Search results for "Sign"
showing 10 items of 14733 documents
Space-by-Time Modular Decomposition Effectively Describes Whole-Body Muscle Activity During Upright Reaching in Various Directions
2017
The modular control hypothesis suggests that motor commands are built from precoded modules whose specific combined recruitment can allow the performance of virtually any motor task. Despite considerable experimental support, this hypothesis remains tentative as classical findings of reduced dimensionality in muscle activity may also result from other constraints (biomechanical couplings, data averaging or low dimensionality of motor tasks). Here we assessed the effectiveness of modularity in describing muscle activity in a comprehensive experiment comprising 72 distinct point-to-point whole-body movements during which the activity of 30 muscles was recorded. To identify invariant modules o…
Developments in the biomechanics and equipment of Olympic cross-country skiers
2018
Source at: http://doi.org/10.3389/fphys.2018.00976 Here, our aim was to describe the major changes in cross-country (XC) skiing in recent decades, as well as potential future developments. XC skiing has been an Olympic event since the very first Winter Games in Chamonix, France, in 1924. Over the past decades, considerable developments in skiing techniques and improvements in equipment and track preparation have increased skiing speed. In contrast to the numerous investigations on the physiological determinants of successful performance, key biomechanical factors have been less explored. Today’s XC skier must master a wide range of speeds, terrains, and race distances and formats (e.g., dis…
Alleviating Class Imbalance Problem in Automatic Sleep Stage Classification
2022
For real-world automatic sleep-stage classification tasks, various existing deep learning-based models are biased toward the majority with a high proportion. Because of the unique sleep structure, most of the current polysomnography (PSG) datasets suffer an inherent class imbalance problem (CIP), in which the number of each sleep stage is severely unequal. In this study, we first define the class imbalance factor (CIF) to describe the level of CIP quantitatively. Afterward, we propose two balancing methods to alleviate this problem from the dataset quantity and the relationship between the class distribution and the applied model, respectively. The first one is to employ the data augmentati…
A Telemetry, Tracking, and Command Antennas System for Small-Satellite Applications
2019
Circularly polarized (CP) antennas are used in space applications for telemetry tracking and command (TT&
Architettura e natura nei centri minori in Sicilia. Esperienze temporanee di progetto: la cascata di San Nicola nella valle di Bolognetta
2021
The current Covid-19 emergency has revealed the crucial role of the health issue, not only in terms of healthcare facilities, but also in new ways to get better, spend more free time outdoors, eat healthy and revive the economies of Local communities. Action research takes on a leading role of the Recovery Fund, of the Green New Deal in order to identify better opportunities and strategies, increasing administrative capacities and skills in small towns, through a better use of available European, national and regional funds aimed at regenerate places that until yesterday were considered on the margins. The small towns must have territorial projects capable of combining development and susta…
Commentary: Long-term Practice with Domain-Specific Task Constraints Influences Perceptual Skills.
2018
Right to the Future
2017
During the last decade, the city of Palermo has been undergoing relevant transformations from various perspectives. This has been the consequences of a multitude of circumstances, European financial crisis, migrants/refugees crisis, a new administration of the city and an increased awareness and responsibility among the citizens. Various national and international recognitions (Italian Cultural Capital 2018, the European Biennial of Contemporary Art, Manifesta 12, Youth Capital 2017) have confirmed that they are on the right path. This positive moment has been launched and, progressively, rid- den by many young professionals that decided to challenge the present situation by investing their…
La 5th IABR di Rotterdam: How do we go about making city?
2012
The projects shown during the 5th IABR (International Architecture Biennale Rotterdam) "Making City", hold in Rotterdam in 2012, have treated the topic linked to the development of some specific contests, through the individuation of many factors which influence the urban planning, as global tendencies, cooperation and smart connections: these are necessary strategies to define a Smart City. They are connected not only to the infrastructures and to digital connections, but also to the business, understanding of technology, users for urban planning and control of features from which depends the success of future cities. From the integration’s ability of Architecture, urban planning and lands…
Smart Technology for the passive house
2013
Planning for sustainable policies aimed at identifying Smart urban spaces is determined by the parameters of Smart Cities model that encourage the production of intelligent building for construction energy efficient. The proposed article analyzes the effectiveness of the passive house in the Mediterranean area, offered by traditional building techniques, proposing a re-reading technology for the detection of a smart design methodology that can lead to the use of technologies with high energy efficiency.