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Search Results: 1 - 10 of 214678 matches for " Ricardo Torrejón "
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CASA CMG, LIMACHE, CHILE
Ricardo Torrejón
ARQ , 2012,
Abstract: Esta es una construcción hecha completamente en obra. Carpinterías de fierro artesanal, muros ventilados revestidos con maderas de demolición y pavimentos de hormigón pulido caracterizan esta estructura materializada sin catálogos. This is a structure built entirely in situ. It comprises handmade metalwork, reclaimed lumber ventilated fa ades and polished concrete pavements: no catalogues were used during its construction.
Calidad de grasa, arterioesclerosis y enfermedad coronaria: efectos de los ácidos grasos saturados y ácidos grasos trans
Torrejón,Claudia; Uauy,Ricardo;
Revista médica de Chile , 2011, DOI: 10.4067/S0034-98872011000700016
Abstract: epidemiological, clinical and metabolic research has shown a strong association between dietary fatty acids intake and cardiovascular disease (cvd) risk factors and clinical events. saturated fatty acids (sfa) and trans fatty acids (tfa) derived from industrial hydrogenation of oils have been associated with an increased prevalence of cvd. however experimental results on the relationship between physiological pathologic effects and specific functions of individual sfa are often contradictory. therefore a more detailed exploration of the potential benefit and risks of specific saturated and trans fatty acids is needed in order to update dietary recommendations. in the case of tfas, the deleterious effect on cvd has been well demonstrated and a maximum accepted level of 1 % of total energy has been agreed internationally. what is currently under discussion is what would be the best alternative to replace them in the diet.
Calidad de grasa, arterioesclerosis y enfermedad coronaria: efectos de los ácidos grasos saturados y ácidos grasos trans Quality of fat intake, atherosclerosis and coronary disease: effects of saturated and trans fatty acids
Claudia Torrejón,Ricardo Uauy
Revista médica de Chile , 2011,
Abstract: Epidemiological, clinical and metabolic research has shown a strong association between dietary fatty acids intake and cardiovascular disease (CVD) risk factors and clinical events. Saturated fatty acids (SFA) and trans fatty acids (TFA) derived from industrial hydrogenation of oils have been associated with an increased prevalence of CVD. However experimental results on the relationship between physiological pathologic effects and specific functions of individual SFA are often contradictory. Therefore a more detailed exploration of the potential benefit and risks of specific saturated and trans fatty acids is needed in order to update dietary recommendations. In the case of TFAs, the deleterious effect on CVD has been well demonstrated and a maximum accepted level of 1 % of total energy has been agreed internationally. What is currently under discussion is what would be the best alternative to replace them in the diet.
ELEMENTAL
Alejandro Aravena,Ricardo Torrejón,Víctor Oddó,Juan Cerda
ARQ , 2012,
Abstract: La habilitación de un paseo público de escala metropolitana y la reconstrucción de un teatro aparecen como dos caras de un mismo impulso. Ambas operaciones ven a la ciudad como una herramienta redistributiva y como oportunidad para fomentar encuentros. Opening a metropolitan promenade and rebuilding a collapsed theater are two sides of the same impulse. Both operations count on the city as redistributive device and as an opportunity to stimulate encounters.
El vocabulario francés de los peinados, los guantes y los afeites en el siglo XVII
Ana Carranza Torrejón
?édille : Revista de Estudios Franceses , 2009,
Abstract: This article analyses a series of terms and expressions employed in seventeenth century French to describe hairdressing, wigs, makeup and gloves. The information presented here comes basically from four poems published in France between 1613 and 1622. Data found in several seventeenthcentury monolingual and bilingual dictionaries,as well as in Simon Barbe’s Le parfumeur fran ois (1693) are incorporated as well. A detailed study of all those works allows for new theories on the semantic evolution in this field of the French lexicon.
Alteraciones del paisaje ecológico araucano por la asimilación mapuche de la agroganadería hispano-mediterránea (siglos XVI y XVII)
TORREJóN,FERNANDO; CISTERNAS,MARCO;
Revista chilena de historia natural , 2002, DOI: 10.4067/S0716-078X2002000400008
Abstract: the bio-geographic characteristics of the temperate america favored the introduction and spreading of exotic plant and animal species that supported the hispanic-mediterranean farming model. the effects of this situation produced ecological alterations on the territories inhabited by indians without intense productive systems; as the araucanía case. through a historical and documental analysis this paper reports the main characteristics of the araucanian ecological landscape disruption process during the 16th and 17th centuries: (i) during the 16th century, the introduction of exotic species dislocated the mapuche economic system, (ii) both the relative araucanía pristine conditions and the warlike process, occurred between the 16th and 17th centuries, favored the introduction and spreading of the new species, (iii) during the 16th century, both natives and exotic species coexisted, but during the next century the exotic species predominated, and (iv) this preponderance would have produced a local extinction of native plants and animals, disrupting definitively the araucanian ecological landscape.
Alteraciones del paisaje ecológico araucano por la asimilación mapuche de la agroganadería hispano-mediterránea (siglos XVI y XVII) Araucanian ecological landscape disturbances by the mapuche assimilation of the Hispanic-Mediterranean farming (16th and 17th centuries)
FERNANDO TORREJóN,MARCO CISTERNAS
Revista chilena de historia natural , 2002,
Abstract: Las características biogeográficas de la América templada favorecieron la introducción y propagación de especies animales y vegetales que sustentaron al modelo agroganadero hispano-mediterráneo. Los efectos de este fenómeno generaron alteraciones ecológicas, especialmente en los territorios habitados por aborígenes carentes de actividades productivas intensivas, como fue el caso de la Araucanía. Mediante un análisis histórico documental, la presente investigación reconoció las principales características del proceso de alteración del paisaje ecológico araucano entre los siglos XVI y XVII: (i) en el siglo XVI, la introducción de especies exóticas desarticuló el sistema económico mapuche, (ii) tanto la relativa pristinidad de la Araucanía como el proceso bélico de los siglos XVI y XVII, favorecieron la introducción y propagación de las nuevas especies, (iii) durante el siglo XVI coexistieron especies nativas e introducidas, sin embargo, durante el siglo XVII preponderaron las exóticas, y (iv) este predominio habría generado la extinción local de especies animales y vegetales nativas, alterando definitivamente el paisaje ecológico araucano The bio-geographic characteristics of the temperate America favored the introduction and spreading of exotic plant and animal species that supported the Hispanic-Mediterranean farming model. The effects of this situation produced ecological alterations on the territories inhabited by Indians without intense productive systems; as the Araucanía case. Through a historical and documental analysis this paper reports the main characteristics of the Araucanian ecological landscape disruption process during the 16th and 17th centuries: (i) during the 16th century, the introduction of exotic species dislocated the Mapuche economic system, (ii) both the relative Araucanía pristine conditions and the warlike process, occurred between the 16th and 17th centuries, favored the introduction and spreading of the new species, (iii) during the 16th century, both natives and exotic species coexisted, but during the next century the exotic species predominated, and (iv) this preponderance would have produced a local extinction of native plants and animals, disrupting definitively the Araucanian ecological landscape.
Intrauterine Adhesions following Conservative Treatment of Uterine Fibroids
Pietro Gambadauro,Johannes Gudmundsson,Rafael Torrejón
Obstetrics and Gynecology International , 2012, DOI: 10.1155/2012/853269
Abstract: Uterine fibroids are common in women of reproductive age and various conservative treatments are available. In order to achieve a successful conservative treatment of fibroids, functional integrity of the uterus is as important as tumor removal or symptoms relief. In this context, intrauterine adhesions must be recognized as a possible complication of conservative management of uterine fibroids, but diagnostic pitfalls might justify an underestimation of their incidence. Hysteroscopic myomectomy can cause adhesions as a result of surgical trauma to the endometrium. The average reported incidence is around 10% at second-look hysteroscopy, but it is higher in certain conditions, such as the case of multiple, apposing fibroids. Transmural myomectomies also have the potential for adhesion, especially when combined with uterine ischemia. Uterine arteries embolization also carries a risk of intracavitary adhesions. Prevention strategies including bipolar resection, barrier gel or postoperative estradiol, might be useful, but stronger evidence is needed. In view of current knowledge, we would recommend a prevention strategy based on a combination of surgical trauma minimization and identification of high-risk cases. Early hysteroscopic diagnosis and lysis possibly represents the best means of secondary prevention and treatment of postoperative intrauterine adhesions. 1. Introduction Uterine fibroids are an extremely common finding in women of reproductive age, and various conservative treatment approaches are available. Indications to conservative treatment might be represented by the patient’s wish to avoid a hysterectomy or to preserve or enhance her reproductive potential. In the latter case, functional integrity of the uterus is as important as the complete removal of the fibroid tumors or symptoms relief, in terms of surgical outcomes and success. Women, undergoing major gynaecological surgery, have a high risk of developing postoperative adhesions of some extent [1]. This circumstance, although commonly considered inevitable, represents a short-/long-term complication of surgery, with important repercussions on patients’ health and quality of life, as well as relevant direct and indirect costs for the healthcare systems [2]. Adhesions in gynecology have a particular relevance, because of the potential impact on reproductive function, on top of the known consequences, such as abdominal/pelvic pain or bowel obstruction. Therefore, medical literature of the last decades has dedicated great attention to the topic of adhesion prevention after “gynaecological
Efectos ambientales de la colonización espa?ola desde el río Maullín al archipiélago de Chiloé, sur de Chile
TORREJóN,FERNANDO; CISTERNAS,MARCO; ARANEDA,ALBERTO;
Revista chilena de historia natural , 2004, DOI: 10.4067/S0716-078X2004000400009
Abstract: the biogeographical characteristics of chiloé limited the introduction and propagation of exotic plants and animals that supported the subsistence and economy of spanish colonies. this in turn limited the rate of occupation and the scarce economic return of land reduced the extent and severity of environmental disturbances produced during the colonisation period. the present investigation analysed historic documentation from xvi, xvii and xviii centuries in order to characterise pre-hispanic environmental conditions and the environmental problems created by the colonist settlement. the adaptation of land-use practices to the region and the evolution of agricultural and forestry bring it by the colonists are described. the principal finding of this research indicates that the environmental impacts generated by the early spanish settlement were primarily at a local level, which meant that the ecological landscape of chiloé during the xviii century retained several of its pristine characteristics
Efectos ambientales de la colonización espa ola desde el río Maullín al archipiélago de Chiloé, sur de Chile Environmental effects of the spanish colonization from de Maullín river to the Chiloé archipelago, southern Chile
FERNANDO TORREJóN,MARCO CISTERNAS,ALBERTO ARANEDA
Revista chilena de historia natural , 2004,
Abstract: Las características biogeográficas de Chiloé limitaron la introducción y propagación de las especies animales y vegetales exóticas que sustentaban la tradicional actividad agropecuaria hispana colonial. Dicho fenómeno condicionó la ocupación y explotación económica del territorio, contribuyendo a mitigar el tipo y extensión de las alteraciones ambientales generadas por el proceso colonizador. A través de un análisis histórico documental, que abarca los siglos XVI, XVII y XVIII, en el presente trabajo se reconocen la situación ambiental prehispánica del territorio e implicancias ambientales del poblamiento colonial; el proceso de adaptación al entorno ecológico y evolución de las actividades productivas desarrolladas por los colonos. Los principales resultados obtenidos indican que no hubo transformaciones ambientales masivas y generalizadas, concluyéndose que los efectos ambientales derivados de la intervención espa ola se evidenciaron principalmente a nivel local, pudiéndose constatar que hacia fines del siglo XVIII el paisaje ecológico de Chiloé aún conservaba muchas de sus características originales The biogeographical characteristics of Chiloé limited the introduction and propagation of exotic plants and animals that supported the subsistence and economy of Spanish colonies. This in turn limited the rate of occupation and the scarce economic return of land reduced the extent and severity of environmental disturbances produced during the colonisation period. The present investigation analysed historic documentation from XVI, XVII and XVIII centuries in order to characterise pre-Hispanic environmental conditions and the environmental problems created by the colonist settlement. The adaptation of land-use practices to the region and the evolution of agricultural and forestry bring it by the colonists are described. The principal finding of this research indicates that the environmental impacts generated by the early Spanish settlement were primarily at a local level, which meant that the ecological landscape of Chiloé during the XVIII century retained several of its pristine characteristics
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