bluuebunny/crossref_metadata_2025_split huggingface dataset:
Diagnostic value of HR‐MRI and DCE‐MRI in unilateral middle cerebral artery inflammatory stenosis
Authors: Wang Guo‐Chang , Chen Yu‐Jing , Feng Xu‐Ran , Feng Ping‐Yong 
Published: August 2020

AbstractPurposeHigh‐resolution magnetic resonance imaging (HR‐MRI) has high spatial resolution and can simultaneously perform wall and lumen imaging. Dynamic contrast‐enhanced magnetic resonance imaging (DCE‐MRI) can evaluate the integrity of the blood–brain barrier. In this paper, the result of 3.0T HR‐MRI and 3.0T DCE‐MRI has been evaluated to explore the application value of unilateral middle cerebral artery inflammatory stenosis and changes in vascular permeability parameters of stroke events.MethodsThirty‐six cases of neurological suspicion of central nervous system vasculitis of our hospital were selected from 20 January 2018 to 1 January 2019, who were diagnosed as unilateral middle cerebral artery M1 stenosis/occlusion by 3D TOF MRA. 3.0T HR‐MRI and 3.0T DCE‐MRI has been applied.ResultsAmong the 36 patients who met the inclusion criteria, 23 patients with central nervous system vasculitis were diagnosed. The 23 patients with HR‐MRI showed diffuse thickening and enhanced stenosis. The Ktrans value of 10/23 patients with acute–subacute cerebral infarction and 3/23 patients in chronic phase were significantly higher than that of the mirror side, and the Ktrans value of these patients remeasured in the same region of interest is lower than before after 6 months treatment. The Ktrans value in the target area of 10 patients without cerebrovascular events was not statistically significant compared with the mirror side. The Ktrans value of patients with acute–subacute cerebral infarction was significantly higher than that without cerebrovascular events (0.098 ± 0.038 vs. 0.007 ± 0.001, p = .000), and there was no significant difference between Ktrans in the chronic infarction group and the other two groups (0.098 ± 0.038 vs. 0.044 ± 0.012, p = .058; 0.044 ± 0.012 vs. 0.007 ± 0.001, p = .057).ConclusionHR‐MRI is an accurate direct imaging method and has a high value for the etiological diagnosis of central nervous system vasculitis. DCE‐MRI could be an effective way to evaluate and monitor blood–brain barrier to prevent clinical ischemic stroke.
The inter‐relationship between diet, selflessness, and disordered eating in Australian women
Authors: Collins Melissa , Quinton Stephanie 
Published: August 2020

AbstractPersonality traits and diet can be used to predict if a person is predisposed to disordered eating. Results of this study demonstrate a strong significant relationship between the personality trait of selflessness, diet group, and disordered eating. Vegans were most likely to display selflessness tendencies associated with disordered eating; however when selflessness was controlled for, vegans displayed substantially less disordered eating pathology than non‐vegetarians.ObjectiveTo explore the relationship between diet group (non‐vegetarian, semi‐vegetarian, true‐vegetarian, and vegan) and disordered eating while investigating to what extent personality trait of selflessness mediates the relationship between diet group and disordered eating.MethodCross‐sectional data from 634 Australian nonclinical women who completed a series of online questionnaires including measures of diet group, disordered eating, and selflessness were used to examine associations between diet, personality (selflessness), and disordered eating.ResultsSelflessness was found to be a significant positive predictor of disordered eating. Results confirm that selflessness played a suppressing role in the relationship between the vegan diet group and disordered eating, when compared to non‐vegetarians. Surprisingly, vegans displayed significantly less disordered eating than non‐vegetarians and semi‐vegetarians.DiscussionResults of the current study imply that the role of selflessness on disordered eating, when broken down across diet group, may be more complex than first thought. If replicated, these results suggest that targeted treatment of selflessness in different diet groups may improve treatment outcomes for disordered eating. Further research should explore why diet groups differ in terms of selflessness and how this impacts disordered eating.
Impact of COVID‐19 pandemic on STEMI care: An expanded analysis from the United States
Authors: Garcia Santiago , Stanberry Larissa , Schmidt Christian , Sharkey Scott , Megaly Michael , Albaghdadi Mazen S. , Meraj Perwaiz M. , Garberich Ross , Jaffer Farouc A. , Stefanescu Schmidt Ada C. , Dixon Simon R. , Rade Jeffrey J. , Smith Timothy , Tannenbaum Mark , Chambers Jenny , Aguirre Frank , Huang Paul P. , Kumbhani Dharam J. , Koshy Thomas , Feldman Dmitriy N. , Giri Jay , Kaul Prashant , Thompson Craig , Khalili Houman , Maini Brij , Nayak Keshav R. , Cohen Mauricio G. , Bangalore Sripal , Shah Binita , Henry Timothy D. 
Published: August 2020

AbstractObjectiveTo evaluate the impact of COVID‐19 pandemic migitation measures on of ST‐elevation myocardial infarction (STEMI) care.BackgroundWe previously reported a 38% decline in cardiac catheterization activations during the early phase of the COVID‐19 pandemic mitigation measures. This study extends our early observations using a larger sample of STEMI programs representative of different US regions with the inclusion of more contemporary data.MethodsData from 18 hospitals or healthcare systems in the US from January 2019 to April 2020 were collecting including number activations for STEMI, the number of activations leading to angiography and primary percutaneous coronary intervention (PPCI), and average door to balloon (D2B) times. Two periods, January 2019–February 2020 and March–April 2020, were defined to represent periods before (BC) and after (AC) initiation of pandemic mitigation measures, respectively. A generalized estimating equations approach was used to estimate the change in response variables at AC from BC.ResultsCompared to BC, the AC period was characterized by a marked reduction in the number of activations for STEMI (29%, 95% CI:18–38, p < .001), number of activations leading to angiography (34%, 95% CI: 12–50, p = .005) and number of activations leading to PPCI (20%, 95% CI: 11–27, p < .001). A decline in STEMI activations drove the reductions in angiography and PPCI volumes. Relative to BC, the D2B times in the AC period increased on average by 20%, 95%CI (−0.2 to 44, p = .05).ConclusionsThe COVID‐19 Pandemic has adversely affected many aspects of STEMI care, including timely access to the cardiac catheterization laboratory for PPCI.
Severe hypersensitivity reaction to etoposide phosphate: A case report
Authors: Cotteret Camille , Rousseau Julia , Zribi Kaouther , Schlatter Joel 
Published: August 2020

AbstractHypersensitivity to etoposide phosphate has rarely been documented. We report a case of severe hypersensitivity reaction to etoposide phosphate in an old man. The patient experienced anaphylactic shock and has been hospitalized in intensive care unit. Vigilance is required regarding potential severe reactions with etoposide phosphate formulation.
Eosinophilic lingual tonsillitis induced by sublingual immunotherapy: A case series
Authors: Cavaliere Carlo , Luperto Paolo , Gnesutta Michele , Incorvaia Cristoforo , Rosati Davide , Masieri Simonetta 
Published: August 2020

AbstractThe new observation of eosinophilic lingual tonsillitis as a possible adverse reaction to sublingual immunotherapy is likely to stimulate new investigations aimed at improving the understanding of the mechanisms of biodistribution of extracts placed at the sublingual level.
Use of a kaolinitic‐illitic clay from Central African Republic and an organic waste for the production of porous ceramic materials
Authors: Serewane Deramne Rosellyne , Lecomte‐Nana Gisèle Laure , Peyratout Claire , Naït‐Ali Benoit , Tchangbedji Gado 
Published: August 2020

AbstractThis work aimed at investigating the use of agricultural waste for the manufacture of porous ceramic products while promoting the valorization of local clay materials. The peel of plantain (Musa paradisiaca) fruits appeared as potential porogen and source of flux during the firing of silicate ceramics. A commercial kaolin served as the reference raw clay to investigate the influence of the waste content (from 0 to 30 mass%) over the microstructure and mechanical properties upon sintering at 1000 and 1200°C (dwelling time of 1 hour). The main physical and chemical characteristics of the local clay (from Central African Republic) were analyzed. This clay appeared to be a moderately plastic silica‐rich clay material that exhibited a bimodal particle size distribution. Mixtures of this clay with 0, 10, and 15 mass% of the waste were submitted to compressive strength testing upon firing at 1100°C (dwelling times = 1 or 2 hours). In all samples, the compressive strength decreased while the open porosity rate increased with increasing waste content. When using the commercial kaolin, the open porosity could be tuned close to 53% and 40% after firing at 1000 and 1200°C, respectively, by adding 30 mass% of waste. Accordingly, firing at 1200°C for the latter sample led to higher compressive strength due to the enhanced consolidation related to flux oxides arising from the waste burnt out. For the local clay, the incorporation of 10 or 15 mass% of waste led to open porosity values in the range 36%‐40% after firing at 1100°C regardless of the dwelling time. Accordingly, the compressive strength was decreased, 60% of the initial value for the local clay without waste.
Environmental Multi‐dimensionality and Staff Localization in Multinational Enterprises: The Case of Korean Firms
Authors: Baik Youjin , Kim Hyojin , Park Young‐Ryeol 
Published: August 2020

AbstractThe person–environment fit theory posits that the term “environment” can be defined at different levels. This study delineates two environmental dimensions (strategic and organizational) and empirically examines the potential moderating effects of two strategic factors (intra‐ and inter‐regional diversification) on the relationship between two organizational factors (subsidiary ownership and host‐country experience) and MNE subsidiary staffing composition. The results indicate that strategic and organizational dimensions have impacts on subsidiary staffing composition. This study also finds that the interaction effects between strategic and organizational factors are significant only when there is congruence between demands from different environmental dimensions.
A modified sliding‐mode controller‐based mode predictive control strategy for three‐phase rectifier
Authors: Wang Meng , Wang Haoran , Shi Yanyan , Shen Minghui , Song Jian 
Published: August 2020

SummaryIn three‐phase pulse width modulation rectifiers, proportional integral (PI) has been used in voltage outer‐loop to obtain the active current reference when using the conventional model predictive control strategy. However, the performance of the dynamic response is poor as large step and longer settling time are required on the active power under the load variation. To cope with this problem, a sliding‐mode controller can be employed to replace the PI controller. Nevertheless, the sliding‐mode variable structure control is discontinuous which leads to the chattering problem. In this work, a novel control strategy which combines a simplified model predictive control and a modified sliding‐mode control is proposed and investigated. The proposed strategy is supposed to reduce the effect of unexpected disturbances such as the DC‐link voltage step and the load variation. Simulation and experiments have been conducted for validation. The results indicate that the proposed strategy is feasible and has excellent dynamic response. Furthermore, it is easy to design and implement.
Three‐phase two‐leg buck‐boost DC‐AC inverter with differential power processor unit
Authors: Hossam‐Eldin Ahmed A. , Elserougi Ahmed A. , Abdelsalam Ahmed K. , Farghly Abdelrahman M. 
Published: August 2020

SummaryRenewable energy sources (RESs) need power‐electronics‐based converters to deliver the acquired power to the grid. Those converters should provide voltage‐bucking/boosting capabilities to accommodate various grid modes specially for three‐phase distorted commonly unbalanced distribution utility networks. Several power electronic‐based converters have been elaborated to fulfill this high‐demand market. Single‐stage converters are the most dominant in the market where the current source inverters (CSIs), impedance source inverters (ZSIs), and boost inverters are the high‐end candidates. The aspects of cost, footprint, and minimal numbers of active switches, in addition to simplified controllability, build the main challenges that face the evolution of robust renewable energy‐associated grid‐tied converters. This paper presents a novel three‐phase differential‐mode buck‐boost inverter based on two bidirectional buck‐boost DC/DC converters and one differential power processor (DPP) unit. The proposed topology is a single‐stage DC/AC converter offering bucking/boosting capability, with reduced hardware requirements. The proposed topology features a simplified control methodology in addition to reduced size and cost of the hardware setup which makes it more suitable for grid‐tied renewable energy applications. The operation principles, small‐signal model, and control strategy of the proposed topology are also illustrated. Simulation and experimental results are presented in details to verify the topology‐enhanced performance under various operating conditions. The deducted results elucidate the viability of the proposed configuration alongside with the claimed merits.
A double‐edged sword: How social diversity affects trust in representatives via perceived competence and warmth
Authors: Ehrke Franziska , Bruckmüller Susanne , Steffens Melanie C. 
Published: August 2020

AbstractPrevious research has claimed that diversity erodes trust, even though the empirical evidence is mixed and restricted to ethnic neighborhood diversity. Against the backdrop of increasing diversity within the political sphere and concurrently declining political trust, we examined the impact of social diversity on trust in groups of political representatives. In two experiments (N1 = 109,N2 = 248) we tested how the diversity of political parties affected citizens’ trust in them. In line with predictions of the stereotype content model, diverse parties were perceived as warmer and less competent than non‐diverse parties (Experiments 1–2). Additionally, party diversity was perceived as having more benefits, but also involving more threats (Experiment 2). Consequently, diversity had both positive (via warmth and benefits) and negative (via competence and threats) indirect effects on trust. These results help to untangle previously mixed, for the most part non‐experimental, findings of the relationship between diversity and trust.
Nickel Coated Graphite Microparticle Based Electrodes for Carbon Dioxide Reduction in MonoethanolamineMedium
Authors: Filotás Dániel , Asserghine Abdelilah , Nagy Tibor , Asztalos Lilla , Kovács Ferenc , Dobránszky János , Nagy Lívia , Nagy Géza 
Published: August 2020

AbstractA composite electrode that contains home‐made nickel coated carbon micro‐particles as active materials and epoxy binder has been prepared. The surface morphology, elemental composition and size distribution of microparticles were investigated using SEM, EDS, AAS, micro Raman spectroscopy and appropriate seizer apparatus. The prepared micro‐particles appeared monodispers with 33 μm most numerous particle size diameter and with 10.1 w/w % Ni content. Conventional electrochemical methods like impedance spectroscopy and voltammetry as well as scanning electrochemical microscopy (SECM) were used for investigation the properties of the composite electrodes. It has been proved that the electrode can be well used for electro‐catalytic reduction of CO2 directly in aqueous mono‐ethanol amine (MEA) solution that frequently are applied for capturing it from power plant flue gases. SECM measurements showed that presence of dissolved CO2 hinders the hydrogen evolution in aqueous MEA solution.
Voltammetric Behavior and Reliable Method for the Determination of Coccidiostat Robenidine in Animal Feed and Poultry Meat
Authors: Ivakh S. , Dubenska L. , Rydchuk M. , Plotycya S. 
Published: August 2020

AbstractThe voltammetric behaviour of coccidiostat robenidine was investigated. The outcomes have revealed that reduction of robenidine causes an appearance of one diffusion‐controlled cathodic peak on a static mercury drop electrode (SMDE) and a silver solid amalgam electrode (p‐AgSAE). The influence of pH, a supporting electrolyte, a scan rate and accumulation parameters was evaluated. The mechanism of robenidine reduction involving two electrons and one proton was studied for the first time. The calibration curves with the wide linear concentration ranges (more than two concentration orders) were obtained under optimized experimental conditions and operating parameters. The reduction current linearly increases when increasing the concentration of coccidiostat. The methods of voltammetric determination of robenidine in feed and meat have been developed. The limits of quantitation of the methods of robenidine determination in feed are 9.5 mg/kg and 2.5 mg/kg on SMDE and p‐AgSAE, respectively. Calculated recoveries ranges of robenidine were between 88.8 % and 101.5 %.
Postoperative extracorporeal membrane oxygenation can successfully support patients following upper airway reconstruction
Authors: Cohen William , Mirzai Saeid , Combs Pamela , Rose Rebecca , Kagan Viktoriya , Correia Camil , Gottlieb Lawrence J. , Song Tae 
Published: August 2020

AbstractBackgroundPatients requiring intensive upper airway reconstruction are anatomically restricted in terms of the respiratory support they can receive. While intraoperative extracorporeal membrane oxygenation (ECMO) has been effectively utilized, little has been shown regarding the utility of ECMO for long‐term support in these patients.MethodsWe demonstrate how a patient with tongue and hypopharyngeal squamous cell carcinoma that necessitated upper airway reconstruction was supported with veno‐venous (VV) ECMO due to postoperative respiratory failure and an inability to maintain a stable airway.ResultsBy initiating VV ECMO, we were able to decrease positive pressure ventilation and FiO2, thereby minimizing ventilator‐associated trauma and irritation to facilitate wound healing. Over time, ventilatory support was increased in parallel with decreasing ECMO support, allowing discharge to rehabilitation after 74 days of ECMO.ConclusionECMO can effectively support patients with ongoing respiratory requirements following upper airway reconstruction when standard ventilatory techniques are inadequate or not feasible.
Clinical Features of Patients With COVID‐19 With Nonalcoholic Fatty Liver Disease
Authors: Huang Rui , Zhu Li , Wang Jian , Xue Leyang , Liu Longgen , Yan Xuebing , Huang Songping , Li Yang , Yan Xiaomin , Zhang Biao , Xu Tianmin , Li Chunyang , Ji Fang , Ming Fang , Zhao Yun , Cheng Juan , Wang Yinling , Zhao Haiyan , Hong Shuqin , Chen Kang , Zhao Xiang‐an , Zou Lei , Sang Dawen , Shao Huaping , Guan Xinying , Chen Xiaobing , Chen Yuxin , Wei Jie , Zhu Chuanwu , Wu Chao 
Published: August 2020

Previous studies reported that coronavirus disease 2019 (COVID‐19) was likely to result in liver injury. However, few studies investigated liver injury in patients with COVID‐19 with chronic liver diseases. We described the clinical features in patients with COVID‐19 with nonalcoholic fatty liver disease (NAFLD). Confirmed patients with COVID‐19 from hospitals in 10 cities of Jiangsu Province, China, were retrospectively included between January 18, 2020, and February 26, 2020. The hepatic steatosis index (HSI) was used to defined NAFLD. A total of 280 patients with COVID‐19 were enrolled. Eighty‐six (30.7%) of 280 patients with COVID‐19 were diagnosed as NAFLD by HSI. One hundred (35.7%) patients presented abnormal liver function on admission. The median alanine aminotransferase (ALT) levels (34.5 U/L vs. 23.0 U/L; P < 0.001) and the proportion of elevated ALT (>40 U/L) (40.7% vs. 10.8%; P < 0.001) were significantly higher in patients with NAFLD than in patients without NAFLD on admission. The proportion of elevated ALT in patients with NAFLD was also significantly higher than patients without NAFLD (65.1% vs. 38.7%; P < 0.001) during hospitalization. Multivariate analysis showed that age over 50 years (odds ratio [OR], 2.077; 95% confidence interval [CI], 1.183, 3.648; P = 0.011) and concurrent NAFLD (OR, 2.956; 95% CI, 1.526, 5.726; P = 0.001) were independent risk factors of ALT elevation in patients with COVID‐19, while the atomized inhalation of interferon α‐2b (OR, 0.402; 95% CI, 0.236, 0.683; P = 0.001) was associated with a reduced risk of ALT elevation during hospitalization. No patient developed liver failure or death during hospitalization. The complications and clinical outcomes were comparable between patients with COVID‐19 with and without NAFLD. Conclusion: Patients with NAFLD are more likely to develop liver injury when infected by COVID‐19. However, no patient developed severe liver‐related complications during hospitalization.
Youth with diabetes and their parents' perspectives on transition care from pediatric to adult diabetes care services: A qualitative study
Authors: Butalia Sonia , McGuire K. Ashlee , Dyjur David , Mercer Julia , Pacaud Daniele 
Published: August 2020

AbstractBackground and AimsWhen youth with diabetes transition from pediatric to adult diabetes care, they are at high risk for loss to follow up and worsening glucose control. We aimed to gain insight on how to improve the transition of youth with type 1 diabetes from pediatric to adult diabetes care from the patients' and parents' perspective.MethodsWe conducted focus groups in youth with type 1 diabetes in transition from pediatric to adult diabetes care and their parents, in Calgary, Alberta, between June and August 2014. Eligibility criteria included: (a) type 1 diabetes; (b) aged 15 to 25 years; (c) have or had received care at the pediatric hospital; and, (d) either pre or post‐transfer; or, (e) parents of recently transferred youth. Purposive sampling was used, and the theoretical framework used was the Integrated Behaviour Model. Participants were asked about positive, negative, or challenging experiences related to diabetes and transition, solutions to challenges, and tools and strategies to improve and better support transition. Thematic analysis was conducted after focus groups were recorded and transcribed.ResultsThree focus groups were conducted: pre‐transfer youth with diabetes (4 females and 3 males; median age 17.5 years, IQR 1.3 years); post‐transfer young adults with diabetes (2 females and 2 males; median age 23.5 years, IQR 1.2 years); and parents of recently transferred young adults with diabetes (n = 3). Main themes were: (a) communication technology; (b) the need for more transition and diabetes education and preparation during transition; and, (c) the importance and need for social and peer support.ConclusionThis study describes specific areas that may improve diabetes transfer and transition from pediatric to adult diabetes care. This information can help inform clinical care delivery for transition and the development of programs, strategies, and interventions to improve transition care.