Results 101 to 110 of about 3,662,390 (293)

Algorithm of face anti-spoofing based on pseudo-negative features generation

open access: yesFrontiers in Neuroscience
IntroductionDespite advancements in face anti-spoofing technology, attackers continue to pose challenges with their evolving deceptive methods. This is primarily due to the increased complexity of their attacks, coupled with a diversity in presentation ...
Yukun Ma   +4 more
doaj   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Cellular Phones Influence(s) and Impacts(s) on Social Interactions and Interpersonal Relationships [PDF]

open access: yes, 2009
This paper seeks to explore how cellular phones (cell phones/mobiles) have influenced and impacted social interactions and interpersonal relationships.
Corbett, Alexia
core   +2 more sources

Positivity in Lorentzian Barrett-Crane Models of Quantum Gravity

open access: yes, 2005
The Barrett-Crane models of Lorentzian quantum gravity are a family of spin foam models based on the Lorentz group. We show that for various choices of edge and face amplitudes, including the Perez-Rovelli normalization, the amplitude for every ...
Baez J C   +14 more
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Primal-Dual Algorithms for Non-negative Matrix Factorization with the Kullback-Leibler Divergence [PDF]

open access: yes, 2014
Non-negative matrix factorization (NMF) approximates a given matrix as a product of two non-negative matrices. Multiplicative algorithms deliver reliable results, but they show slow convergence for high-dimensional data and may be stuck away from local ...
Bach, Francis, Yanez, Felipe
core   +2 more sources

Fetal Brain Tumor Harboring a Unique ROCK1::BRAF Fusion

open access: yes
Pediatric Blood &Cancer, EarlyView.
Marllon Cindra Sant'Ana   +8 more
wiley   +1 more source

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

open access: yesFEBS 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   +3 more
wiley   +1 more source

“I Was... Put in a Cage”: The Experience of COVID-19 Home Confinement among Older Adults Living Alone in Portugal

open access: yesRevista Crítica de Ciências Sociais, 2022
This article presents findings of a qualitative study reporting older adults’ experiences of solitary home confinement during Portugal’s first COVID-19 lockdown in 2020.
José Manuel Sousa de São José   +5 more
doaj  

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