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Importantly, all relationships were contingent upon the emotional valence of each Weibo post. © 2020 Published by Elsevier Ltd.Present study considers the situation where the removal of population is adopted as a prevention measure for isolating the susceptible population from an infected region to reduce the disease prevalence. this website To investigate the scenario, a dynamic error based method, Z-type control is applied in an SI type disease model with the aim of achieving a predetermined disease prevalence. The controlled system is designed by introducing a new compartment (the population in an infection-free region) in the uncontrolled system to capture the removal of susceptible population from the infected region to an infection free region. By performing numerical simulations, our study shows that using Z-control mechanism, the removal of susceptible to an infection free region can effectively achieve a predetermined disease prevalence. The removal rates required for achieving a specific reduction in infected population for different levels of disease endemicity are quantified. Furthermore, the global sensitivity analysis (PRCC) is also performed to have a more clear insights on the correlations of the control parameter with the model parameters. © 2019 Elsevier B.V. All rights reserved.Background The emergence of many infectious diseases has been of serious public health implication in the 21st century. Hospital preparedness is a key step in strengthening a country's ability to address any public health emergency of international concern caused by these diseases. In India, because 80% of the health-care utilization happens in the private hospitals, it is of at most importance to assess the preparedness level of these hospitals against emerging infectious diseases. Methods The study was a cross-sectional study, and hospitals which provided consent were included. The estimated participants for the study were 54. Results The results were expressed in a descriptive manner. For the purpose of analysis, the questionnaire was redistributed based on the monitoring and evaluation framework of International Health Regulations and its core capacities. It was found that there was a need to enhance the preparedness of the hospitals in the response against emerging infectious diseases. There were gaps in the implementation of various plans and protocols for staff training, risk communication, surge capacity, laboratory capacity, and infection control in the hospitals. Conclusion The findings were suggestive of a need for preparedness of the hospitals against the upsurge of emerging infectious diseases. © 2020 Director General, Armed Forces Medical Services. Published by Elsevier, a division of RELX India Pvt. Ltd.Background In India, the SARS-CoV2 COVID-19 epidemic has grown to 1,251 cases and 32 deaths as on 30 Mar 2020. The healthcare impact of the epidemic in India was studied with a stochastic mathematical model. Methods A compartmental SEIR model was developed, in which the flow of individuals through compartments is modeled using a set of differential equations. Different scenarios were modeled with 1000 runs of Monte Carlo simulation each using MATLAB. Hospitalization, ICU requirements and deaths were modeled on SimVoi software. The impact of Non-Pharmacological Interventions (NPI) including social distancing and lockdown on checking the epidemic was estimated. Results Uninterrupted epidemic in India would have resulted in over 364 million cases and 1.56 million deaths with peak by mid-July. As per the model, at growth rate of 1.15, India is likely to reach approximately 3 million cases by 25 May, implying 125,455 (±18,034) hospitalizations, 26,130 (±3,298) ICU admissions and 13,447 (±1,819) deaths. This would overwhelm India's healthcare system. The model shows that with immediate institution of NPIs, the epidemic might still be checked by mid-April 2020. It would then result in 241,974 (±33,735) total infections, 10,214 (±1,649) hospitalizations, 2,121 (±334) ICU admissions and 1,081(±169) deaths. Conclusion At current growth rate of epidemic, India's healthcare resources will be overwhelmed by end-May. With the immediate institution of NPIs, total cases, hospitalizations, ICU requirements and deaths can be reduced by almost 90%. © 2020 Director General, Armed Forces Medical Services. Published by Elsevier, a division of RELX India Pvt. Ltd.In this paper, we consider the problem of accelerating the numerical simulation of time dependent problems by time domain decomposition. The available algorithms enabling such decompositions present severe efficiency limitations and are an obstacle for the solution of large scale and high dimensional problems. Our main contribution is the improvement of the parallel efficiency of the parareal in time method. The parareal method is based on combining predictions made by a numerically inexpensive solver (with coarse physics and/or coarse resolution) with corrections coming from an expensive solver (with high-fidelity physics and high resolution). At convergence, the algorithm provides a solution that has the fine solver's high-fidelity physics and high resolution. In the classical version, the fine solver has a fixed high accuracy which is the major obstacle to achieve a competitive parallel efficiency. In this paper, we develop an adaptive variant that overcomes this obstacle by dynamically increasing the accuracy of the fine solver across the parareal iterations. We theoretically show that the parallel efficiency becomes very competitive in the ideal case where the cost of the coarse solver is small, thus proving that the only remaining factors impeding full scalability become the cost of the coarse solver and communication time. The developed theory has also the merit of setting a general framework to understand the success of several extensions of parareal based on iteratively improving the quality of the fine solver and re-using information from previous parareal steps. We illustrate the actual performance of the method in stiff ODEs, which are a challenging family of problems since the only mechanism for adaptivity is time and efficiency is affected by the cost of the coarse solver. © 2020 Elsevier B.V. All rights reserved.The rapid diffusion of social media is ushering in a new era of crisis communication. To enhance our understanding of the social-mediated dialogue between organizations and their publics in crises of China, this study conducts a content analysis of 61 relevant journal articles published in 2006-2018. Results of this research present an overview of ongoing research trends such as theoretical frameworks and methodological preferences. This research also explores how the unique Chinese social media characteristics affect the dialogue between types of organizations and their publics. Contextual factors such as face and favor, relationship (Guanxi) and sentiment (Renqing), and the centralized political system that may facilitate/inhibit dialogue in crises of China are identified as well. Finally, this study suggests promising new directions such as a scholarly assessment tool for the social-mediated crisis communication research in China. © 2019 Elsevier Inc. All rights reserved.SARS-CoV2 infection, also known as COVID-19 (coronavirus infectious disease-19), was first identified in December 2019. In Spain, the first case of this infection was diagnosed on 31 January, 2020 and, by 30 March 2020, has caused 7340 deaths, especially in the elderly. Due to the rapidly evolving situation regarding this disease, the data reported in this article may be subject to modifications. The older population are particularly susceptible to COVID-19 infection and to developing severe disease. The higher morbidity and mortality rates in older people have been associated with comorbidity, especially cardiovascular disease, and frailty, which weakens the immune response. Due to both the number of affected countries and the number of cases, the current situation constitutes an ongoing pandemic and a major health emergency. Because Spain has one of the largest older populations in the world, COVID-19 has emerged as a geriatric emergency. This document has been prepared jointly between the Geriatric Cardiology Section of the Spanish Society of Cardiology and the Spanish Society of Geriatrics and Gerontology. © 2020 Published by Elsevier España, S.L.U. on behalf of Sociedad Española de Cardiología.Targeting the aberrant epidermal growth factor receptor (EGFR) signaling pathway is an attractive choice for many cancers (e.g., non-small cell lung carcinoma (NSCLC) and head and neck squamous cell carcinoma (HNSCC)). Despite the development of promising therapeutics, incomplete target engagement and acquired resistance (e.g., mutagenesis and intracellular signaling pathway rewiring) ensure that curative options still elude patients. To address limitations posed by standard drag evaluation assays (e.g., western blot, bulk plasma monitoring, immunohistochemistry), we have developed a novel dynamic, fluorescence-based platform termed intracellular paired agent imaging (iPAI). iPAI quantifies intracellular protein target engagement using two matched small-molecule, cell membrane-permeable agents one targeted to the protein of interest and one untargeted, which accounts for non-specific therapeutic uptake. Currently, our iPAI panel includes successfully characterized tyrosine kinase inhibitors targeting the kinawill improve understanding of current limitations in personalized cancer therapy.The synthesis of the metalloligand Ta(κ2-NP)3Cl2 (NP = 2-diphenylphosphinopyrrolide) and its coordination chemistry with group 9 and 10 metals is reported. Treatment of Ta(κ2-NP)3Cl2 with group 9 and 10 metals resulted in clean formation of the heterobimetallic complexes Cl2Ta(μ2-NP)3M (M = Ni (2), Pd (3)) or Cl2Ta(μ2-NP)3MCl (M = Rh (4), Ir (5)). Each pair of complexes is isostructural and contains three phosphinopyrrolide ligands that bridge the metal centers. The d10 or d8 complexes are all diamagnetic and X-ray crystallographic analysis reveals similarly short metal-metal distances, ranging from 2.2979(5) Å to 2.4366(2) Å. Despite the similar bonding metrics in 2-5, treatment with an L type donor (2,6-dimethylphenylisocyanide (CNXylyl)) reveals 3 different coordination geometries in TaNi(CNXylyl) (6), TaPd(CNXylyl) (7), and TaIr(CNXylyl) (8). While complexes 6, 7, and 8 all bind the isocyanide at the late metal, ligand rearrangements are observed in the first row complex 6. Complex 7 binds the isocyanide in the axial position while equatorial binding is observed in 8. All isocyanide adducts maintain close metal-metal contacts in the solid state.Researchers are taking great interest in the synthesis and characterization of MnZn ferrites due to their wide range of applications in many areas. MnZn ferrites are a class of soft magnetic materials that have very good electrical, magnetic and optical properties. The properties of MnZn ferrites include high value of resistivity, permeability, permittivity, saturation magnetization, low power losses and coercivity. The above mentioned advantageous features of MnZn ferrites make them suitable for the use in various applications. In biomedical field these ferrites are used for cancer treatment and MRI. MnZn ferrites are also used in electronic applications for making transformers, transducers and inductors. These ferrites are also used in magnetic fluids, sensors and biosensors. MnZn ferrite is highly useful material for several electrical and electronic applications. It finds applications in almost every household appliances like mobile charger, LED bulb, TV, refrigerator, juicer mixer, washing machine, iron, microwave oven, mobile, laptop, desktop, printer and so on.
Website: https://www.selleckchem.com/products/sch772984.html
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