bluuebunny/crossref_metadata_2025_split huggingface dataset:
Локальные физико-химические свойства наночастиц
Authors: Гришин М.В. , Гатин А.К. , Дохликова Н.В. , Озерин С.А. , Сарвадий С.Ю. , Слуцкий В.Г. , Харитонов В.А. 
Published: December 2024

Процессы взаимодействия газообразных реагентов с образованными из наночастиц металлов покрытиями, нанесенными на пиролитический графит, исследованы методами сканирующей туннельной микроскопии и спектроскопии. Показано, что физические и химические свойства области контакта наночастиц с подложкой и области наиболее удаленной от нее могут различаться. Одной из причин наблюдаемых эффектов является перенос электрического заряда между наночастицами и подложкой.
The processes of interaction of gaseous reagents with coatings formed from metal nanoparticles deposited on pyrolytic graphite have been studied by scanning tunneling microscopy and spectroscopy. It is shown that the physical and chemical properties of the area of contact of nanoparticles with the substrate and the area furthest from the first one may differ. One of the reasons for the observed effects is the transfer of electric charge between the nanoparticles and the substrate.
DFT-моделирование адсорбции водорода на нанесенных на графит наночастицах никеля, платины и палладия
Authors: Руденко Е.И. , Дохликова Н.В. , Гатин А.К. , Гришин М.В. 
Published: December 2024

Проведено DFT-моделирование адсорбции водорода на наночастицах Ni, Pt и Pd на графите. Рассчитывались энергии связи 13-атомных металлических кластеров на графите с различными дефектами с атомарным водородом. Исследовалось изменение плотности состояний атомов металлов при взаимодействии с этим адатомом. Платиновый кластер имеет наиболее активную вершину. Для палладиевого и никелевого кластеров вся поверхность реакционноспособна. Все приведенные выше выводы согласуются с результатами экспериментальных исследований.
DFT modeling of hydrogen adsorption on Ni, Pt and Pd nanoparticles on graphite has been performed. The binding energies of 13-atomic metal clusters on graphite with various defects with atomic hydrogen were calculated. The change in the density of states of metal atoms during interaction with this atom was studied. The platinum and nickel clusters has the most active top. For a palladium and nickel clusters, the entire surface is reactive. All the above conclusions are consistent with the results of experimental studies.
Закономерности процесса получения парадихлорбензола прямым хлорированием бензольного кольца. Обзор
Authors: Ковалева Н.Ю. , Шиянова К.А. , Шаповалова О.В. , Трегер Ю.А. 
Published: December 2024

Парадихлорбензол (п-ДХБ) является важным химическим веществом с широким спектром применения от фумиганта и антисептика до основного сырья для производства ценного пластика полифениленсульфида. Синтез п-ДХБ осуществляется хлорированием бензола. Это сложный процесс, который предполагает применение различных типов технологических реакторов, температурных режимов и катализаторов. Одним из наиболее важных аспектов синтеза п-ДХБ является выбор катализатора. В обзоре рассмотрены преимущества и недостатки различных катализаторов. С целью улучшения селективности процесса по отношению к п-ДХБ было проведено много исследований, обобщение и анализ которых представлены в предлагаемой статье. Обсуждаются возможные механизмы каталитических реакций. В обзоре также рассматриваются проблемы выделения п-ДХБ из реакционной массы с описанием основных технологических приемов, используемых для преодоления этих трудностей. Показано, что оптимизация параметров процесса получения п-ДХБ имеет решающее значение для повышения эффективности его синтеза и снижения себестоимости производства.
Paradichlorobenzene (p-DCB) is an important chemical with a wide range of uses from fumigant and antiseptic to a key raw material for the production of valuable plastic polyphenylene sulfide. The synthesis of p-DCB is carried out by chlorination of benzene. This is a complex process that involves the use of various types of process reactors, temperature conditions and catalysts. One of the most important aspects of p-DCB synthesis is the choice of catalyst. The review examines the advantages and disadvantages of various catalysts. In order to improve the selectivity of the process with respect to p-DCB, many studies have been carried out, a summary and analysis of which are presented in this article. Possible mechanisms of catalytic reactions are discussed. The review also discusses the problems of isolating p-DCB from the reaction mass with a description of the main technological methods used to overcome these difficulties. It has been shown that optimization of the process parameters for the production of p-DCB is crucial for increasing the efficiency of its synthesis and reducing production costs.
СОВРЕМЕННОЕ СОСТОЯНИЕ ЯЗЫКОВОЙ ЧАСТИ СЛОЖНОГО ДОЛИННОГО ЛЕДНИКА МИЖИРГИ
Authors: Залиханов М.Ч. , Акшаяков З.Т. , Курашева О.А. 
Published: December 2024

Представлена оценка современного состояния некоторых параметров языковой части сложного долинного ледника Мижирги, расположенного в бассейне реки Черек Безенгийский. Актуальность: ледник Мижирги относится к пульсирующим ледникам. Тыловая часть Мижирги напоминает цирк ледника Колка. В связи с чем необходимо вести систематические наблюдения за этим ледником. Цель работы: оценка современного состояния и характеристики темпов деградации языковой части ледника Мижирги. Методы исследования: в полевых условиях были проведены топографические съемки на языковой части ледника с использованием тахеометра LEICAFlexLineTS09, спутникового прибора Leica GS14 GSM+Radio, SOUTH G6, Garmin* GPS Map 60Cx. Исследования проводились в 2021-2022 гг. и охватили территорию языковой части ледника вглубь около одного километра. Результаты: представлены результаты измерений и подсчетов, проводимые на языковой части ледника Мижирги за 2021 и 2022 гг. Площадь исследуемого участка на языке ледника Мижирги составила 0,2687 и 0,3327 км2 за 2021 и 2022 гг., соответственно. Площадь отступившей части ледника за указанный период составила 19156 м2. Длина отступившей части ледника за год составила Max - 64 м и Min - 21 м.
An assessment of the current state of some parameters of the complex valley glacier Mizhirgi, located in the basin of the river Cherek Bezenghi is presented. Relevance - the Mizhirgi glacier belongs to pulsating glaciers. The rear part of the Mizhirga glacier resembles the cirque of the Kolka glacier. Therefore, it is necessary to conduct systematic observations of this glacier. The aim of the work is to assess the current state and characterize the degradation rates of the lingual part of the Mizhirga glacier. Research methods - topographic surveys of the lingual part of the glacier were carried out in the field using LEICA Flex Line TS09 total station, Leica GS14 GSM+Radio, Garmin* GPS Map 60Cx. The research was conducted in 2021-2022 and covered the territory of the tongue part of the glacier about one kilometer deep. Results of work - the results of measurements and calculations carried out on the tongue part of the Mizhirgi Glacier for 2021 and 2022 are presented. The area of the studied area on the tongue of the Mizhirgi Glacier amounted to 0.2687 and 0.3327 km2 for 2021 and 2022, respectively. The area of the retreated part of the glacier for the mentioned period amounted to 19156 m2. The maximum length of the retreated part of the glacier for the year was Max-64 m and Min-21 m.
БЕСПИЛОТНЫЕ ЛЕТАТЕЛЬНЫЕ АППАРАТЫ В СОВРЕМЕННЫХ ВООРУЖЕННЫХ КОНФЛИКТАХ (история, основы применения)
Authors: Алайчиев У.К. 
Published: December 2024

В статье рассматриваются основы применения, исторический анализ и методологические предпосылки создания беспилотных летательных аппаратов (БПЛА) в современных вооруженных конфликтах. Приведены формы, методы и классификации БПЛА с анализом их использования, основных проблемных вопросов и возможных решений. В статье рассматриваются основы применения и исторический анализ, методологические предпосылки формирования беспилотных летательных аппаратов (БПЛА) в современных вооруженных конфликтах. Приведены формы, способы и классификации БПЛА, дается анализ их применения, основные проблемные вопросы и возможные пути их решения. Так же, в ней изложены определение и основные задачи БПЛА становлении, подготовке, всестороннем обеспечении и боевом применении системы беспилотных летательных аппаратов военной организации государства. Кроме того, статья раскрывает применение БПЛА вооруженными силами иностранных государств, незаконными вооруженными формированиями, как в мирное, так и в военное время.
Макалада колдонуунун негиздери жана тарыхый талдоо, заманбап куралдуу кагылышууларда учкучсуз учуучу аппараттарды (УУА) түзүүнүн методологиялык өбөлгөлөрү каралат. УУАдын формалары, ыкмалары жана классификациялары келтирилген, аларды колдонуунун анализи, негизги көйгөйлүү маселелер жана мүмкүн болгон чечимдер берилген. Макалада заманбап куралдуу кагылышууларда учкучсуз учуучу аппараттардын (УУА) пайда болушунун негиздери жана тарыхый анализи, методологиялык өбөлгөлөрү каралат. УУАнын формалары, ыкмалары жана классификациялары келтирилген, алардын колдонулушун талдоо, негизги көйгөйлүү маселелер жана аларды чечүү жолдору берилген. Ошондой эле, ал мамлекеттин аскердик уюмунун учкучсуз учуучу аппараттар системасын түзүү, даярдоо, ар тараптуу камсыз кылуу жана аскердик колдонуу боюнча УУАнын аныктамасын жана негизги милдеттерин аныктайт. Мындан тышкары, макалада тынчтык жана согуш мезгилинде да чет мамлекеттердин куралдуу күчтөрүнүн, мыйзамсыз куралдуу түзүлүштөрдүн УУАны колдонуусу ачыкка чыгат.
The article discusses the basics of application and historical analysis, methodological prerequisites for the creation of unmanned aerial vehicles (UAVs) in modern armed conflicts. The forms, methods and classifications of UAVs are presented with an analysis of their use, the main problematic issues and possible solutions. The article discusses the basics and historical analysis, methodological prerequisites for the emergence of unmanned aerial vehicles (UAVs) in modern armed conflicts. The forms, methods and classifications of UAVs are listed, an analysis of their application is given, the main problematic issues and ways to solve them. It also defines the definition and main tasks of UAVs for the creation, training, comprehensive support and combat use of unmanned aerial vehicle systems of the military organization of the state. In addition, the article reveals the use of UAVs by the armed forces of foreign states, illegal armed formations, both in peacetime and in wartime.
Kesenian Tambua Tansa Sebagai Wadah Kreativitas Anak Jorong Tanjung Sani Kecamatan Tanjung Raya Kabupaten Agam Sumatera Barat (Tambua Tansa Arts as a Place for Children's Creativity in Jorong Tan-jung Sani, Tanjung Raya District, Agam Regency, West Sumatra)
Authors: Minanda Arsyilla , Hendri Yon 
Published: December 2024

Minangkabau adalah salah satu etnis di Indonesia yang memiliki berbagai macam pertunjukan tradisional, salah satunya ialah Tambua Tansa. Tambua dan Tansa merupakan alat musik tradisional kesenian khas dari Ranah Minang. Khususnya di Jorong Tanjung Sani, Nagari Sungai Batang, Kecamatan Tanjung Raya, Kabupaten Agam, Sumatera Barat. Penelitian ini bertujuan untuk mengetahui bagaimana bentuk pertunjukan Tambua Tansa dan Bagaimana Anak Nagari dapat berkreatifitas dalam pertunjukan musik Tambua Tansa di Jorong Tanjung Sani, Nagari Sungai Batang, Kecamatan Tanjung Raya, Kabupaten Agam, Sumatera Barat. Penelitian ini dilakukan dengan menggunakan metode kualitatif deskriptif yang mana dalam metode tersebut disertai dengan beberapa Teknik seperti pengumpulan data, wawancara, studi Pustaka, serta dokumentasi sebagai bukti dalam melakukan penelitian. Pada kesenian Tambua Tansa juga memiliki beberapa bentuk penyajian dan terdapat beberapa unsur antara lain: Kostum pemain Tambua Tansa, Alat yang dimainkan pemain Tambua Tansa. Pola kreasi dalam memainkan Tambua Tansa, dan Orang yang terlibat dalam penyajian kesenian Tambua Tansa. ABSTRACTMinangkabau is one of the ethnic groups in Indonesia, which has various kinds of traditional performances, one of which is Tambua Tansa. Tambua and Tansa, are traditional artistic musikal instruments typical of Ranah Minang. Especially in Jorong Tanjung Sani, Nagari Sungai Batang, Tanjung Raya District, Agam Regency, West Sumatra. This study aims to find out the form of Tambua Tansa performances and how village children can be creative in Tambua Tansa musik performances in Jorong Tanjung Sani, Nagari Sungai Batang, Tanjung Raya District, Agam Regency, West Sumatra. This research was conducted using a descriptive qualitative method in which the method was accompanied by several techniques such as data collection, interviews, library research, and documentation as evidence in conducting research. The art of Tambua Tansa also has a form of presentation, there are several elements, including research locations for Tambua Tansa art, costumes for Tambua Tansa players, tools played by Tambua Tansa players. Patterns of creation in playing Tambua Tansa, and people involved in presenting Tambua Tansa art.
Role of Slag Replacement on Strength Enhancement of One-Part High-Calcium Fly Ash Geopolymer
Authors: Intarabut Darrakorn , Sukontasukkul Piti , Phoo-ngernkham Tanakorn , Hanjitsuwan Sakonwan , Sata Vanchai , Chumpol Poopatai , Sae-Long Worathep , Zhang Hexin , Chindaprasirt Prinya 
Published: December 2024

This paper reports the effect of slag (SL) replacement and water-to-binder (w/b) ratio on properties of one-part geopolymer derived from high-calcium fly ash (FA) and sodium silicate powder (NP). The FA was replaced by SL at the rates of 20% and 40%, respectively. This study focused on conducting experimental tests to evaluate the relative slump, setting time, compressive strength, and flexural strength of one-part FA-based geopolymer. The relationship between compressive and flexural strengths of one-part geopolymer mortar was expressed using the simplified linear regression model, whereas the normalization of compressive and flexural strengths with SL replacement by the strength of one-part geopolymer mortar without SL as the divisor was also evaluated. Experimental results showed that the increase of SL replacement and w/b ratio significantly affected the workability and strength development of one-part geopolymer mortar. Higher SL replacement exhibited a positive effect on their compressive and flexural strengths; however, a reduction in its setting time was obtained. The enhancement in strength development of one-part geopolymer was primarily due to the increased calcium content of SL. Similarly, reducing the w/b ratio in the production of one-part geopolymer resulted in a decrease in setting time and an increase in strength development. Based on the relationship between compressive and flexural strengths, the prediction coefficient value (R2) obtained from the curve fitting procedure was 0.835, indicating a good level of reliability and acceptability for engineering applications. Doi: 10.28991/CEJ-SP2024-010-013 Full Text: PDF
Toward an Ontology of Peace I
Authors: Gregor Brian 
Published: December 2024

This essay is the first of two seeking to draw out an ontology of peace from Paul Ricoeur’s thought. This first essay (Part I) argues that Ricoeur’s hermeneutics of creation provides the best starting point because of its insistence on the goodness of created being. Ricoeur develops this conviction from his reading of the biblical creation accounts, which I follow through three texts from three periods of Ricoeur’s work. In The Symbolism of Evil, Ricoeur show that peace rather than violence is most fundamental to creation. In his essay “On the Exegesis of Gen 1:1-2:4a,” he expands his interpretation to consider the combat imagery in the Psalms, but shows how the text interprets the separation and ordering of creation as a work of providential wisdom rather than violence. In Thinking Biblically, Ricoeur complicates his earlier hermeneutics of creation by bringing in themes of mastery, chaos, and fragility—three themes that need careful interpretation in order to preserve Ricoeur’s earlier emphasis on the goodness and peacefulness of creation. This preservation is possible, I argue, by recovering Ricoeur’s early Christological reflections in The Symbolism of Evil, which point to the hope of an ultimate, eschatological victory over violence. I conclude by arguing that Ricoeur’s hermeneutics can help us to imagine peace, which is crucial to the practice of peace.
Black LGBTQIA+ Political Subjectivities in the Roma Negra: On Black LGBTQIA+ Political Resistance in Salvador, Bahia, Brazil
Authors: Jaimee Swift  
Published: December 2024

This article examines the politics of Black LGBTQIA+ political resistance against multiform violence in Salvador, Bahia, Brazil. Nicknamed the Roma Negra (Black Rome) due to having the second largest Black population in the world, Salvador, the capital city of the northeastern state of Bahia, has disproportionate rates of LGBTQIA+ violence. This article offers various case studies on how Black LGBTQIA+ activists and civil society and non-governmental organizations in Salvador politically organize, negotiate, and transform space, and combat non-citizenship and subordination since Brazil’s redemocratization.
Relationship between coping strategies and academic resilience of pupils with special needs in Kwara, Nigeria
Authors: Adedigba Olabisi , Olawuyi Bolanle Olabisi , Obimuyiwa Gabriel Ayodeji 
Published: December 2024

This study investigated the relationship between coping strategies and academic resilience among pupils with special needs in Kwara Central, Nigeria. A descriptive survey research design was adopted. The population was all children with special needs in primary and secondary schools of the State. The sample comprised 400 pupils with special needs purposely selected from 20 schools, both special and regular schools. Two data collection instruments used included the Coping Strategies Rating Scale (CSRS) and Pupils’ Academic Resilience Rating Scale (PARRS), validated for face and content validity and tested for reliability with coefficients of 0.82 and 0.85, respectively. Descriptive statistics of frequency, percentage, mean and standard deviation was used to analyse the two questions raised while inferential statistics of Pearson Product Moment Correlation (PPMC) was used to analyse the only hypothesis formulated at the 0.05 level of significance. The results revealed moderate levels of coping strategies (weighted mean = 2.40) and academic resilience (weighted mean = 2.44). The result also showed a strong a positive correlation between coping techniques and academic resilience (r-value is 0.713). These findings indicate the need to focus on building appropriate coping mechanisms to promote resilience in children with exceptional needs. Based on the findings, the study recommended teacher training, appropriate learning methodologies, and supporting school policies to increase children' adaptive capacities and boost academic resilience among children with exceptional needs.
HUBUNGAN KONSEP DIRI AKADEMIK DENGAN EFIKASI DIRI PADA SISWA SMA N 17 TEBO
Authors: Utami Sri , Rasimin Rasimin , Zubaidah Zubaidah 
Published: December 2024

This research aims to find out what academic self-concept, self-efficacy is and the relationship between academic self-concept and student self-efficacy at SMA Negeri 17 Tebo using quantitative methods through a correlational approach with Pearson Product Moment correlation analysis. This research took 84 respondents from SMA Negeri 17 Tebo students. The results of the research show that there is a relationship between academic self-concept and student self-efficacy at SMA Negeri 17 Tebo. The research results show a correlation of 0.610, which means the relationship can be categorized as a moderate correlation or a sufficient relationship. Based on this research, it is hoped that future researchers will study and deepen their insight into academic self-efficacy and self-concept so that they will be able to get better or maximum results. Apart from that, it is hoped that guidance and counseling teachers can provide encouragement in the form of trust and self-confidence in students to help improve good learning outcomes.
Unilateral hemicraniectomy with titanium cranioplasty for the treatment of high intracranial pressure in a pediatric patient with Camurati-Engelmann disease: illustrative case
Authors: Guillen Arguello Roboan , Sader Nicholas , McComb J. Gordon 
Published: December 2024

BACKGROUND
Camurati-Engelmann disease (CED) is an extremely rare autosomal dominant genetic disorder that can cause increased intracranial pressure (ICP) secondary to cranial hyperostosis, which decreases intracranial volume. Surgical procedures to reduce ICP in medically refractory cases include intracranial volume expansion and ventriculoperitoneal shunting.

OBSERVATIONS
The authors present the case of a pediatric patient with CED and medically refractory increased ICP who underwent unilateral hemicraniectomy with titanium cranioplasty, resulting in a complete long-term resolution of symptoms.

LESSONS
Unilateral hemicraniectomy with titanium cranioplasty is a feasible surgical treatment for CED in pediatric patients with medically refractory increased ICP and papilledema.
https://thejns.org/doi/10.3171/CASE24590
Optimasi Waktu Pelaksanaan Proyek Pembangunan Infrastruktur Gedung Dan Laboratorium Dengan Metode PERT dan CPM
Authors: Zamzami Ajud Kadlel , Hasyim Wachid , Suhana Nono 
Published: December 2024

Proyek merupakan suatu kegiatan usaha untuk mencapai tujuan akhir dengan segala batasan yang ada seperti waktu, kualitas, dan biaya. Penelitian ini bertujuan untuk melakukan optimasi jadwal proyek konstruksi menggunakan metode Critical Path Method (CPM) dan Program Evaluation and Review Technique (PERT) untuk menentukan jaringan kerja, kegiatan kritis, jalur kritis, dan menganalisis durasi maupun biaya yang optimal. Studi kasus dilakukan pada Proyek Pembangunan Power House menggunakan data sekunder dari lapangan. Berdasarkan data yang bersumber dari lapangan, diketahui bahwa durasi normal pada proyek tersebut diselesaikan selama 98 hari dengan total biaya sebesar Rp Rp1.618.398.310. berdasarkan hasil analisis dan kegiatan optimasi yang dilakukan menggunakan metode CPM dan PERT memberikan hasil berupa jalur kritis pada kegiatan P1, P2, P61, P66, P67, P68, P69, P70, P71, P72, P73, P74. Selanjutnya, perencanaan percepatan dilakukan sehingga menghasilkan waktu yang dipercepat hingga 84 hari. Durasi percepatan memiliki nilai probabilitas 62,5% untuk penyelesain proyek tersebut selama 84 hari serta dengan penambahan total biaya menjadi Rp1.621.197.326