bluuebunny/crossref_metadata_2025 huggingface dataset:
Using the Fuzzy Logic in Assessing the Programming Performance of Students
Authors: ARSLAN NAMLI Nihan , ŞENKAL Ozan
Published: October 2018

The overall objective of this study is to understand
how the fuzzy logic theory can be used in measuring the programming performance
of the undergraduate students, as well as proving the advantages of using fuzzy
logic in evaluation of students’ performance. 336 students were involved in the
sample of this quantitative study. The first group was consisted of 150 students,
whereas the second group was consisted of 186 students. Cluster analysis was also
conducted in order to ensure the neutrality of sample. The rule-based intelligent
fuzzy logic assessment logic (FLAL) system was developed. This system has a flexible
database in order to assess the academic programming performances of students. Therefore,
an absolute evaluation system was used in order to calculate the second group’s
performance. On the other hand, FLAL system was applied to the first group to determine
their programming performance. A Mamdani-type fuzzy logic algorithm mechanism having
two inputs and one output was utilized. An independent sample T test was used in
analyzing the data sets. As a result, there was a significant difference between
first and second groups’ results in favor of the first group. While 29 students comprised
of 19.3% of all the students failed in the flexible percentage system, 41 students comprised of
22% of all the students failed in the absolute evaluation system
evaluating
their grades via fuzzy logic system. By increasing the input
parameters of the fuzzy logic rules, the results can be addressed more efficiently.
Comparación In vitro de la resistencia adhesiva de los sistemas adhesivos Etch and Rinse (grabado y enjuague) y self etch (Autograbado)
Authors: Miranda Edwin
Published: October 2018

El propósito del estudio fue comparar in vitro la resistencia adhesiva de los sistemas Etch and Rinse (grabado y enjuague), 4ta y 5ta generación; y los sistemas Self Etch (autograbado), 6ta y 7ma generación. Se realizó un estudiodescriptivo, comparativo. Se utilizaron 20 terceros molares extraídos por motivos ortodóncico y profilácticos. Los cuales fueron cortados por la mitad obteniendo 40 muestras, en forma aleatoria los dientes fueron divididos en cuatro grupos, 10 con 4ta generación, 10 con 5ta generación, 10 con 6ta generación y 10 con 7ma generación. Se realizó una prueba de tracción vertical medido en kilogramos fuerza, para luego ser transformados a megapascales (Mpa). Las resinas de 4ta generación obtuvieron una resistencia adhesiva de 29,9 Mpa, las de 5ta una resistencia de 16,9 Mpa, la de 6ta una resistencia de 27,5 Mpa y las de 7ma generación una resistencia de 11,0 Mpa. Los resultados se sometieron a pruebas de normalidad mediante la prueba de Shapiro Wilk, los mismos que fueron analizados mediante el ANOVA de un factor, encontrándose diferencias estadísticamente significativas entre los cuatro grupos de estudio conun valor p de 0,001. Se concluye que el sistema adhesivo de 4ta generación clasificado como Etch and Rinse presento mejor resistencia adhesiva, seguido del sistema adhesivo de 6ta generación clasificado como Self Etch.
Presencia de “caspa” en las vicuñas de la Reserva de Producción de Fauna Chimborazo – Ecuador
Authors: Zúñiga Marco
Published: October 2018

El día 06 y 07 de setiembre del año 2017, mediante autorización del Ministerio del Ambiente y el Gobierno Autónomo Descentralizado de la Provincia de Chimborazo – Ecuador, se llevó a cabo dos capturas y esquilas de vicuñascon fines productivos en el lugar denominado Arenal y Mechahuasca de las Provincia Tungurahua y Bolívar. En la primera zona se capturo 57 vicuñas de las cuales 6 fueron liberadas por no cumplir requisitos técnicos y 52 vicuñas seesquilaron obteniéndose 11.765 kg de fibra sucia. Es importante mencionar que se encontraron 13 vellones con “caspa”, representando el 21.2% de vellones obtenidos. En cuanto al segundo sitio, se capturaron 80 vicuñas de las cuales 13fueron liberadas y 67 esquiladas con un peso de 14.444 kg. de fibra sucia. En esta zona se encontró 02 vellones con “caspa” la cual representa el 2.5%. En la Reserva de Producción de Fauna Chimborazo – Ecuador de acuerdo a los datos obtenidos en estas capturas y esquilas, existe una presencia significativa de “caspa” lo cual en el momento de la comercialización de la fibra de vicuñava a traer consecuencias negativas respecto a la obtención de ingresos económicos por lo tanto urge de maneraprioritaria realizar estudios de investigación los cuales conlleven a determinar las causas de esta anomalía patológicay su posterior tratamiento.
Formación en competencias digitales para estudiantes universitarios basada en el modelo DigComp
Authors: González Calatayud Víctor , Román García Marimar , Prendes Espinosa María Paz
Published: October 2018

La competencia digital es una de las competencias básicas del ciudadano del siglo XXI y es además una de las competencias transversales de todas las universidades españolas. En este contexto, cobra especial relevancia la formación en competencias digitales de los estudiantes universitarios y para ello hemos llevado a cabo la experiencia que describimos en este artículo. Hemos diseñado una propuesta formativa basada en un método de aprendizaje por tareas y sustentada en las 5 dimensiones de la competencia digital de la Comisión Europea. Hemos recogido datos de evaluación con un diseño pretest-postest aplicando un cuestionario. Tras evaluar la experiencia, nuestros estudiantes han expresado su satisfacción con la metodología y han puesto en evidencia la adquisición de la competencia.
Herramientas de gamificación para el aprendizaje de ciencias de la tierra
Authors: De Soto García Isabel Sonsoles
Published: October 2018

El porcentaje de abandono escolar en España es superior al de otros países de la Unión Europea, lo que hace necesario fomentar el rendimiento del alumnado y su motivación. En este contexto, la gamificación tiene un futuro prometedor ya que promueven la participación del alumnado y su deseo por aprender.  Se han desarrollado tres actividades de gamificación (trivial, Kahoot y Socrative) para el estudio de ciencias de la tierra. Se ha observado que los alumnos prefieren las actividades de gamificación con soporte informático ya que crean un ambiente divertido que fomenta la participación y motivación. Sin embrago, también generan un aumento en la competitividad y los resultados obtenidos no son tan altos como los esperados inicialmente.
La e-evaluación en el trabajo colaborativo en entornos virtuales: Análisis de la percepción de los estudiantes
Authors: Hernández Sellés Nuria , Muñoz Carril Pablo César , González Sanmamed Mercedes
Published: October 2018

La e-evaluación se ha convertido en un aspecto nuclear para las universidades que desarrollan sus programas educativos bajo entornos en línea, cobrando especial protagonismo en aquellas instituciones que utilizan con sus estudiantes el trabajo colaborativo como estrategia de aprendizaje.
En este marco, se analizan los resultados de un estudio basado en el método de encuesta, cuyo objetivo ha sido analizar las valoraciones del alumnado de magisterio derivadas del sistema de e-evaluación desarrollado en su experiencia de trabajo colaborativo en cinco asignaturas. Los datos evidencian la importancia que los estudiantes conceden al feedback del profesor, la necesidad de que la evaluación se centre tanto en procesos como en resultados y la pertinencia de desarrollar auto-evaluaciones y co-evaluaciones de carácter grupal.
Health risk of swimming pool disinfection by-products: a regulatory perspective
Authors: Pándics Tamás , Hofer Ádám , Dura Gyula , Vargha Márta , Szigeti Tamás , Tóth Erika
Published: October 2018

While disinfection of swimming pools is indispensable for microbiological safety, it may lead to the formation of disinfection by-products. Most studies agree that inhalation exposure is the predominant pathway of the associated health risks, but assumptions are based on concentrations measured in water and evaporation models. Pool water and air were sampled in 19 swimming pools. Trihalomethanes were detected in all sites; chloroform being the most abundant species. Concentrations ranged between 12.8–71.2 μg/L and 11.1–102.2 μg/m3 in pool water and air, respectively. The individual lifetime carcinogenic risk associated with chloroform in swimming pools exceeded 10−6 in all age groups for recreational swimmers and 10−5 for elite swimmers and staff, even if the pool complied with the national standards. Inhalation exposure was estimated and found to be the most relevant, however, different mass transfer models from water measurements significantly under- or overestimated the health burden compared to direct calculation from the concentration in air. The observed health risks call for defining regulatory values and monitoring requirement of indoor air quality in swimming pools.
Anammox start-up strategies: the use of local mixed activated sludge seed versus Anammox seed
Authors: Kocamemi Bilge Alpaslan , Dityapak Duygu , Semerci Neslihan , Keklik Esra , Akarsubası Alper , Kumru Mert , Kurt Halil
Published: October 2018

The start-up period of Anammox systems is still a big challenge due to the unavailability of large volumes of slowly growing Anammox seed locally in most countries. This study aims to evaluate the effects of seeding strategy on the start-up and enrichment period of Anammox systems by monitoring both process performance and microbial population dynamics. Two different seeding strategies, the use of mixed activated sludge culture from a local STP and the use of enriched Anammox culture transported from abroad, were comparatively studied in SBR systems operated for 410 days. The enriched Anammox seed from abroad inhibited seriously during transportation. Anammox activity re-started after 195 days' recovery period. An active Anammox culture was successfully enriched within 95 days from a local activated sludge source without seeding any Anammox. The Anammox population reached levels of 1011 copies/ng at the end of 410 days' enrichment period. Based on FISH, Ca. Brocadia anammoxidans and Ca. Scalindua species were dominant in the enriched culture. The maximum TNRR was observed as 430 mg N/day. DGGE analyses revealed a drastic change in the microbial community (56%) with Anammox enrichment. Phylogenetic analysis demonstrated a significant decrease in phylotype Proteobacteria and increase in phylotypes Planctomycetes, Chloroflexi and Acidobacteria with enrichment.
Cultural and spiritual life of workers nowadays
Authors: Hoang Thi Nga
Published: October 2018

The cultural and spiritual life of workers has positive changes in the past five years. However, in relation to other social groups, the cultural and spiritual life of workers still need to be analyzed, assessed and give more practical solutions. The writing- using secondary sources- focusing on analyzing the real situation of the workers’ cultural and spiritual life in recent years, suggesting practical solutions that contribute to the improvement workers’ life in the modernization & industrialization of the country.
Development of psychological technologies in sports practice
Authors: Voronov Nikolay Andreevich
Published: October 2018

It is said in the article that today's sport – one of the parties of our modern culture and public life of society which has the content, structure, regularities and mechanisms of manifestation. The show of sport attracts many million people. The sport is not only wrestling on arenas and stadiums, it is our way of life in which we compete every day, it is the sphere of formation of the personality and an image «I», areas where dreams and desires where everyone can find the place, most often the first experience of overcoming difficulties and a victory over yourself, is experience of victories and ability to work with them, it is one of the few types of modern activity where he it is possible to become the hero and a star in the period of youth of which all dream.
Reaction of immunity indicators to change in nutrition
Authors: Burikov Aleksandr Vladimirovich
Published: October 2018

The article presents the results of a complex study of the introduction of vitamin and microelement complexes with the pharmacological adaptogen on the immunological resistance of the young people. There is a more pronounced increase in the functional capacity of the organism under the influence of vitamin and microelement additives to food, especially in combination with the pharmacologically adaptogen, due to the positive effect of these complexes on the intensity of the exchange of trace elements, mainly iron, on hematopoiesis and immunological reactivity of the organism.
Even geographical lexis in the Alloyhovsky ulus toponymy of the Republic of Saha
Authors: Bagdaryyn Nurgun Siulbe uola
Published: October 2018

The subject of the study is the even layer in the ulus toponymy. The theme of geographical vocabulary of even origin is chosen. The work is carried out in order to identify the geographical appellative vocabulary of the even language with a comparative method, word-formation, structural, lexical-semantic analysis. As a result, the semantic correspondence of appellative vocabulary and place names with the types of geographical objects, features of the surrounding area and landscape is revealed. The author traces the borrowings of even geographical vocabulary to the Fund of the indigir dialect of the Yakut language. The materials of the study will be used in the preparation of a short toponymic dictionary.
Refolding and Activation from Bacterial Inclusion Bodies of Trypsin I from Sardine (Sardinops sagax caerulea)
Authors: Carretas-Valdez Manuel I. , Cinco-Moroyoqui Francisco J. , Ezquerra-Brauer Marina J. , Marquez-Rios Enrique , Quintero-Reyes Idania E. , Lopez-Zavala Alonso A. , Arvizu-Flores Aldo A.
Published: October 2018

Background:

Trypsin from fish species is considered as a cold-adapted enzyme that may find potential biotechnological applications. In this work, the recombinant expression, refolding and activation of Trypsin I (TryI) from Monterey sardine (Sardinops sagax caerulea) are reported.

Methods:

TryI was overexpressed in Escherichia coli BL21 as a fusion protein of trypsinogen with thioredoxin. Refolding of trypsinogen I was achieved by dialysis of bacterial inclusion bodies with a recovery of 16.32 mg per liter of Luria broth medium.

Results:

Before activation, the trypsinogen fusion protein did not show trypsin activity. Trypsinogen I was activated by adding 0.002 U of native TryI purified from the sardine pyloric caeca (nonrecombinant). The activated recombinant trypsin showed three times more activity than the nonrecombinant trypsin alone.

Conclusion:

The described protocol allowed obtaining sufficient amounts of recombinant TryI from Monterey sardine fish for further biochemical and biophysical characterization of its coldadaptation parameters.
Synthesis of Functionalized Magnetite Titanium Dioxide Nanocomposite for Removal of Acid Fuchsine Dye
Authors: Rahnama Sara , Shariati Shahab , Divsar Faten
Published: October 2018

Objective: In this research, a novel magnetite titanium dioxide nanocomposite
functionalized by amine groups (Fe3O4@SiO2@TiO2-NH2) was synthesized and its ability for
efficient removal of Acid Fuchsine as an anionic dye from aqueous solutions was investigated.

Method:

The core-shell structure of Fe3O4@SiO2@TiO2 was prepared using Fe3O4 as magnetic core,
tetra ethyl orthosilicate as silica and tetra butyl titanate as titanium source for shell. The synthesized
nanocomposites (particle size lower than 44 nm) were characterized by FT-IR, XRD, DRS, SEM and
TGA instruments. The various experimental parameters affecting dye removal efficiency were
investigated and optimized using Taguchi fractional factorial design.

Results:

The synthesized adsorbent showed the highest removal efficiency of Acid Fuchsine (99 %)
at pH= 3.5, without salt addition and during stirring at contact times less than 10 minutes. The study
of kinetic models at two concentration levels showed the fast dye sorption on the surface of proposed
nanocomposites with pseudo second order kinetic model (R2=1). Also, the fitting of Acid Fuchsine
sorption data to Freundlich, Langmuir and Temkin isotherms suggested that Freundlich model gave a
better fitting than other models (R2=0.9936, n=2).

Conclusion:

Good chemical stability, excellent magnetic properties, very fast adsorption kinetics
and high removal efficiency make the synthesized nanocomposite as a proper recoverable sorbent for
removal of Acid Fuchsine dye from wastewaters.
Ventricular Arrhythmias in Patients with Obstructive Sleep Apnea
Authors: Marinheiro Rita , Parreira Leonor , Amador Pedro , Mesquita Dinis , Farinha José , Fonseca Marta , Duarte Tatiana , Lopes Cláudia , Fernandes Andreia , Caria Rui
Published: October 2018

Obstructive Sleep Apnea (OSA) is a prevalent condition thought to increase in the future. Being mostly undiagnosed, the most serious complications are cardiovascular diseases, among which are arrhythmias. Controversy remains as to whether OSA is a primary etiologic factor for ventricular arrhythmias, because of the high incidence of cardiovascular comorbidities in OSA patients. However, there is mostly a strong evidence of a relation between OSA and ventricular arrhythmias. A few mechanisms have been proposed to be responsible for this association and some electrocardiographic changes have also been demonstrated to be more frequent in OSA patients. Treatment of OSA with Continuous Positive Airway Pressure (CPAP) has the potential to reduce arrhythmias and confer a mortality benefit.
Using Resonance Frequency Analysis to Compare Delayed and Immediate Progressive Loading for Implants Placed in the Posterior Maxilla: A Pilot Study
Authors: Juboori Mohammed Jasim AL , Attas Mohammed Ahmed AL , Gomes Raquel Zita , Alanbari Basma Fathi
Published: October 2018

Objective:

Implants placed in the posterior region of the maxilla have a high incidence of implant failure due to poor bone quality, especially when immediate implant loading is needed. Immediate Progressive Loading (IPL) can enhance bone quality and may offer an alternative solution when Immediate Implant loading is needed.

Methods:

Six patients (one male and five females; 34-62 years old) were included in this study. Twelve implants were inserted in the posterior region of the maxilla. Resonance Frequency Analysis (RFA) was performed at the time of implant placement and after 1, 2, 3 and 6 months. ISQ (Implant Stability Quotient) values were compared between the Delayed Loading (DL) group after 2 months and the Progressive Loading (PL) group and between different time points for each group.

Results:

At implant placement, the mean ISQ values for PL and DL implants were 63 and 57, respectively. One month after implant placement, the mean ISQ value for PL implants was 73.

Two months after implant placement, the mean ISQ value for PL implants was 75. Three months after implant placement, the mean ISQ values for PL and DL implants were 76 and 69, respectively. Six months after implant placement, the mean ISQ values for PL and DL implants were 79 and 76, respectively.

Conclusion:

Despite its limitations, this pilot study indicated that compared to DL, PL can enhance bone density and implant stability, resulting in greater early functionality and fewer surgery sessions.
The Anticancer Role of Omega-3 Polyunsaturated Fatty Acids was Closely Associated with the Increase in Genomic DNA Hydroxymethylation
Authors: Huang Qionglin , Mo Mingming , Zhong Yu , Yang Qingjin , Zhang Junjie , Ye Xiaoxia , Zhang Lijian , Cai Chun
Published: October 2018

Background:

Omega-3 polyunsaturated fatty acids (omega-3 PUFAs) have significant multiple antitumor
roles. However, whether epigenetic DNA hydroxymethylation enrolls in the anticancer process of omega-
3 PUFAs is still not clear yet.

Objective:

To expound the interaction between the anti-tumor role of omega-3 PUFAs and the DNA demethylation
pathway and thus provide a firm foundation for deepening our understanding on anticancer mechanism of
omega-3 PUFAs.

Methods:

Colorectal Cancer (CRC) model rats were induced to generate tumor by N-methyl-N-nitrosourea and
their counterparts treated with omega-3 PUFAs during the induction. The blood samples from different treatment
groups of rats [Normal Control group (NC), colorectal cancer model group (CRC) and omega-3 PUFAs Medication
Group (MG)] were used as experimental materials. Genomic 5-hydroxymethylocytosine (5hmC) content
was quantified using LC-MS/MS, and the expression of ten-eleven translocation dioxygenase 1 (TET1), catalyzing
the generation of 5hmC, was also evaluated by quantitative real-time PCR.

Results:

We observed lower tumor incidence and small tumor size in MG group when compared with CRC
group, supporting the effective anticancer role of omega-3 PUFAs. Due to the formation of CRC, 5hmC level
was dramatically dropped in CRC group when compared with the NC group. Notably, 5hmC percentage in MG
group remarkably increased close to NC group and was significantly higher than that in the CRC group. Consistent
alteration pattern of TET1 expressions in mRNA was also observed in the tested groups of rats.

Conclusion:

The anticancer effect of omega-3 PUFAs was positively correlated with global 5hmC accumulation
and TET1 expression, suggesting DNA hydroxymethylation pathway was factually involved in the anticancer
process of omega-3 PUFAs.
Molecular Studies on Novel Antitumor Bis 1,4-Dihydropyridine Derivatives Against Lung Carcinoma and their Limited Side Effects on Normal Melanocytes
Authors: Mohamed Magda F. , Ibrahim Nada S. , Elwahy Ahmed H.M. , Abdelhamid Ismail A.
Published: October 2018

Background:

Cancer is a complex genetic disease which is characterized by an abnormal cell growth,
invasion and spreading to other parts of the body. There are several factors that lead to cancer by causing DNA damage
and the impairment of its repair. Treatment of cancer using the chemotherapeutic drugs have adverse side effects
such as toxicity as they lose their specificity toward cancer cells and affect also normal cells. Moreover, the cancer
cells can resist the chemotherapeutic agents and make them ineffective. For these reasons, much attentions have been
paid to develop new drugs with limited side effects on normal cells and to diminish cancer resistance to drug chemotherapy. Recently, some 1,4-dihydropyridine derivatives were reported to act as Multi-Drug Resistance (MDR)
modulators that inhibit p-glycoprotein which is responsible for the inability of drugs to enter the cancer cells. Also
1,4-DHPs have antimutagenic properties against chemicals via modulating DNA repair when studied on drosophila.

Objective:

The objective of this study is the synthesis of bis 1,4-DHPs incorporating ester as well as ether linkages
and evaluate the anticancer activity of new compounds for synergistic purpose. Different genetic tools were used in
an attempt to know the mechanism of action of this compound against lung cancer.

Method:

An efficient one pot synthesis of bis 1,4-DHPs using 3-aminocrotononitrile and bis(aldehydes) has been
developed. The cytotoxic effect against human cell lines MCF7, and A549 cell lines was evaluated.

Results:

All compounds exhibited better cytotoxicity toward lung carcinoma cells than breast cancer cells. With
respect to lung carcinoma cell line (A549), compound 10 was the most active compound and the three other compounds
7, 8, and 9 showed comparable IC50 values. In case of breast cancer cell line (MCF7), the most active one
was compound 7, while compound 8 recorded the least activity.

Conclusion:

we have developed an efficient method for the synthesis of novel bis 1,4-dihydropyridine derivatives
incorporating ester or ether linkage. All compounds showed better cytotoxicity results against A549 than MCF7, so
that lung carcinoma cell line was chosen to perform the molecular studies on it. The results showed that all
compounds (7, 8, 9 and 10) caused cell cycle arrest at G1 phase. The molecular docking study on CDK2 confirmed
the results of cell cycle assay which showed good binding energy between the compounds and the active site of
enzyme indicating the inhibition of the enzyme.
Synthesis and Evaluation of Herbal Based Hair Dye
Authors: Pal Rashmi Saxena , Pal Yogendra , Rai A.K , Wal Pranay , Wal Ankita
Published: October 2018

Background:

Herbal based hair dyes are being preferred on large scale, due to the vast number of advantages it exerts to overcome the ill-effects of a chemical based hair dye. We have attempted to prepare and standardize this preparation to ensure its quality as well as stability aspects.

Objective:

The current research was aimed at the preparation of herbal hair dye and the evaluation of its various parameters as organoleptic, physico-chemical, phytoconstituents, rheological aspects, patch test and stability testing for its efficacy and shelf life.

Materials and Methods:

The herbal dye was prepared in-house according to the proposed composition, using all the natural ingredients. The dye was evaluated for its organoleptic, physico-chemical and stability parameters.

Results:

The parameters were found to be comparable and sufficient for the evaluation of herbal dye. The values of different evaluations justified the usage of the hair dye.

Conclusion:

Herbal based hair dye has been prepared and evaluated using the various parameters. It offers a natural alternate, which can be used, irrespective of any side effects. The results can be incorporated while developing the pharmacopoeial standards.
Internet-Delivered Acceptance and Commitment Therapy for Anxiety Treatment: Systematic Review (Preprint)
Authors: Kelson Joshua , Rollin Audrey , Ridout Brad , Campbell Andrew
Published: October 2018

BACKGROUND

Anxiety conditions are debilitating and prevalent throughout the world. Acceptance and Commitment Therapy (ACT) is an effective, acceptance-based behavioral therapy for anxiety. However, there are treatment barriers (eg, financial, geographical, and attitudinal), which prevent people from accessing it. To overcome these barriers, internet-delivered ACT (iACT) interventions have been developed in recent years. These interventions use websites to deliver ACT information and skill training exercises on the Web, either as pure self-help or with therapist guidance.

OBJECTIVE

This systematic review aimed to examine the therapeutic impact of iACT on all anxiety conditions.

METHODS

The EMBASE, MEDLINE, ProQuest Central, PsycINFO, Scopus, and Web of Science databases were searched up to September 2018. The titles and abstracts of remaining records after deduplication were screened by 2 authors with a total of 36 full-text articles being retained for closer inspection next to eligibility criteria. Empirical studies of all designs, population types, and comparator groups were included if they appraised the impact of iACT treatment on any standardized measure of anxiety. Included studies were appraised on methodological quality and had their data extracted into a standardized coding sheet. Findings were then tabulated, and a narrative synthesis was performed because of the heterogeneity found between studies.

RESULTS

A total of 20 studies met inclusion criteria. There were 11 randomized controlled trials (RCTs) and 9 uncontrolled pilot studies. Participants across all studies were adults. The anxiety conditions treated were as follows: generalized anxiety disorder (GAD), social anxiety disorder (SAD), illness anxiety disorder (IAD), and general anxiety symptoms, with or without comorbid physical and mental health problems. A total of 18 studies reported significant anxiety reduction after iACT treatment. This was observed in studies that delivered iACT with (n=13) or without (n=5) therapist guidance. The average attrition rate across all included studies during the active iACT treatment phase was 19.19%. In the 13 studies that assessed treatment satisfaction, participants on average rated their iACT experience with above average to high treatment satisfaction.

CONCLUSIONS

These findings indicate that iACT can be an efficacious and acceptable treatment for adults with GAD and general anxiety symptoms. More RCT studies are needed to corroborate these early iACT findings using empirical treatments in active control groups (eg, internet-delivered cognitive behavioral therapy). This would potentially validate the promising results found for SAD and IAD as well as address the full spectrum of anxiety disorders.
La opinión en textos con un enfoque interdisciplinar: propuesta de contexto y léxico ad hoc
Authors: Temesio Vizoso Silvana Grazia
Published: October 2018

El artículo aborda la cuestión de cómo determinar la polaridad u opinión en textos, particularmente en Twitter. El análisis se hace desde múltiples perspectivas: ética de la información, comunicación, ciencia de la información e informática, enfatizando en dos análisis que se complementan: el procesamiento de lenguaje natural y la organización del conocimiento. Se desarrolla un prototipo que propone anotar las palabras cargadas de opinión como los adjetivos y los adverbios contextualizadas por su núcleo: sustantivos y verbos respectivamente. Estos núcleos sirven también para modelar la terminología del dominio y se propone la creación de un lexicón ad hoc.
Gestor de contenidos de código abierto para archivos digitales sonoros que preservan materiales de investigación
Authors: Rodríguez Reséndiz Perla Olivia , Simonnot Joséphine , Abad Martínez Dafne Citlalli
Published: October 2018

Los institutos y centros de investigación generan una gran cantidad de documentos sonoros de origen digital como resultado de proyectos de investigación en ciencias sociales y humanidades. La acumulación de estos documentos digitales es un problema porque se carece de herramientas de preservación y el riesgo de pérdida es alto. Como una alternativa para preservar este tipo de documentos se presentan los alcances y funcionalidades de Telemeta, gestor de contenidos, para la preservación de contenidos sonoros.
A formação didática do docente universitário
Authors: Massa Monica de Souza , Teixeira Cristina Maria D´Avila
Published: October 2018

Este artigo pretende discutir os aspectos conjunturais subjacentes à formação do professor universitário, a partir da análise do Instrumento de Avaliação de Cursos de Graduação Presencial e a Distância, documento disponibilizado pelo Instituto Nacional de Estudos e Pesquisas Educacionais Anísio Teixeira (INEP). Resulta de recorte em pesquisa desenvolvida nos cursos de Análise de Sistemas e Sistemas de Informação da Universidade do Estado da Bahia (2013/2014). O documento, que esclarece os critérios de avaliação relativos aos cursos de graduação em organização didático-pedagógica, corpo docente e infraestrutura, foi analisado através da técnica de análise temática. Como resultado do estudo realizado, identifica-se a pouca importância conferida à prática docente no ensino superior e os problemas dela decorrentes, relacionados à identidade profissional e à sua formação pedagógica.
Universidades de classe mundial e a ideologia da excelência: tendências globais e locais
Authors: Thiengo Lara Carlette , Bianchetti Lucídio
Published: October 2018

Neste trabalho, que resulta de pesquisa de doutorado, analisa-se o modelo de Universidade de Classe Mundial (UCM), a partir das orientações dos Organismos Internacionais (OI), em especial o Banco Mundial (BM), e seus experts e ainda como esta concepção vem ganhando força em vários países, grupos e blocos, incentivando a promoção de programas, políticas e projetos, inclusive, no Brasil. Em termos metodológicos, utilizou-se a análise documental, considerando-se que a investigação sobre as tendências e manifestações da UCM pressupõe a compreensão da totalidade histórica e social. Conclui-se que o modelo de UCM, fundamentado pela Ideologia da Excelência, é uma tendência global que vem sendo utilizada como um arquétipo com o qual se induz à competitividade internacional e eleva-se ao paroxismo a diferenciação/hierarquização entre e intra instituições em diferentes escalas, bem como incita transformações na própria concepção de universidade.
Using and reusing coherence to realize quantum processes
Authors: Díaz María García , Fang Kun , Wang Xin , Rosati Matteo , Skotiniotis Michalis , Calsamiglia John , Winter Andreas
Published: October 2018

Coherent superposition is a key feature of quantum mechanics that underlies the advantage of quantum technologies over their classical counterparts. Recently, coherence has been recast as a resource theory in an attempt to identify and quantify it in an operationally well-defined manner. Here we study how the coherence present in a state can be used to implement a quantum channel via incoherent operations and, in turn, to assess its degree of coherence. We introduce the robustness of coherence of a quantum channel-which reduces to the homonymous measure for states when computed on constant-output channels-and prove that: i) it quantifies the minimal rank of a maximally coherent state required to implement the channel; ii) its logarithm quantifies the amortized cost of implementing the channel provided some coherence is recovered at the output; iii) its logarithm also quantifies the zero-error asymptotic cost of implementation of many independent copies of a channel. We also consider the generalized problem of imperfect implementation with arbitrary resource states. Using the robustness of coherence, we find that in general a quantum channel can be implemented without employing a maximally coherent resource state. In fact, we prove that every pure coherent state in dimension larger than 2, however weakly so, turns out to be a valuable resource to implement some coherent unitary channel. We illustrate our findings for the case of single-qubit unitary channels.
Multi-path Summation for Decoding 2D Topological Codes
Authors: Criger Ben , Ashraf Imran
Published: October 2018

Fault tolerance is a prerequisite for scalable quantum computing. Architectures based on 2D topological codes are effective for near-term implementations of fault tolerance. To obtain high performance with these architectures, we require a decoder which can adapt to the wide variety of error models present in experiments. The typical approach to the problem of decoding the surface code is to reduce it to minimum-weight perfect matching in a way that provides a suboptimal threshold error rate, and is specialized to correct a specific error model. Recently, optimal threshold error rates for a variety of error models have been obtained by methods which do not use minimum-weight perfect matching, showing that such thresholds can be achieved in polynomial time. It is an open question whether these results can also be achieved by minimum-weight perfect matching. In this work, we use belief propagation and a novel algorithm for producing edge weights to increase the utility of minimum-weight perfect matching for decoding surface codes. This allows us to correct depolarizing errors using the rotated surface code, obtaining a threshold of 17.76±0.02%. This is larger than the threshold achieved by previous matching-based decoders (14.88±0.02%), though still below the known upper bound of ∼18.9%.
Examination of the patients applying to the physical therapy unit of a hospital due to low back pain
Authors: PİRİNCCİ Edibe , KAYA Ferit , DEMİRPOLAT Eyyup
Published: October 2018

Introduction: This study
analyzes factors influencing low back pain in patients admitted to the physiotherapy
unit of an education and research hospital. Methods: The study
sample included 102 patients who applied to the physiotherapy unit and
volunteered to join the study. The data were collected using a 23-items
questionnaire created by the authors based on a review of the literature. The
data were entered into the SPSS Program For comparisons, p values below 0.05
were deemed to be statistically significant. Results: The mean
age of the participants was 46.7±14.4 years. By occupation, low back pain was
most common among housewives. Of the patients who suffered from lower back
pain, 57.8% were overweight or obese. Of those experiencing lower back pain,
73.5% were standing for long time periods, and 67.6% were lifting heavy loads.
Of the patients, 69.6% had lower back pain in their families, and 29.4% of the
family members with lower back pain were their mothers.Of the patients, 70.6% received drug therapy for the pain. The frequency
of low back pain among patients who did not receive drug therapy was higher
than that of the patients who received pain medications (p<0.05). Of the
patients who had low back pain attacks 11 times or more in a year, the
percentage of smokers was 66.7%, while this rate was 35.7% among nonsmokers
(p<0.05). The increase in low back pain with body mass index was not
statistically significant (p>0.05).

Conclusion: Patients
applied to the hospital due to low back pain report lifting heavy loads or
prolonged standing. Smoking increases the frequency of low back pain. Patients
with low back pain also tend to have family members with the condition. With
appropriate measures to reduce risk factors, the frequency of low back pain,
which hinders daily life activities, can be reduced.
CONDIÇÕES DE TRABALHO DOCENTE: A PRODUÇÃO ACADÊMICA BRASILEIRA DA ÁREA DA EDUCAÇÃO
Authors: Antonio Pereira Junior Edmilson , Fraga Vieira Lívia
Published: October 2018

Analisa-se a produção acadêmica brasileira da área da Educação sobre as condições de trabalho docente na educação básica, em artigos, teses e dissertações, totalizando 55 estudos evidenciados na literatura sobretudo a partir dos anos 2000. A área do conhecimento "Educação" se distribuiu em cinco subáreas, das quais a de "Ensino-Aprendizagem" foi a mais frequente. A variedade de itens utilizados para representar tais condições prejudica o entendimento similar entre os pesquisadores, o que dificulta a comparação entre os resultados encontrados nos estudos e a identificação de fatores associados.
Development of an energy- and water-saving manufacturing technology of brick products
Authors: Vlasova Marina , Márquez Aguilar , González-Molina Veronica , Trujillo-Estrada Ariadna , Kakazey Mykola
Published: October 2018

In the work, the carrying of realizing three problems in the manufacture of
brick products, namely, energy saving, water saving, and processing of
large-scale waste (ecological problem), are considered. Four types of bricks
have been obtained and investigated: red clay, red clay-milled cullet
mixture, red clay-milled basalt (tezontle) mixture, and red clay-milled
glass-milled tezontle mixture. To form the semi-finished products, water or
wet waste of activated sludge were added to the dry mixtures. It is
established that the presence of low-melting glass into double and triple
compositions reduces the sintering temperature of ceramic products down to
900-1000 ?C and sintering time to 8-12 h while maintaining good strength
properties of ceramics. This means that the energy-saving technology is
provided. The use of waste activated sludge (biowaste) with high water
content allows us to exclude the introduction of water into dry mixtures at
the stage of molding. This means that the water-saving technology is
achieved. The introduction of a different content of burnt out bio waste
contributes to the formation of brick products of different porosity.
Variations on mixtures compositions and sintering modes make possible to
synthesize ceramics of different applications: as a stone products, bricks
for external and internal walls, porous bricks, and a filtering ceramics.
Microstructure and phase composition of steatite ceramics sintered by traditional and spark plasma sintering
Authors: Terzic Anja , Obradovic Nina , Pouchly Vaclav , Stojanovic Jovica , Maca Karel , Pavlovic Vladimir
Published: October 2018

The influence of the sintering method on the mineral phase transformations
and development of the crystalline microstructure of steatite ceramics was
investigated. The steatite samples were fabricated from talc and bentonite as
low-cost raw materials. Feldspar and barium carbonate, as fluxing agents,
were altered in the steatite composition. Dilatometric analysis was applied
in the monitoring of the dimensional changes and thereby densification of
steatite during the traditional sintering (TS) procedure up to 1200?C. Spark
plasma sintering (SPS) method was used under the following sintering
conditions: 100?C/min heating rate, uniaxial pressure of 50 MPa; sintering
temperature 800?C/1 min or 1000?C/2 min. Crystallinity changes and mineral
phase transition during sintering were observed by X-ray diffraction
technique. Microstructural visualization of the samples and the spatial
arrangements of individual chemical elements were achieved via scanning
electron microscopy equipped with the EDS mapping. It was found that SPS
sintering facilitated all microstructural changes during high temperature
treatment and shifted them to lower temperatures. SPS treatment conducted at
1000?C resulted in maximum densification of the steatite powder compacts and
the formation stabilized protoenstatite structure.
Synthesis and characterization of Ag-8 %wt Cr2O3 composites prepared by different densification processes
Authors: Mansourirad Nima , Ardestani Mohammad , Afshar Reza
Published: October 2018

A novel Ag-8 %wt Cr2O3 composite prepared via powder metallurgy route. Silver
and chromium oxides were used as starting powders. The powder mixtures were
mechanically milled by a SPEX high energy mill for 5 h. Based on the
thermogravimetric analysis (TGA) and X-Ray Diffraction (XRD) results, the
milled powders were calcined in an argon atmosphere at 550?C. During
calcination, the silver oxide decomposed into silver. The results showed that
the Heckel equation was the preferred one for description the cold
compressibility of the powders. The calcined powders were consolidated by
Press-Sinter-Repress (PSR), Press-Sinter-Repress-Anneal (PSRA) and Spark
Plasma Sintering (SPS) processes. The Field Emission Scanning Electron
Microscope (FESEM) investigations showed a nearly dense microstructure of the
sintered samples. However, the hardness of the pressed-sintered-repressed
samples was 81 Vickers which was the highest among the processed specimen.
Furthermore, the flexural strength of the PSR and SPS processed samples were
231 and 255 MPa, respectively which were too higher than that of the annealed
specimens. The results confirmed the effect of microstructural parameters
such as Cr2O3 particle size and processing route on the mechanical properties
of the sintered composites.
Hume’s understanding of the relationship between scepticism and philosophy
Authors: Davidovic Aleksandra
Published: October 2018

In this article I explore how Hume?s views on the relationship between
scepticism and philosophy developed and matured throughout his philosophical
career. Hume?s first work, A Treatise of Human Nature, leaves open the
question of why would anyone pursue philosophy in light of the discovery that
sceptical arguments are irrefutable. What I aim to show is that, although
Hume?s attitude to scepticism and his own sceptical position remain
essentially unchanged over the years, An Enquiry Concerning Human
Understanding and the Dialogues Concerning Natural Religion, along with a
couple of his minor writings, contain interesting changes, additions and
improvements to his thinking about the way scepticism can inform our
philosophical enquiries. Only in his last work Hume unambiguously claims that
scepticism does have a positive and lasting influence on our philosophising,
and this influence consists in intelectual modesty and subject-matter
limitations whithin philosophical investigations.
A debate between Alimpije Vasiljevic and Milan Kujundzic Aberdar (1865-1873)
Authors: Milosavljevic Boris
Published: October 2018

In his lauding review of Dimitrije Matic?s (1821-1884) History of Philosophy
(largely based on ?. Schwegler), published in 1865 in the journal Vila,
started and edited by Stojan Novakovic (1842-1915), Alimpije Vasiljevic
(1831-1911) assessed the pattern of the book as one of the latest and best
in the field. In his critical reaction to Vasiljevic?s review, Milan
Kujundzic (1842-1893) challenged his assessment. For the generation of the
United Serbian Youth, Hegelianism was unacceptable for two reasons: because
of increasingly influential positivism (naturalism) and scientism, and
because of the strengthening of the ideology of Greater Germany with which
it was equated. Both Vasiljevic and Kujundzic were liberals. Their debate,
however, was harsh and long, and the intellectual public followed it with
?particular attention?. They polemicized about, inter alia, the actual
philosophical relevance of the issue of idealism vs. materialism. Even
though the debate showed inconsistencies and contradictions in
argumentation, it led to independence in problem formulation and solving.
Information Availability in Acquisition Decisions: The Role of Prior Relations and Rival Bidders
Authors: Smeulders Dieter , Dekker Henri C. , Van den Abbeele Alexandra
Published: October 2018

This study uses detailed survey data from key decision makers in acquiring firms to test the impact of information availability in corporate acquisitions on pre-acquisition valuation and post-acquisition performance. Our results provide support for the hypothesis that information constraints at the time of target valuation are associated with greater overpayment and weaker post-acquisition performance. Prior ties between firms are found to reduce information constraints to acquiring managers, and thereby reduce overpayment and increase post-acquisition performance. Bids by other potential acquirers are found to signal their private information about the target, providing a substitute for lacking information. This effect holds particularly for non-financial data, which are harder to obtain. These findings suggest that overpayment and underperformance can be prevented not only when an acquirer possesses more information, but also when in the absence of needed information, the presence of rival bidders signals their private information about the value of the target.
Cuestión de frontera. El desecho como resto y valor
Authors: Cortese Julia
Published: October 2018

La exforma es un ensayo de Nicolas Bourriaud que analizaaquellas producciones que tienen lugar en la frontera entrelo excluido y lo establecido. A la luz del arte contemporáneo,el autor recorre tiempos o momentos en la historia del arte ydel pensamiento, intelectuales, corrientes, artistas, en suma,movimientos que transitaron lo exformal al poner en crisisel Ideal.
Episodios de la cultura gráfica local
Authors: Allaltuni Zaira
Published: October 2018

Ilustrar e Imprimir. Una historia de la cultura gráfica en BuenosAires, 1830-1930 incluye ocho estudios desarrollados porinvestigadores de distintas disciplinas sobre episodios dela cultura gráfica local. Libros, publicaciones periódicasy álbumes ilustrados, afiches, mapas y tarjetas postalesfueron generados durante un período industrial signadopor profundos cambios culturales. En este marco, se focalizaen el análisis de los fines sociales, políticos y económicosque obraron en los procesos de producción de los objetosgráficos, lo cual implica una doble interpretación quesupone estudiar los sentidos culturales e históricos, asícomo los métodos de producción gráfica.
Digitalizados. La vida humana en un mundo algorítmico
Authors: Lanchares Vidart Solana
Published: October 2018

En La humanidad aumentada (2017), Eric Sadin nos da aconocer la culminación de una trilogía de ensayos en losque realiza un recorrido por el desarrollo histórico de latecnología. Analizará no solo los avances tecnológicosde cada tiempo, sino también los nuevos paradigmascognitivos que se desarrollaron a la par y los cambios queestos provocaron a nivel social. Más allá de este raccontohistórico, Sadin intentará abrirnos los ojos y corrernosde ese lugar común en el que todos sostenemos que latecnología ha venido a simplificar nuestras vidas.