Xem 1-20 trên 53 kết quả Nuclei
  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Decreased catalytic function with altered sumoylation of DNA topoisomerase I in the nuclei of scleroderma fibroblasts...

    pdf9p thulanh16 22-10-2011 19 3   Download

  • (BQ) Part 1 book "Introductory nuclear physics" has contents: Introduction, nucleon structure, nuclear force and two nucleon systems, bulk properties of nuclei, electromagnetic and weak interaction.

    pdf219p bautroibinhyen21 14-03-2017 5 3   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học thế giới đề tài: A repetitive probe for FISH analysis of bovine interphase nuclei

    pdf0p toshiba19 15-11-2011 17 2   Download

  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Neurotransmitters of the suprachiasmatic nuclei...

    pdf20p thulanh23 21-11-2011 14 2   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Three-dimensional reconstruction of cell nuclei, internalized quantum dots and sites of lipid peroxidation

    pdf19p toshiba25 08-12-2011 20 2   Download

  • The nuclei in the plasmodiumofPhysarumpolycephalum,as of othermyxomycetes, containhigh amounts of polymalate, which has been proposed to function as a scaffold for the carriage and storage of several DNA-binding proteins [Angerer, B. and Holler, E. (1995) Biochemistry34, 14741– 14751]. By delivering fluorescence-labeled polymalate into a growing plasmodiumby injection, we observedmicroscopic staining of nuclei in agreement with the proposed function.

    pdf7p tumor12 20-04-2013 10 2   Download

  • (BQ) Part 1 book "Neuroanatomy and pathology of sporadic alzheimer’s disease" presentation of content: Prologue, introduction, basic organization of non thalamic nuclei with diffuse cortical projections, microtubules and the protein tau, early presymptomatic stages, the pattern of cortical lesions in preclinical stages,... and other contents.

    pdf83p thangnamvoiva23 06-10-2016 4 2   Download

  • Molecules, small structures composed of atoms, are essential substances for lives. However, we didn’t have the clear answer to the following questions until the 1920s: why molecules can exist in stable as rigid networks between atoms, and why molecules can change into different types of molecules. The most important event for solving the puzzles is the discovery of the quantum mechanics. Quantum mechanics is the theory for small particles such as electrons and nuclei, and was applied to hydrogen molecule by Heitler and London at 1927.

    pdf212p qsczaxewd 22-09-2012 77 36   Download

  • In both fission and fusion, unstable nuclei have become more stable. Energy is released. In order to explain these processes, we need to be able to say where this energy comes from. One answer lies in the origins of the nuclei we are considering. Take, for example, uranium. The earth’s crust contains uranium. In some places, it is sufficiently concentrated to make it worth while extracting it for use as the fuel in fission reactors. This uranium has been part of the Earth since it was formed, 4500 million years ago. The Earth formed a swirling cloud of dust...

    pdf28p xukadethuong 11-07-2010 68 24   Download

  • ¾ With the modern knowledge about the structure of matter we know that electric charges come from elementary particles: negatively charged electron and positively charged proton. In nuclei there are also neutron with no charge. Interaction between charges: two positive charges or two negative charges repel each other. A positive charge and a negative charge attract each other. This interaction is called the static electric interaction.

    pdf66p thanhan 22-07-2009 124 23   Download

  • This introduction to nuclear physics provides an excellent basis for a core undergraduate course in this area. The authors show how simple models can provide an understanding of the properties of nuclei, both in their ground and excited states, and of the nature of nuclear reactions. They include chapters on nuclear fission, its application in nuclear power reactors, the role of nuclear physics in energy production and nucleosynthesis in stars.

    pdf238p camnhung_1 13-12-2012 56 15   Download

  • NMR is an experiment in which the resonance frequencies of nuclear magnetic systems are investigated. NMR always employs some form of magnetic field (usually a strong externally applied field B0) NMR is a form of both absorption and emission spectroscopy, in which resonant radiation is absorbed by an ensemble of nuclei in a sample, a process causing detectable emissions via a magnetically induced electromotive force.

    pdf20p qdung92ct 03-07-2012 58 10   Download

  • It is well known for you that every atom contains as its center a nucleus that is: positively charged much smaller in size than the atom carrying almost the total mass of the atom This chapter provides deeper knowledge about NUCLEI

    pdf22p thanhan 22-07-2009 73 8   Download

  • In 1932, James Chadwick discovered the neutron, but initially the only sources of neutrons were from the radioactive decay of unstable nuclei. It was not until 1942 when Enrico Fermi constructed the first nuclear reactor in the squash courts beneath the University of Chicago’s Stagg Field, that a controlled and sustained nuclear chain reaction was achieved. After World War II, nuclear reactors became available for civilian research, and in 1945 Ernest Wollan set up a double-crystal diffractometer at ORNL’s Graphite Reactor. This marks the beginning of neutron scattering....

    pdf569p chuyenphimbuon 21-07-2012 29 8   Download

  • Random matrices are widely and successfully used in physics for almost 60-70 years, beginning with the works of Wigner and Dyson. Initially proposed to describe statistics of excited levels in complex nuclei, the Random Matrix Theory has grown far beyond nuclear physics, and also far beyond just level statistics. It is constantly developing into new areas of physics and mathematics, and now constitutes a part of the general culture and curriculum of a theoretical physicist.

    pdf517p camnhung_1 13-12-2012 32 7   Download

  • Introduction: Many of antidepressants exert their effects by inhibiting the reuptake of norepinephrine and serotonin and by accerelating the release of them at synaptic terminals of neurons in the brain. As characteristic structures of such drugs showing antidepressive effects, many of them have tricyclic or tetracyclic nuclei; this is the reason why they are called “tricyclic antidepressants or tetracyclic antidepressants”. There are many cases of suicides using the antidepressants; their massive intake sometimes causes death.

    pdf11p bigbaby87 01-09-2010 57 6   Download

  • Water Excretion In contrast to the ingestion of water, its excretion is tightly regulated by physiologic factors. The principal determinant of renal water excretion is arginine vasopressin (AVP; formerly antidiuretic hormone), a polypeptide synthesized in the supraoptic and paraventricular nuclei of the hypothalamus and secreted by the posterior pituitary gland.

    pdf5p ongxaemnumber1 29-11-2010 46 6   Download

  • Major treatment decisions are made on the basis of whether a tumor is classified as a small cell lung carcinoma (SCLC) or as one of the non-small cell lung cancer (NSCLC) varieties (squamous, adenocarcinoma, large cell carcinoma, bronchioloalveolar carcinoma, and mixed versions of these).

    pdf5p konheokonmummim 03-12-2010 41 5   Download

  • Chữa Bệnh Parkinson Bằng Cách Kích Thích Các Nhân Sâu Trong Não DBS là phương cách làm các phần của não đã gây ra bệnh Parkinson ngưng hoạt động. Có 3 nơi trong não có thể kích thích để kiểm soát các triệu chứng: 1. thalamus (đồi thị) để điều trị sự run rẩy (tremor) 2. globus pallidus (thể tròn nhạt) cho Bệnh Parkinson. 3.

    pdf10p sinhtobo111 13-04-2011 51 5   Download

  • Arapkina and Yuryev Nanoscale Research Letters 2011, 6:345 NANO EXPRESS Open Access CMOS-compatible dense arrays of Ge quantum dots on the Si(001) surface: hut cluster nucleation, atomic structure and array life cycle during UHV MBE growth Larisa V Arapkina and Vladimir A Yuryev* Abstract We report a direct observation of Ge hut nucleation on Si(001) during UHV molecular beam epitaxy at 360°C. Nuclei of pyramids and wedges were observed on the wetting layer (WL) (M × N) patches starting from the coverage of 5.

    pdf13p dauphong13 09-02-2012 26 5   Download


Đồng bộ tài khoản