We describe a floating-gate trimmed, 14-bit, 250Ms/s current-steered DAC fabricated in a 0.25μm CMOS logic process. We trim the static INL to ±0.3LSB using analog charge stored on floating-gate pFETs. The DAC occupies 0.44mm of die area, consumes 53mW at 250MHz, allows on-chip electrical trimming, and achieves 72dB SFDR at 250Ms/s. Introduction Emerging standards for communications systems requ...

Under some mild assumptions, we study the state complexity of the trim minimal automaton accepting the greedy representations of the multiples of m ≥ 2 for a wide class of linear numeration systems. As an example, the number of states of the trim minimal automaton accepting the greedy representations of mN in the Fibonacci system is exactly 2m.

Fifty foodservice purveying companies were sampled in 12 U.S. cities evenly distributed across six geographical regions. Beef whole muscle cuts (WMC) and portion control items (PCI) from the primal rib and loin were evaluated for surface fat levels. Fat thicknesses were measured on WMC before and after fabrication, whereas additional PCI were measured for fat trim levels before distribution. Th...

Deploying solid state drives (SSDs) in RAID configurations can leverage the performance of persistent storage systems into a new dimension. However, the Achilles’ heel of SSDs and, therefore, also SSD RAIDs is their write performance, especially for small random requests. To prevent a degradation of the write throughput, it is important to maintain an adequate amount of free flash capacity. Thi...

OBJECTIVE To determine whether a shoe with an axialcontoured lateral branch would induce greater lateral roll of the forelimb hoof during the time between heel and toe lift-off at end of the stance phase (breakover). Animals-10 adult horses. PROCEDURE A gyroscopic transducer was placed on the hoof of the right forelimb and connected to a transmitter. Data on hoof angular velocity were collect...

Thymic selection is a tightly regulated developmental process essential for establishing central tolerance. The intensity of TCR-mediated signaling is a key factor for determining cell fate in the thymus. It is widely accepted that low-intensity signals result in positive selection, whereas high-intensity signals induce negative selection. Transmembrane adaptor proteins have been demonstrated t...

The molecular mechanisms regulating recruitment of intracellular signaling proteins like growth factor receptor-bound protein 2 (Grb2), phospholipase Cgamma1, or phosphatidylinositol 3-kinase (PI3-kinase) to the plasma membrane after stimulation of the T cell receptor (TCR)- CD3-zeta complex are not very well understood. We describe here purification, tandem mass spectrometry sequencing, molecu...

PURPOSE Diabetes is a debilitating illness requiring lifelong management. Treatments can be varied in terms of mode of administration as well as type of agent. Unfortunately, most patient reported outcome measures currently available to assess the impact of treatment are specific to diabetes type, treatment modality or delivery systems and are designed to be either a HRQoL or treatment satisfac...