5,335 research outputs found
Reversible Superconductivity in Electrochromic Indium-Tin Oxide Films
Transparent conductive indium tin oxide (ITO) thin films, electrochemically
intercalated with sodium or other cations, show tunable superconducting
transitions with a maximum at 5 K. The transition temperature and the
density of states, (extracted from the measured Pauli susceptibility
exhibit the same dome shaped behavior as a function of electron
density. Optimally intercalated samples have an upper critical field T and . Accompanying the development of
superconductivity, the films show a reversible electrochromic change from
transparent to colored and are partially transparent (orange) at the peak of
the superconducting dome. This reversible intercalation of alkali and alkali
earth ions into thin ITO films opens diverse opportunities for tunable,
optically transparent superconductors
Pyloric atresia epidermolysis bullosa aplasia cutis syndrome: a case report and literature review
The association between epidermolysis bullosa and congenital pyloric atresia is rare, but is a known distinct clinical entity with autosomal recessive inheritance. We report on a case of a baby girl born by cesarean section at 37 weeks’ gestation to a G7 P7 mother and weighed 2.84 kg. At birth, there was denuded skin over the right leg from the knee joint up to the middle of the right foot. Abdominal radiograph was thus performed and indicated absent gas in the small bowel and single bubble appearance of the stomach. Pyloric atresia was surgically corrected. Electron microscopy of skin biopsies showed junctional epidermolysis bullosa. There was typical nail dystrophy and no corneal lesions; ultrasonography for the renal system was normal. At 4 months of age, the baby required gastrostomy and fundoplication for severe failure to thrive. Six weeks after her second surgical procedure, the patient presented to the emergency room dead; the parents provided a typical scenario of sudden infant death syndrome at home. Examination indicated no signs of child abuse; the parents refused an autopsy exam for the child.Keywords: aplasia cutis syndrome, epidermolysis bullosa, pyloric atresi
Modelling, Identification and Control of A" Magnetic Levitation CE152
43 unstable, it should be linearized at optional operating point and a digital PID controller with a fine tuned parameters is designed to track a small varying input signals. Finally the simulation’s model is validated with the real system, the results show the simulation’s model is adequately represents the real magnetic levitation system
Praziquantel coverage in schools and communities targeted for the elimination of urogenital schistosomiasis in Zanzibar: a cross-sectional survey
© 2015 Knopp et al. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. The attached file is the published version of the article
A Dimension-Adaptive Multi-Index Monte Carlo Method Applied to a Model of a Heat Exchanger
We present an adaptive version of the Multi-Index Monte Carlo method,
introduced by Haji-Ali, Nobile and Tempone (2016), for simulating PDEs with
coefficients that are random fields. A classical technique for sampling from
these random fields is the Karhunen-Lo\`eve expansion. Our adaptive algorithm
is based on the adaptive algorithm used in sparse grid cubature as introduced
by Gerstner and Griebel (2003), and automatically chooses the number of terms
needed in this expansion, as well as the required spatial discretizations of
the PDE model. We apply the method to a simplified model of a heat exchanger
with random insulator material, where the stochastic characteristics are
modeled as a lognormal random field, and we show consistent computational
savings
Identifying enablers and barriers to the implementation of the green infrastructure for urban flood management: a comparative analysis of the UK and China
Climate change and urbanization are increasing the urban flood risk, which can cause adverse on socio-economic and environmental impacts. Green Infrastructure (GI) can reduce stormwater runoff and offer multiple benefits that have been initiated in the United Kingdom (UK) and China, namely Sustainable Urban Drainage Systems (SUDS) and Sponge Cities Program (SCP) respectively. Currently, the implementation of GI is restricted to small spatial (site specific) scale and facing several constraints such as financial investment and governance, that limited its fuller functions and potential. This study aims to identify the barriers and enablers for the adoption of GI by investigating SUDS and SCP in the UK and China, through twelve in-depth semi-structured interviews with stakeholders. Our results found that multiple benefits of the SUDS and SCP were identified, as the main enablers in both countries with reducing the stormwater runoff and alleviating peak discharge in the drainage system, also contributing to social well-being and climate adaptations. Some barriers found the current practices are facing challenges from financial, biophysical and socio-political circumstances in both cases. We conclude that it is beneficial to learn the comparative findings and experiences from both countries, which contributes to stakeholders for improving current GI practices, in prior to achieve more sustainable long-term deliverables
Northeast Ohio GRIDs Monitor
Groups of Regional Industry Drivers (GRIDs) were identified in Northeast Ohio (NEO). GRIDs are wealth-creating industries that have a strong regional specialization, growing output, rising productivity, and local competitive advantage. Overall, the three identified GRIDs—Professional Services, Growing Legacy Manufacturing, and Oil and Gas—contributed nearly 40% ($90.4 billion) to NEO’s total output and employed 20% (369,054 people) of NEO workforce in 2018. This research provides an update on the performance of GRIDs economy focusing on 2017-18 changes and projections for 2019. Calculations in this monitor are based on the data from Moody\u27s Analytics Economy.com
Awareness of hypertension guidelines among family physicians in primary health care
Background: Only 14% of patients on treatment achieve the recommended blood pressure target. Guidelines aim to assist clinicians in the management of patients with hypertension.Objectives: The primary purpose of the study was to survey family physicians(FPs) in Kuwait about their awareness, and to understand better their reasons for not implementing specific guidance within the WHO/ISH guidelines.Methods: This study is a cross-sectional survey that was carried out in the five health regions of Kuwait. All PHC physicians who were currently working as FPs were asked to participate in the study. Data were collected using a structured questionnaire of clinically oriented questions formulated on the basis of the 1999 World Health Organization/International Society of Hypertension (WHO/ISH), as standard reference.Results: The study revealed that 49.1% and 42.1% of FPs were very familiar or somewhat familiar with the guidelines respectively, 92.1% were in agreement, and 79.8% indicated that they always or usually follow these guidelines when treating patients. Regarding the correct choice of the guideline statements, only 8.8% of the FPs choose correctly less than ten of the 20 statements, 64% choose 10 to less than 15, and only 27.2% choose > 15 statements. When asked about perceived patient barriers to blood pressure control, 84.0% of the respondents ranked overcrowded clinics as important or most important barrier to blood pressure control while, 87.4% considered lack of patient knowledge as important or most important barrier. Non availability of the drugs in the clinic was considered by 88.4% of the physicians, and poor adherence to antihypertensive drugs by 90.1%.Conclusion: There is a need to establish nationwide educational and quality monitoring programs to facilitate the correct implementation of hypertension guidelines in PHC clinical practices in Kuwait.Keywords:Â Family physicians; Awareness; Hypertension; Guideline
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