PURKH (E-Journals)
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How Policies Affect Economic Growth of SMEs- Zimbabwean Script 2016-2020
Get PDFThe Research investigates how policies affect economic growth in Zimbabwe after the dollarization of the economy, using primary data obtained from the employees of companies operating in Zimbabwe as well as the Ministry of Industry, Commerce and Enterprise Development and Zimbabwe National Chamber of Commerce staff members. Data collected was presented quantitatively using tables and other quantitative presentations.
A total sample size of 224 respondents purposively selected to give their honesty opinion on the topic under study. This study used the Logistics (Logit) model to quantify the impact on economic growth caused by Non-tariff barriers (NTBs) to trade in general, particularly the aforementioned SI 64 of 2016.The results of the study revealed that Anti-dumping Laws and, Intellectual property rights, import licenses and customs valuations are respectively 0.9 times and 0.7 times less likely to yield economic growth in the Zimbabwean context.
The findings also suggested that positive improvements in export measures are more than 2 times more likely to ignite economic growth and development and more importantly, a positive strust in implementation of the the Statutory Instrument 64 of 2016 is approximately 1.13 times more likely to yield significant economic growth in general particularly in the Zimbabwean context.
Those economic agents who understood the concept were very receptive and supportive. However, some who felt that their value chain had been interrupted perceived the Statutory Instrument to have done more harm than good since its inception in 2016. Proponents of a negative impact of SI 64 of 2016 on the Zimbabwean economy include; informal cross-border traders and most small to medium local companies (SMEs) who survived on imports for their business
Shapes of the Transmuted Kumaraswamy Pareto Distribution for Varying Parameter Values
Get PDFIn this study, a new generalization of the Pareto distribution is undertaken, by first generalizing the Pareto distribution using the Kumaraswamy method and thereafter transmuting the resulting Kumaraswamy Pareto distribution. A detailed account of the general mathematical properties of the new generalized distribution is presented. The shapes of the Transmuted Kumaraswamy Pareto Density were plotted using R-program. The results show the superiority of the Transmuted Kumaraswamy Pareto distribution over the one parameter Pareto distribution
nIg-Closed Sets
Get PDFCharacterizations and properties of nIg-closed sets and nIg-open sets are given. The main purpose of this paper is to introduce the concepts of sg-nI-locally closed sets, n∧sg-sets, ηsg-nI-closed sets, nIg-continuous, sg-nI-LC-continuous, ηsg-nI-continuous and to obtain decompositions of n*-continuity in nano ideal topological spaces
Determination of Attenuation Coefficients of Some Selected Soil Samples by Using Gamma Energy at 0.360 Mev
Get PDFThe study of attenuation coefficients of various materials is an important part of research in radiation physics, chemistry, human health, and agriculture. In addition, the linear and mass absorption coefficients have a major role in the estimation of absorbed dose use in the medical and radiation dosimetry. In this paper, the liner and mass absorption coefficients, half-value layer, tenth value layer, and mean free path have been determined by performing the experiment of gamma irradiation on soil samples for gamma energy 0.360 MeV using NaI(Tl) detector. Furthermore, the physicochemical properties of the investigated soil samples were measured using standard methods to assess soil quality. Samples of soil were collected from different sites of Aurangabad-India and prepared using standard techniques. The mass attenuation coefficient decreases exponentially with increasing density and confirms the interaction of gamma-ray with different soil samples of various components. The mass absorption coefficient depends on sample density, gamma energy, the chemical composition of the soil, and its physical properties. The experimentally measured values are in good agreement which validates the gamma absorption law. Generally, the absorption coefficients of gamma-ray measured in this study can be used for the determination of gamma-ray interaction with any soil samples. The study has practical importance to know the nature of the soil to be used in agriculture and construction purposes
Adsorption of copper metal ion from aqueous solution by using low cost materials
Get PDFIn this study the matki (Vigna aconitifolia) seed husk was tested for removal of Cu metal ion from solution. Batch adsorption techniques were administered to measure the adsorption characteristics of the matki seed husk for Cu (II) metal ion removal from aqueous solutions. The adsorption isotherms, thermodynamic parameters, kinetics, effect of pH were examined. The results show that the utmost adsorption capacity of matki seed husk was approximately 80.39 % Cu (II) at temperature 305 K and at the initial Cu (II) metal ion concentration of 100 mg/L and at 5.1 pH. Adsorption isotherm data might be well fitted by Frendlich isotherm equation. Thermodynamic studies confirmed that the method was spontaneous and endothermic. The adsorption amounts of Cu (II) metal ion tend to extend with the rise in of pH. The relatively low cost and high capability of the matki seed husk make it potentially attractive adsorbent for the removal of Cu (II) metal ions from waste wate
Numerical Simulation of Robust Recursive Least-Squares Wiener Estimators for Observations with Random Delays and Packet Dropouts in Systems with Uncertainties
No full textThis paper investigates the numerical estimation characteristics of the robust recursive least-squares (RLS) Wiener estimators by using the observed values with random delays, packet dropouts, and out-of-order packets for the systems with or without the uncertain parameters in the system matrix and the observation vector. The estimation characteristics are compared with the existing estimators.
The estimation accuracy of the robust RLS Wiener filter is superior to the RLS Wiener filter and fixed-point smoother.
The estimation accuracy of the robust RLS Wiener filter is superior to the RLS Wiener filter and fixed-point smoother, which are designed for the delayed and uncertain observations, except for the observation noise , provided that the signal exists in the observed values.
In the case of the observations with random delays and without including the uncertain parameters in the system matrix and the observation vector, the estimation accuracies of the robust RLS Wiener filter and fixed-point smoother are superior to the RLS Wiener filter and fixed-point smoother, which are designed for the delayed and uncertain observations.
It should be noted that the robust RLS Wiener estimators do not assume any knowledges of the probabilities of the random delays, and the uncertain parameters
Novel 3,5-Diaryl-4,5-dihydro-1H-pyrazole Derivatives: Synthesis, Antioxidant, Antimicrobial and Docking Study Against Glucosamine-6-phosphate Synthase
No full textIn our attempt to exploring a new class of antimicrobial and antioxidant agents, novel 4,5-dihydro-1H-pyrazole derivatives were synthesized and characterized by some spectroscopic methods such as FTIR, 1HNMR, and GCMS. The antioxidant property for all the synthesized derivatives against DPPH radical was examined using TLC autographic assay then the scavenging activity was determined using the spectroscopic method. The antimicrobial study against several bacterial species (gram +ve and gram –ve) as well as candida Albicans of the potent hits, which exhibited the highest scavenging activity, was determined using a good diffusion method. The docking approach was used to explain the binding affinity of the lead hit four inside the binding site of Glucosamine-6-phosphate Synthase, the target enzyme for the antimicrobial agents
Chemical Profile and Antimicrobial Activity of Essential Oil of Eucalyptus globulus Leaves from Haramaya Campus and Entoto Park, Ethiopia
No full textEucalyptus globulus trees are available abundantly in the highland part of Ethiopia and traditionally used for the treatment of various ailments including influenza, common cold, warts, febrile illness, and headache. In view of its traditional uses, an attempt was made to explore the chemical profile and antibacterial studies of the leaves of Eucalyptus globulus from two district area. The chemical composition of essential oil obtained by steam distillation extraction from the leaves of Eucalyptus globulus was analyzed by GC–MS. The extraction yields of essential oils of the leaves of E. globulus collected from Haramaya Campus, and Entoto Park were 0.23% and 0.24%, respectively. Twenty-one compounds, constituting about 99.20% of the total oil, were identified from the Haramaya University Campus, whereas eighteen compounds, constituting about 98.03% of the total oil, were identified from Entoto Park. The main constituents identified in both areas were 1, 8-cineole (68.25-72.10%), cis-sabinol (12.10-14.31%), Limonene (2.35-2.96%), α-pinene (2.15-2.50%) and α-terpineol (1.62-2.13. The antimicrobial activity of the oil was evaluated against four microorganisms using paper disk diffusion methods. Essential oils extract of Eucalyptus globulus leaves from Haramaya Campus showed comparatively less antibacterial activity than Entoto Park
The Application of Logical Operations and Tabular Transformations in the Base Accents of Hash-Function Algorithms
Get PDFIn the article the stages of transformation of the hashing processes on the structure of the general functional model of the algorithm without the key hash function are defined. The foundations of the application of logical operations and table replacements with the construction of models of basic transformations of the algorithm are revealed. The basics of methods and methods for modeling basic transformations have been developed. Their fundamental applications for creation with new transformations without key hash function algorithms are substantiated
Exact Solution of Grid Produced Turbulence; New Approach
Get PDFA new approach to the kinetic theory of grid produced turbulence in the final period of decay has been proposed. The governing equations are the two-point velocity correlation equations in which the triple-point correlations are neglected as the closure assumption, and the pressure-velocity correlations are discarded by considering the homogeneous turbulence. Without recourse to the isotropic conditions, these equations are found to be separable into a pair of Oseen type equations. As a result, the double velocity correlations are solved exactly as an initial value problem. It has been shown that the decay law for the turbulent energy in the final period becomes in the form,
≺(∆u)2/U2 = 3 [1 + 8(xx0/M)/(2Re)]-5/2,
where ≺(∆u)2≻/U2 is the normalized turbulent energy, U the main flow velocity, x the coordinate in the main flow direction, M the grid mesh size, x0 the point at which the initial condition is given, the constant determined by each the initial condition, and Re the Reynolds number based on U and M. The present theory shows reasonable agreement with the experiment