Báo cáo sinh học: "Small changes, big results: evolution of morphological discontinuity in mammals" pps

... of morphological discontinuity in mammalian evolution, containing animals as morphologically distinct as elephants and aardvarks. In a recent paper in BMC Biology, Asher and Lehmann [8] now provide clinching ... [26]. Separation of the digits in vertebrates involves programmed cell death of the interdigital mesenchyme. While this occurs in the bat hindlimb, it is inhibit...

Ngày tải lên: 06/08/2014, 18:21

... hor- mone-binding protein [15] (barbital inhibits binding of THs to transthyretin). Thus, the name was changed to ‘thyroxine-binding prealbumin’ (TBPA). A decade Fig. 1. Five classes of TH-binding proteins. The ... protein; RBP, retinol-binding protein; T3, 3¢,3,5- triiodo-[L]-thyronine; T4, 3¢,5¢,3,5,-tetraiodo-[L]-thyronine; TBG, thyroxine-binding globulin; TBPA, thyroxine-binding preal...

Ngày tải lên: 07/03/2014, 00:20

... Medicine in Guinea-Bissau, is not currently integrated in any Univer- sity, and offers a training programme supported by Cuban tutors. It was, at the time of the study, in its third year of training. The ... (students surveyed in Mozambique included participants in the seventh year of training, whereas in Guinea-Bissau the training had just reached its fourth year) (Table 2)...

Ngày tải lên: 18/06/2014, 17:20

... using a total of 161 protein sequences of UCP1-4 retrieved from GenBank, and aligned using Mafft v. 6.626 with the L-INS-i strategy. A final alignment of 281 positions was obtained after removing ambiguous ... dissipation of the proton gradient when non-shivering thermogenesis was required. Furthermore, the presence of a nucleotide-binding site in UCP1 was considered reminiscent...

Ngày tải lên: 06/08/2014, 19:20

... assortative mating. An interesting finding with BLUP selection is that the advantage of assortative mating over random mating is independent of initial heritability and family infor- mation ... of age groups as in the methods of Hopkins and James (1977) but of individuals by using the ancestral information in the numerator relationship matr...

Ngày tải lên: 09/08/2014, 18:21

... in favour of Pekin. In all cases it appears that a depressive effect on growth seems to be linked to the W chromosome of the Muscovy, relative to that of the Pekin. ... progeny. In both sexes of the progeny, the direct genetic effects for growth, from autosomal and sex-linked genes, were in favour of Pekin at WK4, and in favo...

Ngày tải lên: 09/08/2014, 18:22

... possible, leaving offspring for the next generation. A minimum number of inbreeding matings should be allowed. A maximum number of founder animals (ideally all of them) would ... would calculate the effective number of founders and the inbreeding coefficient of the hypothetical offspring of each possible populating couple. In this way, tho...

Ngày tải lên: 09/08/2014, 18:22

... alternative pathways of b-catenin activation in hepatoblastomas in our patient cohort. Figure 1 Immunohistochemical staining of HB using an antibody to b-catenin. (a) Cytoplasmic staining of b-catenin in hepatoblastoma. ... N-terminal serine an d thre onine residues by the APC/Axin/GSK3b protein complex resulting in it s ubiquitination and subsequent degrada- tion, thus maintain...

Ngày tải lên: 10/08/2014, 10:21

... running at 40% of all public expenditure for health at the district level in these districts [5]. Increasing the proportion of healthcare pro- viders who are PNS has the effect of increasing ... Unpublished] and the performance of the sector is inadequate [7]. In addition, the quality of care in Indonesia is low [8-10]. Merely increasing the total number of staff or the numb...

Ngày tải lên: 18/06/2014, 17:20

... self- mappings have recently been given in [28, 29] while the study of stability through fixed point theory of Caputo linear fractional systems has been provided in [30]. Finally, promising results ... being obtained concerning fixed point theory for multivalued maps (see, for instance [31–33]). This manuscript is devoted to the investigation of several modifications of ration...

Ngày tải lên: 18/06/2014, 22:20