bluuebunny/crossref_metadata_2025_split huggingface dataset:
Electrochemical machining with a variant cathode for aero-engine stator vanes
Authors: Zhou Xinqun , Zhu Dong , Jiao Erhao , Huang Hongxin , Chen Liyong 
Published: December 2024

Abstract

Stator vanes with dual-platform (inner and outer platform) structures are essential components of aero engines. Electrochemical machining (ECM) is a highly efficient, low cost and high-quality method of machining stator vanes. During ECM, the inner walls of the platforms (IWPs) of the stator vane are easily affected by stray currents, making it difficult to control the machining accuracy. In order to improve the IWP machining quality, an ECM method based on a variant cathode is proposed in this work. When ECM of stator vanes is performed using this method, the three parts of the variant cathode feed synchronously to the vane surface and IWPs respectively. A cathode cooperative motion device is designed for this machining method. The distribution of the current density and flow velocity in the machining gap is obtained through the simulation. The uniformity of current density in the machining area of the IWP is improved by 67.1% and increases the flow velocity of the electrolyte by 9% over those provided by the traditional method. Furthermore, the proposed method enhances the IWP concentrated dissolution capability and reduces the impact of stray currents, resulting in a 41.8% reduction in the taper angle of the IWPs. Experiments are carried out, and the results show that compared with the traditional method, the IWP profile accuracy is improved by 54.4%, and the surface quality is improved by 49.1%. The results are close to those obtained from simulations and theoretical analysis, which verifies the effectiveness of the proposed method.
Early Effects of Communities That Care on System Change Outcomes: A Quasi-Experimental Study
Authors: Röding Dominik , von Holt Isabell , Decker Lea , Walter Ulla 
Published: December 2024

Abstract

Background: In 2009, the Communities That Care (CTC) approach, widely implemented worldwide, was introduced in Germany across five municipalities. Since then, an increasing number of German municipalities have adopted CTC. While the approach has shown effectiveness internationally, its effectiveness in Germany has not yet been evaluated. The CTC community change model posits that fostering a science-based prevention approach (adoption), sectorial collaboration (SC), and prevention collaboration (PC) leads to increased implementation and reach of evidence-based prevention programs. Over time, this approach aims to achieve measurable reductions in youth problem behaviors. This paper examines the early effects of CTC on adoption, SC, and PC.
Methods: Analyses were conducted using longitudinal data from a Community Key Informant (CKI) survey administered in 2021 (baseline) and 2023 (post-intervention). Data from 318 CKIs across 17 intervention communities (IC) and 15 comparison communities (CC) were analysed using three-level mixed models. The primary outcome is adoption.
Results: The final adjusted models revealed significant baseline differences between ICs and CCs in the outcomes of Adoption and SC, with higher baseline levels for ICs. Unlike the other outcomes, no significant difference in baseline levels of PC was found. ICs experienced a non-significant increase in Adoption (OR 1.248; 95% CI 0.337-4.614) and PC (γ = 0.070, SE = 0.126, p=.579) relative to CCs over time. In contrast, ICs showed no significant change in SC scores post-intervention, whereas CCs experienced an non-significant increase during the same period (γ = -0.200, SE = 0.122, p=.105).
Conclusions: The COVID-19 pandemic affected the study period, preventing the investigation of CTC under normal conditions. Despite this, the primary and one of the secondary outcomes showed a weak and non-significant change in the direction intended by CTC. Given the limited implementation of CTC due to the pandemic, this is considered a tentative indication of CTC's effectiveness in Germany. To confirm this, the CTC-EFF study should be extended with at least one additional survey wave to evaluate CTC's effects under normal conditions.
Study registration: This study was registered with German Clinical Trial Register: DRKS00022819 on Aug 18, 2021.
Single-cell sequencing reveals the role of SALL4 in cervical cancer development
Authors: Tonghui Bao , Wufen Li , Lin Qi 
Published: December 2024

Abstract

Objective: This study aims to investigate the role of SALL4 in the development and progression of cervical cancer, particularly its impact on the proliferation, migration and adhesion of HeLa cells, and to explore the clinical potential of SALL4 as a therapeutic target.
Methods: Single-cell sequencing technology was utilized to analyze the cellular characteristics of cervical cancer tumor cell populations, and transcriptomic data were integrated to assess the differential expression of SALL4. Additionally, both in vitro and in vivo experiments were conducted to evaluate the effect of SALL4 inhibition on cell proliferation, migration, adhesion, and its regulation of collagen content and fibrosis.
Results: High expression of SALL4 significantly promoted the proliferation, migration, and adhesion of cervical cancer cells. After SALL4 knockout, the migration and proliferation rates were significantly lower than those of HeLa cells. Immunofluorescence and in vivo experiments showed that SALL4 knockout cells exhibited a significantly reduced tumor formation ability, with lower proliferation and fibrosis levels compared to HeLa cells.
Conclusion: High expression of SALL4 promotes cervical cancer progression, while inhibition of SALL4 expression effectively suppresses cancer development. As a critical regulatory factor, SALL4 has the potential to become a therapeutic target for cervical cancer, and its application in cervical cancer treatment warrants further exploration.
Research on the Optimization of Supply Chain Decisions for Green Agricultural Products Based on Farmers' Risk Preferences and Disaster Year Subsidies
Authors: Li Fuchang , Gui Yutong , Du Yadong , Wen Jing 
Published: December 2024

Abstract

Under the conditions of agricultural insurance and the uncertainty of agricultural product output, this study considers farmers constrained by funding and government subsidies during disaster years. An order contract supply chain is constructed, comprising farmers, distributors, and insurance companies. Farmers exhibit varying risk preferences and cultivate agricultural products with different levels of greenness. A three-stage game model is employed to derive the optimal planting scale for farmers, the optimal wholesale price for distributors, and the optimal premium rate for insurance companies. The results indicate that government disaster year subsidies directly increase the Conditional Value-at-Risk (CVaR) of farmers, although a maximum subsidy rate exists to prevent inequity. Enhancing the greenness of agricultural products has a positive impact on agricultural production. As the probability of disaster years increases, loan guarantee insurance becomes more effective in expanding farmers' planting scales, while yield guarantee insurance demonstrates superior performance in improving farmers' CVaR. The practical value of this study lies in providing farmers with optimal decision-making frameworks and profit calculations for loan guarantee insurance and yield guarantee insurance under varying disaster-year probability scenarios. Additionally, it explores the impact of government subsidies during disaster years, the greenness level of agricultural products, and the risk of crop failure on changes in farmers' value. These findings contribute to the optimization of farmers' decision-making processes, enhancement of their economic welfare, and the promotion of sustainable agricultural development, ultimately improving the livelihoods of farmers.
Using LDpred2 to Adapt Polygenic Risk Score Techniques for Methylation Score Creation
Authors: Sandås Kristoffer , Spindola Leticia , Løkhammer Solveig , Stavrum Anne-Kristin , Andreassen Ole , Tesfaye Markos , Hellard Stéphanie Le 
Published: December 2024

Abstract

Objective: This study sought to determine if the R package LDpred2, designed for polygenic risk score creation for genome-wide association studies using summary statistics, could be adapted for deriving DNA methylation scores from methylome-wide association studies. Recognizing that linkage disequilibrium, used as prior in LDpred2, does not apply to methylation, we explored co-methylated regions and topologically associating domains as alternative structural priors for correlation between methylation sites. A genomic sliding-window approach was also tested. The performance of the LDpred2-based models was evaluated on methylation data from schizophrenia and control samples (N=1,227).
Results: LDpred2 models employing topologically associating domains and sliding window clusters as priors performed similarly to existing methods, explaining approximately 3.6% of schizophrenia phenotypic variance. The co-methylated regions model underperformed due to insufficient clustering of probes. The similarity in performance between the model using topologically associating domains and a null model consisting of random clusters suggests that the structural information provided by these domains enhances performance only marginally. In conclusion, while LDpred2 can be adapted for methylation data, it does not substantially enhance methylation score performance over existing methods, and the choice of structural prior may not be a critical factor.
Evaluation of Vanadium contamination and environmental peril in some particular waste wasteyards
Authors: Askari Kaveh Ostad Ali , Kianmehr Peiman 
Published: December 2024

Abstract

Waste removal in landfills has caused in significant vanadium contamination of soil and ecologies. This study evaluated vanadium contamination and potential ecological risks in several selected landfills in southeastern Iran. In this study, soil models were collected from dynamic landfills applying a stainless-steel soil auger at a depth of 0-21 cm. Five subsamples were collected from each model site. Control models were taken from areas without manufacturing activity or landfills. Soil models were air dehydrated at room temperature, ground in an agate mortar and pestle and stored in a properly labeled polyethylene bag prior to examination. Vanadium examination was performed applying the FS240AA atomic captivation spectrophotometer and the produced information was examined applying IBM SPSS version 21.0 and Ms-Excel 2007. The average vanadium attentions of the landfills surveyed were found in the subsequent demand: North Lut Landfill> Southern Lut Landfill> Lut Plain Landfill> Central Lut Landfill. Satisfactory possible environmental peril indicators were experimental in Easteren Lut, Lut plains, and North Lut landfills, while the southern Lut landfills had high possible environmental perils rice field. In addition, the contamination index played that all landfills examined were heavily contaminated. Numerical analysis played no important variation in vanadium absorption in the landfills examined (p> 0.06). In addition, there was a strong positive correlation amongst the Lut Plain / Nnewi (r = 0.629), Southern Lut / Nnewi (r = 0.621), and Southern Lut / Central Lut (r = 0.849) landfills. This indicates that the metals found in the landfill have the same source.
РУССКИЕ УЧЕНЫЕ В СЛОВАКИИИНТЕРАКЦИЯ СЛОВАЦКОЙ И РУССКОЙ НАУКИ(1920–1945)
Authors: Гарбульова Л. 
Published: December 2024

Первые русские ученыеэмигранты, покинувшие Россию после революции, прибыли в Словакию в начале 1920х гг., чтобы поступить на факультет недавно основанного Университета им. Яна Амоса Коменского в Братиславе. Доля интеллектуалов в русской общине выросла в 1930х, когда в Словакию приехала большая группа русских инженеров и техников. В независимой Словацкой Республике были созданы новые высшие учебные заведения (в основном в области технологий и естественных наук), что привлекло в страну еще больше российских специалистов. Деятельность российских ученых (исследовательская и педагогическая) явилась ценным вкладом в развитие высшего гуманитарного и технического образования и формирование отдельных дисциплин в межвоенной Словакии. Интенсивное и плодотворное научное и профессиональное сотрудничество между словацкими и российскими учеными стало неотъемлемой частью развития науки в России и Словакии в первой половине XX века.
Immigrants who left Russia after the revolution attracted public attention in Slovakia in the early 1920s. At that time first Russian scholars arrived in Slovakia to join the faculty of the newly founded Jan Amos Komensk University in Bratislava. New tertiary education institutions were established in the independent Slovak Republic, which attracted more Russian specialists to the country. Russian scholars teaching and research work was a valuable contribution to the development of tertiary humanities and technical education in the interwar Slovakia and the genesis of individual disciplines. Intensive and fruitful scientific and professional cooperation between Slovak and Russian scholars was an integral part of Russian and Slovak science development in the first half of the 20th century.
ФОРМИРОВАНИЕ МЕМОРИАЛЬНОГО ПРОСТРАНСТВАРУССКОГО МИРА В ЛАТИНСКОЙ АМЕРИКЕВ КОНТЕКСТЕ ИСТОРИИ ДВУХ ВОЛН ЭМИГРАЦИИ
Authors: Мосейкина М.Н. 
Published: December 2024

Латинская Америка в ХХ в. стала одним из центров русского рассеяния за рубежом, сюда направлялись потоки первой и второй волн эмиграции: к представителям белого движения, казачества, техноэлиты после II мировой войны присоединились перемещенные лица, демонстрировавшие собственный опыт правовой, экономической и социокультурной адаптации. Представляется актуальным изучение военнополитического, экономического и культурного потенциала Русского мира в странах Латинской Америки, благодаря которому формировалось мемориальное пространство, продолжающее существовать и сегодня. В статье определяются места и модели памяти русской диаспоры, связанные с историей русской эмиграции в этом регионе.
Latin America became one of the centers of the Russian resettlement abroad, where the first and second waves of emigration flowed in the 20th century. These were representatives of the white movement, the Cossacks, the technoelites, who were joined by displaced people after World War II. They demonstrated their own experience in legal, economic and sociocultural adaptation. It is very useful to examine the experience of the militarypolitical, economic and cultural potential of the Russian world in the countries of Latin America. Thanks to it a memorial space was formed, which continues to exist today. The article identifies the places and memory models of the Russian diaspora associated with the history of Russian emigration in this region.
ПЕДАГОГИЧЕСКОЕ НАСЛЕДИЕ РОССИЙСКОЙ ЭМИГРАЦИИВ МИРОВОМ ОБРАЗОВАТЕЛЬНОМ ПРОСТРАНСТВЕ
Authors: Седова Е.Е. 
Published: December 2024

В статье рассматриваются пути взаимодействия и взаимовлияния педагогики российского зарубежья и западной педагогики ХХ века в 19201950 гг. Формирование образовательного пространства русской эмиграции, причины и факторы, оказавшие влияние на её становление. Особенности педагогических взглядов и идей наиболее значительных ученых и педагогов российского зарубежья (С. Гессен П. Сорокин, Е.В. Антипова), оказавших влияние на развитие педагогических идей в ХХ веке.
The article deals with the ways of interaction and mutual influence of pedagogy of the Russian abroad and Western pedagogy of the twentieth century in 19201950. Formation of the educational space of Russian emigration, the reasons and factors that influenced its formation. Features of pedagogical views and ideas the most significant scientists and teachers of the Russian abroad (S. Hessen P. Sorokin, E.V. Antipova), which influenced the development of pedagogical ideas in the twentieth century.
РОЛЬ РУССКОЙ ЭМИГРАЦИИ 1920–1930-Х ГОДОВВ СТАНОВЛЕНИИ УНИВЕРСАЛЬНОГО СТАТУСА БЕЖЕНЦЕВ
Authors: Бочарова З.С. 
Published: December 2024

Статья посвящена роли эмигрантских организаций в формировании правового статуса российских беженцев. Два этапа законотворчества эмиграции налицо. Первый этап касался выдачи специальных удостоверений личности, известных как паспорта Нансена. Второй связан с усилиями эмигрантских адвокатов по принятию единого правового статуса для российских беженцев. Выделены противоречивые позиции эмигрантов относительно обоснования отказа от российских паспортов и введения новых, без гражданства. Показана как роль Земгора в разработке Свидетельства, так и роль Центральной юридической комиссии по изучению положения российских беженцев в подготовке Соглашения (1928 г.) и последующей Конвенции (1933 г.) о статусе русских и армянских беженцев.
The article states the role of emigre organizations in the development of legal status for Russian refugees. Two stages of emigration lawmaking are clearly in evidence. The first stage dealt with issuing special identity certificates known as Nansen passports. The second saw the efforts of emigrant lawyers to adopt a unified legal status for Russian refugees. Emigrants controversial positions on rationale for rejecting Russian passports and introducing new stateless ones are highlighted. The article shows both the role of Zemgor in elaborating the Certificate, and the role of the Central Legal Commission for the Study of the Situation of Russian Refugees in the preparation of the Agreement (1928) and the subsequent Convention (1933) relating to the status of Russian and Armenian refugees.
КНЯЖНА ЗИНАИДА АЛЕКСЕЕВНА ШАХОВСКАЯ –«СВИДЕТЕЛЬНИЦА ВЕКА»,БЛИСТАТЕЛЬНЫЙ ЛИТЕРАТОР РУССКОГО ЗАРУБЕЖЬЯ
Authors: Володько А.В. 
Published: December 2024

Статья посвящена необычайно разносторонней личности: поэту, прозаику, эссеисту, журналисту княжне Зинаиде Алексеевне Шаховской, ее литературной деятельности и неоценимому вкладу в мировую культуру.
The article is devoted to the life of Princess Zinaida A. Shakhovskaya, a person of many talents she was a poet, novelist, essayist and journalist to her creative work, and her invaluable contribution to the global culture.
ПРОФЕССОР Н.Е. АНДРЕЕВ И ЕГО ВКЛАДВ ИЗУЧЕНИЕ РУССКОЙ ИСТОРИИ И КУЛЬТУРЫ
Authors: Базанов П.Н. 
Published: December 2024

В статье реконструируются вехи жизни и основные направления творчества выдающегося историка и литературоведа русской эмиграции Николая Ефремовича Андреев, впервые приводятся уникальные сведения из Бахметевского архива. Особое внимание обращено на исторические и культурологические работы Н.Е. Андреева и его вклад в историю эмиграции. Показано влияние трудов Н.Е. Андреева на современную наука, доказывается, что они являются актуальным историческим знанием.
The article reconstructs the milestones of life and work of an outstanding Russian migr historian and literary critic, Nikolai Efremovich Andreev. Particular attention is drawn to the historical and cultural studies by N.E. Andreev and to his contribution to the history of emigration. The author demonstrates the influence of Andreevs works on contemporary scholarship. It is shown that the works by N.E. Andreev are relevant historical knowledge. The article presents new documents from the Bakhmetev archive.
ФЕВРАЛЬСКИЙ РЕВОЛЮЦИОННЫЙ КРИЗИС 1917 ГОДАВ РЕФЛЕКСИИ ЛИДЕРОВ ПРОГРЕССИВНОГО БЛОКА
Authors: Сараева Е.Л. , Кочешков Г.Н. 
Published: December 2024

Статья посвящена анализу идей лидеров Прогрессивного блока в IV Государственной думе о краткосрочных факторах февральского революционного кризиса 1917 г. Прогрессисты считали главным виновником революции власть. По их мнению, бессилие правящей элиты предопределило неизбежность падения монархии. Лидеры Прогрессивного блока выделили краткосрочные факторы Февральской революции: неудачная, непопулярная затяжная война, обрушившая авторитет власти и вызвавшая проблемы в социальноэкономической сфере неспособность правительства эффективно решать задачи государственного управления ориентация монархии на традиционные ценности некомпетентность ряда министров конфликт правительства с Думой социокультурный раскол общества возмущение народа своим бесправием и уровнем жизни, отсутствие хлеба в столице максималистские лозунги радикальных партий, наивное доверие масс к левым агитаторам популярность идеи революции нежелание солдат идти на фронт, власть пыталась, но не смогла использовать силовые методы подавления революции. Прогрессисты интерпретировали исторический процесс в рамках дихотомии традиции новации.
The article is devoted to the analysis of the ideas of the leaders of the Progressive bloc in the IV State Duma of the Russian Empire on the shortterm factors of the 1917 February Revolution. The main culprit of the revolution was the authorities, in the Progressists opinion. The powerlessness of the ruling elite, according to the Progressists, predetermined the inevitability of the fall of the monarchy. Leaders of the Progressive bloc singled out shortterm circumstances that predetermined the February Revolution of 1917: an unsuccessful, unpopular, protracted war that has downed the authority of the government and caused problems in social and economic sphere inability of the government to effectively solve tasks in all branches of public administration orientation of the monarchy on traditional values incompetence of a number of ministers the conflict between the government and the Duma sociocultural division of society indignation of the people with their lack of rights and lowering of living standards, lack of bread in the capital the maximalist slogans of radical parties, the naive confidence of the masses in the leftwing agitators the popularity of the idea of revolution the soldiers unwillingness to go to the front. The authorities tried, but could not use force to suppress the revolution. The Progressists interpreted the historical process within the dichotomy of tradition innovation.
«ЗА МИР ВО ВСЕМ МИРЕ»: ГУМАНИЗМ И ЭТИКА ГЛОБАЛЬНОЙБЕЗОПАСНОСТИ В РАКУРСЕ ИДЕОЛОГИЧЕСКОЙ ПОЛИТИКИ СОВЕТСКОГО РУКОВОДСТВА (1956-1962 ГГ.)
Authors: Шок Н.П. , Пивоваров Н.Ю. 
Published: December 2024

Статья посвящена анализу миротворческой политики советского руководства в период, когда СССР постепенно переходит от открытой конфронтации к мирной конкуренции. Основное внимание уделено рассмотрению идей советского руководства в области глобальной безопасности и этики международного диалога. В качестве основных источников привлекаются материалы высших партийных органов ЦК ВКП(б)/КПСС, документы о подготовке и участии представителей СССР в различных миротворческих организациях, переписка советских лидеров с представителями мировых общественных организаций, выдающимися учеными и простыми гражданами иностранных государств, демонстрирующая реакции советского руководства на милитаристические и антигуманные шаги в отношении человечества.
The article is devoted to peacemaking policy of the Soviet leadership during 19561962, the period when the USSR gradually moved from an open confrontation to a peaceful competition. The main attention is paid to the analysis of the ideas of the Soviet leadership in the field of global biosafety and bioethics. The main sources are the materials of the highest party organs the Central Committee of the CPSU(b) / CPSU, including documents on the preparation and participation of representatives of the USSR in various peacekeeping organizations, the correspondence of Soviet leaders with representatives of world public organizations, outstanding scientists, and ordinary people from other countries demonstrating the reaction of the Soviet leadership to militaristic and antihuman measures.
РЕГИОН РОССИИ В КОНТЕКСТЕИНТЕЛЛЕКТУАЛЬНОЙ ИСТОРИИ
Authors: Гелла Т.Н. 
Published: December 2024

Рец. на кн.: Непомнящий А.А. Академик С.Ф. Платонов и крымоведение (Белгород: Константа, 2018. 216 с.
Review: Nepomnyashhij А.А. Аkademik S.F.Platonov i krymovedenie. Belgorod: Konstanta, 2018. 216 s. (Seriya: Biobibliografiya krymovedeniya vyp. 27)