Citations with the tag: CELL nuclei
Results 1 - 50
- Heart of the atom.
Sutton, Christine // New Scientist; 7/8/95, Vol. 147 Issue 1985, Inside Science p1Focuses on the various theories given by physicists to explain the nucleus of an atom. Details on discovery and composition of nucleus; Concept of magic numbers and the shell model; Cluster model. INSET: Fission and fusion..
- Study of Mechanisms of Cumulative-Proton Production in Neutrino-Nucleus Interactions.
Agababyan, N. M.; Ajvazyan, G.; Ammosov, V. V.; Atayan, M.; Grigoryan, N.; Gulkanyan, G.; Ivanilov, A. A.; Karamyan, G.; Korotkov, V. A. // Physics of Atomic Nuclei; Sep2002, Vol. 65 Issue 9, p1628The mechanisms of cumulative proton production are studied on the basis of data from the S CAT propane-freon bubble chamber exposed to a wideband neutrino beam at the Serpukhov accelerator. Kinematic correlations between the cumulative proton and muon, as well as pair correlations of the final...
- Investigation of Quasimolecular States in [sup 24]Mg[sup *] through the Analysis of the Angular da Correlations in the [sup 12]C([sup 14]N, d)[sup 24]Mg(a)[sup 20]Ne Reaction.
Belyaeva, T. L.; Zelenskaya, N. S.; Aguero Granados, M. // Physics of Atomic Nuclei; Sep2002, Vol. 65 Issue 9, p1616Theoretical analysis of the differential cross sections and angular correlation functions in the [sup 12]C([sup 14]N, d)[sup 24]Mg[sup *](a)[sup 20]Ne reaction at the energy of the incident nitrogen ions E[sub lab] = 29-42 MeV is performed in the models of the direct transfer of [sup 12]C...
- Swimming against the current.
Margulis, Lynn; Dolan, Michael F. // Sciences; Jan/Feb97, Vol. 37 Issue 1, p20Discusses the evolution of nucleated living cells and the evolutionary change called symbiogenesis. Explanation of cell reproduction and movement; Evolutionary theory of Harold Kirby; Reconstruction of the history of bacterial symbiosis.
- Hello Dolly.
Bronson, Rebecca; Kowalski, Kathiann M. // Odyssey; Feb98, Vol. 7 Issue 2, p12Explains how nuclear transfer was used to clone sheep. Differentiation of the cells; German scientist Hans Spemann's discovery of cells directing development of a normal embryo; Mammals in vitro fertilization; Implantation into a surrogate mother; Use of a nucleus from an adult in cloning sheep.
- What's Cooking?
Brynie, Faith Hickman // Odyssey; Oct2004, Vol. 13 Issue 7, p6Presents information on the cells, nucleus, ribosomes, mitochondria and cell membrane.
- A step towards cloned kidneys.
Polak, Monika // GP: General Practitioner; 6/17/2002, p63Reports the success of U.S. scientists in creating working kidneys from cloned cow embryos. Transfer of a cell nucleus from the donor animal into an egg from the recipient; Scientific evidence that cloned tissues can be transplanted back into animals; Disapproval of U.S. and British laws to...
- Don't panic at dropped nucleus.
Barrere, Michele // Ophthalmology Times; 12/18/95, Vol. 20 Issue 48, p7Presents the results of a study by Michael A. Kapusta, MD, on para plana vitrectomy for the management of dropped nucleus during phacoemulsification. Six recommendations for cataract surgeons.
- Pseudospin symmetry: A relativistic symmetry in nuclei.
Ginocchio, Joseph N. // AIP Conference Proceedings; 2002, Vol. 610 Issue 1, p895We briefly review the evidence that pseudospin symmetry is an SU(2) symmetry of the Dirac Hamiltonian. � 2002 American Institute of Physics.
- Progress in Human Somatic-Cell Nuclear Transfer.
Ginocchio, Joseph N. // New England Journal of Medicine; 7/27/2006, Vol. 355 Issue 4, p429A correction to the article "Progress in Human Somatic-Cell Nuclear Transfer," in the July 7, 2005 issue is presented.
- Effect of shape on the critical nucleus size in a three-dimensional Ising model: Energetic and kinetic approaches.
Berim, Gersh O.; Ruckenstein, Eli // Journal of Chemical Physics; 10/22/2002, Vol. 117 Issue 16, p7732The initial growth rate and the excitation energy of spin clusters of different shapes (cubic, stair-like, pyramidal) on a three-dimensional cubic lattice were calculated, assuming Ising-type interactions between spins and the Glauber-type spin dynamics. Using energetic and kinetic approaches,...
- Finding the collapse-inducing nucleus in a folding protein.
Fern�ndez, Ariel; Appignanesi, Gustavo A.; Colubri, Andr�s // Journal of Chemical Physics; 5/15/2001, Vol. 114 Issue 19, p8678We detect and characterize the structure and time evolution of a collapse-inducing nucleus in a small folding protein. The analysis requires a combination of kinetic and time-dependent thermodynamic data obtained from a coarse grained simulation of dominant folding pathways resolved at a...
- Origin of eukaryotic cell nuclei by symbiosis of Archaea in Bacteria is revealed by homology-hit analysis.
Horiike, Tokumasa; Hamada, Kazuo; Kanaya, Shigehiko; Shinozawa, Takao // Nature Cell Biology; Feb2001, Vol. 3 Issue 2, p210The origin of eukaryotic cell nuclei by symbiosis of Archaea in Bacteria was proposed on the basis of the phyIogenetic topologies of genes. However, it was not possible to conclude whether or not the genes involved were authentic representative genes. Furthermore, using the BLAST and FASTA...
- The nuclear envelope: filling in gaps.
Burke, Brian // Nature Cell Biology; Dec2001, Vol. 3 Issue 12, pE273Suggests that the nuclear membrane reformation uses two fusion systems in creating a closed nuclear envelope. Chromatin decondensation undergone by nuclei; Occurrence of membrane fusion events in vesicular transport; Closure of the gaps of holes by annular fusion; Increased nuclear envelope...
- Metabolic-energy-dependent movement of PML bodies within the mammalian cell nucleus.
Muratani, Masafumi; Gerlich, Daniel; Janicki, Susan M.; Gebhard, Matthias; Eils, Roland; Spector, David L. // Nature Cell Biology; Feb2002, Vol. 4 Issue 2, p106Promyelocytic leukaemia (PML) nuclear bodies are present in most mammalian cell nuclei. PML bodies are disrupted by PML retinoic acid receptor alpha (RARa) oncoproteins in acute promyelocytic leukaemia. These bodies contain numerous proteins, including Sp100, SUMO-1, HAUSP(USP7), CBP and BLM,...
- Nuclear pore assembly: locating the linchpin.
Schuldt, Alison // Nature Cell Biology; Jun2003, Vol. 5 Issue 6, p497Focuses on the structure of nucleus pore complex (NPC) which provides a gateway for communication between the nucleus and the cytoplasm in a cell. Reason for proposing that nucleoporin 107-160 sub-complex mediate the formation of a pre-pore complex on the chromatin surface; Complexity of...
- Nuclear localisation of FADD-rebuttal.
O'Reilly, L.; Crawford, S.; Huang, D. C. S.; Strasser, A. // Cell Death & Differentiation; Dec2004, Vol. 11 Issue 12, p1362Presents a letter to the editor about nuclear localization of FAS-associated death domain.
- Correction: Directed Migration of Positively Selected Thymocytes Visualized in Real Time.
Witt, Colleen M.; Raychaudhuri, Subhadip; Schaefer, Brian; Chakraborty, Arup K.; Robey, Ellen A. // PLoS Biology; Oct2005, Vol. 3 Issue 10, p1838Presents a correction to the article "Directed Migration of Positively Selected Thymocytes Visualized in Real Time," published previously in the journal "PLoS Biology."
- Genetic Manipulation by Nuclear Transfer.
Witt, Colleen M.; Raychaudhuri, Subhadip; Schaefer, Brian; Chakraborty, Arup K.; Robey, Ellen A. // Journal of Assisted Reproduction & Genetics; Sep97, Vol. 14 Issue 8, p480Presents an abstract if the article `Genetic Manipulation by Nuclear Transfer,' by Don P. Wolf, which was presented at the Second International Symposium on Preimplantation Genetics.
- More light on the structure of nuclei.
Frankfurt, Leonid; Sargsian, Misak; Strikman, Mark // Physics Today; Aug2008, Vol. 61 Issue 8, p12A letter to the editor is presented in response to the article of David J. Dean, which discusses the structure of nuclei in the November 2007 issue.
- More light on the structure of nuclei.
Dean, David J. // Physics Today; Aug2008, Vol. 61 Issue 8, p13A response by David J. Dean to a letter to the editor about his article discussing the structure of nuclei in the November 2007 issue is presented.
- A carbon halo.
R. J. F. // Physics Today; Feb2010, Vol. 63 Issue 2, p16The article offers information on the halo structure of carbon.
- Pleistocene Park: Mammoth Clone in Five Years?
Bailey, Ronald // Hit & Run; 1/16/2011, p38The article reports on the plan by Japanese researchers to produce a mammoth clone by inserting nuclei from frozen mammoth cells into enucleated elephant eggs.
- Kinetochore.
Bailey, Ronald // Encyclopedic Reference of Molecular Pharmacology; 2004, p541A definition of the term "kinetochores" which refers to the attachment sites on the condensed chromosomes is presented .
- The cell nucleus.
Laskey, R.A. // British Medical Journal (Clinical Research Edition); 10/31/1987, Vol. 295 Issue 6606, p1121Focuses on the organization of the cell nucleus in selective information retrieval. Description of cell nucleus; Role of the cell nucleus in the copying of genome into RNA; Alterations in DNA packing in relation to the problems in selective information retrieval.
- The geometric vector potential in molecular systems with arbitrarily many identical nuclei.
Kendrick, Brian; Mead, C. Alden // Journal of Chemical Physics; 3/8/1995, Vol. 102 Issue 10, p4160It is known that Born�Oppenheimer electronic wave functions (in systems in which electronic spin plays no role) can acquire a double-valuedness as functions of nuclear coordinates unless the real wave function is multiplied by a phase factor that cancels the sign change that occurs when the...
- Toward human therapeutic cloning.
Aschheim, Kathy // Nature Biotechnology; Nov2011, Vol. 29 Issue 11, p986The article reports on a research study which showed that the tendency of human somatic cell nuclear transfer embryos to arrest during the early development stage can be overcome if the oocyte nucleus is left in place.
- Molecular Cell.
Aschheim, Kathy // Biomedical Market Newsletter; 8/23/2011, Vol. 21, p178The article focuses on brassinosteroids, a class of plant hormone which provides a pathway in sending proteins on the nucleus to improve crop production.
- achromatin:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p7A definition of the term "achromatin" is presented, which refers to that part of the nucleus that cannot be stained by basic dye.
- acrosyndesis:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p9A definition of the term "Acrosyndesis," which refers to incomplete end-to-end chromosome pairing, is presented.
- amphikaryon:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p27A definition of the term "amphikaryon" is presented, which refers to the nucleus of the zygote produced after fertilization.
- androsome:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p31A definition of the term "androsome," is presented, which refers to any chromosome exclusively present in the male nucleus.
- anucleolate:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p36A definition of the term "anucleolate," which means without a nucleus, is presented.
- archesporial:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p39A definition of the term "archesporial," which refers to the differentiated cell situated in the nucellar tissue of the ovule, is presented.
- coenocytes:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p97A definition of the term "coenocytes" is presented.
- daughter nucleus:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p120A definition of the term "daughter nucleus," which refers to the nuclei that result from the division of a single nucleus, is presented.
- DNA content:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p135An encyclopedia entry for the term "DNA content" used in terms of plant breeding is presented.
- eukaryon:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p157A definition of the term "eukaryon," which refers to the nucleus of a eukaryote, is presented.
- eukaryote:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p157A definition of the term "eukaryote," which is an organism having distinct nucleus in its cells, is presented.
- extranuclear:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p160A definition for the term "extranuclear," as it used in genetics, is presented.
- hexaploid:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p209A definition of the term "hexaploid" is presented, which refers to cells with six sets of chromosomes.
- hexasomic:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p209A definition of the term "hexasomic" is presented, which refers to a cell or individual with one chromosome six times.
- interphase nucleus:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p233A definition of the term "interphase nucleus" is presented, which refers to a nucleus during the interphase stage without dividing activity.
- karyogamy:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p240The article presents a definition of the term "karyogamy," refers to the formation of a diploid by the fusion in a cell of haploid nuclei.
- karyology:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p241The article presents a definition of the term "karyology," which is the study of the nucleus and its components.
- karyolysis:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p241The article presents a definition of the term "karyolysis," which refers to the disappearance of the interphase nucleus during karyogenesis.
- karyosome:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p241The article presents a definition of the term "karyosome," which refers to any of several masses of chromatin in the reticulum of a cell nucleus.
- karyostasis:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p241The article presents a definition of the term "karyostasis," which refers to the stage of cell cycle with a metabolic and synthetic activity but with no visible dividing activity of the nucleus.
- nuclear transplantation:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p292A definition of the term "nuclear transplantation" is presented which refers to the transfer of a nucleus into the cytoplasm of another cell.
- numeric constancy of chromosomes:.
Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects; 2003, p295An encyclopedia entry for the term "numeric constancy of chromosomes," which refers to the constant inheritance of the same number of chromosomes from generation to generation, facilitated by the mitotic and meiotic mechanisms, is presented.
