Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 3 de 3
Filtrar
Mais filtros

Tipo de documento
Assunto da revista
País de afiliação
Intervalo de ano de publicação
1.
Salud UNINORTE ; 38(1)ene.-abr. 2022.
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1536782

RESUMO

Introducción: Actualmente la relación hombre-trabajo se encuentra limitada por condiciones de salud, que pueden agravarse frente a la exposición a factores de riesgo. Materiales y métodos: Estudio descriptivo, transversal, diseño no experimental, enfoque cuantitativo, realizado en 1570 consultantes a ingreso laboral, durante el período de octubre de 2019 a marzo de 2020 a nivel local; con una muestra probabilística de 1073, nivel de confianza de 98,00 % y margen de error del 2,00 %. Criterios de inclusión: solicitantes de consulta pre-empleo, mayores de edad, de ambos sexos que aceptaron participar en el estudio; excluidos menores de edad, autorizados por el Ministerio de Trabajo. La recolección de la información se realizó mediante evaluación médico-ocupacional y exámenes complementarios, utilizando equipos biomédicos calibrados y formatos validados por la Institución. El análisis de la información se realizó mediante estadística descriptiva, aplicando media, moda, desviación estándar, tablas y figuras. Se respetaron los principios éticos para la investigación en humanos. Resultados: Edad promedio 32 años, edad mínima de 18 y máxima de 66 años, desviación estándar de 9,2. De los participantes, 51,57 % presentó antecedentes personales patológicos; 47,15 % índice de masa corporal normal, seguido de sobrepeso 11.00 % e hipertensión arterial 1,95 %. La prevalencia de restricciones y aplazamientos laborales fue de 12,86 %, generadas principalmente por enfermedades cardiovasculares, visuales, osteomusculares y digestivas. Conclusiones: Las restricciones y aplazamientos para el ingreso al trabajo guardan correspondencia con las enfermedades que se describen en las estadísticas vitales presentadas en el país y en el departamento de Sucre.


Introduction: Currently the man-work relationship is limited by health conditions, which can be aggravated by exposure to risk factors. Materials and methods: Descriptive, cross-sectional study, non-experimental design with a quantitative approach, carried out in 1570 consultants at work admission, carried out between October 2019 to March 2020; Probabilistic sample of 1073 people, confidence level of 98.00% and margin of error of 2.00 %. Inclusion criteria: applicants for pre-employment consultation, of legal age, both sexes and who consented to participate in the research; minors are excluded, authorized by the Ministry of Labor. The information was collected through occupational medical evaluations and complementary examinations with formats validated by the Institution and calibrated biomedical equipment. The information analysis was carried out with descriptive statistics, using mean, mode, standard deviation, tables, and figures. The ethical principles for research in humans were respected. Results: Average age 32 years, minimum age of 18 and maximum of 66 years, standard deviation of 9.2. 51.57 % of the participants had a personal pathological history, 47.15 % had a normal body mass index, followed by overweight; 11.00% presented arterial hypertension. The prevalence of work restrictions and postponements was 12.86 %, mainly caused by cardiovascular, visual, musculoskeletal, and digestive diseases. Conclusions: The restrictions and postponements for entering work correspond to the diseases described in the vital statistics presented in the country and in the Department of Sucre.

2.
Carbohydr Polym ; 233: 115833, 2020 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-32059886

RESUMO

Glycoscience is an interdisciplinary field, which leads to different industrial applications derived from physicochemical and/or biological properties of carbohydrates. This study aims to evaluate how glycoscience may act as a driving force to make research innovative and sustainable in industrial and/or commercial areas. To this end, we rationalized the two main properties of carbohydrate molecules into three main value chains. The regional biomass (sugar, starch, wood) value-chain exploits the physicochemical properties of carbohydrates; the glycomics explores the biological functions of carbohydrates and the non-regional biomass (microbial, pectin, chitin) value-chain exploits the two properties. Each value-chain harbors one or more niches prone to or at an emerging stage of development, and all these niches share a techno-scientific push approach aimed at developing high value-added products with new functionalities, new bioactive glycans, and new enabling technologies that will lead to new applications and possible novel therapies and diagnostics tools.


Assuntos
Carboidratos/química , Indústria Química/organização & administração , Pesquisa/organização & administração , Animais , Biomassa , Sequência de Carboidratos , Indústria Química/economia , Glicômica , Humanos , Invenções , Microalgas/química , Plantas/química , Pesquisa/economia
3.
Adv Carbohydr Chem Biochem ; 64: 25-116, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20837198

RESUMO

This chapter collates the developments and conclusions of many of the extensive studies that have been conducted on cellulose, with particular emphasis on the structural and morphological features while not ignoring the most recent results derived from the elucidation of unique biosynthetic pathways. The presentation of structural and morphological data gathered together in this chapter follows the historical development of our knowledge of the different structural levels of cellulose and its various organizational levels. These levels concern features such as chain conformation, chain polarity, chain association, crystal polarity, and microfibril structure and organization. This chapter provides some historical landmarks related to the evolution of concepts in the field of biopolymer science, which parallel the developments of novel methods for characterization of complex macromolecular structures. The elucidation of the different structural levels of organization opens the way to relating structure to function and properties. The chemical and biochemical methods that have been developed to dissolve and further modify cellulose chains are briefly covered. Particular emphasis is given to the facets of topochemistry and topoenzymology where the morphological features play a key role in determining unique physicochemical properties. A final chapter addresses what might be considered tomorrow's goal in amplifying the economic importance of cellulose in the context of sustainable development. Selected examples illustrate the types of result that can be obtained when cellulose fibers are no longer viewed as inert substrates, and when the polyhydroxyl nature of their surfaces, as well as their entire structural complexity, are taken into account.


Assuntos
Celulose/química , Animais , Bioengenharia , Configuração de Carboidratos , Parede Celular/química , Parede Celular/metabolismo , Celulose/economia , Celulose/metabolismo
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA