Friday, 26 December 2014

Lazy Lifestyle Led To Weaker Bones

The comparatively light bone structure of modern humans compared to ancestor  and other modern primates may be due to the modern abandonment of the constant physical activity that was inherent in the life of early hunter gathers.

The most plausible explanation is that a lack of constant physical activity causes the bone in the head of the femur, the long bone in the thigh, to become thinner and lighter than that found in more mobile populations or modern primates such as chimpanzees, gorillas and orangutans.
The other two possible explanations, that humans and nonhuman primates have different bone structure because of genetics, with humans evolving to a lighter, more gracile structure, Or that the large joint surfaces required for upright, two-legged movement decrease the strain on bone and therefore the development of strong bones, do not appear to be true.

Ryan, working with Colin N. Shaw of the University of Cambridge, UK, looked at the hip joint to determine which of the three possible explanations was likely.

The researchers found that the agriculturalists had significantly lower bone mass than the foragers. However, the bone characteristics of the more mobile foragers overlapped with those of the nonhuman primates.

This knowledge might aid in prevention of osteoporosis and hip fracture in the elderly.

Source :- http://www.dnaindia.com/health/report-laziness-has-made-modern-humans-bones-brittle-reveals-new-study-2046514

Saturday, 20 December 2014

Antimicrobial Metal :- Copper !

Copper and its alloys (brasses, bronzes, copper-nickel-zinc, and others) are natural antimicrobial materials. Ancient civilizations exploited the antimicrobial properties of copper long before the concept of microbes became understood in the nineteenth century.

Bacteria, yeasts, and viruses are rapidly killed on metallic copper surfaces, and the term “contact killing” has been coined for this process. In several clinical studies, copper has been evaluated for use on touch surfaces, such as door handles, bathroom fixtures, or bed rails, in attempts to curb nosocomial infections. In connection to these new applications of copper, it is important to understand the mechanism of contact killing since it may bear on central issues, such as the possibility of the emergence and spread of resistant organisms, cleaning procedures, and questions of material and object engineering. Recent work has shed light on mechanistic aspects of contact killing.
The antimicrobial properties of copper are still under active investigation. Molecular mechanisms responsible for the antibacterial action of copper have been a subject of intensive research. Scientists are also actively demonstrating the intrinsic efficacies of copper alloy "touch surfaces" to destroy a wide range of microorganisms that threaten public health.
 In addition, different copper alloys should be tested not only for their effectiveness but also for their esthetic appeal. Finally, the antimicrobial properties of copper surfaces must be integrated with other methods of disinfection and the overall hygiene concept of a health care facility. Additional measures, such as the addition of spore germinants to cleaning solutions to improve killing of spores, also deserve further investigation.
Source :- http://en.wikipedia.org/wiki/Antimicrobial_properties_of_copper,Ncbi .

Tuesday, 9 December 2014

Mission :- Educated Bharat


As we know that in Bharat there a lot of children who never get any education. This is because of their background, caste and other problems. I want to education all of them which is impossible yet, but i have an idea to educate them.
In Bharat there are a lot of families and a family has a housewife. I know that most them are not educated, but 50% of them are educated. From this 50%, 25% are working or employed anywhere, but 25% are free. So, when they have their spare time (generally afternoon), they should collect 2 or 3 children (who don't have money to educate them) and educate them, just for 1 hour daily. If one housewife educate 3 children, then 5 million housewife educate 15 million of children every hour in India. And in this 15 million of children 50% are girls, so the housewives of Bharaeducating girls too. 
At last, it is my request to all the reader please give you 1% percent by sharing my view, because your 1% will be 10% of Bharat's Future .
Thank You for reading , i hope you co-operate . 

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