INTEGRATING JUSTICE CONSTRUCTS INTO THE TURNOVER PROCESS: A TEST OF A REFERENT COGNITIONS MODEL.

1997 ◽  
Vol 40 (5) ◽  
pp. 1208-1227 ◽  
Author(s):  
K. AQUINO ◽  
R. W. GRIFFETH ◽  
D. G. ALLEN ◽  
P. W. HOM
Keyword(s):  
Turnover Process ◽  
Referent Cognitions

Integrating Justice Constructs into the Turnover Process: A Test of a Referent Cognitions Model

1997 ◽  
Vol 40 (5) ◽  
pp. 1208-1227 ◽  
Author(s):  
Karl Aquino ◽  
Rodger W. Griffeth ◽  
David G. Allen ◽  
Peter W. Hom
Keyword(s):  
Turnover Process ◽  
Referent Cognitions

scholarly journals Allelic Genealogies in Sporophytic Self-Incompatibility Systems in Plants

Genetics ◽  
1998 ◽  
Vol 150 (3) ◽  
pp. 1187-1198 ◽  
Author(s):  
Mikkel H Schierup ◽  
Xavier Vekemans ◽  
Freddy B Christiansen
Keyword(s):  
Dominance Hierarchy ◽  
Common Ancestor ◽  
Recent Common Ancestor ◽  
Self Incompatibility ◽  
Most Recent Common Ancestor ◽  
Dominance Interactions ◽  
Turnover Process ◽  
Neutral Gene ◽  
Interspecific Comparisons ◽  
Coalescence Times

Abstract Expectations for the time scale and structure of allelic genealogies in finite populations are formed under three models of sporophytic self-incompatibility. The models differ in the dominance interactions among the alleles that determine the self-incompatibility phenotype: In the SSIcod model, alleles act codominantly in both pollen and style, in the SSIdom model, alleles form a dominance hierarchy, and in SSIdomcod, alleles are codominant in the style and show a dominance hierarchy in the pollen. Coalescence times of alleles rarely differ more than threefold from those under gametophytic self-incompatibility, and transspecific polymorphism is therefore expected to be equally common. The previously reported directional turnover process of alleles in the SSIdomcod model results in coalescence times lower and substitution rates higher than those in the other models. The SSIdom model assumes strong asymmetries in allelic action, and the most recessive extant allele is likely to be the most recent common ancestor. Despite these asymmetries, the expected shape of the allele genealogies does not deviate markedly from the shape of a neutral gene genealogy. The application of the results to sequence surveys of alleles, including interspecific comparisons, is discussed.

Yeast cells lacking 5'-->3' exoribonuclease 1 contain mRNA species that are poly(A) deficient and partially lack the 5' cap structure

1993 ◽  
Vol 13 (8) ◽  
pp. 4826-4835
Author(s):  
C L Hsu ◽  
A Stevens
Keyword(s):  
Full Length ◽  
Yeast Cells ◽  
Mrna Turnover ◽  
Turnover Rates ◽  
Wild Type ◽  
Mrna Species ◽  
Turnover Process ◽  
Hydrolysis Of ◽  
Extension Analysis ◽  
Wild Type Yeast

Analysis of the slowed turnover rates of several specific mRNA species and the higher cellular levels of some of these mRNAs in Saccharomyces cerevisiae lacking 5'-->3' exoribonuclease 1 (xrn1 cells) has led to the finding that these yeast contain higher amounts of essentially full-length mRNAs that do not bind to oligo(dT)-cellulose. On the other hand, the length of mRNA poly(A) chains found after pulse-labeling of cells lacking the exoribonuclease, the cellular rate of synthesis of oligo(dT)-bound mRNA, and the initial rate of its deadenylation appeared quite similar to the same measurements in wild-type yeast cells. Examination of the 5' cap structure status of the poly(A)-deficient mRNAs by comparative analysis of the m7G content of poly(A)- and poly(A)+ RNA fractions of wild-type and xrn1 cells suggested that the xrn1 poly(A)- mRNA fraction is low in cap structure content. Further analysis of the 5' termini by measurements of the rate of 5'-->3' exoribonuclease 1 hydrolysis of specific full-length mRNA species showed that approximately 50% of the xrn1 poly(A)-deficient mRNA species lack the cap structure. Primer extension analysis of the 5' terminus of ribosomal protein 51A (RP51A) mRNA showed that about 30% of the poly(A)-deficient molecules of the xrn1 cells are slightly shorter at the 5' end. The finding of some accumulation of poly(A)-deficient mRNA species partially lacking the cap structure together with the reduction of the rate of mRNA turnover in cells lacking the enzyme suggest a possible role for 5'-->3' exoribonuclease 1 in the mRNA turnover process.

scholarly journals Reliability Analysis and Motion Simulation of Steel Coil Upender Clamp

2011 ◽  
Vol 2-3 ◽  
pp. 924-927
Author(s):  
An Yuan Jiao ◽  
Feng Hui Wang
Keyword(s):  
Reliability Analysis ◽  
Driving Force ◽  
Motion Simulation ◽  
Steel Coil ◽  
Turnover Process ◽  
Set Up ◽  
Clamping Device

A kind of new steel coil upender clamping device was designed. The model was set up by use of SolidWorks and the reliability analysis and motion simulation was further performed in ADAMS. Because of risk at steel coil upender, once the accident appears, it gently slowed-up production and damaged the device, and it could cause people’s dying vitally, it is especially important to assure the longtime work and safety of device which we studied on. The results showed that the efficiency of turnover process of the device was high and the system could save driving force. These also provided some theory bases for the design of the device.

scholarly journals 3D Numerical Simulation of Epidermal Skin Turnover Process Using a Particle Model

2015 ◽  
Vol 03 (03) ◽  
pp. 45-49 ◽  
Author(s):  
Katsuya Nagayama ◽  
Takahiro Uehara ◽  
Yasuko Amano ◽  
Masanori Tanahashi
Keyword(s):  
Numerical Simulation ◽  
Particle Model ◽  
3D Numerical Simulation ◽  
Turnover Process

Referent Cognitions and Budgetary Fairness: A Research Note

2001 ◽  
Vol 13 (1) ◽  
pp. 91-105 ◽  
Author(s):  
Theresa Libby
Keyword(s):  
Individual Performance ◽  
Research Note ◽  
Incentive Contract ◽  
Production Task ◽  
Process Mean ◽  
Contract Performance ◽  
Stretch Targets ◽  
Referent Cognitions ◽  
Budgeting Process

This study examines the effects of fairness in budgeting on individual performance in a nonparticipative budgeting setting. An experiment was conducted in which subjects performed a production task and were compensated under a budget-based incentive contract. Performance was lowest when an unfair budget target was assigned using an unfair budgeting process. When the budget target assigned was fair, the fairness or unfairness of the budgeting process had no effect on performance. When an unfair budget target was determined using a fair budgeting process, mean performance was not significantly different from mean performance of the subjects assigned fair budget targets. Implications of this result in assigning stretch targets are discussed.

Direct Spectroscopic Detection of Key Intermediates and the Turnover Process in Catalytic H 2 Formation by a Biomimetic Diiron Catalyst

2019 ◽  
Vol 25 (47) ◽  
pp. 11135-11140 ◽  
Author(s):  
Shihuai Wang ◽  
Sonja Pullen ◽  
Valentin Weippert ◽  
Tianfei Liu ◽  
Sascha Ott ◽  
...  
Keyword(s):  
Turnover Process

scholarly journals Loss of trabeculae by mechano-biological means may explain rapid bone loss in osteoporosis

2008 ◽  
Vol 5 (27) ◽  
pp. 1243-1253 ◽  
Author(s):  
Brianne M Mulvihill ◽  
Laoise M McNamara ◽  
Patrick J Prendergast
Keyword(s):  
Trabecular Bone ◽  
Bone Tissue ◽  
Bone Fragility ◽  
Osteoporotic Bone ◽  
Single Fracture ◽  
Rapid Loss ◽  
Fracture Event ◽  
Turnover Process ◽  
Trabecular Bone Mass ◽  
Bone Trabeculae

Osteoporosis is characterized by rapid and irreversible loss of trabecular bone tissue leading to increased bone fragility. In this study, we hypothesize two causes for rapid loss of bone trabeculae; firstly, the perforation of trabeculae is caused by osteoclasts resorbing a cavity so deep that it cannot be refilled and, secondly, the increases in bone tissue elastic modulus lead to increased propensity for trabecular perforation. These hypotheses were tested using an algorithm that was based on two premises: (i) bone remodelling is a turnover process that repairs damaged bone tissue by resorbing and returning it to a homeostatic strain level and (ii) osteoblast attachment is under biochemical control. It was found that a mechano-biological algorithm based on these premises can simulate the remodelling cycle in a trabecular strut where damaged bone is resorbed to form a pit that is subsequently refilled with new bone. Furthermore, the simulation predicts that there is a depth of resorption cavity deeper than which refilling of the resorption pits is impossible and perforation inevitably occurs. However, perforation does not occur by a single fracture event but by continual removal of microdamage after it forms beneath the resorption pit. The simulation also predicts that perforations would occur more easily in trabeculae that are more highly mineralized (stiffer). Since both increased osteoclast activation rates and increased mineralization have been measured in osteoporotic bone, either or both may contribute to the rapid loss of trabecular bone mass observed in osteoporotic patients.

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