bluuebunny/crossref_metadata_2025 huggingface dataset:
El pensamiento narrativo de Spinoza
Authors: Espinosa Luciano
Published: March 2018

Spinoza está lejos del llamado pensamiento narrativo y prefiere el conocimiento atemporal de la razón. Sin embargo, la complejidad de la vida humana requiere otras formas de aproximación que permitan entenderla en su particular y a menudo contingente contexto desde el punto de vista del sujeto. Por todo ello, el autor permite -aunque sea en segundo plano- un tratamiento flexible de los asuntos prácticos, lo que incluye diversos aspectos narrativos que preparan y extienden la racionalidad. Tal es el caso del estudio genealógico de los fenómenos, el debate político, los aprendizajes derivados de la experiencia, la educación, la biografía psicofísica, el uso de técnicas de sugestión y visualización, etc. Una vez más, se trata de sumar herramientas que permitan desarrollar una vida lúcida y dichosa.
Jorge Ortiz. Alquimia e imagen
Authors: Aguilar Restrepo Melissa
Published: March 2018

Sobre la pertinencia de examinar el trabajo del artista antioqueño Jorge Ortiz (1950) podría argumentarse, entre muchos otros motivos, la actualidad y eficacia simbólica tanto del tratamiento de lo fotográfico como del aparato conceptual que sirve de eje a su producción artística. Ortiz, experimental a un nivel como pocos dentro de su generación y erróneamente encasillado hasta hace no mucho como fotógrafo, ha especulado sin reservas sobre el medio mismo y sobre las nociones históricas y teóricas de la fotografía, subvirtiendo las lógicas convencionales del ejercicio en las que el fotógrafo es entendido como determinante y único controlador del proceso técnico (la fotografía como herramienta), para dar cabida a la del agente facilitador que media en una especie de alquimia regulada y en la que son copartícipes artista, tiempo y azar (la fotografía como concepto). Por otro lado, su trabajo, gracias a la relectura de la que ha sido objeto en la última década y que lo ha hecho imposible de ignorar como una de las producciones articuladoras más relevantes de la contemporaneidad artística en Colombia, demuestra con amplio margen su vigencia para permitirnos comprender las transformaciones del campo durante la segunda mitad del siglo xx.
Multitud y poder una aproximación naturalista en el Tratado político de Spinoza
Authors: Pizarro Suescum José Pedro
Published: March 2018

I. Los seres humanos deben ser concebidos, como cualesquiera otras cosas singulares, dentro del orden común de la naturaleza. Este naturalismo permite entender que la potencia y el derecho coinciden en una ecuación perfecta, de tal modo que no es preciso apelar al contrato para explicar la génesis del Estado. II. Como la potencia de los individuos coincide, asimismo, con el conjunto de relaciones que éstos son capaces de movilizar en su esencia y operación, el Estado se define como potencia de la multitud, es decir, como individuo compuesto capaz de constituir una unidad operativa. III. Tan pronto como todo orden humano es un orden de afectos, se entiende que los derechos no podrán conservarse más que por el mutuo afecto de los hombres. De ahí que todo Estado deba reinventar sus estructuras de continuo mediante la cooperación y la ayuda mutua entre los hombres.
Stalled European Integration, the Primordialization of Nationalism, and Autocratization in Macedonia between 2008 and 2015
Authors: Vangelov Ognen
Published: March 2018

In recent years, a kind of democratic failure appeared in the previously successfully democratized region of post-communist Europe. Problems of democratic deficit, and the deterioration of democracy have been increasingly observed in countries that had earlier been considered ‘success stories’ of democratization. One such case is Macedonia, a country that managed to separate peacefully from Yugoslavia amidst bloody civil wars in the neighborhood and managed to democratize and sustain democracy. Although Macedonia exhibited problems of ethno-national contestations during the period of transition, its democratic development continued in spite of the brief inter-ethnic conflict in 2001. If this success story had continued as predicted, it could be cited as a positive example of how democracy can be consolidated despite ethno-national contestations. However, from 2008 Macedonia began regressing democratically, gradually slipping into competitive authoritarianism. This paper examines the process of autocratization in Macedonia through an analysis of how an exogenous shock enabled internal formative events in that the ruling regime headed by Prime Minister Nikola Gruevski commenced a process of primordialization of nationalism. This in turn produced a severe intra-Macedonian cleavage, along with further strains in Macedonia’s inter-ethnic relations, giving an opportunity to the ruling party with its chief Nikola Gruevski to capture state institutions and consolidate a competitive authoritarian regime.
Multifractal analysis vehicle’s in-use speed profile for application in driving cycles
Authors: Puchalski A. , Komorska I. , Ślęzak M. , Wiśniowski P.
Published: March 2018

Time signals recorded by the on-board diagnostic system (OBD), describing the manner of vehicle’s movement in actual road
conditions show non-stationarity and non-linearity, as well as statistical multiscalarity. In practice, it means that the analysis of
registered time series requires modelling of non-linear phenomena. The aim of this study was to examine the nature of the vehicle
speed profile in actual road conditions with the method of multifractal analysis. A number of studies indicates that the driving tests
applied for many years have not been representative for the actual operating conditions of vehicles. For both the new Worldwide
Harmonised Light duty Test Cycle (WLTC), a worldwide harmonised procedure of light vehicle testing, as well as in actual urban
driving conditions along the measuring route, being subject to empirical research, confirmation of strong multifractal properties
of the recorded vehicle speed time series have been obtained.
Simulation-based analysis of the impact of vehicle mass on stopping distance
Authors: Luty W.
Published: March 2018

Results of experimental testing of motor truck tyres in dynamic braking conditions have been presented. With the measurement
results being used as an example, higher normal wheel loads have been shown to result in longer time of rise in the longitudinal
tangential tyre reaction force and in lower values of both the peak and sliding tyre-road adhesion coefficient. The data presented
include results of simulation of the process of emergency braking of a motor truck whose mass can vary within wide limits. It can
be seen from these results that an increase in the vehicle mass may considerably lengthen the vehicle stopping distance in emergency braking conditions
From "a priori" to "a posteriori" static stability of the slewing superstructure of a bucket wheel excavator
Authors: Bošnjak S. , Gnjatović N. , Milenović I.
Published: March 2018

The complexity of the slewing superstructure (SS) balancing problem derives from the changeability of its geometric configuration, the complexity of working conditions as well as multiple limitations of the possible set of solutions. Having in mind the fact
that the existing reference literature does not fully specify the procedure of static stability proof, the aforementioned procedure is
presented in detail for the first time in this paper. A major contribution is represented in the classification of the slewing superstructure models into two groups which were named: the ‘a priori’ model (designed image of the SS) and the ‘a posteriori’ model
(actual image of the SS). The fundamental stages of the ‘a posteriori’ model development method are presented in the paper. The
transformation and validation of the calculation model ‘a priori’ to the calculation model ‘a posteriori’ was conducted on the basis
of weighing results. A calculation of the basic parameters of the bucket wheel excavator (BWE) superstructure was conducted for
both analyzed models by using the in-house developed software. The ‘a posteriori’ models provide a reliable calculation of the
SS static stability and may be used not only for static stability proof of the machine as a whole, but also for load analysis of substructures and elements of BWE and related surface mining machines, such as spreaders. Besides that, the previously mentioned
models are of extreme importance for a successful and reliable exploitation and maintenence of the machine since they present
the basis for adjustment and control of limiting winch rope forces values, periodic control of mass and center of gravity position,
as well as for a possible reconstruction which would be conducted in order to realize better customization of the machine versus
operating conditions
A new assessment method of mechanism reliability based on chance measure under fuzzy and random uncertainties
Authors: Zhang L. , Zhang J. , Zhai H. , Zhou S.
Published: March 2018

The traditional reliability analysis methods based on probability theory and fuzzy set theory have been widely used in engineering
practice. However, these methods are unable directly measure the uncertainty of mechanism reliability with uncertain variables,
i.e., subjective random and fuzzy variables. In order to address this problem, a new quantification method for the mechanism reliability based on chance theory is presented to simultaneously satisfy the duality of randomness and the subadditivity of fuzziness in
the reliability problem. Considering the fact that systems usually have multilevel performance and the components have multimode
failures, this paper proposes a chance theory based multi-state performance reliability model. In the proposed method, the chance
measure is adopted instead of probability and possibility measures to quantify the mechanism reliability for the subjective probability or fuzzy variables. The hybrid variables are utilized to represent the random and fuzzy parameters, based on which solutions are derived to analyze the chance theory based mechanism reliability with chance distributions. Since the input parameters of
the model contain fuzziness and randomness simultaneously, an algorithm based on chance measure is designed. The experimental
results on the case application demonstrate the validity of the proposed method.
Modeling of railway system maintenance and availability by means of Colored Petri nets
Authors: Song H. , Schnieder E.
Published: March 2018

Prognostics and health management (PHM) technologies permit actionable information to enable proper decision-making for
improving systems’ performance. With the increasing requirements placed on the rail systems’ availability, better maintenance
decisions should be evaluated before practical application. The aim of this work is to build maintenance models and estimate
the performance of considered maintenance decisions regarding the rail system’s reliability and availability by means of Colored
Petri nets. As a high-level formalization method, Colored Petri nets provide different color sets, which are suitable to represent
different maintenance attributions. The maintenance models are evaluated at both the structure and parameterization levels. At
the structure level, the structure correctness of the maintenance models is evaluated by using the state space analysis. At the parameterization level, specific maintenance decisions are illustrated. With various maintenance parameters, comparisons of system
reliability and availability are made with the results obtained with the Colored Petri nets model.
Energy absorption capability numerical analysis of thin-walled prismatic tubes with corner dents under axial impact
Authors: Ferdynus M. , Kotełko M. , Kral J.
Published: March 2018

The paper presents results of a parametric study into energy absorption capability of thin-walled square section columns with
redrawn dents, subjected to axial impact compressive load. Thin-walled aluminum tubes with four dents in the corners were under
investigation. The varying parameters were the dent’s depth and distance of the dent to the base. The study was performed using
Finite Element numerical code. Three crashworthiness indicators were examined: peak crushing force, crash load efficiency and
stroke efficiency. The numerical results are shown in load-shortening diagrams, as well as diagrams and maps of crashworthiness
indicators. It was found, that the main factor influencing a crushing mode and, subsequently, energy absorption capability, is a
dent depth. The dent distance from the base is of less importance. Also a position of a dent, either at the bottom, or at the top base
(the load application point) does not influence the crushing behavior significantly. For the deepest dents the relative increase of
crash load efficiency (CLE) amounts 25% in comparison with the column without dents.
A multi-stage risk-adjusted control chart for monitoring and early-warningof products sold with two-dimensional warranty
Authors: Dong F. , Liu Z. , Wu Y. , Hao J.
Published: March 2018

Warranty claims data contain valuable information about the quality and reliability of products. The monitoring and early-warning of warranty claims data are of great significance to the manufacturer by identifying and solving the emerging quality or reliability problem as soon as possible. However, though it has been used widely in the automobile industry, there are no studies that
have been carried out on the monitoring and early-warning of claims data for products sold with two-dimensional warranty. In
order to fill this gap, fitting the two-dimensional warranty claims data with accelerated failure model (AFT), a multi-stage riskadjusted control chart is proposed by this paper, for which a reasonable product sales tracking time and a monitoring time are
suggested to reduce the influence of sales delay and fluctuating claim rates. Comparing with traditional Cumulative Sum Control
Chart (CUSUM), the applicability and availability of the proposed model are demonstrated in the final.
The influence of selected factors on the failure rate of the water pipelines located on t he area of the impact of mining tremors
Authors: Kilian-Błażejewska E.
Published: March 2018

The article presents the influence of the selected factors, including mining tremors, described by the parameter PGVHmax on the
failure rate of the water distribution pipelines. In created multiple regression models, the following independent variables were
used: diameter and material from which the pipes were made, operation time without failure, the age of pipes, the value of pressure
and PGVHmax. The values of PGVHmax in places with damaged water pipelines were determined by constructed the seismic wave
propagation models. The analysis was carried out for a random sample of all water pipelines and extracted from this sample new
groups: steel and gray cast iron pipes, their diameters, diameters and materials, and their construction time.
Stable and unstable milling process for nickel superalloy as observed by recurrence plots and multiscale entropy
Authors: Weremczuk A. , Borowiec M. , Rudzik M. , Rusinek R.
Published: March 2018

This paper discusses the stability of high-speed machining processes. The problem of harmful vibrations can usually be detected
based on measured signal forces. Nevertheless, the chatter effect may be unrevealed and hence some alternative approaches of
signal monitoring must be taken to detect it. In the discussed case of machining, process stability is determined by means of stability diagrams. The measured milling force components are investigated by various signal analysis methods. In addition to this, the
analysis also uses recurrence plots, recurrence quantifications, composite multi-scale-entropy and as well the statistical approach.
Results obtained by the different methods are presented and discussed.
Spatial analysis of orchids diversity unveils hot-spots: The case of Zante Island, Greece
Authors: Martinis Aristotelis , Chaideftou Evgenia , Minotou Charikleia , Poirazidis Κonstantinos
Published: March 2018

The current study aims to analyze the ecological niche and mapping the distribution of species belonging to Orchidaceae family, in Zante Island and to determine hotspots at sites of high species richness. 967 observations were recorded into 110 tracks in 2015 and 120 tracks in 2016, where 47 orchid species were identified belonging to 9 genera. Using Maxent, the ecological niche of each species was analyzed and habitat suitability map was created using 12 environmental parameters. The suitability maps were transformed into a binary format according to the threshold “10th percentile training presence” and the transformed maps used to compute hot-spot regions by applying the SMD toolbox using the software ArcGIS. Zante Island is characterized by remarkably high orchid species richness since the synthetic model indicates presence of at least 10 species for the 53.2% of the island area. Topography, geology and landscape openness are determining factors for orchids’ diversity conservation. Altitude is the determining factor of differentiation in species distribution. Hydro-lithology was the following most significant interpreting parameter. The mapping analysis of species abundance units revealed that 12.5% of the island surface could be characterized as hotspots of high value for the conservation of orchid diversity.
A comparative analysis of generic prescribing patterns among teaching and non-teaching clinicians in Nellore, India
Authors: Choudary Gorantla Naveen , Penupothu Sree Nagamani
Published: March 2018

Background: The aim was to study the prescribing patterns of clinicians working in two different settings i.e. Teaching clinicians (clinicians working in teaching hospital) and Non-teaching clinicians (clinicians involved only in private practice).Methods: A comparative cross sectional study was carried out for a period of 6 months in two settings. The study is confined to teaching clinicians comprising of qualified medical practitioners in ACSR Government Medical College (ACSR GMC) and Non-teaching clinicians of qualified medical practitioners in private health sector (PMPs). 450 prescriptions were collected from clinicians belonging to various departments of ACSR GMC and 450 prescriptions from private practitioners of Nellore city. Data was coded and entered in MS Excel. Data was analyzed on EPI INFO version 3.5.4.Results: In this study it was found that teaching clinicians prescribed 146 (12.85%) drugs by generic name, whereas non-teaching clinicians prescribed 112 (8.75%) drugs by generic name.Conclusions: The findings of the present study indicate that the drugs prescribed by the generic names were remarkably less in both teaching and non teaching clinicians. This indicates a need for improving the generic prescribing patterns in both the settings.
Health seeking behaviour in pulmonary tuberculosis: a cross sectional study
Authors: J. Jebamalar , Senthilkumar Priya , Ramola Mary
Published: March 2018

Background: Health seeking behaviour has been identified as a complex and dynamic process which influences disease burden of tuberculosis. The present study aimed to study health seeking behaviour among pulmonary tuberculosis patients in a metropolitan city and to assess diagnostic and treatment delays and their determinants.Methods: A cross sectional study was conducted among newly diagnosed pulmonary tuberculosis patients registered for intensive phase of Category 1 ATT during the study period in Zone VIII of Chennai Corporation. The sample size was 197. The study was conducted over a period of one year from September 2015 to August 2016. A standardized WHO interview schedule on diagnostic delay was used for the study.Results: Patients sought healthcare for more severe symptoms like hemoptysis (delay of 38 days) earlier than for cough (delay o- 8 days). Other reasons for delay in seeking care were hope of self-resolution, financial constraints, fear of what the diagnosis would be, incompatible timings etcetera. The total mean delay from onset of symptoms till start of treatment was around 47 days, out of which the patient delay was 42 days. Factors significantly associated with delay included smoking, age more than 35 years and not approaching healthcare facilities first.Conclusions: An unacceptably high patient delay is the major contributor to total delay in the diagnosis and treatment of pulmonary tuberculosis patients. There is increased odds of delay among smokers compared to those who have never smoked. So smokers may be added to the high risk group for suspicion of tuberculosis for fast tracking of diagnosis and treatment. Furthermore, methods to curb over the counter medications should be explored.
Nutritional status of the pre-school children in UHTC area of Santhiram Medical College, Nandyal, Kurnool district
Authors: Ebenezer B. S. Isaac , Sushma Marupuri , Pasha M. A. Mushtaq , Fatima Afsar , Veereshappa D. K.
Published: March 2018

Background: Malnutrition is one of the major problems in the world which suffers middle income countries in the world, malnutrition is mainly of two types over weight and underweight, the present topic is concerned to the underweight of the children among the age group between 3 yrs to 6 yrs. The aims and objectives of the study were to assess the nutritional status of children among 3-6 yrs in UHTC area of SRMC Nandyal and to identify the influence of education, occupation, and socio economic status on the nutritional status of preschool children.Methods: Community based on cross sectional study. Sampling method used is 4pq/l2. Sample size was 210.Results: Total numbers of participants in the study are 210 members. 58% are males and 42.4% are females. Among the participants 42.4% fathers and 53.8% mothers are illiterates who occupy the majority. In occupation majority of the fathers and mothers are working as unskilled labour i.e. 61.4% and 53.3%. Among the participants majority of them belong to class IV i.e. 48.6%. When we see the grading of malnutrition 51% of them are moderately malnourished. Significance difference has been observed among the educational status of the mother and the nutritional status of the baby.Conclusions: In the present study most the children malnourished are boys. Education of mother played major role in degree of malnutrition higher the educational status lower the malnutrition.
Cutaneous manifestations of systemic lupus erythematosus
Authors: D. Nithya Gayathri Devi , P. Sarawathy , S. Kopika
Published: March 2018

Background: SLE is a systemic autoimmune disorder associated with polyclonal activation and interplay of genetic, environmental and hormonal events. The aim of the study was to study the incidence of mucocutaneous spectrum, precipitating factors, HPE, immunofluorescence and lab data.

Methods: Prospective cohort study. 100 SLE patients attending MMC from August 2007 to September 2009 are included in study. Detailed history, investigations and 2 years follow up were done.

Results: ACLE lesions were seen in 50% patients. Sunlight was the most common precipitating factors [55%]. Mucocutaneous lesions are seen in 45%. Fever is the most common systemic symptom in 45.45%. Photosensitivity is seen in 98% of patients. DLE lesions are seen in 83.66% of patients.98.5% of histopathology correlates with classical SLE.

Conclusions: Most of the results correlate with previous studies with few rare observations. Incidence of SLE is less compared to the Western part of world which may be due to the genetic and environmental factors. Photosensitivity being the most common symptom and sunlight being the most common exaggerating factor in our study may be due to the unprotected environmental exposure. Age, sex, ethnic factor with genetic predisposition are the main modifying factors of the various presentation of the disorder.
Nível de fluoretação na água de abastecimento de Passo Fundo
Authors: Manjabosco William Cardoso , Leite Françoise Van de Sande , Rigo Lilian
Published: March 2018

A fluoretação da água de abastecimento é uma das principais medidas preventivas de saúde pública para controle de cárie dentária. O objetivo do presente trabalho foi conhecer o nível de fluoretação da água de abastecimento da cidade de Passo Fundo. O presente trabalho possui uma abordagem quantitativa, cujo delineamento foi transversal e teve como objetivo verificar os níveis de fluoretação da água de abastecimento da cidade de Passo Fundo, Rio Grande do Sul, Brasil. Os dados foram coletados de relatórios públicos da Corsan, constando os valores mínimos, máximos e médios de flúor na água, nos anos de 2014 e 2015 totalizando 72 amostras. As avaliações consideradas inadequadas não ultrapassaram 5% do total de análises realizadas. Concluindo que a média da concentração de flúor apresentou-se de acordo com a legislação vigente durante os dois anos pesquisados.
Postcard Transfer across the Iron Curtain: Tourism and Transnational Exchanges in Socialist Romania during the 1960s to 1980s
Authors: Stefan Adelina
Published: March 2018

The article examines the transfer of postcards across the Iron Curtain against the backdrop of international tourism in socialist Romania. In the 1960s, socialist Romania began to develop international tourism, especially with the capitalist West, because it wanted to acquire hard currencies and to improve its external image. Although the success of international tourism was short-lived, it sparked a movement of people, ideas and images across the Iron Curtain. As photos were more difficult to be carried out across the border – the law in socialist Romania required that films be developed in the country – postcards provided a means to personalize vacations in Romania, especially in the 1980s when restrictions became tighter. When sent from the capitalist West to Romania, postcards embodied the very image of the ‘West’, which the majority of socialist Romania’s citizens could not easily visit.
Uranium Recovery from Aqueous Solutions Using Amidoxime Modified Cellulose Derivatives. II. Uranium Uptake Behavior of Amidoximated Ethyl Cellulose
Authors: Pekel Bayramgil Nursel , Şener Başarır Seyhan
Published: March 2018

Amidoxime modified ethyl cellulose (EC-g-AO) was used for the recovery of uranyl
ions from aqueous solutions by a complexation process.  Adsorption trials were carried out in
different concentrations of UO22+
solutions (100 – 1000 mg/L) and at temperatures ranging from 25 to 50°C. The kinetics and the
thermodynamics of the adsorption of uranyl ions (UO22+)
by EC-g-AO were investigated. The
adsorption capacity was found as 240 mg UO22+/g dry
copolymer. The thermodynamic parameters for the interaction of UO22+
with EC-g-AO were calculated
from thermodynamic relations. Calculations showed that adsorption occurred through
strong electrostatic interactions with an enthalpy of -23.6 kJ/mol. The
desorption of UO22+ was investigated by desorption agents
like EDTA, HCl, NaHCO3, and NaOH. 52 % of desorption yield was found
for NaHCO3.
Quantitative Structure Activity Relationship (QSAR) and Molecular Docking Study of Some Pyrrolones Antimalarial Agents against Plasmodium Falciparum
Authors: Shehu Zaharaddeen , Uzairu Adamu , Sagagi Balarabe
Published: March 2018

The increase in multidrug resistance
malaria cases necessitates the need to search for new cost effective drugs.
QSAR and molecular docking studies were performed on a data set of forty nine Pyrrolones antimalarial agents
against Plasmodium falciparum. Forty two molecules were used as training set
and seven as test set. The molecular descriptors were obtained by Density
Functional Theory (DFT) (B3LYP/6-31G**) level of calculation. The QSAR model
was built using Genetic Function Algorithm (GFA) method. The model with the
best statistical significance (N = 42, R2ext = 0.700,
R2 = 0.933,
R2a = 0.916,
Q2cv = 0.894,
LOF = 0.417, Min expt. error for non-significant LOF (95%) = 0.250 was selected. The docking experiment
was carried out using AutoDock Vina of PyRx and Discovery Studio Visualizer. Docking
analysis revealed that three of the
studied compounds with binding affinity values of -10.7 kcal/mol, -10.9
kcal/mol and -11.1 kcal/mol possess higher potency than standard antimalarial
drugs with binding affinity of values of -8.8 kcal/mol, -9.5 kcal/mol and -9.0
kcal/mol. It is envisioned that the
wealth of information provided by the QSAR and molecular docking results
in this study will offer important structural insights for further laboratory
experiments in the future design of novel and highly potent antimalarial from Pyrrolones.
Microwave-Assisted Synthesis and Biological Evaluation of Some Coumarin Hydrazides
Authors: YILMAZ Fatih , FAİZ Özlem
Published: March 2018

In this work, 15 different coumarin hydrazides were successfully synthesized
and screened for their antioxidant and antilipase activities. To do this,
firstly, salicylaldehyde derivatives and 2,2-dimethyl-1,3-dioxane-4,6-dione
(Meldrum's Acid) were reacted in ethanol in the presence  of catalytic amount of pyridine to obtain
coumarin-3-carboxylic acid derivatives (1a-e). Then, these compounds
were treated with benzotriazole in dichloromethane by using thionyl chloride to
synthesized benzotriazole derivatives (2a-e).
Then, compounds 2a-e were reacted
with three commercial hydrazides (nicotinic hydrazide, benzhydrazide and
phenylacetichydrazide) in ethanol by using microwave irradiation and
conventional heating procedures to obtain final products (3-5a-e). Finally, these compounds were tested for their anti-oxidant
and anti-pancreatic lipase activities. The structure of newly synthesized
compounds was identified by 1H NMR, 13C NMR and elemental
analysis data.
Pensamiento crítico, conciencia cultural y tecnología: actividades para cursos de español como L2
Authors: Balestra Alejandra , Gasca Jiménez Laura
Published: March 2018

El objetivo de este artículo es describir el diseño de materiales apropiados para la construcción del conocimiento sociocultural y crítico en dos cursos de español como L23 en una universidad urbana de Estados Unidos. Este trabajo es el resultado de las investigaciones sobre el diseño y desarrollo de materiales apropiados para estudiantes de segunda lengua que se ha llevado a cabo en los últimos años en el Departamento de Estudios Hispánicos de la Universidad de Houston. Los materiales se diseñaron y desarrollaron según los postulados teóricos de la pedagogía crítica, el desarrollo del pensamiento crítico y la conciencia social crítica, y se implementaron mediante una serie de herramientas digitales que permitieron que todos los cursos, presenciales y en línea, se beneficiaran de los materiales. Para el presente trabajo se realizó una selección de ejemplos y se les hizo un breve análisis cualitativo a las respuestas de los estudiantes de los cursos seleccionados. El análisis de los datos permite observar que los aprendientes fueron capaces de expresar sus puntos de vista de manera crítica, realizar comparaciones entre su propia cultura y experiencias y la cultura y experiencias de la lengua meta, llevar a cabo investigaciones y desarrollar sus propias conclusiones a partir de los materiales didácticos desarrollados.
Modelación del crecimiento de Caesalpinea violacea (Mill.) Standl en la Empresa Agroforestal (EAF) Guanahacabibes, Cuba
Authors: Palacios-Velázquez Claridad , Rodríguez-García José Carlos , Barrero-Medel Héctor , Pérez-Lazo Yamila
Published: March 2018

En este trabajo se ajustó un modelo de crecimiento para Caesalpinea violácea (Mill.) Standl, en la Empresa Agroforestal Guanahacabibes. La muestra estuvo conformada por 60 parcelas circulares  de 500 m2  de un corredor de C. violacea con 6 mediciones del año 2010 y consecutivas a partir, 2012-2016 además de 15 mediciones de plantaciones de esta especie del inventario forestal para la ordenación forestal en la empresa de manera que abarcasen todas la edades de la especie en plantación. Se analizaron dos modelos, el de Shumacher y el de Chapman-Richard, se usó como variable predictora la edad y para el ajuste la regresión lineal. La variable altura domínante (Ho) fue la indicadora del sitio a partir de la cual se obtuvieron los modelos de crecimiento de la masa, del diámetro medio, de la altura media y el área basal por hectárea. El sistema de curvas de índices de sitio lo conformaron seis calidades, fijadas a la edad de 20 años para los valores 11, 14, 17, 20, 23 y 26 m de altura dominante.
Transformación genética de Chlorella sorokiniana mediada por Agrobacterium tumefaciens
Authors: Gómez-Espinoza Olman , Garro-Monge Giovanni , Peraza Johnny , Núńez-Montero Kattia , Meneses-Montero Karla , Guerrero-Barrantes Maritza
Published: March 2018

Las microalgas se han convertido en una plataforma viable para numerosas aplicaciones biotecnológicas como la producción de biocombustibles, vitaminas, carotenoides, enzimas, farmacéuticos y proteínas recombinantes. Dentro de este grupo, Chlorella sorokiniana tiene los requerimientos para convertirse en un microorganismo industrial, gracias a su habilidad de soportar considerables fluctuaciones de temperatura, pH y salinidad. En el presente estudio, C. sorokiniana fue utilizada para determinar las condiciones óptimas de transformación a mediante Agrobacterium tumefaciens. Se determinó que una densidad bacteriana de OD600 = 1.5, 3 días de co-cultivo a 24°C en un pH de 5.6, 150 mM de acetosiringona y dos días de recuperación post co-cultivo son las condiciones óptimas para la transformación de C. sorokiniana.
Programación: la nueva alfabetización. Introduciendo a la programación a niñas y niños en el Parque La Libertad
Authors: Arias Méndez Esteban , Pereira Carpio Gabriela
Published: March 2018

Aprender a programar computadoras se considera por muchos como el nuevo aprender a leer y escribir del siglo 21. Nunca como antes ha habido tantas herramientas disponibles para facilitar el aprendizaje en general y en particular de la programación. En el Parque La Libertad ubicado en Desamparados, en medio de comunidades con gran vulnerabilidad social, se han impartido talleres experimentales para enseñar programación a niños y niñas utilizando una plataforma más interactiva y de bajo costo llamada Arduino para facilitar la comprensión de los conceptos. Recientemente se han buscado alternativas para facilitar este trabajo para los clubes de programación que se imparten en el Parque. El impacto alcanzado hasta ahora en más de 200 niños que han participado en diversas actividades ha sido positivo. Se espera poder mejorar el desarrollo metodológico desarrollado para ampliar y potenciar el beneficio de más niñas y niños de la localidad. 
SOCIJALNO POŽELJNO ODGOVARANJE I STRUKTURA LIČNOSTI – DIMENZIONALNA I TIPOLOŠKA PERSPEKTIVA
Authors: Oljača Milan , Branovački Bojan , Sadiković Selka
Published: March 2018

Prvi cilj ovog rada jeste da ispita odnos socijalno poželjnog odgovaranja (SPO) sa ARC tipologijom (Asendorpf-Robins-Caspi), koja polazi od pretpostavke o tri tipa ličnosti: rezilijentnom, hiperkontrolisanom i hipokontrolisanom i testira hipotezu o povišenim skorovima na SPO kod tipa rezilijentnih. Drugi cilj ovog rada je da ispita relacije SPO sa sedam bazičnih dimenzija ličnosti. U istraživanju je učestvovalo 1322 ispitanika (51.7% ženskog pola), starosti od 18 do 77 godina (AS = 33.63). Primenjena je IPIP simulacija skale Malo verovatnih vrlina (Mvv), kao upitnička operacionalizacija SPO, i skraćena verzija upitnika Velikih Pet plus dva, koji operacionalizuje sedam leksičkih dimenzija ličnosti u srpskom jeziku. Analiza latentnih klasa je sprovedena u zajedničkom prostoru dimenzija VP+2 i Mvv. Analizom su identifikovana tri tipa ličnosti: neadaptirani, rezilijentni i suzdržani. Rezultati idu u prilog pretpostavkama o relacijama SPO i tipova ličnosti, pri čemu tip rezilijentnih postiže umereno povišene skorove na SPO, tip suzdržanih prosečne skorove, dok tip neadaptiranih postiže umereno snižene skorove na SPO. Kako bi se ispitale relacije SPO sa dimenzijama ličnosti primenjena je univarijatna analiza kovarijanse, uz kontrolu pola, starosti i obrazovanja. Rezultati potvđuju nalaze prethodnih istraživanja o relacijama SPO sa dimenzijama ličnosti iz perspektive Petofaktorskog modela, ali takođe ukazuju na veliki značaj evaluativnih dimenzija za razumevanje SPO, koje su uz Savesnost i Ekstraverziju najbolji prediktori SPO.
Whole Genome Transcriptome Analysis of the Association between Obesity and Triple Negative Breast Cancer in Caucasian Women
Authors: Mamidi Tarun , Wu Jiande , Tchounwou Paul B. , Miele Lucio , Hicks Chindo
Published: March 2018

Background: Triple negative breast cancer (TNBC) is the most aggressive form of breast cancer with poor outcomes. The molecular basis of TNBC remains poorly understood. The objective of this study was to explore the relationship between obesity and TNBC in premenopausal and postmenopausal Caucasian women using whole genome transcription profiling. Methods: We compared gene expression levels of tumor samples drawn from normal weight, overweight and obese in pre and postmenopausal women diagnosed with TNBC. We performed hierarchical clustering to assess similarity in patterns of gene expression profiles, and conducted network and pathway analysis to identify molecular networks and biological pathways. Results: We discovered gene signatures distinguishing normal weight from obese, normal weight from overweight and overweight from obese individuals in both premenopausal and postmenopausal women. The analysis revealed molecular networks and biological pathways dysregulated in response to obesity. Among the discovered pathways included the unfolded protein response, endoplasmatic reticulum stress, B cell receptor and the autophagy signaling pathways in obese premenopausal women and the integrin, axonal guidance, ERK/MAPK and Glutathione biosynthesis signaling pathways obese postmenopausal women. Conclusions: The results suggest that both overweight and obesity are associated with TNBC, highlighting the need for conformation of these results in independent studies.
Nutritional Anaemia and Obesity in the Eastern Mediterranean Region: The Protective Role of Breastfeeding for Two Years
Authors: Abul-Fadl Azza , Tawfik Afaf , Al-Jawaldeh Ayoub
Published: March 2018

Background: The preexistence of obesity with nutritional anaemia is becoming an increasing problem in the Eastern Mediterranean Region (EMR). Much controversy exists around the role of continued breastfeeding in alleviating the health and survival consequences of these problems in the region. Aim: To examine trends and relationships of nutritional anaemia (NA) in women and children under-five years of age (CU5) with obesity and breastfeeding practices in the EMR. Methods: Data from regional database banks of WHO and UNICEF for anaemia in pregnant and non-pregnant women and CU5 from 22 countries in EMR were retrieved, compiled, and statistically analyzed. Breastfeeding indicators for timely first suckle (TFS), exclusive breastfeeding (EBF) and continued breastfeeding for 12 (BFC12) and 24 months (BFC24), low-birth-weight (LBW), stunting, overweight, total fertility rates (TFR) and mortality rates (MR) were correlated with nutritional anaemia and analyzed by income groups into 5 low income countries (LIC), 11 middle income countries (MIC) and 6 high income countries (HIC). Results: Trends in mean prevalence of anaemia in women showed a concave curve increasing after a short decrease in the early 2000 in all income groups (P > 0.05). Trends in anaemia in the CU5 exhibited a steep decrease from a mean of 52.59 ± 16.4 in 2000 to 37.3 ± 14.9 in 2016 at P < 0.002, the steep decline was significant in HIC (P < 0.01) and MIC (P < 0.02), but not for LIC (P > 0.05). Anaemia prevalence in women and CU5 was significantly correlated to LBW, stunting, and with overweight and obesity in adults but negatively in CU5. All age specific MRs were highly correlated with anaemia in pregnant, non-pregnant and CU5 at P < 0.001 and TFR at P < 0.05. BFC for shorter durations was negatively correlated with anaemia in pregnant women (r-0.5) at P < 0.05 and was positively correlated in MIC and HIC. In non-pregnant women, BFC12 and BFC 24 correlated positively with anaemia prevalence in all three income groups at P < 0.01. Conclusions: Completing optimal breastfeeding for two years should be promoted to protect women and CU5 from anemia and obesity. Nutritional anemia during pregnancy increases regional rates of LBW, stunting and mortality. Spacing out births by encouraging longer duration of breastfeeding, to replenish iron stores, can help alleviate many of the health and nutritional problems in the region.
Financial Inclusion in Bangladesh: Policy Recommendations for Modified Unit Banking System
Authors: Omar Khayum Hossain Mohammed , Tasneem Noshin
Published: March 2018

The financial inclusion, including all the people with the finance, is very concerned issue all over the world where Bangladesh is also trying to include all the people with the finance. Bangladesh lies in such a group of countries where only 17.6% - 38.6% adults are presently under the reach of the formal financial services. This is because the present banks and other formal financial modes consider the outcome and profitability in a way that, the rural and non-developed areas are always out of the consideration. But these areas consist of the most population of Bangladesh. And only then financial inclusiveness will be successful in Bangladesh when people from these regions will be under formal financial consideration. The paper seeks for a solution to the issue and presents the Unit Banking System as a probable way towards financial inclusion. For implementing the system in Bangladesh, the system needs a slight modification to cope in Bangladeshi economic condition and address the specific needs without hampering the surroundings. Considering all these, the paper shows the status, problems and key points of financial scenario of inclusion in Bangladesh and shows policy for a Modified Unit banking System.
S-Phase Synchronization Facilitates the Early Progression of Induced-Cardiomyocyte Reprogramming through Enhanced Cell-Cycle Exit
Authors: Bektik Emre , Dennis Adrienne , Pawlowski Gary , Maleski Danielle , Takahashi Satoru , Laurita Kenneth R. , Deschênes Isabelle , Fu Ji-dong
Published: March 2018

Direct reprogramming of fibroblasts into induced cardiomyocytes (iCMs) holds a great promise for regenerative medicine and has been studied in several major directions. However, cell-cycle regulation, a fundamental biological process, has not been investigated during iCM-reprogramming. Here, our time-lapse imaging on iCMs, reprogrammed by Gata4, Mef2c, and Tbx5 (GMT) monocistronic retroviruses, revealed that iCM-reprogramming was majorly initiated at late-G1- or S-phase and nearly half of GMT-reprogrammed iCMs divided soon after reprogramming. iCMs exited cell cycle along the process of reprogramming with decreased percentage of EdU+/αMHC-GFP+ cells. S-phase synchronization post-GMT-infection could enhance cell-cycle exit of reprogrammed iCMs and yield more GFPhigh iCMs, which achieved an advanced reprogramming with more expression of cardiac genes than GFPlow cells; however, S-phase synchronization didn’t enhance the polycistronic-MGT reprogramming, in which cell-cycle exit had been accelerated. In conclusion, post-infection synchronization of S-phase facilitated the early progression of GMT-reprogramming through a mechanism of enhanced cell-cycle exit.
Differences in The Application of Conceptual Understanding Procedures Model (CUPs) and Concept Attainment Model (CAM) on Student’s Misconception Reduction in Digestive System Material
Authors: Dewi Shelena Nugraha R , Nilawarni Reduk , Rusdi Rusdi
Published: March 2018

Students require depth understanding of the concept on dygestive system material, however misconception often happens so that optimal learning isn’t reached. This needs to be taken seriously. The introduction and implementation of Conceptual Understanding Procedures Model (CUPs) and Concept Attainment Model (CAM) are expected to reduce the misconception occur in students. Both models are learning model that requires the involvement and student activity in the learning process and can encourage students to be able to construct a concept. This study aimed to obtain data about differences in the application of CUPs and CAM on student misconception reduction in digestive system material. The research was conducted in SMAN 61 Jakarta on February-March 2015. The reseach method used was a quasi experiment. The research sample obtained after pretest ware students who have misconception on XI MIA 2 (The 1st experimental class with CUPsmodel) and XI MIA 4 (The 2nd experimental class with CAM) who collected by simple random sampling. The instrumen used was a multiple choice objective test accompanied by CRI index. Prerequisite test analysis of normality was the Kolmogorov-Smirnov and homogeneity test with the F test. Based on calculation, data obtained was not normally distributes but homogeneous. The statistical hypothesis with Mann-Whitney test result on accepted null ypothesis at α 0,05. It showed that there was no differences in the application of CUPs model and CAM on student’s misconception reduction in digestive system material.
KEMAMPUAN LITERASI SAINS SISWA SD PADA KONTEKS MELESTARIKAN CAPUNG
Authors: Windyariani Sistiana
Published: March 2018

Capung merupakan serangga yang berperan penting dalam keseimbangan ekologi. Saat ini keberadaan capung semakin langka dan ada predisksi suatu saat capung akan punah jika pencemaran air semakin meningkat. Penelitian ini merupakan penelitian deskriptif kuantitatif dan kualitatif yang bertujuan untuk mendeskripsikan kemampuan literasi sains siswa pada konteks melestarikan capung. Penelitian melibatkan 89 orang siswa SD kelas 4  pada 2 Sekolah Dasar di Kota Sukabumi. Data diambil dengan menggunakan soal literasi sains pilihan ganda serta lembar wawancara. Hasil penelitian menunjukkan bahwa kemampuan literasi sains siswa secara umum pada kategori cukup, sementara dari wawancara siswa diperoleh hasil bahwa siswa sudah cukup mampu menjelaskan mengapa capung saat ini sulit di temukan di lingkungan, begitupun dalam upaya menjaga kelestarian capung. Melalui penelitian ini diperoleh gambaran literasi sains siswa Sekolah Dasar yang dapat menjadi penelitian pendahuluan untuk mengembangkan pembelajaran untuk melestarikan serangga/hewan yang terancam punah yang disebabkan oleh ketidakseimbangan ekosistem saat ini
MODEL TOLERANSI PADA PEMBELAJARAN SAINS KELAS VIII SEMESTER II DI SMP PESANTREN PRAMUKA ALHIRA PADANG PANJANG
Authors: Sari Elsa Rahmayani , Haviz M , Afwadi Afwadi
Published: March 2018

Penelitian ini bertujuan untuk mengetahui materi apa saja yang memiliki nilai-nilai toleransi, mendeskripsikan proses penanaman nilai-nilai toleransi dan faktor pendukung, penghambat penanaman nilai-nilai toleransi pada pembelajaran sains kelas VIII semester II di SMP Pesantren Pramuka Alhira  Padang Panjang. Hasil penelitian yang dilakukan diketahui bahwa semua materi sains memiliki potensi konflik dan memiliki nilai-nilai toleransi. Materi yang memiliki tingkat kerawanan tinggi untuk terjadi konflik adalah materi sistem peredaran darah manusia karena berhubungan dengan manusia dan kehidupan sehari-hari yang berkaitan dengan pribadi siswa. Penanaman nilai-nilai toleransi dilakukan dengan menciptakan iklim toleran pada setiap pembelajaran sains serta memelihara sikap saling pengertian, saling menghargai dan saling menghormati. Beberapa faktor pendukung dan penghambat penanaman nilai-nilai toleransi tersebut adalah, faktor pendukung diantaranya: Kebijakan peraturan pemerintah, kemampuan guru dalam internalisasi nilai toleransi, dan kegiatan-kegiatan pendukung dari pihak sekolah yang  berperan penting dalam proses penanaman nilai toleransi seperti kegiatan keagamaan, kegiatan kepramukaan dan kegiatan sosial. Adapaun faktor penghambat  diantaranya: Tingkat kemampuan, kematangan emosional siswa yang tidak sama, kurangnya fasilitas pada ruangan laboratorium pada saat praktikum yang dapat menunjang penanaman nilai-nilai toleransi. Jadi dapat disimpulkan penelitian ini telah dapat mengungkap model toleransi pada pembelajaran sains kelas VIII semester II di SMP Pesantren Pramuka Alhira.