Results 51 to 60 of about 1,985,541 (297)

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

open access: yesFEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer   +7 more
wiley   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

Business Cycle Accounting for the COVID-19 Recession

open access: yesNotas Económicas, 2022
We apply the Business Cycle Accounting framework to the COVID-19 recession in the Euro Area and the United States. We conclude that the efficiency wedge had the most important role in the Euro Area, followed by the labor and investment wedges.
Daniel Fernandes
doaj   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Financial frictions and the extensive margin of activity [PDF]

open access: yesResearch in Economics, 2015
This paper evaluates the role of financial intermediaries, such as banks, in the extensive margin of activity. We build a DSGE model that combines the endogenous determination of the number of firms operating on the goods market with financial frictions through a financial accelerator mechanism.
Poutineau, Jean-Christophe   +1 more
openaire   +6 more sources

Firm heterogeneity, financial frictions and ambiguity

open access: yesJournal of Economic Dynamics and Control, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Carbonari L., Maurici F.
openaire   +2 more sources

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang   +10 more
wiley   +1 more source

Financial frictions and optimal monetary policy in an open economy [PDF]

open access: yes
A growing number of papers have studied positive and normative implications of financial frictions in DSGE models. We contribute to this literature by studying the welfare-based monetary policy in a two-country model characterized by financial frictions,
Marcin Kolasa, Giovanni Lombardo
core   +2 more sources

Alternative Monetary Policy Rules in a Small Open Economy with Financial Frictions: The Case of Korea

open access: yesEast Asian Economic Review, 2011
This paper first shows an empirical result of VAR that Korean economy has experienced a severe economic contraction to an exogenous country spread shock.
Yongseung Jung
doaj   +1 more source

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