bluuebunny/crossref_metadata_2025_split huggingface dataset:
Historical Authenticity and Interpretative Strategy at Hampton Court Palace
Authors: Lipscomb Suzannah 
Published: October 2010

Abstract
To mark the 500th anniversary of Henry VIII's accession, the Tudor palace at Hampton Court in the UK was re-interpreted by a team of curators and interpreters from Historic Royal Palaces. In this article, one of the lead curators reflects on the process. Creating a new visitor experience raised questions about what it means to be authentic in a historic site, and whether interpreters need to choose between authenticity and visitor engagement. The article considers nineteenth-century answers to the question, some real case-study examples from the 2009 re-interpretation, the interpretative principles that were chosen, and some early indicators of success.
Clinical Features Suggestive of Meningitis in Children: A Systematic Review of Prospective Data
Authors: Curtis Sarah , Stobart Kent , Vandermeer Ben , Simel David L. , Klassen Terry 
Published: October 2010

CONTEXT:
Clinical diagnosis of pediatric meningitis is fundamental; therefore, familiarity with evidence underscoring clinical features suggestive of meningitis is important.

OBJECTIVE:
To seek evidence supporting accuracy of clinical features of pediatric bacterial meningitis.

METHODS:
A review of Medline, Embase, the Cumulative Index to Nursing and Allied Health Literature, Web of Science, and PubMed was conducted for all articles of relevance. Articles contained prospective data of clinical features in children with laboratory-confirmed bacterial meningitis and in comparison groups of those without it. Two authors independently assessed quality and extracted data to calculate accuracy data of clinical features.

RESULTS:
Of 14 145 references initially identified, 10 met our inclusion criteria. On history, a report of bulging fontanel (likelihood ratio [LR]: 8.00 [95% confidence interval (CI): 2.4–26]), neck stiffness (7.70 [3.2–19]), seizures (outside febrile-convulsion age range) (4.40 [3.0–6.4]), or reduced feeds (2.00 [1.2–3.4]) raised concern about the presence of meningitis. On examination, jaundice (LR: 5.90 [95% CI: 1.8–19]), being toxic or moribund (5.80 [3.0–11]), meningeal signs (4.50 [2.4–8.3]), neck stiffness (4.00 [2.6–6.3]), bulging fontanel (3.50 [2.0–6.0]), Kernig sign (3.50 [2.1–5.7]), tone up (3.20 [2.2–4.5]), fever of &gt;40°C (2.90 [1.6–5.5]), and Brudzinski sign (2.50 [1.8–3.6]) independently raised the likelihood of meningitis. The absence of meningeal signs (LR: 0.41 [95% CI: 0.30–0.57]) and an abnormal cry (0.30 [0.16–0.57]) independently lowered the likelihood of meningitis. The absence of fever did not rule out meningitis (LR: 0.70 [95% CI: 0.53–0.92]).

CONCLUSIONS:
Evidence for several useful clinical features that influence the likelihood of pediatric meningitis exists. No isolated clinical feature is diagnostic, and the most accurate diagnostic combination is unclear.
Sleeping Through the Night: The Consolidation of Self-regulated Sleep Across the First Year of Life
Authors: Henderson Jacqueline M. T. , France Karyn G. , Owens Joseph L. , Blampied Neville M. 
Published: October 2010

OBJECTIVE:
To investigate the consolidation of infants' self-regulated nocturnal sleep over the first year, to determine when infants first sleep through the night from 24:00 to 05:00 hours (criterion 1), for 8 hours (criterion 2), or between 22:00 and 06:00 hours (the family-congruent criterion 3).

METHODS:
This was a prospective longitudinal study with repeated measures. Parents of 75 typically developing infants completed sleep diaries for 6 days each month for 12 months. Accuracy of parent reports were assessed by using videosomnography.

RESULTS:
The largest mean increase (504 minutes) in self-regulated sleep length occurred from 1 to 4 months. The survival function decreased most rapidly (indicating greatest probability of meeting criteria) for criterion 1 at 2 months, criterion 2 at 3 months, and criterion 3 at 4 months. A 50% probability of meeting criteria 1 and 2 occurred at 3 months and at 5 months for criterion 3. The hazard function identified 2 months (criteria 1 and 2) and 3 months (criterion 3) as the most likely ages for sleeping through the night. At 12 months, 11 infants did not meet criteria 1 or 2, whereas 21 failed to meet criterion 3.

CONCLUSIONS:
The most rapid consolidation in infant sleep regulation occurs in the first 4 months. Most infants are sleeping through the night at 2 and 3 months, regardless of the criterion used. The most developmentally and socially valid criterion for sleeping through is from 22:00 to 0:600 hours. At 5 months, more than half of infants are sleeping concurrently with their parents.
LABA in patients with stage I COPD and mild sleep apnea syndrome: a pilot study
Authors: Kopitovic Ivan , Kojicic Marija , Drvenica Mirjana , Ilic Miroslav 
Published: October 2010

Abstract
Patients suffering from both sleep apnea-hypopnea syndrome (SAHS) and chronic obstructive pulmonary disease (COPD) have a more severe form of sleep apnea. Knowing all pathophysiological aspects that mutually interact in sleep disorders and COPD, we aimed to investigate if the introduction of long-acting β2 agonists (LABA) during the night could improve overnight oxygenation and the ability to perform daily activities in stage I COPD patients with mild SAHS. We conducted a prospective study of 22 patients with stage I COPD and SAHS confirmed by overnight polygraph screening, without nocturnal CPAP treatment. During twelve weeks, all patients used LABA (salmeterol 50 mcg) with a metered dose inhaler before bedtime. The levels of apnea hypopnea index, oxygen saturation, heart rate, and Epworth daytime sleepiness scale (ESS) were recorded before and after the treatment. There was a significant improvement of lowest and average overnight oxygenation compared to baseline (mean difference 2.1±0.42, p<0.0001; 1.7±0.3, p<0.0001, respectively). In addition, patients reported reduction in daytime sleepiness according to ESS (mean difference 1.23±0.51; p=0.03). Fewer patients exhibited tachycardia when on salmeterol (68 vs. 41%; p=0.01). Use of inhaled salmeterol improves overnight oxygenation in patients with stage I COPD and SAHS. Future prospective studies are warranted to confirm this potentially beneficial effect of long-acting β2 agonists.
A method to estimate roe deer Capreolus capreolus density at various spatial scales in a fragmented landscape
Authors: Iannuzzo Daniele , Focardi Stefano , Raganella‐Pelliccioni Elisabetta , Toso Silvano 
Published: October 2010

AbstractEstimating the density of wildlife populations is still a difficult task, especially when you work with spatially open populations and you must relax the assumption of closure, which is the basis of most methods currently used. Further difficulties arise when obtaining density estimates at small spatial scales. Using eight years (1996‐2003) to monitor data from a roe deer Capreolus capreolus population that lives in a sub‐Mediterranean environment in central Italy, we were able to estimate local density (at a spatial scale of one home range) by using a large sample of radio‐marked animals. Local density estimates could be obtained only in zones in which radio‐marked deer were available in sufficient numbers. To estimate local density in the whole study area, we developed a calibration model, which allowed us to infer density where radio‐marked deer were absent or scarce. To do this, we computed the mark‐resight density estimates (using radio‐marked animals) and related these estimates to linear and non‐linear functions of animal count and surface area of fields, to obtain a set of density estimators. Then, we selected a linear combination of such estimators, whose quality was assessed by cross‐validation. Our results show that the method we propose can be effective in investigating small‐scale spatial structure of density in a roe deer population. We see several potential applications of this method for both research and management purposes.
Effects of simulated moose Alces alces browsing on the morphology of rowan Sorbus aucuparia
Authors: Jager Nathan R. De , Pastor John 
Published: October 2010

AbstractIn much of northern Sweden moose Alces alces browse rowan Sorbus aucuparia heavily and commonly revisit previously browsed plants. Repeated browsing of rowan by moose has created some concern for its long‐term survival in heavily browsed areas. We therefore measured how four years of simulated moose browsing at four population densities (0, 10, 30 and 50 moose/1,000 ha) changed plant height, crown width, available bite mass, the number of bites per plant and per plant forage biomass of rowan saplings. Increased biomass removal led to a significant decline in plant height (P < 0.001), but a significant increase in the number of bites per plant (P = 0.012). Increases in the number of bites per plant more than compensated for weak decreases in bite mass, leading to a weak increase in per plant forage biomass (P = 0.072). With the decline in plant height and increase in the number of stems per plant, a greater number of bites remain within the height reach of moose relative to unbrowsed controls. Moose therefore stand to benefit from revisiting previously browsed plants, which may result in feeding loops between moose and previously browsed rowan saplings.
Individual heterogeneity as a pitfall in population estimates based on non‐invasive genetic sampling: a review and recommendations
Authors: Ebert Cornelia , Knauer Felix , Storch Ilse , Hohmann Ulf 
Published: October 2010

AbstractIn recent years, much progress has been made in non‐invasive genetic methods for various purposes including population estimation. Previous research focused on optimising laboratory protocols and assessing genotyping errors. However, an important source of bias in population estimates still remains in the field sampling methods. The probability of animals being sampled can vary according to sex, age, social status or home‐range location. In this article, we present relevant literature reviewed to provide an overview of the occurrence of individual heterogeneity (IH) in the field, and how it can be minimised, e.g. by adaptation of sampling design. We surveyed 38 articles describing non‐invasive population estimation for 12 mammal and two bird species. The majority of these studies discussed IH as a potential problem. The detectability of IH via goodness‐of‐fit testing depended on the average capture probability reported in the studies. Field tests for assessing variation in sampling probabilities or validating estimations were carried out in only 11 of the 38 studies. The results of these tests point out that IH is a widespread problem in non‐invasive population estimation, which deserves closer attention not only in the development of laboratory protocols but also concerning the sampled species' characteristics and the field methods. IH can be reduced in the field by carefully adapting the sampling design to the characteristics of the studied population. If this is not reasonable, it may be better to switch to a different sampling strategy.
Neurobiological Basis of Parenting Disturbance
Authors: Newman Louise K. , Harris Melissa , Allen Joanne 
Published: October 2010

Objective: It has been proposed that early attachment relationships shape the structure and reactivity of social brain structures that underlie later social capacities. We provide a review of the literature surrounding the development of neurological regulatory systems during infancy and outline recent research suggesting these systems go on to underlie adaptive parental responses. Method: We review evidence in the peer-reviewed psychiatric literature including (i) observational human literature on the neurobiological and social sequelae of early parenting experiences, (ii) experimental animal literature on the effects of early maternal care on neurological development, (iii) experimental animal literature on the neurobiological underpinnings of parenting behaviours, (iv) observational and fMRI evidence on the neurobiological correlates of parenting behaviours, (v) functional and volumetric imaging studies on adults affected by borderline personality disorder. Results: The development of infant regulatory systems is influenced by early parenting experiences. These frontolimbic regulatory systems are also heavily implicated in normal parental responses to infant cues. These frontolimbic disturbances are also observed in studies of borderline personality disorder; a disorder associated with poor emotional regulation, early trauma and disturbed parenting. Conclusions: While the current literature is limited to animal models of abnormal care giving, existing disorders associated with deficits in regulatory capacity and abnormal frontolimbic functioning may yet provide a human model of the neurobiology of parenting disturbance.
An integrated lightweight ice-penetrating radar system
Authors: Mingo Laurent , Flowers Gwenn E. 
Published: October 2010

AbstractWe describe a portable low-frequency impulse radar system intended for ground-based surveys that employs off-the-shelf hardware integrated with custom-designed software. The hardware comprises a 1–200 MHz transmitter, digitizer, computer and GPS receiver, which together weigh ∼1.5 kg. The entire system, including waterproof enclosures and batteries suited for >8 hours of continuous operation, weighs <10 kg plus the weight of the antenna housing. The system design is flexible, permitting hardware components such as the digitizer or navigation device to be exchanged. The software includes acquisition parameter control, real-time visual ice-depth rendering and data management capabilities using a hierarchical data format. The system described here has been successfully used to sound polythermal ice up to ∼220 m thick in ski-based surveys in the Yukon, Canada, and temperate ice up to ∼550 m thick in machine-based surveys in Iceland.
Seasonal variability in the dynamics of marine-terminating outlet glaciers in Greenland
Authors: Howat Ian M. , Box Jason E. , Ahn Yushin , Herrington Adam , McFadden Ellyn M. 
Published: October 2010

AbstractRecent studies indicate that the dynamics of fast-flowing, marine-terminating outlet glaciers of the Greenland ice sheet may be sensitive to climate and ocean forcing on sub-annual timescales. Observations of seasonal behavior of these glaciers at such high temporal resolution, however, are currently few. Here we present observations of front position, flow speed, near-surface air temperature and ocean conditions for six large marine-terminating glaciers in the Uummannaq region of West Greenland, to investigate controls on short-term glacier dynamics. As proposed by other studies, we find that seasonal front advance and retreat correlates with the formation and disappearance of an ice melange. Our data suggest that high sea-surface temperature, anomalously low sea-ice concentration and reduced melange formation in early 2003 have triggered multi-year retreat of several glaciers in the study area, which is consistent with other regions in Greenland. Of the stable glaciers, only Rink Isbræ exhibits a seasonal speed variation that correlates with variations in front position, with the others undergoing mid-summer deceleration that indicates the effects of subglacial meltwater discharge and drainage system evolution. Drainage of supraglacial lakes and water-filled crevasses results in substantial decreases in speed (40–60%) on fast-flowing glaciers. Our results demonstrate that attempts to model ice-sheet evolution must take into account short-timescale flow dynamics resulting from drainage events and oceanographic conditions.
Slow drag in wet-snow avalanche flow
Authors: Sovilla B. , Kern M. , Schaer M. 
Published: October 2010

AbstractWe report impact pressures exerted by three wet-snow avalanches on a pylon equipped with piezoelectric load cells. These pressures were considerably higher than those predicted by conventional avalanche engineering guidelines. The time-averaged pressure linearly increased with the immersion depth of the load cells and it was about eight times larger than the hydrostatic snow pressure. At the same immersion depth, the pressures were very similar for all three avalanches and no dependency between avalanche velocity and pressure was apparent. The pressure time series were characterized by large fluctuations. For all immersion depths and for all avalanches, the standard deviations of the fluctuations were, on average, about 20% of the mean value. We compare our observations with results of slow-drag granular experiments, where similar behavior has been explained by formation and destruction of chain structures due to jamming of granular material around the pylon, and we propose the same mechanism as a possible microscale interpretation of our observations.
Temporal and spatial variation of stable-isotope ratios and accumulation rates in the hinterland of Neumayer station, East Antarctica
Authors: Fernandoy Francisco , Meyer Hanno , Oerter Hans , Wilhelms Frank , Graf Wolfgang , Schwander Jakob 
Published: October 2010

AbstractFour firn cores were retrieved in 2007 at two ridges in the area of the Ekström Ice Shelf, Dronning Maud Land, coastal East Antarctica, in order to investigate the recent regional climate variability and the potential for future extraction of an intermediate-depth core. Stable water-isotope analysis, tritium content and electrical conductivity were used to date the cores. For the period 1981–2006 a strong and significant correlation between the stable-isotope composition of firn cores in the hinterland and mean monthly air temperatures at Neumayer station was (r = 0.54−0.71). No atmospheric warming or cooling trend is inferred from our stable-isotope data for the period 1962–2006. The stable-isotope record of the ice/firn cores could expand well beyond the meteorological record of the region. No significant temporal variation of accumulation rates was detected. However, decreasing accumulation rates were found from coast to hinterland, as well as from east (Halvfarryggen) to west (Søråsen). The deuterium excess (d) exhibits similar differences (higher d at Søråsen, lower d at Halvfarryggen), with a weak negative temporal trend on Halvfarryggen (0.04‰ a−1), probably implying increasing oceanic input. We conclude that Halvfarryggen acts as a natural barrier for moisture-carrying air masses circulating in the region from east to west.
Rate-effect experiments on round-tipped penetrometer insertion into uniform snow
Authors: Floyer James A. , Bruce Jamieson J. 
Published: October 2010

AbstractSnow penetrometers are being developed to detect stratigraphy indicative of slab avalanches. Results are presented here from experiments performed to assess the relationship between the velocity of a round-tipped penetrometer through uniform snow and the resulting force response. The range of velocities used is commensurate with that used to drive a manually driven penetrometer through the snow. A characteristic spike is noted in profiles during the initial stage of deformation, which appears to be more pronounced for the harder snow layers tested. An investigation of snow deformation using video analysis of a split-axis rod deforming snow against a clear plastic window indicates that the spike in the force signal corresponds to the development of a compaction zone below the penetrometer tip. Once shear forces that develop in the compacted snow are overcome, deformation proceeds in a steady state and there is little or no relationship between the force response and velocity over the velocity range of our experiments.
Long-term avalanche hazard assessment with a Bayesian depth-averaged propagation model
Authors: Eckert N. , Naaim M. , Parent E. 
Published: October 2010

AbstractWhile performing statistical–dynamical simulations for avalanche predetermination, a propagation model must reach a compromise between precise description of the avalanche flow and computation times. Crucial problems are the choice of appropriate distributions describing the variability of the different inputs/outputs and model identifiability. In this study, a depth-averaged propagation model is used within a hierarchical Bayesian framework. First, the joint posterior distribution is estimated using a sequential Metropolis–Hastings algorithm. Details for tuning the estimation algorithm are provided, as well as tests to check convergence. Of particular interest is the calibration of the two coefficients of a Voellmy friction law, with model identifiability ensured by prior information. Second, the point estimates are used to predict the joint distribution of different variables of interest for hazard mapping. Recent developments are employed to compute pressure distributions taking into account the rheology of snow. The different steps of the method are illustrated with a real case study, for which all possible decennial scenarios are simulated. It appears that the marginal distribution of impact pressures is strongly skewed, with possible high values for avalanches characterized by low Froude numbers. Model assumptions and results are discussed.
Should We Aim for Consensus?
Authors: Beatty John , Moore Alfred 
Published: October 2010

ABSTRACTThere can be good reasons to doubt the authority of a group of scientists. But those reasons do not include lack of unanimity among them. Indeed, holding science to a unanimity or near-unanimity standard has a pernicious effect on scientific deliberation, and on the transparency that is so crucial to the authority of science in a democracy. What authorizes a conclusion is the quality of the deliberation that produced it, which is enhanced by the presence of a non-dismissible minority. Scientists can speak as one in more ways than one. We recommend a different sort of consensus that is partly substantive and partly procedural. It is a version of what Margaret Gilbert calls “joint acceptance”–we call it “deliberative acceptance.” It capitalizes on there being a persistent minority, and thereby encourages accurate reporting of the state of agreement and disagreement among deliberators.
Group Justification in Science
Authors: Rolin Kristina 
Published: October 2010

ABSTRACTAn analysis of group justification enables us to understand what it means to say that a research group is justified in making a claim on the basis of evidence. I defend Frederick Schmitt's (1994) joint account of group justification by arguing against a simple summative account of group justification. Also, I respond to two objections to the joint account, one claiming that social epistemologists should always prefer the epistemic value of making true judgments to the epistemic value of maintaining consistency, and another one claiming that the notion of joint commitment implicit in the joint account is epistemically unacceptable.