Be aware that technical difficulties may happen, so apologies in advance if they happen.
UPDATE: The show has been extended.
*If we have lots of callers, I'll try to figure out how to extend the show. New software, not quite sure how to proceed.
1. HELPING CHEMISTS FIND JOBS IN A TOUGH MARKET. 2. TOWARDS A QUANTITATIVE UNDERSTANDING OF THE QUALITY OF THE CHEMISTRY JOB MARKET.
|Refrigerator art, old refrigerator magnets|
The properties of product from pilot drying equipment may be significantly different from that of product dried in laboratory vacuum tray dryers. This is particularly true of units that agitate the cake mechanically such as orbiting screw conical dryers. Particle attrition or agglomeration can result in major differences in particle size distribution, bulk density, compaction and flowability. These things in turn affect solubility, bioavailability, formulation, processing, packing and shipping. Therefore, it is not valid to base projected product properties on the results of tray-dried samples when different equipment will be used on scale-up.
The behavior of a given product in different dryer types cannot be easily predicted. Bench or small pilot-sized test units are available for tumble or paddle dryers, but the dynamic similarity to large-scale equipment is poor.
The best way to determine what the product will look like is by performing pilot studies in representative drying equipment. Sometimes the actual product characteristics will not be known until the first production batch comes out in the dryer.Just in case you thought you could predict the future in this sense, you cannot. Gosh, it is remarkable to me how much is not known in this business.
Advanced Assistant Professor or Associate Professor, Applied Science
The candidate is expected to establish and maintain an externally funded, world-class research program that inspires a highly motivated graduate student body as well as undergraduate students. Collaborations with existing departmental activities in the fields of photon-based/ultrafast characterization, carbon nanostructures, protein-based high-performance materials, electronic and magnetic materials, medical imaging, and surface and thin film characterization are expected. Other significant collaboration opportunities are available with the Thomas Jefferson National Accelerator Facility, Eastern Virginia Medical School and NASA Langley Research Center. William & Mary also has a strong tradition of excellent teaching at the graduate and undergraduate levels, and the successful candidate will play an important role in the educational mission of the Department of Applied Science.
The successful applicant will have full access to a state-of-the-art solid-state NMR facility, which currently has only one other user. The position comes with five years of support at the 100% level for a technician to maintain the NMR equipment who will report to the successful candidate. The NMR facility houses two Bruker wide bore superconducting magnets operating at field strengths of 17.6 T and 7.05 T, each controlled by Bruker AVANCE I high power consoles optimized for solid state experiments, along with several probes capable of temperature controlled (−100 °C to +100 °C) magic angle spinning experiments. Additional shared instrumentation include a PHI Trift-II ToF/SIMS, and a Hitachi S-4700 SEM, as well as a vast array of other characterization instruments. The startup for the position will be competitive.Best wishes to those interested.
...Two years before in Ras al-Ain, another Syrian border town, Abu Omar said, he was with a group of Islamic fighters that organized a test with 3.5 grams of liquid red mercury and a container of chlorine. The experiment was led by Abu Suleiman al-Kurdi, who commanded a small fighting group that has since joined the Islamic State. Al-Kurdi gathered the jihadists around his materials as the test began. ‘‘I will count to 10, and whoever stays in the room after that suffocates and dies,’’ he warned.
The chlorine was held in a foil-lined container, Abu Omar said. As the group watched, al-Kurdi dipped a needle into the red mercury and then touched the needle to the chlorine, transferring a drop. ‘‘Everything interacted with everything,’’ Abu Omar said, and a foul vapor rose. All of the fighters were driven away, first from the room, then from the house.
The powers of red mercury, Abu Omar said, were real.
Almost every aspect of this story, like so many other breathless accounts of red mercury, was unverifiable. And even if something did happen in that room, the noxious vapors could have a simple explanation: Chlorine alone damages the respiratory tract and can be deadly if inhaled.
But Abu Omar had answered the question. He stood firmly in the red-mercury camp. He was hardly alone...Gonna hafta start blaming deviations in the plant on unknown red mercury leaks.
What's the job market like for chemists? Dude -- it's always bad.*
How bad is it? How the heck should I know? Quantifying the chemistry job market is what this blog is about. That, and helping chemists find jobs.
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(*For the literal-minded, this is a joke. Mostly.)