bluuebunny/crossref_metadata_2025_split huggingface dataset:
Testing UAV-derived topography for hydraulic modelling in a tropical environment
Authors: Mazzoleni M. , Paron P. , Reali A. , Juizo D. , Manane J. , Brandimarte L. 
Published: May 2020

AbstractThe past few years have seen the raise of unmanned aerial vehicles (UAV) in geosciences for generating highly accurate digital elevation models (DEM) at low costs, which promises to be an interesting alternative to satellite data for small river basins. The reliability of UAV-derived topography as input to hydraulic modelling is still under investigation: here, we analyse potentialities and highlight challenges of employing UAV-derived topography in hydraulic modelling in a tropical environment, where weather conditions and remoteness of the study area might affect the quality of the retrieved data. We focused on a stretch of the Limpopo River in Mozambique, where detailed ground survey and airborne data were available. First, we tested and compared topographic data derived by UAV (25 cm), RTK-GPS (50 cm DEM), LiDAR (1 m DEM) and SRTM (30 m DEM); then, we used each DEM as input data to a hydraulic model and compared the performance of each DEM-based model against the LiDAR based model, currently used as benchmark by practitioners in the area. Despite the challenges experienced during the field campaign—and described here—, the degree of accuracy in terrain modelling produced errors in water depth calculations within the tolerances adopted in this typology of studies and comparable in magnitude to the ones obtained from high-precision topography models. This suggests that UAV is a promising source of geometric data even in natural environments with extreme weather conditions.
“Truly free consent”? Clarifying the nature of police legitimacy using causal mediation analysis
Authors: Pósch Krisztián , Jackson Jonathan , Bradford Ben , Macqueen Sarah 
Published: May 2020

Abstract
Objectives
To test whether normative and non-normative forms of obligation to obey the police are empirically distinct and to assess whether they exhibit different dynamics in terms of the downstream effects of police-citizen contact.

Methods
Analysing data from the Scottish Community Engagement Trial of procedurally just policing, we use natural effect modelling for causally ordered mediators to assess causal pathways that include—but also extend beyond—the experimental treatment to procedural justice.

Results
Normative and non-normative forms of obligation are empirically distinct. Normative obligation to obey the police is sensitive to procedurally just or unjust police behaviour, and influences cooperation with the police and traffic law compliance in a way that is consistent with procedural justice theory. Non-normative obligation to obey the police is ‘sticky’ and unresponsive.

Conclusions
Legitimacy can resonably be defined partly as normative obligation with its expected beneficial downstream effects, so long as it is measured properly.
Three-dimensional guidance including shape sensing of a stentgraft system for endovascular aneurysm repair
Authors: Jäckle Sonja , García-Vázquez Verónica , Eixmann Tim , Matysiak Florian , von Haxthausen Felix , Sieren Malte Maria , Schulz-Hildebrandt Hinnerk , Hüttmann Gereon , Ernst Floris , Kleemann Markus , Pätz Torben 
Published: May 2020

Abstract
Purpose
During endovascular aneurysm repair (EVAR) procedures, medical instruments are guided with two-dimensional (2D) fluoroscopy and conventional digital subtraction angiography. However, this requires X-ray exposure and contrast agent is used, and the depth information is missing. To overcome these drawbacks, a three-dimensional (3D) guidance approach based on tracking systems is introduced and evaluated.

Methods
A multicore fiber with fiber Bragg gratings for shape sensing and three electromagnetic (EM) sensors for locating the shape were integrated into a stentgraft system. A model for obtaining the located shape of the first 38 cm of the stentgraft system with two EM sensors is introduced and compared with a method based on three EM sensors. Both methods were evaluated with a vessel phantom containing a 3D-printed vessel made of silicone and agar-agar simulating the surrounding tissue.

Results
The evaluation of the guidance methods resulted in average errors from 1.35 to 2.43 mm and maximum errors from 3.04 to 6.30 mm using three EM sensors, and average errors from 1.57 to 2.64 mm and maximum errors from 2.79 to 6.27 mm using two EM sensors. Moreover, the videos made from the continuous measurements showed that a real-time guidance is possible with both approaches.

Conclusion
The results showed that an accurate real-time guidance with two and three EM sensors is possible and that two EM sensors are already sufficient. Thus, the introduced 3D guidance method is promising to use it as navigation tool in EVAR procedures. Future work will focus on developing a method with less EM sensors and a detailed latency evaluation of the guidance method.
‘Better off, as judged by themselves’: do people support nudges as a method to change their own behavior?
Authors: GOLD NATALIE , LIN YILING , ASHCROFT RICHARD , OSMAN MAGDA 
Published: May 2020

AbstractIn this study, we investigated how people evaluate behavioral interventions (BIs) that are targeted at themselves, aiming to promote their own health and wellbeing. We compared the impact on people's assessments of the acceptability of using BIs to change their own behavior of: the transparency of the BI (transparent or opaque); the designer of the BI (researchers, government policy-makers, advertisers); and three types of arguments regarding their efficacy (positive, positive + negative, negative). Our target BIs were actual interventions that have been used in a range of policy domains (diet, exercise, alcohol consumption, smoking, personal finances). We found that transparent BIs were considered more acceptable than opaque BIs. On average, all BIs were considered acceptable for changing participants’ own behavior, except for the opaque BI in the finance context; there was differential acceptability of BIs across contexts, with finance clearly least acceptable. However, the perceived effectiveness of the BIs was at least as influential a predictor of acceptability ratings as the ease of identification of the behavior change mechanism across the five contexts. Furthermore, effectiveness was partially mediated by desire to change, suggesting that people do think BIs make them better off, ‘as judged by themselves’.
Learning from a Peace Process: Theory, Practice and the Case of Northern Ireland
Authors: Mitchell David 
Published: May 2020

AbstractThe goal of ‘learning’ from peace processes is widely expressed in conflict resolution scholarship and practice but inadequately understood. This article investigates what kinds of knowledge can be learned from a peace process, the theoretical and methodological bases of such learning, and what impact it may have. The article begins with an interdisciplinary discussion of reasons to learn, the kinds of lessons proposed in the peace process literature and how theories of learning may be applied to a peace process. Following this is a case study of the sharing of the Northern Ireland peacemaking experience with other conflict-affected societies, especially through facilitated dialogues between decision-makers. This contributes to a comprehensive ideal model of learning from peace processes – something which, it is argued, may result in ‘transformative learning’ and a ‘policy paradigm shift’ towards de-escalatory conflict management. A definition of a peace process ‘lesson’ is offered to guide future research.
Optimization Analysis of Stratospheric Airship Suspended Curtains
Authors: Xie Wei cheng , Wang Xiao liang , Duan Deng ping , Tang Ji wei 
Published: May 2020

ABSTRACTThere has been considerable interest in stratospheric airships as a cost-effective alternative to earth orbit satellites for sightseeing, aerial photography, communication and carrying weapons, etc. Many countries have plans to develop the airship owing to its greatly expected usage. The suspended curtain plays a vital role in force transmission in stratospheric airships but lacks attention. In this paper, the relationship between the optimal shape of suspended curtain and load conditions was studied through CAE Abaqus and Isight. Firstly, by using secondary development function of Abaqus, parametric FEA models of suspended curtains and envelopes have been established, several parameters were used to describe the shape of suspended curtains. Secondly, parameters of the suspended curtain shape were optimized under different loading conditions by means of the genetic algorithm. Lastly, through the analysis of the results, some conclusions are summarized: The relationship between n1(n2) and nb was found to be linear when the suspended curtain is subjected to vertical load. The stress transfer law of suspended curtain and inflatable membrane structure under the inclined load were also obtained, which are valuable for the structural engineering design of stratospheric airships..
Anti-HIV drugs promote β-amyloid deposition and impair learning and memory in BALB/c mice
Authors: Zulu S.S. , Abboussi O. , Simola N. , Mabandla M.V. , Daniels W.M.U. 
Published: May 2020

AbstractObjectives:Growing evidence suggested that antiretroviral (ARV) drugs may promote amyloid beta (Aβ) accumulation in HIV-1-infected brain and the persistence of HIV-associated neurocognitive disorders (HANDs). It has also been shown that lipid peroxidation upregulates β-site amyloid precursor protein (APP) cleaving enzyme 1 (BACE1) expression and subsequently promotes Aβ peptide production. In the present study, we examined whether chronic exposure to the anti-HIV drugs tenofovir disoproxil fumarate (TDF) and nevirapine induces lipid peroxidation thereby promoting BACE1 and Aβ generation and consequently impair cognitive function in mice.Methods:TDF or nevirapine was orally administered to female BALB/c mice once a day for 8 weeks. On the 7th week of treatment, spatial learning and memory were assessed using the Morris water maze test. The levels of lipid peroxidation, BACE1, amyloid β 1-42 (Aβ1-42) and Aβ deposits were measured in the hippocampal tissue upon completion of treatment.Results:Chronic administration of nevirapine induced spatial learning and memory impairment in the Morris water maze test, whereas TDF did not have an effect. TDF and nevirapine administration increased hippocampal lipid peroxidation and Aβ1-42 concentration. Nevirapine further upregulated BACE1 expression and Aβ deposits.Conclusion:Our results suggest that chronic exposure to TDF and nevirapine contributes to hippocampal lipid peroxidation and Aβ accumulation, respectively, as well as spatial learning and memory deficits in mice even in the absence of HIV infection. These findings further support a possible link between ARV drug toxicity, Aβ accumulation and the persistence of HANDs.
Introducing a sinusoidal equation to describe lactation curves for cumulative milk yield and composition in Holstein cows
Authors: Ghavi Hossein-Zadeh Navid , Darmani Kuhi Hassan , France James , López Secundino 
Published: May 2020

AbstractThe aim of the work reported here was to investigate the appropriateness of a sinusoidal function by applying it to model the cumulative lactation curves for milk yield and composition in primiparous Holstein cows, and to compare it with three conventional growth models (linear, Richards and Morgan). Data used in this study were 911 144 test-day records for milk, fat and protein yields, which were recorded on 834 dairy herds from 2000 to 2011 by the Animal Breeding Centre and Promotion of Animal Products of Iran. Each function was fitted to the test-day production records using appropriate procedures in SAS (PROC REG for the linear model and PROC NLIN for the Richards, Morgan and sinusoidal equations) and the parameters were estimated. The models were tested for goodness of fit using adjusted coefficient of determination $\lpar {R_{{\rm adj}}^2 } \rpar $, root mean square error (RMSE), Akaike's information criterion (AIC) and the Bayesian information criterion (BIC). $R_{{\rm adj}}^2 $ values were generally high (>0.999), implying suitable fits to the data, and showed little differences among the models for cumulative yields. The sinusoidal equation provided the lowest values of RMSE, AIC and BIC, and therefore the best fit to the lactation curve for cumulative milk, fat and protein yields. The linear model gave the poorest fit to the cumulative lactation curve for all production traits. The current results show that classical growth functions can be fitted accurately to cumulative lactation curves for production traits, but the new sinusoidal equation introduced herein, by providing best goodness of fit, can be considered a useful alternative to conventional models in dairy research.
Timing of entry of Streptococcus uberis into the mammary gland of the dairy cow
Authors: Hillerton J Eric 
Published: May 2020

AbstractStreptococcus uberis do not colonise the teat canal and appear to invade the mammary gland of the dairy cow by direct entry though the canal. When they enter the mammary gland, and the early resulting processes, are unclear. Experimental infusions of the lactating mammary gland have been made to determine outcomes of infection, mastitis and disease. Infusion of 500 cfu bacteria was made immediately after milking (8 and 16 h intermilking interval) and 1, 4 or 12 h prior to milking. A mastitis resulted from all infusions, probably in response to the skim milk carrier. Infusions post milking resulted in clinical mastitis in more than half of the quarters, whereas infusion 1 h premilking created no clinical mastitis. Infusion 4 or 12 h pre milking resulted in the most severe reactions, with all quarters developing moderate to severe clinical mastitis. This was more rapid with the 4 h pre milking group. The results demonstrate that the initial inflammatory response caused by an invasion of the mammary gland is not necessarily protective against establishment of a pathogen, and that especially the response to invasion in the intermilking interval is often insufficient to prevent infection and/or disease.
No Time to Move: Motion, Painting and Temporal Experience
Authors: Shardlow Jack 
Published: May 2020

AbstractThis paper is concerned with the senses in which paintings do and do not depict various temporal phenomena, such as motion, stasis and duration. I begin by explaining the popular – though not uncontroversial – assumption that depiction, as a pictorial form of representation, is a matter of an experiential resemblance between the pictorial representation and that which it is a depiction of. Given this assumption, I illustrate a tension between two plausible claims: that paintings do not depict motion in the sense that video recordings do, and that paintings do not merely depict objects but may depict those objects as engaged in various activities, such as moving. To resolve the tension, I demonstrate that we need to recognise an ambiguity in talk of the appearance of motion, and distinguish between the depiction of motion and the depiction of an object as an object that is moving. Armed with this distinction, I argue that there is an important sense in which paintings depict neither motion, duration, nor – perhaps more controversially – stasis.
An Unusual Imported Bronze Jug Handle from Late Iron Age Easton, Suffolk
Authors: Beveridge Ruth , Woolhouse Tom 
Published: May 2020

ABSTRACTDeveloper-funded excavation in Easton, Suffolk, investigated part of a long-lived Iron Age settlement and Roman farmstead. One late Iron Age pit contained an unusual bronze handle, most likely from a jug, the form of which appears to be unique in Britain. The closest parallels are products of Italian workshops in the late first century b.c. This paper describes the likely form of the vessel and discusses the significance of its presence at a rural settlement on the ‘border’ of the Iceni and Trinovantes/Catuvellauni.
The influence of the local food environment on diet following residential relocation: longitudinal results from RESIDential Environments (RESIDE)
Authors: Bivoltsis Alexia , Trapp Gina , Knuiman Matthew , Hooper Paula , Ambrosini Gina Leslie 
Published: May 2020

AbstractObjective:To examine the associations of changes in the local food environment, individual behaviours and perceptions with changes in dietary intake, following relocation from an established neighbourhood to a new residential development.Design:Spatial food environment exposure measures were generated relative to each participant’s home address using the locations of food outlets at baseline (before moving house) and follow-up (1–2 years after relocation). Self-reported data on socio-demographics, self-selection, usual dietary intake, individual behaviours and perceptions of the local food environment were sourced from the RESIDential Environments (RESIDE) Project. Changes in spatial exposure measures, individual behaviours and perceptions with changes in dietary outcomes were examined using mixed linear models.Setting:Perth, Western Australia, 2003–2007.Participants:Adults (n1200) from the RESIDE Project.Results:Moving to a new residential development with more convenience stores and café restaurants around the home was significantly associated with an increase in unhealthy food intake (β= 0·049, 95 % CI 0·010, 0·089;β= 0·020, 95 % CI 0·007, 0·033) and was partially mediated by individual behaviours and perceptions. A greater percentage of healthy food outlets around the home following relocation was significantly associated with an increase in healthy food (β= 0·003, 95 % CI 0·001, 0·005) and fruit/vegetable intake (β= 0·002, 95 % CI 0·001, 0·004).Conclusions:Policy and planning may influence dietary intakes by restricting the number of convenience stores and other unhealthy food outlets and increasing the relative percentage of healthy food outlets.
Volumetric-modulated arc therapy in craniospinal irradiation: a dosimetric analysis of acuros XB and analytical anisotropic algorithm comparing flattened and flattening filter-free beams with different energies
Authors: Tamilarasu Suresh , Saminathan Madeswaran 
Published: May 2020

AbstractAim:To compare the dosimetric performance of flattening filter-free (FFF) beam and flattened beams (FBs) utilising volumetric-modulated arc therapy (VMAT) for craniospinal irradiation (CSI) planning.Materials and Methods:Five medulloblastoma patients were randomly selected retrospectively and 40 plans were generated. The dose prescription to the planning target volume (PTV) was 36 Gy in 20 fractions. VMAT plans were created using 6 MV and 10 MV FB and FFF beam. Final dose calculations were performed using Acuros XB (AXB) and analytical anisotropic algorithm (AAA). Dosimetric parameters such as D98%, D95%, D50%, V110%, conformity index (CI), homogeneity index (HI), low-grade dose index, high-grade dose index, dose to the organ at risks (OARs) and normal tissue mean dose were noted. The effect of low-dose volume on normal tissue was also analysed.Results:The 6 MV and 10 MV flattened and FFF beam plan generates similar target coverage, and a significant difference was observed in the HI and CI. FFF beam plan produces lower doses in some of the OARs as compared to FB. Significant differences were also noted in monitor unit (MU), body-PTV mean dose and low-dose spillage regions (1–10 Gy) outside the PTV. In our study, 6 MV and 10 MV FFF beam beams need 23–25% more MUs to achieve planning goals when compared to FBs. The increased MUs in FFF plan decreases the body-PTV mean dose (0·07–0·09 Gy in 6 MV FFF and 0·31 Gy in 10 MV FFF in both algorithms) when compared to FB plans.Conclusion:FFF beams generate a highly conformal and homogenous plan in CSI cases. FFF beam plan reduced the non-tumour dose and will aid in reducing the probability of second malignancies.
Miocene C4 Grassland Expansion as Recorded by the Indus Fan
Authors: Feakins Sarah J. , Liddy Hannah M. , Tauxe Lisa , Galy Valier , Feng Xiaojuan , Tierney Jessica E. , Miao Yunfa , Warny Sophie 
Published: May 2020

AbstractIn the late Miocene, grasslands spread across the forested floodplains of the Himalayan foreland, but the causes of the ecological transition are still debated. Recent seafloor drilling by the International Ocean Discovery Program (IODP) provides an opportunity to study the transition across a larger region as archived in the Indus submarine fan. We present a multiproxy study of past vegetation change based on analyses of the carbon isotopic composition (δ13C) of bulk organic carbon, plant wax n‐alkanes and n‐alkanoic acids, and quantification of lignin phenols, charcoal, and pollen. We analyze the hydrogen isotopic composition (δD) of plant wax to reconstruct precipitation δD. We use the Branched and Isoprenoid Tetraether (BIT) index to diagnose shifts between terrestrial versus marine lipid inputs between turbidite and hemipelagic sediments. We reconstruct ocean temperatures using the TEX86 index only where marine lipids dominate. We find evidence for the late Miocene grassland expansion in both facies, confirming this was a regional ecosystem transformation. Turbidites contain dominantly terrestrial matter from the Indus catchment (D‐depleted plant wax), delivered via fluvial transport as shown by the presence of lignin. In contrast, hemipelagic sediments lack lignin and bear D‐enriched plant wax consistent with wind‐blown inputs from the Indian peninsula; these show a 7.4–7.2 Ma expansion of C4 grasslands on the Indian subcontinent. Within each facies, we find no clear change in δD values across the late Miocene C4 expansion, implying consistent distillation of rainfall by monsoon dynamics. Yet, a cooling in the Arabian Sea is coincident with the C4 expansion.
Close Collaboration with Parents intervention improves family-centered care in different neonatal unit contexts: a pre–post study
Authors: Toivonen Mirka , Lehtonen Liisa , Löyttyniemi Eliisa , Ahlqvist-Björkroth Sari , Axelin Anna 
Published: May 2020

Abstract
Background
The quality of family-centered care and parental participation in care in neonatal units differ widely across the world. Appropriate education might be an effective way to support medical staff in neonatal units to collaborate with parents and implement family-centered care. The aim of this study was to evaluate the effects of the educational intervention on the quality of family-centered care in eight Finnish neonatal intensive care units from both the staff and parent perspectives.

Methods
A mixed-method pre–post intervention study was conducted in eight neonatal intensive care units in Finland. Data were collected from staff and parents using the Bliss Baby Charter audit tool and semi-structured interviews.

Results
The quality of family-centered care, as assessed by staff and parents, increased significantly after the intervention in all eight units. The intervention was able to help staff define and apply elements of family-centered care, such as shared decision making and collaboration between parents and staff. In interviews, staff described that they learned to support and trust the parents’ ability to take care of their infant.

Conclusions
The educational intervention increased the quality of family-centered care and enabled mutual partnership between parents and staff.

Impact

This study shows that the educational intervention for the whole multi-professional staff of the neonatal unit improved the quality of family-centered care.

The Close Collaboration with Parents intervention enabled mutual partnership between parents and staff.

It also provides evidence that during The Close Collaboration with Parents intervention staff learned to trust the parents’ ability to take care of their infant.