36 research outputs found
âYou Shouldnât Worry Walking a Block and a Half to Your Carâ: Perceptions of Crime and Community Norms in the Bakken Oil Play
The Bakken oil play experienced substantial population growth from oil and gas development over the last decade, resulting in disruption to social norms at the community level. We surveyed residents in a county in Montana and a county in North Dakota about their perceptions of crime resulting from the most recent boom, finding that residents perceived high levels of various types of crimes resulting from the boom and that many also changed their daily behavior out of fear of such crime. In addition, we asked about current perceptions of community norms and find evidence that perceived levels of helping and trust are lower in the boomtown context than in other similar types of rural areas. We also show how these perceptions matter for other important community-level issues; those who perceived high levels of crime were more likely to see energy development as negative and those who saw community norms as weaker and were less involved in community organizations were more likely to plan to leave. A better understanding of how residents perceive social disruption resulting from energy development and the implications of these perceptions can help leaders in rural boomtowns make better decisions related to natural resource development
The role of genes, intelligence, personality, and social engagement in cognitive performance in Klinefelter syndrome
INTRODUCTION: The determinants of cognitive deficits among individuals with Klinefelter syndrome (KS) are not well understood. This study was conducted to assess the impact of general intelligence, personality, and social engagement on cognitive performance among patients with KS and a group of controls matched for age and years of education. METHODS: Sixtyânine patients with KS and 69 controls were assessed in terms of IQ, NEO personality inventory, the Autism Spectrum Quotient (AQ) scale, and measures of cognitive performance reflecting working memory and executive function. RESULTS: Patients with KS performed more poorly on memory and executiveâfunction tasks. Patients with KS also exhibited greater neuroticism and less extraversion, openness, and conscientiousness than controls. Memory deficits among patients with KS were associated with lower intelligence, while diminished executive functioning was mediated by both lower intelligence and less social engagement. CONCLUSION: Our results suggest that among patients with KS, memory deficits are principally a function of lower general intelligence, while executiveâfunction deficits are associated with both lower intelligence and poorer social skills. This suggests a potential influence of social engagement on executive cognitive functioning (and/or viceâversa) among individuals with KS, and perhaps those with other genetic disorders. Future longitudinal research would be important to further clarify this and other issues discussed in this research
Sensing remote nuclear spins
Sensing single nuclear spins is a central challenge in magnetic resonance
based imaging techniques. Although different methods and especially diamond
defect based sensing and imaging techniques in principle have shown sufficient
sensitivity, signals from single nuclear spins are usually too weak to be
distinguished from background noise. Here, we present the detection and
identification of remote single C-13 nuclear spins embedded in nuclear spin
baths surrounding a single electron spins of a nitrogen-vacancy centre in
diamond. With dynamical decoupling control of the centre electron spin, the
weak magnetic field ~10 nT from a single nuclear spin located ~3 nm from the
centre with hyperfine coupling as weak as ~500 Hz is amplified and detected.
The quantum nature of the coupling is confirmed and precise position and the
vector components of the nuclear field are determined. Given the distance over
which nuclear magnetic fields can be detected the technique marks a firm step
towards imaging, detecting and controlling nuclear spin species external to the
diamond sensor
Preventing recurrence of thromboembolic events through coordinated treatment in the District of Columbia
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/87024/1/j.1747-4949.2011.00654.x.pd
Global 30â240 keV proton precipitation in the 17â18 April 2002 geomagnetic storms: 2. Conductances and beam spreading
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/95032/1/jgra18676.pd