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Klimentidis Y.C.,Section on Statistical Genetics | Mark Beasley T.,Section on Statistical Genetics | Lin H.-Y.,H. Lee Moffitt Cancer Center and Research Institute | Murati G.,Metropolitan University of Puerto Rico | And 8 more authors.
Proceedings of the Royal Society B: Biological Sciences | Year: 2011

A dramatic rise in obesity has occurred among humans within the last several decades. Little is known about whether similar increases in obesity have occurred in animals inhabiting human-influenced environments. We examined samples collectively consisting of over 20 000 animals from 24 populations (12 divided separately into males and females) of animals representing eight species living with or around humans in industrialized societies. In all populations, the estimated coefficient for the trend of body weight over time was positive (i.e. increasing). The probability of all trends being in the same direction by chance is 1.2 × 10-7. Surprisingly, we find that over the past several decades, average mid-life body weights have risen among primates and rodents living in research colonies, as well as among feral rodents and domestic dogs and cats. The consistency of these findings among animals living in varying environments, suggests the intriguing possibility that the aetiology of increasing body weight may involve several as-of-yet unidentified and/or poorly understood factors (e.g. viral pathogens, epigenetic factors). This finding may eventually enhance the discovery and fuller elucidation of other factors that have contributed to the recent rise in obesity rates. © 2010 The Royal Society. Source


Galan J.G.,Metropolitan University of Puerto Rico
European Journal of Science and Theology | Year: 2015

In this article we offer an analysis of the practical and theoretical paradigm of media education as a fundamental pedagogical model for the adequate development of the current methods of digital literacy. In a society dominated by the flow of information and communicative processes-in which digitalization has led to techno-media convergence, the complete uniting of ICT novelties and traditional media-it is essential to use all the vast experience of basic principles, pedagogical theories and practice which this educational paradigm has offered during decades. The current techno-media society is not an altruistic system; the communicative processes continue to be dominated by economic, political and social elites whose main interest is to influence and control the population. In this context-conceiving education as the only way to achieve the full and democratic development of our society, for its growth in values and solidarity-an analysis of reality starting in school is essential by forming a citizenship conscious of the power and influence of the ICT and its true meaning in the world. An authentic digital literacy should include the correct understanding of the new techno-media languages, and cannot simply be reduced to a formation of a technical and instrumental kind. © 2015, European Journal of Science and Theology. All right reserved. Source


Galan J.G.,Metropolitan University of Puerto Rico
European Journal of Science and Theology | Year: 2015

Chronological and historical time must be present in the instructive processes for its comprehension is fundamental to the education of human beings. Otherwise, the teaching of Social sciences and Humanities at all its academic levels would be impossible. This article has as its principal objective the establishment of a new theoretical framework about the characteristics of the study of time in education. It is defended that the appearance of the social digital offers new mediums and resources that are taking us towards the creation of innovative didactic models in which teaching and the construction of the sense of historical time can be improved considerably. This fact requires an important revision of the current educative theories related to the teaching of time. As the main conclusion, it was established the need for deepening the study of this important problematic in the light of the methodologies used today in the field of digital technologies and in the context of the media education. The development of the understanding of historical and chronological time, independent of cognitive development of the person, must be understood above all as an educative process in which strategies and mediums employed are fundamental. © 2015, Ecozone, OAIMDD. All rights reserved. Source


Miranda M.T.,Metropolitan University of Puerto Rico
Boletín de la Asociación Médica de Puerto Rico | Year: 2013

Multiple Sclerosis (MS) is a complex disease where genetic and environmental factors have been implicated. The onset of symptoms occurs in individuals from twenty to fifty years of age, producing a progressive impairment of motor, sensory and cognitive functions. MS is more frequent in females than in males with a ratio of 4:1. The prevalence of the MS varies among ethnics groups such as Europeans, Africans and Caucasians. The estimated prevalence of MS in Puerto Rico is 42 for each 100,000 habitants, which is more than the prevalence reported for Central America and the Caribbean. In spite of this prevalence, the genetic component of MS has not been explored in order to know the alleles' expression of Puerto Rican MS patients and compare it with the allele expression in other ethnic groups. Thirty-five patients and 31 control subjects were genotyped. The allele frequencies expressed in this sample were similar to those expressed for Puerto Ricans in the National Marrow Donor Program Registry (n = 3,149). The most prevalent alleles for MS patients were HLA-DRB1*01 and *03. HLA-DQB1*04 was the most frequent in the control group and HLA-A*30, in MS patients. These findings are in agreement with published data. HLA-DQB1*04 was a marginal protector in this sample and this role has not been described before. The accuracy of the results is limited due to the sample size. After performing a statistical power analysis it showed that by increasing the sample the values would be significant. Source


Bergland M.,University of Wisconsin - River Falls | Klyczek K.,University of Wisconsin - River Falls | Lin C.-C.,Winona State University | Lundeberg M.,University of Wisconsin - River Falls | And 4 more authors.
Science | Year: 2012

Case It!, an IBI prize-winning module, provides computer simulations that enable student analysis of biological materials not usually available in laboratories. Source

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