We present industrial results of a quiescent current testing technique suitable for RF testing. The operational method consists of ramping the power supply and of observing the corresponding quiescent current signatures. When the power supply is swept, all transistors are forced into various regions of operation. This has as advantage that the detection of faults is done for multiple supply vol...

Vitamin D (VD) is a fat-soluble steroid essential for life in higher animals. It is technically a pro-hormone present in few food types and produced endogenously in the skin by a photochemical reaction. In recent decades, several studies have suggested that VD contributes to diverse processes extending far beyond mineral homeostasis. The machinery for VD production and its receptor have been re...

The communication problem is a challenge issue for Integrated Circuits (ICs), which usually becomes a bottleneck for performance improvement. Three-dimensional integration (3D), as well as network-on-chip (NoC), are two recent design approaches that promise to alleviate the consequences of interconnection degradation. This paper introduces a new methodology for powerefficient application mappin...

A CMOS/SOI circuit to decode Pulse-Width Modulation (PWM) signals is presented as part of a bodyimplanted neurostimulator for visual prosthesis. Since encoded data is the sole input to the circuit, the decoding technique is based on a novel double-integration concept and does not require low-pass filtering. Non-overlapping control phases are internally derived from the incoming pulses and a fas...

Recent studies, reporting the prevalence of vitamin D deficiency (VDD) worldwide prompted us to assess the vitamin D status in various age groups and gender. Data of 771 subjects, who got their vitamin D levels checked at KMC Hospital, Ambedkar circle, Mangalore, were analyzed. 60% of the subjects were vitamin D deficient while only 20% had sufficient levels. The percentage of subjects with vit...

On chip cache memories contributes a large fraction to the total power consumption of microprocessor. As technology scales down into d e e p -submicron, leakage power is becoming a dominant source of power consumption. As cache memory is an array structure leakage reduction in just one memory cell can on the whole reduce a large amount of leakage power. In this thesis leakage power of conventio...

Recent low-power design utilizes a variety of approaches for Vdd and Vt control to reduce dynamic and leakage power. It is important to be able to explore various low-power design options at a high-level early in the design process. Furthermore, process variation is becoming large and greatly affects the power and delay results. In particular, the delay analysis becomes very complicated and tim...

Single nucleotide polymorphisms (SNPs), R990G and A986S of the calcium sensing receptor (CaSR) gene, are shown to influence response of parathyroid hormone (PTH) in subjects with optimal vitamin D levels. This cross-sectional study was conducted in subjects with vitamin D deficiency (VDD) to observe associations between CaSR polymorphisms, plasma iPTH, and serum calcium levels. Adult females (n...

PURPOSE To examine (1) reproducibility of cycloplegic retinoscopy (C-RNS), cycloplegic autorefraction (C-Autoref), and noncycloplegic autorefraction (NC-Autoref), and (2) validity of C-Autoref and NC-Autoref compared with C-RNS in preschoolers with astigmatism. METHODS Subjects were 36 Native American preschoolers. Three measurements of right eye refractive error were obtained with each of th...