Graphical analysis of the movements of a line-following robot

2021 ◽  
Vol 57 (2) ◽  
pp. 023004
Author(s):  
Paulo José Sena dos Santos ◽  
Josemar de Siqueira Vargas ◽  
Amanda Vogel Cé ◽  
Tiago Fernandes Perfeito Correia ◽  
Weslley de Oliveira Dias ◽  
...  
Keyword(s):  
Constant Velocity ◽  
New Technologies ◽  
Graphical Analysis ◽  
Learning Problems ◽  
Graph Interpretation ◽  
Didactic Strategies ◽  
Line Following

Abstract The difficulties in the interpretation of graphs in kinematics have been studied since the 1980s. To try to reduce students’ learning problems, the researchers point to the need for different didactic strategies, some with the use of new technologies. In this context, we present an experimental proposal that uses a line-following robot based on Arduino to teach graph interpretation in movements with constant velocity.

scholarly journals Teachers' Perception of the Students' Foreign Language Learning and the Potential Role of ICT

2019 ◽  
Vol 9 (2) ◽  
pp. 1-18
Author(s):  
María del Carmen Horno Chéliz ◽  
Antonio Sarasa Cabezuelo
Keyword(s):  
Learning Styles ◽  
Language Learning ◽  
Learning Style ◽  
New Technologies ◽  
Foreign Language Learning ◽  
Language Teachers ◽  
Theory And Practice ◽  
Learning Problems ◽  
Relevant Effect ◽  
Teaching Learning

This article focuses on the learning problems that arise in the teaching of second languages. Nowadays, the introduction of new technologies in this field has had a relevant effect by offering new possibilities that did not exist in the analogue era. However, many of the learning problems persist, and one of the causes identified is the change in learning styles. The use of new technologies has fostered an experimental learning style among students. This style is incompatible with traditional classes of theory and practice, in which an intellectual effort is required to understand the theory and then put into practice what has been learned. The present work starts from this reality and tries to provide possible improvements. For this, an analysis of the main problems encountered by the learners in the various linguistic acquisition components (lexicon, grammar and processes of comprehension and production, both oral and written) has been carried out. The method used was a questionnaire answered by 113 active language teachers. After the analysis of the answers received, a series of specific problems of the teaching-learning process was enumerated and different IT applications and ICT resources were searched that could solve or at least minimize them.

scholarly journals Methodologies Gamified as Didactic Resources for Social Sciences

2019 ◽  
Vol 14 (23) ◽  
pp. 193
Author(s):  
Isabel María Gómez-Trigueros
Keyword(s):  
Social Sciences ◽  
Teaching And Learning ◽  
New Technologies ◽  
Likert Scale ◽  
Learning Processes ◽  
Mixed Methodology ◽  
Potential Contribution ◽  
The Future ◽  
Key Competences ◽  
Didactic Strategies

In this paper we analyze the perception of teachers in training about the inclusion of elements of the game in education and its potential contribution to the learning of Social Sciences. First of all, the object of the study is specified; then, an analysis is developed from a mixed methodology, using as a tool a Likert scale questionnaire. Finally, we extract the results that allow us to analyze students who, in the future, will be professors and inform about the value of this type of resources and didactic strategies for the improvement in the teaching and learning processes of Social Sciences content. as well as the acquisition of key competences and the perception of the technologies, by the participating students, teachers in training, students of the Master's Degree in Teaching. In addition, the study establishes the importance for the training of teachers of the use of innovative methodological proposals, based on new technologies.

Record Wear Studies by Scanning Electron Microscopy

1968 ◽  
Vol 26 ◽  
pp. 364-365
Author(s):  
M.D. Coutts ◽  
E.R. Levin ◽  
J.G. Woodward
Keyword(s):  
Electron Microscopy ◽  
Constant Velocity ◽  
Peak Velocity ◽  
Great Depth ◽  
Depth Of Focus ◽  
Sweep Frequency ◽  
Transmission Electron ◽  
Test Record ◽  
Lateral Mode ◽  
Scanning Electron

While record grooves have been studied by transmission electron microscopy with replica techniques, and by optical microscopy, the former are cumbersome and restricted and the latter limited by lack of depth of focus and resolution at higher magnification. With its great depth of focus and ease in specimen manipulation, the scanning electron microscope is admirably suited for record wear studies.A special RCA sweep frequency test record was used with both lateral and vertical modulation bands. The signal is a repetitive, constant-velocity sweep from 2 to 20 kHz having a duration and repetitive rate of approximately 0.1 sec. and a peak velocity of 5.5 cm/s.A series of different pickups and numbers of plays were used on vinyl records. One centimeter discs were then cut out, mounted and coated with 200 Å of gold to prevent charging during examination. Wear studies were made by taking micrographs of record grooves having 1, 10 and 50 plays with each stylus and comparing with typical “no-play” grooves. Fig. 1 shows unplayed grooves in a vinyl pressing with sweep-frequency modulation in the lateral mode.

Principles of Low-Vacuum SEM

1992 ◽  
Vol 50 (2) ◽  
pp. 1304-1305
Author(s):  
Klaus-Ruediger Peters
Keyword(s):  
New Technologies ◽  
High Vacuum ◽  
Optical Microscope ◽  
Specimen Surface ◽  
Electrical Field ◽  
Gaseous Environment ◽  
New Information ◽  
Gas Molecules ◽  
New Interactions ◽  
Gas Pressures

Only recently it became possible to expand scanning electron microscopy to low vacuum and atmospheric pressure through the introduction of several new technologies. In principle, only the specimen is provided with a controlled gaseous environment while the optical microscope column is kept at high vacuum. In the specimen chamber, the gas can generate new interactions with i) the probe electrons, ii) the specimen surface, and iii) the specimen-specific signal electrons. The results of these interactions yield new information about specimen surfaces not accessible to conventional high vacuum SEM. Several microscope types are available differing from each other by the maximum available gas pressure and the types of signals which can be used for investigation of specimen properties.Electrical non-conductors can be easily imaged despite charge accumulations at and beneath their surface. At high gas pressures between 10-2 and 2 torr, gas molecules are ionized in the electrical field between the specimen surface and the surrounding microscope parts through signal electrons and, to a certain extent, probe electrons. The gas provides a stable ion flux for a surface charge equalization if sufficient gas ions are provided.

Structural dynamics of P-type ATPase ion pumps

2019 ◽  
Vol 47 (5) ◽  
pp. 1247-1257 ◽  
Author(s):  
Mateusz Dyla ◽  
Sara Basse Hansen ◽  
Poul Nissen ◽  
Magnus Kjaergaard
Keyword(s):  
Structural Dynamics ◽  
Single Molecule ◽  
New Technologies ◽  
Atp Hydrolysis ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Time Resolved ◽  
Dynamics Simulations ◽  
Types Of Information ◽  
P Type

Abstract P-type ATPases transport ions across biological membranes against concentration gradients and are essential for all cells. They use the energy from ATP hydrolysis to propel large intramolecular movements, which drive vectorial transport of ions. Tight coordination of the motions of the pump is required to couple the two spatially distant processes of ion binding and ATP hydrolysis. Here, we review our current understanding of the structural dynamics of P-type ATPases, focusing primarily on Ca2+ pumps. We integrate different types of information that report on structural dynamics, primarily time-resolved fluorescence experiments including single-molecule Förster resonance energy transfer and molecular dynamics simulations, and interpret them in the framework provided by the numerous crystal structures of sarco/endoplasmic reticulum Ca2+-ATPase. We discuss the challenges in characterizing the dynamics of membrane pumps, and the likely impact of new technologies on the field.

Meiotic CENP-C is a shepherd: bridging the space between the centromere and the kinetochore in time and space

2020 ◽  
Vol 64 (2) ◽  
pp. 251-261
Author(s):  
Jessica E. Fellmeth ◽  
Kim S. McKim
Keyword(s):  
Chromosome Segregation ◽  
New Technologies ◽  
Early Prophase ◽  
Unique Role ◽  
Kinetochore Assembly ◽  
M Phase ◽  
In Vivo Analysis ◽  
Meiosis I

Abstract While many of the proteins involved in the mitotic centromere and kinetochore are conserved in meiosis, they often gain a novel function due to the unique needs of homolog segregation during meiosis I (MI). CENP-C is a critical component of the centromere for kinetochore assembly in mitosis. Recent work, however, has highlighted the unique features of meiotic CENP-C. Centromere establishment and stability require CENP-C loading at the centromere for CENP-A function. Pre-meiotic loading of proteins necessary for homolog recombination as well as cohesion also rely on CENP-C, as do the main scaffolding components of the kinetochore. Much of this work relies on new technologies that enable in vivo analysis of meiosis like never before. Here, we strive to highlight the unique role of this highly conserved centromere protein that loads on to centromeres prior to M-phase onset, but continues to perform critical functions through chromosome segregation. CENP-C is not merely a structural link between the centromere and the kinetochore, but also a functional one joining the processes of early prophase homolog synapsis to late metaphase kinetochore assembly and signaling.

Recent Developments of Ambulatory Assessment Methods

2014 ◽  
Vol 25 (4) ◽  
pp. 279-287 ◽  
Author(s):  
Stefan Hey ◽  
Panagiota Anastasopoulou ◽  
André Bideaux ◽  
Wilhelm Stork
Keyword(s):  
Real Time ◽  
Information And Communication Technologies ◽  
New Technologies ◽  
Psychological Research ◽  
Ambulatory Assessment ◽  
Emotional States ◽  
Recent Developments ◽  
Potential Applications ◽  
Information And Communication ◽  
Physiological Sensors

Ambulatory assessment of emotional states as well as psychophysiological, cognitive and behavioral reactions constitutes an approach, which is increasingly being used in psychological research. Due to new developments in the field of information and communication technologies and an improved application of mobile physiological sensors, various new systems have been introduced. Methods of experience sampling allow to assess dynamic changes of subjective evaluations in real time and new sensor technologies permit a measurement of physiological responses. In addition, new technologies facilitate the interactive assessment of subjective, physiological, and behavioral data in real-time. Here, we describe these recent developments from the perspective of engineering science and discuss potential applications in the field of neuropsychology.

Into the Future: Language, Culture, and New Technologies

2000 ◽  
Vol 45 (4) ◽  
pp. 437-439
Author(s):  
Michele Knobel
Keyword(s):  
New Technologies ◽  
The Future
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