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Registros recuperados: 6.155
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A new brain metalloendopeptidase which degrades the Alzheimer ß-amyloid 1-40 peptide producing soluble fragments without neurotoxic effects BJMBR
Carvalho,K.M.; França,M.S.F.; Camarão,G.C.; Ruchon,A.F..
A new metalloendopeptidase was purified to apparent homogeneity from a homogenate of normal human brain using successive steps of chromatography on DEAE-Trisacryl, hydroxylapatite and Sephacryl S-200. The purified enzyme cleaved the Gly33-Leu34 bond of the 25-35 neurotoxic sequence of the Alzheimer ß-amyloid 1-40 peptide producing soluble fragments without neurotoxic effects. This enzyme activity was only inhibited by divalent cation chelators such as EDTA, EGTA and o-phenanthroline (1 mM) and was insensitive to phosphoramidon and captopril (1 µM concentration), specific inhibitors of neutral endopeptidase (EC 3.4.24.11) and angiotensin-converting enzyme (EC 3.4.15.1), respectively. The high affinity of this human brain endopeptidase for ß-amyloid 1-40...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brain metalloendopeptidase; Alzheimer ß-amyloid 1-40 peptide; Alzheimer's disease.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997001000002
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A new Europe for the old? Buscador Latinoamericano
Malia, Martin.
Tipo: InteractiveResource Palavras-chave: EUROPA.
Ano: 1997 URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=9644&tab=opac&oai:flacso.org.ec:9644
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A new Europe in the changing global system Buscador Latinoamericano
ed. por Richard Falk.
Tipo: Text Palavras-chave: NACIONALISMO; REGIONALISMO; EUROPA DEL LESTE; ETNICIDAD; SIGLO XX.
Ano: 1997 URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=123944&tab=opac&oai:flacso.org.ec:123944
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A new geminivirus associated with tomato in the state of Sao Paulo, Brazil. Repositório Alice
FARIA, J. C.; SOUZA-DIAS, J. A. C.; SLACK, S. A.; MAXWELL, D. P..
bitstream/item/164433/1/CNPAF-1997-pd.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Geminivirus; São Paulo; Tomate; Doença de planta; Bemisia tabaci.
Ano: 1997 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/205669
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A new genus of the family Pontocyprididae (Crustacea, Ostracoda) from the Indian and Pacific Oceans, with the description of two new species OMA
Wouters, K..
A new pontocypridid genus, <i>Peripontocypris</i> gen. nov. and two new species are described from the Maldive Islands, Papua New Guinea and from Easter Island. The new genus has a remarkable set of characters, which are unknown in other members of the family: six adductor muscle scars, a Y-shaped Zenker's organ and a large furca. Some other characters of the valves and the soft parts are reminiscent of different pontocypridid genera, and suggest a mosaic type of evolution. The affinities of <i>Peripontocypris</i> with other genera, and its taxonomic position are discussed.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Animal morphology Marine crustaceans New genera New species Ostracoda Peripontocypris Pontocyprididae ISE; Chile; Easter I. ISEW; Papua New Guinea ISW; Maldive I..
Ano: 1997 URL: http://www.vliz.be/imisdocs/publications/254780.pdf
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A new Robertsonian translocation in Holstein-Friesian cattle Inra
Pinton, A.; Ducos, A.; Berland, H.M.; Séguéla, A.; Blanc, M.F.; Darré, A.; Mimar, S.; Darré, R..
Une nouvelle translocation robertsonienne a été mise en évidence chez une vache de race Holstein. La coloration en bandes GTG nous a permis d’identifier les chromosomes impliqués dans la translocation. Il s’agit des chromosomes 19 et 21. La coloration en bandes CBG montre que le chromosome transloqué est dicentrique. Une analyse cytogénétique des apparentés de l’animal porteur a permis de mettre en évidence aux autres animaux porteurs.
Tipo: Journal Article Palavras-chave: RACE BOVINE HOLSTEIN; TRANSLOCATION ROBERTSONIENNE; ANOMALIE CHROMOSOMIQUE.
Ano: 1997 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9900008225077669&uri=/notices/prodinra1/2007/09/
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A New Soil Conservation Methodology and Application to Cropping Systems in Tropical Steeplands: A comparative synthesis of results obtained in ACIAR Project PN 9201 AgEcon
Tipo: Report Palavras-chave: Land Economics/Use.
Ano: 1997 URL: http://purl.umn.edu/113906
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A new species and new section of Mycena from Costa Rica Naturalis
Maas Geesteranus, R.A.; Ovrebo, Clark L..
Mycena seclusa is newly described from the lowland rain forests of Costa Rica; it is the type species of the new section Seclusae.
Tipo: Article / Letter to the editor
Ano: 1997 URL: http://www.repository.naturalis.nl/record/531926
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A new species of Coelocraera (Coleoptera: Histeridae) from Ruanda Naturalis
Kanaar, P..
The new species Coelocraera tuberiventer is described and figured. Its position within the genus Coelocraera is discussed.
Tipo: Article / Letter to the editor Palavras-chave: Coleoptera; Histeridae; Coelocraera; Myrmecophiles; Ruanda; Africa; 42.75.
Ano: 1997 URL: http://www.repository.naturalis.nl/record/318019
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A new species of deepwater flathead, Bembras adenensis (Scorpaeniformes: Bembridae) from the western Indian Ocean OceanDocs
Knapp, L.W.; Imamura, H..
A new bembrid, Bembras adenensis, is described on the basis of specimens collected from the Gulf of Aden, western Indian Ocean. This species is easilydistinguished from B. japonica, the only known congener of the genus, by thefollowing combination of characters: larger orbital diameter, longer head length,pectoral-fin with a small black blotch near tip of upper rays, 3 gill rakers on upper gillarch, 19 pectoral-fin rays, and 15 anal-fin rays (vs. smaller orbital diameter, shorter head length, pectoral-fin with several small spots forming irregular bands, 2 gill rakerson upper gill arch, usually 17 pectoral-fin rays, and 14 anal-fin rays in B. japonica).
Tipo: Journal Contribution Palavras-chave: Fish species.
Ano: 1997 URL: http://hdl.handle.net/1834/955
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A new species of <i>Gastrosaccus</i> (Crustacea, Mysidacea) from beaches in Madagascar OMA
Wooldridge, T.; Mees, J.; Webb, P..
<i>Gastrosaccus madagascariensis</i> sp.nov. is common in the surfzone of sandy beaches along the east and south coasts of Madagascar. Morphologically, it is characterised by having seven lateral spines along each side of the telson; with spines 2-4 and the penultimate spine being dorso-lateral in origin. One or two spinules are interspersed between the fifth and terminal spines. The fourth exopod segment of pleopod 3 in the male is bulbous, bearing two terminal barbed unequal spines. A robust and naked seta is also present on the same segment in the male.
Tipo: Info:eu-repo/semantics/article Palavras-chave: New species Gastrosaccus Norman; 1868.
Ano: 1997 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=5644
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A new species of <i>Parthenope</i> Weber (Crustacea: Brachyura: Parthenopidae) from the Pacifc coast of Mexico OMA
Hendrickx, M.E.; Landa-Jaime, V..
A new species of Parthenopidae from the East Pacific belonging to the genus <i>Parthenope</i> Weber is described and illustrated. <i>Parthenope johngarthi</i> n. sp. was collected along the west coast of Mexico, off the coast of Jalisco and Colima. <i>Parthenope johngarthi</i> is readily distinguished from species of other genera of Parthenopidae from the East Pacific by the shape of the tuberculate carapace, the relative lenght and shape of the chelipeds, and the shape and relative size of segments of walking legs. It is closely related to <i>P. exilipes</i> (Rathbun, 1893) but differs from the latter by its slender and almost smooth walking legs, its slender and less densely tuberculate chelipeds, and by...
Tipo: Info:eu-repo/semantics/article
Ano: 1997 URL: http://www.vliz.be/imisdocs/publications/303567.pdf
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A new species of Namanereis (Polychaeta: Nereididae: Namanereidinae) in groundwater of the sultanate of Oman, Arabian peninsula Naturalis
Glasby, Christopher J..
A new species of namanereid polychaete, Namanereis araps n. sp., is described from groundwater of the Sultanate of Oman. It occurs in fresh groundwater of natural springs, man-made water channels (falaj) and dry stream beds (wadis) in recently uplifted limestone areas of the south-eastern Arabian peninsula. This is the first species of Namanereis recorded from the coast of the northern Indian Ocean. Namanereis araps n. sp. most closely resembles the Caribbean species Namanereis hummelincki (Augener, 1933).
Tipo: Article / Letter to the editor Palavras-chave: Sultanate of Oman; Arabian peninsula; Freshwater Polychaeta; Nereididae; Namanereidinae; Namanereis; New species.
Ano: 1997 URL: http://www.repository.naturalis.nl/record/504763
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A Nonparametric Analysis of Efficiency for a Beefpacking Firm: Implications of Federal Food Safety Regulations AgEcon
Featherstone, Allen M.; Klein, Nicole L..
Tipo: Conference Paper or Presentation Palavras-chave: Agribusiness; Food Consumption/Nutrition/Food Safety.
Ano: 1997 URL: http://purl.umn.edu/35805
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A NONPARAMETRIC ANALYSIS OF EFFICIENCY FOR A SAMPLE OF KANSAS BEEF COW FARMS AgEcon
Featherstone, Allen M.; Langemeier, Michael R.; Ismet, Mohammad.
Competitive pressures in the cow-calf sector increased in 1995 because of a decline of 27% in calf prices. Technical, allocative, and scale efficiency measures were used to examine the competitiveness of a sample of Kansas beef cow farms. On average, the farms were 78% technically efficient, 81% allocatively efficient, and 95% scale efficient. Enterprise profitability was correlated positively with the efficiency measures. Inefficiency was related to herd size and degree of specialization. Producers should focus on using capital, feed, and labor more efficiently rather that increasing their size. Increased concentration of the cow-calf sector will not result in large cost savings given the current technology.
Tipo: Journal Article Palavras-chave: Beef cow; Industry structure; Nonparametric efficiency; Productivity Analysis.
Ano: 1997 URL: http://purl.umn.edu/15547
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A nonparametric approach to measuring cost efficiency of Japan's small and medium-scale dairy processing companies and cooperatives OAK
山本, 康貴; 和田, 大輔; 佐々木, 市夫; Yamamoto, Yasutaka; Wada, Daisuke; Sasaki, Ichio; ACORDA, Girlie May Subaido.
Ano: 1997 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1960
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A Nonparametric Test for Monopoly Market Power Exertion by Breakfast Manufacturers AgEcon
Espinoza, Maria-Cristina; Love, H. Alan.
Tipo: Conference Paper or Presentation Palavras-chave: Industrial Organization.
Ano: 1997 URL: http://purl.umn.edu/35867
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A Note on Price Information in Commodity Markets with Evidence from the Cotton Market AgEcon
Hudson, Darren; Ethridge, Don E.; Segarra, Eduardo.
Theory and analysis of price information and its importance have typically assumed that the information is correct. Additionally, most analyses have centered on general price information assuming homogeneous products. This paper examines the implications of incorrect price information on the basis of quality, with evidence from prior research on cotton prices used as an illustration. Results of a conceptual analysis indicate that quality has direct implications on the production and marketing process. Incorrect information on prices of different quality leads to distortions in the market and market inefficiency.
Tipo: Report Palavras-chave: Agricultural and Food Policy; Demand and Price Analysis.
Ano: 1997 URL: http://purl.umn.edu/53174
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A novel polymorphism in the coding region of the vasopressin type 2 receptor gene BJMBR
Nephrogenic diabetes insipidus (NDI) is a rare disease characterized by renal inability to respond properly to arginine vasopressin due to mutations in the vasopressin type 2 receptor (V2(R)) gene in affected kindreds. In most kindreds thus far reported, the mode of inheritance follows an X chromosome-linked recessive pattern although autosomal-dominant and autosomal-recessive modes of inheritance have also been described. Studies demonstrating mutations in the V2(R) gene in affected kindreds that modify the receptor structure, resulting in a dys- or nonfunctional receptor have been described, but phenotypically indistinguishable NDI patients with a structurally normal V2(R) gene have also been reported. In the present study, we analyzed exon 3 of the...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Vasopressin; Receptor; Polymorphism; Diabetes insipidus; Receptor gene polymorphism.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000400002
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A oferta de informacoes florestais por instituicoes brasileiras. Repositório Alice
GARCIA, C. H.; SCHAITZA, E. G..
1997
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Recuperacao de informacao; Brasil; Acesso; Information retrieval; Right of access; Brazil.
Ano: 1997 URL: http://www.alice.cnptia.embrapa.br/handle/doc/287252
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