Knowledge, Awareness and Use of Neurodynamic Mobilization in Athletes Training Among Palestinian Physiotherapists

Background: The use of Neurodynamic mobilizations to improve those qualities had not been enough studies; the aim of this research is to investigate the knowledge, use, and awareness of Palestinian physiotherapists about the Neurodyanimc mobilization (NDM) effect on the above-mentioned variables. Results: 58 physiotherapists responded with the average age of participants was 30.24 (± 8.14 years), the average years of experience were 5.58 (± 6.59 years). 60.3% of the participants attended courses in ND, 58.6% attended courses in NDM, postgraduate sport rehabilitation courses were reported by 60.3%. 58.6% reported the application of NDMs after warm-up exercise. 32.7% expressed knowledge in NDM with 39.7% 32.7% reported the knowledge of ND tests. 63.5% of the participants believe that ND is effective in the management of sport injures. Participants believed in positive the effect of the NDM on improving speed (48.3%) <, endurance (60.3%), balance (57%) and athlete performance 72.4%. ND assessment (r 5.31, p =0.00). Males had more knowledge than females in both ND tests and in NDM (p <0.05). Males had twice the chance to attend post-graduate courses. Methods: An online data collection sheet was developed by the researchers and was distributed online, special invitations were sent to physiotherapists on local websites of the Union, and social media. Conclusion: There was gender variation favorable for males in terms of the chances to attend postgraduate courses, more than half of the participants supported the positive effect of ND on athlete’s performance

Journal of clinical monitoring and computing 2016 end of year summary:monitoring cerebral oxygenation and autoregulation

In the perioperative and critical care setting, monitoring of cerebral oxygenation (ScO2) and cerebral autoregulation enjoy increasing popularity in recent years, particularly in patients undergoing cardiac surgery. Monitoring ScO2 is based on near infrared spectroscopy, and attempts to early detect cerebral hypoperfusion and thereby prevent cerebral dysfunction and postoperative neurologic complications. Autoregulation of cerebral blood flow provides a steady flow of blood towards the brain despite variations in mean arterial blood pressure (MAP) and cerebral perfusion pressure, and is effective in a MAP range between approximately 50-150 mmHg. This range of intact autoregulation may, however, vary considerably between individuals, and shifts to higher thresholds have been observed in elderly and hypertensive patients. As a consequence, intraoperative hypotension will be poorly tolerated, and might cause ischemic events and postoperative neurological complications. This article summarizes research investigating technologies for the assessment of ScO2 and cerebral autoregulation published in the Journal of Clinical Monitoring and Computing in 2016

Study of asphaltene precipitation induced formation damage during CO <inf>2</inf> injection for a Malaysian light oil

In this work, the precipitation of asphaltene from a Malaysian light oil reservoir was studies. A series of experiments were designed and carried out to examine the effect of CO 2 injection on asphaltene precipitation. Different pressures of injections were used in Dynamic flooding experiment in order to investigate the effect of pressure versus injection pore volume of CO 2 . These dynamic displacement tests simulate reservoir condition. Results show that by increasing the pore volume of injected gas asphaltene precipitation will increases, also rise in injection pressure causes less precipitation. Sandstone core plug was used to represent reservoir formation during displacement test; therefore it made it possible to study the effect of present of asphaltene on formation. It is found out that the precipitated asphaltene can reduce permeability and porosity which is not favorable during oil production

Study of asphaltene precipitation during CO <inf>2</inf> injection for Malaysian light oil reservoirs

This work focuses on asphaltene precipitation problem during dynamic displacement by CO 2 . Although CO 2 injection is one of the most important methods currently being used in enhanced oil recovery but it may change the properties of the crude oil and increase the possibility of asphaltene precipitation occurrence. The presence of asphaltene in form of precipitated, flocculated or deposited particles may alter reservoir characteristics in such a way that recovery reduction is evitable. The main concern is the effect of the asphaltene on the formation characteristics. The damage that asphaltene can cause to formation is sever, since reservoir formation is not accessible and applicable remedial methods are expensive even well shut down might be necessary. More than that sometimes the damage is irreversible. Therefore this research attempts to gain a better understanding about asphaltene precipitation induced by CO 2 injection. For this purpose a Malaysian light oil crude sample was selected since light oils are more prone to have asphaltene precipitation problem. Precipitation quantity, interaction between asphaltene and formation, in the presence of CO 2 under different injection pressures is investigated in this research. Obtained results revile that at asphaltene precipitation increases as pore volume of injected gas increases. More than that, it was observed that asphaltene precipitation decreases when injection pressure increases. © 2011 IEEE

Finger and forehead photoplethysmography-derived pulse-pressure variation and the benefits of baseline correction

To non-invasively predict fluid responsiveness, respiration-induced pulse amplitude variation (PAV) in the photoplethysmographic (PPG) signal has been proposed as an alternative to pulse pressure variation (PPV) in the arterial blood pressure (ABP) signal. However, it is still unclear how the performance of the PPG-derived PAV is site-dependent during surgery. The aim of this study is to compare finger- and forehead-PPG derived PAV in their ability to approach the value and trend of ABP-derived PPV. Furthermore, this study investigates four potential confounding factors, (1) baseline variation, (2) PPV, (3) ratio of respiration and heart rate, and (4) perfusion index, which might affect the agreement between PPV and PAV. In this work, ABP, finger PPG, and forehead PPG were continuously recorded in 29 patients undergoing major surgery in the operating room. A total of 91.2 h data were used for analysis, from which PAV and PPV were calculated and compared. We analyzed the impact of the four factors using a multiple linear regression (MLR) analysis. The results show that compared with the ABP-derived PPV, finger-derived PAV had an agreement of 3.2 ± 5.1%, whereas forehead-PAV had an agreement of 12.0 ± 9.1%. From the MLR analysis, we found that baseline variation was a factor significantly affecting the agreement between PPV and PAV. After correcting for respiration-induced baseline variation, the agreements for finger- and forehead-derived PAV were improved to reach an agreement of −1.2 ± 3.8% and 3.3 ± 4.8%, respectively. To conclude, finger-derived PAV showed better agreement with ABP-derived PPV compared to forehead-derived PAV. Baseline variation was a factor that significantly affected the agreement between PPV and PAV. By correcting for the baseline variation, improved agreements were obtained for both the finger and forehead, and the difference between these two agreements was diminished. The tracking abilities for both finger- and forehead-derived PAV still warrant improvement for wide use in clinical practice. Overall, our results show that baseline-corrected finger- and forehead-derived PAV may provide a non-invasive alternative for PPV