Results 61 to 70 of about 34,352 (308)

MASCOT: a mechanism for attention-based scale-invariant object recognition in images [PDF]

open access: yes, 2000
The efficient management of large multimedia databases requires the development of new techniques to process, characterize, and search for multimedia objects.
Brause, Rüdiger W.   +2 more
core  

The effect of omega invariant on some topological graph indices [PDF]

open access: yes, 2021
For a realizable set of non-negative integers, it is well-known that there are many ways of realizing it as a graph having this set as degree sequence.
Güneş, A.Y.   +3 more
core   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Representation of 3D and 4D Objects Based on an Associated Curved Space and a General Coordinate Transformation Invariant Description

open access: yesEURASIP Journal on Advances in Signal Processing, 2007
This paper presents a new theoretical approach for the description of multidimensional objects for which 3D and 4D are particular cases. The approach is based on a curved space which is associated to each object.
Eric Paquet
doaj   +2 more sources

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

The Second Maximum Mostar Index of Unicyclic Graphs With Given Diameter

open access: yesJournal of Mathematics
Topological invariants are key tools for studying the physicochemical and thermodynamic properties of chemical compounds. Recently, a new bond-additive distance-based graph invariant called the Mostar index has been developed.
Muhammad Amer Qureshi   +4 more
doaj   +1 more source

Omega Index of Line and Total Graphs

open access: yesJournal of Mathematics, 2021
A derived graph is a graph obtained from a given graph according to some predetermined rules. Two of the most frequently used derived graphs are the line graph and the total graph.
Musa Demirci   +3 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Invariant Graph Propagation in Constraint-Based Local Search [PDF]

open access: yes
In constraint-based local search, an assignment to the search variables is improved upon by an iterative procedure that replaces the current assignment with a similar assignment.
Pearson, Justin   +2 more
core   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

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