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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

USE OF HERBICIDES TO CONTROL WEEDS IN PLANTAGO.

Brown, William Barry. January 1983 (has links)
No description available.
12

Qualidade da luz na germinação de sementes de Tanchagem (Plantago major L.) em diferentes períodos de armazenamento / Quality of light on the germination of seeds of Tanchagem (Plantago major L.) in different periods of storage

Souza, Brígida Savana de 13 May 2008 (has links)
Made available in DSpace on 2016-08-12T19:15:26Z (GMT). No. of bitstreams: 1 BRIGIDA SAVANA DE SOUZA.pdf: 257359 bytes, checksum: 2a2aee88502ef28cb6cfd0339b84e0f3 (MD5) Previous issue date: 2008-05-13 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The tanchagem (Plantago major L.) originated in Europe, but adapted themselves very well in Brazil and can be found in soil of almost the entire country. In Brazil is considered diuretic, anti-diarrheal, expectorante, hemostasis and healing, being employed against upper respiratory tract infections, chronic bronchitis and as an aid in the treatment of peptic ulcers. For national conditions, few studies have been conducted so far, with seeds of medicinal species. It appears that these species light is needed for germination of seeds and development of many plants. Another factor that contributes to the success of germination is the seed storage that is a step which should seek to reduce the maximum speed and intensity of the process of deterioration. The work was done in the laboratory for analysis of Seeds of UFERSA to assess the influence of the quality of light in the germination of seeds of tanchagem (Plantago major L.) in different periods of storage. The experimental design was a completely randomized, factorial 4 x 4, representing the first factor the quality of light (white light, red light, red light and extreme lack of light), and the second the period of storage (zero, two , Four six months), with four repetitions of 50 seeds. The characteristics evaluated were the first count, and the percentage of germination rate of speed germination. In this experiment there was significant interaction between the types of light and the periods of storage for all the characteristics analyzed. The seeds of tanchagem showed low germination. The absence of light influences in the first count (PC), percentage of germination (PG) index and speed of germination (IVG), seeds of this species. The red and white light / A tanchagem (Plantago major L.) é originária da Europa, porém adaptou-se muito bem no Brasil e pode ser encontrada em solos de quase todo o país. No Brasil é considerada diurética, anti-diarréica, expectorante, hemostática e cicatrizante, sendo empregada contra infecções das vias respiratórias superiores, bronquite crônica e como auxiliar no tratamento de úlceras pépticas. Para as condições nacionais, poucos estudos foram realizados até o momento, com sementes de espécies medicinais. Observa-se que nessas espécies a luz é necessária para germinação das sementes e desenvolvimento de muitas plantas. Outro fator que contribui para o sucesso da germinação é o armazenamento das sementes que constitui uma etapa na qual se deve procurar reduzir ao máximo a velocidade e a intensidade do processo de deterioração. O trabalho foi realizado no laboratório de Análise de Sementes da UFERSA para avaliar a influência da qualidade da luz na germinação de sementes de tanchagem (Plantago major L.) em diferentes períodos de armazenamento. O delineamento experimental usado foi o inteiramente casualizado, em esquema fatorial 4 x 4, correspondendo o primeiro fator a qualidade da luz (luz branca, luz vermelha , luz vermelha extrema e ausência de luz); e o segundo o período de armazenamento (zero, dois, quatro e seis meses), com quatro repetições de 50 sementes. As características avaliadas foram a primeira contagem, porcentagem de germinação e o índice de velocidade de germinação. Neste experimento observou-se interação significativa entre os tipos de luminosidade e os períodos de armazenamento para todas as características analisadas. As sementes de tanchagem apresentaram baixa germinabilidade. A ausência de luz influencia negativamente na primeira contagem (PC), porcentagem de germinação (PG) e índice de velocidade de germinação (IVG), de sementes desta espécie. A luz branca e vermelha proporcionam plântulas mais vigorosas. A viabilidade das sementes de tanchagem, decresce em função do tempo de armazenamento
13

Qualidade da luz na germinação de sementes de Tanchagem (Plantago major L.) em diferentes períodos de armazenamento / Quality of light on the germination of seeds of Tanchagem (Plantago major L.) in different periods of storage

Souza, Brígida Savana de 13 May 2008 (has links)
Made available in DSpace on 2016-08-12T19:18:46Z (GMT). No. of bitstreams: 1 BRIGIDA SAVANA DE SOUZA.pdf: 257359 bytes, checksum: 2a2aee88502ef28cb6cfd0339b84e0f3 (MD5) Previous issue date: 2008-05-13 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The tanchagem (Plantago major L.) originated in Europe, but adapted themselves very well in Brazil and can be found in soil of almost the entire country. In Brazil is considered diuretic, anti-diarrheal, expectorante, hemostasis and healing, being employed against upper respiratory tract infections, chronic bronchitis and as an aid in the treatment of peptic ulcers. For national conditions, few studies have been conducted so far, with seeds of medicinal species. It appears that these species light is needed for germination of seeds and development of many plants. Another factor that contributes to the success of germination is the seed storage that is a step which should seek to reduce the maximum speed and intensity of the process of deterioration. The work was done in the laboratory for analysis of Seeds of UFERSA to assess the influence of the quality of light in the germination of seeds of tanchagem (Plantago major L.) in different periods of storage. The experimental design was a completely randomized, factorial 4 x 4, representing the first factor the quality of light (white light, red light, red light and extreme lack of light), and the second the period of storage (zero, two , Four six months), with four repetitions of 50 seeds. The characteristics evaluated were the first count, and the percentage of germination rate of speed germination. In this experiment there was significant interaction between the types of light and the periods of storage for all the characteristics analyzed. The seeds of tanchagem showed low germination. The absence of light influences in the first count (PC), percentage of germination (PG) index and speed of germination (IVG), seeds of this species. The red and white light / A tanchagem (Plantago major L.) é originária da Europa, porém adaptou-se muito bem no Brasil e pode ser encontrada em solos de quase todo o país. No Brasil é considerada diurética, anti-diarréica, expectorante, hemostática e cicatrizante, sendo empregada contra infecções das vias respiratórias superiores, bronquite crônica e como auxiliar no tratamento de úlceras pépticas. Para as condições nacionais, poucos estudos foram realizados até o momento, com sementes de espécies medicinais. Observa-se que nessas espécies a luz é necessária para germinação das sementes e desenvolvimento de muitas plantas. Outro fator que contribui para o sucesso da germinação é o armazenamento das sementes que constitui uma etapa na qual se deve procurar reduzir ao máximo a velocidade e a intensidade do processo de deterioração. O trabalho foi realizado no laboratório de Análise de Sementes da UFERSA para avaliar a influência da qualidade da luz na germinação de sementes de tanchagem (Plantago major L.) em diferentes períodos de armazenamento. O delineamento experimental usado foi o inteiramente casualizado, em esquema fatorial 4 x 4, correspondendo o primeiro fator a qualidade da luz (luz branca, luz vermelha , luz vermelha extrema e ausência de luz); e o segundo o período de armazenamento (zero, dois, quatro e seis meses), com quatro repetições de 50 sementes. As características avaliadas foram a primeira contagem, porcentagem de germinação e o índice de velocidade de germinação. Neste experimento observou-se interação significativa entre os tipos de luminosidade e os períodos de armazenamento para todas as características analisadas. As sementes de tanchagem apresentaram baixa germinabilidade. A ausência de luz influencia negativamente na primeira contagem (PC), porcentagem de germinação (PG) e índice de velocidade de germinação (IVG), de sementes desta espécie. A luz branca e vermelha proporcionam plântulas mais vigorosas. A viabilidade das sementes de tanchagem, decresce em função do tempo de armazenamento
14

Fitohemijski skrining i procena antioksidantnog i antiinflamatornog potencijala sekundarnih biomolekula u vrstama roda Plantago L. / Phytochemical screening and evaluation of antioxidant and anti-inflammatory potential of secondary metabolites of Plantago L. species

Beara (Krstić) Ivana 09 July 2010 (has links)
<p>Karakterizacija metanolnih ekstrakata jedanaest vrsta samoniklih bokvica (rod<em> Plantago L.</em>) obuhvatala je fitohemijski skrining i ispitivanje antioksidantne i antiinflamatorne aktivnosti. Primenom LC-MS/MS tehnike odreĊen je sadržaj odabranih sekundarnih biomolekula. Antioksidantna aktivnosti ekstrakata (sposobnost neutralizacije slobodnih radikala, redukcioni potencijal i inhibicija lipidne peroksidacije) ispitana je primenom spektrofotometrijskih metoda. U cilju odreĊivanja antiinflamatornog potencijala, razvijena je<em> in vitro </em>metoda za praćenje aktivnosti trombocitne ciklooksigenaze-1 i 12-lipoksigenaze. Svi ispitani ekstrakti pokazali su znaĉajnu biolo&scaron;ku aktivnost.</p> / <p>Characterization of methanol extracts of eleven<em> Plantago L.</em> species included phytochemical screening and evaluation of antioxidant and anti-inflammatory activity. The content of several secondary metabolites was determined by LC-MS/MS technique. Antioxidant activity of extracts (radical scavenger capacity, reduction potential and inhibition of lipid peroxidation) was examined by spectrophotometric methods. With the intention to evaluate anti-inflammatory activity, an<em> in vitro method</em> was developed to measure activity of platelet cyclooxygenase-1 and 12-lipoxygenase. All examined extracts showed noticeable biological activity.</p>
15

Estudio comparativo de la acción gastroprotectora del Plantago major y el omeprazol sobre la gastritis inducida por la administración de ketorolaco en dosis usuales en la terapia analgésica-antiinflamatoria estomatológica

Chirri Trevejos, William Henry January 2013 (has links)
En la práctica odontológica es necesario el hacer usos de diversos fármacos, como son antibióticos, antiinflamatorios no esteroideos (AINES), corticoides, etc. Ya sea en terapia pre o posoperatoria dentro de este grupo de fármacos, los AINES son los más utilizados, esto debido a sus propiedades analgésicas y antiinflamatorias principalmente. Estos fármacos, de acuerdo al tiempo en el cual son consumidos, producen diferentes afectos adversos; algunos son gastrolesivos, hepatotóxicos o nefrotóxicos, pero principalmente la gastrolesividad es el efecto adverso predominante de estos fármacos, que puede presentarse como gastritis y posteriormente úlcera. Existen muchos reportes de casos de gastritis y úlcera gástrica causada por el uso indiscriminado de los AINES. Por esto, es necesario que el prescriptor tenga conocimiento de los efectos adversos de cada uno de los fármacos que receta y además disponga de alguna alternativa con el fin de eliminar o disminuir enormemente los efectos adversos que estos producen. Se sabe que el ketorolaco es uno de los principales AINES prescritos para paliar el dolor y la inflamación de los pacientes sometidos a una intervención quirúrgica estomatológica; pero en muchas investigaciones se afirma que el ketorolaco tiene como uno de sus efectos adversos principales la gastrolesividad, lo cual es perjudicial para el paciente tratado con un esquema terapéutico basado en varios días de administración del fármaco; pero aun así, en muchos casos es necesario la administración de éste por un tiempo prolongado. En odontología los esquemas terapéuticos postoperatorios muchas veces están dentro de los 3 a 5 días postoperatorios, con la administración de estos fármacos 2 ó 3 veces al día, lo cual puede desencadenar en el paciente algún tipo de lesión gástrica ya sea de manera superficial o profunda. Debido a esto se plantea una alternativa natural para eliminar el efecto adverso gastrolesivo de los AINES. Se plantea en este trabajo, la actividad gastroprotectora del extracto alcohólico de Plantago major comparado con la actividad del Omeprazol, el cual es un gastroprotector por excelencia. Existen diversas investigaciones que le atribuyen ciertos potenciales gastroprotectores a esta planta que además se puede encontrar con facilidad en el territorio peruano.
16

Informovanost studentů vybraných škol v oblasti vybraných druhů nutraceutik / Selected schools' students' awareness of selected types of nutraceuticals

Homolková, Zuzana January 2018 (has links)
The main topic of this work is food supplements, their legislation and other theory connected with them, the main focus is on plant nutraceuticals, of which are chosen food supplements marketed to support immunity system - echinacea, sea buckthorn and oyster mushroom, food supplements to support psyche - St. John's wort, ginkgo and valerian and dietary supplements to support body fitness - tribulus, garcinia and psyllium. Subsequently, the topic focuses on the marketing of nutraceuticals, its modern ways and the possibilities of increasing the students' awareness in this field through the principles of media education. In the practical part, 112 students aged 15-19 are presented with a lecture presenting the topic and inviting students to raise their interest in the subject. The feedback of the lecture is provided by a questionnaire whose questions correspond to the hypotheses set by the author. KEYWORDS nutraceuticals, media education, marketing, Echinacea, Garcinia, Pleurotus, Hippophae, Gingko, Plantago, Hypericum, Valeriana, Tribulus
17

Investigation Of Antioxidant And Antimicrobial Effects Of Plantago Major Leaves

Kaya, Ozge 01 September 2011 (has links) (PDF)
This study was designed to investigate Plantago major leaves, which is widely used in ethnobotanical uses in Turkey as is the case in all over the world, for their antioxidant capacities and antimicrobial effect on two gram-positive and two gramnegative bacteria. Extracts of P. major leaves prepared in the methanol and fraction samples were collected in solvents in increasing polarity, from non-polar to polar, to separate bioactive compound in crude extract. Antioxidant capacities of the crude extracts and fractions were examined by radical scavenging methods, namely 2,2-azinobis(3- ethylbenzothiazoline-6-sulfonic acid) ABTS and 1,1-diphenyl-2-picryl-hydrazyl (DPPH) / as well, total phenolic and total flavonoid contents were determined. Furthermore, antimicrobial activities of crude extract and fractions were calculated in terms of minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) methods together with disc diffusion method. v Among the investigated samples, ethyl acetate phase had the highest radical scavenging capacity with the ABTS value of 2130.4&plusmn / 9.845 &mu / mol equivalents of trolox/ g of ethyl acetate fraction DW, and with EC50 value of 0.011&plusmn / 0.001 mg/mL / further, the highest phenolic content was found in ethyl acetate phase with values of 0.452 GAE mg/mg of ethyl acetate fraction DW and 0.434&plusmn / 0.0017 mg catechin equivalent in per mg of ethyl acetate fraction DW. In general, it was found that the crude extract and aqueous phase of Plantago major had a weak antimicrobial effect on S. aureus, P.mirabilis, S.pyogenes and E. coli, along with the highest bacteriostatic and bactericidal upshot on selected bacterial populations in ethyl acetate fraction.
18

An examination of carbon flow in a Bay of Fundy salt marsh

Connor, Richard, 1969- January 1995 (has links)
This study examines carbon flow in the Dipper Harbour salt marsh, a macrotidal system located on the north-west coast of the Bay of Fundy, New Brunswick. The vegetated marsh surface is composed of three major zones; the Spartina alterniflora-dominated low marsh, the Plantago maritima-dominated Middle marsh, and the Spartina patens-dominated high marsh. The total net primary production (NPP) of these dominant macrophytes is 860, 300 and 650 g C m$ sp{-2}$ yr$ sp{-1}$ respectively. In all plant zones, 66% of the NPP occurs in the belowground fraction. / Empirical measurements of organic matter burial indicate that the marsh sediment acts as a carbon sink, accumulating between 75 and 105 g C m$ sp{-2}$ yr$ sp{-1}$. The tidal export of aboveground plant biomass in the form of particulate organic matter accounts for a net loss of carbon ranging from 65 to 170 g C m$ sp{-2}$ yr$ sp{-1}$. An experiment examining the exchange of dissolved organic carbon (DOC) suggest a net annual export of roughly 500 g C m$ sp{-2}$ yr$ sp{-1}$. The forementioned fluxes are combined with estimates of surface gas exchange and algal productivity in order to construct a carbon budget. The budget predicts a DOC export term of 365 g C m$ sp{-2}$ yr$ sp{-1}$, which is of the same order of magnitude as that obtained from the empirical DOC data. / The results of this study show that the Plantago zone plays a significant role in the circulation of carbon in the Dipper Harbour salt marsh. This suggests that the patterns of carbon circulation in northern marshes may differ considerably from those in marshes further south where no distinct Plantago zone has been reported.
19

Bioassay development for identification of cyclooxygenase-2 inhibitors of natural origin /

Ringbom, Therese. January 2002 (has links)
Diss. (sammanfattning) Uppsala : Univ., 2002. / Härtill 4 uppsatser.
20

Atividade biológica de gel dentifrício e enxagüatório bucal contendo extratos vegetais

Cordeiro, Cynthia Helena Gontijo [UNESP] 06 May 2005 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:23:33Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-05-06Bitstream added on 2014-06-13T19:09:25Z : No. of bitstreams: 1 cordeiro_chg_me_arafcf.pdf: 668360 bytes, checksum: 6006843241d7fb47bcd17a5594004e3c (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Universidade Estadual Paulista (UNESP) / A utilização de produtos naturais na medicina popular é milenar e persiste até os dias atuais. Sua abrangência é vasta e engloba fins variados, inclusive em relação à saúde bucal. O controle do biofilme bacteriano dentro das diversas especialidades odontológicas é de grande importância, pois aponta para a prevenção de várias afecções bucais. Quando a remoção mecânica do biofilme é deficiente, podem ocorrer lesões de tecido duro (cáries) e/ou mole (doenças periodontais). A eficácia de plantas medicinais, tanto em dentifrícios como em enxagüatórios bucais, tem sido investigada. Os resultados têm sugerido que os componentes de origem vegetal podem ser empregados como apoio à terapia das doenças periodontais e como profilaxia de rotina. Este trabalho teve como objetivos avaliar a ação biológica de formulações para higiene bucal, contendo, em associação, extratos hidroalcoólicos das espécies vegetais Nasturtium officinale (agrião), Rosmarinus officinalis (alecrim), Tabebuia impetiginosa (ipê roxo), Achillea millefolium (mil-folhas) e Plantago major (tanchagem). Trabalhos anteriores sugerem possível efeito antiinflamatório e alteração da qualidade do biofilme dento-bacteriano, devido as substâncias ativas desses vegetais. Após os estudos de pré-formulação e obtenção do gel dentifrício e do enxagüatório bucal, foram realizadas avaliações da atividade antibacteriana (frente à Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Enterococcus faecalis e Pseudomonas aeruginosa), atividade antiinflamatória e imunológica, para os extratos vegetais e para as formulações. E foram ainda realizados estudos clínicos iniciais, considerando-se os parâmetros odontológicos para a avaliação do Índice de placa, Índice Gengival, Recessão Gengival e... . / The use of natural resources in popular medicine is a millenary practice and it persists until nowadays. This habit is embracing and wide and it conglomerates multiple purposes, included those related to oral health. It’s very important to control bacterial film in many odontologic specialties, because this control helps to prevent several oral diseases. When the mechanical removal of the bacterial film is inefficient, there can occur hard tissue lesions (carious lesions) and/or soft tissue lesions (periodontal diseases) The effectiveness of medicinal herbs in dentifrices, as well as in mouthwashs have been investigated. The results have suggested that the herbs components can be utilized as a support in the periodontal diseases therapies and in the routine prophylaxis. It was the purpose of the present study to evaluate the biological action of various formulations to bucal hygiene, containing, in association, hidroalcoholic extracts from the following species: Nasturtium officinale, Rosmarinus officinalis, Tabebuia impetiginosa, Achillea millefolium and Plantago major. Previous works suggested that there are possible anti-inflammatory effects and an alteration of the bacterial dental film quality, due to the active substances of these herbs. After studying a previous formulation and obtaining the dentifrice and the mouthrinse, it was evaluated the bacterial activity (related to Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Enterococcus faecalis and Pseudomonas aeruginosa), the antiinflammatory and the immunological activities, for the herbs extracts and for the formulations... (Complete abstract, click electronic address below).

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