The truth revealed was when a young man, Nick Kostovic, made public his findings about the power of the Universe, the achieved knowledge he performs in the healing systems of our days. Doctors, patients, and common people thought of him as a magician who penetrated from the clouds to announce a new truth. And this is what it was-a new truth. The community of coastal Los Angeles became stunned when terminally sick people began to feel better, when invalids began to walk, when memories returned to Parkinson’s and Alzheimer’s-diseased patients. For the past thirty years, Kostovic has conducted research on the effects of neurological disorders on human beings and spent the last fifteen years working on several projects in connection with bioenergetic physical therapy.
Showing posts with label Journal of Biomedical Engineering. Show all posts
Showing posts with label Journal of Biomedical Engineering. Show all posts
Thursday, 29 June 2017
Tuesday, 6 June 2017
Linear Quadratic Tracking Control of Smooth Pursuit Eye Movements
Conventional feedback control models of the oculo motor system fail to account for the destabilizing effects of neural transmission delays. To address this shortcoming, a linear quadratic tracking algorithm used to control smoothly pursuing eye movements of various target trajectories is presented.
Based on the type of input to the system, it is shown that stability, in the presence of large motor feedback delays, can be maintained by modulating weighting factors intrinsic to the model. Conditions, such as the initial orientation of the eye relative to the location of where a target first becomes salient and the possible oscillatory nature that the reference trajectory may present, play important roles in determining the optimal cost to go motor control strategy at the onset of a tracking movement.
Thursday, 25 August 2016
Cardiopulmonary Resuscitation as a Graduation Requirement for Biomedical Engineering Students
At the end of a mountain road in Austria during the summer of
2003, I waited for a boat with my family on a dock at a large lake. Suddenly I
saw a man fall to the sidewalk. His skin had turned that ashen blue color, andit was clear to me that he was in cardiac arrest. There was a crowd of more
than 75 persons just standing and looking at him. I knew what to do when there
was no detectable pulse or breathing.
Cardio-Pulmonary Resuscitation (CPR) chest
compressions were started immediately. His skin color returned to nearly
normal. After a few minutes, a single bystander came up and said they knew how
to do breaths. At that time, recommendations were for intermittent breathing as
well as chest compressions. The stricken person made it alive to the EMSvehicle that took nearly 30 minutes to arrive. While I do not know the eventual
outcome, I do know he was successfully resuscitated using an Automated External
Defibrillator (AED). Furthermore with the quick application of CPR, he likely
had a full recovery. Unfortunately, from the crowd response at that time, there
were not enough people trained to act in this emergency situation where seconds
really count.
Tuesday, 23 August 2016
Stimuli-Responsive Hydrogels Bearing αamino acid Residues
Vinyl hydrogels bearing α-aminoacid residues have been
explored as platforms for the treatment of cancer, glaucoma and mood disorder
therapies. Ionic/ionizable groups of the L-valine, L-phenylalanine and
L-histidine residues are able to modify the swelling properties of the hydrogel
on the basis of their thermodynamic characteristics.
Greater basicity constants
of functional groups improve a greater loading of the drug and a longer
sustained-release pattern. The pH and the temperature affect the swelling ofthe hydrogel and increase ‘on demand’ the drug availability. A further stimulus
based on alternating magnetic fields can be applied on hydrogels containing
embedded magnetic nanoparticles used for site-specific controlled drug
delivery.
The diffusion process for the in vitro release of the drug
(cisplatin, doxorubicin, pilocarpine, trazodone, citalopram and paroxetine)
from the drugloaded hydrogels is mainly controlled by the drug-polymerinteraction, that in the meanwhile preservs it’s bioactivity. The different
interaction strength between the drug and the polymer may be a strategy to
develop suitable capsules for long-term therapies.
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