Exploration of the factors related to treatment seeking delay among adults diagnosed with acute myocardial infarction

A study to explore the factors related to treatment seeking delay among adults diagnosed with acute myocardial infarction at KMCH, Coimbatore. OBJECTIVES OF THE STUDY: The Objectives were to: Assess the extent of delay for seeking treatment. Explore the factors contributing to treatment seeking delay. Compare factors contributing to treatment seeking delay among patients who had timely treatment and those who had delayed treatment. OPERATIONAL DEFINITIONS: Treatment Seeking Delay: Treatment Seeking Delay is defined as the time interval from the onset of symptom to the arrival at the hospital, which is more than 120 minutes. Factors: Factors refers to demographic, clinical, cognitive, social support factors

Low temperature dye-sensitized solar cells based on conformal thin zinc oxide overlayer on mesoporous insulating template by atomic layer deposition

Low temperature processing of dye-sensitized solar cells (DSCs) is essential to enable commercialization with low cost plastic substrates and diminish the overall manufacturing cost.We report a low temperature processing route for photoanodes where thin ZnO nanoshell is deposited by atomic layer deposition at 150°C, on a mesoporous insulating template. We found that a 6 nm ZnO overlayer on a 3 μm mesoporous nanoparticle Al2O3 template shows a power conversion efficiency of 4.2 % with the standard organic sensitizer (coded Y123) and cobalt bipyridine redox mediator

A Reverse Logistics Network Model for Handling Returned Products

58827Due to the emergence of e-commerce and the proliferation of liberal return policies, product returns have become daily routines for many companies. Considering the significant impact of product returns on the company’s bottom line, a growing number of companies have attempted to streamline the reverse logistics process. Products are usually returned to initial collection points (ICPs) in small quantities and thus increase the unit shipping cost due to lack of freight discount opportunities. One way to address this issue is to aggregate the returned products into a larger shipment. However, such aggregation increases the holding time at the ICP, which in turn increases the inventory carrying costs. Considering this logistics dilemma, the main objectives of this research are to minimize the total cost by determining the optimal location and collection period of holding time of ICPs; determining the optimal location of a centralized return centre; transforming the nonlinear objective function of the proposed model formulation by Min et al. (2006a) into a linear form; and conducting a sensitivity analysis to the model solutions according to varying parameters such as shipping volume. Existing models and solution procedures are too complicated to solve real-world problems. Through a series of computational experiments, we discovered that the linearization model obtained the optimal solution at a fraction of the time used by the traditional nonlinear model and solution procedure, as well as the ability to handle up to 150 customers as compared to 30 in the conventional nonlinear model. As such, the proposed linear model is more suitable for actual industry applications than the existing models.S

Low temperature dye-sensitized solar cells based on conformal thin zinc oxide overlayer on mesoporous insulating template by atomic layer deposition

Low temperature processing of Dye-sensitized Solar Cells (DSCs) is essential to enable commercialization with low cost plastic substrates and diminish the overall manufacturing cost. We report a low temperature processing route for photoanodes where thin ZnO nanoshell is deposited by atomic layer deposition at 150 degrees C, on a mesoporous insulating template. We found that a 6 nm ZnO overlayer on a 3 mu m mesoporous nanoparticle Al2O3 template shows a power conversion efficiency of 4.3% with the standard organic sensitizer (coded Y123) and cobalt bipyridine redox mediator. (C) 2014 Sharif University of Technology. All rights reserved

A study to explore the factors related to treatment seeking delay among adults diagnosed with acute myocardial infarction at KMCH, Coimbatore

Objective: The main aim of the study was to explore the factors causing delay in seeking treatment among adult patients diagnosed with CAAs acute myocardial infarction (AMI) and compare the factors between timely and late treatment seeking groups. Method: A total of 93 subjects were included in the study diagnosed with AMI interviewed within 48 h of hospitalization. Data were collected from onset of symptoms to arrival at hospital on demography, clinical profile, clinical factors, cognitive factors and social support factors. Subjects were categorized in two study groups i.e. timely treatment seeking group (120 min from onset of symptoms). Results: The minimum and maximum time took by subjects to seek treatment was 10 and 5450 min, respectively. The mean pain score of subjects who sought delayed treatment (2.2619) is less than those who sought timely treatment (3.3725). The mean knowledge score (12.2754), mean symptom perception (3.6667), mean perceived seriousness (4.7647) is more in subjects who sought timely treatment than those who sought delayed treatment (5.7381), (1.3095), (1.8333) respectively. The mean family support score (57.4492), mean non-family support score (24.902), mean social support score (48.3002) is more in timely treatment group than in delayed treatment seeking group (42.6829), (4.7619), (29.2138) respectively. Conclusion: Decreased pain, knowledge about AMI, symptom perception, perceived seriousness respectively and inadequate family & non-family support i.e. social support were the factors related to treatment seeking delay among adults diagnosed with AMI

Controlled synthesis of TiO2 nanoparticles and nanospheres using a microwave assisted approach for their application in dye-sensitized solar cells

Rapid and facile synthesis of similar to 7 nm and similar to 100-400 nm nano-structures of anatase titania is achieved by exploiting the chemical nature of solvents through a microwave based approach. After using these nanostructures as a photoanode in dye-sensitized solar cells, a modest yet appreciable efficiency of 6.5% was achieved under the illumination of AM 1.5 G one sun (100 mW cm(-2))

Analysis of Electron Transfer Properties of ZnO and TiO₂ Photoanodes for Dye-Sensitized Solar Cells

Mesoporous TiO₂ nanoparticle films are used as photoanodes for high-efficiency dye-sensitized solar cells (DSCs). In spite of excellent photovoltaic power conversion efficiencies (PCEs) displayed by titanium dioxide nanoparticle structures, the transport rate of electrons is known to be low due to low electron mobility. So the alternate oxides, including ZnO, that possesses high electron mobility are being investigated as potential candidates for photoanodes. However, the PCE with ZnO is still lower than with TiO₂, and this is typically attributed to the low internal surface area. In this work, we attempt to make a one-to-one comparison of the photovoltaic performance and the electron transfer dynamics involved in DSCs, with ZnO and TiO₂ as photoanodes. Previously such comparative investigations were hampered due to the morphological differences (internal surface area, pore diameter, porosity) that exist between zinc oxide and titanium dioxide films. We circumvent this issue by depositing different thicknesses of these oxides, by atomic layer deposition (ALD), on an arbitrary mesoporous insulating template and subsequently using them as photoanodes. Our results reveal that at an optimal thickness ZnO exhibits photovoltaic performances similar to TiO₂, but the internal electron transfer properties differ. The higher photogenerated electron transport rate contributed to the performances of ZnO, but in the case of TiO₂, it is the low recombination rate, higher dye loading, and fast electron injection