435 research outputs found

    Experimental reduction of simulated lunar glass by carbon and hydrogen and implications for lunar base oxygen production

    Get PDF
    The most abundant element in lunar rocks and soils is oxygen which makes up approximately 45 percent by weight of the typical lunar samples returned during the Apollo missions. This oxygen is not present as a gas but is tightly bound to other elements in mineral or glass. When people return to the Moon to explore and live, the extraction of this oxygen at a lunar outpost may be a major goal during the early years of operation. Among the most studied processes for oxygen extraction is the reduction of ilmenite by hydrogen gas to form metallic iron, titanium oxide, and oxygen. A related process is proposed which overcomes some of the disadvantages of ilmenite reduction. It is proposed that oxygen can be extracted by direct reduction of native lunar pyroclactic glass using either carbon, carbon monoxide, or hydrogen. In order to evaluate the feasibility of this proposed process a series of experiments on synthetic lunar glass are presented. The results and a discussion of the experiments are presented

    Who walks through the revolving door? Examining the lobbying activity of former members of Congress

    Get PDF
    This is a post-peer-review, pre-copyedit version of an article published in Interest Groups and Advocacy on 14 January 2016. The definitive publisher-authenticated version is available online at: http://www.palgrave-journals.com/iga/journal/vaop/ncurrent/full/iga201516a.html (DOI: 10.1057/iga.2015.16)Government watchdog groups and the government itself have shown concern about the ‘revolving door’ of employees moving from Congress to private lobbying organizations. As of yet, the academic literature analyzing who becomes a revolving door lobbyist is small but growing. We contribute to this literature by examining which former members of Congress become lobbyists. We construct a data set of all members of Congress who left the institution between 1976 and 2012, identifying those who go on to register as lobbyists. We observe several trends. Among these: there is not a significant difference in the rates at which former House members and senators become lobbyists; institutional standing (in the form of party leadership and other such positions) has a profound effect on which former House members become lobbyists, but less so among former senators; and there is some evidence that Republican former senators are more likely to become lobbyists than Democratic former senators, but this party difference is virtually absent among former House members

    Correction to: Opaque: an empirical evaluation of lobbying transparency in the UK

    Get PDF
    After the article was submitted for review, we continued improving the data. We performed a second attempt to merge groups in the lobby register with groups mentioned in ministerial meetings reports.</jats:p

    Opaque: an empirical evaluation of lobbying transparency in the UK

    Get PDF
    AbstractThe government of the UK is reputed to be among the world’s most transparent governments. Yet in comparison with many other countries, its 5-year-old register of lobbyists provides little information about the lobbying activity directed at the British state. Further, its published lists of meetings with government ministers are vague, delayed, and scattered across numerous online locations. Our analysis of more than 72,000 reported ministerial meetings and nearly 1000 lobbying clients and consultants reveals major discrepancies between these two sources of information about lobbying in the UK. Over the same four quarters, we find that only about 29% of clients listed in the lobby register appear in the published record of ministerial meetings with outside groups, and less than 4% of groups disclosed in ministerial meetings records appear in the lobby register. This wide variation between the two sets of data, along with other evidence, contribute to our conclusion that the Government could have made, and still should make, the lobby register more robust.</jats:p

    Interventions to Promote More Effective Balance-Recovery Reactions in Industrial Settings: New Perspectives on Footwear and Handrails

    Get PDF
    “Change-in-support” balance-recovery reactions that involve rapid stepping or reaching movements play a critical role in preventing falls. Recent geriatrics studies have led to new interventions to improve ability to execute these reactions effectively. Some of these interventions have the potential to reduce fall risk for younger persons working in industrial settings. In this paper, we review research pertaining to two such interventions: 1) balance-enhancing footwear insoles designed to improve stepping reactions, and 2) proximity-triggered handrail cueing systems designed to improve reach-to-grasp reactions. The insole has a raised ridge around the perimeter that is intended to improve balance control by providing increased stimulation of sensory receptors on the footsole in situations where loss of balance may be imminent. The cueing system uses flashing lights and/or verbal prompts to attract attention to the handrail and ensure that the brain registers its location, thereby facilitating more rapid and accurate grasping of the rail if and when sudden loss of balance occurs. Results to date support the efficacy of both interventions in geriatric populations. There is also some evidence that these interventions may improve balance control in younger persons; however, further research is needed to confirm their efficacy in preventing falls in industrial settings

    Self-Reported Musculoskeletal Pain in Latino Vineyard Workers

    Full text link
    The agricultural economy in the United States is dependent on millions of Latino migratory workers. Despite the health risks associated with this line of work, many agricultural workers lack health insurance or access to health care services. The purpose of this study was to collect demographic data and investigate the musculoskeletal health of Latino migratory vineyard workers. A physical therapy team collected demographic data at health clinics held at vineyards in Oregon. Nearly half (48.4%) of all vineyard workers reported experiencing musculoskeletal symptoms (MSS) in at least one region of the body. The primary region of reported MSS was the back (32% of all men and 43.7% of all women). In most cases, those who reported MSS were significantly older than those who did not report MSS. Future research is necessary to identify personal and work related injury risk factors in order to develop prevention programs

    Scottish COVID-19 Inquiry Research: Update of Health and Social Care research covering the period February 2022 to 31 December 2022

    Get PDF
    Report commissioned by Scottish COVID-19 Public Inquiry to update previous research into strategic response of Scottish Government to COVID pandemic in relation to health and social care, particularly care and nursing homes, the provision of health and social care support and the delivery of end-of-life care and use of DNACP

    Association between Physical Activity and Sport Participation on Hemoglobin A1c among Children and Adolescents with Type 1 Diabetes

    Get PDF
    Purpose: To determine associations between physical activity (PA) and sport participation on HbA1c levels in children with type 1 diabetes (T1D). Method: Pediatric patients with T1D were invited to complete a PA and sport participation survey. Data were linked to their medical records for demographic characteristics, diabetes treatment and monitoring plans, and HbA1c levels. Results: Participants consisted of 71 females and 81 males, were 13 +- 3 years old with an average HbA1c level of 8.75 +- 1.81. Children accumulating 60 min of activity 3 days or more a week had significantly lower HbA1c compared to those who accumulated less than 3 days (p \u3c 0.01) of 60 min of activity. However, there was no significant difference in HbA1c values based on sport participation groups. A multiple linear regression model indicated that PA, race, age, duration of diagnosis, and CGM use all significantly predicted HbA1c (p \u3c 0.05). Conclusion: This study demonstrated the significant relationship between daily PA and HbA1c. Those in this sample presented with lower HbA1c values even if accumulating less than the recommended number of days of activity. Further, it was shown that sport participation alone may not be adequate enough to impact HbA1c in a similar manner

    Understanding the lives of separating and separated families in the UK: what evidence do we need?

    Get PDF
    This study was designed to address three broad questions: What are the evidence – and data – needs around family separation in the UK? How far are these needs met by administrative, survey and other research data that currently exist or are in the process of being developed? What additional data are required, and how would these best be collected

    Retinal microvascular network attenuation in Alzheimer's disease

    Get PDF
    AbstractIntroductionCerebral small-vessel disease has been implicated in the development of Alzheimer's disease (AD). The retinal microvasculature enables the noninvasive visualization and evaluation of the systemic microcirculation. We evaluated retinal microvascular parameters in a case-control study of AD patients and cognitively normal controls.MethodsRetinal images were computationally analyzed and quantitative retinal parameters (caliber, fractal dimension, tortuosity, and bifurcation) measured. Regression models were used to compute odds ratios (OR) and confidence intervals (CI) for AD with adjustment for confounders.ResultsRetinal images were available in 213 AD participants and 294 cognitively normal controls. Persons with lower venular fractal dimension (OR per standard deviation [SD] increase, 0.77 [CI: 0.62–0.97]) and lower arteriolar tortuosity (OR per SD increase, 0.78 [CI: 0.63–0.97]) were more likely to have AD after appropriate adjustment.DiscussionPatients with AD have a sparser retinal microvascular network and retinal microvascular variation may represent similar pathophysiological events within the cerebral microvasculature of patients with AD
    corecore