2,674 research outputs found
Body image distortions and muscle dysmorphia symptoms among Asian men : do exercise status and type matter?
Theoretical Framework: Body image distortions and muscle dysmorphia symptoms were assessed among 78 Asian men who engaged in regular resistance training, aerobic training or did not engage in either. Method: Body fat and muscularity were measured and participants also completed the Muscle Dysmorphia Disorder Inventory. Results: Resistance trained men selected a body shape ideal that was higher in muscularity and lower in body fat. Aerobically trained men also reported higher perceived current Body Fat even though their actual levels were close to their ideal. Conclusion: The results suggest that specificity in body image distortion (e.g., perceived current-ideal versus perceived current-actual) when examining body image distortions might reduce conflicting findings in extant research
Correlated electronic states at domain walls of a Mott-charge-density-wave insulator 1T-TaS2
Domain walls in interacting electronic systems can have distinct localized
states, which often govern physical properties and may lead to unprecedented
functionalities and novel devices. However, electronic states within domain
walls themselves have not been clearly identified and understood for strongly
correlated electron systems. Here, we resolve the electronic states localized
on domain walls in a Mott-charge-density-wave(CDW) insulator 1T-TaS2 using
scanning tunneling spectroscopy. We establish that the domain wall state
decomposes into two nonconducting states located at the center of domain walls
and edges of domains. Theoretical calculations reveal their atomistic origin as
the local reconstruction of domain walls under the strong influence of electron
correlation. Our results introduce a concept for the domain wall electronic
property, the wall's own internal degrees of freedom, which is potentially
related to the controllability of domain wall electronic properties
Determining the physical conditions of extremely young Class 0 circumbinary disk around VLA1623A
We present detailed analysis of high-resolution C18O (2-1), SO (88-77), CO
(3-2) and DCO+ (3-2) data obtained by the Atacama Large
Millimeter/sub-millimeter Array (ALMA) towards a Class 0 Keplerian circumbinary
disk around VLA1623A, which represents one of the most complete analysis
towards a Class 0 source. From the dendrogram analysis, we identified several
accretion flows feeding the circumbinary disk in a highly anisotropic manner.
Stream-like SO emission around the circumbinary disk reveals the complicated
shocks caused by the interactions between the disk, accretion flows and
outflows. A wall-like structure is discovered south of VLA1623B. The discovery
of two outflow cavity walls at the same position traveling at different
velocities suggests the two outflows from both VLA1623A and VLA1623B overlays
on top of each other in the plane of sky. Our detailed flat and flared disk
modeling shows that Cycle 2 C18O J = 2-1 data is inconsistent with the combined
binary mass of 0.2 Msun as suggested by early Cycle 0 studies. The combined
binary mass for VLA1623A should be modified to 0.3 ~ 0.5 Msun.Comment: 26 pages, 20 figures, accepted by ApJ 2020.2.2
INVESTIGATIONS ON POTENTIAL OF UMBILICAL CORD LINING STEM CELLS FOR IN VITRO MODELS
Ph.DDOCTOR OF PHILOSOPH
Lna Ic Design For Cognitive Radio Implementation
This thesis presents a wideband inductorless three-stage common source (CS) low noise amplifier (LNA) with negative feedback for cognitive radio communication applications covering the range of 300 MHz to 10 GHz. Designed in Global Foundries’ 0.13 um CMOS process and through post-layout simulations over the covered band, the minimum and maximum voltage gain is 10 dB and 12.1 dB respectively whereas noise figure of 3.9 to 5.1 dB. S11 < -8.5 dB for the covered band and S11 < -10 dB is achieved up to 8.7 GHz. IIP3 achieves a minimum of -0.5dBm and maximum of 0.8 dBm at pre-layout simulations. The power consumption is 36 mW at 1.2 V. The LNA occupies an area of 26 μm × 46 μm excluding pads and 672 μm × 233 μm with pads
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