Search results for "Move"

The bulbar respiratory centre in the rabbit. I. Changes of respiratory parameters caused by intermittent electrical bulbar stimulation during inspira…

1976

In anesthetized rabbits, spirogram and diaphragmatic activity were examined during electrical stimulation of the bulbar lateral reticular formation. The activity of bulbar respiratory neurons was recorded contra-or ipsilaterally to the stimulation site. One volley of repetitive stimuli per breath was delivered during either inspiration or expiration. 1. Each volley of about 120 ms duration at 100 pulses per second, delivered early ininspiration, caused an immediate and transient inhibition of the diaphragmatic activity. An inspiratory, rebound comprising lengthening of inspiration and increase in tidal volume occurred. a) “Inspiratory” and “expiratory-inspiratory” phase-spanning neurons exh…

Superresolved imaging of remote moving targets.

2006

We present a superresolving approach that allows one to exceed the diffraction limit and recover highly resolved contours of moving targets from a sequence of low-resolution images. The presented approach is suitable for remote sensing applications. The resolution decoding algorithm that is used to recover the high-resolution features of the target can be run partially via optical means and that way can be used to reduce the required computational complexity.

Imaging Performance of a Diffractive Corneal Inlay for Presbyopia in a Model Eye

2019

[EN] In this work we evaluated the imaging properties of the Diffractive Corneal Inlay (DCI), a novel type of corneal implant working by diffraction that we proposed for the treatment of presbyopia. ZEMAX OpticStudio software was employed for the numerical assessment, with simulations performed in a human-based eye model. In the ray tracing analysis, we used the Modulation Transfer Function (MTF), the Area under the MTF (AMTF), and the Point Spread Function (PSF). The theoretical performance of the DCI under different situations was evaluated in comparison with a commercially available pinhole based corneal inlay. Finally, real images were obtained experimentally in vitro in a model eye wit…

Research of organic agricultural production support in Poland

2017

The features of supporting organic production in Poland are analyzed in the article. Poland is characterized by the largest employment of the population and the number of farms in the organic sector among the countries of Europe. Despite the favorable natural and climatic conditions, the scientific and practical base, significant areas occupied by organic production, the powerful export potential of the country, the proportion of organic operators in the structure of agricultural producers is very low. The main obstacles to the transition to organic principles are the poor development of environmental infrastructure and support from various services of the entire agricultural system. Theref…

Exploring Collective Action Dynamics in Online Communities from a Critical Realist Perspective

2016

Scholars have been increasingly studying Online Communities (OCs) for a variety of purposes, focusing on issues like individual motivation, knowledge sharing, and governance structure. Few studies focused on the entanglement among technology, people, and organizational structures that support working dynamics within OCs. This paper addresses this issue by exploring causal mechanisms sustaining the collective actions of OCs through a retroduction process. Based on the study of the OC of an Italian political movement, the Five Star Movement, the concept of affordance is involved to describe the generative mechanisms and new affordances are identified on collective action within OCs. Our work …

Review: Kaarle Nordenstreng, Ulf Jonas Björk, Frank Beyersdorf, Svennik Høyer and Epp Lauk 2016. A History of the International Movement of Journalis…

2017

From protest to parliament : The role of digital technologies within an online community

2020

Our teaching case introduces the story of how the Italian Five Star Movement used digital technologies in the growth from a personal blog discussing politics back in 2005 to the most voted party in the Italian election in 2018, becoming part of the government. The Italian Five Star Movement is among the largest eParticipation initiatives globally. It is (almost) totally organized through the use of digital platforms. Members form online communities and are continuously invited to discuss and make decisions that end up into Italian politics. Adopting a chronological perspective, we describe the development of the Italian Five Star Movement, focusing on their use of digital technologies at va…

Emission standards versus immission standards for assessing the impact of urban drainage on ephemeral receiving water bodies

2010

In the past, emission standard indicators have been adopted by environmental regulation authorities in order to preserve the quality of a receiving water body. Such indicators are based on the frequency or magnitude of a polluted discharge that may be continuous or intermittent. In order to properly maintain the quality of receiving waters, the Water Framework Directive, following the basic ideas of British Urban Pollution Manual, has been established. The Directive has overtaken the emission-standard concept, substituting it with the stream-standard concept that fixes discharge limits for each polluting substance depending on the self-depurative characteristics of receiving waters. Stream-…

Radical Experiences of Portuguese Social Workers in the Vanguard of the 1974 Revolution

2019

This article focuses on the contribution of social workers to the Portuguese democratic transition in the 1970s. Their involvement in urban social mobilizations and in the cooperative movement will offer a perspective on the participation of social workers alongside the Revolutionary process and how they, through engaging with social mobilization, grass-roots initiatives and socio-political activism deployed practices consistent with radical social work frames. It is argued that the Revolution provided the structural conditions for social workers to engage with radical practice and that their intervention constituted a form of agency for socio-political transformation while influencing prof…

Muscle effort is best minimized by the right-dominant arm in the gravity field

2021

AbstractThe central nervous system (CNS) is thought to develop motor strategies that minimize various hidden criteria, such as end-point variance or effort. A large body of literature suggests that the dominant arm is specialized for such open-loop optimization-like processes whilst the non-dominant arm is specialized for closed-loop control. Building on recent results suggesting that the brain plans arm movements that takes advantage of gravity effects to minimize muscle effort, the present study tests the hypothesized superiority of the dominant arm motor system for effort minimization. Thirty participants (22.5 ± 2.1 years old; all right-handed) performed vertical arm movements between t…