393 research outputs found
Addressing the Technology Gap in Counselor Education: Identification of Characteristics in Students that Affect Learning in College Classrooms
As advancements in technology continue to revolutionize the field of counseling, certain populations of students still encounter difficulties incorporating technology in the classroom. Non-traditional students, many who possesses years of professional experience, struggle academically due to a lack of technological expertise and knowledge. Low technological expertise potentially decreases students’ self-efficacy, enjoyment, and performance (Baturay & Bay, 2010). Consequently, it is imperative that counselor educators use a variety of strategies with non-traditional students struggling with technology. Thus, the purpose of this article is to propose guidelines encompassing self-efficacy, the evolution of technology and competencies required for assisting students in the classroom
Addressing the Technology Gap in Counselor Education: Identification of Characteristics in Students that Affect Learning in College Classrooms
As advancements in technology continue to revolutionize the field of counseling, certain populations of students still encounter difficulties incorporating technology in the classroom. Non-traditional students, many who possesses years of professional experience, struggle academically due to a lack of technological expertise and knowledge. Low technological expertise potentially decreases students’ self-efficacy, enjoyment, and performance (Baturay & Bay, 2010). Consequently, it is imperative that counselor educators use a variety of strategies with non-traditional students struggling with technology. Thus, the purpose of this article is to propose guidelines encompassing self-efficacy, the evolution of technology and competencies required for assisting students in the classroom
High-excitation OH and H_2O lines in Markarian 231: the molecular signatures of compact far-infrared continuum sources
The ISO/LWS far-infrared spectrum of the ultraluminous galaxy Mkn 231 shows
OH and H_2O lines in absorption from energy levels up to 300 K above the ground
state, and emission in the [O I] 63 micron and [C II] 158 micron lines. Our
analysis shows that OH and H_2O are radiatively pumped by the far-infrared
continuum emission of the galaxy. The absorptions in the high-excitation lines
require high far-infrared radiation densities, allowing us to constrain the
properties of the underlying continuum source. The bulk of the far-infrared
continuum arises from a warm (T_dust=70-100 K), optically thick
(tau_100micron=1-2) medium of effective diameter 200-400 pc. In our best-fit
model of total luminosity L_IR, the observed OH and H2O high-lying lines arise
from a luminous (L/L_IR~0.56) region with radius ~100 pc. The high surface
brightness of this component suggests that its infrared emission is dominated
by the AGN. The derived column densities N(OH)>~10^{17} cm^{-2} and
N(H_2O)>~6x10^{16} cm^{-2} may indicate XDR chemistry, although significant
starburst chemistry cannot be ruled out. The lower-lying OH, [C II] 158 micron,
and [O I] 63 micron lines arise from a more extended (~350 pc) starburst
region. We show that the [C II] deficit in Mkn 231 is compatible with a high
average abundance of C+ because of an extreme overall luminosity to gas mass
ratio. Therefore, a [C II] deficit may indicate a significant contribution to
the luminosity by an AGN, and/or by extremely efficient star formation.Comment: 16 pages, 6 figures, accepted for publication in The Astrophysical
Journa
Snow crab (Chionoecetes opilio) hemocytes and hepatopancreas transcriptomes: identification, validation, and application of immune-relevant biomarkers of exposure to noise
The snow crab (Chionoecetes opilio) fishery off the east coast of Newfoundland and Labrador, Canada, has been impacted by annual seismic oil and gas surveying in recent decades, and commercial crab harvesters are concerned that it could potentially affect this resource. A laboratory study was performed to investigate the effects of chronic noise exposure on the transcriptomes of snow crab hemocytes and hepatopancreas, which are important in immunity, metabolism and response to environmental stress. Snow crab were held in replicate control or experimental tanks; on alternating days, the experimental tanks were exposed to noise from an underwater speaker which played a recording of a seismic airgun firing every 10 sec in a continuous loop for ~ 22 weeks (chronic noise). RNA sequencing was used to identify candidate noise-responsive molecular biomarkers in both hemocytes and hepatopancreas. The quantified transcripts of individuals (i.e. n=10 from each of the four groups) were compared using DESeq2, identifying over 300 noise-responsive transcripts in each cell/tissue type. Real-time quantitative polymerase chain reaction (qPCR) assays were designed and run for 61 of these transcripts with significant BLASTx hits. One transcript (rgs2) was significantly (p < 0.05) higher expressed in both hemocytes and hepatopancreas in response to noise; five and seven other transcripts were either significant or showed a non-significant trend of differential expression (0.05 < p ≤ 0.1) in hemocytes (e.g. cfb upregulated, sacs and myof downregulated) and hepatopancreas (e.g. gpx3 and atf3 upregulated, sult1c4 downregulated), respectively. To further investigate the performance and utility of these candidate biomarkers in the field, expression levels of 25 selected transcripts were then examined in the hepatopancreas of snow crab that had been subjected to 2D and 3D seismic surveying using both qPCR and multivariate statistical analyses. Overall, few of these biomarkers showed consistent results in field-collected snow crab, highlighting the need to combine lab and field-based studies to fully evaluate the utility of biomarkers. Nonetheless, our study still identified noise-responsive biomarkers in both settings (including stress and immune relevant genes), providing valuable information for understanding the impact of ocean noise on snow crab physiology and health
Neurophysiology of Avian Sleep: Comparing Natural Sleep and Isoflurane Anesthesia
Propagating slow-waves in electroencephalogram (EEG) or local field potential (LFP) recordings occur during non-rapid eye-movement (NREM) sleep in both mammals and birds. Moreover, in both, input from the thalamus is thought to contribute to the genesis of NREM sleep slow-waves. Interestingly, the general features of slow-waves are also found under isoflurane anesthesia. However, it is unclear to what extent these slow-waves reflect the same processes as those giving rise to NREM sleep slow-waves. Similar slow-wave spatio-temporal properties during NREM sleep and isoflurane anesthesia would suggest that both types of slow-waves are based on related processes. We used a 32-channel silicon probe connected to a transmitter to make intra-cortical recordings of the visual hyperpallium in naturally sleeping and isoflurane anesthetized pigeons (Columba livia) using a within-bird design. Under anesthesia, the amplitude of LFP slow-waves was higher when compared to NREM sleep. Spectral power density across all frequencies (1.5–100 Hz) was also elevated. In addition, slow-wave coherence between electrode sites was higher under anesthesia, indicating higher synchrony when compared to NREM sleep. Nonetheless, the spatial distribution of slow-waves under anesthesia was more comparable to NREM sleep than to wake or REM sleep. Similar to NREM sleep, slow-wave propagation under anesthesia mainly occurred in the thalamic input layers of the hyperpallium, regions which also showed the greatest slow-wave power during both recording conditions. This suggests that the thalamus could be involved in the genesis of slow-waves under both conditions. Taken together, although slow-waves under isoflurane anesthesia are stronger, they share spatio-temporal activity characteristics with slow-waves during NREM sleep
What Does Soil-Transmitted Helminth Elimination Look Like? Results From a Targeted Molecular Detection Survey in Japan
Background: Japan is one of the few countries believed to have eliminated soil-transmitted helminths (STHs). In 1949, the national prevalence of Ascaris lumbricoides was 62.9%, which decreased to 0.6% in 1973 due to improvements in infrastructure, socioeconomic status, and the implementation of national STH control measures. The Parasitosis Prevention Law ended in 1994 and population-level screening ceased in Japan; therefore, current transmission status of STH in Japan is not well characterized. Sporadic cases of STH infections continue to be reported, raising the possibility of a larger-scale recrudescence of STH infections. Given that traditional microscopic detection methods are not sensitive to low-intensity STH infections, we conducted targeted prevalence surveys using sensitive PCR-based assays to evaluate the current STH-transmission status and to describe epidemiological characteristics of areas of Japan believed to have achieved historical elimination of STHs. Methods: Stool samples were collected from 682 preschool- and school-aged children from six localities of Japan with previously high prevalence of STH. Caregivers of participants completed a questionnaire to ascertain access to water, sanitation and hygiene (WASH), and potential exposures to environmental contamination. For fecal testing, multi-parallel real-time PCR assays were used to detect infections of Ascaris lumbricoides, Necator americanus, Ancylostoma duodenale and Trichuris trichiura. Results: Among the 682 children, no positive samples were identified, and participants reported high standards of WASH. Conclusions: To our knowledge, this is the first STH-surveillance study in Japan to use sensitive molecular techniques for STH detection. The results suggest that recrudescence of STH infections has not occurred, and that declines in prevalence have been sustained in the sampled areas. These findings suggest that reductions in prevalence below the elimination thresholds, suggestive of transmission interruption, are possible. Additionally, this study provides circumstantial evidence that multi-parallel real-time PCR methods are applicable for evaluating elimination status in areas where STH prevalence is extremely low.[Figure not available: see fulltext.
Carnegie Supernova Project-II: Extending the Near-Infrared Hubble Diagram for Type Ia Supernovae to
The Carnegie Supernova Project-II (CSP-II) was an NSF-funded, four-year
program to obtain optical and near-infrared observations of a "Cosmology"
sample of Type Ia supernovae located in the smooth Hubble flow (). Light curves were also obtained of a "Physics"
sample composed of 90 nearby Type Ia supernovae at selected for
near-infrared spectroscopic time-series observations. The primary emphasis of
the CSP-II is to use the combination of optical and near-infrared photometry to
achieve a distance precision of better than 5%. In this paper, details of the
supernova sample, the observational strategy, and the characteristics of the
photometric data are provided. In a companion paper, the near-infrared
spectroscopy component of the project is presented.Comment: 43 pages, 10 figures, accepted for publication in PAS
2015 State of the Commonwealth Report
This is the first State of the Commonwealth Report. It is jointly sponsored by the Strome College of Business at Old Dominion University and the Virginia Chamber Foundation. While the report represents the work of many people connected in various ways to the university, it does not constitute an official viewpoint of Old Dominion or it\u27s president, John R. Broderick. Similarly, it does not represent the views of the Virginia Chamber of Commerce or it\u27s president and CEO, Barry DuVal.
The goal of the report is to stimulate thought and discussion that ultimately will make Virginia an even better place to live, work, and do business. We are proud of the Commonwealth\u27s many successes, but realize that it is possible to improve our performance. In order to do so, we must have accurate information about where we are and a sound understanding of the policy options open to us.https://digitalcommons.odu.edu/economics_books/1020/thumbnail.jp
Introductory programming: a systematic literature review
As computing becomes a mainstream discipline embedded in the school curriculum and acts as an enabler for an increasing range of academic disciplines in higher education, the literature on introductory programming is growing. Although there have been several reviews that focus on specific aspects of introductory programming, there has been no broad overview of the literature exploring recent trends across the breadth of introductory programming.
This paper is the report of an ITiCSE working group that conducted a systematic review in order to gain an overview of the introductory programming literature. Partitioning the literature into papers addressing the student, teaching, the curriculum, and assessment, we explore trends, highlight advances in knowledge over the past 15 years, and indicate possible directions for future research
Patient-reported GP health assessments rather than individual cardiovascular risk burden are associated with the engagement in lifestyle changes: Population-based survey in South Australia
© 2019 The Author(s).
Background: Little is known about whether a more comprehensive health assessment, performed by a general practitioner (GP) during a clinical encounter, could influence patients' lifestyle. We aimed to investigate whether health assessments, performed by GPs, are more important than the presence of cardiovascular disease (CVD) or cardiometabolic risk factors (obesity, diabetes, hypertension, dyslipidaemia) for engagement in lifestyle change. Methods: Cross-sectional, population-based survey conducted in South Australia (September-December 2017) using face-To-face interviews and self-reported data of 2977 individuals aged 15+ years. The main outcome was engagement in four lifestyle changes: 1) increasing fruit/vegetable intake, 2) increasing physical activity level, 3) reducing alcohol consumption, and 4) attempts to stop smoking. Health assessments performed by a GP in the last 12 months included clinical/laboratory investigations (weight/waist circumference, blood pressure, glucose levels, lipid levels) and questions about lifestyle/wellbeing (current diet, physical activity, smoking status, alcohol intake, mental health, sleeping problems). Results were restricted to individuals aged 35+ years because of the low prevalence of CVD or their risk factors among younger participants. Logistic regression was used in all associations, adjusted for sociodemographic, lifestyle, mental health, and clinical variables. Results: Of the 2384 investigated adults (mean age 57.3 ± 13.9 years; 51.9% females), 10.2% had CVD and 49.1% at least one cardiometabolic risk factor. Clinical/laboratory assessments performed by the GP were 2-3 times more frequent than assessments of lifestyle, mental health status, or sleeping problems, especially among those with CVD. Individuals with CVD or a cardiometabolic risk factor were no more likely to be increasing their fruit/vegetable consumption (33.6%), physical activity level (40.9%), reducing alcohol consumption (31.1%), or trying to quit smoking (34.0%) than 'healthy' participants. However, lifestyle changes were between 30 and 100% more likely when GPs performed three or more health assessments (either clinical/laboratory or questions about lifestyle/wellbeing) than when individuals did not visit the GP or when GPs performed no any assessment during these clinical encounters (p < 0.05 in all cases). Conclusion: More frequent and comprehensive CVD-related assessments by GPs were more important in promoting a healthier lifestyle than the presence of CVD or cardiometabolic risk factors by themselves
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