bluuebunny/crossref_metadata_2025_split huggingface dataset:
Population assessment and foraging ecology of nest aggregations of the rare solitary bee, Eucera longicornis at Gatwick Airport, and implications for their management
Authors: Hennessy Georgia , Goulson Dave , Ratnieks Francis L. W. 
Published: August 2020

AbstractEucera longicornis is a rare solitary bee that is in decline throughout its range in Britain and other European countries. Two nest aggregations that had been previously discovered in 2014 on land owned and managed by Gatwick Airport, Southern England, were studied in 2017, 2018 and 2019 to obtain information relevant to their conservation. Population estimates using mark recapture showed that the larger aggregation had a maximum population estimate of 659 individuals in 2018, with the smaller aggregation reaching a maximum population estimate of 221 in 2019. In terms of foraging requirements, microscopic analysis of pollen samples from females returning from their nests identified a total of 12 plant taxa across all years and both aggregations. Fabaceae pollen was present in 100% of samples and on average comprised 90% of each sample, indicating that the species is oligolectic. Both nest aggregations were on sloping banks of exposed soil arising from land management by the airport in 1999. Floral surveys of the landscape indicate that within 100 m of both aggregations Fabaceae species are the most abundant due to the presence of a legume rich wildflower meadow alongside the adjacent river Mole, which was sown by Gatwick Airport. Eucera longicornis at Gatwick Airport are an example of how if managed appropriately, industrial areas can provide valuable refuges for rare wildlife. Although there is no imminent risk of the populations going extinct, management and monitoring suggestions are provided to ensure these populations persist.
Linear woody landscape elements may help to mitigate leaf surface loss caused by the cereal leaf beetle
Authors: Lajos Károly , Császár Orsolya , Sárospataki Miklós , Samu Ferenc , Tóth Ferenc 
Published: August 2020

Abstract
Context
Woody semi-natural habitats serve as permanent habitats and hibernation sites for natural enemies and, through spillover processes, they play an important role in the biological control of insect pests. However, this service is also dependent on the amount and configuration of the dominating woody habitat types: linear landscape elements (hedgerows, shelterbelts), and more evenly extended plantations. Relating natural enemy action to the landscape context can help to identify the effect of woody habitats on biological control effectiveness.

Objectives
In the Central European agricultural landscapes such as in the Hungarian lowlands, where our study took place, woody linear elements are characterised by high, while woody areal elements, mostly plantations, by low biological and structural diversity. In this study, we aimed to determine which composition and configuration of woody linear and areal habitats in the landscape may enhance the effect of natural enemy action on plant damage caused by the cereal leaf beetle (CLB, Oulema melanopus).

Methods
Herbivory suppression by natural enemies was assessed from the leaf damage difference between caged and open treatments. These exclusion experiments were carried out in 34 wheat fields on plants with controlled CLB infections. The results were related to landscape structure, quantified by different landscape metrics of both woody linear and areal habitats inside buffers between 150 and 500 m radii, surrounding the wheat fields.

Results
The exclusion of natural enemies increased the leaf surface loss caused by CLBs in all fields. Shelterbelts and hedgerows in 150–200 m vicinity of the wheat fields had a strong suppressing effect on CLB damage, while the presence of plantations at 250 m and further rather impeded natural enemy action.

Conclusions
Our results indicate that shelterbelts and hedgerows may provide a strong spillover of natural enemies, thus contribute to an enhanced biological control of CLBs.
Gait recognition for person re-identification
Authors: Elharrouss Omar , Almaadeed Noor , Al-Maadeed Somaya , Bouridane Ahmed 
Published: August 2020

AbstractPerson re-identification across multiple cameras is an essential task in computer vision applications, particularly tracking the same person in different scenes. Gait recognition, which is the recognition based on the walking style, is mostly used for this purpose due to that human gait has unique characteristics that allow recognizing a person from a distance. However, human recognition via gait technique could be limited with the position of captured images or videos. Hence, this paper proposes a gait recognition approach for person re-identification. The proposed approach starts with estimating the angle of the gait first, and this is then followed with the recognition process, which is performed using convolutional neural networks. Herein, multitask convolutional neural network models and extracted gait energy images (GEIs) are used to estimate the angle and recognize the gait. GEIs are extracted by first detecting the moving objects, using background subtraction techniques. Training and testing phases are applied to the following three recognized datasets: CASIA-(B), OU-ISIR, and OU-MVLP. The proposed method is evaluated for background modeling using the Scene Background Modeling and Initialization (SBI) dataset. The proposed gait recognition method showed an accuracy of more than 98% for almost all datasets. Results of the proposed approach showed higher accuracy compared to obtained results of other methods result for CASIA-(B) and OU-MVLP and form the best results for the OU-ISIR dataset.
Surface Properties and Corrosion Behavior of Turn-Assisted Deep-Cold-Rolled AISI 4140 Steel
Authors: Prabhu P. R. , Prabhu Deepa , Sharma Sathyashankara , Kulkarni S. M. 
Published: August 2020

AbstractIn this research, the effect of various turn-assisted deep-cold-rolling process parameters on the residual stress, microstructure, surface hardness, surface finish, and corrosion behavior of AISI 4140 steel has been investigated. The examination of the surface morphology of the turned and processed samples was performed by using a scanning electron microscope, energy-dispersive spectroscopy, and atomic force microscopy. Response surface methodology and desirability function approach were used for reducing the number of experiments and finding local optimized conditions for parameters under the study. The results from the residual stress measurements indicate that the rolling force has the highest effect by generating a deeper layer of residual compressive stress. The outcomes of surface hardness and surface finish emphasize that rolling force and number of tool passes are the most significant parameters affecting the responses. Surface studies confirmed the corrosion and its intensity onto the metal surface, and according to atomic force microscopy studies, the surface had become remarkably rough after exposure to the corrosive medium. Improvements in surface microhardness from 225 to 305.8 HV, the surface finish from 4.84 down to 0.261 μm, and corrosion rate from 6.672 down to 3.516 mpy are observed for a specific set of parameters by turn-assisted deep-cold-rolling process. The multiresponse optimization for surface finish and corrosion rate together shows that a ball diameter of 10 mm, a rolling force of 325.75 N, initial roughness of 4.84 µm, and number of tool passes of 3 give better values for the two responses under consideration with composite desirability of 0.9939. Based on the experimental work at the optimum parameter setting, the absolute average error between the experimental and predicted values for the corrosion rate is calculated as 3.2%.
Non-local to local transition for ground states of fractional Schrödinger equations on $$\mathbb {R}^N$$
Authors: Bieganowski Bartosz , Secchi Simone 
Published: August 2020

AbstractWe consider the nonlinear fractional problem $$\begin{aligned} (-\Delta )^{s} u + V(x) u = f(x,u)&\quad \hbox {in } \mathbb {R}^N \end{aligned}$$

(
-
Δ
)

s

u
+
V

(
x
)

u
=
f

(
x
,
u
)

in

R

N

We show that ground state solutions converge (along a subsequence) in $$L^2_{\mathrm {loc}} (\mathbb {R}^N)$$

L
loc
2

(

R

N

)

, under suitable conditions on f and V, to a ground state solution of the local problem as $$s \rightarrow 1^-$$

s
→

1
-

.
Incidence, Severity and Responses to Reportable Student Self-Harm and Suicidal Behaviours in Schools: A One-Year Population-Based Study
Authors: Crowe Ruby , Townsend Michelle L. , Miller Caitlin E. , Grenyer Brin F. S. 
Published: August 2020

AbstractSchool staff have a unique opportunity to detect and respond to mental health issues including self-harm and suicidal behaviour in adolescents. There is limited knowledge about how these incidents are managed in schools. This study aims to understand the incidence rates, perceived severity and management of self-harm and suicidal behaviour incidents by schools. A total of 1525 school incidents were analysed for rate, severity and response. Pearson’s χ2 test was used to understand incident rates of self-harm and suicidal behaviours compared to all other incidents, and if incident category was related to emergency service involvement. A Kruskal–Wallis ANOVA analysed differences in severity ratings for incidents, and relative risk ratios determined the probability that first responder services will be engaged in self-harm and suicidal behaviour incidents. Self-harm and suicidal behaviour incidents (n = 77) accounted for 5.05% of all incidents and were more likely to be rated highly severe compared to other incidents. Incidents of self-harm and suicidal behaviours were 1.43 times more likely to have police involvement and 8.37 times more likely to have ambulance involvement compared to other incidents that caused harm to students, staff or property including welfare and violence incidents. The findings highlight the severity of reportable self-harm and suicidal behaviour incidents as they required an emergency response. We discuss the potential missed opportunity for early intervention by school staff and services, which may hinder future disclosure or help-seeking by at-risk young people. Training of school staff may provide knowledge and confidence to respond appropriately to self-harm and suicidal behaviour incidents and prevent escalation requiring emergency intervention.
Analysis of the Behaviour of Very Slender Piles: Focus on the Ultimate Load
Authors: Gatto Michele Placido Antonio , Montrasio Lorella 
Published: August 2020

AbstractThe paper aims to analyse the influence of slenderness on the ultimate behaviour of piles with a very small diameter (less than 10 cm) that are often employed in soil reinforcement and for which the slenderness can significatively influence the failure behaviour, reducing the ultimate load. The aim is reached by means of numerical analyses on small-diameter piles of different geometries, embedded in clayey soil. The critical load is evaluated numerically in undrained conditions and then compared to the bearing capacity estimated by the classical approaches based on limit equilibrium method. The numerical model is first calibrated on the basis of the results of experimental laboratory tests on bored piles of a small diameter in a cohesive soft soil (average undrained shear strength cu = 15 kPa). The comparison between the critical load and the bearing capacity shows that their ratio becomes less than 1 for critical slenderness LCR that decreases, nonlinearly, with the decreasing of the pile diameter. The results of the analysis show that varying the diameter of the pile from 0.06 to 0.18 m, LCR varies from 65 to 200. The aforementioned evidence suggests that the evaluation of the ultimate load of piles of very small diameter has to follow the considerations on the critical load of the pile, especially if it is embedded in soft soil; on the contrary for piles of greater diameters (bigger than 20 cm) the buckling is not meaningful because LCR is so big that the common slenderness does not exceed it.
The psychological, relational and social impact in adult offspring of
parents with hoarding disorder
Authors: Neziroglu Fugen , Upston Michael , Khemlani-Patel Sony 
Published: August 2020

Abstract
Hoarding disorder (HD) is a psychiatric condition that negatively
impacts individual sufferers, their families and the larger community. The
disorder goes beyond problems with excessive clutter; it also presents with
deficits in executive functioning, attachment and affect regulation
deficits. This paper focusses on the needs of adult children of parents with
HD, who directly experience the consequences of the disorder throughout
their life cycle. We explore the existing research on the psychological,
relational and social impact of parental hoarding on adult offspring. We
discuss the clinical implications of these findings and offer possible
psychological interventions that may be of help in this vulnerable
population.
The impact of a bundle to prevent hospital-acquired pneumonia in a cohort of nonventilated patients on enteral nutrition
Authors: de Assis Michelli Cristina Silva , Macedo Andreia Barcellos Teixeira , Martins Célia Mariana Barbosa de Souza , Konkewicz Loriane Rita , Viana Luciana Verçoza , Tavares Juliana Petri , Mancuso Aline Castello Branco , da Rosa Ninon Girardon , Santos Rodrigo Pires dos 
Published: August 2020

AbstractWe conducted a quasi-experimental study to evaluate a bundle to prevent nonventilator hospital-acquired pneumonia (NV-HAP) in patients on enteral tube feeding. After the intervention, there was an increase in bundle compliance from 55.9% to 70.5% (P < .01) and a significant decrease (34%) in overall NV-HAP rates from 5.71 to 3.77 of 1,000 admissions.
The failure of mainstream parties and the impact of new challenger parties in France, Italy and Spain
Authors: Ignazi Piero 
Published: August 2020

AbstractPolitical parties share a very bad reputation in most European countries. This paper provides an interpretation of this sentiment, reconstructing the downfall of the esteem in which parties were held and their fall since the post-war years up to present. In particular, the paper focuses on the abandonment of the parties' founding ‘logic of appropriateness’ based, on the one hand, on the ethics for collective engagement in collective environments for collective aims and, on the other hand, on the full commitment of party officials. The abandonment of these two aspects has led to a crisis of legitimacy that mainstream parties have tried to counteract in ways that have proven ineffective, as membership still declines and confidence still languishes. Finally, the paper investigates whether the new challenger parties in France, Italy and Spain have introduced organizational and behavioural changes that could eventually reverse disaffection with the political partyper se.
Race, Place, and Context: The Persistence of Race Effects in Traffic Stop Outcomes in the Face of Situational, Demographic, and Political Controls
Authors: Shoub Kelsey , Epp Derek A. , Baumgartner Frank R. , Christiani Leah , Roach Kevin 
Published: August 2020

AbstractEvidence that racial minorities are targeted for searches during police traffic stops is widespread, but observed differences in outcomes following a traffic stop between white drivers and people of color could potentially be due to factors correlated with driver race. Using a unique dataset recording over 5 million traffic stops from 90 municipal police departments, we control for and evaluate alternative explanations for why a driver may be searched. These include: (1) the context of the stop itself, (2) the characteristics of the police department including the race of the police chief, and (3) demographic and racial composition of the municipality within which the stop occurs. We find that the driver's race remains a robust predictor: black male drivers are consistently subjected to more intensive police scrutiny than white drivers. Additionally, we find that all drivers are less likely to be subject to highly discretionary searches if the police chief is black. Together, these findings indicate that race matters in multiple and varied ways for policing outcomes.
Managing Displaced Populations: The Friedland Transit Camp, Refugees, and Resettlement in Cold War Germany
Authors: Holmgren Derek 
Published: August 2020

ABSTRACTThis article examines the resettlement of displaced populations in both postwar German states from 1945 to 1955. Specifically, it investigates who were the displaced populations circulating between the occupation zones, and what methods the German civil governments and occupying military authorities used to aid and resettle them. Through a case study of the Friedland refugee transit camp, this article argues for an expansive understanding of the term “refugee” to include more groups, ranging from Displaced Persons and German expellees to returning prisoners of war and civil internees. It further contends that transit camps were the linchpin in a system to render humanitarian aid, bring refugee movement under state control, and resettle the displaced. Analysis of camp operations and resident populations reveals the state as humanitarian actor in addition to international and charitable organizations, while also complicating the Cold War mythology of Friedland as the “Gateway to Freedom.”
Enjoying flow in primary school music making: does family musical practice matter?
Authors: Valenzuela Rafael , Codina Nuria , Vicente Pestana José 
Published: August 2020

AbstractGiven the differences in continuing musical after primary school, this study works with the idea that the development of music-making habits requires flow, which, in turn, depends on family musical practice. Flow is the state of mind of immersion in an intrinsically rewarding activity, which represents an optimal challenge fostering persistence and skill growth. Based on 164 students (82 girls) from six schools in Catalonia, we compared flow in primary school musical practice between students with high and low levels of family musical practice, concluding that family context should be considered in adapting musical activities to students’ previous experiences.
Effects of dexamethasone on growth, viability and ultrastructure of bovine secondary follicles cultured in vitro
Authors: Barroso P.A.A. , Paulino L. R F.M. , Silva B.R. , Vasconcelos G.L. , Gomes D.S. , Lima Neto M.F. , Silva A.W.B. , Souza A.L.P. , Donato M.A.M. , Peixoto C.A. , Silva J.R.V. 
Published: August 2020

SummaryThis study aimed to evaluate the effects of dexamethasone on development, viability, antrum formation and ultrastructural integrity of bovine secondary follicles cultured in vitro for 18 days. Bovine ovaries were obtained from slaughterhouses and secondary follicles of ~150–200 µm diameter were isolated and cultured in the laboratory in TCM-199+ alone or supplemented with different concentrations of dexamethasone (1, 10, 100 and 1000 ng/ml). Follicle viability was evaluated after the culture period, using calcein-AM (viable) and ethidium homodimer (nonviable). Follicle diameters and antrum formation were evaluated at days 0, 6, 12 and 18. Before or after in vitro culture, follicles were fixed for histological and ultrastructural analysis. Follicle diameters were evaluated using analysis of variance and Kruskal–Wallis test, while chi-squared test was used to evaluate the percentage of viable follicles and antrum formation (P < 0.05). Follicles cultured for 6 days with all treatments increased their diameters significantly, but there was no significant difference between treatments at the end of the culture period. In vitro cultured follicles showed antral cavity formation at the end of the culture period, but no influence of dexamethasone was seen. Ultrastructural analysis showed that follicles cultured with dexamethasone (1, 10, 100 and 1000 ng/ml) had well preserved granulosa cells. However, oocytes from follicles cultured with 10, 100 or 1000 ng/ml dexamethasone showed signs of degeneration. It can be concluded that follicles cultured in vitro in the presence of dexamethasone demonstrated continuous in vitro growth, but oocytes from follicles cultured with 10, 100 or 1000 ng/ml dexamethasone had poor ultrastructure.
Event Trees and Epistemic Uncertainty in Long‐Term Volcanic Hazard Assessment of Rift Volcanoes: The Example of Aluto (Central Ethiopia)
Authors: Tierz P. , Clarke B. , Calder E. S. , Dessalegn F. , Lewi E. , Yirgu G. , Fontijn K. , Crummy J. M. , Bekele Y. , Loughlin S. C. 
Published: August 2020

AbstractAluto is a peralkaline rhyolitic caldera located in a highly populated area in central Ethiopia. Its postcaldera eruptive activity has mainly consisted of self‐similar, pumice‐cone‐building eruptions of varying size and vent location. These eruptions are explosive, generating hazardous phenomena that could impact proximal to distal areas from the vent. Volcanic hazard assessments in Ethiopia and the East African Rift are still limited in number. In this study, we develop an event tree model for Aluto volcano. The event tree is doubly useful: It facilitates the design of a conceptual model for the volcano and provides a framework to quantify volcanic hazard. We combine volcanological data from past and recent research at Aluto, and from a tool to objectively derive analog volcanoes (VOLCANS), to parameterize the event tree, including estimates of the substantial epistemic uncertainty. Results indicate that the probability of a silicic eruption in the next 50 years is highly uncertain, ranging from 2% to 35%. This epistemic uncertainty has a critical influence on event‐tree estimates for other volcanic events, like the probability of occurrence of pyroclastic density currents (PDCs) in the next 50 years. The 90% credible interval for the latter is 5–16%, considering only the epistemic uncertainty in conditional eruption size and PDC occurrence, but 2–23% when adding the epistemic uncertainty in the probability of eruption in 50 years. Despite some anticipated challenges, we envisage that our event tree could be translated to other rift volcanoes, making it an important tool to quantify volcanic hazard in Ethiopia and elsewhere.
A hierarchically ordered compacted coil scaffold for tissue regeneration
Authors: Su Yingchun , Zhang Zhongyang , Wan Yilin , Zhang Yifan , Wang Zegao , Klausen Lasse Hyldgaard , Huang Peng , Dong Mingdong , Han Xiaojun , Cui Bianxiao , Chen Menglin 
Published: August 2020

AbstractHierarchically ordered scaffold has a great impact on cell patterning and tissue engineering. The introduction of controllable coils into a scaffold offers an additional unique structural feature compared to conventional linear patterned scaffolds and can greatly increase interior complexity and versatility. In this work, 3D coil compacted scaffolds with hierarchically ordered patterns and tunable coil densities created using speed-programmed melt electrospinning writing (sMEW) successfully led to in vitro cell growth in patterns with tunable cell density. Subcutaneous implantation in mice showed great in vivo biocompatibility, as evidenced by no significant increase in tumor necrosis factor α (TNF-α) and interleukin 6 (IL-6) levels in mouse serum. In addition, a lumbar vertebra was successfully printed for mesenchymal stem cells to grow in the desired pattern. A long-range patterned matrix composed of programmable short-range compacted coils enabled the design of complex structures, e.g., for tailored implants, by readily depositing short-range coil-compacted secondary architectures along with customized primary design.