before the invention of cell phones
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
ARATRA PENTELICI. SEVEN LECTURES ON THE ELEMENTS OF SCULPTURE, GIVEN BEFORE THE UNIVERSITY OF OXFORD IN MICHAELMAS TERM, 1870 pot
... that of the fluting of a Doric shaft, are only of use near the eye and in beautiful stone; and the pursuit of them was one of the many errors of later Gothic. The statement in the text that the ... color, and the other of the combinations of line and form, which might each of them separately engage us in as intricate study as that of the science of music. But of the two, the science of color ... the drift of the statements in the text too long if I attempted here to illustrate by figures the relation of the colter to the share, and of the hard to the soft pieces of metal in the share...
Ngày tải lên: 15/03/2014, 14:20
A Course of Lectures DELIVERED BEFORE THE UNIVERSITY OF CAMBRIDGE pptx
... history of the few; and as we measure the Himâlaya by the height of Mount Everest, we must take the true measure of India from the poets of the Veda, the sages of the Upanishads, the founders of the ... India, the home of Brahmanism, the birthplace of Buddhism, and the refuge of Zoroastrianism, even now the mother of new superstitions—and why not, in the future, the regenerate child of the purest ... of Hebrews, Greeks, and Phœnicians, was abundantly represented in the lore of these Wise Men of the East. The first Ionian sages lighted the torch of philosophy at the altar of Zoroaster. The...
Ngày tải lên: 29/03/2014, 11:20
Paper Manufacture in Central and Eastern Europe Before the Introduction of Paper-making Machines pptx
... Sapiega), the Chancellor of Lithuania. 87 Fig.11: Watermark (reduced) of the Vilnius (Wilno) papermill, depicting the coat of arms of Leo Sapieha, the Chancellor of the Grand Duchy of Lithuania, ... binding of the book some fragments of watermark are not available. Nonetheless, the very structure of the laid cover of the papermaking mould-frame impressed in the wire side of paper is also of ... the printing office in Pečerska Ławra, the famous Orthodox monastery (now within the boundaries of Kyjiv) and the spiritual capital of the Ruthenia. The Archimandrite Elisues Pleteniecki, the...
Ngày tải lên: 01/04/2014, 00:20
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 ... the spindle before the onset of anaphase: that is, one sister kinetochore must become attached to one spindle pole and the other to the opposing pole. However, during the normal course of ... 'triggers' the checkpoint. These are misleading oxymora: as the role of the checkpoint is to detect a problem, the monitoring mechanism (that is, the check- point) must be already active before the...
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
... 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 ... before co-receptor engagement, poten- tially allowing for an open access of the HIV machinery to the cytoplasm of the target cells (Figure 1). However, the complete blockade of infection in the...
Ngày tải lên: 12/08/2014, 23:22
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
Báo cáo y học: "The use of a blood conservation device to reduce red blood cell transfusion requirements: a before and after study" doc
Ngày tải lên: 13/08/2014, 20:21
