bluuebunny/crossref_metadata_2025_split huggingface dataset:
APPLICABILITY OF THE SUSPENSION EFFECT IN ESTIMATION OF INFLUENCE EXERTED BY IONIC COMPOSITION OF FLOTATION PULP ON APATITE SURFACE
Authors: АРТЕМЬЕВ А.В. , МИТРОФАНОВА Г.В. 
Published: October 2024

Определением суспензионного эффекта изучено изменение поверхностных свойств апатита под действием реагентов и ионов, присутствующих во флотационной пульпе в процессе переработки апатитсодержащих руд. Показано изменение соотношения кислотно-основных центров на поверхности апатита при взаимодействии с ионами HCO3-, CO32-, HPO42-, катионами Ca2+ и олеат-ионами в дистиллированной воде и в воде деионизированной от углекислого газа. Изменение свойств поверхности апатита в щелочной среде выражается в количественном преобладании на ней основных центров. Такая схема ионизации поверхности минерала обеспечивает благоприятные условия для сорбции катионов, например Ca2+, и создает предпосылки для более эффективного взаимодействия реагентов анионного типа. Полученные с помощью изучения суспензионного эффекта данные коррелируют с результатами ИК-спектроскопии апатита, обработанного соответствующими реагентами.
By means of determining the suspension effect, the authors studied the change in the surface properties of apatite under the action of reagents and ions present in flotation pulp during processing of apatite-bearing ore. It is shown that the ratio of acid-base centers of apatite surface change in interaction with ions HCO3-, CO32-, HPO42-, and oleate ions in distilled water and in water after deionization to remove carbon dioxide. The change in apatite surface properties in alkaline water shows up as quantitative superiority of base centers. Such ionization of mineral surface favors adsorption of cations, for example, Ca2+, and sets background for more efficient interaction between anion-type agents. The data obtained from the studies of the suspension effect, correlate with the results of infrared spectroscopy of apatite treated by the appropriate agents.
SINGLE-CRITERION OPTIMIZATION OF LIMESTONE SUPPLY UNDER THE CONDITIONS OF VARIABLE THERMAL POWER COMPLEX STRUCTURE AND THE DIFFERENCES BETWEEN SOLUTIONS
Authors: ПРАШТАЛО Ж. , ВУЙИЧ С. , КУЗМАНОВИЧ М. , СТЕПАНОВИЧ П. , ШАРАЦ Р. 
Published: October 2024

Представлено однокритериальное моделирование поставок известняка в условиях изменяющейся структуры теплоэнергетического комплекса Сербии. Проанализированы различия между многоатрибутным и однокритериальным решениями.
The paper presents the single-criterion modeling of limestone supply under the conditions of the variable structure of the thermal power complex of Serbia. In the end, the paper provides an analysis of the differences between multi-attribute and single-criterion solutions.
IMPROVEMENT OF LOCAL ROCKBURST CONTROL EQUIPMENT IN MINERAL MINING
Authors: РАССКАЗОВ И.Ю. , АНИКИН П.А. , ГРУНИН А.П. , МИГУНОВ Д.С. , ТЕРЕШКИН А.А. 
Published: October 2024

В результате модернизации аппаратной части прибора “Prognoz-L” на основе современной электронной базы и накопленного опыта разработан прибор “Prognoz-L2” для экспресс-оценки состояния массива горных пород. Приведены результаты апробации прибора в условиях месторождения опасного по горным ударам.
As a result of hardware updating of Prognoz-L based on the modern electronic engineering and the accumulated experience, rock mass express-evaluator Prognoz-L.2 has been designed. The test data of the evaluator are presented as a case-study of a rockburst-hazardous mineral deposit.
Effectiveness of Short-Term Use Denosumab and Risedronate Using β-Crosslaps and Histopathology as a Parameter in Osteoporotic Rat Model
Authors: Siwendro Afrisya Bimo , Ramdan Ahmad , Ismiarto Yoyos Dias , Yantisetiasti Anglita , Fachri Dliyauddin 
Published: October 2024

Osteoporosis is a condition of decreased bone mass density. Pharmacological management uses drugs that decrease bone resorption or increase bone formation. The most commonly used drugs are bisphosphonates. Risedronate is one of these bisphosphonates. It inhibits osteoclasts, resulting in osteoclast apoptosis. Denosumab is a human monoclonal antibody that inhibits receptor activator kappa-B ligand, inhibiting osteoclast activation. Both drugs are widely used. Research on the efficacy of these two mechanisms has yet to obtain conclusive results. β-cross-laps is a parameter that can be used to evaluate the effectiveness of therapy through monitoring the bone resorption process. This experimental study used female rats >9 weeks old and was conducted at the Pharmacology and Therapeutic Laboratory, Universitas Padjadjaran Bandung, Indonesia, from June to September 2021. This study utilized a simple random sampling to allocate 24 experimental animals into three groups: control, risedronate, and denosumab. β-Crosslaps expression values before ovariectomy, post ovariectomy before receiving medication, and post ovariectomy and receiving medication was recorded and statistically analyzed using the SPSS version 24.0. The analysis of 24 samples revealed a statistically significant decrease in the median value of β-Crosslaps after ovariectomy in the denosumab group (p=0.036) when compared to the control group, whereas the decrease in the risedronate group was not significant (p=0.687). Administration of denosumab in rat models is more effective in reducing bone resorption compared to risedronate.
Exploring the factors influencing low-carbon travel: Evidence from Taiwan
Authors: Wu Ying-Wei , Liao Ting-Hsiu , Huang Hao-Chen 
Published: October 2024

This study aims to explore how low-carbon travel intentions are influenced by numerous factors such as low-carbon literacy, environmental attitudes and perceived behavioural control. The study obtained 615 valid samples through a questionnaire survey and employed confirmatory factor analysis to evaluate the reliability and validity of the constructs. Hypotheses were tested using a linear structural equation model. The mediating effect of low-carbon travel intention was assessed and different models were compared through nested model analysis. The results show that under partially mediating models, environmental attitudes and low-carbon literacy significantly impact low-carbon travel through low-carbon travel intentions but perceived behavioral control directly influences low-carbon travel. These insights are significant for tourism operators in formulating strategies and marketing promotions, helping to more accurately target audiences and promote the widespread adoption of low-carbon tourism.
Applying vroom expectancy theory to analyse employee motivation: A study of commercial banks in Vietnam
Authors: Thu Hanh Le , Van Ha Nguyen 
Published: October 2024

In researching motivation, the process approach is better and has more potential than the content approach. This research aims to apply Vroom expectancy theory, a process-based approach to motivation to gain a greater understanding of employee motivation within the commercial banking sector in Vietnam. Additionally, this study seeks to validate the applicability of the expectancy theory by surveying 901 employees from 16 commercial banks with different total assets and numbers of employees. The data analysis involved the utilization of Cronbach's alpha, Exploratory Factor Analysis (EFA), confirmatory factor analysis (CFA) and structural equation model (SEM). This study reveals that there is a positive relationship between expectancy (E), intrinsic instrument (I-IN), intrinsic valence (I-V) and employee motivation (EM). Employee motivation has an impact on job performance. Nevertheless, it has been observed that the presence of extrinsic valence (E-V) and extrinsic instruments (E-IN) do not significantly impact employee motivation despite the high employees’ level of need for extrinsic valence. This finding deviates considerably from previous studies that applied Vroom's theory. These findings further emphasize the notion that motivation is a dynamic process. Using a process approach in investigating motivation has significant efficacy and employee motivation has a substantial impact on employee performance especially in the context of commercial banks in Vietnam.
Predictors of Post-COVID-19 Recovery: A Single-Center Study
Authors: Rahimi Najme , Yazdani Abdolghafour , Jalilian Habib , Shahraini Ramin , Kazemzade Asghar , Kargari Sadegh 
Published: October 2024

Background: The average duration of recovery time in COVID-19 patients after contracting can be affected by various factors. Understanding the average duration of recovery time is important in formulating preventive measures/interventions. This study aims to assess predictors of post-COVID-19 recovery.
Methods: This observational longitudinal study was conducted among COVID-19 patients admitted to Vasei Hospital in Sabzevar, Iran in 2021. Data were extracted from the Hospital Information System. COVID-19 Experiences (COVEX) questionnaire was used to assess the type and severity of symptoms. Patients who were admitted to the hospital were assessed at baseline and were followed up one month and two months after discharge through telephone calls. Chi-square test was used to examine the association between demographic variables, clinical variables, disease symptoms, and time to recovery.
Results: A total of 250 COVID-19 cases were followed up for 30 and 60 days after discharge. The mean duration of recovery from COVID-19 was significantly higher in women, old patients, those with higher BMI, cases without physical activity, those with severe chest CT scan results, patients with severe diseases, and those who were discharged after 30 days (P-Value< 0.05). Patients with dry cough and chest pain were less likely to make a full recovery after 30 days. The cases with dry cough, headache, dyspnea, and chest pain were less likely to make a full recovery after 60 days than those without (P-Value< 0.05).
Conclusion: Health providers in healthcare centers should give priority to high-risk groups (e.g. those with severe chest radiography results, and those with severe disease severity). The presence of dry cough and chest pain was found to be a risk factor for delayed recovery. Initial assessment of COVID-19 patients, such as chest CT scans, can predict the severity of the disease and unfavorable outcomes. Moreover, it seems the management of comorbidities can play a vital role in recovery from COVID-19.
Arquitectura, catolicismo y ruralidad en Uruguay
Authors: Mendez Mary 
Published: October 2024

En este texto se presenta al arquitecto uruguayo Horacio Terra Arocena (Montevideo, 1894-1985) a través de los frentes de acción que determinaron su trayectoria. Fue un reconocido profesional que presidió la Sociedad de Arquitectos y el Instituto Nacional de Viviendas Económicas. Participó de los Congresos Panamericanos de Arquitectos y fue docente en la Facultad de Arquitectura. Escribió ensayos sobre teoría del arte y estética y también una novela de ciencia ficción. Fue político, parlamentario en representación de la Unión Cívica y autor de diversas leyes.
Como agente del espacio social católico dirigió el diario El Bien Público, se hizo cargo de la revista Tribuna Católica y fue el arquitecto asesor de la Curia de Montevideo, aconsejando a Monseñor Antonio María Barbieri. El neotomismo de Jacques Maritain y la interpretación del tiempo del jesuita Teilhard de Chardin tuvieron una importante incidencia en su pensamiento, en el marco de un renovado interés de los católicos por el espiritualismo de Henry Bergson.
En este artículo se describe y analiza la actividad que Terra Arocena desarrolló como arquitecto católico. El argumento está basado en una metodología que remite a un estudio cualitativo de diversas fuentes escritas. Se sustenta en un pormenorizado estudio del catolicismo, del que emerge una persistente valoración de la ruralidad que se alzó contra la ciudad y coincidió con una corriente de pensamiento arquitectónico que discutía los valores de las grandes urbes. En este marco, la función pública le permitió llevar adelante acciones concretas para hacer realidad la instalación de una cultura agraria en Uruguay, confiando en que la solución granjera podría resolver los problemas de vivienda, tanto en el campo como en los suburbios de las ciudades.
Analysis of graphene as a potential filtration membrane for desalination at varying operating conditions using molecular dynamics simulation and response surface methodology
Authors: Megha M. , John Nibu , Pramada S. K. , Arunkumar R. 
Published: October 2024

ABSTRACT

Water scarcity is a critical global issue exacerbated by pollution and overuse, necessitating sustainable water management solutions. Desalination using membrane technology presents a promising approach for freshwater production. This study investigated the performance of nanoporous (NPG) membranes for desalination, focusing on the influence of pressure and temperature on water flux and ion rejection. Utilizing molecular dynamics (MD) simulations with the LAMMPS package, this study evaluates NPG membranes under various conditions of pressures and temperatures. The simulations demonstrate that increasing both the pressure and temperature enhances the water flux without compromising ion rejection. The results indicate that at 300 K and 50 MPa, the water flux exceeds 2000 L/m2 h bar, significantly outperforming traditional reverse osmosis membranes, which typically achieve a capacity of approximately 1 L/m2 h bar. These findings were validated experimentally, aligning with previous research and confirming the superior performance of NPG membranes. A statistical model derived from response surface methodology revealed a linear relationship between pressure, temperature, and water flux. The study concludes that NPG membranes offer a high efficiency and scalable solution for desalination, with significant potential for energy savings and cost reduction. This study underscores the viability of NPG membranes in addressing global freshwater shortages and provides a pathway for sustainable water production.
Development of a mathematical model of a collinear filter based on Quartz (SiO2) and its practical implementation
Authors: Bakeev D. A. , Filippov V. V. 
Published: October 2024

Purpose of the work.Development and testing of a theoretical model of an acousto-optic quasi-collinear tunable filter on crystalline quartz, operating in the spectral range of 0.25-0.4 microns with a spectral resolution of 0.2 nm.Methods.The paper analyzes the basic properties of acousto-optic tunable filters based on crystals of various classes. Based on literature analysis and calculations, an experimental AOTF model was proposed and practically implemented. The study of the physical properties of light filtration on an α-SiO2 crystal was carried out using an experimental method.Practical studies of the spectral tuning of the device at experimental optical frequencies were carried out in the proposed ultrasonic standing wave system in accordance with the tuning characteristic. Based on known experimental data, a theoretical model for describing the passband taking into account piezoelectric effects is proposed.Results.The influence of crystal anisotropy on their acoustoelectric properties is shown. The optimal crystallographic parameters for the operation of filters on a silicon oxide crystal have been determined. A computer model of AOTF has been developed, implemented on the basis of numerical calculations in the Wolfram Mathematica environment. It was experimentally revealed that in the red part of the spectrum under study, the maximum intensity of the frequencies of diffracted light is observed, which corresponds to those closest to the natural frequencies of the piezoelectric transducer, while at the same time, in the blue and violet spectra, the lowest transmission was observed. Practical studies have confirmed that the broadening of the filter passbands occurs due to an increase in the divergence of light.Conclusions.A mathematical model of an acousto-optic quasi-collinear tunable filter on crystalline quartz was substantiated and developed, on the basis of which the calculation of the AOTF operating in the spectral range of 0.25 - 0.4 μm with a spectral resolution of about 0.2 nm was performed.
Searching of optimal conditions and development of analysis of isocyanate groups in prepolymers
Authors: Pozhidaeva S. D. , Pozhidaeva V. V. 
Published: October 2024

The purpose of the work was to study the options for volumetric analysis of isocyanate groups in prepolymers and to search for factors affecting the accuracy of the analysis in order to identify differences between the values specified by the manufacturer and those obtained in the laboratory.Metods. Intermediate polymerization products based on isocyanates from two or more monomeric units used for the production of polyurethanes, the quality of which is determined by the optimal ratio of isocyanate and hydroxyl groups, were selected as the object of research. The NCO index was determined by the volumetric method based on the interaction of isocyanate groups with diethylamine, with confirmation of the results by methods of mathematical statistics.Results. the work analyzes currently known methods for determining the content of isocyanate groups in prepolymers and identifies differences in the technique of execution. A volumetric method for determining the NCO index based on the interaction of isocyanate groups with diethylamine was used. The solubility of industrial prepolymer samples was evaluated and the dissolution rate was calculated, on the basis of which the optimal volume of the solution and prepolymer samples were determined, providing an accurate determination of the isocyanate number. The adjusted conditions allowed us to reach the required value of the NCO index of the SKU prepolymer, calculated on the basis of static processing of the results and the construction of the Gauss distribution curve. Changes in the methodology make it possible to reach a certified value of the indicator, which allows its use for further calculations in the synthesis of polyurethane.Conclusion. Recommendations for determining the isocyanate index for the analysis of prepolymer by the volumetric method will help to monitor incoming raw materials for compliance with certificates to perform an accurate calculation of raw materials in the synthesis of polyurethane.Key words: prepolymer, polyurethane, isocyanate index, volumetric analysis, diethylamine, solubility.
The process of evaporation of a colloidal solution of stabilized Boron nitride nanoparticles
Authors: Loktionova I. V. , Abakumov P. V. , Kuzmenko A. P. , Kolpakov A. I. 
Published: October 2024

Purpose. Characterization of the chemical structure of boron nitride nanoparticles by IR spectroscopy during the evaporation of their colloidal system and their sizes by small-angle X-ray scattering.Methods. The solvent evaporation process from the colloidal system was studied using a Nicolet iS 50 FT-IR spectrometer in the mid-IR range (400 – 4000 cm-1), with an attenuated total reflectance accessory with a diamond crystal (incident angle of 45°) and a liquid cell (200 μL). The sizes of the colloidal particles were determined using an smallangle X-ray scattering diffractometer in linear collimation mode (resolution 0.03 nm-1, copper anode X-ray tube 2.2 kW, λ = 0.154 nm, exposure time 30 s).Results. The IR spectrum of boron nitride nanoparticles powder was measured, containing lines characteristic of cubic (952 cm-1) ) – c-BN and hexagonal crystalline phases (758, 1301, and 1372 cm-1) – h-BN. The average size of boron nitride nanoparticles in the colloidal system, according to small-angle X-ray scattering data, was 46 and 84 nm. The size of stearic acid, which acts as a stabilizing shell, was 0.8, 1.3, and 2.5 nm. Analysis of the IR spectra showed complete evaporation of the solvents (hexane and chloroform) from a drop of colloidal solution 1.2 mm thick within 30 minutes.Conclusion. In this work, the average sizes of boron nitride nanoparticles stabilized with stearic acid in a colloidal system were determined and the process of its evaporation was studied.
Effect of a Feedback Visit and a Clinical Decision Support System Based on Antibiotic Prescription Audit in Primary Care: Multiarm Cluster-Randomized Controlled Trial
Authors: Jeanmougin Pauline , Larramendy Stéphanie , Fournier Jean-Pascal , Gaultier Aurélie , Rat Cédric 
Published: October 2024

Background
While numerous antimicrobial stewardship programs aim to decrease inappropriate antibiotic prescriptions, evidence of their positive impact is needed to optimize future interventions.

Objective
This study aimed to evaluate 2 multifaceted antibiotic stewardship interventions for inappropriate systemic antibiotic prescription in primary care.

Methods
An open-label, cluster-randomized controlled trial of 2501 general practitioners (GPs) working in western France was conducted from July 2019 to January 2021. Two interventions were studied: the standard intervention, consisting of a visit by a health insurance representative who gave prescription feedback and provided a leaflet for treating cystitis and tonsillitis; and a clinical decision support system (CDSS)–based intervention, consisting of a visit with prescription feedback and a CDSS demonstration on antibiotic prescribing. The control group received no intervention. Data on systemic antibiotic dispensing was obtained from the National Health Insurance System (Système National d’Information Inter-Régimes de l’Assurance Maladie) database. The overall antibiotic volume dispensed per GP at 12 months was compared between arms using a 2-level hierarchical analysis of covariance adjusted for annual antibiotic prescription volume at baseline.

Results
Overall, 2501 GPs were randomized (n=1099, 43.9% women). At 12 months, the mean volume of systemic antibiotics per GP decreased by 219.2 (SD 61.4; 95% CI −339.5 to −98.8; P<.001) defined daily doses in the CDSS-based visit group compared with the control group. The decrease in the mean volume of systemic antibiotics dispensed per GP was not significantly different between the standard visit group and the control group (−109.7, SD 62.4; 95% CI −232.0 to 12.5 defined daily doses; P=.08).

Conclusions
A visit by a health insurance representative combining feedback and a CDSS demonstration resulted in a 4.4% (-219.2/4930) reduction in the total volume of systemic antibiotic prescriptions in 12 months.

Trial Registration
ClinicalTrials.gov NCT04028830; https://clinicaltrials.gov/study/NCT04028830