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https://www.readbyqxmd.com/read/28102968/thoracic-ultrasound-recognition-of-competence-a-position-paper-of-the-thoracic-society-of-australia-and-new-zealand
#1
Jonathan P Williamson, Scott H Twaddell, Y C Gary Lee, Matthew Salamonsen, Mark Hew, David Fielding, Phan Nguyen, Daniel Steinfort, Peter Hopkins, Nicola Smith, Christopher Grainge
The ability to perform bedside thoracic ultrasound is increasingly recognized as an essential skill for thoracic clinicians, extending the clinical examination and aiding diagnostic and therapeutic procedures. Thoracic ultrasound reduces complications and increases success rates when used prior to thoracentesis or intercostal chest tube insertion. It is increasingly difficult to defend performing these procedures without real or near-real time image guidance. To assist thoracic physicians and others achieve and demonstrate thoracic ultrasound competence, the Interventional Pulmonology Special Interest Group (IP-SIG) of the Thoracic Society of Australia and New Zealand (TSANZ) has developed a new pathway with four components: (i) completion of an approved thoracic ultrasound theory and hands-on teaching course...
February 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28102845/h19-let-7-lin28-reciprocal-negative-regulatory-circuit-promotes-breast-cancer-stem-cell-maintenance
#2
Fei Peng, Ting-Ting Li, Kai-Li Wang, Guo-Qing Xiao, Ju-Hong Wang, Hai-Dong Zhao, Zhi-Jie Kang, Wen-Jun Fan, Li-Li Zhu, Mei Li, Bai Cui, Fei-Meng Zheng, Hong-Jiang Wang, Eric W-F Lam, Bo Wang, Jie Xu, Quentin Liu
Long noncoding RNA-H19 (H19), an imprinted oncofetal gene, has a central role in carcinogenesis. Hitherto, the mechanism by which H19 regulates cancer stem cells, remains elusive. Here we show that breast cancer stem cells (BCSCs) express high levels of H19, and ectopic overexpression of H19 significantly promotes breast cancer cell clonogenicity, migration and mammosphere-forming ability. Conversely, silencing of H19 represses these BCSC properties. In concordance, knockdown of H19 markedly inhibits tumor growth and suppresses tumorigenesis in nude mice...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28102797/why-undertake-a-pilot-in-a-qualitative-phd-study-lessons-learned-to-promote-success
#3
Jane Wray, Uduak Archibong, Sean Walton
Background Pilot studies can play an important role in qualitative studies. Methodological and practical issues can be shaped and refined by undertaking pilots. Personal development and researchers' competence are enhanced and lessons learned can inform the development and quality of the main study. However, pilot studies are rarely published, despite their potential to improve knowledge and understanding of the research. Aim To present the main lessons learned from undertaking a pilot in a qualitative PhD study...
January 23, 2017: Nurse Researcher
https://www.readbyqxmd.com/read/28102571/developing-a-cultural-competence-inventory-for-nurses-in-china
#4
D Cai, W Kunaviktikul, A Klunklin, A Sripusanapan, P K Avant
AIM: To develop and psychometrically test the Cultural Competence Inventory for Nurses in China. BACKGROUND: Cultural competence is expected worldwide from nurses due to the increasing cultural diversity of people in healthcare establishments. Yet, no cultural competence framework or instrument for nurses has been identified to guide nursing practice in China where the cultural diversity of the populations and the characteristics of the healthcare system are different from those of the West...
January 19, 2017: International Nursing Review
https://www.readbyqxmd.com/read/28102550/accounting-for-competing-risks-in-randomized-controlled-trials-a-review-and-recommendations-for-improvement
#5
Peter C Austin, Jason P Fine
In studies with survival or time-to-event outcomes, a competing risk is an event whose occurrence precludes the occurrence of the primary event of interest. Specialized statistical methods must be used to analyze survival data in the presence of competing risks. We conducted a review of randomized controlled trials with survival outcomes that were published in high-impact general medical journals. Of 40 studies that we identified, 31 (77.5%) were potentially susceptible to competing risks. However, in the majority of these studies, the potential presence of competing risks was not accounted for in the statistical analyses that were described...
January 19, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28102467/mypod-an-emr-based-tool-that-facilitates-quality-improvement-and-maintenance-of-certification
#6
Loren Berman, Brian Duffy, B Randall Brenn, Charles Vinocur
Maintenance of Certification (MOC) was designed to assess physician competencies including operative case volume and outcomes. This information, if collected consistently and systematically, can be used to facilitate quality improvement. Information automatically extracted from the electronic medical record (EMR) can be used as a prompt to compile these data. We developed an EMR-based program called MyPOD (My Personal Outcomes Data) to track surgical outcomes at our institution. We compared occurrences reported in the first 18 months to those captured in the American College of Surgeons National Surgical Quality Improvement Program-Pediatric (ACS NSQIP-P) over the same time period...
March 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28102267/a-theoretical-foundation-for-multi-scale-regular-vegetation-patterns
#7
Corina E Tarnita, Juan A Bonachela, Efrat Sheffer, Jennifer A Guyton, Tyler C Coverdale, Ryan A Long, Robert M Pringle
Self-organized regular vegetation patterns are widespread and thought to mediate ecosystem functions such as productivity and robustness, but the mechanisms underlying their origin and maintenance remain disputed. Particularly controversial are landscapes of overdispersed (evenly spaced) elements, such as North American Mima mounds, Brazilian murundus, South African heuweltjies, and, famously, Namibian fairy circles. Two competing hypotheses are currently debated. On the one hand, models of scale-dependent feedbacks, whereby plants facilitate neighbours while competing with distant individuals, can reproduce various regular patterns identified in satellite imagery...
January 18, 2017: Nature
https://www.readbyqxmd.com/read/28101986/size-dependent-activity-of-palladium-nanoparticles-pd-nps-efficient-conversion-of-co2-into-formate-at-low-overpotentials
#8
Motiar Rahaman, Abhijit Dutta, Peter Broekmann
We report a remarkable size-dependent activity of palladium nanoparticles towards formate production at very low overpotentials (-0.1 V to -0.5 V vs RHE). Size-selective Pd-NPs have been chemically synthesized in the range from 3.8nm to 10.7nm. Electrochemical CO₂ reduction reaction was carried out in aqueous 0.5M NaHCO₃ solution. The Faradaic efficiency of formate production (FE/formate) exceeds more than 86% at E = -0.1 V vs RHE on 3.8nm Pd-NPs whereas on 6.5 nm Pd-NPs an even higher FEformate of 98% is observed...
January 19, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28101974/etiquette-competence-and-professionalism-the-profile-of-the-ideal-pediatric-anesthesiologist
#9
EDITORIAL
Karin Becke, Martin Jöhr
No abstract text is available yet for this article.
February 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28101925/-watch-out-effects-of-instructed-threat-and-avoidance-on-human-free-operant-approach-avoidance-behavior
#10
Michael W Schlund, Kay Treacher, Oli Preston, Sandy K Magee, David M Richman, Adam T Brewer, Gemma Cameron, Simon Dymond
Approach-avoidance paradigms create a competition between appetitive and aversive contingencies and are widely used in nonhuman research on anxiety. Here, we examined how instructions about threat and avoidance impact control by competing contingencies over human approach-avoidance behavior. Additionally, Experiment 1 examined the effects of threat magnitude (money loss amount) and avoidance cost (fixed ratio requirements), whereas Experiment 2 examined the effects of threat information (available, unavailable and inaccurate) on approach-avoidance...
January 2017: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/28101631/lumbar-and-sacral-pedicle-screw-placement-using-a-template-does-not-improve-the-midterm-pain-and-disability-outcome-in-comparison-with-free-hand-method
#11
Matjaz Merc, Gregor Recnik, Zmago Krajnc
BACKGROUND: The free-hand technique carries a higher risk of pedicle weakening and neurovascular injuries in comparison with pedicle screw placement using a drill guide. Due to this evidence and because of some variances in the surgical method, different outcome can be expected. The objective of the study was to evaluate the disability, the back and leg pain before and at least 3 years after the surgery between examined groups. MATERIALS AND METHODS: Eleven patients in drill guide and 13 in control group were randomly assigned for vertebral fusion in the lumbar and first sacral regions...
January 19, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28100678/modulation-of-naive-cd8-t-cell-response-features-by-ligand-density-affinity-and-continued-signaling-via-internalized-tcrs
#12
Renu Balyan, Rupali Gund, Chitra Ebenezer, Jasneet Kaur Khalsa, Divya Anna Verghese, Thyagarajan Krishnamurthy, Anna George, Vineeta Bal, Satyajit Rath, Ashutosh Chaudhry
T cell response magnitudes increase with increasing antigenic dosage. However, it is unclear whether ligand density only modulates the proportions of responding ligand-specific T cells or also alters responses at the single cell level. Using brief (3 h) exposure of TCR-transgenic mouse CD8 T cells in vitro to varying densities of cognate peptide-MHC ligand followed by ligand-free culture in IL-2, we found that ligand density determined the frequencies of responding cells but not the expression levels of the early activation marker molecule, CD69...
January 18, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28100667/the-control-of-translational-accuracy-is-a-determinant-of-healthy-ageing-in-yeast
#13
Tobias von der Haar, Jane E Leadsham, Aimie Sauvadet, Daniel Tarrant, Ilectra S Adam, Kofo Saromi, Peter Laun, Mark Rinnerthaler, Hannelore Breitenbach-Koller, Michael Breitenbach, Mick F Tuite, Campbell W Gourlay
Life requires the maintenance of molecular function in the face of stochastic processes that tend to adversely affect macromolecular integrity. This is particularly relevant during ageing, as many cellular functions decline with age, including growth, mitochondrial function and energy metabolism. Protein synthesis must deliver functional proteins at all times, implying that the effects of protein synthesis errors like amino acid misincorporation and stop-codon read-through must be minimized during ageing. Here we show that loss of translational accuracy accelerates the loss of viability in stationary phase yeast...
January 2017: Open Biology
https://www.readbyqxmd.com/read/28100625/the-ptpn14-tumour-suppressor-is-a-degradation-target-of-human-papillomavirus-e7
#14
Anita Szalmás, Vjekoslav Tomaić, Om Basukala, Paola Massimi, Suruchi Mittal, József Kónya, Lawrence Banks
: Activation of signalling pathways ensuring cell growth are essential for the proliferative competence of human papillomavirus (HPV)-infected cells. Tyrosine kinases and phosphatases are key regulators of cellular growth control pathways. A recently identified potential cellular target of HPV E7 is the cytoplasmic protein tyrosine phosphatase PTPN14, which is a potential tumour suppressor and is linked to the control of the Hippo and Wnt/beta-catenin signalling pathways. In this study we show that the E7 proteins of both high-risk and low-risk mucosal HPV types can interact with PTPN14...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28100617/differences-in-glycoprotein-complex-gpc-receptor-binding-site-accessibility-prompt-poor-cross-reactivity-of-neutralizing-antibodies-between-closely-related-arenaviruses
#15
Rachel B Brouillette, Elisabeth K Phillips, Natarajan Ayithan, Wendy Maury
: The glycoprotein complex (GPC) of arenaviruses, composed of stable signal peptide (SSP), GP1, and GP2, is the only antigen correlated with antibody-mediated neutralization. However, despite strong cross-reactivity of convalescent antisera between related arenavirus species, weak or no cross-neutralization occurs. Two closely related Clade B viruses, Machupo virus (MACV) and Junín virus (JUNV), have near identical overall GPC architecture and share a host receptor, transferrin receptor 1...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28100392/replication-study-the-cd47-signal-regulatory-protein-alpha-sirpa-interaction-is-a-therapeutic-target-for-human-solid-tumors
#16
Stephen K Horrigan
In 2015, as part of the Reproducibility Project: Cancer Biology, we published a Registered Report (Chroscinski et al., 2015) that described how we intended to replicate selected experiments from the paper "The CD47-signal regulatory protein alpha (SIRPa) interaction is a therapeutic target for human solid tumors "(Willingham et al., 2012). Here we report the results of those experiments. We found that treatment of immune competent mice bearing orthotopic breast tumors with anti-mouse CD47 antibodies resulted in short-term anemia compared to controls, consistent with the previously described function of CD47 in normal phagocytosis of aging red blood cells and results reported in the original study (Table S4; Willingham et al...
January 19, 2017: ELife
https://www.readbyqxmd.com/read/28100303/ethanol-glycogen-and-glucosylglycerol-represent-competing-carbon-pools-in-ethanol-producing-cells-of-synechocystis-sp-pcc-6803-under-high-salt-conditions
#17
Nadin Pade, Stefan Mikkat, Martin Hagemann
Cyanobacteria are photoautotrophic microorganisms, which are increasingly being used as microbial cell factories to produce for example ethanol directly from solar energy and CO2. Here we analyzed the effects of different salt concentrations on an ethanol-producing strain of Synechocystis sp. PCC 6803 that over-expresses the pyruvate decarboxylase (pdc) from Zymomonas mobilis and the native alcohol dehydrogenase (adhA). Moderate salinities of 2% NaCl had no negative impact on ethanol production, whereas the addition of 4% NaCl resulted in significantly decreased ethanol yields compared to low salt conditions...
January 18, 2017: Microbiology
https://www.readbyqxmd.com/read/28100243/combating-substance-misuse-competences-and-preparation-of-special-education-department-students
#18
Eman Al-Zboon
BACKGROUND: This study examines Jordanian special education department students' competences and preparation relating to combating substance misuse (SM). METHOD: Thematic analysis was performed on data from interviews with 150 students. RESULTS: Some participants denied the possibility of addiction among students with disabilities, and presented negative attitudes toward their role in combating SM. In general, the participants displayed low levels of professionalism relating to combating SM, and the results revealed that they felt that their preparation programme had been inadequate and they desired more courses that related to combating SM...
January 14, 2017: Substance Abuse Treatment, Prevention, and Policy
https://www.readbyqxmd.com/read/28100204/acceptance-and-attitudes-of-healthcare-staff-towards-the-introduction-of-clinical-pharmacy-service-a-descriptive-cross-sectional-study-from-a-tertiary-care-hospital-in-sri-lanka
#19
Lelwala Guruge Thushani Shanika, Chandrani Nirmala Wijekoon, Shaluka Jayamanne, Judith Coombes, Ian Coombes, Nilani Mamunuwa, Andrew Hamilton Dawson, Hithanadura Asita De Silva
BACKGROUND: Multidisciplinary patient management including a clinical pharmacist shows an improvement in patient quality use of medicine. Implementation of a clinical pharmacy service represents a significant novel change in practice in Sri Lanka. Although attitudes of doctors and nurses are an important determinant of successful implementation, there is no Sri Lankan data about staff attitudes to such changes in clinical practice. This study determines the level of acceptance and attitudes of doctors and nurses towards the introduction of a ward-based clinical pharmacy service in Sri Lanka...
January 18, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28100151/renin-inhibition-by-soyasaponin-i-a-potent-native-anti-hypertensive-compound
#20
Zeinab Tavassoli, Majid Taghdir, Bijan Ranjbar
One way to control hypertension is inactivation of the Renin- Angiotensin- Aldosterone System (RAAS). Inhibition of renin as a rate-limiting step of this system is an effective way to stop up RAAS. It has been proved that soyasaponin I, an herbal compound obtained from soybeans, has anti-hypertensive effect via renin inhibition, so it has the potential of being an anti-hypertensive drug. Herein, some theoretical approaches such as Docking Simulation, Molecular Dynamics (MD) Simulation and MMPBSA analysis have been used to study how soyasaponin I inhibits renin at the structural level...
January 19, 2017: Journal of Biomolecular Structure & Dynamics
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