bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fusion estimation for nonlinear multi-sensor networked systems with packet loss compensation and correlated noises
Authors: Zhao Kai , Tan Li-Guo , Song Shen-Min 
Published: July 2019

Purpose
This paper aims to give the centralized and distributed fusion estimator for nonlinear multi-sensor networked systems with packet loss compensation and correlated noises and give the corresponding square-root cubature Kalman filter.

Design/methodology/approach
Based on the Gaussian approximation recursive filter framework, the authors derive the centralized fusion filter and using the projection theorem, the authors derive the centralized fusion smoother. Then, based on the fast batch covariance intersection fusion algorithm, the authors give the corresponding results for distributed fusion estimators.

Findings
Designing the fusion estimators for nonlinear multi-sensor networked systems with packet loss compensation and correlated noises is necessary. It is useful for general nonlinear systems.

Originality/value
Throughout the whole study, the main highlights of this paper are as follows: packet loss compensation and correlated noises are considered in nonlinear multi-sensor networked systems. There are no relevant conclusions in the existing literature; centralized and distributed fusion estimators are derived based on the above system; for the posterior covariance with compensation factor and correlated noises, a new square-root factor of the error covariance is derived; and the new square-root factor of the error covariance is used to replace the numerical implementation of the covariance in cubature Kalman filter (CKF), which simplified the problem in calculating the posterior covariance in CKF.
Leaf traits mediate changes in invertebrate herbivory along broad environmental gradients on Mt. Kilimanjaro, Tanzania
Authors: Njovu Henry K. , Peters Marcell K. , Schellenberger Costa David , Brandl Roland , Kleyer Michael , Steffan‐Dewenter Ingolf 
Published: July 2019

Abstract

Temperature, primary productivity, plant functional traits, and herbivore abundances are considered key predictors of leaf herbivory but their direct and indirect contributions to community‐level herbivory are not well understood along broad climatic gradients.

Here, we determined elevational herbivory patterns and used a path analytical approach to disentangle the direct and indirect effects of climate, land use, net primary productivity (NPP), herbivore abundance, and plant functional traits on community‐level invertebrate herbivory along the extensive elevational and land use gradients at Mt. Kilimanjaro, Tanzania.

We recorded standing leaf herbivory caused by leaf chewers, leaf miners and leaf gallers on 55 study sites distributed in natural and anthropogenic habitats along a 3,060 m elevation gradient. We related the total community‐level herbivory to climate (temperature and precipitation), NPP, plant functional traits (specific leaf area, leaf carbon‐to‐nitrogen [CN] ratio and leaf nitrogen‐to‐phosphorus [NP] ratio) and herbivore abundances.

Leaf herbivory ranged from 5% to 11% along the elevation gradient. Total leaf herbivory showed unimodal pattern in natural habitats but a strongly contrasting bimodal pattern in anthropogenic habitats. We also detected some variation in the patterns of leaf herbivory along environmental gradients across feeding guilds with leaf chewers being responsible for a disproportionally large part of herbivory. Path analyses indicated that the variation in leaf herbivory was mainly driven by changes in leaf CN and NP ratios which were closely linked to changes in NPP in natural habitats. Similarly, patterns of leaf herbivory in anthropogenic habitats were best explained by variation in leaf CN ratios and a negative effect of land use.

Our study elucidates the strong role of leaf nutrient stoichiometry and its linkages to climate and NPP for explaining the variation in leaf herbivory along broad climatic gradients. Furthermore, the study suggests that climatic changes and nutrient inputs in the course of land use change may alter leaf herbivory and consequently energy and nutrient fluxes in terrestrial habitats.
Introducing robotic upper limb training into routine clinical practice for stroke survivors: Perceptions of occupational therapists and physiotherapists
Authors: Flynn Nicholas , Kuys Suzanne , Froude Elspeth , Cooke Deirdre 
Published: July 2019

IntroductionRobot‐assisted therapy for the upper limb (RT‐UL) is an emerging form of intervention for stroke survivors with upper limb deficits. However, there is limited knowledge regarding therapists’ perceptions of RT‐UL and the factors influencing the implementation of RT‐UL into the clinical setting. This is important when considering that therapists in Australia are primarily responsible for the prescription of RT‐UL in daily practice. This study aimed to explore occupational therapists’ and physiotherapists’ perceptions of RT‐UL and the perceived barriers and enablers influencing implementation.MethodsTwo discipline‐specific focus groups were conducted involving occupational therapists (n = 6) and physiotherapists (n = 6). Participants were members of the same multidisciplinary team working in an Australian public health rehabilitation facility where RT‐UL (i.e. InMotion2) was being introduced for the first time. Focus groups explored therapist perceptions of the new RT‐UL as well as perceived barriers and enablers to implementation. Focus groups were recorded, transcribed and deductively analysed using the Theoretical Domains Framework (TDF).ResultsOut of the 14 domains of the TDF, 7 were raised by participants during the focus groups: environmental context and resources, beliefs about consequences, optimism, knowledge, skills, social influences, and social and professional role and identity. Therapists’ expressed their optimism towards the introduction of RT‐UL but believed successful implementation would be primarily dependent on the availability of clinical leadership, training and a suitable client mix.ConclusionTherapists perceived that RT‐UL would provide opportunity for increased upper limb practice particularly for patients with severe upper limb impairment. To facilitate implementation, support of RT‐UL should come from both management and clinical leaders and training include RT‐UL efficacy, device functionality and patient suitability. The availability of a single RT‐UL device in a workplace may create unique interdisciplinary and logistical challenges.
‘Only the dead don't make the future’: Calon lives between non‐Gypsies and death
Authors: Fotta Martin 
Published: July 2019

AbstractThis article argues that the instability of social arrangements, openness in economic strategies, and presentist orientations found among the Calon Gypsies (Ciganos) in Bahia are not to be attributed to uncertainty originating in destabilizations of Calon social life through encompassment and penetration by the dominant Juron (non‐Gypsy) society. It shows instead that Calon cultivate exploitable uncertainty and maintain forward thrust in their lives through a form of self‐discipline sometimes described as ‘making the future’, which distinguishes them from both Jurons and those Calon who have died. This orientation, which highlights the unsettlement of existing arrangements in order to create new opportunities and alter one's position, is inseparable from Calon conceptions regarding generations and gender. It provides a performative background against which Calon can demonstrate attributes of social persons and allows for ‘enchaining’ people through recomposing relationships.
Effect of Heat on the Fluorescence Properties of Tooth‐Colored Restorative Materials and Their Forensic Implications
Authors: Kiran Ramya , Chapman James , Tennant Marc , Forrest Alexander , Walsh Laurence J. 
Published: July 2019

AbstractDuring antemortem and postmortem comparison of dental records of carbonized victims, restorations may be part of such records. The objective of this study was to evaluate the effect of heat on the fluorescence behavior of contemporary tooth‐colored restorative materials and natural tooth structure when subjected to range of temperatures, using illumination with 405 nm wavelength light. A total of 132 human extracted teeth restored with tooth‐colored restorative materials were exposed to heat (200, 500, 900, 1200°C) in an oven for 30 min. Samples were imaged before and after heat treatment. All tooth‐colored restorative materials underwent changes in color and in fluorescence properties, at each of the temperatures used. Resin‐based restorative materials still fluoresced at 200°C, and at 500°C underwent major color changes due to volatilization of resin. Materials containing inorganic fluorophores still fluoresced at 900°C, while at 1200°C, none of the materials tested in this study showed any fluorescence.
Should the clinical significance of supraclavicular and celiac lymph node metastasis in thoracic esophageal cancer be reevaluated?
Authors: Wen Junmiao , Chen Donglai , Zhao Ting , Chen Jiayan , Zhao Yuhuan , Liu Di , Wang Wenjia , Xu Xinyan , Fan Min , Chen Chang , Chen Yongbing 
Published: July 2019

BackgroundLower thoracic esophageal cancer (LTEC) with celiac node metastasis and upper thoracic esophageal cancer (UTEC) with supraclavicular node metastasis were previously categorized as M1a diseases. Our study aimed to investigate whether the clinical significance of supraclavicular and celiac lymph node metastasis should be reevaluated in thoracic esophageal cancer.MethodsA total of 6178 patients with thoracic esophageal cancer were identified from the Surveillance, Epidemiology, and End Results (SEER) database during 2004–2015. Treatment strategies and outcomes (OS, overall survival; CSS, cancer‐specific survival) of patients with different nodal status were reviewed. The Cox proportional hazards regression model was applied to evaluate the prognostic factors. Statistical analyses were performed in all subgroups.ResultsMultivariate analysis identified supraclavicular node metastasis but not celiac node metastasis as an independent predictor of both OS and CSS in LTEC. However, metastasis to supraclavicular or celiac nodes was not an independent predictor of OS and CSS in UTEC. Surgery was not associated with increased OS and CSS for UTEC with celiac or supraclavicular node metastasis but was favored as a predictor of better OS and CSS for LTEC with celiac or supraclavicular node metastasis. Radiotherapy benefited OS and CSS in LTEC involving celiac or supraclavicular nodes and in UTEC involving celiac nodes, while only OS benefited from radiotherapy in UTEC involving supraclavicular nodes.ConclusionsThese results provide preliminary evidence that the clinical significance of supraclavicular and celiac lymph node metastasis should be reevaluated in thoracic esophageal cancer with different prognostic information according to the primary sites.
An empirical assessment of proposed solutions for resolving scale problems in value relevance accounting research
Authors: Aledo Martínez Juana , García Lara Juan Manuel , González Pérez María T. , Grambovas Christos A. 
Published: July 2019

AbstractWe implement the most common empirical specifications, with different approaches to control for scale problems, used in studies on the value relevance of accounting information. We study whether the results offered by these specifications are consistent with the residual income valuation model and with the Burgstahler and Dichev option‐style valuation framework. Undeflated and per‐share specifications offer results that are more in line with both benchmarks. Other deflated specifications and approaches deviate, to different extents, from the expectations of both frameworks. We interpret these deviations as signs of misspecification.
Community of small mammals along an elevational gradient in Biological Reserve of Serra do Japi, municipality of Jundiaí‐SP, Brazil
Authors: Sakane Karina Koibuchi , Percequillo Alexandre Reis , Setz Eleonore Zulnara Freire 
Published: July 2019

AbstractStudies of elevational gradients in forests are particularly interesting for the considerable differences that can be observed over short distances, such as in vegetation and temperature. Different taxonomic groups display varying types of distribution patterns along elevational gradients, with unimodal distribution being recognised as the most common pattern. The distribution of species can be affected by a range of factors that include, biotic, spatial, climatic, historic and energetic. Small mammals represent an ideal model for studies about distribution and habitat use as they can be highly abundant, tend to have different diets and use space differently. The aims of this study are to build a comprehensive understanding of the community of small mammals of the Biological Reserve of Serra do Japi and to explore its distribution pattern along elevational gradients. We investigated the influence of biomass of arthropods, fruits and seeds and percentage of ground cover, canopy cover and vertical vegetation at richness and abundance of small mammals at three different elevations. To accomplish this, we used seventy‐two pitfall traps of 63 L to capture small mammals and distributed them equally across three elevations defined as low (880–899 m), intermediate (1046–1089 m) and high (1170–1189 m). Each elevation had three lines or replicas of traps. Throughout the study, we captured one hundred and fourteen individuals belonging to eleven species of small mammals. The presence of rare and endemic species demonstrates the importance of conservation and maintenance of the Biological Reserve of Serra do Japi. In regard to the distribution of species, despite the short gradient range, we found a unimodal pattern and a positive correlation between ground cover (fallen twigs and branches up to 1 m high) and richness and abundance of small mammals. More ground cover can reduce the effects of competition and predation on small mammals’ communities.Abstract in Portuguese is available with online material.
SIRT1 negatively regulates invasive and angiogenic activities of the extravillous trophoblast
Authors: Lee Ki Mo , Seo Hee Won , Kwon Myoung‐Seung , Han Ae‐Ra , Lee Sung Ki 
Published: July 2019

AbstractProblemDysregulation of extravillous trophoblast (EVT) invasion leads to pregnancy complications, such as pre‐eclampsia, fetal growth restriction, and placenta accreta. The aim of this study was to explore the role of SIRT1 in EVT invasion and its underlying mechanism.Method of studySIRT1‐specific siRNA was transfected into Swan 71 cells, an immortalized first trimester trophoblast cell line. The Boyden chamber invasion assay, the scratch wound healing assay, and cell proliferation assay were performed. The expression levels of epithelial‐to‐mesenchymal transition (EMT) markers, matrix metalloproteinase‐2 (MMP‐2), MMP‐9, p‐Akt, Akt, p‐p38MAPK, p38MAPK, p‐ERK, ERK, p‐JNK, JNK, Fas, and Fas ligand (FasL) were examined by western blot. Tube formation assay was conducted by using Matrigel.ResultsSIRT1 knockdown by siRNA significantly enhanced invasion and migration as well as the expression of MMP‐2, MMP‐9, and EMT markers in Swan 71 cells, but reduced proliferation. The effects of SIRT1 knockdown on invasion, migration, proliferation, and endothelial‐like tube formation in Swan 71 cells were reversely regulated by blockade of Akt and p38MAPK signaling. In addition, SIRT1 knockdown markedly promoted colocalization of Swan 71 cells to human umbilical vein endothelial cell (HUVEC) networks and induced reduction in Fas and enhancement of FasL. Conditioned media of SIRT1 knockdown‐Swan 71 cells caused reduction in cell proliferation and augmentation of cytotoxicity along with increased Fas expression in HUVECs.ConclusionOur results suggest that SIRT1 may be associated with placental development by controlling EVT invasion and spiral artery remodeling via modulation of EMT, MMP‐2, MMP‐9, Akt/p38MAPK signaling, and Fas/FasL.
Cross‐sectional associations between healthy eating index and sex steroid hormones in men—National Health and Nutrition Examination Survey 1999–2002
Authors: Chen Z. , Pestoni G. , McGlynn K. A. , Platz E. A. , Rohrmann S. 
Published: July 2019

AbstractBackgroundDiet plays an important role in health and is a modifiable risk factor for chronic diseases. In men, sex steroid hormones influence, and are influenced by, a number of health states. Specific dietary patterns have been found to alter sex steroid hormone levels in observational and intervention studies. Thus, we hypothesized that dietary patterns captured by the Healthy Eating Index (HEI) are associated with serum concentrations of sex steroid hormones and sex hormone‐binding globulin (SHBG).ObjectivesThe objective is investigating the association between HEI and sex steroid hormones and SHBG in a general US population of men.MethodsWe used data on serum sex steroid hormones and SHBG levels, HEI, and other variables collected in the National Health and Nutrition Examination Survey (NHANES), 1999–2002. A total of 550 men >20 years old were included in the analysis. The cross‐sectional associations between HEI (from 0 to 100 points, higher score equates to a healthier diet) with natural logarithm transformed concentrations of total and free testosterone, total and free estradiol, and SHBG were evaluated with multivariable linear regression models and adjusted for potential confounders. We also stratified by the body mass index (BMI) and race/ethnicity and tested for interactions.ResultsHEI showed a significant inverse association with free estradiol (p = 0.03), but was not associated with total or free testosterone, total estradiol, or SHBG concentrations. Neither BMI nor race/ethnicity statistically significantly modified the association between HEI and sex steroid hormone levels.ConclusionThe present cross‐sectional analysis in a representative sample of US men showed no consistent association between eating habits, sex steroid hormones, and SHBG. Longitudinal studies are needed to further investigate potential associations.
Is anticoagulation for venous thromboembolism safe for Asian elective neurosurgical patients? A single centre study
Authors: Cheang Mun Yoong , Yeo Tseng Tsai , Chou Ning , Lwin Sein , Ng Zhi Xu 
Published: July 2019

BackgroundThe incidence of venous thromboembolism (VTE) in neurosurgical patients ranges 3–24%. VTE is potentially fatal, and prophylactic anticoagulation is recommended worldwide. However, anticoagulation poses a risk of haemorrhage, which can be devastating. We aim to determine the incidence of VTE and risk of haemorrhage following anticoagulation.MethodsBetween 1 May 2014 and 1 May 2016, all patients who underwent elective neurosurgery were recruited into our study. All patients had bilateral lower limb ultrasound to screen for deep vein thrombosis (DVT) between post‐operative days 3 and 7. These patients are also monitored for manifestations of pulmonary embolism (PE). If present, a computed tomography pulmonary angiogram will be performed. Patients with VTE will either receive conservative treatment or anticoagulation.ResultsDuring this period, 170 of 610 patients were included. Of the 170 patients, 17 patients (10.0%) developed DVT. Fifteen patients had cranial surgery and two patients had spinal surgery. Two patients (1.2%) developed PE and both patients had concurrent DVT. Of these 17 patients, nine patients received anticoagulation. Of these nine patients, six patients (66.7%) developed surgical site bleeding following anticoagulation and all of them required surgical intervention. Patients who were managed conservatively did not suffer haemorrhage.ConclusionOur results show an overall 10.0% incidence of DVT and 1.2% incidence of PE following elective neurosurgery within this Asian cohort of neurosurgical patients. There is also a high risk (66.7%) of significant surgical site bleeding following anticoagulation.
Job Crafting via Decreasing Hindrance Demands: The Motivating Role of Interdependence Misfit and the Facilitating Role of Autonomy
Authors: Dust Scott B. , Tims Maria 
Published: July 2019

Job crafting theory suggests that misalignment between an employee’s preferred and actual amount of job characteristics acts as a motivational trigger for job crafting. We test this unexplored, yet key proposition underlying job crafting theory. To do so, however, we take a more comprehensive misfit perspective than previously applied, evaluating person‐job undersupply and oversupply. We propose that task interdependence misfit motivates a reductive form of job crafting, decreasing hindrance demands. We also propose that low autonomy mitigates the misfit to decreasing hindrance demands relationship. To empirically evaluate this direction, we employ moderated polynomial regression and response surface analysis. Study 1 (N = 159 English‐speaking respondents) findings suggest that task interdependence misfit (both undersupply and oversupply) is positively related to decreasing hindrance demands. Study 2 (N = 363 Dutch‐speaking respondents) findings replicate and support our misfit hypothesis. Further, as expected, low levels of autonomy neutralize the relationship between task interdependence misfit and decreasing hindrance demands. Theoretical and practical implications regarding the misfit‐as‐motivation hypothesis, and the simultaneous investigation of job crafting facilitators (i.e., autonomy) and motivators (i.e., misfit) are discussed.
Academic performance and peer relations among rural‐to‐urban migrant children in Beijing: Do social identity and self‐efficacy matter?
Authors: Wang Yixuan , Pei Fei , Zhai Fuhua , Gao Qin 
Published: July 2019

AbstractDue to the household registration system, millions of rural‐to‐urban migrant children in China are ineligible to receive urban social welfare benefits. These children potentially suffer from the evolving awareness of their perceived inferior social identity and experiences of inequalities at an early stage of life. This study examined whether self‐perceived social identity is related to academic performance and peer relations among rural‐to‐urban migrant children in Beijing. Data were collected from 136 children during 2013 and 2014 in three schools for migrant children in Beijing. Path analysis showed that children who identified as a Beijinger, compared with those who self‐identified with their rural hometown, had better self‐efficacy, which in turn was associated with better academic performance and better peer relations. Enlightened by Western theories, these findings suggest that migrant children’s performance in school could be enhanced by cultivating positive perceptions of their social identity through teachers’ practice and community‐ and policy‐level social support.