1,721,062 research outputs found
Traditional food plants in Paruro province, Peru, as a biodiversity resource with a material and immaterial value
Full text linkUntil now, the survival of Andean crops has been due to the existence of numerous local communities which, by preserving their traditions as well as cultivating and using these species, have managed to prevent them from being lost. For these reasons, our goal is the research on the plants used as food in Andean tradition of Paruro province in Peru. All information was gathered through consented semistructured interviews (ethnobotanical questionnaire) with people who still use traditional food plants. We recorded the use of 115 food species belonging to
55 families, mainly Asteraceae, Chenopodiaceae, Amaranthaceae, Cactaceae, Fabaceae. Several plants have been reported in literature because of nutritional or isolated components; for others no bibliographic data are available. Parts used are mainly leaves, in preparation of salads or for soups; fruits generally are used fresh. Tubers and bulbs have a great importance in the diet. A relatively high number of species are used as condiment and flavouring agents. Data recovered can be regarded
as a biodiversity resource with a material and immaterial value
Chemistry, antioxidant, antibacterial and antifungal activities of volatile oils and thair components
No full textChemical Composition and Biological Activities of the Essential Oil from Calamintha nepeta Plants from the Wild in Southern Italy
No full textThe chemical composition of the essential oil from aerial parts of Calamintha nepeta (L.) Savi, collected in the Campania Region, was obtained by hydrodistillation and analyzed by GC and GC-MS. In all, 42 compounds were identified. The oil was characterized by a prevalence of the sesquiterpenic fraction (80.8%). The main components were 1,10-di-epi-cubenol (18.5%), allo-aromadendrene epoxide (11.4%) and cadalene (5.7%). The essential oil was evaluated for its in vitro potential phytotoxic activity against germination and initial radical growth of Raphanus sativus L., Lepidium sativum L., Sinapis arvensis L., Triticum durum L. and Phalaris canariensis L. seeds. The essential oil showed no antioxidant activit
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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