bluuebunny/crossref_metadata_2025_split huggingface dataset:
Introduction to a novel gamma radiation shield utilizing polyurethane-PbO nanocomposite
Authors: dorostkar mahdieh , Kangarlou Haleh , Saray Akbar Abdi 
Published: November 2023

Abstract

The importance of searching for proper material against radiation hazard has been studied since the beginning of radiation perusal and understanding the fact of radiation protection. Gamma radiation protection materials usually deal with heavy elements with higher price, hard to maintain and etc. Polyurethane based materials are one the popular choices nowadays in sound and thermal insulation, their low weight properties and the most important, their fast and convenient construction ingredients; however, PU foams can be used as radiation shield as well as noise and heat resistance; due to their approachability, light weight, high resistance, comfortable construction and etc. This study is an effort in both simulation and experiment to construct and investigate the properties of Polyurethane material dopped with lead oxide, as gamma shield. The shield was considered in several weight fractions of lead and led to several samples. MCNPX 2.6 Monte Carlo code has been utilized for simulation procedure and 137Cs has been used as gamma source in both simulation and experiment. The results have a promising response against the gamma radiation and are suitable in attenuating gamma rays.
Targeted metabolomics reveals plasma short-chain fatty acids are associated with metabolic dysfunction-associated steatotic liver disease
Authors: Thing Mira , Werge Mikkel Parsberg , Kimer Nina , Hetland Liv , Rashu Elias , Nabilou Puria , Junker Anders , Galsgaard Elisabeth Douglas , Bendtsen Flemming , Laupsa-Borge Johnny , McCann Adrian , Gluud Lise Lotte 
Published: November 2023

Abstract

Background
Alterations in the production of short-chain fatty acids (SCFAs) may reflect disturbances in the gut microbiota and have been linked to metabolic dysfunction-associated steatotic liver disease (MASLD). We assessed plasma SCFAs in patients with MASLD and healthy controls.
Methods
Fasting venous blood samples were collected and eight SCFAs were measured using chromatography-tandem mass spectrometry (GC-MS/MS). Relative between-group differences in circulating SCFA concentrations were estimated by linear regression, and the relation between SCFA concentrations, MASLD, and fibrosis severity was investigated using logistic regression.
Results
The study includes 100 patients with MASLD (51 with type 2 diabetes, 51 with mild/no fibrosis, and 49 with significant fibrosis) and 50 healthy controls. Compared with healthy controls, MASLD patients had higher plasma concentrations of propionate (21.8%, 95% CI 3.33 to 43.6, p = 0.02), formate (21.9%, 95% CI 6.99 to 38.9, p = 0.003), valerate (35.7%, 95% CI 4.53 to 76.2, p = 0.02), and α-methylbutyrate (16.2%, 95% CI 3.66 to 30.3, p = 0.01) but lower plasma acetate concentrations (− 30.0%, 95% CI − 40.4 to − 17.9, p < 0.001). Among patients with MASLD, significant fibrosis was positively associated with propionate (p = 0.02), butyrate (p = 0.03), valerate (p = 0.03), and α-methylbutyrate (p = 0.02). Six of eight SCFAs were significantly increased in F4 fibrosis.
Conclusions
In the present study, SCFAs were associated with MASLD and fibrosis severity, but further research is needed to elucidate the potential mechanisms underlying our observations and to assess the possible benefit of therapies modulating gut microbiota.
Substantiation of the coefficients of joint operation of a diesel engine and hydromechanical transmission of a wheeled skidder
Authors: Кочнев А.М. , Кривоногова А.С. , Пушков Ю.Л. 
Published: November 2023

Многочисленные исследования в различных лесопромышленных регионах РФ и климатических условиях позволили сформулировать научное положение, которое утверждает, что при трелевке пачки древесины в различных почвенно-грунтовых и климатических условиях коэффициенты загрузки двигателя по оборотам (KЗ), крутящему моменту (Kn) и мощности (KN) достаточно стабильны. Стабильность значений коэффициентов KЗ, Kn, KN при трелевке пачки древесины на конкретной передаче в различных производственных условиях принята за базу при прогнозировании эксплуатационных, нагрузочных и расчетных режимов и в создании теории эксплуатационной эффективности работы трелевочных тракторов. Предложена методика определения коэффициентов совместной работы двигателя с гидромеханической трансмиссией, значения которых являются базисом прогнозирования эксплуатационных режимов и эксплуатационной эффективности работы колесных трелевочных тракторов.При разработке новых или усовершенствовании серийных трелевочных тракторов необходимо иметь представление о влиянии параметров и технических решений, применяемых в механизмах, системах и узлах на рабочие режимы машины, которые определяют нагруженность элементов конструкций, а, следовательно, ее надежность и технико-эксплуатационные показатели, в том числе и влияющие на эксплуатационную эффективность работы.
Numerous studies in various timber industry regions of the Russian Federation and climatic conditions have made it possible to formulate a scientific position, which states that when skidding a pack of wood in various soil-soil and climatic conditions, the engine load coefficients in terms of speed ( Ks ), torque ( Kt ) and power ( KN ) are quite stable. The stability of the values of the coefficients K З, Kn , K З when skidding a pack of wood in a specific gear in various production conditions is taken as the basis for predicting operational, load and design modes and in creating a theory of operational efficiency of skidders. A method for determining the coefficients of joint operation of the engine with a hydromechanical transmission is proposed, the values of which are the basis for predicting the operating conditions and operational efficiency of wheeled skidders. When developing new or improving serial skidders, it is necessary to have an idea of the influence of parameters and technical solutions used in mechanisms, systems and assemblies on the operating modes of the machine, which determine the load of structural elements, and, consequently, its reliability and technical and operational indicators, including those affecting the operational efficiency of work.
Impact of cattle grazing on forest regeneration processes in the Novosibirsk Region
Authors: Кузин Д.Е. , Данилов Д.А. 
Published: November 2023

Целью исследования было определить особенности лесообразовательного процесса под воздействием выпаса крупного рогатого скота, на землях сельскохозяйственного назначения, вышедших из активного оборота в условиях Западной Сибири. Исследование проводилось на бывших пашнях, использовавшихся под выпас и находящихся на разных стадиях лесовосстановительного процесса. Проведена комплексная оценка и анализ биометрических показателей древостоя, живого напочвенного покрова, почв, что позволяет определить особенности генезиса формируемых фитоценозов и спрогнозировать динамику их развития в условиях Новосибирской области. На основании проведённого исследования сформирована гипотеза об эндозоогенном характере распространения сосны обыкновенной на пастбищах в лесостепной зоне.
The aim of the study was to determine the characteristics of the forest formation process under the influence of cattle grazing on abandoned agricultural lands in the conditions of Western Siberia. The study was conducted on former cropland used for grazing and at different stages of the reforestation process. A comprehensive assessment and analysis of the biometric indicators of the stand, ground cover, and soil was carried out, which allows us to determine the genesis of the emerging phytocenosis and predict the dynamics of their development in the Novosibirsk region. Based on the study the hypothesis of the endozoogenic nature of the distribution of Scots pine in pastures in the forest-steppe zone was formed.
The Relationship Of Creativity With Student Learning Outcomes In Pastry And Bakery Subjects At Smk Negeri 6 Padang
Authors: Ramadhani Chintya Putri , Yulastri Asmar 
Published: November 2023

This research was motivated by students' low curiosity in the material being taught, resulting in low creativity and no new innovations produced by students. This occurs due to students' lack of confidence in their abilities, because they are afraid to take risks when practicing pastry and bakery. From the problems above, many students fail in pastry and bakery subjects which will have an impact on learning outcomes. The aim of this research is to describe: 1) student creativity in Pastry and Bakery subjects, 2) student learning outcomes in Pastry and bakery subjects, 3) the relationship between creativity and student learning outcomes in Pastry and bakery subjects at SMK Negeri 6 Padang . This type of research is quantitative with a correlational approach. The population in this study was class XII culinary students at SMK Negeri 6 Padang for the 2023/2024 academic year, totaling 96 people. The sample consisted of 96 people taken using a saturated sampling technique. The saturated sampling technique is that all members of the population are used as research samples. The primary data collection technique uses a questionnaire and is measured using a Likert scale. Then for secondary data using learning outcomes in the form of grades in pastry and bakery subjects. Analysis requirements test was carried out using normality tests and linearity tests, then hypothesis testing using Pearson product moment correlation analysis, and correlation significance testing with the T test using SPSS Version 21.00. The research results show that: 1) the creativity of class XII students at SMK Negeri 6 Padang is in the medium category (53.1%), 2) the learning outcomes in pastry and bakery subjects for class 4%), 3) based on hypothesis testing, there is a positive and significant relationship between creativity and student learning outcomes in the Pastry and Bakery Products subject with a significant value of 0.001. Keyword: Creativity, pastry and bakery learning outcomes, pastry and bakery subjects.
Identification And Potential Of Traditional Foods In Lekuk 50 Tumbi Lempur Tourism Village As A Culinary Tourism Attraction
Authors: Araruna Agre , Kasmita Kasmita 
Published: November 2023

The purposeof this study was to describe the traditional food varities in Lekuk 50 Tumbi Tourism Village in terms of culinary tourism indicators, namely uniqueness, originality, authenticity and diversity. The research method in this thesis uses descriptive research methods with qualitative data. The goals and research statements guided the analysis and interpretation of the collected data. Using a non-probability sample technique called snowball sampling, informants were identified. Through observation, documentation, and interviewing, data was gathered.The results of the study show that traditional food in the village has strong characteristics and is able to create an unforgettable culinary experience for tourists. Overall, the traditional food at Lekuk 50 Tumbi Lempur Tourism Village has great potential as a main attraction in culinary tourism. The combination of uniqueness, authenticity, originality and diversity creates an immersive and unforgettable culinary experience for tourists. With the right development strategy, the village can maximize this potential, strengthen the local economy, and introduce its rich cultural heritage to the world. Through collaborative and sustainable efforts, Lekuk 50 Tumbi Lempur Tourism Village has the potential to become a culinary destination that not only spoils the tongue, but also touches the soul with authentic cultural diversity.Keyword:
The Effect Of White Sweet Potato On The Quality Of Snow’s Cookies
Authors: Ramadhannisa Ilmi Syukro , Holinesti Rahmi , Syarif Wirnelis , Anggraini Ezi 
Published: November 2023

This research is motivated by the increasing consumption of wheat, where wheat comes from imported wheat. To reduce dependence on wheat, local food ingredients such as white sweet potatoes can be used. Utilizing local food can create new innovations in snow white cookies using white sweet potatoes, as well as increasing public knowledge of the use of local food ingredients. This research aims to analyze the effect of white sweet potato substitution of 15%, 30% and 45% on the quality of Snow’s cookies including shape, color, aroma, texture and taste. This type of research is a pure experiment (true experiment) with a completely randomized design method with one factor. The type of data is primary data sourced from 3 expert panelists who filled in the organoleptic test format. The data obtained were tabulated in table form and analysis of variance (ANOVA) was carried out, if significantly different, continued with the Duncan test. The results of the research showed that there was a significant effect between the substitution of white sweet potato at 15%, 30% and 45% on the texture and taste quality of the Snow’s cookies. Based on statistical tests, the data obtained Fcount (13.60) > Ftable (4.76) on the quality of the crumbly textureand Fcount (12.25) > Ftable (4.76) on the quality of the typical taste of white sweet potatoes, then continued with the test Duncan. The quality test results for the best white sweet potato snow’s cookies were found in the X3 treatment with 45% white sweet potato substitution.
Educação e cidadania
Authors: Pereira Thiago Ingrassia , Kostuczenko Karine , Lang Leda Hanel 
Published: November 2023

A formação para a participação política é fundamental para a consolidação da sociedade democrática. Os valores, noções e atitudes são provenientes da socialização em espaços escolares e não escolares, sendo importante ações efetivas de construção de sujeitos politicamente sofisticados. Este artigo explora resultados de pesquisas desenvolvidas em cursos de mestrado (profissional e acadêmico), organizadas a partir da preocupação em compreender a dinâmica formativa de crianças e jovens em relação à cidadania. O foco analítico são dois estudos de caso em que as práticas escolares no ensino fundamental e um projeto do poder legislativo municipal são examinados a partir de referenciais do campo das ciências humanas. As experiências analisadas sugerem a importância de espaços de socialização política das novas gerações, articulando as dimensões da política e da cidadania em contexto democrático.
Palavras-chave: cidadania; socialização política; democracia.
Unleashing Potential: First Vietnamese 3D in vitro Model using Induced Pluripotent Stem Cell-Derived Cardiomyocytes
Authors: Anh Dang Thi Minh , Hung Nguyen Xuan 
Published: November 2023

Advancements in studying cardiovascular diseases (CVDs) face challenges related to cell sources and utilizing animal models. To mitigate these limitations, three-dimensional (3D) in vitro modeling using human induced pluripotent stem cell-derived cardiomyocytes (iCMs) has emerged as a promising approach. In this study, human induced pluripotent stem cells (hiPSCs) were successfully differentiated into cardiomyocytes and subsequently used to generate spheroids via the hanging drop method. We comprehensively characterized the formation, fusion, and beating capability of the generated spheroids. The hiPSCs were efficiently differentiated into cardiomyocytes, exhibiting contractile activity and expressing cardiac-specific markers such as α-actinin and cardiac troponin. Subsequent results demonstrated the successful formation of iCM-derived cardiac spheroids within 48 hours, with beating activity observed after two days cultured in an ultra-low attachment 96-well plate. In addition, similar to the iCM monolayer, the established spheroids also positively expressed α-actinin. Notably, the spheroids exhibited rapid assembly and maintained survival and stable beating throughout the observation period. These findings highlight the potential of establishing a robust in vitro iCM-derived 3D spheroids model for drug testing and cardiovascular disease modeling, typically for Vietnamese people.
N-TiO2/FeMIL-88B- A Promising Photocatalyst for Photoconversion of CO2 into Methanol
Authors: Lan Phung Thi , Hao Nguyen Hoang , Thuc Nguyen Van , Ha Nguyen Ngoc , Cam Le Minh , Ha Nguyen Thi Thu 
Published: November 2023

The present objective of this work is to find photoactive materials capable of facilitating visible light-driven redox reactions between CO2 and H2O. Our research is primarily focused on the incorporation of nitrogen (N) into the crystal lattice of titanium dioxide (TiO2) and its deposition onto Fe-MIL-88B to improve light absorption properties, minimize recombination of photo-generated electron-hole pairs, and increase CO2 adsorption capacity. The N-TiO2/Fe-MIL-88B composite was successfully prepared and characterized using SEM, XRD, and EDX techniques. The introduction of N-TiO2 into Fe-MIL-88B does not damage the crystal structure of Fe-MIL-88B. Anatase is the only crystalline phase observed from the XRD diffraction pattern. SEM images show that N-TiO2 is well dispersed on the Fe-MIL-88B surface. The results of quantum simulations indicate that TiO2 strongly interacts with Fe-MIL-88B. The binding energy is determined to be -78.2 kcal/mol. The calculated UV-Vis results revealed that the light absorption edge of the TiO2/Fe-MIL-88B was red-shifted in comparison with that of the pure TiO2 (from ca. 500 nm to 550 nm). The red-shifted light absorption of TiO2/FeMIL-88B suggests that the band gap of TiO2/Fe-MIL-88B is narrower compared to that of the pristine TiO2, indicating the better light utilization ability of the TiO2/Fe-MIL-88B. Results from high-performance liquid chromatography show that N-TiO2 has the capability to convert CO2, but at a significantly low rate. The methanol formation is distinctly observed only over the N-TiO2/Fe-MIL-88B catalyst. The CO2 conversion efficiency, estimated using gas chromatography, is calculated to be 11.94%.
Primary School Management and Culture in Digital Transformation
Authors: Ly Nguyen Thanh 
Published: November 2023

This paper explores the opinions of managers, teachers and parents on Organizational Values and on management practices in enhancing these values in primary schools in Hanoi during digital transformation. The study involves 356 participants, including managers, teachers, and parents, in various educational primary institutions. By examining the real situation of these values and management practices, this research aims to provide insights into effective leadership approaches that can facilitate successful digital transformation in schools. The findings highlight the importance of aligning management practices with the core values of the school culture to foster a supportive and innovative environment for all stakeholders involved. Implications for practitioners and recommendations for future research are discussed.
PRELIMINARY INVESTIGATION OF ANTIGEING PROPERTIES OF TWO KINDS OF MALLEINS
Authors: S. AL-KASHALY SALAH, 
Published: November 2023

The antigeic composition of two kinds of malleins (Old mallein and PPD mallein) were analysed by gel filtration chromatography on sephacryl S 300 column. Two major protein peaks were determined and were termed peak 1 (mol. wt> 10-6 daltons) and peak 2 (mol. wt < 5000 daltons). Fractions of mallein were tested for its haemagglutination inhibition activity (HI) and delayed type hypersensitivity reaction (DTH) in a P. mallei sensitized guinea pigs. Most of the HI activity of the fractions was correlated to the fractions of peak 1. Moreover peak 1 produced good DTH reaction in sensitied guinea pigs, but peak 2 failed to produce satisfactory results.
It was concluded that the antigenic activity of both Old and PPD malleins were associated with the high molecular weight protein fraction which is found in both mallein preparations.
PELATIHAN PEMBUATAN KOMPOS ORGANIK PADAT KULIT PISANG DI MARKABAN LAUT DESA SUNGAI RENGAS KALIMANTAN BARAT
Authors: Ashari Asri Mulya , Purwaningsih Purwaningsih 
Published: November 2023

Petani di Markaban Laut Desa Sungai Rengas umumnya Petani padi dan juga Petani sayur-sayuran. Pemakaian pupuk sintetik saja pada tanaman yang ditanam petani belum menghasilkan produksi yang maksimal, apalagi lahan di Tanggul Markaban Laut umumnya adalah tanah sulfat masam, yang mengandung pirit, dibutuhkan penambahan bahan organik berupa pupuk organik seperti kompos. Kegiatan PKM yaitu sosialisasi mengenai pentingnya pupuk organik dan bahaya jangka Panjang pupuk anorganik, serta pelatihan pembuatan kompos organic padat menggunakan embar komposter. Limbah padat yang berasal dari limbah rumah tangga terdiri dari limbah organic dan anorganik. Pengolahan limbah organic dapat mengurangi pencemaran lingkungan. Limbah organic padat yang diolah menjadi kompos organic dengan menggunakan ember komposter dapat menghasilkan kompos padat dan cair. Pengolahan limbah rumah tangga organic yang tepat dapat mengurangi terjadinya pencemaran lingkungan. Pengolahan limbah organic dapat menghasilkan kompos padat dan cair dengan metode ember komposter
Program Pemberdayaan Program Mengajar Desa Untuk Siswa-Siswi Rw 04 Desa Suko Dan Sekitarnya Guna Mengingkatkan Daya Saing Global
Authors: Qisthinaningtyas Sharhani 
Published: November 2023

Pandemi menyebabkan mobilitas kegiatan masyarakat berkurang. Sekolah dari tingkat SD sampai dengan universitas dilakukan secara daring. Peserta didik mudah merasa jenuh dalam proses pembelajaran dan susah memahami materi yang diajarkan. Para guru juga mendapat kesulitan dalam mengajar peserta didik dengan adanya berbagai macam hambatan. Tujuan program Mengajar Desa adalah melakukan pendampingan belajar untuk anak-anak SD di wilayah RW 04 Desa Suko dengan pemantapan materi yang sebelumnya telah diajarkan oleh guru di sekolah masing masing. Kontribusi program ini merupakan pengadaan pendampingan belajar diluar jam sekolah siswa siswi. Program ini menemukan bahwa dengan pendampingan belajar diluar waktu sekolah, siswa siswi dapat lebih memahami materi pembelajaran dan meminimalisir rasa jenuh dalam proses belajar.

The pandemic causes the mobility of community activities decreased. Schools from elementary to university levels are conducted online. Students easily feel bored in the learning process and find it difficult to understand the material being taught. Teachers also have difficulty in teaching students with various kinds of obstacles. The aim of the Teaching Village program is to provide learning assistance for elementary school children in the RW 04 Suko Village area by strengthening the material previously taught by teachers in their respective schools. The contribution of this program is the provision of learning assistance outside of school hours for students. This program found that with learning assistance outside of school time, students could better understand the learning material and minimize boredom in the learning process.