bluuebunny/crossref_metadata_2025 huggingface dataset:
قياس وتحليل الرضا الوظيفي وتطوير الأداء للمنتسبين في المفوضية العليا المستقلة للانتخابات - مكتب دهوك للعام 2023
Authors: القهواجي نزار , حاجي باور
Published: February 2025

تهدف هذه الدراسة الى تحسين وزيادة كفاءة الموظفين، وتطوير بيئة العمل من اجل تحقيق مستوى رضا وظيفي اعلى لمنتسبي المفوضية العليا المستقلة للانتخابات- مكتب دهوك للعام 2023 من خلال ثلاثة أبعاد أساسية وهي (طبيعة بيئة العمل، والتعويضات المباشرة مثل (مبلغ الراتب والمكافآت والحوافز والجزاءات والرواتب والحوافز)، والرضا عن النمو والحوافز غير المباشرة مثل (الإرتقاء الوظيفي). اعتمدت الدراسة على المنهج (الوصفي) المدعم بالرسوم والجداول والمقاييس الاحصائية، وبالإعتماد على استمارة الاستبانة في جمع البيانات بأسلوب ليكارد ذات الاسئلة المغلقة ووالاسئلة المفتوحة. وتم الاعتماد على معاينة دراسة الحالة بأسلوب الحصر الشامل في جمع البيانات، لتشمل جميع مكاتب ومراكز الانتخابات في دهوك والبالغة (42) مركزاً، كما بلغ عدد الأفراد المشمولين بالاستبانة (105) من اجمالي عدد الموظفين الكلي مع قياداتها ومسؤولييها والبالغ عددهم (174) موظفا، لتمثل المعاينة نسبة مئوية مقدارها (60.3%) وهي تعد حسب السياقات الاحصائية عينة كبيرة لضمان التمثيل العالي للمجتمع المستخدم. من أهم ما توصلنا له من نتائج هي أن محور بيئة العمل ومحور الحوافز المباشرة كالـ(المكافآت) هما الاكثر تاثيرا في الامد القصير، في حين تبين بان محور النمو والارتقاء الوظيفي الاكثر تاثيرا في الامد المتوسط والطويل. للمنتسبين في مفوضية انتخابات دهوك
قياس أثر بعض متغيرات الاقتصاد الكلي في النمو الاقتصادي لتركيا للمدة 1985-2022
Authors: سطام ندى , قاسم سعاد
Published: February 2025

يسعى البحث عبر جانبه التطبيقي الى قياس اثر بعض متغيرات الاقتصاد الكلي المتمثلة بـ(عرض النقد بالمفهوم الواسع، رصيد الحساب الجاري، الاستثمار الاجنبي المباشر، اجمالي التكوين الراسمالي الثابت) في النمو الاقتصادي باعتباره المتغير المعتمد للمدة 1985-2022، استنادا الى فرضية مفادها ان المتغيرات المستقلة تتباين من حيث طبيعة ودرجة تاثيرها في المتغير المعتمد كما يفترض البحث ان هنالك علاقة تكامل مشترك بين متغيرات البحث في المديين القصير والطويل، وللوصول الى هدف البحث وتاكيد فرضيته تمت الاستعانة بمنهجية الانحدار الذاتي للابطاء الموزع ARDL ووفقا لذلك توصل البحث عبر نتائج التقدير الى بعض الاستنتاجات ومن ضمنها ان نتائج التقدير اكدت وجود تكامل مشترك بين متغيرات الانموذج في المديين القصير والطويل وإن جميع المتغيرات المستقلة تمتلك دلالة إحصائية، مما يدل على قوتها النسبية في التأثير على المتغير المعتمد. وقد وُجد أن تدفقات الاستثمار الأجنبي كانت الأكثر تأثيرًا، يليها في الاهمية النسبية متغير رصيد الحساب الجاري، يُبرز هذا الأمر الدور الحيوي لكل من الاستثمار الأجنبي ورصيد الحساب الجاري في تعزيز النمو الاقتصادي التركي، حيث يُعتبر كلاهما مؤشرين رئيسيين لاستدامة الاقتصاد المحلي واستقرار.
واستكمالًا لسياق البحث تم تقديم مجموعة من المقترحات التي من شأنها خدمة البحث عبر ايجاد حلول تساعد في استثمار الجوانب الايجابية لتاثيرات المتغيرات المستقلة بالشكل المطلوب، وتعمل على تقليل الاثار السلبية.
أثر التنوع في الأمن السيبراني على حماية المعلومات المحاسبية في المستقبل
دراسة تحليلية لآراء المهنيين والأكاديميين في مدينة أربيل
Authors: خضير جرجيس , حنا نسيم , حمدين دشتي
Published: February 2025

يهدف البحث إلى بيان دور الأمن السيبراني في حماية المعلومات المحاسبية المستقبلية نظرا لأنها تحتوى على خطط واستراتيجيات الشركة المستقبلية و التي ينبغي حمايتها وعدم وقوعها في ايدي المنافسين، ولتحقيق هدف البحث تم توزيع استمارة استبيان الكترونية على عينة مكونة من (132) فردًا من المهنيين والعاملين المتخصصين في مجال نظم المعلومات المحاسبية بالإضافة الى أكاديمي المحاسبة في الجامعات والمعاهد في مدينة أربيل، وتم تحليل نتائجها بواسطة البرنامج الإحصائي (SPSS)، وتوصل البحث إلى عدد من الاستنتاجات أبرزها أن هناك تأثير ذو دلالة إحصائية للتنوع في الأمن السيبراني في حماية المعلومات المحاسبية المستقبلية، وفي الأخير قدم البحث بعض التوصيات أهمها ضرورة قيام الشركات بحماية معلوماتها المحاسبية المستقبلية من خلال وضع كلمات مرور معقدة وعدم إتاحة اتصالات الشركة لأي طرف ثالث دون مفتاح تشفير خاص. بالإضافة إلى إجراء اختبار للتحقق من مدى تلبية التطبيقات للمتطلبات الأمنية.
Book Review: Anne Farrow, Joel Lang, and Jenifer Frank, Complicity: How the North Promoted, Prolonged, and Profited from Slavery.
Authors: Grizzle Gary
Published: February 2025

The authors of Complicity: How the North Promoted, Prolonged, and
Profited from Slavery were raised, educated, and employed in the North
and once thought they knew something about the history of slavery in the
United States. Specifically, they were convinced that Northerners were
largely sympathetic to the plight of enslaved Africans and that systematic
racial exploitation and mistreatment were confined to the less
enlightened South. However, when the newspaper they worked for, The
Hartford Courant, ran a story about a local company apologizing for
having provided slaveholders with insurance on their captives, they
began to question their views. As a result, these journalists embarked on
an investigation of Northern involvement in slavery and Complicity is an
account of their findings: an account that has several merits in my
opinion.
Book Review: Calvin J. Smiley, Purgatory Citizenship Reentry, Race, and Abolition.
Authors: Joachim Kathleen
Published: February 2025

In his book Purgatory Citizenship Reentry, Race, and Abolition, Calvin
Smiley argues the contradictory nature of reentry and how those newly
released from incarceration find themselves caught up in a web of
confusion and complexity when trying to restart their lives as free
individuals. Smiley relies upon ethnographic fieldwork, life-history
interviews, informal conversations, and focus groups to explore how
reentry does not always equal redemption. Those who were formerly
incarcerated must endure the stress of society’s social stigmas and the
diminishment of their legal rights. Caught up in this cycle, they attempt
to navigate the lingering results of the carceral system. This state of
virtual nonexistence prolongs their access to support and deprives them
of opportunities as their seemingly never-ending punishment continues.
Smiley champions abolitionist views for those who suffer through this
Purgatory Citizenship.
Optimization of the Role of the Corruption Eradication Commission in the Efforts of Corruption Prevention and Eradication
Authors: Bunga A. S. Abadiyah  , Veithzal Rivai Zainal  , Aziz Hakim
Published: February 2025

Corruption is a major problem that hinders Indonesia's progress, undermines government systems, and deteriorates public services. The Corruption Eradication Commission (KPK) plays an important role in preventing and combating corruption. However, the KPK's success is still hindered by a number of problems, including political resistance, lack of resources, and regulatory weaknesses. The purpose of this study is to evaluate the efforts made by the KPK to maximize their role in preventing and combating corruption by focusing on the elements of education, prosecution, coordination, and regulatory strengthening. A descriptive analysis of KPK's policies, programs, and implementation was used in this study. The results show that KPK's education programs are effective in raising public awareness, but changes are needed to reach more people. Challenges such as legal barriers and political pressure continue to exist in the field of prosecution, although major cases have been resolved successfully. Inter-agency coordination has been assessed, but strengthening is needed to become more synergistic. Conversely, anti-corruption laws should be amended to correct legal weaknesses that are often used by corrupt actors.
To ensure sustainable corruption eradication in Indonesia, this study suggests enhancing KPK's institutional capacity, innovation in education programs, inter-agency policy harmonization, and regulatory revisions.
Evento de La Niña en Colombia: Recomendaciones para la caficultura
Authors: Gaitán Alvaro León , Flórez Claudia Patricia , García-López Juan Carlos , Machado Pablo Benavides , Gil-Palacio Zulma Nancy , Sadeghian Siavosh , Lince-Salazar Luz Adriana , Salazar-Gutiérrez Luis Fernando , Oliveros-Tascón Carlos Eugenio , Sanz-Uribe Juan Rodrigo , Ramírez César Augusto , Peñuela-Martínez Aída Esther , Rodríguez-Valencia Nelson , Quintero-Yepes Laura Vanessa , López Juan Carlos
Published: February 2025

Los efectos de La Niña en los sistemas productivos de café son diversos. En regiones con lluvias menores a los 1.500 mm anuales, el aumento en las lluvias favorece el crecimiento y desarrollo de cafetales; sin embargo, en regiones donde usualmente se presentan precipitaciones superiores a 2.500 mm por año, los excedentes de lluvia aunados a un menor brillo solar y reducción de la temperatura, pueden afectar negativamente la producción de las plantas de café.
Nutrición de los cafetales en Colombia, en escenarios de la niña
Authors: Sadeghian Siavosh , Jaramillo Alvaro
Published: February 2025

En aquellas localidades de la zona cafetera, donde históricamente la cantidad anual de la lluvia es relativamente baja (menor de 1.500 mm) y bien distribuida, un exceso de la precipitación, ocurrido durante un evento de La Niña, favorece la absorción de los nutrientes, sin que ocurran pérdidas por lixiviación; además, si esta condición se conjuga con suelos que tienen buena representación de poros capilares, la respuesta será más favorable.
Nutrición de los cafetales en Colombia: en escenarios El Niño
Authors: Sadeghian Siavosh , Jaramillo Alvaro , Duque Orrego Hernando
Published: February 2025

El manejo de la fertilidad del suelo mediante la aplicación de fertilizantes y enmiendas, es fundamental para el uso eficiente del agua por el cultivo y mejora la tolerancia al déficit hídrico. Cuando las plantas de café reciben una nutrición adecuada, sus raíces crecen más (tanto superficialmente como en profundidad) y extraen una mayor cantidad de agua y nutrientes; en contraste, ante una nutrición deficiente, el crecimiento de las raíces se ve limitado, afectando así su crecimiento y, por ende, la producción de frutos.
Formulaciones generales de fertilizantes: alternativas para una nutrición balanceada de los cafetales en Colombia
Authors: Sadeghian Siavosh , Duque Orrego Hernando
Published: February 2025

Para conocer y caracterizar la fertilidad de los suelos cafeteros de Colombia, se estructuró una base de datos con registros históricos de 255.019 muestras de suelos, analizadas en 20 departamentos cafeteros de Colombia, desde 1989 hasta el año 2016. La atención se centró en los macronutrientes frecuentemente contenidos en los fertilizantes y con los cuales se ha encontrado respuesta en café, es decir, nitrógeno (N), fósforo (P), potasio (K) y magnesio (Mg). Como indicador de la disponibilidad de nitrógeno para las plantas se tomó la materia orgánica del suelo (MO).
�C�mo participa el hongo Beauveria bassiana en el manejo integrado de la broca del caf�?
Authors: Bustillo-Pardey �lex Enrique
Published: February 2025

Al llegar la broca del caf�, Hypothenemus hampei, al pa�s y debido a su dispersi�n a las diferentes regiones cafeteras a principios de los a�os 90, se consider� como una estrategia importante la introducci�n de enemigos biol�gicos para la regulaci�n de sus poblaciones, siendo el hongo Beauveria bassiana uno de los primeros candidatos para este programa.
La broca del caf�...un insecto que se desarrolla de acuerdo con la temperatura y la altitud
Authors: Constantino Luis Miguel
Published: February 2025

Por su posici�n Tropical, la temperatura del aire en la zona cafetera colombiana presenta poca variaci�n durante el a�o; sin embargo, cuando ocurren eventos clim�ticos como El Ni�o y La Ni�a, como consecuencia del calentamiento o enfriamiento de las aguas del oc�ano Pac�fico ecuatorial, a nivel regional se presentan incrementos o disminuciones de la lluvia, la temperatura y el brillo solar.
Evite la dispersi�n de la broca durante la recolecci�n y el beneficio del caf�
Authors: Benavides Pablo
Published: February 2025

En cafetales ubicados en la zona central cafetera, se estim� que durante la cosecha principal, se recolecta entre el 66% y 74% de toda la broca presente en los cafetales. Esta broca es depositada en los costales y sometida al proceso de beneficio con el caf� cereza. Durante el beneficio, muchas de estas brocas mueren, pero otra parte vuela y se dispersa nuevamente a los cafetales.
El REPASE Actividad para el manejo de la broca del caf� en Colombia
Authors: Benavides Pablo
Published: February 2025

El repase se define como la recolecci�n de frutos de caf� secos, sobremaduros y maduros de los �rboles, y si es necesario del suelo, una vez hayan finalizado los per�odos de cosecha principal y mitaca. Es decir, el repase como pr�ctica de control cultural de la broca del caf�, debe realizarse dos veces en el a�o.
Gaya Komunikasi Orang Tua Melalui Bahasa Verbal dalam Membangun Motivasi Berprestasi Anak
Authors: Eva Evelina Hotmauli Sihombing  , Yanti Tayo  , Rastri Kusumaningrum
Published: February 2025

This research is motivated by the importance of appropriate and effective parental communication styles through verbal language in building achievement motivation in children. The focus of this research is how communication styles in verbal language are applied by parents of SDN Gunung Putri 05 students, with the aim of identifying and analyzing each parent's communication style and its impact on children's achievement. The method used is descriptive study through observation, in-depth interviews, and document analysis for data collection. The research results show that choosing the right communication style according to the child's needs greatly influences how the message is conveyed well, so that it can increase the child's motivation to achieve achievements, both in academic and non-academic fields, according to each child's interests and talents happily without coercion. In conclusion, the right communication style from parents can encourage children to be more motivated to achieve achievements.
Komunikasi Orang Tua Dan Anak Tunarungu Wicara Pada Kotak Menara Bekasi
Authors: Muhammad Syafiq  , Mayasari  , Tri Susanto
Published: February 2025

Speech deaf children have limitations in communication and interaction. Parents play an important role in supporting children with special needs in overcoming these limitations through adaptive and innovative communication patterns. Therefore, the purpose of this research is to know and understand how the application of communication between parents and children with special needs (ABK), especially children with speech deafness in Kotak Menara. This study uses a qualitative approach and phenomenological research method and utilizes Herbert Blumer's symbolic interaction theory to explore how parents and children understand each other and build meaning through their social interactions. The results show that the communication experience between parents and children with disabilities is not just an exchange of information, but also a process of forming deep meaning. They combine verbal and non-verbal communication to deal with the challenges posed by their children's limited ability to communicate.
Keywords: Deaf children with speech impairment, verbal and non-verbal communication, Kotak Menara
PENGARUH KOMUNIKASI ANTARPRIBADI ORANG TUA-REMAJA TERHADAP PERILAKU AGRESIF REMAJA SAAT BERPACARAN
Authors: Fachru Nur Fahmi Firmansyah  , El Karimah Kismiyati , Rachmaniar
Published: February 2025

In dating relationships, teenagers often engage in aggressive behavior, both sexual harassment, physical violence and verbal violence. Aggressive behavior in dating can emerge as a way to solve problems in romantic relationships. The purpose of this study was to analyze whether interpersonal communication between parents and children influences the aggressive behavior of teenagers when dating and to analyze whether there is a difference in the influence of interpersonal communication between parents and children on the aggressive behavior of teenagers when dating in big cities and in small cities. The study was conducted on 200 teenagers who were or had been dating in Bekasi City (representing big cities) and in Bekasi Regency (representing small cities) with 100 respondents each. Hypothesis testing using the t-test and Chow test. The results of the hypothesis test show that: (1) interpersonal communication between parents and children has an effect on aggressive behavior of adolescents when dating in Bekasi City, (2) interpersonal communication between parents and children has an effect on aggressive behavior of adolescents when dating in Bekasi Regency, (3) There is no difference in the effect of interpersonal communication between parents and children on aggressive behavior of adolescents when dating in Bekasi City and Bekasi Regency. For further research, researchers can add variables for the use of social media and expand the sample to several large and small cities in Indonesia.
Motif “Sedekah Online” Generasi-Z di TikTok
Authors: Anti Restiani Febrianti  , Mufti Fauzi Rahman  , Ira Hasianna Rambe
Published: February 2025

Pesatnya perkembangan platform live streaming telah menciptakan pola interaksi digital baru, terutama di kalangan generasi Z. Salah satu fenomena yang berkembang adalah “sedekah online” melalui virtual gift pada siaran langsung TikTok. Penelitian ini bertujuan untuk mengkaji motif generasi Z di Kota Bandung dalam memberikan virtual gift kepada akun TikTok @threeshester. Dengan metode kualitatif studi kasus, data dikumpulkan melalui wawancara mendalam dan observasi. Hasil penelitian menunjukkan bahwa motif utama dalam pemberian virtual gift meliputi hiburan, ekspresi identitas pribadi, interaksi sosial, dan apresiasi terhadap kreator. Pemberian virtual gift bukan sekadar kontribusi finansial, tetapi juga partisipasi aktif yang memperkuat keterlibatan audiens, memberikan pengakuan sosial, serta meningkatkan pengalaman menonton. Selain itu, sifat interaktif TikTok live mendorong keterlibatan audiens melalui interaksi langsung dengan kreator, menciptakan rasa komunitas dan koneksi emosional. Studi ini menyimpulkan bahwa fenomena virtual gifting mencerminkan budaya digital generasi Z yang semakin interaktif dan berbasis komunitas. Implikasinya, kreator konten disarankan untuk menjaga strategi interaksi yang inovatif, sementara pengguna perlu lebih bijak dalam pengeluaran finansial. Penelitian lanjutan dapat mengeksplorasi dampak jangka panjang dari fenomena ini terhadap pola konsumsi digital serta implikasi ekonominya bagi kreator konten.
Kata Kunci: Generasi Z, TikTok live streaming, virtual gift, interaksi digital, keterlibatan audiens
Understanding accessibility and disability in the planning profession: an examination of planners’ knowledge and practices
Authors: Biglieri Samantha , McQuillan Robert , MacDonald Dustin , Ross Timothy
Published: February 2025

Disability discrimination has been prohibited in Canada for decades, yet people with disabilities continue to experience inaccessible built environments. Canada’s most populous province – Ontario – has well-developed accessibility legislation but was recently evaluated to be in a ‘crisis state’ after 20 years of implementation. Planners have profound influence on built environments, thus we ask planners about their attitudes, perceptions and knowledge of accessibility and disability through interviews. We find limited understanding of accessibility and disability (in terms of definitions, legislation and policy), limited experience engaging with people with disabilities in their work/workplaces, and limited educational training. Importantly, planners were eager to learn more to enhance their practice. Offering insight into the status of the profession, we conclude with six actions to help planning bodies and practitioners advance more just communities.
Neoliberalism’s apotheosis? Class, capital and the ideological development of the UK Labour Party’s planning reforms
Authors: Fearn Gareth
Published: February 2025

Planning reform is a central part of the new UK Labour government’s programme. This article shows how their proposed reforms draw upon a neoliberal problematisation of planning developed by several think tanks, where the planning system is seen as creating delay, as overly regulatory and as providing too much space for deliberation. The article shows that Labour draws on this problematisation while developing its own solutions through a series of institutional fixes as part of its turn towards ‘modern supply-side economics’. The article argues that the foregrounding of planning reform in Labour’s programme is an attempt to align the interests of rentier and finance capital with those of the new petite bourgeoisie.
Awareness and evaluation of physical planning administration by residents of fragmented communities in Akure, Nigeria
Authors: Daramola Oluwole Philip , Olugbamila Omotayo Ben , Agbabiaka Hafeez Idowu , Alonge Zachariah Oloyede
Published: February 2025

This study evaluates the effectiveness of physical planning agencies in Akure, Nigeria. It fragments the study area into the core, the transition, the peripheral and the housing estate. A systematic random technique was used to select one out of every 20 residential buildings (5 per cent sample), comprising 108, 52, 66 and 53 buildings from each fragment, respectively, where 279 homeowners with five years of living experience in the communities were selected for a questionnaire. The study indicates that residents have negative evaluations of the physical planning practices of the regulation agencies in terms of granting plan approvals, monitoring of development, and supervising construction projects, and also in other practices such as creating planning regulation awareness, preparation and approval of residential layout, and design of open spaces. Hence the appropriate policies, some of which form the recommendations of this study, should be instituted to enhance the practices of the physical planning agency.
Multifractal analysis of Bitcoin price dynamics
Authors: Bucur Cristian , Tudorică Bogdan-George , Bâra Adela , Oprea Simona-Vasilica
Published: February 2025

This research employs Multifractal Detrended Fluctuation Analysis (MFDFA) to investigate multifractal properties in financial variables, including Bitcoin prices and economic indicators. Spanning 2019–2022, the analysis reveals multifractal scaling not only in Bitcoin prices, but also in economic indicators such as inflation rates and energy commodity prices. The non-linear singularity spectra unveil the multifaceted nature of scaling properties. Temporal analysis exposes intriguing trends in multifractality with implications for market efficiency. Furthermore, correlation analysis unveils connections among multifractal properties. For instance, a positive correlation between oil prices and Bitcoin suggests similar market forces. The log-log plot of fluctuation function Fq versus lag size demonstrates a power-law relationship, characteristic of multifractal systems. The empirical data’s alignment in log-log space suggests self-similarity in the Bitcoin time series, supporting multifractality. The calculated Hurst exponents values suggest varying degrees of multifractality across the years, with 2021 exhibiting the highest degree and 2022 the lowest. Furthermore, an asymmetry index (0.5767) deviating from 0.5 indicates that the multifractal nature of the Bitcoin market is not symmetric. This research enhances risk assessment and portfolio optimization in finance. It challenges the Efficient Market Hypothesis (EMH), emphasizing the significance of MFDFA in comprehending financial market and economic factor’s relationships.
Exploring distance learning in higher education: satisfaction and insights from Mexico, Saudi Arabia, Romania, Turkey
Authors: Lytras Miltiadis D. , Serban Andreea Claudia , Ntanos Stamatios
Published: February 2025

Education, notably higher education, faced a significant challenge during the last period. Our data exploratory study aims to provide insights into the key factors that define students’ Distance Learning (DL) in the current period. Based on the main findings, we justify our bold proposition for the current era of distance and blended learning in Higher Education. Our research study aims to understand cultural and national differences in four countries: Mexico, Saudi Arabia, Turkey and Romania. It contributes to the theory of DL with a model of six hermeneutic factors for the satisfaction of using the DL method. It investigated and confirmed the capacity of the components to explain 60% of the DL satisfaction variance. Our research study also emphasized the interpretation of the essential findings and the drafting of bold propositions for the DL practice, emphasising academic environments. We identified significant areas of improvement, and we suggested the orchestration of combined efforts. Our research promotes the strategic deployment of DL in the current context as a resilient strategy of institutions for high-impact training and targeting of huge audiences, with emphasis on the deployment of new tools and teaching methods customized for a new, unique value proposition of the DL.
Dust Scattering Albedo at Millimeter Wavelengths in the TW Hya Disk
Authors: Yoshida Tomohiro C. , Nomura Hideko , Tsukagoshi Takashi , Doi Kiyoaki , Furuya Kenji , Kataoka Akimasa
Published: February 2025

Planetary bodies are formed by coagulation of solid dust grains in protoplanetary disks. Therefore, it is crucial to constrain the physical and chemical properties of the dust grains. In this study, we measure the dust albedo at millimeter wavelength, which depends on dust properties at the disk midplane. Since the albedo and dust temperature are generally degenerate in observed thermal dust emission, it is challenging to determine them simultaneously. We propose to break this degeneracy by using multiple optically thin molecular lines as a dust–albedo-independent thermometer. In practice, we employ pressure-broadened CO line wings that provide an exceptionally high signal-to-noise ratio as an optically thin line. We model the CO J = 2–1 and 3–2 spectra observed by the Atacama Large Millimeter/submillimeter Array at the inner region (r < 6 au) of the TW Hya disk and successfully derive the midplane temperature. Combining multiband continuum observations, we constrain the albedo spectrum at 0.9–3 mm for the first time without assuming a dust opacity model. The albedo at these wavelengths is high, ~0.5–0.8, and broadly consistent with the L. Ricci et al., DIANA, and DSHARP dust models. Even without assuming dust composition, we estimate the maximum grain size to be ~340 μm, the power-law index of the grain size distribution to be >−4.1, and the porosity to be <0.96. The derived dust size may suggest efficient fragmentation with a threshold velocity of ~0.08 m s−1. We also note that the absolute flux uncertainty of ~10% (1σ) is measured and used in the analysis, which is approximately twice the usually assumed value.
Stellar X-Ray Variability and Planetary Evolution in the DS Tucanae System
Authors: King George W. , Corrales Lía R. , Bourrier Vincent , Dos Santos Leonardo A. , Doyle Lauren , Lavie Baptiste , Ramsay Gavin , Wheatley Peter J.
Published: February 2025

We present an analysis of four Chandra observations of the 45 Myr old DS Tuc binary system. We observed X-ray variability of both stars on timescales from hours to months, including two strong X-ray flares from star A. The implied flaring rates are in agreement with past observations made with XMM-Newton, though these rates remain imprecise due to the relatively short total observation time. We find a clear, monotonic decline in the quiescent level of the star by a factor of 1.8 across 8 months, suggesting stellar variability that might be due to an activity cycle. If proven through future observations, DS Tuc A would be the youngest star for which a coronal activity cycle has been confirmed. The variation in our flux measurements across the four visits is also consistent with the scatter in empirical stellar X-ray relationships with Rossby number. In simulations of the possible evolution of the currently super-Neptune-sized planet DS Tuc A b, we find a range of scenarios for the planet once it reaches a typical field age of 5 Gyr, from Neptune size down to a completely stripped super-Earth. Improved constraints on the planet's mass in the future would significantly narrow these possibilities. We advocate for further Chandra observations to better constrain the variability of this important system.
Granulation and Convectional Driving on Stellar Surfaces
Authors: Tschernitz Johannes , Bourdin Philippe-A.
Published: February 2025

Surface convection is important for the presence of magnetic activity at stars. So far, this convection is thought to be a result of heating from below, where convection cells rise and break up. New models reveal that surface convection is instead strongly driven by cooling from above. We compare two simulations of surface convection, one with a significant heating from below and one without. We obtain surface convection in both cases, and they show similar granulation patterns. The deep convection driven by heating from below is still evolving and asymptotically approaches a steady-state solution. We find that convection from below is not needed at all to form typical photospheric granulation. This indicates the possibility of a surface dynamo acting on stars without a convecting envelope. Even stars without a convecting envelope could therefore exhibit stronger magnetic and coronal activity than expected so far.
Security Environment: Sectoral Analysis and Implications for the Czech Armed Forces 2023
Authors: Stojar Richard , Kosárová Dominika , Pačková Miroslava , Frank Libor , Novotný Antonín , Potočňák Adam , Bízik Vladimír , Galba Jaroslav , Novotná Yvona
Published: February 2025

The objective of this collective monograph is primarily to assess the development of the broader strategic security environment of the Czech Republic in 2023 based on an analysis of individual sectors. An expert publication with this focus has been produced annually over the past decade, thus facilitating some long-term monitoring and identification of the principal development trends. The ambition of the Centre for Security and Military Strategic Studies (CBVSS, Centrum bezpečnostních a vojenskostrategických studií) of the University of Defence is to provide an alternative insight and to contribute to the ongoing discussion on the consequences of security development for the formulation and implementation of an effective defence policy of the Czech Republic. The text is primarily based on materials compiled by the CBVSS and presents the results of a comparative analysis of available open source materials. In its individual chapters, it also includes an assessment of the selected state, non-state, and transnational actors. A sectoral analysis, based on the approach of the Copenhagen School, was used for this book similar to the previous publications. Thus, the political, societal, environmental, military, and economic sectors are described here. Beyond this traditional definition, the technology sector is also included in this analysis because, given the focus of the CBVSS, it appropriately complements the traditional sectors, while dynamic developments in the technology sector have a major impact on the traditional sectors examined here, and in some places this connection is more pronounced than it has been in the relatively recent past. The monograph analyses the period of the year 2023 and the authors seek to capture major events and trends with implications for the security environment in individual sectors and further to identify implications for the defence policy and armed forces. Verification of the outputs was carried out within the framework of expert meetings with the participation of members of the Ministry of Defence of the Czech Republic, Army of the Czech Republic, and representatives of the community of security experts from the Czech Republic.
Global range extension of bioclimatic zone of Bruguiera hainesii C.G.Rogers 1919 (Rhizophoraceae)
Authors: Pham Mai-Phuong , Hoang Thi Thu Trang , Pham Van Dien , Pham Thanh Trang , Vu Dinh Duy
Published: February 2025

Bruguiera hainesii is a rare mangrove species with limited populations worldwide, but there is lack of detailed knowledge about its population size and distribution in Vietnam. Its regeneration capacity is notably low, raising concerns about its long-term survival. This study aims to model the bioclimatic niche of B. hainesii to identify potential ecological regions in Vietnam suitable for its conservation and survival under current and future climate scenarios. Occurrence data were collected from the global GBIF database and recent field surveys in Vietnam conducted during 2023–2024. The Maxent model was used to predict bioclimatic suitability, with projections extended to future climate scenarios using ACCESS-CM2 under SSP2-4.5 (medium-emission scenario) for 2080–2100. The study identified Vietnam as a highly suitable region for B. hainesii despite its small population size. Projections indicate a potential expansion of ideal habitats under future climate conditions, highlighting the species' adaptability. The findings provide valuable insights into the conservation of B. hainesii, emphasising the importance of preserving existing populations and managing suitable habitats to ensure the species' long-term survival and regeneration. This research also underscores the role of bioclimatic niche modelling in guiding conservation strategies for endangered mangroves.
Like a fish in (washed) water. The state, the oil refining industry and the greening of Etang-de-Berre (France), 1957-1994
Authors: Bécot Renaud
Published: February 2025

L’étang-de-Berre est l’un des principaux sites de raffinage du pétrole en France depuis l’entre-deux-guerres. L’expansion pétrolière a provoqué des conflits avec les pêcheurs dans les années cinquante et avec les syndicalistes dans les années soixante-dix. L’ambivalence de la relation à ce territoire doit se comprendre en reconstituant l’histoire des relations conflictuelles entre l’industrie pétrolière et la société civile organisée, en particulier depuis 1957, lorsqu’une loi nationale a prohibé la pêche et garanti l’usage prioritairement pétrolier de cet étang. Cet article éclaire la manière dont l’industrie pétrolière se repose sur l’Etat afin de protéger et de verdir son image, soulignant que la réglementation environnementale a donné aux compagnies la possibilité de laisser les administrations publiques assurer la communication sur la pollution.
Fossil Fuel Scarcity, Renewable Sources, and Alternative Futures in 1950s U.S. Energy Systems Discourse
Authors: Hall Randal L.
Published: February 2025

Cet article analyse les discussions des années 1950 aux États-Unis sur les pénuries imminentes de combustibles fossiles, en mettant l’accent sur Eugene Edmond Ayres Jr. et Charles Albert Scarlott, auteurs de Energy Sources—The Wealth of the World (1952). Insistant sur la conservation, l’efficacité et la conversion de diverses sources pour contribuer aux systèmes énergétiques, y compris les systèmes alimentaires, ils prirent en compte, avec d’autres comme Lewis G. Weeks et M. King Hubbert, les sables bitumineux, les schistes bitumineux, la tourbe, le charbon et l’uranium, ainsi que les vents, les marées et l’énergie solaire. À la fin des années 1950, ce cycle de discussions sur les pénuries de combustibles fossiles s’était terminé en raison de l’optimisme technologique et de la reconnaissance de l’abondance de l’approvisionnement mondial à moyen terme, malgré un courant divergent d’inquiétude latente. Ces exemples préfigurent les débats plus connus des années 1970 sur le pétrole et les énergies renouvelables.
La performance financière des PME familiales transmises : une analyse à partir de leurs caractéristiques opérationnelles et fondamentales
Authors: Sangué-Fotso Robert , Abbo Mohamadou
Published: February 2025

L’objectif de cet article est d’analyser les caractéristiques des PME familiales transmises qui améliorent la performance financière en faisant ressortir leurs spécificités. À partir d’une approche mixte séquentielle, une enquête qualitative auprès d’un échantillon de 5 cas PME et une enquête quantitative sur un échantillon de 68 PME familiales transmises ont été réalisées. Il ressort des analyses effectuées que la performance post-transmission mesurée à partir de la rentabilité économique et financière est tributaire de la combinaison des caractéristiques fondamentales à travers les Us et coutumes, la religion et les croyances et les caractéristiques opérationnelles par la planification, la nature et le contexte de survenance du transfert du pouvoir de gestion. Les résultats atteints confirment la nécessite d’hybridation par la combinaison des valeurs africaines et des méthodes occidentales afin de proposer une configuration de transfert managérial authentique au contexte camerounais.
Haut Potentiel Intellectuel et pratique sportive chez les jeunes en France : un engagement particulier ?
Authors: Menguy Nicolas
Published: February 2025

En l’état actuel des connaissances et du relatif consensus international, l’identification du Haut Potentiel Intellectuel (HPI) passe par la réalisation d’un bilan psychologique et la passation d’un test d’intelligence approuvé conduisant à l’obtention d’un score général de Quotient Intellectuel (QI) égal ou supérieur à 130, correspondant à 2,3 % de la population. Près de 370 000 jeunes de moins de 20 ans sont donc concernés en France. Principalement menées en psychologie, nombre d’études à ce sujet se sont cantonnées au domaine scolaire. Mais qu’en est-il de leur évolution dans l’univers extrascolaire, et plus précisément au regard de leur pratique physique et sportive ? Alors que les données récoltées à l’aide d’un questionnaire, renseigné par les parents de 513 enfants de moins de 20 ans identifiés à HPI, nous ont permis de dresser un état des lieux de l’univers physique et sportif de ces derniers, l’analyse discursive issue de 22 entretiens menés auprès de parents concernés est venue préciser, discuter et enrichir ces résultats statistiques. L’un des principaux apports de cette étude réside dans le fait que les enfants et adolescents identifiés à HPI, notamment les filles, sont très engagés dans la pratique physique et sportive, surtout lorsque celle-ci est individuelle.
The Social Security Fairness Act: Evaluating Potential Impact, Limitations, and Implications for Research, Policy, and Practice
Authors: Perez G. Adriana
Published: February 2025

The impact of laws and policies that involve social determinants of health (SDOH), particularly among older, retired populations, needs to be considered as a public health intervention. The Social Security Fairness Act was signed into law in 2025, as a new amendment to the Social Security Act first introduced in 1935. The Social Security Fairness Act ends two provisions that have reduced benefits for spouses, widows, and widowers and for public service workers, which include teachers, fire fighters, police officers, nurses, and others who are receiving pensions from state or local government. Specifically, this new bill involves economic stability, which is considered an important SDOH for older adults. The purpose of the current article is to evaluate policy changes through the Social Security Fairness Act, including potential impact and benefits, limitations or unintended consequences, and implications and recommendations for future research, policy, and practice. Findings will help guide gerontological nurses and interprofessional researchers, clinicians, and educators promoting healthy aging. [
Journal of Gerontological Nursing, 51
(2), 7–12.]
México bárbaro. Feminicidios y violencia institucional en el cine
Authors: González Galván Roque
Published: February 2025

México vive una creciente violencia generalizada a partir de los cárteles del narcotráfico y de la inoperancia y corrupción de los distintos gobiernos. Los feminicidios también se vienen incrementando desde hace años. Cada vez más cineastas, como Tatiana Huezo, reflejan estos procesos de violencia en contra de las mujeres y de sectores vulnerables.
Subjectivités amplifiées d’une caméra participante. Supa Layme de Fumito Fujikawa
Authors: Delgado Mónica
Published: February 2025

Cet article analyse le film péruvien Supa Layme (2020), de Fumito Fujikawa, dans son lien avec l’activation de la mémoire, le paysage et la subjectivité d’un visiteur sur les hauts de Puyca, une province désertique du département d’Arequipa, au Pérou. Le cinéaste joue son rôle médiateur par la vie partagée avec une famille jeune et complice, dont les noms de famille maternel et paternel donnent son titre au film.
Filmer de ses propres ailes à Crespo, Entre Ríos
Authors: Allouche Claire
Published: February 2025

Nous nous proposons d’étudier l’émergence d’un nouveau lieu de cinéma sur la carte de l’Argentine : Crespo, localité de l’Entre Ríos, capitale de l’aviculture et lieu de tournage privilégié d’un trio de cinéastes qui en sont originaires, Eduardo Crespo, Iván Fund et Maximiliano Schonfeld. Nous nous intéressons à la manière dont leur capital d’autochtonie, reposant sur leur condition de cinéastes-habitants, est favorable à des conditions de production légères et à l’origine d’une élaboration formelle singulière, dans la continuité de leur expérience de l’espace vécu et de la profonde compréhension des paysages filmés comme fruits matériels du travail de leur communauté.
Brésil, année 3000
Authors: Zgaib Iván
Published: February 2025

Cet article traite du road-movie dystopique Rodson ou (Onde o sol não tem dó) sorti sur les écrans brésiliens en 2020, et vise à penser comment l’artifice de l’image numérique est exploité pour composer d’autres expériences spatiales et sensorielles au regard du présent que vit le Brésil.
Speculative Rationality and Its Dialectic: Thinking (in) the Contemporary World
Authors: Nuzzo Angelica
Published: February 2025

This essay advocates for a form of dialectic-speculative rationality modeled on Hegel’s view of dialectic and speculation as the most adequate “method” to address the philosophical problem of understanding the complexities of today’s world.
Speculative conception of thought: Hegel on language
Authors: Vranešević Goran
Published: February 2025

The article deals with Hegel’s distinctive conceptualization of language, which takes a speculative form. Not only does language play a crucial role in understanding Hegel’s speculative philosophy, but it also provides a novel way of understanding the inner mechanics of thought formation and explication. While language does fulfil a common communicative purpose for Hegel, this is but of minor importance; Hegel rather emphasized the everyday use of language in all its speculative splendour. There is namely an ambiguity present in some of the most ordinary words, which often carry not just different meanings but opposite ones. This is not an error or imprecision in need of correction, but a constitutive feature of the speculative spirit of language. Moreover, this notable characteristic is closely linked to Hegel's insight that thoughts are first and foremost expressed through the medium of language.
La forma della proposizione speculativa tra scrittura filosofica e traduzione
Authors: Pieroni Silvia
Published: February 2025

Hegel’s claim on the unity of form and content founds the main normative criterion of philosophical exposition and thus of the «speculative proposition», which is in the Phenomenology of Spirit the own form of speculative thinking. This paper explains how the speculative proposition enacts the dialectical unity of form and content. My aim is to prove that the aesthetic or linguistic moment plays a constitutive role in the articulation of speculative thinking. To that end, I will examine the philosophical statement under the perspective of the writing practice. I will consider, first, the chiasmus of subject and predicate within the speculative proposition in the Phenomenology; second, the methodological role played by translation and metaphor in the Encyclopaedia; third, how these aspects reveal the rhetorical consistency of philosophy. In this way, I will describe a coherence in the development of Hegel’s notion of speculative thinking. Although the speculative proposition appears only in the Phenomenology, it remains in the mature system as a dispositive for the philosophical translation of the experience.
L’angelo triste di Wim Wenders. Innocenza, tempo, kairos
Authors: Colonnello Pio
Published: February 2025

Wim Wenders’ films offer not only emotions but are also a source of profound reflections on human existence, on the meaning of the change that breaks into the actuality of existence, on the privilege that mankind has to enjoy even the small pleasures of life. This essay deals with some central themes present in The Wings of Desire (Der Himmel über Berlin), with emphasis on the literary, conceptual and poietic references, which are a sort of “subtext”, a “secret plot” for the understanding of the film.
Chercher l’homme, découvrir la masculinité : une enquête dans le paysage des revues (histoire de l’éducation, histoire du genre et manhood studies)
Authors: Rogers Rebecca
Published: February 2025

L’histoire de l’éducation sous l’angle de la masculinité est arrivée bien après le développement d’études portant sur la fabrique de la féminité. Il s’agit dans cet article de comprendre l’arrivée de cette interrogation par une étude de la production scientifique dans les revues depuis presque trente ans. Dans un premier temps il sera question de travaux parus en français et en anglais dans quelques revues majeures d’histoire de l’éducation (Histoire de l’éducation, History of Education, History of Education Quarterly et Paedagogica Historica). Comme l’histoire du genre est l’une des matrices fortes de ces travaux, l’analyse se tourne par la suite vers des revues d’histoire du genre afin de dessiner la réception plus ou moins affirmée d’une approche qui prend pour objet les hommes et la construction de la masculinité. Certains objets, comme le sport, le voyage ou la figure de l’enseignant donnent lieu à des études où l’éducation à la masculinité est mise en exergue. Un dernier temps de l’enquête se penche sur des revues se revendiquant des boyhood et des manhood studies et la place qu’elles accordent à l’histoire. Dans ces revues interdisciplinaires, l’histoire de l’éducation est moins visible que des approches plus culturelles, mais cet espace de production scientifique donne néanmoins à voir l’intérêt heuristique des boyhood studies lorsqu’il s’agit de comprendre comment des valeurs ou un ethos masculin se construit différemment selon les périodes, les classes sociales et l’âge.
Étudier le développement professionnel d’enseignants accompagnés par des didacticiens au sein de dispositifs collaboratifs : regards croisés en didactique et en analyse de l’activité
Authors: Chesnais Aurélie , Constantin Céline , Leblanc Serge
Published: February 2025

Nous proposons de rendre compte d’une recherche menée conjointement par des chercheures en didactique et un spécialiste de l’analyse de l’activité sur deux dispositifs collaboratifs ayant fonctionné sur plusieurs années, dans lesquels des chercheures en didactique accompagnent des enseignants. La recherche porte sur le fonctionnement de l’accompagnement et les effets de ces dispositifs en termes de développement professionnel des enseignants. Nous proposons en particulier de croiser une analyse du point de vue didactique et du point de vue de l’activité via notamment des entretiens de remise en situation dynamique à partir de traces de l’activité. La recherche a permis d’identifier la nécessité d’un processus de problématisation conjointe et des traces de développement professionnel au sein du dispositif. Elle montre également l’intérêt de ce croisement de regards pour étudier ce type de dispositifs.