bluuebunny/crossref_metadata_2025 huggingface dataset:
New Trends in the Modern Sex Industry and Its Criminological Risks
Authors: Alikhadzhieva I. S.
Published: May 2021

The paper presents an original analysis of the state of the modern sex industry as the largest shadow segment of the Russian economy. The relevance of the study consists in identifying and describing new criminal marketing schemes to maintain the demand for sexual services, which, among other things, contribute to an increase in the rates of sexual exploitation and serious crimes against the individual. The subject of this research is the sex industry as a social phenomenon; its purpose is to describe new trends in its functioning. Based on foreign and Russian criminological sources, the author developed the sex industry concept, identified its structure, and classified the forms of sexual activity and subjects. The novelty of the study is determined by the fact that for the first time the author gives a criminological characteristic of new directions in the development of the sex industry as an economically significant segment of the shadow market. In this regard, criminological risks of deviant sexual behavior are predicted, the development of which can lead to an outbreak of latent criminal violence, fraudulent activities, etc. Based on predictive estimates, in order to reduce the consequences of the massive use of Internet platforms that facilitate virtual transactions for the sale of virginity, sexual services and child pornography, their creators and administrators should be brought to administrative responsibility. In practical terms, the results of the study include proposals on criminal law criteria for distinguishing between these offenses and the argumentation of qualification decisions.
A Matemática do Ensino e os Documentos Curriculares: Bases Teórico-Metodológicas Para Análise da Produção de Novos Saberes
Authors: Valente Wagner Rodrigues
Published: April 2021

ResumoComo historicamente é possível realizar a análise dos processos e dinâmicas de elaboração de novos saberes para o ensino de matemática e para a formação do professor que ensina matemática fixados em documentos curriculares? Buscando responder a esta questão o objetivo deste texto é analisar que bases teórico-metodológicas podem ser mobilizadas de modo a ser possível caracterizar a matemática do ensino, constructo teórico que articula a matemática do ensino e a matemática da formação de professores. A análise envolve metodologia vinda do campo histórico. Dentre os autores mobilizados para desenvolvimento do estudo estão Chervel (1990) e os seus trabalhos sobre história das disciplinas escolares; também Julia (2000) e a introdução do conceito de cultura escolar; Hofstetter & Schneuwly (2020) e os saberes para a formação de professores, dentre outros. Como resultados apontam-se três referências fundamentais: a sócio-história, a mobilização do conceito de experts e o uso das variações de escala.

Palavras-chave: Sócio-História. Experts. Currículo. Formação de Professores. Matemática

AbstractHow historically is it possible to analyze processes and dynamics for the development of new knowledge for the teaching of mathematics and for the training of teachers who teach mathematics fixed in curricular documents? Seeking to answer this question, the objective of this text is to analyze which theoretical and methodological bases can be mobilized in order to be able to characterize mathematics from teaching, a theoretical construct that articulates mathematics to teach and the mathematics for teaching. The analysis involves methodology from the historical field. Among the authors mobilized for the development of the study are Chervel (1990) and his works on the history of school subjects; also Julia (2000) and the introduction of the concept of school culture; Hofstetter & Schneuwly (2020) and the knowledge for teacher training, among others. As results, three fundamental references are pointed out: socio-history, the mobilization of the concept of experts and the use of variations in scales.

Keywords: Socio-History. Experts. Curriculum. Teacher Training. Mathematics.
Parque Nacional Obô: Conhecimento e perceções acerca da sua importância em alunos de S. Tomé
Authors: Almeida António , Ribeiro Sandra , Botelho Helena
Published: May 2021

Em S. Tomé e Príncipe foi criado o Parque Nacional Obô em 2006 com a missão de preservar a importante biodiversidade do território. O presente estudo procurou verificar o conhecimento e perceções acerca do Parque de 112 alunos a frequentar duas escolas no Distrito da Capital, 51 do 7.º ano e 61 do 11.º ano de escolaridade. Para tal foi administrado um questionário que visava saber se os alunos já tinham visitado o Parque; se sabiam as razões da sua criação; o tipo de atividades que nele deviam ser ou não permitidas; as vantagens e desvantagens da sua existência; e se já haviam sido beneficiados ou não pela sua existência. O teor das respostas foi muito semelhante nos alunos de ambos os anos de escolaridade, tendo a maioria afirmado nunca ter visitado o Parque e manifestado dificuldades em o localizar geograficamente. Conseguiram, ainda assim, avançar com razões que estiveram na base da sua criação, destacando mais vantagens do que desvantagens e afirmam nunca ter sido prejudicados pela sua existência em termos pessoais ou familiares. Globalmente, os inquiridos revelam um significativo desconhecimento do Parque Nacional e a escola não parece ter ainda contribuído o suficiente para a sua divulgação e visitação.
“Mulleres colleiteiras” e alumnado de Educación Social: unha experiencia de aprendizaje e servizo
Authors: Arza Arza Neves , Cruz López Laura , Serantes-Pazos Araceli
Published: May 2021

No curso 2015/16, o alumnado de 1º e 3º de Educación Social participou nun proxecto de Aprendizaxe e Servicio (ApS) co colectivo de “Mulleres colleiteiras”. Os obxectivos fóron visibilizar o seu traballo de recollida e valorización dun residuo –aceites domésticos usados– e conseguir maior apoio da comunidade universitaria na recollida. “Mulleres colleiteiras” son unha cooperativa de traballo asociado formado por mulleres en situación de exclusión social, co apio da ONGD Arquitectura sen Fronteiras. A súa iniciativa ten un triple beneficio: económico, social e ambiental. O alumnado -no marco de tres materias- deseñou unha campaña de sensibilización centrada en tres dimensións: coñecer as razóns de exclusión social e laboral deste colectivo, coñecer os problemas do verquido de aceite doméstico na rede de auga potable e coñecer en profundidade a iniciativa das “mulleres colleiteiras”. Os resultados foron moi positivos por: o incremento de aceite recollido, o recoñecemento que recibiron as mulleres e a satisfacción do alumnado en aunar coñecemento-acción-transformación.
Relación entre absorción de tecnología en Colombia y adopción tecnológica en Estados Unidos
Authors: Carvajal-Álvarez Leonardo Andrés
Published: May 2021

Este artículo tuvo como propósito presentar un estudio para determinar la relación entre la absorción de tecnología en Colombia y la adopción tecnológica en Estados Unidos entre 2006 y 2018, como parte de la preparación tecnológica dentro del escenario de factores que mejoran la eficiencia, con el fin de establecer elementos para promover la capacidad de absorción a nivel empresarial colombiano. El método utilizado fue descriptivo u observacional, no experimental, donde ninguna de las variables estuvo influenciada. Correspondió a un estudio cuantitativo, con variables no controladas y de tipo transversal, que tomó los resultados de los indicadores respectivos que hacen parte del Índice de Competitividad Global (ICG) presentado en el Reporte de Competitividad Global (RCG) del Foro Económico Mundial (FEM). Se plantearon hipótesis y se aplicó análisis estadístico de regresión lineal y coeficiente de correlación para las variables identificadas. Los resultados del proceso de verificación estadística correspondieron al análisis multivariado y bivariado entre indicadores, para las combinaciones planteadas de ellos, deduciendo relaciones y niveles de dependencia e influencia. La discusión y las conclusiones giraron alrededor de la interpretación de los resultados y la determinación del grado de relación entre los indicadores estudiados, lo que puede aportar como argumentos que orienten hacia una alternativa de solución para promover la capacidad de absorción en el contexto de las pequeñas y medianas empresas (pymes) colombianas.
características de las generaciones millennials y centennials frente a la evolución de las tecnologías y su influencia en la compra de productos del sector asegurado
Authors: Cardona-Giraldo Leidy Cristina , Castillo-Garcia Gustavo Adolfo , Flórez-Flórez Jennifer
Published: May 2021

La Agencia de Talento Digital en su publicación de noviembre del 2019, indica entre otras cosas que para el año 2025 las generaciones millennials y centennial representaran el 70% y 30% de la fuerza laboral mundial respectivamente con factor común, “la conexión a internet desde su Smartphone”. Esta situación permitió identificar la problemática principal de la investigación teniendo en cuenta además las experiencias como instructores del Centro de Servicios Financieros y específicamente el programa de Gestión de riesgos. Los jóvenes de las generaciones descritas estiman que no es importante adquirir un seguro en razón a que consideran que hacerlo es un gasto innecesario y que la información que tienen al respecto no es determinante para adquirirlo. Esta investigación, pretende mostrar la percepción, el interés, conocimiento y adquisición de productos financieros del sector asegurador en las generaciones mencionadas, teniendo especial atención en el papel que juega el desarrollo tecnológico en dichos procesos de compra. La metodología utilizada es de tipo descriptivo con un enfoque mixto (cuantitativa y cualitativa); la recolección de información se realizó a través de encuestas, a una muestra representativa en la cuidad de Bogotá - localidad de Chapinero, y entrevistas a Directores comerciales de las principales aseguradoras del país. La recolección de la información permitió permitió medir el impacto que tiene la edad, la cultura de consumo de las personas, los medios de compra tradicional y/o digital y cómo afectan estos en las decisiones de adquisición de productos del sector asegurador.
Disección anatómica del oído medio y el oído interno
Authors: Osorio-Toro Sonia , Moreno-Restrepo Wilmer Andrés , Torres-Gaviria Nathalie , Zúñiga-Prado Janneth Rocio
Published: May 2021

Introducción: El oído medio y el oído interno presentan una compleja constitución anatómica; La disección como método de enseñanza proporciona una comprensión óptima de la configuración tridimensional de sus estructuras debido a su carácter práctico y realista. Se propone un protocolo de disección aislada del oído medio e interno que ofrece una visión amplia de sus estructuras e incorpora esquemas didácticos.  Material y Método: En tres cadáveres humanos en estado de conservación se delimitaron dos cuadrángulos en la cara superior del hueso temporal mediante referentes anatómicos para extraer una estructura paralelepípeda correspondiente a la porción petrosa del hueso temporal, sobre la cual se realizó disección.  Resultados: Se creó un protocolo de disección siguiendo esta secuencia: Extracción parcial de la porción petrosa del hueso temporal, visualización del oído medio, exposición de la membrana timpánica y visualización del oído interno.   Conclusión: Esta  herramienta pedagógica es aplicable al proceso de enseñanza y constituye un recurso cuyo carácter didáctico resulta potencialmente útil para los estudiantes facilitando el aprendizaje activo de los aspectos teóricos y prácticos del oído.
Hacia una lucha política positiva. Política desde la condición precaria
Authors: Arango-Tobón Mauricio , Bedoya-Hernández Mauricio
Published: May 2021

El objetivo del artículo es reflexionar acerca de las condiciones que harían posible pensar la precariedad del vivir como forma de contraconducta y de repolitización de la vida en el neoliberalismo. La metodología adoptada fue de carácter documental. Los resultados: (1) el neoliberalismo rompe la política al exaltar la figura del sujeto como empresario de sí mismo; (2) es necesario comprender lo precario en sus tres dimensiones: la precariedad, la condición precaria y la precarización como estrategia de gobierno y (3) lo precario aparece como punto afirmativo para la repolitización de la vida. Conclusiones: proponemos la noción de política desde la condición precaria, la cual requiere de tres movimientos y conlleva cinco tareas específicas de parte de los individuos que se comprometen con ella.
Crimen organizado (narcotráfico) y conservación ambiental: el tema pendiente de la seguridad pública en México
Authors: Carpio-Domínguez José Luis
Published: April 2021

This study explores the incursion of criminal groups dedicated to drug trafficking in Natural Protected Areas (NPAs) of Mexico. Focusing on the social, economic, and environmental impact of the incidence of these groups in the NPAs conservation efforts, our approach allows the inclusion of the environmental dimension of sustainable development in the paradigm of public security. Methodologically, semi-structured interviews were conducted with public servants of the NPAs at the national level, examining the war against drug trafficking period in a diachronic manner. The results of our research show that NPAs have always been part of the drug trafficking scene, as territories of cultivation and mobilization of drugs and as strategic control areas, placing the environment and people of the NPAs in situations of insecurity.
Characterisation of Tailings from Itakpe Iron Ore Mine, Itakpe, Nigeria
Authors: Adebimpe R.A. , Fatoye A.O.
Published: April 2021

Knowledge of tailings characteristics is required for utilisation and management purposes in the mining and construction industry. Tailings from the mine waste dumps at Itakpe iron ore mine were collected and analysed in the laboratory to determine their chemical and physical characteristics and these include; permeability, porosity, specific gravity, particle size distribution, chemical composition and bioavailability factor of element. Geochemical speciation with quantitative X-ray powder diffraction was used to evaluate the chemical and mineral composition of Itakpe iron ore tailings. The aim is to offer base line data necessary to assess metal mobility and bioavailability. The distribution of heavy metals such as Cu, Ni, Cd, Cr, Zn and Fe was determined using multi- step sequential extraction. The results obtained indicate that the permeability is 6.24 x 10-3 cm/sec; porosity is 35%; and specific gravity is 3.58. The tailings is well graded and is sand gravel. Nickel and Zinc was found to be considerably high in exchangeable and bound to carbonates fraction which are mobile region and is bound to Fe – Mn oxides which is slightly mobile region but the higher concentration of Ni found in residual fraction. The implication of this result is that Nickel and Zinc partially enter into the food chain. Chromium and Cadmium concentration result indicated that these metals can easily enter into the food chain because of their presence in the mobile region and their higher mobility percentage.
Effect of Oil Content on the Printability of Coconut Cream
Authors: Lee Cheng Pau , Hoo Jon Yi , Hashimoto Michinao
Published: April 2021

We developed a method to perform direct ink writing (DIW) three-dimensional (3D) printing of coconut-based products with high oil content by varying compositions of the coconut oil and the coconut cream. The addition of oils is particularly crucial in providing energy, developing neurological functions, and improving the palatability of food. Despite the potential merits of high oil-content foods, there have been limited studies on 3D printing of high oil-content foods. In particular, the effect of oil content on the printability of food inks has not been studied to date. 3D printing of food inks with high oil contents is challenging due to oil separation that leads to unpredictable changes in rheological properties. In this work, we surveyed the behavior of the mixture of the coconut oil and the coconut cream and identified the appropriate conditions for the food inks that show the printability in DIW 3D printing. We initially formulated coconut cream inks added with coconut oil that did not exhibit oil separation, and characterized the rheological properties of such inks. We successfully 3D-printed coconut cream with additional coconut oil and successfully fabricated 3D structures with inks containing 25% water with an additional 10% (w/w) of coconut oil. Texture profile analysis (TPA) suggested that the hardness index and the chewiness index of mesh-shaped 3D-printed coconut cream decreased due to an increase in the water content of the ink. Overall, this study offered an understanding of the stability of the food inks and demonstrated the fabrication of 3D colloidal food with controlled oil content, which can be applied to formulating foods with tunable oil content to cater to individual nutritional needs without compromising the stability of the inks.
DÖRDÜNCÜ SINIF SOSYAL BİLGİLER DERSİ BİLİM TEKNOLOJİ VE TOPLUM ÖĞRENME ALANI “İYİ Kİ VAR” ÜNİTESİ KAZANIMLARININ GERÇEKLEŞME DÜZEYİNİN İNCELENMESİ
Authors: Akgün İsmail Hakan , Boztopraklı Ayşe
Published: May 2021

Bu çalışmanın amacı 4. sınıf Sosyal Bilgiler dersi “Bilim, Teknoloji ve Toplum” öğrenme alanında yer alan “İyi ki Var” ünitesi kazanımlarının öğrencilerde gerçekleşme düzeyini çeşitli değişkenler bağlamında tespit etmektir. Bu amaca yönelik olarak çalışma nicel araştırma yöntemlerinden tarama modelinde yapılmıştır. Çalışmada veri toplama aracı olarak araştırmacı tarafından geliştirilen akademik başarı testi kullanılmış olup elde edilen verilerden öğrencilerde ilgili ünitenin kazanımlarının gerçekleşme düzeyi; cinsiyet, ebeveyn eğitim düzeyi, yerleşim yeri ve aile gelir düzeyi değişkenleri bağlamında incelenmiştir. Araştırma sonucunda “İyi ki Var” ünitesi kazanımları ile ilgili öğrencilerin akademik ortalamalarının genel olarak orta seviyede olduğu tespit edilmiştir. Cinsiyet değişkenin akademik ortalamaya istatistiksel olarak anlamlı düzeyde etki etmediği görülmüştür. Ayrıca ebeveyn eğitim düzeyi üniversite olan öğrencilerin diğer gruplara göre, yerleşim yeri şehir olan öğrencilerin köyde yaşayanlara göre ve 2500 TL ve üstü geliri olan öğrencilerin daha düşük gelirli olan öğrencilere göre istatistiksel olarak anlamlı düzeyde daha başarı oldukları tespit edilmiştir.
Mali Yorgunluk: Türkiye İçin Bir Uygulama
Authors: AKBAYIR Fatih
Published: April 2021

Bu çalışmanın amacı, mali reaksiyon fonksiyonundan yola çıkılarak Türkiye’de mali yorgunluk davranışının ortaya çıktığı borç yükü seviyesinin belirlenmesidir. Buna göre öncelikle Sıradan En Küçük Kareler Yöntemi aracılığıyla 1986-2019 dönemi yıllık verileri ile mali reaksiyon fonksiyonu hesaplanmıştır. Sonrasında son on yılın verilerinden faydalanarak faiz-büyüme diferansiyeli hesaplanmıştır. Her iki adımdan elde edilen değerlerin standart bütçe kısıdından türetilen bir takım eşitlikler aracılığıyla bir araya getirilmesi sonucunda ise mali yorgunluk davranışının ortaya çıktığı borç yükü seviyesi belirlenmiştir. Buna göre Türkiye’de mali yorgunluk davranışının, kamu borç yükünün yaklaşık olarak %44’e ulaşması durumunda ortaya çıktığı görülmektedir. Nihayetinde Türkiye’de ekonominin kırılgan yapısını ortadan kaldıracak ya da bu kırılganlığı azaltacak yapısal reformların gerçekleştirilmesinin elzem olduğu sonucuna ulaşılmıştır.
Rupturing the Silences: Intergenerational Construction of Salvadoran Immigrant War Necronarratives
Authors: Trujillo Ester N.
Published: May 2021

As the children of wartime immigrants from El Salvador become adults, they must grapple with the role violence played—and continues to play—in Salvadoran society. Second-generation Salvadorans interpret their relatives’ stories of war, death, and violence through a lens that prioritizes lessons gained over traumatization. Thus, immigrant parents’ casual discussions about their experiences during the Salvadoran Civil War (1979–1992) become what this article calls necronarratives: stories pieced together from memories based on foiling death and violence generated through state necropolitics. Youth interpret inherited memories through a lens of survival, resilience, and healing. Necropolitics refers to the ability of the state to legislate and draw policies that determine who lives and who dies. Although scholars have noted that high levels of war-related trauma among Salvadoran immigrants cause them to remain silent about those experiences, my research reveals that children of these immigrants collect and construct narratives using the memory fragments shared during casual conversations with their relatives. Drawing from 20 semi-structured interviews with U.S. Salvadorans, this paper shows that U.S. Salvadorans construct narratives out of their family’s war memories in order to locate affirming qualities of the Salvadoran experience such as surviving a war, achieving migration, and building a life in a new country. Contrary to past indications that Central American migrants live in silence about their national origins in order to avoid discrimination in the U.S. and to avoid traumatizing their children, this study on second-generation Salvadoran adults describes the ethnic roots information families do share through war stories. The Salvadoran case shows youth actively engage with necronarratives as they come of age to adulthood to yield lessons about how their national origins and ethnic heritages shape their senses of belonging and exclusion within U.S. society.
EFFECT OF ALIGNED MAGNETIC FIELD AND INCLINED OUTER VELOCITY IN CASSON FLUID FLOW OVER A STRETCHING SHEET WITH HEAT SOURCE
Authors: DEVİ Renu , POPLY Vikas , MALA Mani
Published: April 2021

The purpose of this study was to assess the effect of the inclined outer velocity on heat and flow transportation in boundary layer Casson fluid over a stretching sheet. The flow is adopted to have non-orthogonal magnetic field with heat generation in the uniform manner on stretching surface. It has been taken that in both the directions along the x-axis, the sheet is stretched. By applying similarity transformations, the governing equations representing the heat and flow transportation are converted to ordinary differential equations. Runge-Kutta Fehlberg approach was adopted to solve numerically the moulded differential equations with the help of shooting technique. The flow is also governed by the heat source parameter, Casson fluid parameter, magnetic parameter, Prandtl number, aligned angle of magnetic field and the impinging angle parameter. The results revealed that velocity decreases with an increase in Casson fluid parameter, magnetic parameter and aligned angle of magnetic field for the case of outer velocity parameter less than one while velocity increases for the case of outer velocity parameter greater than one because of the inverted boundary layer formation for velocity profile in second case. Also, the fluid temperature increases (for the case of outer velocity parameter less than one) and temperature decreases (for the case of outer velocity parameter greater than one) with an increase in Casson fluid parameter, impinging angle parameter and aligned angle parameter. The results indicate that outer velocity and aligned magnetic field has a significant impact on fluid temperature and velocity. The behaviour of emerging fluid parameters on fluid temperature and velocity are depicted graphically and their effect on local Nusselt number (〖Nu〗_x ) and skin friction coefficient (C_f ) are represented by tables. The finding of this study may serve as to control the rate of heat transportation and fluid velocity in many manufacturing processes and industrial applications to make the desired quality of final product. Acceptance of the extant technique used in current study is correlated with the existing outcomes in the literature.
Studi Perilaku Investor dan Myopic Loss Aversian
Authors: Septiani Rizki , Maharani Satia Nur , Ermayda Ria Zulkha
Published: May 2021

An experienced investor's mindset tends to be different from that of a novice investor who has certain considerations heavily influenced by feelings and emotions. This mindset has unwittingly led to behavioral bias. One behavioral bias that often arises without being realized by investors, especially novice investors, is Myopic Loss Aversion (MLA). This study aimed to confirm the existence of Myopic Loss Aversion (MLA) behavioral bias and to analyze Myopic Loss Aversion (MLA) behavior bias inactive investors in Malang as well as the factors causing the emergence of Myopic Loss Aversion (MLA) behavior bias. This research was qualitative case study research. Primary data was obtained through in-depth interviews with selected informants. The results found that Myopic Loss Aversion arises in investors who conduct portfolio evaluations more frequently by monitoring fluctuating stock chart movements that seem to fear that their portfolio would suffer losses. Furthermore, another discovery was about how investors who had experienced Myopic Loss Aversion bias could overcome past mistakes in the investment decision-making process.Keywords:  Financial Behavior, Investors, Investment Decision Making AbstrakPola pikir investor yang sudah berpengalaman bisa berbeda dengan investor pemula yang cenderung masih memiliki pertimbangan tertentu yang banyak dipengaruhi oleh perasaan dan emosi. Pola pikir ini tanpa disadari telah memunculkan bias keperilakuan. Salah satu bias keperilakuan yang sering muncul tanpa disadari oleh investor terutama investor pemula yaitu Myopic Loss Aversian (MLA). Penelitian ini bertujuan untuk mengkonfirmasi eksistensi dari bias keperilakuan Myopic Loss Aversian (MLA) dan menganalisis bias perilaku Myopic Loss Aversian (MLA) pada investor aktif di Malang serta faktor penyebab munculnya bias perilaku Myopic Loss Aversian (MLA). Penelitian ini merupakan penelitian kualitatif studi kasus. Data primer dilakukan melalui wawancara mendalam terhadap informan terpilih. Hasil penelitian ini ditemukan bahwa Myopic Loss Aversian muncul pada investor yang melakukan evaluasi portofolio secara lebih frekuen melaui pemantauan pergerakan grafik harga saham fluktuatif yang seakan-akan takut portofolionya mengalami kerugian. Lebih lanjut, juga ditemukan tentang bagaimana para investor yang pernah mengalami bias Myopic Loss Aversian mengatasi kesalahan-kesalahan dimasa lalu dalam proses pengambilan keputusan investasi.Kata Kunci:  Perilaku Keuangan, Investor, Pengambilan Keputusan Investasi
Contribución científica y académica de estudios sobre sexualidad juvenil realizados en una facultad de enfermería de Colombia
Authors: Vanegas de Ahogado Blanca Cecilia , Pabón Gamboa Marcela , Plata de Silva Rita Cecilia
Published: May 2021

Introducción: el objetivo de esta investigación fue describir la contribución científica y académica de los estudios en torno a la sexualidad juvenil realizados entre los años 2014 y 2018 en una facultad de enfermería de Colombia. Metodología: Se realizó un estudio de revisión documental, a través del cual se seleccionaron y analizaron 14 productos derivados de investigación docente y de estudiantes que cursaron un posgrado. El análisis se realizó mediante una evaluación crítica y analítica de los resultados reportados en los estudios seleccionados, lo que permitió presentar el estado actual de desarrollo del conocimiento, sus tendencias y avances con una visión global y contextualizada. Resultados: los estudios revisados tienden a profundizar en componentes psicosociales de la sexualidad juvenil con visión holística, lo que explica el predominio de enfoques cualitativos, que, a su vez, son coherentes con la educación y la formación en enfermería y psicología, profesiones que han liderado dichas investigaciones. Conclusiones: en los estudiosrevisados, predomina el tema del embarazo adolescente desde diferentes perspectivas. Esta prelación es explicable por tratarse de una de las problemáticas más frecuentes en este grupo poblacional y con mayores consecuencias psicosociales ya que suele alterar su calidad de vida presente y futura. Con menor frecuencia, se estudian otros aspectos de la sexualidad juvenil y se inician acercamientos a la educación virtual para la prevención y el manejo de las situaciones que más afectan la sexualidad en esta etapa.
A nonparametric algorithm for automatic classification of large multivariate statistical data sets and its application
Authors:   Siberian Federal University, Zenkov I.V. ,   Krasnoyarsk Branch of the Federal Research Center for Information and Computational Technologies, Lapko A.V. ,   Institute of Computational Modelling SB RAS,   Reshetnev Siberian State University of Science and Technology, Lapko V.A. ,   Institute of Computational Modelling SB RAS,   Reshetnev Siberian State University of Science and Technology, Im S.T. ,   Siberian Federal University,   Sukachev Institute of Forest SB RAS,   Reshetnev Siberian State University of Science and Technology, Tuboltsev V.P. ,   Reshetnev Siberian State University of Science and Technology, Аvdeenok V.L. ,   Reshetnev Siberian State University of Science and Technology
Published: April 2021

A nonparametric algorithm for automatic classification of large statistical data sets is proposed. The algorithm is based on a procedure for optimal discretization of the range of values of a random variable. A class is a compact group of observations of a random variable corresponding to a unimodal fragment of the probability density. The considered algorithm of automatic classification is based on the «compression» of the initial information based on the decomposition of a multidimensional space of attributes. As a result, a large statistical sample is transformed into a data array composed of the centers of multidimensional sampling intervals and the corresponding frequencies of random variables. To substantiate the optimal discretization procedure, we use the results of a study of the asymptotic properties of a kernel-type regression estimate of the probability density. An optimal number of sampling intervals for the range of values of one- and two-dimensional random variables is determined from the condition of the minimum root-mean square deviation of the regression probability density estimate. The results obtained are generalized to the discretization of the range of values of a multidimensional random variable. The optimal discretization formula contains a component that is characterized by a nonlinear functional of the probability density. An analytical dependence of the detected component on the antikurtosis coefficient of a one-dimensional random variable is established. For independent components of a multidimensional random variable, a methodology is developed for calculating estimates of the optimal number of sampling intervals for random variables and their lengths. On this basis, a nonparametric algorithm for the automatic classification is developed. It is based on a sequential procedure for checking the proximity of the centers of multidimensional sampling intervals and relationships between frequencies of the membership of the random variables from the original sample of these intervals. To further increase the computational efficiency of the proposed automatic classification algorithm, a multithreaded method of its software implementation is used. The practical significance of the developed algorithms is confirmed by the results of their application in processing remote sensing data.
Desnaturalizando o Direito Social à moradia no Brasil: ocupações urbanas como estratégia de assistência ao social
Authors: Ecker Daniel Dall'Igna
Published: May 2021

Este ensaio teórico, de inspiração pós-estruturalista, tem como objetivo desnaturalizar discursos relacionados ao Direito Social à moradia no Brasil, situando, na análise, as ocupações urbanas como estratégia de assistência ao social. Fundamentado no estudo de documentos, que orientam e regulamentam o Direito Social à moradia no país, articulado com autores e autoras que discorrem sobre o tema, mapeia alguns dos discursos que envolvem as políticas urbanas no Brasil. A partir disso, infere que as ocupações urbanas contribuem para a operacionalização das políticas urbanas de garantia do Direito Social à moradia no país, ao organizarem, gerirem e articularem estratégias práticas e subjetivas de assistência ao social. Essas estratégias se assemelham aos valores da Política Nacional de Assistência Social (PNAS) pelo modo como as ocupações atuam.
A Sea Turtle Population Assessment for Florida's Big Bend, Northeastern Gulf of Mexico
Authors: Chabot Ryan , Welsh Ryan , Mott Cody , Guertin Jeffrey , Shamblin Brian , Witherington Blair
Published: April 2021

Coastal waters of Florida’s Big Bend, Gulf of Mexico (GOM) once supported one of the largest sea turtle fisheries in the United States. To fill an information gap in this region on abundance and distribution of sea turtles, we used vessel—based distance sampling and active capture methods to characterize current foraging aggregations near the St. Martins Marsh Aquatic Preserve. Over 10 sampling periods between 2012—2018, we completed 513 km of transects and recorded 819 turtles among 4 species—green turtle (Chelonia mydas, n = 624), Kemp’s ridley (Lepidochelys kempii, n = 147), loggerhead (Caretta caretta, n = 47), and a single hawksbill (Eretmochelys imbricata). Turtle densities in 4 study plots within the 200 km2 study site ranged from 57—221 immature green turtles/km2, 16—56 immature Kemp’s ridleys/km2, and 1—14 juvenile—to—adult loggerheads/km2. Of 200 green turtles captured, 67.5% showed skin tumors consistent with fibropapillomatosis, a frequency similar to that from urbanized estuaries of Florida’s east coast. The largest green turtles (> 60 cm straight standard carapace length), abundant in the southern portion of our study area, are of note because this size class is uncommonly recorded within US territorial waters. Analyses of green turtle mtDNA haplotypes found contributions from rookeries in the western GOM, Mexican Caribbean, and Costa Rica. Although Big Bend protected areas were principally designed to conserve marine and coastal habitats, these regulatory zones have also effectively encompassed a hotspot for foraging sea turtles.
Preparing future teachers to use digital educational resources in primary school
Authors: Aidarbekova Kulzhan A. , Abildina Saltanat K. , Odintsova Svetlana A. , Mukhametzhanova Aigul O. , Toibazarova Nagimash A.
Published: May 2021

The use of digital educational resources is based on ensuring that control measures are fixed and that the educational process as a whole is more transparent. The purpose of this article is to research the use of digital educational resources in primary school. The methodological basis of the study is determined by the possibility of using the design method. The novelty of the study is determined by the fact that the digital educational environment is understood primarily as the function of knowledge transfer and the desire to combine conventional teaching methods with innovative principles. It was concluded that the digital environment should be designed and taught to future teachers not only as an applied subject but also as an infrastructural component. By comparing the experimental and control groups, the authors empirically confirmed that pedagogical influence using web-based technologies is more effective than previously used ones.

 

Keywords: blended learning; education; conventional teaching; technologies; web resources.
Specific features of value orientations among the student youth in the context of digital transformation of the education system
Authors: Khammatova Rina S. , Gribkova Olga V. , Tkhugo Muliat M. , Ushakova Olga B. , Shchetinina Nina N. , Krasheninnikova Ekaterina I. , Erofeeva Maria A.
Published: May 2021

The importance of the paper is determined by the fact that the development of digital technologies is currently one of the main priorities of any country, both at the highest political level and at the federal and regional ones. The introduction of digital initiatives into the education system leads to their reforming, which has a direct influence on all subjects of the educational process. The goal of the study was to investigate the characteristics of the value orientations of student youth in the context of the digital transformation of the higher education institution. The research methods comprised theoretical and methodological analyses of the problem, empirical research methods (testing, interviewing and a survey), an educational experiment and methods of mathematical statistics. The results of the study include a description of the value framework structure of the personality of student youth (values and meanings) in the era of digital transformation. In addition, as a result of the study, the authors of the paper designed and tested a programme of additional education for students, aimed at developing the value orientations of the ‘digital personality’. The materials of the paper can be useful for the introduction into the educational process in the system of higher and secondary vocational education.
 
Keywords: Value orientations, student youth, global risks and challenges, information and educational environment of a higher education institution, digital transformation of society.
Performance of perisel as shelter and periphyton substrate in the floating cage of Pacific white shrimp culture
Authors: Palinggi Rifka Liling , Budiardi Tatag , Djokosetiyanto Daniel
Published: May 2021

Shrimp culture in the floating cage is expected to reduce the utilization of land and its possible negative impact to the environment. The advantages of shrimp farming in the sea include the high dissolved oxygen concentration and the better meat quality. This research aimed to enhance the production performance of shrimp through the utilization of periphyton as a natural feed for shrimp. A completely randomized design with 3 treatments (in triplicates) were applied in this experiment, i.e floating cage without perishel (control), floating cage with PE perishel and PA perishel. Shrimp with body weight of 2.5 ± 0.2 g were stocked at the initial density of 2,000 shrimp in each cage, and maintained for 90 days. No significant difference was observed in the survival amongst treatments. The lowest feed conversion ratio (1.74) and coefficient of variance (3.21) were showed in treatment PA. The highest attachment and abundances of periphyton were found in treatment PA. It was concluded that the addition of perishel inside the floating cage may contribute as natural feed source for the shrimp and thus increase the production performance of shrimp.
Keywords: floating cage, Litopenaeus vannamei, periphyton, perisel, shelter
ABSTRAK
Budidaya udang di KJA diharapkan dapat menekan isu pemanfaatan daratan sebagai tambak yang berdampak pada permasalahan lingkungan. Keunggulan laut untuk budidaya udang, antara lain adalah kadar oksigen terlarut relatif tinggi sehingga tidak perlu kincir, dan mutu daging udang yang dihasilkan relatif lebih baik. Penelitian ini ditujukan untuk meningkatkan kinerja produksi dan memanfaatkan kesuburan perairan laut berupa perifiton sebagai pakan alami bagi udang. Penelitian ini terdiri atas tiga perlakuan, yakni: (A) kontrol (tanpa perishel), (B) jaring benang nilon (PE), dan (C) jaring benang serabut pendek (PA 6.6), masing-masing perlakuan terdiri dari tiga ulangan. Udang dengan bobot 2,5 ± 0,2 g ditebar sebanyak 2.000 ekor perwadah, dan dipelihara selama 90 hari. Hasil analisis kinerja produksi menunjukkan bahwa kelangsungan hidup tidak berbeda nyata antarperlakuan. Nilai konversi pakan terendah diperoleh pada perlakuan jaring benang PA dengan nilai 1,74. Nilai koefisien keragaman terendah diperoleh pada perlakuan jaring benang PA dengan nilai 3,21. Penempelan dan kepadatan perifiton yang cukup baik diperoleh pada jenis perishel jaring benang serabut pendek PA. Dengan demikian dapat disimpulkan bahwa dengan penambahan perishel sebagai shelter dan penumbuh perifiton diperoleh hasil produksi yang baik. Udang dapat memanfaatkan keberadaan perishel dalam wadah pemeliharaan sebagai tempat berlindung dan memperoleh makanan tambahan berupa pakan alami yang menempel pada perishel.
Kata kunci: karamba jaring apung, perifiton, perisel, selter, udang vaname
Depression-anxiety and coping strategies of adolescents during the Covid-19 pandemic
Authors: TURK Fulya , KUL Aykut , KILINÇ Erdal
Published: April 2021

The aim of the present study was to examine the levels of anxiety, depression and coping of adolescents during the Covid-19 pandemic. The study was carried out with 3058 students (2080 females, 978 males) who are continuing their secondary and high school educations at Şahinbey District of Gaziantep. Personal Information Form, The Revised Child Anxiety and Depression Scale – Child Version and Coping Scale for Children and Adolescents were used for data collection. Independent Samples t-Test and One-Way ANOVA were used for data analysis. Based on the results of the study; the ratios of adolescents with high depression, anxiety as well as depression and anxiety were 45.6%, 48.6% and 47.12% respectively in the present study. It was determined that women, adolescents at high school, those with parents having low education level, individuals with separated parents, those with increased social media use and adolescents with number of siblings greater than three have higher anxiety and depression levels. Adolescents with high levels of depression and anxiety were found to use more avoidant and negative coping strategies. It can be stated that the prevalence of mental health problems of adolescents during the epidemic process is high and that studies in the field of mental health of adolescents are needed.
Teachers in COVID-19 period: Psychological effects, practices and career needs
Authors: EŞİCİ Hasan , AYAZ Ahmet , YETİM Defne , ÇAĞLAR Sümeyye , BEDİR Nurşen
Published: April 2021

The purpose of the current study was to examine teachers’ career needs and psychosocial experience during the COVID-19 pandemic within the phenomenological pattern of qualitative research methods. The data collection process included individual interviews and an online survey form. As a result of the research, four main themes were obtained. The first of these themes concerned the effects of the COVID-19 process on teachers. These effects were divided into both positive and negative effects. The second main theme focused on the needs of teachers. In this process, teachers felt the need for psychological support, in-service training and support for infrastructure. The third main theme was the professional life of teachers and school counselors. In this process, teachers and school counselors continued their education, teaching and support processes by adapting them to the online environment. The last main theme was the problems experienced in this process and the proposed solutions. Participants highlighted problems in this period, particularly the access of students to education. Recommendations were made as part of the research results to strengthen the educational training activities offered by teachers in the COVID-19 period.
Verde que vira marrom, reputação que vira lama: extrativismo mineral, desastres e as imagens do “invisível”
Authors: Scotto Maria Gabriela
Published: April 2021

Mining corporations invest significant financial and human resources in advertising and marketing campaigns on television, in the written press and on social media. By doing this, they not only propagate their "good" social and environmental actions, but also disseminate the belief in mining as a sustainable and risk-free economic activity. In the article we discuss the political strength presented by the images (photographs, videos, memes, etc.) broadcasted after the disasters caused by the rupture of mining dams, such as those that occurred in Brazil in 2015 and 2019, to soil the reputation of mining corporations such as Vale. To answer these questions, we resort to the concepts of invisibility policies and political potential of catastrophes formulated by Ulrich Beck. We conclude that critical mining groups and movements have a fundamental role in establishing causal links between what happened (the “present” of the images) and the social, economic and political processes (the “past” of the images) that preceded the disasters and explain them.
KARAKTERISTIK KEBIJAKAN POLITIK INDONESIA DALAM PERLINDUNGAN PEKERJA MIGRAN DI LINGKUP ASEAN MELALUI PERSPEKTIF GENDER
Authors: Intan Sari Diah Ayu , Eriyanti Linda Dwi , Sunarko Bagus Sigit
Published: May 2021

The Indonesian government’s effort to protect Indonesian migrant workers abroad began after Indonesia ratify a policy to protect migrant workers as outlined in Law Number 39 of 2004, but the existence of this policy did not necessarily reduce the number of violence against Indonesian migrant workers abroad during the presidency of President Susilo Bambang Yudhoyono. The purpose of this research is to analyze the characteristics of the protection policy for Indonesian migrant workers during the presidency of President Joko Widodo using the concept of Ethics of Care by Carol Gilligan and to analyze the gender character of Indonesia as a sending country in relation to the recipient countries of migrant workers in the protection policy of Indonesian migrant workers within ASEAN through gender perspective. The research uses a qualitative method. The results of this study indicate that the characteristics of Indonesian political policies in the effort to protect Indonesian migrant workers in legal form is quite feminine because there are values ​​of concern and caring for migrant workers in Law number 19 of 2017, but in practice the absence of derivative regulations to realize the mandate of the law causes an old pattern happen in the reality so that the characteristics of migrant worker protection policies that have occurred todays are still masculine. Meanwhile, the gender character of Indonesia as a sending country for migrant workers that is subordinated by the receiving country and does not have the ability to protect its migrant workers shows a feminine gender character of Indonesia because in its interactions with receiving countries in ASEAN, Indonesia is considered weak because it does not have bargaining power in protection efforts to its migrant workers abroad.