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Sample records for barbadensis miller como

  1. EL ALOE VERA (ALOE BARBADENSIS MILLER) COMO COMPONENTE DE ALIMENTOS FUNCIONALES

    OpenAIRE

    Vega G, Antonio; Ampuero C, Nevenka; Díaz N, Luis; Lemus M, Roberto

    2005-01-01

    Debido a la preocupación e interés actual de la población por las condiciones de salud y calidad de vida, es que ha aumentado la demanda de productos naturales, lo cual hace que las industrias farmacéuticas y de los alimentos centren sus esfuerzos en investigaciones relacionadas con su utilización. Una de las materias primas de gran demanda, tanto en el mercado externo como en el nacional, es el Aloe vera, vegetal del cual se pueden obtener productos con fines cosmetológicos, farmacéuticos y ...

  2. ALOE VERA BARBADENSIS MILLER AS AN ALTERNATIVE TREATMENT FOR CHILDREN WITH FEVER

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    Siti Choirul Dwi Astuti

    2017-10-01

    Full Text Available Background: Applying a cooling treatment from outside the body is one way to lower fever in children. Midwives commonly perform a warm water compress in their care, but it is considered less effective. Thus, compress with aloe vera barbadensus miller is proposed in this study as an alternative treatment. Objective: To examine the effect of Aloe vera barbadensis miller compress in reducing body temperature in children with fever. Methods: This was a quasi-experimental study with pretest and posttest with control group design. Forty children were recruited, with twenty of them assigned in each group. Purposive sampling was performed to select the sample. A digital rectal thermometer was used to measure the temperature. Independent t- test and paired test were used for data analysis. Results: Findings showed that the aloe vera compress group showed a higher decrease of body temperature compared to the warm water compress group. The difference of body temperature after 20 minutes in the experiment group was 1.435 while in the control group was only 1.085. There were statistically significant differences in body temperature between the experiment and control group (p=0.013. Conclusion: Aloe vera barbadensis miller compress is an effective alternative therapy in reducing body temperature in children with fever. It is recommended for midwives to apply this intervention to reduce body temperature significantly.

  3. Topical Aloe Vera (Aloe barbadensis Miller) Extract Does Not Accelerate the Oral Wound Healing in Rats.

    Science.gov (United States)

    Coelho, Fernanda Hack; Salvadori, Gabriela; Rados, Pantelis Varvaki; Magnusson, Alessandra; Danilevicz, Chris Krebs; Meurer, Luise; Martins, Manoela Domingues

    2015-07-01

    The effect of topical application of Aloe Vera (Aloe barbadensis Miller) extract was assessed on the healing of rat oral wounds in an in vivo model using 72 male Wistar rats divided into three groups (n = 24): control, placebo and Aloe Vera (0.5% extract hydroalcoholic). Traumatic ulcers were caused in the dorsum of the tongue using a 3-mm punch tool. The Aloe Vera and placebo group received two daily applications. The animals were sacrificed after 1, 5, 10 and 14 days. Clinical analysis (ulcer area and percentage of repair) and histopathological analysis (degree of re-epithelialization and inflammation) were performed. The comparison of the differences between scores based on group and experimental period, both in quantitative and semi-quantitative analyses, was performed using the Kruskal-Wallis test. The significance level was 5%. On day 1, all groups showed predominantly acute inflammatory infiltrate. On day 5, there was partial epithelialization and chronic inflammatory infiltrate. On the days 10 and 14 total repair of ulcers was observed. There was no significant difference between groups in the repair of mouth ulcers. It is concluded that treatment using Aloe Vera as an herbal formulation did not accelerate oral wound healing in rats. Copyright © 2015 John Wiley & Sons, Ltd.

  4. Structural Modifications of Fructans in Aloe barbadensis Miller (Aloe Vera) Grown under Water Stress.

    Science.gov (United States)

    Salinas, Carlos; Handford, Michael; Pauly, Markus; Dupree, Paul; Cardemil, Liliana

    2016-01-01

    Aloe barbadensis Miller (Aloe vera) has a Crassulaceae acid metabolism which grants the plant great tolerance to water restrictions. Carbohydrates such as acemannans and fructans are among the molecules responsible for tolerating water deficit in other plant species. Nevertheless, fructans, which are prebiotic compounds, have not been described nor studied in Aloe vera, whose leaf gel is known to possess beneficial pharmaceutical, nutritional and cosmetic properties. As Aloe vera is frequently cultivated in semi-arid conditions, like those found in northern Chile, we investigated the effect of water deficit on fructan composition and structure. For this, plants were subjected to different irrigation regimes of 100%, 75%, 50% and 25% field capacity (FC). There was a significant increase in the total sugars, soluble sugars and oligo and polyfructans in plants subjected to water deficit, compared to the control condition (100% FC) in both leaf tips and bases. The amounts of fructans were also greater in the bases compared to the leaf tips in all water treatments. Fructans also increase in degree of polymerization with increasing water deficit. Glycosidic linkage analyses by GC-MS, led to the conclusion that there are structural differences between the fructans present in the leaves of control plants with respect to plants irrigated with 50% and 25% FC. Therefore, in non-stressed plants, the inulin, neo-inulin and neo-levan type of fructans predominate, while in the most stressful conditions for the plant, Aloe vera also synthesizes fructans with a more branched structure, the neofructans. To our knowledge, the synthesis and the protective role of neo-fructans under extreme water deficit has not been previously reported.

  5. Efek Pemberian Ekstrak Lidah Buaya (Aloe Barbadensis Miller pada Soket Gigi terhadap Kepadatan Serabut Kolagen Pasca Ekstraksi Gigi Marmut (Cavia Porcellus

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    Fatma Yuza

    2014-12-01

    sockets density of collagen were observed using light microscope 400x magnification. Analyzing data is done by Kruskal-Wallis test followed by Post Hoc test using the Mann-Whitney test for comparing collagen density between groups. Statistically results between groups showed that the extract of 90% Aloe barbadensis Miller affected the formation of collagen fibers when compared to the control group (p <0.05 on day 7 after tooth extraction of guinea pig. The conclusion of this study was 90% Aloe barbadensis Miller extract increased the density of collagen fibers from the tooth socket seven days after tooth extraction of guinea pig.

  6. Revisión de la aloe vera (Barbadensis Miller en la dermatología actual Revision Of Aloe Vera (Barbadensis Miller In Actual Dermatology

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    GM Ferraro

    2009-12-01

    Full Text Available El Aloe vera es una planta de uso popular en el tratamiento de algunas enfermedades de la piel y de aplicación frecuente en la cosmetología. Forma parte de diversas cremas o geles, siendo usado como antiinflamatorio y reconstituyente del tejido epitelial. Aunque se conocen varios mecanismos de acción e indicaciones clínicas, se debe realizar una revisión de las mismas para su uso, avalados por ensayos controlados para determinar su eficacia real.The Aloe vera is a popular plant used in the treatment of certain skin diseases that has a frequent application in cosmetology. It forms a part of diverse creams or gels, being used as anti-inflammatory and restorative of epithelial tissue. Although there are several mechanisms of action and clinical indications, a review of its use should be done supported by controlled trials to determine its effectiveness.

  7. Clear Evidence of Carcinogenic Activity by a Whole-Leaf Extract of Aloe barbadensis Miller (Aloe vera) in F344/N Rats

    Science.gov (United States)

    Boudreau, Mary D.

    2013-01-01

    Aloe barbadensis Miller (Aloe vera) is an herbal remedy promoted to treat a variety of illnesses; however, only limited data are available on the safety of this dietary supplement. Drinking water exposure of F344/N rats and B6C3F1 mice to an Aloe vera whole-leaf extract (1, 2, and 3%) for 13 weeks resulted in goblet cell hyperplasia of the large intestine in both species. Based upon this observation, 2-year drinking water studies were conducted to assess the carcinogenic potential of an Aloe vera whole-leaf extract when administered to F344/N rats (48 per sex per group) at 0.5, 1, and 1.5%, and B6C3F1 mice (48 per sex per group) at 1, 2, and 3%. Compared with controls, survival was decreased in the 1.5% dose group of female rats. Treatment-related neoplasms and nonneoplastic lesions in both species were confined primarily to the large intestine. Incidences of adenomas and/or carcinomas of the ileo-cecal and cecal-colic junction, cecum, and ascending and transverse colon were significantly higher than controls in male and female rats in the 1 and 1.5% dose groups. There were no neoplasms of the large intestine in mice or in the 0 or 0.5% dose groups of rats. Increased incidences of mucosa hyperplasia of the large intestine were observed in F344/N rats, and increased incidences of goblet cell hyperplasia of the large intestine occurred in B6C3F1 mice. These results indicate that Aloe vera whole-leaf extract is an intestinal irritant in F344/N rats and B6C3F1 mice and a carcinogen of the large intestine in F344/N rats. PMID:22968693

  8. Marked improvement of thyroid function and autoimmunity by Aloe barbadensis miller juice in patients with subclinical hypothyroidism

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    Daniela Metro

    2018-03-01

    Full Text Available Some natural compounds decrease serum levels of thyroid autoantibodies, but results are inconsistent and thyroid function has been evaluated infrequently; moreover, the effects of Aloe on thyroid autoimmunity and function have been examined in very few studies. This study stems from the observation of one co-author, who has Hashimoto’s thyroiditis (HT-related subclinical hypothyroidism (SCH. Upon checking her biochemical thyroid panel when taking daily Aloe barbardensis Miller juice (ABMJ for thyroid-unrelated reasons, she noticed a decrease in serum thyroperoxidase autoantibodies (TPOAb and thyrotropin (TSH and an increase in serum free thyroxine (FT4. Based on this observation, we enrolled 30 consecutive HT women with levothyroxine-untreated SCH and high TPOAb levels. All of them took ABMJ (50 ml daily for nine months and were tested for serum TSH, FT4, free triiodothyronine (FT3 and TPOAb. Measurements were performed at baseline and at months 3 and 9. TSH, FT4 and TPOAb improved significantly already at month 3 and further (−61%, +23% and −56% at month 9. However, FT3 decreased significantly at month 3 (−16% with no further decrease at month 9, so that the FT4:FT3 ratio increased significantly (+33% and + 49%. At baseline, 100% of women had TSH > 4.0 mU/L and TPOAb > 400 U/ml, but frequencies fell to 0% and 37%, respectively, at month 9. In contrast, a control group (namely, 15 untreated SCH women of comparable age and baseline levels of TSH, FT4, FT3 and TPOAb had no significant changes in any index. We conclude that the daily intake of 100 ml ABMJ for 9 months in women with HT-related SCH decreases the burden of thyroid autoimmune inflammation. In addition, ABMJ rescues thyrocyte function, with decreased need for conversion of the prohormone T4 into the more active T3 through ABMJ-induced inhibition of T4 deiodination. Keywords: Aloe vera, Subclinical hypothyroidism, Thyroid autoimmunity, Thyroid function

  9. Toxicology and carcinogenesis studies of a nondecolorized [corrected] whole leaf extract of Aloe barbadensis Miller (Aloe vera) in F344/N rats and B6C3F1 mice (drinking water study).

    Science.gov (United States)

    Boudreau, M D; Beland, F A; Nichols, J A; Pogribna, M

    2013-08-01

    Extracts from the leaves of the Aloe vera plant (Aloe barbadensis Miller) have long been used as herbal remedies and are also now promoted as a dietary supplement, in liquid tonics, powders or tablets, as a laxative and to prevent a variety of illnesses. We studied the effects of Aloe vera extract on rats and mice to identify potential toxic or cancer-related hazards. We gave solutions of nondecolorized extracts of Aloe vera leaves in the drinking water to groups of rats and mice for 2 years. Groups of 48 rats received solutions containing 0.5%, 1% or 1.5% of Aloe vera extract in the drinking water, and groups of mice received solutions containing 1%, 2%, or 3% of Aloe vera extract. Similar groups of animals were given plain drinking water and served as the control groups. At the end of the study tissues from more than 40 sites were examined for every animal. In all groups of rats and mice receiving the Aloe vera extract, the rates of hyperplasia in the large intestine were markedly increased compared to the control animals. There were also increases in hyperplasia in the small intestine in rats receiving the Aloe vera extract, increases in hyperplasia of the stomach in male and female rats and female mice receiving the Aloe vera extract, and increases in hyperplasia of the mesenteric lymph nodes in male and female rats and male mice receiving the Aloe vera extract. In addition, cancers of the large intestine occurred in male and female rats given the Aloe vera extract, though none had been seen in the control groups of rats for this and other studies at this laboratory. We conclude that nondecolorized Aloe vera caused cancers of the large intestine in male and female rats and also caused hyperplasia of the large intestine, small intestine, stomach, and lymph nodes in male and female rats. Aloe vera extract also caused hyperplasia of the large intestine in male and female mice and hyperplasia of the mesenteric lymph node in male mice and hyperplasia of the stomach

  10. Chemical and physical properties of aloe vera (Aloe barbadensis Miller gel stored after high hydrostatic pressure processing Propriedades químicas e físicas do gel de aloe vera (Aloe barbadensis Miller armazenado após processamento sob alta pressão hidrostática

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    Karina Di Scala

    2013-03-01

    Full Text Available The aim of this study was to evaluate the influence of high hydrostatic pressure (150, 250, 350, 450, and 550 MPa, applied for 5 minutes, on antioxidant capacity, total phenolic content, color, firmness, rehydration ratio, and water holding capacity of aloe vera gel stored for 60 days at 4 °C. The analyzed properties of the pressurized gel showed significant changes after the storage period. The highest value of total phenolic content was found at 550 MPa. However, a decrease in the antioxidant capacity was observed for all pressurized gel samples when compared to the control sample (p O objetivo deste estudo foi avaliar o efeito da aplicação de altas pressões hidrostáticas (150, 250, 350, 450 e 550 MPa aplicadas durante 5 minutos sobre a atividade antioxidante, concentração de polifenóis totais, cor, firmeza, taxa de reidratação e capacidade de retenção de água do gel de aloe vera armazenado durante 60 dias a 4 °C. As propriedades analisadas do gel pressurizado mostraram mudanças significativas depois de armazenadas. Para pressões de 550 Mpa, registrou-se o maior aumento de polifenóis totais. No entanto, observou-se uma diminuição da capacidade antioxidante em todas as amostras, em comparação com a amostra não tratada (p < 0,05. As alterações de cor foram menores para pressões entre 150 e 250 MPa. A aplicação de altas pressões hidrostáticas diminuiu a firmeza do gel, registrando-se o menor valor para 150 MPa (p < 0,05. Por outro lado, o tratamento sem pressão mostrou uma maior perda de firmeza, indicando que o tratamento por altas pressões conserva esta propriedade. A aplicação de altas pressões evidenciou modificações da matriz do alimento, avaliadas como taxa de reidratação e capacidade de retenção de água.

  11. Bioprospección de hongos micorrízicos arbusculares como alternativa para el fortalecimiento del cultivo de aguacate (Persea americana Miller en Colombia

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    Sandra Patricia Montenegro Gómez

    2017-06-01

    Full Text Available El Aguacate (Persea americana Miller es uno de los frutos de mayor consumo mundial. México es el principal productor y  actualmente afronta problemas como el ataque de patógenos a la raíz y recientemente se han registrado impactos en la salud humana por uso de agroquímicos. Una alternativa para afrontar problemáticas en el desarrollo de las plantas ha sido iniciar el correcto manejo de las primeras etapas de producción y con ello mitigar problemas posteriores, en este manejo los microorganismos juegan un papel fundamental. Uno de los métodos es la inoculación con microorganismos del suelo como los hongos micorrízicos arbusculares (HMA; diversos estudios han demostrado que su colonización radicular en las plantas contribuye con la absorción de agua y nutrientes; lo cual indica que su potencialización puede contribuir en el manejo sustentable de los cultivos y como opción para fortalecer la producción. Colombia ocupa el quinto lugar en productividad a nivel mundial y lo que más resta competitividad local es el costo de los agroinsumos; en este sentido se podrían fortalecer investigaciones encaminadas a la bioprospección de HMA específicos para diversas variedades de aguacate en las regiones colombianas, ya que son poco los avances en esta temática. Avanzar tecnológicamente en el manejo de cultivos y generar estrategias sostenibles hace parte de las perspectivas y retos de la cadena del aguacate en Colombia. Adicionalmente es prioritario entrar en la dinámica de la demanda mundial con preferencia de alimentos más sanos y cuya producción sea amigable con el medio ambiente.

  12. Elisa Miller | NREL

    Science.gov (United States)

    Elisa Miller Photo of Elisa Miller Elisa Link-Miller Researcher III-Chemistry Elisa.Miller@nrel.gov | 303-384-6777 Dr. Elisa Miller-Link studies the surface of semiconductors that are applicable for , and other nanocrystalline films. Elisa came to NREL in 2013 as an NREL Director's Fellowship recipient

  13. Estudio de los metabolitos secundarios exudados por las hojas de Aloe barbadensis

    OpenAIRE

    López González, Germán

    2016-01-01

    Debido a las numerosas propiedades terapéuticas Aloe Barbadensis, como cicatrizantes, hidratantes digestivas o anti-inflamatorias; se plantea el estudio, aislamiento y determinación estructural de los componentes de su exudado. Este se obtiene al hacer un corte en la hoja, y contiene principalmente antraquinonas y glicósidos de antronas, algunos de ellos con actividad anti-cancerígena reportada. Se realizará también un estudio biodirigido del mismo y se utilizarán técnicas como la resonancia ...

  14. Antioxidant activity of the exudate from Aloe barbadensis leaves in ...

    African Journals Online (AJOL)

    Dr. J. T. Ekanem

    ... peroxidation products levels. Keywords: Diabetes, Aloe barbadensis, oxidative stress, Antioxidant enzymes ... Many minor components of foods, such as secondary plant ... different doses of the extract to 5 groups of rats. (6 rats per group).

  15. Antioxidant activity of the exudate from Aloe barbadensis leaves in ...

    African Journals Online (AJOL)

    The effects of the exudate of Aloe barbadensis leaves on oxidative stress and some antioxidant status of streptozotocin induced - diabetic rats were studied. There was significant reduction in scavenging enzymes like superoxide dismutase (SOD) activity and significant increase in signs of oxidative tissue damage, such as ...

  16. Influence of Polysaccharides from Aloe vera (Aloe barbadensis Miller, Liliaceae on Mechanically Induced Cough in Cats

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    Martina Šutovská

    2010-01-01

    Full Text Available Different plants have been reported to be a source of polysaccharides that possess a great variety of biological activities, including cough suppression. The experiments were aimed on the influence of two polysaccharides isolated from the gel (A, HF1-Z and one from the epidermis (SL-1 of Aloe vera leaves, characterized by chemical composition and structural properties, on the cough reflex. The method of mechanically induced cough was used in conscious cats. A nylon fibre directed individually into the mucous area of the laryngopharyngeal and tracheobronchial airways via endotracheal cannula elicited the cough reflex. Statistical evaluation registered cough reflex indicators (number of cough efforts - NE, cough frequency - NE min–1 intensity of cough attacks during expiration and inspiration - IA+ and IA-, intensity of maximal inspiratory and expiratory cough efforts - IME- and IME+ showed that gel polysaccharide HF1-Z possessed higher cough-suppressing activity than dropropizine, a nonnarcotic peripheral cough suppressant. Their antitussive activity was accompanied mainly with a decrease of NE, IA+ and IA- from both laryngopharyngeal and tracheobronchial mucous areas of the airways. Results of the presented study also showed minimal influence of polysaccharide HF1-Z on expectoration predictor, IME- and IME+. New pharmacodynamic property of polysaccharides isolated from Aloe vera was shown during experiments, which could be a base of their possible therapeutic use in this indication in future.

  17. Acemannan and Fructans from Aloe vera (Aloe barbadensis Miller) Plants as Novel Prebiotics.

    Science.gov (United States)

    Quezada, Maria Paz; Salinas, Carlos; Gotteland, Martin; Cardemil, Liliana

    2017-11-22

    The nutraceutical properties of Aloe vera have been attributed to a glucomannan known as acemannan. Recently information has been published about the presence of fructans in Aloe vera but there are no publications about acemannan and fructans as prebiotic compounds. This study investigated in vitro the prebiotic properties of these polysaccharides. Our results demonstrated that fructans from Aloe vera induced bacterial growth better than inulin (commercial FOS). Acemannan stimulated bacterial growth less than fructans, and as much as commercial FOS. Using qPCR to study the bacterial population of human feces fermented in a bioreactor simulating colon conditions, we found that fructans induce an increase in the population of Bifidobacterium spp. Fructans produced greater amounts of short chain fatty acids (SCFA), while the branched-chain fatty acids (BCFA) did not increase with these polysaccharides. Acemannan increased significantly acetate concentrations. Therefore, both Aloe vera polysaccharides have prebiotic potentials.

  18. Gamma irradiation improves the antioxidant activity of Aloe vera (Aloe barbadensis miller) extracts

    International Nuclear Information System (INIS)

    Lee, Eun Mi; Bai, Hyoung-Woo; Lee, Seung Sik; Hong, Sung Hyun; Cho, Jae-Young; Byung, Yeoup Chung

    2012-01-01

    Aloe has been widely used in food products, pharmaceuticals, and cosmetics because of its aromatic and therapeutic properties. In the present study, the ethanolic extracts of aloe gel were gamma-irradiated from 10 to 100 kGy. After gamma irradiation, the color of the ethanolic extracts of aloe gel changed to red; this color persisted up to 40 kGy but disappeared above 50 kGy. Liquid chromatography/mass spectrometry analysis demonstrated the production of a new, unknown compound (m/z=132) after gamma irradiation of the ethanolic extracts of aloe gel. The amount of this unknown compound increased with increasing irradiation up to 80 kGy, and it was degraded at 100 kGy. Interestingly, it was found that gamma irradiation significantly increased the antioxidant activity, as measured by the 1,1-diphenyl-2-picrylhydrazyl-radical scavenging capacity. The antioxidant activity of aloe extract was dramatically increased from 53.9% in the non-irradiated sample to 92.8% in the sample irradiated at 40 kGy. This strong antioxidant activity was retained even at 100 kGy. These results indicate that gamma irradiation of aloe extract can enhance its antioxidant activity through the formation of a new compound. Based on these results, increased antioxidant activity of aloe extracts by gamma rays can be applied to various industries, especially cosmetics, foodstuffs, and pharmaceuticals.

  19. Gamma irradiation improves the antioxidant activity of Aloe vera (Aloe barbadensis miller) extracts

    Science.gov (United States)

    Mi Lee, Eun; Bai, Hyoung-Woo; Sik Lee, Seung; Hyun Hong, Sung; Cho, Jae-Young; Yeoup Chung, Byung

    2012-08-01

    Aloe has been widely used in food products, pharmaceuticals, and cosmetics because of its aromatic and therapeutic properties. In the present study, the ethanolic extracts of aloe gel were gamma-irradiated from 10 to 100 kGy. After gamma irradiation, the color of the ethanolic extracts of aloe gel changed to red; this color persisted up to 40 kGy but disappeared above 50 kGy. Liquid chromatography/mass spectrometry analysis demonstrated the production of a new, unknown compound (m/z=132) after gamma irradiation of the ethanolic extracts of aloe gel. The amount of this unknown compound increased with increasing irradiation up to 80 kGy, and it was degraded at 100 kGy. Interestingly, it was found that gamma irradiation significantly increased the antioxidant activity, as measured by the 1,1-diphenyl-2-picrylhydrazyl-radical scavenging capacity. The antioxidant activity of aloe extract was dramatically increased from 53.9% in the non-irradiated sample to 92.8% in the sample irradiated at 40 kGy. This strong antioxidant activity was retained even at 100 kGy. These results indicate that gamma irradiation of aloe extract can enhance its antioxidant activity through the formation of a new compound. Based on these results, increased antioxidant activity of aloe extracts by gamma rays can be applied to various industries, especially cosmetics, foodstuffs, and pharmaceuticals.

  20. Arthur Miller's Death of a Salesman

    OpenAIRE

    Apolinário, Valdemar dos Passos

    2001-01-01

    Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em Letras/Inglês e Literatura Correspondente Investiga como as questões político-sociais atingiram as personagens de Arthur Miller na peça Death of a Salesman, contribuindo para moldar suas personalidades e determinando o seu destino. Mostra que, para Arthur Miller, Benjamin Franklin foi a principal fonte de inspiração no seu retrato das preocupações políticas, da c...

  1. effect of aloe barbadensis on the lipid profile and fasting blood sugar ...

    African Journals Online (AJOL)

    Our results bring to the fore again, the link between hyperlipidemia (coronary heart disease) and increased sugar concentration in the body (diabetes) and show that Aloe barbadensis has protective effects against these two pathological states. KEY WORDS: Aloe barbadensis; hypercholesterolemia; fasting blood sugar; ...

  2. Millerism - an historical enigma?

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    Ingemar Lindén

    1975-01-01

    Full Text Available It is a wellknown fact in history that strong bias in the writers and a wishful thinking radically prevent the analysis of any event or religious activity. For this reason Catholic ecclesiastical writers of the old school distorted the role of Martin Luther and his movement; likewise the Radical Reformation fared badly in old handbooks, whether they were composed by Catholics or Lutherans. Again the same principle applies to many of the modern "sects" in America and in Europe. Millerism is an excellent case for illustrating this unfelicitious type of writing. The layman-evangelist William Miller (1782-1849 claimed that the world would never be converted; only the second coming of Christ could usher in the millennium. In order to obtain a better understanding of Millerism, the movement should be divided into three main periods, which differed in character. At first, Miller's own development needs to be ascertained. Though he lacked any thorough intellectual training and remained an autodidact, he nevertheless belonged to the wide range of middle class Yankees. To be sure, Miller lived not too far from the famous frontier in his youth, but despite preconceived ideas in some writers, Miller had his cultural roots in the built-up areas of a New England society. The second important stratum in his personality was the warm Baptist revivalism, which prevailed in his home. Deism and revivalism thus contended for the supremacy of his soul; admitting the later dominance of evangelical revivalism, reason and order continued to hold a place in his mental set-up.

  3. In vitro and biotransformational studies of aloe barbadensis mill

    International Nuclear Information System (INIS)

    Badar, Z.; Khan, S.; Ali, S.K.; Choudhary, M.I.

    2014-01-01

    Tissue culture technology can play an important role in the yield improvement of active ingredients of medicinal plants. In the present study, the potential of regeneration system of Aloe barbadensis along with biotransformational ability was explored. The maximum calli (5.65+-1.90; fresh weight) were induced under the dark condition on MS (Murashige and Skoog) medium supplemented with 2.0 mg/L of NAA (alpha-naphthaleneacetic acid), as compared to light. The highest number of shoots (12.725) were proliferated on MS regeneration medium, containing 1.0 mg/L of BAP (6-Benzyl Aminopurine) and 0.1 mg/L of IBA (Indole-3-Butyric Acid) incubated at 22 +- 2 degree C and 16/8 hr photoperiod provided by white fluorescent tube lights. These plantlets were then transferred onto root inducing medium and maximum number of roots (8.0 +- 0.70) with longer length (6.38 +- 0.34 cm) acquired at 1.0 mg/L of IBA within 14-20 days. The regenerated plants were shifted to green house for acclimatization. Effect of plant growth regulators and light was also assessed on callus cultures produced from conventionally propagated and in-vitro regenerated A. barbadensis plants. Biotransformation ability of Aloe barbadensis cell suspension culture was studied by incubation with (+)-adrenosterone (1), which afforded three products; D1-2-dehydroadrenosterone (2), 5a-androst-1-ene-3, 11, 17-trione (3) and 17b-hydroxyandrost-4-ene-3, 11-dione (4). These metabolites were structurally characterized on the basis of spectroscopic techniques. (author)

  4. Green synthesis and characterization of silver nanoparticle using Aloe barbadensis

    Energy Technology Data Exchange (ETDEWEB)

    Thappily, Praveen, E-mail: pravvmon@gmail.com, E-mail: shiiuvenus@gmail.com; Shiju, K., E-mail: pravvmon@gmail.com, E-mail: shiiuvenus@gmail.com [Laboratory for Molecular Photonics and Electronics (LAMP), Department of Physics, National Institute of Technology, Calicut, Kerala 673601 (India)

    2014-10-15

    Green synthesis of silver nanoparticles was achieved by simple visible light irradiation using aloe barbadensis leaf extract as reducing agent. UV-Vis spectroscopic analysis was used for confirmation of the successful formation of nanoparticles. Investigated the effect of light irradiation time on the light absorption of the nanoparticles. It is observed that upto 25 minutes of light irradiation, the absorption is linearly increasing with time and after that it becomes saturated. Finally, theoretically fitted the time-absorption graph and modeled a relation between them with the help of simulation software.

  5. Green synthesis and characterization of silver nanoparticle using Aloe barbadensis

    International Nuclear Information System (INIS)

    Thappily, Praveen; Shiju, K.

    2014-01-01

    Green synthesis of silver nanoparticles was achieved by simple visible light irradiation using aloe barbadensis leaf extract as reducing agent. UV-Vis spectroscopic analysis was used for confirmation of the successful formation of nanoparticles. Investigated the effect of light irradiation time on the light absorption of the nanoparticles. It is observed that upto 25 minutes of light irradiation, the absorption is linearly increasing with time and after that it becomes saturated. Finally, theoretically fitted the time-absorption graph and modeled a relation between them with the help of simulation software

  6. Evaluation of Aloe vera (Aloe barbadensis Miller Antioxidant Activity and Some of the Morphological Characteristics in Different Vermicompost Field

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    Z. Yavari

    2014-02-01

    Full Text Available Normal 0 false false false EN-US X-NONE FA Construction and function of effective substances of medicinal plants are influenced by environmental factors such as deficiency or increased of nutrients in the soil and substrates. Therefore, a greenhouse experiment was performed in completely randomized design with four treatments and three replications. The effects of vermicompost were examined on the morphological and phytochemical features in aloe vera. Treatments consisted of four vermicompost percentages (0%, 15%, 30% and 45% in humus soil. The considered factors were leaf weight, gel fresh weight, gel dry weight, the antioxidant capacity of the gel, glucomannan of gel, flavonoids and phenols of gel, and anthocyanins of cortex. data analysis showed that the maximum of leaf weight, gel weight, dry weight of gel and gel glucomannan was obtained in 45% of vermicompost. The maximum of gel phenol, antioxidant activity of gel and anthocyanins of cortex belonged to 30% of vermicompost and gel flavonoid in 15% of vermicompost. To achieve maximum antioxidant capacity and optimum amount of active substances, more studies and application of different field of vermicompost are required in order to increase the value of medicinal properties. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri","sans-serif";}

  7. Evaluation of Aloe vera (Aloe barbadensis Miller Antioxidant Activity and Some of the Morphological Characteristics in Different Vermicompost Field

    Directory of Open Access Journals (Sweden)

    Z.Yavari

    2013-04-01

    Full Text Available Construction and function of effective substances of medicinal plants are influenced by environmental factors such as deficiency or increased of nutrients in the soil and substrates. Therefore, a greenhouse experiment was performed in completely randomized design with four treatments and three replications. The effects of vermicompost were examined on the morphological and phytochemical features in aloe vera. Treatments consisted of four vermicompost percentages (0%, 15%, 30% and 45% in humus soil. The considered factors were leaf weight, gel fresh weight, gel dry weight, the antioxidant capacity of the gel, glucomannan of gel, flavonoids and phenols of gel, and anthocyanins of cortex. data analysis showed that the maximum of leaf weight, gel weight, dry weight of gel and gel glucomannan was obtained in 45% of vermicompost. The maximum of gel phenol, antioxidant activity of gel and anthocyanins of cortex belonged to 30% of vermicompost and gel flavonoid in 15% of vermicompost. To achieve maximum antioxidant capacity and optimum amount of active substances, more studies and application of different field of vermicompost are required in order to increase the value of medicinal properties.

  8. Measurement of the transmittance of edible films of aloe vera (barbadensis miller) and cassava starch using optical fibers trifurcated

    Science.gov (United States)

    Díaz, L.; Reales, J.; Torres, C.

    2017-01-01

    In Colombia, especially in the Atlantic Coast it is produced and marketed the costeño cheese, an indigenous product of the gastronomy of this region, but the prolonged exposure of this product to the environment leads to microbial contamination and non-enzymatic rancidity. For this reason the transmittance of an edible coating based in aloe vera gel and cassava starch to preserve costeño cheese was evaluated using trifurcated optical fibers. The results become a tool for the selection of treatments in making edible films and their subsequent use in coatings for various types of food products.

  9. Measurement of the transmittance of edible films of aloe vera (barbadensis miller) and cassava starch using optical fibers trifurcated

    International Nuclear Information System (INIS)

    Díaz, L; Torres, C; Reales, J

    2017-01-01

    In Colombia, especially in the Atlantic Coast it is produced and marketed the costeño cheese, an indigenous product of the gastronomy of this region, but the prolonged exposure of this product to the environment leads to microbial contamination and non-enzymatic rancidity. For this reason the transmittance of an edible coating based in aloe vera gel and cassava starch to preserve costeño cheese was evaluated using trifurcated optical fibers. The results become a tool for the selection of treatments in making edible films and their subsequent use in coatings for various types of food products. (paper)

  10. Effect of high hydrostatic pressure on functional properties and quality characteristics of Aloe vera gel (Aloe barbadensis Miller).

    Science.gov (United States)

    Vega-Gálvez, Antonio; Miranda, Margarita; Aranda, Mario; Henriquez, Karem; Vergara, Judith; Tabilo-Munizaga, Gipsy; Pérez-Won, Mario

    2011-12-01

    The aim of this study was to evaluate the effects of high hydrostatic pressure treatment at three pressure levels (300, 400 and 500Mpa) on the functional and quality characteristics of Aloe vera gel including vitamin C and E, aloin, minerals, phenolic content and antioxidant activity. The results show that HHP exerted a clear influence on minerals content, vitamin C and E content, antioxidant activity, total phenolic and aloin content. After 35days of storage all treated samples presented a decrease in mineral content, except for phosphorus. Total phenolic content and vitamin C and E content decreased at high pressures (500MPa), while all pressurised samples showed a higher antioxidant activity and aloin content than untreated sample after 35days of storage. The maximum values of antioxidant activity and aloin were 6.55±1.26μg/ml at 300MPa and 24.23±2.27mg/100g d.m. at 400MPa. Copyright © 2011 Elsevier Ltd. All rights reserved.

  11. Final report on the safety assessment of AloeAndongensis Extract, Aloe Andongensis Leaf Juice,aloe Arborescens Leaf Extract, Aloe Arborescens Leaf Juice, Aloe Arborescens Leaf Protoplasts, Aloe Barbadensis Flower Extract, Aloe Barbadensis Leaf, Aloe Barbadensis Leaf Extract, Aloe Barbadensis Leaf Juice,aloe Barbadensis Leaf Polysaccharides, Aloe Barbadensis Leaf Water, Aloe Ferox Leaf Extract, Aloe Ferox Leaf Juice, and Aloe Ferox Leaf Juice Extract.

    Science.gov (United States)

    2007-01-01

    Plant materials derived from the Aloe plant are used as cosmetic ingredients, including Aloe Andongensis Extract, Aloe Andongensis Leaf Juice, Aloe Arborescens Leaf Extract, Aloe Arborescens Leaf Juice, Aloe Arborescens Leaf Protoplasts, Aloe Barbadensis Flower Extract, Aloe Barbadensis Leaf, Aloe Barbadensis Leaf Extract, Aloe Barbadensis Leaf Juice, Aloe Barbadensis Leaf Polysaccharides, Aloe Barbadensis Leaf Water, Aloe Ferox Leaf Extract, Aloe Ferox Leaf Juice, and Aloe Ferox Leaf Juice Extract. These ingredients function primarily as skin-conditioning agents and are included in cosmetics only at low concentrations. The Aloe leaf consists of the pericyclic cells, found just below the plant's skin, and the inner central area of the leaf, i.e., the gel, which is used for cosmetic products. The pericyclic cells produce a bitter, yellow latex containing a number of anthraquinones, phototoxic compounds that are also gastrointestinal irritants responsible for cathartic effects. The gel contains polysaccharides, which can be acetylated, partially acetylated, or not acetylated. An industry established limit for anthraquinones in aloe-derived material for nonmedicinal use is 50 ppm or lower. Aloe-derived ingredients are used in a wide variety of cosmetic product types at concentrations of raw material that are 0.1% or less, although can be as high as 20%. The concentration of Aloe in the raw material also may vary from 100% to a low of 0.0005%. Oral administration of various anthraquinone components results in a rise in their blood concentrations, wide systemic distribution, accumulation in the liver and kidneys, and excretion in urine and feces; polysaccharide components are distributed systemically and metabolized into smaller molecules. aloe-derived material has fungicidal, antimicrobial, and antiviral activities, and has been effective in wound healing and infection treatment in animals. Aloe barbadensis (also known as Aloe vera)-derived ingredients were not toxic

  12. Lavandula angustifolia Miller: English lavender.

    Science.gov (United States)

    Denner, Sallie Stoltz

    2009-01-01

    Folk and traditional therapeutic use of the essential oil of English lavender for pain, infection, relaxation, and sedation dates back centuries. Current research focusing on the inherent synergism of Lavandula angustifolia Miller demonstrates great potential for future applications. Today's investigations may provide the key to eradicating degenerative inflammatory disease, infectious disease, and carcinogenesis.

  13. Aislamiento, identificación y evaluación de hongos entomopatógenos como posibles agentes de control de trips (Thysanoptera: Thripidae) asociados a cultivos de aguacate (Persea americana Miller)

    OpenAIRE

    Restrepo Quiróz, Tatiana Inés

    2014-01-01

    Resumen: Los problemas fitosanitarios del sistema productivo del aguacate, como el ataque de insectos plaga, particularmente los trips, afectan la competitividad de este cultivo considerado como una de las apuestas exportadoras del país. Esto hace indispensable la búsqueda de soluciones que respondan al reto de la competitividad y exigencias del mercado. Los trips son insectos difíciles de controlar debido su carácter polífago, su alta tasa reproductiva y hábito críptico. La principal medida ...

  14. George A. Miller (1920–2012)

    OpenAIRE

    Pinker, Steven

    2013-01-01

    Presents an obituary for George A. Miller (1920—2012). Miller ranks among the most important psychologists of the 20th century. In addition to writing one of the best known papers in the history of psychology (“The Magical Number Seven, Plus or Minus Two: Some Limits on Our Capacity for Processing Information,” published in Psychological Review in 1956), Miller also fomented the cognitive revolution, invented psycholinguistics and cognitive psychology, imported powerful ideas from the theorie...

  15. J. Hillis Miller's Virtual Reality of Reading

    Science.gov (United States)

    Fosso, Kurt; Harp, Jerry

    2012-01-01

    We set out to investigate Miller's curious assertion--curious for a deconstructionist committed to a critique of the old metaphysics of presence--that literary works preexist their being written down. We find a basis for this sense of the preexistence of the literary work in Miller's insights about the performative dynamics of reading and writing.…

  16. David Miller on Immigration Policy and Nationality

    DEFF Research Database (Denmark)

    Lægaard, Sune

    2007-01-01

    David Miller's recent statement of the case for restrictive immigration policies can plausibly be construed as an application of a ‘liberal nationalist' position. The paper first addresses Miller's critique of distributive justice arguments for open borders, which relies on nationality as determi......David Miller's recent statement of the case for restrictive immigration policies can plausibly be construed as an application of a ‘liberal nationalist' position. The paper first addresses Miller's critique of distributive justice arguments for open borders, which relies on nationality...... as determinative of the scope of distributive justice and as giving rise to national collective responsibility. Three interpretations of his main positive reason for restricting immigration, which concerns the importance of a shared public culture, are then discussed: culture as having valuable social functions...... in relation to immigration policy....

  17. Influence of drinking water containing Aloe vera (Aloe barbadensis Miller) gel on growth performance, intestinal microflora, and humoral immune responses of broilers.

    Science.gov (United States)

    Shokraneh, Meisam; Ghalamkari, Gholamreza; Toghyani, Majid; Landy, Nasir

    2016-11-01

    The risk of bacteria resistance to specific antibiotics possibly by continuous subtherapeutical administration of antibiotic growth promoters (AGPs) in poultry feed led to a ban on the use of AGP in poultry production. As a result of this ban, alternative substances for poultry growth promotion and disease prevention are being investigated, among which phytogenic and herbal products have received increased attention as natural additives because they have been accepted by consumers as natural additives. The effect of water supplementation of Aloe vera (AV) as an AGP substitute on performance, intestinal microflora, and immune responses of broilers. The five experimental treatments were allocated to four replicates. The following treatments were applied (1) a basal broiler diet (C) and normal drinking water, (2) 0.5% AV gel in drinking water, (3) 0.75% AV gel in drinking water, (4) 1% AV gel in drinking water, and (5) diet C supplemented with flavophospholipol at 4.5 mg/kg and drinking normal water. Vaccines against influenza disease and sheep red blood cell (SRBC) were administrated to immunological stimuli. The populations of Lactobacilli spp. and coliforms were enumerated in ileum. Body weight of broilers supplemented with different levels of AV increased compared with control group (pantibiotic had the best feed-to-gain ratio (F:G) in different periods. Supplementation of 0.5% and 0.75% AV improved F: G entire experimental period compared with control group (pantibiotic (pantibiotic significantly was higher than other groups (pwater with 1% AV gel as an alternative for AGP substitution.

  18. Influence of drinking water containing Aloe vera (Aloe barbadensis Miller gel on growth performance, intestinal microflora, and humoral immune responses of broilers

    Directory of Open Access Journals (Sweden)

    Meisam Shokraneh

    2016-11-01

    Full Text Available Aim: The risk of bacteria resistance to specific antibiotics possibly by continuous subtherapeutical administration of antibiotic growth promoters (AGPs in poultry feed led to a ban on the use of AGP in poultry production. As a result of this ban, alternative substances for poultry growth promotion and disease prevention are being investigated, among which phytogenic and herbal products have received increased attention as natural additives because they have been accepted by consumers as natural additives. The effect of water supplementation of Aloe vera (AV as an AGP substitute on performance, intestinal microflora, and immune responses of broilers. Materials and Methods: The five experimental treatments were allocated to four replicates. The following treatments were applied (1 a basal broiler diet (C and normal drinking water, (2 0.5% AV gel in drinking water, (3 0.75% AV gel in drinking water, (4 1% AV gel in drinking water, and (5 diet C supplemented with flavophospholipol at 4.5 mg/kg and drinking normal water. Vaccines against influenza disease and sheep red blood cell (SRBC were administrated to immunological stimuli. The populations of Lactobacilli spp. and coliforms were enumerated in ileum. Results: Body weight of broilers supplemented with different levels of AV increased compared with control group (p<0.05. Birds supplemented with antibiotic had the best feed-to-gain ratio (F:G in different periods. Supplementation of 0.5% and 0.75% AV improved F:G entire experimental period compared with control group (p<0.05. Coliform bacteria were reduced in broilers supplemented with different levels of AV or antibiotic (p<0.05. The Lactobacilli spp. population in birds supplemented with 0.75%, 1% AV or antibiotic significantly was higher than other groups (p<0.05. Supplementation with 1% AV led to greater antibody titers against SRBC compared with other groups (p<0.05. Conclusion: These findings demonstrated a possibility of supplementing broiler drinking water with 1% AV gel as an alternative for AGP substitution.

  19. Effect of Aloe vera (Aloe barbadensis Miller) on survivability, extent of proteolysis and ACE inhibition of potential probiotic cultures in fermented milk.

    Science.gov (United States)

    Basannavar, Santosh; Pothuraju, Ramesh; Sharma, Raj Kumar

    2014-10-01

    In the present investigation, the effect of Aloe vera gel powder on angiotensin-converting enzyme (ACE) inhibitory activity, extent of proteolysis during fermentation and survival of Lactobacillus casei NCDC19 during storage of fermented milk was studied. Among the different cultures screened for ACE inhibitory activity, Lactobacillus casei NCDC 19 exhibited the highest ACE inhibition (approx. 40%) as well as extent of proteolysis (0.37, Abs₃₄₀). In the presence of Aloe vera (0.5% and 1% w/v) an increase in extent of proteolysis (0.460 ± 0.047 and 0.480 ± 0.027) and percent ACE inhibitory activity (44.32 ± 2.83 and 47.52 ± 1.83) was observed in comparison to control. Aloe vera powder addition also led to an increase in viable counts (>11 log cfu mL⁻¹) of L. casei NCDC 19 in fermented milk during storage for 7 days and the counts were maintained in sufficiently higher numbers. The study suggests Aloe vera to be a good functional ingredient which can be further explored for different health attributes. © 2014 Society of Chemical Industry.

  20. Optimality in Microwave-Assisted Drying of Aloe Vera ( Aloe barbadensis Miller) Gel using Response Surface Methodology and Artificial Neural Network Modeling

    Science.gov (United States)

    Das, Chandan; Das, Arijit; Kumar Golder, Animes

    2016-10-01

    The present work illustrates the Microwave-Assisted Drying (MWAD) characteristic of aloe vera gel combined with process optimization and artificial neural network modeling. The influence of microwave power (160-480 W), gel quantity (4-8 g) and drying time (1-9 min) on the moisture ratio was investigated. The drying of aloe gel exhibited typical diffusion-controlled characteristics with a predominant interaction between input power and drying time. Falling rate period was observed for the entire MWAD of aloe gel. Face-centered Central Composite Design (FCCD) developed a regression model to evaluate their effects on moisture ratio. The optimal MWAD conditions were established as microwave power of 227.9 W, sample amount of 4.47 g and 5.78 min drying time corresponding to the moisture ratio of 0.15. A computer-stimulated Artificial Neural Network (ANN) model was generated for mapping between process variables and the desired response. `Levenberg-Marquardt Back Propagation' algorithm with 3-5-1 architect gave the best prediction, and it showed a clear superiority over FCCD.

  1. Aloe vera (Aloe barbadensis Miller) supplemented probiotic lassi prevents Shigella infiltration from epithelial barrier into systemic blood flow in mice model.

    Science.gov (United States)

    Hussain, Shaik Abdul; Patil, Girdhari Ramdas; Reddi, Srinu; Yadav, Vidhu; Pothuraju, Ramesh; Singh, Ram Ran Bijoy; Kapila, Suman

    2017-01-01

    The aim of present work was to investigate preventive role of orally administered Aloe vera supplemented probiotic lassi (APL) on Shigella dysenteriae infection in mice. At the end of experimental period (2, 5 and 7 days of challenging), different organs such as spleen, liver, small intestine, large intestine, and peritoneal fluid were collected and assessed for Shigella colonization. Secretary IgA was estimated in intestinal fluid. Blood was collected in heparinized tubes for various haematological studies. Oral administration of APL showed a significant (p Shigella counts (log cfu/mL) in all organs as compared to other treatment groups at different intervals after post feeding. Similarly, secretary IgA antibody levels (μg/mL) in intestinal fluid were significantly (p Shigella dysenteriae induced infection in mice. Copyright © 2016 Elsevier Ltd. All rights reserved.

  2. Prebiotic Soup-Revisiting the Miller Experiment

    Science.gov (United States)

    Bada, Jeffrey L.; Lazcano, Antonio

    2003-01-01

    'Isn't life wonderful?' sang Alma Cogan and Les Howard in their almost forgotten 1953 hit. That same year, Stanley L. Miller raised the hopes of understanding the origin of life when on 15 May, Science published his paper on the synthesis of amino acids under conditions that simulated primitive Earth's atmosphere. Miller had applied an electric discharge to a mixture of CH4, NH3, H2O, and H2 - believed at the time to be the atmospheric composition of early Earth. Surprisingly, the products were not a random mixture of organic molecules, but rather a relatively small number of biochemically significant compounds such as amino acids, hydroxy acids, and urea. With the publication of these dramatic results, the modem era in the study of the origin of life began.

  3. Prebiotic Soup: Revisiting the Miller Experiment

    Science.gov (United States)

    Bada, Jeffrey L.; Lazcano, Antonio

    2003-01-01

    Isn't life wonderful? sang Alma Cogan and Les Howard in their almost forgotten 1953 hit. That same year, Stanley L. Miller raised the hopes of understanding the origin of life when on 15 May, Science published his paper on the synthesis of amino acids under conditions that simulated primitive Earth's atmosphere. Miller had applied an electric discharge to a mixture of CH4, NH3, H2O, and H2 - believed at the time to be the atmospheric composition of early Earth. Surprisingly, the products were not a random mixture of organic molecules. but rather a relatively small number of biochemically significant compounds such as amino acids, hydroxy acids, and urea. With the publication of these dramatic results, the modern era in the study of the origin of life began.

  4. In vivo tracing of organophosphorus pesticides in cabbage (Brassica parachinensis) and aloe (Barbadensis)

    Energy Technology Data Exchange (ETDEWEB)

    Qiu, Junlang; Chen, Guosheng; Zhou, Hong; Xu, Jianqiao; Wang, Fuxin; Zhu, Fang, E-mail: ceszf@mail.sysu.edu.cn; Ouyang, Gangfeng, E-mail: cesoygf@mail.sysu.edu.cn

    2016-04-15

    In vivo solid-phase microextraction (SPME) sampling method coupled with gas chromatography–mass spectrometry (GC–MS) analysis was employed to trace the uptake and elimination of organophosphorus pesticides (OPPs) in two kinds of edible plants, cabbage (Brassica parachinensis) and aloe (Barbadensis). The metabolism of fenthion in aloe was also investigated by the liquid chromatography tandem mass spectrometry analysis (LC–MS/MS) to understand the fate of OPPs in living plants better. Transpiration stream concentration factor (TSCF) and depuration rate constants of the OPPs in living plants were obtained therein. The health risk of the OPPs treated aloe was estimated by the maximum residue limit (MRL) approach, and it revealed that the OPPs were rather safe for their fast degradable property. However, peak concentration of fenthion-sulfoxide was found to exceed the MRL and was higher than that of the parent fenthion, which indicated the potential risk of pesticide metabolites. This study highlighted the application of in vivo SPME for contaminant tracing in different living edible plants. The in vivo tracing method is very convenient and can provide more data to evaluate the risk of different pesticides, which are very important for the safety of agriculture production. - Highlights: • In vivo SPME was employed to sample organophosphorus pesticides in vegetables. • Uptake and elimination of OPPs were traced in cabbage and aloe. • In vivo tracing of fenthion demonstrated its metabolites could be rather dangerous. • The risks of OPPs were assessed based on the in vivo tracing data.

  5. In vivo tracing of organophosphorus pesticides in cabbage (Brassica parachinensis) and aloe (Barbadensis)

    International Nuclear Information System (INIS)

    Qiu, Junlang; Chen, Guosheng; Zhou, Hong; Xu, Jianqiao; Wang, Fuxin; Zhu, Fang; Ouyang, Gangfeng

    2016-01-01

    In vivo solid-phase microextraction (SPME) sampling method coupled with gas chromatography–mass spectrometry (GC–MS) analysis was employed to trace the uptake and elimination of organophosphorus pesticides (OPPs) in two kinds of edible plants, cabbage (Brassica parachinensis) and aloe (Barbadensis). The metabolism of fenthion in aloe was also investigated by the liquid chromatography tandem mass spectrometry analysis (LC–MS/MS) to understand the fate of OPPs in living plants better. Transpiration stream concentration factor (TSCF) and depuration rate constants of the OPPs in living plants were obtained therein. The health risk of the OPPs treated aloe was estimated by the maximum residue limit (MRL) approach, and it revealed that the OPPs were rather safe for their fast degradable property. However, peak concentration of fenthion-sulfoxide was found to exceed the MRL and was higher than that of the parent fenthion, which indicated the potential risk of pesticide metabolites. This study highlighted the application of in vivo SPME for contaminant tracing in different living edible plants. The in vivo tracing method is very convenient and can provide more data to evaluate the risk of different pesticides, which are very important for the safety of agriculture production. - Highlights: • In vivo SPME was employed to sample organophosphorus pesticides in vegetables. • Uptake and elimination of OPPs were traced in cabbage and aloe. • In vivo tracing of fenthion demonstrated its metabolites could be rather dangerous. • The risks of OPPs were assessed based on the in vivo tracing data.

  6. Comparison of sample preparation methods for the determination of essential and toxic elements in important indigenous medicinal plant Aloe barbadensis

    International Nuclear Information System (INIS)

    Sahito, S.R.; Kazi, T.G.; Kazi, G.H.; Jakhrani, M.A.; Wattoo, M.H.S.

    2002-01-01

    The role of elements particularly traces elements in health and disease is now well established. In this paper we investigate the presence of various elements in very important herb Aloe barbadensis, it is commonly used in different ailments especially of elementary tract. We used four extraction methods for the determination of total elements in Aloe barbadensis. The procedure, which is found to be more efficient and decompose the biological material, is nitric acid and 30% hydrogen peroxide as compared to other method. The sample of plants was collected from surrounding of Hyderabad; Sindh University and vouches specimens were prepared following the standard herbarium techniques. Fifteen essential, trace and toxic elements such as Zn, Cr, K, Mg, Ca, Na, Fe, Pb, Al, Ba, Mn, Co, Ni and Cd were determined in plant and in its decoction. Using Flame Atomic Absorption Spectrophotometer Hitachi Model 180-50. It is noted that, level of essential elements was found high as compare to the level of toxic elements. (author)

  7. EFEKTIFITAS DAYA HAMBAT BAKTERI Streptomyces sp TERHADAP Erwinia sp PENYEBAB PENYAKIT BUSUK REBAH PADA TANAMAN LIDAH BUAYA (Aloe barbadensis Mill

    Directory of Open Access Journals (Sweden)

    SARMILA TASNIM

    2013-05-01

    Full Text Available Streptomyces sp was conducted from December 2010 - June 2011 at the Laboratoryof Microbiology, Biology Department, Math and Science Faculty, UdayanaUniversity Bukit Jimbaran-Bali. Implementation stages of the research consisted ofisolation and testing of the antibiotic activity Streptomyces sp to inhibit growthbacterial pathogens Erwinia sp as a cause of disease in plants fallen foul (Soft rot ofAloe barbadensis Mill.The results of this study have eight isolates of Streptomyces spwith macroscopic and microscopic characters are varied. Furthermore, all isolateswere obtained and then tested against antibiotic activity to inhibit growth the bacteriaErwinia sp. Test results obtained by Streptomyces sp that has the most effective ininhibiting the ability of the bacteria Erwinia sp isolates are Streptomyces sp2for (45%.

  8. NOAA Ship Miller Freeman Underway Meteorological Data, Quality Controlled

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NOAA Ship Miller Freeman Underway Meteorological Data (delayed ~10 days for quality control) are from the Shipboard Automated Meteorological and Oceanographic System...

  9. The effect of quince leaf ( Cydonia oblonga miller) decoction on ...

    African Journals Online (AJOL)

    ... miller) decoction on testes in hypercholesterolemic rabbits: A pilot study. ... Eleven mature New Zealand white male rabbits were randomly divided into three ... for light microscopic study with particular attention to the maturity of germ cells in ...

  10. Phylogeny of Amazona barbadensis and the Yellow-headed Amazon complex (Aves: Psittacidae): a new look at South American parrot evolution.

    Science.gov (United States)

    Urantówka, Adam Dawid; Mackiewicz, Paweł; Strzała, Tomasz

    2014-01-01

    The Yellow-shouldered Amazon (Amazona barbadensis) is the sole parrot of the genus Amazona that inhabits only dry forests. Its population has been dropping; therefore it has been the topic of many studies and conservation efforts. However, the phylogenetic relationship of this species to potential relatives classified within the Yellow-Headed Amazon (YHA) complex are still not clear. Therefore, we used more extensive data sets, including the newly sequenced mitochondrial genome of A. barbadensis, to conduct phylogenetic analyses. Various combinations of genes and many phylogenetic approaches showed that A. barbadensis clustered significantly with A. ochrocephala ochrocephala from Colombia and Venezuela, which created the Northern South American (NSA) lineage, clearly separated from two other lineages within the YHA complex, the Central (CA) and South American (SA). Tree topology tests and exclusion of rapidly evolving sites provided support for a NSA+SA grouping. We propose an evolutionary scenario for the YHA complex and its colonization of the American mainland. The NSA lineage likely represents the most ancestral lineage, which derived from Lesser Antillean Amazons and colonized the northern coast of Venezuela about a million years ago. Then, Central America was colonized through the Isthmus of Panama, which led to the emergence of the CA lineage. The southward expansion to South America and the origin of the SA lineage happened almost simultaneously. However, more intensive or prolonged gene flow or migrations have led to much weaker geographic differentiation of genetic markers in the SA than in the CA lineage.

  11. Pairing Relationships Among Feldspathic Lunar Meteorites from Miller Range, Antarctica

    Science.gov (United States)

    Zeigler, Ryan A.; Korotev, R. L.; Jolliff, B. L.

    2012-01-01

    The Miller Range ice fields have been amongst the most prolific for lunar meteorites that ANSMET has searched [1-3]. Six different stones have been recovered during the 2005, 2007, and 2009 field seasons: MIL 05035 (142 g), MIL 07006 (1.4 g), MIL 090034 (196 g), MIL 090036 (245 g), MIL 090070 (137 g), and MIL 090075 (144 g). Of these, the five stones collected during the 2007 and 2009 seasons are feldspathic breccias. Previous work on the Miller Range feldspathic lunar meteorites (FLMs) has suggested that they are not all paired with each other [4-5]. Here we examine the pairing relationships among the Miller Range FLMs using petrography in concert with traceand major-element compositions.

  12. Hepatoprotective Activity of Herbal Composition SAL, a Standardize Blend Comprised of Schisandra chinensis, Artemisia capillaris, and Aloe barbadensis

    Directory of Open Access Journals (Sweden)

    Mesfin Yimam

    2016-01-01

    Full Text Available Some botanicals have been reported to possess antioxidative activities acting as scavengers of free radicals rendering their usage in herbal medicine. Here we describe the potential use of “SAL,” a standardized blend comprised of three extracts from Schisandra chinensis, Artemisia capillaris, and Aloe barbadensis, in mitigating chemically induced acute liver toxicities. Acetaminophen and carbon tetrachloride induced acute liver toxicity models in mice were utilized. Hepatic functional tests from serum collected at T24 and hepatic glutathione and superoxide dismutases from liver homogenates were evaluated. Histopathology analysis and merit of blending 3 standardized extracts were also confirmed. Statistically significant and dose-correlated inhibitions in serum ALT ranging from 52.5% (p=0.004 to 34.6% (p=0.05 in the APAP and 46.3% (p<0.001 to 29.9% (p=0.02 in the CCl4 models were observed for SAL administered at doses of 400–250 mg/kg. Moreover, SAL resulted in up to 60.6% and 80.2% reductions in serums AST and bile acid, respectively. The composition replenished depleted hepatic glutathione in association with an increase of hepatic superoxide dismutase. Unexpected synergistic protection from liver damage was also observed. Therefore, the composition SAL could be potentially utilized as an effective hepatic-detoxification agent for the protection from liver damage.

  13. Effect of dietary supplementation with propolis and Aloe barbadensis extracts on hematological parameters and parasitism in Nile tilapia

    Directory of Open Access Journals (Sweden)

    Geovana Dotta

    Full Text Available This study evaluated the influence of diet supplementation with propolis and Aloe barbadensis on hematological parameters and parasitism in tilapia. One hundred and eighty fish were distributed among 12 water tanks forming four treatments: fish supplemented with a 1:1 mixture of 0%, 0.5%, 1% and 2% propolis and aloe extracts. After the fish had been fed on the experimental diets for 15 and 21 days, blood samples were taken and parasites collected. The monogeneans Cichlidogyrus sclerosus, C. halli, C. thurstonae and Scutogyrus longicornis were identified in the gills. Between the sampling times, there were increases in the numbers of erythrocytes, leukocytes, thrombocytes and lymphocytes, as observed after 21 days, possibly due to the stress level over the course of the assay and/or accumulation of substances in the organism. Supplementation with the mixture of propolis and aloe for 15 days showed the highest efficacy against the parasites. This was possibly due to the association between the two compounds. The results demonstrated that supplementation with mixtures of extracts did not produce hematological alterations and also favored a significant reduction in the number of gill parasites. The best results were achieved after 15 days of feeding with a diet with 0.5% and 1% supplementation with the extract mixture, which increased efficiency by 83 and 85% respectively

  14. The Miller Motivation Scale: A New Counselling and Research Tool.

    Science.gov (United States)

    Miller, Harold J.

    The Miller Motivation Scale is a 160-item computer scored scale. It was developed to measure quickly and easily and display the motivational profile of the client. It has eight subscales. Five subscales measure encouragement, self-fulfillment and social interest. They are called Creative, Innovative, Productive, Cooperative, and Power. Three…

  15. Successful di cult airway intubation using the Miller laryngoscope ...

    African Journals Online (AJOL)

    with the use of a Miller laryngoscope blade (straight blade) and paraglossal technique, achieving Cormack and Lehane views superior to those seen using Macintosh blades.7 As early as 1997,. Henderson8 questioned the role of curved blades for di cult airway intubation and proposed that paraglossal straight blade.

  16. The effect of quince leaf ( Cydonia oblonga miller) decoction on ...

    African Journals Online (AJOL)

    Current medical literature lacks any evidence of the protective effects of quince leaf on testes. Therefore, the aim of the present study was to assess the effect of quince (Cydonia oblonga Miller) leaf decoction on testicular injury and impaired spermatogenesis induced by hypercholesterolemia in rabbits. Eleven mature New ...

  17. U-bearing particles in miners' and millers' lungs

    International Nuclear Information System (INIS)

    Paschoa, A.S.; Wrenn, M.E.; Singh, N.P.; Miller, S.C.; Jones, K.W.; Cholewa, M.; Hanson, A.L.; Saccomanno, G.

    1984-01-01

    The size distribution of uranium-bearing particles in air particulates in occupational areas of active uranium mines and mills is largely uninvestigated. Investigation of the size of residual uranium-bearing particles in uranium miners' and millers' lungs is warranted because significant inhalation of uranium can occur in certain occupational areas. Average uranium concentrations of about 0.3 ppM U in uranium miners' and millers' lungs have been reported. Local uranium concentrations in uranium-bearing particles inhaled and regionally deposited in the lungs of uranium miners and millers are orders of magnitude larger than the average uranium concentrations reported. The feasibility of using microPIXE (particle induced x-ray emission) techniques to search for such uranium-bearing particles embedded in lung tissues has been demonstrated. Proton microbeams 20 μm in diameter, scanning in 5 μm steps, were used to irradiate sections of lung tissues 10 to 40 μm thick. The paper will briefly describe the method, and present and discuss the results obtained in an extensive search for uranium-bearing particles embedded in lung tissues, collected at autopsy, of former uranium miners and millers. 13 references, 1 table

  18. Modigliani-Miller, Basel 3 and CRD 4

    DEFF Research Database (Denmark)

    Balling, Morten

    2015-01-01

    Since 2007, bank capital regulation has been strengthened in Europe and globally. Bank organizations have expressed serious concerns about the impact of higher capital requirements on bank funding costs adn on the lending capacity of banks. The message of a 1958-Article by Modigliani and Miller...

  19. Wentworth Miller : "Minu edu saladus? Kunstniku hing ja bürokraadi pulss" / Wentworth Miller ; koost. Triin Tael

    Index Scriptorium Estoniae

    Miller, Wentworth

    2006-01-01

    Cannes'is hotellis Carlton toimunud pressikonverentsist, kus ajakirjanike küsimustele vastasid põnevusseriaali "Põgenemine" peaosatäitjad Wentworth Miller ja Dominic Purcell. Lisaks "Wentworth SL Õhtulehele : "Minu südame võitmiseks tuleb oodata" ja tutvustus "Wentworthi läbimurdefilm täna õhtul ETVs"

  20. 28 CFR 79.52 - Criteria for eligibility for claims by uranium millers.

    Science.gov (United States)

    2010-07-01

    ... uranium millers. 79.52 Section 79.52 Judicial Administration DEPARTMENT OF JUSTICE (CONTINUED) CLAIMS UNDER THE RADIATION EXPOSURE COMPENSATION ACT Eligibility Criteria for Claims by Uranium Millers § 79.52 Criteria for eligibility for claims by uranium millers. To establish eligibility for compensation under...

  1. [Charles Miller Fisher: the grandmaster of neurological observation].

    Science.gov (United States)

    Fukutake, Toshio

    2014-11-01

    Charles Miller Fisher is widely regarded as the father of modern stroke neurology. He discovered almost all pathomechanisms of cerebral infarction, including embolism from atrial fibrillation, carotid artery disease, and lacunar infarcts and their syndromes, by the most meticulous clinico-pathological observations. Moreover, his work provided the basis for treatments such as anticoagulation, antiplatelet therapy, and carotid endarterectomy. He also contributed greatly to several topics of General Neurology; for example, migraine, normal pressure hydrocephalus, and Miller Fisher syndrome. In his late years, he tried to expand the neurological field to the more complex disorders of human behavior, including hysteria, dementia, and ill-defined pain syndromes. He thus became known as the grandmaster of refined neurological observation. His lifelong detailed studies were crucially important in helping neurologists all over the world recognize disorders and syndromes that had not previously been understood.

  2. Takotsubo cardiomyopathy associated with Miller-Fisher syndrome.

    Science.gov (United States)

    Gill, Dalvir; Liu, Kan

    2017-07-01

    51-year-old female who presented with progressive paresthesia, numbness of the lower extremities, double vision, and trouble walking. Physical exam was remarkable for areflexia, and ptosis. Her initial EKG showed nonspecific ST segment changes and her Troponin T was elevated to 0.41ng/mL which peaked at 0.66ng/mL. Echocardiogram showed a depressed left ventricular ejection fraction to 35% with severely hypokinetic anterior wall and left ventricular apex was severely hypokinetic. EMG nerve conduction study showed severely decreased conduction velocity and prolonged distal latency in all nerves consistent with demyelinating disease. She was treated with 5days of intravenous immunoglobulin therapy to which she showed significant improvement in strength in her lower extremities. Echocardiogram repeated 4days later showing an improved left ventricular ejection fraction of 55% and no left ventricular wall motion abnormalities. Takotsubo cardiomyopathy is a rare complication of Miller-Fisher syndrome and literature review did not reveal any cases. Miller-Fisher syndrome is an autoimmune process that affects the peripheral nervous system causing autonomic dysfunction which may involve the heart. Due to significant autonomic dysfunction in Miller-Fisher syndrome, it could lead to arrhythmias, blood pressure changes, acute coronary syndrome and myocarditis, Takotsubo cardiomyopathy can be difficult to distinguish. The treatment of Takotsubo cardiomyopathy is supportive with beta-blockers and angiotensin-converting enzyme inhibitors are recommended until left ventricle ejection fraction improvement. Takotsubo cardiomyopathy is a rare complication during the acute phase of Miller-Fisher syndrome and must be distinguished from autonomic dysfunction as both diagnoses have different approaches to treatment. Published by Elsevier Inc.

  3. In Vitro Antioxidant Effects of Aloe barbadensis Miller Extracts and the Potential Role of These Extracts as Antidiabetic and Antilipidemic Agents on Streptozotocin-Induced Type 2 Diabetic Model Rats

    Directory of Open Access Journals (Sweden)

    Md. Ibrahim Khalil

    2012-11-01

    Full Text Available In this study, the total phenolic and flavonoid contents, the 2,2-diphenyl-1-picryl hydrazyl (DPPH radical scavenging ability and the ferric reducing power (FRAP of Aloe vera were measured to determine the antioxidant activity of this species. The in vivo antidiabetic effects of the plant were also investigated using streptozotocin-induced type 2 diabetic model rats that were divided into five groups based on the treatment received: (1 water (WC; (2 glibenclamide; (3 concentrated gel extract (Gel-C; (4 ethanol (80% gel extract (Gel-Et; and (5 ethanol (80% skin extract of Aloe vera (Skin-Et. Skin-Et, which contained the highest level of total phenolics (62.37 ± 1.34 mggallic acid/kg and flavonoids (20.83 ± 0.77 mg/kg, exhibited the highest scavenging activity (85.01 ± 0.52% and the greatest reducing power (185.98 ± 0.41 µM, indicating that the skin contained the highest level of antioxidants. The oral consumption of Gel-Et for 4 weeks a caused significant reduction in the fasting serum glucose levels of the rats. The rats in the Gel-C-, Gel-Et- and Skin-Et-treated groups experienced a reduction in their total cholesterol levels by 11%, 17% and 25%, respectively and a reduction in their LDL cholesterol levels by 45%, 3% and 69%, respectively. The in vivo experimental antioxidant parameter MDA is strongly correlated with the in vitro antioxidant parameters of flavonoids and polyphenols, namely the DPPH and FRAP values (r = 0.94, 0.92, 0.93, 0.90, thus confirming the antioxidant potential of the Aloe vera extracts.

  4. Hybrid Automotive Engine Using Ethanol-Burning Miller Cycle

    Science.gov (United States)

    Weinstein, Leonard

    2004-01-01

    A proposed hybrid (internal-combustion/ electric) automotive engine system would include as its internal-combustion subsystem, a modified Miller-cycle engine with regenerative air preheating and with autoignition like that of a Diesel engine. The fuel would be ethanol and would be burned lean to ensure complete combustion. Although the proposed engine would have a relatively low power-to-weight ratio compared to most present engines, this would not be the problem encountered if this engine were used in a non-hybrid system since hybrid systems require significantly lower power and thus smaller engines than purely internal-combustion-engine-driven vehicles. The disadvantage would be offset by the advantages of high fuel efficiency, low emission of nitrogen oxides and particulate pollutants, and the fact that ethanol is a renewable fuel. The original Miller-cycle engine, named after its inventor, was patented in the 1940s and is the basis of engines used in some modern automobiles, but is not widely known. In somewhat oversimplified terms, the main difference between a Miller-cycle engine and a common (Otto-cycle) automobile engine is that the Miller-cycle engine has a longer expansion stroke while retaining the shorter compression stroke. This is accomplished by leaving the intake valve open for part of the compression stroke, whereas in the Otto cycle engine, the intake valve is kept closed during the entire compression stroke. This greater expansion ratio makes it possible to extract more energy from the combustion process without expending more energy for compression. The net result is greater efficiency. In the proposed engine, the regenerative preheating would be effected by running the intake air through a heat exchanger connected to the engine block. The regenerative preheating would offer two advantages: It would ensure reliable autoignition during operation at low ambient temperature and would help to cool the engine, thereby reducing the remainder of the

  5. A Case of Neuromyelitis Optica Masquerading as Miller Fisher Syndrome

    Directory of Open Access Journals (Sweden)

    Yuka Furutani

    2014-10-01

    Full Text Available A 22-year-old woman presented with double vision that she had experienced since an infection 2 weeks previously. A neurological examination showed limited bilateral eye abduction, mimicking Miller Fisher syndrome. However, T2-weighted magnetic resonance imaging of her brain revealed hyperintense areas in the tegmentum of the pons, including the abducens nucleus, and her serum anti-aquaporin-4 antibody test was positive. She was finally diagnosed with neuromyelitis optica. Intravenous high-dose steroid therapy immediately improved the patient's abduction palsy, but bilateral optic neuritis manifested during the treatment. Subsequent treatment with plasma exchange improved her optic neuritis symptoms.

  6. Complete mitochondrial genome of endangered Yellow-shouldered Amazon (Amazona barbadensis): two control region copies in parrot species of the Amazona genus.

    Science.gov (United States)

    Urantowka, Adam Dawid; Hajduk, Kacper; Kosowska, Barbara

    2013-08-01

    Amazona barbadensis is an endangered species of parrot living in northern coastal Venezuela and in several Caribbean islands. In this study, we sequenced full mitochondrial genome of the considered species. The total length of the mitogenome was 18,983 bp and contained 13 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes, duplicated control region, and degenerate copies of ND6 and tRNA (Glu) genes. High degree of identity between two copies of control region suggests their coincident evolution and functionality. Comparative analysis of both the control region sequences from four Amazona species revealed their 89.1% identity over a region of 1300 bp and indicates the presence of distinctive parts of two control region copies.

  7. A Case of Miller Fisher Syndrome, Thromboembolic Disease, and Angioedema: Association or Coincidence?

    OpenAIRE

    Salehi, Nooshin; Choi, Eric D.; Garrison, Roger C.

    2017-01-01

    Patient: Male, 32 Final Diagnosis: Miller Fisher syndrome Symptoms: Ataxia ? headache ? ophthalmoplegia Medication: ? Clinical Procedure: Plasmapheresis Specialty: Neurology Objective: Rare co-existance of disease or pathology Background: Miller Fisher Syndrome is characterized by the clinical triad of ophthalmoplegia, ataxia, and areflexia, and is considered to be a variant of Guillain-Barre Syndrome. Miller Fisher Syndrome is observed in approximately 1?5% of all Guillain-Barre cases in Wes...

  8. 'The Right Time and the Right Place': An Interview with Jacques Miller.

    Science.gov (United States)

    Anderson, Warwick

    2016-01-01

    Professor Jacques F.P. Miller spoke about his career in immunology with Warwick Anderson on 3 February 2014. Born in Nice, France, Miller attended high school and medical school in Sydney, Australia. As a Ph.D. student and postgraduate researcher in London, Miller discovered the immunological function of the thymus gland. Spending the rest of his career at the Walter and Eliza Hall Institute for Medical Research in Melbourne, Miller conducted pioneering research in lymphocyte population dynamics and the mechanisms of the human immune response. With Graham Mitchell, he demonstrated that mammalian lymphocytes can be divided into what became known as T cells and B cells, which interact to produce antibodies.

  9. Legitimizing Technical Communication in English Departments: Carolyn Miller's "Humanistic Rationale for Technical Writing"

    Science.gov (United States)

    Moore, Patrick

    2006-01-01

    Carolyn Miller's oft-cited "Humanistic Rationale for Technical Writing," published in 1979, tries to give technical communication faculty more cultural capital in English departments controlled by literature professors. Miller replaces a positivistic emphasis in technical communication pedagogy with rhetoric. She shows how technical knowledge is…

  10. Maslow and Miller: An Exploration of Gender and Affiliation in the Journey to Competence

    Science.gov (United States)

    Coy, Doris Rhea; Kovacs-Long, Judith

    2005-01-01

    This article shows that although neither Abraham Maslow nor Jean Baker Miller reference each other in their writings, they are following different paths to the same conclusion: competence proceeds from connection. Miller and Maslow both describe a developmental model that applies equally to women and men. The conclusion of the authors of this…

  11. Hamilton's Marbles or Jevon's Beans: A Demonstration of Miller's Magical Number Seven.

    Science.gov (United States)

    Shaffer, Leigh S.

    1982-01-01

    Describes a demonstration for college-level cognitive psychology classes of Miller's "Magical Number Seven" concept of the limitation of sensory capacity for processing information. Students report on the number of pennies they observed in a box after viewing the coins for two seconds. Demonstration results consistently support Miller's…

  12. Effect of the Miller cycle on the performance of turbocharged hydrogen internal combustion engines

    International Nuclear Information System (INIS)

    Luo, Qing-he; Sun, Bai-gang

    2016-01-01

    Highlights: • The Miller cycle can increase power density for turbocharged hydrogen engines. • The boundaries is limited by the turbocharged system and valve lift. • Broke power and BSFC of using Miller cycle is the best in three technical methods. - Abstract: Hydrogen is a promising energy carrier, and the port fuel injection (PFI) is a fuel-flexible, durable, and relatively cheap method of energy conversion. However, the contradiction of increasing the power density and controlling NOx emissions limits the wide application of PFI hydrogen internal combustion engines. To address this issue, two typical thermodynamic cycles—the Miller and Otto cycles—are studied based on the calculation model proposed in this study. The thermodynamic cycle analyses of the two cycles are compared and results show that the thermal efficiency of the Miller cycle (η_M_i_l_l_e_r) is higher than η_O_t_t_o, when the multiplied result of the inlet pressure and Miller cycle coefficient (δ_Mγ_M) is larger than that of the Otto cycle (i.e., the value of the inlet pressure ratio multiplied by the Miller cycle coefficient is larger than the value of the inlet pressure ratio of the Otto cycle). The results also show that the intake valve closure (IVC) of the Miller cycle is limited by the inlet pressure and valve lift. The two factors show the boundaries of the Miller cycle in increasing the power density of the turbocharged PFI hydrogen engine. The ways of lean burn + Otto cycle (LO), stoichiometric equivalence ratio burn + EGR + Otto cycle (SEO) and Miller cycle in turbocharged hydrogen engine are compared, the results show that the Miller cycle has the highest power density and the lowest BSFC among the three methods at an engine speed of 2800 rpm and NOx emissions below 100 ppm. The brake power of the Miller cycle increases by 37.7% higher than that of the LO and 26.3% higher than that of SEO, when γ_M is 0.7. The BSFC of the Miller cycle decreases by 16% lower than that of

  13. The cosmopolitan strikes back: a critical discussion of Miller on nationality and global equality

    Directory of Open Access Journals (Sweden)

    Nils Holtug

    2011-09-01

    Full Text Available According to David Miller, we have stronger obligations towards our co-nationals than we have towards non-nationals. While a principle of equality governs our obligations of justice within the nation-state, our obligations towards non-nationals are governed by a weaker principle of sufficiency. In this paper, I critically assess Miller's objection to a traditional argument for global egalitarianism, according to which nationalist and other deviations from equality rely on factors that are arbitrary from a moral point of view. Then I critically discuss Miller's claim that there is no culturally neutral currency with respect to which we may reasonably claim that people should be equally well off on a global scale. Furthermore, I critically discuss Miller's claim that cosmopolitanism undermines national responsibility. And finally, I turn to Miller's own sufficientarian account of global justice and argue that it exhibits too little concern for the plight of the globally worse off.

  14. A Case of Miller Fisher Syndrome, Thromboembolic Disease, and Angioedema: Association or Coincidence?

    Science.gov (United States)

    Salehi, Nooshin; Choi, Eric D; Garrison, Roger C

    2017-01-16

    BACKGROUND Miller Fisher Syndrome is characterized by the clinical triad of ophthalmoplegia, ataxia, and areflexia, and is considered to be a variant of Guillain-Barre Syndrome. Miller Fisher Syndrome is observed in approximately 1-5% of all Guillain-Barre cases in Western countries. Patients with Miller Fisher Syndrome usually have good recovery without residual deficits. Venous thromboembolism is a common complication of Guillain-Barre Syndrome and has also been reported in Miller Fisher Syndrome, but it has generally been reported in the presence of at least one prothrombotic risk factor such as immobility. A direct correlation between venous thromboembolism and Miller Fisher Syndrome or Guillain-Barre Syndrome has not been previously described. CASE REPORT We report the case of a 32-year-old Hispanic male who presented with acute, severe thromboembolic disease and concurrently demonstrated characteristic clinical features of Miller Fisher Syndrome including ophthalmoplegia, ataxia, and areflexia. Past medical and family history were negative for thromboembolic disease, and subsequent hypercoagulability workup was unremarkable. During the course of hospitalization, the patient also developed angioedema. CONCLUSIONS We describe a possible association between Miller Fisher Syndrome, thromboembolic disease, and angioedema.

  15. Review of the genus Fontidessus Miller & Spangler, 2008 (Coleoptera, Dytiscidae, Hydroporinae, Bidessini with description of four new species

    Directory of Open Access Journals (Sweden)

    Kelly Miller

    2014-07-01

    Full Text Available The genus Fontidessus Miller & Spangler, 2008 (Coleoptera: Dytiscidae: Hydroporinae: Bidessini is reviewed. The genus now includes seven species with three previously described, and four new species described here: F. microphthalmus Miller & Montano, sp. n.; F. bettae Miller & Montano, sp. n.; F. christineae Miller & Montano, sp. n., and F. aquarupe Miller & Montano, sp. n. Each species is diagnosed and described, including the previously known species, based on new specimens and new information. Habitus, male genitalia and other diagnostic features are illustrated for each species. A key to the seven species is provided. Fontidessus species are unique to hygropetric habitats in the Guiana Shield craton of northern South American.

  16. Adaptation: a contemporary view, revisiting Crichton-Miller's 1925 paper.

    Science.gov (United States)

    Music, Graham

    2016-03-01

    In this paper I discuss a contemporary 'take' on the concept of adaptation in light of Crichton-Miller's original 1926 paper. I look briefly at some of the ways that contemporary thinking is both similar to and different from ideas of 90 years ago. In particular I think about how recent neurobiological findings, epigenetic research and attachment theory have cast new light on our understanding of the ways humans adapt to social and emotional environments. It looks at how psychiatric presentations which are seen as maladaptive might well have an adaptive origin in early life. In this account I emphasise how a more modern version of evolutionary theory can be developed, particularly one influenced by life history theory, and suggest that such ideas have powerful explanatory power as well as being based solidly in good research. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

  17. Larson-Miller Constant of Heat-Resistant Steel

    Science.gov (United States)

    Tamura, Manabu; Abe, Fujio; Shiba, Kiyoyuki; Sakasegawa, Hideo; Tanigawa, Hiroyasu

    2013-06-01

    Long-term rupture data for 79 types of heat-resistant steels including carbon steel, low-alloy steel, high-alloy steel, austenitic stainless steel, and superalloy were analyzed, and a constant for the Larson-Miller (LM) parameter was obtained in the current study for each material. The calculated LM constant, C, is approximately 20 for heat-resistant steels and alloys except for high-alloy martensitic steels with high creep resistance, for which C ≈ 30 . The apparent activation energy was also calculated, and the LM constant was found to be proportional to the apparent activation energy with a high correlation coefficient, which suggests that the LM constant is a material constant possessing intrinsic physical meaning. The contribution of the entropy change to the LM constant is not small, especially for several martensitic steels with large values of C. Deformation of such martensitic steels should accompany a large entropy change of 10 times the gas constant at least, besides the entropy change due to self-diffusion.

  18. Myxomycetes on carnaubeira (Copernicia prunifera (Miller H. E. Moore, Arecaceae Myxomycetes em carnaubeira (Copernicia prunifera (Miller H. E. Moore, Arecaceae

    Directory of Open Access Journals (Sweden)

    Mitra Mobin

    2000-04-01

    Full Text Available Entre dezembro/1994 e setembro/1995 foram realizadas sete excursões (2 a 4 dias cada ao Parque Nacional de Sete Cidades (4º5'-4º15'S, 41º30'-41º40'W, 450m alt., em Piripiri, Piauí, visando coletar frutificações de Myxomycetes em indivíduos de Coperniciaprunifera (Miller H. E. Moore, estabelecidos em área de cerrado, na localidade Lagoa Seca. As amostras foram herborizadas e incorporadas ao herbário UFP (Universidade Federal de Pernambuco, Recife, PE, com duplicatas no herbário TEPB (Universidade Federal do Piauí, Teresina, PI. Registrou-se apreciável incidência (70% de Myxomycetes na carnaubeira, em estipe vivo e folhas mortas. Dezesseis espécies, pertencentes às Ceratiomyxaceae (Ceratiomyxa lsp., Didymiaceae (Diachea lsp., Didymium 2spp., Physaraceae (Craterium 1sp., Physarum 4spp., Trichiaceae (Arcyria 2spp. e Stemonitaceae (Comatricha 3spp., Macbrideola lsp., Stemonitis lsp. foram registradas. Ceratiomyxaceae, representada por Ceratiomyxafruticulosa (Mull. Macbr., constitui primeira referência para o Estado do Piauí.From December, 1994 to September, 1995, seven collecting trips (2-4 days each were carried out in the "Parque Nacional de Sete Cidades" (4º5'-4º15'S, 41º30"-41º40'W, 450m alt., Piripiri, Piauí State, Brazil, in order to collect Myxomycetes fruiting bodies on carnauba palm trees (Coperniciaprunifera (Miller H. E. Moore, established in a place called "Lagoa Seca" (savanna-like stunted vegetation. The samples were herborized and included in the UFP Herbarium (Universidade Federal de Pernambuco, Recife, PE and the TEPB Herbarium (Universidade Federal do Piauí, Teresina, PI. In relation to the substrate, the "carnaubeira" showed a high incidence of Myxomycetes (70% on living stipitis and dead leaves. Sixteen species belonging to Ceratiomyxaceae (Ceratiomyxa lsp., Didymiaceae (Diachea lsp., Didymium 2spp., Physaraceae (Craterium lsp., Physarum 4spp., Trichiaceae (Arcyria 2spp. and Stemonitaceae (Comatricha 3spp

  19. Efficiency of Opuntia ficus in the phytoremediation of a soil contaminated with used motor oil and lead, compared to that of Lolium perenne and Aloe barbadensis.

    Science.gov (United States)

    Escobar-Alvarado, Luisa F; Vaca-Mier, Mabel; López-Callejas, Raymundo; Rojas-Valencia, Ma Neftalí

    2018-01-28

    Industrial pollutants such as heavy metals and hydrocarbons in soils represent a serious concern due to their persistence and negative effects on the environment, affecting cellular processes in living organisms and even causing mutations and cancer. The main objectives of this work were to evaluate the efficiency of Opuntia ficus in the phytoremediation of a soil polluted with used motor oil. Two other species, one with different and one with similar characteristics, relatively, were used for comparison purposes: Lolium perenne and Aloe barbadensis. The effect of the plants on lead solubility and bioaccumulation, the biomass production of each specie and the microbial counts and bacterial identification for each experiment was studied. Total petroleum hydrocarbons (TPH) were measured every 5 weeks throughout the 20-week phytoremediation experiment. At the end of the experiment soluble Pb, Pb extracted by the plant species, microbiological counts, total biomass and bacterial species in soil were analyzed. Even though Lolium perenne showed the highest TPH removal (47%), Opuntia ficus produced the highest biomass and similar removal (46%). Since Opuntia ficus requires low amounts of water and grows fast, it would be a suitable option in the remediation of soils polluted with hydrocarbons and/or heavy metals.

  20. Pediatric Miller Fisher Syndrome Complicating an Epstein-Barr Virus Infection.

    Science.gov (United States)

    Communal, Céline; Filleron, Anne; Baron-Joly, Sandrine; Salet, Randa; Tran, Tu-Anh

    2016-10-01

    Miller Fisher syndrome, a variant of Guillain-Barré syndrome, is an acute inflammatory demyelinating polyradiculoneuropathy that may occur weeks after a bacterial or viral infection. Campylobacter jejuni and Haemophilus influenzae are frequently reported etiological agents. We describe a boy with Miller Fisher syndrome following Epstein-002DBarr virus primary infectious mononucleosis. He presented with bilateral dysfunction of several cranial nerves and hyporeflexia of the limbs but without ataxia. Miller Fisher syndrome was confirmed by the presence of anti-GQ1b antibodies in a blood sample. Epstein-Barr virus was identified by polymerase chain reaction and serology. Epstein-Barr virus should be considered as a Miller Fisher syndrome's causative agent. The physiopathology of this condition may involve cross-reactive T-cells against Epstein-Barr virus antigens and gangliosides. Copyright © 2016 Elsevier Inc. All rights reserved.

  1. Syndrome de Miller Fisher avec anticorps anti GQ1b négatif au ...

    African Journals Online (AJOL)

    Le Syndrome de Miller Fisher est caractérisé par l'association d'une ophtalmoplégie, d'une ataxie et d'une aréflexie ostéo-tendineuse. Une infection virale est le plus souvent retrouvée dans les jours ou semaines qui précèdent la symptomatologie. Nous rapportons un cas de syndrome de Miller Fisher survenu chez une ...

  2. An analytic study of applying Miller cycle to reduce NOx emission from petrol engine

    International Nuclear Information System (INIS)

    Wang Yaodong; Lin Lin; Roskilly, Anthony P.; Zeng Shengchuo; Huang, Jincheng; He Yunxin; Huang Xiaodong; Huang Huilan; Wei Haiyan; Li Shangping; Yang Jing

    2007-01-01

    An analytic investigation of applying Miller cycle to reduce nitrogen oxides (NO x ) emissions from a petrol engine is carried out. The Miller cycle used in the investigation is a late intake valve closing version. A detailed thermodynamic analysis of the cycle is presented. A comparison of the characters of Miller cycle with Otto cycle is presented. From the results of thermodynamic analyses, it can be seen that the application of Miller cycle is able to reduce the compression pressure and temperature in the cylinder at the end of compression stroke. Therefore, it lowers down the combustion temperature and NO x formation in engine cylinder. These results in a lower exhaust temperature and less NO x emissions compared with that of Otto cycle. The analytic results also show that Miller cycle ratio is a main factor to influence the combustion temperature, and then the NO x emissions and the exhaust temperature. The results from the analytic study are used to analyse and to compare with the previous experimental results. An empirical formula from the previous experimental results that showed the relation of NO x emissions with the exhaust temperature at different engine speed is presented. The results from the study showed that the application of Miller cycle may reduce NO x emissions from petrol engine

  3. Cerebellar and pontine tegmental hypermetabolism in miller-fisher syndrome

    International Nuclear Information System (INIS)

    Kim, Yu Kyrong; Kim, Ji Soo; Lee, Won Woo; Kim, Sang Eun

    2007-01-01

    Miller Fisher syndrome (MFS) has been considered as a variant of Guillain-Barre syndrome (GBS), a type of acute immune neuropathies involving peripheral nerve system. Unlike GBS, presence of cerebellar type ataxia and supranuclear ophthalmioplesia in MFS suggests additional involvement of the central nervous system. To determine involvement of the central nervous system in MFS, we investigated the cerebral metabolic abnormalities in patients with MFS using FDG PET. Nine patients who were diagnosed as MFS based on acute ophthalmoplegia, ataxia, and areflexia without other identifiable causes participated in this study. In six patients, serum antibodies possibly related with symptom of MFS (anti- GQ1b or anti-GM1) were detected at the time of the study. With the interval of 25 26 days (range: 3-83 days) from the symptom on set, brain FDG PET were underwent in patients and compared with those from healthy controls. In group analysis comparing with healthy controls, FDG PET of patients revealed increased metabolism in the bilateral cerebellar hemispheres and vermis, and the thalamus. In contrast, the occipital cortex showed decreased metabolism. Individual analyses disclosed hypermetabolism in the cerebellar vermis or hemispheres in 5, and in the pontine tegmentum in 2 of the 9 patients. We also found that the cerebellar vermian hypermetabolism was inversely correlated with the interval between from the symptom on set to PET study. Moreover, follow-up PET of a patient demonstrated that cerebellar hypermetabolism decreased markedly with an improvement of the ophthalmoplegia and ataxia. These findings indicate an involvement of the central nervous system in MFS and suggest an antibody-associated acute inflammatory process as a mechanism of this disorder

  4. Cerebellar and pontine tegmental hypermetabolism in miller-fisher syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Yu Kyrong; Kim, Ji Soo; Lee, Won Woo; Kim, Sang Eun [Seoul National Univ. College of Medicine, Seoul (Korea, Republic of)

    2007-07-01

    Miller Fisher syndrome (MFS) has been considered as a variant of Guillain-Barre syndrome (GBS), a type of acute immune neuropathies involving peripheral nerve system. Unlike GBS, presence of cerebellar type ataxia and supranuclear ophthalmioplesia in MFS suggests additional involvement of the central nervous system. To determine involvement of the central nervous system in MFS, we investigated the cerebral metabolic abnormalities in patients with MFS using FDG PET. Nine patients who were diagnosed as MFS based on acute ophthalmoplegia, ataxia, and areflexia without other identifiable causes participated in this study. In six patients, serum antibodies possibly related with symptom of MFS (anti- GQ1b or anti-GM1) were detected at the time of the study. With the interval of 25 26 days (range: 3-83 days) from the symptom on set, brain FDG PET were underwent in patients and compared with those from healthy controls. In group analysis comparing with healthy controls, FDG PET of patients revealed increased metabolism in the bilateral cerebellar hemispheres and vermis, and the thalamus. In contrast, the occipital cortex showed decreased metabolism. Individual analyses disclosed hypermetabolism in the cerebellar vermis or hemispheres in 5, and in the pontine tegmentum in 2 of the 9 patients. We also found that the cerebellar vermian hypermetabolism was inversely correlated with the interval between from the symptom on set to PET study. Moreover, follow-up PET of a patient demonstrated that cerebellar hypermetabolism decreased markedly with an improvement of the ophthalmoplegia and ataxia. These findings indicate an involvement of the central nervous system in MFS and suggest an antibody-associated acute inflammatory process as a mechanism of this disorder.

  5. Human radiation studies: Remembering the early years. Oral history of radiologist Earl R. Miller, M.D., August 9 and 17, 1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-06-01

    Dr. Earl R. Miller was interviewed by representatives of US DOE Office of Human Radiation Research (OHRE). The interview covers Dr. Miller`s involvement with the Manhattan Engineer District, with total body irradiation, and heavy-ion therapy. Dr. Miller`s remembrances include wartime work on radiation exposure, Joe Hamilton, Neutron Therapy research, means of obtaining isotopes, consent forms, infinite laminograms, invention of a baby holder to alleviate exposure of radiological technicians in diagnostic procedures involving infants, and several personages.

  6. Miller's Pyramid and Core Competency Assessment: A Study in Relationship Construct Validity.

    Science.gov (United States)

    Williams, Betsy White; Byrne, Phil D; Welindt, Dillon; Williams, Michael V

    2016-01-01

    Continuous professional development relies on the link between performance and an educational process aimed at improving knowledge and skill. One of the most broadly used frameworks for assessing skills is Miller's Pyramid. This Pyramid has a series of levels of achievement beginning with knowledge (at the base) and ending with routine application in the clinical setting. The purpose of this study was to determine the degree of convergence of two measurement methods, one based on Miller's framework, the second using the Accreditation Council for Graduate Medical Education/American Board of Medical Specialties (ACGME/ABMS) Core Competency framework. The data were gathered from the faculty of a large, Midwestern regional health care provider and hospital system. Data from 264 respondents were studied. The 360° data were from raters of physicians holding supervisory roles in the organization. The scale items were taken from an instrument that has been validated for both structure and known group prediction. The Miller scale was purposely built for this application. The questions were designed to describe each level of the model. The Miller scale was reduced to a single dimension. This result was then regressed on the items from the 360° item ratings. Results of a multivariate analysis of variance isolated a significant relationship between the Miller's Pyramid score and the competency items (P core competencies. Equally important is the finding that while they are related they are not identical. These findings have implications for continuous professional development programing design.

  7. Primordial soup was edible: abiotically produced Miller-Urey mixture supports bacterial growth.

    Science.gov (United States)

    Xie, Xueshu; Backman, Daniel; Lebedev, Albert T; Artaev, Viatcheslav B; Jiang, Liying; Ilag, Leopold L; Zubarev, Roman A

    2015-09-28

    Sixty years after the seminal Miller-Urey experiment that abiotically produced a mixture of racemized amino acids, we provide a definite proof that this primordial soup, when properly cooked, was edible for primitive organisms. Direct admixture of even small amounts of Miller-Urey mixture strongly inhibits E. coli bacteria growth due to the toxicity of abundant components, such as cyanides. However, these toxic compounds are both volatile and extremely reactive, while bacteria are highly capable of adaptation. Consequently, after bacterial adaptation to a mixture of the two most abundant abiotic amino acids, glycine and racemized alanine, dried and reconstituted MU soup was found to support bacterial growth and even accelerate it compared to a simple mixture of the two amino acids. Therefore, primordial Miller-Urey soup was perfectly suitable as a growth media for early life forms.

  8. Cash Management Policies By Evolutionary Models: A Comparison Using The MILLER-ORR Model

    Directory of Open Access Journals (Sweden)

    Marcelo Botelho da Costa Moraes

    2013-10-01

    Full Text Available This work aims to apply genetic algorithms (GA and particle swarm optimization (PSO to managing cash balance, comparing performance results between computational models and the Miller-Orr model. Thus, the paper proposes the application of computational evolutionary models to minimize the total cost of cash balance maintenance, obtaining the parameters for a cash management policy, using assumptions presented in the literature, considering the cost of maintenance and opportunity for cost of cash. For such, we developed computational experiments from cash flows simulated to implement the algorithms. For a control purpose, an algorithm has been developed that uses the Miller-Orr model defining the lower bound parameter, which is not obtained by the original model. The results indicate that evolutionary algorithms present better results than the Miller-Orr model, with prevalence for PSO algorithm in results.

  9. Comment on "The third Zemach moment of the proton", by Cloet and Miller

    CERN Document Server

    De Rújula, A

    2010-01-01

    Cloet and Miller, in arXiv:1008.4345, state that "existing data rule out a value of the third Zemach moment large enough to explain the current puzzle with the proton charge radius determined from the Lamb shift in muonic Hydrogen. This is in contrast with the recent claim of De R\\'ujula [arXiv:1008.3861]". To be more precise: it is not. It is, however, contrary to what they claim that I claim. Cloet and Miller have simply misinterpreted my claims.

  10. Migration and New Media: Transnational Families and Polymedia by Mirca Madianou and Daniel Miller (Routledge, 2012

    Directory of Open Access Journals (Sweden)

    Erwin Gaspar A. Alampay

    2012-06-01

    Full Text Available In 2007, Daniel Miller presented his paper on “What is a Mobile PhoneRelationship” in the “1st Living the Information Society Conference” held inManila. In his presentation, he mentioned the work he was just embarking onwith Mirca Madianou on long-distance relationships of separated families andthe ability of different media to sustain those relationships over time (Miller,2009. He was then building on the extensive work that Parrenas (2001, 2005a,2005b had done on Filipino transnational families, and in particular, on motheringfrom a distance

  11. The 1953 Stanley L. Miller Experiment: Fifty Years of Prebiotic Organic Chemistry

    Science.gov (United States)

    Lazcano, Antonio; Bada, Jeffrey L.

    2003-01-01

    The field of prebiotic chemistry effectively began with a publication in Science 50 years ago by Stanley L. Miller on the spark discharge synthesis of amino acids and other compounds using a mixture of reduced gases that were thought to represent the components of the atmosphere on the primitive Earth. On the anniversary of this landmark publication, we provide here an accounting of the events leading to the publication of the paper. We also discuss the historical aspects that lead up to the landmark Miller experiment.

  12. Incidence and Predictors of Hand–Arm Musculoskeletal Complaints among Vibration-exposed African Cassava and Corn Millers

    Directory of Open Access Journals (Sweden)

    Lukuke Hendrick Mbutshu

    2014-09-01

    Conclusion: This study revealed a relatively high incidence of musculoskeletal complaints among African cassava and corn millers. The use of anti-vibration protective equipment and the regulation of this hazardous occupation may reduce the burden of musculoskeletal disorders in millers.

  13. Will Higher Education Pass "A Test of Leadership"? An Interview with Spellings Commission Chairman Charles Miller

    Science.gov (United States)

    Callan, Pat

    2007-01-01

    Charles Miller, former chairman of the University of Texas System's Board of Regents, chaired the recent Commission on the Future of Higher Education created by Secretary of Education Margaret Spellings. Here he is interviewed regarding the panel's widely discussed report, "A Test of Leadership," by Pat Callan, president of the National…

  14. 75 FR 81331 - Surety Companies Acceptable on Federal Bonds: Termination-Penn Millers Insurance Company

    Science.gov (United States)

    2010-12-27

    ... should be accepted from this company, and bonds that are continuous in nature should not be renewed. The... DEPARTMENT OF THE TREASURY Fiscal Service Surety Companies Acceptable on Federal Bonds: Termination--Penn Millers Insurance Company AGENCY: Financial Management Service, Fiscal Service, Department...

  15. Search for Self in Arthur Miller's The Death of a Salesman | Maleki ...

    African Journals Online (AJOL)

    The quest for self is expressed through a nostalgic yearning for the past, which has been lost due to various reasons. The process of search for self is spread over two generations, which enhances the effectiveness of Miller in depicting the struggle between the self of an individual and the public self the individual is ...

  16. A Tribute to Professor Rene H. Miller - A Pioneer in Aeromechanics and Rotary Wing Flight Transportation

    Science.gov (United States)

    Friedmann, Peretz P.; Johnson, Wayne; Scully, Michael P.

    2011-01-01

    Rene H. Miller (May 19, 1916 January 28, 2003), Emeritus H. N. Slater Professor of Flight Transportation, was one of the most influential pioneers in rotary wing aeromechanics as well as a visionary whose dream was the development of a tilt-rotor based short haul air transportation system. This paper pays a long overdue tribute to his memory and to his extraordinary contributions.

  17. Síndrome de Miller Fisher e neurite óptica: relato de caso

    Directory of Open Access Journals (Sweden)

    CARVALHO ALZIRA A. SIQUEIRA

    2000-01-01

    Full Text Available Descreve-se um caso de síndrome de Miller Fisher associada a neuropatia óptica desmielinizante bilateral, confirmada pelo exame de potencial evocado visual, sugerindo possível comprometimento do sistema nervoso central nessa síndrome.

  18. Giving Psychology Away: How George Miller's Vision Is Being Realised by Psychological Literacy

    Science.gov (United States)

    Banyard, Philip; Hulme, Julie A.

    2015-01-01

    In George Miller's famous address to the American Psychological Association in 1969 he explored the aims and future direction of psychology. Psychology could develop as a professional elite that develops specialised knowledge that experts can hold on to or it could aim to "give psychology away" and to allow the general public access to…

  19. Molecular characterization of Campylobacter jejuni from patients with Guillain-Barré and Miller Fisher syndromes

    NARCIS (Netherlands)

    H.P. Endtz (Hubert); F.G. Rodgers; W.M. Johnson; A.F. van Belkum (Alex); J.A. Wagenaar (Jaap); H.A. Verbrugh (Henri); B.C. Jacobs (Bart); C.W. Ang (Wim); N.P.W.C.J. van den Braak (Nicole); B. Duim; A. Rigter; L.J. Price; D.L. Woodward

    2000-01-01

    textabstractCampylobacter jejuni has been identified as the predominant cause of antecedent infection in Guillain-Barre syndrome (GBS) and Miller Fisher syndrome (MFS). The risk of developing GBS or MFS may be higher after infection with specific C. jejuni types. To

  20. Getting Back to the Main Point: A Reply to Miller et al.

    Science.gov (United States)

    Harrison, Allyson G.; Holmes, Alana; Silvestri, Robert; Armstrong, Irene T.

    2015-01-01

    Miller et al. have challenged the findings of our two previous studies, based largely on the assumption that our findings are biased due to the clinical sample used. However, they fail to address the primary tenet of our studies, namely, that clinicians will obtain different scores on the Wechsler Adult Intelligence Scale-IV (WAIS-IV) depending on…

  1. Pharmacy profile. New ASCP president Robert J. Miller: entrepreneur who puts the patient first.

    Science.gov (United States)

    Meade, Vicki

    2005-10-01

    Bob Miller, known for his enthusiasm and desire to nurture others' growth, brings to his term as 2005-2006 ASCP president the leadership skills and business acumen he developed over two decades as a long-term care pharmacy owner.

  2. J-GLOBAL MeSH Dictionary: Miller Fisher症候群 [MeCab user dictionary for science technology term[Archive

    Lifescience Database Archive (English)

    Full Text Available MeCab user dictionary for science technology term Miller Fisher症候群 名詞 一般 * * * * Miller Fish...er症候群 ... MeSH D019846 200906092174030462 C LS51 UNKNOWN_2 Miller Fisher 症候群

  3. Actividade antimicrobiana do óleo essencial do Foeniculum vulgare Miller Antimicrobial activity of Foeniculum vulgare Miller essential oil

    Directory of Open Access Journals (Sweden)

    M. T. Tinoco

    2007-01-01

    Full Text Available O Foeniculum vulgare Mill. subsp. vulgare é uma planta espontânea da região mediterrânea, pertencente à família Apiaceae. O seu óleo essencial, principalmente o dos frutos secos, é amplamente utilizado nas indústrias alimentar, farmacêutica, cosmética e perfumaria. Neste trabalho, pretendeu-se avaliar a actividade antimicrobiana do óleo essencial dos frutos verdes e das folhas da variedade de funcho doce colhido no Alentejo, na região de Évora, e relacionar essa actividade com a respectiva composição química. A extracção dos óleos essenciais foi efectuada por hidrodestilação e a sua análise foi feita por GC-FID e GC-MS. No óleo das folhas foram identificados como componentes maioritários os fenilpropanóides anetol, fenchona e estragol e o monoterpeno a-felandreno, enquanto que o óleo dos frutos apresentou como constituintes predominantes anetol e fenchona. A actividade antimicrobiana dos óleos foi avaliada face às estirpes Staphylococcus aureus, Escherichia coli, Saccharomyces spp., Fusarium oxysporum e Penicillium sp.. Os óleos essenciais apresentaram actividade antimicrobiana contra S. aureus, Saccharomyces spp. e Fusarium oxysporum.Foeniculum vulgare Mill. ssp. vulgare is a spontaneous plant of Mediterranean region that belongs to the Apiaceae family. Its essential oil is used as additives in food, pharmaceutical, cosmetic and perfume industries mainly that one obtained from dried seeds. The main goal of this work were to evaluate the antimicrobial activity of essential oils obtained from fresh leaves and unripe seeds of sweet fennel, collected in Évora-Alentejo, in face of their chemical composition. The extraction of the essentials oils was made by hydrodistillation. Chemical analyses were carried out by GC-FID and GCMS. Phenylpropanoides anethole, fenchone, estragole and the monoterpene aphellandrene were the most abundant compounds of leaves essential oil. Seeds essential oil showed as main components

  4. Development of miller cycle gas engine for cogeneration; Developpement d'un moteur a gaz a cycle de Miller destine a la cogeneration

    Energy Technology Data Exchange (ETDEWEB)

    Tsukida, N; Sakakura, A; Murata, Y; Okamoto, K [Tokyo Gas CO., LTD (Japan); Abe, T; Takemoto, T [YANMAR Diesel Engine CO., LTD (Japan)

    2000-07-01

    We have developed a 300 kW gas engine cogeneration system for practical use that uses natural gas. Using a gas engine operated under conditions with an excess air ratio {lambda} = 1 that is able to use a three way catalyst to purify the exhaust gases, we were able to achieve high efficiency through the application of the Miller Cycle, as well as a low NO{sub X} output. In terms of product specifications, we were able to achieve an electrical efficiency of 34.2% and a heat recovery efficiency of 49.3%, making an overall efficiency of 83.5% as a cogeneration system. (authors)

  5. Caracterización morfoanatómica comparativa entre Aloe vera (L.) Burm. F., Aloe arborescens Mill., Aloe saponaria Haw. y Aloe ciliaris Haw. (Aloeaceae)

    OpenAIRE

    Carpano, Stella Maris; Castro, María Teresa; Spegazzini, Etile Dolores

    2009-01-01

    Aloe vera (L.) Burm. F. (= Aloe barbadensis Miller) conhecida como "a planta da imortalidade" no antigo Egito é utilizada em fitoterapia como humectante, antibacteriana, antifúngica, antiviral e antioxidante. Com a finalidade de contribuir para identificação da droga vegetal, foram realizados estudos morfoanatômicos da folha. A utilização de plantas com características terapêuticas reconhecidas determina que, por analogia, popularmente sejam utilizadas com a mesma finalidade outras espécies d...

  6. Opuntia ficus-indica (L.) Miller as a source of bioactivity compounds for health and nutrition.

    Science.gov (United States)

    Aragona, M; Lauriano, E R; Pergolizzi, S; Faggio, C

    2017-08-14

    Plants with beneficial properties are known in traditional medicine. Nowadays, in spite of widespread availability of synthetic compounds, the search goes towards natural compounds to lower cost and few side effects. The increasing interest in preventive medicine encourages use of nutraceuticals, bioactive compounds of vegetable origin with important nutritional values. Among the medicinal plants, Opuntia ficus-indica (L.) Miller (Family Cactaceae, subfamily Opuntiodeae, Genus Opuntia, subgenus Platyopuntia, species Opuntia ficus-indica (L.) Miller) is widely known for its beneficial properties. The aim of the present review is to stress the major classes of Opuntia components and their medical interest through emphasis on some of their biological effects, particularly those having the most promising expected health benefits and therapeutic impacts on fish and mammals.

  7. Effect of Hydroalcoholic Extract of Cydonia oblonga Miller (Quince on Sexual Behaviour of Wistar Rats

    Directory of Open Access Journals (Sweden)

    Muhammad Aslam

    2014-01-01

    Full Text Available Cydonia oblonga Miller (quince is regarded as a potent libido invigorator in Tib-e-Nabvi and Unani System of Medicine. This study was carried out to evaluate the aphrodisiac activity of the hydroalcoholic extract of the fruits of Cydonia oblonga Miller (quince in Wistar rats. The extract was administered orally by gavage in the dose of 500 mg/kg and 800 mg/kg body weight per day as a single dose for 28 days. The observed parameters were mounting frequency, assessment of mating performance, and orientation activities towards females, towards the environment, and towards self. The results showed that after administration of the extract mounting frequency and the mating performance of the rats increased highly significantly P<0.01. The extract also influenced the behaviour of treated animals in comparison to nontreated rats in a remarkable manner, making them more attracted to females. These effects were observed in sexually active male Wistar rats.

  8. Mortality of Talc Miners and Millers From Val Chisone, Northern Italy: An Updated Cohort Study.

    Science.gov (United States)

    Pira, Enrico; Coggiola, Maurizio; Ciocan, Catalina; Romano, Canzio; La Vecchia, Carlo; Pelucchi, Claudio; Boffetta, Paolo

    2017-07-01

    The aim of this study was to update the analysis of mortality of a cohort of talc miners and millers in Northern Italy. We analyzed the mortality during 1946 to 2013 of 1722 male workers in an asbestos-free talc mine (1166 miners and 556 millers) employed during 1946 to 1995. The overall standardized mortality ratio (SMR) was 1.24 [95% confidence interval (95% CI) 1.17 to 1.32]; no deaths were observed from pleural cancer; mortality from lung cancer was not increased. Mortality from pneumoconiosis was increased (SMR 26.62; 95% CI 20.71 to 33.69), in particular among miners, and was associated with duration of employment and time since first employment. We confirmed the lack of association between exposure to asbestos-free talc, lung cancer, and mesothelioma. Increased mortality from pneumoconiosis among miners is attributable to past exposure to silica.

  9. Nitrogen isotope fractionations in the Fischer-Tropsch synthesis and in the Miller-Urey reaction

    International Nuclear Information System (INIS)

    Chun-Chan Kung; Hayatsu, R.; Studier, M.H.; Clayton, R.N.; Chicago Univ., IL; Chicago Univ., IL

    1979-01-01

    Nitrogen isotope fractionations have been measured in Fischer-Tropsch and Miller-Urey reactions in order to determine whether these processes can account for the large 15 N/ 14 N ratios found in organic matter in carbonaceous chondrites. Polymeric material formed in the Fischer-Tropsch reaction was enriched in 15 N by only 3 promille relative to the starting material (NH 3 ). The 15 N enrichment in polymers from the Miller-Urey reaction was 10-12 promille. Both of these fractionations are small compared to the 80-90 promille differences observed between enstatite chondrites and carbonaceous chondrites. These large differences are apparently due to temporal or spatial variations in the isotopic composition of nitrogen in the solar nebula, rather than to fractionation during the production of organic compounds. (orig.)

  10. The Analysis of Symbols in The Death of A Salaesman by Arthur Miller

    OpenAIRE

    Ardani, Hanida Dwi

    2011-01-01

    Simbol adalah pemaknaan terhadap sesuatu dengan bentuk lain. Di dalam skripsi ini saya menganalisis simbol – simbol yang ditemukan dalam drama yang ditulis oleh Arthur Miller “ Death of a Salesman” . Dalam drama “ Death of a Salesman “ memiliki banyak simbol yang digunakan untuk mempertegas makna dari drama melalui teks yang ada. Simbol bisa berupa perhiasan “ diamond “ yang mempresentasikan keinginan. Kehidupan disimbolkan dalam bentuk hutan “ jungle “ yang mempresentasikan penuh misteri dan...

  11. Utilization of Lavandula angustifolia Miller extracts as naturalrepellents, pharmaceutical and industrial auxiliaries

    Directory of Open Access Journals (Sweden)

    AYOE YUSUFOGLU

    2004-01-01

    Full Text Available Essential oils, absolutes and concretes were prepared from the flowers and leaves of the plant Lavandula angustifolia Miller cultivated in the Bosphorus region of Istanbul, Turkey. The difference in the chemical composition of the mentioned extracts was investigated and compared by using a combination of capillary GC-MS with the aim of offering them as repellent, pharmaceutical and industrial auxiliaries. The IR-spectra, the yields and the physico-chemical data of the extracts were also analysed.

  12. Gabriella Miller Kids First (GMKF/Kids First) Pediatric Research Program | Office of Cancer Genomics

    Science.gov (United States)

    The Gabriella Miller Kids First initiative is a trans-NIH effort to increase understanding of genetic changes associated with certain devastating pediatric conditions. The initiative will develop a centralized database of well-curated clinical and genetic sequence data from childhood cancer and structural birth defects cohorts comprising thousands of patients and their families. To learn more about the initiative and the data available, please visit https://commonfund.nih.gov/kidsfirst

  13. Review: Miller, Michelle Ann (2009, Rebellion and Reform in Indonesia – Jakarta’s Security and Autonomy Policies in Aceh

    Directory of Open Access Journals (Sweden)

    Antje Missbach

    2009-01-01

    Full Text Available Review of the monograph: Miller, Michelle Ann, Rebellion and Reform in Indonesia – Jakarta’s Security and Autonomy Policies in Aceh, London/ New York: Routledge, 2009, ISBN 13: 978-0-415-45467-4, 240 pages.

  14. Téma: David Miller o nacionalismu a globální spravedlnosti. Úvod

    Czech Academy of Sciences Publication Activity Database

    Velek, Josef

    2007-01-01

    Roč. 55, č. 2 (2007), s. 39-41 ISSN 0015-1831 Institutional research plan: CEZ:AV0Z90090514 Keywords : nationalism * cosmopolitanism * global justice * D. Miller Subject RIV: AA - Philosophy ; Religion

  15. TUBERCULOSIS COMO ENFERMEDAD OCUPACIONAL

    Science.gov (United States)

    Mendoza-Ticona, Alberto

    2014-01-01

    Existe evidencia suficiente para declarar a la tuberculosis como enfermedad ocupacional en diversos profesionales especialmente entre los trabajadores de salud. En el Perú están normados y reglamentados los derechos laborales inherentes a la tuberculosis como enfermedad ocupacional, como la cobertura por discapacidad temporal o permanente. Sin embargo, estos derechos aún no han sido suficientemente socializados. En este trabajo se presenta información sobre el riesgo de adquirir tuberculosis en el lugar de trabajo, se revisan las evidencias para declarar a la tuberculosis como enfermedad ocupacional en trabajadores de salud y se presenta la legislación peruana vigente al respecto. PMID:22858771

  16. Validation of the Thomson, Perry and Miller (2007 Collaboration Instrument in the South African context

    Directory of Open Access Journals (Sweden)

    Debbie Roberts

    2017-02-01

    Full Text Available Orientation: Collaboration is deemed important in today’s connected and complex business environment. People’s ability to collaborate with each other in organisations is becoming a business imperative. This study focuses on a valid measurement of collaboration within organisations. Research purpose: Thomson, Perry and Miller (2007 developed a collaboration measurement instrument in the United States. The aim of this study was to validate this instrument for a South African context. Motivation for the study: South African organisations face unique challenges that require optimal use of resources to improve business results. Effective collaboration is considered a powerful strategy to achieve this. Measuring the extent of collaboration can help to identify required changes in business practices. As far as could be established, there is no evidence of collaboration instruments developed and validated in South Africa. Research design, approach and method: Additional items were designed for further development of the Thomson, Perry and Miller (2007 Collaboration Instrument sub-scales, as suggested by the authors. The revised questionnaire consisting of 31 (17 existing, 14 new items was distributed electronically to 4200 employees in two organisations, with 343 valid responses received. Reliability and construct validity were tested, as was convergent validity of the norms factor with the Trust in Teams Scale. Main findings: The results of the study support a four-factor, 29-item model of collaboration when applied to a South African sample. Cronbach’s alpha ranged between 0.85 and 0.95. Confirmatory Factor Analysis fits were at an acceptable level. Convergent validity showed a moderate fit with the data. Practical/managerial implications: South African managers and human resources practitioners can utilise results to foster a collaborative environment. Contribution/value-add: This study builds on the theoretical concept of collaboration as

  17. Why there is no supernatural morality: response to Miller's opening statement.

    Science.gov (United States)

    Shermer, Michael

    2016-11-01

    If one is going to argue that objective morality depends on an Archimedean point outside the natural world, then it would seem to imply that this source is necessarily supernatural. Thus, Christian Miller begins by defining precisely who he thinks this supernatural moral law giver is: the omniscient, omnipotent, and omnibenevolent creator of the universe who is still actively involved with human affairs-Elohim, Jehovah, Yahweh, or Allah-aka God. Already I'm skeptical. © 2016 New York Academy of Sciences.

  18. William Allen Miller (1817-70): a distinguished scientist re-discovered.

    Science.gov (United States)

    Ashley-Miller, Michael

    2008-11-01

    Dr William Allen Miller developed an early interest in science and astronomy at secondary school. Although qualifying in medicine, he pursued a career in Chemistry at King's College, London. A particular interest in spectrum analysis led to a collaboration with Dr Huggins in examining the spectra of stars. For this work they each received the Gold Medal of the Royal Astronomical Society. His subsequent work at King's College, the Royal Society, the Courts of Law and for various Government enterprises earned him an outstanding scientific and advisory reputation.

  19. Lee Miller à travers la Roumanie, l’appareil photo à la main (1946

    Directory of Open Access Journals (Sweden)

    Adrian-Silvan Ionescu

    2012-01-01

    Full Text Available A former model and fashion photographer turned war photographer, Lee Miller visited Romania twice, in 1938 and 1946 respectively. After her second visit she published her impressions and pictures, under the title of Roumania, in Vogue magazine. Besides the published material there are her manuscripts from The Lee Miller Achives at Farley Farm House, East Sussex, England, on which this paper is based. She crossed the border coming from Hungary in early February 1946. Heading for Sibiu her car, a Chevrolet Sedan, slipping on the ice-covered road, stopped on a snowbank far off in the ditch. While looking for help in the nearby village she and her companions left the car unguarded to discover it plundered of everything, wheels included.On a Sunday afternoon she had the privilege of being received by King Mihai I and Queen Mother Elena with whom she talked exstensively. She also took magnificent pictures with the Royal Family in the imposing Peleş Castle. At Sinaia, „the summer capital of Roumania” she had also the opportunity to portray Dinu Brătianu and Iuliu Maniu, the two elderly statesmen. Maniu was surrounded by friends and party members, among whom was young Corneliu Coposu, his private secretary.Moving to Bucharest, she met old friends such as Harri Brauner and his wife, Lena Constante, with whom she wandered through the country eight years ago. Lena and Elena Pătrășcanu, wife of Lucrețiu Pătrășcanu, Minister of Justice, have started a successful marionette theatre where Lee took nice pictures. Other were taken on the streets, with peasants, street vendors and their customers. Harri took her to a bistro where they met Maria Lătărețu, the celebrating folk singer whom Brauner recorded many times. They enjoyed her songs. Suffering from fibrositis, Lee Miller undertook a peculiar treatment in a gypsy village where the inhabitants were dancing bears trainers. She was massaged by a bear weighing about 300 pounds while Brauner took

  20. Human radiation studies: Remembering the early years. Oral history of radiologist Earl R. Miller, M.D., August 9 and 17, 1994

    International Nuclear Information System (INIS)

    1995-06-01

    Dr. Earl R. Miller was interviewed by representatives of US DOE Office of Human Radiation Research (OHRE). The interview covers Dr. Miller's involvement with the Manhattan Engineer District, with total body irradiation, and heavy-ion therapy. Dr. Miller's remembrances include wartime work on radiation exposure, Joe Hamilton, Neutron Therapy research, means of obtaining isotopes, consent forms, infinite laminograms, invention of a baby holder to alleviate exposure of radiological technicians in diagnostic procedures involving infants, and several personages

  1. Performance evaluation of an irreversible Miller cycle comparing FTT (finite-time thermodynamics) analysis and ANN (artificial neural network) prediction

    International Nuclear Information System (INIS)

    Mousapour, Ashkan; Hajipour, Alireza; Rashidi, Mohammad Mehdi; Freidoonimehr, Navid

    2016-01-01

    In this paper, the first and second-laws efficiencies are applied to performance analysis of an irreversible Miller cycle. In the irreversible cycle, the linear relation between the specific heat of the working fluid and its temperature, the internal irreversibility described using the compression and expansion efficiencies, the friction loss computed according to the mean velocity of the piston and the heat-transfer loss are considered. The effects of various design parameters, such as the minimum and maximum temperatures of the working fluid and the compression ratio on the power output and the first and second-laws efficiencies of the cycle are discussed. In the following, a procedure named ANN is used for predicting the thermal efficiency values versus the compression ratio, and the minimum and maximum temperatures of the Miller cycle. Nowadays, Miller cycle is widely used in the automotive industry and the obtained results of this study will provide some significant theoretical grounds for the design optimization of the Miller cycle. - Highlights: • The performance of an irreversible Miller cycle is investigated using FFT. • The effects of design parameters on the performance of the cycle are investigated. • ANN is applied to predict the thermal efficiency and the power output values. • There is an excellent correlation between FTT and ANN data. • ANN can be applied to predict data where FTT analysis has not been performed.

  2. I teoremi di Modigliani-Miller: una pietra miliare della finanza (The theorems of Modigliani-Miller: a cornerstone of finance

    Directory of Open Access Journals (Sweden)

    Marco Pagano

    2012-04-01

    Full Text Available The theorems of Modigliani and Miller (MM is a cornerstone of finance for two reasons.The first is substantial and is derived from the nature of "propositions irrelevant": they identify a case in which the financial structure and dividend policy will not affect the value of firms, and in doing so give us a clear point of reference to understand instead what circumstances these decisions affect the value of firms, and why. In fact, the whole subsequent evolution of corporate finance has explored the consequences of removing the assumptions of MM. The second reason for the importance of the fundamental theorems of MM is methodological: they have been demonstrated with a reasoning based arbitrage, which has set a precedent not only in the area of ​​corporate finance but also in that of the determination of prices of financial securities. I teoremi di Modigliani e Miller (MM sono una pietra miliare della finanza per due ragioni. La prima è sostanziale e deriva dalla loro natura di “proposizioni di irrilevanza”: essi individuano un caso in cui la struttura finanziaria e la politica dei dividendi non influiscono sul valore delle imprese, e così facendo ci danno un chiaro punto di riferimento per capire in quali circostanze invece queste decisioni influiscono sul valore delle imprese, e perché. In effetti, l’intera evoluzione successiva della finanza aziendale ha esplorato le conseguenze della rimozione delle ipotesi di MM. La seconda ragione dell’importanza fondamentale dei teoremi di MM è di tipo metodologico: essi sono stati dimostrati con un ragionamento basato sull’arbitraggio, il che ha stabilito un precedente non solo nel campo della finanza aziendale ma anche e soprattutto in quello della determinazione dei prezzi dei titoli finanziari.  JEL Codes: G32, G35Keywords: struttura finanziaria; politica dei dividendi; valore delle imprese

  3. Pornografia e transgressão na obra literária de Henry Miller

    Directory of Open Access Journals (Sweden)

    Raquel Catunda Pereira

    2016-07-01

    Full Text Available The North American writer Henry Miller was marginalized by literary critics since the first publications of his works in the 40s. Accused of being a pornographic text, the book Tropic of Cancer (1934 was forbidden in many countries. This article aims to analyze the obscene in Henry Miller’s work to prove that, beyond the erotic intention, Miller’s books are an expression of freedom and rejection of moral standards. In order to achieve our goal, we will use as theoretical basis the articles Criticismo e sexualidade: uma leitura de Tropico of Capricorn de Henry Miller, by Flávia Andréa Rodrigues Benfatt, and Literatura marginal americana: do épico confessional ao niilismo erótico, by Lainister de Oliveira. The texts mentioned above grant us the argumentation necessary to the analysis of pornographic discourse in Henry Miller’s literary works as the author’s aesthetics choice of taking himself as a transgressor in a decadent society.

  4. Compensation of the detector capacitance presented to charge-sensitive preamplifiers using the Miller effect

    Energy Technology Data Exchange (ETDEWEB)

    Kwon, Inyong, E-mail: iykwon@umich.edu [University of Michigan, Ann Arbor, MI (United States); Kang, Taehoon, E-mail: thnkang@umich.edu [University of Michigan, Ann Arbor, MI (United States); Wells, Byron T., E-mail: wells@galtresearch.com [Galt LLC, Ypsilanti, MI (United States); D’Aries, Lawrence J., E-mail: lawrence.j.daries.civ@mail.mil [Picatinny Arsenal, Rockaway Township, NJ (United States); Hammig, Mark D., E-mail: hammig@umich.edu [University of Michigan, Ann Arbor, MI (United States)

    2015-06-01

    This paper describes an integrated circuit design for a modified charge-sensitive amplifier (CSA) that compensates for the effect of capacitance presented by nuclear radiation detectors and other sensors. For applications that require large area semiconductor detectors or for those semiconductor sensors derived from high permittivity materials such as PbSe, the detector capacitance can degrade the system gain and bandwidth of a front-end preamplifier, resulting in extended rise times and attenuated output voltage signals during pulse formation. In order to suppress the effect of sensor capacitance, we applied a bootstrap technique into a traditional CSA. The technique exploits the Miller effect by reducing the effective voltage difference between the two sides of a radiation detector which minimizes the capacitance presented to the differential common-source amplifier. This new configuration is successfully designed to produce effective gain even at high detector capacitance. The entire circuit, including a core CSA with feedback components and a bootstrap amplifier, are implemented in a 0.18 μm CMOS process with a 3.3 V supply voltage. - Highlights: • A modified CSA was implemented for detector capacitance compensation. • Increasing detector capacitance degrades gain and rise time. • A bootstrap amplifier exploiting the Miller effect is described. • It allows using large area radiation sensors for high radiation-interaction rates. • Intensive noise analyses show that SNR is much better with the technique.

  5. Concentrated nesting of mallards and gadwalls on Miller Lake Island, North Dakota

    Science.gov (United States)

    Duebbert, H.F.; Lokemoen, J.T.; Sharp, D.E.

    1983-01-01

    Island-nesting mallards (Anas platyrhynchos) and gadwalls (A. strepera) were studied on a 4.5-ha island in 385-ha Miller Lake in northwestern North Dakota during 1976-80. During the 5-year study, 2,561 duck nests of 9 species were found on Island A located 180 m offshore; 59% were mallard and 34% were gadwall. In patches of shrub cover, which contained the greatest concentrations of nests, densities ranged from 241 to 389 mallard nests/ha and from 139 to 237 gadwall nests/ha. Over 97% of the nests were placed in 4 patches of shrubs totaling about 1 ha of western snowberry (Symphoricarpos occidentalis)--Woods rose (Rosa woodsii) cover, which composed about 30% of the island's vegetation. Average hatching success was 85% for clutches of all species. Abandonment averaged 14% (348 of 2,426 nests) and was the major cause of egg failure. Only 15 nests (eggs in successful nests averaged 83% for mallards and 87% for gadwalls. Despite the close spacing of nests, most individual hens maintained normal nesting regimes. Eighty-one percent of the mallard clutches contained 7-13 eggs and 81% of the gadwall clutches contained 8-14 eggs. Island A in Miller Lake provides an outstanding example of the potential for high reproduction levels of mallards and gadwalls nesting in small areas of predator-free habitats.

  6. Hoy como ayer

    OpenAIRE

    Rodríguez M.

    2010-01-01

    Leyendo el artículo titulado “Los medicamentos baratos” de la revista La Farmacia Española, publicada en Madrid el jueves 21 de diciembre de 1893, uno se pregunta cómo puede ser que se reconozca la situación como si fuera de ahora mismo, cómo puede ser que estemos igual que hace más de cien años. Entonces eran los descuentos que se empezaban a extender en las farmacias, francesas sobre todo, y que amenazaban el prestigio profesional de todo el colectivo. Con frases como éstas se define la sit...

  7. La razonabilidad como virtud

    OpenAIRE

    Muñoz Oliveira, Luis Humberto

    2008-01-01

    Consultable des del TDX Títol obtingut de la portada digitalitzada Esta tesis doctoral explora la idea de que la razonabilidad es una virtud fundamental para que las sociedades plurales puedan convertirse en, o mantenerse como, un sistema de cooperación donde la justicia sea posible. La hipótesis central es que la razonabilidad como virtud es una manera de ser tolerante de forma solidaria, es entender al conciudadano, escucharlo, saber que juntos acordaron las reglas de cooperación y ac...

  8. Compensator design using the par scientific miller and ADAC Pinnacle tps

    International Nuclear Information System (INIS)

    Arthur, G.; White, S.

    2001-01-01

    Full text: Ideal compensators are designed so that a uniform dose is given to a specific plane within the treatment volume despite variation in surface contour and non-homogeneity within the volume. Traditionally our department has designed compensators based on missing tissue alone and using lead sheet. We have now acquired a Par Scientific compensator miller and ADAC Pinnacle compensator design software. This poster sets out the investigations carried out to design compensators using this equipment. The investigation consisted of four parts. Part one was an evaluation of the Par Scientific miller's ability to accurately and to reproducibly mill various shapes from foam and cerrobend. It also included an examination of the effects due to varying the parameter options available in the software and the use of substitute milling bits. The second part was the choice of material to be used for the compensator. The following were investigated for moulds: steel grit; steel shot and cerrobend and for direct milling: cerrobend. Part three consisted of an investigation into the effects on compensator design with changes in the many parameter options available in ADAC software. For the final part compensators were designed using the ADAC software for both a Head and Neck, and a Mantle case. The compensators were made using the Par Scientific miller. This consisted of milling the required shape in foam and then filling it with cerrobend. TLDs were used to evaluate the compensators. Evaluation consisted of examining the uniformity of dose in the selected plane. The compensators were also compared to the traditional method for the same cases. Finally a comparison was made of the measured dose with that calculated by the ADAC Pinnacle planning system. The Par Scientific was found to be accurate and consistent, however not suitable for milling solid cerrobend directly. Investigations so far have shown that the use of molten cerrobend poured into milled foam moulds is the most

  9. Aleksei Miller ja "uus impeeriumi ajalugu" / Toomas Karjahärm

    Index Scriptorium Estoniae

    Karjahärm, Toomas, 1944-

    2011-01-01

    Arvustus: Миллер, Алексей. Империя Романовых и национализм : эссе по методологии исторического исследования. Москва : Новое Литературное Обозрение, 2008. (Historica Rossica). Polüetnilisi impeeriume eelistab Miller käsitleda mitte regionaalsete, vaid situatiivsete kategooriatega

  10. Miller-Fisher Syndrome: Are Anti-GAD Antibodies Implicated in Its Pathophysiology?

    Directory of Open Access Journals (Sweden)

    Ioannis E. Dagklis

    2016-01-01

    Full Text Available Miller-Fisher syndrome (MFS is considered as a variant of the Guillain-Barre syndrome (GBS and its characteristic clinical features are ophthalmoplegia, ataxia, and areflexia. Typically, it is associated with anti-GQ1b antibodies; however, a significant percentage (>10% of these patients are seronegative. Here, we report a 67-year-old female patient who presented with the typical clinical features of MFS. Workup revealed antibodies against glutamic acid decarboxylase (GAD in relatively high titers while GQ1b antibodies were negative. Neurological improvement was observed after intravenous gamma globulin and follow-up examinations showed a continuous clinical amelioration with simultaneous decline of anti-GAD levels which finally returned to normal values. This case indicates that anti-GAD antibodies may be associated with a broader clinical spectrum and future studies in GQ1b-seronegative patients could determine ultimately their clinical and pathogenetic significance in this syndrome.

  11. OPTIMIZATION OF MICROWAVE AND AIR DRYING CONDITIONS OF QUINCE (CYDONIA OBLONGA, MILLER USING RESPONSE SURFACE METHODOLOGY

    Directory of Open Access Journals (Sweden)

    Cem Baltacioglu

    2015-03-01

    Full Text Available Effects of slice thickness of quince (Cydonia oblonga Miller , microwave incident power and air drying temperature on antioxidant activity and total phenolic content of quince were investigated during drying in microwave and air drying. Optimum conditions were found to be: i for microwave drying, 285 W and 4.14 mm thick (maximum antioxidant activity and 285 W and 6.85 mm thick (maximum total phenolic content, and ii for air drying, 75 ºC and 1.2 mm thick (both maximum antioxidant activity and total phenolic content. Drying conditions were optimized by using the response surface methodology. 13 experiments were carried out considering incident microwave powers from 285 to 795 W, air temperature from 46 to 74 ºC and slice thickness from 1.2 to 6.8 mm.

  12. Acetylcholine causes rooting in leaf explants of in vitro raised tomato (Lycopersicon esculentum Miller) seedlings.

    Science.gov (United States)

    Bamel, Kiran; Gupta, Shrish Chandra; Gupta, Rajendra

    2007-05-30

    The animal neurotransmitter acetylcholine (ACh) induces rooting and promotes secondary root formation in leaf explants of tomato (Lycopersicon esculentum Miller var. Pusa Ruby), cultured in vitro on Murashige and Skoog's medium. The roots originate from the midrib of leaf explants and resemble taproot. ACh at 10(-5) M was found to be the optimum over a wide range of effective concentrations between 10(-7) and 10(-3) M. The breakdown products, choline and acetate were ineffective even at 10(-3) M concentration. ACh appears to have a natural role in tomato rhizogenesis because exogenous application of neostigmine, an inhibitor of ACh hydrolysis, could mimic the effect of ACh. Neostigmine, if applied in combination with ACh, potentiated the ACh effect.

  13. Was R (Miller v Secretary of State for Exiting the European Union correctly decided?

    Directory of Open Access Journals (Sweden)

    Jacob M. Nolan

    2017-09-01

    Full Text Available Jacob M. Nolan gives a timely examination of the case of R (on the application of Miller and Dos Santos v Secretary of State for Exiting the European Union – arguably amongst the most important cases on constitutional law decided by the UK Supreme Court. In this landmark case the Supreme Court was required to rule on whether the UK Government (the executive could trigger Article 50 of the Treaty on European Union without the authorisation of an Act of Parliament, through the use of the Crown’s prerogative. On an 8 – 3 majority, with Lords Reed, Carnwath, and Hughes dissenting, the Supreme Court upheld the previous High Court ruling that an Act of Parliament was first required.

  14. Concentrations of uranium and thorium isotopes in uranium millers' and miners' tissues

    International Nuclear Information System (INIS)

    Wrenn, M.E.; Singh, N.P.; Paschoa, A.S.; Lloyd, R.D.; Saccomanno, G.

    1985-09-01

    The alpha-emitting isotopes of uranium and thorium were determined in the lungs of 14 former uranium miners and in soft tissues and bones of three miners and two millers. These radionuclides were also determined in soft tissues and bones of seven normal controls. The average concentrations in pCi/kg wet weight in 17 former miners' lungs are as follows: 238 U, 75; 234 U, 80; 230 Th, 79. Concentrations of each nuclide ranged from 2 to 325 pCi/kg. The average ratio of 238 U/ 234 U was 0.92, ranging from 0.64 to 1.06. The mean ratio of 230 Th/ 234 U was 1.04, ranging from 0.33 to 3.54. The near equilibrium between 230 Th and /sup 238,234/U indicates that the rate of elimination of uranium and thorium from lungs is the same in former uranium miners. The concentrations of 234 U and 238 U were highest in lung; however, the concentration of 230 Th in bones was either higher than or comparable to its concentration in lung. The concentration ratios of 230 Th/ 234 U in bone of uranium miners and millers measured in our laboratory have been compared with results predicted by ICRP-30 metabolic models. These results indicate that the ICRP metabolic models for thorium and uranium were only marginally successful in predicting the ratio of 230 Th/ 234 U in bones, and that effective release rate of uranium from skeleton may be more rapid than predicted by the ICRP model. 9 figs., 21 tabs

  15. 5 YEAR PHYSIOTHERAPY AND REHABILITATION RESULTS OF THE PATIENT WITH MILLER FISHER SYNDROME

    Directory of Open Access Journals (Sweden)

    Bihter AKINOĞLU

    2016-08-01

    Full Text Available Background: Miller-Fisher syndrome (MFS is characterized by gait ataxia, external ophtalmoplegia and areflexia and thought as an uncommon variant of Guillain Barre syndrome. Miller-Fisher syndrome is observed in about 5-8% of all Guillain Barre syndrome (GBS cases. In MFS patients, spontaneous improvement was observed in the first 3 months and these improvements were started by the 2nd week. Methods: This case was referred to physiotherapy and rehabilitation program at the 4th week since the appropriate medical treatments were unsuccessful after the attack. The patient was evaluated generally before physiotherapy program, and muscle length, strength loss, deep tendon reflexes, postural impairments and daily difficult activities and positions were assessed. Besides, the desired daily activities were identified by The Canadian Occupational Performance Measure (COPM. Treatment program was adjusted according to the patient and changes during treatment period were observed. Physiotherapy program included classical physiotherapy methods: posture correction, correction of short muscles, muscle strengthening, flexibility increase, balance/coordination, sitting and standing functions and walking improvement and climbing up stairs. Results: After the treatment, lower extremity muscle shortness decreased and muscle strength, standing on one foot duration, independent walk speed increased in time. Before treatment, he could not climbing upstairs, but it was achieved 1 year after the treatment. Berg balance score increased in time and his most desired activities by COPM (10/10 were could be performed after the treatment. Conclusion: The case improved with physiotherapy and rehabilitation program gradually with years.In the treatment of MFS patients, physiotherapy and rehabilitation being part of the treatment will be useful.

  16. Fire Frequency Effects on Longleaf Pine (Pinus palustris P. Miller) Vegetation in South Carolina and Northeast Florida, USA

    Science.gov (United States)

    Jeff S. Glitzenstein; Donna R. Streng; Dale D. Wade

    2003-01-01

    Southeastern United States habitats dominated by longleaf pine (Pinus pulutris P. Miller) have declined precipitously in area and extent. Conservation of diverse ground-layer vegetation in these endangered habitats depends on prescribed fire. While the need for prescribed fire is now generally accepted, there is disagreement concerning the most...

  17. Johannes Miller o výzdobě Auly olomoucké univerzity v letech 1718 - 1719

    Czech Academy of Sciences Publication Activity Database

    Dolejší, Kateřina

    -, č. 294 (2007), s. 81-84 ISSN 1212-1134 R&D Projects: GA ČR GA408/03/0059 Institutional research plan: CEZ:AV0Z80330511 Keywords : Baroque wall painting * Olomouc University * Johannes Miller Subject RIV: AL - Art, Architecture, Cultural Heritage

  18. Charles Miller Fisher: the 65th anniversary of the publication of his groundbreaking study "Transient Monocular Blindness Associated with Hemiplegia".

    Science.gov (United States)

    Araújo, Tiago Fernando Souza de; Lange, Marcos; Zétola, Viviane H; Massaro, Ayrton; Teive, Hélio A G

    2017-10-01

    Charles Miller Fisher is considered the father of modern vascular neurology and one of the giants of neurology in the 20th century. This historical review emphasizes Prof. Fisher's magnificent contribution to vascular neurology and celebrates the 65th anniversary of the publication of his groundbreaking study, "Transient Monocular Blindness Associated with Hemiplegia."

  19. A CLINICAL ASSESSMENT OF MACINTOSH BLADE, MILLER BLADE AND KING VISIONTM VIDEOLARYNGOSCOPE FOR LARYNGEAL EXPOSURE AND DIFFICULTY IN ENDOTRACHEAL INTUBATION

    Directory of Open Access Journals (Sweden)

    Apoorva Mahendera

    2016-03-01

    Full Text Available CONTEXT Previous studies suggest glottic view is better achieved with straight blades while tracheal intubation is easier with curved blades and videolaryngoscope is better than conventional laryngoscope. AIMS Comparison of conventional laryngoscope (Macintosh blade and Miller blade with channelled videolaryngoscope (King Vision TM with respect to laryngeal visualisation and difficulty in endotracheal intubation. SETTINGS AND DESIGN This prospective randomised comparative study was conducted at a tertiary care hospital (in ASA I and ASA II patients after approval from the Institutional Ethics Committee. METHODS We compared Macintosh, Miller, and the King VisionTM videolaryngoscope for glottic visualisation and ease of tracheal intubation. Patients undergoing elective surgeries under general anaesthesia requiring endotracheal intubation were randomly divided into three groups (N=180. After induction of anaesthesia, laryngoscopy was performed and trachea intubated. We recorded visualisation of glottis (Cormack-Lehane grade-CL, ease of intubation, number of attempts, need to change blade, and need for external laryngeal manipulation. STATISTICAL ANALYSIS Demographic data, Mandibular length, Mallampati classification were compared using ANOVA, Chi-square test, Kruskal-Wallis Test, where P value <0.005 is statically significant. RESULTS CL grade 1 was most often observed in King Vision -TM VL group (90% which is followed by Miller (28.33%, and Macintosh group (15%. We found intubation was to be easier (grade 1 with King Vision -TM VL group (73.33%, followed by Macintosh (38.33%, and Miller group (1.67%. External manipulation (BURP was needed more frequently in patients in Miller group (71.67%, followed by Macintosh (28.33% and in King Vision -TM VL group (6.67%. All (100% patients were intubated in the 1 st attempt with King Vision -TM VL group, followed by Macintosh group (90% and Miller group (58.33%. CONCLUSIONS In patients with normal airway

  20. Comments on: understanding the Larson--Miller parameter, by F.T. Furillo, S. Purushothaman and J. K. Tien

    International Nuclear Information System (INIS)

    DiMelfi, R.J.

    1978-01-01

    The Larson--Miller parameter has been a useful tool in the handling of creep rupture data. Essentially, this is because, as an empirical scheme, it has so often been successful at correlating such data for a wide range of experimental conditions. Its use has proved invaluable to studies of nuclear fuel cladding embrittlement in reactor environments under diverse loading conditions. The kind of master plot that is generated through the use of this parameter is very helpful for predicting low stress-long time rupture behavior. The basic premise behind the success of the Larson--Miller method lies in the fortuitous elimination of one of the two independent variables that can be controlled during a creep test: the absolute temperature T and the applied stress sigma. When a test sample is stressed at temperature, it will fail after a time t/sub r/, depending upon the values of some unspecified, and usually unknown, material parameters. Larson and Miller (2) presented a simple expression involving these creep rupture variables which is only a function of the applied stress: LMP = T(C+log tr) = f(sigma). The quantity C is specified as a material constant, but is roughly 20 for a wide variety of commercial alloys. The elimination of the temperature dependence allows one to construct master rupture curves. This is the power of the Larson--Miller method. Once the function F(sigma) is determined graphically, regardless of its algebraic form, the stress is needed in order to know LMP. Knowing LMP, one can calculate t/sub r/ as a function of temperature. The paper under discussion does not serve to further an understanding of this useful empirical parameter. In fact, their derivation leads to a parameter similar in form to Larson and Miller's, except that it is a function of both stress and temperature, thereby defeating the purpose of the method

  1. Ouabaina como Hormona

    OpenAIRE

    J. Hernando Ordoñez

    1996-01-01

    Comentario sobre su origen endógeno y sus aplicaciones terapéuticas

    Pocas drogas han sido más estudiadas que el grupo de los digitálicos, estrofantinas y ouabaina, cuyo estudio es objeto del presente trabajo.

    La ouabaina empezó a ser estudiada desde el siglo pasado. La primera referencia conocida corresponde a Pelikan, 1865 (1), como veneno que empleaban para las flechas en Gabón (Africa). (.)

  2. Hoy como ayer

    Directory of Open Access Journals (Sweden)

    Rodríguez M.

    2010-06-01

    Full Text Available Leyendo el artículo titulado “Los medicamentos baratos” de la revista La Farmacia Española, publicada en Madrid el jueves 21 de diciembre de 1893, uno se pregunta cómo puede ser que se reconozca la situación como si fuera de ahora mismo, cómo puede ser que estemos igual que hace más de cien años. Entonces eran los descuentos que se empezaban a extender en las farmacias, francesas sobre todo, y que amenazaban el prestigio profesional de todo el colectivo. Con frases como éstas se define la situación que se presentaba en aquel momento: “…el desprestigio de que vaya por unos cuantos desnaturalizándose el ejercicio de la farmacia en tal forma que se convierta en un comercio impuro y de la peor estofa; pero conviene mucho combatir con mano firme la tendencia a la baratería, tanto más cuanto que no puede dudarse que significa un rebajamiento a todas luces nocivo y que supone una desorganización que nos llevaría en breve a la más completa ruina, y lo que creo aún más grave, a la desmoralización y el desorden, que no se compadecen en modo alguno con lo que en realidad es hoy y ha sido siempre el ejercicio de una profesión genuinamente científica como lo es la de la farmacia”. La propuesta que se hacía para controlar la situación era “la limitación de farmacias, con vigilancia estrecha del Estado y tarifa uniforme oficial”, así como “hace falta mucha inteligencia y mucha unión, hace falta que nadie permanezca indiferente, que todos y cada uno pongan de su parte lo que puedan”. Nuestra profesión mezcla una doble vertiente sanitaria y comercial que no siempre es fácil mantener equilibrada y, por lo que se ve, esto ha ocurrido así desde siempre. El problema que existe hoy en día es la mercantilización de la farmacia, un desplazamiento de establecimiento sanitario hacia una simple empresa.

  3. Miller Early Childhood Sustained Home-visiting (MECSH trial: design, method and sample description

    Directory of Open Access Journals (Sweden)

    Anderson Teresa

    2008-12-01

    Full Text Available Abstract Background Home visiting programs comprising intensive and sustained visits by professionals (usually nurses over the first two years of life show promise in promoting child health and family functioning, and ameliorating disadvantage. Australian evidence of the effectiveness of sustained nurse home visiting in early childhood is limited. This paper describes the method and cohort characteristics of the first Australian study of sustained home visiting commencing antenatally and continuing to child-age two years for at-risk mothers in a disadvantaged community (the Miller Early Childhood Sustained Home-visiting trial. Methods and design Mothers reporting risks for poorer parenting outcomes residing in an area of socioeconomic disadvantage were recruited between February 2003 and March 2005. Mothers randomised to the intervention group received a standardised program of nurse home visiting. Interviews and observations covering child, maternal, family and environmental issues were undertaken with mothers antenatally and at 1, 12 and 24 months postpartum. Standardised tests of child development and maternal-child interaction were undertaken at 18 and 30 months postpartum. Information from hospital and community heath records was also obtained. Discussion A total of 338 women were identified and invited to participate, and 208 were recruited to the study. Rates of active follow-up were 86% at 12 months, 74% at 24 months and 63% at 30 months postpartum. Participation in particular data points ranged from 66% at 1 month to 51% at 24 months postpartum. Rates of active follow-up and data point participation were not significantly different for the intervention or comparison group at any data point. Mothers who presented for antenatal care prior to 20 weeks pregnant, those with household income from full-time employment and those who reported being abused themselves as a child were more likely to be retained in the study. The Miller Early

  4. JOGOS PAISAGÍSTICOS: MAPAS E ATLAS COMO CONCEITOS OPERATIVOS

    Directory of Open Access Journals (Sweden)

    Frederico Canuto

    2014-04-01

    Full Text Available O presente artigo coloca em discussão a produção de paisagens como prática que pode envolver diferentes agentes e percepções, não sendo estreitamente vinculado a um único olhar dito objetivo. A partir de tal discussão, mapas e atlas, instrumentos cartográficos por demais usuais, são aqui transformados em conceitos para se pensar a paisagem e sua produção na contemporaneidade levando em conta diferentes recortes epistemológicos, pontos de vista, agentes e sujeitos. Usando o conceito de espasmos advindo da critica do filósofo francês Gilles Deleuze a respeito das pinturas Francis Bacon, tais operadores serão discutidos como espaços autônomos de produção de paisagens a despeito de qualquer imagem exterior existente a priori. Serão usadas duas obras que, por sua vez, apontarão para a definição destes mesmos operadores: o trabalho artístico participativo Alter Bahnhof Vídeo Walk dos artistas Janet Cardiff e George Miller apresentado na DOCUMENTA XIII de Kassel em 2012 e o site interativo We feel Fine. An Exploration of Human Emotion, in Six Movements feito pelos designers Jonathan Harris e Sep Kamvar. E na conclusão, pretende-se discutir o mapa e atlas não como instrumentos de leitura de um real, mas eles mesmos como um real narrativo.

  5. Changes in sugars, acids, and volatiles during ripening of koubo [Cereus peruvianus (L.) Miller] fruits.

    Science.gov (United States)

    Ninio, Racheli; Lewinsohn, Efraim; Mizrahi, Yosef; Sitrit, Yaron

    2003-01-29

    The columnar cactus Cereus peruvianus (L.) Miller, Cactaceae (koubo), is grown commercially in Israel. The unripe fruits are green, and the color changes to violet and then to red when the fruit is fully ripe. The content of soluble sugars was found to increase 5-fold during ripening. Glucose and fructose were the main sugars accumulated in the fruit pulp, and each increased from 0.5 to 5.5 g/100 g fresh weight during ripening. The polysaccharides content decreased during ripening from 1.4 to 0.4 g/100 g fresh weight. The titratable acidity decreased and the pH increased during ripening. The major organic acid found in the fruit was malic acid, which decreased from 0.75 g/100 g fresh weight at the mature green stage to 0.355 g/100 g fresh weight in ripe fruits. Citric, succinic, and oxalic acids were found in concentrations lower than 0.07 g/100 g fresh weight. Prominent accumulation of aroma volatiles occurred toward the end of the ripening process. The main volatile found in the ripe fruit was linalool, reaching concentrations of 1.5-3.5 microg/g fresh weight.

  6. An Extension of the Miller Equilibrium Model into the X-Point Region

    Science.gov (United States)

    Hill, M. D.; King, R. W.; Stacey, W. M.

    2017-10-01

    The Miller equilibrium model has been extended to better model the flux surfaces in the outer region of the plasma and scrape-off layer, including the poloidally non-uniform flux surface expansion that occurs in the X-point region(s) of diverted tokamaks. Equations for elongation and triangularity are modified to include a poloidally varying component and grad-r, which is used in the calculation of the poloidal magnetic field, is rederived. Initial results suggest that strong quantitative agreement with experimental flux surface reconstructions and strong qualitative agreement with poloidal magnetic fields can be obtained using this model. Applications are discussed. A major new application is the automatic generation of the computation mesh in the plasma edge, scrape-off layer, plenum and divertor regions for use in the GTNEUT neutral particle transport code, enabling this powerful analysis code to be routinely run in experimental analyses. Work supported by US DOE under DE-FC02-04ER54698.

  7. Nutritive evaluation of a non-conventional leafy vegetable (Pereskia aculeata Miller).

    Science.gov (United States)

    Takeiti, Cristina Y; Antonio, Graziella C; Motta, Eliana M P; Collares-Queiroz, Fernanda P; Park, Kil J

    2009-01-01

    Pereskia aculeata Miller is a native cactus that can be found in Brazil and is called 'ora-pro-nobis' (OPN). Many people from poor communities consume the dark green leaves of OPN as a vegetable. The objective of the present work was to evaluate the nutritional components in terms of proximate composition, minerals, vitamins, protein content and their in vitro protein digestibility. OPN leaves showed remarkable levels of total dietary fiber (39.1% dry basis), minerals (calcium, magnesium, manganese and zinc) and vitamins (vitamin A, vitamin C and folic acid). Among amino acids, tryptophan was the most abundant (20.5% of the total amino acids) and sodium dodecyl sulfate-polyacrylamide gel electrophoresis showed small peptides, inferior to 6.5 kDa, and four major bands (61 kDa, 53 kDa, 33 kDa, and 15 kDa). The protein digestibility corrected amino acid score showed the lowest value of sulfur-amino acids (Met+Cys). OPN leaves could be considered a good source of minerals, vitamins and amino acids, and may serve as a potential functional ingredient.

  8. Enhanced Synthesis of Alkyl Amino Acids in Miller's 1958 H2S Experiment

    Science.gov (United States)

    Parker, Eric T.; Cleaves, H. James; Callahan, Michael P.; Dworkin, James P.; Glavin, Daniel P.; Lazcano, Antonio; Bada, Jeffrey L.

    2011-01-01

    Stanley Miller's 1958 H2S-containing experiment, which included a simulated prebiotic atmosphere of methane (CH4), ammonia (NH3), carbon dioxide (CO2), and hydrogen sulfide (H2S) produced several alkyl amino acids, including the alpha-, beta-, and gamma-isomers of aminobutyric acid (ABA) in greater relative yields than had previously been reported from his spark discharge experiments. In the presence of H2S, aspariic and glutamic acids could yield alkyl amino acids via the formation of thioimide intermediates. Radical chemistry initiated by passing H2S through a spark discharge could have also enhanced alkyl amino acid synthesis by generating alkyl radicals that can help form the aldehyde and ketone precursors to these amino acids. We propose mechanisms that may have influenced the synthesis of certain amino acids in localized environments rich in H2S and lightning discharges, similar to conditions near volcanic systems on the early Earth, thus contributing to the prebiotic chemical inventory of the primordial Earth.

  9. Amino Acids Generated from Hydrated Titan Tholins: Comparison with Miller-Urey Electric Discharge Products

    Science.gov (United States)

    Cleaves, H. James, II; Neish, Catherine; Callahan, Michael P.; Parker, Eric; Fernandez, Facundo M.; Dworkin, Jason P.

    2014-01-01

    Various analogues of Titan haze particles (termed tholins) have been made in the laboratory. In certain geologic environments on Titan, these haze particles may come into contact with aqueous ammonia (NH3) solutions, hydrolyzing them into molecules of astrobiological interest. A Titan tholin analogue hydrolyzed in aqueous NH3 at room temperature for 2.5 years was analyzed for amino acids using highly sensitive ultra-high performance liquid chromatography coupled with fluorescence detection and time-of-flight mass spectrometry (UHPLC-FDToF-MS) analysis after derivatization with a fluorescent tag. We compare here the amino acids produced from this reaction sequence with those generated from room temperature Miller-Urey (MU) type electric discharge reactions. We find that most of the amino acids detected in low temperature MU CH4N2H2O electric discharge reactions are generated in Titan simulation reactions, as well as in previous simulations of Triton chemistry. This argues that many processes provide very similar mixtures of amino acids, and possibly other types of organic compounds, in disparate environments, regardless of the order of hydration. Although it is unknown how life began, it is likely that given reducing conditions, similar materials were available throughout the early Solar System and throughout the universe to facilitate chemical evolution.

  10. Optimizing the Betts-Miller-Janjic cumulus parameterization with Intel Many Integrated Core (MIC) architecture

    Science.gov (United States)

    Huang, Melin; Huang, Bormin; Huang, Allen H.-L.

    2015-10-01

    The schemes of cumulus parameterization are responsible for the sub-grid-scale effects of convective and/or shallow clouds, and intended to represent vertical fluxes due to unresolved updrafts and downdrafts and compensating motion outside the clouds. Some schemes additionally provide cloud and precipitation field tendencies in the convective column, and momentum tendencies due to convective transport of momentum. The schemes all provide the convective component of surface rainfall. Betts-Miller-Janjic (BMJ) is one scheme to fulfill such purposes in the weather research and forecast (WRF) model. National Centers for Environmental Prediction (NCEP) has tried to optimize the BMJ scheme for operational application. As there are no interactions among horizontal grid points, this scheme is very suitable for parallel computation. With the advantage of Intel Xeon Phi Many Integrated Core (MIC) architecture, efficient parallelization and vectorization essentials, it allows us to optimize the BMJ scheme. If compared to the original code respectively running on one CPU socket (eight cores) and on one CPU core with Intel Xeon E5-2670, the MIC-based optimization of this scheme running on Xeon Phi coprocessor 7120P improves the performance by 2.4x and 17.0x, respectively.

  11. Chemical composition and antifungal activity of the essential oils of Lavandula pedunculata (Miller) Cav.

    Science.gov (United States)

    Zuzarte, Monica; Gonçalves, Maria J; Cavaleiro, Carlos; Dinis, Augusto M; Canhoto, Jorge M; Salgueiro, Lígia R

    2009-08-01

    The chemical composition and antifungal activity of the essential oils of Lavandula pedunculata (Miller) Cav., harvested in North and Central Portugal, were investigated. The essential oils were isolated by hydrodistillation and analyzed by GC and GC/MS. The minimal-inhibitory concentration (MIC) and the minimal-lethal concentration (MLC) of the essential oils and of their major constituents were used to evaluate the antifungal activity against different strains of fungi involved in candidosis, dematophytosis, and aspergillosis. The oils were characterized by a high percentage of oxygenated monoterpenes, the main compounds being 1,8-cineole (2.4-55.5%), fenchone (1.3-59.7%), and camphor (3.6-48.0%). Statistical analysis differentiated the essential oils into two main types, one characterized by the predominance of fenchone and the other one by the predominance of 1,8-cineole. Within the 1,8-cineole chemotype, two subgroups were well-defined taking into account the percentages of camphor. A significant antifungal activity of the oils was found against dermatophyte strains. The essential oil with the highest content of camphor was the most active with MIC and MLC values ranging from 0.32-0.64 microl/ml.

  12. MANEJO DE CORTE DAS FOLHAS DE Copernicia prunifera (Miller H. E. Moore NO PIAUÍ

    Directory of Open Access Journals (Sweden)

    CLEMILTON DA SILVA FERREIRA

    2013-01-01

    Full Text Available The carnauba (Copernicia prunifera (Miller HE Moore is a native fruit species to the north- east of Brazil and its exploration is based mainly on the extract of wax powder from leaves. The objective of this study was to evaluate the effect of different management strategies of cutting leaves, developmental stages and leaf age on leaf traits and physical-chemical attributes of carnauba wax in a natural population of carnauba palm located at the Cajazeira Farm, municipality of União, Piauí state, Brazil. The selected plants were identi- fied and classified in two developmental stages: capoteiro and adult palm. The management strategies cutting leaves were: one cut in August; two cuts, the first in August and the second in December; and one cut in De- cember. The leaves were separated according to age into new and old leaf. It was performed the individual analysis of variance of leaf number (LN, wax powder production (WP, ratio WP/LN, moisture content, impu- rities content and wax yield for each management systems as well as the analysis of the different managements. Leaf age presented as the attribute of greater relevance in the commercial use of carnauba. The best manage- ment strategy for cutting leaves of carnauba consists of a single annual cut in December.

  13. Recurrent Guillain-Barré syndrome, Miller Fisher syndrome and Bickerstaff brainstem encephalitis.

    Science.gov (United States)

    Ishii, Junko; Yuki, Nobuhiro; Kawamoto, Michi; Yoshimura, Hajime; Kusunoki, Susumu; Kohara, Nobuo

    2016-05-15

    Guillain-Barré syndrome (GBS), Miller Fisher syndrome (MFS), and Bickerstaff brainstem encephalitis (BBE) are usually monophasic, but some patients experience recurrences after long asymptomatic intervals. We aimed to investigate clinical features of recurrent GBS, MFS, and BBE at a single hospital. Records from 97 consecutive patients with GBS, MFS or BBE who were admitted to a tertiary hospital between 2001 and 2013 were reviewed. Clinical and laboratory features of patients with recurrent GBS, MFS, or BBE were investigated. Patients included 55 (32 males) with GBS, 34 (22 males) with MFS, and 8 (6 males) with BBE. Recurrent cases occurred in 2 (4%) of the 55 patients with GBS, 4 (12%) of the 34 patients with MFS, and 2 (25%) of the 8 patients with BBE. Patients with recurrent MFS had a tendency to be younger at the first episode than patients with non-recurrent MFS (median, 22 versus 37years old). Symptoms and signs were less severe during relapses than during the initial episode in recurrent patients. Recurrences occurred more frequently in patients with MFS or BBE compared with those with GBS. Patients with recurrent MFS might be younger than those with non-recurrent MFS. Copyright © 2016 Elsevier B.V. All rights reserved.

  14. Electrophysiological evidence of cerebellar fiber system involvement in the Miller Fisher syndrome.

    Science.gov (United States)

    Lo, Y L; Fook-Chong, S; Chan, L L; Ong, W Y; Ratnagopal, P

    2010-01-15

    In the Miller Fisher syndrome (MFS), ataxia may be due involvement of Ia afferents and the cerebellum. Transcranial magnetic stimulation (TMS) over the cerebellum is known to interfere transiently with normal function. In this study, we utilized a previously described TMS protocol over the cerebellum in combination with ballistic movements to investigate cerebellar dysfunction in MFS patients. The agonist (biceps) reaction time in MFS patients during a motor cancellation task was not significantly reduced during the initial TMS study. However, during the repeat TMS study, significant reduction was seen for all patients, in tandem with clinical recovery. There was significant correlation between anti-GQ1b IgG titers and change in agonist reaction time between the initial and repeat TMS studies. TMS likely affected horizontally orientated parallel fibers in the cerebellar molecular layer. During disease onset, antibody binding may have interfered with facilitation of reaction time during motor cancellation tasks seen in normal subjects. Normalization of reaction time facilitation corresponded to resolution of antibody-mediated interference in the molecular layer. Our study has provided evidence suggesting parallel fiber involvement in MFS, and suggested a role of anti-GQ1b IgG antibody in these changes.

  15. Suitability of the Miller Function and Participation Scales (M-FUN) for use with Israeli Children.

    Science.gov (United States)

    Rihtman, Tanya; Parush, Shula

    2014-01-01

    OBJECTIVE. Our aim was to generate a Hebrew translation of the Miller Function and Participation Scales (M-FUN) and assess the validity of U.S. norms for Israeli children. METHOD. All components of the M-FUN were translated, and a pilot study revealed a need for further investigation. The Hebrew M-FUN's fine, gross, and visual-motor (VM) components and M-FUN participation questionnaires were administered to 267 Israeli children (128 boys, 139 girls; mean age = 59.21 mo, standard deviation = 17.84). RESULTS. Significant correlations supported construct validity between age and all motor and participation scores as well as age-group differences. Significant differences between the U.S. and Israeli samples were found only for the VM score. Participation and motor scores were significantly correlated. CONCLUSION. Although VM score results should be interpreted with caution, we provide evidence for use of the fine and gross motor norms and the U.S. criterion-referenced participation scores of the M-FUN with Israeli children. Copyright © 2014 by the American Occupational Therapy Association, Inc.

  16. Review of The Chicago Guide to Writing about Numbers by Jane E. Miller

    Directory of Open Access Journals (Sweden)

    Neil Lutsky

    2009-01-01

    Full Text Available Miller, J. E. 2004. The Chicago Guide to Writing about Numbers. Chicago, IL: University of Chicago Press. 304 pp. Cloth $45 ISBN: 9780226526300, Softcover $17. ISBN: 9780226526317.The Chicago Guide to Writing about Numbers is a reference work suitable for anyone interested in understanding, using, or promoting quantitative thinking. Its primary aim is to identify and illustrate ways in which information associated with numbers can be conveyed most effectively given a particular communication purpose and context. The book is directed at writers who incorporate numbers in verbal or visual displays in documents, in oral presentations, or on the Web. The Chicago Guide to Writing about Numbers identifies overarching principles, offers concrete advice, and presents illuminating examples and models. The book can be used for instructional purposes for undergraduates, and a means of doing so is described. The review concludes by considering the book’s contributions to a wider call to help citizens write or argue more effectively by using numbers.

  17. Miller-Urey spark-discharge experiments in the deuterium world

    Energy Technology Data Exchange (ETDEWEB)

    Cooper, Geoffrey J.T.; Surman, Andrew J.; McIver, Jim; Colon-Santos, Stephanie M.; Gromski, Piotr S.; Buchwald, Saskia; Suarez Marina, Irene; Cronin, Leroy [WestCHEM, School of Chemistry, University of Glasgow (United Kingdom)

    2017-07-03

    We designed and conducted a series of primordial-soup Miller-Urey style experiments with deuterated gases and reagents to compare the spark-discharge products of a ''deuterated world'' with the standard reaction in the ''hydrogenated world''. While the deuteration of the system has little effect on the distribution of amino acid products, significant differences are seen in other regions of the product-space. Not only do we observe about 120 new species, we also see significant differences in their distribution if the two hydrogen isotope worlds are compared. Several isotopologue matches can be identified in both, but a large proportion of products have no equivalent in the corresponding isotope world with ca. 43 new species in the D world and ca. 39 new species in the H world. This shows that isotopic exchange (the addition of only one neutron) may lead to significant additional complexity in chemical space under otherwise identical reaction conditions. (copyright 2017 The Authors. Published by Wiley-VCH Verlag GmbH and Co. KGaA.)

  18. Amphibians and reptiles of C. E. Miller Ranch and the Sierra Vieja, Chihuahuan Desert, Texas, USA

    Directory of Open Access Journals (Sweden)

    Drew R. Davis

    2018-02-01

    Full Text Available We report the occurrence of 50 species of amphibians and reptiles recently collected on C. E. Miller Ranch and the Sierra Vieja in the Chihuahuan Desert of Texas, USA and describe their perceived distribution and abundance across various habitat associations of the region. Our recent surveys follow intense, historic sampling of amphibians and reptiles from this region in 1948. Of the 50 species detected in recent surveys, six were not collected in 1948 and an additional three species documented in 1948 have yet to be detected in a 14-year period of recent surveys. Combining data from both historic and recent surveys, a total of 53 species of amphibians and reptiles are known from the ranch (11 amphibians, 42 reptiles. Land stewardship and conservation practices have likely contributed to the persistence of the majority of these species through time. Additionally, we discuss the status of amphibians and reptiles not collected during recent surveys and comment on potential species that have not yet been detected.

  19. Amphibians and reptiles of C. E. Miller Ranch and the Sierra Vieja, Chihuahuan Desert, Texas, USA.

    Science.gov (United States)

    Davis, Drew R; LaDuc, Travis J

    2018-01-01

    We report the occurrence of 50 species of amphibians and reptiles recently collected on C. E. Miller Ranch and the Sierra Vieja in the Chihuahuan Desert of Texas, USA and describe their perceived distribution and abundance across various habitat associations of the region. Our recent surveys follow intense, historic sampling of amphibians and reptiles from this region in 1948. Of the 50 species detected in recent surveys, six were not collected in 1948 and an additional three species documented in 1948 have yet to be detected in a 14-year period of recent surveys. Combining data from both historic and recent surveys, a total of 53 species of amphibians and reptiles are known from the ranch (11 amphibians, 42 reptiles). Land stewardship and conservation practices have likely contributed to the persistence of the majority of these species through time. Additionally, we discuss the status of amphibians and reptiles not collected during recent surveys and comment on potential species that have not yet been detected.

  20. O ensaio como narrativa

    Directory of Open Access Journals (Sweden)

    Pedro Duarte

    2016-02-01

    Full Text Available O artigo tenta demonstrar que todos os textos, mesmo aqueles cuja natureza é teórica, têm alguma forma de narrativa. Nem sempre são personagens que os ocupam, podem ser ideias, mas mesmo assim há um enredo conceitual que se passa. Modernamente, a forma dessa narrativa foi sobretudo o sistema, com a pretensão totalizadora presente, por exemplo, na filosofia de Hegel. Contemporaneamente, porém, a forma do ensaio – surgida ainda na era moderna – ganha destaque por sua forma descontínua de narrar. O objetivo do artigo é apontar que, se o ensaio é uma forma, como explicitaram Lukács, Benjamin e Adorno, ele é também uma forma de narrar – ainda que de narrar conceitualmente objetos da cultura.

  1. La Justicia como virtud

    Directory of Open Access Journals (Sweden)

    Martínez-Sicluna y Sepúlveda, Consuelo

    2003-07-01

    Full Text Available El sentimiento de la justicia representa el hábito de conducta por el que nos vemos obligados, en cualquier relación, a dar a cada uno lo suyo. Ahora bien, esta disposición del espíritu se inscribe en las coordenadas que definen al hombre: verdad, libertad y bien. El hombre como ser racional y por tanto libre: el único ser que se determina a sí mismo y que alcanza en el bien el sentido de su proyección personal, esto es, la perfección. Dar a cada uno lo suyo es dar al sujeto el reconocimiento de este fundamento ontológico.

  2. Como comunicar la Alegria

    Directory of Open Access Journals (Sweden)

    Pablo Portales

    2015-01-01

    Full Text Available Se ofrece un amplio análisis sobre la industria electoral, recordando que un candidato a presidente es "un producto para la venta". Se Desmenuzan las estrategias utilizadas en el plebiscito chileno,las elecciones norteamericanas con el NO a BUSH. El Mercadeo Social es una nueva metodología utilizada en proyectos de desarrollo a nivel de campo por ello se hace un esclarecimiento y clarifica el vínculo con la comunicación. Se agrega temas como: Los modelos de recepción de mensajes cuyos marcos conceptuales y metodologías aún no se han adaptado al potencial de esta línea de trabajo.Se analiza la agonía de las radios mineras en Bolivia en la que 42 años de historia y heroísmo se desmoronan.

  3. El inquisidor como profesor

    Directory of Open Access Journals (Sweden)

    Adriano PROSPERI

    2009-12-01

    Full Text Available Giovanni Botero, en una célebre página de su Ragion di stato, se detuvo sobre el tema de la fuerza de la religión en los gobiernos. Esta función de la religión cristiana —para Botero, católica— es garante del orden público y se presenta también como opuesta a la generadora de desorden de Lutero y Calvino, quienes siembran por todo cizañas y revoluciones de estados y ruinas de los reinos. Estamos en los orígenes del esquema historiografía de la periodización de la Edad Moderna que confió precisamente a la Reforma el papel de nodriza de las revoluciones que nacieron en Europa.

  4. The Microcosm within: An interview with William B. Miller, Jr., on the Extended Hologenome theory of evolution.

    Science.gov (United States)

    Hunt, Tam

    2015-01-01

    There is a singular unifying reality underlying every biologic interaction on our planet. In immunology, that which does not kill you makes you different. -William B. Miller, Jr. We are experiencing a revolution in our understanding of inner space on a par with our exponentially increasing understanding of outer space. In biology, we are learning that the genetic and epigenetic complexity within organisms is far deeper than suspected. This is a key theme in William B. Miller Jr.'s book, The Microcosm Within: Evolution and Extinction in the Hologenome. We are learning also that a focus on the human genome alone is misleading when it comes to who we really are as biological entities, and in terms of how we and other creatures have evolved. Rather than being defined by the human genome alone, we are instead defined by the "hologenome," the sum of the human genome and the far larger genetic endowment of the microbiome and symbiotic communities that reside within and around us. Miller is a medical doctor previously in private practice in Pennsylvania and Phoenix, Arizona. This book is his first foray into evolutionary theory. His book could have been titled "The Origin of Variation" because this is his primary focus. He accepts that natural selection plays a role in evolution, but he demotes this mechanism to a less important role than the Modern Synthesis suggests. His main gripe, however, concerns random variation. He argues that random variation is unable to explain the origin and evolution of biological forms that we see in the world around us and in the historical record. Miller suggests that, rather than random variation as the engine of novelty, there is a creative impulse at the heart of cellular life, and even at the level of the genetic aggregate, that generates novelty on a regular basis. I probe this assertion in the interview below. He also highlights the strong role of "exogenous genetic assault" in variation and in his immunological model of evolution.

  5. Direct comparasion of an engine working under Otto, Miller end Diesel cycles : thermodynamic analysis and real engine performance

    OpenAIRE

    Ribeiro, Bernardo Sousa; Martins, Jorge

    2007-01-01

    One of the ways to improve thermodynamic efficiency of Spark Ignition engines is by the optimisation of valve timing and lift and compression ratio. The throttleless engine and the Miller cycle engine are proven concepts for efficiency improvements of such engines. This paper reports on an engine with variable valve timing (VVT) and variable compression ratio (VCR) in order to fulfill such an enhancement of efficiency. Engine load is controlled by the valve opening per...

  6. Prevention of Dental Damage and Improvement of Difficult Intubation Using a Paraglossal Technique With a Straight Miller Blade

    Directory of Open Access Journals (Sweden)

    Yu-Feng Huang

    2010-10-01

    Full Text Available Patients with diseased teeth, or those who are difficult to intubate, have a higher risk of dental injury during laryngoscopy. We report 3 cases of smooth endotracheal intubation using a paraglossal technique with a straight Miller blade in patients with poor dentition. Three patients with poor dentition were scheduled to undergo surgery under general anesthesia. All patients presented with extremely loose upper central incisors and had lost the other right upper teeth, while micrognathia and prominent, loose upper incisors were noted in 1 case. We elected to use a straight Miller blade using a paraglossal approach. A nasopharyngeal airway was inserted after induction of general anesthesia to facilitate mask ventilation and prevent air leakage from the mask. The Miller blade was then inserted from the right corner of the mouth, avoiding contact with the vulnerable incisors, and advanced along the groove between the tongue and tonsil. The endotracheal tube was subsequently smoothly inserted after obtaining a grade 1 Cormack and Lehane view without dental trauma in all 3 cases. Direct laryngoscopy using the paraglossal straight blade technique avoids dental damage in patients with mobile upper incisors and no right maxillary molars. It is a practical alternative method that differs from the traditional Macintosh laryngoscope in patients with a high risk of dental injury during the procedure. This technique, which provides an improved view of the larynx, might also be helpful with patients in whom intubation is difficult.

  7. Review of David Abrahamson and Marcia R. Prior-Miller (eds, The Routledge Handbook of Magazine Research: The Future of the Magazine Form (2015

    Directory of Open Access Journals (Sweden)

    Maaike Koffeman

    2016-07-01

    Full Text Available David Abrahamson and Marcia R. Prior-Miller (eds, The Routledge Handbook of Magazine Research: The Future of the Magazine Form (New York: Routledge, 2015. 650 pp. ISBN 978-1138854161.

  8. Guillain-Barré syndrome- and Miller Fisher syndrome-associated Campylobacter jejuni lipopolysaccharides induce anti-GM1 and anti-GQ1b Antibodies in rabbits.

    NARCIS (Netherlands)

    M.A. de Klerk; H.P. Endtz (Hubert); B.C. Jacobs (Bart); J.D. Laman (Jon); F.G.A. van der Meché (Frans); P.A. van Doorn (Pieter); C.W. Ang (Wim)

    2001-01-01

    textabstractCampylobacter jejuni infections are thought to induce antiganglioside antibodies in patients with Guillain-Barre syndrome (GBS) and Miller Fisher syndrome (MFS) by molecular mimicry between C. jejuni lipopolysaccharides (LPS) and gangliosides. We used

  9. WATER TEMPERATURE and other data from NOAA Ship MILLER FREEMAN and NOAA Ship CHAPMAN from 1990-02-14 to 1990-06-27 (NODC Accession 9200046)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The depth data in this accession was collected as part of South Atlantic Ventilation Experiment (SAVE). The cruises were conducted using NOAA Ship MILLER FREEMAN and...

  10. Thermodynamic performance analysis and optimization of DMC (Dual Miller Cycle) cogeneration system by considering exergetic performance coefficient and total exergy output criteria

    International Nuclear Information System (INIS)

    Ust, Yasin; Arslan, Feyyaz; Ozsari, Ibrahim; Cakir, Mehmet

    2015-01-01

    Miller cycle engines are one of the popular engine concepts that are available for improving performance, reducing fuel consumption and NO x emissions. There are many research studies that investigated the modification of existing conventional engines for operation on a Miller cycle. In this context, a comparative performance analysis and optimization based on exergetic performance criterion, total exergy output and exergy efficiency has been carried out for an irreversible Dual–Miller Cycle cogeneration system having finite-rate of heat transfer, heat leak and internal irreversibilities. The EPC (Exergetic Performance Coefficient) criterion defined as the ratio of total exergy output to the loss rate of availability. Performance analysis has been also extended to the Otto–Miller and Diesel-Miller cogeneration cycles which may be considered as two special cases of the Dual–Miller cycle. The effect of the design parameters such as compression ratio, pressure ratio, cut-off ratio, Miller cycle ratio, heat consumer temperature ratio, allocation ratio and the ratio of power to heat consumed have also been investigated. The results obtained from this paper will provide guidance for the design of Dual–Miller Cycle cogeneration system and can be used for selection of optimal design parameters. - Highlights: • A thermodynamic performance estimation tool for DM cogeneration cycle is presented. • Using the model two special cases OM and dM cogeneration cycles can be analyzed. • The effects of r M , ψ, χ 2 and R have been investigated. • The results evaluate exergy output and environmental aspects together.

  11. La persona como creatura

    Directory of Open Access Journals (Sweden)

    Emmanuel Housset

    2010-01-01

    Full Text Available El artículo de Emmanuel Housset implica un esfuerzo de rehabilitación del concepto «persona» para la filosofía contemporánea y la fenomenología. Para ello el autor busca mostrar cómo poco a poco «persona» tomó otra significación que la de «personaje» o sujeto de derecho. Es en autores como san Agustín y santo Tomás de Aquino que se halla un acceso diferente que pone el énfasis más bien en su carácter relacional y responsivo de la persona, antes que en su dimensión autónoma y autotélica. Tal dimensión aparece, según Housset, junto con la idea de persona como creatura y en oposición a la de individuo racional dueño de sí. La dimensión afectiva, la personalidad despertada por las diversas figuras de la alteridad son algunas de las dimensiones de la persona que examina el autor a partir del examen de la carne, las pasiones, la memoria, la historicidad y el amor alteridad.Emmanuel Housset's paper is an effort to revitalize the concept of 'person' for contemporary philosophy and phenomenology To this end the author looks to show how little by little the understanding of 'person' took on a different meaning to that of 'character' or "right bearing individual". It is in authors such as St. Augustine and St. Thomas Aquinas that a different approach is found, one that puts emphasis on the relational and responsive character of a person, rather than on the autonomous and auto telic dimension. According to Housset, such a dimension appears together with the idea of the person as a creation, and in opposition to the idea of the rational individual, that is his own master. The emotional dimension and the personality that is awoken by the many figures of alterity are some of the dimensions of the person that the author analyzes, based on examining the flesh, passions, memory historicity and love.

  12. Performance analysis of a Miller cycle engine by an indirect analysis method with sparking and knock in consideration

    International Nuclear Information System (INIS)

    Wang, Yuanfeng; Zu, Bingfeng; Xu, Yuliang; Wang, Zhen; Liu, Jie

    2016-01-01

    Highlights: • A quasi-dimensional model was adopted to study Miller cycle engine’s performance. • A new indirect performance analysis method was proposed. • The definition of effective compression ratio was modified. • The modified effective compression ratio takes the trapped mixture mass in account. • The factors limiting the fuel economy in Miller cycle engine were found out. - Abstract: In this paper, a full-factorial design of experiment was applied to thoroughly investigate the effects of compression ratio, intake valve closing retardation angle, and engine speed on the fuel consumption performance and power performance of the Miller cycle engine based on a quasi-dimensional simulation model. A new indirect analysis method based on formula derivation and main effect analysis was proposed to simplify the complex relationship between the design factors and the performance parameters. The definition of effective compression ratio was modified to take account of the actual mass of mixture trapped in the cylinder. The results show that the distributions of brake mean effective pressure and brake specific fuel consumption can be regarded as the re-organization results from the distributions of volumetric efficiency and indicated efficiency. The intake valve closing retardation angle has a strong negative correlation with volumetric efficiency. The modified effective compression ratio is the approximate product of the compression ratio and the volumetric efficiency, and makes obvious effects on the distribution of the indicated efficiency. Therefore the combustion process is co-evolved with the intake process in a Miller cycle engine. The further improvement of brake specific fuel consumption is mainly limited by four factors, i.e., the back flow loss, the exergy loss, the incomplete expansion loss, and the combustion loss. The improvement of fuel consumption performance is at a cost of power performance, and the trade-off between the both essentially

  13. Chemical composition and antibacterial activity of Pinus halepensis Miller growing in West Northern of Algeria

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    Nadia Fekih

    2014-04-01

    Full Text Available Objective: To find new bioactive natural products, the chemical composition and to sudy the antibacterial activity of essential oil components extracted from the aerial parts of the Algerian aromatic plant Pinus halepensis Miller (P. halepensis (needles, twigs and buds. Methods: The essential oil used in this study was isolated by hydrodistillation using a Clevenger-type apparatus according to the European Pharmacopoeia. The chemical composition was investigated using GC-retention indices (RI and GC-MS. Results: Forty-nine compounds, representing 97.9% of the total collective oil, were identified. Essential oil was dominated by hydrocarbon compounds (80.6% especially monoterpenes (65.5%. The major compounds from ten oils stations were: myrcene (15.2%-32.0%, α-pinene (12.2%- 24.5%, E-β-caryophyllene (7.0%-17.1%, terpinolene (1.8%-13.3%, 2-phenyl ethyl isovalerate (4.8%-10.9%, terpinene-4-ol (1.0%-8.2 % and sabinene (1.5%-6.3%. The intra-species variations of the chemical compositions of P. halepensis aerial parts essential oils from ten Algerian sample locations were investigated using statistical analysis. Essential oil samples were clustered in 2 groups by hierarchical cluster analysis, according to their chemical composition. The essential oil revealed an interesting antimicrobial effect against Lysteria monocytogenes, Enterococcus faecalis, Pseudomonas aeruginosa, Acinetobacter baumanii, Citrobacter freundii and Klebsiella pneumoniae. Conclusions: These results suggest that the essential oil from P. halepensis may be a new potential source as natural antimicrobial applied in pharmaceutical and food industries.

  14. Chemical composition and antibacterial activity of Pinus halepensis Miller growing in West Northern of Algeria

    Science.gov (United States)

    Fekih, Nadia; Allali, Hocine; Merghache, Salima; Chaïb, Faïza; Merghache, Djamila; El Amine, Mohamed; Djabou, Nassim; Muselli, Alain; Tabti, Boufeldja; Costa, Jean

    2014-01-01

    Objective To find new bioactive natural products, the chemical composition and to sudy the antibacterial activity of essential oil components extracted from the aerial parts of the Algerian aromatic plant Pinus halepensis Miller (P. halepensis) (needles, twigs and buds). Methods The essential oil used in this study was isolated by hydrodistillation using a Clevenger-type apparatus according to the European Pharmacopoeia. The chemical composition was investigated using GC-retention indices (RI) and GC-MS. Results Forty-nine compounds, representing 97.9% of the total collective oil, were identified. Essential oil was dominated by hydrocarbon compounds (80.6%) especially monoterpenes (65.5%). The major compounds from ten oils stations were: myrcene (15.2%-32.0%), α-pinene (12.2%-24.5%), E-β-caryophyllene (7.0%-17.1%), terpinolene (1.8%-13.3%), 2-phenyl ethyl isovalerate (4.8%-10.9%), terpinene-4-ol (1.0%-8.2 %) and sabinene (1.5%-6.3%). The intra-species variations of the chemical compositions of P. halepensis aerial parts essential oils from ten Algerian sample locations were investigated using statistical analysis. Essential oil samples were clustered in 2 groups by hierarchical cluster analysis, according to their chemical composition. The essential oil revealed an interesting antimicrobial effect against Lysteria monocytogenes, Enterococcus faecalis, Pseudomonas aeruginosa, Acinetobacter baumanii, Citrobacter freundii and Klebsiella pneumoniae. Conclusions These results suggest that the essential oil from P. halepensis may be a new potential source as natural antimicrobial applied in pharmaceutical and food industries.

  15. Unripe Fruit's Extract of Quince (Cydonia oblonga Miller as a Potent Alpha-amylase Inhibitor

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    Mostafa Koutb

    2012-01-01

    Full Text Available The use of alpha-amylase inhibitors has recently gained in popularity with the success and growth of carbohydrate restricted diets. In this study, two different stages from the unripe fruits of quince (Cydonia oblonga Miller have been tested for their potentiality in alpha-amylase inhibition as a key enzyme in carbohydrates assimilation. Our results revealed that addition of different concentrations from extracts (0, 2, 4, 6, 8mg of dry mass of each stage of unripe fruits resulted in drastically decrease in the enzymatic activity of alpha-amylase by the percent of (0%, 42.6%, 21%, 26.3%, and 16.9% for the stage 1. Extracts from the stage 2 were more effective in enzymatic inhibition (0%, 26.9%, 3.8%, 0.2%, and 0.4%. The GC/MS analysis revealed that quince extract contains (sorbitol, quinic acid, p-vinylphenol and cyclopropane carboxylic acid. To explore which components are involved in the inhibition process, two pure components of the quince extract (sorbitol and quinic acid were used in inhibition assay. Neither sorbitol nor quinic acid shows any significant inhibition; therefore, these two components could be excluded from the inhibition process. Our current study suggested that p-vinylphenol and cyclopropane carboxylic acid might act as a-amylase inhibitors in vitro separately or synergistically. The possible explanation for the presence of cyclopropane carboxylic acid (CPCA in this critical phase of the unripe fruit will be discussed. This study suggests that the unripe fruits of quince can be used as a natural starch blocker containing alpha-amylase inhibitors which would be of interest for people requiring carbohydrate restricted diets.

  16. In search of integrated specificity: comment on Denson, Spanovic, and Miller (2009).

    Science.gov (United States)

    Miller, Gregory E

    2009-11-01

    Psychologists have long been interested in the integrated specificity hypothesis, which maintains that stressors elicit fairly distinct behavioral, emotional, and biological responses that are molded by selective pressures to meet specific demands from the environment. This issue of Psychological Bulletin features a meta-analytic review of the evidence for this proposition by T. F. Denson, M. Spanovic, and N. Miller. Their review concluded that the meta-analytic findings support the "core concept behind the integrated specificity model" (p. 845) and reveal that "within the context of a stressful event, organisms produce an integrated and coordinated response at multiple levels (i.e., cognitive, emotional, physiological)" (p. 845). I argue that conclusions such as this are unwarranted, given the data. Aside from some effects for cortisol, little evidence of specificity was presented, and most of the significant findings reported would be expected by chance alone. I also contend that Denson et al. failed to consider some important sources of evidence bearing on the specificity hypothesis, particularly how appraisals and emotions couple with autonomic nervous system endpoints and functional indices of immune response. If selective pressures did give rise to an integrated stress response, such pathways almost certainly would have been involved. By omitting such outcomes from the meta-analysis, Denson et al. overlooked what are probably the most definitive tests of the specificity hypothesis. As a result, the field is back where it started: with a lot of affection for the concept of integrated specificity but little in the way of definitive evidence to refute or accept it.

  17. El signo como emblema

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    Sáez, Carlos

    2003-06-01

    Full Text Available The aim of this article is to study the signs and symbols that appear in the hispanic medieval documents and manuscripts. These signs and symbols have usually been considered simply as mere elements to validate the charters. However, these alements were useful as a mean of visual communication between the high classes, able to generate charters, and the rest of medieval society—the majority illiterate— who received those charters. Because of their inability of understand an alphabetical code, they needed the graphic help to comprehend the message. Besides this, the article deals with non diplomatic signs and their function.

    Este artículo se centra en los signos o símbolos presentes en los documentos y manuscritos medievales hispanos, que habitualmente han sido tratados como meros elementos de validación de los diplomas. Pero estos elementos servían también de nexos de comunicación visual entre las clases poderosas, capaces de producir escritos, y los demás miembros de la sociedad medieval, receptores y destinatarios de tales escritos, en su mayoría analfabetos. Precisamente por esta razón, su incapacidad de descifrar un código alfabético, necesitan de auxilio gráfico para acercarse a la comprensión del mensaje. Asimismo, tratamos de los signos no diplomáticos y de su función.

  18. O analista como testemunha

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    Jô Gondar

    2016-04-01

    Full Text Available Resumo A proposta deste artigo é pensar o lugar da testemunha como um lugar terceiro que o analista, na clínica do traumático, é capaz de sustentar. Nos sonhos traumáticos, segundo Ferenczi, já existe a convocação de um terceiro. Não se trata da testemunha da esfera do Direito, tampouco do lugar do pai ou da Lei simbólica. Trata-se de um terceiro espaço que pode ser chamado de potencial, espaço intersticial, indeterminado e informe no qual circula - e aos poucos ganha forma -, algo que a princípio seria incomunicável. Esse espaço permite e suporta a literalidade da narrativa testemunhal, seus titubeios, paradoxos e silêncios. Mais do que uma teoria do trauma, a noção de espaço potencial seria a grande contribuição da psicanálise às pesquisas teóricas e clínicas com sobreviventes de campos de extermínio, de situações de tortura e de violência.

  19. Arte como espelho

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    Pedro Süssekind

    2016-12-01

    Full Text Available Este artigo tem como ponto de partida o exemplo da relação espelhada entre um livro e uma pintura de mesmo nome: o retrato que Lucian Freud fez do crítico de arte Martin Gayford e o diário que esse crítico escreveu sobre seu retratista, ambas as obras chamadas Homem com cachecol azul. A partir do exemplo, discuto a metáfora do espelho para caracterizar a arte, recorrendo para isso à teoria da representação artísticas elaborada pelo filósofo norte-americano Arthur Danto no artigo “O mundo da arte”, de 1964, e no primeiro capítulo do livro A transfiguração do lugar-comum, de 1981. Recorro, por fim, a dois exemplos artísticos de espelhamento na representação analisados por Danto em O abuso da beleza, de 2003, um quadro holandês do século dezessete e um poema de Rainer Maria Rilke.

  20. El riesgo como oportunidad

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    Daniela Gargantini

    2003-01-01

    Full Text Available Durante los últimos años el crecimiento mundial de catástrofes naturales ha ido en franco aumento. Sin embargo, desde un enfoque sistémico puede verificarse que la gran mayoría de los desastres se origina en los países en desarrollo (entre ellos los latinoamericanos, siendo las pérdidas en ellos significativamente más altas que en los países industrializados. Bajo esta postura los desastres no son sólo naturales sino socio- naturales, enfatizando la estrecha relación de causalidad entre modelos de desarrollo y urbanización y procesos de generación de riesgos, al incrementar la vulnerabilidad de los sectores más desprotegidos. El desastre pone en evidencia así una situación (la pobreza y segregación urbana ya existente, pero no considerada hasta el momento de la catástrofe. Frente a este panorama el desastre aparece como oportunidad que precipita tres catalizadores de políticas habitacionales: tierra, asistencia técnica y financiamiento, incrementando la celeridad y la creatividad de las respuestas. El interrogante que surge es por qué esperar el desastre para ponerlos en marcha, cuando ninguno de ellos es estrictamente dependiente de la situación de riesgo, sino sujeto de luchas de poder.

  1. Endomarketing: como diferencial competitivo

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    Karin Birck

    2013-05-01

    Full Text Available Atualmente, com a profissionalização das empresas e com a grande concorrência no mercado, observa-se uma demanda cada vez maior de gestores comprometidos com o bem-estar pessoal e profissional de seus colaboradores. E, com esse intuito, de apresentar algumas idéias básicas de gestão voltadas à aplicação nas mais diversas técnicas de Endomarketing. Demonstra assim, a importância da utilização de feedback, tanto por parte dos colaboradores quanto dos gestores, destacando a importância de trabalhos de motivação, do clima organizacional favorável e de uma comunicação interna eficaz e a necessidade ímpar de tratar o colaborador como o diferencial dentro de uma empresa. Desta forma, foi realizada uma pesquisa bibliográfica que auxiliará e dará subsídios que lhe permitam retribuir em ações e atitudes de sucesso e, também, fazer um confronto de idéias, onde os autores apresentam suas mais diversas opiniões. Contudo, valendo-se, muitas vezes, de narrativas de experiências de outros gestores e até mesmo de suas próprias, tirando cada um suas próprias conclusões.

  2. Ouabaina como Hormona

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    J. Hernando Ordoñez

    1996-04-01

    Full Text Available

    Comentario sobre su origen endógeno y sus aplicaciones terapéuticas

    Pocas drogas han sido más estudiadas que el grupo de los digitálicos, estrofantinas y ouabaina, cuyo estudio es objeto del presente trabajo.

    La ouabaina empezó a ser estudiada desde el siglo pasado. La primera referencia conocida corresponde a Pelikan, 1865 (1, como veneno que empleaban para las flechas en Gabón (Africa. (.

    (. Vinieron luego los trabajos de Fraser, 1869, (2, 3, 6, Polaillon, 1871 (4, Amaud, 1888 (5, Vaquez y Lutembacher, 1917 (7, Stoll, 1939 (8, Lapicque, 1929 (9, Wiggers, 1927 (10, Ytantos otros (11, 12, 13. En la obra de Kisch (14 aparecen más de 700 referencias bibliográficas sobre el particular.

    Ouabaina de origen endógeno. Purificación
    Durante muchos años se conoció la ouabaina como de origen vegetal, elaborada por las plantas Strophanthus Glaber(k-estrofantina,AcocantheraOuabaio(Ouabaina yStrophanthus Kombe (k-estrofantina y kestrofantósido. Una propiedad común a todos los digitálicos, estrofantina y ouabaina es que todos son inhibidores de la bomba de Na-K, encargada de regular la salida de Na y la entrada de K celular.

    Estudiando los inhibido res de esta bomba han encontrado en años recientes resultados extraordinarios en relación con el origen endógeno de algunos de estos inhibidores, entre ellos la ouabaina. Por considerarlos de extrema importancia y actualidad científica me permito citar algunos de ellos. Hamlyn y Manunta (15, 16, 17, 18, Y 19 hicieron estudios sobre el particular y lograron identificar en el plasma humano un compuesto igual a la ouabaina. Estos hallazgos fueron confirmados después por otros autores (20, 21, 22, 23 Y24.

    Ham bl yn (19 da varios argumentos que ponen en evidencia que el compuesto químico encontrado es ouabaina pura, y, lo que es más interesante, que tiene un origen endógeno. a Por espectroscopia de alta resoluci

  3. O direito como imperativo

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    Cloter Miglioriani

    1988-08-01

    Full Text Available We have examined one of the facets which Law presents to society, looking at the theme through a brief history of Law, in which Roman Law stands out, up to modem times, comparing current juridical systems such as the Continental System, Common Law, and Soviet Law. We have looked at Law from the viewpoint of society 's need to have basic mies for living together, with the juridical ruZe being one of the most important. We have highlighted the views of Hart and Kelsen on the foundations of the validity of Law. We have also considered the obligatoriness of Law; giving the point of view of tadbruch who, explaining his ''Theory of the Obligatoriness of Law ", concluded that the obligatoriness of Law can only be withdraw when there is a Clash between morals, law, use and social conventions. We have looked at the notion of the imperativeness of Law the central theme of the work -drawing on the views of Miguel Reale, for whom the juridical nonn cannot be reduced to a "command of a volitional nature", but rather the obligatory character of the juridical nonn arises from the pressure of social values. Del Vecchio, who is also quoted, recognized that imperativeness exists in the juridical norm, whether it is preceptive (a positive command or permissive. Also mentioned is the opinion of Tercio Sampaio Ferraz, for whom the juridical norm has imperativeness to the extent that the imposition of behaviour is unconditionally guaranteed. Foi feita a abordagem de uma das facetas com que o Direito se apresenta à sociedade, enfocando o tema a partir de um brevíssimo histórico do Direito, onde revela a fase romana, até os períodos modernos, com comparações dos sistemas jurídicos hodiernos, como o sistema continental, o da Commum Law e o soviético. Foi enfocado o Direito em face da necessidade sociedade em ter básicas de convivência, despontando a regra jurídica como das mais importantes. Foi dado destaque às posições de Hart e Kelsen, sobre os

  4. Europa como cultura

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    Javier San Martín

    2012-02-01

    Full Text Available El presente texto tiene un origen muy concreto. El día 15 de marzo de 2002, con motivo de la Cumbre Europea de Barcelona, Jorge Semprún reflexionaba, en las páginas de un conocido diario madrileño, sobre el significado que para él tenía ser europeo. Para ello emprendía tres "viajes intelectuales" a Viena, Praga y Buchenwald, los tres de gran significado histórico y cultural. Dado el interés del texto y del momento, me pareció entonces oportuno glosar algunos aspectos de aquel artículo, primero, para subrayar el valor de la aportación de Semprún, luego para corregir alguna inexactitud de carácter biográfico, debida posiblemente a la rapidez de la traducción, y, tercero, para ampliar con algún comentario la valiosa contribución de Sempnín, sobre todo en lo que concierne al sentido de Europa. En este texto se toma aquel comentario como punto de partida.The origins of this text are very specific. On 15 March 2002, on the occasion of the European Summit in Barcelona, and on the pages of a well-known Madrid newspaper, Jorge Semprún reflected on the meaning that being European had for him. To do this, he embarked on three "intellectual journeys" to Vienna, Prague and Buchenwald, all three of great historical and cultural significance. Given the interest of the text and of the moment, I considered it appropriate to comment on aspects of the article -firstly, to underline the value of Semprún's contribution; secondly, to correct certain biographical inaccuracies, possibly due to a hasty translation; and thirdly, to complement Semprún's valuable contribution, essentially concerning the meaning of Europe. This text takes that comment as its starting point.

  5. Bookshelf (Early Quantum Electrodynamics - A Source Book, by Arthur I. Miller)

    International Nuclear Information System (INIS)

    Anon.

    1994-01-01

    Many people these days would say that quantum electrodynamics, the quantum picture of electromagnetic radiation, dates from 1947-8 with the work of Sin-itoro Tomonaga, Julian Schwinger and Richard Feynman. However this was the modern reformulation of a theory whose genesis was Paul Dirac's 1927 work on the quantization of radiation and was subsequently, and painfully, pieced together in the 1930s. Until the Second World War, the science of quantum electrodynamics advanced steadily, driven for the most part by the intellects which had produced modern quantum mechanics - notably Dirac, Heisenberg and Pauli. After Dirac's 1928 relativistic theory of the electron, Heisenberg and Pauli went on to cast an initial quantum formalism for the interaction between radiation and electrons. During this time many intellectual hurdles had to be crossed - the negative energy states predicted by Dirac's equation and their final identification as antimatter electrons (positrons), the whole problem of explaining quantum force mechanisms as particle exchanges, Fermi's explanation of beta decay, and Yukawa's explanation of the nuclear force. Heisenberg's invention of the S-matrix and his ideas on the transmission of nuclear forces through exchange mechanisms revolutionized both our picture of the quantum world. These problems were not easy - several times during the 1920s even these intellects almost despaired. A shadow across the subject was the continual problem of troublesome infinities in mass terms and elsewhere. It was not until the ordered renormalization recipes of the immediate post-war period that these infinities were finally hidden from sight. Science historian Arthur Miller traces these developments in the first half of the book, and signals how these early developments were eventually to dovetail with the exciting new developments of the late 1940s. Supplementing the survey are eleven fascinating landmark papers by Heisenberg, Dirac, Weisskopf

  6. Effect of turbo charging and steam injection methods on the performance of a Miller cycle diesel engine (MCDE)

    International Nuclear Information System (INIS)

    Gonca, Guven; Sahin, Bahri

    2017-01-01

    Highlights: • Performance of a diesel engine is simulated by finite time thermodynamics. • Effect of steam injection on performance of a Miller cycle engine is examined. • Model results are verified with the experimental data with less than 7% error. - Abstract: In this study, application of the steam injection method (SIM), Miller cycle (MC) and turbo charging (TC) techniques into a four stroke, direct-injection diesel engine has been numerically and empirically conducted. NOx emissions have detrimental influences on the environment and living beings. They are formed at the high temperatures, thus the Diesel engines are serious NOx generation sources since they have higher compression ratios and higher combustion temperatures. The international regulations have decreased the emission limits due to environmental reasons. The Miller cycle (MC) application and steam injection method (SIM) have been popular to abate NOx produced from the internal combustion engines (ICEs), in the recent years. However, the MC application can cause a reduction in power output. The most known technique which maximizes the engine power and abates exhaust emissions is TC. Therefore, if these three techniques are combined, the power loss can be tolerated and pollutant emissions can be minimized. While the application of the MC and SIM causes to diminish in the brake power and brake thermal efficiency of the engine up to 6.5% and 10%, the TC increases the brake power and brake thermal efficiency of the engine up to 18% and 12%. The experimental and theoretical results have been compared in terms of the torque, the specific fuel consumption (SFC), the brake power and the brake thermal efficiency. The results acquired from theoretical modeling have been validated with empirical data with less than 7% maximum error. The results showed that developed combination can increase the engine performance and the method can be easily applied to the Diesel engines.

  7. Steven E. Miller and Dmitri V. Trenin, eds., The Russian Military: Power and Policy, Cambridge, MA: MIT Press, 2004.

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    Mikhail Tsypkin

    2005-10-01

    Full Text Available The Russian military largely went below the radar of Western interest after the disintegration of the Soviet Union.  More than a decade after the creation of the Armed Forces of the Russian Federation, they have become again the object of interest for scholars – this time, both Western and Russian, as demonstrated by the reviewed volume, whose editors assembled a group of extraordinarily knowledgeable experts from Russia and the West.  In his introduction, Steven Miller explains that the purp...

  8. Los costos de la desinflación en Colombia según el modelo Buiter-Miller

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    Ramírez Vigoya Alejandro

    2005-12-01

    Full Text Available En este artículo analizamos los costos del proceso desinflacionario colombiano entre 1998 y 2003, utilizamos un modelo VAR estructural con restricciones de corto y largo plazo basado en el modelo Buiter-Miller (1982, el cual analiza los efectos de una desaceleración del crecimiento monetario sobre la tasa de interés real, la tasa de cambio real, la producción y los precios. Por medio de la contabilidad de innovaciones concluimos que los choques de la tasa de interés real y del crecimiento de la base monetaria fueron los principales causantes de la desinflación.

  9. El CO2 como disolvente y como reactivo

    OpenAIRE

    La Franca Pitarresi, Vincenzo Rosario

    2016-01-01

    Existen numerosas ventajas asociada con el uso de CO2 , tanto como disolvente que como reactivo, y todas se pueden resumir en cuatro categorías generales: beneficios ambiental, beneficios de salud y seguridad, beneficios en el procedimiento y beneficios químicos. Los procesos que implican el CO2 como disolvente no aumentaría las emisiones de CO2, más bien proporcionaría una oportunidad para el reciclaje de CO2 residual. Además, los esfuerzos para secuestrar el CO2 producido de los gases de co...

  10. Evaluación clínica abierta multicéntrica no aleatorizada y prospectiva de la efectividad de una emulsión a base de ácidos grasos hiperoxigenados, Aloe barbadensis y Mimosa tenuiflora (Mepentol® Leche en diferentes tipos de pacientes con riesgo de ulceración Multicentric prospective non randomized open clinical evaluation of the efficacy of an emulsion based on hyperoxigenated fatty acids Aloe barbadensis and Mimosa tenuiflora (Mepentol® Leche in different types of patients with risk of ulceration

    Directory of Open Access Journals (Sweden)

    José Puentes Sánchez

    2012-09-01

    Full Text Available Las úlceras de la extremidad inferior suponen un grave problema sanitario que afecta a un gran número de pacientes, constituyendo por ello un gran reto de trabajo para los profesionales de la salud. Los ácidos grasos hiperoxigenados (AGHO han demostrado tener eficacia en la prevención de este tipo de úlceras. Gracias a los buenos resultados obtenidos en un estudio previo, nos planteamos seguir evaluando la efectividad del producto Mepentol® Leche, una emulsión a base de ácidos grasos hiperoxigenados, Aloe barbadensis y Mimosa tenuiflora, en el cuidado de la piel y alivio de los síntomas en pacientes con este problema, pero ampliando el tamaño de la muestra y centrándonos en pacientes diabéticos junto con otras enfermedades concomitantes. Además, en este estudio se ha implicado a profesionales de enfermería de seis provincias: Almería, Alicante, Granada, Sevilla, Málaga y Ceuta. De nuevo con este estudio, realizado en un total de 2.145 pacientes, hemos demostrado que ningún paciente ha ulcerado durante el tiempo de seguimiento y tratamiento con Mepentol® Leche y que su aplicación sistemática mejora claramente los síntomas previos a la aparición de úlceras, evitando la sequedad cutánea, reduciendo el prurito, escozor, dolor y eccema, y devolviendo la piel de estos pacientes a su coloración normal.The lower extremity wounds are a serious health problem that affects a large number of patients, thereby assuming a great challenge to work for health professionals. Hyperoxygenated fatty acids (AGHO, have demonstrated efficacy in the prevention of this type of ulcers. Thanks to the good results obtained in a previous study, we plan to continue evaluating the effectiveness of Mepentol® Leche, an emulsion-based hyper-oxygenated fatty acids, Aloe barbadensis and Mimosa tenuiflora in skin care and relief of symptoms, in patients with this problem, but expanding the sample size and focusing on diabetic patients with concomitant

  11. EFSA NDA Panel (EFSA Panel on Dietetic Products, Nutrition and Allergies), 2013. Scientific Opinion on the substantiation of a health claim related to hydroxyanthracene derivatives and improvement of bowel function pursuant to Article 13(5) of Regulation (EC) No 1924/2006

    DEFF Research Database (Denmark)

    Tetens, Inge

    of Rhamnus purshianus D.C. and from Aloe barbadensis Miller and/or various aloe species, mainly Aloe ferox Miller and its hybrids on the short-term alleviation of occasional constipation is well established. The Panel concludes that a cause and effect relationship has been established between consumption...

  12. Primordial Synthesis of Amines and Amino Acids in a 1958 Miller H2S-Rich Spark Discharge Experiment

    Science.gov (United States)

    Parker, Eric T.; Cleaves, Henderson J.; Dworkin, Jason P.; Glavin, Daniel P.; Callahan, Michael; Aubrey, Andrew; Lazcano, Antonio; Bada, Jeffrey L.

    2011-01-01

    Archived samples from a previously unreported 1958 Stanley Miller electric discharge experiment containing hydrogen sulfide (H2S) were recently discovered and analyzed using high-performance liquid chromatography and time-of-flight mass spectrometry. We report here the detection and quantification of primary amine-containing compounds in the original sample residues, which were produced via spark discharge using a gaseous mixture of H2S, CH4, NH3, and CO2. A total of 23 amino acids and 4 amines, including 7 organosulfur compounds, were detected in these samples. The major amino acids with chiral centers are racemic within the accuracy of the measurements, indicating that they are not contaminants introduced during sample storage. This experiment marks the first synthesis of sulfur amino acids from spark discharge experiments designed to imitate primordia! environments. The relative yield of some amino acids, in particular the isomers of aminobutyric acid, are the highest ever found in a spark discharge experiment. The simulated primordial conditions used by Miller may serve as a model for early volcanic plume chemistry and provide insight to the possible roles such plumes may have played in abiotic organic synthesis. Additionally, the overall abundances of the synthesized amino acids in the presence of H2S are very similar to the abundances found in some carbonaceous meteorites, suggesting that H2S may have played an important role in prebiotic reactions in early solar system environments.

  13. CERN Library | Arthur I. Miller presents "Colliding worlds: How Cutting-Edge Science Is Redefining Contemporary Art" | 21 October

    CERN Multimedia

    2014-01-01

    In recent decades, an exciting new art movement has emerged in which artists illuminate the latest advances in science.   Some of their provocative creations - a live rabbit implanted with the fluorescent gene of a jellyfish, a gigantic glass-and-chrome sculpture of the Big Bang itself - can be seen in traditional art museums and magazines, while others are being made by leading designers at Pixar, Google's Creative Lab and the MIT Media Lab. Arthur I. Miller takes readers on a wild journey to explore this new frontier. From the movement's origins a century ago - when Einstein shaped Cubism and X-rays affected fine photography - to the latest discoveries of biotechnology, cosmology and quantum physics, Miller shows how today's artists and designers are producing work at the cutting edge of science. Tuesday, 21 October 2014 at 14:30 in the Library, Bldg. 52 1-052 https://indico.cern.ch/event/346299/ *Coffee will be served from 2 p.m.* "Colliding Worlds: How Cutt...

  14. An Optimization Study on an Eco-Friendly Engine Cycle Named as Dual-Miller Cycle (DMC for Marine Vehicles

    Directory of Open Access Journals (Sweden)

    Gonca Guven

    2017-09-01

    Full Text Available The diesel engine is an indispensable part of technology and it is commonly used in land and marine vehicles. However, diesel engines release NOx emissions due to high combustion temperatures. They have harmful effects on the environment such as sources of photo-chemical fog and climate changes. Therefore, they must be reduced and limited. The Miller cycle application is a NOx control method and it is popular in the recent years to abate NOx produced from the internal combustion engines (ICEs. A performance investigation of a Dual-Miller cycle (DMC engine in terms of power (PO, power density (PD and effective efficiency (EE has been performed using a new finite-time thermodynamics modeling (FTTM in this study. The effects of engine design and operating parameters on the engine performance (EPER have been examined. Additionally, the energy losses have been determined resulting from incomplete combustion (IC, friction (FR, heat transfer (HT and exhaust output (EO. The results presented could be an essential tool for DMC marine engine designers.

  15. Comparative evaluation of platelet-rich fibrin with connective tissue grafts in the treatment of miller's Class I gingival recessions

    Directory of Open Access Journals (Sweden)

    Sonam Mufti

    2017-01-01

    Full Text Available Background: One of the most common aesthetic problem encountered in the field of periodontology is gingival recession, which is, perceived by the patients as increase in length of teeth. The treatment of buccal gingival recession is a common requirement due to aesthetic concern or root sensitivity. This study was planned to evaluate the efficacy of PRF membrane compared to that of CTG in Miller's class I gingival recessions. Materials and Methods: 32 sites with Miller's Class I gingival recessions, out of which 16 sites received PRF (test and 16 sites received CTG (control. Each patient had undergone an initial periodontal treatment, including oral hygiene instructions, plaque control, and scaling and root planing, followed by re-evaluation. All clinical recordings; recession height, recession width, clinical attachment level, height of keratinized tissue, thickness of keratinized tissue, healing index and pain perception, were performed immediately before surgery (baseline and after 6 months interval following periodontal surgery. Results: In the test group, significant improvement was seen in terms CAL, REC-HT, REC-WD, HKT and TKT from baseline to 6 months. In the control group, only significant improvement seen was in REC-HT and TKT from baseline to 6 months. Comparison of both Healing Index and VAS score was done and it showed no significant difference between test and the control group except VAS at 1 week. Conclusion: Though CTG is a gold standard procedure, PRF can be used as an alternative procedure by keeping patient's comfort and recognition in mind.

  16. ESTUDO DA GERMINAÇÃO DE SEMENTES DE LAVANDA (Lavandula angustifolia Miller

    Directory of Open Access Journals (Sweden)

    E.M. AOYAMA

    1996-05-01

    Full Text Available Com o objetivo de estudar os efeitos do ácido giberélico, do efeito luz/escuro e do pré-resfriamento sobre a germinação de sementes de lavanda (Lavandula angustifolia Miller, empregou-se o delineamento experimental inteiramente casualizado, com cinco repetições de 30 sementes cada, e os seguintes tratamentos: testemunha; GA3 100 ppm; GA3 200 ppm; escuro; GA3 100 e 200 ppm + 48 h de pré-resfriamento e GA3 100 e 200 ppm + 7 dias de pré-resfriamento. As sementes de lavanda foram pré-embebidas por 18 horas nas soluções de GA3 e em água destilada e depois colocadas em gerbox, com papel de filtro umedecido com água destilada. Nos tratamentos com pré-resfriamento as sementes foram mantidas em câmara fria por 48 horas e 7 dias à temperatura de 5° C; posteriormente, foram transferidas para o germinador, sob luz branca contínua à temperatura constante de 25°C. A contagem das sementes foi realizada de 2 em 2 dias até completar 30 dias de teste. Para a avaliação dos efeitos dos tratamentos sobre a germinação das sementes foram realizadas as seguintes observações: a porcentagem de sementes germinadas e b tempo médio de germinação (expresso em dias. A partir dos resultados obtidos pode-se verificar que os tratamentos com GA3, em conjunto ou não com pré-resfriamento, aumentaram significativamente a porcentagem de germinação, além de acelerar tal processo.To study the effects of gibbellic acid, of the light/darkness and of pre-freezing on the germination of lavender seeds, a randomized experiment was used, with five replications of 30 seeds, with the following treatments: control, GA3 100 ppm, GA3 200 ppm, darkness, GA3 100 and 200 ppm + 48 h pre-freezing and GA3 100 and 200 ppm + 7 days of pre-freezing. The lavender seeds were pre-soaked during 18 hours in GA3 and destilated water solutions, and thereafter placed in gerbox, using moistened filter paper. In the pre-freezing treatments the seeds were kept in a refrigerator for

  17. A condicionalidade como zona conceitual

    Directory of Open Access Journals (Sweden)

    Taísa Peres de OLIVEIRA

    Full Text Available RESUMO Neste trabalho avaliam-se diferentes padrões de construções condicionais no português a partir dos parâmetros de condicionalidade. O objetivo principal é mostrar como a categoria está internamente organizada não apenas em termos de um núcleo prototípico, mas mostrando como os exemplares mais periféricos se relacionam a ele. As bases teóricas deste trabalho assentam-se sobre concepções funcional-cognitivistas, nos termos de Bybee (2010 e Dancygier (1998, especialmente considerando a relativa instabilidade da gramática e a fluidez da categoria. As reflexões principais apontam a condicionalidade como uma categoria bastante complexa que serve de/como abrigo de múltiplas construções.

  18. A comparison between Miller and five-stroke cycles for enabling deeply downsized, highly boosted, spark-ignition engines with ultra expansion

    International Nuclear Information System (INIS)

    Li, Tie; Wang, Bin; Zheng, Bin

    2016-01-01

    Highlights: • Deeply downsized, highly boosted SI engine with ultra-expansion cycle is studied. • The Miller and five stroke cycles are compared on BSFC improvements and WOT performance. • The mechanism of fuel conversion efficiency improvement at various loads is discussed. • Performance of the two-stage boosting system for the downsized SI engine is investigated. • A unique strategy using the bypass for the five-stroke engine is proposed. - Abstract: It has been well known that the engine downsizing combined with intake boosting is an effective way to improve the fuel conversion efficiency without penalizing the engine torque performance. However, the potential of engine downsizing is not yet fully explored, and the major hurdles include the knocking combustion and the pre-turbine temperature limit, owing to the aggressive intake boosting. Using the engine cycle simulation, this paper compares the effects of the Miller and five stroke cycles on the performance of the deeply downsized and highly boosted SI engine, taking the engine knock and pre-turbine temperature into consideration. In the simulation, the downsizing is implemented by reducing the combustion cylinder number from four to two, while a two stage boosting system is designed for the deeply downsized engine to ensure the wide-open-throttle (WOT) performance comparable to the original four cylinder engine. The Miller cycle is realized by varying the intake valve timing and lift, while the five stroke cycle is enabled with addition of an extra expansion cylinder between the two combustion cylinders. After calibration and validation of the engine cycle simulation models using the experimental data in the original engine, the performances of the deeply downsized engines with both the Miller and five stroke cycles are numerically studied. For the most frequently operated points on the torque-speed map, at low loads the Miller cycle exhibits superior performance over the five-stroke cycle in terms

  19. Effect of Different Solvents on Total Phenolic Contents and Antioxidant Activity of Zizyphus jujube Miller Fruits

    Directory of Open Access Journals (Sweden)

    Gholamhossein Davarynejad

    2017-10-01

    Full Text Available Introduction: Phenolic compounds have an ability to scavenge free radicals and cause the balance of reactive oxygen species (ROS in our body. This balance prevents atherosclerosis, coronary heart and cancer diseases. Butylated hydroxyl toluene (BHT is a well-known synthetic antioxidant, which is restricted to be used due to its probable toxic effects. Therefore, replacement of synthetic antioxidants with plant materials with high amounts of antioxidant activity, which protect the body from free radicals and many diseases caused by lipid peroxidation, is an appropriate option. ZiziphusjujubaMiller is one of the forty species belonging to Rhamnaceae family, which produces a great deal of industrial raw materials for horticultural, ornamental, food, and pharmaceutical industries. Antioxidants can be extracted by various solvents and extraction methods. Solvent extraction is the most common method used for separating natural antioxidants. Solvent properties undoubtedly play a key role in the extraction of antioxidative compounds. The type and yield of antioxidant extracted have been found to vary as affected by the solvent properties such as polarity, viscosity and vapor pressure. Therefore, it is difficult to develop a unified standard method for the extraction of antioxidants from all plant materials. Materials and Methods: Plant materials Fresh fruits were collected from Birjand, Iran, in late summer 2014. The samples were air dried under the shade at room temperature. Dried fruits were ground by using a mortar and pestle and were separately extracted by distilled water and organic solvents such as methanol, ethanol and acetone (50%, 90% and100% (v/v. After filtering through the Whatman paper #3 and removing the solvents (using a rotary evaporator (BUCHI V-850 and water (using a freeze dryer, (OPERON, FDB-5503, Korea, the dried extracts were stored in refrigerator for further analysis. Determination of Total Phenolic Content (TPC Samples were

  20. Laterally positioned flap-revised technique along with platelet rich fibrin in the management of Miller class II gingival recession

    Directory of Open Access Journals (Sweden)

    Jagmohan Singh

    2013-01-01

    Full Text Available Gingival recession is a complex phenomenon that may present numerous therapeutic challenges to the clinician. The laterally positioned flap is commonly used to cover isolated, denuded roots that have adequate donor tissue laterally and vestibular depth. Various modifications in laterally sliding flap have been proposed in order to avoid the reported undesirable results on the donor teeth. Recently, use of growth factors has been proposed in combination with surgical techniques. This article highlights the use of laterally positioned pedicle flap-revised technique as a modification of laterally sliding flap technique along with autologous suspension of growth factors, platelet rich fibrin membrane (PRF for the management of localized Miller class-II gingival recession. After 6 months of follow-up, the clinical condition was stable with 80% root coverage and satisfactory gingival tissue healing at both donor and recipient site with no signs of inflammation. An excellent esthetical outcome was achieved and the patient was satisfied with case resolution.

  1. A new species of Hepatozoon Miller, 1908 (Apicomplexa: Adelerina) from the snake Philodryas nattereri Steindachner (Squamata: Dipsadidae) in northeastern Brazil.

    Science.gov (United States)

    Borges-Nojosa, Diva M; Borges-Leite, M Juliana; Maia, João P; Zanchi-Silva, Djan; da Rocha Braga, Roberta; Harris, D James

    2017-01-01

    Based on both unique morphological characteristics of the gamont, distinct changes caused to the host erythrocyte and analysis of partial 18S rRNA gene sequences, a new parasite of the genus Hepatozoon Miller, 1908 is described from the snake Philodryas nattereri Steindachner (Squamata: Dipsadidae) in northeastern Brazil. The new species, Hepatozoon musa n. sp., is characterized by large and curved mature gamonts (18.9 ± 0.9 μm in length and 3.8 ± 0.3 μm in width) that considerably engorge infected host erythrocytes and displace the nucleus laterally, which become longer and thinner. Phylogenetic estimates indicate the new species is more closely related to the recently described Hepatozoon cuestensis O'Dwyer, Moço, Paduan, Spenassatto, Silva & Ribolla, 2013, from Brazilian rattlesnakes. These recent findings highlight the need for further studies of Hepatozoon to better determine the biodiversity of this common but poorly-studied parasite group.

  2. Risk and efficacy of human-enabled interspecific hybridization for climate-change adaptation: Response to Hamilton and Miller (2016)

    Science.gov (United States)

    Kovach, Ryan P.; Luikart, Gordon; Lowe, Winsor H.; Boyer, Matthew C.; Muhlfeld, Clint C.

    2016-01-01

    Hamilton and Miller (2016) provide an interesting and provocative discussion of how hybridization and introgression can promote evolutionary potential in the face of climate change. They argue that hybridization—mating between individuals from genetically distinct populations—can alleviate inbreeding depression and promote adaptive introgression and evolutionary rescue. We agree that deliberate intraspecific hybridization (mating between individuals of the same species) is an underused management tool for increasing fitness in inbred populations (i.e., genetic rescue; Frankham 2015; Whiteley et al. 2015). The potential risks and benefits of assisted gene flow have been discussed in the literature, and an emerging consensus suggests that mating between populations isolated for approximately 50–100 generations can benefit fitness, often with a minor risk of outbreeding depression (Frankham et al. 2011; Aitken & Whitlock 2013; Allendorf et al. 2013).

  3. La financiación de las empresas en las perspectivas de Modigliani-Miller y Williamson

    Directory of Open Access Journals (Sweden)

    González Jorge Iván

    2003-12-01

    Full Text Available El artículo compara las visiones que tienen Modigliani-Miller y Williamson sobre los modos de financiación de las empresas (acciones y deuda. Mientras que para los primeros las alternativas de financiación son instrumentos técnicos, para Williamson son el reflejo de estructuras de gobernabilidad diferentes. Después de presentar las líneas generales de cada enfoque, el artículo muestra sus implicaciones analíticas. La teoría institucional de Williamson amplía el horizonte porque, de una parte, muestra que la economía tiene que dialogar con otras disciplina y, de otra, pone en evidencia el vínculo entre la decisión financiera y la gobernabilidad de la empresa.

  4. Nicotine promotes rooting in leaf explants of in vitro raised seedlings of tomato, Lycopersicon esculentum Miller var. Pusa Ruby.

    Science.gov (United States)

    Bamel, Kiran; Gupta, Rajendra; Gupta, Shrish C

    2015-11-01

    Nicotine promotes rooting in leaf explants of tomato (Lycopersicon esculentum Miller var. Pusa Ruby). Nicotine at 10(-9) to 10(-3) M concentrations was added to the MS basal medium. The optimum response (three-fold increase in rooting) was obtained at 10(-7) M nicotine-enriched MS medium. At the same level i.e. 10(-7) M Nicotine induced dramatic increase (11-fold) in the number of secondary roots per root. We have shown earlier that exogenous acetylcholine induces a similar response in tomato leaves. Since nicotine is an agonist of one of the two acetylcholine receptors in animals, its ability to simulate ACh action in a plant system suggests the presence of the same molecular mechanism operative in both, animal and plant cells. Copyright © 2015 Elsevier B.V. All rights reserved.

  5. Montagem e Imagem como Paradigma

    Directory of Open Access Journals (Sweden)

    Cesar Huapaya

    2016-01-01

    Full Text Available O pensar como montagem e imagem tornou-se um método revelador nos processos de estudos práticos e teóricos do artista e dos pesquisadores nos séculos XX e XXI. Este artigo procura articular três formas de pensar por montagem: nas obras de Bertolt Brecht, Sergei Eisenstein e Georges DidiHuberman. O filósofo e historiador da arte Georges Didi-Huberman reinaugura o debate e o exercício de pensar a antropologia da imagem e a montagem como metalinguagem e forma de conhecimento.

  6. Quantitative analysis of Miller mobility index for the diagnosis of moderate to severe periodontitis - A cross-sectional study

    Directory of Open Access Journals (Sweden)

    Chung-Ping Wu

    2018-03-01

    Full Text Available Background/purpose: We assessed the mobility of single-root teeth by using Miller's mobility index (MMI and to analyze the validity of MMI for the diagnosis of periodontitis. Materials and methods: A total of 30 patients were included and the Spearman correlation coefficient was used to assess the correlation between MMI, clinical attachment level (CAL, and probing depth (PD. The validity of MMI for the diagnosis of the severity of periodontitis was evaluated using the receiver operating characteristic (ROC curve, area under curve (AUC value, positive predictive value (PPV. Results: Strong correlations were observed between MMI and CAL (r = 0.92 and between MMI and PD (r = 0.76. When the CAL = 3–4 mm and CAL ≥5 mm groups were pooled together, the AUC value was 0.81. The AUC was 0.86 for diagnosis with MMI in the CAL ≥5 mm group. A PPV of 100% was achieved for all grades when MMI >1. When the teeth with PD ≥ 5 to <7 mm and PD ≥ 7 mm groups were pooled together, the AUC value for MMI was 0.80. The PPV was 98.8%, 99%, and 100% for MMI Grade 1, Grade 2, and Grade 3, respectively. When PD ≥ 7 mm was defined as severe periodontitis, the AUC value for MMI was 0.72. Conclusion: MMI may provide valuable information for the diagnosis of moderate and severe periodontitis when CAL is not obtainable during routine practice. Keywords: Miller's mobility index, Negative predictive value, Nonsurgical periodontal therapy, Positive predictive value, Receiver operating characteristic curve, Tooth mobility

  7. The Genyornis Egg: Response to Miller et al.'s commentary on Grellet-Tinner et al., 2016

    Science.gov (United States)

    Grellet-Tinner, Gerald; Spooner, Nigel A.; Handley, Warren D.; Worthy, Trevor H.

    2017-04-01

    Williams (1981) and Williams and Rich (1991) attributed Australian Quaternary fossil eggshell that differed from that of emu Dromaius novaehollandiae to the extinct bird Genyornis newtoni without any osteological or embryonic support. Such association by proximity or abundance mirrors the case of the mistaken association of oviraptor eggs to Protoceratops in the 1920's by Andrews (Grellet-Tinner and Makovicky, 2006). No other candidate species was considered, and this attribution has been unchallenged and followed by everyone thereafter. Much research has been done on this Australian eggshell, with one result being that the extinction of the parent of this eggshell is the most well documented for a taxon in Australia (e.g., Miller et al., 1999, 2005). Grellet-Tinner et al. (2016) raised several problems with the identity of the eggshell Williams (1981) attributed to Genyornis newtoni and suggested that extinct megapodes of the genus Progura were the more likely layer of this eggshell type, therein referred to as ;putative Genyornis oological material; (PGOM). Miller et al. (2017) challenged our hypothesis stating that ;Based on the dimensions of the reconstructed Spooner Egg,Grellet-Tinner et al. (2016)argue that PGOM is too small for a bird with the body mass estimated for Genyornis (168-275 kg) … …[and] …. None of the additional PGOM observations reported byGrellet-Tinner et al. (2016)are inconsistent with a Genyornis parent;. Here we take the opportunity to respond to their critique, the basis of which resolves into a few points, which we address in turn.

  8. National Program for Inspection of Non-Federal Dams. Miller Pond Dam (CT 00154), Thames River Basin, Waterford, Connecticut. Phase I Inspection Report.

    Science.gov (United States)

    1980-08-01

    Road and adjacent to the Brook are likely to be impacted by dam failure. Because a breach of Miller Pond Dam would cause severe economic loss and the...TO THE ASSUMED SPILL CREST ELEVATION 3 WATER %. WACE ELEATCRS. SHOREI I NE AND 7AI NGTER COGRATIONS ARE APPROXIMATE, AS OBTAINED Dl"F I -t DAM INSECTION

  9. 1 küsimus noorele juhile : Mis teha, kui kopp on ees - kuidas sa stressist jagu saad? / Riho Jürvetson, Merit Miller, Krister Rekkaro ... [jt.

    Index Scriptorium Estoniae

    2009-01-01

    Küsimusele vastavad EMT erakliendi osakonna juhataja Riho Jürvetson, KPMG Baltics müügijuht Merit Miller, ArtPrint juht Krister Rekkaro, Dateli juhatuse liige Triin Sepp, Media House projektijuht Tanel Tarkmees, Ober-Haus Kinnisvara tegevjuht Katrin Klein-Näppi

  10. Critical Terrorism Studies Since 11 September 2001: What Has Been Learned? Edited by David Miller, Jessie Blackbourn, Rani Dhanda and Helen Dexter. New York, NT: Routledge, 2014.

    Directory of Open Access Journals (Sweden)

    Mark Roberts

    2014-04-01

    Full Text Available Critical Terrorism Studies Since 11 September 2001: What Has Been Learned? Edited by David Miller, Jessie Blackbourn, Rani Dhanda and Helen Dexter. New York, NT: Routledge, 2014. ISBN 978-0-415-83852-8. Graphs. Tables. Sources cited. Index. Pp. viii, 144. $137.75.

  11. Los organizadores gráficos: un aprendizaje significativo desde una perspectiva constructivista como propuesta didáctica para la enseñanza de los conceptos de la química abordados en la educación media secundaria

    OpenAIRE

    Arango Gómez, René Osvaldo

    2014-01-01

    Resumen: Las experiencias de aula del autor en la enseñanza de la química en educación media de bachillerato, teniendo como estrategia cognitiva los esquemas, tablas y otros Organizadores Gráficos, se teorizaron en postulados constructivistas que para la pedagogía aportan autores como Gowin, Ausubel, Piaget, Kelly, Vigotsky, Miller, Paivio, Johnson-Laird, Vergnaud, Novak y otros, que enfatizan como dentro de las teorías constructivistas del aprendizaje, los organizadores gráficos podrían s...

  12. La ciudad como ecosistema urbano

    OpenAIRE

    Higueras García, Esther

    2013-01-01

    LA CIUDAD COMO ECOSISTEMA URBANO .- La ecología y los ecosistemas .- El ecosistema urbano, definición, alcance y oportunidad .- El metabolismo urbano .- Los síntomas de la patología urbana .- Los objetivos del nuevo ecosistema urbano .- Las aportaciones de los ecobarrios

  13. LA CUESTIÓN AGRARIA COMO ENFOQUE Y COMO PROBLEMA

    Directory of Open Access Journals (Sweden)

    Carlos Salgado

    2000-01-01

    Full Text Available Este ensayo trata de llamar la atención sobre los problemas del agro hoy, colocando especial énfasis en la disrupción entre las razones tecnológicas -que se asumen como ideológicas-, económicas y políticas que han inspirado el desarrollo del agro, o mejor, sobre las cuales se han basado las políticas de crecimiento agropecuario.

  14. Influência do meio bifásico na multiplicação de gemas e no alongamento de brotos in vitro de Ananas lucidus Miller.

    Directory of Open Access Journals (Sweden)

    Neiliane Santiago Sombra Borges

    2003-06-01

    Full Text Available Este estudo foi realizado no Laboratório de Biotecnologia Vegetal da Embrapa Agroindústria Tropical, em Fortaleza (CE. Nele objetivou-se avaliar a influência do meio de cultura bifásico na multiplicação de gemas e no alongamento de brotos, in vitro, de abacaxi ornamental (Ananas lucidus Miller. Na multiplicação de gemas, utilizaram-se como explantes, brotos de cultura in vitro, com altura aproximada de 0,5 cm. Utilizou-se o meio MS, solidificado e líquido, suplementado com 1,0 mg.L-1 de 6- benzilaminopurina (BAP e 0,1 mg.L-1 de ácido naftaleno-acético (ANA. O delineamento estatístico utilizado foi o inteiramente casualizado com os seguintes tratamentos: acréscimos de 10 mL de meio líquido/frasco nos períodos de cultivo 0; 15; 30; 15 e 30; 30 e 60 e, a cada 15 dias durante 75 dias, com 14 repetições e 6 explantes/parcela. Avaliaram-se os pesos de matéria fresca e de matéria seca aos 90 dias de cultivo. No mesmo período, as culturas de cada tratamento foram transferidas para o meio de cultura de Murashige & Skoog (MS solidificado com 0,4% (p/v de ágar e suplementado com 0,01 mg.L-1 de ANA para o alongamento dos brotos, utilizando, como explante, aglomerado de gemas com aproximadamente 0,5 cm de diâmetro. Cada tratamento foi composto por 6 epetições e 6 explantes/parcela, dispostos em delineamento inteiramente casualizado. Realizaram-se três subcultivos sucessivos para o mesmo meio “novo” a cada 30 dias. Aos 90 dias de cultivo em meio de alongamento avaliaram-se o número de rotos/explante e as porcentagens de número de brotos e de brotos enraizados em quatro amplitudes de altura. Os maiores valores médios para pesos de matéria fresca (913,7 mg/explante e matéria seca (69,1 mg/explante foram obtidos com o acréscimo de 10 mL de meio líquido aos 30 dias de cultivo. Os acréscimos de meio líquido efetuados aos 15 e 30 dias de cultivo proporcionaram a maior média de número de brotos (32,6 brotos/explante aos 90

  15. Interacciones nutrimentales y normas de la técnica de nutrimento compuesto en nopal (Opuntia ficus-indica L. Miller

    Directory of Open Access Journals (Sweden)

    F. Blanco-Macías

    2006-01-01

    Full Text Available Hacen falta conocimientos básicos sobre la nutrición del nopal, esto para hacerlo más productivo. En ese contexto, se utilizó la técnica de Diagnóstico de Nutrimento Compuesto (DNC para definir normas preliminares de nutrición en nopal (Opuntia ficus-indica L. Miller, sustentada en la relación cúbica entre los rendimientos y las funciones de proporción de varianza acumulada, así como en la función de distribución χ2 de los índices de nutrición global. Se consideró una base de datos con 180 observaciones de rendimiento (expresado en peso fresco de cladodio por planta y las concentraciones (% de N, P, K, Ca y Mg en cladodios de un año de edad. El rendimiento de biomasa de nopal depende significativamente de las concentraciones de N (P≤0.01, K (P≤0.05 y Mg (P≤0.05. Se apreciaron los siguientes sinergismos significativos: P-K (P≤0.05, K-Mg (P≤0.01 y Mg-Ca (P≤0.01; y los antagonismos: N-Ca (P≤0.01 y N-Mg (P≤0.05. Las normas preliminares de DNC propuestas y expresadas como logaritmos de las proporciones centradas (media ± desviación estándar para d = 5 nutrientes, con base en una subpoblación (n = 57 de alto rendimiento (más de 46.7 kg·planta-1 de cladodios de nopal cultivado en un suelo calcáreo son: *N V = -0.98 ± 0.35, * P V = -2.23 ± 0.21, * K V = 0.25 ± 0.19, * Ca V = 0.37 ± 0.35, * Mg V = -0.71 ± 0.17, y * Rd V = 3.29 ± 0.09. Esas normas corresponden a los siguientes rangos de concentraciones óptimas (medias ± desviación estándar en los cladodios: 1.29 ± 0.47 de N (%, 0.36 ± 0.08 de P (%, 4.24 ± 0.88 de K (%, 4.96 ± 1.73 de Ca (% y 1.61 ± 0.27 de Mg (%. El nopal concentra más de cuatro veces K y Ca que N, demostrando que es una planta calcitrófica. Algo similar ocurre entre Mg y P, pues el primero se concentra cuatro veces más que el segundo

  16. Potencial fitotóxico de extratos foliares de Aloe arborescens Miller (Asphodelaceae produzidos em diferentes épocas do ano Analysis of the phytotoxic potential of Aloe arborescens Miller leaf extracts (Asphodelaceae produced at different times of the year

    Directory of Open Access Journals (Sweden)

    Cynthia Murakami

    2009-03-01

    Full Text Available Este trabalho visou analisar o potencial fitotóxico de extratos foliares de Aloe arborescens Miller sobre a germinação e crescimento de plântulas de alface (Lactuca sativa L.. Amostras de folhas foram coletadas nas quatro estações climáticas e maceradas em etanol P.A. por 28 dias. Os extratos produzidos foram fracionados em extratos etanólico e clorofórmico e tiveram as concentrações reduzidas a 1%. Os bioensaios de ação fitotóxica foram desenvolvidos em triplicata, sob luz constante e temperatura ambiente. Apenas o extrato clorofórmico de primavera mostrou forte atividade fitotóxica sobre a germinação das sementes de alface (16,67%. Todos os extratos reduziram significativamente a primeira contagem, índice de velocidade germinação (IVG e o crescimento do eixo hipocótiloradicular (EHR das plântulas de alface, porém os extratos clorofórmicos mostraram maior atividade fitotóxica, gerando alterações morfológicas mais intensas sobre as plântulas de alface e apresentaram maiores teores de compostos fenólicos. Apesar de todos os extratos clorofórmicos inibirem fortemente o crescimento das folhas cotiledonares das plântulas de alface, não se observaram neste último efeito, variações em função dos períodos de coleta.This study aimed to analyze seasonal variation in the phytotoxic potential of Aloe arborescens Miller leaf extract on lettuce (Lactuca sativa L. germination and growth. Leaf samples were collected in the four seasons and were macerated in ethanol P.A. for 28 days. The extracts were fractionated into solutions made with ethanol and chloroform, and concentrations were reduced to 1%. Phytotoxic activity bioassays were carried out in triplicate, under constant light and ambient temperature. Only the spring chloroform extract showed strong phytotoxic activity on lettuce seed germination (16.67%. All extracts significantly reduced the first count, germination velocity index (GVI and growth of the hipocotyl

  17. Los ancianos como actores sociales

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    Mª PIA ARENYS

    1996-01-01

    Full Text Available En este artículo se recogen las discusiones de grupo que se realizaron durante cuatro meses en Barcelona como preparación del "II congreso de la gent gran" (II congreso de ancianos de esta ciudad, en noviembre de 1993. las discusiones se llevaron a cabo en las sedes de cada distrito, previa presentación de la ponencia por parte de un técnico. los componentes de los grupos son personas mayores sensibilizadas y comprometidas que forman parte del consejo de bienestar social del ayuntamiento de Barcelona. la metodología utilizada es cualitativa para el análisis del discurso, que se ha estructurado en los siguientes puntos: bajo el epígrafe "los ancianos como ciudadanos de derechos y obligaciones" se recogen los temas de valoración de la vejez, la familia, la jubilación, las implicaciones de los ancianos como ciudadanos de derechos y deberes y las funciones sociales de los ancianos.-- sobre estos temas, los mayores expresaron sus opiniones, que se vertieron, resumidamente, en la redacción final de la ponencia. aquí se recogen y se han analizado los materiales que ofrecen una versión de primera mano sobre lo que opinan los ancianos respecto al tema de "la valoración de la vejez".

  18. Miller-Urey Experiments to Assess the Production of Amino Acids under Impact Conditions on Early Titan

    Science.gov (United States)

    Turse, Carol; Khan, A.; Leitner, J. J.; Firneis, M. G.; Schulze-Makuch, D.

    2012-05-01

    We performed Miller-Urey type experiments to determine the organic synthesis of amino acids under conditions that have likely occurred on Saturn's moon Titan and are also relevant to Jupiter's moon Europa. We conducted the first set of experiments under early Earth conditions, similar to the original Miller-Urey experiments (Miller, 1953). In brief, the 250ml round bottom flask was filled with approximately 200mL of filtered sterile water and the apparatus was placed under vacuum for 10 minutes to purge the water of gases. The system was then flushed with hydrogen gas and placed under vacuum three times. Gases were then added in the following order: hydrogen gas to 0.1 bar, methane gas to 0.45 bar and ammonia to 0.45 bar ( 1bar total). The water was then brought to a boil and the spark was applied using the tesla coil up to a maximum of 50,000 volts. The apparatus was run for approximately 5-7 days. Between the runs the apparatus was cleaned using a hot 10% sodium hydroxide solution followed by a dilute sulfuric acid wash and four rinses with Millipure water. In the second set of experiments we simulated conditions that could have existed on an early, warm Titan or after an asteroid strike on Titan (Schulze-Makuch and Grinspoon, 2005), particularly if the strike would have occurred in the subpolar areas that exhibit vast ethane-methane lakes. If the asteroid or comet would be of sufficient size, it would also puncture the icy crust and access a vast reservoir of the subsurface liquid ammonia-water mixture. Thompson and Sagan (1992) showed that a liquid water-ammonia body could exist for millions of years on Titan after an asteroid impact. Thus, we modified the experimental conditions as described above and report on the results. Assuming a moderate impact in the subpolar areas of Titan, we used an atmosphere of currently 1.5 bar, but increased the partial pressure of methane to 1 bar (and 0.1 bar ammonia assuming a minor amount of ammonia-water ice being evaporated

  19. La proyección como proceso y como mecanismo

    OpenAIRE

    Brusset, Bernard

    2001-01-01

    La proyección es a la vez un mecanismo elemental testimonio de la fragilidad de la organización defensiva y un proceso cuyo rol es fundamental en el funcionamiento psíquico. En este doble aspecto, la proyección guarda especificidades diferentes en la neurosis y en la psicosis al punto que se las deba considerar como fundamentalmente diferentes? O bien las diferencias de contexto, del nivel del funcionamiento psíquico, de lugar, de función pueden explicar las diferencias clínicas justificando ...

  20. Studying Antarctic Ordinary Chondrite (OC) and Miller Range (MIL) Nakhlite Meteorites to Assess Carbonate Formation on Earth and Mars

    Science.gov (United States)

    Evans, Michael Ellis

    Carbonates are found in meteorites collected from Antarctica. The stable isotope composition of these carbonates records their formation environment on either Earth or Mars. The first research objective of this dissertation is to characterize the delta18O and delta 13C values of terrestrial carbonates formed on Ordinary Chondrites (OCs) collected in regions near known martian meteorites. The second objective is to characterize the delta18O and delta13C values of martian carbonates from Nakhlites collected from the Miller Range (MIL). The third objective is to assess environmental changes on Mars since the Noachian period. The OCs selected had no pre-terrestrial carbonates so any carbonates detected are presumed terrestrial in origin. The study methodology is stepped extraction of CO2 created from phosphoric acid reaction with meteorite carbonate. Stable isotope results show that two distinct terrestrial carbonate species (Ca-rich and Fe/Mg-rich) formed in Antarctica on OCs from a thin-film of meltwater containing dissolved CO2. Carbon isotope data suggests the terrestrial carbonates formed in equilibrium with atmospheric CO2 delta 13C = -7.5‰ at >15°C. The wide variation in delta 18O suggests the carbonates did not form in equilibrium with meteoric water alone, but possibly formed from an exchange of oxygen isotopes in both water and dissolved CO2. Antarctica provides a model for carbonate formation in a low water/rock ratio, near 0°C environment like modern Mars. Nakhlite parent basalt formed on Mars 1.3 billion years ago and the meteorites were ejected by a single impact approximately 11 million years ago. They traveled thru space before eventually falling to the Earth surface 10,000-40,000 years ago. Nakhlite samples for this research were all collected from the Miller Range (MIL) in Antarctica. The Nakhlite stable isotope results show two carbonate species (Ca-rich and Fe/Mg-rich) with a range of delta18O values that are similar to the terrestrial OC

  1. On studying narcissism in personality inventories rather than the Narcissistic Personality Inventory: Reply to Miller and Lynam (2017).

    Science.gov (United States)

    Fossati, Andrea; Somma, Antonella; Borroni, Serena; Markon, Kristian E

    2017-11-01

    Miller and Lynam's (2017) commentary proved to be very helpful in clarifying that r alerting-CV and r contrast-CV coefficient values reported in our study indicated that the Narcissistic Personality Inventory (NPI) yielded a trait profile much more closely aligned with expert ratings of Diagnostic and Statistical Manual of Mental Disorders (4th edition; DSM-IV) narcissistic personality disorder (NPD) than did other measures. The commentary gives us the opportunity to make it clear that our study was designed to demonstrate the clinical usefulness of Personality Inventory for DSM-5 (PID-5) domain and trait scales in profiling pathological narcissism. Thus, demonstrating the superiority/inferiority of the Pathological Narcissism Inventory (PNI) over the NPI was not among the aims of our study. The publication of the commentary also gives us the opportunity to clarify the reasons why we think that the interpretation of the r alerting-CV and r contrast-CV coefficients deserves some cautions. As a final remark, we think that the time has come to move from personality disorder classifications based on "clinical wisdom" to a redefinition of personality pathology in terms of systems of traits. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  2. Molecular survey and microscopic examination of Hepatozoon Miller, 1908 (Apicomplexa: Adeleorina) in lacertid lizards from the western Mediterranean.

    Science.gov (United States)

    Maia, João P M C; Perera, Ana; Harris, D James

    2012-12-01

    The genus Hepatozoon Miller, 1908 (Apicomplexa: Adeleorina) is composed of intracellular haemogregarine parasites that are widely distributed among all tetrapod groups. The present study combines microscopic and molecular data on haemogregarine parasites from lizards in the western Mediterranean. We screened tissue samples and examined blood smears for the presence of species of Hepatozoon from four lizards, namely Algyroides marchi Valverde, endemic to Southeast Spain, Podarcis bocagei Seoane from Spain and Portugal, P hispanica Steindachner from Spain, and P lilfordi Günther from Cabrera, Balearic Islands (Spain). Our results show that prevalence and intensity of Hepatozoon parasites vary between and within lizard species from different regions. Algyroides marchi and P bocagei from Spain had the lowest values, whereas P hispanica had the highest. Phylogeny based on 18S rRNA gene sequences indicates that most of the new Hepatozoon sequences are part of a clade exclusive from North African and Iberian lizards, except for a single P bocagei isolate that is found related to another clade including isolates from other reptile host species and rodents. Interestingly, isolates from Algyroides form a distinct monophyletic subgroup, which could be a signal of strict host-specificity within this host genus.

  3. Traceability of Opuntia ficus-indica L. Miller by ICP-MS multi-element profile and chemometric approach.

    Science.gov (United States)

    Mottese, Antonio Francesco; Naccari, Clara; Vadalà, Rossella; Bua, Giuseppe Daniel; Bartolomeo, Giovanni; Rando, Rossana; Cicero, Nicola; Dugo, Giacomo

    2018-01-01

    Opuntia ficus-indica L. Miller fruits, particularly 'Ficodindia dell'Etna' of Biancavilla (POD), 'Fico d'india tradizionale di Roccapalumba' with protected brand and samples from an experimental field in Pezzolo (Sicily) were analyzed by inductively coupled plasma mass spectrometry in order to determine the multi-element profile. A multivariate chemometric approach, specifically principal component analysis (PCA), was applied to individuate how mineral elements may represent a marker of geographic origin, which would be useful for traceability. PCA has allowed us to verify that the geographical origin of prickly pear fruits is significantly influenced by trace element content, and the results found in Biancavilla PDO samples were linked to the geological composition of this volcanic areas. It was observed that two principal components accounted for 72.03% of the total variance in the data and, in more detail, PC1 explains 45.51% and PC2 26.52%, respectively. This study demonstrated that PCA is an integrated tool for the traceability of food products and, at the same time, a useful method of authentication of typical local fruits such as prickly pear. © 2017 Society of Chemical Industry. © 2017 Society of Chemical Industry.

  4. Cálculo de la resistencia a la penetración en hojas de aloe vera (Barbadenses Miller

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    Giovanni Torres Charry

    2013-12-01

    Full Text Available Para caracterizar la resistencia a la penetración de hojas de aloe vera, variedad Barbadenses Miller, se diseñó una máquina y se establecieron los protocolos de medición para desplazamiento y fuerza necesarios para medir la resistencia a la penetración en tres puntos diferentes de las hojas. Los resultados mostraron que no existe una relación lineal entre el desplazamiento del indentador en la hoja y la fuerza de penetración. Por otro lado, se encontró que no existen diferencias en los valores de la fuerza de penetración al evaluar ésta en distintos puntos para una misma hoja. Se hallaron diferencias en los valores obtenidos entre hojas diferentes, lo que permite suponer que existe influencia de las características dimensionales de las hojas en el valor de la fuerza de penetración. Los valores máximos obtenidos para la fuerza de penetración variaron entre 22 y 27 N, para una velocidad de avance de la herramienta de 2.6 mm/s.

  5. Crescimento inicial e composição química de Pereskia aculeata Miller cultivada em diferentes luminosidades

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    Carla Regina Amorim dos Anjos Queiroz

    2015-07-01

    Full Text Available A Pereskia aculeata Miller é uma hortaliça não convencional cujo consumo pode fornecer à dieta substâncias nutritivas e antioxidantes, ambas com teores influenciados pelas condições de cultivo. Foram cultivadas, a partir de sementes, plantas em sombra artificial, em meia sombra e sem sombra. Avaliou-se o crescimento em termos de massa e unidades estruturais e quantificou-se o resíduo mineral, proteínas, lipídeos, fibra em detergente neutro, fenóis e atividade antioxidante. Há influência do sombreamento no crescimento, no teor de nutrientes e metabólitos secundários. As plantas sem sombra apresentaram maior altura, número de folhas, diâmetro do colo, massa seca de caules e folhas e atividade antioxidante. As plantas totalmente sombreadas apresentaram maiores teores de cinzas, lipídeos e proteínas. Para todos os parâmetros avaliados os teores quantificados em folhas foram maiores que em caules.

  6. Biochemical composition and antioxidant properties of Lavandula angustifolia Miller essential oil are shielded by propolis against UV radiations.

    Science.gov (United States)

    Gismondi, Angelo; Angelo, Gismondi; Canuti, Lorena; Lorena, Canuti; Grispo, Marta; Marta, Grispo; Canini, Antonella; Antonella, Canini

    2014-01-01

    UV radiations are principal causes of skin cancer and aging. Suntan creams were developed to protect epidermis and derma layers against photodegradation and photooxidation. The addition of antioxidant plant extracts (i.e. essential oil) to sunscreens is habitually performed, to increase their UV protective effects and to contrast pro-radical and cytotoxic compounds present in these solutions. According to these observations, in the present work, the alteration of chemical composition and bioactive properties of Lavandula angustifolia Miller essential oil, exposed to UV light, was investigated. UV induced a significant deterioration of lavender oil biochemical profile. Moreover, the antioxidant activity of this solution, in in vitro tests and directly on B16-F10 melanoma cells, greatly decreased after UV treatment. Our results also showed that essential oil was shielded from UV stress by propolis addition. Even after UV treatment, bee glue highly protected lavender oil secondary metabolites from degradation and also preserved their antiradical properties, both in in vitro antioxidant assays and in cell oxidative damage evaluations. This research proposed propolis as highly efficient UV protective and antiradical additive for sunscreens, cosmetics and alimentary or pharmaceutical products containing plant extracts. © 2013 The American Society of Photobiology.

  7. An Overlapping Case of Miller Fisher Syndrome, Bickerstaff’s Encephalitis, and the ASMAN Variant of Guillain-Barre Syndrome

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    E. J. Pegg

    2016-01-01

    Full Text Available A 56-year-old man presented with a 3-day history of progressive tingling of the hands, unsteadiness, and diplopia. He was initially diagnosed clinically with Miller Fisher Syndrome (MFS but later developed limb weakness consistent with Guillain-Barre Syndrome (GBS and subsequently reduced consciousness consistent with Bickerstaff’s brainstem encephalitis (BBE. Neurophysiology revealed an axonal motor and sensory neuropathy, in keeping with the Acute Motor and Sensory Axonal Neuropathy (AMSAN variant of GBS. We believe that our patient had an MFS-AMSAN-BBE overlap syndrome. This is supported by his glycolipid antibody profile with high titres of anti-GQ1b IgG antibody and anti-GD1a IgG antibody. Anti-GQ1b antibodies are frequently found in both MFS and BBE and the anti-GD1a antibody is associated with axonal forms of GBS. Overlapping cases of MFS and BBE are well described, and because the same antibody is often found in both conditions, it is thought that they share a common autoimmune mechanism. BBE has also been previously reported in association with GBS lending support that it also lies on the same spectrum. This overlapping case of ASMAN variant of GBS, MFS, and BBE provides further support that these conditions are part of the same spectrum.

  8. Bickerstaff's encephalitis and Miller Fisher syndrome associated with voltage-gated potassium channel and novel anti-neuronal antibodies.

    Science.gov (United States)

    Tüzün, E; Kürtüncü, M; Lang, B; Içöz, S; Akman-Demir, G; Eraksoy, M; Vincent, A

    2010-10-01

    GQ1b antibody (GQ1b-Ab) is detected in approximately two-thirds of sera of patients with Bickerstaffs encephalitis (BE). Whilst some of the remaining patients have antibodies to other gangliosides, many patients with BE are reported to be seronegative. Voltage-gated potassium channel antibody (VGKC-Ab) at high titer was detected during the diagnostic work-up of one patient with BE. Sera of an additional patient with BE and nine patients with Miller Fisher syndrome (MF) (all GQ1b-Ab positive) were investigated for VGKC-Ab and other anti-neuronal antibodies by radioimmunoprecipitation using 125I-dendrotoxin-VGKC and immunohistochemistry, respectively. Two patients with MF exhibited moderate titer VGKC-Abs. Regardless of positivity for VGKC or GQ1b antibodies, serum IgG of all patients with BE and MF reacted with the molecular layer and Purkinje cells of the cerebellum in a distinctive pattern. Voltage-gated potassium channel antibodies might be involved in some cases of BE or MF. The common staining pattern despite different antibody results suggests that there might be other, as yet unidentified, antibodies associated with BE and MF.

  9. A sombra das vossas asas: o corpo como rascunho e projeto de si

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    Érica Schlude Wels

    2015-12-01

    Full Text Available Arquiteturas corporais, consumo, alta e baixa cultura e processos de hibridização na hipermodernidade são os temas centrais do recorte teórico do presente artigo, a partir da crítica empreendida por autores como Baudrillard (2004, 2003, 1991, Lipovetsky (2004, Canclini (2003, 1999. Como obra-síntese dessas questões, escolhemos o romance “A sombra das vossas asas” (1997, de Fernanda Young, no qual o corpo da escritora ganha voz no plano narrativo; o enredo se constitui a partir de uma reconstrução corporal da protagonista, com vistas à aparência da modelo Lee Miller. Participam igualmente dessa leitura aspectos midiáticos, presentes também na figura da romancista, além da sedução, proporcionada por uma espécie de projeto pessoal de si mesmo, guiado pela moda e pelo consumo.

  10. El dictado como tarea comunicativa

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    Daniel Cassany

    2004-01-01

    Full Text Available El artículo explora las utilidades didácticas del dictado (la práctica comunicativa de oralizar o leer en voz alta un escrito para el aprendizaje funcional de una lengua materna o extranjera, en los diversos niveles de enseñanza. Después de criticar el uso tradicional de este ejercicio lingüístico, presentamos once formas diferentes de desarrollar un dictado en clase, con sus particulares contenidos, objetivos y metodologías. También analizamos con detalle la técnica más tradicional del dictado magistral, en la que el docente dicta palabra por palabra un texto al alumnado, poniendo énfasis en la ortografía; ofrecemos algunas orientaciones para incrementar el componente comunicativo de esta propuesta. Las conclusiones finales proponen entender esta técnica como un recurso metodológico variado, rico y sugerente, adaptado a cada situación de aprendizaje —y no como una práctica obligatoria y fosilizada.

  11. "What's happened to this family anyway?" : the disintegration of the American family in selected plays by O'Neill, Miller, and Shepard

    OpenAIRE

    Mathisen, Kari

    2009-01-01

    This thesis examines the disintegration of the American family as depicted in selected plays by Eugene O’Neill, Arthur Miller, and Sam Shepard. Four plays are central: Long Day’s Journey into Night (1956), Death of a Salesman (1949), Buried Child (1978), and True West (1980). (Journey and Salesman constitute my major focus and serve to generate my thesis statement, while Buried Child and True West illuminate the thematic concerns of Journey and Salesman from quite a different perspective, and...

  12. Plankton and other data collected from net casts in the Gulf of Alaska and Bering Sea from NOAA Ship MILLER FREEMAN from 1976-04-26 to 1976-05-31 (NCEI Accession 7700419)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Plankton and other data were collected using net casts in the Gulf of Alaska and Bering Sea from NOAA Ship MILLER FREEMAN from 26 April 1976 to 31 May 1976. Data...

  13. Como Lo Hago Yo: Myelomeningocele

    Science.gov (United States)

    Lazareff, Jorge

    2014-01-01

    Fortificación con ádico fólico es efectiva, pero aún falta conciencia en los jóvenes. La legalidad del aborto aumenta la importancia de la consulta prenatal. Realizo la cirugía bajo microcoscopio por razones didácticas. Irrigación continua para reducir la temperatura del tejido. Trato a la plaqueta como tejido viable. No suturo la plaqueta. No cierro músculo. ATB por una semana después de cirugía. Hidrocefalia: Válvula en todos los casos de ventriculomegalia. Médula anclada: Desanclar una sola vez. Chiari II: Revisar la válvula. Incluir en el seguimiento rendimiento escolar, puede indicar obstrucción de la válvula o médula anclada. PMID:24791217

  14. Phytophagous Arthropod Species Associated with Oil Bearing Rose, Rosa damascena Miller, in Isparta Province with Distributional Remarks

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    Ozan Demirözer

    2011-05-01

    Full Text Available Abstract: The study is based on field researches made in 2006–2007 in order to determine the phytophagous arthropod species and the deployment of those species that are economically important in the oil-bearing rose production fields in the province of Isparta. As a result, 62 species were determined, 60 of which belongs to 24 families of 6 orders in Insecta and 2 of which belongs to 2 families of 1 order in Arachnida. In the study, 57 species were identified up to species level and 5 species were identified up to genus level. It is seen that 20 species of them are previously identified as pests in Rosa damascena Miller in production fields in the literature. Ten of the species determined in the study are recorded as new for the oil-bearing rose pest fauna in the province of Isparta. Key words: Oil Bearing Rose, Rosa damascena, pest, phytophagous, Isparta Özet: Bu çalışma, Isparta ili yağ gülü üretim alanlarında bulunan fitofag türlerin belirlenmesi ve ekonomik açıdan önemlilerinin yayılışlarının ortaya çıkarılması amacıyla 2006-2007 yılları arasında yürütülmüştür. Çalışma sonucunda, Insecta sınıfının 6 takımına ait 24 familyadan toplam 60, Arachnida sınıfına ait 1 takıma bağlı 2 familyadan 2 olmak üzere toplamda 62 türün varlığı belirlenmiştir. Çalışmada 57 adet örneğin tür düzeyinde teşhisleri tamamlanırken, 5 türün cins düzeyine kadar teşhisleri yapılmıştır. Yapılan literatür çalışmalarında bu araştırmada belirlenen türlerden 20'sinin daha önceden Rosa damascena Miller üretim alanlarında zararlı olarak bildirildiği saptanmıştır. Çalışmada belirlenen türlerden 10'u ise Isparta ili yağ gülü zararlı faunası için yeni kayıt niteliği taşımaktadır. Anahtar kelimeler: Yağ gülü, Rosa damascena, zararlı, fitofag, Isparta

  15. Protective effect of two extracts of Cydonia oblonga miller (Quince fruits on gastric ulcer induced by indomethacin in rats

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    Morteza Parvan

    2017-01-01

    Full Text Available Background: In various studies, Cydonia oblonga Miller (quince has been reported to have many properties such as antioxidant and anti-ulcerative effects. This study has aimed to investigate the protective effects of quince aqueous extract (QAE and quince hydroalcoholic extract (QHE on gastric ulcer caused by indomethacin and the relevant macroscopic, histopathology, and biochemical factors in rats. Methods: Ten groups of male Wistar rats, six in each, were used in this study. These groups included: normal (distilled water, control (distilled water + indomethacin, reference (ranitidine or sucralfate + indomethacin, and test groups (QAE or QHE + indomethacin treated with three increasing doses (200, 500, and 800 mg/kg. Extracts and drugs were given orally to rats 1 h before injecting the indomethacin (25 mg/kg, intraperitoneally. Six hours later, the abdomen of rats was exposed, its pylorus was legated, gastric acid content was extracted, and its pH and the amount of pepsin secreted were measured by Anson method. Then, histopathology indices, ulcer area, ulcer index, and myeloperoxidase (MPO activity were measured in gastric mucus. Results: Both extracts of quince were effective to reduce the acidity of stomach and pepsin activity. Compared to control group, the average of enzyme activity of MPO was significantly declined in all treated groups. Control group had the highest level of gastric ulcer indices including severity, area, and index while the evaluated parameters had decreased in all extract treated groups although it seems that QAE was somewhat more effective. Conclusions: Protective effect of QAE and QHE on gastric ulcer was done by undermining offensive factors including decreasing the secretion of gastric acid and pepsin activity and by strengthening the protective factors of gastric mucus including antioxidant capacity.

  16. Mortality from internal and external radiation exposure in a cohort of male German uranium millers, 1946-2008

    Energy Technology Data Exchange (ETDEWEB)

    Kreuzer, M.; Dufey, F.; Schnelzer, M.; Sogl, M.; Walsh, L. [Federal Office for Radiation Protection, Neuherberg (Germany). Dept. of Radiation Protection and Health; Laurier, D. [Institute for Radiological Protection and Nuclear Safety (IRSN), Paris (France); Nowak, D. [LMU Muenchen (Germany). Inst. for Occupational Medicine and Environmental Medicine; Marsh, J.W. [Public Health England, Chilton, Didcot (United Kingdom)

    2015-05-15

    To examine exposure-response relationships between ionizing radiation and several mortality outcomes in a subgroup of 4,054 men of the German uranium miner cohort study, who worked between 1946 and 1989 in milling facilities, but never underground or in open pit mines. Mortality follow-up was from 1946 to 2008, accumulating 158,383 person-years at risk. Cumulative exposure to radon progeny in working level months (WLM) (mean = 8, max = 127), long-lived radionuclides from uranium ore dust in kBqh/m{sup 3} (mean = 3.9, max = 132), external gamma radiation in mSv (mean = 26, max = 667) and silica dust was estimated by a comprehensive job-exposure matrix. Internal Poisson regression models were applied to estimate the linear excess relative risk (ERR) per unit of cumulative exposure. Overall, a total of 457, 717 and 111 deaths occurred from malignant cancer, cardiovascular diseases and non-malignant respiratory diseases, respectively. Uranium ore dust and silica dust were not associated with mortality from any of these disease groups. A statistically significant relationship between cumulative radon exposure and mortality from all cancers (ERR/100 WLM = 1.71; p = 0.02), primarily due to lung cancer (n = 159; ERR/100 WLM = 3.39; p = 0.05), was found. With respect to cumulative external gamma radiation, an excess of mortality of solid cancers (n = 434; ERR/Sv = 1.86; p = 0.06), primarily due to stomach cancer (n = 49, ERR/Sv = 10.0; p = 0.12), was present. The present findings show an excess mortality from lung cancer due to radon exposure and from solid cancers due to external gamma radiation in uranium millers that was not statistically significant. Exposure to uranium was not associated with any cause of death, but absorbed organ doses were estimated to be low.

  17. Mortality from internal and external radiation exposure in a cohort of male German uranium millers, 1946-2008

    International Nuclear Information System (INIS)

    Kreuzer, M.; Dufey, F.; Schnelzer, M.; Sogl, M.; Walsh, L.; Nowak, D.

    2015-01-01

    To examine exposure-response relationships between ionizing radiation and several mortality outcomes in a subgroup of 4,054 men of the German uranium miner cohort study, who worked between 1946 and 1989 in milling facilities, but never underground or in open pit mines. Mortality follow-up was from 1946 to 2008, accumulating 158,383 person-years at risk. Cumulative exposure to radon progeny in working level months (WLM) (mean = 8, max = 127), long-lived radionuclides from uranium ore dust in kBqh/m 3 (mean = 3.9, max = 132), external gamma radiation in mSv (mean = 26, max = 667) and silica dust was estimated by a comprehensive job-exposure matrix. Internal Poisson regression models were applied to estimate the linear excess relative risk (ERR) per unit of cumulative exposure. Overall, a total of 457, 717 and 111 deaths occurred from malignant cancer, cardiovascular diseases and non-malignant respiratory diseases, respectively. Uranium ore dust and silica dust were not associated with mortality from any of these disease groups. A statistically significant relationship between cumulative radon exposure and mortality from all cancers (ERR/100 WLM = 1.71; p = 0.02), primarily due to lung cancer (n = 159; ERR/100 WLM = 3.39; p = 0.05), was found. With respect to cumulative external gamma radiation, an excess of mortality of solid cancers (n = 434; ERR/Sv = 1.86; p = 0.06), primarily due to stomach cancer (n = 49, ERR/Sv = 10.0; p = 0.12), was present. The present findings show an excess mortality from lung cancer due to radon exposure and from solid cancers due to external gamma radiation in uranium millers that was not statistically significant. Exposure to uranium was not associated with any cause of death, but absorbed organ doses were estimated to be low.

  18. El investigador como educador musical y como divulgador

    Directory of Open Access Journals (Sweden)

    Suárez-Pajares, Javier

    2000-05-01

    Full Text Available La presente ponencia trataba de plantear en la Mesa redonda "Investigación aplicada a la educación musical" una serie de problemas que surgen no tanto a quienes se dedican profesionalmente a la educación musical, sino a quienes, dedicados a la investigación y al estudio de temas relacionados con la historia de la música desde perspectivas diversas, tienen finalmente que transmitirlos a una audiencia determinada, ya sea otros colegas, alumnos de universidad, u otros públicos en los que se centra el concepto "divulgación" aludido en el título.Se incide particularmente en los problemas de la educación musical universitaria para no especialistas y en la divulgación científica aplicada a la música, un campo casi yermo sobre el que hay mucho que reflexionar: desde las nuevas posibilidades para la explicación de la música que ofrecen soportes nuevos como el CD-Rom, hasta las tradicionales formas de relación con un público melómano a través de notas a programas y críticas de conciertos.

  19. Level II scour analysis for Bridge 18 (SHEFTH00410018) on Town Highway 41, crossing Millers Run, Sheffield, Vermont

    Science.gov (United States)

    Wild, Emily C.; Boehmler, Erick M.

    1997-01-01

    This report provides the results of a detailed Level II analysis of scour potential at structure SHEFTH00410018 on Town Highway 41 crossing Millers Run, Sheffield, Vermont (figures 1–8). A Level II study is a basic engineering analysis of the site, including a quantitative analysis of stream stability and scour (U.S. Department of Transportation, 1993). Results of a Level I scour investigation also are included in Appendix E of this report. A Level I investigation provides a qualitative geomorphic characterization of the study site. Information on the bridge, gleaned from Vermont Agency of Transportation (VTAOT) files, was compiled prior to conducting Level I and Level II analyses and is found in Appendix D. The site is in the White Mountain section of the New England physiographic province in northeastern Vermont. The 16.2-mi2 drainage area is in a predominantly rural and forested basin. In the vicinity of the study site, the surface cover is grass upstream and downstream of the bridge while the immediate banks have dense woody vegetation. In the study area, Millers Run has an incised, straight channel with a slope of approximately 0.01 ft/ft, an average channel top width of 50 ft and an average bank height of 6 ft. The channel bed material ranges from sand to boulder with a median grain size (D50) of 50.9 mm (0.167 ft). The geomorphic assessment at the time of the Level I and Level II site visit on August 1, 1995, indicated that the reach was laterally unstable, which is evident in the moderate to severe fluvial erosion in the upstream reach. The Town Highway 41 crossing of the Millers Run is a 30-ft-long, one-lane bridge consisting of a 28-foot steel-stringer span (Vermont Agency of Transportation, written communication, March 28, 1995). The opening length of the structure parallel to the bridge face is 22.2 ft. The bridge is supported by vertical, concrete abutments with wingwalls. The channel is skewed approximately 20 degrees to the opening. The computed

  20. Miller Fisher Syndrome

    Science.gov (United States)

    ... more information, write to the GBS/CIDP Foundation International The Holly Building 104 1 / 2 Forrest Avenue, Narberth PA 19072 or call 1-886-224-3301 (610) 667-0131 Fax (610) 667-7036 www.gbs-cidp.org email: info@gbs-cidp.org Your tax deductible contribution to help us help others will ...

  1. Kodukoharaamatud / Voldemar Miller

    Index Scriptorium Estoniae

    Miller, Voldemar, 1911-2006

    1996-01-01

    Virve Orav. Narva-Jõesuu kodu-uurija pilguga. 1993. Helmut Elstrok. Padaorust Viru mereni. Viru-Nigula - Tln., 1994. Helmut Elstrok. Kõrvemaast Põhjarannani. Kuusalu - Tln.-Tapa, 1995. Lembit Arulo. Nii see olla võis... Põhjaranniku külaelust läbi aegade. Tln., 1994. Robert Nerman. Kopli. Miljöö, olustik, kultuurilugu 1918-1940. Tln., 1995. Ain Sarv. Varjusurmast tõusnud. Eestirootslaste ja Eestirootsi alade saatusest pärast Teist maailmasõda, Tln., 1994. Jaan Ellen. Kuhu kõik nad jäid? Tõsilugu Urvaste ürgorust. Tln., 1994

  2. A survey for potential biological control agents of Pereskia aculeata Miller (Cactaceae) in Brazil reveals two new species of Horismenus Walker (Hymenoptera: Eulophidae).

    Science.gov (United States)

    Pikart, Tiago G; Costa, Valmir A; Hansson, Christer; Cristo, Sandra C DE; Vitorino, Marcelo D

    2017-05-30

    This paper deals with the description of two new species of Horismenus Walker (Hymenoptera: Eulophidae) from Brazil, parasitoids of larvae of Adetus analis (Haldeman) (Coleoptera: Cerambycidae). Both species are similar to Horismenus steirastomae (Girault), a species that also parasitizes cerambycids. Adetus analis is a pest of Sechium edule (Jacq.) Swartz (Cucurbitaceae), a minor crop in Brazil, Argentina and U.S.A., but also feeds in stems of Pereskia aculeata Miller (Cactaceae), an ornamental plant that has become a problematic weed species in Africa, where it was introduced. The two new Horismenus species are described, diagnosed, and compared to H. steirastomae.

  3. La lengua inglesa como neolengua

    Directory of Open Access Journals (Sweden)

    Fernando BELTRÁN LLAVADOR

    2009-11-01

    Full Text Available RESUMEN: El artículo examina algunos usos y abusos de la lengua inglesa en la actualidad en el contexto de la globalización. Se define la neolengua, se ofrecen similitudes de la misma en el lenguaje publicitario en España, se trazan sus orígenes y se apuntan algunos antecedentes en la historia de la literatura inglesa, al tiempo que se ilustran ejemplos de variantes contemporáneas de la misma bajo la denominación de «nukespeak», especialmente abundantes en el discurso de los conflictos bélicos. La lengua inglesa está indisociablemente unida a complejos factores de orden económico, tecnológico y cultural que afectan a su misma morfología. Por otra parte, la presencia ubicua de la lengua inglesa, como idioma global, opera sobre las estructuras de sentimiento, pensamiento y acción de los ciudadanos en todo el mundo. Para los profesionales de la enseñanza del idioma inglés, ello comporta la obligación de discernir y resistir sus efectos potencialmente perversos al tiempo que siguen promoviendo sus valiosos beneficios culturales.ABSTRACT: Contemporary uses and abuses of the English language are examined in the context of complex issues and globalization trends. The term «newspeak» is defined, similitudes of it are found today in the language of advertising in Spain, its origins are traced back and antecedents are located in the history of English literature, while the presence of new modalities of the Orwellian reductionist language, such as «nukespeak», is illustrated within the language of warfare. The English language is inextricably bound up with economical, technological and cultural factors which affect its very morphology just as much as the pervasive influence of English as a global language affects the structures of feeling, thought and action of citizens all over the world, which poses an obligation on the part of EFL teachers to discern and resist its ill effects while they promote its still highly valuable cultural

  4. Como responder ao momento presente?

    Directory of Open Access Journals (Sweden)

    Maria Filomena Molder

    2013-12-01

    Full Text Available http://dx.doi.org/10.5007/1984-784X.2013v13n19p13 Foi com esta pergunta — já um efeito de um primeiro encontro entre Irene Pimentel e eu própria — que decidimos desafiar colegas, estudantes e funci­onários da nossa Faculdade, FCSH (Faculdade de Ciências Sociais e Huma­nas, de outras Faculdades da Universidade Nova de Lisboa, de outras Uni­versidades e todos os interessados em con­siderar e discutir em comum aquilo que se passava em Portugal e que no anúncio da Jornada de 6 de De­zembro de 2012 se descrevia como um “processo de desmantela­mento social, económico e cultural sem precedentes — pese embora tantas compara­ções, baseadas na premissa da ‘eterna repetição’ — e cujas consequências não param de exceder as previsões dos responsáveis por esse desmantelamento”. Acedendo com todo o empenho e gratidão ao convite que me foi dirigido por Humberto Brito para fazer uma resenha da Jornada a publicar no primeiro número de Forma de Vida (saúdo a revista e o título, decidi-me, no entanto, a pôr de lado a resenha, que sob a forma de “Editorial” será em breve publi­cada no blogue Responder ao Momento Presente, entre­tanto criado, conjuntamente com os textos escritos pelos nossos convidados, com as parti­cipações de pessoas que corresponderam ao nosso apelo e ainda com contri­bui­ções que se alargaram para lá da Jornada; a que se juntará uma gravação em video, também disponível no Youtube.   Texto publicado originalmente em Forma de Vida, Lisboa, n.1, fev. 2013. Agrade­cemos à autora por permitir a republicação neste número do Boletim. [N.E.

  5. Chemical Analysis of a "Miller-Type" Complex Prebiotic Broth. Part II: Gas, Oil, Water and the Oil/Water-Interface

    Science.gov (United States)

    Scherer, Sabrina; Wollrab, Eva; Codutti, Luca; Carlomagno, Teresa; da Costa, Stefan Gomes; Volkmer, Andreas; Bronja, Amela; Schmitz, Oliver J.; Ott, Albrecht

    2017-12-01

    We have analyzed the chemical variety obtained by Miller-Urey-type experiments using nuclear magnetic resonance (NMR) spectroscopy and coherent anti-Stokes Raman scattering (CARS) spectroscopy, gas chromatography followed by mass spectrometry (GC/MS) and two-dimensional gas chromatography followed by mass spectrometry (GCxGC/MS). In the course of a running Miller-Urey-type experiment, a hydrophobic organic layer emerged besides the hydrophilic aqueous phase and the gaseous phase that were initially present. The gas phase mainly consisted of aromatic compounds and molecules containing C≡ C or C≡ N triple bonds. The hydrophilic phase contained at least a few thousands of different molecules, primarily distributed in a range of 50 and 500 Da. The hydrophobic phase is characterized by carbon-rich, oil-like compounds and their amphiphilic derivatives containing oxygen with tensioactive properties. The presence of a wide range of oxidized molecules hints to the availability of oxygen radicals. We suggest that they intervene in the formation of alkylated polyethylene glycol (PEG) in the oil/water interface. CARS spectroscopy revealed distinct vibrational molecular signatures. In particular, characteristic spectral bands for cyanide compounds were observed if the broth was prepared with electric discharges in the gaseous phase. The characteristic spectral bands were absent if discharges were released onto the water surface. NMR spectroscopy on the same set of samples independently confirmed the observation. In addition, NMR spectroscopy revealed overall high chemical variability that suggests strong non-linearities due to interdependent, sequential reaction steps.

  6. Chemical Analysis of a "Miller-Type" Complex Prebiotic Broth : Part II: Gas, Oil, Water and the Oil/Water-Interface.

    Science.gov (United States)

    Scherer, Sabrina; Wollrab, Eva; Codutti, Luca; Carlomagno, Teresa; da Costa, Stefan Gomes; Volkmer, Andreas; Bronja, Amela; Schmitz, Oliver J; Ott, Albrecht

    2017-12-01

    We have analyzed the chemical variety obtained by Miller-Urey-type experiments using nuclear magnetic resonance (NMR) spectroscopy and coherent anti-Stokes Raman scattering (CARS) spectroscopy, gas chromatography followed by mass spectrometry (GC/MS) and two-dimensional gas chromatography followed by mass spectrometry (GCxGC/MS). In the course of a running Miller-Urey-type experiment, a hydrophobic organic layer emerged besides the hydrophilic aqueous phase and the gaseous phase that were initially present. The gas phase mainly consisted of aromatic compounds and molecules containing C≡C or C≡N triple bonds. The hydrophilic phase contained at least a few thousands of different molecules, primarily distributed in a range of 50 and 500 Da. The hydrophobic phase is characterized by carbon-rich, oil-like compounds and their amphiphilic derivatives containing oxygen with tensioactive properties. The presence of a wide range of oxidized molecules hints to the availability of oxygen radicals. We suggest that they intervene in the formation of alkylated polyethylene glycol (PEG) in the oil/water interface. CARS spectroscopy revealed distinct vibrational molecular signatures. In particular, characteristic spectral bands for cyanide compounds were observed if the broth was prepared with electric discharges in the gaseous phase. The characteristic spectral bands were absent if discharges were released onto the water surface. NMR spectroscopy on the same set of samples independently confirmed the observation. In addition, NMR spectroscopy revealed overall high chemical variability that suggests strong non-linearities due to interdependent, sequential reaction steps.

  7. “A source of satisfaction to all Jews, wherever they may be living”. Louis Miller between New York and Tel Aviv, 1911

    Directory of Open Access Journals (Sweden)

    Ehud Manor

    2011-10-01

    Full Text Available Although throughout the middle-ages Jews used to live in urban environment more than non-Jews, urbanization process in the 19th century was as critical to Jewish modern history as in other cases. Modernization, in all aspects, had a deep impact on Jewish demography, socio-economic life and self understanding. On the same time Jews were immigrating by the millions to the “new world” (mainly to the United States, a small current of Jews was heading to Palestine (Eretz Israel if to use their specific term. As opposed to a common understanding of Zionism, the future city and the neo-urbanization of the Jews – and not only the new villages (Moshavot, Kibbutzim, Moshavim – was a main Zionist goal. This article describes one of the first comprehensive observations of these issues, as seen from the eyes of Louis Miller, himself a Jewish immigrant that settled in the outmost city of the modern world: New York. In 1911 he paid a visit to the one-year-old Tel Aviv, and managed to see in this new modest garden-city the cradle of the Zionist revolution. Not less important: Miller understood as early as 1911, the crucial role Jewish settlements in Palestine would have in the crystallization of modern Jewish peoplehood. Tel Aviv took major part in this development. It still does.

  8. Fungi associated with base rot disease of aloe vera (Aloe ...

    African Journals Online (AJOL)

    STORAGESEVER

    2008-12-17

    Dec 17, 2008 ... full base rot disease after 6 days of inoculation. Key words: Fungi, base rot, Aloe vera. INTRODUCTION. Aloe barbadensis Miller, popularly called Aloe vera is a phanerogame angiosperm which belongs to the family. Liliaceae. The plant is a perennial drought resistant succulent plant (Figure 1). Aloe vera is ...

  9. Aloe Vera

    Science.gov (United States)

    ... Health Topics A-Z # A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Aloe Vera Share: On This Page Background How Much Do ... Supplement Subset Web ... extract of Aloe barbadensis Miller (aloe vera) in F344/N rats . Toxicological Sciences. 2013;131( ...

  10. Serum glucose and lipid levels in alloxan-induced diabetic rats ...

    African Journals Online (AJOL)

    Effect of Aloe barbadensis Miller juice extract on serum glucose and lipids in alloxan-induced diabetic rats was investigated. Diabetes was induced by intraperitoneal injection of 150mg/kg alloxan in 5% solution. Diabetes was confirmed 72 hours after alloxan injection, if fasting blood glucose (FBG) was equal to or greater ...

  11. Comparative study of antimicrobial activities of Aloe vera extracts ...

    African Journals Online (AJOL)

    Plants are of relevance to dermatology for both their beneficial and adverse effects on skin and skin disorders. One of the medicinal plants, Aloe vera (Aloe barbadensis Miller), is reputed to have medicinal properties. For centuries, it has been used for an array of ailments such as mild fever, wounds and burns, ...

  12. La sabidur?a como competencia gerencial

    OpenAIRE

    Pinzon-Barrios, Ana-Maria; Cort?s Zapata, Gabriela

    2012-01-01

    Aunque el concepto de sabidur?a ha sido ampliamente estudiado por expertos de ?reas como la filosof?a, la religi?n y la psicolog?a, a?n enfrenta limitaciones en cuanto a su definici?n y evaluaci?n. Por esto, el presente trabajo tiene como objetivo, formular una definici?n del concepto de sabidur?a que permita realizar una propuesta de evaluaci?n del concepto como competencia en los gerentes. Para esto, se realiz? un an?lisis documental de tipo cualitativo. De esta manera, se analizaron divers...

  13. Los ritmos como terapia para la impulsividad

    Directory of Open Access Journals (Sweden)

    Mónica Triviño

    2012-10-01

    Full Text Available Investigaciones recientes muestran que el uso de patrones rítmicos facilita la respuesta óptima en el tiempo, por lo que el entrenamiento mediante ritmos podría proponerse como terapia novedosa ante problemas como la impulsividad. Esto podría beneficiar a pacientes con daño prefrontal o personas con trastorno por déficit de atención e hiperactividad (TDAH, que suelen mostrar conductas impulsivas, así como dificultad para estimar el paso del tiempo.

  14. La transparencia como objetivo del desarrollo sostenible

    OpenAIRE

    Juan José Gilli

    2017-01-01

    El presente trabajo tiene por propósito precisar el significado de la transparencia en la gestión pública como una exigencia de carácter ético relacionada con la información que los agentes deben dar en el ámbito sus funciones, reconociendo al ciudadano como el dueño de la información que producen y guardan. La transparencia tiene un especial valor como herramienta para combatir la corrupción y, de esa forma, contribuir a la meta de lograr instituciones inclusivas y efectivas para el desarrol...

  15. La universidad como organización

    Directory of Open Access Journals (Sweden)

    Luis Aurelio Ordoñez Burbano

    2001-07-01

    Full Text Available El presente artículo versa sobre la unviersidad como organización y tiene como objetivo hacer una reflexión sobre la misión de la universidad colombiana en el marco de diversos entornos. Como punto de partida, se propone una precisión sobre la misión de la universidad moderna y la investigación, a diferencia de la universidad colonial y decimonónica limitada a la divulgación de conocimientos preexistentes.

  16. Carolee Schneemann. El cine como autobiografía, la artista como actriz, el cuerpo como pincel

    Directory of Open Access Journals (Sweden)

    María Barbaño González-Moreno

    2017-10-01

    Full Text Available Este trabajo analiza la relación de cine y mujer a partir de la obra fílmica de Carolee Schneemann, principalmente de su obra autobiográfica Fuses (1964-1966. Desde ella, se plantea el papel de la artista como productora, directora y protagonista principal de todas sus obras. Reflexionamos así sobre el rol del creador-director como actor que derivaría en la consecución de una obra cinematográfica de tintes necesariamente autobiográficos. Asumiendo la visión vanguardista del cine como diario personal/Entendido el cine como diario personal, Schneemann va a explorar en su obra diferentes aspectos de la identidad y la sexualidad de la mujer en un cine artístico, alternativo y de tendencia política feminista. Entendido/Asumido su cine como elemento plástico, la artista explorará de forma paralela la experimentación matérica y física a través de los cuerpos filmados así como de la propia materialidad de la película, excluyendo toda posibilidad narrativa, dramática e ilusoria de proyección del espectador en el espacio cinematográfico y el espacio privado del creador.

  17. El videojuego como material educativo: La Odisea

    Directory of Open Access Journals (Sweden)

    Belén Mainer Blanco

    2012-04-01

    Full Text Available La investigación se basa en la función educativa que pueden cumplir los videojuegos, un campo que consideramos inexplorado por tres motivos principalmente: su reciente incorporación, su impopularidad educativa (el rechazo el videojuego como herramienta de aprendizaje y considerado, por el contrario, como una distracción, y la incompleta incorporación de las nuevas tecnologías de información y comunicación (TIC en el ámbito familiar y educativo. En una segunda parte, se ha realizado una aplicación práctica tomando como referencia la gran obra universal “La Odisea”, cuya intención es mostrar la utilidad del videojuego como complemento educativo.

  18. El Derecho como argumentación

    Directory of Open Access Journals (Sweden)

    Atienza, Manuel

    1999-11-01

    Full Text Available Not available

    Frente a las concepciones del Derecho como norma, como hecho o como valor (que caracterizan, respectivamente, al norrnativismo, al realismo jurídico y al iusnaturalismo, se propone aquí un cuarto enfoque que consiste en ver el Derecho como argumentación (y que cohra especial relevancia en las sociedades democráticas. Sin embargo, no hay una única forma de entender la argumentación jurídica. Aunque conectadas entre sí, en el trabajo se distinguen tres concepciones: la formal, la material y la pragmática o dialéctica; muchas cuestiones que se plantean en el ámbito de la teoría de la argumentación jurídica pueden resolverse -o aclararse- teniendo en cuenta esa triple perspectiva.

  19. La sangre como espectáculo.

    Directory of Open Access Journals (Sweden)

    Rubén Darío Buitrón

    2015-01-01

    Full Text Available El autor asevera que cuando la información es concebida y tratada como una mercancía y no como un bien social, la avidez por el lucro la degenera en productos abyectos donde la sangre es espectáculo que sirve para exacerbar el morbo social, incrementar las ventas y los ingresos publicitarios. Señala que lamentablemente en el Ecuador este tipo de periodismo es una plaga muy bien vendida.

  20. Las leyendas regionales como intangibles territoriales

    Directory of Open Access Journals (Sweden)

    Eloy Martos Núñez

    2015-01-01

    Full Text Available El artículo examina el concepto de leyenda como intangible territorial en diversas escalas, desde la local a la regional o nacional, y su relación con la construcción de mitos étnicos y la emergencia de tradiciones translocales. Para ello, se revisan la metodología de los estudios corográficos y las nociones de ecotipo y de paisaje cultural, así como la etnografía de los territorios simbólicos a la luz de conceptos como el clásico «témenos» y modernos como el «mytho-moteur» (Abadal, 1958. Se aplican estudios de casos que evidencian cómo es el Imaginario, en interacción con factores geohistóricos del lugar, el que a menudo acota y perimetrea un territorio a través de cauces como la fabulación legendaria y los ritos paralitúgicos, como procesiones o peregrinaciones. La conclusión es que las leyendas y los arquetipos de origen étnico y genealógico reescriben tradiciones que crean identidades y se pueden proyectar en ámbitos diferentes de la vida política o recreativa, con perfiles igualmente diferentes.

  1. The Effect of Salinity Stress on the Growth, quantity and quality of Essential oil of Lavender (Lavandula angustifulia Miller

    Directory of Open Access Journals (Sweden)

    sarah khorasaninejad

    2017-02-01

    Full Text Available Introduction: Plants are usually exposed to different environmental stresses which limit their growth and productivity as well as cause considerable loss of worldwide agricultural production. One of the most important factors affecting plant and production of secondary metabolites is the salt stress. Salinity of soil or water is one of major stress, obstacles to increase production in plant growing areas throughout the world and especially in arid and semi-arid regions it can severely limit plant production. Iran is among the world's arid and semi-arid land, and faces water resources shortage and saline lands. According to the concept of sustainable development and role of Agriculture, using saline water and soil resources seems mandatory. Recently, medicinal and aromatic plants have received much attention in several fields such as agroalimentary, perfumes, pharmaceutical industries and natural cosmetic products. Although, secondary metabolites in the medicinal and aromatic plants were fundamentally produced by genetic processing, but, their biosynthesis are strongly influenced by environmental factors. It means that biotic and abiotic environmental factors affect growth parameter, essential oil yield and constituents. Abiotic environmental stresses, especially salinity and drought have the most effect on medicinal plant. Medicinal plants cultivation is one of ways to exploit these resources. Essential oils help to easier adapt to the environmental stress conditions. Also, essential oils are not constantly in the quantitative and qualitative terms. They are changing continuously, due to the requirements of the environment, and to individual survival. The different results were dedicated from the effect of salinity stress on the quantitative and qualitative parameters. Lavender (Lavandula angustifulia Miller is a perennial woody medicinal plant that cultivated for its an essential oil in leafs and flowers. Major parts of Lavender produces

  2. Better P-curves: Making P-curve analysis more robust to errors, fraud, and ambitious P-hacking, a Reply to Ulrich and Miller (2015).

    Science.gov (United States)

    Simonsohn, Uri; Simmons, Joseph P; Nelson, Leif D

    2015-12-01

    When studies examine true effects, they generate right-skewed p-curves, distributions of statistically significant results with more low (.01 s) than high (.04 s) p values. What else can cause a right-skewed p-curve? First, we consider the possibility that researchers report only the smallest significant p value (as conjectured by Ulrich & Miller, 2015), concluding that it is a very uncommon problem. We then consider more common problems, including (a) p-curvers selecting the wrong p values, (b) fake data, (c) honest errors, and (d) ambitiously p-hacked (beyond p < .05) results. We evaluate the impact of these common problems on the validity of p-curve analysis, and provide practical solutions that substantially increase its robustness. (c) 2015 APA, all rights reserved).

  3. Acetylcholine suppresses shoot formation and callusing in leaf explants of in vitro raised seedlings of tomato, Lycopersicon esculentum Miller var. Pusa Ruby.

    Science.gov (United States)

    Bamel, Kiran; Gupta, Rajendra; Gupta, Shirish C

    2016-06-02

    We present experimental evidence to show that acetylcholine (ACh) causes decrease in shoot formation in leaf explants of tomato (Lycopersicon esculentum Miller var Pusa Ruby) when cultured on shoot regeneration medium. The optimum response was obtained at 10(-4) M ACh-enriched medium. ACh also causes decrease in percentage of cultures forming callus and reduces the callus mass. Inhibitors of enzymatic hydrolysis of ACh, neostigmine and physostigmine, also suppresses callogenesis and caulogenesis. On the other hand, the breakdown products of Ach, choline and acetate, do not alter the morphogenic response induced on the shoot regeneration medium. Neostigmine showed optimal reduction in shoot formation at 10(-5) M. The explants cultured on neostigmine augmented medium showed decline in the activity of ACh hydrolyzing enzyme acetylcholinesterase. ACh and neostigmine added together showed marked reduction in callus mass. These results strongly support the role of ACh as a natural regulator of morphogenesis in tomato plants.

  4. Jewishness and Judaism revisited in two Short Stories by Arthur Miller: "Monte Sant' Angelo" and "I Don't Need You Anymore"

    OpenAIRE

    Desafy-Grignard, Christiane

    2008-01-01

    Le présent article étudie deux nouvelles d'Arthur Miller. Dans la première, "Le Mont Saint Angel, l'auteur livre–fait presque unique dans son œuvre–sous le couvert d'un personnage qu'on reconnaît aisément comme étant autobiographique, son rapport personnel à sa judéité. Dans la seconde, "Je n'ai plus besoin de toi," par le même biais autobiographique mais de manière plus subtile, il nous fait percevoir l'héritage spirituel fondamental que lui a laissé le Judaïsme.

  5. TOURISM AS REFLECTED IN TRAVELLING WOMEN: A COMPARATIVE CULTURAL STUDY ON THE NOVELS OF DAISY MILLER, A PASSAGE TO INDIA, AND PADA SEBUAH KAPAL

    Directory of Open Access Journals (Sweden)

    Sri Hartiningsih

    2012-11-01

    Full Text Available Travelling has occurred since a long time ago. Travelling is not only done by men butalso by women. In relation to travelling, travelling done by women is examined, especially thelandlady’s environment, as there is a relationship between the host and the guest. The researchproblems are (1 how is reflection of tourism in the travelling women portrayed on the novels ofDaisy Miller, A Passage to India, and Pada Sebuah Kapal?. (2 How are motivating andattracting factors related to tourism as reflected in the travelling women articulated on the novelsof Daisy Miller, A Passage to India, and Pada Sebuah Kapal?. (3 How do cultural barriersoccur in tourism as reflected in the travelling women on Daisy Miller, a Passage to India, andPada Sebuah Kapal novel? In general, this research is to find out the comparison of travellingdone by women. Specifically, it is to discover the reflection of tourism, how the motivating andattracting factors and cultural barriers occur in tourism as reflected in the travelling done bywomen.This research is conducted on three novels, Daisy Miller written by Henry James, APassage To India by E.M. Forster, and Pada Sebuah Kapal by NH. Dini called comparativeliterature showing the continents of America, Europe and Asia. Discussing the three continents,this research is called global literature. Hermeneutic method was used to interpret the content ofthose three novels by employing deconstruction, postcolonial and feminism theories. The maindata were taken from those novels and the location of the research was both at private librariesand state libraries or institutions and websites. To support the main data, secondary data werealso needed, which in this case, were obtained by interviewing the women who have travelledabroad. Then the results were formally and informally presented.The findings show that the reflection of tourism in travelling done by women is representedby family companion, and that the means of transportation to

  6. Acetylcholine suppresses shoot formation and callusing in leaf explants of in vitro raised seedlings of tomato, Lycopersicon esculentum Miller var. Pusa Ruby

    Science.gov (United States)

    Bamel, Kiran; Gupta, Rajendra; Gupta, Shirish C.

    2016-01-01

    ABSTRACT We present experimental evidence to show that acetylcholine (ACh) causes decrease in shoot formation in leaf explants of tomato (Lycopersicon esculentum Miller var Pusa Ruby) when cultured on shoot regeneration medium. The optimum response was obtained at 10−4 M ACh-enriched medium. ACh also causes decrease in percentage of cultures forming callus and reduces the callus mass. Inhibitors of enzymatic hydrolysis of ACh, neostigmine and physostigmine, also suppresses callogenesis and caulogenesis. On the other hand, the breakdown products of Ach, choline and acetate, do not alter the morphogenic response induced on the shoot regeneration medium. Neostigmine showed optimal reduction in shoot formation at 10−5 M. The explants cultured on neostigmine augmented medium showed decline in the activity of ACh hydrolyzing enzyme acetylcholinesterase. ACh and neostigmine added together showed marked reduction in callus mass. These results strongly support the role of ACh as a natural regulator of morphogenesis in tomato plants. PMID:27348536

  7. Réponse à Mme DESAFY-GRIGNARD au sujet de son ouvrage Arthur Miller : une vie à l’œuvre

    Directory of Open Access Journals (Sweden)

    Trudy Bolter

    2006-11-01

    Full Text Available RÉPONSE à Mme DESAFY-GRIGNARD 
au sujet de son ouvrage Arthur Miller : une vie à l’oeuvre


 Un compte rendu n’est pas forcément un résumé neutre : rien ne m’oblige à répéter en l’étoffant la quatrième page de couverture de l'ouvrage. « Lu par ... » dit bien qu'il s'agit d'une vision personnelle. J’avoue que j’ai lu ce livre avec surprise, une émotion très vive, pas toujours très positive. Je conteste certaines approches, qui m’apparaissent approximatives, pas assez complètes , quelques tourn...

  8. La realidad como materia novelable: Alejo Carpentier

    Directory of Open Access Journals (Sweden)

    Raquel Arias Careaga

    2007-12-01

    Full Text Available Desde que en 1897 Benito Pérez Galdós defendiera como materia prima legítima de la literatura «la vida misma, de donde el artista saca las ficciones que nos instruyen y embelesan» (Pérez Galdós, 1990: 159, el realismo como instrumento de indagación y análisis de la sociedad no ha dejado de crecer y expandirse. Realismo crítico, como este de Galdós, que implica una ampliación del concepto chato de «realidad», incluyendo en ella «recuerdos, sueños, imaginación, locura, símbolos» para contribuir a la formación de un «realismo total» (Rodríguez Puértolas, 2000, II: 93, al que se une también la asimilación de enseñanzas esenciales como la que representa la narrativa de Cervantes: La novelística de Galdós hunde sus raíces en el mejor Cervantes, como puede verse en su peculiar sentido del humor y de la ironía, en la concepción perspectivista de la realidad y en tantas otras cosas, algunas de ellas en verdad fundamentales. Así el concepto de la Naturaleza y sus relaciones dialécticas con el ser humano; así el Amor como elemento vital y animador del orden cósmico, muy alejado del idealismo vulgar romántico (Ibid., 93.

  9. A Imagem como Ruína

    Directory of Open Access Journals (Sweden)

    Míriam Volpe

    2001-12-01

    Full Text Available O dialogismo ente o filme Citizen Kane, de Orson Welles, e o poema “Kubla Khan”, de S.T. Coleridgé, é analisado, sendo evidenciados não só o tema em comum – o mito do Paraíso perdido – como também a similariedade na organização do disurso na justaposição das images, como fragmentos da memória a serem preservados.

  10. Los rincones como contextos significativos de aprendizaje

    OpenAIRE

    Sánchez Molero, María Luisa

    2016-01-01

    En el presente trabajo se pretende hacer un estudio sobre los rincones de trabajo en el aula de Educación Infantil, describiéndolos como modelo de organización del espacio y como estrategia metodológica que aboga por un aprendizaje socioconstructivista. El estudio se completa con la descripción y el análisis de los rincones de un aula específica de un centro escolar, incorporando diversas propuestas de mejora fundamentadas en el previo estudio teórico

  11. PARP-1 como regulador del ciclo celular

    OpenAIRE

    Iglesias Vázquez, Pablo

    2015-01-01

    En el presente estudio hemos querido investigar las implicaciones biológicas de la interacción PARP-1/E2F-1 en escenarios en los que el factor de transcripción E2F-1 resulta de gran importancia como son el desarrollo embrionario y la oncogénesis. En este respecto, hemos demostrado que tanto PJ34, inhibidor de la actividad enzimática de PARP, como gosipol, inhibidor de las interacciones proteína-proteína, son capaces de reducir la actividad transcripcional de E2F-1 y la proli...

  12. Dibujo infantil como medio de diagnostico

    OpenAIRE

    González Hernando, Elisa

    2015-01-01

    Con este documento se pretende demostrar la importancia que tiene el dibujo infantil en el correcto desarrollo integral de las personas. Se estudia la importancia del dibujo y su valor a la hora de utilizarlo como método de diagnóstico ante determinados aspectos que pueden determinar la vida de una persona. En definitiva lo que se desarrolla en este trabajo de Fin de Grado es el papel que juega el dibujo como herramienta para el seguimiento del desarrollo de los individuos centrándonos ...

  13. La fatiga como estado motivacional subjetivo

    OpenAIRE

    D. Cárdenas; J. Conde-González; J.C. Perales

    2017-01-01

    Actualmente no existe consenso sobre los factores que determinan la aparición de la fatiga. Hay factores que se derivan exclusivamente del esfuerzo físico, otros que dependen del esfuerzo mental que este lleva aparejado, y otros de los resultados de la tarea que se está realizando. Como consecuencia, se han desarrollado diferentes modelos explicativos que pretenden aunar las diferentes razones de su aparición. No obstante, la tendencia actual es entender la fatiga como un estado motivacion...

  14. Quitina y carboximetilquitosana como agentes desintegrantes

    OpenAIRE

    Sol A Fernández Monagas; María D Rodríguez Albadalejo; Ofelia Bilbao Revoredo; Olga M Nieto Acosta

    1998-01-01

    Se realizó un estudio comparativo de la quitina y la carboximetilquitosana como agentes desintegrantes, y se evaluó la influencia ejercida por el método empleado en la elaboración de las tabletas sobre la actividad desintegrante de ambos polímeros. La quitina presentó buenas características como agente desintegrante independientemente del método utilizado en la elaboración de las tabletas, mientras que la actividad desintegrante de la carboximetilquitosana fue afectada por el proceso de granu...

  15. Heidegger E A Técnica Moderna Como Perigo E Como Salvação

    Directory of Open Access Journals (Sweden)

    Robson Costa Cordeiro

    2014-04-01

    Full Text Available O mundo contemporâneo é marcado por uma compreensão de técnica que se ergue como tal a partir de um sentido próprio e autônomo. Este sentido pode ser caracterizado como um logos que se constitui a partir de sua própria natureza e se manifesta como tecnologia no decorrer da história. Compreender esse sentido e assumi-lo como condição de nossa existência no mundo é comprender a técnica como nossa herança e nosso envio. Nesse sentido, compreender a essência da técnica é fundamental para o mundo contemporâneo, assumindo que, nesse processo, consiste o perigo e a salvação da espécie.

  16. Morfo-anatomia do fruto (hipanto, pericarpo e semente em desenvolvimento de Pereskia aculeata Miller (Cactaceae - DOI: 10.4025/actascibiolsci.v25i2.2046 Morphology and anatomy of the fruit (hypanthium, pericarp and seed development of Pereskia aculeate Miller (Cactaceae

    Directory of Open Access Journals (Sweden)

    Sonia Maciel da Rosa

    2003-04-01

    Full Text Available O desenvolvimento do fruto (hipanto, pericarpo e semente de Pereskia aculeata Miller é analisado desde a flor em antese até a maturidade. A flor é perígina e apresenta no hipanto bractéolas verdes e acúleos. O fruto é pomáceo, tipo cactídio e caracteriza-se por apresentar hipanto carnoso, pericarpo e massa gelatinosa, formada pela destruição parcial do pericarpo e columela, onde estão imersas as sementes. A semente é exotestal e origina-se do óvulo anfítropo, bitegumentado e crassinucelado. A semente apresenta reserva perispérmica e resíduos de endosperma. O embrião é curvo e tem eixo hipocótilo-radicular longo, dois cotilédones com mesofilo homogêneo e plúmula indiferenciadaThe development of Pereskia aculeate Miller fruit (hypanthium, pericarp and seed was analyzed. The flower is perigynous and presents a hypanthium with bracteoles and aculeus. The fruit is pomaceous, type cactídio, with succulent hypanthium, pericarp, and seeds immersed in a gelatinous mass. This gelatinous mass originates from the pericarp and the columella. The seed is exotestal and develops from an amphitropous, bitegmic and crassinucelate ovule. It has perisperm and an endosperm residue. The embryo is curved and is composed of elongated hypocotyl-radicle axis, two cotyledons with uniform mesophyll, and undifferentiated plumule

  17. Wind farm development project at Mount Copper and Miller at Murdochville : public inquiry report; Projets d'amenagement des parcs d'eoliennes des monts Copper et Miller a Murdochville : rapport d'enquete et d'audience publique

    Energy Technology Data Exchange (ETDEWEB)

    Harvie, A.

    2004-03-01

    A public hearing was held at the request of the Quebec Minister of the Environment to examine the environmental and socio-economic impacts of a proposed wind farm project at Mount Copper and Mount Miller in Murdochville, Quebec. The first phase of the project involves the construction of a wind turbine array with a capacity of 9 megawatts (MW), followed by a second phase expansion to 45 MW for 2004. The final wind turbine array includes 36 turbines for a total capacity of 54 megawatts (MW). The region is well suited for wind energy projects. Energie Eolienne du Mont Miller Inc. and Northland Power Inc. intend to develop the wind farm at a cost of approximately $90 million. Hydro Quebec has agreed to purchase the electricity. The various impacts of the proposed project were examined, both from an environmental and a socio-economic perspective. The Commission determined that the wind farm would not have significant impacts and that the project is desirable. Certain conditions must be met to ensure sustainable development. In terms of ecology, the Commission would like to have a complete inventory of the bird species and a description of the corridors of migration. It would also like to see the promoters show leadership in minimizing the impacts of the project on the ecotourism activities offered in the area. 17 refs., 1 tab., 1 fig., 2 appendices.

  18. La biblioteca como editora de contenidos

    Directory of Open Access Journals (Sweden)

    Alonso-Arévalo, Julio

    2015-12-01

    Full Text Available Una de las características más innovadoras de la biblioteca del siglo 21 tiene que ver con la toma de una postura activa frente a la gestión y generación de contenidos. Con la llegada de la Web 2.0 las bibliotecas no sólo siguen salvaguardando y difundiendo información como han venido realizando a lo largo de su historia, también cada vez con más frecuencia crean nueva información con el objetivo de prestar los mejores servicios a sus ciudadanos, a través de recursos y servicios tales como la elaboración guías de investigación, boletines de alerta y novedades, recursos web, información a través de sus blogs, y como administradores de contenidos a través de repositorios y revistas de acceso abierto. Un paso más allá en esta dinámica tienen que ver con la biblioteca como editora y distribuidora de libros, especialmente en el ámbito local, siendo la impulsora, formadora, dinamizador y difusoras de las obras de los autores de su comunidad.

  19. A rota como memória

    Directory of Open Access Journals (Sweden)

    Patrick Fraysse

    Full Text Available No contexto de estudo do patrimônio por um ponto de vista comunicacional, este artigo permitiu-nos visualisar um objeto de comunicação por excelência « a estrada » como portador de informação a decifrar e a interpretar um documento, mas também como um repositário da memória coletiva, quer dizer um monumento. Paralelamente, a patrimonialização dos monumentos, dos conjuntos arquiteturais e sobretudo dos itinerários que os religam, dito de outra maneira, da estrada, assim como a sua documentarização (relatos de viagens, guias, bancos de dados participam de uma nova institucionalização da memória integrante também das estradas míticas como o caminho de São Tiago na França ou a famosa estrada 66 nos Estados-Unidos.

  20. La medicina tradicional como medicina ecocultural

    OpenAIRE

    Aparicio Mena, Alfonso Julio

    2005-01-01

    Los sistemas terap??uticos tradicionales responden a las culturas de los pueblos en los que surgen. En ellos, se concibe la naturaleza ??ntimamente ligada a la tradici??n. Salud es, para los miembros de las culturas tradicionales, bienestar como equilibrio entre el ser humano, la naturaleza, las creencias y la sociedad.

  1. Los patrones de asentamiento como recurso patrimonial

    Directory of Open Access Journals (Sweden)

    Antonio Lista Martín

    2012-12-01

    Full Text Available Los patrones de asentamiento son las pautas con las que distribuyen los diferentes elementos construidos, como casas, caminos, campos, espacios públicos o fábricas, y son una expresión cultural de la sociedad que los construye. Tanto el tipo de elementos, su número como su distribución, dependen del nivel tecnológico, de la estructura social y de su bagaje cultural. Se puede decir, por tanto, que en los patrones estaría reflejado el conocimiento que la sociedad tenia del medio, así como sus anhelos, prioridades e, incluso, sus malas prácticas. La presente comunicación propone que estos patrones puedan servir de base para el planeamiento territorial actual, no sólo preservando aquello que realmente tenga valor, sino incluso recreándolos o reproduciéndolos a otras escalas siempre que puedan aportar un valor añadido al territorio. El escrito plantea una pregunta: ¿Qué se debe mantener de los patrones tradicionales y qué se puede, o incluso se debe, cambiar?, y para responderla en la primera parte se analizan someramente algunos asentamientos-tipo y en la segunda se indican pautas de actuación que han aparecido como propuestas en planes de ordenación territorial en los últimos años.

  2. EL PERIODISMO CIVICO COMO COMUNICACION POLITICA

    Directory of Open Access Journals (Sweden)

    Ana María Miralles C.

    1998-01-01

    Full Text Available La autora retoma el ejercicio del periodismo cívico como el espacio en el cual la formación de la opinión pública adquiere características de un proyecto político dinámico en el que el ciudadano es el ente fundamental.

  3. PENGGUNAAN SKEMA KONVEKTIF MODEL CUACA WRF (BETTS MILLER JANJIC, KAIN FRITSCH DAN GRELL 3D ENSEMBLE (Studi kasus: Surabaya dan Jakarta

    Directory of Open Access Journals (Sweden)

    Roni Kurniawan

    2015-01-01

    Full Text Available Pada kajian ini dilakukan evaluasi penggunaan beberapa skema konvektif pada model WRF (Weather Research and Forecasting untuk prediksi cuaca di wilayah Indonesia. Terdapat tiga skema konvektif yang akan dievaluasi yaitu; skema konvektif cumulus BMJ (Betts Miller Janjic, KF (Kain Fritsch, dan GD (Grell 3D ensemble. Data yang digunakan untuk evaluasi adalah data curah hujan per 3 jam dan data angin per 12 jam (level ketinggian; permukaan, 850, 500, 250 mb dari hasil pengolahan model WRF dan observasi selama periode bulan Agustus 2011 dan Februari 2012 di stasiun Juanda-Surabaya dan Cengkareng-Jakarta. Hasil verifikasi dari tiga skema konvektif pada model WRF terhadap data observasi menunjukkan bahwa untuk prakiraan curah hujan, penggunaan skema konvektif BMJ lebih baik dari skema KF dan GD, dan untuk prakiraan arah dan kecepatan angin skema BMJ dan GD relatif lebih baik dari skema KF. Berdasarkan analisis hasil verifikasi yang diperoleh, pemilihan skema konvektif cumulus BMJ cenderung lebih baik dari skema konvektif KF dan GD untuk di aplikasikan pada model WRF.   In this study, the use of some convective schemes on the model WRF (Weather Research and Forecasting for weather prediction in Indonesian region has been evaluated. There are two models evaluated; BMJ cumulus convective scheme (Betts Miller Janjic, KF (Kain Fritsch, and GD (Grell 3D ensemble. The data used in the evaluation are the 3 hourly rainfall data, and the 12 hourly wind data (level height; surface, 850, 500, 250mb from the WRF models and observation processing during August 2011 and February 2012 period at the Juanda-Surabaya and Cengkareng-Jakarta stations. The results of the verification of the three convective schemes in WRF models against observation data indicate that for precipitation forecasts, the application of the BMJ convective scheme is better than the KF and GD schemes, and for direction and wind speed forecast, BMJ and GD schemes is relatively better than the KF

  4. Evaluation of efficacy of a novel resorbable collagen membrane for root coverage of Miller's Class I and Class II recession in the maxillary anteriors and premolars

    Directory of Open Access Journals (Sweden)

    Krutika Kapare

    2016-01-01

    Full Text Available Background: There are several surgical techniques in literature that have been used to perform root coverage (RC. Currently, the use of a resorbable collagen membrane (RCM as a guided tissue regenerative material is one of the highly sought treatment modalities. The present study aimed at evaluating the clinical outcome of RC in the treatment of Miller's Class I and II recession defects in maxillary anteriors and premolars by coronally advanced flap (CAF with and without RCM. Materials and Methods: This split-mouth study (bilateral buccal recession defects was randomized to include 15 test (CAF + membrane and 15 control (CAF alone sites. Clinical parameters included gingival recession depth (RD, probing pocket depth (PPD, clinical attachment level (CAL, and keratinized tissue height (KTH measured at baseline and 9 months postoperatively. Results: Both test and control groups showed statistically significant (P < 0.05 reductions in RD (1.54 ± 0.46 mm and 1.60 ± 0.07 mm, PPD (0.53 ± 0.15 mm and 0.94 ± 0.10 mm, increase in KTH (0.67 ± 0.90 mm and 0.73 ± 0.14 mm and CAL (1.94 ± 0.27 mm and 2.60 ± 0.19 mm when comparing the 9-month data from baseline. The present study showed that mean improvement in RD was 1.60 ± 0.507 and 1.53 ± 0.64 mm in both test and control groups, respectively. Mean percent RC was 58.33% ±12.19% and 56.22% ±10.22% for test and control groups, respectively. However, there were no statistically significant differences between groups for RD, PPD, KTH, and CAL. Conclusion: The results of this study suggest that both the groups CAF (control and CAF and RCM (test could be successfully used to treat Miller's Class I and II gingival recession defects and also demonstrated an overall significant improvement in all the assessed clinical parameters. However, there was a greater reduction of gingival RD with the use of RCM when compared with the group of CAF alone.

  5. MEMORIA VISUAL COMO PARTE DEL PROCESO LECTOR

    OpenAIRE

    Gamero-Muñiz, Antonia

    2013-01-01

    Este trabajo tiene como objetivo indagar la relación entre los movimientos sacádicos, velocidad y comprensión lectora y la memoria visual en alumnos de 2ºESO, con el propósito de contribuir a la labor docente en los apoyos del aprendizaje de una correcta lectura y tomando como fundamentación teórica la importancia de la memoria visual en el proceso lector. Se ha seleccionado una muestra de 24 niños y 21 niñas con edades comprendidas entre 13 y 15 años. Se evaluaron los movimientos sacádico...

  6. La fenomenología como atavismo

    Directory of Open Access Journals (Sweden)

    Galán, Iván

    2009-04-01

    Full Text Available This paper deals with phenomenology as a result of phenomenological freedom in its possibility of understanding a phenomenon as wild phenomenon. From this perspective, we are enabled to transcend established symbolic systems and to pose the question on the existence of a sense which is immature, not-saturated and imperfect without exception.El artículo pretende mostrar la vigencia de la fenomenología como expresión de la libertad fenomenológica, como posibilidad siempre abierta de acceder al fenómeno en cuanto fenómeno puro, registro arquitectónico en el que, saltando por sobre los sistemas simbólicos instituidos, nos es permitido plantear en toda su radicalidad la pregunta por la existencia de un sentido siempre prematuro, no saturado y jamás clausurable.

  7. O historiador como intelectual mediador da cultura

    Directory of Open Access Journals (Sweden)

    Alex Fernandes Borges

    2017-07-01

    Full Text Available O presente artigo visa analisar teoricamente a possibilidade de se qualificar o historiador, tomando por base uma tipologia ideal extraída da teoria da história de Jörn Rüsen, como um intelectual mediador, notadamente com base no conceito proposto a partir dos estudos de mediação cultural desenvolvido por Jesús Martín-Barbero e recentemente sistematizado no país por Ângela de Castro Gomes e Patrícia Hansen. Diante disso, articulou-se as hipóteses em três eixos: caracterização do intelectual mediador da cultura como uma categoria de análise compreensiva; instituição de um tipo ideal de historiador nos moldes weberianos e; a subsunção deste àquela.

  8. La Realidad Aumentada como complemento motivacional

    Directory of Open Access Journals (Sweden)

    Gazcón, Nicolás Fernando

    2016-06-01

    Full Text Available El acelerado avance de la tecnología permite que las tecnologías emergentes sean accesibles por todos los usuarios. Ejemplos de estas tecnologías son la Realidad Aumentada y la Reconstrucción 3D, que gracias a dispositivos como tabletas o teléfonos inteligentes, pueden utilizarse de manera ubicua. Éstas tienen un enorme potencial en el campo de la educación, ya sea como recurso para entender conceptos complejos, como para motivar el aprendizaje de nuevos contenidos. El desafío de estas tecnologías es integrarlas para que sean accesibles y fáciles de utilizar por los docentes y los alumnos. En este trabajo presentamos una metodología para motivar el aprendizaje tanto en tareas de campo, mediante el uso de la Reconstrucción 3D, como en el ámbito escolar mediante libros aumentados. Por medio de un caso de estudio introducimos la Reconstrucción 3D de elementos fósiles de un sitio paleontológico bonaerense, para luego incorporar estos contenidos generados en un libro aumentado. A partir de la digitalización de huellas y fósiles de sitios paleontológicos, se obtuvieron modelos 3D que se integraron en un ambiente de aprendizaje inmersivo en el aula mediante los libros aumentados. Presentamos las opiniones de docentes de distintas disciplinas, que resaltan las posibilidades de esta metodología para su inclusión en el ámbito educacional regional.

  9. EL CONFLICTO COMO CONSTRUCTOR DE CIUDAD

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    Twiggy Ortegón

    2012-04-01

    Full Text Available El planteamiento central de este articulo, es el de sugerir una análisis en torno a algunas de las condiciones o mecanismo necesarios para que el conflicto opere como un potenciador de la diferencia y creador de alternativas para la convivencia Se realiza una distinción del concepto, un análisis de contenidos interaccionales en dinámicas de conflicto y su relación con el contexto urbano de Bogotá, enfocándose en ámbitos escolares. En ciudades como Bogotá, las discusiones y acciones que diferentes estamentos han emprendido frente a la manera de concebir y gestionar el conflicto, desembocan en la creación de diferentes organismos como los centros de conciliación, la aplicación de fórmulas y técnicas para la solución de conflictos, el desarrollo de propuestas desde entes administrativos a nivel distrital y las nuevas disposiciones que plantea la Ley 115 sobre Gobierno Escolar y manuales de convivencia.

  10. Molecular dissection of a contiguous gene syndrome: Frequent submicroscopic deletions, evolutionarily conserved sequences, and a hypomethylated island in the Miller-Dieker chromosome region

    International Nuclear Information System (INIS)

    Ledbetter, D.H.; Ledbetter, S.A.; vanTuinen, P.

    1989-01-01

    The Miller-Dieker syndrome (MDS), composed of characteristic facial abnormalities and a severe neuronal migration disorder affecting the cerebral cortex, is caused by visible or submicroscopic deletions of chromosome band 17p13. Twelve anonymous DNA markers were tested against a panel of somatic cell hybrids containing 17p deletions from seven MDS patients. All patients, including three with normal karyotypes, are deleted for a variable set of 5-12 markers. Two highly polymorphic VNTR (variable number of tandem repeats) probes, YNZ22 and YNH37, are codeleted in all patients tested and make molecular diagnosis for this disorder feasible. By pulsed-field gel electrophoresis, YNZ22 and YNH37 were shown to be within 30 kilobases (kb) of each other. Cosmid clones containing both VNTR sequences were identified, and restriction mapping showed them to be 100 kb were completely deleted in all patients, providing a minimum estimate of the size of the MDS critical region. A hypomethylated island and evolutionarily conserved sequences were identified within this 100-kb region, indications of the presence of one or more expressed sequences potentially involved in the pathophysiology of this disorder. The conserved sequences were mapped to mouse chromosome 11 by using mouse-rat somatic cell hybrids, extending the remarkable homology between human chromosome 17 and mouse chromosome 11 by 30 centimorgans, into the 17p telomere region

  11. Prebiotic Synthesis of Methionine and Other Sulfur-Containing Organic Compounds on the Primitive Earth: A Contemporary Reassessment Based on an Unpublished 1958 Stanley Miller Experiment

    Science.gov (United States)

    Parker, Eric T.; Cleaves, H. James; Callahan, Michael P.; Dworkin, Jason P.; Glavin, Daniel P.; Lazcano, Antonio

    2010-01-01

    Original extracts from an unpublished 1958 experiment conducted by the late Stanley L. Miller were recently found and analyzed using modern state-of-the-art analytical methods. The extracts were produced by the action of an electric discharge on a mixture of methane (CH4), hydrogen sulfide (H2S), ammonia (NH3), and carbon dioxide (CO2). Racemic methionine was farmed in significant yields, together with other sulfur-bearing organic compounds. The formation of methionine and other compounds from a model prebiotic atmosphere that contained H2S suggests that this type of synthesis is robust under reducing conditions, which may have existed either in the global primitive atmosphere or in localized volcanic environments on the early Earth. The presence of a wide array of sulfur-containing organic compounds produced by the decomposition of methionine and cysteine indicates that in addition to abiotic synthetic processes, degradation of organic compounds on the primordial Earth could have been important in diversifying the inventory of molecules of biochemical significance not readily formed from other abiotic reactions, or derived from extraterrestrial delivery.

  12. Paleogeographic significance of Clavohamulus hintzei Miller (Conodonta) and other Ibexian conodonts in an early Paleozoic carbonate platform facies of the Argentine Precordillera

    Science.gov (United States)

    Lehnert, O.; Miller, J.F.; Repetski, J.E.

    1997-01-01

    Pre-Tremadocian conodonts and trilobites and Tremadocian conodonts are reported from the Cambrian and Ordovician La Silla Formation in the Cerro La Silla section in east-southeast Ja??chal, San Juan Province, Argentina. A shallow marine conodont fauna contains elements of Clavohamulus hintzei Miller, a common species in North America, but reported for the first time from the early Paleozoic platform carbonates of the western Argentine Precordillera. The presence of this species suggests a correlation with the Clavohamulus hintzei conodont subbiozone of the Cordylodus intermedius conodont biozone in North America, considered Early Ordovician (Skullrockian Stage, Ibexian Series) in North America, but by South American and European standards, this biozone would be of latest Cambrian age. C. hintzei and associated conodonts of the La Silla Formation are typical of the tropical faunas of the North American Midcontinent Faunal Province; Late Cambrian trilobites from lower in the formation also are typical North American taxa. The presence of these faunas in the platform carbonates is consistent with plate reconstructions suggesting that the Precordillera was in a tropical or subtropical position close to Laurentia during the late Precambrian and early Paleozoic. These new paleontological data provide one more argument for recent models of the Precordillera as a displaced terrane derived from the Ouachita Embayment at the southern margin of Laurentia.

  13. Bickerstaff’s brainstem encephalitis, Miller Fisher syndrome and Guillain-Barré syndrome overlap in an asthma patient with negative anti-ganglioside antibodies

    Directory of Open Access Journals (Sweden)

    Han Chongyu

    2012-06-01

    Full Text Available Abstract Background Bickerstaff’s brainstem encephalitis (BBE, together with Miller Fisher syndrome (MFS and Guillain-Barré syndrome (GBS were considered to form a continuous clinical spectrum. An anti-GQ1b antibody syndrome has been proposed to underlie the common pathophysiology for the three disorders; however, other studies have found a positive anti-GM1 instead of anti-GQ1b antibody. Case presentation Here we report a 20-year-old male patient with overlapping BBE, MFS and GBS. The patient had a positive family history of bronchial asthma and had suffered from the condition for over 15 years. He developed BBE symptoms nine days after an asthma exacerbation. During the course of illness, he had significantly elevated IgE levels in both serum and cerebrospinal fluid. Serologic analysis of antibodies against ganglioside complexes (anti-GDIa, anti-GDIb, anti-GM1, anti-GM2, anti-GM3, anti-GQIb and anti-GTIb antibodies showed negative results. Conclusions Since asthma has recently been related to autoimmune disease, our case supports an autoimmune mechanism underlying the clinical spectrum composed of BBE, MFS and GBS. However, contrary to a proposed anti-GQ1b antibody syndrome, we would suggest that pathogenesis of this clinical spectrum is not limited to anti-ganglioside antibodies.

  14. Personality pathology is dimensional, so what shall we do with the DSM-IV personality disorder categories? The case of narcissistic personality disorder: Comment on Miller and Campbell (2010).

    Science.gov (United States)

    Krueger, Robert F

    2010-07-01

    What is narcissism? Is it a dimensional personality trait? Is it the core element of a categorical form of psychopathology? Miller and Campbell (see record 2010-17135-004) present a thoughtful, scholarly, and well-written review of a substantial literature aimed at synthesizing research on trait narcissism and contemplating its relevance to the category of narcissistic personality disorder (NPD). They also present an argument that research on trait narcissism should be used to help propel research on NPD, as explicated in the Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM-IV; American Psychiatric Association, 1994). This latter argument is somewhat surprising in the context of the rest of Miller and Campbell's article and it is the focus of my commentary. PsycINFO Database Record (c) 2010 APA, all rights reserved

  15. Radio universitaria: trabajo en red como imperativo

    Directory of Open Access Journals (Sweden)

    Tiziana Cavallo

    2014-01-01

    Full Text Available Trabajo en red es un concepto clave en la radio universitaria, tanto desde el punto de vista individual como del colectivo. A través de dos estudios de caso, enfocados en la radio universitaria de Italia y de Colombia, este artículo muestra cómo el trabajo en red ha sido decisivo para el fortalecimiento de su función, la ampliación de su impacto, la conformación de su identidad y el crecimiento de su visibilidad en las sociedades en las cuales desarrollan su labor.

  16. La fatiga como estado motivacional subjetivo

    Directory of Open Access Journals (Sweden)

    D. Cárdenas

    2017-03-01

    No obstante, la tendencia actual es entender la fatiga como un estado motivacional complejo cuyo origen tiene lugar en numerosos procesos fisiológicos y psicológicos que sirven para regular el esfuerzo y proteger al organismo de daños graves. Los objetivos de la presente revisión narrativa son analizar los diferentes enfoques existentes para el estudio y la explicación de la fatiga, establecer el vínculo con el concepto de carga de entrenamiento y justificar la importancia de evaluar las repercusiones de la carga mental para conseguir una adecuada planificación y control del proceso de entrenamiento.

  17. El cáncer como oportunidad

    OpenAIRE

    Mallo Caamaño, Rocío

    2013-01-01

    El objetivo de este proyecto es el de tratar el tema de la actitud ante el cáncer. El diagnóstico del cáncer es algo devastador para la persona diagnosticada principalmente, además de para sus allegados más cercanos. Apoyo en este trabajo la propuesta del cáncer como una oportunidad; una oportunidad para aprender de la experiencia traumática que éste supone y salir reforzados de la situación.

  18. La idea del Geocoaching como herramienta interdisciplinar

    OpenAIRE

    Grau Martínez, Sergio

    2017-01-01

    Treball Final de Grau en Mestre o Mestra d'Educació Primària. Codi: MP1040. Curs acadèmic: 2016/2017 Con este trabajo se pretende demostrar que existen alternativas activas y dinámicas que favorecen notablemente el aprendizaje significativo y la interdisciplinariedad de algunas asignaturas, en este caso, la educación física y las ciencias sociales y naturales. Para ello, en dicho trabajo se propone utilizar la idea del “geocaching” como base y herramienta para realizar una serie de sesi...

  19. La Beta 2 Microglobulina como Marcador Tumoral.

    OpenAIRE

    Saúco Márquez, Juan José

    2016-01-01

    En el presente trabajo hemos efectuado un estudio acerca del valor que tiene la Beta 2 Microglobulina para ser empleada como marcador tumoral. Esta sustancia es una microproteína que es producida por casi todas las células del organismos excepto los eritrocitos y las células trofoblásticas, es liberada a la circulación y es filtrada a nivel glomerular siendo reabsorbida por los túbulos renales en cuyas células es catabolizada y degradada ha...

  20. La indiferencia como instrumento de poder

    Directory of Open Access Journals (Sweden)

    Sergio Carlos Staude

    2014-10-01

    Full Text Available La indiferencia como respuestaante las situaciones de horror queprovoca la guerra llega a adquirirdiferentes funciones. Puede ser unindicador del resguardo necesariopara tramitar lo traumático de losacontecimientos, también un modode desmentir la responsabilidad deestos o bien ser un instrumentosiniestro de poder destinado agarantizar la eficacia de quienesejercen la violencia, neutralizar lasrespuestas del medio social y marginarlas reacciones posibles de lasvíctimas. Se destacan los recursosque aportan el psicoanálisis, lacreación ficcional del arte y, en particular,los esfuerzos de legitimaciónde la justicia para paliar los efectosiatrogénicos de la indiferencia.

  1. La entrevista como encuentro de subjetividades

    Directory of Open Access Journals (Sweden)

    Emma Ruiz Martín del Campo

    2003-01-01

    Full Text Available Se parte de la comprensión de la subjetividad como la expresión preñada de cultura de cada ser humano que se gesta en las relaciones interpersonales, primero entre el infante y las personas que le prodigan los cuidados tempranos, y después en la adolescencia y la edad adulta, con cada vez más representantes de la cultura de la socialización. En dicha interacción, la persona aprende a convivir con otros y a modelar sus impulsos, lo que le permite encontrar las formas más satisfactorias posibles de experimentarse a sí misma y tomar parte en las actividades de su entorno social. El equilibrio entre el individuo que busca satisfacer sus impulsos y necesidades y la cultura a la que pertenece es dinámico, por lo que la subjetividad se transforma a lo largo de toda la vida. Tras abundar sobre la subjetividad, se describen dos formas de orientar la entrevista a profundidad: la psicoanalítica y la etnopsicoanalítica. La entrevista psicoanalítica explora la subjetividad como tal y en ella el entrevistador actúa como un acompañante del sujeto en la progresiva comprensión de sí mismo y de su historia individual, desentrañando significados del comportamiento hasta entonces inconscientes para sí mismo, que se clarifican en la interacción. La entrevista etnopiscoanalítica busca explorar la experiencia cultural de las personas. Expertos en ciencias sociales entrenados a la vez en el descubrimiento del inconsciente se involucran en un medio cultural nuevo para ellos y a través de entrevistas y conversaciones con los integrantes de la comunidad que visitan van descubriendo formas de participación de estos en los espacios de vida social, así como las maneras que dan cuenta de símbolos y modos de reacción propios de su cultura. Cada una de estas dos formas de entrevista es ilustrada con un ejemplo que da muestra plásticamente del encuentro de las subjetividades

  2. No tomar lo real como real

    Directory of Open Access Journals (Sweden)

    Jean Baudrillard

    2015-01-01

    Full Text Available El problema de la comunicación es hoy el de los medios de comunicación. La comunicación en sí ya no tiene tanto sentido. El aparato tecnológico que debería jugar un rol de intermediario en realidad no es un intermediario sino una especie de obstáculo en la relación comunicativa. Vale decir que los medios se autonomizan como una especie de aparato autorreferencial, que se desarrolla por sí mismo y pierde de vista su finalidad y se vuelve proliferante.

  3. Temperature and salinity profiles from CTD casts from NOAA Ship MILLER FREEMAN and other PLATFORMS from a World-Wide Distribution in support of the Integrated Global Ocean Services System (IGOSS) from 1991-07-01 to 1991-07-31 (NODC Accession 9100146)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CTD and other data were collected from NOAA Ship MILLER FREEMAN and other PLATFORMS in support of the Integrated Global Ocean Services System (IGOSS). Data were...

  4. Temperature and salinity profiles from CTD casts from NOAA Ship MILLER FREEMAN and other PLATFORMS from the North Pacific Ocean and North Atlantic Ocean in support of the Integrated Global Ocean Services System (IGOSS) from 1991-10-01 to 1991-10-31 (NODC Accession 9100209)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — CTD and other data were collected from NOAA Ship MILLER FREEMAN and other PLATFORMS in support of the Integrated Global Ocean Services System (IGOSS). Data were...

  5. Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and Calcium collected from discrete sample and profile observations using CTD, bottle and other instruments from NOAA Ship MILLER FREEMAN in the North Pacific Ocean and South Pacific Ocean from 1979-04-01 to 1982-06-30 (NODC Accession 0000180)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0000180 includes chemical, discrete sample, physical and profile data collected from NOAA Ship MILLER FREEMAN in the North Pacific Ocean and South...

  6. Temperature and salinity profiles from expendable bathythermograph (XBT) and CTD casts from NOAA Ship MILLER FREEMAN and other Platforms from Coastal Waters of Washington/Oregon and other locations in support of the Integrated Global Ocean Services System (IGOSS) from 1977-07-12 to 1983-07-26 (NODC Accession 8300102)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — XBT and CTD data were collected from NOAA Ship MILLER FREEMAN and other Platforms in support of the Integrated Global Ocean Services System (IGOSS) project. Data...

  7. Guatemala como alternativa de desarrollo local

    Directory of Open Access Journals (Sweden)

    Rosa Elba Hernandez Cruz

    2015-01-01

    Full Text Available El área aledaña a la Reserva de la biósfera del Volcán Tacaná, en Chiapas México destaca por la producción de café, además de una alta diversidad de flora y fauna; sin embargo las comunidades rurales que habitan estos espacios están en constante búsqueda de alternativas productivas para mejorar sus medios de vida y cuidar el ambiente el cual está sufriendo deterioro. Ante esta situación se planteó como objetivo la integración de una red de fincas agroecoturísticas en los municipios de Cacahoatán, Tuxtla Chico, Unión Juárez en Chiapas, México y una comunidad en Guatemala. Para construir la propuesta se utilizó la metodología de modos de vida, se realizaron talleres participativos, recorridos en campo y se identificaron los productos turísticos. Se concluye, a partir del análisis de los modos de vida, que la región presenta características y oportunidades para desarrollar la red de agroecoturismo como una alternativa económica.

  8. Marañón como modelo

    Directory of Open Access Journals (Sweden)

    Gracia, Diego

    2013-02-01

    Full Text Available As a result of his consistent attitude as citizen and doctor and his “liberal spirit”, Marañón has gone down in the history of the twentieth century as an archetype. Marañón was, above all, a moralist in the Kantian sense, an autonomous person not governed by external criteria but by duty; a thinker convinced of the transforming role of the positive sciences, towards a happier and more just society through a deep intellectual reform. Marañón, like Fernando de los Rios, integrated Kraussism, neo-Kantianism and socialism and from this ideological platform sought the necessary moral change in the Spanish people.Marañón ha pasado a la historia del siglo XX como arquetipo, debido a su actitud coherente y a su “talante liberal”. Marañón fue, sobre todo, un moralista en el sentido kantiano. Una persona autónoma que no se rigió por criterios externos, sino por deber; un convencido del papel transformador de las ciencias positivas en pos de una sociedad más feliz y más justa gracias a una profunda reforma intelectual. Marañón, como Fernando de los Ríos, integró krausismo, neokantismo y socialismo y desde esa plataforma ideológica, propugnó el necesario cambio moral del pueblo español.

  9. Las comunidades locales como estructuras meso.

    Directory of Open Access Journals (Sweden)

    Ferrand, Alexis

    2002-09-01

    Full Text Available Entre el nivel micro y el nivel macro: meso. Si el nivel macro está definido por la regulación nacional, estatal o del mercado y el nivel micro por la regulación interpersonal, una agencia de regulación intermediaria de mayor importancia ha sido definida como “comunidad local” (Wellman, Fischer. Aparte de las dimensiones organizacionales (organizaciones locales, clubes, tiendas... e institucionales (poder local, partidos... locales, es posible definir algunas propiedades estructurales pertinentes de los sistemas de relaciones interpersonales privadas: uno es el grado de “cerrado” (closure local (Barnes: redes locales vs. transversales, o la “dualidad” de estos sistemas. Apoyándose en la idea de que la eficiencia de los “puentes” reside en el tipo de cliques que conectan (Lin, es posible definir tipos variados de micro-estructuras, cuyas distribuciones en diferentes localidades son indicadores sucedáneos o aproximaciones de las diferentes meso estructuras de sistemas relacionales como combinaciones de redes “locales” y “no locales”.

  10. Tecnologia como fundamento do cuidar em Neonatologia

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    José Antonio de Sá Neto

    2010-01-01

    Full Text Available Se trata de un artículo sobre la evolución histórica de la tecnología en neonatología, resaltando aspectos conceptuales y reflexivos sobre el impacto tecnológico en el proceso de cuidar. A pesar de que en los últimos años, la tecnología ha contribuido para mejorar la supervivencia de prematuros extremos nacidos con muy bajo peso, algunas veces da lugar a una modalidad de atención mecánica e impersonal, que se contrapone a cuestiones de índole ética y humana. Se propone una discusión crítica y reflexiva acerca del uso de la tecnología en el cuidado neonatal, destacando sus implicaciones y adecuaciones a las necesidades del recién nacido. Se concluyó que lo que determina si una tecnología es buena o mala, si deshumaniza, despersonaliza o interpreta como objeto al sujeto a cuidar, es la manera como es utilizada, convirtiéndose en imprescindible el perfeccionamiento y la actualización de los profesionales de la salud. En este ejercicio análitico es necesario reflexionar acerca de nuevas maneras de brindar cuidados, utilizando el arte, la sensibilidad y la creatividad en la adaptación y humanización de las tecnologías.

  11. Quitina y carboximetilquitosana como agentes desintegrantes

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    Sol A Fernández Monagas

    1998-08-01

    Full Text Available Se realizó un estudio comparativo de la quitina y la carboximetilquitosana como agentes desintegrantes, y se evaluó la influencia ejercida por el método empleado en la elaboración de las tabletas sobre la actividad desintegrante de ambos polímeros. La quitina presentó buenas características como agente desintegrante independientemente del método utilizado en la elaboración de las tabletas, mientras que la actividad desintegrante de la carboximetilquitosana fue afectada por el proceso de granulación.A comparative study of chitin and carboxymethylchitosan as disintegrating agents was wade made. The influence exerted bu tje method used in the preparation of the tablets on the disintegrating activity of both polymers was evaluated. Chitin proved to have good characteristics as a disintegrating agent independently of the method used to make tablets. The disintegrating activity of carboxymethylchitosan was affected by the granulation process.

  12. El lenguaje como instrumento de poder

    Directory of Open Access Journals (Sweden)

    MARÍA TERESA SUÁREZ GONZÁLEZ

    2009-01-01

    Full Text Available La investigación denominada 'El lenguaje como instrumento de poder' planteó dos interrogantes que permitieron, por un lado, evidenciar ¿cuáles estrategias discursivas permiten analizar la relación entre lenguaje y poder en el discurso de la segunda posesión del presidente Álvaro Uribe Vélez y, por otro, analizar las implicaciones que tienen las mencionadas estrategias en la construcción de sentido. Lo anterior con el fin de mirar cómo se ejerce poder mediante las prácticas discursivas, dado que quien emite un discurso busca, ante todo, convencer y cambiar la mentalidad de los receptores, a través de la comunicación de creencias, actitudes, valores y un sinnúmero de saberes tomados de su entorno y de la cultura, por medio de estrategias discusivas que son empleadas de manera consciente, de acuerdo con el fin que se persiga. Teniendo en cuenta lo anterior, esta ponencia presenta los resultados obtenidos en la investigación, desarrollada en la Maestría en Lingüística de la UPTC, los cuales muestran el discurso como una interacción a través de la cual se evidencian marcas de poder y se construyen los acontecimientos y las identidades de los sujetos, mediante la comunicación.

  13. Bloque de tierra comprimida como material constructivo

    Directory of Open Access Journals (Sweden)

    Óscar Javier Gutiérrez Junco

    2011-07-01

    Full Text Available La construcción con tierra es poco usada en la actualidad debido a la falta de difusión e investigación, y a que es relacionada con la pobreza; por ende, se desaprovechan muchas de sus ventajas, como la abundancia demateria prima, la localización, la disponibilidad, el reciclaje, la producción sin consumo de energía (calorífica, el bajo costo y la resistencia –con un adecuado estudio del material tierra, de la estructuración y del suelo de fundación–; otras de sus ventajas son el aislamiento térmico y acústico. Con el paso del tiempo se han mejorado las técnicas constructivas con tierra, realizando estabilizaciones e implementando el uso de maquinaria y herramienta mecánica para elaborar bloques de tierra comprimida, y así facilitar el trabajo y obtener mayor rendimiento. Este artículo presenta la tierra como material constructivo, las técnicas o sistemas constructivos, los bloques de tierra comprimida (BTC y algunos ensayos realizados a estos bloques.

  14. El manual como texto Schoolbook as text

    Directory of Open Access Journals (Sweden)

    Agustín Escolano Benito

    2012-12-01

    Full Text Available Este trabajo aborda la cuestión de la identidad del libro escolar como un género textual específico en el contexto de la manualística clásica y moderna, contextualizando los análisis en el marco de la cultura de la escuela tradicional y en la era de la revolución digital y bajo una perspectiva historiográfica y teórica. También plantea el nacimiento y primeros desarrollos de la manualística como campo intelectual y académico y sus contribuciones a la definición de la identidad del libro escolar.This paper discusses the question of identifying a coursebook as a specific text genre in the context of the classical and modern manualistics, situating the analysis within the traditional school culture and the digital revolution era, under a historical and theoretical perspective. It also covers the birth and initial development of manualistics as an intelectual and academic field and its contributions to the definition of the schoolbook identity.

  15. UMTRA water sampling technical (peer) review. Responses to observations, comments, and recommendations submitted by C. Warren Ankerberg (Geraghty ampersand Miller, Inc.)

    International Nuclear Information System (INIS)

    1993-08-01

    At the request of the Office of Independent Technical Review for the U.S. Department of Energy (DOE), Uranium Mill Tailings Remedial Action (UMTRA) Project, an independent technical review (peer review) was conducted during the period of September 15-17, 1992. The review was conducted by C. Warren Ankerberg (Geraghty ampersand Miller, Inc., Tampa, Florida) and Don Messinger (Roy F. Weston, Inc., West Chester, Pennsylvania). The peer review included a review of written documentation [water sampling standard operating procedures (SOP)], an inspection of technical reports and other deliverables, a review of staff qualifications and training, and a field visit to evaluate the compliance of field procedures with SOPs. The approach of the peer reviewers was to verify that the program meets the following criteria: Reported results are traceable to and consistent with recorded data. The basic assumptions and acceptance criteria are valid. Data are traceable to their origin and to reported analytical results. The procedures employed are consistent both internally and externally with written SOPs and regulatory guidelines. Inferences and conclusions are soundly based. The procedures and/or reports generated present work that satisfies the local, state and/or Federal regulatory requirements as applicable. The approach is consistent with industry standards and/or state-of-the-art technology, as practical. The data generated by activities are legally defensible and technically sound. UMTRA staff are adequately trained and qualified for the work. This document is a response to the observations, comments, and recommendations submitted by C. Warren Ankerberg following his review. The format of this document is to present the findings and recommendations verbatim from Mr. Ankerberg's report, followed by responses from the UMTRA Project staff. Included in the responses from the UMTRA Project staff are recommended changes in SOPs and strategies for implementing the changes

  16. WNT Inhibitory Activity of Malus Pumila miller cv Annurca and Malus domestica cv Limoncella Apple Extracts on Human Colon-Rectal Cells Carrying Familial Adenomatous Polyposis Mutations.

    Science.gov (United States)

    Riccio, Gennaro; Maisto, Maria; Bottone, Sara; Badolati, Nadia; Rossi, Giovanni Battista; Tenore, Gian Carlo; Stornaiuolo, Mariano; Novellino, Ettore

    2017-11-18

    Inhibitors of the Wingless-related Integration site (WNT)/β-catenin pathway have recently been under consideration as potential chemopreventive agents against Familial Adenomatous Polyposis (FAP). This autosomal-dominant syndrome is caused by germline mutations in the gene coding for the protein APC and leads to hyperactivation of the WNT/β-catenin signaling pathway, uncontrolled intestinal cell proliferation and formation of adenocarcinomas. The aim of the present work was to: (i) test, on in vitro cultures of cells carrying FAP mutations and on ex vivo biopsies of FAP patients, the WNT inhibitory activity of extracts from two common southern Italian apples, Malus pumila Miller cv. 'Annurca' and Malus domestica cv 'Limoncella'; (ii) identify the mechanisms underpinning their activities and; (iii) evaluate their potency upon gastrointestinal digestion. We here show that both Annurca and Limoncella apple extracts act as WNT inhibitors, mostly thanks to their polyphenolic contents. They inhibit the pathway in colon cells carrying FAP mutations with active dilutions falling in ranges close to consumer-relevant concentrations. Food-grade manufacturing of apple extracts increases their WNT inhibitory activity as result of the conversion of quercetin glycosides into the aglycone quercetin, a potent WNT inhibitor absent in the fresh fruit extract. However, in vitro simulated gastrointestinal digestion severely affected WNT inhibitory activity of apple extracts, as result of a loss of polyphenols. In conclusion, our results show that apple extracts inhibit the WNT pathway in colon cells carrying FAP mutations and represent a potential nutraceutical alternative for the treatment of this pathology. Enteric coating is advisable to preserve the activity of the extracts in the colon-rectal section of the digestive tract.

  17. Hydrogeochemical modelling of fluid–rock interactions triggered by seawater injection into oil reservoirs: Case study Miller field (UK North Sea)

    International Nuclear Information System (INIS)

    Fu, Yunjiao; Berk, Wolfgang van; Schulz, Hans-Martin

    2012-01-01

    A hydrogeochemical model is presented and applied to quantitatively elucidate interdependent reactions among minerals and formation water–seawater mixtures at elevated levels of CO 2 partial pressure. These hydrogeochemical reactions (including scale formation) occur within reservoir aquifers and wells and are driven by seawater injection. The model relies on chemical equilibrium thermodynamics and reproduces the compositional development of the produced water (formation water–seawater mixtures) of the Miller field, UK North Sea. This composition of the produced water deviates from its calculated composition, which could result solely from mixing of both the end members (formation water and seawater). This indicates the effect of hydrogeochemical reactions leading to the formation and/or the dissolution of mineral phases. A fairly good match between the modelled and measured chemical composition of produced water indicates that hydrogeochemical interactions achieve near-equilibrium conditions within the residence time of formation water–seawater mixtures at reservoir conditions. Hence the model enables identification of minerals (including scale minerals), to quantitatively reproduce and to predict their dissolution and/or formation. The modelling results indicate that admixing of seawater into formation water triggers the precipitation of Sr–Barite solid solution, CaSO 4 phases and dolomite. In contrast, calcite and microcrystalline quartz are dissolved along the seawater flow path from the injection well towards the production well. Depending on the fraction of seawater admixed, interdependent reactions induce profound modifications to the aquifer mineral phase assemblage. At low levels of seawater admixture, Ba–Sr sulfate solid solution is precipitated and coupled to concurrent dissolution of calcite and microcrystalline quartz. Massive dissolution of calcite and the formation of CaSO 4 phases and dolomite are triggered by intense seawater admixture

  18. The Miller cycle effects on improvement of fuel economy in a highly boosted, high compression ratio, direct-injection gasoline engine: EIVC vs. LIVC

    International Nuclear Information System (INIS)

    Li, Tie; Gao, Yi; Wang, Jiasheng; Chen, Ziqian

    2014-01-01

    Highlights: • At high load, LIVC is superior over EIVC in improving fuel economy. • The improvement with LIVC is due to advanced combustion phasing and increased pumping work. • At low load, EIVC is better than LIVC in improving fuel economy. • Pumping loss with EIVC is smaller than with LIVC at low load. • But heat release rate with EIVC is slower than with LIVC. - Abstract: A combination of downsizing, highly boosting and direct injection (DI) is an effective way to improve fuel economy of gasoline engines without the penalties of reduced torque or power output. At high loads, however, knock problem becomes severer when increasing the intake boosting. As a compromise, geometric compression ratio (CR) is usually reduced to mitigate knock, and the improvement of fuel economy is discounted. Application of Miller cycle, which can be realized by either early or late intake valve closing (EIVC or LIVC), has the potential to reduce the effective CR and suppress knock. In this paper, the effects of EIVC and LIVC on the fuel economy of a boosted DI gasoline production engine reformed with a geometric CR of 12.0 are experimentally compared at low and high loads. Compared to the original production engine with CR 9.3, at the high load operation, the brake specific fuel consumption (BSFC) is improved by 4.7% with CR12.0 and LIVC, while the effect of EIVC on improving BSFC is negligibly small. At the low load operation, combined with CR12.0, LIVC and EIVC improve the fuel economy by 6.8% and 7.4%, respectively, compared to the production engine. The mechanism behind the effects of LIVC and EIVC on improving the fuel economy is discussed. These results will be a valuable reference for engine designers and researchers

  19. WNT Inhibitory Activity of Malus Pumila miller cv Annurca and Malus domestica cv Limoncella Apple Extracts on Human Colon-Rectal Cells Carrying Familial Adenomatous Polyposis Mutations

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    Gennaro Riccio

    2017-11-01

    Full Text Available Inhibitors of the Wingless-related Integration site (WNT/β-catenin pathway have recently been under consideration as potential chemopreventive agents against Familial Adenomatous Polyposis (FAP. This autosomal-dominant syndrome is caused by germline mutations in the gene coding for the protein APC and leads to hyperactivation of the WNT/β-catenin signaling pathway, uncontrolled intestinal cell proliferation and formation of adenocarcinomas. The aim of the present work was to: (i test, on in vitro cultures of cells carrying FAP mutations and on ex vivo biopsies of FAP patients, the WNT inhibitory activity of extracts from two common southern Italian apples, Malus pumila Miller cv. ‘Annurca’ and Malus domestica cv ‘Limoncella’; (ii identify the mechanisms underpinning their activities and; (iii evaluate their potency upon gastrointestinal digestion. We here show that both Annurca and Limoncella apple extracts act as WNT inhibitors, mostly thanks to their polyphenolic contents. They inhibit the pathway in colon cells carrying FAP mutations with active dilutions falling in ranges close to consumer-relevant concentrations. Food-grade manufacturing of apple extracts increases their WNT inhibitory activity as result of the conversion of quercetin glycosides into the aglycone quercetin, a potent WNT inhibitor absent in the fresh fruit extract. However, in vitro simulated gastrointestinal digestion severely affected WNT inhibitory activity of apple extracts, as result of a loss of polyphenols. In conclusion, our results show that apple extracts inhibit the WNT pathway in colon cells carrying FAP mutations and represent a potential nutraceutical alternative for the treatment of this pathology. Enteric coating is advisable to preserve the activity of the extracts in the colon-rectal section of the digestive tract.

  20. Quince (Cydonia oblonga Miller) peel polyphenols modulate LPS-induced inflammation in human THP-1-derived macrophages through NF-κB, p38MAPK and Akt inhibition

    International Nuclear Information System (INIS)

    Essafi-Benkhadir, Khadija; Refai, Amira; Riahi, Ichrak; Fattouch, Sami; Karoui, Habib; Essafi, Makram

    2012-01-01

    Highlights: ► Quince peel polyphenols inhibit LPS-induced secretion of TNF-α and IL-8. ► Quince peel polyphenols augment LPS-induced secretion of IL-10 and IL-6. ► Quince peel polyphenols-mediated inhibition of LPS-induced secretion of TNF-α is partially mediated by IL-6. ► The anti-inflammatory effects of quince polyphenols pass through NF-κB, p38MAPK and Akt inhibition. -- Abstract: Chronic inflammation is a hallmark of several pathologies, such as rheumatoid arthritis, gastritis, inflammatory bowel disease, atherosclerosis and cancer. A wide range of anti-inflammatory chemicals have been used to treat such diseases while presenting high toxicity and numerous side effects. Here, we report the anti-inflammatory effect of a non-toxic, cost-effective natural agent, polyphenolic extract from the Tunisian quince Cydonia oblonga Miller. Lipopolysaccharide (LPS) treatment of human THP-1-derived macrophages induced the secretion of high levels of the pro-inflammatory cytokine TNF-α and the chemokine IL-8, which was inhibited by quince peel polyphenolic extract in a dose-dependent manner. Concomitantly, quince polyphenols enhanced the level of the anti-inflammatory cytokine IL-10 secreted by LPS-treated macrophages. We further demonstrated that the unexpected increase in IL-6 secretion that occurred when quince polyphenols were associated with LPS treatment was partially responsible for the polyphenols-mediated inhibition of TNF-α secretion. Biochemical analysis showed that quince polyphenols extract inhibited the LPS-mediated activation of three major cellular pro-inflammatory effectors, nuclear factor-kappa B (NF-κB), p38MAPK and Akt. Overall, our data indicate that quince peel polyphenolic extract induces a potent anti-inflammatory effect that may prove useful for the treatment of inflammatory diseases and that a quince-rich regimen may help to prevent and improve the treatment of such diseases.

  1. Las javieradas como caso de estudio

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    Mª Cruz Porcal Gonzalo

    2006-01-01

    Full Text Available A pesar de su todavía modesta participación en la economía y en el empleo regional, el turismo en Navarra ha mostrado durante los últimos años un significativo dinamismo tal y como, por ejemplo, lo testimonia el incremento del número de visitantes y de las empresas turísticas. Favorecido por una serie de circunstancias de índole variada, este desarrollo turístico se sustenta en una gran diversidad geográfica y cultural patente en los paisajes, el arte, las fiestas, la gastronomía, etc. Pero Navarra es, a su vez, una región que secularmente ha otorgado un gran peso a la tradición y a las creencias religiosas. En este contexto, algunas de las numerosas acciones emprendidas por la administración regional para dinamizar el sector turístico se han encaminado a revalorizar dos importantes legados culturales: el castillo de Javier y el Camino de Santiago. Se aprecia que ambos se hallan estrechamente relacionados con el turismo cultural, el turismo religioso y las peregrinaciones, unos fenómenos que hunden sus raíces en tiempos pasados pero que continúan teniendo en la actualidad una indudable relevancia a escala mundial. La intención primordial del presente trabajo es analizar el turismo de peregrinaciones en Navarra, más concretamente, el que tiene como destino del viaje la cuna de San Francisco Javier. Con dicho afán, se realiza una reflexión conceptual previa y un breve repaso de las fiestas y tradiciones religiosas que forman parte del patrimonio cultural intangible de Navarra, haciendo particular hincapié en las romerías y en el Camino de Santiago. Al hilo de ello, se afronta, a continuación, el estudio de la peregrinación más singular y populosa de Navarra: la Javierada. Su origen, sus principales rasgos, el perfil y las motivaciones de los peregrinos, los caracteres e hitos más importantes del recorrido, las peculiaridades del destino —entendido como lugar sagrado y espacio turístico— constituyen las principales

  2. Arquitectura como percepción

    Directory of Open Access Journals (Sweden)

    Mañana Borrazás, Patricia

    2003-12-01

    Full Text Available This text sets out to illustrate types of basic analysis in researching a question as intrinsically human as perception. In the analysis of a construction, the aspects relative to perception allow us to access interesting information as to how a construction functions and what is implied by its different spaces, information which is in direct relation to more human, living aspects of architecture. These analyses complement formal analyses, as while these allow us to describe a construction in time and space, analyses of perception seek to stress the existing relationship between the human being and the construction, understanding architecture as a physical element to be experienced and which has been constructed to create a favourable atmosphere for certain perceptions. The study first shows the most basic elements in perception analysis and how these support a methodology that attempts to understand a construction in all its aspects (formal, social, symbolic, giving as an example a Neolithic Galician burial mound.Este texto trata de ilustrar los tipos de análisis básicos para investigar una cuestión tan intrínsecamente humana como la percepción. En el análisis de una construcción, los aspectos relativos a la percepción nos permiten acceder a una interesante información de cómo una construcción funciona y qué implican sus distintos espacios, información en directa relación con los aspectos más humanos y vivenciales de la arquitectura. Son unos análisis complementarios a los análisis formales, ya que mientras estos nos permiten describir en el espacio y en el tiempo una construcción, los análisis de percepción tratan de incidir en la relación existente entre el ser humano y la construcción, entendiendo a la arquitectura también como elemento físico a experimentar y que ha sido construido para propiciar ciertas percepciones. Se exponen en primer lugar las claves más básicas de los análisis de percepción y cómo estos se

  3. Como Perseu se defendeu de Medusa?

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    Rose Lumertz de Freitas

    2012-04-01

    Full Text Available Na psicanálise francesa, principalmente com Lacan, o conceito de falta passou a ser de grande importância. Ao que, então, perguntamos: o que é a falta? E quando esta falta? O que acontece? O que acontece quando o não especularizável não está excluído, se fazendo, assim, especular? Quando Perseu vai ao encontro de Medusa, guiando-se por sua imagem refletida em um espelho de bronze polido, segurado por Atena, como pôde este herói defender-se de Medusa? Qual foi a forma encontrada por ele para se defender da presença do objeto que introduz a dimensão do real nu?

  4. La cultura como verdad: pobreza latinoamericana

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    Ana María Rocchietti

    2000-04-01

    Full Text Available El artículo parte de un balance crítico de la obra Antropología de la Pobreza, del antropólogo Oscar Lewis para analizar el concepto de pobreza en América Latina. Se argumenta que la cultura de la pobreza ofrece la posibilidad de incluir a las formaciones simbólicas de las tradiciones vivientes y a las que emergen en la existencia comunitaria de los pobres como un factor de peso en la evolución de las relaciones de fuerza entre las clases subalternas y las clases dominantes; entre los sectores populares rurales y urbanos y los gobiernos; entre las formaciones sociales nacionales y el imperialismo.

  5. Hume: a teoria social como sistema

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    Rolf Kuntz

    2011-12-01

    Full Text Available Hume defende na Investigação sobre o Entendimento Humano a parcimônia no uso de princípios explicativos. Tenta-se mostrar, neste artigo, como ele procurou seguir essa diretriz em seus trabalhos sobre os sentimentos morais, a história, a política e a economia. Explora-se, ao mesmo tempo, o caráter sistemático do projeto enunciado no começo do Tratado da Natureza Humana.In his Enquiry on Human Understanding Hume proposes a rule of parcimony in the use of explanatory principles. This essay is an attempt to show how the philosopher managed to follow that rule in his writings on moral sentiments, history, politics and economics. At the same time, it explores the systematic character of the project described in the presentation of the Treatise on Human Nature.

  6. El atal como ambiente de aprendizaje inclusivo

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    Inmaculada González Falcón

    2017-04-01

    Full Text Available En las últimas décadas la creciente llegada de población inmigrantes en España ha generado la determinación de nuevas políticas educativas de escolarización para el alumnado de origen extranjero. En la comunidad andaluza, se destaca la creación del “Aula Temporal de Aceleración Lingüística” para la promoción de la enseñanza de la lengua vehicular y la integración socioeducativa del alumnado de origen extranjero. El trabajo que aquí se presenta forma parte de proyecto nacional I+D+I (Ref. CSO2013-43266-R sobre las trayectorias de estos dispositivos. Este artículo se formula bajo un doble objetivo: por un lado, analizar las variables didácticas que se desarrollan en las ATAL de dos centros públicos de educación secundaria de la provincia onubense; y por otro, valorar las semejanzas y disonancias entre dichas aulas a través de un estudio etnográfico, explicitando de igual modo los condicionantes en cuanto a tres ejes de análisis: física-funcional, temporal y relacional. Los resultados se dirigen hacia el reconocimiento del aula como espacio de apoyo emocional y de atención personal desde la configuración de ambientes de aprendizaje. Este hecho evidencia la reflexión hacia modelos educativos que conformen un marco de actuación intercultural como generadores de la inclusión para el alumnado extranjero en los centros educativos.

  7. Taxonomia como elemento estruturante em portais corporativos

    Directory of Open Access Journals (Sweden)

    Luciane Paula Vital

    2012-01-01

    Full Text Available Este trabalho busca discutir os objetivos e requisitos necessários a um portal corporativo e de que forma a construção de uma taxonomia possibilita atingi-los, configurando-se em um modelo de representação da informação e do conhecimento nesse contexto. Apresenta a evolução das intranets em direção aos portais, construindo um ponto de acesso comum as informações organizacionais. Apresenta uma revisão sobre as funcionalidades que um portal corporativo deve apresentar. Conceitua e caracteriza os diferentes tipos de taxonomia e a forma com que organiza e representa a informação. Por fim, apresenta a taxonomia como ferramenta para a determinação de categorias conceituais e de relacionamentos semânticos de uma área, assim como, da estrutura navegacional, permitindo qualificar o processo de recuperação da informação. Palavras-chave Taxonomia. Portais Corporativos. Representação da Informação. Organização da Informação. Abstract This article discusses the objectives and requirements necessary for a corporate portal and how to build a taxonomy allows for to reach them, becoming a model of representation information and knowledge in this context. Shows the evolution of intranets into the portal, building a common access point to information organizational. Presents an overview of the features that an enterprise portal should present. Conceptualizes and describes the different types of taxonomy and the way it organizes and represents information. Finally, the taxonomy as a tool for determining the conceptual categories and semantic relationships of an area, as well as the navigational structure, allowing the process to qualify for retrieval. Keywords Taxonomy. Enterprise Portal. Information Representation. Information Organization.

  8. El paisaje como archivo del territorio

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    Esther Isabel Prada Llorente

    2004-09-01

    (1 Este trabajo es una parte seleccionada sobre un aspecto muy concreto, como es la escala territorial, de la tesis doctoral “Sayago, evolución histórica y proyección futura de su estructura territorial” leída en la Escuela Técnica Superior de Arquitectura de Madrid en octubre de 2002. (2 Sayago: Posible relación con yacimientos mineros de época celta derivando de la palabra céltica Salliacum. Sus formas medievales serían: Saliago, Salago, Salagu y Sayago (cfr. MARTÍN VISO, 1996. De sayo, sayal, capa o “sagum” celtibérico y lusitano de color pardo, buriel o vellorí de las ovejas llamadas negras. Se pagaban como tributos por los vencidos celtíberos a las tribus romanas. Con el “paño sayal” se confeccionaron (hasta finales del s.XIX, principios del XX, todas las prendas externas de la indumentaria sayaguesa (cfr. Del Brío Mateos, 1998. (3 Escuadro: Topónimo de origen romanizador posiblemente referido a algún tipo de parcelación romana (Informante: Juan Vicent, prehistoriador del C.S.I.C. “Ex-cuadro” o “fuera del cuadro”, según la tradición popular este poblamiento hubiera surgido a raíz de los acompañamientos que las tropas romanas necesitaban para su abastecimiento en todos los aspectos, dejando fuera del recinto en otro lugar, al conjunto de herreros, artesanos, prostitutas, etc. que constituían dicho acompañamiento

  9. O PRODUTO COMO CAUSADOR DE ACIDENTES

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    Widomar Carpes Jr

    2004-06-01

    Full Text Available Neste artigo analisa-se a contribuição dos produtos para a geração de acidentes, apresentando-se estatísticas de acidentes de trabalho, de trânsito e aeronáuticos. Além disso, para melhor ilustrar a relação entre produtos e a ocorrência de acidentes, alguns casos de acidentes ocorridos e divulgados pela mídia são comentados. As estatísticas e os casos comentados demonstram a importância do estudo dos acidentes envolvendo produtos, evidenciando que praticamente todos os acidentes estão relacionados com o uso de produtos industrializados. Então, se analisa histórica e criticamente as principais teorias de acidentes de trabalho, porque são as únicas teorias existentes em relação aos acidentes. Além delas, são analisados os diversos conceitos sobre o erro humano e sua ocorrência, pois estes são apontados como grandes causadores de acidentes. Nesta análise, se observa que os acidentes estão mais relacionados aos perigos ou às características perigosas dos produtos do que às atitudes e ao comportamento do usuário. Faz-se uma revisão dos conceitos associados aos acidentes, tais como perigo, risco, acidente e dano, a partir dos quais apresenta-se um fluxograma contendo os elementos necessários para a manifestação dos acidentes. Ao final, conclui-se que a participação dos produtos na ocorrência de acidentes é evidente e que o comportamento do usuário é dependente das características do produto e da situação na qual ele é utilizado.

  10. El desarrollo organizacional como facilitador del cambio

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    Henry Molina

    2000-01-01

    Full Text Available El Desarrollo Organizacional (DO ha surgido de las exigencias de un ambiente cambiante y del conocimiento originado por la evolución de las ciencias sociales aplicadas. Los cambios rápidos dentro del entorno organizacional han exigido procesos y estructuras organizacionales que sean mucho más flexibles y que brinden mayor capacidad de respuesta que las estructuras tradicionales. Se requieren nuevas capacidades individuales y organizacionales que puedan impulsar las iniciativas individuales y la disposición para asumir riesgos. Igualmente, debemos considerar que existen marcadas diferencias entre las características individuales de los gerentes, las características individuales de los profesionales del desarrollo organizacional, sus habilidades y conocimientos y los estilos de las intervenciones del desarrollo organizacional. Tbdas estas diferencias hacen que sea virtualmente imposible predecir con precisión el curso y los resultados de las intervenciones en las organizaciones cliente. En este documento presento un resumen de lecturas acerca del desarrollo organizacional como facilitador del cambio; y expongo un marco de referencia para la comprensión de los factores determinantes de la relación entre las intervenciones del DO y los cambios organizacionales con el fin de mejorar la predictabilidad y la efectividad de los esfuerzos de cambio de sus intervenciones. El propósito central de este documento es dotar a los agentes de cambio de conocimiento y herramientas para que comprendan las características del cambio, los métodos de aprendizaje tanto de las organizaciones como de la gente y de cómo los agentes de cambio deben diseñar sus intervenciones y posteriormente mejorar los resultados de las mismas

  11. Como reescribir funciones aleatorias multivariadas como univariadas para hacer cokrigeage. La teoría

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    Adrian Martínez-Vargas

    2010-03-01

    Full Text Available En el año 2005 Martínez-Vargas formuló un sistema de cokrigeage puro heterotópico para estimar una función aleatoria regionalizada (RF Z*(x definida como la combinación lineal de n RF's univariadas Zi(x, cuyos coeficientes 1i(x son indicatrices de un set disyuntivo de categorías i. Aparentemente este modelo se contradice pues asume que las covarianzas cruzadas existen en un mismo punto, a pesar de su carácter puramente heterotópico. Para evadir dicha contradicción se redefinió el set de RF Zi(x como una única RF Z(x,i, siendo los puntos (x,i y (x,j no coincidentes si i y j no son iguales. La heterotopía fue simplemente considerada como una omisión de la RF Z(x,. en los datos y en los puntos a estimar, no impuesta por el modelo; entonces el resultado es simplemente un caso particular del cokrigeage clásico. Con esta notación se reescribió el sistema de cokrigeage clásico como el sistema de krigeage de la RF univariada Z(x,i, asumiendo que esta posee un drift definido como m(x,i,j, donde los miembros fl(x,i,j de m(x,i,j pueden ser linealmente dependientes o independientes. Bajo esta notación el sistema de krigeage se reduce a un sistema univariado, la existencia de más de una variable o la presencia de heterotropía no impone la necesidad de manipulaciones extras para definir el sistema de ecuaciones de krigeage, incrementándose la eficiencia computacional.

  12. Japan is far... / Peeter Miller

    Index Scriptorium Estoniae

    Miller, Peeter

    2007-01-01

    Eesti suursaadik Jaapanis Eesti ja Jaapani suhete ajaloost, Jaapani keisri Akihito ja keisrinna Michiko ametlikust visiidist Eestisse 2007. a. mais. Juuresolevatel fotodel president Toomas Hendrik Ilves ja proua Evelin Ilves kõrgeid külalisi vastu võtmas

  13. Genetics Home Reference: Miller syndrome

    Science.gov (United States)

    ... Sangiorgi E, Neri G. Limb anomalies: Developmental and evolutionary aspects. Am J Med Genet. 2002 Dec 30; ... genome editing and CRISPR-Cas9? What is precision medicine? What is newborn screening? New Pages Alopecia areata ...

  14. A AUTOESTIMA COMO ALIADA DO PROCESSO ENSINOAPRENDIZAGEM

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    Gonçalina dos Santos

    2013-06-01

    Full Text Available O presente trabalho caracteriza-se como um desdobramento de um projeto de pesquisa da Universidade Estadual do Norte Fluminense (UENF, sobre o estudo de um olhar sobre objetos de aprendizagem como metodologia no ensino da matemática à luz da teoria dos registros de representação semiótica. Nosso trabalho visa verificar a influência da aplicação desta metodologia de ensino na autoestima dos educandos. Essa pesquisa foi desenvolvida dentro do método qualitativo e quantitativo descritivo exploratório, tendo a natureza do objeto e dos objetivos propostos neste estudo. A pesquisa foi realizada no Colégio Maria de Nazaré na Cidade do Rio de Janeiro, onde os alunos responderam o questionário de autoestima de Rosenberg (1989. A pesquisa foi composta por dois grupos um de análise experimental e outro de controle. No Brasil a temática da autoestima é pouco abordada cientificamente. Palavra fácil na psicologização das relações humanas. Por auto-estima entende-se a avaliação que o indivíduo faz de si mesmo. Expressa uma atitude de aprovação ou de repulsa de si e engloba o auto-julgamento em relação à competência e valor Em relação às pequenas diferenças apresentadas nos resultados encontrados nos grupo experimental, há dificuldade em se afirmar categoricamente a questão. Ao avaliar a média do grupo de controle no inicio da pesquisa, encontrava-se em 49,28% de autoestima, no final este mesmo grupo apresenta uma redução para 48,23%de autoestima. Já ao avaliar a média do grupo experimental no inicio da pesquisa este encontrava-se com 47,5% de autoestima, obtendo um aumento para 49,5% após a inserção do objeto de aprendizagem nas aulas.

  15. Quando um primitivo é como um orbe? Quando um primitivo é como um orbe?

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    J. Hillis Miller

    2008-04-01

    Full Text Available Minhas estratégias de analise textual se tornarão mais ou menos evidentes na leitura que se segue. Sua proveniência deveriam tornar-se & cia. 0 ensaio foi inicialmente pensado come parte do livro The Linguistic Moment (Princeton: Princeton University Press, 1985. Aqui, como no livro, minha preocupação maior e com aqueles momentos em poemas em que a poesia como meio de comunicação constitui problema. Interessa-me particularmente a forma pela qual as fronteiras entre a linguagem conceitual e a figurative se tornam pouco visiveis no poema "A Primitive like an Orb", da última fase da poesia de Wallace Stevens.

  16. ESPACIOS RENATURALIZADOS COMO AMBIENTES DE APRENDIZAJE

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    Yenny Rosas

    2015-12-01

    Los espacios renaturalizados, se consolidan como ambientes de aprendizaje para el ejercicio de la ciudadanía y la convivencia, a partir del desarrollo de metodologías participativas y haciendo uso de tecnologías apropiadas. Para ello se diseñaron e implementaron una serie de sesiones, con el fin de contribuir a la transformación del entorno y de permitir la conectividad ecológica presente en el ecosistema estratégico ubicado allí mismo, además de consolidar experiencias en el desarrollo de capacidades ciudadanas esenciales. Para la institución educativa se construyó, un jardín agroecológico y se sembraron árboles con fines productivos y ornamentales, permitiendo de esa manera la generación de identidad con respecto a los espacios renaturalizados, la estructura ecológica, además de reconocer las relaciones socio-ecológicas que alrededor de estos espacios se desarrollan. Entorno a la intervención, se construyeron conocimientos propios del currículo, además se identificaron las problemáticas ambientales propias de la zona, permitiendo de esa manera la armonización de la relación naturaleza-cultura y la adaptación ecosistémica al cambio climático, que requiere la ciudad de Bogotá.

  17. De como os alunos entendem os textos

    Directory of Open Access Journals (Sweden)

    Peronard Th, Marianne

    1991-01-01

    Full Text Available Nosso interesse na compreensão do texto escrito apresenta uma tendência pedagógica. Tal perspectiva guiou a seleção de nossa estrutura teórica, os limites de nosso trabalho experimental e a natureza dos instrumentos que usamos, tanto durante a avaliação das habilidades de compreensão dos alunos como durante as aplicações instrucionais. Nosso foco tem se localizado na compreensão inferencial, a qual medimos pedindo aos estudantes que verbalizassem as inferências necessárias para conbstruir uma interpretação coerente. Para garantir uma sanidade ecológica, temos nos mantido o mais próximo possível de uma situação escolar, um fato que, em resumo, parece ter sido autodestruidor. Nossos resultados mostram fracas habilidades de compreensão por parte dos sujeitos (aproximadamente 2600 alunos. Suas respostas manifestam pouco raciocínio inferencial e suas estratégias, baixa adaptação à estrutura ou conteúdo do texto. De fato a estratégia mais comum parece ser a que nós chamamos de "estratégia lexical restrita", que é mais uma "estratégia de resposta" do que uma estratégia de compreensão

  18. El budismo como una espiritualidad no religiosa

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    Marta Granés Bayona

    2014-09-01

    Full Text Available El budismo plantea acceder a una visión de la realidad desligada de creencias y supuestos de todo tipo. Para conseguirlo plantea una indagación libre en referencia al enclaustramiento de nuestro pensar y sentir al que nos somete el ego. El ego con sus necesidades y deseos genera un acceso a la realidad relativo a nosotros. Lo que se propone es una liberación de esta lectura para que la realidad pueda aparecer frente a nosotros de manera independiente de las imposiciones del ego, es decir, un acceso a ella ab-soluto (suelto de nosotros. El budismo es, pues, una propuesta de ‘espiritualidad no religiosa’, para la que el mismo término espiritualidad  resultaría inadecuado porque en él subyace la creencia en el ‘espíritu’. Vemos que por todo ello el mensaje budista resulta muy apropiado para las sociedades hoy presentes, bien para aquellas que están transitando de una sociedad agrícola a una industrial, que conlleva a debilitar las convicciones religiosas hasta disolverlas; bien para aquellas que están próximas o han entrado ya en las sociedades llamadas de conocimiento, innovación y cambio continuo cuya condición de movilidad impide  las creencias, porque son fijadoras, lo que arrastra como consecuencia la imposibilidad de tener religión ni espiritualidad. 

  19. Como obter vantagem competitiva utilizando business intelligence?

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    Avanilde Kemczinski

    2003-03-01

    Full Text Available Este artigo tem por objetivo definir Business Intelligence e identificar as tecnologias de informação e comunicação que dão suporte a este tipo de sistema de informação. Faz-se uma contextualização sobre o conceito e as tipologias de sistemas de informação (SI. Data Warehouse, Data Mart e Data Mining são os recursos tecnológicos denominados de Back-end system, utilizados para armazenar dados relevantes e extrair padrões de comportamento e tendências dos processos organizacionais. Os DSS (Decision Support Systems, EIS (Executive Information Systems e ferramentas de OLAP (On-Line Analytical Processing são caracterizados como Front-end systems para os sistemas de Business Intelligence, requerendo-se ampla funcionalidade, flexibilidade e usabilidade para que o usuário possa fazer a transformação das informações em conhecimento estratégico que apóie a tomada de decisão organizacional, objetivando a vantagem competitiva. Palavras-chave: Sistemas de Informação, Business Intelligence, Data Mining, Data Warehouse, OLAP.

  20. Daimien Hirst : el artista como preparador

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    Nike Verena Fakiner

    2006-01-01

    Full Text Available El cuerpo más allá de su razón biológica, es un espacio de proyección donde se escenifican las normas y los valores socioculturales y científicos. La ciencia médica constituye un régimen escópico, en cuyo marco se construye un imaginario acerca del cuerpo, que modela y normaliza la percepción que el sujeto moderno establece con él. Hirst trabaja desde el cuerpo muerto, como medio y material de trabajo, para cuestionar el posicionamiento del cuerpo en el discurso de la medicina. Para ello se sirve de imágenes corporales situadas en la frontera entre Medicina y Arte.The body, beyond its biological meaning, is a space of projection of cultural and scientific norms and values. The medicine constitutes a scopic regime, where an imaginary of body is built up which normalizes its perception by the modern subject. Hirst works with the dead body as medium and material of work, in order to question body` s position in medicine discourse. Therefore, he works with body images placed on the border line between Medicine and Art.

  1. La moneda como ofrenda en los manantiales

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    Manuel Abad Varela

    1992-01-01

    Full Text Available A la vista de como se han producido la mayoría de los hallazgos analizados y según se desprende de las fuentes escritas, diríamos que en la península ibérica y sobre todo en la parte Occidental se realizaron en la Antigüedad ofrendas monetales a divinidades de las aguas y fundamentalmente, por las referencias que tenemos, a las divinidades de las fuentes termales. Únicamente nos queda la duda de si la fuente de Peña Cutral en Retortillo (Reinosa, Santander es termal o no, pues si no lo fuese sería el único hallazgo dentro de una fuente no termal. Se podría entender, con ciertos reparos en algún caso, que también se hicieron arrojándolas al curso de los ríos, depositándolas en la orilla y lanzándolas a las charcas o pantanos. Por otro lado, las monedas que se han encontrado en las fuentes, en contraposición con las recogidas en los ríos, suelen estar en muy mala conservación, hasta el punto de que muchas se desintegran en las manos al estar muy atacadas por los ácidos. A juzgar por algunos de los hallazgos, se podría creer que las ofrendas más valiosas se procuró depositarlas en lugares seguros o resguardados, como es el caso de la Hermida, de la Fuente de El Sarso, del Balneario de Fortuna y podríamos recordar también el hallazgo del conocido depósito de Oñate. De acuerdo con la cronología de las monedas y según sus resultados estadísticos, la costumbre o rito de depositar o arrojar «stips» a las aguas, principalmente termales, se practicó en la península Ibérica más intensamente entre los siglos i a. C. al ii d. C. Este período coincide con el momento que más estuvo en boga el uso de las aguas termales, a juzgar por lo que se trató el tema en las fuentes escritas. Al mismo tiempo que se percibe esta moda en la vida diaria, pues Suetonio nos dice que Augusto, a pesar de que por su naturaleza enfermiza no abusaba de los baños, sin embargo, cuando necesitaba templar los nervios tomaba baños de mar o las

  2. EL RENDIMIENTO DE FRUTO POR CLADODIO DEPENDE DE SUS ATRIBUTOS FÍSICOS EN Opuntia ficus–indica (L. Miller VARIEDAD ‘ROJO PELÓN’

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    Ricardo David Valdez-Cepeda

    2014-01-01

    Full Text Available La especie Opuntia ficus–indica (L. Miller crece en un rango amplio de condiciones ambientales. Esto implica una gran variabilidad de rendimiento y maduración de fruto, entre otros aspectos. El objetivo de este trabajo de investigación fue identificar las dependencias del rendimiento de fruto por cladodio con respecto a la materia fresca o seca de cladodio de fructificación, y a la proporción entre longitud y ancho de cladodios de fructificación. La técnica de curva límite y los datos de 60 cladodios de fructificación terminales de un año de edad y sus 480 frutos de O. ficus–indica variedad ‘Rojo Pelón’ de 20 árboles de nopal de 6 años de edad distribuidos a una densidad de 625 plantas·ha –1 fueron usados. Muchos de los cladodios de fructificación con 144 g (mínimo a 964 g (máximo de materia fresca tuvieron rendimientos de fruto de 409 g o más por cladodio; mientras que la mayoría de los cladodios de fructificación con 14.4 g (mínimo a 78.5 g (máximo de materia seca tuvieron rendimientos de fruto de 409 g o más por cladodio. Longitudes de 21.8 cm a 38.4 cm y anchos de cladodio de fructificación de 15.2 cm a 20.8 cm están asociados al 90 % de los vértices correspondientes (los rendimientos de fruto mayores por cladodio. Esos valores pueden ser usados para realizar la poda con el objetivo de asegurar rendimientos grandes con frutos de peso fresco aceptable y tamaño comercial apropiado.

  3. Quince (Cydonia oblonga Miller) peel polyphenols modulate LPS-induced inflammation in human THP-1-derived macrophages through NF-{kappa}B, p38MAPK and Akt inhibition

    Energy Technology Data Exchange (ETDEWEB)

    Essafi-Benkhadir, Khadija [Laboratoire d' epidemiologie Moleculaire et Pathologie Experimentale Appliquee Aux Maladies Infectieuses, Institut Pasteur de Tunis (Tunisia); Refai, Amira [Laboratoire de Recherche sur la Transmission, le Controle et l' immunobiologie des Infections, Institut Pasteur de Tunis (Tunisia); Riahi, Ichrak [Laboratoire d' epidemiologie Moleculaire et Pathologie Experimentale Appliquee Aux Maladies Infectieuses, Institut Pasteur de Tunis (Tunisia); Fattouch, Sami [Laboratory LIP-MB National Institute of Applied Sciences and Technology, Tunis (Tunisia); Karoui, Habib [Laboratoire d' epidemiologie Moleculaire et Pathologie Experimentale Appliquee Aux Maladies Infectieuses, Institut Pasteur de Tunis (Tunisia); Essafi, Makram, E-mail: makram.essafi@pasteur.rns.tn [Laboratoire de Recherche sur la Transmission, le Controle et l' immunobiologie des Infections, Institut Pasteur de Tunis (Tunisia)

    2012-02-03

    Highlights: Black-Right-Pointing-Pointer Quince peel polyphenols inhibit LPS-induced secretion of TNF-{alpha} and IL-8. Black-Right-Pointing-Pointer Quince peel polyphenols augment LPS-induced secretion of IL-10 and IL-6. Black-Right-Pointing-Pointer Quince peel polyphenols-mediated inhibition of LPS-induced secretion of TNF-{alpha} is partially mediated by IL-6. Black-Right-Pointing-Pointer The anti-inflammatory effects of quince polyphenols pass through NF-{kappa}B, p38MAPK and Akt inhibition. -- Abstract: Chronic inflammation is a hallmark of several pathologies, such as rheumatoid arthritis, gastritis, inflammatory bowel disease, atherosclerosis and cancer. A wide range of anti-inflammatory chemicals have been used to treat such diseases while presenting high toxicity and numerous side effects. Here, we report the anti-inflammatory effect of a non-toxic, cost-effective natural agent, polyphenolic extract from the Tunisian quince Cydonia oblonga Miller. Lipopolysaccharide (LPS) treatment of human THP-1-derived macrophages induced the secretion of high levels of the pro-inflammatory cytokine TNF-{alpha} and the chemokine IL-8, which was inhibited by quince peel polyphenolic extract in a dose-dependent manner. Concomitantly, quince polyphenols enhanced the level of the anti-inflammatory cytokine IL-10 secreted by LPS-treated macrophages. We further demonstrated that the unexpected increase in IL-6 secretion that occurred when quince polyphenols were associated with LPS treatment was partially responsible for the polyphenols-mediated inhibition of TNF-{alpha} secretion. Biochemical analysis showed that quince polyphenols extract inhibited the LPS-mediated activation of three major cellular pro-inflammatory effectors, nuclear factor-kappa B (NF-{kappa}B), p38MAPK and Akt. Overall, our data indicate that quince peel polyphenolic extract induces a potent anti-inflammatory effect that may prove useful for the treatment of inflammatory diseases and that a quince

  4. High-quality draft genome sequence of Ensifer meliloti Mlalz-1, a microsymbiont of Medicago laciniata (L.) miller collected in Lanzarote, Canary Islands, Spain.

    Science.gov (United States)

    Osman, Wan Adnawani Meor; van Berkum, Peter; León-Barrios, Milagros; Velázquez, Encarna; Elia, Patrick; Tian, Rui; Ardley, Julie; Gollagher, Margaret; Seshadri, Rekha; Reddy, T B K; Ivanova, Natalia; Woyke, Tanja; Pati, Amrita; Markowitz, Victor; Baeshen, Mohamed N; Baeshen, Naseebh Nabeeh; Kyrpides, Nikos; Reeve, Wayne

    2017-01-01

    10.1601/nm.1335 Mlalz-1 (INSDC = ATZD00000000) is an aerobic, motile, Gram-negative, non-spore-forming rod that was isolated from an effective nitrogen-fixing nodule of Medicago laciniata (L.) Miller from a soil sample collected near the town of Guatiza on the island of Lanzarote, the Canary Islands, Spain. This strain nodulates and forms an effective symbiosis with the highly specific host M. laciniata . This rhizobial genome was sequenced as part of the DOE Joint Genome Institute 2010 Genomic Encyclopedia for Bacteria and Archaea-Root Nodule Bacteria (GEBA-RNB) sequencing project. Here the features of 10.1601/nm.1335 Mlalz-1 are described, together with high-quality permanent draft genome sequence information and annotation. The 6,664,116 bp high-quality draft genome is arranged in 99 scaffolds of 100 contigs, containing 6314 protein-coding genes and 74 RNA-only encoding genes. Strain Mlalz-1 is closely related to 10.1601/nm.1335 10.1601/strainfinder?urlappend=%3Fid%3DIAM+12611 T , 10.1601/nm.1334 A 321 T and 10.1601/nm.17831 10.1601/strainfinder?urlappend=%3Fid%3DORS+1407 T , based on 16S rRNA gene sequences. gANI values of ≥98.1% support the classification of strain Mlalz-1 as 10.1601/nm.1335. Nodulation of M. laciniata requires a specific nodC allele, and the nodC gene of strain Mlalz-1 shares ≥98% sequence identity with nodC of M. laciniata -nodulating 10.1601/nm.1328 strains, but ≤93% with nodC of 10.1601/nm.1328 strains that nodulate other Medicago species. Strain Mlalz-1 is unique among sequenced 10.1601/nm.1335 strains in possessing genes encoding components of a T2SS and in having two versions of the adaptive acid tolerance response lpiA-acvB operon. In 10.1601/nm.1334 strain 10.1601/strainfinder?urlappend=%3Fid%3DWSM+419, lpiA is essential for enhancing survival in lethal acid conditions. The second copy of the lpiA-acvB operon of strain Mlalz-1 has highest sequence identity (> 96%) with that of 10.1601/nm.1334 strains, which suggests genetic

  5. Josep Beuys : el arte como creencia y como salvación

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    María López Ruido

    1995-01-01

    Full Text Available Joseph Beuys, nacido en Cléveris (Renania del Norte-Westfalia en 1921 y faliecido en Dusseldorf en 1986, posee una obra madura casi desde un primer momento. Superficialmente podríamos verla como el canto a sí mismo de un gran narcisista, donde sus experiencias y su persona son los grandes protagonistas. En una lectura más profunda, estos hechos personales no son más que el medio para ir más allá del yo y dar lugar a una creación plástica de trascendencia social. Tras la 2- Guerra Mundial, en la que lucha como piloto de la Luftwaffe, estudia en la Academia de Bellas Artes de Dusseldorf. Será a partir de los años 60 cuando encontremos al auténtico Beuys, escultor objetual e instalador, el creador de la plástica social, y desde sus contactos con Fluxus en 1962, el Beuys accionista. En los 70, se nos presenta el artista más claramente politizado. La educación, la incidencia social del arte, el arte como «tercera vía o vía alternativa» entre socialismo y capitalismo, la ecología serán sus materiales de trabajo.

  6. Como Lo Hago Yo: Mielomeningocele En Bolivia

    Science.gov (United States)

    Dabdoub, Carlos F.; Dabdoub, Carlos B.; Villavicencio, Ramiro; Quevedo, Germán

    2014-01-01

    Introducción: Las malformaciones del tubo neural (MTN) representan la segunda causa más frecuente de anomalías congénitas, luego de las cardiopatías. En este grupo se destaca el mielomeningocele (MMC) por su mayor incidencia, y por ser la más incapacitante y la más compleja entre todas las demás malformaciones del sistema nervioso c`entral (SNC). En Bolivia, como en muchos países de Sudamérica, los bajos niveles socio-culturales y la debilidad en el sistema sanitario, hacen que su incidencia y su morbilidad, sean mayores que en las naciones más desarrolladas. Material y Métodos: Se realizó un estudio retrospectivo y descriptivo de 70 casos de MMC, atendidos por un equipo multidisciplinario en el Hospital Universitario Japonés (HUJ) de Santa Cruz de la Sierra, entre 2008-2011. De ellos, 60 fueron intervenidos quirúrgicamente. Resultados: Se realizaron controles prenatales sólo en 27 mujeres (38.6%), diagnosticándose una disrafia espinal en apenas dos casos (7.4%). La edad de ingreso del MMC en su mayoría fue después de las 24 horas (65.6%), predominando su localización en la región lumbosacra (64.3%). De ellos, 67.2% eran abiertos, presentando un 32.9% un daño neurológico motor parcial mientras que 47.1% tenían paraplejia por debajo de la lesión. De los 70 casos, tres (4.3%) no fueron intervenidos, por presentar defectos congénitos severos o estado general grave. Las principales complicaciones posoperatorias inmediatas fueron: dehiscencia de sutura y/o infección de la herida (16.6%), fístula de líquido cefalorraquídeo (LCR) (10%) e infección del SNC (11.7%). La mortalidad general y postoperatoria fue de 7.1% y 3.3%, respectivamente. Al mes de vida presentaban hidrocefalia un 80% de los pacientes operados, colocándose una derivación ventriculoperitoneal (DVP) de presión media. De 9 pacientes que tuvieron un acompanamiento de dos o más años, seis presentaron una médula anclada, que fueron intervenidas quirúrgicamente. Conclusi

  7. La participacion ciudadana como fuente de democracia

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    Orlando José Cadrazco Salcedo

    2009-01-01

    Full Text Available Resumen:La Participación ciudadana es un órgano de deliberación donde confluyen todos los factores reales de poder paradecidir sobre aspectos como el plan de desarrollo, plan de ordenamiento territorial y presupuesto (atendiendo alente territorial donde se establezca , en sí este modelo es un verdadero desarrollo del concepto de democraciaparticipativa que consagra nuestra Carta Política, es un ejemplo de que la soberanía popular consagrada en elartículo tercero de la Carta va más allá del formalismo legalista y los intrincados vericuetos de la ley 134 de 1994que nunca han permitido que se ponga en marcha un verdadero desarrollo de la democracia participativa, y quepor fin salgamos de ese esquema retrogrado de la representatividad y por supuesto que a través de este modelolleguemos a un verdadero contrato social que provenga de las bases.Palabras claves:Democracia Participativa. Carta Politica, Sociedad, Participaciòn Ciudadana, Modelo Democrático, ConstituciónPolítica.Abstract:Citizen participation is a deliberative body where all the real power to decide on aspects such as the developmentplan, development plan and budget (according to the local authority where it is established, this model is itself atrue development the concept of participatory democracy enshrined in our Constitution, is an example of popularsovereignty enshrined in the third article of the Charter goes beyond the legal formalities and vericuetos the intricaciesof the law 134 of 1994 which have never been allowed to put ongoing development of a true participatorydemocracy, and they finally get out of this backward scheme of representation and of course that through this modelto create a real social contract comes from the grassroots.Keywords:Participatory Democracy. Charter Politics, Society, Politics, democratic, Constitution.

  8. Teresa Wilms Montt: la visceralidad como activismo

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    Cecilia Macon

    2017-07-01

    Full Text Available Es usual señalar que el debate sobre las emociones solo pasó a formar parte del feminismo en los últimos años. Sin embargo, es notoria la referencia en la literatura feminista de la primera ola al espacio de lo íntimo en términos de una colisión de emociones profundamente política que puede ser definida en términos de “visceralidad”. El presente trabajo se enmarca en un proyecto que tiene como objetivo final señalar el modo en que la transmisión de los afectos formó parte fundamental de la constitución del feminismo en América Latina. Este artículo se ocupa analizar la producción de la escritora chilena Teresa Wilms Montt, muy particularmente su primera obra, “Inquietudes sentimentales” (1917. No se trata meramente de argumentar la presencia de la dimensión emocional, sino de indagar en la especificidad de ese momento de su escritura donde la categoría de ‘intimidad” se torna central a la hora de establecer principios feministas. Son las características de su recorrido -donde entran en colisión las emociones más diversas - y el vínculo que establece con las luchas políticas del feminismo de corte anarquista las que abren la posibilidad de entender esta etapa, dando cuenta de la constitución de una geografía afectiva para el activismo latinoamericano. Una geografía marcada, centralmente por el desafío a “estructuras del sentir” patriarcales a través de intervenciones que sacan a la luz el papel politico de la visceralidad en tanto acción.

  9. Tuberculosis como enfermedad ocupacional Tuberculosis as occupational disease

    OpenAIRE

    Alberto Mendoza-Ticona

    2012-01-01

    Existe evidencia suficiente para declarar a la tuberculosis como enfermedad ocupacional en diversos profesionales especialmente entre los trabajadores de salud. En el Perú están normados y reglamentados los derechos laborales inherentes a la tuberculosis como enfermedad ocupacional, como la cobertura por discapacidad temporal o permanente. Sin embargo, estos derechos aún no han sido suficientemente socializados. En este trabajo se presenta información sobre el riesgo de adquirir tuberculosis ...

  10. Caracterización morfoanatómica comparativa entre Aloe vera (L. Burm. F., Aloe arborescens Mill., Aloe saponaria Haw. y Aloe ciliaris Haw. (Aloeaceae

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    Stella Maris Carpano

    Full Text Available Aloe vera (L. Burm. F. (= Aloe barbadensis Miller conhecida como "a planta da imortalidade" no antigo Egito é utilizada em fitoterapia como humectante, antibacteriana, antifúngica, antiviral e antioxidante. Com a finalidade de contribuir para identificação da droga vegetal, foram realizados estudos morfoanatômicos da folha. A utilização de plantas com características terapêuticas reconhecidas determina que, por analogia, popularmente sejam utilizadas com a mesma finalidade outras espécies do mesmo gênero. Isto é o que ocorre com três espécies de Aloe spp., que se cultivam ou crescem acidentalmente na Argentina: A. arborescens Mill., A. saponaria Haw. e A. ciliaris Haw. (Aloaceae. Estabeleceram-se os caracteres morfoanatômicos de diagnóstico por microscopia óptica e microscopia eletrônica de varredura (apresentam-se desenhos e fotomicrografias dos mesmos. Obtiveram-se valores numéricos dos elementos histológicos de diagnóstico: magnitudes lineares e proporcionais. Realizaram-se reações histoquímicas de identificação dos princípios ativos para sua localização "in situ".

  11. Contabilidade gerencial como apoio ao "just in time"

    OpenAIRE

    Costa, Sérgio De Carvalho

    2010-01-01

    Descreve as técnicas da filosofia "Just in Time" e apresenta as modificações necessárias aos Sistemas Gerencias para que se tornem coerentes com a filosofia JIT, bem como meçam adequadamente a melhoria contínua da Empresa. Critica tanto o Custeio' Direto como o Custeio por Absorção, apresentando como alternativa o Custeio "ABC". Mostra como o JIT facilita o Custeio dos Produtos e destaca os aspectos estratégicos da Avaliação de Desempenho. Finalmente discorre sobre um estudo de...

  12. Teste tuberculínico. Como optimizar?

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    Raquel Duarte

    2009-03-01

    Full Text Available Resumo: Os testes utilizados no diagnóstico de infecção latente pelo Mycobacterium tuberculosis, o teste tuberculínico e o doseamento do interferão gama (IGRA identificam a existência de uma resposta imunológica adaptativa de memória contra os antigénios micobacterianos. Considerando as limitações dos dois testes, a melhor solução passa por tirar proveito das melhores características de cada um. A maior parte dos autores concorda com a utilização dos dois testes, utilizando os IGRA sobretudo na confirmação da positividade do teste tuberculínico (tirando proveito da sua maior especificidade.As características operativas do teste tuberculínico dependem da prevalência da doença na comunidade e dos objectivos da sua realização (as suas características são superiores quando utilizada no âmbito de rastreio ou como teste diagnóstico. Para interpretar correctamente um teste tuberculínico, o clínico deve conhecer a epidemiologia da tuberculose na comunidade e definir correctamente as indicações para a sua realização. Abstract: The tests used in the diagnosis of tuberculosis latent infection, the tuberculin skin test (TST and the interferon-gamma assays (IGRA, identify the existence of an adaptive immune response towards mycobacterial antigens. Considering the limitations of the two tests, the best solution is to take advantage of the best characteristics of each one. Most of the authors agree to the use of the two tests, using the IGRAS in the confirmation of a positive TST (because of its higher specificity. The operative characteristics of TST depend on the prevalence of the illness in the community and the aim of its use (its operative characteristics are higher when used in the tracing scope or as a diagnostic test. To interpret correctly a TST, the physician must know the epidemiology of tuberculosis in the community and correctly define the indications for its use. Palavras-chave: Tuberculose, teste tubercul

  13. O direito como juízo

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    Denise Maria Weiss de Paula Machado

    1988-07-01

    Full Text Available This study presents a synthetic and personal view of the consequences arising from the notion of law as justice. For Kelsen, in this "Theory of pure law", human conduct produce facts, justly or injust1y, that become characterized as legal norms. Human behavior is determined by acts of reason, that are defined by a representative (a judge, and then are used as valid norms of justice. The conception of law is, therefore, represented by an ideal object, rational and only apprehensible through abstract processes, following the views of Kelsenians. Without any intent to criticize the "great master of Vienna", a search of the text demonstrates that a neutral ideology, concerning the comprehension and application of law, does not and can not exists law can not depart from empirical reality when following its purpose of promoting the liberty and development of society.O presente texto tem por finalidade apresentar uma visão sintética e pessoal das conseqüências decorrentes da noção do direito como juízo. Para KELSEN, em sua "Teoria pura do direito", a conduta humana produz fatos jurídicos ou injurídicos, conforme assim os caracterizam as normas jurídicas. A conduta humana é determinada por uma razão de agir, que é definida pela representação juízo que o homem tem da norma jurídica 'vigente. A concepção do direito é, pois, representada por um objeto ideal, racional e somente apreensível através de um processo de abstração, segundo a visão Kelseniana. Sem a mínima pretensão de formular críticas ao grande Mestre de Viena, procura o texto demonstrar que a neutralidade ideológica, para a compreensão e aplicação do direito, não existe e nem pode existir, eis que o direito não pode se afastar da realidade empírica, a fim de que possa alcançar sua finalidade de promover a libertação e a evolução da sociedade.

  14. The Miller Range 090340 and 090206 meteorites: Identification of new brachinite-like achondrites with implications for the diversity and petrogenesis of the brachinite clan

    Science.gov (United States)

    Goodrich, Cyrena Anne; Kita, Noriko T.; Sutton, Stephen R.; Wirick, Sue; Gross, Juliane

    2017-05-01

    Miller Range (MIL) 090340 and MIL 090206 are olivine-rich achondrites originally classified as ureilites. We investigate their petrography, mineral compositions, olivine Cr valences, equilibration temperatures, and (for MIL 090340) oxygen isotope compositions, and compare them with ureilites and other olivine-rich achondrites. We conclude that they are brachinite-like achondrites that provide new insights into the petrogenesis of brachinite clan meteorites. MIL 090340,6 has a granoblastic texture and consists of 97 modal % by area olivine (Fo = molar Mg/[Mg+Fe] = 71.3 ± 0.6). It also contains minor to trace augite, chromite, chlorapatite, orthopyroxene, metal, troilite, and terrestrial Fe-oxides. Approximately 80% by area of MIL 090206,5 has a granoblastic texture of olivine (Fo 72.3 ± 0.1) plus minor augite and chromite, similar to MIL 090340 but also containing minor plagioclase. The rest of the section consists of a single crystal of orthopyroxene ( 11 × 3 mm), poikilitically enclosing rounded grains of olivine (Fo = 76.1 ± 0.6), augite, chromite, metal, and sulfide. Equilibration temperatures for MIL 090340 and MIL 090206, calculated from olivine-spinel, olivine-augite, and two-pyroxene thermometry range from 800 to 930 °C. In both samples, symplectic intergrowths of Ca-poor orthopyroxene + opaque phases (Fe-oxides, sulfide, metal) occur as rims on and veins/patches within olivine. Before terrestrial weathering, the opaques were probably mostly sulfide, with minor metal. All petrologic properties of MIL 090340 and MIL 090206 are consistent with those of brachinite clan meteorites, and largely distinct from those of ureilites. Oxygen isotope compositions of olivine in MIL 090340 (δ18O = 5.08 ± 0.30‰, δ17O = 2.44 ± 0.21‰, and Δ17O = -0.20 ± 0.12‰) are also within the range of brachinite clan meteorites, and well distinguished from ureilites. Olivine Cr valences in MIL 090340 and the granoblastic area of MIL 090206 are 2.57 ± 0.06 and 2.59 ± 0

  15. Speciation of Chromium and Vanadium in Medicinal Plants

    African Journals Online (AJOL)

    NICOLAAS

    The concentration of Cr(VI) in medicinal plants varied between 3.1 ± 0.5 µg g–1 and 9.4 ± 0.2 µg g–1 and that of V(V) ranged from. 1.1 ± 0.08 .... All samples were air .... Aloe vera. Aloe barbadensis miller. Leaves. 4.5 ± 0.2. 67 ± 4. 6.7. Beetroot.

  16. Circumvention of Taxol-Resistance in Human Breast Cancers by Improved Water Soluble Taxanes

    Science.gov (United States)

    2001-10-01

    Basidomycetes were found to have antitumor activity in animal models, including one extract derived from Lentinus edodes which completely inhibited the growth...other naturally occurring polysaccharide preparations from Lentinus edodes , Ganoderma lucidum, and Aloe barbadensis Miller, like CPS, also demonstrated...1969) Inhibition of mouse sarcoma 180 by polysaccharides from Lentinus edodes (Berk.) sing. Nature 222:687- 688 8. Chen WC, Hau DM, Lee SS. (1995

  17. El humanismo como paradigma de la enfermería como ciencia

    Directory of Open Access Journals (Sweden)

    Núñez Gómez Nicolás Arturo

    1999-12-01

    Full Text Available

    Humanism's philosophical conception is presented to development a paradigm of nursing science. The nursing from creation has been guided toward professional practice and category; of Care has been fundamental contribution. In this article our intends is to grow some fine general of reflection so that nurses contribute to development of a science called nursing and whose accent is man in their multiple dimensions.

    A partir del humanismo como concepción filosófica se presenta una propuesta para crear un paradigma de la enfermería como ciencia. Desde su creación, la enfermería se ha orientado hacia su práctica profesional y la categoría de cuidado ha sido su aporte fundamental. Este artículo se propone crear unas líneas generales de reflexión, para que las enfermeras aporten al desarrollo de una ciencia llamada enfermería y cuyo acento es el hombre en sus múltiples dimensiones.

  18. El silencio como estrategia en la obra de Juan Rulfo

    OpenAIRE

    Gómez López-Quiñones, Loreto

    2013-01-01

    Juan Rulfo utiliza el silencio como un espacio para oír y decir mejor en el contexto del México postrevolucionario. Inspirándonos en la terminología de Spivak, pretendemos mostrar el silencio de Rulfo como una estrategia de resistencia ante la representación occidental del Otro.

  19. Como nasceu e como morreu o "marxismo ocidental" How the "Occidental Marxism" was born and died

    Directory of Open Access Journals (Sweden)

    Domenico Losurdo

    2011-04-01

    Full Text Available Por muito tempo o “marxismo ocidental” celebrou a sua superioridade em relação ao marxismo dos países que se remetiam ao socialismo e que estavam todos situados no Oriente. Em decorrência dessa atitude arrogante, o marxismo ocidental nunca se empenhou seriamente em repensar a teoria de Marx à luz de um balanço histórico concreto: qual era o papel do Estado e da nação nesses países e no “campo socialista”? Como promover a democracia e os direitos humanos e como estimular o desenvolvimento das forças produtivas e o bem-estar das massas numa situação caracterizada pelo bloqueio capitalista? Ao invés de pôr-se essas questões difíceis, o marxismo ocidental preferiu abandonar-se à cômoda atitude autoconsolatória de quem cultiva em particular as suas utopias e rejeita, como uma contaminação, o contato com a realidade e a reflexão sobre a realidade. Disso derivou uma progressiva capitulação à ideologia dominante. Por fim, a autocelebração do marxismo ocidental desembocou na sua autodissolução. Palavras-chave: Marxismo ocidental. Campo socialista. Falta de balanço histórico. Autodissolução. For a long time the “occidental Marxism” celebrated its superiority over the Marxism established in countries located in the Orient, to where the socialism was related. Due to this arrogante attitude, the occidental Marxism has never endeavored to rethink Marx’s theory upon a concrete historical summary: what was the role of the State and Nation in these countries and in the “socialist field”? How to promote the democracy and the human rights and how to estimulate the development of the productive forces and people’s welfare within a situation featured by the capitalist interdiction? Instead of opposing to those difficult questions, the occidental Marxism preferred to remain at a comfortable and self-consolating attitude, cultivating their particular utopias and rejecting, as a contamination, the contact to and

  20. La mundialización del Darwinismo como proceso y como texto

    Directory of Open Access Journals (Sweden)

    Olga Matilde Restrepo Forero

    2009-10-01

    Full Text Available El fenómeno de la difusión del Darwinismo ha sido ampliamente estudiado. No solo existe una “Industria de Darwin” que se ha ocupado de investigar cómo se produjo la obra de Darwin, sino que también existe una “Industria de la Difusión del Darwinismo”, que investiga los procesos de recepción del Darwinismo en diversas partes del mundo. En el artículo se cuestiona la separación entre los estudios que examinan la producción del Origen de las especies y los que estudian su posterior difusión, considerados como procesos completamente independientes. Con base en unos pocos ejemplos, se muestra cómo Darwin fue produciendo y modificando su obra a partir de las contribuciones que fue recogiendo en diferentes partes del mundo y a partir de las respuestas que fue recibiendo a medida que su obra era comentada y discutida. Fianlmente se examina cómo al estudiar la mundialización del darwinismo surge el problema de cómo definir el fenómeno bajo estudio, si con una perspectiva normativa, que imponga un orden en la proliferación de sentidos que surge como consecuencia de la expansión, o con una perspectiva no-esencialista que más bien sitúe al darwinismo en relación con sus diferentes usos y apropiaciones locales.

  1. Modelamiento predictivo, distribución geográfica y estado de conservación de Tomopeas ravus Miller, 1900 (Chiroptera, Molossidae

    Directory of Open Access Journals (Sweden)

    Christian R. Loaiza Salazar

    2017-07-01

    Full Text Available Tomopeas ravus, el murciélago de orejas romas, se conoce solo de 13 localidades confirmadas en Perú y actualmente se encuentra listada como En Peligro (B2 ab (iii por la UICN. La distribución, extensión de ocurrencia y el área de vida de esta especie no han sido esclarecidos completamente. Presentamos el primer modelo predictivo basado en los registros conocidos y el primer acercamiento geográfico para la especie. Basados en los 13 registros confirmados se construyó un modelo de hábitat de máxima entropía determinando previamente las variables ambientales de mayor importancia para el modelo. Se estimó un índice predictivo aceptable (0.970 para el modelo final. Se determinó las zonas de mayor probabilidad de ocurrencia para esta especie y se estimó el área de distribución mediante el método del polígono mínimo convexo (PMC. El área prioritaria más importante identificada para la conservación de esta especie se sitúa al norte de Perú, entre los Departamentos de Tumbes y Piura. Se recomienda utilizar el presente modelo como herramienta útil para futuras evaluaciones de la conservación de esta especie.

  2. Partial pressure (or fugacity) of carbon dioxide, salinity and other variables collected from Surface underway observations using Carbon dioxide (CO2) gas analyzer, Shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement and other instruments from NOAA Ship MILLER FREEMAN in the Bering Sea, Coastal Waters of SE Alaska and others from 2009-05-16 to 2010-10-08 (NODC Accession 0117502)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — NODC Accession 0117502 includes Surface underway, chemical, meteorological and physical data collected from NOAA Ship MILLER FREEMAN in the Bering Sea, Coastal...

  3. El Derecho Agrario como derecho para la paz

    Directory of Open Access Journals (Sweden)

    Ricardo Zeledón Zeledón

    2015-01-01

    Full Text Available Contenido: El Derecho agrario surgido de la paz y para la consolidación de la paz, como fuente e instrumento para su cumplimiento. La visión de Carrozza como conjunto de reglas destinadas al fin de la paz, y la equidad. Explicación de un Derecho agrario vinculado a la paz por su origen en los Derechos Humanos Económicos y Sociales. Evolución del Derecho Agrario en los Derechos Humanos de la tercera generación (principalmente ambiente, desarrollo y paz, en las nuevas dimensiones del Derecho agrario del futuro. Derecho agrario como derecho para la paz y el respeto de los derechos humanos. Desarrollo sostenible y agricultura del futuro. La nueva orientación de los institutos del derecho agrario como instrumentos de paz, dirigidos a cumplir los fines de la justicia social, el desarrollo económico y el equilibrio ambiental. Desarrollo como respuesta a los problemas del ambiente, alimentario, de la pobreza, indígena y de la mujer rural. El rol de la justicia agraria y ambiental como derecho para la paz. El derecho agrario, disciplina forjada en una concepción iushumanista, acorde con los derechos humanos y la paz. El derecho agrario como derecho para la paz.

  4. La Seguridad ciudadana como función del Estado

    OpenAIRE

    Ridaura Martínez, María Josefa

    2014-01-01

    Este trabajo se centra en uno de los temas medulares de la organización del Estado como es la garantía de la seguridad, y tiene como objeto reivindicar, al calor la reciente sacudida legislativa en materia, la función de la Seguridad ciudadana como una función pública a desarrollar por las Fuerzas y Cuerpos de Seguridad; en tanto que exigencia constitucional, presupuesto de la salvaguarda de los derechos fundamentales y de las libertades públicas.

  5. El anisakis y sus enfermedades como enfermedad profesional

    OpenAIRE

    Vicente Pardo, José Manuel

    2016-01-01

    El anisakis es un parásito complejo de los animales marinos. El hombre no es el hospedador adecuado, ya que en él la larva L3 no puede completar su ciclo vital, siendo por tanto un hospedador accidental u ocasional, que se interpone en el ciclo vital del nemátodo, y al que el anisakis le puede causar tanto la parasitación como la alergia, cuando ingiere pescado o cefalópodos crudos o poco cocinados: tales como sushi, sashimi, ceviche gravlax noruego, lomi-lomi hawaiano, así como pescados en e...

  6. Present trophic conditions of the Como and Lecco basins of lake Como; Attuali condizioni trofiche dei bacini di Como e Lecco del Lario

    Energy Technology Data Exchange (ETDEWEB)

    Mosello, R.; Brizzio, M.C. [Consiglio Nazionale delle Ricerche, Verbania (Italy). Ist. Italiano di Idrobiologia; Garibaldi, L. [Milan Univ. La Bicocca, Milan (Italy). Dipt. di Scienze dell' Ambiente; Buzzi, P. [Azienda Sanitaria Locale, Lecco (Italy). Unita' Operativa Fisica e Tutela Ambiente; Colzani, L.; Pizzotti, E. [Azienda Sanitaria Locale, Como (Italy). Unita' Operativa Chimica; Mocellin, D. [Azienda Sanitaria Locale, Sondrio (Italy). Unita' Operativa Chimica

    1999-12-01

    Monthly measurements of temperature, water chemistry and phytoplankton performed from september 1997 to August 1998 in lake basins close the towns of Como and Lecco (Italy) are presented and discussed. Chemical variables show a high trophic level in both stations, more pronounced in the Como station due to unfavourable hydrological conditions and to urban and industrial sources of pollution, which show the predominance of Oscillatoria rubescens. [Italian] Il presente lavoro riporta i risultati di un'indagine condotta con campionamenti mensili dal settembre 1997 all'agosto 1998 nei bacini di Como e Lecco. Le variabili chimiche analizzate evidenziano, per entrambe le stazioni considerate, un elevato livello di trofia piu' pronunciato nella stazione di Come a causa di sfavorevoli condizioni idrologiche e per la presenza di sorgenti di inquinamento urbano e industriale, confermato dalla predominanza di Oscillatoria rubescens.

  7. El trabajo de campo como proceso. La "etnografía colaborativa" como perspectiva analítica

    Directory of Open Access Journals (Sweden)

    Leticia Katzer

    2011-10-01

    Full Text Available El presente artículo contiene una serie de reflexiones elaboradas al poner en diálogo experiencias de campo en el marco de investigaciones individuales; una, con indígenas adscriptos como Huarpes, en el noreste de la provincia de Mendoza; la otra, con indígenas adscriptos como Qom. Éstas reflexiones intentan contribuir a desnaturalizar y visibilizar la complejidad de los contextos de interacción, considerando que abarcan distintas dimensiones y aspectos —tales como posición de los interlocutores en la estructura social, expectativas individuales, experiencias y relaciones previas de los sujetos, y recursos materiales y simbólicos en intermediación—, enfatizando así el carácter situacional y dinámico de esas relaciones de interlocución.A la luz de los actuales debates de la crítica cultural y en un intento por contribuir a los estudios de la Etnografía Colaborativa, el objetivo de este artículo es exponer y describir comparativamente lo que entendemos como performances de campo, situando como objeto de análisis la experiencia etnográfica en sí misma. Entendiendo el trabajo etnográfico como proceso y texto, identificamos tres grandes nudos críticos, reunidos en tres escenas etnográficas, que analizamos como una red multisituada de mediaciones e interrelaciones.

  8. La reforma agraria como factor del desarrollo regional

    Directory of Open Access Journals (Sweden)

    José Ambrósio Ferreira Neto

    2017-01-01

    Full Text Available Este trabajo debate la reforma agraria brasilera como instrumento de desarrollo regional, discutiendo la política actual de asentamientos rurales y su importancia en los procesos de interacción con las dinámicas locales y regionales, investigando las transformaciones que esos proyectos pueden provocar en los municipios donde están inmersos. El trabajo toma como punto central de discusión los argumentos de Polanyi sobre los factores de producción, tierra, capital y trabajo, y de Amartya Sen sobre libertad como factor de desarrollo. La discusión emprendida defiende la reforma agraria como forma de conceder oportunidades y una condición de agentes a sus beneficiarios. Argumentamos que el acceso a la tierra, y a los medios de producción, garantiza al trabajador el control sobre su fuerza de trabajo.

  9. Quests em World Of Warcraft como estrutura narrativa seriada

    Directory of Open Access Journals (Sweden)

    Jônatas Kerr de Oliveira

    2010-10-01

    Full Text Available Assumindo que as quests em World of Warcraft funcionam como uma estrutura narrativa dentro do jogo, busca-se verificar se esta estrutura apresenta características que possam caracterizá-la como uma narrativa seriada. Para tal, é feita uma análise das principais características da narrativa seriada televisiva, assim como da estrutura de quests, para verificar a viabilidade de tal aproximação. Sendo a estrutura narrativa de quests em MMORPGs uma estrutura narrativa seriada, abre-se um grande leque de possibilidades, tanto para as análises teóricas dos videogames, utilizando o ferramental adaptado, como para os game designers utilizarem este referencial para acrescer detalhes aos mundos ficcionais criados.

  10. La importancia del patrocinio deportivo : el surf como última tendencia

    OpenAIRE

    Lvov a Zemlianskaia,Victoria

    2015-01-01

    Se pretende dar a conocer el motivo del constante incremento del patrocinio deportivo, concretamente en el mundo del surf. Esta estrategia de marketing es empleada por muchas marcas como clave del éxito en la diferenciación

  11. Como Podar Arboles (Spanish Version), How to Prune Trees

    Science.gov (United States)

    Maureen McDonough; Russell; Lisa Burban; Lee Nancarrow; United States Department of Agriculture, Forest Service, Northeastern Area, State and Private Forestry

    2004-01-01

    Introduccion, El proposito de la poda es tener plantas fuertes, sanas y atractivas. Esta meta se puede alcanzar sabiendo como, cuando y por que podar, y siguiendo unos cuantos principios muy sencillos.

  12. UNIVERSIDADE CORPORATIVA COMO ALAVANCA DA VANTAGEM COMPETITIVA

    Directory of Open Access Journals (Sweden)

    Maria Elisabeth Pereira Kraemer

    2004-05-01

    -style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

    RESUMO

    A educação formal para o trabalho, em nível superior, começa a enfrentar uma concorrência inusitada: as universidades corporativas, surgidas das experiências de programas de treinamento e desenvolvimento profissionais corporativos e da constatação de que a universidade não prepara adequadamente para o trabalho. O conceito de universidade corporativa surgiu nos EUA, em 1995, quando a General Eletric criou a Cotronville. Mas foi só a partir da década de 80 que se assistiu a um aumento considerável destes novos espaços de formação. Outro componente que contribuiu para o rápido crescimento das universidades corporativas é a necessidade de contínua aprendizagem, como conseqüência das vertiginosas mudanças no mundo do trabalho, em razão dos avanços tecnológicos permanentes e do processo de globalização da economia. As universidades corporativas surgem como solução para o alinhamento das iniciativas de treinamento com a estratégia da organização e de criação de vantagem competitiva, por meio de aprendizado permanente.

    Palavras-chave: avanços tecnológicos, universidade corporativa, vantagem competitiva

     

    ABSTRACT

    The formal education for the work in superior level

  13. The use of Gamma radiation of Cobalt-60 to control avocado moth Stenoma catenifer Walsingham, 1912 (Lepidoptera: Elachistidae) and its effects on the quality of the fruit of Persea americana (Miller) (Lauraceae).; Uso da radiacao gama do Cobalto-60, para controlar a broca-do-abacate Stenoma catenifer Walsingham, 1912 (Lepidoptera: Elachistidae) e seus efeitos na qualidade do fruto de Persea americana (Miller) (Lauraceae)

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Lilian Karla Figueira da

    2004-07-01

    This work aimed to evaluate the influence of Gamma radiation of Cobalt-60, in the avocado moth Stenoma catenifer Walsingham, 1912 (Lepidoptera: Elachistidae) and its effects on the quality of the fruit Persea americana (Miller) (Lauraceae). For this research, insects were irradiated in ali phases of their life cycle with doses varying from O to 600 Gy and they were maintained at the temperature of 25 +- 2 deg C, humidity of 70 +- 10% and photo phase of 14 h. The species was raised on natural diet, avocado seeds. The cultivar fruits Geada were irradiated with doses that varied from 0 to 150 Gy, maintained for 15 days at room temperature (20 a 35 deg C and humidity of 70 - 80 %) and 30 days at a temperature of 10 deg C, humidity of 40 - 60 %. The chemical-physics and sensorial analyses were carried out. According to the obtained results, it was verified that the lethal dose of gamma radiation to S. catenifer eggs, was of 75 Gy; for caterpillars and pupas was of 300 Gy. The sterile-dose for upcoming adults from irradiated S. catenifer eggs was of 25 Gy; for upcoming adults from irradiated caterpillars, it was of 100 Gy; for adults coming from irradiated pupas was of 150 Gy and for irradiated adults was of 200 Gy. The irradiation in the avocado fruit, maintained at room temperature for 7 days of storage, caused change in the coloration of the fruit (dark spots and yellowish coloration) and more firmness. The sensorial characteristics were kept and the irradiated fruit was the chosen one as favorite for tasting. The irradiated fruits that were kept at 10 deg C, obtained an increase in the storage period, without changing their chemical physics characteristics. The coloration of the fruits was kept, more firmness and a subtle acidity taste increase, being effective in the conservation of the fruits and in the maintenance of their sensorial characteristics. The use of the gamma radiation as treatment quarantine of S. catenifer it was efficient, should be treated them with

  14. LOS ACTORES DEL ESCENARIO PEDAGÓGICO COMO COMPONENTE DEL MODELO PEDAGÓGICO PARA INDISCIPLINAR EL DERECHO COMO CIENCIA

    Directory of Open Access Journals (Sweden)

    Jorge Eduardo Vásquez Santamaría

    2011-01-01

    Full Text Available Resultado del escenario pedagógico como plataforma inicial problematizadora a partir de la cual se identifican y describen fundamentos orientadores tradicionales y no tradicionales que permitan reevaluar el Derecho para acreditarlo como ciencia social, se exponen los resultados obtenidos en el trabajo de campo adelantado con abogados docentes y estudiantes de Derecho como sus actores pedagógicos, quienes representan los elementos “Quién” y “A quién” del modelo pedagógico, en este caso primordialmente tradicionalista, imperante en los currículos de los programas de Derecho deColombia.

  15. El antropomorfismo como generador de amor a la marca

    OpenAIRE

    Peláez Muñoz, Jenny

    2017-01-01

    Tradicionalmente el concepto de amor se ha considerado como un sentimiento que pertenece exclusivamente al ámbito de los seres humanos y que no puede ser aplicado a cosas ordinarias como un producto o una marca. Sin embargo, esta idea ha sido cuestionada por la literatura de marketing dado que diferentes estudios reconocen que los individuos pueden sentir amor hacia ideas, actividades, aficiones, animales y objetos (ver Fournier, 1998; Ahuvia et al., 2009). Los estudios académicos sobre marca...

  16. Pesquisa como instrumento da prática

    Directory of Open Access Journals (Sweden)

    Maura Maria Guimarães de Almeida

    1995-06-01

    Full Text Available O trabalho aborda a utilização da pesquisa como instrumento da prática profissional da enfermaria na área de assistência, administração e ensino. Situa a ciência como processo. Ressalta a responsabilidade da enfermeira na produção da conhecimento científico. Destaca os fatores que dificultam e facilitam a pesquisa, além dos aspectos éticos envolvidos.

  17. El buen entrenador como experto adaptativo que lidera al grupo

    Directory of Open Access Journals (Sweden)

    Sergio Jim\\u00E9nez S\\u00E1iz

    2010-01-01

    expertos en baloncesto, siguiendo los criterios de la literatura específica. Los resultados reflejan que los entrenadores destacan la capacidad de adaptación al contexto que les rodea, como algo prioritario para alcanzar el éxito como entrenadores. Los entrevistados subrayan que no abandonan su modelo de entrenamiento cuando cambian de contexto, sino que lo adaptan a una situación distinta.

  18. LAS CIUDADES COMO TERRITORIO DE LA EDUCACIÓN INTEGRAL

    Directory of Open Access Journals (Sweden)

    Maria Silvia Serra

    2015-12-01

    Full Text Available RESUMEN: Habitar las ciudades es un proceso en el que se encuentran anudadas cuestiones materiales y simbólicas. Este lazo debe ser atendido y puesto en valor en términos históricos y culturales ya que forma parte de nuestro aprendizaje como sujetos urbanos. En este sentido, tal como afirma Andreas Huyssen (2002: 191 "...la ciudad funciona como un tipo de prisma" que permite "enfocar" una multiplicidad de temáticas que no están solo ligadas al urbanismo o a la arquitectura, sino también a experiencias culturales y construcciones simbólicas que articulan el hecho concreto de vivir en las ciudades. Es así que, siguiendo a este autor, podemos afirmar que la ciudad es un texto que puede ser leído como un verdadero espacio de signos. Una casa, un barrio, un edificio, los espacios públicos, las calles y veredas, los monumentos son reservorios de un tiempo y una memoria que requieren de una multiplicidad de lecturas para transformarse en escenarios de aprendizajes integradores. Cuestionar a la ciudad como territorio de la educación integral así como reconocer las cuestiones centrales que se ponen a prueba cuando esto se postula como una política pública son los objetivos principales del presente artículo, para lo cual proponemos un recorrido a partir de considerar conceptos nodales como los de educación integral y pedagogía urbana.

  19. Derivados de pirazol bivalentes como inhibidores de ingesta

    OpenAIRE

    Rodríguez de Fonseca, Fernando; Jagerovic, Nadine; Fernández Fernández, Cristina; Bermúdez-Silva, Francisco Javier; Goya, Pilar

    2011-01-01

    Derivados de pirazol bivalentes como inhibidores de ingesta. Nuevos derivados alquílicos y cicloalquílicos disustituidos por pirazol-3-carboxamidas, así como su procedimiento de obtención. Estos compuestos presentan propiedades, entre otras, para la inducción de saciedad y control de la ingesta, modulación de la grasa corporal y regulación del metabolismo lipídico.

  20. EL APRENDIZAJE ORGANIZACIONAL COMO FACILITADOR DE RELACIONES SOCIALES RESPONSABLES

    Directory of Open Access Journals (Sweden)

    Eliecer Mayorca Capataz

    2014-08-01

    Full Text Available La importancia que tienen las relaciones sociales y el aprendizaje en la vida del ser humano: ser social, ser de relaciones, un ser abierto que se define por las relaciones con los demás, se considera imprescindible, abordar el tema para favorecer el desarrollo integral de la personas. Ello supone que, la vida para su permanente desarrollo implica en la persona, articular un entramado de relaciones, mediante la experiencia de aprendizaje y el reconocimiento de los valores fundamentales como el respeto por la humanidad, en un todo interrelacionado, en el que, de alguna forma, remite el actuar de las personas, a su racionalidad, a su espontaneidad, a la forma como se comunica y trabaja con los otros, a la manera constante de aprender, de buscar la calidad de vida, de amar su oficio como forma de influencia positiva, y establecer relaciones socialmente responsables. Para ello, se estableció como objetivo: realizar un análisis conceptual del aprendizaje organizacional como facilitador de las relaciones sociales responsables en la organización. Metodológicamente, el trabajo es de carácter documental y bibliográfico, soportadas en investigaciones previas; y como reflexión se estableció que el centro para aprender y relacionarse es el hombre.

  1. Indianización como proceso y como discurso en Chiapas, México

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    ALEJANDRO GARCÍA GUERRERO

    2002-01-01

    Full Text Available ESTE ENSAYO BUSCA COMPRENDER UN PROCESO SOCIAL EN EL QUE LOS indígenas mayas del centro de Chiapas, México, muestran su avance territorial, demográfico, laboral y político por medio del discurso de sus líderes. Se trata de un movimiento étnico que integra las dos dimensiones del proceso de globalización: la homogeneización y la heterogeneización cultural mundial. La perspectiva adoptada integra el análisis del discurso desde un punto de vista flexible y comprensivo de la producción cultural con el análisis del proceso de indianización regional como un sistema interétnico complejo, en el sentido melucciano de sistema. El objetivo principal es explicar cómo los líderes indígenas utilizan el discurso -para persuadir a sus huestes y a los otros- construyendo uno de identidad basado en un pasado significativo ordenado en y para el presente político.

  2. MIGRAÇÃO COMO CRIME, ÊXODO COMO LIBERDADE

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    Aryadne Bittencourt Waldely

    Full Text Available Resumo O tratamento securitário dispensado à migração – e aos deslocamentos em geral, incluindo o refúgio – não é excepcional nem secundário. Se a criminalização aparece como evento extraordinário, isso quer dizer apenas que as práticas de securitização não se limitam à punição e que não são exclusivas das instituições de repressão. Ao contrário, estão espalhadas por diversos dispositivos institucionais, práticas e discursos. No caso dos migrantes, refugiados e deslocados em geral, o que está em questão não é exatamente reprimir ou interditar, mas classificar os fluxos, os atos e os sujeitos e docilizar os corpos. E é a fuga em si mesma – seja o deslocamento voluntário ou não – que se torna objeto de tais dispositivos. Neste sentido, é preciso analisar e qualificar os eventos em relação à sua potência e à sua importância política: a criminalização e todos os atos de repressão, docilização e captura são reativos e secundários em relação à fuga; enquanto a fuga é o ato primeiro, o movimento antecedente e capaz de produzir liberdade, justiça e direitos.

  3. LA CTE "OTTO PARELLADA" (TALLAPIEDRA COMO BASE MATERIAL DE ESTUDIO

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    Alberto E Calvo González

    2011-03-01

    Full Text Available Se presenta el análisis de las posibilidades que tiene la CTE" Otto Parellada" como elemento fundamental en la formación de ingenieros electricistas, así como para otras especialidades.Se expone el modo en que actualmente se le aprovecha para la carrera de Ingeniería Eléctrica en ladisciplina de Centrales Termoeléctricas, así como para la carrera de Ingeniería Mecánica en la asignatura homónimadel 1er. año. Se exponen otras posibilidades de la planta que podrían ser explotadas aún por otras carreras comoArquitectura, al tener características que la avalan como Patrimonio Industrial.  In this paper is presented the analysis of the possibilities like fundamental element that Otto Parellada SteamPower Plant has for the electrical, as well as other specialties engineers' syllabus. The way that at present time isused for the electrical engineers education, in the thermal engineering subjects is exposed, as well as for themechanical engineering in the 1st year. Other possibilities of the plant that could still be exploited by otherscareers like architecture, due to the characteristic that endorse it as Industrial Patrimony are also exposed.

  4. A montagem cinematográfica como ato criativo

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    Maria Dora Genis Mourão

    2006-06-01

    Full Text Available O foco deste trabalho é refletir sobre a montagem cinematográfica como ato criativo, não a montagem pensada como simples agenciadora de planos, mas como criadora de sentidos. É na maneira como o cinema articula e aproxima as imagens e os sons que verificamos sua transformação em discurso. Criam-se novos sentidos, uma nova lógica onde os significados não são transparentes, nascida da associação de fragmentos. Justapõem-se duas realidades: a da vida propriamente dita e a do filme, a do discurso e, ainda dentro do filme, a justaposição de planos determinando novas leituras das Imagens. Partindo dos princípios da teoria da montagem cinematográfica de S. M. Eisenstein, faremos um rápido panorama de como o cinema, no decorrer de sua história, foi influenciado pelos conceitos desenvolvidos em sua teoria.

  5. Aprendizagem como/na prática

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    Jean Lave

    2015-12-01

    Full Text Available ResumoEste artigo considera como o estudo da cultura e da aprendizagem pode ser de particular relevância para o campo da antropologia sociocultural em geral. O termo mais importante na expressão “cultura & aprendizagem” talvez seja o logograma “&” – ou seja, coloca-se a questão sobre o que conecta cultura e aprendizagem, perguntando-se como esses termos estão relacionados. Como devemos compreender cultura e aprendizagem como instâncias produtoras delas próprias, e uma da outra, na prática? Recalibrando em termos relacionais, podemos dizer que não é possível abordar a “aprendizagem” ou “cultura e aprendizagem” sem o seu emaranhamento na vida político-econômica, nas lutas e disputas históricas, em suas coerências e incoerências, e na produção relacional e histórica da vida cotidiana. Através das lentes da teoria da prática social, os estudos etnográficos sobre aprendizagem na prática oferecem diferentes entendimentos sobre como certa vida e certas disputas e incoerências são produzidas.

  6. Los portales educativos como fuente de recursos materiales

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    Felipe Gértrudix Barrio

    2012-04-01

    Full Text Available Los portales educativos por sus características como “distribuidores” de información y “almacenes” de recursos, constituyen para la escuela actual un soporte ideal y eficiente de información relacionado con el mundo educativo. Por otro lado, los portales temáticos educativos, como referente específico de una materia, suponen la plataforma ideal en el que los miembros de un colectivo (profesores, maestros, educadores y familias puedan establecer un punto de encuentro para participar, reflexionar, así como cooperar en la actividad docente incentivando nuevas formas de trabajo en el aula. En este sentido presentamos un ejemplo de portal temático educativo dedicado a la educación musical: MOS.

  7. A verdade como um problema epistemológico

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    Geilson Fernandes de Oliveira

    2016-07-01

    Full Text Available O presente ensaio é fruto das discussões realizadas durante a disciplina de mestrado Epistemologia das Ciências Sociais e Humanas. Aqui, objetivamos discutir sobre a verdade como um problema epistemológico. Assim, a partir do conceitual teórico utilizado durante a disciplina, entre os quais destacamos Michel Foucault, Norbert Elias, Friedrich Nietzsche e Pierre Bourdieu, tecemos considerações sobre as concepções de verdade no pensamento social contemporâneo, bem como no que diz respeito as rupturas que favoreceram a emergência de seu estado corrente – concepção da verdade como produção social e histórica. Consonante a esta discussão, realizamos ainda uma breve discussão sobre as relações de poder e saber que favorecem a constituição da verdade.

  8. O SERTÃO COMO FORMA DE PENSAMENTO

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    Willi Bolle

    1998-10-01

    Full Text Available Focalizando um micromodelo do sertão, o "Liso do Sussuarão", este ensaio es tuda a construção da paisagem em Grande sertão: veredas como componente de um retrato do Brasil. Partindo do confronto entregeografia inventada e geografia rea l, examina-se a tese rosiana do sertãocomo um "pensamento" que "se forma mais forte do que o poder do lugar", comparando essa tese com o paradigma dos viajantes naturalistas, o determinismo positivista de Euclides da Cunha e a nova historiografia. Como traço estilístico dominante é detectado um modo de escreverque S€ pode chamar de "poética da dissolução", pela qual o romance de Rosa se configura como um poderoso dissolvente de outros tipos de discursos sobre o Brasil.

  9. La subjetividad como superación del reproductivismo

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    Gabriela Yamila Gómez

    2013-01-01

    Full Text Available El artículo tiene como objetivo recuperar la esfera de lo subjetivo como eje de la teoría y de la investigación social. Se proponen dos argumentos principales: a el abordaje de la subjetividad no equivale a subjetivismo; y b tampoco equivale a una mirada microsociológica que no dé cuenta de los procesos sociales generales. Partiendo de estas dos premisas, el estudio del mundo de la vida experimentado y realizado por los sujetos permitirá superar el reproductivismo, comprendiendo la relación entre las condiciones objetivas y subjetivas, así como la posibilidad y existencia del cambio social.

  10. LA PARTICIPACION EN LA SOCIEDAD COMO BASE DEL DESARROLLO

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    María Cecilia Múnera López

    2012-11-01

    Full Text Available A explicação dela participação na sociedade como a base para o desenvolvimento é o resultado dum processo longo de pesquisa, que no âmbito da teoria fundamentada, tem chegado a aspetos essenciais de ordem conceitual e metodológica, que sustentam o desenvolvimento e a participação. Assim, este artigo apresenta o desenvolvimento desde uma perspectiva resignificada, entendida como uma construção sociocultural múltipla, histórica e territorialmente determinada. De acordo com tal renovação teórica, se apresenta uma forma tipológica de participação, chamada "participação sinérgica", como uma opção plausível para impactar positivamente o desenvolvimento.

  11. LA UTOPÍA FEMINISTA COMO TRANSGRESIÓN

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    Maria Luisa Femenias

    2013-04-01

    Full Text Available Resumen Tal como sucede –según lo enunció Kate Millet hace más de cincuenta años- respecto de las vanguardias literarias de comienzos del siglo XX, las estudiosas actuales de la literatura utópica reconocen que el esquema tradicional seguido por los escritores varones es “utópico” en todos sus aspectos, menos en la deconstrucción de los roles de sexo-género. Sobre este marco general, revisaré la noción de “utopía feminista” como transgresión al modelo canónico y, a su vez, desafío al orden social considerado “natural”. Para ello, examinaré algunos problemas vinculados a la caracterización de la literatura utópica como tal, y el frecuente abandono de sus fundamentos filosóficos.

  12. Turismo musical y patrimonio cultural como recursos educativos

    OpenAIRE

    Ramos Ahijado, Sonsoles; Botella Nicolás, Ana María

    2017-01-01

    La música es el más singular tipo de patrimonio cultural, que motiva desplazamientos turísticos, ya que para muchos viajeros cumple un rol importante en sus itinerarios. El turismo y el consumo cultural adquieren de este modo una gran relevancia, como fuente de riqueza y seña de identidad de la sociedad. En este artículo forma parte de una investigación de mayores dimensiones sobre la música como recurso para la promoción turística. Así, teniendo presente las nuevas tendencias del interés tur...

  13. Historia como interrupción del tiempo

    OpenAIRE

    Aguilera Pedrosa, Antonio

    2006-01-01

    Frente a un concepto de presente como transición y a otro como repetición, Benjamín elabora uno donde el tiempo se detiene, clave para entender su concepto de historia. La interpretación habitual que separa tiempo histórico de tiempo físico quiere facilitar la comprensión de Benjamin, pero al precio de olvidar ciertas paradojas: la misma detención, la reversibilidad del tiempo, la redención del pasado entero, la invocación de la teología, la posibilidad de un cambio respecto al tiempo natural...

  14. Pegada Hídrica como Indicador de Sustentabilidade Ambiental1

    OpenAIRE

    Kettrin Farias Bem Maracajá; Vicente de Paulo Rodrigues da Silva; José Dantas Neto; niversidade Federal de Campina Grande

    2012-01-01

    O conceito de pegada hídrica tem sido recentemente introduzido como um importante indicador do consumo de água humano, na tentativa de minimizar os impactos ambientais. Esse trabalho aborda o conceito da pegada hídrica como um indicador de sustentabilidade, com vistas o uso racional dos recursos hídricos. Nos últimos anos, a escassez de alguns recursos naturais vem sendo bastante discutido em todo o mundo e quanto à água a preocupação é ainda maior em face do uso desordenado na irrig...

  15. El Leasing como herramienta de financiación

    OpenAIRE

    Chorén, María Cecilia

    2015-01-01

    El siguiente trabajo de investigación es planteado para ser utilizado por las Pymes para evaluar la oportunidad de aplicar el Leasing frente a una posibilidad de inversión en activos fijos; ya que hoy en día es tenido en cuenta en los países desarrollados como la herramienta de financiamiento más conveniente y perfecto que existe debido a sus amplios beneficios. Este trabajo tiene como objetivo primordial establecer las ventajas impositivas, jurídicas, financieras y operativas para que las...

  16. La comunicación, como herramienta de productividad

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    Lic. Johnny Vargas D.

    1998-01-01

    Full Text Available En el ámbito corporativo o empresarial está cobrando auge la comunicación y ya se concibe al gerente moderno como "el gran comunicador", dejando a sus asesores inmediatos la realización de tareas más especializadas. En las empresas contemporáneas, el personal requiere tener información oficializada que le permite comprender su diario quehacer y le oriente productiva y personalmente. Un sistema de comunicación integral en el ámbito empresarial es otro componente de la producción, tan importante como la materia prima o los recursos financieros.

  17. Modelo para sistemas da qualidade como base da estrategia competitiva

    OpenAIRE

    Marco Antonio Silveira

    1999-01-01

    Resumo: Vários autores propõem a empresa como um sistema em transformação, sendo que esse enfoque sistêmico parece oferecer um meio efetivo de prover as capacidades estratégicas que são valorizadas pelos mercados atuais. Por outro lado, vem crescendo a consciência para o enfoque da qualidade como base da estratégia competitiva, onde esta é associada à lucratividade e incluída no processo de planejamento estratégico, tornando-se um instrumento eficaz de concorrência que, para fazer frente à di...

  18. Octadecanoides como reguladores de la defensa de las plantas

    OpenAIRE

    G. Camarena Gutiérrez

    2002-01-01

    En años recientes muchas moléculas lipoides muy potentes han sido identificadas, comprenden compuestos lipofílicos no derivados de lípidos como los brasinoesteroides triterpenoides, otros que parcialmente son de origen lipídico como los lipo-oligosacáridos, factores de nodulación de especies de Rhizobium que pueden tener parientes endógenos en las plantas, y un tercer grupo, los octadecanoides, cuyas estructuras son derivadas de ácidos grasos vegetales. Las señales mediadas por lípid...

  19. Lazer como pratica educativa : as possibilidades para o desenvolvimento humano

    OpenAIRE

    Maira Ivone Lombardi

    2005-01-01

    Resumo: Os objetivos principais deste trabalho consistem em conhecer as inter-relações existentes entre lazer, educação, animação sociocultural e desenvolvimento humano integral e quais as possibilidades de se contribuir para a emancipação do indivíduo na sociedade, utilizando o lazer como prática educativa. Já os objetivos mais específicos são fundamentais à proposição de que o lazer como prática educativa, com base nos seis conteúdos culturais do lazer, pode contribuir para a formação de um...

  20. La prosodia como identificador biométrico

    OpenAIRE

    Farrús i Cabeceran, Mireia

    2011-01-01

    La biometría tiene como objetivo el reconocimiento de personas mediante uno o más identificadores biométricos como la voz, la cara o las huellas dactilares, entre otros. Gracias a la buena aceptación social y el poco intrusismo en los individuos, la voz ha sido, tradicionalmente, uno de los identificadores más utilizados en los sistemas biométricos. Estos sistemas de reconocimiento basados en la voz utilizan, habitualmente, características relacionadas con el espectro de la voz. No obstante, ...

  1. Los youtubers como nuevos referentes sociales de los nativos digitales

    OpenAIRE

    Arias Delgado, Clara

    2017-01-01

    El presente Trabajo Fin de Grado estudia la capacidad de influencia de los ‘youtubers’ españoles con más suscriptores en España y como el consumo de esta plataforma afecta y modifica las pautas tradicionales de consumo digital de los más jóvenes. Para abordar el estudio se ha realizado un exhaustivo análisis basado en los vídeos producidos por 10 youtubers tomados como muestra durante el mes de octubre de 2016. A través del presente estudio se pretende abordar la capacidad de los youtubers pa...

  2. Limitaciones del IMC como indicador exclusivo de estado nutricional

    OpenAIRE

    Moreno Romero, Susana; Dipierri, José Edgardo; Marrodán, María D.

    2007-01-01

    El presente trabajo tiene como objetivo determinar el potencial diagnóstico y las limitaciones del uso del Índice de Masa Corporal como único indicador del estado nutricional. Para ello se analizó una muestra constituida por 2155 sujetos de ambos sexos, con edades comprendidas entre los 6 y 18 años y pertenecientes a tres poblaciones jujeñas que difieren en ubicación altitudinal y nivel socieconómico (NSE): 1.) Susques, localidad rural situada a 3675 m.s.n.m; 2.) Alto Comedero, barrio perifér...

  3. La religión como asignatura no confesional

    OpenAIRE

    Rodríguez Acevedo, Cruz Javier

    2016-01-01

    Las Constituciones de los estados de la Organización de Seguridad y Cooperación Europea (OSCE) establecen como derecho fundamental la educación de sus ciudadanos o nacionales. En el contexto del correlativo deber estatal de facilitar una enseñanza integral, se discute si el estado se debe de ocupar de la enseñanza de la religión como asignatura. A este propósito en els eno de la OSCE se elaboró un documento, "Los principios orientadores de Toledo sobre la enseñanza acerca de las religiones y ...

  4. El rasgo invariante como respuesta subjetiva en el autismo

    OpenAIRE

    Torres, Mónica Miriam

    2015-01-01

    Trascendiendo las diversas presentaciones posibles del autismo, ya la psiquiatría clásica recortaba rasgos constantes, invariantes que se desplegaban en todos los casos. Estos fenómenos en cuestión fueron considerados desde la fundación del cuadro clínico por Leo Kanner en 1943, como gravísimos trastornos. A pesar de que además de aparecer de manera drástica impregnando el cuadro también surgían en otros casos al modo de rasgos discretos y sutiles - como lo mencionaba Hans Asperger en las des...

  5. Danzas como tradición y como disputa: la ilusión comunitaria china en el Soconusco chiapaneco

    OpenAIRE

    Lisbona Guillén, Miguel

    2015-01-01

    Referir la impronta dejada por los inmigrantes chinos que llegaron a Chiapas a finales del siglo XIX y principios del XX parece algo manido para quien conoce el estado y, muy especialmente, su región costera: el Soconusco. Sin embargo, lo obvio, por perceptible, como puede ser la existencia de una tradición gastronómica conocida como comida china, y convertida en marca de identidad en la región, no significa que la construcción de "lo chino" o de una "comunidad china" por parte de los hijos o...

  6. Tecidos moles (não resistentes: como se fossilizam?

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    Silvia Regina Gobbo

    2015-06-01

    Full Text Available A preservação de tecidos moles (não resistentes desperta atenção pela qualidade dos fósseis preservados, e pela raridade. Este trabalho faz ampla revisão do assunto, desfaz alguns dos mitos correntes sobre fossilização destes materiais, como anaerobiose e soterramento rápido, bem como assinala a relevância do papel da replicagem de estruturas morfológicas por colônias microbianas. No âmbito dos fatores que influenciam a preservação de tecidos não resistentes estão pH, processos de decomposição, soterramento rápido e mineralização rápida por meio de carbonatos ou fosfatos. É possível citar exemplos de fácies sedimentares nas quais há preservação de tecidos não resistentes, como os folhelhos pirobetuminosos, calcários litográficos, folhelhos e diatomitos. Destaca-se o papel das colônias microbianas, tanto na forma de microesferas, como aquelas não-esferulíticas. Os três mitos principais que se procurou desfazer no artigo são: (1 a presença de oxigênio; (2 o soterramento rápido e (3 as colônias microbianas.

  7. Pegada Hídrica como Indicador de Sustentabilidade Ambiental1

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    Kettrin Farias Bem Maracajá

    2012-08-01

    Full Text Available O conceito de pegada hídrica tem sido recentemente introduzido como um importante indicador do consumo de água humano, na tentativa de minimizar os impactos ambientais. Esse trabalho aborda o conceito da pegada hídrica como um indicador de sustentabilidade, com vistas o uso racional dos recursos hídricos. Nos últimos anos, a escassez de alguns recursos naturais vem sendo bastante discutido em todo o mundo e quanto à água a preocupação é ainda maior em face do uso desordenado na irrigação, bem como pela poluição da água potável através da indústria e agricultura. Partindo dessa análise, a pegada hídrica surge como um indicador de sustentabilidade da água doce em seus diferentes tipos de consumo para que seja utilizada de forma consciente. Com base na revisão da literatura sobre o tema abordado, conclui-se que para a redução da pegada hídrica se deve tomar medidas de controle do uso direto e indireto da água doce principalmente na agricultura irrigada.

  8. La dimensión cultural como catalizadora del desarrollo

    OpenAIRE

    Duque Escobar, Gonzalo

    2011-01-01

    Cuando se enuncia el desarrollo sostenible, se expresa en términos de tres pilares: el ecológico, el social y el económico, por lo que la cultura como campo que abarca a la ciencia, donde naturaleza y sociedad son variables culturales con relaciones dialécticas, siempre ha escapado.

  9. ECMO como puente a decisión

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    Charles E. Juvin-Bouvier

    2017-09-01

    La ECMO es una herramienta fundamental en el manejo del shock cardiogénico refractario para ganar tiempo con vistas a decidir una actitud definitiva pero puede condicionar situaciones de peligro vital como la hemorragia secundaria a la anticoagulación que requiere el dispositivo.

  10. La Evaluación como Medio de Aprendizaje

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    Camilo Díaz Rosero

    2017-12-01

    de 1992. Conclusiones: La educación superior al ser considerada como un servicio, reporta altas ganancias económicas y proliferación de instituciones de dudosa calidad, por lo que el Gobierno debe estar atento y ser más riguroso en su regulación.

  11. Tuberculosis como enfermedad ocupacional Tuberculosis as occupational disease

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    Alberto Mendoza-Ticona

    2012-06-01

    Full Text Available Existe evidencia suficiente para declarar a la tuberculosis como enfermedad ocupacional en diversos profesionales especialmente entre los trabajadores de salud. En el Perú están normados y reglamentados los derechos laborales inherentes a la tuberculosis como enfermedad ocupacional, como la cobertura por discapacidad temporal o permanente. Sin embargo, estos derechos aún no han sido suficientemente socializados. En este trabajo se presenta información sobre el riesgo de adquirir tuberculosis en el lugar de trabajo, se revisan las evidencias para declarar a la tuberculosis como enfermedad ocupacional en trabajadores de salud y se presenta la legislación peruana vigente al respecto.There is enough evidence to declare tuberculosis as an occupational disease among healthcare workers. In Peru, there are regulations granting employment rights regarding tuberculosis as an occupational disease, such as healthcare coverage for temporary or permanent disability. However, these rights have not been sufficiently socialized. This study presents information on the risk of acquiring tuberculosis in the workplace, and a review of the evidence to declare tuberculosis as an occupational disease among health care workers, presenting the current Peruvian law related.

  12. Limitaciones del IMC como indicador exclusivo de estado nutricional

    Directory of Open Access Journals (Sweden)

    Moreno Romero, Susana

    2007-01-01

    Full Text Available El presente trabajo tiene como objetivo determinar el potencial diagnóstico y las limitaciones del uso del Índice de Masa Corporal como único indicador del estado nutricional. Para ello se analizó una muestra constituida por 2155 sujetos de ambos sexos, con edades comprendidas entre los 6 y 18 años y pertenecientes a tres poblaciones jujeñas que difieren en ubicación altitudinal y nivel socieconómico (NSE: 1. Susques, localidad rural situada a 3675 m.s.n.m; 2. Alto Comedero, barrio periférico de San Salvador de Jujuy (1250 m.s.n.m. de NSE bajo; y 3. José Hernández, muestra representativa del estrato SE elevado de la misma capital. Se tomaron las medidas directas de talla, peso, perímetro braquial y pliegues de grasa subcutánea tricipital y subescapular, entre otras. A partir de éstas, se calculó el IMC y las áreas tisulares del brazo. Se establecieron las categorías nutricionales en función de los percentilos establecidos por el NHANES I y II para la talla, IMC, área magra y grasa del brazo y pliegues tricipital y subescapular. Al comparar los resultados obtenidos para cada variable se comprueba como el uso exclusivo del IMC enmascara importantes patologías nutricionales, tanto por defecto como por exceso.

  13. El etanol como materia prima petroquímica

    Directory of Open Access Journals (Sweden)

    Luis M. Carballo

    1981-07-01

    Full Text Available En este trabajo se presentan los aspectos relevantes de un programa a de investigación, aprobado por el CINDEC y COLCIENCIAS, sobre el desarrollo y estudio cinético de catalizadores para algunas reacciones químicas en las que el etanol está involucrado como reactante.

  14. Procalcitonina como marcador de sepsis en niños

    Directory of Open Access Journals (Sweden)

    Diana González Rangel

    2016-04-01

    Conclusión. La procalcitonina tiene un buen rendimiento diagnóstico como marcador de sepsis en niños —con mayor utilidad cuando toma valores negativos— y buen valor pronóstico al relacionarse con mortalidad.

  15. El proyecto Wiki Learning: Wikipedia como entorno de aprendizaje abierto

    Directory of Open Access Journals (Sweden)

    2016-10-01

    Full Text Available Los enfoques predominantes en el sistema educativo tradicional circunscriben las posibilidades de aprendizaje a entornos formales y cerrados. Sin embargo, las tecnologías móviles y plataformas digitales están transformando este paradigma, expandiendo las posibilidades de aprendizaje. A partir de esta condición y en el marco de la producción del conocimiento entre pares, sostenemos que Wikipedia puede ser utilizada como un entorno de aprendizaje abierto que cumple varios propósitos: a permite adquirir competencias básicas; b contribuye a la inteligencia colectiva; c acorta la brecha global de conocimiento; y, d facilita la construcción de redes globales de aprendizaje. Este estudio de caso tiene como objetivo presentar el proceso, estrategias y resultados del proyecto Wiki Learning, como modelo de aprendizaje abierto a través del uso de Wikipedia en una universidad mexicana. El proyecto abarcó desde la producción de artículos hasta talleres para el desarrollo de capacidades de profesores y estudiantes. Se realizaron encuestas a 57 docentes y 115 alumnos para identificar la percepción acerca de Wikipedia, su uso y posibilidades como herramienta educativa. Los resultados demostraron que a pesar de que todos son usuarios de Wikipedia, existe un desconocimiento general sobre su funcionamiento, estructura y comunidades, además de cierta desconfianza. Se presenta un desafío para romper el estigma y recuperar el valor de la gestión compartida del conocimiento, el propósito de la enciclopedia y su lugar como producto de la inteligencia colectiva.

  16. O jogo como ferramenta de ensino e aprendizagem em fonoaudiologia

    Directory of Open Access Journals (Sweden)

    Kelly da Silva

    2018-03-01

    Full Text Available Objetivo: descrever a percepção de discentes sobre a utilização da estratégia do jogo detetive em metodologias ativas para revisão de conteúdo. Método: 22 discentes de ambos os sexos e com média de 23 anos participaram de um jogo de tabuleiro como recurso didático-pedagógico para revisão de conteúdo de um módulo teórico-prático de um curso de graduação em Fonoaudiologia, sobre o tema Linguagem no adulto e idoso. Questões conceituais e casos clínicos foram apresentados para a resolução dos participantes, para que pudessem integrar a teoria com a prática clínica. Os participantes responderam a uma questão norteadora sobre a dinâmica proposta e os resultados foram tratados com técnica de Análise de Conteúdo. Resultados: a estratégia foi descrita como uma intervenção dinâmica, que se opõe ao modelo não participativo, sendo considerada como de eficiência consistente e significativa para a revisão do conteúdo almejado, como favorecedora para a construção do conhecimento coletivo e adequado ao propósito do módulo. Conclusão: as respostas obtidas evidenciaram a percepção positiva dos discentes da pesquisa quanto à utilização do jogo “Detetive da Linguagem” como método de ensino e aprendizagem.

  17. La agrobiodiversidad como elemento de la seguridad alimentaria y ambiental

    Directory of Open Access Journals (Sweden)

    De la Rosa Fernández, Lucía

    2016-06-01

    Full Text Available In this article, the importance and situation of the conservation of plant genetic resources for food and agriculture is reviewed, taking into consideration not only the aspects specifically related to the conservation activity but also their role as components of biodiversity and providers of ecosystem services. Special attention is drawn to ex situ collections as providers of germplasm for direct use and for plant breeding, two elements that make an essential contribution to a greater resilience of agriculture to environmental changes. In particular, the state of conservation at national and global levels of genetic resources of Fabaceae species cultivated for human food and animal feed, is examined.En el artículo se revisa la importancia y la situación de la conservación de recursos fitogenéticos para la alimentación y la agricultura, tanto en los aspectos asociados específicamente a esta actividad como en aquellos otros derivados de su faceta como componente de la biodiversidad y proveedor de servicios ecosistémicos. Se incide en la función de las colecciones ex situ como fuente de materiales tanto para su utilización directa como en programas de mejora genética, ambos elementos imprescindibles para una agricultura resiliente frente al cambio ambiental. De forma específica, se describe el estado de la conservación de germoplasma de las especies de la familia de Fabaceae tanto para utilización en alimentación humana como en alimentación animal, en el ámbito nacional e internacional.

  18. Modelling hourly dissolved oxygen concentration (DO) using dynamic evolving neural-fuzzy inference system (DENFIS)-based approach: case study of Klamath River at Miller Island Boat Ramp, OR, USA.

    Science.gov (United States)

    Heddam, Salim

    2014-01-01

    In this study, we present application of an artificial intelligence (AI) technique model called dynamic evolving neural-fuzzy inference system (DENFIS) based on an evolving clustering method (ECM), for modelling dissolved oxygen concentration in a river. To demonstrate the forecasting capability of DENFIS, a one year period from 1 January 2009 to 30 December 2009, of hourly experimental water quality data collected by the United States Geological Survey (USGS Station No: 420853121505500) station at Klamath River at Miller Island Boat Ramp, OR, USA, were used for model development. Two DENFIS-based models are presented and compared. The two DENFIS systems are: (1) offline-based system named DENFIS-OF, and (2) online-based system, named DENFIS-ON. The input variables used for the two models are water pH, temperature, specific conductance, and sensor depth. The performances of the models are evaluated using root mean square errors (RMSE), mean absolute error (MAE), Willmott index of agreement (d) and correlation coefficient (CC) statistics. The lowest root mean square error and highest correlation coefficient values were obtained with the DENFIS-ON method. The results obtained with DENFIS models are compared with linear (multiple linear regression, MLR) and nonlinear (multi-layer perceptron neural networks, MLPNN) methods. This study demonstrates that DENFIS-ON investigated herein outperforms all the proposed techniques for DO modelling.

  19. Quadratic Sagnac effect — the influence of the gravitational potential of the Coriolis force on the phase difference between the arms of a rotating Michelson interferometer (an explanation of D C Miller's experimental results, 1921 – 1926)

    International Nuclear Information System (INIS)

    Malykin, G B; Pozdnyakova, V I

    2015-01-01

    It is shown that when an equal-arm Michelson interferometer is involved in rotation (for example, Earth's rotation around its axis or around the Sun) and its arms are oriented differently with respect to the plane of rotation, a phase difference arises between the light rays that pass through different arms. This phase difference is due to the fact that the arms experience variously the Newtonian (nonrelativistic) scalar gravitational potential of the Coriolis forces. It is shown that the phase difference is proportional to the length of the interferometer arm, the square of the angular velocity of the rotation, and the square of the distance from the center of rotation — hence, the proposal to call this phenomenon the quadratic Sagnac effect. In the present paper, we consider, as an illustrative example, the results of the once well-known experiments of D C Miller, who claimed to observe the translational motion of Earth relative to the hypothetical ‘luminiferous ether’. It is shown that this claim can actually be explained by the fact that, because of the orbital revolution of Earth, the time dilations in the orthogonal arms of the Michelson interferometer are influenced differently by the scalar gravitational potential of the Coriolis forces. (methodological notes)

  20. LA INTELIGENCIA COMO CAMPO DE ACCION DE LA PEDAGOGIA

    Directory of Open Access Journals (Sweden)

    Servio Tulio Salazar Valencia

    2000-05-01

    Full Text Available Si la inteligencia se concibe como un conjunto de habilidades de pensamiento y de aprendizaje, utilizados para solucionar problemas tanto académicos como de la cotidianidad, constituye ésta un centro de especial interés para quienes hemos asumido la delicada tarea de intentar formar, y si es posible, transformar las conductas de las juventudes estudiosas de nuestro país. En el presente ensayo se critican algunos comportamientos de los docentes que, esconociendo que la inteligencia "es una extensión de algunas características biológicas fundamentales del ser" (Piaget, pretenden poseer una metodología única e irrefutable en su labor pedagógica.

  1. Os eventos programados, como alternativo do desenvolvimento do turismo

    Directory of Open Access Journals (Sweden)

    Andrés Pinassi

    2014-10-01

    Full Text Available Turismo e lazer são vistos como uma alternativa para o desenvolvimento econômico, social e cultural de uma comunidade. Ambas práticas de lazer são consolidadas como processos sócio-espaciais que podem trazer muitos impactos benéficos para os moradores de uma determinada localidade. Assim, a dinâmica de eventos programados em aldeias visa proporcionar uma alternativa oportunidades de desenvolvimento local para comunidades carentes. Nesse contexto, a pesquisa desenvolvida, em seguida, analisa o desenvolvimento de um festival especial, realizada na Provincia de Buenos Aires (Argentina. Este festival, iniciado a partir da esfera pública municipal, mostrou benefícios económicos significativos e definir um entretenimento alternativa valiosa para a população local e da área de influência.

  2. La docencia como práctica profesional

    Directory of Open Access Journals (Sweden)

    Martínez de Acosta Carmen H.

    1993-12-01

    Full Text Available

    No es fácil determinar si la actividad docente corresponde o no a una modalidad de práctica, rol, área de desempeño o ejercicio profesional como indiscriminadamente se denomina a las diferentes formas del quehacer de enfermería. Uno de los conceptos básicos de sociología es el de rol. El rol consiste en las conductas cumplidas o conductas percibidas como aceptables, referidas a una situación dada. La identificación de un rol se alcanza por medio de un proceso mutuo de validación y socialización profesional.

  3. La radio como expresión libre del Aymara.

    Directory of Open Access Journals (Sweden)

    Nestor Hugo Quiroga

    2015-05-01

    Full Text Available En el campo de los principios teóricos sobre las posibilidades educativas de la radio, es indispensable precisar algunos conceptos fundamentales como: una pedagogía de la expresión y de la comunicación; una pedagogía integral; y los sistemas abiertos de comunicación. La siguiente etapa, dentro de este análisis, es la aplicación de estos principios fundamentales a la tarea concreta de crear un sistema abierto que procese y genere intercomunicación (que, por tanto, eduque y autoeduque, en un ambiente definible como la vasta comunidad aymara, a través de un subsistema comunicador específico llamado radio.

  4. Octadecanoides como reguladores de la defensa de las plantas

    Directory of Open Access Journals (Sweden)

    G. Camarena Gutiérrez

    2002-01-01

    Full Text Available En años recientes muchas moléculas lipoides muy potentes han sido identificadas, comprenden compuestos lipofílicos no derivados de lípidos como los brasinoesteroides triterpenoides, otros que parcialmente son de origen lipídico como los lipo-oligosacáridos, factores de nodulación de especies de Rhizobium que pueden tener parientes endógenos en las plantas, y un tercer grupo, los octadecanoides, cuyas estructuras son derivadas de ácidos grasos vegetales. Las señales mediadas por lípidos son un aspecto importante de la vida de las plantas y un área de investigación en rápido crecimiento.

  5. El derecho como modelo para las ciencias naturales

    Directory of Open Access Journals (Sweden)

    Vittorio Villa

    2005-12-01

    Full Text Available El artículo comienza con una exposición del modo tradicional de entender, durante siglos, la relación entre ciencia jurídica y ciencias naturales. Describe después el cambio radical del contexto epistemológico de fondo que se ha producido en las últimas cuatro décadas. Expone luego cómo, dentro de ese cambio, va apareciendo el derecho como modelo para las ciencias naturales, en fuerza de dos tipos diversos de analogía entre el derecho y esas ciencias. La última parte está dedicada a proponer la concepción del autor sobre las razones de la elección del derecho como modelo

  6. Las directrices del costo como fuentes de ventajas competitivas.

    Directory of Open Access Journals (Sweden)

    José Reinel Bermeo Muñoz

    2005-01-01

    Full Text Available Este trabajo pretende describir con el mayor detalle y actualización posible el comportamiento de los costos dentro de una actividad de valor con base en los diez factores estructurales que influyen en el costo, denominados por Michael E. Porter (1985, como guías o directrices del costo en su libro La Ventaja Competitiva. Estas directrices actúan como fuentes directas para establecer y sostener el posicionamiento estratégico asumido por la empresa, para determinar la posición relativa de costos y para explicar, en gran parte, la generación temporal de valor en las diversas actividades desarrolladas a lo largo de la cadena de valor. Por esto constituyen uno de los fundamentos para explicar las diferencias de resultados entre empresas pertenecientes al mismo sector de actividad económica y fuentes de ventajas competitivas sostenibles.

  7. LA BIOÉTICA COMO QUEHACER FILOSÓFICO

    Science.gov (United States)

    Ferrer, Jorge José

    2009-01-01

    El artículo examina el estatuto epistemológico de la bioética como disciplina académica. El autor sostiene que el estatuto epistemológico de un discurso lo determina la pregunta fundamental que se plantea y la respuesta que se busca, focos integradores del discurso. En el caso de la bioética, la pregunta fundamental es de índole moral. La bioética es pues una disciplina ética que tiene su hogar epistemológico en la filosofía. El autor también defiende el concepto de “éticas aplicadas”. Sugiere finalmente que el método de la bioética, sobre todo la que se hace desde nuestras latitudes, debería adoptar el círculo hermenéutico como metodología para su filosofar. PMID:20463860

  8. La Persona como Eje Fundamental del Paradigma Humanista

    Directory of Open Access Journals (Sweden)

    Monserrat Georgina Aizpuru Cruces

    2012-02-01

    Full Text Available Para el desarrollo de una educación humanista es necesario centrar el paradigma pedagógico en la persona y que ésta sea concebida de una manera integral, como una totalidad. En este paradigma se desenvuelven aprendizajes significativos vivenciales, partiendo de la experiencia misma del educando, utilizando métodos activos de aprendizaje y conceptualizando a la educación como una experiencia creadora. Así mismo, es indispensable que existan programas flexibles, multi y transdisciplinarios. Por otra parte, la autoevaluación es un proceso reflexivo permanente que puede trasladarse a todos los aspectos de su vida y no sólo quedarse en el aula. Por último, los valores más importantes que promueve el modelo son el respeto, la tolerancia, la libertad, todos ellos básicos para la convivencia humana.

  9. O Corpo Queer Como "Imagem-Mentira" na Telenovela Brasileira

    Directory of Open Access Journals (Sweden)

    Juliana Ribeiro Pinto Bravo

    2016-12-01

    Full Text Available Este artigo tem o objetivo de propor a materialidade do corpo queer como um produto estilizado pela telenovela brasileira, justamente, por este corpo pertencer a um processo de montagem que prioriza na imagem a evidência de certa ausência. Dessa forma, a representação do corpo queer é um elemento visual de uma montagem ideológica coerente. Portanto, é preciso analisar as estruturas textuais televisivas, os aportes teóricos queer e as próprias definições de montagem e ausência. A partir do conceito de “Imagem-Mentira” de Didi-Huberman, nomes como John Fiske, John Hartley, Judith Butler, Michel Foucault e Jacques Rancière servirão de base teórica para a discussão.

  10. El icófono musical como portador publicitario

    Directory of Open Access Journals (Sweden)

    Manuel Gértrudix Barrio

    2012-04-01

    Full Text Available A partir del análisis semiótico dela música, entendida esta comosistema semiótico no-lingüísticoque se fundamenta en el ámbitoexpresivo, se justifica un nuevoelemento de significación que,bajo la denominación de Icofonomusical, actúa como un supersignoacústico aislado, capacitado paraactivar en el auditor, como fragmento textual, un área de significación autónoma.Desde la percepción provisoria desu naturaleza, se indaga entresus capacidades y características publicitarias, y se detectauna actualización concreta cuyovalor y funcio-nalidad es extraordinaria en el ámbito publicitarioaudiovisual: el fonotipo se revelacomo un interesante instrumentopara la identificación expresa dela marca y del producto.

  11. Parte de la Naturaleza: sobre el cuerpo como potencia compositiva

    Directory of Open Access Journals (Sweden)

    Juliana Merçon

    2012-11-01

    Full Text Available http://dx.doi.org/10.5007/2175-795X.2012v30n2p473 En medio de la constelación de mitos que han contribuido a la actual crisis socioecológica,se encuentra la creencia de que somos individuos sustanciales, atomizadoso separados del entorno al cual intentamos ‘dominar’. La ignorancia con respecto anuestra interdependencia ontológica está en la base de muchas de nuestras posturas(auto destructivas y ha sido reforzada por diversos sistemas teóricos a lo largo de lahistoria occidental. Al margen de dualismos platónicos, de transcendencias judaicocristianasy del cogito cartesiano, la filosofía de Benedictus de Spinoza (1632-1677nos invita a repensar los fundamentos de la realidad compleja en la cual estamosinmersos. Mi propósito en este artículo es tejer relaciones productivas entre algunasdimensiones de su filosofía, el pensamiento ambiental y la educación. El punto departida será la concepción spinozista de cuerpo. Este será definido como potencia quese expresa a la vez como productividad (fuerza causal y sensibilidad (fuerza receptiva.El carácter esencialmente relacional y afectivo del cuerpo humano nos permitirápensarlo también como potencia compositiva. Desconstruyendo la dicotomíaentre Naturaleza y Cultura, propondré que reflexionemos sobre las composicioneshumano-tecnológicas con respecto a sus efectos sobre nuestra potencia de pensar yactuar. En conclusión, presentaré algunos comentarios sobre el rol de la educacióncomo espacio relacional, en el cual se pueden integrar de forma potenciadora lasdimensiones epistémica, ética, política y ambiental de nuestra existencia como partesinterdependientes de la Naturaleza.

  12. Utilización de pastas como alimentos funcionales

    OpenAIRE

    Martínez, Cristina S.

    2010-01-01

    Objetivo general Evaluar la aptitud de las pastas para actuar como alimentos funcionales, estudiando el efecto del agregado de diferentes ingredientes sobre su calidad tecnológica y nutricional. Objetivos específicos Objetivo I: estudiar los parámetros que definen la calidad de las pastas. Objetivo II: evaluar el efecto del almidón, del gluten y del agua sobre la calidad de las pastas frescas elaboradas con harina de trigo pan. Objetivo III:...

  13. El empowerment como predictor del compromiso organizacional en las Pymes

    OpenAIRE

    Ríos Manriquez Martha; Téllez Ramírez María del Rayo; Ferrer Guerra Julian

    2010-01-01

    La relación entre las variables de empowerment y compromiso organizacional ha sido un campo poco explorado desde la perspectiva organizacional. Esta investigación establece el nivel de influencia del empowerment queexperimentanloscolaboradores con respecto al compromiso hacia la organización para la cual laboran. Se utiliza como referencia un modelo generado con base en la descripción del empowerment en cuatro dimensiones: significado, competencia, autodeterminación e impacto; y del compromis...

  14. La tortilla como identidad culinaria y producto de consumo global

    Directory of Open Access Journals (Sweden)

    Margarita Calleja Pinedo

    2016-01-01

    Full Text Available La tortilla forma parte de la identidad culinaria de los mexicanos que viven en México o en el extranjero; es un componente básico de los antojitos, acompaña a los plati- llos festivos y es un suministro consuetudinario en la co- mida. Desde la época colonial, españoles, indios y mexica- nos produjeron en el norte del país una cultura culinaria, hoy conocida como tex-mex, que ha sido recreada por las olas constantes de migrantes, y aunque en México fue re- chazada, en Estados Unidos y en el imaginario global es reconocida como mexicana, de la que la tortilla de maíz o de trigo es un elemento identificador. A medida que las innovaciones en la comida rápida aumentan, la tortilla se ha convertido en un objeto comestible para el consumo global, desarraigado del patrimonio culinario de origen; como su cede en Shanghai, China, el caso analizado aquí.

  15. La virtualización como necesidad de cambio

    Directory of Open Access Journals (Sweden)

    Eleonora Parra de Párraga

    2002-09-01

    Full Text Available La idea básica en este artículo es efectuar un análisis sobre la realidad que viven muchas empresas, las cuales tienen un enfrentamiento temeroso y cauteloso con los cambios, aún cuando sean vistos como una necesidad de supervivencia en el mercado. La aparición de la figura del teletrabajo, la oficina virtual, el uso de las tecnologías de la información son aspectos a tratarse, además de estudiar brevemente los marcadores de productividad, y la pérdida de control que las empresas virtuales pueden acarrear a futuro. Por ello, la mayoría de estos conglomerados, ha visto como una solución a sus problemas de aceptación y permanencia en el mundo comercial la utilización de esta forma de acercamiento con el público usuario o consumidor de sus servicios o productos. Lo vital, es presentarle otras alternativas, tan atractivas entre ellas como para elegir la más conveniente, según las necesidades del momento, del propio individuo y de su entorno.

  16. El desarrollo de la marcha infantil como proceso de aprendizaje

    Directory of Open Access Journals (Sweden)

    Patricia Martín Casas

    2014-06-01

    Full Text Available El desarrollo de la marcha infantil es un proceso especialmente complejo en que el intervienen factores motores, perceptivos y cognitivos. Desde el nacimiento, el niño integra la información recibida y realiza un progresivo control cortical sobre los patrones neuromotores innatos para desarrollar diferentes formas de locomoción hasta la marcha independiente. Estas ideas no son novedosas pero se están revisando en la actualidad y han motivado numerosos cambios en el estudio del desarrollo infantil. La consideración de la adquisición de la marcha como un aprendizaje en situaciones de constante cambio permite comprender la marcha como acción, cuya realización implica la adquisición de nuevas capacidades de interacción y conocimientos. En este trabajo se exponen los principales conocimientos acerca de este proceso de aprendizaje y se propone destacar las alteraciones de la marcha como indicadores de dificultades en el desarrollo, que requieren una valoración y un abordaje terapéutico interdisciplinares.

  17. AFINAL, COMO SE FORMAM AS ESTRATÉGIAS?

    Directory of Open Access Journals (Sweden)

    Maurício Fernandes Pereira

    2007-12-01

    Full Text Available Tem havido recentemente um grande interesse por parte dos autores em entender como se desenvolve a prática da estratégia organizacional. Partindo desta tendência, o presente trabalho descreve como ocorre o processo de formação estratégica em uma organização pertencente ao terceiro setor – o SESC/SC (Serviço Social do Comércio em Santa Catarina. A criação da estratégia na organização em estudo é analisada tomando-se como base os referenciais propostos por Whittington (2002, analisando duas dimensões principais: os resultados pretendidos com as estratégias e os processos pelos quais ela acontece. Com base nos dados coletados observou-se que, na prática da organização pesquisada, as razões que levam ao estabelecimento da estratégia não estão unicamente voltadas aos aspectos econômicos. Quanto à formação das estratégias, no caso estudado, predominou a formação da estratégia da visão clássica de Whittington (2002, por meio da utilização do planejamento estratégico.

  18. Sistema cenagoso de ayapel como posible sitio Ramsar en Colombia

    Directory of Open Access Journals (Sweden)

    Tatiana Puerta Quintana

    2016-01-01

    Full Text Available Colombia, al ser parte de la Convención internacional de humedales Ramsar, tiene como tarea la gestión de los humedales del país, incluyendo aquellos ecosistemas estratégicos que cumplan con uno o más criterios según los lineamientos dispuestos por la Convención. Este artículo describe el procedimiento a seguir para postular el sistema cenagoso de Ayapel como posible sitio Ramsar en Colombia. Se consolidaron los trabajos de investigación para demostrar que el sistema cenagoso de Ayapel cumple con varios criterios establecidos por la Convención. Como resultado relevante se obtuvo el insumo base para el proceso de postulación en la Convención (Ficha Ramsar. Este es el primer paso de un proyecto marco encaminado a la gestión y conservación de un ecosistema que sufre perturbaciones y transformaciones por actividades antrópicas, del cual depende en gran medida una población humana, de fauna y flora vulnerable, asociada a la dinámica de funcionamiento y servicios ecosistémicos del humedal. Además, se muestra el proceso de socialización de la Ficha Ramsar con la comunidad directamente involucrada, la cual acoge el proyecto de manera positiva.

  19. COMO LLEGA EL MARKETING A LOS EMPRENDEDORES LATINO AMERICANOS

    Directory of Open Access Journals (Sweden)

    Jimmy Federico Telléz Figueroa

    2014-06-01

    Full Text Available Los tiempos de las ciencias puras, al parecer están en una encrucijada muy compleja. Partiendo por lo que en realidad entendemos hoy como ciencia pura. Desde los años cincuenta, cuando el Marketing nace al mundo científico, académico y practico como tal, esta ciencia en particular ha visto en su existencia la forzosa necesidad de transformarse no solo de forma sino de fondo, es decir, cambios en su forma de presentación hasta cambios conceptuales, que ya en los años setenta se tuvieron que redefinir, incluso poniendo en entredicho, si realmente el Marketing era una ciencia, o finalmente un arte, con sus planteamientos expuestos en una inevitable lectura de su zaga de Marketing Practico y Aplicado, que como todos sabemos se inicio en 1972 con la obra “El Posicionamiento” y que un par de años después revolucionaria la teoría científica de esta entre comillas ciencia, cuando aparece su postulado practico y aplicado con la obra “La Guerra de la Mercadotecnia”, perpetuando en los lectores de la época, la portada de su libro, con la imagen del tanque saliendo del maletín ejecutivo, sobre una mesa de reuniones.

  20. A estética como factor promotor da aprendizagem

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    Fátima Maria BEZERRA BARBOSA

    2012-02-01

    Full Text Available La reflexión filosófica sobre el arte, lo hermoso, lo bueno, lo verdadero y su capacidad de promover el desarrollo humano es un tema que remonta a Platón en la cultura occidental. Considerando que la educación debe ser entendida como un fenómeno integral, que abarca no sólo las dimensiones intelectuales sino también las dimensiones sensibles, la intuición y el raciocinio, las capacidades imaginativas y creativas, el «saber ser» y el «saber estar» parejas del «conocer» y del «saber hacer», pensamos que es incuestionable la importancia de la estética en el fenómeno educativo. El objetivo de este trabajo es demostrar la importancia de la educación estética como motor fundamental de desarrollo humano y, en este sentido, como catalizador de la motivación y del aprendizaje, para que, a través de la imaginación y de la creatividad, sea posible la innovación en la construcción de vías alternativas para un mundo más humano y placentero.

  1. Diplopia como primeiro sintoma de esclerose múltipla

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    Maria Auxiliadora Monteiro Frazão

    2015-04-01

    Full Text Available Objetivo: Determinar a frequência e as características clínicas das alterações da motilidade ocular extrínseca em indivíduos portadores de esclerose múltipla, residentes no estado de São Paulo, em série de casos consecutivos de 1996 a 2011. Métodos: Foram selecionados oitenta e três indivíduos com esclerose múltipla, com idade entre 17 e 59 anos. Todos foram submetidos à anamnese e exame ocular completo. Resultados: Alterações da motilidade ocular extrínseca foram encontradas em 17 ( 20,48% dos 83 indivíduos. A diplopia ocorreu como primeiro sintoma da doença em 11 (13,25% indivíduos. Conclusão: A frequência de diplopia como primeiro sintoma de esclerose múltipla é relevante. Por esse fato, é fundamental ressaltar a importância da difusão do conhecimento desse achado para a realização de diagnóstico precoce de esclerose múltipla, tanto para o oftalmologista geral, como para o médico generalista, melhorando assim o prognóstico dos pacientes que dela padecem.

  2. HABILIDADES E ATRIBUTOS DO ENFERMEIRO COMO COORDENADOR DE GRUPOS

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    CARLA NATALINA DA SILVA FERNANDES

    2008-01-01

    Full Text Available Coordinar grupos es una actividad cada vez más frecuente para los enfermeros, que deben tener conocimiento especí- fico para alcanzar los objetivos propuestos y para aprovechar el potencial de las personas implicadas. Se trata de una investigación teórica que tiene como objetivo discutir y reflexionar sobre algunos atributos deseables en los enfermeros como coordinadores de grupos, basado en el estudio de Godoy, literatura clásica de la Dinámica de Grupo y estudios contemporáneos publicados en periódicos especializados nacionales e internacionales. El artículo está organizado en dos momentos; en el primero se presentan algunas bases teóricas de la coordinación de grupos y, en el segundo, las cualidades deseadas en un coordinador. Estos elementos son discutidos como herramientas aprovechadas por los enfermeros en la conducción de los grupos con el propósito de realizar actividades de asistencia, formación de recursos humanos o para el desarrollo de investigaciones. La praxis de la coordinación implica un sistema de capacidades técnicas y científicas; amplio conocimiento de las relaciones interpersonales, auto conocimiento, sensibilidad y creatividad para que, en efecto, el desempeño del enfermero promueva una mayor atención de las demandas en el área de la salud.

  3. La comunicación corno quehacer y como problema

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    Javier Luis Mier

    2015-01-01

    Full Text Available Este número aborda la comunicación desde las tres interpretaciones más importantes: la tradicionalista, la militar y mercantilista y el arte popular tan inestable, cuestionado y cambiante. Canclini cuestiona la compartamentalización de cultura: popular y de medios y esboza los problemas que plantea la tradicional miopía de no reconocer la universalización y ubicuidad de la cultura de masas. Se agregan otros temas como: ¿Re-intelección de los medios? apuntes sobre un libro de los Mattelart, ¿"Ética" o "Deontología"?, El lenguaje del vestido y de la fiesta,Talleres de cultura Popular en Santiago de Chile, El dilema del arte popular en Bolivia,¿Sobrevivirán las artesanías aborígenes argentinas?, Los tejedores de El Tintorero, Tecnologías de computación y Tercer Mundo, La cobertura del terremoto en México, La comunicación como quehacer y como problema, la comunicación planificada sirve al desarrollo

  4. Supplement to the paper 'Quadratic Sagnac effect — the influence of the gravitational potential of the Coriolis force on the phase difference between the arms of a rotating Michelson interferometer (an explanation of D C Miller's experimental results, 1921 – 1926)' (Usp. Fiz. Nauk185 431 (2015) [Phys. Usp.58 398 (2015)])

    International Nuclear Information System (INIS)

    Malykin, G B; Pozdnyakova, V I

    2015-01-01

    The paper 'Quadratic Sagnac effect — the influence of the gravitational potential of the Coriolis force on the phase difference between the arms of a rotating Michelson interferometer (an explanation of D C Miller's experimental results, 1921 – 1926)' (Usp. Fiz. Nauk 185 431 (2015) [Phys. Usp. 58 398 (2015)]) is amended and supplemented with information concerning earlier work on the influence of rotation on Michelson – Morley's nonzero results. (letters to the editors)

  5. Tragédias nas escolas americanas: como entendê-las? Como impedir que voltem a acontecer?

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    Eva Paulino Bueno

    2011-05-01

    Full Text Available

    Este artigo dá uma visão histórica do direito de portar armas nos Estados Unidos, e como a existência e facilidade de obtenção de armas têm causado inúmeras tragédias em escolas. Fala também das diferentes maneiras que as pessoas reagem às tragédias e como impedir que ocorram.

  6. Robots como ferramenta pedagógica nos primeiros anos a aprendizagem como participação

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    SÓNIA MATILDE PINTO CORREIA MARTINS

    2015-01-01

    Full Text Available El presente artículo describe y analiza un proyecto realizado con dos grados del 1er ciclo de enseñanza básica en Portugal (2doy 3er grado que trabajaron en conjunto con robots, tomando el aprendizaje como un fenómeno intrín-secamente relacionado a la participación en comunidades de práctica (Lave, 1996; Lave; Wenger, 1991. Se pretende caracterizar a los participantes, a la metodología de trabajo implementada, describirlos artefactos utilizados (robots y escritura de una historia y analizar la relación de los participantes con los robots, así como los patrones de participación que se relevaron con este tipo de trabajo. Se busca enfatizar e las contribuciones derivadas de la participación en ambientes sociales digitales para el aprendizaje de los alumnos, como la participación y la negociación conjunta de significados, la importancia de que los robots y la historia hayan sido “construidos” por los alumnos y la existencia de un repertorio compartido y un emprendi-miento conjunto.

  7. El anisakis y sus enfermedades como enfermedad profesional

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    José Manuel Vicente Pardo

    Full Text Available El anisakis es un parásito complejo de los animales marinos. El hombre no es el hospedador adecuado, ya que en él la larva L3 no puede completar su ciclo vital, siendo por tanto un hospedador accidental u ocasional, que se interpone en el ciclo vital del nemátodo, y al que el anisakis le puede causar tanto la parasitación como la alergia, cuando ingiere pescado o cefalópodos crudos o poco cocinados: tales como sushi, sashimi, ceviche gravlax noruego, lomi-lomi hawaiano, así como pescados en escabeche, vinagre, desecado, ahumados, semiconservas, o en salazón que contengan este parásito en su forma de larva en estadio tres L3. Las enfermedades por anisakis constituyen un problema de salud pública, generalizado y que ha aumentado su incidencia en los últimos años. En 2012, se notificaron 20.000 casos de anisakiasis en todo el mundo. España es el segundo país con mayor número de intoxicaciones por Anisakis después de Japón. Diversos estudios en España sobre la prevalencia de la sensibilización reflejan una elevada prevalencia entre pacientes que han sufrido episodios de reacciones alérgicas. El 50 por ciento de quienes manipulan directamente el pescado presentan sensibilidad a anisakis. Siendo por tanto cada vez más común la afectación por y en el desarrollo del trabajo, constituyendo entonces procesos considerados como enfermedad profesional cuando se dan las circunstancias determinantes causales de trabajo, riesgo y exposición que para ello deben concurrir. La afección puede presentarse tanto por contacto laboral como por contacto en el consumo ordinario de pescado infestado, lo que hará difícil el estimar como causa exclusiva o consecuente la aparición de la enfermedad a consecuencia del desempeño del trabajo. Los sectores laborales de riesgo por enfermedades por anisakis, son los pescadores, pescaderos ("pescateros" y cocineros. En general todos aquellos que trabajan tanto en la captura, limpieza, manipulación, venta

  8. O planejamento como prática do poder

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    Lucas Maia dos Santos

    2009-12-01

    Full Text Available

    Este texto visa apresentar uma leitura crítica acerca da prática de planejamento. Não é um esboço histórico, mas tão-somente uma interpretação do planejamento e como este está inserido na lógica de reprodução da sociedade capitalista. Argumenta para tanto que a prática de planejamento é realizada pela instituição estatal. Esta é um produto genuíno das sociedades de classes. O próprio estado tem como base social uma classe específica: a burocracia. Esta defende, dentro dos quadros da sociedade capitalista, os interesses gerais da burguesia, por mais que possa dentro de dadas circunstâncias sociais específicas opor-se a frações da burguesia, mas nunca aos interesses gerais de classe da burguesia. Defendemos que o poder é uma relação de dominação. Como tal, o planejamento é desta maneira uma manifestação da dominação de classe através da regulação do estado. A instituição estatal é desta forma responsável tanto por regularizar a prática do planejamento, quanto em muitos casos executar os planos ela própria. Assim, defende-se neste texto a necessidade de se superar as relações sociais que engendram o planejamento viabilizado pelo estado. Suprime-se assim o próprio planejamento.

  9. Etnografia como prática e experiência

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    José Guilherme Cantor Magnani

    2009-12-01

    Full Text Available Este artigo, a partir de alguns usos pouco ortodoxos da etnografia, fora do campo da antropologia, propõe uma discussão sobre a especificidade desse método de pesquisa, com base em pesquisas e reflexões realizadas sobre o tema no Núcleo de Antropologia Urbana da USP (NAU. Tomando como ponto de partida uma citação de Lévi-Strauss, repassa alguns autores - Goldman, Peirano, DaMatta, Favret-Saada, entre outros - para estabelecer parâmetros na busca de traços que considera específicos do fazer etnográfico e assim chega a três considerações principais: etnografia como experiência, como prática e com base numa certa noção de totalidade. O relato de uma etnografia sobre jovens surdos é apresentado para oferecer um suporte empírico àquelas conclusões.Considering some less orthodox uses of ethnography, not belonging to the anthropological field, this article proposes a discussion on the specificities of the ethnographical research method, based on reflections and researches undertaken at the Urban Anthropology Nucleus (NAU. Taking a Lévi-Strauss's quotation as its starting point, it examines the ideas of authors like Goldman, Peirano, Da Matta, Favret-Saada, among others, in order to establish parameters to guide the search for specific features in the ethnographic métier. Such a discussion leads to three considerations: ethnography as experience, as practice, and as based on a certain concept of "totality". The report of an ethnography on deaf young people is included in the article as empirical support to the conclusions.

  10. Cine interactivo como estrategia de intervención grupal

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    Paola Lauretti

    2009-05-01

    Full Text Available Utilizando el concepto de cine interactivo como agente motor de la relación inter e intra personal, presentamosuna experiencia con un grupo de adultos, con la finalidad de establecer el valor del cine como un recurso útil para laintervención grupal. El método de trabajo descriptivo se desarrolló en varias etapas: 1 aplicación del CuestionarioExploración de Necesidades (CEN del cual se extrajeron los principales temas a tratar; 2 selección, por parte delequipo de investigación, de aquellas películas que mejor se adaptaban a las necesidades detectadas; 3 aplicación delCuestionario Actitud frente al Cine (CAC para sus analizar su actitud antes de iniciar la experiencia; 4 proyecciónde las películas seleccionadas; 5 re aplicación del CAC dos meses después de culminado el proceso, para analizar loscambios operados con relación al cine. Los temas trabajados fueron relación de pareja y relaciones padres-hijos bajola utilización del modelo CAPAS el cual promueve el análisis de las situaciones planteadas en los siguientes pasos: C:comentario general del contenido; A: análisis del problema central; P: proceso de internalización; A: auto reflexión y S:Solución del conflicto. Los resultados apuntan hacia la importancia de considerar el cine como una estrategia valiosaen la intervención en grupos.

  11. AFINAL, COMO SE FORMAM AS ESTRATÃGIAS?

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    Maurício Fernandes Pereira

    2007-12-01

    Full Text Available Tem havido recentemente um grande interesse por parte dos autores em entender como se desenvolve a prática da estratégia organizacional. Partindo desta tendência, o presente trabalho descreve como ocorre o processo de formação estratégica em uma organização pertencente ao terceiro setor â o SESC/SC (Serviço Social do Comércio em Santa Catarina. A criação da estratégia na organização em estudo é analisada tomando-se como base os referenciais propostos por Whittington (2002, analisando duas dimensões principais: os resultados pretendidos com as estratégias e os processos pelos quais ela acontece. Com base nos dados coletados observou-se que, na prática da organização pesquisada, as razões que levam ao estabelecimento da estratégia não estão unicamente voltadas aos aspectos econômicos. Quanto à formação das estratégias, no caso estudado, predominou a formação da estratégia da visão clássica de Whittington (2002, por meio da utilização do planejamento estratégico.

  12. INTERPRETACIÓN CONSTITUCIONAL Y JUDICIAL. COMO LEER SENTENCIAS JUDICIALES

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    Sergio Rodríguez Alzate

    2010-01-01

    Full Text Available El Estado colombiano es un Estado social de derecho (así lo define el Artículo 1º de nuestra Carta Política, con el cual se busca la realización de la justicia social y la dignidad humana mediante la sujeción de las autoridades públicas a los principios, derechos y deberes sociales de orden constitucional. De allí, se desprende que sea tan importante el Derecho Constitucional, ya que es la principal rama del derecho público por cuanto participa en todos los estamentos propios de lo jurídico y especialmente de la estructura del Estado como base de todo ordenamiento institucional político, razón por la cual al entenderse como la disciplina del derecho encargada de los estudios conceptuales de los estados sociales de derecho, es vital tanto el surgimiento de la Constitución Política como de su interpretación, desde el estudio de sus fundamentos hasta la asimilación de una hermenéutica jurídica que encamine a todos los gobernados por la norma de normas. De acuerdo al concepto anteriormente señalado, se hace necesario valorar el alcance de la Interpretación Constitucional en el contexto general de la Carta Magna facilitando la exégesis judicial y su contenido crítico, llegando a una conexión explicativa de cualquier problema jurídico y extrajurídico.

  13. Gamificación como estrategia de marketing interno

    OpenAIRE

    Ruizalba Robledo, José Luis; Navarro Lucena, Fernando; Jiménez Arenas, Sergio

    2013-01-01

    Objeto: Este estudio tiene como objetivos de una parte ofrecer elementos para crear un marco de referencia que permita la integración de la gamificación en las políticas de marketing interno y de otra analizar de manera descriptiva varios casos prácticos de empresa en los que se muestra el papel que la gamificación juega al implicar clientes y empleados con estrategias de engagement que influyan en sus comportamientos. Diseño/metodología/enfoque: Partiendo de la orientación al marketing i...

  14. El parentesco como sistema en la interfaz bio-cultural

    OpenAIRE

    G??mez Garc??a, Pedro

    2011-01-01

    Aqu??, he centrado mi investigaci??n en la descripci??n del sistema de parentesco humano como constituido por una organizaci??n espec??fica, en la que se opera una articulaci??n bio-cultural. El parentesco no consiste solo en elementos biol??gicos, o m??s exactamente gen??ticos, ni tampoco ??nicamente en los determinantes sociales o culturales. Las relaciones familiares se constituyen y desarrollan en la interfaz entre el plano biogen??tico y el sociocultural, dando lugar a la formaci??n del ...

  15. La tortilla como identidad culinaria y producto de consumo global

    OpenAIRE

    Margarita Calleja Pinedo; María Basilia Valenzuela

    2016-01-01

    Resumen: La tortilla forma parte de la identidad culinaria de los mexicanos que viven en México o en el extranjero; es un componente básico de los antojitos, acompaña a los platillos festivos y es un suministro consuetudinario en la comida. Desde la época colonial, españoles, indios y mexicanos produjeron en el norte del país una cultura culinaria, hoy conocida como tex-mex, que ha sido recreada por las olas constantes de migrantes, y aunque en México fue rechazada, en Estados Unidos y en el ...

  16. Purpura, verde, azul...la calidad como un color

    OpenAIRE

    Lorenzo Ramírez, Nuria

    2009-01-01

    El objetivo de este artículo es explicar, compartir y hacer públicos algunos pensamientos e ideas sobre la Universidad y la cultura del profesorado universitario. Se parte de la idea de que no existe armonía entre la gestión, la técnica y la cultura universitaria. Si como docentes aprendemos de la experiencia y del ambiente de trabajo, entonces cabe preguntarse por nuestras experiencias y por los conocimientos que a travcs de ellas hemos generado, para mantenerlos o rechazar...

  17. Los Balnearios como Centros de Salud Spas as health center

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    Manuel López Morales

    2004-03-01

    Full Text Available Los balnearios están siendo reconsiderados. Frente a estilos de vida lesivos para nuestra salud, y terapéuticas agresivas, se posicionan sólidamente las terapias naturales, como la crenoterapia. A ello contribuyen la emergencia de nuevos valores sociales relacionados con la salud. Se ofrece información técnica sobre las indicaciones y modalidades balneoterápicas.Spas are being reconsidered. Instead of unhealthy way of life and aggressive therapies, crenotherapy take sure place. The new demand for spas is a response to new values. We offer thecnics information above suitable indications and balneotherapy kinds.

  18. EL CUERPO COMO PARADIGMA TEÓRICO EN LITERATURA

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    Cándida Elizabeth Vivero Marín

    2008-01-01

    Full Text Available La teoría y la crítica literarias feministas toman como uno de sus ejes conceptuales al cuerpo, a fin de explicar el texto literario escrito principalmente por mujeres. Sin embargo, han dejado de lado un punto igualmente central: la función poética. Este artículo trata de traer de nueva cuenta, a la mesa de la discusión teórica, la necesidad de llegar a un equilibrio entre la función comunicativa y la función poética inherentes al texto literario.

  19. La responsabilidad social corporativa como eje de desarrollo sostenible

    OpenAIRE

    Bravo, Gissela; Plaza, Nila

    2013-01-01

    La responsabilidad social corporativa (RSC), también denominada por algunos autores como Responsabilidad Social Empresarial (RSE), es voluntaria y se sustenta en la ética. Considerar que debe ser así, para que las empresas realicen actividades limpias sin necesidad de implementar medidas desde la normativa legal. Las empresas tienen obligaciones morales con sus clientes internos, externos y la comunidad a la que se debe. Todos los propósitos de la empresa son logrados por estos grupos de inte...

  20. El conflicto familiar como fuente embrionaria de violencia social

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    Juan Carlos Santa Cruz

    1999-02-01

    Full Text Available Este artículo es el resultado de un estudio realizado entre 120 familias de la ciudad de Managua. La investigación revela que el ejercicio del poder en la vida familiar tiene un evidente sesgo vertical que apunta hacia el autoritarismo. En gran parte de los testimonios, se reconoce que predomina o han predominado formas violentas en la resolución de conflictos, particularmente entre padres e hijos. El conflicto, como tal, no se resuelve en el corto plazo, sino que se posterga. Mientras en el mediano plazo, favorece ciertas incertidumbres que alimentan una fuente embrionaria de violencia social.

  1. La equidad como propósito del desarrollo

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    Corredor Consuelo

    1995-06-01

    Full Text Available Los nocivos efectos sociales de la política seguida en el cuatrenio anterior, la persistencia de diferentes formas de violencia y el potencial democrático de la Constitución Política, que otorga un lugar central a lo social, son factores objetivos que explican la propuesta formulada en el plan de desarrollo El Salto Social, así como las expectativas y el respaldo de la opinión pública a algunas de sus iniciativas.

  2. La cultura de masas como el nuevo opio del pueblo

    OpenAIRE

    Correa García, Ramón Ignacio; Martínez Mojarro, Mª Eugenia; Martínez Mojarro, Natalia

    2001-01-01

    La cultura de masas, así como otros sistemas doctrinarios que forman parte de la vida de los ciudadanos de la sociedad actual conforman reglas de pensamiento y estilos de vida. Los autores plantean una reflexión sobre la hegemonía incontestable de los Estados Unidos y llega a la conclusión de que una realidad impuesta sutilmente consigue anestesiar la conciencia crítica de las personas a la vez que impide ver otras realidades. La cuestión final a la que se abre esta colaboración es la que se ...

  3. El duelo anticipatorio del anciano como paciente terminal

    OpenAIRE

    Ospina Velasco, Ana María

    2012-01-01

    El presente artículo tiene como objetivo ilustrar, a partir de un caso observado, algunos elementos teóricos de la literatura tanatológica , sobre el proceso de duelo del anciano enfermo, frente a la inminencia de su muerte. La clínica relacionada con aspectos del proceso de muerte, ha permitido identificar elementos o variables comunes, inherentes a dicho proceso, que son vivenciados en forma específica por los individuos, de acuerdo precisamente con sus características particul...

  4. A violência escolar como regime de visibilidade

    OpenAIRE

    Forero Londoño, Oscar Fernando; Universidad Distrital Francisco José de Caldas

    2012-01-01

    Resumen Este escrito aborda los discursos sobre la violencia escolar y los asume como regímenes de visibilidad que se construyen históricamente. Además, expone de manera esquemática cómo son asumidas las nociones de ju- ventud, cultura escolar y cultura juvenil en los estudios sobre la violencia escolar.Reflexionar sociológicamente sobre las diversas formas de definir la vio- lencia escolar y su relación con las poblaciones en condición juvenil implica asumir que las determinaciones analítica...

  5. EL PROFESOR COMO GESTOR DEL PROCESO ACADÉMICO

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    María Morella Colls Carrillo

    2013-03-01

    Full Text Available El presente estudio tiene como objetivo abordar los procesos de cambio que están ocurriendo en la educación superior, y el papel del profesor universitario como gestor del conocimiento en entorno del aprendizaje. En tal sentido, se analizan y discuten las percepciones de un grupo de profesores de la Universidad Nacional Experimental Simón Rodríguez en torno de las tecnologías de la información y de la comunicación (TICs y los cambios que genera su implementación en los procesos de enseñanza y del aprendizaje. El escenario es los cambios que se generan con la implementación de las tecnologías de la información y de la comunicación en los procesos de enseñanza aprendizaje. El resultado de esta investigación se traducirá en las interpretaciones conceptuales y teóricas que darán soporte a la conceptualización conforme a la nueva visión expresada en el marco legal que la fundamenta y en su pertinencia social. Como aporte se espera generar constructos teóricos sobre la actuación del profesor como gestor universitario.PALABRAS CLAVE: conocimiento; educación; comunicación; TICsTHE TEACHER AS AGENT OF THE ACADEMIC PROCESS  ABSTRACTThe present study has as objective to approach the processes of change that are happening in the superior education, and the university professor's paper as agent of the knowledge in environment of the learning. In such a sense, they are analyzed and the perceptions of a group of professors of the National Experimental University name after Simón Rodríguez in lathe of the information and of the communication technologies (ICT and the changes that generates their implementation in the teaching and learning processes. The scenario is the changes that are generated with the implementation of the technologies of the information and of the communication in the processes of teaching learning. The result of this investigation will be translated in the conceptual and theoretical interpretations that will give

  6. La violencia como estrategia, para formar liderazgo estudiantil

    OpenAIRE

    Hurtado, Eladia

    2012-01-01

    La violencia se ha trasformado en un problema de salud pública, según la asamblea Mundial de la Salud, (AMS) en el año (1996), acrecentándose en Venezuela la violencia estudiantil. La cual se ha convertido en tema de interés en los últimos años, el índice de mismo, pareciera propagarse cada día. Motivo por el cual se presenta la siguiente investigación de tipo fenomenológica de campo descriptiva, con variable como: Estrato social, consumo de alcohol o droga, consumo de cigarrillo, comunicació...

  7. Reflexos de sangue: Dracula como espelho da era vitoriana tardia

    OpenAIRE

    Marques, Cátia Sofia Guedes

    2010-01-01

    Tese de mestrado, Ciências da Cultura, Universidade de Lisboa, Faculdade de Letras, 2011 Partindo dos conhecimentos adquiridos no curso de Ciências da Cultura, esta dissertação é produto da articulação entre um documento cultural importante, como um grande clássico da literatura inglesa, Dracula, e o respectivo estudo segundo a perspectiva sociológica das Ciências Sociais. Utilizando os conceitos de género, status, classe social e representação, é possível analisar se as quatro personag...

  8. La acedia como forma de malestar en la sociedad actual

    Directory of Open Access Journals (Sweden)

    María Lucrecia Rovaletti

    2014-03-01

    Full Text Available Partiendo de la propuesta de Theunissen, se busca realizar un regreso arqueológico respecto al concepto de melancolía en la antigüedad y de acedia medieval. Con ello, se intenta reflexionar esa trama de fatiga, aburrimiento, tedio, tristeza que se entreteje en la cultura actual. Charbonneau y Legrand (2003 designan como paradepresiones a este conjunto de problemas a menudo infrasintomáticos, demasiado lábiles y poco significativos para ser denominados síntomas.

  9. “Casa Elina”: el encuentro como oportunidad

    OpenAIRE

    Saavedra, Caudia; Martinez Goya, Milagros

    2017-01-01

    El dispositivo “Casa Elina” nace en abril del año 2014, como un servicio integrado entre el Hospital Subzonal Especializado “Elina de la Serna de Montes de Oca” y la Subsecretaría de Salud Mental y Adicciones, ahora Subsecretaría de Determinantes Sociales de la Salud y la Enfermedad Física, Mental y de las Adicciones del Ministerio de Salud de la provincia de Buenos Aires. Surge con la impronta de ser un dispositivo innovador en relación al formato tradicional hospitalario, a la vez de encuad...

  10. O ENSINO DA FILOSOFIA COMO UMA TECNOLOGIA DE GOVERNAMENTALIDADE

    OpenAIRE

    Oliveira, Liliana Souza de

    2016-01-01

    * Doutora em Educação pela Universidade Federal de Santa Maria (UFSM). Professora de Filosofia no Instituto Federal Farroupilha-Campus São Vicente do Sul/RS.O ensino da filosofia como uma tecnologia de governamentalidadeResumo: O presente trabalho insere-se nas discussões sobre o ensino da Filosofia. Pretendo a partir de uma inspiração foucaultiana analisar as condições de emergência do discurso sobre a importância da Filosofia no vestibular da Universidade Federal de Santa Maria (UFSM) e as ...

  11. Las modificaciones estructurales como parte del proceso concursal

    OpenAIRE

    Giron Beckles, Jessica

    2013-01-01

    La investigación propuesta se centra en el estudio de las modificaciones estructurales de sociedades, reguladas por la Ley 3/2009 de 3 de abril, dentro del proceso concursal y tiene como propósito el realizar una labor de hermenéutica jurídica con el fin de sentar las bases para la armonización del Derecho de Sociedades y el Derecho concursal en torno al problema planteado. Busca sistematizar y dar solución a las preguntas que surgen cuando confluyen estas dos regulaciones, mediante el anális...

  12. La convergencia como oportunidad para mejorar la docencia universitaria

    Directory of Open Access Journals (Sweden)

    Miguel Angel ZABALZA BERAZA

    2006-01-01

    Full Text Available El proceso de convergencia hacia el EEES ha supuesto la incorporación de nuevos referentes académicos y culturales en nuestras universidades. Este artículo trata de centrarse en el análisis de aquellos que tienen que ver con la docencia y tienen como objetivo su mejora. Se analizan especialmente cinco de ellos: el aprendizaje autónomo; el modelo de formación basado en competencias; la consideración del tiempo y la carga de trabajo en los ECTS; el enfoque curricular de las enseñanzas y, finalmente, el lifelong learning.

  13. Fitoterapia como coadyuvante en el tratamiento de la obesidad

    OpenAIRE

    López-Regueiro, Sofía; Ramos Sáiz, Eva María; López-Picado, Amanda; Burgos-Alonso, Natalia; Arana-Salaberría, Ainara

    2012-01-01

    La obesidad es uno de los problemas de salud más importantes a nivel mundial debido a su relación con numerosas patologías como la diabetes mellitus tipo 2, la hipertensión y el aumento importante en el riesgo cardiovascular. La base del tratamiento es la dieta y el ejercicio físico, pero en muchos casos no es sufi ciente y es necesario combinarlo con tratamiento farmacológico. Recientemente se ha retirado sibutramina del mercado por lo que sólo se dispone de orlistat, que no está exento de c...

  14. Falares: a oralidade como elemento construtor da grande-reportagem

    OpenAIRE

    Alex Criado

    2006-01-01

    Esta tese discute a incorporação da oralidade de falantes excluídos social e culturalmente na grande-reportagem. O foco desta pesquisa é refletir como a grande-reportagem no Brasil, em sua missão de desvendamento do real, tem lidado com a questão da oralidade. Discute os desafios para a incorporação dos registros orais de pessoas com baixa escolaridade, tendo em vista o preconceito que existe na sociedade em relação aos falantes que se utilizam de modalidades diferentes da língua padrão. Prop...

  15. La ciudad como proceso de comunicación

    Directory of Open Access Journals (Sweden)

    Javier Esteinou Madrid

    2015-01-01

    Full Text Available El autor presenta algunos elementos que ayudarán a la comprensión del fenómeno comunicación-ciudad en los tiempos de la modernidad latinoamericana. Al final del siglo XX, el principal espacio donde se concentra la población de América Latina y del resto del planeta es en las ciudades, por lo que se debe estar obligado a retomar la realidad comunicación-ciudad como una prioridad para analizar y transformar dentro del ámbito de las políticas nacionales de comunicación.

  16. Revisión entre pares como instrumento de aprendizaje

    OpenAIRE

    Crespo García, Raquel; Villena Román, Julio

    2005-01-01

    Proyecto de Innovación Docente en las asignaturas de Organización de Contenidos Audiovisuales y e Inteligencia en Redes de Comunicaciones Este artículo describe la experiencia de innovación docente llevada a cabo este último curso basada en la aplicación de la metodología de revisión entre iguales como instrumento para el aprendizaje, desarrollada en las asignaturas Organización de Contenidos Audiovisuales (Ingeniería Técnica de Telecomunicación, especialidad Sonido e Imagen) durante el cu...

  17. El rol del profesional de la salud como docente universitario

    OpenAIRE

    Ángela María Henao-Castaño; Martha Lucía Núñez-Rodríguez; José Humberto Quimbayo-Díaz

    2010-01-01

    Este artículo hace un análisis del "ser" profesor universitario en los programas del área de la salud. Se incluyen tópicos relacionados con el ejercicio de la profesión docente como un arte en el que se comparten aspectos relacionados con el ejercicio de las disciplinas. A partir de estos enunciados se da una mirada relacionando el ejercicio docente y los sentimientos de amor y amistad involucrados en esta actividad, destacando que de ninguna manera se constituyen en un irrespeto por la inves...

  18. Pensando o franchising como alternativa organizacional no contexto globalizado

    Directory of Open Access Journals (Sweden)

    Alfredo Dib Nour Abdul

    2012-11-01

    Full Text Available O estudo analisa o sistema de franchising como uma alternativa de relação econômica e social que envolve os parceiros - franqueador e franqueado. O objetivo é analisar as características, a natureza, os pressupostos, a lógica e a forma gerencial dessa parceria. O franchising é inserido num mundo globalizado, sendo investigada a sua identificação com a modernização reflexiva e/ou com a modernização ortodoxa.

  19. O mercado interno como patrimônio nacional

    OpenAIRE

    Nascimento, Cecilia Franco Sisternas Fiorenzo do

    2007-01-01

    Resultado do especial interesse por Direito Constitucional e da curiosidade pela profunda relação existente entre Direito, Economia e Sociedade, o trabalho foi idealizado e desenvolvido como instrumento de reflexão sobre o mercado interno, uma instituição que guarda elementos das três áreas e possibilita a convivência harmônica entre as regras e os interesses de todas elas, capaz de realizar em seu bojo os objetivos comuns e os específicos de cada uma. O objetivo da pesquisa foi, a partir ...

  20. Pedagogia como Gesto Poético de Linguagem

    OpenAIRE

    Richter,Sandra Regina Simonis; Berle,Simone

    2015-01-01

    Resumo:O ensaio aborda a relação entre experiência de linguagem e imaginação poética a partir das reflexões de Agamben, Merleau-Ponty e Bachelard como estratégia para tensionar o problema da descontinuidade temporal que tece a alteridade linguageira dos encontros entre crianças pequenas e adultos. Reivindica a compreensão pedagógica de que é interagindo poeticamente com o mundo, desencadeando tempos de presença e assumindo tentativas de plasmar sentidos singulares no coletivo, e não dele dist...

  1. Competitividad de Cartagena como destino del turismo de congresos

    OpenAIRE

    Pérez Merlos, Laura

    2011-01-01

    Este trabajo lleva a cabo un análisis de la posición competitiva de la ciudad de Cartagena como destino del turismo de reuniones y congresos. Para ello se estudian la situación y principales tendencias seguidas por el turismo de reuniones y congresos en la actualidad y qué factores son los determinantes básicos de la competitividad de un destino en este contexto. Finalmente se formulan recomendaciones orientadas a facilitar un mejor posicionamiento de Cartagena en este segmento de...

  2. La música como ambiente de aprendizaje

    OpenAIRE

    Heredero Sanz, Sara

    2017-01-01

    En el presente trabajo de Fin de Grado de Educación Infantil, tiene la intencionalidad de argumentar y verificar la importancia de la música en el contexto educativo de dicha etapa. Con el fin de demostrar los beneficios que la música aporta no sólo al desarrollo de un lenguaje más, sino a aspectos emocionales y personales en el desarrollo temprano del niño. Como introducción, podemos observar los objetivos y argumentación que nos hemos planteado para llevar a cabo este proyecto. A cont...

  3. La reputación como ventaja competitiva sostenible

    OpenAIRE

    González, Susana G

    2013-01-01

    En los actuales contextos globalizados, las empresas se encuentran en una búsqueda incesante por diferenciarse. La oferta de bienes y servicios en general ha crecido, tanto en cantidad como en calidad. A tal grado se produce este fenómeno que, si la empresa no encuentra una buena razón (y la comunica correctamente) para ser elegida por los consumidores, se condena a perder mercado y/o rentabilidad. Las tradicionales fuentes de ventaja competitiva se encuentran sobreexplotadas. Además de prese...

  4. Software como serviço : impacto nas empresas portuguesas

    OpenAIRE

    Araújo, Virgínia Maria da Silva

    2015-01-01

    Durante los años 90, se ha producido un cambio en la opinión sobre Internet se considera demasiado técnica y académica, emergiendo un creciente interés público en el tema que se vuelve popular a escala global. Las tecnologías están disponibles, pero nadie sabe realmente cómo tomar ventaja de ellas. Se trata de aprovechar el potencial de la red global, surge una profusión de ideas que hace algunos negocios exitosos emergen como es el caso de las empresas Yahoo y Google. Empresas e institucione...

  5. O consumo da magreza : a publicidade como ideal de felicidade

    OpenAIRE

    Silveira, Beatriz de Oliveira

    2013-01-01

    A temática da felicidade tornou-se objeto de estudo de muitos pesquisadores, devido à preocupação acerca das atitudes que estamos tomando na busca por experimentá-la. Devido ao uso recorrente da imagem de homens sarados e mulheres gostosas por meio da publicidade, a magreza tornou-se não apenas uma obsessão na contemporaneidade, mas também vem sendo apontada como requisito para que se possa ser feliz. Não é comum observar atrizes ...

  6. ANÁLISE DA CIDADE BAIXA COMO POLO CRIATIVO POTENCIAL

    Directory of Open Access Journals (Sweden)

    Lisiane Quadrado Closs

    Full Text Available RESUMO A Economia Criativa vem recebendo atenção crescente, podendo contribuir para um desenvolvimento centrado nas pessoas e como insumo para a criação de empregos e inovação, favorecendo a inclusão social, a diversidade cultural e a sustentabilidade. Para ampliar sua discussão no Brasil, este trabalho tem por objetivo analisar as potencialidades e os limites para um território localizado no bairro Cidade Baixa, em Porto Alegre, constituir-se como polo criativo. Entre os aspectos favoráveis destacam-se: a localização, o patrimônio histórico e o ambiente que reúne arte e cultura, bares, restaurante e casas de espetáculos, tornando-o atrativo para o turismo; a aceitação da diversidade; a concentração de empreendimentos criativos e o interesse de moradores e empreendedores no seu desenvolvimento como espaço criativo. Entre as limitações estão: as disputas entre moradores, proprietários de bares e promotores de eventos; a falta de comunicação; a ausência de laços fortes e de articulação entre atores ligados à economia criativa em prol de objetivos comuns; o risco de supervalorização de imóveis na região e de afastamento de artistas e estudantes para outros bairros, descaracterizando o seu tecido constituinte. Como principais contribuições deste estudo, alerta-se para: (a a incorporação acrítica da noção de economia criativa por instituições públicas e privadas, reproduzindo modelos internacionais; (b o predomínio do interesse em ganhos econômicos em detrimento da preservação de aspectos históricos e culturais do bairro; (c a desarticulação entre os atores do território, o que amplia conflitos e compromete a construção de uma proposta integrada para a constituição de um polo criativo; e (d o uso do conceito de território criativo para uma compreensão do espaço mais profunda do que a de polos criativos, que enfatiza elementos objetivos e convergentes, deixando de explorar contradições e

  7. La felicidad laboral como estrategia de desarrollo empresarial. Caso eurofish

    OpenAIRE

    Cevallos Zambrano, Doris Patricia

    2014-01-01

    Este estudio busca demostrar el valor de las personas como el intangible más importante de la empresa, y gestionarlos de manera innovadora para conseguir a través de ellos el desarrollo que toda empresa busca. La información lasmada ha sido recabada por medio de fuentes primarias en la empresa Eurofish, y complementada con investigación bibliográfica. Mediante estas técnicas se ha determinado que la felicidad laboral es una función de la gerencia de talento humano y una responsabilidad de la ...

  8. A ironia como estratégia comunicativa e argumentativa

    Directory of Open Access Journals (Sweden)

    Ida Lucia Machado

    2014-06-01

    Full Text Available Neste artigo, tomando por base dados vindos da teoria polifônica de Bakhtin (1970a, 1970b e também alguns conceitos que Ducrot (1984 elaborou a partir desta, procuramos mostrar no âmbito de uma teoria de análise do discurso – no caso, a Semiolinguística de Charaudeau (1983, 1992, 2008 - alguns dos procedimentos que levam à construção da ironia, tendo em vista que, para nós, este fenômeno linguageiro aparece como um meio de comunicação suscetível de criar estratégias argumentativas, ainda que estas se apresentem de forma não-convencional. Para ilustrar o que foi dito, tomamos como base de reflexão excertos do livro de memórias ou da narrativa de vida de um artista francês cujo modo de escrever poderia se enquadrar na categoria dos escritos carnavalescos, segundo Bakhtin (1970b.

  9. Surface science models of CoMoS hydrodesulfurisation catalysts

    Energy Technology Data Exchange (ETDEWEB)

    De Jong, A.M.; De Beer, V.H.J.; Van Veen, J.A.R.; Niemantsverdriet, J.W. [Schuit Institute of Catalysis, Eindhoven University of Technology, Eindhoven (Netherlands)

    1997-07-01

    Characterization of supported catalysts with surface spectroscopic techniques is often limited due to restraints imposed by the support material. The use of flat conducting substrates as a model support offers a way to apply these techniques to their full potential. Such surface science models of silica and alumina supported CoMoS catalysts have been made by impregnating thin SiO{sub 2} and Al{sub 2}O{sub 3} films with a solution of nitrilotriacetic acid (NTA) complexes of cobalt and molybdenum. X-ray Photoelectron Spectroscopy (XPS) spectra indicate that the order in which cobalt and molybdenum transfer to the sulfided state is reversed with respect to oxidic Co and Mo systems prepared by conventional methods, implying that NTA complexation retards the sulfidation of cobalt to temperatures where MoS{sub 2} is already formed. Catalytic tests show that the CoMoS model catalysts exhibit activities for thiophene desulfurisation and product distributions similar to those of their high surface area counterparts. 25 refs.

  10. El romanticismo como mito fundacional de lo joven

    Directory of Open Access Journals (Sweden)

    Jairo Hernando Gómez Esteban

    2009-01-01

    Full Text Available El propósito principal de este ensayo es el de contribuir a la configuración y delimitación del corpus conceptual sobre juventud desde una perspectiva histórica, asumiendo el romanticismo como mito fundacional de lo joven, es decir, como el movimiento estético-político que ha logrado incrustarse y prevalecer no sólo en los imaginarios y rituales sino en las prácticas políticas y culturales de los jóvenes y las jóvenes de los dos últimos siglos. La hipótesis que me propongo demostrar es que las fuentes de las diversas formas de expresión ético-estéticas y políticas de la subjetividad contemporánea encarnadas en lo joven, no sólo se encuentran en el romanticismo, sino que siguen manifestándose con toda su fuerza y plenitud.

  11. Una aproximación a Wikipedia como polisistema cultural

    Directory of Open Access Journals (Sweden)

    Elisa Alonso-Jiménez

    2015-01-01

    Full Text Available En el presente trabajo, de naturaleza cualitativa e interpretativa, se abordan los alcances culturales de Wikipedia desde una aproximación transdisciplinar. Para ello, se analiza la literatura existente centrada en Wikipedia, procedente de medios de comunicación generalistas y de distintas disciplinas académicas (inteligencia artificial, ciencias de la información, educación y estudios de traducción. En dichos trabajos, fundamentalmente de naturaleza descriptiva, empírica y pragmática, se alude a Wikipedia como enciclopedia colaborativa en línea que aúna mecanismos de creación de contenido y de innovación procedentes del software libre. Nuestra propuesta reclama la pertinencia de recurrir a trabajos teóricos que contemplen la dimensión cultural de Wikipedia. Desde una aproximación semiótica, basamos nuestra hipótesis de análisis en el imaginario social de Vázquez Medel y la Teoría de los polisistemas de Even-Zohar, en los que encontramos claves para la consideración de Wikipedia como sistema cultural, en tanto que repositorio de conocimiento y relaciones humanas.

  12. Religião como solvente: uma aula

    Directory of Open Access Journals (Sweden)

    Antônio Flávio Pierucci

    2006-07-01

    Full Text Available Em oposição à visão de Durkheim, para quem a religião atua como religação dinamogênica do indivíduo com a sociedade a que pertence, este ensaio sustenta que hoje a força social da religião está na capacidade de dissolver antigas pertenças e linhagens religiosas estabelecidas. Com base na obra de Max Weber, argumenta-se que a religião universal de salvação individual, forma religiosa que tende a predominar sobre as demais, funciona como um dispositivo que desliga as pessoas do contexto cultural de origem.On the opposite direction of Durkheim, to whom the role of religion is to reconnect the individual with the society he belongs, this essay states that nowadays religion’s social power is quite the opposite: it separates people from its origins. Taking Max Weber’s work as a guideline, it supports that universal religion of individual salvation, the religious form that usually predominates, works as a device that disconnects people from their mother-culture.

  13. El maestro como formador y cultor de la vida

    Directory of Open Access Journals (Sweden)

    Nahyr Remolina De Cleves

    2004-01-01

    Full Text Available El presente artículo describe y reflexiona sobre el proceso histórico del quehacer pedagógico y los aspectos fundamentales del maestro como formador y cultor de vida, desde la antigüedad hasta los albores del siglo XXI. El maestro auténtico posee unas características esenciales que lo distinguen como líder, formador y forjador de personas, potenciador de saberes y valores que coadyuvan al desarrollo humano. No sólo enseña contenidos e instruye sino que educa con las actitudes y ejemplos de vida. Se presentan aquí las cualidades del maestro integral en que se conjugan el conocimiento científico, las virtudes intelectuales, el sentido humanista, la visión prospectiva, creadora y transformadora, la defensa de la verdad y de la vida, el cultivo de los valores éticos, la edificación innovadora de la cultura y el compromiso permanente de educar para la libertad.

  14. La visión gerencial como factor de competitividad

    Directory of Open Access Journals (Sweden)

    José María González A.

    2010-08-01

    Full Text Available La Maestría en Administración de Empresas de la Universidad Santo Tomás ha venido realizando un estudio sectorial para la Industria de la comunicación gráfica de Bucaramanga, mediante la aplicación del Modelo para la Modernización de la Gestión de las Organizaciones (MMGO, desarrollado por la Universidad EAN. Dicho modelo provee información sobre los múltiples aspectos gerenciales de una organización, por lo tanto, en el presente caso se utilizará la información que el modelo aplicado provee sobre la visión gerencial y sus relaciones con el desarrollo integral de la organización y otras herramientas gerenciales que la utilizan como el análisis del entorno y herramientas que la vitalizan como la capacitación y el entrenamiento. Con esta información se pretende realizar un análisis que alimente la investigación macro que se viene realizando y a la vez, aportar evidencia empírica sobre la reflexión teórica que se desarrolla en la comunidad científica alrededor del concepto de visión gerencial.

  15. Carcinoma espinocelular em couro cabeludo inicialmente diagnosticado como queratoacantoma

    Directory of Open Access Journals (Sweden)

    Priscila Wolf Nassif

    2010-03-01

    Full Text Available O queratoacantoma pode com muita facilidade ser confundido com carcinoma espinocelular, tanto clínica quanto histopatologicamente. Só o queratoacantoma, entretanto, pode regredir de maneira espontânea. Relata-se caso de paciente com lesão exofídica, ulcerada e infiltrada em couro cabeludo previamente diagnosticada como queratoacantoma. O exame histopatológico confirmou carcinoma espinocelular, e a tomografia de crânio evidenciou invasão da calota craniana. Procedeu-se à excisão cirúrgica com margens amplas e confecção de retalho de rotação, seguida de tratamento adjuvante com quimioterapia e radioterapia. Há muitos relatos na literatura de carcinomas espinocelulareserroneamente diagnosticados como queratoacantomas demonstrando a dificuldade nessa diferenciação. Enquanto não se estabelecem métodos eficazes para distinguir as duas entidades, o tratamento de escolha deve ser a excisão cirúrgica.

  16. La responsabilidad social corporativa como eje de desarrollo sostenible

    Directory of Open Access Journals (Sweden)

    Gissela Bravo

    2013-12-01

    Full Text Available La responsabilidad social corporativa (RSC, también denominada por algunos autores como Responsabilidad Social Empresarial (RSE, es voluntaria y se sustenta en la ética. Considerar que debe ser así, para que las empresas realicen actividades limpias sin necesidad de implementar medidas desde la normativa legal. Las empresas tienen obligaciones morales con sus clientes internos, externos y la comunidad a la que se debe. Todos los propósitos de la empresa son logrados por estos grupos de interés, razón por la cual, el compromiso de la misma debe mantener un equilibrio entre la riqueza y moralidad. Para el desarrollo de ésta investigación se tomó como referencia un estudio sobre Responsabilidad Social Empresarial del Ecuador en el año 2012, realizado por el IDE Business School, Partiendo de éste estudio, se aplicó una encuesta considerando las opiniones de los representantes de Responsabilidad Social de empresas públicas, privadas y Organizaciones de la Sociedad Civil del cantón Portoviejo. PALABRAS CLAVES: Compromiso Social, Ética, Responsabilidad Humana, Valores Sociales.

  17. MUSGOS COMO BIOINDICADORES DE METAIS PESADOS NO AMBIENTE

    Directory of Open Access Journals (Sweden)

    Eliane Ferreira de SOUZA

    2017-12-01

    Full Text Available Recentemente, inúmeras pesquisas envolvendo degradação ambiental oriunda das poluições atmosférica, terrestre e aquática, tem como foco o uso de animais ou vegetais, que apresentem respostas no sentido de controlar e indicar o nível de deterioração nos ambientes afetados por ações antrópicas. Dentre os organismos indicadores denominados biomonitores, estão os musgos do Filo Bryophyta responsáveis por respostas significativas frente aos impactos gerados pelo descarte indevido de substâncias, que contêm em sua composição metais pesados. Os metais pesados são considerados um dos principais poluentes que afetam os recursos naturais. Geralmente, os mesmos são oriundos de técnicas agrícolas ou mecanismos urbanos que produzem resíduos. Nesta linha, o presente estudo de revisão visa relacionar, principalmente, os efeitos da poluição dos recursos naturais a partir do uso de musgos como bioindicadores de traços metálicos no ambiente.

  18. Celulitis orbitaria, celulitis frontal y empiema como complicaciones de sinusitis

    Directory of Open Access Journals (Sweden)

    Felipa Elena García García

    Full Text Available La celulitis orbitaria usualmente ocurre como complicación de infecciones de los senos para nasales, y la etiología es principalmente bacteriana. Para realizar un diagnóstico e implantar terapéutica temprana tiene gran importancia reconocer las manifestaciones clínicas de la sinusitis y las edades más afectadas, pues dada su ubicación anatómica, pueden complicarse también con infecciones del sistema nervioso central, que en la edad pediátrica tienen una connotación especial. Se presentan aquí dos pacientes de 10 y 14 años de edad respectivamente, que desarrollaron celulitis orbitaria en un caso, y celulitis frontal y empiema en el otro; así mismo, se muestran los medios diagnósticos utilizados para identificar signos tempranos de posibles complicaciones, con el objetivo que el pediatra pueda identificarlos, así como la terapéutica implantada para dar solución o evitar estas complicaciones.

  19. El federalismo cooperativo como factor catalizador de un Gobierno Abierto

    Directory of Open Access Journals (Sweden)

    Rafael Enrique Valenzuela Mendoza

    2013-01-01

    Full Text Available Este artículo tiene como propósito articular un marco de análisis que justifica la importancia de la colaboración entre gobiernos, bajo el supuesto de que un sistema rígido de competencias tiende a fragmentar la solución de los asuntos públicos en las agendas de gobierno. Un federalismo cooperativo, en tanto variable productora de relaciones intergubernamentales, da forma a un contexto que favorece impulsar soluciones más integrales en torno a demandas inscritas en el plan de acción, elaborado como requisito de pertenencia a la Alianza Internacional por un Gobierno Abierto. La propuesta llevada a Brasilia por la representación de México en junio de 2012, con la idea de promover la apertura gubernamental en el plano subnacional y local, tendrá mayores posibilidades de éxito si previamente se establecen bases mínimas para un federalismo cooperativo que facilite la gestión de los asuntos públicos establecidos en el plan de acción.

  20. Como antigas estátuas de bronze

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    Oliver Lubrich

    2010-01-01

    Full Text Available A interpretação de América usando motivos classicistas como modelos imperiais de apropriação, "antiquização", é uma das principais estratégias retóricas nos relatos de viagens de Alexander von Humboldt, Relation historique du voyage aux régions équinoxiales du Nouveau Continent (1814-1831. A partir da experiência colonial, esse discurso está carregado de tensão. O conceito de antiguidade é, assim, desautorizado e desconstruído. Os leitores são testemunhas da dissolução do classicismo europeu como dispositivo político-estético produzido pela diferença cultural."Antiquifying" America is a central rhetorical strategy in Alexander von Humboldt's Relation historique du voyage aux régions équinoxiales du Nouveau Continent (1814-1831. Over the course of the colonial experience, tension infuses the discourse and problems in the use of classicist motifs as imperial models of appropriation become apparent: metaphoric and metonymic references collide; positive and negative connotations overlap; incompatible modes of temporalization contrast with one another; colonial and dissident identifications coincide. The concept of "antiquity" is de-authorized, deconstructed. Readers witness the dissolution of European classicism as a politico-aesthetic 'dispositif' due to the experience of cultural difference.