Results 91 to 100 of about 20,108,567 (392)

Matrix Description of Intersecting M5 Branes

open access: yes, 1998
Novel 3+1 dimensional N=2 superconformal field theories (with tensionless BPS string solitons) are believed to arise when two sets of M5 branes intersect over a 3+1 dimensional hyperplane.
Kachru, Shamit, Oz, Yaron, Yin, Zheng
core   +2 more sources

Low‐field MRI: An MR physics perspective

open access: yesJournal of Magnetic Resonance Imaging, 2019
Historically, clinical MRI started with main magnetic field strengths in the ∼0.05–0.35T range. In the past 40 years there have been considerable developments in MRI hardware, with one of the primary ones being the trend to higher magnetic fields.
J. Marques, F. Simonis, A. Webb
semanticscholar   +1 more source

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

open access: yesFEBS 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   +2 more
wiley   +1 more source

Prevalence and Risk Factors of Elevated Blood Lead in Children in Gold Ore Processing Communities, Zamfara, Nigeria, 2012

open access: yesJournal of Health and Pollution, 2016
Background. In March 2010, Medecins Sans Frontieres/Doctors Without Borders detected an outbreak of acute lead poisoning in Zamfara State, northwestern Nigeria, linked to low-technology gold ore processing.
John A. Kaufman   +10 more
doaj   +1 more source

String Scattering Amplitudes and Deformed Cubic String Field Theory

open access: yes, 2017
We study string scattering amplitudes by using the deformed cubic string field theory which is equivalent to the string field theory in the proper-time gauge.
Lai, Sheng-Hong   +3 more
core   +2 more sources

Heat engine driven by photon tunneling in many-body systems [PDF]

open access: yes, 2015
Near-field heat engines are devices that convert the evanescent thermal field supported by a primary source into usable mechanical energy. By analyzing the thermodynamic performance of three-body near-field heat engines, we demonstrate that the power ...
Ben-Abdallah, Philippe   +4 more
core   +2 more sources

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

open access: yesFEBS 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   +6 more
wiley   +1 more source

Cryogenic flux-concentrator [PDF]

open access: yes, 1969
Flux concentrator has high primary to secondary coupling efficiency enabling it to produce high magnetic fields.
Bailey, B. M., Brechna, H., Hill, D. A.
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS 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

Implementing the routine immunisation data module and dashboard of DHIS2 in Nigeria, 2014–2019

open access: yesBMJ Global Health, 2020
In 2010, Nigeria adopted the use of web-based software District Health Information System, V.2 (DHIS2) as the platform for the National Health Management Information System. The platform supports real-time data reporting and promotes government ownership
Faisal Shuaib   +22 more
doaj   +1 more source

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