And garments of green girt the fellow about...

This garment was inspired by the legend of the Green Man, an otherworldly figure who inhabited the lands and forests of medieval Europe (Raglan, 1939). Green Man appears in art, often as a foliate head carved into churches and other structures. He also appears in literature and folk tales; some even say that Robin Hood has his origins in the Green Man myth. The concept for this piece brings together medieval and modern aesthetics and techniques

Comparing the Efficiency of Heterogeneous and Homogeneous Data Center Workloads

Abstract Information Technology, as an industry, is growing very quickly to keep pace with increased data storage and computing needs. Data growth, if not planned or managed correctly, can have larger efficiency implications on your data center as a whole. The long term reduction in efficiency will increase costs over time and increase operational overhead. Similarly, increases in processor efficiency have led to increased system density in data centers. This can increase cost and operational overhead in your data center infrastructure. This paper proposes the idea that balanced data center workloads are more efficient in comparison to similar levels of data center workloads that are not balanced across the data center facility. Identifying and documenting this effect would enable system architects to better plan data center system expansions and migrations effectively, while keeping in mind the total cost of the data center facility. I conducted a scale experiment of data center heat job placement and collected data during multiple data runs. The scale experiment apparatus will allow the researchers to directly control the utilization of servers at all times while collecting data. Data collected will include processor utilization as well as the temperatures of both the hot and cold aisles during the entirety of the experimental procedure. The experimental research hopes to show that the balanced workload has a positive effect on the temperature difference observed across the hot and cold aisle for the balanced workload tests. A rise in temperature difference would support the conclusion that is proposed by this research

Characterizing the roles of cannabinoid receptor 1 & 2 in zebrafish behavior, metabolism, and seizure-induced activity

Epileptic disorders like Dravet Syndrome require novel studies to determine the most ideal treatment. New research linking the endocannabinoid system (ECS) to epileptic disorders is arising, but there is still much to be discovered about the function and regulatory impact of the endocannabinoid system and its receptors in epilepsies like Dravet. In this study, knockout models of larval and adult zebrafish (Danio rerio) were used to investigate the roles of cannabinoid receptors 1 & 2 in behavior, brain mitochondrial metabolism, and seizure-induced activity following exposure to THC and CBD. Larval zebrafish which lacked cannabinoid receptor 1 exhibited increased locomotion compared to the wild-type (5D) line and cannabinoid receptor 2 null line. Conversely, adult zebrafish which lacked cannabinoid receptor 1 exhibited decreased locomotion, while adult zebrafish which lacked cannabinoid receptor 2 exhibited increased time spent in the periphery in the open field test compared to the wild-type line. Adult males significantly spent more time in the periphery than females and exhibited higher metabolic rates during specific stages of mitochondrial respiration regardless of line. Larval zebrafish that were exposed to THC and CBD following seizure induction by pentylenetetrazole (PTZ) were unaffected by the cannabinoid treatment, displaying no significant response. While we could not determine the exact mechanism behind the function of cannabinoid receptors in seizure-induced activity, this study found that cannabinoid receptors 1 & 2 do play a role in the behavior of zebrafish and are possibly involved in pathways that may link the ECS to epileptic behavior

Nematode resistance in tall fescue

Tall fescue, Festuca arundinacea. an important forage grass in the southeastern United States, is frequently infected with Acremonium coenophialum. an endophytic fungus associated with fescue toxicosis in livestock. Endophyte-free (E-) tall fescue is more difficult to establish and are not as resistant to environmental stress and pests as endophyte-infected (E+) tall fescue. Greenhouse trials were conducted on three species of plant-parasitic nematodes with different feeding patterns to compare populations on E+ and E- tall fescue. Presence or absence of the endophyte was determined with PAS-ELISA. After 15 weeks, numbers of Pratylenchus scribneri. a migratory endoparasite, were significantly higher on E- than on E+ tall fescue roots. After 8 weeks, numbers of egg masses and eggs of Meloidogyne graminis, a sedentary endoparasite, were significantly higher on E- than on E+ tall fescue. Numbers of Helicotylenchus pseudorobustus, an ectoparasite, were not significantly different on E- and E+ tall fescue after 8 weeks. Numbers of an undescribed species of Meloidogyne, which is parasitic on legumes, were unaffected by presence of E+ or E- tall fescue in the rhizosphere. Results of these experiments suggest that substances within E+ tall fescue roots may be inhibitory or toxic to some plant parasitic nematodes. These substances have not been identified. A bioassay using P. scribneri as the test organism was developed to determine toxicity of alkaloids and other compounds isolated from E+ tall fescue. Nematodes were exposed to test compounds for 48 hours; survivors were allowed to exit the test system for 72 hours and were counted. Ergotamine tartrate was more toxic to nematodes than saturated pyrrolizidines

Anne Kimmons Scrapbook

1932-1933 scrapbook of Anne Kimmons (Class of 1935). Photos include groups of students in and around campus as well as campus events such as Tinker Day.https://digitalcommons.hollins.edu/scrapbooks/1035/thumbnail.jp

Successful Schools for African American Children: A Case Study of Franklin Elementary School

The goal of this study was to contribute to a better understanding of what makes a successful school for African American children. Theresa Perry\u27s (2010) Theory of Practice for African American School Achievement provided the framework for my study. Perry states that schools need to have two characteristics for African American students to be successful. First African American students must be members of a community of practice, which normalizes achievement. Second, schools must offer a broad range of supports that allow students to learn, to practice, and to receive reinforcement with regard to the behaviors and practices that are necessary for one to be an achiever. Guided by Perry\u27s framework, I conducted a case study of a Franklin Elementary, a school whose academic achievement test data indicate that they are successful in educating African American children. Three forms of data were collected and analyzed for this study: survey, interview, and documentations. Quantitative data were analyzed using SPSS. Interview and documentation data were analyzed using the cut and sort method, in which documents were cut and repeatedly sorted to detect themes related to Perry\u27s framework. I applied my findings to operationalize Perry\u27s framework, in an effort to provide helpful guidance for other schools serving African American children. The knowledge gained in this study contributes to a better understanding of what makes a successful school for African American childre

A Study of the Factors Which Determine the Persistence Rate of Adult Basic Education Students

This study was guided by the following research questions: 1. Determine the beginning reading levels of participants; 2. Determine stated motivation of participants; 3. Determine age, race, and sex of students; 4. Determine the number of years since leaving formal education and the grade level attained at that time; 5. Determine participants\u27 attitudes toward previous school experience; 6. Determine which factors influenced full participation in ABE programs such as PULL

Life History Variation of Common Terns in the Gulf of Maine

Life history is the inheritable rules that determine energy and time allocation towards different competing functions in the energy budget of an organism. Reproductive effort varies as organisms make reproductive decisions based on available energy. Factors influencing life histories are those that change energy and time budgets such as diet, competition, and environmental conditions. Common tern (Sterna hirundo) life history phenotypes vary between islands in the Gulf of Maine. Common terns on offshore islands (\u3e10km from mainland) and nearshore islands (5 to 10km from mainland) lay smaller clutches, hatching chicks with slower growth rates than common terns on inshore islands (mainland). Previous research suggests differences are due to offshore colonies consuming lower quality prey than inshore terns. Common tern diets on different islands were determined by carbon and nitrogen stable isotopes in juvenile feathers and observations of prey deliveries to juveniles by adults. Common terns on offshore islands were feeding low quality euphasiids (Meganyctiphanes norvegica) and had a depleted nitrogen signature relative to inshore islands feeding on fish. Common terns could be competing with other tern species. Offshore island colonies contain arctic (Sterna paradisaea) and common terns, inshore and nearshore colonies contain common and roseate (Sterna dougallii) terns. Competition was determined by overlap of carbon and nitrogen stable isotopes in juvenile feathers and Morisita\u27s index of dietary overlap for observed prey deliveries by adults to juveniles. Competition could exist between arctic and common terns on Matinicus Rock, an offshore island, and common and roseate terns on Outer Green Island, an inshore colony and Eastern Egg Rock, a nearshore island. Decreased temperatures between islands also forces chicks to expend more energy for thermoregulation instead of growth. Thermoregulatory costs between offshore and inshore islands were measured using copper models representing tern chicks. Thermoregulatory costs were higher on offshore islands relative to inshore islands. Common tern phenotype plasticity in the Gulf of Maine was mainly due to diet. Consistent cooler temperature on offshore colonies also influences energy dedicated to growth in juveniles. Competition may limit energy budgets, but possible competition could be seen on all island types

Faculty Members’ Lived Experiences with Choosing Open Educational Resources

The cost of textbooks has continued to increase with significant financial effects on students in higher education. Although many faculty express a desire and willingness to adopt and create open textbooks (and OER generally), few actually do. To better understand this gap between attitudes and practices, this phenomenological study builds upon the findings of a survey of faculty members at a large, nationally-ranked, high-research-activity university in the U.S. and uses in-depth interviews to understand faculty members’ lived experiences with OER adoption and creation. Results indicated that though faculty might be motivated to use and create OER to reduce cost and improve pedagogy, they are regularly stymied by quality considerations, copyright fears, technical difficulties, and sustainability concerns. We explore each of these issues in some depth and provide discussion and suggestions on how similar institutions (e.g., high-research-activity) should respond to help support OER adoption and creation

Aerodynamic effects of surface deformities on aerofoils for low-speed stratospheric flight

© IMechE 2022. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1177/09544100221093210High-altitude pseudo-satellites are an expanding focal area of the aerospace industry which require new technologies and manufacturing processes to reduce weight and increase efficiency with the aim of increasing endurance. One such process has resulted in the occurrence of small deformities along the leading edge of a lightweight unmanned aerial vehicle structure with the application of its skin, which may have a detrimental impact on its performance and efficiency. This paper focuses on the effects of these manufacturing deformities on the aerodynamic performance of the vehicle’s aerofoil when operating in low Reynolds number flow with the intention of identifying any detrimental flow variation. This analysis is achieved by comparing the lift curve, drag polar and pressure coefficient of both the deformed and undeformed cases of two aerofoils: a SG6042 and a GOE 523. This is accompanied with an examination of the local flow conditions scrutinising the near-wall y+ and turbulent kinetic energy calculations. The investigation finds that in two-dimensional flow, the deformities replicate the effects of transition trips in the shrinking or elimination of laminar separation bubbles. At Reynolds numbers below 250,000, the deformities reduce the net drag while leaving the lift largely unaffected. However, as a result, there is a slight shift in the minimum power condition in the order of 8% which would produce some performance loss for power efficiency and endurance.Peer reviewe