bluuebunny/crossref_metadata_2025 huggingface dataset:
THE INFLUENCE OF THE USE OF RECYCLED GYPSUM ON THE PROPERTIES OF GYPSUM PRODUCTS IN LABOR CONDITIONS
Authors: Sekavová Hana , Herrmann Jakub , Prošek Zdeněk , Nyč Miroslav , Karra’a George
Published: March 2020

The article presents the first results from research, which is deal with recycling of plaster boards and use of the resulting material. The research is carried out within the project MPO Trio c. FV30359 “Recyklace sádrokartonových desek a nová materiálová využití s pridanou hodnotou – GIPSRec”. The plasterboards are produced of stucco, which is calcinated of Flue Gas Desulfurization Gypsum (FGD Gypsum). There is possibility to replace a part of this stucco with recycled material. There is opportunity for saving costs for production. The question how this utilization can change the properties of the products is very important and it is necessary to find the possible improvement or deterioration. This is the objective of this research. The effect on properties was monitored on the samples which was prepared of only pure stucco and of stucco with part of recycled material. There was observed water ratio (splash test), setting times, volume changes, flexural strength, compressive strength and elasticity module.
MECHANICAL AND IMAGE ANALYSIS OF ADHESION BETWEEN MINERAL AGGREGATE AND BITUMINOUS BINDER
Authors: Trejbal Jan , Valentová Tereza , Nežerka Václav , Semerák Petr
Published: March 2020

Asphalt mixtures often fail due to poor interaction between mineral aggregate and bituminous binder. Therefore, many efforts are being made on adhesion improvement between the two materials. In this work, paving grade bitumen 50/70 was doped with two types of adhesion promoters. Asphalt mixtures composed of crushed aggregate Brant coated by binder were made and exposed to stripping water. Then, they were subjected to visual and digital image analysis aiming to quantify aggregate residual bitumen-coated areas. Besides, two cylindrical samples of aggregate were bonded together by a thin film of bitumen doped with adhesion promoters. After solidification of binder, force needed for separation of the two parts was measured. It was shown that residual bitumen-coated areas were increased by 20-30% by adding adhesion promoters into binder. Mechanical adhesion of thus modified binder to aggregate was increased by up to twice.
PRE-PROCESSING OF ADDITIVE MANUFACTURING INPUT FILES FOR NUMERICAL SIMULATION
Authors: Voříšek Jan , Patzák Bořek
Published: March 2020

In this contribution, we present the concept of a 3D printer software emulator facilitating the creation of a spatial finite element mesh suitable for the printing process simulation. The concept is based on gradual processing of a native 3D printer input file (in a G-code format). This file contains a complete description of manufacturing process consisting of series of individual commands interpreted by a printer. The effect of each command needs to be precisely evaluated to obtain the position of the printer head and the volume of the deposited material in any given time. The calculation is performed in the same way as in the Marlin printer firmware using the trapezoidal motion curves and a command buffer. To represent a computational model, a discrete voxel model with variable edge length and time discretization is used. The volume of deposited material is calculated for each voxel as a function of time. The resulting model is suitable for numerical analysis of the printing process.
El rostro de los estudiantes de educación en Comillas
Authors: Muñoz San Roque Isabel , Aza Blanc Gonzalo , Amores Hernández Alberto
Published: March 2020

A partir de varias investigaciones realizadas con los estudiantes de los diferentes grados de educación de la Universidad Pontificia Comillas, en este artículo les describimos en cuanto a los valores y motivaciones que tienen al acceder a la universidad y cómo se transforman estos por su paso por el camino universitario. Además, analizamos la percepción y valoración que hacen de diferentes métodos de aprendizaje y de evaluación que utilizan los profesores en estos grados y la presión de carga de trabajo que perciben en estos estudios.
Espacios de creación o «makerespaces» en la formación de profesores del Grado de Educación Infantil y Primaria
Authors: Salas Labayen Rosa
Published: March 2020

En este artículo se muestra la experiencia llevada a cabo en asignaturas de los Grados de Educación Infantil y Educación Primaria en la Universidad Pontificia Comillas, en las cuales los estudiantes aprenden a dar respuesta a retos educativos mediante la fabricación de materiales y recursos de apoyo. La experiencia se completa con el envío de los materiales creados a centros con pocos recursos económicos a través de una experiencia de aprendizaje-servicio.
Educación Jesuita
Authors: Mesa Baquero José Alberto
Published: March 2020

En este artículo se presenta el nuevo documento de la Compañía de Jesús sobre educación: Colegios Jesuitas: Una Tradición Viva en el siglo 21, un ejercicio continuo de discernimiento. Este nuevo documento fue anunciado por el P. General Arturo Sosa SJ, el 5 de noviembre de 2019 y contiene tres partes principales. La primera relaciona el nuevo documento con los documentos fundacionales anteriores; la segunda analiza elementos importantes de la nueva realidad del mundo y la finalmente la tercera presenta 10 identificadores globales de los colegios jesuitas. Una tradición viva busca inspirar un ejercicio permanente de discernimiento que permita a los colegios el poder responder de manera creativa a los nuevos desafíos de nuestros tiempo y así mantener viva la tradición educativa comenzada en el siglo XVI por san Ignacio de Loyola y sus primeros compañeros.
Sichere IT ohne Schwachstellen und Hintertüren
Authors: Weber Arnd , Heiser Gernot , Kuhlmann Dirk , Schallbruch Martin , Chattopadhyay Anupam , Guilley Sylvain , Kasper Michael , Krauß Christoph , Krüger Philipp S. , Reith Steffen , Seifert Jean-Pierre
Published: March 2020

Unsere zunehmende Abhängigkeit von Informationstechnik erhöht kontinuierlich die Safety- und Security-Anforderungen bei deren Einsatz. Ein zentrales Problem hierbei sind Schwachstellen von Hard- und Software. Marktkräfte konnten diese Situation bislang nicht grundsätzlich beheben. Eine Gegenstrategie sollte deshalb folgende Optionen erwägen: (1) private und staatliche Förderung offener und sicherer IT‑Produktion, (2) Verbesserung der souveränen Kontrolle bei der Produktion aller kritischen IT‑Komponenten innerhalb eines Wirtschaftsraumes sowie (3) verbesserte und durchgesetzte Regulierung. Dieser Beitrag analysiert Vor- und Nachteile dieser Optionen. Es wird vorgeschlagen, die Sicherheit der Schlüsselkomponenten einer Lieferkette durch weltweit verteilte, offene und ggf. mathematisch bewiesene Komponenten zu gewährleisten. Der beschriebene Ansatz erlaubt die Nutzung existierender und neuer proprietärer Komponenten.
Esej o aktualność teorii Stuarta Halla w kontekście badań nad blogosferą
Authors: Knast Patrycja Kinga
Published: March 2020

This essay is talking about topicality of Stuart Hall theory. Author of essay is contending that the Coding/encoding theory of Stuart Hall is still useful in works on blogosphere.In essay author explained the Coding/encoding theory and notions of blogosphere. The author is arguing that that using Coding/encoding theory in works about blogosphere. The author is pointing prospective tesis up.
Problem-solving activity including trust and honesty: spotlighting ‘ASD’ students
Authors: Janiec Jerzy
Published: March 2020

How many times dear reader have you found yourself in a quite challenging situation (having an ambitious student, but with depression, social, emotional and interaction deficits, low self-esteem, OCD and everything connected with ASD) when the most crucial was timing (15 weeks and the same amount of subjects to pass by the given learner) and you have been looking for possible solutions without any further favorable outcomes wondering what should be another step of mine as educator in the upcoming end of the school year? This paper is some sort of answer on the given questions providing a far-reaching suggestion, after in-depth reflection and evaluation, for individual creative work in order to understand ASD students. Sometimes we need to give ‘three steps back to move one step forward’. Three steps back is a diligent investigation that consists of four stages, namely stage of novitiate (refocus), stage of puzzles, and stage of fixing the puzzles and stage of creativity. What’s more, we need to reflect on our thoughtfulness by analyzing acronym C.A.M.P.A.I.G.N.E.R. with specific personality traits. Possessing background knowledge about the problem and ourselves we can move forward by implementing creatively possible solutions to our circumstances remembering about being in every situation ourselves.
Aksjologiczny zamęt wyzwaniem dla współczesnego człowieka
Authors: Kmiecikowski Waldemar
Published: March 2020

The article presents the category of axiological confusion understood as an important trait of reality that can be experimentally experienced by a modern man. The man is losing the ability not only to appropriately grasp one’s own human nature and the essence of the moral good, but also the ability of cognitive opening oneself to the intelligibility of being. A modern homo sapiens neutralises the need to seek the truth. After all, the truth ceases to be both a transcendental property of being and a superior value that is the very foundation of a rational discourse on the philosophical imponderabilia.
Effect of Polypropylene Short Fibers on Energy Absorption Capacity and Durability of Concrete
Authors: Eidan Javad , Rasoolan Iraj , Poorveis Davood , Rezaeian Abbas
Published: March 2020

This article presents an experiment-based study on the effect of low contents (1–2 kg/m3) of polypropylene short fibers of 6 and 12-mm length on energy absorption capacity and durability of concrete. The area under the stress–strain curve up to strain at maximum load and the water permeability obtained from stress–strain curves and the water penetration test, respectively, were considered to represent energy absorption capacity and durability of concrete, respectively. The results revealed that the addition of both 6 and 12-mm fibers enhances the behavior of concrete significantly. The mixes containing 2 kg/m3 polypropylene fibers showed the best performance. It was also concluded that 6-mm fibers have a better effect on energy absorption (an increase of 69 %) over 12-mm fibers, which showed a better effect on water permeability (a decrease of 53 %). Scanning electron microscope analysis was used to determine the failure mode of fibers and also verify well distribution of fibers in concrete.
Mooney Viscosity Measurements in Determining Processibility of Technically Classified Rubbers
Authors: Taylor Rolla H. , Veith Alan G.
Published: March 2020

Mooney viscosity measurements have been found helpful in estimating the processing characteristics of rubbers. They must be supplemented by other types of tests, however, before a comprehensive measure of processibility can be obtained.
Some Aspects of the Testing of Crude Rubber and Crude Rubber Compounds
Authors: Cooper L. V. , Kersker T. M.
Published: March 2020

The first part of this paper reviews some of the factors that are important in order to obtain uniformly high tensile values in high-gum vulcanizates. The second part describes the Firestone weathering apparatus, an instrument designed for evaluating the serviceability of rubber compounds exposed to weathering conditions.
Rubber Evaluations With Instron Testing Machine*Contribution No. 193 from the Research Laboratory of the Goodyear Tire and Rubber Co.
Authors: Gehman S. D. , Clifford R. P.
Published: March 2020

Results are presented from an investigation undertaken to explore new opportunities for the evaluation of rubber from stress-strain characteristics obtained with an lnstron testing machine. The resistance strain gage load recording system, and the flexibility of control of the crosshead motions introduce a variety of possibilities not available with the usual pendulum type of rubber tester.

Accurate recording of the load-elongation curves for low elongations is .of particular interest for many technical applications. Reproducible deformation histories can be applied readily to test specimens and the e?ects on load-elongation curves observed. The transient character of the first-stretch load-elongation curve usually used in rubber testing is apparent by comparison with equilibrium curves after repeated cycling. The facility with which such data is obtained makes use of equilibrium curves feasible. Load relaxation at either constant elongation or constant compression may be recorded directly. Creep at constant load can also be determined. The e?ect of rate of longation on the load-elongation curves can be correlated with creep curves. The low load ranges available and the smooth crosshead motion give reproducible recording of load-elongation curves for raw rubber and raw compounds. These results have significance for some phases of processibility. The use of a small ring-shaped test specimen secured with a rotary cutter provides an elegant technique for sampling the tensile properties of the rubber in vulcanized rubber articles. Hysteresis may be evaluated by recording the decay of the vibratory load for the free vertical vibrations of a test specimen and attached mass. Hysteresis determinations can also be made over large ranges of amplitude by recording load-elongation cycles and measuring areas. Compressive as well as tensile loading may be used.

Results from these various procedures are given to illustrate the versatility and flexibility in testing with this equipment. They indicate important fields of usefulness for it in rubber testing other than routine testing for ultimate elongation and tensile strength, for which it is not particularly well adapted.
Somatostatin-Expressing Interneurons in the Auditory Cortex Mediate Sustained Suppression by Spectral Surround
Authors: Lakunina Anna A. , Nardoci Matthew B. , Ahmadian Yashar , Jaramillo Santiago
Published: March 2020

Sensory systems integrate multiple stimulus features to generate coherent percepts. Spectral surround suppression, the phenomenon by which sound-evoked responses of auditory neurons are suppressed by stimuli outside their receptive field, is an example of this integration taking place in the auditory system. While this form of global integration is commonly observed in auditory cortical neurons, and potentially used by the nervous system to separate signals from noise, the mechanisms that underlie this suppression of activity are not well understood. We evaluated the contributions to spectral surround suppression of the two most common inhibitory cell types in the cortex, parvalbumin-expressing (PV+) and somatostatin-expressing (SOM+) interneurons, in mice of both sexes. We found that inactivating SOM+cells, but not PV+ cells, significantly reduces sustained spectral surround suppression in excitatory cells, indicating a dominant causal role for SOM+cells in the integration of information across multiple frequencies. The similarity of these results to those from other sensory cortices provides evidence of common mechanisms across the cerebral cortex for generating global percepts from separate features.

SIGNIFICANCE STATEMENTTo generate coherent percepts, sensory systems integrate simultaneously occurring features of a stimulus, yet the mechanisms by which this integration occurs are not fully understood. Our results show that neurochemically distinct neuronal subtypes in the primary auditory cortex have different contributions to the integration of different frequency components of an acoustic stimulus. Together with findings from other sensory cortices, our results provide evidence of a common mechanism for cortical computations used for global integration of stimulus features.
Materials sovereignty: Pathways for shaping nanotechnology design
Authors: Kokai Akos , Iles Alastair
Published: March 2020

People in contemporary industrial societies encounter countless novel materials that did not exist previously, many of which present risks to health and environment. In this article, we build on the concept of “materials sovereignty” as the right of people to use and be surrounded by environmentally benign, non-toxic, and renewing materials in their everyday lives. As a rights-based approach, materials sovereignty may help change the politics of governing materials. We suggest that social movements that explicitly base interventions into design on materials sovereignty may be better able to gain traction in changing industrial production. We consider the case of nanotechnology as a particularly challenging field for social movement intervention. We review several pathways that have been used by social movement organizations in attempts to influence the development of nanomaterials, but which have met with limited success. We more closely examine three participatory pathways through which social movements could intervene more directly into material design: participatory technology assessment, collaboration with industry, and co-design. We identify three key elements of materials sovereignty: participatory knowledge systems, which create multi-directional flows of knowledge and agency; the embedding of citizen voices into design processes; and building accountability systems. Of the pathways we examine here, co-design appears to be the most promising from a theoretical and ethical perspective, but there remain significant institutional and organizational challenges for bringing it into practice.
ASSESSMENT THE UNUSED CAPACITY USING TIME DRIVEN ACTIVITY BASED COSTING IN AUTOMOTIVE MANUFACTURING INDUSTRY
Authors: Ghani N.F.A. , Zaini S.N.A.M. , Abu M.Y.
Published: March 2020

Automotive Manufacturing Industry usually known implementing all six sigma method and lean manufacturing. However, actual practicality in the world of manufacturing, there are a lot of factors contributes that become the challenge to the ideal of lean production line. Not exclude those factors, there is no methods to identify the possible lost cost by the factors. This research is to identify the used-and un-used capacity exist in production line that considering factors affecting the production line at real time. Time-driven activity-based costing (TDABC) is identified as one of the powerful tools to analyze the actual condition of production. Cost-driver rate is defined in Phase 3 where the highest capacity cost rate calculated is RM0.67 per minutes which involving Station 3, Station 5, Station 7 and Station 8. The least capacity cost rate is RM0.33 per minutes recorded by Station 0(Preparation), Station 2 and Station 6. Ten time equations for each station at trim line is developed. During the development of time equation, criticality of Station 7 when it became the only station affected with all thirteen factors listed can be seen as station that needed focus for improvement or target for lean manufacturing. In regards of the relevancy of applying Time-Driven Activity-Based Costing, as a whole, TD-ABC can be used to identify the estimation capacity used either over or under-used. Not only un-used capacity is identified, but result shows Station 0 is over-used by 2932 minutes equals to RM967.56. Therefore, based on the result obtained, station with over-used capacity and several stations with under-used capacity gives a clear overview to the management of the company for better investment strategy.
COMPARATIVE STUDY: ACTIVITY BASED COSTING AND TIME DRIVEN ACTIVITY BASED COSTING IN ELECTRONIC INDUSTRY
Authors: Zamrud N.F. , Abu M.Y.
Published: March 2020

By the 1980s, Traditional Cost Accounting (TCA) is no longer reflecting the current economic reality due to distorted information about the profitability of their orders, products, and customers. In addition, Activity-based Costing (ABC) is a costing method originally developed to overcome the shortcoming of TCA method in the era of rapidly increasing product complexity and diversification. However, it is not universally accepted because it ignores the potential for unused capacity which will be beneficial for forecasting. The objective of this work is to compare the advantages of ABC and Time-driven Activity-Based Costing (TDABC) by analyzing the features towards costing sustainment. The work begins by collecting data at electric electronic industry located at Pahang and the product selected is a magnetic inductor. ABC focuses on the costs inherent in the activity based products to produce, distribute or support the products concerned. TDABC uses time equation and capacity cost rate (CCR) to measure the unused capacity with respect to the time and cost. This work has successfully compares the methodology between ABC and TDABC in electronic industry. The item such as stages for cost allocation, determination of drivers, action taken for an additional activity, cost consideration for implementation, system building, system update, information given from each method, transparency, overestimation of cost, differentiation of service level, oversimplification of activities and capacity forecast and planning. It concludes that both have their strength according to the industry needs.
Growth hormone retesting during puberty: a cohort study
Authors: Cavarzere Paolo , Gaudino Rossella , Sandri Marco , Ramaroli Diego Alberto , Pietrobelli Angelo , Zaffanello Marco , Guzzo Alessandra , Salvagno Gian Luca , Piacentini Giorgio , Antoniazzi Franco
Published: March 2020

Objectives

To report the frequency and characteristics of growth hormone (GH) deficiency (GHD) in adolescents who had normalized GH secretion at mid-puberty and to identify possible factors predictive for GH sufficiency at puberty.

Design

Clinical analysis of children affected by GHD at five time points: diagnosis; first year of therapy; intermediate stage of puberty; retesting and end of growth phase.

Methods

The study population was 80 children with idiopathic GHD and treated with GH for at least 2 years. Treatment was discontinued at the intermediate stage of puberty. Retesting with an arginine test was performed 12 weeks later. If GH peak at retesting was ≥8 μg/L, the therapy was definitively discontinued, otherwise it was restarted and continued until achievement of near-final height.

Results

GH therapy was discontinued in 44 children (55%), and restarted in 36 (45%). No evidence of differences in definitive height and in the delta height between the genetic target and the definitive height was found between the two groups. The only predictive factor for GHD at mid-puberty was the insulin growth factor-1 (IGF-1) level at 1 year of GH treatment.

Conclusions

GH secretion should be retested at mid-puberty. Retesting at puberty may reduce potential side effects and minimize costs, without impairing growth potential and final height.
Revista Latinoamericana de Derechos Humanos: 20 años
Authors: Cerdas Agüero Evelyn
Published: March 2020

This paper aims to review 20 years of history of the Revista Latinoamericana de Derechos Humanos (Latin American Journal of Human Rights) since its inception as DEHUIDELA in 2009.  The article proposes that this publication is born as an effort of the Instituto de Estudios Latinoamericanos (Institute of Latin American Studies) (IDELA) to support the Human Rights program, as well as an opportunity to develop various themes that will stimulate the students of the Institute in their research topics.  Starting with a new effort in 2009, the journal takes a step to become an indexed scientific publication whose main focus is the publication of works related to human rights as perceived from various disciplines and approaches.  It is concluded  that the work input over the years has made Revista Latinoamericana de Derechos Humanos a quality print and electronic publication that contributes to the dissemination of knowledge of human rights in Latin America from the public university.es
Venda Sexy: Memorias no oficiales de un centro de detención
Authors: Arellano Hermosilla Claudia
Published: March 2020

The following article reflects on the memories and stories of women who were survivors of the Centro de Detención y Tortura la Venda Sexy (Venda Sexy Detention and Torture Center), of the Directorate of National Intelligence (DINA), during the military dictatorship in Chile.  This precinct, in particular, exacerbated the repression, inclined towards sexual political violence. Within these extremely repressive conditions there existed instances of resistance and sorority among women, which allowed them to bend that historical wound, towards an assemblage process, which has translocated to the current feminist struggle.
Apuntes jurisprudenciales: La sentencia del caso Cuscul Piraval y otros Vs. Guatemala, emitida por la Corte Interamericana de Derechos Humanos
Authors: Díaz Pérez Alejandro
Published: March 2020

The judgement of Case of Cuscul Piraval and Others V. Guatemala of August 23, 2018, issued by the Inter-American Court of Human Rights represents the first specific condemnation of the principle of progressivity.  However, this substantial advance in the justiciability of economic, social and cultural rights is accompanied by enormous challenges yet to be overcome by the Inter-American system.  The present article reflects on these challenges by analyzing this important resolution.
Jóvenes promotores de derechos: una experiencia de aprendizaje en el cantón de Garabito, Costa Rica
Authors: Chan-Jiménez Julia , Sánchez Acuña Nancy , Restrepo Salazar María Eugenia
Published: March 2020

This document seeks to share the process by which the “Jóvenes Promotores de Derechos” (“Youth Rights Promoters”) proposal was constructed based on a learning experience carried out with young people between ages 13 to 22 from the community of Garabito in the Central Pacific region of Costa Rica during the years 2016 and 2017.  The subject matter arises from a process of investigation, sensitization and training in Human Rights and Culture of Peace within the framework of the Proyecto Ciudades culturales: UNA alianza para el futuro (Cultural Cities Project: UNA alliance for the future), executed by academic personnel of the Vice-Rectories of Extension and of Education (Vicerectorías de Extensión y de Docencia) of the Universidad Nacional of Costa Rica (UNA) (National University of Costa Rica) in partnership with the City of Garabito’s Centro Cívico para la Paz (CCP) (Civic Center for Peace) and the City of Jaco’s Colegio Técnico Profesional (CTP) (Professional Technical High School), with participation of undergraduate and graduate students from UNA and Universidad Estatal a Distancia (UNED) (State Distance-Learning University).  The process carried out with the support of ludopedagogical tools consisted of three phases; the first, of diagnostic nature, explored young people's perceptions about the problems in their community, violence in its different expressions and the experience of Human Rights.  The second phase corresponds to the strengthening of capacities in issues of leadership, Human Rights and Culture of Peace for young people from both CCP and CTP.  The third phase corresponds to a proposal pilot provided only to 10th grade youths from CTP.  As a result, we arrive at a participatory proposal of sensitization and education aimed at young people with the objective forming them as promoters of rights in their educational centers and communities.
Derechos humanos, democracia y bloqueo: la visión de Rafael Correa acerca de las relaciones políticas entre los Estados Unidos y Cuba
Authors: Barrera Rivera Dan Abner
Published: March 2020

The purpose of this article is to analyze the role played by Rafael Correa in the political relations between the governments of the United States and Cuba.  The former Ecuadorian president addresses the issues of human rights and democracy in the context of the Cuban Embargo that has endured for almost six decades.  The present research was carried out by studying ten videos in which Correa dwells on these subjects; seven videos were interviews and the other three conferences.  Considering the main subject axes (human rights, democracy and embargo) we proceeded to compare the allocutions, relate similarities and deepen the ideas; next, in-depth hermeneutics of the text (videos) were made within the context of the interview itself (sometimes controversial and other times more fraternal); finally, the exhibitor's thinking was systematized following the chronological order of his presentations.  Bibliographic sources (historical, biographical and philosophical), from authorized writers, were also used to sustain some of the developed ideas.  Some of the conclusions are: it is impossible to seriously analyze the Cuban political system without accounting for the economic, commercial and financial embargo suffered by the Island; Cuba possesses a socialist political system wherein a participatory democracy has developed; the embargo is effectively one of the greatest human rights violations of an entire nation; and, the opposition and rejection of the embargo stems from a matter of respect for international law and not due to political sympathies with the Cuban government.  This article merely constitutes an exploratory approach on the subject matter and invites to deeper inquire.
Decreto 0328 de 1958 y Ley 975 de 2005: Reflexiones sobre los cambios de la paz negociada en Colombia
Authors: Román Rendón Raúl Fernando
Published: March 2020

Amnesties and pardons in Colombia have been used as a means for political resolution to the armed conflict.  The political negotiation strategy of the armed struggle has not been a determining factor to help cessation of hostilities and the protection of human rights.  In 1958, Legislative Decree 0328 was issued in search of the pacification of the country’s southwest region, but later, it had to be extended to cover the entire territory due to the spreading of the effects of armed conflict to the rest of the country; its validity was short-lived and only provided benefits until 1959.  Between the second half of the 20th century and the beginning of the 21st, several amnesties and pardons were signed in Colombia with different organized armed groups.  In 2005, Law 975 is signed, it is known as the Justice and Peace Law (Ley de Justicia y Paz) and was expected to demobilize the paramilitary groups that operated throughout the national territory and bring forth a shift in the way of negotiating peace.   In addition, the appearance of the category of victim, to whom rights were granted, was configured in Law 975.  The truth began to be spoken in parallel to the construction of historical memory.
Body Dissatisfaction and Mental Health Outcomes of Youth on Gender-Affirming Hormone Therapy
Authors: Kuper Laura E. , Stewart Sunita , Preston Stephanie , Lau May , Lopez Ximena
Published: March 2020

OBJECTIVES:

Our first aim was to examine baseline differences in body dissatisfaction, depression, and anxiety symptoms by gender, age, and Tanner (ie, pubertal) stage. Our second aim was to test for changes in youth symptoms over the first year of receiving gender-affirming hormone therapy. Our third aim was to examine potential differences in change over time by demographic and treatment characteristics. Youth experiences of suicidal ideation, suicide attempt, and nonsuicidal self-injury (NSSI) are also reported.

METHODS:

Participants (n = 148; ages 9–18 years; mean age 14.9 years) were receiving gender-affirming hormone therapy at a multidisciplinary program in Dallas, Texas (n = 25 puberty suppression only; n = 123 feminizing or masculinizing hormone therapy). Participants completed surveys assessing body dissatisfaction (Body Image Scale), depression (Quick Inventory of Depressive Symptoms), and anxiety (Screen for Child Anxiety Related Emotional Disorders) at initial presentation to the clinic and at follow-up. Clinicians completed the Quick Inventory of Depressive Symptoms and collected information on youth experiences of suicidal ideation, suicide attempt, and NSSI.

RESULTS:

Affirmed males reported greater depression and anxiety at baseline, but these differences were small (P < .01). Youth reported large improvements in body dissatisfaction (P < .001), small to moderate improvements in self-report of depressive symptoms (P < .001), and small improvements in total anxiety symptoms (P < .01). No demographic or treatment-related characteristics were associated with change over time. Lifetime and follow-up rates were 81% and 39% for suicidal ideation, 16% and 4% for suicide attempt, and 52% and 18% for NSSI, respectively.

CONCLUSIONS:

Results provide further evidence of the critical role of gender-affirming hormone therapy in reducing body dissatisfaction. Modest initial improvements in mental health were also evident.
The minimum total heating lander
Authors: Dang Mai Thi
Published: March 2020

The article will research a lander flying into the atmosphere with flow velocity constraint, i.e. the total load by means of minimizing the total thermal energy at the end of the landing process. The lander’s distance at the last moment depends on the variables selected from the total thermal energy minima. To deal with the problem, the  Pontryagin maximum principle and scheme Dubovitskij Milutin will be applied. Boundary value problems are solved by the introduction and continuation of the perturbation parameters and solutions for the selected parameter. The results of simulations are performed on Matlab.
A probabilistic relational database model and algebra
Authors: Nguyen Hoa
Published: March 2020

This paper introduces a probabilistic relational database model, called PRDB, for representing and querying uncertain information of objects in practice. To develop the PRDB model, first, we represent the relational attribute value as a pair of probabilistic distributions on a set for modeling the possibility that the attribute can take one of the values of the set with a probability belonging to the interval which is inferred from the pair of probabilistic distributions. Next, on the basis representing such attribute values, we formally define the notions as the schema, relation, probabilistic functional dependency and probabilistic relational algebraic operations for PRDB. In addition, a set of the properties of the probabilistic relational algebraic operations in PRDB also are formulated and proven.
Definition membership function based on approach to hedge algebras
Authors: VanThang Doan , Van Ban Doan
Published: March 2020

In this paper, we describe a hedge algebras based approach to modeling uncertainty in fuzzy object-oriented databases. Membership value reflects the degree of fuzziness existing in the data value and uncertainty is extended to the class definition level and is the basis for the determination of the membership of an object in a class. On this basis, we recommend methods of determining the membership degree on characteristics of fuzzy attributes, object/class, class/superclass and in addition, multiple inheritance was discussed and analyzed.
HEURISTIC ALGORITHM FOR FRAGMENTATION AND ALLOCATION IN DISTRIBUTED OBJECT ORIENTED DATABASE
Authors: Mai Nga Thúy
Published: March 2020

Class fragmentation and allocation is an important technique to improve the performance of a distributed object oriented database system. The class fragmentation is to split a class into smaller pieces in distributed databases aims to reduce the access to unnecessary data, the allocation is to locate fragmented classes into the sites in the connected network properly to reduce the cost of data transmission. Classes in object databases include attributes describing the characteristics of the object, methods describing the behavior, and relationships with objects with other classes, including relations inheritance. With such characteristics, class fragmentation and allocation in the distributed object oriented database system is more complex than fragmentation technique and design of relational databases. Fragmentation techniques applied in the design of distributed object-oriented database today often do not use cost between the sites, fragments are allocated to the site after getting a fragmentation method of data objects. This paper proposes an algorithm of fragmentation and allocation simultaneously, including the cost of data communication between the sites used for fragmentation to reduce communication costs when processing and querying distributed data.
NONLINEAR CONTROL OF TEMPERATURE PROFILE OF UNSTABLE HEAT CONDUCTION SYSTEMS: A PORT HAMILTONIAN APPROACH
Authors: Phan Tuấn Đình , Hoang Ha Ngoc
Published: March 2020

This paper focuses on boundary control of distributed parameter systems (also called infinite dimensional systems). More precisely, a passivity based approach for the stabilization of temperature profile inside a well-insulated bar with heat conduction in a one-dimensional described by parabolic partial differential equations (PDEs) is developed. This approach is motivated by an appropriate model reduction schema using the finite difference approximation method. On this basis, it allows to discretize and then, write the original parabolic PDEs into a Port Hamiltonian (PH) representation. From this, the boundary control input is therefore synthesized using passive tools to stabilize the temperature at a desired reference profile asymptotically. The infinite dimensional nature of the original distributed parameter system in the PH framework is also discussed. Numerical simulations illustrate the application of the developments.
INPUT SHAPING CONTROL TO REDUCE RESIDUAL VIBRATION OF A FLEXIBLE BEAM
Authors: Nguyen Quoc Chi , Ngo Ha Quang Thinh
Published: March 2020

In this paper, three control algorithms based on input shaping method are developed to suppress the residual vibration of a flexible beam. The flexible beam is modeled as an under-damped system. Three input shapers, ZV, ZVD, and ZVDD, are used to control the flexible beam. The three control algorithms are implemented by using the Mechatrolink-III motion system. The experiments are performed to verify the effectiveness of the three control algorithms.
AUTOMATIC IDENTIFICATION OF VIETNAMESE DIALECTS
Authors: Hung Pham Ngoc , Loan Trinh Van , Quang Nguyen Hong
Published: March 2020

The dialect identification was studied for many languages over the world nevertheless the research on signal processing for Vietnamese dialects is still limited and there were not many published works. There are many different dialects for Vietnamese. The influence of dialectal features on speech recognition systems is important. If the information about dialects is known during speech recognition process, the performance of recognition systems will be better because the corpus of these systems is normally organized according to different dialects. This paper will present the combination of MFCC coefficients and fundamental frequency features of Vietnamese for dialectal identification based on GMM. The experiment result for the dialect corpus of Vietnamese shows that the performance of dialectal identification is increased from 59% for the case using only MFCC coefficients to 71% for the case using MFCC coefficients and the information of fundamental frequency.
Taxonomic assignment for large-scale metagenomic data on high-perfomance systems
Authors: Le Vinh Van , Tran Hoai Van , Duong Hieu Ngoc , Bui Giang Xuan , Tran Lang Van
Published: March 2020

Metagenomics is a powerful approach to study environment samples which do not require the isolation and cultivation of individual organisms. One of the essential tasks in a metagenomic project is to identify the origin of reads, referred to as taxonomic assignment. Due to the fact that each metagenomic project has to analyze large-scale datasets, the metatenomic assignment is very much computation intensive. This study proposes a parallel algorithm for the taxonomic assignment problem, called SeMetaPL, which aims to deal with the computational challenge. The proposed algorithm is evaluated with both simulated and real datasets on a high performance computing system. Experimental results demonstrate that the algorithm is able to achieve good performance and utilize resources of the system efficiently. The software implementing the algorithm and all test datasets can be downloaded at http://it.hcmute.edu.vn/bioinfo/metapro/SeMetaPL.html.
NOVEL CONTROL APPROACH FOR OPTIMAL POWER FLOW IN HYBRID WIND-PHOTOVOLTAIC-DIESEL GENERATION SYSTEMS
Authors: Diep Thang , Quang Nguyen Phung , Huy Nguyen Duc
Published: March 2020

The paper deals with a formulation of an analytical control model for optimal power flow in an islanded microgrid (MG). In an MG with load change, wind power fluctuation, sun irradiation power disturbance, that can significant influence the power flow, and hence the power flow control problem in real life system faces some new challenges. In order to maintain the balance of power flow, a diesel engine generator (DEG) needs to be scheduled. The objective of the control problem is to find the DEG output power by minimizing the total cost of energy. Using the Bellman principle, the optimality conditions obtained satisfy the Hamilton-Jacobi-Bellman equation, which depends on time and system states, and ultimately, leads to a feedback control or to the so called energy management to be implemented in a SCADA system
Some algorithms related to consistent decision table
Authors: Hoang Quang Minh , Thi Vu Duc , San Nguyen Ngoc
Published: March 2020

Rough set theory is useful mathematical tool developed to deal with vagueness and uncertainty. As an important concept of rough set theory, an attribute reduct is a subset of attributes that are jointly sufficient and individually necessary for preserving a particular property of the given information table. Rough set theory is also the most popular for generating decision rules from decision table. In this paper, we propose an algorithm finding object reduct of consistent decsion table. On the other hand, we also show an algorithm to find some attribute reducts and the correctness of our algorithms is proof-theoretically. These our algorithms have polynomial time complexity. Our finding object reduct helps other algorithms of finding attribute reducts become more effectively, especially as working with huge consistent decision table.
Numerical solution of the problems for plates on some complex partial internal supports
Authors: Hai Truong Ha , Quang Vu Vinh , Long Dang Quang
Published: March 2020

In the recent works, Dang and Truong proposed an iterative method for solving some problems of plates on one, two and three line partial internal supports (LPISs), and a cross internal support. In nature they are problems with strongly mixed boundary conditions for biharmonic equation. For this reason the method combines a domain decomposition technique with the reduction of the order of the equation from four to two. In this study, the method is developed for plates on internal supports of more complex configurations. Namely, we examine the cases of symmetric rectangular and H-shape supports, where the computational domain after reducing to the first quadrant of the plate is divided into three subdomains. Also, we consider the case of asymmetric rectangular support where the computational domain needs to be divided into 9 subdomains. The problems under consideration are reduced to sequences of weak mixed boundary value problems for the Poisson equation, which are solved by difference method. The performed numerical experiments show the effectiveness of the iterative method.
DISTORTION-BASED HEURISTIC METHOD FOR SENSITIVE ASSOCIATION RULE HIDING
Authors: Le Bac , Kieu Lien , Tran Dat
Published: March 2020

In the past few years, privacy issues in data mining have received considerable attention in the data mining literature. However, the problem of data security cannot simply be solved by restricting data collection or against unauthorized access, it should be dealt with by providing solutions that  not only protect sensitive information, but also not affect to the accuracy of the results in data mining and not violate the sensitive knowledge related with individual privacy or competitive advantage in businesses. Sensitive association rule hiding is an important issue in privacy preserving data mining. The aim of association rule hiding is to minimize the side effects on the sanitized database, which means to reduce the number of missing non-sensitive rules and the number of generated ghost rules. Current methods for hiding sensitive rules cause side effects and data loss. In this paper, we introduce a new distortion-based method to hide sensitive rules. This method proposes the determination of critical transactions based on the number of non-sensitive maximal frequent itemsets that contain at least one item to the consequent of the sensitive rule, they can be directly affected by the modified transactions. Using this set, the number of non-sensitive itemsets that need to be considered is reduced dramatically. We compute the smallest number of transactions for modification in advance to minimize the damage to the database. Comparative experimental results on real datasets showed that the proposed method can achieve better results than other methods with fewer side effects and data loss.
Mineral contents in the skin and flesh of fruits of apple cultivars
Authors: Sachini Ricardo , Steffens Cristiano André , Martin Mariuccia Schlichting de , Schveitzer Bianca , Fenili Cristhian Leonardo , Petri José Luiz
Published: March 2020

Abstract Apple is considered a functional food, since it presents considerable contribution in the supply of antioxidants, vitamins and minerals, and its consumption is related to the prevention of various diseases. However, most cultivars released in recent years have been poorly studied regarding their nutritional properties. The aim of this work was to quantify mineral contents in the skin and flesh, of apple cultivars with potential production in southern Brazil. The apple cultivars evaluated were ‘Fuji Suprema’, ‘Castel Gala’, ‘Lisgala’, ‘Monalisa’, ‘Luiza’, ‘Daiane’, ‘Venice’, ‘Elenise’ and M.10-09 advanced selection, in the 2017/2018 and 2018/2019 seasons. Among evaluated minerals, considering consumption of a fruit of 115 g with skin (except carpel and seeds), potassium supplies high percentage of recommended daily intake, followed by phosphorus and magnesium. The calcium content in apples presents low contribution to the recommended daily intake. Due to the higher concentrations of minerals in skin in comparison to flesh, the consumption of whole fruit increases the percentage of minerals ingested. In addition, the evaluated minerals showed significant differences as a function of cultivar. ‘Monalisa’ cultivar, in the flesh portion, stood out due to the high phosphorus and calcium content, 204.1 and 36.5 mg kg-1 (2017/2018) and 305.6 and 43.8 mg kg-1 (2018/2019), respectively. ‘Fuji Suprema’, in both harvest seasons, stood out due to the high potassium contents in skin (1073.8 mg kg-1) and flesh (1223.7 mg kg-1) in 2017/2018 and in flesh (1547.3 mg kg-1) in 2018/2019 and magnesium in flesh (122.4 mg kg-1) in 2017/2018 and in skin (231.2 mg kg-1) and flesh (62.4 mg kg-1) in 2018/2019.