bluuebunny/crossref_metadata_2025_split huggingface dataset:
The CIMR satellite– challenges and design solutions for AOCS system
Authors:   Esa, Noordwijk, Netherlands, Santilli Francesco , Hyslop Andrew , Triggianese Mariel , Sallusti Marcello , Santoni F. , Primavera A. , Zaccari G. , Gennari F. , Colella A. , Ficorilli M. , Kornienko Andrey 
Published: January 2024

The Copernicus Imaging Microwave Radiometer (CIMR) is a European Earth Observation mission consisting of 2 satellites (with an option of the extension to the third one). It will provide high resolution global monitoring of the Earth surface emissions across various frequency bands, in particular floating sea ice parameters. The 3-axis stabilized spacecraft(s) will operate in a sun synchronous orbit with 817 km altitude. The instrument features a deployable mesh reflector with the diameter of 8 meters and its feed cluster, which rotates at 8 rpm to produce a 1900km wide ground swath.
The CIMR mission is currently in the C/D development phase and is being developed by a European space consortium with Thales-Alenia-Space Rome as a prime contractor.
The unique configuration consisting of the 3-axis stabilized platform and a spinning instrument poses various technical challenges for the AOCS design. The design drivers have been identified as follows:
•Provision of onboard angular momentum management to accommodate for large rotating instrument.
•Sophisticated spacecraft dynamic phenomena caused by
a)flexibility of the deployable rotating antenna
b)static and dynamic unbalance of the rotating instrument
c)fuel sloshing
•Capability to perform collision avoidance maneuvers throughout nominal operation and controlled reentry at the end of mission lifetime
•Managing the onboard Fault Detection, Isolation and Recovery (FDIR) with the objective of maximizing the scientific operation.
This paper gives an overview of the CIMR AOCS design, in particular
•Description of the avionics hardware setup
•Basic AOCS modes and transitions
•FDIR concept description
Besides the general overview few critical design solutions developed for CIMR will be presented in more detail:
•Static and dynamic unbalance on-board estimation using gyro rate measurements and compensation through active balancing system
•Preliminary design of onboard control laws that meet the performance requirements and guarantee the overall systems stability and robustness in presence of undesired coupling caused by internal disturbances, flexible dynamics, and time-varying uncertainties.
•Controlled reentry manoeuvre through multiple apogee thruster firings in presence of critical drag at perigee passages.
Study of re-entry guidance for orbital recovery and rocket first stage recovery
Authors:   Jaxa, Tsukuba, Japan, Matsumoto Shuichi , Arai Hisaaki , Sakai Tomohiko 
Published: January 2024

For new space transport missions such as orbital recovery from Low Earth Orbit (LEO) and the rocket first stage recovery, accurate reentry guidance has become increasingly important. JAXA realized two orbital recovery missions, Orbital Reentry Experiment (OREX) and HTV Small Re-entry Capsule (HSRC). The recovery accuracy of OREX is about 100km and those of HSRC is about 10km. However practical capsule recovery system will need about 1km accuracy to land on Japan mainland. In this paper shows the way to realize 1km reentry guidance accuracy, on-orbit alignment, IMU-Drag Measurement-GNSS navigation, real-time integration guidance. guidance using wind information.
JAXA also has been studying rocket first stage recovery mission which uses reentry guidance using aerodynamics force until the final engine burn start. Issues of the reentry guidance of rocket first stage recovery are different from those of orbital recovery. The issues are followings.
(1)Short time of reentry guidance using aerodynamic force.
(2)High dynamics pressure of re-entry flight.
(3)How to combine aerodynamics reentry guidance and guidance using propulsion.
Since using aerodynamic reentry guidance might reduce the fuel consumption of rocket first state recovery, we have been investigating on reentry guidance for rocket first state recovery mission. This paper shows the difference between re-entry guidance for orbital recovery and those for rocket first state recovery. This paper also describes the issues of the reentry guidance for rocket first state recovery.
ТВЕРДЫЕ БЫТОВЫЕ ОТХОДЫ ГОРОДА ОШ И ПРОБЛЕМЫ ИХ УТИЛИЗАЦИИ
Authors: Болотбек Каримов , Аида Дурсунбаева , Алина Айбек кызы 
Published: January 2024

В статье обобщены сведения о составе и объемов твердых бытовых отходов г. Ош. Отмечено, что отсутствие стратегии управления отходами и необходимых подзаконных актов, несогласованные действия госструктур, тарифная политика служб, занимающихся саночисткой, не способствуют формированию устойчивой системы управления отходами. Дана санитарно-экологическая оценка современному состоянию мусорного полигона и рекомендованы рациональные пути их утилизации. Городская свалка г. Ош, функционирующая с 1975 года, исчерпала все свои ресурсы: будучи при строительстве запланирована на срок 15 лет, она эксплуатируется уже около 50 лет. При проектировании полигона небыли учтены не инженерно-геологический, не гидрогеологические условия местности. Строился он с нарушением санитарно-технических норм безопасности-хотя в проекте было заложено проведение работ по прокладке изолирующего слоя для предупреждения фильтрации токсичных веществ в грунтовые воды и почвенный слой.
Design and Construction of a 700kWth High-Temperature Sodium Receiver
Authors: Coventry Joe , Venn Felix , Potter Daniel , Asselineau Charles-Alexis , Gardner Wilson , Kim Jin-Soo , Logie William , McNaughton Robbie , Pye John , Stein Wesley 
Published: January 2024

The Australian Solar Thermal Research Institute (ASTRI) has been developing technologies designed to collect and store solar energy at high-temperature to drive a new high-efficiency power block based on the supercritical CO2 Brayton cycle. ASTRI is pursuing two alternative pathways: one based on the use of liquid sodium as a heat transfer fluid, and the other based on the use of solid particles. The current work describes ASTRI’s progress towards design and construction of a 700kWth prototype sodium receiver suited to this type of system, which will be installed and tested on Solar Field 2 at the CSIRO Energy Centre in Newcastle, Australia. The receiver is a cavity receiver with a circular aperture oriented at a tilt down towards the centre of the heliostat field. Inside the cavity are ten vertical tube banks in a semi-circular arrangement, with sodium flowing from the centre to the outside in a serpentine manner. Optical and thermal modelling at design point predicts aperture interception efficiency of 95.3%, receiver efficiency of 90.9% and thus a combined interception and receiver efficiency of 86.6%. Conservative flux limits are set based on the tube material’s (Alloy 625) time independent tensile strength, which is dominated by creep for the sodium temperatures considered. In the event of incident, the receiver is designed to drain and a door closes over the aperture to limit smoke egress. Insulation is SiO2-CaO-MgO blanket, and all pipes are heat traced. Fabrication of the receiver was completed in July 2022 and first on-sun testing is expected in September 2023.
“Businessmen, they drink my wine”: Jimi Hendrix’s Electric Ladyland Album
Authors: Alleyne Mike 
Published: January 2024

ABSTRACT
This brief discussion (with part of its title extracted from the lyrics of “All Along the Watchtower”) provides music business contexts related to the third Jimi Hendrix Experience album, Electric Ladyland (1968), the guitarist’s first and only double album issued during his lifetime. The article refers to crucial advances in multitrack recording technology transforming the industry and coinciding with the recording of Electric Ladyland, the impact of the album’s packaging, and the commercial rise of the double-album format, as well as referencing the effect of opaque management on Hendrix’s career. The album’s release also intersected with the recording industry’s mass-market shift from mono to stereo releases, increased cassette consumption, and the rise of career-making stereo FM radio outlets.
Not Your Parents’ Top 20, or Is It?
Authors: Kelly Yvan James 
Published: January 2024

ABSTRACT
This article examines the intergenerational consistency of tastes and preferences in popular music over time. It tests Stigler and Becker’s theory that tastes are stable by searching for changes within elements of popular music. A data set of the top 20 songs from 1961 to 2021 was constructed and the variables of beats per minute, song length, and the instruments used in these hit songs were examined. ANOVA and OLS tests were used to search for significant changes that may have occurred over time. The results show beats per minute and the use of some instruments were consistent over time, but that song length and the use of other instruments has varied over time. The results indicate that the preferences of each generation change slightly from those of the previous generation, thus adding to the work of Stigler and Becker.
Applicability Analysis of Cryptocurrency Market Based on Capital Asset Pricing Model
Authors: Liu Yuhan 
Published: January 2024

At present, there are approximately 9300 types of cryptocurrencies in the cryptocurrency market, with Bitcoin, Ethereum, and other representative cryptocurrencies receiving widespread attention. Currently, scholars have conducted a lot of research on stock pricing using the Capital Asset Pricing Model (CAPM), but there is little research on the application of CAPM in the emerging cryptocurrency market. This article uses the CAPM to conduct an applicability analysis of CAPM of the top 10 cryptocurrencies in the cryptocurrency market from August 1 2021 to July 31 2023. The analysis process involves first conducting a mathematical analysis of the returns and coefficient of cryptocurrencies, and then using the OLS regression model to fit the cryptocurrency data and CAPM formula with analyses of the OLS regression results. The research conclusion of this article is that in most cases, CAPM is not applicable in the cryptocurrency market. This article demonstrates an applicability analysis of CAPM in the cryptocurrency field, providing reference value for scholars conducting research in this field and investors in cryptocurrencies.
DESAFIOS E PRÁTICAS DA EDUCAÇÃO AMBIENTAL NA ESCOLA PRAXEDES RIBEIRO
Authors: Cordeiro Domingos Fernando de Macedo , Da Silva Eldeenaldo Ferreira , Sales Reinaldo Eduardo da Silva 
Published: January 2024

Este artigo apresenta uma pesquisa relacionada aos desafios e práticas da educação ambiental na Instituição de Ensino Escola Praxedes Ribeiro que está localizada na comunidade Santa Ana do Peripindeua no município de Mãe do Rio/PA, nosso intuito foi de compreender o grau de saberes que os docentes apresentam sobre educação ambiental e suas práticas docentes, a escola em questão está em uma comunidade que anteriormente, por exemplo, era formada por um bioma, cuja paisagem, era com muitas florestas, igarapés e o rio Peripindeua que divide os Municípios: Mãe do Rio e Irituia, identificamos atualmente diversos problemas de ordem sócio ambiental. Coletamos os relatos por meio de questionário com perguntas abertas e fechadas entregues na própria escola. As questões versavam sobre que ações a escola realiza em direção à educação ambiental, quais os impactos ambientais ocorrem na comunidade e escola, que mecanismos podem ser usados para mitigar esses impactos e que ações de sustentabilidade a escola pode desenvolver no contexto de uma educação ambiental transformadora e emancipatória. Os procedimentos incluíram a construção de um quadro teórico de referência e pesquisa de campo que ocorreu em três momentos. No primeiro foi apresentada a pesquisa para a direção da escola, solicitada sua autorização e selecionados os participantes. No segundo momento foi assinado o termo de consentimento livre e esclarecido e entregue para cada sujeito uma folha com as perguntas da pesquisa, os participantes da pesquisa foram 10 professores que atuam na escola supracitada, a devolução aconteceu alguns dias depois, no último procedimento foi à tabulação e análise dos dados. Os resultados da pesquisa indicam que 40 % dos entrevistados entendem que a escola precisa incluir em seu currículo, ações conscientizadora, que estimule a prática da sustentabilidade, contribuindo na transformação do processo de ensino e aprendizagem relacionado ao cenário critico ambiental atual na comunidade e escola em parceria com a Secretaria de Meio Ambiente do Município de Mãe do Rio.
Exploring Teaching Beliefs, Efficacy, Innovation, and Organisational Atmosphere in Western China Universities
Authors: Peng Ju Guo , Wen-Chuan Wu 
Published: January 2024

Background: In response to the challenges posed by the information economy, Chinese education, like many other global educational institutions, has undergone significant changes. The economic expansion and educational progress in China have led to an improvement in the country's overall educational standards. However, the economic disparities between the eastern and western regions have resulted in lower living standards in the western part of the country. Notably, there are substantial differences in economic and educational growth between the eastern and western regions, with the eastern region experiencing rapid expansion, while the western sector lags behind, particularly in the realm of university education.

Objective: This review explores teaching beliefs, efficacy, innovation, and organizational atmosphere in Western China Universities, aiming to understand the dynamics in the context of regional economic and educational disparities.

Method: Recent research in China on teaching beliefs and related aspects is emerging. Scholars emphasize adopting progressive educational values aligned with contemporary society's complexity. The study aligns with the pedagogical shift towards student activation through methods like inquiry-based and collaborative learning.

Results & Conclusion: The review emphasizes disparities between eastern and western China, highlighting the crucial role of positive teaching elements in enhancing outcomes in Western China Universities. Recommendations include addressing economic and educational gaps and adopting progressive educational values for better alignment with societal needs.
Efectos biopsicosociales de las migraciones masivas y la violencia sistemática
Authors: Ureta Morales Francisco José , Bauer Luna Estuardo , Tzoy Pablo Saturnino , Soto Cabrera Carlos Javier 
Published: January 2024

La presente revisión documental se enfoca en los efectos biológicos, psicológicos, sociales y culturales que las migraciones masivas y la violencia sistemática producen en las personas. Se inició la investigación documental definiendo el enfoque biopsicosocial y cultural en la formación de profesionales, así como la definición más reciente de las migraciones masivas y la violencia sistemática. Se obtuvo evidencia documental de los efectos biopsicosociales y culturales que producen en las personas las migraciones masivas y la violencia sistemática. Las migraciones masivas producen el síndrome de Ulises o síndrome del inmigrante con estrés crónico y múltiple, el cual se caracteriza por afectar al eje hipotálamo-hipófisis-médula suprarrenal, al sistema hormonal y al muscular y manifiesta una amplia sintomatología. También produce estrés aculturativo, afecta la dinámica familiar y a los adolescentes y, ocasiona siete tipos de duelos.
La violencia sistemática tiene profundas repercusiones negativas para las personas que la sufren, afecta la identidad, el desarrollo emocional y psicológico de los niños, se asocia a sensaciones de ineficacia, vergüenza, desesperación y conductas autodestructivas. La violencia colectiva o política, produce la victimización secundaria, instaurar un clima emocional de miedo, ansiedad, aislamiento, menor confianza institucional y social. Se recomienda a las autoridades, docentes y departamentos de la Escuela de Ciencias Psicológicas, incluir esta temática en la docencia, servicios e investigación.
Metodologia de Pesquisa em Engenharia de Software
Authors:   Universidade Federal do Rio de Janeiro, Ris-Ala Rafael 
Published: January 2024

Todo artigo científico transmite uma mensagem. No entanto, diversos profissionais enfrentam muitas dificuldades ao desenvolvê-lo, como a escolha do método a ser utilizado e o conteúdo a ser escrito. Por exemplo, você pode realizar um experimento extraordinário, mas se não souber como redigi-lo, não obterá êxito. Da mesma forma, você pode escrever bem, mas se não conduzir a pesquisa adequadamente, também não alcançará sucesso. O propósito desta obra é prepará-lo em todo o processo de produção científica e habilitá-lo a desenvolver trabalhos acadêmicos de alto impacto. Publicar um artigo científico é uma forma de expressar sua competência, criatividade e entusiasmo pela área de interesse. Para aprimorar seu trabalho é preciso reconhecer em que etapa você se encontra. Assim, este livro pretende orientá-lo em cada atividade da pesquisa, detalhando o ciclo de vida da produção científica em cinco etapas: definição, execução, redação, publicação e divulgação da pesquisa. Este é o guia definitivo para desenvolver artigos científicos de sucesso em Engenharia de Software. Além disso, ele também é relevante para diversas áreas do conhecimento, pois traz uma visão ampla da ciência, aborda conhecimentos modernos e detalha cada etapa da produção científica de forma ilustrada e didática. Esta obra é essencial para estudantes e professores, bem como para profissionais que desejam enriquecer seus projetos corporativos. Compreender a “Metodologia de Pesquisa em Engenharia de Software” permite a você: •	elaborar seu plano de pesquisa; •	conduzir os principais métodos de pesquisa em Engenharia de Software; •	escrever seus artigos de forma consistente; •	consultar as principais bases científicas; •	promover sua pesquisa para a sociedade; •	adquirir dicas, dinâmicas práticas e ferramentas úteis; •	tornar-se um pesquisador relevante; e •	desenvolver autonomia na realização de sua pesquisa acadêmica.
Calidad fisiológica de semilla en dos poblaciones de maíz criollo mejorado
Authors: Ruiz Torres Norma Angélica , Rincón-Sánchez Froylán , Bautista-Morales Víctor M. , Martínez-Reyna Juan M. , Burciaga Dávila Hilda Cecilia , Olvera-Esquivel Magdalena 
Published: January 2024

Los atributos de calidad fisiológica de semillas evaluados en laboratorio, son componentes importantes para ampliar la caracterización del germoplasma a utilizar en los programas de mejoramiento, además de proporcionar información sobre la emergencia, establecimiento en campo y capacidad competitiva en diversas condiciones de siembra. Se evaluó la calidad fisiológica de semilla en dos poblaciones de maíz criollo mejorado, las cuales se obtuvieron en el ciclo PV 2005 en Celaya, Gto., México, bajo diferentes estrategias de selección y mejoramiento genético. El estudio en el laboratorio se estableció en un diseño experimental en bloques completamente al azar, en los cuales se evaluaron las variables, plántulas normales al primer conteo, porciento de germina ción, plántulas anormales, semillas sin germinar, peso seco de plántulas, longitud media de plúmula y radícula. Los análisis de varianza para la fuente de variación bloques mostró diferencias (p 0.05), en la longitud media de plúmula, lo < que justifica el haber empleado este diseño. El análisis mostró diferencias (p 0.01) entre poblaciones, siendo la selección < precoz, la que mostró mayor eficiencia fisiológica en germinación, producción de materia seca y longitud media de plúmula; estas diferencias entre poblaciones se pueden atribuir a la conformación germoplásmica que presentan, ya que la población selección precoz, contiene germoplasma mejorado en su constitución genética.
Impact of Continuing Medical Education on Health Care Provider Performance in a Medical University, Karachi, Pakistan.
Authors: Syed Imran Mehmood  , Adina Anwar  , Erum Khan  , Sidra Zaheer  , Mahjabeen Khan  
Published: January 2024

Introduction: Basic life support (BLS), is the chain of survival and decreases the rate of cardiac arrest; health care professionals should know at least how to perform BLS individually as they may encounter such emergency very often. In the developed world, sudden cardiac death represents the single largest cause of natural death accounting for 12–18% of total mortality and 50% of cardiac mortality.
Objectives: To determine the level of awareness regarding Basic Life Support and knowledge of involved skills and its practice among medical and non-medical personnel.
Methodology: A retrospective study conducted by using valid questionnaire regarding Basic Life Support by 323 personnel. The results were analyzed with SPSS version 16.
Results: Twenty-five questions were used to assess the level of knowledge/awareness and skills after BLS training. The percentage of correct answer varied from 33.1% to 95.7% for knowledge related items; and for skills items, it was varied from 35.3% to 68.4%.
Conclusion: We recommend that Cardio Pulmonary Resuscitation/Basic Life Support should be a basic skill across all medical and non-medical personnel.
Key words: Cardio-pulmonary resuscitation, Basic Life Support, KAP.
Health Services Performance for TB Treatment in Two Districts of Punjab –DHQ Sahiwal & BVH Bahawalpur.
Authors: Sehar Iqbal  , Mairaj Muhammad  , Abdul Samad Qureshi  
Published: January 2024

Introduction: Pakistan ranks 5th among the 22 countries with the highest incidence levels of tuberculosis (TB) smear-positive case; TB remains the leading killer infectious disease in the world, with 1.7 million death.
Objective: The objective of our study is to determine the health services performance for TB treatment in DHQ, Sahiwal and BVH, Bahawalpur with the attributes for treatment.
Methodology: For this cross-sectional study 100 TB patients were identified through simple random sampling. Relevant information was collected by using the Primary Care Assessment Tool adapted for TB care. Data was entered and analyzed by SPSS version 22 and presented as number and percentages.
Results: Results from both cities for male and female patients were recorded with respect to “Access to treatment”, ‘Home visits’, “bond”, “professional respond clearly” and “range of services”. The dimension “coordination’, “family focus”, and “Professional ask about living conditions” were also recorded.
Conclusion: Incentives to improve care organization and management practices can contribute towards a better performance of health services in TB treatment in Pakistan and all over the world.

Keywords: Health services, Performances, TB treatment.