bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Defects Localization Algorithm Based on the Lamb Wave of Plate Structure
Authors: Deng Fei , Chen Honglei 
Published: September 2020

Abstract
Defect imaging algorithms play an important role in Lamb waves based researches of nondestructive testing (NDT) and structural health monitoring (SHM). In classical algorithms, the location or distribution of defects is visualized through mapping the amplitude or phase information of signals gotten by multiple inspection pairs from the time domain to every discrete spatial grid of plates. It is time-consuming in the detection of plates with large size and many transducers. Transforming the defect imaging problem into a scattering source search problem, an intelligent defect localization algorithm was proposed for NDT and SHM with the Lamb waves and sparse array. In the algorithm, the elliptic trajectory-dependent individuals of every inspection pair were extracted first, then the defect position was identified by analyzing the distribution of individuals these located at the intersection of multiply elliptic trajectories. Considering the fuzzy and diversity characteristics in the detection of defects, a fuzzy control parameter and an adaptive individual updating strategy based on the k-means algorithm were introduced to ensure the robustness of the algorithm. The effectiveness of the proposed algorithm was verified by numerical models and experiments. The influences of the fuzzy control parameter and the individual updating strategy on the performance of the algorithm were analyzed furthermore.
Dynamic Analysis of Low-Pressure Steam Turbine Last Stage Fir-Tree Root Blade
Authors: Bhamu Rajesh K. , Shukla Aakash , Sharma Satish C. , Harsha S. P. 
Published: September 2020

Abstract
In the present study, the dynamic behavior of the last stage low-pressure steam turbine blade with fir-tree root at different conditions of blade root flank faces and their interfaces with rotor groove have been analyzed. Modal analysis has been done using a finite element approach to evaluate natural frequencies and evaluation of Campbell diagram generated under these conditions. For this, both healthy and defective blade have been taken. Since the variable crack size of fir-tree root flank has been taken, the excitation pattern has been evaluated due to stiffness variation of the cracked blade. This analysis provides the basis of excitation pattern of cracked blades due to inherent character and critical stressed zone. The outcome of this study forms the guidelines and checks during the fitting of blades in rotor assembly and its checks during health audit, overhaul, overspeed balancing test, and frequency turning.
aDolescent and prEconception health peRspectiVe of Adult Non-communicable diseases (DERVAN): protocol for rural prospective adolescent girls cohort study in Ratnagiri district of Konkan region of India (DERVAN-1)
Authors: Patil Suvarna , Patil Netaji , Joglekar Charudatta , Yadav Arvind , Nilawar Anup , Banavali Ulka , Bhat Rohit , Dombale Vijay , Warpe Bhushan , Mohite Rachana , Joshi Kiran 
Published: September 2020

IntroductionPrecise impact of nutritional insufficiencies in adolescence as a risk factor for non-communicable diseases (NCD) in later life as adults remains largely unknown.We are conducting research into the effects of nutrition on adolescent girls of Ratnagiri district by a prospective cohort study (aDolescent and prEconception health peRspectiVe of Adult Non-communicable diseases cohort). Our study focuses on the physical health, nutritional parameters and cognitive profiles of adolescent girls, during the prenatal and postnatal period and we aim to follow this cohort and their offspring for 20 years.Methods and analysisCohort recruitment began in June 2019. Our aim is to recruit more than 1500 adolescent girls, age 16–18 years, over a period of 3 years. The recruit’s cognition, diet and physical activity will be recorded. The following investigations will be performed: body composition by anthropometry and bioimpedence, and blood pressure, fasting blood sample to measure glucose, insulin, lipids, micronutrients and hormones, abdominal ultrasonography to measure liver, pancreas and kidneys.A biorepository has been created for long-term storage of blood, urine and saliva samples for future analysis. By this longitudinal study, we aim to identify the effects of malnutrition on the behavioural and biological measures in adolescent subjects and evaluate if these are associated with the onset of NCDs in adulthood.Ethics and disseminationInstitutional Ethic Committee (IEC) of BKL Walawalkar Rural Medical College and Hospital has granted the permission to carry out the study. IEC is registered with Government of India. Its registration code is EC/755/INST/MH/2015/RR-18. It is not a clinical trial but as required we have also registered the study on Clinical Trial Registry of India (CTRI). The registration code is CTRI/2019/04/018453.Appropriate written informed consent and assent are obtained from the parents and the adolescent girls, respectively. We plan to publish our results in peer-reviewed journals.
Yoga programme for type-2 diabetes prevention (YOGA-DP) among high risk people in India: a multicentre feasibility randomised controlled trial protocol
Authors: Chattopadhyay Kaushik , Mishra Pallavi , Singh Kavita , Harris Tess , Hamer Mark , Greenfield Sheila Margaret , Lewis Sarah Anne , Manjunath Nandi Krishnamurthy , Nair Rukamani , Mukherjee Somnath , Harper David Ross , Tandon Nikhil , Kinra Sanjay , Prabhakaran Dorairaj 
Published: September 2020

IntroductionA huge population in India is at high risk of type-2 diabetes (T2DM). Physical activity and a healthy diet (healthy lifestyle) improve blood glucose levels in people at high risk of T2DM. However, an unhealthy lifestyle is common among Indians. Yoga covers physical activity and a healthy diet and can help to prevent T2DM. The research question to be addressed by the main randomised controlled trial (RCT) is whether a Yoga programme for T2DM prevention (YOGA-DP) is effective in preventing T2DM among high risk people in India as compared with enhanced standard care. In this current study, we are determining the feasibility of undertaking the main RCT.InterventionYOGA-DP is a structured lifestyle education and exercise programme. The exercise part is based on Yoga and includes Shithilikarana Vyayama (loosening exercises), Surya Namaskar (sun salutation exercises), Asana (Yogic poses), Pranayama (breathing practices) and Dhyana (meditation) and relaxation practices.Methods and analysisThis is a multicentre, two-arm, parallel-group, feasibility RCT with blinded outcome assessment and integrated mixed-methods process evaluation. Eligible participants should be aged 18–74 years, at high risk of T2DM (fasting plasma glucose level 5.6–6.9 mmol/L) and safe to participate in physical activities. At least 64 participants will be randomised to intervention or control group with final follow-up at 6 months. Important parameters, needed to design the main RCT, will be estimated, such as SD of the outcome measure (fasting plasma glucose level at 6-month follow-up), recruitment, intervention adherence, follow-up, potential contamination and time needed to conduct the study. Semistructured qualitative interviews will be conducted with up to 20–30 participants, a sample of those declining to participate, four YOGA-DP instructors and around eight study staff to explore their perceptions and experiences of taking part in the study and of the intervention, reasons behind non-participation, experiences of delivering the intervention and running the study, respectively.Ethics and disseminationEthics approval has been obtained from the following Research Ethics Committees: Faculty of Medicine and Health Sciences, University of Nottingham (UK); Centre for Chronic Disease Control (CCDC, India); Bapu Nature Cure Hospital and Yogashram (BNCHY, India) and Swami Vivekananda Yoga Anusandhana Samsthana (S-VYASA, India). The results will be widely disseminated among key stakeholders through various avenues.Trial registration numberCTRI/2019/05/018893.
‘We just look at the well-being of the baby and not the money required’: a qualitative study exploring experiences of quality of maternity care among women in Nairobi’s informal settlements in Kenya
Authors: Oluoch-Aridi Jackline , Wafula Francis , Kokwaro Gilbert , Adam Mary B 
Published: September 2020

ObjectiveTo examine how women living in an informal settlement in Nairobi perceive the quality of maternity care and how it influences their choice of a delivery health facility.DesignQualitative study.SettingsDandora, an informal settlement, Nairobi City in Kenya.ParticipantsSix focus group discussions with 40 purposively selected women aged 18–49 years at six health facilities.ResultsFour broad themes were identified: (1) perceived quality of the delivery services, (2) financial access to delivery service, (3) physical amenities at the health facility, and (4) the 2017 health workers’ strike.The four facilitators that influenced women to choose a private health facility were: (1) interpersonal treatment at health facilities, (2) perceived quality of clinical services, (3) financial access to health services at the facility, and (4) the physical amenities at the health facility. The three barriers to choosing a private facility were: (1) poor quality clinical services at low-cost health facilities, (2) shortage of specialist doctors, and (3) referral to public health facilities during emergencies.The facilitators that influenced women to choose a public facility were: (1) physical amenities for dealing with obstetric emergencies and (2) early referral to public maternity during antenatal care services. Barriers to choosing a public facility were: (1) perception of poor quality clinical services, (2) concerns over security for newborns at tertiary health facilities, (3) fear of mistreatment during delivery, (4) use of unsupervised trainee doctors for deliveries, (5) poor quality of physical amenities, and (6) inadequate staffing.ConclusionThe study provides insights into decision-making processes for women when choosing a delivery facility by identifying critical attributes that they value and how perceptions of quality influence their choices.
Prevalence and epidemiological characteristics of inmates diagnosed with infectious diseases living in a region with a high number of prisons in São Paulo state, Brazil
Authors: do Nascimento Charlene Troiani , Pena Danilo Zangirolami , Giuffrida Rogério , Bandeira Monteiro Fernanda Nobre , da Silva Francisco Assis , Flores Edilson Ferreira , Prestes-Carneiro Luiz Euribel 
Published: September 2020

ObjectiveTo determine the prevalence and epidemiological characteristics of inmates diagnosed with infectious diseases living in a region with a high number of prisons, São Paulo, Brazil.DesignThis is a retrospective and descriptive study conducted from November 2017 to October 2018.SettingPrisons located in the western and northwestern regions of São Paulo, Brazil.MethodsWe conducted a retrospective analysis on infectious diseases and coinfections (HIV, hepatitis B virus (HBV), hepatitis C virus (HCV), syphilis and tuberculosis (TB)) of inmates from 28 prisons. Inmates were previously diagnosed following the protocol for control and surveillance of infectious diseases, through laboratory or imaging methods. A questionnaire was completed by the healthcare staff. Prevalence was obtained by dividing the number of individuals with positive results by the number of inmates in each prison. Locations of prisons were obtained and maps were constructed using geographic information systems.ResultsA total of 741 of 37 497 inmates (1.97%) were diagnosed with HIV, HBV, HCV, syphilis or TB. HIV was the most prevalent infectious disease (0.68%), followed by TB (0.66%), syphilis (0.2%), HCV (0.2%) and HBV (0.04%). For all of these diseases, prevalence rates varied from very low to high (3.11% and 2.45%) for TB and HIV, respectively, in the five prisons where they were most prevalent. HIV-syphilis was the most associated coinfection (OR, 63.7; 95% CI 41.4 to 96.7). Three of those diagnosed with the infection were female and the ratio of female to men was 0.004:1.ConclusionsOur findings demonstrate that the number of cases of infectious disease among inmates in the northwestern and western region of São Paulo is probably underestimated, with lower rates of HCV, HBV and syphilis. This represents a challenge to prisoners’ health. Improvements in diagnosis, mainly to reduce viral hepatitis, are crucial with benefits for inmates and the general population.
Is body mass index associated with the incidence of endometriosis and the severity of dysmenorrhoea: a case–control study in China?
Authors: Tang Yunhui , Zhao Mingzhi , Lin Luling , Gao Yifei , Chen George Qiaoqi , Chen Shouzhen , Chen Qi 
Published: September 2020

ObjectiveEndometriosis is considered as a serious gynaecological disease in women at a reproductive age. Lower body mass index (BMI) is thought to be a risk factor. However, recent studies indicated that women with normal BMI were also more likely to develop endometriosis, suggesting the association with BMI is controversial. We therefore investigated the association of BMI and surgically diagnosed endometriosis in a cohort of Chinese women.DesignRetrospective case–control study.SettingTertiary hospital.Patients709 women with endometriosis and 807 age matched controls between January 2018 and August 2019.InterventionAge at diagnosis, parity, gravida, BMI and self-reported dysmenorrhoea status were collected and the association of BMI and endometriosis was analysed.Measurement and main resultsOverall, the median BMI was not different between patients and controls (21.1 kg/m2 vs 20.9 kg/m2, p=0.223). According to the BMI categories for Asians/Chinese by WHO (underweight: <18.5 kg/m2, normal weight: 18.5–22.99 kg/m2, overweight: 23–27.49 kg/m2, obese: ≥27.50 kg/m2), overall, there was no difference in the association of BMI and endometriosis (p=0.112). 60% of patients were of normal weight. However, the OR of obese patients (BMI over 27.50 kg/m2) having endometriosis was1.979 (95% CI 1.15 to 3.52, p=0.0185), compared with women with normal weight. 50.3% patients reported dysmenorrhoea, and the OR of developing severe dysmenorrhoea in obese patients (BMI over 27.50 kg/m2) was 3.64 (95% CI 1.195 to 10.15, p=0.025), compared with patients with normal weight.ConclusionOur data demonstrate that overall there was no association between BMI and the incidence of endometriosis, but there was a significant increase in the incidence of endometriosis in obese women, compared with women with normal weight. Obesity was also a risk factor for severe dysmenorrhoea.
Determining barriers and facilitators to engagement for families in a family-based, multicomponent healthy lifestyles intervention for children and adolescents: a qualitative study
Authors: Wild Cervantée EK , Rawiri Ngauru T , Willing Esther J , Hofman Paul L , Anderson Yvonne C 
Published: September 2020

ObjectivesRecruitment and retention in child and adolescent healthy lifestyle intervention services for childhood obesity is challenging, and inequalities across social groups are persistent. This study aimed to understand the barriers and facilitators to engagement in a multicomponent assessment-and-intervention healthy lifestyle programme for children and their families, based in the home and community.DesignQualitative interview-based study of past users (n=76) of a family-based multicomponent healthy lifestyle programme in a mixed urban–rural region of New Zealand. Semistructured, home-based interviews were conducted and thematically analysed with peer debriefing for validity.ParticipantsFamilies were selected through stratified random sampling to include a range of levels of engagement, including those who declined their referral, with equal numbers of interviews with Indigenous and non-Indigenous families.ResultsThree interactive and compounding determinants were identified as influencing engagement in Whānau Pakari: acute and chronic life stressors, societal norms of weight and body size and historical experiences of healthcare. These determinants were present across societal, system and healthcare service levels. A negative referral experience to Whānau Pakari often resulted in participants declining further input or disengaging from the programme. A fourth domain, respectful and compassionate healthcare, was identified as a mitigator of these three themes, facilitating participant engagement despite previous negative experiences.ConclusionsWhile participant engagement in healthy lifestyle programmes is affected by determinants which appear to operate outside immediate service provision, the programme is an opportunity to acknowledge past instances of stigma and the wider challenges of healthy lifestyle change. The experience of the referral to Whānau Pakari is important for setting the scene for future engagement in the programme. Respectful, compassionate care is critical to enhanced retention in multidisciplinary healthy lifestyle programmes and ongoing engagement in healthcare services overall.
Multiprofessional leadership development: reflections from a doctor in training
Authors: Chen Yang 
Published: September 2020

BackgroundIn July 2020, the National Health Service (NHS) People Plan was refreshed, giving further impetus to staff development and leadership training. Through a series of interwoven tales, I discuss my own journey of leadership development and offer an analysis of the value of dedicated courses and the importance of providing this to the wider workforce.Story of selfI am a doctor in training and was among the first three cohorts placed onto the new Rosalind Franklin programme, organised by the NHS Leadership Academy. I share my key reflections of the impact of this course on my personal and professional development.Story of usMy cohort contained professionals from a diverse range of backgrounds—their challenges, views and insights contrasted greatly with my own. Having the protected time to build trust, form teams and discuss issues that crossed organisational boundaries provided novel insights that helped all of us.Story of nowAs the COVID-19 pandemic has taken hold, we are in a state of extreme flux. As a result, I have become aware of how important it is to marry expertise with generalist skills and knowledge of the wider healthcare system. Enduring the initial surge of COVID-19 was about staff working together and blending specialism with generalist pragmatism. The ability to harness and sustain this type of working will represent a legacy from COVID-19 that is positive and one which galvanises our greatest asset—the talents and experiences of our diverse workforce—in order to meet future healthcare challenges.
Electroweak physics in inclusive deep inelastic scattering at the LHeC
Authors: Britzger Daniel , Klein Max , Spiesberger Hubert 
Published: September 2020

AbstractAt the proposed electron-proton collider LHeC electroweak interactions can be uniquely studied in a largely unexplored kinematic region of spacelike momentum transfer. We simulate inclusive neutral- and charged-current deep-inelastic lepton proton scattering cross section data at center-of-mass energies of 1.2 and 1.3 TeV, and estimate the uncertainties of Standard Model parameters as well as of parameters describing physics beyond the Standard Model. A precision at sub-percent level is expected for the measurement of the weak neutral-current couplings of the light-quarks to the Z boson, $$g_{A/V}^{u/d}$$

g

A
/
V

u
/
d

, improving their present precision by more than an order of magnitude. The weak mixing angle can be determined with a precision of about $$\Delta \sin ^2\theta _\text {W}=\pm \,0.00015$$

Δ

sin
2

θ
W

=
±

0.00015

, and its scale dependence can be studied in the range between about 25 and 700 GeV. An indirect determination of the W-boson mass in the on-shell scheme is possible with an experimental uncertainty down to $$\Delta m_{W}=\pm \,6\,\text {MeV}$$

Δ

m
W

=
±

6

MeV

. We discuss how measurements in deep-inelastic scattering compare with those in the timelike domain, and which aspects are unique, for instance electroweak parameters in charged-current interactions. We conclude that the LHeC will determine electroweak physics parameters, in the spacelike region, with unprecedented precision leading to thorough tests of the Standard Model and possibly beyond.
An analysis of TCM disease syndromes of 36 cases of coronavirus disease 2019 (COVID-19) in Kunming, China
Authors: Zhu Jiangchun , Gan Shunkui , Bai Jinsong , Du Yingrong , Gao Jianpeng , Peng Jiangli , Yang Chunyan , Liu Qing , Li Jinghua , Fu Yi 
Published: September 2020

Objective: To analyze the distribution characteristics of syndrome of TCM of the patients with COVID-19 in Kunming, China. Methods: To classify and summarize the TCM syndrome types of COVID-19 patients via Cluster analysis combining with tongue image, chest CT and clinical expertise of 36 Covid-19 patients in Kunming. Results: In the 36 cases of Kunming region confirmed COVID-19 patients, 17 cases had fever (47.2%), 18 cases had cough (50%), 16 cases felt bitter taste in the mouth (44.4%), 18 cases felt dry throat (50.0%), 17 cases had poor appetite (47.2%), 15 cases had nausea (41.7%); 12 cases had diarrhea (33.3%), 15 cases had insomnia (41.7%); 12 cases had chest tightness (33.3%); 3 cases had dyspnea (8.3%); 6 cases had nasal congestion and running nose (16.7%); 15 cases had fatigue (41.7%); 6 cases had headache and body pain (16.7%); 5 cases had red tongue (13.9%); 18 cases had pale red tongue (50%); 8 cases had tongue with red edge and tip (22.2%); 3 cases had dark red tongue (8.3%); 2 cases had cyanosis (5.6%); 3 cases had swollen tongue (8.3%); 18 cases had dentate tongue (50%); 4 cases had yellow tongue coating (11.1%); 5 cases had yellow sticky tongue coating (13.9%); 12 cases had white sticky tongue coating (33.3%); 6 cases had thin white tongue coating (16.7%); 2 cases had no tongue coating (5.6%). The chest CT results showed that: There were five cases without lesions. The lesions were located in the upper lobe of one lung in 13 cases located in the lower lobe of one lung in seven cases, located in the upper middle lobe in three cases, located in the lower lobe in five cases, and in the upper middle and lower lobes of double lung in 13 cases. There were 14 cases of Shaoyang syndrome, 17 cases of wet Resistance Tir-juao Syndrome. According to the time of onset, the disease was followed by Shaoyang Syndrome (1 day), the Wet blocked tri-jiao Syndrome (3 days), epidemic poison retention lung syndrome and syndrome of flaring heat in qifen and yingfen (5 days), and dampness-toxicity lung-stagnation syndrome (6 days). Conclusion: The TCM syndromes of COVID-19 in Kunming are mainly the Wet Resistance Tri-Jiao Syndrome and Shaoyang syndrome, followed by dampness-toxicity lung-stagnation syndrome, epidemic poison retention lung and syndrome of flaring heat in qifen and yingfen.