bluuebunny/crossref_metadata_2025 huggingface dataset:
Modeling of braided wire ropes under tension and torsional loads
Authors: Liu Hui , Wang Hui , Song Bao , Han Xiaoran , Han Bin , Lin Jiayi
Published: October 2020

In view of the urgent need for the safety performance of the braided wire ropes in power grid construction, this study analyzes the mechanical responds of a braided wire rope under the tension and torsional loads. The mechanical responds of the strands under tension, torsional, and tension–torsion loads are studied, and the mechanical response equations of the strands under the above loads are obtained. Furthermore, a mechanical respond model of the rope under the tension and torsional loads is established using the method of rope strand unfolding. The strain of the strands in the axial direction of the rope is used to determine the strain of the braided wire rope. The stress and strain expressions of the whole rope under the tensile–torsional load are obtained. The whole rope test under the tension–torsion load is carried out, and the axial displacement curve under the same load is obtained. The reliability of the mechanical model is verified by comparing the experimental value with the theoretical value.
Association entre la fréquence de consultation des médias d’information et la détresse psychologique chez les femmes enceintes durant la pandémie de COVID-19: Association between news media consulting frequency and psychological distress in pregnant women during the COVID-19 pandemic
Authors: Lemieux Roxanne , Garon-Bissonnette Julia , Loiselle Mathilde , Martel Élodie , Drouin-Maziade Christine , Berthelot Nicolas
Published: October 2020

Objectif:

Examiner l’association entre la fréquence d’utilisation des médias d’information durant la pandémie de COVID-19 et l’ampleur de la détresse psychologique chez les femmes enceintes, considérant les impacts délétères connus de cette détresse sur le développement du fœtus.

Méthode:

Des femmes enceintes habitant la province de Québec ( N = 1014) ont été recrutées en avril 2020 par le biais des médias sociaux, alors qu’un état d’urgence sanitaire prévalait. Les participantes ont été divisées en quatre groupes, selon la fréquence auto-rapportée de consultation des médias d’information (peu ou pas; une fois par jour; plusieurs fois par jour; constante). Elles ont rempli des mesures des symptômes dépressifs, des affects négatifs, des symptômes de stress post-traumatique et d’anxiété spécifique de la COVID-19. Les scores aux instruments se regroupaient sous un facteur unique de détresse psychologique.

Résultats:

Une ANCOVA contrôlant pour l’âge, l’âge gestationnel, le niveau d’éducation, le revenu familial annuel et la présence d’un trouble mental diagnostiqué au moment de la participation à l’étude montre que la fréquence d’exposition aux médias d’information est significativement associée à la sévérité de la détresse psychologique chez les femmes enceintes au moment de la pandémie de COVID-19, F(3,998) = 27,02, p < 0,001, η2 partiel = 0,08. Selon les comparaisons de moyennes a posteriori, des taux plus élevés de détresse psychologique s’observent dès que l’exposition aux médias d’information dépasse une fois par jour (tailles de l’effet entre 0,38 et 0,81).

Conclusions:

Plus les femmes enceintes consultent les médias d’information pendant la pandémie de COVID-19, plus elles sont sujettes à présenter de la détresse psychologique. Les résultats offrent un des premiers appuis empiriques aux recommandations de l’Organisation mondiale de la santé, du gouvernement du Canada et d’associations de psychiatres encourageant la population à limiter sa consultation des médias d’information durant la pandémie de COVID-19.
An estimation of airborne SARS-CoV-2 infection transmission risk in New York City nail salons
Authors: Harrichandra Amelia , Ierardi A Michael , Pavilonis Brian
Published: October 2020

Although airborne transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from person-to-person over long distances is currently thought to be unlikely, the current epidemiological evidence suggests that airborne SARS-CoV-2 infection transmission in confined, indoor spaces is plausible, particularly when outdoor airflow rates are low and when face masks are not utilized. We sought to model airborne infection transmission risk assuming five realistic exposure scenarios using previously estimated outdoor airflow rates for 12 New York City nail salons, a published quanta generation rate specific to SARS-CoV-2, as well as the Wells–Riley equation to assess risk under both steady-state and non-steady-state conditions. Additionally, the impact of face mask-wearing by occupants on airborne infection transmission risk was also evaluated. The risk of airborne infection transmission across all salons and all exposure scenarios when not wearing face masks ranged from <0.015% to 99.25%, with an average airborne infection transmission risk of 24.77%. Wearing face masks reduced airborne infection transmission risk to between <0.01% and 51.96%, depending on the salon, with an average airborne infection transmission risk of 7.30% across all salons. Increased outdoor airflow rates in nail salons were generally strongly correlated with decreased average airborne infection transmission risk. The results of this study indicate that increased outdoor airflow rates and the use of face masks by both employees and customers could substantially reduce SARS-CoV-2 transmission in New York City nail salons. Businesses should utilize multiple layers of infection control measures (e.g. social distancing, face masks, and outdoor airflow) to reduce airborne infection transmission risk for both employees and customers.
Assessing and managing the risks of COVID-19 in the workplace: Applying industrial hygiene (IH)/occupational and environmental health and safety (OEHS) frameworks
Authors: Zisook Rachel E , Monnot Andrew , Parker Justine , Gaffney Shannon , Dotson Scott , Unice Kenneth
Published: October 2020

As businesses attempt to reopen to varying degrees amid the current coronavirus disease (COVID-19) pandemic, industrial hygiene (IH) and occupational and environmental health and safety (OEHS) professionals have been challenged with assessing and managing the risks of COVID-19 in the workplace. In general, the available IH/OEHS tools were designed to control hazards originating in the workplace; however, attempts to tailor them specifically to the control of infectious disease outbreaks have been limited. This analysis evaluated the IH decision-making framework (Anticipate, Recognize, Evaluate, Control, and Confirm (“ARECC”)) as it relates to biological hazards, in general, and to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), specifically. Available IH/OEHS risk assessment and risk management tools (e.g. control banding and the hierarchy of controls) are important components of the ARECC framework. These conceptual models, however, were primarily developed for controlling chemical hazards and must be adapted to the unique characteristics of highly infectious and virulent pathogens, such as SARS-CoV-2. This assessment provides an overview of the key considerations for developing occupational infection control plans, selecting the best available controls, and applying other emerging tools (e.g. quantitative microbial risk assessment), with the ultimate goal of facilitating risk management decisions during the current global pandemic.
The Relationship Between Being Bullied and Addictive Internet Use Among Chinese Rural Adolescents: The Mediating Effect of Adult Attachment
Authors: Guo Jing , Zhu Yingxue , Fang Liming , Zhang Bo , Liu DanXia , Fu Mingqi , Wang Xiaohua
Published: October 2020

Internet addiction among adolescents is an emerging public health issue. The aim of this study was to examine the relationship between being bullied and internet addiction, and further to test the mediating effect of adult attachments on this relationship among Chinese rural adolescents. A total of 1,270 adolescents from three high schools in Henan province were recruited as subjects. Internet addiction was measured by Young’s internet addiction scale. This study showed that the prevalence of being bullied and addictive internet use among the recruited Chinese rural adolescents were 41.97% and 11.34%, respectively. Being bullied was significantly associated with internet addition. Adult attachment was found to mediate the association between being bullied and internet addiction. Higher anxiety attachment and lower close-dependent attachment partially explained the higher risk of internet addiction among the Chinese rural adolescents being bullied. This study suggests that the experience of being bullied can increase the risk of addictive internet use and that this risk can be mediated through adult attachments. This discovery supports the adoption of effective prevention programs to decrease school bullying and to improve adult attachments for adolescents in China and other countries.
Women’s Murders and the Interaction Between Gender (In)equality and Economic Development: A Subnational Analysis in Turkey
Authors: Kavakli Kerim Can
Published: October 2020

Why are women’s murders (femicide) more common in some localities than in others? This paper addresses this question in the context of Turkey, a country with a high and rising number of women’s murders. It uses province-level data between 2010-2017 and the Negative-Binomial estimator to explore the importance of several socio-economic, cultural, and political factors. It finds that a province’s ethnic composition, divorce rate, gender equality in education, and level of economic development are significant predictors of women’s murders. The main result is that whether economic development reduces femicide depends on other factors: in poorer provinces, there is a strong positive correlation between women’s murders and equality in education and divorce rates, but in richer provinces, these associations are significantly weaker. These results are consistent with the idea that economic development may not reduce women’s murders by itself, but it can mitigate the effects of male backlash against women who challenge the status quo. The main policy implication of this study is that pro-development policies may save more lives if they target those poorer provinces that also carry these additional risk factors.
Psychographic Profiling of Adult Tobacco Users and Implications for Mediated Message Tailoring
Authors: Duarte Danielle A. , Choi Kelvin
Published: October 2020

Purpose:

To investigate variations of psychographic profiles in adult tobacco users to inform message tailoring.

Design:

A cross-sectional design used data from the Simmons 2015 National Consumer Study.

Setting:

Data were voluntarily provided by US families through a mail survey on media, products, and services, brands, and attitudes.

Subjects:

US adult tobacco users (N = 4,609).

Measures:

Participants answered questions about general opinion/attitudes and provided demographic and tobacco use information.

Analysis:

A factor analysis was conducted to determine the “best” latent psychographic factor structure based on model fit, factor loadings, and interpretability. A structural equation model was then applied to assess the associations between demographics, tobacco product use, and latent psychographic factors.

Results:

We identified 9 latent psychographic factors: (1) helplessness, (2) happiness, (3) achievements, (4) religion, (5) interest in art and culture, (6) conscience, (7) conformity, (8) family indulgence, and (9) creativity. Endorsement of these factors varied by demographics and tobacco product use. E.g. low income tobacco users showed stronger endorsement for “helplessness” (Adjusted Standardized Regression Coefficient [ASRC]: 0.42; 95% CI: 0.33, 0.51) and “religion” (ASRC: 0.24; 95% CI: 0.14, 0.33). Less educated tobacco users showed stronger endorsement for “conformity” (ASRC: 0.16; 95% CI: 0.07, 0.24). Young adults had significant positive associations for “achievements” (ASRC: 0.57; 95% CI: 0.48, 0.67).

Conclusion:

Psychographic profiles of tobacco users vary by demographics and product use. Tailored anti-tobacco media campaigns to specific disparity groups matching their psychographic profiles may improve message effectiveness and reduce tobacco use disparities.
Increase in visceral adipose tissue in a woman living with HIV after introduction of integrase strand transfer inhibitor
Authors: Piacentini Daniela , Lanzafame Massimiliano , Rizzardo Sebastiano , Chiesi Sheila , Lattuada Emanuela , Mehrabi Sara , Zamboni Giulia , Mazzi Romualdo , Tacconelli Evelina , Vento Sandro
Published: October 2020

Integrase strand transfer inhibitors (INSTIs) are a class of antiretroviral drugs with high virologic efficacy and excellent tolerability. Recent evidence showed a possible link of dolutegravir-based regimens with weight gain, and a relationship between raltegravir use and changes in adipose tissue density and metabolic abnormalities, with an increased cardiovascular risk, has been suggested. We describe a case where dolutegravir monotherapy led to a decrease in adipose tissue density.
Activistes féministes: Francophone Women Writers and International Human Rights
Authors: Rice Alison
Published: October 2020

Several prominent contemporary Francophone women writers have embraced activism in compelling forms. In her written creations, Maïssa Bey from Algeria has continually called attention to the lack of women’s rights in her homeland; she has also initiated writing workshops for women to reflect and express themselves. Fatou Diome, who left Senegal for Strasbourg, has shed light in her work on racism and sexism that African immigrants often face in Europe, and she has created an association in her homeland to help individuals become financially solvent. Yanick Lahens from Haiti has similarly devoted herself to activist endeavours on her island, including co-founding a library and working with youth after the earthquake. As these authors seek to create compassion through writing, they also promote empathy through their engagement outside the text, empowering people of various backgrounds by providing them with literacy skills, business acumen, and a sense that their story matters.
Older adults’ eHealth literacy and the role libraries can play
Authors: Lin Zhenping , Zhang Yao , Matteson Miriam , Li Xiaoming , Tu Xiaoming , Zhou Yeqin , Wang Jing
Published: October 2020

This study examined the eHealth literacy, health knowledge, health behavior of a population of older Chinese adults, and the impact of using library or community activities for health information seeking. A survey was conducted among 215 participants 45 years or older. Data were analyzed using chi-square test, one-way analysis of variance, bivariate correlation, and multiple regression. The results showed that participants who were urban residents, non-farm workers, and had 9 years of education or more were more likely to use the library or community activities for health information seeking. Health behavior had a significant relationship with eHealth literacy and health knowledge. Both eHealth literacy and health knowledge showed a significant positive relationship with using the library or community activities for health information. These results support the idea that libraries play an important role in providing high-quality eHealth literacy services to enhance healthy behavior and health outcomes in their communities.
Next stop in the treatment of refractory systemic lupus erythematosus: B-cell targeted combined therapy
Authors: Bela Margarida Matos , Espinosa Gerard , Cervera Ricard
Published: October 2020

Background: Systemic lupus erythematosus (SLE) is an autoimmune condition with a wide spectrum of clinical manifestations encompassing most organs and systems. Its treatment approach includes different immunomodulatory treatments, of which B-cell targeted therapies are part of. Rituximab (an anti-CD20 antibody) had encouraging results in observational studies but failed when tested in clinical trials. It is theorized that this could have been partially due to BAFF upregulation, leading to rituximab failure. Therefore, targeting BAFF with belimumab after rituximab therapy, may have a synergic effect in SLE. Objective: We review the available observational data regarding sequential rituximab/belimumab therapy in SLE patients. Results: Twenty-four patients from 6 studies were included. The results suggest a benefit with this combined therapy, with reduction of the mean SLEDAI. However, there was significant drug regimen and patient selection heterogeneity. Conclusion: Further randomized clinical trials are needed to examine this drug sequencing protocol in SLE patients.
Comparative studies on carbon fiber reinforced composites based on trifunctional epoxy resin and commercial epoxy resin
Authors: Raj Mahendrasinh , Raj Lata , Maheta Jaykumar , Patel Smit
Published: October 2020

The present work focuses on comparative properties of β-naphthol based trifunctional epoxy resin and commercial epoxy resin. Reaction of β-naphthol, formaldehyde and epichlorohydrin forms trifunctional epoxy resin. β-Naphthol based trifunctional epoxy resin characterized by FT-IR, elemental analysis (C, H, N, O analyzer), epoxy equivalent weight (EEW), weight average molecular weight [Formula: see text], viscosity, rise in viscosity, hydrolysable chlorine content and volatile content. β-Naphthol based trifunctional epoxy resin cured by five different hardeners and used as matrix material for carbon reinforced composites. Composites were characterized by their mechanical properties, chemical resistance and thermal properties. Results showed excellent chemical and thermal resistance. All results were compared against commercially available epoxy resin (Diglycidyl ether of bisphenol-A based epoxy resin having EEW of 400). Results showed that β-naphthol based trifunctional epoxy resin was superior than commercial epoxy resin.
Palliative Medical Management of Inoperable Malignant Bowel Obstruction With “Triple Therapy”: Dexamethasone, Octreotide, and Metoclopramide
Authors: Wey Winston , Mian Moeena , Calabrese Rebecca , Hansen Eric , Walter Michelle , Wang Chong , Miller Austin , Case Amy A.
Published: October 2020

Context:

Malignant bowel obstruction (MBO) is a complication of advanced malignancy. For inoperable patients, symptoms are often treated using analgesics, anticholinergics, and anti-emetics. There are, however, few published guidelines for the medical management of MBO.

Objective:

To measure the effect of the combination of dexamethasone, octreotide, and metoclopramide (“triple therapy”) in patients with MBO, compared to patients who received none of the 3 medications (“no drug therapy”).

Methods:

A retrospective cohort study of patients with MBO admitted in a single-center comprehensive cancer center. Patients who received dexamethasone, octreotide, and metoclopramide during their hospitalization for treatment of inoperable MBO were selected for analysis. Patients were excluded if they received a venting gastric tube. Rate of de-obstruction as well as time to de-obstruction were measured.

Results:

There were 20 patients identified who received all 3 drugs of interest, and 29 patients identified who received none of the 3 medications. There was no statistically significant difference in rates of de-obstruction between the 2 groups, though there was a non-significant trend toward patients who received triple therapy were more likely to reach de-obstruction, compared to patients who had no drug therapy (95% vs. 83%, p = 0.379); there was no significant difference in adjusted analysis.

Conclusion:

In patients with inoperable MBO, there was no statistically significant difference in rates of de-obstruction with triple drug therapy compared to patients who received none of the 3 drugs, though the study may not have been powered to detect a difference and further investigation is warranted.
The Association of Advance Care Planning Documentation and End-of-Life Healthcare Use Among Patients With Multimorbidity
Authors: McDermott Cara L. , Engelberg Ruth A. , Khandelwal Nita , Steiner Jill M. , Feemster Laura C. , Sibley James , Lober William B. , Curtis J. Randall
Published: October 2020

Purpose:

Multimorbidity is associated with increased intensity of end-of-life healthcare. This association has been examined by number but not type of conditions. Our purpose was to understand how intensity of care is influenced by multimorbidity within specific chronic conditions to provide guidance for interventions to improve end-of-life care for these patients.

Methods:

We identified adults cared for in a multihospital healthcare system who died between 2010–2017. We categorized patients by 4 primary chronic conditions: heart failure, pulmonary disease, renal disease, or dementia. Within each condition, we examined the effect of multimorbidity (presence of 4 or more chronic conditions) on hospital and ICU admission in the last 30 days of life, in-hospital death, and advance care planning (ACP) documentation >30 days before death. We performed logistic regression to estimate associations between multimorbidity and end-of-life care utilization, stratified by the presence or absence of ACP documentation.

Results:

ACP documentation >30 days before death was associated with lower odds of in-hospital death for all 4 conditions both in patients with and without multimorbidity. With the exception of patients with renal disease without multimorbidity, we observed lower odds of hospitalization and ICU admission for all patients with ACP >30 days before death.

Conclusions:

Patients with dementia and multimorbidity had the highest odds of high-intensity end-of-life care. For patients with dementia, heart failure, or pulmonary disease, ACP documentation >30 days before death was associated with lower likelihood of in-hospital death, hospitalization, and ICU use at end-of-life, regardless of multimorbidity.
Severe and prolonged hypocalcemia after a single dose of denosumab for metastatic breast cancer with diffuse bone involvement without prior calcium/vitamin D supplementations
Authors: Uhm So Jung , Hall James A , Herrington Jon D
Published: October 2020

Introduction

Denosumab is a human monoclonal antibody antiresorptive agent used for the treatment of bone metastasis in different cancer types, including breast cancer. Hypocalcemia is a known adverse effect of denosumab, and early supplementation plays an important role in the prevention and management of hypocalcemia.

Case report

A 63-year-old female with stage IV estrogen receptor-positive breast cancer with diffuse bone metastasis experienced severe, prolonged hypocalcemia following a single dose of denosumab. The patient also had several risk factors for denosumab-associated hypocalcemia. Despite not receiving additional doses of denosumab, the patient required multiple hospitalizations and outpatient infusions of calcium to resolve her symptomatic hypocalcemia. Management and outcome: Severe hypocalcemia associated with denosumab can be prevented or mitigated by recognizing the risk factors for hypocalcemia and supplementing with vitamin D/calcium. Proposed risk factors include poor renal function, hypoparathyroidism, insufficient calcium intake, and diffuse metastatic bone disease. Studies suggest that early supplementation before starting denosumab can lower this risk.

Discussion

Several cases of severe hypocalcemia associated with denosumab have been reported. However, to the authors’ knowledge, this is the first report that highlights the importance of early vitamin D/calcium supplementations for a patient with diffuse metastatic bone disease with pre-existing low levels of calcium.
Complete bilateral ophthalmoplegia in malignant intracranial hypertension in a child
Authors: Interlandi Emanuela , Pellegrini Francesco , De Luca Marco , Cerullo Giovanni , De Falco Arturo , De Marco Rocco , Tortori Achille , Lee Andrew G.
Published: October 2020

Purpose:

To describe a case of fulminant idiopathic intracranial hypertension (IIH) in a child with “malignant” presentation.

Case report:

A 16-year-old, previously healthy, girl presented with bilateral visual loss and bilateral global limitation of eye movements in the absence of headache. Extensive laboratory evaluation for infectious, inflammatory, autoimmune, and neoplastic conditions was negative. Magnetic resonance imaging (MRI) of the brain and lumbar puncture findings were consistent with a diagnosis of IIH. Extraocular motility improved in the next few days as well as optic disc edema but visual acuity remained poor.

Conclusion:

The authors believe that the acute, severe, and fulminant (“malignant”) presentation with markedly elevated intracranial pressure may produce the unique presentation of severe vision loss and bilateral complete ophthalmoplegia. Interestingly, there was no headache. To our knowledge this is the first such case to be reported in the English language ophthalmic literature.
Weight stigma is associated with provider-patient relationship factors and adherence for individuals with hypothyroidism
Authors: Snyder Morgan , Haskard-Zolnierek Kelly , Howard Krista , Hu Yueqin
Published: October 2020

The goal of this study was to examine weight stigma experiences during medical visits as related to provider-patient relationship factors and adherence among individuals with hypothyroidism. A total of 362 participants recruited via social media participated in an online survey. Regression and mediation analyses indicated that weight stigma was negatively associated with adherence; this relationship was mediated by decreased trust in provider, less perceived provider empathy, and lower provider-patient depth-of-relationship. Structural equation modeling with BMI controlled revealed that weight stigma is associated with worsened provider-patient relationship and adherence. Findings suggest the importance of eliminating weight stigma experiences for patients.
Psychosocial stressors among Ghanaians in rural and urban Ghana and Ghanaian migrants in Europe
Authors: Awuah Raphael Baffour , de-Graft Aikins Ama , Dodoo F Nii-Amoo , Meeks Karlijn AC , Beune Eric JAJ , Klipstein-Grobusch Kerstin , Addo Juliet , Smeeth Liam , Bahendeka Silver K , Agyemang Charles
Published: October 2020

Psychosocial stressors have significant health and socio-economic impacts on individuals. We examined the prevalence and correlates of psychosocial stressors among non-migrant and migrant Ghanaians as there is limited research in these populations. The study was cross-sectional and quantitative in design. A majority of the study participants had experienced stress, discrimination and negative life events. Increased age, female sex, strong social support and high sense of mastery were associated with lower odds of experiencing psychosocial stressors in both populations. Interventions should be multi-level in design, focusing on the correlates which significantly influence the experience of psychosocial stressors
Understanding language teacher wellbeing: An ESM study of daily stressors and uplifts
Authors: Gregersen Tammy , Mercer Sarah , MacIntyre Peter , Talbot Kyle , Banga Claire Ann
Published: October 2020

This study focuses on understanding language teachers’ lived experiences of their stressors and positive uplifts from a holistic perspective covering their professional lives in school, their personal lives beyond, and the connection between the two. The aim was to explore the nature of teachers’ experiences of stress and how they spilled over from work into home domains. We also were keen to understand the dynamics of their experiences of stress and how their perception of daily stressors was related to their overall sense of wellbeing as well as their life and chronic stressors. The data were collected via a specially created app, which collected survey data and experience sampling method (ESM) data from language teachers across the globe. Teachers’ wellbeing was investigated using the PERMA Profiler (Butler & Kern, 2016), their personality using Goldberg’s (1992) Big Five measurement tool, and a questionnaire on chronic stressors and stressful life events. From a larger sample ( n = 47), a set of 6 case studies of teachers who scored highly for wellbeing and those who scored low on wellbeing was examined to explore in depth and across time, the relationships between overall wellbeing, chronic stressors and stressful life events, the experience of daily stressors, and perceptions of health. The findings point to the complexity of the relationships between stress, wellbeing, and health as well as the dynamism of stress and the relationships between stress experienced in the workplace and at home. The study has important implications for research in this area and reveals the merits of working with this innovative data collection tool.
A new physical parameter identification method for shear frame structures under limited inputs and outputs
Authors: Liu Jing-Liang , Yu An-Hua , Chang Chia-Ming , Ren Wei-Xin , Zhang Jing
Published: October 2020

A new physical parameter identification method with a name of EKPF-LS is proposed for shear frame structures under limited inputs and outputs by a combination of extended Kalman particle filter (EKPF) and least square (LS) algorithm. The basic principle of EKPF-LS is to establish the proposed distribution function of the particle filter through EKF-LS. In this method, EKPF is introduced to get rid of the restriction of Gaussian white noise model and reduce the linearization error caused by EKF. Meanwhile, LS is utilized to address the problem of unmeasured excitation estimations. The effectiveness and accuracy of the proposed EKPF-LS method is verified by a numerical example of a four-story hysteretic shear frame under an earthquake excitation and an experimental test of a four-story shear type frame using Gaussian white noise and sine sweep signal as excitations, respectively. Gaussian colored noises are then added to the solved and measured response signals in the numerical example and experimental test, respectively. The results demonstrate that the proposed method can identify the stiffness of shear frame structures effectively and is superior to the existed EKF-LS approach when the structural system is nonlinear structural system or Colored noise model.
Theoretical and numerical studies of the slip resistance of main cable clamp composed of an upper and a lower part
Authors: Miao Rusong , Shen Ruili , Wang Lu , Bai Lunhua
Published: October 2020

Cable clamps are important connection members widely used in suspension bridges and cable structure buildings. The clamps are usually tightened on the cable through pre-stressed bolts and resist cable axial component of the external load by friction. Current relevant standards provide slip resistance formulas for anti-slip design of the clamps but are conceptive and simple, lacking explicit and quantitative mechanical derivation. This paper develops an analytical model and proposes a novel slip failure criterion based on the slippage amount, aiming at understanding the force state and estimating the slip resistance of the main cable clamp composed of an upper and a lower part. Finite element analyses then validate that the analytical model can correctly reveal the influences of the multiple factors including hanger tensile force and orthotropic friction on the force state of the cable-clamp system. Moreover, the original Coulomb-friction-law-based slip resistance formula is briefly revised by introducing a partial factor in order to take the nonlinearity of the connection system into account. The revised slip resistance formula implies its promising applicability in obtaining reliable and flexible solution to anti-slip problem of the clamp with different level of safety redundancy.
Hole-to-hole variations in coupled flow and spray simulation of a double-layer multi-holes diesel nozzle
Authors: Wang Chuqiao , Adams Moro , Luo Tong , Jin Tianyu , Luo Fuqiang , Gavaises Manolis
Published: October 2020

In diesel engines, double-layer multi-holes nozzles contribute significantly in making spray injection uniform in both the circumferential and axial directions; they further ensure that minimal or no interactions are encountered among the spray jets emerging from the nozzle holes and positively affect fuel atomisation and enhance mixing during engine operation. In this study, the variation in internal flow characteristics and spray patterns from the upper and the lower layer nozzle holes were investigated experimentally and computationally. A double-layer 8-hole heavy-duty diesel engine injector nozzle was utilised for the characterisation of hole-to-hole variation on spray formation. The actual nozzle geometry was derived from X-ray scans obtained at the third generation X-ray imaging and biomedical beamline station in SSRF, revealing all geometrical differences between the individual injection holes. The momentum fluxes from each holes were obtained together with spray tip penetration under non-evaporating conditions. These data were used to validate the computational fluid dynamics (CFD) model suitable to describe the relevant flow processes. Initially, an Eulerian-Eulerian two-phase flow model was utilised to predict the internal nozzle flow under cavitating conditions. This model was weakly coupled with a Lagrangian spray model predicted the subsequent atomisation and penetration of all individual spray plumes. The results show that cavitation development within the upper layer holes is more intense than those formed within the lower layer nozzle holes; this is leading to higher injection rates from the lower layer nozzle holes that they also exhibit less cycle-to-cycle variations in the observed spray patterns.
#artoninstagram: Engaging with art in the era of the selfie
Authors: Piancatelli Chiara , Massi Marta , Vocino Andrea
Published: October 2020

This study aims to understand how people engage with art in the era of selfies, digital devices, and social media. It examines the audience experience of an art exhibition, where visitors are encouraged to use social media to share their art experience, to understand how such an approach might change the nature of visitor engagement with art. Arguably, selfies taken in the art space enrich the visitor’s experience and engagement with art and function as co-creational, empowering, and authentic marketing tools for museums. Data for this research were collected through non-participant observation (ethnography) and netnography at the National Gallery of Victoria, in Melbourne, Australia. The results show that rather than promoting disengagement from the art piece, selfies in the art space become “networked material-discursive entanglements” empowering art consumers to co-create value and arts organizations to reduce their distance from consumers and reproduce the iconic authenticity of the artwork in the virtual space. The article contributes to selfie theory by overcoming the traditional view of selfies as manifestation of narcissistic self-expression. Instead, it promotes an interpretation of selfies as an empowering and democratizing means used by art consumers to develop narratives and identity projects in a context such as the museum where traditionally the development of the narrative is apanage of an elite. A further contribution provided by this research stems from the identification of clusters of visitors (i.e., reality escapers, art lovers, photoholics, and selfie lovers), placed on a continuum of value co-creation, which arts administrators need to be conscious of as they enter a more dynamic era of art consumption. By outlining managerial implications, this study provides an initial reflection on how arts managers can navigate the emerging era of the selfie in the museum context.
Nursing’s Response to the Executive Order to Advance American Kidney Health
Authors: Reid Kimone R. Y. , Queheillalt Suzanne , Martin Tamara
Published: October 2020

The state of American kidney health is currently under the microscope. In the United States, approximately 20,000 persons advance to end-stage renal disease annually. Trends indicate accelerating increases in cost of care and a high mortality rate among patients with end-stage renal disease, with only 57% of patients surviving after 3 years. An executive order by the White House has placed the transformation of kidney care at the forefront of the country’s health care agenda. The order focuses on key issues including improving outcomes, reducing treatment-related expenditures and increasing kidney donations. Mobilization of health care resources directed toward policymaking, workforce growth and development, and research will be critical to effectively achieve this executive order. Nursing’s response, as the health care profession with the most members, will be crucial to achieving response implementation and success of the order. This article describes immediate and future actions including policy, leadership, clinical, educational, and research initiatives that the nursing profession should take to advance kidney health. It calls for specific actions by nursing and focuses on nursing organizations, nursing research, quality improvement initiatives, nursing innovation, advanced practice nursing, and the nephrology and transplant nursing workforce in order to improve kidney health nationally. The impact of the SARS-CoV-2 pandemic on kidney health and the implications for the profession of nursing are outlined. Although there are still many unknowns about the pandemic, nursing’s voice is necessary to ensure the ongoing delivery of high-quality care.
A Real American Hero: WWE Wrestling from American Exceptionalism to Commercial Transnationalism
Authors: Koh Wilson
Published: October 2020

Major World Wrestling Entertainment storylines in the video streaming era problematize its historically central Real American hero-figure. This article considers this shift against the concepts of American exceptionalism, the global franchising of sport, and commercial nationalism. It argues that the shift reflects WWE’s new foci on domestic and global markets combined with the intensified cross-border media flows characterizing the streaming video marketplace. A new form of commercial nationalism—a commercialized transnationalism—results.
Five lncRNAs Associated With Prostate Cancer Prognosis Identified by Coexpression Network Analysis
Authors: Gong Xiaoyong , Ning Bobin
Published: October 2020

Prostate cancer (PCa) is a highly malignant tumor, with increasing incidence and mortality rates worldwide. The aim of this study was to identify the prognostic lncRNAs and construct an lncRNA signature for PCa diagnosis by the interaction network between lncRNAs and protein-coding genes (PCGs). The differentially expressed lncRNAs (DElncRNAs) and PCGs (DEPCGs) between PCa and normal prostate tissues were screened from The Cancer Genome Atlas (TCGA) database. The DEPCGs were functionally annotated in terms of the enriched pathways. Weighted gene co-expression network analysis (WGCNA) of 104 PCa samples identified 15 co-expression modules, of which the Turquoise module was negatively correlated with cancer and included 5 key lncRNAs and 47 PCGs. KEGG pathway analyses of the core 47 PCGs showed significant enrichment in classic PCa-related pathways, and overlapped with the enriched pathways of the DEPCGs. LINC00857, LINC00900, LINC00908, LINC00900, SNHG3 and FENDRR were significantly associated with the survival of PCa and have not been reported previously. Finally, Multivariable Cox regression analysis was used to establish a prognostic risk formula, and the patients were accordingly stratified into the low- and high-risk groups. The latter had significantly worse OS compared to the low-risk group (P < 0.01), and the area under the receiver operating characteristic curve (ROC) of 14-year OS was 0.829. The accuracy of our prediction model was determined by calculating the corresponding concordance index (C-index) and risk curves. In conclusion, we established a 5-lncRNA prognostic signature that provides insights into the biological and clinical relevance of lncRNAs in PCa.
MicroRNA-377 Counteracts With Cancer Stem Cell Phenotypes and Epithelial Mesenchymal Transformation by Targeting ZEB2 in Colon Cancer
Authors: Shayimu Paerhati , Yusufu Aikeremu , Rehemutula Aizimaiti , Redati Darebai , Jiapaer Rexida , Tuerdi Rousidan
Published: October 2020

Dysregulated microRNAs (miRNAs) have been implicated in the pathogenic processes of colon cancer. Epithelial mesenchymal transition (EMT) promotes metastatic progression and cancer stem cells are closely involved in colon cancer proliferation and metastasis. Functional effects of miR-377 on colon cancer stem cell phenotypes and EMT were then determined in the present study. Firstly, reduced miR-377 was found in colon cancer tissues and cell lines. Results from flow cytometry, sphere formation and western blot assays showed that miR-377 knockdown increased number of ALDH+ cells and promoted sphere formation ability. Moreover, cell migration/invasion and EMT of colon cancer cells were suppressed by miR-377 over-expression. On the contrary, miR-377 mimics caused the reversed results. ZEB2 (zinc finger E box-binding homeobox 2) was then validated as a binding target of miR-377. ZEB2 over-expression reversed the inhibitory abilities of miR-377 on cancer stem cell phenotypes, EMT, migration and invasion. In conclusion, miR-377 regulates cancer stem cell phenotypes and EMT in colon cancer cells via regulation of ZEB2, suggesting a new therapeutic strategy for colon cancer treatment.
DARE: A decentralized association rules extraction scheme for embedded data sets in distributed IoT devices
Authors: Alencar Márcio , Barreto Raimundo , Fernandes Horácio , Souto Eduardo , Pazzi Richard
Published: October 2020

In the context of smart home, it is very important to identify usage patterns of Internet of things (IoT) devices. Finding these patterns and using them for decision-making can provide ease, comfort, practicality, and autonomy when executing daily activities. Performing knowledge extraction in a decentralized approach is a computational challenge considering the tight storage and processing constraints of IoT devices, unlike deep learning, which demands a massive amount of data, memory, and processing capability. This article describes a method for mining implicit correlations among the actions of IoT devices through embedded associative analysis. Based on support, confidence, and lift metrics, our proposed method identifies the most relevant correlations between a pair of actions of different IoT devices and suggests the integration between them through hypertext transfer protocol requests. We have compared our proposed method with a centralized method. Experimental results show that the most relevant rules for both methods are the same in 99.75% of cases. Moreover, our proposed method was able to identify relevant correlations that were not identified by the centralized one. Thus, we show that associative analysis of IoT device state change is efficient to provide an intelligent and highly integrated IoT platform while avoiding the single point of failure problem.
The reliability and accuracy of the Garmin Vector 3 power pedals
Authors: Dickinson Tom , Wright James
Published: October 2020

The aims of this study were to 1) investigate the reliability of the Garmin Vector 3 (V3) pedals, and 2) compare power output and cadence between the Lode Excalibur Sport ergometer and the V3 pedals. Seven male cyclists completed 6 × 2-min sub-maximal cycling stages (100, 150, 200, 250, 300 and 350 W) and 2 × 10-s maximal sprints, completed on two occasions within seven days. A Mann-Whitney U test identified significant differences between the Lode Excalibur Sport and the V3 pedals at 150–350 W and during all-out sprinting ( P < 0.05) with a mean relative difference during sub-maximal cycling of 1.8%. Results also suggested there was no significant differences between the Lode Excalibur Sport and V3 pedals for cadence at all power outputs tested ( P > 0.05), with a mean relative difference of 0.2%. Results suggest that the V3 pedals are reliable for both power output and cadence with a coefficient of variation of <5.05% and <3.87%, respectively. Furthermore, the technical error of measurement for power output was 2.4 W–5.3 W between 100 W and 350 W, and <8.04 rev.min−1 for cadence at all power outputs tested. It is suggested that the V3 pedals are reliable and accurate during sub-maximal testing; however, the V3 pedals over-estimate power output during all-out sprinting.
A new model of third generation artificial turf degradation, maintenance interventions and benefits
Authors: Fleming Paul Richard , Watts Charlie , Forrester Stephanie
Published: October 2020

High performing and safe outdoor third generation (3G) artificial turf (AT) fields demand high quality initial design and construction coupled with a comprehensive maintenance aftercare regime. However, in many cases maintenance of AT fields suffers from either a low-cost inexpert approach, or a one-size-fits-all generic approach based on general guidance with little to no evidence of effectiveness. Little previous research has addressed fundamental questions regarding how 3G AT systems degrade or have provided evidence of the effectiveness of maintenance interventions. Maintenance techniques currently utilised can be grouped into four separate categories (grooming, cleaning, decompaction and infill top-ups). The maintenance tools and processes for each category have been developed empirically through experience, mainly in response to qualitative observations with little quantitative evidence.

This paper reports on a unique body of quantitative evidence of specific effects of maintenance interventions, on third generation AT surfaces (3G), collected over the past several years in collaboration with a major UK sports surface maintenance contractor. In addition, the data contributes new and robust evidence of the rate at which 3G surfaces can ‘lose’ quantities of performance infill corroborated by the rate at which fields were topped up to maintain appropriate infill depths. A new quantified pitch degradation and maintenance benefits model is presented explaining 3G AT system degradation factors and mechanisms, their links to changes in system performance and the magnitudes of change effected by specific maintenance techniques.

The new model is of direct benefit to both researchers and practitioners impacting on future best practice for assessing and maintaining the safety and performance of 3G AT.
“That’s your right as a human isn’t it?” The emergence and development of leading as a socially-just practice in early childhood education
Authors: Gibbs Leanne
Published: October 2020

This article reports on an Australian study of the emergence and development of leadership that supports children’s rights and their access to high-quality early childhood education (ECE). The qualitative study contributes to a growing body of research on ECE leadership practice; specifically, the area of site-based leadership cultivation and development. Complexity leadership theory was used to situate leadership within the Australian ECE context; accounting for the competing purposes of high-quality education programs and for the complex array of practices required for leadership to be effective. Additionally, the theory of practice architectures was employed as an analytical tool. The theory of practice architectures helped to identify socially-just leadership practices that uphold children’s rights, and to understand the organisational arrangements that enabled and constrained those practices within each site. Study findings illuminate how leadership can be cultivated and developed in ECE. As a result of the study, organisations are encouraged to create the cultural-discursive, material-economic and social-political arrangements that shape leadership within ECE sites. The paper argues for the development of ECE leadership as a socially-just practice, that upholds the rights of children and their access to high-quality early childhood education.