Monday, April 2, 2012
Friday, March 30, 2012
An Interesting Paper
Here is the link:
Novel Attractive Force Between Ions in Quantum Plasmas
by P. K. Shukla and B. Eliasson
Novel Attractive Force Between Ions in Quantum Plasmas
by P. K. Shukla and B. Eliasson
Thursday, March 29, 2012
Neonicotinoids
Save the bee species from extinction.
Assessment of the Environmental Exposure of Honeybees to Particulate Matter Containing Neonicotinoid Insecticides Coming from Corn Coated Seeds
Andrea Tapparo*†, Daniele Marton†, Chiara Giorio†, Alessandro Zanella†, Lidia Soldà†, Matteo Marzaro‡, Linda Vivan‡, and Vincenzo Girolami‡
† Dipartimento di Scienze Chimiche, Università degli Studi di Padova, via Marzolo 1, 35131, Padova, Italy
‡ Dipartimento di Agronomia Animali Alimenti Risorse Naturali e Ambiente, Università degli Studi di Padova, Agripolis, viale dell’Università 16, 35020 Legnaro, Padova, Italy
Environ. Sci. Technol., 2012, 46 (5), pp 2592–2599
DOI: 10.1021/es2035152
Publication Date (Web): January 31, 2012
Copyright © 2012 American Chemical Society
*E-mail: andrea.tapparo@unipd.it.
Abstract
Since seed coating with neonicotinoid insecticides was introduced in the late 1990s, European beekeepers have reported severe colony losses in the period of corn sowing (spring). As a consequence, seed-coating neonicotinoid insecticides that are used worldwide on corn crops have been blamed for honeybee decline. In view of the currently increasing crop production, and also of corn as a renewable energy source, the correct use of these insecticides within sustainable agriculture is a cause of concern. In this paper, a probable—but so far underestimated—route of environmental exposure of honeybees to and intoxication with neonicotinoid insecticides, namely, the atmospheric emission of particulate matter containing the insecticide by drilling machines, has been quantitatively studied. Using optimized analytical procedures, quantitative measurements of both the emitted particulate and the consequent direct contamination of single bees approaching the drilling machine during the foraging activity have been determined. Experimental results show that the environmental release of particles containing neonicotinoids can produce high exposure levels for bees, with lethal effects compatible with colony losses phenomena observed by beekeepers.
Another Report on Bee Colony Extiction
Another Report on Bee Colony Extiction
Tuesday, March 27, 2012
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Friday, March 23, 2012
Broadcast Power
Broadcast power is said to depend upon the development of ultrafast diodes.
J. Appl. Phys. 108, 084316 (2010); http://dx.doi.org/10.1063/1.3501051 (3 pages)
Graphene-based ultrafast diode
D. Dragoman1, M. Dragoman2, and R. Plana3
1Department of Physics, University of Bucharest, P.O. Box MG-11, 077125 Bucharest, Romania
2National Research and Development Institute in Microtechnology, Str. Erou Iancu Nicolae 32B, 077190 Bucharest, Romania
3LAAS CNRS, 7 Avenue du Colonel Roche, 31077 Toulouse Cedex 4, France
View Map2National Research and Development Institute in Microtechnology, Str. Erou Iancu Nicolae 32B, 077190 Bucharest, Romania
3LAAS CNRS, 7 Avenue du Colonel Roche, 31077 Toulouse Cedex 4, France
(Received 27 July 2010; accepted 9 September 2010; published online 27 October 2010)
We present a graphene-based ballistic diode, which is able to rectify an incident signal due to an oblique gate positioned between the two terminals of the device. The operating point of the diode can be controlled by the applied gate voltage, whereas the current-voltage dependence of the device can be changed by varying the inclination angle of the gate. In particular, the ideality factor of the graphene-based diode can take values higher or lower than 1 by modifying this inclination angle. The rectifying properties of the graphene diode are thus tunable, in deep contrast with semiconductor-based diodes.
© 2010 American Institute of PhysicsArticle Outline
- INTRODUCTION
- SCHOTTKY-LIKE DIODE ON GRAPHENE
- CONCLUSION
Wednesday, March 21, 2012
Food Ingredients
This is my personal list of substances to try to avoid. You would think someone would have learned to at least try to keep heavy metals out of the food supply.
Food ingredients to minimize:
· Arsenic (linked to stomach cancer)
· Cadmium (linked to breast cancer)
· Lead (Brain damage)
· Excessive levels of Phosphates (linked to lung cancer)
Artificial colors
Artificial sweeteners like aspartame and saccharin
Acesulfame-K (acesulfame potassium)
Ammonium chloride
Azodicarbonamide
Benzoates
BHA and BHT (butylated hydroxyanisole and butylated hydroxytoluene)
Brominated vegetable oil
Calcium saccharin
Calcium stearoyl-2-lactylate
Cyclamates
Dimethylpolysiloxane
Ethylene oxide
Ethoxyquin
High fructose corn syrup
Hydrogenated fats
Methyl silicon
Monosodium glutamate (MSG)
Nitrates/nitrites
Partially hydrogenated oil
Polydextrose
Potassium benzoate
Propylparaben
Sodium sulfite
Sulfites (sulfur dioxide)
TBHQ (tertiary butylhydroquinone)
Tetrasodium EDTA
Food ingredients to minimize:
· Arsenic (linked to stomach cancer)
· Cadmium (linked to breast cancer)
· Lead (Brain damage)
· Excessive levels of Phosphates (linked to lung cancer)
Tuesday, March 20, 2012
Opel's GaAs Poet Technology 100 GHz Clock Speed
The Planar Optoelectronic Technology (POET) semiconductor platform was developed by OPEL Defense Integrated Systems (ODIS Inc) of Shelton, CT. It is a unique and patented Group III-V materials system that supports monolithic fabrication of ICs containing active and passive optical elements, together with high-performance analog and digital elements. An economical integration of many optical devices together with dense, high-speed analog and high-speed, low-power digital elements are possible in monolithic ICs.
I got to see the IBM demonstration of how their tracking
system works. It can monitor the doctor
to make sure he washes his hands for the minimum require amount of time before
he touches a patient, the location of a patient, whether he falls, etc. It
seems like a lawyer’s agenda to deal with civil law suits. The Goths in their legal system had a more direct way of dealing with the excessively litigious nature of their society.
Nasa Biocapsule Implants
Siemen’s Implants
IBM’s Implant
Monday, March 19, 2012
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