bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigation of electrical and electromagnetic properties of quartz fiber reinforced polymer composite material by using modified paints with carbon nanoparticles (graphene/double-walled carbon nanotube)
Authors: Gul Nihal , Genc Oztoprak Belgin 
Published: May 2022

Composite materials have many features to contribute to aircraft design but have low electrical conductivity. In this study, it is aimed to increase the electrical conductivity of FRP (Fiber Reinforced Polymer) composites used in different parts of the aircraft. The modified nanoparticles were added into the aircraft paint and applied on the composites used in the radome part of the aircraft, and it is aimed to either increase or keep the electromagnetic permeability stable. Firstly, the surfaces of the FRP composite samples were painted by Graphene and Double-Walled Carbon Nanotube (DWCNT) to reinforce the conductive nanoparticles at different ratios. Resistance measurements of the samples were made according to the Airbus “Electrical Surface Resistance Measurement” procedure and their electrical conductivity was calculated. The Non-Contact Measurement Method test setup was used to obtain information about the electromagnetic properties of the samples. As a result of the measurements, N3 (σ = 4.37x10−4 S/m, S21 = −15.81 dB) sample conforms the best with the objectives of ourstudy compared to electrical conductivity (N0, σ = 4.83x10−5 S/m) and electromagnetic permeability (N0, S21 = −15.83 dB) of the reference sample. The contact angle measurements were taken to determine the contact angle changes depending on the surface morphology and conductivity changes of the samples painted with different and varying amounts of nanoparticle doped paint. Additionally, measurements were taken with the FTIR-ATR instrument to make surface analysis of the samples.
Sleep Endoscopy and Cine Magnetic Resonance Imaging Evaluation of Children With Persistent Obstructive Sleep Apnea
Authors: Li Carol , Kou Yann‐Fuu , DeMarcantonio Michael A. , Heubi Christine H. , Fleck Robert , Kandil Ali , Smith David F. , Ishman Stacey L. 
Published: May 2022

AbstractObjectiveTo compare findings of same‐day cine magnetic resonance imaging (MRI) and drug‐induced sleep endoscopy (DISE) and examine how each technique uniquely contributes to the evaluation of persistent obstructive sleep apnea following adenotonsillectomy.Study DesignRetrospective cohort study.SettingQuaternary care center.MethodsChart review was performed for consecutive patients who underwent same‐day cine MRI and DISE between 2015 and 2020. Descriptive statistics are reported, and Cohen kappa coefficients were calculated to evaluate the agreement between cine MRI and DISE for obstruction at the adenoids, lingual tonsils, and tongue base.ResultsThere were 137 patients, the mean age was 10.4 years (95% CI, 3.2‐16.7), and 62.8% were male. The most common sites of obstruction on DISE were the tongue base (86.9%), velum (78.7%), epiglottis (74.5%), inferior turbinate (68.6%), and lingual tonsil (61.3%). The most common sites of obstruction on cine MRI were the hypopharynx (56.3%), tongue base (44.8%), lingual tonsil (38.0%), and macroglossia (37.6%). There was moderate agreement for adenoid hypertrophy (κ = 0.53) and poor agreement for lingual tonsil hypertrophy (κ = 0.15) and tongue base obstruction (κ = 0.09). DISE identified more instances of multilevel obstruction when compared with cine MRI (94.9% vs 48.2%).ConclusionDISE offered a better examination of nasal and supraglottic obstruction and is sensitive to partial vs complete collapse, while cine MRI offered better soft tissue resolution for lymphoid tissue hypertrophy and provided a global view of primary and secondary airway obstruction. Cine MRI and DISE are complementary modalities in the evaluation of children with persistent obstructive sleep apnea.
Connectedness and independence of young adults and parents in the digital world: Observing smartphone interactions at multiple timescales using Screenomics
Authors: Sun Xiaoran , Ram Nilam , Reeves Byron , Cho Mu-Jung , Fitzgerald Andrew , Robinson Thomas N. 
Published: May 2022

Background: Young adults’ connectedness with and independence from parents have important implications for both their development and family relationships. Although technology plays an increasingly important role in these dynamics, there are few direct observations of how connectedness and independence unfold in the digital world. Little is known of between- and within-person differences in these dynamics. Purpose: This study uses Screenomics to directly observe smartphone interactions between young adults and their parents, and discover whether and how dimensions of connectedness and independence manifest in these interactions at multiple timescales. Research Design, Study Sample, and Data Collection: Screenshot sequences were collected from 10 ethnically diverse young adult (50% female) participants’ smartphones every 5 seconds for up to 1 month (total of 457,905 screenshots). We identified 1413 interaction instances between young adults and their parents (including 359 calls, 1032 messages, and 10 other communication instances). Analysis and Results Digital ethnographic analysis of screenshots revealed multiple themes related to connectedness (emotional support, logistical and financial support, consistent communication) and independence (parent fostering independence, parent intrusiveness/overinvolvement, and young adults’ psychological separation). Quantitative descriptions at different timescales (week, day, hour, moment) revealed within-person and between-person differences in active engagement, reciprocal communication, consistent communication, parent intrusiveness, young adults’ reliance on parents’ support, and young adults’ psychological separation. Conclusion: Findings highlight the need to examine family digital interactions at multiple timescales and the utility of temporally dense and comprehensive Screenomics data in studying social relations.
Distal end side-to-side anastomosis of sequential coronary bypass for size mismatched saphenous vein grafts and coronary arteries
Authors: Wei Ziheng , Ma Xuqing , Li Jingxing , Yang Junfeng , Wei Hua , Yu Yang , Gu Chengxiong , Huang Xinsheng 
Published: May 2022

Introduction The distal end anastomosis is critical to the entire sequential grafts in coronary artery bypass grafting (CABG), but caliber mismatch diminishes the quality of the anastomosis. We aimed to introduce a modified distal end side-to-side (deSTS) anastomosis to handle the size mismatch and compared with classic distal end end-to-side (deETS) anastomosis. Methods From January 2014 to December 2018, 185 patients who underwent off-pump CABG with size mismatched sequential vein grafts (≥3.5 mm) and target coronaries (1.0–1.5 mm) at the distal end anastomoses were included. We retrospectively reviewed the data of the patients, perioperative and follow-up outcomes were analyzed. Results The deSTS group ( n = 67) showed higher anastomotic flow (19.8 ± 8.0 vs 14.9±6.8 mL/min; p < 0.001) and lower pulsatility index (2.7 ± 0.8 vs 3.2 ± 1.0; p = 0.001) than the deETS group ( n = 118). Higher incidence of in-hospital myocardial infarction (MI) was found in the deETS group but without significant difference (9.0% vs. 15.3%; p = 0.220). Kaplan-Meier analysis illustrated a relatively lower MI and major adverse cardiovascular and cerebrovascular events (MACCE) incidence in the deSTS group, and the deSTS group was associated with a reduction in long-term death, MI and MACCE in the adjusted Cox regression model. In addition, relatively higher graft patency was found in the deSTS group. Conclusions The deSTS anastomosis showed superiority in solving size mismatch in sequential CABG, including better intraoperative flow dynamics, ideal long-term graft patency and reduced the incidence of perioperative and follow-up adverse events especially in MI.
Venovenous extracorporeal membrane oxygenation for coronavirus disease 2019 patients: A systematic review and meta-analysis
Authors: Zhai Kerong , Xu Xu , Zhang Pengbin , Wei Shilin , Li Jian , Wu Xiangyang , Gao Bingren , Zhang Yanhua , Li Yongnan 
Published: May 2022

Objective Although the application of venovenous extracorporeal membrane oxygenation (VV-ECMO) in coronavirus disease 2019 (COVID-19) patients with acute respiratory distress syndrome (ARDS) is accumulating, the feasibility and safety of this therapy remain controversial. We aimed to evaluate the effect of VV-ECMO in the treatment of these patients. Methods A comprehensive literature search was performed using PubMed, Embase, the Cochrane Library, and International Clinical Trials Registry Platform databases through November 2021. According to the inclusion and exclusion criteria, the included studies were screened, and meta-analysis was performed by R software (version 4.0.2). Results Forty-two studies including 2037 COVID-19 patients supported with VV-ECMO due to ARDS were identified. The pooled analysis revealed that 30-, 60-, and 90-day mortality among patients were respectively 46% (95% CI 37%–57%, I2 = 66%), 46% (95% CI 30%–70%, I2 = 93%), and 49% (95% CI 43%–58%, I2 = 52%), and the pooled incidence rate of in-hospital mortality, major bleeding, hemorrhagic stroke, thrombosis, pulmonary embolism, deep venous thrombosis, and renal replacement therapy were respectively 35%, 39%, 11%, 40%, 15%, 21%, and 44%. Conclusion Although COVID-19 patients may have a higher risk of bleeding, hemorrhagic stroke, and acute kidney injury during ECMO therapy, the survival rate was more than half of the cases. Our data may support the application of VV-ECMO in COVID-19 patients.
The danger of feeling sorry for oneself: How coworker incivility diminishes job performance through perceived organizational isolation among self-pitying employees
Authors: Haq Inam Ul , De Clercq Dirk , Azeem Muhammad Umer 
Published: May 2022

The study examined how employees’ experience of resource-draining coworker incivility might undermine their job performance, with a focus on how this harmful process might be explained by perceptions of organizational isolation and moderated by susceptibility to self-pity. Three-wave survey data, collected among employees and their supervisors in various industries, indicated that an important reason that employees’ exposure to rude coworker treatment escalated into diminished performance outcomes was a belief that the employing organization was the source of their sense of abandonment. As a mediator, perceived organizational isolation exerted an especially prominent effect among employees who had a general tendency to pity themselves in difficult circumstances. Organizations accordingly can contain the risk that disrespectful coworker relationships translate into tarnished performance by discouraging employees to feel bad for themselves in the face of work-related hardships. JEL Classification: M50
Study to evaluate efficacy of midriatic-digital-images when screening retinal-complications in people living with HIV
Authors: Adrianzén Rosa , Rioja Miguel , Manrique Alberto , García Tello Angélica Victoria 
Published: May 2022

To determine efficacy of mydriatic-digital images (MDI) when screening retinal complications in people living with HIV, in this study, a consecutive series of 79 people living with HIV (PLHIV) were evaluated. Two series of MDI were taken: - macula and optic nerve - nine gaze fields, which findings were compared with those obtained by a retina specialist. Both examiners were unaware of each other’s results. Average age was 32.2 years old, predominantly male (75.9%). Most frequent complications were HIV retina microangiopathies (6.3%) and toxoplasmosis (5.1%), followed by Cytomegalovirus and neuro-retinitis, optic neuritis and vitreitis, each one with 1.3%. Sensitivity with two MDI was 92.8% (CI 95% 66.0–100.0) and with nine 100% (CI 95% 77.0–100.0) and specificity of 95.4% (CI 95% 87.0–99.0) for both series. The positive predictive value was 81.3 and 82.4%, and negative predictive value was 98.4 and 100% respectively. The strength of agreement was substantial for the two series with the retina specialist examination (Kappa index of 0.836 and 0.888 respectively). Mydriatic-digital-images appear to be an effective method to screen for HIV-related retinal-complications in a regional hospital in Perú.
Association of Human Leucocyte Antigen Class II, with viral load and immune response to Epstein–Barr virus in adult and pediatric Systemic lupus erythematosus patients
Authors: Das Prabir , Minz Ranjana W , Saikia Biman , Sharma Aman , Anand Shashi , Singh Heera , Singh Surjit 
Published: May 2022

Objective Systemic lupus erythematosus (SLE) is a multisystem autoimmune disease, which is known to be associated with HLA-DRB1 and Epstein–Barr virus (EBV) infection. In the Indian subcontinent where there is high seroendemicity of EBV, we postulated that the association of this virus in adult SLE (aSLE) and pediatric SLE (pSLE) patients would be different and differentially associate with the HLA-DRB1 susceptibility and protective genes. Methods A total of 109 aSLE, 52 pSLE, 215 adult healthy and 63 pediatric healthy controls were recruited. HLA-DRB1 genotyping by PCR-SSP, EBV load estimation by real-time PCR and antibody profiling (IgG & IgM) to EBV antigens by line blot assay were performed. Results DRB1*15 was found predominant in pSLE patients and DRB1*03 in aSLE patients. DRB1*15/X heterozygous was predominant in overall SLE patients, although disease severity, like hypocomplementemia, higher autoantibody levels and more organ involvement was observed in *15/*15 homozygous state. EBV strongly associated with pSLE patients showing higher percent of EA-D IgG ( p < 0.0001) and p22 IgG ( p = 0.035) along with higher viral load ( p = 0.001) as compared to healthy controls. In addition, the higher EBV DNA load significantly associated with anti-EA-D IgG ( p = 0.013) and DRB1*15/*15 ( p = 0.007) in pSLE patients as compared to aSLE patients. Conclusions This study therefore indicates that different HLA-DRB1 allotypes confer susceptibility to SLE in children and adults and disease may be triggered by increased EBV reactivation.
Health-related quality of life, fatigue and health utilities in lupus nephritis: A systematic literature review
Authors: Kharawala Saifuddin , Kaur Gavneet , Shukla Hemlata , Scott David Alexander , Hawkins Neil , Chen Wen-Hung , Gairy Kerry 
Published: May 2022

Background Systemic lupus erythematosus (SLE) is a chronic, autoimmune disease characterized by abnormal B-cell activation and the presence of autoantibodies, which can result in organ damage. Lupus nephritis (LN) is the most common severe organ manifestation of SLE and may result in impaired kidney function. However, there is limited research on the health-related quality of life (HRQoL) burden amongst patients with LN. The objective of this systematic literature review was to assess the HRQoL, fatigue and health utilities associated with LN. Methods A structured literature search (GSK Study 212980) of the MEDLINE and Embase databases was conducted in July 2019 and updated September 2021. Relevant international congress abstracts from 2016 to 2021 were searched, and gray literature searches and keyword-based searches in PubMed, Google, and Google Scholar were also conducted. Results were screened according to predefined criteria and data on the outcomes of interest were extracted. A quantitative analysis was conducted to supplement the narrative review, to provide 36-item Short Form survey (SF-36) estimates, and to determine variation by prognostic factors. Results Of 1155 articles identified, 26 studies for a total of 3440 patients were included. Patients with LN showed poorer HRQoL and more fatigue than healthy controls/the general population, although these were similar between patients with SLE with and without LN. HRQoL was worse in patients with LN Class III/IV or with active disease. Fatigue was generally reported as the most burdensome symptom and was associated with lower HRQoL and increased treatment dissatisfaction. During induction treatment, HRQoL and fatigue were improved with mycophenolate mofetil versus cyclophosphamide. HRQoL improved over time with treatment amongst patients with active LN. Very limited data were identified assigning utilities to health states for cost-effectiveness analysis. Nine studies were considered for quantitative analysis of baseline SF-36 scores. The analysis suggested that LN has a significant impact across all SF-36 domains, with the lowest scores in the general health perceptions and role-physical domains and physical component summary. Conclusions There is a large HRQoL burden in patients with LN, in particular regarding symptoms of fatigue. Future research should focus on investigating fatigue severity and health utilities in LN.
Infrastructure Development in India: The Way Ahead
Authors: Saini Shalu , Giri Jagat Narayan 
Published: May 2022

Infrastructure development is prerequisite in transforming a slow-moving economy into an advanced one. In the Global Competitiveness Index, India’s rank is 70 out of 140 countries for infrastructure quality in the world. As per the recent estimation, to convert the vision of $5 trillion economy into reality, $4.51 trillion needs to be invested by 2030 in building the infrastructure of the country. Great efforts in the form of huge investment in infrastructure is required if we want to convert this dream into reality. The latest Budgetary outlay of Government of India for infrastructure sector of ₹100 lakh crore which is streamlined to be invested on infrastructure over the next 5 years and more than 6,500 projects will boost the economic development of the country. Infrastructure industry encompasses sectors such as social and commercial infrastructure, communication, energy, transport and water sanitation. This article is an attempt to study the public private partnership (PPP) model in infrastructural development in India. This research article has six sections as follows. Section 1 aims at defining the importance of infrastructure for economic growth of the country. Section 2 provides the discussion on PPP model. Section 3 explains the review of literature. Section 4 represents the research problem and research question followed by discussion and possible solutions in Section 5 and, finally, Section 6 of the article represents the conclusions and the limitations along with the direction for future research. JEL Classification: M48, R42, F65, G32
Utilization of the Modified Lapidus Procedure for Correction of Moderate to Severe Hallux Valgus Deformity With Increased Distal Metatarsal Articular Angle
Authors: Shah Milaan , Stirling Brianna , Jackson J. Benjamin , Gonzalez Tyler 
Published: May 2022

Background: Hallux valgus, a common deformity treated by orthopaedic foot and ankle surgeons, can frequently present with an increased distal metatarsal articular angle (DMAA), which may require correction in addition to the hallux valgus deformity. Thus, we investigated the efficacy of the modified Lapidus procedure, a triplanar correction, in correcting the DMAA in hallux valgus surgery. Methods: A retrospective chart review was performed on patients who underwent the hallux valgus reconstruction with a modified Lapidus procedure between April 26, 2018, and November 19, 2020. Exclusion criteria included patients with inadequate follow-up. Hallux valgus angle (HVA), intermetatarsal angle (IMA), and DMAA were measured on preoperative weight-bearing, 2-week postoperative non-weight-bearing, and at final follow-up weight-bearing radiographs. Results: The study included a total of 99 cases of modified Lapidus procedure for hallux valgus on 85 subjects. On radiologic assessment, the average DMAA decreased from 17.72 ± 6.18 degrees preoperatively to 9.19 ± 5.19 degrees 2 weeks postoperatively (P < .0001) and 9.79 ± 4.62 degrees at the final follow-up (P < .0001). The average HVA decreased from 31.34 ± 10.39 degrees preoperatively to 13.34 ± 6.16 degrees 2 weeks postoperatively (P < .0001) and 15.05 ± 7.43 degrees at final follow-up (P < .0001). Last, the IMA decreased from 14.99 ± 3.82 degrees preoperatively (P < .0001) to 4.66 ± 2.59 degrees 2 weeks postoperatively and 6.62 ± 3.46 degrees at final follow-up (P < .0001). The recurrence rate was 3.03%. Conclusion: The modified Lapidus procedure is an effective procedure in correcting the HVA, IMA, and DMAA in hallux valgus surgery without the need for additional distal or proximal metatarsal osteotomies. Surgeons should consider this technique in patients with moderate to severe hallux valgus deformity who may require correction of their DMAA. Level of Evidence: Level IV-Retrospective comparative study.
High Pain Catastrophizing Scale Predicts Lower Patient-Reported Outcome Measures in the Foot and Ankle Patient
Authors: Veljkovic Andrea , Gagne Oliver , Abuhantash Monther , Younger Alastair S. E. , Symes Michael , Penner Murray J. , Wing Kevin J. , Syed Khalid A. , Lau Johnny 
Published: May 2022

Background: Postoperative outcomes may be affected by the patient’s preoperative morbidity. It is hypothesized that patient’s pain catastrophization prior to foot and ankle surgery may affect their patient-reported outcomes. Methods: This study prospectively assessed a consecutive cohort of 46 patients undergoing foot and ankle reconstruction to describe the relationship between Pain Catastrophizing Scale (PCS) and patient-reported outcomes measured by 12-item Short Form Health Survey and Foot and Ankle Outcome Score (FAOS). Results: The 1-year postoperative FAOS pain, activities of daily living, and quality of life scores correlated significantly with all baseline PCS subcategories. We found that the mental domain of the SF-12 had a statistically significant correlation with the rumination and helplessness PCS subcategories. Conclusion: This study showed a significant association between a high preoperative PCS and a worse 1-year FAOS. As such, catastrophization could be screened for and potentially treated preoperatively to improve patient-reported outcomes in elective foot and ankle surgery. Level of Evidence: Therapeutic, Level III Evidence
Characteristics of non-fatal overdoses and associated risk factors in patients attending a specialist community-based substance misuse service
Authors: Ghose Riya , Cowden Fiona , Veluchamy Abirami , Smith Blair H , Colvin Lesley A 
Published: May 2022

Introduction There are concerns about rising drug-related deaths and the potential contribution of prescription analgesics. There is limited understanding regarding the role of prescription analgesics in non-fatal overdoses (NFODs), nor is there a good understanding of what factors are associated with more severe overdose. Objectives To explore risk factors and characteristics of NFODs among people attending a specialist community-based substance misuse service. Methods After Caldicott approval, data on NFODs, in people attending the Tayside Substance Misuse Service (TSMS), were extracted from the Scottish Ambulance Service database, along with opioid replacement therapy (ORT) prescribing data. Statistical analysis was performed using R studio and Microsoft Excel. Results 557 people (78% [434/556] male, mean age ± standard deviation 38.4 ± 7.95) had an NFOD. Repeat NFODs were more likely in males compared to females ( p < .0065). Males were more likely to be administered naloxone (OR = 1.94, 95% CI = 1.10–3.40, p < .02). NFODs at home were more likely to be moderate to severe (categorized by Glasgow Comma Scale [ p < .02, OR = 4.95, 95% CI = 1.24–24.38]). Methadone (321/557, 57.63%), benzodiazepines (281/557, 50.45%) and heroin (244/557, 43.81%) were the commonest substances: prescribed methadone overdose was more likely than buprenorphine ( p < .00001). Opioids and benzodiazepines were often taken together (275/557, 49.40%), with almost all gabapentinoid NFODs also involving opioids (60/61, 98.40%). Conclusions Polysubstance use with opioids prescribed for ORT, such as methadone, is highly likely to be implicated in NFOD, with males being at the highest risk of severe and repeat NFOD. Future work should focus on strategies to further reduce NFODs.