Incremental motion drive system Patent

Incremental motion drive system applied to interferometer component

Motion drive system is accurately controlled in the 1-micron range

Motion drive system has been developed for use with interferometers where accurate control of minuscule distance in the 1-micron range is of prime importance. The drive system is applicable to any device that requires extremely accurate positioning control

An Experiment on Impulse Excitation

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VICAR-DIGITAL image processing system

Computer program corrects various photometic, geometric and frequency response distortions in pictures. The program converts pictures to a number of elements, with each elements optical density quantized to a numerical value. The translated picture is recorded on magnetic tape in digital form for subsequent processing and enhancement by computer

Development of A “PharmaComm” Serious Game for Teaching Pharmacist Communication and Drug Administration in a Virtual Hospital Setting

Practical experience is crucial in pharmacy education, but it can be difficult to provide pharmacy students with a sufficient level of experience during their education due to a number of challenges. Video games might provide a platform where students can gain positive learning experience in a virtual environment. Serious games have been used successfully across many industries, which suggest that a well-designed serious game can have positive learning outcomes. Increased engagement and motivation are mentioned by experts as some of the main benefits of serious games. Being able to practise skills before utilising them in real-world scenarios is another advantage identified. In this paper, we present a virtual patient simulator which is designed specifically teaching pharmacy students patient communication and administration of drugs. A pilot study and an expert review were carried out to evaluate the effectiveness of the application and its findings are presented

Emergency supply of prescription-only medicines to patients by community pharmacists: a mixed methods evaluation incorporating patient, pharmacist and GP perspectives

Objective To evaluate and inform emergency supply of prescription-only medicines by community pharmacists (CPs), including how the service could form an integral component of established healthcare provision to maximise adherence. Design Mixed methods. 4 phases: prospective audit of emergency supply requests for prescribed medicines (October–November 2012 and April 2013); interviews with CPs (February–April 2013); follow-up interviews with patients (April–May 2013); interactive feedback sessions with general practice teams (October–November 2013). Setting 22 community pharmacies and 6 general practices in Northwest England. Participants 27 CPs with experience of dealing with requests for emergency supplies; 25 patients who received an emergency supply of a prescribed medicine; 58 staff at 6 general practices. Results Clinical audit in 22 pharmacies over two 4-week periods reported that 526 medicines were requested by 450 patients. Requests peaked over a bank holiday and around weekends. A significant number of supplies were made during practice opening hours. Most requests were for older patients and for medicines used in long-term conditions. Difficulty in renewing repeat medication (forgetting to order, or prescription delays) was the major reason for requests. The majority of medicines were ‘loaned’ in advance of a National Health Service (NHS) prescription. Interviews with CPs and patients indicated that continuous supply had a positive impact on medicines adherence, removing the need to access urgent care. General practice staff were surprised and concerned by the extent of emergency supply episodes. Conclusions CPs regularly provide emergency supplies to patients who run out of their repeat medication, including during practice opening hours. This may aid adherence. There is currently no feedback loop, however, to general practice. Patient care and interprofessional communication may be better served by the introduction of a formally structured and funded NHS emergency supply service from community pharmacies, with ongoing optimisation of repeat prescribing

Inpatient prescribing systems used in NHS Acute 65 66 Trusts across England: a managerial perspective

Objective The individualised patient prescription chart, either paper or electronic, is an integral part of communication between healthcare professionals. The aim of this study is to ascertain the extent to which different prescribing systems are used for inpatient care in acute hospitals in England and explore chief pharmacists’ opinions and experiences with respect to electronic prescribing and medicines administration (EPMA) systems. Method Audio-recorded semistructured telephone interviews with chief pharmacists or their nominated representatives of general acute hospital trusts across England. Results Forty-five per cent (65/146) of the chief pharmacists agreed to participate. Eighteen per cent (12/65) of the participants interviewed stated that their trust had EPMA systems fully or partially implemented on inpatient wards. The most common EPMA system in place was JAC (n=5) followed by MEDITECH (n=3), iSOFT (n=2), PICS (n=1) and one in-house created system. Of the 12 trusts that had EPMA in place, 4 used EPMA on all of their inpatient wards and the remaining 8 had a mixture of paper and EPMA systems in use. Fifty six (86% 56/65) of all participants had consulted the standards for the design of inpatient prescription charts. From the 12 EPMA interviews qualitatively analysed, the regulation required to provide quality patient care is perceived by some to be enforceable with an EPMA system, but that this may affect accuracy and clinical workflow, leading to undocumented, unofficial workarounds that may be harmful. Conclusions The majority of inpatient prescribing in hospital continues to use paper-based systems; there was significant diversity in prescribing systems in use. EPMA systems have been implemented but many trusts have retained supplementary paper drug charts, for a variety of medications. Mandatory fields may be appropriate for core prescribing information, but the expansion of their use needs careful consideration

Individual Tree Species Classification from Airborne Multisensor Imagery Using Robust PCA

Remote sensing of individual tree species has many applications in resource management, biodiversity assessment, and conservation. Airborne remote sensing using light detection and ranging (LiDAR) and hyperspectral sensors has been used extensively to extract biophysical traits of vegetation and to detect species. However, its application for individual tree mapping remains limited due to the technical challenges of precise coalignment of images acquired from different sensors and accurately delineating individual tree crowns (ITCs). In this study, we developed a generic workflow to map tree species at ITC level from hyperspectral imagery and LiDAR data using a combination of well established and recently developed techniques. The workflow uses a nonparametric image registration approach to coalign images, a multiclass normalized graph cut method for ITC delineation, robust principal component analysis for feature extraction, and support vector machine for species classification. This workflow allows us to automatically map tree species at both pixel- and ITC-level. Experimental tests of the technique were conducted using ground data collected from a fully mapped temperate woodland in the UK. The overall accuracy of pixel-level classification was 91%, while that of ITC-level classification was 61%. The test results demonstrate the effectiveness of the approach, and in particular the use of robust principal component analysis to prune the hyperspectral dataset and reveal subtle difference among species.Department for Environment, Food and Rural AffairsThis is the author accepted manuscript. The final version is available from IEEE via http://dx.doi.org/10.1109/JSTARS.2016.256940

Patients’ use of information about medicine side effects in relation to experiences of suspected adverse drug reactions

Background Adverse drug reactions (ADRs) are common, and information about medicines is increasingly widely available to the public. However, relatively little work has explored how people use medicines information to help them assess symptoms that may be suspected ADRs. Objective Our objective was to determine how patients use patient information leaflets (PILs) or other medicines information sources and whether information use differs depending on experiences of suspected ADRs. Method This was a cross-sectional survey conducted in six National Health Service (NHS) hospitals in North West England involving medical in-patients taking at least two regular medicines prior to admission. The survey was administered via a questionnaire and covered use of the PIL and other medicines information sources, perceived knowledge about medicines risks/ADRs, experiences of suspected ADRs, plus demographic information. Results Of the 1,218 respondents to the survey, 18.8 % never read the PIL, whilst 6.5 % only do so if something unexpected happens. Educational level was related to perceived knowledge about medicines risks, but not to reading the PIL or seeking further information about medicines risks. Over half the respondents (56.0 %) never sought more information about possible side effects of medicines. A total of 57.2 % claimed they had experienced a suspected ADR. Of these 85.9 % were either very sure or fairly sure this was a reaction to a medicine. Over half of those experiencing a suspected ADR (53.8 %) had read the PIL, of whom 36.2 % did so before the suspected ADR occurred, the remainder afterwards. Reading the PIL helped 84.8 % of these respondents to decide they had experienced an ADR. Educational level, general knowledge of medicines risks and number of regular medicines used all increased the likelihood of experiencing an ADR. Conclusion More patients should be encouraged to read the PIL supplied with medicines. The results support the view that most patients feel knowledgeable about medicines risks and suspected ADRs and value information about side effects, but that reading about side effects in PILs or other medicines information sources does not lead to experiences of suspected ADRs