Results 251 to 260 of about 1,861,377 (295)

Mass-spec spawns spate of spindle-pole parts

Trends in Cell Biology, 1998
Abstract Wigge, P. A., Jensen, O. N., Holmes, S., Soues, S., Mann, M. and Kilmartin, J. V. (1998) Analysis of the Saccharomyces spindle pole by matrix-assisted laser desorption/ionization (MALDI) mass spectrometry J. Cell Biol.
W Marshall
exaly   +2 more sources

Assessing EEG sleep spindle propagation. Part 1: Theory and proposed methodology

Journal of Neuroscience Methods, 2014
A convergence of studies has revealed sleep spindles to be associated with sleep-related cognitive processing and even with fundamental waking state capacities such as intelligence. However, some spindle characteristics, such as propagation direction and delay, may play a decisive role but are only infrequently investigated because of technical ...
Christian O'Reilly, Tore A. Nielsen
exaly   +3 more sources

The nucleolar phosphoprotein B23 redistributes in part to the spindle poles during mitosis

Journal of Cell Science, 1999
ABSTRACT B23 is a major phosphoprotein in the interphasic nucleolus where it is involved in the assembly of pre-ribosomes. Using several cultured animal cells, we report that, in addition to the known redistribution of the protein during mitosis, B23 also becomes associated with mitotic spindle poles starting from early prometaphase ...
O V, Zatsepina, A, Rousselet, P K, Chan, M O, Olson, E G, Jordan, M, Bornens   +5 more
openaire   +2 more sources

Modelling of vertical spindle mills. Part 1: Sub-models for comminution and classification

Fuel, 2015
A new mechanistic model for vertical spindle mills (VSM) has been developed by Julius Kruttschnitt Mineral Research Centre (JKMRC) at the University of Queensland. Unlike the previous work in the literature, which treats the VSM as a “black box”, the present work incorporates two sets of variables in the model: (1) the coal specific property, and (2 ...
Shi, Fengnian, Kojovic, Toni, Brennan, Matthew   +2 more
exaly   +4 more sources

The Mechanism of Chatter Vibration in a Spindle-Workpiece System: Part 1—Properties of Self-Excited Chatter Vibration in Spindle-Workpiece System

Journal of Engineering for Industry, 1988
The elimination of chatter vibration is important to improve cutting accuracy and to improve productivity of the cutting operation. In this study, the characteristics of the primary and regenerative chatter vibration occurring in the spindle-workpiece system are investigated experimentally using six spindle-workpiece systems having different vibratory ...
E. Marui, S. Kato, M. Hashimoto, T. Yamada   +3 more
openaire   +2 more sources

Spindle assembly: asters part their separate ways

Nature Cell Biology, 2005
Cells have developed diverse ways to separate two microtubule asters to form a mitotic spindle. Here, I focus on two mechanisms used to position asters around chromosomes during mitosis: first, aster migration around the nuclear envelope and, second, aster attachment to a contractile cortex at the plasma membrane after the nuclear envelope has broken ...
openaire   +2 more sources

Studies in Postural Control Systems Part III: A Muscle Spindle Model

IEEE Transactions on Systems Science and Cybernetics, 1970
A linear lumped-parameter mechanical model of the muscle spindle is presented. It is shown that the model simulation on a digital computer exhibits the spindle behavior in most aspects of transient ramp-stretch performance. The requirements that such a model places on the mechanisms of fusimotor control are discussed.
Gerald L. Gottlieb, Gyab C. Agarwal, Lawrence Stark   +2 more
openaire   +3 more sources

Force Measurement in Pyramid Shaped Parts with a Spindle Mounted Force Sensor

Key Engineering Materials, 2007
Forces are measured in Single Point Incremental Forming with a spindle mounted sensor. Results for AA3003 aluminum cones and pyramids are shown. Forces are measured for parts with a 75° forming angle, at which shear cracks are expected to occur. Forces in the three directions are measured on the spindle with force spikes being observed when the tool ...
Alexander Szekeres, M. Ham, J. Jeswiet
openaire   +1 more source

Vibration of rotating-shaft HDD spindle motors with flexible stationary parts

Digest of the Asia-Pacific Magnetic Recording Conference, 2003
Demonstrates an accurate mathematical model predicting forced vibration of rotating-shaft hard disk drive spindle motors with flexible stationary parts. The mathematical model consists of three parts: a rotating part, a stationary part, and bearings. The rotating part includes a flexible hub, a flexible shaft press-fit into the hub, and N elastic disks
null Chaw-Wu Tseng, null Jr-Yi Shen, I.Y. Shen   +2 more
openaire   +1 more source

Membrane-bound Cytoplasmic Crystals, Similar to Those in Alveolar Soft Part Sarcoma, in a Human Muscle Spindle

Ultrastructural Pathology, 1990
Membrane-bound cytoplasmic crystals were found in the intrafusal fibers of a muscle spindle from a patient with neurogenic atrophy. The crystals have a periodicity of 10 nm and an intersecting axis angle of approximately 80 degrees. This makes the crystals similar to those described in alveolar soft part sarcoma (ASPS). Because the crystals in ASPS may
Per H B Carstens
exaly   +3 more sources