introduction : heat shock proteins (hsps) are molecular chaperones involved in protein folding, stability and turnover, and due to their role in cancer progression, the effect of low power laser irradiation (lpli) on the expression of hsp70 and hsp90 in jurkat e6.1 t-lymphocyte leukemia (jelt) cell line was investigated in vitro. methods : jetl cells were irradiated with lpli at 635nm and 780m ...

This paper uses a real options approach to examine the impact of ramping rate restrictions imposed on hydro operations to protect aquatic ecosystems. We consider the effect on hydro plant value in order to inform policy decisions. A novelty of the paper is in examining the optimal operation of a prototype hydro power plant with electricity prices modelled as a regime switching process. We show ...

Power quality monitoring of many sites of a utility produces an enormous amount of data. The analysis of this data can take place in many different ways at many different levels. This paper provides a conceptual framework for describing the data analysis process. It can be represented graphically in the form of a triangle with data flow from the bottom upwards and enables consistency in PQ anal...

The purpose of this paper is to explore the obstructions faced by Libyan distribution networks in implementing a power quality program (PQP). It is also to state the benefits, which would accrue by implementing a PQP, which would make a major impact on Libyan distribution networks (LDNs), and which could be applied and adapted internationally. In order to achieve these objectives, an extensive ...

The aim of this study was to investigate the analgesic efficacy of low power laser therapy in patients with knee osteoarthritis (OA). The study design was randomised, placebo-controlled and single blinded. Sixty patients with knee OA according to the American College of Rheumatology criteria were included and randomly assigned to three treatment groups: active laser with dosage of 3 J/per painf...

conclusions this study confirmed the efficacy of pw lllt on biomechanical strength, trabecular bone volume, callus volume, and osteoblast number of repairing callus in a complete tibial osteotomy animal model at a relatively late stage of the bone healing process. materials and methods this experimental study was conducted at shahid beheshti university of medical sciences in tehran, iran. we pe...

background: neuropathic pain (np) is one of the most suffering medical conditions that often fail to respond to certain pain therapy. although its exact etiology is still unknown the role of reactive oxygen species (ros) and oxidative stress were explored by many researchers. neuropathies either central or peripheral lead to painful condition as well as social and economic isolation, thus vario...

background: chronic low back pain is among a wide spread musculoskeletal conditions that is related to disability with high economy cost. there are several treatment modalities for controlling chronic low back pain (clbp), among them high intensity laser therapy (hilt) and epidural blocks (eb) use more commonly. this study aimed to evaluate the benefits and hazards of each of these two methods....

conclusions caffeic acid treatment reduced bacterial growth and resulted in a decreased number of colony formation. the simultaneous effect of caffeic acid and laser at three time courses showed a synergic effect in reducing colony formation compared to the control and caffeic acid, and laser alone. objectives the aim of this study was to investigate the effect of caffeic acid and low-power las...

introduction: : low level laser therapy (lllt) is gaining acceptance in clinical applications. for example, it is used as therapeutic modality in the repair of diabetic foot ulcer when conventional therapy was not effective, separately. the aim of this study is to determine the effect of local and travenous lllt for the healing of diabetic foot ulcer. methods:   this study contains 74 diabetic ...