Placebo-controlled evaluation of direct electrical current administration for palmoplantar hyperhidrosis

2004 ◽  
Vol 43 (7) ◽  
pp. 503-505 ◽  
Author(s):  
Yunus Karakoc ◽  
Ertugrul H. Aydemir ◽  
M. Tunaya Kalkan
2002 ◽  
Vol 41 (9) ◽  
pp. 602-605 ◽  
Author(s):  
Yunus Karakoç ◽  
Ertuğrul H. Aydemir ◽  
M. Tunaya Kalkan ◽  
Gaye Ünal

2010 ◽  
Vol 40 (2) ◽  
pp. 106 ◽  
Author(s):  
Tancan Uysal ◽  
Mihri Amasyali ◽  
Huseyin Olmez ◽  
Yildirim Karslioglu ◽  
Omer Gunhan

2019 ◽  
Vol 93 (2) ◽  
pp. 92-95 ◽  
Author(s):  
Suzannah M. Schmidt-Malan ◽  
Cassandra L. Brinkman ◽  
Kerryl E. Greenwood-Quaintance ◽  
Melissa J. Karau ◽  
Jayawant N. Mandrekar ◽  
...  

Author(s):  
Mark Hallett ◽  
Alfredo Berardelli

This article focuses on the potential therapeutic uses of transcranial magnetic stimulation (TMS) in movement disorders. The brain can be stimulated with low levels of direct electrical current, called direct current polarization (tDCS). High-frequency repetitive TMS might increase brain excitability and be used for therapy in Parkinson's disease. Single sessions with TMS, however, have not proven to be very effective. Treatment with tDCS has been performed in some open studies with some success, but these results need confirmation. Physiological findings in dystonia reveal a decrease in intracortical inhibition. There have been a few studies of patients with Tourette's syndrome with mixed results. To date, clinical results with TMS in movement disorders have been mixed, and more work will be needed to clarify the potential clinical role of TMS.


Electronics ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 433 ◽  
Author(s):  
Suvetha Poyyamani Sunddararaj ◽  
Shriram Srinivasarangan Rangarajan ◽  
Subashini N

Power electronic converters are used to transform one form of energy to another. They are classified into four types depending upon the nature of the input and output voltages. The inverter is one among those types; it converts direct electrical current into alternating electrical current at desired frequency. Conventional types of inverters are capable of producing voltage at the output terminal that can only switch between two levels. The range of output voltage generated at the output is low when they are used for high power applications. To improve the voltage profile and efficiency of the overall system, multilevel inverters (MLIs) are introduced. In multilevel inverters the voltage at the output terminal is generated from several DC voltage levels fed at its input. The generated output is more appropriate to a sine wave and the dv/dt rating is also less leading to the reduction in EMI. Though they possess many advantages compared to the conventional inverters, the structural complexity and triggering techniques involved in designing multilevel inverters are high. Many studies are being carried out in defining new topologies of MLI with reduced switch as well as with the implementation of different PWM techniques. This paper will provide an extensive review on variety of MLI configurations based on the parameters such as the number of switches, switching techniques, symmetric, asymmetric, hybrid topologies, configurations based on applications, THD and power quality.


2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Maria Ruiz-Ruigomez ◽  
Jon Badiola ◽  
Suzannah M. Schmidt-Malan ◽  
Kerryl Greenwood-Quaintance ◽  
Melissa J. Karau ◽  
...  

New strategies are needed for prevention of biofilm formation. We have previously shown that 24 hr of 2,000 µA of direct current (DC) reduces Staphylococcus epidermidis biofilm formation in vitro. Herein, we examined the effect of a lower amount of DC exposure on S. epidermidis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Propionibacterium acnes, and Candida albicans biofilm formation. 12 hr of 500 µA DC decreased S. epidermidis, S. aureus, E. coli, and P. aeruginosa biofilm formation on Teflon discs by 2, 1, 1, and 2 log10 cfu/cm2, respectively (p<0.05). Reductions in S. epidermidis, S. aureus, and E. coli biofilm formation were observed with as few as 12 hr of 200 µA DC (2, 2 and 0.4 log10 cfu/cm2, resp.); a 1 log10 cfu/cm2 reduction in P. aeruginosa biofilm formation was observed at 36 hr. 24 hr of 500 µA DC decreased C. albicans biofilm formation on Teflon discs by 2 log10 cfu/cm2. No reduction in P. acnes biofilm formation was observed. 1 and 2 log10 cfu/cm2 reductions in E. coli and S. epidermidis biofilm formation on titanium discs, respectively, were observed with 12 hr of exposure to 500 µA. Electrical current is a potential strategy to reduce biofilm formation on medical biomaterials.


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