bluuebunny/crossref_metadata_2025 huggingface dataset:
Clinical profile of COVID-19 patients admitted in a tertiary care hospital of Nepal: A descriptive cross-sectional study
Authors: Poudel Sujan Chandra , Poudel Shekhar , Shrestha Prinsa , Bhattarai Tulsi Ram , Mishra Aakash
Published: March 2023

Background: Coronavirus disease 2019 (COVID-19) causes mild to severe respiratory illness and is associated with ICU admission and mortality. Since data regarding clinical profile of COVID-19 patients in Nepal is still lacking, it is important to study clinical behaviour of COVID-19 in Nepal. In this study the demographic profile, clinical features, lab parameters, and outcomes in hospitalised COVID-19 patients in a tertiary care hospital are reported. Objective: To assess the clinical profile in terms of clinical symptoms, laboratory parameters, and outcome of COVID-19 admitted patients in a tertiary care hospital. Methods: This is a descriptive cross-sectional study conducted at KMCTH, from June 1, 2021 to July 31, 2021 after taking ethical clearance from institutional review committee. All patients infected with COVID-19 admitted in this hospital, from June 1, 2021 to July 31, 2021 were included by convenience sampling. Data were collected, and entry and analysis were done in Microsoft Excel Sheet 2007. Results: During the study period, 245 COVID-19 patients were admitted and were included in the study. The median age of the patients was 55 years, the mean age was 55 ± 17 years, and 139 (56.74%) were male. The common presenting complaints were cough in 180 (73.47%) followed by fever in 176 (71.84%) patients. Most common comorbidity found was hypertension in 89 (36.33%), followed by diabetes in 50 (20.44%). Conclusion: In this single-centred study, the characteristic features included presence of comorbidities, higher level of inflammatory markers, and high mortality rate in severe to critical hospitalised COVID-19 patients.
Experience-complexity gap: A new challenge for nursing
Authors: Alkhaqani Ahmed Lateef
Published: March 2023

Hospitals and health systems face a new shortage of nursing staff: a lack of experience. As older nurses retire and the influx of new nurses continues to grow, the net effect is a decline in the overall experience of the nursing workforce. At the same time, the provision of health care is becoming increasingly complex; call this phenomenon “the experience-complexity gap.” If not addressed, the gap between experience and complexity will widen and put quality and safety.
Panuveitis after covishield vaccination in an undiagnosed immunocompromised patient: A rare case report from Nepal
Authors: Bista Bipin , Yadav Reena , Sanyam Sandip Das , Chaudhary Sushma , Chaudhary Abinash , Gupta Sharad
Published: March 2023

With the emergence of vaccines for the novel coronavirus, a new ray of hope came into human society. Yet the adverse effects of vaccination on some candidates without allergic tests might cause a detrimental change in the future. An interesting case of panuveitis in a 34-year-old male after the ChAdOx1 nCoV19 (covishield) vaccination is reported here. The respective management of the patient was done after comprehensive ocular and systemic evaluation. It is understood that vaccination is vital in controlling this pandemic, but the immunologic response due to this novel vaccine is also a concern.
Capacidad física de trabajo y composición corporal
Authors: Piragauta Ardila Luis Alberto , Echavarría Calderón Marcela , Cardenas Cerón Roberto
Published: March 2023

Introducción: la capacidad física de trabajo (CFT) se describe como el conjunto de tareas utilizadas para llevar a cabo las actividades de la vida diaria comparada con individuos sanos; incluye fuerzas de agarre y de abdomen, equilibrio, flexibilidad, velocidad de marcha y capacidad aeróbica.  Por eso la CFT y el índice de masa muscular esquelético (IMME) tienen relación entre sí y son susceptibles de mejorar si se realiza entrenamiento físico. Objetivo: determinar si un programa de entrenamiento supervisado y controlado una vez a la semana durante seis meses es efectivo para cambiar la CFT y el IMME en sujetos mayores de 18 años. Métodos: estudio observacional, analítico, de cohorte retrospectiva, de 565 pacientes que asistieron a un programa de entrenamiento supervisado y controlado una vez a la semana durante seis meses.  Resultados: hay mejoría de la media de la CFT en -8.59 puntos al finalizar la intervención (P=0.000) y aumento del IMME en -0.06 puntos (P=0.002). Conclusiones: este estudio sugiere que una intervención de una hora guiada y supervisada una vez a la semana durante seis meses brinda beneficios en variables de la CFT con mejoría del IMME, que se explica por cambios en la microestructura muscular (mejoría en la capacidad de realizar un trabajo por unidad de masa muscular).
Manejo endoscópico de la enfermedad por reflujo gastroesofágico (ERGE)
Authors: Peñaloza Ramírez Arecio , Barrera Latorre Mario Hugo
Published: March 2023

La enfermedad por reflujo gastroesofágico (ERGE) se manifiesta cuando el quimo gástrico refluye al esófago y pasa de ser fisiológico a sintomático y patológico. Es frecuente a nivel mundial y de difícil abordaje diagnóstico debido a la multitud de síntomas y presentaciones, haciendo que su enfoque terapéutico sea complejo. Existen múltiples opciones de tratamiento siendo el farmacológico basado en inhibidores de bomba de protones (IBP) la piedra angular. El manejo quirúrgico está descrito pero reservado a ciertos pacientes específicos. La terapia endoscópica surge como otra opción con indicaciones similares a la cirugía, pero con las ventajas propias de los procedimientos endoscópicos. Se han descrito varias técnicas endoluminales con pobres resultados, que no se han logrado popularizar.
Book Review: Internet for the People: The Fight for Our Digital Future by Ben Tarnoff
Authors: Maia Eduardo
Published: March 2023

This article reviews the book Internet for the People: The Fight for Our Digital Future by Ben Tarnoff.
Conflicts in East Asia: How Are They Different from Europe’s?
Authors:   MGIMO University, Moscow, Russia, Streltsov D.V.
Published: March 2023

The experience of security institutions built in Europe in the second half of the 20th century does not work in Asia. But the threats that turned Europe into the most explosive part of the world in the last century appear to be quite relevant for Asia as well.
“Irreplaceable” Partner for “Irreplaceable” Superpower
Authors:   MGIMO University, Moscow, Russia, Suchkov M.A.
Published: March 2023

Will India be a powerful A-league independent player or will it shrink geopolitically to become the “West Germany of the 21st century”―a buffer state for regional containment of America’s main opponent?
From Consonant Rhetoric to Practical Steps
Authors:   National Research University-Higher School of Economics, Moscow, Russia, Maslov A.A. , Sviridov V.Yu. ,   National Research University–Higher School of Economics, Moscow, Russia
Published: March 2023

Most African countries will not expose their own successfully functioning financial institutions to secondary sanctions, but nor will they object to the creation of new ones with the participation of Russia and friendly states.
Food as a Weapon, Weapons as Aid
Authors:   University of Urbino Carlo Bo, Italy, Pellicciari Igor
Published: March 2023

Weapon supplies have become fully legitimate as a form of assistance. The right to self-defense is, in fact, recognized as a basic need. Therefore, the need for weapons is equated with the need for humanitarian aid.
Nor Concession, nor a Gesture, but a Necessity
Authors:   Ambassador Extraordinary and Plenipotentiary of the Russian Federation to the USA, Antonov A.I.
Published: March 2023

Review of the book Russian-American Nuclear Nonproliferation Dialogue. Lessons Learned and Road Ahead. Edited by Vladimir A. Orlov and Sergey D. Semenov. Palgrave Macmillan Singapore, 2022 385 p.
It’s Silly of Us to Try to Fool Each Other. In Lieu of Introduction
Authors: Loe Erlend
Published: March 2023

An excerpt from the phantasmagory novel Fvonk (2011).
Image of a Multipolar World
Authors:   The Ministry of Foreign Affairs of the Russian Federation, Drobinin A.Yu.
Published: March 2023

The crystallization of civilizations (let’s call them civilizational platforms), with each of them having a unique structure, and the development of ties between them is what paves the way for creating a fundamentally new system.
The Temptation of Ready-Made Answers
Authors:   The Institute of Philosophy and Law of the Urals Branch of Russian Academy of Sciences, Ekaterinburg, Russia, Fishman L.G.
Published: March 2023

Whatever the past, it can only be a guide, following which one has to create something of his own. It would be better to do this consciously, inventing a tradition rather than misleading oneself and others, and considering traditional values a resource like a forest or oil.
Contemporary History: A Short Course
Authors:   European University at Saint-Petersburg, Russia, Miller A.I.
Published: March 2023

The events of 2022 drew a line under Vladimir Putin’s attempts to preserve or assert by means of political and historical polemics a narrative about the European past that would suit Russia. The scale of the upheaval leaves very slim chances of getting back to some agreed version of the European past. If at all.
Wood production and financial return in two silvopastoral systems
Authors: Boscana Mariana , Bussoni Adriana , Bentancur Oscar
Published: March 2023

Silvopastoral systems combine forestry and livestock activities, establishing productive and economic interactions that must be known in order to project their viability in the medium to long term. Important aspects of these systems are spacing arrangement, wood production and economic return. The present study was carried out on a farm with commercial forestry and aimed at evaluating wood production and its financial return in two silvopastoral systems of Eucalyptus globulus: Conventional Forestry System (CFS) in a plantation arrangement of 3.5×2.7 m, and Silvopastoral System (SSRA) (2×2)+8 m of alley. Each system was evaluated in three strata, at age 68 months. No differences (p> 0.05) were found for Survival (S), Diameter at Breast Height (DBH), Height (H), and Dominant Height (DH) between CFS and SSRA values. However, both systems differed (p <0.05) in wood production values (m3/ha) at age 68 months: CFS produced 83.7 m3/ha, while SSRA produced 60 m3/ha. Optimal technical rotations estimated were 12 and 13 years for CFS and SSRA, respectively. The Equivalent Annual Income (EAI) was 140 and 141 US$/ha/year for CFS and SSRA, respectively. However, SSRA requires a lower plantation investment and provides greater liquidity throughout the rotation. Forestry systems can be designed in ways that allow greater spatial integration of livestock, becoming more complementary systems.
Varijabilnost morfoloških svojstava listova europske crne topole i hibridnih crnih topola u klonskom arhivu u Žepču
Authors: Memišević Hodžić Mirzeta , Ballian Dalibor
Published: March 2023

Crna topola (Populus nigra L.) je jedna od najznačajnijih europskih vrsta drveća koja nastanjuje aluvijalna staništa uz obale velikih rijeka. Danas je jedna od najugroženijih vrsta šumskog drveća zbog devastacije staništa, regulacije riječnih tokova, i pretjerane ekspolatacije, kao i unošenja alohtonih vrsta drveća s kojima je hibridizirala. Cilj ovog istraživanja je utvrditi varijabilnost morfoloških svojstava listova crne topole unutar i između klonova autohtonih populacija i hibrida, te između riječnih slivova u Bosni i Hercegovini, kako bi se učinkovitije pristupilo zaštiti i oplemenjivanju ove vrste.Istraživan je materijal iz klonskog arhiva crnih topola. Arhiv je osnovan 2005. godine u Žepču, od klonova sa 161 stabla autohtonih crnih topola iz 26 populacija širom Bosne i Hercegovine (iz slivova 6 rijeka) te 15 hibridnih vrsta topola. Mjereno je po 5 listova od svakoga klona, a uziman je peti list od vrha glavnog izbojka. Mjerenje je vršeno digitalnim pomičnim mjerilom sa preciznošću od 0.1mm i kutomjerom. Mjereni su: dužina plojke, širina plojke, dužina peteljke, ukupna dužina lista, ugao insercije prvog bočnog nerva i centralnog nerva, udaljenost između najšireg dijela lista i baze lista, broj zubaca u dužini od 1cm iznad najšireg dijela lista. Podaci su obrađeni korištenjem SPSS 26.0 i EXCEL-a, i to prema populacijama i prema slivovima rijeka.Analizom varijance utvrđene su statistički značajne razlike između ispitivanih populacija, kao i između slivova rijeka, za sva istraživana svojstva. Najveću varijabilnost pokazalo je svojstvo dužine peteljke, a najmanju kut insercije prvog bočnog i centralnog nerva. Populacija dlakavih crnih topola Čapljina ima najmanje dimenzije listova i značajno odstupa u svim mjerenim svojstvima od ostalih. Najčešći broj zubaca na 1cm lisnog ruba je 4 zupca koji se pojavljuje na 38,3% listova. Ovo istraživanje daje mali uvid u morfološke karakteristike crnih topola u klonskom arhivu Žepče, te može predstavljati osnovu za daljnja istraživanja u cilju potpunijeg razumijevanja svojstava crnih topola potrebnih za uspješan nastavak rada na oplemenjivanju ove vrste.
Numerical modeling of radiation-induced reactions: Fricke dosimeter at 298 K, 198 K, and 77 K
Authors: Paredes Arriaga Alejandro , Rivera Ana Leonor , Frías Diego , Ramos Sergio , Negrón Mendoza Alicia
Published: March 2023

The Fricke dosimeter is a widely used gamma radiation dosimetry system. The system is based on the detection of Fe2+ to Fe3+ oxidation in an aqueous solution of ferrous sulfate in sulfuric acid, exposed to ionizing radiation in the presence of oxygen. The system is formed by a series of highly dependent chemical reactions. We developed a numerical model of coupled differential equations based on the mass balance; each equation incorporates information about the formation and breakdown of each molecule, as well as a term that represents an external source of radiation. The numerical model can reproduce the behavior of the experimental data at room temperature. We proposed a correction factor to simulate the behavior of the dosimeter at temperatures of 198 K and 77 K, respectively, when the system is in a thermal bath of dry ice or liquid nitrogen. This model could support a variety of experimental challenges for radiation at low temperatures in different fields of industry and could have relevance for astrobiology problems by offering the possibility of simulating reactions in comets and other exoplanetary bodies.
Open Citations as a Tool for Bibliometric Verification and Transparency and for Correcting Erroneous References
Authors: Teixeira da Silva Jaime A. , Huang Chun-Kai (Karl) , Ortega José Luis
Published: March 2023

Citations in a scientific paper reference other studies and form the information backbone of that paper. If cited literature is valid and non-retracted, an analysis of citations can offer unique perspectives about the supportive or contradictory nature of a statement. Yet, such analyses are still limited by the relative lack of access to open citation data. The creation of open citation databases (OCDs) allows for data analysts, bibliometric specialists, and other academics interested in such topics to independently verify the validity and accuracy of a citation. Since the strength of an individual’s curriculum vitae can be based on, and assessed by, metrics (citation counts, altmetric mentions, journal ranks, etc.), there is interest in appreciating citation networks and their link to research performance. Open citations would thus not only benefit career, funding, and employment initiatives, but they could also be used to reveal citation rings, abusive author–author or journal–journal citation strategies, or to detect false or erroneous citations. OCDs should be open to the public, and publishers have a moral responsibility of releasing citation data for free use and academic exploration. Some challenges remain, including long-term funding, and data and information security.
Deep Learning - Prediksi dan Resiko Investasi Enam Saham Bank di Indonesia
Authors: Widanti Nurdina , Surawan Tri , Karno Adhitio Satyo Bayangkari , Digdoyo Aji , Kurniawati Nani , Nursalam Rachmat , Agusta Harini
Published: March 2023

Stock prediction and risk level are important for investors, but this ability can only be done by experts and takes a long time. The rapid development of technology today demands that decisions be made quickly and precisely. Deep Learning (DL) is one of the Artificial Intelligence (AI) methods that are able to analyze and predict stock values accurately, in real-time, and without much human intervention. Analysis of risk and correlation between stocks by calculating daily returns using the moving average (MA) method. Dataset of 6 bank shares obtained from yahoo-finance, namely Bank Central Asia (BBCA), Bank Rakyat Indonesia (BBRI), Bank Mandiri (BMRI), Bank Nasional Indonesia (BBNI), Bank Rakyat Indonesia Syariah (BRIS), and Bank Tabungan Negara (BBTN). The volume of share sales increased significantly only in BBRI and BBNI shares, although 5 bank shares (except BRIS) experienced price increases. The highest correlation occurred between BBNI and BMRI shares with a value of 97%, 92% between BMRI and BBCA shares, and 91% between BBNI and BBCA. Analysis of risk and expected return shows that BRIS has the highest risk and expected return of 0.042245 and 0.002986, respectively. BBCA shares have the lowest risk and expected return at 0.015392 and 0.000695, respectively. The results show that future predictions have decreased, namely BBRI, BBNI, and BBTN, and rose for BBCA, BMRI, and BRIS stocks.
Analisa Bubble Welding pada Proses Pengelasan Material Termoplastik SAN AS Menggunakan Mesin Ultrasonic Welding
Authors: Wibowo Fogot Endro , Wismiana Evyta , Rahmasari Fauzhia , Prasetyo Dimas Adi
Published: March 2023

The main problem that occurs in most ultrasonic welding processes on thermoplastic SAN (AS) materials that use ultrasonic welding machines is the selection of inappropriate parameters. This will cause various defects in the product, one of which is bubble welding. One of the most influential parameters on the welding results is the frequency and current parameters. This is because this parameter has a fairly high level of sensitivity to the welding results. Therefore, the purpose of this study was to examine the effect of frequency and current on the product produced by welding on 5 different parameters using 10 available samples. To determine the effect of the parameters of the magnitude of the frequency and current, the inspection method is used. This method aims to visually test the quality of the welding results. Based on the test, the results were obtained that by using the parameters of the frequency magnitude of 8 - 14 Hz and current of 15 - 18 amperes can produce the best welding results.
Distribusi Suhu dan Kecepatan Aliran Udara dari Sistem Heat Pump Kompresi Uap untuk Ruang Pengering Tipe Drum Horizontal dengan Bantuan Computational Fluid Dynamics
Authors: Biksono Damawidjaya , Saefudin Deny Bayu , Rosihan War’an , Hakim Rachman , Wicaksono M. Faisal , Nulhakim Lukman , Nurohman Arif
Published: March 2023

Model drum dryer digunakan untuk mengeringkan berbagai biji-bijian atau produk pertanian. Salah satu kegunaannya adalah untuk mengeringkan gabah. Pemilihan desain silinder tipe horizontal yang digunakan dalam pengeringan ini akan mempengaruhi distribusi udara yang memasuki ruang pengering. Penelitian ini bertujuan untuk mengetahui distribusi kecepatan udara dan distribusi suhu dalam ruang pengering tipe silinder horizontal. Sehingga hasil simulasi akan mengetahui yang optimal bahwa proses pengeringan tersebut merata. Metode yang digunakan dalam penelitian ini adalah percobaan virtual dengan menggunakan software Computational Fluid Dynamics (CFD) sehingga hasil simulasi dapat memberikan gambaran distribusi kecepatan aliran udara pada drum dryer untuk memudahkan penentuannya desain ruang pengering. Sedangkan variasi kecepatan aliran udara menggunakan "4,5" m/s, "6,75" m/s, dan "9" m/s dan suhu "38,14" °C, "39,60" °C, "40,17" °C dan "41,55" °C. Dari variasi tersebut hasil simulasi CFD yang paling optimal didapat pada variasi kecepatan aliran udara sebesar 9 m/s dan temperatur 41,55 °C dengan nilai perpindahan kalor yang diperoleh di dalam chamber dan pengeringan dinding, masing-masing sebesar 3.931 W dan 31.354 W.
Isolation and Spatial Structure of 5,7-Dihydroxy-6,3′,4′-Trimethoxyflavone
Authors:   Karagandy University of the name of academician E.A. Buketov, Kazakhstan, Turdybekov Кoblandy M. , Rakhimova Bibilul B. ,   Karaganda Medical University, Kazakhstan, Makhmutova Almagul S. ,   Karaganda Medical University, Kazakhstan, Gatilov Yurii V. ,   N.N.Vorozhtsov Novosibirsk Institute of Organic Chemistry, Russia, Adekenov Sergazy M. ,   JSC “International Research and Production Holding “Phytochemistry”, Karaganda, Kazakhstan
Published: March 2023

The article presents the results of a chemical study of semi-dry wormwood (Artemisia semiarida), an endemic plant of Kazakhstan. The amount of extractive substances was obtained by extraction with chloroform from air-dried crushed above-ground part of the plant collected in the vegetative phase. The compound was isolated using a column chromatography method. Silica gel of the KSK brand was used with the ratio of the sum of substances – carrier = 1:10. When the column was eluted with a 13:7 petroleum ether – ethyl acetate mixture, a yellow crystalline substance of the composition C18H16O7 with m.p. 234–237° C was obtained (recrystallization from ethyl acetate). The structure of the obtained compound (5,7-dihydroxy-6,3′,4′-trimethoxyflavone or eupatilin) was established by analysis of IR and NMR spectra. The spatial structure of eupatilin was determined by X-ray diffraction. In the crystal structure of 5,7-dihydroxy-6,3′,4′-trimethoxyflavone the rotation of the phenyl ring relative to the main framework (chromene ring) was found to be only 4.1°. Four conformers with different rotations of the phenyl ring (the torsional angles of O1C2C1′C2′ are 30°, 140°, 210° and 320°, respectively) and small energy barriers (about 8.4 kJ/mol) can be realized in the free state of the molecule.
The Effect of Liquid Active Media on the Character of Equilibrium Swelling of Copolymers Based on Polypropylene Fumarate Phthalate with Acrylic Acid
Authors:   Karagandy University of the name of academician E.A. Buketov, Kazakhstan, Sarsenbekova Akmaral Zh. , Burkeyev Meyram Zh. ,   Karagandy University of the name of academician E.A. Buketov, Kazakhstan, Zhumanazarova Gaziza M. ,   Karaganda Industrial University, Temirtau, Kazakhstan, Kudaibergen Gulshakhar K. ,   Stem Cell Laboratory, National Center for Biotechnology, Astana, Kazakhstan, Nasikhatuly Yermauyt ,   Karagandy University of the name of academician E.A. Buketov, Kazakhstan
Published: March 2023

The article is devoted to the study of the influence of external factors on copolymers based on poly(propylene fumarate phthalate) with acrylic acid. In the present work, the effect of low-molecular salts on the swelling rate of the synthesized copolymers was studied. The surface morphology was examined using SEM. The swelling rate of the studied polymers depends on many factors, including the nature of the polymer and the solvent, the presence of electrolytes, changes in pH and ambient temperature, the molecular weight of the polymer, etc. It is assumed that the polymer network of copolymers mainly consists of links of unsaturated polyester resin. The results show that the ratio of monomer units in the copolymer significantly affects the susceptibility of the polymer gel to the presence of low-molecular salts. Changing the properties of the comonomer has been shown to produce hydrogels that can swell or collapse due to changes in ionic strength or the thermodynamic quality of the solution. By varying the ratio of the comonomeric units, the intervals of swelling and contraction of polymer meshes inherent in polyelectrolyte bodies with the same charges were adjusted. It was also found that the polymers under consideration belong to anionic meshes.
Synthesis, Characterization and Environmental Application of Copper Oxide Nanoparticle obtained Using Aqueous Extract of Schrebera Swietenioides Roxb.
Authors:   PVP Siddhartha Institute of Technology, Kanuru, Vijayawada, Andhra Pradesh, India, Tulasi S. Lakshmi , Sumalatha P. ,   Seshadri Rao Gudlavalleru Engineering college, Gudlavalleru. Andhra Pradesh, India, Rani N. Usha ,   PVP Siddhartha Institute of Technology, Kanuru, Vijayawada, Andhra Pradesh, India, Peddi Pavani ,   PVP Siddhartha Institute of Technology, Kanuru, Vijayawada, Andhra Pradesh, India
Published: March 2023

The goal of the present study was to synthesize the nanoparticles using green methodology with the use of the aqueous plant extract of S. swietenioides. The copper oxide nanoparticle has been synthesized using aqueous root extract of S. swietenioides as a green reducing agent and copper sulfate as source of the metal ions. Formation of the nanoparticles in the reaction mixture was preliminary confirmed by the UV-Vis spectroscopy method. The FT-IR analysis of the synthesized nanoparticles shows the involvement of various bioactive functional groups in the formation of nanoparticles. The UV–Vis absorption spectra indicate the characteristic maximum absorption peak at a wavelength of 340 nm. This confirms the formation of nano-sized copper particles. The SEM analysis of the synthesized copper oxide nanoparticles confirms that the particles have mostly spherical shape with rough surfaces and the size of 21-43 nm. The copper nanoparticles in the media of the aqueous root extract of S swietenioides have been studied for their applications in the photo catalytic reduction of pollutant dyes and metals. The synthesized nanoparticles have been characterized and it was proved that the particles were nano-sized and contained high metal percentage.
Recent Advances in Layered Na2Mn3O7 Cathode Materials for Sodium-Ion Batteries
Authors:   Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, Kazakhstan, Rakhymbay Lunara , Shugay Bagdaulet ,   Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, Kazakhstan, Karlykan Maksat ,   Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, Kazakhstan, Namazbay Alibi ,   Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, Kazakhstan, Konarov Aishuak ,   Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, Kazakhstan, Bakenov Zhumabay ,   Department of Chemical and Materials Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Astana, Kazakhstan
Published: March 2023

There has been an increasing amount of attention paid to the different technologies that are used in energy production and storage in the context of day-to-day operations, which range from small-scale applications to large-scale applications, which are all equally important. As far as energy storage systems are concerned, Liion batteries are the market leader due to their high energy and power density, making them one of the most popular choices. Despite this, a significant concern is the scarcity of lithium resources and other metals that are needed for cathode material, such as cobalt and nickel, in the long run. Recent research has focused on alternative energy storage systems to mitigate these concerns. Due to sodium's widespread availability and similar chemistry to lithium-ion batteries (LIBs), sodium-ion batteries (SIBs) are considered the most promising next-generation alternatives. Being competitive in the market today requires the development of cathode materials that are of high performance. Among the studied materials, the Na2Mn3O7 electrode displayed high capacity. In addition, the low price of sodium and manganese makes it even more attractive. In this work, we summarized the recent progress in studying and enhancing the Na2Mn3O7 cathode material.
Simple and Efficient Method for One Pot Multicomponent Synthesis of 3,4-Dihydropyrimidin-2-(1H)-One Derivatives Catalyzed by Organocatalyst: Benzoic Acid
Authors:   Department of Chemistry, Anandibai Raorane Arts, Commerce and Science College, Vaibhavwadi, Dist. Sindhudurg, Maharashtra, India, Gopula Venkatesh B. , Pathan Mohsin K. ,   Department of Analytical Method Development Lab (R&D), Jamjoom Pharmaceutical, Jeddah, Saudi Arabia
Published: March 2023

The Biginelli reaction is one the useful multicomponent reactions and a very appropriate reaction for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones derivatives. These 3,4-dihydropyrimidin-2(1H)-ones have biological and pharmacological properties which make them a very important class of medicinal chemistry. Although they are an important class of medicinal chemistry, the syntheses of these compounds have been catalyzed by large number of strong Bronsted acids and Lewis acids under thermal conditions. Small organic molecules, organocatalysts, have been used as catalysts for the Biginelli reaction in a small number as compared to Bronsted acids and Lewis acid. Benzoic acid, which is a small organic molecule, although an acid, has never been tested for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones. Benzoic acid is an inexpensive, non-toxic molecule, it has been successfully tested here as a catalyst for the one-pot three component synthesis of 3,4-dihydropyrimidin-2-(1H)-one derivatives via Biginelli reaction between β-keto ester, a variety of aromatic aldehydes and urea or thiourea under thermal conditions using 20 mol% benzoic acid in acetonitrile solvent refluxed for 12 h to give good to high yields. This synthetic method includes inexpensive, non-toxic, easily available benzoic acid as a catalyst and is carried out in a simple operational procedure.
Design, Formulation and Optimization of Peel-Off Face Mask Gel for the Symptomatic Treatment of Rosacea
Authors:   DM WIMS College of Pharmacy, Wayanad, Kerala, India, Raju Tina
Published: March 2023

The aim of this research work was to design formulate and optimization peel off face mask for the treatment of Rosacea. Among the 4 different types of rosacea, this research work aims to develop a user-friendly symptomatic treatment for the types which affect the facial skin. The peel off mask was formulated using 4%, 6%, 8%, 10% and 12% polyvinyl alcohol (PVA) as a gelling agent and the main ingredient was chamomile oil. Evaluation of peel off mask included physical characteristics (organoleptic properties, homogeneity, viscosity, spreadability, film drying time), chemical characteristics (pH value), stability and antimicrobial activity. The variation in PVA affects the pH value, viscosity and film drying time significantly. Stability test showed that all peel off mask show no significant changes at room temperature with and without exposure to sunlight and at low temperature. The peel off mask containing chamomile oil using 10% PVA has the inhibitory effect against bacteria (S. aureus, E. coli) and fungi (C. albicans) as compared with the positive controls (clindamycin gel, gentamycin and clotrimazole gel). Variation in the concentration of PVA in the formula affected the physical, chemical characteristic and antimicrobial activity of the chamomile oil peel off gel face mask significantly. The preparation using 10% PVA was found to be the best formula with optimal results and better antimicrobial action
A Concise Review on Current Omicron Variants and Subvariants (SARS-Cov-2) and Effective Vaccines against them
Authors:   Department of Pharmaceutics, Nibha Institute of Pharmaceutical Sciences, Rajgir, India, Jahangir Mohammed Asadullah
Published: March 2023

In late 2002 and early 2003, the SARS coronavirus and a new variant of the virus emerged in China and quickly spread around the globe. These viruses were easy to cultivate in tissue culture, which made it possible to study their genomic structure which were significantly different from human and animal coronavirus. The Covid-19 outbreak is a Group 2B Coronavirus. The genomic sequence of SARS-CoV-2 isolated from humans showed a similarity to SARS of 79.5%. The D614G mutation in the SARS-CoV-2 spikes was discovered at the beginning of March 2020. In the second wave of the SARS-COVID-2 epidemic in 2021, a number of novel COVID variants have been reported since the 2020 COVID outbreaks. The Omicron Variants, which were reported after the second wave in late 2021, is one of them. This concise review reports about Classification of new COVID-19 variants, Omicron variants and subvariants and their differences, and current vaccines in use against the newly mutated variants.
The Effect of Training on Employee Performance by Mediating Organizational Commitment and Motivation at the Labuhanbatu Youth and Sports Culture and Tourism Service
Authors: Siagian Mahroni Permata Indah , Siregar Zulkifli Musanip , Rambe Bhakti Helvi
Published: March 2023

The study aims to analyze the effect of training on employee performance with organizational commitment and motivation as mediating variables. This research was conducted at the Labuhanbatu Youth and Sports Culture and Tourism Office. This study uses a quantitative method with path analysis (Path Analysis). This study uses an analytical tool in the form of IBM SPSS 25 Software to facilitate the analysis process. On the results of the t-test on training (X) on organizational commitment (Z1) it has a tcount (3.84) > ttable (1.66) which means Ha is accepted and Ho is rejected, with a significance value smaller than the probability value or 0.000 <0 .05 it can be concluded that training (X) has a positive and significant influence on organizational commitment (Z1). The t-test on training (X) on motivation (Z2) has a tcount (4.18) > ttable (1.66) which means that Ha is accepted and Ho is rejected, with a significance value smaller than the probability value or 0.000 <0.05, so it can be concluded that training (X) has a positive and significant effect on motivation (Z2). The t-test on training (X) on employee performance (Y) has a tcount (5.54) > ttable (1.66) which means Ha is accepted and Ho is rejected, with a significance value smaller than the probability value or 0.000 <0.05 it can be concluded that training (X) has a positive and significant influence on employee performance (Y). The t-test on organizational commitment (Z1) to employee performance (Y) has a tcount (7.99) > ttable (1.66) which means that Ha is accepted and Ho is rejected, with a significance value smaller than the probability value or 0.000 <0. 05 it can be concluded that organizational commitment (Z1) has a positive and significant influence on employee performance (Y). The t-test on motivation (Z2) on employee performance (Y) has a tcount (11.20) > ttable (1.66) which means Ha is accepted and Ho is rejected, with a significance value smaller than the probability value or 0.000 <0.05 it can be concluded that motivation (Z2) has a positive and significant influence on employee performance (Y).
Analysis of Personnel Management Strategy in Improving Human Resources Performance in Sharia Banking
Authors: Fitri Zakiyyah Nur , Hasan Asyari
Published: March 2023

Banking is one of the institutions engaged in finance that plays a role in efforts to advance the country’s economy. As an institution whose role is to advance the country’s economy, the performance of employees at the institution is highly valued. In this assessment, there is a strategy that has been determined by the personnel management to improve the performance of these human resources. The study aims to determine how the personnel management strategy in an effort to improve employee performance at Bank Muamalat Bengkulu Branch office. This research is field research, with a qualitative research approach. It uses a purposive sampling technique, namely the technique of sampling data sources based on certain considerations. The researchers made employees at Bank Muamalat Bengkulu Branch Office as subjects/informants a total of 5 people. Based on the results of the study, it can be concluded that the personnel management strategy in an effort to improve the performance of human resources at Bank Muamalat Bengkulu Branch Office is carried out independently, in class, and periodically trained.
The Effect of Training, Leadership Styles, Affective Commitment, and Job Satisfaction on Turnover Intention
Authors: Manggasa Ryan , Tanuwijaya Justine
Published: March 2023

This study aims to analyze the effect of training on affective commitment, leadership style on affective commitment, affective commitment on job satisfaction and job satisfaction on turnover intention. Research conducted at PT Pertamina International Refinery in West Papua using explanatory research in accordance with quantitative research methods. The technique of collecting data is through a questionnaire. The population and sample are 120 respondents. Data analysis used simple linear regression analysis, after going through validity and reliability tests and classical assumption tests. The results of the study found that training had a significant effect on affective commitment. Leadership style has no significant effect on affective commitment. Affective commitment has a significant effect on employee job satisfaction. And job satisfaction has a significant effect on turnover intention at PT. Kilang Pertamina International West Papua. Job satisfaction is positive on the intention to move means that the intention to move from employees can not be separated from job satisfaction, if employees are satisfied working at PT. Pertamina Refinery, employees will not have the intention to move. Conversely, if employees are not satisfied with their work, there will be a desire or intention from employees to move
The Influence of Competence, Religiosity, and Work Motivation on the Performance of Fishermen Through Work Ethic as an Intervening Variable
Authors: Yusnar Muhammad , Sugianto Sugianto , Ridwan Muhammad
Published: March 2023

Performance is the work accomplished by an individual in doing the work commanded based on abilities and experience. Islam teaches that work must be done not only to fulfill the needs of the world but also as a means of worshiping Allah SWT. This research aims to analyze the effect of competence, religiosity, and work motivation on the performance of fishermen in Sei Apung Jaya village with work ethic as an intervening variable. The study is quantitive with a survey approach of 97 respondents. The data analysis method used is path analysis with the SPSS version 20 program. The results of the study found that competence and work motivation had a significant effect on work ethic. Religiosity has no effect on work ethic. Competence, work motivation, and work ethic have a significant effect on performance. Religiosity has no effect on performance. Competence, religiosity, and work motivation have no effect on performance through work ethic as an intervening variable.
The Effect of Islamic Corporate Governance and Maqashid Sharia Index on Firm value with Islamic Social Reporting as a Moderating Variable
Authors: Adiwijaya Zaenal Alim , Suprianto Edy , Rusdi Dedi
Published: March 2023

The need for organizational governance is currently a major issue in Islamic banks. This is important to increase the profitability of Islamic banks and investor confidence. The research aims to examine the effect of Islamic Corporate Governance and the Maqashid Sharia Index on Firm Value with Islamic social responsibility as a Moderating Variable. The population of this research used all Islamic commercial banks registered with Bank Indonesia (BI) and the Financial Services Authority (OJK). The study is explanatory research by selecting samples with the criteria: First, Islamic banks have presented their financial statements from the 2018-2020 period and could be accessed on the official websites of each Islamic bank or other official websites. Second, Islamic commercial banks have published the GCG Statement which can be accessed on the official website of Islamic banks. Based on the analysis results, it can be concluded that Islamic Corporate Governance and the Maqashid Sharia Index have a positive and insignificant effect on firm value. However, these results proved that ISR was able to moderate the relationship between Islamic Corporate Governance and the Maqashid Sharia Index with firm value.
Quality of Sleep and Associating Factors among the Elderly with Urinary Incontinence
Authors: Kaewpunya Triradchayakorn , Howteerakul Nopporn , Siri Sukhontha , Suwannapong Nawarat , Sirisreetreerux Pokket
Published: March 2023

Objective: This study aimed to assess the prevalence of poor quality of sleep, and its associating factors among Thai elderly with urinary incontinence (UI), in Chiang Rai province. Material and Methods: Study samples from 419 individuals with UI, aged ≥60 years and living in Chiang Rai province were taken. Multi-stage random sampling was used to recruit study participants. Thai versions of the International Consultation on Incontinence Questionnaire-Short Form (TICIQ-UI SF) and the Pittsburg Sleep Quality Index (TPSQI) were used as data collection instruments. Results: Overall, 84.2% of participants had poor quality of sleep (TPSQI >5); with the mean TPSQI score being 8.4±3.16. Approximately 21.5%, 69.2%, and 9.3% had severe, moderate, and mild UI, respectively. Multiple logistic regression analysis revealed that being female (OR=2.77; 95% confidence interval (CI), 1.47-5.24); having a moderate severity of UI (OR=3.63; 95% CI, 1.10-11.96); being a current smoker (OR=6.84; 95% CI, 2.09-22.33); monthly income of <5,000 Baht (<167 USD) (OR=4.27; 95% CI, 1.33-13.73); being a current alcohol consumer (OR=3.04; 95% CI, 1.47-6.28) and being depressed (OR=3.91; 95% CI, 1.44-10.56) were significantly associated with poor quality of sleep. Conclusion: The prevalence of poor quality of sleep among the elderly with UI was rather high. The combined effects of several risk factors caused the elderly with moderate UI to have a poor quality of sleep. Healthcare personnel should regularly conduct screening for quality of sleep, UI, and depression and provide sleep health education to the elderly with UI, especially the elderly with depression, smokers, and alcohol consumers.
Efficacité à long terme des injections péridurales de corticostéroïdes pour un nouvel épisode de lombalgie chez les personnes âgées
Authors: Curatolo M. , Rundell S.D. , Gold L.S. , Suri P. , Friedly J.L. , Nedeljkovic S.S. , Deyo R.A. , Turner J.A. , Bresnahan B.W. , Avins A.L. , Kessler L. , Heagerty P.J. , Jarvik J.G. , Dualé C.
Published: March 2023

Contexte : Il existe peu de recherches sur l’efficacité à long terme des injections péridurales de corticostéroïdes (IPC) chez les personnes âgées, malgré la prévalence élevée des douleurs au dos et au membre inférieur dans ce groupe d’âge. Nous avons testé les hypothèses selon lesquelles les adultes plus âgés recevant une IPC, comparés aux patients n’en recevant pas : 1) présentent avant l’IPC une douleur et une impotence fonctionnelle plus graves et une qualité de vie moindre (« critères cliniques ») ; 2) présentent une amélioration des critères cliniques après l’IPC et 3) sont améliorés grâce à un effet spécifique de l’IPC.

Méthodes : Nous avons étudié prospectivement des patients de plus de 65 ans consultant en soins primaires dans trois systèmes de santé étatsuniens (registre BOLD), pour nouvel épisode de lombalgie. Les critères de jugement étaient l’intensité de la douleur du/des membre(s) inférieur(s) et lombaire, l’impotence fonctionnelle et la qualité de vie, évalués au départ et lors des suivis à 3, 6, 12 et 24 mois. Nous avons classé les participants comme suit : groupe 1, IPC dans les six mois suivant la visite de référence (n = 295) ; groupe 2, pas d’IPC dans les six mois (n = 4 809) ; groupe 3, pas d’IPC dans les six mois, appariés sur score de propension au groupe 1 (n = 483). Nous avons analysé les données au moyen d’une régression linéaire avec équations d’estimation généralisées.

Résultats : L’intensité de la douleur, l’impotence fonctionnelle et la qualité de vie au départ étaient significativement plus défavorables chez les patients IPC (groupe 1) que chez ceux du groupe 2. L’amélioration entre l’initiation et le 24e mois de tous les critères était statistiquement significative dans le groupe 1. Cependant, aucune différence statistiquement significative n’a été observée entre les trajectoires des critères des groupes 1 et 3, appariés sur score de propension.

Conclusions : Les personnes âgées traitées par IPC présentent une amélioration à long terme. Cependant, il est peu probable que cette amélioration soit le résultat d’un effet spécifique de l’IPC.

Importance : Dans ce grand suivi prospectif de deux ans chez des sujets âgés présentant un nouvel épisode de lombalgie, la douleur lombaire et la douleur du/des membre(s) inférieur(s), l’impotence fonctionnelle et la qualité de vie ont évolué favorablement après IPC ; toutefois, l’appariement sur score de propension a montré que cette amélioration n’était probablement pas due à un effet spécifique des injections, ce qui indique que les corticostéroïdes en péridural sont peu susceptibles de procurer des bénéfices à long terme aux sujets âgés présentant un nouvel épisode de douleur lombaire et de douleur du/des membre(s) inférieur(s).
Технологія виявлення поліморфних комп’ютерних вірусів
Authors:   State University of Telecommunications, Agachi O. O.
Published: March 2023

Traditional viruses were computer programs with a static structure that had very limited functionality. After the first detection, their structure is used by the antivirus program (AVP) as a tool to detect similar viruses with similar patterns. However, modern viruses can configure themselves and even change the structure of their functionality, which makes it difficult for antivirus software to detect them. A polymorphic virus is a complex computer virus that affects data types and functions, making it difficult to inspect its internal structure. The article reviews the general methods used by these viruses to demonstrate polymorphism; modern level of detection of polymorphic viruses; antivirus software to detect such viruses. The results of this study can be a source of knowledge for researchers and antivirus software companies.
The technology of ensuring cyber security of the cloud environment based on the Cisco Cloudlock solution
Authors:   State University of Telecommunications, Opanasenko M. I.
Published: March 2023

The article examines Denial of Service (DDoS) attacks that occur at the network layer of IoT systems and their impact on various aspects of network operation. DDoS attack scenarios using network bandwidth and using system resources are briefly discussed. Botnet detection methods in the IoT network are analyzed.