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Motion of a tiny tool thrown by an astronaut towards another astronaut in an orbiting spacecraft in gravitational space
No full textA spacecraft carrying two astronauts executes a circular orbit with a constant angular velocity. The centre of the circular orbit is the centre of the Earth. One astronaut throws a tiny tool towards the other. Motion of the tiny tool relative to the rotating spacecraft, ie, as observed by the astronauts is dealt with so as to determine its velocity , range and trajectory
Membrane depolarization in stroke patients
Full text linkAim: This study was investigated to evaluate the level of membrane potential in stroke patients in Owerri.
Material and method: 60 stroke patients and 60 apparently healthy subjects between the ages of 60 to 80years admitted to General Hospital Owerri were selected in this study. Fasting veinous blood was collected and was used for the determination of membrane potential .
Results: The results obtained revealed that the level of membrane potential was significantly decreased in stroke patients when compared with the control at P<0.05.
Conclusion: This could probably imply depolarization of cell membrane potential leading to reduced cell activity
Gasoline fumes exposure and risk of respiratory disease among fuel pump attendants in Owerri Municipal Council, Nigeria
Full text linkGasoline fumes exposure and risk of respiratory disease was investigated in this cross-sectional study. The risk and factors influencing it were also assessed. A total of 216 non-smoking subjects (108 fuel and 108 shop attendants) aged between 18-60 years and above who had worked for more than 1 year in fuel stations and shops located in Owerri Municipal, Imo state participated in the study. Their socio-demographic and occupational histories were recorded with questionnaire based on informed consent. Peak Expiratory Flow Rates (PEFRs) were recorded and analyzed separately for test and control group. Data collected were analyzed with Computer software SPSS Version 16, values of P less than 0.05 were considered significant. Results obtained showed that majority of the attendants were single-female adults, aged between 20-29 years, who had worked between 0-4 and 5-9 years in fuel stations and shops respectively. Odd Ratio (risk) of 3.2 was found in fuel pump attendants. Variations in PEFR of fuel attendants were found to be significantly associated with their years of gasoline exposure (0.000), age (p=0.000), sex (p=0.000), height (p=0.000) and work schedule (p=0.010). There was a statistical significant decrease in PEFR of fuel pump attendants (308.89±51.34), when compared with that of the shop attendants (350.46±46.41). The results revealed reduced respiratory/pulmonary function and risk of respiratory disease which worsen with years of exposure to gasoline fumes in fuel pump workers. Medical observations involving pre-employment and periodic post-medical check-ups like lung function tests and use of nose mask (respirator) were recommended for the protection of fuel pump workers
Haemoglobin Level and Intestinal Parasites in Pregnant Women in Eziama, Imo State of Nigeria
Full text linkThis prospective study was carried out between January to June, 2008 at Eziama in Isiala Mbano Local Government Area of Imo State to determine the haemoglobin level and intestinal parasites in pregnant women attending antenatal clinic. In total, 281 stool and blood samples were collected from the women. The stool samples were examined using direct wet preparation and formol ether concentration technique while the haemoglobin levels of the women were estimated using cyanmethaeoglobin technique. The overall prevalence of E. histolytical, A. Lumbricoides, Hookworm Spp, T. trichuria and G. lamblia was 10(3.6), 31(11.0), 29(10.3), 10(3.6) and 3(1.1) respectively. The proportion of pregnant women with helminithic infestation was 83 (29.6%) while their mean Heamoglobin concentration was 9.7+1.8g/dl while the pregnant women without helminthic infestation had Heamoglobin concentration of 10.4 + 1.3g/dl. The poor socioeconomic status of the women coupled with poor environmental sanitation and lack of clean portable water supply may have contributed to the high prevalence
The effect of the antioxidant drug “U-74389G†on creatine kinase - MB levels during ischemia reperfusion injury in rats
Full text linkBackground: This experimental study examined the effect of the antioxidant drug “U-74389Gâ€, on a rat model and particularly in a liver ischemia - reperfusion protocol. The effects of that molecule were studied biochemically using blood mean creatine kinase - MB (CK-MB) levels.
Methods: 40 rats of mean weight 231.875 g were used in the study. CK-MB levels were measured at 60 min of reperfusion (groups A and C) and at 120 min of reperfusion (groups B and D). The drug U-74389G was administered only in groups C and D.
Results: U-74389G administration kept significantly increased the CK-MB levels by 31.60% + 13.10% (p = 0.0148). Reperfusion time kept non-significantly increased the CK-MB levels by 5.40% + 14.09% (p= 0.6358). However, U-74389G administration and reperfusion time together kept non-significantly increased the CK-MB levels by 14.50% + 8.16% (p=0.0745).
Conclusions: U-74389G administration reduced at non-significantly increased the CK-MB levels, getting on decline them from significant to non-significant level
Antidiabetic and antilipidemic effects of Andrographis paniculata ethanolic root extract in alloxan induced diabetic rats
Full text linkThis investigation was aimed at finding the antidiabetic and antilipidemic potentials of Andrographis paniculata roots extract in Alloxan induced diabetic rats. Sixty female rats were used for the study and diabetes was induced into 50 rats by intraperitoneal injection of Alloxan while 10 were not induced. They were shared into six (6) study groups of 10 rats each and designated as; positive control group (NDC) placed on water and feeds, negative control group (DC) Alloxan induced but untreated, diabetic group treated with insulin and 3 diabetic groups (DAP1, DAP2, DAP3) administered ethanolic root extract at varying concentration of 200mg/kg, 400mg/kg and 800mg/kg B.W respectively for 7 days. Fasting blood glucose and body weight indices were monitored during the experimental period. Animals treated with insulin and Andrographis paniculata root extract shows significant decrease in their glucose concentration compared with the diabetic control (DC) at (p<0.05) at varying concentration. There was a significant decrease in the LDL level of the treated groups as against an increment in DC with relations to the NDC group. TAG was significantly decreased and HDL was significantly increased in the extract treated Group at 800mg/kg but significantly increased at 200mg/kg, 400mg/kg and insulin group. Serum albumin was also increased in like manner at (p<0.05). Total protein for the treated groups were increased significantly compared to the diabetic control group.(DC) which was significantly reduced compared to the non-diabetic control group (NDC) at (p<0.05) at varying concentration. The extract was found to be non-toxic as seen by the extract fed normal rats of A. paniculata root extract. In this present findings, A. paniculata roots extract possessed significant antihyperglycemic effect, as it lowers glucose concentration in the blood and lipid profile activity in alloxan induced diabetic rat
Bioremediation of lead and nickel contaminated soil by Eudrilus eugeniae and the characterization of synthesized nanoparticles
Full text linkBionanotechnology has emerged for developing a green and ecofriendly technology for recycling the non-destructive waste materials and cleaning the environment .the present study focuses on the bioremediation of heavy metal contaminated soil and safe disposal of heavy metals and minerals with the help of earthworms , namely Eudrilus eugeniae as an ecofriendly technique. The characterization studies were conducted on these heavy metal nanoparticle in soil by Dynamic Light Scattering to determine the particle size; Atomic Absorption Spectroscopy to analyze the free elements present and X-ray Diffraction study to determine the toxic chemical compounds and minerals present in the soil. Bioremediation of lead and nickel contaminated study using Eudrilus eugeniae was found very efficient. The study shows that the lead and nickel levels have reduced to the safety standard levels. Eudrilus eugeniae were able to accumulate lead and nickel contaminants in their tissue and reduce them to nano-sized particles
Quail eggs consumption and the levels of sex hormonesin healthy students of Nnamdi Azikiwe University, Nnewi
Full text linkAim: The present study was design to determine the serum levels of sex hormones (estradiol, progesterone, follicle stimulating hormone, lutenizing hormone, prolactin, and testosterone) following the consumption of cooked quail eggs by apparently healthy students.
Materials and Method: This is an experimental study comprising 37 volunteered students, out of which are 20 females and 17 males within the age of 18±35years respectively. They were fed with three cooked quail eggs every morning for 21 days. 3ml of fasting blood were collected before the intake of cooked quail eggs for baseline, 10th day, and 21st day respectively.
Result: The serum levels of estradiol, progesterone, follicle stimulating hormone, lutenizing hormone, prolactin, and testosterone were determined using standard methods. The result showed that the serum testosterone levels increased significantly while prolactin levels decreased significantly at 10th and 21st day compared with the baseline level (p=0.01). However, the levels of progesterone and estradiol increased significantly at 21st day only compared with their baseline (p=0.01). The mean levels of FSH, and LH at baseline, 10th and 21st day did not differ significantly following consumption of cooked quail eggs.
Conclusion: The probably suggest that regular consumption of cooked quail egg may prevent miscarriage due to low progesterone levels because of its ability to increase progesterone level after consumption. It might as well as cause improvement on male and female fertility
Seasonal variation in the population dynamics of helminth parasites in Gallus gallus domesticus from Solapur and Osmanabad District (M.S) India
Full text linkThe present research work deals with the study of seasonal survey on the prevalence of helminth infection in Gallus gallus domesticus from Solapur and Osmanabad region. The study was conducted from August 2016 to July 2017. For this study Gallus were collected from different places of Solapur and Osmanabad Dist. in different season. After experimental observation the intestines of Gallus were recorded high parasitic infection during the summer season as compared to winter and monsoon
Synthesis and Characterization of Nanosized Zirconium Titanate Dispersed Polyaniline Nanocomposite
Full text linkThe recent development in the synthesis of bi-metal oxide nanomaterials through a new synthetic technique upgrades the science and technology of nanoscale materials. Zirconium titanate (ZrTiO4) is synthesized by solid-state combustion reaction usingZrO2 and TiO2 at high temperature.ZrTiO4nanomaterial dispersed polyaniline to form its nanocomposite (ZrTiO4-PANI) is carried out by in-situ polymerization of aniline using ammonium peroxide as an oxidising agent. ZrTiO4-PANI nanocompositeis well characterized by various characterization tools. Structural characterization is carried out by X-ray diffraction (XRD) andmorphology by Scanning Electron Micrograph (SEM) tool. The bonding nature of the sample was studied by Fourier transform Infrared (FT-IR). Presence of metals like Zr and Ti in the nanocomposite was confirmed by Energy Dispersive X-ray microanalysis (EDX) study