Results 131 to 140 of about 340,758 (290)

Grid-Oscillator Beam-Steering Array [PDF]

open access: yes, 1994
Recently Liao and York (see IEEE Trans. Microwave Theory Tech., vol.41, no.10, p.1810, 1993) showed that beam-steering can be achieved by detuning the end elements of a coupled-oscillator array.
Li, Shijie, Rutledge, David B.
core  

Interplay of Probe Stability and Oscillation During Very‐High‐Power Short‐Duration Ablation in Pulmonary Vein Isolation for Atrial Fibrillation

open access: yesPacing and Clinical Electrophysiology, EarlyView.
This graphical abstract presents a comprehensive analysis of probe stability and oscillation during very high‐power short‐duration (vHPSD) pulmonary vein isolation (PVI) for atrial fibrillation. The findings indicate that oscillation velocity serves as a more reliable predictor of impedance drop and temperature changes than contact force alone ...
Ernesto Cristiano   +7 more
wiley   +1 more source

Structural Elucidation and Engineering of the (S)‐scoulerine 2‐O‐Methyltransferase Enabling Regioselective Epiberberine Biosynthesis in Coptis chinensis

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Protoberberine alkaloids are a characteristic group of natural products in Coptis plants known for their notable pharmacological activities. However, the structural similarity and the substrate promiscuity of their biosynthetic enzymes have left the precise synthetic pathways remain unclarified, posing challenges to regulate product formation.
Jun Song   +14 more
wiley   +1 more source

Nonparametric Estimators of Dose-Response Functions [PDF]

open access: yes
We propose two semiparametric estimators of the dose-response function based on spline techniques. Under uncounfoundedness, the generalized propensity score can be used to estimate dose-response functions (DRF) and marginal treatment effect functions. In
BIA Michela   +2 more
core   +1 more source

What Cytokines Can Tell Us About the Pathogenesis of Breast Implant-Associated Anaplastic Large Cell Lymphoma (BIA-ALCL).

open access: yesAesthetic surgery journal, 2019
Cytokines, their receptors, and downstream signaling partners, especially JAK1/2 and STAT3, are key biomarkers in lymphoproliferative disorders including systemic anaplastic large cell lymphoma (ALCL).
M. Kadin
semanticscholar   +1 more source

New medicine for soil restoration: biological soil crust capsules facilitate native plant and soil microbe establishment

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Restoration in drylands is challenging because of harsh climates, requiring creative methods and organisms like biocrusts for restoration of degraded lands. Biocrusts are thin, coherent soil surface layers prevalent in drylands, engineered, and inhabited by communities of organisms including mosses, lichens, and cyanobacteria ...
Madeline Mayorga   +7 more
wiley   +1 more source

Development of a Segmental Bioelectrical Impedance Spectroscopy Device for Body Composition Measurement

open access: yesSensors, 2019
Whole-body bioelectrical impedance analysis for measuring body composition has been well-explored but may not be sensitive enough to changes in the trunk compared to changes in the limbs. Measuring individual body segments can address this issue.
Thomas Cannon, JungHun Choi
doaj   +1 more source

Young in-Old out: a new evaluation based on Generalized Propensity Score [PDF]

open access: yes
This paper aims at evaluating the effect of the amount of older workers exits (aged 50 or more) on the entries of youngsters at a local labour market level, during years 1985 - 2002. If we can observe some effect of the exits on the entries, it will shed
Michela Bia   +2 more
core  

Validity of the Bottle Buoyancy Model for Body Fat Determination [PDF]

open access: yes, 2017
International Journal of Exercise Science 10(1): 87-96, 2017. We investigated a modification of the bottle buoyancy (BB) method in comparison to single frequency, bioelectric impedance analysis (BIA) as a valid noninvasive method of percent body fat (%BF)
Danzl, Kalvin   +5 more
core   +1 more source

Are Raw BIA Variables Useful for Predicting Resting Energy Expenditure in Adults with Obesity?

open access: yesNutrients, 2019
This study aimed to develop and validate new predictive equations for resting energy expenditure (REE) in a large sample of subjects with obesity also considering raw variables from bioimpedance-analysis (BIA).
M. Marra   +6 more
semanticscholar   +1 more source

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