bluuebunny/crossref_metadata_2025 huggingface dataset:
Critical role of water on the synthesis and gelling of gamma-In2S3 nanoribbons with giant aspect ratio
Authors: Guillemeney Lilian , Lermusiaux Laurent , Davidson Patrick , Hubley Austin , Pierini Stefano , Pierucci Debora , Patriarche Gilles , Canut Bruno , Lhuillier Emmanuel , Mahler Benoit , ABECASSIS Benjamin
Published: June 2022

We report the synthesis of ultrathin indium sulfide In2S3 nanoribbons which display a giant aspect ratio using a simple and fast solvothermal method. They have a sub-nanometer thickness controlled at the atomic level, a width of (8.7 ± 0.1) nm and a length which can reach several micrometers. We determine the atomic composition of the inorganic core by Rutherford backscattering spectrometry (RBS) and measure by X-ray photoelectron spectrometry (XPS) an oleylamine surface coverage of 2.3 ligands per nm2. X-ray diffraction experiments and simulations as well as high-resolution dark-field STEM point toward a P3m1 trigonal crystallographic structure (g phase). Transport measurements show that the nanoribbons display n-type semiconductor unipolar behavior. Their lateral dimensions can be tuned by reaction time, temperature and by the amount of water present in the reaction medium: anhydrous synthesis conditions lead to hexagonal nanoplates, whereas controlled addition of water induces a symmetry break yielding long rectangular nanoribbons. Depending on the dispersion solvent, these long ribbon-like nanoparticles can form either well-dispersed colloids or bundles in which they stack face-to-face. Their large aspect ratio induces the formation of gels at volume fractions as low as 1.3 × 10-4 making them supergelators. The kinetics of gelation is strongly accelerated by an increase in the relative humidity of the ambient atmosphere.
A square nano-array formed by surface aligned self-assembly of a bicontinuous lipid cubic phase
Authors: Parsons Edward , Mason Eleonore , Góźdź Wojciech , Seddon John , Brooks Nicholas , Connell Simon , Squires Adam , Tyler Arwen
Published: June 2022

We present the formation of oriented thin lipid films belonging to the primitive (Q_II^P) bicontinuous cubic phase, as characterized by grazing-incidence small angle X-ray scattering and atomic force microscopy. The phase shows high out-of-plane orientation with the (100) plane parallel to the substrate; this is consistent across a number of different lipid and surfactant systems. We demonstrate that the adopted orientation can be predicted using a theoretical framework, based on the most favorable facet in terms of curvature energy whilst assuming a closed bilayer. Significantly, the Primitive bicontinuous cubic phase is unique in that it contains straight water channels, with the [100] orientation presenting a square array at the surface with the straight channels running directly parallel and perpendicular to the interface. Moreover, by tuning the composition we show that we can tune the periodic pore-to-pore spacing (lattice parameter) of the structure with control over nanostructure dimensions. We present structures with lattice parameters between 13 and 23 nm. These structural features are important for applications including delivery of bioactive agents, and patterning and templating of inorganic nanomaterials. These findings represent a route to square arrays of nanofeatures with 2 3 times smaller periodicity (4-9 times higher per-area density) than those reported from block copolymer lithographic template systems.
Desarrollo de competencias digitales en docentes de la Universidad Nacional Santiago Antúnez de Mayolo en tiempos de Covid-19
Authors: Julca Guerrero Félix Claudio , Nivin Vargas Laura Rosa , Vilca Mallqui Karina Soledad , Quispe Gómez Maximiliana
Published: June 2022

El artículo analiza las competencias digitales en docentes de la Universidad Nacional Santiago Antúnez de Mayolo en la planificación y desarrollo de clases virtuales en el marco del Covid-19. Para dicho fin se realizó una investigación descriptiva con un diseño no experimental transeccional, con una población de 494 docentes de 11 facultades, donde la muestra estuvo constituida por 118 docentes entre nombrados y contratados, así como entre varones y mujeres: 56 del área de Ciencias e Ingeniería y 62 del área de Sociales y Letras. Se utilizó como técnicas la encuesta y el análisis documental. Los resultados muestran que los docentes incorporan diferentes recursos y herramientas digitales para las actividades pedagógicas síncronas y asíncronas; asimismo, registran competencias digitales similares, siendo el conocimiento y la capacitación informacional las más desarrolladas.
A Mixed-Lipid Diet (Medium-Chain and Long-Chain Triglycerides) for Better Tolerability and Efficiency in Pediatric Epilepsy Patients
Authors: Yu Rita , Lee Eun Joo , Lee Joon Soo , Kang Hoon-Chul , Kim Heung Dong
Published: June 2022

Purpose: In the past, the use of medium-chain triglycerides (MCTs) for a ketogenic diet (KD) was expected to improve both patients’ and caregivers’ adherence to treatment, but many gastrointestinal problems have been reported. Through a calculated partial administration of MCTs in a KD, we aimed to reduce these complications, while maintaining acceptable seizure reduction. Methods: At a tertiary referral center for pediatric patients with epilepsy, MCT oil was given in a 1:1 ratio with long-chain triglycerides to patients on KDs. Patients who began the diet from February 2019 to February 2020 were reviewed retrospectively, and 47 patients with at least 3 months of follow-up records were enrolled in the studyResults: Overall, 29.8% of patients on a KD with an adjusted MCT ratio experienced complications, such as gastrointestinal symptoms and behavioral food refusal, compared to 63.0% of prior KD patients. The mean seizure reduction rate was 68.45%±40.61%, which was not significantly different from the comparison group’s rate of 64.84%±34.24%. Conclusion: Adjusted MCT incorporation into a KD showed comparable seizure control results, with better tolerability of the diet.
Embedding Critical Reflection in Legal Education
Authors: Susler Ozlem , Babacan Alperhan
Published: June 2022

The literature of higher education widely notes the importance of reflection and reflective practice as a critical aspect of professional practice. This enables learners to act and think professionally by combining theory and practice. As such, many teaching and learning strategies and activities to enhance reflection have been incorporated into professional degrees. Notwithstanding the support for reflective practice, critical reflection remains a contested concept with a lack of consensus as to its definition and best practice. The frameworks chosen by higher institutions may be influenced by course context, ideology and expectations around the course/unit learning outcomes. This paper commences with a discussion of reflection and critical reflection. By examining different notions of reflection, the paper will discuss why the concept of critical reflection is important for practitioners in the 21st Century. It is advanced that critical reflection can encourage learners to better understand professional practice by linking discipline knowledge and theories to professional practice and wider insights. Whilst reflective practice is a desirable capability for law graduates, legal education in Australia largely fails to incorporate and assess critical reflective skills, as it is directed at producing a technically skilled and ideologically compliant legal workforce. The authors advance that adherence to a solely doctrinal approach to legal education is no longer justified in the 21st Century, which is characterised by profound change and uncertainty that impacts on the legal profession and society at large. Law schools have a positive role to play in the education of their students through instilling doctrinal knowledge, professional practice skills and critical thinking skills, which foster an understanding and analysis from multiple perspectives, to ensure that law graduates are able to holistically understand the reasons for changes within their profession and effectively adapt to change through informed choices. The final part of the paper outlines how critical reflection can be implemented in legal education.
Effect of unseasonal rainfall on rice production in Nepal during the year 2021: A case study
Authors: Malla Santoshi , Bista Lal , Rosyara Uttam , Sapkota Birat
Published: June 2022

Our study explicit the information regarding the status losses and the compensation amount We browsed the website of Ministry of Agriculture and Livestock Development (MoALD) and visited Agriculture Knowledge Centre to obtain the information. Rice is a major cereal crop, contributing around 25% of GDP and majority of working population are engaged in rice production for at least half year. Increasing population and pernicious natural hazards had declined the rice production leading to increment in import of rice from neighboring countries. Nepal received 15% more rain than average monsoon in year 2021.  Flooding in various areas of Nepal occurred, causing huge loss of rice production along with destruction of lives and property indirectly leading to food insecurity. The onset of heavy unseasonal monsoon, occurred at the period when rice crops were ready to harvest or ready to thresh, undermined the labor, time and money invested by the farmers. The total rice production has been reduced to 5.13 million tons in 2021 from 5.55 million tons in 2020 at the rate of 8.74%. Lumbini Province faced the highest loss, followed by Sudarpaschim Province of Nepal. Climate change was the major factor responsible for this, hampering the agricultural productivity. Government of Nepal had decided to provide compensation to them based on three categories: small farmers having holdings of up to 10 katthas received compensation of 65% of their cost of production ,  medium farmers having land holdings from 11 to 40 katthas received 30% of their cost of production ,the large farmers having land holdings more than 40 katthas received compensation 20% of their cost of production. Also, the partially affected farmers received compensation 20% of their cost of production.
Capacity strengthening of fish farmers for improving their livelihood in Mymensingh district of Bangladesh
Authors: Zohra Fatema Tuz , Haque Shahroz Mahean , Sheheli Shonia , Rana Md. Masud
Published: June 2022

This study examines the capacity strengthening status for improving the livelihood of fish farmers of Muktagacha upazila (sub-district) of Bangladesh. A mix method research design was used to collect data from 70 fish farmers of the study area. Nine selected demographic characteristics of the respondents were age, level of education, household size, farm size, fish farming experience, training received on fish farming, access to credit, extension media contact and organizational participation. Findings reveal that half of the respondents (50%) had moderate level of capacity strengthening score while considerable portion of the respondents (36%) had high level of capacity strengthening score. The livelihood status of fish farmers improved to a great extent in five aspects of livelihood (human, social, natural, physical and financial) due to the creation of income generating opportunities after their involvement in fish farming. This study concludes that fish farming has major contributions for the capacity strengthening of fish farmers for improving their livelihood status.
Wastewater treatment using coconut fibre ash as an adsorbent for removal of heavy metals
Authors: Jolly Fahmida Akter , Abedin Md. Zainul , Muyen Zahida
Published: June 2022

The study aimed at evaluating the performance of coconut fibre ash as an alternative low-cost adsorbent to the synthetic adsorbents used in wastewater treatment. This research aims to identify the optimum condition for the adsorption process, considering the effect of particle size, adsorbent dosage, and contact time of adsorbents of coconut fibre ash in removing lead (Pb), copper (Cu), and zinc (Zn) metal ions from electroplating wastewater. The adsorbents coconut fibre ash was prepared through activation of carbon at 450º C after following proper cleaning and drying process. The experiments were conducted at varying adsorbent dosages (0.2 g, 0.6 g, and 1 g), particle size (50 to 200 microns), and contact times (40 minutes, 80 minutes, and 120 minutes). The result shows that adsorbents show less efficiency in removing Zn metal ions, which is not more than 34% in the case of 1g adsorbent dosage, particle size ranges 100-200 microns, and 120 minute contact time. The maximum removal efficiency of 95.04% and 80% was obtained at the optimum amount (1g) of adsorbent dosage for Pb and Cu respectively. In the case of contact time, it was identified that the optimum condition for maximum removal efficiency is 120 minutes with a 1g adsorbent dosage both for Pb and Cu ions. To ensure maximum removal of metal avoiding any desorption of the metal ion from the adsorbent surface, it was identified that a maximum contact time of 120 minutes should be allowed for adsorption. However, it could be concluded that adsorbents of coconut fibre ash can be used in treating wastewater facilitating good adsorption capacity in removing heavy metals, low cost and availability.
A Study on the Relationship between Insider Trading and Stock Repurchase Firms
Authors: Park Jung Ji , Shin Jung Soon
Published: June 2022

This study analyzes insider trading and stock price reactions before and after announcements of stock repurchases and empirically analyzes whether additional information could be provided to the market. In addition, the market response to stock repurchase announcements was analyzed to verify whether there was a difference in the entire stock market, KOSPI market, and KOSDAQ market. By examining insider trades in the stock market from 2005 to 2014, we verified that insider trading is affected by the degree to which company’s stock is undervalued. In addition, the market response to the disclosure of stock repurchase was positive, confirming that companies perceived stock repurchase as a good signal. In particular, the market reaction to stock repurchase in the KOSDAQ market is statistically significant, while that in the Kospi market is not. Finally, in all stock markets, if insider trading behavior before the announcements of stock repurchase for undervalued purposes is a strong selling position, there is no significant long-term return, indicating that market information is an incorrect signal. These findings provide evidence that insider trading behavior around stock repurchases can be used as an additional signal.
AS NOVAS CONFIGURAÇÕES PARA O ENSINO DE SOCIOLOGIA FRENTE A BASE NACIONAL COMUM CURRICULAR PARA O ENSINO MÉDIO
Authors: Campos Elizabeth José
Published: June 2022

Este artigo tem como objetivo analisar os objetivos educacionais quanto ao ensino da disciplina Sociologia, historicamente construídos, e suas possíveis implicações no presente, frente as novas formulações legais para o ensino médio, BNCC (2018), enfatizando o desenvolvimento de competências e habilidadespara as decisões pedagógicas do ensino. São utilizadas produções teóricas sobre politicas de currículo, assim como as produções de diferentes autores sobrea história da inserção da Sociologia no ensino médio. Tais questões, destaca que a movimentação do discurso curricular, relacionada ao discurso das diretrizeseducacionais, criando diferentes modalidades de praticas pedagógicas, constitui-se um desafio no debate sobre quais são os objetivos educacionaisdo ensino da disciplina. Neste contexto aponta a necessidade de uma reflexão para construção de novos olhares sobre a matriz curricular que venha atendera ligação entre o ensino de Sociologia com suas ferramentas científicas, articulado com um currículo pedagogicamente impulsionado de novas tendências detemas transversais.
Interventions with men for gender equity: criticism of individualizing approaches
Authors: Nascimento Fonseca Vanessa
Published: June 2022

The article makes a brief mapping of how interventions with men have been configured since the 1970s, analyzing the individualizing and behavioral character that has been built for this type of work, based on feminist criticisms that differentiate patriarchy from sexist behavior. We start from the assumption that men are important allies in facing the harmful effects of gender. However, in addition to thinking about their male chauvinistic behaviors, among themselves, seeking individual compensation arising from the changes of male chauvinism, their engagement in the fight against a system that articulates different power relations, normalizing subjects from colonial, capitalist, intersected cisheterosexuals and sexists.
SUSTAINABLE DEVELOPMENT BASED ON DIGITAL TECHNOLOGIES IN CONSTRUCTION
Authors: Ignatova Elena , Matyuhina Marina , Smorzhenkov Nikita
Published: June 2022

The article discusses the joint application of building information modeling technology and other digital technologies for sustainable construction. Building information modeling technology allows to generate and update a set of data about construction object, and then analyze and use this data throughout the building life cycle. Building information model (BIM) is based on geometric shape. It possible to organize the exchange of BIM data with other digital technologies based on geometric data processing, such as virtual and augmented reality (VR & AR), additive manufacturing (3D printing), generative design technologies. Based on the BIM datal, it is possible to analyze the economic, energy, environmental and social characteristics of the construction object. BIM data is used to assess the compliance of the object with the criteria of "green construction". All these technologies can be used in the tasks of ensuring sustainable construction. The purpose of this study is the integration of digital technologies to ensure the principles of sustainable development in construction. Examples of completed works based on digital technologies together with information modeling of residential buildings are given. An experiment was conducted to create augmented reality based on BIM data. An experiment on 3D printing of a cottage layout was carried out. The algorithm of generative design of the building ramp for low-mobility groups of the population is proposed. A method of using generative design technology in conjunction with standard and modular construction is proposed. The conclusion is made about the advantages of the integrated use of digital technologies.
Türkiye’de Yap-İşlet-Devret Tipi Ulaştırma Projelerinde Karşılaşılan Risklerin Belirlenmesi ve Değerlendirilmesi: Vaka Çalışmaları
Authors: KURUL Buse , ATAKUL Nur
Published: June 2022

Yap-İşlet-Devret modeli (YİD) ile kamu hizmetlerinin sağlanmasında dünyada öncü ülkelerden olan Türkiye’de, giderek artan kentsel nüfusa bağlı olarak özellikle ulaştırma yatırımlarına olan ihtiyaç artmaktadır. YİD modelleri, bünyesinde projenin başarısını etkileyen çok sayıda riski barındırmaktadır. Bu risklerin tanımlanması; tanımlanan risklere yönelik yanıtların geliştirilerek doğru risk paylaşımlarının yapılabilmesi için önem arz etmektedir. Çalışmada, Türkiye’de YİD modeliyle gerçekleştirilmiş üç güncel ulaştırma projesinde karşılaşılan risklerin tanımlanması ve tartışılması amaçlanmıştır. Çalışmanın sonucunda; üç projede ortak olarak, finansman temini ile ilgili ve fizibilite çalışmalarının yetersizliğinden kaynaklanan problemler nedeniyle projelerin kapsamında ve tarafların risk paylaşımlarında değişikliklere gitmek durumunda kalındığı anlaşılmıştır. Yaşanan problemlere rağmen projelerin kararlılıkla hayata geçirilmesi, ülkede YİD projelerine yönelik güçlü bir politik desteğin olduğunu göstermektedir. Ancak, YİD projeleri için en kritik risk faktörü olan “öngörülen piyasa talebine ulaşılamaması”, bu projelerde de söz konusu olmuştur. Yol projelerinde, geçiş ücretleri ve farklı alternatiflerin bulunması talebi etkilemiş olup; projeler tamamlandıktan kısa süre sonra ortaya çıkan Covid-19 salgınına bağlı dünya genelindeki kapanmaların, beklenen gelirlerin sağlanamamasının esas nedeni olduğu düşünülmektedir. Türkiye’deki YİD ulaştırma projelerinin fizibilite aşamasında çevresel, teknik ve ekonomik açılardan kapsamlı olarak değerlendirilmesi; yapım ve işletme süresince karşılaşılan problemlerin minimuma indirilmesinde temel teşkil etmektedir.
TÜRKİYE’DE GİRİŞİMCİLİĞİ ETKİLEYEN FAKTÖRLER
Authors: GÜVEN Oktay
Published: June 2022

Bu çalışma girişimciliğin Türkiye’de bölgeler arasında neden farklı düzeylerde geliştiğini ortaya koymak amacıyla yapılmıştır. Araştırma kapsamında Türkiye İstatistik Kurumu ile Hazine ve Maliye Bakanlığı veri tabanından elde edilen ikincil nitelikteki veriler kullanılmıştır. Bu veriler çok değişkenli regresyon metodu kullanılarak Eviews ve SPSS programları aracılığıyla analiz edilmiştir. Araştırma sonucunda illerde yaşam endeksi, iyi eğitimli nüfusun toplam nüfusa oranı ve nüfus yoğunluğunun girişimciliği anlamlı düzeyde etkilediği tespit edilmiştir. Ayrıca araştırma sonuçları, girişimcilerin ihtiyaç duyduğu altyapı ve bugünün insanının talep ettiği sosyal donatılar oluşturulmadan bir bölgede veya ülkede girişimciliğin gelişmesinin mümkün olmadığına işaret etmektedir.
Paris gisant sous « le démon de l’électricité » : une lecture de Paris au XXe siècle (1863) de Jules Verne
Authors: Ayed Kawthar
Published: June 2022

Paris au XXe siècle, roman de Jules Verne censuré par son éditeur Hetzel et de ce fait peu connu, trace les contours d’un monde cauchemardesque où l’homme est piégé par le progrès, l’industrie et l’économie. Aux fondements de la société futuriste imaginée par l’auteur, Paris se mue en ville tentaculaire abritant des automates dotés de cœurs industriels qui méprisent l’art et répugnent les artistes. Le personnage principal, poète déchu rejeté et par sa famille et par la société, se mue en anti-héros et tourne en rond dans une ville qui gît sous le poids écrasant du « démon de l’électricité » et où seuls scientifiques, industriels et banquiers triomphent. Le dégoût et le désenchantement marquent l’œuvre de bout en bout l’enfermant dans une circularité qui reflète celle de la ville, concentrique, dont on ne peut échapper que pour trouver la mort.
De l’homme machine à l’homme social, la ville industrielle dans Sans Famille et En Famille d’Hector Malot
Authors: Charderon Hélène
Published: June 2022

La question sociale est au cœur de deux œuvres littéraires pour enfants d'Hector Malot - Sans Famille, roman publié en 1878, et En Famille, roman publié en 1893. Dans ces deux textes, l’auteur nous donne à lire les aventures de jeunes enfants qui sont confrontés à la ville industrielle au cours de leur cheminement. Observateur critique de son époque, Hector Malot met en texte tout un réseau de représentations qui opposent la campagne paradisiaque et l’enfer de la ville industrielle, d’une part, et la déchéance sociale et le besoin imminent de réforme, d’autre part. Cet article se propose d’interroger le message social véhiculé par le prisme du regard des enfants qui observent la société industrielle dans laquelle ils évoluent. Sans Famille et En Famille sont les deux seules œuvres pour enfants dans lesquelles Hector Malot fournit autant de détails sur l’impact de l’industrie non seulement sur le paysage français, mais aussi sur le cœur des hommes. Comme leurs titres respectifs le soulignent, nous pouvons retracer une véritable continuité entre ces deux romans : tout se passe comme si En Famille était le prolongement et l’aboutissement de la réflexion sociale amorcée dans Sans Famille.
Effect of Covid-19 on the Socio-Economic Well-Being of Households in Nigeria
Authors: Kanu Joy Chinyere , Oguntomi Emmanuel Busuyi , Ajayi Babajide A
Published: June 2022

This study investigated the effect of COVID-19 on the socio-economic wellbeing of households in Nigeria. The main objective was to investigate the effect of COVID-19 on households' income, employment, expenditure and savings in Ayobo-Ipaja Local Council Development Area of Lagos State, Nigeria. The descriptive nonexperimental qualitative study used structured questionnaire to collect data from men and women of working ages between 25 and 65 in Ayobo-Ipaja. Convenience non-probability random sampling technique was used to select 384 participants. The data were analyzed using frequency, percentage, mean, standard deviation and chi-square test. The chi-square results revealed that COVID-19 outbreak has significant effect on households' income, employment, expenditure, and savings in Ayobo-Ipaja Local Council Development Area of Lagos State, Nigeria. It is recommended that government should intensify policy efforts towards economic growth recovery and poverty alleviation programs for increased social inclusion by creating jobs and providing support for the vulnerable citizens
Predicting Local Brand Acceptance in the Leather Products Market
Authors: Tjahjawati Sri Surjani , Purwaningsih Siti Samsiyah , Amalia Sholihati
Published: June 2022

The purpose of this paper is to analyze the local brand acceptance theoretically and practically and develop an integrated model that explains local brand acceptance in the local leather product market in Indonesia. The data is collected from 297 respondents, namely buyers of local leather brands in Indonesia. Structural Equation Model–Partial Least Square (SEM-PLS) analysis was conducted to analyze the relationship between constructs. Importance-performance map analysis (IPMA) is used to analyze which constructs have the highest level of importance to local brand acceptance and price acceptance. The results show that price acceptance is influenced by product involvement, product knowledge, and prestige sensitivity. Local brand acceptance is only influenced by product involvement and price acceptance. The IPMA results show that product involvement has the highest level of importance to price acceptance. Price acceptance has the highest level of importance to local brand acceptance. This is one of the first studies that predicts local brand acceptance and price acceptance in the local leather product market in Indonesia and clarifies the role of product knowledge, product involvement, prestige sensitivity on their effect on local brand acceptance and price acceptance.
Innovare la didattica universitaria fra vincoli e opportunità. Un’esperienza di peer feedback con i futuri insegnanti
Authors: Montalbetti Katia , Orizio Enrico
Published: June 2022

The outbreak of the pandemic has prompted universities to make a substantial technological upgrade in order to continue pursuing their educational goals. Further, both the overall operation of the system and teaching practices have been revised. This contingency was taken by the authors as an opportunity to redesign the “Educational research methods” course, experimenting with innovative student-centered educational methodologies. There has been a development in the experience of peer feedback supported by digital tool self & peer assessment embedded in the university’s Learning Management System. Given its innovative nature it was considered appropriate, consistent with the perspective of educational evaluation adopted in the course, to detect students’ perceptions regarding the process experienced by administering a questionnaire. The evidence collected recognizes that the peer review was successful and lays the groundwork for proposing it again in the future with appropriate adjustments.
Impact of rice husk ash on compressed cement-lateritic brick durability and microstructural characteristics
Authors: Adeyemi Ezekiel Adetoro  , Akinkunmi Silas Oladapo  , Kayode Dele Oluborode
Published: June 2022

One of the potential ways to lower building costs and improve the quality of the environment in both urban and rural regions is to use local resources as a substitute for cement in building construction. The purpose of this study was to determine how Rice Husk Ash (RHA) affected the morphology and durability of cement-lateritic bricks. Analytical techniques were utilized in the lab to ascertain the RHA's chemical make-up. Compressed Earth Bricks (CEB) were created by employing water content of 20 to 25 percent and replacing 0 to 5 percent of the cement with 0 to 5 percent of RHA. Response Surface Methodology (RSM) of Design Expert software was used to create seventeen (17) variables for the CEB manufacture.The created CEBs underwent compressive strength and microstructural studies in the lab after being cured for 28, 56, and 108 days. According to the results, RHA is a powerful pozzolan with a high SiO2 concentration that might potentially replace non-renewable silica as one of the primary cement sources of oxide that pozzolans react with. Most samples exhibit an increase in compressive strength with longer curing times and have a minimum strength of 1.65 N/mm2 or higher.The microstructural study of the pozzolan revealed that it contains tiny particles. Consequently, as the curing age increased, the porosities decreased and the compressive strength of the stabilized bricks improved. In conclusion, the finest CEBs for building construction are those produced with 1.25 percent RHA and 23.75 percent water content.
The importance of publishing in journals that are not yet indexed in Scopus, PubMed or WOS
Authors: Carlos Navarro Venegas
Published: June 2022

Journals indexed in SCOPUS, PUBMED or WOS have had supremacy since long ago. Publishing in them has a sudden importance and with brush strokes of immortality. Not doing it in them sounds like mediocrity. However, no one is born knowing and today there are many other journals indexed to other search engines or not inconsiderable Internet media and that over time will amaze us like a third world war that has already begun. The impact indices will be attributed to "new" journals, which have had high visibility over the years, through -for example- the internet.
Sustainable Development Goals in the Andalusian olive oil cooperative sector: Heritage, innovation, gender perspective and sustainability.
Authors: Antonio Parrilla González Juan , Ortega Alonso Diego
Published: June 2022

The Sustainable Development Goals (SDGs) represent a commitment to sustainability through innovation, sustainable economic growth and the diversification of economic activities. The social economy and the revaluation of rural heritage play a fundamental role in implementing and progressing towards these goals, especially in agri-food cooperatives. In the case of the Spanish olive oil industry, a substantial percentage of the business in olive oil producing areas revolves around the social economy: 70% of the olive oil produced in Spain is made by cooperatives. For these cooperatives, the implementation of the SDGs offers them a potential tool for sustainable development, diversification and the economic growth of their businesses. This article focuses on analysing the relative importance of the SDGs in the olive oil cooperative sector in Andalusia, using the Qualitative Comparative Analysis (QCA) technique and applying the fuzzy-set approach (fsQCA) to the tenets of the SDGs. Lastly, causal models have been established, the practical implications of which centre on the implementation and development of the SDGs as a means of achieving the sustainable economic growth of these enterprises. The main findings of this study suggest that the sustainable development goals on which the cooperative societies analyzed are focused, in addition to producing olive oil, promote values linked to food security, sustainability, the showcasing of heritage, and gender equality.
L’impiego di elementi naturali nei rituali affini alla teurgia
Authors: Freni Giulia
Published: June 2022

In the theurgic rituals attested by the Chaldean Oracles and other writings related to Neoplatonism plants, animals and stones were often used to evoke a certain divinity. The theurgicvisof these practices results also from other works, which allow us to know a wide range of traditions that influence each other.
Do Students Value On-Campus Field-Based Education? A Case Study of Science Educational Initiatives in the Jock Marshall Reserve
Authors: Chapple David G. , Wilson Laura , Herbert Rosemarie I. , San Martin Ricardo , Weir Bruce , Ho Susie
Published: June 2022

Fieldwork, known for fostering more engaging and authentic learning experiences, is an established tradition in higher education which is changing; increasingly run on-campus for financial and logistical reasons and enhanced through education technologies to reflect industry practices. Here we examine student perceptions of on-campus fieldwork with the aim of understanding if on-campus fieldwork was valued and why, to be able to compare against literature on off-campus fieldwork. We explore student views on activities at the Jock Marshall Reserve, an on-campus nature reserve of Monash University, Australia using mixed-methods approach. An online survey targeted students undertaking four subjects across first to third year and received 116 responses. In alignment with off-campus fieldwork studies, we found that overwhelmingly respondents highly valued fieldwork with dominant reasons being; 1) developed skills relevant to ‘real-world’ science, 2) reinforced theoretical learning, and 3) was more engaging than traditional study, with some benefits to their wellbeing. The novel perceptions related to increased convenience and authenticity. Since a majority of respondents wished to undertake on-campus fieldwork more frequently, this study suggests that the inclusion of on-campus fieldwork should be considered within science curriculum in higher education.
Yeni Bir Organoboron Monomerinin Sentezi, Elektrokimyasal Karakterizasyonu ve Biyosensör Uygulaması
Authors: YILDIRIM TİRGİL Nımet , KALKAN Zeycan , ÖZTÜRK Soner
Published: June 2022

Bu çalışmada, enzimatik biyosensör sistemlerinde sentezlenen ve analiz edilen yeni bir organoboron bazlı monomer geliştirilmiştir. Doğrudan elektropolimerizasyon (tek adımlı) yöntemi kullanılarak, yeni organoboron polimer film kaplı platin ekran baskılı elektrotlar/camsı karbon elektrot ile bir elektrokimyasal enzimatik biyosensör sistemi geliştirildi. Yeni organoboron monomerinin elektropolimerizasyonu, çeşitli elektropolimerizasyon koşullarıyla gerçekleştirildi ve biyosensör sistemleri için en iyi koşullar sonucuna varıldı. Bu tezde geliştirilecek olan organoboron polimer bazlı enzimatik ve elektrokimyasal analizler, kimya ve tarım endüstrisinde en çok analiz edilen fenolik bileşiklerden biri olan katekolün tayini için kullanılacaktır. Örnek belirleme sistemi olarak tirozinaz enziminin kullanıldığı katekol analizi geliştirilmiştir. Geliştirilen biyosensör sistemi ile fenolik bileşenler farklı elektrotlarla 1 µM ile 200 µM arasındaki lineer aralıkta test edilmiştir. Biyosensör performans koşulları optimizasyonundan sonra, yüzde 3 ila yüzde 10 standart sapma aralığında kontrollü katekol katkılı yeşil çay örnekleri için gerçek örnek analizi de yapıldı. Son olarak, geliştirilen biyosensör sisteminin, gerçek zamanlı algılamaya izin veren taşınabilir bir son ürün olarak tasarlanıp ticarileştirilebileceği belirtilmelidir. Doğal gıdaların antioksidan ve antimikrobiyal aktivitelerini belirlemek için belirlenen fenolik bileşiklerin kısmen kalite kontrol analizleri kapsamında yapılmakta olup, geliştirilen organoboron polimer tabanlı biyosensör sistemi daha hızlı, daha ucuz, kesin ve gerçek zamanlı testlere olanak sağlayacaktır.
SCHIZOPHRENIA AND PSEUDOBULBAR AFFECT DISORDER IN THE FILM SCRIPT JOKER
Authors: Pratiwi Alfina Eka , Koiri Much
Published: June 2022

This study deals with schizophrenia, pseudobulbar affect (PBA) and negative responses of the community experienced by the main character of the Joker 2019 film, Arthur Fleck and the public's response to his illness. schizophrenia is a condition in which a person cannot distinguish between the real world and the world of fantasy or hallucination; while pseudobulbar affect (PBA) is a condition characterized by uncontrollable laughing or crying.Descriptive qualitative method to reveal the social features is applied to get relevant and precise data concerning the discussion based on the clinical psychology theory. Cinematography by listening to every scene in the film, showing Arthur Fleck's illness and the public's response to his illness is then used for the data collection procedures. The results show that the main character has got schizophrenia in the form of hallucination and pseudobulbar affect (PBA) in the form of inability to control his laughter and at the same time it is also found that the community gives negative responses upon the mental illness of the main character.
WOMEN’S IMAGES IN KARONESE SI BERU DAYANG FOLKLORE: CULTURAL ASPECTS
Authors: Marsella Emma , Putri Dian Marisha , Pawiro Muhammad Ali
Published: June 2022

The Si Beru Dayang folklore is one of the cultural heritages in North Sumatra, and it belongs to Karonese society. Such folklore is believed to entertain the Karonese who still retell it to young generation according to its function since it contains local wisdom. This research is aimed at discussing women’s images seen from the perspective of cultural aspects. Qualitative descriptive methods and interviews were used in this research. The data collection was obtained from recording and from informants’ oral responses when they were invited during interviews; data was discussed from the domains of sociology of literature and from cultural aspects. The sociology of literature was focused on a number of concepts of women’s images in the folklore. The results show that women are portrayed as anak beru (wife taker/daughter), ndehara (wife), and sirukatnakan (rice dipper) as symbols of origin of rice in Karo land, and as women in the merdang traditional ritual.
Stress distribution at different deformation degrees in low carbon steel during cold deformation
Authors: Brlić Tin , Lazić Ladislav , Franz Mladen , Jandrlić Ivan , Rešković Stoja
Published: June 2022

The temperature change, i.e. stresses of low carbon steel during the cold deformation process was investigated in this study. During static tensile test, temperature changes were examined using thermography at different deformation degrees. It was found that there are temperature changes in the deformation zone during the cold deformation. The increase in temperature changes in the deformation zone during cold deformation occurs with an increase in the deformation degree. The largest localization of temperature change was measured at the moment of the test sample fracture when the maximum temperature change was 8.45 °C. A higher amount of temperature change of 5.39 °C was determined at tensile strength compared to the proportionality limit amount of -0.97 °C. It was found that there are differences between the amounts of temperature changes in the range from 0.87 °C to 1.91 °C with increasing of deformation degree of the tested steel. Calculated stress amounts proved and show the tendency that stress amounts increase as the temperature change increases in low carbon steel by increasing of deformation degree during cold deformation. It was determined deviations of the calculated stress amounts due to using the mathematical model for low carbon with niobium at the start of plastic flow.
ВЛИЯНИЕ ДАВЛЕНИЯ НА ЗАДЕРЖКУ САМОВОСПЛАМЕНЕНИЯ МЕТАНОЭТИЛЕНОВОЗДУШНЫХ СМЕСЕЙ
Authors:   Федеральный исследовательский центр химической физики им. Н.Н. Семёнова Российской академии наук, ТРОШИН К.Я. , БЕЛЯЕВ А.А. ,   Федеральный исследовательский центр химической физики им. Н.Н. Семёнова Российской академии наук, АРУТЮНОВ А.В. ,   Федеральный исследовательский центр химической физики им. Н.Н. Семёнова Российской академии наук,   Московский государственный университет имени М.В. Ломоносова, ШУБИН Г.А. ,   Московский физико-технический институт (национальный исследовательский университет), НИКИТИН А.В. ,   Федеральный исследовательский центр химической физики им. Н.Н. Семёнова Российской академии наук,   Институт проблем химической физики Российской академии наук, АРУТЮНОВ В.С. ,   Федеральный исследовательский центр химической физики им. Н.Н. Семёнова Российской академии наук,   Московский государственный университет имени М.В. Ломоносова,   Институт проблем химической физики Российской академии наук
Published: June 2022

Методом самовоспламенения в статическом реакторе и кинетическим моделированием определены задержки самовоспламенения стехиометрических метаноэтиленовоздушных смесей в диапазоне начальных температур То = 760-1000 K и при давлениях Ро = 1 и 3 атм. Установлено, что повышение давления сокращает задержку самовоспламенения, не меняя общий характер ее зависимости от концентрации этилена в смеси. Эффективная энергия активации задержки самовоспламенения метаноэтиленовоздушных смесей в пределах ошибки определения слабо зависит от давления, что подтверждается кинетическими расчетами. Расчетные значения эффективной энергии активации хорошо согласуются с экспериментальными результатами.
О РАЗРАБОТКЕ ВОЗДУШНО-РЕАКТИВНОГО ДВИГАТЕЛЯ, РЕАЛИЗУЮЩЕГО ЦИКЛ ГОРЕНИЯ, ПРИБЛИЖЕННЫЙ К ДЕТОНАЦИОННОМУ
Authors:   Научно-производственная фирма «Ротор», МИГАЛИН К.В. , СИДЕНКО К.А. ,   Тольяттинский государственный университет
Published: June 2022

Представлены результаты работ по попытке создания детонационного воздушно-реактивного двигателя на базе простейшей формы реактивного двигателя - бесклапанного пульсирующего. Подкупающая простота конструкции подобных двигателей скрывает сложно организованный рабочий процесс, воздействуя на который, авторы добиваются выхода на режимы циклического горения, близкие к детонационным. Обсуждается возможный механизм инициирования детонационного горения.
МОДЕЛИРОВАНИЕ ГЕНЕРАЦИИ И РАСПРОСТРАНЕНИЯ УДАРНЫХ ВОЛН И ВОЛН СЖАТИЯ В ПУЗЫРЬКОВЫХ СРЕДАХ
Authors:   Национальный исследовательский ядерный университет МИФИ, ГУБИН С.А. , СВЕРЧКОВ А.М. ,   Научно-технический центр исследований проблем промышленной безопасности, СУМСКОЙ С.И. ,   Национальный исследовательский ядерный университет МИФИ
Published: June 2022

Предложены модель и численный метод для расчета распространения ударных волн/волн сжатия в пузырьковой среде в протяженных трубопроводных системах. Модель рассматривает процесс в одномерном приближении, исходя из механического, теплового, скоростного и фазового равновесия системы «паровые пузырьки -жидкость». Численная реализация предложенной модели осуществлялась с использованием подхода С. К. Годунова. Модель с хорошей точностью воспроизводит имеющиеся экспериментальные данные по структуре и параметрам циркулирующих волн в сплошной/пузырьковой среде. Показана возможность генерации ударных волн в потоках с переменными высотными отметками при распространении в них ударных волн/волн сжатия в случае появления кавитации и последующего схлопывания кавитационных зон. Данный эффект можно рассматривать как локальный гидроудар, при «классическом» гидроударе поток тормозится на закрытых задвижках. Расчетным путем показано, что схлопывание кавитационных зон с генерацией волн давления приводят к усилению нагрузок на трубопровод: возникающие давления в 1,5 раза больше по сравнению с «классическим» гидроударом.
ЛОКАЛЬНЫЕ СКОРОСТИ ФРОНТА ОЧАГОВ ГОРЕНИЯ ОКТОГЕНА
Authors:   Федеральный исследовательский центр химической физики им. Н.Н. Семёнова Российской академии наук, МАРШАКОВ В.Н. , МЕЛИК-ГАЙКАЗОВ Г.В. ,   Федеральный исследовательский центр химической физики им. Н.Н. Семёнова Российской академии наук
Published: June 2022

Исследован механизм горения октогена (НМХ) при давлениях 0,5-50 атм. Показано, что октоген горит в очаговом режиме. В работе «Механизм горения октогена» Маршакова В. Н., Крупкина В. Г., Рашковского С. А. (Хим. физика, 2020. Т. 39. № 11. С. 23-28. doi: 10.31857/S0207401X20110114) определен масштаб неодномерности поверхности горения - характерный размер очагов. Получена зависимость размера очагов от средней скорости горения образца. В настоящей работе анализируются температурные распределения в волне горения, полученные с использованием термопар. Из анализа температурных распределений в конденсированной фазе (близости к михельсоновскому распределению) получены значения локальных скоростей горения. Показано, что разброс значений скоростей объясняется регистрацией скорости в различных точках фронта поперечной волны. Значения локальных скоростей, больших средней скорости горения, связаны с повышенной начальной температурой перед фронтом, а меньших - с кривизной фронта и потерей устойчивости режима.
ОЦЕНКА ВЛИЯНИЯ КОНЦЕНТРАЦИИ ПАРОВ ВОДЫ В ПОДОГРЕТОМ ПРИ СТЕНДОВЫХ ИСПЫТАНИЯХ ВОЗДУХЕ НА ХАРАКТЕРИСТИКИ РАБОЧЕГО ПРОЦЕССА В МОДЕЛЬНОЙ КАМЕРЕ СГОРАНИЯ С ЭНЕРГОЕМКИМ КОНДЕНСИРОВАННЫМ МАТЕРИАЛОМ
Authors:   «ФГБУ «ЦИАМим. П.И. Баранова», СУРИКОВ Е.В. , ШАРОВ М.С. ,   «ФГБУ «ЦИАМим. П.И. Баранова», КОЛОМЕНЦЕВ П.А. ,   «ФГБУ «ЦИАМим. П.И. Баранова», АЛЕКСЕЕВА О.М. ,   «ФГБУ «ЦИАМим. П.И. Баранова», ФЕДОРЫЧЕВ А.В. ,   «ФГУП «ФЦДТ «Союз», ЖЕСТЕРЕВ Д.В. ,   «ФГУП «ФЦДТ «Союз»
Published: June 2022

Представлены результаты экспериментальных исследований по оценке влияния концентрации паров воды в подогретом до 550 К воздушном потоке, которые могут образоваться при работе водородного огневого подогревателя (ОП), на рабочий процесс в камере сгорания (КС) модельной установки с энергоемким конденсированным материалом (ЭКМ). Показано существенное влияние содержания паров воды на шлакование поверхностей теплозащитного покрытия (ТЗП) и теплообмен со стенками в КС. Установлено снижение коэффициента полноты сгорания ЭКМ при наличии 2-3 %(масс.) паров воды в воздушном потоке в заданных условиях.
МОДИФИЦИРУЮЩЕЕ ВОЗДЕЙСТВИЕ СИЛ ВРАЩЕНИЯ НА МЕХАНИЗМ ПРОЦЕССОВ ВО ФРОНТЕ ВОЛНЫ САМОРАСПРОСТРАНЯЮЩЕГОСЯ ВЫСОКОТЕМПЕРАТУРНОГО СИНТЕЗА МЕТАЛЛОТЕРМИЧЕСКИХ СИСТЕМ ПРИ СИНТЕЗЕ НЕОРГАНИЧЕСКИХ МАТЕРИАЛОВ
Authors:   Институт проблем горения, КСАНДОПУЛО Г.И.
Published: June 2022

Представлен механизм модифицирующего воздействия сил вращения на структуру фронта СВС-волны (СВС - самораспространяющийся высокотемпературный синтез) в цилиндрическом реакторе со спрессованной алюмотермической смесью, вращающемся вокруг вертикальной оси. Показано, что под действием центробежных сил частицы восстанавливаемого металла, возникающие во фронте волны горения, перемещаются в область перед фронтом и инициируют новые очаги воспламенения в свежей смеси, увеличивая скорость распространения СВС-волны. Показано, что этот процесс открывает возможности синтезановыхнеравновесныхнеорганическихсоединений, обладающихвысокотемпературной устойчивостью и совокупностью востребованных свойств. В качестве примера показано модифицирующее воздействие добавок неорганических радикалов (0,036% AI20B4O36) на процесс кристаллизации расплава силумина со значительным уменьшением размеров кристаллов в остывшем расплаве.