Category Archives: Students

Items for students and others, interested in learning about science and engineering and the application of science in our lives. We post many of the general interest items here.

Exploring Eukaryotic Cells

This webcast is packed with information on the makeup and function of eukaryotic cells, which are the type of cells found in animals. It is part of a interesting series of science webcasts by Crash Course. The webcast style might be a bit too hyperactive and flippant for some but the content is quite interesting and the videos they are are of similar style and quality so if you like this one you can subscribe to their channel. They offer quite a few webcasts on science but they also offer webcasts on history.

Numeracy: The Educational Gift That Keeps on Giving

I like numbers. I always have. This is just luck, I think. I see, how helpful it is to have a good understanding of numbers. Failing to develop a facility with numbers results in many bad decisions, it seems to me.

A new article published in closed anti-science way, sadly (so no link), examines how people who are numerate (like literate but for number—understand) process information differently so that they ultimately make more informed decisions. Cancer risks. Investment alternatives. Calories. Numbers are everywhere in daily life, and they figure into all sorts of decisions.

People who are numerate are more comfortable thinking about numbers and are less influenced by other information, says Ellen Peters of Ohio State University (sadly Ohio State allows research by staff paid by them to be unavailable to the public – sad), the author of the new paper. For example, in one of Peters’s studies, students were asked to rate undergraduates who received what looked like different test scores. Numerate people were more likely to see a person who got 74% correct and a person who got 26% incorrect as equivalent, while people who were less numerate thought people were doing better if their score was given in terms of a percent correct.

People make decisions based on this sort of information all the time. For example, “A lot of people take medications,” Peters says. Every drug has benefits and potential risks, and those can be presented in different ways. “You can talk about the 10 percent of the population that gets the side effect or the 90 percent that does not.” How you talk about it will influence how dangerous the drug seems to be, particularly among people who are less numerate.

Other research has shown that only less numerate people respond differently to something that has a 1 in 100 chance of happening than something that has a 1 percent chance of happening. The less numerate see more risk in the 1 in 100 chance—even though these numbers are exactly the same.

“In general, people who are numerate are better able to bring consistent meaning to numbers and to make better decisions,” Peters says. “It suggests that courses in math and statistics may be the educational gift that keeps on giving.”

10 Year Old’s Molecule Design Becomes the Topic of a Scientific Paper

10-Year-Old Helps Professor With Theoretical Chemistry by Marimar White-Espin

[10-year-old Clara] Lazen’s teacher, Kenneth Boehr, introduced Border Star Montessori School’s 5th grade class to the periodic table, molecules and chemical bonds. Lazen found the topic interesting and Boehr gave her the tools she needed to explore the subject.

Equipped with a molecule-building kit, Lazen experimented with the colored wooden balls by creating existing molecules and some of her own.

Lazen approached Boehr and asked if the molecule she created using the kit was real. Unsure of the answer, Boehr emailed his longtime graduate school friend and chemistry professor at HSU, Robert Zoellner.

“Maybe [the molecule] is real and we’ll find out,” Zoellner responded.

Upon further research, Zoellner discovered the particular molecule, tetrakis(nitratoxycarbon) methane, Lazen had created had never been discussed in literature and possibly had never been thought of before.

The significance of the molecule Lazen created is that it has the potential to store energy. The dense structure allows for stable energy storage meaning the molecule can be used to produce energy or as an explosive.

Lazen was excited to hear her discovery could be used as an explosive. “I thought, ‘Wow, it could go boom!’ I could put [the molecule] in a bomb and it could blow up something,” she said.
…
Lazen’s mother, Lori Schmidt was excited to hear that not only would her daughter be a co-author to the scientific article, but the discovery would be recognized in a scientific journal. “One only dreams as a parent,”

Fun stuff.

The Beneficial Phytochemicals in Vegetables Help Us Lead Healthy Lives

If I don’t pay attention, I won’t eat enough vegetables. Even when I do pay attention I still don’t eat enough (but get closer). Paying attention to what you eat is important for your health.

Some tips from the video.

Eat a wide variety of vegetables, to get the benefits each offers.
Cruciferous vegetables have cancer preventing benefits and enhancing the immune system. Vegetables in this category include broccoli and cauliflower.
Berries also have chemicals that aid in the prevention of cancer.

Journal of Emerging Investigators Will Publish Middle and High School Student Research Papers

The Journal of Emerging Investigators is a new journal for publishing research paper and reviews of research papers by middle school and high school students from any country.

The Journal of Emerging Investigators strives to provide students with as much access to original scientific writing as possible. With this in mind, all submissions are covered by an attribution non-commercial, no derivative license. This means that anyone is free to share, copy and distribute an unaltered article for non-commercial purposes.

Graduate students with substantial research experience will review the manuscripts.

All hypothesis driven science is acceptable for research articles. This includes, but is not limited to, life science, physics, chemistry, health, psychology, and physiology. Engineering articles are also accepted as long as there is a clear question and hypothesis being tested.

Hopefully this will encourage some students to give research a try. Advisors may submit items for publication (students have to have an mentor/teacher do the submitting.

Similar journals: The Journal of Experimental Secondary Science, open science 🙂 – Canadian Young Scientist, closed science 🙁

Footballs Providing Light to Those Without Electricity at Home

This is an update on our previous post: sOccket: Power Through Play. This year, Soccket, 3,000 balls are scheduled to be put into use around the world. The college students (all women, by the way) that came up with this idea (harnessing the kenetic energy created while kicking a football [soccer ball] around to power a batter to use for lighting) are continuing to test and develop the product.

That ball has to be able to survive dusty, wet and harsh conditions and continue to provide power. The new, production version of the football powers a water sterilizer, fan, and provides up to 24 hours of LED light. It also can’t be deflated (a side affect of a design that is able to survive the rough environments, I believe).

I love to see engineers focusing on providing solutions for the billions of people that need simple solutions. Creating the next iPhone innovations is also cool, but the impact of meeting the needs of those largely ignored today, is often even greater.

The sOccket inventors also have a talent for publicity, which is always useful for entrepreneurs.

Top Online Graduate Engineering Programs in the USA

Online degree programs are growing quickly in popularity in the USA. Over 6 million students took online courses in 2011. The costs of traditional education continue to rise at extremely high rates – schools have done a horrible job of dealing with this. I personally, don’t understand how they have done so horribly on this measure. Administration costs have exploded. Building vanity projects that costs tens of millions of dollars add little to student achievement and waste limited resources driving up costs.

We really need to find administrators that will reduce administrative staffing levels and costs. Let some schools continue on the ego driven spiraling costs, but let us at least find some who will focus on reducing education costs and providing good education at reasonable costs. For engineering, more than maybe any other discipline, I can excuse some of the costs. But given the universal failure to manage costs I think the failure to manage costs is the primary issue (the extra demands for spending on engineering education, I understand).

The failure to stop the lavish spending has greatly increased the demand for online education. Given the unreasonable cost increases for traditional education many are priced out of considering that option. Given how unable schools have proven to be at providing good education for reasonable rates the last few decades it is reasonable to assume online education will continue to gain popularity. I don’t see the top tier schools facing much competition from online efforts (even if some students are drawn away there are plenty wanting to upgrade their school choice at whatever the cost – as the administrators know as they continue to drive up costs).

One danger is that online education is hardly a proved commodity yet. Both in terms of what you learn and the acceptance and desirability of degrees. So right now students are having to make guesses that are more challenging with online programs than the traditional choices. US News and World Report has selected 3 online engineering master’s programs for the honor roll.

20th Annual US First Robotics Competition

If you have a child, niece, nephew, grandchild… who you haven’t been able to convince about the wonders of science maybe the starts on this promo (Justin Timberlake, Snoop Dogg, Justin Bieber…) can help convince them. If you want to convince your grandparents science is cool, then maybe they will like the cameos by Steven Tyler and Bono 😛 This is an effort being pushed by will.i.am (Black Eyed Peas) and Dean Kamen (US First Founder) to promote science and engineering. Since most politicians don’t seem interested in promoting and supporting science anymore maybe musicians can help turn things around.

I have written about US First, it is a great program. It engages children in learning by taping their curiosity and desire to create. I think learning this way is much more natural and fun and affective than what we have too often in schools today. I know I was bored quite often but was told the adults knew best. Well know I am an adult and I think I was right back then: our education system can, and should be greatly improved. Until then, US First, and similar, programs give kids a good environment for learning that keeps their desire to learn intact.

The video spot was created to promote a TV show commemorating the 20th annual US FIRST Robotics competition. Watch the TV show:

Memory is Stored by Turning on Genes in Neurons (to Alter Connection Between Neurons)

I find these kind of stories so interesting. I really have so little understanding of genes. I knew memory had something to do with altering connections between neurons. I had no idea that required turning on many genes in those neurons. Life really is amazing.

Neuroscientists identify a master controller of memory

When you experience a new event, your brain encodes a memory of it by altering the connections between neurons. This requires turning on many genes in those neurons.
…
Lin and her colleagues found that Npas4 turns on a series of other genes that modify the brain’s internal wiring by adjusting the strength of synapses, or connections between neurons. “This is a gene that can connect from experience to the eventual changing of the circuit,” says [Yingxi] Lin

So far, the researchers have identified only a few of the genes regulated by Npas4, but they suspect there could be hundreds more. Npas4 is a transcription factor, meaning it controls the copying of other genes into messenger RNA — the genetic material that carries protein-building instructions from the nucleus to the rest of the cell. The MIT experiments showed that Npas4 binds to the activation sites of specific genes and directs an enzyme called RNA polymerase II to start copying them.

“Npas4 is providing this instructive signal,” Ramamoorthi says. “It’s telling the polymerase to land at certain genes, and without it, the polymerase doesn’t know where to go. It’s just floating around in the nucleus.”

When the researchers knocked out the gene for Npas4, they found that mice could not remember their fearful conditioning. They also found that this effect could be produced by knocking out the gene just in the CA3 region of the hippocampus. Knocking it out in other parts of the hippocampus, however, had no effect.

One of the things I aim to do in 2012 is read a few more books on biology and genes. I find it incredible what are genes actually are doing to allow us to live our lives. And I am also very ignorant on the whole area. So hopefully I can have some fun next year learning about it.

Brian Cox – Lecture on Science and Quantum Mechanics

Brian Cox gave a wonderful lecture at the Royal Institution of Great Britain. This is one more great thing the internet makes possible: have great fun while you learn. Enjoy.

With the help of Jonathan Ross, Simon Pegg, Sarah Millican and James May, Brian shows how diamonds – the hardest material in nature – are made up of nothingness; how things can be in an infinite number of places at once; why everything we see or touch in the universe exists; and how a diamond in the heart of London is in communication with the largest diamond in the cosmos.