Pivot tables:
Goodbye desktop, we're off to see the web. Both my students and I have been challenged this semester by the diversity of computer platforms, software versions, and unexpected bugs. Naturally, I turned to the world and my readers for help and suggestions. Some readers have suggested we could solve everything by using Linux. Others have convincingly demonstrated that Open Office...
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Posted on April 3, 2008 12:40 PM • 6 Comments •
I've been writing quite a bit this week about my search for a cross platform spread sheet program that would support pivot tables and make pie graphs correctly. This all started because of a bug that my students encountered in Microsoft Excel, on Windows. I'm not personally motivated to look for something new, since Office 2004 on Mac OS 10.5...
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Posted on March 14, 2008 2:31 PM • 21 Comments •
I think all of us; me, the students the OO advocates, a thoughtful group of commenters, some instructors; I think many of us learned some things that we didn't anticipate the other day and got some interesting glimpses into the ways that other people view and interact with their computers. Some of the people who participated in the challenge found...
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Posted on March 13, 2008 6:42 PM • 0 Comments •
Okay OpenOffice fans, show me what you can do. Earlier this week, I wrote about my challenges with a bug in Microsoft Excel that only appears on Windows computers. Since I use a Mac, I didn't know about the bug when I wrote the assignment and I only found out about it after all but one of my students turned...
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Posted on March 12, 2008 12:50 PM • 35 Comments •
Three (or more) operating systems times three (or more) versions of software with bugs unique to one or systems (that I don't have) means too many systems for me to manage teaching. Thank the FSM they're not using Linux, too. (Let me see that would be Ubuntu Linux, RedHat Linux, Debian Linux, Yellow Dog Linux, Vine, Turbo, Slackware, etc.. It...
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Posted on March 10, 2008 8:09 AM • 12 Comments •
Do different kinds of biomes (forest vs. creek) support different kinds of bacteria? Or do we find the same amounts of each genus wherever we look? Those are the questions that we'll answer in this last video. We're going to use pivot tables and count all the genera that live in each biome. Then, we'll make pie graphs so that...
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Posted on February 26, 2008 10:58 AM • 3 Comments •
This is third video in our series on analyzing the DNA sequences that came from bacteria on the JHU campus. In this video, we use a pivot table to count all the different types of bacteria that students found in 2004 and we make a pie graph to visualize the different numbers of each genus....
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Posted on February 26, 2008 10:47 AM • 0 Comments •
What do you do after you've used DNA sequencing to identify the bacteria, viruses, or other organisms in the environment? What's the next step? This four part video series covers those next steps. In this part, we learn that a surprisingly large portion of bioinformatics, or any type of informatics is concerned with fixing data entry errors and spelling mistakes....
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Posted on February 26, 2008 10:19 AM • 0 Comments •
For the past few years, I've been collaborating with a friend, Dr. Rebecca Pearlman, who teaches introductory biology at the Johns Hopkins University. Her students isolate bacteria from different environments on campus, use PCR to amplify the 16S ribosomal RNA genes, send the samples to the JHU core lab for sequencing, and use blastn to identify what they found. Every...
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Posted on February 26, 2008 10:14 AM • 0 Comments •
I am a microbiologist and molecular biologist turned tenured biotech faculty turned bioinformatics scientist turned entrepreneur. My passion is developing instructional materials for 21st century biology (Geospiza Education).
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