About: Ibrar Ayyub

It took seven editors and 26 authors nine years to compile the first ever Reptile Atlas for all reptiles found in the southern tip of Africa. This huge collaborative effort resulted in the 485-page Atlas and Red List of the Reptiles of South Africa, Lesotho and Swaziland – a hardcover book launched recently that also contains the conservation status of the 421 recognised species and subspecies of reptiles found in these three countries.

Scientists at Tsinghua University, China, and Nanyang Technological University, Singapore, have designed an intrinsic-disperse nanocarbon architecture hybridizing N-doped graphene and SWCNTs, which can serve as a superior bifunctional electrocatalyst for both oxygen reduction and evolution reactions.

Analog-to-digital-conversion (ADC) is required in Embedded Systems to deal with various analog world parameters such as current, pressure, motion, temperature, etc. An ADC is an electronic system or a module that has analog input, reference voltage input and digital outputs. The ADC convert the analog input signal to a digital output value that represents the size of […]

Having obtained a reasonably reliable 10MHz lab reference (see here) I decided to calibrate my Frequency Counter only to find that the stock oscillator provided in the HP 53151A is absolutely terrible – a joke even! I looked around for an “010 High Stability Timebase Option” but they are rare — and if you can […]

500, 400, 300 mW are common values of coils power consumption of mid-power relays. But JV-xS settles for 200mW and operates even at 113 mW! Power consumption of for example 500 mW is low at the first sight and it may seem, that at a power consumption of other power circuitry it somehow “disappears”. Sometimes […]

An international team of researchers comprised of Thomas Wesener, Museum Koenig, Bonn, Daniel Le, Field Museum, Chicago and Stephanie Loria, American Museum of Natural History, New York, discovered seven new species of chirping giant pill-millipedes on Madagascar. The study was published in the open access journal ZooKeys.

Editor’s note: The following is a Sand 9 white paper discussing the evolution of MEMS technology in our industry as it relates to timing devices. Quartz has dominated the industry until recently. Electrostatic and piezoelectric MEMS now seriously compete to displace quartz in many applications with improved overall tolerance across all frequencies. PSRR in a […]

The transport routes of nutrients and messenger cargos can be compared to the traffic system of a city: A worldwide unique quantitative study of cell biologists of the University of Zurich shows that cells regulate the main routes, side routes and intersections by an intricate traffic control system, which guides the spatial and temporal distribution of substances within the cell.

We’re thrilled with the amount of support we’ve received. Now that we’ve reached our campaign funding goal we have some exciting new goals in mind. If we are able to hit a new funding target of $150,000 we will add a dual DC motor (or single stepper motor) driver shield to our offerings. Great for […]

Nix is a patent pending device that allows anyone to become a color expert. Just grab Nix from your pocket, purse, or bag, touch it to an object and magically watch the exact color appear on your iPhone, Android, PC, or Mac. Once scanned, you can keep palettes of your favorite colors, match the color […]