Analysis of Gray Fox (Urocyon cinereoargenteus) Fur Harvests in Arkansas

An investigation was conducted on gray fox (Urocyon cinereoargenteus) fur harvest in Arkansas. Data were gathered from a mail survey of Arkansas trappers and from Arkansas Game and Fish Commission fur harvest records from 1939 to 1983. Analyses of these data demonstrated: 1) gray fox were abundant statewide with lower levels in the Delta region; 2) there was a need for fox trappers to keep better records on their trapping efforts, success and composition of catch, including sex and age data; 3) market price: harvest correlation was high (r = 0.956, p \u3c .001); 4) over the past 10 years, the Ozark Mountain region provided the greatest contribution to annual fox harvests, the Ouachita Mountain and Gulf Coastal Plain regions were similar to each other, but lower than the Ozarks, and the Delta region contributed the least, but with a generally stable harvest

Stingo Stungo

https://digitalcommons.library.umaine.edu/mmb-vp/4817/thumbnail.jp

Stay, Home, Little Girl, Stay Home

https://digitalcommons.library.umaine.edu/mmb-vp/3378/thumbnail.jp

"The Tough Get Tougher": Mental Skills Training With Elite Military Recruits

Mental toughness has been shown to have relevance in a wide range of performance-related fields where distractions, anxiety, and fear are common challenges; however, there remains a dearth of research in the military where the construct has obvious utility. A quasi-experimental trial with treatment (n = 83) and control (n = 90) conditions examined the impact of a psychological skills intervention on observer-rated mental toughness and performance in an elite military context. The results revealed significant differences in the treatment group between pre- and postintervention in the use of psychological skills and observer-rated mental toughness. Furthermore, during the selection course, significant differences were evidenced between the treatment and control groups in the use of relaxation and imagery and individual performance. (PsycINFO Database Record (c) 2017 APA, all rights reserved

Individuals, communities, and sound change:An introduction

Do individual differences affect sound change? Traditional approaches to phonetic and phonological change typically downplay differences between the individuals who make up a speech community that is undergoing change, but this has been questioned in recent years in a number of ways from within several distinct traditions of research. The articles in the Glossa Special Collection to which this article is an introduction consider the extent to which individual differences (at a psychological, sociological, physiological, genetic and/or behavioral level) between the members of a speech community might or might not be important in explaining the general properties of sound change. This introduction places these articles in context, considers what we might mean by ‘sound change’ and ‘individual differences’, and aims to build a synthesis of the current research landscape in the area

Experiments and simulations of MEMS thermal sensors for wall shear-stress measurements in aerodynamic control applications

MEMS thermal shear-stress sensors exploit heat-transfer effects to measure the shear stress exerted by an air flow on its solid boundary, and have promising applications in aerodynamic control. Classical theory for conventional, macroscale thermal shear-stress sensors states that the rate of heat removed by the flow from the sensor is proportional to the 1/3-power of the shear stress. However, we have observed that this theory is inconsistent with experimental data from MEMS sensors. This paper seeks to develop an understanding of MEMS thermal shear-stress sensors through a study including both experimental and theoretical investigations. We first obtain experimental data that confirm the inadequacy of the classical theory by wind-tunnel testing of prototype MEMS shear-stress sensors with different dimensions and materials. A theoretical analysis is performed to identify that this inadequacy is due to the lack of a thin thermal boundary layer in the fluid flow at the sensor surface, and then a two-dimensional MEMS shear-stress sensor theory is presented. This theory incorporates important heat-transfer effects that are ignored by the classical theory, and consistently explains the experimental data obtained from prototype MEMS sensors. Moreover, the prototype MEMS sensors are studied with three-dimensional simulations, yielding results that quantitatively agree with experimental data. This work demonstrates that classical assumptions made for conventional thermal devices should be carefully examined for miniature MEMS devices

Beyond Covalent Crosslinks: Applications of Supramolecular Gels

Traditionally, gels have been defined by their covalently cross-linked polymer networks. Supramolecular gels challenge this framework by relying on non-covalent interactions for self-organization into hierarchical structures. This class of materials offers a variety of novel and exciting potential applications. This review draws together recent advances in supramolecular gels with an emphasis on their proposed uses as optoelectronic, energy, biomedical, and biological materials. Additional special topics reviewed include environmental remediation, participation in synthesis procedures, and other industrial uses. The examples presented here demonstrate unique benefits of supramolecular gels, including tunability, processability, and self-healing capability, enabling a new approach to solve engineering challenges. Keywords: supramolecular gel; self-assembly; gels; applied soft matte

An acoustic analysis of tone and register in Louma Oeshi

This study describes the acoustic properties associated with tone and register in Louma Oeshi, a previously unstudied Akoid language of Laos. Louma Oeshi uses three tones (High, Mid, and Low) which overlap with a tense/lax register distinction to yield a six-way suprasegmental contrast. In this paper, we (1) offer a first account of the pitch and voice quality characteristics associated with each Tone-Register pair, (2) examine further the variability in glottalization strategies signaling the constricted register, and (3) explore the influence of contrastive voice quality on pitch and vice versa, particularly as a predictor of the variation in glottalization

Microsensors and actuators for macrofluidic control

Microsensors and actuators suitable for macrofluidic control have been designed, fabricated, tested, and optimized over the span of the last decade. MEMS-based shear stress sensor arrays using polysilicon hot filaments have been fabricated on both rigid (silicon) and flexible (parylene) substrate for application on all types of fluid dynamic and aerodynamic surfaces. In addition, MEMS bubble flap-type pneumatic actuators have been tested and used in turbulent boundary layer drag reduction in conjunction with the rigid MEMS shear stress sensor arrays acting as high-speed shear stress imagers. The flexible MEMS bubble actuator arrays have also been used with the flexible shear stress sensor arrays for generating maneuvering forces in the wind tunnel for a delta wing model and on UAV-type radio-controlled aircraft