Results 21 to 30 of about 351,289 (221)

Evaluation of Skinfolds Based Predictive Equations for Estimating Body Fat Percentage in Older Adults: A Comparison Using Digital Adipometer (Lipowise) and Dual-Energy X-Ray Absorptiometry (DXA). [PDF]

open access: yesClin Obes
ABSTRACT Accurate assessment of body fat percentage (%BF) is essential for predicting health risks in older adults, as age‐related changes affect fat distribution and measurement accuracy. While dual‐energy x‐ray absorptiometry (DXA) is a standard reference, it is costly and less accessible.
de Oliveira GB   +4 more
europepmc   +2 more sources

Periarticular bone mineral content in rheumatoid arthritis and arthrosis of the hip. Dual photon X-ray absorptiometry in 53 cases

open access: yes, 1993
The bone mineral content (BMC) was determined by dual photon X-ray absorptiometry prior to hip replacement in 22 patients with rheumatoid arthritis and 31 with arthrosis.
Åkesson, Kristina,   +3 more
core   +2 more sources

Photon Absorptiometry in Three Component Systems [PDF]

open access: yes, 1990
The non-invasive measurement of the mass of bone is a clinically relevant problem. The bone is one component of a composite system. At the spine it may include fat, lean and bone mineral.
Farrell, Thomas
core   +1 more source

Sarcopenia is common in ulcerative colitis and correlates with disease activity [PDF]

open access: yesIntestinal Research
Background/Aims Association of sarcopenia with disease severity in ulcerative colitis (UC) is not clearly defined. We planned to estimate the prevalence of sarcopenia in patients with UC as per the revised definition and its relation with the disease ...
Pardhu B Neelam   +10 more
doaj   +1 more source

Quantum detector tomography of a time-multiplexed superconducting nanowire single-photon detector at telecom wavelengths [PDF]

open access: yes, 2013
Superconducting nanowire single-photon detectors (SNSPDs) are widely used in telecom wavelength optical quantum information science applications. Quantum detector tomography allows the positive-operator-valued measure (POVM) of a single-photon detector ...
Natarajan, C.M.   +23 more
core   +1 more source

Associations of Ultra-Processed Food Intake with Body Fat and Skeletal Muscle Mass by Sociodemographic Factors [PDF]

open access: yesDiabetes & Metabolism Journal
Background The effects of excessive ultra-processed food (UPF) consumption on body composition measures or sociodemographic disparities are understudied in Korea.
Sukyoung Jung   +3 more
doaj   +1 more source

Three-compartment body composition changes in elite rugby league players during a super league season, measured by dual-energy X-ray absorptiometry. [PDF]

open access: yes, 2011
This study investigated the acute changes in body composition that occur over the course of a competitive season in elite rugby league players. Twenty elite senior players from an English Super League rugby league team underwent a total-body dual-energy ...
O'Hara, J   +5 more
core   +1 more source

Comparison of volumetric and areal bone mineral density in CT and scout scans using spectral detector technology

open access: yesEuropean Radiology Experimental, 2023
Background To determine whether denoised areal bone mineral density (BMD) measurements from scout scans in spectral detector computed tomography (CT) correlate with volumetric trabecular BMD for opportunistic osteoporosis screening.
Johannes Hammel   +8 more
doaj   +1 more source

Single photon source characterization with a superconducting single photon detector [PDF]

open access: yes, 2005
Superconducting single photon detectors (SSPD) based on nanopatterned niobium nitride wires offer single photon counting at fast rates, low jitter, and low dark counts, from visible wavelengths well into the infrared.
Mirin, R.P.   +6 more
core   +1 more source

Influence of refractive index matching on the photon diffuse reflectance [PDF]

open access: yes, 2002
Photon migration in a randomly inhomogeneous, highly scattering and absorbing semi-infinitemediumwith a plane boundary is considered by aMonte Carlo (MC) technique. The employed MC technique combines the statistical weight scheme and real photon paths
Churmakov, D. Y.   +2 more
core   +3 more sources

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