Alcohol Excise Taxes and their Effects on the Community

Objectives: This study examines the association of an additional excise tax on alcoholic beverages in Georgetown, Kentucky with alcohol-related motor vehicle accidents. Evaluate the additional benefits of the excise tax on the community of Georgetown, Kentucky. Methods: Using an interrupted time series design, this study compares alcohol-related crash statistics from two similar cities based on 126 months of data from the Kentucky State Police. Analyses included linear regression and Poisson models to evaluate the data in each city to determine population-wide results. Results: Alcohol-related motor vehicle crashes immediately declined (-12.5%) in Georgetown following the implementation of the excise tax and remained below the previous rates for the remainder of the study. Excise taxes on alcohol produced revenue that can be used in a variety of ways to improve the community. Conclusions: An increase in alcohol taxes was associated with reduced mortality and could provide greater financial opportunities for cities across the Commonwealth of Kentucky

Treatment of Alkaline Cr(VI)-Contaminated Leachate with an Alkaliphilic Metal-Reducing Bacterium

Chromium in its toxic Cr(VI) valence state is a common contaminant particularly associated with alkaline environments. A well-publicized case of this occurred in Glasgow, United Kingdom, where poorly controlled disposal of a cementitious industrial by-product, chromite ore processing residue (COPR), has resulted in extensive contamination by Cr(VI)-contaminated alkaline leachates. In the search for viable bioremediation treatments for Cr(VI), a variety of bacteria that are capable of reduction of the toxic and highly soluble Cr(VI) to the relatively nontoxic and less mobile Cr(III) oxidation state, predominantly under circumneutral pH conditions, have been isolated. Recently, however, alkaliphilic bacteria that have the potential to reduce Cr(VI) under alkaline conditions have been identified. This study focuses on the application of a metal-reducing bacterium to the remediation of alkaline Cr(VI)-contaminated leachates from COPR. This bacterium, belonging to the Halomonas genus, was found to exhibit growth concomitant to Cr(VI) reduction under alkaline conditions (pH 10). Bacterial cells were able to rapidly remove high concentrations of aqueous Cr(VI) (2.5 mM) under anaerobic conditions, up to a starting pH of 11. Cr(VI) reduction rates were controlled by pH, with slower removal observed at pH 11, compared to pH 10, while no removal was observed at pH 12. The reduction of aqueous Cr(VI) resulted in the precipitation of Cr(III) biominerals, which were characterized using transmission electron microscopy and energy-dispersive X-ray analysis (TEM-EDX) and X-ray photoelectron spectroscopy (XPS). The effectiveness of this haloalkaliphilic bacterium for Cr(VI) reduction at high pH suggests potential for its use as an in situ treatment of COPR and other alkaline Cr(VI)-contaminated environments

Physical Activity Behavior in Persons with Parkinson’s Disease

Parkinson’s Disease (PD) is the second most common neurological disorder affecting the musculoskeletal function, respiratory function, and laryngeal function. Despite these dysfunctions, persons with PD (PwPD)are still able to positively adapt to exercise training. PURPOSE: The purpose of this study is to investigate changes in physical activity (PA) in PwPD that participate in a long-term boxing training program designed for PwPD. This is a 1-month, preliminary analysis of a larger 12-month longitudinal pilot study. METHODS: Each participant (n=6) will complete a total of 104, 1-hour boxing training session, over the course of 12 months. Prior to participation in the training program and at five timepoints during training (1, 2, 3, 6, and 12 months), participants will complete a self-report survey related to PA behavior (International Physical Activity Questionnaire; IPAQ). This preliminary report is a description of PA changes between baseline and 1-month of intervention. RESULTS: One participant had to discontinue participation in the boxing program so results are based on n=5. Vigorous intensity PA activity increased in 2 participants and decreased in 3 participants resulting in an average of -19 minutes of vigorous PA/person/week. Moderate intensity PA activity increased in 3 participants and decreased in 2 participants resulting in an average of +28 minutes of moderate intensity PA/person/week. Walking time increased in 3 participants and decreased in 2 participants resulting in +14 minutes of walking time/person/week. Sitting time increased in 2 participants and decreased in 3 participants resulting in -25 minutes of sitting time/person/week. CONCLUSION: While data collection for this study is preliminary, promising trends of improved PA behavior (increased PA minutes and decreased sitting minutes) are encouraging. If trends of improved PA behavior are realized over the entirety of this study (12 months), we expect to see other positive neurological outcomes that are also being analyzed in these study participants

Genetic structure and diversity of a rare woodland bat, Myotis bechsteinii: comparison of continental Europe and Britain

The Bechstein’s bat (Myotis bechsteinii) is a rare sedentary bat considered to be highly reliant on the presence of ancient woodland. Understanding the genetic connectivity and population structure of such elusive mammals is important for assessing their conservation status. In this study, we report the genetic diversity and structure of M. bechsteinii across Britain and Europe. Assessments were made using 14 microsatellite markers and a 747 bp region of the mitochondrial cytochrome b gene. Nuclear DNA (microsatellites) showed high levels of genetic diversity and little inbreeding across the species range, though genetic diversity was slightly lower in Britain than in mainland Europe. Bayesian and spatial PCA analysis showed a clear separation between the British and European sites. Within Europe, the Italian population south of the Alps was isolated from the other sites. In Britain, there was genetic structuring between the northern and southern part of the geographical range. Despite there being little genetic divergence in mitochondrial DNA (mtDNA) sequences throughout most of Europe, the mtDNA patterns in Britain confirmed this separation of northern and southern populations. Such genetic structuring within Britain—in the absence of any obvious physical barriers—suggests that other factors such as land-use may limit gene-flow

Time-intensive geoelectrical monitoring under winter wheat

Several studies have explored the potential of electrical resistivity tomography to monitor changes in soil moisture associated with the root water uptake of different crops. Such studies usually use a set of limited below-ground measurements throughout the growth season but are often unable to get a complete picture of the dynamics of the processes. With the development of high-throughput phenotyping platforms, we now have the capability to collect more frequent above-ground measurements, such as canopy cover, enabling the comparison with below-ground data. In this study hourly DC resistivity data were collected under the Field Scanalyzer platform at Rothamsted Research with different winter wheat varieties and nitrogen treatments in 2018 and 2019. Results from both years demonstrate the importance of applying the temperature correction to interpret hourly electrical conductivity (EC) data. Crops which received larger amounts of nitrogen showed larger canopy cover and more rapid changes in EC, especially during large rainfall events. The varieties showed contrasted heights although this does not appear to have influenced EC dynamics. The daily cyclic component of the EC signal was extracted by decomposing the time series. A shift in this daily component was observed during the growth season. For crops with appreciable difference in canopy cover, high frequency DC resistivity monitoring was able to distinguish the different below-ground behaviors. The results also highlight how coarse temporal sampling may affect interpretation of resistivity data from crop monitoring studies

Accounting for heterogeneity in θ-σ relationship:application to wheat phenotyping using ΕMI

Geophysical methods, such as electromagnetic induction (EMI), can be effective for monitoring changes in soil moisture at the field scale, particularly in agricultural applications. The electrical conductivity (σ) inferred from EMI needs to be converted to soil moisture content (θ) using an appropriate relationship. Typically, a single global relationship is applied to an entire agricultural field, however, soil heterogeneity at the field scale may limit the effectiveness of such an approach. One application area that may suffer from such an effect is crop phenotyping. Selecting crop varieties based on their root traits is important for crop breeding and maximizing yield. Hence, high throughput tools for phenotyping the root system architecture and activity at the field-scale are needed. Water uptake is a major root activity and, under appropriate conditions, can be approximated by measuring changes in soil moisture from time-lapse geophysical surveys. We examine here the effect of heterogeneity in the θ-σ relationship using a crop phenotyping study for illustration. In this study, the θ-σ relationship was found to vary substantially across a field site. To account for this, we propose a range of local (plot specific) θ-σ models. We show that the large number of parameters required for these models can be estimated from baseline σ and θ measurements. Finally, we compare the use of global (field scale) and local (plot scale) models with respect to ranking varieties based on the estimated soil moisture content change

High Speed Travelling Wave Carrier Depletion Silicon Mach-Zehnder Modulator

Abstract: We present the first demonstration of a travelling wave carrier depletion Mach-Zehnder modulator impedance matched to 50 : This device has a bandwidth of 24 GHz and a halfwave voltage length product of 0.7 V-cm, placing it among the best in its class