bluuebunny/crossref_metadata_2025 huggingface dataset:
SALAR AERATSIYA STANSIYASI OQAVA SUVLARINI ULTRABINAFSHA NURLANISHLAR YORDAMIDA ZARARSIZLANTIRISH
Authors: Nasrilla IBRAGIMOV  , Elmurod EGAMBERDIEV  , Dilnoza ABDULLAEVA  , Raxima ISANOVA,  , Axrorbek AGZAMQULOV
Published: June 2024

Maqolada aeratsiya stansiyasining (O‘zbekiston Respublikasi) oqava suvlarini mexanik va biologik tozalashdan so‘ng,fizikaviy usulda ultrabinafsha nurlanishlar yordamida zararsizlantirish bo‘yicha optimal parametrlarni tanlash  yuzasidan olib borilgan  ilmiy tadqiqot ishlari   masalalari ko‘rilgan ,xozirgi kunda esa oqava suvlarni suyuq gaz xoldagi xlor birikmasi bilan zararsizlatirildmoqda. Xozirda ultrabinafsha nurlanishlar yordamida oqava suvlarni zararsizlantirish Xitoyda,Rossiya Federatsiyasida, AQSh va Janubiy Koreya davlatlarida keng qamrovda qo‘llanilib kelinmoqda.
МЕТОДИКА ГЕОЛОГО-ЭКОНОМИЧЕСКОЙ ОЦЕНКИ ПРИРОДНЫХ УСЛОВИЙ ОБЪЕКТОВ ОСВОЕНИЯ
Authors: Бахтиер ИСАКДЖАНОВ,
Published: June 2024

Методика геолого-экономической оценки природных условий включает: разработку основных принципов и положений оценки сложности природных условий районов комплексного освоения; обоснование и выбор значимых компонентов природных условий; применение количественных методов представления компонентов условий, математическое моделирование геологических параметров компонентов условий и экономических затрат на инженерную подготовку; расчет интегрального показателя и установление его связи с суммарной стоимостью различных мероприятий по подготовке территории для освоения; проведение геолого-экономического районирования территории, непосредственно оценивающая стоимость мероприятий, определяемых геологическими условиями.
RuO2 NANOZARRACHALARINING LEGIRLANGAN SILIKAT SHISHADAGI HOLATI
Authors: Gulmurza ABDURAXMONOV  , Muhriddin TURSUNOV  , Avazbek DEXQONOV
Published: June 2024

Ushbu maqolada 700 K dan yuqori temperaturada Legirlangan slikat shisha (LSSh) ning solishtirma qarshiligi ρ va termoEYuK koeffitsienti S keskin oshib, maksimumga chiqadi va keyin kamayadi. ρ va S ning bunday o’zgarishlari ligaturaning kristall qoldiqlaridagi struktura o’tishlari oqibati bo’lishi mumkinligi taxmin qilindi. Mazkur ishning maqsadi - bu taxminni tajribada sinash. Buning uchun ligaturaning                va LSSh ning tuzilishi 300, 773, 993 va 1123 K  temperaturalarda rentgen nurlari difraksiyasi yordamida o’rganildi va olingan natijalar tahlil qilindi.
D18 VA D18-C6CH DONOR POLIMERLARNING OPTIK VA FOTOVOLTAIK XUSUSIYATLARI
Authors: Aziz SAPARBAYEV  , Abror TURG’UNBOEV  , Farid RO’ZIYEV  , Muhibjon IMOMOV  , Sanobar REYMBAYEVA  , Hamida IBRAGIMOVA
Published: June 2024

Organik quyosh elementlari (OQE) muqobil energiya turlaridan biri bo‘lib, global energetika inqirozini bartaraf etish uchun ushbu sohada jadal tadqiqotlar o’tkazilmoqda. OQElar arzonligi, moslashuvchanligi, yengilligi va eritmani qayta ishlash imkoni mavjudligi bilan Si-asosidagi noorganik quyosh elementlaridan afzalroq deb qaralmoqda. Xususan fulleren bo’lmagan polimer asosli OQElar o’zining barqarorligi hamda samarali energiya o’zgartirish samaradorligi (EO’S) bilan yaxshi natijalar ko’rsatmoqda. Ushbu maqolada fulleren bo’lmagan D18:L8-Bo va D18-C6Ch:L8-Bo asosli OQElarining optik va fotovoltaik parametrlari tadqiq qilindi.
ANISOTROPY OF ACOUSTO OPTICAL PROPERTIES IN PbMoO4 CRYSTALS WITH NEODYMIUM ADMIXTURE
Authors: Mохинур ЭЛБОЕВА  , Фархад АХМЕДЖАНОВ
Published: June 2024

The anisotropy of the efficiency of Bragg diffraction of light by longitudinal acoustic waves propagating along the [100] and [001] directions in pure and neodymium-doped lead molybdate crystals has been studied. The Nd impurity concentration was approximately 0.2 mol%. The Dixon method was used to determine the effective photoelasticity constants (peff) and the corresponding acousto-optical quality factors (M2) for various directions of polarization of incident light. The velocity of acoustic waves was determined by measurement the angle of Bragg diffraction on these waves. It is shown that in pure and doped lead molybdate crystals there is a dependence of the peff and M2on the direction of propagation of the acoustic wave and the polarization of the incident light.
The Effect of Acid Treatment Time, Particle Size, and Synthesis Method on the Physical and Mechanical Properties of Dental Materials Produced from Flue Gas Desulfurization (FGD) Gypsum
Authors: Motong Noppawan , Ukaew Suchada , Tianboot Kanokporn , Mahachon Kanitta
Published: June 2024

FGD gypsum, a byproduct of coal-fired power plants, is readily available and relatively inexpensive, which makes it an ideal material for a variety of applications. This study considered the use of FGD gypsum as a substitute for natural gypsum in dental materials. The goal of this research was to investigate how acid treatment time, particle size, and the synthesis method impact the physical and mechanical properties of dental materials to be used in a dental study model for training in dental sciences, and for casting a gypsum model after the removal of the impression material from the patient's mouth. The study used various sulfuric acid treatment times (15, 30, and 60 min), particle sizes (less than 0.1 mm, 0.1-0.35 mm, and 0.4-0.45 mm), and synthesis methods (Method A for dental plaster and Method B for dental stone). From the results, an acid treatment time of 15 min was sufficient for removing impurities from the FGD gypsum while enhancing the compressive strength. The smaller particles provided higher compressive strength than the larger particles. FGD gypsum became lighter in color when treated with sulfuric acid, and the crystal structure had a rough and porous surface. The synthesis methods had a significant influence on the physical properties of dental gypsum. The increased alpha calcium sulfate hemihydrate (α-HH) phase content resulted in improved compressive strength. The gypsum synthesized using Method B exhibited the highest compressive strength due to the presence of the α-HH phase of 65.9%. While gypsum synthesized using Method A contained a α-HH phase of 58.9%. For further study, once the suitable conditions for synthesizing gypsum that meet the compressive strength requirements of the ISO standard for dental materials are achieved, there will be ongoing research and development to improve various properties. Additionally, practical applications will be considered, such as using it in conjunction with modern techniques such as 3D printing instead of traditional die-casting methods.
Conservation Status of the Last Himalayan Cattle Breed of Bhutan
Authors: Wangmo Chimi , Norbu Nima , Tenzin Jigme
Published: June 2024

Siri cattle (Bos indicus) are native to the mid-hills of the Himalayan region and are reared for milk, draught power, manure, and meat. In this study, we quantified Siri population trends in Bhutan over the last 11 years, evaluated factors threatening their survival, and analyzed conservation efforts. Also, necessary action plans to strengthen its sustainable management were identified. Data were collected from the participants through a stratified random sampling according to the role of each respondent: farmers (n=25), service providers or extension officials (n=172), and policymakers (n=29). Results showed that the Siri population is expected to decline over the next 10 years (2030) to 60,000 from the existing 86492. Several factors contribute to a population decline, including reduced economic returns, government incentives for stall-feeding with a small number of high-yielding cows, and a farm labor shortage. More than 80% of service providers and policymakers supported the idea of the conservation of native breeds owing to their usefulness as draught animals and in providing income to marginalized farmers. They also supported the idea of having a rigorous government policy to conserve the Siri cattle population. Some conservation measures, such as ex-situ and in-situ conservation of genetic materials, have been initiated; however, this seems inadequate to reverse the rapid decline of the Siri cattle population. This is exacerbated by the lack of coherent policies and strategies, which limits conservation efforts. Therefore, it is recommended to have a robust and specific policy for Siri cattle conservation and priority actions in Bhutan.
Mathematical Modeling of Energy Consumption and Mass Transfer for Drying of Phimai Mee by Hot Air
Authors: Kampagdee Mongkolchai , Wangkuanklang Virat , Amattirat Nopparat
Published: June 2024

The purpose of this research was to study a drying process that can help conserve Phimai Mee (Korat’s stir-fried noodles) over a long preservation period. In the drying process tests of Phimai Mee, Air flow rates of 1.5, 2.0 and 2.5 m/s at temperature of 40°C, 50°C, and 60°C were applied. In the assessment of the drying process of Phimai Mee. Five distinct mathematical models in a computational setting. the drying characteristics of Phimai Mee, parameters from an mathematical models were used a computational setting. The drying characteristics of Phimai Mee were comprehensively analysed. Empirical formulae parameters were included in the nonlinear regression analysis of collected moisture ratio data. In evaluating the models for their predictive accuracy in the drying kinetics of Phimai Mee, the Demir et al. model was identified as the most precise. Additionally, The moisture diffusion in the Phimai Mee when tested according to Fick’s law, varied between 0.03499 and 0.11816 m2/s.The results also showed that the drying process’s moisture diffusion is temperature-dependent, which the Arrhenius equation, showing an activation energy range from 7.46 to 8.82 kJ/mol in all the conditions examined.
Accuracy of Extraoral Bitewing Compared with Histopathology in Proximal Caries Detection of Primary Molar Teeth
Authors: Khummoon Piyanut , Tohnak Sirilawan , Deepho Chutamas , Worasakwutiphong Saran , Naivikul Supanya
Published: June 2024

An accurate diagnosis of dental caries leads to a suitable treatment plan and prevents premature loss of primary teeth. Intraoral bitewing radiography helps caries determination but has limitations in pediatric patients with severe gag reflexes while the extraoral bitewing radiograph resolved the patients who refused to undergo intraoral radiographs. The research objective was to compare the accuracy of extraoral bitewing radiography and the gold standard histopathological examination for proximal caries detection in the primary molars. Twenty-four extracted primary molars with and without proximal caries were divided into three groups and arranged in the mimetic alveolar sockets of a 3D-printed skull and mandible. Two observers evaluated extraoral bitewing images separately twice at one-week intervals. The weighted kappa coefficients showed excellent intra-observer and inter-observer agreements between each session of the extraoral bitewing radiographic assessments. The Mann-Whitney U test showed no difference between the radiographic grading scores of extraoral bitewing images and the gold standard. The sensitivity, positive predictive value (PPV), negative predictive value (NPV), and the area under the receiver operating characteristic (ROC) curve in cavitated carious lesions were higher than in non-cavitated carious lesions. In conclusion, extraoral bitewing is an alternative radiography for pediatric patients who are either uncooperative or intolerant to intraoral radiography.
APPLICATION OF THE VARK MODEL TO THE SUBJECT OF GEOGRAPHY IN THE LEARNING PROCESS
Authors: Həsənli Nərmin
Published: June 2024

A learning model is a particular application or field of learning theory. As a result, learning models are more concrete and practical. It usually incorporates clear theoretical principles or a structured framework for designing and delivering learning experiences. That is, learning models provide useful guidelines and strategies for educators in a variety of different fields.
ISSUES OF ORGANIZATION OF PSYCHOLOGICAL SERVICE IN SCHOOL
Authors: Bəylərov Elxan
Published: June 2024

The main task of the psychological service at the school is to study the individual-psychological characteristics of the intellectual and personal emotional development of students who encounter difficulties in education, to provide a social-psychological environment in classes and groups. In the article, the quality of the psychologist's work in the school, in order to organize a favorable psychological development environment, together with the management, teachers, students and parents was studied.
LA PANDEMIA COVID-19 ¿QUÉ NOS DEJÓ EN EDUCACIÓN MÉDICA?
Authors: ROESSLER BONZI EMILIO
Published: June 2024

The pandemic forced changes in the way we teach. The effect of these on medical training has not yet been measured. Some of these changes are positive, such as tele learning, and can be incorporated into post-pandemic teaching. Tele teaching is a complementary tool for teaching, useful if its use is limited. There are no measurements to solidly substantiate the above, they are only opinions of experts, teachers, and students. Face-to-face, individualized, tutorial teaching continues to be the most important teaching method for both undergraduate and postgraduate students.
Molecular Settlement: Making Atomic Settlement Work in a Positive Interest Rate Environment
Authors: Moreno Gutiérrez José Fernando , León Carlos , Soramäki Kimmo
Published: June 2024

Under the concept of atomic settlement, the time between the trade and the settlement of transactions is reduced to a very small fraction of time (e.g., seconds or less), making them instantaneous. A second feature is the exchange of all the assets in the transaction in a single event, making them simultaneous — no delivery or payment occurs if the others do not occur too, commonly known as delivery versus payment (DvP) or payment versus payment (PvP). Making the settlement of the transaction instantaneous and simultaneous may have several benefits. It could effectively mitigate risks to all parties by guaranteeing the immediate and concurrent transfer of all assets in a transaction. By squeezing the transaction to its lowest time and space dimensions (i.e., its atom), some risks related to the settlement of transactions may be mitigated, e.g., replacement-cost risk. However, making the settlement instantaneous and simultaneous only benefits some trading scenarios. In other scenarios, it will create higher liquidity requirements for the parties involved and increase settlement risk. This could be particularly burdensome in a positive interest rate environment. Therefore, notwithstanding its current allure, it is important to identify in which cases it makes no sense to settle atomically and how to make it work. For those transactions that do not benefit from instantaneous and simultaneous settlement, we suggest not working on the smallest units (i.e., the atoms) but on the second smallest units (i.e., the molecules). We propose building an intermediate centralized layer between the trade and settlement layers that will use atoms (i.e. single transactions) to use smart algorithms to create molecules (i.e., sets of transactions) that make sense to settle from a liquidity-efficiency viewpoint. This way, more transactions will benefit from faster and concurrent transactions while avoiding high liquidity costs.
Boganmeldelse: Kapitalisme og bæredygtig omstilling
Authors: Læssøe Jeppe
Published: June 2024

Anmeldelse af: Birger Steen Nielsen (2014), Vækstparadigmet ved vejs ende– Klimakrise, kapitalisme og den store omstilling, Frydendal, 471 sider.
Relations interpersonnelles en télétravail post-COVID et bien-être psychologique : rôle modérateur des jours de télétravail et de l’expérience professionnelle
Authors: Pudles Nathan , Hellemans Catherine
Published: June 2024

La prégnance du télétravail post-COVID nécessite d’en étudier les différents aspects, notamment relationnels, et leurs impacts sur les télétravailleurs. Il est considéré qu’en télétravail, les échanges formels et informels s’appauvrissent au détriment du bien-être des travailleurs (Ruiller et al., 2017). L’étude porte sur le lien, en télétravail post-COVID, entre la qualité des relations avec les collègues et les supérieurs hiérarchiques, et le bien-être psychologique au travail, ainsi que les effets modérateurs de l’ancienneté professionnelle et du nombre de jours de télétravail par semaine. L’étude, par questionnaire autorapporté, a été menée auprès de 123 travailleurs qui télétravaillent au moins un jour par semaine. Ont été interrogés : la qualité des relations, en télétravail, avec les collègues (TMX; Seers et al., 1995), la qualité des relations, en télétravail, avec les supérieurs hiérarchiques (LMX-MDM; Liden et Maslyn, 1998), le bien-être psychologique (IBEPT; Dagenais-Desmarais, 2010), ainsi que, notamment, le nombre de jours en télétravail par semaine et le nombre d’années d’expérience professionnelle. Les résultats des modérations ont montré que plus la qualité des relations avec les collègues et le supérieur hiérarchique durant les jours de télétravail est grande, plus les travailleurs ressentent de l’épanouissement, un sentiment de compétence et une volonté d’engagement, en particulier lorsque le nombre de jours télétravaillés est élevé. Les résultats suggèrent notamment que proposer aux travailleurs un télétravail intensif ne serait judicieux que si les relations avec les collègues et le supérieur hiérarchique restent de bonne qualité durant les périodes de télétravail.
L’activité de téléopération dans le démantèlement des installations d’une industrie nucléaire : analyse du dispositif technique et des enjeux organisationnels et humains
Authors: Ngueutsa Robert , Roy Louisa , Ciobabu Raluca , Palaci François , LHeureux Florent
Published: June 2024

Le vieillissement des installations et la transition énergétique engagent les industries du nucléaire dans une démarche de démantèlement d’installations obsolètes. La téléopération est au cœur du démantèlement, car ces installations sont complexes, difficiles d’accès et radioactives. La littérature sur la téléopération montre une prédominance des aspects techniques et renseigne peu sur ses usages dans un chantier de démantèlement; ce qui suscite des questionnements sur les enjeux organisationnels et humains. Cette recherche-intervention analyse les activités de téléopération dans une industrie du nucléaire pour en saisir les impacts physiques et psychiques sur le téléopérateur, en s’appuyant sur les théories de l’activité et de l’acceptation située des technologies. La démarche méthodologique est basée sur : a) une analyse de documents internes à l’entreprise; b) 10 entretiens individuels; d) la participation aux réunions d’un groupe de travail; d) deux observations d’une activité de téléopération. Cette démarche vise à tracer l’activité de téléopération auprès des différents acteurs impliqués dans le déploiement du dispositif, de la conception jusqu’à l’usage sur le terrain. L’analyse des contenus des observations et des entretiens révèle que la téléopération est une activité médiée, polyvalente et à multiples facettes (salle confinée, guidage et maintenance des outils), caractérisée par le travail statique, les tâches répétitives et des informations multisensorielles à gérer simultanément. Ces caractéristiques constituent des exigences physiques et cognitives susceptibles d’impacter le bien-être du téléopérateur. La formation du téléopérateur semble partielle et se réalise principalement en situation de travail réel. Cette étude identifie les contraintes techniques, organisationnelles et cognitives du téléopérateur dans un chantier de démantèlement. Elle suggère une conception participative d’un outil de téléopération flexible, associant les ingénieurs, les chefs de chantier et les téléopérateurs eux-mêmes, à partir du réel de l’activité, en vue de préserver la santé des téléopérateurs et d’optimiser leurs performances.
La eclosión del movimiento estudiantil (2): nuevas gramáticas, nuevos medios
Authors: Gozalo Salellas Ignasi
Published: June 2024

La reciente irrupción de nuevas protestas estudiantiles en la Universidad de Columbia y, por extensión, en las universidades de todo el país, nos habla sobre todo de los cambios demográficos y sociales que la sociedad norteamericana ha vivido a lo largo de las últimas décadas: las mujeres, las múltiples nacionalidades y razas, y también los nuevos medios de transmisión toman la palabra para influir en una nueva época. Finalmente, nos recuerda la enorme incidencia que tiene la «cuestión judía» en la ciudad de Nueva York y en las instituciones académicas más elitistas de los Estados Unidos.
Study of non-equilibrium statistical physics of protein machine by cryogenic electron microscopy
Authors: Yang Tian , Ouyang Qi ,   School of Physics, Peking University, Beijing 100871, China,   Center for Quantitative Biology, Peking University, Beijing 100871, China
Published: June 2024

A comprehensive description of the protein should include its structure, thermodynamics, and kinetic properties. The recent rise of cryogenic electron microscopy (cryo-EM) provides new opportunities for the thermodynamic and kinetic research of proteins. There have been some researches in which cryo-EM is used not only to resolve the high-resolution structure of proteins but also to analyze the conformational distribution of proteins to infer their thermodynamic properties based on data processing methods. However, whether cryo-EM can be used to directly quantify the kinetics of proteins is still unclear. In this work, an ideal protein system, cyanobacterial circadian clock protein, is selected to explore the potential of cryo-EM used to analyze the non-equilibrium process of proteins. Previous research has illustrated that cryoelectron microscope can be used to infer the thermodynamic information about the KaiC protein such as the inter-subunit interaction within the hexamers. Herein, we extend the equilibrium Ising model of KaiC hexamers to a non-equilibrium statistical physics model, revealing the properties of the non-equilibrium process of KaiC hexamers. According to the non-equilibrium model and previous biochemical research, we find that the intrinsic properties of KaiC protein allow its non-equilibrium conformational distribution to be measured by cryo-EM.
Temporally resolved early BMP-driven transcriptional cascade during human amnion specification
Authors: Sekulovski Nikola , Wettstein Jenna C. , Carleton Amber E. , Juga Lauren N. , Taniguchi Linnea E. , Ma Xiaolong , Rao Sridhar , Schmidt Jenna K. , Golos Thaddeus G. , Lin Chien-Wei , Taniguchi Kenichiro
Published: June 2024

Amniogenesis, a process critical for continuation of healthy pregnancy, is triggered in a collection of pluripotent epiblast cells as the human embryo implants. Previous studies have established that BMP signaling is a major driver of this lineage specifying process, but the downstream BMP-dependent transcriptional networks that lead to successful amniogenesis remain to be identified. This is, in part, due to the current lack of a robust and reproducible model system that enables mechanistic investigations exclusively into amniogenesis. Here, we developed an improved model of early amnion specification, using a human pluripotent stem cell-based platform in which the activation of BMP signaling is controlled and synchronous. Uniform amniogenesis is seen within 48 hours after BMP activation, and the resulting cells share transcriptomic characteristics with amnion cells of a gastrulating human embryo. Using detailed time-course transcriptomic analyses, we established a previously uncharacterized BMP-dependent amniotic transcriptional cascade, and identified markers that represent five distinct stages of amnion fate specification; the expression of selected markers was validated in early post-implantation macaque embryos. Moreover, a cohort of factors that could potentially control specific stages of amniogenesis was identified, including the transcription factor TFAP2A. Functionally, we determined that, once amniogenesis is triggered by the BMP pathway, TFAP2A controls the progression of amniogenesis. This work presents a temporally resolved transcriptomic resource for several previously uncharacterized amniogenesis states and demonstrates a critical intermediate role for TFAP2A during amnion fate specification.
Unraveling the Power of NAP-CNB’s Machine Learning-enhanced Tumor Neoantigen Prediction
Authors: Méndez-Pérez Almudena , Acosta-Moreno Andrés M. , Wert-Carvajal Carlos , Ballesteros-Cuartero Pilar , Sánchez-García Rubén , Macías José R , Sanz-Pamplona Rebeca , Alemany Ramon , Sorzano Carlos Óscar S. , Muñoz-Barrutia Arrate , Veiga Esteban
Published: June 2024

In this study, we present a proof-of-concept classical vaccination experiment that validates the
in silico
identification of tumor neoantigens (TNAs) using a machine learning-based platform called NAP-CNB. Unlike other TNA predictors, NAP-CNB leverages RNAseq data to consider the relative expression of neoantigens in tumors. Our experiments show the efficacy of NAP-CNB. Predicted TNAs elicited potent antitumor responses
in vivo
following classical vaccination protocols. Notably, optimal antitumor activity was observed when targeting the antigen with higher expression in the tumor, which was not the most immunogenic. Additionally, the vaccination combining different neoantigens resulted in vastly improved responses compared to each one individually, showing the worth of multiantigen-based approaches. These findings validate NAP-CNB as an innovative TNA-identification platform and make a substantial contribution to advancing the next generation of personalized immunotherapies
Reduced mitochondrial transcription sensitizes acute myeloid leukemia cells to BCL-2 inhibition
Authors: Arabanian Laleh S. , Adamsson Jenni , Unger Anke , Lucrezia Raffaella Di , Bergbrede Tim , Ashouri Arghavan , Larsson Erik , Nussbaumer Peter , Klebl Bert M. , Palmqvist Lars , Gustafsson Claes M.
Published: June 2024

Overcoming drug-resistance and the subsequent relapse that often occurs with monotherapy is crucial in the treatment of acute myeloid leukemia. We here demonstrate that therapy-resistant leukemia initiating cells can be targeted using a novel inhibitor of mitochondrial transcription (IMT). The compound inhibits mitochondrial RNA polymerase activity and sensitizes the resistant population to the induction of apoptosis.
In vitro
studies on acute myeloid leukemia cells demonstrate that IMT prevents cell proliferation, and together with a selective BCL-2 inhibitor, venetoclax, induces apoptosis and suppress oxidative phosphorylation (OXPHOS) synergistically. AML mouse models treated with IMT in combination with venetoclax show prolonged survival in venetoclax-resistant models. Our findings suggest that certain therapy-resistant leukemia cell populations display a unique dependency on mitochondrial transcription and can be targeted with IMT.
Associations between Digital Literacy and Executive Functions in College Undergraduates
Authors: Tabullo Ángel Javier , Saux Gastón , Grasso Lina
Published: June 2024

Digital literacy can be defined as a set of skills for searching, accessing, navigating, integrating, and evaluating the reliability of information on the internet, mainly in written form. The present study aimed to examine the contribution of executive function skills (inhibition, cognitive flexibility and working memory) to performance on a digital literacy assessment tool in college undergraduates. Eighty-five Argentinean university undergraduates (56 female, mean age 20.34 ± 4.6 years) completed a digital literacy test and a computerized executive functions battery. After controlling for vocabulary scores and sociodemographic factors, cognitive flexibility was the main predictor of digital literacy scores. In particular, it was associated with information search and integration task performances. Visuospatial working memory predicted information search scores and inhibition correlated positively with reliability evaluation tasks. Our results indicated: 1) a general involvement of cognitive flexibility in digital literacy, possibly reflecting the need to shift between multiple documents, reading or navigation strategies; 2) a specific link between visuospatial working memory and information search, which might be indicating a spatial processing load related to hyperlink navigation; and 3) a possible involvement of inhibition in the evaluation of web documents, which may contribute to the suppression of irrelevant information.
Political System Justification in Argentina: Ideology, System Performance, and the Legitimization of Democracy
Authors: Alonso Daniela , Brussino Silvina
Published: June 2024

The main objective of this study was to analyze democracy legitimacy in a non-WEIRD country from a political psychology perspective. More specifically, two dimensions of democracy legitimacy were empirically isolated: diffuse and specific support. We tested a system justification model of democracy legitimacy, while also assessing the role of sociodemographic and context evaluation variables. We applied a questionnaire with closed-ended response choices to a non-probabilistic quota sample of adults from Cordoba, Argentina (n = 450). Besides descriptively analyzing democracy legitimacy, two hierarchical multiple regression analyzes were performed, one for each criterion variable. The results evidenced that diffuse support for democracy remains relatively high, while specific support for Argentine political system is markedly low. Different variables explained each dimension of political legitimacy: those regarding ideological system justification—right-wing authoritarianism, social dominance orientation, and political conservatism—explained an important amount of the variance of diffuse support but had only a marginal role in explaining specific support. The latter was better predicted by context evaluation variables, suggesting that system performance is more relevant than ideology when it comes to specific support. Thus, although democracy legitimacy could be based on a relatively developed civic culture, a poor system performance is not innocuous. The authors discuss how the theoretical explanations developed and framed in Western democracies may be not adequate to comprehend Latin American political culture.
Evidencias de Validez de la Escala de Conducta Prosocial en una Muestra Colombiana
Authors: Villalba Javier , Hernández Juan , Betancort Moisés , Avendaño Bertha
Published: June 2024

El objetivo de este estudio fue recolectar evidencias de validez basadas en el contenido de los ítems y en la estructura interna de la Escala de Conducta Prosocial (Auné & Attorresi, 2017), para obtener una adaptación preliminar para la población colombiana. Respecto al contenido de los ítems, los expertos aprobaron nueve de los quince ítems, se realizaron ajustes a cinco ítems y se decidió eliminar uno. El acuerdo global entre los tres expertos más exigentes fue del 73,33% con un Kappa de Fleiss k=0,585 y un p=0,000. La dimensión Ayuda tuvo fiabilidades α=0,85 y ω=0,83 y en la dimensión Confortar al otro se obtuvo un α=0,77 y ω=0,58. Se confirmó la estructura factorial del modelo bidimensional integrado con las dimensiones Ayuda y Confortar al otro, con índices de bondad de ajuste NFI=0,958, NNFI=0,979, CFI=0,982, TLI=0,979 y RMSEA=0,046. Esta estructura fue invariante con restricción configural, métrica, escalar y residual entre hombres y mujeres. La calibración de los ítems con el modelo de Rasch permitió identificar que las personas que invierten su tiempo libre en ayudar, sumado a la disposición de brindar apoyo físico a otros, son las que presentan los niveles más altos de conducta prosocial. Estas evidencias avalan el uso del cuestionario en Colombia para fines investigativos.
A Escala Humana. Reconfigurando la calle para una vida urbana vibrante, el caso de la Alameda en Estación Central
Authors:   , Ebensperger Escalona Ignacio Andrés
Published: June 2024

Desde la segunda mitad del siglo XX, varias ciudades han privilegiado un desarrollo que se centra en la distribución del espacio en las calles para acomodar el correcto funcionamiento de los medios de transporte motorizados, relegando la escala humana de éstas.Para esta tesis se investigó sobre qué es la escala humana dentro del ámbito de la arquitectura y urbanismo y el cómo esta se aplica al diseño de espacios públicos (E. P.). Junto a comprender, en qué medida los medios de transporte sostenible pueden jugar un rol en la construcción de un E. P. en la calle, que fomente una vida urbana vibrante. Comprendidos estos antecedentes, se realizó una investigación cuantitativa en el sector de la Alameda en la comuna de Estación Central. Registrando la distribución espacial del perfil de la calle y el flujo promedio de usuarios en horarios específicos. Para luego levantar mediante una investigación cualitativa el cómo se percibe y experimenta la estadía en la acera.La investigación demuestra lo concreto de las posibles operaciones para poder revertir la situación actual de las calles y lograr una escala humana en estas. Asimismo, se demuestra el potencial que tienen los medios de transporte sostenible para iniciar este tipo de cambios tanto en el espacio físico como en la percepción de la ciudad y la cultura que se tiene en torno al cómo una persona se mueve dentro de esta. Por otro lado, los resultados de los levantamientos muestran una situación en el sector de estudio que acoge fuertemente la predominancia y favorecimiento hacia los medios de transporte motorizados, además de una percepción negativa por parte de los usuarios de las condiciones en que se encuentra la acera y la experiencia de la estadía en ella.Concluyendo sobre la importancia que tiene para la vida cotidiana de las personas y su experiencia en la ciudad el recuperar la escala humana en las calles de ésta. También se resalta el rol como motor de cambio que pueden llegar a tener los medios de transporte sostenible y la infraestructura asociada para llevar a cabo esta nueva visión de ciudad. Por último se propone un proyecto de rediseño de una intersección y segmento de la Alameda en el sector de estudio, para ilustrar posibles soluciones.
Complete Lung Atelectasis Following Caesarean Section in a Case of Imminent Eclampsia- A Case Report
Authors: Yaliwal Rajasri , Sangolli Laxmi , Biradar Aruna , Tejaswi Sona , Gupta Namita
Published: June 2024

In the early postpartum period, acute life-threatening problems can occur and cause maternal morbidity and mortality. In the present case report, a 19-year-old primipara had undergone caesarean delivery following which she developed breathlessness, tachycardia and fall in oxygen saturation after 14 hours of surgery. Her Chest X-Ray (CXR) report confirmed a complete collapse of the left lung. Contrast-enhanced Computed Tomography (CECT) of the thorax showed a complete collapse of the left lung due to obstruction at the level of the proximal main stem bronchus. Medical management with mucolytics was administered. The patient showed improvement clinically and a repeat CXR after 24 hours showed normal lung findings with complete resolution of collapse and medical management was continued. The patient recovered progressively and follow-up of the patient was uneventful. This is a rare case of development of respiratory distress and atelectasis, hence proper diagnosis is essential.
Effectiveness of Mirror Therapy through Telerehabilitation on Upper Extremity Performance in Hemiparetic Stroke Patients: An Experimental Study
Authors: Althaf AT , Umaiorubagam Ganapathy Sankar , Ravikumar Monisha , Sandeep , Redkar Simran
Published: June 2024

Introduction: A major challenge in stroke rehabilitation is the paresis of the Upper Extremity (UE), resulting in limited functional performance. Recently, motor imagery and Mirror Therapy (MT) have been recommended as an additional rehabilitation strategies that could be beneficial for motor rehabilitation after a stroke. Aim: To determine the effectiveness of mirror visual feedback through Telerehabilitation (TR) on UE functional performance in hemiparetic stroke patients. Materials and Methods: An experimental pretest, post-test study design was conducted at SRM Medical College Hospital and Research Centre, SRMIST, Kattankulathur, Chengalpattu, Tamil Nadu, India from January 2021 to June 2021. Total of 60 patients diagnosed with hemiparetic stroke were included in the study through convenience sampling and divided into two groups. The experimental group (n=30) received TR, and the control group (n=30) received face-to-face MT for 12 weeks. A pretest and post-test evaluation were administered using the Wolf Motor Function Test (WMFT) and Fugl-Meyer Assessment for the Upper Extremity (FMA-UE). Within-group analysis was performed using the Wilcoxon Signed-Rank Test, while intergroup analysis was conducted using the Mann-Whitney U Test. Results: The study revealed statistical significance between the pretest and post-test scores of the WMFT-FAS (Functional Ability Score), WMFT-Time (Performance Time), and FMA-UE in the control and experimental groups. The results showed no statistically significant difference between the post-test scores of the control and experimental groups in the FMA and WMFTFAS. However, there was a statistically significant distinction in the post-test scores between the control and experimental groups in WMFT-Time. Conclusion: The study concluded that mirror visual feedback through TR was an effective treatment method to improve UE functional performance among hemiparetic stroke patients by offering an alternative service delivery model for occupational therapy
A Complex Interrelationship of Childhood Obesity, Dental Caries and Malocclusion Amidst the COVID-19 Pandemic and Social Media Amplification: A Narrative Review
Authors: Saha Swagata , Manju R
Published: June 2024

Recent research has highlighted the link between childhood obesity, dental caries, and malocclusion, and how the Coronavirus Disease - 2019 (COVID-19) pandemic and social media have worsened these health issues. Increased screentime and decreased physical activity during the pandemic have significantly contributed to these conditions among children. Studies emphasise the need to address common risk factors such as unhealthy diets, limited healthcare access, and poor public health policies to reduce their negative effects. This review explores the complex relationship between childhood obesity, dental caries, and malocclusion, with a focus on their global importance. It examines the connections and shared risk factors between these conditions, particularly in the context of the pandemic and the growing influence of social media on children. The goal is to provide insights for developing effective interventions and management strategies to improve children's health worldwide. The present review stresses the urgent need for comprehensive strategies that target both individual and collective risk factors, while also considering broader socioeconomic and digital influences on children's health behaviours. Promoting healthy lifestyles, access to nutritious foods, physical activity, and better dental care can help to alleviate these conditions. Understanding the interplay between these health issues and the digital environment is crucial to creating effective and adaptable public health interventions.
Analyzing Sales Challenges with Root Cause Analysis to Enhance Business Process
Authors: Nainggolan Andreas Maruli Tatar , Wiyarni Wiyarni
Published: June 2024

Aims: The purpose of this study is to analyze sales problems of a company using root cause analysis to support business process improvement.
Study Design:  This study is qualitative approach and uses Root Cause Analysis to analyse the data.
Place and Duration of Study: To maintain company confidentiality, this research uses the name of XYZ instead of the actual name. The object of this research is XYZ Company that company engaged in the wholesale trade of car parts and accessories, retail trade of vehicle parts and accessories, between August 2023 and December 2023.
Methodology: This study used mixed method approach (qualitative and quantitative).The informants in this study were divided into internal and external sources. Informants from internal sources come from Directors, Commissioners, Area Sales Managers, Finance Administration and Tax Managers, HRGA Managers, and Branch Managers. The external informants of this study are external informants are Senior Trainer Performance Excellence, Founder & Trainer Expert Club Indonesia. The data also collected from results of the meeting minutes at the time of the Sales Gathering, and minutes of branch sales performance evaluation meetings.
Results: The results of this study indicates the most dominant cause of the problems are customer database not update, Apps Upgrade and Notifications, Address and location do not match, and Force Majeure conditions (flooding business premises). The solutions are standardization, automation and/or mechanization, and improve sales person capability.
Conclusion: Increasing sales is the main thing that top management wants to achieve for all teams under it, to support business process improvement; has been proven by changes in results or ongoing improvement processes using root cause analysis in an effort to resolve problems that occur and continuous improvement or improvement.
Behavioral Attributes Influencing Decision Making of Indian Derivative Market Investors
Authors: Singh LG Honey , Chaudhary Amar Kumar
Published: June 2024

Aim: The retail investors of the Indian investment landscape are found to base their investment decisions on several factors that may not be entirely attributed to price movement and information availability. Various studies have been conducted to capture these behavioral attributes that may invariably have an influencing effect either knowingly or unknowingly on the investors. This study aims to identify these behavioral biases influencing investor’s decision-making when they are active participants in the Indian Derivative market.
Methodology: The study is conducted using primary data over 200 derivative investors within the northern Indian subcontinent aged between 18 years to 50 years. A questionnaire has been adapted from the defined scales from literature and uses the Likert scale to measure the behavioral patterns of investors. A cross-sectional survey method is used to distribute the questionnaire both online and offline. Factor analysis is then employed to identify the latent variables impacting the decision-making.
Results: The sample under study generated six factors that have a significant influence on decision-making. These factors include Herding bias, Overconfidence bias, Risk Aversion, Market Responsiveness, Information processing Style and Information Reliance. All these factors have a significant influence on the investors buying and selling behavior in the Indian derivative market. A reliability test was run to assess the reliability of the factors where the Cronbach alpha was found to be above 0.8 for all the factors which shows a strong internal coherence among the factors.
Enhancing Yield and Nitrogen Utilization of Boro Rice with Urea Super Granules
Authors: Huq Md. Mazedul , Jahan Israt , Hoque Md. Anamul , Islam Md. Rafiqul
Published: June 2024

A field experiment was conducted at the Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during boro season to assess the comparative performance of prilled urea (PU) and urea super granule (USG) on the growth, yield, and nitrogen uptake of BRRI dhan29. The experiment was laid out in a randomized complete block design with three replications. The treatment combinations were T1: Control, T2: PU at 7 days after transplanting (DAT)+27 DAT+47 DAT, T3: PU at 10 DAT+30 DAT+50 DAT, T4: PU at 15 DAT+35 DAT+55 DAT, T5: USG at transplanting, T6: USG at 7 DAT, T7: USG at 10 DAT and T8: USG at 10 DAT+30 DAT where PU and USG were applied @ 216 kg N ha-1. PU was applied as surface broadcasting whereas USG was placed at 6-8 cm depth by hand between four hills at every alternate row. The results revealed that all the treatments showed better performances than control (T1). Results found that yield components, yield, and nitrogen uptake of BRRI dhan29 responded significantly to deep placement of USG than PU. Treatment T6 (USG at 7 DAT) produced the highest grain and straw yields of 6.56 t ha-1 and 6.95 t ha-1 respectively. Treatment T6 (USG at 7 DAT) also showed the highest grain yield increase (57.16%) and straw yield increase (52.37%) over control. The highest grain, straw, and total N uptake of 87.28, 32.71 and 120 kg ha-1 respectively were obtained in the treatment T6 (USG at 7 DAT). The overall results clearly indicate that deep placement of USG at 7 DAT in rice field increases rice yield and efficient uptake of the applied N. So, treatment T6 (USG at 7 DAT) could be recommended as best treatment for reducing N losses, conserving environment and improving sustainable production of rice.
Carambola: The Forbidden Fruit for Patients with Renal Disorders
Authors: James Michelle K.
Published: June 2024

Five-Finger is very popular across the ten administrative regions, but especially on the Coastal Plains of Guyana. Never was taught that it is forbidden to those with renal diseases. Thus, it has been discovered that this favorite and versatile fruit to many has its darker side, especially for people with renal disorders or poor kidney functions. The focal area of interest in this study. Carambola is also credited with similar characteristics to watermelon and papaya fruits, due to similar characteristics in nutrients, and health benefits. Therefore, Carambola, star fruit /five-finger has been scientifically proven to have negative effects on health if taken while experiencing the presence of chronic kidney disease, gastroenteropathies, chronic pancreatitis, and dehydration. Consequently, it is recommended that the fruit be taken in moderation by persons who are not predisposed to the caramboxin and oxalate substances in the fruit, and anyone who is diagnosed with renal issues or kidney disease is advised to avoid the consumption of carambola in any form.
Copper Adsorption by a Clay from Central Ivory Coast: Analysis by Differential Pulse Anodic Stripping Voltammetry
Authors: Robin Manouan Wedjers Max , Tchonrontcha Koné Yetchié , Ollo Kambiré , Urbain Kouakou Yao , Guillaume Pohan Lemeyonouin Aliou
Published: June 2024

Heavy metals such as copper are not only a problem for air pollution: they are bio persistent, disrupt ecosystems, damage soils, surface waters, forests, and crops, and accumulate in the food chain. The aim was to propose effective methods for quantifying and decontaminating wastewater containing copper. In this study, the treatment of copper(II)-containing wastewater was carried out using clay, and the concentration of Cu2+ was monitored using the differential pulse anodic stripping voltammetry method. Physical characterization revealed the porous nature of our clay. Furthermore, the kinetic study of Cu2+ adsorption on clay is adapted to the pseudo-order 2 kinetic model, and the appropriate isotherm is that of Langmuir with an equilibrium time of 20 min. Cu2+ adsorption is maximal at pH = 6. The maximum monolayer adsorption capacity was found to be 66.54 mg/g.
A Study on Design and Microwave Characteristics of a RF/IR Multispectral Absorber
Authors: Yoon Minah , Jeon Suwan , Ra Youngeun , Jo Yerin , Choi Wonwoo , Lee Yukyoung , Kim Kwangseop , Lee Jonghak , Kim Kichul , Choi Taein , Lee Hakjoo
Published: June 2024

In this paper, a design for a radio frequency(RF) and infrared(IR) absorber with metasurfaces is discussed in microwave frequency bands. The RF absorber includes double layers of metasurfaces to operate in S- and X-bands. Effects of sheet resistance of the metasurfaces and thicknesses of dielectric supporting layers on reflection responses are investigated. An IR stealth layer incorporates an array of conductive grids with slits to reflect IR signals but to transmit RF signals and visible rays. Periodicity of the grids and slits is studied for transmission responses in the X-band and a surface area ratio. Reflection responses of the RF/IR multispectral absorber are found to be lower than -10 dB and -16 dB in the S- and X-bands, respectively, from full-wave simulation. Finally, the RF/IR multispectral absorber is fabricated and its reflection responses are measured to verify designed performance.