scholarly journals A Study of Schistosomiasis Prevalence and Risk of Snail Presence Spatial Distributions Using Geo-Statistical Tools

10.5772/25339 ◽  
2012 ◽  
Author(s):  
Ricardo J.P.S. ◽  
Fernanda R. ◽  
Luciano V. ◽  
Corina C. ◽  
Guilherme C. ◽  
...  
Author(s):  
D.W. Susnitzky ◽  
S.R. Summerfelt ◽  
C.B. Carter

Solid-state reactions have traditionally been studied in the form of diffusion couples. This ‘bulk’ approach has been modified, for the specific case of the reaction between NiO and Al2O3, by growing NiAl2O4 (spinel) from electron-transparent Al2O3 TEM foils which had been exposed to NiO vapor at 1415°C. This latter ‘thin-film’ approach has been used to characterize the initial stage of spinel formation and to produce clean phase boundaries since further TEM preparation is not required after the reaction is completed. The present study demonstrates that chemical-vapor deposition (CVD) can be used to deposit NiO particles, with controlled size and spatial distributions, onto Al2O3 TEM specimens. Chemical reactions do not occur during the deposition process, since CVD is a relatively low-temperature technique, and thus the NiO-Al2O3 interface can be characterized. Moreover, a series of annealing treatments can be performed on the same sample which allows both Ni0-NiAl2O4 and NiAl2O4-Al2O3 interfaces to be characterized and which therefore makes this technique amenable to kinetics studies of thin-film reactions.


Author(s):  
Robert D. Nelson ◽  
Sharon R. Hasslen ◽  
Stanley L. Erlandsen

Receptors are commonly defined in terms of number per cell, affinity for ligand, chemical structure, mode of attachment to the cell surface, and mechanism of signal transduction. We propose to show that knowledge of spatial distribution of receptors on the cell surface can provide additional clues to their function and components of functional control.L-selectin and Mac-1 denote two receptor populations on the neutrophil surface that mediate neutrophil-endothelial cell adherence interactions and provide for targeting of neutrophil recruitment to sites of inflammation. We have studied the spatial distributions of these receptors using LVSEM and backscatter imaging of isolated human neutrophils stained with mouse anti-receptor (primary) antibody and goat anti-mouse (secondary) antibody conjugated to 12 nm colloidal gold. This combination of techniques provides for three-dimensional analysis of the expression of these receptors on different surface membrane domains of the neutrophil: the ruffles and microvilli that project from the cell surface, and the cell body between these projecting structures.


2017 ◽  
Vol 25 (2) ◽  
pp. 927-960
Author(s):  
Jarod Jacobs

In this article, I discuss three statistical tools that have proven pivotal in linguistic research, particularly those studies that seek to evaluate large datasets. These tools are the Gaussian Curve, significance tests, and hierarchical clustering. I present a brief description of these tools and their general uses. Then, I apply them to an analysis of the variations between the “biblical” DSS and our other witnesses, focusing upon variations involving particles. Finally, I engage the recent debate surrounding the diachronic study of Biblical Hebrew. This article serves a dual function. First, it presents statistical tools that are useful for many linguistic studies. Second, it develops an analysis of the he-locale, as it is used in the “biblical” Dead Sea Scrolls, Masoretic Text, and Samaritan Pentateuch. Through that analysis, this article highlights the value of inferential statistical tools as we attempt to better understand the Hebrew of our ancient witnesses.


Think India ◽  
2019 ◽  
Vol 22 (3) ◽  
pp. 553-562
Author(s):  
Dr. Devarajappa S

The Main objective of the paper is to examine the current trends and progress of the venture capital in India and the paper also highlights the concept and stages of financing of venture capital. To meet the aim objective of the study the researcher used secondary sources. The required secondary information has been collected through various articles, reports, magazines’ and websites. To examine the trends of venture capital in India, IVCA (Indian Venture Capital Association) report is used.  For the purpose of examine the data; the statistical tools like Mean, Standard Deviation, Charts and ANOVA, Correlation coefficient have been employed.   The study concludes that, the venture capital investment has been increasing in India and this is the positive indication for the country, to curb the unemployment, economic empowerment of people through maximizing startups in India


2019 ◽  
Vol 8 (9) ◽  
pp. 22-30
Author(s):  
SONIA HOODA

The study has made an attempt on resource use and economic efficiency of cucumber production under poly-house farming and open field farming. Primary data collected by using purposive sampling technique from selected districts. Sample of 50 farmers (25 Poly-house farmers and 25 Open field farmers) was taken from each district on the basis of availability. Secondary data was collected from Horticulture Department. For data analysis statistical tools average, percentage and Linear Cobb-Douglas Production Function was used. The study found that the yield of cucumber was more under poly-house farming as compare to open field farming system. The reason behind this was long harvesting period and more number of fruits per plant under poly-house farming conditions. The data specifies higher net returns per acre of cucumber under poly-house farming over open field farming, which implicit poly-house farming not only highly profitable but also economically viable as compared to open field farming in study area.


2017 ◽  
Vol 3 (2) ◽  
pp. 30-36
Author(s):  
E. Amankwah, V. Hans-Jürgen

Agriculture in the Upper West region is primarily subsistence and rain-fed, and irrigation practice is significantly furrow andthe use of traditional watering can. This historical approach to agriculture is predicted to suffer severe setbacks due to climatechange. This research therefore explores farmers’ perception of climate change and its impact and how the farmers can cope withthe changing climate. The primary data was gathered through field observation, interviews and administration of questionnairesto about 400 irrigation farmers in three districts of the Upper West region. The data was analysed using 1. Statistical Packagefor Social Sciences (SPSS) and basic statistical tools. It was discovered that 62% of the farmers had no formal education withmajority above 50 years of age. Over 80% have observed rising temperatures and declining rainfall over the last few decades.This has led to higher evaporation and siltation of irrigation dams, higher transpiration of crops and water stress resultingin low crop yield, crop failure and food insecurity. The research also highlights anthropogenic activities that have influencedclimate variability and food production in the region. The research was concluded with suggested strategies to facilitate farmers’adaptation to climate variability.


2015 ◽  
Vol 6 (01-02) ◽  
Author(s):  
P. Paramanandam ◽  
K. Sangeetha

Locus of control reflects the extent to which individuals believe that what happens to them is within their control, or beyond it. The objective of the present study was to study locus of control and employee engagement among the employees of automobile industry. A convenience sample consisting of ninety employees working in automobile industry participated in the study. By administering questionnaires locus of control and employee engagement among the employees were assessed. The collected data was analysed with various statistical tools like Mean, Standard Deviation, Correlation, regression and ANOVA tests. A higher level of locus of control was observed among the above 50 years age group and a higher level of employee engagement among the 41-50 age group. A higher level of locus of control and employee engagement was observed among the above 30000 income group. There were significant differences in locus of control and employee engagement among the respondents of different income groups. There was a significant positive correlation between locus of control and employee engagement. Approximately 18% of the variance of employee engagement was explained by locus of control.


2019 ◽  
Vol 4 (1) ◽  
pp. 185
Author(s):  
Ya’ti Ikhwani Nasution

The purpose of this study is to find out whether there is an influence of Islamic business ethics with the variables of unity, equilibrium, free will, responsibility, benevolence and the welfare of traders in the Pusat Pasar Medan. This research is a quantitative research and the analysis used is multiple regression analysis. The data collection technique used is the questionnaire method obtained directly from the respondent, namely the Pusat Pasar Medan Trader. Analyzed using statistical tools, namely SPSS Version 22. Based on the results of data processing has shown that there is a significant influence as partially and simultaneously among the unity, equilibrium, free will, responsibility and benovelence towards the welfare of traders in the Medan Market Center. For unity, free will, responsibility and benovelence have a positive effect on the welfare of traders in Medan Market Center. While the equilibrium variable has a negative effect on the welfare of Medan Market Center traders. The adjusted R square value is 0.345. This means that 34.5% increase in welfare can be explained by independent variables, namely the variables of unity, equilibrium, free will, responsibility and kindness. While 65.5% is explained by other factors.


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