Results 141 to 150 of about 3,445,632 (296)

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Trends and enabling technologies on high-speed metro and short-reach optical transmission systems

Dianxin kexue, 2019
The optical fiber communication network is the important infrastructure for the modern information society.Thanks to the reduction of fiber loss,the improvement of transceiver devices by electro-optical-electrical conversion,the development of modulation
Lei ZHANG, Yixiao ZHU, Fan ZHANG, Zhangyuan CHEN   +3 more
doaj  

Advancing poliovirus eradication: lessons learned from piloting direct molecular detection of polioviruses in high-risk and priority geographies

Microbiology Spectrum
In the Global Polio Laboratory Network (GPLN), poliovirus (PV) screening results from acute flaccid paralysis (AFP) surveillance is based on virus isolation (VI) through cell culture, entailing long turnaround times and the amplification of live ...
Paula L. Marcet, Brandon Short, Ashley Deas, Hong Sun, Chelsea Harrington, Shahzad Shaukat, Muhammad Masroor Alam, Marycelin Baba, Adedayo Faneye, Prossy Namuwulya, Lea Necitas Apostol, Tamer Elshaarawy, John Kofi Odoom, Peter Borus, Shelina Moonsamy, Yogolelo Riziki, Marie Claire Endegue Zanga, Mesfin Tefera, Anfumbom K. W. Kfutwah, Salmaan Sharif, Varja Grabovac, Cara C. Burns, Nancy Gerloff   +22 more
doaj   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

FEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf, Nicholas F. Downing, Kaitlyn M. Mills, Samuel C. Metcalfe, Alexander E. Kritzer, Lindsey D. Mayo, Peter C. Hollenhorst   +6 more
wiley   +1 more source

Advances in direct optical detection [PDF]

Analytical and Bioanalytical Chemistry, 2020
Baeumner, Antje J., Gauglitz, Guenter, Homola, Jiří   +2 more
openaire   +3 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Single photodiode-based direct detection for Twin-SSB-QPSK signal in optical fiber communication systems

Tongxin xuebao
To address the high-cost issue of twin single sideband quadrature phase shift keying (Twin-SSB-QPSK) signals in optical transmission, a optical fiber communication system was proposed, in which a single photodetector (PD) was employed at the receiver to ...
ZHANG Hongbo, LIU Jiao, LING Weiwei, ZHANG Min, WAN Feng, CAI Ju   +5 more
doaj  

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Direct detection of single molecules by optical absorption

, 2010
The advent of single molecule optics has had a profound impact in fields ranging from biophysics to material science, photophysics, and quantum optics.
Celebrano, Michele, Kukura, Philipp, Renn, Alois, Sandoghdar, Vahid   +3 more
core