FAN7340 is a single-channel boost controller that integrates an N-channel dimming MOSFET using Fairchild’s proprietary planar DMOS technology. The IC operates as a constant-current source for driving high-current LEDs. FAN7340 uses a current-mode control with programmable slope compensation to prevent sub-harmonic oscillation and provides protections such as Open-LED Protection (OLP) and Over-V...

For many years, Electronic System Level (ESL) design and verification has been on the cusp of widespread adoption, but never seems to get there. Universities and companies claim to have the necessary breakthrough only to see the technology sit there for years or the company to hobble along without ever really becoming a success. Is this because ESL is failing to deliver on the promises or that ...

The occurrence of resistance in Varroa mite populations is a serious threat to the beekeeping industry and to crops that rely on the honey bee for pollination. Integrated pest management strategies for control of this pest include the judicious use of insecticides. To monitor field populations of Varroa mite for insecticide resistance, a glass vial bioassay procedure was developed to use in the...

Wetterhahn knew about the high toxicity of dimethylmercury and took very reasonable precautions, donning safety glasses and latex gloves, doing manipulations in a fume cupboard and only working with very small quantities behind the fume cupboard sash. Dimethylmercury, supplied by a chemical manufacturer, came in a sealed glass vial. A colleague of hers cooled the vial in ice-water to reduce the...

Both sexes of the noctuid moths Lacanobia subjuncta (Grote & Robinson), Mamestra configurata Walker (bertha armyworm) and Xestia c-nigrum (L.) (spotted cutworm) are attracted to the combination of acetic acid and 3-methyl-1-butanol (isoamyl alcohol). A controlled-release system for use of this attractant in traps was comprised of separate polypropylene vials for each chemical, with the chemical...

A one-vial formulation of the chemotherapy agent Taxotere(®) (docetaxel) is likely to be commercially available in some countries in 2010. Through control of two significant potential risk factors for crystallization-intervention into the infusion bag (by using a one-step technique) and temperature (by use of refrigerated storage)-it was postulated that the risk of precipitation would be reduce...

BACKGROUND The use of mixed or blended protocols, that utilize both FSH and hMG, for controlled ovarian hyperstimulation is increasing in use. To reduce the number of injections a patient must administer, many physicians instruct their patients to mix their FSH and hMG together to be given as a single injection. Therefore, the goal of this study was to definitively determine if the FSH and LH b...

OBJECTIVE The aims of this study were to quantify the extent of volatilization from 131I-NaI therapeutic capsules prepared in a centralized radiopharmacy and to quantify the amount of volatile 131I released from a dispensing vial containing a compounded 131I-NaI therapy capsule. METHODS Therapy capsules were prepared by injecting 131I oral solution into capsules containing anhydrous dibasic s...