Results 111 to 120 of about 26,494,628 (344)

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Diversification's effect on firm value

open access: yes, 1995
We estimate diversification's effect on firm value by imputing stand-alone values for individual business segments. Comparing the sum of these stand-alone values to the firm's actual value implies a 13% to 15% average value loss from diversification ...
Philip G. Berger, E. Ofek
semanticscholar   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Numerically Efficient Average-Value Model for Voltage-Source Converters in Nodal-Based Programs

open access: yesIEEE Open Journal of Power Electronics
Discrete detailed models of high-frequency switching voltage source converters (VSCs) are accurate but computationally expensive in simulations of large power-electronics-based systems.
SEYYEDMILAD EBRAHIMI   +2 more
doaj   +1 more source

DAMPAK PEMECAHAN SAHAM TERHADAP PERUBAHAN PENGEMBALIAN SAHAM PADA PERUSAHAAN YANG GO PUBLIK DI BURSA EFEK INDONESIA [PDF]

open access: yes, 2010
Policy of stock split is the issuer company's efforts to keep the stock remains in the optimal trading range by increasing the number of shares. An information content test is required to see the reaction of a stock split announcement. This study aims to
Nanang, Kurniawan
core  

Average persistence in random walks

open access: yes, 1998
We study the first passage time properties of an integrated Brownian curve both in homogeneous and disordered environments. In a disordered medium we relate the scaling properties of this center of mass persistence of a random walker to the average ...
Burkhardt T. W.   +8 more
core   +2 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Loop-closure events during protein folding: Rationalizing the shape of Phi-value distributions

open access: yes, 2005
In the past years, the folding kinetics of many small single-domain proteins has been characterized by mutational Phi-value analysis. In this article, a simple, essentially parameter-free model is introduced which derives folding routes from native ...
Weikl, Thomas R.
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

Accurate Average Value Modeling of Synchronous Machine-Rectifier System Considering Stator Resistance

open access: yesIranian Journal of Electrical and Electronic Engineering, 2009
An accurate average value model of synchronous machine-rectifier system considering the effect of stator resistance is derived in this paper. A proper voltage-behind-reactance synchronous machine model without any approximations is used for the generator
M. Shahnazari, A. Vahedi
doaj  

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