bluuebunny/crossref_metadata_2025 huggingface dataset:
Um Olhar Crítico Reflexivo da Política de Formação Inicial dos Professores do Ensino Básico Cabo-Verdiano / Reflective and Critical Look at the Policy of Training Teachers of Primary School of Cape Verde
Authors: Monteiro Emanuel
Published: December 2022

O propósito deste trabalho visa analisar a política de formação de professores de Ensino Básico de Cabo Verde, tendo o Instituto Pedagógico - IP como o principal órgão de ensino no cumprimento dessa política. O artigo começa abordando sobre os desafios da formação docente na contemporaneidade e a necessidade de um entendimento da formação no seu sentido mais largo e profundo e, portanto como basilar do processo educativo. Seguidamente, é caracterizada a formação dos professores do Ensino Básico em Cabo Verde, fazendo uma pequena retrospectiva dos desafios de formação dos seus professores no período anterior à sua independência até esta se efetivar, a análise da consonância das ações do IP com o Plano Estratégico de Educação para amenizar o problema da falta de professores formados atuando no Ensino Básico. Para atingir estes objetivos utilizou-se a análise de conteúdo. Conclui-se o artigo com o entendimento de que, além de ser aligeirada a formação dos professores do Ensino Básico Cabo-verdianohá um tipo de interesse que não está a favor da evolução da consciência humana e especificamente da emancipação do indivíduo.ABSTRACT: The purpose of this paper is to analyze the policy of training teachers of Basic Education in Cape Verde, and the Pedagogical Institute - IP as the main organ of education in compliance with this policy. The articles begin by discussing the challenges of teacher training in contemporary and an understanding of the need for training in its broadest sense, understand deep, and carrying it as basic education process. Is then characterized the training of teachers of basic education in Cape Verde, doing a little background of the challenges of teacher education in Cape Verde since even before independence is part of the analysis of the Education Strategic Plan in line with the actions of IP alleviate the shortage of trained teachers who acting in elementary school, to achieve the goal of the analysis used content analysis. It concluded with the understanding, as well as being lighter training for teachers in primary Cape Verde reveals a kind of interest that is not in favor the evolution of human consciousness and specifically with the emancipation of the individual.
Investigação comparada em educação: Aspectos teóricos e metodológicos / Comparative research in education: Theoretical and methodological aspects / Recherche Comparee En Education : Aspects Theoriques Et Methodologiques
Authors: Rezende Valéria M. , Isobe Rogéria Moreira R. , Moreira Fernanda Arantes
Published: December 2022

RESUMO: O objetivo deste artigo é discutir algumas questões teóricas e metodológicas que circunscrevem os estudos comparados em educação com intuito de contribuir para o debate acerca do atual processo de reconfiguração dessa modalidade de investigação no Brasil. São analisados os problemas relacionados à utilização do referencial teórico positivista-funcionalista bem como os elementos centrais que delineiam as novas perspectivas teórico-metodológicas. Ao final, são analisados os desafios e potencialidades heurísticas dessa modalidade de pesquisa.ABSTRACT: The purpose of this article is to discuss some theoretical and methodological issues that circumscribe comparative studies in education aiming to contribute to the debate about the current reconfiguration process of this modality of research in Brazil. Discusses the problems related to the use of positivist-functionalist theoretical framework as well as the core elements that outline the new theoretical and methodological perspectives. A the end, we analyze the heuristic challenges and potentials of this research mode.RÉSUMÉ: Cet article discute certaines questions théoriques et méthodologiques concernant les études comparées en éducation afin de contribuer au débat sur le processus actuel de reconfiguration de cef genre d'investigations au Brésil. Après une analyse des problèmes liés à l'utilisation du cadre de références théorique positiviste-fonctionnaliste et des éléments centraux constituant les grandes lignes des nouvelles perspectives théorico-méthodologiques, il examine les enjeux et les potentialités heuristiques de ce mode de recherche.
O PLANO NACIONAL DE EDUCAÇÃO E A BUSCA PELA QUALIDADE SOCIALMENTE REFERENCIADA
Authors: De Miranda Aranda Maria Alice , Ribeiro Lima Franciele
Published: December 2022

Resumo: O artigo tem como objetivo apresentar um estudo sobre o Plano Nacional de Educação 2014-2024, apreendendo o tema da qualidade da educação, com vistas a incitar discussões sobre a possibilidade de concretização de uma qualidade socialmente referenciada. Metodologicamente está fundamentado na perspectiva dialética, pautado pela pesquisa bibliográfica e documental. Depreende-se que a qualidade na educação não está imune a entendimentos dúbios, incertos, imprecisos, servindo a interesses vários. É preciso buscar compreendê-la em relação à totalidade das relações sociais, com base em uma concepção "histórico-social". Por este caminho é possível visualizar possibilidades de um projeto de sociedade, de educação e de ser humano sustentado por uma qualidade socialmente referenciada.
CONSELHOS MUNICIPAIS DE EDUCAÇÃO EM GOIÁS: PERCURSO LEGAL E DESAFIOS PARA ESTRUTURAÇÃO E FUNCIONAMENTO
Authors: Ferreira Alves Edson
Published: December 2022

Resumo: Este estudo apresenta e analisa o perfil dos Conselhos Municipais de Educação dos municípios goianos a partir de uma pesquisa feita com cursistas conselheiros participantes do Curso de Formação de Conselheiros Municipais de Educação, via Universidade Federal de Goiás, no período de 2010 a 2011. A metodologia compreende análise legal e a utilização de questionário fechado para levantamento de dados. A análise prioriza dados sobre organização, composição, representatividade, funções, atribuições e condições de funcionamento, com o objetivo de discutir a autonomia, legitimidade e relevância social desses colegiados nos cenários locais enquanto agentes na gestão de políticas educacionais.
CLASSE HOSPITALAR E ATENDIMENTO ESCOLAR DOMICILIAR: DIREITO DE CRIANÇAS E ADOLESCENTES DOENTES
Authors: Da Fonseca Eneida Simões
Published: December 2022

Este texto aborda a temática do atendimento escolar de crianças e adolescentes doentes e reflete sobre a construção social de conceitos no que se refere ao adoecer, ao hospital e à  hospitalização, ao nascer, ao viver e ao morrer. A terminologia utilizada para definir o atendimento escolar dado aos enfermos, o respaldo legal e os objetivos dessa modalidade de ensino são abordados. A clientela atendida e a dinâmica do trabalho escolar realizado são apresentadas, bem como o quantitativo de escolas em hospitais e de atendimento escolar domiciliar no contexto brasileiro. São discutidas as aproximações e os distanciamentos da realidade brasileira em relação a essa modalidade de ensino no contexto canadense, contribuindo para com algumas considerações sobre a escolaridade no ambiente hospitalar.
A PRÁTICA DE LEITURA DE UMA ESCOLA DA REDE PÚBLICA ESTADUAL DO TOCANTINS REORIENTADA PELA "PROVA BRASIL"
Authors: Almeida Núbia Régia de , Melo Márcio Araújo de
Published: December 2022

O objetivo deste artigo é averiguar e discutir se as políticas públicas de avaliações externas, especificamente a da Prova Brasil, podem influenciar o ensino de leitura dos professores de uma escola da rede pública estadual da cidade de Araguaína (TO) e, consequentemente, alterarem a cultura escolar dessa instituição de ensino. Trata-se de um estudo de caso com abordagem qualitativa. Os dados foram colhidos in loco por meio de observação de aulas e registros dos documentos escolares e também foram realizadas entrevistas com docentes, gestores escolares e da Secretaria Estadual de Educação. Constatou-se que, tanto as políticas de avaliações externas, principalmente a da Prova Brasil, quanto as políticas implantadas para dar suporte as essas avaliações provocaram a equipe escolar no sentido de alterar suas práticas escolares e de ensino de leitura, visando atender ao chamado dessas avaliações, e, por conseguinte, tais mudanças alteraram a cultura escolar da instituição de ensino.
Synthesis and characterization of bismuth oxide/commercial activated carbon composite for battery anode
Authors: Astuti Yayuk , Hartinah Siti , Darmawan Adi , Widiyandari Hendri
Published: December 2022

Bismuth oxide has been considered as a promising electrode material due to the high theoretical capacity, low cost, and non-toxic nature. However, its application has been limited by the low electrical conductivity. In this work, bismuth oxide/commercial activated carbon composite were successfully synthesized through hydrothermal method. Bismuth nitrate pentahydrate with concentrations of 8, 24, and 32 mmol were mixed with Na2SO4, NaOH, and commercial activated carbon. The mixture was then put into a hydrothermal reactor and heated at 110°C for 5 h. These composite materials can have a 102–105 higher electrical conductivity, depending on the bismuth oxide ratio, compared to both bismuth oxide and commercial AC separately.
Effects of in ovo injection of black cumin (Nigella sativa) extract on hatching performance of broiler eggs
Authors: Peşmen Günnur
Published: December 2022

The objective of this research is to state the impact of black cumin (Nigella sativa) extract in ovo injected at different doses on the hatchability of Cobb 500 Broiler fertile eggs. Injected doses of black cumin were 3 and 6 mg, applied to the air sac of the eggs on the 17.5th day of incubation. It has been established that, black cumin extract given to fertile broiler eggs had a positive effect on chick weight and chick length, but did not have a significant impact on hatching power and chick quality.
Speed and space: semantic asymmetries in motion descriptions in Estonian
Authors: Taremaa Piia , Kopecka Anetta
Published: December 2022

In this study, we investigate the expression of speed—one of the principal dimensions of manner—in relation to the expression of space in Estonian, a satellite-framed and morphology-rich language. Our multivariate and extensive corpus analysis is informed by asymmetries attested in languages with regard to expressing space (thegoal-over-sourcebias) and speed (thefast-over-slowbias) where we attempt to explicitly link the two. We demonstrate moderate speed effects in the data in that fast motion verbs tend to combine with Goal, and slow motion verbs with Location and Trajectory expressions, making verbs of fast motion similar to goal verbs in their clausal behaviour. We also show that semantic congruency (i.e., expressing semantic information repeatedly in motion clauses) overrides thegoal-over-sourcebias. That is, although verbs also occur in diverse patterns, they often combine with semantic units that mirror their meaning: goal verbs tend to combine with Goal, source verbs with Source, and manner verbs with Manner expressions. Such semantic congruency might serve as a tool for construal and, thus, is an important issue for future research.
Design and development of coherent-OOFDM techniques in wavelength division multiplexing optical network for long-haul communication
Authors: Gelmecha Demissie Jobir , Kefale Eyasu , Singh Ram Sewak , Venugopal Ellapan
Published: December 2022

Today, communication is a crucial factor and requires a high data rate for transmission with in an error-free environment, so optical communication has emerged as a best solution to high-speed transmission systems due to its higher bandwidth and higher data rates. Fiber optic transmission integrating with some modern processing and modulator techniques are applied in various areas that need transfer of data from one point to another through reducing an optical affect. Coherent optical orthogonal frequency division multiplexing is a popular technique in optical communication today because of the excessive spectral efficiency, immune to interference, tolerance of the fiber dispersion and it is long-haul application. It employs the OFDM modulation method, which is a type of multicarrier modulation in which data statistics are distributed over a large number of low-cost subcarriers and is a solution to inter-symbol interference. Inter-symbol interference is generated by chromatic dispersion in high-speed optical transmission systems, and it is a severe issue in long-haul systems in the case of higher data rates transmission. The use of standard dispersion compensating devices, such as dispersion compensating fiber, does not completely compensate for high order dispersion, which includes third-order and high dispersion effects and also increase the loses of the system because it is a fiber in itself. This study proposes introducing the concept of coherent optical orthogonal frequency division multiplexing techniques in to the wave division optical network in the case of multiple users, high data rate transmission and long-haul and ultra-long-haul optical link to reduce the optical transmission on related issues and to improve the performance of optical network. The performance of the proposed network can be evaluated by using different parameters such as signal to noise ratio, bit error rate, optical signal to noise ratio, Quality factor and eye-diagram at different distance transmission up to 8000 km by using Optisystem software.
Different mode operations based all optical fiber amplifiers with optical differential polarization quadrature phase shift keying transmitter
Authors: Rashed Ahmed Nabih Zaki , Altahan Baraa Riyadh , Manasavenna Thaticharla , Shanmugapriya Ganesan , Priya P. Poorna , Krishna M. Rama , Ahammad S.K. Hasane , Hossain Md. Amzad , Sorathiya Vishal , Smirani Lassaad K. , Said Ahmed Helmy
Published: December 2022

This paper simulated the different mode operations based all optical fiber amplifiers with optical differential polarization quadrature phase shift keying transmitter. Gain mode operation, power mode operation and saturation mode operation based all optical fiber amplifiers are employed to measure the signal power, noise power level at both spectral time domain and frequency domain. The peak signal power and signal power amplitude are accurately measured for different mode operations based all fiber optical amplifiers. The performance is enhanced with saturation mode operation based all optical fiber amplifiers.
On the comparability of prosodic categories: why ‘stress’ is difficult
Authors: Himmelmann Nikolaus P.
Published: December 2022

This article argues that the prosodic category stress in West Germanic languages, which implicitly underlies practically all work on stress, is a complex cluster concept consisting of at least six dimensions which in turn involve a number of subdimensions. Because of its complexity, this concept is not useful for cross-linguistic comparison. A promising starting point for further typological inquiry is one of the six dimensions, i.e. acoustic and auditory prominence. However, identifying acoustic and auditory prominence distinctions cross-linguistically is also not straightforward and requires considerable empirical effort. Nevertheless, cross-linguistic comparison is still possible in the case of ‘difficult’ cluster concepts such as stress and does not require the use of arbitrary comparative concepts.
A human error risk priority number calculation methodology using fuzzy and TOPSIS grey
Authors: Wang Xiaochuan
Published: December 2022

In the implementation of management error proofing, enterprises need to carry out risk evaluation and ranking of management activities error, to determine error proofing improvement order. We note that management function failure is different from industrial failure, and the management activity error as its cause is also different from operational or device error, so the method generally used in industry is not suitable for the risk assessment of management activity error. To address this issue, this study integrates the FMEA (failure modes and effect analysis) with the ISO9001 standardized management system framework describing multilevel and multi-attribute management activities, and the human errors that may lead to functional failure of quality management activities are identified at each level and each category. The three factors (severity (S), occurrence (O), and detection (D)) of errors in each management activity are evaluated and integrated into the risk priority number for each quality management activity error. The two major defects of the traditional FMEA in the practical application process are as follows: (1) the evaluation of error attributes of various management activities is basically qualitative language description, which cannot be quantified; (2) the other one disadvantage is that it ignores the fact that three factors have the different weights in the system rather than equality, and not considering the relative importance of between them. In this article, the fuzzy set theory and the grey relational decision theory are, respectively, applied to improve the two defects and to improve the accuracy of the decision. Finally, a numerical example of a coal mine is given to verify the effectiveness of the proposed method. This study provides a basis for managers and practitioners to quantitatively evaluate and prevent errors in management activities.
A monotone iteration for a nonlinear Euler-Bernoulli beam equation with indefinite weight and Neumann boundary conditions
Authors: Wang Jingjing , Gao Chenghua , He Xingyue
Published: December 2022

In this article, we focus on the existence of positive solutions and establish a corresponding iterative scheme for a nonlinear fourth-order equation with indefinite weight and Neumann boundary conditions

y

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\left\{\begin{array}{l}{y}^{\left(4)}\left(x)+\left({k}_{1}+{k}_{2}){y}^{^{\prime\prime} }\left(x)+{k}_{1}{k}_{2}y\left(x)=\lambda h\left(x)f(y\left(x)),\hspace{1em}x\in \left[0,1],\\ y^{\prime} \left(0)=y^{\prime} \left(1)={y}^{\prime\prime\prime }\left(0)={y}^{\prime\prime\prime }\left(1)=0,\\ \end{array}\right.

where

k

1

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and

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are constants,

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is a parameter,

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may change sign, and

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(

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+

,
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,

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≔

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. We first discuss the sign properties of Green’s function for the elastic beam boundary value problem, and then we establish some new results of the existence of positive solutions to this problem if the nonlinearity

f

f

is monotone on

R

+

{{\mathbb{R}}}^{+}

. The technique for dealing with this article relies on a monotone iteration technique and Schauder’s fixed point theorem. Finally, an example is presented to illustrate the application of our main results.
The effect of filler loading and APTES treatment on the performance of PSf/SBA-15 mixed matrix membranes
Authors: Vatankhah Gholamhossein , Aminshahidy Babak
Published: December 2022

The fabrication of mixed matrix membranes (MMMs) is of particular importance due to their advantages over neat membranes. The performance of MMMs is a function of the type and fraction of the nanoparticles in the membrane. Moreover, the proper interaction of the polymer and nanoparticles affects the MMMs performance. In this study polysulfone (PSf)/SBA-15 mesoporous silicas MMMs were prepared and their performance was evaluated for CO2/CH4 gas separation. SBA-15 mesoporous silicas were previously synthesized and functionalized with 3-aminopropyltriethoxysilane by post-synthesis treatment. Fourier transform infrared spectroscopy, field emission scanning electron microscopy, N2 adsorption–desorption, and Brunauer–Emmett–Teller analysis was applied to examine the functional groups, morphology, and textural properties of the unmodified and modified mesoporous silica in the prepared membrane, respectively. The effects of modified and unmodified SBA-15 particle loading were investigated for the gas separation performance of PSf/SBA-15 membranes. The experimental results illustrate that a higher modified mesoporous silica loading leads to an increase in gas permeance and gas pair selectivity. The highest increase in permeability and selectivity was related to the incorporation of S2 and AP-S2 into the PSf matrix, respectively.
Rapid incorporation of gold nanoparticles onto graphene oxide-polymer nanofiber membranes for photothermally-accelerated water purification
Authors: Hou Jian , Yun Jaehan , Jang Wongi , Li Bin , Adehinmoye Adewale Adedayo , Kim Jun-Hyun , Byun Hongsik
Published: December 2022

This work demonstrates the rapid coating of gold nanoparticles (AuNPs) onto electrospun composite polyacrylonitrile (PAN) nanofibers containing a large amount of graphene oxide (GO) and reduced graphene oxide (rGO) for photothermally-driven applications. A modification of GO with a cationic surfactant greatly improves its loading efficiency into the PAN nanofibers, and the subsequent hydrazine treatment readily converts the integrated GO into rGO. Rapid loading of AuNPs onto these membranes results in measurably higher photothermal heating characteristics than the pristine PAN, GO-PAN, and rGO-PAN membranes under a solar-simulated light source. The light-induced heating properties are then utilized in the removal of organic dyes in an aqueous solution. While the GO-PAN and rGO-PAN membranes remove the dyes via physical adsorption, the AuNP-loaded membranes show an additional catalytic decomposition process, resulting in detectably faster removal rates. The degradation of the organic dyes is accelerated under a solar simulated light source due to the light-enhanced heating and photocatalytic properties of the integrated AuNPs. The ability to maximize the dual properties of these membranes can greatly reduce toxic organic pollutants, which can lead to the development of practical water purification systems under sunlight irradiation.
Function of Excitatory Periaqueductal Gray Synapses in the Ventral Tegmental Area following Inflammatory Injury
Authors: Manning Claire Elena , Fritz Michael , Kauer Julie Ann
Published: December 2022

Manipulating the activity of ventral tegmental area (VTA) dopamine (DA) neurons can drive nocifensive reflexes, and their firing rates are reduced following noxious stimuli. However, the pain-relevant inputs to the VTA remain incompletely understood. In this study, we used male and female mice in combination with identified dopamine and GABA neurons in the VTA that receive excitatory inputs from the periaqueductal gray (PAG), a nexus of ascending pain information. We tested whether PAG–VTA synapses undergo functional plasticity in response to a pain model using optical stimulation in conjunction with slice electrophysiology. We found that acute carrageenan inflammation does not significantly affect the strength of excitatory PAG synapses onto VTA DA neurons. However, at the PAG synapses on VTA GABA neurons, the subunit composition of NMDA receptors is altered; the complement of NR2D subunits at synaptic sites appears to be lost. Thus, our data support a model in which injury initially alters synapses on VTA GABA neurons. Over time, these alterations may increase tonic inhibition of VTA DA neurons leading to their reduced firing.
Cervical Epidural Electrical Stimulation Increases Respiratory Activity through Somatostatin-Expressing Neurons in the Dorsal Cervical Spinal Cord in Rats
Authors: Galer Erika L. , Huang Ruyi , Madhavan Meghna , Wang Emily , Zhou Yan , Leiter James C. , Lu Daniel C.
Published: December 2022

We tested the hypothesis that dorsal cervical epidural electrical stimulation (CEES) increases respiratory activity in male and female anesthetized rats. Respiratory frequency and minute ventilation were significantly increased when CEES was applied dorsally to the C2–C6 region of the cervical spinal cord. By injecting pseudorabies virus into the diaphragm and using c-Fos activity to identify neurons activated during CEES, we found neurons in the dorsal horn of the cervical spinal cord in which c-Fos and pseudorabies were co-localized, and these neurons expressed somatostatin (SST). Using dual viral infection to express the inhibitory Designer Receptors Exclusively Activated by Designer Drugs (DREADD), hM4D(Gi), selectively in SST-positive cells, we inhibited SST-expressing neurons by administering Clozapine N-oxide (CNO). During CNO-mediated inhibition of SST-expressing cervical spinal neurons, the respiratory excitation elicited by CEES was diminished. Thus, dorsal cervical epidural stimulation activated SST-expressing neurons in the cervical spinal cord, likely interneurons, that communicated with the respiratory pattern generating network to effect changes in ventilation.

SIGNIFICANCE STATEMENTA network of pontomedullary neurons within the brainstem generates respiratory behaviors that are susceptible to modulation by a variety of inputs; spinal sensory and motor circuits modulate and adapt this output to meet the demands placed on the respiratory system. We explored dorsal cervical epidural electrical stimulation (CEES) excitation of spinal circuits to increase ventilation in rats. We identified dorsal somatostatin (SST)-expressing neurons in the cervical spinal cord that were activated (c-Fos-positive) by CEES. CEES no longer stimulated ventilation during inhibition of SST-expressing spinal neuronal activity, thereby demonstrating that spinal SST neurons participate in the activation of respiratory circuits affected by CEES. This work establishes a mechanistic foundation to repurpose a clinically accessible neuromodulatory therapy to activate respiratory circuits and stimulate ventilation.
SÜT, İNSÜLİN BENZERİ BÜYÜME FAKTÖRÜ (IGF-1) ve SAĞLIK
Authors: EL Sedef Nehir , KARAKAYA Sibel
Published: December 2022

Tüm memeli sütlerinde farklı miktarlarda bulunan insülin benzeri büyüme faktörü (IGF-1) yenidoğan için büyüme gen sinyalizasyon sisteminin başlıca düzenleyicisidir. Önemli bir anabolik hormon olan IGF-1’in temel biyolojik fonksiyonları hücre metabolizmasının düzenlenmesi, büyüme, hücre çoğalması ve programlı hücre ölümüdür. Serumdaki IGF-1’in seviyesi ile insan sağlığı üzerine olumlu ve olumsuz etkilerini veya hastalık risklerini ortaya koyan çalışmalar bulunmaktadır. Serum IGF-1 seviyesindeki azalma, kalp-damar hastalıkları, kalp otofaji, hipertansiyon, sarkopeni, sinir sistemi hastalıkları ve tip 2 diyabet riskleri ile ilişkilendirilirken, yüksek IGF-1 miktarı prostat, menopoz öncesi meme ve kolerektal kanserlerle ve yaşam süresinin kısalmasıyla bağlantılı bulunmaktadır. IGF-1’in Alzheimer, demans, Parkinson hastalıklarından koruyucu etkisi olduğu bilinmektedir. Sistematik derlemeler ve meta analiz çalışmaları incelendiğinde, süt tüketiminin IGF-1 seviyesi ve sağlık üzerine etkileri ile ilgili daha tutarlı sonuçlar elde etmek için daha fazla çalışmaya ihtiyaç olduğu anlaşılmaktadır. Ayrıca sütteki IGF-1’in miktar olarak ve moleküler düzeyde, süte uygulanan ısısal olan veya olmayan işlemlerden ve sindirimden nasıl etkilendiğine dair çalışmalar yetersizdir.
Radicalism Among Indonesia’s Young Generation: How to Overcome It?
Authors: Maunah Alfi
Published: December 2022

Indonesia is a multicultural country that has diverse ethnicities, religions, and cultures so that it has a great opportunity for various understandings to enter the Indonesian state. One of them is radicalism or often referred to as radicalism. With this opportunity, radicalism will easily enter the Indonesian state if citizens do not have a strong understanding of something, especially about the morals of the Indonesian nation itself. In this case, radicalism often spreads among the younger generation. So many things need to be considered from the impact of radicalism in the future. The psychological condition of the young generation is very easy for new ideas to enter. The younger generation, especially teenagers, are the targets of radical groups because adolescence is a period that is vulnerable to being influenced by the free environment. At the time of adolescence, the younger generation will look for identity and desire to set a vision and mission for the future. Counseling guidance services. Therefore, this scientific work intends to discuss further about the dangers of radicalism.
Diabetes insipidus in a patient with PCOS treated with Depo-Provera
Authors: Martinez Amanda I , Mezitis Nicholas
Published: December 2022

Depot medroxyprogesterone acetate, also known as Depo-Provera, is a progesterone-only contraceptive that is administered by injection to patients every three months. We describe the case of a 19-year-old female who was diagnosed with central diabetes insipidus following the administration of the contraceptive injection Depo-Provera. The patient was diagnosed with polycystic ovarian syndrome at age 16 and was originally prescribed oral contraceptives to restore menstrual regularity. Three years later, Depo-Provera was substituted for convenience, and symptoms of polyuria and polydipsia appeared one month after initiating the progesterone-only regimen. We are proposing that central diabetes insipidus may be a possible adverse effect of Depo-Provera in women with polycystic ovarian syndrome who receive the progesterone-only contraception, due to the interference of their arginine vasopressin mechanism through the alteration of estrogen levels. We review potential mechanisms through the presentation of previously completed research in polycystic ovarian syndrome.

Learning points

We propose that although rare, the decrease in estrogen that is experienced during the administration of Depo-Provera can interfere with arginine vasopressin release in patients with polycystic ovarian syndrome (PCOS).

Increased awareness of possible lasting adverse effects on fluid balance with unopposed progesterone administration in PCOS is important, as this case of the development of diabetes insipidus suggests.

Discussion of such potential side effects is important when considering contraceptive options for the regulation of menses in patients with PCOS.
Cementation in total hip arthroplasty: history, principles, and technique
Authors: Satalich James R , Lombardo Daniel J , Newman Simon , Golladay Gregory J , Patel Nirav K
Published: December 2022

Total hip arthroplasty (THA) is a remarkably successful operation that has grown rapidly its utilization.

Early modern THA constructs as developed by Sir John Charnley featured cemented femoral stems and acetabular components. The technique of cementing components for THA has evolved over time.

Modern acetabular preparation requires exposure of the subchondral bone with appropriate cement penetration into the trabecular bone, whereas femoral preparation requires cleaning of the canal, cement restrictor placement, retrograde filling, and pressurization of the cement.

When used appropriately, these techniques result in excellent long-term survivorship of implants and are also widely considered to be the ideal method of fixation for hip fractures.

The purpose of this article to review the history, properties, techniques, and outcomes of bone cement utilization in THA.
Beteiligungscontrolling bei Vonovia
Authors: Akelbein Torsten , Neuhaus Torsten , Reuß Fabian , Schroven Christian , Voßmann Arne
Published: December 2022

M&A-Aktivitäten stellen sich für Unternehmen rückblickend zu häufig als Wertverlust heraus. Anhand des Praxisbeispiels der Vonovia SE wird dargelegt, dass das Beteiligungscontrolling durch stringente Akquisitionskriterien und ein differenziertes Synergiecontrolling die Weichen für Wertsteigerungen durch Übernahmen stellen kann.
Centroamérica en código COVID 19: ¿Nuevas oportunidades para la cooperación y la integración regional?
Authors: Artavia-Medrano Argentina
Published: December 2022

The pandemic that emerged at the beginning of the year 2020 caused uncertainty in countries, governments, societies, and organizations, by placing themin front of unknown and complex scenarios. It is imperative for the discipline of International Relations, closely linked to global political circumstances, to develop analyzes based on the identification of the most relevant facts, the behavior of the actors and their links, as well as the challenges and threats faced by states, regions, and societies, within the International System. Even when the consequences that the different crises -political, social, economic, migratory, and health- may have caused in the dynamics of global relations have not been conclusively determined, as well as the elements that allow determining changes or continuities in the International System, this article aims to provide some preliminary elements to identify some of the actions in which Central America, through the Integration System (SICA), initially faced the health crisis due to COVID 19, which posed different challenges to the member countries and to the functioning of the regional institutions. In conditions as complex as the current ones, it is pertinent to ask whether integration and cooperation turn out to be viable options to solve regional problems. The reflections shared in this article aim to contribute to the debate regarding the opportunities that Central American regional integration offers in the context of pandemics.
Reseña del libro: Pandemia y crisis el COVID-19 en América Latina. Gutiérrez. G., Herrera, S., Kemmer, J., Peña, L., et ál. (2021). (1.ª ed.). Universidad de Guadalajara
Authors: Bolaños-Barquero Mary Cruz
Published: December 2022

"Pandemia y crisis. El COVID-19 en América Latina" is a collective work by Latin American authors aiming to analyze the reality lived by the countries facing the pandemic by COVID-19 in the region from a social, economic, and public policy formulation perspective. Then, the diversity of effects on society is studied with an important increase in unemployment and businesses closing due to lockdowns leading to the increase of informal jobs and the socioeconomic effects of it.
Propuesta lúdica de educación para la paz
Authors: Cerdas Agüero Evelyn
Published: December 2022

This text aims to encourage a pedagogical process of education for peace in order to work with different groups (children and adolescents) to promote and build a culture of peace based on a ludic and experiential approach. It is a ludic educative proposal for peace based on six topics: peace culture, communication for peace, transformation and peaceful resolution of conflicts, scholar violence prevention, and our rights (human rights education component). It concludes that peace education is a pedagogical project and a human right that promotes the understanding between individuals and the development of skills, knowledge, and attitudes that allow harmonic social relations in order to respect human dignity.
La contribución de la Universidad Nacional a la visibilización del trabajo no remunerado a través de los estudios de uso del tiempo
Authors: Sandoval Carvajal Irma
Published: December 2022

The following article aims to evidence the contributions that the National University of Costa Rica (UNA) has made to the visibilization of unpaid work, which includes domestic and voluntary work and the production for self-consumption, measured through time-use surveys. The main contributions from the conceptual and methodological point of view that made 2004, 2011, and 2017 measurements possible are described. In addition, the contribution of the UNA in the first economic valuation of unpaid work is highlighted, and some of the gender gaps in the use and distribution of time are presented, with emphasis on unpaid domestic work, based on the 2017 National Time Use Survey. Some of the results are presented by the area of residence, in addition to indicating whether the work was performed on weekdays or weekends.
A Revised Comparison between Fama and French Five-Factor Model and Three-Factor Model——Based on China's A-Share Market
Authors: Zhang Zhijing , Yu Yue , Ma Qinghua , Yao Haixiang
Published: December 2022

In allusion to some contradicting results in existing research, this paper selects China's latest stock data from 2005 to 2020 for empirical analysis. In this paper, the redundant factors (HML, CMA) are orthogonalized, and the regression analysis of the 5*5 portfolio of Size-B/M and Size-Inv is carried out with these two orthogonalized factors. It found that the HML and the CMA are still significant in many portfolios, indicating that they have a strong explanatory ability, which is also consistent with the results of GRS test. All these show that the five-factor model has a better ability to explain the excess return rate. Then, we analyze the possible reasons for the strong explanatory ability of the HML, CMA, and RMW from the aspects of price-to-book ratio, turnover rate, and correlation coefficient. We also explain the results and analyze China's stock market policy changes and investors' investment style in recent years.
Wear-resistant protective coating
Authors:   Department of Monitoring and Diagnostics of Power Engineering Facilities, Babak Vitalii , Shchepetov Vitaly ,   Department of Monitoring and Diagnostics of Energy Facilities, Kharchenko Olena , Kharchenko Serhii ,   Department of Monitoring and Diagnostics of Energy Facilities
Published: December 2022

Considered modern technologies for the formation of composite detonation crystalline and amorphous-crystalline coatings, their friction and wear under the conditions of the presence and absence of lubricant, compatibility with structural and antifriction materials, as well as the influence of the stress state on their formation. The monograph consists of six chapters. Chapter 1 discusses the general issues of friction and wear research of composite detonation coatings in the absence of lubricant. It is shown how the sliding speed affects the wear of the friction surfaces. The evaluation of the features of wear in conditions of heavily loaded contact and the formation of coatings in conditions of elevated temperatures is given. Chapter 2 shows how the presence of lubricant affects the wear of composite detonation coatings. The role of tribochemical processes in the formation of wear-resistant surface structures and the wear resistance of coatings in the presence of lubricant in contact, the influence of elemental-organic additives on the processes of friction and wear are revealed. Chapter 3 deals with the compatibility of coatings with antifriction and structural materials. On the basis of the obtained results, friction pairs from structural and antifriction materials were selected, as well as the operational stability of detonation coatings in these friction pairs was studied. Chapter 4 describes the principles of forming amorphous and amorphous-crystalline coatings. The selection and justification of the components of the wear-resistant amorphous-crystalline coating, their influence of the nature of alloying elements on the properties of zirconium-based coatings are considered. The influence of technological parameters of detonation sputtering on the formation of detonation amorphous-crystalline coatings Chapter 5 presents the results of research on friction and wear of amorphous-crystalline coatings in the absence of lubricant. The wear resistance of amorphous-crystalline coatings in friction with tested coatings was studied. The wear resistance of amorphous-crystalline coatings with aircraft steels and the patterns of wear of amorphous-crystalline coatings with anti-friction materials were studied. Chapter 6 examines the features of the formation of the stress state of amorphous-crystalline detonation coatings. An assessment of the level of technological residual stresses in friction pairs and their effect on wear resistance was carried out. The influence of residual stresses on the wear resistance of the obtained coatings is shown. For researchers, engineers, as well as teachers, graduate students and students of higher educational institutions dealing with the problems of formation and research of detonation coatings.
The influence of powder contamination on the percolation limit of metal-ceramic composites obtained from polydisperse powder mixtures
Authors:   I. M. Frantsevich Institute for Problems of Materials Science of NAS of Ukraine, Kuzmov A. , Shtern M. ,   I. M. Frantsevich Institute for Problems of Materials Science of NAS of Ukraine
Published: December 2022

A theoretical method of finding by simulation computer modeling the percolation limit of composites of powder origin, which are obtained on the basis of polydisperse powder mixtures of the conductive and insulating phase, is proposed. At the same time, the degradation of the conductivity of conductor particles skeleton due to oxidation or other contamination of the surface of the particles is taken into account. To study the flow threshold of materials obtained on the basis of polydisperse powder mixtures, the use of regular packings of particles, which are considered in the classic problems of perco¬lation theory, for example, square or hexagonal packing, is not acceptable even in the first approximation. Because in such packages all particles are the same, or the ratio of particle sizes is fixed. At the same time, as is known from the practice of obtaining metal-ceramic composites, the size distribution of conductor and insulator particles is one of the determining factors. Therefore, a generator of random filling of a polydisperse mixture of round particles into a rectangular hopper was developed using the Fortran programing language. The influence of the particle size ratio of the conductive and insulating phases and the relative contamination of the conductor particles on the percolation limit in the composite was studied. It is shown that in the case when the size of the conductor particles decreases in relation to the size of the insulator particles, the value of the percolation limit decreases, that is, conductivity can be achieved even with asmall content of the conductive phase. In this way, the conductivity of the metal-ceramic composite can be controlled without changing the concentration of the conductive phase, but only by varying the size of the metal and ceramic particles. But as the simulation results showed, this method of controlling the conductivity is very sensitive to the oxidation of the metal powder. Even a relative oxidation of the powder surface of 0,1 doubles the concentration of the metal phase required for percolation. Keywords:bidisperse packaging, percolation limit, ballistic filling, metal-ceramic composites, oxidized metal powders.
Modeling of the phenomenon of brittle-plastic transition by the method of dislocation dynamics
Authors:   I. M. Frantsevich Institute for Problems of Materials Science of NAS of Ukraine, Borysovska K. M.
Published: December 2022

Computer modeling by the DD method is based on the Rice and Thompson model, according to which the force reliefnear the crack tip is created by three forces: an external load, an image force acting on dislocations from the free surfaces, and a resistance force from the crystal lattice. The interaction between dislocations in the plastic zone is calculated step by step. At each step, the stress is calculated for all dislocations in the ensemble and the velocities and corresponding new positions are calculated. Computer calculations make it possible to predict the impact of dislocation ensemble shielding on the current value of the stress intensity factor. The calculated value of crack resistance was determined under the condition of reaching the critical value of the stress intensity coefficient of the brittle material at the crack head. The effect of temperature and strain rate on the viscous-brittle transition in polycrystalline molybdenum was modeled using the dislocation dynamics method. From the results of the calculations, it follows that when the test temperature changes, the size of the plastic zone increases by more than an order of magnitude. As the loading rate decreases, the abnormal increase in crack resistance shifts to smaller grain sizes. This effect is significantly smaller than the effect of temperature. Changing the parameters of the model does not change the general mechanism of the viscous-brittle transition, which is associated with the peculiarities of the interaction of dislocations in the plastic zone with grain boundaries in polycrystalline molybdenum. Regardless of the speed of loading and the temperature of the tests, three characteristic ranges of grain sizes can be distinguished: With large grains, the fracture toughness remains unchanged because the size of the plastic zone is much smaller than the grain size. With the average grain size, a dislocation cluster is formed near the boundary, grain boundary sources begin to work in the neighboring grain, forming a small number of dislocations there, which contributes to a slight increase in crack resistance. With a small grain size, the fracture toughness begins to increase rapidly, since the plastic zone covers several grains. The dislocation cluster moves to the top of the crack and screens its propagation. Keywords: phenomenon of brittle-plastic transition, dislocation clustering, dislocation dynamics.
Intra-arrest transesophageal echocardiography during cardiopulmonary resuscitation
Authors: Hwang Sung Oh , Jung Woo Jin , Roh Young-Il , Cha Kyoung-Chul
Published: December 2022

Determining the cause of cardiac arrest (CA) and the heart status during CA is crucial for its treatment. Transesophageal echocardiography (TEE) is an imaging method that facilitates close observation of the heart without interfering with cardiopulmonary resuscitation (CPR). Intra-arrest TEE is a point-of-care ultrasound technique that is used during CPR. Intra-arrest TEE is performed to diagnose the cause of CA, determine the presence of cardiac contraction, evaluate the quality of CPR, assist with catheter insertion, and explore the mechanism of blood flow during CPR. The common causes of CA diagnosed using intra-arrest TEE include cardiac tamponade, aortic dissection, pulmonary embolism, and intracardiac thrombus, which can be observed on a few simple image planes at the mid-esophageal and upper esophageal positions. To operate an intra-arrest TEE program, it is necessary to secure a physician who is capable of performing TEE, provide appropriate training, establish implementation protocols, and prepare a plan in collaboration with the CPR team.
brinde às fontes
Authors: El Fahl Alana de Oliveira Freitas
Published: December 2022

O presente artigo busca estabelecer uma relação entre a teledramaturgia brasileira e suas fontes literárias. Inicialmente, traçamos um breve histórico dessa relação a partir das origens da telenovela no Brasil e suas primeiras produções que consistiam em adaptações dos nossos clássicos. Com o passar dos anos, observa-se que essa relação vai se sofisticando e que o recurso da intertextualidade se corporifica sob diversas formas explícitas ou implícitas. Analisamos esse profícuo diálogo em tramas exibidas nas últimas décadas pela Rede Globo de Televisão. Utilizamos como principais aportes teóricos Alencar (2002), Reimão, (2004), Meyer (2005) e Moratelli (2019).