Molecular Dynamics Simulation of Carbon Nanotube & Pulmonary Surfactant Protein - B Interactions

Absorption of proteins onto carbon nanotubes is important part of biomedical engineering because it is helpful to fabricate stable, compatible and sensitive scaffold, which is the basic step of fabricating biosensors. Many previous researches show that most of the proteins can be absorbed on surface of carbon nanotube. However, the mechanism of this absorption is not specific clear. In this lecture, mechanism of protein absorbed on nanotube will be explained by molecular dynamics(MD) using NAMD and VMD software package

Study of seed-borne microflora of previously stored Sorghum vulgare seeds in Rajasthan, India

An experiment was conducted at Rajasthan to determine the type of seed borne fungal pathogens associated with farmer-saved sorghum seeds. The sorghum seeds were obtained from sorghum farmers in five districts (Ajmer, Alwar, Jaipur, Jodhpur and Nagaur) of Rajasthan State. Isolation and identification of stored seed microflora by using blotter and agar plate method. Seven fungal species associated with five genera and two bacterial genera were isolated from the seed samples. Higher percent incidence of fungi was of Aspergillus niger followed by A. flavus, Curvularia lunata, A. fumigatus, Penicillium chrysogenum, Fusarium oxysporum, Helminthosporium pennisetii and bacteria E. coli, Pseudomonas aeruginosa.  The most frequently isolated fungal species from seed samples each from blotter as well as agar plate method were Aspergillus niger followed by A. flavus, A. fumigatus, Curvularia lunata, Penicillium chrysogenum, Helminthosporium pennisetii and Fusarium oxysporum.  It is clear from the survey that the yields of Sorghum vulgare are declining in the arid and semi-arid regions of the state. This is because, the naturally occurring seeds are not healthy (with reduced viability) and generally either infected with disease causing pathogen or such microflora which damage the seeds resulting into biodeterioration under storage conditions

Evidence of Itinerant Ferromagnetism in Transition Metal Doped ZnO Nanostructures

This work is aimed at synthesizing and characterizing transition metals (Mn, Fe and Ni) doped ZnO nanostructures. The samples have been prepared by chemical co-precipitation method. The samples have been divided and one half has been coated SiO2. X-Ray diffraction indicated the formation of single phase ZnO. Optical and photoluminescence studies have been carried out using UV-Vis spectroscopy and Photoluminescence spectroscopy respectively. Magnetic responses of the samples have been studied using SQUID. The structural studies revealed that sample is having wurzite structure at room temperature. Magnetization results shows the ferromagnetism in 2 Fe doped, 5 Ni doped and 2 Mn doped ZnO. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3102

An anomalous magnetic phase transition at 10 K in Nd7Rh3

The compound, Nd7Rh3, crystallizing in Th7Fe3-type hexagonal structure, has been shown recently by us to exhibit a signature of magnetic phase-coexistence phenomenon below 10 K after a field cycling, uncharacteristic of stoichiometric intermetallic compounds, bearing a relevance to the trends in the field of electronic phase-separation. In order to characterize this compound further, we have carried out dc magnetic susceptibility (chi), electrical resistivity, magnetoresistance and heat-capacity measurements as a function temperature (T= 1.8 to 300 K). The results reveal that this compound exhibits another unusual finding at the 10K-transition in the sense that the plot of chi(T) shows a sharp increase in the field-cooled cycle, whereas the zero-field-cooled curve shows a downturn below the transition. In addition, the sign of magnetoresistance is negative and the magnitude is large over a wide temperature range in the vicinity of magnetic ordering temperature, with a sharp variation at 10 K. The results indicate that the transition below 10 K is first-order in its character.Comment: Appeared in JPCM (Letters) 18 (2006) L40

A comparative study on nutritional status of under 6 years children in i.c.d.s. And non i.c.d.s. Tribal areas of uttar pradesh

Objectives : To find out the nutritional status of children under six year. To determine the level of difference in nutritional status of Children under six years in I.C.D.S. and Non I.C.D.S. tribal areas. To assess the impact of I.C.D.S. scheme on nutritional status of children below six years. Study Design : Cross Sectional Study Participants : Under six years children. Sample Size : 1536 children of Nighasan block (I.C.D.S. block) and 1471 of Ramia Behar block (Non I.C.D.S. block). Key Words : Nutritional status, I.C.D.S., height - weight index, Service impact. Results : All the value for height & weight in both groups were lower as compared to the I.C.M.R. standards. All children in I.C.D.S. group were below the normal weight - height index (i.e. > 0.15) while in Non I.C.D.S. group were below normal wt.-ht. index in all age group except 6 -<24 months male & 3 - < 9 months female. Overall prevalence of P.E.M. in I.C.D.S. group was 90.36& while it was 86.85% in Non I.C.D.S. group. The difference was significant

Real Life High Voltage Accident Cases - Teaching Electrical Safety

© ASEE 2012We discuss the engineering principles of Hi-voltage (any voltage above 600 volts). We cite 4 examples that typify some of the problems facing the Engineer and technician working with Hi-voltages, including geometry considerations, the need to follow proper protocol and the laws (both scientific and political) governing Hi-voltage. Poor design considerations in capacitor construction is the first case we consider, as well as the lack of proper protocols in discharging same. In the second case, a warning can be made that one should never get too close to a Hi-voltage line, unless the power is cut. In the third case, following simple rules in measurement of an unknown voltage could avoid a serious accident. In the fourth case, a high voltage shows up in a low-voltage circuit. These unfortunate cases are used as teaching tools to impart details of electrical safety in common industrial setting