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Search Results: 1 - 10 of 566461 matches for " M.C. John Milton "
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R. Azhaguraj,M.C. John Milton,J. Ganesh,G. Justin Zenith kumar
International Research Journal of Pharmacy , 2012,
Abstract: This study aims to evaluate the biological activity of Caulerpin β-Sitosterol, Taraxerol and Palmtic acid isolated from the marine macro algae Caulerpa spp. The PASS computer program was used in this study to predict the biological activity profile of the four Phenazine derivates. The results were analyzed to show various biological activities like pharmacological (Kinase inhibitor, Neuroprotector and Antiviral), Effects (Oxidoreductase inhibitor, Acid Phosphatase inhibitor) and toxicological activity (Teratogen) of these compounds. The PASS software is useful for the study of biological activity of secondary metabolites.
Relevant Factors to a Statistical Analysis of Overvoltages - Application to Three-Phase Reclosing of Compensated Transmission Lines  [PDF]
P. Mestas, M.C. Tavares
Energy and Power Engineering (EPE) , 2013, DOI: 10.4236/epe.2013.54B221
Abstract: This paper describes the statistical study of important factors that influences transient over voltages resulting from three-phase reclosing of shunt compensated transmission lines. These factors include the model used for transmission line representation and the influence of line transposition. Additionally, the over voltages reduction to proper levels depending on the type of control technique are illustrated and analyzed in statistical terms. The evaluation covers three shunt compensation degrees. The digital simulations were performed using the PSCAD/EMTDC software.
Portable and Airborne Small Footprint LiDAR: Forest Canopy Structure Estimation of Fire Managed Plots
Claudia M.C.S. Listopad,Jason B. Drake,Ron. E. Masters,John F. Weishampel
Remote Sensing , 2011, DOI: 10.3390/rs3071284
Abstract: This study used an affordable ground-based portable LiDAR system to provide an understanding of the structural differences between old-growth and secondary-growth Southeastern pine. It provided insight into the strengths and weaknesses in the structural determination of portable systems in contrast to airborne LiDAR systems. Portable LiDAR height profiles and derived metrics and indices (e.g., canopy cover, canopy height) were compared among plots with different fire frequency and fire season treatments within secondary forest and old growth plots. The treatments consisted of transitional season fire with four different return intervals: 1-yr, 2-yr, 3-yr fire return intervals, and fire suppressed plots. The remaining secondary plots were treated using a 2-yr late dormant season fire cycle. The old growth plots were treated using a 2-yr growing season fire cycle. Airborne and portable LiDAR derived canopy cover were consistent throughout the plots, with significantly higher canopy cover values found in 3-yr and fire suppressed plots. Portable LiDAR height profile and metrics presented a higher sensitivity in capturing subcanopy elements than the airborne system, particularly in dense canopy plots. The 3-dimensional structures of the secondary plots with varying fire return intervals were dramatically different to old-growth plots, where a symmetrical distribution with clear recruitment was visible. Portable LiDAR, even though limited to finer spatial scales and specific biases, is a low-cost investment with clear value for the management of forest canopy structure.
Cd, Cu and Pb Concentration Levels in Horseshoe Crab Nesting Grounds of Pahang Coast, Malaysia
K. Zaleha,B.Y. Kamaruzzaman,B. Akbar John,M.C. Ong
Journal of Biological Sciences , 2010,
Abstract: Balok, Pekan and Penor have been observed to be nesting grounds of the horseshoe crab. Present study was conducted to assess the metal concentration in sediment of horseshoe crab the nesting ground along the east coast of peninsular Malaysia. Acid Digestion was performed using (HF, HNO3, HCl, EDTA and H3BO4) before determining the actual concentration of heavy metals using ICPMS. 2-way ANOVA was used to determine the significance of the results. In all stations, Pb was in highest concentration (40.36 μg g-1) followed by Cu (13.44 μg g-1) and the least concentrated metal in the nesting ground was Cd with the high concentration of (0.26 μg g-1). EF values showed that Pb is of anthropogenic source and Cd is of minimum enrichment. Although the levels of Pb are low and regarded harmless to the horseshoe crab, the fear of it affecting those who consume the eggs as well as the crab is still in consideration.
Laparoscopic Burch surgery: is there any advantage in relation to open approach?
Bezerra, Carlos A.;Rodrigues, Alexandre O.;Seo, Alexandre L.;Ruano, José M.C.;Borrelli, Milton;Wroclawski, Eric R.;
International braz j urol , 2004, DOI: 10.1590/S1677-55382004000300012
Abstract: introduction: surgery represents the main therapeutic modality for stress urinary incontinence. in incontinent patients with urethral hypermobility, the retropubic colposuspension by burch technique is one of the surgeries that present better long-term results. current trends towards performing minimally invasive techniques led proposing the burch surgery through videolaparoscopy. the laparoscopic technique's long-term efficacy is a highly controversial issue. however, even if late results turn out to be satisfactory, the assumed advantages of laparoscopy (faster recovery, less pain, early return to daily activities, etc.) must be evident, in order to justify the use of this minimally invasive surgical access. materials and methods: we reviewed our records and analyzed the medical charts of 26 female patients who underwent burch surgery by open approach and 36 female patients by laparoscopic approach, between may 1999 and february 2001. the satisfaction level, surgical complication rates, surgery length, hospital stay and return to daily activities were analyzed. results: mean age was 42 years, ranging from 27 to 68 years. epidemiological data from both groups were not statistically different. patients operated by laparoscopic route had a shorter hospital stay (p = 0.002) and a faster return to their daily activities (p < 0.001). however, there were no statistical differences in the following parameters: surgical time (p = 0.11), surgical complications (p = 0.98), patient satisfaction immediately (p = 0.77) and 90 days following surgery (p = 0.84), surgery acceptance (p = 0.85), indication of this surgery to a friend (p = 0.93) and score given to the procedure (p = 0.68). conclusions: even if the efficacy of both methods is similar, we did not observe significant advantages of laparoscopic surgery over open surgery, concerning the recovery in recent post-operative period.
Journal of soil science and plant nutrition , 2010, DOI: 10.4067/S0718-95162010000100004
Abstract: worldwide use of pesticide has increased dramatically during the last two decades. as a consequence, pesticide residues and their transformation products are frequently found in groundwater and surface waters. this review summarizes information about polycyclic aromatic hydrocarbons (pahs), polychlorinated biphenyls (pcbs), some chlorophenols; it mainly empathizes on pesticides, their incorporation into the environment, microorganisms involved in their degradation and, some physico-chemical aspects of pesticides behavior in soils. details about residues of pesticides in groundwater and superficial water found in some foreign countries and in chile are reported, as well. the fungal degradation of organic pollutants (xenobiotics) is considered as an effective method to remove these pollutants from the environment by a process which is currently known as bioremediation. therefore, the degradation of pesticides by soil microorganisms with particular attention to white-rot fungi is also addressed. finally, a simple and effective system (biobed) to minimize environmental contamination from pesticide manipulation, especially when filling the spraying equipment, a typical point source of contamination, is presented here.
A pedogeomorphic comparison of two granitic areas in the Kruger National Park
M.C. Munnik
Koedoe : African Protected Area Conservation and Science , 1990, DOI: 10.4102/koedoe.v33i2.441
Abstract: Two climatically different areas on granitic materials near Phalaborwa and Pretoriuskop in the Kruger National Park were pedogeomorphologically compared and the influence of climatic factors on soil and hillslope development in the two areas was assessed. The examination of 18 hillslopes and their soils showed that while the two areas have many broad similarities, there are specific soil and hillslope differences between them with the result that each area has its own distinctive pedogeomorphic character. While comparable parent material, situation and age appear to be responsible for similarities between the areas, the differences could in most cases be accounted for by the disparity in rainfall between the two areas. It was, however, also necessary to note the role of past (and possibly current) cycles of erosion and deposition in the creation of the two types of simple hillslopes occurring in the areas.
Die problematiek van armoede met verwysing na onderwys, gesondheid en die gesin
M.C. Barnard
Koers : Bulletin for Christian Scholarship , 1995, DOI: 10.4102/koers.v60i1.620
Abstract: The problematic nature of poverty with reference to education, health and the family. Poverty is on the increase worldwide and goes hand in hand with unemployment. In South Africa poverty is inextricably interwoven with the historical and sociocultural legacy of the largest part of the population. The causes of poverty are extremely complex and must be sought in a combination of human and structural factors. Poverty has far-reaching influence on education, health and the family life of society. The question may be posed as to whether education has a decisive effect on the combating of poverty as such. In spite of the fact that education of a high standard is an important determinant in promoting literacy on an individual level, to improve quality of life and to develop human potential, it does not offer ready-made solutions for structural and cultural historical inequality and, this is nowhere more dearly reflected than in education. If education proposes to make a meaningful contribution to the combating of poverty, strategies such as more effective education financing, the partial privatisation o f education, greater utilisation of natural and human resources, the promotion of job creation and entrepreneurship, as well as enrichment of family life must be effected.
A note on Professor Johns’s “Gift addressed to the spirit of the Prophet”
M.C. Ricklefs
Bijdragen tot de Taal-, Land- en Volkenkunde , 1973,
An inventory of the Javanese manuscript collection in the British Museum
M.C. Ricklefs
Bijdragen tot de Taal-, Land- en Volkenkunde , 1969,
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