Results 91 to 100 of about 690,548 (321)
FEBS 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
Sovereign Credit Ratings Methodology: An Evaluation
IMF Working Papers, 2002 This paper describes and evaluates the sovereign credit ratings methodologies of Standard & Poor's, Moody's Investors Service, and Fitch Ratings. A simple definition of ratings failure-based on ratings stability-is proposed and tested, pointing to falling failure rates, consistent upside bias, and strong interagency correlation.
openaire +3 more sources
An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots
FEBS Letters, EarlyView.This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino +7 more
wiley +1 more source
A critique on the proposed use of external sovereign credit ratings in Basel II [PDF]
, 2003 This paper deals with the proposed use of sovereign credit ratings in the "Basel Accord on Capital Adequacy" (Basel II) and considers its potential effect on emerging markets financing.
Kräussl, Roman
core +2 more sources
Sovereign Credit Rating Announcements and Baltic Stock Markets
Organizations and Markets in Emerging Economies, 2011 This study examines whether sovereign credit rating announcements convey price relevant information to investors in Baltic stock markets, and tests the degree of anticipation and price reaction.
Asta Klimavičienė
doaj +1 more source
The role and implications of mammalian cellular circadian entrainment
FEBS Letters, EarlyView.At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley +1 more source
Do Global Credit Rating Agencies Think Globally? The Information Content of Firm Ratings around the World [PDF]
What is the information content of firm ratings? We disentangle the relative contribution to firms? ratings of sovereign risks and individual firms? performance indicators, reportedly employed by rating agencies. We reach three conclusions.
Ferri, Giovanni, Li-Gang Liu
core
Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS 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
Estimating Default Probabilities of Emerging Market Sovereigns: A New Look at a Not-So-New Literature [PDF]
The January 2001 proposal for a New Basel Capital Accord has renewed the interest in obtaining default probabilities for various types of borrowers. This paper uses a panel logit model to estimate default probabilities of 78 emerging market countries ...
Marcel Peter
core
Sovereign credit ratings and their impact on recent financial crises [PDF]
, 2000 This paper discusses the role of the credit rating agencies during the recent financial crises. In particular, it examines whether the agencies can add to the dynamics of emerging market crises.
Kräussl, Roman
core +1 more source