Effect of the treatment with Euterpe oleracea Mart. oil in rats with Triton-induced dyslipidemia.

Science.gov (United States)

E Souza, Belmira S Faria; Carvalho, Helison O; Ferreira, Irlon M; da Cunha, Edilson L; Barros, Albenise Santana; Taglialegna, Talisson; Carvalho, José C T

2017-06-01

Dyslipidemias are defined as changes in lipid metabolism that have abnormal concentrations of lipids or lipoproteins in the bloodstream. Chronic increase in triglyceride and low-density lipoprotein (LDL-c) levels are known as risk factors for the atherogenesis process as well as other cardiovascular diseases (CVDs). The magnitude of the problems caused by dyslipidemias impels research by new agents that act in the prevention and control. Thus, products from the Amazonian biodiversity, such as Euterpe oleracea oil (OFEO), rich in unsaturated fatty acids (UFAs), constitutes a study source for the treatment of alterations in lipid metabolism. The present study aims to investigate the effect of OFEO treatment in rats with Triton-induced dyslipidemia (Tyloxapol WR1339). The physicochemical and chromatographic results confirmed the chemical composition of OFEO with a predominance of UFAs (67.83%), with Oleic acid being the majority (54.32%). At Triton-induced dyslipidemia, the animals treated with OFEO and Simvastatin showed a significant reduction in total cholesterol levels, with values ​​of 121.7±29.5 (pdyslipidemia, acting as antihypercholesterolemic and antihypertriglyceridemic, thus possibly contributing as a preventive agent for CVDs. Copyright © 2017 Elsevier Masson SAS. All rights reserved.

Effects of Açai (Euterpe oleracea Mart. berry preparation on metabolic parameters in a healthy overweight population: A pilot study

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Singh Betsy B

2011-05-01

Full Text Available Abstract Background The purpose of this study was to evaluate the effect of açai fruit pulp on risk factors for metabolic disorders in overweight subjects. The açaí palm (Euterpe oleracea Mart., which is native to South America, produces a small, black-purple fruit which is edible. The fruit has recently become popular as a functional food due to its antioxidant potential. Although several studies have been conducted in vitro and with animals, little is known about the potential health benefits in humans aside from an increase in plasma anti-oxidant capacity. Metabolic syndrome is a condition which is defined by a cluster of risk factors for cardiovascular disease and/or type-2 diabetes. Preliminary studies indicate that a reduction in reactive oxygen species can assist in the normalization of the metabolic pathways involved in this syndrome. Methods This was an open label pilot study conducted with 10 overweight adults (BMI ≥ 25 kg/m2 and ≤ 30 kg/m2 who took 100 g açai pulp twice daily for 1 month. The study endpoints included levels of fasting plasma glucose, insulin, cholesterol, triglycerides, exhaled (breath nitric oxide metabolites (eNO and plasma levels of high sensitivity C-reactive protein (hs-CRP. The response of blood glucose, blood pressure and eNO to a standardized meal was determined at baseline and following the 30 day treatment. Results Compared to baseline, there were reductions in fasting glucose and insulin levels following the 30 day treatment (both p Conclusion In this uncontrolled pilot study, consumption of açai fruit pulp reduced levels of selected markers of metabolic disease risk in overweight adults, indicating that further studies are warranted.

Numerical simulation of a 200 kW down draft gasifier using acai seed (Euterpe oleracea mart.) as fuel

Energy Technology Data Exchange (ETDEWEB)

Itai, Y.; Rocha, H.M.Z. [Universidade Federal do Para (UFPA), Belem, PA (Brazil). Faculdade de Engenharia Mecanica]. E-mails: yuuitai@ufpa.br; hendrick@ufpa.br; Brasil, A.M. [Universidade Federal do Para (UFPA), Belem, PA (Brazil). Faculdade de Engenharia Sanitaria e Ambiental]. E-mail: ambrasil@ufpa.br; Malico, I. [Universidade de Evora (Portugal)]. E-mail: imbm@uevora.pt

2008-07-01

In this work a thermochemical equilibrium model for downdraft gasifiers has been proposed. The model was compared to the model developed in Gordon and McBride (1994). The properties such as efficiency of cold gas, LHV and temperature of an Amazonian biomass Euterpe olearacea Mart. was simulated. The numerical simulations aimed the maximization of H{sub 2} and CH{sub 4} in a gasification process. The model simulated numerically the influence of the gasifying relative fuel/air ratio and the biomass moisture content on the syngas composition. Two values of moisture content 33% and 37.5% were suggested for the gasification of acai seed for the maximization of the H{sub 2} and CH{sub 4} concentrations in a range of the equivalence ratio, {phi}, between 2.3 and 4. The results also showed that to achieve the maximization of CH{sub 4} with {phi} = 4 the reaction temperature drops in average of 35.44%. (author)

Limitações nutricionais para o cultivo de açaizeiro em latossolo amarelo textura média, Estado do Pará Nutritional limitations for Euterpe oleracea in yellow latosol of Para State - Brazil

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Ismael de Jesus Matos Viégas

2004-08-01

Full Text Available A região amazônica apresenta condições edafoclimáticas favoráveis ao desenvolvimento de sistemas de cultivos utilizando fruteiras tropicais. O açaizeiro (Euterpe oleracea, Mart. desponta como uma das espécies de grande importância econômica para a fruticultura regional. A produção de fruteiras ainda é limitada pela carência de conhecimentos sobre diversos segmentos dos sistemas de produção, especialmente com relação a estudos sobre nutrição mineral de plantas. Dessa forma, em amostras superficiais de até 30 cm de profundidade de Latossolo Amarelo textura média do Município de Belém, Estado do Pará, conduziu-se experimento, em casa de vegetação, com plantas de açaizeiro, com o objetivo de identificar os nutrientes limitantes ao seu desenvolvimento, mediante a técnica do elemento faltante. O delineamento experimental foi inteiramente ao acaso, com quatro repetições e 14 tratamentos: completo (calagem, macro e micronutrientes, NPK; omissão de N; de P; de K; de Ca; de Mg; de S; de B; de Cu; de Fe; de Mn; de Mo e de Zn. Os resultados obtidos neste trabalho permitiram concluir que os macronutrientes mais limitantes para o crescimento de açaizeiros, em Latossolo Amarelo textura média, foram o fósforo, o nitrogênio, o potássio e o magnésio e entre os micronutrientes, o manganês.Aiming to study the nutritional limitation of macronutrients and micronutrients in açaizeiro plants (Euterpe oleracea Mart. in Yellow Latosol from the city of Belém, state of Pará - Brazil, this work was carried out under greenhouse conditions at Embrapa Amazonian Oriental. In this experiment it was used the missing element technique and the experimental design was a randomized block with four repetitions and fourteen treatments: Complete (liming, macro and micronutrients, NPK, omission of N; P; K; Ca; Mg; S; B; Cu; Fe; Mn; Mo and Zn. The results allowed to conclude that the macronutrients more limitant to growth of Euterpe oleracea, were

Development of O/W emulsions containing Euterpe oleracea extract and evaluation of photoprotective efficacy

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Cláudia Cecilio Daher

2014-09-01

Full Text Available Euterpe oleraceaMart. is a palm tree popularly known as açai, which is primarily found in northern Brazil. The açai's fruits contain anthocyanins, a class of polyphenols to which antioxidant properties have been attributed. The aim of this work was to develop O/W sunscreens emulsions containing açai glycolic extract (AGE and to evaluate both their physical stability and photoprotective efficacy. Emulsions containing AGE and sunscreens were formulated using different types and concentrations of polymeric surfactant (acrylates/C 10-30 alkyl acrylate crosspolymer and sodium polyacrylate. The influence of two rheology modifiers (polyacrylamide (and C13-14/isoparaffin (and Laureth-7 and Carbomer on the stability was also investigated. Physical stability was evaluated by preliminary and accelerated studies. Emulsions with 1.0% sodium polyacrylate were stable and exhibited non-newtonian pseudoplastic behavior and thixotropy. Photoprotective efficacy was evaluated by in vivo Sun Protection Factor (SPF and determination of Protection Factor of UVA (PF-UVA. When AGE was added to the sunscreen emulsion, no significant increase in the in vivo SPF value was observed. The emulsion containing AGE showed PF-UVA = 14.97, 1.69 of the SPF/PF-UVA ratio and a critical wavelength value of 378 nm, and may therefore be considered a sunscreen with UVA and UVB protection.

Effects of Açai (Euterpe oleracea Mart.) berry preparation on metabolic parameters in a healthy overweight population: a pilot study.

Science.gov (United States)

Udani, Jay K; Singh, Betsy B; Singh, Vijay J; Barrett, Marilyn L

2011-05-12

The purpose of this study was to evaluate the effect of açai fruit pulp on risk factors for metabolic disorders in overweight subjects. The açaí palm (Euterpe oleracea Mart.), which is native to South America, produces a small, black-purple fruit which is edible. The fruit has recently become popular as a functional food due to its antioxidant potential. Although several studies have been conducted in vitro and with animals, little is known about the potential health benefits in humans aside from an increase in plasma anti-oxidant capacity. Metabolic syndrome is a condition which is defined by a cluster of risk factors for cardiovascular disease and/or type-2 diabetes. Preliminary studies indicate that a reduction in reactive oxygen species can assist in the normalization of the metabolic pathways involved in this syndrome. This was an open label pilot study conducted with 10 overweight adults (BMI ≥ 25 kg/m² and ≤ 30 kg/m²) who took 100 g açai pulp twice daily for 1 month. The study endpoints included levels of fasting plasma glucose, insulin, cholesterol, triglycerides, exhaled (breath) nitric oxide metabolites (eNO) and plasma levels of high sensitivity C-reactive protein (hs-CRP). The response of blood glucose, blood pressure and eNO to a standardized meal was determined at baseline and following the 30 day treatment. Compared to baseline, there were reductions in fasting glucose and insulin levels following the 30 day treatment (both p < 0.02). There was also a reduction in total cholesterol (p = 0.03), as well as borderline significant reductions in LDL-cholesterol and the ratio of total cholesterol to HDL-cholesterol (both p = 0.051). Compared to baseline, treatment with açai ameliorated the post-prandial increase in plasma glucose following the standardized meal, measured as the area under the curve (p = 0.047). There was no effect on blood pressure, hs-CRP or eNO. In this uncontrolled pilot study, consumption of açai fruit pulp reduced levels

Management of asaí (Euterpe precatoria Mart.) for fruit production in southern Colombian Amazonia

OpenAIRE

Carolina Isaza Aranguren; Gloria Galeano Garcés; Rodrigo Bernal González

2014-01-01

The fruits of asaí (Euterpe precatoria Mart.) are a traditional food for Amazonian inhabitants who harvest it from wild populations, employing management practices that affect palm populations and productivity. Here we present management data on fruit harvesting in a Tikuna community in the Colombian Amazon. We identified the market structure in Leticia and evaluated the population structure and fruit productivity in a scarcely harvested forest and a heavily harvested one. We performed interv...

Antioxidant and cytotoxic activities of 'acai' (Euterpe precatoria Mart.)

International Nuclear Information System (INIS)

Galotta, Ana Lucia Q.A.; Boaventura, Maria Amelia D.; Lima, Luciana A. R.S.

2008-01-01

Decoction of roots of the Amazonian palm acai (Euterpe precatoria Mart.) is widely used by Brazilian and Peruvian people as an anti-inflammatory, to heal kidney and liver diseases and against snake bites. In this study, the antioxidant activity of extracts and flavonoids (quercetin, catechin, epicatechin, rutin and astilbin) isolated from roots and leaf stalks of E. precatoria was investigated using β-carotene in TLC plates and DPPH radical scavenging in a spectrophotometric bioassay. All extracts and flavonoids showed activity. Also, the cytotoxic activity of these extracts was evaluated by the brine shrimp (Artemia salina) larvicide bioassay and was lower than that of lapachol, used as control. The presence of flavonoids and sitosterol-3-O-β-D-glucopyranoside in the extracts can justify the use of the plant in traditional medicine. (author)

Antioxidant and cytotoxic activities of 'acai' (Euterpe precatoria Mart.)

Energy Technology Data Exchange (ETDEWEB)

Galotta, Ana Lucia Q.A. [Universidade Federal do Amazonas (UFAM), Manaus, AM (Brazil). Inst. de Ciencias Exatas. Dept. de Quimica; Boaventura, Maria Amelia D.; Lima, Luciana A. R.S. [Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG (Brazil). Dept. de Quimica

2008-07-01

Decoction of roots of the Amazonian palm acai (Euterpe precatoria Mart.) is widely used by Brazilian and Peruvian people as an anti-inflammatory, to heal kidney and liver diseases and against snake bites. In this study, the antioxidant activity of extracts and flavonoids (quercetin, catechin, epicatechin, rutin and astilbin) isolated from roots and leaf stalks of E. precatoria was investigated using {beta}-carotene in TLC plates and DPPH radical scavenging in a spectrophotometric bioassay. All extracts and flavonoids showed activity. Also, the cytotoxic activity of these extracts was evaluated by the brine shrimp (Artemia salina) larvicide bioassay and was lower than that of lapachol, used as control. The presence of flavonoids and sitosterol-3-O-{beta}-D-glucopyranoside in the extracts can justify the use of the plant in traditional medicine. (author)

Evaluation of composition of acai berry oil (Euterpe oleracea) submitted to sterilization

Energy Technology Data Exchange (ETDEWEB)

Machado, Ana Carolina H.R.; Lugao, Ademar B.; Rogero, Sizue O.; Bustillos, Jose Oscar V.; Pires, Maria Aparecida F. [Instituto de Pesquisas Energeticas e Nucleares IPEN/CNEN-SP, Sao Paulo, SP (Brazil)]. E-mail: acmachado@ipen.br

2007-07-01

Acai berry (Euterpe oleracea) is a native palm of Brazil, distributed for the entire Amazonian basin. Rich in essentials fatty acids (mainly oleic acid and linoleic acid), the Acai oil prevents abnormal conditions of the skin, as dermatitis and drying, and assists in the regeneration of the epidermis. Therefore, it is proposed a more effective topical administration of the Acai oil by its immobilization in BandGel type hydrogels, which is crosslinked and sterilized by ionizing radiation. The objective of this work was to evaluate the composition of the oil when submitted to a sterilizing dose of ionizing radiation. The oil composition was determined by gas chromatography connected with mass spectrometry (GC-MS). The results showed a small decrease in the concentration of ester acids and increase of some main products, i.e., ethyl oleic and palmitic acids. (author)

Evaluation of composition of acai berry oil (Euterpe oleracea) submitted to sterilization

International Nuclear Information System (INIS)

Machado, Ana Carolina H.R.; Lugao, Ademar B.; Rogero, Sizue O.; Bustillos, Jose Oscar V.; Pires, Maria Aparecida F.

2007-01-01

Acai berry (Euterpe oleracea) is a native palm of Brazil, distributed for the entire Amazonian basin. Rich in essentials fatty acids (mainly oleic acid and linoleic acid), the Acai oil prevents abnormal conditions of the skin, as dermatitis and drying, and assists in the regeneration of the epidermis. Therefore, it is proposed a more effective topical administration of the Acai oil by its immobilization in BandGel type hydrogels, which is crosslinked and sterilized by ionizing radiation. The objective of this work was to evaluate the composition of the oil when submitted to a sterilizing dose of ionizing radiation. The oil composition was determined by gas chromatography connected with mass spectrometry (GC-MS). The results showed a small decrease in the concentration of ester acids and increase of some main products, i.e., ethyl oleic and palmitic acids. (author)

Effect of Euterpe oleracea Mart. (Açaí) Oil on Dyslipidemia Caused by Cocos nucifera L. Saturated Fat in Wistar Rats.

Science.gov (United States)

Faria E Souza, Belmira S; Carvalho, Helison O; Taglialegna, Talisson; Barros, Albenise Santana A; da Cunha, Edilson Leal; Ferreira, Irlon Maciel; Keita, Hady; Navarrete, Andres; Carvalho, José Carlos Tavares

2017-09-01

Dyslipidemia is caused by disturbances in lipid metabolism that lead to chronic elevations of serum lipids, especially low-density lipoprotein (LDL)-cholesterol and triglycerides, increasing the risk of metabolic syndrome, obesity, diabetes, atherogenic processes, and cardiovascular diseases. The oil from the fruits of Euterpe oleracea (OFEO) is rich in unsaturated fatty acids with potential for treating alterations in lipid metabolism. In this study, we aimed to investigate the effect of OFEO on hyperlipidemia induced by Cocos nucifera L. saturated fat (GSC) in Wistar rats. Chromatographic profile showed that unsaturated fatty acids account for 66.08% in OFEO, predominately oleic acid (54.30%), and saturated fatty acids (palmitic acid 31.6%) account for 33.92%. GSC-induced dyslipidemia resulted in an increase in total cholesterol, LDL-cholesterol, triglycerides, glucose, and liver and abdominal fat, as well as atherogenic processes in the thoracic aorta. OFEO treatment did not reduce hypertriglyceridemia, but did reduce total cholesterol and LDL-cholesterol, thus contributing to the antiatherogenic action of OFEO. OFEO treatment inhibited the formation of atheromatous plaques in the vascular endothelium of the treated rats, as well as those who were treated with simvastatin. The results obtained suggest that OFEO has an antiatherogenic effect in a rat model of dyslipidemia.

Chemical constituents from roots and leaf stalks of acai (Euterpe precatoria Mart., Arecaceae)

International Nuclear Information System (INIS)

Galotta, Ana Lucia Queiroz de Assis; Boaventura, Maria Amelia Diamantino

2005-01-01

Phytochemical investigation of the hexane, ethyl acetate and methanolic extracts of roots and leaf stalks of Euterpe precatoria Mart. (acai), afforded stigmast-4-en-6β-ol-3-one (3); p-hydroxy benzoic acid (4); 3β-O-D-glucopyranosyl-sitosterol (5); β-sitosterol palmitate (6); mixtures of β-sitosterol and stigmasterol (1 and 2), α-, β-amyrin and lupeol (7, 8 and 9), friedelin-3-one and 28-hydroxy-friedelin-3-one (10 and 11) and α-, β-D-glucose (12, 13). Except for 1, 2 and 4, the other isolated constituents are described in the genus for the first time. Compounds 3 and 5 gave good results in the brine shrimp bioassay, which detects compounds with potential uses as antitumor agents, pesticides, etc.. (author)

Avaliação da estabilidade oxidativa do óleo bruto de açaí (Euterpe oleracea na presença de compostos fenólicos puros ou de extratos vegetais amazônicos Evaluation of oxidative stability of crude açai (Euterpe oleracea oil in the presence of pure phenolic compounds or Amazonian plant extracts

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Jonas Joaquim Mangabeira da Silva

2013-01-01

Full Text Available A final 241 µM of ascorbyl palmitate and 555 µM of the following antioxidants separately: BHA, myricetin and quercetin standards, and extracts of Byrsonima crassifolia, Inga edulis or Euterpe oleracea, were added to crude açai oil and submitted to the oxidation process at 60 ºC for 11 days. Among the antioxidants used, only the myricetin standard showed the ability to defer the oxidation process until the third day of treatment. B. crassifolia, I. edulis and E. oleracea extracts showed no preventive capacity against the oxidation process, despite their high concentration phenolic compounds and antioxidant activities.

Nutrição de mudas de açaizeiro sob relações cálcio:potássio:sódio em solução nutritiva Nutrition of açai seedlings (Euterpe oleracea Mart. under different ratios of calcium:potassium: sodium in nutrient solution

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Humberto Umbelino de Sousa

2004-02-01

Full Text Available Objetivando-se estudar diferentes relações entre os cátions cálcio, potássio e sódio na produção de matéria seca e acúmulo de macronutrientes em mudas de açaizeiro (Euterpe oleracea Mart., realizou-se um experimento em casa-de-vegetação no Departamento de Ciência do Solo da UFLA. Utilizou-se o delineamento estatístico em blocos casualisados com nove tratamentos em quatro repetições. Os tratamentos foram constituídos por nove relações cálcio: potássio: sódio (4:2:1, 3:3:1, 2:4:1, 1:5:1, 5:1:1, 4:1:2, 6:0:1; 0:6:1, e 4:2:0 em solução nutritiva. A unidade experimental constituiu-se de um vaso com capacidade para três litros de solução, contendo duas plantas. Avaliaram-se as seguintes características: produção de matéria seca e o acúmulo dos macronutrientes fósforo, cálcio, potássio, magnésio e enxofre na matéria seca da planta. A relação cálcio:potássio:sódio influenciou todas as características avaliadas; as soluções contendo cálcio, potássio e sódio nas relações 4:2:1 e 3:3:1 resultaram no desenvolvimento de mudas com maior produção de matéria seca e maior acúmulo de nutrientes.Aiming to evaluate the effects of different ratios of calcium, potassium and sodium cations on the mineral nutrition of açai seedlings (Euterpe oleracea Mart., a greenhouse experiment was carried out in the Soil Science Department at the Federal University of Lavras-UFLA. The randomized block design, with nine treatments and four replications, was used. The treatments were nine ratios of calcium, potassium and sodium (4:2:1, 3:3:1, 2:4:1, 1:5:1, 5:1:1, 4:1:2, 6:0:1; 0:6:1, e 4:2:0 in the nutrient solution. The experimental unit was a plastic pot with three liters of solution, containing two plants. The total dry matter and nutrient accumulation were evaluated. The relationship calcium:potassium:sodium influenced all the appraised characteristics, and the solutions containing calcium, potassium and sodium in the ratios

Aspectos morfo-anatômicos do embrião de Euterpe precatoria Mart. durante o processo germinativo Morphological and anatomical studies on germinating seeds of Euterpe precatoria Mart.

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Madalena Otaviano Aguiar

2002-09-01

Full Text Available Euterpe precatoria Mart. é uma palmeira amplamente distribuída na bacia Amazônica, em terra firme e em solos de várzea. Dos frutos obtém-se o "vinho do açaí" e do ápice caulinar o palmito, que fazem desta palmeira um importante recurso alimentar. Foi feita a descrição morfo-anatômica do embrião de Euterpe precatoria, durante o processo germinativo, possibilitando o entendimento do mesmo. As observações foram realizadas em microscopio óptico, a partir de cortes histológicos de secções longitudinais e transversais da semente em diversos estádios da germinação. O eixo embrionário é curvo. No início da germinação, forma-se externamente o botão cotiledonar contendo a futura planta. A radícula emerge primeiro, apresentando coifa bem desenvolvida, desenvolvendo-se mais rapidamente que a plúmula. O processo de formação das primeiras folhas é contínuo. À medida que o embrião se desenvolve, a região distal aumenta de tamanho, formando o haustório e ocupando o lugar do endosperma.Euterpe precatoria is a palm tree widespread in Amazon basin, in terra firme and várzea sites. The fruit is used for the production of Açaí wine, and the sten apex for the production of palm hearts (palmito, which are an important food source. Different stages of germinated açaí seed were studied in longitudinal and transversal sections, under a optical microscope. The embryonic axis is curved. In the early stages of germination, the integument is displaced, forming the cotyledonal bud and the future plant. The radicle emerges first, with a well developed root cap and develops faster than the plumula. The process of formation of the first leaves is continuous. As the embryo is developing, the distal region increases in size, forming the haustorium and occupying the place of the endosperm.

Management of asaí (Euterpe precatoria Mart. for fruit production in southern Colombian Amazonia

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Carolina Isaza Aranguren

2014-06-01

Full Text Available The fruits of asaí (Euterpe precatoria Mart. are a traditional food for Amazonian inhabitants who harvest it from wild populations, employing management practices that affect palm populations and productivity. Here we present management data on fruit harvesting in a Tikuna community in the Colombian Amazon. We identified the market structure in Leticia and evaluated the population structure and fruit productivity in a scarcely harvested forest and a heavily harvested one. We performed interviews to determine management and market practices and we established plots to identify population structure and productivity. Harvesting is mostly for self-supply and palm felling is the main method. The fruits are mostly consumed and marketed as juice. The asaí market is small and seasonal but it represents an important source of income for many, mainly indigenous, families. The population density was 1 680 individuals and 248 adults/ha in San Martín de Amacayacu, where harvesting was from 2 % of all adult palms, and 916 individuals and 30 adults/ha in Leticia, where harvesting was from 23 % of all adult palms. The population structure in both sites followed an in-verted J-curve in which the majority of the individuals were seedlings. Productivity was 2.2 ton/ha/ year in San Martín de Amacayacu and 0.33 ton/ha/ year in Leticia. The population in Leticia is heavily harvested to supply the local market and the consequences of this use are a reduction in population density and fruit productivity and a low abundance of individuals in all size classes.

Fruto de naidi (Euterpe oleracea y su perspectiva en la seguridad alimentaria colombiana

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Sandra Patricia Montenegro-Gómez

2015-01-01

Full Text Available Euterpe oleracea es una palma originaria de Suramérica, su distribución es netamente tropical y subtropical. Su fruto es altamente aprove - chado en Brasil, donde se conoce como açai. Comercializado tanto dentro como fuera del país, sus niveles de exportación han aumentado debido a resultados científicos que indican altas propiedades antioxidantes y nutritivas. Es considerado alimento funcional y de impor - tancia en el sostenimiento de la seguridad alimentaria. En Colombia, E. oleracea hace presencia en la región pacífica, principalmente en valles medios de los ríos Atrato y Magdalena, su fruto conocido como naidí se aprovecha en los departamentos de Nariño, Cauca, Valle del Cauca y Chocó. Habitantes del Pacífico valoran su fruto por sus cualidades nutritivas y por ser fuente de ingresos para muchas familias que comercializan en mercados locales. Su aprovechamiento se ve afectado debido a que las cosechas abundantes se dan solamente en dos épocas del año, originando priorización por el aprovechamiento del palmito (cogollo sobre el fruto, comprometiéndose el uso sustentable del recurso y la seguridad alimentaria, ya que la extracción de palmito, primero afecta la fructificación, y segundo no favorece la economía de la región, porque su explotación la hacen empresas extranjeras exportadoras. Por lo tanto, este recurso fitogenético requiere atención de entes gubernamentales e instituciones que contribuyan en el fortalecimiento de la comercialización del fruto teniendo como base sus bondades nutritivas y saludables.

DESENVOLVIMENTO E AVALIAÇÃO DA QUALIDADE DE SORVETE DE IOGURTE SIMBIÓTICO, DE LEITE DE BÚFALA ENRIQUECIDO COM POLPA DE AÇAÍ (Euterpe oleracea)

OpenAIRE

MONTEIRO, Ranna Catarine da Rocha; VELOSO, Carlos Ribeiro; NERES, Lilaine de Sousa; LOURENÇO JÚNIOR, José de Brito; PACHECO, Evelyn Azevedo; ABE SATO, Suenne Taynah; SANTOS, Marcos Antônio Souza dos; NAHUM, Benjamim de Souza; RIBEIRO, Illana de Araujo

2015-01-01

Functional foods as prebiotics and probiotics, ensure balanced and healthy intestinal flora and help in preventing chronic degenerative diseases, however, little use is made of these foods because of the difficulty of developing products with attractive sensory characteristics and viable micro-organisms throughout the useful life of the product. The objective of this study was to develop a symbiotic yogurt ice cream enriched with açaí (Euterpe oleracea) prepared from buffalo milk. For the pre...

Infestação de Aetalion reticulatum (Linnaeus (Hemiptera: Auchenorrhyncha: Aethalionidae em Plantas de Euterpe oleracea Martius (Arecaceae no Estado do Acre

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Rodrigo Santos

2015-04-01

Abstract. The açai palm (Euterpe oleracea Martius is a native palm tree from the Amazon region floodplains and may be indicated as the most economically profitable species of this genus. Its fruit pulp is extracted and widely consumed by the population of northern Brazil in several ways. With the expansion of the planted area many factors may affect the production and limit the cultivation, highlighting the occurrence of insect pests that cause losses in production. This report presents the first occurrence of the leafhopper Aetalion reticulatum (Linnaeus (Hemiptera: Auchenorrhyncha: Aethalionidae in E. oleracea plants. The occurrence of this insect associated with açai palms in Rio Branco, Acre, increases the list of hosts for this leafhopper in Brazil and reinforces the need for studies of population dynamics, survey of natural enemies, levels of damage and control methods in order to anticipate population outbreaks of this pest in commercial plantations of açai palms in the State.

Allometry of a neotropical palm, Euterpe edulis Mart. Alometria de uma palmeira Neotropical, Euterpe edulis Mart

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Luciana F. Alves

2004-06-01

Full Text Available The stem allometry (stem diameter vs. tree height of a Neotropical palm (Euterpe edulis found in rain and seasonal forest of Southeastern Brazil was examined. Observed height-diameter relationships along the stem (diameter at ground level, (dgl, and diameter at breast height (dbh were compared to three theoretical stability mechanical models: elastic similarity, stress similarity and geometric similarity. Slopes of log-transformed height-diameter relationships did not lie near those predicted by any stability mechanical models. Significant differences in stem allometry were found when comparing dgl to dbh, suggesting greater increase in dbh with height. The relationship between stability safety factor (SSF and palm height showed that both dgl and dbh were found to be above McMahon's theoretical buckling limit for dicotyledonous trees, but some individuals approached this limit in relation to dbh. Despite displaying a similar decreasing pattern of SSF with height, differences found in SSF along the stem - greater SSF for dgl when compared to dbh - indicate that the risk of mechanism failure in palms depends upon the size and varies along the stem. Distinct allometric relationships along the stem obtained for Euterpe edulis may be reflecting possible differences in stem design and growth strategies.Neste trabalho foram analisadas as relações entre o diâmetro e a altura de uma palmeira Neotropical (Euterpe edulis comum na Floresta Atlântica do SE do Brasil. As relações observadas entre a altura e o diâmetro ao longo do estipe (diâmetro ao nível do solo (DAS, e diâmetro ao nível do peito (DAP foram comparadas a três modelos teóricos de estabilidade mecânica: similaridade elástica, similaridade de estresse e similaridade geométrica. As inclinações das regressões altura-diâmetro não se ajustaram a nenhum dos modelos de estabilidade mecânica. Diferenças significativas na alometria do estipe foram encontradas comparando-se as rela

Avaliação da estabilidade oxidativa do óleo bruto de açaí (Euterpe oleracea na presença de compostos fenólicos puros ou de extratos vegetais amazônicos

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Jonas Joaquim Mangabeira da Silva

2013-01-01

Full Text Available A final 241 µM of ascorbyl palmitate and 555 µM of the following antioxidants separately: BHA, myricetin and quercetin standards, and extracts of Byrsonima crassifolia, Inga edulis or Euterpe oleracea, were added to crude açai oil and submitted to the oxidation process at 60 ºC for 11 days. Among the antioxidants used, only the myricetin standard showed the ability to defer the oxidation process until the third day of treatment. B. crassifolia, I. edulis and E. oleracea extracts showed no preventive capacity against the oxidation process, despite their high concentration phenolic compounds and antioxidant activities.

Genetic structure, mating system, and long-distance gene flow in heart of palm (Euterpe edulis Mart.).

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Gaiotto, F A; Grattapaglia, D; Vencovsky, R

2003-01-01

We report a detailed analysis of the population genetic structure, mating system, and gene flow of heart of palm (Euterpe edulis Mart.-Arecaceae) in central Brazil. This palm is considered a keystone species because it supplies fruits for birds and rodents all year and is intensively harvested for culinary purposes. Two populations of this palm tree were examined, using 18 microsatellite loci. The species displays a predominantly outcrossed mating system (tm = 0.94), with a probability of full sibship greater than 70% within open-pollinated families. The following estimates of interpopulation genetic variation were calculated and found significant: FIT = 0.17, FIS = 0.12, FST = 0.06, and RST = 0.07. This low but significant level of interpopulation genetic variation indicates high levels of gene flow. Two adult trees were identified as likely seed parents (P > 99.9%) of juveniles located at a distance of 22 km. Gene flow over such distances has not been reported before for tropical tree species. The establishment and management of in situ genetic reserves or ex situ conservation and breeding populations for E. edulis should contemplate the collection of several hundreds open-pollinated maternal families from relatively few distant populations to maximize the genetic sampling of a larger number of pollen parents.

Clarified Açaí (Euterpe oleracea Juice as an Anticonvulsant Agent: In Vitro Mechanistic Study of GABAergic Targets

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Gabriela P. F. Arrifano

2018-01-01

Full Text Available Seizures affect about 50 million people around the world. Approximately 30% of seizures are refractory to the current pharmacological arsenal, so, the pursuit of new therapeutic alternatives is essential. Clarified Euterpe oleracea (EO juice showed anticonvulsant properties similar to diazepam in an in vivo model with pentylenetetrazol, a GABAA receptor blocker. This study investigated the effects of EO on the main GABAergic targets for anticonvulsant drugs, analyzing the effect on the GABA receptor’s benzodiazepine and picrotoxinin binding sites and the GABA uptake. Primary cultures of cortical neurons and astrocytes were treated with EO (0–25% for up to 90 min. [3H]Flunitrazepam and [3H]TBOB binding, [3H]GABA uptake, cell viability, and morphology were assayed. Nonlethal concentrations of EO increased agonist binding and decreased antagonist binding in cortical neurons. Low concentrations significantly inhibited GABA uptake, especially in astrocytes, suggesting an accumulation of endogenous GABA in the synaptic cleft. The results demonstrate, for the first time, that EO can improve GABAergic neurotransmission via interactions with GABAA receptor and modulation of GABA uptake. Understanding these molecular mechanisms will help in the treatment of seizures and epilepsy, especially in developing countries where geographic isolation and low purchasing power are the main barriers to access to adequate treatment.

Avaliação da Composição Centesimal, Mineral e Teor de Antocianinas da Polpa de Juçaí (Euterpe edulis Martius)

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Leilson de Oliveira Ribeiro; Marisa Fernandes Mendes; Cristiane de Souza Siqueira Pereira

2015-01-01

A polpa de juçaí, fruto da palmeira juçara (Euterpe edulis Martius) encontrada nas áreas da Mata Atlântica e a polpa de açaí, fruto da palmeira juçara (Euterpe oleracea Martius) cultivado na Floresta Amazônica, foram caracterizadas obtendo assim sua composição centesimal, mineral e também seu teor de antocianinas. Com os resultados obtidos foi possível fazer um estudo comparativo da concentração de antocianinas das duas polpas congeladas e verificar a importância do consumo destes alimentos, ...

Dynamique des savoirs et des échanges d’un produit de collecte en territoire transfrontalier Dinâmicas de conhecimentos e trocas de uma fruta de palmeira numa região fronteiriça. O caso do açaí (Euterpe oleracea Mart. na região do baixo Oiapoque Dynamics of knowledge and exchanges of a non timber forest product in border territory. The case of açai (Euterpe oleracea Mart. in the Lower Oyapock

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Laval Pauline

2012-11-01

Full Text Available Le palmier wassaï (Euterpe oleracea Mart., aussi appelé açaí au Brésil et pinot en Guyane, est natif du bassin amazonien, en Amérique du Sud. Dans cette région, il est d’une importance alimentaire majeure. En effet, on peut tirer de ses fruits un nectar très riche qui constitue une part importante de la consommation de certains peuples d’Amazonie, notamment pendant la période de fructification du palmier. Ce nectar est désormais à la mode en milieu urbain au Brésil, et s’exporte sous une large gamme de produits dérivés à l’international, grâce à ses vertus énergétiques et anti-oxydantes reconnues. Si la majeure partie de la production et de la transformation de wassaï se déroule à Belém, dans l’Etat du Pará au Brésil, de nombreuses autres filières existent à plus petite échelle, car le fruit comme le nectar, très périssables, supportent mal le transport. Cet article explicite la filière de production du nectar de wassaï du bas Oyapock, région frontalière entre la Guyane française et le Brésil. Nous étudions, du point de vue de l’ethnoécologie, les impacts de la frontière sur la dynamique des savoirs et des échanges du wassaï. Plus de 100 entretiens semi-directifs ont été menés chez les différents groupes ethniques du bas Oyapock, ainsi que des travaux d’observation participante de localisation des zones de croissance du wassaï, et un lexique spécialisé trilingue a été réalisé. Les résultats révèlent une très grande diversité de savoirs, de savoir-faire et d’usages de ce palmier, parmi les 9 groupes ethniques recensés dans la région. Ces usages sont le plus souvent spécifiques à chaque groupe, et en perte de vitesse, sauf la consommation de nectar, qui est commune à tous les groupes ethniques, en augmentation générale. Les savoirs et techniques consacrés à la domestication et à la préparation du nectar sont explicités. Dans le but de comprendre la répartition du

In vitro approaches to assess the effects of açai (Euterpe oleracea) digestion on polyphenol availability and the subsequent impact on the faecal microbiota.

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Alqurashi, Randah M; Alarifi, Sehad N; Walton, Gemma E; Costabile, Adele F; Rowland, Ian R; Commane, Daniel M

2017-11-01

A considerable proportion of dietary plant-polyphenols reach the colon intact; determining the effects of these compounds on colon-health is of interest. We hypothesise that both fibre and plant polyphenols present in açai (Euterpe oleracea) provide prebiotic and anti-genotoxic benefits in the colon. We investigated this hypothesis using a simulated in vitro gastrointestinal digestion of açai pulp, and a subsequent pH-controlled, anaerobic, batch-culture fermentation model reflective of the distal region of the human large intestine. Following in vitro digestion, 49.8% of the total initial polyphenols were available. In mixed-culture fermentations with faecal inoculate, the digested açai pulp precipitated reductions in the numbers of both the Bacteroides-Prevotella spp. and the Clostridium-histolyticum groups, and increased the short-chain fatty acids produced compared to the negative control. The samples retained significant anti-oxidant and anti-genotoxic potential through digestion and fermentation. Dietary intervention studies are needed to prove that consuming açai is beneficial to gut health. Copyright © 2017 Elsevier Ltd. All rights reserved.

Avaliação da Composição Centesimal, Mineral e Teor de Antocianinas da Polpa de Juçaí (Euterpe edulis Martius

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Leilson de Oliveira Ribeiro

2015-07-01

Full Text Available A polpa de juçaí, fruto da palmeira juçara (Euterpe edulis Martius encontrada nas áreas da Mata Atlântica e a polpa de açaí, fruto da palmeira juçara (Euterpe oleracea Martius cultivado na Floresta Amazônica, foram caracterizadas obtendo assim sua composição centesimal, mineral e também seu teor de antocianinas. Com os resultados obtidos foi possível fazer um estudo comparativo da concentração de antocianinas das duas polpas congeladas e verificar a importância do consumo destes alimentos, classificados como funcionais, devido às propriedades antioxidantes de suas antocianinas no combate dos radicais livres no organismo humano.

Catolé palm (Syagrus oleracea Mart fruits: fatty and amino acids composition

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Moreira, Rosalynd V. R.

2003-06-01

Full Text Available Catolé Palm (Syagrus oleracea Mart Fruits were analysed for their chemical composition. The pulp and kernel portions contained 0.7 and 40.0% lipids. Freshly extracted kernel oil showed a small concentration (0.4 meq/kg of peroxides but did not contain free fatty acids. The iodine and saponification values were 27.4 and 226, respectively. A large qualitative as well as quantitative difference in the fatty acid composition between the catolé pulp and kernel oil was observed. Fifteen and 19 fatty acids were identified in the pulp and kernel oil, respectively. These oils contained 48.9 and 73.2 % saturated fatty acids. The principal saturated fatty acids of the pulp oil was palmitic (C16 acid, while that of kernel oil was lauric (C12 acid. Oleic acid was the main monounsaturated fatty acid in both oils. In pulp oil, linoleic (C18:2 and linolenic (C18:3 were present at 23.5 and 11,3% concentrations, while kernel oil contained only linoleic acid (3.59%. In relation to amino acid composition of proteins, pulp proteins presented better amino acid profile than kernel proteins. In pulp proteins, the essential amino acids were present at concentrations higher than recommended by FAO except for methionine and lysine, while kernel proteins were deficient in all essential amino acids except phenylalanine, isoleucine and threonine.Los frutos de la Palmera catolé (Syagrus oleracea Mart fueron analizados para determinar su composición química. Las fracciones de la pulpa y almendra contenían 0,7 y 40.0 % de lípidos. El aceite de almendra fresca mostró una pequeña concentración de peróxidos pero no presentó ácidos grasos libres. El índice de iodo y de saponificación fueron 27,4 y 226, respectivamente. Fue observada una gran diferencia cualitativa como también cuantitativa en la composición de ácidos grasos entre el aceite de la pulpa y de la almendra. 15 y 19 ácidos grasos fueron identificados en el aceite de la pulpa y de la almendra

IMPACTO DA REFRIGERAÇÃO SOBRE VARIÁVEIS DE QUALIDADE DOS FRUTOS DO AÇAIZEIRO (EUTERPE OLERACEA*

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DARLY RODRIGUES POMPEU

2009-09-01

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Os frutos do açaizeiro (Euterpe oleracea são processados de 24 a 72 horas após sua coleta, permanecendo este tempo em condições de umidade relativa e temperatura altas, favorecendo um rápido crescimento microbiano e a oxidação de seus principais compostos antioxidantes, as antocianinas. A fi m de diminuir estas degradações, avaliouse o impacto da refrigeração (5, 10, 15°C, frente à temperatura ambiente da região (30°C, bem como o tempo de estocagem (0, 8, 20, 27, 44 e 70 horas sobre a perda de massa dos frutos, a carga microbiológica e a concentração de antocianinas. O tempo e as temperaturas de refrigeração tiveram um efeito altamente signifi cativo (p<0,001 nas três respostas estudadas. Determinou-se ainda a capacidade calorífica dos frutos a 30ºC (3,84 kJ kg-1°C-1. A temperatura dos frutos armazenados a temperatura ambiente aumentou de 25ºC para, aproximadamente, 30ºC depois de 11 horas de armazenamento, após este período a temperatura oscilou entre 29 e 31ºC.

Valor nutricional da polpa de açaí (Euterpe oleracea Mart) liofilizada Lyophilized açaí pulp (Euterpe oleracea, Mart.) nutritional value

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Ellen Mayra da Silva Menezes; Amanda Thiele Torres; Armando Ubirajara Sabaa Srur

2008-01-01

O Brasil é o maior produtor, consumidor e exportador da bebida açaí produzida a partir dos frutos do açaizeiro. Esta bebida ou a polpa de açaí são normalmente comercializadas a temperatura ambiente ou na forma congelada, levando à perdas nutricionais importantes. Este trabalho objetivou analisar alguns nutrientes da polpa de açaí liofilizada. Os resultados de determinações analíticas mostraram que esse produto na forma de pó é um alimento altamente calórico, 489,39 Kcal/100 g de polpa liofili...

Chemical, physico-chemical and sensory characterization of mixed açai (Euterpe oleracea and cocoa´s honey (Theobroma cacao jellies

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Biano Alves de Melo Neto

2013-06-01

Full Text Available Four formulations of mixed açaí (Euterpe oleracea (A and cocoa´s honey (Theobroma cacao (CH jellies were prepared according to the following proportions: T1 (40% A:60% CH, T2 (50% A:50% CH, T3 (60% A: 40% CH and T4 (100% A - control. All formulations were prepared using a rate 60:40 (w/w of sucrose and pulp, plus 0.5% pectin and the products reached to average of 65% soluble solids content. The jellies were analyzed by chemical and physicochemical (titratable acidity, pH, soluble solid content, dry matter, total protein, lipids, vitamin C and calories and sensory characteristics; also were evaluated levels of P, K, Ca, Mg, Fe, Zn, Cu and Mn. It was used a hedonic scale of 7 points to evaluate the attributes: overall impression, spreadability, brightness, flavor, texture and color, and also was verified the purchase intention score. The titratable acidity and pH ranged from 0.46 to 0.64% and 3.35 to 3.64, respectively, that are within the range found at most fruit jellies. The soluble solids content ranged between 65.2 and 65.5 ºBrix. The sensory acceptance results showed that all treatments (T1, T2, T3 and T4 presented means of sensory attributes above 4, demonstrating good acceptance of the product, but the treatment T1 presented the higher scores for the evaluated attributes. Cocoa´s honey added a positive influence on the attributes of color, texture and spreadability.

Análise de crescimento de açaizeiros em áreas de várzea do estuário amazônico Growth analysis of açaí palm trees (Euterpe oleracea Mart. in floodplain of Amazon estuary

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OSCAR LAMEIRA NOGUEIRA

2000-11-01

Full Text Available Com o objetivo de analisar o crescimento de açaizeiros (Euterpe oleracea Mart. em áreas de várzea submetidas à exploração de palmito, visando ao manejo racional da espécie, foi realizado estudo no município de Igarapé-Miri, Pará. Foram amostrados todos os estipes e rebrotes de três plantas de cada idade após o corte (12, 24, 36 e 48 meses após a extração do palmito, e avaliada a matéria seca dos seguintes componentes: folíolos, ráquis + pecíolos, bainhas + palmitos, e estipes. As plantas selecionadas são representativas da população quanto à altura média dos estipes, número de perfilhos e número de folhas. A produção de matéria seca total foi de 2,68, 5,25, 9,23 e 42,91 kg por planta no 12º, 24º, 36º e 48º mês após a extração do palmito, respectivamente. Nos açaizais recém-explorados, os folíolos representaram cerca de 40% do peso total da parte aérea da planta, e os estipes, 10%. Após 48 meses, em açaizais recompostos, os estipes foram responsáveis por 73% do peso total da parte aérea da planta, e os folíolos, somente por 10%. Doze meses após o corte do palmito, os açaizeiros apresentavam altura média de 1 m, e atingiram mais de 3 m após 48 meses.With the objective of analyzing the palm heart tree growth, in lowland areas submitted to the palm heart exploration, aiming to subsidize the rational handling of the species, a study was accomplished in the county of Igarapé-Miri, PA, Brazil. All of the stems and new budding of three plants of different ages (12, 24, 36 and 48 months after heart extraction were sampled, and the following components were collected for dry matter evaluation: leaflets, rachis + petioles, sheath + palm hearts and trunks. Representative clumps of the population were selected based on the medium height of the trunks, and number of shoots and leaves. The total dry matter production was 2.68, 5.25, 9.23 and 42.91 kg per plant at 12, 24, 36 and 48 months after the palm heart

Análise florística e estrutural de sistemas agroflorestais das várzeas do rio Juba, Cametá, Pará Floristic and structural analysis of agroforestry floodplain systems of the Juba river, Cametá, Pará

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Silvio Roberto Miranda dos Santos

2004-01-01

Full Text Available Estudou-se a composição florística e a estrutura de sistemas agroflorestais (SAF nas várzeas do rio Juba, Município de Cametá-PA. Utilizou-se sete parcelas de 0,25 ha (50 m x 50 m em SAF tradicionais. Cada parcela foi dividida em 25 sub-parcelas de 10 m x 10 m. As espécies foram classificadas quanto aos tipos de usos e em três níveis de comercialização. Nos sete SAF foram inventariados 21060 indivíduos/ha com CAP e" 10 cm ou (média de 3009 indivíduos/ha, pertencentes a 27 famílias, 53 gêneros e 61 espécies. Cinco espécies (8 % são comuns aos sete SAF. O uso energético (lenha e carvão foi o mais freqüente (63 %. Os SAF apresentaram maior percentual de espécies comerciais (46 %. Espécies comumente encontradas nas várzeas da Amazônia brasileira foram importantes nesse estudo: Euterpe oleracea Mart., Theobroma cacao L., Virola surinamensis (Rol. Warb., Hevea brasiliensis Muell. Arg. e Carapa guianensis Aubl. Euterpe oleracea e Theobroma cacao, juntas apresentaram Dr média de 80 % e IVImédio de 48 %. Os valores médios de abundância, área basal e IVI, bem como os percentuais de espécies potenciais e comerciais indicam grandes possibilidades de sustentabilidade se adotado manejo adequado e racional nesses importantes ecossistemas antrópicos da Amazônia Oriental.This study analyzed the floristic composition and the structure of traditional agroforestry systems (SAF in the floodplains of the river Juba, Cametá, Pará. The survey was made on seven plots of 0.25 ha (50 m x 50 m. Each plot was divided into 25 sub-plots of 10 m x 10 m. The species were classified in types of use and levels of commercialization. In seven SAF were surveyed 21060 individuals/ha with CAP e" 10 cm or (average of 3009 individuals/ha, belonging to 27 families, 53 genera and 61 species. Five species (8% were common to the seven SAF. The most frequent (63 % use of species was energy (firewood and coal. Most species were commercial (46%. Species

Desenvolvimento de um Iogurte Sabor Juçaí (Euterpe edulis Martius: Avaliação Físico-química e Sensorial

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Gislaine Natiele dos Santos Costa

2015-07-01

Full Text Available A busca constante por melhorias na qualidade de vida, saúde e bemestar dos consumidores tem levado ao desenvolvimento de novos produtos. Devido a esta influência o leite e seus derivados considerados como alimentos funcionais vêm apresentando um aumento significativo no consumo. Este trabalho apresenta o processo de desenvolvimento de um iogurte sabor juçaí, fruto da palmeira juçara (Euterpe edulis Martius. Rico em nutrientes como ferro e potássio. Este fruto é similar ao açaí fruto da palmeira Euterpe oleracea Martius, porém apresenta, segundo a literatura, maior teor de antocianinas. As antocianinas possuem alto poder antioxidante e inibem a ação de radicais livres nas células diminuindo seus efeitos ao organismo humano. No desenvolvimento do produto foram preparadas formulações contendo, respectivamente, 3%, 5% e 7% da polpa da fruta visando adquirir além de funcionalidade, melhor consistência e sabor para o produto. A aceitabilidade do produto foi avaliada por meio de análise sensorial.

Caracterização fenotípica e genotípica de progênies de pupunheira para palmito Phenotypic and genotypic characterization in pejibayes progenies for palm heart

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Gilberto Ken-Iti Yokomizo

2003-01-01

Full Text Available A pupunheira (Bactris gasipaes H.B.K. é considerada a espécie com maior potencial de produção de palmitos, em substituição aos tradicionais açaí (Euterpe oleracea Mart. e juçara (Euterpe edulis Mart.. Os objetivos deste trabalho foram estimar alguns parâmetros genéticos associados à avaliação de 31 progênies de meios-irmãos de pupunheiras e classificar as melhores progênies pelo teste de médias de Scott-Knott. O delineamento experimental usado foi o de blocos ao acaso com três repetições, com parcelas experimentais de cinco plantas. As avaliações dos caracteres de altura da planta no momento do corte (APC, diâmetro da planta na altura do colo (DPC e peso do palmito líquido (PPL foram realizadas aos 15, 26 e 37 meses após o plantio. A população avaliada apresentou variação genética disponível para seleção e não sofreu efeito de interação com os cortes; o caráter PPL deverá ser testado com maior número de repetições, sendo o caráter mais sensível a efeitos de cortes; a razão entre o coeficiente de variação genética e o coeficiente de variação do erro indica que existem dificuldades nos processos de seleção nos caracteres avaliados; a correlação genotípica entre os caracteres DPC e PPL apresenta-se promissora para facilitar a seleção indireta do caráter PPL pelo caráter DPC. O agrupamento de médias de Scott-Knott classificou as progênies em dois grupos.The pejibaye (Bactris gasipaes H.B.K. is the species with the best potential in supplying the production of palm heart, in substitution to açaí (Euterpe oleracea Mart. and juçara (Euterpe edulis Mart. species, traditionally produced. The objectives of this work were to estimate some genetic parameters associated to the evaluation of 31 pejibayes half-sib progenies and to classify the best progenies, using the Scott-Knott test for means classification. The experimental design was a randomized complete block with three replications, and

The Use of Thermal Analysis and Photoacoustic Spectroscopy in the Evaluation of Maltodextrin Microencapsulation of Anthocyanins from Juçara Palm Fruit (Euterpe edulis Mart. and Their Application in Food

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Ana Paula da Silva dos Passos

2015-01-01

Full Text Available Anthocyanins extracted from the pulp of the fruit of juçara palm (Euterpe edulis Mart. were microencapsulated with maltodextrin in order to stabilise them. Photoacoustic spectroscopy was used to investigate the photostability of the microencapsulated samples. Complementary differential scanning calorimetry and scanning electron microscopy measurements were also performed. Lyophilised extract had 14 340.2 mg/L of total anthocyanins, and the microencapsulation effi ciency of 93.6 %. Temperature analysis showed that maltodextrin conferred protection up to 70 °C for 120 min. Scanning electron microscopy showed that the microencapsulated particles had a flake-like morphology with a smooth surface, characteristic of lyophilisation processes. In addition, when added to yogurt, a red colourant was predominant in the samples at pH from 1.5 up to 5.0. Thermal analysis showed a weak interaction between the sample and the encapsulating agent, and photoacoustic data indicated the photostability of the matrix when exposed to light. Yogurts containing microencapsulated anthocyanins showed a more intense pink colour than yogurts treated with pure dye, and sensory analysis demonstrated that they can have good acceptance on the market. Microencapsulation enabled the innovative application of anthocyanins from juçara palm fruit, and complementary techniques allied to the photoacoustic spectroscopy were effective tools for its evaluation.

Crescimento e eficiência na utilização de nutrientes em plantas jovens de Euterpe edulis mart. sob dois níveis de irradiância, nitrogênio e fósforo Growth and nutrient use efficiency in Euterpe edulis Mart. seedlings under two levels of irradiance, nitrogen and phosphorus

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Rafael Illenseer

2002-10-01

Full Text Available O crescimento e a eficiência na utilização de nutrientes foram determinados para plantas jovens de Euterpe edulis Mart. cultivadas em dois níveis de irradiância (50% e 2% da luz solar, com irradiância máxima de 900 e 36 µmol de fótons m-2 s-1, respectivamente e dois níveis de nitrogênio (56,1 e 6,5 mg L-1 e fósforo (10,0 e 2,0 mg L-1. O nível de irradiância afetou o crescimento de plantas, sendo que plantas sob menor irradiância apresentaram menor crescimento. Sob maior suprimento de nutrientes as plantas apresentaram maior biomassa apenas sob maior irradiância. Maior suprimento de nitrogênio ou fósforo isoladamente não proporcionou crescimento semelhante àquele verificado em plantas sob maior suprimento conjunto dos dois nutrientes. A eficiência na utilização de nitrogênio (EUN aumentou com menor suprimento de nitrogênio independentemente do regime de luz. A eficiência na utilização de fósforo (EUP aumentou com o aumento da irradiância, mas não foi influenciada pelos níveis de fósforo. Os dados encontrados para E. edulis sugerem que para esta espécie 1 é improvável que a variação de nitrogênio e fósforo limite o crescimento de plantas jovens sob o dossel da floresta, o nível de irradiância parece antes ser o principal fator limitante do crescimento destas plantas neste ambiente, 2 o desempenho de plantas jovens pode ser favorecido pelo aparecimento de clareiras em função da plasticidade destas plantas em aumentar tanto a eficiência na utilização de nutrientes como a taxa de assimilação líquida de carbono em maior irradiância, 3 a maior eficiência na utilização de nitrogênio em menor oferta deste nutriente pode aumentar a competitividade de plantas jovens em ambientes com baixa oferta deste nutriente e 4 em alta irradiância, tanto a baixa disponibilidade de fósforo quanto a de nitrogênio pode inibir o crescimento de plantas jovens no campo .Growth and nutrient use efficiency were

ACCEPTANCE OF GUARIROBA [Syagrus oleracea (Mart. Becc.] PALM HEART IN PRESERVES OF DIFFERENT ORGANIC ACIDS ACEITAÇÃO DO PALMITO DE GUARIROBA [Syagrus oleracea (Mart. Becc.] EM CONSERVAS SOB DIFERENTES ÁCIDOS ORGÂNICOS

Directory of Open Access Journals (Sweden)

Nilson Gomes Jaime

2007-12-01

Full Text Available

The objective of this study was to evaluate the acceptation of guariroba [Syagrus oleracea (Mart. Becc.] palm heart preserved, acidified with organic the acids acetic, citric monohydrate, dl-lactic 85%, and dl-malic and L(+-tartaric. The 75 preserves of guariroba were processed, packed in glass bottles, immersed in brine acidified with different organic acids, in quantities sufficient to lower the pH of the mixture to about 4.3, projected for balance. The experiment was completely randomized, with five treatments and fifteen repetitions. Six glasses of palm hearts at random were used to determine the stabilizing pH of the preserves. Nine glasses were used to assess the acceptance of preserved guariroba and other physical and chemical analyses. The acceptance was evaluated through a tasting portion of approximately 50 g of the product, based on a hedonic scale of seven levels, applied to 500 not trained volunteers. All treatments have had acceptance exceeding 80% among judgers used to guariroba consumption, and over 65% among non-consumers. The treatment with malic acid (pH 3.50 obtained lower acceptance than those acidified with acetic (pH 4.01, citric (pH 3.67, lactic (pH 3.88, and tartaric acids (pH 3.43, which did not differ significantly among them. In such levels of pH, the costs of acidification with lactic acid, citric acid, and acetic acid were equivalent among them and lower than those processed with malic and tartaric acids.

KEY-WORD: Palmetto; canned heart-of-palm; botulism.

O objetivo deste trabalho foi avaliar a aceitação de palmito de guariroba [Syagrus oleracea (Mart. Becc.] em conserva, acidificada

INITIAL DEVELOPMENT OF AÇAÍ PLANTS UNDER SHADE GRADATION

Directory of Open Access Journals (Sweden)

ELEANDRO CANDIDO DAPONT

2016-01-01

Full Text Available ABSTRACT In order to evaluate the effect of different levels of shading on açai (Euterpe oleracea Mart. plants development, an experiment was conducted at the nursery of Floresta, Rio Branco, AC. The experiment was arranged in a completely randomized design with six treatments and four replications of 25 plants, set as full sunlight and 18%, 35%, 50%, 70%, and 80% shading. The evaluation occurred 125 days after transplantation and the variables were stem diameter, root length, length of the aerial part, total length, dry matter of root, dry matter of aerial part, and total dry matter. With exception of root length, there was significant difference between treatments for all variables. The production of açai plants should be performed using 40% shading.

Stabilization of açaí (Euterpe oleracea Mart. juice by the microfiltration process

Directory of Open Access Journals (Sweden)

Flávio Caldeira Silva

2016-01-01

Full Text Available Açaí berry, a Brazilian palm fruit widely distributed in northern South America, is acknowledged for its functional properties such as high antioxidant capacity and anti-inflammatory activities. Although the açaí juice is highly appreciated in Brazil and even worldwide, its commercialization is still limited. Microfiltration process is largely applied in juice processing, eliminating many of the traditional processing steps and reducing time, energy and addition of clarifying agents. Furthermore, microfiltration process may eliminate microorganisms and compounds responsible for turbidity in the juice. Current assay applies a microfiltration process to obtain a stabilized açaí permeate pulp. Microfiltrations of açaí pulp were carried out in a dead end configuration with a flat membrane of 0.22 μm pore size. Permeate pulp was characterized according to its turbidity, lipid concentration and microbiological analysis. Initial permeate flux was 103 kg m-2 h-1. After an initial flux decline during 30 min., due to membrane compaction and fouling occurrences, flux was stabilized at 20 kg m-2 h-1. The microfiltration process reduced the initial açaí pulp turbidity by 99.98% and lipids were not identified in the permeate. Microbiological analysis showed that the contamination by microorganism decreased in the permeate pulp when compared to that in raw açaí pulp.

Bio-based polyurethane for tissue engineering applications: How hydroxyapatite nanoparticles influence the structure, thermal and biological behavior of polyurethane composites.

Science.gov (United States)

Gabriel, Laís P; Santos, Maria Elizabeth M Dos; Jardini, André L; Bastos, Gilmara N T; Dias, Carmen G B T; Webster, Thomas J; Maciel Filho, Rubens

2017-01-01

In this work, thermoset polyurethane composites were prepared by the addition of hydroxyapatite nanoparticles using the reactants polyol polyether and an aliphatic diisocyanate. The polyol employed in this study was extracted from the Euterpe oleracea Mart. seeds from the Amazon Region of Brazil. The influence of hydroxyapatite nanoparticles on the structure and morphology of the composites was studied using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), the structure was evaluated by Fourier transform infrared spectroscopy (FT-IR), thermal properties were analyzed by thermogravimetry analysis (TGA), and biological properties were studied by in vitro and in vivo studies. It was found that the addition of HA nanoparticles promoted fibroblast adhesion while in vivo investigations with histology confirmed that the composites promoted connective tissue adherence and did not induce inflammation. In this manner, this study supports the further investigation of bio-based, polyurethane/hydroxyapatite composites as biocompatible scaffolds for numerous tissue engineering applications. Copyright © 2016 Elsevier Inc. All rights reserved.

Trois palmiers pour trois capitales amazoniennes

Directory of Open Access Journals (Sweden)

1997-01-01

Full Text Available Les trois grandes capitales amazoniennes ont leur palmier préféré : Euterpe oleracea à Belém, Astrocaryum aculeatum à Manaus, Mauritia flexuosa à Iquitos. Le premier cas trouve une explication simple : Euterpe oleracea est abondant dans la région de Belém et absent des deux autres régions. Les deux autres cas sont plus complexes, car Astrocaryum aculeatum a été propagé, sous l’effet des activités anthropiques, dans la région de Manaus et Mauritia flexuosa, dont l’aire de répartition couvre toute l’Amazonie, ne connaît un réel succès que dans la région occidentale, au Pérou. Ces trois exemples soulignent l’importance des cultures régionales qui conduisent à des utilisations différentes, parfois restrictives, des ressources naturelles et peuvent ainsi constituer une entrave à la mise en valeur du milieu forestier. TRES PALMERAS PARA TRES CAPITALES AMAZÓNICAS. Cada una de las tres grandes capitales amazónicas tiene su palma preferida: Euterpe oleracea es preciada en Belén, Astrocaryum aculeatum en Manaos, y Mauritia flexuosa en Iquitos. El primer caso tiene una explicación simple: Euterpe oleracea abunda en la región de Belén y es ausente en las dos otras regiones. Los dos otros casos se deben a razones más complejas, pues Astrocaryum aculeatum se ha propagado con el efecto de las actividades antrópicas en la región de Manaos, y Mauritia flexuosa, cuya área de distribución cubre toda Amazonía, es afamado únicamente en la región occidental, en el Perú. Estos tres ejemplos ponen de manifiesto la importancia de las culturas regionales que acarrean utilizaciones diferentes, a veces restrictivas, de los recursos naturales y pueden así constituir una traba al manejo del medio selvático. THREE PALMS FOR THREE AMAZONIAN CAPITAL CITIES. Each of the three Amazonian capital cities has its favorite palm: Euterpe oleracea for Belém, Astrocaryum aculeatum for Manaus, and Mauritia flexuosa for Iquitos. While the

Design studies for the electron storage ring EUTERPE

Energy Technology Data Exchange (ETDEWEB)

Boling, Xi

1995-05-18

The 400 MeV electron storage ring EUTERPE is under construction at Eindhoven University of Technology. The ring is to be used as an experimental tool for accelerator physics studies and synchroton radiation applications. The main task of the current research work is the electron optical design of the ring. Lattice design is a basis for machine design as a whole. Design aspects regarding the basic lattice, based on single particle dynamics, include determination of the equilibrium beam size and bunch length, design of achromatic bending sections, selection of tune values, correction of chromaticity, and minimization of the natural emittance in the ring. The basic lattice designed for the EUTERPE ring has a high flexibility so that different electron optical modes can be realized easily. In low energy storage rings with a high beam current, collective effects can cause a significant change in the bunch length, the transverse emittance and the beam lifetime. In order to ensure a good optical performance for the ring, the choice of suitable parameters concerning the vacuum and RF system are essential as far as collective effects are concerned. An estimation of the collective effects in the ring is given. The injector for EUTERPE is a 75 MeV racetrack microtron which is injected from a 10 MeV linac. In order to get sufficient beam current in the ring, a special procedure of continuous injection with an adjustable locally shifted closed orbit has been presented. Details of the injection procedure and numerical simulations are given. (orig./HSI).

Design studies for the electron storage ring EUTERPE

International Nuclear Information System (INIS)

Xi Boling.

1995-01-01

The 400 MeV electron storage ring EUTERPE is under construction at Eindhoven University of Technology. The ring is to be used as an experimental tool for accelerator physics studies and synchroton radiation applications. The main task of the current research work is the electron optical design of the ring. Lattice design is a basis for machine design as a whole. Design aspects regarding the basic lattice, based on single particle dynamics, include determination of the equilibrium beam size and bunch length, design of achromatic bending sections, selection of tune values, correction of chromaticity, and minimization of the natural emittance in the ring. The basic lattice designed for the EUTERPE ring has a high flexibility so that different electron optical modes can be realized easily. In low energy storage rings with a high beam current, collective effects can cause a significant change in the bunch length, the transverse emittance and the beam lifetime. In order to ensure a good optical performance for the ring, the choice of suitable parameters concerning the vacuum and RF system are essential as far as collective effects are concerned. An estimation of the collective effects in the ring is given. The injector for EUTERPE is a 75 MeV racetrack microtron which is injected from a 10 MeV linac. In order to get sufficient beam current in the ring, a special procedure of continuous injection with an adjustable locally shifted closed orbit has been presented. Details of the injection procedure and numerical simulations are given. (orig./HSI)

Rahvusvaheline mees Mart Laar = Mart Laar, international man / Ingvar Bärenklau

Index Scriptorium Estoniae

Bärenklau, Ingvar, 1967-

2006-01-01

Eesti ekspeaministri Mart Laari uutest väljakutsetest pärast Milton Friedmani nimelise auhinna saamist. Lisad: Fakte Mart Laari kohta; Teised Mart Laarist. Vt. samas: Laar soovitab suvisel Eestimaal ringi sõita

DETERMINAÇÃO DO MELHOR TRATAMENTO PARA A SUPERAÇÃO DA DORMÊNCIA EM GUARIROBA - Syagrus oleracea (Mart Becc DETERMINATION OF THE BEST TREATMENT TO OVERCOME THE DORMANCY OF GUARIROBA - Syagrus oleracea (MART BECC

Directory of Open Access Journals (Sweden)

João Batista Duarte

2007-09-01

Full Text Available

Palmeira que fornece um palmito amargo, a guariroba Syagrus oleracea (Mart Becc apresenta baixa taxa e um longo período para a germinação. A pesquisa buscou determinar um método para reduzir o tempo e aumentar a taxa de germinação das sementes dessa palmeira. Os tratamentos utilizados foram: 1 cocos colhidos com a polpa; 2 cocos recém-colhidos despolpados; 3 cocos secos submetidos a fogo e; 4 cocos secos. Foram feitas observações e contagens do número de sementes germinadas com 20, 30, 40 e 50 dias. O tratamento 3 não apresentou germinação até o final do período. Os resultados indicaram haver diferenças estatisticamente significativas entre os demais tratamentos (1, 2 e 4. Os cocos recém-colhidos mostraram superioridade na germinação em relação aos cocos secos, bem como os cocos despolpados em relação àqueles sem remoção de polpa (1% de probabilidade. O tratamento 2 mostrou acréscimo quadrático na germinação em função do tempo (Y = 0,5714 + 2,5X - 0,0257X2, com R2 = 0,99**, a partir dos 20 dias.

PALAVRAS-CHAVE: Guariroba; gueroba; germinação; dormência; Syagrus.

The guariroba is a palm tree that splies a bitter palmetto. This species has low germination and demands a long time for it. This study aimed to determine a treatment to increase germination and to reduce the time expended by guariroba seeds for it. The treatments were: 1- fresh cocoas with pulp; 2 - fresh cocoas without pulp; 3 - dry and fired cocoas; and 4 - dry cocoas. The observations were made at 20, 30, 40, and 50 days. The treatment 3 didn�

Revision of Bondariella Hustache & Bondar (Coleoptera: Curculionidae), with descriptions of the first species from the Amazon and notes on natural history.

Science.gov (United States)

Valente, Roberta De Melo; Cordeiro Júnior, Mariano Brandão

2015-09-15

Bondariella Hustache & Bondar, 1942 is revised. In addition to the redescription of the genus and its four previously known species, we report and describe the first species from the Amazonian region: Bondariella rudicula sp. nov. and Bondariella crenata sp. nov. We also provide a key to the species, illustrations and notes on natural history. All six species of Bondariella have been collected on palm flowers from Brazil, with the previously known species having only been recorded from species of Syagrus Mart. from the Atlantic Forest and Caatinga biomes. The two new species have only been recorded from species of Euterpe Mart. from the Amazon biome. Future work may prove if the associations with Syagrus and Euterpe are specific to the biomes.

Mart Ustav : me ei pruugi HI-viirusest kunagi vabaneda / Mart Ustav ; interv. Riho Laurisaar

Index Scriptorium Estoniae

Ustav, Mart, 1949-

2006-01-01

Tartu Ülikooli teadlane Mart Ustav töötab välja HI-viiruse vaktsiini. Kui enamik seniseid aidsiravimeid on keemilised, siis Mart Ustav usub, et on võimalik luua ka looduslik preparaat, mida on lihtne toota ja mis tulevikus võiks abivajajale maksta kõigest mõnisada krooni. Lisaks: Teised Mart Ustavist: Mart Loog, Toivo Maimets

Mart Laar tagasi reel / Mart Laar ; interv. Paavo Kangur

Index Scriptorium Estoniae

Laar, Mart, 1960-

2007-01-01

Riigikogu liige Mart Laar vastab küsimustele, mis puudutavad tema sissetulekuid ja investeeringuid, perekonda, tööd Swedpanki nõukogus, Gruusia, Montenegro ja Serbia nõustamist, sõprust Suurbritannia endise peaministri Margaret Thatcheriga ning suhteid mitmete Eesti poliitikutega. Lisa: Mart Laar kui investor

Suco de açaí (Euterpe oleracea Mart.: avaliação microbiológica, tratamento térmico e vida de prateleira Açai juice (Euterpe oleracea Mart.: microbiological evaluation thermal treatment and shelf life

Directory of Open Access Journals (Sweden)

Maria Assunção da Costa Souza

2006-12-01

Full Text Available Um dos principais problemas enfrentados quando da elaboração do suco de açaí é a contaminação por microrganismos, oriundas de problemas técnicos e higiênico-sanitários durante o processamento. Objetivando a erradicação desta microbiota no suco de açaí foram testados os processos de pasteurização e fervura em diferentes temperaturas e tempos e avaliou-se a vida de prateleira. Os sucos foram armazenados sob congelamento a -18 ºC por 120 dias e avaliados mensalmente quanto às características microbiológicas e físico-químicas. Os resultados microbiológicos do açaí in natura demonstraram elevada contaminação por coliformes totais (> 100 NMP/ml e fecais (> 110 NMP/ml, bolores e leveduras (> 300 UFC/ml. A pasteurização a 90ºC por cinco minutos e fervura por um minuto demonstraram eficiência na erradicação dos microrganismos, manutenção das características sensoriais e conservação do suco de açaí por 120 dias a -18 ºC.One of the principal problems encountered when elaborating açai juice is contamination by microorganisms, originating from technical and hygienic-sanitary problems during processing. With the object of eradication of this microbiota in the açai juice, the processes of pasteurization and ebullition at different temperatures and time were used, and shelf life was evaluated. The juice was stored in a freezer at 18ºC for 120 days and evaluated monthly with regard to the microbiological and physical-chemistry characteristics. The microbiological results of the açai in natura demonstrated high contamination for total coliformes (> 100 NMP/ml and feces (> 110 NMP/ml, moulds and yeasts (> 300 UFC/ml. The pasteurization at 90ºC for five minutes and ebullition for one minute demonstrated efficiency in eradicting microorganisms, maintaining sensore characteristics and conserving açai juice for 120 days at 18ºC.

B. oleracea var. capitata monosomic and disomic alien

Indian Academy of Sciences (India)

Five monosomic alien addition lines (MAALs) of Brassica rapa ssp. pekinensis – B. oleracea var. capitata were obtained by hybridization and backcrossing between B. rapa ssp. pekinensis (female parent) and B. oleracea var. capitata. The alien linkage groups were identified using 42 B. oleracea var. capitata linkage ...

Proposta conceitual de colhedoras autopropelidas de açaí (Euterpe oleracea Mart. para a região amazônica A conceptual proposal for self-propelled açai (Euterpe oleracea Mart. harvesters for the amazon region

Directory of Open Access Journals (Sweden)

Daniel Albiero

2012-06-01

Full Text Available A produção de frutos de açaí é proveniente, em sua maioria, do extrativismo, mas existe uma forte tendência de implementação de cultivos comerciais. A colheita dos frutos é realizada exclusivamente por escaladores, que se arriscam a sofrer acidentes, além de não terem grande eficiência na colheita. O objetivo deste trabalho foi realizar os desenhos conceituais de colhedoras autopropelidas de açaís em ambientes de matas de terra firme, matas de várzea e cultivos comerciais. Para tal foi utilizada a metodologia de projeto de matriz morfológica. Como resultados foram obtidos os desenhos conceituais destas novas colhedoras: Colhedora de açaí para matas de várzea nativas em estação de cheia; Colhedora de açaí para matas de terra firme nativas e matas de várzea em estação de seca; Colhedora de açaí para cultivos comerciais.Production of the açai fruit is mainly accomplished through manual collection; but there is a strong trend towards the implementation of commercial crops. Fruit harvesting is carried out exclusively by climbers who risk injury to themselves, besides not being very efficient at harvesting. The aim of this study was to produce design concepts for self-propelled açai harvesters for dry-land forest environments, floodplain forest environments and commercial crops. To this end we used the design methodology of a morphological matrix. The results obtained were the design concepts for the following new harvesters: an açai harvester for native floodplain forests in the wet season; a harvester for both dry-land and native floodplain forests in the dry season; a harvester for commercial crops.

Genetic variability of central-western European pine marten (Martes martes) populations

NARCIS (Netherlands)

Pertoldi, Cino; Elschot, Kelly; Ruiz-Gonzalez, Aritz; van de Zande, Louis; Zalewski, Andrzej; Munoz, Joaquin; Madsen, Aksel Bo; Loeschcke, Volker; de Groot, Arjen; Bijlsma, Rudolf

2014-01-01

Recent studies highlighted the potential role of cryptic glacial refugia for temperate taxa in Europe beyond the Mediterranean peninsulas. To further investigate phylogeographic features of the European pine marten (Martes martes) in previously identified cryptic refugia located in central-western

Der Fall Wal-Mart

OpenAIRE

Senge, Konstanze

2004-01-01

In dem Text werden Gründe für die gescheiterte Expansionsstrategie des weltgrößten Einzelhandelsunternehmens Wal-Mart nach Deutschland diskutiert. Differenziert werden vor allem 3 Fehlerquellen: So hat Wal-Mart die ökonomischen, politischen und kulturellen Besonderheiten in Deutschland nicht ausreichend beachtet. Zur Erklärung der Situation Wal-Marts in Deutschland wird das Modell des soziologischen Neo-Institutionalismus herangezogen, insbesondere wird auf die Konzepte Legitimität und Iso...

Spatio-temporal population genetics of the Danish pine marten (Martes martes)

DEFF Research Database (Denmark)

Pertoldi, Cino; Barker, Stuart F.; Madsen, Aksel Bo

2008-01-01

A spatio-temporal study of genetic variation in the Danish pine marten (Martes martes) populations from the Jutland peninsula and from the island of Sealand was performed using 11 microsatellite markers. Samples obtained from 1892 to 2003 were subdivided into historical (prior to 1970) and recent...

Açai Palm Fruit (Euterpe oleracea Mart.) Pulp Improves Survival of Flies on a High Fat Diet

OpenAIRE

Sun, Xiaoping; Seeberger, Jeanne; Alberico, Thomas; Wang, Chunxu; Wheeler, Charles T.; Schauss, Alexander G.; Zou, Sige

2010-01-01

Reducing oxidative damage is thought to be an effective aging intervention. Açai, a fruit indigenous to the Amazon, is rich in phytochemicals that possesses high anti-oxidant activities, and has anti-inflammatory, anti-cancer and anti-cardiovascular disease properties. However, little is known about its potential anti-aging properties especially at the organismal level. Here we evaluated the effect of açai pulp on modulating lifespan in Drosophila melanogaster. We found that açai supplementat...

Obtaining anthocyanin-rich extracts from frozen açai (Euterpe oleracea Mart. pulp using pressurized liquid extraction

Directory of Open Access Journals (Sweden)

Sylvia Carolina ALCÁZAR-ALAY

Full Text Available Abstract Açai is considered a functional food, and in addition to being a source of energy and fiber, it is a valuable source of bioactive compounds such as anthocyanins, minerals and fatty acids. In the present work, antioxidant-rich extracts from açai pulp were obtained using pressurized liquid extraction (PLE. The effects of the independent variables, including solvent type (pure ethanol and ethanol/water (50:50 v/v, citric acid (0 and 0.3%, w/w, pressure (20 and 80 bar and temperature (30 and 60 °C were evaluated using a full factorial design. The extraction was affected primarily by the solvent type and the citric acid percentage. The results indicate that the maximum overall yield (X0 was 64± 9 (%, d.b. when the process was performed using ethanol (99.5% and citric acid (0.3% w/w. The maximum total anthocyanin content and anthocyanin recovered from the raw material were 7 ± 1 (mg anthocyanin/g extract, d.b. and 11 ± 2 (%, d.b., respectively.

Does Wal-Mart Sell Inferior Goods?

OpenAIRE

Emek Basker

2008-01-01

I estimate the aggregate income elasticity of Wal-Mart's and Target's revenues using quarterly data for 1997-2006. I find that Wal-Mart's revenues increase during bad times, whereas Target's revenues decrease, consistent with Wal-Mart selling "inferior goods" in the technical sense of the term. An upper bound on the aggregate income elasticity of demand for Wal-Mart's wares is -0.5.

Kunstiga Eestimaad avastamas / Mart Helme

Index Scriptorium Estoniae

Helme, Mart, 1949-

2006-01-01

Kirjastuselt "Kunst" ilmunud uued raamatud: "Eestimaa. Looduse teejuht", tekst ja fotod Tiit Hunt; "Eestimaa. Linnuste teejuht", tekst Mart Helme; "Eestimaa. Kirikute teejuht", tekst Mart Helme, fotod Peeter Säre; "Eestimaa. Kultuurituristi teejuht", koostaja Tiiu Viirand; "Eestimaa. Ranniku teejuht", tekst Tiiu Viirand; "Eestimaa mõisate teejuht", fotod Peeter Säre, tekst Mart Helme, Alfred Wells

Pharmacognostical studies of Portulaca oleracea Linn

Directory of Open Access Journals (Sweden)

Bagepalli Srinivasa Ashok Kumar

Full Text Available Portulaca oleracea Linn, belongs to family Portulaceae and is a widely distributed weed. It has been used as a folk medicine in many countries as diuretics, febrifuge, antiseptic, antispasmodic and vermifuge. This paper deals with the microscopic study of leaf; stem and root of Portulaca oleracea, along with the physico-chemical and preliminary phytochemical analyses that were also studied.

Efeitos da pasteurização sobre características físico-químicas, microbiológicas e teor de antocianinas da polpa de juçaí (Euterpe edulis Martius

Directory of Open Access Journals (Sweden)

Érica Cristina Marins Barros

2015-07-01

Full Text Available A Juçara (Euterpe edulis Mart., é uma palmeira nativa do bioma da Mata Atlântica, sendo encontrada do Rio Grande do Sul até o sul da Bahia. Visando melhorar a conservação dos alimentos em diversos processos são utilizados métodos físicos e químicos de conservação. Este trabalho teve como objetivo o estudo dos efeitos do processamento térmico sobre a polpa de juçaí. O produto foi submetido ao processo de pasteurização em três diferentes temperaturas (72ºC, 80ºC e 88ºC durante 60 segundos. Foram realizadas análises físico-químicas, microbiológicas e determinação de antocianinas com o intuito de avaliar a influência do tratamento térmico nas propriedades e qualidade da polpa.

The implications of Wal-Mart's takeover of ASDA

OpenAIRE

Steve Burt; Leigh Sparks

2001-01-01

Wal-Mart is the world's largest retailer. Within the United Kingdom, retailing has generally been considered as a local or national activity. Wal-Mart's purchase of ASDA in 1999 illustrates the global scale of much modern retailing. In this paper we consider the implications of Wal-Mart's takeover of ASDA. First, the key drivers of Wal-Mart's business success are analysed. Second, the impact of Wal-Mart in Canada and Germany is considered. Third, the match of Wal-Mart with ASDA is examined. F...

Mart Habakuk viis esimese Eesti ettevõtte Londoni börsile / Mart Habakuk ; interv. Jaanika Merilo

Index Scriptorium Estoniae

Habakuk, Mart, 1969-

2007-01-01

Metro Capital Managementi juhatuse esimees Mart Habakuk tutvustab kinnisvarainvesteerimisfirma Metro Baltic Horizons noteerimist Londoni alternatiivnimekirja AIM. Lisa: Metro Capital Management; Mart Habakuk

Brassica oleracea: the dog of the plant world

Science.gov (United States)

The horticultural crop Brassica oleracea L. plays an important role in global food systems. Brassica oleracea is unique in that it has been domesticated into several morphotypes (cultivars), including broccoli, Brussels sprout, cabbage, cauliflower, kale, kohlrabi, and several lesser well known morp...

Brassica oleracea; The dog of the plant world

Science.gov (United States)

The horticultural crop Brassica oleracea L. plays an important role in global food systems. Brassica oleracea is unique in that it has been domesticated into several morphotypes (cultivars), including broccoli, Brussels sprout, cabbage, cauliflower, kale, kohlrabi, and several lesser well known morp...

Genetic analisys of a cross of gaillon (Brassica oleracea var. alboglabra) with cauliflower (B.oleracea var. botrytis)

OpenAIRE

Spini, Vanessa B.M.G.; Kerr, Warwick Estevam

2000-01-01

The cauliflower (Brassica oleracea var. botrytis) is an annual vegetable cultivated in Southern and Southwestern Brazil with limited production in the Northeast and Centralwest. A variety of Chinese kale, "kaai laan" or "gaillon" (Brassica oleracea var. alboglabra), produces seeds at high temperatures and therefore can do so in North and Northeastern Brazil. Gaillon and cauliflower were crossed 55 times using 10 gaillon plants as mothers and 4 cauliflower plants as pollen donors. From these c...

The hepato-protective effects of Portulaca oleracea L. extract: review.

Science.gov (United States)

Farkhondeh, Tahereh; Samarghandian, Saeed; Azimi-Nezhad, Mohsen; Hozeifi, Soroush

2018-03-30

Portulaca oleracea L. (Purslane) has been used in traditional medicine against hepatic injury, alt-hough its actual efficacy has not been fully understood. In addition, few studies have indicated that Portulaca oleracea L. possess protective effects against hepatotoxic agents. However, due to lack of information in human, more studies are needed to confirm the efficacy of Portulaca oleracea L. as a hepato-protective agent. The present study aimed to critically review the recent literature data from 1990 to 2017 regarding the hepato-protective effects of Portulaca oleracea L. and its underlying mechanisms. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

Red Cabbage (Brassica oleracea Ameliorates Diabetic Nephropathy in Rats

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Hazem A. H. Kataya

2008-01-01

Full Text Available The protective action against oxidative stress of red cabbage (Brassica oleracea extract was investigated. Diabetes was induced in male Wistar rats using streptozotocin (60 mg/kg body weight. Throughout the experimental period (60 days, diabetic rats exhibited many symptoms including loss of body weight, hyperglycemia, polyuria, polydipsia, renal enlargement and renal dysfunction. Significant increase in malondialdehyde, a lipid peroxidation marker, was observed in diabetic kidney. This was accompanied by a significant increase in reduced glutathione and superoxide dismutase activity and a decrease in catalase activity and in the total antioxidant capacity of the kidneys. Daily oral ingestion (1 g/kg body weight of B. oleracea extract for 60 days reversed the adverse effect of diabetes in rats. B. oleracea extract lowered blood glucose levels and restored renal function and body weight loss. In addition, B. oleracea extract attenuated the adverse effect of diabetes on malondialdehyde, glutathione and superoxide dismutase activity as well as catalase activity and total antioxidant capacity of diabetic kidneys. In conclusion, the antioxidant and antihyperglycemic properties of B. oleracea extract may offer a potential therapeutic source for the treatment of diabetes.

Aasta Põllumeheks kuulutati Timmi Mart

Index Scriptorium Estoniae

2009-01-01

22. oktoobril 2009 Toompeal Riigikogu hoones toimunud konverentsil kuulutati Aasta Põllumeheks 2009 Jaagumäe talu peremees Mart Timmi Võrumaalt Navi külast. President Toomas Hendrik Ilves andis Mart Timmile koos aasta põllumehe tiitliga üle Ferdi Sannamehe skulptuuri "Külvaja" vähendatud koopia

Comportamento térmico e caracterização morfológica das fibras de mesocarpo e caroço do açaí (Euterpe oleracea Mart. Thermogravimetric evaluation of açaí fruit (Euterpe oleracea Mart. agro industry waste

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Maria Alice Martins

2009-12-01

Full Text Available A agroindústria do açaí gera uma grande quantidade de resíduos, constituída de caroços e fibras, o que é um grave problema ambiental e de saúde pública. O objetivo deste estudo foi estudar as fibras do mesocarpo e o caroço do fruto do açaí para sua utilização em materiais compósitos. As amostras foram caracterizadas usando análise por termogravimetria (TG/DTG em atmosferas inerte e oxidativa, microscopia eletrônica de varredura e microscopia óptica. As fibras apresentaram boa estabilidade térmica até 230 ºC e um processo de degradação em atmosfera inerte em três etapas. Em atmosfera oxidativa, as fibras apresentaram menor estabilidade térmica e uma mudança no processo de degradação de três para quatro etapas. os resultados da análise térmica do caroço mostraram um comportamento térmico similar ao da fibra. A microscopia mostrou que as fibras presentes no fruto do açaí recobrem o caroço e possuem morfologia irregular com a presença de células do parênquima na sua superfície. O comportamento térmico das fibras do açaí é semelhante ao de outras fibras vegetais já utilizadas industrialmente na área de compósitos poliméricos, o que abre novas e promissoras áreas para sua utilização.The açaí fruit agro industry produces a large amount of waste, mainly seeds and fibers, which is a serious environmental and public health problem. The aim of this work is to study the mesocarp fibers and the açaí fruit seed to use in composite materials. The samples have been characterized by using thermogravimetric analysis (TGA/DTG in inert and thermo-oxidative atmospheres, scanning electron and optical microscopy. The fibers have shown good stability until 230ºC and a threedegradation step process in inert atmosphere. In oxidative atmosphere, the fibers presented a decrease in thermal stability and a change in the decomposition process from three to four steps. For the seeds, a similar behavior was observed, although a lower thermal stability was observed when compared to the fiber. Longitudinal morphology of the fibers that cover the açaí seed is rough, and parenchyma cells can be seen on the surface. The açaí fibers exhibited a thermal behavior comparable to other natural fibers used in composites, which is promising for new applications.

Separation and Identification of Four New Compounds with Antibacterial Activity from Portulaca oleracea L.

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Xia Lei

2015-09-01

Full Text Available The Portulaca oleracea L. (P. oleracea has been used to treat bacillary dysentery for thousands of years in China. Pharmacology studies on P. oleracea have also showed its significant antibacterial effects on the enteropathogenic bacteria, which might reveal the treatment of P. oleracea in cases of bacillary dysentery to some extent. To date, however, the therapeutic basis of P. oleracea treating on bacillary dysentery remains unknown. We determined the antibacterial effective fraction of P. oleracea in a previous study. The current study, which is based on our previous study, was first designed to isolate, identify and screen antibacterial active constituents from P. oleracea. As a result, four new compounds (1–4, portulacerebroside B (1, portulacerebroside C (2, portulacerebroside D (3 and portulaceramide A (4 along with five known compounds (5–9 were isolated, and structures were established by their physico-chemical constants and spectroscopic analysis. The antibacterial activities against common enteropathogenic bacteria were evaluated for all compounds and the new compounds 1–4 showed significant antibacterial effect on enteropathogenic bacteria in vitro, which might contribute to revealing the treatment of P. oleracea in cases of bacillary dysentery.

Separation and Identification of Four New Compounds with Antibacterial Activity from Portulaca oleracea L.

Science.gov (United States)

Lei, Xia; Li, Jianmin; Liu, Bin; Zhang, Ning; Liu, Haiyang

2015-09-10

The Portulaca oleracea L. (P. oleracea) has been used to treat bacillary dysentery for thousands of years in China. Pharmacology studies on P. oleracea have also showed its significant antibacterial effects on the enteropathogenic bacteria, which might reveal the treatment of P. oleracea in cases of bacillary dysentery to some extent. To date, however, the therapeutic basis of P. oleracea treating on bacillary dysentery remains unknown. We determined the antibacterial effective fraction of P. oleracea in a previous study. The current study, which is based on our previous study, was first designed to isolate, identify and screen antibacterial active constituents from P. oleracea. As a result, four new compounds (1-4), portulacerebroside B (1), portulacerebroside C (2), portulacerebroside D (3) and portulaceramide A (4) along with five known compounds (5-9) were isolated, and structures were established by their physico-chemical constants and spectroscopic analysis. The antibacterial activities against common enteropathogenic bacteria were evaluated for all compounds and the new compounds 1-4 showed significant antibacterial effect on enteropathogenic bacteria in vitro, which might contribute to revealing the treatment of P. oleracea in cases of bacillary dysentery.

[Studies on the chemical constituents of Portulaca oleracea].

Science.gov (United States)

Liu, Ce-jia; Liu, Dian-yu; Xiang, Lan; Zhou, Wen; Shao, Ning-ning

2009-11-01

To study the chemical constituents of Portulaca oleracea. The constituents were isolated by column chromatography and identified on the basis of physicochemical and spectral data. Five compounds were isolated from 70% ethanol extract of this plant and their structures were elucidated as cyclo (Phe-Ile) (1), cycle (Tyr-Ala) (2), adenine (3), friedelin (4) and isoselachoceric acid (5). Compounds 1-5 are isolated from Portulaca oleracea for the first time.

Allometric Equations for Estimating Biomass of Euterpe precatoria, the Most Abundant Palm Species in the Amazon

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Fernando Da Silva

2015-02-01

Full Text Available Allometric models to estimate biomass components such as stem mass Ms, foliage mass Ml, root mass Mr and aboveground mass Ma, were developed for the palm species Euterpe precatoria Mart., which is the most abundant tree species in the Amazon. We harvested twenty palms including above- and below-ground parts in an old growth Amazonian forest in Brazil. The diameter at breast height D ranged from 3.9–12.7 cm, and the stem height H ranged from 2.3–16.4 m. The D, diameter at ground basis D0, crown diameter CD, H, stem specific gravity ρ, and number of fronds Nf were considered as independent variables and incorporated into a power function model. The best predictors were D2Hρ for Ms and Ma, D2HNf for Ml, and D for Mr. Slender index (H/D ranged from 0.56–1.46 m·cm−1, and the D-H relationship suggested that the stem shape becomes more slender with increasing D. On the other hand, ρ increased with D implying a stiffening of stem tissue. The average root/shoot ratio was estimated as 0.29 which was higher than that reported for the non-palm tree species in the Amazon. Comparisons of several models to estimate Ma of different palm species, suggested that the variations of the D-H relationship and ρ should be considered to develop allometric models for estimating biomass in palm species. In particular the ρ largely varied depending on individual size, which should be important to consider, when developing the allometric models for palms.

A REVIEW ON PHYTOCHEMICAL AND PHARMACOLOGICAL PROFILE OF PORTULACA OLERACEA LINN. (PURSLANE

OpenAIRE

Cherukuri Vidyullatha Chowdhary; Anusha Meruva; Naresh K; Ranjith Kumar A. Elumalai

2013-01-01

Portulaca oleracea belongs to the family of Portulacaceae in the traditional system of medicine and consists of large number of various medicinal and pharmacological importances hence represents a priceless tank of new bioactive molecules. Portulaca oleracea consists of number of pharmacological activities like antimicrobial, antioxidant, antidiabetic, neuronal, antinociceptive and anti-inflammatory activity. This review helps to create an interest in Portulaca oleracea in developing new form...

Kõrge majandusauhind Mart Laarile / Martin Hanson

Index Scriptorium Estoniae

Hanson, Martin, 1984-

2006-01-01

Cato instituut premeeris Mart Laari majandusteadlase Milton Friedmani nimelise auhinnaga ja üle 6 miljoni krooniga. Vt. samas: Mart Laari varasemad autasud; Milton Friedmani auhind anti kätte kolmandat korda. Kommenteerivad: Ivari Padar, Tiit Vähi, Tiit Tammsaar, Linnar Viik ja Andres Lipstok

Notes on winter feeding habits of the pine marten Martes martes L. in Val Gressoney (Western Italian Alps

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Paolo Agnelli

1995-12-01

Full Text Available Abstract A first report on the feeding habits of a mainland population of the pine marten (Martes martes in Italy is presented here. The winter food of this carnivore in Western Alps (altitude 1800-2500 m a.s.1. is described, using stomach analysis. Both volume and frequency of occurrence of different food items were quantified. Mammals and wild fruits represent the main food categories. The presence of the small mammal species in the diet is discussed. Riassunto Note sulla dieta invernale della martora Martes Martes L. in Val Gressoney (Alpi occidentali italiane - Le abitudini alimentari della martora (Martes martes nell'Italia peninsulare vengono descritte per la prima volta sulla base del contenuto stomacale di 9 esemplari provenienti dalle Alpi occidentali (fascia altitudinale compresa tra i 1800 e 2500 m s.1.m.. I dati raccolti si riferiscono a1 periodo invernale e sono stati espressi come frequenza percentuale e volume percentuale stimato. I mammiferi e i frutti selvatici costituiscono le principali categorie alimentari. La presenza delle specie di micromammiferi rinvenuti viene discussa.

A review of traditional uses, phytochemistry and pharmacology of Portulaca oleracea L.

Science.gov (United States)

Iranshahy, Milad; Javadi, Behjat; Iranshahi, Mehrdad; Jahanbakhsh, Seyedeh Pardis; Mahyari, Saman; Hassani, Faezeh Vahdati; Karimi, Gholamreza

2017-06-09

Portulaca oleracea L. is a widespread medicinal plant that is used not only as an edible plant, but also as a traditional medicine for alleviating a wide spectrum of diseases. It is a well-known plant in the European Traditional Medicine. PA is mentioned by Dioscorides (40-90 CE), with the name of "andrachne". In this study, we provide detailed information on botany, traditional uses, phytochemistry, pharmacological uses, pharmacokinetics and safety of P. oleracea. An extensive search on electronic databases including PubMed, Web of Science, Google Scholar, ScienceDirect, Scopus, conference papers, local herbal encyclopedias, articles, books (in English, French, Arabic, Persian, etc.) and also a number of unpublished handwritten manuscripts was done to find articles have been published between 1956 and 2015 on pharmacology and phytochemistry of P. oleracea. P. oleracea has been addressed in De Materia Medica as an astringent, and a remedy for headaches, inflammation of the eyes and other organs, burning of the stomach, erysipela, disorders of the bladder, numbness of the teeth, excessive sexual desire, burning fevers, worms, dysentery, hemorrhoids, eruptions of blood, and bites. Phytochemical investigations revealed that this plant a wide range of secondary metabolites including alkaloids, terpenoids, flavonoids and organic acids. The most important pharmacological activities are renoprotective activities and effects on metabolism. P. oleracea could successfully decrease blood glucose and lipid profile of patients with metabolic syndrome. The safety of P. oleracea has been reported in many clinical trials. Modern pharmacological studies have now proven many traditional uses of P. oleracea, including anti-hyperglycemic and anti-hyperlipidemic, renoprotective and hepatoprotective effects. In addition, in many clinical trials P. oleracea showed no adverse effects and constipation was reported as the most frequent adverse effect. Copyright © 2017 Elsevier Ireland Ltd

Herbicide effects on cuticle ultrastructure in Eleusine indica and Portulaca oleracea.

Science.gov (United States)

Malpassi, Rosana N

2006-04-01

Eleusine indica and Portulaca oleracea are two common weeds in peanut crops in southern Córdoba. Two chemicals are frequently used to control them, quizalofop for grasses and lactofen for dicots. The objective is to study the effects of quizalofop and lactofen on cuticle ultrastructure in E. indica and P. oleracea, respectively. In the lab, quizalofop was applied on E. indica and lactofen on P. oleracea. Three plant categories were analyzed in each species: 3, 1-2, and no tiller in E. indica, and 8, 6, and 2 nomophylls in P. oleracea. Leaf samples from both species were collected at 7 and 16 days post-application and were treated for scanning electron microscopy. E. indica cuticle treated with lethal dose shows areas where epicuticular waxes disappear, specially in the youngest individuals. These areas are located predominantly on periclinal walls of typical epidermic cells and subsidiary cells. On the other hand, P. oleracea shows cuticle discontinuities that may be caused by lactofen entry. They are smaller and less frequent in plants having 8 or more nomophylls. The remaining waxes act as a herbicide accumulation compartment and, therefore, would partially prevent the active ingredient entry to epidermic cells.

Vælgerskredet i marts historisk stort

DEFF Research Database (Denmark)

Thomsen, Søren Risbjerg

2008-01-01

NYHED: Marts 2008 var vælgermæssigt blandt de ti mest stormfulde måneder i dansk politik siden januar 1990, viser valgforskers tal.......NYHED: Marts 2008 var vælgermæssigt blandt de ti mest stormfulde måneder i dansk politik siden januar 1990, viser valgforskers tal....

Riigikogu palk külma! / Mart Laar

Index Scriptorium Estoniae

Laar, Mart, 1960-

2008-01-01

Parlamendiliikme sõnul kavatsetakse 2007. aasta lõpu tasemel külmutada Riigikogu liikmete, ministrite, presidendi, eurosaadikute, õiguskantsleri, riigikontrolöri ja teiste kõrgemate ametiisikute palk. Artikkel pärineb Mart Laari veebipäevikust http://blog.irl.ee/Mart_Laar/

Marte Meo Metode som magtteknologi

DEFF Research Database (Denmark)

Sørensen, Nelli Øvre

2015-01-01

Pårørendeskole til pårørende for at forbedre kommunikation og samvær med familiemedlemmer med demens. Ægtefæller fortalte, at de oplevede at skulle påtage sig større ansvar, end de allerede havde, og at de gjorde modstand mod undervisernes formidlingsmåde og fortolkning af Marte Meo, der blev......, at der mellem undervisere og pårørende foregår et biopolitisk magtspil, med intentioner om at de pårørende tilføres ressourcer ved at lære Marte Meo metoden, men at den får funktion af selvteknologiske redskaber i 'subjektiverings processer', hvor de pårørende ledes mod at tage øget ansvar for eget og...... for ægtefællens liv og for hjemmehjælperes brug af Marte Meo metode- og sprog....

Búsqueda de vida en Marte

Directory of Open Access Journals (Sweden)

Rafael Navarro-González

2005-01-01

Full Text Available La misión astrobiológica más importante que se ha realizado hasta la fecha ha sido sin duda el proyecto Vikingo de la NASA. Esta misión consistió en tres experimentos biológicos especialmente diseñados para la búsqueda de indicadores de vida en las capas superficiales del suelo marciano. Los tres experimentos dieron resultados positivos. Sin embargo, el análisis de materia orgánica en el suelo marciano demostró la ausencia total de carbono orgánico. Este hallazgo fue utilizado como uno de los argumentos más sólidos en contra de la existencia de vida en la superficie del planeta Marte. Como preparación para futuras misiones a Marte en búsqueda de vida es necesario probar los instrumentos en localidades terrestres que pudieran ser ambientes análogos a Marte. Uno de los desiertos más áridos del planeta es el de Atacama, en el norte de Chile. Estudios químicos y microbiológicos del suelo de Atacama sugieren que el corazón del desierto es en realidad un buen análogo de Marte, ya que no posee vida macroscópica y microscópica, tiene niveles muy bajos de materia orgánica, y sus suelos son muy reactivos. En colaboración con científicos franceses y estadounidenses, estamos preparando una misión robótica dirigida por la NASA para la búsqueda de vida pasada o presente en Marte por lo que el Desierto de Atacama en Chile es el escenario para la preparación de esta misión espacial.

Portulaca oleracea extracts protect human keratinocytes and fibroblasts from UV-induced apoptosis.

Science.gov (United States)

Lee, Suyeon; Kim, Ki Ho; Park, Changhoon; Lee, Jong-Suk; Kim, Young Heui

2014-10-01

Portulaca oleracea extracts, known as Ma Chi Hyun in the traditional Korean medicine, show a variety of biomedical efficacies including those in anti-inflammation and anti-allergy. In this study, we investigate the protective activity of the P. oleracea extracts against UVB-induced damage in human epithelial keratinocytes and fibroblasts by several apoptosis-related tests. The results suggest that P. oleracea extracts have protective effects from UVB-induced apoptosis. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

Qualidade fisiológica e armazenamento de sementes de ipê-verde (Cybistax antisyphilitica (Mart.) Mart.)

OpenAIRE

Melo, Paulo Régis Bandeira de [UNESP

2009-01-01

Cybistax antisyphilitica (Mart.) Mart. is a Brazilian native tree species, with medicinal properties, belonging family Bignoniaceae and often found in Cerrado biome. Can be used in project with objective for heterogeneous florestation directed to the recomposition of degraded areas, permanent preservation area or ornamental purposes. This study was carried out to evaluate conditions to the germination standard test, verify the possibility the use the electrical conductivity and accelerated ag...

Utilization of Portulaca Oleracea L. to Improve Quality of Yoghurt

International Nuclear Information System (INIS)

Sallam, E.M.; Anwar, M.M.

2015-01-01

The present investigation was conducted to study the possibility of using Portulaca Oleracea L. as a source of Omega - 3 and Omega - 6 fatty acids as well as high vitamins and minerals, to improve the quality of yoghurt. Also, the microbial characteristics the treated yoghurt were evaluated. The obtained results showed that the replacement of milk fat by dry leaves of P. Oleracea had no effect on the chemical composition and the sensory properties of the treated yoghurt with 50 and 100% P. Oleracea L. leaves oil as milk fat substitute compared to the untreated one. In conclusion, manufacturing yoghurt is suitable as a rich nutrient food stuff for people suffering from blood hypertension, high blood cholesterol, liver and heart diseases

Presencia de José Martí en la WEB. Parte 1, Martí como autor en Google Académico

OpenAIRE

González Alonso, Jorge; Pérez González, Yudeisy

2015-01-01

From searching the works of José Martí in Google Scholar and the use of tools such as Publish or Perish, bibliometric indicators could be determined as the h index that shows the impact of Marti's work. The high values of h that achieves José Martí as author, would place him as a leading researcher currently, with a remarkable impact on Social Sciences. It was determined the Works of José Martí most cited, among which is in the first place “Nuestra America”, which is demonstrated both by the...

AQS Data Mart

Data.gov (United States)

U.S. Environmental Protection Agency — The AQS Data Mart is a database that contains all of the information from the AQS system. It is a storehouse of air quality information that allows users to make...

Hypoglycemic and pancreatic protective effects of Portulaca oleracea extract in alloxan induced diabetic rats.

Science.gov (United States)

Ramadan, Basma K; Schaalan, Mona F; Tolba, Amina M

2017-01-11

Diabetes is a major public health concern. In spite of continuous new drug development to treat diabetes, herbal remedies remain a potential adjunct therapy to maintain better glycemic control while also imparting few side-effects. Portulaca oleracea has been traditionally used to manage several diseases due to the anti-oxidant and anti-atherogenic effects it imparts. To better understand the mechanisms associated with potential protective effect of P. oleracea extract against diabetes, alloxan-induced diabetic rats were used in this study. Forty Wistar rats (male, 7-8-wk-old, 140-160 g) were divided into four groups (n = 10/group): Group I (control), Group II (P. oleracea-treated; gavaged with P. oleracea extract daily [at 250 mg/kg] for 4 weeks), Group III (diabetic control; daily IP injection of alloxan [at 75 mg/kg] for 5 days) and Group IV (P. oleracea-pre-treated diabetic; gavaged with P. oleracea extract daily [at 250 mg/kg] for 4 weeks and then daily IP injection of alloxan [at 75 mg/kg] for 5 days). Body weight, food consumption, blood (serum) levels of glucose, C peptide, Hb A1C, insulin, tumor necrosis factor (TNF)-α and interleukin (IL)-6 were determined for all groups. The results indicated that while Hb A1C, serum levels of glucose, TNF-α and IL-6 were all significantly decreased in the P. oleracea-pre-treated diabetic rats, these hosts also had significant increases in C peptide and insulin compared to levels in the counterpart diabetic rats. These results were confirmed by the histopathological assessments which showed marked improvement of the destructive effect on pancreatic islet cells induced by alloxan. P. oleracea extract is a general tissue protective and regeneartive agent, as evidenced by increasing β-cell mass and therefore improved the glucose metabolism. Thus, stimulation of Portulaca oleracea signaling in β- cells may be a novel therapeutic strategy for diabetes prevention.

2009. aasta eelarvest 2010. aastasse vaadates / Mart Laar

Index Scriptorium Estoniae

Laar, Mart, 1960-

2008-01-01

Erakonna Isamaa ja Res Publica Liit esimees avalikustab 2009.aasta eelarve arutelul välja käidud ettepanekud ja teavitab arutelu tulemused. Tekst pärineb Mart Laari blogist http://blog.irl.ee/Mart_ Laar/

Portulaca oleracea L.: a review of phytochemistry and pharmacological effects.

Science.gov (United States)

Zhou, Yan-Xi; Xin, Hai-Liang; Rahman, Khalid; Wang, Su-Juan; Peng, Cheng; Zhang, Hong

2015-01-01

Portulaca oleracea L., belonging to the Portulacaceae family, is commonly known as purslane in English and Ma-Chi-Xian in Chinese. It is a warm-climate, herbaceous succulent annual plant with a cosmopolitan distribution. It is eaten extensively as a potherb and added in soups and salads around the Mediterranean and tropical Asian countries and has been used as a folk medicine in many countries. Diverse compounds have been isolated from Portulaca oleracea, such as flavonoids, alkaloids, polysaccharides, fatty acids, terpenoids, sterols, proteins vitamins and minerals. Portulaca oleracea possesses a wide spectrum of pharmacological properties such as neuroprotective, antimicrobial, antidiabetic, antioxidant, anti-inflammatory, antiulcerogenic, and anticancer activities. However, few molecular mechanisms of action are known. This review provides a summary of phytochemistry and pharmacological effects of this plant.

POST-ACIDIFICATION AND EVALUATION OF ANTHOCYANINS STABILITY AND ANTIOXIDAN ACTIVITY IN AÇAI FERMENTED MILK AND YOGURTS (Euterpe oleracea Mart.

Directory of Open Access Journals (Sweden)

DANIELA CAVALCANTE DOS SANTOS CAMPOS

2017-12-01

Full Text Available ABSTRACT This study evaluated the post-acidification, stability of anthocyanins and antioxidant activity in açai yogurts and fermented milks for 28 days of cold storage. For the determination of post-acidification and stability of the functional properties of açai yogurt (IA and fermented milks (LFA, products stored at 4°C were evaluated on day 0 and every 7 days for pH, titratable acidity in lactic acid, instrumental color, anthocyanins and antioxidant activity by the DPPH free radical method. Acidification of both food matrixes was more evident between days 0 and 7 of evaluation. IA presented reduction in parameter L *, while chromaticity a * and b * of IA and LFA increased as the Açai pulp content increased; however, considering the evaluation period, it was found increase in L * and b * relating to anthocyanin degradation. Anthocyanins, as well as the antioxidant activity of IA and LFA, showed an increase in their values as the pulp content increased, but their concentrations reduced at the end of the storage period. IA and LFA can be considered excellent sources of antioxidants, being alternative to individuals not used to the consumption of fruits and vegetables.

Millest kõneleb koreograaf Mart Kangro? / Heili Lindepuu

Index Scriptorium Estoniae

Lindepuu, Heili

2011-01-01

Festivali POT raames 5. ja 6. mail Kanuti Gildi saalis taasetendunud Mart Kangro soololavastusest "Start. Based on a True Story". 27. mail Kalevi Spordihallis esietenduvast Mart Kangro lavastusest "Open Tallinn", kus on ühendatud teater, reality show ja multimeedia

A non-invasive genetic survey of the Pine marten (Martes martes in the western river Po plain (italy: preliminary results

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Alessandro Balestrieri

2008-07-01

Full Text Available Abstract Riassunto Monitoraggio genetico non invasivo della martora (Martes martes nella pianura padana occidentale: risultati preliminari. Tra il 2003 e il 2004, due esemplari di martora (Martes martes sono stati investiti da automezzi sulla sponda sinistra del fiume Po (R. N. Garzaia di Valenza, Piemonte. Per accertare la presenza stabile della specie nella Riserva e lungo il tratto vercellese-alessandrino del Parco fluviale del Po, è stato applicato un metodo PCR-RFLP per l’analisi di mtDNA di origine fecale. A partire da gennaio 2007, sono state raccolte 212 feci attribuibili al genere Martes in base a forma e dimensioni. L’analisi di un campione di 117 feci (55% ha permesso di identificare 10 feci di martora e 15 di faina (M. foina, confermando la presenza della martora nella Riserva e accertandola per la prima volta in un’area collinare in sponda destra del Po (Camino, AL, circa 32 km a monte della Riserva. Resta da valutare se la scarsa resa dell’amplificazione del DNA (21,4% sia dovuta alla degradazione del materiale genetico o ad un numero elevato di feci di volpe (Vulpes vulpes erroneamente attribuite a Martes durante la fase di raccolta.

Der Fall Wal-Mart : institutionelle Grenzen ökonomischer Globalisierung

OpenAIRE

Senge, Konstanze

2004-01-01

"In dem Text werden Gründe für die gescheiterte Expansionsstrategie des weltgrößten Einzelhandelsunternehmens Wal-Mart nach Deutschland diskutiert. Differenziert werden vor allem drei Fehlerquellen: So hat Wal-Mart die ökonomischen, politischen und kulturellen Besonderheiten in Deutschland nicht ausreichend beachtet. Zur Erklärung der Situation Wal-Marts in Deutschland wird das Modell des soziologischen Neo-Institutionalismus herangezogen, insbesondere wird auf die Konzepte 'Legitimität' und ...

Näljane Wal-Mart tahab ka smiley alla kugistada / Erik Aru

Index Scriptorium Estoniae

Aru, Erik

2006-01-01

USA jaekaubanduskett Wal-Mart tahab oma kaubamärgina registreerida smiley' - kollase naerunäo kujutise. Smiley' leiutajaks peab end Suurbritannias asuva ühemehefirma SmileyWorld omanik Franklin Loufrani. Lisa: Wal-Mart üritab jõukamaid kundesid meelitada. Tabel: Wal-Mart

Mart Sander ja Julie Hagen-Schwarz / Ants Juske

Index Scriptorium Estoniae

Juske, Ants, 1956-2016

2009-01-01

Mart Sanderi galerii "Galerii" (Sakala 18, Tallinn) avanäitusest. Eksponeeritud baltisaksa naiskunstniku Julie Wilhelmine Hagen-Schwarzi maalid, mis on pärit erakogudest. Väljas on ka Mart Sanderi tehtud koopia Julie Hagen-Schwarzi autoportreest (1855). Julie Hagen-Schwarzist ja tema loomingust

Mart Laar dilemma köidikus / Abdul Turay

Index Scriptorium Estoniae

Turay, Abdul, 1967-

2009-01-01

Autor imetleb Isamaa ja Res Publica Liidu esimeest Mart Laari ning märgib, et kaks monetarismi koolkonda, mida ta toetab, asuvad nüüd diametraalselt vastupidistel seisukohtadel ja Mart Laar peaks nüüd valima, keda ta edaspidi toetab

Database derived microsatellite markers (SSRs) for cultivar differentiation in Brassica oleracea

DEFF Research Database (Denmark)

Louarn, Sébastien Jean Yves; Torp, Anna Maria; Holme, I.B.

2007-01-01

 Fifty-nine Brassica oleracea cultivars, belonging to five botanical varieties, were evaluated for microsatellite (SSR) polymorphisms using 11 database sequence derived primer pairs. The cultivars represented 12 broccoli (Brassica oleracea var. italica), ten Brussels sprouts (B. o. var. gemmifera...

Protective Effect of Aqueous and Ethanolic Extracts of Portulaca Oleracea Against Cisplatin Induced Nephrotoxicity

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Gholamreza Karimi

2010-04-01

Full Text Available Objective(sPortulaca oleracea L. is a herbaceous weed from portulacaceae family. It can be found in many parts of the world. Modern pharmacological studies have demonstrated that P. oleracea have antioxidant effects. The protective effect of aqueous and ethanolic extract of P. oleracea against cisplatin-induced renal toxicity was studied in rats.Materials and MethodsSingle intraperitoneal injection of 4 mg/kg cisplatin was administrated to rats. After 5 days, blood urea nitrogen (BUN and serum creatinine (Scr concentration were determined. Effect of aqueous and ethanolic extracts, before and after cisplatin injection on BUN and Scr, as well as morphological renal damage, was evaluated. ResultsIt was indicated that treatment with aqueous and ethanolic extracts of P. oleracea in the highest dose (0.8 and 2 g/ kg, 6 and 12 hr before cisplatin injection reduced BUN and Scr. Tubular necrotic damage was not observed either. ConclusionResults suggest that P. oleracea extract may protect against cisplatin-induced renal toxicity and might serve as a novel combination agent with cisplan to limit renal injury.

Mart Laar : impeeriumi enesepettus

Index Scriptorium Estoniae

2007-01-01

Parlamendiliige Mart Laar kirjutab USA mõjukas päevalehes The Wall Street Journal, et naftadollarite toel ja lääneriikide leeris valitseva korratuse tingimustes loodab Venemaa taastada oma kadunud impeeriumi

Portulaca oleracea Linn seed extract ameliorates hydrogen ...

African Journals Online (AJOL)

Portulaca oleracea Linn seed extract ameliorates hydrogen ... induced cell death by inhibiting oxidative stress and ROS generation. Keywords: ... culture medium; therefore the stock solutions of ... acetic acid (1 %) and ethanol (50 %) to extract.

The participation of singlet oxygen in a photocitotoxicity of extract from amazon plant to cancer cells

Science.gov (United States)

Tcibulnikova, Anna V.; Degterev, Igor A.; Bryukhanov, Valery V.; Roberto, Mantuanelly M.; Campos Pereira, F. D.; Marin-Morales, M. A.; Slezhkin, Vasily A.; Samusev, Ilya G.

2018-01-01

We have been searching for new photosensitizers (PS) for photodynamic therapy (PDT) of cancer based on extracts from Amazonian plants since 2009. In this paper, we demonstrate that, under certain conditions, the extract from fruits of the Amazonian palm Euterpe oleraceae (popular name Açaí) can serve as a PS for PDT treatment of murine breast cancer cells (4T1 cell line). We have been first to show directly that the photodynamic effect of plant PS is due to singlet oxygen.

Detoxification of microcystin-LR in water by Portulaca oleracea cv.

Science.gov (United States)

Isobe, Takatoshi; Okuhata, Hiroshi; Miyasaka, Hitoshi; Jeon, Bong-Seok; Park, Ho-Dong

2014-03-01

Microcystin-LR (0.02 μg/ml) in the hydroculture medium of Portulaca oleracea cv., became below the detection level (<0.0001 μg/ml) by HPLC analysis after 7 days. The toxicity of microcystin estimated with protein phosphatase inhibition assay, however, remained at 37% of the initial level, indicating that microcystin-LR was transformed by P. oleracea cv. into unknown compound(s) of lower toxicity. Copyright © 2013 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.

Numerical and structural chromosome aberrations in cauliflower (Brassica oleracea var. botrytis) and Arabidopsis thaliana

NARCIS (Netherlands)

Ji, X.

2014-01-01

Numerical and structural chromosome aberrations in cauliflower (Brassica oleracea var. botrytis) and Arabidopsis thaliana.

I studied numerical and structural chromosome aberrations in cauliflower (Brassica oleracea var. botrytis) and

CULTURA IN VITRO DE EMBRIÕES ZIGÓTICOS DE AÇAIZEIRO IN VITRO CULTURE OF ASSAI PALM ZYGOTIC EMBRYOS

Directory of Open Access Journals (Sweden)

ANA DA SILVA LEDO

2001-12-01

Full Text Available Este trabalho teve como objetivo estabelecer o protocolo para a produção de plântulas in vitro a partir da conversão de embriões zigóticos de açaizeiro (Euterpe oleracea Mart.. Os embriões zigóticos maduros foram excisados sob condições assépticas, a partir de sementes obtidas de frutos maduros, e cultivados em tubos de ensaio com 10 mL de meio MS modificado pela presença de 0,17 g.L-1 de NaH2PO4, com 0,6 % de ágar, 0,25 % de carvão ativado e 3 % de sacarose. Foram testadas diferentes combinações de ANA (0,54; 2,68 e 5,37 miM e BAP (0,44; 1,11; 1,55 e 2,22 miM e uma testemunha adicional. Em média, os tratamentos constituídos da combinação de ANA e BAP foram superiores à testemunha para todas as variáveis avaliadas. As concentrações de 0,54 e 2,68 miM de ANA promoveram, em média, maior formação de plântulas normais quando comparado com 5,37 miM de ANA. O maior comprimento da parte aérea foi induzido pela presença de 2,68 miM de ANA combinado com 1,11; 1,55 e 2,22 miM de BAP. Não foram verificadas diferenças significativas entre as concentrações de ANA e BAP para a percentagem de conversão de embriões e número de raízes por plântulaThis work had as objective to establish protocol for the production of seedlings in vitro from of the conversion of assai palm zygotic embryos (Euterpe oleracea Mart.. The mature zygotic embryos obtained of seeds of mature fruits were excised under aseptic conditions, and cultivated in rehearsal tubes with 10 mL of a MS medium modified by the presence of 0,17 g.L-1 of NaH2PO4, with agar 0,6%, 0,25% activated charcoal and 3% sucrose. Different combinations of NAA were tested (0,54; 2,68 and 5,37 muM and BAP (0,44; 1,11; 1,55 and 2,22 muM and a treatment without growth regulator. On the average, the constituted treatments of ANA and BAP were superiors the to a treatment without growth regulator to all the parameters. The concentrations of 0,54 and 2,68 muM of NAA promoted, on the

Burnout / Mart Jürisoo

Index Scriptorium Estoniae

Jürisoo, Mart, 1950-2014

2004-01-01

Rootsi eestlase Mart Jürisoo peagi eestikeelsena ilmuva raamatu "Burnout - miks juhid läbi põlevad?" põhjal kokkuvõtlikult läbipõlemisest, ühiskondlikest nähtustest, mis sellele kaasa aitavad ning sellest hoidumise võimalustest

Desenvolvimento de nÃctares mistos à base de caju (Anacardium occidentale L) e aÃaà (Euterpe oleracea Mart.)

OpenAIRE

Analia Maria Pinheiro

2008-01-01

O setor que vem crescendo nos Ãltimos anos à o de bebidas. Em todos os paÃses os levantamentos estatÃsticos revelam nÃmeros crescentes de consumo, tanto per capita quanto global. Esses valores sÃo mais expressivos quando se refere a bebidas obtidas de frutas, pelo fato das mesmas se constituÃrem fontes importantes de vitaminas e minerais para a dieta humana, alÃm de seus atrativos sabores. O Norte e Nordeste do Brasil, por exemplo, sÃo regiÃes privilegiadas neste particular. Portanto, pode-se...

Euterpe oleracea Mart.-Derived Polyphenols Protect Mice from Diet-Induced Obesity and Fatty Liver by Regulating Hepatic Lipogenesis and Cholesterol Excretion.

Science.gov (United States)

de Oliveira, Paola Raquel B; da Costa, Cristiane A; de Bem, Graziele F; Cordeiro, Viviane S C; Santos, Izabelle B; de Carvalho, Lenize C R M; da Conceição, Ellen Paula S; Lisboa, Patrícia Cristina; Ognibene, Dayane T; Sousa, Pergentino José C; Martins, Gabriel R; da Silva, Antônio Jorge R; de Moura, Roberto S; Resende, Angela C

2015-01-01

The aim of this study was to investigate the effect of a polyphenol-rich Açaí seed extract (ASE, 300 mg/kg-1d-1) on adiposity and hepatic steatosis in mice that were fed a high-fat (HF) diet and its underlying mechanisms based on hepatic lipid metabolism and oxidative stress. Four groups were studied: C57BL/6 mice that were fed with standard diet (10% fat, Control), 10% fat + ASE (ASE), 60% fat (HF), and 60% fat + ASE (HF + ASE) for 12 weeks. We evaluated the food intake, body weight gain, serum glucose and lipid profile, hepatic cholesterol and triacyglycerol (TG), hepatic expression of pAMPK, lipogenic proteins (SREBP-1c, pACC, ACC, HMG-CoA reductase) and cholesterol excretion transporters, ABCG5 and ABCG8. We also evaluated the steatosis in liver sections and oxidative stress. ASE reduced body weight gain, food intake, glucose levels, accumulation of cholesterol and TG in the liver, which was associated with a reduction of hepatic steatosis. The increased expressions of SREBP-1c and HMG-CoA reductase and reduced expressions of pAMPK and pACC/ACC in HF group were antagonized by ASE. The ABCG5 and ABCG8 transporters expressions were increased by the extract. The antioxidant effect of ASE was demonstrated in liver of HF mice by restoration of SOD, CAT and GPx activities and reduction of the increased levels of malondialdehyde and protein carbonylation. In conclusion, ASE substantially reduced the obesity and hepatic steatosis induced by HF diet by reducing lipogenesis, increasing cholesterol excretion and improving oxidative stress in the liver, providing a nutritional resource for prevention of obesity-related adiposity and hepatic steatosis.

Synbiotic Amazonian palm berry (açai, Euterpe oleracea Mart.) ice cream improved Lactobacillus rhamnosus GG survival to simulated gastrointestinal stress.

Science.gov (United States)

Costa, Mayra Garcia Maia; Ooki, Gabriela Namur; Vieira, Antônio Diogo Silva; Bedani, Raquel; Saad, Susana Marta Isay

2017-02-22

The effect of açai pulp ice cream and of its supplementation with inulin (I), whey protein concentrate (WC), and/or whey protein isolate (WI) on the viability and resistance to simulated gastrointestinal stress of the probiotic Lactobacillus (Lb.) rhamnosus GG strain throughout storage at -18 °C for up to 112 days was evaluated and morphological changes during stress were monitored. Lb. rhamnosus GG viability was stable in all formulations for up to 112 days of storage, preserving populations around 9 log CFU g -1 . Compared to the fresh culture, Lb. rhamnosus GG showed higher survival under simulated gastrointestinal conditions when incorporated into açai ice cream, indicating that the presence of the food matrix contributed to the microorganism survival. A reduction of at least 5 log cycles of Lb. rhamnosus GG was observed in all formulations after the gastrointestinal simulation in all storage periods assessed. The addition of I, WC, and/or WI did not show any significant effect on the probiotic survival under simulated gastrointestinal stress (p ice cream. Thus, the açai pulp ice cream was shown to be a suitable matrix for Lb. rhamnosus GG, improving its survival under in vitro simulated gastrointestinal conditions.

Literatura y realidad histórica. Un reencuentro con Ezequiel Martínez Estrada y su interpretación del Martín Fierro

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Amán Rosales Rodríguez

2010-01-01

Full Text Available The purpose of this paper is to critically review some of the main theoretical tenets in Ezequiel Martínez Estrada’s pessimistic stance about the Argentinean history and society of his time. Focusing on his critical remarks about the so-called «literatura o poesía gauchesca» as well as on his enthusiastic assessment of José Hernández’ Martín Fierro, the achievements and missing points in Martínez Estrada’s skeptical diagnosis will be underlined and put in broader philosophical context. For the Argentinean writer the controversial notion of a “superimposed reality” – as he infers its existence from the Martín Fierro – captures a kind of ambivalent metaphysical concurrence among the literary creation, the geographical setting and the sociopolitical state of the country.

Attenuation of Oxidative Stress and Inflammation by Portulaca oleracea in Streptozotocin-Induced Diabetic Rats.

Science.gov (United States)

Samarghandian, Saeed; Borji, Abasalt; Farkhondeh, Tahereh

2017-10-01

The present study was designed to investigate the protective effect of the aqueous extract of Portulaca oleracea against hyperglycemic, oxidative damage and inflammation in the serum of streptozotocin (STZ)-induced diabetic rats. In the present study, the rats were divided into the following groups of 8 animals each: control, untreated diabetic, 3 Portulaca oleracea (100, 200, 400 mg/kg/d)-treated diabetic groups. At the end of the 4-week period, glucose, interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), malondialdehyde (MDA), glutathione (GSH), and total antioxidant status (TAS) levels were measured. STZ caused an elevation in the serum levels of glucose, MDA, IL-6, and TNF-α with reduction in the levels of GSH and TAS ( P Portulaca oleracea ameliorated glucose, MDA, IL-6, TNF-α, GSH, and TAS levels in diabetic groups versus to the untreated groups ( P Portulaca oleracea prevented hyperglycemia by preventing the oxidative stress and inflammation.

Effect of Portulaca oleracea extracts on growth performance and microbial populations in ceca of broilers.

Science.gov (United States)

Zhao, X H; He, X; Yang, X F; Zhong, X H

2013-05-01

The aim of this study was to investigate the effects of Portulaca oleracea extracts on growth performance and microbial populations in the ceca of broilers. A total of 120 one-day-old broilers were randomly divided into 3 groups. Portulaca oleracea extracts were added to diets at 0.2 and 0.4% (wt/wt; POL-0.2, POL-0.4), respectively. The control (CON) group was administered with no P. oleracea extract supplementation. Body weight gain and feed conversion ratio were recorded every 2 wk. On d 28 and 42, the cecal contents were collected and assayed for Escherichia coli, Lactobacillus, and Bifidobacterium populations. Additionally, the pH of the ileum and cecum was measured. The results showed that both on d 28 and 42 BW gain of P. oleracea extract supplementation groups was significantly higher, whereas the feed conversion ratio was lower (P < 0.05) compared with CON. On d 28 and 42, significantly (P < 0.05) fewer E. coli were recovered from ceca of broilers provided with the POL-0.2 diet than from broilers provided with the control diet. The quantities of Lactobacillus and Bifidobacterium of POL-0.2 were significantly (P < 0.05) higher than CON. Results showed P. oleracea extracts have no distinct influence on intestinal pH. These data suggest that P. oleracea extract supplementation significantly altered the cecal bacterial community without affecting the intestinal pH.

Assessment of cytotoxicity of Portulaca oleracea Linn. against human colon adenocarcinoma and vero cell line

Science.gov (United States)

Mali, Prashant Y.

2015-01-01

Background: Portulaca oleracea Linn. (Portulacaceae) is commonly known as purslane in English. In traditional system it is used to cure diarrhea, dysentery, leprosy, ulcers, asthma, and piles, reduce small tumors and inflammations. Aim: To assess cytotoxic potential of chloroform extract of P. oleracea whole plant against human colon adenocarcinoma (HCT-15) and normal (Vero) cell line. Materials and Methods: Characterization of chloroform extract of P. oleracea by Fourier transform infrared (FTIR) spectroscopy was performed. Cytotoxicity (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide) assay was used for assessment of cytotoxic potential of chloroform extract of P. oleracea. The concentrations of 1000–0.05 μg/ml were used in the experiment. Doxorubicin was considered as standard reference drug. Results: FTIR spectrum showed the peak at 1019.52 and 1396.21 center. The 50% cell growth inhibition (IC50) of chloroform extract of P. oleracea and doxorubicin was 1132.02 μg/ml and 460.13 μg/ml against human colon adenocarcinoma and 767.60 μg/ml and 2392.71 μg/ml against Vero cell line, respectively. Conclusion: Chloroform extract of P. oleracea whole plant was less efficient or does not have cytotoxic activity against human colon adenocarcinoma cell line. It was not safe to normal Vero cell line. But, there is a need to isolate, identify, and confirm the phytoconstituents present in extract by sophisticated analytical techniques. PMID:27833374

MARTe at FTU: The new feedback control

Energy Technology Data Exchange (ETDEWEB)

Boncagni, Luca, E-mail: luca.boncagni@enea.it [EURATOM - ENEA Fusion Association, Frascati Research Centre, Division of Fusion Physics, Rome, Frascati (Italy); Sadeghi, Yahya; Carnevale, Daniele; Di Geronimo, Andrea; Varano, Gianluca; Vitelli, Riccardo [Department of Computer Science, Systems and Production, University of Rome Tor Vergata, Rome (Italy); Galperti, Critsian [Istituto di Fisica del Plasma, CNR, EURATOM-ENEA Association, Milan (Italy); Zarfati, Emanuele; Pucci, Daniele [Department Antonio Ruberti, University of Rome La Sapienza, Rome (Italy)

2012-12-15

Highlights: Black-Right-Pointing-Pointer We show that the MARTe is a candidate for ITER PSH. Black-Right-Pointing-Pointer We replace the old real-time feedback software using the MARTe framework. Black-Right-Pointing-Pointer We describe all the work done for the integration. - Abstract: Keeping in mind the necessities of a modern control system for fusion devices, such as modularity and a distributed architecture, an upgrade of the present FTU feedback control system was planned, envisaging also a possible reutilization in the proposed FAST experiment [1]. For standardization and efficiency purposes we decided to adopt a pre-existent ITER-relevant framework called MARTe [2], already used with success in other European Tokamak devices [3]. Following the developments shown in [4], in this paper we report on the structure of the new feedback system, and how it was integrated in the current control structure and pulse programming interface, and in the other MARTe systems already in FTU: RT-ODIN [5] and the ECRH and LH [6] satellite stations. The new feedback system has been installed in the FTU backup station (known as 'Feedback B'), which shares the input signals with the actual feedback system, in order to simplify the validation and debug of the new controller by testing it in parallel with the current one. Experimental results are then presented.

Evaluation of Spinacia oleracea L. leaves mucilage as an innovative suspending agent

Directory of Open Access Journals (Sweden)

Amit Kumar Nayak

2010-01-01

Full Text Available The present study was undertaken to evaluate the mucilage isolated from Spinacia oleracea L. leaves, commonly named spinach (family: Amaranthaceae as an innovative suspending agent. Zinc oxide suspensions (20% w/v were prepared using the mucilage of S. oleracea L. leaves as a suspending agent, and it was evaluated for its stability by using parameters like, sedimentation profile, degree of flocculation, and redispersibility. The effect of the tested mucilage on the suspension was compared with various commonly used suspending agents, such as, tragacanth, bentonite, and sodium carboxymethyl cellulose (NaCMC at concentrations of 0.5, 1.0, and 2.0% w/v. The results obtained indicated that the mucilage of S. oleracea L. leaves could be used as a suspending agent, and the performance was found to be superior to both tragacanth and bentonite.

Evaluation of Spinacia oleracea L. leaves mucilage as an innovative suspending agent

Science.gov (United States)

Nayak, Amit Kumar; Pal, Dilipkumar; Pany, Dipti Ranjan; Mohanty, Biswaranjan

2010-01-01

The present study was undertaken to evaluate the mucilage isolated from Spinacia oleracea L. leaves, commonly named spinach (family: Amaranthaceae) as an innovative suspending agent. Zinc oxide suspensions (20% w/v) were prepared using the mucilage of S. oleracea L. leaves as a suspending agent, and it was evaluated for its stability by using parameters like, sedimentation profile, degree of flocculation, and redispersibility. The effect of the tested mucilage on the suspension was compared with various commonly used suspending agents, such as, tragacanth, bentonite, and sodium carboxymethyl cellulose (NaCMC) at concentrations of 0.5, 1.0, and 2.0% w/v. The results obtained indicated that the mucilage of S. oleracea L. leaves could be used as a suspending agent, and the performance was found to be superior to both tragacanth and bentonite. PMID:22247868

Restauratsioon / Mart Velsker

Index Scriptorium Estoniae

Velsker, Mart, 1966-

1998-01-01

Arvustus: Üheksavägine. Tartu : Erakkond, 1997.Märka, Veiko. Tühja aju korinad; Rahman, Jan. Vasõst vask; Rüütle, Indrek. Lahkumine Puhjast; Serpent, Franȯis. Ka jumal on inimene (kõik EK$i Kaasaegse Kirjanduse Keskuse väljaanded, Tartu, 1997). Vastukaja: Pilv, Aare. Vastuseks Mart Velskri 'Restauratsioonile' // Vikerkaar (1998) nr. 4-5, lk. 185-186

Synthesis of silver nanoparticle using Portulaca oleracea L. extracts

Directory of Open Access Journals (Sweden)

Shahbazi Nafeseh

2013-09-01

Full Text Available   Objective(s: To evaluate the influences of aqueous extracts of plant parts (stem, leaves, and root of Portulaca oleracea L. on bioformation of silver nanoparticles (AgNPs.   Materials and Methods: Synthesis of silver nanoparticles by different plant part extracts of Portulaca oleracea L. was carried out and formation of nanoparticles were confirmed and evaluated using UV-Visible spectroscopy and AFM. Results: The plant extracts exposed with silver nitrate showed gradual change in color of the extract from yellow to dark brown. Different silver nanoperticles were formed using extracts of different plant parts. Conclusion: It seems that the plant parts differ in their ability to act as a reducing and capping agent.

Mart Laar imedemaalt / Neeme Raud

Index Scriptorium Estoniae

Raud, Neeme, 1969-

2006-01-01

Milton Friedmani vabaduse edendamise preemia pälvinud Mart Laari arvamusi teiste laureaatide ja Eesti edu kohta. Lisa: Friedmani preemia. Vt. samas intervjuud Salvadori ekspresidendi Fransisco Florese ja Londoni majandusinstituudi peadirektori John Blundelliga

Shaken but not stirred: Multiscale habitat suitability modeling of sympatric marten species (Martes martes and Martes foina) in the northern Iberian Peninsula

Science.gov (United States)

Maria Vergara; Samuel A. Cushman; Fermin Urra; Aritz Ruiz-Gonzalez

2016-01-01

Multispecies and multiscale habitat suitability models (HSM) are important to identify the environmental variables and scales influencing habitat selection and facilitate the comparison of closely related species with different ecological requirements. Objectives This study explores the multiscale relationships of habitat suitability for the pine (Martes...

Ornithine carbamoyltransferase from Spinacea oleracea: purification and characterization

Czech Academy of Sciences Publication Activity Database

Bellocco, E.; Di Salvo, C.; Lagana, G.; Galtieri, A.; Ficarra, S.; Kotyk, Arnošt; Leuzzi, U.

2002-01-01

Roč. 45, č. 4 (2002), s. 533-538 ISSN 0006-3134 Institutional research plan: CEZ:AV0Z5011922 Keywords : ornithine carbomoyltransferase * Spinacea oleracea Subject RIV: BE - Theoretical Physics Impact factor: 0.583, year: 2002

Composição florística e estrutura fitossociológica de dois fragmentos de floresta de restinga no Município de Bertioga, SP, Brasil Floristic and phytosociological analysis of two fragments of restinga forest in Bertioga, São Paulo State, Brazil

Directory of Open Access Journals (Sweden)

Daniela Guedes

2006-06-01

Full Text Available O presente trabalho foi realizado em dois fragmentos de floresta de restinga (floresta inundável e floresta não inundável no Município de Bertioga, Estado de São Paulo, em uma área com extensão total aproximada de 3.000.000 m², pertencente ao condomínio residencial Riviera de São Lourenço. Para o levantamento fitossociológico foram instaladas 48 parcelas de 10×10 m distribuídas em blocos de 20×30 m e de 10×30 m, onde foram amostrados todos os indivíduos lenhosos com perímetro do caule à altura do peito (PAP igual ou superior a 10 cm. Foram levantados 893 indivíduos distribuídos em 83 espécies e 31 famílias. As espécies da floresta não inundável com maior valor de importância (VI foram: Manilkara subsericea (Mart. Dubard, Amaioua intermedia Mart. ex K. Schum., Didymopanax angustissimum A. Sampaio, Miconia cubatanensis Hoehne, Euterpe edulis Mart., Syagrus pseudococos (Raud. Glassm., Bactris setosa Mart., Guarea macrophylla Vahl. e Nectandra oppositifolia Ness & Mart. ex Mez. e na floresta inundável: Eriotheca pentaphylla (Vell. emend K. Schum. A. Robyns, Calophyllum brasiliense Cambess., Syagrus pseudococos, Tabebuia cassinoides (Lam. DC., Manilkara subsericea, Tabebuia obtusifolia (Cham Bureau, Didymopanax angustissimum, Sloanea guianensis (Aubl. Benth. e Amaioua intermedia. O índice de diversidade de Shannon (H' foi de 3,50 nats/ind. para a floresta inundável e 3,70 nats/ind. para a floresta não inundável.A phytosociological investigation in two fragments of restinga forest (flooded and nonflooded in Riviera de São Lourenço complex, Bertioga, São Paulo, was carried out. Each fragment in the phytosociological survey was studied using 10×10 m plots. These plots were distributed in blocks of 20×30 m and 10×30 m, for a total area of 4,800 m². The 893 individuals sampled in both fragments were distributed in 83 species and 31 families. The species with highest importance values (IV in the flooded restinga

Coupling DCS and MARTe: two real-time control frameworks in collaboration

Energy Technology Data Exchange (ETDEWEB)

Rapson, Christopher J., E-mail: chris.rapson@ipp.mpg.de [Max Planck Institute for Plasma Physics, Boltzmannstrasse 2, 85748 Garching (Germany); Carvalho, Pedro [Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa (Portugal); Lüddecke, Klaus; Neto, André C. [Unlimited Computer Systems GmbH, Seeshaupterstr. 15, 82393 Iffeldorf (Germany); Santos, Bruno [Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa (Portugal); Treutterer, Wolfgang [Max Planck Institute for Plasma Physics, Boltzmannstrasse 2, 85748 Garching (Germany); Winter, Axel [ITER Organization, Route de Vinon-sur-Verdon, 13115 St.-Paul-Lès-Durance (France); Zehetbauer, Thomas [Max Planck Institute for Plasma Physics, Boltzmannstrasse 2, 85748 Garching (Germany)

2014-12-15

Highlights: • Similarities and differences between DCS and MARTe. • Identifies the state-of-the-art in terms of software frameworks for fusion control. • Interfaces developed for realtime and non-realtime communication between DCS and MARTe. • An algorithm replicated in DCS and MARTe produces identical results and good performance. • The start of collaboration to develop a new framework for ITER PCS. - Abstract: Fusion experiments place high demands on real-time control systems. Within the fusion community two modern framework-based software architectures have emerged as powerful tools for developing algorithms for real-time control of complex systems while maintaining the flexibility required when operating a physics experiment. The two frameworks are known as DCS (Discharge Control System), from ASDEX Upgrade and MARTe (Multithreaded Application Real-Time executor), originally from JET. Based on the success of DCS and MARTe, ITER has chosen to develop a framework architecture for its Plasma Control System which will adopt major design concepts from both the existing frameworks. This paper describes a coupling of the two existing frameworks, which was undertaken to explore the degree of similarity and compliance between the concepts, and to extend their capabilities. DCS and MARTe operate in parallel with synchronised state machines and a common message logger. Configuration data is exchanged before the real-time phase. During the real-time phase, structured data is exchanged via shared memory and an existing DCS algorithm is replicated within MARTe. The coupling tests the flexibility and identifies the respective strengths of the two frameworks, providing a well-informed basis on which to move forward and design a new ITER real-time framework.

Coupling DCS and MARTe: two real-time control frameworks in collaboration

International Nuclear Information System (INIS)

Rapson, Christopher J.; Carvalho, Pedro; Lüddecke, Klaus; Neto, André C.; Santos, Bruno; Treutterer, Wolfgang; Winter, Axel; Zehetbauer, Thomas

2014-01-01

Highlights: • Similarities and differences between DCS and MARTe. • Identifies the state-of-the-art in terms of software frameworks for fusion control. • Interfaces developed for realtime and non-realtime communication between DCS and MARTe. • An algorithm replicated in DCS and MARTe produces identical results and good performance. • The start of collaboration to develop a new framework for ITER PCS. - Abstract: Fusion experiments place high demands on real-time control systems. Within the fusion community two modern framework-based software architectures have emerged as powerful tools for developing algorithms for real-time control of complex systems while maintaining the flexibility required when operating a physics experiment. The two frameworks are known as DCS (Discharge Control System), from ASDEX Upgrade and MARTe (Multithreaded Application Real-Time executor), originally from JET. Based on the success of DCS and MARTe, ITER has chosen to develop a framework architecture for its Plasma Control System which will adopt major design concepts from both the existing frameworks. This paper describes a coupling of the two existing frameworks, which was undertaken to explore the degree of similarity and compliance between the concepts, and to extend their capabilities. DCS and MARTe operate in parallel with synchronised state machines and a common message logger. Configuration data is exchanged before the real-time phase. During the real-time phase, structured data is exchanged via shared memory and an existing DCS algorithm is replicated within MARTe. The coupling tests the flexibility and identifies the respective strengths of the two frameworks, providing a well-informed basis on which to move forward and design a new ITER real-time framework

An efficient and accurate approach to MTE-MART for time-resolved tomographic PIV

NARCIS (Netherlands)

Lynch, KP; Scarano, F.

2015-01-01

The motion-tracking-enhanced MART (MTE-MART; Novara et al. in Meas Sci Technol 21:035401, 2010) has demonstrated the potential to increase the accuracy of tomographic PIV by the combined use of a short sequence of non-simultaneous recordings. A clear bottleneck of the MTE-MART technique has been

An efficient and accurate approach to MTE-MART for time-resolved tomographic PIV

NARCIS (Netherlands)

Lynch, K.P.; Scarano, F.

2015-01-01

The motion-tracking-enhanced MART (MTE-MART; Novara et al. in Meas Sci Technol 21:035401, 2010) has demonstrated the potential to increase the accuracy of tomographic PIV by the combined use of a short sequence of non-simultaneous recordings. A clear bottleneck of the MTE-MART technique has been its

[Population aspects of sexual dimorphism in guild of the Mustelidae: Mustela lutreola, Neovison vison, Mustela putorius, Martes martes as an example].

Science.gov (United States)

Korablev, M P; Korablev, N P; Korablev, P N

2013-01-01

Size sexual dimorphism was investigated on 695 skulls of four Mustelidae species. By extent of increasing of differences between sexes the species are placed in following order: European pine marten (Martes martes), European mink (Mustela lutreola), American mink (Neovison vison), and European polecat (Mustela putorius). Extent of the dimorphism characterizes ecological plasticity of the species and is population characteristic. It is shown that M. martes takes specific and relatively narrow ecological niche of forest ecosystems, entering into weak competitive relationships with smaller Mustelidae species. The level of sexual dimorphism of M. lutreola, N. vison and M. putorius reflects intensity of its interspecific relationships within study area. High level of sexual dimorphism of M. putorius is determined by further divergence of ecological niches of males and females, and also appears to be compensatory mechanism reducing consequences of hardened environmental requirements.

Evaluation of sensorial, phytochemical and biological properties of new isotonic beverages enriched with lemon and berries during shelf life.

Science.gov (United States)

Gironés-Vilaplana, Amadeo; Mena, Pedro; Moreno, Diego A; García-Viguera, Cristina

2014-04-01

The aim of this work was to design new isotonic drinks with lemon juice and berries: maqui (Aristotelia chilensis (Molina) Stuntz), açaí (Euterpe oleracea Mart.) and blackthorn (Prunus spinosa L.), following previous research. Quality parameters, sensorial attributes, antioxidant activities (ABTS(+), DPPH(•) and O2(•-) assays) and biological capacities (α-glucosidase and lipase inhibitory assays) were evaluated over 70 days of shelf-life period. Maqui isotonic blends were the most active in all antioxidant assays (8.35 and 3.07 mmol L(-1) Trolox for ABTS(+) and DPPH(•)), in the lipase inhibitory assay (43.19 U L(-1)), and showed the highest total phenol content by the Folin-Ciocalteu test (80.97 mg 100 mL(-1) gallic acid), as a result of its higher content of total anthocyanins (42.42 mg 100 mL(-1)). Berry mixtures were also the most potent inhibitors of α-glucosidase between all samples, and displayed an attractive red colour and good sensorial attributes. All the studied parameters remained quite stable during preservation, in general, and the new isotonic drinks can be useful to equilibrate redox balance in acute and intense exercise, and support weight loss programmes, avoiding triglyceride absorption and hyperglycaemia involved in obesity and diabetes mellitus, respectively. Further research in vivo is necessary to verify their beneficial effects for sports, nutrition and health. © 2013 Society of Chemical Industry.

Genetic analisys of a cross of gaillon (Brassica oleracea var. alboglabra with cauliflower (B.oleracea var. botrytis

Directory of Open Access Journals (Sweden)

Vanessa B.M.G. Spini

2000-03-01

Full Text Available The cauliflower (Brassica oleracea var. botrytis is an annual vegetable cultivated in Southern and Southwestern Brazil with limited production in the Northeast and Centralwest. A variety of Chinese kale, "kaai laan" or "gaillon" (Brassica oleracea var. alboglabra, produces seeds at high temperatures and therefore can do so in North and Northeastern Brazil. Gaillon and cauliflower were crossed 55 times using 10 gaillon plants as mothers and 4 cauliflower plants as pollen donors. From these crosses, in the F2 generation, 612 plants with inflorescence like gaillon and 48 plants with inflorescence like cauliflower were obtained, in a proportion similar to 15:1, implying that 2 pairs of genes entered into formation of the cauliflower inflorescence type. In order to study flower color, 339 plants were analyzed: 274 presented white flowers and 65, yellow flowers, denoting that this caracter is determined by 1 pair of genes, white being dominant over yellow; white flowers had a slighly higher adaptive value in our population. The characteristic waxy leaf showed a proportion of 3 waxy plants for 1 not waxy, indicating the action of one pair of genes.A couve-flor (Brassica oleracea var. botrytis é um vegetal anual e tem seu cultivo no Brasil limitado às regiões Sul e Sudeste, com pequena produção no Nordeste e Centro-Oeste. Uma variedade de couve da China, "kaai laan" ou "gaillon" (Brassica oleracea var. alboglabra, produz sementes em altas temperaturas e, portanto, é apta a produzir sementes no Norte e Nordeste do Brasil. Gaillon e couve-flor foram cruzados. Foram feitos 55 cruzamentos usando 10 plantas de gaillon como mãe e 4 plantas de couve-flor como doadores de pólen. Desses cruzamentos, na geração F2, 612 plantas com inflorescência tipo gaillon e 48 plantas com inflorescência tipo couve-flor foram obtidas, em proporção similar a 15:1, demonstrando que 2 pares de genes estão envolvidos na formação da inflorescência em couve

A rapid extraction and analysis method for the simultaneous determination of 26 bioflavonoids in Portulaca oleracea L.

Science.gov (United States)

Liang, Xiao; Li, Lingzhi; Tian, Jinlong; Wu, Yingying; Gao, Pinyi; Li, Danqi; Zhang, Qingyi; Song, Shaojiang

2014-01-01

Portulaca oleracea L. (P. oleracea, purslane) is an edible plant that is widely distributed around the world, and flavonoids are its main bioactive constituents. Therefore, the detection of flavonoids is very important for a better understanding of its pharmacological actions and to monitor the product quality control of P. oleracea. To develop a rapid method to extract and determine 26 bioflavonoids in P. oleracea, based on microwave extraction (MWE) and triple quadrupole-linear ion trap mass spectrometry. The optimal conditions of MWE for the extraction of flavonoids from P. oleracea involved the use of methanol as the extraction solvent, a microwave power of 300 W, an extraction time of 450 s, and a solvent-to-solid ratio of 30 mL/g. The samples were analysed using an ultra-performance liquid chromatograph coupled with a triple quadrupole-linear ion trap mass spectrometer (UPLC-MS/MS) system. The calibration curves of all 26 analytes showed good linearity (r ≥ 0.999) and the intra- and interday precisions and repeatability were all within required limits. The mean recoveries measured at three concentrations were higher than 94.2%, with RSDs lower than 2.94% for the targets. The established MWE/UPLC-MS/MS method is a rapid and effective method for quality evaluation of P. oleracea from different production regions and different harvest periods. Copyright © 2014 John Wiley & Sons, Ltd.

Skred i marts: S minus seks mandater, SF plus ni

DEFF Research Database (Denmark)

Thomsen, Søren Risbjerg

2008-01-01

NYHED: "Tilslutningen til S går ad helvede til", skriver professor Søren Risbjerg Thomsen om snittet af meningsmålinger i marts.......NYHED: "Tilslutningen til S går ad helvede til", skriver professor Søren Risbjerg Thomsen om snittet af meningsmålinger i marts....

Immobilization of enzymatic extracts of Portulaca oleracea cv. roots for oxidizing aqueous bisphenol A.

Science.gov (United States)

Matsushima, Kazuki; Kaneda, Hirokazu; Harada, Kazuo; Matsuura, Hideyuki; Hirata, Kazumasa

2015-05-01

Water pollution from the release of industrial wastewater is a serious problem for almost every industry. Enzymes from portulaca, Portulaca oleracea cv., have been investigated for their ability to degrade bisphenol A (BPA), one of the well-known estrogenic pollutants. Enzymatic crude extracts from P. oleracea cv. roots were immobilized on aminopropyl-modified glass beads. They maintained BPA metabolic activity over a broad range of pH values and temperatures. The immobilized enzyme was reusable with more than 50 % of its initial activity retained after 12 batch reactions and no loss of activity after storage for 1 month at -30 °C. Thus, the immobilization of extracts from P. oleracea cv. roots is a useful method for removing BPA from industrial wastewater.

Variabilità microsatellitare in popolazioni italiane di martora, Martes martes

Directory of Open Access Journals (Sweden)

Licia Colli

2003-10-01

Full Text Available La martora, Martes martes, è un mustelide storicamente presente su gran parte del territorio italiano, soprattutto dove siano presenti foreste mature altamente strutturate e ricche di risorse. Nel corso dei decenni passati, cause quali la deforestazione con conseguente frammentazione dell'habitat, la caccia e la persecuzione da parte dell'uomo hanno portato ad un sensibile declino sia nel numero d'individui sia di popolazioni in tutta l'Europa. Frammentazione degli areali e diminuzione del numero di soggetti costituiscono le cause principali di un limitato flusso genico con conseguente formazione di popolazioni isolate di martora e perdita di variabilità genetica (Kyle et al., 2003. Per queste ragioni la martora risulta attualmente tutelata secondo quanto previsto dalla Convenzione di Berna (appendice III e dalla Direttiva europea 92/43/CEE "Habitats & Species". Di fronte a prospettive di tipo conservazionistico, diventa necessario disporre di metodologie per la valutazione della variabilità residua nella specie a livello d'individui e di popolazioni. Secondo numerosi Autori, i microsatelliti costituiscono marcatori molto efficaci nella descrizione della struttura genetica e della storia demografica di specie (Beaumont & Bruford, 1999; Linares, 1999. Il presente lavoro propone i risultati ottenuti attraverso il confronto di due campioni costituiti da individui di Martes martes provenienti dalla Sardegna (25 esemplari e dal territorio italiano (6 esemplari. L'analisi è stata condotta a livello di 7 loci microsatellitari dinucleotidici polimorfici. Il valore di F_ST calcolato dal confronto dei due gruppi è risultato pari a 0,102 e ricade nel range di variazione identificato di recente in popolazioni nord-europee di martora (Kyle et al., 2003. L'analisi della varianza molecolare (AMOVA, condotta a due livelli gerarchici, ha permesso in particolare di ripartire la varianza del campione

Hepatoprotective activity of aqueous extract of Portulaca oleracea in combination with lycopene in rats

Science.gov (United States)

Anusha, M.; Venkateswarlu, M.; Prabhakaran, V.; Taj, S. Shareen; Kumari, B. Pushpa; Ranganayakulu, D.

2011-01-01

Objective: To investigate the hepatoprotective activity of the aqueous extract of the aerial parts of Portulaca oleracea (P. oleracea) in combination with lycopene against carbon tetrachloride induced hepatotoxicity in rats. Materials and Methods: Hepatotoxicity was induced in male Wistar rats by intraperitoneal injection of carbon tetrachloride (0.1 ml/kg b.w for 14 days). The aqueous extract of P. oleracea in combination with lycopene (50 mg/kg b.w) was administered to the experimental animals at two selected doses for 14 days. The hepatoprotective activity of the combination was evaluated by the liver function marker enzymes in the serum [aspartate transaminases (AST), alanine transaminases (ALT), alkaline phosphatase (Alk.P), total bilirubin (TB), total protein (TP) and total cholesterol (TC)], pentobarbitone induced sleeping time (PST) and histopathological studies of liver. Results: Both the treatment groups showed hepatoprotective effect against carbon tetrachloride induced hepatotoxicity by significantly restoring the levels of serum enzymes to normal which was comparable to that of silymarin group. Besides, the results obtained from PST and histopathological results also support the study. Conclusions: The oral administration of P. oleracea in combination with lycopene significantly ameliorates CCl4 hepatotoxicity in rats. PMID:22022001

From Sarmiento to Martí and Hostos: Extricating the Nation from Coloniality

Directory of Open Access Journals (Sweden)

Thomas Ward

2007-10-01

Full Text Available The present article examines constructions of  race, nation and mestizaje in work of Domingo  Faustino Sarmiento, José Martí and Eugenio  Maria de Hostos. The first championed the prevailing nineteenth-century view that humanity  was being debilitated by a constant battle between  civilization and barbarism while the two Antilleans questioned it in their search for a society  liberated from coloniality. Martí denied the notion  of privilege based on Europeanness, proclaiming  that whites, blacks, indigenous and mixed-race  peoples could all claim equal rights under natural  law. Hostos agreed with Martí but took his recommendation one step further by proposing race  mixing, with all ethnic groups equally forming a  new society. Therefore Martí’s negation of racial  differences becomes with Hostos a quest for a  society that would eventually become homogeneous through miscegenation. The study concludes  that there is a timelessness inherent to Martí and  Hostos’s work that still speaks to us today in the  midst of a new awareness of ethnicity’s impact on  society. Resumen:De Sarmiento a Martí y Hostos: Rescatando al país de la colonialidadEl presente artículo examina las construcciones de  raza, nación y mestizaje en las obras de Domingo  Faustino Sarmiento, José Martí y Eugenio María de  Hostos. El primero defendía la construcción deci monónica de que la humanidad había sido debilitada por una constante batalla entre civilización y  barbarie mientras los dos antillanos la cuestionaban  en su búsqueda de una sociedad libre de la colonialidad. Martí niega la noción de privilegio basado en  lo europeo y proclama que los blancos, negros,  indígenas y personas de raza mezclada podrían  reclamar la igualdad de derechos bajo leyes naturales. Hostos estuvo de acuerdo con Martí pero llevó  su recomendación un paso más allá, proponiendo  que la mezcla de razas, con todos los grupos �

Amides and an alkaloid from Portulaca oleracea.

Science.gov (United States)

Kokubun, Tetsuo; Kite, Geoffrey C; Veitch, Nigel C; Simmonds, Monique S J

2012-08-01

A total of 16 phenolic compounds, including one new and five known N-cinnamoyl phenylethylamides, one new pyrrole alkaloid named portulacaldehyde, five phenylpropanoid acids and amides, and derivatives of benzaldehyde and benzoic acid, were isolated and identified from a polar fraction of an extract of Portulaca oleracea. Their structures were determined through spectroscopic analyses.

Paneeldiskussioon [veebipõhisest õpikeskkonnast] / Mart Laanpere

Index Scriptorium Estoniae

Laanpere, Mart

2003-01-01

Maire Salundi (projekt Learning for Sharing) juhtimisel läbi viidud paneeldiskussioon, milles osalesid Mart Laanepere, Kerttu Lõhmus (AS Trainator Training), Mall Maasik (Audentes Ariko AS) ja Anne Villems (Tartu Ülikool)

Utilização dos recursos naturais por comunidades humanas do Parque Ecoturístico do Guamá, Belém, Pará Utilization of natural resources by the human communities of the Guamá Ecotouristic Park, Belém, Pará

Directory of Open Access Journals (Sweden)

Ana Sílvia Sardinha Ribeiro

2007-06-01

Full Text Available O trabalho apresenta dados sobre o uso dos recursos naturais por populações humanas em pequenas comunidades (vilas localizadas no entorno (n = 6 e no interior (n = 1 do Parque Ecoturístico do Guamá (PEG, visando avaliar os impactos sobre a fauna e flora local, ante a implantação de um projeto de infra-estrutura rodoviária local. A metodologia consistiu da aplicação de dois modelos de questionários. Um direcionado a pessoas-chave, como: moradores mais antigos, presidentes de associações, agentes de saúde, etc, e o outro aplicado aleatoriamente aos adultos locais. Buscou-se atingir pelo menos 50% das famílias das pequenas localidades (11 famílias. Em todos os casos é realizado o extrativismo da fauna e flora, principalmente com o objetivo de subsistência. As espécies mais caçadas foram Agouti paca,Dasyprocta agouti,Nasua nasua, Euphractus sexcintus e Hydrochaeris hydrochaeris. A complementação da renda familiar através do comércio de caça sob encomenda é realizada em todas as comunidades estudadas. Frutíferas como Euterpe oleracea Mart., Musa spp e Theobroma cacao foram encontradas em 100% das comunidades (n=7. Plantas medicinais são rotineiramente cultivadas e empregadas. As espécies madeireiras exploradas são utilizadas com o objetivo de produção de carvão, construção de casas e de meios de transporte, predominando o Inga edulis, Virola surinamensis (Rol. Warb e Simaruba amara (Aubl.. O trabalho discute os resultados sob o aspecto da implantação do projeto viário, oferecendo recomendações para a minimização dos impactos do mesmo sobre a fauna, a flora e o modo tradicional de vida das comunidades.This work shows data about the use of natural resources by the human population located in (n=1 and around (n=6 the Guamá Ecotouristic Park (GEP, in order to evaluate the impact on the local fauna and flora in view of the project for constructing a road through the park. The methodology utilized in this community

REPETIBILIDADE DE CARACTERES DO CACHO DE AÇAIZEIRO NAS CONDIÇÕES DE BELÉM-PA REPEATIBILITY OF CHARACTERS OF THE RACEME OF AÇAI PALM AT BELÉM-PA

Directory of Open Access Journals (Sweden)

MARIA DO SOCORRO PADILHA DE OLIVEIRA

2001-12-01

Full Text Available Estimou-se o coeficiente de repetibilidade em caracteres do cacho de açaizeiro (Euterpe oleracea Mart. nas condições de Belém-PA, com o intuito de determinar a capacidade de eles expressarem a variabilidade genética dessa fruteira. Para tanto, foram colhidos quatro cachos por planta, todos apresentando completa maturação, em 30 genótipos pertencentes à Coleção de Germoplasma de Açaí da Embrapa Amazônia Oriental, onde foram mensurados seis caracteres: peso total do cacho (PTC, peso de frutos por cacho (PFC, número de frutos por cacho (NFC, número de ráquilas por cacho (NRC, peso médio do fruto (PMF e rendimento de frutos por cacho (RFC. A análise da repetibilidade, do número de medições necessárias e do coeficiente de determinação para cada caráter foi obtida através do método da análise de variância, utilizando o modelo com dois fatores de variação. Verificou-se que todos os caracteres apresentaram diferenças significativas entre genótipos, com o número de frutos, número de ráquilas e peso médio do fruto, evidenciando diferenças ao nível de 1% de probabilidade. Porém, o maior coeficiente de repetibilidade foi registrado para peso médio do fruto, enquanto os demais caracteres apresentaram valores inexpressivos. Essa variável teve, também, o maior coeficiente de determinação; entretanto, o número de repetições desejável para esse caráter deve ser quase o triplo do usado nesse estudo. Pelo fato de o coeficiente de repetibilidade expressar o valor máximo de herdabilidade, conclui-se que o PMF pode ser usado como parâmetro de seleção em métodos de melhoramento menos rigorosos.Was considered the repeatibility coefficient in characters of raceme in açai palm (Euterpe oleracea Mart. at Belém-PA with the intention of determining their capacity to express the genetic variability of that fruit bowl. For that were picked four racemes by plant, all presenting complete maturation, in 30 genotypes

Hypnotic Effect of Portulaca oleracea L on Pentobarbital-Induced Sleep in Mice.

Science.gov (United States)

Hamedi, Shokouhsadat; Forouzanfar, Fatemeh; Rakhshandeh, Hasan; Arian, Amirali

2018-03-08

In Iranian Traditional Medicine, the herbs with cold and wet temperament can help to improve insomnia. Portulaca oleracea has cold and wet temperament, so the present study was carried out to investigate the sleep-prolonging effect of Portulaca oleracea. This work was an experimental study on mice which were randomly divided into these groups: saline (control); Diazepam:) positive control); hydro-alcoholic extract of Portulaca oleracea (12.5, 25, 50, 75 and 100 mg/kg) by Soxhlet apparatus and maceration; in the effective (dose25 mg/kg), different fractions of extract were tested. Ethyl acetate fraction (EAF:); n-Hexane fraction (n-HF); water fraction (WF). All the test compounds were injected intraperitoneally (IP) 30 minutes before pentobarbital administration (30 mg/kg). Duration and latency of pentobarbital-induced sleep were recorded. Also, LD50 of Portulaca oleracea extract was determined and the possible neurotoxicity of the extract was tested on neural PC12 cells. Besides, 30 min after administration of hydro alcoholic extract (HAE) motor coordination (rota-rod test) were assessed. HAE increased the duration of pentobarbital-induced sleep at doses of 25, 50, 75 and 100 mg/kg The hypnotic effect of HAE was comparable to that induced by diazepam. Similarly, WF, EAF, and n-HF at 25 mg/kg could increase sleep duration. The sleep latency was decreased by HAE and NHF but not by WF and EAF. The LD50 value for HAE was found to be 4.8 g/Kg. HAE and its fractions did not show neurotoxic effect in cultured PC12-cell line, also HAE did not affect the animals' performance on the rotarod test. The present data demonstrated that Portulaca oleracea potentiates sleeping behaviors. The main component (s) responsible for the hypnotic effects of this plant is most likely a non-polar agent (s) which is found in n-HF. Isolation of the active constituents may yield a novel sedative drug. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

José Martí y la ciencia

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José Suárez Lezcano

2015-11-01

Full Text Available Nuestro José Martí, ejemplo de una formación humanística integral, escribió en una carta a María Mantilla:”Donde yo encuentro poesía mayor es en los libros de ciencia…” Martí vio la ciencia como un fenómeno social y consideró que el desarrollo científico técnico debía estar en función de la satisfacción de las necesidades de las grandes mayorías. Su sistemática voluntad  de cultivarse, de tratar de entender al mundo y no sólo de vivirlo, de razonarlo, fue el motor principal que llevaría a Martí a hacerse de una cultura científica y técnica poco común entre los hombres de su época. También el hecho de vivir durante muchos años en los Estados Unidos le permitió analizar con  profundidad y realismo la sociedad de la época, y por tanto llegó a tener una visión muy avanzada de la relación hombre – naturaleza - sociedad, llegando a convertirse en un gran divulgador de los avances de la ciencia y la técnica de aquella época. La originalidad del periodismo de nuevo tipo que inicia José Martí como vehículo para la divulgación científico - técnica encuentra una de sus más altas expresiones en la revista “La América”. Esta publicación había comenzado en abril de 1882, en Nueva York, bajo la dirección de Rafael de Castro Palomino, quien solicita la colaboración del poeta. A partir del mes de marzo de 1883, el Maestro redacta “La América” en su totalidad, desde los titulares hasta los artículos ensayísticos. Martí caracteriza “La América” como “periódico útil”, pues se dedicó a divulgar los adelantos de la industria, comercio y agricultura de los productores de la América del Norte, y en el avisador prudente de los compradores de la América del Sur. Este carácter de la publicación permite a José Martí tratar desde las páginas de “La América” los recientes descubrimientos científicos, la reseña detallada de las exposiciones que exhibían los últimos logros de la t

A shared memory based interface of MARTe with EPICS for real-time applications

International Nuclear Information System (INIS)

Yun, Sangwon; Neto, André C.; Park, Mikyung; Lee, Sangil; Park, Kaprai

2014-01-01

Highlights: • We implemented a shared memory based interface of MARTe with EPICS. • We implemented an EPICS module supporting device and driver support. • We implemented an example EPICS IOC and CSS OPI for evaluation. - Abstract: The Multithreaded Application Real-Time executor (MARTe) is a multi-platform C++ middleware designed for the implementation of real-time control systems. It currently supports the Linux, Linux + RTAI, VxWorks, Solaris and MS Windows platforms. In the fusion community MARTe is being used at JET, COMPASS, ISTTOK, FTU and RFX in fusion [1]. The Experimental Physics and Industrial Control System (EPICS), a standard framework for the control systems in KSTAR and ITER, is a set of software tools and applications which provide a software infrastructure for use in building distributed control systems to operate devices. For a MARTe based application to cooperate with an EPICS based application, an interface layer between MARTe and EPICS is required. To solve this issue, a number of interfacing solutions have been proposed and some of them have been implemented. Nevertheless, a new approach is required to mitigate the functional limitations of existing solutions and to improve their performance for real-time applications. This paper describes the design and implementation of a shared memory based interface between MARTe and EPICS

A shared memory based interface of MARTe with EPICS for real-time applications

Energy Technology Data Exchange (ETDEWEB)

Yun, Sangwon, E-mail: yunsw@nfri.re.kr [National Fusion Research Institute (NFRI), Gwahangno 169-148, Yuseong-Gu, Daejeon 305-806 (Korea, Republic of); Neto, André C. [Associação EURATOM/IST, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, P-1049-001 Lisboa (Portugal); Park, Mikyung; Lee, Sangil; Park, Kaprai [National Fusion Research Institute (NFRI), Gwahangno 169-148, Yuseong-Gu, Daejeon 305-806 (Korea, Republic of)

2014-05-15

Highlights: • We implemented a shared memory based interface of MARTe with EPICS. • We implemented an EPICS module supporting device and driver support. • We implemented an example EPICS IOC and CSS OPI for evaluation. - Abstract: The Multithreaded Application Real-Time executor (MARTe) is a multi-platform C++ middleware designed for the implementation of real-time control systems. It currently supports the Linux, Linux + RTAI, VxWorks, Solaris and MS Windows platforms. In the fusion community MARTe is being used at JET, COMPASS, ISTTOK, FTU and RFX in fusion [1]. The Experimental Physics and Industrial Control System (EPICS), a standard framework for the control systems in KSTAR and ITER, is a set of software tools and applications which provide a software infrastructure for use in building distributed control systems to operate devices. For a MARTe based application to cooperate with an EPICS based application, an interface layer between MARTe and EPICS is required. To solve this issue, a number of interfacing solutions have been proposed and some of them have been implemented. Nevertheless, a new approach is required to mitigate the functional limitations of existing solutions and to improve their performance for real-time applications. This paper describes the design and implementation of a shared memory based interface between MARTe and EPICS.

Mart Laar - visionäärina kuulsam välismaal / Kertu Ruus

Index Scriptorium Estoniae

Ruus, Kertu, 1977-

2005-01-01

Maailmas on kümneid riike, kes imetlevad meie endise peaministri Mart Laari reforme Eestis. Kommenteerivad Margaret Thatcher, Alfredo Arias-King ja Tiit Vähi. Vt. samas: Väljavõtteid Mart Laari kohta ajakirjandusest; Laia haardega tegutseja: Liikmelisus

La historia orbital de Deimos y la oblicuidad de Marte

Science.gov (United States)

Brunini, A.; Yokoyama, T.

Recientemente, se ha demostrado mediante extensas integraciones numéricas, que la rotación de Marte pasó repetidamente por estados caóticos de movimiento, debido al pasaje por zonas de resonancia spin - órbita. En dichas circunstancias, la oblicuidad marciana pudo haber sufrido grandes excursiones de varias decenas de grados. Las consecuencias de dichas variaciones son de extrema importancia en el contexto de la búsqueda de manifestaciones de vida fósil en dicho planeta. El estudio de la dinámica orbital del satélite más exterior de Marte, Deimos, nos ha permitido comprobar, en el marco de las distintas teorías sobre su orígen, que la oblicuidad de Marte dificilmente pudo haber sufrido variaciones que la aparten más de 10o respecto de actual valor. Este resultado parece ser mucho más robusto que las simulaciones numéricas de Touma y Wisdom asi como las de Laskar y Robutel, lo que permite poner cotas más severas a la evolución paleoclimática de Marte.

Technological innovations in the propagation of Açaí palm and Bacuri

Directory of Open Access Journals (Sweden)

JOSÉ EDMAR URANO DE CARVALHO

2018-03-01

Full Text Available ABSTRACT Açaí palm (Euterpe oleracea Mart. and bacuri tree (Platonia insignis Mart. are two important fruit species native to the Brazilian Amazon. The first species is widely cultivated in the Brazilian Amazon and with some orchards established in other regions of Brazil. Nevertheless, most of its production still comes from the dense and diversified native açaí orchards found in the floodplains of the Amazon River estuary and that in the last two decades have been managed for the production of fruits. The production of the second species is still dependent on extractivism of abundant natural populations in areas of secondary vegetation. Both species reproduce naturally sexually and asexually. In the case of açai tree, asexual reproduction occurs by means of the emission of tillers in the base of stems. For bacuri tree, reproduction is verified by means of abundant sprouts that arise from roots that develop horizontally, near the ground surface. The propagation of açaí palm tree, particularly sexually is a consolidated process, practically without innovations in the last years. Açaí seeds show rapid and relatively uniform germination. A seedling obtained from seeds is suitable for final planting four to six months after emergence of seedlings. Regarding propagation by asexual route, it has been demonstrated that tillers can be used for the production of seedlings. For this, they should be separated from the mother plant when they have two completely expanded leaves and one at the beginning of formation. The big challenge is to increase the multiplication rate of tillers. For bacuri tree, considerable advances have been obtained both for sexual and asexual propagation. Propagation by primary root cuttings or direct seeding at the definitive site constitutes innovations that overcome the problem of the slow and uneven germination of the bacuri seed. The developed grafting techniques allow both the production of grafted seedlings and

Sustaining Higher Education Using Wal-Mart's Best Supply Chain Management Practices

Science.gov (United States)

Comm, Clare L.; Mathaisel, Dennis F. X.

2008-01-01

Purpose: The costs in higher education are increasing and need to be controlled. This paper aims to demonstrate what lessons higher education could learn from Wal-Mart's reasons for its financial success with its focus on efficient and effective supply chain management (SCM) best practices. Design/methodology/approach: Wal-Mart's best practices in…

NEW ACCESSIONS OF BRASSICA OLERACEA L. IN VIR PLANT COLLECTION

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A. M. Artemieva

2017-01-01

Full Text Available Varieties of Brassica oleracea L. are widespread and favorite crops, where among them the head cabbage and cauliflower are the most economically important. Russia takes third place after India and Chine among countries with largest production areas and gross yield for the crop. In Russia, the area sown to cabbage is about 27 thousand hectares. 728 cultivars and hybrids of eight cabbage crops including 528 hybrids have been added in State Register of Breeding Achievements of Russian Federation in 2017. The collection of Brassica oleracea L. totally contains of 2421 accessions and takes first place at number of collected items among the world’s plant genbanks. The phenotyping, genotyping, passportization, development of core collection and trait collection as well as initial breeding accessions, covering all genetic diversity have been carried out at department of genetic resources of vegetables and melons at VIR. Selection of most promising accessions is performed to find genes and sources for economically valuable traits to develop proper lines and hybrids. There are the enrichment of the collection by means of ordering and gathering in expeditions, the improvement of methods of phenotyping and development of database for all biological accessions studied at the department. In 2007-2016, 255 accessions of Brassica oleracea L. have been included into collection to be used in different national breeding programs.

Phytoremediation of fluoride with garden ornamentals Nerium oleander, Portulaca oleracea, and Pogonatherum crinitum.

Science.gov (United States)

Khandare, Rahul V; Desai, Shaileshkumar B; Bhujbal, Sourabh S; Watharkar, Anuprita D; Biradar, Shivtej P; Pawar, Pankaj K; Govindwar, Sanjay P

2017-03-01

Nursery grown plants of Nerium oleander, Pogonatherum crinitum, and Portulaca oleracea were observed to remove fluoride up to 92, 80, and 73%, respectively, from NaF solution at the concentration of 10 mg L -1 within 15 days. Concentration range of 10-50 mg L -1 of fluoride revealed a constant decrease of removal from 92 to 51% within 15 days by N. oleander, while the biomass (one to five plants) showed enhancement in removal from 74 to 98% in 10 days. Translocation and bioaccumulation factors calculated after fluoride contents in roots and leaves of N. oleander, P. crinitum, and P. oleracea were 1.85, 1.19, and 1.43, and 9.8, 3.6, and 2.2, respectively. P . oleracea, P. crinitum, and N. oleander showed reductions in chlorophyll contents by 40, 57 and 25 and 8%, carbohydrates by 50, 44, and 16%, and proteins by 38, 53, and 15%, respectively. Activities of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPX) in the roots of P. oleracea, P. crinitum, and N. oleander were observed to be induced by 400, 383, and 500%; 80, 105, and 424%; and 153, 77, and 71%, respectively, while the leaves showed induction in SOD, CAT, and GPX activities by 550, 315, and 165%; 196, 227, and 243%; and 280, 242, and 184%, respectively. Results endorsed the superiority of N. oleander for fluoride removal over other plant species.

Noored lavastajad ületavad valdkondade piirid / Uku Uusberg, Mart Kase ; intervjueerinud Eero Epner

Index Scriptorium Estoniae

Uusberg, Uku, 1984-

2009-01-01

Noored lavastajad Uku Uusberg ja Mart Kase oma vastvalminud lavastustest. 19. mail esietendub NO99 teatris Uku Uusbergi kirjutatud ja lavastatud "Pea vahetus" ja Niine 11 kontorihoones Mart Kase kirjutatud ja lavastatud "Startup"

Bedre ældrepleje - ved hjælp af Marte Meo metoden

DEFF Research Database (Denmark)

Meyer, Helle; Schjoldager, Helle Højbo

Projektet (forløb efteråret 2008 - foråret 2009) havde til formål at give personalet ved boformer for borgere med demens indsigt i og redskaber til at kommunikere med borgeren på en for begge parter anerkendende måde - ved hjælp af Marte Meo metoden. Det konkluderes at implementering af Marte Meo...... metoden har medført, at personalet har udviklet deres samspil og kommunikation med borgerne på en måde, der synes at fremme borgerens trivsel, værdighed og livsglæde og dermed bidrage til en øget livskvalitet. En række faktorer der henholdsvis fremmer og hæmmer implementeringen af Marte Meo metoden...

Construction and analysis of a high-density genetic linkage map in cabbage (Brassica oleracea L. var. capitata

Directory of Open Access Journals (Sweden)

Wang Wanxing

2012-10-01

Full Text Available Abstract Background Brassica oleracea encompass a family of vegetables and cabbage that are among the most widely cultivated crops. In 2009, the B. oleracea Genome Sequencing Project was launched using next generation sequencing technology. None of the available maps were detailed enough to anchor the sequence scaffolds for the Genome Sequencing Project. This report describes the development of a large number of SSR and SNP markers from the whole genome shotgun sequence data of B. oleracea, and the construction of a high-density genetic linkage map using a double haploid mapping population. Results The B. oleracea high-density genetic linkage map that was constructed includes 1,227 markers in nine linkage groups spanning a total of 1197.9 cM with an average of 0.98 cM between adjacent loci. There were 602 SSR markers and 625 SNP markers on the map. The chromosome with the highest number of markers (186 was C03, and the chromosome with smallest number of markers (99 was C09. Conclusions This first high-density map allowed the assembled scaffolds to be anchored to pseudochromosomes. The map also provides useful information for positional cloning, molecular breeding, and integration of information of genes and traits in B. oleracea. All the markers on the map will be transferable and could be used for the construction of other genetic maps.

El concepto de “revolución” en José Martí

OpenAIRE

Mora Rodríguez, Arnoldo

2007-01-01

El presente ensayo busca situar en el contexto histórico de finales del siglo XIX el aporte político, filosófico y literario de José Martí. Con Martí, no solo culmina un siglo, sino que forja un proyecto integral histórico a todos los pueblos de Nuestra América para el nuevo siglo. This essay searches to situate in the historical context al the end of the century the political, philosophical and literary contribution of José Martí. With him ends a century and also creates an integral histo...

Plant regeneration of Brassica oleracea subsp. italica (Broccoli) CV ...

African Journals Online (AJOL)

STORAGESEVER

2009-06-03

Jun 3, 2009 ... Department of Agriculture Technology, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul. Ehsan, Malaysia. Accepted 20 March, 2009. Hypocotyls and shoot tips were used as explants in in vitro plant regeneration of broccoli (Brassica oleracea subsp.italica) cv. Green Marvel.

Atmospheric NH3 as plant nutrient: A case study with Brassica oleracea

International Nuclear Information System (INIS)

Castro, Ana; Stulen, Ineke; De Kok, Luit J.

2008-01-01

Nutrient-sufficient and nitrate- or sulfate-deprived plants of Brassica oleracea L. were exposed to 4 μl l -1 NH 3 (2.8 mg m -3 ), and effects on biomass production and allocation, N-compounds and root morphology investigated. Nitrate-deprived plants were able to transfer to atmospheric NH 3 as nitrogen source, but biomass allocation in favor of the root was not changed by exposure to NH 3 . NH 3 reduced the difference in total root length between nitrate-sufficient and nitrate-deprived plants, and increased the specific root length in the latter. The internal N status, therefore, might be involved in controlling root length in B. oleracea. Root surface area, volume and diameter were unaffected by both nitrate deprivation and NH 3 exposure. In sulfate-deprived plants an inhibitory effect of NH 3 on root morphological parameters was observed. These plants, therefore, might be more susceptible to atmospheric NH 3 than nitrate-deprived plants. The relevance of the present data under field conditions is discussed. - Atmospheric NH 3 can serve as sole N source for Brassica oleracea, but does not change root biomass allocation in nitrate-deprived plants

Responses of Portulaca oleracea Linn. to selenium exposure.

Science.gov (United States)

Prabha, D; Sivakumar, S; Subbhuraam, C V; Son, H K

2015-05-01

The present study was investigated to evaluate the uptake and accumulation of selenium (Se) by the stem cuttings of Portulaca oleracea L. grown in alfisol amended with various concentrations of Se. P. oleracea accumulated a maximum of 63.4 µg g(-1) dry weight in a short growth period of 42 days. The order of accumulation of Se among the plant parts was leaves (31.5 μg g(-1)) > stems (16.4 μg g(-1)) > roots (15.5 μg g(-1)). The accumulation potential was fourfold higher than the plant available concentration of 15.2 μg g(-1) of Se g(-1) of soil (diethylenetriaminepentaacetic acid extracted). Although the plant was able to accumulate Se in their tissues, increase in Se concentrations in soil caused a concentration-dependent decrease in the growth rate of plants (regeneration of leaves, number of leaves, number of roots, root length, stem length and biomass). © The Author(s) 2013.

Bioinformatics analysis of the ς-carotene desaturase gene in cabbage (Brassica oleracea var. capitata)

Science.gov (United States)

Sun, Bo; Zheng, Aihong; Jiang, Min; Xue, Shengling; Zhang, Fen; Tang, Haoru

2018-04-01

ς-carotene desaturase (ZDS) is an important enzyme in carotenoid biosynthesis. Here, the Brassica oleracea var. capitata ZDS (BocZDS) gene sequences were obtained from Brassica database (BRAD), and preformed for bioinformatics analysis. The BocZDS gene mapped to Scaffold000363, and contains an open reading frame of 1,686 bp that encodes a 561-amino acid protein with a calculated molecular mass of 62.00 kD and an isoelectric point (pI) of 8.2. Subcellular localization predicted the BocZDS gene was in the chloroplast. The conserved domain of the BocZDS protein is PLN02487, indicating that it belongs the member of zeta-carotene desaturase. Homology analysis indicates that the ZDS protein is apparently conserved during plant evolution and is most closely related to B. oleracea var. oleracea, B. napus, and B. rapa. The findings of the present study provide a molecular basis for the elucidation of ZDS gene function in cabbage.

Mart Kangro: uhkete dekoratsioonide taga peab olema elus hetk / intervjueerinud Tanel Veenre

Index Scriptorium Estoniae

Kangro, Mart, 1974-

2011-01-01

Intervjuu koreograafi, lavastaja ja tantsija Mart Kangroga, kes kindlustab end pigem vaimses plaanis, kui loob endale müüre ümber. Ta leiab, et oluline on olla mobiilne, olla kulgemises, olla teel. Kanuti Gildi saalis etendub 24., 26. ja 27. septembril Mart Kangro tantsulavastus "Talk to Me"

Intraspecific Variation in Carotenoids of Brassica oleracea var. sabellica.

Science.gov (United States)

Mageney, Vera; Baldermann, Susanne; Albach, Dirk C

2016-04-27

Carotenoids are best known as a source of natural antioxidants. Physiologically, carotenoids are part of the photoprotection in plants as they act as scavengers of reactive oxygen species (ROS). An important source of carotenoids in European food is Brassica oleracea. Focusing on the most abundant carotenoids, we estimated the contents of ß-carotene, (9Z)-neoxanthin, zeaxanthin, and lutein as well as those of chlorophylls a and b to assess their variability in Brassica oleracea var. sabellica. Our analyses included more than 30 cultivars categorized in five distinct sets grouped according to morphological characteristics or geographical origin. Our results demonstrated specific carotenoid patterns characteristic for American, Italian, and red-colored kale cultivars. Moreover, we demonstrated a tendency of high zeaxanthin proportions under traditional harvest conditions, which accord to low-temperature regimes. We also compared the carotenoid patterns of self-generated hybrid lines. Corresponding findings indicated that crossbreeding has a high potential for carotenoid content optimization in kale.

[Manaca, sweet potato and yam: possible substitutes of wheat in foods for two ethnic population in Venezuelan Amazon].

Science.gov (United States)

Sangronis, Elba; Teixeira, Patricia; Otero, Mariana; Guerra, Marisa; Hidalgo, Glida

2006-03-01

In this study, flours from manaca or acai (Euterpe oleracea Mart), sweet potato (Ipomea batatas), and yam (Dioscorea spp.), species grown in the Venezuelan Amazon, were obtained. The proximal composition, water activity (a(w)), Fe, Ca, Zn, Mg, Cu, Na and K content were determined for the flours of manaca, sweet potato and yam. These flours were used as ingredients of products for the inhabitants of the indigenous populations of the Venezuelan Amazon (Piaroa and Hiwi). Two types of products that traditionally contain wheat flour in their formulation (ingredient they know by transculturation) were formulated; an attempt to substitute it totally or partially by the manaca, sweet potato and/or yam flours was made. For the selection of the products to be formulated, the preferences and eating habits of the indigenous communities and ease and simplicity of the preparations to be developed, were considered. The two products formulated were cookies and "small cakes". To decide on the formulation(s) of the final product(s), sensorial evaluations were made in the laboratory and in the indigenous communities Piaroa and Hiwi. High fat content (16%), dietetic fiber (59.7%) and iron (25 mg / 100 g) in manaca or acai flour were remarkable. Two types of cookies and two of "small cakes" were equally accepted by the indigenous communities. Cookies supply a high iron amount (about 24%). The feasibility of substituting the wheat flour by manaca, sweet potato and yam flour in products accepted by two ethnic populations of the Venezuelan Amazon was demonstrated.

Comparative proteomic analysis of the thermotolerant plant Portulaca oleracea acclimation to combined high temperature and humidity stress.

Science.gov (United States)

Yang, Yunqiang; Chen, Jinhui; Liu, Qi; Ben, Cécile; Todd, Christopher D; Shi, Jisen; Yang, Yongping; Hu, Xiangyang

2012-07-06

Elevated temperature and humidity are major environmental factors limiting crop yield and distribution. An understanding of the mechanisms underlying plant tolerance to high temperature and humidity may facilitate the development of cultivars adaptable to warm or humid regions. Under conditions of 90% humidity and 35 °C, the thermotolerant plant Portulaca oleracea exhibits excellent photosynthetic capability and relatively little oxidative damage. To determine the proteomic response that occurs in leaves of P. oleracea following exposure to high temperature and high humidity, a proteomic approach was performed to identify protein changes. A total of 51 differentially expressed proteins were detected and characterized functionally and structurally; these identified proteins were involved in various functional categories, mainly including material and energy metabolism, the antioxidant defense responses, protein destination and storage, and transcriptional regulation. The subset of antioxidant defense-related proteins demonstrated marked increases in activity with exposure to heat and humidity, which led to lower accumulations of H(2)O(2) and O(2)(-) in P. oleracea compared with the thermosensitive plant Arabidopsis thaliana. The quickly accumulations of proline content and heat-shock proteins, and depleting abscisic acid (ABA) via increasing ABA-8'-hydroxylase were also found in P. oleracea under stress conditions, that resulted into greater stomata conductance and respiration rates. On the basis of these findings, we propose that P. oleracea employs multiple strategies to enhance its adaptation to high-temperature and high-humidity conditions.

Mart Remmeli "geograafilised figuurid" / Arvo Krikmann

Index Scriptorium Estoniae

Krikmann, Arvo, 1939-2017

2005-01-01

Refereeritakse broshüüri Remmel, Mart. Large data bases in quantitative history : some handling techniques. Tallinn : Academy of Sciences of the Estonian S.S.R., 1979. (Preprint ; KKI-12) inimgeograafia teooria vaatevinklist ning kommenteeritakse seda Eesti folkloorinähtuste geograafilist levikut puutuva materjaliga

The "Martes complex"-- an opportunity to bring together marten, fisher, sable, wolverine, and tayra biologists

Science.gov (United States)

Gilbert Proulx; Keith B. Aubry

2014-01-01

Recent phylogenetic studies have shown that the genus Martes is polyphyletic with respect to the Fisher (Pekania pennanti), which is more closely related to the Wolverine (Gulo gulo) and Tayra (Eira barbara) than it is to the martens. We refer to the 11 species in the genera Martes, Pekania, Gulo, and Eira as the “Martes Complex”. Because the species comprising the...

A MARTe based simulator for the JET Vertical Stabilization system

Energy Technology Data Exchange (ETDEWEB)

Bellizio, Teresa, E-mail: teresa.bellizio@unina.it [Associazione EURATOM-ENEA-CREATE, University di Napoli Federico II, Via Claudio 21, 80125 Napoli (Italy); De Tommasi, Gianmaria; Risoli, Nicola; Albanese, Raffaele [Associazione EURATOM-ENEA-CREATE, University di Napoli Federico II, Via Claudio 21, 80125 Napoli (Italy); Neto, Andre [Associacao EURATOM/IST, Inst. de Plasmas e Fusao Nuclear - Laboratorio Associado, Instituto Superior, Tecnico, P-1049-001 Lisboa (Portugal)

2011-10-15

Validation by means of simulation is a crucial step when developing real-time control systems. Modeling and simulation are an essential tool since the early design phase, when the control algorithms are designed and tested. This phase is commonly carried out in off-line environments such as Matlab and Simulink. A MARTe-based simulator has been recently developed to validate the new JET Vertical Stabilization (VS) system. MARTe is the multi-thread framework used at JET to deploy hard real-time control systems. This paper presents the software architecture of the MARTe-based simulator and it shows how this tool has been effectively used to evaluate the effects of Edge Localized Modes (ELMs) on the VS system. By using the simulator it is possible to analyze different plasma configurations, extrapolating the limit of the new vertical amplifier in terms of the energy of the largest rejectable ELM.

José Martí, Viajes y Apreciación del Pueblo Maya

Directory of Open Access Journals (Sweden)

Carlos Eduardo Bojórquez Urzaiz

2015-09-01

Full Text Available Este trabajo expone y examina los cambios de percepción que experimentó José Martí sobre el papel de los pueblos originarios de América, entre 1875 y 1878, años en los que vivió en México y Guatemala, con intensa escala en Yucatán, lugares donde conoció directamente la cultura y el pueblo maya. Martí resume una visión inicial de nuestra América en la figura lítica de Chacmool cuando después de ser expropiada por el gobierno yucateco, el Apóstol cubano la admira en la ciudad de Mérida y expresa que es la síntesis de las culturas americanas. Aspecto poco estudiado en la obra de Martí es este acercamiento etnográfico a la realidad maya de Yucatán y Guatemala.   This paper aims at presenting and examining the change of perception José Martí underwent in relation to the role of the native peoples of America between 1875 and 1878, the years he lived in Mexico and Guatemala, during which he spent a large amount of time in Yucatan, where he was able to get to know the Mayan culture and its people first hand. Martí summarized his initial vision of our America in the lithic figure of Chacmool, which he was able to admire in the city of Merida, after it had been expropriated by the government of Yucatan. The Cuban apostle described this as a synthesis of American cultures. This ethnographic insight into the Mayan reality in Yucatan and Guatemala represents a scarcely explored aspect of Martí's work.

Evaluating performance of MARTe as a real-time framework for feed-back control system at tokamak device

Energy Technology Data Exchange (ETDEWEB)

Yun, Sangwon; Lee, Woongryol; Lee, Taegu; Park, Mikyung; Lee, Sangil [National Fusion Research Institute (NFRI), Gwahangno 169-148, Yuseong-Gu, Daejeon 305-806 (Korea, Republic of); Neto, André C. [Associação EURATOM/IST, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, P-1049-001 Lisboa (Portugal); Wallander, Anders [ITER Organization, Route de Vinon sur Verdon, 13115 St Paul Lez Durance (France); Kim, Young-Kuk, E-mail: ykim@cnu.ac.kr [Chungnam National University, Daejeon 305-764 (Korea, Republic of)

2013-10-15

Highlights: •We measured the performance of MARTe by measuring response time and jitter. •We compared the performance of application with and without MARTe. •We compared the performance of MARTe application on different O/Ss. -- Abstract: The Korea Super conducting Tokamak Advanced Research (KSTAR) is performing the task of “Demonstration and Evaluation of ITER CODAC Technologies at KSTAR” whose objective is the evaluation of real-time technologies for decision making on real-time operating systems (RTOS), real-time frameworks and 10 GbE networks. In this task, the Multi-threaded Application Real-Time executor (MARTe) has been evaluated as a real-time framework for real-time feedback control system. The performance of MARTe has been verified by measuring response time and jitter in a path of feedback control from an analog input of a monitoring system to an analog output of an actuator system. In addition, the evaluation has been performed in terms of applicability of MARTe and its performance depending on types of operating system and tuning of CPU affinity and priority. This paper describes the overview of MARTe as a real-time framework, the results of evaluation performance and its implementation.

Evaluating performance of MARTe as a real-time framework for feed-back control system at tokamak device

International Nuclear Information System (INIS)

Yun, Sangwon; Lee, Woongryol; Lee, Taegu; Park, Mikyung; Lee, Sangil; Neto, André C.; Wallander, Anders; Kim, Young-Kuk

2013-01-01

Highlights: •We measured the performance of MARTe by measuring response time and jitter. •We compared the performance of application with and without MARTe. •We compared the performance of MARTe application on different O/Ss. -- Abstract: The Korea Super conducting Tokamak Advanced Research (KSTAR) is performing the task of “Demonstration and Evaluation of ITER CODAC Technologies at KSTAR” whose objective is the evaluation of real-time technologies for decision making on real-time operating systems (RTOS), real-time frameworks and 10 GbE networks. In this task, the Multi-threaded Application Real-Time executor (MARTe) has been evaluated as a real-time framework for real-time feedback control system. The performance of MARTe has been verified by measuring response time and jitter in a path of feedback control from an analog input of a monitoring system to an analog output of an actuator system. In addition, the evaluation has been performed in terms of applicability of MARTe and its performance depending on types of operating system and tuning of CPU affinity and priority. This paper describes the overview of MARTe as a real-time framework, the results of evaluation performance and its implementation

Comparative Analysis of Disease-Linked Single Nucleotide Polymorphic Markers from Brassica rapa for Their Applicability to Brassica oleracea

Science.gov (United States)

Cho, Young-Il; Ahn, Yul-Kyun; Tripathi, Swati; Kim, Jeong-Ho; Lee, Hye-Eun; Kim, Do-Sun

2015-01-01

Numerous studies using single nucleotide polymorphisms (SNPs) have been conducted in humans, and other animals, and in major crops, including rice, soybean, and Chinese cabbage. However, the number of SNP studies in cabbage is limited. In this present study, we evaluated whether 7,645 SNPs previously identified as molecular markers linked to disease resistance in the Brassica rapa genome could be applied to B. oleracea. In a BLAST analysis using the SNP sequences of B. rapa and B. oleracea genomic sequence data registered in the NCBI database, 256 genes for which SNPs had been identified in B. rapa were found in B. oleracea. These genes were classified into three functional groups: molecular function (64 genes), biological process (96 genes), and cellular component (96 genes). A total of 693 SNP markers, including 145 SNP markers [BRH—developed from the B. rapa genome for high-resolution melt (HRM) analysis], 425 SNP markers (BRP—based on the B. rapa genome that could be applied to B. oleracea), and 123 new SNP markers (BRS—derived from BRP and designed for HRM analysis), were investigated for their ability to amplify sequences from cabbage genomic DNA. In total, 425 of the SNP markers (BRP-based on B. rapa genome), selected from 7,645 SNPs, were successfully applied to B. oleracea. Using PCR, 108 of 145 BRH (74.5%), 415 of 425 BRP (97.6%), and 118 of 123 BRS (95.9%) showed amplification, suggesting that it is possible to apply SNP markers developed based on the B. rapa genome to B. oleracea. These results provide valuable information that can be utilized in cabbage genetics and breeding programs using molecular markers derived from other Brassica species. PMID:25790283

AFLP analysis of genetic diversity and phylogenetic relationships of Brassica oleracea in Ireland.

Science.gov (United States)

El-Esawi, Mohamed A; Germaine, Kieran; Bourke, Paula; Malone, Renee

2016-01-01

Brassica oleracea L. is one of the most economically important vegetable crop species of the genus Brassica L. This species is threatened in Ireland, without any prior reported genetic studies. The use of this species is being very limited due to its imprecise phylogeny and uncompleted genetic characterisation. The main objective of this study was to assess the genetic diversity and phylogenetic relationships of a set of 25 Irish B. oleracea accessions using the powerful amplified fragment length polymorphism (AFLP) technique. A total of 471 fragments were scored across all the 11 AFLP primer sets used, out of which 423 (89.8%) were polymorphic and could differentiate the accessions analysed. The dendrogram showed that cauliflowers were more closely related to cabbages than kales were, and accessions of some cabbage types were distributed among different clusters within cabbage subgroups. Approximately 33.7% of the total genetic variation was found among accessions, and 66.3% of the variation resided within accessions. The total genetic diversity (HT) and the intra-accessional genetic diversity (HS) were 0.251 and 0.156, respectively. This high level of variation demonstrates that the Irish B. oleracea accessions studied should be managed and conserved for future utilisation and exploitation in food and agriculture. In conclusion, this study addressed important phylogenetic questions within this species, and provided a new insight into the inclusion of four accessions of cabbages and kales in future breeding programs for improving varieties. AFLP markers were efficient for assessing genetic diversity and phylogenetic relationships in Irish B. oleracea species. Copyright © 2016 Académie des sciences. Published by Elsevier SAS. All rights reserved.

Local cabbage ( Brassica oleracea var. capitata L.) populations from ...

African Journals Online (AJOL)

In previous experiments, we were able to augment cabbages (Brassica oleracea L. var. capitata L.) with two new local open pollinated (OP) populations and one cultivar. The type of use indicated that these are cabbages with thinner and juicier leaves, which predisposes their heads for fine grating and also makes their ...

P-MartCancer-Interactive Online Software to Enable Analysis of Shotgun Cancer Proteomic Datasets.

Science.gov (United States)

Webb-Robertson, Bobbie-Jo M; Bramer, Lisa M; Jensen, Jeffrey L; Kobold, Markus A; Stratton, Kelly G; White, Amanda M; Rodland, Karin D

2017-11-01

P-MartCancer is an interactive web-based software environment that enables statistical analyses of peptide or protein data, quantitated from mass spectrometry-based global proteomics experiments, without requiring in-depth knowledge of statistical programming. P-MartCancer offers a series of statistical modules associated with quality assessment, peptide and protein statistics, protein quantification, and exploratory data analyses driven by the user via customized workflows and interactive visualization. Currently, P-MartCancer offers access and the capability to analyze multiple cancer proteomic datasets generated through the Clinical Proteomics Tumor Analysis Consortium at the peptide, gene, and protein levels. P-MartCancer is deployed as a web service (https://pmart.labworks.org/cptac.html), alternatively available via Docker Hub (https://hub.docker.com/r/pnnl/pmart-web/). Cancer Res; 77(21); e47-50. ©2017 AACR . ©2017 American Association for Cancer Research.

Effects of Crude Extracts of Portulaca oleracea on Haematological ...

African Journals Online (AJOL)

The effects of oral administration of aqueous (AEPO) and methanolic (MEPO) extracts of Portulaca oleracea at various doses (25mg/kg BW, 50mg/kgBW and 75mg/kgBW) on haematological and plasma biochemical parameters of albino rats were investigated. The extracts were administered on daily basis for 30 days and ...

Vigencia Política de José Martí

Directory of Open Access Journals (Sweden)

María Luisa Laviana Cuetos

2015-09-01

Full Text Available Semblanza del escritor y político cubano José Martí (1853-1895, con especial atención a la vigencia de su pensamiento ético, base de su permanente actualidad. Martí fue el organizador y líder de la última guerra americana contra el colonialismo europeo clásico, pero el sentido profundo que dio a esa lucha la convirtió en una verdadera guerra de liberación nacional: el primer movimiento concreto contra el imperialismo. Entre los rasgos más originales del pensamiento martiano están: la proclamación de la igualdad de razas; la búsqueda de la superación de las diferencias de clase mediante el equilibrio de las fuerzas sociales; la reivindicación de la solidaridad hacia los humildes como un deber; la predicación de una “guerra sin odios”, que debía ser obra del pueblo y no de líderes; la comprensión y definición de Nuestra América; la insistencia en la necesidad de una descolonización cultural latinoamericana; y el antiimperialismo.   This paper is a sketch of the Cuban writer and politician José Martí (1853-1895, with special attention to the validity of his ethical thinking, which is the basis of his permanent relevance. Martí was the organizer and leader of the last American war against European colonialism, but the deep commitment he made to that struggle turned it into a war of national liberation, the first concrete movement against imperialism. Among the most original features of Martí’s thought are the proclamation of the equality of races; the search for overcoming class differences through the balance of social forces; solidarity with the poor being considered a duty; the preaching of a “war without hates” that must be the work of the people, its leaders; the comprehension and definition of Our America; the insistence on the need, throughout Latin America, of cultural decolonization; and an anti-imperialistic stance.

Changes in the Proteome of Xylem Sap in Brassica oleracea in Response to Fusarium oxysporum Stress.

Science.gov (United States)

Pu, Zijing; Ino, Yoko; Kimura, Yayoi; Tago, Asumi; Shimizu, Motoki; Natsume, Satoshi; Sano, Yoshitaka; Fujimoto, Ryo; Kaneko, Kentaro; Shea, Daniel J; Fukai, Eigo; Fuji, Shin-Ichi; Hirano, Hisashi; Okazaki, Keiichi

2016-01-01

Fusarium oxysporum f.sp. conlutinans (Foc) is a serious root-invading and xylem-colonizing fungus that causes yellowing in Brassica oleracea. To comprehensively understand the interaction between F. oxysporum and B. oleracea, composition of the xylem sap proteome of the non-infected and Foc-infected plants was investigated in both resistant and susceptible cultivars using liquid chromatography-tandem mass spectrometry (LC-MS/MS) after in-solution digestion of xylem sap proteins. Whole genome sequencing of Foc was carried out and generated a predicted Foc protein database. The predicted Foc protein database was then combined with the public B. oleracea and B. rapa protein databases downloaded from Uniprot and used for protein identification. About 200 plant proteins were identified in the xylem sap of susceptible and resistant plants. Comparison between the non-infected and Foc-infected samples revealed that Foc infection causes changes to the protein composition in B. oleracea xylem sap where repressed proteins accounted for a greater proportion than those of induced in both the susceptible and resistant reactions. The analysis on the proteins with concentration change > = 2-fold indicated a large portion of up- and down-regulated proteins were those acting on carbohydrates. Proteins with leucine-rich repeats and legume lectin domains were mainly induced in both resistant and susceptible system, so was the case of thaumatins. Twenty-five Foc proteins were identified in the infected xylem sap and 10 of them were cysteine-containing secreted small proteins that are good candidates for virulence and/or avirulence effectors. The findings of differential response of protein contents in the xylem sap between the non-infected and Foc-infected samples as well as the Foc candidate effectors secreted in xylem provide valuable insights into B. oleracea-Foc interactions.

Changes in the proteome of xylem sap in Brassica oleracea in response to Fusarium oxysporum stress

Directory of Open Access Journals (Sweden)

Zijing ePu

2016-02-01

Full Text Available Fusarium oxysporum f. sp. conlutinans (Foc is a serious root-invading and xylem-colonizing fungus that causes yellowing in Brassica oleracea. To comprehensively understand the interaction between F. oxysporum and B. oleracea, composition of the xylem sap proteome of the non-infected and Foc-infected plants was investigated in both resistant and susceptible cultivars using liquid chromatography-tandem mass spectrometry (LC-MS/MS after in-solution digestion of xylem sap proteins. Whole genome sequencing of Foc was carried out and generated a predicted Foc protein database. The predicted Foc protein database was then combined with the public B. oleracea and B. rapa protein databases downloaded from Uniprot and used for protein identification. About 200 plant proteins were identified in the xylem sap of susceptible and resistant plants. Comparison between the non-infected and Foc-infected samples revealed that Foc infection causes changes to the protein composition in B. oleracea xylem sap where repressed proteins accounted for a greater proportion than those of induced in both the susceptible and resistant reactions. The analysis on the proteins with concentration change >=2 fold indicated a large portion of up- and down-regulated proteins were those acting on carbohydrates. Proteins with leucine-rich repeats and legume lectin domains were mainly induced in both resistant and susceptible system, so was the case of thaumatins. Twenty-five Foc proteins were identified in the infected xylem sap and ten of them were cysteine-containing secreted small proteins that are good candidates for virulence and/or avirulence effectors. The findings of differential response of protein contents in the xylem sap between the non-infected and Foc-infected samples as well as the Foc candidate effectors secreted in xylem provide valuable insights into B. oleracea-Foc interactions.

Propagação vegetativa de Hyptis leucocephala Mart. ex Benth. e Hyptis platanifolia Mart. ex Benth. (Lamiaceae Vegetative propagation of Hyptis leucocephala Mart. ex Benth. and Hyptis platanifolia Mart. ex Benth

Directory of Open Access Journals (Sweden)

L.M Oliveira

2011-01-01

Full Text Available O gênero Hyptis (Lamiaceae apresenta metabolismo especial de notável variabilidade, possuindo predominância de óleos essenciais, que têm muito valor junto a diversas comunidades que utilizam essas plantas pelas propriedades terapêuticas. Diversos estudos com esse gênero têm demonstrado que os óleos essenciais apresentam propriedades antimicrobiana, antifúngica, citotóxica, antiinflamatória, anti-HIV e inseticida, entretanto, poucos são os estudos voltados para a exploração sustentável dessas espécies. O objetivo desse trabalho foi avaliar o efeito de diferentes tipos de estaca e diferentes concentrações de ácido indolbutírico (AIB sobre a taxa de sobrevivência, crescimento e enraizamento de estacas de Hyptis leucocephala Mart. ex Benth. e Hyptis platanifolia Mart. ex Benth., espécies endêmicas do semi-árido nordestino cujo valor medicinal tem sido amplamente comprovado. O experimento teve duração de quatro meses. Foram utilizadas estacas apicais, médio-apicais, médio-basais e basais tratadas com soluções de 0, 1000, 2000 e 4000 mg L-1 de ácido indolbutírico (AIB, durante 5 minutos. A utilização de estacas apicais, médio/apicais e médio/basais induzidas com 2000 e 4000 mg L-1 de AIB possibilitaram melhores resultados para propagação vegetativa de Hyptis leucocephala. Para Hyptis platanifolia os melhores resultados foram obtidos com a utilização de estacas médio/basais e basais tratadas com AIB na concentração de 2000 e 4000 mg L-1.The genus Hyptis (Lamiaceae has a special metabolism with remarkable variability and predominance of essential oils of great value to the various communities that use these plants due to their therapeutic properties. A number of studies on this genus have demonstrated that its essential oils present antimicrobial, antifungal, cytotoxic, anti-inflammatory, anti-HIV and insecticidal activities. However, few studies have focused on the sustainable exploitation of these species

Hipanto e tubo estaminal em Xylopia aromatica (Lam.) Mart. (Annonaceae)

OpenAIRE

Dias, Marilda C.; Castro, Marília de M.; Kinoshita, Luiza S.; Semir, João

1998-01-01

(Hipanto e tubo estaminal em Xylopia aromatica (Lam.) Mart. (Annonaceae)). Observou-se, em corte longitudinal de flores de cinco espécies de Xylopia, um anel lenhoso ao redor dos carpelos e sobre ele, inserido de forma espiralada, o conjunto de estames e estaminódios. Para elucidar a natureza desta estrutura, foi realizado um estudo anatômico em flores adultas de Xylopia aromatica (Lam.) Mart., particularmente da vascularização desde a base do receptáculo até os estames, estaminódios e carpel...

P-MartCancer–Interactive Online Software to Enable Analysis of Shotgun Cancer Proteomic Datasets

Energy Technology Data Exchange (ETDEWEB)

Webb-Robertson, Bobbie-Jo M.; Bramer, Lisa M.; Jensen, Jeffrey L.; Kobold, Markus A.; Stratton, Kelly G.; White, Amanda M.; Rodland, Karin D.

2017-10-31

P-MartCancer is a new interactive web-based software environment that enables biomedical and biological scientists to perform in-depth analyses of global proteomics data without requiring direct interaction with the data or with statistical software. P-MartCancer offers a series of statistical modules associated with quality assessment, peptide and protein statistics, protein quantification and exploratory data analyses driven by the user via customized workflows and interactive visualization. Currently, P-MartCancer offers access to multiple cancer proteomic datasets generated through the Clinical Proteomics Tumor Analysis Consortium (CPTAC) at the peptide, gene and protein levels. P-MartCancer is deployed using Azure technologies (http://pmart.labworks.org/cptac.html), the web-service is alternatively available via Docker Hub (https://hub.docker.com/r/pnnl/pmart-web/) and many statistical functions can be utilized directly from an R package available on GitHub (https://github.com/pmartR).

A Study of the Discount Retail Industry and Wal-Mart Corporation

Science.gov (United States)

1998-06-05

hamburgers they think of McDonalds. When someone thinks of discount retail Ihey think of Wal-Mart. Although someone wanting a hamburger can go Burger King ...SOURCES CONSULTED 117 in Executive Summary By no mistake, Wal-Mart is the reigning king in the retail industry. Conscientious decisions as to what...wilh J.C. Penney Company in 1940. After a five-year tour in the Army, he purchased a Ben Franklin variety store franchise in Newport, Arkansas in

Modeling and analysis of real-time and embedded systems with UML and MARTE developing cyber-physical systems

CERN Document Server

Selic, Bran

2013-01-01

Modeling and Analysis of Real-Time and Embedded Systems with UML and MARTE explains how to apply the complex MARTE standard in practical situations. This approachable reference provides a handy user guide, illustrating with numerous examples how you can use MARTE to design and develop real-time and embedded systems and software. Expert co-authors Bran Selic and Sébastien Gérard lead the team that drafted and maintain the standard and give you the tools you need apply MARTE to overcome the limitations of cyber-physical systems. The functional sophistication required of modern cyber-physical

Effects of Extracts of Portulaca oleracea on Reproductive Functions ...

African Journals Online (AJOL)

The effects of aqueous (AEPO) and methanolic (MEPO) extracts of Portulaca oleracea were investigated on estrous cycle and histopathology of the ovaries and uteri in female albino rats. Treatments of rats for 21 days with 75mg/kg BW AEPO produced no significant (P>0.05) change in the duration of all the phases of ...

Text data extraction for a prospective, research-focused data mart: implementation and validation.

Science.gov (United States)

Hinchcliff, Monique; Just, Eric; Podlusky, Sofia; Varga, John; Chang, Rowland W; Kibbe, Warren A

2012-09-13

Translational research typically requires data abstracted from medical records as well as data collected specifically for research. Unfortunately, many data within electronic health records are represented as text that is not amenable to aggregation for analyses. We present a scalable open source SQL Server Integration Services package, called Regextractor, for including regular expression parsers into a classic extract, transform, and load workflow. We have used Regextractor to abstract discrete data from textual reports from a number of 'machine generated' sources. To validate this package, we created a pulmonary function test data mart and analyzed the quality of the data mart versus manual chart review. Eleven variables from pulmonary function tests performed closest to the initial clinical evaluation date were studied for 100 randomly selected subjects with scleroderma. One research assistant manually reviewed, abstracted, and entered relevant data into a database. Correlation with data obtained from the automated pulmonary function test data mart within the Northwestern Medical Enterprise Data Warehouse was determined. There was a near perfect (99.5%) agreement between results generated from the Regextractor package and those obtained via manual chart abstraction. The pulmonary function test data mart has been used subsequently to monitor disease progression of patients in the Northwestern Scleroderma Registry. In addition to the pulmonary function test example presented in this manuscript, the Regextractor package has been used to create cardiac catheterization and echocardiography data marts. The Regextractor package was released as open source software in October 2009 and has been downloaded 552 times as of 6/1/2012. Collaboration between clinical researchers and biomedical informatics experts enabled the development and validation of a tool (Regextractor) to parse, abstract and assemble structured data from text data contained in the electronic health

MARTe: A Multiplatform Real-Time Framework

Science.gov (United States)

Neto, André C.; Sartori, Filippo; Piccolo, Fabio; Vitelli, Riccardo; De Tommasi, Gianmaria; Zabeo, Luca; Barbalace, Antonio; Fernandes, Horacio; Valcarcel, Daniel F.; Batista, Antonio J. N.

2010-04-01

Development of real-time applications is usually associated with nonportable code targeted at specific real-time operating systems. The boundary between hardware drivers, system services, and user code is commonly not well defined, making the development in the target host significantly difficult. The Multithreaded Application Real-Time executor (MARTe) is a framework built over a multiplatform library that allows the execution of the same code in different operating systems. The framework provides the high-level interfaces with hardware, external configuration programs, and user interfaces, assuring at the same time hard real-time performances. End-users of the framework are required to define and implement algorithms inside a well-defined block of software, named Generic Application Module (GAM), that is executed by the real-time scheduler. Each GAM is reconfigurable with a set of predefined configuration meta-parameters and interchanges information using a set of data pipes that are provided as inputs and required as output. Using these connections, different GAMs can be chained either in series or parallel. GAMs can be developed and debugged in a non-real-time system and, only once the robustness of the code and correctness of the algorithm are verified, deployed to the real-time system. The software also supplies a large set of utilities that greatly ease the interaction and debugging of a running system. Among the most useful are a highly efficient real-time logger, HTTP introspection of real-time objects, and HTTP remote configuration. MARTe is currently being used to successfully drive the plasma vertical stabilization controller on the largest magnetic confinement fusion device in the world, with a control loop cycle of 50 ?s and a jitter under 1 ?s. In this particular project, MARTe is used with the Real-Time Application Interface (RTAI)/Linux operating system exploiting the new ?86 multicore processors technology.

Borassus aethiopum Mart, Arecaceae

African Journals Online (AJOL)

SARAH

28 févr. 2014 ... Gbesso et al. J. Appl. Biosci. 2014. Distribution géographique de Borassus aethiopum Mart et caractérisation phytoécologique de leurs habitats du Benin. 6105. Sc1. Sc2. Sc3. Sc4. Sc5. Sc6. Sc7. Sc8. Ss1. Ss2. Ss4. Ss5. Ss7. Ss8. Ss9. Ss10. Sg1. Sg2. Sg3. Sg4. Sg5. Sg6. Sg7. Sg8. Sg9. Sg10. Sg11.

Writing race: patria, mestizaje and racial identity in the works of José Martí

OpenAIRE

Miranda Navarro, Oleski Jose

2016-01-01

The research herein presents an analysis of the evolution of José Martí’s racial thought throughout his written work. The principle focus of this investigation is to establish a comprehensive understanding of Martí’s racial ideas and to explain how the author developed the anti-racist principles demonstrated in his final years of life. The thesis proposes that José Martí’s ideas regarding race relations were shaped through a gradual process defined by his experiences of exile. ...

Genome-wide comparative analysis of 20 miniature inverted-repeat transposable element families in Brassica rapa and B. oleracea.

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Perumal Sampath

Full Text Available Miniature inverted-repeat transposable elements (MITEs are ubiquitous, non-autonomous class II transposable elements. Here, we conducted genome-wide comparative analysis of 20 MITE families in B. rapa, B. oleracea, and Arabidopsis thaliana. A total of 5894 and 6026 MITE members belonging to the 20 families were found in the whole genome pseudo-chromosome sequences of B. rapa and B. oleracea, respectively. Meanwhile, only four of the 20 families, comprising 573 members, were identified in the Arabidopsis genome, indicating that most of the families were activated in the Brassica genus after divergence from Arabidopsis. Copy numbers varied from 4 to 1459 for each MITE family, and there was up to 6-fold variation between B. rapa and B. oleracea. In particular, analysis of intact members showed that whereas eleven families were present in similar copy numbers in B. rapa and B. oleracea, nine families showed copy number variation ranging from 2- to 16-fold. Four of those families (BraSto-3, BraTo-3, 4, 5 were more abundant in B. rapa, and the other five (BraSto-1, BraSto-4, BraTo-1, 7 and BraHAT-1 were more abundant in B. oleracea. Overall, 54% and 51% of the MITEs resided in or within 2 kb of a gene in the B. rapa and B. oleracea genomes, respectively. Notably, 92 MITEs were found within the CDS of annotated genes, suggesting that MITEs might play roles in diversification of genes in the recently triplicated Brassica genome. MITE insertion polymorphism (MIP analysis of 289 MITE members showed that 52% and 23% were polymorphic at the inter- and intra-species levels, respectively, indicating that there has been recent MITE activity in the Brassica genome. These recently activated MITE families with abundant MIP will provide useful resources for molecular breeding and identification of novel functional genes arising from MITE insertion.

Glutathione Transferases Superfamily: Cold-Inducible Expression of Distinct GST Genes in Brassica oleracea

Directory of Open Access Journals (Sweden)

Harshavardhanan Vijayakumar

2016-07-01

Full Text Available Plants, as sessile organisms, can suffer serious growth and developmental consequences under cold stress conditions. Glutathione transferases (GSTs, EC 2.5.1.18 are ubiquitous and multifunctional conjugating proteins, which play a major role in stress responses by preventing oxidative damage by reactive oxygen species (ROS. Currently, understanding of their function(s during different biochemical and signaling pathways under cold stress condition remain unclear. In this study, using combined computational strategy, we identified 65 Brassica oleracea glutathione transferases (BoGST and characterized them based on evolutionary analysis into 11 classes. Inter-species and intra-species duplication was evident between BoGSTs and Arabidopsis GSTs. Based on localization analyses, we propose possible pathways in which GST genes are involved during cold stress. Further, expression analysis of the predicted putative functions for GST genes were investigated in two cold contrasting genotypes (cold tolerance and susceptible under cold condition, most of these genes were highly expressed at 6 h and 1 h in the cold tolerant (CT and cold susceptible (CS lines, respectively. Overall, BoGSTU19, BoGSTU24, BoGSTF10 are candidate genes highly expressed in B. oleracea. Further investigation of GST superfamily in B. oleracea will aid in understanding complex mechanism underlying cold tolerance in plants.

Modulation of lung inflammation and immune markers in asthmatic rats treated by Portulaca oleracea

Science.gov (United States)

Kaveh, Mahsa; Eidi, Akram; Nemati, Ali; Boskabady, Mohammad Hossein

2017-01-01

Objective: Previous studies indicated anti-inflammatory effects for Portulaca oleracea in various inflammatory disorders. In this study, the effects of P. oleracea on bronchoalveolar lavage fluid (BALF) levels of total protein (TP), Phospholipase A2 (PLA2) and IgE in sensitized rats were examined. Materials and Methods: Male rats were randomly divided into six groups namely, control (group C), sensitized rats (group S), sensitized animal treated with three concentrations of the extract of P. oleracea and dexamethasone (n = 8 for each group). The levels of TP, PLA2 and IgE in BALF were measured. Results: The levels of TP, PLA2 and IgE were significantly increased in the BALF of group S compared to group C (p<0.001 for all cases). However, treatment of S rats with all concentrations of the extract, resulted in a significant and concentration-dependent reduction in BALF levels of TP, PLA2 and IgE compared to group S (p<0.001 for all cases except for the effect of the low extract concentration on TP). Dexamethasone treatment also led to significant reduction of TP, PLA2 and IgE (p<0.001 for all cases). The effect of dexamethasone treatment on PLA2 was significantly higher than the effects of all extract concentrations (p<0.001 for all cases). However, the effect of high extract concentration on TP and IgE was significantly higher than that of dexamethasone (p<0.001 both cases). Conclusion: The results indicated anti-inflammatory and immunomodulatory effects of P. oleracea in sensitized rats (as an animal model of asthma) which was equal or more marked than dexamethasone at studied concentrations. PMID:29062802

Mart Laar tuleb peatada / Villu Reiljan

Index Scriptorium Estoniae

Reiljan, Villu, 1953-

2001-01-01

Ilmunud ka: Vooremaa, 8. dets. 2001, lk. 2; Nädaline, 8. dets. 2001, lk. 4; Võrumaa Teataja, 11. dets. 2001, lk. 2; Järva Teataja, 13. dets. 2001, lk. 2. Kuigi ca 70% Eesti rahvast on elektrijaamade erastamise vastu, on Mart Laari valitsus ignoreerinud rahva tahet, talle on kogu aeg sekundeerinud Mihkel Pärnoja. Autor: ERL. Parlamendisaadik

Ettevaatust! Läbipõlemisoht! / Mart Raudsaar

Index Scriptorium Estoniae

Raudsaar, Mart, 1973-

2004-01-01

Raamatu "Burnout - läbipõlemine" autor Mart Jürisoo räägib läbipõlemise olulisematest põhjustest ja tunnustest, võrdleb Eesti ja Rootsi juhtide juhtimisstiile ning analüüsib stressitegureid Eesti organisatsioonides ja ühiskonnas. Lisa: Läbipõlemise olulisemad sümptomid; Difuusse ehk Marshmallow-organisatsiooni tunnused ja probleemid

Antitumor activity of Portulaca oleracea L. polysaccharides against cervical carcinoma in vitro and in vivo.

Science.gov (United States)

Zhao, Rui; Gao, Xu; Cai, Yaping; Shao, Xingyue; Jia, Guiyan; Huang, Yulan; Qin, Xuegong; Wang, Jingwei; Zheng, Xiaoliang

2013-07-25

Portulaca oleracea L. has been used as folk medicine in different countries to treat different ailments in humans. P. oleracea L. polysaccharide (POL-P), extracted from P. oleracea L., is found to have bioactivities such as hypoglycemic and hypolipidemic activities, antioxidant and antitumor activities. In our study, a water-soluble polysaccharide (POL-P3b) was successfully purified from Galium verum L. by DEAE cellulose and Sephadex G-200 column chromatography. To evaluate the anticancer efficacy and associated mechanisms of POL-P3b on cervical cancer in vitro and in vivo, we showed that treatment of HeLa cell with POL-P3b inhibited cell proliferation. In addition, POL-P3b significantly inhibited tumor growth in U14-bearing mice. Further analysis indicated that POL-P3b possesses the activity of inhibiting cervical cancer cell growth in vitro and in vivo at a concentration- and time-dependent manner, and the mechanisms were associated with Sub-G1 phase cell cycle arrest, triggering DNA damage and inducing apoptosis. Copyright © 2013 Elsevier Ltd. All rights reserved.

Annona crassiflora Mart. fruit pulp effects on biochemical parameters and rat colon carcinogenesis

Directory of Open Access Journals (Sweden)

Vinícius Paula Venâncio

2013-08-01

Full Text Available A. crassiflora Mart. a Brazilian savannah fruit, is a source of phytochemical compounds that possess a wide array of biological activities, including free radical scavenging. This native fruit proved to potentialize the mutagenic process in previous in vivo investigations. The aim of the present study was to investigate the effects of A. crassiflora Mart. pulp intake on colonic cell proliferation and on the development of Aberrant Crypt Foci (ACF in male Wistar rats. The animals were fed with either a commercial diet or a diet supplemented with A. crassiflora Mart. pulp mixed in 1%, 10% or 20% (w/w for 4 weeks or 20 weeks. The carcinogen 1,2-dimethylhydrazine dihydrochloride (4 doses, 40 mg kg-1 each was used to induce colonic ACF. After euthanasia, the blood, liver and colon samples were collected for biochemical determinations, oxidative stress or ACF development analysis, respectively. Immunohistochemical analyses of the colonic mucosa were performed using antibodies against proliferating cell nuclear antigen (PCNA in normal-appearing colonic crypt and β-catenin in ACF. There was no ACF development in the colon from groups treated with A. crassiflora Mart. pulp. Also, the biochemical and oxidative stress analysis, PCNA labeling and ACF development (number, multiplicity or cellular localization of β-catenin were unchanged as a result of marolo pulp intake. Thus, the present results suggest that A. crassiflora Mart. pulp intake did not exert any protective effect in the colon carcinogenesis induced by DMH in rats.

The Brassica oleracea genome reveals the asymmetrical evolution of polyploid genomes

Science.gov (United States)

Liu, Shengyi; Liu, Yumei; Yang, Xinhua; Tong, Chaobo; Edwards, David; Parkin, Isobel A. P.; Zhao, Meixia; Ma, Jianxin; Yu, Jingyin; Huang, Shunmou; Wang, Xiyin; Wang, Junyi; Lu, Kun; Fang, Zhiyuan; Bancroft, Ian; Yang, Tae-Jin; Hu, Qiong; Wang, Xinfa; Yue, Zhen; Li, Haojie; Yang, Linfeng; Wu, Jian; Zhou, Qing; Wang, Wanxin; King, Graham J; Pires, J. Chris; Lu, Changxin; Wu, Zhangyan; Sampath, Perumal; Wang, Zhuo; Guo, Hui; Pan, Shengkai; Yang, Limei; Min, Jiumeng; Zhang, Dong; Jin, Dianchuan; Li, Wanshun; Belcram, Harry; Tu, Jinxing; Guan, Mei; Qi, Cunkou; Du, Dezhi; Li, Jiana; Jiang, Liangcai; Batley, Jacqueline; Sharpe, Andrew G; Park, Beom-Seok; Ruperao, Pradeep; Cheng, Feng; Waminal, Nomar Espinosa; Huang, Yin; Dong, Caihua; Wang, Li; Li, Jingping; Hu, Zhiyong; Zhuang, Mu; Huang, Yi; Huang, Junyan; Shi, Jiaqin; Mei, Desheng; Liu, Jing; Lee, Tae-Ho; Wang, Jinpeng; Jin, Huizhe; Li, Zaiyun; Li, Xun; Zhang, Jiefu; Xiao, Lu; Zhou, Yongming; Liu, Zhongsong; Liu, Xuequn; Qin, Rui; Tang, Xu; Liu, Wenbin; Wang, Yupeng; Zhang, Yangyong; Lee, Jonghoon; Kim, Hyun Hee; Denoeud, France; Xu, Xun; Liang, Xinming; Hua, Wei; Wang, Xiaowu; Wang, Jun; Chalhoub, Boulos; Paterson, Andrew H

2014-01-01

Polyploidization has provided much genetic variation for plant adaptive evolution, but the mechanisms by which the molecular evolution of polyploid genomes establishes genetic architecture underlying species differentiation are unclear. Brassica is an ideal model to increase knowledge of polyploid evolution. Here we describe a draft genome sequence of Brassica oleracea, comparing it with that of its sister species B. rapa to reveal numerous chromosome rearrangements and asymmetrical gene loss in duplicated genomic blocks, asymmetrical amplification of transposable elements, differential gene co-retention for specific pathways and variation in gene expression, including alternative splicing, among a large number of paralogous and orthologous genes. Genes related to the production of anticancer phytochemicals and morphological variations illustrate consequences of genome duplication and gene divergence, imparting biochemical and morphological variation to B. oleracea. This study provides insights into Brassica genome evolution and will underpin research into the many important crops in this genus. PMID:24852848

HMB-45, S-100, NK1/C3, and MART-1 in metastatic melanoma.

Science.gov (United States)

Zubovits, Judit; Buzney, Elizabeth; Yu, Lawrence; Duncan, Lyn M

2004-02-01

The diagnosis of melanoma metastatic to lymph node remains a difficult problem given its histological diversity. We examined the staining patterns of S-100, NK1/C3, HMB-45, and MART-1 (DC10) in melanoma metastases to lymph nodes. Immunohistochemical stains were performed on tissue sections of 126 formalin-fixed lymph nodes from 126 patients with an established diagnosis of metastatic melanoma. A total of 98% of cases (123 of 126) stained positive for S-100, 93% (117 of 125) stained positive for NK1/C3, 82% (103 of 126) stained positive for MART-1, and 76% (95 of 125) stained positive for HMB-45. The distribution and intensity of staining varied among these markers. A diffuse staining pattern, defined as >50% of tumor cells stained, was observed in 83% of MART-1-positive cases but in only 56% of S-100-positive cases, 48% of NK1/C3-positive cases, and 34% of HMB-45-positive cases. A maximally intense signal was almost always observed for MART-1 (83% of positive cases) but was rarely observed for NK1/C3 (20%). S-100 and HMB-45 showed maximally intense staining in 50% and 54% of cases, respectively. S-100 and NK1/C3 stained both histiocytes and melanocytes, whereas MART-1 and HMB-45 stained only melanocytes. Seventy-eight cases (63%) stained positive for all 4 markers, 17 cases (14%) stained for all markers except HMB-45, 13 cases (10%) stained for all markers except MART-1, 6 cases (5%) stained only with S-100 and NK1/C3, 4 cases (3%) stained only with S-100 and HMB-45, and 2 cases stained for all markers except S-100. One case each stained for the following: only S-100, only S-100 and HMB-45, and all markers except NK1/C3. One case exhibited absence of staining for any of these markers. We demonstrate that lymph node metastases of melanoma are heterogeneous with regard to tumor marker expression. S-100 and NK1/C3 were the most sensitive stains for detecting metastatic melanoma; however, they both also stain other nontumor cells in lymph nodes. MART-1 did not stain

Ott Puuraid 100 / Mart Kalm

Index Scriptorium Estoniae

Kalm, Mart, 1961-

2004-01-01

23. IV 2004. a. tähistati Viljandis kauaaegse linna peaarhitekti Ott Puuraiu (1904-1986) 100. sünniaastapäeva. Esinesid Mart Kalm, Ülo Stöör ja arhitekti tütar Meeli Roosalu. Kondase keskuses avati O. Puuraiu projektide näitus, mille koostas tema lapselaps, arhitekt Priit Roosalu, kes oli ka kataloogi koostanud. Näituse koostamisel olid abiks Anne Lass ja Tarmo Maiste. O Puuraiu elust ja loomingust

Genome-wide identification of aquaporin encoding genes in Brassica oleracea and their phylogenetic sequence comparison to Brassica crops and Arabidopsis

Science.gov (United States)

Diehn, Till A.; Pommerrenig, Benjamin; Bernhardt, Nadine; Hartmann, Anja; Bienert, Gerd P.

2015-01-01

Aquaporins (AQPs) are essential channel proteins that regulate plant water homeostasis and the uptake and distribution of uncharged solutes such as metalloids, urea, ammonia, and carbon dioxide. Despite their importance as crop plants, little is known about AQP gene and protein function in cabbage (Brassica oleracea) and other Brassica species. The recent releases of the genome sequences of B. oleracea and Brassica rapa allow comparative genomic studies in these species to investigate the evolution and features of Brassica genes and proteins. In this study, we identified all AQP genes in B. oleracea by a genome-wide survey. In total, 67 genes of four plant AQP subfamilies were identified. Their full-length gene sequences and locations on chromosomes and scaffolds were manually curated. The identification of six additional full-length AQP sequences in the B. rapa genome added to the recently published AQP protein family of this species. A phylogenetic analysis of AQPs of Arabidopsis thaliana, B. oleracea, B. rapa allowed us to follow AQP evolution in closely related species and to systematically classify and (re-) name these isoforms. Thirty-three groups of AQP-orthologous genes were identified between B. oleracea and Arabidopsis and their expression was analyzed in different organs. The two selectivity filters, gene structure and coding sequences were highly conserved within each AQP subfamily while sequence variations in some introns and untranslated regions were frequent. These data suggest a similar substrate selectivity and function of Brassica AQPs compared to Arabidopsis orthologs. The comparative analyses of all AQP subfamilies in three Brassicaceae species give initial insights into AQP evolution in these taxa. Based on the genome-wide AQP identification in B. oleracea and the sequence analysis and reprocessing of Brassica AQP information, our dataset provides a sequence resource for further investigations of the physiological and molecular functions of

Initiation of a European Radiation Protection Training and Education Plataforma (EUTERP Platform)

International Nuclear Information System (INIS)

Steen, J. van der; Fraaisma, F. S.; Marco Arboli, M.

2004-01-01

The European Commission, D.-G. Transport and Energy, has launched an initiative to establish a European Radiation Protection Training and Education Platform. To this end, a feasibility study is being carried out at the moment. The objective of this feasibility study is to initiate the necessary steps towards the creation of the Platform. It will make recommendations, based on the summary and conclusions obtained as a result of the exchange of information and experience between all involved radiation protection training and education bodies. The project will identify how the future Platform should be initiated and developed in order to achieve the expected results. This paper describes the objectives of the study and the objectives, composition and possible structure of the EUTERP Platform. A workshop will be held from 20-21 May at CIEMAT, Madrid, to identify the work programme and possibilities for the structure of the Platform. The preliminary results of the workshop will be presented in this presentation. (Author)

Dialoog läbi seina / Mart Kangro, Jim Ashilevi

Index Scriptorium Estoniae

Kangro, Mart, 1974-

2016-01-01

Videoblogidest ehk vlogidest, internetist, videomeediumist, distantsist esineja ja publiku vahel, verbaalsest eneseväljandusest, lavastusprotsessist, füüsilisest teatrist ja muust. Mart Kangro ja Jim Ashilevi vestlus

The BioMart community portal: an innovative alternative to large, centralized data repositories

Science.gov (United States)

Smedley, Damian; Haider, Syed; Durinck, Steffen; Pandini, Luca; Provero, Paolo; Allen, James; Arnaiz, Olivier; Awedh, Mohammad Hamza; Baldock, Richard; Barbiera, Giulia; Bardou, Philippe; Beck, Tim; Blake, Andrew; Bonierbale, Merideth; Brookes, Anthony J.; Bucci, Gabriele; Buetti, Iwan; Burge, Sarah; Cabau, Cédric; Carlson, Joseph W.; Chelala, Claude; Chrysostomou, Charalambos; Cittaro, Davide; Collin, Olivier; Cordova, Raul; Cutts, Rosalind J.; Dassi, Erik; Genova, Alex Di; Djari, Anis; Esposito, Anthony; Estrella, Heather; Eyras, Eduardo; Fernandez-Banet, Julio; Forbes, Simon; Free, Robert C.; Fujisawa, Takatomo; Gadaleta, Emanuela; Garcia-Manteiga, Jose M.; Goodstein, David; Gray, Kristian; Guerra-Assunção, José Afonso; Haggarty, Bernard; Han, Dong-Jin; Han, Byung Woo; Harris, Todd; Harshbarger, Jayson; Hastings, Robert K.; Hayes, Richard D.; Hoede, Claire; Hu, Shen; Hu, Zhi-Liang; Hutchins, Lucie; Kan, Zhengyan; Kawaji, Hideya; Keliet, Aminah; Kerhornou, Arnaud; Kim, Sunghoon; Kinsella, Rhoda; Klopp, Christophe; Kong, Lei; Lawson, Daniel; Lazarevic, Dejan; Lee, Ji-Hyun; Letellier, Thomas; Li, Chuan-Yun; Lio, Pietro; Liu, Chu-Jun; Luo, Jie; Maass, Alejandro; Mariette, Jerome; Maurel, Thomas; Merella, Stefania; Mohamed, Azza Mostafa; Moreews, Francois; Nabihoudine, Ibounyamine; Ndegwa, Nelson; Noirot, Céline; Perez-Llamas, Cristian; Primig, Michael; Quattrone, Alessandro; Quesneville, Hadi; Rambaldi, Davide; Reecy, James; Riba, Michela; Rosanoff, Steven; Saddiq, Amna Ali; Salas, Elisa; Sallou, Olivier; Shepherd, Rebecca; Simon, Reinhard; Sperling, Linda; Spooner, William; Staines, Daniel M.; Steinbach, Delphine; Stone, Kevin; Stupka, Elia; Teague, Jon W.; Dayem Ullah, Abu Z.; Wang, Jun; Ware, Doreen; Wong-Erasmus, Marie; Youens-Clark, Ken; Zadissa, Amonida; Zhang, Shi-Jian; Kasprzyk, Arek

2015-01-01

The BioMart Community Portal (www.biomart.org) is a community-driven effort to provide a unified interface to biomedical databases that are distributed worldwide. The portal provides access to numerous database projects supported by 30 scientific organizations. It includes over 800 different biological datasets spanning genomics, proteomics, model organisms, cancer data, ontology information and more. All resources available through the portal are independently administered and funded by their host organizations. The BioMart data federation technology provides a unified interface to all the available data. The latest version of the portal comes with many new databases that have been created by our ever-growing community. It also comes with better support and extensibility for data analysis and visualization tools. A new addition to our toolbox, the enrichment analysis tool is now accessible through graphical and web service interface. The BioMart community portal averages over one million requests per day. Building on this level of service and the wealth of information that has become available, the BioMart Community Portal has introduced a new, more scalable and cheaper alternative to the large data stores maintained by specialized organizations. PMID:25897122

Evaluating the quality of life of people with profound and multiple disabilities: Use of the San Martín Scale at the Obra San Martín Foundation

Directory of Open Access Journals (Sweden)

Irene Hierro Zorrilla

2015-06-01

Full Text Available The San Martín Scale is an instrument used to measure the quality of life of people with significant disabilities with adequate levels reliability and validity. In 2012, the San Martín Scale was administered to 85 adults with intellectual disabilities who were provided supports at Obra San Martin Foundation (Santander. In this article, we describe the results obtained at the mesosystem level, an example at the microsystem level, and future areas of work identified from the results.

Text data extraction for a prospective, research-focused data mart: implementation and validation

Directory of Open Access Journals (Sweden)

Hinchcliff Monique

2012-09-01

Full Text Available Abstract Background Translational research typically requires data abstracted from medical records as well as data collected specifically for research. Unfortunately, many data within electronic health records are represented as text that is not amenable to aggregation for analyses. We present a scalable open source SQL Server Integration Services package, called Regextractor, for including regular expression parsers into a classic extract, transform, and load workflow. We have used Regextractor to abstract discrete data from textual reports from a number of ‘machine generated’ sources. To validate this package, we created a pulmonary function test data mart and analyzed the quality of the data mart versus manual chart review. Methods Eleven variables from pulmonary function tests performed closest to the initial clinical evaluation date were studied for 100 randomly selected subjects with scleroderma. One research assistant manually reviewed, abstracted, and entered relevant data into a database. Correlation with data obtained from the automated pulmonary function test data mart within the Northwestern Medical Enterprise Data Warehouse was determined. Results There was a near perfect (99.5% agreement between results generated from the Regextractor package and those obtained via manual chart abstraction. The pulmonary function test data mart has been used subsequently to monitor disease progression of patients in the Northwestern Scleroderma Registry. In addition to the pulmonary function test example presented in this manuscript, the Regextractor package has been used to create cardiac catheterization and echocardiography data marts. The Regextractor package was released as open source software in October 2009 and has been downloaded 552 times as of 6/1/2012. Conclusions Collaboration between clinical researchers and biomedical informatics experts enabled the development and validation of a tool (Regextractor to parse, abstract and assemble

José Martí e a educação popular: um retorno às fontes José Martí and popular education: a return to the sources

Directory of Open Access Journals (Sweden)

Danilo R. Streck

2008-04-01

Full Text Available Este artigo apresenta uma leitura de José Martí como fonte histórica da educação popular na América Latina. Parte-se do pressuposto de que não pode haver uma verdadeira refundamentação sem o retorno àquilo que sejam momentos, idéias ou princípios fundantes da educação popular. Após situar brevemente o pensamento e a obra de José Martí, caracteriza-se o conceito de educação popular como educação do povo, no sentido de educação universal. Num outro nível, busca-se identificar na obra de Martí traços da educação popular como um movimento político-pedagógico que se configura especialmente a partir da segunda metade do século passado. A premissa é que, num dado momento, educação do povo e educação popular deixam de ser termos equivalentes e que, em José Martí, temos elementos para pensar esses dois termos de forma dialética, num movimento de recriação de uma prática que, embora cindida pelas contingências históricas, é única. São identificados em sua obra quatro princípios da educação popular: a valorização da pluralidade de saberes; a relação interpessoal como ambiente para o aprender-ensinar e base para a transformação social; o conhecimento da realidade a partir de uma perspectiva emancipatória como ato político; e a educação como processo autoformativo da sociedade.This article presents José Martí as a historical source of popular education in Latin America. It starts from the assumption that there can be no true re-foundation without the return to those founding moments, ideas or principles of popular education. After giving a brief account of Martí's work and thought, we characterize the concept of popular education as education of the people, in the sense of a universal education. On a different level, we seek to identify in Martí's work elements of popular education as a political-pedagogical movement that takes shape especially since the latter half of the 20th century. The

Two new similar alkaloids from Portulaca oleracea L.

Science.gov (United States)

Li, Cuiyu; Ying, Zheming; Gao, Mingzhe; Wei, Wenjuan; Hao, Dong; Xu, Liang; Tao, Xiaojun; Zhang, Wenjie; Ying, Xixiang; Liu, Jing

2017-08-01

Two novel alkaloids named oleraciamide A (1) and oleraciamide B (2) were isolated from Portulaca oleracea L., and spectroscopic methods including 1D and 2D nuclear magnetic resonance and high-resolution electrospray ionisation quadrupole-time of flight mass spectrometer spectrometry techniques are employed to determine their structures. Oleraciamide A (1) was evaluated no cytotoxicity at concentrations up to 80 μM over 72 h against human adipose-derived stem cells (hADSCs) by CCK-8 method.

Etnocentrismo, racismo y miedo: los indígenas y los incultos en Martí

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Jorge Camacho

2010-04-01

Full Text Available In the following article I return to the idea of ethnicity and liberalism in Latin America during the last part of the 19th century. I also discuss Martí’s view of the Indians after 1885, when his chronicles were fueled by the rhetoric of pro-indigenous groups such as the Friends of Indians Association. I propose to look at other ways in which Martí’s ethnocentric view of culture and race intertwined with his agenda of “defending” the Indians, especially in his essay “Nuestra América.” For that purpose I retrace some of my previous arguments and discuss other essays that have recently elaborated on Martí’s “other side”, the one that imposes on the Indians his own liberal agenda, and the vision of modernity that the elites were constructing in Latin America at the end of 19th century. In my previous articles I discussed Martí’s chronicles on the Guatemalan, Mexican and American Indians and here I will focus on the similarities between the positivists in Mexico and Martí’s emphasis on “scientific politics” as well as his fear that those that were at the lowest level of society could one day revolt against the republic and destroy the justice “accumulated in books.” For books symbolized for Martí the “lettered elite”, those that had power and exercised it to their own advantage. He talked about this fear in Mexico, and in his most famous essay he returned to it again with a somewhat different perspective, but still with the conviction that within a democracy everything could be solved and a revolt from the “unlettered” masses was not justified. I argue that even if “Nuestra América” meant a more positive view of the “Indian problem”, Martí still considers the Indians, the “gauchos” and the rest of the “incultos” as a threat. They were the natural ally of the “caudillos” that ruled for so long Latin America, charismatic caudillos such as Juan Manuel de Rosas.

Portulaca oleracea extract can inhibit nodule formation of colon cancer stem cells by regulating gene expression of the Notch signal transduction pathway.

Science.gov (United States)

Jin, Heiying; Chen, Li; Wang, Shuiming; Chao, Deng

2017-07-01

To investigate whether Portulaca oleracea extract affects tumor formation in colon cancer stem cells and its chemotherapy sensitivity. In addition, to analyze associated genetic changes within the Notch signal transduction pathway. Serum-free cultures of colon cancer cells (HT-29) and HT-29 cancer stem cells were treated with the chemotherapeutic drug 5-fluorouracil to assess sensitivity. Injections of the stem cells were also given to BALB/c mice to confirm tumor growth and note its characteristics. In addition, the effect of different concentrations of P. oleracea extract was tested on the growth of HT-29 colon cancer cells and HT-29 cancer stem cells, as determined by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide method. The effects of P. oleracea extract on the expression of β-catenin, Notch1, and Notch2 in the HT-29 cells were studied using reverse transcription polymerase chain reaction and Western blotting. The tumor volume of the HT29 cells was two times larger than that of HT29 cancer stem cells. Treatment with P. oleracea extract inhibited the proliferation of both HT-29 cancer cells and HT-29 cancer stem cells at doses from 0.07 to 2.25 µg/mL. Apoptosis of HT-29 cancer cells and HT-29 cancer stem cells was assessed by flow cytometry; it was enhanced by the addition of P. oleracea extract. Finally, treatment with P. oleracea extract significantly downregulated the expression of the Notch1 and β-catenin genes in both cell types. The results of this study show that P. oleracea extract inhibits the growth of colon cancer stem cells in a dose-dependent manner. Furthermore, it inhibits the expression of the Notch1 and β-catenin genes. Taken together, this suggests that it may elicit its effects through regulatory and target genes that mediate the Notch signal transduction pathway.

Ionizing radiation affects generation of MART-1-specific cytotoxic T cell responses by dendritic cells

International Nuclear Information System (INIS)

Liao, Y.P.; Wang, C.-C.; McBride, W.H.

2003-01-01

Full text: The human MART-1/Melan-A (MART-1) melanoma tumor antigen is known to be recognized by cytotoxic T lymphocytes (CTLs) and several groups are using this target for clinical immunotherapy. Most approaches use dendritic cells (DCs) that are potent antigen presentation cells for initiating CTL responses. In order for CTL recognition to occur, DCs must display 9-residue antigenic peptides on MHC class I molecules. These peptides are generated by proteasome degradation and then transported through the endoplasmic reticulum to the cell surface where they stabilize MHC class I expression. Our previous data showed that irradiation inhibits proteasome function and, therefore, we hypothesized that irradiation may inhibit antigen processing and CTL activation, as has been shown for proteasome inhibitors. To study the importance of irradiation effects on DCs, we studied the generation MART-1-specific CTL responses. Preliminary data showed that irradiation of murine bone marrow derived DCs did not affect expression of MHC class I, II, CD80, or CD86, as assessed by flow cytometric analyses 24-hour after irradiation. The effect of irradiation on MART-1 antigen processing by DCs was evaluated using DC transduced with adenovirus MART-1 (AdVMART1). C57BL/6 mice were immunized with AdVMART1 transduced DCs, with and without prior irradiation. IFN-γ production was measured by ELISPOT assays after 10-14 days of immunization. Prior radiation treatment resulted in a significant decrease in MART-1-specific T cell responses. The ability of irradiated and non-irradiated AdVMART1/DC vaccines to protect mice against growth of murine B16 tumors, which endogenously express murine MART-1, was also examined. AdVMART1/DC vaccination protected C57BL/6 mice against challenge with viable B16 melanoma cells while DCs irradiated (10 Gy) prior to AdVMART1 transduction abrogated protection. These results suggest that proteasome inhibition in DCs by irradiation may be a possible pathway in

Neuroprotective effect of Portulaca oleracea extracts against 6-hydroxydopamine-induced lesion of dopaminergic neurons

Directory of Open Access Journals (Sweden)

WALESKA B. MARTINS

2016-01-01

Full Text Available ABSTRACT The Portulaca oleracea L. (Portulacaceae is a cosmopolitan species with a wide range of biological activities, including antioxidant and neuroprotective actions. We investigated the effects of P. oleracea extracts in a 6-hydroxydopamine rat model of Parkinson's disease, a debilitating disorder without effective treatments. Chemical profiles of aqueous and ethanolic extracts of whole plant were analyzed by thin layer chromatography and the antioxidant activity was assessed by 2,2-diphenyl-1-picrilhidrazila method. Male Wistar rats received intrastriatal 6-hydroxydopamine and were treated with vehicle or extracts (oral, 200 and 400 mg/kg daily for two weeks. The behavioral open field test was conducted at days 1 and 15. Immunohistochemical analysis was performed 4 weeks after surgery to quantify tyrosine-hydroxylase cell counts in the substantia nigra pars compacta. Extracts presented antioxidant activity in concentrations above 300 µg/kg. The chromatographic analysis revealed the presence of Levodopa, alkaloids, flavonoids, saponins, tannins, terpenoids and polysaccharides. Both extracts improved motor recovery 15 days after lesion and protected from tyrosine-hydroxylase cell loss after 4 weeks, but these effects were more evident for the aqueous extract. Because the dopamine precursor is present, in addition to antioxidant compounds and neuroprotective effects, P. oleracea can be considered as potential strategy for treating Parkinson's disease.

Neuroprotective effect of Portulaca oleracea extracts against 6-hydroxydopamine-induced lesion of dopaminergic neurons.

Science.gov (United States)

Martins, Waleska B; Rodrigues, Sheyla A; Silva, Hatamy K; Dantas, Camila G; Júnior, Waldecy DE Lucca; Filho, Lauro Xavier; Cardoso, Juliana C; Gomes, Margarete Z

2016-09-01

The Portulaca oleracea L. (Portulacaceae) is a cosmopolitan species with a wide range of biological activities, including antioxidant and neuroprotective actions. We investigated the effects of P. oleracea extracts in a 6-hydroxydopamine rat model of Parkinson's disease, a debilitating disorder without effective treatments. Chemical profiles of aqueous and ethanolic extracts of whole plant were analyzed by thin layer chromatography and the antioxidant activity was assessed by 2,2-diphenyl-1-picrilhidrazila method. Male Wistar rats received intrastriatal 6-hydroxydopamine and were treated with vehicle or extracts (oral, 200 and 400 mg/kg) daily for two weeks. The behavioral open field test was conducted at days 1 and 15. Immunohistochemical analysis was performed 4 weeks after surgery to quantify tyrosine-hydroxylase cell counts in the substantia nigra pars compacta. Extracts presented antioxidant activity in concentrations above 300 µg/kg. The chromatographic analysis revealed the presence of Levodopa, alkaloids, flavonoids, saponins, tannins, terpenoids and polysaccharides. Both extracts improved motor recovery 15 days after lesion and protected from tyrosine-hydroxylase cell loss after 4 weeks, but these effects were more evident for the aqueous extract. Because the dopamine precursor is present, in addition to antioxidant compounds and neuroprotective effects, P. oleracea can be considered as potential strategy for treating Parkinson's disease.

The immunodominant HLA-A2-restricted MART-1 epitope is not presented on the surface of many melanoma cell lines

DEFF Research Database (Denmark)

Sørensen, Rikke Baek; Junker, Niels; Kirkin, Alexei

2009-01-01

Among the relatively large number of known tumor-associated antigens (TAA) which are recognized by human CD8 T-cells, Melan-A/MART-1 is one of the most-if not the most-frequently used target for anti-cancer vaccines in HLA-A2 + melanoma patients. In this study, we analyzed the killing of a large...... panel of melanoma cells by a high avidity, MART-1-specific T-cell clone or a MART-1-specific, polyclonal T-cell culture. Strikingly, we observed that the MART-1-specific T-cells only killed around half of the analyzed melanoma cell lines. In contrast a Bcl-2-specific T-cell clone killed all melanoma...... cell lines, although the T-cell avidity of this clone was significantly lower. The MART-1-specific T-cell clone expressed NKG-2D and was fully capable of releasing both perforin and Granzyme B. Notably, the resistance to killing by the MART-1-specific T-cells could be overcome by pulsing...

"Dateline NBC"'s Persuasive Attack on Wal-Mart.

Science.gov (United States)

Benoit, William L.; Dorries, Bruce

1996-01-01

Develops a typology of persuasive attack strategies. Identifies two key components of persuasive attack: responsibility and offensiveness. Describes several strategies for intensifying each of these elements. Applies this analysis to "Dateline NBC"'s allegations that Wal-Mart's "Buy American" campaign was deceptive. Concludes…

José Martí entre los Hilos Ocultos del Reformismo Cubano

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María Caridad Pacheco González

2015-09-01

Full Text Available Este artículo discute hasta qué punto, tras la muerte de Martí, se generaliza en la isla de Cuba el desconocimiento de su obra literaria, la oposición a su pensamiento político y en consecuencia, un abandono a su discurso revolucionario y popular. Se describe el proceso con el que se generalizan las contradicciones entre los independentistas, en medio de la recuperación de su legado a manos de los emigrados. Luego de décadas de debates, se presentan las manifestaciones que exaltan su lucha nacionalista, la difusión de sus obras y la defensa de sus postulados e ideas, convirtiéndose los criterios martianos en la base ideológica de la nación cubana y del reformismo, en su tránsito de colonia a república.   This article discusses the extent to which, after his death, the literary output of José Martí became generally unknown, opposition to his political thought as well, resulting in the abandonment of his popular and revolutionary discourse. The contradictions among those in favor of Cuban independence is examined, with the recovery of Martí’s legacy left to emigrants. After decades of debate, praise of his nationalist struggle reappears, along with the diffusion of his oeuvre and the defense of his propositions and ideas, transforming the tenets of Martí’s thought into the ideological base of Cuban nationalism and reform, in the island's transition from colony to republic.

The effects of hydroalcoholic extract of Portulaca Oleracea on the serum concentreation of Hepatic enzymes in Rats

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Ali Zarei

2014-11-01

Full Text Available Background Hyperlipidemia can be cause a variety of diseases such as atherosclerosis, diabetes and fatty liver and subsequent liver enzyme increases. The Portulaca Oleracea plant has hypoglycemic and hypolipidemic properties. Therefore, in this study the effect of Portulca Oleracea herb extract on serum liver enzymes including aspartate aminotransferase (SGOT or AST, alanine aminotransferase (SGPT or ALT and alkaline phosphatase (ALP in rats were studied. Materials and Methods: In this experimental study, 60 Wistar rats were divided into 6 groups (n=10. Control group with normal diet, fat diet group and other groups, the experimental group received the same diet plus fat Portulaca oleracea extract maximum dose (800, the mean dose of (400, and a minimum dose of (200 mg / kg or intraperitoneally injection (ip and sort of Atorvastatin (10 mg kg. After the end of this period (21 days, blood sampling was performed and collected data were analyzed using the t and Tukey test, and SPSS software version 11.5. Results Comparison of statistical results indicated that alanine aminotransferase (ALT and Alkaline phosphatase (ALP increase in the control group that received only fatty foods, while the experimental groups received extract of Portulaca Oleracea, and groups receiving Atorvastatin had reduced levels of liver enzymes. Conclusion: Regarding hypoglycemic and hypolipidemic antioxidant activity of the extract and its effect on reducing liver enzymes, plant extracts can be recommended to improve liver function.

Diversidad, patrones de uso y conservación de palmas Arecaceae en bosques pluviales del Chocó, Colombia

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Hamleth Valois-Cuesta

2013-12-01

Full Text Available La familia Arecaceae es rica en especies, principalmente en el trópico, y constituye una fuente de recursos para la subsistencia de sus pobladores. En el presente trabajo se estudió la riqueza, diversidad, composición y patrones de uso de la familia Arecaceae en tres localidades de la cuenca media del río Atrato en el Chocó, Colombia, con el fin de obtener información que permita su conservación y uso sostenible. Se registraron 29 especies en 18 géneros, siendo Bactris 24.13 y Wettinia 10.34 los géneros más ricos en especies. El Buey mostró más especies y géneros 23 especies, 17 géneros que Beté 15 y 10 respectivamente y Tanguí 14 y 11 respectivamente. La similitud florística entre localidades fue menor al 45. Las especies con mayor peso ecológico y valor de uso fueron: Euterpe oleracea Mart., Oenocarpus bataua Mart., Attalea allennii H.E. Moore, Manicaria saccifera Gaertn., Bactris gassipaes Kunth y Wettinia quinaria O.F.Cook y Doyle R. Bernal. Las categorías de uso con mayor riqueza de especies e importancia cultural fueron: construcción, alimento y uso artesanal; y los órganos más usados fueron tallos y frutos. Los resultados de este trabajo demuestran que el Atrato Medio posee alta riqueza y diversidad de especies de palmas en un contexto regional y nacional. Sin embargo, la relación entre el número de uso y la importancia ecológica de la especie depende de la localidad, lo que indica que la importancia socio-cultural de la especie puede variar entre grupos humanos que comparten una misma cultura o región biogeográfica. Se publicarán estudios a futuro para determinar el papel del tipo de órgano utilizado como materia prima en la demografía y dinámica ecológica de las poblaciones de palma en el Chocó y otras regiones del Neotrópico.

Wal-Mart's Successfully Integrated Supply Chain and the Necessity of Establishing the Triple-A supply Chain in the 21st century

OpenAIRE

Ha Nguyen Thi Thu

2017-01-01

Aim/purpose - The main purposes of the paper are to analyze features creating a Wal-Mart's successful integrated supply chain that contributes its dominant position in the retail market and identify issues existing in Wal-Mart's supply chain. Then some suggestions will be mentioned for Wal-Mart to establish the Triple-A supply chain. Methodology - This paper is based on literature studies for reviewing Wal-Mart's integrated supply chain and designing an ideal Triple-A supply chain. Findings -...

Immunizing Patients With Metastatic Melanoma Using Recombinant Adenoviruses Encoding MART-1 or gp100 Melanoma Antigens

Science.gov (United States)

Rosenberg, Steven A.; Zhai, Yifan; Yang, James C.; Schwartzentruber, Douglas J.; Hwu, Patrick; Marincola, Francesco M.; Topalian, Suzanne L.; Restifo, Nicholas P.; Seipp, Claudia A.; Einhorn, Jan H.; Roberts, Bruce; White, Donald E.

2008-01-01

Background: The characterization of the genes encoding melanoma-associated antigens MART-1 or gp100, recognized by T cells, has opened new possibilities for the development of immunization strategies for patients with metastatic melanoma. With the use of recombinant adenoviruses expressing either MART-1 or gp100 to immunize patients with metastatic melanoma, we evaluated the safety, immunologic, and potential therapeutic aspects of these immunizations. Methods: In phase I studies, 54 patients received escalating doses (between 107 and 1011 plaque-forming units) of recombinant adenovirus encoding either MART-1 or gp100 melanoma antigen administered either alone or followed by the administration of interleukin 2 (IL-2). The immunologic impact of these immunizations on the development of cellular and antibody reactivity was assayed. Results: Recombinant adenoviruses expressing MART-1 or gp100 were safely administered. One of 16 patients with metastatic melanoma receiving the recombinant adenovirus MART-1 alone experienced a complete response. Other patients achieved objective responses, but they had received IL-2 along with an adenovirus, and their responses could be attributed to the cytokine. Immunologic assays showed no consistent immunization to the MART-1 or gp100 transgenes expressed by the recombinant adenoviruses. High levels of neutralizing antibody were found in the pretreatment sera of the patients. Conclusions: High doses of recombinant adenoviruses could be safely administered to cancer patients. High levels of neutralizing antibody present in patients' sera prior to treatment may have impaired the ability of these viruses to immunize patients against melanoma antigens. PMID:9862627

Dokumentationsprojektet: Kommunernes omstilling til øget inklusion pr. marts 2014

DEFF Research Database (Denmark)

Dyssegaard, Camilla Brørup; Baviskar, Siddhartha; Lausten, Mette

Denne rapport udgør en redegørelse for status på inklusionsprocessen i tolv danske kommuner pr. marts 2014. Den samlede undersøgelse, der går under navnet "Dokumentationsprojektet", løber i tre år og blev givet til et konsortium bestående af Aarhus Universitet og SFI den 16. januar 2013.......Denne rapport udgør en redegørelse for status på inklusionsprocessen i tolv danske kommuner pr. marts 2014. Den samlede undersøgelse, der går under navnet "Dokumentationsprojektet", løber i tre år og blev givet til et konsortium bestående af Aarhus Universitet og SFI den 16. januar 2013....

Concordia elas tuleviku arvelt / Mart Susi ; interv. Krister Kivi

Index Scriptorium Estoniae

Susi, Mart, 1965-

2003-01-01

Ilmunud ka: Infopress 21. märts nr. 12 lk. 30-31. Concordia Ülikooli rektor Mart Susi räägib kooli senisest juhtimisest ning asjaoludest, mis on põhjustanud pankroti. Tabel: Concordia kronoloogia

Numerical Simulations to Assess ART and MART Performance for Ionospheric Tomography of Chapman Profiles.

Science.gov (United States)

Prol, Fabricio S; Camargo, Paulo O; Muella, Marcio T A H

2017-01-01

The incomplete geometrical coverage of the Global Navigation Satellite System (GNSS) makes the ionospheric tomographic system an ill-conditioned problem for ionospheric imaging. In order to detect the principal limitations of the ill-conditioned tomographic solutions, numerical simulations of the ionosphere are under constant investigation. In this paper, we show an investigation of the accuracy of Algebraic Reconstruction Technique (ART) and Multiplicative ART (MART) for performing tomographic reconstruction of Chapman profiles using a simulated optimum scenario of GNSS signals tracked by ground-based receivers. Chapman functions were used to represent the ionospheric morphology and a set of analyses was conducted to assess ART and MART performance for estimating the Total Electron Content (TEC) and parameters that describes the Chapman function. The results showed that MART performed better in the reconstruction of the electron density peak and ART gave a better representation for estimating TEC and the shape of the ionosphere. Since we used an optimum scenario of the GNSS signals, the analyses indicate the intrinsic problems that may occur with ART and MART to recover valuable information for many applications of Telecommunication, Spatial Geodesy and Space Weather.

MARTe framework; a middle-ware for real-time applications development

International Nuclear Information System (INIS)

Neto, A.; Alves, D.; Carvalho, B.B.; Carvalho, P.J.; Fernandes, H.; Valcarcel, D.F.; Sartori, F.; Barbalace, A.; Manduchi, G.; Boncagni, L.; Tommasi, G. de; McCullen, P.; Stephen, A.; Vitelli, R.; Zabeo, L.

2012-01-01

The Multi-threaded Application Real-Time executor (MARTe) is a C++ framework that provides a development environment for the design and deployment of real-time applications, e.g. control systems. The kernel of MARTe comprises a set of data-driven independent blocks, connected using a shared bus. This modular design enforces a clear boundary between algorithms, hardware interaction and system configuration. The architecture, being multi-platform, facilitates the test and commissioning of new systems, enabling the execution of plant models in offline environments and with the hardware-in-the-loop, whilst also providing a set of non-intrusive introspection and logging facilities. Furthermore, applications can be developed in non real-time environments and deployed in a real-time operating system, using exactly the same code and configuration data. The framework is already being used in several fusion experiments, with control cycles ranging from 50 microseconds to 10 milliseconds exhibiting jitters of less than 2%, using VxWorks R , RTAI or Linux. Codes can also be developed and executed in Microsoft Windows R and Solaris R . This paper discusses the main design concepts of MARTe, in particular the architectural choices which enabled the combination of real-time accuracy, performance and robustness with complex and modular data driven applications. (authors)

Subgenome parallel selection is associated with morphotype diversification and convergent crop domestication in Brassica rapa and Brassica oleracea.

Science.gov (United States)

Cheng, Feng; Sun, Rifei; Hou, Xilin; Zheng, Hongkun; Zhang, Fenglan; Zhang, Yangyong; Liu, Bo; Liang, Jianli; Zhuang, Mu; Liu, Yunxia; Liu, Dongyuan; Wang, Xiaobo; Li, Pingxia; Liu, Yumei; Lin, Ke; Bucher, Johan; Zhang, Ningwen; Wang, Yan; Wang, Hui; Deng, Jie; Liao, Yongcui; Wei, Keyun; Zhang, Xueming; Fu, Lixia; Hu, Yunyan; Liu, Jisheng; Cai, Chengcheng; Zhang, Shujiang; Zhang, Shifan; Li, Fei; Zhang, Hui; Zhang, Jifang; Guo, Ning; Liu, Zhiyuan; Liu, Jin; Sun, Chao; Ma, Yuan; Zhang, Haijiao; Cui, Yang; Freeling, Micheal R; Borm, Theo; Bonnema, Guusje; Wu, Jian; Wang, Xiaowu

2016-10-01

Brassica species, including crops such as cabbage, turnip and oilseed, display enormous phenotypic variation. Brassica genomes have all undergone a whole-genome triplication (WGT) event with unknown effects on phenotype diversification. We resequenced 199 Brassica rapa and 119 Brassica oleracea accessions representing various morphotypes and identified signals of selection at the mesohexaploid subgenome level. For cabbage morphotypes with their typical leaf-heading trait, we identified four subgenome loci that show signs of parallel selection among subgenomes within B. rapa, as well as four such loci within B. oleracea. Fifteen subgenome loci are under selection and are shared by these two species. We also detected strong subgenome parallel selection linked to the domestication of the tuberous morphotypes, turnip (B. rapa) and kohlrabi (B. oleracea). Overall, we demonstrated that the mesohexaploidization of the two Brassica genomes contributed to their diversification into heading and tuber-forming morphotypes through convergent subgenome parallel selection of paralogous genes.

The anti-inflammation and pharmacokinetics of a novel alkaloid from Portulaca oleracea L.

Science.gov (United States)

Meng, Yihan; Ying, Zheming; Xiang, Zheng; Hao, Dong; Zhang, Wenjie; Zheng, Yu; Gao, Yucong; Ying, Xixiang

2016-03-01

This study was to elucidate the pharmacokinetics of a novel alkaloid, 6-acetyl-2,2,5-trimethyl-2,3-dihydrocyclohepta[b]pyrrol-8(1H)-one, named oleracone isolated from Portulaca oleracea L., and to examine the anti-inflammatory ability with lipopolysaccharide (LPS) stimulated macrophages. The novel alkaloid, oleracone, was isolated from Portulaca oleracea L., and its structure was determined by spectroscopic analysis including HRESIMS, 2D NMR spectroscopic data and single-crystal X-ray diffraction. The activity of anti-inflammation was assayed via the test with RAW 264.7 activated by LPS, and the pharmacokinetics of oleracone in rat plasma after intravenous and oral administration at dose of 2.5 mg/kg was, respectively, investigated by a rapid and sensitive ultra high-performance liquid chromatography (UHPLC) method with bergapten as internal standard. Oleracone was a novel alkaloid first isolated from Portulaca oleracea L. and possessed unique structure in natural products, whose anti-inflammatory effecting on nitrite oxide production and several pivotal pro-inflammatory cytokines was found at the concentration of 50 μm, and the pharmacokinetic results indicated that oleracone was rapidly distributed with Tmax of 15.7 min after oral administration and presented a higher oral absolute bioavailability to be 74.91 ± 10.7%. Oleracone as novel alkaloid presented remarkably anti-inflammatory effect, which was rapid distributed in rat with high bioavailability of 74.91 ± 10.7%. © 2016 Royal Pharmaceutical Society, Journal of Pharmacy and Pharmacology.

Phytohormone profile in Lactuca sativa and Brassica oleracea plants grown under Zn deficiency.

Science.gov (United States)

Navarro-León, Eloy; Albacete, Alfonso; Torre-González, Alejandro de la; Ruiz, Juan M; Blasco, Begoña

2016-10-01

Phytohormones, structurally diverse compounds, are involved in multiple processes within plants, such as controlling plant growth and stress response. Zn is an essential micronutrient for plants and its deficiency causes large economic losses in crops. Therefore, the purpose of this study was to analyse the role of phytohormones in the Zn-deficiency response of two economically important species, i.e. Lactuca sativa and Brassica oleracea. For this, these two species were grown hydroponically with different Zn-application rates: 10 μM Zn as control and 0.1 μM Zn as deficiency treatment and phytohormone concentration was determined by U-HPLC-MS. Zn deficiency resulted in a substantial loss of biomass in L. sativa plants that was correlated with a decline in growth-promoting hormones such as indole-3-acetic acid (IAA), cytokinins (CKs), and gibberellins (GAs). However these hormones increased or stabilized their concentrations in B. oleracea and could help to maintain the biomass in this species. A lower concentration of stress-signaling hormones such as ethylene precursor aminocyclopropane-1-carboxylic acid (ACC), abscisic acid (ABA), salicylic acid (SA) and jasmonic acid (JA) and also CKs might be involved in Zn uptake in L. sativa while a rise in GA4, isopentenyl adenine (iP), and ACC and a fall in JA and SA might contribute to a better Zn-utilization efficiency (ZnUtE), as observed in B. oleracea plants. Copyright © 2016 Elsevier Ltd. All rights reserved.

Hebrew Hermeneutics and Inquisitorial Persecution: The Case of The Hebraist from Salamanca Martín Martínez de Cantalapiedra (XVI^th Century

Directory of Open Access Journals (Sweden)

Ricardo Muñoz Solla

2016-12-01

Full Text Available

Halfway through the 16th century in Spain the reading and interpretation of the Bible based on its original languages involved a very real danger for humanists who were seeking a better understanding of the Scriptures. The exclusive authority of the Latin Vulgate version declared by the Council of Trent in 1546 hindered the intellectual work of many Biblicists and Theologians, who were subjected to tight ideological control. In this context it must be considered the case of the Hebraist and scholar from the University of Salamanca, Martín Martínez de Cantalapiedra (1518-1579, who was prosecuted by the Inquisition of Valladolid in 1572 along with his colleagues Fray Luis de León and Gaspar de Grajal. All of them were accused of deviating from the genuine sense of the Vulgate in their more literal interpretations of the Masoretic text. The purpose of this article is to provide new evidence for the intellectual biography of Master Martínez de Cantalapiedra as well a to analyze the hermeneutical principles exposed during his inquisitorial in which he defended the Hebrew knowledge as an essential means of interpreting the Old Testament.

A Marte a través del cine. Ficción y realidad

OpenAIRE

Fernández-Alonso, M. Carmen; Platón, María

2016-01-01

Cartel anunciador de la charla; Presentación del ciclo de charlas “Jam Science-Divulgación Científica” celebradas en el Moe Club (Alberto Alcocer, 32, Madrid) el penúltimo martes de cada mes de 20.00 a 22.00h, desde enero de 2015. Ponente:Dr. Jesús Martínez Frías-Instituto de Geociencias IGEO (CSIC-UCM).Grabación y edición de los vídeos: DC SciComm

A seed treatment to prevent shoot apical meristem arrest in Brassica oleracea

NARCIS (Netherlands)

Jonge, de J.; Goffman, Fernando D.; Kodde, J.; Angenent, G.C.; Groot, S.P.C.

2018-01-01

Brassica oleracea plants can suffer from shoot apical meristem arrest, when sown at cold temperatures, giving rise to so-called blind seedlings that stop development and the formation of new leaves. We developed a seed treatment that strongly reduces the occurrence of this meristem arrest in

Substâncias ergásticas foliares de espécies amazônicas de Oenocarpus Mart. (Arecaceae: caracterização histoquímica e ultra-estrutural Leaf ergastic substances of Amazonian species of Oenocarpus Mart. (Arecaceae: histochemical and ultrastructural characterization

Directory of Open Access Journals (Sweden)

Rolf Junior Ferreira Silva

2009-01-01

Full Text Available O presente estudo teve por objetivo diagnosticar e caracterizar as substâncias ergásticas foliares de Oenocarpus bacaba Mart., O. distichus Mart., O. mapora H. Karst. e O. minor Mart. através de microscopias óptica e eletrônica de varredura, análises histoquímicas e microanálises físicas. Secções transversais e longitudinais, assim como maceração foram realizadas em material botânico fixado. As análises histoquímicas foram empregadas em material botânico in natura, seguindo-se protocolos específicos para mucilagem, amido e sílica. Microanálises físicas foram feitas com Energy Dispersive Spectroscopy (EDS detector. Nas espécies estudadas de Oenocarpus Mart., as substâncias ergásticas foliares correspondem a mucilagem amorfa; grãos de amido poliédricos do tipo simples e sílica opalina sob a forma de corpos elípticos e esféricos-globosos de superfície espiculada, ambos com elevado teor de dióxido de silício. As observações microscópicas, os testes histoquímicos e as microanálises físicas permitiram diagnosticar, caracterizar e elucidar a estrutura e ultra-estrutura das substâncias ergásticas ocorrentes nas folhas dos táxons analisados de Oenocarpus Mart.The purpose of this study was to diagnose and characterize the leaf ergastic substance of Oenocarpus bacaba Mart., O. distichus Mart., O. mapora H. Karst. and O. minor Mart. by light and scanning electron microscopy, histochemical analyses and physical microanalyses. Transverse and longitudinal sections as well as maceration were made in fixed botanical material. The histochemical analyses were made in non-fixed botanical material, using specific tests for mucilage, starch and silica. An Energy Dispersive Spectroscopy (EDS detector was used for the physical microanalyses. In the Oenocarpus Mart. species studied, the leaf ergastic substances corresponded to amorphous mucilage, simple-type polyhedrical starch grain and opaline silica in the shape of elliptical

Florística e estrutura do estrato arbóreo de uma floresta de várzea no município de Santa Bárbara do Pará, Estado do Pará, Brasil Floristic and structure of tree communities in the floodplain forest on municipallity of Santa Bárbara do Pará, State of Pará, Brazil

Directory of Open Access Journals (Sweden)

Gideão Costa dos Santos

2006-12-01

Full Text Available Este estudo teve como objetivo conhecer a composição florística e a estrutura do estrato arbóreo de uma floresta de várzea na localidade de São José do Aracy, no município de Santa Bárbara do Pará, estado do Pará, Brasil. Foram instaladas quatro parcelas de 100 x 100 m subdivididas em cinco transectos de 20 x 100 m e foram amostradas as espécies arbóreas lenhosas e palmeiras. Para as espécies lenhosas adotou-se diâmetro à altura do peito (DAP ³ 10cm e para palmeiras a circunferência à altura do peito (CAP ³ 10cm e estimou-se a altura. O material botânico coletado foi identificado em nível de família, gênero e espécie, sendo incorporado ao herbário João Murça Pires do Museu Paraense Emílio Goeldi (MPEG. Na análise fitossociológica foram calculados os parâmetros de Densidade Relativa (DR%, Freqüência Relativa (FR%, Dominância Relativa (DOMR%, Índice de Valor de Importância (IVI, Índice de Valor de Cobertura (IVC, Índice de similaridade de Sorenson (S', Índice de diversidade de Shannon (H' e Equabilidade (E'. Os resultados mostraram 29 famílias, 58 gêneros e 70 espécies. As famílias com maior diversidade foram Caesalpiniaceae, Mimosaceae e Papilionaceae, com nove, oito e sete espécies, respectivamente; Arecaceae e Papilionaceae obtiveram maior densidade (27,75% e 25,84%; treze famílias foram mais freqüentes com 4,88% entre elas; Papilionaceae com maior dominância e índice de valor de importância (37,50% e 68,21; Euterpe oleracea Mart. apresentou maior densidade relativa e Pterocarpus officinalis Jacq., maior dominância relativa, maior índice de valor de importância e de cobertura. O índice de diversidade de 2,63 foi considerado baixo, com equabilidade de 0,63 e similaridade de 0,60. A várzea estudada apresentou baixa diversidade em espécies.This research has taken place in four of 100 x 100 m in São José do Aracy, in the municipallity of Santa Bárbara do Pará, State of Pará, Brazil. Each

Znat russkii jazõk polezno / Mart Laar ; interv. Viktor Sokolov

Index Scriptorium Estoniae

Laar, Mart, 1960-

2000-01-01

Peaminister Mart Laari intervjuu ajalehele "Nezavissimaja Gazeta" ئ vene keele kasutamisest Eestis, Eesti-Vene suhetest, liitumisest NATO-ga. Art. refereerib T. Kallas, PM Jan/7 lk. 11. Allikas: Nezavissimaja gazeta

Portulaca oleracea L.: A Review of Phytochemistry and Pharmacological Effects

OpenAIRE

Zhou, Yan-Xi; Xin, Hai-Liang; Rahman, Khalid; Wang, Su-Juan; Peng, Cheng; Zhang, Hong

2015-01-01

Portulaca oleracea L., belonging to the Portulacaceae family, is commonly known as purslane in English and Ma-Chi-Xian in Chinese. It is a warm-climate, herbaceous succulent annual plant with a cosmopolitan distribution. It is eaten extensively as a potherb and added in soups and salads around the Mediterranean and tropical Asian countries and has been used as a folk medicine in many countrie...

Aurelio Martínez Mutis

Directory of Open Access Journals (Sweden)

Rafaél Maya

1979-10-01

Full Text Available La aparición de Aurelio Martínez Mutis en el escenario de las letras colombianas, hace unos treinta y cinco años, más o menos, fue súbita y fulgurante. Su "Epopeya del Cóndor", poesía premiada en el concurso abierto por la revista Mundial, que dirigía en París Rubén Darío, lo hizo célebre, de la noche a la mañana, entre los pueblos de habla hispana.

Mart Sander ei tea oma saate tulevikku / Heili Sibrits

Index Scriptorium Estoniae

Sibrits, Heili, 1977-

2002-01-01

Muusikasaatest "Tähed muusikas". Mart Sanderi juhitav MTÜ Bel-Etage suurprojektidest 2002. aasta maist augustini: Sir Arthur Sullivani koomilisest ooperist "Trial by Jury" ("Vandekohus") ja Lionel Moncktoni muusikalist "The Arcadians" ("Arkaadlased"). Sander juhib BBC Eurovisioni-eelset saadet eesti muusikast

Correction to Three Novel Alkaloids from Portulaca oleracea L. and Their Anti-inflammatory Effects.

Science.gov (United States)

Li, Cui-Yu; Meng, Yi-Han; Ying, Zhe-Ming; Xu, Nan; Hao, Dong; Gao, Ming-Zhe; Zhang, Wen-Jie; Xu, Liang; Gao, Yu-Cong; Stien, Didier; Ying, Xi-Xiang

2017-02-01

Oleracimine and oleracimine A were isolated from Portulaca oleracea L. and described in the J. Agric. Food Chem, but the alternative structures of the two compounds are proposed on the basis of NMR analyses.

Effect of a health claim and personal characteristics on consumer acceptance of fruit juices with different concentrations of açaí (Euterpe oleracea Mart.).

Science.gov (United States)

Sabbe, Sara; Verbeke, Wim; Deliza, Rosires; Matta, Virginia; Van Damme, Patrick

2009-08-01

This study evaluates the effect of a health claim and personal characteristics on the acceptance of two unfamiliar açaí fruit juices that have a low (40% açaí) versus a high (4% açaí) a priori overall liking. Hedonic and sensory measures as well as health- and nutrition-related attribute perceptions and purchase intention were rated before and after health information was presented. Differences in information effects due to interactions with juice type, consumer background attitudes and socio-demographics were investigated. Providing health information yielded a positive, though rather small increase, in overall liking, perceived healthiness and perceived nutritional value of both juices, as well as in their purchase intention. Sensory experiences remained predominant in the acceptance of the fruit juices, although the health claim had a stronger effect on the perceived healthiness and nutritional value of the least-liked juice. Background attitudes and socio-demographic characteristics influenced consumers' acceptance of both unfamiliar fruit juices. Health-oriented consumers were more likely to compromise on taste for an eventual health benefit, though they still preferred the best tasting juice. Consumers with a high food neophobia reported a lower liking for both unfamiliar fruit juices. Older respondents and women were more likely to accept fruit juices that claim a particular health benefit.

Genetic parameters and selection gains for Euterpe oleracea in juvenile phase

Directory of Open Access Journals (Sweden)

João Tomé de Farias Neto

2012-09-01

Full Text Available Genetics parameters and selection gains, obtained 36 months after planting, are presented and discussed for progenies of open pollinated population of açai palm for plant height (AP, plant diameter (DPC, number of live leaves ( NFV and tiller number (NP, based on the linear mixed model methodology (REML / BLUP. The thirty progenies were evaluated in a randomized blocks design with three replications and plots of five plants, spaced at 6m x 4m. The values obtained for individual heritability (0.55, 0.44, 0.38 and 0.43 and for progeny means (0.64, 0.54, 0.58 and 0.64 for AP, DPC, NFV and NP, respectively, were expressives, which indicates the possibility of genetic progress with the selection. The accuracy among the genetics values predicted and the true were of 0.802 for height, 0.736 for diameter, 0.760 for number of live leaves and 0.797 for tiller number. With the exception of NFV character, the coefficients of individual genetic variation were high (>10%, confirming the potential of the population for selection. Predicted genetic gains of 89.3% were obtained for the character AP and 2.1% for DCP, with the selection of the twenty top individuals. Correlation was found between height and diameter of the plant. Among ages, for the same characters, positive correlations of mean magnitudes were found.

Review of Nuria del Campo Martínez: Illocutionary Constructions in English: Cognitive Motivation and Linguistic Realization (2013)

DEFF Research Database (Denmark)

Jensen, Kim Ebensgaard

2014-01-01

A review of Nuria del Campo Martínez: Illocutionary Constructions in English: Cognitive Motivation and Linguistic Realization (2013)......A review of Nuria del Campo Martínez: Illocutionary Constructions in English: Cognitive Motivation and Linguistic Realization (2013)...

Design and implementation of fishery rescue data mart system

Science.gov (United States)

Pan, Jun; Huang, Haiguang; Liu, Yousong

A novel data mart based system for fishery rescue field was designed and implemented. The system runs ETL process to deal with original data from various databases and data warehouses, and then reorganized the data into the fishery rescue data mart. Next, online analytical processing (OLAP) are carried out and statistical reports are generated automatically. Particularly, quick configuration schemes are designed to configure query dimensions and OLAP data sets. The configuration file will be transformed into statistic interfaces automatically through a wizard-style process. The system provides various forms of reporting files, including crystal reports, flash graphical reports, and two-dimensional data grids. In addition, a wizard style interface was designed to guide users customizing inquiry processes, making it possible for nontechnical staffs to access customized reports. Characterized by quick configuration, safeness and flexibility, the system has been successfully applied in city fishery rescue department.

Genetic diversity and population structure of Brassica oleracea germplasm in Ireland using SSR markers.

Science.gov (United States)

El-Esawi, Mohamed A; Germaine, Kieran; Bourke, Paula; Malone, Renee

2016-01-01

The most economically important Brassica oleracea species is endangered in Ireland, with no prior reported genetic characterization studies. This study assesses the genetic diversity, population structure and relationships of B. oleracea germplasm in Ireland using microsatellite (SSRs) markers. A total of 118 individuals from 25 accessions of Irish B. oleracea were genotyped. The SSR loci used revealed a total of 47 alleles. The observed heterozygosity (0.699) was higher than the expected one (0.417). Moreover, the average values of fixation indices (F) were negative, indicating excess of heterozygotes in all accessions. Polymorphic information content (PIC) values of SSR loci ranged from 0.27 to 0.66, with an average of 0.571, and classified 10 loci as informative markers (PIC>0.5) to differentiate among the accessions studied. The genetic differentiation among accessions showed that 27.1% of the total genetic variation was found among accessions, and 72.9% of the variation resided within accessions. The averages of total heterozygosity (H(T)) and intra-accession genetic diversity (H(S)) were 0.577 and 0.442, respectively. Cluster analysis of SSR data distinguished among kale and Brussels sprouts cultivars. This study provided a new insight into the exploitation of the genetically diverse spring cabbages accessions, revealing a high genetic variation, as potential resources for future breeding programs. SSR loci were effective for differentiation among the accessions studied. Copyright © 2016 Académie des sciences. Published by Elsevier SAS. All rights reserved.

Clinical effects of Portulaca oleracea seeds on dyslipidemia in obese adolescents: a triple-blinded randomized controlled trial.

Science.gov (United States)

Sabzghabaee, Ali Mohammad; Kelishadi, Roya; Jelokhanian, Hadi; Asgary, Sedigheh; Ghannadi, Alireza; Badri, Shirinsadat

2014-01-01

Childhood obesity is a major public health concern worldwide while the current epidemic may be secondary to over consumption of high-fat, energy-rich foods. Purslane (Portulaca oleracea L.) has been traditionally used in medicine for several antioxidant and anti-atherogenic activities. In this study the anti-dyslipidemic effects of Poleracea was evaluated in obese adolescents. In this triple-blinded randomized placebo-controlled clinical trial which was done from July 2011 to June 2012, obese adolescent patients whom were referred to the Isfahan Cardiovascular Research Institute (Iran) were randomly allocated to the two arms of cases and controls. The cases group was asked to take one capsule containing powdered P. oleracea seeds (500 milligrams) two times a day for one month, and the controls group were asked to take identical but placebo (lactose) capsules in the same way. Biochemical parameters including 12-hours fasting serum levels of total cholesterol, low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglycerides (TG) were measured before the initiation and after the completion of the study protocol. Total cholesterol, LDL-C, and TG showed statistically significant changes over time (one month) in the P. oleracea group (p < 0.05). However, between-group analysis using general linear model (multivariate) test revealed that the differences in the mentioned parameters between two study groups were statistically significant just for LDL-C and TG, while others did not differ significantly. P. oleracea L. may have positive effects on serum lipids profile which may be attributed to its polyphenolic and antioxidant compounds. This herbal drug seems to be well-tolerated in adolescent population as well. Further studies are recommended.

Analysis of Brassica oleracea early stage abiotic stress responses reveals tolerance in multiple crop types and for multiple sources of stress.

Science.gov (United States)

Beacham, Andrew M; Hand, Paul; Pink, David Ac; Monaghan, James M

2017-12-01

Brassica oleracea includes a number of important crop types such as cabbage, cauliflower, broccoli and kale. Current climate conditions and weather patterns are causing significant losses in these crops, meaning that new cultivars with improved tolerance of one or more abiotic stress types must be sought. In this study, genetically fixed B. oleracea lines belonging to a Diversity Fixed Foundation Set (DFFS) were assayed for their response to seedling stage-imposed drought, flood, salinity, heat and cold stress. Significant (P ≤ 0.05) variation in stress tolerance response was found for each stress, for each of four measured variables (relative fresh weight, relative dry weight, relative leaf number and relative plant height). Lines tolerant to multiple stresses were found to belong to several different crop types. There was no overall correlation between the responses to the different stresses. Abiotic stress tolerance was identified in multiple B. oleracea crop types, with some lines exhibiting resistance to multiple stresses. For each stress, no one crop type appeared significantly more or less tolerant than others. The results are promising for the development of more environmentally robust lines of different B. oleracea crops by identifying tolerant material and highlighting the relationship between responses to different stresses. © 2017 Society of Chemical Industry. © 2017 Society of Chemical Industry.

Portulaca oleracea Seed Oil Exerts Cytotoxic Effects on Human Liver Cancer (HepG2) and Human Lung Cancer (A-549) Cell Lines.

Science.gov (United States)

Al-Sheddi, Ebtesam Saad; Farshori, Nida Nayyar; Al-Oqail, Mai Mohammad; Musarrat, Javed; Al-Khedhairy, Abdulaziz Ali; Siddiqui, Maqsood Ahmed

2015-01-01

Portulaca oleracea (Family: Portulacaceae), is well known for its anti-inflammatory, antioxidative, anti- bacterial, and anti-tumor activities. However, cytotoxic effects of seed oil of Portulaca oleracea against human liver cancer (HepG2) and human lung cancer (A-549) cell lines have not been studied previously. Therefore, the present study was designed to investigate the cytotoxic effects of Portulaca oleracea seed oil on HepG2 and A-549 cell lines. Both cell lines were exposed to various concentrations of Portulaca oleracea seed oil for 24h. After the exposure, percentage cell viability was studied by (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) (MTT), neutral red uptake (NRU) assays, and cellular morphology by phase contrast inverted microscopy. The results showed a concentration-dependent significant reduction in the percentage cell viability and an alteration in the cellular morphology of HepG2 and A-549 cells. The percentage cell viability was recorded as 73%, 63%, and 54% by MTT assay and 76%, 61%, and 50% by NRU assay at 250, 500, and 1000 μg/ml, respectively in HepG2 cells. Percentage cell viability was recorded as 82%, 72%, and 64% by MTT assay and 83%, 68%, and 56% by NRU assay at 250, 500, and 1000 μg/ml, respectively in A-549 cells. The 100 μg/ml and lower concentrations were found to be non cytotoxic to A-549 cells, whereas decrease of 14% and 12% were recorded by MTT and NRU assay, respectively in HepG2 cells. Both HepG2 and A-549 cell lines exposed to 250, 500, and 1000 μg/ ml of Portulaca oleracea seed oil lost their normal morphology, cell adhesion capacity, become rounded, and appeared smaller in size. The data from this study showed that exposure to seed oil of Portulaca oleracea resulted in significant cytotoxicity and inhibition of growth of the human liver cancer (HepG2) and human lung cancer (A-549) cell lines.

"Nuestra América": José Martí ante la Razón Moderna

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Pedro Pablo Rodríguez

2015-09-01

Full Text Available Este artículo es un acercamiento al difícil y singular diálogo con el pensamiento moderno y sus procedimientos del escritor, pensador y político cubano José Martí. La tesis es que el ideario de Martí expresó los intereses y la perspectiva de los pueblos de Hispanoamérica, a la que llamó Nuestra América, por oposición, según escribió “a la otra América, que no es nuestra”. Plenamente consciente de que la identidad de la región se sustentaba en una cultura nueva, mestiza de lo aborigen y lo español, el cubano dedicó su ensayo “Nuestra América” a explicar los factores internos que mantenían las estructuras sociales, políticas y de pensamiento de la época colonial, así como el peligro que representaba el creciente poderío de Estados Unidos.   This article aims to approach Cuban writer, thinker and politician José Martí's harsh, singular dialogue with modern thinking and its procedures. It argues that Martí's set of ideas expressed the interests and viewpoint of the peoples of Hispanic America, which he called Our America, as opposed to, according to his own texts, "the other America, the one that is not ours". Fully conscious of the fact that the region's identity was based on a new culture, resulting from a mix of the indigenous and the Spanish, Martí used his essay "Our America" (originally, "Nuestra América" to explain the internal factors that maintained the colonial social, political and ideological structures, in addition to expressing the threat the growing power of the United States represented.

Los testimonios de Marte en la Meseta Meridional

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Julián Hurtado Aguña

2001-01-01

Full Text Available Marte, fue una de las más importantes divinidades romanas presentes en Híspanla. Dentro de la Meseta meridional sus testimonios aparecen en algunas localidades de la provincia de Madrid, como Alcalá de Henares, Talamanca del Jarama o Collado Villalba, estando ausentes en otras partes de esta región. Especialmente importante es la presencia de inscripciones dedicadas a Marte en la ciudad romana de Complutum (Alcalá de Henares, donde sus dedicantes pudieran pertenecer en algún caso al grupo social de los libertos.One oí the most important román divinities in Híspanla was Mars. His testimonies in the Meridional Plateau are in some villages of Madrid's province, as Alcalá de Henares, Talamanca del Jarama or Collado Villalba, and they are not in other places of this reglan. Specially important is ttie presence of inscriptions to Mars in ttie román town of Complutum (Alcalá de Henares, wtiere his devotes could belong to the social freedmans group.

Variation and Distribution of Glucosinolates in 42 Cultivars of Brassica oleracea Vegetable Crops

NARCIS (Netherlands)

Verkerk, R.; Tebbenhoff, S.; Dekker, M.

2010-01-01

Brassica vegetables are known to contain glucosinolates that are precursors for bioactive compounds like isothiocyanates that have been shown to play an important role in human health. This study reports the results of a screening of 11 Brassica oleracea crops consisting of 42 cultivars (6 white

Performance Comparison of EPICS IOC and MARTe in a Hard Real-Time Control Application

Science.gov (United States)

Barbalace, Antonio; Manduchi, Gabriele; Neto, A.; De Tommasi, G.; Sartori, F.; Valcarcel, D. F.

2011-12-01

EPICS is used worldwide mostly for controlling accelerators and large experimental physics facilities. Although EPICS is well fit for the design and development of automation systems, which are typically VME or PLC-based systems, and for soft real-time systems, it may present several drawbacks when used to develop hard real-time systems/applications especially when general purpose operating systems as plain Linux are chosen. This is in particular true in fusion research devices typically employing several hard real-time systems, such as the magnetic control systems, that may require strict determinism, and high performance in terms of jitter and latency. Serious deterioration of important plasma parameters may happen otherwise, possibly leading to an abrupt termination of the plasma discharge. The MARTe framework has been recently developed to fulfill the demanding requirements for such real-time systems that are alike to run on general purpose operating systems, possibly integrated with the low-latency real-time preemption patches. MARTe has been adopted to develop a number of real-time systems in different Tokamaks. In this paper, we first summarize differences and similarities between EPICS IOC and MARTe. Then we report on a set of performance measurements executed on an x86 64 bit multicore machine running Linux with an IO control algorithm implemented in an EPICS IOC and in MARTe.

Protective effects of aqueous and ethanolic extracts of Portulaca oleracea L. aerial parts on H2O2-induced DNA damage in lymphocytes by comet assay.

Science.gov (United States)

Behravan, Javad; Mosafa, Fatemeh; Soudmand, Negar; Taghiabadi, Elahe; Razavi, Bibi Marjan; Karimi, Gholamreza

2011-09-01

The comet assay is a standard method for measuring DNA damage. In this study, the protective effects of ethanolic and aqueous extracts of Portulaca oleracea L. (P. oleracea) on human lymphocyte DNA lesions were evaluated with the comet assay. Lymphocytes were isolated from blood samples taken from healthy volunteers. Human lymphocytes were incubated in H(2)O(2) (50,100, and 200 μM), aqueous extract (0.05, 0.1, 0.5, 1, and 2.5mg/ml), and ethanolic extracts (0.05, 0.1, 0.5, 1, and 2.5mg/ml) of P. oleraceae aerial parts alone with a combination of H(2)O(2) (100 μM) with either 1 or 2.5mg/ml of both extracts at 4°C for 30 minutes. The extent of DNA migration was measured using the alkaline single cell gel electrophoresis approach assay, and DNA damage was expressed as percentage tail DNA. We found that the aqueous extract of P. oleracea significantly inhibited DNA damage, while there was no effect of the ethanolic extract. These data suggest that the aqueous extract of P. oleracea can prevent oxidative DNA damage to human lymphocytes, which is likely due to antioxidant constituents in the extract. Copyright © 2011. Published by Elsevier B.V.

Nitrogen phytoremediation by water hyacinth (Eichhornia crassipes (Mart.) Solms)

NARCIS (Netherlands)

Fox, L.J.; Struik, P.C.; Appleton, B.L.; Rule, J.H.

2008-01-01

The phytoremediation potential of water hyacinth, Eichhornia crassipes (Mart.) Solms, was examined in two independent studies under nitrogen (N) rates of 0, 40, 80, 100, 150, 200, and 300 ppm. A modified Hoagland solution was added to ponds containing water hyacinths which were rated and measured

Ethanol extract from portulaca oleracea L. attenuated acetaminophen-induced mice liver injury

Science.gov (United States)

Liu, Xue-Feng; Zheng, Cheng-Gang; Shi, Hong-Guang; Tang, Gu-Sheng; Wang, Wan-Yin; Zhou, Juan; Dong, Li-Wei

2015-01-01

Acetaminophen-induced liver injury represents the most frequent cause of drug-induced liver failure in the world. Portulaca oleracea L., a widely distributed weed, has been used as a folk medicine in many countries. Previously, we reported that the ethanol extracts of Portulaca oleracea L. (PO) exhibited significant anti-hypoxic activity. In the present study, we investigated the role of PO on acetaminophen (APAP) induced hepatotoxicity. The results demonstrated that PO was an effective anti-oxidative agent, which could, to some extent, reverse APAP-induced hepatotoxicity by regulating the reactive oxygen species (ROS) in the liver of mice. At the same time, PO treatment significantly decreased mice serum levels of IL-6 and TNFα and their mRNA expression in liver tissue IL-α and TNFα play an important role during APAP-induced liver injury. Furthermore, PO inhibited APAP and TNFα-induced activation of JNK, whose activation play an important effect during APAP induced liver injury. These findings suggested that administration of PO may be an effective strategy to prevent or treat liver injury induced by APAP. PMID:25901199

Response Surface Modelling of Noradrenaline Production in Hairy Root Culture of Purslane (Portulaca oleracea L.

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Mehdi Ghorbani

2015-03-01

Full Text Available Common purslane (Portulaca oleracea L. is an annual plant as one of the natural sources for noradrenaline hormone. In this research, hairy root culture of purslane was established by using Agrobacterium rhizogenes strain ATCC 15834. In the following, Box-Behnken model of response surface methodology (RSM was employed to optimize B5 medium for the growth of P. oleracea L. hairy root line. According to the results, modelling and optimization conditions, including sucrose, CaCl2.H2O, H2PO4 and NO3-/NH4+ concentrations on maximum dry weight (0.155 g and noradrenaline content (0.36 mg.g-1 DW was predicted. These optimal conditions predicted by RSM were confirmed the enhancement of noradrenaline production as an application potential for production by hairy root cultures.

The education through the ideas of José Martí

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Manuel Fernández-Carcassés

2018-01-01

Full Text Available This article is an approach to the ideas of José Martí about the education, beginning from its function as formative of morals, ethics and esthetics values, and human and latin-american feelings. Also, it studies the popular character of the education like a human right, its scientist style and the urgency to use didactics methods for to stimulate the intelligence of students, without authoritarian and memorizing learning. This article insists in the important relations between the education and the societies and the epoch. The conclusion is: Cuban Revolution defined a strategy of development based in the ideas of José Martí. This strategy includes the education that, by the first time, takes into account the demands of our society.            

Enterprise Human Resources Integration-Statistical Data Mart (EHRI-SDM) Status Data

Data.gov (United States)

Office of Personnel Management — The Enterprise Human Resources Integration-Statistical Data Mart (EHRI-SDM) is a statistically cleansed sub-set of the data contained in the EHRI data warehouse. It...

Mart ja Mari-Ann Susi taotlevad omanikena Concordia pankrotti / Andri Maimets

Index Scriptorium Estoniae

Maimets, Andri, 1979-

2003-01-01

Concordia Ülikooli rektor Mart Susi esitas kohtule avalduse, milles taotleb ülikooli pidanud Concordia Varahalduse OÜ pankroti väljakuulutamist. Vt. samas: Mari-Ann Susi õigustas ülikooli raha kasutamist

Rol mezhdu proshlõm i budushtshim / Mart Laar ; interv. Josef Kats

Index Scriptorium Estoniae

Laar, Mart, 1960-

2006-01-01

Parlamendisaadik ning ekspeaminister Mart Laarile meeldib kõige enam tema roll ajaloolasena, otsusest esitada oma kandidatuur peaministri kohale kevadistel parlamendivalimistel, 1940. a. sündmuste mõju Eesti arengule, venelased Eestis

Enterprise Human Resources Integration-Statistical Data Mart (EHRI-SDM) Dynamics Data

Data.gov (United States)

Office of Personnel Management — The Enterprise Human Resources Integration-Statistical Data Mart (EHRI-SDM) is a statistically cleansed sub-set of the data contained in the EHRI data warehouse. It...

Protective effects of aqueous and ethanolic extracts of Nigella sativa L. and Portulaca oleracea L. on free radical induced hemolysis of RBCs

Science.gov (United States)

Karimi, G; Aghasizadeh, M; Razavi, M; Taghiabadi, E

2011-01-01

Background and the purpose of the study It has been shown that Nigella sativa L. and Portulaca oleracea L. have many antioxidant components. In the present study, the cytoprotective effect of ethanolic and aqueous extracts of N.sativa and P.oleracea against hemolytic damages induced by free radical initiator, AAPH [2, 2’ azobis (2- amidinopropane) hydrochloride] was evaluated. Methods Hemolysis was induced by addition of AAPH. To study the cytoprotective effect, aqueous (50, 200, 300, 400, 800 µg/ml) and ethanolic (25, 100, 150, 200 and 400 µg/ml) extracts of N. sativa and aqueous (25, 50, 100, 150, 200 and 400 µg/ml) and ethanolic (300, 600, 900, 1200 and 1800 µg/ml) extracts of P. oleracea were employed. RBCs were incubated with both extracts and AAPH at 37 °C for 6 hrs. In order to evaluate the impact of the time of addition, extracts were added one and 2 hrs after AAPH. Samples of suspensions were removed at different times and the degree of hemolysis was assessed spectrophotometrically by reading the absorption of supernatants at 540 nm. Results Aqueous (300, 400 and 800 µg/ml) and ethanolic (150, 200 and 400 µg/ml) extracts of N.sativa and also, aqueous (100, 150, 200 and 400 µg/ml) and ethanolic (1200, 1800 µg/ml) extracts of P.oleracea showed concentration-dependent cytoprotective effects. Addition of extracts one hour after AAPH reduced but did not eliminate protective activities of extracts. Conclusion Cytorotective effect of aqueous and ethanolic extracts of N. sativa and P. oleracea against AAPH- induced hemolysis may be related to antioxidant properties of these plants. PMID:22615672

Safety evaluation of an açai-fortified fruit and berry functional juice beverage (MonaVie Active(®)).

Science.gov (United States)

Schauss, Alexander G; Clewell, Amy; Balogh, Lajos; Szakonyi, Ilona Pasics; Financsek, Istvan; Horváth, János; Thuroczy, Julianna; Béres, Erzsébet; Vértesi, Adél; Hirka, Gabor

2010-11-28

The safety of an açai (Euterpe oleracea Mart.) pulp enriched fruit and berry juice, MonaVie Active®, fortified with the functional ingredient, glucosamine, was studied. The beverage was found not to be mutagenic, clastogenic, cytotoxic, or genotoxic, as determined by the bacterial reverse mutation assay, chromosomal aberration assay, mouse micronucleus assay, and mammalian cell gene mutation (L5178Y) assay. The single dose LD50 based on a 14-day acute oral toxicity study is greater than 20,000 mg/kg bw, the highest dose tested. In a repeat dose 90-day oral subchronic toxicity study by gavage, 220 animals were randomly assigned to a control group, an untreated group, or one of three experimental groups (10, 20 and 40 g/kg bw). No treatment-related significant changes in body weight, food and water consumption, ophthalmology, organ weights, urinanalysis, hematological and clinical chemistry, or gross pathology, were observed in surviving animals compared to the control groups. Three animals died midway through the observation period (male, 20 g/kg bw/day; male 40 g/kg bw/day; and, female, 10 g/kg bw/day). These animals died without preceding clinical symptoms, histopathological lesions, or evidence of injury to tissue or organs except for signs of suffocation/aspiration congestion, which was concluded to be due to problems with the gavage administration of the fluid test article, and not due to the test article itself. The NOEAL was determined to be 40 g/kg bw/day for male and female rats, which was the highest dose tested. Phylloquinone (vitamin K1) content averaged 21.7 μg/100 g, comparable to amounts found in iceberg lettuce. In conclusion, the results provide additional experimental evidence that MonaVie Active® juice is non-toxic. Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.

Physicochemical and microbiological characterization and antioxidant capacity of açaí pulps marketed in the states of Minas Gerais and Pará, Brazil

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Rosemary Maria Pimentel Coutinho

Full Text Available ABSTRACT: The frozen açaí ( Euterpe oleracea Mart. pulp market has had acceptable development and presents great market potential due to its high nutritional level and fruit's seasonality. However, due to the lack of standards for all types of fruit, products without uniformity are in the market. This study aimed to evaluate frozen açaí pulp belonging to different trademarks related to chemical, physicochemical, and microbiological characteristics. Regarding the total titratable acidity (TTA and pH, two trademarks from Pará and two from Minas Gerais were rejected compared with the current legislation. It was observed that K (1,253.6mg 100 g-1, Ca (312mg 100g-1, Mg (178mg 100g-1, and P (145mg 100g-1 were the main minerals reported in the analyzed samples. Fe showed an average content from 9.65mg 100g-1 to 22.66mg 100g-1. As for microbiological characteristics, the counts for E. coli were in compliance with legislation. Counts of mesophilic aerobic, filamentous fungi, and yeasts showed variations in the results. The count of coagulase-positive S. aureus met the standards [102 Colony Forming Units (CFU g-1]; and presence of Salmonella sp. in a trademark was detected among the six evaluated trademarks. The analyzed pulp of açaí showed total phenolics values ranging from 240.14mg AGE 100g-1 to 372.43mg AGE 100g-1, and anthocyanin total levels ranging from 12.05 to 24.98mg 100g-1. The obtained physicochemical and microbiological results indicated the need for immediate implementation of Good Manufacturing Practices; conversely, the frozen pulp of açaí showed considerable antioxidant potential.

Safety evaluation of an acai-fortified fruit and berry functional juice beverage (MonaVie Active®)

International Nuclear Information System (INIS)

Schauss, Alexander G.; Clewell, Amy; Balogh, Lajos; Szakonyi, Ilona Pasics; Financsek, Istvan; Horvath, Janos; Thuroczy, Julianna; Beres, Erzsebet; Vertesi, Adel; Hirka, Gabor

2010-01-01

The safety of an acai (Euterpe oleracea Mart.) pulp enriched fruit and berry juice, MonaVie Active ® , fortified with the functional ingredient, glucosamine, was studied. The beverage was found not to be mutagenic, clastogenic, cytotoxic, or genotoxic, as determined by the bacterial reverse mutation assay, chromosomal aberration assay, mouse micronucleus assay, and mammalian cell gene mutation (L5178Y) assay. The single dose LD50 based on a 14-day acute oral toxicity study is greater than 20,000 mg/kg bw, the highest dose tested. In a repeat dose 90-day oral subchronic toxicity study by gavage, 220 animals were randomly assigned to a control group, an untreated group, or one of three experimental groups (10, 20 and 40 g/kg bw). No treatment-related significant changes in body weight, food and water consumption, ophthalmology, organ weights, urinanalysis, hematological and clinical chemistry, or gross pathology, were observed in surviving animals compared to the control groups. Three animals died midway through the observation period (male, 20 g/kg bw/day; male 40 g/kg bw/day; and, female, 10 g/kg bw/day). These animals died without preceding clinical symptoms, histopathological lesions, or evidence of injury to tissue or organs except for signs of suffocation/aspiration congestion, which was concluded to be due to problems with the gavage administration of the fluid test article, and not due to the test article itself. The NOEAL was determined to be 40 g/kg bw/day for male and female rats, which was the highest dose tested. Phylloquinone (vitamin K1) content averaged 21.7 μg/100 g, comparable to amounts found in iceberg lettuce. In conclusion, the results provide additional experimental evidence that MonaVie Active ® juice is non-toxic.

First experimental results and simulation for gas optimisation of the MART-LIME detector

International Nuclear Information System (INIS)

Bazzano, A.; Brunetti, M.T.; Cocchi, M.; Hall, C.J.; Lewis, R.A.; Natalucci, L.; Ortuno-Prados, F.; Ubertini, P.

1996-01-01

A large area high pressure multi-wire proportional counter (MWPC), with both spatial and spectroscopic capabilities, is being jointly developed by the Istituto di Astrofisica Spaziale (IAS), CNR, Frascati, Italy and the Daresbury Laboratory (DL), Warrington, UK as part of the MART-LIME telescope. Recent test results (October-December 1995) carried out at the DL facilities are presented. A brief study, by means of a simulation program, on the possible gas mixtures to be employed in the MART-LIME detector is also reported. The results of the simulation are compared with the experimental data obtained from the tests. (orig.)

Lutero y el luteranismo: El buzón postal Martín Lutero

OpenAIRE

Marco Ornelas

2014-01-01

Este artículo explora la idea de que la comunicación social opera de manera acoplada con las conciencias de los seres humanos – pero no es generada por ellas – , y utiliza como ejemplo al reformador alemán Martín Lutero. El traslape de operaciones de la conciencia y de operaciones comunicativas – interpenetración – se hace posible por la distinción persona/actor, que se actualiza en la comunicación mediante esquemas (el esquema per sona y el esquema actor), el llamado buzón postal Martín Lute...

Resposta cronotrópica ao teste anaeróbio máximo de corrida - MART

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Flávio Areal Lemos

2013-06-01

Full Text Available INTRODUÇÃO: A frequência cardíaca (FC no teste anaeróbio máximo de corrida (MART expressa o comportamento autonômico cardíaco em exercício. Ainda não foi investigado se tais respostas cronotrópicas apresentam associação com o desempenho aeróbio e anaeróbio. OBJETIVOS: Descrever a resposta cronotrópica cardíaca durante o MART nos segundos iniciais de estímulo (FC ON e de recuperação (FC OFF e estabelecer a associação entre as variáveis cronotrópicas com o desempenho aeróbio e anaeróbio. MÉTODOS: Foram voluntários 13 homens assintomáticos e fisicamente ativos, com 25,1 ± 4,9 anos, 76,8 ± 12,5 kg, 178,4 ± 9,0 cm e 50,6 ± 4,1 mL×kg‑1×min‑1. Na primeira visita, após a anamnese e medidas antropométricas, foi realizado um teste cardiopulmonar de exercício (TCPE com monitoração direta dos gases expirados. Na segunda visita, foi feita uma familiarização ao MART e na terceira, o teste de MART conduzido até a exaustão. RESULTADOS: A FC de recuperação (58 ± 20 bpm comparada à FC de pico alcançada no primeiro e no último estágio de MART (39 ± 14 bpm apresentou maior inclinação, resultando em maior amplitude de variação ao longo do teste, caracterizando diferenças significativas (P = 0,0017. A FC ON apresentou entre o momento inicial, meio e final do MART diferenças significativas (inicial versus final, p = 0,007. Para FC OFF foram encontradas diferenças significativas do início com o meio (p = 0,035 e do início com o final (p = 0,005 do teste. As correlações entre as variáveis cronotrópicas e de desempenho não apresentaram significância estatística (P < 0,05, assim como com as variáveis de desempenho. CONCLUSÃO: O MART parece ser um modelo de sobrecargas fisiológicas adequado para investigação da modulação autonômica cardíaca. Observou-se atuação do sistema parassimpático mesmo em cargas supramáximas até o final do teste.

Attività chemioprotettiva di estratti di spinacio (Spinacia oleracea L.)

OpenAIRE

Milano, Francesco

2013-01-01

It is well known that Spinach (Spinacia oleracea L.) has a variety of biological functions, such as antitumor and chemoprotective activity, but little is known about the modulation of secondary metabolites induction by abiotic stress (i.e. hypoxia) and it’s correlation to human health. In this study I demonstrate that 24 h hypoxia alter the production of secondary metabolites in spinach. In vitro studies on human colon adenocarcinoma HT-29 cell line of different spinach aqueous extracts,show ...

Aspectos ecológicos de fungos micorrízicos vesículo-arbusculares da mata tropical úmida da Ilha do Cardoso, SP, Brasil Ecological aspects of mycorrhizal vesicular-arbuscular fungi of the tropical humid forest of Cardoso Island, SP, Brazil

Directory of Open Access Journals (Sweden)

Sandra F. B Trufem

1990-12-01

Full Text Available No período de agosto/1984 a maio/1987, em nove ocasiões, foram coletadas 300 amostras de solo da rizosfera de 35 espécies de plantas nativas da mata tropical úmida do Parque Estadual da Ilha do Cardoso, SP, Brasil, para a investigação da ocorrência de fungos micorrízicos vesículo-arbusculares (MVA ea obtenção de dados sobre aspectos ecológicos desses microrganismos. Foram verificados 35 taxa de fungos MV A, sete dos quais espécies novas. Os esporos qué ocorreram em maior quantidade foram os de Acaulospora foveata Trappe & Janos, Acaulospora scrobiculata Trappe, Glomus etunicatum Becker & Gerd.. Glomus geosporum (Nicol. & Gerd. Walker, Glomus macrocarpum Tul. & Tul. e Glomus microcarpum Tul. & Tul. As plantas cujas rizosferas apresentaram maior número de esporos de fungos MV A foram as de Blechnum serrulatum L.C. Rich., Euterpe edulis Mart, Neomarica caerulia Sprague, Geonoma elegans Mart, e Piper aduncum L. A maior diversidade de espécies de fugnos MV A ocorreu nas rizosferas de Aphettandra sp., Geonoma elegans Mart e Leandra barbinervis Cogn. Verificouse que houve predominancia de espécies de fungos micorrízicos vesículo-arbusculares clamidospóricas sobre as azigospóricas, bem como que a quantidade de esporos em urna dada rizosfera está diretamente relacionada com a diversidade. Glomus monosporum Gerd. & Trappe e as espécies de Sclerocystis podem ser apontadas como características do ecossistema estudado, que apresentou a média de 50,04 esporos/ 100g de solo.From August/1984 to May/1987, 300 soil samples were collected from the rhizospheres of 35 species of native plants of Parque Estadual da Ilha do Cardoso, SP, Brazil, in a wet tropical forest, to investigate the occurrence and some ecological aspects of vesicular-arbuscular mycorrhizal (VAM fungi. Thirty five taxa of VA M fungi were reported, seven of them as new species. The most numerous VA M fungal spores belong to Acaulospora foveata Trappe & Janos, Acaulospora

El Profesor Académico, Dr. Pablo Gómez Martínez.

Directory of Open Access Journals (Sweden)

Zoilo Cuéllar-Montoya

2007-12-01

Más adelante, en la misma Presidencia de la Academia del Profesor Pedro José Almánzar Vargas (1963 – 1965, fue promovido Gómez Martínez a la categoría de Miembro de Número(2,10 con el trabajo “Ilio-cisto-plastia con colgajo sero-muscular invertido y reconstrucción de vejigas funcionales” (2,11. En la sesión ordinaria de la Academia del día 12 de marzo de 1964, el Académico Correspondiente Gómez Martínez presentó el trabajo mencionado(2,12 y, en la sesión ordinaria del día 14 de mayo de 1964, en virtud de haber quedado vacantes las sillas de los Señores Académicos de Número Jaime Jaramillo Arango, fallecido en Bogotá, el 31 de julio de 1962(2,13, Manuel José Luque Guevara, retirado por precarias condiciones de salud(2,14, y Fernando Torres Restrepo, trasladado definitivamente a los Estados Unidos(2,15, la Academia, en votación secreta, eligió, como Miembros de Número, a los Señores Académicos Correspondientes Pablo Gómez Martínez, Alfredo Artunduaga y J. Hernando Hernández Garay(2,16...

Motion tracking-enhanced MART for tomographic PIV

International Nuclear Information System (INIS)

Novara, Matteo; Scarano, Fulvio; Batenburg, Kees Joost

2010-01-01

A novel technique to increase the accuracy of multiplicative algebraic reconstruction technique (MART) reconstruction from tomographic particle image velocimetry (PIV) recordings at higher seeding density than currently possible is presented. The motion tracking enhancement (MTE) method is based on the combined utilization of images from two or more exposures to enhance the reconstruction of individual intensity fields. The working principle is first introduced qualitatively, and the mathematical background is given that explains how the MART reconstruction can be improved on the basis of an improved first guess object obtained from the combination of non-simultaneous views reduced to the same time instant deforming the 3D objects by an estimate of the particle motion field. The performances of MTE are quantitatively evaluated by numerical simulation of the imaging, reconstruction and image correlation processes. The cases of two or more exposures obtained from time-resolved experiments are considered. The iterative application of MTE appears to significantly improve the reconstruction quality, first by decreasing the intensity of the ghost images and second, by increasing the intensity and the reconstruction precision for the actual particles. Based on computer simulations, the maximum imaged seeding density that can be dealt with is tripled with respect to the MART analysis applied to a single exposure. The analysis also illustrates that the maximum effect of the MTE method is comparable to that of doubling the number of cameras in the tomographic system. Experiments performed on a transitional jet at Re = 5000 apply the MTE method to double-frame recordings. The velocity measurement precision is increased for a system with fewer views (two or three cameras compared with four cameras). The ghost particles' intensity is also visibly reduced although to a lesser extent with respect to the computer simulations. The velocity and vorticity field obtained from a three

MART-10, a newly synthesized vitamin D analog, represses metastatic potential of head and neck squamous carcinoma cells

Directory of Open Access Journals (Sweden)

Yang SW

2016-06-01

Full Text Available Shih-Wei Yang,1,* Chi-Ying Tsai,2,* Yi-Chun Pan,3 Chun-Nan Yeh,4 Jong-Hwei S Pang,5 Masashi Takano,6 Atsushi Kittaka,6 Horng-Heng Juang,7 Tai C Chen,8 Kun-Chun Chiang4,9 1Department of Otolaryngology – Head and Neck Surgery, Chang Gung Memorial Hospital, Keelung, 2Department of Oral and Maxillofacial Surgery, Chang Gung Memorial Hospital, Taoyuan, 3Department of General Dentistry, Chang Gung Memorial Hospital, Chang Gung University, Keelung, 4General Surgery Department, Chang Gung Memorial Hospital, Keelung, 5Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan, Republic of China; 6Faculty of Pharmaceutical Sciences, Teikyo University, Tokyo, Japan; 7Department of Anatomy, College of Medicine, Chang Gung University, Taoyuan, Taiwan, Republic of China; 8Endocrine Core Laboratory, Boston University School of Medicine, Boston, MA, USA; 9Zebrafish Center, Chang Gung Memorial Hospital, Keelung, Taiwan, Republic of China *These authors contributed equally to this work Abstract: Even with multidisciplinary treatment, the prognosis and quality of life of patients diagnosed with head and neck squamous cell carcinoma (HNSCC are still not satisfactory. Previously, 19-Nor-2α-(3-hydroxypropyl-1α,25(OH2D3 (MART-10, the new brand 1α,25(OH2D3 analog, has been demonstrated to be an effective drug to inhibit HNSCC growth in vitro. Since most cancer patients die of metastasis, in this study, the antimetastatic effect of MART-10 on HNSCC was investigated. Our results reveal that both 1α,25(OH2D3 and MART-10 effectively repressed the migration and invasion of HNSCC cells, with MART-10 being much more potent than 1α,25(OH2D3. The antimetastatic effect of 1α,25(OH2D3 and MART-10 was mediated by attenuation of epithelial–mesenchymal transition (EMT, which was supported by the finding that the expression of EMT-inducing transcriptional factors, Sail and Twist, was inhibited by 1α,25(OH2D3 and MART

In vtro adventitious shoot regeneration from cotyledon explant of brassica oleracea subsp. Italica and brassica oleracea subsp. capitata using tdz and naa

International Nuclear Information System (INIS)

Salim, S.; Rashid, A.

2014-01-01

Broccoli(Brassica oleracea subsp. italica) cv. Green Dragon King and cabbage (Brassica oleracea subsp. capitata) cv. Gianty are important vegetable crops grown in Cameron Highlands, Malaysia. The cotyledons of both cultivars were used as explant source for in vitro shoot regeneration. The objective of this research was to examine the influence of the growth regulators thidiazuron (TDZ) and naphthaleneacetic acid (NAA) on adventitious shoot formation in these cultivars. This system of adventitious shoot regeneration from cotyledon explants could be useful as a tool for genetic transformation of the subspecies. Cotyledon explants of both cultivars excised from 5-day-old in vitro germinated seedlings were placed on shoot induction medium containing basal salts of Murashige and Skoog (MS) and various concentrations of TDZ and NAA. The highest percentage of cotyledon explant of broccoli cv. Green Dragon King producing shoot (76.66%) and the highest mean number of shoots produced per explant (0.9) were obtained on 0.1 mg/l TDZ with 0.1 mg/l NAA. Meanwhile, the highest percentage of cotyledon explant of cabbage cv. Gianty producing shoots (86.67%) and highest number of shoots produced per explant (1.1) were recorded on 0.5 mg/l TDZ with 0.1 mg/l NAA. Therefore, 0.1 mg/l TDZ with 0.1 mg/l NAA and 0.5 mg/l TDZ with 0.1mg/l NAA are the recommended combinations for adventitious shoot regeneration from cotyledonary explants of broccoli cv. Dragon King and cabbage cv. Gianty respectively. (author)

Análisis mecánico por elementos finitos de una antena UHF en la órbita de Marte

OpenAIRE

Moreno García, Carlos

2015-01-01

El proyecto desarrolla el diseño mecánico de una antena helicoidal en banda UHF que será parte de un satélite cuyo destino final será Marte. Los principales objetivos de la misión son: Buscar trazas o evidencia de metano y otros gases atmosféricos que podrían manifestar signos de procesos biológicos o geológicos activos, es decir, buscar indicios de vida pasada en Marte Poner a prueba la tecnología necesaria para posteriores misiones europeas a Marte. El proyecto se centrará en la...

Arbuscular Mycorrhizal Fungal Community Composition in Carludovica palmata, Costus scaber and Euterpe precatoria from Weathered Oil Ponds in the Ecuadorian Amazon

Science.gov (United States)

Garcés-Ruiz, Mónica; Senés-Guerrero, Carolina; Declerck, Stéphane; Cranenbrouck, Sylvie

2017-01-01

Arbuscular mycorrhizal fungi (AMF) are ubiquitous to most natural and anthropized ecosystems, and are often found in polluted environments. However, their occurrence and community composition in highly weathered petroleum-polluted soils has been infrequently reported. In the present study, two ponds of weathered crude oil and their surrounding soil from the Charapa field in the Amazon region of Ecuador were selected and root colonization by AMF of their native plants investigated. The AMF community was further analyzed in three selected plant species (i.e., Carludovica palmata, Costus scaber and Euterpe precatoria) present in the two ponds and the surrounding soil. A fragment covering partial SSU, the whole ITS and partial LSU rDNA region was amplified (i.e., 1.5 kb), cloned and sequenced from the roots of each host species. AMF root colonization exceeded 56% in all plant species examined and no significant difference was observed between sites or plants. For AMF community analysis, a total of 138 AMF sequences were obtained and sorted into 32 OTUs based on clustering (threshold ≥97%) by OPTSIL. The found OTUs belonged to the genera Rhizophagus (22%), Glomus (31%), Acaulospora (25%) and Archaeospora (22%). Glomus and Archaeospora were always present regardless of the plant species or the site. Acaulospora was found in the three plant species and in the two ponds while Rhizophagus was revealed only in the surrounding soil in one plant species (Euterpe precatoria). Our study contributed to the molecular community composition of AMF and revealed an unexpected high presence of four AMF genera which have established a symbiosis with roots of native plants from the Amazon forest under high polluted soil conditions. PMID:29163421

Protective effects of aqueous and ethanolic extracts of Nigella sativa L.and Portulaca oleracea L. on free radical induced hemolysis of RBCs

Directory of Open Access Journals (Sweden)

E Taghiabadi

2011-10-01

Full Text Available "n  Background and the purpose of the study: It has been shown that Nigella sativa L. and Portulaca oleracea L. have many antioxidant components. In the present study, the cytoprotective effect of ethanolic and aqueous extracts of N.sativa and P.oleracea against hemolytic damages induced by free radical initiator, AAPH [2, 2' azobis (2- amidinopropane hydrochloride] was evaluated. "n  Methods: Hemolysis was induced by addition of AAPH. To study the cytoprotective effect, aqueous (50, 200, 300, 400, 800 μg/ml and ethanolic (25, 100, 150, 200 and 400 μg/ml extracts of N. sativa and aqueous (25, 50, 100, 150, 200 and 400 μg/ml and ethanolic (300, 600, 900, 1200 and 1800 μg/ml extracts of P. oleracea were employed. RBCs were incubated with both extracts and AAPH at 37 °C for 6 hrs. In order to evaluate the impact of the time of addition, extracts were added one and 2 hrs after AAPH. Samples of suspensions were removed at different times and the degree of hemolysis was assessed spectrophotometrically by reading the absorption of supernatants at 540 nm. "n  Results: Aqueous (300, 400 and 800 μg/ml and ethanolic (150, 200 and 400 μg/ml extracts of N.sativa and also, aqueous (100, 150, 200 and 400 μg/ml and ethanolic (1200, 1800 μg/ml extracts of P.oleracea showed concentration-dependent cytoprotective effects. Addition of extracts one hour after AAPH reduced but did not eliminate protective activities of extracts. "n  Conclusion: Cytorotective effect of aqueous and ethanolic extracts of N. sativa and P. oleracea against AAPH- induced hemolysis may be related to antioxidant properties of these plants.

Preemiad said Rein Raud, fs, Mart Kivastik

Index Scriptorium Estoniae

2005-01-01

Eesti Kultuurkapitali 2004. aasta kirjanduse aastapreemia laureaadid on: Rein Raud ("Hector ja Bernard"), fs (luulekogu "2004"), Mart Kivastik (näidend "Külmetava kunstniku portree"), Jaan Rannap ("Nelja nimega koer"), Toomas Haug ("Troojamäe tõotus"), Harald Rajamets (tõlkeluule kogumik "Pegasos ja peegel"), Antoine Chalvin ("Kalevipoja" tõlge prantsuse keelde"), Ilmar Talve ("Eesti kultuurilugu"), Lauri Sommer (artikkel Uku Masingu käsikirja "Saadik Magellani pilvest" vaimne, ajalis-ruumiline ja elulooline taust), Boris Tuch ("Gorjatshaja desjatka estonskihh pisatelei")

In vitro germination and growth of babassu ( orbygnia phalerata Mart ...

African Journals Online (AJOL)

In vitro germination and growth of babassu (orbygnia phalerata Mart.) embryos subjected to different drying temperatures. Aurélio Rubio Neto, Bethânia Silva Morais De Freitas, Apolyana Lorrayne Souza, Fabiano Guimarães Silva, Juliana De Fátima Sales, Larissa Leandro Pires ...

Mart Siimann asus tööle presidendi sisenõunikuna

Index Scriptorium Estoniae

2003-01-01

Ilmunud ka Sakala (2003/Sep/30) lk. 7 ;Virumaa Teataja (2003/Sep/30) lk. 1. Eesti Olümpiakomitee president ja endine peaminister Mart Siimann asus veerandi kohaga tööle presidendi sisenõunikuna. Senine sisenõunik Jüri Kaljuvee asus julgeolekunõuniku kohale

Is Maxima a Wal-Mart in sheep's clothing? / Todd Graham

Index Scriptorium Estoniae

Graham, Todd

2007-01-01

Nii USA-s kui Leedus tegutsev teadlane Randy Richards uuris Ida-Euroopas jõudsalt laienenud kaubaketi Maxima ja USA Wal-Mart-i turu hõivamise, -positsiooni ja -strateegiate sarnasusi ja erinevusi. Vt. samas: Baltic retail continues to thrive. Kaubanduskeskuste ehitusbuum Eestis, Lätis ja Leedus

Comparação florística e estrutural de duas florestas de várzea no estuário amazônico, Pará, Brasil

Directory of Open Access Journals (Sweden)

Fábio de Jesus Batista

2011-04-01

Full Text Available O objetivo deste trabalho foi conhecer e comparar a composição florística e a estrutura de duas áreas de florestas de várzea localizadas na reserva extrativista Chocoaré-Mato Grosso, Santarém Novo-PA. O inventário florístico abrangeu 1,5 ha em parcelas de 10 x 100 m, distribuídas na área 1 (1,0 ha e área 2 (0,5 ha. Foram identificados os indivíduos arbóreos com circunferência a 1,3 m altura do solo (CAP > 30 cm e demonstrada a riqueza, área basal e o IVI (Índice de Valor de Importância para cada área. A relação entre as áreas foi realizada por meio da similaridade de espécies, densidade, área basal, análise de agrupamento e espécies indicadoras. Na área 1, ocorreram 613 ind.ha-1 (26,67 m².ha-1 distribuídos em 17 famílias, 33 gêneros e 34 espécies com Euterpe oleracea, Enterolobium maximum, Symphonia globulifera, Pterocarpus amazonicus e Virola surinamensis apresentando os maiores IVI's e a área 2 com 744 ind.ha-1 (35,34 m².ha-1 em 13 famílias, 24 gêneros e 26 espécies com Mauritia flexuosa, Euterpe oleracea, Virola surinamensis, Tapirira guianensis e Inga thibaudiana com os maiores IVI's. As áreas registraram baixas similaridades entre si (0,18 e tanto a densidade quanto a área basal foram superiores na área 2. O agrupamento separou as áreas entre si e das 51 espécies, apenas 15 foram indicadoras. Conclui-se que, as florestas apresentaram baixa riqueza com pouca semelhança entre as populações arbóreas e as espécies indicadoras ocorreram nas áreas 1 e 2.

Progress in the migration towards the real-time framework MARTe at the FTU tokamak

International Nuclear Information System (INIS)

Boncagni, L.; Sadeghi, Y.; Vitelli, R.; Centioli, C.; Sinibaldi, S.; Vitale, V.; Zaccarian, L.; Zamborlini, G.

2011-01-01

Keeping in mind the proposed FAST experiment and aiming to meet basic requirements such as a modular and distributed architecture, where different control subsystems can be easily integrated at different times, and can operate either independently or in cooperation with other subsystems, at the end of last year we planned to upgrade the architecture of the FTU real-time system, improving in such a way its flexibility and modularity. We decided to adopt an available packages to reach our goal: MARTe. We report on the state of the art of the MARTe migration process, the difficulties dealt with, the benefits and advantages achieved, the progress made from our last report and, in particular, we describe the integration of the ODIN equilibrium reconstruction system in the real-time environment. The ODIN algorithm was already coded in previous works, but its integration in the real-time system has never been carried out at FTU. We illustrate how the MARTe architecture and the RTNet level allows for a first level of parallelization, distributing the data and/or time among nodes.

Progress in the migration towards the real-time framework MARTe at the FTU tokamak

Energy Technology Data Exchange (ETDEWEB)

Boncagni, L., E-mail: boncagni@frascati.enea.it [Associazione EURATOM-ENEA sulla Fusione, C.R. ENEA Frascati, Rome (Italy); Sadeghi, Y.; Vitelli, R. [Dipartimento di Informatica, Sistemi e Produzione, Universita di Roma, Tor Vergata, Rome (Italy); Centioli, C. [Associazione EURATOM-ENEA sulla Fusione, C.R. ENEA Frascati, Rome (Italy); Sinibaldi, S. [Dipartimento di Informatica, Sistemi e Produzione, Universita di Roma, Tor Vergata, Rome (Italy); Vitale, V. [Associazione EURATOM-ENEA sulla Fusione, C.R. ENEA Frascati, Rome (Italy); Zaccarian, L. [Dipartimento di Informatica, Sistemi e Produzione, Universita di Roma, Tor Vergata, Rome (Italy); Zamborlini, G. [Facolta di Ingegneria, Universita di Roma La Sapienza, Rome (Italy)

2011-10-15

Keeping in mind the proposed FAST experiment and aiming to meet basic requirements such as a modular and distributed architecture, where different control subsystems can be easily integrated at different times, and can operate either independently or in cooperation with other subsystems, at the end of last year we planned to upgrade the architecture of the FTU real-time system, improving in such a way its flexibility and modularity. We decided to adopt an available packages to reach our goal: MARTe. We report on the state of the art of the MARTe migration process, the difficulties dealt with, the benefits and advantages achieved, the progress made from our last report and, in particular, we describe the integration of the ODIN equilibrium reconstruction system in the real-time environment. The ODIN algorithm was already coded in previous works, but its integration in the real-time system has never been carried out at FTU. We illustrate how the MARTe architecture and the RTNet level allows for a first level of parallelization, distributing the data and/or time among nodes.

Anti-fatigue effects of polysaccharides extracted from Portulaca oleracea L. in mice.

Science.gov (United States)

Xu, Zhongxin; Shan, Ying

2014-08-01

Portulaca oleracea L. has been used as a food and medicinal plant for thousands of years in China. Polysaccharides extracted from P. oleracea L. (POP) are its main bioactive compound and have multiple pharmacological activities. However, anti-fatigue effects of POP have not yet been tested. This study was designed to investigate the anti-fatigue effects of POP in mice using the rotarod and forced swimming tests. The mice were randomly divided into four groups, namely normal control group, low-dose POP supplementation group, medium-dose POP supplementation group and high-dose POP supplementation group. The normal control group received distilled water and the supplementation groups received different doses of POP (75, 150 and 300 mg/kg, respectively). The POP or distilled water was administered orally and daily for 30 day. After 30 days, the rotarod and forced swimming tests were performed and then several biochemical parameters related to fatigue were determined. The data showed that POP prolonged the riding times and exhaustive swimming times of mice, decreasing blood lactic acid and serum urea nitrogen levels, as well as increasing the liver and muscle glycogen contents. These results indicated that POP had the anti-fatigue effects.

A novel alkaloid from Portulaca oleracea L.

Science.gov (United States)

Xu, Liang; Ying, Zheming; Wei, Wenjuan; Hao, Dong; Wang, Haibo; Zhang, Wenjie; Li, Cuiyu; Jiang, Mingyue; Ying, Xixiang; Liu, Jing

2017-04-01

A novel alkaloid named oleraciamide C (1), with six known compounds, hydroxydihydrobovolide (2), uracil (3), catechol (4), 4-aminophenol (5), vanillic acid (6) as well as 3-hydroxypyridine (7), were isolated from Portulaca oleracea L. Additionally, hydroxydihydrobovolide (2), 4-aminophenol (5), 3-hydroxypyridine (7) were obtained from the plant for the first time. Structure of the new compound was determined using spectroscopic methods including HR-ESI-TOF-MS, 1D and 2D NMR. Others were elucidated through 1 H NMR, 13 C NMR spectra and comparison with literature data. Notably, Compound 1 possessed an unusual bis-substituted eight-membered ring linked with the β-glucopyranose moiety. The cytotoxicity of compound 1 was evaluated against human adipose-derived stem cells (hADSCs) by CCK-8 method.

Chromosome Doubling of Microspore-Derived Plants from Cabbage (Brassica oleracea var. capitata L.) and Broccoli (Brassica oleracea var. italica L.).

Science.gov (United States)

Yuan, Suxia; Su, Yanbin; Liu, Yumei; Li, Zhansheng; Fang, Zhiyuan; Yang, Limei; Zhuang, Mu; Zhang, Yangyong; Lv, Honghao; Sun, Peitian

2015-01-01

Chromosome doubling of microspore-derived plants is an important factor in the practical application of microspore culture technology because breeding programs require a large number of genetically stable, homozygous doubled haploid plants with a high level of fertility. In the present paper, 29 populations of microspore-derived plantlets from cabbage (Brassica oleracea var. capitata) and broccoli (Brassica oleracea var. italica) were used to study the ploidy level and spontaneous chromosome doubling of these populations, the artificial chromosome doubling induced by colchicine, and the influence of tissue culture duration on the chromosomal ploidy of the microspore-derived regenerants. Spontaneous chromosome doubling occurred randomly and was genotype dependent. In the plant populations derived from microspores, there were haploids, diploids, and even a low frequency of polyploids and mixed-ploidy plantlets. The total spontaneous doubling in the 14 cabbage populations ranged from 0 to 76.9%, compared with 52.2 to 100% in the 15 broccoli populations. To improve the rate of chromosome doubling, an efficient and reliable artificial chromosome doubling protocol (i.e., the immersion of haploid plantlet roots in a colchicine solution) was developed for cabbage and broccoli microspore-derived haploids. The optimal chromosome doubling of the haploids was obtained with a solution of 0.2% colchicine for 9-12 h or 0.4% colchicine for 3-9 h for cabbage and 0.05% colchicine for 6-12 h for broccoli. This protocol produced chromosome doubling in over 50% of the haploid genotypes for most of the populations derived from cabbage and broccoli. Notably, after 1 or more years in tissue culture, the chromosomes of the haploids were doubled, and most of the haploids turned into doubled haploid or mixed-ploidy plants. This is the first report indicating that tissue culture duration can change the chromosomal ploidy of microspore-derived regenerants.

Linkage mapping of a dominant male sterility gene Ms-cd1 in Brassica oleracea

NARCIS (Netherlands)

Wang, X.; Lou, P.; Bonnema, A.B.; Yang, Boujun; He, H.; Zhang, Y.; Fang, Z.

2005-01-01

The dominant male sterility gene Ms-cd1 (c, cabbage; d, dominant) was identified as a spontaneous mutation in the spring cabbage line 79-399-3. The Ms-cd1 gene is successfully applied in hybrid seed production of several Brassica oleracea cultivars in China. Amplified fragment length polymorphism

Kuidas ohjeldada netikommentaatoreid? / Mart Laanpere, Peeter Normak, Jaanus Lillenberg, Kristi Kasper-Semidor

Index Scriptorium Estoniae

2010-01-01

Küsimusele vastavad TLÜ haridustehnoloogia keskuse juhataja Mart Laanpere, TLÜ informaatika instituudi direktor Peeter Normak, Postimees Online’i arendus- ja turundusjuht Jaanus Lillenberg ja haridusveebi Koolielu toimetaja Kristi Kasper-Semidor

Fast development of real-time applications using MDSplus and MARTe frameworks

Energy Technology Data Exchange (ETDEWEB)

Manduchi, G., E-mail: gabriele.manduchi@igi.cnr.it [Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), Padova (Italy); Fredian, T.W.; Stillerman, J.A. [Massachusetts Institute of Technology, 175 Albany Street, Cambridge, MA 02139 (United States); Neto, A.; Sartori, F. [Fusion for Energy, Barcelona (Spain)

2016-11-15

Highlights: • The paper describes the integration of two different frameworks for control and data acquisition. • It describes the way the two frameworks have been integrated. • It describes the advantages of this combined approach. • It presents a case study of the utilization of the two integrated frameworks. - Abstract: The recent long lasting fusion experiments introduced a change in paradigm for control and data acquisition. While formerly implemented by different systems, using different software and hardware solutions, new requirements, such as the need of handling a sustained data stream, the availability of powerful general-purpose computers and the evolution of Linux towards real-time responsiveness make an integrated solution nowadays feasible. In the fusion community several frameworks have been developed for control and data acquisition and some of them are shared among different experiments. In particular, MDSplus represents the most used framework for data acquisition and management and MARTe is a framework for real-time applications originally developed at JET, but then adopted in several other experiments. Neither system can be used alone to provide integrated real-time control and data acquisition but, since their functionality complements, they can be used in conjunction. To achieve this, an additional layer has been developed so that data handled in real-time by MARTe components can be redirected to pulse file for storage. At the same time, configuration data, typically defined in the MDSplus experiment model, can be seamlessly transferred to MARTe GAMs during system configuration.

Enamik Mõtteloo Sihtkapitali rahast kasvab USA aktsiates / Mart Trummal ; interv. Anne Oja

Index Scriptorium Estoniae

Trummal, Mart

2006-01-01

Intervjuu Eesti Mõtteloo Sihtkapitali juhi Mart Trummaliga. Tabel: Mõtteloo Sihtkapitali vara on USA-s noteeritud indeksifondides; Investeeringud Eesti aktsiatesse. Diagramm: Finantsinvesteeringute maht. Vt. samas: Anne Oja. Dividendisaajate esirinnas. Kommenteerib Annika Matson

Genetic diversity and conservation of Picea chihuahuana Martínez ...

African Journals Online (AJOL)

SAM

2014-07-09

Jul 9, 2014 ... individuals within a population and among populations within a species. Hence ... risks related to loss of species, populations and genetic resources; c) ... this spruce and two other congeners, Picea mexicana. Martínez and Picea .... high levels of self-fertilization and mating between closely related ...

José Martí en la formación ético-humanista del futuro profesional de la Salud José Martí within the ethical-humanistic formation of future health care professionals

Directory of Open Access Journals (Sweden)

Ana Lidia Torres Armenteros

2010-08-01

Full Text Available Este trabajo tiene el objetivo de elevar la contribución de la asignatura Filosofía y Salud a la formación ético-humanista de los estudiantes de Medicina, tomando como paradigma el legado de José Martí. El estudio recoge el tratamiento conceptual acerca de la ética, la ética médica, la moral, y el humanismo como concepción filosófica, así como vías para insertar creativamente el pensamiento humanista martiano en la asignatura, utilizando pasajes, testimonios y citas de sus obras. Más adelante, se concretan actividades para conseguirlo. Se concluye generalizando que el hombre nuevo, que se quiere forjar en las universidades, no estaría completo sin el conocimiento de la vida y obra martiana y la aplicación creadora de su pensamiento humanista en las nuevas circunstancias históricas.The article aims to increase the contribution of the subject Philosophy and Health to the ethical-humanistic formation of medical students, taking into account José Martí’s legacy as paradigm. It conceptually analyzes ethics, medical ethics, moral, and humanism as a philosophical concept, as well as dealing with different approaches to creatively include Martí’s humanistic thought in the subject, by means of passages, testimonies, and quotations. After that, a set of activities is suggested. As conclusions, it states that the new man to be educated at the university fails to be complete if he has a deficient knowledge about Martí’s life and work, and an inadequate application of his humanistic thought in the present historical circumstances.

Enzyme characterisation, isolation and cDNA cloning of polyphenol oxidase in the hearts of palm of three commercially important species.

Science.gov (United States)

Shimizu, Milton Massao; Melo, Geraldo Aclécio; Brombini Dos Santos, Adriana; Bottcher, Alexandra; Cesarino, Igor; Araújo, Pedro; Magalhães Silva Moura, Jullyana Cristina; Mazzafera, Paulo

2011-09-01

Heart of palm (palmito) is the edible part of the apical meristem of palms and is considered a gourmet vegetable. Palmitos from the palms Euterpe edulis (Juçara) and Euterpe oleracea (Açaí) oxidise after harvesting, whereas almost no oxidation is observed in palmitos from Bactris gasipaes (Pupunha). Previous investigations showed that oxidation in Juçara and Açaí was mainly attributable to polyphenol oxidase (PPO; EC 1.14.18.1) activity. In this study, we partially purified PPOs from these three palmitos and analysed them for SDS activation, substrate specificity, inhibition by specific inhibitors, thermal stability, optimum pH and temperature conditions, Km and Ki. In addition, the total phenolic content and chlorogenic acid content were determined. Two partial cDNA sequences were isolated and sequenced from Açaí (EoPPO1) and Juçara (EePPO1). Semi-quantitative RT-PCR expression assays showed that Açaí and Juçara PPOs were strongly expressed in palmitos and weakly expressed in leaves. No amplification was observed for Pupunha samples. The lack of oxidation in the palmito Pupunha might be explained by the low PPO expression, low enzyme activity or the phenolic profile, particularly the low content of chlorogenic acid. Copyright © 2011 Elsevier Masson SAS. All rights reserved.

Loyola University distingue al Ing. Martínez

OpenAIRE

Lezcano, Liseth

2011-01-01

El Ing. Axel Martínez, Director de Recursos Humanos de la Universidad Tecnológica de Panamá (UTP), recibió un reconocimiento que le hizo el Instituto de Recursos Humanos y Relaciones Industriales de Loyola University Chicago (LUC), como egresado destacado del Programa de Maestría en Recursos Humanos, por la prestigiosa carrera académica y por sus éxitos profesionales en un importante ambiente académico.

High-density single nucleotide polymorphism (SNP) array mapping in Brassica oleracea: identification of QTL associated with carotenoid variation in broccoli florets.

Science.gov (United States)

Brown, Allan F; Yousef, Gad G; Chebrolu, Kranthi K; Byrd, Robert W; Everhart, Koyt W; Thomas, Aswathy; Reid, Robert W; Parkin, Isobel A P; Sharpe, Andrew G; Oliver, Rebekah; Guzman, Ivette; Jackson, Eric W

2014-09-01

A high-resolution genetic linkage map of B. oleracea was developed from a B. napus SNP array. The work will facilitate genetic and evolutionary studies in Brassicaceae. A broccoli population, VI-158 × BNC, consisting of 150 F2:3 families was used to create a saturated Brassica oleracea (diploid: CC) linkage map using a recently developed rapeseed (Brassica napus) (tetraploid: AACC) Illumina Infinium single nucleotide polymorphism (SNP) array. The map consisted of 547 non-redundant SNP markers spanning 948.1 cM across nine chromosomes with an average interval size of 1.7 cM. As the SNPs are anchored to the genomic reference sequence of the rapid cycling B. oleracea TO1000, we were able to estimate that the map provides 96 % coverage of the diploid genome. Carotenoid analysis of 2 years data identified 3 QTLs on two chromosomes that are associated with up to half of the phenotypic variation associated with the accumulation of total or individual compounds. By searching the genome sequences of the two related diploid species (B. oleracea and B. rapa), we further identified putative carotenoid candidate genes in the region of these QTLs. This is the first description of the use of a B. napus SNP array to rapidly construct high-density genetic linkage maps of one of the constituent diploid species. The unambiguous nature of these markers with regard to genomic sequences provides evidence to the nature of genes underlying the QTL, and demonstrates the value and impact this resource will have on Brassica research.

A physical map of Brassica oleracea shows complexity of chromosomal changes following recursive paleopolyploidizations

Directory of Open Access Journals (Sweden)

Giattina Emily

2011-09-01

Full Text Available Abstract Background Evolution of the Brassica species has been recursively affected by polyploidy events, and comparison to their relative, Arabidopsis thaliana, provides means to explore their genomic complexity. Results A genome-wide physical map of a rapid-cycling strain of B. oleracea was constructed by integrating high-information-content fingerprinting (HICF of Bacterial Artificial Chromosome (BAC clones with hybridization to sequence-tagged probes. Using 2907 contigs of two or more BACs, we performed several lines of comparative genomic analysis. Interspecific DNA synteny is much better preserved in euchromatin than heterochromatin, showing the qualitative difference in evolution of these respective genomic domains. About 67% of contigs can be aligned to the Arabidopsis genome, with 96.5% corresponding to euchromatic regions, and 3.5% (shown to contain repetitive sequences to pericentromeric regions. Overgo probe hybridization data showed that contigs aligned to Arabidopsis euchromatin contain ~80% of low-copy-number genes, while genes with high copy number are much more frequently associated with pericentromeric regions. We identified 39 interchromosomal breakpoints during the diversification of B. oleracea and Arabidopsis thaliana, a relatively high level of genomic change since their divergence. Comparison of the B. oleracea physical map with Arabidopsis and other available eudicot genomes showed appreciable 'shadowing' produced by more ancient polyploidies, resulting in a web of relatedness among contigs which increased genomic complexity. Conclusions A high-resolution genetically-anchored physical map sheds light on Brassica genome organization and advances positional cloning of specific genes, and may help to validate genome sequence assembly and alignment to chromosomes. All the physical mapping data is freely shared at a WebFPC site (http://lulu.pgml.uga.edu/fpc/WebAGCoL/brassica/WebFPC/; Temporarily password-protected: account

Development of Brassica oleracea-nigra monosomic alien addition lines: genotypic, cytological and morphological analyses.

Science.gov (United States)

Tan, Chen; Cui, Cheng; Xiang, Yi; Ge, Xianhong; Li, Zaiyun

2017-12-01

We report the development and characterization of Brassica oleracea - nigra monosomic alien addition lines (MAALs) to dissect the Brassica B genome. Brassica nigra (2n = 16, BB) represents the diploid Brassica B genome which carries many useful genes and traits for breeding but received limited studies. To dissect the B genome from B. nigra, the triploid F 1 hybrid (2n = 26, CCB) obtained previously from the cross B. oleracea var. alboglabra (2n = 18, CC) × B. nigra was used as the maternal parent and backcrossed successively to parental B. oleracea. The progenies in BC 1 to BC 3 generations were analyzed by the methods of FISH and SSR markers to screen the monosomic alien addition lines (MAALs) with each of eight different B-genome chromosomes added to C genome (2n = 19, CC + 1B 1-8 ), and seven different MAALs were established, except for the one with chromosome B2 which existed in one triple addition. Most of these MAALs were distinguishable morphologically from each other, as they expressed the characters from B. nigra differently and at variable extents. The alien chromosome remained unpaired as a univalent in 86.24% pollen mother cells at diakinesis or metaphase I, and formed a trivalent with two C-genome chromosomes in 13.76% cells. Transmission frequency of all the added chromosomes was far higher through the ovules (averagely 14.40%) than the pollen (2.64%). The B1, B4 and B5 chromosomes were transmitted by female at much higher rates (22.38-30.00%) than the other four (B3, B6, B7, B8) (5.04-8.42%). The MAALs should be valuable for exploiting the genome structure and evolution of B. nigra.

A physical map of Brassica oleracea shows complexity of chromosomal changes following recursive paleopolyploidizations

Science.gov (United States)

2011-01-01

Background Evolution of the Brassica species has been recursively affected by polyploidy events, and comparison to their relative, Arabidopsis thaliana, provides means to explore their genomic complexity. Results A genome-wide physical map of a rapid-cycling strain of B. oleracea was constructed by integrating high-information-content fingerprinting (HICF) of Bacterial Artificial Chromosome (BAC) clones with hybridization to sequence-tagged probes. Using 2907 contigs of two or more BACs, we performed several lines of comparative genomic analysis. Interspecific DNA synteny is much better preserved in euchromatin than heterochromatin, showing the qualitative difference in evolution of these respective genomic domains. About 67% of contigs can be aligned to the Arabidopsis genome, with 96.5% corresponding to euchromatic regions, and 3.5% (shown to contain repetitive sequences) to pericentromeric regions. Overgo probe hybridization data showed that contigs aligned to Arabidopsis euchromatin contain ~80% of low-copy-number genes, while genes with high copy number are much more frequently associated with pericentromeric regions. We identified 39 interchromosomal breakpoints during the diversification of B. oleracea and Arabidopsis thaliana, a relatively high level of genomic change since their divergence. Comparison of the B. oleracea physical map with Arabidopsis and other available eudicot genomes showed appreciable 'shadowing' produced by more ancient polyploidies, resulting in a web of relatedness among contigs which increased genomic complexity. Conclusions A high-resolution genetically-anchored physical map sheds light on Brassica genome organization and advances positional cloning of specific genes, and may help to validate genome sequence assembly and alignment to chromosomes. All the physical mapping data is freely shared at a WebFPC site (http://lulu.pgml.uga.edu/fpc/WebAGCoL/brassica/WebFPC/; Temporarily password-protected: account: pgml; password: 123qwe123

Genetic diversity and conservation of Picea chihuahuana Martínez ...

African Journals Online (AJOL)

The conservation of genetic diversity in tree populations is an essential component of sustainable forest management. Picea chihuahuana Martínez is an endemic conifer species in Mexico and is considered to be endangered. P. chihuahuana covers a total area of no more than 300 ha at the Sierra Madre Occidental, ...

"Nuestra América": José Martí ante la Razón Moderna

OpenAIRE

Pedro Pablo Rodríguez

2015-01-01

Este artículo es un acercamiento al difícil y singular diálogo con el pensamiento moderno y sus procedimientos del escritor, pensador y político cubano José Martí. La tesis es que el ideario de Martí expresó los intereses y la perspectiva de los pueblos de Hispanoamérica, a la que llamó Nuestra América, por oposición, según escribió ¿a la otra América, que no es nuestra¿. Plenamente consciente de que la identidad de la región se sustentaba en una cultura nueva, mestiza de lo aborigen y lo esp...

Response of yield and quality of cauliflower varieties (Brassica oleracea var. botrytis) to nitrogen supply

NARCIS (Netherlands)

Rather, K.; Schenk, M.K.; Everaarts, A.P.; Vethman, S.

1999-01-01

The fertilizer nitrogen (N) inputs to some vegetables such as cauliflower (Brassica oleracea var. botrytis) can be large. One approach to decreasing the input of N may be to select for cultivars efficient in the use of nitrogen. The objective of this investigation was to identify a cultivar which

Efeito alelopático e toxicidade frente à Artemia salina Leach dos extatos do fruto de Euterpe edulis Martius Allelopathic effects and toxicity against Artemia salina Leach of extracts of the fruit of Euterpe edulis Martius

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Cristina Peitz de Lima

2011-06-01

Full Text Available Alelopatia é um processo envolvendo metabólitos secundários produzidos por plantas que infl uenciam o crescimento e desenvolvimento de sistemas agrícolas. Devido à toxicidade dos herbicidas sintéticos para o meio ambiente e para a saúde humana tem-se aumentado o interesse na exploração da alelopatia como uma alternativa para o controle de plantas daninhas. O presente trabalho avaliou efeito dos extratos dos frutos de Euterpe edulis Martius sobre o desenvolvimento de cipselas e plântulas de Lactuca sativa Linné, foram determinados o índice de velocidade de germinação, o crescimento da radícula e do hipocótilo. Para a avaliação da toxicidade dos extratos foi realizado o ensaio de toxicidade frente ao microcrustáceo Artemia salina Leach determinando-se a CL50 e percentual de mortalidade. A fração remanescente demonstrou efeito alelopático, pois todas as concentrações alteraram os valores do índice de velocidade de germinação e as concentrações de 0,2 e 0,4 mg inibiram tanto o crescimento da radícula quanto o crescimento do hipocótilo. No ensaio de toxicidade todos os extratos apresentaram CL50 superior a 1000 ppm e 0% de mortalidade das artemias, indicando a não toxicidade dos extratos.Allelopathy is a process involving secondary metabolites produced by plants that influence growth and development of agricultural systems. Because of the toxicity of synthetic herbicides to the environment and human health, there has been increased interest in exploiting allelopathy as an alternative for weed control. This study evaluated the eff ect of extracts of Euterpe edulis Martius fruits on the development of cypselae and seedlings of Lactuca sativa Linné; the germination speed index, radicle and hypocotyl growth were determined. To evaluate the toxicity of the extracts the toxicity test against Artemia salina Leach was used, where the LC50 and mortality rate were determined. Th e remaining fraction showed allelopathic effect

Gene expression programs during Brassica oleracea seed maturation, osmopriming and germination process and the stress tolerance level

NARCIS (Netherlands)

Soeda, Y.; Konings, M.C.J.M.; Vorst, O.F.J.; Houwelingen, van A.M.M.L.; Stoopen, G.M.; Maliepaard, C.A.; Kodde, J.; Bino, R.J.; Groot, S.P.C.; Geest, van der A.H.M.

2005-01-01

During seed maturation and germination, major changes in physiological status, gene expression, and metabolic events take place. Using chlorophyll sorting, osmopriming, and different drying regimes, Brassica oleracea seed lots of different maturity, stress tolerance, and germination behavior were

Carmen Martín Gaite: la escritura terapéutica

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Escartín Gual, Montserrat

2014-12-01

Full Text Available This article discusses the therapeutic power of the written and oral communication, as well as the benefit of reading literary texts proposed by the narrative of Carmen Martín Gaite. If the author prioritized spoken communication in her first novels, with the passing of time, defended her narrative writing versus orality, making it the vehicle of choice for characters to communicate and ultimately for herself, to find the healing through the word.En este artículo se analiza el poder terapéutico de la comunicación oral y escrita, así como el beneficio de la lectura de textos literarios que propone la narrativa de Carmen Martín Gaite. Si la autora priorizó la comunicación hablada en su primeras novelas, con el paso del tiempo, su discurso narrativo defendió la escritura frente a la oralidad, convirtiéndola en el vehículo elegido por sus personajes para comunicarse y, en definitiva por ella misma, para buscar la curación a través de la palabra.

José Martí: paradigma de la generosidad

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Ana Lidia Torres Armenteros

Full Text Available Este trabajo tiene el objetivo de argumentar cómo se manifiesta la generosidad en la vida y obra de José Martí. Muestra la necesidad e importancia de recurrir a sus obras para fortalecer este valor desde los escenarios familiares, escolares, comunitarios y sociales. Se concluyó que la generosidad constituye en la actualidad una tarea pedagógica de gran importancia y el legado martiano es una vía obligada a recorrer.

Adsorption of heavy metals ions on portulaca oleracea plants

International Nuclear Information System (INIS)

Naqvi, R.R.

2005-01-01

The aim of this study is to report the ability of portulaca oleracea (Fershi in Urdu) biomass grown in uncontaminated soils to adsorb or uptake lead, cadmium, arsenic, cobalt and copper from aqueous solutions. In order to help understand the metal binding mechanism, laboratory experiments performance to determine optimal binding, and binding capacity for each of the above mentioned metals. These experiments were carried out for the mass of crushed portulaca stems. Portulaca is a plant that grows abundantly in temperature climate in the area of Quetta Balochistan. It has reddish stem and thick succulent leaves. This plant has been found to be good adsorbent for heavy metals ions. (author)

La melancolía en Amistad funesta de José Martí

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Ainhoa Segura Zariquiegui

2017-05-01

Full Text Available Existe una multitud de formas de acercarnos a la obra literaria de José Martí. En esta ocasión, se va mostrar de qué forma está impregnado el concepto de melancolía en su novela Amistad funesta. El análisis trata de ofrecer una nueva mirada sobre este texto gracias a la aplicación de las herramientas de la literatura comparada. Lucía Jerez se va a casar con su primo John, pero aparece Sol, una joven muy hermosa que hace estallar el conflicto entre los protagonistas. Tras el análisis de la historia de la melancolía en la literatura de Occidente, se comprueba cómo este concepto se mantiene arraigado en el Modernismo y, más concretamente, en esta obra de José Martí.

Effects of supplementation with acai (Euterpe oleracea Mart.) berry-based juice blend on the blood antioxidant defence capacity and lipid profile in junior hurdlers. A pilot study

OpenAIRE

Sadowska-Kr?pa, E; K?apci?ska, B; Podg?rski, T; Szade, B; Tyl, K; Hadzik, A

2015-01-01

The purpose of this pilot study was to examine whether regular consumption of an acai berry-based juice blend would affect sprint performance and improve blood antioxidant status and lipid profile in junior athletes. Seven junior hurdlers (17.5±1.2 years) taking part in a pre-season conditioning camp were supplemented once a day, for six weeks, with 100 ml of the juice blend. At the start and the end of the camp the athletes performed a 300-m sprint running test on an outdoor track. Blood sam...

Effects of supplementation with acai ( Euterpe oleracea Mart. berry-based juice blend on the blood antioxidant defence capacity and lipid profile in junior hurdlers. A pilot study

Directory of Open Access Journals (Sweden)

E Sadowska-Krępa

2015-05-01

Full Text Available The purpose of this pilot study was to examine whether regular consumption of an acai berry-based juice blend would affect sprint performance and improve blood antioxidant status and lipid profile in junior athletes. Seven junior hurdlers (17.5±1.2 years taking part in a pre-season conditioning camp were supplemented once a day, for six weeks, with 100 ml of the juice blend. At the start and the end of the camp the athletes performed a 300-m sprint running test on an outdoor track. Blood samples were taken before and immediately after the test and after 1 h of recovery. Blood antioxidant status was evaluated based on activities of antioxidant enzymes (superoxide dismutase [SOD], catalase [CAT], glutathione peroxidase [GSH-Px], glutathione reductase [GR], concentrations of non-enzymatic antioxidants (reduced glutathione [GSH], uric acid, total plasma polyphenols, ferric reducing ability of plasma (FRAP, thiobarbituric acid reactive substances (TBARS and activities of creatine kinase (CK and lactate dehydrogenase (LDH as muscle damage markers. In order to evaluate potential health benefits of the acai berry, the post-treatment changes in lipid profile parameters (triglycerides, cholesterol and its fractions were analysed. Six weeks’ consumption of acai berry-based juice blend had no effect on sprint performance, but it led to a marked increase in the total antioxidant capacity of plasma, attenuation of the exercise-induced muscle damage, and a substantial improvement of serum lipid profile. These findings strongly support the view of the health benefits of supplementation with the acai berry-based juice blend, mainly attributed to its high total polyphenol content and the related high in vivo antioxidant and hypocholesterolaemic activities of this supplement.

Raadioteatril elu sees. Elu sees? / Mart Aas, Tõnis Leemets ; interv. Kutt Kommel

Index Scriptorium Estoniae

Aas, Mart

2007-01-01

Eesti Raadio raadioteatri 78. sünnipäeval esietendus Vikerraadios dokumentaalkuuldemäng "Elu sees" Aleksander Alleni (hilisema nimega Aleksander Aas) mälestuste põhjal. Theatrumi lavastuse on raadiole seadnud Mart Aas, Marius Peterson, Toomas Lõhmuste ja Tõnis Leemets

Konteki edu saladus peitub efektiivsete lahenduste kiires rakendamises / Mart Urbas ; intervjueerinud Signe Kalberg

Index Scriptorium Estoniae

Urbas, Mart

2009-01-01

Firma juhataja asetäitja Mart Urbas 1991. aastal asutatud betoonifirmast AS Kontek Int, tehtud töödest (Tigutorn Tartus, Tornimäe 3 hotelli betoonkonstruktsioonid Tallinnas jt.), järelpingestatud betoonkonstruktsioonidest

José Martí: observador y creador de realidades.

OpenAIRE

Roberto Medina Bejarano; Miguel Angel Alomía Riascos

2018-01-01

El presente artículo tiene como propósito establecer una relación entre el pensamiento pedagógico de José Martí con algunos de los planteamientos que desde el paradigma de la complejidad, especialmente desde la biopedagogía, soportan las investigaciones pedagógicas contemporáneas que se inscriben también en los conceptos de ecoeducacíon y armonización educativa

Antioxidant defense gene analysis in Brassica oleracea and Trifolium repens exposed to Cd and/or Pb.

Science.gov (United States)

Bernard, F; Dumez, S; Brulle, F; Lemière, S; Platel, A; Nesslany, F; Cuny, D; Deram, A; Vandenbulcke, F

2016-02-01

This study focused on the expression analysis of antioxidant defense genes in Brassica oleracea and in Trifolium repens. Plants were exposed for 3, 10, and 56 days in microcosms to a field-collected suburban soil spiked by low concentrations of cadmium and/or lead. In both species, metal accumulations and expression levels of genes encoding proteins involved and/or related to antioxidant defense systems (glutathione transferases, peroxidases, catalases, metallothioneins) were quantified in leaves in order to better understand the detoxification processes involved following exposure to metals. It appeared that strongest gene expression variations in T. repens were observed when plants are exposed to Cd (metallothionein and ascorbate peroxidase upregulations) whereas strongest variations in B. oleracea were observed in case of Cd/Pb co-exposures (metallothionein, glutathione transferase, and peroxidase upregulations). Results also suggest that there is a benefit to use complementary species in order to better apprehend the biological effects in ecotoxicology.

RESPON LINGKUNGAN BELANJA SEBAGAI STIMULUS PEMBELIAN TIDAK BERENCANA PADA MINI MARKET MAMI MART PAINAN

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Mareta Kemala Sari

2014-10-01

Full Text Available Research planning not purchase the mami mini market mart visits from customer response to environmental spending as a stimulus, a customer case study on mini market mart mom Painan. Research using response variables shopping environment consisting of Pleasure, Arousal, Dominance.as mediator variable, hedonic shopping value, utilitarian shopping value, resources expenditure on the purchase was not planned (Impulse Buying. Data were collected using questionnaires distributed during the 2 weeks to the respondents who never shop at mini market. The study population is that they all are a mini market mami mart customers aged 18-55 years and have never shopped with a minimum of 2 times the transaction, the methods used by the descriptive analysis, and processing research model with smartPLS program. Mengunggapkan research results that the response variable dominance shopping environment positive effect on resources expenditure. Shopping environment arousal response variable positive effect on resources expenditure. Also revealed that spending resources poengalaman variable expenditure not a mediator between the response variable shopping environment and other variables shopping experience, as well as the negative effect on the purchase was not planned. But the expenditure of resources affect the shopping experience more variables such as the hedonic shopping value, utilitarian shopping value, resources expenditure

Portulaca oleracea L. aids calcipotriol in reversing keratinocyte differentiation and skin barrier dysfunction in psoriasis through inhibition of the nuclear factor κB signaling pathway

Science.gov (United States)

ZHAO, HENGGUANG; LI, SHUANG; LUO, FULING; TAN, QIAN; LI, HUI; ZHOU, WEIKANG

2015-01-01

Psoriasis affects 2–4% of the population worldwide and its treatment is currently far from satisfactory. Calcipotriol and Portulaca oleracea have been reported to exhibit the capacity to inhibit inflammation in psoriatic patients and improve their clinical condition. However, the efficacy of a combination regimen of these two components remains unknown. The aim of the present study was to explore the therapeutic efficacy of P. oleracea extract combined with calcipotriol on plaque psoriasis and its potential mechanism. Eleven patients with plaque psoriasis were treated with humectant containing the active ingredients of P. oleracea extract, with or without 0.005% calcipotriol ointment in a right-left bilateral lesion self-control study. Differences were evaluated by investigation of the clinical efficacy, adverse effects, skin barrier function, histological structure, expression and proliferation of keratinocytes, differentiation markers (cytokeratin 10, filaggrin and loricrin), inflammatory factors [tumor necrosis factor (TNF)-α and interleukin (IL)-8], as well as the status of the nuclear factor κB (NF-κB) pathway. The combination of P. oleracea and calcipotriol was revealed to decrease adverse effects, reduce transepidermal water loss, potently reverse keratinocyte differentiation dysfunction, and inhibit the expression of TNF-α and IL-8 and the phosphorylation of the NF-κB inhibitor IκBα. This treatment is therefore anticipated to be suitable for use as a novel adjuvant therapy for psoriatic patients. PMID:25574190

Mart ja Mari-Ann Susi taotlevad omanikena Concordia pankrotti / Andri Maimets

Index Scriptorium Estoniae

Maimets, Andri

2003-01-01

Concordia Ülikooli rektori kohast loobunud Mart Susi ning prorektori ametikohalt lahkunud Mari-Ann Susi taotlevad neile kuuluvat ülikooli pidanud miljonivõlgades firma pankrotti. Hiljuti loodi õppejõududest, tudengitest js töötajatest mittetulundusühing Concordia Akadeemiline Ühisus (CAU), selle nõukogu esimees on Hagi Šein

Kunstjäsemetega inimsööjad / Mart Kalvet, Alvo Aabloo, Kristjan Port

Index Scriptorium Estoniae

Kalvet, Mart, 1975-

2011-01-01

Inimene, meditsiin ja biotehnoloogia aastal 2031. Ennustavad tõlkija Mart Kalvet, Tartu Ülikooli arukate materjalide ja süsteemide labori professor Alvo Aabloo ja Tallinna Ülikooli Terviseteaduste ja Spordi Instituudi direktor Kristjan Port

Impact of different drying trajectories on degradation of nutritional compounds in broccoli (Brassica oleracea var. italica)

NARCIS (Netherlands)

Jin, X.; Oliviero, T.; Sman, van der R.G.M.; Verkerk, R.; Dekker, M.; Boxtel, van A.J.B.

2014-01-01

This work concerns the degradation of the nutritional compounds glucoraphanin (GR) and vitamin C (Vc), and the inactivation of the enzyme myrosinase (MYR) in broccoli (Brassica oleracea var. italica) during drying with air temperatures in the range of 30e60 C. Dynamic optimization is applied to find

The Effect of Sugar Beet Broadleaf Herbicides on Fluorescence Induction Curves in Amaranthus retroflexus L. and Portulaca oleracea L.

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Ali Asghar CHITBAND

2017-09-01

Full Text Available Chlorophyll fluorescence analysis is a simple and rapid method for detecting herbicide effects after a short time following their application in photosynthetic apparatus in plants. Chlorophyll fluorescence measurements were carried out against two broad of weeds to describe how the Kautsky curve and its parameters were affected by herbicides. Desmedipham + phenmedipham + ethofumesate changed the chlorophyll fluorescence induction curve at all time intervals except four hours after spring (HAS in Amaranthus retroflexus L. and at all doses of Portulaca oleracea L. 4 HAS. In contrast, chlorophyll fluorescence inhibition was evident by chloridazon at doses of 650 and 325 g a.i. ha-1 in P. oleracea and A. retroflexus respectively, for all time intervals. Furthermore, chlorophyll fluorescence decays only occurred by clopyralid in A. retroflexus at the highest dose. A biomass effective dose (ED50 and/or ED90 based on log-logistic dose-response curves for A. retroflexus were considerably higher than that of P. oleracea. The maximum quantum efficiency (FV/Fm was stable, whereas the relative changes at the J step (Fvj and area (the area between the Kautsky curve and the maximum fluorescence (Fm was more sensitive to all three herbicides. There was a relatively good correlation between fluorescence parameters taken 24 hours after the spraying and the dry matter taken three weeks later, for both species under study.

Formal Verification Method for Configuration of Integrated Modular Avionics System Using MARTE

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Lisong Wang

2018-01-01

Full Text Available The configuration information of Integrated Modular Avionics (IMA system includes almost all details of whole system architecture, which is used to configure the hardware interfaces, operating system, and interactions among applications to make an IMA system work correctly and reliably. It is very important to ensure the correctness and integrity of the configuration in the IMA system design phase. In this paper, we focus on modelling and verification of configuration information of IMA/ARINC653 system based on MARTE (Modelling and Analysis for Real-time and Embedded Systems. Firstly, we define semantic mapping from key concepts of configuration (such as modules, partitions, memory, process, and communications to components of MARTE element and propose a method for model transformation between XML-formatted configuration information and MARTE models. Then we present a formal verification framework for ARINC653 system configuration based on theorem proof techniques, including construction of corresponding REAL theorems according to the semantics of those key components of configuration information and formal verification of theorems for the properties of IMA, such as time constraints, spatial isolation, and health monitoring. After that, a special issue of schedulability analysis of ARINC653 system is studied. We design a hierarchical scheduling strategy with consideration of characters of the ARINC653 system, and a scheduling analyzer MAST-2 is used to implement hierarchical schedule analysis. Lastly, we design a prototype tool, called Configuration Checker for ARINC653 (CC653, and two case studies show that the methods proposed in this paper are feasible and efficient.

Anti-hypoxic activity of the ethanol extract from Portulaca oleracea in mice.

Science.gov (United States)

Chen, Cheng-Jie; Wang, Wan-Yin; Wang, Xiao-Li; Dong, Li-Wei; Yue, Yi-Tian; Xin, Hai-Liang; Ling, Chang-Quan; Li, Min

2009-07-15

To investigate the effects of the ethanol extract from Portulaca oleracea (EEPO) on hypoxia models mice and to find the possible mechanism of its anti-hypoxic actions so as to elucidate the anti-hypoxia activity and provide scientific basis for the clinical use of Portulaca oleracea. EEPO was evaluated on anti-hypoxic activity in several hypoxia mice models, including closed normobaric hypoxia and sodium nitrite or potassium cyanide toxicosis. To verify the possible mechanism(s), we detected the activities of pyruvate kinase (PK), phosphofructokinase (PFK), lactate dehydrogenase (LDH) and the level of adenosine triphosphate (ATP) in mice cortices. Given orally, the EEPO at doses of 100, 200, 400 mg/kg could dose-dependently enhance the survival time of mice in both of the normobaric and chemical hypoxia models. The activity of the glycolysis enzymes and the level of ATP were higher than those of the control. In the pentobarbital sodium-induced sleeping time test and the open-field test, EEPO neither significantly enhanced the pentobarbital sodium-induced sleeping time nor impaired the motor performance, indicating that the observed anti-hypoxic activity was unlikely due to sedation or motor abnormality. These results demonstrated that the EEPO possessed notable anti-hypoxic activity, which might be related to promoting the activity of the key enzymes in glycolysis and improving the level of ATP in hypoxic mice.

Phylogeny-dominant classification of J-proteins in Arabidopsis thaliana and Brassica oleracea.

Science.gov (United States)

Zhang, Bin; Qiu, Han-Lin; Qu, Dong-Hai; Ruan, Ying; Chen, Dong-Hong

2018-04-05

Hsp40s or DnaJ/J-proteins are evolutionarily conserved in all organisms as co-chaperones of molecular chaperone HSP70s that mainly participate in maintaining cellular protein homeostasis, such as protein folding, assembly, stabilization, and translocation under normal conditions as well as refolding and degradation under environmental stresses. It has been reported that Arabidopsis J-proteins are classified into four classes (types A-D) according to domain organization, but their phylogenetic relationships are unknown. Here, we identified 129 J-proteins in the world-wide popular vegetable Brassica oleracea, a close relative of the model plant Arabidopsis, and also revised the information of Arabidopsis J-proteins based on the latest online bioresources. According to phylogenetic analysis with domain organization and gene structure as references, the J-proteins from Arabidopsis and B. oleracea were classified into 15 main clades (I-XV) separated by a number of undefined small branches with remote relationship. Based on the number of members, they respectively belong to multigene clades, oligo-gene clades, and mono-gene clades. The J-protein genes from different clades may function together or separately to constitute a complicated regulatory network. This study provides a constructive viewpoint for J-protein classification and an informative platform for further functional dissection and resistant genes discovery related to genetic improvement of crop plants.

Portulaca oleracea reduces triglyceridemia, cholesterolemia, and improves lecithin: cholesterol acyltransferase activity in rats fed enriched-cholesterol diet.

Science.gov (United States)

Zidan, Y; Bouderbala, S; Djellouli, F; Lacaille-Dubois, M A; Bouchenak, M

2014-10-15

The effects of Portulaca oleracea (Po) lyophilized aqueous extract were determined on the serum high-density lipoproteins (HDL2 and HDL3) amounts and composition, as well as on lecithin: cholesterol acyltansferase (LCAT) activity. Male Wistar rats (n = 12) were fed on 1% cholesterol-enriched diet for 10 days. After this phase, hypercholesterolemic rats (HC) were divided into two groups fed the same diet supplemented or not with Portulaca oleracea (Po-HC) (0.5%) for four weeks. Serum total cholesterol (TC) and triacylglycerols (TG), and liver TG values were respectively 1.6-, 1.8-, and 1.6-fold lower in Po-HC than in HC group. Cholesterol concentrations in LDL-HDL1, HDL2, and HDL3 were respectively 1.8, 1.4-, and 2.4-fold decreased in Po-HC group. HDL2 and HDL3 amounts, which were the sum of apolipoproteins (apos), TG, cholesteryl esters (CE), unesterified cholesterol (UC), and phospholipids (PL) contents, were respectively 4.5-fold higher and 1.2-fold lower with Po treatment. Indeed, enhanced LCAT activity (1.2-fold), its cofactor-activator apo A-I (2-fold) and its reaction product HDL2-CE (2.1-fold) were observed, whereas HDL3-PL (enzyme substrate) and HDL3-UC (acyl group acceptor) were 1.2- and 2.4-fold lower. Portulaca oleracea reduces triglyceridemia, cholesterolemia, and improves reverse cholesterol transport in rat fed enriched-cholesterol diet, contributing to anti-atherogenic effects. Copyright © 2014 Elsevier GmbH. All rights reserved.

Phenolic acid contents of kale (Brassica oleraceae L. var. acephala DC.) extracts and their antioxidant and antibacterial activities

Czech Academy of Sciences Publication Activity Database

Ayaz, F. A.; Hayirlioglu-Ayaz, S.; Karaoglu, S.A.; Grúz, Jiří; Valentová, K.; Ulrichová, J.; Strnad, Miroslav

2008-01-01

Roč. 107, č. 1 (2008), s. 19-25 ISSN 0308-8146 Institutional research plan: CEZ:AV0Z50380511 Keywords : Black cabbage * Kale * Brassica oleraceae var. acephala Subject RIV: CE - Biochemistry Impact factor: 2.696, year: 2008

Role of phi cells and the endodermis under salt stress in Brassica oleracea.

Science.gov (United States)

Fernandez-Garcia, N; Lopez-Perez, L; Hernandez, M; Olmos, E

2009-01-01

Phi cell layers were discovered in the 19th century in a small number of species, including members of the Brassicaceae family. A mechanical role was first suggested for this structure; however, this has never been demonstrated. The main objective of the present work was to analyse the ultrastructure of phi cells, their influence on ion movement from the cortex to the stele, and their contribution to salt stress tolerance in Brassica oleracea. Transmission electron microscopy and X-ray microanalysis studies were used to analyse the subcellular structure and distribution of ions in phi cells and the endodermis under salt stress. Ion movement was analysed using lanthanum as an apoplastic tracer. The ultrastructural results confirm that phi cells are specialized cells showing cell wall ingrowths in the inner tangential cell walls. X-ray microanalysis confirmed a build-up of sodium. Phi thickenings were lignified and lanthanum moved periplasmically at this level. To the best of our knowledge, this is the first study reporting the possible role of the phi cells as a barrier controlling the movement of ions from the cortex to the stele. Therefore, the phi cell layer and endodermis seem to be regulating ion transport in Brassica oleracea under salt stress.

The wood quality of Pinus chiapensis (Mart.) Andresen grown in the ...

African Journals Online (AJOL)

The wood quality of Pinus chiapensis (Mart.) Andresen grown in the Mpumalanga forest region: scientific paper. ... When present, the amounts of included resin, pieces of bark and other debris at the occluded pruning cuts, were small and of little practical significance. The wood machined without any difficulty in the wet and ...

Conservation genetics of the genus Martes: Assessing within-species movements, units to conserve, and connectivity across ecological and evolutionary time [Chapter 17

Science.gov (United States)

Michael K. Schwartz; Aritz Ruiz-Gonzalez; Ryuchi Masuda; Cino Pertoldi

2012-01-01

Understanding the physical and temporal factors that structure Martes populations is essential to the conservation and management of the 8 recognized Martes species. Recently, advances in 3 distinct subdisciplines in molecular ecology have provided insights into historical and contemporary environmental factors that have created population substructure and influenced...

Homme algab valge olümpia / Mart Siimann, Paavo Kivine ; interv. Sulev Valner

Index Scriptorium Estoniae

Siimann, Mart, 1946-

2002-01-01

Salt Lake City olümpiamängude eelõhtul olid Maalehe vestlusringis spordist, olümpiast ja ausast mängust mõtteid avaldamas publitsist Paavo Kivine ja Eesti Olümpiakomitee president, parlamendisaadik Mart Siimann

Comparative evolution history of SINEs in Arabidopsis thaliana and Brassica oleracea: evidence for a high rate of SINE loss.

Science.gov (United States)

Lenoir, A; Pélissier, T; Bousquet-Antonelli, C; Deragon, J M

2005-01-01

Brassica oleracea and Arabidopsis thaliana belong to the Brassicaceae(Cruciferae) family and diverged 16 to 19 million years ago. Although the genome size of B. oleracea (approximately 600 million base pairs) is more than four times that of A. thaliana (approximately 130 million base pairs), their gene content is believed to be very similar with more than 85% sequence identity in the coding region. Therefore, this important difference in genome size is likely to reflect a different rate of non-coding DNA accumulation. Transposable elements (TEs) constitute a major fraction of non-coding DNA in plant species. A different rate in TE accumulation between two closely related species can result in significant genome size variations in a short evolutionary period. Short interspersed elements (SINEs) are non-autonomous retroposons that have invaded the genome of most eukaryote species. Several SINE families are present in B. oleracea and A. thaliana and we found that two of them (called RathE1 and RathE2) are present in both species. In this study, the tempo of evolution of RathE1 and RathE2 SINE families in both species was compared. We observed that most B. oleracea RathE2 SINEs are "young" (close to the consensus sequence) and abundant while elements from this family are more degenerated and much less abundant in A. thaliana. However, the situation is different for the RathE1 SINE family for which the youngest elements are found in A. thaliana. Surprisingly, no SINE was found to occupy the same (orthologous) genomic locus in both species suggesting that either these SINE families were not amplified at a significant rate in the common ancestor of the two species or that older elements were lost and only the recent (lineage-specific) insertions remain. To test this latter hypothesis, loci containing a recently inserted SINE in the A. thaliana col-0 ecotype were selected and characterized in several other A. thaliana ecotypes. In addition to the expected SINE containing

Interspecific hybridization, polyploidization, and backcross of Brassica oleracea var. alboglabra with B. rapa var. purpurea morphologically recapitulate the evolution of Brassica vegetables.

Science.gov (United States)

Zhang, Xiaohui; Liu, Tongjin; Li, Xixiang; Duan, Mengmeng; Wang, Jinglei; Qiu, Yang; Wang, Haiping; Song, Jiangping; Shen, Di

2016-01-04

Brassica oleracea and B. rapa are two important vegetable crops. Both are composed of dozens of subspecies encompassing hundreds of varieties and cultivars. Synthetic B. napus with these two plants has been used extensively as a research model for the investigation of allopolyploid evolution. However, the mechanism underlying the explosive evolution of hundreds of varieties of B. oleracea and B. rapa within a short period is poorly understood. In the present study, interspecific hybridization between B. oleracea var. alboglabra and B. rapa var. purpurea was performed. The backcross progeny displayed extensive morphological variation, including some individuals that phenocopied subspecies other than their progenitors. Numerous interesting novel phenotypes and mutants were identified among the backcross progeny. The chromosomal recombination between the A and C genomes and the chromosomal asymmetric segregation were revealed using Simple Sequence Repeats (SSR) markers. These findings provide direct evidence in support of the hypothesis that interspecific hybridization and backcrossing have played roles in the evolution of the vast variety of vegetables among these species and suggest that combination of interspecific hybridization and backcrossing may facilitate the development of new mutants and novel phenotypes for both basic research and the breeding of new vegetable crops.

Determining the Shape of the Orbit of Mars in the High School. (Spanish Title: Determinación de la Forma de la Órbita de Marte en la Escuela Secundaria.) Determinando a Forma da Órbita de Marte no Ensino Médio

Science.gov (United States)

Dutra, Carlos Maximiliano; Rossini Goulart, Andressa

2014-12-01

In the present work, in order to supply the lacks of practical activities related to the content of Kepler's Laws in high school physics textbooks, we present a practical activity to determine the shape of the orbit of Mars. In this activity the student can experience the discovery the shape of the orbit of Mars in a way similar to that realized by Johannes Kepler combining the physical concepts with geometry. We applied the activity to eighteen high school teachers participating in a Postgraduate Course in Science Education. After two hours of work the group obtained the shape of the orbit of Mars and estimated its orbital parameters with a relative error less than 14%. En el presente trabajo y con el objetivo de reducir la escasez de actividades prácticas relacionadas con el contenido de las leyes de Kepler en libros de texto de física de la escuela secundaria, se presenta una actividad práctica para determinar la forma de la órbita de Marte. En esta actividad el estudiante puede vivir la experiencia de descubrir la forma de la órbita de Marte de una manera similar a la realizada por Johannes Kepler combinando los conceptos físicos con la geometría. Aplicamos la actividad a dieciocho maestros de escuelas secundarias en un Curso de Especialización en Enseñanza de las Ciencias. Después de dos horas de trabajo el grupo obtuvo la forma de la órbita de Marte com error inferior al 14% en los parámetros orbitales. No presente trabalho, visando suprir a deficiência de atividades práticas relacionadas ao conteúdo de Leis de Kepler nos livros-textos de Física do 1º ano do Ensino Médio, apresentamos uma atividade prática de determinação da órbita de Marte. O aluno, combinando conceitos físicos com a geometria poderá vivenciar a experiência da descoberta da forma da órbita de Marte de modo similar ao realizado por Johannes Kepler. Aplicamos a metodologia proposta junto a dezoito professores do Curso de Especialização em Educação em Ciências e

Integration of Simulink, MARTe and MDSplus for rapid development of real-time applications

Energy Technology Data Exchange (ETDEWEB)

Manduchi, G., E-mail: gabriele.manduchi@igi.cnr.it [Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), Padova (Italy); Luchetta, A.; Taliercio, C. [Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA), Padova (Italy); Neto, A.; Sartori, F. [Fusion for Energy, Barcelona (Spain); De Tommasi, G. [Fusion for Energy, Barcelona (Spain); Consorzio CREATE/DIETI, Università degli Studi di Napoli Federico II, Via Claudio 21, 80125 Napoli (Italy)

2015-10-15

Highlights: • The integration of two frameworks for real-time control and data acquisition is described. • The integration may significantly fasten the development of system components. • The system includes also a code generator for the integration of code written in Simulink. • A real-time control systemcan be implemented without the need of writing any line of code. - Abstract: Simulink is a graphical data flow programming tool for modeling and simulating dynamic systems. A component of Simulink, called Simulink Coder, generates C code from Simulink diagrams. MARTe is a framework for the implementation of real-time systems, currently in use in several fusion experiments. MDSplus is a framework widely used in the fusion community for the management of data. The three systems provide a solution to different facets of the same process, that is, real-time plasma control development. Simulink diagrams will describe the algorithms used in control, which will be implemented as MARTe GAMs and which will use parameters read from and produce results written to MDSplus pulse files. The three systems have been integrated in order to provide a tool suitable to speed up the development of real-time control applications. In particular, it will be shown how from a Simulink diagram describing a given algorithm to be used in a control system, it is possible to generate in an automated way the corresponding MARTe and MDSplus components that can be assembled to implement the target system.

Integration of Simulink, MARTe and MDSplus for rapid development of real-time applications

International Nuclear Information System (INIS)

Manduchi, G.; Luchetta, A.; Taliercio, C.; Neto, A.; Sartori, F.; De Tommasi, G.

2015-01-01

Highlights: • The integration of two frameworks for real-time control and data acquisition is described. • The integration may significantly fasten the development of system components. • The system includes also a code generator for the integration of code written in Simulink. • A real-time control systemcan be implemented without the need of writing any line of code. - Abstract: Simulink is a graphical data flow programming tool for modeling and simulating dynamic systems. A component of Simulink, called Simulink Coder, generates C code from Simulink diagrams. MARTe is a framework for the implementation of real-time systems, currently in use in several fusion experiments. MDSplus is a framework widely used in the fusion community for the management of data. The three systems provide a solution to different facets of the same process, that is, real-time plasma control development. Simulink diagrams will describe the algorithms used in control, which will be implemented as MARTe GAMs and which will use parameters read from and produce results written to MDSplus pulse files. The three systems have been integrated in order to provide a tool suitable to speed up the development of real-time control applications. In particular, it will be shown how from a Simulink diagram describing a given algorithm to be used in a control system, it is possible to generate in an automated way the corresponding MARTe and MDSplus components that can be assembled to implement the target system.

Subgenome parallel selection is associated with morphotype diversification and convergent crop domestication in Brassica rapa and Brassica oleracea

NARCIS (Netherlands)

Cheng, Feng; Sun, Rifei; Hou, Xilin; Zheng, Hongkun; Zhang, Fenglan; Zhang, Yangyong; Liu, Bo; Liang, Jianli; Zhuang, Mu; Liu, Yunxia; Liu, Dongyuan; Wang, Xiaobo; Li, Pingxia; Liu, Yumei; Lin, Ke; Bucher, Johan; Zhang, Ningwen; Wang, Yan; Wang, Hui; Deng, Jie; Liao, Yongcui; Wei, Keyun; Zhang, Xueming; Fu, Lixia; Hu, Yunyan; Liu, Jisheng; Cai, Chengcheng; Zhang, Shujiang; Zhang, Shifan; Li, Fei; Zhang, Hui; Zhang, Jifang; Guo, Ning; Liu, Zhiyuan; Liu, Jin; Sun, Chao; Ma, Yuan; Zhang, Haijiao; Cui, Yang; Freeling, Micheal R.; Borm, Theo; Bonnema, Guusje; Wu, Jian; Wang, Xiaowu

2016-01-01

Brassica species, including crops such as cabbage, turnip and oilseed, display enormous phenotypic variation. Brassica genomes have all undergone a whole-genome triplication (WGT) event with unknown effects on phenotype diversification. We resequenced 199 Brassica rapa and 119 Brassica oleracea

Eesti talendid välismaale / Juko-Mart Kõlar, Tiina Jokinen, Anu Jaanson... [jt.

Index Scriptorium Estoniae

2011-01-01

Küsimustele muusikute vahendamisest välismaale vastavad MTÜ Eesti Muusika Ekspordi tegevjuht Juko-Mart Kõlar, Estonian Record Productionsi tegevdirektor Tiina Jokinen, sama firma mänedžer Anu Jaanson ja Pille Lille Muusikute Toetusfondi tegevjuht Leelo Lehtla

Draft Genome Sequence of a Kale (Brassica oleracea L.) Root Endophyte, Pseudomonas sp. Strain C9.

Science.gov (United States)

Laugraud, Aurelie; Young, Sandra; Gerard, Emily; O'Callaghan, Maureen; Wakelin, Steven

2017-04-13

Pseudomonas sp. strain C9 is a plant growth-promoting bacterium isolated from the root tissue of Brassica oleracea L. grown in soil from Marlborough, New Zealand. Its draft genome of 6,350,161 bp contains genes associated with plant growth promotion and biological control. Copyright © 2017 Laugraud et al.

El americanismo como elemento clave en la poesía de José Martí

OpenAIRE

Zils, Elys Regina; Nack, Graziele

2013-01-01

I Congresso Internacional América Latina e Interculturalidade: América Latina e Caribe: cenários linguístico-culturais contemporâneos, 07, 08 e 09 de novembro de 2013 - UNILA Este artículo aborda la noción de americanismo en la obra del poeta cubano José Martí, partiendo de un breve análisis de su obra poética. La poesía de Martí, además de una determinada práctica estética, puede también ser entendida como un acto social. En ella puede ser leída una noción de vínculo entre los pa...

Crystallization and preliminary crystallographic characterization of the extrinsic PsbP protein of photosystem II from Spinacia oleracea

International Nuclear Information System (INIS)

Kohoutová, J.; Kutá Smatanová, I.; Brynda, J.; Lapkouski, M.; Revuelta, J. L.; Arellano, J. B.; Ettrich, R.

2009-01-01

Degradation-free crystalization of thrombin-digested recombinant His-tagged PsbP protein of photosystem II from Spinacia oleracea resulting in crystals diffracting to 2.06 Å. Preliminary X-ray diffraction analysis of the extrinsic PsbP protein of photosystem II from spinach (Spinacia oleracea) was performed using N-terminally His-tagged recombinant PsbP protein overexpressed in Escherichia coli. Recombinant PsbP protein (thrombin-digested recombinant His-tagged PsbP) stored in bis-Tris buffer pH 6.00 was crystallized using the sitting-drop vapour-diffusion technique with PEG 550 MME as a precipitant and zinc sulfate as an additive. SDS–PAGE analysis of a dissolved crystal showed that the crystals did not contain the degradation products of recombinant PsbP protein. PsbP crystals diffracted to 2.06 Å resolution in space group P2 1 2 1 2 1 , with unit-cell parameters a = 38.68, b = 46.73, c = 88.9 Å

Marte: construcción del primer asentamiento humano

OpenAIRE

Sirviente Alonso, Carlos

2017-01-01

La carrera por habitar Marte no acaba más que de empezar, pero este breve espacio de tiempo ha sido más que suficiente para conocer el escenario donde se vivirá, su problemática y posibles soluciones. En el presente trabajo se estudia la viabilidad teórica de construir un asentamiento permanente de seres humanos. Dicho asentamiento tendrá lugar en un túnel de lava, donde se creará un espacio completamente hermético del exterior. Dentro, el ambiente de relaciones sociales ser...

Literatura y filosofía: Sartre, Martín-Santos y Bartleby

Directory of Open Access Journals (Sweden)

Santamaría Pargada, Antonio

2006-04-01

Full Text Available Luis Martín Santos has been, after his soon death, one of the most unfairly forgotten Spanish intellectuals. This situation happens to be even more unjust considering the success of his novel “Time of Silence” and his unfinished “Time of Destruction”. The works of this psychiatrist, philosophically formed in the existentialism tradition, tackle from psychiatric and medical studies to interpretations of Dilthey, Jaspers and Heidegger. Maybe the most important achievement made by Dr. Martín-Santos was the fact of pooling in his novels all the different fields he worked in, namely: existential philosophy, psychiatry and literature. This mutual influence leads to a clearly existential interpretation of the narrative subject and to a nihilist conception of freedom: the nothingness completely understood as Sartre did. And, consequently, the attractiveness of approaching the Spanish author through literary theories that are close to the French contemporary philosophy and the primacy, not only of the existential analysis in literature, but also of the influence of the literary character as a fiction that is able to create possible realities. That is why it is interesting to study “Bartleby the Scrivener” as a paradoxical example of the existential nothingness made flesh. To put it in a nutshell, the existential triviality, a sign of modern times, has been indeed very successfully portrayed by Martín-Santos.Luis Martín-Santos ha sido, tras su temprana muerte, uno de los grandes olvidados entre los intelectuales españoles del franquismo. Olvido especialmente injusto, teniendo en cuenta el éxito de su novela Tiempo de Silencio y su interesante proyecto inacabado Tiempo de Destrucción. La obra de este psiquiatra formado filosóficamente en el existencialismo abarca desde trabajos psiquiátricos relativos a la medicina hasta interpretaciones de Dilthey, Jaspers y Heidegger. Tal vez el mayor logro de Martín- Santos fuera el de aunar en sus

Martí y la psicología Martí e a psicologia Marti’s psychological ideas

Directory of Open Access Journals (Sweden)

Diego Jorge González Serra

2009-12-01

Full Text Available El objetivo del presente trabajo es demostrar que existe un pensamiento psicológico en José Martí. Se señala el criterio martiano de la unidad de observación y reflexión como base de la ciencia, su pensamiento multilateral y sintético, su promoción explícita de la ciencia del espíritu, su concepción sobre la unidad de lo general, lo particular y lo individual en el hombre, sus ideas sobre el pensamiento, la imaginación, la inteligencia, la afectividad, sobre la unidad del conocimiento y el afecto y sobre el espíritu de los pueblos.O objetivo deste trabalho é demonstrar que existe um pensamento psicológico de José Martí. Destacam-se o critério martiano da unidade de observação e reflexão como base da ciência, o seu pensamento multilateral e sintético, sua promoção explícita da ciência do espírito, sua concepção sobre a unidade do geral, o particular e o individual no homem, suas ideias sobre o pensamento, a imaginação, a inteligência, a afetividade, sobre a unidade do conhecimento e do afeto e sobre o espírito dos povos.The aim of the present paper is to bring to light Marti's psychological ideas. The paper discusses Marti's concepts on the science of the spirit. It deals with his beliefs on the unity of observation and thinking as the basis of science; with his multilateral and synthetic thinking; with his ideas regarding the unity of the general, the particular and the individual in man; with his concepts of thinking, imagination and intelligence, moral and motivation; with his beliefs on the unity of cognition and affection, and with his ideas on the spirit of peoples.

Definitions, qualifications and requirements for radiation protection experts, radiation protection officers and radiation workers: results of the 2 nd EUTERP Workshop

International Nuclear Information System (INIS)

Draaisma, Folkert S.; Steen, Jan van der

2008-01-01

Full text: In Europe, a common vision for maintaining competence in radiation protection is emerging, focussing on a common denominator for qualification of radiation protection experts (RPEs) and radiation protection officers (RPOs) and for mutual recognition and mobility of these professionals across the European Union. Therefore, the European Commission, D.-G. Transport and Energy, has launched an initiative to establish a European Radiation Protection Training and Education Platform (EUTERP Platform). The objectives of the Platform can be summarised as: to facilitate the trans national access to vocational education and training; to better integrate education and training into occupational radiation protection infrastructures in the Member, Candidate and Associated States of the European Union. The Platform ensures a permanent dialogue between all involved parties by the use of its web site (www.euterp.eu), by issuing newsletters and by organising workshops. The first workshop has been held in Vilnius, 22-24 May 2007, and resulted in 8 recommendations to the European Commission, the IAEA, IRPA and national authorities. The recommendations were, a.o., dealing with: new definitions for the Radiation Protection Expert (RPE) and the Radiation Protection Officer (RPO), which should be used in the revision of both the EURATOM and the International BSS; developing guidance for a methodology to compare the quality of training courses and training material; developing guidance for a standardized methodology of assessing the recognition of RP professionals as a basis for future mutual recognition, based on a description of roles and duties, education, training and work experience; developing guidance for a formal recognition process of the competence of RPEs and RPOs. The second workshop will be held on 23-25 April 2008, again in Vilnius, and will specifically discuss the above-mentioned proposals for new definitions and guidance material. It is expected that the

Martínez Sanabria en un país de artesanos

OpenAIRE

Jimena Montaña Cuéllar

2011-01-01

De la arquitectura orgánica a la arquitectura del lugar en las casas Wilkie (1962) y Calderón (1963) de Fernando Martínez Sanabria. Germán Darío Rodríguez Botero. Universidad Nacional de Colombia (Sede Bogotá), Facultad de Artes, Colección Punto aparte, Bogotá, 2007, 232 págs.

Complete mitochondrial genome sequence of black mustard (Brassica nigra; BB) and comparison with Brassica oleracea (CC) and Brassica carinata (BBCC).

Science.gov (United States)

Yamagishi, Hiroshi; Tanaka, Yoshiyuki; Terachi, Toru

2014-11-01

Crop species of Brassica (Brassicaceae) consist of three monogenomic species and three amphidiploid species resulting from interspecific hybridizations among them. Until now, mitochondrial genome sequences were available for only five of these species. We sequenced the mitochondrial genome of the sixth species, Brassica nigra (nuclear genome constitution BB), and compared it with those of Brassica oleracea (CC) and Brassica carinata (BBCC). The genome was assembled into a 232 145 bp circular sequence that is slightly larger than that of B. oleracea (219 952 bp). The genome of B. nigra contained 33 protein-coding genes, 3 rRNA genes, and 17 tRNA genes. The cox2-2 gene present in B. oleracea was absent in B. nigra. Although the nucleotide sequences of 52 genes were identical between B. nigra and B. carinata, the second exon of rps3 showed differences including an insertion/deletion (indel) and nucleotide substitutions. A PCR test to detect the indel revealed intraspecific variation in rps3, and in one line of B. nigra it amplified a DNA fragment of the size expected for B. carinata. In addition, the B. carinata lines tested here produced DNA fragments of the size expected for B. nigra. The results indicate that at least two mitotypes of B. nigra were present in the maternal parents of B. carinata.

Inconsciente genérico, feminismo y Nubosidad variable de Carmen Martín Gaite

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Zecchi, Barbara

2006-08-01

Full Text Available In a context of marked tensions between gynocritics and contemporary Spanish women writers, Carmen Martín Gaite’s novel Nubosidad variable (Variable Cloud,1992 stands out as a curious paradox. As is well known, Martín Gaite repeatedly declared not to be a feminist and even scorned women who fought for equality between both sexes. This article argues that Nubosidad variable, however, constitutes one of the best examples of a consciously feminist text. In this novel Martín Gaite applies some of the most prominent paradigms of feminist literary theory, such as the construction of a non-linear and a-chronological narration (Julia Kristeva, the attempt to create a “language of the body” (Helène Cixous, the foregrounding of a mother-daughter bond (Luisa Muraro, as well as the use of female writing as a means of self-discovery (Elaine Showalter.En un contexto de falta de comunicación entre ginocrítica y escritura femenina, la novela Nubosidad variable (1992 de Carmen Martín Gaite se presenta como una significativa paradoja. Si por un lado su autora declaró repetidas veces no ser feminista —y hasta menospreció con ironía a las mujeres que han luchado por la igualdad—, Nubosidad variable es una innegable aplicación de algunos de los más conocidos paradigmas de la teoría literaria feminista. Desde la narración no-lineal y atemporal que sigue el “tiempo de las mujeres” de Julia Kristeva, hasta el intento de crear una lengua del cuerpo a lo Hélène Cixous; desde el vínculo madre-hija teorizado por Luisa Muraro, hasta la escritura femenina como auto-descubrimiento de Elaine Showalter, esta novela representa uno de los mejores ejemplos, dentro de la narrativa contemporánea española, de lo que llamaría un texto conscientemente feminista.

Case note: ECtHR (17966/10: Manzanas Martín v. Spain)

NARCIS (Netherlands)

Ramos Martin, N.

2012-01-01

De klager, Manzanas Martín, was van 1 november 1952 tot en met 30 juni 1991 werkzaam als priester bij de Spaanse evangelische kerk. Hoewel hij gedurende deze periode loon ontving van de kerk, betaalde de laatste geen sociale verzekeringspremies met betrekking tot zijn aanstelling. Na zijn

El urbanismo de Santiago de Compostela : un plano con las plazuelas de San Martín y de San Miguel de 1709

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Miguel Taín Guzmán

1998-01-01

Full Text Available El presente artículo está dedicado al estudio de un plano inédito de 1709 donde se representan las plazuelas de San Martín y de San Miguel, en el barrio intramuros de la Puerta de la Peña de Santiago de Compostela. Gracias al referido dibujo, analizo al detalle el entramado urbano de ambos espacios públicos y los edificios que los delimitan, particularmente la iglesia de San Martín Pinario, el desaparecido Palacio del Tribunal de la Santa Inquisición y la iglesia parroquial de San Miguel dos Agros.The article focuses on the study of a 1709 inpublished street plan of two squares —San Martín and San Miguel— in the Puerta de la Peña quarter (Santiago de Compostela. This oíd drawing shows the urban framework of both public spaces and also the buildings around: San Martín Pinario, the lost Palacio del Tribunal de la Santa Inquisición and the paroquial church of San Miguel de los Agros.

Phytoremediation of 4,4'-thiodiphenol (TDP) and other bisphenol derivatives by Portulaca oleracea cv.

Science.gov (United States)

Okuhata, Hiroshi; Ninagawa, Masahiko; Takemoto, Naomichi; Ji, Hezhe; Miyasaka, Hitoshi; Iwamoto, Ai; Nagae, Masaki; Ishibashi, Yasuhiro; Arizono, Koji

2013-01-01

4,4'-Thiodiphenol (TDP) is a bisphenol derivative, and there has been no report on TDP removal by any plants or pure bacterial cultures. The removal of TDP by Portulaca oleracea cv., a floricultural herbal plant, was examined with a hydroculture system, and 97% of TDP was removed after 4 days culture. Copyright © 2012 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.

Phenolic compounds in external leaves of tronchuda cabbage (Brassica oleracea L. var. costata DC)

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Ferreres, F.; Valentão, P.; Llorach, R.; Pinheiro, C.; Cardoso, L.; Pereira, J.A.; Seabra, R.M.; Andrade, P.B.

2005-01-01

Glycosylated kaempferol derivatives from the external leaves of tronchuda cabbage ( Brassica oleracea L. var. costataDC) characterized by reversed-phase HPLC-DAD-MS/MS-ESI were kaempferol 3- Osophorotrioside- 7-O-glucoside, kaempferol 3-O- (methoxycaffeoyl/caffeoyl)sophoroside-7- O-glucoside, kaempferol 3-O-sophoroside-7-O-glucoside, kaempferol 3-O-sophorotrioside-7-O-sophoroside, kaempferol 3- O-sophoroside-7- O-sophoroside, kaempferol 3- O-tetraglucoside-7- O-sophoroside, kaempf...

Isothiocyanates, Nitriles, and Epithionitriles from Glucosinolates Are Affected by Genotype and Developmental Stage in Brassica oleracea Varieties.

Science.gov (United States)

Hanschen, Franziska S; Schreiner, Monika

2017-01-01

Vegetables of the Brassica oleracea group, such as broccoli, cauliflower, and cabbage, play an important role for glucosinolate consumption in the human diet. Upon maceration of the vegetable tissue, glucosinolates are degraded enzymatically to form volatile isothiocyanates, nitriles, and epithionitriles. However, only the uptake of isothiocyanates is linked to the cancer-preventive effects. Thus, it is of great interest to evaluate especially the isothiocyanate formation. Here, we studied the formation of glucosinolates and their respective hydrolysis products in sprouts and fully developed vegetable heads of different genotypes of the five B. oleracea varieties: broccoli, cauliflower as well as white, red, and savoy cabbages. Further, the effect of ontogeny (developmental stages) during the head development on the formation of glucosinolates and their respective hydrolysis products was evaluated at three different developmental stages (mini, fully developed, and over-mature head). Broccoli and red cabbage were mainly rich in 4-(methylsulfinyl)butyl glucosinolate (glucoraphanin), whereas cauliflower, savoy cabbage and white cabbage contained mainly 2-propenyl (sinigrin) and 3-(methylsulfinyl)propyl glucosinolate (glucoiberin). Upon hydrolysis, epithionitriles or nitriles were often observed to be the main hydrolysis products, with 1-cyano-2,3-epithiopropane being most abundant with up to 5.7 μmol/g fresh weight in white cabbage sprouts. Notably, sprouts often contained more than 10 times more glucosinolates or their hydrolysis products compared to fully developed vegetables. Moreover, during head development, both glucosinolate concentrations as well as hydrolysis product concentrations changed and mini heads contained the highest isothiocyanate concentrations. Thus, from a cancer-preventive point of view, consumption of mini heads of the B. oleracea varieties is recommended.

The influence of hydro-ethanolic extract of Portulaca oleracea L. on Th1/Th2 balance in isolated human lymphocytes.

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Askari, Vahid Reza; Rezaee, Seyed Abdolrahim; Abnous, Khalil; Iranshahi, Mehrdad; Boskabady, Mohammad Hossein

2016-12-24

The anti-inflammatory and anti-oxidants activity of Portulaca oleracea L. (P. oleracea) were mentioned in traditional texts. In previous studies, different anti-inflammatory and anti-oxidant effects of P. oleracea were demonstrated. However, the mechanism of action and immunomodulatory property of this plant are greatly unknown. In the present study, the effect of the extract of this plant on IL-4, IL10, IFN-γ and T helper (h)1/Th2 balance in non-stimulated and stimulated human lymphocytes was examined. The effect of three concentrations (160, 40 and 10µg/ml) of P. oleracea or dexamethasone were evaluated on percentage of cell proliferation and nitric oxide (NO) production as well as secretion of cytokines (IL-4, IL10 and IFN-γ) in PHA-stimulated and non-stimulated lymphocytes, and compared to control and dexamethasone as positive control (n=15 for each group). In stimulated cells, dexamethasone significantly inhibited the percentage of cell proliferation, NO production, and secretion of cytokines in comparison to control group (P<0.001 for all cases). The percentage of cell proliferation, NO production, and secretion of cytokines were significantly decreased while Th1/Th2 (IFN-γ/IL-4) and Treg/Th2 (IL-10/IL-4) balances significantly enhanced in treated groups with all three concentrations of extract compared to control group (P<0.001 for all cases). The effect of all concentrations of the extract on cell proliferation, NO production and secretion of cytokines as well as Treg/Th2 balance were significantly lower than dexamethasone (P<0.001 for all cases), but Th1/Th2 ratio obtained in the presence of only low extract concentration was lower than dexamethasone (P<0.01). Different concentrations of extract promoted Th1/Th2 and Treg/Th2 balances which may suggest the therapeutic value of the plant in inflammatory disease associated with decreased Th1/Th2 balance such as asthma or cancers. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

Exogenous Methyl Jasmonate and Salicylic Acid Induce Subspecies-Specific Patterns of Glucosinolate Accumulation and Gene Expression in Brassica oleracea L.

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Yi, Go-Eun; Robin, Arif Hasan Khan; Yang, Kiwoung; Park, Jong-In; Hwang, Byung Ho; Nou, Ill-Sup

2016-10-24

Glucosinolates have anti-carcinogenic properties. In the recent decades, the genetics of glucosinolate biosynthesis has been widely studied, however, the expression of specific genes involved in glucosinolate biosynthesis under exogenous phytohormone treatment has not been explored at the subspecies level in Brassica oleracea . Such data are vital for strategies aimed at selective exploitation of glucosinolate profiles. This study quantified the expression of 38 glucosinolate biosynthesis-related genes in three B. oleracea subspecies, namely cabbage, broccoli and kale, and catalogued associations between gene expression and increased contents of individual glucosinolates under methyl jasmonate (MeJA) and salicylic acid (SA) treatments. Glucosinolate accumulation and gene expression in response to phytohormone elicitation was subspecies specific. For instance, cabbage leaves showed enhanced accumulation of the aliphatic glucoiberin, progoitrin, sinigrin and indolic neoglucobrassicin under both MeJA and SA treatment. MeJA treatment induced strikingly higher accumulation of glucobrassicin (GBS) in cabbage and kale and of neoglucobrassicin (NGBS) in broccoli compared to controls. Notably higher expression of ST5a (Bol026200), CYP81F1 (Bol028913, Bol028914) and CYP81F4 genes was associated with significantly higher GBS accumulation under MeJA treatment compared to controls in all three subspecies. CYP81F4 genes, trans-activated by MYB34 genes, were expressed at remarkably high levels in all three subspecies under MeJA treatment, which also induced in higher indolic NGBS accumulation in all three subspecies. Remarkably higher expression of MYB28 (Bol036286), ST5b , ST5c , AOP2 , FMOGS-OX5 (Bol031350) and GSL-OH (Bol033373) was associated with much higher contents of aliphatic glucosinolates in kale leaves compared to the other two subspecies. The genes expressed highly could be utilized in strategies to selectively increase glucosinolate compounds in B. oleracea

Florística e estrutura fitossociológica em floresta ombrófila densa submontana na barragem do rio São Bento, Siderópolis, Estado de Santa Catarina - DOI: 10.4025/actascibiolsci.v31i4.3345 Floristic composition and phytosociological structure in a submontane ombrophilous dense forest at São Bento river dam, Siderópolis, Santa Catarina State - DOI: 10.4025/actascibiolsci.v31i4.3345

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João André Jarenkow

2009-08-01

Full Text Available Apresentam-se os resultados de levantamentos florístico e fitossociológico em remanescente de Floresta Ombrófila Densa Submontana circunjacente à barragem do rio São Bento, objetivando fornecer dados primários para ações de restauração e conservação desta formação. A área está localizada no Sul de Santa Catarina, município de Siderópolis. Utilizou-se como área amostral um hectare e foram registrados indivíduos com DAP ≥ 5 cm e quantificados seus descritores estruturais. Foram identificadas 107 espécies, pertencentes a 42 famílias botânicas, totalizando 1.715 indivíduos. As espécies com maiores valores de importância (VI foram Euterpe edulis Mart., Casearia sylvestris Sw. e Bathysa australis (St.-Hil. K. Schum. Entre as espécies identificadas, encontrou-se elevado índice de zoofilia e zoocoria. Pela característica florística e abundância de serapilheira, a área encontra-se em estádio avançado de regeneração naturalAiming to provide primary data to be used in restoration programs, data from a floristic and phytosociological survey at a Submontane Ombrophilous Dense Forest remnant around São Bento river dam (Siderópolis municipality, Santa Catarina State, southern Brazil are presented. All tree individuals with a diameter at breast height (DBH ≥ 5 cm were recorded (1 ha plot. 1,715 individuals belonging to 107 species and 42 botanical families were identified. Euterpe edulis Mart., Casearia sylvestris Sw. and Bathysa australis (St.-Hil. K.Schum. were the species with higher values of structural importance. High index of zoophily and zoochory were registered among the identified species. From the floristic composition and litter abundance, it can be assumed that the studied area corresponds to an advanced stage of natural regeneration

A theoretical model for explaining the effect of physical manipulation on nitrate uptake in spinach (Spinacia oleracea L)

NARCIS (Netherlands)

terSteege, MW; Stulen, [No Value

1997-01-01

Experiments with spinach (Spinacia oleracea L., cv. Subito) plants in which net nitrate uptake rate (NNUR) and nitrate influx and efflux were measured showed that handling the plants affected the results considerably. Both nitrate influx and efflux changed after physical manipulation of the plants,

Anti-Diabetic Effect of Portulaca oleracea L. Polysaccharideandits Mechanism in Diabetic Rats.

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Bai, Yu; Zang, Xueli; Ma, Jinshu; Xu, Guangyu

2016-07-25

Diabetes mellitus (DM) is a metabolic syndrome caused by multiple genetic and environmental factors. Traditional Chinese medicine preparations have shown a comprehensive and function-regulating characteristic. Purslane (Portulaca oleracea L.) is an annual succulent herb. Currently, there have been some related reports on the treatment of diabetes with purslane. The current study was designed to separate and purify the polysaccharide, a systematic study of its physical and chemical properties, antioxidant activity, and anti-diabetic mechanism, in order to provide a theoretical basis for the development of drugs of purslane. A crude water soluble polysaccharide extracted from purslane was named CPOP (crude Portulaca oleracea L. polysaccharide). Effects of CPOP on bodyweight, glucose tolerance test (GTT), fasting blood glucose (FBG), fasting serum insulin (FINS), insulin sensitivity index (ISI), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), methane dicarboxylic aldehyde (MDA), and superoxygen dehydrogenises (SOD) were investigated. The results indicate that the oral administration of CPOP could significantly increase the body weight and significantly improve the glucose tolerance in diabetic rats. Meanwhile, CPOP could significantly reduce the FBG level, and elevate the FINS level and ISI value in diabetic rats. In addition, CPOP could significantly reduce TNF-α and IL-6 levels in diabetic rats; CPOP could also reduce MDA and SOD activities in the liver tissue of diabetic rats. These results suggest that the anti-diabetic effect of CPOP may be associated with its antioxidant and anti-inflammatory effects.

Anti-Diabetic Effect of Portulaca oleracea L. Polysaccharideandits Mechanism in Diabetic Rats

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Yu Bai

2016-07-01

Full Text Available Diabetes mellitus (DM is a metabolic syndrome caused by multiple genetic and environmental factors. Traditional Chinese medicine preparations have shown a comprehensive and function-regulating characteristic. Purslane (Portulaca oleracea L. is an annual succulent herb. Currently, there have been some related reports on the treatment of diabetes with purslane. The current study was designed to separate and purify the polysaccharide, a systematic study of its physical and chemical properties, antioxidant activity, and anti-diabetic mechanism, in order to provide a theoretical basis for the development of drugs of purslane. A crude water soluble polysaccharide extracted from purslane was named CPOP (crude Portulaca oleracea L. polysaccharide. Effects of CPOP on bodyweight, glucose tolerance test (GTT, fasting blood glucose (FBG, fasting serum insulin (FINS, insulin sensitivity index (ISI, interleukin-6 (IL-6, tumor necrosis factor-α (TNF-α, methane dicarboxylic aldehyde (MDA, and superoxygen dehydrogenises (SOD were investigated. The results indicate that the oral administration of CPOP could significantly increase the body weight and significantly improve the glucose tolerance in diabetic rats. Meanwhile, CPOP could significantly reduce the FBG level, and elevate the FINS level and ISI value in diabetic rats. In addition, CPOP could significantly reduce TNF-α and IL-6 levels in diabetic rats; CPOP could also reduce MDA and SOD activities in the liver tissue of diabetic rats. These results suggest that the anti-diabetic effect of CPOP may be associated with its antioxidant and anti-inflammatory effects.

La Terraformació de Mart: desenvolupament d'un model climàtic latitudinal per estudiar l'ecopoiesi planetària de Mart

OpenAIRE

Garcia Solà, Daniel

2016-01-01

Les característiques del planeta Mart fan que sigui un dels millors candidats per durhi a terme un procés d’enginyeria planetària conegut com a terraformació amb l’objectiu d’aconseguir una atmosfera habitable i respirable per als éssers humans. La primera etapa de la terraformació, anomenada ecopoiesi, consisteix a aconseguir les condicions climàtiques mínimes favorables per a establir un ecosistema on es puguin introduir microorganismes extremòfils, els quals ajudin a generar...

Impact of cadmium on forage kale (Brassica oleracea var. viridis cv "Prover") after 3-,10- and 56-day exposure to a Cd-spiked field soil.

Science.gov (United States)

Bernard, Fabien; Dumez, Sylvain; Lemière, Sébastien; Platel, Anne; Nesslany, Fabrice; Deram, Annabelle; Vandenbulcke, Franck; Cuny, Damien

2018-03-15

Cadmium (Cd) is a highly toxic element for living organisms and is widespread in metal-contaminated soils. As organisms which can grow up on these polluted areas, plants have some protection mechanisms against Cd issues. Among the plant kingdom, the Brassicaceae family includes species which are known to be able to tolerate and accumulate Cd in their tissues. In this study, Brassica oleracea var. viridis cv "Prover" was exposed to a range of artificially Cd-contaminated soils (from 2.5 up to 20 mg kg -1 ) during 3, 10, and 56 days and the effects on life traits, photosynthesis activity, antioxidant enzymatic activities were studied. Metal accumulation was quantified, as well as DNA damage, by means of the comet assay and immunodetection of 8-OHdG levels. Globally, B. oleracea was relatively tolerant to those Cd exposures. However, comet assay and detection of 8-OHdG revealed some DNA damage but which are not significant. According to metal accumulation analysis, B. oleracea var. viridis cv Prover could be a good candidate for alternative growing in contaminated areas.

Qualidade do palmito da palmeira real em conserva Industrial adaptability of the heart of palm from Archontophoenix alexandrae and A. cunninghamiana

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Shirley Aparecida Garcia Berbari

2008-12-01

Full Text Available A pesquisa teve como objetivo avaliar o aproveitamento industrial e a qualidade do palmito da palmeira Real Australiana (Archontophoenix alexandrae e A. cunninghamiana em comparação aos palmitos das palmeiras Açaí (Euterpe oleracea e Pupunha (Bactris gasipaes. O palmito foi processado como conserva acidificada e pasteurizada e submetido às análises de comprimento e diâmetro dos toletes, peso bruto, líquido e drenado, espaço livre, vácuo, pH, avaliação microbiológica, cor e textura objetivas e avaliação sensorial quanto à cor, aparência, textura, sabor e preferência geral. Os resultados da pesquisa mostraram que o palmito da palmeira Real é adequado para processamento em forma de conserva acidificada e pasteurizada, apresentando características sensoriais semelhantes às das outras variedades. Do ponto de vista da estabilidade ao armazenamento, as análises físico-químicas e microbiológicas mostraram que o palmito da palmeira Real em conserva se apresentou estável durante o período de doze meses de armazenamento. Pode-se afirmar então, que a palmeira Real Australiana apresenta boa qualidade em termos de industrialização na forma de palmito em conserva acidificada e pasteurizada.The objective of this research was to evaluate the industrial adaptability of the heart of palm from Archontophoenix alexandrae e A. cunninghamiana in comparison with "Açaí" (Euterpe oleracea and "Pupunha" (Bactris gasipaes hearts. The heart of palm was canned acidified and pasteurized and analyzed in terms of stems length and diameter, the gross, net and drained weight, headspace; pH; vacuum; microbiological evaluation, objective color and texture and sensorial evaluation of color, appearance, texture, taste and general preference. The results showed that Australian royal palm is adequate for the process of acidified canning and pasteurization since it presented sensorial characteristics similar to other varieties. During 12 months of storage

Ilu võitlus koleduse välja vastu / Rebekka Lotman ; kommenteerinud Mart Anderson

Index Scriptorium Estoniae

Lotman, Rebekka, 1978-

2009-01-01

Konkursside "25 kauneimat Eesti raamatut" ja "Viis kauneimat Eesti lasteraamatut" võidutööde näitus Eesti Rahvusraamatukogus. Võidutööde valikut kommenteerib žürii esimees Mart Anderson. Loetletud 2008. aasta 25 kaunimat raamatut. Nimekiri: 2008. aasta 25 kauneimat raamatut

COMPLEX HOST-PARASITE SYSTEMS IN MARTES: IMPLICATIONS FOR CONSERVATION BIOLOGY OF ENDEMIC FAUNAS.

Science.gov (United States)

Complex assemblages of hosts and parasites reveal insights about biogeography and ecology and inform us about processes which serve to structure faunal diversity and the biosphere in space and time. Exploring aspects of parasite diversity among martens (species of Martes) and other mustelids reveal...

The BioMart community portal: an innovative alternative to large, centralized data repositories

Science.gov (United States)

The BioMart Community Portal (www.biomart.org) is a community-driven effort to provide a unified interface to biomedical databases that are distributed worldwide. The portal provides access to numerous database projects supported by 30 scientific organizations. It includes over 800 different biologi...

Una monografía de Manuel Martín Salazar sobre la tuberculosis (Cádiz, 1887)

OpenAIRE

Herrera-Rodríguez, Francisco

2017-01-01

En este artículo se estudia la monografía de Manuel Martín Salazar sobre la tuberculosis, publicada en Cádiz, en 1887; además del prólogo de Benito Alcina Rancé, esta obra presenta apartados específicos sobre la etiología de la tuberculosis, el contagio, la herencia, la vacunación, la desinfección, la alimentación y el clima, así como epígrafes dedicados a la higiene social y a la tuberculosis en el ejército. Esta obra de Martín Salazar no ha recibido la atención que se merece, sobre todo ten...

Two new alkaloids from Portulaca oleracea and their cytotoxic activities.

Science.gov (United States)

Tian, Jin-Long; Liang, Xiao; Gao, Pin-Yi; Li, Dan-Qi; Sun, Qian; Li, Ling-Zhi; Song, Shao-Jiang

2014-01-01

Two new alkaloids named (3R)-3,5-bis(3-methoxy-4-hydroxyphenyl)-2,3-dihydro-2(1H)-pyridinone (1) and 1,5-dimethyl-6-phenyl-1,2-dihydro-1,2,4-triazin-3(2H)-one (2), together with two known compounds (7'R)-N-feruloyl normetanephrine (3) and N-trans-feruloyl tyramine (4) were isolated from the air-dried aerial parts of Portulaca oleracea L. Their structures and configurations were elucidated by spectroscopic methods including 1D NMR, 2D NMR, and HR-MS techniques. In addition, compounds 1-4 were tested for in vitro cytotoxic activities against human lung (K562 and A549) and breast (MCF-7 and MDA-MB-435) cancer cell lines.

Conformational changes in spinach (Spinacia oleracea leaves chloroplasts in vivo

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Janina Godziemba-Czyż

2015-01-01

Full Text Available Changes in the surface area of chloroplasts from intact cells of spinach leaves (\tSpinacia oleracea induced by blue (370—500 nm and red (600- 850 nm light of various intensity (102 - 5x105 erg cm-1s-1 were investigated. The changes are deseribed in terms of mean surface area in , μm2 and frequency of oocurrence of surface size classes. Low intensity blue light caused enlargement of the chloroplast surface (as compared with that in darkness, whereas high intensity light markedly reduced it. Exposure of chloroplasts to red light produces an increase of the surface in proportion to the intensity of the light and irradiation time.

La poesía como vaso comunicante entre los Cuadernos de apuntes de José Martí y los de José Lezama Lima

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Caridad Atencio

2015-09-01

Full Text Available Este artículo estudia los llamados Diarios del poeta José Lezama Lima, que recogen anotaciones suyas entre los años 1939-1949 y entre 1956-1958, para analizar cómo se refleja en ambos textos el interés por la poesía y la reflexión acerca de la misma. Sus anotaciones son comparadas con las de José Martí, percibiendo que mientras que la poesía era para Martí la forma suprema de la literatura, para Lezama llegó a ser un método de conocimiento de la realidad, la categoría central a la que conduce su pensamiento estético. Se pretende demostrar además cómo Lezama parte de las ideas de Martí sobre la poesía para llegar a tener ideas propias y luego trascendentes.   This article studies what are known as the Diaries of poet José Lezama Lima, in which his notes taken between 1939-1949 and 1956-1958 are gathered in order to analyze how both texts reflect his interest towards poetry as well as his reflections about it. His notes are compared with those of José Martí, revealing the fact that whereas for Martí, poetry was the supreme manifestation of literature; Lezama saw it as a method for acquiring knowledge of reality, the central category to which his aesthetic thinking leads. An attempt is made to further showcase the fact that Lezama starts off with Martí's ideas about poetry in order to later develop his own, which would at a later date become transcendental.

Maytensifolone, a new triterpene from Maytenus distichophylla Mart. ex Reissek

Energy Technology Data Exchange (ETDEWEB)

Duarte, Marcelo Cavalcante; Tavares, Josean Fechine; Madeiro, Sara Alves L.; Costa, Vicente Carlos O.; Barbosa Filho, Jose Maria; Silva, Marcelo Sobral da, E-mail: marcelosobral.ufpb@gmail.com [Universidade Federal da Paraiba (UFPB), Joao Pessoa, PB (Brazil). Departamento de Ciencias Farmaceuticas; Agra, Maria de Fatima [Universidade Federal da Paraiba (UFPB), Joao Pessoa, PB (Brazil). Centro de Biotecnologia. Departamento de Biotecnologia; Braz Filho, Raimundo [Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, RJ (Brazil). Lab. de Ciencias Quimicas

2013-10-15

Phytochemical study of the leaves of Maytenus distichophylla Mart. ex Reissek led to the isolation of the new triterpene 3,16,21-trioxo-6{beta},12{alpha}-dihydroxy-1-en-friedelane, named maytensifolone, along with the known triterpenes 3-oxofriedelane, 3,12-dioxofriedelane, 3{beta}-hydroxyfriedelane, 3-oxo-29-hydroxyfriedelane, 3-oxo-12{alpha}-hydroxyfriedelane and 3-oxo- 30-hydroxyfriedelane. Their structural identification was based on spectroscopic methods and comparison with literature data. (author)

The association between chromaticity, phenolics, carotenoids, and in vitro antioxidant activity of frozen fruit pulp in Brazil: an application of chemometrics.

Science.gov (United States)

Zielinski, Acácio Antonio Ferreira; Ávila, Suelen; Ito, Vivian; Nogueira, Alessandro; Wosiacki, Gilvan; Haminiuk, Charles Windson Isidoro

2014-04-01

A total of 19 Brazilian frozen pulps from the following fruits: açai (Euterpe oleracea), blackberry (Rubus sp.), cajá (Spondias mombin), cashew (Anacardium occidentale), cocoa (Theobroma cacao), coconut (Cocos nucifera), grape (Vitis sp.), graviola (Annona muricata), guava (Psidium guajava), papaya (Carica papaya), peach (Prunus persica), pineapple (Ananas comosus), pineapple and mint (A. comosus and Mentha spicata), red fruits (Rubus sp. and Fragaria sp.), seriguela (Spondias purpurea), strawberry (Fragaria sp.), tamarind (Tamarindus indica), umbu (Spondias tuberosa), and yellow passion fruit (Passiflora edulis) were analyzed in terms of chromaticity, phenolic compounds, carotenoids, and in vitro antioxidant activity using ferric reducing antioxidant power (FRAP) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) assays. Data were processed using principal component analysis (PCA) and hierarchical cluster analysis (HCA). Antioxidant capacity was measured by DPPH and FRAP assays, which showed significant (P antioxidant activity. © 2014 Institute of Food Technologists®

Valmib valus lavalugu perest : Athenas jõuab vaatajate ette Mart Kivastiku suhtedraama / Raimu Hanson

Index Scriptorium Estoniae

Hanson, Raimu, 1957-

2008-01-01

SA Eesti Teatri Festival esietendab 4. mail Athena keskuses Margus Kasterpalu lavastuses Mart Kivastiku näidendit "Meie isa, kes sa oled ..." Mängivad Vanemuise näitlejad Marika Aidla, Hannes Kaljujärv, Tanel Jonas ning Leino Rei

Introgression of Black Rot Resistance from Brassica carinata to Cauliflower (Brassica oleracea botrytis Group) through Embryo Rescue.

Science.gov (United States)

Sharma, Brij B; Kalia, Pritam; Singh, Dinesh; Sharma, Tilak R

2017-01-01

Black rot caused by Xanthomonas campestris pv. campestris ( Xcc ) is a very important disease of cauliflower ( Brassica oleracea botrytis group) resulting into 10-50% yield losses every year. Since there is a dearth of availability of resistance to black rot disease in B. oleracea (C genome), therefore exploration of A and B genomes was inevitable as they have been reported to be potential reservoirs of gene(s) for resistance to black rot. To utilize these sources, interspecific hybrid and backcross progeny (B 1 ) were generated between cauliflower "Pusa Sharad" and Ethiopian mustard "NPC-9" employing in vitro embryo rescue technique. Direct ovule culture method was better than siliqua culture under different temperature regime periods. Hybridity testing of F 1 inter-specific plants was carried out using co-dominant SSR marker and Brassica B and C genome-specific (DB and DC) primers. Meiosis in the di-genomic (BCC) interspecific hybrid of B. oleracea botrytis group (2 n = 18, CC) × B. carinata (2 n = 4x = 34, BBCC) was higly disorganized and cytological analysis of pollen mother cells revealed chromosomes 2 n = 26 at metaphase-I. Fertile giant pollen grain formation was observed frequently in interspecific F 1 hybrid and BC 1 plants. The F 1 inter-specific plants were found to be resistant to Xcc race 1. Segregation distortion was observed in BC 1 generation for black rot resistance and different morphological traits. The At1g70610 marker analysis confirmed successful introgression of black rot resistance in interspecific BC 1 population. This effort will go a long way in pyramiding gene(s) for resistance against black rot in Cole crops, especially cauliflower and cabbage for developing durable resistance, thus minimize dependency on bactericides.

Introgression of Black Rot Resistance from Brassica carinata to Cauliflower (Brassica oleracea botrytis Group) through Embryo Rescue

Science.gov (United States)

Sharma, Brij B.; Kalia, Pritam; Singh, Dinesh; Sharma, Tilak R.

2017-01-01

Black rot caused by Xanthomonas campestris pv. campestris (Xcc) is a very important disease of cauliflower (Brassica oleracea botrytis group) resulting into 10–50% yield losses every year. Since there is a dearth of availability of resistance to black rot disease in B. oleracea (C genome), therefore exploration of A and B genomes was inevitable as they have been reported to be potential reservoirs of gene(s) for resistance to black rot. To utilize these sources, interspecific hybrid and backcross progeny (B1) were generated between cauliflower “Pusa Sharad” and Ethiopian mustard “NPC-9” employing in vitro embryo rescue technique. Direct ovule culture method was better than siliqua culture under different temperature regime periods. Hybridity testing of F1 inter-specific plants was carried out using co-dominant SSR marker and Brassica B and C genome-specific (DB and DC) primers. Meiosis in the di-genomic (BCC) interspecific hybrid of B. oleracea botrytis group (2n = 18, CC) × B. carinata (2n = 4x = 34, BBCC) was higly disorganized and cytological analysis of pollen mother cells revealed chromosomes 2n = 26 at metaphase-I. Fertile giant pollen grain formation was observed frequently in interspecific F1 hybrid and BC1 plants. The F1 inter-specific plants were found to be resistant to Xcc race 1. Segregation distortion was observed in BC1 generation for black rot resistance and different morphological traits. The At1g70610 marker analysis confirmed successful introgression of black rot resistance in interspecific BC1 population. This effort will go a long way in pyramiding gene(s) for resistance against black rot in Cole crops, especially cauliflower and cabbage for developing durable resistance, thus minimize dependency on bactericides. PMID:28769959

Introgression of Black Rot Resistance from Brassica carinata to Cauliflower (Brassica oleracea botrytis Group through Embryo Rescue

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Brij B. Sharma

2017-07-01

Full Text Available Black rot caused by Xanthomonas campestris pv. campestris (Xcc is a very important disease of cauliflower (Brassica oleracea botrytis group resulting into 10–50% yield losses every year. Since there is a dearth of availability of resistance to black rot disease in B. oleracea (C genome, therefore exploration of A and B genomes was inevitable as they have been reported to be potential reservoirs of gene(s for resistance to black rot. To utilize these sources, interspecific hybrid and backcross progeny (B1 were generated between cauliflower “Pusa Sharad” and Ethiopian mustard “NPC-9” employing in vitro embryo rescue technique. Direct ovule culture method was better than siliqua culture under different temperature regime periods. Hybridity testing of F1 inter-specific plants was carried out using co-dominant SSR marker and Brassica B and C genome-specific (DB and DC primers. Meiosis in the di-genomic (BCC interspecific hybrid of B. oleracea botrytis group (2n = 18, CC × B. carinata (2n = 4x = 34, BBCC was higly disorganized and cytological analysis of pollen mother cells revealed chromosomes 2n = 26 at metaphase-I. Fertile giant pollen grain formation was observed frequently in interspecific F1 hybrid and BC1 plants. The F1 inter-specific plants were found to be resistant to Xcc race 1. Segregation distortion was observed in BC1 generation for black rot resistance and different morphological traits. The At1g70610 marker analysis confirmed successful introgression of black rot resistance in interspecific BC1 population. This effort will go a long way in pyramiding gene(s for resistance against black rot in Cole crops, especially cauliflower and cabbage for developing durable resistance, thus minimize dependency on bactericides.

Canine Distemper in an isolated population of fishers (Martes pennanti) from California

Science.gov (United States)

Stefan m. Keller; Mourad Gabriel; Karen A. Terio; Edward J. Dubovi; Elizabeth Van Wormer; Rick Sweitzer; Reginald Barret; Craig Thompson; Kathryn Purcell; Linda Munson

2012-01-01

Four fishers (Martes pennanti) from an insular population in the southern Sierra Nevada Mountains, California, USA died as a consequence of an infection with canine distemper virus (CDV) in 2009. Three fishers were found in close temporal and spatial relationship; the fourth fisher died 4 mo later at a 70 km distance from the initial group. Gross...

Ácidos grasos, actividad antioxidante y antibacterial en extractos de verdolaga. (Portulaca Oleracea)

OpenAIRE

Moncayo Espín, Cristian Roberto

2015-01-01

Desde tiempos prehistóricos las plantas medicinales han sido utilizadas para el tratamiento de diversas afecciones. Estas plantas han sido objeto de un sin número de investigaciones con el fin de encontrar propiedades antioxidantes, antimicrobianas y antimutagénicas. Portulaca oleracea o verdolaga, es una hierba nativa, rica en ácidos grasos omega3 y vitaminas, que ha sido usada con fines medicinales. En el Ecuador, un país rico en biodiversidad, se han encontrado dos especies endémicas perte...

Phytotoxic Effects of Cinnamic Acid on Cabbage (Brassica oleracea var. capitata

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Singh, N. B.

2013-04-01

Full Text Available The present study deals with the effects of exogenous application of cinnamic acid (CA on growth and metabolism in growing seedlings of Brassica oleracea var. capitata (cabbage in hydroponic culture. CA was added at 0.5, 1.0 and 1.5 mM concentrations. CA has shown inhibitory effects on shoot and root length, fresh and dry weight of seedlings. CA significantly decreased the photosynthetic pigments, nitrate reductase activity and protein content. Graded concentrations of CA increased lipid peroxidation and sugar content. The increasing concentrations of CA significantly increased the antioxidative enzyme activities viz. superoxide dismutase, catalase, peroxidase against the oxidative stress caused by CA.

La técnica narrativa del espejo en Carmen de Icaza (1899-1979 y en Carmen Martín Gaite (1925-2000 / The mirror’s narrative technique in Carmen de Icaza (1899-1979 and in Carmen Martín Gaite (1925-2000

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Carmen Fragero Guerra

2013-01-01

Full Text Available Resumen: El texto muestra algunas coincidencias entre las técnicas narrativas de la olvidada novelista Carmen de Icaza (1899-1979 y Carmen Martín Gaite (1925-2000. Analizamos en La fuente enterrada (1947 y en Yo, la reina (1950 de Carmen de Icaza el uso del espejo como una técnica narrativa para describir la apariencia física de los personajes y sus sentimientos interiores. Luego, estudiamos cómo estos dos aspectos han sido tomados por Carmen Martín Gaite y desarrollados en un modo más amplio e imaginativo. Abstract: The text shows some coincidences in narrative techniques between the forgotten novelist Carmen de Icaza (1899-1979 and Carmen Martín Gaite (1925-2000. We analyze in La Fuente Enterrada (1947 and in Yo, la Reina (1950 by Carmen de Icaza the use of mirror as a narrative technique intended to describe the characters’ appearance and their inner feelings. Then we study how this aspect has been taken by Carmen Martin Gaite and developed in a broader and more imaginative way.

Multi scale habitat relationships of Martes americana in northern Idaho, U.S.A.

Science.gov (United States)

Tzeidle N. Wasserman; Samuel A. Cushman; David O. Wallin; Jim Hayden

2012-01-01

We used bivariate scaling and logistic regression to investigate multiple-scale habitat selection by American marten (Martes americana). Bivariate scaling reveals dramatic differences in the apparent nature and strength of relationships between marten occupancy and a number of habitat variables across a range of spatial scales. These differences include reversals in...

Herbivore-induced plant responses in Brassica oleracea prevail over effects of constitutive resistance and result in enhanced herbivore attack

NARCIS (Netherlands)

Poelman, E.H.; Loon, van J.J.A.; Dam, van N.M.; Vet, L.E.M.; Dicke, M.

2010-01-01

2. Here we studied the effect of early-season herbivory by caterpillars of Pieris rapae on the composition of the insect herbivore community on domesticated Brassica oleracea plants. We compared the effect of herbivory on two cultivars that differ in the degree of susceptibility to herbivores to

Mida arvatakse omavalitsustes koolivõrgu optimeerimisest? / Mart Järvik, Maris Liiders, Peeter Aas, Kaarin Veinbergs

Index Scriptorium Estoniae

2012-01-01

Arvamust avaldasid Järvakandi vallavanem, Raplamaa omavalitsuste liidu esimees Mart Järvik, Harju maavalitsuse haridus- ja sotsiaalosakonna juhataja Maris Liiders, Põlva maavalitsuse haridus- ja sotsiaalosakonna juhataja Peeter Aas, Ida-Viru maavalitsuse haridus- ja sotsiaalosakonna juhataja Kaarin Veinbergs

Salinity Induced Changes in β-carotene, Thiamine, Riboflavin and Ascorbic Acid Content in Spinacia oleracea L. var. All Green

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Anjali Ratnakar

2014-05-01

Full Text Available Vitamins are the functional components of various enzyme-regulated biochemical reactions occurring to create energy. Vitamin contents of plants are known to show altered metabolism under the influence of salinity. Not much of work has been done on the influence of salinity on the vitamin content in higher plants. Present study was carried out to study the influence of NaCl salinity on vitamin content in the leaves of Spinacia oleracea. Spinacia oleracea plants were grown in earthen pots and were subjected to different concentrations of saline water (NaCl treatment. Control plants were irrigated with tap water. Treatments started after the seedling emergence and continued till the plants were 45 day old. Mature leaves of these plants were harvested and used for studies. Thiamine and riboflavin content were found to increase with increase in NaCl concentration, however, β-carotene was found to decrease with increasing level of NaCl in the growth medium.

Genome-wide identification and comparative expression analysis reveal a rapid expansion and functional divergence of duplicated genes in the WRKY gene family of cabbage, Brassica oleracea var. capitata.

Science.gov (United States)

Yao, Qiu-Yang; Xia, En-Hua; Liu, Fei-Hu; Gao, Li-Zhi

2015-02-15

WRKY transcription factors (TFs), one of the ten largest TF families in higher plants, play important roles in regulating plant development and resistance. To date, little is known about the WRKY TF family in Brassica oleracea. Recently, the completed genome sequence of cabbage (B. oleracea var. capitata) allows us to systematically analyze WRKY genes in this species. A total of 148 WRKY genes were characterized and classified into seven subgroups that belong to three major groups. Phylogenetic and synteny analyses revealed that the repertoire of cabbage WRKY genes was derived from a common ancestor shared with Arabidopsis thaliana. The B. oleracea WRKY genes were found to be preferentially retained after the whole-genome triplication (WGT) event in its recent ancestor, suggesting that the WGT event had largely contributed to a rapid expansion of the WRKY gene family in B. oleracea. The analysis of RNA-Seq data from various tissues (i.e., roots, stems, leaves, buds, flowers and siliques) revealed that most of the identified WRKY genes were positively expressed in cabbage, and a large portion of them exhibited patterns of differential and tissue-specific expression, demonstrating that these gene members might play essential roles in plant developmental processes. Comparative analysis of the expression level among duplicated genes showed that gene expression divergence was evidently presented among cabbage WRKY paralogs, indicating functional divergence of these duplicated WRKY genes. Copyright © 2014 Elsevier B.V. All rights reserved.

Wal-Mart, caballo de Troya de la globalización

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René Paul Desse

2009-01-01

Full Text Available Creada en 1962 por Sam Walton, una pequeña empresa de distribución norteamericana se convertirá rápidamente en la primera empresa mundial. Desde Bentonville, Arkansas, hasta el interior de China, Wal-Mart muestra un camino bastante clásico que va desde la sede principal de la empresa hacia una proliferación de sus tiendas en una quincena de países. Con una facturación de 405 mil millones de dólares en 2008, la empresa de distribución número uno en el mundo fue sobrepasada en abril de 2009 por la empresa petrolera Exxon Mobil en la clasificación de las quinientas empresas mundiales más importantes. Pero a diferencia de otras grandes transnacionales como Exxon Mobil o Microsoft, Wal-Mart, la primera empresa mundial de distribución, tiene que adaptarse al medio ambiente local con el fin de atraer a un máximo de consumidores. El artículo propone una aproximación a escala múltiple de las estrategias de desarrollo de esta firma internacional. Así, la aplicación de un análisis espacial es apropiada para esclarecer los vínculos existentes entre los territorios y las estrategias de los actores a diferentes escalas geográficas.

Morphological characterization of Kielmeyera coriacea Mart. cork from brazilian cerrado

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Polliana D`Angelo Rios

2011-09-01

Full Text Available Kielmeyera coriacea Mart., known as “pau-santo”, is mentioned in the literature as the main tree species which produces cork of the Brazilian Cerrado. The purpose of this study was to describe the morphological aspect of Kielmeyera coriacea (“pau-santo” cork cells through its microscopic structure and to compare it with the cellular morphology of Quercus suber (cork oak, which is the main cork producing species worldwide. The bark from three trees of the species Kielmeyera coriacea Mart. was collected randomly at points 1.30 m above the ground, with four repetitions per sample. Samples came from native stands situated in the region of Luminárias - MG, Brazil. The study of morphological characteristics was conducted by counting the number of sides of the cells, and measuring the dimensions of the cells from images obtained by scanning electron microscopy (SEM. Images were analyzed using the LEOUIF software. The distribution in faces and edges of cork cells from Kielmeyera coriacea, was observed to have from 4 to 8 sides, with a predominance of hexagonal cells, similar to Quercus suber. The averages of height and thickness of the cell walls were 40 to 70 µm and 1.5 to 2.0 µm respectively, indicating cells from an early growth season. Both height and thickness were observed to be greater than those present in Quercus suber

Assessing the anticancer compounds Se-methylselenocysteine and glucosinolates in Se-biofortified broccoli (brassica oleracea L. var. italica) sprouts and florets

Science.gov (United States)

Broccoli (Brassica oleracea L. var. italica) is a rich source of chemopreventive compounds. Here, we evaluated and compared the effect of selenium (Se) treatment on the accumulation of anticancer compound Se-methylselenocysteine (SeMSCys) and glucosinolates in broccoli sprouts and florets. Total Se ...

Rapid screening for cyclo-dopa and diketopiperazine alkaloids in crude extracts of Portulaca oleracea L. using liquid chromatography/tandem mass spectrometry.

Science.gov (United States)

Xing, Jie; Yang, Zijuan; Lv, Beibei; Xiang, Lan

2008-05-01

A simple and rapid qualitative liquid chromatography/tandem mass spectrometry (LC/MS/MS) method was developed and validated for screening cyclo-dopa and diketopiperazine alkaloids in crude extracts of Portulaca oleracea L. at sub-ppm levels. An electrospray ionization orbitrap mass spectrometer, which provides accurate full scan MS and MS/MS data, was used in this study. After simple extraction with ethanol and purification by AB-8 resin, the extracts were subjected to LC/MS/MS analysis. A high mass tolerance (10 ppm) was used in the initial screening to filter the full scan MS data. The cyclo-dopa and diketopiperazine alkaloid standards gave limits of detection (LODs) at or below 5 ng/mL. The results also indicated that the method had an acceptable precision for day-to-day use in the identification of compounds. The alkaloids could be identified based on their MS/MS data, elemental compositions, and retention behavior. This system was used to assay trace amounts of cyclo-dopa and diketopiperazine alkaloids in crude extracts of Portulaca oleracea L., leading to the identification of 5/2 confirmed/unconfirmed cyclo-dopa and 7/6 confirmed/unconfirmed diketopiperazine alkaloids, respectively. The screening method considerably reduces the time and cost involved in the identification of cyclo-dopa and diketopiperazine alkaloids in Portulaca oleracea L., as well as being a simple and convenient approach to the identification of other structural families of natural products. Copyright (c) 2008 John Wiley & Sons, Ltd.

Kindrali saatus : Lavastus kindral Laidonerist jõuab Ameerika Ühendriikidesse / Mart Laar

Index Scriptorium Estoniae

Laar, Mart

2008-01-01

Mart Kivastiku lavastusest "Sõdur" - Johan Laidoneri viimastest aastatest. Etendust mängitakse New Yorgis, Baltimores, Chicagos ja Los Angeleses New Yorgi Eesti Kultuuripäevade 2008 raames. Artikkel sisaldab eluloolisi andmeid Johan Laidonerist, tema naisest Mariast, Konstantin Pätsist ja August Reist ning fakte NSV Liidu ettevalmistustöödest terrori vallandamiseks, rahvusliku eliidi kavakindlaks hävitamiseks juba enne Eesti okupeerimist

Ácido sulfúrico superação da dormência de unidade de dispersão de juazeiro (Zizyphus joazeiro Mart. The use of sulfuric acid to break dispersal unit dormancy of Zizyphus joazeiro Mart.

Directory of Open Access Journals (Sweden)

Edna Ursulino Alves

2006-04-01

Full Text Available O Zizyphus joazeiro Mart. apresenta redução sensível no número de indivíduos em seu ambiente natural devido, entre outras causas, à ocorrência de dormência exógena da unidade de dispersão (impermeabilidade à água. Avaliou-se o efeito do período de imersão (0, 30, 60, 90, 120 e 150 min dessas unidades de dispersão, em ácido sulfúrico (98 %, na emergência e vigor das sementes (primeira contagem, índice de velocidade e tempo médio de emergência, altura e massa seca de plantas. O experimento foi realizado em casa de vegetação, utilizando-se o delineamento inteiramente ao acaso, com seis tratamentos e quatro repetições. O pré-condicionamento das unidades de dispersão de Zizyphus joazeiro Mart., em ácido sulfúrico concentrado, mostrou-se eficiente na superação da dormência dessa espécie, promovendo aumento na porcentagem e velocidade de emergência, primeira contagem de emergência, na altura e massa seca de plantas e redução no tempo médio para emergência. A eficiência do tratamento químico com ácido sulfúrico concentrado depende do período de imersão, sendo a faixa entre 74 e 115 min mais adequada para proporcionar maiores porcentagens de emergência e de vigor.Zizyphus joazeiro Mart. trees have been declining in number in their natural habitat due to, among other reasons, the occurrence of dormancy of dispersal units (water impermeability. The effect of the immersion time (0, 30, 60, 90, 120 and 150 minutes of Zizyphus joazeiro Mart. dispersal units in concentrated sulfuric acid (95-98 % was evaluated through the emergency and vigor (first count, speed index and mean emergence time, plant height and dry matter weight. The experiment was performed under greenhouse conditions, with a completely randomized experimental design, six treatments and four replications. The pre-conditioning of Zizyphus joazeiro Mart. dispersal units with immersion in concentrated sulfuric acid was efficient for breaking the seed

Efeito de enzimas de maceração na textura do palmito (Euterpe edulis Mart Influence of cellulase, pectinase and hemicellulase on the texture of hearts of palm (Euterpe edulis Mart.

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Regina Kitagawa GRIZOTTO

1997-12-01

Full Text Available Com a finalidade de ampliar o aproveitamento da palmeira produtora do palmito estudou-se a influência da poligalacturonase e de enzimas maceradoras na textura das partes semi-rígidas do vegetal não-comestíveis, incubando-se preparados comerciais de celulase, hemicelulase e poligalacturonase com o palmito preparado na forma de pequenos toletes (1-3 cm de comprimento e em porções de 2cm do raquis do vegetal. Embora os tratamentos com hemicelulase e mistura de hemicelulase e poligalacturonase tenham promovido ligeiro amaciamento do palmito, os resultados mostraram ,de modo geral, acréscimo na textura do palmito cortado em porções de 3,0 cm e em fatias de 1,0 cm indicando solubilização intensa das regiões suscetíveis a hidrólise com a permanência das regiões duras mais ricas em lignina. Como nos outros tecidos do palmito, no raquis fibroso, não foi comprovada estatiscamente a ação das enzimas na textura do vegetal.With the aim of amplifying the utilization of the palm tree the influence of poligalacturonase and macerating enzymes on the texture of the hard tips of hearts of palm was studied, incubating commercial preparations of cellulase , hemicellulase and poligalacturonase with the hearts of palm, prepared as small stalks of 1-3 cm length and with 2 cm portions of the rachis of the plant. Although the treatments containing hemicellulase and a mixture of hemicellulase and poligalacturonase promoted a slight softening of the hearts of palm, the results generally showed a hardening of the texture of the hearts of palm prepared as stalks of 1 to 3 cm indicating great solubilization of the parts susceptible to hydrolysis, the hard lignin rich parts remaining intact. As in the other tissue of the plant, in the rachis of the fibrous hearts of palm, the action of the enzymes was not statiscally proven.

Effects of aqueous extract of Portulaca oleracea L. on oxidative stress and liver, spleen leptin, PARα and FAS mRNA expression in high-fat diet induced mice.

Science.gov (United States)

Chen, Bendong; Zhou, Haining; Zhao, Wenchao; Zhou, Wenyan; Yuan, Quan; Yang, Guangshun

2012-08-01

We reported that an aqueous extract of Portulaca oleracea L. inhibited high-fat-diet-induced oxidative injury in a dose-dependent manner. Male kunming mice (5-weeks-old, 24 g) were used in this experiment. After a 4-day adaptation period, animals were randomly divided into four groups (n = 10 in each group); Group 1: animals received normal powdered rodent diet; Group 2: animals received high fat diet; Groups 3 and 4: animals received high fat diet and were fed by gavage to mice once a day with aqueous extract at the doses of 100 and 200 mg/kg body weight, respectively. In mice fed with high-fat diet, blood and liver lipid peroxidation level was significantly increased, whereas antioxidant enzymes activities were markedly decreased compared to normal control mice. Administration of an aqueous extract of P. oleracea L. significantly dose-dependently reduced levels of blood and liver lipid peroxidation and increased the activities of blood and liver antioxidant enzymes activities in high fat mice. Moreover, administration of an aqueous extract of P. oleracea L. significantly dose-dependently increase liver Leptin/β-actin (B), and Liver PPARα/β-actin, decrease liver, spleen FAS mRNA, p-PERK and p-PERK/PERK protein expression levels. Taken together, these data demonstrate that aqueous extract of P. oleracea L. can markedly alleviate high fat diet-induced oxidative injury by enhancing blood and liver antioxidant enzyme activities, modulating Leptin/β-actin (B), and Liver PPARα/β-actin, decrease liver, spleen FAS mRNA, p-PERK and p-PERK/PERK protein expression levels in mice.

Portulaca oleracea L. alleviates liver injury in streptozotocin-induced diabetic mice

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Zheng G

2017-12-01

Full Text Available Guoyin Zheng,1,* Fengfeng Mo,2,* Chen Ling,3,* Hao Peng,1 Wei Gu,1 Min Li,2 Zhe Chen1 1Department of Traditional Chinese Medicine, Changhai Hospital, 2Department of Military Hygiene, Second Military Medical University, 3Department of Biology, School of Life Science, Fudan University, Shanghai, People’s Republic of China *These authors contributed equally to this work Abstract: Purslane is a widespread succulent herb that exhibits various pharmacological effects. The purpose of this study was to evaluate the protective effect of Portulaca oleracea L. (purslane on streptozotocin-induced diabetes in mice. Oral glucose-tolerance tests were carried out to assess blood glucose levels and body weight and food intake were recorded. The biochemical parameters anti-aspartate aminotransferase, alanine aminotransferase, insulin, triglycerides, total cholesterol, IL-6, IL-1β, and TNFα were also measured. The pathological condition of liver tissues were examined by hematoxylin–eosin staining. Rho, ROCK1, ROCK2, NFκBp65, p-NFκBp65, IκBα, and p-IκBα expression in liver tissue were analyzed by Western blot. Purslane increased body weight and decreased food intake. Purslane also significantly reduced concentrations of glucose, anti-aspartate aminotransferase, alanine ­aminotransferase, triglycerides, total cholesterol, IL-6, IL-1β, and TNFα in serum. Serum insulin was elevated with purslane treatment. In addition, pathologic liver changes in diabetic mice were also alleviated by purslane. Obtained data revealed that purslane restored the levels of Rho–NFκB signaling-related proteins in comparison with those of diabetic mice. Above all, it can be assumed that purslane might play a positive role in regulating streptozotocin-induced liver injury through suppressing the Rho–NFκB pathway. Keywords: Portulaca oleracea L., diabetes, liver injury, Rho–NFκB

Low-level profiling and MARTE-compatible modeling of software components for real-time systems

NARCIS (Netherlands)

Triantafyllidis, K.; Bondarev, E.; With, de P.H.N.

2012-01-01

In this paper, we present a method for (a) profiling of individual components at high accuracy level, (b) modeling of the components with the accurate data obtained from profiling, and (c) model conversion to the MARTE profile. The resulting performance models of individual components are used at

Defensa de lo local en Nuestra América y Coney Island de José Martí: el ensayo como un espacio para la ideología dentro de las raíces hispanoamericanas

OpenAIRE

Ángel, Roberto

2015-01-01

José Martí proposes that for the proper development of the Republic in America it is essential to secure a government that has as the premises of its administration the natural categories of its origin. To evaluate the local characteristics Martí was thinking of I will carry out an analysis of two of his essays: Nuestra América (Martí, 1977) and Coney Island (Martí, 1881), in an attempt to unravel the polarisation strategy which supports his argument. Indeed, through a semantic axis the autho...

Effects of open-air sun drying and pre-treatment on drying characteristics of purslane ( Portulaca oleracea L.)

Science.gov (United States)

İsmail, Osman; Kantürk Figen, Aysel; Pişkin, Sabriye

2015-06-01

Effects of open-air sun drying and pre-treatment on drying characteristic of purslanes ( Portulaca oleracea L.) were investigated. Drying times were determined as 31, 24 and 9 h for natural, salted and blanched, respectively. The higher "L" value and lower "-a/b" ratio values were obtained in natural dried purslane. The Aghbashlo et al. model gave a better fit to drying data.

The biology of Meteorus gyrator (Hymenoptera: Braconidae), a solitary endoparasitoid of the tomato moth, Lacanobia oleracea (Lepidoptera: Noctuidae).

Science.gov (United States)

Bell, H A; Marris, G C; Bell, J; Edwards, J P

2000-08-01

There is a need to identify potential biological control agents for use against lepidopterous pests in greenhouses. The solitary endoparasitoid Meteorus gyrator (Thunberg) attacks a range of macrolepidopterous larvae, including those of some important horticultural pest species. Laboratory trials designed to investigate the biology of M. gyrator on larvae of the tomato moth, Lacanobia oleracea Linnaeus, reveal that this parasitoid is capable of parasitizing all larval stages of its host, third instars being parasitized most frequently. Each female parasitoid lives for up to 40 days (at 25 degrees C), ovipositing into an average of 78 hosts. Preadult development is rapid ( approximately 2 weeks), and the sex ratio of offspring is 1:1. Parasitism by M. gyrator suppresses the growth of both early and late host instars, and there is a concomitant reduction in the amount of food consumed (overall feeding reduction over a 12 day period is 68%). Our results indicate that inoculative releases of M. gyrator could provide effective biological control of L. oleracea and other noctuid pests of greenhouses.

Kuidas sai kirjanik Mart Raud endale kirjanik Albert Kivikase maja? : [Tallinn, Vaarika 3] / Stepan Karja

Index Scriptorium Estoniae

Karja, Stepan

1995-01-01

Vastukaja : Raud, Valda; Raud, Anu. Vastuseks Stepan Karja artiklile 'Kuidas sai kirjanik Mart Raud endale kirjanik Albert Kivikase maja' // Postimees, 1995, 18.apr., lk.7 ; Rebane, Ilme. Alati on raske loobuda armsaks saanud elupaigast // Postimees, 1995, 25.mai, lk.6

When reintroductions are augmentations: the genetic legacy of the fisher (Martes pennanti) in Montana

Science.gov (United States)

Ray S. Vinkey; Michael K. Schwartz; Kevin S. McKelvey; Kerry R. Foresman; Kristine L. Pilgrim; Brian J. Giddings; Eric C. Lofroth

2006-01-01

Fishers (Martes pennanti) were purportedly extirpated from Montana by 1930 and extant populations are assumed to be descended from translocated fishers. To determine the lineage of fisher populations, we sequenced 2 regions of the mitochondrial DNA genome from 207 tissue samples from British Columbia, Minnesota, Wisconsin, and Montana. In...

The coming electric Wal-Mart

International Nuclear Information System (INIS)

Drzemiecki, J.H.; Augustini, P.

1993-01-01

Market power in the competitive electric marketplace will depend on being a low-price leader. Electric utility executives are beginning to peer over the wall into the emerging world of competitive electric markets. Many will be terrified by the uncertainties and disorder associated with new service offerings such as retail wheeling and the transformation of other vestiges of the vertically integrated electric monopolies known for the past 100 years. The potential for increased competition for retail customers promises to have as fundamental an effect on the electric utility industry as Wal-Mart has had on retailing. Firms that are prepared for the new competitive environment will be in the strongest position to respond to the marketplace; those that are not prepared might want to consider the fate of the corner five-and-dime. To remain competitive, utility executives must take proactive steps to redefine their vision of their company's future. Such a redefinition must include a candid assessment of the strategies to be taken to reposition their firm to succeed, not just within the existing service area but in multiple markets

USOS DE LAS PALMAS EN LAS TIERRAS BAJAS DEL PACÍFICO COLOMBIANO

Directory of Open Access Journals (Sweden)

EVA DOLORES LEDEZMA-RENTERÍA

2014-06-01

Full Text Available Con el fin de evaluar el conocimiento sobre usos de las palmas en el Pacífico colombiano, para orientar las investigaciones futuras y para definir patrones generales de uso en la región, estudiamos las fuentes de información que documentan usos en esta región. Se registraron 90 tipos de usos en 52 especies de palmas útiles en el Pacífico, que equivalen al 61 % de las palmas que crecen en la región. Los usos se agruparon en ocho categorías de uso y 30 subcategorías; las categorías de uso más importantes fueron construcción, utensilios y herramientas, y alimentación humana. Las especies que registraron mayor número de usos fueron Bactris gasipaes, Astrocaryum standleyanum, Oenocarpus bataua, Euterpe oleracea, Oenocarpus minor, Cocos nucifera, Attalea cuatrecasana, Iriartea deltoidea, Desmoncus cirrhifer y Wettinia quinaria.

Modeling Potential Impacts of Planting Palms or Tree in Small Holder Fruit Plantations on Ecohydrological Processes in the Central Amazon

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Norbert Kunert

2015-07-01

Full Text Available Native fruiting plants are widely cultivated in the Amazon, but little information on their water use characteristics can be found in the literature. To explore the potential impacts of plantations on local to regional water balance, we studied plant water use characteristics of two native fruit plants commonly occurring in the Amazon region. The study was conducted in a mixed fruit plantation containing a dicot tree species (Cupuaçu, Theobroma grandiflorum and a monocot palm species (Açai, Euterpe oleracea close to the city of Manaus, in the Central Amazon. Scaling from sap flux measurements, palms had a 3.5-fold higher water consumption compared to trees with a similar diameter. Despite the high transpiration rates of the palms, our plantation had only one third of the potential water recycling capacity of natural forests in the area. Converting natural forest into such plantations will thus result in significantly higher runoff rates.

Oligarchic forests of economic plants in amazonia: utilization and conservation of an important tropical resource.

Science.gov (United States)

Peters, C M; Balick, M J; Kahn, F; Anderson, A B

1989-12-01

Tropical forests dominated by only one or two tree species occupy tens of millions of hectares in Ammonia In many cases, the dominant species produce fruits, seeds, or oils of economic importance. Oligarchic (Gr. oligo = few, archic = dominated or ruled by) forests of six economic species, i. e., Euterpe oleracea, Grias peruviana, Jessenia bataua, Mauritia flexuosa, Myrciaria dubia, and Orbignya phalerata, were studied in Brazil and Peru Natural populations of these species contain from 100 to 3,000 conspecific adult trees/ha and produce up to 11.1 metric tons of fruit/hd/yr. These plant populations are utilized and occasionally managed, by rural inhabitants in the region. Periodic fruit harvests, if properly controlled have only a minimal impact on forest structure and function, yet can generate substantial economic returns Market-oriented extraction of the fruits produced by oligarchic forests appears to represent a promising alternative for reconciling the development and conservation of Amazonian forests.

Evaluation of Atriplex halimus, Medicago lupulina and Portulaca oleracea for phytoremediation of Ni, Pb, and Zn.

Science.gov (United States)

Amer, Nasser; Al Chami, Ziad; Al Bitar, Lina; Mondelli, Donato; Dumontet, Stefano

2013-01-01

Suitable plant species are able to accumulate heavy metals and to produce biomass useful for non-food purposes. In this study, three endemic Mediterranean plant species, Atriplex halimus, Portulaca oleracea and Medicago lupulina were grown hydroponically to assess their potential use in phytoremediation and biomass production. The experiment was carried out in a growth chamber using half strength Hoagland's solutions separately spiked with 5 concentrations of Pb and Zn (5, 10, 25, 50, and 100 mg L(-1)), and 3 concentrations of Ni (1, 2 and 5 mg L(-1)). Shoot and root biomass were determined and analyzed for their metals contents. A. halimus and M. lupulina gave high shoot biomass with relatively low metal translocation to the above ground parts. Metals uptake was a function of both metals and plant species. It is worth noting that M. lupulina was the only tested plant able to grow in treatment Pb50 and to accumulate significant amount of metal in roots. Plant metal uptake efficiency ranked as follows: A. halimus > M. lupulina > P. oleracea. Due to its high biomass production and the relatively high roots metal contents, A. halimus and M. lupulina could be successfully used in phytoremediation, and in phytostabilization, in particular.

Identification of genes involved in the drought adaptation and recovery in Portulaca oleracea by differential display.

Science.gov (United States)

D'Andrea, Rodrigo Matías; Triassi, Agustina; Casas, María Isabel; Andreo, Carlos Santiago; Lara, María Valeria

2015-05-01

Portulaca oleracea is one of the richest plant sources of ω-3 and ω-6 fatty acids and other compounds potentially valuable for nutrition. It is broadly established in arid, semiarid and well-watered fields, thus making it a promising candidate for research on abiotic stress resistance mechanisms. It is capable of withstanding severe drought and then of recovering upon rehydration. Here, the adaptation to drought and the posterior recovery was evaluated at transcriptomic level by differential display validated by qRT-PCR. Of the 2279 transcript-derived fragments amplified, 202 presented differential expression. Ninety of them were successfully isolated and sequenced. Selected genes were tested against different abiotic stresses in P. oleracea and the behavior of their orthologous genes in Arabidopsis thaliana was also explored to seek for conserved response mechanisms. In drought adapted and in recovered plants changes in expression of many protein metabolism-, lipid metabolism- and stress-related genes were observed. Many genes with unknown function were detected, which also respond to other abiotic stresses. Some of them are also involved in the seed desiccation/imbibition process and thus would be of great interest for further research. The potential use of candidate genes to engineer drought tolerance improvement and recovery is discussed. Copyright © 2015 Elsevier Masson SAS. All rights reserved.

José Martí, la Educación como Herramienta de Transformación y Liberación

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Héctor Hernández Pardo

2015-09-01

Full Text Available José Martí otorgó a la educación un papel fundamental como elemento de transformación sociopolítica y económica en donde los métodos socráticos fueron reinventados para superar las metodologías conservadoras que acompañaban a la intelectualidad más reaccionaria. Para Martí, la educación debía estar encaminada a la liberación, pero basándose en el conocimiento y en la revalorización de la cultura y los valores latinoamericanos, y en manera alguna podía ser privilegio exclusivo de una clase.   José Martí gave to education a fundamental role as an element of socio-political and economic transformation, in which Socratic methods were reinvented to overcome conservative methodologies which were embedded in the most reactionary intellectuals. Therefore, this paper looks at his perspective over education. On the one hand, he argued it should be oriented towards liberation, but only insofar as it was based on the knowledge and appreciation of Latin American culture and values, and on the other, he highlighted that under no circumstances should it be an exclusive privilege of a social class.

Mars Analog Research and Technology Experiment (MARTE): A Simulated Mars Drilling Mission to Search for Subsurface Life at the Rio Tinto, Spain

Science.gov (United States)

Stoker, Carol; Lemke, Larry; Mandell, Humboldt; McKay, David; George, Jeffrey; Gomez-Alvera, Javier; Amils, Ricardo; Stevens, Todd; Miller, David

2003-01-01

The MARTE (Mars Astrobiology Research and Technology Experiment) project was selected by the new NASA ASTEP program, which supports field experiments having an equal emphasis on Astrobiology science and technology development relevant to future Astrobiology missions. MARTE will search for a hypothesized subsurface anaerobic chemoautotrophic biosphere in the region of the Tinto River in southwestern Spain while also demonstrating technology needed to search for a subsurface biosphere on Mars. The experiment is informed by the strategy for searching for life on Mars.

The effect of the rate and method of nitrogen application on nitrogen uptake and utilization by broccoli (Brassica oleracea var. italica)

NARCIS (Netherlands)

Everaarts, A.P.; Willigen, de P.

1999-01-01

The effect of the rate and method of nitrogen application on nitrogen uptake and utilization by broccoli (Brassica oleracea var. italica) was studied in four field experiments. The methods of application were broadcast application vs band placement and split application. Maximum uptake of nitrogen

Era Sanctorum: la beatificación inconclusa del padre Diego Martínez, SJ (1627-1634

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Coello de la Rosa, Alexandre

2009-06-01

Full Text Available This essay analyzes the politics of sanctity of the Society of Jesus in Viceregal Peru (17th Century through the process of beatification of the Spanish Father Diego Martínez (1627-34. An unfinished process that has been filed in the Jesuit archives for centuries and was never introduced in the Sacred Congregation of Rites, in the Vatican.Este ensayo analiza las políticas de santidad de la Compañía de Jesús en el Perú virreinal (siglo XVII a través del proceso de beatificación del padre extremeño Diego Martínez (1627-34. Un proceso inconcluso que ha permanecido en los archivos jesuitas durante siglos y que nunca se introdujo en la Sagrada Congregación de Ritos, en el Vaticano.

Impact of Selenium Supplementation on Growth and Selenium Accumulation on Spinach (Spinacia oleracea L.) Plants

OpenAIRE

Azadeh SAFFARYAZDI; Mehrdad LAHOUTI; Ali GANJEALI; Hassan BAYAT

2012-01-01

Selenium (Se) has been proved to be an essential element for humans and animals. However, less is known about its effects on plants. A hydroponic experiment was carried out to investigate the effects of selenium on growth, selenium accumulation and some physiological characteristics of spinach (Spinacia oleracea L. cv. �Missouri�) plants. Plants were grown in Hoagland nutrient solution amended with sodium selenite at 0 (control), 1, 2, 4, 6 and 10 mg.L-1 for 28 days. Growth parameters like sh...

Automated quantification of proliferation with automated hot-spot selection in phosphohistone H3/MART1 dual-stained stage I/II melanoma.

Science.gov (United States)

Nielsen, Patricia Switten; Riber-Hansen, Rikke; Schmidt, Henrik; Steiniche, Torben

2016-04-09

Staging of melanoma includes quantification of a proliferation index, i.e., presumed melanocytic mitoses of H&E stains are counted manually in hot spots. Yet, its reproducibility and prognostic impact increases by immunohistochemical dual staining for phosphohistone H3 (PHH3) and MART1, which also may enable fully automated quantification by image analysis. To ensure manageable workloads and repeatable measurements in modern pathology, the study aimed to present an automated quantification of proliferation with automated hot-spot selection in PHH3/MART1-stained melanomas. Formalin-fixed, paraffin-embedded tissue from 153 consecutive stage I/II melanoma patients was immunohistochemically dual-stained for PHH3 and MART1. Whole slide images were captured, and the number of PHH3/MART1-positive cells was manually and automatically counted in the global tumor area and in a manually and automatically selected hot spot, i.e., a fixed 1-mm(2) square. Bland-Altman plots and hypothesis tests compared manual and automated procedures, and the Cox proportional hazards model established their prognostic impact. The mean difference between manual and automated global counts was 2.9 cells/mm(2) (P = 0.0071) and 0.23 cells per hot spot (P = 0.96) for automated counts in manually and automatically selected hot spots. In 77 % of cases, manual and automated hot spots overlapped. Fully manual hot-spot counts yielded the highest prognostic performance with an adjusted hazard ratio of 5.5 (95 % CI, 1.3-24, P = 0.024) as opposed to 1.3 (95 % CI, 0.61-2.9, P = 0.47) for automated counts with automated hot spots. The automated index and automated hot-spot selection were highly correlated to their manual counterpart, but altogether their prognostic impact was noticeably reduced. Because correct recognition of only one PHH3/MART1-positive cell seems important, extremely high sensitivity and specificity of the algorithm is required for prognostic purposes. Thus, automated

Diversity in growth and expression pattern of PoHKT1 and PoVHA transporter genes under NaCl stress in Portulaca oleracea taxa

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El-Bakatoushi R.

2016-01-01

Full Text Available Plant growth and the expression of two transporter genes; PoHKT1 and PoVHA transcripts in root and shoot tissues were studied under salt stress of three Portulaca oleracea s.l. taxa. The study showed no significant differences in ratios between root lengths in saline and non-saline treatments of the three taxa, which was correlated with a clear down-regulation of the PoHKT1 transcripts in the root after 150mM NaCl. All measured growth parameters except root length increased in P. oleraceae, decreased in P. granulatostellulata and remain unchanged after 100mM NaCl in P. nitida compared to control under saline conditions. The result was consistent with the type of taxon which had significant effect on the shoot length, number of leaves and dry weight (P< 0.05. All measured growth parameters except root length showed a significant negative correlation with the shoot fold change of PoHKT1 transcripts (r = -0.607, -0.693 and -0.657 respectively. The regulation of PoVHA in root and shoot tissues in the three taxa are significantly different. Under salt stress, both decreased uptake of Na+ into the cytosol by decreasing the expression of PoHKT1 and increased vascular compartmentalization ability of Na+ by inducing the expression of PoVHA seem to work more efficiently in P. oleraceae and P. nitida than in P. granulato-stellulata.

El hombre borrado. Mart Stam y la creatividad colectiva

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Pablo López Martín

2016-10-01

Full Text Available El arquitecto holandés Mart Stam fue un outsider del Movimiento Moderno. Comúnmente encasillado en su papel de instigador del ala más dura e intransigente del determinismo racionalista, fue sin embargo un creador original, dotado de un particular talento en todas las escalas. Su propia idea de la disciplina, cercana a la actividad científica, cuya meta es la contribución desinteresada y anónima a un saber universal, ha resultado ser crucial para que su participación en algunas de las páginas más brillantes de la modernidad haya sido relegada a un papel testimonial.

La aventura de la exploración de Marte

OpenAIRE

Vázquez Martínez, Luis

2013-01-01

Resumen La exploración del planeta Marte forma parte de un objetivo científico de largo alcance: entender la formación y la historia del Sistema Solar, saber no sólo cómo son hoy en día todos los cuerpos celestes que lo forman, sino cómo fueron en otros tiempos geológicos, cómo se formaron, si en ellos se dieron condiciones para que se desarrollase vida como ocurrió en la Tierra. En este contexto científico se ha de resaltar la participación activa de la Universidad Complutense de Madr...

Histochemistry and infrared microspectroscopy of lignified tissue in young stems of Struthanthus vulgaris Mart.

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Gisely de Lima Oliveira

Full Text Available In this study, we aimed to determine lignified tissue in young stems of Struthanthus vulgaris Mart. by infrared microspectroscopy and histochemical methods as well as by fluorescence microscopy. Struthanthus vulgaris Mart. is a mistletoe species that belongs to the Loranthaceae family. A brief anatomical description was also carried out. The first procedure for analysis was to elaborate anatomical cross sections (20-30 µm from young stems before and after treatment with NaOH 1%. This procedure was applied to release possible low molecular mass phenolic compounds. Safranin-astra blue was used to distinguish anatomical tissues while Wiesner test enabled verification of lignified pericyclic fibers. Infrared microspectroscopy analysis confirmed the presence of lignin in this region according to the following spectral signals: 1600 (shoulder, 1511, 1453, 1338 and 1244 cm-1. Analyses of the cross section of young stems under fluorescence microscopy before and after treatment with NaOH 1% allowed us to confirm the presence of low mass phenolic compounds in the region of pericyclic fibers.

Una finestra sul passato: Irse de casa di Carmen Martín Gaite

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Giulia Tosolini

2015-01-01

Full Text Available Beyond historical and social implications, migration represents the possibility of crossing a threshold and opening oneself up to new empirical and emotional spaces. Amparo, the main character of Carmen Martín Gaite’s Irse de casa (1998, is the perfect personification of the gaitian feminine canon. After leaving Spain and settling in New York, she became a successful fashion designer, and seemed happy and easy-going. The bond with memory and the past is the main topic of this novel, as it is in most of Martín Gaite’s production. The window on the past that Amparo closed moving to the US suddenly reappears when she needs to discover herself and her origins. This inconvenience in an anonymous life brings huge changes that will condition her and her loved ones. Travelling to Spain and interacting with places and people connected with her childhood, Amparo goes through the window she had closed forty years before, restoring the order. The window connects the present and the past, symbolizes the emigrant’s transience, personified in the novel by Amparo, who can definitely find the lost serenity and heart’s-ease.

ESTIMATIVA DE REPETIBILIDADE PARA RENDIMENTO DE POLPA E CARACTERES BIOMÉTRICOS DE FRUTOS E SEMENTES DE Euterpe edulis.

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Guilherme Bravim Canal

2017-03-01

Full Text Available O Euterpe edulis (Arecaceae é uma espécie ameaçada de extinção, sobretudo pela exploração indiscriminada de seu palmito. O manejo do fruto surge como alternativa para contornar esta problemática, uma vez que possibilita a geração de renda e mantem os indivíduos vivos. Porém, pouco se sabe sobre os caracteres produtivos desta espécie. Objetivou-se caracterizar as variáveis relacionadas aos frutos e definir o tamanho mínimo de amostras para estas avaliações pela estimativa de repetibilidade. Foram avaliados caracteres de frutos e sementes de 138 genótipos (diâmetro equatorial e longitudinal, massa fresca, volume, intensidade de cor e o rendimento de polpa. Os caracteres avaliados apresentaram elevada variação. O rendimento de polpa de E. edulis é, em média, de 20,94%. O esforço experimental do presente trabalho foi maior que o necessário para todas as características, exceto para o rendimento de polpa, que exigiu maiores repetições para níveis de confiabilidade acima de 90%.

High-throughput multiplex cpDNA resequencing clarifies the genetic diversity and genetic relationships among Brassica napus, Brassica rapa and Brassica oleracea.

Science.gov (United States)

Qiao, Jiangwei; Cai, Mengxian; Yan, Guixin; Wang, Nian; Li, Feng; Chen, Binyun; Gao, Guizhen; Xu, Kun; Li, Jun; Wu, Xiaoming

2016-01-01

Brassica napus (rapeseed) is a recent allotetraploid plant and the second most important oilseed crop worldwide. The origin of B. napus and the genetic relationships with its diploid ancestor species remain largely unresolved. Here, chloroplast DNA (cpDNA) from 488 B. napus accessions of global origin, 139 B. rapa accessions and 49 B. oleracea accessions were populationally resequenced using Illumina Solexa sequencing technologies. The intraspecific cpDNA variants and their allelic frequencies were called genomewide and further validated via EcoTILLING analyses of the rpo region. The cpDNA of the current global B. napus population comprises more than 400 variants (SNPs and short InDels) and maintains one predominant haplotype (Bncp1). Whole-genome resequencing of the cpDNA of Bncp1 haplotype eliminated its direct inheritance from any accession of the B. rapa or B. oleracea species. The distribution of the polymorphism information content (PIC) values for each variant demonstrated that B. napus has much lower cpDNA diversity than B. rapa; however, a vast majority of the wild and cultivated B. oleracea specimens appeared to share one same distinct cpDNA haplotype, in contrast to its wild C-genome relatives. This finding suggests that the cpDNA of the three Brassica species is well differentiated. The predominant B. napus cpDNA haplotype may have originated from uninvestigated relatives or from interactions between cpDNA mutations and natural/artificial selection during speciation and evolution. These exhaustive data on variation in cpDNA would provide fundamental data for research on cpDNA and chloroplasts. © 2015 Society for Experimental Biology, Association of Applied Biologists and John Wiley & Sons Ltd.

“Todo lo que sigue es sencillamente estupendo”. Escritoras en las cartas de Ezequiel Martínez Estrada a Victoria Ocampo

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Tania Diz

2016-11-01

Full Text Available While Ezequiel Martínez Estrada writes Marta Riquelme, between his fiction and essays, and Victoria Ocampo begins to write her memories; it arises from both an emotional and intellectual relationship through letters along more than 15 years since the late '40s and until the death of Martinez Estrada in 1964. This article will discuss much of those letters with the intended to show that one of the central axes of the epistolary is the construction by Martínez Estrada, his interlocutor in a character: writer women who acquire multiple identities including Marta Riquelme looks.

Deciphering the mechanisms involved in Portulaca oleracea (C4) response to drought: metabolic changes including crassulacean acid-like metabolism induction and reversal upon re-watering.

Science.gov (United States)

D'Andrea, Rodrigo Matías; Andreo, Carlos Santiago; Lara, María Valeria

2014-11-01

Portulaca oleracea is a C(4) plant; however, under drought it can change its carbon fixation metabolism into a crassulacean acid metabolism (CAM)-like one. While the C(3) -CAM shift is well known, the C(4) -CAM transition has only been described in Portulaca. Here, a CAM-like metabolism was induced in P. oleracea by drought and then reversed by re-watering. Physiological and biochemical approaches were undertaken to evaluate the drought and recovery responses. In CAM-like plants, chlorophyll fluorescence parameters were transitory affected and non-radiative energy dissipation mechanisms were induced. Induction of flavonoids, betalains and antioxidant machinery may be involved in photosynthetic machinery protection. Metabolic analysis highlights a clear metabolic shift, when a CAM-like metabolism is induced and then reversed. Increases in nitrogenous compounds like free amino acids and urea, and of pinitol could contribute to withstand drought. Reciprocal variations in arginase and urease in drought-stressed and in re-watered plants suggest urea synthesis is strictly regulated. Recovery of C(4) metabolism was accounted by CO(2) assimilation pattern and malate levels. Increases in glycerol and in polyamines would be of importance of re-watered plants. Collectively, in P. oleracea multiple strategies, from induction of several metabolites to the transitory development of a CAM-like metabolism, participate to enhance its adaptation to drought. © 2014 Scandinavian Plant Physiology Society.

A psychology of liberation for Central America: the unfinished work of Ignacio Martín-Baró (1942-1989).

Science.gov (United States)

Gondra, José María

2013-01-01

On November 16, 1989 the world was shocked by the news of the assassination of six Jesuits at the campus of the Universidad Centro Americana José Simeón Cañas (UCA) in San Salvador, El Salvador. Among those murdered by government soldiers was Ignacio Martín-Baró, a PhD in social psychology from the University of Chicago who at that time was the Vice-Rector for Academic Affairs and Vice-President of the Interamerican Society of Psychology (SIP). Drawing on Martín-Baró's published writings and non-published academic papers and correspondence, this article traces the evolution of the Spanish-born Jesuit who became a leading authority among Latin American social psychologists. In particular, it analyzes his project of becoming a clinical psychologist under the influence of psychoanalysis, his critical social psychology aimed to "de-ideologize" the oppressed social classes of El Salvador, and his ultimate project of a psychology of liberation for Latin America. Martín-Baró's work came to a tragic end just when it began to bear fruit, but it stands as a testimony to a lifetime committed to the human values of democracy, social justice and service to society's poorest and most neglected.

La conmemoración de las Independencias hispanoamericanas en José Martí: El intelectual moderno y la guerra

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Susana Emilce Zanetti

2010-11-01

Full Text Available Bolívar, San Martin and Páez are the only Independence protagonists to whom Martí devotes his celebratory speeches and chronicles. Those texts were published throughout a decade [from 1883 to 1894], exactly when Latin American political and cultural leaders regard themselves as having the right to establish [not without dispute] those "places of memory" [in the sense of Nora 2003] which monumentalize a recent heroic history. The texts by Martí are interesting in this sense: facing the imminent fight for the independence of Cuba, his evocation of past heroic deeds acquires a special symbolic value. It assumes the return to a finished era but from which ethical, social and political key values for the present must be extracted. Martí encourages the cult of the heroes but, at the same time, he imposes specific and divergent meanings. He celebrates the heroic deed but also emphasizes the bond between the leaders and the people, by pointing out the authority of both of them in materializing independency and the exclusion of the latter from the processes of modernization. And also, in his assessment, he warns about the errors of the leaders linked to the 'blindness of power'

Induction of apoptosis in HT-29 cells by extracts from isothiocyanates-rich varieties of Brassica oleracea.

Science.gov (United States)

Mas, Sergi; Crescenti, Anna; Gassó, Patricia; Deulofeu, Ramon; Molina, Rafael; Ballesta, Antonio; Kensler, Thomas W; Lafuente, Amalia

2007-01-01

Among the vegetables with anti-carcinogenic properties, members of the genus Brassica are the most effective at reducing the risk of cancer. This property may be explained by their principle bioactive compounds, isothiocyanates (ITCs). The aim of this study was to measure the amounts of ITCs in extracts from vegetables of the Brasssica genus and assay them for potency of induction of apoptosis in a colorectal cancer cell line (HT-29). ITCs were determined by the cyclocondensation assay with 1,2-benzenedithiol and induction of apoptosis by assessment of cell viability, caspase-3 activity and DNA fragmentation. Purple cabbage extract showed the highest ITC concentration per gram, fresh weight, followed by black cabbage and Romanesco cauliflower. At ITC concentrations of 7.08 microg/mL these extracts decreased cell viability and induced caspase-3 and DNA fragmentation at 48h. Brussels sprouts showed the strongest effects on cell viability and caspase-3 activity. Varieties of Brassica Oleracea are rich sources of ITCs that potently inhibit the growth of colon cancer cells by inducting apoptosis. All the extracts showed anticancer activity at ITC concentrations of between 3.54 to 7.08 mug/mL, which are achievable in vivo. Our results showed that ITC concentration and the chemopreventive responses of plant extracts vary among the varieties of Brassica Oleracea studied and among their cultivars.

Defensa de lo local en Nuestra América y Coney Island de José Martí: el ensayo como un espacio para la ideología dentro de las raíces hispanoamericanas

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Ángel, Roberto

2015-08-01

Full Text Available José Martí proposes that for the proper development of the Republic in America it is essential to secure a government that has as the premises of its administration the natural categories of its origin. To evaluate the local characteristics Martí was thinking of I will carry out an analysis of two of his essays: Nuestra América (Martí, 1977 and Coney Island (Martí, 1881, in an attempt to unravel the polarisation strategy which supports his argument. Indeed, through a semantic axis the author places the concepts of nature and interiority over external and foreign, making a parallel between what he calls “natural men in America” and those who represent the “other”, the people of the United States. In this way, it will be possible to see how Martí will question the alleged hegemony of the northern country, claiming the primitive qualities of American indigenous peoples, to condition the problem of allocation of barbarism. The main theoretical framework to address this work is the use of the theories of discourse analysis of Teun van Dijk, which will serve me to develop and analyse the semantic axis that Martí creates in the works studied.José Martí propone que para el buen desarrollo de la República en América es indispensable un gobierno que fije como premisas para su administración las categorías naturales y autóctonas de su origen. Para apreciar cuáles son las características locales pensadas por Martí llevaré a cabo un análisis de dos de sus ensayos: Nuestra América (Martí, 1977 y Coney Island (Martí, 1881, con la intención de desentrañar la estrategia de polarización que da sustento a su argumentación. En efecto, el autor a través de un eje semántico sitúa los conceptos de naturaleza e interioridad por sobre lo externo y lo foráneo, realizando un paralelo entre lo que él llama “los hombres naturales de América” y aquellos que representarían a los “otros”, es decir a los habitantes de los

BioMart Central Portal: an open database network for the biological community

OpenAIRE

Guberman, Jonathan M.; Ai, J.; Arnaiz, O.; Baran, Joachim; Blake, Andrew; Baldock, Richard; Chelala, Claude; Croft, David; Cros, Anthony; Cutts, Rosalind J.; Di Genova, A.; Forbes, Simon; Fujisawa, T.; Gadaleta, E.; Goodstein, D. M.

2011-01-01

International audience; BioMart Central Portal is a first of its kind, community-driven effort to provide unified access to dozens of biological databases spanning genomics, proteomics, model organisms, cancer data, ontology information and more. Anybody can contribute an independently maintained resource to the Central Portal, allowing it to be exposed to and shared with the research community, and linking it with the other resources in the portal. Users can take advantage of the common inte...

Farvekombinatorik, bidrag til 'digital practice', FoU-udstilling v. institut 4, kunstakademiets arkitektskole, marts 2008

DEFF Research Database (Denmark)

Møldrup, Per

2008-01-01

På KA-udstillingen 'Digital Practice', marts 2008, vistes fra projektet 'farvekombinatorik' nærværende planche med illustrationer til de to beskrivelsesmodeller, der er et delprodukt af projektet: 'Model 48', der  karakteriserer farve i seks valør- og otte kulør-typer, altså i 48 kategorier, hvis...

Homoisoflavonoids from the medicinal plant Portulaca oleracea.

Science.gov (United States)

Yan, Jian; Sun, Li-Rong; Zhou, Zhong-Yu; Chen, Yu-Chan; Zhang, Wei-Min; Dai, Hao-Fu; Tan, Jian-Wen

2012-08-01

Four homoisoflavonoids named portulacanones A-D, identified as 2'-hydroxy- 5,7-dimethoxy-3-benzyl-chroman-4-one, 2'-hydroxy-5,6,7-trimethoxy-3-benzyl-chroman-4-one, 5,2'-dihydroxy-6,7-dimethoxy-3-benzyl-chroman-4-one, and 5,2'-dihydroxy-7-methoxy-3-benzylidene-chroman-4-one, were isolated from aerial parts of the plant Portulaca oleracea along with nine other known metabolites. Their structures were established on the basis of extensive spectroscopic analyses. Portulacanones A-D is the first group of homoisoflavonoids so far reported from the family Portulacaceae. They represent a rare subclass of homoisoflavonoids in nature with a structural feature of a single hydroxyl group substituted at C-2' rather than at C-4' in ring B of the skeleton. Three homoisoflavonoids and the known compound 2,2'-dihydroxy-4',6'-dimethoxychalcone selectively showed in vitro cytotoxic activities towards four human cancer cell lines. Especially 2,2'-dihydroxy-4',6'-dimethoxychalcone showed cytotoxic activity against cell line SGC-7901 with an IC₅₀ value of 1.6 μg/ml, which was more potent than the reference compound mitomycin C (IC₅₀ 13.0 μg/ml). Copyright © 2012 Elsevier Ltd. All rights reserved.

Seed size-number trade-off in Euterpe edulis in plant communities of the Atlantic Forest

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Pedro Henrique Santin Brancalion

2014-06-01

Full Text Available Investigations of seed size and number differences among plant populations growing in contrasting habitats can provide relevant information about ecological strategies that optimize reproductive effort. This may imply important consequences for biodiversity conservation and restoration. Therefore, we sought to investigate seed size-number trade-off in Euterpe edulis populations growing in plant communities in the Brazilian Atlantic Forest. Seed dry mass and seed number per bunch were evaluated in 2008 and 2009 in large remnants of the Seasonally Dry Forest, Restinga Forest and Atlantic Rainforest in southeastern Brazil, in 20 individuals per site and year. Seed size and seed number varied among forest types, but a seed size-number trade-off was neither observed within nor among populations. Positive association between seed size and number was found in the Atlantic Rainforest, and reduced seed crop was not accompanied by heavier seeds in the Restinga Forest. Seed dry mass declined in 2009 in all three forest types. Compared to seed number in 2008, palms of both the Restinga Forest and the Atlantic Rainforest produced in 2009 higher yields of smaller seeds - evidence of between years seed size-number trade-off -, while the Seasonally Dry Forest population produced a reduced number of smaller seeds. Such a flexible reproductive strategy, involving neutral, positive, and negative associations between seed size and number could enhance the ecological amplitude of this species and their potential to adapt to different environment conditions.

Detecção de rastros de dust devils em Thaumasia-Marte

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Luciene Toledo Almeida

2017-02-01

Full Text Available Este trabalho utiliza um método de processamento digital de imagens para detecção de feições eólicas na superfície de Marte.  Essas feições são rastros de vórtices convectivos recorrentes em Marte, estes, por sua vez, são formados por correntes de ar quente instáveis, próximas à superfície, provocadas por insolação. A área de estudo escolhida foi Thaumasia. O método aplicado baseia-se na teoria da Morfologia Matemática, sendo os rastros obtidos de maneira automática via processamento digital de imagens e binarização automática pelo método de otsu restrito. Os rastros foram detectados automaticamente nas imagens orbitais, o que permitiu calcular características importantes dos vórtices como: largura média e máxima, área de recobrimento, direção preponderante entre outros. Os resultados podem ser usados para auxiliar na compreensão do fenômeno que ocorre no ambiente marciano, contribuindo para o entendimento de como os vórtices de dust devils podem influenciar nas variações locais climáticas do planeta e se faz importante por ser o processo geológico em maior atividade no planeta.

An analysis of natural ventilation techniques to achieve indoor comfort in Wal-Mart express

Science.gov (United States)

O'Dea, Shona

Despite global efforts to reduce world fossil fuel dependency the world still obtains 81% of its energy from fossil fuels (IEA,2009). Modern renewable alternatives have been around since the mid twentieth century these alternatives have not been integrated into electrical grid systems at the exponential rate required to eradicate fossil fuels dependency. The problem, world energy demand, is too large to be satisfied by anything other than the energy-dense fossil fuels used today. We must change our energy intensive processes in order to conserve energy and hence reduce the demands that alternatives must satisfy. This research aims to identify sustainable design opportunities through the application of innovative technologies for the largest retailer in the US with the view that a viable conservative design measure could be applied to the store model, which is replicated across the country, causing a cumulative and hence larger impact on the company energy consumption as a whole. This paper will present the literature available on the 'big box' industry and Wal-Mart, comfort, natural ventilation and building simulation software and then perform an analysis into the viability of naturally ventilating the Wal-Mart Express sales zone using Monodraught natural ventilation windcatcher products

Heterogeneity of Metastatic Melanoma:  Correlation of MITF With Its Transcriptional Targets MLSN1, PEDF, HMB-45, and MART-1.

Science.gov (United States)

Zand, Sarvenaz; Buzney, Elizabeth; Duncan, Lyn M; Dadras, Soheil S

2016-09-01

Histologic and molecular heterogeneity is well recognized in malignant melanoma; however, the diversity of expression of new and classic melanoma markers has not been correlated in serial sections of metastases. We examined and correlated the expression of microphthalmia transcription factor (MITF) with its transcriptional targets, including melastatin (MLSN1/TRPM1), pigment epithelium-derived factor (SERPINF1/PEDF), SILV/PMEL17/GP100 (human melanoma black 45 [HMB-45]), and melanoma antigen recognized by T cells 1 (MART-1)/MLANA, in 13 melanoma metastases in lymph nodes of 13 patients. The expression levels and patterns of marker expression were recorded by a semiquantitative, 4-point ordinal reactivity method. Our results showed a consistently robust and diffuse expression of MITF protein in 12 (92%) of 13 metastatic tumors compared with variable expression of MLSN1 (46%) messenger RNA or PEDF (75%), HMB-45 (54%), and MART-1 (46%) proteins. Overall, in melanoma lymph node metastases, MITF protein expression was not tightly correlated with its gene targets. Moreover, the immunoreactivity for MITF, compared with MART-1 and HMB-45, was retained, supporting immunohistochemical detection of MITF as a more sensitive method of detecting metastatic melanoma. © American Society for Clinical Pathology, 2016. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

The national varieties of capitalism: the cases of Wal-mart and Ikea

OpenAIRE

Suzanne Konzelmann; Charles Craypo; Rabih Aridi; Frank Wilkinson

2005-01-01

Using the cases of Wal-Mart and IKEA, this paper takes a productive systems approach to examine Ôvarieties of capitalismÕ from the perspective of the ways by which production and market relations are structured and prioritised. It considers the nature of these relations and their interaction within the domestic economy and the ways that firms and national systems interact with each other in the global economy. It examines the processes by which trading standards are transported via supply cha...

Differences in healthy food supply and stocking practices between small grocery stores, gas-marts, pharmacies and dollar stores.

Science.gov (United States)

Caspi, Caitlin Eicher; Pelletier, Jennifer E; Harnack, Lisa; Erickson, Darin J; Laska, Melissa N

2016-02-01

Little is known about the practices for stocking and procuring healthy food in non-traditional food retailers (e.g., gas-marts, pharmacies). The present study aimed to: (i) compare availability of healthy food items across small food store types; and (ii) examine owner/manager perceptions and stocking practices for healthy food across store types. Descriptive analyses were conducted among corner/small grocery stores, gas-marts, pharmacies and dollar stores. Data from store inventories were used to examine availability of twelve healthy food types and an overall healthy food supply score. Interviews with managers assessed stocking practices and profitability. Small stores in Minneapolis and St. Paul, MN, USA, not participating in the Special Supplemental Nutrition Program for Women, Infants, and Children. One hundred and nineteen small food retailers and seventy-one store managers. Availability of specific items varied across store type. Only corner/small grocery stores commonly sold fresh vegetables (63% v. 8% of gas-marts, 0% of dollar stores and 23% of pharmacies). More than half of managers stocking produce relied on cash-and-carry practices to stock fresh fruit (53%) and vegetables (55%), instead of direct store delivery. Most healthy foods were perceived by managers to have at least average profitability. Interventions to improve healthy food offerings in small stores should consider the diverse environments, stocking practices and supply mechanisms of small stores, particularly non-traditional food retailers. Improvements may require technical support, customer engagement and innovative distribution practices.

A comparison of the effects of Portulaca oleracea seeds hydro-alcoholic extract and Vitamin C on biochemical, hemodynamic and functional parameters in cardiac tissue of rats with subclinical hyperthyroidism

Science.gov (United States)

Khodadadi, Hadi; Pakdel, Roghayeh; Khazaei, Majid; Niazmand, Said; Bavarsad, Kowsar; Hadjzadeh, Mousa AL-Reza

2018-01-01

Objective: The present study was performed to evaluate the effects of hydro-alcoholic extract of Portulaca oleracea (P. oleracea) seeds and Vitamin C on biochemical and hemodynamic parameters in cardiac tissue of rats with subclinical hyperthyroidism. Materials and Methods: Forty eight male rats were divided into six groups of 8 and treated for 4 weeks. T4 group received daily injection of levothyroxine sodium (20 μg/kg) and control group was given daily injection of saline. T4-Po groups were given T4 plus 100, 200, and 400 mg/kg of P. oleracea seeds extract in drinking water daily. T4-Vit C group received T4 plus daily injection of Vitamin C (100 mg/kg). At the end of the experiment, body weight, serum free T4 level, left ventricular developed pressure (LVDP), malondialdehyde (MDA) and total thiol levels were measured. Results: Free T4 levels were increased in all groups that were treated with T4. Weight gain was decreased in T4 and T4-Po100 groups compared to control group (p<0.001 and p<0.05). However, body weight was increased in T4-Po (200 and 400) and T4-Vit C groups compared to T4 group. LVDP was increased in T4 group compared to control group but, LVDP was decreased in T4-Po and T4-Vit C groups. Malondialdehyde was decreased in T4-Po groups and T4-Vit C group compared to T4 group. Total thiol groups were increased in T4-Po (200 and 400) and T4-Vit C groups compared to T4 group. Conclusion: The results showed that P. oleracea extract has a protective effect on cardiac dysfunction due to subclinical hyperthyroidism induced by levothyroxine sodium in rats. PMID:29632847

Characterization of bisphenol A metabolites produced by Portulaca oleracea cv. by liquid chromatography coupled with tandem mass spectrometry.

Science.gov (United States)

Watanabe, Ippei; Harada, Kazuo; Matsui, Takeshi; Miyasaka, Hitoshi; Okuhata, Hiroshi; Tanaka, Satoshi; Nakayama, Hideki; Kato, Ko; Bamba, Takeshi; Hirata, Kazumasa

2012-01-01

The garden plant portulaca (Portulaca oleracea cv.) efficiently removes bisphenol A (BPA), an endocrine-disrupting chemical, from a hydroponic solution, but the molecular mechanisms underlying BPA metabolism by portulaca remain unclear. In this study, BPA metabolites converted by portulaca were analyzed by liquid chromatography coupled with tandem mass spectrometry. We observed the hydroxylation of BPA and the oxidization of it to quinone. Polyphenol oxidases are likely to contribute to BPA degradation by portulaca.

eSciMart: Web Platform for Scientific Software Marketplace

Science.gov (United States)

Kryukov, A. P.; Demichev, A. P.

2016-10-01

In this paper we suggest a design of a web marketplace where users of scientific application software and databases, presented in the form of web services, as well as their providers will have presence simultaneously. The model, which will be the basis for the web marketplace is close to the customer-to-customer (C2C) model, which has been successfully used, for example, on the auction sites such as eBay (ebay.com). Unlike the classical model of C2C the suggested marketplace focuses on application software in the form of web services, and standardization of API through which application software will be integrated into the web marketplace. A prototype of such a platform, entitled eSciMart, is currently being developed at SINP MSU.

Light influence in the nutritional composition of Brassica oleracea sprouts.

Science.gov (United States)

Vale, A P; Santos, J; Brito, N V; Peixoto, V; Carvalho, Rosa; Rosa, E; Oliveira, M Beatriz P P

2015-07-01

Brassica sprouts are considered a healthy food product, whose nutritional quality can be influenced by several factors. The aim of this work was to monitor the nutritional composition changes promoted by different sprouting conditions of four varieties of Brassica oleracea (red cabbage, broccoli, Galega kale and Penca cabbage). Sprouts were grown under light/darkness cycles and complete darkness. Standard AOAC methods were applied for nutritional value evaluation, while chromatographic methods with UV-VIS and FID detection were used to determine the free amino acids and fatty acids, respectively. Mineral content was analyzed by atomic absorption spectrometry. Sprouts composition revealed them as an excellent source of protein and dietary fiber. Selenium content was one of the most distinctive feature of sprouts, being the sprouting conditions determinant for the free amino acid and fatty acids profile. The use of complete darkness was beneficial to the overall nutritional quality of the brassica sprouts studied. Copyright © 2015 Elsevier Ltd. All rights reserved.

A historical approach to information management at “José Martí” College of Education

OpenAIRE

Carvajal, Bárbara María

2013-01-01

The paper presents a historical approach to information management in teachers training at “José Martí” College of Education. A theoretical framework is constructed as a way of completing the information gather in interviews to professors and graduates. The results include the identification and description of five periods of development.

Avaliação da atividade antimicrobiana de Maytenus rigida Mart. (Celastraceae Evaluation of the antimicrobial activity of Maytenus rigida Mart. (Celastraceae

Directory of Open Access Journals (Sweden)

V.L Santos

2011-01-01

Full Text Available A realização de estudos farmacológicos é fundamental para comprovar a eficácia do uso de plantas medicinais pela população para o tratamento de doenças e descobrir novos fitoterápicos. Esse estudo teve como objetivo avaliar o potencial antimicrobiano do extrato etanólico e fase acetato de etila do bom nome (Maytenus rigida Mart. sobre Staphylococcus aureus ATCC 25923, 3 amostras de Staphylococcus aureus multirresistentes isoladas de pacientes com infecções nosocomiais, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853 e Salmonella sp. (228-R-Tet, 118-R-Sut e 01-S isoladas de ambiente aquático, utilizando o método de difusão em agar. Os testes revelaram que o extrato e fase de M. rigida apresentaram atividade antimicrobiana in vitro frente a todas as cepas de S. aureus testadas, apresentando concentração inibitória mínima (MIC de 400 mg mL-1. Entretanto, estes produtos não apresentaram atividade frente às linhagens de bactérias Gram-negativas testadas, Escherichia coli, Pseudomonas aeruginosa e Salmonella sp.Ppharmacological studies are essential to prove the effectiveness of using medicinal plants to treat diseases and discover new phytotherapics. This study aimed to evaluate the antimicrobial potential of ethanol and ethyl acetate extracts of "bom-nome" (Maytenus rigida Mart. against Staphylococcus aureus ATCC 25923, three samples of multiresistant Staphylococcus aureus isolated from patients with nosocomial infections, Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853 and Salmonella sp. (228-R-Tet, 118-R-Sut and 01-S isolated from water environment, using the agar diffusion test. Both extracts showed in vitro antimicrobial activity against all S. aureus strains, presenting 400 mg mL-1 minimum inhibitory concentration (MIC. However, these products did not show activity against strains of the Gram-negative bacteria Escherichia coli, Pseudomonas aeruginosa and Salmonella sp.

Melan-A/Mart-1- or HMB-45-positive melanocytes are not present in calcifying cystic odontogenic tumors (calcifying odontogenic cysts): a study in 13 Caucasian patients.

Science.gov (United States)

Tosios, Konstantinos I; Prountzos, Nikolaos; Katsoulas, Nikolaos; Koutlas, Ioannis G; Sklavounou-Andrikopoulou, Alexandra

2012-03-01

Melanin pigment and melanocytes may be found in odontogenic cysts and tumors, particularly calcifying cystic odontogenic tumor (CCOT). In the present study we investigated the immunohistochemical expression of the Melan-A/Mart-1 and HMB-45 antigens in 13 Caucasians patients with CCOT. Melan-A/Mart-1- and HMB-45-positive melanocytes were not seen in any of the cases. Our findings are in agreement with the assumption that pigmentation in odontogenic lesions may be a racial phenomenon.

La influencia de Javier Marías en la traducción española de Martínez-Lage de Absalom, Absalom!

OpenAIRE

Alpuente Civera, Miguel; Marco Borillo, Josep; Martínez Vilinsky, Bárbara

2013-01-01

En el posfacio a su traducción de Absalom, Absalom!, Miguel Martínez-Lage declara haber tomado como «modelos estilísticos» a aquellos narradores en lengua española cuya prosa muestra sin lugar a dudas la influencia de Faulkner. En el presente artículo nos proponemos identificar, en primer lugar, los rasgos de estilo comunes a la traducción de Martínez-Lage y a uno de los modelos estilísticos mencionados –la novela Fiebre y lanza, de Javier Marías– y, en segundo lugar, los aspectos de la tradu...

Etnoecologia e etnobotânica da palmeira juçara (Euterpe edulis Martius em comunidades quilombolas do Vale do Ribeira, São Paulo Ethnoecology and ethnobotany of the juçara palm (Euterpe edulis Martius in "quilombola" communities of the Ribeira River Valley, São Paulo

Directory of Open Access Journals (Sweden)

Renata Moreira Barroso

2010-06-01

Full Text Available As comunidades quilombolas são consideradas comunidades negras rurais formadas por descendentes de africanos escravizados. No Vale do Ribeira, uma das regiões mais pobres do estado de São Paulo, estas comunidades vivem da agricultura de subsistência e principalmente da coleta do palmito juçara para complemento da renda familiar. A palmeira juçara possui importante papel ecológico e econômico para a Floresta Atlântica e para as comunidades rurais locais. O objetivo geral deste trabalho foi investigar aspectos etnoecológicos e etnobotânicos da palmeira juçara (Euterpe edulis Martius em comunidades quilombolas do Vale do Ribeira, SP. A investigação se deu em sete comunidades quilombolas através da aplicação de 25 entrevistas semi-estruturadas e da realização de uma oficina de identificação dos animais consumidores de frutos da palmeira. Também foram realizadas coletas e identificação de visitantes florais. Os quilombolas entrevistados demonstraram um detalhado conhecimento ecológico local sobre a palmeira juçara, principalmente a relação da biodiversidade animal associada à espécie. Neste trabalho a etnoecologia e a etnobotânica mostram-se ferramentas importantes no levantamento participativo do conhecimento ecológico local do E. edulis que pode ser considerado no manejo e na conservação da espécie na Floresta Atlântica."Quilombola" communities are distributed all over Brazil. They are composed of the descendents of African slaves. In the Ribeira River Valley, one of the poorest regions in São Paulo state, they practice subsistence agriculture and extract plant resources from the environment, especially the juçara palm (Euterpe edulis Martius, a species that contributes to "quilombola" income. The juçara palm has special ecological and economic importance for "quilombolas". The main aim of this study was to investigate ethnobotanical and ethnoecological aspects of the juçara palm in "quilombola" communities

José Martí e los indios de Norteamérica: mediazione culturale e «scontro di civiltà». Una rilettura critica

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Alessandro Badella

2010-01-01

Full Text Available The Cuban poet José Martí, “Master of the Americas” as pointed out by a famous Italian study by Carlo Batà, was probably the most important South American thinker of the two last decades of the Nineteenth century. This essay deals with the importance of “civilization clash” between US positivism - or WASP-ism - and the last resistances of Native Americans' cultural heritage during his personal experience as an exile in the United States. Martí, in this racial struggle and racist instincts, experienced a dual vision about the “Indian problem” in the Americas. In his first essays he focused on the positivistic view, really common among Latin American cultural élites (from Alberdi to Sarmiento, which depicted the Indian people as the burden of creole and white race in the path toward progress.On the other hand, as appeared clearly in Escenas americanas, the Cuban analysed more precisely the American struggle between civilization and savagery. In the cultural massacre inflicted to Indian tribes, he saw the real savagery in American civilization. So, this reflection paved the way to a new approach in considering the possibility of importing the Anglo-saxon model of civilization and political structures to the liberated Cuba after the independence (but also to continental Latin America.This relationship let us understand some interesting features in Martí's huge cultural production. We are introduced to the very essence of his cultural mediation between those two different lifestyles and models of civilization. This mediation would have represented a new way of intending North vs South America struggles or even Western way of life vs different ones, considered “barbarous” from the first.In our modern times, in which the terms “exporting values” or “civilization clash” seem to be very common in usage, it is really stimulating discover that the same problem was posed by Martí more than one century ago. Even if he did not

Influence of Light and Temperature on Gene Expression Leading to Accumulation of Specific Flavonol Glycosides and Hydroxycinnamic Acid Derivatives in Kale (Brassica oleracea var. sabellica).

Science.gov (United States)

Neugart, Susanne; Krumbein, Angelika; Zrenner, Rita

2016-01-01

Light intensity and temperature are very important signals for the regulation of plant growth and development. Plants subjected to less favorable light or temperature conditions often respond with accumulation of secondary metabolites. Some of these metabolites have been identified as bioactive compounds, considered to exert positive effects on human health when consumed regularly. In order to test a typical range of growth parameters for the winter crop Brassica oleracea var. sabellica, plants were grown either at 400 μmol m(-2) s(-1) or 100 μmol m(-2) s(-1) at 10°C, or at 400 μmol m(-2) s(-1) with 5 or 15°C. The higher light intensity overall increased flavonol content of leaves, favoring the main quercetin glycosides, a caffeic acid monoacylated kaempferol triglycoside, and disinapoyl-gentiobiose. The higher temperature mainly increased the hydroxycinnamic acid derivative disinapoyl-gentiobiose, while at lower temperature synthesis is in favor of very complex sinapic acid acylated flavonol tetraglycosides such as kaempferol-3-O-sinapoyl-sophoroside-7-O-diglucoside. A global analysis of light and temperature dependent alterations of gene expression in B. oleracea var. sabellica leaves was performed with the most comprehensive Brassica microarray. When compared to the light experiment much less genes were differentially expressed in kale leaves grown at 5 or 15°C. A structured evaluation of differentially expressed genes revealed the expected enrichment in the functional categories of e.g. protein degradation at different light intensities or phytohormone metabolism at different temperature. Genes of the secondary metabolism namely phenylpropanoids are significantly enriched with both treatments. Thus, the genome of B. oleracea was screened for predicted genes putatively involved in the biosynthesis of flavonoids and hydroxycinnamic acid derivatives. All identified B. oleracea genes were analyzed for their most specific 60-mer oligonucleotides present on the

RELATION OF Xylopia emarginata MART. POPULATION GENETIC ESTIMATIOS WITH SOIL CHEMISTRY CHARACTERISTICS

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Peterson Jaeger

2007-06-01

Full Text Available It is known that there is a relation between the biotic and abiotic environment and that this interaction reflects in the live organisms group of a place. The interactions between genotype and environment, also already recognized, act in a anolog way, but in a difficult mensurable constatation. In this way, the current research objectifies relating soil Chemistry characteristics with the heterozygosis levels of three Xylopia emarginata Mart. subpopulations. The generic analysis results demonstrated that the subpopulation 1 differs from other ones, showing significative Wright fixation index (-0.389, while non-significative values have been found in the subpopulations 2 and 3 (-0.105 and -0.209, respectely. This difference has also been observed by the Principal Component Analysis (PCA, where the subpopulation 1 has been influencianted by the tenors of organic material (MO, alumin (Al, effective cationic change capacity (t, pH 7.0 (T and sum of hydrogen and alumin (H+Al, while the subpopulations 2 and 3 have been influenciated by pH, phosphor (P and basis saturation index (V. In the same way, the allele 2 of EST-1 and MDH-2 are inversely related to pH, P and V end the allele 1 of GDH-3, SDH-3 and GTDH-3 directly related with MO, AL, t, T and H+Al. In studied populations of Xylopia emarginata Mart. the soil chemistry characteristics affected heterozygosis levels.

Missugustes virtuaalsetes võrgustikes sina kaasa lööd? / Johanna Helin, Mart Laanpere, Uno Traat ... [jt.

Index Scriptorium Estoniae

2008-01-01

Küsimusele vastavad maailmahariduse projekti "Vaata ja muuda!" juht Johanna Helin, TLÜ haridustehnoloogia keskuse juhataja Mart Laanpere, Sisekaitse Akadeemia kriminoloogia õppejõud Uno Traat, TLÜ Haapsalu kolledži direktor Eve Eisenschmidt, Kose Gümnaasiumi saksa keele õpetaja Astrid Sildnik, TÜ füüsika instituudi dotsent Toomas Plank

Betacyanins from Portulaca oleracea L. ameliorate cognition deficits and attenuate oxidative damage induced by D-galactose in the brains of senescent mice.

Science.gov (United States)

Wang, Chang-Quan; Yang, Gui-Qin

2010-06-01

This experiment was designed to assess the protective effect of betacyanins from Portulaca oleracea L. against the D-galactose (D-gal)-induced neurotoxicity in mice. Betacyanins from Portulaca oleracea markedly reversed the D-gal-induced learning and memory impairments, as measured by behavioral tests. The activities of superoxide dismutases (SOD), catalase (CAT), glutathione peroxidase (GPx) and glutathione reductase (GR) in D-gal-treated mice were enhanced, while the content of the lipid peroxidation product malondialdehyde (MDA) was decreased by betacyanin administration. Furthermore, significant negative correlations were found between mouse latency in finding the platform and the activities of SOD, CAT GR and GPx in the mouse brain, but the level of MDA correlated positively with the latency. These results suggest that the neuroprotective effect of betacyanins against D-gal-induced neurotoxicity might be caused, at least in part, by an increase in the activities of antioxidant enzymes with a reduction in lipid peroxidation. In comparison with vitamin C (VC), the betacyanins had a more pronounced effect on ameliorating cognition deficits in mice.

Agnets Bozhi v Tserkvi Sv. Katarinõ : V. Martõnov, J. Ljubimov i A. Mustonen sozdali Apokalipsis / Ilja Sundelevitsh

Index Scriptorium Estoniae

Sundelevitsh, Ilja

2001-01-01

15. ja 16. aprillil esietendus Katariina kirikus "Apokalypsis", eesti-vene ühisprojekt. Müsteeriumi lavastaja Juri Ljubimov, helilooja Vladimir Martõnov, dirigent Andres Mustonen (kaastegevad Eesti meestelaulu Seltsi poistekoor ja Tallinna poistekoor ning Rahvusmeeskoor), kunstnik Pille Jänes

Growth and Tissue Elemental Composition Response of Spinach (Spinacia oleracea) to Hydroponic and Aquaponic Water Quality Conditions

OpenAIRE

Daniel A. Vandam; Tyler S. Anderson; David de Villiers; Michael B. Timmons

2017-01-01

Spinach (Spinacia oleracea cv. Carmel) was grown in a conventional glass greenhouse under three different nutrient solution treatments. Lighting and temperature conditions were identical. Six growing systems were used to provide a duplicate trough system for each of these three treatments. Six trials were harvested from each system over a two month time period. Two treatments received hydroponic nutrient inputs, with one treatment at pH 7.0 (referred to as H7) and the other at pH 5.8 (H5), an...

Cloning and Characterization of the Genes Encoding the Murine Homologues of the Human Melanoma Antigens MART1 and gp100

Science.gov (United States)

Zhai, Yifan; Yang, James C.; Spiess, Paul; Nishimura, Michael I.; Overwijk, Willem W.; Roberts, Bruce; Restifo, Nicholas P.; Rosenberg, Steven A.

2008-01-01

The recent identification of genes encoding melanoma-associated antigens has opened new possibilities for the development of cancer vaccines designed to cause the rejection of established tumors. To develop a syngeneic animal model for evaluating antigen-specific vaccines in cancer therapy, the murine homologues of the human melanoma antigens MART1 and gp 100, which were specifically recognized by tumor-infiltrating lymphocytes from patients with melanoma, were cloned and sequenced from a murine B16 melanoma cDNA library. The open reading frames of murine MART1 and gp 100 encode proteins of 113- and 626-amino acids with 68.8 and 77% identity to the respective human proteins. Comparison of the DNA sequences of the murine MART1 genes, derived from normal melanocytes, the immortalized nontumorgenic melanocyte line Melan-a and the B16 melanoma, showed all to be identical. Northern and Western blot analyses confirmed that both genes encoded products that were melanocyte lineage proteins. Mice immunized with murine MART1 or gp 100 using recombinant vaccinia virus failed to produce any detectable T-cell responses or protective immunity against B16 melanoma. In contrast, immunization of mice with human gp 100 using recombinant adenoviruses elicited T cells specific for hgp100, but these T cells also cross reacted with B16 tumor in vitro and induced significant but weak protection against B16 challenge. Immunization with human and mouse gp100 together [adenovirus type 2 (Ad2)-hep100 plus recombinant vaccinia virus (rVV)-mgp100], or immunization with human gp100 (Ad2-hgp100) and boosting with heterologous vector (rVV-hgp100 or rVV-mgp100) or homologous vector (Ad2-hgp100), did not significantly enhance the protective response against B16 melanoma. These results may suggest that immunization with heterologous tumor antigen, rather than self, may be more effective as an immunotherapeutic reagent in designing antigen-specific cancer vaccines. PMID:9101410

Mart Susi müüb Concordia ülikooli hüvanguks Kolu mõisa / Sigrid Laev

Index Scriptorium Estoniae

Laev, Sigrid

2003-01-01

Concordia ülikooli rektor Mart Susi pani müüki endale kuuluva Kolu mõisa, et sellest saadava rahaga katta ülikooli vajadusi. Tallinna Pedagoogikaülikool on Concordia ostmisest huvitatud. Concordia ülikooli tudengid on teinud üleskutse ühinemiseks, et kooli tuleviku suhtes kaasa rääkida

Radioactivity and natural radionuclides distribution in river water, coastal water, sediment and Eichornia Crassipes (Mart) solms and their accumulation factor at Surabaya area

International Nuclear Information System (INIS)

Agus Taftazani; Sumining; Muzakky

2002-01-01

Distributions of radioactivity and natural radionuclides in water, sediment and eichornia crassipes (mart) solms from Surabaya River and coastal area have been evaluated. Five sampling locations were selected to represent fresh water and coastal water environment. The samples consist of water (fresh & coastal), bottom surface sediment and eichornia crassipes (mart) solms. The result showed that the gross-β activity from water environment were lower than the threshold value of Environmental Minister Act. Kep.02/MENKLH/I/1988 (1000 mBq/L) and indicated that β-radio ecological quality of water were still good. But the activity of the gross-α of water environment were higher than the threshold value of Environmental Minister Act. Kep.02/MENKLH/I/1988 (100 mBq/L). The eichornia crassipes (mart) solms (gross) activity were higher than water and sediment activities and indicated that transfer of radio nuclides from water to sediment and organism can be detected in water environment. Two natural radionuclide can be identified by γ-Spectrometric technique, they were K"4"0 and Tl"2"0"8. Generally the distribution factors F_D were smaller than bioaccumulation factor F_B. (author)

The philologist Pedro Martínez López: an imaginative liberal lampoonist | El filólogo Pedro Martínez López: un libelista liberal imaginativo

Directory of Open Access Journals (Sweden)

Aline Vauchelle-Haquet

2006-12-01

Full Text Available In 1830, the philologist Pedro Martínez López was forced to go into exile in France for political reasons. In 1832, he published Representación a Fernando VII, rey de España, a lampoon in which he made a whole string of accusations against the tyrant. At the end of the following year, he published España en 1833, al expirar Fernando VII, another lampoon in which he blamed the king's despotic reign for the country's disastrous situation and asserted that such abuses and injustices could only be remedied by re-establishing the Constitution of Cádiz of 1812. In 1834, he ceased to rail against his political enemies, changed strategy, and using his considerable imagination, wrote a kind of fable entitled Una noche en el infierno, vista entre sueños. With a mixture of humour and acid wit, it told of how all the devils in the Kingdom of Darkness, embracing the «sacred» cause of liberalism, vented their anger on the deceased Ferdinand and his followers, who were still in power. It would appear that the work was a success, since it was republished in 1836. In 1835, disillusioned with the tepid and conservative liberal regime of the Estatuto Real, Martínez López wrote another story, Las Brujas en Zugarramurdi, in which different satanic creatures, this time sorceresses, take it upon themselves to defeat moderantismo and establish a progressive regime. After this, he ceased to publish lampoons and political parables and devoted himself to producing learned works, bringing out various dictionaries and grammars which were republished several times. | En 1830, el filólogo Pedro Martínez López tuvo que exiliarse a Francia por motivos políticos. En 1832, sacó a luz en Burdeos una Representación a Fernando VII, rey de España, panfleto en el que espetaba toda una sarta de acusaciones contra el tirano. A finales del año siguiente, publicó La España en 1833, al expirar Fernando VII, otro libelo en que responsabilizaba al despotismo de la

Coinfection with Hepatozoon sp. and Canine Distemper Virus in a Yellow-throated Marten ( Martes flavigula koreana) in Korea.

Science.gov (United States)

Park, Surim; Choi, Ul Soo; Kim, Eun Ju; Lee, Jong Hyun; Lee, Hae Beom; Cho, Ho Seong; Kim, Wonil; Lim, Chae Woong; Kim, Bumseok

2016-04-28

We describe coinfection with Hepatozoon sp. and canine distemper virus (CDV) in a yellow-throated marten ( Martes flavigula koreana). We found Hepatozoon cysts in muscular tissue and viral inclusion bodies in the brain. Hepatozoon sp., and CDV was confirmed in blood and brain, respectively, by PCR.

Enesetapp - rääkida või vaikida? / Gerda Kordemets, Mart Laisk ja Merike Sisask ; intervjueerinud Tiina Jõgeda

Index Scriptorium Estoniae

Kordemets, Gerda, 1960-

2010-01-01

Kas noorte enesetappudest rääkimine toob matkijaid või on teemast rääkimine vajalik? Suitsiiditeemaga kokku puutunud Mart Laisk, Eesti Televisiooni uue sarja "Klass: elu pärast" üks režissööre Gerda Kordemets ja suitsidoloog Merike Sisask arutlevad

Aspectos entomológicos de la enfermedad de Chagas en Huallaga y Picota, San Martín, Perú

Directory of Open Access Journals (Sweden)

Abraham G. Cáceres

2010-03-01

Full Text Available Introducción: Existe escasa información y no actualizada sobre la presencia de triatominos en el departamento de San Martín, zona amazónica de nuestro país, y es importante actualizarla, ya que hay reportes recientes de casos de enfermedad de Chagas procedentes de la amazonía peruana cuyos vectores serían triatominos silvestres. Objetivos: Conocer la distribución geográfica de triatominos hematófagos en Huallaga y Picota, San Martín, Perú. Determinar los índices entomológicos, sus hábitos alimenticios y caracterizar los tripanosomatídeos que portan. Diseño: Investigación descriptiva observacional. Lugar: Red de Salud Huallaga y Picota, Laboratorio Regional de la Región de Salud San Martín. Laboratorios del Instituto Nacional de Salud. Participantes: Viviendas de 6 distritos de las provincia de Huallaga y 9 de Picota, del Departamento de San Martín. Intervenciones: La búsqueda de triatominos fue en 3 362 viviendas de áreas periurbanas y rurales. Mediante la prueba de precipitina, se determinó la fuente de alimentación. Se aisló tripanosomatídeos mediante infección en ratones Balb/C e inoculación en medio agar sangre, y por PCR se caracterizó el genoma por amplificación del espaciador intergénico del gen miniexón. Principales medidas de resultados: Determinar si Huallaga y Picota, San Martín, Perú, son zonas de riesgo de enfermedad de Chagas. Resultados: En 46 viviendas, de 3 362 muestreadas se capturó 53 triatominos adultos pertenecientes a Rhodnius pictipes (56,6%, Panstrongylus geniculatus (41,5% y Eratyrus mucronatus (1,9%. Se reporta P. geniculatus por primera vez para las dos provincias. Los índices de infestación para ambas provincias fueron 1,4% y 3,8%, respectivamente, y corresponden al índice de infección natural; mientras que el índice de dispersión fue 30,1%. En R. pictipes se identificó cinco fuentes de alimentación (pollo, humano, perro, cobayo y gato y en P. geniculatus un perfil

Effects of Galanthus nivalis agglutinin (GNA) expressed in tomato leaves on larvae of the tomato moth Lacanobia oleracea (Lepidoptera: Noctuidae) and the effect of GNA on the development of the endoparasitoid Meteorus gyrator (Hymenoptera: Braconidae).

Science.gov (United States)

Wakefield, M E; Bell, H A; Fitches, E C; Edwards, J P; Gatehouse, A M R

2006-02-01

The effect of ingestion of transgenic tomato leaves expressing the plant lectin Galanthus nivalis agglutinin (GNA) on development of larvae of Lacanobia oleracea (Linnaeus) was studied under laboratory conditions. When L. oleracea larvae were fed on tomato line 14.1H, expressing approximately 2.0% GNA, significant increases in the mean larval weight and in the amount of food consumed were found. This resulted in an overall reduction in the mean development time to the pupal stage of approximately 7 days. A significant increase in the percentage survival to the adult moth was also recorded when newly hatched larvae were reared on transgenic tomato leaves (72%) compared to larvae reared on untransformed leaves (40%). The effects of ingestion of GNA by L. oleracea larvae, via artificial diet or the leaves of transgenic tomato or potato plants, on the subsequent development of its solitary endoparasitoid Meteorus gyrator (Thunberg) was also studied. No significant effects on the life cycle parameters of M. gyrator developing in L. oleracea fed on GNA-containing diets were observed. Experiments with transgenic potato plants indicated that the stadium of the host larvae at parasitism had a greater influence on M. gyrator development than the presence of GNA. Potential GNA-binding glycoproteins were detected in the gut and body tissues of larval M. gyrator. Despite detection in host tissues, GNA could not be detected in adult M. gyrator and therefore it is likely that at the time of pupation M. gyrator are able to void the GNA in the meconial pellet.

Mis on läbilöömiseks elutähtis? / Siret Liivamägi, Ando Rehemaa, Mart Proos ... [jt.

Index Scriptorium Estoniae

2009-01-01

Küsimusele vastavad Villa Benita juhatuse esimees Siret Liivamägi, registrite ja infosüsteemide keskuse direktor Ando Rehemaa, AS Favor juhatuse esimees Mart Proos, Swedbanki grupi finantsjuht Erkki Raasuke, Euroopa Komisjoni asepresident Siim Kallas

A study on the GC-MS analysis of bioactive components and pancreato-protective effect of methanolic extract of Brassica oleracea L. var. botrytis.

Science.gov (United States)

Rajapriya, Sadanandan; Geetha, Arumugam; Ganesan Kripa, Kavasseri

2017-09-01

The ever-increasing problem of pancreatitis due to alcohol abuse demands evaluation of novel drugs of plant origin. This study explores the therapeutic effects of the methanolic extract of Brassica oleraceae (MEBO) on ethanol and cerulein induced pancreatitis in rats. The MEBO was subjected to GC-MS and HPLC analysis. Male albino Wistar rats were divided into various groups, fed with alcohol (36% of total calories for 5 weeks) and cerulein (20 μg/kg b.wt i.p, weekly thrice for last three weeks) with or without MEBO (40 mg/kg b.wt). Serum lipase, amylase, IL-1β, IL-18, caspase-1, lipid peroxides, oxidative stress index and antioxidant status were assessed in pancreas. Six compounds were identified in GC-MS analysis. Co-administration of MEBO reduced the pancreatic marker enzymes in serum, IL-1β, IL-18 and caspase-1 and increased the antioxidant status of pancreas. The pancreato-protective effect of Brassica oleraceae may be attributed to well-known anti-inflammatory flavonoids, luteolin, quercetin and myricetin.

Three Novel Alkaloids from Portulaca oleracea L. and Their Anti-inflammatory Effects.

Science.gov (United States)

Li, Cui-Yu; Meng, Yi-Han; Ying, Zhe-Ming; Xu, Nan; Hao, Dong; Gao, Ming-Zhe; Zhang, Wen-Jie; Xu, Liang; Gao, Yu-Cong; Ying, Xi-Xiang

2016-07-27

Three novel carbon skeleton alkaloids, named oleracimine (1), oleracimine A (2), and oleracone A (3), with one novel azulene carbon skeleton compound, oleracone B (4), and one known compound, β-carboline (5), were first isolated from Portulaca oleracea L. The structures were determined using spectroscopic methods, including one- and two-dimensional nuclear magnetic resonance and high-resolution electrospray ionization time-of-flight mass spectrometry techniques. In addition, oleracimine (1) was used to investigate the anti-inflammatory effects on lipopolysaccharide-stimulated macrophages. The results of enzyme-linked immunosorbent assay, western blot, and real-time polymerase chain reaction showed that oleracimine (1) remarkably inhibited nitric oxide production and could dose-dependently decrease the secretions of interleukin 6, tumor necrosis factor α, nitric oxide, and prostaglandin E2 in cell culture supernatants as well as the mRNA of cyclooxygenase-2 and inducible nitric oxide synthase.

Colorless chlorophyll catabolites in senescent florets of broccoli (Brassica oleracea var. italica).

Science.gov (United States)

Roiser, Matthias H; Müller, Thomas; Kräutler, Bernhard

2015-02-11

Typical postharvest storage of broccoli (Brassica oleracea var. italica) causes degreening of this common vegetable with visible loss of chlorophyll (Chl). As shown here, colorless Chl-catabolites are generated. In fresh extracts of degreening florets of broccoli, three colorless tetrapyrrolic Chl-catabolites accumulated and were detected by high performance liquid chromatography (HPLC): two "nonfluorescent" Chl-catabolites (NCCs), provisionally named Bo-NCC-1 and Bo-NCC-2, and a colorless 1,19-dioxobilin-type "nonfluorescent" Chl-catabolite (DNCC), named Bo-DNCC. Analysis by nuclear magnetic resonance spectroscopy and mass spectrometry of these three linear tetrapyrroles revealed their structures. In combination with a comparison of their HPL-chromatographic properties, this allowed their identification with three known catabolites from two other brassicacea, namely two NCCs from oil seed rape (Brassica napus) and a DNCC from degreened leaves of Arabidopsis thaliana.

Identification of a novel MLPK homologous gene MLPKn1 and its expression analysis in Brassica oleracea.

Science.gov (United States)

Gao, Qiguo; Shi, Songmei; Liu, Yudong; Pu, Quanming; Liu, Xiaohuan; Zhang, Ying; Zhu, Liquan

2016-09-01

M locus protein kinase, one of the SRK-interacting proteins, is a necessary positive regulator for the self-incompatibility response in Brassica. In B. rapa, MLPK is expressed as two different transcripts, MLPKf1 and MLPKf2, and either isoform can complement the mlpk/mlpk mutation. The AtAPK1B gene has been considered to be the ortholog of BrMLPK, and AtAPK1B has no role in self-incompatibility (SI) response in A. thaliana SRK-SCR plants. Until now, what causes the MLPK and APK1B function difference during SI response in Brassica and A. thaliana SRKb-SCRb plants has remained unknown. Here, in addition to the reported MLPKf1/2, we identified the new MLPKf1 homologous gene MLPKn1 from B. oleracea. BoMLPKn1 and BoMLPKf1 shared nucleotide sequence identity as high as 84.3 %, and the most striking difference consisted in two fragment insertions in BoMLPKn1. BoMLPKn1 and BoMLPKf1 had a similar gene structure; both their deduced amino acid sequences contained a typical plant myristoylation consensus sequence and a Ser/Thr protein kinase domain. BoMLPKn1 was widely expressed in petal, sepal, anther, stigma and leaf. Genome-wide survey revealed that the B. oleracea genome contained three MLPK homologous genes: BoMLPKf1/2, BoMLPKn1 and Bol008343n. The B. rapa genome also contained three MLPK homologous genes, BrMLPKf1/2, BraMLPKn1 and Bra040929. Phylogenetic analysis revealed that BoMLPKf1/2 and BrMLPKf1/2 were phylogenetically more distant from AtAPK1A than Bol008343n, Bra040929, BraMLPKn1 and BoMLPKn1, Synteny analysis revealed that the B. oleracea chromosomal region containing BoMLPKn1 displayed high synteny with the A. thaliana chromosomal region containing APK1B, whereas the B. rapa chromosomal region containing BraMLPKn1 showed high synteny with the A. thaliana chromosomal region containing APK1B. Together, these results revealed that BoMLPKn1/BraMLPKn1, and not the formerly reported BoMLPKf1/2 (BrMLPKf1/2), was the orthologous genes of AtAPK1B, and no ortholog of Bo

Realismo, margen y fragmentariedad en la narrativa de Ezequiel Martínez Estrada

OpenAIRE

Gasillón, María Lourdes

2012-01-01

En primer lugar, este trabajo intenta analizar los ensayos escritos por Ezequiel Martínez Estrada sobre Franz Kafka (1967) para luego reconocer sus influencias en el concepto de lo real y realismo en sus propias narraciones ficcionales. En este caso, se abordará uno de sus cuentos más conocidos, “Marta Riquelme”, que construye discursivamente una imagen de lo/s otro/s en distintos planos textuales: autor, narrador, organización, género, personajes, etc. Tanto el ensayista argentino como el es...

Interaction between metabolism of atmospheric H2S in the shoot and sulfate uptake by the roots of curly kale (Brassica oleracea)

NARCIS (Netherlands)

Westerman, S; De Kok, LJ; Stulen, I.; Stuiver, C.Elisabeth E.

Exposure of curly kale (Brassica oleracea L.,) to gaseous H2S resulted in a decreased sulfate uptake by the roots. At 0.2 mu l l(-1) H2S, a level sufficient to meet the sulfur need of plants for growth, the sulfate uptake was maximally decreased by 50% after 3 or 4 days of exposure. Higher levels up

Effects of Biofertilizer Containing Microbial of N-fixer, P Solubilizer and Plant Growth Factor Producer on Cabbage (Brassica oleraceae var. Capitata Growth And Soil Enzymatic Activities: A Greenhouse Trial

Directory of Open Access Journals (Sweden)

Sarjiya Antonius

2012-05-01

Full Text Available The objective of this greenhouse study was to evaluate the effects of four different concentrations of biofertilizers containing Pseudomonas sp., Bacillus sp. and Streptomyces sp. on soil properties and to evaluate the growth of Brassica oleraceae var. capitata. The application treatments included control (no fertilizer and four concentration of diluted biofertilizer per pot (20 ml, 40 ml, 60 mland 80 ml. The application of biofertilizer containing benefi cial bacteria signifi cantly increased the growth of B. oleraceae. The useof biofertilizer resulted higher biomass weight and length as well as root length. This greenhouse study also indicated that differentamount of biofertilizer application had almost similar effects. Microbial inoculum not only increased plant harvest, but also improvedsoil properties, such as number of microorganisms, respiration and urease activities.

Purification and characterization of an antitumor polysaccharide from Portulaca oleracea L.

Science.gov (United States)

Shen, Huan; Tang, Guo; Zeng, Guang; Yang, Yongjin; Cai, Xingwei; Li, Dongli; Liu, Hongchen; Zhou, Ningxin

2013-04-02

In the present study, we purified a unique polysaccharide component (POP) from Portulaca oleracea and found that it had pronounced anti-tumor effects in vivo model. Tumor weight, immune organ index and T lymphocyte subsets were employed to detect the immunoregulatory and antitumor effects of POP after administration. Hematological and biochemical analyses were also investigated in order to evaluate the toxicological aspects related to POP treatment. POP could significantly inhibit the growth of transplantable sarcoma 180 and potentiate the animal's immune responses including an increase in the number of white blood cell (WBC) and CD4(+) T-lymphocytes, as well as the ratio of CD4(+)/CD8(+). Furthermore the serum aspartate transanimase (AST), alanine transaminase (ALT), urea nitrogen (BUN), and creatinine levels in S180-bearing mice were significantly reversed by POP. Considering all these results, it is suggested that the anti-tumor effect elicited by POP could be associated with its immunostimulating properties. Copyright © 2012 Elsevier Ltd. All rights reserved.

Radioactivity and Natural Radio nuclides Distribution in River Water, Coastal Water, Sediment and Eichornia Crassipes (Mart) Sloms and Their Accumulation Factor at Surabaya Area

International Nuclear Information System (INIS)

Agus Taftazani; Sumining; Muzakky

2002-01-01

Distribution of radioactivity and natural radionuclide in water, sediment and eichornia crassipes (mart) sloms from Surabaya river and coastal area have been evaluated. Five sampling locations were selected to represent fresh water and coastal water environment. The samples consist of water (fresh and coastal), bottom surface sediment and eichornia crassipes (mart) sloms The result showed that the gross-β activity from water environment were lower than the threshold value of Environmental Minister Act. Kep.02/MENKLH/I/1988 (1000 mBq/L) and indicated that β-radioecological quality of water were still good. But the activity of the gross-α of water environment were higher than the threshold value of Environmental Minister Act. Kep.02/MENKLH/I/1988 (100 mBq/L). The eichornia crassipes (mart) sloms (gross) activity were higher than water and sediment activities and indicated that transfer of radionuclides from water to sediment and organism can be detected in water environment. Two natural radionuclides can be identified by γ-Spectrometric technique, they were K-40 and TI-208. Generally the distribution factor F D were smaller than bioaccumulation factor F B . (author)

The broccoli (Brassica oleracea) phloem tissue proteome.

Science.gov (United States)

Anstead, James A; Hartson, Steven D; Thompson, Gary A

2013-11-07

The transport of sugars, hormones, amino acids, proteins, sugar alcohols, and other organic compounds from the sites of synthesis to the sites of use or storage occurs through the conducting cells of the phloem. To better understand these processes a comprehensive understanding of the proteins involved is required. While a considerable amount of data has been obtained from proteomic analyses of phloem sap, this has mainly served to identify the soluble proteins that are translocated through the phloem network. In order to obtain more comprehensive proteomic data from phloem tissue we developed a simple dissection procedure to isolate phloem tissue from Brassica oleracea. The presence of a high density of phloem sieve elements was confirmed using light microscopy and fluorescently labeled sieve element-specific antibodies. To increase the depth of the proteomic analysis for membrane bound and associated proteins, soluble proteins were extracted first and subsequent extractions were carried out using two different detergents (SDS and CHAPSO). Across all three extractions almost four hundred proteins were identified and each extraction method added to the analysis demonstrating the utility of an approach combining several extraction protocols. The phloem was found to be enriched in proteins associated with biotic and abiotic stress responses and structural proteins. Subsequent expression analysis identified a number of genes that appear to be expressed exclusively or at very high levels in phloem tissue, including genes that are known to express specifically in the phloem as well as novel phloem genes.

La poesía como vaso comunicante entre los Cuadernos de apuntes de José Martí y los de José Lezama Lima

OpenAIRE

Atencio, Caridad

2015-01-01

Este artículo estudia los llamados Diarios del poeta José Lezama Lima, que recogen anotaciones suyas entre los años 1939-1949 y entre 1956-1958, para analizar cómo se refleja en ambos textos el interés por la poesía y la reflexión acerca de la misma. Sus anotaciones son comparadas con las de José Martí, percibiendo que mientras que la poesía era para Martí la forma suprema de la literatura, para Lezama llegó a ser un método de conocimiento de la realidad, la categoría central a la que conduce...

Flavonoids in baby spinach (Spinacia oleracea L.): Changes during plant growth and storage

DEFF Research Database (Denmark)

Bergquist, S. Å. M.; Gertsson, U. E.; Knuthsen, Pia

2005-01-01

were analyzed by reversed phase HPLC. Twelve flavonoid peaks were detected. The main flavonoid, making up on average 43% of the total flavonoid concentration, was identified as 5,3',4'-trihydroxy-3-methoxy-6:7-methylenedioxyflavone-4'-glucuronide. Four other flavonoids each contributed 7......The variation in flavonoid concentration and composition was investigated in baby spinach (Spinacia oleracea L.) cv. Emilia sown on three occasions, each harvested at three growth stages at 6-day intervals. After harvest, leaves were stored in polypropylene bags at 2 or 10 degrees C. Flavonoids......-12% of the total flavonoid content. Total flavonoid content was relatively stable during normal retail storage conditions, although some of the individual flavonoid compounds showed considerable variation. The youngest plants had the highest flavonoid concentration, indicating that by harvesting the baby spinach...

SOLID2: an antibody array-based life-detector instrument in a Mars Drilling Simulation Experiment (MARTE).

Science.gov (United States)

Parro, Víctor; Fernández-Calvo, Patricia; Rodríguez Manfredi, José A; Moreno-Paz, Mercedes; Rivas, Luis A; García-Villadangos, Miriam; Bonaccorsi, Rosalba; González-Pastor, José Eduardo; Prieto-Ballesteros, Olga; Schuerger, Andrew C; Davidson, Mark; Gómez-Elvira, Javier; Stoker, Carol R

2008-10-01

A field prototype of an antibody array-based life-detector instrument, Signs Of LIfe Detector (SOLID2), has been tested in a Mars drilling mission simulation called MARTE (Mars Astrobiology Research and Technology Experiment). As one of the analytical instruments on the MARTE robotic drilling rig, SOLID2 performed automatic sample processing and analysis of ground core samples (0.5 g) with protein microarrays that contained 157 different antibodies. Core samples from different depths (down to 5.5 m) were analyzed, and positive reactions were obtained in antibodies raised against the Gram-negative bacterium Leptospirillum ferrooxidans, a species of the genus Acidithiobacillus (both common microorganisms in the Río Tinto area), and extracts from biofilms and other natural samples from the Río Tinto area. These positive reactions were absent when the samples were previously subjected to a high-temperature treatment, which indicates the biological origin and structural dependency of the antibody-antigen reactions. We conclude that an antibody array-based life-detector instrument like SOLID2 can detect complex biological material, and it should be considered as a potential analytical instrument for future planetary missions that search for life.

Historical biogeography sets the foundation for contemporary conservation of martens (genus Martes) in northwestern North America

Science.gov (United States)

Dawson, Natalie G.; Colella, Jocelyn P.; Small, Maurine P.; Stone, Karen D.; Talbot, Sandra L.; Cook, Joseph A.

2017-01-01

Effective conservation of insular populations requires careful consideration of biogeography, including colonization histories and patterns of endemism. Across the Pacific Northwest of North America, Pacific martens (Martes caurina) and American pine martens (Martes americana) are parapatric sister species with distinctive postglacial histories. Using mitochondrial DNA and 12 nuclear microsatellite loci, we examine processes of island colonization and anthropogenic introductions across 25 populations of martens. Along the North Pacific Coast (NPC), M. caurina is now found on only 2 islands, whereas M. americana occurs on mainland Alaska and British Columbia and multiple associated islands. Island populations of M. caurina have a longer history of isolation reflected in divergent haplotypes, private microsatellite alleles, and relatively low within-population diversity. In contrast, insular M. americanahave lower among-population divergence and higher metrics of within-population diversity. On some NPC islands, introductions of M. americana may be related to decline of M. caurina. Long-term persistence of these species likely has been influenced by anthropogenic manipulations, including wildlife translocations and industrial-scale deforestation, yet, the distinctive histories of these martens have not been incorporated into natural resource policies.

Effect of nitrogen source in the fertilizing solution on nutritional quality of three members of the Portulaca oleracea aggregate.

Science.gov (United States)

Szalai, Gabriella; Dai, Nir; Danin, Avinoam; Dudai, Nativ; Barazani, Oz

2010-09-01

Portulaca oleracea (purslane) is nutritious but, in addition to the essential alpha-linolenic acid, vitamin C and tocopherols, it contains undesirable oxalic acid. Knowing the effects of nitrate and ammonium on oxalate accumulation, we tested the agronomic potential of three members of the P. oleracea aggregate under various nitrogen fertilization conditions, by measuring biomass production and accumulation of fatty acids, organic acids and tocopherol in the commercial P. sativa (Pos) and two natural members: P. nitida (Pon) and P. papillato-stellulata (Pop). With nitrate as the sole N source, we measured differences between Pon and Pos in concentrations of the essential omega-3 fatty acid alpha-linolenic acid. Pos also gained less dry biomass under these conditions, implying a higher agronomical and nutritional value for Pon. Increasing the fertilizer ammonium concentration and reducing that of nitrate significantly decreased oxalic acid by factors of up to 1.7, 2.6 and 3.4 in Pos, Pop and Pon, respectively, significantly increased concentrations of tocopherol and malic acid, had no effect on fatty acids or ascorbic acid, but reduced biomass. In spite of the recumbent growth habit of Pon, the present findings indicate its agronomic potential. Because early flowering and seed production may be the limiting factors in purslane agriculture, growing Pon in nitrate-poor conditions might be agriculturally favorable. Copyright 2010 Society of Chemical Industry.

Atividade antimicrobiana do extrato alcoólico do fruto da Caesalpinia ferrea Mart

OpenAIRE

Tomaz, Klívio Loreno Raulino

2010-01-01

O tratamento usual da mastite bovina é realizado com administração de antimicrobianos, que muitas vezes, promovem a resistência bacteriana a esses compostos. Medicamentos fitoterápicos têm sido utilizados, porém nem todas essas opções apresentam comprovação científica acerca da eficácia de ação contra os agentes causadores da enfermidade. O objetivo desse estudo foi avaliar a atividade antimicrobiana do extrato alcoólico do fruto da Caesalpinia ferrea Mart. frente a bactérias c...

Effects of Portulaca oleracea L. Polysaccharides on Phenotypic and Functional Maturation of Murine Bone Marrow Derived Dendritic Cells.

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Zhao, Rui; Zhang, Tao; Zhao, Hui; Cai, Yaping

2015-01-01

Portulaca oleracea L. is an annual plant widely distributed from the temperate to the tropical zones. POL-P3b, a polysaccharide fraction purified from Portulaca oleracea L., is able to enhance immunity and inhibit tumor formation. Induction of antitumor immunity by dendritic-tumor fusion cells can be modulated by their activation status. Mature dendritic cells are significantly better than immature dendritic cells at cytotoxic T-lymphocyte induction. In this study, we analyzed the effects of POL-P3b on the maturation and function of murine bone-marrow-derived dendritic cells (DCs) and relevant mechanisms. The phenotypic maturation of DCs was confirmed by flow cytometry. We found that POL-P3b upregulated the expression of CD80, CD86, CD83, and major histocompatibility complex class II molecules on DCs, stimulated production of more interleukin (IL)-12, tumor necrosis factor-α, and less IL-10. Also, DCs pulsed POL-P3b and freeze-thaw antigen increased DCs-driven T cells' proliferation and promoted U14 cells' apoptosis. Furthermore, the expression of TLR-4 was significantly increased on DCs treated by POL-P3b. These results suggested that POL-P3b may induce DCs maturation through TLR-4. Taken together, our results may have important implications for the molecular mechanisms of immunopotentiation of POL-P3b, and provide direct evidence to suggest that POL-P3b should be considered as a potent adjuvant nutrient supplement for DC-based vaccines.

Identification of metabolic QTLs and candidate genes for glucosinolate synthesis in Brassica oleracea leaves, seeds and flower buds.

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Tamara Sotelo

Full Text Available Glucosinolates are major secondary metabolites found in the Brassicaceae family. These compounds play an essential role in plant defense against biotic and abiotic stresses, but more interestingly they have beneficial effects on human health. We performed a genetic analysis in order to identify the genome regions regulating glucosinolates biosynthesis in a DH mapping population of Brassica oleracea. In order to obtain a general overview of regulation in the whole plant, analyses were performed in the three major organs where glucosinolates are synthesized (leaves, seeds and flower buds. Eighty two significant QTLs were detected, which explained a broad range of variability in terms of individual and total glucosinolate (GSL content. A meta-analysis rendered eighteen consensus QTLs. Thirteen of them regulated more than one glucosinolate and its content. In spite of the considerable variability of glucosinolate content and profiles across the organ, some of these consensus QTLs were identified in more than one tissue. Consensus QTLs control the GSL content by interacting epistatically in complex networks. Based on in silico analysis within the B. oleracea genome along with synteny with Arabidopsis, we propose seven major candidate loci that regulate GSL biosynthesis in the Brassicaceae family. Three of these loci control the content of aliphatic GSL and four of them control the content of indolic glucosinolates. GSL-ALK plays a central role in determining aliphatic GSL variation directly and by interacting epistatically with other loci, thus suggesting its regulatory effect.

Effect of sodium chloride on photosynthetic 14CO2 assimilation in Portulaca oleracea Linn

International Nuclear Information System (INIS)

Joshi, G.V.; Karadge, B.A.

1979-01-01

Effect of NaCl on ion uptake, photosynthetic rate and photosynthetic products in a C 4 non-CAM succulent, P. oleracea has been investigated. NaCl causes accumulation of Na as well as Cl ions with decrease in K and Ca contents. Chlorophylls and photosynthetic 14 CO 2 fixation rates are adversely affected due to sodium chloride salinity. Plants grown in the presence of NaCl show increase in C 4 acid percentage with increase in labelling of organic acids in light. Labelling of amino acids (particularly alanine) and sugars (sucrose) is affected by NaCl. Enzyme studies reveal that PEP-carboxylase is stimulated at all concentrations of NaCl but higher concentrations affected the activity of RuBP-Carboxylase. (author)

The export of national varieties of capitalism: the cases of Wal-Mart and Ikea

OpenAIRE

Konzelmann, Suzanne J.; Wilkinson, F.; Craypo, C.; Aridi, R.

2005-01-01

Using the cases of Wal-Mart and IKEA, this paper takes a productive systems approach to examine ‘varieties of capitalism’ from the perspective of the ways by which production and market relations are structured and prioritised. It considers the nature of these relations and their interaction within the domestic economy and the ways that firms and national systems interact with each other\\ud in the global economy. It examines the processes by which trading standards are transported via supply ...

Nivel de conocimiento y su relación con la violencia familiar en padres de niños asistentes al CMI Enrique Martín Altura - 2015

OpenAIRE

Chamamé Ampuero, Eva Verónica

2015-01-01

OBJETIVO: Determinar la relación entre el conocimiento y la violencia familiar en padres de niños asistentes al consultorio de crecimiento y desarrollo del CMI Enrique Martín Altuna durante setiembre de 2015. MÉTODOS: Se llevó a cabo un estudio cuantitativo de tipo descriptivo y de corte transversal con 180 padres de niños del CMI Enrique Martín Altuna durante setiembre del 2015. En la recolección de los datos se utilizó un cuestionario con 22 preguntas: 20 sobre con...

Fur-rubbing with Piper leaves in the San Martín titi monkey, Callicebus oenanthe

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R. Huashuayo-Llamocca

2017-06-01

Full Text Available We report observations on fur-rubbing with leaves from Piper aduncum by a San Martín titi monkey, Callicebus oenanthe. Fur-rubbing occurred during the transition from the dry to the rainy season in a titi monkey group living in a forest fragment in the Moyobamba region of Peru. Since Piper leaves include very potent compounds that may affect ectoparasites, we tentatively interpret the observed fur-rubbing as self-medication.

Effect of Deinococcus radiodurans on uptake of 134Cs by Brassica oleracea

International Nuclear Information System (INIS)

Zhu Cong; Guo Jiangfeng

2008-01-01

Deinococcus radiodurans was inoculated into the soil which was spiked with 134 Cs to investigate its effect on chemical speciation of 134 Cs. The relationship between chemical speciation of 134 Cs and its absorbtion capacity by cabbage (Brassica oleracea) in the presence of D. radiodurans was also investigated. The results showed that an increase of 28.64%-38.17 % in content of 134 Cs in residual phase was observed with presence of D. radiodurans in comparison with the aseptic control. The amounts of radiocesium uptaken by cabbage were about 12100Bq/g under aseptic conditions, however, which were about 8500Bq/g with the presence of D. radiodurans. The proportion of 134 Cs taken up by cabbage decreased about 29% in comparison with the aseptic control. The chemical speciation could be influenced by D. radiodurans so that its uptake by plants could be reduced. (authors)

Structural analysis of an innate immunostimulant from broccoli, Brassica oleracea var. italica.

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Urai, Makoto; Kataoka, Keiko; Nishida, Satoshi; Sekimizu, Kazuhisa

2017-11-22

Vegetables are eaten as part of a healthy diet throughout the world, and some are also applied topically as a traditional medicine. We evaluated the innate immunostimulating activities of hot water extracts of various vegetables using the silkworm muscle contraction assay system, and found that broccoli, Brassica oleracea var. italica, contains a strong innate immunostimulant. We purified the innate immunostimulant from broccoli, and characterized the chemical structure by chemical analyses and NMR spectroscopy. The innate immunostimulant comprised galacturonic acid, galactose, glucose, arabinose, and rhamnose, and had a pectic-like polysaccharide structure. To determine the structural motif involved in the innate immunostimulating activity, we modified the structure by chemical and enzymatic treatment, and found that the activity was attenuated by pectinase digestion. These findings suggest that a pectic-like polysaccharide purified from broccoli has innate immune-stimulating activity, for which the polygalacturonic acid structure is necessary.

Evaluation of the effects of gamma radiation in minimally processed vegetables of Brassica oleracea species; Avaliacao dos efeitos da radiacao gama em vegetais da especie Brassica oleracea minimamente processados

Energy Technology Data Exchange (ETDEWEB)

Nunes, Thaise Cristine Fernandes

2009-07-01

The consumption of collard greens (Brassica oleracea cv. acephala) and broccoli (Brassica oleracea L. var. italica) has been inversely associated with morbidity and mortality caused by degenerative diseases. These species are highly consumed in Brazil, which enables its use as minimally processed (MP). The growing worldwide concern with the storage, nutritional quality and microbiological safety of food has led to many studies aimed at microbiological analysis, vitamin and shelf life. To improve the quality of these products, radiation processing can be effective in maintaining the quality of the product, rather compromising their nutritional values and sensory. The aim of this study was to evaluate the effectiveness of gamma radiation from {sup 60}Co at doses of 0, 1.0 and 1.5 kGy on the reduction of microbiota in these plants, and analyze their nutritional and sensory characteristics. The methodology used in this study was microbiological analysis, colorimetric analysis, analysis of phenolic compounds, antioxidant analysis and sensory analysis. The microbiological analysis showed a decrease in the development of populations of aerobic microorganisms, psychotropic and yeast and mold with increasing doses of radiation. The sensory analysis showed no significant difference between different times of cooking analyzed. The analysis of phenolic compounds, significant differences between the samples, suggesting that with increasing dose of irradiation was an increase in the amount of phenolic compounds found in broccoli and collard greens MP. It can be observed that the sample of control collard greens showed high antioxidant activity and for the samples treated by irradiation was a decrease of percentage. In contrast the samples of broccoli show an increase in the rate of scavenging DPPH with increase of the dose of radiation. The colorimetric analysis revealed that for samples of MP collard greens and broccoli foil of no significant differences, but for samples of

Arranjos agroflorestais no contexto da agroecologia: O caso dos agricultores da região do Médio Maracá no município do Mazagão, Amapá

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Hilaíres Lima Maciel

2015-12-01

Full Text Available Objetivou-se identificar localmente os diferentes arranjos, práticas e manejos agroflorestais, desenvolvidos pelos agricultores da região do Médio Maracá no município do Mazagão. Para a pesquisa foram adotadas observações diretas desenvolvida em duas etapas: a primeira constou de pesquisa e revisão bibliográficas. A segunda etapa da pesquisa foi realizada em campo. Identificou-se que as tipologias Quintal Florestal possuem área média 0,5 ha e a agrossilvicultura com área média de 5,5 ha. Quanto às espécies utilizadas o açaizeiro (Euterpe oleracea, o cupuaçuzeiro (Theobroma Grandiflorum, e a bacabeira (Oenocarpus bacaba, apresentaram maior frequência na composição dos sistemas pesquisados. Entre os lotes constatou-se uma média de 10 de espécies frutíferas por lote, quanto às essências florestais a média variou de 10 a 15 espécies. Nesta perspectiva, resgatar práticas e manejos tradicionais baseadas empiricamente nos princípios dos sistemas agroflorestais, se reveste de grande importância para apoiar implantação de sistemas produtivos com base na agroecologia.Agroforestry arrangements in the context of agroecology: The case of the farmers of the Middle Maracá region in the municipality of Mazagão, state AmapáAbstract: Aim to locally identify the different arrangements, practices and agroforestry management practices developed by farmers of the Middle Maracá region in the city of El Jadida. For research direct observations developed in two stages were adopted: the first consisted of research and bibliographic review. The second stage of the research was carried out in the field. It was found that the Forest Yard types have average size 0.5 ha and agroforestry with an average area of 5.5 ha. As for the species used the açaí (Euterpe oleracea, the cupuaçu (Theobroma grandiflorum, and the bacabeira (Oenocarpus bacaba, had a higher frequency in the composition of the investigated systems. Among the lots found an

(ReConstrução Mítica de Eva Perón no Romance Santa Evita (1996 – Tomás Eloy Martínez

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Josiane Valcarenghi Ribeiro Nantes

2017-06-01

Full Text Available Eva Perón é um nome significativo na história política da Argentina, sua influência surtiu, e continua surtindo efeito, no povo desse país até os dias atuais. “Evita” foi odiada/amada em níveis extremos, tanto que foi considerada uma santa, um mito para muitas pessoas. Tomás Eloy Martínez escreveu o romance – Santa Evita (1995 – em que narra como viveu a esposa de Juan Domingo Perón. Nesta obra encontra-se muitos elementos que dão indícios da (remitificação de Eva, por isso tenta-se aqui, explorar como se deu a (reconstrução mitológica de Eva Perón, personagem histórica no romance Santa Evita (1996 de Tomás Eloy Martínez, e ainda, expor quais foram os procedimentos adotados pelo autor que (reconstruíram esse mito. Utiliza-se, como base teórica, Linda Hutcheon (1991 e Fleck (2007 no conceito de metaficção historiográfica, Mircea Eliade (1991 e Martín Cezar Feijó (1984 no que cabe à análise do Mito. Esta breve pesquisa se dará a partir da análise bibliográfica e de forma comparativa entre a história e a escrita ficcional do romance Santa Evita (1996 de Tomás Eloy Martínez, discute-se os elementos utilizados e o caminho percorrido para a (reconstrução do mito Eva Perón na obra citada.

Accounting Education Area Student Evaluation of Motivation and Expectations Çanakkale Onsekiz Mart University Vocational School Due to an Application

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Metin ATMACA

2014-06-01

Full Text Available The aim of our study was to considering these issues Çanakkale Onsekiz Mart University accounting and tax applications, depending on what part of higher vocational schools of higher education students to measure expectations and motivations. Population of the study consists of 807 students in accounting and tax application departments of 7 vocational schools of Çanakkale Onsekiz Mart University. In our study, 723studentswere reached, as a means of data collection questionnaire. In the first part of the survey questions related to demographic variables found to the accounting section of the second part, students’ reasons for choosing, there are judgments to measure their expectations and motivations. According to the results, the motivation to adopt means of accounting education, accounting, education, expectations, reasons for choosing accounting and accounting education is part of the point of view of the factors is a linear correlation.

Protective effect of a phenolic extract containing indoline amides from Portulaca oleracea against cognitive impairment in senescent mice induced by large dose of D-galactose /NaNO2.

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Wang, Peipei; Sun, Hongxiang; Liu, Dianyu; Jiao, Zezhao; Yue, Su; He, Xiuquan; Xia, Wen; Ji, Jianbo; Xiang, Lan

2017-05-05

Portulaca oleracea L. is a potherb and also a widely used traditional Chinese medicine. In accordance with its nickname "longevity vegetable", pharmacological study demonstrated that this plant possessed antioxidant, anti-aging, and cognition-improvement function. Active principles pertaining to these functions of P. oleracea need to be elucidated. The present study evaluated the effect of a phenolic extract (PAAs) from P. oleracea which contained specific antioxidant indoline amides on cognitive impairment in senescent mice. PAAs was prepared through AB-8 macroporous resin column chromatography. Total phenol content was determined using colorimetric method, and contents of indoline amides were determined using HPLC-UV method. Senescent Kunming mice with cognitive dysfunction were established by intraperitoneal injection of D-galactose (D-gal, 1250mg/kg/day) and NaNO 2 (90mg/kg/day) for 8 weeks, L-PAAs (360mg/kg/day), H-PAAs (720mg/kg/day), and nootropic drug piracetam (PA, 400mg/kg/day) as the positive control were orally administered. Spatial learning and memory abilities were evaluated by Morris water maze experiment. Activities of AChE, SOD, CAT, and levels of GSH and MDA in the brain or plasma were measured. Hippocampal morphology was observed by HE staining. Chronic treatment of large dose of D-gal/NaNO 2 significantly reduced lifespan, elevated AChE activity, decreased CAT activity, compensatorily up-regulated SOD activity and GSH level, increased MDA level, induced neuronal damage in hippocampal CA1, CA3 and CA4 regions, and impaired cognitive function. Similar to PA, PAAs prolonged the lifespan and improved spatial memory ability. Moreover, PAAs improved learning ability. H-PAAs significantly reversed compensatory increase in SOD activity to the normal level, elevated serum CAT activity, and reduced MDA levels in brain and plasma, more potent than L-PAAs. Besides these, PAAs evidently inhibited hippocampal neuronal damage. However, it had no effect on

Data mart construction based on semantic annotation of scientific articles: A case study for the prioritization of drug targets.

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Teixeira, Marlon Amaro Coelho; Belloze, Kele Teixeira; Cavalcanti, Maria Cláudia; Silva-Junior, Floriano P

2018-04-01

Semantic text annotation enables the association of semantic information (ontology concepts) to text expressions (terms), which are readable by software agents. In the scientific scenario, this is particularly useful because it reveals a lot of scientific discoveries that are hidden within academic articles. The Biomedical area has more than 300 ontologies, most of them composed of over 500 concepts. These ontologies can be used to annotate scientific papers and thus, facilitate data extraction. However, in the context of a scientific research, a simple keyword-based query using the interface of a digital scientific texts library can return more than a thousand hits. The analysis of such a large set of texts, annotated with such numerous and large ontologies, is not an easy task. Therefore, the main objective of this work is to provide a method that could facilitate this task. This work describes a method called Text and Ontology ETL (TOETL), to build an analytical view over such texts. First, a corpus of selected papers is semantically annotated using distinct ontologies. Then, the annotation data is extracted, organized and aggregated into the dimensional schema of a data mart. Besides the TOETL method, this work illustrates its application through the development of the TaP DM (Target Prioritization data mart). This data mart has focus on the research of gene essentiality, a key concept to be considered when searching for genes showing potential as anti-infective drug targets. This work reveals that the proposed approach is a relevant tool to support decision making in the prioritization of new drug targets, being more efficient than the keyword-based traditional tools. Copyright © 2018 Elsevier B.V. All rights reserved.