537 research outputs found
Quantum periods for SQCD around the superconformal point
We study the Argyres-Douglas theories realized at the superconformal point in
the Coulomb moduli space of supersymmetric QCD with
hypermultiplets in the Nekrasov-Shatashvili limit of the
Omega-background. The Seiberg-Witten curve of the theory is quantized in this
limit and the periods receive the quantum corrections. By applying the WKB
method for the quantum Seiberg-Witten curve, we calculate the quantum
corrections to the Seiberg-Witten periods around the superconformal point up to
the fourth order in the parameter of the Omega background.Comment: 1+29 pages; v2: references added; v3: published version; v4: typos
correcte
Production of overdense plasmas by launching 2,45 GHz electron cyclotron waves in a helical device
For production of low temperature plasmas with low collisionality, 2.45GHz
microwave power up to 20kW is injected perpendicularly to the toroidal field at
very low toroidal field BtComment: 12th International Congress on Plasma Physics, 25-29 October 2004,
Nice (France
Spinal cord stimulation for the treatment of pain and toe ulceration associated with systemic sclerosis: a case report
Systemic sclerosis is a complex disease characterized by extensive fibrosis, microvascular alterations, and additional sequelae. Microvascular alterations can cause painful ulcers and necrosis; however, conservative or surgical treatment is often challenging in terms of healing. The study aimed to describe a toe ulcer with systemic sclerosis and its' successful treatment with spinal cord stimulation. An 83-year-old woman, who was diagnosed with systemic sclerosis over the past decade, was distressed by a non-healing toe ulcer for an extended period of time. The patient underwent spinal cord stimulation treatment with the expectation of pain relief and an improvement in microcirculatory insufficiency. Her pain scales and microcirculation improved, and the toe ulcer healed. Furthermore, the frequency of Raynaud's symptoms was reduced, and the patient's pain decreased. There was no recurrence of the ulcer and she no longer needed a cane for walking
Ultrastrong tunable coupler between superconducting LC resonators
We investigate the ultrastrong tunable coupler for coupling of
superconducting resonators. Obtained coupling constant exceeds 1 GHz, and the
wide range tunability is achieved both antiferromagnetics and ferromagnetics
from MHz to 604 MHz. The ultrastrong coupler is composed of rf-SQUID
and dc-SQUID as tunable junctions, which connected to resonators via shared
aluminum thin film meander lines enabling such a huge coupling constant. The
spectrum of the coupler obviously shows the breaking of the rotating wave
approximation, and our circuit model treating the Josephson junction as a
tunable inductance reproduces the experimental results well. The ultrastrong
coupler is expected to be utilized in quantum annealing circuits and/or NISQ
devices with dense connections between qubits.Comment: 12pages, 7 figure
Ocular infestation by a juvenile leech, Myxobdella sinanensis in Japan
[Purpose] The case of ocular infestation by a leech is rare. We reported that Myxobdella sinanensis infests conjunctiva. [Observations] A 5-year-old girl presented with blood clots in the inner corner of the left eye, and a history bloody eye discharge and bloody tears for 5 days. She was prescribed 0.5% levofloxacin ophthalmic drops for conjunctival damage. However, her parent watched a worm moving in her conjunctiva while taking a bath. She presented again the same day, and a worm was found in the left eye of the lower conjunctival fornix and was adsorbed to the inner corner. We removed a worm under eye drop anesthesia, the next day the patient had no symptoms. We captured the worm, and it was identified morphologically and genetically as Myxobdella sinanensis. This was the first case reported of Myxobdella sinanensis be infestation in a human. [Conclusions and Importance] The ecological trait of Myxobdella sinanensis still did not remain clear, so this case report was helpful to find out a life cycle of Myxobdella sinanensis. As the outdoor population continues to increase, the cases of human parasites such as leech are expected to increase. When a patient with bloody eye discharge and bloody tears presents, we should carefully examine the conjunctiva and ocular surfaces, and interview recent history of exposure to stream water
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