the nature of cellular senescence and death

... patterns of genes of the ethylene biosynthesis and GUS activity in the ACS2:GUS line closely matched the unfertilised ovule senescence [4] In view of the fact that the up-regulation of those genes of ... support the activation of ethylene biosynthesis and response upon the onset of ovule senescence To directly test whether ovule senescence could be regulated by ethylene, we analysed the expression of ... with the senescence of ovules and valves, at and 12 DPA, respectively (Figure 4A and Additional file inset) GUS activity was first detected in the ovules at the basal zone of the ovary by the...

Ngày tải lên: 11/08/2014, 11:20

... about correlates and these trips’ transport mode, and how these elements relate to PA Purpose: to describe the frequency, purpose, and travel mode of daily trips in OAs, and their association ... assessment of patterns and levels of activity, functionality, well being and perceptions of the environment -4- We have previously reported the associations between trips per week and of accelerometer ... frequency, purpose, and travel mode of daily trips in adults over 70 years (y), and their association with participant characteristics and objectively assessed PA Understanding the nature of this relationship...

Ngày tải lên: 14/08/2014, 08:21

... or the other, this was an issue of relevance only to specialists The lack of education restricted the number of producers and consumers of cultural objects and hence the size and influence of the ... version of the space of flows, the maritime world of long distance trading, is still very present 72 The Status of Objects in the Space of Flows The space of flows - now and then - consists of three ... obligation and at the end of the day, this single collective agenda overrides all others The combination of a single agenda that lies outside of the software itself and hiding of the source code...

Ngày tải lên: 05/03/2014, 22:20

... Shin 2007) The fluctuations of credit in the context of secured lending expose the fallacy of the lump of liquidity in the financial system The language of liquidity suggests a stock of available ... funds and consisted of reverse repos in addition to other types of collateralized lending Much of this collateralized lending was short term, often overnight The other feature of the asset side of ... Abstract The financial crisis of 2007-09 highlighted the changing role of financial institutions and the growing importance of the “shadow banking system,” which grew out of the securitization of assets...

Ngày tải lên: 14/03/2014, 23:20

... 2.5 h, the thickness increased by 0.212 nm, the mass increased by 0.05 ngÆmm)2 and the density decreased by 0.0167 gÆcm)3, from the start of the experiment By the end of the measurement, the thickness ... fluorescence The subsequent plateau phase is associated with a decrease in the concentration of small species, or the aggregation and precipitation of fibrils [37] The kinetics of these three stages of the ... elongating of (pre)fibrillar species, rather than random adherence of nonfibrillar material This has been observed in DPI examination of the aggregation of other fibril-forming proteins, i.e the Alzheimer’s...

Ngày tải lên: 30/03/2014, 04:20

... PROBLEMS OF THE BURGESS SHALE -the ORIGIN OF THE BURGESS FAUNA -the DECIMATION OF THE BURGESS FAUNA CHAPTER IV Walcott's Vision and the Nature of History -the BASIS FOR WALCOTT'S ALLEGIANCE TO THE ... expresses the duality of our wonder at the beauty of the organisms themselves, and at the new view of life that they have inspired _Opabinia_ and company constituted the strange and wonderful life of ... -EVOLUTION OF THE EUKARYOTIC CELL -the FIRST FAUNA OF MULTICELLULAR ANIMALS -the FIRST FAUNA OF THE CAMBRIAN EXPLOSION -the SUBSEQUENT CAMBRIAN ORIGIN OF THE MODERN FAUNA -the ORIGIN OF TERRESTRIAL...

Ngày tải lên: 08/04/2014, 00:54

... e.g sect of the ‘Introduction’, sect and of the ‘First Set of Variations’, and sect of the ‘Second Set of Variations’ However, the main difference between the argument of this book and Moore’s ... about the circumstances By contrast, the best explanation of the forming of the belief by the scientist must, indispensably, mention the presence of the proton in both the aetiology and the justification ... exactly the right place Agents have moral beliefs and any argument critical of the objectivity of those beliefs will be pitched at the meta-level of the best explanation of the holding of them The...

Ngày tải lên: 11/06/2014, 09:44

... class, on the other hand, then it could possibly be the subject of laws of nature It need not be the subject of laws of nature, but the possibility is not precluded, given the common view of laws ... existing outside of the mind, whether they are something we make or something we discover; and if the latter is the case, it is the further problem of determining their precise nature and of formulating ... transcend not only their social milieu but also the science of their time There is no finer example of this than Darwin This is the grand theme of Michael Ghiselin’s The Triumph of the Darwinian Method...

Ngày tải lên: 11/06/2014, 12:55

... of the study and the editing of the article BR contributed to shaping of the article and the editing of the article GEE contributed to the statistical analyses and the editing of the manuscripts ... a given predictor, and an outcome in the units of measurement of the predictor It is the change in the outcome associated with a unit change in the predictor, whereas the standardized regression ... diagnosis of either LQTS or HCM, recent SCD in the family) entered at step of the model accounted for 24% of the variance in physical health Increasing age (p < 0.01) and clinical diagnosis of either...

Ngày tải lên: 20/06/2014, 15:20

... thought that ropes A and C were the two ends of the same rope and B and D were two ends of another rope Karen had A and B as ends of the same rope and C and D as ends of another rope, and her explanation ... informed not only by the beauty and majesty of the heavens, but by a deeper understanding of nature and by an appreciation of the power of the human intellect This triumph of the human mind says ... ABOUT THE NATURE OF SCIENCE In the following vignette, Barbara, Doug, and Karen use a model to continue their discussion of the nature of science and its implications for the teaching of evolution...

Ngày tải lên: 27/06/2014, 05:20

... thought that ropes A and C were the two ends of the same rope and B and D were two ends of another rope Karen had A and B as ends of the same rope and C and D as ends of another rope, and her explanation ... informed not only by the beauty and majesty of the heavens, but by a deeper understanding of nature and by an appreciation of the power of the human intellect This triumph of the human mind says ... ABOUT THE NATURE OF SCIENCE In the following vignette, Barbara, Doug, and Karen use a model to continue their discussion of the nature of science and its implications for the teaching of evolution...

Ngày tải lên: 27/06/2014, 18:20

Ngày tải lên: 10/07/2014, 15:59

... Acknowledgements: We extend our thanks to the professors in laboratory of theoretical physics of University of Natural Sciences, VNU-HCM, especially to the professor NGUYEN NGOC GIAO for helpful remarks ... đương hệ mô hình REFERENCES [1] Nguyen Ngoc Giao, The Theory of Gravitational Field (The General Theory of Relativity), Library of University of Natural Sciences, Ho Chi Minh city (in Viertnamese), ... are accelerated with respect to the background gravitational potential font” of universe ϕg0 Whether this font is just the absolute space of Newton”! However the background font is not actually...

Ngày tải lên: 22/07/2014, 10:21

... are 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 ... detects the presence of chromosomes that are not attached to the mitotic spindle via their kinetochores and, in their presence, initiates a cascade that prohibits activation of the APC and thus ... in the absence of other stresses This argument is conceptually flawed, as the fate difference observed simply reflects differences in the speed of spindle assembly Because of the stochastic nature...

Ngày tải lên: 06/08/2014, 19:21

... three of the most fundamental features of the world around us: the similarities among living things, the diversity of life, and many features of the physical world we inhabit Explanations of these ... illuminate the nature of science and to differentiate science from other forms of human endeavor and understanding Chapter describes the nature of science in detail However, it is important from the ... use to inform themselves, their students, parents, and others about evolution and the role of science in human affairs One source of resistance to the teaching of evolution is the belief that...

Ngày tải lên: 12/08/2014, 08:21

... another occupied the mid-regions of branches and ate from different parts of the foliage; and the third fed on insects occupying the finest needles near the periphery of the tree Although the ... members of the same bird species might be larger and darker in the northern part of their range, and smaller and paler in the southern part In this case, differences might be explained by the advantages ... come by and we can try it out?” “Okay,” say Karen and Doug “We’ll see you then.” Barbara, Doug, and Karen’s discussion of evolution and the nature of science resumes following Chapter NOTES The National...

Ngày tải lên: 12/08/2014, 08:21

... co-evolution of the planet’s main features the distribution of land and sea, features of the crust, the composition of the atmosphere, global climate, and populations of living organisms in the biosphere ... They soon realize that the number of ribs is related to the size of the fossils, so the groups focus on measuring the lengths and widths of the fossils They enter the data on the two different populations ... evidence of how life and environmental conditions have changed The standards for grades 5–8 cover the nature of science in the section on the history and nature of science: As a result of activities...

Ngày tải lên: 12/08/2014, 08:21

... Geochemical cycles • Origin and evolution of the earth system • Origin and evolution of the universe The discussions of the origin and evolution of the earth system and the universe relate evolution ... physical processes: The Origin and Evolution of the Earth System The sun, the earth, and the rest of the solar system formed from a nebular cloud of dust and gas 4.5 billion years ago The early earth ... contain oxygen The Origin and Evolution of the Universe The origin of the universe remains one of the greatest questions in science The “big bang” theory places the origin between 10 and 20 billion...

Ngày tải lên: 12/08/2014, 08:21