bluuebunny/crossref_metadata_2025 huggingface dataset:
CARACTERIZAÇÃO FÍSICA DA MICROBACIA HIDROGRÁFICA DO IGARAPÉ MANTEIGA, RIO CRESPO - RO
Authors: Dias Vinicios José , Rocha Célio Tessinari , Andrade Nara Luísa Reis de , Hurtado Fernanda Bay
Published: June 2024

Este trabalho visa realizar a caracterização de aspectos físicos e hidrológicos da microbacia do Igarapé Manteiga, e entender como essas características, associadas ao uso e cobertura da terra, poderiam afetar o abastecimento de água do Município de Rio Crespo - RO. Foram realizadas aplicações de técnicas de geoprocessamento, sobretudo o NDVI, além de levantamento de dados junto à concessionária de serviços de abastecimento de águas do município da aplicação de cálculos para estimativa do consumo do município e a capacidade do Igarapé Manteiga continuar a abastecê-lo no futuro. A bacia possui uma área de 141,6 km², com relevo caracterizado por ter maiores altitudes na porção sudeste, onde está localizada a nascente do curso principal, que possui cerca de 23,3 km de extensão, nascendo no maciço manteiga, com cerca de 239m de altitude, porção da suíte intrusiva Santa Clara, rumando em sentido noroeste, até atingir local composto por cobertura laterítica a 120 m de altitude, estando quase todo o conjunto na Depressão do Madeira-Ji-Paraná. Por meio da aplicação do NDVI, constatou-se que cerca de 73,66 % da área da bacia encontra-se com cobertura vegetal não condizente com a cobertura original, o que pode, associado ao relevo, afetar a estabilidade do solo em alguns locais. Também foi constatado que o fornecimento de água do município não é eficiente, devido a desperdício e baixo atendimento. Em que pese os resultados obtidos, em razão da baixa demanda, a Bacia do Igarapé Manteiga ainda tem sido capaz de suprir o atendimento à zona urbana do Município de Rio Crespo, em situações de normalidade hidrológica.
ESTRATÉGIA DE TRATAMENTO DIRETAMENTE OBSERVADO (DOTS) PARA TUBERCULOSE NO BRASIL: UM ESTUDO QUALITATIVO
Authors: RUSSONI BRUNO , TRINDADE Ana Angélica da
Published: June 2024

Nos últimos anos, a estratégia DOTS torna-se protagonista no monitoramento e cuidado às pessoas com Tuberculose na Atenção Primária à Saúde brasileira. Diante disso, procura-se avaliar os benefícios, limitações de tal estratégia, bem como as atribuições dos grupos sociais envolvidos através de um estudo qualitativo e descritivo pautado numa revisão integrativa. A partir da consulta às plataformas MEDLINE, LILACS, e SCIELO, com os descritores DECS "Tuberculose", "Brasil", e "Terapia Diretamente Observada", seleciona-se estudos baseados na aplicação de critérios de inclusão e de exclusão, seguida da categorização dos achados. Como resultados, destacaram-se na literatura consultada: i) em termos de benefícios, a contribuição do DOTS à reabilitação das pessoas, devido a fatores, como: maior adesão ao tratamento, maior satisfação com o cuidado recebido, boa aplicabilidade para grupos vulneráveis, e redução de desfechos desfavoráveis. ii) Já as limitações indicam o enfraquecimento da iniciativa DOTS na presença de disputas políticas, questões organizacionais e operacionais. iii) Quanto ao papel dos grupos sociais, o envolvimento dos famíliares, enfermeiros e agentes comunitários de saúde é indispensável. No Brasil, a estratégia DOTS é, então, considerada bem sucedida na produção do cuidado voltado para a Tuberculose por propiciar o vínculo profissional-usuário, integrar a atenção individualizada com a coletiva, bem como favorecer ações de educação em saúde.
BALNEABILIDADE DO BAIXO RIO TAPAJÓS, AMAZÔNIA, BRASIL.
Authors: Lemos Edvaldo Junior de Souza , Peleja José Reinaldo Pacheco , Goch Ynglea Georgina de Freitas , Lima Flávia Cristina Carvalho de , Bacelar Rívolo de Jesus
Published: June 2024

Na região Amazônica os estudos sobre condições de balneabilidade em praias de água doce ainda são insipientes. No estado do Pará, algumas ações de monitoramento tem sido iniciadas por órgãos ambientais na capital Belém e no município de Santarém, importante pólo turístico do oeste do estado. Desta forma, neste trabalho objetivou-se avaliar a dinâmica das condições de qualidade da água balnear. Para isso, amostraram-se ao longo da orla fluvial direita do rio Tapajós as seguintes praias: Muretá, Cajueiro (Alter do Chão), Ponta de Pedras, Pajuçara e Maracanã. Foram realizadas quatros campanhas de monitoramento em duas fases da hidrógrafa fluvial: águas baixas e águas altas. Os resultados demonstraram que as condições de qualidade da água para a balneabilidade estão em situação de conformidade própria, exceto a praia do Maracanã que apresentou condição imprópria nos anos de 2015 e 2018. A variação do regime fluvial do rio Tapajós não foi determinante no comprometimento das condições de balneabilidade. As taxas de precipitação se correlacionaram de forma discreta com as densidades de coliformes termotolerantes, mas não comprometeram a situação de conformidade e nem a capacidade de resiliência do rio, a qual se estabelece prontamente até 24 horas subsequentes aos últimos eventos de chuva.
ANÁLISE DA QUALIDADE DA ÁGUA DE POÇOS TUBULARES NA ZONA URBANA DEITAITUBA, PARÁ, BRASIL.
Authors: Aboim Everlana da Cunha , Baima Suede Fernanda Santos , Soares Handrei Matheus de Souza , Almeida Andressa Diniz Simões de , Pereira Marjana Gomes , Nascimento Wanderson da Silva
Published: June 2024

A importância dos recursos hídricos no planeta constitui um dos elementos mais relevantes e indispensável à sobrevivência do homem, que é a água. Com o crescimento acelerado da sociedade urbana, industrial e tecnológica, a escassez de água doce ficou comprometida. Dessa forma, a população das cidades buscou alternativas para adquirir esse bem através do uso de poços tubulares. Por este motivo, surgiu a necessidade de analisar a qualidade dessas fontes de água, que podem ser foco de doenças capazes de comprometer o bem-estar dos seus consumidores. O objetivo do estudo foi de analisar a qualidade da água de poços tubulares consumidas pela população da zona urbana do município de Itaituba, estado do Pará, onde foram selecionados 06 (seis) poços tubulares. Foram coletadas 01 (uma) amostra para análise físico-química e 01 (uma) amostra para análise microbiológica, totalizando, ao final, em 12 (doze) amostras, analisadas no laboratório de análises de água do VIGIÁGUA – Vigilância da Água de Itaituba, mediante o Manual Prático de Análise de Água da FUNASA, avaliando os parâmetros de cloreto, turbidez, coliformes totais e coliformes termotolerantes. Os resultados obtidos apresentaram dentro da normalidade, sendo que: na análise física, o nível de turbidez esteve dentro dos valores aceitáveis; na análise química, houve ausência de cloreto; e, na análise microbiológica, das 06 (seis) amostras, foram identificadas a presença de coliformes totais na amostra de ponto 1 e ponto 2 e, ausência de coliformes termotolerantes em todas as amostras. Concluiu-se que os resultados das análises físico-químicas e microbiológicas dos poços tubulares dispõem de uma água de qualidade e apropriada para o consumo da população itaitubense.
CARNE OVINA, QUALIDADE E COMÉRCIO: UMA REVISÃO
Authors: Lima André Amaral Santos , Muller Bruna de Lima , Oliveira Gabriel dos Reis de , Matos Ingrid Bibiano Queiroz , Mota Jamille Amarante , Rego Milena Dias , Barbosa Emanuela Nataly Ribeiro
Published: June 2024

A produção de carne ovina tem emergido como uma atividade de crescente relevância no cenário agropecuário global, destacando-se não apenas por seu valor nutritivo, mas também por sua significância econômica e cultural. A carne ovina apresenta características marcantes que dependem de pontos importantes como sabor, suculência, textura, maciez e aparência. Existem alguns pontos que estão relacionados a aceitação da carne tais como, força de cisalhamento, maciez, pH, capacidade de retenção de água, perda de peso na cocção e ácidos graxos concentrados. A qualidade envolve diversos fatores, que vão desde reações físicas e químicas que ocorrem na carne após o abate, a forma de manejo, genética e instalações. Assim, é fundamental a implantação de técnicas racionais de criação, visando maior produtividade e qualidade, para atender a um mercado consumidor mais exigente. Entretanto, o consumo per capita é de aproximadamente 500g por ano. apesar do crescimento gradativo da criação de ovinos e do grande potencial produtivo que o Brasil apresenta, a influência dessa atividade para o setor econômico do país ainda não alcançou contribuição significativa devido aos entraves. Esta revisão foi elaborada com o objetivo de examinar a relação entre a qualidade da carne ovina e seu impacto no comércio, destacando os principais fatores que influenciam a qualidade da carne e os obstáculos para a comercialização.
Article Review: Skin Diseases in Dromedary Camels
Authors: Gharban Hasanain A.J.
Published: June 2024

The dromedary camel (Camelus dromedarius) is a significant livestock species in several nations located in desert and semi-arid regions of Asia, Northern and Eastern Africa, South America, and the high highlands of the Andes. In Iraq, the FAO figures of 2014 indicate that there are around 65,000 camels, all of which belong to the species Camelus dromedarius and have a single hump. Camels are the primary source of sustenance for all Bedouin clans and villages in various ecological zones in Iraq. This dependence involves the usage of camel milk, meat, leather, and wool. Furthermore, camels have been used as beasts of burden, means of transportation, and mounts. Camels, typically grown in their native desert environment, experience significant stress due to the prolonged dry season. This stress makes them vulnerable to many illnesses and health issues. Historically, owing to little research on camel ailments, doctors believed that camels were immune to many disease-causing causes. Scientific evidence has shown that camels, like other livestock or maybe even more so, are vulnerable to the same disease-causing viruses that impact other animal species. Camels often suffer from illnesses that are challenging to manage because to their non-specific symptoms and similarity to diseases seen in other ruminant animals. Additionally, camels have some resistance to some infections. This research attempts to provide a concise description of the most frequently seen skin disorders in dromedary camels in Iraq.
Factors Influencing Smoking Habits Among Adolescents in Tegal Rejo Village, Medan Perjuangan District
Authors: Nurhayati Talitha Syafira , Aidha Zuhrina , Wasiyem Wasiyem
Published: June 2024

Smoking behavior among adolescents is a particular issue that requires serious attention. Adolescents tend to be more vulnerable to the influence of their surroundings, including peers and social media, which can affect their decisions regarding smoking. This study aims to explore the factors related to smoking behavior among adolescents in Indonesia. Using quantitative methods, univariate and bivariate analyses were conducted on data from 271 respondents. The findings indicate a significant relationship between individual knowledge about the dangers of smoking, individual attitudes toward smoking, social media exposure to content about the dangers of smoking, and the level of self-efficacy with smoking behavior among adolescents. These results support the importance of understanding and managing these factors in efforts to prevent and control smoking among adolescents. Strategies that include enhancing knowledge, supportive attitudes, managing social media exposure, and strengthening self-efficacy can be effective steps in reducing the prevalence of smoking behavior in the adolescent population. In this context, evidence-based approaches, such as those proposed by Lawrence Green's Theory of Behavior Change, can serve as a foundation for designing more effective interventions. Collaboration among various parties, including the government, educational institutions, and the general community, is necessary to create a supportive environment to change smoking behavior and improve adolescent health overall.
Skolyozlu Olgularda Queenax Antrenmanının Cobb Açısı ve Yaşam Kalitesine Etkisi
Authors: Doğan Ercan , Açak Doç. Dr. Mahmut , Akkurt Soner
Published: June 2024

Yapılan bu çalışma skolyozu bulunan bireylere uygulanan Queenax Antrenmanının Cobb Açısı ve Yaşam Kalitesi üzerine etkisini incelemek amacıyla yapılmıştır. Materyal Metot: Araştırmanın evreni Erciyes Üniversitesi Tıp Fakültesi Hastanesi Ortopedi ve Travmatoloji kliniğine başvuran kişiler oluştururken, örneklem grubunu ise yaş aralığı 13-18 olan ve skolyoz eğrilikleri 10o – 35o arasındaki kadın hastalar oluşturmuştur. Araştırmaya katılan katılımcıların cobb açılarının belirlenmesi için, radyografik muayene yöntemi olarak anterio-posteriorun skolyoz grafisinde cobb açısı ölçümü yöntemi ile belirlenmiştir. Ölçümler Erciyes Üniversitesi Tıp Fakültesi Hastanesindeki Ortopedi ve Travmatoloji bölümünün radyografi laboratuvarında yapılmıştır. Katılımcılar rastgele olarak egzersiz grubu (n: 18) ve kontrol grubu (n: 18) şeklinde belirlendi. Katılımcılara çalışmanın öncesinde ve çalışma tamamlandıktan SRS-22 yaşam kalitesi anketi uygulandı. Egzersiz grubuna dahil edilen katılımcılara 18 hafta boyunca (haftada 3 gün-60 dk) Queenax antrenmanı yaptırıldı. 4., 8. ve 12. haftalardan sonra uygulanan egzersizin tekrar-set sayıları artırıldı. Cobb açısı ölçümleri hem başlangıçta hem de 10. ve 18. hafta olmak üzere 3 defa yapıldı. Bulgular: Çalışmaya katılan egzersiz grubundaki katılımcıların cobb açılarının derecesinin çalışma sonunda sabit kaldığı veya biraz azaldığı belirlenmiştir. (p>0.05). Kontrol grubundaki gönüllülerin Cobb açılarının 18. hafta sonunda arttığı belirlenmiştir (p
Sacralization of Football: Example of Iglesia Maradonia
Authors: Albayrak Ali , Bilgin Önder , Karayel Salih Emre , Gülşen Batıkan Yunus Can
Published: June 2024

This study aims to explain the emergence of Iglesia Maradonia, Maradona’s role in this endeavor, and how they become sacred in this quest. In this study, which is based on qualitative paradigms, the method of choice is documentation. In this framework, firstly, the emergence of football and Maradona’s place in football’s history is examined. After that, the quest for Maradona’s sacralization and how he became a cult is observed, and symbols belonging to Iglesia Maradonia are ethnomethodologically analyzed and interpreted. Iglesia Maradonia, Establishe by Maradona fans, is a religious constitution that puts Maradona at its center. Maradona, who is thought to be one the saints of football due to his extraordinary football skills, showcases his charismatic personality not only within the field but also outside of it. When the aforementioned religious/sacred constitution’s character is observed, it could be considered a cult movement. However, when it is looked under the light of the objectivity principle of the social sciences, this religious constitution, being established more recently, seen in not only Argentina but different places in the world, and having Christianity-opposing beliefs and teachings, is more fit to be considered under the New Religious Movements. When the character of this religious constitution is observed, Maradona’s goal against England, called ‘the Hand of God,’ plays a prominent role in shaping the beliefs and practices. Another point brought to light in this study is that, in the post-modern era, individuals or groups can resume their relations with the sacred without the traditional religious constitutions.
Supportive Learning Environment and Assertive Classroom Management Strategies as a Contributing Factor of the Academic Resiliency of T.L.E. Students
Authors: Joy E. Dumagyo Clarie , P. Ponsades Oliver
Published: June 2024

This study investigated the effects of supportive learning settings and assertive classroom management tactics on students' academic resilience. Using a descriptive-correlational research methodology, 254 junior high school students from a public secondary school in the Division of Davao del Norte were chosen using stratified random sampling. Using three adopted questionnaires and statistical tools such as mean, Pearson r, and regression analysis, the study demonstrates a very high degree of supportive learning environment, with high levels of assertive classroom management strategies and academic resilience. Significant correlations were discovered between numerous components of supportive learning environments and assertive classroom management practices, which influenced students' academic resilience. The study emphasizes the critical role of supportive learning settings and assertive classroom management practices in developing academic resilience, particularly in technical livelihood education. Recommendations include developing targeted interventions based on strengths observed in supportive learning environments, providing professional development opportunities for educators, implementing specialized interventions targeting specific qualities associated with academic resilience, and fostering a culture of continuous review and development within educational institutions.
Personality Factors as Predictors of the Level of Personality Functioning in Adolescence: Examining the Influence of Birth Order, Financial Status, and Sex
Authors: Ghazi Sayegh Mona , Ahmad El – Nayal Mayssah
Published: June 2024

This study aimed at examining the correlation between personality factors measured by the HEXACO Model of Personality Structure - which defines the personality in terms of: Humility-Honesty H, Emotionality E, Extraversion X, Agreeableness A, Conscientiousness C, and Openness to experience O - and the level of personality functioning (LOPF). It also examines HEXACO’s predictability of LOPF in adolescence in terms of sex (male, female), birth order (eldest child, middle child, youngest child, and the only child) and financial levels (above average, on average, below average). The sample included 1450 students from both secondary schools and universities all over Lebanon. Participants responded to the HEXACO PI-R-60 scale of personality structure, and Level of Personality Functioning LOPF 2.0 that pinpoints to the degrees of dysfunctionality in both intrapersonal and interpersonal domains; participants also answered other demographic questions. Data were analyzed through SPSS 23 by calculating Pearson correlation coefficients, running ANOVA and post Hoc Hochberg GT2 and Dunett t tests to explore variance among subgroups. Independent T- tests were also utilized to determine sex differences. Multiple linear regression was utilized to determine the predictability of LOPF by HEXACO. Results show that HEXACO factors are inversely correlated to LOPF except for Emotionality; no significant differences in LOPF exist between males and females; on the financial level, differences in LOPF are found only between middle group and below average group, and in terms of birth order, between the only child and the middle child. It is also depicted that LOPF can be predicted by HEXACO factors in different ways. Implications of the study are discussed in the light of the related theories.
Prevalence of Metabolic Syndrome in India
Authors: RekaS Muthu , Vijayanchali S.S.
Published: June 2024

Metabolic Syndrome (MS) is increasing in India and other South Asian nations, resulting in increased CVD and T2DM-related mortality and morbidity. About one- third of urban South Asians have evidence of MS. MS has been linked to an elevated risk of chronic diseases, including type 2 diabetes mellitus (T2DM) and cardiovascular disease in adults (CVD), particularly in Asian Indians. The prevalence of the metabolic syndrome is increasing, with urbanization and sedentary lifestyles becoming risk factors. The metabolic syndrome is becoming more common in developed countries, including India. Increasing the prevalence of metabolic syndrome, such as cardiovascular disease, obesity, diabetes, and hypertension, which is contributing to an increase in mortality and sickness in developed nations, is currently a global public health concern. This study aimed to review the prevalence of metabolic syndrome (MS) in India.
An Awareness Study on Cardiac Injury during Fitness Exercises: A Study from Tamil Nadu, India
Authors: Anitha M. , Anusha R. , Christuraj P. Allwin , Keertheesvar S. , Anuraj P.B. , Yowesh R.
Published: June 2024

Regular exercise lowers the risk of coronary heart disease, but in vulnerable individuals, it can also temporarily and acutely raise the risk of acute myocardial infraction and sudden cardiac death. In addition to discussing potential cardio-vascular workout compilations, their pathological substrate, incidence, and measures to mitigate them, this scientific statement offers suggestions. This research was conducted at sree ramakrishna medical college of naturopathy and yogic sciences and hospital kulasekharam, Tamil Nadu, India. Males aged 25 to 40 are the subjects of this study. After outlining the goal of the study, verbal consent was obtained. Thirty respondents filled out this survey. The survey consists of thirty questions. The questionnaire's characteristics encompassed gastrointestinal disorders, heart and respiratory conditions, joint pains, addictions, and physical activity. Male volunteers in the study who were hesitant or uncooperative were not allowed to continue with the study. Our research indicates that people require greater education about the negative effects of supplements and the problems they might cause, as well as about eating a healthy diet, drinking enough water, and getting enough sleep. More advice is needed regarding cardiac episodes that occur while exercising. To improve the general health and well-being of fitness seekers, future healthcare initiatives should concentrate on these areas.
Synergizing for Students Success: A Collaborative Engagement of Parent-Teacher in Grade Four
Authors: C. Merto Marylyn
Published: June 2024

This qualitative phenomenological inquiry delved into the encounters, coping strategies, and educational reflections of eight elementary school teachers in Tibungco District as they synchronized parent-teacher collaborative engagement for student success. The identified themes in their experiences encompassed celebrated students’ achievement together, involved parents in school activities, and engaged in regular communication. Coping mechanisms involved building trust, listening and valuing perspectives, and celebrating achievements. Educational insights comprised enhance students support, shared responsibility, and holistic education. These findings underscore the significance of effective parent-teacher collaborations in influencing student performance and success. Additionally, exploring teachers' experiences not only enriches the understanding of contemporary teaching demands but also provides valuable insights for educators and educational institutions, potentially leading to enhancements in classroom management and collaborative strategies.
Peter's Trypanophobia and Hemophobia
Authors: Ghazi Sayegh Mona
Published: June 2024

Peter presented to the clinic with dreadful fear of needles: Trypanophobia and overwhelming fear of blood: Hemophobia. His case complicated his need for medication and interfered with his school performance. History of anxiety disorders made him vulnerable to this condition, and his overprotective mother perpetuated his fear unintentionally. He was successfully treated with cognitive behavioral therapy CBT.
Unveiling Victor Hugo through Critical Race Theory Feminist Lens: A Social Constructivist Approach
Authors: Caffarone Klausen Natalia C. Giordana
Published: June 2024

This study re-examines the life and works of Victor Hugo, one of the 19th century's most influential French writers, through the integrated lenses of Critical Race Theory (CRT) and feminist theory, employing a social constructivist approach. By analyzing Hugo's significant works, including "Les Misérables" and "The Hunchback of Notre Dame," this research explores how his narratives address the intersectionality of race, gender, and class. By critically examining characters such as Fantine, Cosette, and Esmeralda, as well as the depiction of marginalized groups, the study uncovers Hugo's critique of his time's social constructs and power dynamics. This analysis highlights Hugo's progressive empathy for the oppressed and discusses the contemporary relevance of his work in understanding and addressing ongoing social injustices. By situating Hugo's literary contributions within the frameworks of CRT and feminist theory, this research offers new insights into the enduring significance of his critique of systemic inequalities, emphasizing the importance of intersectional perspectives in literary studies.
The Relationship of Total Quality Management Practices and Project Performance with Risk Management as Mediator: A Study of East Coast Rail Link Project in Malaysia
Authors: Kim Bong Cheng , Wen Huey Kan , A/L Krishnan Anbalagan
Published: July 2024

The study’s main aim is to investigate the relationship between the influence of effective risk management as a mediator among the relationship of Total Quality Management (TQM) practices and project performance in the East Coast Rail Link (ECRL) project in Malaysia. The problem statement on the implementation and barriers of TQM practices with risk management as a mediator would affect the project performance in terms of cost, delay, safety issues, QAQC, and project sustainability. The Multivariate Analysis was performed using SPSS ver27 software. Results of hypotheses indicated that relationships between human resource management and service quality were insignificant while relationships between process management, technology, leadership, and strategic planning were significant to project performance. Furthermore, risk management as a mediator was found to influence the relationships. The results indicated that adopting relevant dimensions of the TQM practices can enhance the project performance in construction projects.
Antenna Design for Absolute Sky Measurements at Gigahertz Frequencies—a First Step toward Detecting CMB Spectral Distortions from Recombination
Authors: Sathish Keerthipriya , Sathyanarayana Rao Mayuri , Sarkar Debdeep
Published: June 2024

There exist inevitable deviations in the cosmic microwave background spectrum from that of a blackbody. The additive distortions from photons emitted over the epoch of recombination are one such deviation. We present a novel scalable broadband antenna design motivated by detecting these spectral distortions in the 2.5–4 GHz band. This antenna is capable of maintaining the spectral quality of the measured sky spectrum to 1 part in 103 over the full band and outperforms conventional broadband antennas by at least an order of magnitude. While this is not sufficient to make a direct detection of the cosmological recombination radiation, it meets the baseline design criteria for an experiment that can make an absolute measurement of the sky spectrum at the millikelvin level, thereby making it capable of improving foreground models to global signal detection experiments (including those from cosmic dawn and the epoch of reionization) and addressing the problem of the excess radio background at 3.3 GHz reported by the ARCADE2 experiment.
Slant, Fan, and Narrow: The Response of Stellar Streams to a Tilting Galactic Disk
Authors: Nibauer Jacob , Bonaca Ana , Lisanti Mariangela , Erkal Denis , Hastings Zoe
Published: June 2024

Stellar streams are sensitive tracers of the gravitational potential, which is typically assumed to be static in the inner Galaxy. However, massive mergers like Gaia-Sausage-Enceladus can impart torques on the stellar disk of the Milky Way that result in the disk tilting at rates of up to 10°–20° Gyr−1. Here, we demonstrate the effects of disk tilting on the morphology and kinematics of stellar streams. Through a series of numerical experiments, we find that streams with nearby apocenters (r
apo ≲ 20 kpc) are sensitive to disk tilting, with the primary effect being changes to the stream’s on-sky track and width. Interestingly, disk tilting can produce both more diffuse streams and more narrow streams, depending on the orbital inclination of the progenitor and the direction in which the disk is tilting. Our model of Pal 5's tidal tails for a tilting rate of 15° Gyr−1 is in excellent agreement with the observed stream’s track and width, and reproduces the extreme narrowing of the trailing tail. We also find that failure to account for a tilting disk can bias constraints on shape parameters of the Milky Way’s local dark matter distribution at the level of 5%–10%, with the direction of the bias changing for different streams. Disk tilting could therefore explain discrepancies in the Milky Way’s dark matter halo shape inferred using different streams.
High-precision Transition Energy Measurements of Neon-like Fe xvii Ions
Authors: Shah Chintan , Togawa Moto , Botz Marc , Danisch Jonas , Goes Joschka J. , Bernitt Sonja , Maxton Marleen , Köbnick Kai , Buck Jens , Seltmann Jörn , Hoesch Moritz , Gu Ming Feng , Porter F. Scott , Pfeifer Thomas , Leutenegger Maurice A. , Cheung Charles , Safronova Marianna S. , Crespo López-Urrutia José R.
Published: June 2024

We improve by a factor of 4–20 the energy accuracy of the strongest soft X-ray transitions of Fe xvii ions by resonantly exciting them in an electron beam ion trap with a monochromatic beam at the P04 beamline of the PETRA III synchrotron facility. By simultaneously tracking instantaneous photon-energy fluctuations with a high-resolution photoelectron spectrometer, we minimize systematic uncertainties down to 10–15 meV, or velocity equivalent ±∼5 km s−1 in their rest energies, substantially improving our knowledge of this key astrophysical ion. Our large-scale configuration-interaction computations include more than 4 million relativistic configurations and agree with the experiment at a level without precedent for a 10-electron system. Thereby, theoretical uncertainties for interelectronic correlations become far smaller than those of quantum electrodynamics (QED) corrections. The present QED benchmark strengthens our trust in future calculations of many other complex atomic ions of interest to astrophysics, plasma physics, and the development of optical clocks with highly charged ions.
Spectral Lags of 90 Swift Gamma-Ray Bursts and the Constraint on the Lorentz Invariance Violation
Authors: Liao Bin , Zou Yuan-Chuan , Lei Wei-Hua
Published: June 2024

The arrival times of photons with different energy could be different, even when they are emitted from the same source simultaneously. Such a spectral lag is a common property among high-energy astrophysics phenomena like gamma-ray bursts (GRBs). The potential violation of the Lorentz invariance caused by quantum fluctuations in background spacetime metrics could cause the spectral lag. In this paper, we try to make a constraint on Lorentz invariance violation (LIV) with multiple energy bands light curves of GRBs. With a sample of 90 Swift GRBs with redshifts, we calculate their spectral offsets from four fixed energy bands within their source frame. With help from the cross-correlation function and kernel smooth procedure, we extract improved spectral shifts. By using these more general spectral lags, we obtain an upper limit on LIV, equivalent to a lower limit on the quantum-gravitational energy scale of E
QG ≥ 2.2 × 1014GeV.
Statistical Study of the Sub-ion-scale Magnetic Holes in the Lunar Space Environment
Authors: Wei Jiayun , Wang Guoqiang
Published: June 2024

Sub-ion-scale magnetic holes play a significant role in electron transportation and energy dissipation. In the upstream region of the terrestrial bow shock, they are expected to originate from the upstream solar wind as well as the foreshock. The Moon can move into the solar wind; whether it can affect the observation of the sub-ion-scale magnetic holes is unclear. Here, we statistically investigate 268 sub-ion-scale magnetic holes in the lunar space environment based on observations of the Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon’s Interaction with the Sun mission. The median duration of these magnetic holes is ∼0.31 s, and the median size of their cross sections is ∼0.5 ρ
i or ∼38.9 ρ
e. We regard an isolated or a train of magnetic holes as an event; thus, these magnetic holes belong to 207 events. The data at X
SSE < 0 and |Y
SSE| < 2 R
M (lunar radii) account for ∼21.7% of all observed data, but ∼89.4% of the events are observed in this region, suggesting that they are more likely to occur in the lunar wake. Furthermore, their occurrence rates in the lunar wake are much larger in the region close to its boundary than in other wake regions. And the occurrence rates in the lunar wake near the boundary at X
SSE > −3 R
M are larger in the dawnside than that in the duskside. These observations suggest that the region in the lunar wake close to its boundary is a possible source of sub-ion-scale magnetic holes.
Multimode δ Sct stars from the Zwicky Transient Facility Survey
Authors: Jia Qi , Chen Xiaodian , Wang Shu , Deng Licai , Luo Yangping , Jiang Qingquan
Published: June 2024

We obtain the largest catalog of multimode δ Sct stars in the northern sky to date using the Zwicky Transient Facility (ZTF) Data Release 20. The catalog includes 2254 objects, of which 2181 are new to our study. Among these multimode δ Sct stars, 2142 objects are double-mode δ Sct, while 109 objects are triple-mode δ Sct and three are quadruple-mode δ Sct. By analyzing the light curves in the r and g bands of the ZTF, we determine the basic parameters of multimode δ Sct stars, including the periods and amplitudes. Periods are checked by comparison with the Optical Gravitational Lensing Experiment catalog of double-mode δ Sct stars. On the Petersen diagram, multimode δ Sct stars form six sequences. We find that in Galactic coordinates, the periods of 1O/F double-mode δ Sct stars at high latitudes are shorter than those of 1O/F double-mode δ Sct stars in the disk, due to metallicity variations. In the future, our catalog can be used to establish the period–luminosity relation and the period–metallicity relation of double-mode δ Sct stars, and to study the Galactic structure.
Distribution of the genus Platycerus Geoffroy (Coleoptera, Lucanidae) in Italy
Authors: Scaccini Davide , Bartolozzi Luca , Zilioli Michele , Di Giulio Andrea , Ruzzier Enrico
Published: June 2024

Stag beetles are saproxylic species that are associated with deadwood in the larval stage and play an important role in forest ecosystem dynamics. In Italy, Platycerus caprea and Platycerus caraboides are two small, elusive stag beetle species, whose known distribution is often limited or referring to old records.

The present contribution increases the knowledge on the Italian distribution of P. caprea and P. caraboides, adding 70% more sites when compared to previously published records. Ecological traits, especially related to the altitude-elevation distribution in Italy, are also described for these saproxylic beetles.
Dispersal capacity as assessed by distance-decay relationships is lower for aquatic shredder insects than aquatic non-shredder insects in a Neotropical river network
Authors: García Pavel , Hall Jr Robert O.
Published: June 2024

Aquatic shredder insect diversity declines latitudinally toward the equator, contrary to the general latitudinal biodiversity gradient. Shredder diversity along tropical elevational gradients mimics this shredder latitudinal pattern. One of the hypotheses proposed to explain this pattern of diversity is that dispersal capacity drives variation in shredder assemblages given their low dispersal capacity in tropical streams. Additionally, tropical shredders probably have lower dispersal capacity than the rest of tropical aquatic insects, which have lower dispersal capacities than their counterparts in temperate areas. We tested this hypothesis in an elevational gradient of more than 2000 m in 16 reaches of streams distributed in the Usumacinta, Cahabon, and Polochic river watersheds. We quantitatively sampled aquatic insects and measured 12 environmental variables. We found a regional pool of 118 taxa, with 13 taxa classified as shredders, and 2 taxa of predator-shredders. Contrary to expectations, shredder rarefied richness decreased with increasing elevation, which suggests that dispersal capacity did not change with elevation. Assemblage similarity decreased with increasing distance between reaches due to low capacity to fly long distances. This relationship had a smaller slope when using the shortest spatial distances between pairs of reaches due to potential lateral scatter by flying adults. In sum, the results support the hypothesis that dispersal capacity drove aquatic shredder assemblage structure in these 16 tropical streams.
Trachemys in Mexico and beyond: Beautiful turtles, taxonomic nightmare, and a mitochondrial poltergeist (Testudines: Emydidae)
Authors: Fritz Uwe , Herrmann Hans-Werner , Rosen Philip C. , Auer Markus , Vargas-Ramírez Mario , Kehlmaier Christian
Published: June 2024

Abstract

Trachemys is a speciose genus of freshwater turtles distributed from the Great Lakes in North America across the southeastern USA, Mexico and Central America to the Rio de la Plata in South America, with up to 13 continental American species and 11 additional subspecies. Another four species with three additional subspecies occur on the West Indies. In the present study, we examine all continental Trachemys taxa except for Trachemys hartwegi using mitochondrial and nuclear DNA sequences (3221 and 3396 bp, respectively) representing four mitochondrial genes and five nuclear loci. We also include representatives of all four West Indian species and discuss our results in the light of putative species-diagnostic traits in coloration and pattern. We provide evidence that one Mexican species, T. nebulosa, has captured a deeply divergent foreign mitochondrial genome that renders the mitochondrial phylogeny of Trachemys paraphyletic. Using nuclear markers, Trachemys including T. nebulosa represents a well-supported monophylum. Besides the mitochondrial lineage of T. nebulosa, there are six additional mitochondrial Trachemys lineages: (1) T. venusta, (2) T. ornata + T. yaquia, (3) T. grayi, (4) T. dorbigni + T. medemi, (5) T. gaigeae + T. scripta, and (6) West Indian Trachemys. These six mitochondrial lineages constitute a well-supported clade. Each mitochondrial Trachemys lineage is corroborated by our nuclear markers. For T. gaigeae another mitochondrial capture event is likely because its mitochondrial genome is sister to T. scripta, although T. gaigeae is deeply divergent in nuclear markers and resembles Mexican, Central and South American Trachemys species in morphology, sexual dimorphism and courtship behavior. The two subspecies of T. nebulosa and many Mexican and Central American subspecies of T. venusta are not clearly distinct in our studied genetic markers. Also, the putatively diagnostic coloration and pattern traits of the T. venusta subspecies are more variable than previously reported, challenging their validity. Our analyses fail to identify T. taylori as a lineage distinct from T. venusta and we propose to assign it as a subspecies to the latter species (Trachemys venusta taylorinov. comb.).
A two-phase Stefan problem with power-type temperature-dependent thermal conductivity. Existence of a solution by two fixed points and numerical results
Authors: Bollati Julieta , Natale María F. , Semitiel José A. , Tarzia Domingo A.
Published: July 2024

A one-dimensional two-phase Stefan problem for the melting of a semi-infinite material with a power-type temperature-dependent thermal conductivity was considered. The assumption of taking thermal parameters as functions of temperature found its basis in physical and industries applications, allowing for a more precise and realistic description of phase change processes. By imposing a Dirichlet condition at the fixed face, a theoretical and approximate study was developed. Through a similarity transformation, an equivalent ordinary differential problem was obtained from which an integral problem was deduced. The existence of at least one analytical solution was guaranteed by using the Banach fixed point theorem. Due the unavailability of an analytical solution, a heat balance integral method was applied, assuming a quadratic temperature profile in space, to simulate temperature variations and the location of the interface during the melting process. For constant thermal conductivity, results can be compared with the exact solution available in the literature to check the accuracy of the approximate method.
Fractional integral approach on nonlinear fractal function and its application
Authors: Kavitha C. , Gowrisankar A.
Published: June 2024

The shape and dimension of the fractal function have been significantly influenced by the scaling factor. This paper investigated the fractional integral of the nonlinear fractal interpolation function corresponding to the iterated function systems employed by Rakotch contraction. We demonstrated how the scaling factors affect the flexibility of fractal functions and their different fractional orders of the Riemann fractional integral using certain numerical examples. The potentiality application of Rakotch contraction of fractal function theory was elucidated based on a comparative analysis of the irregularity relaxation process. Moreover, a reconstitution of epidemic curves from the perspective of a nonlinear fractal interpolation function was presented, and a comparison between the graphs of linear and nonlinear fractal functions was discussed.
Feeling and Playing the News: Conceptualizing Advances in Immersive and Gamified Journalism
Authors: Dowling David O.
Published: July 2024

Abstract: This study examines journalistic principles, user experience, and representation of marginalized subjects in industry-leading immersive and gamified digital journalism. Through critical analysis of technology, industry, and culture, findings indicate a wide range of interactive and immersive formats leveraging game mechanics and aesthetics can enhance the core democratizing function of journalism to expose policy, power, ideology, and self-interest which is otherwise less apparent in traditional news stories. The future viability of interactives and news experiences is mitigated by financial, technological, and ethical challenges facing journalistic production practice with these emerging media tools and platforms. Gamified and immersive media variously meet these challenges, in some cases extending and advancing certain core principles of journalism, particularly advocacy on behalf of marginalized and oppressed groups.
Écrire la culture : histoire et perspectives du journalisme culturel
Authors: Alexis Lucie , Sciullo Flore Di
Published: July 2024

Résumé : Critique culturelle, prescription, recommandation, guide, promotion, intermédiation, etc., le journalisme culturel charrie dans son sillage un grand nombre de notions, certes semblables, mais qui impliquent des approches et des usages différenciés. Reste alors à les identifier, les répertorier, les analyser. Il s'agit d'examiner spécifiquement les pratiques éditoriales de ce type de journalisme, dans les entreprises médiatiques et les institutions culturelles. Où se situe sa spécificité, d’un point de vue discursif, sémantique, morphologique ? Dans un contexte de transition numérique et de facilitation des prises de parole amateures, comment s’assume et se transforme la critique culturelle ? L’engagement et l’implication du critique dans les arènes publiques constituent-ils un vecteur de pérennisation de son utilité en tant que prescripteur ? C’est à ces quelques questions que ce dossier, comme le texte qui l’introduit, tente de répondre, dans une perspective interdisciplinaire et transnationale, en identifiant plusieurs axes de réflexion : les effets de légitimation du journalisme culturel pour des « niches » dans les productions culturelles, les rapprochements voire les collusions entre journalisme culturel et productions institutionnelles, enfin la politisation du journalisme culturel et son entrelacement avec la médiatisation de conflits internationaux.
La passion comme convention de travail : les magazines français consacrés au cinéma fantastique
Authors: Mazel Quentin
Published: July 2024

Résumé : Les magazines français entièrement consacrés au cinéma fantastique apparaissent au tournant des années 1980 dans le sillage de nombreux fanzines. Les personnes qui animent ces publications appréhendent leur travail à travers le prisme de la passion. Cette contribution interroge la manière dont le contexte de professionnalisation et de développement de ces publications a conduit à l’expression d’une convention de travail associée à la passion. Il étudie la manière dont des critiques professionnels sont traversés par des logiques propres au milieu amateur. Il décrit le contexte d’apparition de cette presse spécialisée, les propriétés sociales et les relations qui unissent les journalistes de ce segment, pour ensuite analyser la manière dont la « passion » encadre la distribution, l’organisation et la réalisation du travail.
Le nouveau visage médiatique des organisations culturelles : le cas de We are Europe
Authors: Jutant Camille
Published: July 2024

Résumé : À partir du cas d’étude du site internet We Are Europe, fruit d’un partenariat entre des festivals de musiques électroniques, cet article étudie un récent mouvement dans le champ culturel : la mise en ligne et l’animation, par les structures artistiques, de « médias ». L’objectif est de comprendre si le dispositif We Are Europe est une stratégie de promotion des acteurs culturels ou une forme émergente de journalisme culturel. L’analyse sémiotique du site montre que des formats éditoriaux variés (l’archivage, le reportage) et des logiques énonciatives plurielles s’enchâssent au service d’un « médiactivisme » faisant la promotion d’une communauté diversifiée de locuteurs et d’un traitement d’enjeux à la fois culturels et politiques à l’échelle européenne.
Le tournant éducatif et la (dé)politisation du journalisme culturel en Russie
Authors: Vokuev Nikolai
Published: July 2024

Résumé : L’article traite des aspects politiques des changements dans le journalisme culturel en Russie dans les années 2010 et au début des années 2020. Il se concentre sur l’émergence de médias culturels à tendance éducative (tournant éducatif) dans le contexte de la réaction politique et de la monopolisation de l’information, de la culture et de la production de connaissances par l’État russe commencé durant le troisième mandat de Vladimir Poutine. Trois périodes de dynamique politique dans le journalisme culturel sont identifiées : la pénétration de sujets politiques dans les médias culturels pendant les manifestations anti-Poutine de 2011-2012 (politisation du culturel), le déplacement ultérieur des controverses politiques dans l’espace du discours culturel (culturalisation du politique) et l’émergence de nouveaux médias décoloniaux dans le contexte de la guerre en Ukraine (repolitisation du culturel). La recherche est fondée sur des entretiens avec des éditeurs des médias culturels à vocation éducative.