From fusion to total disassembly: global stopping in heavy-ion collisions

Using the quantum molecular dynamics model, we aim to investigate the emis- sion of light complex particles, and degree of stopping reached in heavy-ion colli- sions. We took incident energies between 50 and 1000 MeV/nucleon. In addition, central and peripheral collisions and different masses are also considered. We ob- serve that the light complex particles act in almost similar manner as anisotropic ratio. In other words, multiplicity of light complex particles is an indicator of global stopping in heavy-ion collisions. We see that maximum light complex particles and stopping is obtained for heavier masses in central collisions

EMERGING QUALITY CONTROL PERSPECTIVES FOR AYURVEDIC DRUG

Ayush system of medicines based Herbal Pharmaceutical industry (ASU & H drug mfg) is having great potential and opportunities in India for development in future because of global acceptability of the medicinal plants & their value added products in Domestic & International Market as Ayurvedic, Unani and Siddha medicines, Herbal Nutraceuticals, Herbal Cosmoceutical, Herbal Health drinks, Dietary Health Supplements, Medicinal Plants / Crude Drugs, Herbal Extracts / Concentrates, Veterinary Medicines, Health Foods. India is rich with 771468 registered Ayush practitioners, 8667 licensed Ayurvedic drug manufacturing units. Quality Control/Assurance is the department, which controls all activities at various level of manufacturing as National & International standard. Ministry of Ayush continues to lay emphasis on up gradation of AYUSH educational standards, Quality control and standardisation of drugs, improving the availability of medicinal plant material, research and development and awareness generation about the efficacy of the system domestically and internationally. There are various issues & challenges related to drug quality for ASU&H Pharmaceutical Industries in India. It needs proper attention of policy makers and regulator & academia. Complete Implementation of GMP (schedule T) norm/guidelines and quality control/assurance procedure and activities is a big challenge for ensuring quality of drug

COMPREHENSIVE REVIEW OF KRIMIGHNA DRUGS MENTIONED IN THE AYURVEDIC PHARMACOPOEIA OF INDIA

Ayurveda is the science of life having wide description of Krimighna dravya in its literature. Ayurvedic pharmacopeia of India published by the Ministry of AYUSH is a monograph of single drugs; which is very popular for all stack holder of Ayush system of medicines. This article details the review of single drugs mentioned in API part I (Vol I to VI) and their screening for Krimighna (antimicrobial) properties. Present article also aims for validating classical fact with published scientific research work. Authors searched 54 drugs out of 519 single drugs described in the API & it was found most of Ayurvedic Krimighnadravya were recognized for having antimicrobial property which was established through various Preclinical & clinical work carried out by the scientific community. Authors collected data with references to validate API drugs having antimicrobial property. All screened content can be taken for various high-tech research work by various students in MD, PhD or in the various other project of CSIR, DST, EMR project of CCRAS for further development of new drugs and conversion of available drugs to latest dosage form

Droplet mobility on lubricant-impregnated surfaces

Non-wetting surfaces containing micro/nanotextures impregnated with lubricating liquids have recently been shown to exhibit superior non-wetting performance compared to superhydrophobic surfaces that rely on stable air–liquid interfaces. Here we examine the fundamental physico-chemical hydrodynamics that arise when droplets, immiscible with the lubricant, are placed on and allowed to move along these surfaces. We find that these four-phase systems show novel contact line morphology comprising a finite annular ridge of the lubricant pulled above the surface texture and consequently as many as three distinct 3-phase contact lines. We show that these distinct morphologies not only govern the contact line pinning that controls droplets' initial resistance to movement but also the level of viscous dissipation and hence their sliding velocity once the droplets begin to move.United States. Defense Advanced Research Projects Agency. Young Faculty AwardMassachusetts Institute of Technology. Energy InitiativeNational Science Foundation (U.S.). CAREER Award (0952564

Splashing and Breakup of Droplets Impacting on a Solid Surface

Two new mechanisms of droplet splashing and breakup during impact have been identified and analyzed. One is the internal rupture of spreading droplet film through formation of holes, and the other is the splashing of droplet due to its freezing during spreading. The mechanism of film rupture was investigated by two different methods. In the first method, circular water films were produced by directing a 1 mm diameter water jet onto a flat, horizontal plate for 10 ms. In the second method, films were produced by making 0.6 mm water droplets impact a solid surface mounted on the rim of a rotating flywheel. Substrate wettability was varied over a wide range, including superhydrophobic. In both cases, the tendency to film rupture first increased and then decreased with contact angle. A thermodynamic stability analysis predicted this behavior by showing that films would be stable at very small or very large contact angle, but unstable in between. Film rupture was also found to be promoted by increasing surface roughness or decreasing film thickness. To study the effect of solidification, the impact of molten tin droplets (0.6 mm diameter) on solid surfaces was observed for a range of impact velocities (10 to 30 m/s), substrate temperatures (25 to 200°C) and substrate materials (stainless steel, aluminum and glass) using the rotating flywheel apparatus. Droplets splashed extensively on a cold surface but on a hot surface there was no splashing. Splashing could be completely suppressed by either increasing the substrate temperature or reducing its thermal diffusivity. An analytical model was developed to predict this splashing behavior. The above two theories of freezing-induced splashing and film rupture were combined to predict the morphology of splats typically observed in a thermal spray process. A dimensionless solidification parameter, which takes into account factors such as the droplet diameter and velocity, substrate temperature, splat and substrate thermophysical properties, and thermal contact resistance between the two, was developed. Predictions from the model were compared with a wide range of experimental data and found to agree well.Ph

A review on status, implications and recent trends of forest fire management

Forest fire spread out in an area having combustible material in the summer season with high temperature. It burns the area and looks like a misery. Forest fire is one of the factors that severely affects the forest biodiversity. Burning actions in a forest affects not only flora and fauna but also soil properties changed due to the forest fire. In summer season on sloppy topography forest fire originates in tropical forests. While in coniferous forests, forest fire outbreaks during the resin extraction activities. More than 350 million hectares (ha) was estimated to be affected by vegetation fires globally. In India about 55% of forest area is prone to the fire. Fires can be natural or man- made, but manmade fire affects mostly. Several forest types and areas are more susceptible to forest fires because of suitable weather, topography and inflammable material. Forest fires adversely affect the soil, water, flora and fauna and disrupt the ecological functions. The new advances in fire control are remote sensing and GIS where real time information can be gathered about the fire break and immediate follow can be done. The chemicals (as borate, ammonium sulfate and ammonium biphosphate) are used for fire control and various other types of fire retardants are used to keep the fire under control. Forest fire changes the composition of vegetation, extinction of species, development of the various adaptations in unwanted plants. Nutrient cycle and soils are affected. Frequent forest fire events cause global warming. Forest fire needed to be controlled at initial stage and the large fires should not be allowed to occur, the modern techniques of monitoring, detection and control must be used for avoiding the large fires happenings

Prevalence of congenital heart disease in rural population of Himachal – A population-based study

Aim: There is no community-based study about the prevalence of congenital heart disease (CHD) in Himachal; hence, we undertook this study. Methods and results: A population-based survey was done in four villages of different districts of Himachal Pradesh. In total, 1882 persons were examined. 909 were male and 973 were female. There were 12 cases of CHD in the population (6.3/1000): four of these were male (33.3%) and 8 were female (66.6%). Mean age of these patients was 19.5 ± 11.07 years. Atrial septal defect (ASD) was the commonest lesion followed by ventricular septal defect (VSD). Conclusion: Prevalence of CHD in general population was 6.3/1000. ASD was the commonest lesion. CHD was more common in female

The Relative Effect of Household and Workplace Smoking Restriction on Health Status Among Chinese Americans Living in New York City

Households and workplaces are the predominant location for exposure to secondhand smoke. The purpose of this study is to examine the association between health status and smoking restrictions at home and work and to compare the relative effect of household and workplace smoking restrictions on health status. This study uses data from a cross sectional representative probability sample of 2,537 Chinese American adults aged 18–74 living in New York City. The analysis was limited to 1,472 respondents who work indoors for wages. Forty-three percent of respondents reported a total smoking ban at home and the workplace, 20% at work only, 22% home only, and 15% reported no smoking restriction at home or work. Smokers who live under a total household smoking ban only or both a total household and total workplace ban were respectively 1.90 and 2.61 times more likely to report better health status compared with those who reported no smoking ban at work or home. Before the NYC Clean Indoor Air Act second-hand smoke (SHS) exposure among this immigrant Chinese population at home and work was high. This study finds that household smoking restrictions are more strongly associated with better health status than workplace smoking restrictions. However, better health status was most strongly associated with both a ban at work and home. Public health efforts should include a focus on promoting total household smoking bans to reduce the well-documented health risks of SHS exposure