Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006

SRE Articles in press

Article in Press

Performance Analysis and Implementation of Low Power High Speed Adaptive FIR Filter for Noise Cancellation

This paper presents the performance analysis of energy efficient High Speed adaptive FIR filter for noise cancellation using modified LMS architecture. Synthesis results of adaptive noise cancellation for different CMOS families are concluded in this work. Here, Artix-7, Spartan-6 and Vertex-4 are taken for the most popular adaptive LMS filter for different order as N=8, 16, 32. Presented work is done by using MATLAB...

Author(s):Manish Jaiswal & Anuj Sharma

Article in Press

Assessment of Indigenous Knowledge on High Land Bamboo (Yushania Alpina) Utilization and Management Practices in Banja District Northwestern, Ethiopia

The research was conducted in Banja District, Awi Zone, Amhara Notational Regional state of Ethiopia with aim of assessing and documenting the indigenous knowledge and skills on high land bamboo (HLB) and its management Practices. Five Kebeles were selected based on its potentials and significance to the community. A formal survey was carried out developing questionnaires and a total of 120 households were selected for the...

Author(s):Yenesew Assaye Aligas

Article in Press

Diurnal variation of F2-layer critical frequency under solar activity recurrent conditions during solar cycles 21 and 22 at Ouagadougou station: Prediction with IRI-2012

This paper reports on foF2 data recorded at Ouagadougou ionosonde station (lat : 12,4°N ; long : 358,5°E, dip : 1,43°) and compares with IRI-2012 model results through its two subroutines URSI (Union Radio Scientifique Internationale) and CCIR (Comité Consultatif International des Radio Communications) during recurrent solar activity. Except for the solar cycle maximum period, measured data profiles corroborate with the...

Author(s):Emmanuel W Sawadogo, Jean Louis Zerbo, Nour Ali Mahamat, Frédéric Ouattara

Article in Press

Geometrical Properties for the exact solutions of some Nonlinear PDEs Using A Variation of (G'⁄G)-Expansion Method

One of the best methods for solving NLPDEs is A Variation of (G'⁄G)-Expansion Method to find its exact solutions with geometrical properties. This method is used to solve the modified dispersive water wave (MDWW) equations and the nonlinear Burgers’ Equation to give its validity and advantages. This method is used for solving many problems in mathematical physics.

Author(s):A. R. Shehata and Safaa S.M. abu-amra

Article in Press

Positioning Smallholder Farming in the Agricultural Productivity and Food Security in Resource Limited Sierra Leone

Agriculture is dominated by smallholder farmers who occupy the majority of land, and produce most of the crop and livestock products in Sierra Leone. Nonetheless, the key long-standing challenge of the smallholder farmers is low productivity that stems from the lack of access to markets, credit, and technology, and in recent years these are compounded by the volatile food and energy prices and very recently by the global...

Author(s):Bashiru M. Koroma, Alpha Jalloh, Alhaji Brima Gogra and Musa Aziz Yokie

Article in Press

The Importance of Undergraduate Coursework in Student Success At South Carolina Medical Institutions

The importance of undergraduate coursework in determining medical school student readiness reaches far beyond preparation to take the standardized Medical College Admissions Test (MCAT®). Since medical schools employ a rigorous and fast-paced learning system to instruct prospective medical students on (A) didactic information in the basic sciences and (B) the critical methodology of clinical practice, it is essential for...

Author(s):Halford G. Warlick IV, Gabriel N. Desouza, Megan L. Wander, and Vincent S. Gallicchio

Article in Press

Antimicrobial Activity of Honeys from Ovia North East Local Government Areas in Edo State, Nigeria

Honey is one of the oldest natural products in our environment used as natural alternatives for emerging and re-emerging infectious diseases. This study was carried out to determine the antimicrobial activity of some honey samples collected from Ovia North-East local government area of Edo state Nigeria. Three honey samples were obtained in April 2017 from local commercial producers in Ovia North-East local government area...

Author(s):Jesumirhewe C

Article in Press

Bayesian Multilevel Analysis of Postnatal Care Uitlization in Ethiopia

The postnatal period is defined as the first six weeks after birth; is critical to the health and survival. The study was conducted to determine the key factors of Maternal Postnatal Care using Bayesian multilevel analysis using 7192 mothers aged between 15-49 of EDHS 2016 data. Descriptive statistics revealed that 675 (9.4%) women received postnatal care. The Bayesian multilevel model used to analyze postnatal care...

Author(s):Dereje Bekele Dessie, Abay Sahle

Article in Press

Effects of different culture media on in vitro regeneration of Taro [(Colocasia esculenta (L.) Schott) cv. ‘BolosoI’]: An economically important root crop of Ethiopia

Taro crop [Colocasia esculenta L. (Schott)] is belongs to Araceae family. The main objective of this study was to study the effect of three culture media viz; MS, N6 and B5 on in vitro growth of C. esculenta cv. ‘Boloso I.’ All the media supplemented with 8mg/L BAP and 3 mg/L IAA for multiplication of shoots. Comparison of in vitro rooting was performed by supplementing all the three media with 0.5 mg/L IAA. Highest shoot...

Author(s):Adelegn Bogale

Article in Press

Principal Air Pollutants and Their Effects on Athletes’ Health and Performance: A Critical Review

The aim of this review was to assess the health effects of the criteria air pollutants: Sulfur dioxide (SO2), carbon oxides (COX), nitrogen dioxide (NO2), particulate matter (PM) and ozone (O3) together with photochemical smog and global warming in relation to exercise with particular focus on athletes. In this review respiratory and cardiovascular health impacts of the specified principal air pollutants have been seen. It...

Author(s):Gashaw Tesema Tsegaw, Yitayal Addis Alemayehu

Article in Press

Herbal Practitioners Perception of Collaborative Telediagnosis and Prescription in Herbal Medicine in Nigeria

This study aims to explore Nigerian herbal practitioners' perceptions of the impact of telediagnosis and prescriptions in herbal medicine in prescribe towards improving medical healthcare service to patient at a distance. A descriptive cross-sectional study involving an anonymous electronic survey of a sample of 100 Nigerian herbal practitioners from 8 selected states. A 27-item, 5-point Likert-scale questionnaire...

Author(s):Ogirima Sanni Abubakar Omuya

Article in Press

Characterization of Artemether-lumefantrine liposomes for parenteral administration

Artemisins remain the drug of choice in the treatment of uncomplicated malaria. Liposomes encapsulating artemether and lumefantrine were formulated through the thin-layer evaporation method. The liposomes were evaluated for particle size, polydispersity index, encapsulation efficiency, stability studies using Triton-X. Results show mean particle sizes for the empty liposomes at 120.7 nm +4.52 with polydispersity index (PI)...

Author(s):Onuigbo Ebele

Article in Press

Spectral Analysis of the Residual Magnetic Anomalies over Tambuwal Area of Sokoto Basin, Nigeria

Statistical spectral analysis of the residual magnetic field was employed to determine the depth to magnetic basement rocks within Tambuwal area of Sokoto basin Northwest Nigeria. The study area lies within latitudes 12.20 and 12.50 North and longitudes 4.50 and 5.East. For the purpose of this analysis, the study area was divided into 9 rectangular sections. The spectral analysis reveals two prominent layers; the first...

Author(s):Hassan Aliyu Kamba

Article in Press

MARKOV CHAIN MONTE CARLO ESTIMATION OF PARAMETER OF LINEAR REGRESSION MODEL WITH GENERAL ERROR STRUCTURE

In this paper, we derived the posterior density function of parameters of linear regression model when the various structures of heteroscedasticity consistent covariance estimators developed by White (1980) Mackinnon and White (1985) and and Cribari-Neto (2004) were incorporated. We specify non-informative uniform prior for the parameters of the model . From the joint posterior density function, we derived the marginal...

Author(s):Oseni Bolanle Azeez

Article in Press

Assessment of RF Radiation for FM and TV Band in the Vicinity of different Transmitted Power and Antenna Height

The mushrooming of unauthorized colony due to population explosion in India poses a possible health hazards to people living nearby transmission towers, as RF radiation produces thermal effects and remained under their continuous influence for a long time can produces various health related problems. In this research paper, assessment of electromagnetic waves has been carried out by measuring the received field strength at...

Author(s):Monga Himanshu

Article in Press

Sensor system for a continuously and in real time measurement of soil mechanical and physical properties

The sensor system for the analysis of soil physical and mechanical properties in real time and continuously is a set of electronic circuit made around the Arduino Mega 2560 Rev 03 using the ATmega2560 microcontroller. It consists of a 20x4 alphanumeric display, a 4x4 matrix keypad, a conditioning circuit for strain gauges, a Bluetooth module, two 2.4Ghz RF Modules, two pressure sensors, four distance sensors, an electrical...

Author(s):LIES BOUDHAR, Mahfoud AMARA, Amine Feddal

Article in Press

PRE-SOWING SEED TREATMENT WITH BOVINE URINES ON SEEDLING VIGOUR IN RIDGE GOURD

Ridge gourd (Luffa acutangula (L.) Roxb.) is an important cucurbitaceous vegetable crop widely grown in tropical and subtropical parts of the world. In addition to culinary properties, it has therapeutic properties and is used for extraction of fibres. Seed priming is a simple, low-cost, low-risk intervention and powerful technique for improve seedling emergence, seedling vigour and yields of several crops. The laboratory...

Author(s): singaram ambika

Article in Press

Modelling climate change impact and mitigation actions: a case study of rice productivity in West Africa based on panel data analysis

This paper investigated how climate change can affect paddy rice productivity and proposed a mitigation measure that may be undertaken. The analysis first explores the potential impacts of climate variables on rice yields by using panel data covering the period 1980-2016 for seven countries members of the West African Economic and Monetary Union (WAEMU). It then went on to calculate the investments needed in R&D for...

Author(s):Brice Hoyeton Ainan, Jingdong Luan, Mascimus Senan Soton

Article in Press

Path analysis for the evaluation of climate variables on Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae) development phases in tomato crop

The objective of this study was to evaluate the influence of climatic variables on the population dynamics of the tomato moth Tuta absoluta (Meyrick, 1917), (Lepidoptera:Gelechiidae) through correlations and path analysis, discovering their effects on the main variable in organic and conventional tomato crops (Solanum lycopersicum L.; Solanaceae). We studied the effects of the pheromone on insect phase sampling in two...

Author(s):RUBENS PESSOA DE BARROS

Article in Press

Linear and nonlinear properties of heartbeat time series in obesity

In previous studies, the property of ‘complexity’ was suggested as a systemic profile of a human cardiovascular system. A loss of complexity in heartbeat time series is a significant bio-marker for assessing the aging and dysfunctions of a cardiac system. In different approaches by phase-rectified signal average (PRSA), a low deceleration capacity (DC) in heart rate variability (HRV) demonstrated a high risk of cardiac...

Author(s):Jia-Rong Yeh, Hung-Chi Chang, Shou-Zen Fan

Article in Press

Interaction of salicylic acid and fungi on polyphenols compounds in chickpea seedling

The present study was carried out to evaluate beneficial effect of low level of exogenous salicylic acid (SA) treatment on different response of chickpea (Cicer arietinum L) cultivars, under biotic stress effects seedling stage. In this frame, seeds of chickpea cultivars (ILC 3279) were treated with a range of salicylic acid concentrations (0.05 and 0.5 mM) and subjects to Fusarium oxysporium f. sp. ciceris for eight...

Author(s):Boukraâ D., Belabid L. Benabdelli K., Bennabi F.

Article in Press

Fuzzy logistic regression using bootstrap

In this paper‎, ‎ an adaptive technique for the prediction of binary response variable by combining fuzzy least squares method with statistical logistic regression was proposed‎. ‎Also for each α-cut‎, ‎ bootstrap technique was used to discuss the problem of statistical inference when there was crisp inputs and fuzzy outputs‎. ‎A simulation study and a numerical example in the clinical field is provided to check the...

Author(s):Farzaneh Moradi, Ali Shadrokh

Article in Press

Comparison of network topologies of time series in different frequencies

Complex network theory has stimulated the study of complexities in various kinds of fields. By the algorithm of visibility graph, weekly and daily time series of Shanghai stock index was converted into networks to analyze their characteristics. The overall properties of networks remain similar, while details are different with different levels of details provided by different frequency data. The findings provide evidences...

Author(s):Xiaodan Wang

Article in Press

Bacteriophages and phage products: Applications in medicine and biotechnological industries, and general concerns

Since their discovery in 1928 antibiotics have transformed medicine and saved millions of lives; however, the current global appearance of antibiotic resistance and absence of new antibiotics commercialization to the health sector return to the post-antibiotic era. Today, scientists are working to revive a century old technique of using bacteriophage as an option to currently available antibiotics in management of...

Author(s):Mulugeta Belay, Tesfaye Sisay, Tesfaye Wolde

Article in Press

Evaluation of a local petroleum cement for oil well cementing operations in Algeria

The cementing of oil wells is done using special cement called Class G cement, whose properties meet the requirements of the American Petroleum Institute (API). Although cements are not the ideal material for good sealing in drill holes, there is currently no alternative material available. Algeria, which ranks high among the oil and gas producing countries, has recently begun production of petroleum cement. The aim of...

Author(s):Mehena Oualit

Article in Press

Metal contamination characteristics of water bodies in Ilaje, a riverine community of Ondo State, Nigeria

The study investigated the impact of pollution on surface water bodies in Ilaje area of Ondo state. Water-ways in four communities, namely, Araromi, Ayetoro, Igbokoda and Ugbonla located within Ilaje were selected for the study with the specific aim of establishing information on the metal contamination characteristics of the water bodies. Water samples were collected along the waterways from three sampling points per...

Author(s):Fasinmirin J. T., Omotayo B. A.

Article in Press

Heavy metal studies of commonly consumed food crops (maize, sorghum, potato, yam and cassava) in southwestern Nigeria

Heavy metal accumulation in soil is of concern in agricultural productions due to its adverse effect on food quality and crop growth. This study, therefore, examines the heavy metal concentrations of some commonly consumed foods collected in some parts of southwestern Nigeria. Five food samples (potato, sorghum, maize, yam and cassava) were collected from five different locations and analyzed for metals using standard...

Author(s):Gbadebo A. M., Taiwo A. M.

Article in Press

Comparative performance evaluation of different animal drawn improved seeding equipment for black gram under terrace condition-A case study of Sikkim, India

The black gram in Sikkim is sown in 5960 ha with average yield of 880 kg-ha-1. The sown area (2410 ha) of black gram is maximum in west Sikkim (Gyalshing) district. The black gram sowing (manual practice of broadcasting of seeds) is mostly done in July-August in terraces of Sikkim. The two row animal drawn improved zero till seed drill (weight: 23.7 kg, unit price: Rs. 2700, overall dimension: 730 * 940*735 mm) was tested...

Author(s):Tiwari R. K.

Article in Press

Solar energy and food preservation in Nigeria

As the world population increases geometrically, world food production is not sufficient in meeting the demand of the ever increasing population. Africa is not left out in the increase in food demand, especially Nigeria being the most populous African country. Most times, it is not that food is not available, but how well are we able to preserve the ones available so that they do they perish. Most food preservation methods...

Author(s):Collins N. NWAOKOCHA and Oguntola J. ALAMU

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