Results 91 to 100 of about 3,814,816 (395)

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

Narrowing band gap chemically and physically: conductive dense hydrocarbon

open access: yesCommunications Materials
Enhancing intermolecular interactions can reduce the band gap energy of organic molecules. Consequently, certain polycyclic aromatic hydrocarbons – typically wide-band-gap insulators – may undergo insulator-to-metal transitions under simple compression ...
Takeshi Nakagawa   +16 more
doaj   +1 more source

Emergent superconductivity in an iron-based honeycomb lattice initiated by pressure-driven spin-crossover

open access: yesNature Communications, 2018
Up to now, all iron-based high-T c superconductors contain a square iron lattice. Here, Wang et al. report the observation of superconductivity in an iron honeycomb lattice accompanied with pressure-driven spin-crossover, in-plane lattice collapse and ...
Yonggang Wang   +14 more
doaj   +1 more source

Optimization of slender wings for center-of-pressure shift due to change in Mach number [PDF]

open access: yes
It is observed that the center of pressure on a wing shifts as the Mach number is changed. Such shifts are in general undesirable and are sometimes compensated for by actively shifting the center of gravity of the aircraft or by using active stability ...
Andersen, Carl M.
core   +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

The Effect of Back Belt on Maximum Displacement and Center of Pressure Velocity in Different Lifting Styles

open access: yesPhysical Treatments, 2014
Purpose: Mechanical loading is said to be an important factor in the development of low back pain (LBP). One of the main concerns in manual material handling (MMH) tasks is lifting loads, as this activity is present in most jobs.
Maryam Saba   +3 more
doaj  

Controllable multicolor emission from initially non-emissive organic molecules by pressure engineering

open access: yesNature Communications
Developing smart luminescent materials with off-on switchable responsiveness, which enables dark-to-bright state transitions in response to external stimuli, has garnered great interest across various domains.
Zhihao Xiao   +8 more
doaj   +1 more source

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

Crystalline polymeric phases of sulphur dioxide

open access: yesCommunications Chemistry
SO2 is a molecule of significant industrial and geochemical importance, known for its role in sulphuric acid production and its natural occurrence in volcanic processes.
Huichao Zhang   +7 more
doaj   +1 more source

Pressure induced structural phase transition in solid oxidizer KClO$_3$: A first-principles study

open access: yes, 2013
High pressure behavior of potassium chlorate (KClO$_3$) has been investigated from 0-10 GPa by means of first principles density functional theory (DFT) calculations.
Ghule, Vikas D.   +2 more
core   +1 more source

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