|
|
|
| Registros recuperados: 13.807 | |
|
|
| Domenico P. R. O. F. Fuoco. |
| In order to study and develop an economic solution to environmental pollution in water, a wide variety of materials were investigated. Natural zeolites emerge from that research as the best in class of this category. Zeolites are natural materials relatively abundant and non biodegradable, economic and good to perform processes of environmental remediation. This paper contains a full description of a new method to characterize superficial properties of natural zeolites of exotic provenience (Caribbean Islets) with atomic force microscopy (AFM). AFM works with the optical microscope simplicity and the high resolution typical of a transmission electron microscope (TEM). Structural information of mesoporous material is obtained using scanning and transmission... |
| Tipo: Manuscript |
Palavras-chave: Chemistry. |
| Ano: 2012 |
URL: http://precedings.nature.com/documents/6828/version/1 |
| |
|
|
| Mahesh Satwekar; Abhijeet Satwekar. |
| Acute and chronic progression of injury to the kidney leads to the failure of the renal system and has become an increasingly important cause of morbidity and mortality. Present diagnosis detects the condition only after irreversible loss of 70 percent of kidney function. Current research is focused only on the clinical manifestations after the kidney injuries and not towards the exact cause of the condition. Here we propose a new outlook- that there is an involvement of a pathogen in the pathogenesis of kidney injuries. Basis for our proposal is given by the similarity of the pathogenesis events occurring between a classical example of hepatitis and kidney injuries. Furthermore, literature regarding the role of early kidney injury biomarkers in innate... |
| Tipo: Manuscript |
Palavras-chave: Biotechnology; Immunology; Microbiology. |
| Ano: 2012 |
URL: http://precedings.nature.com/documents/7021/version/1 |
| |
|
| |
|
|
| Loeb,Marina V.. |
| Anchoviella juruasanga is described from the drainages of rios Negro, Madeira, Tapajós, Trombetas, Tocantins, and Jari, in the Amazon basin, Brazil. The new species is distinguished from its congeners by having a short upper jaw, with its posterior tip extending between the verticals through anterior and posterior margins of the pupil (vs. posterior tip of upper jaw extending beyond the vertical through posterior margin of the pupil). Anchoviella juruasanga is also distinct from other strictly freshwater Amazonian species of the genus by the distance from tip of snout to posterior end of upper jaw between 8 and 11% in standard length (vs. 14% or more in A. alleni, A. carrikeri, A. guianensis, and A. jamesi). The anal-fin origin slightly posterior to or at... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anchovies; Engraulinae; Freshwater fish; Systematics; Taxonomy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000100002 |
| |
|
|
| Dong, S.Y.; Mujahidin; Wei, L.L.; Chao, Y.S.. |
| A new species, Asplenium riswanii (sect. Thamnopteris), is described from Central Java and West Papua, Indonesia. It is distinct from any known species by having thick and rigid fronds, abaxially keeled midribs, broadly lanceolate scales, and distantly spaced sori. Morphologically, A. riswanii is not similar to any species from Malesia but somewhat close to A. antrophyoides from mainland Southeast Asia. Molecular data reveal it has an isolated position in the phylogeny. The micromorphology of spores and leaf epidermis of A. riswanii is also documented and a key to the species of Asplenium sect. Thamnopteris from Malesia is given. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Bird-nest fern; Malesia; Morphology; Taxonomy. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/525143 |
| |
|
|
| Bravo,Freddy; Barata,Ricardo Andrade. |
| Nine Neotropical species of Bruchomyia Alexander, 1920 have been previously described, all from South America. A new species of this rare genus, collected in caverns of the state of Minas Gerais, southeastern Brazil, is described and named Bruchomyia mineira sp. nov. The new species is morphologically similar to B. argentina Alexander, 1920, but they can be differentiated from each other by characters of the eyes, M2 vein and base of gonostylus. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bruchomyiinae; Moth flies; Neotropical region; Psychodidae; Taxonomy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000500009 |
| |
|
|
| Gualda-Barros,Juliana; Nascimento,Fabio Oliveira do; Amaral,Marilia Kerr do. |
| A new species of titi monkey, genus Callicebus Thomas, 1903, is described based on four individuals, one from a small tributary of the left bank of Rio Teles Pires, northern state of Mato Grosso, and three others from Largo do Souza, Rio Iriri, Pará, Brazil. The new species belongs to the Callicebus moloch species group, and the main diagnostic characteristics of the new species are the whitish forehead, sideburns and beard coloration, which are contiguous, forming a frame around the blackish face; overall body pelage coloration is pale grayish-brown agouti; hands, feet and tip of the tail whitish; belly and inner sides of fore and hind limbs uniformly orange. The pattern of pelage coloration and qualitative and quantitative skull morphology are described... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Callicebus; New species; Callicebus moloch group; Brazil. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492012002300001 |
| |
|
| |
|
| |
|
| |
|
|
| Haseyama,Kirstern L.F.; Carvalho,Claudio J.B. de. |
| We describe a new species of Cyrtoneuropsis Malloch, 1925 (Diptera, Muscidae) from Brazil. The new species is included in a previously published key to species. Additionally, we review a previously published matrix to Cyrtoneurina Giglio-Tos, 1893 and Cyrtoneuropsis. A total of 52 character states were modified and the new species was added to it. The modified matrix was analyzed under equal and implied weights. In all topologies, Cyrtoneuropsis spiloptera (Wiedemann, 1830) came up as the sister group of the new species. The monophyly of Cyrtoneurina and Cyrtoneuropsis were recovered, but the relationships among their species, in our data, differ from those obtained in the past. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphological characters; Neotropical; Species key; Taxonomy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702012000600006 |
| |
|
| |
|
| |
|
| |
|
|
| Gama Junior,Watson Arantes; Azevedo,Maria Teresa de Paiva; Komárková-Legnerová,Jaroslava; Sant'anna,Célia Leite. |
| The Brazilian Atlantic Rainforest is a highly heterogeneous ecosystem comprising large numbers of tropical and subtropical habitats favorable to the development of cyanobacteria. Studies on cyanobacteria in this ecosystem are still rare, however, especially those involving unicellular and colonial types. The high biodiversity and endemism of this biome has been extremely impacted and fragmented, and less than 10% of its original vegetation cover remains today. We describe here a new species of a colonial cyanobacteria, Lemmermanniella terrestris, found on dry soils in a subtropical region of the Atlantic Rainforest in the municipality of Cananéia in southern São Paulo State, Brazil. This new taxon demonstrated all of the diacritical features of the genus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chroococcales; Lemmermanniella terrestris; Terrestrial habitat. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042012000400005 |
| |
|
|
| Britski,Heraldo A.; Birindelli,José Luís O.; Garavello,Julio Cesar. |
| Leporinus obtusidens Valenciennes, 1837 and L. elongatus Valenciennes, 1850 are redescribed based on the type specimens, including those of their junior synonyms, and recently collected specimens. Leporinus obtusidens is considered to be widespread, occuring in the river drainages of La Plata, São Francisco, and Parnaíba. Leporinus aguapeiensis Campos, 1945, described from the upper Rio Paraná, and L. silvestrii Boulenger, 1902, described from the Rio Paraguay, are considered junior synonyms of L. obtusidens. Leporinus elongatus is endemic to the Rio Jequitinhonha and Rio Pardo, two eastern Brazilian river basins, and the locality cited for the lectotype, Rio São Fransico, likely to be erroneous. Leporinus crassilabris Borodin, 1929, and L. crassilabris... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anostomoidea; Ostariophysi; Systematics; Taxonomy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492012021700001 |
| |
|
| |
|
|
| Henriques-Oliveira,Ana Lucia; Spies,Márcia Regina; Dumas,Leandro Lourenço. |
| The Neotropical subgenus Notalina (Neonotalina) Holzenthal, 1986 has ten described species in two species groups: brasiliana, formed by seven species from Southeastern Brazilian and Goiás State; and roraima, represented by three species from the Amazonian and Andes regions. In this paper, a new species of Notalina is described and illustrated from specimens collected in the Mantiqueira mountain range, Southeastern Brazil. The new species belongs to the brasiliana group and is easily recognized by the poorly developed dorsomesal and ventrolateral processes and the pair of mound-like protuberances located mesolaterally on abdominal segment X, and by the robust, rounded mesoventral processes and long digitate mesodorsal processes of the inferior appendages. A... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Forest; Neotropical; Hudsonemini; New species; Identification key. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000400014 |
| |
|
| |
| Registros recuperados: 13.807 | |
|
|
|
