Results 81 to 90 of about 1,879,187 (329)

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Effect of Fluctuating Flow Rate of Fracturing Pump on Vibration Characteristics of High-Pressure Manifold

Shiyou jixie, 2021
The operation stability of high-pressure manifold in fracturing process is of great significance to ensuring oil and gas field exploitation, therefore, it is awfully necessary to study the fluid-solid coupling vibration characteristics of high-pressure ...
Zhang Yongxue, He Tao, Fan Jianchun, Xu Ao, Ji Kaizhuo   +4 more
doaj  

A laser excitation scheme for $^{229\text{m}}$Th

, 2017
Direct laser excitation of the lowest known nuclear excited state in $^{229}$Th has been a longstanding objective. It is generally assumed that reaching this goal would require a considerably reduced uncertainty of the isomer's excitation energy compared
Kazakov, Georgy, Pálffy, Adriana, Seiferle, Benedict, Stellmer, Simon, Thirolf, Peter G., von der Wense, Lars, Weitenberg, Johannes   +6 more
core   +2 more sources

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

Magnetic Excitations in the Quasi-1D Ising-like Antiferromagnet TlCoCl$_3$

, 2005
Neutron inelastic scattering measurements have been performed in order to investigate the magnetic excitations in the quasi-1D Ising-like antiferromagnet TlCoCl$_3$.
Breitling W., Goff J. P., Ishimura N., Matsubara F., Nagler S. E., Nishiwaki Y., Shiba H., Shiba H., Villain J., Yoshizawa H.   +9 more
core   +1 more source

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

FEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

The role and implications of mammalian cellular circadian entrainment

FEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +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

Tailoring laser-generated plasmas for efficient nuclear excitation by electron capture

, 2018
The optimal parameters for nuclear excitation by electron capture in plasma environments generated by the interaction of ultra-strong optical lasers with solid matter are investigated theoretically.
Gunst, Jonas, Keitel, Christoph H., Pálffy, Adriana, Wu, Yuanbin   +3 more
core   +1 more source

Excitation Number: Characterizing Multiply Excited States

Journal of Chemical Theory and Computation, 2017
How many electrons are excited in an electronic transition? In this Letter, we introduce the excitation number η to answer this question when the initial and final states are each modeled by a single-determinant wave function. We show that calculated η values lie close to positive integers, leading to unambiguous assignments of the number of excited ...
Giuseppe M. J. Barca, Andrew T. B. Gilbert, Peter M. W. Gill   +2 more
openaire   +3 more sources