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A RENEWAL THEORETIC APPROACH TO ENVIRONMENTAL STANDARD SETTING AgEcon
Batabyal, Amitrajeet A..
The process of environmental regulation is usually a two-step one. In the first step, a standard for environmental quality is set. Then, in the second step, a regulatory mechanism is put in place to achieve the standard. In this paper I show how renewal theory can be used to set the quality standard optimally.
Tipo: Working or Discussion Paper Palavras-chave: Environmental; Regulation; Standard; Renewal; Theory; Environmental Economics and Policy; D81; Q20.
Ano: 1995 URL: http://purl.umn.edu/28354
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A restauração da integridade esofágica com o uso de "flap" muscular, sem formação de estenose clínica, em ovinos Ciência Rural
Contesini,Emerson Antonio; Pippi,Ney Luis; Natalini,Claudio Correa; Marchionatti,Anair; Silveira,Gustavo Mariosi; Silva,Marco Aurélio; Pelegrini,Luis Carlos de; Witz,Maria Inês.
A pouca seletividade na preensão de alimentos, o manejo, além da própria localização anatômica predispõem os ovinos a uma série de lesões esofágicas que podem interferir na sua alimentação, produtividade e mesmo na sobrevivência dos mesmos. O desenvolvimento desse trabalho visou testar a eficiência do músculo esternomastóideo na vedação de ferida cirúrgica na parede esofágica, na sua capacidade de servir como leito para proliferação da mucosa e observação da cicatrização decorrente de lesões com dimensões de 2x5cm na parede do esôfago. Para esse experimento foram utilizados quinze ovinos, os quais foram divididos em dois grupos. Os animais foram submetidos à cirurgia com remoção de um retalho de 2x5cm da parede esofágica e substituição pelo músculo...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Esôfago; "flap" muscular; Cicatrização.
Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781995000300014
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A review of the Asian species of the genus Euaspis Gerstäcker (Hymenoptera: Apoidea: Megachilidae) Naturalis
Baker, D.B..
The Asian species of Euaspis are reviewed. Euaspis carbonaria of authors is shown to be composite: a lectotype is designated and the species with which carbonaria has long been confused is described as Euaspis edentata spec. nov. Euaspis lorenzae spec. nov. is described from the Philippines and E. wegneri spec. nov. from Bacan (Moluccas). Two species described by Pasteels from 'Arabia' are shown to be of Bornean origin. Euaspis bakeri (Viereck, 1924) is synonymized with E. strandi Meyer, 1922, for which a lectotype is designated (the type locality Sikhim given by Meyer for this taxon is apparently false), and E. impressa (Viereck, 1924) with E. polynesia Vachal, 1903.
Tipo: Article / Letter to the editor Palavras-chave: Euaspis edentata; Euaspis lorenzae; Euaspis wegneri; Malesia; New synonymy; Keys; 42.75.
Ano: 1995 URL: http://www.repository.naturalis.nl/record/318701
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A REVIEW OF THE PSYCHOLOGICAL LITERATURE ON RISK PERCEPTION IN TERMS OF CHANCE, HARM, AND CONTEXT AgEcon
Decker, Bill D..
This review examines the psychological literature on risk perception in terms of van Ravenswaay's proposal of a broad-based definition of risk perception that includes the three concepts of chance, harm, and context. The review further investigates the manner in which psychological researchers attempt to measure risk perception. It is suggested that the majority of psychological research on risk perception does not address van Ravenswaay's concepts in a comprehensive manner. This review of the psychological literature reveals that elements of van Ravenswaay's concepts are often employed as variables by psychological researchers, although not in a fashion similar to that suggested by van Ravenswaay. It is proposed that van Ravenswaay's definition of...
Tipo: Thesis or Dissertation Palavras-chave: Risk and Uncertainty.
Ano: 1995 URL: http://purl.umn.edu/11171
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A review of the subgenus Hemioptica Roger of the genus Polyrhachis Fr. Smith with description of a new species (Hymenoptera: Formicidae: Formicinae) Naturalis
Dorow, W.H.O.; Kohout, R.J..
The genus-group taxon Hemioptica Roger is reviewed and treated as a subgenus of Polyrhachis Fr. Smith. Three species are recognised: P. bugnioni Forel, P. scissa (Roger), and P. boltoni spec. nov. Previously included taxa P. abrupta Mayr, P. aculeata Mayr and P. pubescens Mayr are transferred to the subgenus Polyrhachis (Myrma) Billberg. A key to species of Hemioptica is provided; distribution ranges of individual species are given and known ecological data summarised. A lectotype is designated for P. scissa (Roger).
Tipo: Article / Letter to the editor Palavras-chave: Formicidae; Polyrhachis; Hemioptica; Systematics; Biology; Distribution; 42.75.
Ano: 1995 URL: http://www.repository.naturalis.nl/record/318311
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A review on the diagnosis infection in cattle of Schistosoma bovis: current status and future prospects Ciência Rural
Aradaib,Imadeldin Elamin; Ahdelmageed,Elabbas Mohamed; Hassan,Sanaa Ali; Riemann,Hans Peter.
Bovine schistosomiasis, caused by Schistosoma bovis, is a serious veterinary problem in many parts of the worid. The current methods used for the diagnosis of the disease include clinical signs, pathological lesions, parasitological and serological techniques. As clinical signs and parasitological lesions caused by S. bovis are indistinguishable from those induced by other trematode parasites, confirmation of diagnosis by these methods is unreliable. Parasitological techniques used to demonstrate eggs of the parasite in fecal or tissue samples represent the most accurate method for detection of an active S. bovis infection. The tissue of choice for detection of S. bovis infection is the liver because of the visible macroscopic lesion that can be seen in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Schistosoma bovis; Bovine schistosomiasis; Diagnosis; Cattle.
Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781995000300029
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A revision of Papuechites (Apocynaceae) Naturalis
Middleton, D.J..
In the present article the genus Papuechites Markgraf (Apocynaceae) is revised. One species is recognised, Papuechites aambe (Warb.) Markgr.
Tipo: Article / Letter to the editor
Ano: 1995 URL: http://www.repository.naturalis.nl/record/526235
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A revision of the Indo-Pacific genus Oreophorus Rüppell, 1830 (Crustacea : Decapoda : Brachyura : Leucosiidae) IRD
Tan, C.G.S.; Ng, P.K.L..
Le genre #Oreophorus$ Rüppell, 1830, contenait 13 espèces et avait été divisé par Ihle (1918) en trois sous-genres : #Oreophorus$ s. str., #Oreotlos$ Ihle, 1918 et #Tlos$ Adams et White, 1848. Plus d'une centaine de spécimens de ce groupe, provenant de différentes localités de l'Indo-Pacifique, ont été examinés, ainsi que les types de la plupart des espèces. #Oreophorus$ s. lato est divisé en six genres distincts, dont deux nouveaux, renfermant 28 espèces. Des néotypes et/ou des lectotypes sont désignés pour les espèces suivantes : #Alox rugosum$ (Stimpson, 1858) néotype, #Alox ornatum$ (Ihle, 1918) lectotype, #Alox patella$ (Alcock, 1896) lectotype. Onze espèces nouvelles sont décrites : #Alox antheos$, #Alox glene$, #Alox somphos$, #Alox zalion$,...
Tipo: Text Palavras-chave: INVERTEBRE AQUATIQUE; TAXONOMIE; ANATOMIE ANIMALE; ESPECE NOUVELLE; GENRE NOUVEAU; CLE DE DETERMINATION.
Ano: 1995 URL: http://www.documentation.ird.fr/hor/fdi:010006434
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A routine method to study soil organic matter by particle-size fractionation : examples for tropical soils IRD
Gavinelli, Evelyne; Feller, Christian; Larré Larrouy, Marie-Christine; Bacye, B.; Djegui, N.; Nzila, J. de D..
Particle size fractionation is becoming commonly used for studying soil organic matter (OM). However, isolation of clay and silt represents a long and thus tedious step in the fractionation procedure. We propose an approach identical to the one utilized in particle size analysis with an estimation of the recoveries from aliquots ("aliquot" method) of the 0-2 and 0-20 micrometer fractions and no entire isolation ("decanting" method) of clay and silt. In comparison with the "decanting" method, the fraction and carbon (C) recoveries obtained by the "aliquot" method were satisfactory, but those of nitrogen (N) being hardly interpretable because of an insufficient accuracy of the determination method. The recommended method saves time and laboratory space and...
Tipo: Text Palavras-chave: SOL; MATIERE ORGANIQUE; METHODE D'ANALYSE; CARBONE; AZOTE.
Ano: 1995 URL: http://www.documentation.ird.fr/hor/fdi:010011145
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A salinidade das aguas disponiveis para a pequena irrigaçao no sertao nordestino : caracterizaçao, variaçao sazonal, limitaçoes de uso IRD
Audry, Pierre; Suassuna, J..
Tipo: Text Palavras-chave: RESSOURCES EN EAU; SALINITE; IRRIGATION; SALINISATION; ANALYSE STATISTIQUE; CHIMIE DE L'EAU; VARIATION SAISONNIERE.
Ano: 1995 URL: http://www.documentation.ird.fr/hor/fdi:010004811
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A Semiparametric Transformation Approach to Estimating Usual Daily Intake Distributions AgEcon
Nusser, Sarah M.; Carriquiry, Alicia L.; Dodd, Kevin W.; Fuller, Wayne A..
Tipo: Working or Discussion Paper Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1995 URL: http://purl.umn.edu/18678
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A sociologia entre a modernidade e a contemporaneidade Buscador Latinoamericano
organizado por: Sergio Adorno.
Tipo: Text Palavras-chave: TRABAJO; RAZA; CLASES SOCIALES.
Ano: 1995 URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=12996&tab=opac&oai:flacso.org.ec:12996
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A standard experimental diet for the study of fatty acid requirements of weaning and first ongrowing stages of European sea bass (<i>Dicentrarchus labrax</i> L.): selection of the basal diet OMA
Coutteau, P.; Van Stappen, G.; Sorgeloos, P..
A standard experimental diet was developed to study lipid nutrition in marine fish larvae during weaning and first ongrowing. Basal diets were prepared by extrusion-cooking, crumbling of the pellets, and sieving to obtain particles in the size ranges 150-300 µm and 300-500 µm. Three protein sources in the extruded basal diet were evaluated: (1) micronized cod protein granulate (COD); (2) a mixture of casein, gelatin, and albumin (CGA); (3) a mixture of cod fish meal, whey protein, soybean protein concentrate, albumin, hemoglobin meal, and wheat gluten (MIX). A variable lipid fraction was added to the extruded nucleus by coating the particles with an emulsion, coconut oil (COCO), or fish oil emulsion (FO), in a fluidized bed granulator. European sea bass...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dicentrarchus labrax (Linnaeus; 1758) [Bass].
Ano: 1995 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2541
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A standardized description of European Sminthuridae (Collembola, Symphypleona), 3: description of seven species of Sminthurus, including four new to science Naturalis
Nayrolles, Pierre.
The following three species are redescribed: Sminthurus viridis (Linnaeus, 1758), Sminthurus nigromaculatus Tullberg, 1871, and Sminthurus multipunctatus Schäffer, 1896. Four new species are described from France and Spain: Sminthurus bourgeoisi n. sp., Sminthurus bozoulensis n. sp., Sminthurus leucomelanus n.sp.,and Sminthurus hispanicus n. sp. The importance of the ontogeny of chaetotaxy is stressed. Indeed, not all species acquire the secondary chaetotaxy in the same instar, and for these characters the most informative instar is not the adult but the third juvenile instar. The study of such characters involves the clustering of similar characters. A short discussion is given about this issue (selection of characters and clustering criteria).
Tipo: Article / Letter to the editor Palavras-chave: Collembola; Symphypleona; Sminthurus; Chaetotaxy; New species; Taxonomy; Ontogeny; France; Spain.
Ano: 1995 URL: http://www.repository.naturalis.nl/record/503948
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A Strategic Approach to Agricultural Research Program Planning in Sub-Saharan Africa AgEcon
Boughton, Duncan; Crawford, Eric W.; Howard, Julie A.; Oehmke, James F.; Shaffer, James D.; Staatz, John M..
Recent studies have shown that agricultural research can have high payoffs in Africa, but impact depends on how well technology fits with evolving needs and capacity in the agricultural sector and the rest of the economy. Structural adjustment policies (e.g., market liberalization, currency devaluation) and political change are transforming user demands for new technology and the economic environment in which technology must perform. The challenge is how to design agricultural research as a strategic input to promote broad-based economic growth, structural transformation, and food security in the increasingly market-driven, but fragile, economies of Africa.
Tipo: Report Palavras-chave: Food Security; Food Policy; Agricultural Research; Research and Development/Tech Change/Emerging Technologies; Downloads May 2008-July 2009: 44; Q18.
Ano: 1995 URL: http://purl.umn.edu/54702
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A study on the DHA content of T-ISO and its impact on preparing rations for larviculture OMA
Tzovenis, I.; De Pauw, N.; Sorgeloos, P..
Tipo: Info:eu-repo/semantics/article
Ano: 1995 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2644
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A subfossil half-mandible of a Grey Seal Naturalis
Bree, P.J.H. van; Bosscha Erdbrink, D.P..
The fortuitous discovery, in the collections of the National Museum of Natural History at Leiden, of a probably subfossil right half-mandible of a Grey Seal is reported. A short description of the piece is given and it is compared with some other recent, subfossil and fossil material.
Tipo: Article / Letter to the editor Palavras-chave: Mammalia; Pinnipedia; Halichoerus grypus; Archeozoology.
Ano: 1995 URL: http://www.repository.naturalis.nl/record/504204
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A survey of ecological economics Buscador Latinoamericano
ed. por Rajaram Krishnan; Jonathan M. Harris; Neva R. Goodwin.
Tipo: Text Palavras-chave: DESARROLLO SUSTENTABLE.
Ano: 1995 URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=102448&tab=opac&oai:flacso.org.ec:102448
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A Survey of Noncooperative Game Theory with Reference to Agricultural Markets: Part 1. Theoretical Concepts AgEcon
Sexton, Richard J..
This paper is the first of a two-part survey on noncooperative game theory relevant to agricultural markets. Part 1 discusses types of noncooperative games and reviews important developments in noncooperative game theory solution concepts, including Nash equilibrium, subgame perfect equilibrium, and perfect Bayesian equilibrium. Strengths and weaknesses of game theory as a modelling tool are also assessed. Part 2 of the survey will discuss specific applications to agricultural markets.
Tipo: Journal Article Palavras-chave: Marketing.
Ano: 1995 URL: http://purl.umn.edu/12401
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A Survey of the Subsistence and Artisanal Fisheries in Rural Areas of Viti Levu, Fiji AgEcon
Rawlinson, N.J.F.; Milton, D.A.; Blaber, S.J.M.; Sesewa, A.; Sharma, S.P..
Tipo: Technical Report Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1995 URL: http://purl.umn.edu/118445
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