Results 21 to 30 of about 16,126,972 (306)

P.Y. Galperin's Development of Human Mental Activity [PDF]

open access: yes, 2021
This open access book introduces the legacy of Piotr Galperin to a wider audience of researchers, educators and psychologists. Previous translations of Galperin’s work present only some aspects of his conceptual thinking; however, his main contribution ...
Thomas, Gethin Llewellyn   +4 more
core   +1 more source

Activity Matching with Human Intelligence [PDF]

open access: yes, 2016
Effective matching of activities is the first step toward successful process model matching and search. The problem is nontrivial and has led to a variety of computational similarity metrics and matching approaches, however all still with low performance in terms of precision and recall.
Carlos Rodríguez 0001   +4 more
openaire   +3 more sources

Sensing Human Activity: GPS Tracking [PDF]

open access: yesSensors, 2009
The enhancement of GPS technology enables the use of GPS devices not only as navigation and orientation tools, but also as instruments used to capture travelled routes: as sensors that measure activity on a city scale or the regional scale. TU Delft developed a process and database architecture for collecting data on pedestrian movement in three ...
Stefan van der Spek   +3 more
openaire   +6 more sources

Architecture for organizing context-aware data in smart home for activity recognition system [PDF]

open access: yes, 2013
Knowing human activity in each day is relevant information in several purposes. However, existing activity recognition systems have limitation to identify the human activity because they cannot get the appropriate information for recognition.
Lim, Azman Osman   +9 more
core   +1 more source

Effect of Different Types of Face Masks on the Ventilatory and Cardiovascular Response to Maximal-Intensity Exercise

open access: yesBiology, 2021
The development of new models of face masks makes it necessary to compare their impact on exercise. Therefore, the aim of this work was to compare the cardiopulmonary response to a maximal incremental test, perceived ventilation, exertion, and comfort ...
Miguel A. Rojo-Tirado   +8 more
doaj   +1 more source

The association between reallocations of time and health using compositional data analysis: a systematic scoping review with an interactive data exploration interface

open access: yesInternational Journal of Behavioral Nutrition and Physical Activity, 2023
Background How time is allocated influences health. However, any increase in time allocated to one behaviour must be offset by a decrease in others. Recently, studies have used compositional data analysis (CoDA) to estimate the associations with health ...
Aaron Miatke   +8 more
doaj   +1 more source

Sphingosylphosphorylcholine is an activator of transglutaminase activity in human keratinocytes [PDF]

open access: yesJournal of Lipid Research, 2001
We characterize functional roles of a newly discovered chemical, sphingosylphosphorylcholine (SPC), in the epidermis by elucidating the biological effect of SPC on human keratinocytes in culture. The intracellular calcium level of human keratinocytes was increased by incubation with SPC, but not with sphingosine (SS) or sphingomyelin (SM). The addition
Kazuhiko Higuchi   +6 more
openaire   +3 more sources

The relationship between frequency content and representational dynamics in the decoding of neurophysiological data

open access: yesNeuroImage, 2022
Decoding of high temporal resolution, stimulus-evoked neurophysiological data is increasingly used to test theories about how the brain processes information.
Cameron Higgins   +4 more
doaj   +1 more source

Human Activity Recognition [PDF]

open access: yes, 2005
Motion is an important cue for the human visual system Mobiles have fascinated children, Zeno (circa 500 B.C.) studied moving arrows to pose a paradox and Zeke is investigating the human brain devoted to the understanding of motion. In computer vision research, motion has played an important role for the past thirty years.
openaire   +2 more sources

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