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Volume 58, Issue 313, January 2022

About the Cover

Quantum computers are composed of quantum logic circuits that fulfill quantum computation based on quantum mechanics. However, during quantum computation, collapse of information in the circuits due to decoherence is a very subtle problem. In order to obtain exact computing results by preventing such decoherence, simplification of arithmetic logic circuits is important. In this work, we design a simplified Excess-3 Adder that can be available to decimal arithmetic operation. The simplification of the circuit is carried out by removing an operation line from the lately proposed circuit in this context. From a check of the logic process of arithmetic computations for numerical additions, we confirm that the circuit works well. Our circuit is robust from decoherence and consumes low electric power. (Ref: Choi JR, Song JN. Simplified logic circuit design for efficient quantum computation with an Excess-3 Adder. Discovery, 2022, 58(313), 58-62).

Table of Contents

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SCIENCE

Distribution/Spread of Superbug and Potential ESKAPE-B Pathogens amongst Domestic and Environmental Activities: A Public Health Concern

Igere BE, Peter WO, Beshiru A

Potential bacterial pathogens and resistant strains continue to spread and have been implicated in diverse infections of man, animal and plants. Most of these strains have been source-track to inhabit environmental nexus and their spread has become an environmental and public health concern

Discovery, 2022, 58(313), 1-20

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Structural, magnetic and magneto-resistive properties of sputter deposited Ni-Mn-Ga ferromagnetic shape memory thin films

Annadurai A

Ni-Mn-Ga ferromagnetic shape memory alloy thin films were deposited onto well cleaned substrates of Si (100) and glass at two different sputtering powers of 25W and 45 W in argon atmosphere at 0.015 mbar

Discovery, 2022, 58(313), 21-27

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Floral bio-indicator of natural salt lick: keys for the wildlife management in mining areas

Sanath Kumar N, Sanjeet Kumar

Wildlife management & restoration of habitat is difficult in mining areas. The continuous extension of mining activities in a particular landscapes are causes for the loss of wildlife population followed by extinction in mining areas

Discovery, 2022, 58(313), 28-33

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Floral biology and pollination in Diospyros chloroxylon (Ebenaceae) and Hybanthus enneaspermus (Violaceae)

Venkata Ramana K, Lakshminarayana G, Solomon Raju AJ, Ch. Prasada Rao

Diospyros chloroxylon is an evergreen dry season blooming tree species. It is dioecious with male and female flowers, each possessing non-functional opposite sex organ, which is an indication that this sexual system is evolved from hermaphroditism

Discovery, 2022, 58(313), 34-38

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Pollination ecology of three Ipomoea species, I. cairica, I. marginata and I. trilobata (Convolvulaceae)

Lakshminarayana G, Umamaheswara Rao G, Venkata Ramana K, Ch. Prasada Rao, Solomon Raju AJ

Three Ipomoea species, I. cairica, I. marginata and I. triloba included in this study are hermaphroditic climbing or twining species, the first two species are perennials while the last one is an annual

Discovery, 2022, 58(313), 39-43

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ENGINEERING

CBR correlation with index properties of natural soils of selected failed roads in southeastern Nigeria

Apata AC, Obiora IJ, Imoh UU

Poor conditions of subgrade soils have been noted as one of the major causes of pavement failures. The strength of subgrade soils are measured by their CBR values

Discovery, 2022, 58(313), 44-49

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Assessing the Stiffness Sensitivity of Gap Graded Asphalt Concrete

Saad Issa Sarsam

Flexural stiffness of asphalt concrete is susceptible to the environment condition, binder content, and aggregates ingredients. The ability of the flexible pavement to sustain the serviceability against distresses is dependent on the stiffness of the asphalt concrete mixture.

Discovery, 2022, 58(313), 50-57

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TECHNOLOGY

Simplified logic circuit design for efficient quantum computation with an Excess-3 Adder

Jeong Ryeol Choi, Ji Nny Song

Quantum computers are composed of quantum logic circuits that fulfill quantum computation based on quantum mechanics. However, during quantum computation, collapse of information in the circuits due to decoherence is a very subtle problem

Discovery, 2022, 58(313), 58-62

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SOCIAL SCIENCE

The effectiveness of audio-visual on the teaching and learning mathematics in Adeyemi College of education public primary school, Ondo state, Nigeria

Famuagun KS, Akintewe BN, Olademo JOA

Education (formal or non-formal) is an absolute necessity for everybody. Teaching and learning are the essential element in education. This research investigated the effectiveness of audio-visual in teaching and learning Mathematics in Adeyemi College of Education Public Primary School Ondo, Ondo state.

Discovery, 2022, 58(313), 63-67

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The effect of economic recession on Nigeria educational system: the way out

Awodeyi John, Emmanuel Faith Igwe, Emmanuel A

This research examines the effect of the economic turn-down on the educational system of Nigeria and the way forward. The work concentrated fully on seeking the perception of teachers on the impact economic recession has made on the educational system

Discovery, 2022, 58(313), 68-75

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