University of Georgia

About: University of Georgia is a education organization based out in Athens, Georgia, United States. It is known for research contribution in the topics: Population & Gene. The organization has 41934 authors who have published 93622 publications receiving 3713212 citations. The organization is also known as: UGA & Franklin College.

Assessment of Course-Based Undergraduate Research Experiences: A Meeting Report.

Abstract: The Course-Based Undergraduate Research Experiences Network (CUREnet) was initiated in 2012 with funding from the National Science Foundation program for Research Coordination Networks in Undergraduate Biology Education. CUREnet aims to address topics, problems, and opportunities inherent to integrating research experiences into undergraduate courses. During CUREnet meetings and discussions, it became apparent that there is need for a clear definition of what constitutes a CURE and systematic exploration of what makes CUREs meaningful in terms of student learning. Thus, we assembled a small working group of people with expertise in CURE instruction and assessment to: 1) draft an operational definition of a CURE, with the aim of defining what makes a laboratory course or project a “research experience”; 2) summarize research on CUREs, as well as findings from studies of undergraduate research internships that would be useful for thinking about how students are influenced by participating in CUREs; and 3) identify areas of greatest need with respect to CURE assessment, and directions for future research on and evaluation of CUREs. This report summarizes the outcomes and recommendations of this meeting.

Effective instructional leadership: Teachers’ perspectives on how principals promote teaching and learning in schools

Abstract: Few studies have directly examined teachers’ perspectives on principals’ everyday instructional leadership characteristics and the impacts of those characteristics on teachers. In this study, over 800 American teachers responded to an open‐ended questionnaire by identifying and describing characteristics of principals that enhanced their classroom instruction and what impacts those characteristics had on them. The data revealed two themes (and 11 strategies) of effective instructional leadership: talking with teachers to promote reflection and promoting professional growth.

Histamine food poisoning: toxicology and clinical aspects.

Abstract: Histamine poisoning can result from the ingestion of food containing unusually high levels of histamine. Fish are most commonly involved in incidents of histamine poisoning, although cheese has also been implicated on occasion. The historic involvement of tuna and mackerel in histamine poisoning led to the longtime usage of the term, scombroid fish poisoning, to describe this food-borne illness. Histamine poisoning is characterized by a short incubation period, a short duration, and symptoms resembling those associated with allergic reactions. The evidence supporting the role of histamine as the causative agent is compelling. The efficacy of antihistamine therapy, the allergic-like symptomology, and the finding of high levels of histamine in the implicated food suggest strongly that histamine is the causative agent. However, histamine ingested with spoiled fish appears to be much more toxic than histamine ingested in an aqueous solution. The presence of potentiators of histamine toxicity in the spoiled fish may account for this difference in toxicity. Several potentiators including other putrefactive amines such as putrescine and cadaverine have been identified. Pharmacologic potentiators may also exist; aminoguanidine and isoniazid are examples. The mechanism of action of these potentiators appears to be the inhibition of intestinal histamine-metabolizing enzymes. This enzyme inhibition causes a decrease in histamine detoxification in the intestinal mucosa and results in increased intestinal uptake and urinary excretion of unmetabolized histamine.

What happens after ERP implementation: understanding the impact of interdependence and differentiation on plant-level outcomes

Abstract: We present a model of the organizational impacts of enterprise resource planning (ERP) systems once the system has gone live and the "shake-out" phase has occurred. Organizational information processing theory states that performance is influenced by the level of fit between information processing mechanisms and organizational context. Two important elements of this context are interdependence and differentiation among subunits of the organization. Because ERP systems include data and process integration, the theory suggests that ERP will be a relatively better fit when interdependence is high and differentiation is low. Our model focuses at the subunit level of the organization (business function or location, such as a manufacturing plant) and includes intermediate benefits through which ERP's overall subunit impact occurs (in our case at the plant level). ERP customization and the amount of time since ERP implementation are also included in the model. The resulting causal model is tested using a questionnaire survey of 111 manufacturing plants. The data support the key assertions in the model.

A comparative summary of genetic distances in the vertebrates from the mitochondrial cytochrome b gene.

Abstract: Mitochondrial cytochrome b (cytb) is among the most extensively sequenced genes to date across the vertebrates. Here, we employ nearly 2,000 cytb gene sequences from GenBank to calculate and compare levels of genetic distance between sister species, congeneric species, and confamilial genera within and across the major vertebrate taxonomic classes. The results of these analyses parallel and reinforce some of the principal trends in genetic distance estimates previously reported in a summary of the multilocus allozyme literature. In particular, surveyed avian taxa on average show significantly less genetic divergence than do same-rank taxa surveyed in other vertebrate groups, notably amphibians and reptiles. Various biological possibilities and taxonomic "artifacts" are considered that might account for this pattern. Regardless of the explanation, by the yardstick of genetic divergence in this mtDNA gene, as well as genetic distances in allozymes, there is rather poor equivalency of taxonomic rank across some of the vertebrates.