300 research outputs found
Passive mobile data for studying seasonal tourism mobilities: an application in a Mediterranean Coastal destination
The article uses passive mobile data to analyse the complex mobilities that occur in a coastal
region characterised by seasonal patterns of tourism activity. A large volume of data generated by
mobile phone users has been selected and processed to subsequently display the information in the
form of visualisations that are useful for transport and tourism research, policy, and practice. More
specifically, the analysis consisted of four steps: (1) a dataset containing records for four days—two
on summer days and two in winter—was selected, (2) these were aggregated spatially, temporally,
and differentiating trips by local residents, national tourists, and international tourists, (3) origindestination matrices were built, and (4) graph-based visualisations were created to provide evidence
on the nature of the mobilities affecting the study area. The results of our work provide new evidence
of how the analysis of passive mobile data can be useful to study the effects of tourism seasonality in
local mobility patterns
Leveraging Container Technologies in a GIScience Project: A Perspective from Open Reproducible Research
Scientific reproducibility is essential for the advancement of science. It allows the results of previous studies to be reproduced, validates their conclusions and develops new contributions based on previous research. Nowadays, more and more authors consider that the ultimate product of academic research is the scientific manuscript, together with all the necessary elements (i.e., code and data) so that others can reproduce the results. However, there are numerous difficulties for some studies to be reproduced easily (i.e., biased results, the pressure to publish, and proprietary data). In this context, we explain our experience in an attempt to improve the reproducibility of a GIScience project. According to our project needs, we evaluated a list of practices, standards and tools that may facilitate open and reproducible research in the geospatial domain, contextualising them on Peng’s reproducibility spectrum. Among these resources, we focused on containerisation technologies and performed a shallow review to reflect on the level of adoption of these technologies in combination with OSGeo software. Finally, containerisation technologies proved to enhance the reproducibility and we used UML diagrams to describe representative work-flows deployed in our GIScience project
Development of a Common Framework for Analysing Public Transport Smart Card Data
The data generated in public transport systems have proven to be of great importance in improving knowledge of public transport systems, being very valuable in promoting the sustainability of public transport through rational management. However, the analysis of this data involves numerous tasks, so that when the value of analysing the data is finally verified, the effort has already been very great. The management and analysis of the collected data face some difficulties. This is the case of the data collected by the current automated fare collection systems. These systems do not follow any open standards and are not usually designed with a multipurpose nature, so they do not facilitate the data analysis workflow (i.e., acquisition, storage, quality control, integration and quantitative analysis). Intending to reduce this workload, we propose a conceptual framework for analysing data from automated fare collection systems in mobility studies. The main components of this framework are (1) a simple data model, (2) scripts for creating and querying the database and (3) a system for reusing the most useful queries. This framework has been tested in a real public transport consortium in a Spanish region shaped by tourism. The outcomes of this research work could be reused and applied, with a lower initial effort, in other areas that have data recorded by an automated fare collection system but are not sure if it is worth investing in exploiting the data. After this experience, we consider that, even with the legal limitations applicable to the analysis of this type of data, the use of open standards by automated fare collection systems would facilitate the use of this type of data to its full potential. Meanwhile, the use of a common framework may be enough to start analysing the data
Data on records of environmental phenomena using low-cost sensors in vineyard smallholdings
Inadequate weather conditions are one of the main threats to the correct development of sensitive crops, where a bad situation can lead to greater stress on plants and their weakness against various diseases. This statement is especially decisive in the cultivation of the vineyard. Meteorological monitoring of vineyard parcels is vital to detect and prevent possible fungal diseases. The development of new Information and Communication Technologies, linked to the Smart Farming movement, together with the reduced cost of electronic components, have favoured a greater availability of meteorological monitoring stations to get to know first-class hand the state of the vineyard smallholdings. This work provides a set of over 750,000 environmental raw data records collected by low-cost Internet of Things nodes, primarily located within vineyard smallholdings. The published observations were collected between 2018-04-01 and 2018-10-31 and were validated in previous research to determine the data's reliability
A geotagged image dataset with compass directions for studying the drivers of farmland abandonment
In this work, we present a dataset containing a collection of pictures taken during the fieldwork of a farmland abandonment study. Data was taken in 2010 with a compact camera that incorporates GPS and a digital compass sensor. The photographs were taken as part of a GIS database. Using their Exif metadata, we created a layer of geographic fields of view (geoFOVs) that can be used to perform specific spatial queries. The dataset contains 2,235 pictures and GIS layers of geoFOVs contextualising the agricultural plots being photographed. The dataset is hosted in a Zenodo dataset repository
Relación del peso máximo con la fuerza aplicada y la potencia producida en un test creciente, en el ejercicio de press de banca plano con barra libre, en levantadores
Se evaluaron 9 levantadores que realizaron 2 test, en el ejercicio de press de banca plano con barra libre. Un test progresivo con pesos ligeros a máximos (TPR), y el test de una máxima repetición (1 MRD). Se midió la fuerza (f), velocidad (v) y potencia (p) con cada peso movilizado, se determinó el máximo peso desplazado en una única repetición (1 MR). Se observaron correlaciones significativas entre el valor de la 1 MR obtenida en el test de 1 MRPr y el de 1 MRD, entre la potencia máxima (absoluta y relativa al peso corporal) y la 1 MR absoluta y relativa al peso corporal. No se observaron diferencias significativas (p < 0,05) entre el valor de la 1 MR obtenida en el test progresivo (1 MRPr) y el alcanzado en el test de 1 MRD. Se acepta la aplicación del test progresivo (TPR) para determinar los niveles de f, v, p, el valor de la 1 MR en kg, asà como localizar los porcentajes de peso, respecto al nivel de la 1 MR, en donde se alcanzan los valores más altos de potencia mecánica, y estimar las adaptaciones funcionales inducidas por los entrenamientos de fuerza
Relació del pes mà xim amb la força aplicada i la potència produïda en un test creixent, en l’exercici de press de banca pla amb barra lliure, en aixecadors
Es van avaluar 9 aixecadors que van realitzar 2 tests, en l’exercici de press de banca pla amb barra lliure. Un test progressiu amb pesos lleugers a mà xims (TPR), i el test d’una mà xima repetició (1 MRD). Es va mesurar la força (f), la velocitat (v) i la potència (p) amb cada pes mobilitzat, es va determinar el pes mà xim desplaçat en una única repetició (1 MR). Es van observar correlacions significatives entre el valor de la  1 MR obtinguda en el test d’1 MRPr i el d’1 MRD, entre la potència mà xima (absoluta i relativa al pes corporal) i la 1 MR absoluta i relativa al pes corporal. No es van observar diferències significatives (p < 0,05) entre el valor de la 1 MR obtinguda en el test progressiu (1 MRPr) i l’assolit al test d’1 MRD. S’accepta l’aplicació del test progressiu (TPR) per determinar els nivells d’f, v, p, el valor de la 1 MR en kg, igual com per localitzar els percentatges de pes, respecte al nivell de la 1 MR, on s’aconsegueixen els valors més alts de potència mecà nica, i estimar les adaptacions funcionals induïdes pels entrenaments de força
Relationship between shoulder pain and skin temperature measured by infrared thermography in a wheelchair propulsion test
Wheelchair Users (WCUs) depend on their upper extremities for their daily living. Therefore, it is not unusual to find that shoulder pain (SP) is a problem for WCUs and reduces their participation in sport and leisure activities
Bicarbonato ingestion has no ergogenic effect on consecutive all out sprint test in MWX elite cyclists
The aim of the present study was to examine the effect of sodium bicarbonate ingestion on consecutive "all out" sprint tests, analyzing the acid-base status and its influence on performance and perceived effort. Ten elite bicycle motocross (BMX) riders (20.7 ± 1.4 years, training experience 8-12 years) participated in this study which consisted of two trials. Each trial consisted of three consecutive Wingate tests (WTs) separated by 15 min recovery. Ninety minutes prior to exercise subjects ingested either NaHCO(3) (-) (0.3 g kg(-1) body weight) or placebo. Blood samples were collected for the assessment of blood acid-base status: bicarbonate concentration ([HCO(3) (-)]), pH, base excess (BE) and blood lactate concentration ([La(-)]). Performance variables of peak power (PP), mean power (MP), time to peak power and fatigue index were calculated for each sprint. Significant differences (p < 0.05) were observed in acid-base variables [pH before WT1: 7.47 ± 0.05 vs. 7.41 ± 0.03; [HCO(3) (-)] before WT1: 29.08 ± 2.27 vs. 22.85 ± 0.24 mmol L(-1) (bicarbonate vs. placebo conditions, respectively)], but there were not significant differences in performance variables between trials [PP WT1: 1,610 ± 373 vs. 1,599 ± 370 W; PP WT2: 1,548 ± 460 vs. 1,570 ± 428 W; PP WT3: 1,463 ± 361 vs. 1,519 ± 364 W. MP WT1: 809 ± 113 vs. 812 ± 108 W; MP WT2: 799 ± 135 vs. 799 ± 124 W; MP WT3: 762 ± 165 vs. 782 ± 118 W (bicarbonate vs. placebo conditions, respectively)]. Rating of perceived effort (RPE) was not influenced nor ratings of perceived readiness. Sodium bicarbonate ingestion modified significantly the blood acid-base balance, although the induced alkalosis did not improve the Wingate test performance, RPE and perceived readiness across three consecutive WTs in elite BMX cyclists
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