SMA-proper generates pre-movement potentials with slow movement rate but not with rapid one

1997 ◽  
Vol 103 (1) ◽  
pp. 121 ◽  
Author(s):  
T Kunieda
Keyword(s):  
Slow Movement ◽  
Movement Rate

Radiometric Chronology of Neh–nar Glacier, Kashmir

1982 ◽  
Vol 28 (98) ◽  
pp. 91-105 ◽  
Author(s):  
V. N. Nijampurkar ◽  
N. Bhandari ◽  
C. P. Vohra ◽  
V. Krishnan
Keyword(s):  
Average Rate ◽  
Component Model ◽  
Vertical Profiles ◽  
Kashmir Valley ◽  
Movement Rate ◽  
Accumulation Zone ◽  
Core Samples ◽  
Surface Samples ◽  
Two Component

AbstractSurface and core samples of Neh–nar Glacier in the Kashmir Valley have been analysed for the radionuclides 32Si. 210Pb, 40K, and 137Cs. The lateral and vertical profiles (at an altitude of about 4 140 m) reveal:(1)32Si activity decreasing slowly from the accumulation zone to 4 050 m altitude and then abruptly towards the snout.(2)Five zones of alternating high and low 210Pb activity in the surface samples.(3)An horizon at between 2 and 3 m depth containing 210Pb activity above natural levels. This horizon is also associated with 137Cs and a maximum in total ß activity.The ice samples have been dated on the basis of a simplified two–component model, the “fresh“contribution determined by 2l0Pb and the old component by 32Si. The following conclusions can be drawn from these observations:(1)The model age of the snout ice is c. 850 years.(2)The average rate of ice movement in the lower glacier is about 2 m/year, which compares well with the annual movement rate of 2.65 m/year observed since 1974.

scholarly journals Optimal Flow—A Pilot Study Balancing Sheep Movement and Welfare in Abattoirs

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 344
Author(s):  
Melissa J. Starling ◽  
Elyssa Payne ◽  
Paul McGreevy
Keyword(s):  
Pilot Study ◽  
Additional Source ◽  
Movement Rate ◽  
Optimal Outcomes ◽  
Optimal Flow ◽  
Livestock Movement ◽  
Trade Offs ◽  
Behavioural Interactions ◽  
Handling Practices ◽  
Rate Of Movement

Abattoirs are faced with the challenge of moving livestock efficiently through the plant, while also engaging in handling practices that assure good animal welfare. Achieving optimal outcomes for both of these goals can bring them into conflict. An additional source of conflict can arise from the design of the abattoir. These problems are compounded by the dearth of research available to inform how livestock should be handled to achieve all of these goals. We applied the concept of ‘Optimal Flow’ to describe conditions under which rate of movement is maximised while overt signs of distress in sheep are minimised. Effectively, this represents the point at which trade-offs between speed and welfare converge. The current pilot study examined the behavioural interactions between humans (n = 5), livestock herding dogs (n = 7), and sheep (n = 3235) in a large Australian abattoir to describe the factors associated with an increase or decrease in rate of sheep movement per minute. It revealed that distress behaviours in sheep were associated with dog presence and with a decrease in livestock movement rate. However, we found that as sheep density increased, there was increased livestock movement rate as well as an elevated incidence of distress behaviours. Optimal Flow at this abattoir was achieved by maintaining sheep at lower densities. Our report discusses the possible confounds in this interpretation.

scholarly journals The tandem repeat domain in the Listeria monocytogenes ActA protein controls the rate of actin-based motility, the percentage of moving bacteria, and the localization of vasodilator-stimulated phosphoprotein and profilin.

1996 ◽  
Vol 135 (3) ◽  
pp. 647-660 ◽  
Author(s):  
G A Smith ◽  
J A Theriot ◽  
D A Portnoy
Keyword(s):  
Listeria Monocytogenes ◽  
Actin Polymerization ◽  
Consensus Sequence ◽  
Wild Type ◽  
Movement Rate ◽  
Bacterial Surface ◽  
Rate Dependent ◽  
Repeat Domain ◽  
Low Levels ◽  
Rate Of Movement

The ActA protein is responsible for the actin-based movement of Listeria monocytogenes in the cytosol of eukaryotic cells. Analysis of mutants in which we varied the number of proline-rich repeats (PRR; consensus sequence DFPPPPTDEEL) revealed a linear relationship between the number of PRRs and the rate of movement, with each repeat contributing approximately 2-3 microns/min. Mutants lacking all functional PRRs (generated by deletion or point mutation) moved at rates 30% of wild-type. Indirect immunofluorescence indicated that the PRRs were directly responsible for binding of vasodilator-stimulated phosphoprotein (VASP) and for the localization of profilin at the bacterial surface. The long repeats, which are interdigitated between the PRRs, increased the frequency with which actin-based motility occurred by a mechanism independent of the PRRs, VASP, and profilin. Lastly, a mutant which expressed low levels of ActA exhibited a phenotype indicative of a threshold; there was a very low percentage of moving bacteria, but when movement did occur, it was at wild-type rates. These results indicate that the ActA protein directs at least three separable events: (1) initiation of actin polymerization that is independent of the repeat region; (2) initiation of movement dependent on the long repeats and the amount of ActA; and (3) movement rate dependent on the PRRs.

The Return of Orestes

1961 ◽  
Vol 81 ◽  
pp. 99-104 ◽  
Author(s):  
V. E. G. Kenna
Keyword(s):  
Religious Tradition ◽  
Personal Relationships ◽  
Slow Movement ◽  
Simple Action

In their accounts of the return of Orestes, the three great tragedians show respect for the ancient tradition and the greatness of it by their several interpretations. Each preserves the general tenor of the legend. Electra awaits the return of her brother to avenge her father's death. The secrecy of his return delays recognition, but once Orestes is made known to his sister the punishment of Clytemnestra and Aegisthus becomes inevitable. Of the differences in action and character in each play, the most significant is the means whereby the recognition of Orestes takes place. This affects not only the mood of each tragedy, but its construction.The recognition scene placed early in the Choephori (224) presents an almost rustic simplicity (lines 228, 231, 232). This matches the lament and slow movement of the invocation by Orestes, Electra and the chorus that follow. The audience are spectators of a simple action from which the drama as simply proceeds. Such simplicity rightly receives an archaic treatment derived from a great religious tradition. The Euripidean version, psychologically more complicated, shows the interplay of personal relationships largely dependent upon memory. This complexity, expressed in the intricate nature of prologue, delays the recognition of Orestes by Electra. Yet in Euripides (Electra 577) the scene still occurs comparatively early—perhaps in deference to tradition, or perhaps that the movement of vengeance can be more fully displayed. In Sophocles (Electra 1224), however, the recognition scene is placed towards the end of the play.

The costs of taking it slowly: Fast and slow movement timing in older age.

2010 ◽  
Vol 25 (4) ◽  
pp. 980-990 ◽  
Author(s):  
Ralf Th. Krampe ◽  
Mihalis Doumas ◽  
Ann Lavrysen ◽  
Michael Rapp
Keyword(s):  
Older Age ◽  
Slow Movement ◽  
Movement Timing

Left hemisphere specialization for the control of voluntary movement rate

NeuroImage ◽  
2004 ◽  
Vol 22 (1) ◽  
pp. 289-303 ◽  
Author(s):  
John A Agnew ◽  
Thomas A Zeffiro ◽  
Guinevere F Eden
Keyword(s):  
Left Hemisphere ◽  
Voluntary Movement ◽  
Movement Rate ◽  
Hemisphere Specialization
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