Search results for "CROWD"
showing 10 items of 265 documents
Which factors influence orthodontists in their decision to extract? A questionnaire survey
2019
Background To evaluate the relative influence of different criteria in the choice between extraction and nonextraction treatment in current orthodontics, and to assess how the percentage of extractions has evolved over time. Material and methods Pre-treatment records (panoramic radiograph, lateral cephalogram, study casts and photographs) of fourteen cases in permanent dentition (adult or adolescent) with class I molar relationship and moderate anterior crowding were evaluated by 28 orthodontists. For each case, each orthodontist filled out a questionnaire reporting his treatment plan proposal (extraction or nonextraction) and the importance of specific parameters in his decision-making pro…
The potential for pneumococcal vaccination in Hajj pilgrims: expert opinion.
2013
Hajj is the annual pilgrimage to Mecca in the Kingdom of Saudi Arabia, and is one of the largest mass gathering events in the world. Acute respiratory tract infections are very common during Hajj, primarily as a result of close contact among pilgrims, intense congestion, shared accommodation and air pollution. A number of vaccines are (or have been) recommended for Hajj pilgrims in recent years. Several additional vaccines could significantly reduce the morbidity and mortality at Hajj and should be considered in health recommendations for pilgrims. Pneumococcal vaccines (particularly for those aged >65 years) are widely available, and have been shown to reduce the burden of disease associat…
A Phenomenological Operator Description of Dynamics of Crowds: Escape Strategies
2015
Abstract We adopt an operatorial method, based on creation, annihilation and number operators, to describe one or two populations mutually interacting and moving in a two-dimensional region. In particular, we discuss how the two populations, contained in a certain two-dimensional region with a non-trivial topology, react when some alarm occurs. We consider the cases of both low and high densities of the populations, and discuss what is changing as the strength of the interaction increases. We also analyze what happens when the region has either a single exit or two ways out.
Discovery of New Companions to High Proper Motion Stars from the VVV Survey
2013
[abridged] The severe crowding in the direction of the inner Milky Way suggests that the census of stars within a few tens of parsecs in that direction may not be complete. We search for new nearby objects companions of known high proper motion (HPM) stars located towards the densest regions of the Southern Milky Way where the background contamination presented a major problem to previous works. The common proper motion (PM) method was used--we inspected the area around 167 known HPM (>=200 mas/yr) stars: 67 in the disk and 100 in the bulge. Multi-epoch images were provided by 2MASS and the VISTA Variables in Via Lactea (VVV). The VVV is a new on-going ZYJHKs plus multi-epoch Ks survey o…
Citizens AND HYdrology (CANDHY) : conceptualizing a transdisciplinary framework for citizen science addressing hydrological challenges
2021
Widely available digital technologies are empowering citizens who are increasingly well informed and involved in numerous water, climate, and environmental challenges. Citizen science can serve many different purposes, from the "pleasure of doing science" to complementing observations, increasing scientific literacy, and supporting collaborative behaviour to solve specific water management problems. Still, procedures on how to incorporate citizens' knowledge effectively to inform policy and decision-making are lagging behind. Moreover, general conceptual frameworks are unavailable, preventing the widespread uptake of citizen science approaches for more participatory cross-sectorial water go…
Effects of a French remedial program on pupils’ educational outcomes
2018
International audience; Few studies have examined the French “Networks for Specialized Assistance to Pupils in Difficulty” (Rased). In this article, we evaluate the impact of receiving Rased services in the first year of primary schooling on academic success. Using data from a national panel study, we find inconsistency in student selection within Rased. Using matching methods, our results reveal that pupils who benefited from the program school have a higher probability of grade repetition and obtain significantly lower scores on the third grade national assessment, particularly in mathematics, compared to pupils with similar characteristics who did not take part in the program. This impac…
The role of Intellectual Property Rights in the value capturing of crowdsourcing for innovation contests
2017
In this study, we investigate the role of IPR arrangements in crowdsourcing for innovation challenges. Integrating Property Rights Theory and the open innovation literature, we propose that specific challenge attributes affect the seekers organizations’ choice between alternative IPR arrangements and how this choice, in turn, affects the self-selection of external solvers into solving the challenge. We collected multi-source, interview data with open innovation directors and we built a unique data set of 729 awarded challenges broadcasted on InnoCentive platform from 2010 to 2016. Our findings contribute to the emerging literature on open innovation and crowdsourcing literature by bringing …
Real estate crowdfunding: potential in Latvia
2017
Currently the economic environment is changing rapidly. The millennium’s development phase was followed by global financial crisis, which has changed the rules of game for all financial players and made others’ think outside the box. After the economic crisis people started losing trust in traditional financial institutions like banks, where all the processes are still very bureaucratic. Overregulated bank lending system could not satisfy the credit demand of small to medium size enterprises, thus triggering the need for a new, innovative financing model to fill the gap. At the same time, the communication afforded by Internet and information technologies opened up new opportunities. Taking…
‘Back Door Sentencing’ in Italy: Common Reasons and Main Consequences for the Recall of Prisoners
2012
Italian law only provides the general conditions for the institution of recall. It follows that significant discretionary powers are enjoyed by the surveillance judges (and in particular by the Surveillance Tribunal) who evaluate on a case-by-case basis whether the commission of another offence or the infringement of parole conditions demonstrate the offenders' negative attitude to reintegrate into society. However, especially with reference to the commission of serious crimes, the judges' discretionary assessment can result in a restrictive application of the law on recall with the consequence that parolees are returned to prison even when they commit minor violations. The Italian peniten…
Limits in medical care and social relief during the Spanish Civil War in a rear-guard city: the inclusa of the provincial hospital of Valencia.
2016
Due to its geostrategic condition during the Spanish Civil War, Valencia became one of the Republican cities welcoming more refugees, including many children. In this scenario of demographic and health crisis, the town had to restructure the assistance network in order to accommodate thousands of displaced children, who often had their relatives in faraway places. The paper focuses in the progressive rehabilitation undertaken by the Inclusa of Valencia, which was the provincial foundling hospital. This included deep changes both in its operation and in the admission criteria, particularly following the transfer of the Inclusa of Madrid to Valencia. The resulting overcrowding encouraged the …