Synchronous Online Tutoring for Deaf and Hard-of-Hearing Students: An Analysis of Observed Functions

Literature on online learning suggests that many faculty members are reluctant to participate in online learning activities. Concerns raised include faculty concerns that the experiences may be impersonal and that technology will stand in the way of the learning experience. Despite this resistance, students are more likely to endorse online learning strategies, especially because they provide more flexibility in managing complex schedules. Previous research from the Deaf STEM Community Alliance project found that students were positive about their experiences—the opportunity to communicate online enabled students to seek out tutoring that they would not have been able to get otherwise due to scheduling conflicts. Furthermore, students felt that the synchronous online experience was not different than an in-person tutoring session (Elliot et al., 2013). A case study analysis of some of these online sessions suggested that synchronous online tutoring is more beneficial than in-person sessions for some courses, and less beneficial in others. Specifically, synchronous tutoring can be helpful in situations in which tutoring materials can be incorporated into the tutoring session to foster active learning. (Gehret, Elliot, MacDonald, 2017). One of the key activities of the Deaf STEM Community Alliance has been the opportunity for students to receive synchronous tutoring from NTID tutors and project staff. Through the project, more than 35 students have received this type of tutoring, and there have been more than 170 tutoring sessions to date. The proposed presentation reports on the synthesis of coding of a subset of these sessions, which lasted between 15-120 minutes, with an average length of 60 minutes. The research question guiding the analysis is, “what is happening during synchronous tutoring?” Using conversational data analysis techniques (Sidnell, 2012), the research team coded more than 500 segments of tutoring sessions that were video recorded. The segments come from 29 videos that represented STEM tutoring sessions in Biochemistry, Mathematics and Physics. The coding was largely conducted by student research assistants associated with the project, including native ASL speakers and those who were fluent in ASL. Preliminary data for this project has been presented at the NTID Student Research symposia (REF; REF) and an earlier NTID Scholarship Symposium (Elliot, 20??) and the Lilly Conference on College Teaching and Learning (Elliot, 20??) Tutoring conversations were analyzed for who was speaking (learner, tutor), communication strategies, the nature of the interaction, the types of materials being used, and issues related to technology. The analyses suggest that a) the majority of the communication used ASL, with some SimComm and text chat also used; b) most of the interactions involved hardcopy, paper documents; and, c) tutoring sessions experienced very few technical problems (less than 1% of codes accounted for technical problems). While a primary barrier of online adoption commonly expressed by faculty relates to concerns about technology and technology breakdown, the data from this study do not support that hypothesis. With adequate training and available technical assistance, it is possible to have successful synchronous tutoring sessions that focus on student learning

Deaf STEM Community Alliance: Establishing a model virtual academic community

Abstract - This presentation describes the incremental and iterative development of the Deaf STEM Community Alliance’s virtual academic community, the Deaf and Hard of Hearing Virtual Academic Community (DHHVAC). The DHHVAC components address three critical barriers to the success of students who are deaf or hard-of-hearing: student preparation, socialization, and access to media

Creating an Online Community of Practice: The Deaf and Hard of Hearing Virtual Academic Community

This presentation describes the activities of the Deaf STEM Community Alliance project using the social media platform Google+ private community. The private community provides socialization opportunities and shares accessible STEM media with community participants. A pilot study was conducted on a segment of the community’s activity. Posting frequency was analyzed for the highest impact day, posting times, and types of posts that received the most activity. Tuesdays were the most active, and the best times to post were during the afternoon hours. Posts having content related to community members received the most responses. These findings were compared to research on posting frequency in open social media platforms. Future research should investigate in greater detail the uses of social media for education and for other groups with disabilities

College Students’ Perceptions of the C-Print Speech-to-Text Transcription System

C-Print is a real-time speech-to-text transcription system used as a support service with deaf students in mainstreamed classes. Questionnaires were administered to 36 college students in 32 courses in which the C-Print system was used in addition to interpreting and notetaking. Twenty-two of these students were also interviewed. Questionnaire items included student ratings of lecture comprehension. Student ratings indicated good comprehension with C-Print, and the mean rating was significantly higher than that for understanding of the interpreter. Students also rated the hard-copy printout provided by C-Print as helpful, and they reported that they used these notes more frequently than the handwritten notes from a paid student notetaker. Interview results were consistent with those for the questionnaire. Questionnaire and interview responses regarding use of C-Print as the only support service indicated that this arrangement would be acceptable to many students, but that it would not be to others. Communication characteristics were related to responses to the questionnaire. Students who were relatively proficient in reading and writing English, and in speech-reading, responded more favorably to C-Print

Pinning Susceptibility: The Effect Of Dilute, Quenched Disorder On Jamming

We study the effect of dilute pinning on the jamming transition. Pinning reduces the average contact number needed to jam unpinned particles and shifts the jamming threshold to lower densities, leading to a pinning susceptibility, χp. Our main results are that this susceptibility obeys scaling form and diverges in the thermodynamic limit as χp∝|ϕ−ϕ∞c|−γp where ϕ∞c is the jamming threshold in the absence of pins. Finite-size scaling arguments yield these values with associated statistical (systematic) errors γp=1.018±0.026(0.291) in d=2 and γp=1.534±0.120(0.822) in d=3. Logarithmic corrections raise the exponent in d=2 to close to the d=3 value, although the systematic errors are very large

Circumstantial Evidence for a Critical Behavior in Peripheral Au + Au Collisions at 35 MeV/nucleon

The fragmentation resulting from peripheral Au + Au collisions at an incident energy of E = 35 MeV/nucleon is investigated. A power-law charge distribution, $A^{-\tau}$ with $\tau \approx 2.2$, and an intermittency signal are observed for events selected in the region of the Campi scatter plot where "critical" behavior is expected.Comment: 11 pages, RevTex file, 4 postscript figures available upon request from [email protected]

An Observationally Constrained Evaluation of the Oxidative Capacity in the Tropical Western Pacific Troposphere

Hydroxyl radical (OH) is the main daytime oxidant in the troposphere and determines the atmospheric lifetimes of many compounds. We use aircraft measurements of O3, H2O, NO, and other species from the Convective Transport of Active Species in the Tropics (CONTRAST) field campaign, which occurred in the tropical western Pacific (TWP) during January–February 2014, to constrain a photochemical box model and estimate concentrations of OH throughout the troposphere. We find that tropospheric column OH (OHCOL) inferred from CONTRAST observations is 12 to 40% higher than found in chemical transport models (CTMs), including CAM-chem-SD run with 2014 meteorology as well as eight models that participated in POLMIP (2008 meteorology). Part of this discrepancy is due to a clear-sky sampling bias that affects CONTRAST observations; accounting for this bias and also for a small difference in chemical mechanism results in our empirically based value of OHCOL being 0 to 20% larger than found within global models. While these global models simulate observed O3 reasonably well, they underestimate NOx (NO + NO2) by a factor of two, resulting in OHCOL ~30% lower than box model simulations constrained by observed NO. Underestimations by CTMs of observed CH3CHO throughout the troposphere and of HCHO in the upper troposphere further contribute to differences between our constrained estimates of OH and those calculated by CTMs. Finally, our calculations do not support the prior suggestion of the existence of a tropospheric OH minimum in the TWP, because during January–February 2014 observed levels of O3 and NO were considerably larger than previously reported values in the TWP

Community based intervention to optimize osteoporosis management: randomized controlled trial

<p>Abstract</p> <p>Background</p> <p>Osteoporosis-related fractures are a significant public health concern. Interventions that increase detection and treatment of osteoporosis are underutilized. This pragmatic randomised study was done to evaluate the impact of a multifaceted community-based care program aimed at optimizing evidence-based management in patients at risk for osteoporosis and fractures.</p> <p>Methods</p> <p>This was a 12-month randomized trial performed in Ontario, Canada. Eligible patients were community-dwelling, aged ≥55 years, and identified to be at risk for osteoporosis-related fractures. Two hundred and one patients were allocated to the intervention group or to usual care. Components of the intervention were directed towards primary care physicians and patients and included facilitated bone mineral density testing, patient education and patient-specific recommendations for osteoporosis treatment. The primary outcome was the implementation of appropriate osteoporosis management.</p> <p>Results</p> <p>101 patients were allocated to intervention and 100 to control. Mean age of participants was 71.9 ± 7.2 years and 94% were women. Pharmacological treatment (alendronate, risedronate, or raloxifene) for osteoporosis was increased by 29% compared to usual care (56% [29/52] vs. 27% [16/60]; relative risk [RR] 2.09, 95% confidence interval [CI] 1.29 to 3.40). More individuals in the intervention group were taking calcium (54% [54/101] vs. 20% [20/100]; RR 2.67, 95% CI 1.74 to 4.12) and vitamin D (33% [33/101] vs. 20% [20/100]; RR 1.63, 95% CI 1.01 to 2.65).</p> <p>Conclusions</p> <p>A multi-faceted community-based intervention improved management of osteoporosis in high risk patients compared with usual care.</p> <p>Trial Registration</p> <p>This trial has been registered with clinicaltrials.gov (ID: NCT00465387)</p

Comparative Analysis of Viral Gene Expression Programs during Poxvirus Infection: A Transcriptional Map of the Vaccinia and Monkeypox Genomes

Poxviruses engage in a complex and intricate dialogue with host cells as part of their strategy for replication. However, relatively little molecular detail is available with which to understand the mechanisms behind this dialogue.We designed a specialized microarray that contains probes specific to all predicted ORFs in the Monkeypox Zaire (MPXV) and Vaccinia Western Reserve (VACV) genomes, as well as >18,000 human genes, and used this tool to characterize MPXV and VACV gene expression responses in vitro during the course of primary infection of human monocytes, primary human fibroblasts and HeLa cells. The two viral transcriptomes show distinct features of temporal regulation and species-specific gene expression, and provide an early foundation for understanding global gene expression responses during poxvirus infection.The results provide a temporal map of the transcriptome of each virus during infection, enabling us to compare viral gene expression across species, and classify expression patterns of previously uncharacterized ORFs

Arable weed seeds as indicators of regional cereal provenance: a case study from Iron Age and Roman central-southern Britain

The ability to provenance crop remains from archaeological sites remains an outstanding research question in archaeology. Archaeobotanists have previously identified the movement of cereals on the basis of regional variations in the presence of cereal grain, chaff and weed seeds (the consumer–producer debate), and weed seeds indicative of certain soil types, principally at Danebury hillfort. Whilst the former approach has been heavily criticised over the last decade, the qualitative methods of the latter have not been evaluated. The first interregional trade in cereals in Britain is currently dated to the Iron Age hillfort societies of the mid 1st millennium bc. Several centuries later, the development of urban settlements in the Late Iron Age and Roman period resulted in populations reliant on food which was produced elsewhere. Using the case study of central-southern Britain, centred on the oppidum (large fortified settlement) and civitas capital of Silchester, this paper presents the first regional quantitative analysis of arable weed seeds in order to identify the origin of the cereals consumed there. Analysis of the weed seeds which were present with the fine sieve by-products of the glume wheat Triticum spelta (spelt) shows that the weed floras of samples from diverse geological areas can be separated on the basis of the soil requirements of individual taxa. A preliminary finding is that, rather than being supplied with cereals from the wider landscape of the chalk region of the Hampshire Downs, the crops were grown close to Late Iron Age Silchester. The method presented here requires further high quality samples to evaluate this conclusion and other instances of cereal movement in the past