bluuebunny/crossref_metadata_2025_split huggingface dataset:
Low‐fidelity Paediatric Surgical Simulation: Description of Models in Low‐Resource Settings
Authors: McClelland T. J. , Ford K. , Dagash H. , Lander A. , Lakhoo K. 
Published: January 2019

AbstractBackgroundSurgical simulation is an important aspect of competency‐based training. Recent trends in paediatric surgical simulations have migrated towards high‐fidelity simulation with advanced technology resulting in models which are expensive and largely inaccessible in low‐ and middle‐income countries.MethodsThis article describes four wet simulation models of common surgical procedures in paediatric population created with animal tissue from local abattoir. The models are designed to provide a framework for others to make the models and benefit from the training opportunity they provide especially in low–middle‐income countries.ResultsThe models created in the wet laboratory are neonatal bowel anastomosis, duodenoduodenostomy for discrepancy anastomosis, gastrostomy and pyeloplasty. These models are easily reproducible in resource‐challenged healthcare setting as they are low cost, utilise locally available resources and require only a basic set of surgical instruments with which to perform the procedures.ConclusionThese models provide locally accessible material for sustainable training programmes which are fundamental in developing safe and affordable surgical care worldwide.
Lung-diffusing capacity for carbon monoxide predicts early complications after cardiac surgery
Authors: Kuwata Toshiyuki , Shibasaki Ikuko , Ogata Koji , Ogawa Hironaga , Takei Yusuke , Seki Masahiro , Kiriya Yuriko , Fukuda Hirotsugu 
Published: January 2019

Abstract
Purpose
Preoperative pulmonary dysfunction has been associated with increased operative mortality and morbidity after cardiac surgery. This study aimed to determine whether values for the diffusing capacity of the lung for carbon monoxide (DLCO) could predict postoperative complications after cardiac surgery.

Methods
This study included 408 consecutive patients who underwent cardiac surgery between June 2008 and December 2015. DLCO was routinely determined in all patients. A reduced DLCO was clinically defined as %DLCO < 70%. %DLCO was calculated as DLCO divided by the predicted DLCO. The association between %DLCO and in-hospital mortality was assessed, and independent predictors of complications were identified by a logistic regression analysis.

Results
Among the 408 patients, 338 and 70 had %DLCO values of ≥ 70% and < 70%, respectively. Complications were associated with in-hospital mortality (P < 0.001), but not %DLCO (P = 0.275). A multivariate logistic regression analysis with propensity score matching identified reduced DLCO as an independent predictor of complications (OR, 3.270; 95%CI, 1.356–7.882; P = 0.008).

Conclusions
%DLCO is a powerful predictor of postoperative complications. The preoperative DLCO values might provide information that can be used to accurately predict the prognosis after cardiac surgery.

Clinical trial registration number
UMIN000029985.
Efficiency of post-stratification for a large-scale forest inventory—case Finnish NFI
Authors: Haakana Helena , Heikkinen Juha , Katila Matti , Kangas Annika 
Published: January 2019

Abstract
Key message
Post-stratification based on remotely sensed data is an efficient method in estimating regional-level results in the operational National Forest Inventory. It also enables calculating the results accurately for smaller areas than with the default method of using the field plots only.

Context
The utilization of auxiliary information in survey sampling through model-assisted estimation or post-stratification has gained popularity in forest inventory recently. However, post-stratification at a large scale involves practical concerns such as the availability of auxiliary data independent of the sample at hand, and a large number of variables for which the results are needed.

Aims
We assessed the efficiency of two different types of post-stratification, either post-stratifying for each variable of interest separately or using one post-stratification for all variables, compared to the estimation based on the field sample plots only. In addition, we examined the precision of area and volume estimates, and the efficiency of post-stratification at different spatial scales.

Methods
For post-stratification, we used the volume maps based on Landsat satellite imagery, digital map data, and the sample plot data of the previous inventory. The efficiencies of post-stratifications based on the mean volume and the mean volumes by tree species were compared.

Results
In estimating the total volume, the relative efficiency of post-stratification compared to field plot based estimation was 1.54–3.54 over the provinces in South Finland. In estimating the volumes by tree species groups, the relative efficiency was 0.93–2.39. The gain with a separate stratification compared to the stratification based on total mean volume for all variables was at largest 0.69. In the small test areas, the relative standard errors of the total volume estimates decreased on average by 33% by using post-stratification instead of sample plots only. The mean relative efficiency was 2.36.

Conclusion
The utilization of an old forest resources map and post-stratification based on the mean volume is an operational approach for the National Forest Inventory. Post-stratification also enables calculating the results accurately for markedly smaller areas than with the field plots only. Post-stratification reduced the probability of very high sampling variances, making the results more robust.
Amplification and structure of streamwise-velocity fluctuations in compression-corner shock-wave/turbulent boundary-layer interactions
Authors: Mustafa M. A. , Parziale N. J. , Smith M. S. , Marineau E. C. 
Published: January 2019

In this work, we study the effect of the compression-corner angle on the streamwise turbulent kinetic energy (sTKE) and structure in Mach 2.8 flow. Krypton tagging velocimetry (KTV) is used to investigate the incoming turbulent boundary layer and flow over$8^{\circ }$,$16^{\circ }$,$24^{\circ }$and$32^{\circ }$compression corners. The experiments were performed in a 99 %$\text{N}_{2}$and 1 % Kr gas mixture in the Arnold Engineering Development Complex (AEDC) Mach 3 Calibration Tunnel (M3CT) at$Re_{\unicode[STIX]{x1D6E9}}=1750$. A figure of merit is defined as the wall-normal integrated sTKE ($\overline{\text{sTKE}}$), which is designed to identify turbulence amplification by accounting for the root-mean-squared (r.m.s.) velocity fluctuations and shear-layer width for the different geometries. We observe that the$\overline{\text{sTKE}}$increases as an exponential with the compression-corner angle near the root when normalized by the boundary-layer value. Additionally, snapshot proper orthogonal decomposition (POD) is applied to the KTV results to investigate the structure of the flow. From the POD results, we extract the dominant flow structures and compare each case by presenting mean-velocity maps that correspond to the largest positive and negative POD mode coefficients. Finally, the POD spectrum reveals an inertial range common to the boundary-layer and each compression-corner flow that is present after the first${\approx}10$dominant POD modes.
On quotient modules of H2(𝔻n): essential normality and boundary representations
Authors: Das B. Krishna , Gorai Sushil , Sarkar Jaydeb 
Published: January 2019

AbstractLet 𝔻n be the open unit polydisc in ℂn, $n \ges 1$, and let H2(𝔻n) be the Hardy space over 𝔻n. For $n\ges 3$, we show that if θ ∈ H∞(𝔻n) is an inner function, then the n-tuple of commuting operators $(C_{z_1}, \ldots , C_{z_n})$ on the Beurling type quotient module ${\cal Q}_{\theta }$ is not essentially normal, where
$${\rm {\cal Q}}_\theta = H^2({\rm {\open D}}^n)/\theta H^2({\rm {\open D}}^n)\quad {\rm and}\quad C_{z_j} = P_{{\rm {\cal Q}}_\theta }M_{z_j}\vert_{{\rm {\cal Q}}_\theta }\quad (j = 1, \ldots ,n).$$Rudin's quotient modules of H2(𝔻2) are also shown to be not essentially normal. We prove several results concerning boundary representations of C*-algebras corresponding to different classes of quotient modules including doubly commuting quotient modules and homogeneous quotient modules.
The Sociology of Climate Change as a Sociology of Loss
Authors: Elliott Rebecca 
Published: January 2019

AbstractClimate change involves human societies in problems of loss: depletion, disappearance, and collapse. The climate changes and changes other things, in specifically destructive ways. What can and should sociology endeavour to know about this particular form of social change? This article outlines the sociology of loss as a project for sociological engagement with climate change, one that breaks out of environmental sociology as the conventional silo of research and bridges to other subfields. I address four interrelated dimensions of loss that climate change presents: the materiality of loss; the politics of loss; knowledge of loss; and practices of loss. Unlike “sustainability”—the more dominant framing in the social sciences of climate change—the sociology of loss examines what does, will, or must disappear rather than what can or should be sustained. Though the sociology of loss requires a confrontation with the melancholia of suffering people and places, it also speaks to new solidarities and positive transformations.
The Rise of the Idea of Model in Policymaking
Authors: Alasuutari Pertti , Rautalin Marjaana , Tyrkkö Jukka 
Published: January 2019

AbstractThe paper addresses the question whether national decision-making has become increasingly interdependent in recent decades, and what role “world models” play in any such trend. These questions are scrutinised by utilising the “Historic Hansard” corpus, which contains all records of the UK Parliament from 1803 to 2005, complemented by other corpora. The results show that references to other countries were most frequent in parliamentary debates very early in the 19th century. However, allusions to other countries have evolved from referencing case examples to referencing policies that are constructed and branded as models. The idea of transferable models caught on particularly strongly from the 1950s onward. The other corpora used for the study confirmed that these changes reflect a global trend. Hence, the post-war era has witnessed a worldwide spread of the idea of model as a precondition for a global proliferation of named models.
ON THE NUMBER OF REAL CLASSES IN THE FINITE PROJECTIVE LINEAR AND UNITARY GROUPS
Authors: AMPARO ELENA , VINROOT C. RYAN 
Published: January 2019

AbstractWe show that for any n and q, the number of real conjugacy classes in $ \rm{PGL}(\it{n},\mathbb{F}_q) $ is equal to the number of real conjugacy classes of $ \rm{GL}(\it{n},\mathbb{F}_q) $ which are contained in $ \rm{SL}(\it{n},\mathbb{F}_q) $, refining a result of Lehrer [J. Algebra36(2) (1975), 278–286] and extending the result of Gill and Singh [J. Group Theory14(3) (2011), 461–489] that this holds when n is odd or q is even. Further, we show that this quantity is equal to the number of real conjugacy classes in $ \rm{PGU}(\it{n},\mathbb{F}_q) $, and equal to the number of real conjugacy classes of $ \rm{U}(\it{n},\mathbb{F}_q) $ which are contained in $ \rm{SU}(\it{n},\mathbb{F}_q) $, refining results of Gow [Linear Algebra Appl.41 (1981), 175–181] and Macdonald [Bull. Austral. Math. Soc.23(1) (1981), 23–48]. We also give a generating function for this common quantity.
Immunization with adultSchistosoma mansonitegument, treated with sub-curative praziquantel, partially protects mice against the infection
Authors: El-Aswad B.E.W. , Harba N.M. , Moharm I.M. , Mahmoud S.F. 
Published: January 2019

AbstractThe tegument of schistosomes is a source of many potential anti-Schistosomavaccine molecules. This work aimed to assess the protective effects of the adultSchistosoma mansonitegument treated (TT) with sub-curative praziquantel (PZQ), whetherin vivo(in vivoTT) orin vitro(in vitroTT), in murine schistosomiasis.In vitroTT andin vivoTT showed great similarity, and they differed from untreated tegument antigen (Teg) in terms of quantity and quality of protein bands on SDS–PAGE. Two immunization trials were performed, each with 50 mice, divided randomly into five groups of 10 mice each: (1) uninfected control mice (UC), (2) infected mice given phosphate buffer saline + adjuvant (PBS + adjuvant), (3) infected, Teg vaccinated, (4) infected,in vivoTT vaccinated, and (5) infected,in vitroTT vaccinated. All the immunizations with antigens induced mixed Th1/Th2 immune responses, as indicated by significantly high (P< 0.001) specific IgG2a and IgG1 levels, with Th1 predominating, as shown by a diminished IgG1/IgG2a ratio, as well as a high serum concentration of IFN-γ, an absence of IL-4 and increased IL-10.In vitroTT gave the most pronounced response. With respect to reduction of total worm burden, relative to PBS + adjuvant mice,in vitroTT achieved the highest significant (P< 0.001) results, followed byin vivoTT and Teg (51.8–57.04%, 44.6–50.2% and 35.2–39.3%, respectively). In scanning electron microscopy studies, all the tested antigens caused tegumental changes in adult worms, with the worst occurring within vitroTT, such as retracted ventral sucker, an effect on the gynaecophoric canal, and changes to tubercles. In conclusion,in vitroTT, which is cheap to prepare, could be a potential vaccine againstS. mansoni.
Hydatidosis in slaughtered sheep and goats in India: prevalence, genotypic characterization and pathological studies
Authors: Moudgil A.D. , Moudgil P. , Asrani R.K. , Agnihotri R.K. 
Published: January 2019

Abstract
The present study determined the prevalence of hydatid cysts in different organs of slaughtered hilly ‘Gaddi’ breed small ruminants—sheep (n = 230) and goats (n = 197)—in Kangra Valley of the north-western Himalayas, India. Hydatid cysts were found in 12.2% (n = 28) of sheep and 10.7% (n = 21) of goats. Pulmonary echinococcosis was more prevalent in slaughtered sheep and goats (sheep 56.36%; goats 62.90%) than hepatic echinococcosis (sheep 43.64%; goats 37.10%). Fertility rates were higher in hepatic (81.25%) and pulmonary cysts of sheep (83.87%) compared to goats. Molecular identification and genotypic characterization of Echinococcus granulosus isolates were based on mitochondrial cytochrome oxidase 1 gene (mtCO1). The genotypic characterization identified the isolated strain to be closely related to the G7 genotype. Histopathological examination revealed a thick coat of granulation tissue, causing fibrosis and inflammatory reaction composed of fibroblasts and mononuclear cells around the cysts. In the liver, hepato-cellular degeneration was prominent at the periphery of the cysts. The present study highlights the molecular confirmation and phylogenetic analysis of E. granulosus isolates with the prevalence of hydatidosis in a naïve host species and in an unexplored region. The findings are of significant medical and veterinary importance regarding development of control measures to check dissemination of hydatidosis.
Analytical Procedure Based on the Matrix Structural Method for the Analysis of the Stiffness of the 2PRU–1PRS Parallel Manipulator
Authors: Herrero Saioa , Pinto Charles , Diez Mikel , Corral Javier 
Published: January 2019

SummaryParallel manipulators, especially those with outputs as one translation and two rotations (1T2R), are being increasingly studied. The kinematic chains of parallel manipulators share the loads and make the stiffness higher than the stiffness of serial manipulators with equivalent limbs. This high stiffness ensures a minimal deformation of the limbs, allowing a high positioning accuracy of the endeffector. Thus, it is very important to be able to measure the stiffness in parallel manipulators. In this work, we present a novel 1T2R multi-axial shaking table (MAST) for automobile pieces testing purposes—the 2PRU–1PRS parallel manipulator—and focus on the analysis of its stiffness all over the useful workspace. Analysis methods based on matrix structural method need to be validated for every parallel manipulator, and we present these steps along with a comparison between experimental and analytical methods.
Laterality of Damage Influences the Relationship Between Impairment and Arm Use After Stroke
Authors: Yadav Goldy , Haaland Kathleen Y. , Mutha Pratik K. 
Published: January 2019

AbstractObjectives:To investigate whether the relationship between arm use and motor impairment post-stroke is influenced by the hemisphere of damage.Methods:Right-handed patients with unilateral left hemisphere damage (LHD) or right (RHD) (n=58; 28 LHD, 30 RHD) were recruited for this study. The Arm Motor Ability Test and Functional Impact Assessment were used to derive arm use patterns. The Fugl-Meyer motor assessment scale was used to quantify the level of motor impairment.Results:A significant interaction between patient group and impairment level was observed for contralesional, but not ipsilesional arm use. For lower impairment levels, contralesional (right arm for LHD and left arm for RHD) arm use was greater in LHD than RHD patients. In contrast, for greater levels of impairment, there were no arm use differences between the two patient groups.Conclusions:When motor impairment is significant, it overrides potential effects of stroke laterality on the patterns of arm use. However, a robust influence of hemisphere of damage on the patterns of arm use is evident at lower impairment levels. This may be attributed to previously described arm preference effects. These findings suggest adoption of distinct strategies for rehabilitation following leftversusright hemisphere damage in right-handers, at least when the impairment is moderate to low. (JINS, 2019,25, 470–478)
Environmental interventions to promote healthier eating and physical activity behaviours in institutions: a systematic review
Authors: Shaw Anneliese M , Wootton Stephen A , Fallowfield Joanne L , Allsopp Adrian J , Parsons Emma L 
Published: January 2019

AbstractObjectiveThe present review evaluated the effectiveness of environmental-based interventions aimed at improving the dietary and physical activity behaviours and body composition indices of adults in institutions.DesignA systematic review was conducted. Electronic databases (MEDLINE, Embase, PsycINFO, CINAHL, The Cochrane Library, Web of Science, ProQuest Dissertation and Theses, Scopus and Athena) were searched for relevant articles published between database inception and October 2017. Searching, selecting and reporting were undertaken according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement.SettingMilitary establishments and maritime workplaces.ParticipantsAdults in institutions, aged 18–45 years.ResultsA total of 27842 articles were screened for eligibility, nine studies (reported in eleven articles) were included in the review. Five studies used multilevel strategies and four used environmental strategies only. Duration of follow-up ranged from 3 weeks to 10 years. Eight of the studies reported significant positive effects on dietary behaviours, but effect sizes varied. The study that targeted physical activity had no effect on activity levels but did have a significant positive effect on physical fitness. No evidence was identified that the studies resulted in improvements in body composition indices.ConclusionsThe evidence base appears to be in favour of implementing environmental interventions in institutions to improve the dietary behaviours of adults. However, due to the small number of studies included in the review, and the variable methodological quality of the studies and intervention reporting, further well-designed evaluation studies are required.
Employment and substitution effects of raising the statutory retirement age in France
Authors: Rabaté Simon , Rochut Julie 
Published: January 2019

AbstractIncreasing the minimum retirement age is a widespread option chosen by policy makers to reduce spending in financially constrained public pension systems. Yet, the effectiveness of such a reform strongly depends on the ability of individuals to postpone their withdrawal from the labor force. In this paper, we study the immediate impact of the 2010 reform of the French pension system by carrying out a short-term evaluation on the increase of the statutory eligibility age from 60 to 61. We use a differences-in-differences methodology, comparing the trajectories from work to retirement for succeeding generations facing a different statutory age. Using a detailed social security administrative database, we provide a global assessment of the effects of the reform, accounting for the potential substitution effects from old-age insurance toward unemployment, sickness or disability insurance schemes. Our findings suggest that despite a sizable effect on the employment rate, the reform also strongly increased unemployment and disability rates.
Caregiver burden and bereavement among family caregivers who lost terminally ill cancer patients
Authors: Tang Yong 
Published: January 2019

AbstractObjectiveFamily caregivers (FCs) in China provide hospice care to terminally ill cancer patients; however, few studies have been conducted in China on caregiver burden and bereavement experiences as a process that continues over time. The purpose of this study was to identify the main elements of caring and bereavement experiences for FCs caring for patients diagnosed with terminal cancer.MethodTwenty in-depth qualitative semistructured interviews were conducted with FCs providing care in a hospice unit in Shenzhen, Southern China. Interview transcripts were analyzed via thematic content analysis.ResultA framework based on the following eight principal themes was developed through content analysis of our FC interviews: symptoms of the illness, the truth-telling process, attitudes toward death, the “color” of death, social and professional support, the moment of death, and grief and loss.Significance of resultsThe analysis showed that caregiving may positively or negatively influence the bereavement process.
The Substantive Representation of Women in Poland
Authors: Gwiazda Anna 
Published: January 2019

AbstractThis article examines the substantive representation of women in Poland after the 2015 parliamentary elections. By looking at the case of the Black Protests, in which tens of thousands of demonstrators, wearing black, defended women's rights by protesting a proposed total abortion ban, it revisits the existing approaches to substantive representation. Hanna Pitkin's definition is used as a starting point, but then broader questions concerning women's interests, agents, and sites of representation are considered. This article identifies a variety of interests but argues that in Poland, conservative interests dominate in parliament, although feminist interests are voiced too, especially by nonelected agents in extraparliamentary sites. This article makes an important contribution to the research on women's political representation because it deals with unexplored aspects of representation in Central and Eastern Europe.