bluuebunny/crossref_metadata_2025_split huggingface dataset:
Characterization of chestnut starch acetate with different degrees of substitution
Authors: Hu Na , Tang Erjun , Wang Shuo , Yuan Miao , Liu Shaojie , Chu Xiaomeng , Xing Xuteng , Liu Xinying , Jewell Linda 
Published: February 2023

Abstract
Chestnut starch acetates (CSA) with different degrees of substitution (DS) were prepared. The structure and physicochemical properties of CSA were then determined, with scanning electron microscopy showing that most of the CSA granules were damaged and dented, and adhered with increased in DS. X-ray diffraction results indicated that the crystal form of CS and CSA was type C. Chemical structure analysis showed that the starch molecule was grafted with acetyl groups. The transparency, freeze–thaw stability, solubility and swelling power of CSA improved with an increase in DS. The viscosity and stability of CSA were significantly improved and pasting temperatures reduced compared with native CS. The cohesion, hardness, gumminess, chewiness and springiness of CSA decreased with an increase in DS, whereas adhesiveness increased. By comparing the properties of CSA with different DS, a new option was provided for the application of renewable natural polymer CSA in food fields.
Better Use an Arrow: ‘I-Thou,’ ‘Relation,’ and Their Difference in Martin Buber’s I and Thou
Authors: Ziderman Asaf 
Published: February 2023

Abstract
This paper corrects a pervasive mistake in readings of Buber’s iconic trope, “I-Thou” (Ich-Du; hereafter, I-You). The mistake lies in considering it synonymous to the principal concept of his dialogical thought, “relation” (Beziehung). A detailed reading of relevant passages in Buber’s I and Thou (hereafter, IAT) reveals their difference: While both “relation” and “I-You” refer to the same reality—to the dialogic moment—they do so with a different focus and scope: “Relation” refers to the dialogic moment in its bilateral entirety. However, “primary word I-You” (hereafter, PWIY)—the phrase in which the I-You trope in fact appears in IAT—focuses on the active share of only one of the two interlocutors in the dialogic moment. While PWIY does refer to the dialogical moment (which is indeed bilateral), it denotes only a partial aspect of the dialogical moment. It focuses exclusively on my active turning toward you and defocuses your concurrent turning toward me (which, no doubt, is present as well). This mistake, I show, is due to interpreters’ enthusiastic endorsement of Buber’s later phrase, the “I-You relation,” which is indeed synonymous with “relation.” It is then easy to read back the “I-You relation” into the earlier, more focused concept of PWIY. Furthermore, this enthusiasm has blinded readers from realizing that, following IAT, Buber in fact abandoned the I-You trope and used it only reluctantly, mainly when addressing his interpreters who used it themselves, or when discussing IAT where it indeed appeared.
Stepped waveguide metamaterials as low-loss effective replica of surface plasmon polaritons
Authors: Qin Xu , He Yijing , Sun Wangyu , Fu Pengyu , Wang Shuyu , Zhou Ziheng , Li Yue 
Published: February 2023

Abstract
Surface plasmon polaritons (SPPs) have attracted intensive attention for the unprecedented developments of light–matter interactions in optics and photonics, providing a feasible method for light confinement and transmission at a subwavelength scale. However, SPPs traditionally suffer from large losses due to the intrinsic dissipations and absorptions, which hinder further development and applications of SPPs. Here, we theoretically and experimentally investigate the concept of stepped waveguide metamaterials behaving as low-loss effective replicas of SPPs. The proposed structure without natural plasmonic material maintains the identical field configuration to that in regular SPP but avoids the inherent losses, outperforming regular low-loss SPP design with natural plasmonic materials on SPP propagation lengths. Furthermore, stepped waveguide metamaterial exhibits excellent compatibility in direct interconnections with arbitrary regular SPP and potentially represents a feasible route toward new SPP devices with low-loss advantages.
Streaming media business strategies and audience-centered practices: a comparative study of Netflix and Tencent Video
Authors: Tang Wenjia , Wei Mingou 
Published: February 2023

Abstract

Purpose
This comparative study of streaming services in different cultural and economic contexts shows how they optimize the user experience by improving recommendation algorithms, upgrading infrastructure, and developing global services, in responding to the crisis of losing subscribers.

Method
We use analysis of industry documents to demonstrate how different approaches to streaming video business value user-generated data and reconstruction practices.

Findings
There is already a similar trend among global streaming platforms to create a pan-media entertainment & cultural service by increasing revenue streams and merchandise offering categories, as well as keeping subscriptions and attracting more viewers in the long run.

Practical implications
The study displays how streaming platforms with SVOD, AVOD, and Mix-funded modes are changing their business strategies in the current hyperinflationary and increasingly competitive media market, updating how they create user-centered practices in search of ultimate commercial success.

Social implications
It also illustrates how different commercial streaming service formats end up with similar solutions to the challenges.

Originality/value
The study is a comparative analysis of the streaming phenomenon as it happens in real-time, complementing the observation and evaluation of the latest updates in the streaming industry and predicting the future trends of global brands in the digital ecosystem under different commercial and cultural logics.
Lexicalisation of Polish and English word combinations: an empirical study
Authors: Maziarz Marek , Grabowski Łukasz , Piotrowski Tadeusz , Rudnicka Ewa , Piasecki Maciej 
Published: February 2023

AbstractOne of the main research questions concerning multi-word expressions (MWEs) is which of them are transparent word combinations createdad hocand which are multi-word lexical units (MWUs). In this paper, we use selected corpus-linguistic and machine-learning methods to determine which lexicalization criteria guide Polish and English lexicographers in deciding which MWEs (bigrams such as adjective+noun and noun+noun combinations) should be treated as lexical units recorded in dictionaries as MWUs. We analyzed two samples: MWEs extracted from Polish and English monolingual dictionaries, and those created by the annotators, and tested two custom-designed criteria, i.e., intuition and paraphrase, also by using statistical methods (measures of collocational strength: PMI and Jaccard). We revealed that Polish lexicographers have a tendency not to include compositional MWEs as lexical entries in their dictionaries and that the criteria of paraphrase and intuition are important for them: if MWEs are not clearly and unambiguously paraphrasable and compositional, then they are recorded in dictionaries. We found that in contrast to Polish lexicographers English lexicographers tend to record also compositional and partly compositional MWEs.
Study on the pattern of spermatogenesis during the breeding season of the Chinese soft-shelled turtle, Pelodiscus sinensis (Reptilia: Trionychidae)
Authors: Yang Yu-Fei , Wu Jia-Hao , Lin Run-Lan , Yin Shang-Jun , Qian Guo-Ying , Wang Wei , Park Yong-Doo 
Published: February 2023

The Chinese soft-shelled turtle, Pelodiscus sinensis (Reptilia: Trionychidae), is a typical seasonal breeding species, and its spermatogenesis pattern is complex. In this study, the process of sperm cell development was studied using histology. The process of sperm cell development may be divided into six stages based on a combination of different cell types in the seminiferous epithelium. A close examination revealed two patterns of sperm cell development in the seminiferous tubules during the breeding season. The first is a normal sperm cell development pattern, in which the process of sperm cell development and maturation are completed in the seminiferous epithelium without round spermatozoa in the lumen. The second is rapid sperm cell development, in which the first batches of round spermatozoa fall off the seminiferous epithelium before they mature, thus beginning a second batch of sperm cell development. The round sperm cells are shed into the lumen and further mature in the seminiferous tubules and epididymis. This rapid sperm cell development process of the Chinese soft-shelled turtle is rare in other vertebrate species and may be an adaptation to cope with seasonal breeding. The results of this study provide insight into the theory of seasonal reproduction in reptiles.

Lay summary
The Chinese soft-shelled turtle is a typical seasonal breeding species, and the process of sperm cell development is complex. In this study, the process of sperm cell development is divided into six stages in Chinese soft-shelled turtles and revealed two patterns of sperm cell development in the testis during the breeding season. The first is a normal sperm cell development pattern, in which the process of sperm cell development and maturation are completed in the testis. The second is a rapid pattern, in which the round sperm cells fall off before they mature and further mature in the epididymis. This rapid sperm cell development process of the Chinese soft-shelled turtle is rare in other vertebrate species and may be an adaptation to cope with seasonal breeding. The results of this study provide insight into the theory of seasonal reproduction in reptiles.
El uso de herramientas SIG para la respuesta a la violencia de género en las áreas rurales desde la criminología
Authors: Ortiz García Jordi 
Published: February 2023

Los sistemas de información geográfica se han convertido durante estos últimos años en una herramienta de análisis muy importante para las ciencias sociales y humanas. Las tecnologías de información geográfica nos ofrecen nuevas oportunidades para llevar a cabo investigaciones en disciplinas como la historia, la arqueología, las ciencias políticas o la criminología. La georreferenciación de distintos eventos permite mejorar de forma notable nuestras investigaciones científicas y facilitar la interdisciplinariedad entre diferentes ciencias. El objetivo principal de este trabajo es explicar como el uso de herramientas SIG pueden favorecer al análisis de datos desde una perspectiva criminológica, rural y de género. Concretamente, este trabajo muestra paso a paso algunas herramientas que puedan facilitar el estudio de la problemática de la desigualdad de género en el medio rural y ofrecer un diagnóstico más real de los problemas que se producen en estas áreas. El marco espacial elegido para este trabajo ha sido la Comunidad Autónoma de Extremadura. Para finalizar indicar que los resultados de este trabajo muestran la importancia de incorporar el elemento geográfico en los estudios de seguridad y género en el medio rural.
La COVID 19 y el Espacio Schengen. Hacia un nuevo modelo de interdependencia europeo
Authors: González Ana María 
Published: February 2023

Determinados elementos diferenciales de la arquitectura política-institucional interna de la Unión Europea (UE) y su propia naturaleza jurídica condicionan y determinan su comportamiento y la eficacia de sus decisiones, convirtiendo a esta organización internacional sui generis en un actor internacional de primer nivel. Esta condición ha hecho que, en el marco de las relaciones internacionales, y en concreto tras la pandemia, deba estudiarse de manera diferenciada su impacto sobre conceptos de las relaciones internacionales como la interdependencia. Todas las restricciones a la movilidad durante la pandemia se adoptaron a nivel nacional, sin ser acordadas ni coordinadas previamente a nivel de las instituciones de la UE. En el marco institucional, la Comisión Europea se limitó a adoptar un conjunto de medidas de derecho indicativo o “soft law” destinadas a coordinar las medidas nacionales y a subrayar la importancia de la no discriminación y la proporcionalidad en su aplicación que, en muchos casos, no se respetó.

La UE es una entidad compleja y dividida que implica a muchos actores —sociales, regionales, Estados miembros, instituciones supranacionales…— y por tanto los modelos que adopta en situaciones de crisis repercuten no solo en los Estados miembros, sino que muestra la importancia de la complejidad en la era de la globalización.

Un estudio de estos modelos, en cierta medida, nos facilita la posibilidad de establecer patrones que, a pesar de la complejidad de la sociedad internacional y las relaciones internacionales, nos permitirían ofrecer múltiples canales que faciliten la colaboración global en la solución de fenómenos específicos.

La presente propuesta pretende contribuir a esclarecer esos patrones y consecuentemente establecer nuevas líneas de desarrollo en la investigación sobre el concepto de la interdependencia tras la pandemia ocasionada por la COVID-19 en el espacio Schengen. Este nuevo marco de interpretación de la interdependencia contribuirá a la comprensión de algunos aspectos actuales de las relaciones internacionales contemporáneas. Así, la interdependencia que se genera en uno u otro modelo de convivencia entre Estados determina en última instancia la respuesta de estos a mutaciones tan excepcionales como la generada por la COVID-19 en 2020 y su impacto en lo que siempre se ha considerado uno de los logros más notables de la integración europea, el mercado único.
Surveying methods and instruments for heritage properties, using decision tree and Artificial Neural network analysis
Authors: Roka-Madarasz Livia 
Published: February 2023

AbstractThis paper demonstrates the application of surveying methodologies aiding the management of heritage properties, especially for UNESCO World Heritage sites. The objective of the current study is to provide an overview of the historical background of surveying a particular field of engineering and the related social environment. In Europe, all types of historic streets and avenues share a centuries-long common history. Investments financed by governments, capital or residential sources relating to these streets have provided opportunities for interesting architectural experiments. This study demonstrates the intensity of these investments and the morphological and functional changes in relation to their distance from the CBD. To achieve this objective, based on an on-line database of housing features and values, apartments (n = 1,031) from the range of Residential Real Estates in Teréz Town Budapest were collected. Data statistics tools included a Decision Tree and an Artificial Multi-layer Neural Network employed in order to analyse inequalities in price according to the condition of the property and available conveniences. The characteristics of monocentricity/polycentricity are shown to be adaptable elements that have been used historically in urban landscapes and can be implemented in urban design to enhance green spaces and improve the overall quality of urban life. As good examples, the Andrássy/Hübner - Court and the ICOMOS prize-winning renovation of the Wahrmann Palace are presented. Real estate can carry both real and philosophical meaning. Sometimes buildings express physical reality in the environment, at others, they have a symbolic meaning, e. g. an urban idyll, harmony with the habitat, local community, heritage property, wealth or poverty, integration or segregation of people or families. Functional changes support long-term decision-making for investors and city residents in search for better locations within global cityscapes.
La formación ciudadana en la primera infancia
Authors: Navarro Sánchez María Angélica 
Published: February 2023

Este artículo de reﬂexión se centra en la importancia de la formación ciudadana en la primera infancia y los aportes de la neurociencia en el desarrollo infantil, al constituirse en una oportunidad educativa para cimentar las bases, desde la educación inicial, de un ejercicio ciudadano que permita el disfrute de la libertad y la participación en los asuntos de lo público con plenas garantías de expresión y responsabilidad. Así, es posible construir una sociedad cada vez más comprometida con el bien común y el cuidado de los niños.
Adrenalina
Authors: Enríquez Meza Rodrigo 
Published: February 2023

La adrenalina es una sustancia química que se produce en la médula de las glándulas suprarrenales, en conjunto con la noradrenalina, conocidas como catecolaminas, son sustancias que estimulan a las células corporales. La adrenalina puede comportarse como hormona cuando se vierte en la sangre y su efecto puede ser más prolongado que cuando se comporta como neurotransmisor en las sinapsis neuronales, donde cumple la misma función que en otros tejidos pero en un espacio más corto de tiempo. Tanto la adrenalina como la noradrenalina son esenciales para que el cuerpo se prepare para sobrellevar una emergencia o un evento que sea interpretado por el sistema nervioso como peligroso; por lo tanto, son consideradas sustancias vitales en el sistema simpático, responsable de la activación fsiológica del organismo cuando así lo requiere. Finalmente, es importante considerar que en el ejercicio y en el deporte las necesidades del cuerpo están incrementadas y por tanto el organismo libera adrenalina para cumplir con las funciones metabólicas aumentadas que una persona necesita para desarrollar dichas actividades. El propósito de este artículo es servir de apoyo académico en la asignatura de Fisiología del ejercicio que cursan los estudiantes de la Licenciatura en Educación Física.
Psychological Indicators Ensuring Efficiency of the Chess Player's Competitive Activity
Authors: Geghamyan Vardan , Tarjumanyan Silvi 
Published: February 2023

The work is based on the discussion of psychological problems in modern chess, which are significantly related to the rapid growth of chess competitiveness in recent years, the frequency of participation in competitions, the intensity of competition and other similar manifestations.
The study purpose. We tended to identify the most important psychological indicators that ensure the effectiveness of the chess player's competitive activity, to describe their correlational relations and the peculiarities of their manifestation.
Materials and methods. The research process was carried out with interconnected laboratory-instrumental and non-instrumental methods, which are of great practical importance in psychology: questionnaires, tests, observations, mathematical statistical methods, as well as self-made "psychodiagnostic multifactorial" equipment. The research was organized among 30 grandmasters in the National men's chess team of the Republic of Armenia through different years, winners of the World Olympiad, World team tournaments, and the World Cup. It targeted the study of the four main areas of a chess player's psyche: competitive mental reliability, individual psychological characteristics, emotional states and emotional abilities.
Results. As a result of the analysis of correlations, the following 8 patterns were singled out from 52 examined psychological indicators: stability to internal uncertainty stressors, competitive emotional endurance, personal anxiety, energetic sphere of competitive motivation, psycho-regulation, mobilization preparedness, attention features and complex motor reaction speed. We consider the selected indicators as the leading psychological factors that ensure the competitive process of the chess player.
Conclusions. Effective manifestations of selected psychological indicators can enable a chess player to perform in a more stable and effective way during decisive competitions. The selected indicators can also describe the level of sports training of a highly qualified chess player and serve as model characteristics of psychological service.
Pengaruh Model Pembelajaran Inkuiri Terbimbing Dengan Pendekatan Konstruktivisme Terhadap Konsep Diri Akademik Siswa Pada Pembelajaran IPA
Authors: Paramita Dyah Ayu 
Published: February 2023

Pembelajaran dengan pendekatan konstruktivisme menyatakan adanya pengaruh interaksi sosial terhadap perkembangan pengetahuan siswa. Konsep diri akademik juga dipengaruhi oleh faktor interaksi sosial karena menyangkut rasa keberhargaan diri siswa selama pembelajaran. Oleh sebab itu dilakukan studi kuasi eksperimen mengenai pengaruh model pembelajaran inkuiri terbimbing dengan pendekatan konstruktivisme terhadap konsep diri akademik siswa. Sebanyak 63 siswa di Kelas V di salah satu sekolah dasar di Kabupaten Ciamis dilibatkan dalam penelitian dengan metode kuasi eksperimen, nonequivalent control group design. Hasil penelitian menunjukkan bahwa terdapat perbedaan hasil post test dan normal gain untuk kelas kontrol dan kelas eksperimen dengan peningkatan normal gain sebesar 0,13.
IMPLEMENTASI STRATEGI THINK-TALK-WRITE (TTW) TERHADAP KEMAMPUAN KOMUNIKASI MATEMATIS SISWA SD
Authors: Larasati Niken , Karlimah Karlimah , Suryana Yusuf 
Published: February 2023

Komunikasi matematis merupakan salah satu kemampuan yang penting dalam pemecahan masalah matematika karena dengan kemampuan komunikasi matematis, siswa mampu mengubah ide matematis ke dalam bentuk algoritma dan gambar, ataupun sebaliknya sehingga siswa mampu memecahkan masalah tersebut dengan baik. Namun berdasarkan observasi yang dilakukan, menunjukan bahwa kemampuan komunikasi matematis siswa dalam pemecahan masalah matematika masih sangat rendah. Penelitian tentang implementasi strategi think-talk-write terhadap kemampuan komunikasi matematis siswa SD ini mempunyai tujuan untuk mendapatkan deskripsi mengenai perbedaan kemampuan komunikasi matematis siswa pada pembelajaran pemecahan masalah keliling dan luas segitiga menggunakan strategi think-talk-write dan tanpa menggunakan strategi think-talk-write. Metode penelitian yang digunakan adalah kuasi eksperimen desain post-test only dengan populasi siswa kelas IV SD di kecamatan Gandrungmangu Kabupaten Cilacap. Sampel terdiri dari 2 kelas, yang dipilih berdasarkan beberapa pertimbangan purposive, yaitu siswa kelas IV SDN 01 Gandrungmangu sebagai kelas kontrol dan siswa kelas IV SDN 02 Gandrungmanis sebagai kelas eksperimen. Instrumen yang digunakan adalah soal tes akhir (post-test) pemecahan masalah tentang keliling dan luas segitiga. Hasil penelitian menunjukkan bahwa: (1) kemampuan komunikasi matematis siswa pada pembelajaran pemecahan masalah keliling dan luas segitiga menggunakan strategi think-talk-write termasuk ke dalam kategori rendah; (2) kemampuan komunikasi matematis siswa pada pembelajaran pemecahan masalah keliling dan luas segitiga tanpa menggunakan strategi think-talk-write termasuk ke dalam kategori sangat rendah (3) terdapat perbedaan kemampuan komunikasi matematis siswa pada pembelajaran pemecahan masalah keliling dan luas segitiga menggunakan strategi think-talk-write dan tanpa menggunakan strategi think-talk-write. Rata-rata peningkatan kemampuan komunikasi matematis siswa pada pembelajaran pemecahan masalah keliling dan luas segitiga menggunakan strategi think-talk-write lebih baik dibandingkan dengan siswa yang mendapatkan pembelajaran tanpa menggunakan strategi think-talk-write.