Results 61 to 70 of about 146,925 (161)

RECONSTITUIÇÃO DO SISTEMA IMUNOLÓGICO HUMANO EM MODELO MURINO IMUNOSSUPRIMIDO

open access: yesHematology, Transfusion and Cell Therapy
Objetivos: Padronizar o processo de humanização do sistema imune de camundongos imunodeficientes da linhagem NSG, utilizando células-tronco hematopoéticas CD34+.
MS Cavalcante   +9 more
doaj   +1 more source

Histologia e caracterização histoquímica do tubo gastrintestinal de Pimelodus maculatus (Pimelodidae, Siluriformes) no reservatório de Funil, Rio de Janeiro, Brasil Histology and histochemical characterization of the digestive tract of Pimelodus maculatus (Pimelodidae, Siluriformes) in Funil reservoir, Rio de Janeiro, Brazil

open access: yesIheringia: Série Zoologia, 2007
As estruturas teciduais do trato gastrintestinal de Pimelodus maculatus La Cepède, 1803, do reservatório de Funil (22º30'-22º35'S; 44º35'- 44º40'W) foram descritas através das técnicas de hematoxilina-eosina (HE), tricômico Gomori, ácido Periódico de ...
Clarice M. Santos   +5 more
doaj   +1 more source

A quantitative analysis of the phytoplankton of the Gulf of Panama II. On the relationship between C14 assimilation and the diatom standing crop [PDF]

open access: yes, 1965
ENGLISH: The Inter-American Tropical Tuna Commission has maintained a hydro-biological station in the Gulf of Panama located at 8°45'N, 79°23'W in connection with their ecological investigation of the anchoveta (Cetengraulis mysticetus), a tuna baitfish (
Smayda, Theodore J.
core  

Environmental factors have a greater influence on photosynthetic capacity in C4 plants than biochemical subtypes or growth forms

open access: yesNew Phytologist, Volume 248, Issue 3, Page 1205-1224, November 2025.
Summary Our understanding of how photosynthetic capacity varies among C4 species and across growth and measurement conditions remains limited. We collated 1696 CO2 response curves of net CO2 assimilation rate (A/Ci curves) from C4 species grown and measured at various environmental conditions and used these data to estimate the apparent maximum ...
Yuzhen Fan   +29 more
wiley   +1 more source

Detection of parvovirus B19 infection in formalin-fixed and paraffin-embedded placenta and fetal tissues Detecção da infecção pelo parvovírus B19 em placenta e tecidos fetais fixados em formalina e embebidos em parafina

open access: yesRevista do Instituto de Medicina Tropical de São Paulo, 2007
Parvovirus B19 infection was first discovered in 1975 and it is implicated in fetal death from hydrops fetalis the world over. Diagnosis is usually made through histological identification of the intranuclear inclusion in placenta and fetal organs ...
Paulo Roberto Veiga Quemelo   +3 more
doaj   +1 more source

History of Neuroscience: Mesoglia and Microglia [PDF]

open access: yes, 2007
Microglia are mononuclear phagocytes that reside within the central nervous system (CNS). They differ from macroglia (astrocytes and oligodendrocytes) in terms of their origin, phenotype and functions, but more closely resemble tissue-resident ...
Rezaie, Payam
core  

A Long‐Standing Taxonomic Puzzle: Species Delimitation and Phylogenetic Analysis Reveal New Findings in Neogoniolithon (Spongitidaceae, Corallinophycidae and Rhodophyta) From the Southwestern Atlantic

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 10, October 2025.
ABSTRACT In the first study on Neogoniolithon species for the Southwestern Atlantic Ocean, based on both molecular (COI‐5P, psbA and SSU rDNA) and morpho‐anatomical data, three taxa were identified for the Brazilian coast, including two new species. DNA‐based species delimitation methods distinguished Neogoniolithon crypticum sp. nov.
Priscila Jesus   +5 more
wiley   +1 more source

Caso para diagnóstico Case for diagnosis

open access: yesAnais Brasileiros de Dermatologia, 2011
Paciente do sexo masculino de 55 anos com placas e nódulos infiltrados exuberantes em membro inferior esquerdo há seis meses. Cardiopatia, nefropatia e endocrinopatia associadas.
Cristina Paula Salaro, Georgi Tchernev
doaj   +1 more source

Gene delivery to neural stem cells using minicircles and plasmids without CpG motifs [PDF]

open access: yes, 2011
Tese de mestrado. Biologia (Biologia Celular e Biotecnologia). Universidade de Lisboa, Faculdade de Ciências, 2011Neural Stem Cells (NSC) are multipotent stem cells, capable of proliferating and differentiating in vivo and in vitro into astrocytes ...
Reis, Mónica Sofia Correia dos, 1986-
core  

Guard‐cell expression of abscisic acid receptors for engineering water‐use‐efficient plants without trade‐offs in growth

open access: yesNew Phytologist, Volume 248, Issue 2, Page 690-705, October 2025.
Summary Abscisic acid (ABA) induces stomatal closure, reducing transpirational water loss, a critical adaptation for agriculture under drought. However, ABA is often viewed cautiously as stomatal closure limits CO2 uptake for photosynthesis and growth.
Jinghui Liu   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy