WELCOME to NATS104 sec. 7

Assigned readings are online. No textbook!

If you add the class late, be sure to do all lecture quizzes and workshops available.

ASSIGNED SEATING

Be sure to sit in your assigned seat, regardless of what time you intend to arrive or depart.
09/24/09



Check the new ASSIGNED SEATING chart before coming to class.

If you had an assigned seat during the first lecture, your new seat will be nearby, unless you've requested a laptop-eligible seat at the tables in back of the class.
09/25/09



New ASSIGNED SEATING chart Fri 9/28/09 (above)

There was another huge flux of students into and out of NATS104. Hopefully, the $25 migration fee will reduce these numbers and we'll be able to keep the current chart.

NATS104 in subject line (above)

I discovered several unanswered emails in my "Junk E-Mail" box yesterday afternoon. Thanks for all the emails, but I won't see them if you don't put NATS104 in the subject line.
09/28/09



ASSIGNED SEATING CHART
Mon 8/31/09

NOT changed for students enrolled Friday. NEW STUDENTS marked yellow for first letter of last name

NATS104 in subject line (above)

I discovered several unanswered emails in my "Junk E-Mail" box yesterday afternoon. Thanks for all the emails, but I won't see them if you don't put NATS104 in the subject line.
08/31/09



ASSIGNED SEATING CHART
dated 9/1/09

NOT changed for students enrolled Friday 8/2/09. There continues to be a huge flux of students into and out of NATS104. I have updated the chart FOR NEW STUDENTS for Wed, but it is becoming impossible to check student's assigned seating, because the names are not alphabetical. Therefore, the chart FRIDAY 9/4/09 will be re-alphabetized and ALL seats will change except for persons with special-needs assigned seating.
9/1/09



ASSIGNED SEATING CHART
(dated 9/1/09)
NOT changed for students enrolled Friday 8/2/09. There continues to be a huge flux of students into and out of NATS104. I have updated the chart FOR NEW STUDENTS for Wed, but it is becoming impossible to check student's assigned seating, because the names are not alphabetical. Therefore, the chart FRIDAY 9/4/09 will be re-alphabetized and ALL seats will change except for persons with special-needs assigned seating.

BE PREPAIRED: WK 2
Bring your seedling experiments to class Fri. The GTA cannot grade your hypothesis in D2L Wks 2 until they see your seedling experiment.
9/2/09



ASSIGNED SEATING CHART
(dated 9/4/09)
CHECK YOUR SEAT # BEFORE CLASS
Everyone's seat has changed except for persons with special-needs assigned seating. There may be one more revision after the first exam.

BE PREPARED: WKS 2
Bring your seedling experiments to class today. The GTA cannot grade your hypothesis in D2L Wks 2 until they see your seedling experiment.
Hypothesis examples Kadeon
Elementary Hypothesis

9/4/09



ASSIGNED SEATING CHART
(dated 9/4/09)
CHECK SEAT # BEFORE CLASS
No one's seat has changed except for persons with special-needs assigned seating.
WK 3 Example

9/9/09



NEW PICTURES

Thanks to the NATS104 students who have sent pictures to appear on this D2L homepage.

WEEKLY REVIEW

The UA advisors are offering weekly reviews for participating high-enrollment classes. Ours is 6:00pm Thr in ILC 145. Schedule

9/14/09



WEEKLY REVIEW

The UA advisors are offering weekly reviews for participating high-enrollment classes. Ours is 6:00pm Thr in ILC 145. Schedule

FLU PANDEMIC PROCEDURE

If you become ill with the flu, do not come to class until you have had NO FEVER for 24 hours. You are responsible for contacting me via email (USE THIS FORM) as soon as you are able. Complete workshops and quizzes from home if you are able. You are responsible for any work missed while you are ill.

SCARLET FEVER
Caused by Streptococcus bacteria like strep throat, but with more serious symptoms including a rash and red color in the creases of the underarm and groin. These Streptococcus bacteria are capable of destroying red blood cells.
Plasmid
9/15/09



UA Advisors Review

Several students indicated that they intended to participate in the 6:00pm Thr in ILC 145 review of this weeks NATS104. Did any of you attend this review? I'd be grateful to know how it turned out!

EXAM 1 NEXT FRIDAY

Next Wednesday, we'll review the course material up to that time, and Fri will be the first exam. The exams are distributed BY SEAT NUMBER, so you MUST be in your assigned seat.
In order to not distract from your preparation for Exam 1, I have extended the final date for workshop 4, including the due-date for the plasmid, until Fri. Oct. 2.
9/18/09

EXAM 1 FRIDAY

BE PREPARED: Bring a #2 pencil & an eraser for the exam answer sheet. Syllabus!

EXAM 1 FRIDAY

Only 8 students have taken advantage of the practice exams. One 1 has attempted both the online and D2L versions. Do them as many times as you can and study between each attempt.

Workshop 4

The plasmid is not due until Fri. Oct. 2, one week after the exam.
9/21/09



EXAM 1 FRIDAY

BE PREPARED: Bring a #2 pencil & an eraser for the exam answer sheet. As directed in the Syllabus!

Exam Form & Answer Sheet

Use your own Exam FORM.
Complete the answer SHEET correctly.
Don't loose points!

PRACTICE EXAMS

What we did during the internet blackout Wednesday is to look at two OLD exams a & b (on the schedule for Sep 23 f [the day of the exam])
LECTURES 1-8 examples a b

What's much more helpful is to do the REVIEW
Review

and the practice exam under "Quizzes & Workshops" on D2L
Practice Exam 1

9/23/09



EXAM 1 FALL 09
The average grade for Exam 1 was 70% = "C"
The grades were lower than the 2 previous semesters, due primarily to the higher numbers of "Ds" & "Es."
The number of persons completing the practice exams was 15% less than last semester, and the number of mistakes on the answer sheets was twice as great.

NEW ASSIGNED SEATING CHART
Due to the large number of drops, there will be a new assigned seating chart, WEDNESDAY. You are responsible for looking up your assigned seat before coming to class.

9/28/09



DEBATE WK5 FRIDAY
To participate you'll need your pro and con statements, the debate report form for your group - to be handed into your GTA after the debate, and your PLASMID (with your name on it or taped securely to a paper with your name on it. If you aren't listed on a debate report you get no credit for workshop 5.
This symbol "" in D2L WK 5 means you must participate in the debate, NOT that you are forbidden! If you participated, just click on "WKSHP 05 Debate" like you normally would.

OFFICE HOURS
Office hours will be truncated Monday at 2:30 for faculty senate.
p
10/2/09



1st TERM PAPER WORKSHOP - 6
Friday, we begin the NATS104 term paper workshops, which together with the paper itself constitute 1/3 of your semester grade. BE PREPARED! Read the instructions before Friday's workshop! Don't put it off until the last minute! syllabus

Workshop 4
The GTAs have all submitted the plasmid grades and these have been added to the workshop 4 scores for those who attempted the workshop.

10/7/09



GENETIC ENGINEERING
Nature 8 2009 461 (7265): 697-836
from: Cell Stem Cell 2009 5 (434-441): 353-357

A well-known cocktail of genes can reset many adult cells to ‘pluripotency’, a state from which they can develop into almost any tissue. Now, two groups have derived induced pluripotent stem (iPS) cell lines from umbilical cord blood, a source that could be clinically useful.
Ulrich Martin of Hannover Medical School in Germany and his colleagues created the cells from cord blood using four genes, OCT4, SOX2, NANOG and LIN28. Juan Carlos Izpisúa Belmonte at the Salk Institute for Biological Studies in La Jolla, California, and his collaborators generated iPS cells using as few as two genes, OCT4 and SOX2.
Cord-blood cells have not acquired as many mutations as other cells, so stem cells such as these might be less prone to turn cancerous if used as therapy. Nevertheless, both groups used viruses to insert the genes, reducing the cells’ direct therapeutic utility.

10/09/09



WORKSHOP 6
A lot of people are having problems submitting workshop 6 in the 30 minutes allotted. ALWAYS answer the questions in the instructions BEFORE attempting the quiz so you can cut-and-paste the answers into the text-boxes in the D2L workshop.
There have been no D2L outages this weekend. If you're having D2L problems and are using a MAC (1) use only Firefox (2) run the browser check again.

How We Lost Our Diversity
By Ann Gibbons
ScienceNOW Daily News
8 October 2009
    Modern humans are a lot alike--at least at the genetic level--compared with other primates. If you compare any two people from far-flung corners of the globe, their genomes will be much more similar than those of any pair of chimpanzees, gorillas, or other apes from different populations. Now, evolutionary geneticists have shown that our ancestors lost much of their genetic diversity in two dramatic bottlenecks that sharply squeezed down the population of modern humans as they moved out of Africa between 60,000 and 50,000 years ago.
    Researchers have known since the 1990s that Africans are the most genetically diverse people in the world. Humans outside of Africa are missing many genetic variants found only in Africans and, indeed, the farther a traditional group lives from Africa, the less diversity it has in its genes and morphological traits, including skull shape (Science, 6 January 1995, p. 35). Genetic diversity is usually considered a good thing: the more a population has, the more likely individuals will have gene variants that will help them adapt better to new climates, diets, and life-threatening diseases, such as malaria or smallpox. Many scientists have suggested that those who left Africa went through a bottleneck, where only a small number of individuals had offspring, thus reducing genetic diversity. But until recently, little research has been done to pinpoint how that diversity was lost.
    Large, new genetic databases from diverse populations have given researchers new tools to study this problem, but, so far, they have produced mixed results. One model proposes that genetic diversity was lost in two distinct bottlenecks, where groups of hundreds or thousands of migrating people were quickly decimated by disease, starvation, warfare, or some other cause, dramatically reducing the number of adults who bore children that survived. Another suggests that genetic diversity was reduced in a stepwise fashion as an initial group of about 100,000 or so people moved out around the globe, gradually leaving behind more and more people in settlements along the way.
    With the recent publication of a large data set of 763 microsatellite markers--short stretches of DNA that are repeated in the genome--from 53 populations in the Human Genome Diversity Project, evolutionary geneticists William Amos and Joe Hoffman of the University of Cambridge in the United Kingdom had enough genomic data to test both models.
    Using a software program called BOTTLENECK, the two searched for the signature of bottlenecks or founder effects in each population to see if the loss of diversity occurred suddenly or gradually as adjacent populations moved farther from Africa. Different genetic markers of diversity decline at different rates, creating an imbalance. The larger the imbalance, the stronger the evidence of a bottleneck.
    The team uncovered strong signs of this imbalance between rare alleles and heterozygosity in two populations--one, in people living today in the Middle East, and the other in the Yakut, who live near the Bering Strait. That indicated to the researchers that the first bottleneck occurred as people migrated out of Africa to the Middle East about 50,000 to 60,000 years ago, and the second, 19,000 kilometers away, when they crossed the ancient land bridge in the Bering Strait to the Americas. The scientists report their conclusions online today in the Proceedings of the Royal Society B: Biological Sciences.
    What caused the bottlenecks? Amos suggests that obstacles--such as the sea, glaciers, or mountains--on the route from Africa to the Middle East, across the Himalayas and over the Bering Strait, held many migrants back, so that a much smaller group moved on, producing offspring to inhabit new parts of the globe. Changes in climate may also have opened and closed new routes out of Africa, creating new barriers. The results are convincing, says anthropologist Henry Harpending of the University of Utah in Salt Lake City. "This paper is a "nerd's delight, for the clever statistical technology."

10/12/09



TWO THINGS!
after completing WKSHP 06 Term Paper Introduction
you still have to complete
"Term Paper Topic REQUIRED for Wksps 9 10 & Term Paper"BOTH!

DON'T FORGET YOUR
assigned seat number
    student ID
        username & password

Weekly Review
If you attend the NATS104 review 6:00 pm Thr, ILC 145, please let me know.

10/13/09



REMINDER I
Although we have reached the halfway mark in the semester, you can still improve your grade substantially. Your lowest 2/12 workshops and 7/27 lecture quizzes will be dropped. And, none of the points for your term paper have been awarded. (Syllabus).
You can do it!

REMINDER II
For your term paper, choose your references carefully. You're at the University, now. You cannot cite an encyclopedia or Wikipedia. (Wk6.rtf)
Some online sites provide information and distribute "publications" that should not be used in your papers as sources of legitimate information. Examples: Flat Earth, American Nazi Party, Alien Abductions.

10/15/09



Term Paper PAIRINGS
Based on the topics you selected (Term Paper Topic REQUIRED for Wksps 9 10 & Term Paper) you have been paird with another student. JUST CLICK ON "|Discussions|" to find your pairing. 98% of the pairings are with students writing on the same topic. However, topics with only one student or topics with an odd number of students produced three pairs with different topics.

Term Paper ELIGIBILITY
The term paper instructions (Wk6.rtf) have been thoroughly rewritten to make them simpler and to remove conflicting and outdated information from previous semesters. The sequence of exercises is the same: you must complete each step to be eligible for the next. If you fail at any step, you must schedule a meeting with Prof. Davis to gain access to the next step - read the (instructions)!

Plagiarism in Biology

10/21/09



EDUCATIONAL OPPORTUNITY
Don't put it off until the last minute! (Syllabus).
D2L was down, recently, 14.5 hours, 17% of the time allotted for LQ 15. Most (2/3) of the NATS104 students successfully completed LQ 15 in the regularly allotted time. Those who attempted LQ 15 only during the time D2L was down missed the opportunity. As an educational opportunity and in fairness to the majority of students who did not put it off until the last minute, we are offering a 14.5 hour extension to students who email Prof. Davis agreeing not to put it off until the last minute, from now on. Offer ends 1:00pm 10/27/09

 image

Plagiarism in Biology


10/26/09



D2L Pairings Under "DISCUSSIONS"
REMINDER: To find your pairing, search for your last name and click on your pair to open the folder. Click on "Compose" to open the email screen, then click on [Add a File] to search for and upload (1) your 1st rough draft and later (2) your peer review (completed p.8 from wk6.rtf).
NEW
The GTA assigned to grade your term paper and term-paper-related workshops is not necessarily the GTA for your seating section. Their name is printed under the topic on the Discussions page.

Plagiarism in Biology +


10/26/09



REMINDER:
Today (11/02/09) is the last day to deposit your first draft in your folder for credit. After today, you still must deposit the 1st rough draft in order to proceed, but it will be for 0 points credit
EXAM
The grades for Exam 1have been posted, and despite the better use of the online and D2L practice exams the grades are 10 points lower than last semester and 5 points lower than Exam 1, this semester.

11/02/09



REALLY COOL LINK
Remember the cells lecture? Here's a great graphic (use the slide-bar) comparison of the sizes of cells, bacteria and viruses.
Contributed by student S.E.

FLU II
More H1N1 cases on campus!
  • Flu Form fill this out if you get the flu!
  • Campus flu information: www.health.arizona.edu/webfiles/flunews.htm
  • UA preparedness planning: http://cert.arizona.edu
  • A checklist of things to do to keep your family healthy: http://flu.gov/individual/checklist.html

    CELLPHONE & LAPTOP CLASS DISRUPTION
    The number of repeat-offenses of cellphone and laptop disruption has significantly increased the last three weeks. Classmates have complained that the usage is disruptive. The GTAs inform me that the students disrupting the class by using cellphones and laptops have all been warned verbally at least twice. This serves as a written warning. We are instituting a
    THREE STRIKES RULE. those who have been warned by the GTAs already have one strike against them.
    With STRIKE TWO you must leave the classroom for the rest of the period and you will receive a second written warning from Prof. Davis.
    With STRIKE THREE the student's disruptive behavior will be referred to the Dean of Students for disciplinary action.
    Consult the Syllabus for further information.

    11/03/09



    FLU Form. Fill this out if you get the flu!


    THREE STRIKES POLICY:
    CELLPHONE & LAPTOP CLASS DISRUPTION
    You must leave the class for the period and then will be referred to the Dean of Students. If you missed this announcement Monday, read it in the old announcements link at the bottom of this page.

    DEADBEAT PEER REVIEW PARTNERS
    Deadline for the first draft was Monday, 11/02/04. The GTAs warned those who were tardy, and have now assigned persons who DID follow the rules to new peer-review partnerships. Persons who did not submit their first rough drafts on time will not be eligible to submit their term papers.

    11/05/09



    FLU Form. Fill this out if you get the flu!

    THREE STRIKES POLICY:
    CELLPHONE & LAPTOP CLASS DISRUPTION
    You must leave the class for the period and next time will be referred to the Dean of Students. If you missed this announcement Monday, read it in the old announcements link at the bottom of this page.

    DEADBEAT PEER REVIEW PARTNERS
    Deadline for the first draft was Monday, 11/02/04. The GTAs warned those who were tardy, and have now assigned persons who DID follow the rules to new peer-review partnerships.
    Students who did not submit their first rough drafts on time will not be eligible to submit their term papers until they have been re-paired and have completed the peer-review process with a NEW PARTNER assigned by the GTA. To obtain a new partner, email the GTA in charge of your topic as soon as you have deposited your first rough draft.

    11/05/09



    WORKSHOPS 8 & 9
    The peer review (WK 8) and self review (WK 9) are not under "quizzes & workshops." Your peer-review and self-review forms (wk6.rtf) are graded in your folder, and the grades are recorded on spreadsheets given to Prof. Davis.
    Those who were given late pairings, and who have exchanged papers and reviews by email should deposit copies in their folders as a dated record of their work -- the folders assigned in the original pairings. No new folders will be assigned.

    FLU Form. Fill this out if you get the flu!   More Information

    THREE STRIKES - DISRUPTION
    see old announcements 11/03/09

    RE-PAIRING PEER REVIEWs
    see old announcements 11/05/09

    11/09/09



    WKS 8 & 9 and Term Paper
    The following comments and suggestions for the workshops and Term Paper were made during Friday's GTA meeting.
    1. There have been way too many failures to follow instructions, including file formats, deadlines, and reference format examples.
    2. If you hand in your peer-review or self review after the deadline, you get zero credit.
    3. Too many students are ignoring the grammar and spelling suggestions made by their word processors.
    4. The NATS104 Term Paper is not an emotional expository essay! It is a synthesis of scientific information. Expect to lose points if it isn't a synthesis of scientific information.
    5. We encourage you to work together, but EVERYTHING you submit must be in your own words and not copied from any other person or source.
    6. The number of persons (35) who have been been given new partners after the posted deadlines has delayed submission of grades. Therefore, since TurnItIn.com cannot be opened until credit for the self review (WKS 9) is submitted by the GTAs, TurnItIn.com will not be opened until Friday, Nov 20. The General due date for the Term Paper will still be Nov. 23.

    NOTE: the TFR is NOT "divided by 2" as announced in class. The readings are correct. For zero population growth, the woman produces two children, replacing herself and her husband.

    11/16/09



    TERM PAPER SUBMISSION
    TurnItIn will become available for submission of Term Papers after noon on Friday, Nov. 20. Those of you who have NOT previously used this service will be emailed instructions for creating an account. Those who HAVE used it before will receive a different message. TERM PAPER GRADES WILL NOT BE RECORDED FOR STUDENTS WHO HAVE NOT COMPLETED THE SELF REVIEW (WK 9).

    Due to the traditionally low attendance on the Wed before Thanksgiving, there will be NO LECTURE Wed, Nov. 25. The D2l quizzes for lectures 23 & 24 will be available on D2L from Nov 20 - Dec 2 so that any questions for LQ 24 you cannot find in the online lecture notes or assigned reading can be answered by emails to Prof. Davis (who will refer you to appropriate lecture note or part of the assigned readings) :p
    HAPPY THANKSGIVING!

    11/20/09



    TERM PAPER SUBMISSION
    TurnItIn will be open 11-20-09 to 11-28-09 for students who have satisfied the GTA grading their topics. The necessary information has been sent from D2L in 2 emails, it is:
    ------- ---------
    ------- ---------
    ------- ---------
    TERM PAPER GRADES WILL NOT BE RECORDED FOR STUDENTS WHO HAVE NOT COMPLETED THE SELF REVIEW.
    If you want to submit a revised manuscript for ANY REASON, schedule a meeting with Prof. Davis (send a copy of your academic schedule) before 1:00pm Wed Dec 3

    11/23/09



    D2L GRADES
    are now based on 400 points. (all LQ & WK, 2 Ex).

    TERM PAPER GRADES
    Will be completed by 1:00pm Sun Dec 13, the day before the final exam.

    REVISED MANUSCRIPT for TURNITIN  Deadline 1:00pm Wed Dec 3. If you want to submit a revised manuscript for ANY REASON, schedule a meeting by email with Prof. Davis
    (include a copy of your academic schedule)

    11/30/09



    Office Hours 12/07/09 End 2:30
    Due to the UA Faculty Senate Meeting 3:00 12/07/09, Prof. Davis' office hours will end at 2:30pm

    D2L GRADES
    are now based on 400 points, including all LQs, WKs and 2 Ex. WK 12 (12/4/09), LQ 27 (12/7/09) EX 3 (11:00am 12/14/09) and the term paper (11/23/09) are the last graded items. The term papers will be graded by 1:00pm 12/13/09.

    D2L Practice Exam 3  The third practice exam, covering lextures 18-27 is available on D2L.

    12/07/09



    PLEASE HELP
    When you log into D2L there will be a new option for a survey of your GTAs. Please fill out the evaluation for your section's GTA. It is confidential. D2L will give us the summaries, without any student's name attached.

    D2L GRADES
    are now based on 400 points, including all LQs, WKs and 2 Ex. WK 12 (12/4/09), LQ 27 (12/7/09) EX 3 (11:00am 12/14/09) and the term paper (11/23/09) are the last graded items. The term papers will be graded by 1:00pm 12/13/09.

    D2L Practice Exam 3  The third practice exam, covering lextures 18-27 is available on D2L.

    12/09/09



    DON'T FORGET
    If you haven't already, please complete the D2L survey of your GTAs. It is confidential. D2L will send us the summaries, without any student's name attached.

    TERM PAPER GRADES
    Two out of three GTAs have submitted their term paper grades and they have been recorded on D2L.

    THIRD 100 POINT EXAM
    is at 11:00-12:00 TODAY mon. Dec 13 in our "usual room" Modern Languages 350.

    12/13/09



    HAVE A GREAT SEMESTER BREAK!
    Thanks very much for taking NATS104 Life on Earth. You have been a memorable class. This is the largest graduating class in the last three years.

    GRADES
    The table below shows the grades for Exam 3, the Term Paper and the final grades. There were 3 100% for Exam 3 -- that ties the record for NATS104. The median final grade was 76.8%
      X3 TP Fl09
    82 63 15
    69 105 92
    45 43 87
    17 12 26
    32 7 42

    12/17/09