bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of Thickness and Winding Angle of Reinforcement Laminates on Burst Pressure Capacity of Thermoplastic Composite Pipes
Authors: Xia H. , Shi C. , Wang J. , Bao X. , Li H. , Fu G. 
Published: February 2021

Abstract
The cross section of thermoplastic composite pipes (TCPs) consists of three layers: an inner liner, reinforcement laminates, and an outer jacket; the three layers are fully bonded together to form a solid-walled structure. In this study, the mechanical behaviors of TCPs under internal pressures were investigated using analytical and finite element analysis (FEA) methods. The analytical method that is based on the three-dimensional (3D) anisotropy elastic theory takes into account the nonuniform distribution of stresses and strains through the wall thickness of the pipe. FEA models were setup using the software abaqus to predict the stress distribution of a TCP. The 3D Tsai-Wu failure criterion was used to predict the maximum burst pressure of TCPs. Effects of winding angles and the number of reinforcement plies on the burst pressure of TCPs were studied. Results derived from the analytical method and the FEA method verified each other, which show that the burst pressure of a TCP increases asymptotically as the number of reinforcement plies increases. The optimal winding angle associated with the maximum burst pressure is not a constant value, instead, it varies as the thickness of the laminate layer increases. This study provides useful tools and guidance for the design and analysis of TCPs, while further validation experiments are still needed.
Recommendations for improving follow-up care for patients with mesothelioma: a qualitative study comprising documentary analysis, interviews and consultation meetings
Authors: Henshall Catherine , Davey Zoe , Walthall Helen , Ball Hannah , Shahidi Mitra , Park John , Rahman Najib 
Published: January 2021

ObjectivesThe study aim was to explore experiences of patients with pleural mesothelioma of follow-up care in three National Health Service (NHS) Trusts to develop recommendations for practice.DesignThe study design was qualitative and comprised three interlinked phases: a documentary analysis, interviews and consultation meetings. Altheide and Johnson’s Analytic Realism theoretical framework guided the thematic data analysis process.SettingThe study was conducted in three NHS Trusts in South England. Two were secondary care settings and the third was a tertiary centre.ParticipantsThe secondary care trusts saw 15–20 patients with new mesothelioma per year and the tertiary centre 30–40. The tertiary centre had a designated mesothelioma team. Twenty-one patients met the inclusion criteria: >18 years, mesothelioma diagnosis and in follow-up care. Non-English speaking participants, those unable to provide written informed consent or those whom the clinical team felt would find participation too distressing were excluded. All participants were white, 71% were 70–79 years old and 71% were men. Three consultation meetings were conducted with key stakeholders including mesothelioma nurse specialists, patients with mesothelioma, carers and local clinical commissioning group members.Main outcome measuresSpecific outcomes were to gain a detailed understanding of mesothelioma follow-up care pathways and processes and to develop coproduced recommendations for practice.ResultsMesothelioma pathways were not always distinct from lung cancer care pathways. All trusts provided follow-up information and resources but there was varied information on how to access local support groups, research or clinical trial participation. Five themes were developed relating to people; processes; places; purpose and perception of care. Coproduced recommendations for improving mesothelioma follow-up pathways were developed following the consultation meetings.ConclusionsThis study has developed recommendations which identify the need for patients with pleural mesothelioma to access consistent, specialist, streamlined mesothelioma care, centred around specialist mesothelioma nurses and respiratory consultants, with input from the wider multidisciplinary team.
Scoping review protocol: bladder cancer in Nigeria: what are the gaps in clinical care and research?
Authors: Kibaru Joyce , Kotecha Pinky , Iya Abdulkarim Muhammad , Russell Beth , Abdullahi Muzzammil , Alhassan Sani Usman , Mustapha Muhammad Inuwa , Bryan Richard T , Van Hemelrijck Mieke 
Published: January 2021

IntroductionBladder cancer (BC) is the 10th common cancer worldwide and ranks seventh in Nigeria. This scoping review aims to identify the gaps in clinical care and research of BC in Nigeria as part of the development of a larger national research programme aiming to improve outcomes and care of BC.Methods and analysisThis review will be conducted according to Arksey and O’Malley scoping review methodology framework. The following electronic databases will be searched: Medline (using the PubMed interface), Ovid Gateway (Embase and Ovid), Cochrane library and Open Grey literature. Two independent reviewers will screen titles and abstracts and subsequently screen full-text studies for inclusion, any lack of consensus will be discussed with a third reviewer. Any study providing insight into the epidemiology or treatment pathway of BC (RCTs, observations, case series, policy paper) will be included. A data chart will be used to extract relevant data from the included studies. Results will be reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews. A consultation process will be carried out with a multidisciplinary team of Nigerian healthcare professionals, patients and scientists.Ethics and disseminationThe results will be disseminated through peer-reviewed publications. By highlighting the key gaps in the literature, this review can provide direction for future research and clinical guidelines in Nigeria (and other low-income and middle-income countries), where BC is more prevalent due to local risk factors and healthcare settings.
Sex differences in vectorcardiogram of African-Americans with and without cardiovascular disease: a cross-sectional study in the Jackson Heart Study cohort
Authors: Pollard James D , Haq Kazi T , Lutz Katherine J , Rogovoy Nichole M , Paternostro Kevin A , Soliman Elsayed Z , Maher Joseph , Lima Joao AC , Musani Solomon , Tereshchenko Larisa G 
Published: January 2021

ObjectivesWe hypothesised that (1) the prevalent cardiovascular disease (CVD) is associated with global electrical heterogeneity (GEH) after adjustment for demographic, anthropometric, socioeconomic and traditional cardiovascular risk factors, (2) there are sex differences in GEH and (3) sex modifies an association of prevalent CVD with GEH.DesignCross-sectional, cohort study.SettingProspective African-American The Jackson Heart Study (JHS) with a nested family cohort in 2000–2004 enrolled residents of the Jackson, Mississippi metropolitan area.ParticipantsParticipants from the JHS with analysable ECGs recorded in 2009–2013 (n=3679; 62±12 y; 36% men; 863 family units). QRS, T and spatial ventricular gradient (SVG) vectors’ magnitude and direction, spatial QRS-T angle and sum absolute QRST integral (SAI QRST) were measured.OutcomePrevalent CVD was defined as the history of (1) coronary heart disease defined as diagnosed/silent myocardial infarction, or (2) revascularisation procedure defined as prior coronary/peripheral arterial revascularisation, or (3) carotid angioplasty/carotid endarterectomy, or (4) stroke.ResultsIn adjusted mixed linear models, women had a smaller spatial QRS-T angle (−12.2 (95% CI −19.4 to -5.1)°; p=0.001) and SAI QRST (−29.8 (−39.3 to −20.3) mV*ms; p<0.0001) than men, but larger SVG azimuth (+16.2(10.5–21.9)°; p<0.0001), with a significant random effect between families (+20.8 (8.2–33.5)°; p=0.001). SAI QRST was larger in women with CVD as compared with CVD-free women or men (+15.1 (3.8–26.4) mV*ms; p=0.009). Men with CVD had a smaller T area (by 5.1 (95% CI 1.2 to 9.0) mV*ms) and T peak magnitude (by 44 (95%CI 16 to 71) µV) than CVD-free men. T vectors pointed more posteriorly in women as compared with men (peak T azimuth + 17.2(8.9–25.6)°; p<0.0001), with larger sex differences in T azimuth in some families by +26.3(7.4–45.3)°; p=0.006.ConclusionsThere are sex differences in the electrical signature of CVD in African-American men and women. There is a significant effect of unmeasured genetic and environmental factors on cardiac repolarisation.
Risk of dyslipidaemia with antipsychotic drug treatment in Chinese inpatients with mental illness: a hospital-based cohort study
Authors: Ma Qiuyue , Yang Fude , Ma Botao , Jing Wenzhan , Liu Jue , Guo Moning , Li Juan , Wang Zhiren , Liu Min 
Published: January 2021

ObjectivesTo determine the association of long-term use of antipsychotics with the risk of dyslipidaemia.DesignA hospital-based cohort study.SettingElectronic health record data of adult mental health inpatients in all 19 specialised psychiatric hospitals in Beijing from 1 January 2005 to 31 December 2018 was obtained.ParticipantsParticipants were inpatients aged 18 years or older with at least two admissions, excluding those with diagnosed dyslipidaemia and fatty liver at the first admission. We included 22 329 adult inpatients with no dyslipidaemia and fatty liver at baseline. The exposure was antipsychotics use, defined as antipsychotics prescription in the treatment procedures of medical record preceding dyslipidaemia diagnosis during the follow-up period. 15 930 (71.34%) had antipsychotics use, and 6399 (28.66%) never had antipsychotics use. We used the length of follow-up as proxy for the duration of antipsychotics exposure.Primary outcome measuresThe primary outcome was newly recorded dyslipidaemia defined by International Classification of Diseases, 10th Revision codes.Results4069 inpatients had newly recorded dyslipidaemia during 73 418.07 person-years, the incidence rate was 5.54 per 100 person-years. The incidence rate was 7.22 per 100 person-years in the exposed group and 3.43 per 100 person-years in the unexposed group. Results of multivariate analysis showed that antipsychotics use was associated with higher risk of dyslipidaemia (adjusted HR, aHR 2.41, 95% CI 2.24 to 2.59, p<0.001), regardless of the duration of antipsychotics use. Inpatients aged 18–29 years had higher risk of dyslipidaemia (aHR 3.38, 95% CI 2.77 to 4.12, p=0.004) than those in other age groups. Inpatients without hypertension had substantially higher risk of dyslipidaemia after antipsychotic exposure.ConclusionsBoth short-term and long-term antipsychotics use was associated with higher risk of dyslipidaemia among Chinese inpatients with mental illness. Dyslipidaemia was especially prominent in young patients and those without hypertension.
Collapse of an axion scalar field
Authors: Chakrabarti Soumya 
Published: February 2021

AbstractThe manuscript deals with an interacting scalar field that mimics the evolution of the so-called axion scalar dark matter or axion like particles with ultra-light masses. It is discussed that such a scalar along with an ordinary fluid description can collapse under strong gravity. The end state of the collapse depends on how the axion interacts with geometry and ordinary matter. For a self-interacting axion and an axion interacting with geometry the collapse may lead to a zero proper volume singularity or a bounce and total dispersal of the axion. However, for an axion interacting with the ordinary fluid description, there is no formation of singularity and the axion field exhibits periodic behavior before radiating away to zero value. Usually this collapse and dispersal is accompanied by a violation of the null energy condition for the ordinary fluid description.
The Oslo Cyclotron Laboratory
Authors: Görgen A. , Guttormsen M. , Larsen A. C. , Siem S. , Adli E. , Edin N. F. J. , Gjersdal H. , Henriksen G. , Malinen E. , Modamio V. , Schoultz B. , Sobas P. A. , Theodossiou T. A. , Wikne J. C. 
Published: February 2021

AbstractResearch at the Oslo Cyclotron Laboratory at the University of Oslo is focused on spectroscopy experiments for nuclear structure and nuclear astrophysics using the Oslo Scintillator Array OSCAR. Light-ion beams from the$$K=35$$K=35cyclotron are furthermore used for studies in radiation biology and medical physics, for research and development related to medical isotope production, and for irradiation of materials and electronics components. Here we present an overview of the laboratory and its research infrastructure, give a brief discussion of the respective research programs and methods, and present recent highlights.
Generalized uncertainty principle and its implications on geometric phases in quantum mechanics
Authors: Luciano Giuseppe Gaetano , Petruzziello Luciano 
Published: February 2021

AbstractWe study the implications of the generalized uncertainty principle (GUP) with a minimal measurable length on some quantum mechanical interferometry phenomena, such as the Aharonov–Bohm, Aharonov–Casher, COW and Sagnac effects. By resorting to a modified Schrödinger equation, we evaluate the lowest-order correction to the phase shift of the interference pattern within two different GUP frameworks: the first one is characterized by the redefinition of the physical momentum only, and the other is a Lorentz covariant GUP which also predicts non-commutativity of spacetime. The obtained results allow us to fix upper bounds on the GUP deformation parameters which may be tested through future high-precision interferometry experiments.
The Mechanical Strength of Side-to-Side Tendon Repair Using a Modified Krackow Technique
Authors: Ueno Keisuke , Suzuki Takane , Matsuura Yusuke , Sukegawa Koji , Ohtori Seiji , Kuniyoshi Kazuki 
Published: February 2021

Background: The purpose of the present study was to assess the biomechanical strength and properties of a modified Krackow technique for side-to-side tendon repair with a short overlap length. Methods: The flexor digitorum superficialis, flexor digitorum profundus, and flexor pollicis longus muscles were harvested from 10 fresh frozen cadavers. Overall, 60 tendon repairs were divided into four groups based on the suture technique: modified Krackow technique repair (KT); weave suture repair (WS); mattress suture repair (MS); and composite technique repair (CT), a combination of the modified Krackow and weave suture techniques. Single loading mechanical tests were performed, and the results for each suture technique were compared. Results: Ultimate loads for KT, WS, MS, and CT were 155 ± 45 N, 122 ± 18 N, 92 ± 31 N, and 163 ± 22 N, respectively. KT and CT had significantly higher ultimate loads than the other groups. However, the difference between the KT and CT groups in terms of ultimate load was not significant. Conclusions: Based on the results from the single loading tests, the use of the modified Krackow and composite techniques appeared to provide stronger fixation than that with the use of the weave and mattress sutures with a short overlap length.
Clinical Characteristics and Prognostic Analysis of Multiple Myeloma with Extramedullary Disease: A SEER-Based Study
Authors: Li Guang , Song Yan-Ping , Lv Yao , Li Zhen-Zhen , Zheng Yan-Hua 
Published: January 2021

Background. Extramedullary disease (EMD), an infrequent manifestation of multiple myeloma (MM), can present at diagnosis or develop during the disease course. EMD can be clinically divided into bone-related EMD (EMD-B) and soft tissue-related EMD (EMD-S). The purpose of our study is to investigate the clinical characteristics, survival outcomes, and prognostic factors of MM patients with EMD. Methods. A total of 155 MM patients with EMD were ultimately enrolled in our study by retrieving the Surveillance, Epidemiology, and End Results (SEER) database. The Kaplan–Meier survival curves and log-rank test for overall survival (OS) and myeloma-specific survival (MSS) were conducted to compare each potential variable. Variables with a

p

value <0.1 in the univariate Cox regression were incorporated into the multivariate Cox model to determine the independent prognostic factors, with a hazard ratio (HR) >1 representing adverse prognostic factors. Results. The median age at diagnosis was 63 years old. EMD-B occurred in 99 patients (63.90%), while EMD-S occurred in 56 cases (36.10%). Patients with EMD-S had a significant survival disadvantage in MSS (HR = 1.844, 95% CI 1.117–3.042,

p

= 0.017) and OS (HR = 1.853, 95% CI 1.166–2.942,

p

= 0.009) compared to those with EMD-B. Patients with EMD interval ≤24 months were at higher risk of death than those with EMD at diagnosis in MSS (HR = 1.885, 95% CI 1.175–3.346,

p

= 0.042) and in OS (HR = 1.33, 95% CI 1.119–2.529,

p

= 0.036). Patients with EMD interval >24 months were at a lower risk of death as opposed to those with EMD at diagnosis. Conclusion. Age at MM diagnosis, site of EMD, and time interval from diagnosis to EMD occurrence were independent prognostic factors in MM patients with EMD. EMD-B bore a better prognosis than EMD-S.
Patient Selection and Clinical Outcomes in the STOPDAPT-2 Trial
Authors: Kanenawa Kenji , Yamaji Kyohei , Tashiro Hiroaki , Domei Takenori , Ando Kenji , Watanabe Hirotoshi , Kimura Takeshi 
Published: February 2021

Background:
We sought to evaluate the impact of patient selection for the STOPDAPT-2 trial (Short and Optimal Duration of Dual Antiplatelet Therapy After Everolimus-Eluting Cobalt-Chromium Stent-2) on clinical outcomes in a registry from a single center that participated in the STOPDAPT-2 trial.

Methods:
Among 2190 consecutive patients who underwent percutaneous coronary intervention using stent in Kokura Memorial Hospital during the enrollment period of the STOPDAPT-2 trial, 521 patients had exclusion criteria such as in-hospital major complications, anticoagulant use, or prior intracranial bleeding (ineligible group). Among 1669 patients who met the eligibility criteria (eligible group), 582 were enrolled (enrolled group) and 1087 were not enrolled (nonenrolled group) in the STOPDAPT-2 trial. The primary outcome measure was defined as a composite of cardiovascular death, myocardial infarction, definite stent thrombosis, stroke, or Thrombolysis in Myocardial Infarction major and minor bleeding.

Results:

Compared with the enrolled group, patients in the nonenrolled group more often had high bleeding risk according to the Academic Research Consortium for High Bleeding Risk definition (52.6% versus 41.2%;
P
<0.001) and were frailer according to the Canadian Study of Health and Aging Clinical Frailty Scale (intermediate, 21.4% versus 14.1%; high, 6.4% versus 2.1%;
P
<0.001). The cumulative 1-year incidences of the primary outcome measure, all-cause death, and major bleeding were significantly higher in the nonenrolled group than in the enrolled group (7.2% versus 4.5%,
P
=0.03; 4.1% versus 0.9%,
P
<0.001; and 4.3% versus 2.1%,
P
=0.03, respectively) and in the ineligible group than in the eligible group (21.2% versus 6.3%,
P
<0.001; 9.9% versus 3.0%,
P
<0.001; and 13.5% versus 3.5%,
P
<0.001, respectively).

Conclusions:
Patients who were ineligible, eligible but not enrolled, and enrolled in the STOPDAPT-2 trial had different risk profiles and clinical outcomes, suggesting important implications in applying the trial results in daily clinical practice.
A Tentative Discussion of Some Phenomena Concerning Early Texts of the Shi jing
Authors: Yen (顏世鉉) Shih-hsuan 
Published: January 2021

Abstract
The means by which the Shi jing was transmitted were, primarily, written texts as well as oral recitation and singing, and the textual features formed by these processes were often quite varied. During the pre-Qin period, written texts were frequently “open documents”; therefore, discrepancies among texts do not necessarily indicate distinctions of relative quality. Moreover, texts with different features do not necessarily belong to different textual systems. Therefore, one should adopt a holistic, open-minded attitude toward early textual forms of the Shi jing, and avoid hastily proceeding from discrepancies of format to rash judgments that they belong to different texts.
On Stanzaic Inversion in the Qin feng 秦風 Ode “Sitie” 駟驖 (Iron-Black Horses) in the Anhui University Bamboo Manuscript of the Shi jing 詩經 (Classic of Odes)
Authors: Yuasa (湯淺邦弘) Kunihiro 
Published: January 2021

Abstract
Compared to the odes of the transmitted Mao Shi 毛詩 (Mao-annotated odes) version of the Shi jing 詩經 (Classic of Odes), many odes in the Anhui University bamboo slip Shi jing manuscript exhibit variation in the sequence of their stanzas. Employing the ode “Si tie” 駟驖 (Iron-Black Horses; Mao 127) as a case study, this paper explores variants of stanzaic order to more broadly assess the significance of these new sources.
Reading from, Reading into: The Challenge of the Bamboo Odes
Authors: Saussy (蘇源熙) Haun 
Published: January 2021

Abstract
One of the great fascinations of excavated Chinese texts is the promise of recovering the formative stage of works that later became classics: we might then learn what later editors and interpreters have done to them, and rewrite the intellectual history of early China. But little is inevitable in the history of texts. This paper takes a single short poem from the Anhui Shijing manuscript and reads it both with and against the transmitted Mao edition, using it to imagine various scenarios for the “wonderful life” (Gould) of early Chinese literature.