Results 51 to 60 of about 15,697,759 (397)

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

The Interest Rate - Exchange Rate Nexus: Exchange Rate Regimes and Policy Equilibria [PDF]

open access: yesSSRN Electronic Journal, 2009
We study a credible Markov-perfect monetary policy in an open New Keynesian economy with incomplete financial markets. We demonstrate the existence of two discretionary equilibria. Following a shock the economy can be stabilised either 'quickly' or 'slow', both dynamic paths satisfy conditions of optimality and time-consistency.
Christoph Himmels, Tatiana Kirsanova
openaire   +3 more sources

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

Exchange-Rate Exposure of Multinationals: Focusing on Exchange- Rate Issues [PDF]

open access: yesSSRN Electronic Journal, 2001
This paper examines exchange-rate exposure of multinationals (MNEs) in light of detailed exchange rate data. Specifically, using MNE-specific exchange rates and accounting for the possibility that exchange-rate crises may impact a firm differently than periods of normal fluctuations, estimates suggest ¼ of all MNEs had significant exchange rate ...
openaire   +1 more source

The Shocks Matter: Improving Our Estimates of Exchange Rate Pass-Through

open access: yesJournal of International Economics, 2015
A major challenge for monetary policy has been predicting how exchange rate movements will impact inflation. We propose a new focus: incorporating the underlying shocks that cause exchange rate fluctuations when evaluating how these fluctuations ‘pass ...
Kristin Forbes   +2 more
semanticscholar   +1 more source

Exchange Rate Predictability in a Changing World [PDF]

open access: yes, 2014
An expanding literature articulates the view that Taylor rules are helpful in predicting exchange rates. In a changing world, however, Taylor rule parameters may be subject to structural instabilities, for example in the aftermath of the Global Financial
Joseph P. Byrne   +2 more
semanticscholar   +1 more source

Screening for lung cancer: A systematic review of overdiagnosis and its implications

open access: yesMolecular Oncology, EarlyView.
Low‐dose computed tomography (CT) screening for lung cancer may increase overdiagnosis compared to no screening, though the risk is likely low versus chest X‐ray. Our review of 8 trials (84 660 participants) shows added costs. Further research with strict adherence to modern nodule management strategies may help determine the extent to which ...
Fiorella Karina Fernández‐Sáenz   +12 more
wiley   +1 more source

Statistical Analysis of the Exchange Rate of Bitcoin

open access: yesPLoS ONE, 2015
Bitcoin, the first electronic payment system, is becoming a popular currency. We provide a statistical analysis of the log-returns of the exchange rate of Bitcoin versus the United States Dollar.
Jeffrey Chu, S. Nadarajah, S. Chan
semanticscholar   +1 more source

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