New system for bathing bedridden patients

Multihead shower facility can be used with minimal patient handling. Waterproof curtain allows patient to bathe with his head out of shower. He can move completely inside shower to wash his face and hair. Main advantage of shower system is time saved in giving bath

The detection and classification of blast cell in Leukaemia Acute Promyelocytic Leukaemia (AML M3) blood using simulated annealing and neural networks

This paper was delivered at AIME 2011: 13th Conference on Artifical Intelligence in Medicine.This paper presents a method for the detection and classification of blast cells in M3 with others sub-types using simulated annealing and neural networks. In this paper, we increased our test result from 10 images to 20 images. We performed Hill Climbing, Simulated Annealing and Genetic Algorithms for detecting the blast cells. As a result, simulated annealing is the “best” heuristic search for detecting the leukaemia cells. From the detection, we performed features extraction on the blast cells and we classifying based on M3 and other sub-types using neural networks. We received convincing result which has targeting around 97% in classifying of M3 with other sub-types. Our results are based on real world image data from a Haematology Department.Universiti Sains Islam Malaysia and the Ministry of Higher Education, Malaysi

Transactional space: feedback, critical thinking, and learning dance technique

This article explores attitudes about feedback and critical thinking in dance technique classes. We discuss an expansion of our teaching practices to include feedback as bidirectional (transactional) and a part of developing critical thinking skills in student dancers. The article was written after we undertook research exploring attitudes and cultures surrounding feedback in dance technique classes within university settings in the United Kingdom and the United States. Using a hybrid ethnographic (practice as research) model we collected data through class observations, individual interviews with students and teachers, and journaling and reflecting on our own daily teaching practice. Pseudonyms have been used throughout and permission obtained from participants to include their voices in the article.1(1. This research was approved by University ethics board and institution review board, and followed rigorous ethical procedures, including consent forms and reviews during our process.) At the beginning of our inquiry we were interested in exploring how students received feedback. We thought this would involve discovering more about the forms and ways feedback can be communicated to students, particularly how a climate of negative feedback can be avoided in the classroom. However, as we carried out the research we realized that merely looking at how feedback is communicated constructs feedback as one-directional. We questioned whether we had been placing enough importance on the notion that feedback can be transactional. Following John Dewey, we take the term transactional to indicate dynamic, co-created relationships and environments (Dewey and Boydston 2008 Dewey, J., and J. A. Boydston. 2008. The later works of John Dewey, 1925–1953. Carbondale: Southern Illinois University Press.). We realized that how feedback is communicated is significant, of course, but the means by which it is recognized as feedback by students, and how it is responded to is of equal bearing. This led us to consider the importance of students’ (and teachers’) critical thinking in our classrooms, as we felt student responses to feedback are as important as the action of giving it. By critical thinking we are suggesting skills of evaluation that allow for synthesis of ideas and support the ability to have shifts in perception. We want our students to develop the analytical skills to let go of an essentialist approach to their perception of themselves as dancers, and instead critically challenge their habitual movements and notions of what dance can be. Thus we see critical thinking as supporting the co-construction and permeability of a transactional approach to feedback. Informed by Dewey’s somatic starting point we approached the inquiry from a theoretical framework that places bodily experience as central—which we are calling embodiment. (This methodology is examined further in Akinleye 2016 Akinleye, A. 2016. Her life in movement: Embodiment as a methodology. In Researching embodied sport: Exploring movement cultures, ed. I. Wellard, 178–96. London: Routledge.). In this article we discuss how we have come to see a relationship among feedback, communication, and critical thinking in dance technique classrooms

Detection and emotional evaluation of an electric vehicle’s exterior sound in a simulated environment

Electric vehicles are quiet at low speeds and thus potentially pose a threat to pedestrians’ safety. Laws are formulating worldwide that mandate these vehicles emit sounds to alert the pedestrians of the vehicles’ approach. It is necessary that these sounds promote a positive perception of the vehicle brand, and understanding their impact on soundscapes is also important. Detection time of the vehicle sounds is an important measure to assess pedestrians’ safety. Emotional evaluation of these sounds influences assessment of the vehicle brand. Laboratory simulation is a new approach for evaluating exterior automotive sounds. This study describes the implementation of laboratory simulation to compare the detection time and emotional evaluation of artificial sounds for an electric vehicle. An Exterior Sound Simulator simulated audio-visual stimuli of an electric car passing a crossroad of a virtual town at 4.47 ms-1 (10 mph), from the perspective of a pedestrian standing at the crossroad. In this environment, 15 sounds were tested using experiments where participants detected the car and evaluated its sound using perceptual dimensions. Results show that these sounds vary significantly in their detection times and emotional evaluations, but crucially that traditional metrics like dB(A) do not always relate to the detection of these sounds. Detection time and emotional evaluation do not have significant correlation. Hence, sounds of a vehicle could be detected quickly, but may portray negative perceptions of the vehicle. Simulation provides a means to more fully evaluate potential electric vehicle sounds against the competing criteria

Physical properties of natural rubber

This Thesis is a review of the effect of temperature and frequency of oscillation on the viscoelastic properties of natural rubber when a sinusoidal oscillation, either electrical or mechanical, is used to stress the rubber. The Thesis is divided into two sections. The first part discusses the dynamic mechanical properties of various types of natural rubber vulcanizate, with particular emphasis on the interdependence of temperature and frequency of oscillation. The second part discusses the dielectric properties of natural rubber and again treats the interdependence of temperature and frequency on the Physical properties in detail. Molecular theories regarding the mechanical and dielectric properties are reviewed and applied to experimental data

Exploring a cardio-thoracic hospital ward soundscape in relation to restoration

Hospitals can provide stressful experiences for both patients and medical staff. A well-designed hospital soundscape should avoid adding to negative emotional states (e.g. stress), limit any detrimental cognitive effects (e.g. attentional fatigue), and enable restoration. Experiences of the cardio-thoracic ward soundscape, in a UK public University hospital, were explored via semi-structured interviews with 11 patients and 16 nurses. Thematic coding analysis resulted in 11 key themes including notions of restoration and emotional responses. The themes were used to develop a conceptual model to describe the processes involved in the perception and evaluation of the soundscape. The language used by patients and nurses indicated the emotional response to the soundscape was at times stressful and at others potentially restorative. Coping methods of accepting and habituating to individual sounds were noted. The impact of the patients' and nurses' ability to maintain these coping strategies are discussed in relation to restoration and the temporal variation of the soundscape. A period of 'quiet time' was in operation at the hospital and the importance of this was noted through various responses relating to emotion and restoration. The results suggest the soundscape has potentially, a beneficial role in facilitating restoration thus helping patients' recovery and medical staff's ability to remain productive. This research supports the need to study hospital soundscapes further so that design implications can be considered for the production of a more restorative environment, possibly through the masking/removal of unwanted sounds and optimising positive sounds

Magnetism and Magnetic Isomers in Free Chromium Clusters

We have used the Stern-Gerlach deflection technique to study magnetism in chromium clusters of 20-133 atoms. Between 60 K and 100 K, we observe that these clusters have large magnetic moments and respond superparamagnetically to applied magnetic fields. Using superparamagnetic theory, we have determined the moment per atom for each cluster size and find that it often far exceeds the moment per atom present anywhere in the bulk antiferromagnetic lattice. Remarkably, our cluster beam contains two magnetically distinguishable forms of each cluster size with >= 34 atoms. We attribute this observation to structural isomers

YF-12 Lockalloy ventral fin program, volume 1

Results are presented of the YF-12 Lockalloy Ventral Fin Program which was carried out by Lockheed Aircraft Corporation - Advanced Development Projects for the joint NASA/USAF YF-12 Project. The primary purpose of the program was to redesign and fabricate the ventral fin of the YF-12 research airplane (to reduce flutter) using Lockalloy, and alloy of beryllium and aluminum, as a major structural material. A secondary purpose, was to make a material characterization study (thermodynamic properties, corrosion; fatigue tests, mechanical properties) of Lockalloy to validate the design of the ventral fin and expand the existing data base on this material. All significant information pertinent to the design and fabrication of the ventral fin is covered. Emphasis throughout is given to Lockalloy fabrication and machining techniques and attendant personnel safety precautions. Costs are also examined. Photographs of tested alloy specimens are shown along with the test equipment used

The Extended Power Law as Intrinsic Signature For a Black Hole

We analyze the exact general relativistic exact integro-differential equation of radiative transfer describing the interaction of low energy photons with a Maxwellian distribution of hot electrons in gravitational field of a Schwarzschild black hole. We prove that due to Comptonization an initial arbitrary spectrum of low energy photons unavoidably results in spectra characterized by an extended power-law feature. We examine the spectral index by using both analytical and numerical methods for a variety of physical parameters as such the plasma temperature and the mass accretion rate. The presence of the event horizon as well as the behaviour of the null geodesics in its vicinity largely determine the dependence of the spectral index on the flow parameters. We come to the conclusion that the bulk motion of a converging flow is more efficient in upscattering photons than thermal Comptonization provided that the electron temperature in the flow is of order of a few keV or less. In this case, the spectrum observed at infinity consists of a soft component produced by those input photons that escape after a few scatterings without any significant energy change and of hard component (described by a power law) produced by the photons that underwent significant upscattering. The luminosity of the power-law component is relatively small compared to that of the soft component. For accretion into black hole the spectral energy index of the power-law is always higher than one for plasma temperature of order of a few keV. This result suggests that the bulk motion Comptonization might be responsible for the power-law spectra seen in the black-hole X-ray sources.Comment: 31 pages, 3 figures; Astrophysical Journal accepte