For Kotlin Developers: BLE Scan Returning 0 Results on Android 12+: Fixing Permissions and ScanFilters to Find Devices

If your Android app's BLE scan is returning 0 results without any errors, the first thing to suspect is not the device, but the permissions and scan conditions that changed in Android 12 (API 31).In ...
Science Daily

Scientific method

Scientific method is a body of techniques for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge. It is based on gathering observable, empirical and ...
US Environmental Protection Agency

Approved CWA Chemical Test Methods

300.0 Inorganic Anions by Ion Chromatography. Revision 2.1 300.1 Inorganic Anions in Drinking Water by Ion Chromatography. Revision 1.0 310.2 Alkalinity, Colorimetric, Automated Methyl Orange 335.4 ...
US Environmental Protection Agency

SW-846 Test Method 8270E: Semivolatile Organic Compounds by Gas Chromatography/Mass Spectrometry (GC/MS)

Hazardous Waste test method SW-846 Method 8270E Final Response to Comments Update VI Methods 8260D and 8270E (pdf) (266.85 KB, 2018) Response to comments on hazardous waste test methods VI Methods ...
Nature

Machine learning articles from across Nature Portfolio

Machine learning is the ability of a machine to improve its performance based on previous results. Machine learning methods enable computers to learn without being explicitly programmed and have ...