Approved plants for biochem projects

Sat, 20 Sep 2008 07:28:27 +0000

Go to the appropriate page on the left menu to check if your proposed medicinal plant has been approved. The last day for submission of proposals is Friday (September 26, 2008).

For all my students

Wed, 02 Jul 2008 19:41:02 +0000

I’ve uploaded a file on how to format your bibliography. I expect everyone (but more so the High School students) to follow these formatting guidelines when listing references in all assigned research work.

Download How to format your bibliography

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Sat, 21 Jun 2008 01:58:25 +0000

Click on the appropriate page on the left window to find what you’re looking for. Contents are arranged per subject area.

What is it?

Sat, 21 Jun 2008 01:55:00 +0000

I’ve always been fascinated by close-up pictures so I’d like to share some of those that I found in the net. Guess the mystery picture and win 3 bonus points in your quizzes. Email your guess to hgc@hedcen.com. Answers and image credits come out on weekends.

Image for July 21 to 25, 2008

Image for June 30 to July 11, 2008

This one goes out to Seth Rasul (Grade 6) along with ten points to his Chemistry quizzes! No man is an island because each one is an ecosystem (a cazy saying from yours truly)- and this picture bears perfect testimony. Demodex folliculorum and Demodex brevis are tiny arthropods (the largest group or phylum of animals that are characterized as having segmented bodies and appendages and exoskeletons; examples of this group are crabs, spiders, beetles and the like) that feed on dead skin cells, oils and hormones found at the base and around our eyelashes. The mites live for only several weeks and have very efficient digestive systems- so much so that they no longer have an excretory opening (otherwise, you will have mite poop on your eyelashes!). The adults measure only 0.3 to 0.4 mm long and move around at night at the rate of 8 to 16cm/hr. This roughly translates to a human moving at 5 meters/second. Not bad when you consider that the current record for the fastest running human is at 10.28 m/s (held by Jamaican Usain Bolt).

More photos of eyelash mites below:

Photo above taken from: Pictures and Videos of Parasites. Electroherbalism: Ancient Wisdom, Modern Technology. http://www.electroherbalism.com/Naturopathy/MiscAltHealthTopics/Parasites/Parasite_Pictures_and_videos.htm. July 19, 2008.

Photo above from uncited source in Google Image search.

Info and image credits: Stephen Gschmeissner. Novartis/Daily Telegraph Visions of Science 2004 - Category: Close-up. 2nd: Eyelash mites. http://www.bbc.co.uk/manchester/content/image_galleries/visions_of_science_exhibition_gallery.shtml?3. June 30, 2008. Additional info from Wikipedia.

Image for June 23 to 30, 2008

Edward dela Cruz (Grade 6 Jose) has guessed this image right! It is a close-up of the fingerprints on a human skin. The ridges are the lines we see in fingerprints while the small “pot-hole” like depressions are pores. The position of pores as well as the pattern of the ridges are unique for each individual on the planet. That’s close to 6.7 billion unique patterns! There are even those without fingerprints. The Huang-Tien family in Taiwan has had no fingerprints for at least five generations!

Edward gets a 3-point bonus in his Chemistry quizzes.

Info and image credits: Mainguet, Jean-Francois. Fingerprint, palmprint, pores. June 20, 2008. http://pagesperso-orange.fr/fingerchip/biometrics/types/fingerprint.htm.
Image for June 16 to 20, 2008

The image shows the ice-covered dunes of Mars in the Northern Hemisphere. As spring begins, the ice melts revealing dark spots of sand. The dunes would appear dark when the ice completely melts in summer.

Info and image credits: Speed of Thought. Mystery Image of the Day. June 15, 2008. http://homepage.mac.com/sbooneaz/iblog/index.html

HGC@HEdCen.com

Approved plants for biochem projects

For all my students

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What is it?