Results 51 to 60 of about 18,358 (184)

Biosilicification in monocots: Comparative analysis highlights contrasting patterns of deposition

open access: yesAmerican Journal of Botany, Volume 112, Issue 7, July 2025.
Abstract Premise New insights into biomineral uptake and sequestration are important for understanding how plants grow. Some plants accumulate silica accretions in precise locations in particular cells. Among monocots, controlled biosilicification occurs in several different forms and is restricted to commelinids and orchids. Methods We utilized energy‐
Paula J. Rudall   +2 more
wiley   +1 more source

Complexity of the 5′ Untranslated Region of EIF4A3, a Critical Factor for Craniofacial and Neural Development

open access: yesFrontiers in Genetics, 2018
Repeats in coding and non-coding regions have increasingly been associated with many human genetic disorders, such as Richieri-Costa-Pereira syndrome (RCPS).
Gabriella S. P. Hsia   +12 more
doaj   +1 more source

Pesquisas com células-tronco: implicações éticas e jurídicas [PDF]

open access: yes, 2008
Divulgação dos SUMÁRIOS das obras recentemente incorporadas ao acervo da Biblioteca Ministro Oscar Saraiva do STJ. Em respeito à lei de Direitos Autorais, não disponibilizamos a obra na íntegra.
Nascimbeni, Asdrubal Franco
core  

Resolving the contrasting leaf hydraulic adaptation of C3 and C4 grasses

open access: yesNew Phytologist, Volume 245, Issue 5, Page 1924-1939, March 2025.
Summary Grasses are exceptionally productive, yet their hydraulic adaptation is paradoxical. Among C3 grasses, a high photosynthetic rate (Aarea) may depend on higher vein density (Dv) and hydraulic conductance (Kleaf). However, the higher Dv of C4 grasses suggests a hydraulic surplus, given their reduced need for high Kleaf resulting from lower ...
Alec S. Baird   +10 more
wiley   +1 more source

Efeito do óleo de copaíba na adesão de células e viabilidade de células-tronco mesenquimais

open access: yesRevista Thema, 2019
A oleorresina de copaíba é amplamente utilizada como medicamento tradicional pelos índios da Amazônia, por meio da administração oral e tópica. Este produto natural possui propriedades anti-microbianas, anti-inflamatórias, anti-tumorais e também ...
Daniela Guerra Lund   +5 more
doaj   +1 more source

Reflections on human embryo research: the debate in Portuguese ethics organizations [PDF]

open access: yes, 2013
Analisam-se os argumentos usados pelas organizações de ética portuguesas na regulação da investigação em embriões de origem humana. Recolheram-se documentos produzidos entre 2006 e 2010.
Alves, Bruno Rodrigues   +2 more
core   +3 more sources

The aerial epidermis is a major site of quinolizidine alkaloid biosynthesis in narrow‐leafed lupin

open access: yesNew Phytologist, Volume 245, Issue 5, Page 2052-2068, March 2025.
Summary Lupins are promising protein crops that accumulate toxic quinolizidine alkaloids (QAs) in the seeds, complicating their end‐use. QAs are synthesized in green organs (leaves, stems, and pods) and a subset of them is transported to the seeds during fruit development.
Karen Michiko Frick   +10 more
wiley   +1 more source

SLPI overexpression in hMSCs could be implicated in the HSC gene expression profile in AML

open access: yesScientific Reports
Acute myeloid leukaemia (AML) is a severe haematological neoplasm that originates from the transformation of haematopoietic stem cells (HSCs) into leukaemic stem cells (LSCs).
Pedro L. Azevedo   +5 more
doaj   +1 more source

Avaliação do potencial de diferenciação das células da polpa dentária de humanos [PDF]

open access: yes, 2010
TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Ciências Biológicas. Biologia.O desenvolvimento dentário ocorre através de interações sequenciais entre o epitélio oral e o mesênquima.
Beatriz Dal Pont, Duarte
core  

Writing a novel, chapter one: precedents and decision process in the Brazilian Supreme Court [PDF]

open access: yes, 2009
O artigo, por meio do estudo de casos exemplificativos, procura mostrar que um dos motivos para a falta de uma cultura de respeito aos precedentes judiciais no Supremo Tribunal Federal (STF), ou para a falta de um romance em cadeia (Dworkin), é a ...
CARDOSO, Evorah Lusci Costa   +2 more
core   +2 more sources

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