69,889 research outputs found
[Correspondence Between E. C. Matis and Barbara Jordan - July 1974]
No full textCorrespondence Between E. C. Matis and Barbara Jordan discussing food supplement regulations made by the Food and Drug Administration (FDA) and a bill that would counter those regulations. Matis requests that Jordan support the bill and Jordan discusses a similar bill that she introduced
A dádiva, a sovinice e a beleza: economia da Cultura Matis, Vale do Javari, Amazônia
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas. Programa de Pós-Graduação em Antropologia SocialEssa tese trata sobre a economia da cultura dos Matis, um povo indígena amazônico, sua circulação de conhecimentos com o exterior e suas relações com estrangeiros de diferentes matizes. Alguns desses estrangeiros são nëix (animais); outros, tsussin (forças vitais, seres ou potências desencorporadas); outros, nawa (povos indígenas vizinhos, brasileiros ou gringos). Dentre esses últimos, relações econômicas se dão especialmente com jornalistas/ documentaristas, turistas e pesquisadores. Transações diversas são etnografadas em ritos, mitos, práticas xamânicas, filmagens, programas turísticos, comércio de objetos e em outras relações cosmopolitanas. Um ponto fundamental estudado é a afirmação dos Matis de que querem ser um povo numeroso, ser um povo grande. A economia de pessoas está entretecida com as economias da cultura. Os Matis querem desses povos estrangeiros (animais, tsussin, gringos) tecnologias (num sentido amplo) para conseguir crescer, ter corpos mais duros e fortes, serem mais e mais poderosos, mais belos. Os estrangeiros aparecem como os principais outros de quem se quer adquirir poder, tecnologias, estéticas e através de quem se pode expandir pelo cosmos. A tese trata de temas clássicos da etnologia amazônica como economia de pessoas (corpos), com foco em sovinices e circulações de conhecimentos e coisas (transações, aquisições ou roubos de mitos, cantos, poderes xamânicos, farmacopéia, pedaços de corpos, motores e outros bens). Trato de economia, portanto, em uma compreensão generosa, qualquer definição clássica etimológica de #economia# como cuidado, manejo ou organização da casa (do grego "oikos" e "nomia") será alargada aquiThis thesis is about the economy of culture of the Matis - an Amazonian indigenous people, its circulation of knowledge with the outside and its relations with different foreigners. Some of those foreigners are nëix (animals); some, tsussin (vital forces, desincorporated beings or potencies); others are nawa neighbouring indigenous peoples, Brazilians and gringos. Among these last ones, economic relations take place specially with journalists/film makers, tourists and researchers. Several transactions are ethnographed in rites, myths, shamanic practices, filming, touristic programs, objects# trading and in other cosmopolitan relations. A fundamental point of the present study is the Matis# affirmation that they want to be a numerous people, to be bigger. The economy of people is interwoven with the economy of culture. The Matis want from these foreign peoples (animals, tsussin, gringos) technologies (in a broad sense) so that they can grow, to have bodies that are harder and stronger, to be more and more powerful, more beautiful. The foreigners appear as the #special others# from whom to acquire power, technologies, aesthetics and through whom it is possible to expand throughout the cosmos. The thesis treats classic themes in Amazonian ethnology such as economy of people (bodies), with focus in the stinginess and the circulation of knowledge and things (transactions, acquisitions or robberies of myths, songs, shamanic powers, pharmacopoeia, body parts, engines and other stuff). So, I treat economy in a generous comprehension, any classic etymologic definition of #economy# as care, management or organization of the house (from the greek "oikos" and "nomia") will be broaden her
Dinâmica de espécies na agricultura indígena do Vale do Javari - AM: o caso dos Matis e Marubo
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias. Programa de Pós-Graduação em Agroecossistemas.A visão depreciativa em relação à população rural aprofundou o descaso com muitos sistemas de conhecimento nativo, cujo conteúdo era expresso de forma discursiva e simbólica. Poucos trabalhos foram realizados e ainda pouco se conhece sobre os sistemas tradicionais de produção. Os estudos realizados têm demonstrado a diversidade e complexidade dos padrões de cultivo, dos sistemas de manejo e conservação de solos, usos da água, reciclagem de nutrientes, controle da sucessão e proteção das culturas, além da incorporação de grande número de cultivares, importantes para o desenvolvimento de programas de melhoramento genético. A agricultura itinerante constitui a forma tradicional de uso da terra mais praticada na América Latina. Alternando-se períodos de cultivo e regeneração da floresta, é possível manejar a fertilidade do solo e controlar pragas e doenças, estabelecendo policultivos e sistemas agroflorestais com alto grau de sustentabilidade. Nos sistemas tradicionais indígenas da Amazônia, os produtos de maior importância são o milho, a mandioca e a banana, representando as fontes básicas de carboidratos. Com a conquista européia da Amazônia, os cacicados indígenas estabelecidos na várzea e que mantinham forte o cultivo de milho, foram destruídos e os grupos indígenas restantes tiveram que retornar ao cultivo de mandioca, que se mantém como alimento principal para a maior parte das populações nativas até os dias atuais. Em diversos grupos indígenas, no entanto, a banana vem se tornando o cultivo mais importante. É o que vem acontecendo com os índios Matis e Marubo, grupos Pano do Vale do Javari, no Amazonas. Esses grupos praticam uma agricultura de derrubada e queima, conformando sistemas agroflorestais. Constitui o objetivo deste trabalho estudar as razões e conseqüências da substituição de espécies no repertório dos cultivos Matis e Marubo, no contexto atual, cujo fato mais marcante está nas substituições da mandioca e milho pela banana. Utilizando-se metodologias qualitativas em um longo período de convívio com os grupos pesquisados, estudou-se os seus sistemas agrícolas e as mudanças ocorridas, onde a substituição de espécies foi o fator mais relevante. Resultados do trabalho indicaram que a introdução e a adaptação da banana contribuiu para a melhoria do agroecossistema e permitiu aos indígenas se adaptarem melhor à nova realidade pós-contato com a sociedade nacional, além dos ganhos na dieta e no rendimento do trabalho na roça. O conhecimento indígena sobre o seu agroecossistema pode ser visto como um processo co-evolutivo, na medida em que sociedade e sistema agrícola evoluem, mantendo-se as características básicas de interação ecológica
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Memorandum from A. E. Demaray to E. C. Finney
No full textFour letters of correspondence about the purchase of Bright Angel Trail between A. E. Demaray, Acting Director of the Grand Canyon National Park; E. C. Finney, Department of the Interior First Assistant Secretary; Carl T. Hayden, Representative (AZ); and Stephen T. Mather, Director of the National Park Service
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
Nanoporous polyanilines for pollutants removal from air and wastewater
No full textThe progressive growth of world population and industrialization have caused numerous emerging problems, e.g., environmental pollution, that threaten human health and life quality.
Pollutants removal from air, soil and wastewater has become an important objective to be accomplished by innovative nanomaterials able to remove dyes, metals, and so on [1].
Conducting polymers, as polyaniline and polypyrrole, have attracted a huge interest owing to their peculiar properties which make them valid substitutes of conventional materials in different fields. These compounds are generally synthesized following old polluting processes. Inspired by our long-standing experience in catalysis [2], we have recently addressed our efforts to find novel “green” approaches to produce them [3] and extend their application in the environmental field.
Herein, we report our recent achievements in the VOCs monitoring and removal from air, as well as in chromium and dyes removal from wastewater. In both cases nanoporous polyanilines, produced either by traditional or clean protocols, have been employed as the sorbent supports. The best materials were subjected to easy regeneration processes and, once reused, they were found to retain their original high performances.
[1] G. Z. Kyzas, K. A. Matis, J. Mol. Liq., 2015, 203,159;
[2] C. Della Pina, E. Falletta, M. Rossi, Chem. Soc. Rev., 2012, 41, 350;
[3] C. Della Pina, E. Falletta, M. Rossi, Cat. Today, 2011, 160, 11
Author, publisher and bookseller : a tripartite synergy in Nigerian book industry
No full textThis work is about the roles of Author, Publisher and Bookseller in Book development in
Nigeria. The paper started by delving into the history of Book Publishing in Nigeria after
which it proceeded by defining who an author, a publisher, and a bookseller is and
expatiated on the indispensable roles of these key actors in Nigerian Book Industry and in
the emerging Information Society. Furthermore, the various constraints to book
development were identified while the paper advised on how the Book Industry can be
further promoted in Nigeria. However, the paper concluded and made recommendations
on how the Book sector can help in enhancing scholarship in the country
Mitomycin C in highly myopic eyes - Author reply
No full textOphthalmology. 2005 Feb;112(2):208-18; discussion 219.
Mitomycin C modulation of corneal wound healing after photorefractive keratectomy in highly myopic eyes.
Gambato C, Ghirlando A, Moretto E, Busato F, Midena E.
SourceRefractive Surgery Service and Antimetabolite Therapy Research Unit, Department of Ophthalmology, University of Padova, Padova, Italy.
Abstract
PURPOSE: To evaluate the role of topical mitomycin C in corneal wound healing (CWH) after photorefractive keratectomy (PRK) in highly myopic eyes.
DESIGN: Prospective, double-masked, randomized clinical trial.
PARTICIPANTS: Seventy-two eyes of 36 patients affected by high (>7 diopters) myopia.
METHODS: In each patient, one eye was randomly assigned to PRK with intraoperative topical 0.02% mitomycin C application, and the fellow eye was treated with a placebo. Postoperatively, mitomycin C-treated eyes received artificial tears (3 times daily, tapered in 3 months), whereas the fellow eye was treated with fluorometholone sodium 2% and artificial tears (3 times daily, tapered in 3 months).
MAIN OUTCOME MEASURES: Uncorrected visual acuity (UCVA) and best-corrected visual acuity (BCVA), contrast sensitivity, manifest refraction, and biomicroscopy. Contrast sensitivity was determined using the Pelli-Robson chart. Corneal confocal microscopy documented CWH.
RESULTS: Mean follow-up was 18 months (range, 12-36). No side effects or toxic effects were documented. At 12-month follow-up examination, UCVAs (logarithm of the minimum angle of resolution) were 0.4+/-0.48 and 0.5+/-0.53 (P = .03) in mitomycin C-treated eyes and corticosteroid-treated eyes, respectively. At 1 year, corneal haze developed in 20% of corticosteroid-treated eyes, versus 0% of mitomycin C-treated eyes. At 12, 24, and 36 months, corneal confocal microscopy showed activated keratocytes and extracellular matrix significantly more evident in untreated eyes (Ps = 0.004, 0.024, and 0.046, respectively).
CONCLUSION: Topical intraoperative application of 0.02% mitomycin C can reduce haze formation in highly myopic eyes undergoing PRK.
Comment in
Ophthalmology. 2006 Feb;113(2):357; author reply 357-8
Author Co-Citation Analysis (ACA): a powerful tool for representing implicit knowledge of scholar knowledge workers
No full textIn the last decade, knowledge has emerged as one of the most important and valuable organizational assets. Gradually this importance caused to emergence of new discipline entitled ―knowledge management‖. However one of the major challenges of knowledge management is conversion implicit or tacit knowledge to explicit knowledge. Thus Making knowledge visible so that it can be better accessed, discussed, valued or generally managed is a long-standing objective in knowledge management. Accordingly in this paper author co- citation analysis (ACA) will be proposed as an efficient technique of knowledge visualization in academia (Scholar knowledge workers)
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