Results 91 to 100 of about 11,212,414 (344)

Three-dimensional imaging of random radiation sources [PDF]

, 1996
A method to image random three-dimensional source distributions is proposed. We show that, by using a Michelson stellar interferometer in a prescribed fashion, one is able to measure a special form of a three-dimensional degree of coherence.
Rosen, Joseph, Yariv, Amnon
core  

A new approach to measure reduction intensity on cores and tools on cobbles: the Volumetric Reconstruction Method

, 2020
Knowing to what extent lithic cores have been reduced through knapping is an important step toward understanding the technological variability of lithic assemblages and disentangling the formation processes of archaeological assemblages.
Cueva-Temprana, A., Lombao, D., Morales, J., Mosquera, M., Rabuñal, J.   +4 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Fuzzy image segmentation using location and intensity information [PDF]

, 2003
The segmentation results of any clustering algorithm are very sensitive to the features used in the similarity measure and the object types, which reduce the generalization capability of the algorithm.
Ali, M. Ameer, Dooley, Laurence S., Karmakar, Gour C.   +2 more
core  

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Assessing Ground Motion Intensity Measures and Structural Damage Measures in Underground Structures: A Finite Element Analysis of the Daikai Subway Station

Applied Sciences
Research on the characterization of ground motion intensity and damage of underground structures is limited, while reasonable selection of ground motion intensity measures and structural damage measures is a crucial prerequisite for structural seismic ...
Tong Liu, Yulong Han, Qinghe Wang, Yong Yuan   +3 more
doaj   +1 more source

Self-similar stable processes arising from high-density limits of occupation times of particle systems

, 2007
We extend results on time-rescaled occupation time fluctuation limits of the $(d,\alpha, \beta)$-branching particle system $(0\alpha/\beta$. We also give high-density limits for the systems with finite intensity measures (without high density no limits ...
Anna Talarczyk, D.A. Darling, D.A. Dawson, G. Samorodnitsky, I. Iscoe, I. Iscoe, I. Iscoe, J.-D. Deuschel, J.T. Cox, K. Fleischmann, L. Breiman, L.G. Gorostiza, Luis G. Gorostiza, M. Zhang, P. Billingsley, T. Bojdecki, T. Bojdecki, T. Bojdecki, T. Bojdecki, T. Bojdecki, T. Bojdecki, T.Y. Lee, Tomasz Bojdecki, W.M. Hong, Z. Dong   +24 more
core   +2 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Pain in older adults with dementia: Brazilian validation of Pain Intensity Measure for Persons with Dementia (PIMD). [PDF]

Arq Neuropsiquiatr, 2023
Foraciepe M, Silva AEVF, Fares TG, Santos FC.   +3 more
europepmc   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source