bluuebunny/crossref_metadata_2025 huggingface dataset:
A model on transitions between steady states of sub-Keplerian accretion discs
Authors: Ajay Arunima , Rajesh S R , Singh Nishant K
Published: December 2023

We present here a simple hydrodynamic model based on a sequence of steady states of the inner sub-Keplerian accretion disc to model its spectral states. Correlations between different hydrodynamic steady states are studied with a goal to understand the origin of, e.g., the aperiodic variabilities. The plausible source of corona/outflow close to the central compact object is shown to be a consequence of steady state transition in the underlying accretion flow. We envisage that this phenomenological model can give insight on the influence of environment on the inner sub-Keplerian accretion disc.
Enhancing precision in quantification and spatial distribution of logging residues in plantation stands
Authors: Udali Alberto , Talbot Bruce , Ackerman Simon , Crous Jacob , Grigolato Stefano
Published: December 2023

Forests, essential components of ecosystems, are managed for sustainable timber production in forest plantations to meet the growing demand for wood products. The intricate balance between sustainable forest management and logging residue practices is crucial for ecological integrity and economic viability. Logging residues, byproducts of timber harvesting, significantly influence carbon and nutrient cycling, soil structure, and overall ecosystem health. Recent technological advancements, particularly the use of drones integrated with artificial intelligence, enable the processing of large datasets, providing meaningful insights into logging residues and forest dynamics. This study aims to evaluate the quantification and distribution of logging residues in forest plantations, utilizing machine learning classification models fed with drone-based images. The classification was performed using a Random Forest model fed with spectral and terrain variables, whereas the volume estimations were derived from field measurements and from the drone classification. Overall the classification achieved solid results (Overall Accuracy of 0.89), and the volume estimation resulting in solid comparison with field estimation (ratio 0.43–1.37), but poor correlation (R2 of 0.17 and 0.31). We concluded that the proposed methodology is suitable for classifying and assessing residues distribution over recently harvested areas, but further improvement of the volume estimation methodology is necessary to ensure comprehensive and precise assessment of residue distribution over recently harvested areas.
Graft-versus-host-disease in hematopoietic stem cell transplant recipients from diverse nationalities and transplant centers: a single-center cohort study in the UAE
Authors: Syed Naveed , Afrooz Imrana , Mir Farooq Ahmed , Khan Azmat Ali , Abdulla Nada J.M.H. , Hussain Shakir , Uttamchandani Ashok , Samer Hanin , Hassan Amera , Ghazali Gehad El , Hashmi Shahrukh
Published: December 2023

Background: Graft-versus-host-disease (GVHD), affecting 30-50% of cases, is a complex, multisystem disorder contributing to non-relapse mortality. In the UAE, where patients from different nationalities have historically sought transplants abroad at multiple transplant centers due to a lack of local facilities, the epidemiology of and outcomes for GVHD are unknown.
Objectives: To assess the incidence, risk factors and correlations of GVHD in different organs of HSCT recipients from different transplant centers and countries.
Methods: We conducted a single-center cohort study of 91 patients seen from January 2019 to December 2022. Data was extracted from Electronic Medical Records (EMRs). Descriptive statistics, bivariate correlation analyses, and relative risk calculations were utilized to present the results.
Results: 32% of the recipients were from different countries of origin that underwent transplants in transplant centers globally. The male-to-female ratio among recipients was 1.27; the average recipient age was 24 years. A total of 69.2% had matched identical donors, and gender distribution among donors was 61% male and 29.6% female. The most common indications for HSCT included acute leukemia (28.4%) and Beta-thalassemia (2 0.8%).
GVHD was observed in 43.9% of patients, with acute and chronic types almost equally present. Significant risk factors for GVHD included recipient age (p=0.004), HSCT indication (p=0.007), GVHD prophylaxis (p=0.03), pre-HSCT chemotherapy lines (p=0.03) and HLA match (p=0.66). The most affected organs were the skin (34%) and gastrointestinal tract (25.5%). Organ-specific GVHD correlated well with other organ GVHD, apart from lung and ocular GVHD. Risk factors aligned well with overall risk factors, except for lung GVHD. Ocular GVHD occurrence was less frequent compared to existing reports. Among the 10% deceased at study closure, 66% had GVHD.
Conclusions: Predominant HSCT recipients were young and mainly had related, HLA identical donors. Our study uniquely reported that HLA matching did not significantly influence GVHD outcomes. The skin emerged as the primary site for GVHD, ocular GVHD was less common than in other studies, and lung GVHD showed no association with typical risk factors or ocular GVHD. These variations contributed to the complexity and variability of GVHD risk and manifestations, which posed challenges for post-transplant care.Sample size and heterogeneity underscore the necessity for more extensive, multi-center research.
Jugendroman
Authors: Ullmann Anika
Published: December 2023

[English title and abstract below]
Der Begriff Jugendroman wird gemeinhin als Sammelbegriff für eine Vielzahl von Genres verwendet. Bezeichnenderweise bleibt der Jugendroman selbst in den Definitionen abwesend, da er erst durch andere Gattungen als Ergänzung an Substanz gewinnt. Ziel des Aufsatzes ist es, eigenständige Erzähllogiken des Jugendromans zu benennen. Zu diesem Zweck wird zunächst ein Konzept von Jugendliteratur als Oberkategorie für mehrdimensionale Altersbilder skizziert und anschließend die Bedeutung von Jugend als sozialer Dimension des Alters aufgezeigt. Weiterhin wird eine Neugewichtung gängiger Erzähl- und Deutungsmuster vorgenommen, die intrapersonales Wachstum als Kern der Jugendliteratur etablieren und verfestigen. Daraus ergibt sich die Genese flexibler narratologischer Konzepte von Mobilität. Jugendromane sind demnach Narrative der äußeren, sozialen Mobilität, die die soziale Dimension des Alters konstruieren und verhandeln. 
 
The Youth Novel Narratives of Social Mobility 
The term ‘youth novel’ is commonly used as a collective term for a variety of genres. Significantly, the youth novel itself is rarely defined; it seems to gain substance only via other genres. The aim of this article is to outline the independent narrative logic of the youth novel. At the outset, a concept of youth literature as a superordinate category for multidimensional age emplotments is sketched, followed by a demonstration of the significance of youth as a social dimension of age. After that, the common narrative and interpretive patterns that establish and solidify intrapersonal growth as the core of young adult literature are rebalanced, and the genesis of a flexible, narratological concept of mobility emerges. Youth novels are thus shown to be narratives of external social mobility that construct and negotiate the social dimension of age.
St. Petersburg Academy of Arts and Sciences in the Network of European Academies in the Early Modern Period: The Place of "Arts" in the Structure of Scientific Knowledge
Authors: Келлер А.В.
Published: December 2023

Анализируется структура научного знания Раннего Нового времени на примере места «художеств» в Академии художеств и наук, учрежденной именным указом из Сената 28 января (8 февраля) 1724 года в Санкт-Петербурге, и место последней в общеевропейской сети академических сообществ. Задача исследования показать актуальность и инновационность петровского академического проекта, как в силу специфических российских условий, так и в силу особенностей структуры научного знания Раннего нового времени. На примере 1) общего и различного между Петербургской академией наук и ведущими европейскими академиями, 2) особенностей словосочетания «художества и науки» в контексте петровского времени обосновывается тезис, что Художественные палаты и ремесленные мастерские при Академии не были всего лишь «обслуживающими» потребности науки и осуществлявшие «побочные» работы, не имеющие отношения к «чистой науке». Художества были самими инструментами «производства фактов» в науке и для науки, неотделимые от ее процесса. В момент учреждения Академии, без наук не могло быть художеств, как и художеств без наук. Присутствие словосочетания «художества и науки» в названии Академии хорошо объясняется семантикой слова «художество», включавшего в себя и науки, и искусства, и ремесла.

This article analyzes the structure of scientific knowledge in the Early Modern period with reference to the place of "arts" in the Academy of Arts and Sciences, established by a nominal decree from the Senate on January 28 (February 8), 1724 in St. Petersburg, and the place of the latter in the pan-European network of academic communities. The study aims to show the relevance and innovativeness of the Russian academic project, both due to specific Russian conditions and the peculiarities of the structure of scientific knowledge of the Early Modern period. Based on 1) the common and the different between the St. Petersburg Academy of Sciences and the leading European academies, 2) peculiarities of the phrase "arts and sciences" in the context of Petrine times, the thesis is substantiated that the Art Chambers and craft workshops at the Academy did not just "serve" the needs of science and carry out "side" work that had nothing to do with "pure science". The arts were themselves instruments of "fact production" in and for science, inseparable from its process. At the time of the establishment of the Academy, there could be no sciences without art, just as there could be no arts without sciences. The presence of the phrase "arts and sciences" in the name of the Academy is well explained by the semantics of the word "art", which included sciences, arts, and crafts.
What Was Said and What Jordan's «Getica» Kept Silent About
Authors: Буданова В.П.
Published: December 2023

На основе системного анализа мировосприятия человека и писателя VI в. Иордана в статье предпринята попытка осмыслить сумбурное изложение событий, композиционные приемы путаницы, авторских сокрытий и исключений в тексте «Getica». Предложен анализ творческой стратегии Иордана в применении особых средств организации текста. Подчеркивается, что доминирующая тема сочинения сопровождалась тенденциозностью, композиционными приемами авторских умолчаний и исключений. Главное внимание в статье обращено на лакуны и громкие умолчания «Getica». Высказано предположение, что Иордан осуществлял их умышлено и достаточно грамотно. Ставится вопрос о необходимости актуализировать внимание к исследованию лакун и умолчаний письменного источника во избежание его двусмысленной интерпретации и фальсификации истории.

Based on a systematic analysis of the worldview of a person and a writer of the VI century . The article attempts to comprehend the chaotic presentation of events, compositional techniques of confusion, author's concealments and exceptions in the text of «Getica». The analysis of Jordan's creative strategy in the application of special means of text organization is proposed. It is emphasized that the dominant theme of the composition was accompanied by tendentiousness, compositional techniques of author's omissions and exceptions. The main attention in the article is paid to the lacunae and loud omissions of «Getica». It is suggested that Jordan carried them out intentionally and quite competently. The question is raised about the need to update attention to the study of lacunae and omissions of a written source in order to avoid its ambiguous interpretation and falsification of history.
Formation of the Temporal Regime of the Modern Era on the Example of the British Educational Board Games of the XVII-XVIII Centuries
Authors: Шпак Г.В.
Published: December 2023

На протяжении раннего Нового времени в Англии изменяются темпоральные характеристики реальности. Представление об увядании мира и грядущем конце света заменяется доминированием идеи постепенного прогресса и движения к благоденствию и будущему процветанию. Концепция влияния планет и чисел на здоровье и жизнь людей также отходит на второй план. Традицию описаний, нацеленных на прогресс и приобретение новых знаний о мире, можно выявить в разных типах текстов – историях графств, утопических повествованиях и пр. В статье рассмотрены образовательные настольные игры, расцвет которых приходится в Англии на конец XVIII – первую половину XIX в. Символические числовые значения и восприятие движения по полю игры как духовного восхождения сменяется идеей соревнования, обучения и личностного прогресса. Географические образовательные игры знакомят с особенностями топографического устройства Британии и мира, вкладывая в его описание идеологические подтексты. Подобное мы можем увидеть как в исторических играх, так и в играх «в человеческую жизнь». На примере образовательных игр конца XVIII века показаны темпоральные характеристики, усваиваемые детьми и молодежью за счет иммерсивности игрового процесса, когда практически каждое явление, представленное в игре, требует от игрока определенного действия.

During the early modern period in England, the temporal characteristics of reality are being corrected. The idea of the gradual decline of the world and the coming end of the world is replaced by the dominance of the idea of gradual progress and movement towards future prosperity. The concept of the influence of planets and numbers on human health and life also faded into the background. The tradition of descriptions aimed at progress and the acquisition of new knowledge about the world can be identified in various types of sources - county histories, utopian narratives, etc. This article discusses a lesser-known type, which is educational board games, which flourished in England at the end of the 18th - first half of the 19th centuries. Symbolic numerical values and the perception of movement across the playing field as a spiritual ascent were replaced by the idea of competition, learning and personal progress. Geographic educational games introduced the features of the topographic structure of Britain and the world, putting ideological overtones into its description. We can see this both in historical games and in games “in human life”. Using the example of educational games of the late 18th century, the article shows the temporal characteristics acquired by children and youth due to the immersive nature of the game process, when almost every phenomenon presented in the game requires a certain action from the player.
Declassified Archival Documents about the Kharuzins Family
Authors: Керимова М.М. , Наумова О.Б.
Published: December 2023

Харузины – три брата (Михаил, Николай, Алексей) и сестра Вера Николаевна – известные ученые-этнографы, стоявшие у истоков становления и развития этнографической науки в России. Их жизнь и научная деятельность подробно изучена одним из авторов статьи. Однако перипетии послереволюционной жизни семьи крупного политического и научного деятеля Алексея Николаевича Харузина (1864–1932) до сих пор были известны лишь в самых общих чертах. На основе данных Центрального архива ФСБ РФ, а также воспоминаний невестки А.Н. Харузина И.Е. Огневой, авторы восстанавливают самый трагический период жизни А.Н. Харузина, его жены Н.В. Харузиной, их сына Всеволода (конец 1920-х – 1930-е гг.).

The Kharuzins – three brothers (Mikhail, Nikolai, Alexei) and sister Vera Nikolaevna – are famous ethnographers who stood at the origins of the formation and development of ethnographic science in Russia at the end of the 19th – the first third of the 20th c. Their lives and scientific activities have been studied in detail by one of the authors of the article. However, the circumstances of the post-revolutionary life of the family of Aleksey Nikolaevich Kharuzin (1864–1932), the only brother who survived the revolution, currently are known only in the most general terms. Based on the data of the Central Archive of the FSB of the Russian Federation and the personal archive of E.P. Kryukova, containing the memoirs of the A.N. Kharuzin’s daughter-in-law I.E. Ogneva and some documents of his family members, the authors restore the most tragic period of A.N. Kharuzin’s life, as well as the lifes of his wife N.V. Kharuzina and their son Vsevolod (i.e. the end of the 1920s–1930s).
Politics of Memory in Eastern Europe the Transformation of Narratives in "Old" and "New" Media
Authors: Игаева К.В.
Published: December 2023

Статья представляет собой рецензию на книгу «Исследование памяти и идентичность в России и Восточной Европе», вышедшую под редакцией Д. МакГлинн и Т. Джонс. В центре внимания находятся страны, в которых прошлое сильно политизировано, – Сербию, Украину, Польшу, Россию и страны Балтии. Распространяемые (прежде всего через медиа) в этих странах исторические нарративы предполагают ревизию представлений не только о прошлом, но и о будущем. Авторы предлагают рассматривать память как диалог с прошлым и с различными социальными группами, чьи версии исторической политики широко тиражируются современными медиа.

The article is a review of the book "Memory Research and Identity in Russia and Eastern Europe", edited by D. McGlynn and T. Jones. Its focus is on countries where the past is highly politicized, including historical narratives in Serbia, Ukraine, Poland, Russia, and the Baltic States, which involve a revision of ideas not only about the past, but also about the future in this region and beyond. The authors propose to consider memory as a dialogue with the past and with various social groups, whose versions of historical politics are widely replicated by contemporary media.
About One Page from the Subject Area "History of Ideas"
Authors: Задорожнюк И.Е. , Задорожнюк Э.Г.
Published: December 2023

Авторы анализируют творческое наследие историка литературы Д.П. Святополк-Мирского. Оно трактуется как продолжение отечественной традиции, заложенной в трехтомных трудах по истории идей Иванова-Разумника, Г.В. Плеханова и Т.Г. Ма-сарика. Подчеркивается новаторский подход Д.П. Святополк-Мирского: привлечение к анализу истории идей инструментария психологии искусства, достижений представителей формальной школы и Общества изучения поэтического языка (ОПОЯЗ), зарождавшейся в то время философии науки.

The authors analyze the creative heritage of the literary historian D.P. Svyatopolk-Mirsky. It is interpreted as a continuation of the domestic tradition laid down in three-volume works on the history of the ideas of Ivanov-Razumnik, G.V. Plekhanov and T.G. Masaryk. His innovative approach is emphasized: attracting to the analysis of the history of the ideas of the toolkit of the psychology of art, the achievements of representatives of the formal school and the Society for the Study of the Poetic Language (OPOYAZ), the philosophy of science that was emerging at that time.
Does the Play Innovation Leading Project respect children’s rights?
Authors:   Korean Council For Children's Rights, Kim Youngmi , Hyun Anna , An Jiun , Lee Eunju
Published: December 2023

Objectives: This study aims to analyze ‘the Play Innovation Leading Project’ based on the perspective of children’s rights. In addition, the study draws implications for the policy direction for expanding ‘the Play Innovation Leading Project’ and promoting the right to play. Methods: This study developed an analysis framework from the perspective of children’s rights based on the General Principles, Related Articles and General Comment of the UN Convention on the Rights of the Child. Using the analysis framework, the contents of the first year of the ‘Play Innovation Leading Project’ selected in 2020 were analyzed.
Results: The main results are as follows. First, equal opportunities to play were provided to all elementary school students regardless of the income level. However, infant and preschooler with a high desire to play were excluded from service targets, and conditions for guaranteeing for children with special needs such as disabilities for migration backgrounds were not established. Second, there was no legal basis for the continuation and expansion of the project, and the budget system using the community service investment project platform did not conform the nature of ‘child-centered’ play. Third, there were problems such as difficulty in securing the play space, placement and operation of play facilities that did not consider the age and characteristics of children, and the lack of safety measures. Fourth, although some leading regions induced children’s participation in their play planning and play process, there were differences in listening to children’s opinions and guaranteeing opportunities to participate according to the capabilities of service providers.
Conclusions: Based on the analysis results, this study suggests policy measures to expand ‘the Play Innovation Leading Region Project’ and to promote the right to play.
Examining the predictors on welfare receipt among youth in out-of-home care: Using administrative data
Authors:   Korean Council For Children's Rights, Kim Jisun , Joo Young Sun
Published: December 2023

Objectives: This study aims to examine the predictors on welfare receipt among youth in out-of-home care (youth preparing for independence) by using administrative data including the Social Welfare Facilities Information System and the Social Security Information System. Methods: The study analyzed 12,280 youth in out-of-home care, and the logistic regression models using Stata 15.0 was employed to examine the associations between sociodemographic characteristics, out-of-home care characteristics, and welfare receipt including self-reliance allowance, Child Development Account (Didim Seed Account), and the National Basic Livelihood Security benefits.
Results: First, the study found that the younger youth, who stayed for a longer period at out-of-home care, youth in foster care, youth with higher educational level, and unemployed youth were less likely to receive self-reliance allowance when compared to older, youth who stayed for a shorter period at out-of-home care, youth in childcare facilities, youth with lower education, and employed youth. Second, female, the older, youth who stayed shorter period at out-of-home care, youth in foster care, and youth with higher education level were less likely to open the Child Development Account when compared to male, the younger, youth who stayed for a longer period at out-of-home care, youth in childcare facilities and group homes, and youth with lower educational level. Third, male, the older, youth who stayed for a shorter period at out-of-home care, youth in foster care, youth with higher educational level, and employed youth were less likely to receive the Livelihood Benefits including medical and housing assistance when compared to female, the younger, youth who stayed for a longer period at out-of-home care, youth in childcare facilities, youth with lower educational level, and unemployed youth.
Conclusions: Based on the findings, the study suggests implications for promoting the use of welfare receipt among youth in out-of-home care.
Mediating effects of parenting efficacy and behavior in the relationship between caregivers’ parenting stress and children’s behavioral problems in residential care homes
Authors:   Korean Council For Children's Rights, Oh Hye Jeong , Lim Hee Soo
Published: December 2023

Objectives: The purpose of this study is to examine the mediating effects of parenting efficacy and behavior in the relationship between caregivers’ parenting stress and children’s behavioral problems in children’s residential care homes.
Methods: The study collected data from 209 caregivers of children’s residential care homes. The study analyzed descriptive statistics and correlation among variables through SPSS (ver. 26.0), and verified mediation effects by using the model 4 of PROCESS Macro (ver. 3.5). Results: First, correlations among parenting stress, efficacy and behavior, and children’s behavioral problem were statistically significant. Second, parenting behavior was proven to have a mediating effect in the relationship between caregivers’ parenting stress and children’s behavioral problems.
Conclusions: Based on above results, the study discussed how to relieve parenting stress and reinforce positive parenting behaviors of caregivers for the healthy psychological and social-emotional development of children in child care facilities, and presented suggestions for follow-up studies.
The effect of academic stress in childhood on academic failure tolerance: The moderating effect of father-child attachment
Authors:   Korean Council For Children's Rights, Kang Min Ji , Kang Hyun Ah
Published: December 2023

Objectives: The purpose of this study is to investigate the effect of childhood academic stress on academic failure tolerance, and to examine the moderating effect of father-child attachment in this relationship.
Methods: We analyzed the data of 1,145 children who participated in the 12th wave survey for the Korean Children’s Panel Study, which was established by the Childcare Policy Research Institute. Using Process macro (Hayes, 2013), multiple regression analysis was conducted. Results: Childhood academic stress showed a negative impact on academic failure tolerance. In addition, the moderating effect of father-child attachment was found. The regression lines for each group classified according to the level of father-child attachment showed different slopes, indicating the higher the attachment, the smaller negative effect of academic stress. Conclusions: The results confirm a moderating effect of father-child attachment, which mitigates the negative impact of childhood academic stress on academic failure tolerance. Based on the results of this study, policy and practical implications for promoting father-child attachment formation are discussed.
Quantum chaos in a harmonic waveguide with scatterers
Authors: Yurovsky Vladimir
Published: December 2023

A set of zero-range scatterers along its axis lifts the integrability of a harmonic waveguide. Effective solution of the Schrödinger equation for this model is possible due to the separable nature of the scatterers and millions of eigenstates can be calculated using modest computational resources. Integrability-chaos transition can be explored as the model chaoticity increases with the number of scatterers and their strengths. The regime of complete quantum chaos and eigenstate thermalization can be approached with 32 scatterers. This is confirmed by properties of energy spectra, the inverse participation ratio, and fluctuations of observable expectation values.
Simbol dan Makna Berkain dalam Kalangan Pecinta Wastra
Authors: Ramadhanty Anissa , Chandra Nina , Ardianto Eka , Budiman Arief
Published: December 2023

Wastra is a piece of cloth that is produced in a traditional way. Wastra comes in different types, from the weaved cloth such as ulos, songket, jumputan, and batik cloth. Berkain is an activity in which an individual incorporates wastra in their day-to-day outfit. Different from how wastra was used back in the days, berkain integrates modern clothing with wastra. The purpose of this study is to understand the symbol and meaning ‘berkain’ of wastra lovers. Theories of culture, symbols, and meaning are used by the researcher as a tool to analyze the data. Qualitative research will be used with study case concepts. The data collection will be done through interview, observation, and netnography with informants. The result shows that there are similarities in culture in berkain activity that has been obtained through the ABC culture theory. The symbol that tends to be felt are Culture, Fight, and Identity. The meaning that surfaced in the berkain activity are fight and respect for the culture.
The Preferences of Consumers’ Halal Products in Cosmetics Market
Authors: Mahliza Febrina , Prasetya Prita , Kuswibowo Christian
Published: December 2023

The various challenges faced by local industries have limited them performance in serving the halal market. This study aims to review consumer challenges and concerns, especially in consuming halal cosmetics. The development of a research model related to the determinants of halal products in the context of halal cosmetics products are important as a reinforcement of previous research. Therefore, this study aims to review the determinants of consumers in consuming halal products. Surveys through questionnaires are conducted by researchers to collect respondents to answer and the collected data is analyzed by quantitative research methods. A total of 150 questionnaires were coded and analyzed by statistical techniques. This research contributes to an understanding of how consumers view the sustainability of the consumption of Halal cosmetic products. Based on the results of the study, religiosity had no significant effect on behavior. Halal knowledge has no significant effect on behavior. Attitude has a positive and significant effect on behavior. Lifestyle has a positive and significant effect on behavior.
Pengaruh Flow Experience dan Parasocial Interaction pada Dorongan Pembelian Impulsif di Live Streaming Commerce
Authors: Agatha Chindy , Emilio Sean , Rahman Fathony
Published: December 2023

Live streaming commerce is one of the results of technological development which is able to make human’s online shopping experience similar to offline shopping experience. Previous studiestend to discuss the factors that influence impulsive buying from one perspective, either flow experience or parasocial interaction. Therefore, this study aims to fill the gap by examining the influenceof flow experience and parasocial interaction towards the consumers’ urge to buy impulsively in live streaming commerce in Java Island through the Stimulus-Organism-Response (S-O-R) theory. The analysis of Structural Equation Modeling (SEM) was conducted on a sample of 409 respondents collected through convenience sampling technique who filled out an online questionnaire. This study resulted in three main findings: (a) platform design, time pressure, and personalized recommendation positively influence flow experience, (b) similarity, expertise, and likability positively influence parasocial interaction, and (c) parasocial interaction positively influence urge to buy impulsively in the context of live streaming commerce in Java Island.
Recovery of the response function of a flexible membrane to a volume oscillation using double digital fringe projection technique and frequency filtering
Authors: Uribe López Ubaldo , Olivares Vera Daniel Arturo , Gutiérrez Hernández David Asael , Casillas Rodríguez Francisco Javier , Ibarra Sánchez José de Jesús
Published: December 2023

This study presents a method to recover the response function of a flexible latex membrane undergoing a dynamic event by volume oscillation using Double Digital Fringe Projection to measure the profile of the surface in a sequence of frames. By applying a frequency filter to the interference pattern, a moiré pattern was obtained. Optical phase retrieval from individual frames was performed using the Isotropic Quadrature Transform Algorithm. This fringe projection technique enables full-field measurements, including edges where other techniques could not perform due to shadows generated by the tilt angle. The procedure was devised as a non-contact system to retrieve the deformation function of a flexible surface, enhancing a valuable aspect of the methodology. The results demonstrate successful recovery of the membrane response function, highlighting the relevance of the method for accurate deformation measurements using a straightforward system. These outcomes provide significant value for the development of precise measurement techniques for flexible structures in engineering applications, such as soft robotics, biomedical devices, and material science.
Early crop yield prediction for agricultural drought monitoring using drought indices, remote sensing, and machine learning techniques
Authors: Pandya Parthsarthi , Gontia Narendra Kumar
Published: December 2023

The unpredictability of crop yield due to severe weather events such as drought and extreme heat continues to be a key worry. The present study evaluated six meteorological and three Landsat satellite-based vegetation drought indices from 1986 to 2019 in the drought-prone-semi-arid Saurashtra region of Gujarat (India). Cotton and groundnut crop yield prediction models were developed using multiple linear regression (MLR), artificial neural network with MLP, and random forest (RF). The models performed crop yield estimation at two timescales, i.e., 75 days after sowing and 105 days after sowing. The standardized precipitation evapotranspiration index/reconnaissance drought index among meteorological drought indices, normalized difference vegetation anomaly index/vegetation condition index, and normalized difference water index anomaly were chosen as best highest correlations with crop yields. The RF-based models were found most efficient in predicting the cotton and groundnut yield of Saurashtra with R2 ranging from 0.77 to 0.92, Nash–Sutcliffe efficiency ranging from 71 to 90%, and root-mean-square error ranging from 80 to 133 kg/ha for cotton and 299 to 453 kg/ha for groundnut. This study demonstrated the method for making several decisions based on early crop yield prediction including timely drought mitigation measures.
Ecotoxicological and human health risk assessment of triclosan antibacterial agent from municipal wastewater treatment plants
Authors: Ebrahimi Afshin , Ebrahimpour Karim , Mohammadi Farzaneh , Moazeni Malihe
Published: December 2023

In this study, the occurrence and environmental risks related to triclosan (TCS) in the two wastewater treatment plants (WWTPs) were investigated in Isfahan, Iran. Influent and effluent samples were collected and analyzed by dispersive liquid–liquid microextraction (DLLME)–GC–MS method with derivatization. Moreover, the risk of TCS exposure was conducted for aquatic organisms (algae, crustaceans, and fishes) and humans (males and females). TCS mean concentrations in influent and effluent of WWTPs were in the range of 3.70–52.99 and 0.83–1.09 μg/L, respectively. There were also no differences in the quantity of TCS and physicochemical parameters among the two WWTPs. The mean risk quotient (RQ) for TCS was higher than 1 (in algae) with dilution factors (DFs) equal to 1 in WWTP1. Moreover, the RQ value was higher than 1 for humans based on the reference dose of MDH (RFDMDH) in WWTP1. Furthermore, TCS concentration in wastewater effluent was the influential factor in varying the risk of TCS exposure. The results of the present study showed the risk of TCS exposure from the discharge of effluent of WWTP1 was higher than WWTP2. Moreover, the results of this study may be suitable for promoting WWTP processes to completely remove micropollutants.
Removal of estrogens from primary settled sewage by repeated culture of Selenastrum capricornutum
Authors: Wang Ping , Luan Jianwen , Luo Lijuan
Published: December 2023

Biotransformation and biodegradation of estrogenic compounds by bacteria and even fungi have been reported widely, but the role of microalgae in the elimination of estrogens from municipal wastewater treatment plants and their interaction with other microorganisms in wastewater are not clear. This study reported the feasibility of repeatedly removing a mixture of 17β-estradiol (E2) and 17α-ethinylestradiol (EE2), each was 100 μg L−1, from primary settled municipal sewage by Selenastrum capricornutum (SC), a ubiquitous microalga, in four exposure cycles, each lasted 7 days, and how they interacted with the microbial consortium in sewage. Mixed estrogen in sewage stimulated the growth of SC, and the indigenous microorganisms in sewage also affected the microalgal growth. The indigenous microorganisms, particularly bacteria, could easily remove E2 (with 99.5% removal), so the role of SC was insignificant. On the contrary, EE2 was difficult to remove by indigenous microorganisms but the removal was significantly enhanced by SC, with almost all spiked EE2 being removed, even at the end of the fourth cycle (with 99.0% removal). These results indicated that SC, together with the indigenous microorganisms in wastewater, could be repeatedly used for simultaneous removal of E2 and EE2 from municipal sewage.
Historia de Santa Marta y el Magdalena Grande
Authors: Elías-Caro Jorge Enrique , Viloria De la Hoz Joaquín , Sáenz Samper Juanita , Langebaek Rueda Carl Henrik , Giraldo Santiago , Benei Véronique , Bermúdez Venancio Aramis , Borrego Plá María del Carmen , Vidal Ortega Antonino , Serrano Álvarez José Manuel , Sánchez Mejía Hugues , Polo Acuña José Trinidad , Sourdis Nájera Adelaida , Laurent Muriel , Saether Steinar A. , Santos Delgado Adriana , Renán Rodríguez William , Rey Sinning Edgar , Bucheli Marcelo , LeGrand Catherine C. , Meisel Roca Adolfo , Bayona Velásquez Etna Mercedes , Aguilera Díaz María Modesta , Latorre Iglesias Edimer , Herrera Delghams Leonardo
Published: December 2023

La historia Santa Marta y su territorio de influencia empieza antes del Descubrimiento, la Conquista y la Colonización española, con la presencia de varios pueblos indígenas, siendo los taironas el de mayor desarrollo cultural. Muchos de los temas históricos o económicos de esta provincia carecen de una adecuada profundización, por lo que surgió la necesidad de compilar una obra que abarcara un intervalo de tiempo más amplio y que profundizará en aquellos tópicos que han sido poco investigados por la historiografía existente. La obra se compone de dos tomos y veintitrés capítulos escritos por veinticinco autores, entre los que se cuentan dieciocho colombianos y siete extranjeros. Con la publicación de este libro se ha querido honrar a Santa Marta, que prontamente cumplirá quinientos años de su fundación. Por este motivo, más que un libro dedicado al trasegar histórico de este territorio, resulta también un homenaje a este espacio geográfico. La obra enriquecerá el acervo bibliográfico de la Región Caribe y el país. Igualmente, se espera que esta compilación se convierta en una consulta obligada para los especialistas y para los ciudadanos del común que desean conocer sobre la historia de la antigua provincia samaria. También es una invitación para que los jóvenes profesionales de las ciencias sociales y humanas del Caribe colombiano, vuelquen su mirada hacia este territorio que requiere más estudios y análisis rigurosos. Con esta obra se busca comprender más y mejor las dinámicas culturales, sociales, económicas y políticas de la antigua provincia de Santa Marta.
Desafios para a implementação do repositório institucional do Instituto Federal do Maranhão
Authors: Cadete Alisson Pereira , Farias Gabriela Belmont de , Farias Maria Giovanna Guedes
Published: December 2023

Esta pesquisa tem como objetivo apresentar os principais desafios enfrentados pelos bibliotecários do Instituto Federal de Educação do Maranhão (IFMA) para fomentar a implantação do repositório institucional. O referido estudo fundamenta-se em abordagens que favoreceram o desenvolvimento das iniciativas de democratização da comunicação científica por meio do acesso aberto no Brasil, em torno da implementação de ferramentas tecnológicas de divulgação científica, caso dos repositórios institucionais. A pesquisa caracteriza-se como mista, do tipo descritiva e exploratória e se deu a partir da aplicação de um questionário online, construído baseado em estudos já realizados que tiveram objetivos semelhantes em relação à implantação dos repositórios institucionais em instituições da mesma rede. O questionário foi enviado por e-mail para as 23 bibliotecas ativas do IFMA em funcionamento, dos quais 12 foram respondidos. Os dados foram analisados de forma quantitativa e qualitativa, evidenciando as principais dificuldades que desfavorecem até então a implementação do repositório institucional. Concluiu-se, que apesar das iniciativas realizadas pelos bibliotecários para iniciar o processo de implementação do repositório, algumas questões foram evidenciadas e caracterizadas como relevantes entraves nesse processo de implementação, tais como: pouco conhecimento técnico sobre os processos de implementação do repositório; ausência em priorizar o desenvolvimento das ações de implementação do repositório somada à falta de políticas institucionais para depósito compulsório da produção acadêmica, bem como a baixa interação dos bibliotecários com a equipe de Tecnologia da Informação, configurando-se como principais dificuldades para o pleno desenvolvimento do processo de implantação do repositório institucional.
CMMRD-associated embryonic rhabdomyosarcoma in a child. Clinical case with literature review
Authors: Rodina A. D. , Polyakov V. G. , Krylov A. S. , Semenova V. V. , Kozlova V. M. , Nasedkina T. V. , Kashanina A. L. , Kozlov N. A. , Migunova V. V. , Gorbunova T. V.
Published: December 2023

Introduction. Hereditary disorders in the DNA repair system can lead to the development of malignant neoplasms in childhood. DNA constitutional mismatch repair deficiency syndrome (CMMRD) is a very rare genetic autosomal recessive disorder caused by homozygous mutations in one of the four mismatch repair genes (MLH1, MSH2, MSH6, and PMS2). The frequency of occurrence is 0.0000001 of the adult and child population. For now about 150 observations have been published in the world literature. The prognosis for CMMRD syndrome is extremely unfavorable. The spectrum of tumors that make up the CMMRD syndrome is very wide, and includes mainly malignant brain tumors, tumors of the digestive tract, hematological malignancies, embryonic tumors, all of which develop in childhood.

The purpose of the study is to report a case of CMMRD-associated embryonic rhabdomyosarcoma in a 3-year-old child.

Conclusions. A review of the literature and the clinical case we have described show that rhabdomyosarcoma belongs to the tumor spectrum of the CMMRD syndrome. An immunohistochemical study revealed an isolated loss of PMS2 gene expression. Taking into account the clinical course of the CMMRD syndrome, a thorough study of the family history in patients with rhabdomyosarcoma is recommended, as well as a molecular genetic study, including the search for germinal mutations in genes in the DNA repair system and the assessment of microsatellite instability in the material of the tumor tissue. The clinical symptoms of CMMRD syndrome are nonspecific and depend on the morphological variant of the primary tumor. Distinctive molecular genetic features of this syndrome are: homozygous mutations with loss of function of the germline genes of the MMR system (mismatch repair) (MLH1, MSH2, MSH6 or PMS2).
Aposentadoria docente em xeque
Authors: Souza Revan Araújo de , Ferreira Norma-Iracema de Barros , Brito Raimundo de Lima
Published: December 2023

Pesquisa tipo exploratória, qualitativa, documental e empírica, com aporte da Hermenêutica-dialética e de entrevista. O problema indaga: como a lógica desresponsabilizadora do Estado influencia a percepção de (des)proteção na velhice em docentes da Educação Superior que atingiram idade e tempo de contribuição para aposentadoria, mas continuam trabalhando? O objetivo consiste em caracterizar a crise do Estado capitalista, suas repercussões nas reformas neoliberais que subverteram o caráter protetor da política de seguridade social e os reflexos na educação, por intermédio da adesão de 17 docentes ao Abono de Permanência, numa IFES da Região Norte brasileira. Resultados apontam que: a percepção de desamparo na velhice emerge de perdas e eventuais infortúnios na aposentadoria; então os entrevistados minoram tais dissabores adotando estilo de vida modesto, fazendo reservas financeiras ou projetam retorno ao trabalho, após aposentadoria. Assim, continuar no trabalho, usufruindo de Abono de Permanência, representa a última instância objetiva de proteção do Estado.
Alkaloids as Promising Agents for the Management of Insulin Resistance:
A Review
Authors: Amssayef Ayoub , Eddouks Mohamed
Published: December 2023

Background:

Insulin resistance is one of the main factors that lead to the development of type 2 diabetes
mellitus (T2DM). The effect of alkaloids on insulin resistance has been extensively examined according
to multiple scientific researches.

Objective:

In this work, we aimed to summarize the interesting results from preclinical and clinical studies that
assessed the effects of natural alkaloids (berberine, nigelladine A, piperine, trigonelline, capsaicin, nuciferine,
evodiamine, mahanine, and magnoflorine) on impaired insulin sensitivity and worsened insulin resistance,
which play a pivotal role in the pathogenesis of type 2 diabetes.

Methods:

In the current review, PubMed, ScienceDirect, Springer, and Google Scholar databases were used.
The inclusion criteria were based on the following keywords and phrases: insulin sensitivity, insulin resistance,
alkaloids and insulin resistance, alkaloids and type 2 diabetes, mechanisms of action, and alkaloids.

Results:

The outcomes reported in this review demonstrated that the selected alkaloids increased insulin sensitivity
and reduced insulin resistance in vitro and in vivo evidence, as well as in clinical trials, through improving
insulin-signaling transduction mainly in hepatocytes, myocytes, and adipocytes, both at cellular and molecular
levels. Insulin signaling components (InsR, IRS-1, PI3K, Akt, etc.), protein kinases and phosphatases, receptors,
ion channels, cytokines, adipokines, and microRNAs, are influenced by alkaloids at transcriptional
and translational levels, also in terms of function (activity and/or phosphorylation). Multiple perturbations associated
with insulin resistance, such as ectopic lipid accumulation, inflammation, ER stress, oxidative stress,
mitochondrial dysfunction, gut microbiota dysbiosis, and β-cell failure, are reversed after treatment with alkaloids.
Furthermore, various indices and tests are employed to assess insulin resistance, including the Matsuda
index, insulin sensitivity index (ISI), oral glucose tolerance test (OGTT), and insulin tolerance test (ITT),
which are all enhanced by alkaloids. These improvements extend to fasting blood glucose, fasting insulin, and
HbA1c levels as well. Additionally, the Homeostasis Model Assessment of Insulin Resistance (HOMA-IR)
and the Homeostasis Model Assessment of β-cell function (HOMA-β) are recognized as robust markers of insulin
sensitivity and β-cell function, and it is noteworthy that alkaloids also lead to improvements in these two
markers.

Conclusion:

Based on the findings of the current review, alkaloids may serve as both preventive and curative
agents for metabolic disorders, specifically type 2 diabetes. Nonetheless, there is an urgent need for additional
clinical trials to explore the potential benefits of alkaloids in both healthy individuals and those with type 2 diabetes.
Additionally, it is crucial to assess any possible side effects and interactions with antidiabetic drugs.