1,106 research outputs found

    Major Questions About Presidentialism: Untangling the ā€œChain of Dependenceā€ Across Administrative Law

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    A contradiction about the role of the president has emerged between the Roberts Courtā€™s Article II jurisprudence and its Major Questions Doctrine jurisprudence. In its appointment and removal decisions, the Roberts Court claims that the president is the ā€œmost democratic and politically accountable official in Governmentā€ because the president is ā€œdirectly accountable to the people through regular elections,ā€ an audacious new interpretation of Article II; and it argues that tight presidential control of agency officials lends democratic legitimacy to the administrative state. We identify these twin arguments about the ā€œdirectly accountable presidentā€ and the ā€œchain of dependenceā€ as the foundation of ā€œRoberts Court presidentialism.ā€ Meanwhile, each of the policies in dispute in the Major Questions cases over the past three decades are the product of the ā€œdirectly accountable presidentā€ and the ā€œchain of dependenceā€ in action. This Article documents seven MQD cases, from 1990s tobacco regulation to the recent student debt waiver: presidents campaigning on the policy, directing agencies to adopt the policy, and then publicly taking credit and responsibility for the policy. Nevertheless, the Supreme Court has almost always ignored the presidentsā€™ role in Major Questions policies and has instead blamed the agency for overstepping its delegated power. The erasure of presidents serves the Courtā€™s narrative of blaming ā€œunaccountable bureaucrats,ā€ rather than either granting the policy more democratic legitimacy for its presidential backing or holding the president who ordered the policy accountable for overstepping the separation of powers. The erasure also suggests the Court has an underlying ambivalence or anxiety about the problems of presidential power, which Roberts Court presidentialism has exacerbated. Ironies abound: relying on a theory of presidential accountability, but then retreating from holding presidents accountable; unaccountable judges expanding judicial power based on a narrative of ā€œunaccountable bureaucrats.ā€ The rule of law requires consistent reasoning. We suggest five doctrinal opportunities to resolve the contradictions between the Roberts Courtā€™s Article II presidentialism and its Major Questionsā€™ erasures of presidents: 1) SEC v. Jarkesy on the removal of administrative law judges; 2) future MQD cases crediting or blaming presidents; 3) the applicability of MQD to presidents; 4) the future of Chevron deference; and 5) in applying the non-delegation doctrine. The Roberts Court can untangle the ā€œchain of dependenceā€ with more consistency in either direction, but perhaps the most important lessons from these contradictions are for judicial restraint and of acknowledging the costs of direct presidential power, not just the benefits

    Evaluating Calculated Free Testosterone as a Predictor of Morbidity and Mortality Independent of Testosterone for Cross-sectional and 5-Year Longitudinal Health Outcomes in Older Men: The Concord Health and Ageing in Men Project

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    To determine whether calculated free testosterone (cFT) provides prognostic information independent of serum T for predicting morbidity and mortality in older men in cross-sectional and 5-year longitudinal analyses. We studied men aged ā‰„70 years at baseline (n = 1,705), 2-year and 5-year measuring serum T (liquid chromatography-mass spectrometry), SHBG (immunoassay), cFT (an assumption-free empirical formula) together with 24 morbidity and 4 mortality outcomes. For cross-sectional and longitudinal analyses we employed a joint prediction model using generalized estimating equation models adjusted for age, smoking, comorbidities, and body mass index (BMI) with men having both normal T and normal cFT as referent group. Most morbidity and mortality outcomes were predicted by a combination of low T and cFT (LL). By contrast, only a single morbidity outcome in cross-sectional and none in longitudinal analysis was predicted by low T/normal cFT (LN) or normal T/low cFT (NL) without significant LL associations (isolated discordance). While for the few outcomes that predicted morbidity in men with discordances (LN or NL), these predictions only occurred when LL was also significant. Hence, for morbidity or mortality prediction in older men, discordance between cFT and T is unusual and isolated discordance is rare, so that cFT provides minimal independent prognostic information over serum T.NHMRC, Sydney Medical School Foundation, and Ageing and Alzheimerā€™s Institute

    Does combined osteopenia/osteoporosis and sarcopenia confer greater risk of falls and fracture than either condition alone in older men? The Concord Health and Ageing in Men Project

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    Background It is unclear whether older men with osteopenia/osteoporosis and sarcopenia (so-called osteosarcopenia) are at greater risk of falls and fractures than those with either condition alone. Methods One thousand five hundred seventy-five community-dwelling men aged ā‰„70 years had appendicular lean mass, total hip and lumbar spine bone mineral density determined by dual-energy x-ray absorptiometry, and completed hand grip strength and gait speed tests. Osteopenia/osteoporosis was defined as a T-score at any site ā‰¤āˆ’1.0 SD. Sarcopenia was defined using the European Working Group on Sarcopenia algorithm. Participants were contacted every 4 months for 6 Ā± 2 years to ascertain incident fractures (confirmed by radiographic reports) and for 2 years for incident falls. Results Prevalence of osteosarcopenia was 8%, while 34% of participants had osteopenia/osteoporosis alone and 7% had sarcopenia alone. Men with osteosarcopenia had significantly increased fall (incidence rate ratio: 1.41; 95% confidence interval [CI]: 1.02 to 1.95) and fracture risk (hazard ratio: 1.87; 95% CI: 1.07 to 3.26) compared with men with neither osteopenia/osteoporosis nor sarcopenia. There was no statistical interaction between osteopenia/osteoporosis and sarcopenia, and falls and fracture risk were not different for osteosarcopenia compared with either condition alone (all p > .05). Conclusions Community-dwelling older men with combined osteopenia/osteoporosis and sarcopenia do not have increased falls and fracture risk compared with those with either condition. Further research is required to clarify whether the term ā€œosteosarcopeniaā€ has any meaning above and beyond either term alone and therefore potential clinical utility for falls and fracture prediction.NHMRC (project grant number 301916) and the Ageing and Alzheimerā€™s Institute. D.Scott is supported by a NHRMC Career Development Fellowship (GNT1123014

    Adolescent testosterone influences BDNF and TrkB mRNA and neurotrophinā€“interneuron marker relationships in mammalian frontal cortex

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    AbstractLate adolescence in males is a period of increased susceptibility for the onset of schizophrenia, coinciding with increased circulating testosterone. The cognitive deficits prevalent in schizophrenia may be related to unhealthy cortical interneurons, which are trophically dependent on brain derived neurotrophic factor. We investigated, under conditions of depleted (monkey and rat) and replaced (rat) testosterone over adolescence, changes in gene expression of cortical BDNF and TrkB transcripts and interneuron markers and the relationships between these mRNAs and circulating testosterone. Testosterone removal by gonadectomy reduced gene expression of some BDNF transcripts in monkey and rat frontal cortices and the BDNF mRNA reduction was prevented by testosterone replacement. In rat, testosterone replacement increased the potential for classical TrkB signalling by increasing the full length to truncated TrkB mRNA ratio, whereas in the monkey cortex, circulating testosterone was negatively correlated with the TrkB full length/truncated mRNA ratio. We did not identify changes in interneuron gene expression in monkey frontal cortex in response to gonadectomy, and in rat, we showed that only somatostatin mRNA was decreased by gonadectomy but not restored by testosterone replacement. We identified complex and possibly species-specific, relationships between BDNF/TrkB gene expression and interneuron marker gene expression that appear to be dependent on the presence of testosterone at adolescence in rat and monkey frontal cortices. Taken together, our findings suggest there are dynamic relationships between BDNF/TrkB and interneuron markers that are dependent on the presence of testosterone but that this may not be a straightforward increase in testosterone leading to changes in BDNF/TrkB that contributes to interneuron health

    Reducing STEM gender bias with VIDS (video interventions for diversity in STEM)

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    Gender biases contribute to the underrepresentation of women in STEM. In response, the scientific community has called for methods to reduce bias, but few validated interventions exist. Thus, an interdisciplinary group of researchers and filmmakers partnered to create VIDS (Video Interventions for Diversity in STEM), which are short videos that expose participants to empirical findings from published gender bias research in 1 of 3 conditions. One condition illustrated findings using narratives (compelling stories), and the second condition presented the same results using expert interviews (straightforward facts). A hybrid condition included both narrative and expert interview videos. Results of two experiments revealed that relative to controls, VIDS successfully reduced gender bias and increased awareness of gender bias, positive attitudes toward women in STEM, anger, empathy, and intentions to engage in behaviors that promote gender parity in STEM. The narratives were particularly impactful for emotions, while the expert interviews most strongly impacted awareness and attitudes. The hybrid condition reflected the strengths of both the narratives and expert interviews (though effects were sometimes slightly weaker than the other conditions). VIDS produced substantial immediate effects among both men and women in the general population and STEM faculty, and effects largely persisted at follow-up. (PsycINFO Database Record (c) 2018 APA, all rights reserved

    Community-dwelling men with dementia are at high risk of hip but not any other fracture: The Concord Health and Ageing in Men Project

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    Aim The aim of the present longitudinal study of communityā€dwelling older men was to examine the association between cognitive status at baseline, and falls, fractures and bone loss over time. Methods In the Concord Health and Aging in Men Project, 1705 communityā€dwelling men aged 70ā€“97ā€‰years had detailed baseline clinical assessment of cognitive status (dementia, mild cognitive impairment [MCI] and normal cognition), as well as depression, physical activity, neuromuscular function, health status, sociodemographics, comorbidities, medication use and serum 25 hydroxyvitaminā€‰D, 1,25 dihydroxyvitamin D and parathyroid hormone levels. During a mean followā€up period of 6ā€‰years, participants were contacted 4ā€monthly to ascertain incident falls and fractures, the latter being confirmed by radiographic reports. Bone mineral density was measured by dual Xā€ray absorptiometry at multiple timeā€points. Results At baseline, 120 men were assessed to have MCI and 93 men to have dementia. Over time, there were 162 first incident fractures, including 43 hip and 32 vertebral fractures. In univariate models, baseline dementia, but not MCI, predicted an increased incidence of hip fracture (HR 6.95, 95% CI 3.47ā€“13.96), but not vertebral (HR 2.26, 95% CI 0.79ā€“6.46) or nonā€hip nonā€vertebral fracture (HR 0.73, 95% CI 0.27ā€“1.99). The strong risk of hip fractures associated with dementia remained after accounting for potential confounders (HR 4.44, 95% CI 1.97ā€“9.98). In multivariate analyses, dementia (incidence rate ratio 2.26, 95% CI 1.70ā€“2.99), but not MCI, was associated with an increased risk of falls compared with normal cognition. There was no association between baseline dementia and change in bone mineral density. Conclusions Older men with dementia, but not MCI, have a greater tendency to fall and sustain hip fractures, but not any other types of fractures.NHMRC, Ageing and Alzheimer's Institute, Sydney Medical School Foundatio

    Association between pain and the frailty phenotype in older men: longitudinal results from the Concord Health and Ageing in Men Project (CHAMP)

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    Objectives to determine whether pain increases the risk of developing the frailty phenotype and whether frailty increases the risk of developing chronic or intrusive pain, using longitudinal data. Design/Setting longitudinal data from the Concord Health and Ageing in Men Project (CHAMP), a prospective population based cohort study. Participants a total of 1,705 men aged 70 years or older, living in an urban area of New South Wales, Australia. Measurements data on the presence of chronic pain (daily pain for at least 3 months), intrusive pain (pain causing moderate to severe interference with activities) and the criteria for the Cardiovascular Health Study (CHS) frailty phenotype were collected in three waves, from January 2005 to October 2013. Data on age, living arrangements, education, smoking status, alcohol consumption, body mass index, comorbidities, cognitive function, depressive symptoms and history of vertebral or hip fracture were also collected and included as covariates in the analyses. Results a total of 1,705 participants were included at baseline, of whom 1,332 provided data at the 2-year follow-up and 940 at the 5-year follow-up. Non-frail (robust and pre-frail) men who reported chronic pain were 1.60 (95% confidence interval (CI): 1.02ā€“2.51, P = 0.039) times more likely to develop frailty at follow-up, compared to those with no pain. Intrusive pain did not significantly increase the risk of future frailty. Likewise, the frailty status was not associated with future chronic or intrusive pain in the adjusted analysis. Conclusions the presence of chronic pain increases the risk of developing the frailty phenotype in community-dwelling older men.NHMRC, The Ageing and Alzheimer's Institut

    Evaluation of INSeq To Identify Genes Essential for

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    The reciprocal interaction between rhizosphere bacteria and their plant hosts results in a complex battery of genetic and physiological responses. In this study, we used insertion sequencing (INSeq) to reveal the genetic determinants responsible for the fitness of Pseudomonas aeruginosa PGPR2 during root colonization. We generated a random transposon mutant library of Pseudomonas aeruginosa PGPR2 comprising 39,500 unique insertions and identified genes required for growth in culture and on corn roots. A total of 108 genes were identified as contributing to the fitness of strain PGPR2 on roots. The importance in root colonization of four genes identified in the INSeq screen was verified by constructing deletion mutants in the genes and testing them for the ability to colonize corn roots singly or in competition with the wild type. All four mutants were affected in corn root colonization, displaying 5- to 100-fold reductions in populations in single inoculations, and all were outcompeted by the wild type by almost 100-fold after seven days on corn roots in mixed inoculations of the wild type and mutant. The genes identified in the screen had homology to genes involved in amino acid catabolism, stress adaptation, detoxification, signal transduction, and transport. INSeq technology proved a successful tool to identify fitness factors in P aeruginosa PGPR2 for root colonization
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