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...
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
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.
(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.
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.
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...
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.
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.
NMR is an experiment in which the resonance
frequencies of nuclear magnetic systems are
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
It is well known for you that every atom contains as its center
a nucleus that is:
much smaller in size than the atom
carrying almost the total mass of the atom
This chapter provides deeper knowledge about NUCLEI
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....
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.
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.
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).
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.
Arapkina and Yuryev Nanoscale Research Letters 2011, 6:345 http://www.nanoscalereslett.com/content/6/1/345
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.
The significance of flow cytometry can be summarized as the measure (-metry) of the optical
properties of cells (cyto-) transported by a liquid sheath (flow) to a light source excitation
(most often a laser) (Shapiro, 2003).
FCM facilitates single cell analyses of both cell suspension, such as eukariotic and
prokariotic cells, and “non cellular” suspension, such as microbeads, nuclei, mitochondria