bluuebunny/crossref_metadata_2025 huggingface dataset:
Aproximación a una red de conocimiento en seguridad y salud en el trabajo, a través del análisis de redes sociales
Authors: Benavides Piracon John Alexander , Téllez Avila Eliana Milena , Malagón Rojas Jeadran Nevardo , Vargas Angélica María , Rojas Zárate Diana , Hernández Cubillos Guillermo Alejandro , García Castañeda Alexi Geovanny , Piñeros Ángela Susana
Published: October 2019

introducción: En Colombia se han realizado análisis sobre producción científica en salud y seguridad en el trabajo, sin embargo, no se ha indagado por la interacción y cooperación establecida entre investigadores o instituciones en la generación y divulgación de conocimiento en ésta temática. Objetivo: Identificar actores y patrones de interacción entre instituciones en Colombia, alrededor de actividades investigativas en seguridad y salud en el trabajo a través de un análisis de redes sociales. Materiales y métodos: Estudio basado en el análisis de redes sociales, desarrollado en el año de 2017, desde un instrumento diseñado y validado para identificación de actores. Se construyeron representaciones gráficas de la red y se valoraron los atributos por institución, analizando dos índices de interacción: centralidad e intermediación. Resultados: Se identificaron 67 nodos con 110 interacciones, el 9% de las instituciones son gubernamentales y aseguradoras, el 13,4% agremiaciones y el 77,6% instituciones académicas. Por último, se encontró una mayor centralidad e inter-mediación en las instituciones públicas respecto a las privadas. Conclusión: La red de conocimiento en seguridad y salud en el trabajo, está formada predominantemente por instituciones académicas, sin embargo, aparece con alta centralidad e intermediación el Instituto Nacional de Salud, lo que puede obedecer a su papel en el desarrollo y gestión del conocimiento científico en salud en el país.
O corte revolucionário nos media e o “efeito de atraso” nas teorias da comunicação
Authors: Mesquita Mário
Published: October 2019

A autonomização do campo jornalístico em Portugal teve no período de 1974-1975 um marco importante, com a abolição da censura estatal. Interpretam-se as estratégias relativas aos media e ao campo jornalístico na perspetiva das teorias da comunicação e do conceito designado por “efeito de atraso” (Neveu).
A Evolução da Imprensa sobre Cinema em Portugal
Authors: Lourenço Jaime , Centeno Maria João
Published: October 2019

A investigação sobre Jornalismo de Cinema (aqui entendido como um subgénero do Jornalismo Cultural) é praticamente inexistente em Portugal e sendo o cinema uma das manifestações artísticas com maior presença na imprensa portuguesa (de acordo com os dados do projecto de investigação A Cultura na Primeira Página[Baptista, 2014; 2017a; 2017b]), importa aprofundar a investigação sobre este subgénero do Jornalismo Cultural.

Neste sentido, e numa perspectiva histórica, a relação entre o cinema e o jornalismo é quase tão antiga como a própria sétima arte. De acordo com Barroso (2008: p. 23), "desde os primórdios do cinema que se começa gradualmente a impor uma cultura cinematográfica impossível de conceber sem a existência de textos que falam dos filmes e leitores interessados nas fitas". Em Portugal, a primeira publicação dedicada em exclusivo ao cinema surge na década de 1910 e, a partir daí, proliferam as publicações sobre cinema que têm acompanhado a implementação do cinema na vida dos portugueses e a edificação do cinema português. É a partir da segunda metade do séc. XX que se começa a constatar “uma aceleração do gosto cinematográfico” (Barroso, 2008:26) e uma consolidação das publicações sobre cinema em Portugal.

Neste artigo, focamos o nosso olhar nas décadas de 1950 a 1980 e, através da revisão de literatura e análise de conteúdo às principais publicações sobre cinema, procuramos traçar a evolução da imprensa sobre cinema em Portugal atendendo à história do cinema português e ao contexto em que essas publicações surgiram e circularam.
As inundações de Lisboa de 1967 como acontecimento mediático no Rádio Clube Português
Authors: Henriques Cláudia
Published: October 2019

Na noite de 25 de novembro de 1967 uma catástrofe de chuva e lama abate-se inesperadamente sobre Lisboa. Num Estado sem capacidade de reação, nem dispositivos censórios capazes de conter a inevitável torrente de informação sobre um acontecimento desta envergadura, a tragédia revela-se brutal e por demais visível, com números esmagadores, que a Censura tenta, mas não consegue controlar totalmente. Antes das manchetes da manhã seguinte, é através do Rádio Clube Português, numa emissão contínua que contrasta com o silêncio da estação oficial do Estado Novo, que se ouvem as primeiras notícias sobre as inundações. Este artigo aborda a catástrofe de 1967 enquanto acontecimento mediático, recorrendo à análise qualitativa dos sons de arquivo do RCP e a entrevistas a antigos jornalistas da estação. O objeto empírico é enquadrado historicamente e estudado, no âmbito dos estudos dos média, à luz das teorias do acontecimento de autores como Dayan e Katz, Kepplinger e Habermeier, Nora ou Quéré.
Da invisibilidade de Salazar à presencialidade de Caetano
Authors: Cádima Francisco Rui
Published: October 2019

As características pessoais muito diferentes de Salazar e Marcello Caetano ditaram, de alguma forma, modelos e procedimentos diferenciados na abordagem e gestão política e propagandística dos meios de comunicação social por parte de cada um deles, no que se refere ao modo como, em particular, adequaram a televisão pública portuguesa aos objetivos políticos específicos dos seus consulados. Mas estabelecida essa diferença, resta a identificação de uma tendência de fundo, de um modelo comunicacional do regime Salazar-Caetanista, comum a ambos ao longo da ditadura, que se pautou genericamente por uma regular subexposição, censura e perseguição das vozes dissonantes e por uma estratégia global assente numa gestão do desvio da atenção social e política em favor do princípio equívoco do não direito à imagem de um povo e do não reconhecimento da virtude civil.
Gravação de telefonemas de censores
Authors: Gomes Joaquim Cardoso
Published: October 2019

Descobertas alguns dias após a revolução de 25 de abril na Comissão de Censura do Porto/Exame Prévio, as gravações de telefonemas de censores de imprensa foram dadas a conhecer apenas por um jornal diário, República, que as considerou “preciosas gravações”, um documento único nas ditaduras ibéricas, mas mantiveram-se praticamente desconhecidas até serem colocadas on line em 2017 pelo Arquivo da RTP. Neste artigo analisa-se o conteúdo das gravações, identificando o momento da sua produção, entre fevereiro e abril de 1974, bem como os intervenientes nas comissões de censura em Lisboa e Porto. Acompanhamos os vários momentos do registo sonoro desde a rotina do funcionamento da censura no mês de fevereiro de 1974, ao sobressalto provocado pela Revolução no dia 25 de abril em que a gravação ilustra por forma impressiva as últimas horas de um aparelho da censura velho de quatro décadas.Focando o funcionamento da Comissão de Censura do Porto e o seu pessoal político situa-se a decisão de instalação de gravadores nas comissões do Porto (1970) e Coimbra (1971), na necessidade de controlar a comunicação entre a censura e os jornais, e a comunicação interna entre comissões, nas três cidades em que eram publicados os principais diários do país.O registo magnético surge assim no marcelismo como mecanismo adicional de controlo num momento em que o velho modelo de censura prévia tinha dificuldade em dar resposta aos novos desafios da imprensa. No caso do Porto o posicionamento político dos três jornais históricos face ao regime caracterizou-se, sobretudo no pós-guerra, por um distanciamento que, desde a década de 60 levou a um escrutínio mais rigoroso por parte da censura. São igualmente apreciados os problemas internos da Comissão do Porto, as diferenças de critérios entre as comissões de Lisboa e do Porto e o risco de deslizes na leitura de provas sobretudo em áreas sensíveis para o regime como era a guerra colonial.
Imprensa portuguesa no fim do Estado Novo
Authors: Cavaco Suzana
Published: October 2019

O objetivo deste artigo é compreender os desafios que a imprensa portuguesa enfrentava no fim do Estado Novo, explorando o fator procura. Depois de um enquadramento teórico no âmbito da economia dos media, propõe-se contextualizar o consumo de imprensa, relacionando-o com o atraso económico e social do país face à Europa Ocidental e América do Norte.
From the Editor
Authors: Goss David A.
Published: October 2019

The editor introduces the topics covered in the themed issue and summarizes the history of the development and growth of the schools and colleges of optometry. This editorial includes a list of the 23 extant institutions.
New England College of Optometry At 125
Authors: Edmonds Heather , Garston Matthew
Published: October 2019

The New England College of Optometry in Boston turns 125 years old in 2019. Throughout its existence, the institution has undertaken several initiatives that changed the profession of optometry both in the United States and globally. The most significant of these are detailed in this history.
Percutaneous Coronary Intervention for Interposed Coronary Graft Stenosis after Modified Bentall Procedure in a Teenaged Boy with Takayasu Arteritis
Authors: Ikenaga Hiroki , Kurisu Satoshi , Kihara Yasuki
Published: October 2019

Anastomotic occlusion of an interposed coronary artery graft after a Bentall procedure is rare and catastrophic. It can lead to myocardial infarction or sudden cardiac death. We found several reports of occlusion and stenosis of a coronary-graft anastomosis, but few describe occlusion of the interposed coronary graft itself, as evaluated with use of intracoronary ultrasonography and computed tomography.

We report the case of a 17-year-old boy with Takayasu arteritis who had a myocardial infarction caused by severe ostial stenosis in an interposed left coronary graft. The graft occlusion was confirmed by results of electrocardiography, aortography, and intracoronary ultrasonography. The patient was treated with percutaneous coronary intervention, stenting of the interposed graft, and thrombectomy, but he died of left ventricular dysfunction caused by extensive myocardial infarction. Extrinsic compression may have caused the graft occlusion.

When considering emergency percutaneous coronary intervention to interposed coronary artery grafts, operators need to identify the cause of occlusion and decide on the best approach for each patient. Stenting the graft may provide temporary relief. During a hemodynamic crisis, immediately reperfusing the graft is crucial.
Transcatheter Closure of Ruptured Sinus of Valsalva Aneurysm with Double-Disc Perimembranous VSD Occluder in Man with Mechanical Aortic Valve
Authors: Tang Liang , Zhou Sheng-Hua , Fang Zhen-Fei
Published: October 2019

Sinus of Valsalva aneurysm, a rare cardiac anomaly, can be life-threatening if it ruptures. Transcatheter closure has emerged as an effective alternative to surgical management; however, it has rarely been reported in patients with previous mechanical aortic valve replacements. We describe the case of a 45-year-old man who presented with a ruptured aneurysm of the noncoronary sinus of Valsalva 14 years after the implantation of a mechanical aortic valve. The ruptured aneurysm was closed by transcatheter means with use of a double-disc perimembranous ventricular septal defect occluder. The patient remained asymptomatic one year after the procedure. Our case suggests that transcatheter closure with use of this type of occluder is a viable method for successfully repairing ruptured sinus of Valsalva aneurysms in patients who have mechanical aortic valves.
EndoAnchors Minimize Endoleaks in Chimney-Graft Endovascular Repair of Juxtarenal Abdominal Aortic Aneurysms
Authors: Galiñanes Edgar Luis , Hernandez-Vila Eduardo A. , Krajcer Zvonimir
Published: October 2019

Juxtarenal abdominal aortic aneurysms (AAAs) are difficult to treat because they often have little or no proximal aortic neck. Patients with this complex anatomy are not usually candidates for an endovascular aneurysm repair (EVAR). Chimney-graft EVAR has been introduced, but type Ia endoleak is a typical risk. We have begun using EndoAnchors to determine whether this risk can be reduced.

From July 2013 through July 2014, we used the chimney-graft EVAR technique in 5 patients whose juxtarenal AAAs had a short or no proximal aortic neck. During the procedure, we implanted EndoAnchors as needed. Postprocedurally, at 30 days, and through end of follow-up (duration, 11–18 mo), all patients had patent endografts without type Ia endoleak (our primary endpoint), visceral stent-graft thrombosis, or renal complications. One patient who received 4 chimney grafts had a postprocedural type II endoleak, which was treated with embolization.

We found it feasible to use EndoAnchors with the chimney-graft technique to prevent type Ia endoleaks in the treatment of juxtarenal AAAs. Further studies are needed to validate this adjunctive technique and to determine its durability.
Sinoatrial Arrest Caused by Ticagrelor after Angioplasty in a 62-Year-Old Woman with Acute Coronary Syndrome
Authors: Ye Fan , Silverstein Burton V. , Jansen Michael , Bray Christopher L. , Lee Arthur C.
Published: October 2019

The platelet aggregation inhibitor ticagrelor, a P2Y12 receptor antagonist, is widely used after angioplasty in patients with acute coronary syndrome. Clinical trial data have shown that it is well tolerated by most patients. We present the case of a 62-year-old woman whose ticagrelor-related asymptomatic and persistent sinus pauses after angioplasty resolved when ticagrelor was replaced with prasugrel.
Progress on the Fabrication of Smart Textiles Based on Soft Strain Sensors
Authors: Raji Rafiu King , Miao Xuhong , Wan Ailan , Zhang Shu , Li Yutian , Frimpong Charles
Published: October 2019

The focus of this study is on strain sensing research and applications in smart textiles. Strain sensing is the measurement of fabric deformation by embedding a strain-sensitive material in it and subjecting it to stress. This paper presents an extensive classification of knitted textile strain sensors. Salient knitted strain sensor production parameters, such as conductive yarn choice, fabric structure, fabric structure deformation, and its relationship to strain signal extraction are discussed. The study concludes that producing yarn-based soft strain sensors for smart textile applications is viable. However, sensitive yarns with the right conductivity, count, and structural configuration are often unavailable. Work remains in the areas of efficient fabric deformation, signal extraction methods, development of sensor nodes, and robust experimental testing systems.
Citric Acid Modified Kaolin and Its Application in Polyamide Wet Coating
Authors: Lei Pengfei , Wang Chenglong , Ye Sijia , Li Hongyan , Zheng Jinhuan
Published: October 2019

The ink absorption of polyamide-coated polyamide textile products containing kaolin is poor. Citric acid was used to modify kaolin, and the adsorptive performance of rhodamine B was studied. The modified kaolin with the best adsorptive ability was selected. The results showed that kaolin modified with a 2.0 M citric acid solution was strongly adsorptive. During the interaction between citric acid and kaolin, H+ acts on the surface and interlayer of kaolin, and on Al3+ and Si4+ in the kaolin. This results in an increase in the specific surface area and a smaller particle size. After using modified kaolin in the polyamide wet coating, the ink-absorption of polyamide-coated polyamide fabrics improved and the resulting pH value met Oeko-Tex Standard 100 requirements for textile use.
Defining Filtering Protective Suit Ideality using a Mathematical-Modeling Method
Authors: Rajic Dusan , Karkalic Radovan , Ivankovic Negovan , Otřísal Pavel , Florus Stanislav
Published: October 2019

Real systems approach the ideal by solving technical and physical contradictions. Optimization of system engineering (SE) is achieved when the problem is solved at the level of technical contradiction. When the problem is solved at the level of physical contradiction, the idealization of SE is achieved. Two possible ways of achieving ideality are described in this paper. The expansion process flows at the level of SE (i.e., idealization of another type), and the reduction process flows at the subsystem level (i.e., idealization of the first type). A procedure of mathematical modeling is presented for determining the level of ideality as a criterion for filtering protective suit (FPS) effectiveness, which can be used as a standard for determining the ideality of any SE.
Dyeing Properties of Berberine on Cationic Dyeable Polyester
Authors: Cao Jiliang , Meng Chunli , Zhao Hong
Published: October 2019

The natural cationic colorant berberine was used to dye cationic dyeable polyester (CDP) fibers. Its dyeing properties, namely color strength ( K/ S) of dyed CDP and percent exhaustion ( E%) of berberine, on CDP were explored at various dyeing pH levels, temperatures, time, and concentration of berberine. Furthermore, dyeing kinetic and thermodynamic studies were also carried out to evaluate the adsorption properties and mechanism. It was found that the E% of berberine on CDP fibers and the rate of adsorption increased with increasing dyeing temperature, while the influence of pH was extraordinarily small. In addition, the adsorption isotherm of berberine on CDP fibers was in line with the Langmuir model.
Face2Face: Real-time facial reenactment
Authors: Thies Justus
Published: October 2019

This article summarizes the dissertation “Face2Face: Realtime Facial Reenactment” by Justus Thies (Eurographics Graphics Dissertation Online, 2017). It shows advances in the field of 3D reconstruction of human faces using commodity hardware. Besides the reconstruction of the facial geometry and texture, real-time face tracking is demonstrated. The developed algorithms are based on the principle of analysis-by-synthesis. To apply this principle, a mathematical model that represents a face virtually is defined. Utilizing this model to synthesize facial imagery, the model parameters are adjusted, such that the synthesized image fits the input image as good as possible. Thus, in reverse, this process transfers the input image to a virtual representation of the face. The achieved quality allows many new applications that require a good reconstruction of the face. One of these applications is the so-called “Facial Reenactment”. Our developed methods show that such an application does not need any special hardware. The generated results are nearly photo-realistic videos that show the transfer of the expressions of one person to another person. These techniques can for example be used to bring movie dubbing to a new level. Instead of adapting the audio to the video, which might also include changes of the text, the video can be post-processed to match the mouth movements of the dubber. Since the approaches that are shown in the dissertation run in real-time, one can also think of a live dubber in a video teleconferencing system that simultaneously translates the speech of a person to another language.

The published videos of the projects in this dissertation led to a broad discussion in the media. On the one hand this is due to the fact that our methods are designed such that they run in real-time and on the other hand that we reduced the hardware requirements to a minimum while improving the resulting quality. In fact, after some preprocessing, we are able to edit ordinary videos from the Internet in real-time. Amongst others, we impose a different mimic to faces of prominent persons like former presidents of the United States of America. This led inevitably to a discussion about trustworthiness of video material, especially from unknown source. Most people did not expect that such manipulations are possible, neglecting existing methods that are already able to edit videos (e. g. special effects in movie productions). Thus, besides the advances in real-time face tracking, our projects raised the awareness of video manipulation.
Crystal structure of catena-poly[(μ2-pyrazine-N,N′)-bis(O,O′-di-isopropyldithiophosphato-S,S′)cadmium(II) acetonitrile di-solvate], [C16H32CdN2O4P2S4⋅2(C2H3N)]n
Authors: Tan Yee Seng , Tiekink Edward R.T.
Published: October 2019

C20H38CdN4O4P2S4, triclinic, P1̄ (no. 2), a = 9.6352(2) Å, b = 11.3986(2) Å, c = 14.8017(3) Å, α = 85.713(2)°, β = 89.877(2)°, γ = 86.048(2)°, V = 1617.23(6) Å3, Z = 2, R
gt(F) = 0.0285, wR
ref(F
2) = 0.0829, T = 100 K.
Dynamical magnetoelectric phenomena of skyrmions in multiferroics
Authors: Mochizuki Masahito
Published: October 2019

Magnetic skyrmions, nanoscopic spin vortices carrying a quantized topological number in chiral-lattice magnets, are recently attracting great research interest. Although magnetic skyrmions had been observed only in metallic chiral-lattice magnets such as B20 alloys in the early stage of the research, their realization was discovered in 2012 also in an insulating chiral-lattice magnet

Cu

2

OSeO

3

$\textrm{Cu}_2\textrm{OSeO}_3$

. A characteristic of the insulating skyrmions is that they can host multiferroicity, that is, the noncollinear magnetization alignment of skyrmion induces electric polarizations in insulators with a help of the relativistic spin-orbit interaction. It was experimentally confirmed that the skyrmion phase in

Cu

2

OSeO

3

$\textrm{Cu}_2\textrm{OSeO}_3$

is indeed accompanied by the spin-induced ferroelectricity. The resulting strong magnetoelectric coupling between magnetizations and electric polarizations can provide us with a means to manipulate and activate magnetic skyrmions by application of electric fields. This is in sharp contrast to skyrmions in metallic systems, which are driven through injection of electric currents. The magnetoelectric phenomena specific to the skyrmion-based multiferroics are attracting intensive research interest, and, in particular, those in dynamical regime are widely recognized as an issue of vital importance because their understanding is crucial both for fundamental science and for technical applications. In this article, we review recent studies on multiferroic properties and dynamical magnetoelectric phenomena of magnetic skyrmions in insulating chiral-lattice magnet

Cu

2

OSeO

3

$\textrm{Cu}_2\textrm{OSeO}_3$

. It is argued that the multiferroic skyrmions show unique resonant excitation modes of coupled magnetizations and polarizations, so-called electromagnon excitations, which can be activated both magnetically with a microwave magnetic field and electrically with a microwave electric field. The interference between these two activation processes gives rise to peculiar phenomena in the gigahertz regime. As its representative example, we discuss a recent theoretical prediction of unprecedentedly large nonreciprocal directional dichroism of microwaves in the skyrmion phase of

Cu

2

OSeO

3

$\textrm{Cu}_2\textrm{OSeO}_3$

. This phenomenon can be regarded as a one-way window effect on microwaves, that is, the extent of microwave absorption changes significantly when its incident direction is reversed. This dramatic effect was indeed observed by subsequent experiments. These studies demonstrated that the multiferroic skyrmions can be a promising building block for microwave devices.
Controlling of light with electromagnons
Authors: Szaller D. , Shuvaev A. , Mukhin A. A. , Kuzmenko A. M. , Pimenov A.
Published: October 2019

Magnetoelectric coupling in multiferroic materials opens new routes to control the propagation of light. The new effects arise due to dynamic magnetoelectric susceptibility that cross-couples the electric and magnetic fields of light and modifies the solutions of Maxwell equations in media. In this paper, two major effects will be considered in detail: optical activity and asymmetric propagation. In case of optical activity the polarization plane of the input radiation rotates by an angle proportional to the magnetoelectric susceptibility. The asymmetric propagation is a counter-intuitive phenomenon and it represents different transmission coefficients for forward and backward directions. Both effects are especially strong close to resonance frequencies of electromagnons, i. e. excitations in multiferroic materials that reveal simultaneous electric and magnetic character.
Probing local order in multiferroics by transmission electron microscopy
Authors: Campanini Marco , Erni Rolf , Rossell Marta D.
Published: October 2019

The ongoing trend toward miniaturization has led to an increased interest in the magnetoelectric effect, which could yield entirely new device concepts, such as electric field-controlled magnetic data storage. As a result, much work is being devoted to developing new robust room temperature (RT) multiferroic materials that combine ferromagnetism and ferroelectricity. However, the development of new multiferroic devices has proved unexpectedly challenging. Thus, a better understanding of the properties of multiferroic thin films and the relation with their microstructure is required to help drive multiferroic devices toward technological application. This review covers in a concise manneradvancedanalytical imaging methods based on (scanning) transmission electron microscopy which can potentially be used to characterize complex multiferroic materials. It consists of a first broad introduction to the topic followed by a section describing the so-called phase-contrast methods, which can be used to map the polar and magnetic order in magnetoelectric multiferroics at different spatial length scales down to atomic resolution. Section 3 is devoted to electron nanodiffraction methods. These methods allow measuring local strains, identifying crystal defects and determining crystal structures, and thus offer important possibilities for the detailed structural characterization of multiferroics in the ultrathin regime or inserted in multilayers or superlattice architectures. Thereafter, in Section 4, methods are discussed which allow for analyzing local strain, whereas in Section 5 methods are addressed which allow for measuring local polarization effects on a length scale of individual unit cells. Here, it is shown that the ferroelectric polarization can be indirectly determined from the atomic displacements measured in atomic resolution images. Finally, a brief outlook is given on newly established methods to probe the behavior of ferroelectric and magnetic domains and nanostructures during in situ heating/electrical biasing experiments. These in situ methods are just about at the launch of becoming increasingly popular, particularly in the field of magnetoelectric multiferroics, and shall contribute significantly to understanding the relationship between the domain dynamics of multiferroics and the specific microstructure of the films providing important guidance to design new devices and to predict and mitigate failures.
¿Cuál es el papel de la formación ciudadana en la construcción de los derechos básicos de aprendizaje de las ciencias sociales en Colombia?
Authors: Quiroz Posada Ruth Elena , Bolívar Buriticá Wilson Antonio
Published: October 2019

This paper aims at analyzing the role civic and citizenship education plays in construction of learning basic rights (DBA in Spanish) in social sciences. The theoretical framework and methodology used by the team of Universidad de Antioquia were based on revision of literature, analysis of experiences and validation by focal teams of teachers and experts. This study tries to provide the students with a citizenship education from their self-recognition as actors, able to transform a society that needs political subjects contributing to social issues.
Investigación de acción participativa sobre la relación entre conceptualización y escritura en los grados cuarto y quinto de educación básica primaria
Authors: Herrera Fernández Astrid Carolina , Avella Moreno Eliseo
Published: October 2019

Se presentan el enfoque, el desarrollo, los resultados y las conclusiones de una Investigación de acción participativa -IAP, realizada para aproximarse a una mejor comprensión del fenómeno de conceptualización a través de la escritura, desde la elaboración de mapas conceptuales hasta la escritura de definiciones de conceptos. La IAP se hizo siguiendo un modelo en ciclos de observación, reflexión, planeación y acción, repetidos en espiral ascendente con relación al avance en desarrollos favorables para el logro del objetivo común del grupo de participantes, docentes y estudiantes de los grados cuarto y quinto de educación básica primaria de un colegio en Bogotá. Se demostró que esa práctica de aula contribuyó a una transformación del pensamiento de los estudiantes, a tal punto que los llevó a distanciarse de la simple repetición de saberes para la acumulación de información y a trascender hasta la construcción, laorganización y la expresión de conocimiento a través de la escritura, lo cual es algo poco común en las prácticas didácticas ordinarias en estos grados de educación básica primaria.
Compartiendo el planeta: Homo sapiens sapiens vs. Homo novus
Authors: Rozo Gamboa Andrés Mauricio
Published: October 2019

El presente artículo aborda, de manera preliminar, el problema de pensar cómo la ingeniería genética, desde uno de sus objetivos, el trasformativo, puede llegar a cambiar drásticamente lo que es el homo sapiens sapiens, desde su conceptualización hasta las relaciones ontológicas como la de la dignidad frente al homo novus, desde una evolución dirigida. Para ello, primero se abordará brevemente un horizonte conceptual desde el cual se traza esta idea; luego, se plantea los modos en los cuales se entiende la manipulación genética en el hombre y sus modificaciones constitutivas a través de la pregunta: ¿Cómo la ingeniería genética al crear el homo novus cambia las relaciones humanas? Enseguida, se presentan algunos ejemplos donde se observa cómo la ingeniería genética, a medida que avanza con sus múltiples aplicaciones en el ser humano, debe ser estudiada para establecer algunos criterios de interacción frente a ese homo novus. Finalmente, el artículo cierra considerando que frente a un nuevo ser humano, que modifica radicalmente las relaciones con el homo sapiens sapiens, va emergiendo nuevas responsabilidades que, de suyo, deben ser construidas, de cara al leguaje de los cuerpos diseñados por la ingeniería genética.
Correlación de los modelos pedagógicos y el currículo en el contexto educativo
Authors: Rodríguez Torres Dénix Alberto , Gutiérrez Ojeda Patricia , García Serrano Saúl Ernesto , Martínez Nancy Johana , Rincón Jaimes Eduard Anderson
Published: October 2019

El artículo plantea conocer las diferentes posturas que existen frente a los modelos pedagógicos y su relación con el currículo, partiendo de la orientación del proceso de enseñanza y aprendizaje realizado por los educadores en las instituciones educativas. Los modelos pedagógicos son los lineamientos que orientan al docente y permiten la actuación dentro de la práctica educativa, a partir de un patrón establecido y buscando el fortalecimiento de conocimientos que se sustentan bajo un enfoque específico. La realidad del aula frente a la percepción de una educación de calidad permite reconocer como factor influyente, pero negativo, el bajo nivel en la aplicación del currículo por parte del docente, debido a la falta de información y mínimas competencias sobre las principales estrategias que se requieren para la implementación del modelo pedagógico adoptado por la institución.
La provención del conflicto en la gestión de la convivencia en ambientes escolares
Authors: Carvajal William , Acebedo Manuel J.
Published: October 2019

El presente artículo es el producto de una investigación de tipo cualitativo y de enfoque investigación-acción, cuyo propósito fue establecer una propuesta de gestión de la convivencia desde la provención del conflicto, mediante la articulación de la justicia restaurativa y la mediación escolar en la sección de bachillerato del colegio San Pedro Claver de la ciudad de Bucaramanga; el resultado hallado mediante la aplicación de grupos focales, entrevistas y análisis documental, muestra los factores más comunes que generan conflicto entre los estudiantes, las actitudes de los alumnos que facilitan y dificultan su abordaje, y las estrategias que implementan los profesores en la resolución de estos entre los escolares. Formar en la provención del conflicto restablece las relaciones y crea una cultura de paz que favorece la convivencia.
Comprehensive Scanning Mutagenesis of Human Retrotransposon LINE-1 Identifies Motifs Essential for Function
Authors: Adney Emily M , Ochmann Matthias T , Sil Srinjoy , Truong David M , Mita Paolo , Wang Xuya , Kahler David J , Fenyö David , Holt Liam J , Boeke Jef D
Published: October 2019

Adney et al. describe the complete and comprehensive codon substitution mutagenesis of human retrotransposon LINE-1 using a synthetic DNA approach. This experiment is the first of its kind for any transposon...

Long Interspersed Nuclear Element-1 (LINE-1, L1) is the only autonomous active transposable element in the human genome. The L1-encoded proteins ORF1p and ORF2p enable the element to jump from one locus to another via a “copy-and-paste” mechanism. ORF1p is an RNA-binding protein, and ORF2p has endonuclease and reverse transcriptase activities. The huge number of truncated L1 remnants in the human genome suggests that the host has likely evolved mechanisms to prevent full L1 replication, and thereby decrease the proliferation of active elements and reduce the mutagenic potential of L1. In turn, L1 appears to have a minimized length to increase the probability of successful full-length replication. This streamlining would be expected to lead to high information density. Here, we describe the construction and initial characterization of a library of 538 consecutive trialanine substitutions that scan along ORF1p and ORF2p to identify functionally important regions. In accordance with the streamlining hypothesis, retrotransposition was overall very sensitive to mutations in ORF1p and ORF2p; only 16% of trialanine mutants retained near-wild-type (WT) activity. All ORF1p mutants formed near-WT levels of mRNA transcripts and 75% formed near-WT levels of protein. Two ORF1p mutants presented a unique nucleolar-relocalization phenotype. Regions of ORF2p that are sensitive to mutagenesis but lack phylogenetic conservation were also identified. We provide comprehensive information on the regions most critical to retrotransposition. This resource will guide future studies of intermolecular interactions that form with RNA, proteins, and target DNA throughout the L1 life cycle.
Atuação do Nutricionista no tratamento de paciente com Doença de Alzheimer: relato de caso
Authors: Lima Pereira Mayara Maria , Araujo Marcela Figueiredo da Silveira , Macedo Joyce Lopes , Da Rocha Silva Ferraz Josiane
Published: October 2019

A doença de Alzheimer é a patologia neurodegenerativa mais frequente associada à idade, cujas manifestações cognitivas e neuropsiquiátricas resultam em uma deficiência progressiva e uma eventual incapacitação. O estudo tem por objetivo demonstrar a atuação e a importância do profissional nutricionista, no tratamento à pessoa com doença de Alzheimer. Trata-se de um relato de caso, realizado em um município do estado do Maranhão. Essa pesquisa é uma contribuição para a sociedade, um incentivo para que os profissionais da área procurem abordar ainda mais essa temática, principalmente em função do crescimento da população de idosos. É preciso destacar a importância de ampliar a visão de todo aspecto patológico, assim como, apresentar uma proposta terapêutica.
A Micologia como conteúdo da disciplina de Biologia no Ensino Médio: uma análise dos livros didáticos aprovados no PNLD-2018
Authors: D'Aquino Rosa Marcelo , Amorim de Oliveira Mário Cézar , Alves Gil Duarte Andreza , Muniz Melo Antunes Camila , Braga Souza Daisy , De Abreu Lehrbach Deliane , Rocha de Oliveira e Silva Janina , Pereira Rodrigues Kirchner Jimena , Adriana Campos Gonçalves Keli , Teixeira Pereira Erkmann Lafaiete , Olczyk Luana , Aparecida Willemann Marilete , Alexander Schweitzer Michael , Caroline de Souza Fossa Pamela , Passaglia Paulo , Rocha da Rosa Simone , Ruzza Altenhofen Soliete , Drechsler-Santos Elisandro Ricardo
Published: October 2019

Os fungos são o objeto de estudo de uma ciência conhecida por Micologia e, em virtude de seu papel na história da vida no planeta e de sua importância ecológica e econômica, compõem o saber escolar da disciplina de Biologia no Ensino Médio. Sendo assim, nesse trabalho objetivamos realizar uma análise descritiva dos conteúdos de Micologia presentes nas dez coleções de Biologia aprovadas na edição de 2018 do Programa Nacional do Livro Didático. A análise revelou que, apesar de melhorias em termos conceituais e de abordagem metodológica, as ilustrações presentes nos livros analisados ainda apresentam eventuais erros que podem prejudicar a compreensão do conteúdo. Outro fator potencialmente problemático é a ausência de contextualização com os demais aspectos ecológicos, saúde humana e relações com outros seres vivos, tornando os tópicos sobre Micologia reduzidos a uma abordagem desconexa com a realidade dos estudantes. Assim sendo, concluímos que seja relevante que se continue a investigar a temática da Micologia nos livros didáticos de Biologia.
KELIMPAHAN IKAN KARANG PADA ATRAKTOR CUMI-CUMI BAHAN PIPA PVC
Authors: Sudrajat Danu Sudrajat
Published: October 2019

Atraktor cumi-cumi yang telah memberikan manfaat pada sektor perikanan, akan tetapi perlu dilakukan rekayasa teknologi sehingga memungkinkan manfaat yang diberikan dapat berlangsung lama dan memberikan dampak yang lebih signifikan terhadap sektor perikanan. Tujuan penelitian ini adalah fungsi atraktor cumi-cumi berbahan pipa PVC sebagai artificial reef dan untuk mengetahui kelimpahan ikan karang pada atraktor cumi-cumi. Penelitian ini menggunakan 2 buah tipe atraktor yaitu Tipe 1 (T1) yaitu atraktor pada bagian atas dan sisi kiri dan kanannya diberi penutup jaring waring PE 40%,  dan Tipe 2 (T2) atraktor pada bagian atasnya saja yang diberikan penutup jaring PE 40%. Metode pengumpulan data ikan yang berada pada atraktor cumi-cumi menggunakan metode sensus visual (Visual Census Method) dengan menggunakan Underwater cam “SENU”, yang disimpan dalam Digital Video Recorder (DVR). Hasil di dalam DVR inilah yang selanjutnya akan dilakukan perhitungan jumlah ikan pada atraktor cumi-cumi. Individu yang diamati adalah yang berada di dalam dan di sekitar atraktor cumi-cumi dalam setiap jamnya, dengan jarak terluar yang diamati dari atraktor cumi-cumi sekitar 50 cm. Atraktor pipa VPC dapat menjadi terumbu karang buatan, dan masing-masing Atraktor T1 dan T2 mempunyai nilai indeks keanekaragaman (H') termasuk keanekaragaman tinggi dengan indeks H' 3,2908 dan 3,303, indeks keragaman (E) menunjukan komunitas stabil dengan indeks E 0,7943 dan 0,8029 dan indeks dominasi (C) termasuk dominasi rendah indeks C 0,4028 dan 0,3974.
BBRO Open Day at DISS 2019
Authors: Dewar Alan M.
Published: October 2019

The 4th of July was the date for one of the British Beet Research Organisation's open days, where the latest developments in growing sugar beet were presented to sugar beet growers. The event near Diss in Suffolk was one of two organised by the levy-funded body in July, and remains
one of the last places where growers can receive unbiased but well considered opinions about the various products, methods and strategies for growing this specialized crop. Where there is little public-funded practical applied research done these days, that is a something to be cherished.
Growers had access to experts in most areas of growing the crop, from soil structure, varieties, herbicide options to pest and disease control. Modern technology was represented by the presence of a drone that can be used for a multitude of monitoring and measuring tasks. The newest varieties
were on show in the demonstration plots along with data on their characteristics and yield potential from the several variety trials conducted each year to test their mettle against the standards. Sharing the site with the BBRO team were prominent companies in the UK sugar beet industry, ranging
from seed companies such as KWS, SES VanderHave, Strube and Betaseeds, the seed pelleting company Germains, showing off their latest pelleting procedures, agrochemical companies such as Syngenta, Bayer, Corteva, UPL, and others, all with their newest technologies on show. A Plant Clinic/Virus
control Centre was available for those with problem samples, and all were supported by an excellent catering van. The sugar industry is much less regulated than it used to be, so sugar beet is now in competition with other crops for the farmers' attention. Profitability and ease of growing
are all important considerations when choosing this crop to be part of a rotation. Quota guarantees are no longer a driving force, nor is the price of beet, which is much more subject to world price fluctuations than it was just 10 years ago, after the quota system was dismantled in Europe
in recent years.
Protocol SS7 and the Security of Mobile Networks
Authors: Guzhakovskaya Kristina , Umnitsyn Yuriy
Published: October 2019

The paper considers Global System for Mobile Communications, which plays the important role in contemporary society and carries new forms of dialog in the modern world. It is shown, that GSM-nets play two roles: firstly, they serve as communication tools for people who are in any point of world, and secondly, they can be used as tools for confidential data theft due to the old technology for telephone exchange setting, created as early as in the 1970s.

Attacks using SS7 are often executed by hackers. After all, the attacker does not have to be close to the subscriber, and the attack can be made from anywhere on the planet. Therefore, to calculate the attacker is almost impossible, through this vulnerability can be hacked through almost any phone in the world. It will not be difficult to eavesdrop on conversations, intercept SMS, get access to the mobile Bank, social networks because of the vulnerability in the SS7 telephone infrastructure, through which service commands of cellular networks are transmitted. Due to the fact that the vulnerability with the Protocol SS7 is on the side of the operator, protection from such an attack is impossible. Until mobile operators are able to abandon this technology, this threat in the field of information security will remain relevant.
The Approach to Assessing the System of Protocol Protection of Information and Telecommunication Networks
Authors: Dementyev Vladislav , Lauta Oleg , Baranov Vladimir , Maksimov Aleksandr
Published: October 2019

In modern conditions, the number of impacts directly on the protocols of data exchange and information exchange is increasing. Of particular relevance is the ability of the information and telecommunications network to maintain performance targets at the required level, and its protection system to ensure the necessary effectiveness of counteraction. In this regard, it is of high importance to conduct research in this direction and to develop adequate approaches to the protection and evaluation of their effectiveness. The present article is devoted to this issue, an applies the approach to the evaluation of the developed system of protection against protocol effects on the information and telecommunication networks.

The problem of calculating the criterion of efficiency can be solved by statistical modeling of the system of protocol protection of information and telecommunication networks. The calculated efficiency criterion is used to verify the compliance of the real system with the specified tactical and technical requirements or in the comparative evaluation of projects of different variants of the system of protocol protection of information and telecommunication networks.
Video Capture Systems as a Means of Investigating Information Security Incidents at the Enterprise
Authors: Zhuykov Egor , Maksimova Elena
Published: October 2019

Today’s trend is the growth of information security incidents. Confirmation of this is the data of the company InfoWatch, according to which the number of leaks of confidential information in the first half of 2017 has increased by 10% as compared to the same period of 2016, and equals to 925 cases. However, 53% out of these 925 cases of diversion were sold by company employees, and 1.7% – by potential insiders. In the modern world, an insider is a very common concept. It is applicable in different spheres of economic activity. In a general sense, an insider is a natural or legal person who, due to his or her position, has access to valuable (mainly, of course, from an economic point of view) information.

Valuable information is also called insider information. The article is devoted to the consideration of video capture systems that can help prevent leakage of information from personal computers in the enterprise.

The proposed scheme of expert evaluation of video capture allows you to determine the system based on the selected criteria and specified weight coefficients, and lets the user make the best choice in the decision-making process of a specific problem.
Microwave water content in oil products meter
Authors: Shirokov Igor B , Serdyuk Igor V , Maronchuk Igor I
Published: October 2019

The paper describes the new method for determining the percentage of water in the water-oil mixture and the manufactured flow-based instrument which uses the microwave communication channel for performing the phase shift measurements with simultaneous evaluation of the degree of absorption of the microwave signal in the test mixture. The results of studies on the justification of operating conditions, development and fabrication of the design of the prototype of the measuring chamber of the device are considered. The results of investigations of the water content in water-oil mixtures of various compositions are presented.
Monitoring of the 2014-2018 flare event in blazar 3C454.3
Authors: Volvach Alexandr E , Volvach Larisa N , Larionov Michail G
Published: October 2019

Variations of the 3C454.3 radio source flux on different time scales (from decades to a year) are analyzed according to the data of long-term multi-frequency monitoring. The anomalously prolonged outbreak that occurred in the facility in 2013-2018 is twice as long as the possible orbital period of the rotation of the supermassive black hole (SMBH) companion located in the center of the parent galaxy. The smallscale fluctuations of the radiation flux density accompanying the flare can be a consequence of the inhomogeneities of matter with dimensions of the order of 1015 cm or more in the central SMBH's AD and adjacent areas.
RT-22 CrAO - H2O maser sources patrolling
Authors: Volvach Larisa N , Volvach Alexandr E , Larionov Michail G , Dmitrotsa Andrej I
Published: October 2019

Results of systematic observations of a sample of bright H2O maser sources with fluxes, on average, exceeding 200 Jy in their main spectral feature during April- September 2017 (G25.65+1.05, G25.825-0.178, G27.184-0.082, G34.403+0.233, G35.20-0.74, G43.8-0.13, G107.30+5.64) are presented. These observations were carried out in preparation for Very Long Baseline Interferometry observations with an array including the Crimean Astrophysical Observatory 22-m radio telescope. All these sources display fairly strong variability during the time interval considered, encompassing fluxes from ∼40 to ∼2300 Jy. A flare reaching ∼17 000 Jy was detected at a velocity of 42.8 km/s in G25.65+1.05 on September 7, 2017, which subsequently grew to 60 000 Jy at the end of September 2017. This suggests the presence of compactmaser structures.