http://journaljsrr.com/index.php/JSRR/issue/feed Journal of Scientific Research and Reports 2019-09-14T11:30:30+00:00 Journal of Scientific Research and Reports contact@journaljsrr.com Open Journal Systems <p><strong>Journal of Scientific Research and Reports (2320-0227)</strong> aims to publish high quality papers (<a href="/index.php/JSRR/general-guideline-for-authors">Click here for Types of paper</a>) in all areas of ‘scientific research’. By not excluding papers on the basis of subject area, this journal facilitates the research and wishes to publish papers as long as they are technically correct and scientifically motivated. The journal also encourages the submission of useful reports of negative results. This is a quality controlled, OPEN peer reviewed, open access INTERNATIONAL journal.</p> http://journaljsrr.com/index.php/JSRR/article/view/30163 An Opinion Regarding Equivalence Testing for Evaluating Measurement Agreement 2019-09-13T12:29:05+00:00 Manolis Adamakis manosadam@phed.uoa.gr <p>The novel statistical approach ‘equivalence testing’ has been proposed in order to statistically examine agreement between different physical activity measures. By using this method, researchers argued that it is possible to determine whether a method is significantly equivalent to another method. Recently, equivalence testing was supported with the use of 90% confidence interval, obtained from a mixed ANOVA, which I believe is a more robust approach. This paper further discusses the use of this method in comparison to a more well-established statistical analysis (i.e. mixed design ANOVA), as well as various limitations and arbitrary assumptions in order to perform this analysis. The paper concludes with some remarks and considerations for future use in similar approaches.</p> 2019-09-13T00:00:00+00:00 ##submission.copyrightStatement## http://journaljsrr.com/index.php/JSRR/article/view/30164 Annual Effective Dose and Lifetime Cancer Risks Due to Natural Radioactivity in Hand –Dug Well Water of Tai Rivers State, Nigeria 2019-09-14T11:30:30+00:00 C. P. Ononugbo chinyere.ononugbo@uniport.edu.ng N. N. Ndodo <p>The presence of radionuclide in water poses a number of health hazards, especially when the radionuclide is deposited in the human body through drinking water. The aim of this study was to evaluate natural radioactivity and its associated health risk in hand dug well water of Tai Local Government Area of Rivers State, Nigeria by means of gamma spectroscopy techniques and radiation models. The well water was collected from five selected coastal communities of Tai and chemically treated by adding nitric acid and then pre-concentrated further by evaporating to certain levels and kept in marineli beaker properly sealed for 28 days, after which was counted with NaI(Ti) detector. The mean values of specific activity concentration of <sup>40</sup>K, <sup>226</sup>Ra and <sup>228</sup>Ra(<sup>232</sup>Th) were&nbsp; 25.90, 19.21 and 18.50 Bql<sup>-1</sup> respectively. The annual effective doses for different age categories were estimated taking into consideration the ingested dose conversion factors as well as their yearly average water consumption. The average annual effective dose estimated for infants, children, teenagers and adult population were 0.115, 0.027, 0.071 and 0.013 Svy<sup>-1 </sup>respectively. The annual effective dose due to ingestion of the sampled water were above the recommended values by WHO, IAEA and UNSCEAR for the age brackets. The paper presents the overview of the techniques used and the summary of the findings. The result of this study gives the radiological baseline data for effective monitoring of the study area.</p> 2019-09-14T00:00:00+00:00 ##submission.copyrightStatement##