Research to Practice: The Most Important Member: Facilitating the Focus Person\u27s Participation in Person Centered Planning

This brief summarizes research that explored the participation of young people in person centered planning, and gives specific recommendations to assist facilitators in maximizing student participation

Research to Practice: Building Authentic Visions: How to Support the Focus Person in Person Centered Planning

This brief summarizes research on behavior during a planning session that increased or decreased participation of the focus person. Recommendations challenge team members to think about how their own behavior influences the focus person\u27s participation

Range-based relative navigation for femto-spacecraft swarms

Femto-spacecraft, characterised by a total mass of under 100 g, are the smallest category of active spacecraft that are currently classified. If this technology is scaled to use many devices for distributed sensing applications, there can be unique functional benefits over traditional space systems. Determining the location of femto-spacecraft within a networked swarm would add utility for scientific investigation and enable in-orbit navigation without relying on Earthbased tracking or on-board GPS. With extremely limited space and computing power on such platforms, this thesis proposes methods for relative navigation enabled by range estimates obtained via networking. This is experimentally demonstrated using received signal strength indication (RSSI) data as a coarse range metric within a highly interconnected network of devices. The first part of this thesis is the development of a series of range-based relative positioning algorithms intended for centralised, decentralised, and distributed computation. These are tested in simulation by modelling varying levels of inaccuracy in the range estimates provided. Relative navigation techniques are then presented, modelling the scenario of a swarm of femtospacecraft deployed into low Earth orbit from a larger carrier spacecraft. Several ejection strategies are proposed using a model of the relative dynamics to propagate trajectories. These scenarios are simulated for real-time relative navigation using Kalman filtering techniques that use the relative positioning algorithms as partial linear state observers. A network communications protocol enabling full interconnection within the swarm is then developed for experimental testing of these navigation strategies. Small development kits are used as femto-spacecraft proxies for embedded software development. Following this, a path loss model is experimentally developed to characterise the relationship between RSSI and range in an outdoor testing environment over a length-scale of 1-150 m. This model is then used to convert RSSI data into range estimates, used as inputs to the relative positioning algorithms. Relative navigation is demonstrated on an outdoor 120 m × 60 m sports pitch. This demonstration highlights the ability of the algorithms to fuse coarse proximity data and localise without any additional sensors or equipment Finally, the application of distributed in-situ sensing is analysed in simulation to investigate the trade-offs of using a larger number of devices of lower positioning accuracy and sensor measurement accuracy, as a comparison between the use of femto-spacecraft swarms and traditional space systems

Polarized Light Microscopy Study on the Reentrant Phase Transition in a (Ba1-xKx) Fe2As2 Single Crystal with x=0.24

A sequence of structural/magnetic transitions on cooling is reported in the literature for hole-doped iron-based superconductor (Ba1 − xKx)Fe2As2 with x = 0.24. By using polarized light microscopy, we directly observe the formation of orthorhombic domains in (Ba1 − xKx)Fe2As2 (x = 0.24) single crystal below a temperature of simultaneous structural/magnetic transition TN ~ 80 K. The structural domains vanish below ~30 K, but reappear below T = 15 K. Our results are consistent with reentrance transformation sequence from high-temperature tetragonal (HTT) to low temperature orthorhombic (LTO1) structure at TN ~ 80 K, LTO1 to low temperature tetragonal (LTT) structure at Tc ~ 25 K, and LTT to low temperature orthorhombic (LTO2) structure at T ~ 15 K

Development of a 10g Femto-satellite with Active Attitude Control

This paper describes the initial design of a Femto-satellite with active attitude control. It has a structure with a matchbox form factor, measures 3.5 x 3.5 x 0.5cm, and uses three miniaturized orthogonal magnetorquers as actuators for attitude control. It also features short range RF communication at 868 MHz for demonstrating satellite networking and swarming around a CubeSat as a host. Preliminary test results obtained from a prototype device weighing 10g are given, including IMU based attitude determination, miniaturized magnetorquers, a custom-built Helmholtz coil system, active attitude control and RF communications

Effect of controlled point-like disorder induced by 2.5 MeV electron irradiation on nematic resistivity anisotropy of hole-doped (Ba,K)Fe2_2As2_2

In-plane anisotropy of electrical resistivity was studied in samples of the hole-doped Ba$_{1-x}$K$_x$Fe$_2$As$_2$ in the composition range $0.21 \leq x \leq 0.26$ where anisotropy changes sign. Low-temperature ($\sim$20~K) irradiation with relativistic 2.5 MeV electrons was used to control the level of disorder and residual resistivity of the samples. Modification of the stress-detwinning technique enabled measurements of the same samples before and after irradiation, leading to conclusion of anisotropic character of predominantly inelastic scattering processes. Our main finding is that the resistivity anisotropy is of the same sign irrespective of residual resistivity, and remains the same in the orthorhombic $C_2$ phase above the re-entrant tetragonal transition. Unusual $T$-linear dependence of the anisotropy $\Delta \rho \equiv \rho_a(T)-\rho_b(T)$ is found in pristine samples with $x=$0.213 and $x=$0.219, without similar signatures in either $\rho_a(T)$ or $\rho_b(T)$. We show that this feature can be reproduced by a phenomenological model of R.~M.~Fernandes {\it et al.} Phys. Rev. Lett. {\bf 107},217002 (2011). We speculate that onset of fluctuations of nematic order on approaching the instability towards the re-entrant tetragonal phase contributes to this unusual dependence

Assessment of commercially available computerized neurocognitive testing in the adolescent concussed athlete: A retrospective analysis.

Background: Clinicians frequently use computer-based neurocognitive assessments to aid in the diagnosis and management of Sport Related Concussion (SRC). With practitioners using varied Neuro-Cognitive Assessment Tools (NCAT), questions arise concerning among NCAT and how these differences may affect patient care. The purpose of the current study is to offer a comparative analysis of two widely accepted, commercially available computer-based neurocognitive testing modalities in the adolescent concussed athlete. Hypothesis: There will be a difference between the C3 Logix® vs ImPACT® scoring in the IRPT and RTP Study Design: Retrospective chart review. Methods: In order to identify patients that were diagnosed with SRC, the records of patients reporting to a Sports Medicine practice were reviewed from a period of 18 months. All patients were assessed with either the ImPACT® or C3 Logix NCAT®. The date of the injury (DOI) as well as the patient’s symptom level (IVAL), time to initiation of the return to play protocol (IRTP), and time to the return to play (RTP) were recorded. Results: Two hundred and twenty-two records (222) were identified. There was no difference in the symptom score (P = 0.22) at the IEVAL between C3 Logix® (31.5±27.0) and ImPACT® (23.2±21.9), in the IRTP (P = 0.22) between the C3 Logix® (6.2±4.3 days) and ImPACT® (5.1±4.3 days) or RTP (P = 0.46) between C3 Logix (12.1±4.9 days) and ImPACT (15.6±19.8 days). Weak to moderate correlations were found between symptom scores, IRTP, and RTP. Conclusions: Clinicians made similar recommendations, independent of the NCAT used, as when to initiate the return to play protocol and when the patient could ultimately return to play. Clinical Relevance: The particular NCAT utilized by clinician was not a primary factor in the clinical judgement towards the management of the patient with SRC

Research to Practice: Barriers to Transition Planning for Parents of Adolescents with Special Health Care Needs

An examination of the transition planning experiences and concerns of family members of young adults with special health care needs

The magnitude and characteristics of the population of cancer survivors: Using populationbased estimates of cancer prevalence to inform service planning for survivorship care

© 2014 Sharp et al. Background: Rising cancer incidence and survival mean that the number of cancer survivors is growing. Accumulating evidence suggests many survivors have long-term medical and supportive care needs, and that these needs vary by survivors' socio-demographic and clinical characteristics. To illustrate how cancer registry data may be useful in survivorship care service planning, we generated population-based estimates of cancer prevalence in Ireland and described socio-demographic and clinical characteristics of the survivor population. Methods: Details of people diagnosed with invasive cancer (ICD10 C00-C96) during 1994-2011, and who were still alive on 31/12/2011, were abstracted from the National Cancer Registry, and tabulated by cancer site, sex, current age, marital status, initial treatment, and time since diagnosis. Associations were investigated using chi-square tests. Results: After excluding non-melanoma skin cancers, 17-year cancer prevalence in Ireland was 112,610 (females: 58,054 (52%) males: 54,556 (48%)). The four most prevalent cancers among females were breast (26,066), colorectum (6,598), melanoma (4,593) and uterus (3,505) and among males were prostate (23,966), colorectum (8,207), lymphoma (3,236) and melanoma (2,774). At the end of 2011, 39% of female survivors were aged <60 and 35% were ≥70 compared to 25% and 46% of males (p < 0.001). More than half of survivors of bladder, colorectal and prostate cancer were ≥70. Cancers with the highest percentages of younger (<40) survivors were: testis (50%); leukaemia (females: 28%; males: 22%); cervix (20%); and lymphoma (females: 19%; males: 20%). Fewer female (57%) than male (64%) survivors were married but the percentage single was similar (17-18%). More female (25%) than male survivors (18%; p < 0.001) were ≥10 years from diagnosis. Overall, 69% of survivors had undergone cancer-directed surgery, and 39%, 32% and 18% had received radiotherapy, chemotherapy and hormone therapy, respectively. These frequencies were higher among females than males (surgery: 82%, 54%; radiotherapy: 42%, 35%; chemotherapy: 40%, 22%; hormone therapy: 23%, 13%). Conclusions: These results reveal the socio-demographic and clinical heterogeneity of the survivor population, and highlight groups which may have specific medical and supportive care needs. These types of population-based estimates may help decision-makers, planners and service providers to develop follow-up and after-care services to effectively meet survivors' needs

Development of a 10g femto-satellite with active attitude control

This paper describes the initial design of a femto-satellite with active attitude control. It has a structure with a matchbox form factor, measures 3.5 x 3.5 x 0.5cm, and uses three miniaturized orthogonal magnetorquers as actuators for attitude control. It also features short range RF communication at 868 MHz for demonstrating satellite networking and swarming around a CubeSat as a host. Preliminary test results obtained from a prototype device weighing 10g are given, including IMU based attitude determination, miniaturized magnetorquers, a custom-built Helmholtz coil system, active attitude control and RF communications