Parsec-scale magnetic fields in Arp 220

We present the first very-long-baseline interferometry (VLBI) detections of Zeeman splitting in another galaxy. We used Arecibo Observatory, the Green Bank Telescope, and the Very Long Baseline Array to perform dual-polarization observations of OH maser lines in the merging galaxy Arp 220. We measured magnetic fields of $\sim$1-5 mG associated with three roughly parsec-sized clouds in the nuclear regions of Arp 220. Our measured magnetic fields have comparable strengths and the same direction as features at the same velocity identified in previous Zeeman observations with Arecibo alone. The agreement between single dish and VLBI results provides critical validation of previous Zeeman splitting observations of OH megamasers that used a single large dish. The measured magnetic field strengths indicate that magnetic energy densities are comparable to gravitational energy in OH maser clouds. We also compare our total intensity results to previously published VLBI observations of OH megamasers in Arp 220. We find evidence for changes in both structure and amplitude of the OH maser lines that are most easily explained by variability intrinsic to the masing region, rather than variability produced by interstellar scintillation. Our results demonstrate the potential for using high-sensitivity VLBI to study magnetic fields on small spatial scales in extragalactic systems.Comment: 9 pages, accepted to MNRA

Cross Sectional Associations between Socio-Demographic Factors and Cognitive Performance in an Older British Population: The European Investigation of Cancer in Norfolk (EPIC-Norfolk) Study

$\textbf{BACKGROUND}$: Cognition covers a range of abilities, such as memory, response time and language, with tests assessing either specific or generic aspects. However differences between measures may be observed within the same individuals. $\textbf{OBJECTIVE}$: To investigate the cross-sectional association of cognitive performance and socio-demographic factors using different assessment tools across a range of abilities in a British cohort study. $\textbf{METHODS}$: Participants of the European Prospective Investigation of Cancer (EPIC) in Norfolk Study, aged 48-92 years, underwent a cognitive assessment between 2006 and 2011 (piloted between 2004 and 2006) and were investigated over a different domains using a range of cognitive tests. $\textbf{RESULTS}$: Cognitive measures were available on 8584 men and women. Though age, sex, education and social class were all independently associated with cognitive performance in multivariable analysis, different associations were observed for different cognitive tests. Increasing age was associated with increased risk of a poor performance score in all of the tests, except for the National Adult Reading Test (NART), an assessment of crystallized intelligence. Compared to women, men were more likely to have had poor performance for verbal episodic memory, Odds Ratio, OR = 1.99 (95% Confidence Interval, 95% CI 1.72, 2.31), attention OR = 1.62, (95% CI 1.39, 1.88) and prospective memory OR = 1.46, (95% CI 1.29, 1.64); however, no sex difference was observed for global cognition, OR = 1.07 (95%CI 0.93, 1.24). The association with education was strongest for NART, and weakest for processing speed. $\textbf{CONCLUSION}$: Age, sex, education and social class were all independently associated with performance on cognitive tests assessing a range of different domains. However, the magnitude of associations of these factors with different cognitive tests differed. The varying relationships seen across different tests may help explain discrepancies in results reported in the current literature, and provides insights into influences on cognitive performance in later life.The infrastructure for this study was supported by the Medical Research Council, UK http://www.mrc.ac.uk/ (Ref: G0401527) and Cancer Research UK http://www.cancerresearchuk.org/ (CRUK, Ref: C864/A8257). The clinic for EPIC-Norfolk 3 was funded by Research into Ageing, now known as Age UK http://www.ageuk.org.uk/ (Grant Ref: 262). The pilot phase was supported by MRC (Ref: G9502233) and CRUK (Ref: C864/A2883). KK received the above funding. FEM Is supported by MRC (Ref: U105292687)

Text is Not Enough

In Bostock v. Clayton County, the Supreme Court held that Title VII of the Civil Rights Act of 1964 protects gay and lesbian individuals from employment discrimination. The three opinions in the case also provided a feast for Court watchers who study statutory interpretation. Commentators across the ideological spectrum have described the opinions as dueling examples of textualism. The conventional wisdom is thus that Bostock shows the triumph of textualism. The conventional wisdom is wrong. Instead, Bostock shows what those who have studied statutory interpretation have known for decades: judges are multimodalists, drawing from a panoply of forms of legal argumentation. In particular, Bostock shows that judges are inevitably common-law thinkers, even when interpreting statutes

Sturge Weber Syndrome: An Unusual Case with Multisystem Manifestations

Background: Sturge-Weber syndrome (SWS) is a rare congenital neurocutaneous disorder. It is characterized by the presence of facial port wine stains, neurological abnormalities like seizures and mental retardation, ocular disorders, oral involvement and leptomeningeal angiomas.Case Report: A 13-year-old boy presented with the chief complaint of swollen, bleeding gums and deposits on the teeth. Detailed medical and dental history, clinical examination and investigations confirmed the diagnosis of Sturge-Weber syndrome. The treatment comprised of a thorough plaque control regimen to reduce the gingival enlargement, and it included oral hygiene instructions, thorough scaling, root planing at regular intervals and plaque index scoring which motivated the patient at each visit.Conclusion: This case illustrates that early intervention in a patient with Sturge-Weber syndrome is quintessential because of its associated gingival vascular features and their complicating manifestations. Furthermore, the need for periodic oral examinations and maintenance of good oral hygiene to prevent any complications from the oral vascular lesions has been highlighted.Keywords: Gingival overgrowth, Hemangioma, Plaque control regimen, Port wine stains, Sturge–Weber syndrom

The Dilemma of Interstatutory Interpretation

Courts engage in interstatutory cross-referencing all the time, relying on one statute to help interpret another. Yet, neither courts nor scholars have ever had a satisfactory theory for determining when it is appropriate. Is it okay to rely on any other statute as an interpretive aid? Or, are there limits to the practice? If so, what are they? To assess when interstatutory cross-referencing is appropriate, I focus on one common form of the technique, the in pari materia doctrine. When a court concludes that two statutes are in pari materia or (translating the Latin) “on the same subject,” the court then treats the two statutes as though they were one. The doctrine thus permits judges to use ordinary doctrines of intra-statute interpretation across the two statutes. Determining that two statutes are “on the same subject” thus gives interpreters a powerful tool of interstatutory interpretation. How, then, should courts determine whether to treat two statutes as one? If we frame the question through the lens of the two currently predominant theories of statutory interpretation — textualism and intentionalism—we can see that the traditional approach of asking about the statutes’ “subject matter” in the abstract makes little sense. For textualist judges who care about objective meaning, it makes more sense to engage in interstatutory cross-referencing if and only if the audience for the two statutes—the appropriately informed objective reader of the statutes—is the same. For interpreters who care about subjective legislative intent, interstatutory cross-referencing would generally be appropriate if and only if the two statutes were drafted by and came through the same Congressional committees. Even if one rejects my proposed approaches, thinking about how to fit interstatutory cross-referencing into modern theories of statutory interpretation raises some confounding issues for those theories. In particular, it requires textualists to articulate explicitly who the audience for any given statute is, for without doing so, the textualist has no theoretical basis for determining when interstatutory cross-referencing is appropriate and when it is not. Thus, irrespective of the specifics of my proposals, looking at the ancient doctrine of in pari materia through the lens of modern theories of statutory interpretation sheds light on important questions about statutory interpretation that courts and theorists have largely ignored