Athar ali Component Easy galary

Wednesday, 13 January 2010

19 Unusual Aircrafts | unusual aircraft designs

Post under somethin beautiful, unusual aircraft designs, Unusual Aircraft's at Wednesday, January 13, 2010 Posted by Atharali

Quiz on Enzyme Kinetics

Post under Quiz, Test at Wednesday, January 13, 2010 Posted by Atharali

A simple quiz with graphs and some real life problems. Let’s see if you can solve it.

General biochemistry:

A simple quiz is presented to test your enzyme kinetics knowledge.

Answer the questions with respect to the graph given in that question.

Please note: More than one question might be correct in the questions so answer them accordingly.
In a fermenter, scientist observed some kind of inhibition of its enzyme used to convert its substrate to a product. He observed a graph as shown below when he compared the results with the standard results. Please answer the questions given below to solve his mystery.

1. Graph denotes which kind of plot?
1. Michaelis-Menten plot
2. Double reciprocal plot
3. X-Y plot
4. None of these
2. Inhibitor is causing which type of inhibition?
1. Reversible
2. Competitive
3. Non- competitive
4. Mixed
3. What is the effect of inhibitor on Vmax of the reaction?
1. Same
2. Decrease
3. Increase
4. Data insufficient
4. What is the effect of inhibitor on the Km of the reaction?
1. Same
2. Decrease
3. Increase
4. Data insufficient
5. How can he solve the problem?

a) Decrease substrate concentration

b) Maintain the substrate concentration

c) Increase substrate concentration

d) Data insufficient
2) While carrying out a test in his lab, a scientist observed a following graph when he compared with his standard graphs. He could decipher that there is some kind of inhibition to its enzyme urease but could not determine the inhibition type. Please look at the graph and answer the questions given below to solve his mystery.

1. Inhibitor is causing which type of inhibition?
1. Uncompetitive
2. Competitive
3. Non- competitive
4. Mixed
2. What is the effect of inhibitor on Vmax of the reaction?
1. Same
2. Decrease
3. Increase
4. Data insufficient
3. What is the effect of inhibitor on the Km of the reaction?
1. Same
2. Decrease
3. Increase
4. Data insufficient

3)During the bioassay of enzyme urokinase test sample, some inhibition is observed. Please look at the graph and answer the questions given below to solve the mystery.

1. Inhibitor is of which type?
1. Uncompetitive
2. Competitive
3. Non- competitive
4. Mixed
2. What is the effect of inhibitor on Vmax of the reaction?
1. Same
2. Decrease
3. Increase
4. Data insufficient
3. What is the effect of inhibitor on the Km of the reaction?
1. Same
2. Decrease
3. Increase
4. Data insufficient

4)During the bioassay of enzyme oxidase test sample, some inhibition is observed. Please look at the graph and answer the questions given below to solve the mystery.

1. Inhibitor is of which type?
1. Uncompetitive
2. Competitive
3. Non- competitive
4. Mixed
2. What is the effect of inhibitor on Vmax of the reaction?
1. Same
2. Decrease
3. Increase
4. Data insufficient
3. What is the effect of inhibitor on the Km of the reaction?
1. Same
2. Decrease
3. Increase
4. Data insufficient

30 Tips for Good Photographers

Post under Photographs, Tips at Wednesday, January 13, 2010 Posted by Atharali

30 useful tips for professional photographers.

In this case this are not rules that a good photographer must follow… but this half hundred tips are things that we should know, memorize and put into practice by every lover of the beautiful art of photography.

1. Study the manual of our cam. We should be able to use every possible function of the instrument with which we are going to capture images.
2. Do not use sunglasses when taking pictures
3. Work with the highest resolution that the cam has
4. Have presented the limitations that the flash has
5. Archive the pictures using different categories, and order them chronologically
6. In every download of the pictures (cam-PC), make back up copies
7. Use post-processed on copies, not on original images
8. Be careful in the way we hold the camera, our fingers shouldn't be in front of the cams censor
9. In the case of compact cameras do not use digital zoom
10. Keep the screen off will help to save battery
11. Before a photographic session we should check that our batteries are full. Its always good to have more than one, just in case.
12. Hold firmly the camera with both hands, and keep your elbows beside your chest. Sometimes it's better to stand over something.
13. Push the button of the cam softly, to capture a good image
14. Be sure that the memory isn't full before starting a session
15. Take your time to select the place and every object or person which will appear in the image, in this way elements which don't give the picture any information or beauty wont appear
16. Make different shots from different angles
17. Be careful with little cameras, because not everything that appears in the screen appears in the image or in the other way
18. Do not use inclined earth line
19. Sometimes use vertical format
20. The best light is the one from the morning or the afternoon, do not use midday light
21. Cloudy days give great light for landscape shots
22. Our shadow (the photographer's one) shouldn't appear in the picture
23. Focus with precision on the main theme
24. Be careful at the beach, sand and salt may harm your cam
25. Do not hurry when taking a picture
26. Look information in the internet, everything is there
27. Do not fear to experiment with your equipment
28. See and study, master photographers images
29. In our composition use negative space as an alternative resource
30. Practice, practice, practice

David Garibaldi creates a Creative Speed Painting (Jimi Hendrix)

Post under Amazing Stuffs, Hot Videos at Wednesday, January 13, 2010 Posted by Atharali

Mysterious Bottle Art

Post under Arts, Beautiful, Wonderful at Wednesday, January 13, 2010 Posted by Atharali

Mystified residents have been baffled by empty milk bottles appearing on their doorsteps for months with intricate art etchings created by an artist that’s been dubbed as ‘Pic-glasso’ and ‘Bottle Banksy’ after the enigmatic guerilla graffiti artist whose work appears overnight on buildings across Britain that continually escapes unseen.

When homeowners have gone to grab milk left from the dairyman to sit down to their morning java, they’ve been surprised to find the bottles replaced with an extra empty engraved with images of cows, mice, farmyard scenes and animals into the glass with incredible detail, and the artist long gone.

The bottles started appearing mysteriously at homes in Stourbridge, West Midlands, and surrounding villages last spring, much to the delight of the homeowners, but the identity of the artist remained unknown.

Dawn Jones, 81, from Stourbridge, said she received one drawing and was hoping to get another one. “I am collecting them for my grandchildren, they are marvelous.”

“I had heard something about this from a friend, but nobody knows who is doing it.” said Jackie Dimock, who discovered one of the bottles on her doorstep on Monday.

“I was putting out the empties and I noticed there was an extra one on the doorstep.” she said.

“When I picked it up I saw there was this amazing picture on it. The milkman came to collect the bottles, but I didn’t want to give him the one with the picture on it, I’m going to keep it.”

“Who knows, it might be worth something one day.”

Some of the bottles are left out for refilling and distributed to other homes, but many have been kept as souvenirs or artworks by thrilled residents, and others have even been traded on internet auction sites.

But unlike the ever-elusive Banksy, the artist’s identity behind the milk bottle creations has been revealed as Charlotte Hughes-Martin.

The 30-year-old artist painstakingly engraves the bottles with her own designs — some serious, and others humorous. Once completed, she returns the bottles to random doorsteps in the area, where they’re collected for refilling.

Originally from Cheshire and currently based at the Red House Glass Cone in Wordsley, Stourbridge — a former glass factory — Charlotte uses a variety of techniques, materials and styles to engrave the bottles, taking her inspiration from everyday life. And fittingly, many of her etchings are milk related or feature cows.

Two pieces of her work had been short-listed for the prestigious national Glass Biennale prize.

“Reaction to this milk bottle project has come as a bit of a shock to me. The project started out as something I was doing for myself, and so the immediate interest received from such a wide audience and the Press has been a little overwhelming.”

“The aim of this project was firstly to have a bit of fun; to release art into “the world” and see what would happen. If I introduced something new into the communal glass arena, being moved from one person to another, would it open peoples’ eyes to more of the everyday stuff around them? Would I make the milkman paranoid at the graffiti, and would it get back to the dairy?”

“I was curious to see what would happen.”

“I have started experimenting by taking glass forms and aim to make large scale, highly polished, cast glass.”