Optical vortices, which carry orbital angular momentum (OAM), can be flexibly produced and measured with infrared and visible light. Their application is an important research topic for super-resolution imaging, optical communications and quantum optics. However, only a few methods can produce OAM beams in the extreme ultraviolet (XUV) or X-ray, and controlling the OAM on these beams remains challenging. Here we apply wave mixing to a tabletop high-harmonic source, as proposed in our previous work, and control the topological charge (OAM value) of XUV beams. Our technique enables us to produce first-order OAM beams with the smallest possible central intensity null at XUV wavelengths. This work opens a route for carrier-injected laser machining and lithography, which may reach nanometre or even angstrom resolution. Such a light source is also ideal for space communications, both in the classical and quantum regimes.

These results are congruent with previous findings that implementing research in practice is a complex process. They indicate that individual nurses' knowledge about research may not be as important as the process by which organizations implement research. However, the Barriers Scale measures general perceptions about barriers to research utilization and not nurses' specific experiences with barriers to implementing particular research.

No significant benefit with shoulder strapping was demonstrated and reasons for this are discussed. Range of movement in the hemiplegic shoulder is lost very early and any preventive treatments need to begin within the first 1-2 days after a stroke.

Background:The purpose of the present study was to describe a profile of Australian paediatric occupational therapy practice in terms of theories, assessments and interventions used with the most frequently seen client groups. Methods: An ex post facto survey design was utilised. A purpose-designed survey was mailed to 600 occupational therapists identified by OT Australia as working in paediatrics. Results: The response rate was 55% (n = 330). Respondents in the sample worked chiefly with children with developmental delays, learning disabilities, neurological impairments, and infants/toddlers. Theoretical models used by paediatric clinicians that were common to the most frequently seen client groups focused on sensory integration/multisensory approaches, occupational performance, and client-centred practice. Assessment tools most frequently used were the Test of Visual Motor Integration, Sensory Profile, BruininksOseretsky Test of Motor Proficiency, Handwriting Speed Test, and Motor-Free Visual Perception Test. The most often used treatment methods across the four most frequently seen client groups were parent/caregiver education, sensory integration/stimulation techniques, and managing activities of daily living. Conclusions: Paediatric occupational therapists appeared to draw on a range of theoretical models. With the exception of the Sensory Profile, the assessment and treatment methods most frequently used are not congruent with the most commonly used theoretical models. It is critical that the assessment and treatment methods used are conceptually consistent with the theoretical models that guide practice. Occupational therapists need to examine the evidence and determine whether their clinical practice is grounded in the best contemporary theoretical models, assessments and interventions.

No abstract

Paediatric occupational therapists were surveyed regarding their practices in Canada and Australia. Two hundred and eighty-nine Canadian occupational therapists and 330 Australian occupational therapists participated representing response rates of 28.9% and 55% respectively. The majority of respondents were female (98%), between 30 and 49 years of age (69%), had a bachelor's degree, worked on average 10.5 years in paediatrics and spent well over 50% of their work time in direct client care. The largest client diagnostic groups in both countries were those with developmental delays, learning disabilities and neurological disorders. Diagnostic groups were used as an organizing framework to portray theory, assessment and intervention use. Overall, the theoretical models cited most frequently in both countries were: Sensory Integration, Sensory Processing/Sensory Diet, Client-Centred Practice, and Occupational Performance Model. Australian therapists employed the Occupational Performance Model (Australia) for all groups, while it was rarely utilized in Canada. Common assessment tools in both Australia and Canada were the Peabody Developmental Motor Scales, Developmental Test of Visual Motor Integration, and the Bruininks-Oseretsky Test of Motor Proficiency. Intervention methods focused on: parental/care-giver education; activities of daily living/self-care skills training; client education; environmental modification; assistive devices; sensory integration techniques; sensory stimulation and sensory diet treatment methods; and neurodevelopmental techniques.

Health care professionals, including occupational therapists, are required to work collaboratively with other disciplines in order to provide high-quality care to their clients. As such, it is paramount that health care professional students learn about the professional roles of others and teamwork through interprofessional education (IPE). However, students are often educated in isolation from other disciplines and difficulties with clinically-based IPE have been acknowledged. Therefore, the purpose of this study was to evaluate occupational therapy students' perceptions of the use of digital video disc (DVD) simulations as a learning tool for IPE and practice placement education. Eleven DVD simulations were developed by Monash University and a team of health care professionals. Students from the Bachelor of Occupational Therapy programme at Monash University viewed two or more simulations, and their perceptions were elicited using a mixed methodology approach consisting of a self-report questionnaire (n = 19) and three focus groups. Overall, the DVD simulations were perceived positively as a useful tool for IPE, to supplement practice placement education by occupational therapy students. Although the students did not feel that the simulations could replace actual practice placements, the cost benefit of using DVD simulations to teach, promote and facilitate IPE should be further investigated.

Neurodevelopmental treatment (NDT) is widely used by clinicians when working with children diagnosed with neurological dysfunction, such as cerebral palsy, high-risk/low-birthweight infants or traumatic brain injury. The objective of this project was to determine the efficacy of NDT, used with a group of paediatric subjects diagnosed with a neurological dysfunction, through the completion of a systematic search and review of the relevant published research literature. Using a computerised literature search strategy of nine databases, expert consultation, and a hand search of 14 relevant journals and reference lists, 147 relevant citations were identified for consideration. Of the 147 articles reviewed, 17 met the inclusion criteria for further review. These studies were assessed for concealment of treatment allocation (Shulz et al 1995), quality assessment of randomised clinical trial using the Jadad scale (Jadad et al 1996) and level of evidence using the Sackett scale (Sackett 1989). A level of agreement between the two independent reviewers was calculated for each step of the systematic review process using the kappa statistic (κ). Tables containing the details and status of the 17 studies are included. Overall, the results regarding the efficacy of NDT were largely inconclusive since there were a similar number of published research studies supporting the benefit of NDT intervention (n=6) as compared with no benefit (n=9). One study did not specifically address the efficacy of NDT, while another study was unclear as to whether or not NDT was beneficial. The studies that included the use of NDT with paediatric subjects diagnosed with cerebral palsy also had inconsistent results regarding the efficacy of NDT. The studies that included the use of NDT with high-risk/low-birthweight infants did not support the usefulness of NDT with this paediatric client group. A detailed description of the systematic review process used in the completion of this paper is also included.