Tuesday, January 15, 2013

Immunity and the Art of War

READ THIS POST AS A REVIEW, AND THEN GO TO THE LESSON PAGE: IMMUNE SYSTEM 

What are the parts of the Immune System?
 -

 Who are the Bad Guys? (pathogens)
 


What is the body's first response to infection?




B-cells: what do they do?  When they are activated (by Helper T cells) they clone themselves into two kinds: first the plasma cell, which is a factory for antibodies, and also a memory cell (the diagram below should have antibodies on its membrane) which hang around a long time.

B cells



What do antibodies do?The antibodies, being released into the "humors" which are the bodily fluids or plasma, attach to the antigens, doing two things: first they prevent the virus from fusing with the cell membranes, and secondly, they flag the virus to be eaten by macrophages.




What is the Big Picture? Re-draw and memorize this.



NOW GO TO THE LESSON PAGE: IMMUNE SYSTEM


Monday, December 3, 2012

Get Some Sleep... (after you finish all your homework)

 
brainPOP.com -
username/password:  pcshome  ilearnathome
http://www.brainpop.com/health/personalhealth/dreams/
movie, quiz & FYI (skip activity/vocab.)    10 pts.

  40 FACTS ABOUT SLEEP YOU PROBABLY DIDN'T KNOW...    http://www.abc.net.au/science/sleep/facts.htm
5 pts.

Science of sleep, parts 1 & 2 - 26 minutes  15pts.
Pt 1- http://www.cbsnews.com/video/watch/?id=4181992n 
Pt 2- 
  http://www.cbsnews.com/video/watch/?id=4181994n

But, of course, the main event is preparing for your presentations next Monday.  (Look over the assignment sheet from last week to see that you have included all you are required).  In addition, I would like you to turn in a bibliography, MLA style.  Easy way, use easybib.com --
Top of the page "The Free Automatic Bibliography and Citation Maker"   You should use the "Add Annotation" button to briefly describe what this resource was about.
If this is confusing, I will show you how to use this site next week, and you can turn it in the following Monday.

Monday, November 26, 2012

Sleep Cycles





 Sleeping...there's an app for that!  http://www.sleepcycle.com/
 Or this one:
http://www.proactivesleep.com/importance.php
This site has some actual information that you should read. On the header bar choose "About sleep" and click on each of the five sections.  Jot down a few notes. [Importance, Bodily cylces, Inertia, Napping, and Sleep problems.]

Brainpop.com - [pcshome/ilearnathome]
http://www.brainpop.com/health/personalhealth/sleep/
movie, quiz, activity pages- graphic organizer only, FYI.


MAIN THING: 
First, print out page 9 from this pdf :
http://science.education.nih.gov/supplements/nih3/sleep/guide/nih_sleep_masters.pdf
 It may be helpful or necessary to also print out pages 10-15 (these are included in the interactive, but it may be more helpful to some if they are printed out.)
Then go to the website, Lesson 2: Houston, We Have a Problem and complete the activity.  In the end you should have filled out the Astronaut Telemetry Evaluation Form (the page 9 which you printed out.)
 

Monday, November 19, 2012

Happy Thanksgiving!

Very little homework, and no homework page--that's something to be thankful for...
One thing only --Just start a sleep log.  Print out the first four pages of this pdf file: http://science.education.nih.gov/supplements/nih3/sleep/guide/nih_sleep_masters.pdf  and do what it says.  Get started right away, and if you forget one day, add another day to the end.  You will also need to count how many caffeinated drinks you have in the morning, afternoon and evening. 
Have a lovely holiday!http://media-cache-ec5.pinterest.com/upload/2814818488694184_DfuhjCUn_c.jpg



Monday, November 12, 2012

Follow the Yellow Brick Road...

True confessions--I am no teacher.  I am a home-school mom who is just one step ahead,  stumbling through the fields of knowledge, trying to find something better than knowledge, and leaving a path of breadcrumbs for you to follow.


Looks Like Peacock
Caffeine crystal

Hopefully, the homework will be that path.  Gather the information and make of it something more. Put together the pieces.  And may the water of facts and information become the wine of wisdom through the power of God's transforming grace.


Monday, November 5, 2012

Winner of the Ig Nobel Prize in Neuroscience goes to...

...Craig Bennett, Abigail Baird, Michael Miller, and George Wolford [USA], for demonstrating that brain researchers, by using complicated instruments and simple statistics, can see meaningful brain activity anywhere — even in a dead salmon.
Scanning Dead Salmon in an fMRI Machine Highlights Risk of Red Herrings  fmri-salmon



Monday, October 29, 2012

Thank you for your kind attention...

Halfway to Christmas!!  I am enjoying the light and the warmth and beauty of these fine fall days.

I hope you are finding our study of the brain an interesting endeavor, and that your mind is expanding even as you practice discerning the difference between a supported scientific claim  and what is really only an opinion--and also telling the difference between a good and bad opinion.  I am fine with you having your own as you seek both wisdom and truth.

I would love to hear what your opinion is, especially as you look at some of the new studies on the teenage brain.  Agree/disagree??  There are six segments to the long video, and the first is really annoying, but don't give up, it should pick up.

Happy diligent studying.
+++++++++++++++++++++++++++++++++++++++++++++
Current Events:  10 years ago we finished mapping the human genome, now underway is an effort to map the neural connections of the brain.  It's called the Connectome.Multicolor image of brain showing brain’s circuits
  1. The human connectome. Functional magnetic resonance imaging (fMRI) of the brain when it is at rest (sometimes called resting state fMRI) has emerged as a powerful approach for detecting correlations of large, infrequent fluctuations in activity levels across functionally related brain areas. A collaboration across 35 laboratories in 10 countries compared patterns of brain-function connection (called connectomes) in 1,414 volunteers, yielding harmonized brain maps based on age and gender.2 As with the human genome, this functional connectome is important not only for providing a reference wiring map of the human brain, but also demonstrating intriguing, stable individual differences. New projects on the human connectome, supported via the NIH Blueprint for Neuroscience Research, will be exploring individual differences and developing more precise tools for measuring connections in the human brain. http://www.humanconnectome.org/consortia/