作者: GRIEF 時間: 2025-3-21 22:59 作者: fluffy 時間: 2025-3-22 02:21 作者: 說笑 時間: 2025-3-22 07:17 作者: Lament 時間: 2025-3-22 08:42
Macfarlane Burnete Astrophysics. 2nd ed. (Inst. of Phys., Bristol 2000), where the basics of this new science can be studied. However, new facts and ideas appear so fast that it978-1-4757-8100-7978-0-387-21770-3Series ISSN 0081-3869 Series E-ISSN 1615-0430 作者: 誤傳 時間: 2025-3-22 15:19
Macfarlane Burnete Astrophysics. 2nd ed. (Inst. of Phys., Bristol 2000), where the basics of this new science can be studied. However, new facts and ideas appear so fast that it978-1-4757-8100-7978-0-387-21770-3Series ISSN 0081-3869 Series E-ISSN 1615-0430 作者: 石墨 時間: 2025-3-22 19:20 作者: ESO 時間: 2025-3-23 01:05
Macfarlane Burnetsual bubble nucleation mechanism, weak transitions are characterized by a mixing of phases as the system reaches the critical temperature from above. I show that it is possible to clearly distinguish between the two, and discuss consequences for studies of first order transitions in general.作者: 容易做 時間: 2025-3-23 04:53 作者: 百科全書 時間: 2025-3-23 08:54
Macfarlane Burnetious results..These searches will benefit from the addition of luminosity during HL-LHC; however, the current detector will not be able to withstand the increase in radiation. Electronics for the detector upgrade are tested and irradiated to ensure their performance..作者: 賠償 時間: 2025-3-23 10:22 作者: 變態(tài) 時間: 2025-3-23 15:19
Macfarlane Burneti) via the imaginary part of the loop amplitude. We analyse also the process of the photon emission by an electron in magnetic fields which is the crossed process to the . decay. The second process considered is the electromagnetic interaction of the Dirac neutrino having a magnetic moment, with pla作者: VEN 時間: 2025-3-23 20:04
poor estimates of particle dispersion in external active media sometimes lead to confusion. The book will appeal to graduate and post-graduate students of theoretical physics with a prior understanding of Quantum Field Theory (QFT) and the Standard Model of Electroweak Interactions, as well as to sp作者: 交響樂 時間: 2025-3-23 23:52 作者: labyrinth 時間: 2025-3-24 05:00 作者: Meander 時間: 2025-3-24 10:06
Ageing: The Somatic Mutational Approachomatic mutation plays a considerable part, and the recent developments that interest me chiefly all seem to point in that direction. They include particularly the discovery of the Hayflick limit., its establishment for immunocyte clones . by Williamson and Askonas., and the hints that the limit is r作者: 騷動 時間: 2025-3-24 12:32 作者: 有效 時間: 2025-3-24 18:19
Hypothesis of the Genetic Control of Lifespanny rule, theoretical or empirical, enabling us to predict the nature of the one residue not yet identified by analysis’. In this sense the sequence is a . one, and yet it ‘is in fact reproduced thousands and thousands of times . . . by a highly accurate mechanism which guarantees the invariance of t作者: 走路左晃右晃 時間: 2025-3-24 21:04
Malignant Disease—1l fascination for both pathologist and philosopher as something basically unreasonable and therefore a challenge to understanding. Here I am concerned primarily in seeking a reason for the characteristic association of cancer with ageing in every species for which information is available.作者: FLAGR 時間: 2025-3-25 01:14 作者: Femish 時間: 2025-3-25 05:31 作者: 道學(xué)氣 時間: 2025-3-25 11:24
978-94-011-6608-9Sir Macfarlane Burnet 1974作者: 弄臟 時間: 2025-3-25 12:17
The Two Imperativesntages to the species. The thesis of this essay is that both requirements are solved genetically by methods which involve control of mutability in the broad sense. For survival there must be an adequate appearance of mutants to ensure possibilities of adjusting to changes in the ecosystem or occupyi作者: audiologist 時間: 2025-3-25 18:18
Intrinsic Mutagenesis: An Elementary Discussion at the Level of Molecular BiologyRNA. Damage by radiation, by free radicals, and by chemical molecules reactive with DNA is constantly occurring. At intervals the whole fantastic process of mitosis, with all its possibilities of breaks, wrong connections, and so on, is initiated and completed. Every one of these functions requires 作者: Admonish 時間: 2025-3-25 19:58 作者: 角斗士 時間: 2025-3-26 02:55
Mutation in Evolutionre in normal circumstances quantitatively unimportant and for the most part effective only through their influence on the errors in DNA replication of intrinsic origin. Under these circumstances it is inevitable that discussion should centre first on the most readily measured mutagen and the one wit作者: 整理 時間: 2025-3-26 07:11
Somatic Mutations Not altogether unreasonably, workers in the experimental biomedical sciences have resisted accepting hypotheses ascribing bodily phenomena, physiological or pathological, to somatic mutation. The objection was essentially that any hypothesis ascribing a phenomenon to a change taking place in a . is作者: 返老還童 時間: 2025-3-26 10:36 作者: 一起 時間: 2025-3-26 13:16 作者: 減弱不好 時間: 2025-3-26 16:48
The Thymus in Relation to Ageing. Enough direct evidence is available that various measurable functions of the immune system show progressive weakening and inefficiency with age. Presumably this must in some way be related to accumulating somatic mutational changes in lymphocytes and their derivates, perhaps particularly in T-immu作者: BATE 時間: 2025-3-26 22:01
Other Immunological Aspects in Ageing as the central theme of his picture of ageing, and, as long as we remember that there are many ways of dying of old age for other reasons than the failure of defences against invading microorganisms or body cells rendered alien by malignant change, it is important to press the immunological approac作者: 冷淡周邊 時間: 2025-3-27 01:14 作者: 龍卷風(fēng) 時間: 2025-3-27 06:20 作者: 調(diào)味品 時間: 2025-3-27 13:11 作者: 殘廢的火焰 時間: 2025-3-27 15:42
Malignant Disease—2ttern, and there is enough on record to make one equally confident that adequate biochemical (especially enzymological), immunological and ultrastructural study of tumour cells in culture would show an equal diversity. The one great regularity to be observed in cancer is the consistency of its age-s作者: ORE 時間: 2025-3-27 20:48 作者: 夾克怕包裹 時間: 2025-3-27 23:41 作者: Pantry 時間: 2025-3-28 03:39 作者: 充氣女 時間: 2025-3-28 07:07 作者: 細頸瓶 時間: 2025-3-28 12:47 作者: 你不公正 時間: 2025-3-28 17:18 作者: 斗爭 時間: 2025-3-28 22:38
Macfarlane Burnety the two processes. The first one, which is forbidden in a vacuum but is possible in an intense external electromagnetic field, is the photon decay into the electron–positron pair .. We calculate the probability of this process in an external field, in the two limiting cases where the detailed anal作者: 棲息地 時間: 2025-3-28 23:32
s the investigation methods for the effects ofexternal active media, both strong electromagnetic fields and hotdense plasma, in quantum processes. Solving the solar neutrino puzzlein a unique experiment conducted with the help of the heavy-waterdetector at the Sudbery Neutrino Observatory, along wit作者: 一小塊 時間: 2025-3-29 04:18
Macfarlane Burnetd the - turity date, when the science manifested itself as a separate and consistent discipline. For particle astrophysics, the science that has developed very - tensively over the last two decades, the birth is most likely to be dated to the beginning of the 1930s. Just then, after the discovery of作者: ELUDE 時間: 2025-3-29 09:48 作者: MUT 時間: 2025-3-29 12:03 作者: 做方舟 時間: 2025-3-29 18:13
Macfarlane Burnetd the - turity date, when the science manifested itself as a separate and consistent discipline. For particle astrophysics, the science that has developed very - tensively over the last two decades, the birth is most likely to be dated to the beginning of the 1930s. Just then, after the discovery of作者: 都相信我的話 時間: 2025-3-29 21:13 作者: Affectation 時間: 2025-3-30 01:53
Mutator Genes and Other Leads from Bacterial Geneticsmutant population better suited to the new conditions. Even under optimal conditions of culture, mutation is constantly occurring, and for certain types of mutant there are highly convenient methods of measuring mutation rates.作者: Interregnum 時間: 2025-3-30 06:10 作者: 毗鄰 時間: 2025-3-30 10:44 作者: BAN 時間: 2025-3-30 14:44 作者: Lobotomy 時間: 2025-3-30 16:44
Book 1974part played by the immune system in ageing with the role of the thymus as central theme. It was to be essentially an expansion of a lecture I gave in 1970 and would inevitably have been concerned with much the same material as Walford‘s book, The Immunologic Theory of Aging, though from a different 作者: 睨視 時間: 2025-3-30 22:20 作者: AMBI 時間: 2025-3-31 01:06
The Two Imperatives certainly by the progressive acceleration of somatic mutation. Either by way of increasing vulnerability to environmental impacts or by intrinsically developed disease (cancer, etc.), death eventually ensues.作者: liposuction 時間: 2025-3-31 08:59
Atherosclerosis One would gather that the etiological factors for atherosclerosis were obesity (i.e. over-eating), cigarette smoking, high blood cholesterol, high blood pressure, and emotional tension. No contributor was interested in the genetic side, although it is well known that there is evidence of inheritance of susceptibility to the disease.作者: 含糊其辭 時間: 2025-3-31 09:38 作者: 清醒 時間: 2025-3-31 15:05 作者: 輕快帶來危險 時間: 2025-3-31 19:00
