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Search Results: 1 - 10 of 260116 matches for " I.G. Kantardgi "
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Water quality protection in the coastal artificial water areas
I.G. Kantardgi,V.S. Maderich
Magazine of Civil Engineering , 2013,
Abstract: The method based on the numerical modeling of the processes, forecasting and sea water quality assurance at the design stage of the coastal hydraulic constructions like ports, recreational and bank protection structures is presented. The half-closed coastal water areas are the object of the intensive pollution and in the same time have the limited water exchange with the main basin. The research objective was the development of forecasting method of the water quality in the harborage and the guidelines on the required water quality supply. The study was carried out for the conditions of the yacht port “Grand-Marina Sochi”, which is being designed for placing in the area of seaport Sochi. The oil spill and the failures at the wastewater treatment facilities are considered like the sources of the pollution. The numerical modeling of flow fields has been applied to forecast the spreading of the pollution under the determined hydro-meteorological scenarios. On the basis of the study there were made recommendations on the program of the environmental monitoring of the sea water quality in the harborage.
Potenciales evocados cognitivos: Utilidad de la mismatch negativity
Gurtubay,I.G.;
Anales del Sistema Sanitario de Navarra , 2009, DOI: 10.4321/S1137-66272009000600005
Abstract: the techniques of cognitive evoked potentials are considered long and technically complex, which is why their use in clinical practice is not very widespread in spite of their potential utility. recent advances in registering and analysis, together with improvement of the software managing these signals, have appreciably reduced these problems. mismatch negativity stands out as the most promising of all the cognitive potentials due to its special characteristics regarding its generation requisites and its proven clinical utility. the fact that it can be generated without care requirements makes it especially useful for evaluating subjects with a low level of consciousness; it serves for predicting when they will emerge from a coma, amongst other uses. the incorporation of this technique into the arsenal of neurophysiological techniques for evaluating the state of these subjects will bring a substantial improvement in the evaluation of cases whose management in clinical practice is extremely complex.
The habitat preferences of fishes from the Limpopo river system, Transvaal and Mocambique
I.G. Gaigher
Koedoe : African Protected Area Conservation and Science , 1973, DOI: 10.4102/koedoe.v16i1.888
Abstract: The species composition of fishes in the Limpopo River system is described. The frequency of occurrence for eachhabitat type is expressed as a percentage of the habitats sampled. A check list of species is presented and the species can be grouped into five habitat preferences.
Role of the Exztracapsular Phacoemusification Method in Operative Treatment of the Age and Complicated Pathology of a Lens
I.G. Smetankin
Sovremennye Tehnologii v Medicine , 2009,
Abstract: The collaborators of the NNSMA ocular disease clinic have made more than 10000 operations of the extracapsular phacoemulsification with the artificial lens implantation at cataracts of the different degrees of opacity and a density of 1—5 since November 1995.A flow of operation and postoperative period in more than 95% of cases was uncomplicated. In 80% of cases the operation was terminated with a soft artificial lens implantation. A high stable visual acuity — 0.4—1.0 (with correction or without it) is marked in 90% of patients. The indications and contraindications of the extracapsular phacoemulsification method use are regarded. An original universal model of artificial lens, used for correction of a visual acuity in complicated and uncomplicated cases, is elaborated.
Kataract Phacoemulsification in the Treatment of Patients with Combined Lens Pathology
I.G. Smetankin
Sovremennye Tehnologii v Medicine , 2011,
Abstract: There have been discussed present principles and strategic approaches in cataract treatment in patients with combined lens pathology (glaucoma, pseudoexfoliative syndrome, lens subluxation, syndrome of rigid iris) as the most troublesome group of patients whose frequency of intra- and postoperative complications after cataract extraction has remained relatively high. Turn to extracapsular phacoemulsification of lens contributes to reduction of complication rate in this group of patients though does not make it possible to exclude them completely. There has been given the review of current techniques and some technical aspects of cataract surgical treatment, and have been drawn up the ways to improve the technology phacoemulsification in this complicated group of patients.
New Technologies of a Lens Refractive Substitution with a Use of Microincisions
I.G. Smetankin
Sovremennye Tehnologii v Medicine , 2010,
Abstract: Materials and methods. The operations on a lens refractive substitution were made on 67 eyes of patients at the age of 27—84 years. A bimanual extracapsular phacoaspiration with an artificial lens implantation is made on 24 eyes; a bimanual extracapsular phacoethmulsification is made on 43 eyes. The operations are made according to the methods proposed by authors. A maximum date of observation was 5 years.Results and discussion. A remote postoperative period was smooth in more than 95% of the treated patients due to the thorough atraumatic operations. Practically all the rare complications of a postoperative period were conservatively cupped. A visual acuity of 0.7 and more is achieved in 80.6% of patients. The proposed methods with a use of a minimum power and exposition of ultrasound in a zone of the greatest distance both from a posterior capsule and anterior surface of a vitreous body and the cornea endothelium minimize a risk of complications and provide the good early and remote results of operation.Conclusion. The proposed microsurgical method and instrument use permits to exclude or significantly reduce a time of the ultrasound work and a general duration of operation, to decrease its traumatism, a probability of the early and late postoperative period complications, which is favorable for postoperative recovery and rehabilitation dates.
Improved unit hydrograph characterisation of the daily flow regime (including low flows) for the River Teifi, Wales: towards better rainfall-streamflow models for regionalisation
I.G. Littlewood
Hydrology and Earth System Sciences (HESS) & Discussions (HESSD) , 2002,
Abstract: An established rainfall-streamflow modelling methodology employing a six-parameter unit hydrograph-based rainfall-runoff model structure is developed further to give an improved model-fit to daily flows for the River Teifi at Glan Teifi. It is shown that a previous model of this type for the Teifi, which (a) accounted for 85% of the variance in observed streamflow, (b) incorporated a pure time delay of one day and (c) was calibrated using a trade-off between two model-fit statistics (as recommended in the original methodology), systematically over-estimates low flows. Using that model as a starting point the combined application of a non-integer pure time delay and further adjustment of a temperature modulation parameter in the loss module, using the flow duration curve as an additional model-fit criterion, gives a much improved model-fit to low flows, while leaving the already good model-fit to higher flows essentially unchanged. The further adjustment of the temperature modulation loss module parameter in this way is much more effective at improving model-fit to low flows than the introduction of the non-integer pure time delay. The new model for the Teifi accounts for 88% of the variance in observed streamflow and performs well over the 5 percentile to 95 percentile range of flows. Issues concerning the utility and efficacy of the new model selection procedure are discussed in the context of hydrological studies, including regionalisation. Keywords: unit hydrographs, rainfall-runoff modelling, low flows, regionalisation.
Potenciales evocados cognitivos: Utilidad de la mismatch negativity Cognitive evoked potentials: Perspectives for mismatch negativity
I.G. Gurtubay
Anales del Sistema Sanitario de Navarra , 2009,
Abstract: Las técnicas de potenciales evocados cognitivos están consideradas como largas y técnicamente complejas, por ello a pesar de su potencial utilidad, su uso en la práctica clínica no está muy extendida. Los recientes avances en el registro, análisis y mejoras en el software de manejo de estas se ales, han reducido notablemente estos problemas. De entre todos los potenciales cognitivos es la Mismatch negativity, la que por sus especiales características en cuanto a requisitos de generación y probada utilidad clínica, destaca como la más prometedora. La capacidad de ser generada sin requerimientos atencionales la hace especialmente útil para la valoración de sujetos con bajo nivel de conciencia, sirviendo entre otras cosas, para predecir el despertar del coma. La incorporación de dicha técnica a la batería de técnicas neurofisiológicas que valoran el estado de estos sujetos va suponer una mejora sustancial en la evaluación de casos cuyo manejo en la práctica clínica es sumamente complejo. The techniques of cognitive evoked potentials are considered long and technically complex, which is why their use in clinical practice is not very widespread in spite of their potential utility. Recent advances in registering and analysis, together with improvement of the software managing these signals, have appreciably reduced these problems. Mismatch negativity stands out as the most promising of all the cognitive potentials due to its special characteristics regarding its generation requisites and its proven clinical utility. The fact that it can be generated without care requirements makes it especially useful for evaluating subjects with a low level of consciousness; it serves for predicting when they will emerge from a coma, amongst other uses. The incorporation of this technique into the arsenal of neurophysiological techniques for evaluating the state of these subjects will bring a substantial improvement in the evaluation of cases whose management in clinical practice is extremely complex.
Parasites of domestic and wild animals in South Africa. XLVI. Oestrid fly larvae of sheep, goats, springbok and black wildebeest in the Eastern Cape Province
I.G. Horak
Onderstepoort Journal of Veterinary Research , 2010, DOI: 10.4102/ojvr.v72i4.188
Abstract: Merino sheep in Thornveld, Dorper sheep and Angora goats in inland Valley Bushveld, Angora goats and Boer goats in Valley Bushveld on the coastal plateau, and springbok, Antidorcas marsupialis, and black wildebeest, Connochaetes gnou, in Karroid Mountainveld, all in the Eastern Cape Province, were examined for the larvae of nasal bot flies. The sheep and goats were infested with the larvae of Oestrus ovis, and Dorper sheep and Boer goats harboured more larvae than Angora goats on the same farms. Most infestation was present from November to May in Merino sheep in Thornveld, from February to June in Dorper sheep in inland Valley Bushveld, and from May to September in Angora and Boer goats in Valley Bushveld on the coastal plateau. These patterns of seasonality appeared to be regulated by the severity of the summer temperatures at the various localities. The springbok were infested with the larvae of Rhinoestrus antidorcitis, most of which seemed to mature from June to August. All larval sages of Oestrus variolosus and Gedoelstia h ssleri were present in the black wildebeest, and large numbers of 1st instar larvae of G. h ssleri appeared to accumulate on the dura of the wildebeest from June to August.
A century of tick taxonomy in South Africa : tick-borne diseases
I.G. Horak
Onderstepoort Journal of Veterinary Research , 2010, DOI: 10.4102/ojvr.v76i1.67
Abstract: Eighty ixodid tick species, 25 argasid tick species and Nuttalliella namaqua occur in South Africa. Twenty-one of the 80 ixodid species and two of the argasid species occur only in this country, while N. namaqua is present only in South Africa and Namibia. Forty-six of the 80 ixodid species and 16 of the 25 argasid species as well as N. namaqua have been described as new species since 1908. People working in South Africa have written or contributed to the descriptions of 24 of these 63 new species, while foreign researchers have described the remainder. New species indigenous to South Africa are still being discovered, while the names of some species, well known because of their veterinary importance, have been altered.
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