PQ TREES, CONSECUTIVE ONES PROBLEM AND APPLICATIONS

A PQ tree is an advanced tree–based data structure, which represents a family of permutations on a set of elements. In this research article, we considered the significance of PQ trees and the Consecutive ones Problem to Computer Science and bioinformatics and their various applications. We also went further to demonstrate the operations of the characteristics of the Consecutive ones property by simulation, using high level programming languages. Attempt was also made at developing a PQ tree–Consecutive Ones analyzer, which could be instrumental not only as an educative tool to inquisitive students, but also serve as an important tool in developing clustering software in the field of bioinformatics and other application domains, with respect to solving real life problems

HIERARCHICAL MODELLING OF INDOOR AND OUTDOOR (RESIDENTIAL) RADON DATA (RRD)

This work, proposes a Hierarchical Modelling (HM) for the indoor and outdoor Residential Radon Data (RRD). Indoor RRD and outdoor RRD are seen as distinct «¤??hierarchies«¤?? of carcinogenic radioactive radon and both hierarchies constitute the least exposure that can be experienced by an individual. Works on this issue have always been based on complicated models, even for single instances of both indoor and outdoor residential radon. Our proposed method can be used to analyse effectively the many-to-many (it, however, becomes numerically clumsy if more than 5-to-5 instances are considered) instances of residential radon, although we have illustrated, here, using a three-to-three situation. Our preference of this method is based on its simplicity, and probable higher precision, as compared with the complexity involved in other methods on the same issue. The data used for the illustration of our models were taken from the indoors (i.e. living-room, bedroom and the kitchen) and the rest outdoors (i.e. verandah, car-park and the well-water shed) of a residential building in a lightly populated estate (i.e. Asero housing estate). Observations were taken on a daily basis throughout the dry season covering ninety days (i.e. January, February and March), this constitutes our season I (i.e. dry). The same was repeated in the season II (i.e. wet) which was taken at the beginning of June through July and August.ª¤?ª¤?ª¤?ª¤?ª¤?ª¤?ª¤?ª¤

Childhood acute lower respiratory tract infections in Northern Nigeria: At risk factors

Background: Childhood Acute Lower Respiratory Tract Infection (ALRTI) remains an important public health problem in the developing world, with significant morbidity and mortality a challenge. An understanding of risk factors in the development of childhood ALRTI may offer clues to prevention of the disease; identify conditions that lead to progression to severe disease, complications and even death in a child receiving treatment.Aim: to determine risk factors for ALRTI among Under five children hospitalized.Methods: A prospective study of children aged 2-60 months admitted into hospital with diagnosis of pneumonia and bronchiolitis from November 2011 to September 2012 at the National Hospital, Abuja, Nigeria. With a questionnaire data on socio- demographic and potential risk factors for ALRTI were obtained.Results: A total of 50 children aged 2-60 months were enrolled, 92.0 % had pneumonia while 8.0% had bronchiolitis. 86.0% of pneumonia subjects were 24months and below, while all those with bronchiolitis were infants. 43(86.0%) of subjects were hospitalized in the rainy season. The weights for height z score was less than minus 2 in 12 (24.0 %) of the subjects. Significant risk factor for ALRTI was the use of kerosene and solid fuel for domestic cooking, 33 (66.0%), p value 0.0001; Mortality was four percent among the infants. We conclude that younger age under 24 months and exposure to hydrocarbon and biomass from indoor pollution was contributing risk factors for ALRTI in Under five children.Key words: Acute lower respiratory tract infection, risk factors, hospitalization, under-five

Maternal vitamin D deficiency associated with neonatal hypocalcaemic convulsions

Maternal vitamin D insufficiency is not uncommon. Infants born to mothers who are deficient in vitamin D and or calcium, usually due to cultural modifications in their diets or clothing habits, and in addition are breastfed, are at risk of developing vitamin D deficiency and hypocalcaemia. We present a case of neonatal hypocalcaemic seizures secondary to vitamin D deficiency

STOCHASTIC PREDICTION OF MONTHLY INFLATION RATES THROUGH KALMAN FILTERING

Inflation measure is an important indicator of the state of an economy and the desire to determine it ahead of “time” cannot be overemphasised. This paper presents a step-by-step algorithm to predict the would-be monthly inflation rate of the Nigerian economy, using Kalman Filtering Predictor (KFP). The ordinary structural model for a time series (structTS) is highlighted to “fairly” compete against our proposed KFP. The structTS is a powerful “competitor”, it is in recommended R package “stats” and used for fitting basic structural models to “univariate” time series. It is quite reliable and fast, and is used as a benchmark in some comparisons of filtering techniques, it is indeed the “predictor” to “beat”, yet our proposed KFP has more to “offer”. The pertinent statistics and pictorial representation of the results obtained, through both techniques, is highlighted for any “incorruptible” judge’s perusal. All of these are contained in the couple of illustrative examples that exhibit the steps involved in the proposed algorithm, using a hypothetical monthly inflation rate and the monthly inflation rates data (January, 2011 to June, 2014) of the Nigerian economy.     &nbsp

STATISTICAL ANALYSIS OF TEMPORAL VARIATIONS IN INDOOR RADON DATA USING AN ADAPTED RESPONSE SURFACE METHOD

Temporary variations in indoor radon data (IRD), comprising radon concentration (RC), air temperature, relative humidity and barometric pressure were monitored hourly over a period of two months in a bungalow house in Abeokuta, Nigeria. A total of 1510 data was assembled and analyzed statistically using Shapiro-Wilk for normality test, response surface method (RSM) and adapted response surface method (ARSM) to investigate and model the influence of the meteorological parameters on the variations of RC in indoor air. The overall results showed that RC varies widely over time and correlates positively with relative humidity and temperature, but negatively with barometric pressure. Specific results of the two response surface methods were compared and contrasted and the multiple linear regression model of the ARSM was highlighted and established as the appropriate method for analyzing IRD. ARSM was presented in an easily reusable form that can easily be adopted by researchers and data analysts.ª¤

Ophthalmic Emergencies in Benin City, Nigeria

Background: The types and causes of ophthalmic emergencies atthe University of Benin Teaching Hospital, Benin City werestudied prospectively over a 24-month period (January 2002-December 2003).Methods: All emergencies presenting at the University of BeninTeaching Hospital Eye Clinic during this period wererecorded. Cases booked for routine clinic visits were excluded.Also excluded were routine referrals to the eye clinic exceptthey required emergency treatment.Results: Ophthalmic emergencies constituted 1.1% of allemergencies seen in the hospital. Most of those who presentedwere children and young adults < 30 years. Males were moreaffected with a male: female ratio of 2.9:1. Trauma accountedfor 53.4% of the cases. This was either in the form ofcorneal/scleral laceration (22%), traumatic hyphaema(14.4%), ruptured globe (6.1%), lid laceration (4.1%) orburns (6.8%). Non-traumatic causes accounted for 34.1% andwere mostly due to infection/inflammatory causes, presentingeither as panophthalmitis (14.4%), corneal ulcers (10.6%), ororbital cellulitis (9.1%).Conclusion: A two-fold strategy for minimizing ophthalmicemergencies and reducing its devastating effects wasrecommended. Health education would promote the use ofprotective eyewear for high risk occupations, eradicate latepresentation thereby preventing deterioration of minor ocularproblems and minimizing severe complications. Adopting theprinciple of ‘injury control’ will ensure prevention; provideappropriate emergency medical services for the injured as wellas specialized rehabilitation facilities which should attempt toreturn the individual to their former level of functionalit

HISTOLOGICAL STUDIES OF BREWERY SPENT GRAINS IN DIETARY PROTEIN FORMULATION IN DONRYU RATS

The increasing production of large tonnage of products in brewing industries continually generates lots of solid waste which includes spent grains, surplus yeast, malt sprout and cullet. The disposal of spent grains is often a problem and poses major health and environmental challenges, thereby making it imminently necessary to explore alternatives for its management. This paper focuses on investigating the effects of Brewery Spent Grain formulated diet on haematological, biochemical, histological and growth performance of Donryu rats. The rats were allocated into six dietary treatment groups and fed on a short-term study with diet containing graded levels of spent grains from 0, 3, 6, 9, 12 and 100% weight/weight. The outcome demonstrated that formulated diet had a positive effect on the growth performance of the rats up to levels of 6% inclusions, while the haematological and biochemical evaluation revealed that threshold limit should not exceed 9% of the grain. However, the histological study on the liver indicated a limit of 3% inclusion in feed without serious adverse effect. Thus invariably showing that blend between ranges 1-3% is appropriate for the utilization of the waste in human food without adverse effect on the liver organ. The economic advantage accruing from this waste conversion process not only solves problem of waste disposal but also handle issues of malnutrition in feeding ration

Functional and Nutritive Properties of Spent Grain Enhanced Cookies

The generation of large tonnages of spent grains as byproduct has become major disposal problem in brewing industry. This necessitate sourcing utilization alternatives to complement present use as animal feeds. The incorporation of this brewery spent grain, BSG, into cookie formulations to 15% maximum levels and its effects on the nutritional and functional properties of cookies was investigated. About 6.14% dried and 610 μm milled BSG were added to cookie formulation mix at 0, 3, 6, 9, 12 and 15% levels. Other recipes added include: wheat flour, salt, sodium carbonate, water, non-fatty milk and additives. The trace metal content of the blended products were also compared with local and imported cookies. The results obtained indicated free fatty acid, moisture content, extracted fat and sensory evaluation of the final cookies were limited to 6% optimum inclusion while the spread ratio analysis suggested 3% BSG usage. The undesirable flavor of BSG as additives influenced the taste of the cookies to a great extent and did not change the nutritional status of the samples from 6% BSG inclusion. The trace metals statistical analysis of the BSG supplemented cookies compared well with both locally baked and imported cookies (p≤0.05). However, addition of brewery spent grains significantly increased the nutritional properties of the cookies up to 6% level of BSG addition