from 1364 individuals surveyed throughout the country. Aside from employing descriptive population genetics, substructure, and distance analysis, this investigation evaluated genealogical, demographic, cultural, and historical data gathered from fieldwork surveys. Results: We present a genetic diversity and ethnic belonging map of Colombia that suggests a nine-population classification (under afro-descendant, Native American, and Admixed ethnicity labels) that reveals traces of evolutionary processes discussed in the light of recent literature based on modern molecular markers. Colombia's genetic trace from Africa varies among territories, as shown here by two differentiated afro ancestry components: Chocó and San Andrés, in addition to the afro admixture category. Some Native American peoples like the Wayúu, Zenú, Ticuna, Huitoto and Cocama have a genetic configuration that remains relatively preserved. Nevertheless, other self-determined indigenous peoples who remained in their ancestral territories, exhibit genetic introgression that is also reflected by their acculturation levels such as the Pijaos, Kankuamos, and Mokaná. The population classified as European admixture also shows an ancestry component that seems to be more fixed throughout neighboring territories, but whose fluctuation depends on their specific demographic histories. Conclusions: This study combines STRs, a targeted sampling strategy, and advanced analytical tools to explore Colombia’s genetic diversity and evolutionary history. Locally, the findings they enhance understanding of genetics in a post-conflict society, crucial for human identification. Globally, they contribute to human population genetics, helping address evolutionary questions using data from diverse human ancestries and geographies.
Effectiveness of Fecal Microbiota Transplantation in Nociplastic Pain Management: A Systematic Review
Authors: Martín Pérez Sebastián Eustaquio , Abdel Lah Hakim Al Lal , Hernández García Nelson , Reyes Carreño Umabel Aaron , Martín Pérez Isidro Miguel
Published: November 2024

Nociplastic pain, commonly observed in conditions like fibromyalgia, chronic fatigue syndrome, and irritable bowel syndrome, stems from altered central pain processing and is often inadequately managed by conventional therapies due to its complex pathophysiology involving gut-brain axis interactions and immune dysregulation. Fecal microbiota transplantation offers a potential means of symptom relief through the restoration of gut microbial balance. This systematic review, adhering to PRISMA guidelines and pre-registered with PROSPERO CRD42024611939, evaluated the efficacy and safety of Fecal microbiota transplantation in nociplastic pain management. Searches across databases, including MEDLINE (PubMed), ELSEVIER (Scopus), EBSCOhost, Cochrane Library, and Web of Science, identified eligible studies comprising clinical trials, case reports, and retrospective analyses on adult populations receiving microbiota transplantation for nociplastic pain. Quality assessment utilized tools such as Cochrane RoB 2, ROBINS-I, NOS, and CARE. The review included 13 studies with n = 409 subjects, demonstrating reductions in pain intensity, fatigue, and quality-of-life improvements, particularly in Fibromyalgia and IBS patients. However, outcomes for CFS and psoriatic arthritis were mixed, potentially influenced by differences in Fecal transplantation protocols, donor selection, and patient characteristics. Reported adverse events were minimal. Although FMT shows promise for treating nociplastic pain, further high-quality, standardized studies are necessary to confirm its long-term efficacy and optimize clinical protocols.
Pain Perception Threshold After Acute Exposure to High Altitude
Authors: Vilca-Coaquira Kely Melina , Calisaya-Huacasi Ángel Gabriel , Tejada-Flores Jeancarlo , Tintaya Ramos Henry Oscar , Quispe Trujillo Mariela Mercedes , Quispe-Humpiri Solanyela Anny , Rojas Chambilla Rossela Alejandra , Flores-Paredes Alcides , Peña Vicuña Gilberto Félix , Salazar-Granara Alberto Alcibiades , Lens Sardon Luis F. , Yang Moua , Viscor Ginés , Hancco Zirena Iván
Published: November 2024

(1) Background: Previous studies indicate that individuals at high altitudes have a lower pain threshold than those living at sea level. This study evaluates the differences in pain perception among young people living at 3,800 meters and after acute exposure to a severe hypoxic environment at more than 5,100; (2) Methods: Fourteen people (BMI of 22.6 ± 1.2 and age of 23.3 ± 1.9 years) residing in the city of Puno (3,825m) participated in an ascent to the Populated Center of La Rinconada (5,100m). The unilateral ischemia pain provocation test was used, applying pressure with a manual sphygmomanometer to generate transient ischemia in the arm while the patient opens and closes their hand. Onset, peak, and resolution times of pain, heart rate, and oxygen saturation were recorded.; (3) Results: At their residence altitude of 3,828 m, the mean hemoglobin was 16.16 ± 2.29 while at 5,100 m mean hemoglobin increased to 17.57 ± 1.74. The average time to pain onset in the right arm was 30.43 seconds ± 14.15 at 3,828 m whereas at 5,100 meters above sea level, the pain perception was at 31.00 seconds ± 19.01. At 3,828 m, the average time to pain sensitivity in the left arm was 19.93 seconds ± 9.44 and increased to 23.07 seconds ± 10.83 at 5,100 m; (4) Conclusions: During exposure to a severe hypoxic environment the pain perception threshold was similar between 3,828 m and 5,100 m above sea level.
Development of an Analytical Model for Predicting the Shear Viscosity of Polypropylene Compounds
Authors: Seifert Lukas , Leuchtenberger-Engel Lisa , Hopmann Christian
Published: November 2024

The need for efficient adaptation of existing polypropylene (PP) formulations or the creation of new formulations has become increasingly important in various industries. Variations in viscosity resulting from changes in raw materials, fillers and additives can have a significant impact on the processing and quality of PP products. This study presents the development of an analytical model designed to predict the shear viscosity of complex PP blends. By integrating established mixing rules with novel fitting parameters, the model provides a systematic and efficient method for managing variability in PP formulations. Experimental data from binary and multi-component blends were used to validate the model, demonstrating high prediction accuracy over a range of shear rates. The proposed model serves as a valuable tool for compounders and manufacturers to optimise PP formulations and develop new recipes with consistent processing and product quality. Future work will include industrial scale trials and further evaluation against advanced machine learning approaches.
Entegre Raporlama Üzerine Bibliyometrik Bir İnceleme
Authors: Güven Birol
Published: November 2024

Amaç: Bu araştırmanın amacı, entegre raporlamaya ilişkin akademik çalışmaların gelişimini, genel durumunu ve odak noktalarını bibliyometrik analiz yöntemi ile incelemek ve konu ile ilgili panoramik fotoğraf sunmaktır
Tasarım/Yöntem: Araştırmada Web of Science Core Collection veri tabanında 2011-2023 yılları arasında entegre raporlama konusu ile ilgili yayınlanmış 670 makale, bilim haritalama tekniğine dayalı bibliyometrik analiz yöntemi ile incelenmiştir. Bibliyometrik verilerin analiz edilmesi ve sonuçların görselleştirilmesinde R bibliometrix paketi, VOSviewer ve Microsoft Excel birlikte kullanılmıştır.
Bulgular: Analizler sonucunda; yıllar itibariyle konuyla ilgili yapılan çalışmaların artış eğilimi gösterdiği ve konuya olan ilginin giderek arttığı; entegre raporlama konusunda en üretken ülkenin İtalya, yazarın Warren Maroun ve derginin Meditari Accountancy Research olduğu; iş birliği oranı en yüksek ülkenin İngiltere ve yazarların Nicola Raimo ve Filippo Vitolla olduğu sonucuna ulaşılmıştır.
Sınırlılıklar: Çalışmada bir veri tabanının kullanılmış olması, çalışmanın kapsamına sadece makalelerin ve dört çalışma alanının dahil edilmesi araştırımın sınırlılıklarıdır.
Özgünlük/Değer: Entegre raporlama ile ilgili bibliyometrik çalışmaların sınırlı sayıda olduğu görülmektedir. Ayrıca ulusal literatürde Web of Science, Scopus gibi dünyaca bilinen veri tabanlarında listelenen çalışmalar üzerine bir araştırmanın yapılmadığı görülmektedir. Bu bakımdan bu çalışma, entegre raporlamaya ilişkin yayınlarının eğilimlerini vurgulayarak literatürüne katkıda bulunması araştırmanın özgün değerini oluşturmaktadır.
BIST 50 Şirketlerinin Finansal Performanslarının TOPSIS, VIKOR ve PROMETHEE Yöntemleri İle Karşılaştırılması
Authors: Dağidir Buse Duygu , Elevli Birol , Çelikkol Hakan
Published: November 2024

Amaç: Bu çalışmada, yatırımcılara yatırım kararlarında destek olmak amacıyla, şirketlerin finansal performanslarının değerlendirilmesinde çok kriterli karar verme (ÇKKV) tekniklerinin etkinliği araştırılmaktadır.
Tasarım/Yöntem: BIST 50 endeksinde işlem gören banka harici 45 şirketin 2023 yılı finansal performansları TOPSIS, VIKOR ve PROMETHEE yöntemleriyle değerlendirilmiştir. Finansal performans değerlendirmesi için literatürde sıklıkla kullanılan sekiz finansal oran değerlendirme kriteri olarak seçilmiş ve kriter ağırlıkları literatür destekli olarak hesaplanmıştır. Farklı yöntemler kullanılarak elde edilen sıralamalar değişiklik gösterebildiğinden, uzlaşık bir sonuca ulaşabilmek için ayrıca tüm şirketlerin Borda skorları hesaplanmış ve yöntem bazında elde edilen sıralamalar tek bir sıralama listesine dönüştürülmüştür.
Bulgular: Yapılan analizler sonucu her üç yöntemde de en iyi finansal performansa sahip şirket “Koza Altın İşletmeleri A.Ş.” olarak belirlenirken, bütünleşik sıralama sonuçlarına göre de ilk sıralarda yer alan şirketlerin genel olarak değişmediği görülmüştür.
Sınırlılıklar: Çalışmada, BIST 50 endeksinde işlem gören banka harici 45 şirketin 2023 yılı verileri kullanılmıştır.
Özgünlük/Değer: Bu çalışma, yatırımcılar için finansal performans değerlendirmelerinde ÇKKV yöntemlerinin uygulanabilirliğini vurgulamakta ve bu yöntemlerin yatırım kararlarına katkı sağlayabileceğini ortaya koymaktadır. Elde edilen bulgular, yatırımcılara yol gösterici nitelikte olup, finansal performans değerlendirmelerine yeni bir perspektif sunmaktadır.
15 Temmuz Darbe Girişimi ve 28 Şubat Postmodern Darbesinin Karşılaştırmalı Bir Değerlendirmesi
Authors: Işık Muhittin
Published: November 2024

Amaç: Bu araştırmanın amacı, 15 Temmuz Darbe Girişimi ve 28 Şubat Postmodern Darbesinin farklı boyutlarıyla karşılaştırmalı bir değerlendirmesini yapmaktır.
Tasarım/Yöntem: Araştırma tek bir yöntemle sınırlandırılmamıştır. Bu bağlamda kavram ve olaylar serisinin net bir şekilde anlaşılması için araştırmada arşiv araştırması tekniği, tarihsel ve betimsel araştırma yöntemlerinden yararlanılmıştır. Bu teknik ve yöntemler aracılığıyla 15 Temmuz Darbe Girişimi ve 28 Şubat Postmodern Darbesi’si farklı boyutlarıyla karşılaştırmalı olarak değerlendirilmiştir.
Bulgular: Analizler sonucunda; aktörler, ekonomik etkiler, kamuoyundaki yansımalar çerçevesinde ele alındığında 15 Temmuz Darbe Girişimi ve 28 Şubat Postmodern Darbesi’nin ortak yönleri olmakla beraber farklı özelliklerinin olduğu sonucuna ulaşılmıştır. Bu çerçevede her iki gelişme de Türkiye’de demokrasinin gelişmesine engel teşkil etmiş, Türkiye ekonomisini derinden etkilemiştir. Ancak ordu ve medyanın başat aktör olduğu 28 Şubat Postmodern Darbesi farklı kesimleden destek almış olmasına rağmen, 15 Temmuz Darbe Girişimi’nin Fethullahçı Terör Örgütü dışında herhangi bir aktörün açık desteğini almadığı ileri sürülebilir.
Sınırlılıklar: Örneklemin sadece 15 Temmuz Darbe Girişimi ve 28 Şubat Postmodern Darbesi’nden oluşması ve söz konusu iki gelişmenin ana hatlarıyla karşılaştırmalı bir değerlendirmesinin yapılması araştırmanın sınırlılıklarıdır.
Özgünlük/Değer: Darbe alanında yoğun olarak çalışılmasına karşın 15 Temmuz Darbe Girişimi’nin 28 Şubat Postmodern Darbesi ile karşılaştırmalı değerlendirmesi kapsamında sınırlı sayıda incelemelerin olduğu saptanmıştır. 15 Temmuz ve 28 Şubat özelinde darbelerin aktörleri, motivasyonları, ekonomik etkileri ve kamuoyundaki yansımaları incelenerek darbe literatürüne katkı sağlayabilecek sonuçlara ulaşması araştırmanın özgün değerini oluşturmaktadır.
Karşı Ticaretin Özellikleri, Dış Ticaret Açığını Azaltmadaki Yeri ve Türkiye’de Uygulama Alanı
Authors: Ketboğa Metin
Published: November 2024

Amaç: Bu çalışmanın amacı Türkiye’de kronik hale gelen dış ticaret açığının azaltılmasını sağlayacak önemli yollardan biri olan karşı ticareti ve özelliklerini inceleyerek, son on yıl içinde karşı ticaretin Türkiye’deki gelişimini ve Türkiye’nin dış ticareti içindeki yerini irdelemektir.
Tasarım/Yöntem: Araştırmada TÜİK’in 2014-2023 yılları arasındaki son 10 yıllık verileri kullanılarak karşı ticaretin Türkiye’nin dış ticareti içindeki yeri belirlenmeye çalışılmıştır.
Bulgular: Yapılan incelemler neticesinde TÜİK’in verileri incelendiğinde Türkiye’de son on yıl içinde ihracatın ithalatı karşılama ortalamasının %73,8 olduğu görülmektedir. Yani, her 100 USD’lik ithalat için 73.8 USD ihracat bedeli ödenirken, kalan 26.2 USD’lik kısım Merkez Bankasının kısıtlı olan kaynaklarından karşılanmaktadır. Bu noktada özellikle petrol ve petrol ürünlerinin satın alındığı komşu ülkelerle karşı ticaretin artırılması ve bu yolla ülkeden döviz çıkışının önüne geçilmesi, ileriye yönelik atılması gereken önemli adımlardan biridir.
Sınırlılıklar: Türkiye’nin dış ticaretinde kullnaıln ödeme sistemlerinin geriye yönelik araştırmasında detaylı verilerin çok daha fazla yıla yayılamaması araştırımın sınırlılıklarıdır.
Özgünlük/Değer: Yapılan literatür taramasında karşı ticaretle ilgili sınırlı çalışmaların yapıldığı görülmekle beraber bu çalışmaların daha çok 1980-1990’lı yıllarda yapıldığı ve bu çalışmalarda karşı ticaretin genel yapısının incelendiği, karşı ticaretin dış ticaret açığını azaltmadaki rolüne değinilmediği görülmektedir. Bu çalışmada, karşı ticaret bu açıdan değerlendirilerek, karşı ticaretin dış ticaret açığını azaltmadaki rolü araştırılmıştır.
Türkiye’de Sağlık Turizmi Literatürünün Bibliyometrik Analizi
Authors: Karadurmuş Derya , Sevim Ekrem
Published: November 2024

Amaç: Bu çalışma, Türkiye'deki sağlık turizmi literatürünün kapsamlı bir bibliyometrik analizini yaparak, sağlık turizminin küresel önemi ve araştırma eğilimleri hakkında fikir vermeyi amaçlamaktadır.
Tasarım/Yöntem: Web of Science veri tabanından elde edilen 119 yayını kapsayan çalışma, yayın türü, dili, dergileri, atıf eğilimleri gibi konulara odaklanmaktadır.
Bulgular: Araştırma, sağlık hizmetlerinin küreselleşmesi, sağlık bilincinin artması ve uygulanan neoliberal politikalarla birlikte 2000'li yıllardan itibaren yayın sayısında da artış olduğunu ortaya koymaktadır. Yayınların çoğunluğunun İngilizce dilinde olması, Türkiye’deki sağlık turizmi araştırmalarının küresel öneminin altını çizmektedir.
Sınırlılıklar: Örneklemde Web of Science veri tabanında bulunan sağlık turizmi anahtar kelimelerdeki yayınların kullanılması araştırmanın sınırlılıklarıdır.
Özgünlük/Değer: Bu çalışma, Türk sağlık turizmi araştırmalarına, bu araştırmaların küresel önemine ve sürdürülebilir kalkınma ve sağlık hizmetlerine potansiyel katkılarına ilişkin en güncel bilgiler sunmaktadır.
IMPROVING THE ENERGY EFFICIENCY OF CONTAINER STACK ASSEMBLY-DISASSEMBLY OPERATIONS AT CONTAINER TERMINAL YARD
Authors: Kovalenko Valentyn , Turchyn Olha , Alieksieiev Volodymyr , Stryzhak Vsevolod , Strelkov Maksym , Poliakov Oleksii
Published: November 2024

Container storage in the yard decouples fluctuating incoming and outgoing container flows on container terminals and is an important element of the terminal process chain. The efficiency of handling operations in storage area, such as stacking and extraction of containers, has a significant influence on the overall terminal performance. In this respect, optimization of these processes, such as minimization of numerous unproductive movements of surrounding containers, which impede their immediate accessibility, is of particular interest. The relevant problems are well developed in mathematical terms. Optimizing algorithms mainly involve the use of heuristic/hyper-heuristic rules. However, only a small amount of this work focuses on the energy aspect of this problem. This article focuses on the most general approaches to minimizing energy consumption in container stacking operations. The performed analysis of energy consumption of the yard RTG crane for different working movements showed the prevalence of energy consumption when lifting containers. In this regard, attention is drawn to the importance of including in the optimization analysis in addition to the process of retrieving containers from the stack - the process of stack formation. Minimizing the level of the stack's center of gravity just before disassembling can be considered as a goal. Due to the complexity of the problem, an attempt to simplify the rules of container placement is made, taking into account some features of the energy approach. A possible generalized version of the arrangement scheme and the rule of removal of all containers are considered.
CHOICE OF THE PNEUMATIC DRIVE BRAKING METHOD AND SCHEME ENSURING THE SET PARAMETERS OF THE TRANSIENT PROCESS
Authors: Krutikov Hennadii , Stryzhak Mariana , Borodin Dmytro
Published: November 2024

The article presents a method for selecting the principle of braking (control) for a pneumatic drive, the braking scheme, and the control maps of pneumatic distributors. These choices provide the most rational form of the transient process in the drive, aligning with the kinematic requirements of the control object. The paper also discusses the specifics of computer modeling of processes in a pneumatic drive with braking achieved by altering the structure of commutation links. This approach allows for the determination of the optimal braking distance during the calculation process. A distinctive feature of the proposed method is that, in addition to ensuring a rational form of the transient process, it significantly reduces compressed air consumption.
ENERGY BALANCE OF THE TRACTOR-TRANSPORT TRAIN
Authors: Koliesnik Ivan , Kalinin Evgeny , Koliesnik Yuliana , Pankova Oksana
Published: November 2024

The article presents dynamic dependencies that substantiate the power and energy parameters of the tractor-transport train movement in the range of transport works with different road surfaces, which experimentally and analytically substantiate the possibility of using energy-rich tractors in transport works, with an increase in the efficiency of the use of the tractor-transport train.
The optimization of the object of scientific and experimental research is intended for the clear definition and further assignment of blocks of research, which represent a general program concept divided into solving private tasks on the developed structural scheme.
Per Perbedaan Subtitusi Tepung Kacang Koro Pedang (Canavalia Ensiformis) pada Bakso Daging Analog Terhadap Kualitas Inderawi Kesukaan dan Kandungan Protein
Authors: Kisworo Firstia Artisantika , Saptariana  , Bambang Sugeng Suryatna  , Octavianti Paramita
Published: November 2024

In this research, the use of jack beans will be used as an ingredient in making analog meatballs, in order to determine the sensory quality, preferences and protein content of analog meatballs. The aim of this research was to find out the differences in sensory quality, people's preferences and the nutritional content of protein contained in analog meatballs substituted for jack bean flour with percentages of 0%, 10%, 20% and 30%. The experimental design uses a single factor completely randomized design (CRD) experimental design. The data collection method for testing people's preferences uses 80 untrained panelists and is analyzed using the mean. The protein content test was carried out using the Kjeldahl method in the laboratory. The highest results in the sensory test showed a score of 4.1 in the texture aspect, 4.2 in the aroma aspect, 4.5 in the taste aspect, and 4.3 in the flavor aspect. The highest people's liking test results were in the texture aspect of 4.5 (liked), the aroma aspect was 4.03 (somewhat liked), the taste aspect was 4.13 (somewhat liked), and the color aspect was 4.08 (somewhat liked). The test results for the protein content of meat basko analog substitute for jack bean flour without treatment (100%:0%) were 17.46%, samples with 10% treatment produced 22.39%, with 20% treatment produced 25.36% and with 30% treatment resulted in 28.32%. Conclusions based on the test results of the preference for meatballs substituted with jack bean flour had the criteria of liking to somewhat liking, and the protein content increased along with the addition of the percentage of jack bean flour.
Development of Bontang City Typical White Bread Food Products with the Use of Mackerel Tuna Fish (Euthynnus affinis) Broth on White Bread Quality
Authors: Chudori Zulfiqo Ilham , Nunung Nurjanah
Published: November 2024

The development of white bread food products using mackerel tuna fish broth is a variation of innovation to produce a good nutritional value of animal protein. This research method uses experimental research methods. This research was conducted using a completely randomized design (CRD) to see differences in texture, aroma, taste, water content, and development of white bread added to mackerel tuna fish broth by 36%, 42%, and 48%. Each treatment has two repetitions, followed by physical tests (white bread development volume), hedonic tests (texture, taste, and aroma), and chemical tests (water content). The data obtained were analyzed statically using the ANOVA test, then continued with the DMRT (Duncan’s Multiple Range Test) test if there were differences. The results research showed significant differences in the organoleptic hedonic properties, chemical tests, and physical tests of white bread development.
FORM OF PRESENTATION WORSHIP SONG AT HKKBP SUTOYO
Authors: Simanjuntak Clarissa Tessalonika
Published: November 2024

The purpose of this research is to describe the form of worship music reviewed in the arrangement that is present at HKBP Sutoyo Church. The research method used is qualitative with a descriptive approach. The results showed that the form of worship music at HKBP Sutoyo Church was mixed music in a band format using electric pianos, keyboards, electric guitars, electric basses, electric drums, and singing guides. Form of presentation in arrangement of worship music has variations in the processing of melodies in the musical accompaniment, processing of singing forms, use of chords and various progressions, use of sound effects, variations of beats and musical genres which can provide a different atmosphere in each worship song.
PRODUCTION MANAGEMENT OF VIRTUAL MUSIC PERFORMANCES OF THE BATAVIA CHAMBER ORCHESTRA
Authors: Komara Detania Febryanti
Published: November 2024

Abstract: This study aims to identify and describe the production management process for virtual music performances in student orchestras held during a pandemic. The object of this research is the production management of the Batavia Chamber Orchestra musical performance “Virtual Colourchestra”. The research method used is a descriptive qualitative method. This research was carried out for 14 months, from December 2021 – January 2023. Data was obtained using literature studies, interviews, and documentation studies. The data analysis technique used is data reduction, data presentation, and data verification. In testing the validity of this research data using a triangulation technique carried out with a research expert, namely Airin Efferin. The results of this study indicate that the production management of virtual music performances performed by a student orchestra, namely the Batavia Chamber Orchestra, is following the principles and 4 management functions including planning, organizing, leading, and controlling. The Covid-19 pandemic has not only made music performances change in their presentation but also changes in terms of management.
Features of the Stress State of Composite Reinforcement during Tensile Tests
Authors: Barsukov V. G. , Lezhava A. G. , Evseeva E. A.
Published: November 2024

The purpose of the work is to establish the characteristics of the stress state of composite building reinforcement during tensile tests, caused by errors in the centering of the composite rod when installed in anchor couplings. A calculation scheme and a corresponding differential equation describing the stress-strain state of the rod have been compiled. Analytical dependencies were obtained to determine the bending moment and the stresses caused by it. A calculation estimate of bending stresses was made in comparison with the nominal tensile stresses of the rod. It is shown that bending stresses are unevenly distributed along the length of the rod and reach their highest values near the ends of the test couplings. Bending stresses increase in proportion to the eccentricity of the installation of the rod in the test anchor couplings and decrease with increasing length of the rod working part. Using the example of fiberglass reinforcement with a nominal diameter of 6 mm, manufactured in accordance with СТБ (STB) 1103–98, a calculation estimate of these stresses was made for a wide range of changes in the eccentricity of the composite rod in the anchor couplings location and the length of the working part of the test sample. It is shown that the use of short samples should be accompanied by an increase in the accuracy of rod centering in test anchor couplings. A method convenient for engineering calculations is proposed for determining bending stresses and total stresses in a composite rod. The research results can be used in engineering practice and in the educational process when training specialists in construction and chemical technology.
Dispersion-Reinforced Semi-Rigid Materials Based on Asphalt Binders
Authors: Bezoyan K. E. , Chystova T. A.
Published: November 2024

Rehabilitation of deteriorated asphalt concrete pavements is an important task for the road industries in many countries. Roads built earlier with non-rigid road surfaces cannot cope with the growth of transportation load. Therefore, asphalt-cement composites of various compositions are widely used in the practice of road construction. In the article several variants of obtaining asphalt-cement composites are proposed. Several compositions based on asphalt granulate were selected for  the experiment. Rubber crumb additive was introduced into bitumen in order to obtain an elastic transition zone due to the deformative properties of rubber particles reinforcing the asphalt binder. As reinforcement of the semi-rigid material, we used dispersed fibers of flax, cellulose and an additive in the form of a solution of polyvalent metal salts capable of creating additional structural bonds in the transition zone between the cement stone and the asphalt-binder. Experimental studies have shown a decrease in the angle of internal friction, which confirms the high stability of deformation without breaking the continuity of dispersed-reinforced material from asphalt granulate in a wide range of transport loads. Compositions with rubber crumb and linen fiber showed the best deformative qualities and resistance to repeated loads. The addition of crumb rubber modifies the bitumen film, and particles of undissolved rubber increase the elasticity of the material. Due to this, at rather large deformations (0.98 mm) and multiple loading, the stability of the samples is preserved (fracture work is 3.80 J). The introduction of linen fiber, which has high tensile strength and increased stiffness, allows to reinforce the transition layer in such a way that at sufficiently high strains (0.73 mm) and high work of destruction (2.69 J) the material remains stable. The resulting material can be used in load bearing areas.
Punching Metal Protective Screens Based on Elements Made of Rolled Sheets and Half Pipes
Authors: Pribylskaya N. M. , Grechukhin V. A.
Published: November 2024

The object of the study is new design solutions for metal protective screens based on elements made of rolled sheets, half-pipes and guide pipes. Metal protective screens are used in the construction of underground transport structures  using a closed method. The protective screen prevents deformations and subsidence of the surface of overlying soil layers, road and railway bed. During the construction of tunnel-type structures under existing transport communications, the conditions for the safe operation of roads and railways must not be violated. In this case, special attention is paid to subsidence of the overlying soil layers. The magnitude of subsidence affects the possibility to operate roads and reduce the speed or completely stop traffic on the railway. Therefore, the stress-strain state of the proposed metal protective screens was studied using a calculation model developed on the basis of the finite element method. To improve the accuracy of calculating internal for-ces on punching individual structural elements of a metal protective screen, the Romberg method was used. The proposed designs and technologies of protective screens retain the advantages of those currently used, while simultaneously reducing the costs of constructing a protective screen, since the design solutions under study require less effort to push through indivi-dual elements, and, as a consequence, use less powerful equipment. Calculations of the stress-strain state of the proposed designs of protective screens have shown their viability. As a criterion for checking the operability, the maximum stresses perceived by individual parts of the structures were considered; they do not exceed the yield strength of the selected steel, and the maximum vertical and horizontal displacements of individual parts of the screens were calculated, which do not exceed those specified in the requirements of the Rules for Technical Operation of Railways in the Republic of Belarus and the Instructions for Current Maintenance of Railway Tracks in the Russian Federation. This confirms the operability of the proposed metal protective screens.
Complex biochemical blood tests in assessing the state of the prooxidant-antioxidant system of the body of professional drivers of urban vehicles: monograph
Authors: Pozdniakova M.A. , Zhukova E.S. , Umnyagina I.A.
Published: November 2024

The monograph presents the results of many years of scientific research, united by a common ultimate goal, namely: the development of a scientific justification for a set of measures aimed at preventing diseases caused by the negative effects of road transport. The results of the conducted information search are presented as a literary review on the topic, as well as materials from our own biochemical studies, which show new possibilities for the application and interpretation of a complex of biochemical, morphological and genetic markers of blood to determine the state of the prooxidant-antioxidant system of the body. Its violation, in turn, can become a trigger pathogenetic mechanism of oxidative stress and all the pathological consequences resulting from it: diseases and their possible complications. The description of the features of the crystal formation of blood plasma facies of professional drivers and the assessment of the genotoxicity of their professional environment using the DNA comet method is given.

The publication is addressed to a wide range of readers: researchers, students and university professors, residents and graduate students, employees of medical organizations — in the field of «medical biochemistry, occupational medicine, preventive medicine — as medical sciences».

The authors declare the absence of a potential conflict of interest and the need to disclose it in the material.
Magnetic properties of agricultural soils and their relationships with environmental factors in Jinghong, Yunnan, China
Authors: Wang Meichen , Li Haixia , Li Shiyu , Chen Yudong , Li Gangqiang
Published: November 2024

Environmental magnetism, with its advantages of speed, sensitivity, cost-effectiveness, and harmlessness, has extensive applications in various fields such as environmental science, climate research, and soil science. However, studies on the magnetism of agricultural are limited. This study conducted magnetic investigations on 21 agricultural soil profiles (including farmland and tea plantations) and 6 adjacent natural soil profiles (forestland) in the southwestern subtropical region of China. By analyzing and comparing the soil magnetic characteristics of natural soil and agricultural soil profiles and using the structural equation model, the influencing factors of soil magnetism in different soil layers (0-70cm and 70-140 cm) were determined. This study revealed that soil magnetic susceptibility is influenced by soil organic carbon (SOC), drainage conditions, and weathering intensity. In the 0–70 cm soil layer, SOC and drainage conditions were the primary factors affecting soil magnetism. The differences in soil drainage conditions result in variations in dry–wet cycling patterns, which, along with the influence of SOC on the formation and transformation of magnetic minerals in redox alternations, affects soil magnetic susceptibility. In the 70–140 cm soil layer, weathering intensity was the primary factor influencing soil magnetism.
Resilience Measurement for Environmental Shocks and Stressors: Scale Development and Validation for Urban Areas in Low- and Middle-Income Countries
Authors: Oza Hemali H. , Salinger Allison P. , Taruc Ruzka , Tela Autiko , Barker Fiona S. , Leder Karin , Freeman Matthew C. , Clasen Thomas , Sinharoy Sheela
Published: November 2024

Climate change and weather-related hazards, such as droughts and floods, pose substantial threats to the human health and well-being, especially for those in low-income households and informal settlements. Resilience, defined as the ability to cope, adapt, and recover, is critical for communities to manage these evolving threats. While there has been increased interest in ensuring that programming contributes to resilience, the lack of valid and user-friendly resilience measurement tools limits the evidence base on the effectiveness of interventions to do so. We developed scales to measure economic, environmental, and social resilience to environmental shocks/stressors among urban informal settlements in low- and middle-income countries. Using an evidence-based conceptual framework, we collected data from 882 households in coastal informal settlements in Makassar, Indonesia and Suva, Fiji. We used factor analysis and item response theory approaches and assessed scale validity, reliability, and measurement equivalence. Results indicated good model fit and measurement equivalence for the economic and social resilience scales; we recommend refinement of the environmental scale. We recommend using the economic and social resilience scales in monitoring and evaluating resilience-building programs and policies for urban households in low-income settings.
Study on Denitration Performance and Mechanism of NH3-SCR Catalyst for Modification of Rare Earth Tailings by Ce
Authors: Li Jiaming , Wang Tiantian , Wu Wenfei , Qie junmao , Hou Limin
Published: November 2024

The NH3-SCR method is the most commonly employed technique for the removal of NOx. Minerals comprise a diverse range of metallic elements, which exhibit a natural synergistic catalytic effect when applied in denitrification processes. This phenomenon highlights their potential for use in this field of study. Rare earth tailings were modified using Ce via the hydrothermal method. The impact of Ce modification was studied through XRD, BET, SEM-EDS, XPS, NH3-TPD, H2-TPR, XPS, and in situ DRIFTS analyses.The denitrification efficiency and N2 selectivity of 7.5% Ce/rare earth tailings were 83% and 90%, respectively, as demonstrated by the results. The reaction temperature window was widened, ranging from 250 to 425 ℃. With a porosity of 20 nm and a specific surface area of 28 m2/g, the catalyst is predominantly mesoporous,, and active components Ce and Fe were highly dispersed. The synergistic effect between Ce and Fe with reaction Ce4++Fe2+→Ce3++Fe3+, increasing oxygen vacancies, acidic sites and acid activity intensity. Brønsted acidic sites were the key factor for increasing activity. Catalysts of rare earth tailings modified by Ce followed both of E-R and L-H type mechanisms. NH3 absorbed on Brønsted acid site and Lewis acid site, -NH3 and -NH2 formed form NH4+, reacting with NO to form the intermediate species NH3NO and NH2NO. NO2- species react -NH3 and -NH2 forming NH3NO and NH2NO.
An analytical study for predicting incipient motion velocity of sediments under ice cover
Authors: Luo Hongchun , Ji Honglan , Chen Zijian , Liu Bin , Xue Zhongshu , Li Zhijun
Published: November 2024

This study investigates the critical impact of incipient sediment motion on sediment transport estimation and riverbed evolution prediction. In this research, we examine the effects of ice cover on the vertical distribution of flow velocity, establishing a mathematical relationship between the vertical average flow velocities in open channel and ice-covered flows. This leads to the derivation of a formula for incipient motion velocity under ice cover. Additionally, the study analyzes the riverbed evolution process under ice jam conditions. The proposed formula is applicable to both open channel and ice-covered flows, effectively capturing the characteristics of incipient sediment motion for non-cohesive and cohesive sediments. The calculated incipient motion velocities closely align with the empirical data from existing literature. The study reveals that the roughness of ice cover significantly influences the incipient motion velocity of sediment, with higher ratios of ice cover roughness to riverbed roughness promoting sediment initiation under more favorable hydraulic conditions. Furthermore, the riverbed beneath ice jams experiences significant scouring. Field observations indicate that when ice jams form in localized sections of the river, the displacement of the main flow can substantially increase flow velocity in areas away from the ice jam, leading to scouring in non-ice-jammed areas and sedimentation in ice-jammed areas. The uneven distribution of ice jam is likely a critical factor contributing to discrepancies between theoretical predictions and observed outcomes. The complexity and limited data associated with the initiation of cohesive sediments pose challenges in validating the proposed formula for these sediment types.
Real-time Plasma Diagnostic Tool for the investigation of Azimuthal Rotating Instabilities in Hall Effect Thrusters
Authors: Masi L. , Presi M. , Matteo A. , Dancheva Y. , Scortecci F. , Coduti G. , Piragino A. , Vial V.
Published: November 2024

The following paper reports about a non-intrusive diagnostic system able to measure the frequency of azimuthal instabilities inside the discharge channel of Hall Effect Thrusters (HETs) up to several hundreds of kHz in a real-time fashion.The innovative optical assembly, formed by an optimized sensor array, can help to drastically reduce the amount of processed data and the size of the opto-electronic front-end. The performances of the diagnostic system have been tested successfully during several tests on a HET in different regimes, showing an accuracy and reliability comparable with the state-of-the-art video recording methods. The high compactness of the developed sensor array opens new possibilities to perform simultaneously multi-channel or species-selective real-time measurements, while the reduced electronics and power consumption pave the way to miniaturized tools for on-flight diagnostics.
An Energy-Aware Combinatorial Contextual Neural Bandit Approachfor Joint Performance Optimization in Client Selection for Federated Learning
Authors: Ma Xiangyu , Shi Wei , Wen Junfeng
Published: November 2024

In the evolving landscape of machine learning (ML), federated learning (FL) stands out as an innovative strategy for training models across dispersed devices without centralizing raw data. Such an approach, however, grapples with data heterogeneity challenges, violating the independent and identically distributed (IID) assumption and undermining the global model accuracy. To address this, we present federated adversary-resilient neural selector (FANS), a sophisticated context-aware client selection algorithm, leveraging a combinatorial contextual neural bandit framework. This algorithm accentuates the enhanced extraction of contextual information by evaluating each local client with a universally standardized dataset, subsequently yielding a more insightful contextual representation tailored for federated settings. Additionally, we further address another crucial aspect of client selection — energy consumption. Considering this key factor along with the global accuracy jointly, greatly increase the adaptability of FL in real-world applications. We then introduce the Selection Robustness Score (SRS), a novel metric designed to quantify the efficacy of client selection under both adversarial and energy-constrained conditions. Using this metric, we demonstrate FANS’s effectiveness in enhancing the FL process. Empirical evaluations across diverse settings reveal our method’s superiority over current state-of-the-art solutions, with significant improvement in the SRS and energy conservation.
Effect of Biochar on silica content and metabolomics against insect pests and mites of bhendi
Authors: Periyakaman Chandramani , Ashok Nithish Kumar , Pandian Kannan , Govindarajan Selvakumari
Published: November 2024

Metabolomic profiling was done as a measure of confirmation of induced host plant resistance in the biochar applied bhendi plants. The results revealed that the sugar derivatives, inositol and fucose- meto were high with peak area of 0.14% and 4.06% respectively in the biochar treated leaves and they were absent in the untreated leaves. Among the fatty acids, docosahexaenoic acid, decadienedionic acid and eicosanedioic acid were present only in biochar treated leaves of bhendi. Seven silicone compounds were also detected in the GC-MS/MS analysis with total peak of 1.78% in the treated leaves. Similarly among the alcoholic compounds, benzyl alcohol is present only in the biochar treated leaves with peak area of 0.34%. The only organic acid phthalic acid, 2-propylphenyl tetradecyl ester was observed in the treated leaves of bhendi with peak area of 0.10%. The highest mean silica content was also recorded in the biochar treated plants which was negatively correlated with insect pests. Hence it is clearly proved that biochar induced silica and metabolites in bhendi significantly reduced key insects and mites and enhanced the pod yield.