bluuebunny/crossref_metadata_2025 huggingface dataset:
The Design of Vibration Sensing System Used for the Internet of Things
Authors: Ji Wei , Ma Xuejie
Published: November 2015

A vibration sensing system used for the Internet of Things is presented in this paper. Using the distributed feedback fiber lasers (DFB-FL) collects external sound signals and digital phase generated carrier (PGC) method realizes wavelength demodulation. The platform is designed based on an open architecture and B/S (Browser/Server) technology which makes it an ideal platform to be operated under a network environment. The sensing system is no power supply and could be monitored anytime and anywhere which is the requirement of Internet of things.
A first case report of UDP-galactose-4′-epimerase deficiency in China: genotype and phenotype
Authors: Tong Fan , Yang Rulai , Hong Fang , Qian Guling , Jiang Pingping , Gao Rui
Published: November 2015

Background: The aim of the study was to investigate the incidence and genotype-phenotype characteristics of UDP-galactose-4′-epimerase (GALE) deficiency in newborn screening of Chinese population.

Methods: Neonates were screened at the Newborn Screening Center of Zhejiang Province, China for GALE deficiency and their condition was confirmed by testing of the GALE gene and GALE enzyme. Clinical and laboratory follow-up data were recorded.

Results: A total of 350,023 of newborns were screened; of which, the condition of one female neonate was diagnosed with GALE deficiency, accounting for an incidence rate of approximately 1:350,000 in our sample. The patient with GALE deficiency clinically manifested slight increase in levels of blood galactose (122–251 mg/L), glutamyl endopeptidase (61 U/L), total bile acid (17 μmol/L), and lactic acid (1.8 mmol/L). The neonate was fed with lactose-free powdered milk and followed-up to 1 year. Re-examination showed that all biochemical indicators recovered to normal range, whereas physical and mental development appeared normal without cataract change. The genotype of GALE deficiency was identified as compound heterozygous mutations: c.505C>T (p.R169W) and c.452G>A (p.G151D). The latter was a novel mutation. The GALE enzyme value was 42% of control.

Conclusions: GALE deficiency is relatively rare in China. The genotype of compound heterozygous mutations at R169W and G151D clinically manifest as mild-type; it is recommended to limit galactose diet.
Reduced frequency and severity of ketoacidosis at diagnosis of childhood type 1 diabetes in Northwest Saudi Arabia
Authors: Ahmed Ahmed M. , Al-Maghamsi Mohamed , Al-Harbi Abdullah M. , Eid Ihsan M. , Baghdadi Hussam H. , Habeb Abdelhadi M.
Published: November 2015

Raising the awareness of childhood diabetes symptoms can reduce the frequency of diabetic ketoacidosis (DKA) at onset of type 1 diabetes (T1D). However, data on the effectiveness of such interventions are limited. The aim of the study was to describe trends of DKA at onset of childhood T1D during 2005–2014 and assess the impact of a diabetes awareness campaign launched late 2010.

Data of children <12 years presented with DKA at diagnosis were analyzed according to age, gender and year of diagnosis. The frequency and severity of DKA before and during the 4 years campaign were compared.

During 2005–2014, 44.9% (243/541) of children diagnosed with T1D presented with DKA. Of these, 22.7% had pH <7.1. In both genders DKA was higher in children <6 years (47.8% vs. 40%; p<0.01) and more severe in <3 years old compared to older children (30% vs. 20%; p<0.01). Following the awareness campaign DKA rate dropped from 48% in 2010 to 39% in 2014 and 15.8% had severe DKA compared to 26.1% in 2005–2010 (p<0.01). This trend was observed in both genders and across age groups. In children <3 years the reduction in DKA frequency and severity was not statistically significant (p=0.15 and p=0.42, respectively).

In NWSA, the frequency and severity of DKA at onset of childhood T1D were reduced following 4 years awareness campaign; but the rate is still high. Maintaining the campaign may result in further improvement following a longer period of observation.
The relation of urinary bisphenol A with kisspeptin in girls diagnosed with central precocious puberty and premature thelarche
Authors: Özgen İlker Tolga , Torun Emel , Bayraktar-Tanyeri Bilge , Durmaz Erdem , Kılıç Elif , Cesur Yaşar
Published: November 2015

Bisphenol A (BPA) is known as an endocrine disruptor and it is supposed to have a role on the development of central precocious puberty (CPP). Kisspeptin, a hypothalamic peptide, is a neuromodulator of gonadotropin releasing hormone and it has an important role on regulation of the onset of puberty. The BPA levels in girls with CPP and premature thelarche (PT) and its relation with kisspeptin levels were investigated.

Twenty-eight girls with CPP, 28 girls with PT and 22 prepubertal girls as a control group were enrolled to the study. Urinary BPA and serum kisspeptin levels were compared in the groups. Bivariate correlations were performed to evaluate the relations of BPA with kisspeptin and estradiol.

There was no statistical difference between groups regarding BPA levels. Serum kisspeptin levels were higher in CPP group than controls [306.56 (interquartile range (IQR), 175.63–504.66) vs. 157.62 (IQR, 55.61–285.00) p: 0.008]. There were no correlations between BPA and kisspeptin levels (r: 0.088, p: 0.391) and between BPA and estradiol (r: –0.171, p: 0.144).

The BPA levels did not differentiate between groups and it seems that the exposed amount of BPA in daily life did not affect kisspeptin levels in girls with CPP and PT.
Anxiety, depression and self-esteem levels in obese children: a case-control study
Authors: Topçu Seda , Orhon Filiz Şimşek , Tayfun Meltem , Uçaktürk Seyit Ahmet , Demirel Fatma
Published: November 2015

Obesity is a global health problem affecting all age groups. Childhood obesity, which may cause chronic diseases including diabetes mellitus, cardiovascular disease and cancer, etc., deserves more attention. However, few studies highlight the association between childhood obesity and psychological diseases. In the present study, we aimed to evaluate the psychological condition in obese children.

One hundred and sixty-seven obese (body mass index (BMI) >95th percentile) and 200 normal weight children (BMI between 5th and 85th percentile) aged 9–16 years were enrolled into this case-control study. In order to assess the self-concept, anxiety and depression levels: the Piers-Harris Children’s Self-Concept Scale (PHCSCS), state and trait anxiety inventory for children (STAI-C) and the children depression inventory (CDI) were administered both obese and control groups.

There were significant differences among obese and control groups in terms of the total score of PHCSCS [55 (22–69) versus 65 (57–74)], STAI-C [37 (20–55) versus 28 (20–42)], and CDI [12 (4–39)] versus [8 (3–19)]; respectively (p<0.001, p<0.001, p<0.001). We also found statistically significant differences among groups in all of the subscales parameters of PHCSCS (p<0.001).

Our results indicate that obese children may experience psychiatric disorders more than normal-weight peers.
Relationship between visceral obesity and plasma fibrinogen in obese children
Authors: Hafez Mona , El-Masry Sahar , Musa Noha , Fathy Marwa , Hassan Mona , Hassan Nayera , El Husseiny Mohamed , Tareef Mahmoud
Published: November 2015

The prevalence of obesity in children and adolescents has increased significantly worldwide with an alarming rise of its co-morbidities. The excess of visceral adipose tissue is associated with hypertension, prothrombotic and pro-inflammatory states. Our aim was to find a possible association between visceral obesity and plasma fibrinogen, as one of the cardiovascular risk factors, in obese children.

Forty-three obese children and 40 non-obese controls were studied regarding their history, complete physical examination, anthropometric assessment, body composition analysis, ultrasonographic measurement of visceral adipose tissue and subcutaneous fat as well as laboratory measurement of plasma fibrinogen.

Our study revealed significant higher levels of fibrinogen in obese children than controls (14.5+5.1 and 2.9+0.52 mg/mL, respectively) with p-value <0.01. Moreover, the obese group had statistically significant difference in visceral fat (5.96+0.77 cm) and subcutaneous fat (2.66+0.70 cm) than controls (2.45+0.65 and 0.70+0.18 mg/mL, respectively) with p-value <0.01. In addition, fibrinogen had significant positive correlation with body mass index (r=0.327), waist/hip ratio (r=0.394), fat percentage (r=0.301), visceral adipose tissue (r=0.323) and subcutaneous fat (r=0.301).

There was highly significant increase in the fibrinogen level, visceral and subcutaneous abdominal fat in the obese group with insignificant sex differences. Fibrinogen had a significant positive correlation with the different adiposity markers, blood pressure, visceral and subcutaneous fat. Visceral adipose tissue is a stronger predictor for cardiovascular risk compared to subcutaneous fat.
Effect of different culture media on isolation and differentiation of dendritic cells / Farklı besiyerlerinin dendritik hücre izolasyon ve farklılaşmasına etkisi
Authors: Yılmaz Ayşe Mine , Altundağ Ergül Mutlu , Gedik Gülşah , Koçtürk Semra , Süha Yalçın A. , Taga Yavuz
Published: November 2015

Objective: Dendritic cells (DCs) are members of the mammalian immune system and are considered to be the most powerful antigen presenting cells. They are responsible for the induction of T-cells or T-cell dependent immunity and tolerance. In this study we have investigated the effect of different serum supplements on generation and yield of mature dendritic cells isolated from peripheral blood mononuclear cells.

Methods: Three different serum supplements (10% Fetal Bovine Serum, 1% Human Serum Albumin and 1% autologous serum) were compared with serum-free media to identify the role and importance of serum supplements on DC cultivation. Effect of different media on maturation signs (CD40, CD80, CD86, CD209a) and cytokine release (TNF-α, IL-10, IL-12, IL-6) was examined.

Results: DCs generated in serum-free media was similar to those of cells in medium with autologous serum. Few dendritic-like cells were observed in fetal bovine serum and human serum albumin. The effect of different media on maturation of DCs was compared phenotypically and increased expression of CD80, CD86 and CD209a identified maturation and yield of DCs.

Conclusion: Our results suggest that serum free media can be used to overcome potential drawbacks associated with different serum containing supplements.
Optimization of physical parameters for phycobiliprotein extracted from Oscillatoria agardhii and Synechococcus nidulans / Oscillatoria agardhii ve Synechococcus nidulans türlerinden fikobiliprotein ekstraksiyonu için fiziksel parametrelerin optimizasyonu
Authors: Deniz İrem , İmamoğlu Esra , Dalay Meltem Conk
Published: November 2015

Objective: Physical process parameters play a major role in the cultivation of cyanobacteria to provide high yield. The aim of this study was to optimize physical parameters such as light intensity and agitation rate which might affect the phycobiliprotein formations for cyanobacterial strains of Oscillatoria agardhii and Synechococcus nidulans using response surface methodology.

Methods: The cyanobacterial strains were cultured in 250 mL flasks containing 100 mL of EM medium in orbital shaking incubator under the temperature of 22±2°C at different light intensities and agitation rates for 10 days. The experimental design was carried out using 22 full-factorial experiments design with four axial points (α=1.414) and five replicates at the central point (65 μmol photons m-2s-1 and 150 rpm), according to the central composite design.

Results: The optimization solution of O. agardhii (approximately at 156 rpm under the light intensity of 65 μmol photons m-2s-1) was selected because it resulted in the highest predicted response with the highest desirability. Furthermore, the optimization solution for S. nidulans suggested the phycobiliprotein amount of 9.95 mg/L obtaining at the agitation rate of 185 rpm under the light intensity of 46 μmol photons m-2s-1. The optimized results were reliable and the regions studied were proven to be statistically adequate.

Conclusion: High agitation rate stimulated the faster growth than increased the light intensity for the growths of cyanobacterial strains.
Epidermal growth factor, tumor necrosis factor alpha, and thioredoxin in cerebral tissue following cerebral ischemia / Serebral iskemi sonrası beyin dokusunda epidermal büyüme faktörü, tümör nekrozis faktör alfa ve tiyoredoksin
Authors: Kömürcü Hatice Ferhan , Kılıç Nedret , Demirbilek Melike Erol , Kahraman Serdar
Published: November 2015

Objective: In this study, the changes in the levels of the epidermal growth factor (EGF), tumor necrosis factor alpha (TNF-α), and thioredoxine (TRX) in the cerebral tissue of rats following the cerebral ischemia model were investigated.

Methods: The left middle cerebral artery occlusion (MCAO) was done in 27 out of 48 rats recruited into the study for obtaining focal cerebral ischemia model (MCAO group). Twenty-one rats underwent a sham operation; the middle cerebral artery was exposed but not occluded (Sham group). EGF, TNF-α, and TRX levels were studied in the operated left and contralateral hemispheres at the 16th, 48th, and 96th hours, and on the 30th day after operation in both sham and MCAO groups.

Results: EGF levels at 96th hour in MCAO group were higher than those of sham group in both right and left hemispheres; and also the levels of EGF at 48th hour in MCAO group were lower significantly than those of sham group in just left hemisphere. In MCAO group, TNF-α levels on the 30th day in right hemisphere were higher than those in left hemisphere. Whereas TRX levels at the 48th hour in right hemisphere were higher than those in left hemisphere.

Conclusion: The results suggested that cerebral ischemia following MCAO might affect EGF, TNF-α and TRX levels in both ischemic and contralateral hemispheres in cerebral tissue; and this effect may change by the time passed after MCAO.
SiMiSnoRNA: Collection of siRNA, miRNA, and snoRNA database for RNA interference / SiMiSnoRNA: RNA Interferansı için siRNA, miRNA ve snoRNA veritabanında depolanan siRNA, miRNA, and snoRNA koleksiyonları
Authors: Kalathiya Umesh , Padariya Monikaben , Baginski Maciej , Padariya Chintankumar
Published: November 2015

Objective: The discovery of sequence specific gene silencing which occurs due to the presence of double- stranded RNAs has considerable impact on biology, revealing an unknown level of regulation of gene expression. This process is known as RNA interference (RNAi) or RNA silencing in which RNA molecules inhibit gene expression, typically by causing the destruction of specific mRNA molecule. Two types of small RNA molecules-small interfering RNA (siRNA) and microRNA (miRNA) are central to RNA interference. Therefore, SiMiSnoRNA database has been developed to focus on the efficient storage of RNA interferences or small RNA sequences and qualitative analysis of its structures across variety of organisms.

Methods: SiMiSnoRNA database is developed using WAMP server which implements Apache, MySQL, and PHPas principal components.

Results: A flexible web-based search engine is developed to obtain fast access to specific small RNA sequence information.

Conclusion: BLAST search analysis within SiMiSnoRNA enables users to compare their own query sequence data with SiMiSnoRNA database to retrieve related information. To facilitate data consistency, publicly available information from NCBI has been integratedinto database that can be conveniently used for research on the experimental and molecular biology.
Anomalous X-ray Scattering on Semiconducting Glasses at ESRF: Review in Recent Fifteen Years
Authors: Hosokawa Shinya , Stellhorn Jens Rüdiger , Pilgrim Wolf-Christian , Bérar Jean-François
Published: November 2015

The most difficult issue for the structural characterizations for
non-crystalline multi-component materials is to determine partial
structures because n(n + 1)/2 scattering experiments with different
scattering cross-sections are necessary for n-component
materials. More than three decades have already passed through since
anomalous X-ray scattering (AXS) using synchrotron radiation (SR) was
expected as a promising tool for investigating partial
structures. Compared with a related method, X-ray absorption fine
structure, however, AXS is still rarely used owing to difficulties in
the experiments and data analyses. We have developed a new detecting
system, which can fully utilize intense X-ray fluxes from
third-generation SR facilities. Using this detecting system, we have
carried out many AXS experiments at the beamline BM02 of the ESRF on
several semiconducting glasses. The obtained differential structure
factors were analyzed using reverse Monte Carlo modeling to draw
three-dimensional atomic configurations. In this article, we review
results of semiconducting glasses, and describe the structure-property
relations in these glasses.
Working Jews: Hazanim and the Labor of Religion in Nineteenth-Century America
Authors: Rabin Shari
Published: November 2015

This article uses the case of hazanim, nonordained Jewish religious functionaries, to explore how religious work operated as a market activity in the nineteenth century. Building on recent work at the intersection of religion, class, and capitalism, it recasts ministers, rabbis, and other religious leaders as contracted workers who sought ways to acquire wages through the specific marketing of ritual authority. Scholars have described the history of the American ministry as a path toward professionalization, seen as the outcome of clerical self-assertion in the aftermath of disestablishment. These accounts, however, ignore the everyday social and economic factors shaping the development of American religious institutions, which were particularly challenging for Jews, who had specific needs for religious labor, no existential distinction between ministers and congregants, and no institutional infrastructure to oversee qualifications and placement. As Jews founded congregations in the United States, they required particular human resources, which were acquired through unregulated contracts and unreliable credentials. These complex conditions contributed to the possibility of religious exploitation, personal fraud, communal instability, interpersonal distrust, and social conflict, which shifted in meaning and intersected with notions of religious authenticity. In this context, Jews increasingly prioritized preaching and teaching and founded national institutions, which together would make religious work more specialized, labor markets more efficient, and the resultant professionals more reliable in their work. Understanding religious workers in this way encourages us to see how religion was, and is, labor.
Sound—So What?
Authors: Smith Mark M.
Published: November 2015

“Sound—So What?” proposes to answer the following questions: Why listen to the past? What are the interpretive dividends of paying attention to sounds, noises, and silences? What do we lose by not listening? The article answers these questions by charting how some key works in historical acoustemology have enhanced, textured, and revised our understanding of US history for all eras. The article examines how key themes in the history of religion, westward expansion, and urbanization have been refined and revised by a number of works that have listened carefully to the past.
Ears-on Exhibitions
Authors: Bijsterveld Karin
Published: November 2015

Between March 2013 and November 2014, the Amsterdam Museum had an installation that enabled visitors to compare a recent soundscape recording of the Dam Square with simulations of how the Dam sounded in 1895 and 1935. Constructing these simulations involved virtual acoustics software, recordings of historical artifacts, and research into the urban past. This paper critically discusses how the installation was made and received by comparing the acoustic authenticity ideal behind it with the aims of the early music movement. It concludes by reviewing alternative ways of using sound in history museums by reflecting on issues of framing, identification, sensory instruction, and embodiment.
Children with classic congenital adrenal hyperplasia experience salt loss and hypoglycemia: evaluation of adrenal crises during the first 6 years of life
Authors: Odenwald Brigitte , Nennstiel-Ratzel Uta , Dörr Helmuth-Günther , Schmidt Heinrich , Wildner Manfred , Bonfig Walter
Published: November 2015

Objective

To evaluate adrenal crises after the start of treatment up to the age of 6 years in children with classic congenital adrenal hyperplasia (CAH).

Design

Analysis of data extracted from a population-based prospective long-term follow-up study of children detected in neonatal screening.

Methods

Data of 102 Bavarian children with classic CAH due to 21-hydroxylase deficiency were analyzed, using parental questionnaires and medical reports. Parent-reported hospital admissions of children diagnosed with acute health impairment were included in the analysis if salt loss (hyponatremia) or hypoglycemia was documented in the discharge summary.

Results

A total of 74 children (72.5%) had no report of hospital admissions with salt loss or hypoglycemia during the observational period. However, in 27.5% of the children, 22 salt-wasting crises (seven of these also with low blood glucose) and 16 hypoglycemic episodes without salt loss were reported. Furthermore, the cumulative incidence for seizures was elevated; 13 children experienced seizures during hyponatremia or hypoglycemia. Most adrenal crises were triggered by infections, often with inappropriate emergency management, but in 11 cases hypoglycemia occurred unexpectedly, without evidence of severe illness and without any management errors. Frequency of adrenal crises was 6.5 per 100 patient years (95% CI: 4.6–8.8).

Conclusions

Crisis prevention remains a permanent challenge for families and physicians caring for children with classic CAH. Expert care and compliance with emergency recommendations are crucial. Further research on the interactions among glucocorticoid deficiency, adrenomedullary dysfunction, and glucose metabolism is necessary for the prevention of hypoglycemia, especially in young CAH patients.
Synergistic Pleiotropy Overrides the Costs of Complexity in Viral Adaptation
Authors: McGee Lindsey W , Sackman Andrew M , Morrison Anneliese J , Pierce Jessica , Anisman Jeremy , Rokyta Darin R
Published: November 2015

Adaptive evolution progresses as a series of steps toward a multidimensional phenotypic optimum, and organismal or environmental complexity determines the number of phenotypic dimensions, or traits, under selection. Populations evolving in complex environments may experience costs of complexity such that improvement in one or more traits is impeded by selection on others. We compared the fitness effects of the first fixed mutations for populations of single-stranded DNA bacteriophage evolving under simple selection for growth rate to those of populations evolving under more complex selection for growth rate as well as capsid stability. We detected a cost of complexity manifested as a smaller growth rate improvement for mutations fixed under complex conditions. We found that, despite imposing a cost for growth rate improvement, strong complex selection resulted in the greatest overall fitness improvement, even for single mutations. Under weaker secondary selective pressures, tradeoffs between growth rate and stability were pervasive, but strong selection on the secondary trait resulted largely in mutations beneficial to both traits. Strength of selection therefore determined the nature of pleiotropy governing observed trait evolution, and strong positive selection forced populations to find mutations that improved multiple traits, thereby overriding costs incurred as a result of a more complex selective environment. The costs of complexity, however, remained substantial when considering the effects on a single trait in the context of selection on multiple traits.
¿MULTIPLICAR Tetrastichus howardi (HYMENOPTERA: EULOPHIDAE) EN LA ORUGA DE LA SEDA AFECTA SU BIOLOGÍA?
Authors: Piñeyro Nahara Gabriela , Fagundes Pereira Fabricio , Gomes Borges Felipe Luis , Rossoni Camila , De Souza Silva Antonio , Oliveira Kassab Samir
Published: November 2015

RESUMEN

La multiplicación sucesiva de parasitoides en hospederos alternativos, puede afectar las características biológicas y comprometer los sistemas de cría masiva de estos. El objetivo de este trabajo fue evaluar la multiplicación de Tetrastichus howardi (Olliff, 1893) (Hymenoptera: Eulophidae) en pupas del hospedero alternativo Bombyx mori (Linnaeus, 1758) (Lepidoptera: Bombycidae), durante tres generaciones. Y si eso afecta su desempeño reproductivo, cuando se cría, posteriormente, en pupas del hospedero natural Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae). Las informaciones obtenidas en este estudio pueden mejorar y facilitar el control biológico de plagas, principalmente, con la utilización de parasitoides, debido a que T. howardi parasita y se desarrolla en pupas de B. mori. De forma general, la multiplicación de T. howardi durante tres generaciones en pupas del hospedero alternativo B. mori no compromete las características biológicas de este parasitoide cuando se multiplica en su hospedero natural D. saccharalis a los efectos de su utilización en programas de control biológico.

ABSTRACT

The successive multiplication of parasitoids in alternative hosts can affect the biological characteristics and compromise the systems for massive rearing. The aim of this study was to evaluate if the multiplication of Tetrastichus howardi (Olliff, 1893) (Hymenoptera: Eulophidae) in pupae of the alternative host Bombyx mori (Linnaeus, 1758) (Lepidoptera: Bombycidae) for three generations, affects its reproductive performance, when are reared, then in pupae of the natural host Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae). The information obtained in this study can improve and facilitate the biological control of pests, mainly with the use of parasitoids, due to the fact that T. howardi parasite and develops into pupae of B. mori. In general, the multiplication of T. howardi for three generations in the alternative host pupae of B. mori does not compromise the biological characteristics of this parasitoid when multiplied in its natural host D. saccharalis to the effects of their use in biological control programs.

 
Clases de potencias de dos en sucesiones k-generalizadas de Fibonacci
Authors: Gómez Carlos Alexis
Published: November 2015

La sucesión k-generalizada de Fibonacci [Fórmula]  es la sucesión
lineal recurrente de orden k, cuyos primeros k términos son 0,... 0, 1 y cada término posterior es la suma de los k términos precedentes. Se dice que dos o más términos de una sucesión k-generalizada de Fibonacci están en la misma clase de potencia de dos si los mayores factores impares de los términos son idénticos. En este trabajo, se muestra que para cadaK ≥ 2, sólo hay dos tipos de clases de potencias de dos en una secuencia k-generalizada de Fibonacci: una, cuyos términos son todas las potencias de dos en la sucesión y la otra, con un único término.
Solución de algunas ecuaciones telegráficas de orden fraccional
Authors: Galué Leda
Published: November 2015

En los últimos años, ha habido un gran interés en las ecuaciones diferenciales fraccionales debido a su frecuente aparición en diversos campos, y a sus modelos más precisos de los sistemas en estudio proporcionados por las derivadas fraccionales. En particular, las ecuaciones telegráficas fraccionales han sido consideradas y resueltas por muchos investigadores, utilizando diferentes métodos. En este trabajo se derivó la solución de dos ecuaciones telegráficas homogéneas, con espacio-tiempo fraccionales, utilizando el método de la transformada diferencial generalizada. Las derivadas se consideran en el sentido Caputo y las soluciones se dan en términos de la función generalizada de Mittag-Le_er y la función de Wright generalizada. Además, se incluyen varias gr_a_cas que muestran el comportamiento de la solución obtenida, y los resultados dados anteriormente por Momani, Odibat y Momani, Yildrim, Garg y Sharma, y Garg et al. se obtienen como casos particulares de los nuestros.
Obstacle Polygon as an Assessment of Fundamental Movement Skills in 6-Year-Old Children/Poligon prepreka u funkciji procjene biotičkih motoričkih znanja šestogodišnjaka
Authors: Lovrić Franjo , Jelaska Igor , Bilić Žarko
Published: November 2015

AbstractThe study was conducted in order to determine the appropriateness of assessment of the level of fundamental movement skill development of six-year-old children by using an obstacle polygon. In accordance with the aim of the study, a sample of 78 six-year-old pupils (39 boys and 39 girls) was used. Through high inter-item correlation and high Cronbach's alpha coefficient, the results clearly indicate excellent reliability of the measuring instrument. Furthermore, normality of the distribution clearly points to the good discriminative power of the polygon. The t-test showed no differences between boys and girls in both the applied polygon and morphological features. The results of the multiple regression analysis with two predictors showed no impact of the used morphological features on the performance of fundamental movement skill assessment manifested through the obstacle polygon. The obtained results clearly point to a very high applicability of the polygon in the physical education curriculum as an instrument for assessment and verification of fundamental movement skills among six-year-old children. Key words: metric characteristics; motor learning; physical education curriculum; regression analysis.---SažetakIstraživanje je provedeno s ciljem utvrđivanja prikladnosti i mogućnosti procjene stupnja razvijenosti biotičkih motoričkih znanja šestogodišnjaka koristeći se poligonom prepreka. U skladu s navedenim koristit će se uzorak od 78 učenika (39 dječaka, 39 djevojčica) u dobi od 6 godina. Kroz visoke iner-item korelacije i visoki Chronbach alpha koeficijent, rezultati jasno ukazuju na zadovoljavajuću pouzdanost mjernog instrumenta. Nadalje, rezultati KS testa jasno ukazuju na dobru strukturu odnosno osjetljivost poligona. T-testom je utvrđeno nepostojanje razlika između dječaka i djevojčica kako u primijenjenom poligonu tako i u morfološkim karakteristikama. Nadalje, rezultati višestruke regresijske analize sa dva prediktora pokazali su da ne postoji utjecaj morfoloških karakteristika na izvedbu poligona za procjenu biotičkih motoričkih znanja. Dobiveni rezultati nedvosmisleno ukazuju na praktičnost i primjenjivost poligona u nastavnom procesu tjelesne i zdravstvene kulture kao sredstva za procjenu i provjeru biotičkih motoričkih znanja.Ključne riječi: morfološke karakteristike; motoričko učenje; regresijska analiza; tjelesna i zdravstvena kultura.
Learner Autonomy through the Prism of Learning Styles in the European Language Portfolio/Učenikova samostalnost kroz prizmu stilova učenja u Europskome jezičnom portfoliju
Authors: Košuta Nataša , Vičević Ivanović Sanja
Published: November 2015

AbstractThe aim of this paper was to investigate the ways of receiving and conveying information in German classes, with regard to the types of learners found in the European Language Portfolio (ELP) for learners aged 11–15 in the Republic of Croatia – visual, auditory, and those who learn best through direct language use. The share of these types of learners was obtained during 2012 with the help of a questionnaire from the above-mentioned ELP on the sample of 147 pupils. By submitting a questionnaire to 22 teachers during 2012, the use of a certain way of conveying information in teaching was studied; by analysing 20 textbooks and 20 workbooks for German as a second foreign language during the school year 2010/2011, the way information was conveyed to a specific type of learner was studied. The research showed that the learners preferred receiving information visually, whereas the teachers said that they conveyed information appropriately to different types of learners in equal amounts. On the other hand, when conveying information, textbooks and workbooks gave precedence to the visual type. The results pointed to the importance of raising awareness of different learning styles as a part of developing learner autonomy and suggested that the ELP could have a significant role in the process.Key words: German in primary school; learner autonomy; self-assessment; type of learner.---SažetakCilj je ovoga rada ispitati način primanja i posredovanja informacija na nastavi njemačkoga jezika s obzirom na tipove učenika navedene u Europskome jezičnom portfoliju (EJP) za učenike i učenice od 11 do 15 godina u Republici Hrvatskoj – vizualni, auditivni i tip učenika koji najbolje uči izravnom uporabom jezika. Zastupljenost navedenih tipova učenika ispitana je 2012. godine provedbom upitnika iz spomenutoga EJP-a na uzorku od 147 učenika. Posredovanje informacija na način primjeren pojedinome tipu učenika ispitano je 2012. godine anketiranjem 22 nastavnika te školske godine 2010./2011. analizom udžbenika i radnih bilježnica za njemački kao drugi strani jezik. Istraživanje je pokazalo da učenici prednost daju primanju informacija vizualnim putem, a da nastavnici procjenjuju kako podjednako posreduju informacije primjerene istraživanim tipovima učenika. S druge strane, u posredovanju se informacija putem udžbenika i radnih bilježnica prednost daje vizualnome tipu učenika. Dobiveni rezultati ukazuju na važnost osvještavanja stilova učenja u razvijanju učenikove samostalnosti pri čemu važnu ulogu može imati EJP.Ključne riječi: njemački jezik u osnovnoj školi; samovrednovanje; tip učenika; učenikova samostalnost.
Acoustics in School Sport Halls and Its Implications for Physical Education/Akustika u školskim dvoranama i njezine implikacije na nastavu tjelesnoga odgoja
Authors: Jurak Gregor , Kovač Marjeta , Starc Gregor , Leskošek Bojan
Published: November 2015

Abstract Due to the demanding acoustic conditions in physical education lessons and the related problems with health and academic success, the aim of this study was to examine the acoustic conditions of teaching in sport halls in Slovenia. Thirty-five sport halls were selected, reflecting four types of school sport halls grouped according to the period of their construction. The reverberation time was measured, and speech intelligibility was calculated by means of the Speech Transmission Index. Eighty-six per cent of the sport halls have poor or merely satisfactory speech intelligibility; statistically significant differences in acoustics were observed between different types of sport halls. The best acoustic conditions were found in the newer, multi-purpose sport halls, which allow three classes to be taught simultaneously; the worst conditions were observed in the older, single-class sport halls. The acoustics of the school sport halls should be improved, and the strain on the voice of the teachers should be reduced by means of a more suitable organisation of lessons and the use of information communication technology equipment.Keywords: gym; learning environment; noise; physical educators; speech intelligibility. --- SažetakZbog zahtjevnih akustičkih uvjeta u kojima se odvija nastava tjelesnoga odgoja, problemima po zdravlje i uspjeh učenika koje takvi uvjeti uzrokuju, cilj je ovoga rada bio istražiti akustičke uvjete u školskim dvoranama u kojima se u Sloveniji odvija nastava tjelesnoga odgoja. Odabrano je trideset i pet školskih dvorana koje su odražavale četiri tipa sportskih dvorana izgrađenih u različito vrijeme. Mjereno je vrijeme odjeka te je s pomoću Indeksa prijenosa govora izračunata vrijednost razumljivosti govora. Razumljivost govora loša je ili jedva zadovoljavajuća u osamdeset i šest posto sportskih dvorana. Pronađene su statistički značajne razlike u akustici prostora koji pripadaju različitim tipovima dvorana. Najbolje akustičke uvjete imaju višenamjenske sportske dvorane koje pružaju mogućnost simultanoga rada s trima skupinama učenika. Najlošije uvjete imaju starije sportske dvorane u kojima se u jednom vremenskom razdoblju može održavati nastava samo s jednom skupinom učenika. Potrebno je unaprijediti akustiku školskih sportskih dvorana, a napor koji trpi glas nastavnika umanjiti s pomoću primjerene organizacije nastave i opreme koju nude informacijsko-komunikacijske tehnologije.Ključne riječi: buka; dvorana; nastavnici tjelesnog odgoja; okolina u kojoj se odvija nastava; razumljivost govora.
Innovation Opportunities Offered by Wikis in Higher Education Courses: Implementation Modelling/Inovacijske mogućnosti koje nudi upotreba wikija u izvođenju visokoškolskih kolegija: implementacijsko modeliranje
Authors: Bobera Dušan , Sakal Marton , Tumbas Pere , Matkovic Predrag
Published: November 2015

AbstractResearch results point to the great innovation potentials of Wikis in the university teaching process, but also to problems arising in the course of their implementation. This article proposes a model for implementing a wiki within the course of Innovation Management, based on the experiences of some university wiki systems implemented earlier, and the results of a survey conducted among the students of the Faculty of Economics in Subotica.Key words: collaborative learning; innovation management; Net Generation; Web 2.0.---SažetakRezultati istraživanja otkrivaju značajne inovacijske potencijale upotrebe wikija u sveučilišnoj nastavi, ali i probleme koji nastaju tijekom njihove implementacije. U ovome se članku predlaže model za implementaciju wiki sustava u okviru kolegija Inovacijski menadžment. Model je utemeljen na iskustvima nekih prije implementiranih sveučilišnih wiki sustava i rezultatima istraživanja provedenoga sa studentima Ekonomskoga fakulteta u Subotici.Ključne riječi: suradničko učenje; inovacijski menadžment; net generacija; Web 2.0.
Bifactorial structure of Locus of Control cross-culturally invariant across Spain, Chile and United Kingdom
Authors: Suárez-Álvarez Javier , García-Cueto Eduardo , Pedrosa Ignacio , Muñiz José
Published: November 2015

El locus de control (LOC) es una variable frecuentemente evaluada debido a que juega un importante papel en diferentes contextos. Sin embargo, no existe un acuerdo unánime sobre cuántas dimensiones componen la estructura factorial del locus de control. El objetivo de esta investigación fue añadir nuevas evidencias de validez transcultural en relación con la invarianza bifactorial del LOC. El test fue aplicado a un total de 1781 participantes procedentes de España (697), Chile (890) y Reino Unido (194). El estudio de la invarianza factorial entre los grupos se realizó utilizando modelos de análisis factorial confirmatorio multigrupo para datos categóricamente ordenados. La evaluación progresiva de la invarianza factorial confirma que las cargas factoriales, los umbrables, y las varianzas de los errores son invariantes a través de los grupos. Finalmente, no se encontraron diferencias transculturales relevantes en LOC entre España, Chile y Reino Unido (PS < .50).
Aportes de los métodos psicométrico-cognitivos a las pruebas educativas y psicológicas
Authors: Artavia-Medrano Álvaro
Published: November 2015

La integración de elementos cognitivos con enfoques psicométricos constituye un campo promisorio en el

diseño de pruebas educativas y psicológicas, así como en la interpretación de los resultados que con ellas se obtienen. De igual modo, permiten disponer de evidencias de validez de constructo, puesto que los atributos que se proponen se contrastan con el marco teórico del dominio de conocimiento de interés. En este artículo se destacan los aportes del método rule space en las evaluaciones de diagnóstico cognitivo.
Invarianza por Sexo en la Escala de Detección del Trastorno de Ansiedad Generalizada (EDTAG)
Authors: Gonzalez-Betanzos Fabiola , Rivera-Heredia María Elena , Padrós-Blázquez Ferrán
Published: November 2015

En el presente trabajo se muestra la forma en la que se evalúa la invarianza utilizando los modelos de análisis factorial confirmatorio para medias y covarianzas (AFC-MACS) para datos categóricos y los modelos de Teoría de Respuesta al Ítem (TRI). Se ejemplifica el análisis de la invarianza en el estudio de la Escala de Detección del Trastorno de Ansiedad Generalizada (EDTAG) comparando hombres y mujeres. La EDTAG es una escala ampliamente utilizada en las instituciones de salud y por sus características (escala breve de 12 ítems dicotómicos) cualquier error de medida puede tener un impacto importante. En los resultados se muestra que la escala tiene la misma configuración, sin embargo, el ítem 9 muestra funcionamiento diferencial siendo los hombres quienes mayor probabilidad tienen de responder de manera afirmativa comparado con mujeres del mismo nivel de rasgo. Se discute la necesidad de éste tipo de análisis en las escalas.
Lo político de la cultura. La de/colonialidad y la interculturalidad de lo nacional en la América Andina
Authors: Miranda Delgado Rafael Gustavo
Published: November 2015

Este artículo pretende ubicarse en los entrelazamientos de lo político y las expresiones culturales, donde sus fronteras se difuminan en una compleja e irreducible realidad. Se busca hacer evidente la relación entre política y cultura, entendiendo a esta última, desde una perspectiva crítica y antropológica, como un espacio problemático, de luchas y tensiones. Para esto, se analizan los procesos de de/colonialidad de lo nacional e interculturalidad en la América Andina.
La pedagogía teatral y las TIC: Las nuevas TIC como apoyo en el aula universitaria
Authors: Calderón Gómez Juan Carlos
Published: November 2015

La aplicación de las TIC en la preservación del material teatral para la enseñanza y la investigación en el aula, contribuyen a analizar detalladamente la complejidad del fenómeno teatral y su puesta en escena. Lo anterior al clasificar sus partes, analizar sus esquemas, sintetizar y proponer nuevos conocimientos.
Comportamiento neuromuscular posterior a la competencia en jugadores profesionales de fútbol de Costa Rica: un seguimiento tensiomiográfico
Authors: Rojas-Valverde Daniel Francisco , Gutiérrez-Vargas Randall , Sánchez-Ureña Braulio Alonso , Gutiérrez-Vargas Juan Carlos , Cruz-Fuentes Immanuel , Salas-Cabrera Jorge
Published: November 2015

Objetivo del estudio: describir el comportamiento neuromuscular posterior a la competencia en jugadores profesionales de fútbol de Costa Rica por medio de tensiomiografía. Metodología: 10 jugadores masculinos con las siguientes características: 27,78 ± 2,87 años, estatura 175,43 ± 4,04 cm, peso corporal 69,00 ± 3,68 kg, 13,17 ± 3,88 % de grasa corporal. Se realizaron mediciones tensiomiográficas del músculo recto femoral en su estado base (LB) durante la pretemporada y 24 horas posteriores a cuatro partidos oficiales. En tales evaluaciones se comparan los valores de tiempo de contracción (Tc) y desplazamiento muscular (Dm) del hemisferio no dominante (HND) y dominante (HD). Resultados: existen diferencias significativas en Tc-HD entre LB y cuarto partido (F = 567,62; p = 0.037), en Tc-HND entre LB y cuarto partido (J4) (F = 506,90; p = 0,000), primer partido (J1) y cuarto partido (J4) (F = 506,90; p = 0,009), tercer (J3) y cuarto partido (F = 506,90; p = 0,001) y en Dm-HD entre el segundo y cuarto partido (F = 180,65; p = 0,022). Conclusiones: los valores tensiomiográficos (Tc y Dm) son similares a los reportados por estudios previos en jugadores profesionales de fútbol. Existen diferencias significativas en al menos un valor (Tc o Dm) obtenido por medio de tensiomiografía entre la LB (Tc-HD y Tc-HND), J1 (Tc-HND), J2 (Dm-HD) y J3 (Tc-HND) comparado al J4. A medida que transcurre la temporada los valores reportados se asemejan a estudios previos del fútbol internacional y tienen un comportamiento relacionado a respuesta al entrenamiento físico.
Análisis cinemático y diferencias bilaterales en la técnica de pedaleo de ciclistas profesionales
Authors: Yanci Irigoyen Javier
Published: November 2015

Los objetivos de este estudio fueron, por un lado, describir la máxima flexión y extensión de la rodilla y el tobillo alcanzadas en la fase de pedaleo por ciclistas profesionales, y por otro, comparar las diferencias en estas angulaciones entre la extremidad inferior derecha e izquierda. En este estudio participaron 13 ciclistas pertenecientes a un equipo profesional que asiduamente participaba en la Vuelta Ciclista a España. Todos los participantes tenían una experiencia superior a 10 años en el ciclismo. En el presente estudio se realizó la medición de la longitud de las bielas, la altura y el retroceso del sillín de las bicicletas de los ciclistas. De la misma forma se realizó el análisis cinemático en 2D de la pedalada con el fin de analizar las angulaciones de la rodilla y del tobillo. No se encontraron diferencias significativas entre la pierna derecha e izquierda en la angulación de la flexión ni extensión de la rodilla ni tampoco en la flexión del tobillo en el pedaleo de los ciclistas. Sin embargo, contrariamente a otros estudios, si se encontraron diferencias en la angulación de la extensión del tobillo (p < 0,05, diferencia medias = 14,53%, d = 0,37, moderada) entre las dos piernas. En futuras investigaciones podría resultar interesante complementar el análisis cinemático con el cinético con el fin de observar si las diferencias en las angulaciones se acompañan de diferencias en la fuerza aplicada por cada una de las piernas.
El retorno de los afectos en la política
Authors: Carmona Diego
Published: November 2015

Todo cuestionamiento, deliberación y reflexión por parte de las sociedades acerca de sus significaciones, sentidos y poderes, implica conflicto y afectividad. El presente trabajo circunscribe el análisis a la pregunta por el lugar de la afectividad en la política, centrándonos en distintos recorridos y aportes que intentan responder esta pregunta. Nuestro objetivo es reivindicar el papel de los afectos, en un contexto en el que priman aquellas formas de pensar la política en el ámbito de la “racionalidad”; perspectivas que impulsan la búsqueda de consensos racionalmente establecidos y que coinciden en ubicar a los afectos como aquello sobre lo que la política debe distanciarse, postulando la equivalencia entre afectividad e irracionalidad. Se recorrieron distintos abordajes, iniciando con los aportes de la primera etapa de la psicología de las masas, que sostendrán que la línea divisoria entre las formas racionales de organización social y los fenómenos de masas coincide en gran medida con la frontera que separa lo normal de lo patológico, así como la idea de que la distinción entre la racionalidad y la irracionalidad coincidiría ampliamente con aquella entre el individuo y el grupo para a continuación retomar los aportes de Sigmund Freud en “Psicología de las masas y análisis del yo”, y sus conceptos de libido e identificación, centrales para pensar la formación de la masa así como para dar el giro de la idea de sugestibilidad a la de afectividad . Por último, introduciremos los aportes al debate contemporáneo de la politóloga belga Chantal Mouffe que nos permitirán reflexionar sobre la actual situación política en Europa y el avance de los llamados “neofascismos”. No es la intención del presente trabajo agotar las relaciones posibles entre afectividad y política, sino ser una invitación a seguir profundizando en base a los desarrollos que han intentado pensar esta relación a lo largo de la historia. Por lo tanto, más que saldar el debate, nos proponemos aproximar las complejidades del mismo y ser un esbozo a la hora de desarrollar nuevos conceptos, ampliando así la frontera de lo pensable. Es nuestro propósito contribuir a desestigmatizar el rol de los afectos en la política y pensar la importancia de los mismos, ya no para reducirlos a un mero accidente o lugar marginal, sino para pensarlos en su verdadera e importante centralidad.