916 research outputs found
Structural origins of electronic conduction in amorphous copper-doped alumina
We perform an {\it ab initio} modeling of amorphous copper-doped alumina
(a-AlO:Cu), a prospective memory material based on resistance
switching, and study the structural origin of electronic conduction in this
material. We generate molecular dynamics based models of a-AlO:Cu at
various Cu-concentrations and study the structural, electronic and vibrational
properties as a function of Cu-concentration. Cu atoms show a strong tendency
to cluster in the alumina host, and metallize the system by filling the band
gap uniformly for higher Cu-concentrations. We also study thermal fluctuations
of the HOMO-LUMO energy splitting and observe the time evolution of the size of
the band gap, which can be expected to have an important impact on the
conductivity. We perform a numerical computation of conduction pathways, and
show its explicit dependence on Cu connectivity in the host. We present an
analysis of ion dynamics and structural aspects of localization of classical
normal modes in our models
Do more with less: managing public investment in federal Nepal
Nepal's success or failure hinges on how effectively the governments at all levels can deliver public services, which demands proper fiscal and investment management. Mukti Subedi and Bishal K Chalise write that the national framework for public financial management, particularly in the context of transition to federalism, is non-existent
Making seismology accessible to the public in Nepal: an earthquake location tutorial for education purposes
Earthquakes become a hot topic for discussion in Nepali communities when a big local event happens. Beyond the
seismic monitoring and research, efforts to improve the populationâs preparedness or to reduce earthquake related risks are
limited, and there is a gap between scientific community and society. To establish the missing link between seismology
and citizens we have initiated an educational approach called Seismology at School in Nepal and a total of 30 low-cost
seismometers have been installed in schools. The program is engaging the public on earthquake related activities and found
to be effective in raising the awareness levels of children, promoting broader earthquake learning in the community, thus
improving the adaptive capacities and preparedness for future earthquakes. The aim of this work is to present a simple
tutorial of earthquake location mainly for Nepali citizens and school teachers. We describe procedures for computing
an earthquake epicenter using an open and user-friendly software, Seisgram2K. This tutorial helps the public to have
first-order information on earthquakes, by allowing to locate epicenters, which will increase the frequency of earthquake
discussion in the community. Open seismic data and the earthquake location tutorial helps to inspire the next generation to
study Earth sciences, which is very important and required for earthquake prone countries, like Nepal
TQM In Small And Medium Scale Manufacturers: Development Of Measurement Instruments
The objective of our paper is to identify factors and develop constructs that could be used to develop a conceptual Total Quality Management (TQM) model that is applicable to small and medium scale manufacturers in the United States. The data for this study was collected from a mail survey targeted to managers in the manufacturing plants. Responses were analyzed and factor analysis was used to develop measurement instruments
Unusual case of failure to thrive: Type III Bartter syndrome.
Bartter syndrome Type III is a rare autosomal recessive disorder resulting from an inherited defect in the thick ascending limb of the loop of henle of the nephrons in kidney. The typical clinical manifestations in childhood are failure to thrive and recurrent episodes of vomiting. Typical laboratory findings which help in the diagnosis are hypokalemic metabolic alkalosis, hypomagnesemia and hypercalciuria. We report a case of Type III Bartter syndrome not responding to repeated conventional treatment of failure to thrive
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Improving post-partum family planning services provided by female community health volunteers in Nepal: a mixed methods study.
BACKGROUND: Family planning services in the post-partum period, termed post-partum family planning (PPFP) is critical to cover the unmet need for contraception, especially when institutional delivery rates have increased. However, the intention to choose PPFP methods such as post-partum intrauterine devices (PPIUD) remains low in countries such as Nepal. Community health workers such as Female Community Health Volunteers (FCHVs) could play an important role in improving the service coverage of PPFP in Nepal. However, their knowledge of PPFP and community-based services related to PPFP remain unclear. This study aims to assess the effect on community-based PPFP services by improving FCHV's knowledge through orientation on PPFP. METHODS: We conducted this mixed-methods study in Morang District in Nepal. The intervention involved orientation of FCHVs on PPFP methods. We collected quantitative data from three sources; via a survey of FCHVs that assessed their knowledge before and after the intervention, from their monthly reporting forms on counseling coverage of women at different stages of pregnancy from the communities, and by interviewing mothers in their immediate post-partum period in two selected hospitals. We also conducted six focus group discussions with the FCHVs to understand their perception of PPFP and the intervention. We performed descriptive and multivariable analyses for quantitative results and thematic analysis for qualitative data. RESULTS: In total, 230 FCHVs participated in the intervention and their knowledge of PPFP improved significantly after it. The intervention was the only factor significantly associated with their improved knowledge (adjusted odds ratioâ=â24, PÂ <â0.001) in the multivariable analysis. FCHVs were able to counsel 83.3% of 1872 mothers at different stages of pregnancy in the communities. In the two hospitals, the proportion of mothers in their immediate post-partum period whom reported they were counseled by FCHVs during their pregnancy increased. It improved from 7% before the intervention to 18.1% (Pâ<â0.001) after the intervention. The qualitative findings suggested that the intervention improved their knowledge in providing PPFP counseling. CONCLUSION: The orientation improved the FCHV's knowledge of PPFP and their community-based counseling. Follow-up studies are needed to assess the longer term effect of the FCHV's role in improving community-based PPFP services
Enhancing Forecasting Capability of Excel with User Defined Functions
We have developed seven user defined functions (UDF) related to forecasting. The first four functions are for exponential smoothing. These are simple exponential smoothing, Holtâs fit, Winterâs method and Holt-Winter method. The next three functions can be used to calculate forecasting errors. These errors are mean square error (MSE), mean absolute difference (MAD) and mean absolute percentage error (MAPE). These UDFs eliminate the need for intermediate steps in exponential smoothing and error calculations. These functions are as easy to use as other forecast related (statistical) functions, such as âTrendâ and âCorrelâ. Moreover, our functions present users with choices. They can choose to provide (or not to provide) initial values and seasonal indices (where applicable). These characteristics make our functions user-friendly and flexible, and therefore enhance the power and usefulness of excel for forecasting
Decision to use herbicide in wheat production by the farm households in Nepal: A probit regression analysis
The use of herbicides in wheat production is increasing in Nepal mainly due to labor shortage and higher wage rates, even if available. However, little information is available on what factors determine the use of herbicides. This study explored the major factors that affect the decision to use herbicide by the wheat farmers. The semi-structured interview schedule was administered to 343 farmers from four major wheat-growing districts. The study employed a probit regression model to identify the factors that influenced the decision to use herbicides. Educations, membership, migration, wheat cultivated area, amount of urea use were identified as the significant factors influencing the decision of farmers to use herbicides. Herbicides user farmers produced 220 kg more wheat grain yield from one hectare of land compared to non-users. This study suggests that the wheat yield of Nepal could be increased through adopting better weed management techniques
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