bluuebunny/crossref_metadata_2025_split huggingface dataset:
An Assessment of the Contributions of Ecosystem Services in Guinea-Bissau: A Case Study of Cantanhez National Park
Authors: Fernandes Joaquim Silva , Foye Victoria Oluwatoyin , Cardoso Leonildo Alves 
Published: January 2025

Valuation of ecosystem services (ES) is vital for national growth and development, particularly in Guinea-Bissau which is ranked among the poorest nations worldwide. Therefore, this study assessed the contributions of five ES (land, sea, medicinal plant, mangrove and tourism) in the Cantanhez National Park with a view to establishing their effects on the growth and development of Guinea-Bissau. Data were purposively obtained through semi-directed interviews and questionnaires from 226 respondents in Tombali. A multi-stage sampling method was employed in this study. At the primary stage, the purposive sampling technique was used to select 11 villages closely situated 3-4km apart within Cantanhez Park while at the secondary stage, a second stage of purposive sampling was employed in the selection of 20 individuals in each village and at the final stage, face-to-face interviews were conducted to establish the robustness of our results. The study adopted the Contingent Valuation Method to elicit information from respondents, while data were subjected to descriptive statistics. The study revealed that people were willing to pay between 1 and 25000 FCFA for the ES, an average of about 12,500 FCFA based on the income of respondents. This value was used to project the additional income and per capita income that could be generated annually from the five ES. These were approximately 5.07 billion FCFA and 2574.09 FCFA respectively. The result showed that ES observed in this study could contribute to the growth and development of Guinea Bissau; and to ensure maximal contribution, successful implementation of the conservatory and regulatory policies is requisite. The study concludes that periodic ecological valuation of ES is essential for inclusive growth and sustainable development.
Intercultural Im/politeness: perceptions of language choice and translanguaging in the Korean community in Australia
Authors: Brown Lucien , Kim Soyeon 
Published: January 2025

Abstract
This paper furthers the literature on intercultural im/politeness by investigating the phenomenon of language choice in multilingual contexts. We investigate how choosing one language over another in contexts where two or more language codes are available can stem from concerns for maintaining or asserting politeness-related norms, and how unexpected or undesired language choices can lead to negative evaluations on the part of the interlocutor. We address these questions via the analysis of narratives collected in oral (76 narratives) and written (96 narratives) forms from members of the Korean community in Australia. The interviews focussed on participants’ experiences in service encounters where a Korean customer interacts with a Korean service provider. Despite both parties being Korean speakers, our analysis shows that participants are actively engaged in choosing whether to use Korean or English, and that such choices are motivated by complex and competing moral orders, linked to wider linguistic ideologies. Choosing Korean is tied up with moral orders connected to community membership and upkeeping Korean-style norms of social interactions. Meanwhile, English indexes notions of equality, and attempts to push back against traditional notions of Korean sociality. Ultimately, the negotiation of language choice ties in with the contested nature of im/politeness in intercultural contexts.
PbO2 substitution impact on the gamma ray shielding effectiveness of borotellurite glasses: a comparative study of attenuation parameters
Authors: Al Huwayz Maryam , Almuqrin Aljawhara H. , Alharbi F.F. , Sayyed M.I. , Albarzan B. 
Published: January 2025

Abstract
This study investigated the radiation shielding characteristics of the 10TeO2-8MgO-8Na2O-(20-x)PbO2-(54-x)B2O3 (where x = 0, 4, 8, and 12 mol%) glasses, identified as Pb20B54, Pb24B50, Pb28B46, and Pb32B42, which correspond to their concentrations of PbO2 and B2O3. The Phy-X software was used to study the radiation shielding properties of the glasses in the energy range of 0.122–0.964 MeV, corresponding to the energies emitted by the Eu-152 source. By analyzing the glasses’ LAC values against the Pb20B54 sample, it was found that there is a-large impact by adding PbO2 to the glass samples, as all differences were positive across all energies. The percentage decrease in HVL showed the advantage of having greater amounts of HVL at low, medium, and high energies. The difference in Zeff values between the Pb20B54 and Pb32B42 reveals that at all energies, the Pb32B42 sample’s Zeff is higher than Pb20B54. The TVL values of the samples showed that the Pb32B42 glass can always be seen to have a lower TVL than Pb20B54. For example, at 0.296 MeV, the TVLs are 2.360 and 1.683 cm for Pb20B54 and Pb32B42, respectively. When evaluating the relationship between density and MFPs, an inverse relationship was revealed, where the highest density samples also have the lowest MFPs. A comparison of the glasses’ HVL versus four glass systems previously investigated is also carried out. The comparisons highlighted the effectiveness of the tested glass system against other shields.
Key glycometabolism during oocyte maturation and early embryonic development
Authors: Zhang Yichuan , Li Tianjie , Wang Yibo , Yu Yang 
Published: January 2025

In briefGlucose metabolism is central to the successful progression from oocyte maturation to blastocyst formation, influencing not only energy production but also key developmental decisions and epigenetic regulation. This review uncovers the intricate interplay between glucose, fatty acids, amino acids and nucleotides, highlighting their crucial roles in early embryonic development and exploring how noninvasive metabolic monitoring can revolutionize embryo selection and personalized assisted reproductive technologies, offering new hope for fertility treatments.AbstractIn recent decades, it has become increasingly clear that mammalian gametes and early embryos are highly sensitive to metabolic substrates. With advances in single-cell sequencing, metabolomics and bioinformatics, we now recognize that metabolic pathways not only meet cellular energy demands but also play a critical role in cell proliferation, differentiation and fate determination. Investigating metabolic processes during oocyte maturation and early embryonic development is thus essential to advancing reproductive medicine and embryology. This review highlights the intricate metabolic pathways, particularly glucose metabolism, that drive the transition from an oocyte to an embryo. These processes involve a complex interaction of signaling pathways, nutrient availability and environmental factors, with glucose metabolism not only providing essential energy but also offering a variety of metabolic substrates and intermediates that regulate developmental events, influence cell signaling and impact epigenetic modifications. This article emphasizes that future research will focus on regulating maternal metabolic environments and noninvasive metabolic monitoring of embryonic systems, particularly glucose metabolism, with promising opportunities to improve embryo selection and personalized assisted reproductive technologies, ultimately enhancing fertility treatment outcomes.
Identification of NDM-1 producing and colistin resistant Klebsiella pneumoniae ST11: A highly drug-resistant strain detected in intensive care unit of a Greek tertiary care hospital
Authors: Chatzidimitriou Maria , Tsolakidou Pandora , Kyriazidi Maria Anna , Chatzopoulou Fani , Varlamis Sotiris , Mavridou Maria , Kalinderi Kallirhoe , Kyriazidis Kyriazis Athanasios , Mitka Stella 
Published: January 2025

AbstractThe spread of NDM-1-harboring Klebsiella pneumoniae is a worldwide concern. In this study the whole-genome sequence (WGS) of a carbapenem- and colistin-resistant K. pneumoniae 838Gr strain is presented. This strain was isolated from a urine sample of a patient in the Intensive Care Unit (ICU) at Volos Hospital, Greece. The initial assembly produced 224 contigs with a combined genome size of 5,561,803 bp and a GC content of 57.21%. The K. pneumoniae strain carried IncR, IncFIA, IncC, and repB (R1701) replicons. Multilocus sequence typing (MLST) analysis revealed that the isolate belonged to the sequence type 11 (ST11) and serogroup KL24 and O2a. The WGS analysis identified several beta-lactamase genes (blaTEM-1B, blaCTX-M-15, blaNDM-1, blaOXA-1, blaVEB-1, blaOXA-10, and blaSHV-11) alongside resistance genes for other antibiotic classes, including floR2, cmlA1, cmlA5, catB3, arr-3, aph(6)-Id, aadA2. Colistin resistance was attributed to specific point mutations in pmrB (R256G, T140P). This is the first report of a carbapenem- and colistin-resistant K. pneumoniae ST11 strain in Greece. The findings of this study highlight the urgent need for increased surveillance and stringent infection control.
ÍNDICE DE MASSA CORPORAL EM ESTUDANTES: análise para avaliação nutricional e estímulo ao comportamento ativo
Authors: Soares Kátia , Rockenbach Tarouco Liane Margarida , Silva Patrícia Fernanda 
Published: January 2025

Introdução: o artigo investiga a influência da tecnologia para avaliar o Índice de Massa Corporal (IMC), funcionando como elemento catalisador de conscientização e motivação dos alunos em relação à importância da atividade física para sua saúde atual e futura. Objetivo: analisar a utilidade, as facilidades e as atitudes relacionadas ao uso do aplicativo de medição do Índice de Massa Corporal (IMC) para avaliar o estado nutricional do estudante, aliado à caminhada e às atividades práticas habituais da Educação Física, a fim de dar sentido à necessidade de um estilo de vida ativo. Método: pesquisa de estudo de caso com análise de dados repetidos com o mesmo grupo e abordagem mista. Resultados: os resultados sugerem que ao utilizar o aplicativo, os estudantes obtiveram melhor conhecimento e compreensão sobre a relação entre peso e altura, devido ao feedback fornecido. No entanto, não houve diferenças estatísticas significativas entre o pré-teste e o pós-teste e não apresentaram correlação com o IMC. Conclusão: com essa experiência, eles se sentiram mais capacitados para tomar decisões e cuidar da própria saúde, demonstrando aumento na literacia em saúde.
Fossil Jellyfishes from Kansas Pennsylvanian Rocks and Elsewhere
Authors: Harrington H.J. , Moore R.C. 
Published: January 2025

A new Pennsylvanian genus of jellyfishes, Crucimedusina, tentatively is referred to the order Hydroida. New genera of Scyphomedusae include Duodecimedusina, established for one new Devonian and two new Pennsylvanian species, and Quadrimedusina, for a Jurassic species. A new class of coelenterates, Dipleurozoa, and new order, Dickinsoniida, are established, to include the new family Dickinsoniidae, based on Dickinsonia Sprigg, a new species of which also is described.
Inferring Stratigraphic Position of Fossil Vertebrates from the Niobrara Chalk of western Kansas
Authors: Bennett S. Christopher 
Published: January 2025

The stratigraphy of the Smoky Hill Chalk Member of the Niobrara Chalk of western Kansas is well understood as a result of the work of Hattin (1982) and Stewart (1988). Marker units identified by Hattin (1982) allow quick determination of the stratigraphic position of a specific outcrop. This study demonstrates that it is now possible to determine the stratigraphic positions of specimens from locality data, thus permitting one to infer stratigraphic position of specimens collected long ago. This technique is particularly useful in the upper half of the Smoky Hill Chalk Member, where biostratigraphy is not informative. The stratigraphic distribution of the type skulls of the pterosaur Pteranodon is examined as an example of the procedure, which in turn demonstrates that the procedure can have the power to reject hypotheses. Inferring stratigraphic positions of fossil vertebrates may be useful in further studies of the large collections of fossil vertebrates from the Smoky Hill Chalk Member. In addition, examination of the stratigraphic distribution of outcrops of the Smoky Hill Chalk Member in western Kansas suggests that most of the fossil vertebrates collected from the member came from a rather restricted stratigraphic interval between Marker Units 15 and 20.
Fusulinids from the Howe Limestone Member (Red Eagle Limestone, Council Grove Group) in Northeastern Kansas and their Significance to the North American Carboniferous (Pennsylvanian)-Permian Boundary
Authors: Wahlman Gregory P. , West Ronald R. 
Published: January 2025

Fusulinids from the Howe Limestone Member (upper part of the Red Eagle Limestone, lower part of the Council Grove Group) are described here for the first time. The Howe fauna is particularly significant because it represents the earliest fusulinids known to occur above the new conodont-based Carboniferous (Pennsylvanian)-Permian boundary at the Glenrock Limestone Member-Bennett Shale Member contact (Red Eagle Limestone) in northeastern Kansas. The Howe fusulinid assemblage is composed entirely of species of the genus Leptotriticites. The species L. hughesensis and L. glenensis were originally described from just beneath the new systemic boundary horizon in the Hughes Creek Shale Member and Glenrock Limestone Member, respectively. L. wetherensis is a species from the Stockwether Limestone Member of north-central Texas, which is thought to directly overlie the new systemic boundary in that region. L. gracilitatus is a species reported from below and above the boundary in west Texas and New Mexico. Therefore, the Howe Limestone Member fusulinid fauna is quite transitional in character. The first typical and diagnostic early Permian (Wolfcampian Series) fusulinids in the midcontinent section appear in steps through the stratigraphically higher Neva Limestone Member of the Grenola Limestone (Paraschwagerina kansasensis), and the Cottonwood and Morrill Limestone Members of the overlying Beattie Limestone (Schwagerina jewetti, S. vervillei). This offset of conodont and fusulinid faunal changes should be taken into account in regional and interregional biostratigraphic correlations of the new systemic boundary.
Neogene (Plio-Pleistocene) Fresh-Water Ostracodes from the Central High Plains
Authors: Gutentag Edwin D. , Benson Richard H. 
Published: January 2025

Pleistocene deposits in southwestern and central Kansas, western Oklahoma, and northern Texas have yielded eleven species of fresh-water ostracodes. Pliocene and Recent deposits have each yielded one species. Genera represented are Cypricercus, Eucypris, Cypridopsis, Potamocypris, Candona, Ilyocypris, Cyprideis, and Limnocythere. Four species are new: Eucypris meadensis, Candona nyensis, C. renoensis, and Limnocythere staplini. Nine species described previously from living forms were found as fossils: Cypricercus tuberculatus (Sharpe), Cypridopsis vidua (O. F. Müller), Potamocypris smaragdina (Vávra), Candona caudata Kaufmann, C. crogmaniana Turner, C. fluviatilis Hoff, Ilyocypris bradyi Sars, I. gibba (Ramdohr), and Cyprideis littoralis Brady.
All genera represented and two of the new species (Eucypris meadensis and Candona nyensis) are living today. The existing classification of living ostracodes, based on appendages, is used for the Pleistocene forms, although the fossil ostracodes were necessarily described on the basis of their carapace features.
Candona nyensis n. sp. seems to be restricted to deposits of Pleistocene age, and can be used locally in southwestern Kansas to distinguish Pleistocene from Pliocene sediments.
Cyprideis littoralis Brady, which normally lives in brackish water, seems to have become adapted to the fresh-water environment of Pleistocene sinkholes.
Сравнительный анализ методов оценки контраста изображений
Authors: Дубровская Е.А. , Баланев К.С. , Привалов К.Э. , Раскатова М.В. 
Published: January 2025

Проведен сравнительный анализ методов оценки контраста изображений, включая глобальные методы (RMS-контраст, энтропийный контраст, контраст по диапазону) и локальны методы с использованием сверточных операторов (Собеля, Прюитта, Лапласа, Робертса), а также контраст Вебера и локальное стандартное отклонение. Исследованы особенности каждого метода, их чувствительность к шуму и точность оценки локальных и глобальных изменений яркости. На основе анализа экспериментов выявлено, что локальные методы, такие как сверточные операторы и контраст Вебера, более точно оценивают локальные контрасты, но чувствительны к шумовым артефактам. Глобальные методы на основе гистограмм, включая RMS-контраст и энтропийный контраст, предоставляют общую оценку контраста без учета локальных особенностей изображения.
The article provides a comparative analysis of image contrast estimation methods, including global methods (RMS-contrast, entropy contrast, range contrast) and local methods using convolutional operators (Sobel, Pruitt, Laplace, Roberts), as well as Weber contrast and local standard deviation. The features of each method, their sensitivity to noise, and the accuracy of estimating local and global brightness variations are investigated. Based on the analysis of experiments, it is found that local methods, such as convolutional operators and Weber contrast, are more accurate in estimating local contrasts but sensitive to noise artifacts. Global histogram-based methods, including RMS contrast and entropy contrast, provide an overall contrast estimate without considering local image features.
Математическая модель решения задачи линейного программирования с помощью симплекс-метода
Authors: Божко Л.М. , Дергачев А.И. , Дергачев С.А. 
Published: January 2025

Использование математического аппарата для выбора наиболее эффективного решения проблемы, поиска оптимального варианта актуально и востребовано с учетом ограниченности ресурсов. Методы линейного программирования находят широкое применение при решении экономических задач, планировании производства. Исследование направлено на разработку методики открытых проектов решения специальных задач. Предлагаемый подход позволяет оценить эффективность управленческой деятельности с позиций системного подхода к решению задач на ЭВМ, рассчитать и обосновать предлагаемое решение поставленной задачи. В качестве примера подготовки к решению на ЭВМ выбрана задача линейного программирования. Решение такой задачи позволяет находить оптимальный вариант использования отведенных ресурсов.
The use of a mathematical apparatus to choose the most effective solution of the problem and find the best option is relevant and in demand taking into account the limited resources. Linear programming methods are widely used in solving economic problems, in production planning. The study is aimed at developing a methodology for developing open projects for solving special problems that can be used in organizations. The proposed approach makes it possible to assess the effectiveness of management activities from the standpoint of a systematic approach to preparing for solving tasks on a computer, to calculate and justify the proposed solution of the task. As an example of preparation for a computer solution, a linear programming problem was chosen. Solving this problem allows you to find the best option for using the allocated resources.
Стабилизация программных движений большой динамической системы с ограничениями на векторы координат и управлений
Authors: Ефремов А.А. 
Published: January 2025

Задачи стабилизации программных движений и положения равновесия ‒ актуальные прикладные задачи современной теории автоматического управления. В данной работе для стабилизации положения равновесия и программных движений большой нелинейной динамической системы, состоящей из s подсистем, применяются проекционно-операторные методы математического программирования. Большая динамическая система представлена в виде блочно-диагонального оператора с блоками, заданными нелинейными стационарными разностными операторами. В качестве примера рассмотрен блочно-диагональный оператор электроэнергетического объединения, состоящего из трех электроэнергетических систем, подключенных к шине бесконечной мощности линиями электропередач.
The problems of stabilization of programmed movements and equilibrium positions are topical applied problems of the modern theory of automatic control. In this work, to stabilize the equilibrium position and stabilize the programmed movements of a large nonlinear dynamic system consisting of “s” subsystems, projection-operator methods of mathematical programming are used. A large dynamical system is defined as a block-diagonal operator with blocks defined by nonlinear stationary difference operators. As an example, the article considers a block-diagonal operator of an electric power association consisting of three electric power systems connected to an infinite power bus by power lines.
Laborious Transformations: Plants and Politics at Bogor Botanical Gardens
Authors: Weber Andreas , Wille Robert-Jan 
Published: January 2025

Contributors to this theme issue examine the history of the life sciences at the Botanical Gardens in Bogor (Kebun Raya Bogor) in Indonesia. Each of the essays in this theme issue, focusses on a major transformation which the garden, its networks, and staff underwent in the nineteenth and twentieth centuries. Next to summarizing individual contributions, this introductory essay familiarizes readers with more recent scholarship in the field. Taken together, our theme issue suggests that the practice of the life sciences at the Gardens can be best analyzed as the outcome of historical processes of coordination and competition in which different disciplines, communities, networks not only in insular Southeast Asia but also other parts of the world played a formative role.
Comunicado de imprensa como indicador de atenção social qualificada da ciência: a construção de um banco de dados e suas potencialidades
Authors: Barata Germana , Oliveira Monique , Peixoto Thaís , De Almeida Carlos Caetano , Mazoni Alysson Fernandes , Comesana Rodrigo Costas , Alperin Juan Pablo 
Published: January 2025

Na última década, a altmetria contribuiu para abrir espaço para indicadores de atenção e impacto social da ciência, e a repaginar a cienciometria, embora ainda persista a centralidade das métricas de performance na produção científica. Nesse sentido, há uma demanda por outras fontes de dados que contribuam para conferir contexto e também fornecer substrato para a construção de outros indicadores, capazes de atuar na interface ciência-sociedade de forma mais qualificada. Este trabalho demonstrará o potencial de que um banco de dados estruturado de press releases (comunicados de imprensa) seja um dos caminhos pelos quais indicadores de atenção social da ciência podem ser melhor contextualizados e compreendidos. Para isso, foi realizada a coleta de comunicados de imprensa de três agências de notícias de ciência: Eurekalert! (EUA), AlphaGalileo (Reino Unido) e Agência BORI (Brasil). Essas agências disponibilizam nos seus sites os press releases sobre artigos científicos; no entanto, informações importantes como título do artigo, conteúdo, data da publicação, URL, DOI, não estão disponíveis de forma estruturada. Foram utilizadas técnicas de web scraping na coleta, organização e análise dessas informações. A utilização de web scraping com o armazenamento em banco de dados MySQL mostrou-se eficaz para coletar e gerenciar informações de páginas web dessas agências, possibilitando com que análises abrangentes e contextualizadas sejam realizadas. Enquanto o comunicado de imprensa não é a única forma de qualificar e entender a atenção social da ciência, a construção do banco de dados e testes realizados demonstram que se trata de um material relevante nessa compreensão.