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Breakthrough Listen is a 10-yr initiative to search for signatures of technologies created by extraterrestrial civilisations at radio and optical wavelengths. Here, we detail the digital data recording system deployed for Breakthrough Listen observations at the 64-m aperture CSIRO Parkes Telescope in New South Wales, Australia. The recording system currently implements two modes: a dual-polarisation, 1.125-GHz bandwidth mode for single-beam observations, and a 26-input, 308-MHz bandwidth mode for the 21-cm multibeam receiver. The system is also designed to support a 3-GHz single-beam mode for the forthcoming Parkes ultra-wideband feed. In this paper, we present details of the system architecture, provide an overview of hardware and software, and present initial performance results.
Movement disorders associated with exposure to antipsychotic drugs are common and stigmatising but underdiagnosed.
To develop and evaluate a new clinical procedure, the ScanMove instrument, for the screening of antipsychotic-associated movement disorders for use by mental health nurses.
Item selection and content validity assessment for the ScanMove instrument were conducted by a panel of neurologists, psychiatrists and a mental health nurse, who operationalised a 31-item screening procedure. Interrater reliability was measured on ratings for 30 patients with psychosis from ten mental health nurses evaluating video recordings of the procedure. Criterion and concurrent validity were tested comparing the ScanMove instrument-based rating of 13 mental health nurses for 635 community patients from mental health services with diagnostic judgement of a movement disorder neurologist based on the ScanMove instrument and a reference procedure comprising a selection of commonly used rating scales.
Interreliability analysis showed no systematic difference between raters in their prediction of any antipsychotic-associated movement disorders category. On criterion validity testing, the ScanMove instrument showed good sensitivity for parkinsonism (90%) and hyperkinesia (89%), but not for akathisia (38%), whereas specificity was low for parkinsonism and hyperkinesia, and moderate for akathisia.
The ScanMove instrument demonstrated good feasibility and interrater reliability, and acceptable sensitivity as a mental health nurse-administered screening tool for parkinsonism and hyperkinesia.
To integrate electronic clinical decision support tools into clinical practice and to evaluate the impact on indwelling urinary catheter (IUC) use and catheter-associated urinary tract infections (CAUTIs).
Design, Setting, and Participants
This 4-phase observational study included all inpatients at a multicampus, academic medical center between 2011 and 2015.
Phase 1 comprised best practices training and standardization of electronic documentation. Phase 2 comprised real-time electronic tracking of IUC duration. In phase 3, a triggered alert reminded clinicians of IUC duration. In phase 4, a new IUC order (1) introduced automated order expiration and (2) required consideration of alternatives and selection of an appropriate indication.
Overall, 2,121 CAUTIs, 179,070 new catheters, 643,055 catheter days, and 2,186 reinsertions occurred in 3·85 million hospitalized patient days during the study period. The CAUTI rate per 10,000 patient days decreased incrementally in each phase from 9·06 in phase 1 to 1·65 in phase 4 (relative risk [RR], 0·182; 95% confidence interval [CI], 0·153–0·216; P<·001). New catheters per 1,000 patient days declined from 53·4 in phase 1 to 39·5 in phase 4 (RR, 0·740; 95% CI, 0·730; P<·001), and catheter days per 1,000 patient days decreased from 194·5 in phase 1 to 140·7 in phase 4 (RR, 0·723; 95% CI, 0·719–0·728; P<·001). The reinsertion rate declined from 3·66% in phase 1 to 3·25% in phase 4 (RR, 0·894; 95% CI, 0·834–0·959; P=·0017).
The phased introduction of decision support tools was associated with progressive declines in new catheters, total catheter days, and CAUTIs. Clinical decision support tools offer a viable and scalable intervention to target hospital-wide IUC use and hold promise for other quality improvement initiatives.
More than 90% of Thai hospitals surveyed reported implementing environmental cleaning and disinfection (ECD) protocols. Hospital epidemiologist presence was associated with the existence of an ECD checklist (P=.01) and of ECD auditing (P=.001), while good and excellent hospital administrative support were associated with better adherence to ECD protocols (P<.001) and ECD checklists (P=.005).
The collective response of electrons in an ultrathin foil target irradiated by an ultraintense (
) laser pulse is investigated experimentally and via 3D particle-in-cell simulations. It is shown that if the target is sufficiently thin that the laser induces significant radiation pressure, but not thin enough to become relativistically transparent to the laser light, the resulting relativistic electron beam is elliptical, with the major axis of the ellipse directed along the laser polarization axis. When the target thickness is decreased such that it becomes relativistically transparent early in the interaction with the laser pulse, diffraction of the transmitted laser light occurs through a so called ‘relativistic plasma aperture’, inducing structure in the spatial-intensity profile of the beam of energetic electrons. It is shown that the electron beam profile can be modified by variation of the target thickness and degree of ellipticity in the laser polarization.
This study examined subjective and objective cognitive functioning in 26 female breast cancer survivors (BCS) who received chemotherapy treatment that finished .5 to 5 years prior to testing and compared their results to 25 demographically matched women with no history of cancer. Participants were assessed on prospective memory (PM) tasks; neuropsychological tests of processing speed, attentional flexibility with greater cognitive load, executive function, and verbal memory; self-report measures of cognitive dysfunction and PM failures; and distress. The BCS group showed significantly slower speed of processing and reduced attentional flexibility, and reported significantly more cognitive complaints and PM failures than the control group on five of six self-report measures. The groups did not differ on other PM or neuropsychological measures or on a measure of distress. Subjective cognition correlated with some neuropsychological tests and with a virtual reality PM task. Objective cognitive impairments were associated with reduced quality of life in the BCS group. The results provide some evidence of both self-reported impairment and objective cognitive dysfunction following chemotherapy treatment.
We introduce the concept of infinite cochain sequences and initiate a theory of homological algebra for them. We show how these sequences simplify and improve the construction of infinite coclass families (as introduced by Eick and Leedham-Green) and also how they can be applied to prove that almost all groups in such a family have equivalent Quillen categories. We also include some examples of infinite families of
-groups from different coclass families that have equivalent Quillen categories.
The Full-sky Astrometric Mapping Explorer (FAME) is designed to perform an all-sky, astrometric survey with unprecedented accuracy. It will create a rigid astrometric catalog of 4 × 107 stars with 5 < mV < 15. For bright stars, 5 < mV < 9, FAME will determine positions and parallaxes accurate to < 50 μas, with proper motion errors < 50 μas/yr. For fainter stars, 9 < mV < 15, FAME will determine positions and parallaxes accurate to < 500 μas, with proper motion errors < 500 μas/yr. It will also collect photometric data on these 4 × 107 stars in four Sloan Digital Sky Survey colors. NASA selected FAME to be one of five MIDEX missions funded for a concept study. In October 1999, NASA selected FAME for launch in 2004 as the MIDEX-4 mission in its Explorer program.
Influenza A (H1N1) pdm09 became the predominant circulating strain in the United States during the 2013–2014 influenza season. Little is known about the epidemiology of severe influenza during this season.
A retrospective cohort study of severely ill patients with influenza infection in intensive care units in 33 US hospitals from September 1, 2013, through April 1, 2014, was conducted to determine risk factors for mortality present on intensive care unit admission and to describe patient characteristics, spectrum of disease, management, and outcomes.
A total of 444 adults and 63 children were admitted to an intensive care unit in a study hospital; 93 adults (20.9%) and 4 children (6.3%) died. By logistic regression analysis, the following factors were significantly associated with mortality among adult patients: older age (>65 years, odds ratio, 3.1 [95% CI, 1.4–6.9], P=.006 and 50–64 years, 2.5 [1.3–4.9], P=.007; reference age 18–49 years), male sex (1.9 [1.1–3.3], P=.031), history of malignant tumor with chemotherapy administered within the prior 6 months (12.1 [3.9–37.0], P<.001), and a higher Sequential Organ Failure Assessment score (for each increase by 1 in score, 1.3 [1.2–1.4], P<.001).
Risk factors for death among US patients with severe influenza during the 2013–2014 season, when influenza A (H1N1) pdm09 was the predominant circulating strain type, shifted in the first postpandemic season in which it predominated toward those of a more typical epidemic influenza season.
Infect. Control Hosp. Epidemiol. 2015;36(11):1251–1260
The model diatom Thalassiosira pseudonana is believed to be a single species with a global distribution, but it has not been confirmed previously whether isolates from different environmental and geographic origins are genotypically and phenotypically identical. In the present study, a polyphasic approach was employed to characterize nine clonal isolates, plus an additional replicate of one of the isolates, of the diatom T. pseudonana from culture collections to investigate whether there was any cryptic speciation in the publicly available strains of this species. Morphological analysis using scanning electron microscopy concluded that the strains were indistinguishable. Furthermore, conventional DNA barcoding genes (SSU rDNA, ITS1 and ITS2 rDNA and rbcL), revealed no nucleotide variation among the strains tested. On employing a whole genome fingerprinting technique, Amplified Fragment Length Polymorphism (AFLP), three clusters were revealed, although the level of variation between the clusters was surprisingly low. These findings indicate a low level of diversity among these cultured T. pseudonana strains, despite their wide spatial and temporal distribution and the salinity range of their original habitats. Based on the limited number of available strains, this suggests that T. pseudonana is a highly conserved diatom that nevertheless has an ability to tolerate wide ranges of salinity and populate varied geographic locations.
This is a book about Mormons and American politics, a religious community and a subject that frequently elicit strong reactions. Some readers will have a negative perception of Mormons, others will have a positive view, and some will be Mormons themselves. Still others will not have a prior opinion one way or the other and are reading this book out of curiosity (or perhaps because it was assigned in a class). Since our readers will come to this subject with different backgrounds, let us explain ours.
We recognize that it is unusual to highlight authors’ personal, especially religious, backgrounds in a work of empirical social science. But owing to the fervent opinions Mormonism can engender, many readers will undoubtedly wonder about our connections to the faith. Readers who would rather not know our religious perspectives should stop reading this and skip to Chapter 1. Perhaps, upon finishing the book, they can try to guess our religions and then come back to find out whether they are right.
In the fall of 2012, Hurricane Sandy devastated parts of New York and surrounding areas. Within a few days of the hurricane, Mormon volunteers donned yellow vests with a “Mormon Helping Hands” logo and divided into small teams to help local residents begin to clean up. For the next several months, they spent weekends in “chainsaw brigades,” clearing fallen trees, removing mud and debris from homes, tearing out damaged walls and carpet, and disinfecting what remained (Trapasso 2012). The LDS Church estimates that 28,000 Mormons logged more than 275,000 hours of labor – a remarkable figure given that Mormons make up a very small share of the population in the region (Church of Jesus Christ of Latter-day Saints 2012a).
This vast volunteer effort was led and coordinated by the regional and local LDS leadership. Recall that in Chapter 1 we described the importance of religious authority within Mormonism. With authority comes hierarchy, which means a clear “chain of command” for activating Church members. For example, volunteers from the Princeton First Ward responded to a call from their stake president that was delivered through the ward’s bishop and other ward-level leaders such as the “Elders Quorum President” (the leader of a ward’s priesthood organization for men). Within a week of the hurricane, ward members were asked to attend or participate via conference call in an “all hands” training session to learn the basics of participating in the Mormon Helping Hands program. As part of ten- to twelve-person teams, the typical active ward member spent two or three weekends working from late October to late December. Nor was the volunteer effort limited to Mormons in storm-ravaged communities. Mormons from less-affected areas traveled to New York and the New Jersey shore, camping at LDS ward buildings while they worked for the weekend (Snell 2013).
Mormons have long had an outsized presence in American culture and politics, but they remain largely unknown to most Americans. Recent years have seen the political prominence of Mormons taken to a new level - including the presidential candidacy of Republican Mitt Romney, the prominent involvement of Mormons in the campaign for California's Proposition 8 (anti-gay marriage), and the ascendancy of Democrat Harry Reid to the position of Senate Majority Leader. This book provides the most thorough examination ever written of Mormons' place in the American political landscape - what Mormons are like politically and how non-Mormons respond to Mormon candidates. However, this is a book about more than Mormons. As a religious subculture in a pluralistic society, Mormons are a case study of how a religious group balances distinctiveness and assimilation - a question faced by all faiths.
On March 8, 2013, Dieter F. Uchtdorf, Second Counselor in the First Presidency of the LDS Church, joined a group of religious leaders in a meeting with President Barack Obama to discuss immigration reform. Upon leaving the meeting, Uchtdorf said that what the president said “was totally in line with our values.” While not endorsing any specific proposal, the LDS Church also issued a statement supportive of immigration reform that sounded a lot more like the platform of the Democratic than the Republican Party. “Public officials should create and administer laws that reflect the best of our aspiration as a just and caring society. Such laws will properly balance love for neighbors, family cohesion, and the observance of just and enforceable laws” (Canham 2013).
Some observers might be surprised at the common ground between LDS leaders and the Obama administration on immigration. As we have seen in Chapter 4, Mormons are more heavily Republican than any other religious group. Furthermore, Mitt Romney, President Obama’s opponent in the 2012 election, is a devout Mormon who took a hard line on immigration, even endorsing a policy of “self-deportation” for undocumented immigrants. Yet Uchtdorf, and the LDS leadership more generally, are more in step with Mormons’ attitudes on immigration than Romney – notwithstanding Mormons’ overall conservatism and support of the Republican Party.