Value Added to the Beef Cattle Chain through Genetic Management

Genetics have a direct impact on the carcass quality of an animal. The objective of the study is to determine whether managing genetics has an impact on quality of beef carcasses. Genetic management was found to have a positive impact on quality grade and no impact on yield grade.Livestock Production/Industries,

Vertical variation in flight activity of the lesser short-tailed bat in podocarp and beech forests, Central North Island, New Zealand

Designing robust monitoring programmes for cryptic species is particularly difficult. Not detecting a species does not necessarily mean that it is absent from the sampling area. A conclusion of absence made in error can lead to misguided inferences about distribution, colonisation and local extinction estimates, which in turn affects where and how conservation actions are undertaken. It is therefore important to investigate monitoring techniques that reduce the non-detection rate of cryptic species. As habitat complexity plays an important role in the activity of bats within a forest, it was hypothesised that the amount of vegetative ‘clutter’ present at different heights within two different forest types affected the flight activity of lesser short-tailed bats (Mystacina tuberculata). This could affect detection of the species within different forest structures. To compare bat activity at three heights – top (22.0–25.0 m), middle (10.0–12.0 m) and bottom (1.5–2.0 m) – within a podocarp and a beech forest we used automatic bat monitors during January to March 2005. The number of bat passes was recorded at each height at two study areas within each forest and compared between forest types. The forest structure was described using the Recce method and vegetative cover estimated within the three height tiers sampled for bat activity. Within both forest types, the middle-level bat detectors logged the greatest amount of activity. However, differences between the forest types were most pronounced closer to the ground, where a high amount of activity was detected within the beech forest, and very little within the podocarp forest. This suggests that flight activity of lesser short-tailed bats may be affected by the level of vegetative clutter found at different heights within a forest. When designing monitoring programmes for lesser short-tailed bats, it is recommended that consideration be given to the forest structure and how this may affect detection of bat activity

Examining the Relationship between GABRA2 & Alcohol Drinking Frequency

Past research has shown that an individual’s level of alcohol use may depend on various factors, both genetic and environmental, along with the interaction between them. Several studies have found that certain variants within the GABRA2 gene may be associated with elevated levels of alcohol use. This issue is of particular concern in college campuses, where social pressure becomes an important environmental factor. To better understand how genetic and environmental factors come together to influence substance use and emotional health, a group of students attending Virginia Commonwealth University in Richmond, VA submitted DNA samples and answered survey questions as part of the Spit for Science research project. The cohort entered college in the fall of 2011 and took follow-up surveys during the spring of their freshman and sophomore years. A total of one thousand and four participants who reported that they have previously consumed alcohol were asked about the frequency of their alcohol use. Regression analysis was used to examine associations between GABRA2 genotype, peer deviance, and alcohol consumption. We hypothesized that high levels of peer deviance and specific variants within GABRA2 correspond to increased levels of alcohol use. The conclusions of this study can be used to create specific techniques for decreasing alcohol abuse among college students and lead to better understanding of how to create effective treatment and prevention strategies.https://scholarscompass.vcu.edu/uresposters/1091/thumbnail.jp

Recent Developments in Osteogenesis Imperfecta

Osteogenesis imperfecta (OI) is an uncommon genetic bone disease associated with brittle bones and fractures in children and adults. Although OI is most commonly associated with mutations of the genes for type I collagen, many other genes (some associated with type I collagen processing) have now been identified. The genetics of OI and advances in our understanding of the biomechanical properties of OI bone are reviewed in this article. Treatment includes physiotherapy, fall prevention, and sometimes orthopedic procedures. In this brief review, we will also discuss current understanding of pharmacologic therapies for treatment of OI

Teens, Video Games, and Civics

Analyzes survey findings on trends in teenagers' video gaming, the social context, the role of parents and monitoring, and the link between specific gaming experiences and civic activities. Explores gaming's potential as civic learning opportunities

The Value Driven Pharmacist: Basics of Access, Cost, and Quality 2nd Edition

https://digitalcommons.butler.edu/butlerbooks/1017/thumbnail.jp

The combinatorics of interval-vector polytopes

An \emph{interval vector} is a $(0,1)$-vector in $\mathbb{R}^n$ for which all the 1's appear consecutively, and an \emph{interval-vector polytope} is the convex hull of a set of interval vectors in $\mathbb{R}^n$. We study three particular classes of interval vector polytopes which exhibit interesting geometric-combinatorial structures; e.g., one class has volumes equal to the Catalan numbers, whereas another class has face numbers given by the Pascal 3-triangle.Comment: 10 pages, 3 figure