Results 221 to 230 of about 1,560,090 (269)
Some of the next articles are maybe not open access.
Nature, 2002
Plant stem cells, contained in specialized structures called meristems, have amazing regenerative powers. They enable plants to grow and produce new organs throughout lifetimes that can span hundreds of years.
Weigel, D. ; https://orcid.org/0000-0002-2114-7963 +1 more
openaire +2 more sources
Plant stem cells, contained in specialized structures called meristems, have amazing regenerative powers. They enable plants to grow and produce new organs throughout lifetimes that can span hundreds of years.
Weigel, D. ; https://orcid.org/0000-0002-2114-7963 +1 more
openaire +2 more sources
Pancreatology, 2007
In this issue, 'Pancreatology and the Web' focuses on stem cell research, one of the 21st century's most exciting areas of science. Stem cell research has been advancing our knowledge about how an organism develops from a single cell and how healthy cells replace damaged cells in adult organisms.
openaire +2 more sources
In this issue, 'Pancreatology and the Web' focuses on stem cell research, one of the 21st century's most exciting areas of science. Stem cell research has been advancing our knowledge about how an organism develops from a single cell and how healthy cells replace damaged cells in adult organisms.
openaire +2 more sources
The Lancet, 2005
Stem cells derived from adult and embryonic sources have great therapeutic potential, but much research is still needed before their clinical use becomes commonplace. There is debate about whether adult stem cells can be used instead of those derived from embryos.
A, Vats +4 more
openaire +2 more sources
Stem cells derived from adult and embryonic sources have great therapeutic potential, but much research is still needed before their clinical use becomes commonplace. There is debate about whether adult stem cells can be used instead of those derived from embryos.
A, Vats +4 more
openaire +2 more sources
2015
New technologies have had a major impact on the mapping of the brain stem. Gene expression and inducible genetic fate mapping have revealed the presence of a segmental organization, which includes two midbrain segments, the isthmus, and 11 rhombomeres. The cerebellum has been shown to be an outgrowth of the isthmus and the first rhombomere.
Watson, Charles, Ullmann, Jeremy
openaire +3 more sources
New technologies have had a major impact on the mapping of the brain stem. Gene expression and inducible genetic fate mapping have revealed the presence of a segmental organization, which includes two midbrain segments, the isthmus, and 11 rhombomeres. The cerebellum has been shown to be an outgrowth of the isthmus and the first rhombomere.
Watson, Charles, Ullmann, Jeremy
openaire +3 more sources
Journal of Ultrastructure Research, 1984
It is particularly appropriate for this Journal to devote one of its issues to the subject of the scanning transmission electron microscope (STEM) and its uses because the initial stimulus for its invention was precisely the problem of discerning ultrastructural details in biological material.
openaire +2 more sources
It is particularly appropriate for this Journal to devote one of its issues to the subject of the scanning transmission electron microscope (STEM) and its uses because the initial stimulus for its invention was precisely the problem of discerning ultrastructural details in biological material.
openaire +2 more sources
The Stemness of Perinatal Stem Cells
2019Perinatal tissues provide a list of new sources for stem cell derivation, such as amniotic fluid, fetal membranes (amnion and chorion), umbilical cord, and placental tissue. The perinatal stem cells represent an intermediate cell type which has recently been described to combine qualities of both adult stem cell and ESCs and possess a broad multipotent
Yan Zhang, Zongjin Li, Na Liu
openaire +1 more source
1995
Abstract In PIE there were consonant stems ending with -r- (paradigms given in 283). Masc. and fem. nouns thus formed are attested in all varieties of IE. Neut. inflection is more fugitive. In lndic, the reflex of the nomenagentis suffix “-tor builds a kind of future participle (555); a few neut.
openaire +1 more source
Abstract In PIE there were consonant stems ending with -r- (paradigms given in 283). Masc. and fem. nouns thus formed are attested in all varieties of IE. Neut. inflection is more fugitive. In lndic, the reflex of the nomenagentis suffix “-tor builds a kind of future participle (555); a few neut.
openaire +1 more source
Computer, 2014
Are we really facing a STEM crisis? Or is this crisis as bogus as the missile gap that started the space race over 50 years ago? It's time to cut through the hyperbole and take a hard look.
openaire +1 more source
Are we really facing a STEM crisis? Or is this crisis as bogus as the missile gap that started the space race over 50 years ago? It's time to cut through the hyperbole and take a hard look.
openaire +1 more source
Differentiation, 2005
This essay is focused on a specific line of research toward regenerative therapies that is based on the use of embryonic stem cells but tries to avoid cloning techniques that are the heart of current ethical debates.
openaire +2 more sources
This essay is focused on a specific line of research toward regenerative therapies that is based on the use of embryonic stem cells but tries to avoid cloning techniques that are the heart of current ethical debates.
openaire +2 more sources
New England Journal of Medicine, 1978
Blood cells, like blossoms of a floribunda, arise together from a single branch. Clinicians have long assumed that granulocytes, megakaryocytes and erythroid cells have a common origin because all three cell lines may be involved to a varying degree in the many forms of myeloproliferative disease.
openaire +2 more sources
Blood cells, like blossoms of a floribunda, arise together from a single branch. Clinicians have long assumed that granulocytes, megakaryocytes and erythroid cells have a common origin because all three cell lines may be involved to a varying degree in the many forms of myeloproliferative disease.
openaire +2 more sources