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Adaptation of parameters and operators represents one of the recent most important and promising areas of research in evolutionary computations; it is a form of designing self-configuring algorithms that acclimatize to suit the problem in hand. Here, our interests are on a recent breed of hybrid evolutionary algorithms typically known as adaptive memetic(More)
The occurrence of errors are inevitable in modern VLSI technology and to overcome all possible errors is an expensive task. It not only consumes a lot of power but degrades the speed performance. By adopting an emerging concept in VLSI design and test—Error- Tolerance (ET), we managed to develop a novel Error-Tolerant Adder which we named the Type II(More)
In conventional digital VLSI design, one usually assumes that a usable circuit/system should always provide definite and accurate results. But in fact, such perfect operations are seldom needed in our non digital worldly experiences. The world accepts “analog computation,” which generates “good enough” results rather than totally accurate results [1]. The(More)
We study the trading of individual investors using transaction data and identifying buyeror seller-initiated trades. We document four results: (1) Small trade order imbalance correlates well with order imbalance based on trades from retail brokers. (2) Individual investors herd. (3) When measured annually, small trade order imbalance forecasts future(More)
This study shows that U.S. individual investors hold under-diversified portfolios, where the level of under-diversification is greater among younger, low-income, less-educated, and lesssophisticated investors. The level of under-diversification is also correlated with investment choices that are consistent with over-confidence, trend-following behavior, and(More)
Neuregulin-1 (NRG1) plays a crucial role in axoglial signaling during the development of the peripheral nervous system, but its importance in adulthood after peripheral nerve injury remains unclear. We used single-neuron labeling with inducible Cre-mediated knock-out animals, which enabled visualization of a subset of adult myelinated sensory and(More)
After analyzing retail investors’ stock trades for potential learning behavior, we present evidence that individual investors learn from their trading experience. Initially, we question whether investors’ previous forecasting ability (inferred from prior purchases’ subsequent risk-adjusted performance) affects their future trade profitability and activity.(More)
Following peripheral nerve injury microglia accumulate within the spinal cord and adopt a proinflammatory phenotype a process which contributes to the development of neuropathic pain. We have recently shown that neuregulin-1, a growth factor released following nerve injury, activates erbB 2, 3, and 4 receptors on microglia and stimulates proliferation,(More)