1,658 research outputs found

    Measurements of minimum bias events, underlying event and particle production properties in ATLAS

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    The measurements of the minimum bias events provide valuable information on the basic properties of the pppp interactions. The results at the new highest energy of pppp collisions, s\sqrt{s} = 13 TeV, obtained using the ATLAS detector, are shown. They include distributions of charged particle pseudorapidity density, transverse momentum and multiplicity. The properties of the underlying event, determined with respect to a leading high-pTp_{T} particle, are also presented. In both cases the new results are compared with those from earlier studies of the pppp collisions at s\sqrt{s} = 7 TeV.Comment: Proceedings of the 23rd Low-x Meeting, Sandomierz, Poland, September 1-5, 2015, 11 pages, 11 figure

    Communication competences of managers in the twenty first century

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    Communication competences of a manager in the 21st century have a significant effect on the creation of a competitive advantage of an organization. They compose an immanent part of behaviours of all persons in an organization responsible for producing the pro-effective culture. They create efficacy, that is effectiveness and efficiency in the realization of its basic aims targets. They affect proper functions of all essential structural units of organizations. Their implementation requires inter alia a heuristic approach to interpersonal communication processes in an organization. Therefore, they can be guided by the following principles: 1. principle of communication dualism – awareness of process ephemerality and multithreading, 2. principle of communication intelligence – adaptiveness of communication, 3. principle of taking into account situational and socio-cultural contexts, 4. principle of individual personality features of partners in the communication process, 5. principle of skilful usage and reading of verbal expressions and non-verbal signals, 6. principle of utilization of knowledge and experience adequately to the situation, 7. principle of high-level ethical behaviours, 8. and principle of self-control

    Smart Kitchens for People with Cognitive Impairments: A Qualitative Study of Design Requirements

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    Individuals with cognitive impairments currently leverage extensive human resources during their transitions from assisted living to independent living. In Western Europe, many government-supported volunteer organizations provide sheltered living facilities; supervised environments in which people with cognitive impairments collaboratively learn daily living skills. In this paper, we describe communal cooking practices in sheltered living facilities and identify opportunities for supporting these with interactive technology to reduce volunteer workload. We conducted two contextual observations of twelve people with cognitive impairments cooking in sheltered living facilities and supplemented this data through interviews with four employees and volunteers who supervise them. Through thematic analysis, we identified four themes to inform design requirements for communal cooking activities: Work organization, community, supervision, and practicalities. Based on these, we present five design implications for assistive systems in kitchens for people with cognitive deficiencies

    Formation of the vertebral arches of the cervical, thoracic and lumbar vertebrae in early human foetuses

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    Fusion of the neural arches was studied in 6 serially sectioned human foetuses aged 9 and 10 weeks. In foetuses of 9 weeks, the completion of arches was observed in the cervical, upper thoracic, and middle thoracic regions of the vertebral column. During the 10th week of development, fusion of neural processes progresses in the lower thoracic and upper three lumbar vertebrae. (Folia Morphol 2010; 69, 3: 177-179

    Innervation of the human cervical and thoracic vertebrae at eight postovulatory weeks

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    The nerves to the cervical and thoracic vertebrae were traced in 10 serially sectioned human embryos. It was found that the vertebral bodies receive nerve fibres from the trunks of the spinal nerves, anterior branches and meningeal branches of the spinal nerves, and from the sympathetic trunks. Slender twigs from the trunk of the spinal nerve arise close to the spinal ganglion and terminate in the posterior and lateral surfaces of the vertebrae. Fibres from the anterior branches of the spinal nerves terminate in the lateral and anterior surfaces of the vertebrae. Thin rami from the sympathetic trunk reach the anterior surface of the vertebrae

    Early foetal development of the articular disc in the human temporomandibular joint

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    In foetuses of 9 and 10 weeks the articular disc presents a more cellular structure with bands of connective tissue fibres. It is connected with the articular capsule and lateral pterygoid muscle. During weeks 11 and 12 there is an increase in collagenous fibres and fusiform cells are located mainly close to the surface of the disc

    The length of the humerus in human embryos at developmental stages 18-23

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    The length of the humerus was measured in 69 staged human embryos at developmental stages 18-23 (7 and 8 weeks). It was found that the length of the humerus increases from 2.0 mm at stage 18 to 5.4 mm at stage 23. There were slight variations at certain of the stages investigated. Asymmetry between limb lengths was not found during the embryonic period under examination

    The Development and Validation of the Technology-Supported Reflection Inventory

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    Reflection is an often addressed design goal in Human-Computer Interaction (HCI) research. An increasing number of artefacts for reflection have been developed in recent years. However, evaluating if and how an interactive technology helps a user reflect is still complex. This makes it difficult to compare artefacts (or prototypes) for reflection, impeding future design efforts. To address this issue, we developed the \emph{Technology-Supported Reflection Inventory} (TSRI), which is a scale that evaluates how effectively a system supports reflection. We first created a list of possible scale items based on past work in defining reflection. The items were then reviewed by experts. Next, we performed exploratory factor analysis to reduce the scale to its final length of nine items. Subsequently, we confirmed test-retest validity of our instrument, as well as its construct validity. The TSRI enables researchers and practitioners to compare prototypes designed to support reflection.Comment: CHI Conference on Human Factors in Computing Systems (CHI '21), May 8--13, 2021, Yokohama, Japa

    The development of the epidural space in human embryos

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    The epidural space is seen in embryos at stage 17 (41 days) on the periphery of the primary meninx. During stage 18 (44 days) the dura mater proper appears and the epidural space is located between this meninx and the perichondrium and contains blood vessels. During the last week of the embryonic period (stages 20–23) the epidural space is evident around the circumference of the spinal cord. On the posterior surface it is found between the dura mater and the mesoderm of the dorsal body wall

    Inertia compensation while scanning screw threads on coordinate-measuring machines

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    Usage of scanning coordinate-measuring machines for inspection of screw threads has become a common practice nowadays. Compared to touch trigger probing, scanning capabilities allow to speed up measuring process while still maintaining high accuracy. However, in some cases accuracy drasticaly depends on the scanning speed. In this paper a compensation method is proposed allowing to reduce the influence of some dynamic effects while scanning screw threads on coordinate-measuring machines
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