7 research outputs found
Creative Learning During the COVID-19 Pandemic
Creativity is the ability to produce or develop original work or ideas (APA Dictionary of Psychology, n.d.). Since creativity is a highly prized quality in virtually all aspects of life in the United States (Spencer, 2019), from the professional setting and social circles to leisure activities and daily chores, Yesit is important to foster creative learning environments for children and young adults. The purpose of this study, Creative Learning During the COVID-19 Pandemic, is to examine Binghamton University studentsâ self-perceived creativity levels in various types of learning environments during the pandemic. An online Qualtrics survey of forty-two questions was designed using relevant items from the questionnaire, KEYS: Assessing the Climate for Creativity (Amabile, 1996), along with questions geared to obtain demographic information. We hypothesize that undergraduate students who have an educational environment closest to an in-person class, whether that be all in-person or hybrid learning, have a better view towards their self-perceived creativity over students who have all online classes. The implications behind examining the potential repercussions to young adultsâ creativity during the transitory period of undergraduate education, especially in the midst of a global pandemic, includes gaining insight into the positive and negative outcomes different COVID-19 learning environments have on students.https://orb.binghamton.edu/research_days_posters_2021/1045/thumbnail.jp
Documenting Progress: Hand Therapy Treatment Shift From Biomechanical to Occupational Adaptation
The investment of time and self to develop therapeutic relationships with clients appears incongruent with todayâs time-constrained health care system, yet bridging the gap of these incongruencies is the challenge therapists face to provide high-quality, client-centered, occupation-based treatment. This case report illustrates a shift in approach from biomechanical to occupational adaptation (OA) in an orthopedic outpatient clinic. The progress of a client with lupus-related arthritis who was 6 days postsurgery is documented. The intervention initially used a biomechanical frame of reference, but when little progress had been made at 10 weeks after surgery, a shift was made to the more client-centered OA approach. The Canadian Occupational Performance Measure was administered, and an OA approach was initiated. On reassessment, clinically important improvements were documented in all functional tasks addressed. An OA approach provides the bridge between the application of clinical expertise, client-centered, occupation-based therapy and the time constraints placed by payer sources
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RNA targeting and cleavage by the type III-Dv CRISPR effector complex.
CRISPR-Cas are adaptive immune systems in bacteria and archaea that utilize CRISPR RNA-guided surveillance complexes to target complementary RNA or DNA for destruction1-5. Target RNA cleavage at regular intervals is characteristic of type III effector complexes6-8. Here, we determine the structures of the Synechocystis type III-Dv complex, an apparent evolutionary intermediate from multi-protein to single-protein type III effectors9,10, in pre- and post-cleavage states. The structures show how multi-subunit fusion proteins in the effector are tethered together in an unusual arrangement to assemble into an active and programmable RNA endonuclease and how the effector utilizes a distinct mechanism for target RNA seeding from other type III effectors. Using structural, biochemical, and quantum/classical molecular dynamics simulation, we study the structure and dynamics of the three catalytic sites, where a 2-OH of the ribose on the target RNA acts as a nucleophile for in line self-cleavage of the upstream scissile phosphate. Strikingly, the arrangement at the catalytic residues of most type III complexes resembles the active site of ribozymes, including the hammerhead, pistol, and Varkud satellite ribozymes. Our work provides detailed molecular insight into the mechanisms of RNA targeting and cleavage by an important intermediate in the evolution of type III effector complexes
RNA targeting and cleavage by the type III-Dv CRISPR effector complex
The model structures of the Synechocystis type III-Dv complex, an apparent evolutionary intermediate from multi-protein to single-protein type III effectors.</p
Onset and window of SARS-CoV-2 infectiousness and temporal correlation with symptom onset: a prospective, longitudinal, community cohort study
Background
Knowledge of the window of SARS-CoV-2 infectiousness is crucial in developing policies to curb transmission. Mathematical modelling based on scarce empirical evidence and key assumptions has driven isolation and testing policy, but real-world data are needed. We aimed to characterise infectiousness across the full course of infection in a real-world community setting.
Methods
The Assessment of Transmission and Contagiousness of COVID-19 in Contacts (ATACCC) study was a UK prospective, longitudinal, community cohort of contacts of newly diagnosed, PCR-confirmed SARS-CoV-2 index cases. Household and non-household exposed contacts aged 5 years or older were eligible for recruitment if they could provide informed consent and agree to self-swabbing of the upper respiratory tract. The primary objective was to define the window of SARS-CoV-2 infectiousness and its temporal correlation with symptom onset. We quantified viral RNA load by RT-PCR and infectious viral shedding by enumerating cultivable virus daily across the course of infection. Participants completed a daily diary to track the emergence of symptoms. Outcomes were assessed with empirical data and a phenomenological Bayesian hierarchical model.
Findings
Between Sept 13, 2020, and March 31, 2021, we enrolled 393 contacts from 327 households (the SARS-CoV-2 pre-alpha and alpha variant waves); and between May 24, 2021, and Oct 28, 2021, we enrolled 345 contacts from 215 households (the delta variant wave). 173 of these 738 contacts were PCR positive for more than one timepoint, 57 of which were at the start of infection and comprised the final study population. The onset and end of infectious viral shedding were captured in 42 cases and the median duration of infectiousness was 5 (IQR 3â7) days. Although 24 (63%) of 38 cases had PCR-detectable virus before symptom onset, only seven (20%) of 35 shed infectious virus presymptomatically. Symptom onset was a median of 3 days before both peak viral RNA and peak infectious viral load (viral RNA IQR 3â5 days, n=38; plaque-forming units IQR 3â6 days, n=35). Notably, 22 (65%) of 34 cases and eight (24%) of 34 cases continued to shed infectious virus 5 days and 7 days post-symptom onset, respectively (survival probabilities 67% and 35%). Correlation of lateral flow device (LFD) results with infectious viral shedding was poor during the viral growth phase (sensitivity 67% [95% CI 59â75]), but high during the decline phase (92% [86â96]). Infectious virus kinetic modelling suggested that the initial rate of viral replication determines the course of infection and infectiousness.
Interpretation
Less than a quarter of COVID-19 cases shed infectious virus before symptom onset; under a crude 5-day self-isolation period from symptom onset, two-thirds of cases released into the community would still be infectious, but with reduced infectious viral shedding. Our findings support a role for LFDs to safely accelerate deisolation but not for early diagnosis, unless used daily. These high-resolution, community-based data provide evidence to inform infection control guidance.
Funding
National Institute for Health and Care Research