Content Vol. 2 N 4, 2016

Pages 196 - 253




Relationship between supplier appraisal and procurement performance in public universities in western Kenya; James O. Yambo, Fredrick Odoyo, N. B. Okelo; Inter. J. Acad. Stud.  2(4):(2016)196-206

Abstract:
Despite the fact that supplier appraisals are done annually in all the Kenyan public Universities, procurement departments are still not meeting the expected five rights of procurement, that is, failure in delivering right quality goods/services, right quantity, right price, timely deliveries and from the right source. This research addressed this gap by conducting a correlational study to find out what the stakeholders of the western Kenya public universities do about the concept of supplier appraisal and its relationship with procurement performance. The study found out that there is strong relationship between supplier appraisal and procurement performance.

Key words:
Supplier; Appraisal; Procurement; Performance.


On theory and applications of mathematics to security in cloud computing: a case of addition-composition fully homomorphic encryption scheme ; Richard O. Omollo, N. B. Okelo; Inter. J. Acad. Stud.  2(4):(2016)207-217

Abstract:
Addition-Composition Fully Homomorphic Encryption is given in this paper to solve data security equation in cloud computation. An earlier attempt to solve security problem has been proposed by Craig Gentry, who combined additive and multiplicative operations, using lattice-based cryptography. Its construction started as a somewhat homomorphic encryption scheme that evaluates low-degree polynomials over encrypted data. He then modified it to make it bootstrappable and showed that any bootstrappable fully homomorphic encryption scheme can be converted into a fully homomorphic encryption. Subsequent efforts to improve on Craig’s work still favor his approach, i.e.  bootstrapping homomorphic cryptosystems with noisy ciphertexts into fully homomorphic cryptosystems. The approach in the design of the scheme in this paper is based on combining additive and composition properties making it complex to compromise. Finally, the scheme enables secure computation of cloud data without exposing it to deliberate risk.

Key words:
Homomorphism; Encryption; Addition; Composition; Cloud computing.


Biology and eco-friendly control of Amaranths pests, Hymenia recurvalis Fabricius and Psara basalis Walker (Lepidoptera: Crambidae); A. Jeyasankar, D. Gokilamani;  2(4):(2016)218-230

Abstract:
Present investigation to evaluate the biology and ecofriendly control of amaraths pests, Hymenia recurvalis Fabricius and Psara basalis. The life cycle of H. recurvalis were studied and complete life cycle lasted 3-4 weeks, with egg, larval and pupal stage of 3-4, 10-16 and 8-12 days, respectively. The larva emerges from the eggs within two days. The complete life-cycle of P. basalis lasted 4-5 weeks, with egg, larval and pupal stage of 3-5, 12-19 and 9-14 days, respectively. The larva emerges from the eggs within two days. Different plant extracts of  N. oleander, G. globosa, A. indica, P. pinnata, V. negundo  were used for antifeedant activitity against H. recurvalis and P.basalis. The Neem extact (A. indica) exhibited highest antifeedant on H. recurvalis (52.70%) and P.basalis (49.85%), when compared with other plant extracts. The result suggests that neem extract showed effective antifeedant for both the larvae of H. recurvalis and P. basalis. Hence, it may suggest it can use for controlling amaranths pests. Knowing the life cycle of pest insects it may help farmers to control it at the most vulnerable stage (larval) in the cycle.

Key words:
Biology; Amaranths; Hymenia recurvalis; Psara basalis; Antifeedant activity; Azadirachta indica; Vitex negundo; Pongamia pinnata; Gomphrena globosa;  Nerium oleander.


An Overview of Health, Education and Employment Status among Socio Religious Group of Uttar Pradesh, India; Dastigr Alam, Mohammed Teshome Goshu; 2(4):(2016)231-245

Abstract:
Uttar Pradesh is one of most populous and socio-economically poor state in India. This study tried to assess the health, education and employment status of socio-religious groups in Uttar Pradesh. The study found that there are socio-religious disparities in these three indicators.  Muslims who have the second highest population in the state have relatively registered a low level of status in most indicators of health, education and employment, which shows their level of deprivation. However, some social groups who are in minority in the state have better status in some indicators.

Key words:
Health; Education Employment; Socio-religious; Uttar Pradesh.

Construction and selection of double sampling plan indexed through acceptable quality level and limiting quality level; S. Santhi, C. Ponnuraja; 2(4):(2016)246-253

Abstract:
As a result of fact and as well as due to the technological development, production processes are well designed in such a way that the products are in perfect condition, so that the number of zero defects will be found more in those cases. However, random fluctuations in the production processes may lead some products to an imperfect state. In this juncture, the zero-inflated Poisson (ZIP) distribution is the appropriate probability distribution to describe such circumstances distinctly. The ZIP distribution is being capable of viewed as a mixture of a distribution which degenerates at zero and a Poisson distribution. This paper mainly focused for the procedure of construction and selection of Double Sampling Plan (DSP) indexed through Acceptable Quality Level (AQL) and Limiting Quality Level (LQL) using Zero Inflated Poisson (ZIP) distribution. The Zero Inflated Poisson (ZIP) distribution is used here as the base line distribution which is also used as an alternative to the classical Poisson distribution. The plans are constructed and compared accordingly for the efficiency in selection of Double Sampling Plan (DSP) between Acceptable Quality Level (AQL) and Limiting Quality Level (LQL). Tables are constructed for easy selection in accordance with this plan.

Key words:
Acceptable Quality Level; Limiting Quality level; Zero Inflated Poisson (ZIP) distribution; Double Sampling Plan (DSP); Operating Characteristic Curve (OC).

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