Artículos de revistas: Recent submissions
Now showing items 4341-4360 of 4968
-
(GEORG THIEME VERLAG KG, 2010-10)Two new diterpenoids, mulin-12-en-16-al-20-oic acid and 13-alpha-hydroxy-mulin-11-en-14-one-20-oic acid, were isolated from Azorella madreporica. Their structures were identified on the basis of one-dimensional and ...
-
(American Society of Mammalogists, 2008-07-22)Brachydelphis mazeasi Muizon, 1988a, from the Pisco Formation (middle Miocene, Peru), is an odontocete originally known from 2 incomplete skulls and a few associated postcranial elements, assigned to the family Pontoporiidae, ...
-
(WILEY-BLACKWELL, 2009-03)A highly conserved spatio-temporal pattern of cartilage formation reveals that the digits of the bird wing develop from positions that become digits 2, 3, and 4 in other amniotes. However, the morphology of the digits ...
-
(WILEY-LISS, DIV JOHN WILEY & SONS INC, 2009-07-25)The controversy surrounding the alleged Lamarckian fraud of Paul Kammerer’s midwife toad experiments has intrigued generations of biologists. A re-examination of his descriptions of hybrid crosses of treated and nontreated ...
-
(WILEY-BLACKWELL, 2009-11)Digit identity in the avian wing is a classical example of conflicting anatomical and embryological evidence regarding digit homology. Anatomical in conjunction with phylogenetic evidence supports the hypothesis that ...
-
(Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, 2008-12-22)Carotenoids are colored terpenes synthesized in plants, algae and some yeasts and bacteria. In plants and algae, these lipophilic molecules exert functional roles in hormone synthesis, photosynthesis, photomorphogenesis ...
-
(PUBLIC LIBRARY SCIENCE, 2009-11-24)The vomeronasal system (VNS) mediates pheromonal communication in mammals. From the vomeronasal organ, two populations of sensory neurons, expressing either Gai2 or Gao proteins, send projections that end in glomeruli ...
-
(ELSEVIER SCIENCE INC, 2009-07)CD4 CD25 Foxp3 regulatory T cells (Treg) mediate immunologic self-tolerance and suppress immune responses. In the gut, a subset of dendritic cells is specialized to induce Treg in a transforming growth factor- (TGF- ...
-
(AMER SOC MICROBIOLOGY, 2009-07-30)The acidophilic Acidithiobacillus ferrooxidans can resist exceptionally high copper (Cu) concentrations. This property is important for its use in biomining processes, where Cu and other metal levels range usually between 15 ...
-
(JOHN WILEY & SONS INC, 2009-03-28)Some archaea of the Euryarchaeota present a unique version of the Embden–Meyerhof pathway where glucose and fructose- 6-phosphate are phoshporylated using ADP instead of ATP as the phosphoryl donor. These are the only ...
-
(AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC, 2009-06-24)Some hyperthermophilic archaea use a modified glycolytic pathway that employs an ADP-dependent glucokinase (ADPGK) and an ADP-dependent phosphofructokinase (ADP-PFK) or, in the case of Methanococcus jannaschii, a ...
-
(GENETICS SOC AM, 2009-09-03)The Drosophila melanogaster wing is a model system for analyzing the genetic control of organ size, shape, and pattern formation. The formation of the wing involves a variety of processes, such as cell growth, proliferation, ...
-
(WILEY-LISS, DIV JOHN WILEY & SONS INC, 2009-04-15)The CSRNP (cystein-serine-rich nuclear protein) family has been conserved from Drosophila to human. Although knockout mice for each of the mammalian proteins have been generated, their function during vertebrate development ...
-
(ELSEVIER SCIENCE BV, 2008-11-28)Cell division rates and apoptosis sculpt the growing organs, and its regulation implements the developmental programmes that define organ size and shape. The balance between oncogenes and tumour suppressors modulate the ...
-
(CELL PRESS, 2009-03-27)Adaptation to endoplasmic reticulum (ER) stress depends on the activation of an integrated signal transduction pathway known as the unfolded protein response (UPR). Bax inhibitor-1 (BI-1) is an evolutionarily conserved ...
-
(AMER PHYSIOLOGICAL SOC, 2009-03-02)Delgado R, Bacigalupo J. Unitary recordings of TRP and TRPL channels from isolated Drosophila retinal photoreceptor rhabdomeres: activation by light and lipids. J Neurophysiol 101: 2372–2379, 2009. First published March ...
-
(BioMed Central, 2009-03-26)Background: Inorganic polyphosphate (polyP), a polymer of tens or hundreds of phosphate residues linked by ATP-like bonds, is found in all organisms and performs a wide variety of functions. PolyP is synthesized in ...
-
(AMER ASSOC IMMUNOLOGISTS, 2009-04-30)The acquired immune response begins with Ag presentation by dendritic cells (DCs) to naive T cells in a heterocellular cell-cell contact-dependent process. Although both DCs and T cells are known to express connexin43, a ...
-
(ELSEVIER SCIENCE BV, 2009-05-22)Escherichia coli phosphofructokinase-2 (Pfk-2) is a homodimer whose subunits consist of a large domain and an additional b-sheet that provides the interfacial contacts between the subunits, creating a b-barrel flattened-like ...
-
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2009-02-05)Nitric oxide regulates neurogenesis in the developing and adult brain. The olfactory epithelium is a site of neurogenesis in the adult and previous studies suggest a role for nitric oxide in this tissue during development. We ...
