bluuebunny/crossref_metadata_2025 huggingface dataset:
Enzyme Kinetics of Recombinant Dihydroorotase from Methanococcus jannaschii
Authors: Ayotte Seth A. , Vitali Jacqueline
Published: August 2022

Dihydroorotase (DHOase) catalyzes the reversible cyclization of N-carbamoyl-L aspartate (CA) to L-dihydroorotate (DHO) in the third step of de novo pyrimidine biosynthesis. The reaction is pH dependent; at low pH the biosynthetic reaction is favored (CA to DHO) and at high pH the degradative reaction is favored (DHO to CA). Even though DHOases share a common catalytic mechanism, they form a very diverse family of proteins. Methanococcus jannaschii is a hyperthermophilic and barophilic archaeon and its DHOase (Mj DHOase) is the first archaeal one that is being studied. A previously conducted physicochemical characterization of Mj DHOase gave information into its similarities and differences from the other known DHOases. In that study, enzyme kinetics were only analyzed in the degradative direction. The purpose of the current work is to further characterize Mj DHOase by studying the kinetics in the biosynthetic direction and the dependence of the reaction on pH in both directions. The properties obtained are compared with other known DHOases. The specific activity of Mj DHOase in the biosynthetic direction is approximately half the specific activity in the degradative direction, similar to human DHOase. Mj DHOase exhibits the characteristic pH dependence of the reaction.
OTIMIZAÇÃO DA EXTRAÇÃO DE PRÓPOLIS VERDE PELA ATIVIDADE ANTIFÚNGICA E INCORPORAÇÃO EM BIOFILME DE QUITOSANA
Authors: Shigihara Tabata Hana , Figueiredo Pires Elizabeth , de Assunção Justo Diego , Mirante da Silva Juliana Aparecida , Fiori Zara Ricardo , Antunes Martin Clayton , Cottica Solange Maria , Shioji Tiuman Tatiana
Published: August 2022

The Brazilian propolis market has expanded greatly, leading the processing sector to pursue the best way to produce extracts with biological activities. The purpose of this research was to optimize the green propolis extraction by the antifungal activity and perform incorporation into a chitosan biofilm. The extracts were prepared using ethanol, acetone, ethyl acetate and isopropanol according to the three designs. The minimum inhibitory concentration (MIC) and the minimum fungicidal concentration (MFC) were determined against Candida albicans, Candida tropicalis e Candida glabrata. From the MIC, the response surface analysis was carry out to find the optimal conditions for the extraction for each design. The optimized extracts were incorporate into chitosan biofilm that were subsequently evaluate for thickness, water vapor permeation, water solubility and anti-Candida activity. It was establish that all extracts tested showed antifungal activity against the three Candida species. The extract obtained with acetone/ethanol stood out because it presented the lowest values of MIC and MFC (0.76 – 2.50 mg/mL). It was observe that the optimal extraction points of each design were the blend of acetone/isopropanol, acetone/ethanol and ethyl acetate/isopropanol yet the biofilms incorporated with these extracts showed few differences in thickness, vapor permeability and water solubility in relation to the control design. The biofilm obtained by acetone/isopropanol displayed the higher activity anti-Candida. This results show the importance of optimizing propolis processes for the application and product development.
Assessing Preservice Teachers’ Perceptions and Practices to Differentiate Instruction for Culturally and Linguistically Diverse Students in Secondary Classrooms
Authors: Zaier Amani , Maina Faith
Published: August 2022

This study examined self-reports and instructional videos provided by 25 preservice teachers to demonstrate differentiated instruction in meeting the needs of culturally and linguistically diverse students (CLDS) in the United States. Self-reported journals were thematically analyzed and compared with corresponding instructional videos. The results revealed a mismatch between perceptions and practices of differentiation. Clearly, additional efforts must be taken to prepare preservice teachers to differentiate their instruction for CLDS in the areas of content, process, product, and environment. Teacher preparation programs must invest time and resources to adequately prepare preservice teachers for the challenge of differentiating instruction for CLDS.
Preparing Linguistically and Culturally Conscious Pre-service Teachers with a Community-based Service-learning Project
Authors: Arabaci Atlamaz Tuba
Published: August 2022

Teacher preparation for culturally and linguistically diverse communities is crucial as classrooms become increasingly diverse. This study reports on the interaction between 20 pre-service teachers (PSTs) and adult emergent bilinguals during a community-based service-learning (CBSL) project. The project was part of a course offered at a state university in the northeastern USA. The qualitative data demonstrated that the PSTs gained sociolinguistic consciousness, learned about language learners’ prior experiences and linguistic proficiencies, and identified the linguistic demands of the interaction. The study also revealed that CBSL projects can possibly be an effective means of teacher preparation for emergent bilinguals worldwide.
The upcoming 2022 Missile Defense Review and the Biden administration missile defense policy
Authors: Krivolapov Oleg O.
Published: August 2022

The U.S. Missile Defense Review (MDR) draws attention as a central document in this area. The two reviews published so far (2010 and 2019) within a year of the Nuclear Posture Review were an important addition to the National Defense Strategy. The latter is devoted to clarifying Washington's political-military course, and the Nuclear Posture Review, the MDR, and the Space Posture Review deal with the most important elements of the military policy of the United States. Taking into account the positions expressed by the Biden administration officials, conclusions are drawn about the content of the 2022 MDR. In addition, the prospects for the implementation of certain areas of the U.S. missile defense policy are assessed, taking into account the experience of 2002-2021. If the current document is made the same way as previous ones, then it covers five main topics – missile threats, homeland missile defense, regional missile defense, programs’ organization, and cooperation with allies. The Biden administration’s two budget requests for missile defense (FY2022 and FY2023) suggest a course of action. In general, the new approach to the development of missile defense being applied can provide tangible results in the face of a possible reduction in funding. The role of allies in regional missile defense architectures may increase as a result of the interpretation of experience of the use of missiles and air and missile defense systems.
The Ambivalent Role of the Ukrainian Factor in US Domestic Policy
Authors: Travkina Natalya
Published: August 2022

The financial and economic turmoil of the XXI century has led to the fact that in the United States, domestic policy has gradually become dominant over foreign policy. In this regard, it would not be an exaggeration to say that foreign policy in a number of its key aspects has become a logical and integral continuation of the domestic political course of various American administrations, including the administration of J. Biden. In the conditions of the growing socio-economic crisis, which took the form of the "Biden recession", the democratic administration, which proved unable to cope with the growing wave of internal problems, firmly took the course of using the Ukrainian crisis to divert the attention of the broad strata of American society from the increasingly escalating domestic political problems, hoping at the same time, if not to maintain control over the US Congress, then at least minimize their losses in the upcoming midterm elections in November 2022. At the same time, the use of the "Ukrainian card" potentially gives the administration of J. Biden at the end of this year to use instruments of direct control over the political system of the United States, which are at the disposal of the head of the executive branch of government and the Supreme commander of the United States.
Aplicação da Resource-Based View no Setor Público: Oportunidades de Pesquisa com Base em um Fragmento da Literatura no Contexto Internacional
Authors: Soares Cristiano Sausen , Da Rosa Fabrícia Silva
Published: August 2022

Tomando por base a indicação de Matthews e Shulman (2005) para uso da Resource-based View (RBV) nas organizações públicas, desenvolveu-se o presente estudo com o objetivo de analisar a aplicação da RBV no contexto das entidades do setor público, com base em um fragmento da literatura internacional, identificando oportunidades de pesquisa. Para tanto, seguindo a pesquisa qualitativa, descritiva e bibliográfica, foi constituído um Portfólio Bibliográfico (PB) a partir da busca em sete bases de dados internacionais por estudos anteriores que utilizaram essa teoria no contexto do setor público. Os resultados da busca identificaram 15 artigos para análise sistêmica a partir dos autores, ano de publicação, periódicos, objetivos e metodologia utilizada, além das oportunidades de pesquisa evidenciadas. Os resultados do estudo ressaltam como oportunidades de pesquisa a falta de atenção à interação entre os recursos tangíveis e intangíveis e o desempenho das organizações governamentais. Espera-se que os resultados aqui encontrados possam contribuir aos pesquisadores interessados no tema e aos gestores públicos na identificação de recursos estratégicos e geradores de vantagens competitivas sustentáveis.
Filosofía, Conceptos Psicológicos Y Psiquiatría
Authors: González Cáceres Dolores Susana , Viesca y Treviño Carlos Alfonso
Published: August 2022

N/A
evolución de los conceptos de la física del siglo XIX
Authors: Samaniego Banuelos Fernanda , Hernández Cornejo Nalliely
Published: August 2022

En este artículo se utiliza la tipología de Dudley Shapere de los problemas científicos para clasificar y analizar las principales preguntas de la física en la transición del siglo xix al xx. Se exploran las concepciones de espacio, campo, entropía, éter, energía y materia en las décadas previas a la llegada de la relatividad y la mecánica cuántica. Así, se recorren las ideas de Poincaré, Faraday, Boltzmann, Maxwell, Helmholtz y Lorentz, entre otros, para comprender las condiciones epistemológicas del cambio de siglo y evaluar, a la vez, las virtudes y defectos de la tipología shapereana.
Discusiones sobre el concepto de población humana en la investigación epidemiológica del dengue en Argentina
Authors: Ocampo Carolina , Delvitto Ailin , Di Pasquo Federico
Published: August 2022

En la actualidad el control del dengue sigue fracasando, por lo tanto, parece necesario estimular nuevos enfoques sobre el problema. Creemos que un análisis desde la epistemología puede contribuir con esto. Así, basándonos en una revisión realizada por Krieger de la categoría de población en epidemiología y en el abordaje epistemológico de Samaja, nuestro objetivo es analizar y problematizar el modo en qué se considera a la población humana en ciertas publicaciones científicas sobre la epidemiología del dengue en Argentina. Nuestro análisis indica que estas publicaciones consideran a la población en sentido estadístico y que esta mirada puede generar consecuencias negativas.
relevancia de la invariancia frente a inversión temporal para la flecha del tiempo
Authors: Lombardi Olimpia , Vanni Leonardo
Published: August 2022

En este artículo se argumenta que la existencia de leyes invariantes frente a inversión temporal no es condición indispensable para la existencia de la flecha del tiempo. Esta última puede definirse como una propiedad global y geométrica del espacio-tiempo que no se basa en consideraciones entrópicas ni requiere de la existencia de leyes no invariantes frente a la inversión temporal. A su vez, si el espacio-tiempo cumple ciertas condiciones, la flecha global se traslada a los contextos locales como un flujo tetradimensional de energía que apunta en la misma dirección temporal en todos los puntos espacio-temporales.
Fernando de Roa y la defensa del estamento ciudadano
Authors: Sánchez Hidalgo Adolfo Jorge
Published: August 2022

Este artículo de investigación tiene como objetivo iluminar la figura y obra de Fernando de Roa, profesor de la Universidad de Salamanca en el siglo XV quien detentó la Cátedra de Filosofía Moral y la aclamada Cátedra Prima de Teología, a quien debemos una de las logradas formulaciones de los conceptos de monarquía limitada y principado electivo. Fue Roa uno de los inspiradores del movimiento de las Comunidades de Castilla, abogado de la causa ciudadana frente a las clases populares y a la nobleza de sangre, un claro defensor del sometimiento del rey a la comunidad y su Derecho.
El terror de la tortura. Esbozo fenomenológico de sus excesos intuitivos
Authors: Jaramillo Fernández Hernán Alonso
Published: August 2022

Este artículo aporta una interpretación fenomenológica sobre cómo se constituye el terror de la tortura en la víctima. Para tal efecto, propongo un contraste entre la interpretación sobre la tortura como un poder micro-político (perspectiva trascendente) y mi propuesta de una mirada fenomenológica (perspectiva inmanente) sobre su constitución a partir de la teoría de los fenómenos saturados de Jean-Luc Marion. El objetivo es determinar que el terror en la tortura depende de excesos intuitivos de la carne (chair/Leib) que no pueden ser contenidos en la subjetividad de la víctima.
Narrativa, performatividad y acontecimiento en el sistema global. Jean Françoise Lyotard y Walter Benjamin en diálogo
Authors: Vargas-Monroy Liliana
Published: August 2022

En El tiempo hoy texto de 1988 de Jean François Lyotard, se discute una visión del mundo contemporáneo como una gran mónada. La apuesta permite problematizar la performatividad del sistema financiero y su relación con la forma actual del capitalismo. Este artículo asume esta lectura y desde diversos textos de Jean Françoise Lyotard y de Walter Benjamin, se pregunta por las posibilidades de una resistencia/interrupción frente a la performatividad del sistema global, proponiendo en algunos de los acontecimientos políticos de los últimos años la emergencia de un tiempo vivo con potencia de acontecimiento.
Para-cardiac Inflammatory Mass Compressing the Heart
Authors: Mirdamadi Ahmad , Sadeghi Amir MM , Sadeghi Mohsen MM , Rabani Majid , Hassanzadeh Shakiba
Published: August 2022

Infection with the SARS-CoV-2 virus causes coronavirus disease 2019 (COVID-19). COVID-19 usually affects the lungs but may also involve other organs such as the heart. We report a case of a para-cardiac mass in a previously healthy 45-year-old man who developed persistent dyspnea following SARS-CoV-2 infection. The patient underwent cardiac surgery since the mass was attached to the pericardium and was causing constrictive pericarditis. The pathology report indicated an inflammatory pattern for the mass. Based on our knowledge there has been no previous report of developing a para-cardiac inflammatory mass after SARS-CoV-2 infection. In conclusion, we would like to increase awareness regarding the possibility of developing a para-cardiac inflammatory mass following COVID-19.

Keywords: SARS-CoV-2; Pericarditis; Constrictive pericarditis; COVID-19; Cardiac tumor; Mediastinal tumor.
Convergence Analysis of Havelock-Type Eigenfunction Expansions for Hydroelastic Problems in Water having Infinite Depth
Authors: Koley Santanu
Published: August 2022

The present paper demonstrates the point-wise convergence of the Havelock-type eigenfunction expansion to the velocity potentials associated with the water waves interaction with flexible plate and membranes in water having infinite depth. To consider the higher-order boundary condition at the mean free surface of the water domain, flexible plate and membranes are assumed to float in the mean water level. In the convergence analysis procedure,  firstly, the havelock-type eigenfunction expansion for the unknown velocity potentials associated with the physical problems are obtained. Hereafter, a suitable  Green's function is developed for the associated physical problem. Using the developed Green's function and the associated properties, the vertical components of the Havelock-type eigenfunction expansion is expressed in terms of the Dirac delta function. Finally, using appropriate properties of the Dirac delta function, the point-wise convergence of the Havelock-type eigenfunction expansion is demonstrated.
Landau-Kolmogorov and Gagliardo-Nirenberg Inequalities for Differential Operators in Lorentz Spaces
Authors: Huy Vu Nhat , Nguyen Ngoc Huy
Published: August 2022

In this paper, we establish some Landau-Kolmogorov inequalities and Gagliardo-Nirenberg inequalities for di?erential operators generated by polynomials. We illustrate the relation between ||P(D)f||N? and ||f||N?, ||Dm(P(D)f)||N? as follows||P(D)f||N? K1(E)||f||N? + K2(E)||Dm(P(D)f)||N?for all E > 0, where ||.||N? is the norm in Lorentz spaces N?(R). The corresponding inequalities in Lp(Rn) is also obtained.
Congruences for Overpartition Pairs with Restricted Odd Differences
Authors: Naika M. S. Mahadeva , Harishkumar T.
Published: August 2022

Let b-(k) (n) denote the number of overpartition pairs of n where (i) consecutive parts di?er by a multiple of k + 1 unless the larger of the two is overlined, and (ii) the smallest part is overlined unless it is divisible by k+1. We prove many in?nite families of congruences modulo powers of 2 and 3 for b-(2) (n) and congruences modulo 4 and 5 for b-(4) (n). For example, for all n ? 0 and ?,? ? 0, b-(4)(4·34? ·52?(5n + i) + 34? ·52?)? 0 (mod 5),where i = 3,4.
Approximation of Fourier Series of Functions in Besov Space by Borel Means
Authors: Padhy B. P. , Mishra A. , Nanda S.
Published: August 2022

In the present article, a result on degree of approximation of Fourier series of functions in the Besov space by Borel mean is established.
Infinite Order of Growth of Solutions of Second Order Linear Differential Equations
Authors: Mehra Naveen , Pande V. P.
Published: August 2022

We consider the di?erential equation f'' +A(z)f' +B(z)f = 0, where A(z) and B(z) are entire complex functions. We improve various restrictions on coe?cients A(z) and B(z) and prove that all non-trivial solutions are of in?nite order.
Mehler-Fock, Legendre Integral Transforms with Applications
Authors: Aghili A.
Published: August 2022

In this paper we study some properties of the Mehler-Fock and Legendre transforms. Certain integrals involving associated Legendre function, Gamma function and modi?ed Bessel’s function are evaluated. Constructive examples are also provided.
Biharmonic Curves in Three-Dimensional Generalized Symmetric Spaces
Authors: Belarbi Mansour , Elhendi Hichem , Belarbi Lakehal
Published: August 2022

In this paper, we study biharmonic curves in three-dimensio -nal generalized symmetric spaces, equipped with a left-invariant pseudo- Riemannian metric. We characterize non-geodesic biharmonic curves in three-dimensional generalized symmetric spaces and prove that there ex- ists no non-geodesic biharmonic spacelike helix in three-dimensional gen- eralized symmetric spaces. We also show that a linear map from a Eu- clidean space in three-dimensional generalized symmetric spaces is bihar- monic if and only if it is a harmonic map, and give a complete classification of such maps.
Oscillation Result for Nonlinear Fourth-Order Homogeneous Neutral Delay Dynamic Equations
Authors: Sikender N. , Rakmaiah S.
Published: August 2022

We introduce an oscillatory result for fourth order homogeneous neutral delay dynamic equations on time scales, which deals with a unification and extension of the differential and difference equations depending upon the time scale defines on a continuous set and a discrete set respectively.
Cyclic and Constacyclic Codes for F2[u,v]/<u2,v3 – v,uv,vu>
Authors: Rojita Chanu TH. , Timothy Kom ST. , Ratnabala Devi O.
Published: August 2022

In this paper, we study cyclic and β-constacyclic codes over the ?nite commutative ring R = F2[u,v]/ with ? = (1+u),(1+u+v+v2) and (1+v+v2). We establish a Gray map from R to F42 and prove that the Gray image of a cyclic code is a quasi-cyclic code of index 4. It is also shown that the Gray image of β-constacyclic code overRis either β-equivalent, β-equivalent or β-equivalent to a quasi-cyclic code of length 4n and index 4 over F2 when ? = (1 + u),(1 + u + v + v2) and (1 + v + v2), respectively.
Caracterización de una población pediátrica de escasos recursos que habita por encima de 2500 m. s. n. m., positiva para SARS-COV-2
Authors: López Juan José , Lancheros Fabio , Daza Angélica María , Lancheros Diocel
Published: August 2022

La infección por el nuevo SARS-COV-2 ha impactado de diversas maneras a toda la sociedad, incluidos los niños. Se describe el comportamiento de esta enfermedad en una población pediátrica de escasos recursos localizada por encima de 2500 m. s. n. m. Este es un trabajo retrospectivo transversal entre marzo y octubre de 2020 en Bogotá involucró niños entre 1 mes y 14 años con rt-pcr positiva para SARS-COV-2. Se estudiaron antecedentes, características sociodemográficas, clínicas, de laborato- rio, radiológicas y evolutivas, agrupando los pacientes según la gravedad y analizando su significancia (p < 0.05). Como resultado, se obtuvieron 416 casos, de los cuales 43.3 % eran asintomáticos, 46.6 % sintomáticos leves, 8.9 % graves y 1.2 % críticos. De los consultantes a urgencias, los menores de 1 año fueron los más frecuentes (56.79 %) y los que más se hospitalizaron (35.8 %). El tiempo entre el inicio de los síntomas y la consulta fue en promedio de 2 días, El diagnóstico más frecuente en los pacientes no hospitalizados fue rinofaringitis (58.97 %), y en los que se hospitalizaron fue bronquiolitis (50 %). La mediana del tiempo de hospitalización de todo el grupo fue de 4 días la cual ser prolongó a 7 días para los que requirieron UcI. Con la hospitalización se asocia, entre otras causas, los índices nutricionales < 2 DE, taquipnea, dificultad respiratoria, hipoxemia, linfopenia (en mayores de 2 años) (p < 0.05), no influyendo el hacinamiento ni el nivel socioeconómico. Después del estudio, se pudo concluir que la enfermedad es, generalmente, mucho más leve en niños que en adultos, diferenciándose de estos tanto en los factores predisponentes, los paraclínicos y en la evolución. Sin embargo, algunas variables demográficas, clínicas y de laboratorio podrían asociarse con una mayor gravedad en este grupo poblacional.
Associations between rs2241766 and rs3774261 polymorphisms in ADIPOQ gene and atopic dermatitis
Authors: Al-Shaheri Fawaz , Khabour Omar F.
Published: August 2022

Atopic dermatitis (AD) is a common skin condition that affects both children and adults. Adipokines have been shown to play a role in the pathogenesis of AD. In the current study, the association between adiponectin gene (ADIPOQ) polymorphisms and AD was investigated. In addition, changes in serum adiponectin levels in AD patients were examined. Restriction fragment length polymorphism-PCR technique was used to genotype ADIPOQ SNPs. The ELISA assay was used to measure serum Adiponectin levels. A total of 324 participants (162 AD and 162 healthy controls) were included in the study. The frequency of the GG genotype of rs3774261 was higher in the AD group (44.5%) than in the control group (32.7%, P<0.05). Regarding the rs2241766 SNP, the frequency of the GG genotype was higher in the AD group (10.5%) than in the control group (3.1%), while the frequency of the TT genotype was lower (P<0.001) in the AD group (35.8%) than the control group (57.4%). Moreover, the GG haplotype of rs3774261 and rs2241766 significantly increased the risk of AD by about 2-fold (P<0.05). Finally, serum adiponectin levels were lower in the AD group than in the control group (P<0.05). These results indicate an association of the rs2241766 and rs3774261 SNPs with the risk of developing AD among the population examined.
The Effect of Innovation in Business Model, Services and Technology on Firm Sustainability: An Examination using Triple Bottom Line Theory
Authors: Faisal Fatin Faseha , Muhammad Kamaruzzaman , Ghani Erlane K
Published: August 2022

Recent studies have suggested one way to strengthen firm sustainability is through innovation. Innovation can be very flexible as it can be applied to many different aspects, such as the innovations in products or services, technology, marketing, or the business model itself. This study examines the effect of innovation on firm sustainability. Specifically, this study examines the effect of innovation in the aspects of business model, services, and technology on the sustainability of a company in the retail and merchandise industry. Using a questionnaire survey distributed to the employees of the company as the research instrument, this study shows that innovations in services and technology do impact firm sustainability. However, the findings also show that innovation in the business model does not impact firm sustainability. The findings of this study contribute to the literature and provide further evidence of the importance of innovation in increasing firm sustainability. In addition, the findings may also provide companies with a broader perspective on how innovation can affect their sustainability.
In silico identification of ivermectin as an influenza A virus nuclear export protein inhibitor
Authors: Darapaneni Vivek , Jaldani Anusha
Published: August 2022

Influenza A virus (IAV) is an etiological agent infecting animals and humans that is responsible for seasonal epidemics and devastating pandemics. IAV nuclear export protein (NEP) is a multifaceted protein that plays a pivotal role in the virus life cycle. One of the most important functions of IAV NEP is to transport newly synthesized viral ribonucleoproteins from the nucleus to the cytoplasm. This function is achieved by the interaction between NEP and matrix protein 1 (M1) facilitated by Trp78 surrounded by negatively charged Glu residues in the M1 binding domain of NEP. In the present study, we targeted the IAV NEP with ivermectin. Utilizing in silico molecular docking, we tested ivermectin for its ability to bind NEP. We found that ivermectin strongly binds to NEP with an affinity of –7.3 kcal/mol. The ivermectin binding site identified in this study is located in the NEP-M1 protein interaction region. It is anticipated that blocking NEP-M1 protein interaction can have a considerably deleterious effect on IAV assembly and propagation. This study highlights the possibility of exploring ivermectin as a potential IAV NEP protein blocker, which could be an important therapeutic strategy in the treatment of influenza.
Verjetnost
Authors: Benkovič Dominik
Published: August 2022

Pričujoče delo je zastavljeno kot skripta pri predmetu Verjetnost na prvi stopnji študijskega programa Matematika na Fakulteti za naravoslovje in matematiko in je nastalo na podlagi priprav na predavanja. Sestavljeno je iz dveh delov. Prvi del, ki obsega šest poglavij, pokriva vsebino klasičnega verjetnostnega računa: definicijo in osnovne lastnosti verjetnosti, naključne spremenljivke in naključne vektorje ter številske karakteristike in limitne izreke. Drugi del, ki obsega dve poglavji, obravnava naključne procese. Tukaj so najprej predstavljeni osnovni naključni procesi, v nadaljevanju pa so bolj natančno obravnavane homogene markovske verige.
Analysis and Correction of Individual Property Values of Motor Fuels and Other Liquids
Authors: Grekhov L.V. , Markov V.A. , Arsenov N.A. , Zhao Jianhuey
Published: August 2022

The article substantiates the necessity of a specific form of the equation of state having simple and easy-to-use expressions that allow calculating the elastic properties of motor fuels quickly and with sufficient accuracy. An easy-to-use method is proposed for calculating the constants for the chosen form of the equation of state and presenting them in the form of expressions reflecting the temperature dependence of the constants. Based on the literature sources containing experimental data on the selected parameter - the speed of sound, a method is proposed for increasing the accuracy of the calculation by introducing universal coefficients reflecting the nonlinear effects of temperature and pressure for each considered liquid. The possibility of applying the developed methods of searching for constants of the equation of state, as well as increasing the accuracy of calculated data for a number of fuels, calibration and other technical liquids is demonstrated.
The Percentage of Male and Female Argulus Infesting Cyprinidae Fish in Magelang Regency, Central Java, Indonesia
Authors: . Kismiyati , Andika Alif Rizky , . Kusnoto
Published: August 2022

Background: One cause of fish disease is the Argulus parasite. Both male and female Argulus were found to infect fish. This study aims to determine the percentage difference of male and female Argulus that infect Cyprinidae in Magelang Regency. Methods: The present study used a survey method. The independent variables in this study are carp (Cyprinus carpio), goldfish (Carassius auratus), comet goldfish (Carassius auratus), koi fish (C. carpio koi) and the sex of the Argulus parasite. The dependent variable of this study was the sex percentage of the Argulus parasite. The data analysis was done using analysis of variance (ANOVA) then followed by Duncan’s multiple range test to find out the differences between treatments. Result: The first ANOVA result showed no significant difference (p greater than 0.05), the second ANOVA showed significantly different results (p less than 0.05) and the third ANOVA reveals no significantly different percentage (p greater than 0.05). The highest infestation rate of male Argulus japonicus is found in koi fish (C. carpio koi) is 60% and the lowest is in comet goldfish, which is 38.46%. Whereas infestation of female A. japonicus in carp, goldfish, comet goldfish and koi fish also obtained a similar result.
​Construction of Selection Indices by using Different Economic Coefficients in Indian Bean [Lablab purpureus (L.) Sweet]
Authors: Garde Y.A. , Chaudhary A.P. , Bhimani P.C. , Modha K.G. , Shrivastava Alok , Varshney Nitin
Published: August 2022

Background: Most of the plant characters are governed by polygenes and greatly influenced by environmental conditions. The progress of breeding is conditioned by the magnitude, nature and interrelationship of genotypic and non-genotypic variation. In most of the crop improvement programs, the improvement of one trait may cause advancement or deterioration in associated traits serves to emphasize the need for simultaneous consideration of all traits which determine the economic value of a genotype. Methods: The present investigation was undertaken for Indian bean [Lablab purpureus (L.) Sweet] to construct efficient selection indices for selecting best progenies. The experiment was conducted with 55 progenies with checks GNIB-21 and GNIB-22 in randomized block design (RBD) with 3 replications. An attempt was made to build a selection index by taking 3 different type of economic weights viz. equal weight [W1], genotypic correlation coefficients [W2] and genotypic path coefficients (Direct effect) [W3]. Result: It has been seen that genetic gain of Indian bean of selected progenies observed higher with equal weight method as compared to weight assigned method with genotypic correlation coefficients and genotypic path coefficients (Direct effect). It has been concluded that the selection of progeny based on seed yield per plant, plant height, pod width and days to maturity provide higher genetic gain in Indian bean.
Okul Yöneticilerinin Etik Liderlik Davranışlarıyla Öğretmenlerin Örgütsel Güven Düzeyleri Arasındaki İlişkinin İncelenmesi
Authors: ÇAYAK Semih
Published: August 2022

In this study, the relationship between school principals’ ethical leadership behaviors and teachers’ organizational trust levels were examined. Sample of the study, which was designed in the correlational survey model, consists of 397 teachers working in two districts of Istanbul. Ethical Leadership Scale and Organizational Trust Scale were used throughout the study. Data obtained during the study were analyzed by arithmetic average, standard deviation, correlation analysis and regression analysis. According to the findings, teachers’ organizational trust, and their perceptions regarding ethical leadership behaviors of school principals were found to be at a high level. As a result of the correlation analysis, it was found that there was a moderately positive and statistically significant relationship between ethical leadership and organizational trust. On the other hand, it was determined that ethical leadership significantly predicted teachers’ organizational trust. The findings obtained were discussed in the light of the related literature and suggestions were presented.
Assessment of influence of LED curing units used on microhardness of resin-modified glass ionomer sealants
Authors: Marques Joyce Figueiredo de Lima , Ferraz Laura Nobre , Lopes Beatriz Kelly Barros , Vasconcelos Tamires Aparecida Borges , Teixeira Thiely Roberts , Lima Débora Alves Nunes Leite , Aguiar Flávio Henrique Baggio , Miranda Diogo de Azevedo
Published: August 2022

Aim: Resin modified glass ionomer (RMGI) is class of material that can be used as sealant for preventing and arresting the progression of caries in pits and fissures. As these are hybrid materials, their properties can be affected by factors related to the polymerization process. Therefore, this study aimed to evaluate the influence of different generations of LED curing units (Elipar DeepCure-L and VALO Grand) on Knoop microhardness values (KHN) of RMGI sealants (Clinpro XT and Vitremer). Methods: Forty cylindrical specimens (6mm ø x 1 mm high) were prepared according to the manufacturer’s instructions and divided into four groups (n=10) according to the type of RMGI and LED used. The KHN of the top surface of each sample was calculated 7 days after light-curing. Data were submitted to two-way ANOVA (α = 0.05). Results: Vitremer had higher KHN values than Clinpro XT after using both LEDs (p<0.0001), but especially when light-cured with the use of VALO Grand (p<0.0001). Whereas the KHN value of Clinpro was not influenced by the LED device (p>0.05). Conclusions: Top surface microhardness values of RGMI sealants were affected by both material composition and generations of LED curing units used. Third generation LED curing units seemed to be more efficient for the polymerization of RMGI-based sealants.
Black microplastic in plastic pollution: undetected and underestimated?
Authors: Huang Yuyue , Xu Elvis Genbo
Published: August 2022

Plastic pollution includes microplastics. The environmental ubiquity of microplastics (< 5 mm) is evident and the leak of microplastics into the environment is projected to increase globally. Microplastics in the environment possess high heterogeneity in polymer composition, particle size, shapes, and surface chemistry, which sometimes result in contradictory toxicological findings. However, much less attention is paid to the color of microplastics, particularly black plastics that are the least recycled and account for a significant proportion of total plastic waste and environmental microplastics. In the present perspective article, based on 50 field-based research articles on microplastics published from 2014 to 2022 and our own research experience, we raised specific environmental concerns about black microplastics and emphasized the challenges posed by black microplastics in multiple aspects. Future prospects were also discussed for better mitigating black microplastics in the context of plastic pollution.
PRAGMATIC POTENTIAL OF LINGUISTIC MEANS OF EXPRESSION IN SPEECHES ON INFORMATION TECHNOLOGY
Authors: Kozlitska Maryna , Tikan Yana
Published: August 2022

The article focuses on the investigation of such linguistic phenomenon as the category of expression and related linguistic concepts and their functioning in the texts of information technology field. The analysis of expression means is carried out, the characteristic features of expressives are singled out, the classification of means of expression at all language levels is presented, the analysis of frequency of usage of expression means in speeches in the branch of information technologies branch is given. The study of linguistic means of expression and their functioning in speeches on information technology, in particular pragmatic potential is relevant in light of the extremely rapid development of information technology and the impact on society, the interest of scientists in the human factor in language and insufficient study of expression in speech. The article also considers the ability of the text to create a communicative effect, to evoke in the receptor a pragmatic attitude to the message, otherwise to exert a pragmatic influence on the recipient of information through various means of expression. The expressive function promotes the expression of feelings and emotions and enables the author or speaker to make the text accessible for perception. Combining different language tools and techniques of expression intensifies what is said and helps to emphasize the most important information.
Keywords: expression; means of expression; expressives; pragmatics; speeches in the field of information technology.
O PARADIGMA DA MODERNIZAÇÃO AGRÍCOLA COMO PEDAGOGÍA DA DESIGUALDADE NAS ÁREAS RURAIS DA AMÉRICA LATINA
Authors: Ferro Silvia Lilian
Published: August 2022

Este ensaio pretende contribuir para a compreensão da natureza construída históricamente, das assimetrias hierárquicas nas quais se apoiam  as  estruturas sócio-agrárias que permitiram modelos exportadores agrícolas da América do Sul, considerados bem sucedidos pela alta participação de commodities agrícolas em suas balanças comerciais na atualidade. A análise dos processos históricos pode explicar o surgimento e a sobrevivência nas zonas rurais das hierarquias étnicas, de gênero e geracionais na América do Sul. Nesta linha de pensamento torna-se relevante o advento da Revolução Verde, a partir da segunda metade do século XX, promovido pelos ideários do Desenvolvimentismo que basearam as suas expectativas de conquista do progresso indefinido através da inovação tecnológica e modernização das estruturas políticas, econômicas e sociais. Nas áreas rurais, essa ideologia foi chamada de modernização agrária. A modernização agrícola, base epistemológica para a divulgação e adopção do pacote tecnológico, teve origem no Norte Global. Para aceitação pelas comunidades rurais em países em desenvolvimento se usou uma pedagogia específica: o Extensionismo Rural. Os  Estados Nacionais assumiram um papel de liderança através da criação de organismos estatais especializados deslocando o foco da tradicional e preexistente Assistência Técnica para a Extensão Rural. A modernização agrícola cumpriu a expectativa de aumentar expressivamente a produtividade agrícola, mas também aprofundou e recriou hierarquias étnicas, de gênero, geracionais e territoriais que frustraram as expectativas das pessoas no momento em que assumiram que o crescimento exponencial da riqueza e da produtividade, através da inovação tecnológica, juntamente com a gestão racional baseada em princípios de otimização e eficiência poderiam erradicar as desigualdades enraizadas nas estruturas sociais, especialmente rurais.
Evaluation on the Use of Online Comics among Students: Development Studies at Universitas Terbuka
Authors: Radeswandri  , Vebrianto Rian , Thahir Musa
Published: August 2022

Promotion is one way to spread information, so as to persuade/influence the audience to be willing to be loyal, accept, or buy towards a company or product. One form of promotional media that is effective in increasing the prospect of an object is online comics. Online comics are digital media that are dynamic and in accordance with technological developments. Based on this, this study aimed to evaluate the use of online comics among Universitas Terbuka students as a means of education and promotion. This research is development research using the ADDIE model with limitation of only on response test or evaluation of the use of online comics. The research was conducted by involving 60 students from various study programs. The data collection was done using an online questionnaire consisting of seven constructs with 34 questions related to evaluating the use of online comics. The data collected was then analyzed using SPSS version 23.00 for Windows. The results showed that the students' evaluation of the use of online comics in the seven constructs had an average of 3.11 in the "good" category. Therefore, students as agents of change in education are expected to be able to think openly about changes and alternatives offered by technology to improve the quality of learning.
Application of Electronic Learning by Utilizing Virtual Reality (VR) and Augmented Reality (AR) Methods in Natural Sciences Subjects (IPA) in Elementary School Students Grade 3
Authors: Anggara Risan Putra , Musa Purnawarman , Sri Lestari  , Widodo Suryarini
Published: August 2022

Corona Virus Disease 2019 (Covid-19) has stopped all aspects of human life, including the world of education. The Ministry of Education of the Republic of Indonesia has stopped face-to-face teaching and learning activities in schools, replacing them with online methods. Work from Home (WFH) is an adaptation of activities as applied online methods to anticipate learning activities during the Covid-19 Pandemic. Learning based on digital transformation technology utilizes network technology entirely online. The application of e-learning technology in the teaching and learning process is a choice for various educational institutions. The use of technology can maximize students 'learning time efficiency and increase students' concentration. Learning with the Virtual Reality (VR) method directs students to discoveries, motivates, encourages, and provides more curiosity for students in learning. Besides VR, Augmented Reality (AR) is a learning method for students to interact with virtual objects and real objects. The author proposes e-learning based learning in Natural Sciences (IPA) subjects in grade 3 in Elementary Schools. The research proposal develops lessons using a virtual approach from real events and provides phenomena of natural occurrences. Science lessons in Elementary Schools increase the curiosity of students scientifically. This method will help students develop the ability to ask questions and find answers to natural phenomena. The research stages carried out in application development are analysis, design, implementation, and application testing. The test results by adding e-learning to traditional learning methods impacted students' understanding of the material with an increased level of understanding by 24%.
The Effectiveness of Learning with the Team Based Project Method in the Decision Making Technique Course by Using the Product Oriented Module
Authors: Wijaya Kinanti , Siregar Syafiatun , Sutrisno  , Yuzni Siti Zulfa , Sari Ruri Aditya , Idris Iswandi , Ramadani
Published: August 2022

The purpose of this study is (a) to identify learning using the team-based project method implemented in practical courses using product-oriented modules in vocational education. (b) to know the level of effectiveness of learning with the team-based project method implemented in practical courses using a product-oriented module in Vocational Education. This study used research related to this study, which were all students who were taking the Decision-Making Technique course. The number of research samples was 60 people (2 classes) of the 2018 Business Administration study program as a field test, 9 people as a small group test and 3 people for an individual test. The results showed that from the material expert, 4 aspects were assessed in the material expert test, namely the material aspect, the quiz question aspect, the linguistic aspect and the implementation aspect. The material aspect has a higher percentage value than the other three aspects, namely 85.45%, then the questions and quiz aspects and the implementation aspect have 80%, while the linguistic aspect has 60%. With this percentage value, the overall assessment of the material experts assesses that this learning media was considered "Eligible" to be developed. Based on the results of the t-test calculations, data obtained that tcount> ttable or 5,868> 2,0172 or in other words H0 is rejected and Ha is accepted, it can be concluded that the learning outcomes using Learning Methods of Team Based Learning on practice course with Product-Oriented Module was higher than students who were taught without using Learning Method of Team Based Learning In practical courses with Product-Oriented Modules with the effectiveness of using Learning Methods of Team Based Learning In practical courses with Product-Oriented Modules of 88,5667% .
Development of Animation Video on YouTube Channels as an Alternative Learning Media during the Covid-19 Pandemic
Authors: Asrori  , Nunuk Suryani  , Nur Arifah Drajati
Published: August 2022

Distance learning is held as an effort to continue to present the teaching and learning process for students during the COVID-19 pandemic. Many students admitted that they were not happy with the implementation of distance learning. This study aims to describe the development of Animaker application-based learning videos on the YouTube channel as an alternative to distance learning media during the covid-19 pandemic. This study uses a Design-Based Research (DBR) model. This study shows an overview of the stages of developing a learning video which includes needs analysis, material preparation and product design according to the learning objectives to be achieved, product implementation, and evaluation. Questionnaire technique is used as a method of collecting data at the stages of needs analysis and evaluation. At the needs analysis stage, the researcher gave questionnaires to 114 students who took part in learning Islamic Religious Education by distance learning or online, while at the evaluation stage, validation was carried out by two experts and the video learning trial was conducted by six students. The material expert validation in the two learning videos developed received very good and proper predicates (92% and 87%) from material experts. Meanwhile, the validation of media experts received very good and proper predicates (94% and 94%). Then, the results of student assessments in small groups showed good scores with an average score of 90% with very good and decent predicates. This indicates that the learning video developed is suitable for use as an alternative learning media during the covid-19 pandemic.
Genetic Based EFL Classroom Management
Authors: Roslina
Published: August 2022

This article was inspired by Jamil Pooniran's concept of STIFIn genetic intelligence and language learning methodology, especially regarding classroom management. All of these inspirations became the author's reference for pursuing his mind in building a genetic-based EFL classroom management concept. This article was not based on empirical data. Still, it was built and constructed from the previous concept, namely the STIFIn concept of genetic intelligence, which was synthesized into a genetic-based class management concept for the EFL class. This study aimed to determine how to apply the concept of genetic-based classroom management to the EFL class. Based on the STIFIn concept of genetic intelligence, the authors formulated a genetic-based classroom management concept for EFL classes adapted for EFL students' five types of machine intelligence. In summary, the author concluded that the genetic-based classroom management concept for the EFL class could be applied to the three managerial class phases, namely involving stage and using calibration at the evaluation stage.
Editorial
Authors: Eryando Tris
Published: August 2022

Not available.