The Anatomy of Knowledge: Quantitative and Qualitative Analysis of the Evolution of Ideas in Space Syntax Conference Articles (1997-2017)

Since its inception in the 1970s, space syntax has matured into a theory and a method comprising a set of recurring theoretical and analytical concepts, as well as new ones emerging through the years. How can we trace the evolution of the field through language? How can we analyse the development of ideas in space syntax research? What can we learn from this evolution about knowledge creation in this area? Recognising that language is central to the development of ideas in any field, this paper uses automated text-analyses, focusing more specifically on all papers published in the space syntax symposia proceedings from 1997 to 2017. The purpose is to trace the trajectory of ideas as they were elaborated, used and perhaps changed in the collective work of authors researching within this field in different parts of the world. Firstly, we identify concepts and technical terminology in the field through a combined quantitative and qualitative text analysis. Secondly, we statistically assess the use of these terms, revealing patterns and trends in the evolution of knowledge in space syntax. Thirdly, we compare patterns between established concepts and categories that stabilise over time with concepts emerging more recently. The results from our analysis of networks of concept relationships suggest that: (i) concepts and terms evolve in dependent trajectories; (ii) ideas have evolutionary developments, with some emerging and gaining growing attention, while others showing clear signs of stability, and others losing centrality over time, including networks of what can be termed as ‘canonical’ concepts. We have also identified (iii) an overall decline in the use of early space syntax concepts rooted in social theory and anthropology; (iv) a trend of decreasing conceptual novelty over time; (v) traces of increasing influence by other fields; and finally (vi) signs of a clear ‘technological turn’ in the field

Validation of accelerometer data for measuring impacts during jumping and landing tasks

The purpose of this study was to examine the validity of a commercially-available accelerometer, as used in the field team sports context. Ten adult participants completed two movement tasks: 1) a drop landing task from 30-cm, 40-cm and 50-cm heights [DLAND], and 2) a countermovement jumping task [CMJ]. Peak acceleration values, both smoothed and unsmoothed, occurring in the longitudinal axis [Y] and calculated to produce vector magnitude values [VM], were compared to peak vertical ground reaction force values [VGRF]. All acceleration measures were moderately correlated (r = 0.45 &ndash; 0.70), but also significantly higher than weight-adjusted VGRF, for both tasks. Though the raw acceleration measures were mostly above the acceptable limit for error (&gt; 20%), the smoothed data had reduced error margins by comparison, most of which were well below 20%. These results provide some support for the continued use of accelerometer data, particularly when smoothed, to accurately quantify impacts in the field.<br /

VALIDATION OF ACCELEROMETER DATA FOR MEASURING IMPACTS DURING JUMPING AND LANDING TASKS

The purpose of this study was to examine the validity of a commercially-available accelerometer, as used in the field team sports context. Ten adult participants completed two movement tasks: 1) a drop landing task from 30-cm, 40-cm and 50-cm heights [DLAND], and 2) a countermovement jumping task [CMJ]. Peak acceleration values, both smoothed and unsmoothed, occurring in the longitudinal axis [Y] and calculated to produce vector magnitude values [VM], were compared to peak vertical ground reaction force values [VGRF]. All acceleration measures were moderately correlated (r = 0.45 – 0.70), but also significantly higher than weight-adjusted VGRF, for both tasks. Though the raw acceleration measures were mostly above the acceptable limit for error (> 20%), the smoothed data had reduced error margins by comparison, most of which were well below 20%. These results provide some support for the continued use of accelerometer data, particularly when smoothed, to accurately quantify impacts in the field

Qualidade fisiológica de sementes de milheto armazenadas.

A cultura do trigo tem grande importância comercial, contudo ainda são escassos, resultados científicos referente ao uso de herbicidas nesta cultura. Em termos de mercado é notório a pequena quantidade de produtos recomendados para o controle de plantas daninhas em pós-emergência desta cultura, e limitadas são as informações sobre os efeitos que estes causam. Neste contexto, o objetivo do presente trabalho foi avaliar o desempenho agronômico e a qualidade fisiológica das sementes sob o efeito da aplicação de doses crescentes de Metsulfuron methyl (Ally) em estádios de desenvolvimento diferentes, assumindo que altas doses de Ally podem ser utilizadas em dois estádios de desenvolvimento e supondo que o emprego de altas doses em combinação com o estádio de desenvolvimento possa afetar a planta. Com este intuito foi conduzido um ensaio a campo, no Município de Marialva - PR, com delineamento em blocos completos casualizados, com quatro repetições, em que os tratamentos foram compostos por cinco doses do herbicida Ally O; 30; 60; 90; 120g i.a. ha; aplicadas em dois estádios da cultura: 4 e 10.4. As variáveis avaliadas foram: produtividade, massa de mil sementes, germinação e vigor (pela primeira contagem do teste de germinação). A partir dos resultados obtidos, pode-se inferir que: o herbicida Ally aplicado em altas doses no período reprodutivo tende a diminuir a produtividade (P<O, 1 O) e o vigor (P<0,03) de suas sementes, porém aplicações no vegetativo não apresentam efeitos significativos ai, 5 e 10% de probabilidade, com relação aos caracteres observados aqui.Edição dos Resumos do XVI Congresso Brasileiro de Sementes, Curitiba, PR, set. 2003

Efeito de fungicidas e inseticidas em sementes peletizadas de sorgo.

Edição dos resumos do 18º Congresso Brasileiro de Sementes, 2013, Florianópolis

Dano mecânico em sementes peletizadas de sorgo sacarino.

Edição dos resumos do 18º Congresso Brasileiro de Sementes, 2013, Florianópolis

QUANTIFYING CRITICAL FEATURES OF UNDERWATER STROKE TECHNIQUE IN FREESTYLE SWIMMING

The purpose of this study was to establish methods for accurately quantifying the time of entry, catch and release in freestyle swimming. The methods allow ready data collection, digitising and analysis without recourse to expensive cameras and diglising equipment thereby enabling analysis by coaches as well as biomechanists. Interpolation procedures to improve the accuracy of estimating the time of occurrence of the events were developed