Search results for "Population"
showing 10 items of 9945 documents
PENGARUH MODEL SNOWBALL THROWING TERHADAP HASIL BELAJAR SISWA KELAS V PADA MATA PELAJARAN PKn DI SD INPRES XX SOLOT
2020
ABSTRACTThis study aims to determine student learning outcomes by using the snowball throwing modelon PKn subjects in the diversity of ethnic groups in Indonesia towards the learning outcomes ofstudents in class V SD Inpres XX Solot Nita District, Sikka Regency. This research is aquantitative study with the tipe of experimental research method used in this study using thepre-experimental (nondesings) type one-group pretest-design method. The population andresearch sample were all students of class V which numbered 14 students. The test instrumentused to determine is in the form of a pre-test and post-test. Based on the learning outcomes thevalues obtained the average experimental class in t…
Characterization and classification of different genotypes in a population of Cucumis melo based on their ability to regenerate shoots from leaf expl…
1995
Variability of the in vitro organogenic response from leaf explants of a seed population of Cueumis melo L. ev. Cantaloupe Charentais was analyzed to detect genotypic variability among individual seeds for shoot regeneration. Variation in shoot regeneration frequency among plants from different seeds was compared to that found among clonal replicas of each original plant. Clonal propagation was performed using in vitro culture of apical and axillary buds of axenic plants to avoid somaclonal variation. Results demonstrate the existence of highly significant differences among plants from the seed population. Regeneration frequency of leaf explants derived from clonally propagated sets of a si…
I suffer from a serious rare disease : a challenge to sing and choreograph on TikTok
2021
Este artículo se encuentra disponible en la siguiente URL: https://revista.profesionaldelainformacion.com/index.php/EPI/article/view/86449 Este artículo pertenece al número "Interacción y visualización ". Las enfermedades raras son patologías muy severas y discapacitantes que afectan al 7% de la población mundial. Para intentar visibilizar y denunciar su situación, las personas que padecen estas enfermedades y sus familias hallaron en Facebook, Twitter y YouTube, entre otras redes sociales, un canal eficaz para compartir sus problemas, exigir una mayor inversión en investigación y poder conllevar sus dificultades diarias. Desde entonces, se han estimado como válidos elementos simbólicos y d…
Análisis psicométrico del test de dependencia de videojuegos (TDV) en población peruana
2017
El objetivo del presente trabajo es validar en población peruana, el
 Test de Dependencia de Videojuegos (TDV) (Chóliz & Marco, 2011).
 Los resultados obtenidos demuestran que se trata de una herramienta
 confiable y válida. Se encontró una sola estructura factorial, en lugar de
 cuatro dimensiones, como plantearon los autores del TDV. Este factor
 podría denominarse genéricamente: adicción a videojuegos, y podría
 servir como evidencia de la existencia de este trastorno, que coincidiría
 con el denominado ‘Trastorno de Juego por Internet’, que aparece en la
 Sección III del DSM-5. Los resultados hallados se discuten en relación a lo
 plantea…
Actitudes hacia las relaciones de pareja en personas con discapacidad: análisis diferencial entre familiares, profesionales y población general
2020
espanolLas actitudes hacia la sexualidad de las personas con discapacidad parecen haber evolucionado en positivo. No obstante, todavia existen creencias erroneas que ayudan a mantener una actitud negativa hacia la sexualidad de estas personas dificultando su desarrollo psicosexual. Este trabajo analiza las actitudes hacia las relaciones de pareja de personas con discapacidad que poseen sus familiares, profesionales y poblacion general. En el estudio participaron 252 personas: 86 familiares, 80 profesionales y 86 personas de la poblacion general. Los resultados muestran que en todos los casos los familiares presentan menor tolerancia hacia las relaciones de pareja mientras que los profesiona…
An analysis of the bias of variation operators of estimation of distribution programming
2018
Estimation of distribution programming (EDP) replaces standard GP variation operators with sampling from a learned probability model. To ensure a minimum amount of variation in a population, EDP adds random noise to the probabilities of random variables. This paper studies the bias of EDP's variation operator by performing random walks. The results indicate that the complexity of the EDP model is high since the model is overfitting the parent solutions when no additional noise is being used. Adding only a low amount of noise leads to a strong bias towards small trees. The bias gets stronger with an increased amount of noise. Our findings do not support the hypothesis that sampling drift is …
Editorial on the special issue “Private Life Choices, Employment and Health”
2013
The health conditions of the German population have been subject to signifi cant changes in the past. Within the last forty years, for example, the life expectancy at birth of both men and women reported by the German Federal Statistical Offi ce rose by more than eight years. In recent years, chances of survival in the middle and old ages were responsible for the increase in life expectancy. In this respect – and to an extent never seen before – it is nowadays possible to spend one’s lifetime actively within the family and productively on the labour market. However, in times of a shrinking population, changes of the conditions on the labour market and new arrangements of private life choice…
The Tax Justice Network-Africa v Cabinet Secretary for National Treasury & 2 Others: A Big Win for Tax Justice Activism?
2019
This paper develops an optimization model for selecting a large subsample that improves the representativeness of a simple random sample previously obtained from a population larger than the population of interest. The problem formulation involves convex mixed-integer nonlinear programming (convex MINLP) and is therefore NP-hard. However, the solution is found by maximizing the “constant of proportionality” – in other words, maximizing the size of the subsample taken from a stratified random sample with proportional allocation – and restricting it to a p-value high enough to achieve a good fit to the population of interest using Pearson’s chi-square goodness-of-fit test. The beauty of the m…
Identification Of Mitotically Competent SOX2+ Cells In White Matter Of Normal Human Adult Brain
2011
AbstractSOX2 expression is linked to the undifferentiated state of stem cells in mammalian neurogenic niches. While its expression has been reported in the adult human subventricular zone (SVZ), to date it has not been detected in adult human white matter. Here we describe a population of SOX2+ cells from the white matter of the adult human temporal lobe, which proliferate and express glial markers in vitro.
Autism spectrum disorders and anxiety: measurement and treatment
2021
Abstract Autism spectrum disorders (ASDs) are a group of neurodevelopmental disorders that have, in common, deficits in communication and social interaction and present repetitive behaviors and restricted interests. There is a great variability of symptoms associated with ASD. Among them, anxiety disorders are perhaps one of the most frequent and most developmentally disruptive in children, youths, and adults, which generate alterations in family life also. The treatments based on cognitive–behavioral therapy (CBT) have the highest scientific evidence. In a population with ASD, both program adaptations and specific programs have been developed. Due to its characteristics, the most studied p…