bluuebunny/crossref_metadata_2025_split huggingface dataset:
The possibility of increasing the strength of the ice cover by reinforcing it
Authors: Козин В.М. 
Published: June 2022

В работе отмечается, что слабая развитость дорожной сети северных территорий нашей страны приводит к необходимости в зимний период для доставки грузов использовать ледяной покров в качестве: автозимников; ледяных переправ; грузонесущих платформ; а иногда и взлетно-посадочных полос для самолетов. На основании приведенных в работе опытов негативного использования ледяного покрова для этих целей и обзора известных способов упрочнения льда показана актуальность рассмотренной в работе задачи - увеличения прочности ледяного покрова путем его армирования стальной арматурой и перспективность такой технологии. Приведены результаты экспериментов, выполненных на специально изготовленном испытательном стенде, по нагружению поперечными нагрузками ледяных балок с различными степенями их армирования стальной арматурой. На их основании показана возможность существенного увеличения прочности ледяного покрова путем такого армирования по сравнению с известными технологиями. Сделано заключение, что полученная на основании этих исследований зависимость разрушающей нагрузки от степени армирования льда указывает на целесообразность дальнейших исследований в этом направлении. В работе также приведены разработанные автором на уровне изобретений способы армирования ледяного покрова. Отмечается их простота и экологичность благодаря несложности внедрения в лед и извлечению стальной арматуры из ледяного покрова (после окончания срока эксплуатации ледяной переправы) путем ее нагрева электрическим током.
The paper notes that the weak development of the road network of the northern territories of our country leads to the need in winter to use the ice cover for the delivery of goods as: winter trucks; ice crossings; cargo-carrying platforms; and sometimes runways for aircraft. Based on the experiments of the negative use of the ice cover for these purposes and a review of the known methods of ice hardening, the relevance of the problem considered in the work - increasing the strength of the ice cover by reinforcing it with steel reinforcement and the prospects of such a technology are shown. The results of experiments performed on a specially manufactured test bench on loading ice beams with various degrees of reinforcement with steel reinforcement with transverse loads are presented. On their basis, the possibility of a significant increase in the strength of the ice cover by such reinforcement in comparison with known technologies is shown.
Probability estimation of ice encounter in the Tatar Strait on the route De-Kastri - the ice edge
Authors: Зарубина Д.В. , Пищальник В.М. , Романюк В.А. 
Published: June 2022

В статье выполнена оценка вероятности встречи со льдом судов, следующих из порта Де-Кастри в страны Юго-Восточной Азии по двум маршрутам, которые условно определены как Западный и Восточный. Статистические характеристики вероятности встречи со льдом рассчитаны на основе обработки данных спутниковых наблюдений за период стандартной климатической нормы 1991-2020 гг. Установлено, что при следовании судов по Западному маршруту протяженность пути с вероятностью встречи со льдом более 50% и наиболее сложными ледовыми условиями (сплоченность 9-10 балов, торосистость 2 балла, толщина льда до 50 см) в период максимального развития ледяного покрова (февраль-март) составляет ~ 390 морских миль, что на ~50 морских миль больше, чем при следовании судов по Восточному маршруту.
In this report we estimate the probability of ice encounter for ships traveling from the port of De-Kastri to the countries of Southeast Asia along two routes. Those routes were identified as the Western route and the Eastern route. The statistical characteristics of ice encounter probability were calculated based on the processing of 30-year observation series during the period of the standard climatic normal of 1991-2020. As a result of data analysis, we established that during the period of ice extent maximum development, that is February and March, the length of Western route came to approximately 207 nautical miles. Not only that was 20 miles longer compared to the Eastern one, but the route also had some quite harsh characteristics. Those included not only ice encounter probability of more than 50%, but also some of the most challening ice conditions, such as ice concentration of 9 to 10 points, hummocking of 2 points and ice thickness of up to 50 cm.
competencia en alimentación en los libros de texto de educación secundaria
Authors: Luciañez Sánchez Gema , Biedma Garcia Laura , Solé-Llussà Anna , Valls Bautista Cristina 
Published: June 2022

Se presenta un análisis de cinco libros de texto de Biología y Geología de la Educación Secundaria Obligatoria. Por un lado, se han revisado los contenidos conceptuales y, por otro, el tipo de actividades planteadas. Los resultados muestran que en ningún libro aparece el término ultraprocesado. Mientras las actividades que se presentan son fundamentalmente de recopilación y comprensión. Ningún libro plantea actividades experimentales ni que fomenten el desarrollo de la competencia en alimentación. Sugerimos incorporar el término ultraprocesado, profundizando en el proceso de obtención, composición y las consecuencias sobre la salud y plantear actividades que potencien el desarrollo de dicha competencia.
Spor Yaralanmalarının Psikolojik Etkilerinin Değerlendirilmesi
Authors: AYDOĞAN Zeynep , KERKEZ Fatma İlker , CAN Seray , MANAV Gülay 
Published: June 2022

Amaç: Spor yaralanmaları sporcunun yalnızca fiziksel sağlık ve bütünlüğünü olumsuz etkilemekle kalmayıp aynı zamanda psikolojik durumunu da olumsuz etkilediğinden önemle üzerinde durulması gereken bir konudur. Literatürde spor yaralanması yaşayan sporcuların yoğunlukla öfke, depresyon, kaygı, özgüven eksikliği ve yeniden yaralanma korkusu yaşadıklarına dair bulgular mevcuttur. Sporcunun, yaralanma sonrası tedavi sürecindeki deneyimlerinin onun spora yeniden dönüşünü ve performansını da etkileyebileceği düşünülmektedir. Bu nedenle, araştırmanın amacı spor yaralanması yaşayan sporcuların tedavileri devam ederken, süreci nasıl deneyimlediğini ve psikolojik durumlarını derinlemesine incelemektir.
Yöntem: Bu çalışmada nitel araştırma yöntemlerinden fenomenolojik (olgubilim) desenin bir bölümü olan doküman analizi incelemesi kullanılmıştır. Çalışmanın örneklemini kolay ulaşılabilir durum örneklemesi ile belirlenen 2021-2022 eğitim öğretim yılında bir devlet Üniversitesi öğrencisi olup ciddi spor yaralanması yaşayan ve tedavisi devam eden 10 sporcu oluşturmaktadır. Sporcuların yaralanma sonrası tedavi sürecindeki yaşantılarını yorumlamak amacıyla kendileri tarafından kayıt altına alınan günlüklerin çözümlemesinden yararlanılmıştır. Günlüklerin çözümlenmesinde tümevarımsal doküman analizi kullanılmıştır.
Bulgular: Yapılan doküman analizi sonucunda ciddi spor yaralanması yaşayan sporcuların deneyimlerinden suçlama, sabırsızlanma, sakatlığı ciddi algılama, performansın etkileneceği korkusu, antrenmana dönme baskısı ve benliğe etki olarak altı temaya ulaşılmıştır.
Sonuç: Çalışma sonuçları ciddi spor yaralanması yaşayan sporcuların tekrar aktif spora dönebilmeleri için sadece tıbbi tedavinin yeterli olmadığını mutlaka psikolojik destek de alınması gerektiğini ortaya koymuştur. Bu noktada ciddi spor yaralanması yaşayan tıbbi tedavi sürecindeki sporcuların antrenörleri, sporcu arkadaşları ve aileleri tarafından çalışmamızda elde edilen temalar dikkate alınarak desteklenmesi yanında psikolojik destek almaları yönünde cesaretlendirilmeleri de önerilmektedir.
Atmospheric Characterization of Hot Jupiter CoRoT-1 b Using the Wide Field Camera 3 on the Hubble Space Telescope
Authors: Glidic Kayli , Schlawin Everett , Wiser Lindsey , Zhou Yifan , Deming Drake , Line Michael 
Published: June 2022

Abstract
Exoplanet CoRoT-1 b is intriguing because we predict it to be a transitional planet between hot Jupiters (equilibrium temperatures ∼1500 K) and ultrahot Jupiters (equilibrium temperatures >2000 K). In 2012, observations of CoRoT-1 b included one primary transit and three secondary eclipses with the Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) combined with the G141 grism (1.1–1.7 μm) in stare mode. We aimed to further investigate CoRoT-1 b through its secondary eclipses, producing spectrophotometric light curves corrected for charge trapping, also known as the ramp effect in time-series observations with the WFC3. We found that, when correcting for the ramp effect and using the typically discarded first orbit, we are better capable of constraining and optimizing the emission and transmission spectra. We did a grid retrieval in this transitional temperature regime and found the spectra for CoRoT-1 b to be featureless and to agree with an inverted temperature–pressure (T–P) profile. We note, however, that the contribution function for the WFC3 indicates pressures probed near 10−3 to 100 bar, which correspond to a nearly isothermal region in our T–P profile, thereby indicating that the inversion at high altitude is model-dependent. Despite no distinct features, the analysis done on CoRoT-1 b paves the way to high-precision results with stare mode spectroscopy. As a new generation of observations from the James Webb Space Telescope (JWST) approaches, CoRoT-1 b might be an interesting follow-up target because the time-series spectroscopic modes of JWST’s NIRSpec, MIRI, and NIRCam instruments will be analogous to HST’s stare mode.
Llamaradas Estelares: Modeling the Morphology of White-light Flares
Authors: Mendoza Guadalupe Tovar , Davenport James R. A. , Agol Eric , Jackman James A. G. , Hawley Suzanne L. 
Published: June 2022

Abstract
Stellar variability is a limiting factor for planet detection and characterization, particularly around active M-type stars. Here we revisit one of the most active stars from the Kepler mission, the M4 star GJ 1243, and use a sample of 414 flare events from 11 months of 1-minute cadence light curves to study the empirical morphology of white-light stellar flares. We use a Gaussian process detrending technique to account for the underlying starspots. We present an improved analytic, continuous flare template that is generated by stacking the flares onto a scaled time and amplitude and uses a Markov Chain Monte Carlo analysis to fit the model. Our model is defined using classical flare events but can also be used to model complex, multipeaked flare events. We demonstrate the utility of our model using TESS data at the 10-minute, 2-minute, and 20 s cadence modes. Our new flare model code is made publicly available on GitHub.
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https://github.com/lupitatovar/Llamaradas-Estelares
A New Method for Direct Measurement of Isotopologue Ratios in Protoplanetary Disks: A Case Study of the 12CO/13CO Ratio in the TW Hya Disk
Authors: Yoshida Tomohiro C. , Nomura Hideko , Furuya Kenji , Tsukagoshi Takashi , Lee Seokho 
Published: June 2022

Abstract
Planetary systems are thought to be born in protoplanetary disks. Isotope ratios are a powerful tool for investigating the material origin and evolution from molecular clouds to planetary systems via protoplanetary disks. However, it is challenging to measure the isotope (isotopologue) ratios, especially in protoplanetary disks, because the emission lines of major species are saturated. We developed a new method to overcome these challenges by using optically thin line wings induced by thermal broadening. As a first application of the method, we analyzed two carbon monoxide isotopologue lines, 12CO 3–2 and 13CO 3–2, from archival observations of a protoplanetary disk around TW Hya with the Atacama Large Millimeter/submillimeter Array. The 12CO/13CO ratio was estimated to be 21 ± 5 at disk radii of 70–110 au, which is significantly smaller than the value observed in the local interstellar medium, ∼69. It implies that an isotope exchange reaction occurs in a low-temperature environment with C/O > 1. In contrast, it is suggested that 12CO/13CO is higher than ∼84 in the outer disk (r > 130 au), which can be explained by the difference in the binding energy of the isotopologues on dust grains and the CO gas depletion processes. Our results imply that the gas-phase 12CO/13CO can vary by a factor of >4 even inside a protoplanetary disk and therefore can be used to trace material evolution in disks.
Imagination, education for the future and democratic culture: Educational policies in the Iberian Peninsula
Authors: Casadellà Marina , Massip-Sabater Mariona , González-Monfort Neus , Dias-Gomes Alfredo , Barroso-Hortas Maria-João 
Published: June 2022

In a historical moment, where the future is considered a threat, it seems highly relevant to teach the ability to imagine desirable futures. In line with this, Education for the Future (EF), from the Anglo-Saxon tradition, represents a reference to give a response to negative images about the idea of the future. On the other hand, the competences for democratic culture defined by the Council of Europe provide the basis for the elaboration of a theoretical framework that includes the imagination of democratic and sustainable futures as one of its main conceptual axes. Given this theoretical context, this study analyses official documents of public policies carried out in the Iberian context, to examine the treatment of the idea of future in education systems. Specifically, three levels of public policies have been studied: state educational laws, primary education curricula and institutional teacher training policies. The public policies have been analysed using the normative method of content analysis, with a syntactic sampling strategy, calculating the absolute and relative frequency of the units of analysis. Results show that there are few references to the construction of the concept of the future in public policies and suggest that the opportunity to educate others on the imagination of desirable futures may be being wasted.En un momento histórico en el que el futuro se concibe como una amenaza, parece altamente relevante educar en la capacidad de imaginar futuros deseables. En esta línea, la Educación para el Futuro (EpF), de tradición anglosajona, representa una referencia de trabajo para responder a las imágenes negativas sobre la idea del provenir. Por otro lado, las competencias de cultura democrática definidas por el Consejo de Europa dan pie a la elaboración de un marco teórico que incluye la imaginación de futuros democráticos y sostenibles como uno de sus principales ejes conceptuales. Dada esta interjección teórica, el presente estudio analiza documentos oficiales de políticas públicas llevadas a cabo en ámbito ibérico, para examinar el tratamiento de la idea de futuro en los sistemas educativos. Concretamente, se han estudiado políticas públicas a tres niveles: leyes educativas estatales, currículos de Educación Primaria y políticas institucionales de formación docente, para indagar cuál es la presencia del eje conceptual sobre la imaginación de futuros en estos documentos. Las políticas públicas han sido analizadas mediante el método normativo de análisis de contenido, con una estrategia de muestreo sintáctico, calculando la frecuencia absoluta y relativa de unidades de análisis. Los resultados muestran que hay escasas referencias a la construcción del concepto de futuro en las políticas públicas, y dan a entender que se puede estar desaprovechando la oportunidad de educar para la imaginación de futuros deseables.
Sortir du campement. Entrer dans le village-monde : État des lieux et perspectives de l’Afrique au XXI e siècle
Authors: Rossatanga-Rignault Guy 
Published: June 2022

La présente contribution vise à rendre compte des réalités sociopolitiques de l’Afrique à partir du paradigme du « campement-comptoir » qui montre une façon particulière d’être en soi et au monde faite, entre autres, d’extraversion, de provisoire qui dure et de haine du droit. Après avoir défini les contours du « campement-comptoir », on en fournira quelques illustrations, à partir du vécu et des postures des élites scientifiques et politiques africaines qui n’apparaissent trop souvent que sous la figure de gérants de « campements-comptoirs » postcoloniaux dont ils peinent à sortir, même si de nouvelles perspectives géopolitiques peuvent en faciliter la sortie.
Urinary Tissue Inhibitor of Metalloproteinase-2 and Insulin-Like Growth Factor-Binding Protein 7 Enhanced Risk Prediction for Initiation of Renal Replacement Therapy in Postoperative Patients with Acute Kidney Injury: A Prospective Cohort Study
Authors: Jia Huimiao , Zheng Yue , Huang Lifeng , Li Wenxiong 
Published: June 2022

Abstract

Introduction:
The current study is to identify the performance of urinary tissue inhibitors of metalloproteinase-2 (TIMP-2) and insulin-like growth factor-binding protein 7 (IGFBP7) for predicting renal replacement therapy (RRT) initiation and mortality in postoperative acute kidney injury (AKI) patients.

Methods:
Postoperative AKI patients were prospectively and consecutively enrolled. The biomarkers of urinary TIMP-2 and IGFBP7 were detected at the time AKI diagnosed (day 0) and 24 h later (day 1). The primary endpoint was the initiation of RRT, and the secondary endpoint was 30-day mortality. The receiver operating characteristic (ROC) curve was used to assess the performance of biomarkers for the prediction of RRT requirement.

Results:
There were 220 AKI patients enrolled in this study. Among the 220 patients, 33 (15.0%) initiated RRT during intensive care units period. Urinary (TIMP-2) × (IGFBP7), TIMP-2 and IGFBP7 on day 1 had fair performance for predict RRT initiation, the predictive area under the ROC curve (AUC) were 0.792 (0.732, 0.843), 0.784 (0.724, 0.837), and 0.770 (0.709, 0.824), respectively, with no significant difference. When they combined with clinically independent risk factors (nonrenal sequential organ failure assessment score, duration of surgery procedure, and serum creatinine at the time of AKI diagnosed) to construct predictive models for predicting RRT. The AUCs were greatly improved to be good. The best AUC was achieved by TIMP-2, which was 0.866 (0.814, 0.908). All of the biomarkers performed poor predictive values for predicting 30-day mortality.

Conclusion:
Urine concentrations of (TIMP-2) × (IGFBP7), TIMP-2 alone, and IGFBP7 alone on AKI day 1 show fair value for prediction of RRT initiation. However, they fail to predict 30-day mortality.
Exploring Household Water, Sanitation, and Hygiene and Acute Diarrhea among Children in St. Martin’s Island, Bangladesh: A Cross-Sectional Study
Authors: Jubayer Ahmed , Hafizul Islam Md. , Nowar Abira , Islam Saiful 
Published: June 2022

ABSTRACT.
Basic sanitation, safe drinking water, and proper hygiene practice may lessen the burden of waterborne illnesses and neglected tropical diseases. The current study sought, for the first time, to evaluate household water, sanitation, and hygiene (WASH) practices and acute diarrhea among children under 5 years of age and their associated factors on St. Martin’s Island. Two hundred one households with at least one child aged under 5 years were interviewed using a pretested semi-structured questionnaire designed according to UNICEF/WHO Joint Monitoring Program for Water Supply, Sanitation, and Hygiene 2019 and on-the-spot observations. Multiple logistic regression analyses investigated the association between potential sociodemographic characteristics, WASH components, and acute diarrhea. Almost all sampled households (99.5%) had improved drinking water facilities. More than one-third (36.5%) did not have an improved sanitation facility, and open defecation was reported by 12.4% of study subjects. Only one-third of respondents reported washing their hands with soap or detergent after defecation, and approximately 29% of respondents reported sharing their toilet with other family members. A handwashing station with soap and water was observed in only 14.4% of cases, whereas more than 22% had none. More than one-quarter (26.4%) of children aged under 5 years were reported to experience acute diarrhea. Access to WASH facilities and the occurrence of acute diarrhea were found to be associated with a set of demographic and socioeconomic characteristics. Sanitation facilities are limited and inappropriate WASH practices are prevalent in the studied population with linkage to diarrhea in children; therefore, urgent attention is needed to improve WASH facilities and encourage health-promoting WASH behavior in St. Martin’s Island population.
Metodologia WebQuest nas aulas de Matemática em contexto de pandemia da Covid-19
Authors: Silva Vítor Marinho , Oliveira Carloney Alves de 
Published: June 2022

O ensino de Matemática no cenário de aulas remotas, em virtude da pandemia da Covid-19, tem implicado em “arranjos” nos fazeres docentes, desde o “como ensinar” ao “como avaliar” as aprendizagens dos alunos. Este trabalho trata-se de uma investigação qualitativa do tipo exploratória, que definiu por objetivo investigar como o uso da metodologia WebQuest pode auxiliar o professor de Matemática. Os resultados indicam, por um lado, que fazer uso da metodologia WebQuest contribui no processo de aprendizagem dos alunos. Por outro lado, possibilita a comunicação deles com o professor e desenvolve a capacidade de aprendizado a partir da investigação e colaboração com outros alunos.
Klinik Uygulama Deneyimi Yaşayan Öğrenci Hemşirelerin Depresyon Düzeyleri ve Bakım Davranışları Arasındaki İlişki
Authors: ÖNVER Büşra Aleyna , ÜNLÜSOY DİNÇER Nigar 
Published: June 2022

Amaç: Çalışma klinik uygulama deneyimi yaşayan hemşirelik öğrencilerinin depresyon düzeyleri ile bakım davranışları arasındaki ilişkinin belirlenmesi amacıyla tanımlayıcı ilişkisel araştırma tasarımında gerçekleştirilmiştir.
Yöntem: Çalışma; bir devlet üniversitesinin hemşirelik bölümünde klinik uygulama deneyimi yaşayan 503 hemşirelik öğrencisinden çalışmaya katılmayı kabul eden, formlardaki tüm soruları cevaplandıran 234 öğrenci ile gerçekleştirilmiştir. Veriler “Kişisel Bilgi Formu”, “Beck Depresyon Ölçeği” ve “Bakım Davranışları Ölçeği-24” ile 10 Mart-15 Mayıs 2019 tarihleri arasında yüz yüze veri toplama yöntemi ile toplanmıştır. Elde edilen verilerin analizi SPSS 22.0 programında yapılmıştır.
Bulgular: Çalışmaya katılan öğrencilerin yaş ortalaması 20.63±1.40 olup, %80.0’ı kadındır ve yaklaşık yarısı (%54.7) hemşirelik bölümünü isteyerek tercih etmiştir. Öğrencilerin %5.6’sının (n=13) şiddetli depresif belirtiler gösterdiği ve “Beck Depresyon Ölçeği” puan ortalamalarının 13.42 ± 9.00 olduğu saptanmıştır. “Bakım Davranışları Ölçeği-24” toplam puan ortalamaları 4.88 ± 0.66 olan öğrenciler en yüksek puan ortalamasını ölçeğin “saygılı olma” alt boyutundan almışlardır. Beck Depresyon Ölçek puanı ve Bakım Davranışları Ölçeği-24 toplam ve alt boyutları arasında istatistiksel olarak önemli fakat zayıf düzeyde negatif yönlü bir korelasyon saptanmıştır (p