Results 11 to 20 of about 218,233 (310)

Assessment of Anthropometric Indices for Optimal Cut-Offs for Obesity Screening in a South African Adolescent Population

open access: yesBiology, 2021
The assessment of obesity in sub-Saharan Africa relies on cut-offs established from western populations. This study assessed anthropometric indices to determine optimal cut-off values for obesity screening in the South African adolescent population.
Godwill Azeh Engwa   +8 more
doaj   +1 more source

Microscopic nature of crystal phase quantum dots in ultrathin GaAs nanowires by nanoscale luminescence characterization

open access: yesNew Journal of Physics, 2016
Crystal phase quantum dots (CPQD) embedded in a nanowire (NW) geometry have recently emerged as efficient single photon emitters. In typical III–V semiconductor NWs such CPQDs are linked to the well-known zincblende (ZB)/wurtzite (WZ) polytypism that ...
Bernhard Loitsch   +9 more
doaj   +1 more source

Optoelectronic transport through quantum Hall edge states

open access: yesNew Journal of Physics, 2015
We use GaAs-based quantum point contacts as mesoscopic detectors to locally analyze the flow of photogenerated electrons in a two-dimensional electron gas (2DEG) at perpendicular, quantizing magnetic fields.
C Kastl   +4 more
doaj   +1 more source

Humanized β2 Integrin-Expressing Hoxb8 Cells Serve as Model to Study Integrin Activation

open access: yesCells, 2022
The use of cell-based reporter systems has provided valuable insights into the molecular mechanisms of integrin activation. However, current models have significant drawbacks because their artificially expressed integrins cannot be regulated by either ...
Thomas Bromberger   +3 more
doaj   +1 more source

GaN Heterostructures as Innovative X-ray Imaging Sensors—Change of Paradigm

open access: yesMicromachines, 2022
Direct conversion of X-ray irradiation using a semiconductor material is an emerging technology in medical and material sciences. Existing technologies face problems, such as sensitivity or resilience.
Stefan Thalhammer   +6 more
doaj   +1 more source

On the parabolicity of dipolar exciton traps and their population of excess charge carriers

open access: yesNew Journal of Physics, 2019
We study spatially trapped ensembles of dipolar excitons in coupled quantum wells by means of photoluminescence and photocurrent spectroscopy.
S Dietl   +7 more
doaj   +1 more source

A three-dimensional silicon photonic crystal nanocavity with enhanced emission from embedded germanium islands

open access: yesNew Journal of Physics, 2012
We report the realization of a silicon three-dimensional photonic crystal nanocavity containing self-assembled germanium-island emitters. The three-dimensional woodpile photonic crystal was assembled layer by layer by micromanipulation using silicon ...
N Hauke   +10 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Interrogating the immune landscape of microsatellite stable RAS‐mutated colon cancer

open access: yesMolecular Oncology, EarlyView.
COLOSSUS project RAS‐mutated MSS colon cancer study explored transcriptomics and immune cell density by immunohistochemistry (IHC), Immunoscore (IS), ISIC/TuLIS scores, mutation counts, and detected different prevalences but similar microenvironment composition across immune markers with clinical relevance for future immunotherapy combination ...
Rodrigo Dienstmann   +61 more
wiley   +1 more source

BRENTANO, Franz C. (2019). Vermischte Schriften. Sämtliche veröffentlichte Schriften, Band IX. Mit einer Einleitung von D. FISETTE. Herausgegeben von T. BINDER und A. CHRUDZIMSKI. Berlin/Boston: Walter de Gruyter.

open access: yesDaimon, 2021
Reseña de: BRENTANO, Franz C. (2019). Vermischte Schriften. Sämtliche veröffentlichte Schriften, Band IX. Mit einer Einleitung von D. FISETTE. Herausgegeben von T. BINDER und A. CHRUDZIMSKI. Berlin/Boston: Walter de Gruyter.
David Torrijos Castrillejo
doaj  

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