misciwriterseditors Biology, blog, Microbiology

Spinach and siderophores: The bacterial battle for iron

Author: Ada Hagan

Editors: Alisha John, Irene Park

Many remember the boisterous, muscle-bound, tattooed sailor Popeye and the thin-as-a-rail Olive Oyl from Saturday morning cartoons. In times of need, such as when his rival Bluto stole Olive Oyl for the 50th time, Popeye would squeeze open a tin can of spinach. Eating the spinach, sometimes miraculously through his corn-cob pipe, gave Popeye that extra boost of energy needed to escape his bonds and rescue his lady-friend. What was so special about spinach that gave Popeye his superpower?

Continue reading “Spinach and siderophores: The bacterial battle for iron” →

misciwriterseditors Biology, blog, Disease research, Research, Technology

Regenerative medicine – Panacea or hype?

Author: Kaitlin Weskamp

Editors: Brittany Dixon, Zuleirys Santana Rodriguez, Scott Barolo

Zebrafish may not look impressive, but they can do something that no human can: regenerate large portions of organs that are damaged or lost. These fish, each about as long as your pinky finger, are able to regrow amputated fins, repair lesioned brains, and mend damaged eyes, spinal cords, and hearts. This remarkable ability to heal has fascinated scientists for some time, and in recent years, large strides have been made towards translating this regenerative ability to humans. Continue reading “Regenerative medicine – Panacea or hype?” →

misciwriterseditors Biodiversity, Biology, blog, genetics

It’s all in the family! The biology of inheritance, part 1

Author: Shweta Ramdas

Editors: Molly Kozminsky, Jimmy Brancho, Kevin Boehnke

 

Harry Potter has his mother’s eyes. From his father, James, he inherits his black hair, his ability to play Quidditch, and a certain predisposition to mischief. We are all unique combinations of our parents, receiving half our DNA from each. In the genetic lottery, our parents’ genes are scrambled and spliced to create a new individual who carries on the family’s long tradition of snoring into one’s sheets. But besides a rickety knee, shortness of stature, and preferred pizza toppings, what else can we blame on our parents?

Continue reading “It’s all in the family! The biology of inheritance, part 1” →

misciwriterseditors Biology, blog, Chemistry, genetics, Public health, Technology

De-coupling the GMO-glyphosate link

Author: Amira Aker

Editors: Brittany Dixon, Kevin Boehnke

Tinkering with an organism’s genes is the subject of one of the most controversial debates today – and rightfully so. The resulting organisms are commonly referred to as genetically modified organisms (GMOs), and figuring out how to use GMOs in a safe and sustainable manner is hotly debated. This issue isn’t simply a matter of technology, but one of safety, ecology, economics and even morality. Yet, there has been a notable absence of discussion around the broad-based herbicide glyphosate in mainstream media; namely, that over 80% of GMOs on the market today are modified to tolerate glyphosate. This effective herbicide kills pesky weeds without affecting farmers’ GMO crops, saving time and, potentially, money. However, given the vast opportunities that GMO science opens to us, is dedicating so many resources to this single GMO product the right way to go? Continue reading “De-coupling the GMO-glyphosate link” →

misciwriterseditors blog, Mathematics, Research, science behind the scenes, Science education, Technology

P-values, or: infinite shades of grey

Author: Peter Orchard

Editors: Theresa Mau, Belle Moyers, Alisha John

Peter Tea_and_MilkAlmost 100 years ago, the English biologist and statistician Dr. Ronald Fisher was enjoying a cup of tea with his Cambridge University colleagues when another biologist, Dr. Muriel Bristol, made an interesting claim. Bristol asserted that just by tasting her tea, she could infer whether the tea was poured into the cup before the milk, or the milk before the tea.

Continue reading “P-values, or: infinite shades of grey” →

misciwriterseditors blog, Chemistry, Physics, Technology

New elements on the block

Author: David Mertz

Editors: Tricia Garay, Irene Park

Ever since an interactive display was built in my high school chemistry lab (one of only six such installations in the world), I’ve found the periodic table of elements to be a fascinating fixture of science. I remember watching the scientists prepare little displays for each individual element, including the metal gallium which they let me hold in my hand. It was different than most of the metals familiar to us. With a melting temperature just below 30 degrees Celsius (86 degrees Fahrenheit), the metallic cube began to melt right on my palm. Continue reading “New elements on the block” →

misciwriterseditors Biology, blog, genetics, Public health, Research

Mother’s protein intake can affect her child’s weight

Author: Shweta Ramdas

Editors: Ada Hagan, Alisha John, Belle Moyers, and Irene Park

Google “diet for pregnant or nursing mothers”, and you’ll be swamped with web pages recommending foods that help the baby and foods to avoid. There has been considerable research indicating that the diet of pregnant mothers can affect the child’s health (including risk for schizophrenia). But how? And are these effects long-lasting, or do they wear off once the child hits adulthood?

Continue reading “Mother’s protein intake can affect her child’s weight” →

misciwriterseditors Biology, blog, Physics

Being cephalopod: Changing color in a color-blind world

Author: Ada Hagan

Editors: Belle Moyers, Kevin Boehnke, Shweta Ramdas

Just a couple of weeks ago in “Camouflaged: Finding cephalopods” MiSciWriters blogger Irene Park told us about how cephalopods (octopuses, cuttlefish, and squids) alter their skin color, and texture to blend into their surroundings. But based on what scientists know about cephalopods’ eyes, they should be color-blind. So how can they mimic colors with such incredible accuracy?

Continue reading “Being cephalopod: Changing color in a color-blind world” →

misciwriterseditors Biology, blog, Chemistry, Mathematics, Opinion, Physics, science behind the scenes

Science behind-the-scenes: Which fields are “real sciences”?

Author: Belle Moyers

Content Editors: Christina Vallianatos, Molly Kozminsky

Senior Editor: Alisha John

“Well, that field isn’t really science.”

“Oh, that’s just a soft science.”

Most people who work in the sciences have probably heard phrases like these.  Translation: that field is lesser.  The physicists say it about everyone lower than them in the pecking order, as do the chemists, biologists, and so on down the line.  The nuclear physicist Ernest Rutherford famously said, “All science is either physics or stamp-collecting.”  People argue about this at scientific conferences and in the media.   The science and pop-culture webcomic xkcd has even parodied the issue.

Continue reading “Science behind-the-scenes: Which fields are “real sciences”?” →
misciwriterseditors Biology, blog, Disease research, Microbiology, Research, Technology

Virus vs. Bacteria: Enemy of my enemy

By Ada Hagan

In 1917, almost a century ago, a French-Canadian scientist, Felix d’Herelle, and his colleagues discovered bacteriophage. As I discussed in a previous post, bacteriophage (phage) are the viruses that prey on bacteria, turning them into viral factories. The battle between phage and bacteria has raged for millennia, resulting in a beautiful co-evolution where predator and prey each grapple for a temporary upper hand.

We’ve been exploring the depths of this complex relationship, searching for ways to use this enemy of our enemy as a tool against the bacterial infections that plague us. Along the way, we’ve found a number of different techniques to exploit these micro-allies.

Continue reading “Virus vs. Bacteria: Enemy of my enemy” →