the invention of cell phones essay
Tài liệu Báo cáo khoa học: The central role of CDE/CHR promoter elements in the regulation of cell cycle-dependent gene transcription pdf
... promoters, mutation of the CHR leads to a more pronounced deregulation than the alteration of the CDE [40]. Another gene tested for its cell cycle regulation is the cellular inhibitor of apoptosis protein ... If the DREAM complex is the main regulator of CDE ⁄ CHR cell cycle genes, to which promoter sites does it bind during any par- ticular phase of the cell cycle? What is the exact mechanism of ... turns of the DNA double helix yields binding of the two or three NF-Y complexes on the same side of the DNA. Conservation of spacing is required for optimal pro- moter activity because changing the...
Ngày tải lên: 16/02/2014, 09:20
JOHN GREGORY AND THE INVENTION OF PROFESSIONAL MEDICAL ETHICS AND THE PROFESSION OF MEDICINE ppt
... for the History of Medicine, the University of Michi- gan, the University of Pittsburgh, the Cleveland Clinic, the New York Consortium for the History of Medicine at the New York Academy of Medicine, ... Universities of Aberdeen and Edinburgh; the Royal College of Physicians of Edinburgh; the Royal College of Surgeons of Edinburgh; the Royal College of Physicians and Surgeons of Glasgow; the National ... or the Conjunction, or finally the Chances, of experiment. None of these however extend so far as the invention of any axiom (Bacon, 1875c, p. 413). The investigator of nature goes about gathering...
Ngày tải lên: 07/03/2014, 04:20
The chart shows the number of mobile phones and landlines per 100 people in selected countries ppsx
Ngày tải lên: 07/07/2014, 12:20
Báo cáo sinh học: "The nature of cell-cycle checkpoints: facts and fallacies" docx
... specific for the different phases of the cell cycle and determine the targets of the kinases. Exit from each phase of the cell cycle occurs on degradation of the bound cyclin. The CDK-cyclin ... be generated. On the other hand, correction of the other type of erroneous attach- ments, merotelic, does not generate unattached kineto- chores - which is why the presence of merotelic attach- ments ... other pathways that respond to everything from the status of p53 or p38 to the integrity of the chromosomes and DNA catenation? First off, some of these claims fail to consider that multiple...
Ngày tải lên: 06/08/2014, 19:21
báo cáo khoa học: "PVP-coated silver nanoparticles block the transmission of cell-free and cell-associated HIV-1 in human cervical culture" ppsx
... to the upper chamber of the Transwell to evaluate inhibition of HIV-1 cell- associated transmission. Target cells (MT- 2) were added to the lower chambers. In the case of the MT-2 cells, half of ... transfer infection to the target cells that reside in the subepithelium [36], as evidenced by an absence of infection (absence of syncytia on indicator cells) on the lower chamber of the cervical model ... of the genital epithelium, therefore inactivating the ability of the HIV virus to reach the target cells that reside below. Thus, when the HIV virus crosses the genital epithelium, it is already...
Ngày tải lên: 11/08/2014, 00:22
Báo cáo y học: " Classic swine fever virus NS2 protein leads to the induction of cell cycle arrest at S-phase and endoplasmic reticulum stress" potx
... vein endothelial cell line (SUVEC) established in our lab previousl y [13] and increased the proportion of the cells in the S-phase with a concomitant decrease in the proportion of cells in the G0/G1 ... exists on the subcel- lular localization of CSFV NS2 protein and its effects on cell growth and cell cycle progression. The swine end othe lial vascular cell is o ne of the CSFV target cells, vascular ... cycle arrest at S-phase To determine whether the growth inhibition of CSFV NS2-expressing cells was due to the arrest of the cell cycle at a certain phase(s) of cell division, flow cyto- metric analysis...
Ngày tải lên: 12/08/2014, 04:21
Báo cáo y học: " On the steps of cell-to-cell HIV transmission between CD4 T cells" pptx
... open access of the HIV machinery to the cytoplasm of the target cells (Figure 1). However, the complete blockade of infection in the presence of fusion inhibitors rules out the existence of gp41-independent HIV ... across the VS. On the other hand, the transfer of membranes from NL4-3 and BaL infected MOLT cells to the MT-4 cell line is lower than that observed in pri- mary cells. Notably, only the transfer of ... of the transfer of mem- brane lipids from MOLT infected cells to target cells. Membrane transfer to single cells may be the consequence of either hemifusion events between cells [22], or the transfer...
Ngày tải lên: 12/08/2014, 23:22
Báo cáo y học: "Prior mucosal exposure to heterologous cells alters the pathogenesis of cell-associated mucosal feline immunodeficiency virus challenge" docx
... the baseline per- centage of the T -cell subset included as a covariate. For tissue sample results, the endpoints were the percentages of the T -cell subset in each of the five tissue sources (PLN, ... strains of HIV-1 [21]. Taken together, there is strong evidence that exposure to heterologous cells and allogenic material alters the sus- ceptibility of cells to lentiviral infection. However, whether ... understood. The role of cell exposure is particularly relevant when considering mucosal transmission. Not only is mucosa the major route of cell- free and cell- associated HIV-1 transmission [22-25], the...
Ngày tải lên: 13/08/2014, 01:20
Báo cáo y học: " A statistical approach to estimating the strength of cell-cell interactions under the differential adhesion hypothesis" pptx
Ngày tải lên: 13/08/2014, 16:21
The theory of financial intermediation: An essay on what it does (not) explain
... dynamic extension of the theory of industrial organization, in the tradition of Joseph Schumpeter. It represents the other side of the coin, which glitters in the theory of the firm: transaction costs ... agency theory and the transaction costs theory as a theory of economic organization rather than as a theory of entrepreneurship. A separate line of thinking in the theory of the firm is the dynamic ... by traditional banks. Does the amended theory fully contradict the present one and have the concepts of the present theory become obsolete? The concepts of the present theory of financial intermediation...
Ngày tải lên: 24/10/2012, 09:11
A CFD analysis on the effect of ambient conditions on the hygro-thermal stresses distribution in a planar ambient airbreathing PEM fuel cell
Ngày tải lên: 05/09/2013, 14:58
The Use of Plant Cell Biotechnology for the Production of Phytochemicals
... elucidation of specific biosynthetic enzymes, and the identification of end-products. The complete genetic makeup of an organism has been generated in the plant sciences as well. Because of the success of ... made in plant cell cultures of C. roseusby Dos Santos et al. (1994) concerning equality of the rate of catabolism with the rate of de novo compound biosynthesis. The phenomenon of catabolism ... of interest or the feasibility of the bioprocess. A number of factors may contribute to the efficiency of plant cells to produce desired compounds. Genetic stability of cell lines, optimization of culture...
Ngày tải lên: 25/10/2013, 05:20
136 Best Models Essays - Discuss the role of the police force in society
Ngày tải lên: 25/10/2013, 05:20