bluuebunny/crossref_metadata_2025_split huggingface dataset:
Adsorption of pentabromodiphenylether pollutant by metals (Si, Ge, Sn) encapsulated Zn12O12 nanoclusters: a computational study
Authors: Brown Onyebuenyi I. , Eba Maxwell-Borjor A. , Agwupuye John A. , Gber Terkumbur E. , Ikot Immaculata J. , Odey Joseph O. , Enamhe Dorncklaimz E. , Adeyinka Adedapo S. , Louis Hitler 
Published: November 2023

Abstract
In recent times, the use of nano-materials as detectors and sensors for various environmental systems is constantly being explored; however, the detection limit of most analytical instruments remains below the mark of 100 % efficiency. As a result, the efficacy of Zn

12

O

12

, Si

dop

Zn

12

O

12

, Ge

dop

Zn

12

O

12

, Sn

dop

Zn

12

O

12

and Pb

dop

Zn

12

O

12
nanostructured materials is examined in this work to detect 2,2,4,4,5-pentabromodiphenylether (dbph). Density functional theory (DFT) utilizing the ωB97XD/def2svp method was employed to investigate the sensor properties and adsorption potency of the nano-materials under consideration. Interestingly, dbph@Zn

12

O

12
emerged the best candidate for the efficient sensing of dbph with highest adsorption energy and minimal adsorption distance of −0.0554 kJ/mol and 2.8324 Å respectively. In the same vein, dbph@Zn

12

O

12
was shown to have the greatest stability, conductivity and least reactivity with energy gap value of 8.3299 eV for the adsorption of dbph. More so, the predominance of strong electrostatic bonds in the chemical interactions of the electrons in the QTAIM analysis follows the order; dbph@Zn

12

O

12
> dbph@Sn

dop

Zn

12

O

12
> dbph@Pb

dop

Zn

12

O

12
> dbph@Ge

dop

Zn

12

O

12
> dbph@Si

dop

Zn

12

O

12
. It follows from the data obtained herein that dbph@Zn

12

O

12
complex is the most stable and energetically favorable for the adsorption of dbph. This showed that Zn12O12 is a potential nanomaterial for detecting the presence of dbph compared to the studied nanomaterials.
Downregulation of CRHBP is associated with trophoblast invasion inhibition in recurrent pregnancy loss
Authors: Sun Fengrun , Cui Liyuan , Qian Jinfeng , Du Meirong , Wang Songcun 
Published: November 2023

In brief
Corticotropin-releasing hormone binding protein (CRHBP) is fundamental to the stress response and plays an important role in parturition during pregnancy. This study shows that abnormal CRHBP expression could be an early warning sign of recurrent pregnancy loss and that CRHBP knockdown could suppress HTR8/SVneo cell invasion by the PKC signaling pathway via interacting with CRH receptor 2.

Abstract
Trophoblast invasion is critical for placentation and pregnancy success. Trophoblast dysfunction results in many pregnancy complications, including recurrent pregnancy loss (RPL). Corticotropin-releasing hormone binding protein (CRHBP) is fundamental to the stress response and plays an important role in parturition during pregnancy via binding with CRH. To further characterize its function in early pregnancy, we explored the expression of CRHBP in villi during early pregnancy. Compared with normal pregnant women, we demonstrated that the expression of CRHBP decreased in the trophoblasts and villi in RPL patients and that knockdown of CRHBP expression could suppress HTR8/SVneo cell invasion significantly. Our further exploration indicated that the capacity of CRHBP for regulating trophoblast invasion was associated with the PKC signaling pathway via interacting with CRH receptor 2. These findings might provide a new fundamental mechanism for successful pregnancy and a new diagnostic and therapeutic target for RPL.
Is it Possible to Define the Boundaries of Hate Speech?
Authors: Župerka Kazimieras 
Published: November 2023

During the last few years, a phrase hate speech has become widespread as an expression of a legal concept in the Lithuanian language. In the laws of the Republic of Lithuania, the concept of hate speech has not yet been precisely defined and directly established. The usage of the combination of these two words expands the concept of hate, it loses at least somewhat clearer boundaries. However, based on this concept, intentions are expressed to reinforce the laws of administrative law regarding manifestations of hate speech.
In the article, the concept of the Lithuanian noun neapykanta (‘hate’) is explained by its usage in texts, the relationship between this word and other Lithuanian words with negative connotations has been analysed as well. The examples of unmeasured expansion of the concept of hate speech found in research works have been highlighted. Several more prominent cases of public speaking that had a wider resonance, which were associated with hate speech, are discussed from the point of view of language axiology.
Since negative words with a softer definition are not considered at the same level as hate, then prescribing (to) bully, (to) make fun of, (to) push around, (to) intimidate, (to) tease (concept expressed in corresponding words) to the definition of hate is a conceptual mistake. These emotional and verbal or non-verbal speech concepts can be associated with hate but they can also be described as just emotions “until hate”.
Replacing the compound speech that provokes hate with an abbreviated hate speech leads to confusion: different concepts are conflated, it becomes irrelevant, whether it is inciting hatred or just is associated with it – it still tends to be considered a crime (especially in cases where the case of public linguistic expression is related to the so-called vulnerable, protected groups of persons, for example, Gypsies/Roma, LGBT, migrants). Only the direct encouragement of hatred, the call for confrontation can be evaluated and more or less exactly formulated linguistically, and therefore, legally.
Optimization of resistance spot welding with surface roughness dissimilar mild steel with stainless steel
Authors: Ariyanto Ariyanto , Sukardin Muhammad Setiawan , Renreng Ilyas , Arsyad Hairul , Syahid Muhammad , Alwi Muhammad 
Published: November 2023

Resistance spot welding plays a critical role in the manufacture dissimilar material industry. However, there are differences in mechanical properties between mild steel and satinless steel so as to reduce the quality of welded joints. In order for differences in mechanical properties to be corrected, surface roughness was treated. The aim of this study was to optimize the welding parameters of DRSW with surface roughness by analysis using the Taguchi and Anova Methods. In this study discusses about investigates the Resistance spot welding parameters on weld geometry, mechanical properties, and SEM EDS on dissimilar materials of mild steel and stainless steel. The material thickness of the mild steel and stainless steel are 1 mm, respectively. The process parameters of the resistance spot welding joint used, example; surface roughness, current, welding time, and electrode force. Quality welding joint test results include weld geometry, mechanical properties, and SEM EDS. Weld geometry testing to determine the weld nugget profile. The mechanical properties test was shear tensile test, while the SEM EDS included macrostruture and microstructure observations. The results showed the highest nugget diameter 6.65 mm highest shear tensile strength 7.66 kN. The most influential parameter is current by 75.08 %, then surface roughness by 12.35 %. The highest tensile strength has fewer defects. Surface roughness treatment before welding is very good to make welding quality joints between mild steel and quality stainless steel increase. Surface roughness treatment was very good to be included when making welding procedures for welding engineers for welding processes resistance spot welding dissimilar mild steel with stainless steel.
Identifying the features of surface roughness and H2 bubble production on the super-hydrophobic properties of Al2O3 and Mg membranes
Authors: Subagyo Rachmat , Wardana I. N. G. , Widodo Agung Sugeng , Siswanto Eko , Nugraha Andy , Fadilah M. Munawar , Agusnaedi Agusnaedi , Ramadhani Ahmad Fadhila 
Published: November 2023

This research investigates Alumina (Al2O3) and Magnesium nano membrane layers using hybrid technology. Hybrid is a concept of combining two or more materials/elements to achieve something better. Hybrid technology was developed because of the possibility of combining materials/elements which, if used simultaneously, has more advantages than if used independently. The problem to be solved is to find the best composition of Alumina and Magnesium hybrid membranes. Superhydrophobic properties of the membrane are achieved at a percentage of Mg: 50 %, Al2O3:50 %. At a composition below 50 % Mg, the small surface roughness has a low surface tension, while the H2 production reaction by Mg is also low, so the surface tension carrying capacity of the gas and the roughness of the droplets is not strong, which causes the hydrophobicity to be low. In compositions above 50 % Mg, H2 production by high Mg makes bubbles cover the roughness peaks so that the surface tension is lower and changes the superhydrophobic to hydrophobic properties. At a high Mg percentage, H2 production is very large, while surface roughness decreases due to minimal Al2O3. As a result, the roughness grooves are unable to accommodate H2 gas bubbles, the bubbles completely cover the roughness peaks which are the source of surface tension so that the hydrophobic properties become hydrophilic. The results of this best hybrid composition can be used as a guide in making superhydrophobic membranes on Alumina (Al2O3) and Magnesium alloys. This membrane application is used as a filtration membrane in the water purification process. Superhydrophobic membranes are widely applied in membrane distillation, membrane gas absorption and pervaporation
Determining the technological parameters of electron-beam welding of high-strength titanium alloys
Authors: Fedosov Oleksiі , Karpovych Olena 
Published: November 2023

It is usually quite difficult to carry out deep penetration of thick-walled products from titanium alloys using conventional welding technologies. In this study, it was proposed to use electron beam welding under high vacuum conditions for the realization of 40 mm thick melting of VT23, VT3-1 alloys.
This paper considers the possibility of obtaining high-quality welded joints from high-strength titanium alloys having (a+β) two-phase structures. For the implementation of research works, samples were made from selected materials, samples were welded according to the specified modes, metallographic analysis was performed, and the level of mechanical properties was determined. The research results were verified under laboratory conditions.
The technological features of the processes of electron-beam welding of products with a thickness of 40 mm were considered; the parameters affecting the weldability of titanium alloys and their structure were determined. The welded samples were checked by X-ray non-destructive testing, the microstructure of the welds was studied, and the physical and mechanical properties of the welded joints were checked. It was established that a feature of titanium alloys VT3-1, VT23 is the need for heat treatment after welding under the base metal regimes to improve the characteristics of the welded joint. The resulting strength limit of the alloys after heat treatment reached values of 1250 MPa and more, while the impact toughness was at the level of 48–50 J·cm-2.
Modeling the welding process has made it possible to ensure the reproducibility of the characteristics of the welded joint at a level close to that of the base metal, to increase the quality indicators of welded joints, and to reduce the time required to test the technology. The studies of simulator samples showed compliance of the quality of welded joints with the predefined parameters.
Improvement of the vacuum evaporator for the production of paste-like semi-finished products with a high degree of readiness
Authors: Minenko Sofiia , Cherevko Oleksander , Skrynnik Viktoriia , Tesliuk Hennadii , Bondar Mariana , Skoromna Oksana , Liulchak Svitlana , Postadzhiev Alexander 
Published: November 2023

The object of this study is the process of cooking blended pureed mass based on apple, Jerusalem artichoke, cranberry, and hawthorn in an improved vacuum evaporation apparatus with a unified stirrer for the production of paste-like semi-finished products with a high degree of readiness. Conventional devices for cooking are associated with intermediate heat carriers, significant energy and metal consumption, the difficulty of stabilizing the temperature field under the conditions of a significant duration of the process, which prevents ensuring mobility, resource efficiency, and reducing the quality of resulting products. This led to the improvement of the vacuum evaporator by replacing the steam jacket with a film-like resistive electric heater of the radiating type, with the simultaneous use of a unified stirrer to increase the useful heat exchange surface by 0.6 m2. This was achieved by heating the internal space of the stirrer with the heater mentioned above, thereby forming the total area of heat exchange up to 2.8 m2, which is 28 % more than the area of the prototype (2.2 m)2. The rheological parameters of the resulting fruit and vegetable paste at a boiling temperature of 50...55 °C at a shear rate of 0.8...2.0 s-1 were determined, while the effective viscosity was in the range of 5.0...18.0 Pa·s. At the same time, the character of boiling kinetics in the improved vacuum-evaporating apparatus was 30 % lower than the indicator for the basic design MZ-2S-241a.
The improved vacuum-evaporator with a unified stirrer is characterized by reduced specific heat consumption for heating the loaded pureed semi-finished product by 13.8 %. By increasing the heating surface by 28 % and reducing the duration of the temperature load on the product according to experimental data in the device by 29.6 %
Synthesis of an electromechanical system of body tilt and recuperation of vibration energy for a high-speed electric train
Authors: Ozulu Anton , Liubarskyi Borys , Iakunin Dmytro , Dubinina Oksana 
Published: November 2023

This paper considers issues related to the undercarriage system of a high-speed electric train with body inclination and a vibration recovery system. The main suspension systems of the electric train body, which are currently used, were investigated. The existing shock absorption systems and alternative approaches and solutions for increasing the speed characteristics of electric rolling stock have been highlighted. A basic problem of these suspension systems was put forward, which is the lack of the possibility of recovery of oscillations, as well as the complexity of systems for tilting the body. The main dimensional and power parameters of the proposed promising shock absorber are presented. The characteristics of basic parameters of the electromechanical shock absorber were compared with those of a pneumatic spring shock absorber. A simulation model of a high-speed electric train with an electromechanical shock absorber was built in the MATLAB Simulink environment. The main units of the simulation model were defined and described, owing to which it is possible to simulate the inclination of the body to a given angle and the simulation of vibration energy recovery.
Based on the results of simulating the operation of an electromechanical shock absorber as part of the undercarriage of the electric locomotive, it was determined that the synthesis of this system makes it possible to tilt the body by 5 degrees in 2 seconds. It is also stated that the proposed system makes it possible to reduce the vibrations of the electric train body by 2 times, and to recover 84 W/h of vibration energy. The body tilt results are predetermined by the speed of the mechanism due to the absence of a compressor set used in the pneumatic system.
The scope of application of the vibration damper also includes the automotive field, subject to additional research into the form, amplitude of road surface vibrations and changes in overall parameters in accordance with the requirements
A structural model for building a system for the development of methodological competence and methods for evaluating its effectiveness
Authors: Biloshchytskyi Andrii , Omirbayev Serik , Mukhatayev Aidos , Kuchanskyi Oleksandr , Biloshchytska Svitlana , Andrashko Yurii , Toxanov Sapar , Faizullin Adil 
Published: November 2023

The paper develops a structural model for building a system for developing methodological competence. The structural model is built based on a service-oriented approach to developing large software complexes and includes six subsystems. Each subsystem is implemented as a separate microservice, which allows system scaling. The paper describes a technique that allows you to build a teacher’s competency map and evaluate its eight components: cognitive, didactic, project, informational, communication, reflective, monitoring, and personal-motivational. A four-level scale is proposed for assessing the level of competencies. A methodology for evaluating the effectiveness of the methodical competence development system based on the hierarchical expert method has been developed. The system was verified and implemented. According to the results of the system implementation, the intensification of the educational process and the improvement of the training quality of students were recorded. Students’ success in studying subjects has increased significantly. Namely, the number of bad students has decreased by 15 %, the number of «excellent» students has increased by 10 %, and the number of «good» students has increased by 18 %.
The paper touches upon creating information technologies adequate for improving the higher education system. The goal is the targeted development and implementation of information technologies in educational institutions and the creation and operation of integrated, flexible software to support a mixed system for organizing the educational process, as well as increasing the efficiency of implementing a mixed system for organizing the educational process.
Assessment of the possibility of using the fruits of the oriental persimo (Diospyros kaki L.) as a source of filter membranes based on the tensor approach
Authors: Khalilov Mushfiq , Ismayilova Melahet , Gasimova Afet , Kazimova İlhama , Maharramova Sevinj , Omarova Elza 
Published: November 2023

Like all raw materials of plant origin, persimmon fruits are considered a material rich in carbohydrates. This subtropical plant grows almost throughout the entire territory of the Republic of Azerbaijan. Despite the widespread distribution of this plant in the republic, very few types of products are produced from it. The main reason why persimmon fruits are not used effectively from a production point of view is that they have astringent properties. Since fruit carbohydrates play an important role in eliminating the tart taste of persimmons, the study of the carbohydrate complex was considered as a basic condition.
After fractionation of carbohydrates with a water-alcohol mixture, certain stresses arise in the filter residue, which consists of cellulose-lignin. These stresses are analyzed using tensors. It has been established that the size of the filter pores is about 0.005÷0.05 microns, and the volume of these pores is 0.062÷0.195 cm3/g. The clearance coefficient averaged 19.97 %.
It is known that the outer layer of a plant cell consists of cellulose and other structural compounds. These substances determine the porosity of the material. The mass fraction of the final product of the fractional residue, more precisely cellulose, averaged 0.63 %.
The use of the resulting filter membrane in the clarification of fruit juices has shown its usefulness in industry. It has been established that the selectivity of these membranes for various amino acids is 5÷18 %, and for minerals 1÷30 %. The lipid resistance of the membranes was high. It should be noted that cellulose has the ability to restore its structure and at the last stage acts only as a filter membrane. This explains the usefulness of the cellulose-lignin mixture as a membrane material
El ser humano como sujeto social
Authors: Gaviria Rojas León Darío , Nasif Arciniegas Jalal Othman 
Published: November 2023

Como sujeto social el ser humano interactúa con otras realidades, circunstancias, entornos y esto hace posible que sea considerado socialmente responsable en el cuidado de sí mismo, de los recursos naturales, de crear nexos interculturales y renunciar al individualismo absoluto en el que predomina el egoísmo, el narcisismo, la indiferencia ante las situaciones externas, a tal punto de fragmentar las redes y rutas de trabajo colaborativo e interacción colectiva.
El búfalo y el pájaro
Authors: Mendoza Muñoz Ricardo Alonso 
Published: November 2023

Este cuento se desarrolla en las lejanas llanuras africanas, que están al pie del majestuoso monte Kilimanjaro, un lugar de una hermosura inconmensurable donde se combina la calidez de sus paisajes con la frialdad y ferocidad de las bestias que habitan en aquel sitio.
El nevado del ermitaño
Authors: Enríquez Pantoja María Viviana , Caicedo Peña Juan Camilo , Velásquez Bravo Miguel Ángel , Lasso Ortiz Angie Paola , Vallejo Botina Jazmín Selene , Pérez Ramírez Luis Ángel 
Published: November 2023

Este cuento es una recopilación de palabras autóctonas, nariñenses y pastusas, donde se muestra el amor hacia lo nuestro, el amor a los antepasados y sobre todo el respeto hacia el lugar que nos vio crecer. Dentro del espacio académico de Comunicación Oral y Escrita se aborda una temática llamada Lenguaje, lengua y habla, la cual permite crear, amar y revivir el dialecto con el fn de dejar aﬂorar el amor y el autorreconocimiento mediante textos narrativos como el cuento.
Una aventura en el cañón
Authors: Mendoza Muñoz Ricardo Alonso 
Published: November 2023

Cuando desperté esa mañana del Domingo Santo, me sentía intranquilo, no pude dormir casi nada, me preocupaba lo que había pasado el día anterior; un control de policía instalado en la carretera nos impidió seguir avanzando para dirigirnos hacia la ciudad, algunos otros conductoresque también estaban detenidos comentaban que era por causa de un accidente muy grave que había sucedido en el km 20, en la curva llamada la vuelta negra.
El acontecer de la palabra (Conferencia)
Authors: Figueroa Arévalo Piedad Del Carmen 
Published: November 2023

Nos encontramos como lo que somos, un pueblo multiétnico y pluricultural, herederos de tradicionesenraizadas en las culturas: indígena, americana, española y también del África y del Asia, esta diversidad que se nota en nuestros rasgos, el modo de ser, sentir, y ver la vida; somos esa raza cósmica que proviene de todos los continentes y, creo que en este momento podríamos decir que de toda Colombia, de todos los puntos cardinales de este amado país.