bluuebunny/crossref_metadata_2025 huggingface dataset:
Использование реляционных баз данных для организации контролируемого реверс-инжиниринга
Authors:   Южно-Уральский государственный университет, Логиновский О.В. , Максимов А.А. ,   Государственная Дума Федерального Собрания Российской Федерации VIII созыва, Захаров В.В. ,   Южно-Уральский государственный университет, Щемлев М.В. ,   Южно-Уральский государственный университет
Published: November 2022

Машиностроение – главная отрасль промышленности, уровень её развития определяет научно-технические возможности и потенциал страны, определяет качество человеческого капитала, а также она является основой для поддержания обороноспособности государства. Как правило, для успешного функционирования в данной отрасли широко используются возможности кооперации с контрагентами как на внутреннем, так и на внешнем рынке. В настоящее время Россия имеет зависимость от продукции иностранного машиностроения, она наблюдается во всех областях данной сферы – общем, тяжелом, среднем, легком, точном и энергетическом машиностроении. По причине усиления санкционного давления недружественных государств возможности импорта необходимых изделий и комплектующих неуклонно снижаются. Особенную тревогу вызывает ситуация зависимости от импорта системообразующих и оборонных предприятий, а также предприятий, обеспечивающих государственную деятельность. В связи с этим требуется ускорение реализации политики импортозамещения с применением реверсивного инжиниринга. Данный метод показал свою состоятельность, так как был использован ведущими промышленными державами. Цель исследования: обосновать важность реверсивного инжиниринга как инструмента реализации политики импортозамещения, показать возможности его контроля и ускорения процедуры его проведения с использованием реляционной математической модели. Реляционная математичнская модель построена на основе правил реляционной алгебры. Методы. Выявлена хронология возникновения зависимости России от импортных комплектующих, на примере опыта Китая обоснована важность реверсивного инжиниринга. Результаты. Зависимость России от импорта берет свое начало еще со времен Советского Союза. Предложена реляционная модель данных для ускорения, организации и контроля за реверсивным инжинирингом в России. Заключение. Полученные результаты исследования могут иметь практическое применение в реализации политики импортозамещения, проводимой в Российской Федерации. Требования по ускорению реализации вышеуказанной политики обоснованы сужающимся кругом возможностей импортирования ключевых компонентов и изделий и нарастанием внешнеполитической и внешнеэкономической напряженности.
Устройство для измерения диэлектрических свойств порошковых материалов на базе полосковой линии передачи
Authors:   Южно-Уральский государственный университет, Клыгач Д.С. , Вахитов М.Г. ,   Южно-Уральский государственный университет, Фомин Д.Г. ,   Южно-Уральский государственный университет, Королев А.C. ,   Южно-Уральский государственный университет
Published: November 2022

Измерение электродинамических параметров, таких как диэлектрическая и магнитная проницаемости в широком диапазоне частот для сложных композитных материалов, остаётся актуальной задачей на сегодняшний день. Несмотря на то, что известны способы измерения в виде пластин, параллелепипедов или цилиндров, измерение свойств в широком диапазоне частот композитных материалов остаётся слабо исследованной темой. Цель исследования: обоснование возможностей использования полосково-щелевого перехода для измерения электродинамических параметров сложных композитных материалов. Материалы и методы. В статье представлены результаты исследований электродинамических параметров композитных материалов на основе измерителя в виде объёмного полосково-щелевого перехода. Данный переход позволяет выполнить измерение электродинамических параметров в диапазоне частот от 10 до 1400 МГц. Преимущество применения полосково-щелевого перехода в том, что при измерении электродинамических параметров нет необходимости придавать специальную форму (параллелепипед, цилиндр) исследуемым образцам. Это приводит к дополнительным технологическим трудностям и затратам времени на подготовку исследуемых образцов композитного материала. Исследуемые образцы композитного материала могут быть в виде сыпучей смеси. За счет этого сыпучий материал полностью займет внутреннее пространство полосково-щелевого перехода. Исследуемый композитный материал применяется при проектировании строительных материалов для обеспечения электромагнитной совместимости и представляет собой сыпучую смесь. Результаты. В статье приведены частотные зависимости коэффициентов отражения и прохождения в диапазоне частот при различных концентрациях материалов в итоговой смеси. Заключение. Описана технология получения композитных материалов с учетом концентрации компонентов в смеси. Композитные материалы представляют собой гибридный материал – сухую смесь электромагнитных (графитных) и диэлектрических частиц (перлита), а также цементно-полимерного вяжущего, предназначенную для нанесения радиопоглощающего покрытия на ограждающие конструкции. Дисперсные составы частиц перлита и графита близки и находятся в диапазоне 0,1…1 мм. Образцы смеси отличаются по составу объемным соотношением SiO2/C.
IMPLEMENTASI PENYALURAN BANTUAN SOSIAL COVID-19 DI DKI JAKARTA
Authors: Morado Roy
Published: November 2022

The Covid-19 pandemic has caused the government, both central and regional, to be overwhelmed in distributing social assistance to the community. In Jakarta, it is known that there are residents who return social assistance because they feel they are not entitled to receive such assistance. In addition, many residents who should have received assistance but did not receive assistance due to beneficiary data problems. This study aims to identify and analyze the forms of implementation of the distribution of Covid-19 Social Assistance in DKI Jakarta. This study uses a qualitative approach with a literature study method using reference books and similar previous research results in order to obtain a theoretical basis for the problem to be studied. This study focuses on analyzing the implementation of the distribution of Covid-19 Social Assistance using the Mazmanian & Sabatier theory. The results of this study indicate that the distribution of COVID-19 social assistance is quite good, but has not covered all of the beneficiaries. There are problems related to the data on beneficiaries and the poor quality of basic food materials. The supporting factor for the distribution of COVID-19 social assistance in meeting the needs of vulnerable communities is the collaboration carried out by implementing officials with various other agencies. Public support is enthusiasm from the community and commitment from implementing officials. The inhibiting factor for the implementation of the distribution of COVID-19 social assistance is the confusion of data on beneficiaries that is out of sync between the central government and the data submitted by the local RT/RW.
EFEKTIVITAS PROGRAM JOGO TONGGO DI KELURAHAN WONOTINGAL, KECAMATAN CANDISARI KOTA SEMARANG
Authors: Maesaroh Maesaroh , Widowati Nina
Published: November 2022

Jawa Tengah merupakan salah satu propinsi atau daerah yang masuk dalam zona merah karena masih mengalami peningkatan kasus/ penambahan kasus pasien yang positif. Salah satu daerah yang masuk zona merah adalah kota semarang. Rata-rata perminggu mencapai angka 500 kasus. Dengan peningkatan tersebut mengindikasikan bahwa kebijakan yang dilakukan oleh pemerintah belum maksimal, sehingga penelitian ini bertujuan untuk melihat seberapa jauh peran masyarakat dalam keterlibatannya dan program apa saja yang sudah dilakukan. Penelitian ini menggunakan metode deskriptif kualitatif dengan informan masyarakat.Hasil penelitian menunjukkan bahwa peran masyarakat dalam program jogo tonggo khususnya di kelurahan Wonotingal sudah cukup tinggi, dibuktikan dengan terbentuknya satgas di kelurahan dan sudah adanya kepedulian terhadap masyarakat yang terpapar dengan memberikan bantuan material dan melaksanakan protokal kesehatan secara maksimal, namun demikian masih ada beberapa kekurangan karena jogo tonggo sifatnya himbauan dan butuh kesadaran, sehingga ketika terjadi kasus yang terpapar banyak, ada keterbatasan dana untuk mengcover mereka yang isoman. Dari 4 bidang kegiatan, semua sudah terlaksana hanya dalam batas sederhana dan minimal.
EVALUASI PROGRAM PENGGEMUKAN SAPI DI KECAMATAN LINGE KABUPATEN ACEH TENGAH
Authors: Zunafriesma Nanda , Basri Hasan , Surya Achmad
Published: November 2022

Through the Qanun of Central Aceh Regency Number 6 of 2013, the Ketapang Nusantara Integrated City Area (KTM) was established in Linge District, Central Aceh Regency. Beef cattle fattening farm program in 2013. This study aims to evaluate the cattle fattening program in Ketapang Nusantara. This type of research is descriptive qualitative. The informants of this research include the Head of the Dians Animal Husbandry, Central Aceh Regency, Cattle Cattle Group in Linge District, Central Aceh Regency, the community and related stakeholders. The results showed that the cattle fattening program could be said to be ineffective as a whole because the fulfillment of meat needs was still in the district of Central Aceh, while the objective of the program was based on regulations, namely meeting the needs of beef in the Special Province of Aceh. Besides that, some of the obstacles faced are natural factors, not being able to provide pasture to meet the quantity of animal feed, because some areas have land contours that are dominant with rocks. Behavior factors of human resources, lack of innovation and creativity of breeders in managing their farms. As well as the Organizational Commitment Factor, the weak commitment of the Department of Agriculture in coordinating and collaborating with related parties. The recommendations formulated include the need for partnerships with academics, improved coordination with agencies related to the cattle fattening program, and there needs to be a search for more supportive livestock locations.
IMPLEMENTASI COLLABORATIVE GOVERNANCE PENGELOLAAN TAMAN WISATA ALAM (TWA) GUNUNG BATUR BUKIT PAYANG KINTAMANI BANGLI
Authors: Richo Tude , Widhiasthini Wayan
Published: November 2022

Collaborative governance merupakan kolaborasi dengan mengatur seuatu keputusan dalam proses kebijakan  yang dilakukan oleh lembaga publik dalam kebersamaan, kerja sama, berbagi tugas, dan tanggung jawab dimana pihak yang berkolaborasi memiliki tujuan yang sama, kesamaan persepsi, kemauan untuk berproses, saling memberikan manfaat, kejujuran, kasih sayang serta berbasis masyarakat. Tujuan dari penelitian ini adalah untuk mengetahui peran pemerintah dalam pengelolaan Taman Wisata Alam Gunung Batur Bukit Payang Kintamani Bangli dalam persepektif collaborative governance, untuk mengetahui inisiatif pihak swasta dalam pengelolaan Taman Wisata Alam Gunung Batur Bukit Payang Kintamani Bangli dan untuk mengetahui keikut sertaan masyarakat dalam pengelolaan Taman Wisata Alam Gunung Batur Bukit Payang Kintamani Bangli. Penelitian ini peneliti menggunakan metode deskriptif dengan pendekatan kualitatif. Penelitian ini menggunakan metode wawancara, observasi dan dokumentasi. Hasil penelitian ini menunjukan bahwa peran pemerintah dalam pengelolaan Taman Wisata Alam Gunung Batur Bukit Payang telah memberikan ruang tertentu kepada swasta dan masyarakat, Inisiatif pihak swasta dalam pengelolaan Taman Wisata Alam Gunung Batur Bukit Payang adalah menjalin kemitraan dengan pemerintah untuk meningkatkan daya tarik pengunjung ke kawasan Taman Wisata Alam Gunung Batur Bukit Payang dan keikut sertaan masyarakat dalam pengelolaan Taman Wisata Alam Gunung Batur Bukit Payang  dengan di berikannya ruan-ruang bagi masyarakat untuk membetuk kelompok masyarakat dalam pengelolaan.Kata kunci: Collaborative, Pemerintah, Swasta, Masyarakat.
RELEVANSI PERATURAN PEMBERHENTIAN ASN TERHADAP SISTEM MERIT DI INDONESIA
Authors: Setiawan Annisa Dewi Mantika , Salsabila Azarine , Jannah Lina Miftahul , Ariyanti Fitria
Published: November 2022

Manajemen aparatur sipil negara (ASN) merupakan salah satu aspek pembangunan yang difokuskan oleh pemerintah Indonesia sejak tahun 2020. Pemerintah Indonesia melakukan reformasi birokrasi yang ditandai dengan diterapkannya sistem merit dalam manajemen aparatur sipil negara di Indonesia. Akan tetapi, penerapan tersebut akan memunculkan sebuah pertanyaan baru mengenai apakah sistem pemberhentian aparatur sipil negara itu sendiri telah sesuai dengan sistem merit. Artikel ini disusun menggunakan metode desk review dan data-data sekunder yang berasal dari jurnal, publikasi pemerintah, dan sumber lain yang relevan. Di dalam artikel ini ditemukan bahwa masih terdapat beberapa peraturan pemberhentian aparatur sipil negara yang kurang memenuhi prinsip sistem merit khususnya pada prinsip objektivitas. Seharusnya peraturan pemberhentian aparatur sipil negara ditinjau kembali dengan memperhatikan setiap prinsip sistem merit. Selain itu, diperlukan juga penjelasan lebih lanjut terkait frasa-frasa yang dapat menimbulkan makna ganda. Pengawasan penegakan hukum terhadap peraturan pemberhentian aparatur sipil negara berdasarkan sistem merit juga perlu ditekankan sehingga tidak ada oknum yang memanfaatkan celah peraturan demi kepentingan mereka sendiri.
Social media, social unfreedom
Authors: Magalhães João C. , Yu Jun
Published: November 2022

This essay addresses the moral nature of corporate social media platforms through the lenses of Axel Honneth’s concept of justice, according to which relations of mutual recognition must be institutionalized into spheres of social freedom to claim a just society. This perspective allows us to observe how platforms configure a symmetrically inverted form of ethical sphere, in which users are led to formulate non-autonomous desires that can only be realized socially. We characterize this as social unfreedom. A just platform ought to be the one in which rights and self-legislation capabilities enable users to have a stake in governing how these digital spaces can be designed to foster the practical realization of users’ autonomous aims, the essay argues.
Bad things can happen: are medical students aware of patient centered care and safety?
Authors: Gillissen Adrian , Kochanek Tonja , Zupanic Michaela , Ehlers Jan
Published: November 2022

Objectives

Quality and safety in healthcare are of the utmost importance, but little is known about whether undergraduate students are aware of patient safety concepts. The objectives of our study were to assess the perception of medical students of challenges in patient safety, and collect their perceptions of error management and prevention.

Methods

This study used an exploratory mixed method strategy. The first study phase collected data from semi-structured interviews of 28 students. Based on this, an online survey was constructed and sent to about 80,000 medical students in Germany. 1053 replies were received and analyzed for responses based on gender, curriculum type (problem based [PBC] vs. science based curriculum [SBC]) and years of training.

Results

Most students understand the importance of patient safety, error avoidance, and the challenges of patient safety interventions. Four themes were identified: (a) the culture of patient safety (what is a good doctor? Doctors’ responsibility), (b) the working environment (the inevitability of mistakes, high work load, hierarchy, competition, teamwork), (c) the challenges of risk reduction (error avoidance, management, skills), and (d) materialistic issue (income vs. humanistic values). Female students were more risk aware than male students. Sixteen percent of students expect negative effects (e.g. punishment) when medical errors were disclosed in a team. Regardless, >70% regard teamwork as an effective error avoidance measure. Error disclosure willingness was high (89.7%).

Conclusions

Although not formally part of the curriculum, students had a positive perspective concerning patient safety. The opportunities and challenges for incorporating patient safety content into the training curriculum were identified and presented.
Es war einmal ein Virus?
Authors: Schneider Ingo
Published: November 2022

Seit den ersten bekannt gewordenen Fällen von SARS CoV-2 verbreitete sich das Virus wellenförmig über die ganze Welt. Mit ihm ging auch eine Flut von Erzählungen unterschiedlicher Art viral. Der Beitrag beabsichtigt nicht, einen Überblick über dieses mittlerweile schwer zu überblickende Material zu geben; er versucht stattdessen, das Potential einer sich als kritische Gesellschaftsanalyse verstehenden Erzählforschung in der Auseinandersetzung mit der Pandemie vorzuführen. Dazu werden zunächst die gesellschaftlichen Rahmenbedingungen und mit ihnen verknüpften Diskurse in den Blick genommen. Von da aus frage ich nach unterschiedlich gelagerten Erzählkomplexen, die diesen Rahmenbedingungen und Diskursen entwachsen. Drei davon werden exemplarisch näher betrachtet: Erzählungen können erstens als Ausdruck kollektiver Vorurteile oder Ventil diffuser Ängste gelesen werden; sie können zweitens symbolischer Ausdruck von Spaltungstendenzen innerhalb einer Gesellschaft sein, oder aber drittens machtvolle Instrumente von Großmachtinteressen. Alle drei Ebenen spielen letztlich ineinander bzw. treffen auf der Ebene des alltäglichen Erzählens aufeinander. Wir haben es hier mit einem komplexen, wechselseitigen Beziehungsgefüge zwischen einem Krankheitserreger, den darüber kursierenden Erzählungen und der mit beiden konfrontierten Gesellschaft zu tun.
Dimu: An Ancient Character in Modern Bantu Language Tales
Authors: Westley David
Published: November 2022

This article begins with a table which shows modern words for “ogre”, e. g., zimu in Zulu, irimu in Kikuyu and dimo in Sotho, in Bantu language tales and relates them to the Proto-Bantu term, dimu. Using insights from depth psychology, Aarne-Thompson-Uther classification and, especially, performance theory, the paper examines the character of the ogre in a number of theoretical areas. These include the relationship between tradition and creativity, the development of narrative meaning and how the ogre functions as a symbol with special reference to stories found in eastern and southern Africa.
Hydroxyapatite/TPU/PLA nanocomposites: Morphological, dynamic-mechanical, and thermal study
Authors: Faghihi-Rezaei Vahid , Khonakdar Hossein Ali , Goodarzi Vahabodin , Darbemamieh Goldis , Otadi Maryam
Published: November 2022

Nanocomposites based on thermoplastic polyurethane (TPU) and poly lactic acid (PLA) with different weight ratios of 10:90 and 30:70 were prepared by solution method. Hydroxyapatite nanoparticles (n-HA) were used to enhance the physical and mechanical properties of the alloys. To prepare the nanocomposites, the percentages of n-HA varied between 1% and 5%. Different tests were used to investigate the properties of these nanocomposites. Scanning electron microscopy (SEM) analysis, which was used to study the morphology of the blends, showed that there were rough morphologies in between materials, and the results of the mapping test showed that the dispersion of nanoparticles in the polymer matrix was almost good. TGA thermal degradation test showed that the presence of TPU to some extent can affect the thermal stability properties, and with the increase in this material, the thermal properties are strengthened. The crystalline behavior of the samples showed that the presence of TPU and n-HA nanoparticles had negative effects on the crystalline properties. The study of viscoelastic behaviors showed that the presence of TPU enhances the viscous behavior in the sample and decreases the glass transition temperature, while the presence of nanoparticles increases the elastic properties and glass transition temperature. Tensile test showed that the presence of n-HA has a greater effect on the mechanical properties. Dynamic contact angle analysis using water and dimethylformamide (DMF) solvent showed that the existing TPU and n-HA led to major changes in the interaction surface of scaffolds. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide analysis showed that increasing the amounts of TPU and HA increases cell viability. SEM cell interactions analysis showed that the surfaces of PLA90TPU10H5 and PLA70TPU30H5 samples are very good for the preparation of bone tissue scaffolds. Our findings indicated that the addition of n-HA into PLA/TPU blends could impart new features to the PLA matrix as a promising candidate for bone, cartilage, and tendon tissue engineering.
Wood quality of residual branches of Hymenaea courbaril L. from logging in the Amazon rainforest
Authors: Moreira Letícia da Silva , Lima José Tarcísio , Soares Bruno Charles Dias , Moutinho Victor Hugo Pereira
Published: November 2022

Branches remain in the forest environment as logging activity residue. Considering the large size of many Amazonian trees, their branches have considerable dimensions and can contribute to a sustainable wood alternative for various applications. Due to the formation of reaction wood in the branches, relevant macro and ultrastructural changes can occur in its characteristics in relation to the trunk wood. However, the woods of the branches are not technologically well known. Therefore, this work aimed to evaluate the wood quality of branches of Hymenaea courbaril L., comparing it with wood of trunks. The extractives and lignin contents, basic density, shrinkage, fiber biometry, microfibril angle and mechanical resistance to compression parallel to the fibers were analyzed. The branch wood had smaller fiber dimensions and a higher microfibril angle than the trunk wood. The basic density was similar between these materials. The linear and volumetric shrinkages were smaller in the branch wood than in the trunk, while the axial shrinkage was higher in the branch. The parallel compressive strength was also lower in the branch wood than in the trunk. The branch wood has properties suitable for products with higher added value such as furniture, decorative objects, floors and utensils in general.
Investigation of the interface behavior of a viscous fluid under free surface shear flow using an eccentric transparent Couette cell
Authors: Thirunavukkarasu Prashanth , Fournier Francis , Pignolet Arnaud , Castellani Romain , Cohen Céline , Peuvrel-Disdier Edith , Valette Rudy , Vergnes Bruno
Published: November 2022

In the present work, a prototype was developed to observe the flow behavior of viscous fluids under free surface shear and determine an adhesion energy in this flow geometry. The geometry consists of an eccentric Couette cell (outer cylinder radius of 89.5 mm, inner cylinder radius of 43.75 mm and minimal gap of 3 mm) that can be used in two modes, where both cylinders can respectively rotate in the same or opposite directions. Cylinders are horizontal and short relatively to their diameters (30 mm long). Transparent windows allow in-situ flow observations. The design, development, and testing of the prototype with a model viscous fluid (silicone fluid with a 2.2 104 Pa.s Newtonian viscosity) are reported in this paper. The flow behavior of small fluid volumes (fill factor smaller than 15%) was investigated under co- and counter-rotating configurations to determine steady-state flow conditions. Stationary conditions were identified in the counter-rotating mode. The velocity conditions and resulting observations are studied and analysed. However, for the used silicone fluid, the bulk dissipative energy is much larger than the work of adhesive forces in the investigated regimes. The adhesion energy contribution could not be detected for this fluid.
Understanding Startup Valuation and its Impact on Startup Ecosystem
Authors: Menon Ramesh , James Leena
Published: November 2022

Startups play a substantial role in the economic growth of a nation, by introducing new technologies, ground-breaking innovation, creating jobs, etc. A couple of decades back, it was extremely difficult to start a business, but today new businesses pop up every day, all around the world. Recognizing the importance of a startup, governments across the globe are doing their best to provide an atmosphere where startups can bloom. Despite its importance and all the support, the startup failure rate is at 90%; about 10% of startups fail in the first year and 70% fail in two to five years. The startup boom saw the emergence of alternative sources of funding like Venture Capitalist, Angel Investors, etc. These investors (Venture Capitalist, Angel Investors, etc.) played a crucial role in startup success by providing easy access to funds which is a critical and scarce resource for any founder. Traditionally business success is linked with sustainable profitability but in the startup world most used method to define success is valuation. Based on CB Insights research, as of January 2022, there are more than 900 unicorns (startup with a valuation of over $1 billion) around the world and of these unicorns less than 10% are profitable. It’s difficult to explain/comprehend how startups’ which are neither profitable nor foresee profitability in near future are valued higher than traditional business with stable profitability. Current valuation methods have impacted the startup ecosystem. Today, founders start their business with exit in mind, the focus of founders is on growth/scale rather than profitability. There is a school of thought that believes that such valuations will soon result in the bursting of the startup bubble just like the dotcom bubble seen in late 1990s. The focus of this paper is to investigate the techniques used by investors for startup valuation and how these techniques are impacting the startup ecosystem and its founders. The paper looks at all stages of the investment cycle, from seed to IPO or takeover and understands the process of valuation at each stage and how it impacts all stakeholders in the ecosystem.
Rare PHEX intron variant causes complete and severe phenotype in a family with hypophosphatemic rickets: a case report
Authors: Aiello Francesca , Pasquali Daniela , Baronio Federico , Cassio Alessandra , Rossi Cesare , Di Fraia Rosa , Carotenuto Raffaela , Digitale Lucia , Festa Adalgisa , Luongo Caterina , Maltoni Giulio , Schiano di Cola Roberta , Del Giudice Emanuele Miraglia , Grandone Anna
Published: November 2022

Objectives

Lower limb deformities in children need careful orthopedic evaluation to distinguish physiological forms from pathological ones. X-linked hypophosphatemia (XLH) is a rare hereditary condition caused by PHEX gene mutations where tibial varum can be the first sign.

Case presentation

We report a family presenting with severe tibial varum, harbouring a rare PHEX intron mutation, c.1586+6T>C. This is the first clinical description available in literature for this variant. Despite the previous prediction of a mild phenotype in functional study, our patients showed important bone deformities, rickets and impaired growth since infancy followed by severe bone pain, hearing loss and reduced life quality in adulthood. Burosumab therapy improved biochemical and radiological findings in children and ameliorated quality of life in adults.

Conclusions

This case demonstrated c.1586+6T>C causes a severe XLH phenotype, responsive to Burosumab. Familial genetic screening, enlarged to intronic region analysis, when XLH is suspected, allows precocious diagnosis to start timely the appropriate treatment.
If You Build It, They Might Not Come: The Effects of Socioeconomic Predictors on Library Activity and Funding
Authors: Carlozzi Michael
Published: November 2022

Many surveys have suggested that U.S. public library usage correlates with socioeconomic status and race; persons identifying as Non-Hispanic White, highly-educated, and affluent claim to use library services at a rate greater than those not belonging to these groups. These findings suggests that the dominant model of library service—a brick and mortar localized service point—interfaces poorly with marginalized and disenfranchised persons. This paper combines Public Library Survey and American Community Survey data for 49 U.S. states to explore the relationship between socioeconomic variables and public library usage. Using Bayesian hierarchical modeling, this paper finds corroboration for these surveys at the “community-level,” i.e., communities with higher socioeconomic status and more Non-Hispanic Whiteness are associated with greater levels of library activity. It also finds, using propensity score matching, that local funding is strongly associated with library activity, underscoring the importance of funding advocacy. The analysis suggests that U.S. library administrators who aim to reach marginalized and disenfranchised persons might want to consider service models alternate to the dominant brick and mortar model.
Inorganic nanoparticles promoted synthesis of heterocycles
Authors: Sharma Kongbrailatpam Gayatri
Published: November 2022

The application of inorganic nanoparticles as nanocatalyst for synthesizing of nitrogen containing heterocycles are reviewed. While an inclusive summary of the various catalysts utilized in the synthesis of heterocycles is demonstrated with limited focus on the preparation or characterization of the catalyst. The review is being summarized into different sections based on the size and the number of N-atoms in the cyclic compounds.
Improving the purification of aqueous solutions by controlling the production of reactive oxygen species in non-thermal plasma; a systematic review
Authors: Hossaini Hiwa , Pirsaheb Meghdad , Hossini Hooshyar , Derakhshan Ali Ashraf , Asadi Fateme
Published: November 2022

Treatment with non-thermal plasma is a reliable technology to oxidize chemical impurities that exist in polluted water, wastewater, and leachate, those degradation-resistant and cannot be removed by conventional treatment methods. In this study, the effective factors affecting in the formation ofreactive oxygen species in non-thermal plasma treatment process, as a new advanced oxidation process method explianed. In this manner, all associated manuscripts existed in the main databases including Google Scholar, Science Direct, PubMed, and Open Access Journal Directory from 1990 until 2022 were explored. The utilized keywords were involved non-thermal plasma, Cold plasma, Measurement, •OH, O3 and UV. Overall, 8,813 articles were gathered and based on the relevance titles and abstracts, 18 paper were selected for further reviewing. In several studies, plasma techniques have been used to treat water, wastewater and leachate, but few studies have evaluated the factors influencing the production of ROS species by non-thermal plasma. The non-thermal plasma destroys pollutants by reactive free radicals spices (hydroxyl, hydrogen atoms, etc.) a combination effect of strong electric fields, energetically charged particles, and ultrasound. Some factors such as water vapor, hydraulic retention time, inter-electrode spacing, discharge power density, and aeration of the effluent as well as use of catalyst have direct effect on the reactive oxygen species formation. If these factors controlled within the best ranges, it will promote the oxidizing radical production and system performance. Also, high-energy electrons and oxidizing species produced in the cold plasma system can well degrade most of pollution in water and wastewater.
On the O-mode instability generated by dual core-halo solar wind electrons
Authors: Sarfraz Muhammad , Ahmad Fahad , Iqbal Zafar , Abbas Gohar
Published: November 2022

In situ measurements reported with different spacecraft reveal the temperature anisotropy constraints of solar wind species. Micro-instabilities driven by the temperature anisotropy are investigated as key mechanism which limit an unchecked rise in the temperature anisotropy in dilute space plasmas. The present study considers the excitation of O-mode instability under the excessive electrons parallel temperature condition i.e., T
‖e
> T
⊥e
. Looking at the recent developments made by different satellite missions, a dual core-halo electron distribution is employed that represents a true picture of solar wind electrons. We employ Vlasov–Maxwell’s model equations and derive the dispersion relation of the O-wave whose analytical solution characterizes the growth rate of O-mode instability. We take different sets of temperature anisotropy and beta combinations associated with core-halo electron components that highlight the instability characteristics e.g. growth rate and the range of wave number of unstable mode. We note an increment in the growth rate with the increase of anisotropic ratios associated either with core electrons or halo electrons and or the combination thereof. In view of a global perspective of solar wind, it may be a favorable study with the contribution of non-thermal solar wind electrons.
WEAR PROPERTIES OF ALUMINUM MATRIX COMPOSITES REINFORCED BY GRAPHENE ENCAPSULATED SiC NANOPARTICLES
Authors:   School of Materials Science and Engineering, Shenyang Ligong University, Shenyang 110159, China, GUO S. , GAO J. B. ,   Centre of Excellence for Advanced Materials, Dongguan 523808, China, DU X. M. ,   School of Materials Science and Engineering, Shenyang Ligong University, Shenyang 110159, China, FANG G. S. ,   School of Materials Science and Engineering, Shenyang Ligong University, Shenyang 110159, China, QI H. T. ,   School of Materials Science and Engineering, Shenyang Ligong University, Shenyang 110159, China, LI N. ,   School of Materials Science and Engineering, Shenyang Ligong University, Shenyang 110159, China, ZHANG G. ,   School of Materials Science and Engineering, Shenyang Ligong University, Shenyang 110159, China
Published: November 2022

Graphene encapsulated SiC nanoparticles reinforced aluminum matrix composites were prepared by high energy ball-milling and hot-press sintering methods. The effect of graphene content on microstructure and wear properties of composites was investigated. The results show that the graphene sheets successfully encapsulates SiC nanoparticles to form a composite reinforcement phase under the condition of the graphene content of 1 wt.%. SiC nanoparticles encapsulated with graphene predominantly are homogeneously distributed on the grain boundaries of Al matrix. The interface between graphene and Al matrix is sharpand no Al-C compound is formed on the interface. The increase of the reinforcement phase reduces the wear performance of the composite material. The main wear mechanisms of aluminum-based composite materials are the combination of delamination wear and abrasive wear. As the graphene content increases, the wear mechanism changes from abrasive wear to delamination wear.
Effectiveness of realistic simulation for teaching pulmonary physical examination: randomized clinical trial
Authors: Carino Ana Carolina Costa , Fernandes Renata Marinho , Fernandes Maria Isabel da Conceição Dias , Tinôco Jéssica Dantas de Sá , Gomes Camila Sayonara Tavares , Almeida Anna Thays Dias , Lira Ana Luisa Brandão de Carvalho
Published: November 2022

Objective: to evaluate effectiveness of realistic clinical simulation for teaching pulmonary physical examination to undergraduate nursing students. Methods: experimental study of pre-test and post-test type applied to randomized intervention and control groups. The sample consisted of 30 students, randomly divided. The analysis was performed using descriptive and inferential statistics, through Kolmogorov-Smirnov test and t-test for independent samples, considering statistical significance p≤0.05. A satisfaction scale validated with the intervention group was applied. Results: we identified increased correct answers in post-test in the intervention group, which was submitted to realistic simulation. In this group, the mean number of errors varied from 4.87 in the pre-test to 2.13 in the post-test. In the control group, students either decreased or maintained the number of correct answers in the post-test, and mean errors increased, from 3.87 in the pre-test to 4.0 in post-test. The difference in correct answers between intervention and control groups was significant (p=0.000). Conclusion: from realistic simulation, students obtained a lower average error rate on post-test. Contributions to practice: results of this research favor the curricular insertion of simulation for teaching pulmonary physical examination in undergraduate nursing.
Factors associated with disability in patients after discharge from Intensive Care Units COVID-19
Authors: Amaral Ianka do , Marafigo Luiz Ricardo Zander , Alves Fabiana Bucholdz Teixeira , Santos Celso Bilynkievycz dos , Fadel Cristina Berger
Published: November 2022

Objective: to evaluate factors associated with disability of patients after hospital discharge in COVID-19intensive care units. Methods: cross-sectional analytical research with sociodemographic, clinical, self-perception of health and WHODAS 2.0 scale data of patients discharged from a teaching hospital. Patients admitted to an intensive care unit for COVID-19 for more than eight days, discharged from the hospital at least 365 days before data collection and older than 18 years were included. Information analysis was performed using data mining. Results: 32 individuals were eligible, 25% were disabled. These individuals presented low cognition, mobility, self-care, limitation in daily activities, justified by biological and clinical parameters. Still, 37% by obesity and polymedication, 75%, impaired concentration and 50%, neurological developments. The length of hospitalization and the therapeutic resources demanded in this period were also associated with the disability observed. Conclusion: the COVID-19 virus added to the length of hospitalization and clinical factors ware related to disability 12 months after hospital discharge with strong presence of neurological symptoms. Contributions to practice: it is expected to contribute to the understanding of the long-term impacts of COVID-19, enabling to offer better assistance and quality of life to patients affected by the disease.
Kawasaki Disease Following the 13-valent Pneumococcal Conjugate Vaccine and Rotavirus Vaccines
Authors: Kamidani Satoshi , Panagiotakopoulos Lakshmi , Licata Charles , Daley Matthew F. , Yih W. Katherine , Zerbo Ousseny , Tseng Hung Fu , DeSilva Malini B. , Nelson Jennifer C. , Groom Holly C. , Williams Joshua T.B. , Hambidge Simon J. , Donahue James G. , Belay Ermias D. , Weintraub Eric S.
Published: November 2022

BACKGROUND

Temporal associations between Kawasaki disease (KD) and childhood vaccines have been reported. Limited data on KD following 13-valent pneumococcal conjugate (PCV13) and rotavirus vaccines are available.

METHODS

We conducted a self-controlled risk interval study using Vaccine Safety Datalink electronic health record data to investigate the risk of KD following PCV13 and rotavirus vaccines in children <2 years of age who were born from 2006 to 2017. All hospitalized KD cases identified by International Classification of Diseases diagnosis codes that fell within predefined risk (days 1–28 postvaccination) and control (days 29–56 for doses 1 and 2, and days 43–70 for doses 3 and 4) intervals were confirmed by manual chart review.

RESULTS

During the study period, 655 cases of KD were identified by International Classification of Diseases codes. Of these, 97 chart-confirmed cases were within risk or control intervals. In analyses, the age-adjusted relative risk for KD following any dose of PCV13 was 0.75 (95% confidence interval, 0.47–1.21). Similarly, the age-adjusted relative risk for KD following any dose of rotavirus vaccine was 0.66 (95% CI, 0.40–1.09). Overall, there was no evidence of an elevated risk of KD following PCV13 or rotavirus vaccines by dose. In addition, no statistically significant temporal clustering of KD cases was identified during days 1 to 70 postvaccination.

CONCLUSIONS

PCV13 and rotavirus vaccination were not associated with an increased risk of KD in children <2 years of age. Our findings provide additional evidence for the overall safety of PCV13 and rotavirus vaccines.
A vigilância em saúde sob a perspectiva de seus trabalhadores
Authors: Sousa Layanne Cristini Martin , Feitosa Eva Emanuela Lopes Cavalcante , Melo Ricardo Henrique Vieira de , Bezerra Hellyda de Souza , Rodrigues Maisa Paulino
Published: November 2022

Objetivo: compreender a vigilância em saúde (VS) sob a perspectiva de seus trabalhadores.
Materiais e método: estudo qualitativo baseado no método compreensivo-interpretativo, em que foram entrevistados 28 profissionais vinculados à VS de um estado e de sua capital no Brasil. O material coletado por meio de entrevista foi analisado a partir da técnica de análise de conteúdo.
Resultados: emergiram quatro categorias temáticas com relação à VS: concepção, articulação intrínseca e extrínseca, potencialidades e desafios. Os trabalhadores apresentaram uma concepção ampliada sobre a VS, entretanto a visão tecnicista e biomédica ainda persistiu.
Conclusões: os trabalhadores relataram, como potencialidades, a satisfação e o comprometimento no exercício de suas funções e revelaram, como dificuldades, aspectos desestimulantes no cenário em curso. Nessa direção, os participantes apontaram para a alocação de mais verbas e investimentos no setor, para a valorização de suas carreiras e a necessidade de maior suporte por parte da gestão dos serviços.
Notes on the floral sexuality of some species of the tree genus Triplaris (Polygonaceae)
Authors: Koenemann Daniel
Published: November 2022

The majority of angiosperms (~94 %) are synoecious, with only a small minority separating the production of the two gamete types onto different biological individuals (dioecy). For many plant species, however, reproductive systems and habits are not well documented. This is particularly true of tropical trees, which, despite their conspicuity, are poorly understood. Plants in the genus Triplaris have been consistently described as strictly dioecious. After morphologic analysis using a dissecting microscope, here I present a number of fully-formed perfect (hermaphroditic) flowers observed on Triplaris herbaria specimens.
Educación 4.0: integración de robótica educativa y dispositivos móviles inteligentes como estrategia didáctica para la formación de ingenieros en STEM
Authors: Restrepo-Echeverri Daniel , Jiménez-Builes Jovani Alberto , Branch-Bedoya John Willian
Published: November 2022

En este artículo se presenta un modelo para la implementación de los celulares como un componente funcional de la robótica educativa. Con esto se puede lograr una masificación de las prácticas educativas de la robótica, y un planteamiento de soluciones innovadoras con el uso de componentes cotidianos. Lo anterior se constituye en un modelo de fácil adaptación para desarrollar habilidades específicas de los estudiantes en las áreas STEM con una baja inversión. Se evidenció como resultado, que la robótica facilita la posibilidad de introducir la tecnología en los procesos de enseñanza y aprendizaje por medio de estos kits que poseen sensores, mecanismos, piezas y características que pueden acoplarse e integrase con un celular para armar un robot funcional. A través de un cuestionario en línea sobre la integración de robótica educativa y celulares, se constató el interés que tienen los estudiantes de ingeniería y docentes, para que sus instituciones de educación superior incluyan la robótica en sus procesos formativos, contribuyendo de esta forma a la preparación para afrontar los retos de la línea de Educación 4.0 dentro del contexto de la Industria 4.0.
Impact of the COVID 19 pandemic on the student’s academic performance. Case at the School of Engineering - Universidad Nacional de Colombia Bogotá Campus
Authors: Monroy-Varela Sonia Esperanza , Gallego-Vega Luis Eduardo , Amórtegui-Gil Francisco Javier , Vega-Herrera Jenny Marcela , Díaz-Morales Hernando
Published: November 2022

This paper analyzes the impact of the COVID-19 pandemic on the student’s academic performance in the School of Engineering at Universidad Nacional de Colombia – Bogota Campus. The impact is assessed from a quantitative approach based on (i) student’s grades, (ii) student’s progress in their curriculum and (iii) dropped courses. In addition, results from a faculty survey (qualitative approach) are presented to expand some explanatory perspectives on the main academic changes during the pandemic. Results show a significant increase in the average numerical grade as well as in the probability of a course being dropped during the pandemic conditions. Furthermore, the student’s average curriculum progress per semester grew approximately 18%. A differentiated academic impact, depending on sex and family income was observed which may be included in future post-pandemic programs. The survey reflects a new faculty’s perspective on evaluation tools and methodologies.
Uso del software DESWIK® en un deposito polimetalico de Cu y Au
Authors: Galvis Ocampo Yuly Tatiana , Franco Sepúlveda Giovanni
Published: November 2022

Con el presente artículo se busca representar el paso a paso para la obtención de la valoración económica y el agendamiento de un proyecto minero, basado en un yacimiento polimetálico hipotético de Cu y Au, mediante la aplicación de los conceptos de ley equivalente para expresar la presencia de los diferentes metales en términos de un solo mineral, la ley de corte crítica y marginal para definir los límites económicamente viables de minado y la implementación del paquete de software DESWIK
Theoretical analysis of waste cooking oil rejuvenator in reclaimed asphalt for sustainable hot asphalt mix preparation at the Área Metropolitana de Bucaramanga
Authors: Peñaloza Danna , Vásquez Danna , Valdivieso Valentina , Jaramillo Yeison , Plata Vladimir , Moreno Paalo
Published: November 2022

Reusing reclaimed asphalt pavements (RAPs) provides economic, social, and environmental benefits. To improve the performance of these materials, rejuvenating agents such as waste cooking oil (WCO) have been implemented. The annual amounts of RAP and WCO available in the Área Metropolitana de Bucaramanga (AMB) were calculated to be 32 thousand and 22 thousand tons per year, respectively. Subsequently, international standards were reviewed and compared with Colombian regulations to establish a methodology to determine the appropriate percentage of WCO to add to RAP for hot asphalt mix preparation. The authors suggest investigating WCO levels from 3% to 6% and selecting the percentage that reestablishes the penetration grade (INV-E-706-13), softening point (INV-E-712-13), and viscosity (INV-E-717 -13) of asphalt binder. For hot asphalt mix preparation, the authors propose using the Marshall method and determining the appropriate percentage of asphalt according to stability and flow tests (INV-E-748-13), percent air voids (INV-E-736-13), and bulk density (INV-E-733-13).3).
Effect of heat treatment on vitamin content during the manufacture of food products at industrial scale
Authors: Herrera-Ardila Yenny Mayerly , Orrego David , Bejarano-López Andrés Felipe , Klotz-Ceberio Bernadette
Published: November 2022

The molecular structure of vitamins makes them easily degradable under various conditions such as temperature, pressure, and pH. It is necessary to understand and determine the stability of vitamins during the processing of food products to ensure their presence at the time of consumption. In this study, the degradation of vitamins added was assessed before and after heat treatments during the manufacturing of food products. Vitamins of interest were quantified by HPLC. The results obtained allowed to establish that prolonged heating of the product caused water-soluble vitamins degradation. The greatest degradation was observed for vitamin B12, decreasing by 94% in a baby porridge product after pasteurizing at 85 °C for 15 s. In contrast, vitamin B1 showed the lowest reduction in a chocolate milk, decreasing by 4% after ultra-high-temperature (UHT) treatment at 139 °C for 5s.
Entre sentimientos e intereses
Authors: Calvo Cardín Manuel
Published: November 2022

La declaración-retractación ordenada por ley en 1940 tuvo características, implicaciones y usos que le confieren identidad propia en el marco de la abolición de la orden masónica en España. Este trabajo se ocupa de casos concretos, en busca de las motivaciones que llevaron a declarar y las consecuencias de su actuación.