Live 4 Life: A spatial performance tool to play the ephemeral and improvise with space and playback speeds

2021 ◽  
Vol 26 (1) ◽  
pp. 89-99
Author(s):  
Christophe Lengelé
Keyword(s):  
Spatial Audio ◽  
The Core ◽  
Spatial Performance ◽  
Future Events ◽  
Computer Based ◽  
Spectral Control ◽  
Computer Keyboard ◽  
Spatio Temporal ◽  
Sound Objects ◽  
Tactile Interfaces

This article describes my own way to improvise with space using a computer-based tool implemented in SuperCollider. The objective of this spatial performance tool is to have an ergonomic spatio-temporal and spectral control over numerous sound objects in real time, in order to alternate between spatialised polyrhythms and textures. After a brief review of spatial audio context, the spatial performance tool is summarised and detailed here by focusing on one of the core parameters: the playback speeds, which can act both on rhythm and space and enable among others the spatio-temporal articulation of the performance. As well as discussing the word ‘comprovisation’ and my conception of human–computer improvisation, the possibilities and approach of the tool in terms of improvisation and controllerism are illustrated through the use and combination of different controllers (computer keyboard, tactile interfaces, force touch sensors). Whereas some controllers are more dedicated to the selection and triggering of streams of spatialised sound events, others have their own mappings and ways of acting on some parameters (depending on the temporality of the sounds: playing or future events).

Kalmag: a high spatio temporal model of the Geomagnetic field

2021 ◽  
Author(s):  
Julien Baerenzung ◽  
Matthias Holschneider
Keyword(s):  
Geomagnetic Field ◽  
Learning Algorithm ◽  
Dynamical Evolution ◽  
Small Scale ◽  
Large Set ◽  
The Core ◽  
Resolution Model ◽  
Auto Regressive ◽  
Spatio Temporal ◽  
Marine Vessels

<p>We present a new high resolution model of the Geomagnetic field spanning the last 121 years. The model derives from a large set of data taken by low orbiting satellites, ground based observatories, marine vessels, airplane and during land surveys. It is obtained by combining a Kalman filter to a smoothing algorithm. Seven different magnetic sources are taken into account. Three of them are of internal origin. These are the core, the lithospheric  and the induced / residual ionospheric fields. The other four sources are of external origin. They are composed by a close, a remote and a fluctuating magnetospheric fields as well as a source associated with field aligned currents. The dynamical evolution of each source is prescribed by an auto regressive process of either first or second order, except for the lithospheric field which is assumed to be static. The parameters of the processes were estimated through a machine learning algorithm with a sample of data taken by the low orbiting satellites of the CHAMP and Swarm missions. In this presentation we will mostly focus on the rapid variations of the core field, and the small scale lithospheric field.  We will also discuss the nature of model uncertainties and the limitiations they imply.</p>

scholarly journals Needs and expectations of teachers about the Science Museum of Castilla-La Mancha

2007 ◽  
Vol 06 (04) ◽  
pp. A01
Author(s):  
Santiago Langreo
Keyword(s):  
Science Museum ◽  
Democratic Participation ◽  
Science Museums ◽  
Teaching Resources ◽  
Successful Teachers ◽  
The Core ◽  
The People ◽  
La Mancha ◽  
Future Events ◽  
Teaching Learning

After serving the community for seven years, the Science Museum of Castilla-La Mancha (MCCM) has decided to renew itself. In this context, a survey of the needs and expectations of the people to which the museum is dedicated plays a major role for the changes planned to prove successful. Teachers are among the main users of the museum, staying at the core of all teaching-learning processes, and play a role as mediators between science and students. This paper analyses the judgements made by teachers about various types of events and teaching resources which are normally provided by science museums and, more specifically, the Science Museum of Castilla-La Mancha. Against that backdrop, science (our content), education (our objective) and the democratic participation of teachers will show a clear route to follow if one wants to achieve quality for our institution and its future events.

OPGEN: A System to Identify and Evaluate Potential Applications of Knowledge Based Systems

1992 ◽  
Author(s):  
Samir Rohatgi ◽  
James H. Oliver ◽  
Stuart S. Chen
Keyword(s):  
Knowledge Acquisition ◽  
Knowledge Base ◽  
Knowledge Based Systems ◽  
The Core ◽  
Knowledge Based ◽  
Evaluation Functions ◽  
Potential Applications ◽  
Computer Based ◽  
Suitable System ◽  
Overall Effectiveness

Abstract This paper describes the development of OPGEN (Opportunity Generator), a computer based system to help identify areas where a knowledge based system (KBS) might be beneficial, and to evaluate whether a suitable system could be developed in that area. The core of the system is a knowledge base used to carry out the identification and evaluation functions. Ancillary functions serve to introduce and demonstrate KBS technology to enhance the overall effectiveness of the system. All aspects of the development, from knowledge acquisition through to testing are presented in this paper.

scholarly journals Spatio-Temporal Change Characteristics of Spatial-Interaction Networks: Case Study within the Sixth Ring Road of Beijing, China

2019 ◽  
Vol 8 (6) ◽  
pp. 273 ◽  
Author(s):  
Jing Yang ◽  
Disheng Yi ◽  
Bowen Qiao ◽  
Jing Zhang
Keyword(s):  
Urban Areas ◽  
Traffic Management ◽  
Spatial Interaction ◽  
Small World ◽  
Core Layer ◽  
Vital Role ◽  
Interaction Networks ◽  
Ring Road ◽  
The Core ◽  
Spatio Temporal

Spatial-interaction networks are an important factor in geography that could help in the exploration of both human spatial-temporal behavior and the structure of urban areas. This paper analyzes changes in the spatio-temporal characteristics of the Spatial-Interaction Networks of Beijing (SINB) in three consecutive steps. To begin with, we constructed 24 sequential snapshots of spatial population interactions on the basis of points of interest (POIs) collected from Dianping.com and various taxi GPS data in Beijing. Then, we used Jensen–Shannon distance and hierarchical clustering to integrate the 24 sequential network snapshots into four clusters. Finally, we improved the weighted k-core decomposition method by combining the complex network method and weighted distance in a geographic space. The results showed: (1) There are three layers in the SINB: a core layer, a bridge layer, and a periphery layer. The number of places greatly varies, and the SINB show an obvious hierarchical structure at different periods. The core layer contains fewer places that are between the Second and Fifth Ring Road in Beijing. Moreover, spatial distribution of places in the bridge layer is always in the same location as that of the core layer, and the quantity in the bridge layer is always superior to that in the core layer. The distributions of places in the periphery layer, however, are much greater and wider than the other two layers. (2) The SINB connected compactly over time, bearing much resemblance to a small-world network. (3) Two patterns of connection, each with different connecting ratios between layers, appear on weekdays and weekends, respectively. Our research plays a vital role in understanding urban spatial heterogeneity, and helps to support decisions in urban planning and traffic management.

Globalization Theory, Media-Centrism and Neoliberalism: A Critique of Recent Intellectual Trends

2011 ◽  
Vol 38 (2) ◽  
pp. 281-301 ◽  
Author(s):  
Marko Ampuja
Keyword(s):  
Global Media ◽  
The Core ◽  
Spatio Temporal ◽  
Dramatic Shift ◽  
Manuel Castells ◽  
Globalization Theory

This article develops a critique of academic globalization theory from the viewpoint of media and communications. First, it discusses the overall importance of media and communications for the core argument of globalization theory, namely that the contemporary period has witnessed a dramatic shift in the spatio-temporal constitution of society. This is followed by a reconstruction and critique of such a line of reasoning in the work of two notable globalization theorists, Manuel Castells and Arjun Appadurai. It is argued that their positions are founded on an overtly media-centric and unhistorical treatment of globalization that lacks a critical materialist analysis of how the global media sphere has developed in the recent decades. It is further argued that such positions can be understood in the context of the rise of neoliberalism that overlaps with the development of globalization theory.

scholarly journals Secondary structure of dengue virus type 4 3′ untranslated region: impact of deletion and substitution mutations

2006 ◽  
Vol 87 (11) ◽  
pp. 3291-3296 ◽  
Author(s):  
Tammy A. Romero ◽  
Ebenezer Tumban ◽  
Jeongwon Jun ◽  
William B. Lott ◽  
Kathryn A. Hanley
Keyword(s):  
Secondary Structure ◽  
Dengue Virus ◽  
Untranslated Region ◽  
Modes Of Transmission ◽  
The Core ◽  
Homologous Sequences ◽  
Langat Virus ◽  
Computer Based ◽  
Substitution Mutations

Several studies have generated computer-based predictions of secondary structure of the 3′ untranslated region (UTR) of Dengue virus (DEN); however, experimental verification of the formation of these structures in vitro is lacking. This study assessed the congruence of Mfold predictions of secondary structure of the core region of the DEN type 4 3′ UTR with nuclease maps of this region. Maps and predictions were largely consistent. Maps supported the existence of previously predicted pseudoknots and identified putative regions of dynamic folding. Additionally, this study investigated previously identified conserved elements in the flavivirus 3′ UTR that differ among viruses with different modes of transmission. Specific regions of mosquito-borne DEN type 4 were either deleted or replaced with homologous sequences from tick-borne Langat virus. All of these mutations caused substantial distortion of secondary structure, yet viruses carrying these mutations were viable.

scholarly journals Effects of Reperfusion on ADC and CBF Pixel-by-Pixel Dynamics in Stroke: Characterizing Tissue Fates using Quantitative Diffusion and Perfusion Imaging

2004 ◽  
Vol 24 (3) ◽  
pp. 280-290 ◽  
Author(s):  
Qiang Shen ◽  
Marc Fisher ◽  
Christopher H Sotak ◽  
Timothy Q Duong
Keyword(s):  
Brain Injury ◽  
Statistical Prediction ◽  
Ischemic Brain Injury ◽  
Ischemic Brain ◽  
Biologically Relevant ◽  
The Core ◽  
Powerful Approach ◽  
Apparent Diffusion ◽  
Spatio Temporal ◽  
Irreversible Injury

The effects of reperfusion on the spatiotemporal dynamics of transient (60 minutes) focal ischemic brain injury in rats were evaluated on a pixel-by-pixel basis using quantitative cerebral blood flow (CBF) and apparent diffusion coefficient (ADC) measurements every 30 minutes for 3 hours and compared to post-mortem histology at 24 hours. Four biologically relevant clusters were classified based on ADC (0.53 ± 0.02 × 10−3mm2/s, SD) and CBF (0.30 ± 0.09ml/g/min) viability thresholds, namely: (1) the “normal” cluster with ADC and CBF > thresholds; (2) the “mismatch” cluster with ADC > threshold but CBF < threshold; (3) the “core” cluster with ADC and CBF < thresholds; and (4) “non-nourishing reperfusion zone” where ADC < threshold but CBF > threshold. The spatio-temporal progression of tissue volumes, ADC and CBF of each cluster were evaluated. Pixels of each cluster on the CBF-ADC space were mapped onto the image space. Following reperfusion, 28% of the “core” pixels and 90% of the “mismatch” (defined at 60 minutes) pixels were salvaged at 180 minutes, which correlated with histology. The ADC and CBF of subsequently salvaged tissues were significantly higher than those became infarcted. Salvaging “core” pixels indicated that reduced ADC was not synonymous with irreversible injury; duration of exposure and severity of reduced ADC and CBF were likely critical. Projection profiles showed a bimodal ADC, but uni-modal CBF, distributions. The ADC bimodal minima, obtained without histological correlation, were similar to the histology-derived ADC and CBF viability thresholds, and could have potential clinical applications. This study demonstrated a simple but powerful approach to evaluate, on a pixel-by-pixel basis, the spatio-temporal evolution of ischemic brain injury, and a potential for statistical prediction of tissue fate.

Spatio-temporal deixis and cognitive models in early Indo-European

2018 ◽  
Vol 29 (1) ◽  
pp. 1-44
Author(s):  
Annamaria Bartolotta
Keyword(s):  
Cognitive Models ◽  
Temporal Sequence ◽  
Point Mapping ◽  
The Past ◽  
European Languages ◽  
Linguistic Evidence ◽  
Future Events ◽  
Spatial Terms ◽  
Spatio Temporal ◽  
Temporal Events

AbstractThis paper is a comparative study based on the linguistic evidence in Vedic Sanskrit and Homeric Greek, aimed at reconstructing the space-time cognitive models used in the Proto-Indo-European language in a diachronic perspective. While it has been widely recognized that ancient Indo-European languages construed earlier (and past) events as in front of later ones, as predicted in the Time-Reference-Point mapping, it is less clear how in the same languages the passage took place from this ‘archaic’ Time-RP model or non-deictic sequence, in which future events are behind or follow the past ones in a temporal sequence, to the more recent ‘post-archaic’ Ego-RP model that is found only from the classical period onwards, in which the future is located in front and the past in back of a deictic observer. Data from the Rigveda and the Homeric poems show that an Ego-RP mapping with an ego-perspective frame of reference (FoR) could not have existed yet at an early Indo-European stage. In particular, spatial terms of front and behind turn out to be used with reference not only to temporal events, but also to east and west respectively, thus presupposing the existence of an absolute field-based FoR which the temporal sequence is metaphorically related to. Specifically, sequence is relative position on a path appears to be motivated by what has been called day orientation frame, in which the different positions of the sun during the day motivate the mapping of front onto ‘earlier’ and behind onto ‘later’, without involving ego’s ‘now’. These findings suggest that early Indo-European still had not made use of spatio-temporal deixis based on the tense-related ego-perspective FoR found in modern languages.

scholarly journals Calculating Therapeutic Compliance

2018 ◽  
pp. 30-51 ◽  
Author(s):  
Martina Klausner
Keyword(s):  
Physical Parameters ◽  
Therapeutic Effects ◽  
Process Data ◽  
Generative Process ◽  
The Core ◽  
Theoretical Approaches ◽  
Therapeutic Measures ◽  
Computer Based ◽  
Technological Processing ◽  
Incremental Process

This article discusses calculation practices in the development of a monitoring device, aimed at improving therapeutic compliance of children and teenagers suffering from a deformation of the spine. In managing the complexities of physical parameters, therapeutic measures and interventions in every day life, numbers are central participants in inferring from and interfering into bodies and behaviours. Numbers are input and output of such monitoring systems, translating, circulating and visualizing body conditions, therapeutic effects and suggesting action. At the core of this generative process of capturing and interpreting data are algorithms as common participants of managing the complexities of vast amounts of data and providing the basis for interference in people’s lives. They process data and provide seemingly unambiguous numerical outcome, based on mathematical-technological processing of information. Attending to the incremental process of “learning algorithms” as central part of the system’s development allows me to describe the robustness of certain modes of inference. Beyond using the specific case as an exemplary for computer-based numerical inference and interference, the article is an attempt to probe and complement two theoretical approaches to the numerical management of complexity: Helen Verran’s focus on numbers’ performative properties and the potential tensions arising from divergent numerical orderings; and Paul Kockelman’s sieving of inferential and indexical chains along the generation of meaning and ontological transformativities.

scholarly journals What is Movement?

2019 ◽  
Vol 7 (1) ◽  
pp. 9
Author(s):  
Nikos C. Apostolopoulos
Keyword(s):  
The Body ◽  
Human Existence ◽  
Temporal Perception ◽  
Human Consciousness ◽  
The Core ◽  
Time Space ◽  
The World ◽  
Spatio Temporal

On the basis of their corporeity humans are not only beings of distance but also the beings of proximity, rooted beings, not only inner worldly but also beings in the world (Patocka, 1998)Over the centuries the dialectical confluence of metaphysics and epistemology has been at the forefront in the attempt to define the concept of what it is to be human and ultimately human existence. The union of several aspects conceived from these two opposite elements has been responsible for the genesis of numerous philosophical terms and ideas such as: rationalism, materialism, socialism and idealism. Although these terms reference something different, what is primarily at the core has been the endeavour to analyse and demonstrate that it is through man’s relationship with nature that one garners the understanding of self. Human consciousness in conjunction with a spatio-temporal perception, defined as movement through the time-space continuum, creates the condition where the possibility of defining the essence of existence may blossom. In this commentary, an effort is made to present movement, specifically its relationship to the “body” as the physical construct for the meaning of self.

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