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User Association and Enabling Technologies in Next Generation 5G Ultra-Dense Networks – A Review
Full text linkEmbedding small cells and relay nodes in a macro-cellular network is a promising method for achieving substantial gains in coverage and capacity compared to traditional macro only networks. These new types of base-stations can operate on the same wireless channel as the macro-cellular network, providing higher spatial reuse via cell splitting. However, these base-stations are deployed in an unplanned manner, can have very different transmit powers, and may not have traffic aggregation among many users. This could potentially result in much higher interference magnitude and variability. Hence, such deployments require the use of innovative cell association and inter-cell interference coordination techniques in order to realize the promised capacity and coverage gains. In this paper, we review various techniques for user association and interference mitigation which are required to meet increased data demand in next generation 5G ultra-dense networ
A PRACTICAL APPLICATION OF AN ONTOLOGY-BASED DIAGNOSTIC AND THERAPEUTIC SYSTEM FOR YORUBA TRADITIONAL MEDICINE.
Full text linkTraditional Medicine (TM) has an important place in
health care delivery among developed and developin
g nations of the
world. It is a first point of call before western m
edicine and a last resort when all orthodox efforts
fail. The objective of this
study was to provide a way to share knowledge of Yo
ruba Traditional Medicine (YTM) in a machine-readab
le form and to
use this method to build a treatment system base on
Traditional Medicine. The treatment system constru
cted in this study is
an ontology-based application that can be used for
treatment. Description Logics formalism is used to
model YTM
knowledge with visual reasoning capabilities and pr
ocesses. Ontological approach is used to express fo
rmal specification of
YTM domain knowledge and this is implemented using
Web Protégé application. In order to ensure the kno
wledge model
and ontology view is well defined, a prototype of k
nowledge based system is developed based on the ont
ology classes or
concepts and relationships defined which require co
nversion of OWL ontology into the relational datab
ase system at first
hand
Adenoids and Its Management: A Review of Surgical Methods
Full text linkAdenoids remained unrecognized because of their inaccessible location and the fact
that most adenoidal pathology occurred in young children. Adenoidectomy is the
surgical procedure in which the adenoids are removed. Removal of the adenoids is
indicated when they are chronically infected or causing obstruction. Since the earliest
descriptions of adenoidectomy, numerous techniques have been described and used
successfully. All techniques are based on the principle of adequate visualization and
removal of the adenoids without damage to the surrounding structures. The advent of
endoscopic sinus surgery has popularized the use of endoscopes. The aim of this
paper is to review various surgical techniques of adenoidectomy
Waiting for an Angel: Portrait of Helon Habila as a Righter
Full text linkThis paper
examines Helon
H
abila's
Waiting for an Angel
in the context
of Niyi Osundare's
thesis of “
th
e
Write
r as
r
ighter
”,
an
assertion
of the
role of the African writer in society.
The paper discusses the qualities
of Habila’s
novel
,
and how
they conform
large
ly
to
what Osundare
believes African writer
s
must
demonstrate
before
they
could be
considered as ‘righ
ter
s
’. For this purpose,
therefore, I have deliberately
adopted
the
Marxist
Literary Criticism
particularly as i
t
aligns with the
revolutionary temper Osundare proposes
.
The paper adopts
content
analysis
approach
in exposing the
tyranny
of
militarism
and t
he reactions
of the inhabitants of Poverty Stree
Inhibitory effect and preliminary phytochemicalscreening of some ornamental plants against somebacteria pathogens
Full text linkBackground: Bacterial resistance to the drugs known for their treatment is on the increase, thereforesuggesting the need to search for dependable natural products as alternative for cure and prevention.Efforts in this regard have focused on plants because of their use historically and the large portionsof the world’s population relying on plants for the treatment of infectious and non-infectious diseases.Methods: Some ornamental plants’ extracts in compares with commercial antibiotics were testedin vitro on Salmonella typhi, Salmonella typhimurium, Staphylococcus aureus and Staphylococcusepidermidisfor medicinal values. Quantitative and qualitative phytochemicals; free radicalscavenging capacity, ferric reducing antioxidant property and hydroxyl radical scavenging of theplants’ extracts were determined by chemical methods.Results: Varied degrees of inhibition and in some cases resistance were observed with the extractson the four bacteria species. However, highest inhibition of 30.33±0.35 mm was recorded on Salmonella typhimurium, followed by S. epidermidis with zone of 30.00±0.00 mm both withH. crepitans extract. Cotrimozazole most inhibited Salmonella typhimurium with a zone of 29 mm and followed by ofloxacin with a zone of 27.33 mm on S. epidermidis. MIC activity of the extract wasbetween 12.5 – 50 mg/ml and MBC activity from 25 – 100 mg/ml.Conclusions: Valuableantibacterial effect of the plants’ extracts correlating with the phytochemicalsand antioxidants potentials, suggest the plants acceptability for folklore and could be of universalrecognition for handling diseases that plaque around us mostly in some urban and rural communitieswhere modern medicine are not affordable and accessible by the poo
The prevalence and determinants of helmet use amongst commercial motorcyclists in Ido-Osi local government area
Full text linkCommercial motorcycle (CM) accidents constitute a major public concern in Nigeria. There is
8:10 chance that injuries resulting from these accidents are severe and debilitating including
head and spinal injuries. This study is aimed at producing useful data on the prevalence, frequency,
and determinants of helmet use among commercial motorcyclist in Ido-Osi Local
Government Area, Ekiti State, Nigeria. The study was a descriptive/cross-sectional study. A
total of 360 respondents were selected by multi-stage sampling technique and interviewed
using assisted self-administered, semi-structured questionnaire. Data were analyzed using
SPSS version 21. Determinants of helmet use examined included age, educational level,
marital status and religion. There was a 100% response rate. More than half of the respondents
were within the age range of 20–29 years 164(53.6%) with the mean age of the study
participants 29.9. The prevalence of helmet usage among commercial motorcyclist was
23.5%. The commonest reason for not using a crash helmet in this study was non-availability.
The commonest reason for the non-availability of the welding helmet was the cost of
the helmet. Less than half of the respondents were able to show or present helmet
although some of the helmet presented were sub-standard (39.7%). The study also revealed
irregular use of helmets among the respondents that used a helmet while riding a motorcycle
as only 2.7% of them used it for all the five riding sessions assessed in this study.
There was a statistically significant relationship between age, educational level, marital status
and the use of helmets among respondents with p values of 0.005, 0.027, and 0.009,
respectively. The prevalence of the use of helmets among the motorcyclist in this study is
low despite the high level of awareness of legislation among the respondents on the use of
helmets during riding. There is a need for the government to make provision for a safety
helmet for this group of people at a subsidized rate if it cannot be given free of charge
because of the economic situation of the country. There is a need to carry out behavioral
change communication for this group of people