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Copyright of Medicina (Buenos Aires) is the property of Medicina (Buenos Aires) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista del Museo de Antropología is the property of Museo de Antropologia - IDACOR and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Medicina (Buenos Aires) is the property of Medicina (Buenos Aires) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Mundo de Antes is the property of Revista Mundo de Antes and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista del Museo de Antropología is the property of Museo de Antropologia - IDACOR and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Zephyrus is the property of Ediciones Universidad de Salamanca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Medicina (Buenos Aires) is the property of Medicina (Buenos Aires) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Foro Internacional is the property of El Colegio de Mexico AC and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Española de Documentación Científica is the property of Consejo Superior de Investigaciones Cientificas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The quartile system for the classification of scientific journals is analyzed, through multivariate statistical classification, using data from the official Scopus website in 2019. A sample of 5740 records was taken and four indicators were extracted (CiteScore, Citation Percentage, SJR and Percentile) in addition to the location quartile (Q). The behavior of the indicators was analyzed through descriptive statistics by quartile, in addition to classification through Discriminant Analysis and Artificial Neural Networks. The quartile with the highest indicator dispersion was Q1 and the quartile with the most homogeneous indicators was Q4. Discriminant Analysis showed 97,82% of correctly classified quartiles and 97,23% with RNA. There are magazines that do not adjust to the quartile where it is, according to multivariate statistics. It was observed that the most influential factor in the classification is the Percentile and not the impact indicators. [ABSTRACT FROM AUTHOR]

Copyright of TE & ET: Revista Iberoamericana de Tecnología en Educación y Educación en Tecnología is the property of School of Computer Science, La Pata University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Participation and peaceful coexistence are modeled within the institutional established practices. The aim was to analyze the content of graphic production (drawings) and written, about the participation of public high school students. The technique of drawing and written productions was used to know their conceptualization of participation. The population consisted of 204 students from 5 public secondary schools in Querétaro, México. Results show that graphic representation of participation is circumscribed to the classroom and to verbal forms within the classroom, which was confirmed in the written productions. It becomes necessary that in the diverse contexts were girls and boys develop they are provided with genuine experiences of participation that will allow them to enlarge not only their concept about participating but to enlarge their possibility of actions. [ABSTRACT FROM AUTHOR]

The present study reports on the analysis of the contents of 20 apps and video games, to determine if these can favor the development of cognitive processes involved in initial reading in Spanish. The analysis aims to provide, to the clinical and educational studies, specific information on the type of tasks covered in their contents, to assist in the process of literacy in Spanish. The instruments used for data collection were, direct observation, analysis of content based on the tasks performed in the games and applications, and the classification of these tasks based on the literature on the topic. Structured observation determined that most applications promote reading learning in different levels, and only 4 of them favor writing; among the latter, a game of virtual reality (Minecraft), promotes reading and writing during the activity in the game. The results show the relevance of the analysis of the tasks involved in video games and applications, to determine if they can be used as tools mediators of specific cognitive processes within the formal, non-formal educational environments, and clinical educational environments. [ABSTRACT FROM AUTHOR]

Considering the challenge that the economic, social and ecological systems face -in order to know and mitigate the global climate change-, evidences of the functional structure of mangroves ecological system are presented revisiting the hypothesis presented by Yáñez-Arancibia et al. (1998), and revised latter by Yáñez-Arancibia et al. (2010): "the mangroves as a critical forest habitat of the coastal zone present accommodation responses to the environmental variability that induces global change playing an structural and functional role in the stability of the coastline, the persistence of habitats and biodiversity, the metabolism of the ecosystem, reducing risks and uncertainty for the sustainable development of the use of its resources". Recent evidences indicates that mangroves in the Gulf of Mexico follows this hypothesis and -as answer to climate change and its effects in the coastal zone- shows a consistent pattern of geographical distribution colonizing all over the northern coast of the Gulf, including the Atlantic coast of Florida Peninsula because of the opportunity of "global tropicalization of the Gulf of Mexico". Moreover, at present the four mangrove species in the Gulf of México are distributed in the Texas state U.S. We conclude that mangrove ecosystem is a "sentinel-ecosystem" in front of climate change impact in the Gulf of Mexico. [ABSTRACT FROM AUTHOR]

Copyright of Medicina (Buenos Aires) is the property of Medicina (Buenos Aires) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This article is about Alberto Ruz, the archaeologist who made the remarkable discovery of the tomb of K'inich Janaab' Pakal of Palenque, however it is not about his archaeological discoveries. Instead the article has three themes: the first is Alberto Ruz's political activism against the US puppet governments of Cuba; the second is his contributions to the science of Mexican archaeology; and the third is about his defense of Mexico's archaeological heritage. More specifically, the themes are explored and developed by detailing Ruz's most important ideas that guided his academic work. We outline the theoretical and methodological frameworks he applied and the political struggles in which he participated. We also describe his courageous efforts to protect and to give new life and strength to Maya archaeological heritage. [ABSTRACT FROM AUTHOR]

Copyright of Revista Facultad de Medicina de la Universidad Nacional de Colombia is the property of Universidad Nacional de Colombia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The recent decades have witnessed the emergence of a new generation of indigenous writers, one of the most important cultural phenomena in Latin America. The mission of these authors is the recuperation of their native traditions as an alternative system of ethics for our civilization: a decisive challenge to the modern paradigm of economic expansion. The aim of this essay is to explore the contribution of Mario Molina Cruz, one of the most outstanding contemporary writers in the native languages of Mexico (Nezahualcóyotl Prize 2006), to the current debate on the benefits and threats of globalization. The focus is on his bilingual novel, written in Zapotee and Spanish, Xtille njkrv belé, Ihén bene nhálhje ke Yu' Bza'o/Pancho Culebro y los nahuales de Tierra Azul (2006), which illuminates how the author dialogues with the myth of progress upholding the neoliberal capitalist order, and indigenist myths that idealize native communities. [ABSTRACT FROM AUTHOR]

In previous studies we analyzed the patterns of use and consumption of deer, Blastoceros bezoarticus and Ozotoceros dichotomus, by hunter-gatherer-ishermen that inhabited the coastal Río de La Plata River during the Late Holocene. The purpose of this paper is to analyze the practices of deer processing in Las Marías archaeological site (Magdalena County, Buenos Aires Province, Argentina). This site is located in a coastal environment of shell ridges where native forests develop. The radiocarbon dating of Las Marías site (1820 ± 50 yr BP -Pogonia chromis bone-, and 1590 ± 40 yr BP -Lama guanicoe bone-) suggests that the area was occupied since ca. 1800 years BP. For this study various sources of information were combined: archaeofaunal analysis, the information in the texts of chroniclers and the early archaeological work of synthesis, and inally, the analysis of ceramic technology of the site. This work method has allowed visualizing the tendency to practice an intensive use of deer. The intersection of these ways of analysis allows us to interpret aspects of the social practices of these hunter-gatherer--ishermen societies. [ABSTRACT FROM AUTHOR]

El artículo presenta un discurso sobre las políticas gubernamentales hacia el cambio educativo y la investigación en esta cuestión, enfocando en las políticas acerca de la efectividad y responsabilidad de los profesores. Analizan las reformas educativas seguidas en la Gran Bretaña como un ejemplo radical que puede ofrecer lecciones para otros países.

Paracetamol (acetaminophen) is a well-tolerated drug at therapeutic doses and this safety profile is a major factor in the very wide use of the drug. It is well known that paracetamol is converted by the hepatic cytochrome P450 system to reactive compounds. Less well known is that paracetamol is also metabolized to the same reactive compounds by myeloperoxidase and the peroxidase function of cyclo-oxygenase (COX)-1. The reactive metabolites lead to hepatotoxicity following overdosage. Similar hepatotoxicity has been reported after therapeutic doses, but critical analysis indicates that most patients with alleged toxicity from therapeutic doses have taken overdoses. Associations between the use of paracetamol and chronic renal diseases, gastro-intestinal toxicity and asthma may be due to biases in case-control studies. In particular, biases may be caused by the perceived safety of paracetamol in these diseases. Selective inhibition of the delayed pathway of prostaglandin synthesis is consistent with the gastrointestinal safety of paracetamol and its safety in the majority of aspirin-sensitive asthmatics. Despite the conversion of paracetamol to reactive compounds, hypersensitivity reactions are rare, although urticaria is produced in occasional patients. [ABSTRACT FROM AUTHOR]

In the present experiment, we evaluated the effect of three earthworm species on soil fertility and seedling growth of maize (Zea mays), a food plant of great importance in Mexico. One individual of each species (Balanteodrilus pearsei and Lavellodrilus bonampakensis, two native species and Pontoscolex corethrurus, an exotic), were used in the germination and initial maize growth experiment (vegetative phase v6), with four replicates per treatment and 9 seeds per pot, with 4 kg of soil each. Organic matter contents, total nitrogen and available phosphorus in the soil and in the maize leaves were determined at the end of the experiment. L. bonampakensis significantly increased foliar and root biomass, B. pearsei increased only shoot biomass and P. corethrurus decreased root biomass in relation to the control. Soil organic matter content increased significantly with earthworms, but for the remaining parameters, no significant differences were found between treatments with and without earthworms. Earthworm presence can affect soil fertility and initial maize growth positively, negatively or not at all, depending on the species involved. However, further research is necessary to better understand the relationships between native and exotic tropical earthworm species, plants and the soil. [ABSTRACT FROM AUTHOR]

Objective. To obtain and evaluate information on national oral health policies regarding patients with HIV/AIDS in the countries of the Americas. Methods. A cross-sectional descriptive study was conducted using an online questionnaire designed to be completed by the national oral health officials in the Region. Results. Of the 38 countries that were asked to participate, only 12 (31.6%) completed the questionnaire. Of these 12, eight (66.7%) reported having national policies and strategies in place to promote oral health for the HIV/AIDS patient. Areas of study most explored by the countries over the last 5 years have been: (a) infection control practices; (b) the prevalence of HIV/AIDS-related oral lesions; (c) discrimination toward the HIV-positive patient during dental consultation; and, (d) dental coverage for infected individuals. Among the needs reported by the national officials of this sector were: increasing knowledge of good infection-control practices and HIV advances, development of forums for exchanging ideas and holding online discussions, and having access to information on sources of funding for studies and projects. Conclusions. Despite increased HIV/AIDS incidence and prevalence in the Americas, in general, there do not seem to be any model policies, strategies, or programs that address the issue of oral health and HIV infection. Establishing effective communication between dental health researchers and policymakers is imperative to confronting this epidemic, which increasingly requires more from the highly-trained dental professionals who offer quality of life to the affected population. [ABSTRACT FROM AUTHOR]

Based on Colombia and Venezuela's biological collections, and on a recent literature review, this is the first consolidated species list of decapod crustaceans for the Orinoco River Basin. The freshwater and estuary carcinofauna of the Orinoco Basin includes 79 species of 17 families, of which 35 species are shrimp and 44 are crabs. 46 species strictly inhabit fresh water habitats, 5 species inhabit freshwater-estuarine, and 28 inhabit marine-estuarine. The Palaemonidae shrimp family is the most represented, with 5 genera and 26 species (32.9%). The crabs are grouped in 10 families of which only two are strictly freshwater inhabitants: Trichodactylidae (5 sp.) y Pseudothelphusidae (16 sp.). The list contains information on its geographic distribution, introduced species, habitat and anthropogenic use of each species. [ABSTRACT FROM AUTHOR]