Results 91 to 100 of about 64,270,038 (288)

Negative valuation of undesirable outputs in evaluating the efficiency of production systems

open access: yesMATEC Web of Conferences, 2017
This paper extends a data envelopment analysis (DEA) model that considers only desirable outputs in measuring efficiencies to incorporate undesirable outputs by requiring the associated multipliers to be negative.
Kao Chiang
doaj   +1 more source

Single photons made-to-measure

open access: yesNew Journal of Physics, 2010
We investigate the efficiency of atom-cavity based photon-generation schemes to deliver single photons of arbitrary temporal shape. Our model applies to Raman transitions in three-level atoms with one branch of the transition driven by a laser pulse, and the other coupled to a cavity mode.
Vasilev, G, Ljunggren, D, Kuhn, A
openaire   +4 more sources

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Experimental Study of the Freezing Point of γ-AlO/Water Nanofluid

open access: yesAdvances in Mechanical Engineering, 2012
Nanofluids are colloidal suspensions made of nanometer-sized particles dispersed in a conventional fluid. Their unusual thermal properties explain intensive investigations for several thermal and industrial applications.
Thierry Maré   +4 more
doaj   +1 more source

Biophysical approaches for studying viral entry

open access: yesFEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Jobs-to-be-Done in Made-to-Measure Tailoring

open access: yes, 2018
This thesis examines specific jobs the customers of Janek ' a tailoring company - are trying to get done when obtaining made-to-measure garments. The goal of this thesis is to analyze the made-to-measure tailoring service through the lens of jobs-to-be-
Blatny, Matej
core   +1 more source

On Interrelation of Time and Entropy

open access: yesEntropy, 2017
A measure of time is related to the number of ways by which the human correlates the past and the future for some process. On this basis, a connection between time and entropy (information, Boltzmann–Gibbs, and thermodynamic one) is established.
Leonid M. Martyushev
doaj   +1 more source

Starting to Measure up [PDF]

open access: yes, 2020
How using outcome measures can improve school nurses ...
Lloyd, Erica
core  

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