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A carbohydrate-based mechanism of species recognition in sea urchin fertilization BJMBR
Mourão,P.A.S..
In the present review, we describe a systematic study of the sulfated polysaccharides from marine invertebrates, which led to the discovery of a carbohydrate-based mechanism of sperm-egg recognition during sea urchin fertilization. We have described unique polymers present in these organisms, especially sulfated fucose-rich compounds found in the egg jelly coat of sea urchins. The polysaccharides have simple, linear structures consisting of repeating units of oligosaccharides. They differ among the various species of sea urchins in specific patterns of sulfation and/or position of the glycosidic linkage within their repeating units. These polysaccharides show species specificity in inducing the acrosome reaction in sea urchin sperm, providing a clear-cut...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Acrosome reaction; Fertilization; Sulfated fucans; Glycosaminoglycans; Sulfated galactans; Species diversity; Sperm-egg recognition.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000100002
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A carcinicultura do nordeste brasileiro e sua inserção em cadeias globais de produção: foco nos APLs do Ceará Rev. Econ. Sociol. Rural
Tahim,Elda Fontinele; Araújo Junior,Inácio Fernandes de.
O artigo faz uma análise da forma de inserção da carcinicultura do Nordeste, em particular dos Arranjos Produtivos Locais - APLs de cultivo de camarão do estado do Ceará, em cadeias globais de produção, bem como sua estrutura de governança. Isto porque os sistemas de cultivo destes crustáceos se concentram no Nordeste, sendo, na atualidade, o Ceará o maior produtor do Brasil na forma cultivado, expressando, ao longo de suas bacias hidrográficas, dois APLs bem característicos (litorais leste e oeste), que estiveram intensamente inseridos em mercado internacional por meio de cadeias globais de produção. O estudo teve por base um levantamento de dados secundários e entrevistas junto aos gestores e proprietários das empresas e outros agentes dos APLs. As...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carcinicultura; Arranjos Produtivos Locais; Cadeias globais de produção; Formas de governança.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032014000300009
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A case of acute diarrhea due to the emerging pathogen Campylobacter jejuni subsp. doylei in Southern Chile BJM
Fernández,Heriberto; Rodríguez,Roxana; Barudi,Carmen; Lobos,Marta.
The first documented case of acute diarrhea due to C. jejuni subsp. doylei in Chile is reported. The clinical findings, the absence of other enteropathogens, virus or parasites and the fact that C. jejuni subsp. doylei was the only bacteria isolated support the assumption that it was the etiological agent of this diarrheal case.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Campylobacter jejuni subsp. doylei; Enteritis; Emerging pathogen.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000100011
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A case of albinism in the Central American spider monkey, Ateles geoffroyi, in Honduras Mastozool. neotrop.
Espinal,Mario; Mora,José Manuel; Ruedas,Luis A; López,Lucía Isabel; Marineros,Leonel.
Pre­sentamos el primer caso de albinismo completo para el mono araña centroamericano (Ateles geoffroyi), una hembra juvenil del este de Honduras. El albinismo es una condición genética presentada en numerosas especies de vertebrados. Si bien normalmente poco frecuente, la incidencia de este fenómeno en poblaciones silvestres puede aumentar debido a estrés ambiental, cual puede ser endogamia en poblaciones aisladas. En mamíferos, los trastornos de color del pelaje son el resultado de efectos pleiotrópicos. Los órganos y nervios sensoriales se ven particularmente afectados por estos trastornos debido al origen común de los melanocitos y los neurocitos en la cresta neural. El caso de un mono araña albino en el este de Honduras podría resultar de un aumento de...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Coloración del pelo; Conservación; Desorden genético; Leucismo; Mamíferos; Neotrópico.
Ano: 2016 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-93832016000100007
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A case of extensive chromoblastomycosis from North India BJM
Verma,Ghanshyam Kumar; Verma,Santwana; Singh,Gagandeep; Shanker,Vinay; Tegta,Geeta Ram; Minhas,Smridhi; Sharma,Vineeta; Thakur,Jatin.
A case of extensive chromoblastomycosis of the right leg and thigh with verruciform to nodular lesions evolving rapidly over five years duration is reported. The diagnosis was confirmed by visualizing pathognomonic pigmented muriform bodies with unique septate hyphae and mycological culture yielding Fonsecaea pedrosoi.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromoblastomycosis; Extensive; India.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000100040
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A case of intersex occurrence in Steindachneridion parahybae (Steindachner, 1877) (Siluriformes: Pimelodidae) under captivity condition: a cytogenetic and morphological study Neotropical Ichthyology
Honji,Renato M.; Caneppele,Danilo; Pandolfi,Matias; Nostro,Fabiana L. Lo; Moreira,Renata G..
ABSTRACT Little is known about reproductive biology of endangered Steindachneridion parahybae , a gonochoristic teleost species inhabiting the Paraíba do Sul River Basin, and herein is the first description of intersex in S. parahybae juvenile. The normal appearance of ovaries and testes in juvenile from the same lot of breeding were also described for comparison, even as cytogenetic analysis was performed in these juveniles. One specimen was a priori classified as female due to the macroscopic characteristic of ovaries, with small yellow oocytes, without fringes (a main characteristic of catfish male), and larger than testes; however the microscopic analysis revealed the presence of ovotestes, including the complete spermatogenesis. S. parahybae had...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Histology; Karyotype; Ovary; Ovotestes; Testicles.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000400206
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A case of leucism in the burrowing owl Athene cunicularia (Aves: Strigiformes) with confirmation of species identity using cytogenetic analysis Rev. Bras. Zool.
Nogueira,Denise M; Alves,Maria Alice S.
Leucism is an inherited disorder, characterized by the lack of pigments in part or all of the body, normal coloration of the eyes and, in birds, in naked parts such as the bill and legs. This kind of disorder is sometimes erroneously designated as albinism or partial albinism. In this study, we present a case of leucism in a wild owl. The studied individual presented completely white plumage, light-yellow coloration of legs and bill and normal coloration of eyes. According to morphological features, this owl is a specimen of burrowing owl, Athene cunicularia (Molina, 1782). To confirm the species identity, we used cytogenetic analyses for karyotypic determination, comparing it to the previously described one in the literature. We also studied a captive...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aberrant plumage; Bird; Chromosomes; Karyotype.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000100008
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A case of miltefosine responsive pleomorphic post kala-azar dermal leishmaniasis BJID
Pal,Dipankar; Naskar,Arindam; Ghosh,Manab Kumar.
Tipo: Info:eu-repo/semantics/article
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000500016
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A case of mosaicism in the germinal line of Odontophrynus americanus (Dùmeril et Bibron. 1841) JBAG
Salas,Nancy; Martino,Adolfo.
The cytogenetic studies have special importance in the zoological research because by means of karyotype analysis they contribute to the identifi cation of different entities, facilitate the evaluation of the proximity or relationship degree among certain species and fi nally they contribute with fundamental data to the phylogenetic assessment (Schmid et al., 1985; Zampieri et al., 2004). The occurrence of polyploidy in different anuran families that appear as cryptic species highlights the importance of the cytogenetic study at the population level (Valetti et al., 2009).
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mosaicism; Odontophrynus americanus.
Ano: 2010 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332010000100008
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A case of prenatal diagnosis of fetal hydantoin syndrome by ultrasound Genet. Mol. Biol.
Gollop,Thomaz Rafael; Salzo,Ivan.
Fetal hydantoin syndrome (FHS) is a set of disruptions occasionally present in fetuses exposed in utero to phenytoin or other anticonvulsants. Administration of phenytoin in early pregnancy may impair proper psychomotor performance expected for children's development. Several combined phenotypic markers delineate the syndrome, but the presence of single clinical signs is more common. There is controversy about the etiology of FHS. Associated disruptions may be related to a deficiency in a detoxifying enzyme (epoxide hydrolase), vascular problems, and/or factors not yet known. Genetic causes are believed to influence susceptibility to the drug. This text reports an unusual pattern of malformations detected in an ultrasound scan (gastroschisis, sacral...
Tipo: Info:eu-repo/semantics/article
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571999000200002
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A case report of renal cell carcinoma in a dog Arq. Bras. Med. Vet. Zootec.
Paşca,A.-S.; Lazăr,M..
Mix renal carcinoma was noticed during the necropsic examination of a 14 year old mix breed female. Tumours were bilateral and metastasis was noticed in the spleen and myocard. Histological examination evidenced morphological aspects characteristic to the mixt renal carcinoma. Histological aspects described in this individual characterize renal cell carcinoma, also known as renal adenocarcinoma, hypernephroma or, in older literature, Grawitz tumour.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Dog; Renal carcinoma; Pathology.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000500004
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A case study of ship track formation in a polluted marine boundary layer OMA
Noone, K.J.; Johnson, D.W.; Taylor, J.P.; Ferek, R.J.; Garrett, T.; Hobbs, P.V.; Durkee, P.A.; Nielsen, K.; Öström, E.; O'Dowd, C.; Smith, M.H.; Russell, L.M.; Flagan, R.C.; Seinfeld, J.H.; De Bock, L.; Van Grieken, R.; Hudson, J.G.; Brooks, I.; Gasparovic, R.F.; Pockalny, R.A..
A case study of the effects of ship emissions on the microphysical, radiative, and chemical properties of polluted marine boundary layer clouds is presented. Two ship tracks are discussed in detail. <i>In situ</i> measurements of cloud drop size distributions, liquid water content, and cloud radiative properties, as well as aerosol size distributions (outside-cloud, interstitial, and cloud droplet residual particles) and aerosol chemistry, are presented. These are related to remotely sensed measurements of cloud radiative properties. The authors examine the processes behind ship track formation in a polluted marine boundary layer as an example of the effects of anthropogenic particulate pollution on the albedo of marine stratiform clouds.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aerosols; Air pollution; Albedo; Atmosphere; Atmosphere; Atmospheric boundary layer; Boundary layers; Cloud cover; Clouds; Man-induced effects; Marine environment; Marine pollution; Particulates; Remote sensing; Ships.
Ano: 2000 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8839
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A case study of ships forming and not forming tracks in moderately polluted clouds OMA
Noone, K.J.; Öström, E.; Ferek, R.J.; Garrett, T.; Hobbs, P.V.; Johnson, D.W.; Taylor, J.P.; Russell, L.M.; Flagan, R.C.; Seinfeld, J.H.; O'Dowd, C.D.; Smith, M.H.; Durkee, P.A.; Nielsen, K.; Hudson, J.G.; Pockalny, R.A.; De Bock, L.; Van Grieken, R.E.; Gasparovic, R.F.; Brooks, I..
The effects of anthropogenic particulate emissions from ships on the radiative, microphysical, and chemical properties of m(oderately polluted marine stratiform clouds are examined. A case study of two ships in the same air mass is presented where one of the vessels caused a discernible ship track while the other did not. <i>In situ</i> measurements of cloud droplet size distributions, liquid water content, and cloud radiative properties, as well as aerosol size distributions (outside cloud, interstitial, and cloud droplet residual particles) and aerosol chemistry, are presented. These are related to measurements of cloud radiative properties. The differences between the aerosol in the two ship plumes are discussed; these indicate that...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aerosols; Air pollution; Albedo; Anthropogenic factors; Atmospheric boundary layer; Atmospheric particulates; Chemical plumes; Cloud physics; Clouds; Droplets; Fuels; Ocean-atmosphere system; Pollution effects; Radiative transfer; Ships; Size distribution.
Ano: 2000 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8840
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A castração como um dos recursos disponíveis para o manejo populacional de cães e gatos com resultados positivos em Jaguariúna, Estado de São Saulo, Brasil MV&Z
Moraes, J. E. C.; Morais, J. R. S.; Fregni, W.; Pelisão, M. C. O.
O município de Jaguariúna, estado de São Paulo, Brasil, apresenta uma população de seres humanos de 53.069 habitantes, segundo o IBGE de 2016, e uma população estimada de 8.262 cães e gatos. No ano de 2006, a prefeitura do município passou a realizar o projeto de castração permanente como estratégia destinada ao manejo da população local de cães e gatos. A partir do ano de 2008, a atividade passou a ser executada com a colaboração do curso de Medicina Veterinária da Faculdade de Jaguariúna (FAJ). Dessa parceria, no transcurso de dez anos foi realizada a castração de mais de 6000 animais, o que contribuiu para evitar o acúmulo e a aglomeração destes em vias públicas devido ao cio das fêmeas. As etapas da campanha de castração incluem: a) programação e...
Tipo: Info:eu-repo/semantics/article
Ano: 2017 URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/37636
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A catalog of Bryophyta types deposited at the National Museum of Brazil Acta Botanica
Câmara,Paulo E.A.S.; Carvalho-Silva,Micheline; Silva,Maria Sulamita Dias da; Peralta,Denilson Fernandes.
While visiting the Herbarium of the Botany Department of the National Museum of the Federal University of Rio de Janeiro (code, R), we located the types of 219 bryophyte names, most of which were published by Karl Müller (cited as Müller Hallensis), whose holotypes were lost during the bombing of the Berlin Herbarium in 1943. A total of 181 names (82%) are possible candidates for lectotypification and most likely not to be found elsewhere. We also found the complete collection of Müller's "Bryologia Serrae Itatiaiae", made by Ernst Ule.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazil; Brotherus; Müller Hallensis; Types; Ule.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000400007
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A catalog of the type specimens of various families of Tenebrionoidea (Insecta: Coleoptera) housed at the "Museo de La Plata", Argentina Rev. Soc. Entomol. Argent.
LANTERI,Analía A.; HERNÁNDEZ,Emilia P.; FLORES,Gustavo E..
This contribution brings information on the type specimens of Coleoptera Tenebrionoidea deposited at the entomological collection of the Museo de La Plata (MLP). They belong to 29 species or subspecies of the families Aderidae (1 sp.), Anthicidae (11 spp.), Mordellidae (1 sp.), Oedemeridae (1 sp.), Rhipiphoridae (2 spp., 1 subsp.) and T enebrionidae of the subfamilies Alleculinae (3 spp.), Pimeliinae (5 spp., 2 subspp.) and Tenebrioninae (2 spp.). These types correspond to species described by the specialists C. Berg, C. Bruch, L. Fairmaire, M. Manfrini de Brewer, M. Pic, F. G. Werner and G. Flores. For each species we provide original and valid names, bibliographic reference, category of types, number assigned in the entomological collection of the MLP,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Museo de La Plata; Tenebrionoidea; Type material.
Ano: 2017 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802017000200004
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A catalogue of Cephalotini ant types (Hymenoptera: Formicidae: Myrmicinae) deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil Pap. Avulsos de Zool. (São Paulo)
Prado,Lívia P.; Brandão,Carlos Roberto F..
The Hymenoptera laboratory of the Museu de Zoologia da Universidade de São Paulo (MZSP) houses one of the most representative collections of Neotropical ants worldwide. This is due to the wide geographical distribution of its specimens, and also because of the comparatively large number of types and taxa represented. The catalogue, following the general recommendations of the International Code of Zoological Nomenclature, lists types of the tribe Cephalotini deposited in the collection of MZSP; also providing information regarding labels, original publications, state of conservation of specimens, taxonomic status of listed species, and their current classification when different from the original. An index for the listed taxa is also provided. In total,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Catalogue; Hymenoptera; Ant Types; Cephalotini; MZSP.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492013002000001
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A catalogue of the Pseudomyrmecinae ants type specimens (Hymenoptera, Formicidae) deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil Pap. Avulsos de Zool. (São Paulo)
Brandão,Carlos Roberto F.; Esteves,Flávia A.; Prado,Lívia P..
This catalogue lists the type specimens of 37 species of Pseudomyrmecinae ants deposited in the Hymenoptera Formicidae collection of the Museu de Zoologia da Universidade de São Paulo, which holds types of the only two genera that occur in the Neotropics, Pseudomyrmex Lund and Myrcidris Ward. We record the label information, condition of the specimens, nomenclatural changes, type status, and provide an index of the listed taxa.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hymenoptera; Formicidae; Ants; Types; MZUSP; Pseudomyrmecinae; Myrcidris; Pseudomyrmex.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492010004500001
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A catalogue of the type specimens of Heteroptera (Insecta) housed at the Instituto Fundación Miguel Lillo (Tucumán, Argentina) Rev. Soc. Entomol. Argent.
MELO,María C.; ZAMUDIO,María P.; DELLAPÉ,Pablo M..
This catalogue contains information about the type material of the suborder Heteroptera housed at the Entomological Collection of the Instituto Fundación Miguel Lillo (IFML-Tucumán, Argentina). We listed 60 holotypes and 453 paratypes belonging to 20 families, and three species and one subspecies that were not found in the collection but, according the original description, should be deposited in IFML. Finally, we listed 15 species that are labeled and coded as types but that are no part of the original type series. Nevertheless, they were included in this contribution because the associated information could be useful for future taxonomic research.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Heteroptera; Holotype; Instituto Fundación Miguel Lillo; Paratype.
Ano: 2018 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802018000200001
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A catalogue of the type specimens of the family Buprestidae (Insecta: Coleóptera) housed at the "Museo of La Plata", Argentina Rev. Soc. Entomol. Argent.
LANTERI,Analía A; HERNÁNDEZ,Emilia P.
We provide information on the type specimens of Neotropical species of Buprestidae (Coleoptera: Buprestoidea) deposited at the Museo de La Plata (MLP). Among them, there are syntypes of 45 species of J. Obenberger, and syntypes, holotypes or paratypes of species described by C. Berg, A. Cobos and Ch. Kerremans, plus lectotypes and paralectotypes designated based on syntypes of Obenberger' species. Besides, we compiled a list of 37 species which specimens are labeled as types (metatypes or homotypes), but in fact these specimens were compared with the types by the authors of the species (e.g. C. Burmeister, J. Obenberger, Ch. Kerremans). Moreover, we provide information on missing types (formerly at the MLP but not in the collection at present) and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Type material. Buprestidae. Museo de La Plata. Obenberger.
Ano: 2017 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802017000100004
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