A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is
Beneficial effects of napping or bright light exposure on cognitive performance have been reported in participants exposed to sleep loss. Nonetheless, few studies investigated the effect of these potential countermeasures against the temporary drop in performance observed in mid-afternoon, and even less so on cognitive flexibility, a crucial component of executive functions. This study investigated the impact of either an afternoon nap or bright light exposure on post-prandial alterations indoi:10.1371/journal.pone.0125359 pmid:26016658 pmcid:PMC4446306 fatcat:pb5pjef7nbgqpaoavk56fxen4m
more »... k switching performance in well-rested participants. Twenty-five healthy adults participated in two randomized experimental conditions, either wake versus nap (n=15), or bright light versus placebo (n=10). Participants were tested on a switching task three times (morning, post-lunch and late afternoon sessions). The interventions occurred prior to the post-lunch session. In the nap/wake condition, participants either stayed awake watching a 30-minute documentary or had the opportunity to take a nap for 30 minutes. In the bright light/placebo condition, participants watched a documentary under either bright blue light or dim orange light (placebo) for 30 minutes. The switch cost estimates cognitive flexibility and measures task-switching efficiency. Increased switch cost scores indicate higher difficulties to switch between tasks. In both control conditions (wake or placebo), accuracy switch-cost score increased post lunch. Both interventions (nap or bright light) elicited a decrease in accuracy switch-cost score post lunch, which was associated with diminished fatigue and decreased variability in vigilance. Additionally, there was a trend for a post-lunch benefit of bright light with a decreased latency switch-cost score. In the nap group, improvements in accuracy switch-cost score were associated with more NREM sleep stage N1. Thus, exposure to bright light during the post-lunch dip, a countermeasure easily applicable in daily life, results in similar beneficial effects as a short nap on performance in the cognitive flexibility domain with possible additional benefits on latency switch-cost scores.
Directed cell migration by contact guidance in aligned collagenous extracellular matrix (ECM) is a critical enabler of breast cancer dissemination. The mechanisms of this process are poorly understood, particularly in 3D, in part because of the lack of efficient methods to generate aligned collagen matrices. To address this technological gap, we propose a simple method to align collagen gels using guided cellular compaction. Our method yields highly aligned, acellular collagen constructs withdoi:10.1016/j.bpj.2017.01.007 pmid:28297639 pmcid:PMC5355487 fatcat:z3eogwo7sjczhg3qasypxlta4y
more »... edictable microstructural features, thus providing a controlled microenvironment for in vitro experiments. Quantifying cell behavior in these anisotropic constructs, we find that breast carcinoma cells are acutely sensitive to the direction and extent of collagen alignment. Further, live cell imaging and analysis of 3D cell migration reveals that alignment of collagen does not alter the total motility of breast cancer cells, but simply redirects their migration to produce largely one-dimensional movement. However, a profoundly enhanced motility in aligned collagen matrices is observed for the subpopulation of carcinoma cells with high tumor initiating and metastatic capacity, termed cancer stem cells (CSCs). Analysis of the biophysical determinants of cell migration show that nuclear deformation is not a critical factor associated with the observed increases in motility for CSCs. Rather, smaller cell size, a high degree of phenotypic plasticity, and increased protrusive activity emerge as vital facilitators of rapid, contactguided migration of CSCs in aligned 3D collagen matrices.
How can large-scale open online learning serve the professional learning needs of educators which are often highly localized? In this mixed-methods study, we examine this question through studying the learning experiences of participants in four massive open online courses (MOOCs) that we developed on educational change leadership (N = 1,712). We observed that educators were able to integrate their learning from the online courses across a variety of educational settings. We argue that a keydoi:10.3389/feduc.2022.899535 fatcat:yyjxskfxczahhkdatf4elbakai
more »... tor in this process was that the design of online courses was attentive to various levels in which participants processed and applied their learning. We therefore propose the "Content-Collaboration-Context Model" (C-C-C) as a design model for designing and researching open online learning experiences for professional learning settings where participants' work is highly localized. In analyzing learner experiences in our MOOCs, we apply this model to illustrate how individuals integrated the de-contextualized content of the online courses into their context-specific practices. We conclude with implications for the design and research on open online professional learning experiences.
The association between smoking and asthma remains unclear and has mostly been assessed in cross-sectional studies, with potential selection bias ("healthy smoker effect"). Aims: Using a longitudinal approach, the aims were to assess whether 1) childhood asthma modifies smoking initiation, 2) active smoking influences asthma incidence in adults and 3) active smoking among subjects with asthma influences the persistence of the disease or the 12-year evolution in lung function in children anddoi:10.1016/j.rmed.2011.07.005 pmid:21873041 fatcat:yhiejz4kq5d6zdixrnzjitdx6e
more »... ts. Methods: Subjects (513 children and 1190 adults) were recruited and followed-up for 12 years in the context of the EGEA study (Epidemiological study on the Genetics and Environment of Asthma). Results: Childhood asthma was not associated with a decreased probability of starting active smoking (Hazard Ratio, HR Z 0.96; 95% confidence interval (CI): 0.72, 1.27). Smoking at baseline was associated with a higher risk for asthma incidence in adulthood (HR Z 1.95, 95% CI: 1.00, 3.77). Among subjects with asthma, smoking was unrelated to lung function evolution; however, among children with moderate to severe asthma at inclusion, smoking tended to slow down the lung function growth (P Z 0.04). (L. Vignoud). a v a i l a b l e a t w w w . s c i e n c e d i r e c t . c o m j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / r m e d Respiratory Medicine (2011) 105, 1805e1814 0954-6111/$ -see front matter ª
Eliciting and interpreting students' ideas are essential skills in teaching, yet pre-service teachers (PSTs) rarely have adequate opportunities to develop these skills. In this study, we examine PSTs' patterns of discourse and perceived learning through engaging in an interactive digital simulation called Eliciting Learner Knowledge (ELK). ELK is a seven-minute, chat-based virtual role play between a PST playing a "teacher" and a PST playing a "student" where the goal is for the teacher to finddoi:10.3390/bs12090324 pmid:36135128 fatcat:hdl3ckrr2zfttlvdgc537o3jcm
more »... out what the student knows about a topic. ELK is designed to be a practice space where pre-service and in-service teachers can learn strategies for effectively eliciting their students' knowledge. We review the implementation of ELK in eight teacher education courses in math or science methods at six different universities and assess (a) patterns of interaction during ELK and (b) PSTs' perceptions of ELK and their learning from the simulation. Our findings suggest that PSTs engage in effective practices such as eliciting and probing more often than less effective practices such as evaluating and telling. Results suggest that PSTs gain experience in practicing talk moves and having empathy for students' perspectives through using ELK.
enrollment data, such as: type of recruitment event (print media, word of mouth, community talks, etc.), return on participant contact, and participant follow-through. Data was split by ethnicity and recruitment approach. Results: The total number of new potential participants reached was 2,235. Of that, 1058 (47.3%) were scheduled for a study visit; of those scheduled, 867 (81.9%) completed the study. When broken down by ethnicity, most Non-Hispanic Whites were recruited through: word of mouthdoi:10.1016/j.jalz.2019.06.1150 fatcat:p5ehdboetfhu7msel3pewikn6m
more »... (30.3%), print media (26.5%) and our referral program (17.0%). On the other hand, most Mexican Americans were recruited through: word of mouth (37.3%), community events/talks (25.6%) and non-paid local TV and newspaper (7.7%). Less fruitful efforts include: social media, health fairs and physician referrals. Conclusions: Recruiting elders into aging research involves varying types of recruitment techniques depending on the target population. Word of mouth was the most important overall recruitment strategy. Our data shows that recruiting elderly Mexican Americans requires a direct approach; community events/ talks in which our staff was present and interacting with attendees were highly effective. Non-Hispanic Whites responded mostly to an indirect approach: print media (brochures, postcards or paid newspaper advertisements). Overall our successful enrollment strategies and our acquired understanding of the ethnic differences in recruitment techniques can be used in the future to recruit more elderly minorities into research.
., 2004; Slama et al. 2008; Woodruff et al. 2009 ). Comparisons of findings across different geographic locations are hindered, in part, by differences in research designs. ... While in some places, mothers with higher SES live in less polluted areas (Woodruff et al. 2003) , in others, the opposite relationship holds (Slama et al. 2007) . ...doi:10.1289/ehp.1002725 pmid:21306972 pmcid:PMC3222970 fatcat:qfldexf6pra2xcgqycpvzagc6y
2011; Glinianaia et al. 2008; Gouveia et al. 2004; Ha et al. 2004; Jalaludin et al. 2007; Lepeule et al. 2010; Mannes et al. 2005; Morello-Frosch et al. 2010; Pesatori et al. 2008; Rich et al. 2009; Slama ...doi:10.1289/ehp.1205575 pmid:23384584 pmcid:PMC3621183 fatcat:4x3q5dybjjbgllqqxy3gmiuwqm
Tajima A newborn with combined pituitary hormone deficiency developing shock and sludge 1333 Imen Boussaid, Asma Boumiza, Ramzi Zemni, Elyes Chabchoub, Latifa Gueddah, Ines Slim and Foued Ben Hadj Slama ... Marzouki Serum progranulin levels in relation to insulin resistance in childhood obesity 1251 Valeria Calcaterra, Rachele De Giuseppe, Ginevra Biino, Melissa Mantelli, Sonia Marchini, Giulia Bendotti ...doi:10.1515/jpem-2017-frontmatter12 fatcat:btwqy6g2xrh4lenpqx5lrosao4
Journal of Pharmaceutical Sciences
Kelly Laboratory 100.00 17, No 4164 Rachel D. Shelton Laboratory 75.00 17, No. 4165 W. May Sisney Laboratory 40.00 17. No. 416¢ 4. G. DuMez Salaries 500.00 JOURNAL & ABSTRACTS 19 37 17, No. 4167 Wm. ... Slama | R u & As RAC 88.57 17, No. 4189 Edgar B. Starkey louURNAL & ABSTRA 11.80 7,N 4190 Marvin R. Thompson JOURNAL & Ap aC $+. 58 17, N 4191 E.G. Vanden Bosche JOUR u & ABSTRAC 74.30 l No. 4192 G. ...
Florida Bar Journal
3RD Ave Ste 100 Fort Lauderdale 33316-1154 jslama 9 krupnicklaw.com SLAMA, Robed John . 904/3464390 Robert J Slama Pa 3821 Hendricks Ave Jacksonville 32207-5303 rj5lamalaw9aol.com Fax: 904/346-4225 SLANDA ... 3944)400 3352 Water Oak Or Hollywood 33021-8430 5upem8tre9hotmail.com Fax: 954/986-0469 SKUTHAN, James Thomas . 407/6484338 80 N Hughey Ave Ste 417 Orlando 32801-2226 jim skuthan9fd.org SKV»SKY,Caren Rachel ...
MARTIN SLAMA Austrian Academy of Sciences SPRONK, RACHEL. Ambiguous pleasures: sexuality and middle class self-perceptions in Nairobi. xi, 310 pp., bibliogr. ...
MARTIN SLAMA Austrian Academy of Sciences SPRONK, RACHEL. Ambiguous pleasures: sexuality and middle class self-perceptions in Nairobi. xi, 310 pp., bibliogr. ...doi:10.1111/1467-9655.12058_25 fatcat:idpzyn5ilrfbvct7p77eja7mf4
MARTIN SLAMA Austrian Academy of Sciences SPRONK, RACHEL. Ambiguous pleasures: sexuality and middle class self-perceptions in Nairobi. xi, 310 pp., bibliogr. ...doi:10.1111/1467-9655.12058_26 fatcat:r3qwnyl25jasjegpizjx4xzle4
« Previous Showing results 1 — 15 out of 114 results