2048
10
20655
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https://www.socictopen.socict.org/files/original/189025c98c266654f9feb5c4e1eb6cc6.pdf
61fc37c6b01b250ffe2522852c5b67b7
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
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The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Study of a population of Biomphalaria tenagophila (Orbigny, 1835) and of schistosomiasis transmission in 'Alto da Boa Vista', Rio de Janeiro Estudo de uma população de Biomphalaria tenagophila (Orbigny, 1835) e da transmissão de esquistossomose no Alto da Boa Vista - RJ
Creator
An entity primarily responsible for making the resource
D. F. Baptista, M. C. Vasconcelos, V. T. Schall
Description
An account of the resource
The present study was performed using data from a Biomphalaria tenagophila population located in a water cress garden in the Alto da Boa Vista region representing an isolated focal point of schistosomiasis in the city of Rio de Janeiro. The density and age structure of this B. tenagophila population and its rate of intection by Schistosoma mansoni were studied for a period of 15 months. The snail population showed seasonal variation in density, with a decrease in number of individual at the begining of the rainy season. At the end of this season, the population consisted mainly of adults (92.8% in May 1985 and 82.8% in April 1986). The population growth curve was logistic and of sigmoidal configuration. Shiscotoma mansoni cercariae were eliminated over a short period of time (March, April and May 1986). The release of cercariae of S. mansoni and of birds seems to depend on environmental temperature, which during certain months would show a daily variation of up to 13ºC, with the lower thermal limit approaching the limit value for sporocyte development.O presente trabalho foi realizado com dados obtidos de uma população de Biomphalaria tenagophila em uma horta de agrião na região do Alto da Boa Vista, foco isolado de esquistossomose na cidade do Rio de Janeiro. Foram feitas observações sobre mudanças sazonais na densidade e estrutura etária da população de B. tenagophila e taxas de infecção desses caramujos pelo Schistosoma mansoni durante um periodo de 15 meses. A população de caramujo mostrou variação sazonal com diminuição do número de animais no ínicio da estação chuvosa, sendo constituída no final desta estação principalmente de adultos (92,8% maio 85 - 82,9% abril 86). A população apresentou uma curva de crescimento logística de configuração sigmoide. A eliminação de cercárias de S. mansoni ocorreu durante curto tempo (março, abral e maio de 85 e abril de 86).A liberação de cercárias de S. mansoni e de ave parece depender da temperatura ambiental que chegou a uma amplitude diária de até 13ºC.
Date
A point or period of time associated with an event in the lifecycle of the resource
1989
Subject
The topic of the resource
Biomphalaria tenagophila, Estrutura Etária, Schistosoma mansoni, age structure, ecology, ecología, horta de agrião, water cress garden
Identifier
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10.1590/S0074-02761989000300006
Source
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Memórias do Instituto Oswaldo Cruz.
Publisher
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Instituto Oswaldo Cruz, Ministério da Saúde
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Microbiology, Arctic medicine. Tropical medicine
Relation
A related resource
<a href="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761989000300006" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02761989000300006</a>
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https://www.socictopen.socict.org/files/original/db5030ab48c5919c88743dca042243ac.pdf
dfa6cbade0c3f52dbbfe77e1dcc2bf13
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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Reseña de 'Cultura y seguridad alimentaria: enfoques conceptuales, contexto global y experiencias locales' de Sergio A. Sandoval Godoy y Juana María Meléndez Torres (coords.)
Creator
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Ricardo López Salazar
Date
A point or period of time associated with an event in the lifecycle of the resource
2011
Source
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Estudios Sociales
Publisher
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Centro de Investigación en Alimentación y Desarrollo
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Social sciences (General), Nutrition. Foods and food supply
Relation
A related resource
<a href="http://www.redalyc.org/articulo.oa?id=41716750012" target="_blank" rel="noreferrer noopener">http://www.redalyc.org/articulo.oa?id=41716750012</a>
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https://www.socictopen.socict.org/files/original/842433deeaa815d49d0f62e97a31f29e.pdf
e4eac9bbfaba70814a68f89ed4cf97b6
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
La industria agroalimentaria en la controversia del desarrollo sustentable
Creator
An entity primarily responsible for making the resource
Alexis Mercado, Karenia Córdova
Description
An account of the resource
El sistema de producción global contraría los postulados del desarrollo sustentable. El creciente consumo de recursos naturales, el incremento de la contaminación, la concentración de la producción en pocas multinacionales y un acceso no equitativo a los alimentos, configuran un escenario desalentador en términos ambientales y sociales. Satisfacer necesidades básicas de la población no ha sido una prioridad de gran parte de la agroindustria, sector que por sus implicaciones, ocupa lugar central en esta controversia. Su carácter estratégico determina que reciba tratamiento preferencial por la mayoría de las naciones. Sin embargo, la implantación de normativas de inocuidad, calidad y ambiente definen trayectorias institucionales y tecnológicas uniformizantes que han contribuido a concentrar la producción y un perfil particular, muy parcial, de asumir el desafío de la sustentabilidad. En este 'orden global' se desarrollan también procesos socio-productivos basados en conocimientos locales y estructuras cooperativas, planteando estilos diferentes de desarrollo y de aproximación a la sustentabilidad.
Date
A point or period of time associated with an event in the lifecycle of the resource
2011
Subject
The topic of the resource
Desarrollo sustentable, industria agroalimentaria, organización industrial
Source
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Estudios Sociales
Publisher
An entity responsible for making the resource available
Centro de Investigación en Alimentación y Desarrollo
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Social sciences (General), Nutrition. Foods and food supply
Relation
A related resource
<a href="http://www.redalyc.org/articulo.oa?id=41719205002" target="_blank" rel="noreferrer noopener">http://www.redalyc.org/articulo.oa?id=41719205002</a>
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https://www.socictopen.socict.org/files/original/473e5509e8a174e6268d518d4c93b9b3.pdf
12f3e27a22bb4245eb06dfb057be5f9d
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Ecoturismo comunitario y conservación ambiental: la experiencia de La Ventanilla, Oaxaca, México
Creator
An entity primarily responsible for making the resource
Ludger Brenner, David Vargas del Río
Description
An account of the resource
Mientras los apoyos financieros y logísticos para promover la conservación en comunidades campesinas e indígenas aumentan, la literatura sobre ecoturismo comunitario, que es una de sus estrategias más destacadas, está llena de contradicciones y suposiciones carentes de respaldo empírico. Particularmente, en lo que se refiere al cambio a largo plazo que esta modificación en las actividades productivas representa. Para analizar tales cuestiones se identificaron y evaluaron las profundas trasformaciones sociopolíticas impulsadas por esta actividad en La Ventanilla: un destino mexicano ubicado en la costa del estado de Oaxaca, y que frecuentemente se menciona como un caso ejemplar por su desarrollo social y ambientalmente equilibrado. En este artículo se presenta un estudio detallado de la ecología política a diferentes escalas geográficas y a lo largo del tiempo. Los resultados contrastan con otras versiones más optimistas que carecen de la visión diacrónica. Más bien, se ilustra un 'choque de trenes institucional' que, paradójicamente, hace más vulnerable la ecología local: menor cohesión social, reciprocidad, sentido de comunidad y confianza mutua, mientras se detonan procesos como la especulación y la desigualdad. Consecuentemente, la intervención de actores externos, aunque bien intencionada, ha agudizado las desigualdades socioeconómicas y debilitado las instituciones locales.
Date
A point or period of time associated with an event in the lifecycle of the resource
2013
Subject
The topic of the resource
Conservación ambiental, Ecologia Política, desarrollo local, ecoturismo comunitario, la ventanilla
Source
A related resource from which the described resource is derived
Estudios Sociales
Publisher
An entity responsible for making the resource available
Centro de Investigación en Alimentación y Desarrollo
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Social sciences (General), Nutrition. Foods and food supply
Relation
A related resource
<a href="http://www.redalyc.org/articulo.oa?id=41725649002" target="_blank" rel="noreferrer noopener">http://www.redalyc.org/articulo.oa?id=41725649002</a>
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https://www.socictopen.socict.org/files/original/1f0e252732414ff4ce411f6f15e612f5.pdf
545d87b3a5a190a306554558a07c38b8
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Tipos de vegetación del llano de Paletará. Cordillera Central Colombia Tipos de vegetación del llano de Paletará. Cordillera Central Colombia
Creator
An entity primarily responsible for making the resource
Restrepo Carla, Duque Andrés
Description
An account of the resource
We studied the vegetation found in the Llano de Paletará, municipality of Coconuco, department of Cauca, Colombia. Based on the physiognomy and floristic composition of the vegetation we identified 8 paramo vegetation types. These units represent the most extensive azonal paramo vegetation types described up to now for the Cordillera Central. Four of the 8 vegetation types are herbaceous ('frailejonal-pajonal' with Espeletia, 'chuscal abierto' with Chusquea,'swamp' with Carex, and 'grassland' with Calamagrostis) , three are bush tickets (thicket with Hypericum, thicket with Ageratina, and thicket with Diplostephium), and one is a forest of low stature (forest with Escallonia). We analyze some aspects of the ecology and distribution of the vegetation types and evaluate their degree of peril and value of conservation. Se estudiaron los tipos de vegetación del Llano de Paletará, municipio de Coconuco, departamento del Cauca, Colombia. Basados en la fisonomía y composición florística de la vegetación identificamos 8 tipos de vegetación, los cuales representan los tipos de vegetación paramunos de carácter azonal más extensos de la Cordillera Central registrados hasta el momento. De los 8 tipos de vegetación, cuatro son de porte herbáceo (''frailejonalpajonal'' con Espeletia. 'chuscal abierto' con Chusquea. 'pantano' con Carex y un 'pajonal' con Calamagrostis), tres son de porte arbustivo (matorral con Hypericum, matorral con Ageratina y matorral con Diplostephium) y uno es de porte arbóreo (bosque con Escallonia). Se analizan algunos aspectos de la ecología y distribución de los tipos de vegetación y se evalúa su grado de amenaza y valor de conservación.
Date
A point or period of time associated with an event in the lifecycle of the resource
1992
Subject
The topic of the resource
Chuscal abierto, Conservación de bosques, Ecología de parámos, Ecosistemas andinos, Frailejonal-pajonal, Hypericum, Pantano, composición florística
Source
A related resource from which the described resource is derived
Caldasia
Publisher
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Universidad Nacional de Colombia
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Science, Botany, Zoology
Relation
A related resource
<a href="http://www.revistas.unal.edu.co/index.php/cal/article/view/35720" target="_blank" rel="noreferrer noopener">http://www.revistas.unal.edu.co/index.php/cal/article/view/35720</a>
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https://www.socictopen.socict.org/files/original/b00c52f4c96546539d93dc00c5d243fd.pdf
5b0666a16ee9a982a12b2bbfcedbd25e
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Verification of alternatives for sustainable onion production (Allium cepa L.) in Cucaita, Boyaca
Creator
An entity primarily responsible for making the resource
Viteri R. Silvio Edgar, Méndez Z. Martha Jeanneth, Villamil C. Jorge Enrique
Description
An account of the resource
<p class='MsoNormal' style='text-align: justify; line-height: normal; margin: 0cm 0cm 0pt; mso-layout-grid-align: none;'><span style='font-family: ';Arial';,';sans-serif';; color: black; font-size: 10pt; mso-ansi-language: EN-US;' lang='EN-US'>In Cucaita, onion production represents the basis of the economy and is concentrated in the valley but as yield declines due to deterioration of the soil, cultivation is shifting to the slopes, where unsustainability is more prominent. The aim of this study was to verify the potential of three alternatives for sustainable farming, using a split plot design on two farms. The alternatives were: 1) bocashi chicken manure, super broth four, fertilizer (BCmSB4F), 2) bocashi cow manure, rhizosphere broth, super broth four, fertilizer (BCmRBSB4F), 3) green manure, rhizosphere broth, super broth four, fertilizer (Gm- RBSB4F) and 4) regional control (RC). This study determined disease incidence, plant height, stem and bulb diameter, healthy and diseased bulb weight and yield. The results indicated that regardless of the alternative, the agro-ecological conditions of the farm are critical to plant health and consequently to crop production. In El Arenal, where disease incidence was lower, the highest values for healthy bulb weight, bulb diameter and yield were revealed. The alternatives only differed in disease incidence at 30 and 45 days after transplant, with the lowest percentages corresponding to the green manure alternative. For revenue, the three alternatives were favorable, especially the BCmRBSB4F alternative which exceeded the RC. The results show that the alternatives GmRBSB4F and BCmRBSB4F have the most potential and are the most viable for sustainable onion production in Cucaita, Boyaca.</span></p>
Date
A point or period of time associated with an event in the lifecycle of the resource
2012
Subject
The topic of the resource
abonos verdes, alternativas sostenibles, bocashi, caldo rizósfera, caldo súper cuatro
Source
A related resource from which the described resource is derived
Agronomía Colombiana
Publisher
An entity responsible for making the resource available
Centro Editorial of Facultad de Ciencias Agrarias, Universidad Nacional de Colombia
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Plant ecology
Relation
A related resource
<a href="http://www.revistas.unal.edu.co/index.php/agrocol/article/view/17627" target="_blank" rel="noreferrer noopener">http://www.revistas.unal.edu.co/index.php/agrocol/article/view/17627</a>
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https://www.socictopen.socict.org/files/original/08052b31ebbd3712bce34ae3a52a6fed.pdf
e12de8a27d2c173a60fb80fd39713519
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
'Sustancia' en el devenir la quimica: dime cómo te buscan y te diré que eres 'Substance' in the evolution of chemistry: tell me how the other is looking for you and I will tell you what you are
Creator
An entity primarily responsible for making the resource
Berta Lucila Henao, María Silvia Stipcich, Marco Antonio Moreira
Description
An account of the resource
Con base en planteamientos de Stephen Toulmin se presentan algunos aspectos del devenir histórico de la Química, en relación con el concepto sustancia. En un recorrido somero y no lineal, el texto intenta mostrar algunas complejas redes que se tejen entre los diversos componentes de lo que Toulmin denomina 'ecología intelectual'; así como los nichos de la racionalidad y la representación, en las dinámicas de la misma. Esta aproximación al devenir del concepto, permite identificar preguntas y problemas que, con diferentes significados, énfasis y matices, aún están vigentes; modelos explicativos con los que se ha pretendido dar respuesta a dichas cuestiones y algunas formas de validación que permiten la aceptación contextual de los mismos. Finalmente, proponemos posibles implicaciones de estos análisis para la enseñanza.Taking into account Stephen Toulmin´s approaches, we will look at some aspects in the historical development of Chemistry connected to the concept of substance. In a superficial and non-linear manner, the text tries to show some complex networks that developed between the diverse components named by Toulmin as 'intellectual ecology', such as the niches of rationality and the representations among them. This aproximation to the outcoming allows to identify the questions and the problems which with different meanings, emphasis and shades are still current; explanatory models which have pretended giving an answer to those questions and some forms of validity which permit the contextual acceptance of them. Finally, we propose possible implications of these analysis to teaching.
Date
A point or period of time associated with an event in the lifecycle of the resource
2009
Subject
The topic of the resource
Representación, Sustancia, argumentación, argumentation, devenir, evolution, racionalidad, rationality, représentation, substance
Identifier
An unambiguous reference to the resource within a given context
10.1590/S1516-73132009000300004
Source
A related resource from which the described resource is derived
Ciência & Educação
Publisher
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Universidade Estadual Paulista
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Education (General)
Relation
A related resource
<a href="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-73132009000300004" target="_blank" rel="noreferrer noopener">http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-73132009000300004</a>
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https://www.socictopen.socict.org/files/original/b56eff1d102ca0be26e73a6235d2e5ef.pdf
8501172eb42fe862c44470c288909a77
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Aproximación matemática a los modelos bioeconómicos: Análisis de caso para el modelo mutualista de Lotka-Volterra
Creator
An entity primarily responsible for making the resource
Víctor David Jaramillo Mejía, Andrés Fernando Jaramillo Mejía, Euclides Díaz Arcos
Description
An account of the resource
Este artículo busca generar una aproximación a los modelos bioeconómicos a partir del análisis teórico-matemático del modelo mutualista de Lotka-Volterra, con el objetivo de demostrar que las relaciones de cooperación entre dos especies son posibles, son una salida a las crisis ambiental y deben ser una alternativa para la sostenibilidad alimentaria, ambiental y humanitaria en todas las comunidades. Para ello se realizará un análisis conceptual del modelo propuesto desde la perspectiva de la bioeconomía y el biodesarrollo; luego, se realizarán los procedimientos matemáticos que posibiliten entender las dinámicas mutualistas propuestas desde el modelo de Lotka–demostrando que dos especies pueden subsistir en armonía bajo condiciones e'cientes de tasas de crecimiento, capacidad de carga y competitividad. Se concluye, que la bioeconomía como un modo de desarrollo alternativo posibilita el progreso de los territorios, señalando la agroecología como ejemplo de trabajo.
Date
A point or period of time associated with an event in the lifecycle of the resource
2014
Subject
The topic of the resource
Biodesarrollo, bioeconomía, modelo mutualista de Lotka– Volterra
Source
A related resource from which the described resource is derived
Tendencias
Publisher
An entity responsible for making the resource available
Universidad de Nariño
Coverage
The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant
Economic theory. Demography, Business
Relation
A related resource
<a href="http://revistas.udenar.edu.co/index.php/rtend/article/view/1642" target="_blank" rel="noreferrer noopener">http://revistas.udenar.edu.co/index.php/rtend/article/view/1642</a>
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https://www.socictopen.socict.org/files/original/f171defb97f8b88f11d1cc6d4e1217c1.pdf
77ce1d5baa3597ce21efabfba0c8cb1a
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Agricultura sostenible
Description
An account of the resource
Dominio científico: Agricultura sostenible
Text
A resource consisting primarily of words for reading. Examples include books, letters, dissertations, poems, newspapers, articles, archives of mailing lists. Note that facsimiles or images of texts are still of the genre Text.
Dublin Core
The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
A name given to the resource
Bases evolutivas y ecológicas de la carcinogénesis humana ¿cuestión de mala suerte?
Creator
An entity primarily responsible for making the resource
Edgar Benítez Sánchez, Armando Ernesto Pérez Cala, Yamilé Hinojosa Rivera
Description
An account of the resource
El cáncer constituye un serio problema de salud a nivel mundial. Las estimaciones, en cuanto a incidencia y mortalidad, no son nada halagüeñas, en especial para los países subdesarrollados. Durante las últimas décadas se han realizado importantes contribuciones a la comprensión de la carcinogénesis humana, sobre todo desde la perspectiva ecológica y evolutiva. Los objetivos del presente trabajo se centran en: destacar las principales hipótesis que desde dicha perspectiva, tratan de explicar la etiología de los tumores malignos, así como adecuar las que, a la luz de los hallazgos recientes o cotejadas con datos empíricos, parecen más factibles. La hipótesis tradicionalmente aceptada se basa en la 'carcinogénesis en múltiples etapas' y explica de manera satisfactoria algunos aspectos del proceso; aunque conlleva a falacias de lógica, como la conclusión que dos tercios de los cánceres humanos obedecen a la 'mala suerte'. Por su parte, la hipótesis de la 'oncogénesis adaptativa' parece adecuarse de manera más realística a las complejas relaciones ecológicas que se establecen entre las células malignas, las células normales y el microambiente celular; capaces de originar fenómenos tan 'inadmisibles', como la cooperación de células normales en la progresión tumoral o la adopción por parte de las células malignas de estrategias evolutivamente estables. De hecho, la oncogénesis adaptativa incluso puede ser extendida al nivel del 'macroambiente' poblacional y social. Su conclusión definitiva no hace más que reiterar la importancia de la prevención como la medida más eficaz para reducir la carga global de enfermedad por cáncer.
Date
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2018
Subject
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carcinogénesis en múltiples etapas, ecología tumoral, oncogénesis adaptativa
Source
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Revista Cubana de Medicina Militar
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ECIMED
Coverage
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Medicine, Medicine (General)
Relation
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<a href="http://www.revmedmilitar.sld.cu/index.php/mil/article/view/93/173" target="_blank" rel="noreferrer noopener">http://www.revmedmilitar.sld.cu/index.php/mil/article/view/93/173</a>
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https://www.socictopen.socict.org/files/original/2097cd3b5a5892c3b2c6ae5ca832b06a.pdf
84479a728a13eaa901b7cbdb501d3ccd
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Title
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Agricultura sostenible
Description
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Dominio científico: Agricultura sostenible
Text
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The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/.
Title
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A questão ecológica: entre a ciência e a ideologia/utopia de uma época
Creator
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Silva Elmo Rodrigues da, Schramm Fermin Roland
Description
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A problemática atual da questão ambiental remete-nos à discussão histórica da racionalidade científica, sobretudo nas sociedades ocidentais contemporâneas, onde o conflito entre a relação homem/meio natural fica evidenciado. Pretendendo dar conta deste conflito, a ecologia constituída como disciplina científica destaca-se como um campo problemático da ciência que busca integrar diversas disciplinas em torno de si. Alguns movimentos sociais, orientando-se por uma 'visão ecologizada' (ecossistêmica) de mundo, partem para denunciar os impactos ambientais oriundos, dentre outros, do modelo tecno-industrial altamente poluidor, consumidor dos recursos naturais e gerador da atual desordem global da biosfera. Esses movimentos, sendo orientados por éticas diferenciadas, reivindicam mudanças do quadro social e ambiental da sociedade atual a fim de garantir as necessidades das futuras gerações.
Date
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1997
Subject
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ecología, meio ambiente, ética ambiental
Source
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Cadernos de Saúde Pública
Publisher
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Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz
Coverage
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Medicine, Public aspects of medicine
Relation
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<a href="http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0102-311X1997000300002" target="_blank" rel="noreferrer noopener">http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0102-311X1997000300002</a>