Results 51 to 60 of about 50,281 (233)

Application of S-Transform in ISAR Imaging [PDF]

open access: yesElectronics, 2019
In inverse synthetic aperture radar (ISAR) imaging, time-frequency analysis is the basic method for processing echo signals, which are reflected by the results of time-frequency analysis as each component changes over time. In the time-frequency map, a target’s rigid body components will appear as a series of single-frequency signals in the low ...
Bo Zang   +3 more
openaire   +2 more sources

Identification of seniors at risk scoring in geriatric trauma: Exploring clinical outcome correlations

open access: yesJournal of Emergencies, Trauma and Shock, 2022
Introduction: Geriatric trauma patients (GTP) make up an increasing percentage of the overall trauma population. Due to frailty, GTP are at an increased risk of morbidity and readmission.
Stephen D Dingley   +10 more
doaj   +1 more source

Decoherence and asymptotic entanglement in open quantum dynamics

open access: yes, 2007
In the framework of the theory of open systems based on completely positive quantum dynamical semigroups, we determine the degree of quantum decoherence of a harmonic oscillator interacting with a thermal bath.
Isar, Aurelian
core   +1 more source

Sampling design may obscure species–area relationships in landscape-scale field studies [PDF]

open access: yes, 2020
We investigated 1) the role of area per se in explaining anuran species richness on reservoir forest islands, after controlling for several confounding factors.
Bueno, Anderson Saldanha   +3 more
core   +1 more source

Single‐Cell and Spatial Transcriptomic Profiling of Penile Squamous Cell Carcinoma Reveals Dynamics of Tumor Differentiation and Immune Microenvironment

open access: yesAdvanced Science, EarlyView.
This study uses single‐nucleus RNA sequencing and spatial transcriptomics to investigate penile squamous cell carcinoma (PSCC). It reveals that PSCC tumor cells mimic normal penile epithelium differentiation, independent of HPV status. The Tum_1 subtype shows basal stem‐like characteristics and promotes invasiveness. HPV‐positive basal stem‐like tumors
Hongjian Song   +37 more
wiley   +1 more source

Fine‐Tuning NIR‐Absorbing BODIPYs for Photoacoustic Detection of Hypochlorous Ion (OCl−)

open access: yesChemistry – An Asian Journal, Volume 20, Issue 6, March 17, 2025.
High selectivity for hypochlorous ion over other competing reactive oxygen species was achieved by optimizing different regioisomers of conjugation‐extended, near‐infrared‐absorbing BODIPYs for photoacoustic imaging. Abstract Highly reactive oxygen and nitrogen species (ROS/RNS) play crucial roles in various pathological conditions.
Prosenjit Isar   +7 more
wiley   +1 more source

A logical analysis of fixpoint theorems [PDF]

open access: yesarXiv, 2022
We prove a fixpoint theorem for contractions on Cauchy-complete quantale-enriched categories. It holds for any quantale whose underlying lattice is continuous, and applies to contractions whose control function is sequentially lower-semicontinuous. Sufficient conditions for the uniqueness of the fixpoint are established.
arxiv  

MYC: The Guardian of Its Own Chaos

open access: yesBioEssays, EarlyView.
MYC is an oncogene that drives tumorigenesis through enhanced transcription and replication. Paradoxically, MYC induces transcriptional and replicative stress and acts as a resilience factor against these stressors. We discuss how MYC balances these stressors to promote tumor growth while evading immune detection and propose strategies to target MYC ...
Abdallah Gaballa   +2 more
wiley   +1 more source

Online monitored characterization of Phocaeicola vulgatus for organic acid production using anaerobic microtiter plate cultivations

open access: yesBiotechnology Progress, Volume 41, Issue 2, March/April 2025.
Abstract Phocaeicola vulgatus (formerly Bacteroides vulgatus), an anaerobic gut bacterium, produces several organic acids. Research on P. vulgatus is still in its infancy. However, a detailed understanding of P. vulgatus growth and metabolism is essential for its assessment as an organic acid producer.
Laura Keitel   +4 more
wiley   +1 more source

Non-Cooperative Target Attitude Estimation Method Based on Deep Learning of Ground and Space Access Scene Radar Images

open access: yesMathematics, 2023
Determining the attitude of a non-cooperative target in space is an important frontier issue in the aerospace field, and has important application value in the fields of malfunctioning satellite state assessment and non-cooperative target detection in ...
Chongyuan Hou   +9 more
doaj   +1 more source

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