Results 71 to 80 of about 746,005 (335)

MODEL FOR THE EVALUATION OF THE AIRPORT SECURITY SYSTEM [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2014
An airport is a complex human-factors engineering system; it is composed of many elements interconnected with numerous internal relations with a strongly pronounced role of the human factor.
Jacek SKORUPSKI, Piotr UCHROŃSKI
doaj  

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

From Fuzzy Clustering to a Fuzzy Rule-Based Classification Model [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2008
The applicability in practice of a diagnostic tool is strongly related to the physical transparency of the un- derlying models, for the interpretation of the relationships between the involved variables and for direct model inspection and validation.
Enrico Zio   +2 more
doaj   +1 more source

Modeling raccoon (Procyon lotor) habitat connectivity to identify potential corridors for rabies spread [PDF]

open access: yes, 2017
The United States Department of Agriculture (USDA), Animal and Plant Health Inspection Service (APHIS), Wildlife Services National Rabies Management Program has conducted cooperative oral rabies vaccination (ORV) programs since 1997.
Algeo, Timothy P.   +7 more
core   +1 more source

Corruption and Resource Allocation: Evidence from China [PDF]

open access: yes, 2001
Exploiting a unique data set containing transactions data from a panel of 769 Chinese state-owned enterprises between 1980 and 1989, this paper tests microeconomic implications of a pervasive form of corruption --official diversion of under-priced, in ...
Li, Wei
core   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

The Impact of Tilburg Frailty on Poststroke Fatigue in First‐Ever Stroke Patients: A Cross‐Sectional Study With Unified Measurement Tools and Improved Statistics

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Poststroke fatigue (PSF) and frailty share substantial overlap in their manifestations, yet previous research has yielded conflicting results due to the use of heterogeneous frailty assessment tools. Objective To evaluate the independent impact of frailty on PSF using a unified measurement system (Tilburg Frailty Indicator, TFI ...
Chuan‐Bang Chen   +6 more
wiley   +1 more source

A model checking approach to the parameter estimation of biochemical pathways [PDF]

open access: yes, 2008
Model checking has historically been an important tool to verify models of a wide variety of systems. Typically a model has to exhibit certain properties to be classed ‘acceptable’.
A. Aziz   +14 more
core   +1 more source

Accelerated Progression of Gait Impairment in Parkinson's Disease and REM Sleep Without Atonia

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective People with Parkinson's disease (PD) and rapid eye movement (REM) sleep without atonia (RSWA) often have more severe gait disturbances compared to PD without RSWA. The association between the presence and expression of RSWA and the rate of progression of gait impairment in PD is unknown.
Sommer L. Amundsen‐Huffmaster   +11 more
wiley   +1 more source

Shear strength of fillet welds in aluminum alloy 2219 [PDF]

open access: yes
Fillet size is discussed in terms of theoretical or design dimensions versus as-welded dimensions, drawing attention to the inherent conservatism in the design load sustaining capabilities of fillet welds.
Lovoy, C. V.
core   +1 more source

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