Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

Through the analysis of the wills of the ecclesiastics inserted in the Testamenta Ecclesiae Portugaliae (between 1071, the year of the restoration of the Archdiocese of Braga, and 1325, the end of the reign of D. Dinis), we intend to identify the changes and continuities in relation to the bridges existing in the territory of the medieval Portugal, as well as to examine their distribution in space, the values and assets left by legacy for the construction or maintenance of these structures and ascertain the existence or not of temporal and spatial tendencies.

This review was intended to cover of the existing publications up to the moment which inform about the ophthalmological affectations of the COVID-19 disease, caused by the new coronavirus or severe acute respiratory syndrome 2 (SARS-CoV-2). It was carried out a search in PubMed/Medline until 28/02/2021, the following publications in English were revised: letters to the editor, clinical cases, bibliographic review and clinical studies. In the search field was included both, the abstract and the title of the publication. As ocular affectations produced by the covid-19 were found the viral conjunctivitis, immune-mediated conjunctivitis, oculomotors paralysis (POM) and uveitis. The possibility of retinopathy is raised. Ophthalmologists are at considerable risk of contracting the COVID-19 due to close contact with the patient, exposure to tears and ocular secretions, as well as the use of equipment and devices capable of get contaminated.

The appropriate educational acting to assist the student diversity in the discipline of Family Dentistry, it can guarantee the formation with quality of the students in the Dentistry career. To design a system of educational actions to assist the student diversity in the classes of the of Family Dentistry in the University of Medical Sciences of Las Tunas. A development investigation, mainly qualitative, before in the institution declared, from September of 2020 to February 2021. The investigation defines like object the process of teaching-learning of the classes of the Family Dentistry and I eat field the educational actions to assist student diversity. The investigation was executed in two stages, dedicated to: to revise documents rectors of the career, thesis, articles, programs and to elaborate the actions.  The system of educational actions to assist the student diversity was structured by a general objective, permanent actions to carry out in the teaching-learning process (related with: educational preparation, integral pedagogic diagnosis, and values formation); and work when planning, to execute and to control the classes. The proposed actions promote the unit of the unit of the instructive, educational and developer, of the cognitive, and affective, of the formation of the knowledge and the values, by means of an integral and personalized didactic system. They intended educational actions to assist the student diversity, in the process teaching-learning of the classes of the discipline Family Dentistry, when planning, to execute and to control. 

Pneumonia is a common and potentially serious infection that has a significant prevalence in childhood and causes more death than any other disease in the world in children under the age of 5. With the aim of characterizing the behavior of severe bacterial pneumonia in children under 1 year, admitted to the pediatric intensive care unit, in the 2nd semester of 2019. A descriptive, observational and retrospective study was conducted this year. The universe consisted of 37 patients who were diagnosed with pneumonia that required hospital admission and the sample was represented by 32 patients who met the inclusion and exclusion criteria. The group of 0-4 months (50%), the male sex (68.8%), the rural area (71.9%), the route of admission by guard corps (56.3%), the hospital stay less than 72 hours in PICU (68.8%) and the independent nursing actions (46.8%), were the most significant findings found. The age group between 0-4 months, male and rural origin predominated in the study. The guard corps was the most widely used route of entry. Patients had a hospital stay of less than 3 days and independent nursing actions in severe bacterial pneumonia were the most widely used.

Hutchinson-Gilford Progeria Syndrome is a disease characterized by premature aging in children, due to a mutation in the Lamina type A, gene involved in cellular mitosis. In the present work, with the aim of spreading the knowledge of this disease, the processes involved in its development, the scientific advances, and the scope of new therapeutic treatments were summarized. The review was carried out by consulting articles in Spanish and English using the Pubmed and Google Academic search engines. The updating of health personnel on congenital genetic diseases is of vital importance to improve their detection, care and management. 

Los debates en la literatura sobre políticas de ciencia, tecnología e innovación (CTI) argumentan la importancia de reconciliar la oferta y la demanda de conocimientos para enfrentar las desigualdades sociales. En este trabajo, problematizamos la oferta y la demanda de conocimientos científicos en el campo de la nanotecnología (NT) agrícola y alimentaria, en el contexto de un cambio en la concepción de la política de CTI que acompaña la llegada del nuevo gobierno federal en el año 2018. Para operacionalizar estas dimensiones, primero realizamos un mapeo de los proyectos de investigación aprobados por el Consejo Nacional de Ciencia y Tecnología en el periodo 2012-2019. Posteriormente, examinamos las demandas de investigación establecidas por el consejo en torno a los sistemas agroalimentarios. Con ello, discutimos las condiciones de posibilidad que tiene la NT agrícola y alimentaria para responder tales demandas. Concluimos que los cambios en la concepción de ciencia significan nuevas prioridades de investigación para los sistemas agroalimentarios del país, entre ellos, contribuir a la soberanía alimentaria y la sustitución de agroquímicos en el campo; pero más aún, plantean retos para reflexionar sobre: ¿cómo podemos hacer para que la NT agrícola y alimentaria contribuya a alcanzar una agricultura justa con los productores rurales y respetuosa con el ambiente?

Micropropagation or in vitro propagation is the asexual propagation of plants using plant tissue culture (PTC) techniques. Despite the advantages of these techniques, the explants contamination, the asepsis in culture medium and the in vitro accumulation of ethylene in some species, have been a problem that affects the micropropagation. The recent application of silver nanoparticles (NPsAg) in micropropagation has become an effective tool for solving these issues. In addition, in laboratory studies it has been showed that NPsAg, at low concentrations, have a dose-respond effect on plant development, define as hormesis. In this article we reviewed the NPsAg effects on contamination reduction, inhibition of ethylene effects and development stimulation during micropropagation. Besides, they are an alternative to others applications in PTC and modern agriculture.

The genodermatoses constitutes a group of genetic diseases with affectation of the skin and their annexes. In Cuba, the National Program of Diagnostic, Attention and Prevention of Genetic diseases, in relation to the genodermatoses, don't have protocols for their diagnosis, treatment and pursuit. The objective of this study is to evaluate a methodology for the attention to the patients with genodermatosis. Was carried out in The Tunas, oriental county of Cuba, a quasi-experimental study, being applied the varying Delphy of the method of experts, being consulted a group of Cuban specialists of dermatology, genetics clinical doctor and pediatrics, with high scientific level and experience in the work with patient with genodermatoses. Being designed the methodology that proposes the protocol of the diagnosis, treatment and pursuit algorithm for these patients. 395 patients were studied assisted in the provincial Department of Medical Genetics. Were studied the prevalence rate, the stocking of cases diagnosed per year, the proportion of presented complications, the index of survival and lethality index and to relate the relating variables to the improvement of the state dermatologic and extracutaneous manifestations the statistical test of square Chi of Mc-Nemar was used, with a significance statistical p≤0,05. After having implemented the methodology, prevailed the neurofibromatosis, Ehlers Danlos syndrome and ichthyosis vulgaris; the stocking of cases diagnosed per year increased; they diminished the complications, prevailing the piodermitis (6.13%); the index of mortality was low (1.27%) with high index of survival (98.73%) and improvement of the manifestations dermatologic (MCNemar X2=90.41558, P=0.000000) and extracutaneous (McNemar X2=24.083334, P=0.000001). The methodology designed for the attention to patient with genodermatoses strengthens the National Program of Diagnostic, Attention and Prevention of Genetic Illnesses, demonstrating to be effective, with bigger number of diagnosed cases, smaller proportion of complications, high survival, low lethality and clinical improvement of the dermatologic and extracutaneous manifestations.

Introduction: in people with diabetes mellitus, ischemic heart disease shows morbidity and mortality 2-4 times higher than that observed in the general population.Objective: to describe the clinical characteristics of patients with diabetes mellitus complicated by ischemic heart disease.Methods: a descriptive cross-sectional study was carried out in 459 patients with diabetes mellitus, treated at the Endocrinology and Cardiology services of the "Carlos Manuel de Céspedes" Provincial General Hospital of the Bayamo municipality, Granma province, since January 1, 2015. until December 31, 2020. Statisticians: Chi Square and Student's T.Results: the frequency of arterial hypertension (0.0000), left ventricular hypertrophy (0.0000), smoking (0.0128) and other vascular complications of diabetes was higher in patients with ischemic heart disease than in those without. have this complication. Likewise, the cases with ischemic heart disease exhibited an age (0.0000), a time of DM (0.0000) and levels of HA1c (0.0002), cholesterol (0.0266), triglycerides (0.0432), ratio cholesterol/HDL (0.0001), microalbuminuria (0.0000) and uric acid (0.0000), significantly higher than those without ischemic heart disease.Conclusions: patients with diabetes complicated by ischemic heart disease have a higher frequency of cardiovascular risk factors than those without this complication. Other research is necessary to determine the role of these factors in the development of the disease.