Results 151 to 160 of about 365,054 (347)

The Vector Equivalence Technique [PDF]

open access: yesarXiv, 1992
We present the Vector Equivalence technique. This technique allows a simple and systematic calculating of Feynman diagrams involving massive fermions at the matrix element level. As its name suggests, the technique allows two Lorentz four-vectors to serve as an equivalent of two external fermions. In further calculations, traces involving these vectors
arxiv  

Label‐Free Dual‐Modal Photoacoustic/Ultrasound Localization Imaging for Studying Acute Kidney Injury

open access: yesAdvanced Science, EarlyView.
This work develops a 3D label‐free photoacoustic/super‐resolution ultrasound imaging system as a comprehensive non‐invasive tool for acute kidney injury (AKI) study. This technique visualizes the intricate structure of renal microvessels and provides critical physiological insights, including renal hemodynamics and oxygenation.
Shensheng Zhao   +5 more
wiley   +1 more source

Analysis of Diagnostics (Part II): Prevalence, Linear Independence, and Unsupervised Learning [PDF]

open access: yesarXiv
This is the second manuscript in a two-part series that uses diagnostic testing to understand the connection between prevalence (i.e. number of elements in a class), uncertainty quantification (UQ), and classification theory. Part I considered the context of supervised machine learning (ML) and established a duality between prevalence and the concept ...
arxiv  

Smooth, Efficient, and Interruptible Zooming and Panning [PDF]

open access: yesarXiv, 2018
This paper introduces a novel technique for smooth and efficient zooming and panning based on dynamical systems in hyperbolic space. Unlike the technique of van Wijk and Nuij, the animations produced by our technique are smooth at the endpoints and when interrupted by a change of target.
arxiv  

TRIM25‐Mediated INSIG1 Ubiquitination Promotes MASH Progression Through Reprogramming Lipid Metabolism

open access: yesAdvanced Science, EarlyView.
TRIM25‐mediated ubiquitination of INSIG1 serves as a key driver of lipid metabolism dysregulation in MASH progression. It identifies a novel small‐molecule inhibitor, C27H26N2O4S, which effectively inhibits TRIM25 activity, reducing lipid accumulation and inflammation.
Hao Zhang   +8 more
wiley   +1 more source

Rational Design of MOF‐Based Multifunctional Bio‐Nanoreactor for Efficient Detection and Photo‐Degradation of Chloramphenicol

open access: yesAdvanced Science, EarlyView.
A multi‐functional photo‐enzymatic nanoreactor HRP@Fe‐NU‐1003 is developed through co‐immobilization of horseradish peroxidase and FeCl2 on a photosensitive metal–organic frameworks NU‐1003. This material showcases remarkable sensitivity and efficacy in both detecting and subsequently photo‐degrading chloramphenicol residues in food products.
Lu Ran   +5 more
wiley   +1 more source

A Versatile High‐Throughput Single‐Cell Screening Platform for Profiling Antigen‐Specific Long‐Lived B Cells in Blood and Bone Marrow

open access: yesAdvanced Science, EarlyView.
The MoSMAR‐chip platform provides a high‐throughput and cost‐effective tool for identifying and characterizing antigen‐specific antibody‐secreting cells (ASCs) and memory B cells (MBCs) at the single‐cell level. The ASCs from coronavirus disease 2019 (COVID‐19) vaccine‐immunized mice were successfully analyzed, revealing diverse neutralizing antibodies
Tian Zhao   +13 more
wiley   +1 more source

Determinación de la hormona luteinizante (LH) en plasma por un método inmunoenzimático

open access: yesRevista Cubana de Investigaciones Biomédicas, 2002
Se presentaron los resultados del montaje y la estandarización de un método inmunoenzimático (EIA) para la determinación de la hormona luteinizante (LH), que utiliza un anticuerpo policlonal y un anticuerpo monoclonal producidos ambos en el laboratorio ...
Edelis Castellanos Puerto   +4 more
doaj  

Identification of Tumor‐Specific Surface Proteins Enables Quantification of Extracellular Vesicle Subtypes for Early Detection of Pancreatic Ductal Adenocarcinoma

open access: yesAdvanced Science, EarlyView.
Pancreatic ductal adenocarcinoma (PDAC) extracellular vesicle (EV) surface protein assay operates via a two‐step workflow – Step 1: Click chemistry‐mediated enrichment of PDAC EVs by EV Click Beads, in the presence of one of the three trans‐cyclooctene‐grafted PDAC EV‐specific antibodies; Step 2: Quantification of the enriched PDAC EVs by reverse ...
Chen Zhao   +27 more
wiley   +1 more source

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