bluuebunny/crossref_metadata_2025_split huggingface dataset:
Understanding the experience of diagnostic overshadowing associated with severe mental illness from the consumer and health professional perspective: a qualitative systematic review protocol
Authors: Molloy Renee , Munro Ian , Pope Nicole 
Published: November 2020

ABSTRACT

Objective:
The objective of this review is to identify, appraise, and synthesize available qualitative evidence related to diagnostic overshadowing in mental health consumers who present with clinical manifestations of physical illness.

Introduction:
A lived experience of mental illness is associated with compromised physical health and decreased life expectancy. Mental health consumers face greater barriers to accessing treatment for physical illnesses and are less likely to receive appropriate physical care than those without mental illness. Physical illnesses may go underdiagnosed and undertreated in mental health consumers because clinicians tend to focus on the mental illness to the exclusion of other health problems, a phenomenon called diagnostic overshadowing. This systematic review will combine the experiences of mental health consumers and health care professionals to gain deeper understanding of diagnostic overshadowing.

Inclusion criteria:
This review will consider qualitative studies that include the experiences of diagnostic overshadowing in mental health consumers and/or the health care professionals who treat them. Studies conducted in any health care facility or service offering care for physical illnesses will be considered.

Methods:
MEDLINE, CINAHL, PsycINFO, and Scopus will be searched along with sources of gray literature. Studies in English published from 2004 onward will be considered. Retrieval of full-text studies, assessment of methodological quality, and data extraction will be performed independently by two reviewers. Findings will, where possible, be pooled using JBI SUMARI with the meta-aggregation approach. A ConQual Summary of Findings will be presented.

Systematic review registration number:
PROSPERO CRD42020186418
Overview of registries for anaphylaxis: a scoping review protocol
Authors: Stiles Samantha L. , Roche Ingrid , Said Maria , Clifford Rhonda M. , Sanfilippo Frank M. , Loh Richard , Salter Sandra M. 
Published: November 2020

ABSTRACT

Objective:
This review will describe the scope and operational features of global registries for anaphylaxis and assess their contribution to improving knowledge and care of anaphylaxis by measuring their research output.

Introduction:
The incidence of anaphylaxis is increasing around the world. Structured reporting systems, such as patient registries, are needed to better understand the burden of anaphylaxis and protect the growing number of allergic patients.

Inclusion criteria:
The concept to be mapped is registries across the world that enroll patients who have experienced anaphylaxis. Published and gray literature sources will be considered if they describe the scope and operational features of anaphylaxis registries. Only full-text studies published in English will be included. There will be no date restriction.

Methods:
The JBI methodology for scoping reviews will be followed. Embase, MEDLINE, Scopus, and CINAHL will be searched from inception date for relevant articles. Identified keyword and index terms will be adapted for searches of gray literature sources, using Google advanced search functions. The authors and developers of identified registries will be contacted, where possible, to obtain additional information about the development and structure of systems. Data will be extracted by two independent reviewers. Any discrepancies will be resolved by a third reviewer. Tables and a narrative summary will be used to describe and compare the scope and features of anaphylaxis registries and outline their output to assess their contribution to research, clinical practice, and public health policy for anaphylaxis.
Study on Failure Prediction Methodology of Flexible Pipes Under Large Torsion Considering Layer Interaction
Authors: Wu Shanghua , Yang Zhixun , Yin Yuanchao , Lu Qingzhen , Chen Jinlong , Yue Qianjin , Yan Jun , Gao Bo 
Published: November 2020

Abstract
Flexible pipes are distinctive multi-layer structures that are designed to resist different loads when they are utilized in severe deep-water environments. However, they lack a special structural layer to withstand torsion. Tensile armors mainly resist torque although they are designed to bear only tension with the consideration of torque balance. Especially, when a flexible pipe is loaded out from the cargo vessel into the installation vessel, twist angle could be accumulated at high level so that some failure modes will occur due to the large torsion. However, the failure mechanism is very complicated owing to the interaction effect between the different layers. First, the interaction mechanism between the layers of flexible pipes is analyzed under large torsion, and a few potential failure modes are identified, such as the tensile armors strength failure and inner structural layers collapse failure. In addition, to offer a quantitative prediction of the maximum allowable twist angle for flexible pipes, a mechanical model is set up to analyze their torsion behavior. The theoretical descriptions of the involved failure behaviors are investigated, and the theoretical methodology of the failure criteria for predicting the torsion resistance capacity is proposed. Finally, a numerical model is established through experimental verification. The numerical results illustrate that the theoretical prediction methodology is conservative, which can be used to predict the torsion resistance capacity of flexible pipes and to guide their operation and installation in engineering.
Assessment of the Acoustic Reflectometry Technique to Detect Pipe Blockages
Authors: Monteiro Paulo C. C. , da Silva Monteiro Luciana L. , Netto Theodoro Antoun , Vidal J. L. A. 
Published: November 2020

Abstract
Flow assurance is an important aspect of deepwater pipeline design and operation since one of the critical issues is the eventual initiation and growth of hydrate or paraffin blockages under certain conditions. Another relevant problem is the incidence of inorganic scale deposition in oil well production tubes during operation. Offshore operators can obtain enormous benefits if information regarding the position and extent of an eventual blockage is available since mitigation measures can be optimized. This work deals with experimental and numerical simulations of an acoustic system to identify and measure blockages. The technique uses a short duration acoustic pulse that is injected into the pipe. When the pulse encounters an impedance discontinuity, a portion is reflected toward the acoustic source. The analysis of the measured signal reflections can provide valuable data related to the location and size of the blockages. An experimental setup with a steel pipe of 4 in. internal diameter and length of 100 m was developed to evaluate the suitability of the technique for gas pipelines. In parallel, finite element analyses were performed using the commercial software abaqus to simulate the same physical parameters. The experiments were numerically reproduced with good correlation proving the potential of the technique. Subsequently, a parametric study was carried out to examine the acoustic detection capability using different blockage types. Finally, a prototype of the acoustic reflectometry detection system was developed and tested in a full-scale onshore water-filled pipeline to show the feasibility of the method for detecting blockages.
A Novel Combination Algorithm of Different Methods of Maximum Power Point Tracking for Grid-Connected Photovoltaic Systems
Authors: Ali Mahmoud N. 
Published: November 2020

Abstract
This paper proposes a novel algorithm to combine two or more techniques of maximum power point tracking (MPPT) to increase the output dc power and the efficiency of photovoltaic (PV) arrays. Different MPPT methods have dissimilar responses for the same environmental circumstances. The combination of multiple methods has the advantage of ever acquiring maximum power as the environmental conditions change. The proposed algorithm is used to enhance the selection of the most suitable duty cycle of the combined methods, based on the power-voltage characteristics, to get the best tracking response. Multiple classical and/or artificial intelligence (AI)-based MPPT methods can be combined based on this selection algorithm. To demonstrate its effectiveness, two examples are illustrated. The first one is the combination of two classical MPPT methods, which are the incremental conductance (INC) and the perturb-and-observe (P&O). The second example is to combine two AI-based MPPT, which are the artificial neural network (ANN) and the fuzzy logic control (FLC). The simulation results of the application of the proposed algorithm to a grid-connected PV system model justify its capability to acquire better static and dynamic responses than the responses of individual MPPT methods.
Thermodynamic and Economic Assessment of Solar Thermal Power Plants for Cameroon
Authors: Biboum Alain C. , Yilanci Ahmet 
Published: November 2020

Abstract
In this study, it is aimed to conduct the thermodynamic and economic analysis of solar thermal power plants using parabolic trough collectors (PTC), linear Fresnel reflectors (LFR), and solar tower (ST) technologies for Cameroon. The analysis is performed for each power plant with the installed capacity of 5 MWe. Initial investment costs for the solar thermal power plants using PTC, LFR, and ST technologies are estimated to be 33.49 Million USD, 18.77 Million USD, and 36.31 Million USD, while levelized costs of electricity (LCOE) are found to be varying from 145.6 USD/MWh to 186.8 USD/MWh, 112.2 USD/MWh to 154.2 USD/MWh, and 179.2 USD/MWh to 220.4 USD/MWh, respectively. For the solar thermal power plants using PTC, LFR, and ST technologies, payback periods are obtained to be 6.57 years, 6.84 years, and 6.02 years, and also, internal rates on the return are calculated to be 21.03%, 20.42%, and 22.47%, respectively. Overall energy and exergy efficiency values are found to be 13.39% and 14.37%; 11.90% and 13.74%; 12.13% and 13.64% for the solar thermal power plants using PTC, LFR, and ST technologies, respectively. In conclusion, it is seen that LFR technology presents the best performance with the combination of thermodynamic and economic metrics for the deployment of solar thermal power plants in the countries in sub-Saharan Africa like Cameroon.
Magnetohydrodynamics of Lubricant in Recessed Conical Hybrid Journal Bearing With Taper Error
Authors: Kumar Abhishek , Sharma Satish C. 
Published: November 2020

Abstract
To improve the performance accuracy of a conical journal bearing system, the surface error needs to be considered in the analysis since a tiny difference in dimensional values can alter the performance; the consideration of surface error may degrade the performance behavior of bearing. However, a better way to overcome such degradation may be to make use of magnetohydrodynamics (MHDs) of fluid. Therefore, the present work is planned to investigate the impact of taper error and MHD lubricant in recessed conical hybrid journal bearing. In this article, the Reynolds equation is derived under stated assumptions along with frictional power loss expression and finally solved using the finite element analysis, Newton–Raphson method, and generalized minimum residual method. The conducted research helped in determination of optimum values of recess width, land width ratio, and restrictor design parameter, and also obtaining the results corresponding to distinct performance indices. The outcome of these results may inspire practicing designers for the development of better tribo components.
Patient and general practitioner views of tools to delay diagnostic imaging for low back pain: a qualitative study
Authors: Traeger Adrian C , Checketts Juliet , Tcharkhedian Elise , O’Connor Denise A , Klinner Christiane , Sharma Sweekriti , Vyas Parima , Albarqouni Loai , McCaffery Kirsten 
Published: November 2020

ObjectiveDelayed prescribing is a promising strategy to manage patient requests for unnecessary tests and treatments. The purpose of this study was to explore general practitioner (GP) and patient views of three communication tools (Overdiagnosis Leaflet, Dialogue Sheet and ‘Wait-and-see’ Note) to support delayed prescribing of diagnostic imaging.DesignQualitative study.SettingPrimary and emergency care in Sydney, Australia.Participants16 GPs and 14 patients with recent episode of low back pain.OutcomeViews on the tools to delay diagnostic imaging for low back pain. Data were collected using a combination of focus groups and individual interviews.AnalysisTwo researchers independently performed a thematic analysis, and the author team reviewed and refined the analysis.ResultsGP participants responded positively to the Overdiagnosis Leaflet. The Dialogue Sheet and ‘Wait-and-see’ Note raised several concerns about patient pushback, adding to time pressure and being overwhelmed with hard-to-find paper resources. GPs preferred to communicate verbally the reasons to delay an imaging test. For patients, the reactions to the tools were more positive. Patients valued written information and a signed agreement to delay the test. However, patients expressed that a strong desire for diagnostic imaging would likely over-ride any effect of written advice to delay the test. The term ‘false alarm’ to describe overdiagnosis was poorly understood by patients.ConclusionsGPs and patients agreed that a leaflet about overdiagnosis could support a delayed prescribing approach to imaging for low back pain. The Dialogue Sheet and ‘Wait-and-see’ Note were acceptable to patients but not to GPs.
Measuring the Higgs self-coupling via Higgs-pair production at a 100 TeV p–p collider
Authors: Mangano Michelangelo L. , Ortona Giacomo , Selvaggi Michele 
Published: November 2020

AbstractHiggs pair production provides a unique handle for measuring the strength of the Higgs self interaction and constraining the shape of the Higgs potential. Among the proposed future facilities, a circular 100 TeV proton–proton collider would provide the most precise measurement of this crucial quantity. In this work, we perform a detailed analysis of the most promising decay channels and derive the expected sensitivity of their combination, assuming an integrated luminosity of 30 $$\hbox {ab}^{-1}$$

ab

-
1

. Depending on the assumed detector performance and systematic uncertainties, we observe that the Higgs self-coupling will be measured with a precision in the range 3.4–7.8% at 68% confidence level.
Charged scalar production at the compact linear collider for the $$S_3 \otimes \mathbb {Z}_2$$ model
Authors: De Conto G. , Machado A. C. B. , Montaño J. , Chimenti P. 
Published: November 2020

AbstractWe present a model with$$S_3 \otimes \mathbb {Z}_2$$S3⊗Z2model plus a sterile neutrino and its phenomenological expectations for the production of charged scalars at the compact linear collider. At tree level, our model predicts a total cross section in between 0.1 and$$10^{-5}$$10-5pb for the$$e^- e^+ \rightarrow H^+ H^-$$e-e+→H+H-process, considering all possible mass values for the charged scalar in the CLIC experiment. We also show that this prediction holds regardless of the masses of the other exotic particles and their couplings. We also show that an indirect detection from its effects in the$$e \overline{e} \rightarrow e \overline{e}$$ee¯→ee¯+ missing energy process is possible under specific conditions, or a direct detection under other circumstances. However, one cannot use this process to study the sterile neutrinos present in this model, given that they have a small influence in the total cross-section for the direct detection of the exotic scalar to be possible.
Tests of CPT invariance in gravitational waves with LIGO-Virgo catalog GWTC-1
Authors: Wang Sai , Zhao Zhi-Chao 
Published: November 2020

AbstractA discovery of gravitational waves from binary black holes raises a possibility that measurements of them can provide strict tests of CPT invariance in gravitational waves. When CPT violation exists, if any, gravitational waves with different circular polarizations could gain a slight difference in propagating speeds. Hence, the birefringence of gravitational waves is induced and there should be a rotation of plus and cross modes. For CPT-violating dispersion relation$${\omega ^{2}=k^{2}}$$ω2=k2$${\pm 2\zeta k^{3}}$$±2ζk3, where a sign$${\pm }$$±denotes different circular polarizations, we find no substantial deviations from CPT invariance in gravitational waves by analyzing a compilation of ten signals of binary black holes in the LIGO-Virgo catalog GWTC-1. We obtain a strict constraint on the CPT-violating parameter, i.e.,$$\zeta =0.14^{+0.22}_{-0.31}\times 10^{-15}\,\text {m}$$ζ=0.14-0.31+0.22×10-15m, which is around two orders of magnitude better than the existing one. Therefore, this study stands for the up-to-date strictest tests of CPT invariance in gravitational waves.
On computing secure domination of trees
Authors: Poureidi Abolfazl 
Published: November 2020

Let [Formula: see text] be a graph. A subset [Formula: see text] is a dominating set of [Formula: see text] if for each [Formula: see text] there is a vertex [Formula: see text] adjacent to [Formula: see text]. A dominating set [Formula: see text] of [Formula: see text] is a secure dominating set of [Formula: see text] if for each [Formula: see text] there is a vertex [Formula: see text] adjacent to [Formula: see text] such that [Formula: see text] is also a dominating set of [Formula: see text]. The minimum cardinality of a secure dominating set of [Formula: see text] is called the secure domination number of [Formula: see text]. Burger et al. [A linear algorithm for secure domination in trees, Discrete Appl. Math. 171 (2014) 15–27] proposed a nontrivial algorithm for computing a minimum secure dominating set of a given tree in linear time and space. In this paper, we give a dynamic programming algorithm to compute the secure domination number of a given tree [Formula: see text] in [Formula: see text] time and space and then using a backtracking search algorithm we can find a minimum secure dominating set of [Formula: see text] in [Formula: see text] time and space that its implementation is much simpler than the implementation of the algorithm proposed by Burger et al.
Design of a wideband random phase gradient metasurface by using line-shaped element
Authors: Wu Jiangniu , Zhang Yakuan , Su Chen , Sun Jing , Fang Jinyong , Xia Song 
Published: November 2020

Based on phase randomization theory, a method for manufacturing metasurface with diffuse scatter performance is proposed. By using the line-shaped elements with random rotate angles and random distributing positions, the metasurface can achieve good diffusion scatter performance with polarization independent characteristic. This paper studies the effects of the length of line-shaped elements on the metasurface response frequency and the radar cross section (RCS) reduction bandwidth. The simulated result shows that the wideband properties of metasurface benefit from two different length line-shaped elements. The proposed metasurface can reduce the RCS significantly for both normal and oblique incident waves. The line-shaped element is suitable for all sizes of detected objects and it can be directly sprayed on the detected object surface. To demonstrate the effectiveness of the proposed method, the metasurface prototype is fabricated and measured. Experimental results show that the fabricated metasurface can effectively reduce RCS, and it has great application prospects in stealth technology.
BodyWire-HCI
Authors: Maity Shovan , Yang David , Redford Scott Stanton , Das Debayan , Chatterjee Baibhab , Sen Shreyas 
Published: November 2020

Communication during touch provides a seamless and natural way of interaction between humans and ambient intelligence. Current techniques that couple wireless transmission with touch detection suffer from the problem of selectivity and security, i.e., they cannot ensure communication only through direct touch and not through close proximity. We present
BodyWire-HCI
, which utilizes the human body as a wire-like communication channel, to enable human–computer interaction, that for the first time, demonstrates selective and physically secure communication strictly during touch. The signal leakage out of the body is minimized by utilizing a novel, low frequency Electro-QuasiStatic Human Body Communication (EQS-HBC) technique that enables interaction strictly when there is a conductive communication path between the transmitter and receiver through the human body. Design techniques such as capacitive termination and voltage mode operation are used to minimize the human body channel loss to operate at low frequencies and enable EQS-HBC. The demonstrations highlight the impact of
BodyWire-HCI
in enabling new human–machine interaction modalities for variety of application scenarios such as secure authentication (e.g., opening a door and pairing a smart device) and information exchange (e.g., payment, image, medical data, and personal profile transfer) through touch (https://www.youtube.com/watch?v=Uwrig2XQIH8).
The Subgraph Testing Model
Authors: Goldreich Oded , Ron Dana 
Published: November 2020

Following Newman (2010), we initiate a study of testing properties of graphs that are presented as subgraphs of a fixed (or an explicitly given) graph. The tester is given free access to a base graphG= ([n],E) and oracle access to a functionf:E→ {0, 1} that represents a subgraph ofG. The tester is required to distinguish between subgraphs that possess a predetermined property and subgraphs that are far from possessing this property.We focus on bounded-degree base graphs and on the relation between testing graph properties in the subgraph model and testing the same properties in the bounded-degree graph model. We identify cases in which testing is significantly easier in one model than in the other as well as cases in which testing has approximately the same complexity in both models. Our proofs are based on the design and analysis of efficient testers and on the establishment of query-complexity lower bounds.
Hybrid Repair Combined with Fresh Arterial Allograft Extra-Anatomical Reconstruction: The Treatment of Infrarenal Abdominal Aneurysm above an Aortobifemoral Bypass Complicated by an Infected Pseudoaneurysm in the Left Groin
Authors: Novotny Robert , Marada Tomas , Novotny Jiri , Kristek Jakub , Chlupac Jaroslav , Kudla Michal , Lipar Kvetoslav , Mendl Jiri , Fronek Jiri , Janousek Libor 
Published: November 2020

Introduction. A 72-year-old male patient was admitted into our centre with large infected pseudoaneurysm (PSA) in the left groin. The patient underwent a CT angiography (CTA) that confirmed a large partly thrombosed

6.5
×
5.5

cm PSA in the left groin arising from the distal anastomosis of the aortobifemoral bypass (ABF). Furthermore, the CTA revealed 11 cm juxtarenal abdominal aortic aneurysm (JAAA) from which the proximal anastomosis of the ABF was arising. Method. Aorto-uni-iliac stent graft Cook was placed from the right groin trough native severely stenotic right iliac arteries with proximal landing zone below the renal arteries, excluding the JAAA and the ABF. The distal landing zone was in the common iliac artery maintaining patent right internal iliac artery. Afterwards, a femoro-femoral crossover bypass from right to left was performed using a fresh arterial allograft. Postprocedurally, the hospital stay was uneventful. The left groin PSA cultures came positive for Staphylococcus epidermidis and Corynebacterium tuberculostearicum, both sensitive to vancomycin and rifampicin. Result. The patient underwent intravenous ATB treatment with vancomycin for two weeks, followed by four weeks of oral rifampicin. The patient was discharged on the 20th postoperative days. Conclusion. Hybrid repair combining aortic stent graft and extra-anatomical bypass in the treatment of infected distal parts of an aortofemoral bypass is an acceptable treatment modality.