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Jerry Okaro's open resources


Perceived Strategies for the Professionalization of Guidance and Counseling in Nigeria

By Alo, David Igwe

Perceived Strategies for the Professionalization of Guidance and Counseling in Nigeria

Published: 12/03/2005

Size: 2.75MB

Problems and Prospects of Managing Public Expenditure in Local Governments in Nigeria

By Aloh Moses Agashi

Problems and Prospects of Managing Public Expenditure in Local Governments in Nigeria

Published: 12/07/2005

Size: 12.87MB

The Social/Economic Implication Of Graduate Unemployment in Nigeria

By Alozie, Mercy E.

Term Paper For The Course GSP 104 (Social Sciences)

Published: 26/05/2008

Size: 1.90MB

A CRITICAL EVALUATION OF ACADEMIC PERFORMANCE AND TECHNOLOGY OF STUDENTS BASED IN NIGERIA AND THOSE BASED ABROAD

By Alozieuwa Jennifer

A CRITICAL EVALUATION OF ACADEMIC PERFORMANCE AND TECHNOLOGY OF STUDENTS BASED IN NIGERIA AND THOSE BASED ABROAD

Published: 16/05/2008

Size: 620.41KB

The Prevalence, Pathogenicity and Antibiogram of Listeria in the Nigerian Environment

By Ike, Melanie A.c

A total of 82 samples of meat, surface swabs, and soil samples obtained from
retail outlets, butchers' tables and soil in the Nsukka area, were examined for the
presence of Listeria species using standard methods. Listeria species were isdated
from all samples examined except the pork and goat meat samples. The highest
frequency of occurrence (100%) was observed in the soil and in the surface swab
samples, followed by the vegetable samples (85%) and the beef samples (8090). Fish
samples gave the lowest frequency (40%). Heat resistance studies indicated that L.
monocytogenes could survive heating for 1 minute at 80°C, but not at 85°C. The
Listeria isolates were sensitive to Ampicillin, Gentamicin, and Sulfamethoxazole-
Trimethoprim, but were resistant to Penicillin (go%), Neomycin (go%), Streptomycin
(79%), Tetracycline (68%), and Erythromycin (53%). One isolate of L. monocytogenes
was resistant to Gentamicin but not to Ampicillin and Sulfamethoxazole-Trimethoprim.
All isolates of L. monocytogenes and L. ivanovii were pathogenic for mice, haemolytic
on sheep blood agar and lecithinase positive. L. seeligeri isolates were haemolytic but
not pathogenic to mice. Quantitation of haemolytic activity of L. monocytogenes and
L. ivanovii using washed human erythrocytes showed that L. ivanovii produced higher
titers (CHU=l : 16) than L. monocytogenes (CHU = 1 :4). Haemolysin production was
shown to be a function of pH, incubation time ,and cell density. At 30°C L.
monocytogenes lost it's viability after 14 days at pH 4.8 but only after seven days at
pH 4.4. At 5"C, the rate of death at the two pH levels was slower. Viability was still
detected after 63 days of incubation at pH 4.8 but at pH 4.4, viability was lost after 20
days. Histopathological examination revealed the liver as the major organ of attack by
L. monocytogenes, as evidenced by mild degeneration of the hepatocytes, scattered
foci characterized by the necrosis of the hepatocytes and dense infiltration of
mononudear cells. Accumulation of mononuclear cells in the connective tissues
around the bile ducts was equally evident. The heart showed mild pericarditis in the
region of the coronary groove while effects on the kidneys was characterized by frank
haemorrhage and mononuclear infiltration of the cortical interstitium

Published: 19/08/2004

Size: 7.19MB

Studies on Rigor Mortis and Display Changes in Meat Stored Under Ambient Tropical Conditions

By Alugwu, Samson Ugochukwu

Aigor tnurtis and display changes of raw meat during storage under ambient tropical
conditions were studied. With the aid of a light microscope (Leica Galen 1 I l), the fibre
clian~eter of both flayed and singed sheep Psoas major was measured at hourly intervals
during the development. Myoglobin extracts of the samples were studied by
electropl~oresis. The effects of artificial light on meat colour were studied with
Longissirntis dorsi and Psoas major of beef and pork. Finally, polythene-packaging
cffects on meat colour and quality were studied with Lo~gissirnlrs dorsi and Psoas major
of beef and pork, as well as flayed and singed sheep Psons major. The organoleptic
attributes of these samples were assessed using a 9-point hedonic scale. There was higher
percentage reduction in fibre diameter of singed sheep Psoas tnnjor than the flayed sheep
Psoos major.. During electrophoresis, flayed ~nuscles myoglobin extract maintained
highcr clarity compared with the singed muscles myoglobin extract. Jlluininated cabinet-
storcd samples had lower myoglobin content than the room-stored samples. On
packaging, high-density polythene packaged samples had higher myoglobin retention
than low-densi ty pol ythcne packaged or unpackaged samples. Fresh beef, pork and sheep
had a water activity value of 0.99, which decreased averagely during initial 2411 of
storagc (0-3411) to 0.91 due to moisture loss but increased slightly to 0.92 during later
storage (24-4811). Samples packaged in low-rfensity polythei~e had highcr water activity
values than high-density polythene or unpackaged samples. Longissirnus dorsi and Psoas
imjor of beef and pork as well as Psons maor of sheep had highcr pE1 values (of 6.53 Pt
6.72; 6.20 & 6.90 and 6.70 rcspectivcly) immediately after slaughtering but then declined
during storage (to 5.77 & 6.14; 5.65 & 6.04 and 5.86 respectively). High-density
polytlicne packaged samples had higher pH values compared with low-density polythene
packaged or unpackage samples. Water holding capacity of samples stared in a
rcli-igcraloi was higher than that stored under room conditions.

Published: 17/04/2005

Size: 13.07MB

Measurement of Scattering Extinction Coefficient of Atmospheric Fine Particles; The Fine Particle Mass Loading at Nsukka; and Their Effects on Solar Radiation

By Amadi, R.u

This project centres on measurement of the scattering extinction
coefficient of atmospheric fine particles of diaeter 2.5~ or
0 less at Nsukka, latitude 6.8 N, longitut 7,35'fZ :vc? 488m
above sea level. A sensitive integratiag wphebcmeter model 1597
-7 -1 o?? sensitivity 10 m was used for the meas:i.:c~en.ts. The period
under review is from 13th December 1985 t.0 the end of %arch 1986.
Other parameters computed are fine particle maloaoing 2er unit
volume of air, FPM, Total Scattering Extinction Coefficient,
bscaCt'
and local visual distance,
Lvd'
We have obtained the instantaneous
values at one hour intervals as well as the average hourly values
of these parameters for each day. We have also attempted to
correlate the results of our measurements with measurements of
total and diffuse solar radiation at Nsukka within the same period,
Our measurements show that scattering extinction coefficient,
-4 -1 b has maximum value of about 10.00 x 10 m which corresponds SP -4 to fine particle mass loading, FPM of about 3.03 x 3.n j/m3 on
a typical harmattan day (20th, 21st December 192" :~.:r.h, or 18th
-4 -1 January 1986). It has a minimum value of Q 65 s 10 m
-4 3
corresponding to fine particle mass load-;) y of 1.2 x 10 g/m on
February 27 and March 2 which are outsi2e th:: 2:irmattan ?eriod.
Results got also reveal that there were r;::.,rf2 dust particles in
the atmosphere in the months of December ~nd Jkiauary and canseqliently
more scattering occurred during this period than in the months
of February and March. This confirms the j.,-.~.~-;.. !die£ that the
in~nths of December and January fall withia peak p-viod of
hsrmattan. Various correlation graphs of total ulld diffuse
solar radiation with fine particle mass lod&ny ad sca+.tering
extinction coefficient were plotted. Cloe scrutLny of tlLe
curves shows that there were virtually little or no hourly
t
correlation. The reason may be due to the short period spanned.
With extended period of two to three years one may be able to see
some correlation at ieast with regards to diffuse radiation and
scattering extinction co-efficient where theory predicts that diffuse radiation is direcby qroportional to scattering extinction
coefficient. Over and above this assertion we are tempted to
conclude that more of the patticles actually responsible for
diffuse radiation are not withm the sensitivity range of the
instrument. We hope that with inproved technolcgy sad e.xt5nded
range of the nephelometer better Crrrelation belljcen sol?:
radiction and th iastzument' s paraaters will be c:cdined.

Published: 16/05/1986

Size: 3.99MB

T11E INCIDENCE OF PROLAPSE JNTERVERTERRAL DISC AT THE PHYSIOTHERAPY DEPARTMENT NATIONAL OR'TIIOPAEUIC HOSPITAL ENU(;U IN TI4 E YEARS 2000-2005

By Amadi-chekwe, Ugochukwu F.

T11E INCIDENCE OF PROLAPSE JNTERVERTERRAL DISC AT THE PHYSIOTHERAPY DEPARTMENT NATIONAL OR'TIIOPAEUIC HOSPITAL ENU(;U IN TI4 E YEARS 2000-2005

Published: 16/08/2006

Size: 891.29KB

AN EMPERICAL STUDY OF THE PERFORMANCE OF THE FEDERAL MORTGAGE BANK OF NIGERIA (1985-2004)

By Amahua, Samuel Amobi

AN EMPERICAL STUDY OF THE PERFORMANCE OF THE FEDERAL MORTGAGE BANK OF NIGERIA (1985-2004

Published: 12/04/2006

Size: 1.63MB

MALE INVOLVEMENT IN REPRODUCTIVE HEALTH: A STRATEGY FOR IMPROVING SEXUAL AND REPRODUCTIVE HEALTH AMONG COUPLES

By Amako Samuel

MALE INVOLVEMENT IN REPRODUCTIVE HEALTH: A STRATEGY FOR IMPROVING SEXUAL AND REPRODUCTIVE HEALTH AMONG COUPLES

Published: 23/09/2007

Size: 2.20MB