Enhancing Undergraduate Education: Examining Faculty Experiences During Their First Year in a Residential College and Exploring the Implications for Student Affairs Professionals

The article discusses the results of a study on the experiences and insights of faculty members in a new residential college. The researchers used a constructivist, case study method to determine how faculty made meaning of their experiences in a residential college at a major, land-grant research university in the Midwest U.S. The findings of the study indicate that the residential college environment did not ameliorate the time pressures experienced by faculty

We Are One in Christ: The Task Before Us

https://digitalcommons.acu.edu/crs_books/1371/thumbnail.jp

Microscale wave breaking and air-water gas transfer

Laboratory results showing that the air-water gas transfer velocity k is correlated with mean square wave slope have been cited as evidence that a wave-related mechanism regulates k at low to moderate wind speeds [Jähne et al., 1987; Bock et al., 1999]. Csanady [1990] has modeled the effect of microscale wave breaking on air-water gas transfer with the result that k is proportional to the fractional surface area covered by surface renewal generated during the breaking process. In this report we investigate the role of microscale wave breaking in gas transfer by determining the correlation between k and AB, the fractional area coverage of microscale breaking waves. Simultaneous, colocated infrared (IR) and wave slope imagery is used to verify that AB detected using IR techniques corresponds to the fraction of surface area covered by surface renewal in the wakes of microscale breaking waves. Using measurements of k and AB made at the University of Washington wind-wave tank at wind speeds from 4.6 to 10.7 m s−1, we show that k is linearly correlated with AB, regardless of the presence of surfactants. This result is consistent with Csanady's [1990] model and implies that microscale wave breaking is likely a fundamental physical mechanism contributing to gas transfer

Development of measurement techniques for studying propeller erosion damage in severe wake fields

Preliminary propeller erosion tests have been conducted at the Naval Surface Warfare Center Carderock Division 24 inch variable pressure water tunnel (VPWT), shown in Figure 1, to establish testing procedures for evaluating various coatings to minimize cavitation erosion damage to marine propellers. A severe wake field was produced using a two dimensional, thick foil ahead of a downstream driven propeller model. This approach was derived from similar tests conducted by Miller [11]. Conventional cavitation viewing was performed with cameras viewing through the tunnel side window. Images were acquired using high speed (up to 6000 fps) and high resolution (2K x 2K) cameras. In addition, a waterproof camera was mounted inside the foil looking directly downstream at the suction face of the blade. Two propellers were tested, a 16 inch (0.406 m) diameter propeller 5388 and a 12 inch (0.305 m) diameter propeller 4119 [8]. The foil wake field was measured with LDV surveys. Accelerometers were mounted in the water tunnel test section to measure acoustic emissions of cavitation activity. Cavitation erosion was observed at the tip of the 16 inch diameter propeller due to excessive tip vortex, and complicated vortex collapse. Moderate erosion was also observed at the inner radii, where leading edge sheet cavitation collapsed. Scanning techniques for quantifying propeller erosion damage were evaluated. These studies will transition to the 36-inch VPWT where a number of geosym propellers of different materials and coating will be assessed in a similar wake field.http://deepblue.lib.umich.edu/bitstream/2027.42/84210/1/CAV2009-final156.pd

Implications for telehealth for accessing education in rural areas: children with a severe chronic disease.

Children and their families who live in rural and remote areas are often disadvantaged by distance. In healthcare, this can be especially problematic. Children can suffer from a range of chronic conditions, e.g. diabetes, asthma, cardiac conditions, cystic fibrosis and others. In Australia, health services for children and families with such conditions are centred in specialist children’s hospitals in the capital cities in each state, but the burden of health care often falls to the parents and the children themselves. While rural health services do a wonderful job providing health care for these children, it is very rare to find specialist services in any rural situation. For example, children with cystic fibrosis who live in remote parts of Queensland attend specialist clinics in their local hospital twice or three times a year for routine check-ups, when the cystic fibrosis team of nurses, doctors and allied health staff from the children’s hospital in Brisbane travels to rural areas. If children become acutely ill, they might be able to be treated in the local hospital if they are not too sick, or they could be taken to the children’s hospital in Brisbane by their parents. If they are having a serious exacerbation of the illness, they will be transported there by aircraft and ambulance. Any child being sick is stressful for the family, regardless of where they live. However, if families live thousands of kilometres from the main treatment centres, scenarios described above can be common, with subsequent family disruption and emotional, social and economic costs. Telehealth is being installed in many rural and remote health services, thereby allowing country families the benefit of specialist consultation and care. However, governments and health departments are only slowly engaging with such technology. This paper presents findings of a study in Far North Queensland which examined how care was delivered to rural and remote families with children with cystic fibrosis, and how they cope. It will discuss how telehealth could improve care to such families and pose questions about why this is so slow in being implemented in Australia

III. Report of the Committee on Dental Education of the Association of American University: 1926

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/66524/2/10.1177_00220345270070041104.pd

Prioritizing Tasks in Code Repair: A Psychological Exploration of Computer Code

The current study explored the influence of task prioritization on how computer programmers reviewed and edited code. Forty-five programmers recruited from Amazon Mechanical Turk downloaded and edited a computer program in C#. Programmers were given instructions to review the code and told to prioritize either the reputation, transparency, or performance aspects of the code, or were given no prioritization instruction. Code changes and remarks about their changes to the code were analyzed with a between-within multivariate analysis of variance. Results indicate prioritizing an aspect of the code leads to increased performance on that aspect, but with deficits to other aspects of the code. Managers may want programmers to prioritize certain aspects of code depending on the stage of development of the software (i.e., testing, rollout, etc.). However, managers should also be cognizant of the effects task prioritization has on programmer perceptions of the code as a whole

Identification of Brush Species and Herbicide Effect Assessment in Southern Texas Using an Unoccupied Aerial System (UAS)

Cultivation and grazing since the mid-nineteenth century in Texas has caused dramatic changes in grassland vegetation. Among these changes is the encroachment of native and introduced brush species. The distribution and quantity of brush can affect livestock production and water holding capacity of soil. Still, at the same time, brush can improve carbon sequestration and enhance agritourism and real estate value. The accurate identification of brush species and their distribution over large land tracts are important in developing brush management plans which may include herbicide application decisions. Near-real-time imaging and analyses of brush using an Unoccupied Aerial System (UAS) is a powerful tool to achieve such tasks. The use of multispectral imagery collected by a UAS to estimate the efficacy of herbicide treatment on noxious brush has not been evaluated previously. There has been no previous comparison of band combinations and pixel- and object-based methods to determine the best methodology for discrimination and classification of noxious brush species with Random Forest (RF) classification. In this study, two rangelands in southern Texas with encroachment of huisache (Vachellia farnesianna [L.] Wight & Arn.) and honey mesquite (Prosopis glandulosa Torr. var. glandulosa) were studied. Two study sites were flown with an eBee X fixed-wing to collect UAS images with four bands (Green, Red, Red-Edge, and Near-infrared) and ground truth data points pre- and post-herbicide application to study the herbicide effect on brush. Post-herbicide data were collected one year after herbicide application. Pixel-based and object-based RF classifications were used to identify brush in orthomosaic images generated from UAS images. The classification had an overall accuracy in the range 83–96%, and object-based classification had better results than pixel-based classification since object-based classification had the highest overall accuracy in both sites at 96%. The UAS image was useful for assessing herbicide efficacy by calculating canopy change after herbicide treatment. Different effects of herbicides and application rates on brush defoliation were measured by comparing canopy change in herbicide treatment zones. UAS-derived multispectral imagery can be used to identify brush species in rangelands and aid in objectively assessing the herbicide effect on brush encroachment