Scientific Research and Essays

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

SRE Articles in press

Phytochemical, proximate, mineral composition and antioxidant property of Moringa oleifera leaf meal from two different locations in Ghana

Article in Press

Moringa oleifera leaf meal (MOLM) was analyzed in triplicate to determine proximate, mineral, energy, phytochemical profile and antioxidant potential. Data was analysed using STATISTIX 9.0. and means separated by least significant difference at 5 %. Dry matter (9.50 - 9.77 %), crude protein (27.42 - 27.72 %), crude fat (4.55 - 4.65 %), crude fibre (10.37 - 10.56 %), ash (12.98 - 13.39 %), carbohydrate (34.21 - 34.74 %) and...

Author(s):William Kwajo Jimah Kwenin, Gabriel Ayum Teye and Frederick Adzitey

Variations in the Physical and Chemical Parameters of a Tropical Rainforest Lake

Article in Press

Oguta Lake is a source of water supply and used for fishing activities in southeastern Nigeria. A study of the physicochemical parameters of Oguta Lake was made from April 2017 to March 2018. Water samples were collected monthly and analyzed for sixteen different physicochemical parameters. They include: current, temperature, transparency, water depth, pH, electrical conductivity and dissolved oxygen which were measured...

Author(s):Uzoka Christopher Ndubuisi, Eyo Joseph Effiong Ibe colman Chikwem Egbuawa Irene Ogechi, Rupuruchukwu Nobert Unegbu and Chijioke Ndukwe Uyo

Estimation of Genetic Analysis by Using Half Diallel Crosses Underlying Eggplant for Tropical Climates

Article in Press

Predicting and evaluating hybrid performance is essential in eggplant (Solanum melongena) breeding. Based on this background, 55 F1 hybrids derived from 11 × 11 half-diallel fashion were evaluated on agronomic and morphological conventional descriptors in two locations. The phenotypic correlation coefficients reveal that fruit production per plant showed a significant positive correlation with all of the studied traits...

Author(s):Debi Rani Datta, Mohd Y. Rafii, Azizah Misran, Mashitah Jusoh, Oladosu Yusuff and. Shalim Uddin

Research investments and output of a large medical school in Thailand

Article in Press

Research productivity is a crucial indicator of medical school performance. Adequate investment in research is crucial to support research activities. This study evaluated the efficacy of the research investment strategies employed by a large medical school in Thailand, a developing nation. We analyzed changes in direct research investments (internal grants, equipment, and human resources) and research output of the school...

Author(s):Nutcharee Thapungaw, Tipnipa Yoochang, Paratama Chamaoot, Sirikanya Thampradid, Ploychanoke Chan-aim, Pornnapa Chuenchom, Sarinya Ngamtipvatana and Prasert Auewarakul

Perceptions of farmers on the intercropping of enset with other crops as an adaptation strategy for climate change in the Kokosa district, south east Ethiopia

Article in Press

Enset has a number of important characteristics that makes it a climate-smart crop, including an underground stem called corm with lateral fibrous roots, cold tolerance, drought tolerance, disease resistance except for bacterial wilt, nematode, and mealy bags on the stem, and tolerance to climate variability and change. This study was initiated to assess the perceptions of farmers on the intercropping of enset with other...

Author(s):Chuluka Bati

Nanoscopic Polyindole DNA-Templated Gas Sensors for Volatile Organic Compounds

Article in Press

In recent times, there has been an increasing demand for inexpensive, accurate, movable and reliable gas sensors that can differentiate between very low concentrations of analytes. Conductive polymers (CPs) such as indole are being explored as promising materials for micro sensors, because of their ability to form a good basis for premise chemical sensors either as a sensing element or as a matrix to deactivate specific...

Author(s):Yahaya Mansur Ibrahim

Total electron content response to two moderate geomagnetic storms in July 2003 at Niamey Station in Niger

Article in Press

The present paper reviews CODG TEC response to the moderate storm of July 26, 2003 and that of July 29 at Niamey station in West African equatorial station (Geo Lat 13 ° 28'45.3 "N; Geo long: 02 ° 10'59.5" E) in Niger. These two moderate geomagnetic storms are of solar wind origin. The study showed an increase in CODG TEC values during the initial phase of the storm and a decrease in CODG TEC values during the main and...

Author(s):Zoundi Christian, Dama Stéphane, Kadidia Nonlo Drabo, Ouattara Frédéric

On the effects of solar flare on geomagnetic components across all latitudes during solar minimum and maximum

Article in Press

The mutual dependence of solar flare and geomagnetic H and Z components during the period of least (2009) and maximum (2002) solar activity using archived and observed data were examined. Solar flares were identified by sudden ionosphric monitor (SIDMON) constructed by staff of Centre for Basic Space Sciences, University of Nigeria, Nsukka, Nigeria. However, SIDMON results were still confirmed by satellite data since it...

Author(s):Ernest Benjamin Ikechukwu Ugwu, Francisca Nneka Okeke

Probability of dry and wet spells over West Africa during the summer monsoon season

Article in Press

The objective of this study is to characterize the conditional probability of single or consecutive dry and wet days in West Africa using the first-order Markov chain approach during the West African monsoon season (June to October). The results show that the probabilities of having a wet day ( ), a wet day preceded by another wet day ( ) and a wet day preceded by a dry day ( ) are stronger in regions (i.e., mountain...

Author(s):Jules Basse, Moctar Camara, Ibrahima Diba, Arona Diedhiou

UV/VIS Spectroscopy and Viscosity Measurement for Determination of Brown Eggs Freshness

Article in Press

The present research aimed to determine the freshness of brown eggs with non-destructive UV/VIS transmission spectroscopy in the wavelength range of 350-1020 nm and viscosity measurement during storage period of 7 days. The eggshell color varied from light yellow-brown to dark red-brown as per human visual perception which were distributed near the edge of the spectral locus of orange to red spectral wavelength region in...

Author(s):Sanghee Kim

Technologies to manage used automotive oil filters in Iran: A review

Article in Press

With regard to this fact that modern society is moving towards being rapidly civilized, the manufacturing of automotive resulted in a massive quantity of Used Automotives Oil Filter (UAOF) emergence. So handling the waste stream procures value-added and underpins the demands in other sectors. The steel request is highly raising with population growth. While dismantling and recycling UAOF produces enough scrap steel to be...

Author(s):Malek Hassanpour

Future prospects and challenges of palm dates production in Sudan

Article in Press

This paper investigates the potential for growing date palms in north Sudan. Sudan ranks eighth within the list of the dates-producing countries. Dates-palm plantation in Sudan goes back to as early as 4000 B.C. The production of date palm in the region faces numerous hindrances affecting, namely low levels of yield, high cost of production inputs along with misuse of resources, product’s price volatility, lack of...

Author(s):Elgilany A. Ahmed and Hamid Hussein M. Faki

Pesticide Use, Practices and Human Health Impact in East Badawacho District, Ethiopia

Article in Press

Pesticide use is a common practice to control pests and disease in farming system, however pesticide cause environmental and human health if not handled properly. The objective of the present study was to assess pesticide use, practice and environmental effect in East Badawacho, Southern Ethiopia. A cross section of agricultural farm workers was asked to fill in a questionnaire on pesticide use, practice and health impact...

Author(s):Tsegaye Misebo, Wondimu Ayano

Image Processing Applied to uv Photo of the Shroud of Turin which Includes the Radiocarbon Test Area

Article in Press

In an earlier paper Morgan applied an image processing technique that is used in analyzing geographic photos to an ultraviolet (uv) photo of the Shroud of Turin taken by Vern Miller in 1978. The technique involved principal component analysis, and it was found that the first principal component explained 97.41% of the variance in the Shroud photo. When the first principal component was calculated for the radiocarbon test...

Author(s):Thomas McAvoy

Structural plasticity and species distribution in a peri-urban mangrove of Southeastern Brazil

Article in Press

The goal of this study was to evaluate the structural plasticity and distribution of mangrove species in the Estuarine System of Greater Vitória (ESGV). Four areas distributed along the estuary were analyzed. Fringe and basin forests were sampled in each station. Concomitantly to the forest sampling, interstitial salinity was measured in the field, and sediment was collected for analysis of organic matter (OM) content....

Author(s):Sávia Soares Pascoalini, Mônica Maria Pereira Tognella & Karen Otoni de Oliveira Lima

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

Article in Press

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

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

Article in Press

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...

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

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

Article in Press

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

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

Article in Press

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

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

Article in Press

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

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

Article in Press

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...

Author(s):Adelegn Bogale

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

Article in Press

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

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

Article in Press

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

Characterization of Artemether-lumefantrine liposomes for parenteral administration

Article in Press

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

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

Article in Press

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

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

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

Article in Press

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

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

Article in Press

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

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

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

Article in Press

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

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

Article in Press

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...


Linear and nonlinear properties of heartbeat time series in obesity

Article in Press

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

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

Article in Press

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.

Fuzzy logistic regression using bootstrap

Article in Press

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...

Author(s):Farzaneh Moradi, Ali Shadrokh

Comparison of network topologies of time series in different frequencies

Article in Press

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

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

Article in Press

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

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

Article in Press

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

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

Article in Press

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.

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

Article in Press

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.

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

Article in Press

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.

Solar energy and food preservation in Nigeria

Article in Press

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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