1,720,977 research outputs found
Palm worm (coleoptera, Curculionidae: Rhynchophorus palmarum) Traditional Food. Examples from Alto Orinoco, Venezuela
No full textCurrent knowledge about the so-called palm worms, weevil beetles, and
Curculionidae widely used as food in the Amazon is summarized. The Indians
gather the palm worms from damaged or fallen palm stems and eat them raw or
roasted. We analyzed the nutrient composition of the palm worm and found
that it is an excellent source of protein, fat, vitamins A and E, and minerals.
Development of a local, controlled, small-scale palm worm production system
implemented by the Indians in the Amazonas is described. Larvae are bred using
wild palm materials and traditional Indian plants. Larval survival and density
in each palm substrate were analyzed together with their nutrient composition.
These data were compared with the mother palms cucurito (Maximiliana maripa),
seje (Jessenia bataua), and moriche (Mauritia flexuosa). Finally, the palatability of
the palm worm to non-Amerindian tourists is assessed. The nutrient composition
of the palm worm, the simplicity of a more controlled local production system,
and the acceptability of the palm worm to tourists make this nonconventional resource promising, both as a nutritional food and as a source of cash income for
the Indians
Housekricket Smallscale Farming
No full textThe potential nutritional value of insects in general and the common house
cricket, Acheta domesticus, in particular in human diets has long been recognized.
In addition to providing a rich source of high quality proteins for human consumption,
crickets and other related insects such as grasshoppers and locusts
offer several other advantages as human food sources: they have a short life
span, produce numerous offspring, are amenable to human cultivation, and can
flourish under a wide range of environmental conditions. The main aims of this
study were two: compare the yield of crickets raised on four different diets, and
determine the amino acid, fatty acid, and mineral and trace element content of
crickets grown under the best of these diets. The four diets were: aromatic-arboreal
(AAD), dairy cow diet (DCD), DCD supplemented with yeast, and human
refuse diet (HRD). The greatest yield (0.45 g per 10 g of feed) and highest survival
(47.5%) of A. domesticus was achieved with HRD when grown for 9 weeks
in 24 hours daylight. The protein content of crickets raised on all four diets ranged
from 56.2 to 60.0% dry weight, and in all cases the essential amino acid score of
the proteins approximated or exceeded the World Health Organization protein
standard. The crickets contained 63–122 mg fatty acid per g dry weight, most of
which was accounted for by palmitic acid, oleic acid, and the two fatty acids
essential for humans, namely linoleic acid and a-linolenic acid. Crickets grown
on any one of the diets contained significant quantities of the following minerals
or trace elements: calcium (366–480 μg per g dry weight), copper (8.5–9.2 μg
per g), iron (16.2–26.7 μg per g), and magnesium (255–306 μg per g). These data support the contention that crickets contain quantities of many nutrients that
are essential to humans and show that the insect represents a commercially feasible
source of food for human populations
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
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
- …
