Báo cáo y học: "On the nature of thumbs" docx

... teaches us a number of important lessons about the evolution of gene regulation. One is that, at least in the case of Hox genes, the inherent asymmetry in the physical arrangement of the genes leads ... a pattern of correlated morphological variation in the evolution of elements of the forelimbs of the Anthropoidea (the monkeys, a group showing plenty of ev...

Ngày tải lên: 14/08/2014, 08:20

... by means of the maximum entropy method for Si-NCs produced by laser pyrolysis of silane [11]. There fore, it is worth investigating the evolution of such distributions also in the case of other ... in the case of stretched exponent ial relaxat ion function, the PL decay may be analyzed more thoroughly by recovering the distri- bution of recombination rates [10]. Surpri...

Ngày tải lên: 21/06/2014, 06:20

... can only be understood by inquiring into the nature of technology and the human minds that wield it. Timescales There is an anthropologic perspective on the evolution of technology. One way to ... in old age and for the benefit of offspring. The personal timescale stretches the evolutionary limits of the average human mind. The vast majority of people are incapable...

Ngày tải lên: 12/08/2014, 23:20

... after the description of the VS formed by HTLV-1 [7], this concept has been widely explored in the study of HIV infection. Initial work defined the structure of HIV-induced VS, in which the viral ... particles, they support early events of HIV infection that can be measured by quantifying the amount of newly synthesized HIV DNA by real-time PCR [14,21]. The comparison...

Ngày tải lên: 12/08/2014, 23:22

... sample of the mosaicism originally present throughout the early embryo. To the contrary, if the correlation between somatic and germline mosaicism is weak, the number of FGCs must be limited and the ... excluded from the analysis. The solid line represents the expected number of oocytes at each age in the postembryonic stages based on the model given these data....

Ngày tải lên: 13/08/2014, 23:20

... on the role of Pax6 in embryonic and adult rat neurogenesis in a study of the func- tion of one of its downstream genes, FABP7, which they identified by microarray analysis. FABP7 is a fatty-acid- binding ... already acquire laminar fate information in the ventricular zone or whether they need to reach the mar- ginal zone to acquire their laminar fate identity. Kazunori Nakaji...

Ngày tải lên: 14/08/2014, 07:22

... modification of appropriate tRNAs and the aminoacyl-tRNA synthetase mol- ecules that charge them (see [29] and references therein). Most directly of all, the discovery of a 22nd encoded amino acid, pyrrolysine, ... selenocysteine aminoacyl-tRNA synthetase that charges an appropriate tRNA; rather, serine aminoacyl- tRNA synthetase charges tRNA Sec with (canonical) serine [25]. Enzym...

Ngày tải lên: 14/08/2014, 16:20

... two-tail). Contribution of the length of the main ORF versus the presence of uORFs to the translation state of mRNAsFigure 10 Contribution of the length of the main ORF versus the presence of uORFs to the translation ... until it encounters the main AUG codon. Thereby the efficiency of re-initiation can control the effi- ciency of initiation at the m...

Ngày tải lên: 14/08/2014, 20:22

... the content of secondary structure only after the disruption of the native tertiary structure of RNase A (Figs 2–4). Interestingly, the preservation of the tertiary structure coincides with the ... hydro- chloride (GdnHCl), urea or elevated temperatures, they destroy the tertiary structure of proteins which results in the loss of enzymatic activity. Regarding the...

Ngày tải lên: 22/02/2014, 07:20

... Investiga- tors) at New York City/Bronx Consortium (Kathryn Anastos); Brooklyn, NY (Howard Minkoff); Washington DC Metropolitan Consortium (Mary Young); The Connie Wofsy Study Consortium of Northern California ... initiating HAART, especially for those individuals at their early stage of HIV disease, to maximize their quality of life. The propensity score method has been widely ap...

Ngày tải lên: 10/08/2014, 05:20