2,078 research outputs found
A COST EFFECTIVE CPD PATHWAY TO BESPOKE POSTGRADUATE ACADEMIC QUALIFICATIONS FOR SPORTS PRACTITIONERS
To access higher level academic knowledge and qualifications relevant to vocational advancement, coaches and teachers of specific sports need affordable bespoke courses bridging between the courses of the coaching accreditation schemes and sport-specific postgraduate academic courses. The purpose of this project was to establish a model for delivery of on-line continuing professional development (CPD) to coaches and teachers thereby providing a pathway to higher qualifications with direct benefit to their coaching and teaching. The model includes bridging courses delivered on-line that enable participants to enter the diploma level of academic masters programmes with advanced prior learning (APL) status in lieu of the 60 credit points obtained at postgraduate certificate level. This reduces the cost of obtaining a Masters degree by one third
Simulation, modelling and development of the metris RCA
In partnership with Metris UK we discuss the utilisation of modelling and simulation methods in the development of a revolutionary 7-axis Robot CMM Arm (RCA). An offline virtual model is described, facilitating pre-emptive collision avoidance and assessment of optimal placement of the RCA relative to scan specimens. Workspace accessibility of the RCA is examined under a range of geometrical assumptions and we discuss the effects of arbitrary offsets resulting from manufacturing tolerances. Degeneracy is identified in the number of ways a given pose may be attained and it is demonstrated how a simplified model may be exploited to solve the inverse kinematics problem of finding the âcorrectâ set of joint angles. We demonstrate how the seventh axis may be utilised to avoid obstacles or otherwise awkward poses, giving the unit greater dexterity than traditional CMMs. The results of finite element analysis and static force modelling on the RCA are presented which provide an estimate of the forces exerted on the internal measurement arm in a range of poses
Characteristics, accuracy and reverification of robotised articulated arm CMMs
VDI article 2617 specifies characteristics to describe the accuracy of articulated arm coordinate measuring machines (AACMMs) and outlines procedures for checking them. However the VDI prescription was written with a former generation of machines in mind: manual arms exploiting traditional touch probe technologies. Recent advances in metrology have given rise to noncontact laser scanning tools and robotic automation of articulated arms â technologies which are not adequately characterised using the VDI specification. In this paper we examine the âguidelinesâ presented in VDI 2617, finding many of them to be ambiguous and open to interpretation, with some tests appearing even to be optional. The engineer is left significant flexibility in the execution of the test procedures and the manufacturer is free to specify many of the test parameters. Such flexibility renders the VDI tests of limited value and the results can be misleading. We illustrate, with examples using the Nikon RCA, how a liberal interpretation of the VDI guidelines can significantly improve accuracy characterisation and suggest ways in which to mitigate this problem.
We propose a series of stringent tests and revised definitions, in the same vein as VDI 2617 and similar US standards, to clarify the accuracy characterisation process. The revised methodology includes modified acceptance and reverification tests which aim to accommodate emerging technologies, laser scanning devices in particular, while maintaining the spirit of the existing and established standards. We seek to supply robust re-definitions for the accepted terms âzero pointâ and âuseful arm lengthâ, pre-supposing nothing about the geometry of the measuring device.
We also identify a source of error unique to robotised AACMMs employing laser scanners â the forward-reverse pass error. We show how eliminating this error significantly improves the repeatability of a device and propose a novel approach to the testing of probing error based on statistical uncertainty
Non-Markov Policies to Reduce Sequential Failures in Robot Bin Picking
A new generation of automated bin picking systems using deep learning is
evolving to support increasing demand for e-commerce. To accommodate a wide
variety of products, many automated systems include multiple gripper types
and/or tool changers. However, for some objects, sequential grasp failures are
common: when a computed grasp fails to lift and remove the object, the bin is
often left unchanged; as the sensor input is consistent, the system retries the
same grasp over and over, resulting in a significant reduction in mean
successful picks per hour (MPPH). Based on an empirical study of sequential
failures, we characterize a class of "sequential failure objects" (SFOs) --
objects prone to sequential failures based on a novel taxonomy. We then propose
three non-Markov picking policies that incorporate memory of past failures to
modify subsequent actions. Simulation experiments on SFO models and the EGAD
dataset suggest that the non-Markov policies significantly outperform the
Markov policy in terms of the sequential failure rate and MPPH. In physical
experiments on 50 heaps of 12 SFOs the most effective Non-Markov policy
increased MPPH over the Dex-Net Markov policy by 107%.Comment: 2020 IEEE International Conference on Automation Science and
Engineering (CASE
Why Trades Get No Respect; Defending the Editorial Budget; What\u27s Really Happening in the Job Market; Marketing is Everything; The Scientific Poster: Guidelines for Effective Visual Communication; Editing and Publication: A Training Manual
Reviews of Why Trades Get No Respect, by Richard M.O\u27Connor; Defending the Editorial Budget, by Frank Finn; What\u27s Really Happening in the Job Market, by Kathryn Kane; Marketing is Everything, by Regis McKenna; The Scientific Poster, by Diane L. Matthews; Editing and Publication: A Training Manual, by Ian Montagnes
Prospectus, February 26, 2014
MONEY SAVING TIPS AND BENEFITS FOR CASH-STRAPPED STUDENTS, Notice to Students and Faculty Regarding Final Examinations, Raising the Minimum Wage, Views on the Health Care Law, The 101: Crack the Job Hunt Code, How to Make the Most of Your Morning, Comcast Looking to Merge with Time Warner Cable, Information on Criminal Justice Club, The 1964 Beatles, Parkland\u27s Charmers Dance Team Go on Hiatus Until 2014-2015 Season, Cobra Use Torrid Second Half Shooting to Beat Illinois Wesleyan JV 80-69, America\u27s Sweetheart: Charming and Diplomatic, Shirley Temple Black Won Over Film Fans and Heads of Statehttps://spark.parkland.edu/prospectus_2014/1005/thumbnail.jp
Solution-Focused Brief Therapy-Enhanced Fatherhood Curriculum Pilot Study: A Comparison of Delivery Methods in Response to the COVID-19 Pandemic
Many fatherhood programs provide curriculum-based peer groups, but the evidence for their effectiveness is limited and prior studies highlight challenges in recruiting and retaining participants. This pilot study aimed to test the effectiveness of a standard fatherhood curriculum enhanced with Solution Focused Brief Therapy (SFBT) using a quasi-experimental design. Study outcomes included father involvement and parenting skills measured immediately post-intervention. A sample of 92 fathers (M age = 35.2) participating in a fatherhood program were recruited to participate in the study. Due to COVID-19, the treatment groups were moved to an online format. Independent samples and paired samples t-test were used to detect group differences and Hedgesâs effect sizes were also calculated to examine magnitude of treatment effects. Although the SFBT-enhanced peer group curriculum did not outperform the comparison curriculum, the online version of the SFBT-enhanced curriculum was found to be equivalent to the in-person curriculum. These novel findings suggest that online fatherhood groups may be similarly as effective as in-person groups, which may increase opportunities for access and participation in fatherhood programs
What does 'supporting parents' mean? - parents' views
This paper reports on the views of a community sample of 428 parents with primary school-aged children. In a previous study parents had identified that they needed 'support'. This study was designed to try to understand what types of support parents already have and what support they think needs to be available to them.
Most parents use informal support of family and friends and have limited awareness of what is available to them in the way of locally based services. They propose services which are already available, like Parentline, but of which they are unaware.
There seems to be a need for universal, non-stigmatising services which design their programmes with parents and can refer to more specialised services, e.g. Social Services or Family Centres. These services need to be located in agencies which parents frequent and are comfortable with, such as schools and health settings
Uremic serum-induced calcification of human aortic smooth muscle cells is a regulated process involving Klotho and RUNX2
© 2019 The Author(s). This is an open access article published by Portland Press Limited on behalf of the Biochemical Society and distributed under the Creative Commons Attribution License 4.0 (CC BY).Vascular calcification (VC) is common in subjects with chronic kidney disease (CKD) and is associated with increased cardiovascular risk. It is an active process involving transdifferentiation of arterial smooth muscle cells (SMCs) into osteogenic phenotype. We investigated the ability of serum from CKD subjects to induce calcification in human SMCs in vitro (calcific potential of sera: CP), and associated changes in expression of Runt-related transcription factor 2 (RUNX2), SM22a, and Klotho. Sera from subjects with CKD (18 stage 3, 17 stage 4/5, and 29 stage 5D) and 20 controls were added to human cultured SMCs and CP quantified. The CP of CKD sera was greater (P>0.01) than that of controls, though not influenced by CKD stage. Modification of diet in renal disease estimated glomerular filtration rate (MDRD-4 eGFR) (P>0.001), serum phosphate (P=0.042), receptor activator of nuclear factor ?appa-B ligand (RANKL) (P=0.001), parathyroid hormone (PTH) (P=0.014), and high-density lipoprotein (HDL)/cholesterol ratio (P=0.026) were independent predictors of CP accounting for 45% of variation. Adding calcification buffer (CB: calcium chloride [7 mM] and ÎČ-glycerophosphate [7 mM]) increased the CP of control sera to approximate that of CKD sera. CP of CKD sera was unchanged. CKD sera increased RUNX2 expression (P>0.01) in human SMCs and decreased SM22a expression (P>0.05). Co-incubating control but not CKD serum with CB further increased RUNX2 expression (P>0.01). Both SM22a and Klotho expression decreased significantly (P>0.01) in the presence of CKD serum, and were virtually abolished with stage 5D sera. These findings support active regulation by CKD serum of in vitro VC by induction of RUNX2 and suppression of SM22a and Klotho.Peer reviewe
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