• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 6
  • 1
  • 1
  • 1
  • Tagged with
  • 9
  • 4
  • 4
  • 4
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 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.
1

"In vivo" Behavorial Characterization of Anxiolytic Botanicals

Cayer, Christian 06 December 2011 (has links)
This thesis studied three plants traditionally used for treating a variety of anxiety related conditions. The three species were Roseroot, Rhodiola rosea from Nunavik, Cordonsillo, Piper amalago from Belize and “Sin Susto”, Souroubea sympetala from Costa Rica. The main objective of this research project was to investigate effects on behavior of these traditionally used native plants. It was found that the crude ethanol extracts derived from these plants administered intragastrically had measurable anxiolytic effects in male Sprague Dawley rats. Rats treated with extracts of these plants were then tested in several behavioral paradigms: elevated plus maze (EPM), social interaction (SI), conditioned emotional response (CER) and fear potentiated startle FPS. “Sin susto” produced significant anti-anxiety effects in several paradigms. Its active principle, betulinic acid, was significantly active in the EPM and FPS at a dose of 0.5mg/kg. Cordonsillo had strong activity in the SI paradigm and Roseroot in the CER paradigm. The results suggest that traditional use is based on pharmacological activity of the plants.
2

"In vivo" Behavorial Characterization of Anxiolytic Botanicals

Cayer, Christian 06 December 2011 (has links)
This thesis studied three plants traditionally used for treating a variety of anxiety related conditions. The three species were Roseroot, Rhodiola rosea from Nunavik, Cordonsillo, Piper amalago from Belize and “Sin Susto”, Souroubea sympetala from Costa Rica. The main objective of this research project was to investigate effects on behavior of these traditionally used native plants. It was found that the crude ethanol extracts derived from these plants administered intragastrically had measurable anxiolytic effects in male Sprague Dawley rats. Rats treated with extracts of these plants were then tested in several behavioral paradigms: elevated plus maze (EPM), social interaction (SI), conditioned emotional response (CER) and fear potentiated startle FPS. “Sin susto” produced significant anti-anxiety effects in several paradigms. Its active principle, betulinic acid, was significantly active in the EPM and FPS at a dose of 0.5mg/kg. Cordonsillo had strong activity in the SI paradigm and Roseroot in the CER paradigm. The results suggest that traditional use is based on pharmacological activity of the plants.
3

"In vivo" Behavorial Characterization of Anxiolytic Botanicals

Cayer, Christian 06 December 2011 (has links)
This thesis studied three plants traditionally used for treating a variety of anxiety related conditions. The three species were Roseroot, Rhodiola rosea from Nunavik, Cordonsillo, Piper amalago from Belize and “Sin Susto”, Souroubea sympetala from Costa Rica. The main objective of this research project was to investigate effects on behavior of these traditionally used native plants. It was found that the crude ethanol extracts derived from these plants administered intragastrically had measurable anxiolytic effects in male Sprague Dawley rats. Rats treated with extracts of these plants were then tested in several behavioral paradigms: elevated plus maze (EPM), social interaction (SI), conditioned emotional response (CER) and fear potentiated startle FPS. “Sin susto” produced significant anti-anxiety effects in several paradigms. Its active principle, betulinic acid, was significantly active in the EPM and FPS at a dose of 0.5mg/kg. Cordonsillo had strong activity in the SI paradigm and Roseroot in the CER paradigm. The results suggest that traditional use is based on pharmacological activity of the plants.
4

"In vivo" Behavorial Characterization of Anxiolytic Botanicals

Cayer, Christian January 2011 (has links)
This thesis studied three plants traditionally used for treating a variety of anxiety related conditions. The three species were Roseroot, Rhodiola rosea from Nunavik, Cordonsillo, Piper amalago from Belize and “Sin Susto”, Souroubea sympetala from Costa Rica. The main objective of this research project was to investigate effects on behavior of these traditionally used native plants. It was found that the crude ethanol extracts derived from these plants administered intragastrically had measurable anxiolytic effects in male Sprague Dawley rats. Rats treated with extracts of these plants were then tested in several behavioral paradigms: elevated plus maze (EPM), social interaction (SI), conditioned emotional response (CER) and fear potentiated startle FPS. “Sin susto” produced significant anti-anxiety effects in several paradigms. Its active principle, betulinic acid, was significantly active in the EPM and FPS at a dose of 0.5mg/kg. Cordonsillo had strong activity in the SI paradigm and Roseroot in the CER paradigm. The results suggest that traditional use is based on pharmacological activity of the plants.
5

Industry analysis to guide the asset strategy of the human nutrition and health premix business of Company XYZ

Cooke, Jamie S. January 1900 (has links)
Master of Agribusiness / Department of Agricultural Economics / Aleksan Shanoyan / Company XYZ is a global manufacturer of human nutrition & health (HNH) premixes. They operate globally through 14 manufacturing sites. HNH premix North America manages a network of three production facilities plus several warehouses on the east and west coasts of the United States. The purpose of this thesis is to provide insights for informing the asset strategy for the human nutrition and health premix business of Company XYZ focusing on the analysis of competitive forces and market drivers for the herbs and botanicals segment. Specifically the thesis aims to achieve the following three objectives: 1) identify potential supply chain bottlenecks and capacity constraints by mapping out the supply chain and examining the production flow, the installed capacity, and current asset strategy; 2) identify key market drivers and related industry trends by assessing the competitive forces and change forces affecting the industry growth rate; 3) present synthesis of strategic issues and strategy recommendation for asset allocation strategy. The analysis involves examination of the supply chain logistical flows for raw materials used in current production of blends and premixes as well as the supply chain for herbs and botanicals. It also includes the assessment of current production capacity by providing a detailed overview of production facilities, blending equipment, production lines and geographical coverage. The aim is to assess the existing procurement capabilities and to identify potential bottlenecks that may constrain the supply chain flow as the demand for HNH premixes grow. The industry analysis was undertaken to better understand the outlook for the premix industry and the factors driving and impeding the growth in the herbs and botanicals sector. The current premix competitive environment was evaluated for the food & beverage as well as dietary supplement sectors. In addition to calculating the industry’s concentration and Herfindahl-Hirschman index (HHI), Porter’s Five Forces framework was used to analyze the intensity of competitive forces in the industry and the attractiveness of the HNH premix industry as the demand for premixes in that segment continues its growth trajectory. The qualitative assessment of the industry structure and competitive forces was conducted using data from interviews with experts designed and conducted in the fall of 2016. The results indicate that the current asset footprint, procurement base, and supply chain capabilities of Company XYZ will allow it to position itself as a leading supplier for the growing HNH nutrition segment. In addition, the results indicate that given the high-value low-volume nature of herbs and botanical blends there are no significant strategic advantages to be gained from changes in geographic asset footprint. However, these results do not account for actual production costs and overheads at each location since the analysis did not include a financial assessment. The results from the analysis of socio-economic trends illustrate that moving forward the companies in the dietary supplement sector focused on applications that support brain and cognitive functioning will account for the largest increase in demand for herbs and botanical blends. It was recognized that Company XYZ currently finds itself in a “red ocean” where it competes over market share in a slow-growth and highly competitive industry. Two potential strategies that will help transition a company into a “blue ocean” – a high growth and low-rivalry environment involve: i) taking over customers’ in-house blending activities by offering a better value proposition through Company XYZ’s economies of scale, superior quality standards, and blending capabilities; and ii) enhancing diversification into the herbs and botanicals segment of the HNH premix industry focusing on brain health applications.
6

Determining the practices and beliefs regarding nutritional supplement use in an urban adult population attending a medical centre in Rondebosch East, Cape Town

Frost, Anna 23 July 2015 (has links)
Background Empirical research on how and why nutritional supplements (including vitamin/mineral supplements and herbal supplements) are being taken by middle-income populations in South Africa is lacking. This study quantifies the types of nutritional supplements being taken. It unpacks beliefs regarding benefits and risks. This information is useful for healthcare practitioners in similar settings as it could affect their practice of history taking and alert practitioners to the need to know more about nutritional supplement benefits and risks. The information could be used to influence policy regarding advertising and labelling of nutritional supplements. Method The study was a cross-sectional survey. An anonymous self-completed structured questionnaire was completed by 123 participants attending a medical centre during the data collection period. Face-to-face semi-structured interviews were conducted on 16 participants to gather qualitative information. Results Nutritional supplements were widely taken in this questionnaire sample (59%). Consumption was not related to age, language, ethnic group, education and smoking, but nutritional supplements were more commonly used by women and higher income groups. Women who felt they had fair/poor health, women with chronic medical conditions, especially those with depression or women on chronic prescription medication were more likely to take nutritional supplements than those without these characteristics. Wellness, treating tiredness and short-term disease prevention were the most common reasons for taking the supplements, although research proving these benefits is lacking. Chronic disease prevention was an uncommon reason for consumption. Participants were mostly unaware of possible drug interactions and side-effects and therefore felt it unnecessary to inform their practitioner of consumption habits. Conclusion Healthcare professionals should include a nutritional supplement question in their routine history taking, especially when prescribing chronic medication and in the presence of chronic conditions. They should be knowledgeable regarding efficacy, safety, possible side-effects and drug interactions of commonly consumed nutritional supplements in order to advise patients appropriately. Further empirical research is needed into proven benefits of nutritional supplements.
7

Desenvolvimento floral e expressão sexual em espécies de Ficus L. (Moraceae) / Floral development and sex expression in species of Ficus L. (Moraceae)

Basso-Alves, João Paulo, 1985- 18 August 2018 (has links)
Orientador: Simone de Pádua Teixeira / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia / Made available in DSpace on 2018-08-18T14:54:49Z (GMT). No. of bitstreams: 1 Basso-Alves_JoaoPaulo_M.pdf: 5360673 bytes, checksum: dcedc4cbe8765f92aca350ab0d6cfac5 (MD5) Previous issue date: 2011 / Resumo: A ausência de um dos verticilos reprodutivos em algumas flores pode decorrer da perda ou supressão de primórdios, o que pode ser elucidado por meio de estudos morfológicos do desenvolvimento floral. Ficus L. é um ótimo modelo para estes estudos, uma vez que possui representantes com sistemas sexuais diversos. Assim, o presente trabalho teve por objetivo comparar a morfologia da flor em desenvolvimento em Ficus citrifolia (monóica), F. hispida (ginodióica), F. racemosa (monóica secundária) e F. religiosa (monóica), a fim compreender as vias ontogenéticas que promovem a condição flor imperfeita. Para tal, sicônios em diversos estádios de desenvolvimento foram coletados, fixados em FAA 50, dissecados em lupa e preparados para observações de superfície em microscopia eletrônica de varredura (MEV) e histológicas em microscopia de luz. A organização dos meristemas florais e das flores no interior do sicônio é muito congesta na maioria das espécies estudadas, sendo menos acentuada em F. hispida (ginodióica). Diferenças no tempo de emergência dos meristemas e de alongamento do pedicelo em flores carpeladas foram observadas nas espécies monóicas (F. citrifolia, F. racemosa e F. religiosa) e parecem ser cruciais para a formação da heterostilia incompleta, típica de espécies monóicas deste gênero. As flores carpeladas de todas as espécies exibiram formação de sinestigma ao final do desenvolvimento (exceto aquelas do sicônio produtores de galha em F. hispida). Nossos dados, comparados aos de literatura, indicam que a ausência de estames nas flores carpeladas, tanto em espécies monóicas quanto em ginodióicas de Ficus, deve-se a um processo de perda, ou seja, os primórdios de estames não são iniciados no meristema floral. As flores estaminadas de F. hispida apresentaram supressão carpelar. A perda de primórdios estaminais é difundida no gênero e em Moraceae; já o carpelo pode ser perdido ou suprimido nestes grupos. Aspectos do desenvolvimento floral também são discutidos em relação à reprodução e biologia floral de Ficus / Abstract: The absence of reproductive organs in some flowers may ontogenetically arise by organ loss or suppression. Ficus L. is an interesting model for floral developmental studies, due to its diversity in sexual systems. The aim of this study was to compare the morphology of the floral development in Ficus citrifolia (monoecious), F. hispida (gynodioecious), F. racemosa (secondary monoecious) and F. religiosa (monoecious), to help understanding the ontogenetic pathways that promote the condition "imperfect flower". Thus, figs at various developmental stages were collected, fixed in FAA 50 and prepared for surface (scanning electron microscopy) and histological observations (light microscopy). The organization of the floral meristem and flowers inside the syconium is quite compressed, although F. hispida (gynodioecious) exhibits a less compressed floral arrangement inside the syconium. Variation in meristem inception time and pedicel elongation were observed in carpellate flowers of monoecious species (F. citrifolia, F. racemosa and F. religiosa) and should be crucial for establishment of incomplete heterostyly. The carpellate flowers of all species showed a sinstigma in the later developmental stages (except the gall-producing syconium in F. hispida). The staminate flowers of F. hispida showed carpel suppression. Our data, compared with those in the literature, indicate that the absence of stamens in carpellate flowers is due to loss of stamen primordium, both in gynodioecious and monoecious species. This condition is present in the genus and in Moraceae as a whole, while the carpel primordium may be lost or suppressed in this group. Aspects of floral development observed in Ficus are discussed in relation to their systematic and reproductive biology / Mestrado / Biologia Vegetal / Mestre em Biologia Vegetal
8

Characterization of Botanicals by Nuclear Magnetic Resonance and Mass Spectrometric Chemical Profiling

Wang, Xinyi 13 July 2018 (has links)
No description available.
9

OPTIMIZING THE RELEASE OF BOTANICAL INGREDIENTS FROM ANTIPERSPIRANTS/DEODORANTS

WILSON, HEATHER-ANNE MARIE January 2003 (has links)
No description available.

Page generated in 0.0576 seconds