46 research outputs found
Implementing Offshore Remote Wind Sensing Technologies Including Protocols for Evaluation, Selection, and Validation (Extended Abstract)
This abstract contains information relevant to the use of wave information for naval operations, education, and alternative energy technologies, and was used, along with the Session Presentation, to facilitate discussion during Session 1 (the use of wave measurements to support operations)
The legislative framework regarding bullying in South African schools
Bullying in schools is a global phenomenon that has the potential to impact on children not only physically but also psychologically. In South Africa countless children fall victim to bullying, harassment and abuse at schools. A myriad of constitutional rights are infringed upon when bullying occurs, and the problem is escalating. The Protection from Harassment Act 71 of 2011 was signed and accepted into law on the 27th of April 2013. This new Act may grant relief to victims of bullying inter alia by providing for protection orders, and therefore adds to the legislative framework available to victims. However, in terms of bullying in schools, the parties to these incidents are minors and therefore a critical analysis is necessary with regard to the rights of the victim and the offender. In this context the relationship and interaction between the Protection from Harassment Act 71 of 2011, the Child Justice Act 75 of 2008, the Children's Act 38 of 2005 and the South African Schools Act 84 of 1996 call for critical analysis
A Case Study of Laser Wind Sensor Performance Validation by Comparison to an Existing Gage
A case study concerning validation of wind speed measurements made by a laser wind sensor mounted on a 190 square foot floating platform in Muskegon Lake through comparison with measurements made by pre-existing cup anemometers mounted on a met tower on the shore line is presented. The comparison strategy is to examine the difference in measurements over time using the paired-t statistical method to identify intervals when the measurements were equivalent and to provide explanatory information for the intervals when the measurements were not equivalent. The data was partitioned into three sets: not windy (average wind speed measured by the cup anemometers †6.7m/s) windy but no enhanced turbulence (average wind speed measured by the cup anemometers \u3e 6.7m/s), and windy with enhanced turbulence associated with storm periods. For the not windy data set, the difference in the average wind speeds was equal in absolute value to the precision of the gages and not statistically significant. Similar results were obtained for the windy with no enhanced turbulence data set and the average difference was not statistically significant (α=0.01). The windy with enhanced turbulence data set showed significant differences between the buoy mounted laser wind sensor and the on-shore mast mounted cup anemometers. The sign of the average difference depended on the direction of the winds. Overall, validation evidence is obtained in the absence of enhanced turbulence. In addition, differences in wind speed during enhanced turbulence were isolated in time, studied and explained
High-volume infiltration analgesia in bilateral hip arthroplasty: A randomized, double-blind placebo-controlled trial
Pathogenesis, diagnosis and management of pneumorrhachis
Pneumorrhachis (PR), the presence of intraspinal air, is an exceptional but eminent radiographic finding, accompanied by different aetiologies and possible pathways of air entry into the spinal canal. By reviewing the literature and analysing a personal case of traumatic cervical PR after head injury, we present current data regarding the pathoanatomy, clinical and radiological presentation, diagnosis and differential diagnosis and treatment modalities of patients with PR and associated pathologies to highlight this uncommon phenomenon and outline aetiology-based guidelines for the practical management of PR. Air within the spinal canal can be divided into primary and secondary PR, descriptively classified into extra- or intradural PR and aetiologically subsumed into iatrogenic, traumatic and nontraumatic PR. Intraspinal air is usually found isolated not only in the cervical, thoracic and, less frequently, the lumbosacral regions but can also be located in the entire spinal canal. PR is almost exceptional associated with further air distributions in the body. The pathogenesis and aetiologies of PR are multifold and can be a diagnostic challenge. The diagnostic procedure should include spinal CT, the imaging tool of choice. PR has to be differentiated from free intraspinal gas collections and the coexistence of air and gas within the spinal canal has to be considered differential diagnostically. PR usually represents an asymptomatic epiphenomenon but can also be symptomatic by itself as well as by its underlying pathology. The latter, although often severe, might be concealed and has to be examined carefully to enable adequate patient treatment. The management of PR has to be individualized and frequently requires a multidisciplinary regime
Autonomy of the child in the South African context: is a 12Â year old of sufficient maturity to consent to medical treatment?
International Consensus Statement on Rhinology and Allergy: Rhinosinusitis
Background: The 5 years since the publication of the first International Consensus Statement on Allergy and Rhinology: Rhinosinusitis (ICARâRS) has witnessed foundational progress in our understanding and treatment of rhinologic disease. These advances are reflected within the more than 40 new topics covered within the ICARâRSâ2021 as well as updates to the original 140 topics. This executive summary consolidates the evidenceâbased findings of the document. Methods: ICARâRS presents over 180 topics in the forms of evidenceâbased reviews with recommendations (EBRRs), evidenceâbased reviews, and literature reviews. The highest grade structured recommendations of the EBRR sections are summarized in this executive summary. Results: ICARâRSâ2021 covers 22 topics regarding the medical management of RS, which are grade A/B and are presented in the executive summary. Additionally, 4 topics regarding the surgical management of RS are grade A/B and are presented in the executive summary. Finally, a comprehensive evidenceâbased management algorithm is provided. Conclusion: This ICARâRSâ2021 executive summary provides a compilation of the evidenceâbased recommendations for medical and surgical treatment of the most common forms of RS
Floating Laser Pulse Technology: A Strategy for Great Lakes Hub Height Offshore Wind Assessments
The principal purpose of this project is to conduct a wind assessment study of Lake Michigan and to advance the body of knowledge that will allow successful offshore commercial wind energy development on the Great Lakes. The project involves the permitting and installation of the first offshore wind power assessment meteorological (MET) facilities in Michiganâs Great Lakes, utilizing Laser Pulse Technology (LPT). In addition to validating the technology, other important research that will contribute to the deployment of offshore wind technologies are being undertaken based on the guidelines established by the Michigan Great Lakes Wind Council (GLOW Council). The project has created opportunities for public dialogue and community education about offshore wind resource development.
Project collaborators include: U.S. Department of Energy, Michigan Public Service Commission, WE Energies, Sierra Club of the Great Lakes, Grand Valley State University, University of Michigan, Michigan Technological University, and Michigan State University
Implementing Offshore Remote Wind Sensing Technologies Including Protocols for Evaluation, Selection, and Validation (Extended Abstract)
This abstract contains information relevant to the use of wave information for naval operations, education, and alternative energy technologies, and was used, along with the Session Presentation, to facilitate discussion during Session 1 (the use of wave measurements to support operations)