We report the experimental observation of energetically confined self-accelerating optical beams propagating along various convex trajectories. We show that, under an appropriate transverse compression of their spatial spectra, these self-accelerating beams can exhibit a dramatic enhancement of their peak intensity and a significant decrease of their transverse expansion, yet retaining both the...

Duodenal tuberculosis is an uncommon disease. It may be either extrinsic or intrinsic or both. In the extrinsic type there can either be primary duodenal involvement or compression due to enlarged paraduodenal lymph nodes. The clinical presentation can be dyspeptic or obstructive symptoms. The dyspeptic symptoms include epigastric pain, nausea, and occasional vomiting and obstructive symptoms i...

High P-T Raman measurements of solid and fluid hydrogen to above 1100 K at 70 GPa and to above 650 K in 150 GPa range, conditions previously inaccessible by static compression experiments, provide new insight into the behavior of the material under extreme conditions. The data give a direct measure of the melting curve that extends previous optical investigations by up to a factor of 4 in press...

Abstract — Improvements of Silicon technology in CMOS and BiCMOS process, is nowadays showing very interesting intrinsic characteristics. Circuit ideas and topologies are improved more and more to fit the industrial needs. Our design is a 2 GHz BiCMOS process filter based on a LC-Q enhanced topology. With a power supply of 2.7 V, the circuit consumes less than 6.1 mA. It shows at the centre fre...

We report the formation of smooth and processable silicon thin-films from single-crystal silicon-nanoparticle suspensions. Single-crystal Si-nanoparticles (1–4 nm) are produced and suspended in various solvents. Films deposited from the suspension are mechanically stable and can be patterned and processed upon deposition. Physical compression of the films is presented as a mechanism to reduce p...

Ipsilateral invasion of the cervical sympathetic plexus, leading to Horner's syndrome (miosis, enophthalmos, ptosis) in 1450% of patients [2] . Ipsilateral reflex sympathetic dystrophy in the arm, with enhanced sensitivity to touch, and skin changes. Shoulder and arm pain (from the brachial plexus invasion C8-T1) with wasting of the intrinsic hand muscles and paraesthesiae in the medial side of...

The existence of efficient ion acceleration regimes in collective laser-plasma interactions opens up the possibility to develop high-energy physics facilities in conjunction with projects for inertial confinement nuclear fusion (ICF) and neutron spallation sources. In this paper, we show that the pulse compression requests to make operative these acceleration mechanisms do not fall in contradic...

In this investigation of monocular perception of egocentric distance, the authors advocate the necessity of a perception-action approach because calibration is intrinsic to definite distance perception. A helmet-mounted camera and display were used to isolate optic flow generated by participants' head movements toward a target, and participants' reaches to place a stylus either in a target hole...

the purpose of this study is to survey cross section changes of the animal brain samples during the tension and compression tests and comparison of the experimental results for three animals: bovine, sheep, and rabbit. a linear elastic theory with considering the necking in tension and barreling in compression has been considered for brain tissue. bridgman method for tension and cross section u...

A thyroid nodule is a very common condition which can be found among 40 to 50% of general population on ultrasound. Identification of thyroid cancer cells through fine needle aspiration (FNA) is a gold standard for diagnosis of thyroid cancer. Among all thyroid nodules, thyroid cancer occupied five to ten percent, and thus a large number of patients, even with benign thyroid nodules, are recomm...