Results 81 to 90 of about 702,888 (304)

Dynamics of a state-dependent delay-differential equation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations
We present a detailed study of a scalar differential equation with threshold state-dependent delayed feedback. This equation arises as a simplification of a gene regulatory model.
Tomas Gedeon   +4 more
doaj   +1 more source

Evolutionary Selection of Expectations in Positive and Negative Feedback Markets [PDF]

open access: yes
An economic environment is a feedback system, where dynamics of aggregate variables depend on individual expectations and also shape them. The type of feedback mechanism is crucial for the aggregate outcome.
Philipse, R., Hommes, C.H., Anufriev, M.
core  

Negative volatility spillovers in the unrestricted ECCC-GARCH model [PDF]

open access: yes, 2010
Copyright @ 2010 Cambridge University Press.This paper considers a formulation of the extended constant or time-varying conditional correlation GARCH model that allows for volatility feedback of either the positive or negative sign.
Karanasos, Menelaos   +3 more
core   +1 more source

PAK1 activation drives divergent resistance mechanisms to aromatase inhibition and tamoxifen in a luminal: A breast cancer model

open access: yesMolecular Oncology, EarlyView.
Breast cancer remains a major cause of cancer death in women, frequently developing endocrine therapy resistance. This study demonstrates that upregulated p21‐activated kinase 1 (PAK1) activity drives resistance to tamoxifen and long‐term estrogen deprivation in ER+ breast cancer models.
Luisa Schwarzmüller   +10 more
wiley   +1 more source

Is identity per se irrelevant? A contrarian view of self-verification effects

open access: yes, 2008
Self-verification theory (SVT) posits that people who hold negative self-views, such as depressive patients, ironically strive to verify that these self-views are correct, by actively seeking out critical feedback or interaction partners who evaluate ...
Gregg, Aiden P.
core   +1 more source

In vitro and in silico modelling of ROS1‐positive non‐small cell lung cancer reveals fusion‐dependent tyrosine kinase inhibitor responses

open access: yesMolecular Oncology, EarlyView.
Drug resistance limits treatment success in a subset of lung cancers driven by ROS1 gene alterations. Using patient‐derived cells and computer simulations, we studied three key mutations and how they affect five targeted drugs. The mutations reduced drug effectiveness in different ways by altering protein structure and behavior.
Farhan Ul Haq   +8 more
wiley   +1 more source

How leaders can use negative feedback to their advantage.

open access: yes, 2017
This short article explores how leaders can use negative feedback to their advantage by identifying their weaknesses andturning them into strengths. In order to enable their peers to give them true feedback, leaders should nurture a safeenvironment of ...
Papasava, Angeliki
core  

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

Identifying transcription factors controlling the basal expression of human MRP4 highlights a substantial role for Sp1

open access: yesFEBS Open Bio, EarlyView.
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer   +7 more
wiley   +1 more source

The stability and electromagnetic compatibility of power supply modules and systems

open access: yesФизика волновых процессов и радиотехнические системы, 2017
The main questions for designing the power supply modules and systems are considered. They are the electromagnetic compatibility of power supply modules, the stability of power supply modules and the stability of whole power supply system.
V.F. Dmitrikov   +3 more
doaj  

Home - About - Disclaimer - Privacy