PURKH (E-Journals)
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A Simple Approximation for the Normal Distribution Function via Variational Iteration Method
No full textIn this paper, we obtain some new approximations for the cumulative distribution function of the standard normal distribution via the He’s Variational Iteration Method. For this end, we consider the cumulative distribution function as the unknown function to be determined by solving a certain differential equation of the second-order that the cumulative distribution function satisfied subjected with the certain initial conditions. The correction functional in this approach is constructed here in such a manner that we have one real numerical parameter to be tuned for the best result. Our approximations to the cumulative distribution function are comparable to other approximations found in the literature and has the advantage of being a simple expression, that may have potential applications in several areas of applied sciences. Numerical comparison shows that our approximations are very accurate
On Newton’s Method for Convex Functions and Operators and its Relationship with Contraction Principle
No full textIn this review paper, generally known results on a version of global Newton’s method for convex increasing or decreasing functions and operators, as well as afferent examples and applications, are recalled. Connection with the contraction principle is discussed in detail and applied to approximate , Where is a positive invertible symmetric operator acting on a finite-dimensional Hilbert space, and is a real number. Two numerical examples for symmetric matrices with real coefficients are given. Some other nonlinear matrix or scalar equations are solved approximately
AgentG: A user friendly and engaging bot to chat for e-commerce lovers
No full textRegular customer assistance chatbots are generally based on dialogues delivered by humans. It faces symbolic issues usually related to data scaling and the privacy of one’s information. In this paper, we coeval AgentG, an intelligent chatbot used for customer assistance. It is built using deep neural network architecture. It clouts huge-scale and free publicly accessible e-commerce data. Different from existing counterparts, AgentG takes a great data advantage from in-pages that contain product descriptions along with user-generated data content from these online eCommerce websites. It results in more efficient from a practical point of view as well as cost-effective while answering questions that are repetitive. This helps in providing the freedom to people who work as customer service in order to answer questions with highly accurate answers. We have demonstrated how AgentG acts as an additional extension to the actual stream web browsers and how it is useful to users in having a better experience who are doing online shopping
Application of Electro- Geophysical and laboratary methods in soil quality assessment for lowland rice production in Obubra local government area, cross river state
No full textMaintenance and monitoring of soil fertility is a key issue for sustainable lowland soil management. Vital ecosystem processes may be affected by management practices that change the physical, chemical, and biological properties of the soil. This study used Electrical resistivity (ER) as a nondestructive nor non-invasive method to rapidly determine lowland soil properties in the field. The study explored the correlation between ER and lowland soil properties on twenty plots of rice paddies soil in Obubra. ER measurements were used to determine soil-sampling locations and samples were analyzed in the laboratory for pH, EC, organic matter content (OM), Total Nitrogen (TN), Available phosphorus, Ca, Mg, K, Al3, H, ECEC, BS, Mn, Fe, Sand, Silt, Clay, Bulk density (BD) and texture. Even though the magnitude of correlation was modest, we were able to assess variation in soil properties, having chemically analyzed the sample, which is confirmatory to ER results. The sampling design based on an ER survey allowed us to map basic soil properties with a small number of samples. The result showed that there is a strong positive correlation between Electrical Resistivity and soil properties as R2 = 0.775 and the Correlation between ER and individual soil properties are ECEC (0.69), Ca (0.66), Mg (0.64), clay (0.64), Zn (0.59), Bs (0.53), H (0.4) and Organic Matter (0.46), while Total Nitrogen (TN) (0.25), Available Phosphorus (AP) (0.39), Na (0.30), K (0.26), Al (0.30), Mn (0.30), Cu (0.04), Silt (0.08) and pH (-0.13), Mn (0.30), Cu (0.04), Silt (0.08) and BD (0.17) were weakly correlated with ER. Negative correlation existed between ER and pH (-0.13), EC (-0.06), Fe (-0.12) and sand (0.67). Juxtaposing the Electrical resistivity and statistical results with that of the analyzed samples, it is obvious from the ER sections that the soils are made up of sand, clay, and shale which are sources of the physicochemical parameters obtained from the laboratory analysis
HSPA8, not C3AR1 trapped from SH-SY5Y cells: demonstrated by TLQP-21 avidin agarose affinity chromatography: HSPA8, not C3AR1 trapped by TLQP-21 in SH-SY5Y cells
No full textTo ‘fish out’ HSPA8 as a receptor of human TLQP-21 in human neuroblastoma SH-SY5Y cell; cross-linking, affinity chromatography and mass spectrometry-based protein identification techniques were used (by our group). Before that, in rodent cells, C3AR1 was found as a receptor of rodent TLQP-21 in CHO-K1 cells (by another group). So, it was of very much interest to find out whether C3AR1 can be ‘fished out’ as a receptor of human TLQP-21 in a human SH-SY5Y cell line or not. Here PVDF membrane (which was used for immunohistochemical validation of HSPA8 in SH-SY5Y cell line) was stripped, followed by immunohistochemical validation as before under the same condition, but C3AR1 was not found to bind with human TLQP-21. The findings concluded here that in SH-SY5Y cells, HSPA8 but not C3AR1 was documented as a receptor of human TLQP-21 using avidin agarose affinity chromatography. The significance of the study is that it provides a starting point to signpost: human TLQP-21 exerts its biological activity via HSPA8 (not C3AR1) in human SH-SY5Y cells. The further readout of TLQP-21-HSPA8 signaling can be exploited to explore new horizon in diagnosis and therapies for VGF related human diseases, especially in which TLQP-21 has been shown to affect and related with thereof
Investing in young people in rural areas: an alternative paradigm for rural entrepreneurship development
No full textThe study explores the influence of investing in young people in rural areas on entrepreneurship development with specific reference to Oyo State, Nigeria. Purposive sampling technique was utilized to choose ten rural Local Government Areas (LGAs) in Oyo State, while a simple random sampling technique was used to choose one hundred (100), respondents. The data collection instruments for the study were structured questionnaire designed for the study. Data were analyzed with the aid of correlation analysis and the ordinary least square method of estimation. The outcome uncovers that entrepreneurship education has a significant influence on rural entrepreneurship development. It was also revealed that entrepreneurial programmes have a significant influence on rural entrepreneurship development. Therefore, the study recommends that the government should support the entrepreneurship of young men and women through proper training, access to credit, and other business development services
Estimation of Aquifer Pontential Using Geoelectric and Hydraulic Parameters: A Case Study of Owerri And Some Selected Towns in Imo State
Get PDFThe aim of the study was to estimate the hydraulic characteristics of aquifers in Owerri and some selected towns in Imo State from surface geophysical techniques. Sixteen (16) Schlumberger vertical electrical soundings (VES) were carried out with maximum current electrode separation (AB) of 400 m. The data was acquired using R-plus resistivity meter and processed with Resixtm Interpex Software.
The results of the VES interpretation identified 3-5 geoelectric layers overlying the aquiferous layers: surface soil, lateritic earth, the fine-medium-coarse grained sands with intercalations of clay which constitute the water bearing zone. The curves identified in the study area include HK, KHK, KQQQ, KQHK, AAKH, HKHK, AKHK and HAAK. The results of the qualitative interpretation indicate that majority of the field curves terminated as K-shaped and Q-shaped type curves.
The general shapes suggest that the transverse resistance of the aquifers can be considered as the dominant parameter for the estimation of transmissivity in the study area. The main aquiferous zones occur between the 4th and 6th geoelectric layers with a resistivity range of 409.5 - 12704.7 ohm-m, depths range varying from 39.37 – 207.30m, and layer thickness range between 28.14 and 176.70m.
The hydraulic characteristics of the aquifer estimated from the geoelectric parameters revealed that the aquifer has protective capacities of between 0.008 and 0.085 mhos, transverse resistance ranges from 39573.3 – 1.911E + 06 ohm-, transmissivity values from 1132.26 - 105211.12 /day and hydraulic conductivity ranges from 11.72 – 2448.77 m/day.
The estimated aquifer transmissivity values suggest that aquifer materials are highly permeable to fluid movement within the aquifer. This study has demonstrated the efficacy of surface geophysics in estimating hydraulic characteristics of an aquifer where pumping test data are not available and also its vulnerability to surface contaminants
Harmonic Nature of Maddalam : - A Study
Get PDF The sound samples of different strokes of maddalam are analysed using MIR toolbox. The frequency spectrum, attack and decay parameters are studied. The reasons for the harmonic nature of maddalam are identified
Impact of climate Change on Agriculture and Food Security in Nigeria
Get PDFThis research work examined the impact of Climate change on agriculture and Food Security in Nigeria from 1998 to 2018. The study adopted secondary data and the Ordinary Least Square (OLS) technique, involving a multiple regression model to analyze the causal relationship and coefficient of determination of climate change on food production and food security, as well as considering Agricultural Technology Innovation as alternative solution to the problems of climatic changes in Agriculture. The study employed annual time series data sourced from C.B.N. Statistical Bulletin. Agricultural Output was used as a proxy for Food security (dependent variable). Annual Rainfall and carbon dioxide were used as proxies for Climate change while Value Added in Agriculture and Government Expenditure on Agriculture were used as proxies for Agricultural Technology Innovation. The regression result revealed that there is a negative relationship between the dependent variable Agricultural Output (AO) and the independent variables Average Rainfall (ARF) and Carbon dioxide (Co2), as revealed by the values of their coefficients (-0.341801 and -20.56647). This result indicated that Climate change is not healthy for Food Security in Nigeria. The OLS result also revealed that there is a negative relationship between Agricultural Output and Value Added in Agriculture while there is a positive relationship between Agricultural Output and Government Expenditure as shown by the values of their coefficients (-0.102 and 4.58). The study recommended that the government should take proactive steps in addressing environmental problems which includes effective management of waste, flood and erosion
Game Theory in Political Science and Public Policy: The Case of the Establishment of the United Arab Emirates
Get PDFThe objective of this article is quasi-experimental. By using the logic of game theory to explain the establishment of the state of the United Arab Emirates, the article intends to test the ability of game theory to explain a pre-played game. Although formal game theory is not susceptible to experimentation, game to political science and public policy is like experiments to psychology. Hence this paper attempts to use the already played game of the establishment of the state of the United Arab Emirates as an experiment to answer the question: is the outcome of this game conforms with game theory modeling. Thus, the article models that game as the Extended Battle of Sexes game and use both the normal and extensive forms to address that question