Deep dielectric charging of regolith within the Moon\u27s permanently shadowed regions

Abstract Energetic charged particles, such as galactic cosmic rays (GCRs) and solar energetic particles (SEPs), can penetrate deep within the lunar surface, resulting in deep dielectric charging. This charging process depends on the GCR and SEP currents, as well as on the regolith\u27s electrical conductivity and permittivity. In permanently shadowed regions (PSRs) near the lunar poles, the discharging timescales are on the order of a lunation (∼20 days). We present the first predictions for deep dielectric charging of lunar regolith. To estimate the resulting subsurface electric fields, we develop a data-driven, one-dimensional, time-dependent model. For model inputs, we use GCR data from the Cosmic Ray Telescope for the Effects of Radiation on board the Lunar Reconnaissance Orbiter and SEP data from the Electron, Proton, and Alpha Monitor on the Advanced Composition Explorer. We find that during the recent solar minimum, GCRs create persistent electric fields up to ∼700 V/m. We also find that large SEP events create transient but strong electric fields (≥106 V/m) that may induce dielectric breakdown. Such breakdown would likely result in significant modifications to the physical and chemical properties of the lunar regolith within PSRs. Key Points Energetic charged particles deep dielectrically charge the lunar regolithWe model the resulting subsurface electric fieldsThe electric fields may be great enough to induce dielectric breakdown

From Social Exclusion to Supported Inclusion: Adults with Intellectual Disability Discuss Their Lived Experiences of a Sructured Social Group

Background People with intellectual disability often have few friends and experience social exclusion. Recognising this gap, supported social groups with the aim of inclusion and interdependence were created by a supported employment provider. Methods Interviews were undertaken with 10 adults with intellectual disability exploring their lived experiences of a supported social group. Data were analysed using descriptive phenomenology. Results Two themes emerged (i) supported engagement fosters wellbeing, and (ii) developing social belonging and connectedness. Participants not only acknowledged the support that they needed to participate, but also that the social group had changed their lives in many ways. Conclusions Adults with intellectual disability want to socialise, have friends and be part of their community. For this to be achieved, they recognise the need to seek some form of support. With appropriate and targeted support, adults with intellectual disability can move from social exclusion towards supported inclusion and experience richer lives

From mainstream employment to mainstream retirement : a randomised controlled trial of a transition to retirement intervention for adults with intellectual disability

Background: We evaluated a transition to retirement intervention that adapted strategies used to support employment of people with intellectual disability in mainstream workplaces. The intervention facilitated their independent participation in mainstream community groups and volunteering. Methods: We randomised 29 older Australians who currently/previously worked in mainstream employment into an intervention group or wait-list control group. Hours of independent participation in target activities were collected before and after the 13-week initial intervention/waiting period, and at 52 weeks for intervention participants. Results: Six of the 12 intervention participants selected an activity and increased hours of independent participation following 13 weeks in the Keeping Active (KA) program and eight were independently accessing their selected activity at 52-week follow-up. None of the 19 wait-list participants increased their independent participation after 13 weeks. Conclusions: The intervention was effective and highlighted the need to account for factors such as participant choice in evaluation of individualised programs

Postmortem tissue distribution of morphine and its metabolites in a series of heroin related deaths

The abuse of heroin (diamorphine) and heroin deaths are growing around the world. The interpretation of the toxicological results from suspected heroin deaths is notoriously difficult especially in cases where there may be limited samples. In order to help forensic practitioners with heroin interpretation we determined the concentration of morphine (M), morphine‐3‐glucuronide (M3G) and morphine‐6‐glucuronide (M6G) in blood (femoral and cardiac), brain (thalamus), liver (deep right lobe), bone marrow (sternum), skeletal muscle (psoas) and vitreous humor in 44 heroin related deaths. The presence of 6‐monoacetylmorphine (6‐MAM) in any of the postmortem samples was used as confirmation of heroin use. Quantitation was carried out using a validated LC‐MS/MS method with solid phase extraction. We also determined the presence of papaverine, noscapine and codeine in the samples, substances often found in illicit heroin and that may help determine illicit heroin use. The results of this study show that vitreous is the best sample to detect 6‐MAM (100% of cases), and thus heroin use. The results of the M, M3G and M6G quantitation in this study allow a degree of interpretation when samples are limited. However in some cases it may not be possible to determine heroin/morphine use as in 4 cases in muscle (3 cases in bone marrow) no morphine, morphine‐3‐glucuronide or morphine‐6‐glucuronide was detected, even though they were detected in other case samples. As always postmortem cases of suspected morphine/heroin intoxication should be interpreted with care and with as much case knowledge as possible

Appendix B: Forms

We assume that disability services already have established client information systems, so this Appendix contains only three forms. Each is directly related to the TTR program and to retirement planning. The forms are: 1. Retirement Lifestyle Planning form (first retirement planning meeting) 2. Retirement Lifestyle Planning form (for annual review meeting) 3. Right of return lette

The financial costs of registered nurse-led relationship-centred care : a single-case Australian feasibility study

People with intellectual disability are accommodated and cared for in a variety of settings in Australia. Direct care is delivered by a mixture of qualified health professionals (nurses) and unlicenced disability support workers in varying combinations depending on the complexity and chronicity of comorbidities experienced by people with intellectual disability. Although some of these disability services continue to employ registered nurses, the size and specialised education of this workforce is decreasing due to a myriad of policy changes, which has the effect of compromising continuity of care and adverse effects on health outcomes. The objective of this study was to compare the differences on the financial cost of a single case using different models of care with, and without, specialised registered nursing input. The single case had profound intellectual disability and multiple chronic and complex health problems and was cared for by a model that included 24 h registered nurse care and support. Four financial scenarios are presented, and the differences both in terms of actual cost, and potential health outcomes are discussed. This study has set the scene for a large study where health economic data can be compared against multiple cases, across a range of care contexts, in order to advance evidence about which models provide the better health outcomes for people with intellectual disability and associated multiple chronic and complex health problems

Radiation modeling in the Earth and Mars atmospheres using LRO/CRaTER with the EMMREM Module

Abstract We expand upon the efforts of Joyce et al. (2013), who computed the modulation potential at the Moon using measurements from the Cosmic Ray Telescope for the Effects of Radiation (CRaTER) instrument on the Lunar Reconnaissance Orbiter (LRO) spacecraft along with data products from the Earth-Moon-Mars Radiation Environment Module (EMMREM). Using the computed modulation potential, we calculate galactic cosmic ray (GCR) dose and dose equivalent rates in the Earth and Mars atmospheres for various altitudes over the course of the LRO mission. While we cannot validate these predictions by directly comparable measurement, we find that our results conform to expectations and are in good agreement with the nearest available measurements and therefore may be used as reasonable estimates for use in efforts in risk assessment in the planning of future space missions as well as in the study of GCRs. PREDICCS (Predictions of radiation from REleASE, EMMREM, and Data Incorporating the CRaTER, COSTEP, and other solar energetic particles measurements) is an online system designed to provide the scientific community with a comprehensive resource on the radiation environments of the inner heliosphere. The data products shown here will be incorporated into PREDICCS in order to further this effort and daily updates will be made available on the PREDICCS website (http://prediccs.sr.unh.edu). Key Points We model GCR dose and dose equivalent rates in Earth and Mars atmospheres Dose rates are in reasonable agreement with nearby measurements Data products will soon be made available on PREDICCS website

The first cosmic ray albedo proton map of the Moon

[1] Neutrons emitted from the Moon are produced by the impact of galactic cosmic rays (GCRs) within the regolith. GCRs are high-energy particles capable of smashing atomic nuclei in the lunar regolith and producing a shower of energetic protons, neutrons and other subatomic particles. Secondary particles that are ejected out of the regolith become “albedo” particles. The neutron albedo has been used to study the hydrogen content of the lunar regolith, which motivates our study of albedo protons. In principle, the albedo protons should vary as a function of the input GCR source and possibly as a result of surface composition and properties. During the LRO mission, the total detection rate of albedo protons between 60 MeV and 150 MeV has been declining since 2009 in parallel with the decline in the galactic cosmic ray flux, which validates the concept of an albedo proton source. On the other hand, the average yield of albedo protons has been increasing as the galactic cosmic ray spectrum has been hardening, consistent with a disproportionately stronger modulation of lower energy GCRs as solar activity increases. We construct the first map of the normalized albedo proton emission rate from the lunar surface to look for any albedo variation that correlates with surface features. The map is consistent with a spatially uniform albedo proton yield to within statistical uncertainties

Measurements of galactic cosmic ray shielding with the CRaTER instrument

[1] The Cosmic Ray Telescope for the Effects of Radiation (CRaTER) instrument aboard the Lunar Reconnaissance Orbiter has been measuring energetic charged particles from the galactic cosmic rays (GCRs) and solar particle events in lunar orbit since 2009. CRaTER includes three pairs of silicon detectors, separated by pieces of tissue-equivalent plastic that shield two of the three pairs from particles incident at the zenith-facing end of the telescope. Heavy-ion beams studied in previous ground-based work have been shown to be reasonable proxies for the GCRs when their energies are sufficiently high. That work, which included GCR simulations, led to predictions for the amount of dose reduction that would be observed by CRaTER. Those predictions are compared to flight data obtained by CRaTER in 2010–2011

Nonresident fathers' voice : marginalized disempowered and silenced

Nonresident fathers, following separation/divorce, are more likely to experience multiple forms of family types simultaneously than any other sociodemographic group. Although there is considerable writing on the factors and issues surrounding nonresident fathers from academics, the Family court, the Child Support Agency, and women’s and welfare groups, the voice of nonresident fathers themselves is rarely heard. This is due to nonresident fathers being marginalized, disempowered, and silenced by these same entities. The voice of nonresident fathers is routinely minimized, dismissed, and labeled as anti-feminist or a backlash to feminism. This opinion piece argues that there is a need for qualitative research to be undertaken to investigate, document, and explore nonresident fathers’ voices from their own perspective to hear what they have to say of themselves so that a better understanding of the dynamics that impact and influence them can be achieved. This would mean that actions can be identified and undertaken to better understand nonresident fathers’ situation while providing insights for the development of social policies by Government and Welfare agencies together with support care for nonresident fathers highlighting their desires and needs