Results 31 to 40 of about 1,311,589 (257)

Coherent phonon induced optical modulation in semiconductors at terahertz frequencies [PDF]

open access: yes, 2013
The coherent modulation of electronic and vibrational nonlinearities in atoms and molecular gases by intense few-cycle pulses has been used for high-harmonic generation in the soft X-ray and attosecond regime, as well as for Raman frequency combs that ...
Constantinescu Anca Monia   +4 more
core   +2 more sources

Yeast Life Span Extension by Depletion of 60S Ribosomal Subunits Is Mediated by Gcn4 [PDF]

open access: yesCell, 2008
In nearly every organism studied, reduced caloric intake extends life span. In yeast, span extension from dietary restriction is thought to be mediated by the highly conserved, nutrient-responsive target of rapamycin (TOR), protein kinase A (PKA), and Sch9 kinases.
Steffen, Kristan K.   +13 more
openaire   +2 more sources

Broadband enhanced transmission through the stacked metallic multi-layers perforated with coaxial annular apertures

open access: yes, 2011
This paper theoretically and experimentally presents a first report on broadband enhanced transmission through stacked metallic multi-layers perforated with coaxial annular apertures (CAAs).
Bahk   +32 more
core   +1 more source

PAH Emission from Ultraluminous Infrared Galaxies [PDF]

open access: yes, 2007
We explore the relationships between the Polycyclic Aromatic Hydrocarbon (PAH) feature strengths, mid-infrared continuum luminosities, far-infrared spectral slopes, optical spectroscopic classifications, and silicate optical depths within a sample of 107
Aitken D. K.   +17 more
core   +4 more sources

PHYSICAL PROPERTIES AND RATE OF DIFFUSION TRANSETHOSOME CURCUMIN USING A COMBINATION OF TWEEN 60 AND SPAN 60 AS SURFACTANT

open access: yesInternational Journal of Applied Pharmaceutics, 2021
Objective: Curcumin penetration can be increased by formulating it into the transethosome system. Surfactant is one of the transethosome components that affect the physical properties and penetration of vesicles. In this study, a combination of two surfactants was used to see the effect of surfactants on physical properties and curcumin penetration ...
ANISA AMALIA   +2 more
openaire   +2 more sources

A series of five population-specific Indian brain templates and atlases spanning ages 6 to 60 years [PDF]

open access: yesHuman Brain Mapping, 2020
AbstractAnatomical brain templates are commonly used as references in neurological MRI studies, for bringing data into a common space for group-level statistics and coordinate reporting. Given the inherent variability in brain morphology across age and geography, it is important to have templates that are as representative as possible for both age and ...
Bharath Holla   +21 more
openaire   +3 more sources

Pediatric Oncology Nursing Competencies in Latin America and the Caribbean: A Scoping Review to Inform Practice, Education, and Research

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Nurses are central to cancer care for children and adolescents, yet no comprehensive synthesis has defined essential core competencies for pediatric oncology nursing (PON) practice internationally, particularly in Latin America and the Caribbean (LAC).
Luís Carlos Lopes‐Júnior   +7 more
wiley   +1 more source

PERBANDINGAN TINGGI BADAN DAN RENTANG TANGAN PADA ANAK BALITA USIA 1-5 TAHUN [PDF]

open access: yes, 2015
Background: Height measurement was very important to toddlers and preschool children. Deformity or certain abnormality in toddler and preschool children caused height measurement was not possible.
Setiawati EM, Mexitalia   +1 more
core   +2 more sources

Serrated trailing edges for improving lift and drag characteristics of lifting surfaces [PDF]

open access: yes, 1992
An improvement in the lift and drag characteristics of a lifting surface is achieved by attaching a serrated panel to the trailing edge of the lifting surface.
Bushnell, Dennis M.   +3 more
core   +1 more source

Physicochemical properties and release behavior of Span 60/Tween 60 niosomes as vehicle for α-Tocopherol delivery

open access: yesLWT, 2017
Abstract In this study, Niosomes, as vehicles for α-Tocopherol were formulated applying film hydration method to improve the availability and stability of α-Toc. Parameters affecting encapsulation efficiency (EE), mean size, polydispersity index and zeta potential were investigated, along with the different molar ratio of Span 60/Tween 60, presence ...
Ladan Basiri   +2 more
openaire   +1 more source

Home - About - Disclaimer - Privacy