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https://www.readbyqxmd.com/read/27922727/measuring-learning-gain-comparing-anatomy-drawing-screencasts-and-paper-based-resources
#1
James D Pickering
The use of technology-enhanced learning (TEL) resources is now a common tool across a variety of healthcare programs. Despite this popular approach to curriculum delivery there remains a paucity in empirical evidence that quantifies the change in learning gain. The aim of the study was to measure the changes in learning gain observed with anatomy drawing screencasts in comparison to a traditional paper-based resource. Learning gain is a widely used term to describe the tangible changes in learning outcomes that have been achieved after a specific intervention...
December 6, 2016: Anatomical Sciences Education
https://www.readbyqxmd.com/read/27921349/repeated-trauma-exposure-does-not-impair-distress-reduction-during-imaginal-exposure-for-posttraumatic-stress-disorder
#2
Alissa B Jerud, Frank J Farach, Michele Bedard-Gilligan, Hillary Smith, Lori A Zoellner, Norah C Feeny
BACKGROUND: Based on experimental research on threat extinction, individuals exposed to repeated traumatic events may have impaired outcome in exposure therapy compared to those who have experienced a single trauma (Lang & McTeague, ). This study examined whether repeated trauma exposure predicts smaller changes in self-reported distress during imaginal exposure and worse outcomes for patients with posttraumatic stress disorder (PTSD). METHODS: Adults (N = 116) with chronic PTSD received up to 10 sessions of prolonged exposure (PE) therapy...
December 6, 2016: Depression and Anxiety
https://www.readbyqxmd.com/read/27920294/effects-of-increasing-the-affinity-of-card-for-rna-polymerase-on-mycobacterium-tuberculosis-growth-rrna-transcription-and-virulence
#3
Ashley L Garner, Jayan Rammohan, Jeremy P Huynh, Lucas M Onder, James Chen, Brian Bae, Drake Jensen, Leslie A Weiss, Ana Ruiz Manzano, Seth A Darst, Elizabeth A Campbell, Bryce E Nickels, Eric A Galburt, Christina L Stallings
: CarD is an essential RNA polymerase (RNAP) interacting protein in Mycobacterium tuberculosis (Mtb) that stimulates formation of RNAP-promoter open complexes. CarD plays a complex role in Mtb growth and virulence that is not fully understood. Therefore, to gain further insight into the role of CarD in Mtb growth and virulence we determined the effect of increasing the affinity of CarD for RNAP. Using site-directed mutagenesis guided by crystal structures of CarD bound to RNAP, we identified amino acid substitutions that increase the affinity of CarD for RNAP...
December 5, 2016: Journal of Bacteriology
https://www.readbyqxmd.com/read/27918670/combined-plyometric-strength-training-improves-ice-hockey-players-on-ice-sprint
#4
Torstein E Dæhlin, Ole C Haugen, Simen Haugerud, Ivana Hollan, Truls Raastad, Bent R Rønnestad
: Combined plyometric and strength training have previously been suggested as a strategy to improve skating performance in ice hockey players. However, the effects of combined plyometric and strength training has not been previously been compared to the effects of strength training only. PURPOSE: To compare the effects of combined plyometric and strength training on ice hockey players' skating sprint performance with strength training only. METHODS: Eighteen participants were randomly assigned to two groups that completed 5 strength-training sessions per week for 8 weeks...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27918465/peripheral-inflammatory-parameters-in-late-life-depression-a-systematic-review
#5
REVIEW
Mónica Martínez-Cengotitabengoa, Lucía Carrascón, John T O'Brien, María-José Díaz-Gutiérrez, Cristina Bermúdez-Ampudia, Kenji Sanada, Marta Arrasate, Ana González-Pinto
Depressive disorders appear relatively frequently in older patients, and therefore represent an important disease burden worldwide. Given the high levels of inflammatory parameters found in depressed elderly patients, the "inflammaging" hypothesis is gaining strength. In this systematic review, we summarize current evidence regarding the relationship between inflammatory parameters and late-life depression, with a unique focus on longitudinal studies to guarantee temporality. According to the data summarized in this review, the levels of some proinflammatory parameters-especially interleukin (IL)-8, IL-6, and tumor necrosis factor (TNF)-α-could serve as biomarkers for the future development of depressive symptoms in elderly patients...
December 2, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27918284/context-specificity-of-both-acquisition-and-extinction-of-a-pavlovian-conditioned-response
#6
Sarah Starosta, Metin Uengoer, Isabelle Bartetzko, Sara Lucke, Onur Güntürkün, Maik C Stüttgen
It is widely held that the extinction of a conditioned response is more context specific than its initial acquisition. One proposed explanation is that context serves to disambiguate the meaning of a stimulus. Using a procedure that equated the learning histories of the contexts, we show that the memory of an appetitive Pavlovian association can be highly context specific despite being unambiguous. This result is inconsistent with predictions of the Rescorla-Wagner model of learning but in line with configural accounts of contextual control of behavior...
November 2016: Learning & Memory
https://www.readbyqxmd.com/read/27916799/pre-sleep-protein-ingestion-to-improve-the-skeletal-muscle-adaptive-response-to-exercise-training
#7
REVIEW
Jorn Trommelen, Luc J C van Loon
Protein ingestion following resistance-type exercise stimulates muscle protein synthesis rates, and enhances the skeletal muscle adaptive response to prolonged resistance-type exercise training. As the adaptive response to a single bout of resistance exercise extends well beyond the first couple of hours of post-exercise recovery, recent studies have begun to investigate the impact of the timing and distribution of protein ingestion during more prolonged recovery periods. Recent work has shown that overnight muscle protein synthesis rates are restricted by the level of amino acid availability...
November 28, 2016: Nutrients
https://www.readbyqxmd.com/read/27911036/properties-of-embryoid-bodies
#8
REVIEW
Joshua M Brickman, Palle Serup
Embryoid bodies (EBs) have been popular in vitro differentiation models for pluripotent stem cells for more than five decades. Initially, defined as aggregates formed by embryonal carcinoma cells, EBs gained more prominence after the derivation of karyotypically normal embryonic stem cells from early mouse blastocysts. In many cases, formation of EBs constitutes an important initial step in directed differentiation protocols aimed at generated specific cell types from undifferentiated stem cells. Indeed state-of-the-art protocols for directed differentiation of cardiomyocytes still rely on this initial EB step...
December 2, 2016: Wiley Interdisciplinary Reviews. Developmental Biology
https://www.readbyqxmd.com/read/27910255/dysphagia-is-associated-with-functional-decline-during-acute-care-hospitalization-of-older-patients
#9
Haruyo Matsuo, Yoshihiro Yoshimura, Naoki Ishizaki, Tsuyoshi Ueno
AIM: Physical function is considered to be associated with dysphagia: however, there is little data regarding the association between dysphagia and functional decline during hospitalization among older patients. The aim of the present study was to investigate the prevalence of dysphagia, and the association between dysphagia and functional status during hospitalization in older acute-care patients. METHODS: A total of 103 older patients without present or prior history of diseases that could directly impair swallowing and cause dysphagia (45 men and 58 women; mean age 80...
December 1, 2016: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/27909678/bridge-tenodesis-a-secure-fixation-technique-for-biceps-long-head-tendinopathy-during-arthroscopic-rotator-cuff-repair-using-a-suture-bridge-technique
#10
Jin-Young Park, Jae-Hyung Lee, Kyung-Soo Oh, Seok-Won Chung, Jin-Young Bang, Young-Min Noh
Tendinopathy of the long head of the biceps is often found as an intra-articular pathology in the glenohumeral joint. Because long head of the biceps lesions are common, surgical intervention to properly manage the long head of the biceps has become an important issue. Both tenodesis and tenotomy have been shown to provide benefits in biceps long head tendinopathy. But because of concerns about muscle power reduction, cramping, and "Popeye's deformity," which may result from biceps tenotomy, biceps tenodesis is a good option for treating biceps lesions...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27908012/pt-symmetric-couplers-with-competing-cubic-quintic-nonlinearities
#11
Gennadiy Burlak, Salomon Garcia-Paredes, Boris A Malomed
We introduce a one-dimensional model of the parity-time ( PT)-symmetric coupler, with mutually balanced linear gain and loss acting in the two cores, and nonlinearity represented by the combination of self-focusing cubic and defocusing quintic terms in each core. The system may be realized in optical waveguides, in the spatial and temporal domains alike. Stationary solutions for PT-symmetric solitons in the systems are tantamount to their counterparts in the ordinary coupler with the cubic-quintic nonlinearity, where the spontaneous symmetry breaking of solitons is accounted for by bifurcation loops...
November 2016: Chaos
https://www.readbyqxmd.com/read/27906582/fiat-deletion-increases-bone-mass-but-does-not-prevent-high-fat-diet-induced-metabolic-complications
#12
Bahareh Hekmatnejad, Vionnie W C Yu, William Addison, Vice Mandic, Martin Pellicelli, Alice Arabian, René St-Arnaud
FIAT (Factor Inhibiting ATF4-mediated Transcription) interacts with ATF4 to repress its transcriptional activity. We performed a phenotypic analysis of Fiat-deficient male mice (Fiat(-/Y)) at 8 and 16 weeks of age. Fiat(-/Y) mice appeared normal at birth and weight gain was comparable between genotypes. μCT analysis of proximal femur demonstrated 46% and 13% age-dependent increases in trabecular bone volume and thickness, respectively, in Fiat(-/Y) mice. Cortical bone measurements at the femoral midshaft revealed a significant increase in cortical thickness in older Fiat(-/Y) mice...
December 1, 2016: Endocrinology
https://www.readbyqxmd.com/read/27906369/power-coupling-between-gain-guided-index-antiguided-planar-waveguides
#13
Chih-Hsien Lai, Chang-I Hsieh
Power coupling between two gain-guided index-antiguided (GGIAG) planar waveguides is numerically investigated. The strength of coupling is found to vary periodically with the gap between the two waveguide cores, owing to the Fabry-Perot-like behavior of the gap. Moreover, the coupling length at which one waveguide has the minimum power and the coupling length at which another waveguide obtains the maximum power are different. Further investigation reveals that such a difference is attributed to the gain provided in the low-index cores...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906050/the-sh3-and-cysteine-rich-domain-3-stac3-gene-is-important-to-growth-fiber-composition-and-calcium-release-from-the-sarcoplasmic-reticulum-in-postnatal-skeletal-muscle
#14
Xiaofei Cong, Jonathan Doering, Davi A G Mazala, Eva R Chin, Robert W Grange, Honglin Jiang
BACKGROUND: The SH3 and cysteine-rich domain 3 (Stac3) gene is specifically expressed in the skeletal muscle. Stac3 knockout mice die perinatally. In this study, we determined the potential role of Stac3 in postnatal skeletal muscle growth, fiber composition, and contraction by generating conditional Stac3 knockout mice. METHODS: We disrupted the Stac3 gene in 4-week-old male mice using the Flp-FRT and tamoxifen-inducible Cre-loxP systems. RESULTS: RT-qPCR and western blotting analyses of the limb muscles of target mice indicated that nearly all Stac3 mRNA and more than 70 % of STAC3 protein were deleted 4 weeks after tamoxifen injection...
April 11, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27904890/using-signal-amplification-by-reversible-exchange-sabre-to-hyperpolarise-119-sn-and-29-si-nmr-nuclei
#15
Alexandra M Olaru, Alister Burt, Peter J Rayner, Sam J Hart, Adrian C Whitwood, Gary G R Green, Simon B Duckett
The hyperpolarisation of the (119)Sn and (29)Si nuclei in 5-(tributylstannyl)pyrimidine (ASn) and 5-(trimethylsilyl)pyrimidine (BSi) is achieved through their reaction with [IrCl(COD)(IMes)] (1a) or [IrCl(COD)(SIMes)] (1b) and parahydrogen via the SABRE process. 1a exhibits superior activity in both cases. The two inequivalent pyrimidine proton environments of ASn readily yielded signal enhancements totalling ∼2300-fold in its (1)H NMR spectrum at a field strength of 9.4 T, with the corresponding (119)Sn signal being 700 times stronger than normal...
December 1, 2016: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/27903680/herpes-simplex-virus-specific-t-cell-response-in-a-cohort-with-primary-genital-infection-correlates-inversely-with-frequency-of-subsequent-recurrences
#16
Elisabeth Franzen-Röhl, Danika Schepis, Fredrik Atterfelt, Kristina Franck, Arne Wikström, Jan-Åke Liljeqvist, Tomas Bergström, Elisabeth Aurelius, Klas Kärre, Louise Berg, Hans Gaines
OBJECTIVES: During the last decades, a changing epidemiological pattern of genital herpes simplex virus (HSV) infection has emerged. Primary infection is now caused as often by HSV-1 as by HSV-2. Once established, HSV can be reactivated leading to recurrent mucocutaneous lesions as well as meningitis. Why some otherwise immune-competent individuals experience severe and frequent recurrences is not known, and the immunological mechanism underlying recurrent symptomatic HSV infection is not fully understood...
November 30, 2016: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/27902562/enhancing-themes-and-strengths-assessment-leveraging-academic-led-qualitative-inquiry-in-community-health-assessment-to-uncover-roots-of-community-health-inequities
#17
Jennifer Hebert-Beirne, Jennifer K Felner, Yvette Castañeda, Sheri Cohen
CONTEXT: Rigorous qualitative research can enhance local health departments' efforts to gain a deeper insight into residents' perceived community health inequities necessary for productive community health assessments (CHAs) and community health improvement plans (CHIPs). OBJECTIVE: The Chicago Department of Public Health and the Partnership for Healthy Chicago used the National Association of County & City Health Officials' Mobilizing for Action through Planning and Partnerships (MAPP) model to conduct its CHA/CHIP, Healthy Chicago 2...
November 28, 2016: Journal of Public Health Management and Practice: JPHMP
https://www.readbyqxmd.com/read/27896698/atmospheric-pressure-ionization-using-a-high-voltage-target-compared-to-electrospray-ionization
#18
Arnaud Lubin, Steve Bajic, Deirdre Cabooter, Patrick Augustijns, Filip Cuyckens
A new atmospheric pressure ionization (API) source, viz. UniSpray, was evaluated for mass spectrometry (MS) analysis of pharmaceutical compounds by head-to-head comparison with electrospray ionization (ESI) on the same high-resolution MS system. The atmospheric pressure ionization source is composed of a grounded nebulizer spraying onto a high voltage, cylindrical stainless steel target. Molecules are ionized in a similar fashion to electrospray ionization, predominantly producing protonated or deprotonated species...
November 28, 2016: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/27894941/one-year-of-abaloparatide-a-selective-peptide-activator-of-the-pth1-receptor-increased-bone-mass-and-strength-in-ovariectomized-rats
#19
Aurore Varela, Luc Chouinard, Elisabeth Lesage, Robert Guldberg, Susan Y Smith, Paul J Kostenuik, Gary Hattersley
Abaloparatide is a novel 34 amino acid peptide selected to be a potent and selective activator of the parathyroid hormone receptor 1 (PTHR1) signaling pathway. The effects of 12months of abaloparatide treatment on bone mass, bone strength and bone quality was assessed in osteopenic ovariectomized (OVX) rats. SD rats were subjected to OVX or sham surgery at 6months of age and left untreated for 3months to allow OVX-induced bone loss. Eighteen OVX rats were sacrificed after this bone depletion period, and the remaining OVX rats received daily s...
November 25, 2016: Bone
https://www.readbyqxmd.com/read/27889273/is-subscapularis-recruited-in-a-similar-manner-during-shoulder-internal-rotation-exercises-and-belly-press-and-lift-off-tests
#20
Karen A Ginn, Darren Reed, Chelsea Jones, Anthony Downes, Ian Cathers, Mark Halaki
OBJECTIVES: Although the belly press and lift off tests are recommended to assess subscapularis function, shoulder internal rotation (IR) exercises performed in other shoulder positions are more commonly used to restore subscapularis function. It is not known if shoulder IR exercises specifically activate subscapularis to the same degree as the lift off and belly press tests, and thus have the potential to effect subscapularis strength gains. Therefore, the aim was to compare subscapularis activation levels with those of other shoulder internal rotator muscles during the belly press and lift off tests and shoulder IR exercise positions...
November 17, 2016: Journal of Science and Medicine in Sport
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