bluuebunny/crossref_metadata_2025 huggingface dataset:
The psychometric evaluation of the Revised Exercise Addiction Inventory: Improved psychometric properties by changing item response rating
Authors: Attila Szabo , Amit Pinto , Mark D. Griffiths , Rita Kovácsik , Zsolt Demetrovics
Published: March 2019

Background

The Exercise Addiction Inventory (EAI) is a short, valid, and reliable instrument used to assess the risk for exercise addiction, and has already been used in numerous published studies. The EAI contains six items, rated on a 5-point scale (strongly agree to strongly disagree), which are based on the components model of addiction. The middle of the original scale (scoring 3 out of 5) reflects neither agreement nor disagreement, which conveys neutrality. However, the present authors believe that individual who provides a neutral opinion on each item (i.e., scoring 3) is a conceptual dilemma because it artificially increases the total score obtainable on the scale without yielding agreement or disagreement with a particular item. Indeed, the six items of the EAI are phrased in such way that respondents can either agree or disagree in the slightly to strongly range.

Methods

This study modified the EAI from a 5-point rating scale to a 6-point one, so that it eliminated a middle neutral response. A total of 277 exercising participants completed the Revised Exercise Addiction Inventory (EAI-R) and Exercise Dependence Scale.

Results

All psychometric properties of the EAI-R were superior to the originally published scale.

Conclusion

Considering these findings, it is recommended that scholars now use the EAI-R in the future research if they need to assess the risk of exercise addiction.
Disentangling the effects of empathy components on Internet gaming disorder: A study of vulnerable youth in China
Authors: Hui Bryant P. H. , S. Wu Anise M. , Pun Ngai
Published: March 2019

Background and aims

Previous research shows that empathy can be one of the potential protective factors for Internet gaming disorder (IGD), yet the complex relationships between multidimensional factors of empathy and IGD remain understudied. Thus, a major question moving forward is to resolve the mixed empirical data by examining the specific contributions of empathy components. In this study, we disentangle the effects of cognitive component (i.e., perspective taking) and affective component (i.e., empathic concern and personal distress) on IGD symptoms and propose affect-oriented mediation pathways between them.

Methods

We surveyed a large sample (N = 3,348) of Chinese vocational school students, one of the most vulnerable groups to online gaming addiction.

Results

Our structural equation modeling results revealed that only personal distress, but not empathic concern or perspective taking, positively predicted IGD symptoms. However, empathic concern and personal distress were negatively and positively predicted gaming motive of escape from reality, respectively, which in turn predicted IGD symptoms. Furthermore, we found an indirect effect of perspective taking on IGD through empathic concern and then gaming motive of escape from reality.

Discussion and conclusion

The findings underscore the importance of separating the affective and cognitive components to understand the complex relationships between the empathy and IGD, and support our theorizing of the affect-oriented mediation mechanism.
Personality Types and Megabytes
Authors: Beauvois Margaret Healy , Eledge Jean
Published: March 2019

This article describes the results of a pilot study to examine the attitudes of university students toward the use of computer mediated communication in their French Conversation and Composition course. Student perceptions are examined in the light of their personality types as determined by the Myers-Briggs Type Indicator (MBTI). Quantitative and qualitative data validate that both I (introvert) and E (extrovert) personality types generally perceive the use of LAN (local area network) as a beneficial experience.
Bridging the Language-Literature Gap
Authors: Lyman-Hager Mary Ann
Published: March 2019

Foreign language teaching practices have emphasized oral language instruction at the expense of written language instruction. In addition, many foreign language and literature departments have made a division between language studies and literary studies, a division in which the number of students who pursue literary studies are far less numerous than those who pursue language studies. Some educators now believe that it is time to reemphasize reading and literature in the profession. Computer-enhanced reading instruction holds considerable promise as a means to reintroduce "culturally dense" texts into the curriculum, perhaps earlier than originally possible in traditional approaches to teaching. Finally, the tracking capabilities of reading programs allow researchers to collect data that can shed light on students' use of reading strategies.
Effects of potassium dichromate on the survival and reproduction of  Moina micrura  Kurz. 1875 (Cladocera: Moinidae)
Authors: Mau Trinh Dang , Trang Le Vu Khanh , Trinh Nguyen Nhung Thuy , Son Tran Ngoc , Minh Vo Van
Published: March 2019

Today, heavy metal pollution is an urgent problem in the world including Vietnam. An analytical approach is very important to identify, assess and forecast environmental risks from toxic components, in which ecotoxicology is considered to be the optimal tool. We conducted a study on M. micrura in order to contribute the creation of a biological basis for the use of zooplankton as an early warning of the risk of water pollution. The results showed that M. micrura was isolated from 29/3 Park Lake, Da Nang City, central Vietnam. The acute toxicity test of potassium dichromate on M. micrura showed LC 50 at 12, 24 and 48 hr were 0.26, 0.15 and 0.08 mg.l-1 K2Cr2O7, respectively. EC 50 was 0.015 mg.l-1 K2Cr2O7 for egg parameter and 0.009 mg.l-1 K2Cr2O7for neonate parameter. The results of acute and chronic toxicity tests showed that M. micrura was more sensitive than D. magna, D. pulex and C. cornuta.
LEARNING ENGLISH AS A FOREIGN LANGUAGE IN AN INDONESIAN UNIVERSITY: A STUDY OF NON-ENGLISH DEPARTMENT STUDENTS’ PREFERRED ACTIVITIES INSIDE AND OUTSIDE THE CLASSROOM
Authors: Sulistiyo Urip
Published: March 2019

This study examines a range of learning activities used in teaching English and identifies those that students see as most helpful. The instrument used in this study was a questionnaire adopted from Willing (1988). Some modification had been made to meet the purpose of this study. The questionnaire consists of two parts. Part 1 is ethnographic data in terms of the participants’ gender and field of study. Part 2 consists several items comprises students’ preferred activities in learning English. Students are asked to rank the activities of each category by circling one number. Circling number 1 means it is not helpful /preferable, while circling number 4 means it is very helpful /preferable for them. Then, all the responses were analyzed using SPSS Professional Statistics.The study suggests a number of pedagogical implication for English teaching and learning for non-English department students at universities in Indonesia. The finding suggests that teachers should take preferred activities into account when they are teaching. In addition, the study also proposed some suggestions for further research. These suggestions state the need to conduct research which involves more participants to confirm the results of the current study.
STUDENTS’ GRAMMATICAL COLLOCATION ERRORS AND ITS’ IMPLICATION IN TEACHING WRITING
Authors: Fadlilah Sayyidatul
Published: March 2019

The Regulation of Minister of Education and Culture of the Republic of Indonesia number 49 2014 on National Standard of Higher Education stated that National Standard Research is the minimum criterion of research on higher education system in force in the entire territory of the Republic of Indonesia. The study was conducted according to the rules of the activities and the scientific method systematically to obtain information, data, and information related to the understanding and/or testing of a branch of knowledge and technology. Based on the background the researcher states the following questions of the research: 1) What kinds of grammatical collocation errors were found in students’ thesis? 2) what is the implication of students’ grammatical collocation errors in teaching Writing. The researcher analyzed five major types of grammatical collocation error found in English department students’ thesis. The classification of five major types of English grammatical collocation error will make it easy to understand English grammatical collocations. The first type of English grammatical collocation error is collocation consisting of twelve English verb patterns (G8) which have different grammatical structures as the most challenging followed by (G7), (G1), (G4, (G5). As for the implication of those errors made by students is that the lecturers must include the discussion of collocation in teaching Writing.
Errors Analysis of The Sentences Made by Freshmen of English Department
Authors: Savitri Wiwiet Eva , Akhiriyah Suvi
Published: March 2019

Writing sentence is not a simple task. Yet, it is found many times that even students of latest semesters are unable to compose good writing text due to their inability in producing good sentences. It is an unfortunate because ability in writing good sentences is the fundamental for the next level of writing. The failure of senior students to make good sentences triggers questions on what materials to focus on and how to conduct teaching and learning in the writing and grammar classes. In line with those, this study tries to reveal the errors freshmen students usually make in writing sentences. It is expected that the result of this study helps lecturers to choose appropriate materials and teaching techniques. The results of this study show that most errors are found in terms of grammar, mechanic, logic, and spelling. Hence, it is suggested that freshmen practice sentence writing more to practice the grammar rules, spelling, and mechanic as well as to sharpen their ability in building logical sentences.
Reflection of Teacher’s Interpersonal Skill: Describing The Quality of An Effective Teacher
Authors: Hastowohadi Hastowohadi
Published: March 2019

There are six characteristics that can not be taught, only modeled, they are Caring, Fairness and Respect, Attitude toward the Teaching Profession, Social Interaction with Students, Promotion of Enthusiasm and Motivation for Learning, Reflective Practice. The aspect of teacher as a person is only one of six aspects that should be modeled and demonstrate to the students. But, this aspect is going to be left by teachers in this era. It will be monotonous teacher as a leader and messenger in holding the whole class of teaching-learning activity. Furthermore, in this research, the writer wants to explore and find out what are actually the problems of this issue. The research was done in SMK Visi Global in Banyuwangi and took 6 teachers as an object of research. The writer used descriptive qualitative and describing the phenomenon of this. Indeed, the result was Fairness and Respect, Attitude toward Teaching Profession, Enthusiasm, and Motivation for Learning, and Reflective Practice got above average but Caring, Social Interaction with Students got below average.  This issue described that the teachers in SMK Visi Global were not enlightened by a good teacher as a person and it would be ineffective for the school and students itself. It can be concluded that preparing teacher‟s personality is unavoidable for the professional teacher, in this era or future.
Twitter for Educational Activities in Islamic Higher Education, Why Not?
Authors: Yudhiantara Rully Agung
Published: March 2019

This research was motivated by the need to combine the trend of  using twitter among university students and the need of online educational activities. The study was aimed at investigating: twitter usage between Teacher and students for educational activities.2)discovering students perception on twitter usage for educational activities. This study found that twitter was used for educational activities by teacher and students. The activities occured namely; sharing information,asking and answering, and assigning task. In addition twitter was also used by student to save their document on learning process. Last findings showed that students perceived twitter in a positive manner and they appreciated twitter usage for educational activities.
AN INTEGRATION: NARROW READING TO WEST’S GENERAL SERVICE LIST FOR VOCABULARY ACQUISITION FOR MIDDLE SCHOOL LEVEL
Authors: Fikria Ainun
Published: March 2019

Attempting to consider an SLA issues on vocabulary acquisition in middle school level, this article aimed to investigate the difference in score on vocabulary test of experimental and control group; and to find the effect size of the narrow reading integrated to West’s GSL intervention on students’ English language acquisition. Forty-five middle school students in two classes were assigned in two groups, with 22 students in the experimental group and 23 students in the control group. In addition to a traditional curriculum for both groups, a five-meeting narrow reading on narrative text, fable, which was integrated to West’s GSL was conducted for the experimental group by encouraging students to read using L1 gloss which was derived from GSL, consulting different meaning in some multi-definition content words and discussing on vocabulary exercise. In contrast, the control group did not engage in any narrow reading program but a general English course. A pretest and posttest of both groups were employed to collect data. The findings of the study showed that the intervention has a large effect size on student’s SLA. The experimental group exhibited significantly better reading comprehension, acquired new vocabulary and word knowledge than the control group. Therefore, applying narrow reading integrated to West’s GSL into EFL class helps improve students’ word knowledge in terms of recognizing word meaning, identifying part of speech and producing a sentence.
THE EVALUATION OF BOBBY BOLA DAN PERI BUKU AJAIB 3 FOR LANGUAGE LEARNING
Authors: Hendryani Rika
Published: March 2019

Video games have received much attention in recent years as a tool for foreign language learning.  Number of research has shown the positive impact of video games on language learning learners. This study is aimed to find out the extent to which Bobby Bola & Peri Buku Ajaib 3 meet the 10 principles for designing video games for foreign learning proposed by Purushotma, Thorne, and Wheatley (2009). The findings of this study show that Bobby Bola & Peri Buku Ajaib 3 adhere only to 2 principles, i.e., the principles of “communication and input mechanism should have a playful spirit to them” and “students should be allowed to spend extra time in activities they enjoy and to minimize time in ones they don't”. The result of this study hopefully would be beneficial to the studies of video games for foreign language learning. It is also hoped that it can provide further information for those who wish to evaluate or use video games as a language learning tool.
THE EFFECT OF USING LITERACY INTEGRATED METHOD ON THE STUDENTS’ READING ACHIEVEMENT IN NARRATIVE
Authors: Hasibuan Selamat Husni
Published: March 2019

This research was to investigate the effect of using literacy integrated method on the students’ reading achievement in narrative text. Population of this research was the second year students of Junior High School in SMP NEGERI 13 Binjai Jl. Letjend Jamin Ginting in the academic year 2017/2018. Two classes were taken by total sampling which divided into two groups, the first group VIII-1 which consisted of 36 students was experimental group which was given treatment by literacy integrated method and second group VIII-2 which consisted of 36 students was control group which was given treatment by using grammar translation method. Each group was given a pre-test and post-test. After the data had been collected, these were analyzed by using t-test formula. Based on the result of this research, it was concluded that there was significant effect of using literacy integrated method on the students’ reading achievement in narrative text.
THE EFFECTS OF USING DUOLINGO TOWARDS STUDENT’S VOCABULARY MASTERY (AN EXPERIMENT OF JUNIOR HIGH SCHOOL STUDENTS AT OMEGA SAINS INSTITUTE)
Authors: Kusumadewi Hermariyanti
Published: March 2019

Learning a foreign language is not so tedious and troublesome through the internet software to be the easiest platform, lots to avail and reach, such as Duolingo. Duolingo deliberately carry the concept of "playing while learning" to make it more fun and easier to use by all ages. This research aim is to find out the effects of using Duolingo towards student’s vocabulary mastery. It also expected to enable tutors to utilize electronic media such as Duolingo to support more modern and interesting teaching activities such as mobile or web-based applications. This research is an experimental research to find effects of using Duolingo (x) towards student’s vocabulary mastery (y) in controlled condition. The experimental method used is true-experimental design, the researchers used Post-test Only Control. The sampling technique used by the researcher is simple random sampling, which is the experimental class VIII consisting of 30 students, as well as the control class VIII consisting of 30 students. The result of student learning English with media Duolingo's Android Application has a positive effect compared to conventional student approaches.
Study of 2m-th order parabolic equation in non-symmetric conical domains
Authors: CHERFAOUİ Saida , KESSAB Amor , KHELOUFİ Arezki
Published: March 2019

This article is devoted to the study of a $N$-space dimensional linear high-order parabolic equation, subject to Cauchy-Dirichlet boundary conditions. The problem is set in a non-symmetric conical domain. The analysis is performed in the framework of weighted anisotropic Sobolev spaces by using the domain decomposition method.
microRNA-431 as a Chemosensitizer and Potentiator of Drug Activity in Adrenocortical Carcinoma
Authors: Kwok Grace T.Y. , Zhao Jing Ting , Glover Anthony R. , Gill Anthony J. , Clifton-Bligh Roderick , Robinson Bruce G. , Ip Julian C.Y. , Sidhu Stan B.
Published: March 2019

Background

Adrenocortical carcinoma (ACC) is a rare endocrine cancer with treatments limited in efficacy for metastatic disease. New molecular targeted therapies have yet to improve patient outcomes. In contrast, established treatment regimens of adrenolytics and chemotherapy have demonstrated treatment benefit, although admittedly in a minority of patients. Identification of microRNAs (miRNAs) in patients responsive to adjuvant therapy may offer a means to sensitize patients with progressive disease to existing adjuvant regimens.

Materials and Methods

Samples from primary ACC tumors of 10 Stage IV patients were examined for differentially expressed miRNAs between a “sensitive” and “resistant” cohort. Candidate microRNAs were restored via transfection in two functional ACC cell lines. Gain of function and effects on apoptosis and cell cycle were assessed.

Results

microRNA-431 (miR-431) was underexpressed in patients with ACC with progressive disease undergoing adjuvant therapy. Restoration of miR-431 in vitro decreased the half maximal inhibitory concentrations of doxorubicin and mitotane, with markedly increased apoptosis. We found that a reversal of epithelial-mesenchymal transition underlies the action of miR-431 with doxorubicin treatment, with Zinc Finger E-Box Binding Homeobox 1 implicated as the molecular target of miR-431 in ACC.

Conclusion

This is the first report of the potential of miRNA therapy to sensitize ACC to current established adjuvant therapy regimens, which may mitigate the resistance underlying treatment failure in patients with advanced ACC. Effective and well-studied methods of targeted miRNA delivery in existence hints at the imminent translatability of these findings.
An investigation of plant-induced suction and its implications for slope stability
Authors: Yildiz Anil , Graf Frank , Springman Sarah M.
Published: March 2019

Both above- and below-ground biomass of plants provide additional strength to soil through different mechanisms, which help to increase the stability of a vegetated slope. Nonetheless, shallow landslides on steep slopes covered with vegetation still occur, often being triggered above the groundwater table, due to loss of suction subsequent to rainfall. Therefore, it is essential to know to what extent vegetation enhances slope stability, and to quantify the contribution of vegetation to the shear strength of soil to determine factors of safety. Results of large-scale direct shear experiments on root-permeated soils and slope geometry from a landslide database were synthesised through an infinite slope analysis under partially saturated conditions to find critical combinations of slope angle and suction stress. Monte Carlo simulations yielded a clear separation of stable and unstable zones, which can be used to define the susceptibility of a slope to near surface failure. This method, based on the simulations, has the potential to be used as a regional early warning system.
Causes of cracking of an existing pavement after highway widening in an area of soft soil
Authors: Yu Heng , Wang Yimin , Chen Yekai
Published: March 2019

After the Guangsan expressway in China was widened in 2010–2012, many longitudinal cracks and partial drop-offs appeared in the pavement of both the existing road and the new road. This situation is at odds with the traditional understanding that pavement distress should arise only in the area connecting the new road with the existing one. By considering (a) the geological conditions, (b) how soft clay consolidates and (c) settlement data acquired while the new embankment was being constructed, the following hypothesis is proposed: the additional load applied by the new embankment filling on the existing road foundation caused uneven settlement of the latter, thus causing the existing pavement to crack. A numerical model of the highway widening is established based on the actual project, and the hypothesis is verified by analysing the ground surface settlement and the horizontal displacement in the deep foundation.
Experimental and Statistical Investigation of Surface Roughness in Turning of AISI 4140 Steel
Authors: Akkuş Harun
Published: March 2019

In this study, AISI 4140 tempering
steel with 48 HRc hardness was machined on CNC lathe with different cutting
parameters and cooling environment. The Taguchi L9 test design was
developed based on the three-level cutting speed, feed, chip depth and cooling
environment parameters. The average surface roughness (Ra) values were measured
in experiments made according to the L9 test design. Chip form
occurring during turning is photographed. The Signal/Noise (S/N) ratios of the
Taguchi experiment design in the Minitab program have been determined.
According to the experimental results, the most significant effect on the Ra
from the four factors was found in the hand made by the depth of cut. In ANOVA
analysis, it was respectively determined that depth of cut, cutting speed, feed
rate and cooling environment affected 95% confidence in Ra value. It has been
found that the repeat experiments for the optimum parameters yielded about 90%
accuracy compared to the Taguchi estimate.
El papel de la participación en la transición socio-ecológica de la ciudad
Authors: Donadei Marta
Published: March 2019

Pese a la creciente sensibilización a los efectos del cambio climático, sus cada vez más acusadas consecuencias demuestran el peligro que supone el seguir con el imperativo unilateral del crecimiento económico, caracterizado por una ‘intoxicación consumista’ que nos ha llevado a esta situación de carestía crónica global de recursos (Fernández Durán & González Reyes, 2014; Hessel & Morin, 2012). En este contexto, “el nuevo enfoque no puede reducirse a mero arreglo cosmético de un paradigma en crisis” (Max Neef, Elizalde, & Hopenhayn, 1994, p. 37), sino que requiere también un cambio de paradigma para avanzar hacia la sostenibilidad ambiental y la equidad social. Para ello se quiere incidir en el hecho de que la involucración activa de la población resulta elemento clave para activar un cambio en la forma que la sociedad occidental tiene de entender la naturaleza y para construir alternativas reales al actual modelo de ocupación del territorio, que estén basadas en el paradigma ecológico. Así, el planteamiento de este artículo encuentra sus bases teóricas en la Producción y Gestión Social del Hábitat (en adelante PGSH), entendiendo por Trasformación Social del Hábitat el conjunto de procesos tendientes a la transformación del hábitat existente en los cuales la iniciativa ciudadana tiene un papel activo en la toma de decisiones.
Empoderamiento de la mujer rural e indígena en México a través de grupos productivos y microempresas sociales
Authors: Robinson Trápaga Diana Gabriela , Díaz-Carrión Isis Arlene , Cruz Hernández Sergio
Published: March 2019

La organización de las mujeres indígenas y rurales en grupos productivos y microempresas pretende ser un mecanismo hacia el empoderamiento, combate a la pobreza, y equidad de género, los tres son Objetivos de Desarrollo Sostenible de la Agenda para el Desarrollo al 2030 de las Naciones Unidas (PNUD, 2017); en México, dichos objetivos se abordan desde el Plan Nacional de Desarrollo, PND (2013-2018), donde además se establece como estrategia transversal la perspectiva de género para ser aplicada en el diseño e implementación de políticas, programas y presupuestos sectoriales, se define como prioridad atender el rezago social de la población en especial de las minorías (OCDE, 2017). El objetivo del presente artículo busca evidenciar la relación del empoderamiento de las mujeres rurales e indígenas a través de su participación en emprendimientos de proyectos productivos y microempresas sociales. La investigación se realiza bajo una metodología de tipo descriptiva con diseño documental a partir de una revisión de literatura de publicaciones que relacionan ambos conceptos. Como resultado de la investigación se propone un modelo preliminar integrador que considera factores de ambas teorías y pretende conducir a la inclusión de este grupo vulnerable. Se concluye que se requiere de acompañamiento, empatía y capacitación para construir Microempresas socialesque agregan valor social (Yunus, 2007, Pokhriyal, Rani y Uniyal, 2014) y aportan al desarrollo local (Defourny, 2014, Peredo y Chrisman, 2006).
Self-help Test on Michael Walzer’s military intervention theory
Authors: Paradela López Miguel
Published: March 2019

This paper analyzes the importance of Michael Walzer’s self-help test and discusses its importance as a link between a community’s internal conflict and foreign military intervention. After a brief introduction to self-determination theory in Walzer’s philosophical thought –describing self-determination and non-intervention principles within the presumption of state legitimacy–, the paper examines the concept of self-help. Also, it addresses the particular features of this mechanism, examining the two levels of this test as well as the consequences of passing both. Then, the study discusses the importance of military intervention –either counter-intervention or intervention in contexts of secession – as a guarantor of self-determination in the international realm. Finally, the paper challenges the philosophical connection established by Walzer between military victory and national representativeness through the study of the Syrian Civil War. The article concludes that the self-help test is a controversial yet interesting proposal combining the respect for self-determination commitment with military intervention in the protection of international stability
Lo que se llevó el Ciclón del 16 en la Cuba ciberpunk Underguater de Erick J. Mota
Authors: Toledano Redondo Juan C.
Published: March 2019

La novela Habana Underguater y los cuentos del universo Underguater, publicados por el autor cubano Erick J. Mota en la primera década del siglo xxi, reflejan una forma diferente de hacer ciencia ficción en Cuba, y proponen una reapropiación y modernización de los mitos y las culturas transculturadas locales y caribeñas, poniendo énfasis en las culturas y etnias de origen afrodescendiente. A través de un ciberpunk —con “i” latina— (pero no segregado el experimento al estilo ciberpunk), el universo Underguater reflexiona sobre el pasado, el presente y el futuro distópicos de la isla caribeña y se pone como ejemplo de las propuestas de muchos otros escritores del fantástico caribeño del siglo xxi.
Ciclos y élites: patrones recurrentes en la literatura de Asimov
Authors: Arroyo José Luis
Published: March 2019

La repetición de patrones es, junto a la riqueza transtextual de su obra, un elemento característico en la literatura de Isaac Asimov. Ambos configuran un estilo muy particular, criticado en ocasiones, pero indu¬ dablemente interesante, pues permite una lectura palimpséstica que los aficionados al género de la ciencia ficción siempre han valorado. En el caso concreto de los patrones, hay dos que se repiten con gran frecuencia en sus distintos trabajos: los ciclos y las élites gobernantes. Respecto al primero, Asimov usa una y otra vez la idea de ciclo histórico, insistiendo en una suerte de palingenesia, en ocasiones de un modo sutil, y en otras casi según la interpretación literal que hacían los estoicos, como sucede en el relato “Nightfall”. Acerca del segundo, las élites gobernantes, inspiradas en gran medida en La República de Platón, observamos claras semejanzas intertextuales entre sus obras, con esquemas extraordinariamente similares. En este trabajo profundizamos en ambos patrones, recorriendo algunas de sus principales novelas y relatos para esclarecer los diseños que Asimov repetía con asiduidad.
Chelex DNA isolation for quick plant genotyping v1
Authors: M Julkowska Magdalena
Published: March 2019

Quick and dirty, but very very fast protocol for DNA isolation. It works beautifully if you have plenty of lines to genotype - example T-DNA insertion lines for validation of your favourite gene.
IODIMETRY-PHOTOMETRIC DETERMINATION OF PERIODATE, IODATE AND BROMATE IN WATER SOLUTIONS
Authors: Тrohimenko O. , Zaporozhets O. , Тrohimenko A.
Published: March 2019

A simple and accurate three-step procedure for sequential spectrophotometric determinations of periodate, iodate and bromate in aqueous media has been developed. At the first stage the determination of periodate is based on the selective oxidation of the excess amount of iodide at pH=4.8 to produce iodine (triiodide), that can be found by spectrophotometric detection (λmax=350 nm). After detecting the analytical signal, iodine is removed from the solution by sorption on the polyurethane foam. In the second stage the determination of iodate is based on the selective oxidation of iodide at pH=3.0 to produce iodine (triiodide), that also can be found by spectrophotometric detection (λmax=350 nm). After detecting the analytical signal, also iodine is removed from the solution by sorption on the polyurethane foam. In the third stage the determination of bromate is based on the selective oxidation of iodide at pH=1.0 to produce iodine (triiodide), that also can be found by spectrophotometric detection (λmax=350 nm).

It has been established that the equilibrium in the reaction (ІО4– + 7І– + 8Н+ → 4І2 +4Н2О) is established in 3 minutes at pH=4.8. The equilibrium in the both reactions (ІО3– + 5І– + 6Н+ → 3І2 +3Н2О and BrО3– + 6І– + 6Н+ → 3І2 +Br– +3Н2О) is established in 7 minutes at pH=3.0 and at pH=1.0 respectively. It was found that oxohalogates are quantitatively converted to I2 with ~ 100-fold molar excess iodide at appropriate optimal pH values.

Schematically, the determination of IO4–, IO3– and BrO3– in their combined presence can be represented as follows: where SF is spectrophotometry in a solution at 350 nm: PUF is the polyurethane foam.
Based on the data obtained, the model mixtures of periodate, iodate and bromate by sequential iodiometry-photometric method were analyzed. The error of determination in mixtures of each oxo-halogenate did not exceed 5%.
SYNTHESIS AND OPTICAL PROPERTIES OF NEW SYMMETRIC PYRAZOL-CONTAINED HETEROCYCLES AND THE PERSPECTIVE OF DEVELOPMENT OF HOLOGRAPHIC MEDIUM BASED ON IT
Authors: Vyshnevskyi D. , Ovdenko V. , Pavlov V. , Mokrynskaia O. , Davidenko M.
Published: March 2019

By the interaction of a symmetric bis-aldehyde with 1-phenyl-3-methylpyrazolone-5, a new symmetrical dye capable of photoinduced isomerization was obtained. Recording media (RM) based on synthesized dye and soft polymer matrix were prepared. Intensity of absorption of RM rises with increasing of dye percentage in polymer matrix. But, Beer-Lambert law is not fulfilled. Therefore, the partial aggregation of dye molecules is present. As in the case of azo-compounds, information recording proceeds, probably, through spatial changes caused by the photoinduced E,Z double bond isomerization. Recorded holograms have the polarization nature – it was proved by the quenching of diffraction orders during changing the polarization of reference beam from е1⊥e2 to е1║е2. It was shown that compounds containing the –НС=С< bond, where =С< is the part of heterocyclic moiety are able to the isomerization. The diffraction efficiency is expected to be higher due to presence of two photoactive groups in symmetric molecule, comparing with molecules with one photoactive group. Light absorption with λ=532 nm by the dye molecules is proved to be sufficient for holograms recording and relaxation despite the low adsorption intensity at such wavelength. The recording and relaxation speed are high. Fast increasing of η in the beginning of hologram exposition and, after turning off the illumination beam, fast decay, according to the η||(t) and η⊥(t) curves. Hence, this polymer composite is capable for further applications in dynamic holography. It was shown that increasing of dye amount in polymer matrix leads to growth of diffraction efficiency. It has been established that data recording media is characterized by higher values of diffraction efficiency with parallel polarization compared to perpendicular.
INFLUENCE OF MACROCYCLIC COORDINATION COMPOUNDS OF COPPER (III) ON THE PRODUCTIVITY OF VIRUSINDICATED SPRING WHEAT PLANTS
Authors: Mishchenko L. , Krinitska K. , Pavlenko V. , Dunich A.
Published: March 2019

Viral plant diseases cause crop losses and deterioration in product quality. One of the most widespread and harmful for wheat is Wheat streak mosaic virus. In this work, effect of two cooper (III) macrocyclic coordination compounds on growth and development of spring wheat plants infected with Wheat streak mosaic virus is investigated. The macrocyclic complexes have been obtained by template synthesis by reaction of oxalyl dihydrazide with carbonyl compounds (cyclohexanone or formaldehyde in the presence of copper(II) salts and atmospheric oxygen in aqueous solution. Identity and purity of the isolated compounds was confirmed by elemental analysis and powder X-ray analysis. The structure of the complexes was established by means of single crystal X-ray analysis. Aqueous solutions of both complexes can exist indefinitely long at ambient conditions without any signs of destruction. It was found that compounds increased plant weight and its dry matter content depending on the application method. In two variants, the seeds were sprouted on distilled water and treated with 0.05% solution of the studied complexes and in two other variants the seeds were soaked in 0.1% solutions of the same complexes, and then sprouted at 22°С. A positive effect on non-specific plant resistance upon foliar treatment with sodium-containing compound has been detected. Seed soaking with solutions of complex compounds result in overall positive impact on wheat development. The lithium and potassium counter cation-containing compound increased the weight of the ground part and root system, while compound with sodium counter cation – dry matter content in the roots in both healthy and virus infected plants. This indicates about the stimulation of resistance processes in wheat plants to WSMV-infection.
ITO ELECTRODES MODIFIED WITH MnO2/SiO2 FOR THE DETERMINATION OF HYDROGEN PEROXIDE
Authors: Kovalyk A. , Tananaiko O.
Published: March 2019

Nanostructured transition metal oxide nanoparticles possess a catalytic activity to hydrogen peroxide. Manganese dioxide particles are one of the promising and available modificators of the electrode surface. Nanostructured MnO2 deposited onto the surface of the electrode enhances the electron transport from the H2O2 molecule to the surface. Thus selectivity and sensitivity of H2O2 detection can be improved. There are a lot of different methods of the impregnation of manganese dioxide particles onto electrode surface. An electrophoretic deposition is one of the most simple and rapid. By adjusting the electrodeposition parameters, particles of different sizes or films can be obtained. A simple and novel hydrogen peroxide sensor based on layer-by-layer assembly of MnO2 nanoparticles and SiO2 film on the ITO electrode was developed. For this purpose MnO2 nanoparticles were electrodeposited on the surface of ITO electrode from MnSO4/CH3COOK solution. The electrochemical characteristics of the modified electrodes were investigated by cyclic voltammetry.The presence of MnO2 on the surface of modified electrode was indicated by the appearance of clear oxidation-reduction peaks of Mn(IV)/Mn(III,II) at E=0.65 V in the electrolyte solution in contrast to unmodified electrode. Optimization of measurement parameters such as the amount of MnO2, applied potential and pH value were studied in details. Under the optimum conditions, the calibration curve for H2O2 determination using modified electrode was linear in the range from 1×10−4 to 1×10−3 mol/dm3 with a detection limit of 0.09×10−4 mol/dm3 (S/N = 3). The linear rang for non-modified electrode was from 1×10−3 to 1×10−2 mol/dm3 with a detection limit of 1.8×10−4 mol/dm3 (S/N = 3). The modified ITO electrode was characterized by higher current than non modified ITO as a result of increasing of electroactive surface area and catalytic effect of electrodeposited MnO2.For the stabilization of MnO2 particles and protection of the electrode surface from impurities, the ITO/MnO2 was covered by thin silica film. The selectivity of H2O2 determination at ITO modified with MnO2/SiO2 was better than at ITO especially in the presence of ascorbic acid which is oxidized at the same potential as H2O2. The oxidation current of ascorbic acid was much higher than H2O2 at nonmodified ITO in contrast to ITO modified with MnO2/SiO2. The developed ITO electrode modified with MnO2/SiO2 is a perspective element of amperometric sensor for the detection of hydrogen peroxide.
Evolution of Representations Regarding Family Relations in the Development and Course of Schizophrenia
Authors: Getmanenko I.A. , Trusova A.V.
Published: March 2019

The study considers the scientific views on the role of family relationships in the development and progress of schizophrenia, which have undergone a serious transformation during the last century. Earlier on, adepts of the psychoanalytic approach considered certain patterns of early interactions with the mother and significant others as a pathogen contributing to the development of schizophrenia in children, which caused stigmatization and significant distress of the patients’ relatives. According to the modern approach, close relatives of the patients are viewed firstly as people suffering in their situation and requiring psychological support, and secondly as one of the main factors defining the patient’s rehabilitation potential. The modern views refer to the fact that adequate family relationships can positively influence the opportunities of social adaptation of the patient, reduce the disease recurrence and contribute to an increased compliance. At the same time, negative relationships produce the opposite effect. Thus, examining the peculiarities of the patient’s family relations can be considered an undoubtedly important task, together with developing and implementing specialized psychosocial family interventions.
Deficits of Prospective Capacity as Possible Mechanism in Pathogenesis of Alcohol Dependence
Authors: Tuchina O.D. , Shustov D.I. , Agibalova T.V. , Shustova S.A.
Published: March 2019

The article presents a taxonomy of prospective capacity (PC) relying on the up-to-date understanding of its neurobiological and psychological mechanisms. The rationale for the existence of a dissociation between adaptive and maladaptive manifestations of explicit and implicit forms of PC rests on a study of clinical cases of alcohol-dependent patients (N=5) and adult children of alcoholics (N=1), who ap plied for outpatient psychotherapy of alcohol dependence or related issues. The patients underwent specific semi-structured interviews (Shustov et al., 2000; Johnsson, 2011); completed the Life Line method (Nurkova, 2000) and compiled genograms (McGoldrick et al, 2008). Based on the findings of clinical case studies, the authors have proposed that alcohol-dependent patients’ PC deficits that aggravate the course of alcohol dependence may relate to the existence of socially and culturally bound automatic prospective schemata, i.e. scripts that relate to specific states of self and actualize under uncertainty, stress and/or alcohol intoxication.
Existential Analysis of Freedom. On the Practical and Psychotherapeutic Substantiation of Personal Freedom (Part 2)
Authors: Langle A.
Published: March 2019

Human freedom requires the ability to release oneself. Responsible shaping of the process of will requires consistency (internal and external) in the dialogue (internal and external). The second part of the paper (the first was published in issue 4, 2018) attempts to methodically approach the source of freedom — the place where the inner “speaking” is revealed in us. The more a person relates to this inner “talk to him/herself”, the freer he/she is, and, at the same time, more responsible. Practical work to achieve freedom in psychotherapy is demonstrated by the example at the end of the article.
Türkiye’de Nükleer Siber Emniyet ve Nükleer Güvenlik
Authors: Gençay Abdullah , Cantürk Nergis , Özsoy Sait
Published: March 2019

In the last decade, the concept of cyber has entered the institutional life of our country quickly and efficiently with its positive and negative aspects. It’s important that to provide nuclear cyber security in our country, which is experiencing rapid actions and developments in the nuclear field. It requires experts in cyber and nuclear field to be in both national authority agencies and nuclear facility operators. The risk of permanent damage caused by mistakes in the process of providing nuclear cyber security does not give countries the chance to experience the process of crawling in this field. For this reason, it is necessary to learn how to live with nuclear cyber security in our country which aims to build/operate a nuclear facility, to evaluate the risks of this field and to take measures for these risks without wasting time.
La educación en Salud Ocupacional
Authors: González-Baltazar Raquel , León-Cortés Silvia G. , Contreras Estrada Mónica I. , Hidalgo-González Liliana M.
Published: March 2019

Como se podrá apreciar, la importancia de la medicina ocupacional, data desde el siglo XVIII, cuando Ramazzini1 ponía énfasis en que a los pacientes se les debería de preguntar acerca de su ocupación, pues ya desde entonces se reconocía que la actividad laboral podría estar relacionada con la enfermedad de los pacientes. Actualmente la Salud Ocupacional no tiene un abordaje exclusivo en el campo de la medicina, sino que se ha convertido en una disciplina multidisciplinaria, donde pueden participar médicos, terapeutas, ingenieros, abogados, psicólogos, trabajadores sociales y muchos otros profesionales cuyas actividades se relacionan con la salud de los trabajadores, sobre todo en el ámbito de la prevención y de la intervención y no solamente en diagnosticar y curar las enfermedades relacionadas con la actividad laboral.
Performance assessment of public health center in pare-pare, South Sulawesi
Authors: Pythaloka Ajeng Dyah , . Darmawansyah , Asdar Muhammad
Published: March 2019

Background: Customer (patient) satisfaction in health services is very important to note because it can describe the quality of services in the health service. This study aims to determine the level of performance assesment of public health centers relating to the quality of public health centers service, management of public health centers and health services based on patient satisfaction in the public health center in Parepare, South Sulawesi.Methods: The research method is quantitative with survey research to determine the level of reseach results on public health centers about patient satisfaction.Results: The results of the study indicate that performance assessment is in the form of the quality of service possessed by the public health center obtained an average performance value of 8.8 with a good performance category. Management of the public health center obtained an average performance value of 8.9 with a good performance category. Health services obtained an average performance value of 90.7% with sufficient performance categories. Customer satisfaction obtained an average value of 71.1% in the good category.Conclusions: Service quality of public health center has a good performance, health center management has good performance, health services have sufficient performance, customer satisfaction has a good category. So that the average performance of the public health center has results comparable to the results of customer satisfaction, which is a good category.
An assessment of knowledge and practices relating to the usage of sanitary pads
Authors: Rai Namrita , Crimbly Faine , Aftab Summaya , Baig Aleena , Fernandes Nathaline , Mahmood Syed Uzair
Published: March 2019

Background: The knowledge of the proper use, disposal of sanitary pads, and its related side effects during menstruation is a vital aspect of a woman’s well-being. Use of sanitary pads appropriately and replacing them on time are essential practices needed to maintain menstrual hygiene. Failure to do so may lead to detrimental consequences that could affect the health of women and make them susceptible to reproductive tract infections. Objectives were to assess a range of factors considered by female about the usage of sanitary pads and the various methods employed regarding its disposal.Methods: A cross sectional study was conducted from March to June 2018, in the city of Karachi, by students of Jinnah Sindh Medical University. A sampling technique was used to select 391 females. Data collection was carried out using a structured questionnaire, by convenience sampling. Response of the participants was acquired using a 5-point Likert scale.Results: In total, 391 females from the city took part in this study; their ages ranging between 15-45 years. 95.7% of these females preferred sanitary pads over cloth, tampons, menstrual cups and toilet paper. Many women using sanitary pads believed, pads should be replaced often while menstruating and failure to do so may increase the risk of contracting infections (p≤0.01).Conclusions: The findings showed that a significant number of women are aware of the risks associated with sanitary napkins and have adequate knowledge related to its proper usage. The study also presented no significant risk of adverse effects associated with the use of sanitary pads.