Results 71 to 80 of about 3,209,561 (307)

Nanomotion of bacteria to determine metabolic profile

open access: yesNanotechnology and Precision Engineering
In addition to their visible motion such as swimming (e.g., with the help of flagella), bacteria can also exhibit nanomotion that is detectable only with highly sensitive instruments, and this study shows that it is possible to detect bacterial ...
S. N. Pleskova   +6 more
doaj   +1 more source

Study on the Synthesis Method of [11C]Methionine Using Molecular Sieve as Desiccant

open access: yesKorean Journal of Clinical Laboratory Science
[11C]Methionine is used widely for brain tumor diagnosis via positron emission tomography. Moisture generated during the synthesis of [11C]methionine reduces the synthesis yield. Therefore, a desiccant is used to remove moisture.
Young Si PARK   +6 more
doaj   +1 more source

Doppler-free spectroscopy in driven three-level systems

open access: yes, 2004
We demonstrate two techniques for studying the features of three-level systems driven by two lasers (called control and probe), when the transitions are Doppler broadened as in room-temperature vapor.
Natarajan, Vasant, Rapol, Umakant D.
core   +1 more source

Probing the spectral density of a dissipative qubit via quantum synchronization [PDF]

open access: yes, 2016
The interaction of a quantum system, which is not accessible by direct measurement, with an external probe can be exploited to infer specific features of the system itself.
Galve, Fernando   +2 more
core   +2 more sources

Inpatient Food Insecurity and Pediatric Hematology Oncology Hospitalization Outcomes

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Children with cancer and blood disorders are at risk for food insecurity (FI). We aimed to describe the association of inpatient food insecurity (IFI) and hospitalization outcomes among patients admitted to the pediatric hematology oncology service. Of 325 caregivers screened for IFI, 60 (18.6%) screened positive.
Joanna M. Robles   +4 more
wiley   +1 more source

Camellia japonica Flower Extract and the Active Constituent Hyperoside Repair DNA Damage Through FUNDC1-Mediated Mitophagy Pathway for Skin Anti-Aging

open access: yesAntioxidants
Skin aging is closely related to mitochondrial dysfunction and cell cycle abnormalities, and developing intervention strategies targeting mitochondrial quality control is an important direction for anti-aging research.
Hongqi Gao   +6 more
doaj   +1 more source

A Threshold-Limited Fluorescence Probe for Viscosity

open access: yesFrontiers in Chemistry, 2019
Viscosity of body fluid is an established biomarker of pathological conditions. Abnormality of cellular viscosity occurs when cells are challenged with external stresses.
Zuhai Lei   +6 more
doaj   +1 more source

Quantitative assessment of human motion using video motion analysis [PDF]

open access: yes
In the study of the dynamics and kinematics of the human body, a wide variety of technologies was developed. Photogrammetric techniques are well documented and are known to provide reliable positional data from recorded images. Often these techniques are
Probe, John D.
core   +1 more source

System and method for moving a probe to follow movements of tissue [PDF]

open access: yes, 1981
An apparatus is described for moving a probe that engages moving living tissue such as a heart or an artery that is penetrated by the probe, which moves the probe in synchronism with the tissue to maintain the probe at a constant location with respect to
Andrews, T. W.   +3 more
core   +1 more source

Simple and reliable method of conductive SPM probe fabrication using carbon nanotubes

open access: yes, 2014
We demonstrate the procedure of Scanning Probe Microscopy (SPM) conductive probe fabrication with a single multi-walled carbon nanotube (MWNT) on a silicon cantilever pyramid.
Dremov, Vyacheslav   +3 more
core   +1 more source

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