Catalogue Search | MBRL
Are you sure you want to remove the book from the shelf?
{{itemTitle}}
279
result(s) for
"Harris, Jonathan (Jonathan P.)"
Sort by:
The utopian globalists : artists of worldwide revolution, 1919-2009
\"An innovative history and critical account mapping the ways artists and their works have engaged with, and offered commentary on, modern spectacle in both capitalist and socialist modernism over the past ninety years. Focuses on artists whose work expresses the concept of revolutionary social transformation Provides a strong historical narrative that adds structure and clarity Features a cogent and innovative critique of contemporary art and institutions Covers 100 years of art from Vladimir Tatlin's constructivist 'Monument to the Third International', to Picasso's late 1940s commitment to Communism, to the Unilever Series sponsored Large Artworks installed at London's Tate Modern since 2000. Includes the only substantial account in print of John Lennon and Yoko Ono's 1969 Montreal 'Bed-in' Offers an accessible description and interpretation of Debord's 'society of the spectacle' theory \"-- Provided by publisher.
Book
Validation of the Uscom BP+ automated oscillometric blood pressure monitor for professional office use in children and adolescents according to the AAMI/ESH/ISO Universal Standard (ISO 81060-2:2018)
To (1) assess the accuracy of the Uscom BP+ oscillometric upper-arm professional blood pressure (BP) monitor in children and adolescents as per the AAMI/ESH/ISO Universal Standard (ISO 81060-2:2018); (2) assess the suitability of a non-standard cuff; and (3) assess the impact of motion artefact on device accuracy and precision. Children and adolescents were recruited to fulfil the sex/cuff distribution criteria of the Universal Standard. Single arm sequential BP measurements were used, the test device measured on deflate with an altered child/adolescent algorithm, using three standard (Extra Small, Small Adult, Adult) and, as exploratory analysis, additionally in one non-standard cuff (Wide Range; WR) (arm circumferences: 12–17, 16–24, 22–32, 22–42 cm, respectively). The presence of motion artefact was determined and its impact on BP assessed. One-hundred-forty participants were recruited with 123 included for analysis. When using the Extra Small, Small Adult and Adult cuffs only, the BP+ passed both criteria (95 participants, 321 pairs, −0.1 ± 7.3/ − 1.6 ± 7.6 and 5.72/6.50 mmHg systolic/diastolic) (reference thresholds: ≤5 ± 8, ≤6.95/6.76, respectively). The inclusion of the WR cuff showed unacceptable imprecision, and motion artefact had a substantial influence on test device precision. The Uscom BP+ fulfilled the requirements of the Universal Standard in children and adolescents when using the altered algorithm with the three standard cuffs and can be recommended for clinical use. The WR cuff cannot be recommended in this population in measure-on-deflate mode due to its imprecision. Additionally, BP measurement accuracy in children and adolescents can be improved through inclusion of a motion artefact detection system.
Journal Article
Multi-scale analysis of habitat fragmentation on small-mammal abundance and tick-borne pathogen infection prevalence in Essex County, MA
Habitat fragmentation and heterogeneity transform otherwise contiguous tracks of forest into smaller patches in the northeastern U.S. and likely impact abundances, movement patterns, and disease transmission pathways for small-mammal communities at multiple scales. We sought to determine the structure of a small-mammal community in terms of mammal abundance and infection prevalence of Borrelia burgdorferi sensu stricto (s.s.), Anaplasma phagocytophilum , and Babesia microti within a fragmented landscape in Essex County, Massachusetts, USA. We studied communities at multiple spatial scales, including vegetation, edge type, and landscape (including 200-m, 500-m, and 1000-m radii) scales. A total of 16 study sites were chosen to represent four edge types: interior forest, pasture edge, natural edge, and residential edge. At each site, we trapped small mammals and conducted vegetation surveys and GIS analysis. Upon capture, a tissue sample was collected to analyze for presence of pathogens. Northern short-tailed shrew ( Blarina brevicauda ) abundance did not differ based on edge type, whereas abundance of the white-footed mouse ( Peromyscus leucopus ) was greatest at pasture edges, although the relationship was relatively weak. White-footed mouse abundance was negatively associated with amount of forested area within a 500-m radius, whereas northern short-tailed shrew abundance demonstrated a positive relationship with fragmentation indices at the 200-m radius. White-footed mice captured at interior-forest habitat were more likely be infected with B . burgdorferi (s.s.) than individuals from edge habitat. Greater prevalence of B . burgdorferi infection of white-footed mice in forest interiors compared to edge habitats counters previous studies. Reasons for this and implications are discussed.
Journal Article
Repeatability of wildlife surveys for estimating abundance: A method to assess the consistency of detection probability and animal availability
A primary consideration of abundance studies that use unmarked animals is whether survey counts accurately reflect the population size or if unknown variation in animal movement or detection probability biases counts irrespective of population size. We posited that high repeatability in counts among temporally replicated surveys would indicate that counts are a good index of abundance. We temporally replicated 49 nocturnal spotlight surveys of white-tailed deer ( Odocoileus virginianus ) up to three times each ( n = 128 total samples) to test the repeatability of this commonly used wildlife monitoring technique. Repeatability was high ( R = 0.86), suggesting spring spotlight surveys provide a reliable index of deer population size in Iowa, USA. Fourteen percent of the variation among replicated counts was explained by day of year and, to a lesser degree, a vegetation green-up index. Detection probability was high (~0.70) early in the sampling season and declined considerably during the following 6 weeks. Deer abundance was greater at sites with higher percent landcovers of forest and hay/pasture and was lower at sites with higher landcover in crops. Our findings suggest deer managers should sample prior to green-up in the spring to maximize the proportion of the population that is detectable, and that accounting for seasonality on detection estimation is important for reliable abundance estimates if sampling occurs over a range of phenological progression. Finally, we show that temporal replication of surveys is a logistically feasible method to assess the reliability of abundance estimates from study designs that are normally conducted with single visits.
Journal Article
Variational quantum unsampling on a quantum photonic processor
A promising route towards the demonstration of near-term quantum advantage (or supremacy) over classical systems relies on running tailored quantum algorithms on noisy intermediate-scale quantum machines. These algorithms typically involve sampling from probability distributions that—under plausible complexity-theoretic conjectures—cannot be efficiently generated classically. Rather than determining the computational features of output states produced by a given physical system, we investigate what features of the generating system can be efficiently learnt given direct access to an output state. To tackle this question, here we introduce the variational quantum unsampling protocol, a nonlinear quantum neural network approach for verification and inference of near-term quantum circuit outputs. In our approach, one can variationally train a quantum operation to unravel the action of an unknown unitary on a known input state, essentially learning the inverse of the black-box quantum dynamics. While the principle of our approach is platform independent, its implementation will depend on the unique architecture of a specific quantum processor. We experimentally demonstrate the variational quantum unsampling protocol on a quantum photonic processor. Alongside quantum verification, our protocol has broad applications, including optimal quantum measurement and tomography, quantum sensing and imaging, and ansatz validation.
The variational quantum unsampling protocol provides a way to realize verification and inference of near-term quantum circuit outputs. This protocol is then experimentally verified on a quantum photonic processor.
Journal Article
Recovery of Sphagnum from drought is controlled by species-specific moisture thresholds
As the largest terrestrial carbon (C) store, peatlands are vital to meeting climate targets.
Sphagnum
, a genus of ca. 350 species, sustains many peatlands through its high water content and chemistry which inhibits decomposition and vascular plant proliferation. However, many peatlands face increased risk of drought due to climate change, and how
Sphagnum
will respond and recover from drought is unknown. We measured moisture content, CO
2
and methane (CH
4
) flux, and photosynthetic pigments in two species,
S. palustre
and
S. squarrosum
, over increasing drought (1–10 weeks) and recovery (1–10 weeks) periods. We identified biomass moisture thresholds of 12 g g
− 1
(
S. palustre
) and 18 g g
− 1
(
S. squarrosum
) below which irreversible damage occurred to photosynthesis. Due to higher moisture retention, and a lower moisture threshold,
S. palustre
withstood longer drought than
S. squarrosum
. These species-specific thresholds provide important insight for modelling peatland C sinks and for sustainable peatland restoration.
Journal Article
Mesopredator predation risk limits northern bobwhite nesting habitat
Predators can significantly limit the amount of available habitat for vulnerable prey. Encouraging spatial segregation of predators and prey through habitat management prescriptions may be a useful tool to increase productivity and abundances of prey species of conservation concern. We estimated the total area of low‐risk nesting habitat by interacting predator habitat selection models with northern bobwhite (Colinus virginianus) nest‐site selection models. We used trail cameras, transect sampling, spotlighting transects, and incidental tracking to survey and map occurrences of mesopredators at a site in western Oklahoma, USA. We created broad‐scale resource selection function models for bobwhite nest‐site and mesopredator habitat selection using generalized linear models to create maps of occurrence probability in ArcGIS. Bobwhite nests were more likely to be depredated in areas of high selection by coyotes (Canis latrans) and striped skunks (Mephitis mephitis) compared to areas with low mesopredator selection. Approximately 392 ha of bobwhite nesting habitat (17%) had low probabilities of selection by both coyotes and striped skunks. Our results demonstrate the need for incorporating species' interactions into estimations of available habitat. Based on the total area of highly selected cover by northern bobwhite, approximately 29% of the study area would have been deemed suitable for nesting. However, only 5% of that area is predicted to have a low predation risk.
Journal Article
Broad-scale predictions of herpetofauna occupancy and colonization in an agriculturally dominated landscape
Predictions of species occurrence allow land managers to focus conservation efforts on locations where species are most likely to occur. Such analyses are rare for herpetofauna compared to other taxa, despite increasing evidence that herptile populations are declining because of landcover change and habitat fragmentation. Our objective was to create predictions of occupancy and colonization probabilities for 15 herptiles of greatest conservation need in Iowa. From 2006–2014, we surveyed 295 properties throughout Iowa for herptile presence using timed visual-encounter surveys, coverboards, and aquatic traps. Data were analyzed using robust design occupancy modeling with landscape-level covariates. Occupancy ranged from 0.01 (95% CI = -0.01, 0.03) for prairie ringneck snake ( Diadophis punctatus arnyi ) to 0.90 (95% CI = 0.898, 0.904) for northern leopard frog ( Lithobates pipiens ). Occupancy for most species correlated to landscape features at the 1-km scale. General patterns of species’ occupancy included negative effects of agricultural features and positive effects of water features on turtles and frogs. Colonization probabilities ranged from 0.007 (95% CI = 0.006, 0.008) for spiny softshell turtle ( Apalone spinifera ) to 0.82 (95% CI = 0.62, 1.0) for western fox snake ( Pantherophis ramspotti ). Colonization probabilities for most species were best explained by effects of water and grassland landscape features. Predictive models had strong support (AUC > 0.70) for six out of 15 species (40%), including all three turtles studied. Our results provide estimates of occupancy and colonization probabilities and spatial predictions of occurrence for herptiles of greatest conservation need across the state of Iowa.
Journal Article