Wavelet design by means of multi-objective GAs for motor imagery EEG analysis

Wavelet-based analysis has been broadly used in the study of brain-computer interfaces (BCI), but in most cases these wavelet functions have not been designed taking into account the requirements of this field. In this study we propose a method to automatically generate wavelet-like functions by means of genetic algorithms. Results strongly indicate that it is possible to generate (evolve) wavelet functions that improve the classification accuracy compared to other well-known wavelets (e.g. Daubechies and Coiflets)

EVALUATING NATURE-BASED TOURISM USING THE NEW ENVIRONMENTAL PARADIGM

Nature-based tourism (NBT), alternatively known as ecotourism, is a rapidly expanding area in the tourism travel sector. States such as Louisiana with a well established urban-based tourism industry may have expansion opportunities through development of complementary nature-based tourism. This study analyzes the decision to participate in NBT among Louisiana tourists.Nature tourism, Ecotourism, NEP, Resource /Energy Economics and Policy,

QUALITY AS A LATENT VARIABLE IN RECREATION ACCESS ANALYSIS

Recreation trends indicating an increasing demand for quality recreation experiences suggest the need for special consideration of quality in analysis of fee access recreation. By viewing quality as a subjective latent variable, this paper uses a simultaneous equation framework to consider the use of subjective versus objective appraisals of quality in fee-based recreation access analysis.Resource /Energy Economics and Policy,

An optimal exposure strategy for cryoprotected virus crystals with lattice constants greater than 1000 Å

Many supramolecular complexes form crystals that have lattice constants of the order of 1000 Å. An optimized method for data collection and processing is described

Microarray-based ultra-high resolution discovery of genomic deletion mutations

BACKGROUND: Oligonucleotide microarray-based comparative genomic hybridization (CGH) offers an attractive possible route for the rapid and cost-effective genome-wide discovery of deletion mutations. CGH typically involves comparison of the hybridization intensities of genomic DNA samples with microarray chip representations of entire genomes, and has widespread potential application in experimental research and medical diagnostics. However, the power to detect small deletions is low. RESULTS: Here we use a graduated series of Arabidopsis thaliana genomic deletion mutations (of sizes ranging from 4 bp to ~5 kb) to optimize CGH-based genomic deletion detection. We show that the power to detect smaller deletions (4, 28 and 104 bp) depends upon oligonucleotide density (essentially the number of genome-representative oligonucleotides on the microarray chip), and determine the oligonucleotide spacings necessary to guarantee detection of deletions of specified size. CONCLUSIONS: Our findings will enhance a wide range of research and clinical applications, and in particular will aid in the discovery of genomic deletions in the absence of a priori knowledge of their existence

An Economic Analysis of Waterfowl Hunting in Louisiana (Bulletin #841)

Waterfowl-related activities generate millions of dollars for Louisiana’s economy annually, with duck and goose hunting as one of the most significant sporting activities. Economic information on the characteristics that influence the decision to hunt waterfowl can provide valuable information to resource managers faced with declining waterfowl populations as well as declining numbers of waterfowl hunters.https://digitalcommons.lsu.edu/agcenter_bulletins/1017/thumbnail.jp

Hedonic analysis of waterfowl hunting lease attributes : an evaluation of owner-provided services

The role of owner-provided services in fee-based recreation access is evaluated for the case of waterfowl hunting. An hedonic framework is used to analyze and estimate the implicit price of some waterfowl hunting lease attributes. A mail survey of Louisiana waterfowl hunters provides primary data for estimation of the hedonic price model specified in semi-log functional form. The willingness-to-pay functions for increased acreage per hunting club member, increased lease time, and travel distance are also empirically estimated, providing information on the implicit demand for these lease characteristics