Disentangling the exchange coupling of entangled donors in the Si quantum computer architecture

We develop a theory for micro-Raman scattering by single and coupled two-donor states in silicon. We find the Raman spectra to have significant dependence on the donor exchange splitting and the relative spatial positions of the two donor sites. In particular, we establish a strong correlation between the temperature dependence of the Raman peak intensity and the interdonor exchange coupling. Micro-Raman scattering can therefore potentially become a powerful tool to measure interqubit coupling in the development of a Si quantum computer architecture.Comment: Title changed. Other minor change

Acute Muscular Sarcocystosis: An International Investigation Among Ill Travelers Returning From Tioman Island, Malaysia, 2011-2012

A large outbreak of acute muscular sarcocystosis (AMS) among international tourists who visited Tioman Island, Malaysia, is described. Clinicians evaluating travelers returning ill from Malaysia with myalgia, with or without fever, should consider AMS in their differential diagnosi

Brain connectivity and cognitive processing speed in multiple sclerosis: A systematic review

Background: Processing speed (PS) decline is the most commonly observed cognitive deficit in people with multiple sclerosis (MS) resulting in a significant impact on quality of life. Despite its importance, knowledge of the underlying neural substrates is lacking. Objective: As MS is increasingly recognised as a disconnection syndrome, our aim was to carry out a systematic literature review to clarify the relationship between PS performance and MRI measures of structural and functional brain connectivity in people with MS. Search methods: A literature search was carried out on PubMed and Web of Science that included publications predating September 2017. Additional articles were added after inspection of the reference lists of all selected papers. Data extraction: All selected papers were categorised in three sections according to the MRI measures investigated, independently or both. Quality assessment was carried out using a customised set of criteria. Results: Thirty-two articles met the inclusion criteria and were included in the review. Microstructural integrity of the anterior corpus callosum and functional connectivity of frontal areas were more consistently found to correlate with PS performance, though high variability of findings was observed across studies. Several methodological flaws emerged from the reviewed literature. Conclusions: Despite the observed trends, no definite conclusions can be drawn on the relationship between brain connectivity and PS decline in MS given the limitations of the current literature. Future investigations may benefit from theoretical and methodological advances to clarify how MS-related brain damage affects patients’ cognition

Effects of Voice Pitch on Social Perceptions Vary With Relational Mobility and Homicide Rate

Fundamental frequency ( fo) is the most perceptually salient vocal acoustic parameter, yet little is known about how its perceptual influence varies across societies. We examined how fo affects key social perceptions and how socioecological variables modulate these effects in 2,647 adult listeners sampled from 44 locations across 22 nations. Low male fo increased men’s perceptions of formidability and prestige, especially in societies with higher homicide rates and greater relational mobility in which male intrasexual competition may be more intense and rapid identification of high-status competitors may be exigent. High female fo increased women’s perceptions of flirtatiousness where relational mobility was lower and threats to mating relationships may be greater. These results indicate that the influence of fo on social perceptions depends on socioecological variables, including those related to competition for status and mates

Rupture and Rhythm: A Phenomenology of National Experiences

This article investigates how people make sense of ruptures in the flow of everyday life as they enter new experiential domains. Shifts in being-in-time create breaks in the natural attitude that offer the opportunity to register national—or, for example, religious, gender, or class—experiences. People interpret ruptures in perception and proprioception by drawing connections with domains in which similar or contrasting kinds of disruption are evident. Normalizing the transition, rhythm—as both cadence and overall flow—helps people adjust to new circumstances, align action, and smooth subsequent ruptures. Based on extensive qualitative fieldwork, I examine the specific case of how novice and experienced tea ceremony practitioners in Japan move into, interpret, and normalize action within tea spaces

Reclaim the mural

Why has the production of public murals in London declined in recent decades? Can mural making be reclaimed as a critical art form? What is the relationship between public surface and public space? This new publication focuses on ten key murals in London – ranging from the well-known and visible such as The Battle of Cable Street in East London to the forgotten and hidden – to examine how these public paintings have changed over time and how the spaces around them have transformed. The murals are presented through newly-commissioned photographs, each accompanied by a text which draws on and reflect on the broader questions of the project. How does making a mural in a local community alter artistic decision making? Why confront the difficulties of making an image collectively? How have changes in the distribution of art funding in recent decades affected mural production? Reclaim the Mural marks the end of two year’s research by the art collective The Work In Progress (Benedict Drew, Emma Hart, Dai Jenkins, Dean Kenning and Corinna Till), who were commissioned as part of the Whitechapel Gallery’s programme of new art beyond the gallery. This publication brings together their findings in order to disseminate and share their ideas, and provoke further questions. With an introduction by the curators of the project and an essay by writer Owen Hatherley, Reclaim the Mural offers a unique insight into a long-term, artist-led project. It is the only publication which looks critically at the legacy of the mural and community arts movement of the late seventies and provides an important analogy with contemporary questions surrounding the social function of art

A simple strategy improves prehospital electrocardiogram utilization and hospital treatment for patients with acute coronary syndrome (from the ST SMART Study).

Although the American Heart Association recommends a prehospital electrocardiogram (ECG) be recorded for all patients who access the emergency medical system with symptoms of acute coronary syndrome (ACS), widespread use of prehospital ECG has not been achieved in the United States. A 5-year prospective randomized clinical trial was conducted in a predominately rural county in northern California to test a simple strategy for acquiring and transmitting prehospital ECGs that involved minimal paramedic training and decision making. A 12-lead ECG was synthesized from 5 electrodes and continuous ST-segment monitoring was performed with ST-event ECGs automatically transmitted to the destination hospital emergency department. Patients randomized to the experimental group had their ECGs printed out in the emergency department with an audible voice alarm, whereas control patients had an ECG after hospital arrival, as was the standard of care in the county. The result was that nearly 3/4 (74%) of 4,219 patients with symptoms of ACS over the 4-year study enrollment period had a prehospital ECG. Mean time from 911 call to first ECG was 20 minutes in those with a prehospital ECG versus 79 minutes in those without a prehospital ECG (p <0.0001). Mean paramedic scene time in patients with a prehospital ECG was just 2 minutes longer than in those without a prehospital ECG (95% confidence interval 1.2 to 3.6, p <0.001). Patients with non-ST-elevation myocardial infarction or unstable angina pectoris had a faster time to first intravenous drug and there was a suggested trend for a faster door-to-balloon time and lower risk of mortality in patients with ST-elevation myocardial infarction. In conclusion, increased paramedic use of prehospital ECGs and decreased hospital treatment times for ACS are feasible with a simple approach tailored to characteristics of a local geographic region