Preparation and Properties of Mattel Oxide Nanoparticles by Pulse Laser Ablation in Liquid as Photo-Catalysis

Zinc, nickel and silver oxide were prepared by the method of pulsed ablation laser in liquid, with different preparation conditions, where the number of pulses was changed (25, 50 and 75) and the frequency was 1 Hz and the energy was 600 mJ and at room temperature. We have used UV-visible spectroscopy, field emission scanning electron microscopy (FSEM), the EDX system, then these materials were added to the local dye and the photo-catalytic activity was applied to them using a UV-500 lamp for different periods of time (0, 30, 60 and 120 mint) and they acted as photo-catalysts.

Operative Therapy of Parkinson's Disease and the Role of Neurologist

Dopaminergic agents are still the mainstay of therapy in Parkinson's disease. Such dopamine replacement therapy results in a reduction in motor symptoms in the early stages of the disease. However, dopaminergic agents will cause motor (motor fluctuations and dyskinesia) and nonmotor (sensory, autonomic, and psychiatric) complications, 50% will occur after 5 years, The operative approach has been shown to be effective in improving motor symptoms in PD. Deep brain stimulation (DBS), which is the second largest finding after levodopa, is still the first choice of operative treatment for PD, however, other operative therapies such as ablative therapy (radiofrequency, stereotactic radiosurgery, focused ultrasound thermal ablation, laser interstitial thermal therapy) have almost the same effectiveness. with DBS. As primary care physicians, it is very important for neurologists to understand the role in operative therapy that is currently developing. Keywords: Parkinson's disease, surgery, neurologist, therapy.

Forty Years of the Applications of Stark Broadening Data Determined with the Modified Semiempirical Method

The aim of this paper is to analyze the various uses of Stark broadening data for non-hydrogenic lines emitted from plasma, obtained with the modified semiempirical method formulated 40 years ago (1980), which are continuously implemented in the STARK-B database. In such a way one can identify research fields where they are applied and better see the needs of users in order to better plan future work. This is done by analysis of citations of the modified semiempirical method and the corresponding data in international scientific journals, excluding cases when they are used for comparison with other experimental or theoretical Stark broadening data or for development of the theory of Stark broadening. On the basis of our analysis, one can conclude that the principal applications of such data are in astronomy (white dwarfs, A and B stars, and opacity), investigations of laser produced plasmas, laser design and optimization and their applications in industry and technology (ablation, laser melting, deposition, plasma during electrolytic oxidation, laser micro sintering), as well as for the determination of radiative properties of various plasmas, plasma diagnostics, and investigations of regularities and systematic trends of Stark broadening parameters.

Mass separated particle flux from a laser-ablation metal cluster source

Flux waveforms of aluminum cluster beams supplied from a laser-ablation cluster source were precisely investigated under various source conditions such as background pressure, ablation laser intensity, and nozzle structure. A time-of-flight mass spectroscopy revealed that aluminum clusters with sizes up to 200 were generated and the amount of the clusters could be maximized by choosing a proper background pressure (~2 MPa) and an ablation laser fluence (~40 mJ/cm2). Flux waveforms of clusters having specific sizes were carefully reconstructed from the observed mass spectra. It is found that the pulse widths of the aluminum cluster beams were typically about 100 µs and much smaller than that of the monoatomic aluminum beam, indicating that the cluster formation was limited in a relatively small volume in the laser-ablated vapor. Introducing a conical nozzle having a large open angle was also found to enhance the cluster beam velocity and reduce its pulse width. A velocity measurement of particles in the cluster beam was conducted to examine the velocity spread of the supplied clusters. We found that the aluminum clusters were continuously released from the source for about 100 µs and this release time mainly determined the pulse width of the cluster beam, suggesting that controlling the behavior of an ablated vapor plume in the waiting room of the cluster source holds the key to drastically improving the cluster beam flux.

Other therapeutic interventions

Breakthrough pain is a heterogeneous condition. Non-pharmacological interventions include: rubbing/massage, application of heat, application of cold, distraction techniques, relaxation techniques, hypnotherapy/hypnosis, transcutaneous electrical nerve stimulation (TENS), and acupuncture. But most of these have not been subject to rigorous study. Anaesthetic interventions are usually utilized in patients with uncontrolled background pain, but they are sometimes used in patients with uncontrolled breakthrough pain. A variety of different techniques are available. Peripheral (local anaesthetic) nerve blockade and neuraxial analgesia delivery may be used. Non-surgical stabilization, surgical stabilization, corticosteroid instillation, alcohol instillation, phenol instillation, cryoablation, radiofrequency ablation, laser ablation, cementoplasty/vertebroplasty, balloon kyphoplasty, and MR-guided focused ultrasound surgery are other strategies, most of which have not been subject to rigorous scientific investigation. Non-opioid analgesics are a diverse group of drugs. Non-opioid analgesics may have a role in the management of breakthrough pain. Data on the use of most non-opioid analgesics is limited.