| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Pantanal. |
|
Data corrente: |
08/06/1995 |
|
Data da última atualização: |
08/06/1995 |
|
Autoria: |
BIGHAM, J. M.; GOLDEN, D. C.; BOWENS, L. H.; BUOL, S. W.; WEED, S. B. |
|
Título: |
Iron oxide mineralogy of well-drained ultisols and oxisols: I. Characterization of iron oxides in soils clays by Mossbauer spectroscopy, X-ray diffractometry, and selected chemical techniques. |
|
Ano de publicação: |
1978 |
|
Fonte/Imprenta: |
Soil Science Society of American Journal, v.42, n.5, p.816-824, 1978. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The iron oxides in subsoil clays (<0.2 um) from five North Carolina Ultisols and two Brazilian Oxisols were analyzed by Mossbauer spectroscopy, X-ray diffractometry, and selected chemical techniques. Goethite and hematite were identified as the dominant crystalline iron oxides in these clays. Partial substitution of AI(III) or other nonmagnetic ions for Fe(III) in the oxide structures caused reduced unit cell dimensions and subnormal effective internal magnetic fields. All samples exhibited strong superparamagnetic relaxatgion, a collapse of the Mossbauer magnetic splitting at ambient temperatures due to the ultrafine size of the oxide particles. Neglible amounts of iron were solubilized with acid ammonium oxalate; however, the Ultisol clays did contain significant amounts of silicate and/or interlayer iron that was not extractable with dithionite-citrate-bicarbonate. |
|
Palavras-Chave: |
Aluminous goethite; Mossbauer effect; Nuclear gamma resonance. |
|
Thesagro: |
Solo. |
|
Thesaurus Nal: |
hematite; soil. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01658naa a2200241 a 4500
001 1784429
005 1995-06-08
008 1978 bl --- 0-- u #d
100 1 $aBIGHAM, J. M.
245 $aIron oxide mineralogy of well-drained ultisols and oxisols$bI. Characterization of iron oxides in soils clays by Mossbauer spectroscopy, X-ray diffractometry, and selected chemical techniques.
260 $c1978
520 $aThe iron oxides in subsoil clays (<0.2 um) from five North Carolina Ultisols and two Brazilian Oxisols were analyzed by Mossbauer spectroscopy, X-ray diffractometry, and selected chemical techniques. Goethite and hematite were identified as the dominant crystalline iron oxides in these clays. Partial substitution of AI(III) or other nonmagnetic ions for Fe(III) in the oxide structures caused reduced unit cell dimensions and subnormal effective internal magnetic fields. All samples exhibited strong superparamagnetic relaxatgion, a collapse of the Mossbauer magnetic splitting at ambient temperatures due to the ultrafine size of the oxide particles. Neglible amounts of iron were solubilized with acid ammonium oxalate; however, the Ultisol clays did contain significant amounts of silicate and/or interlayer iron that was not extractable with dithionite-citrate-bicarbonate.
650 $ahematite
650 $asoil
650 $aSolo
653 $aAluminous goethite
653 $aMossbauer effect
653 $aNuclear gamma resonance
700 1 $aGOLDEN, D. C.
700 1 $aBOWENS, L. H.
700 1 $aBUOL, S. W.
700 1 $aWEED, S. B.
773 $tSoil Science Society of American Journal$gv.42, n.5, p.816-824, 1978.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pantanal (CPAP) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Unidades Centrais. |
|
Data corrente: |
19/10/2018 |
|
Data da última atualização: |
19/10/2018 |
|
Autoria: |
SILVA-FILHO, O. F.; PESSOA, G. T.; SOUSA, F. C. A.; RODRIGUES, R. P. S.; MOURA, L. S.; AMBRÓSIO, C. E.; SILVA, A. B. S.; ALVES, F. R. |
|
Afiliação: |
Osmar F. Silva-Filho, Pós-Graduação em Ciência Animal/Universidade Federal do Piauí - UFPI; Gerson T. Pessoa, Médico Residente do Serviço de Diagnóstico por Imagem/Hospital Veterinário Universitário/Universidade Federal do Piauí - UFPI; Francisco C. A. Sousa, Departamento de Medicina/Universidade Estadual do Piauí - Uespi; Renan P. S. Rodrigues, Pós-Graduação em Ciência Animal/Universidade Federal do Piauí - UFPI; Laecio S. Moura, Pós-Graduação em Ciência Animal/Universidade Federal do Piauí - UFPI; Carlos E. Ambrósio, Pós-Graduação em Ciência Animal/Universidade Federal do Piauí - UFPI; Andrezza B. S. Silva, Pós-Graduação em Ciência Animal/Universidade Federal do Piauí - UFPI; Flávio R. Alves, Departamento de Morfofisiologia/Centro de Ciências Agrárias/Universidade Federal do Piauí - UFPI. |
|
Título: |
Assessment of the vertebral heart scale and cardiothoracic ratio to standardize the heart size of collared peccaries (Tayassu tajacu Linnaeus, 1758) restrained with ketamine and midazolam. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Brasília, DF, v. 38, n 8, p. 1705-1711, agosto 2018 |
|
Idioma: |
Inglês |
|
Notas: |
Título em português: Avaliação do vertebral heart scale e índice cardiotorácico na padronização do tamanho cardíaco de cateto (Tayassu tajacu Linnaeus, 1758) contidos com cetamina e midazolam. |
|
Conteúdo: |
Wild species, especially those threatened with extinction, are increasingly being investigated to obtain information that can be useful for their preservation. The objective of the present study was to standardize the vertebral heart scale (VHS) and cardiothoracic ratio (CTR) of the collared peccary (Tayassu tajacu Linnaeus, 1758) sedated with ketamine and midazolam. Fourteen clinically healthy collared peccaries were examined in the two?year age group weighing 15-22kg. The animals were submitted to digital radiography of the thorax in lateral and dorsal ventral projections to calculate the VHS and CTR. The VHS mean values for males and females was 8.88±0.51v for right recumbency and 8.84±0.39v for left decubitus, and there were no significant between-gender differences regarding recumbency (p>0.05). The CTR showed mean values of 0.50±0.05 (males) and 0.45±0.04 (females), but the gender-differences were not significant (p>0.05). A positive correlation was shown between VHS and CTR (r=0.98, right decubitus; r=0.96, left decubitus). Establishing reference values for heart measurements in collared peccaries using digital radiography of the thorax permitted standardization of the VHS and CTR values for this wild species. In the studied wild animal model, the VHS and CTR heart assessment indexes were shown to be essential diagnostic tools for investigations of alterations in the size of the cardiac silhouette. |
|
Palavras-Chave: |
Caititus; Cardiothoracic ratio; Cetamina; Collared peccaries; Índice cardiotorácico; Midazolam; Tamanho cardíaco; Vertebral heart scale. |
|
Thesagro: |
Tayassu Tajacu. |
|
Thesaurus NAL: |
Ketamine. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/184779/1/Assessment-of-the-vertebral-heart-scale.pdf
|
|
Marc: |
LEADER 02717naa a2200337 a 4500
001 2097817
005 2018-10-19
008 2018 bl uuuu u00u1 u #d
100 1 $aSILVA-FILHO, O. F.
245 $aAssessment of the vertebral heart scale and cardiothoracic ratio to standardize the heart size of collared peccaries (Tayassu tajacu Linnaeus, 1758) restrained with ketamine and midazolam.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Avaliação do vertebral heart scale e índice cardiotorácico na padronização do tamanho cardíaco de cateto (Tayassu tajacu Linnaeus, 1758) contidos com cetamina e midazolam.
520 $aWild species, especially those threatened with extinction, are increasingly being investigated to obtain information that can be useful for their preservation. The objective of the present study was to standardize the vertebral heart scale (VHS) and cardiothoracic ratio (CTR) of the collared peccary (Tayassu tajacu Linnaeus, 1758) sedated with ketamine and midazolam. Fourteen clinically healthy collared peccaries were examined in the two?year age group weighing 15-22kg. The animals were submitted to digital radiography of the thorax in lateral and dorsal ventral projections to calculate the VHS and CTR. The VHS mean values for males and females was 8.88±0.51v for right recumbency and 8.84±0.39v for left decubitus, and there were no significant between-gender differences regarding recumbency (p>0.05). The CTR showed mean values of 0.50±0.05 (males) and 0.45±0.04 (females), but the gender-differences were not significant (p>0.05). A positive correlation was shown between VHS and CTR (r=0.98, right decubitus; r=0.96, left decubitus). Establishing reference values for heart measurements in collared peccaries using digital radiography of the thorax permitted standardization of the VHS and CTR values for this wild species. In the studied wild animal model, the VHS and CTR heart assessment indexes were shown to be essential diagnostic tools for investigations of alterations in the size of the cardiac silhouette.
650 $aKetamine
650 $aTayassu Tajacu
653 $aCaititus
653 $aCardiothoracic ratio
653 $aCetamina
653 $aCollared peccaries
653 $aÍndice cardiotorácico
653 $aMidazolam
653 $aTamanho cardíaco
653 $aVertebral heart scale
700 1 $aPESSOA, G. T.
700 1 $aSOUSA, F. C. A.
700 1 $aRODRIGUES, R. P. S.
700 1 $aMOURA, L. S.
700 1 $aAMBRÓSIO, C. E.
700 1 $aSILVA, A. B. S.
700 1 $aALVES, F. R.
773 $tPesquisa Veterinária Brasileira, Brasília, DF$gv. 38, n 8, p. 1705-1711, agosto 2018
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
