Posts

November 18, 2014

+
9:56 AM | Nanotechnology in the 'green' economy - opportunities and risks
A new review article examines opportunities and practical challenges that nanotechnology applications pose in addressing the guiding principles for a green economy. There is a general perception that nanotechnologies will have a significant impact on developing 'green' and 'clean' technologies with considerable environmental benefits. The associated concept of green nanotechnology aims to exploit nanotech-enabled innovations in materials science and engineering to generate products and […]
+
9:09 AM | Educational Videos Describe Thermal Microscopy and Associated Applications
Linkam Scientific Instruments has launched their first educational videos to help introduce users to some of the new thermal microscopy techniques and associated testing methods.
+
8:34 AM | New nanocomposites for aerospace and automotive industries
Researchers have developed reinforced graphite nanoplatelets seeking to improve the performance of solar cell materials.
+
1:21 AM | Molecular modeling and physics: A tale of two disciplines
For its development physics relies both on time for understanding and on multiple other disciplines that make tools like the LHC possible (Image: Universe Today)In my professional field of molecular modeling and drug discovery I often feel like an explorer who has arrived on the shores of a new continent with a very sketchy map in his pocket. There are untold wonders to be seen on the continent and the map certainly points to a productive direction in which to proceed, but the explorer […]

November 17, 2014

+
10:26 PM | Thank you Jacob Bronowski for the inspiration [Vídeo]
Más info: El ascenso de Jacob Bronowski
+
9:36 PM | Billions of nanoreactors inform materials design
Imagine building a chemical reactor small enough to study nanoparticles a billionth of a meter across. A billion times smaller than a raindrop is the volume of an E. coli cell. And another million times smaller would be a reactor small enough to study isolated nanoparticles. Add to that the challenge of making not just one of these tiny reactors, but billions of them, all identical in size and shape. Researchers at Cornell have done just that.
+
8:59 PM | Well, the e-mails and the ads worked: Donna Nelson is your 2015 ACS President-Elect
Via Twitter:Donna J. Nelson is the 2015 @AmerChemSociety president-elect.  Full story coming soon.I thought it was interesting that this was the first year that 1) one of the candidates (Professor Nelson) sent e-mail blasts to vote for her and 2) both she and Professor Dorhout ran ads in print editions of C&EN.I am a little bit concerned that this will usher in a new wave of spam into our inboxes...
+
8:59 PM | This week's C&EN
A quieter week this week:This letter about PPE and the Minnesota TMS-azide incident sort of states the obvious. That said, even w/PPE and a blast shield, at 200 grams, there's still a likelihood the graduate student goes to the hospital and the hood is trashed. I'm excited to hear about this Jeff Johnson story about a carbon dioxide-trapping pilot apparatus at a cement plant -- seems to me that, if a carbon tax were enacted, this would be an obvious place to go. Will be […]
+
7:24 PM | Graphene-nanotube hybrid benefits flexible solar cells
Scientists have invented a novel cathode that may make cheap, flexible dye-sensitized solar cells practical.
+
5:20 PM | Researchers synthesize new form of silicon for solar applications
Silicon is the second most-abundant element in the earth's crust. When purified, it takes on a diamond structure, which is essential to modern electronic devices - carbon is to biology as silicon is to technology. A team of scientists has synthesized an entirely new form of silicon, one that promises even greater future applications.
+
5:09 PM | New technique to help produce next generation photonic chips
Researchers have developed a new technique to help produce more reliable and robust next generation photonic chips.
+
5:05 PM | Researchers create and control spin waves, lifting prospects for enhanced info processing
A team of physicists has developed a method to control the movements occurring within magnetic materials, which are used to store and carry information. The breakthrough could simultaneously bolster information processing while reducing the energy necessary to do so.
+
5:01 PM | Case Reports of Synthetic Cannabinoid-Related Deaths
Several case reports of synthetic cannabinoid-related presentations to the emergency department in clinical toxicology have been published, but more often than not (for valid and invalid reasons), analytical confirmation of drug in the blood is not even attempted. In postmortem toxicology, these reports are exceedingly rare as only few case reports have been published surrounding circumstances of death. There have been three case report papers published in 2013-2014 describing synthetic […]
+
4:33 PM | Unemployed and looking for a job
Short and sweet: I am looking for employment. My previous employer, an unnamed Minnesota-based mining and manufacturing company gave me a severance package (pretty small compared to what I got 13 years ago when I was also let go from them, but times change). And so I am looking for a job in the Twin Cities area, particularly on the east side and into western-most Wisconsin. Advice and leads are nice, but names of hiring managers are solid gold.I also am available as an expert witness. I was one […]
+
10:09 AM | Researchers discern the shapes of high-order Brownian motions
For the first time, scientists have vividly mapped the shapes and textures of high-order modes of Brownian motions - in this case, the collective macroscopic movement of molecules in microdisk resonators.
+
8:46 AM | Printing complex electronic circuits using a common t-shirt printer
Resistors, transistors and capacitors, the key components of a complex electronic circuit, are printed using non-toxic organic materials like silver nanoparticles, carbon and plastics.

November 16, 2014

+
1:45 PM | Programming in the Life Sciences #20: extracting data from JSON
I previously wrote about the JavaScript Object Notation (JSON) which has become a de facto standard for sharing data by web services. I personally still prefer something using the Resource Description Framework (RDF) because of its clear link to ontologies, but perhaps JSON-LD combines the best of both worlds.The Open PHACTS API support various formats and this JSON is the default format used by the ops.js library. However, the amount of information returned by the Open PHACTS cache is complex, […]
+
12:52 PM | Programming in the Life Sciences #19: debugging
Debugging is the process find removing a fault in your code (the etymology goes further back than the moth story, I learned today). Being able to debug is an essential programming skill, and being able to program flawlessly is not enough; the bug can be outside your own code. (... there is much that can be written up about module interactions, APIs, documentation, etc, that lead to malfunctioning code ...)While there are full debugging tools, achieving the task of finding where the bug is can […]
+
11:28 AM | This Week in Chemistry – The Smell of Blood, & Ebola Treatment Trials
  Here’s another edition of the ‘This Week in Chemistry’ feature, providing updates on the latest chemical research, as well as summarising the chemistry stories that have made the news in the past week. The past seven days have seen the chemical behind the metallic odour that lures carnivores to blood identified, as well as […]
+
10:53 AM | Programming in the Life Sciences #18: Molecular weight distribution of compounds with measured activities against a target (and other examples)
Eating your own dog food is an rather useful concept in anything where a solution or product can change over time. This applies to science as much as programming. Even when we think things are static, they may not really be. This is often because we underestimate or are just ignorant against factors that influence the outcome. By repeatedly dogfooding, the expert will immediately recognize the effect of different influencing factors.Examples? A politician that actually lives in a neighborhood […]
+
6:40 AM | DuPont methanethiol leak results in 4 deaths in LaPorte, TX plant
Via the New York Times: Four Texas workers died and a fifth was hospitalized Saturday morning after a hazardous gas leak at a DuPont chemical plant east of Houston. The workers were overcome about 4 a.m. Central Standard Time, apparently as they were responding to the leak of the gas, methyl mercaptan, according to the plant’s manager, Randall Clements. Methyl mercaptan is mixed with odorless natural gas to give it its characteristic rotten-egg smell. The company said […]

November 15, 2014

+
11:49 PM | Falsification and chemistry: What’s the rub?
Roald Hoffmann has often emphasized the limitationsof falsification for the everyday practice of chemistryMy last post on the role and limitations of falsification leads to a point I have made before: the fact that falsification is far less important for chemists than it is for, say, physicists or mathematicians. My take on the relative unimportance of falsification comes mainly from Roald Hoffmann who is as much of a philosopher of chemistry (and a poet) as a professional Nobel Prize […]
+
10:53 AM | Science is not just a theory
I say theory, he says theory but what do you think we mean when we talk about theories, like Big Bang theory, the theory of evolution by natural selection, the theory of relativity (both general and special) and quantum theory. Well, we don’t mean it’s “just” a theory, like some vague idea a bloke down […]Science is not just a theory is a post from the science blog of science journalist, photographer and musician David Bradley Subscribe to our Email […]
+
9:17 AM | Put them on hold
Songs of Experience by Dave Bradley It’s a quarter of a century since the fall of the Berlin Wall, but still lives are put on hold by those who will divide and subjugate us. Isn’t it time, once again, to reject their calls, put them on hold? Put them on hold I made the call […]Put them on hold is a post from the science blog of science journalist, photographer and musician David Bradley Subscribe to our Email Newsletter
+
2:54 AM | Falsification and its discontents
Karl Popper's grounding in the age of physics colored his views regarding the way science is done. Falsification was one of the resulting casualties (Image: Wikipedia Commons)Earlier this year the 'Big Questions' website Edge.org’s asked the following question: “What scientific idea is ready for retirement”? In response to the question physicist Sean Carroll. Carroll takes on an idea from the philosophy of science that’s usually considered a […]

November 14, 2014

+
5:59 PM | Fun card game, I'll bet
From Carney, J.M. "Retrosynthetic Rummy: A Synthetic Organic Chemistry Card Game." [1]Here's a fun idea for a card game: "Retrosynthetic Rummy" [1]:ABSTRACT: A deck of cards and a card game have been developed in an effort to make practicing organic chemistry and synthesis more fun for students. The game is played as a variation of rummy, in which players collect sets of similar cards and runs of cards in a synthetic sequence. This card game reviews knowledge of functional groups […]
+
4:50 PM | Warping in topological insulators
Topological insulators are promising to develop into a material for lossless electricity and information transport. Now, researchers investigated for the first time whether the direction of motion of electrons in topological insulators affects their behavior.
+
4:42 PM | Is Dow Chemical going to have a proxy fight?
Every time I keep thinking that Dow Chemical may have finally been able to tell activist investor Daniel Loeb to take a hike, he keeps coming back. What a glutton for punishment.Loeb's latest effort is this flashy website which makes yet another logically inconsistent attempt to acheive changes that he desires at Dow. This website is designed to inform stockholders of his opinions and push for a proxy fight to get two of his handpicked directors on the board.I'm guessing that Loeb hopes that […]
+
4:26 PM | Testing travails for shale crude on rail
I have been following the shale oil on rail story a little. I don't know why, but I find it (and the Wall Street Journal's coverage of it very interesting), especially since it hinges on accurate chemical testing: Regulators set to decide on crude-by-rail shipping rules are relying on testing methods that may understate the explosive risk of the crude, according to a growing chorus of industry and Canadian officials. The tests’ accuracy is central to addressing the safety of […]
+
12:27 PM | Three-dimensional microtechnology with Origami folding art
A new technique can form the basis for a new three-dimensional production technique that avoids the limitations of the current two-dimensional microtechnology.
123456789
436 Results