Digital Eisenman, an office of the electronic era

How should an innovative architect react today to the electronic revolution which is taking place? This work explores the answer by looking at the work of New York architect, Peter Eisenman. It includes a selection of excepts from Eisenman's writings and an analysis of some of his projects

Quadri anatomo-istomorfologici su tiroidi di equini normalmente macellati e loro valutazione ai fini di eventuali trattamenti con tireostatici.

Gli Autori descrivono i quadri anatomo-istopatologici colti a carico di tiroidi di equini regolarmente macellati per valutare una possibile somministrazione di sostanze antiormonali utilizzate anche a scopo auxinico

Three\u2010dimensional assessment of upper limb proprioception via a wearable exoskeleton

Proprioception\u2014the sense of body segment\u2019s position and movement\u2014plays a crucial role in human motor control, integrating the sensory information necessary for the correct execution of daily life activities. Despite scientific evidence recognizes that several neurological diseases hamper proprioceptive encoding with consequent inability to correctly perform movements, proprioceptive assessment in clinical settings is still limited to standard scales. Literature on physiology of upper limb\u2019s proprioception is mainly focused on experimental approaches involving planar setups, while the present work provides a novel paradigm for assessing proprioception during single\u2014and multi\u2010joint matching tasks in a three\u2010dimensional workspace. To such extent, a six\u2010degrees of freedom exoskeleton, ALEx\u2010RS (Arm Light Exoskeleton Rehab Station), was used to evaluate 18 healthy subjects\u2019 abilities in matching proprioceptive targets during combined single and multi\u2010joint arm\u2019s movements: shoulder abduction/adduction, shoulder flexion/extension, and elbow flexion/extension. Results provided evidence that proprioceptive abilities depend on the number of joints simultaneously involved in the task and on their anatomical location, since muscle spindles work along their preferred direction, modulating the streaming of sensory information accordingly. These findings suggest solutions for clinical sensorimotor evaluation after neurological disease, where assessing proprioceptive deficits can improve the recovery path and complement the rehabilitation outcomes

Adaptive model-based myoelectric control for a soft wearable arm exosuit: A new generation of wearable robot control

Despite advances in mechatronic design, the widespread adoption of wearable robots for supporting human mobility has been hampered by 1) ergonomic limitations in rigid exoskeletal structures and 2) the lack of human-machine interfaces (HMIs) capable of sensing musculoskeletal states and translating them into robot-control commands. We have developed a framework that combines, for the first time, a model-based HMI with a soft wearable arm exosuit that has the potential to address key limitations in current HMIs and wearable robots. The proposed framework was tested on six healthy subjects who performed elbow rotations across different joint velocities and lifting weights. The results showed that the model-controlled exosuit operated synchronously with biological muscle contraction. Remarkably, the exosuit dynamically modulated mechanical assistance across all investigated loads, thereby displaying adaptive behavior

Robotic Assessment of Wrist Proprioception During Kinaesthetic Perturbations: A Neuroergonomic Approach

Position sense refers to an aspect of proprioception crucial for motor control and learning. The onset of neurological diseases can damage such sensory afference, with consequent motor disorders dramatically reducing the associated recovery process. In regular clinical practice, assessment of proprioceptive deficits is run by means of clinical scales which do not provide quantitative measurements. However, existing robotic solutions usually do not involve multi-joint movements but are mostly applied to a single proximal or distal joint. The present work provides a testing paradigm for assessing proprioception during coordinated multi-joint distal movements and in presence of kinaesthetic perturbations: we evaluated healthy subjects' ability to match proprioceptive targets along two of the three wrist's degrees of freedom, flexion/extension and abduction/adduction. By introducing rotations along the pronation/supination axis not involved in the matching task, we tested two experimental conditions, which differed in terms of the temporal imposition of the external perturbation: in the first one, the disturbance was provided after the presentation of the proprioceptive target, while in the second one, the rotation of the pronation/ supination axis was imposed during the proprioceptive target presentation. We investigated if (i) the amplitude of the perturbation along the pronation/supination would lead to proprioceptive miscalibration; (ii) the encoding of proprioceptive target, would be influenced by the presentation sequence between the target itself and the rotational disturbance. Eighteen participants were tested by means of a haptic neuroergonomic wrist device: our findings provided evidence that the order of disturbance presentation does not alter proprioceptive acuity. Yet, a further effect has been noticed: proprioception is highly anisotropic and dependent on perturbation amplitude. Unexpectedly, the configuration of the forearm highly influences sensory feedbacks, and significantly alters subjects' performance in matching the proprioceptive targets, defining portions of the wrist workspace where kinaesthetic and proprioceptive acuity are more sensitive. This finding may suggest solutions and applications in multiple fields: from general haptics where, knowing how wrist configuration influences proprioception, might suggest new neuroergonomic solutions in device design, to clinical evaluation after neurological damage, where accurately assessing proprioceptive deficits can dramatically complement regular therapy for a better prediction of the recovery path

Staphylococcal bovine mastitis in France: enterotoxins, resistance and the human Geraldine methicillin-resistant Staphylococcus aureus clone

International audienc

Alteraciones Dentarias en Piezas Sometidas a Fuerzas de Ortodoncia con Técnica de Arco Recto

Universidad de Buenos Aires. Facultad de Odontología. Cátedra de Endodoncia. Buenos Aires, Argentina.Universidad de Buenos Aires. Facultad de Odontología. Cátedra de Endodoncia. Buenos Aires, Argentina.Universidad de Buenos Aires. Facultad de Odontología. Cátedra de Endodoncia. Buenos Aires, Argentina.Universidad de Buenos Aires. Facultad de Odontología. Cátedra de Endodoncia. Buenos Aires, Argentina.Universidad de Buenos Aires. Facultad de Odontología. Cátedra de Endodoncia. Buenos Aires, Argentina