Dense nuclei. Medical search. Frequent questions

DSRCT is composed of small cells with round hyperchromatic nuclei and a dense fibrous or spindle cell stroma. (medscape.com)
Lymphoma cells were mostly of intermediate size with dense hyperchromatic nuclei, inconspicuous nucleoli, and infrequent mitosis. (nih.gov)
Looking for hyperchromatic nuclei, irregular nuclear membranes, and dense cytoplasm would aid in the diagnosis of a squamous lesion. (bccancer.bc.ca)
The pathology laboratory received a 0.3 cm surgical skin sample, which was microscopically described as a dermis fragment infiltrated by neoplasia consisting of small cells, hyperchromatic nuclei, grouped into small nodules, cords or outlining structures ring, dissecting the entire dermis and with preserved epidermis. (bvsalud.org)

Ernest Rutherford later devised an experiment with his research partner Hans Geiger and with help of Ernest Marsden, that involved the deflection of alpha particles (helium nuclei) directed at a thin sheet of metal foil. (wikipedia.org)
By mass, the distribution of elements was approximately 75 percent hydrogen nuclei and 24 percent helium nuclei (the other percent consisted of other light elements like lithium). (howstuffworks.com)
Alpha radiation consists of helium nuclei and is readily stopped by a sheet of paper. (newworldencyclopedia.org)

This group also found that while both receptor subtypes were seen in the membranes and cytoplasm of cell bodies, the β 2 receptor subtype, but not the β 1 , was localized to the nucleus. (frontiersin.org)
Wright's stain gives the nucleus a deep purple color and the cytoplasm a pale robin's-egg blue in typical cells. (dictionary.com)
Paraspermatogonia are characterized by voluminous nuclei with irregular clusters of heterochromatin, numerous dilated cisternae of the rough endoplasmic reticulum and small electron-dense granules spread through the cytoplasm. (applesnail.net)
Cytoplasm is scant to absent in many groups, while other clusters have well-defined, dense basophilic cytoplasm. (bccancer.bc.ca)
They have dense cytoplasm, thin cellulose walls and prominent nuclei. (topperlearning.com)
These cells exhibited pleomorphism, voluminous cytoplasm and nucleus with prominent nucleolus and were identified by immunohistochemical method as CD68+ cells. (bvsalud.org)

The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger-Marsden gold foil experiment. (wikipedia.org)
After the discovery of the neutron in 1932, models for a nucleus composed of protons and neutrons were quickly developed by Dmitri Ivanenko and Werner Heisenberg. (wikipedia.org)
Protons and neutrons are bound together to form a nucleus by the nuclear force. (wikipedia.org)
The nucleus of an atom consists of neutrons and protons, which in turn are the manifestation of more elementary particles, called quarks, that are held in association by the nuclear strong force in certain stable combinations of hadrons, called baryons. (wikipedia.org)
In an atom, the protons and neutrons hang out in the center, or nucleus . (dictionary.com)
The familiar protons and neutrons that make up the atomic nucleus are examples of baryons. (dictionary.com)
Alternatively, the detector might contain a minute amount of tritium, a radioactive form of hydrogen with two neutrons in its nucleus . (dictionary.com)
Let's start simple: In the nucleus of an atom, there are protons and neutrons, surrounded by electrons. (astronomy.com)
It's still a packed system of particles constrained into a certain space, but this time the particles are mostly neutrons, with just a few protons, and the space is much larger than an atomic nucleus. (astronomy.com)
The same principle still holds, however - because they are moving, the protons and neutrons can come into contact and interact with each other in short-range correlations, just as in an atomic nucleus. (astronomy.com)
We think that when you have a neutron-rich nucleus, the protons move faster than the neutrons, so in some sense protons carry the action on average," said team member Or Hen of MIT in a press release . (astronomy.com)
The Continuous Electron Beam Accelerator Facility Large Acceptance Spectrometer at Thomas Jefferson Laboratory allows researchers to study interactions between protons and neutrons in atomic nuclei. (astronomy.com)
In either case, the number of nucleons (neutrons plus protons) in the nucleus remains the same, while the number of protons in the nucleus changes. (newworldencyclopedia.org)
An unstable atomic nucleus with an excess of neutrons may undergo β − decay. (newworldencyclopedia.org)
Inside the nucleus are protons and neutrons. (creation.com)
There is an atomic nucleus, which consists of protons and neutrons and provide the mass of the nucleus. (sciforums.com)
In this diagram, protons and neutrons look like little balls stuck together, but an actual nucleus (as understood by modern nuclear physics ) cannot be explained like this, but only by using quantum mechanics . (sciforums.com)

aided by Drs. Lothar Houben and Sharon Wolf of the Electron Microscopy Unit, they were able to observe, for the first time, dense phases forming and subsequently transforming into crystal nuclei. (sciencedaily.com)
The scientists also found that the growth arising from dense phases results in larger, more stable crystal nuclei. (sciencedaily.com)
After crystal nuclei have formed they continue to grow in size. (lu.se)

These dimensions are much smaller than the diameter of the atom itself (nucleus + electron cloud), by a factor of about 26,634 (uranium atomic radius is about 156 pm (156×10−12 m)) to about 60,250 (hydrogen atomic radius is about 52.92 pm). (wikipedia.org)
The branch of physics concerned with the study and understanding of the atomic nucleus, including its composition and the forces that bind it together, is called nuclear physics. (wikipedia.org)
The adoption of the term "nucleus" to atomic theory, however, was not immediate. (wikipedia.org)
Instead, the data came from neutron star analogs - dense atomic nuclei here on Earth. (astronomy.com)
Although atomic nuclei aren't quite as densely packed as neutron stars, they are easier to observe and can still give insight into the inner workings of some of the most extreme objects in the universe. (astronomy.com)
Beta particles are high-energy, high-speed electrons or positrons emitted by certain types of radioactive atomic nuclei such as potassium -40. (newworldencyclopedia.org)
If the atomic nuclei of a chemical element undergo beta decay, this process leads to the transmutation of that element into another. (newworldencyclopedia.org)
It is one way by which unstable atomic nuclei acquire greater stability. (newworldencyclopedia.org)
Unstable atomic nuclei with an excess of protons may undergo β + decay, or inverse beta decay. (newworldencyclopedia.org)
These molecules are in the lowest-energy (ground) state and their atomic nuclei are about 8 Bohr radii apart. (nist.gov)

The central engines of many active galactic nuclei (AGNs) are thought to be surrounded by warm molecular and dusty material in an axisymmetric geometry, thus explaining part of the observational diversity of active nuclei. (aanda.org)

And since 'opposite charges attract', the positively-charged protons in the nucleus attract the negatively-charged electrons that reside in a 'cloud' surrounding the nucleus. (creation.com)

The jellylike material outside the cell nucleus in which the organelles are located. (enchantedlearning.com)
This pressure is capable of powering ejection of the entire viral genome into a host cell nucleus, leading to infection. (lu.se)
The novel MOA targets the pressurized genome state in a viral capsid, "turns off" capsid pressure, and blocks viral genome ejection into a cell nucleus, preventing viral replication. (lu.se)
Ultrathin sectioning EM shows that the addition of our antiviral compounds inhibits DNA ejection from HSV-1 C-capsids into a cell nucleus through the NPC. (lu.se)

An atom is composed of a positively charged nucleus, with a cloud of negatively charged electrons surrounding it, bound together by electrostatic force. (wikipedia.org)
The collective action of the positively charged nucleus is to hold the electrically negative charged electrons in their orbits about the nucleus. (wikipedia.org)
The collection of negatively charged electrons orbiting the nucleus display an affinity for certain configurations and numbers of electrons that make their orbits stable. (wikipedia.org)
the neutral atom will have an equal number of electrons orbiting that nucleus. (wikipedia.org)
It is that sharing of electrons to create stable electronic orbits about the nuclei that appears to us as the chemistry of our macro world. (wikipedia.org)
The temperature of the universe was still too high for electrons to bond with nuclei. (howstuffworks.com)
It has a dense centre called a nucleus and a cloud of electrons surrounding it. (creation.com)
What are the relative distances between the nucleus and the electrons in the hydrogen atom? (creation.com)
Electrons do not 'orbit' the nucleus like many people think, so we can't really say how 'far away' the electrons are from the nucleus, but in the hydrogen atom the average distance to the electrons is about 60,300 times the diameter of the nucleus. (creation.com)
If you were to make the nucleus as large as the sun, the average distance to the electrons would be 14 times as far away as Pluto! (creation.com)
In the same way, the distance between the nucleus and electrons is truly vast, compared to the size of the nucleus. (creation.com)
I thought the electrons determine the number of orbitals, charges determine the spin, and the electron itself is determined by the nucleus. (sciforums.com)

The nucleus has a prominent, electron-dense, granular nucleolus and clumped chromatin. (avma.org)

They had vesicular nuclei with distinct nucleoli and typically exhibited a range of nuclear atypia in the same case. (lww.com)

Each contains one irregular nucleus or several small, rounded nuclei. (dictionary.com)
Occasionally the nucleus is irregular in shape, 'clover-leaf' forms being not infrequent. (dictionary.com)

The diameter of the nucleus is in the range of 1.70 fm (1.70×10−15 m) for hydrogen (the diameter of a single proton) to about 11.7 fm for uranium. (wikipedia.org)
So, the space between the nucleus and the electron cloud is quite large, compared to the diameter of the nucleus. (creation.com)

Prof. Neumann explains that in order to bond to one another, the molecules must overcome an energy barrier: "The prevalent theory had been that chance contacts between molecules leads to bonding, eventually creating small clusters that become nuclei for larger crystals to grow. (sciencedaily.com)
In addition, they discovered that the arrangement of molecules in fully grown crystals, which they determined by X-ray crystallography with the aid of Dr. Gregory Leitus of Chemical Research Support, was in good agreement with that in the small clusters of just a few molecules in the original nuclei. (sciencedaily.com)
However, the early process is governed by the formation of liquid dense clusters as initial step, followed by the transition to higher order assemblies inside these clusters (7). (lu.se)

Görisch SM, Lichter P, Rippe K. Mobility of multi-subunit complexes in the nucleus: accessibility and dynamics of chromatin subcompartments.Histochem Cell Biol. (harvard.edu)
As this process advances, the nuclei become lobed and chromatin degenerates. (applesnail.net)
The remnant chromatin condenses to form dense bodies which are finally excreted from the cells. (applesnail.net)

Deuterium is an isotope of hydrogen containing a proton and neutron in its nucleus , while normal hydrogen has only a proton. (dictionary.com)
The hydrogen nucleus is much smaller than the electron cloud, about 2.4 femtometres. (creation.com)
As each is attracted to the nucleus by two positive charges, not just the one of hydrogen, if anything* the He4 atom should be slightly smaller and four times heavier. (sciforums.com)

A key in this endeavor is the understanding of the underlying nuclear physics of unstable nuclei that span the entire range from the proton drip line to the neutron drip line. (cern.ch)

Theories proposed in the past few decades suggest that if the molecules were to congregate together in a so-called "dense phase," in which they aggregate into a sardine-like state -- close together but unorganized -- and then crystallize from this state, the energy barrier would be lower. (sciencedaily.com)
While both states yielded crystals, the experimental results showed that when dense phases form, the energy barrier to formation of an orderly, crystalline arrangement of molecules is lower -- just as the theory predicted. (sciencedaily.com)
The nucleus is the headquarters of a cell and molecules constantly move across the nuclear membrane through pores. (rug.nl)
In the cell, large molecules that must be transported into or out of the nucleus can only do so when they are attached to such a chaperone. (rug.nl)

Enhanced production of hadrons with s -quark content has been observed in pp collisions at LHC, and earlier in collisions of heavy nuclei. (lu.se)
That the string hadronisation model fails to predict flavour ratios correctly in dense environments, was noted in collisions with various targets already at CERN-SPS by the NA35 [ 4 ] group. (lu.se)

Almost all of the mass of an atom is located in the nucleus, with a very small contribution from the electron cloud. (wikipedia.org)

Any epithelial cell may be so granular from degenerative changes that the nucleus is obscured. (dictionary.com)

We review the string hadronisation formalism and correc- tions from rope hadronisation and colour reconnection, corrections that takes place in such dense environments, and are able to correctly describe data. (lu.se)

Immunohistochemical electron microscopy labeling that used an anti-matrix examination detected infl uenza virus antigens in type II protein goat antibody detected matrix (M) proteins on the pneumocytes, in epithelial cells in the upper airways, and dense tubular structures (Figure 1, panel E) as well as on in submucosal glands. (cdc.gov)
The pores are filled with special proteins, called nucleoporins, which select what can move in or out of the nucleus. (rug.nl)
The pore itself is a big protein complex and the opening of the pore is filled with a dense network of disordered proteins called nucleoporins. (rug.nl)
Available online 25 January 2010 peaks have been linked to a dipolar flip-flop polarization transfer from 1H nuclei to rapidly relaxing amide 14N nuclei in rotationally immobilized proteins. (lu.se)

Histopathologic analysis revealed an ulcerated lesion with a dense mixed infiltrate of eosinophils, variably sized lymphocytes and epithelioid cells extending into submucosa. (bvsalud.org)

The term nucleus is from the Latin word nucleus, a diminutive of nux ('nut'), meaning 'the kernel' (i.e., the 'small nut') inside a watery type of fruit (like a peach). (wikipedia.org)
A small body located near the nucleus - it has a dense center and radiating tubules. (enchantedlearning.com)

Phacoemulsification of a moderately dense (3+) nuclear cataract is performed. (mackoolonlinecme.com)

The 14 C nucleus is strongly bound and can be regarded as such a candidate. (osti.gov)
Artificially colored electron micrographs of HSV-1 at the cell membrane (a), in transport to the nucleus (b), and bound at a nuclear pore complex (NPC) embedded within the nuclear envelope (c). (lu.se)

The lateral nucleus of the amygdala (LA) is a critical brain region for fear learning and regulating the effects of stress on memory. (frontiersin.org)
My arrival at the posterior pole of the nucleus is indicated by a dramatic improvement in the red reflex, in addition to my judgment that the clarity is adequate to achieve nuclear fracture through the posterior plate of the nucleus and the lateral peripheral layers in that meridian. (crstoday.com)

Those energy-producing organelles are inherited from a mother and have their own DNA, distinct from the genetic information - from both parents - that's stored in a cell's nucleus . (dictionary.com)

Although α cluster structures have been widely discussed in the light N ≈ Z mass region, the neutron-to-proton ratio deviates from unity in the nuclei near β-stability line and in neutron-rich nuclei. (osti.gov)
Z could become the building blocks of cluster structures in such nuclei. (osti.gov)
Furthermore, these results confirm the role of the 14 C cluster as a possible building block of cluster structures in medium-mass nuclei. (osti.gov)
One of the distinctive features was dense tubular for parainfl uenza viruses and respiratory syncytial virus by structures in the nuclei of infected cells. (cdc.gov)

The membrane that surrounds the nucleus. (enchantedlearning.com)
The nucleus is surrounded by the nuclear membrane. (enchantedlearning.com)
Pores in this membrane allow communication between the nucleus and the rest of the cell. (rug.nl)

Size comparison of various comet nuclei. (yahoo.com)
Assuming all elements have a nucleus, and all nucleus vary in size and space. (sciforums.com)
Speckled pattern distributed throughout the interphase nucleus with characteristic heterogeneity in the size, brightness and distribution of the speckles. (cdc.gov)

A flattened, layered, sac-like organelle that looks like a stack of pancakes and is located near the nucleus. (enchantedlearning.com)
An organelle within the nucleus - it is where ribosomal RNA is produced. (enchantedlearning.com)

We aim to shed light on the physical properties and kinematics of the molecular material in the nucleus of one of the closest type 2 active galaxies. (aanda.org)
and is the Shell index or crudely distance from the nucleus, (but not on any linear scale) with n=1 being the lowest energy level and closest to the nucleus. (sciforums.com)

The comet cells and cells with India ink nuclei (single cells with deep black structure-less nuclei) were only observed in malignant atypical cells. (cytojournal.com)
Other cytological features such as comet cells and cells with India ink nuclei are also helpful for diagnosis but have limited value because they are less frequently seen. (cytojournal.com)
Spindled to oval neoplastic cells with ill-defined cell borders were dispersed or formed loose whorled fascicles in a dense lymphoplasmacytic background. (lww.com)

Theses clumps of ice and dirt make up what's called the comet nucleus. (yahoo.com)
This layer is surrounded by a dense crystalline crust , which forms when the comet passes near the Sun and its outer layers heat up. (yahoo.com)

1 nucleus with a static residual quadrupole coupling, also for the water-1H magnetization, even in systems with high enhanced I-spin relaxation is observed at I-spin Larmor frequencies water content, as long as the protein component is immobilized matching an eigenfrequency of the static S-spin Hamiltonian. (lu.se)

Gamma radiation is eventually absorbed as it penetrates a dense material. (newworldencyclopedia.org)

Within the GSI-FAIR program, CBM and HADES explore the dense region of the phase diagram. (gsi.de)
The dsDNA genome appears as an electron- dense region within the capsid, which is visible in (a) and (b) but absent in (c) due to DNA ejection upon NPC binding. (lu.se)

This process is called a short-range correlation, and it can significantly affect the properties of the nucleus because of the energy involved. (astronomy.com)
In a nucleus which occupies a certain energy level (for example, the ground state ), each nucleon can be said to occupy a range of locations. (sciforums.com)

Similarly, the term kern meaning kernel is used for nucleus in German and Dutch. (wikipedia.org)

The tail can grow significantly longer than the nucleus and clock in around half a million miles long . (yahoo.com)

To this end, we obtained high angular resolution Atacama Large Millimeter/submillimeter Array (ALMA) observations of the nucleus of the Circinus galaxy. (aanda.org)

To win you have to start winning and these very attractive candidates could help form a nucleus to rebuild the Party. (dictionary.com)
The Russian people should form the state at the center, "a nucleus around which other peoples are gathered. (dictionary.com)

Phase contrast image showing atherosclerotic plaque formation (white dense area) at the bifurcation of a cerebral artery from ApoE KO mouse. (lu.se)

This justified the idea of a nuclear atom with a dense center of positive charge and mass. (wikipedia.org)
A July 1884 New York Times article called her "the nucleus and center of the whole organization of crime in New York City. (dictionary.com)

article{osti_1669902, title = {Possibility of 14C cluster as a building block of medium-mass nuclei}, author = {Itagaki, N. and Afanasjev, A. V. and Ray, D.}, abstractNote = {The possibility of the 14C cluster being a basic building block of medium-mass nuclei is discussed. (osti.gov)
The best way to determine density is to calibrate the mass, the bigger the mass the better, which is why osmium's nucleus should be the most dense. (sciforums.com)

The nucleus controls many of the functions of the cell (by controlling protein synthesis) and contains DNA (in chromosomes). (enchantedlearning.com)

But the universe expanded rapidly, which means it became less dense and cooled down. (howstuffworks.com)

Protons define the entire charge of a nucleus, and hence its chemical identity. (wikipedia.org)
The findings are also leading us into new inquiries in this area, looking at the effects and significance of dense phases on chemical reactivity. (sciencedaily.com)

Anatomy102

Organisms13

Diseases1

Chemicals and Drugs55

Analytical, Diagnostic and Therapeutic Techniques and Equipment32

Psychiatry and Psychology8

Phenomena and Processes46

Disciplines and Occupations3

Information Science4

Health Care1

Hyperchromatic nuclei4

Helium nuclei3

Cytoplasm6

Neutrons17

Crystal nuclei3

Atomic10

Active nuclei1

Protons in the nucleus1

Cell nucleus4

Electrons12

Nucleolus1

Nucleoli1

Irregular2

Diameter of the nucleus2

Clusters3

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Nuclear physics1

Molecules4

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Environments1

Proteins4

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Small2

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Distinct1

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Size3

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