bluuebunny/crossref_metadata_2025 huggingface dataset:
KONVERGENSI HUKUM PERSAINGAN USAHA TERHADAP KOMUNIKASI BISNIS DI SEKTOR EKONOMI DIGITAL
Authors: Karsa Topan Indra , Suhaimi Suhaimi , Rohani Rohani
Published: March 2023

Persaingan usaha dalam era ekonomi digital seperti saat ini, telah menuntut para pelaku bisnis untuk melakukan kegiatan usahanya secara daring. Dalam hal ini komunikasi bisnis diperlukan  dalam suatu persaingan usaha yang sehat dan hukum persaingan usaha menjadi salah satu yang memungkina Akibat dari itu, para pembeli juga akan melakukan pembelian secara daring. Hal ini, implikasinya akan berdampak pada persaingan usaha. Undang-Undang Nomor 5 Tahun 1999 tentang Larangan Praktik Monopoli dan Persaingan usaha Tidak Sehat dalam hal ini belum mengakomodasi terkait dampak komunikasi bisnis dalam persaingan usaha  ekonomi digital  Maka dengan itu. Tujuan penelitian ini adalah untuk mengetahui hukum persaingan usaha terhadap komunikasi bisnis di sektor ekonomi digital. Penelitian ini mengunakan yuridis normatif. Maka dapat disimpulkan bahwa dalam dunia bisnis dan usaha, dibutuhkan yang namanya aspek penunjang komunikasi yang baik dan belum adanya regulasi yang mengatur tentang pasar digital sangat disayangkan mengingat hal ini sangat urgent untuk diperhatikan oleh pemerintah sebab struktur pasar ini sangat berbeda dalam segala aspeknya dengan pasar konvensional yang telah dikenal, dan sangat berpotensi untuk dikembangkan karena hukum persaingan usaha dalam komunikasi bisnis  merupakan cara dimana bagaimana menyampaikan pesan dari komunikator ke komunikan dengan melihat keadaan situasional usaha yang semakin berkompetisi satu dan lainnya melalui upaya yang strategis.
EKSISTENSI HUKUM WARIS ADAT PADA SISTEM KEKERABATAN PATRILINEAL DI KABUPATEN SIKKA PROVINSI NUSA TENGGARA TIMUR
Authors: Dua Osa Agustina , Nuwa Gisela , Muis Kasim Abdulah
Published: March 2023

Penelitian ini bertujuan untuk mengetahui dan menjelaskan Bagaimanakah implementasi hukum waris adat serta proses penyelesaian sengketa waris berdasarkan hukum waris adat yang berlaku di Kabupaten Sikka. Penelitian ini menggunakan metode pendekatan kualitatif dengan alat ukur pengambilan data menggunakan wawancara terstuktur, semi terstruktur, dan observasi. Teknik sampling yang digunakan dalam penelitian ini adalah snowball sampling. Sumber data yang digunakan adalah data primer hasil wawancara dengan 10 informan yang merupakan para tetua dan pengurus lembaga adat desa dibeberapa desa yang berada di kabupaten Sikka.Adapun hasil penelitian ini bahwa gambaran atau situasi kondisi mengenai implementasi hukum waris adat pada sistem kekerabatan patrilineal di Kabupaten Sikka dalam pembagian warisan tanah diberikan kuasa penuh kepada anak laki-laki sehingga besaran pembagiannya berbeda dengan anak perampuan sedangkan proses penyelesaian sengketa berdasarkan negosiasi setelah tidak ada penyelesaian maka dengan cara musyawarah untuk mendamaikan pihak berselisih oleh pihak Lembaga Adat Desa dan Pemerintah Desa.

Kata Kunci: Hukum Waris Adat, Sistem Kekerabatan Patrilineal.
A Systematic Review of the Healthcare Access and Utilization Barriers Faced by Refugees in Uganda
Authors: Bacigale Rodrigue Muderhwa , Murhula Alex Nyakabasa , Kayembe Pascal , Mbiso Joyeux Mugisho , Mutabesha Marie Zawadi
Published: March 2023

The increasing number of refugees in Uganda is putting a significant strain on the country’s already limited resources, particularly those for healthcare. The government has implemented policies in response to the crisis. However, numerous obstacles have hampered these efforts. The aim of this article is to review previously published research by synthesising global evidence on factors that impede refugees’ access to healthcare services across the country. Articles published between 2016 and 2022 were searched in the Google Scholar and PubMed central databases. Google Scholar yielded 21,300, PubMed Central 637, and 5 articles from cross-references, however. The PRISMA framework was used to structure the selection, and 21 studies from different fields and settings met the inclusion criteria. The most frequently cited factors that impede access to and utilisation of needed healthcare services were sociocultural considerations such as stigma and discrimination, health system anomalies that led to mistrust of healthcare services and workers by refugee populations, and financial difficulties. In order to overcome these obstacles, the government and humanitarian organisations ought to carry out a comprehensive screening with leaders of refugee communities and local refugee organisations in order to comprehend the conditions of refugees. They ought to pay particular attention to the differences between the various cultures and settings, as well as the flow of the healthcare system, in order to sensitise people and raise awareness about the healthcare system. To make it easier for refugees to access and use the necessary healthcare services, specific health policies should be implemented. When looking for healthcare, equal rights and freedom of movement should be top priorities
THE DEVELOPMENT OF DIGITAL TEACHING MATERIALS WITH PROBLEM-BASED LEARNING ON THE AMPHIBIA SUBJECT TO IMPROVE STUDENTS COMMUNICATION SKILLS
Authors: Saritha Kittie Uda  , Septika Yantie  , Shanty Savitri
Published: March 2023

The restrictions on social contact due to the Covid-19 pandemic also impacted the education sector causing many learning activities being carried out online. This research aims to 1) produce designs, 2) determine the feasibility level, and 3) determine the results of the development of problem-based learning digital teaching materials using Amphibia class subject materials in order to improve students’ communication skills. This research is development research using the ADDIE model with data collection techniques through interviews, validation, response questionnaires, observation of communication skills, and tests. Validation result data and response questionnaires were analyzed with the formula of eligibility criteria, respondent criteria and the N-Gain test. The analyses of the results show that the digital teaching materials produced are in the "Very Eligible" category for use, with a feasibility value of 86% according to the material and learning experts; 89% eligibility value according to media experts; its feasibility score was 76% according to linguists, and the average student response was 86%. The average value of the result of the N-Gain test on improving communication skills is 0.63 by means of the "Moderate" category. The 3 out of 5 indicators of written communication skills are in the” Very Good” category, while the 3 indicators of oral communication skills are in the “Very Good” category. The results of student responses with an average score of 85 are in the "Very Good" category, which means that the teaching materials developed have good quality and are suitably used for teaching materials to improve students' communication skills.
Improved Harmony Search Algorithm for Speed Control of DC Series Motor PV System
Authors: Ali E. S.
Published: March 2023

This article introduces the speed control of the DC motor solar system. The developed design matter of the speed controller is established as an optimization problem. Improved Harmony Search Algorithm (IHSA) is employed to seek for optimum Proportional Integral (PI) parameters of speed controller by diminishing the time domain cost function. The performance of the suggested IHSA based speed control of DC motor has been contrasted with Particle Swarm Optimization (PSO) and the traditional PI controller found by Ziegler Nichols (ZN) under diverse operating cases and disturbances. The results of the suggested IHSA are confirmed via time domain analysis, and diverse performance indices. Simulation results have proven the influence of the developed approach in adjusting the speed of the DC motor over PSO and traditional algorithms.
Tendencias actuales en investigación sobre innovación en ciencias sociales: un estudio bibliométrico
Authors: Alemán Ramos Pedro Francisco , Morales Almeida Paula
Published: March 2023

Innovation has always been felt as a concern for all societies, which is why it has been and is an integral part of humanity. This study focuses on describing the con-temporary scientific production on innovation in the social sciences and analyzing the lines of research in this field. For this, bibliometry was used as a quantitative method. Scientific production shows a growing trend, as of 2016, with an annual growth rate in the period 2010-2021 of 11.5%. Four topics of interest were iden-tified: innovation and technology; tourism; ethics and governance and social and communication.
Modelo de prospectiva energética para el pronóstico de escenarios futuros en Colombia
Authors: Hernández Bueno Nelson Javier
Published: March 2023

This investigation presents the development of a prospective model for the forecast of energy consumption scenarios of the consumption sectors in Colombia, based on the economic factor of the country.The study implements a multiple regression analysis, together with multi-criteria decision making to establish an integrated methodology and forecast the behavior of future scenarios of energy demand by the final consumption sectors. The transport, commercial, industrial, residential, agriculture, mining and construction sectors were taken as a study.
THE ESSENCE OF B2B-SALES IN IT
Authors: Бабич Даниил Дмитриевич , Иванова Виталина Викторовна , Сайбонова Любовь Николаевна
Published: March 2023

Цель данной статьи состоит в исследовании текущего состояния такого явления как B2B-продажи на рынке IT-технологий. В данной статье проведён анализ данной модели продаж, выделены личные качества и основные навыки sales-менеджеров, описана специфика продаж в сфере IT, выявлены её как положительные, так и отрицательные стороны и подведены итоги по общему влиянию B2B-продаж на рынок IT.

The purpose of this article is to study the current state of such a phenomenon as B2B-sales in the IT market. This article analyzes this sales model, highlights the soft-skills and hard-skills of sales-managers, describes the specifics of sales in the IT field, identifies it’s both positive and negative sides and summarizes the overall impact of B2B-sales on the IT market.
COMMERCIAL SECRET: LEGAL ISSUES OF CONFIDENTIAL INFORMATION REGIME
Authors: Коробкова Оксана Константиновна , Маинков Никита Васильевич
Published: March 2023

В статье рассматриваются коммерческая тайна предприятия как предмет нарушения статей трудового, административного и уголовного кодексов. В процессе исследования раскрыто понятие коммерческой тайны, предложены мероприятия по её защите.

The article considers the commercial secret of an enterprise as a subject of violation of articles of the labor, administrative and criminal codes. In the course of the research, the concept of a trade secret is revealed, measures for its protection are proposed.
STUDY OF THE PRODUCTS OF ELECTROCHEMICAL TRANSFORMATIONS OF THE LIB ELECTROLYTE OF THE SYSTEM LITHIUM COBALTATE - GRAPHITE IN THE PROCESSES OF CHARGE AND DISCHARGE
Authors: Корбова Екатерина Вадимовна , Липкин Михаил Семенович , Чеснокова Елена Юрьевна , Мокриевич Игорь Антонович
Published: March 2023

Рассматривается исходный неводный электролит TSE 2016 на основе карбонатов и его влияние на электродную систему с катодным кобальтатным покрытием. После эксперимента в электролитебыло определено наличие новых углеродных сигналов m/z =154 1,4-димеркаптобутан-2,3-диол и полимерного соединения m/z =206 Диэтил 2,5-диоксагександиоат. Продуктами анодного окисления электролита при заряде кобальтата лития являются 1,4-димеркаптобутан-2,3-диол и (Е)-бут-2-ен-1,4-дитиол которые идентифицируются в виде пиков на цва зависимости на платиновом электроде. Выяснено, что получаемые продукты способны к пассивации платинового электрода, а также приведены заряд- разрядные процессы на графитовом электроде, которые не приводят к появлению новых продуктов восстановления.

The initial carbonate-based non-aqueous electrolyte TSE 2016 and its effect on the electrode system with a cathode cobalt coating are considered. After the experiment, the presence of new carbon signals m/z =154 1,4-dimercaptobutane-2,3-diol and the polymer compound m/z =206 Diethyl 2,5-dioxahexanedioate was determined in the electrolyte. The products of anodic oxidation of the electrolyte during the charging of lithium cobaltate are 1,4-dimercaptobutane-2,3-diol and (E)-but-2-en-1,4-dithiol, which are identified as peaks in the color dependence on a platinum electrode. It was found that the resulting products are capable of passivation of the platinum electrode, and charge-discharge processes on the graphite electrode are also presented, which do not lead to the appearance of new reduction products.
IMPROVING THE MANAGEMENT OF EXECUTIVE DOCUMENTATION AT CONSTRUCTION SITES
Authors: Быкова Лилия Михайловна , Ашихмин Олег Викторович
Published: March 2023

Строительная отрасль двигается в сторону автоматизации многих процессов, в том числе и ведения исполнительной документации в электроном виде. Использование современных программных комплексов позволяет вывести алгоритм ведения исполнительной документации на новый уровень. В статье отражены проблемы, возникающие при традиционном способе ведения исполнительной документации. Проведен сравнительный анализ характеристик различных программ российских разработчиков. Своевременное и правильное оформление технических документов, фиксирующих процесс, способствует повышению качества работ. Автоматизация исполнительной документации помогает снизить затраты на трудовые ресурсы, оптимизировать рабочий процесс специалиста.

The construction industry is moving towards automation of many processes, including the maintenance of executive documentation in electronic form. The use of modern software systems allows you to bring the algorithm for maintaining executive documentation to a new level. The article reflects the problems that arise with the traditional method of maintaining executive documentation. A comparative analysis of the characteristics of various programs of Russian developers is carried out. Timely and correct execution of technical documents fixing the process contributes to improving the quality of work. Automation of executive documentation helps to reduce labor costs, optimize the workflow of a specialist.
CREATING AN IMAGE OF A TV PRESENTER AS ONE OF THE ELEMENTS OF MANIPULATIVE TECHNOLOGIES
Authors: Назметдинова Ирина Сайрановна , Яшникова Анастасия Васильевна
Published: March 2023

В статье рассмотрены специфические направления, блоки и виды характеристик имиджа медиаличности, обозначены социальные роли, модели реализации и выражения интересов, этапы формирования имиджа. Всё это в совокупности, может быть расценено как средство манипулятивного воздействия, следовательно, призвано оказывать влияние на аудиторию, формулировать истинное или ложное суждение, формировать образы и влиять на мнения, поведение и жизнь людей. Данные материалы могут использоваться в образовательной деятельности при подготовке обучающихся направления «Журналистика».

The article considers specific directions, blocks and types of characteristics of the image of media personality, designations of social roles, models of realization and expression of interests, stages of image formation. All this together can be regarded as a means of manipulative influence, therefore, it is intended to influence the audience, formulate true or false judgments, form images and influence people's opinions, behavior and lives. These materials can be used in educational activities in the preparation of students of the direction «Journalism».
Sargassum en las dietas de gallinas Rhode Island mejora la calidad del huevo y funcionalidad por enriquecimiento con iodo
Authors: García Jacome Ximena Naomí , González-Ramírez Pedro , Piñón-Gimate Alejandra , Casas Valdéz Margarita
Published: March 2023

Sargassum es un alga muy abundante y de fácil acceso en las zonas costeras, cuya composición química permite su uso como suplemento en dietas para gallinas de postura. México es el cuarto productor y el principal consumidor a nivel mundial de huevo y el huevo es de los alimentos más nutritivos debido alto contenido de proteínas y a sus propiedades multifuncionales. El objetivo fue evaluar si la incorporación de harina de Sargassum en la dieta de gallinas de postura Rhode Island mejora la calidad nutricional del huevo e incrementa el contenido de iodo. El estudio se realizó con 135 gallinas Rhode Island, distribuidas en 3 tratamientos: 0%, 3% y 6% de Sargassum. Diariamente se registró el consumo de alimento y producción de huevo, al finalizar el experimento se evaluó el peso, altura de albúmina, color de la yema, grosor del cascarón y se cuantificó el contenido de colesterol, triglicéridos y iodo.  El color de la yema se incrementó conforme aumentó la concentración de Sargassum en la dieta, obteniéndose en el abanico de Roche un valor de 8.9 para el 6%, asimismo, se incrementó el peso del huevo. La concentración de colesterol en el huevo de las gallinas alimentadas con 6 % de Sargassum fue menor (226 mg/100 g) que en el resto de los tratamientos. No se encontró diferencia significativa en el sabor del huevo de las gallinas alimentadas con pienso enriquecido con Sargassum. Por lo que incorporar harina de Sargassum al 6% al pienso de las gallinas ponedoras es adecuado para incrementar el peso del huevo y el contenido de iodo, reducir la concentración de colesterol y favorecer la coloración de la yema, sin afectar negativamente las variables productivas, calidad física y sabor del huevo, por lo que se considera que el Sargazo tiene potencial para la industria avícola.
Mindfulness in Teenagers with Mental Retardation
Authors: Кисова В.В. , Юренкова М.В.
Published: March 2023

В статье представлен анализ проблемы личностного становления подростков с задержкой психического развития в контексте особенностей использования психологических защит. Рассмотрены исследования специфики развития у них самооценки, рефлексии, самоотношения, личностной саморегуляции, а также психологических защит. Описана программа диагностического исследования, направленная на изучение компонентов самосознания (самоотношение, самопознание, саморегуляция поведения) и стратегий психологических защит у подростков с задержкой психического развития. Дан подробный сравнительный анализ особенностей развития самоотношения, самопознания и саморегуляции поведения у подростков с задержкой психического развития и нормальным психическим развитием. Выявлены сходные и различные аспекты развития указанных личностных феноменов при нормальном и задержанном развитии. Определены типологические характеристики самосознания у подростков в аспекте онто- и дизонтогенеза. Описаны результаты изучения стратегий психологических защит у подростков с задержкой психического развития и нормальным психическим развитием, определены общие и различные тенденции развития психологических защит у этих подростков в зависимости от особенностей развития самосознания.

The article analyzes issues related to the development of mindfulness in teenagers with mental retardation. The article focuses on the development of such mechanisms as self-esteem, reflection, self-attitude, self-regulation and defence mechanisms The article describes diagnostic research aimed at the investigation of mindfulness (self-attitude, self awareness, self-regulation) and defence mechanisms in teenagers with mental retardation. The article provides a comparative analysis of how mindfulness (self-attitude, self awareness, self-regulation) develops in teenagers with and without mental retardation. The article singles out similarities and differences associated with the development of mindfulness in teenagers with and without mental retardation. The article describes the results of an investigation aimed at investigating mindfulness in teenagers with and without mental retardation. It singles out general and specific tendencies associated with the development of mindfulness and defence mechanisms in teenagers with and without mental retardation.
Ciudadanías del saber constructo dinámico emergente complejo Acercamiento del concepto ciudadanía desde la antigüedad hasta nuestros diasitulo del capitulo
Authors: Carvajal Arias Andres
Published: March 2023

El concepto ciudadanías se ha configurado como una categoría de reconocimiento que aborda un universo conceptual el cual a través de los tiempos ha comportado distintas modificaciones de nivel contextual a pesar de estos cambios su raíz se encuentra predeterminada bajo una connotación de orden determinista suscrita en un paradigma de orden occidental que imposibilita una acertada ramificación de reconocimiento y de articulación sobre otras posibles génesis de transfiguración sobre esta categoría nominal.

En orden de dar no solo una revisión conceptual sobre esta categoría sino de tejer nuevas posibilidades de comprensión y actuación reticular sobre esta categoría (ciudadanías planetarias) en apoyo de las (reformas del pensamiento) desarrollo macro-conceptual de Edgar Morín y el estudio de las nuevas ciencias (ciencias de la vida) se realiza esta investigación  con el fin de potenciar nuevos universos conceptuales suscritos a sociedades complejas que no sinteticen sino amplíen nuevas configuraciones sistémicas de multiplicidad en donde el reconocimiento se da de orden modular.

En consonancia con el pensamiento de la complejidad y la constitución de nuevas epistemes de orden científico social (epistemologías de la complejidad y epistemologías del sur) en donde se traslucida nuevos horizontes de comprensión con el objetivo de abordar y aplicar la lógica del tercero incluido sobre los fenómenos de estudio surge esta investigación.

Investigación que busca no dar respuestas de certitud sino constituir nuevos espacios de narrativa en donde el saber y el conocimiento científico interactúan de orden inter-retro-activo.
Effects of Fin Height, Fin Thickness and Reynolds Number on Heat Transfer Enhancement of Flat-Plate Thermal Collector: A Numerical Analysis
Authors: Amrizal Nalis  , Angga Darma Prabowo  , Amrul  , Hadi Prayitno
Published: March 2023

A flat-plate thermal collector combined with a PV panel also called a PV/T collector is a device that converts solar irradiation into thermal energy and electrical energy simultaneously. The unused thermal energy of the PV/T collector is absorbed by the flat-plate thermal collector. This may then contribute directly to an enhancement of the electrical efficiency of the PV/T collector. In the present study, the effect of geometry and Reynolds Number on the thermal performance of flat-plate thermal collectors is numerically investigated. Thereafter, CFD simulation is then implemented to characterize the thermal performance in terms of absorber temperature and convection heat transfer coefficient. To disturb the fluid flow pattern in this work the 45o inclined fins are attached underneath the surface of the collector model and they act as an absorber. Monthly average weather data of inlet fluid temperature and ambient temperature as well as solar irradiation level implemented in this study were obtained from the Meteorological, Climatological and Geophysical Agency of Bandarlampung regency. Several different cases have been considered by varying the fin height from 20 to 80 mm, fin thickness from 1 to 4 mm, and Reynolds number from 1500 to 6000. The results show that increasing the fin geometry (the fin thickness and fin height) and Reynolds Number reduce the flat-plate surface temperature due to the more conductive and convective heat transfer process. However, in terms of the convective heat transfer coefficient parameter, the Reynolds Number implemented has a dominant effect compared to the fin geometry. Moreover, by increasing Reynolds Number by four times, there is a decrease in the mean surface temperature by 26% and an increase in the mean convective heat transfer coefficient of 146% compared to the initial conditions
The Celestial Reference Frame at K Band: Imaging. I. The First 28 Epochs
Authors: de Witt Aletha , Jacobs Christopher S. , Gordon David ,   K-band Celestial Reference Frame Collaboration, Bietenholz Michael , Nickola Marisa , Bertarini Alessandra
Published: March 2023

We present K-band (24 GHz) images of 731 compact extragalactic radio sources with submilliarcsecond resolution, based on radio interferometric observations made with the Very Long Baseline Array of 10 telescopes during 29 day long sessions spanning from 2015 to 2018 and recorded at 2048 Mbps. Many of these sources are imaged with submilliarcsecond resolution for the first time at frequencies above X band (8 GHz). From each of the K-band images, we derive the following source properties: peak brightness, core and total flux density, the ratio of peak and core to total flux (compactness measure), radial source extent, structure index, source size, and jet direction. The vast majority of sources are imaged at multiple epochs, providing insights into their temporal behavior. The use of K band was motivated by the fact that the sources are generally intrinsically more compact at higher frequencies, as well as by the factor of 3 improvement in interferometer resolution relative to the historically standard S/X band (2.3/8.4 GHz) used for a large amount of reference frame and calibrator work. Lastly, as most of the sources imaged here are in the K-band component of the third International Celestial Reference Frame, these images serve to characterize the objects used in that International Astronomical Union standard.
Detecting Long-period Variability in the SDSS Stripe 82 Standards Catalog
Authors: Fatović Marta , Palaversa Lovro , Tisanić Krešimir , Thanjavur Karun , Ivezić Željko , Kovačević Andjelka B. , Ilić Dragana , Č. Popović Luka
Published: March 2023

We report the results of a search for long-period (100 < P < 600 days) periodic variability in the SDSS Stripe 82 standards catalog. The SDSS coverage of Stripe 82 enables such a search because there are on average 20 observations per band in ugriz bands for about one million sources, collected over about 6 yr, with a faint limit of r ∼ 22 mag and precisely calibrated 1%–2% photometry. We calculated the periods of variable source candidates in this sample using the Lomb–Scargle periodogram and considered the three highest periodogram peaks in each of the gri filters as relevant. Only those sources with gri periods consistent within 0.1% were later studied. We use the Kuiper statistic to ensure uniform distribution of data points in phased light curves. We present five sources with the spectra consistent with quasar spectra and plausible periodic variability. This SDSS-based search bodes well for future sensitive large-area surveys, such as the Rubin Observatory Legacy Survey of Space and Time, which, due to its larger sky coverage (about a factor of 60) and improved sensitivity (∼2 mag), will be more powerful for finding such sources.
Radius-dependent Spin Transition of Dark Matter Halos
Authors: Moon Jun-Sung , Lee Jounghun
Published: March 2023

A numerical detection of the radius-dependent spin transition of dark matter halos is reported. Analyzing the data from the IllustrisTNG simulations, we measure the halo spin vectors at several inner radii within the virial boundaries and investigate their orientations in the principal frames of the tidal and velocity shear fields, called the Tweb and Vweb, respectively. The halo spin vectors in the high-mass section exhibit a transition from the Tweb intermediate to major principal axes as they are measured at more inner radii, which holds for both the dark matter and baryonic components. The radius threshold at which the transition occurs depends on the smoothing scale, R

f
, becoming larger as R

f
decreases. For the case of the Vweb, the occurrence of the radius-dependent spin transition is witnessed only when R

f
≥ 1 h
−1 Mpc. Repeating the same analysis but with the vorticity vectors, we reveal a critical difference from the spins. The vorticity vectors are always perpendicular to the Tweb (Vweb) major principal axes, regardless of R

f
, which indicates that the halo inner spins are not strongly affected by the generation of vorticity. It is also shown that the halo spins, as well as the Tweb (Vweb) principal axes, have more directional coherence over a wide range of radial distances in the regions where the vorticity vectors have higher magnitudes. The physical interpretations and implications of our results are discussed.
Target Selection and Validation of DESI Quasars
Authors: Chaussidon Edmond , Yèche Christophe , Palanque-Delabrouille Nathalie , Alexander David M. , Yang Jinyi , Ahlen Steven , Bailey Stephen , Brooks David , Cai Zheng , Chabanier Solène , Davis Tamara M. , Dawson Kyle , de laMacorra Axel , Dey Arjun , Dey Biprateep , Eftekharzadeh Sarah , Eisenstein Daniel J. , Fanning Kevin , Font-Ribera Andreu , Gaztañaga Enrique , A Gontcho Satya Gontcho , Gonzalez-Morales Alma X. , Guy Julien , Herrera-Alcantar Hiram K. , Honscheid Klaus , Ishak Mustapha , Jiang Linhua , Juneau Stephanie , Kehoe Robert , Kisner Theodore , Kovács Andras , Kremin Anthony , Lan Ting-Wen , Landriau Martin , Le Guillou Laurent , Levi Michael E. , Magneville Christophe , Martini Paul , Meisner Aaron M. , Moustakas John , Muñoz-Gutiérrez Andrea , Myers Adam D. , Newman Jeffrey A. , Nie Jundan , Percival Will J. , Poppett Claire , Prada Francisco , Raichoor Anand , Ravoux Corentin , Ross Ashley J. , Schlafly Edward , Schlegel David , Tan Ting , Tarlé Gregory , Zhou Rongpu , Zhou Zhimin , Zou Hu
Published: March 2023

The Dark Energy Spectroscopic Instrument (DESI) survey will measure large-scale structures using quasars as direct tracers of dark matter in the redshift range 0.9 < z < 2.1 and using Lyα forests in quasar spectra at z > 2.1. We present several methods to select candidate quasars for DESI, using input photometric imaging in three optical bands (g, r, z) from the DESI Legacy Imaging Surveys and two infrared bands (W1, W2) from the Wide-field Infrared Survey Explorer. These methods were extensively tested during the Survey Validation of DESI. In this paper, we report on the results obtained with the different methods and present the selection we optimized for the DESI main survey. The final quasar target selection is based on a random forest algorithm and selects quasars in the magnitude range of 16.5 < r < 23. Visual selection of ultra-deep observations indicates that the main selection consists of 71% quasars, 16% galaxies, 6% stars, and 7% inconclusive spectra. Using the spectra based on this selection, we build an automated quasar catalog that achieves a fraction of true QSOs higher than 99% for a nominal effective exposure time of ∼1000 s. With a 310 deg−2 target density, the main selection allows DESI to select more than 200 deg−2 quasars (including 60 deg−2 quasars with z > 2.1), exceeding the project requirements by 20%. The redshift distribution of the selected quasars is in excellent agreement with quasar luminosity function predictions.
Observation of Turbulent Magnetohydrodynamic Cascade in the Jovian Magnetosheath
Authors: Andrés N. , Bandyopadhyay R. , McComas D. J. , Szalay J. R. , Allegrini F. , Ebert R. W. , Gershman D. J. , Connerney J. E. P. , Bolton S. J.
Published: March 2023

We present the first estimation of the energy cascade rate in Jupiter’s magnetosheath (MS). We use in situ observations from the Jovian Auroral Distributions Experiment and the magnetometer investigation instruments on board the Juno spacecraft, in concert with two recent compressible models, to investigate the cascade rate in the magnetohydrodynamic (MHD) scales. While a high level of compressible density fluctuations is observed in the Jovian MS, a constant energy flux exists in the MHD inertial range. The compressible isothermal and polytropic energy cascade rates increase in the MHD range when density fluctuations are present. We find that the energy cascade rate in Jupiter’s magnetosheath is at least 2 orders of magnitude (100 times) smaller than the corresponding typical value in the Earth’s magnetosheath.
Fermi-LAT Gamma-Ray Emission Discovered from the Composite Supernova Remnant B0453-685 in the Large Magellanic Cloud
Authors: Eagle Jordan , Castro Daniel , Mahhov Peter , Gelfand Joseph , Kerr Matthew , Slane Patrick , Ballet Jean , Acero Fabio , Straal Samayra , Ajello Marco
Published: March 2023

We report the second extragalactic pulsar wind nebula (PWN) to be detected in the megaelectronvolt–gigaelectronvolt band by the Fermi-LAT, located within the Large Magellanic Cloud. The only other known PWN to emit in the Fermi band outside of the Milky Way is N157B, which lies to the west of the newly detected gamma-ray emission at an angular distance of 4°. Faint, pointlike gamma-ray emission is discovered at the location of the composite supernova remnant (SNR) B0453-685 with a ∼4σ significance with energies ranging from 300 MeV–2 TeV. We present the Fermi-LAT data analysis of the new gamma-ray source, coupled with a detailed multiwavelength investigation to understand the nature of the observed emission. Combining the observed characteristics of the SNR and the physical implications from broadband modeling, we argue it is unlikely that the SNR is responsible for the gamma-ray emission. While the gamma-ray emission is too faint for a pulsation search, we try to distinguish between any pulsar and PWN component of SNR B0453-685 that could be responsible for the observed gamma-ray emission using semi-analytic models. We determine the most likely scenario is that the old PWN (τ ∼ 14,000 yr) within B0453-685 has been impacted by the return of the SNR reverse shock with a possible substantial pulsar component below 5 GeV.
The Nature of Blue Stars with Mid-infrared Excesses in the Large Magellanic Cloud
Authors: Ishioka Ryoko , Chu You-Hua , Edmister Austin , Gruendl Robert A. , Zhang Lizhong , Zhu Ju
Published: March 2023

We present low-resolution optical spectra and classifications of 92 blue objects with mid-infrared excesses in the Large Magellanic Cloud. The majority of these objects were selected with the criteria of U − B < 0 and V < 17 from the potential young stellar object (YSO) candidates in Gruendl & Chu (GC09), which were identified based on Spitzer Infrared Array Camera and Multiband Imaging Photometer for Spitzer observations in conjunction with optical photometry from the Magellanic Clouds Photometric Survey. Many of the sample objects have ambiguous classifications. We examined the properties of these 92 objects using low-resolution optical spectra obtained with the SOAR 4.1 m Telescope at Cerro Pachon and the Blanco 4 m Telescope at Cerro Tololo Inter-American Observatory, supplemented by available photometric and imaging observations. We estimated the spectral types, temperatures, and luminosities of these objects from the optical to near-IR spectral energy distributions based on the photometric data, and further examined stellar absorption line features in the optical spectra to verify the spectral types. The interstellar/circumstellar environments, assessed from nebular line imaging observations and nebular lines detected in the stellar spectra, further helped constrain the nature of stars. Among these 92 objects, we confirm 42 stars as YSOs, and the remaining 50 objects as protoplanetary nebulae, post-AGB/RGB stars, blue evolved massive stars, stars with dust in vicinity, or uncertain classifications. Our results show that the photometric criteria in GC09 are generally effective in the initial selection of YSO candidates, and the low-resolution spectroscopy combined with environment assessment can be useful to better constrain the classifications and ameliorate most ambiguities.
Problemi mladih v Sloveniji: raziskava s poudarkom na kakovosti bivanja, stanovanjih in delovnih mestih
Authors: Bučinel Martin , Koželj Mia , Krebs Ema , Krnjak Barbara , Požar Luka , Prekoršek Barbara , Prodan Lea , Sotenšek Domen , Šmerc Tina , Tominec Jure , Razpet Branka , Nared Janez
Published: March 2023

V prispevku smo preučili, kako problematiko mladih dojemajo mladi. Izvedli smo anketo, ki smo jo nadgradili s ciljno usmerjenimi intervjuji. Mladi kot najbolj perečo opredeljujejo stanovanjsko problematiko, sledijo druženje, medosebni odnosi in vključevanje v družbo, problematika delovnih mest pa pri ocenjevanju kakovosti življenja v občini bivanja ni v ospredju, ji pa večji poudarek namenjajo pri predlogih rešitev. Podrobnejša analiza pokaže na razlike med posameznimi skupinami mladih: (1) med živečimi na podeželju in v mestu, (2) med dijaki in študenti ter delovno aktivnimi ter (3) med tistimi z rešenim stanovanjskim problemom in tistimi, ki stanovanjskega problema še nimajo rešenega. V primerjavi s predhodnimi študijami presenečajo zlasti problem medsebojnega druženja, sobivanja s starejšimi in vključevanja v družbo. //

Main problems of Slovenian youth: A study focusing on life quality, housing, and jobs

This study investigates how youth problems are perceived by young people themselves. We conducted a survey supplemented by targeted interviews. Young people mention housing as the most pressing problem for them, followed by socialization, interpersonal relationships, and integration into society. In contrast, jobs do not feature prominently in their evaluation of the quality of life in their municipality of residence; instead, they place more emphasis on finding a solution. A more detailed analysis shows differences between different groups of young people: (1) between those living in the countryside and those living in the city, (2) between students and those that are employed, and (3) between those that have found their own place to live and those still looking for a place. Compared to previous studies, the problems of socializing, intergenerational cooperation, and integrating into society are particularly surprising.
Prilaščanje pokrajine Sečoveljskih solin: naravna in kulturna dediščina
Authors: Topole Maja , Pipan Primož
Published: March 2023

Prispevek preučuje neustrezno upravljanje solinske pokrajine kot dediščine. Predstavi Sečoveljske soline kot del kulturne pokrajine, ki se je verjetno začela razvijati že v antiki, pisni viri pa obstajajo od 13. stoletja dalje. Poudarek je na območju Fontanigge, Muzeju solinarstva, dediščinjenju srednjeveškega solinarstva, komercializaciji Sečoveljskih solin, dediščinjenju narave in biodiverzitete ter s tem povezani problematiki upravljanja srednjeveške solinarske dediščine na območju Fontanigge. Prepad med dediščinjenjem narave in dediščinjenjem kulture korenini tudi v strokovnem in uradnem poimenovanju, izhajajočem iz zakonodaje. Ključna ugotovitev je nesmiselnost umetnega ločevanja dediščine na naravno in kulturno, še posebej v primeru kulturne pokrajine, kjer bi morali biti zastopani tudi običaji in tradicije prebivalcev.

The appropriation of the Sečovlje saltpans landscape: natural and cultural heritage

The paper examines the inadequate management of the landscape as a cultural heritage. It presents the Sečovlje Saltpans and saltworks as part of the old cultural landscape, Fontanigge with the Museum of Salt Making and the heritage of medieval salt making, the commercialization of the Sečovlje Saltpans, the heritagization of nature and biodiversity, and the related conflict in the management of the medieval salt making heritage in the Fontanigge area. The gap between the heritagization of nature and heritagization of culture has its roots also in the professional and official naming resulting from the legislation. The main finding is the absurdity of the artificial Cartesian separation of heritage into nature and culture, especially in the case of the cultural landscape, where the customs and traditions of the inhabitants should also be represented.
Reformas y nuevos proyectos de puentes en el municipio de Lugo por su arquitecto Nemesio Cobreros a finales del siglo XIX
Authors: Louzao-Martínez Francisco-Xabier
Published: March 2023

Solemos considerar el diseño y realización de puentes como obra de los ingenieros, si bien no es hasta el siglo XVIII cuando adquieren especial protagonismo. Hasta entonces, y aún mucho tiempo después, como podemos comprobar en este estudio, serán los arquitectos quienes se encuentren detrás de estas obras. Es el caso del que fue arquitecto municipal, provincial y también diocesano (de Lugo y Mondoñedo), Nemesio Cobreros y Cuevillas, quien deberá enfrentarse a reformas y proyectos de nueva planta, dentro de su ejercicio al frente de las obras del consistorio, en un capítulo que resulta desconocido hasta estos momentos en su vida profesional, a pesar de haberse estudiado su amplia labor en la arquitectura institucional, religiosa, escolar, privada o de recreo, convirtiéndolo en un personaje al que tanto debe la ciudad en su configuración arquitectónica y urbanística.
Lozère, « pays des sources »
Authors: Fock-Chow-Tho Cécile
Published: March 2023

Département de moyenne montagne, la Lozère est souvent comparée à un château d’eau alimentant trois bassins versants. L’eau est partout présente, abondante sur la Margeride et l’Aubrac, souterraine sur les causses. Sur les Cévennes s’accumulent des masses de pluies, violentes au printemps et à l’automne, renflouant régulièrement sources et cours d’eau malgré la chaleur méditerranéenne. L’eau est une richesse qu’il faut préserver mais aussi dompter. Le patrimoine bâti en lien avec cet élément est donc, de la même façon, omniprésent. S’il est souvent difficile à dater de manière absolue, il participe à la vie quotidienne des habitants, sans cesse entretenu, voire reconstruit. Le XIXe siècle marque un usage de l’eau démultiplié, avec l’ère industrielle. Le XXe siècle, avec l’utilisation intensive du béton, a modifié un certain nombre de paysages en créant digues et barrages.Cet article est volontairement thématique et non chronologique en raison des difficultés de datation de la plupart des ouvrages vernaculaires. Deux thèmes principaux y sont développés : la gestion de l’eau et l’eau comme vecteur économique. Sa gestion efficiente est essentielle et l’été qui vient de s’achever montre que le développement anarchique nuit à la ressource. La Lozère conserve encore beaucoup d’installations, certaines aujourd’hui inutilisées, mais d’autres encore en usage. Cet article dresse donc un panorama des plus intéressantes d’entre elles.
L’utilisation de la pierre pour la construction et la réfection des canaux d’arrosage de Cerdagne : entre fonctionnalité, politiques publiques et conservation du patrimoine (Pyrénées-Orientales)
Authors: Candau Sylvie , Deroche Olivier
Published: March 2023

Dans la haute plaine de Cerdagne, dans les Pyrénées-Orientales, l’utilisation de la pierre était fréquente dans la construction de canaux d’arrosage, notamment la pierre taillée granitique, autant pour l’édification des ouvrages d’art que pour le linéaire des canaux. Le travail du granit, patrimoine bâti et technique très implanté en Cerdagne, a favorisé l’utilisation de ce matériau dans la construction des canaux d’arrosage, notamment entre 1850 et 1930.Après avoir replacé dans leur contexte historique et géographique la présence de canaux d’arrosage dans la haute plaine de Cerdagne et l’utilisation de la pierre taillée, l’article s’attachera dans un premier temps à mettre en avant des sections de canaux et des ouvrages d’art reprenant ce matériau. Dans un second temps, il ouvrira une réflexion vis-à-vis du maintien et de la sauvegarde de ces éléments du patrimoine hydraulique bâti régional au regard des politiques publiques de soutien aux infrastructures hydrauliques.
L’anthroposystème des Pyrénées à Toulouse : une archéologie du fleuve et des territoires ruraux
Authors: François Anh Linh , Venco Clément
Published: March 2023

Depuis 2011, des travaux universitaires et des programmes de recherche sont menés en région Occitanie entre les Pyrénées centrales et la rivière Tarn, donnant lieu en 2021 à la création du projet collectif de recherche (PCR). Ce collectif interdisciplinaire, universitaire et associatif, étudie les relations Homme/Milieu sur le bassin versant de la Garonne amont, des Pyrénées centrales à Toulouse, autour de l’axe fluvial Garonne. Un aperçu des travaux du PCR est présenté autour de la zone d’atelier Boussens-Cazères qui permet d’apporter les premiers éléments de compréhension entre l’occupation et l’exploitation anthropique de l’espace fluvial avec les réponses et réajustements environnementaux, entre le XVe et le XIXe siècle.
Domestic Waste Incinerator Design with Bio-Mass Fuel
Authors: Antono Vendy , Nurhasanah Roswati , Chairat Arief Suardi Nur
Published: March 2023

The high activity of offices, households or industries causes a lot of waste and it’s still a major problem that requires a solution with minimal impact. The combustion process is an alternative method of effective waste treatment. Incineration is a solid waste treatment process by burning at more than 800°C to reduce combustible waste that cannot be recycled, kill bacteria, viruses and toxic chemicals. Currently, the use of incinerator technology requires a lot of combustion energy from fuel oil or gas, so the operational costs are high and the the unit price is relatively very expensive. Incinerator’s design without a combustion engine, it is hoped that will save combustion energy to minimize operationals and production costs of the incinerator. The incinerator design process provides the type and yield of the incinerator, operating conditions, and the basic size of the reactor shaped of a cylindrical with a diameter of 24 cm and a height of 50 cm. The incinerator prototype construction uses assembly techniques and basic welding for metal materials and refractory cement casting. Incinerator’s Prototype testings show that the incinerator is capable to burn several types of waste, including: plastic, paper, wood, organic waste, etc. where the incinerator's combustion chamber temperature can reach 1091OC. The incinerator’s capacity will accommodate 10 kg of waste while the processing time varies according to the kind of waste.
Stress and Fatigue Life Simulation of Camshaft with Structural Static ANSYS Approach
Authors: Andoko  , Prasetya Riduwan , Gapsari Femiana
Published: March 2023

The failure occurred in the camshaft of the minibus vehicle after 14 years of use and a failure analysis was carried out to find the cause. The purpose of this paper is to simulate a failed camshaft by evaluating stress and fatigue using the ANSYS structural static approach to find the cause of the failure. Camshaft meshed with a size of 5 mm for the outer part of the fracture and 3 mm on the fracture. The load given is force (1400 N) and torque (113 Nm) and the support is fixed support on the second bearing. The stress shows that the applied load does not because fracture based on the theory of maximum normal stress and Mohr's criteria, the location of the highest and lowest stresses is not in the fault area, and fatigue life without defects produces infinite cycles or will not fail, and fatigue life simulation with defects results in a reduction in life. Based on these parameters, failure is caused by defects in the fractured part with an indication of the location of the fracture beyond the greatest potential for fracture and lower fatigue life.