Abstract:Teff (Eragrostis tef (Zuccagni)) is an important food security crop in Ethiopia and the East African Highlands. The principal use of teff grain for human food in Ethiopia is in the form of injera. The levels of essential and non-essential metals in the white teff grains collected from Bure, Debre Markos and Bahir Dar (Ethiopia) were determined by using microwave plasma-atomic emission spectroscopy (MP-AES). After proper sample pretreatment, 5 mL HNO₃ : 1 mL HClO₄, 240 ^oC and 2:30 h were the optimized digestion conditions.
The overall mean concentrations determined (mg/kg, dry weight) were in the ranges of Al (713-1513) > Fe (252-1195) > Ca (233-348) > Zn (69-102) > Mn (20-45) > Cu (13-15) > Pb (1.8-2.8) > Cd (0.8-1.8). In this study Al was determined but not studied by the other reported literatures. Similarly Cd was detected in this study but not by the other reported methods, this is due to the sensitivity differences of the instruments. The accuracy of the optimized procedure was evaluated by analyzing the digest of the spiked samples with standard solution and the percentage recoveries varied from 92-104%. One way ANOVA indicated that there is no significance difference between the mean concentrations of Cu and Mn among the white teff samples but there is significant difference for the other studied metals at 95% confidence level.
Keywords:Microwave Plasma Atomic Emission Spectroscopy (MP-AES); Minerals;  Optimization; Recovery; White teff grain (Eragrostis tef (Zuccagni)).

Title:LEVELS OF SELECTED METALS IN WHITE TEFF GRAIN SAMPLES COLLECTED FROM THREE DIFFERENT AREAS OF ETHIOPIA BY USING MICROWAVE PLASMA ATOMIC EMISSION SPECTROSCOPY (MP-AES)
Author:Abraha Gebregewergis
ISSN 2394-9651
International Journal of Novel Research in Physics Chemistry & Mathematics
Novelty Journals

Abstract:In this work we present a simple relation for calculation of mass stopping power (in MeVcm²/g) of protons in protons energy range 1-200MeV in some biological human body substances such as Water, Tissue, Muscles and bones. The proposed relations have been described in terms of proton energy only. A good  agreements have been found between our simplified values for mass stopping power of protons in Water, Tissue, Muscles and bones and that of Hemalata.
Keywords:  stopping power, Proton energy.

Title:Stopping Powers of Protons in Biological Human Body Substances (Water, Tissue, Muscles and Bones)
Author:Khalda T. Osman
ISSN 2394-9651
International Journal of Novel Research in Physics Chemistry & Mathematics
Novelty Journals

Abstract:Let p(x) be a polynomial of degree 1 or higher with real coefficients, and let R be the arithmetic mean (i.e., the average) of the zeros of p(x).  Then, we define the centre of the graph of p to be the point whose coordinates are (R, p(R)).  In this paper, we provide a partial answer to the question posed in its title. 

Title: Is there a relationship between the formula for the zeros of a polynomial and the coordinates of the centre of its graph?
Author: Professor Ronald Skurnick, Professor Christopher Roethel
ISSN 2394-9651
International Journal of Novel Research in Physics Chemistry & Mathematics
Novelty Journals
 

Abstract:In the attached article, the authors present a recursive algorithm that uses definite integration to generate formulas for the sum of positive integral powers of the first n positive integers.
Keywords:recursive algorithm, sums of powers, Integration.

Title: A RECURSIVE ALGORITHM FOR SUMS OF POWERS USING INTEGRATION
Author: Ronald Skurnick, Christopher Roethel
ISSN 2394-9651
International Journal of Novel Research in Physics Chemistry & Mathematics
Novelty Journals