scholarly journals Differences between Task, Exercise, and Drill in L2 Education: A Systems-thinking Perspective

2018 ◽  
Vol 9 (6) ◽  
pp. 9
Author(s):  
Somayyeh Sabah
Keyword(s):  
Complex System ◽  
Task Performance ◽  
Systems Thinking ◽  
Real World ◽  
Degrees Of Freedom ◽  
Language Teaching ◽  
Task Demands ◽  
The Other ◽  
Related Literature ◽  
The Real

The present study considered the definitions of and differences between the concepts of task, exercise, and drill in the related literature on L2 practices. The concept of task has been commonly differentiated from the exercise and drill with respect to certain criteria. Task is, in the main, meaning-based, goal-oriented, and purposeful with a nonlinguistic and communicative outcome. Based on Long (2016), task demands the L2 use in the real world. Also, as said by Swales (1990), tasks are more relatable to the genre than the other two language practices. Moreover, the task performance endows L2 learners with higher degrees of freedom than the accomplishment of the exercise and drilling, respectively. Furthermore, this study examined and supported a systems-thinking perspective on task-based language teaching (TBLT) (Finch, 2001). However, considering the task phase as a complex system seems to be still under debate and thus needs more research and analysis.

scholarly journals Chosen-Key Distinguishers on 12-Round Feistel-SP and 11-Round Collision Attacks on Its Hashing Modes

2016 ◽  
pp. 13-32
Author(s):  
Xiaoyang Dong ◽  
Xiaoyun Wang
Keyword(s):  
Time Use ◽  
Real World ◽  
Degrees Of Freedom ◽  
Block Cipher ◽  
The Other ◽  
Compression Function ◽  
The Real ◽  
Collision Attacks ◽  
First Time ◽  
Model Affect

Since Knudsen and Rijmen proposed the known-key attacks in ASIACRYPT 2007, the open-key model becomes more and more popular. As the other component of the open-key model, chosen-key model was applied to the full attacks on AES-256 by Biryukov et al. in CRYPTO 2009. In this paper, we explore how practically the chosen-key model affect the real-world cryptography and show that 11-round generic Feistel-SP block cipher is no longer safe in its hashing modes (MMO and MP mode) as there exist collision attacks. This work improves Sasaki and Yasuda’s collision attacks by 2 rounds with two interesting techniques. First, we for the first time use the available degrees of freedom in the key to reduce the complexity of the inbound phase, which extends the previous 5-round inbound differential to a 7-round one. This results in a 12-round chosen-key distinguisher of Feistel-SP block cipher. Second, inspired by the idea of Wang et al., we construct collisions using two blocks. The rebound attack is used in the second compression function. We carefully balance the freedom of the first block and the complexity of the rebound attack, and extend the chosen-key attack to a 11-round collision attack on its hashing modes (MMO and MP mode).

Place of Pragmatics in EFL Classroom

2021 ◽  
Vol 24 (1) ◽  
pp. 66-81
Author(s):  
Ali Akbar Khansir ◽  
Farhad Pakdel
Keyword(s):  
Real World ◽  
Language Teaching ◽  
Functional Approach ◽  
Language Teachers ◽  
The Other ◽  
The Real ◽  
Other Hand ◽  
Language Studies ◽  
Language Classroom ◽  
Real World Situation

This article’s main aim was to discuss the place of Pragmatics in EFL classrooms. Pragmatics is one of the branches of linguistics concerned with the study of meaning as communicated by a speaker and interpreted by a listener. Pragmatics has relatively recently become the focuses of attention in language studies. On the other hand, it is important to remember that pragmatics components have been used in language teaching contexts in recent years, syllabus design by language teachers worldwide. Many research works have been done by many language researchers in different aspects of pragmatics competence. Language teachers use pragmatics as a functional approach in the language classroom. However, pragmatics follows the general principles for men when they communicate with others. Pragmatics study sentences not in isolation but regarding contexts of situations, and it is defined as the interaction between a sequence of language and the real-world situation in which it is used.

scholarly journals GazeEMD: Detecting Visual Intention in Gaze-Based Human-Robot Interaction

Robotics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 68
Author(s):  
Lei Shi ◽  
Cosmin Copot ◽  
Steve Vanlanduit
Keyword(s):  
Cognitive Load ◽  
Real World ◽  
Robotic Manipulator ◽  
Similarity Score ◽  
Human Robot Interaction ◽  
Experimental Results ◽  
The Other ◽  
Robot Interaction ◽  
Run Length ◽  
The Real

In gaze-based Human-Robot Interaction (HRI), it is important to determine human visual intention for interacting with robots. One typical HRI interaction scenario is that a human selects an object by gaze and a robotic manipulator will pick up the object. In this work, we propose an approach, GazeEMD, that can be used to detect whether a human is looking at an object for HRI application. We use Earth Mover’s Distance (EMD) to measure the similarity between the hypothetical gazes at objects and the actual gazes. Then, the similarity score is used to determine if the human visual intention is on the object. We compare our approach with a fixation-based method and HitScan with a run length in the scenario of selecting daily objects by gaze. Our experimental results indicate that the GazeEMD approach has higher accuracy and is more robust to noises than the other approaches. Hence, the users can lessen cognitive load by using our approach in the real-world HRI scenario.

Responsibility and obligation in the ‘Responsibility to Protect’

2010 ◽  
Vol 36 (S1) ◽  
pp. 25-46 ◽  
Author(s):  
WILLIAM BAIN
Keyword(s):  
International Law ◽  
Real World ◽  
The Other ◽  
Responsibility To Protect ◽  
Men And Women ◽  
The Real

AbstractThis article takes up Louise Arbour's claim that the doctrine of the ‘Responsibility to Protect’ is grounded in existing obligations of international law, specifically those pertaining to the prevention and punishment of genocide. In doing so, it argues that the aspirations of the R2P project cannot be sustained by the idea of ‘responsibility’ alone. The article proceeds in arguing that the coherence of R2P depends on an unacknowledged and unarticulated theory of obligation that connects notions of culpability, blame, and accountability with the kind of preventive, punitive, and restorative action that Arbour and others advocate. Two theories of obligation are then offered, one natural the other conventional, which make this connection explicit. But the ensuing clarity comes at a cost: the naturalist account escapes the ‘real’ world to redeem the intrinsic dignity of all men and women, while the conventionalist account remains firmly tethered to the ‘real’ world in redeeming whatever dignity can be had by way of an agreement. The article concludes by arguing that the advocate of the responsibility to protect can have one or the other, but not both.

scholarly journals Ethics of identity in the time of big data

First Monday ◽  
2019 ◽  
Author(s):  
James Brusseau
Keyword(s):  
Big Data ◽  
Personal Identity ◽  
Real World ◽  
Natural Law ◽  
The Other ◽  
Ethical Question ◽  
Human Relationships ◽  
The Real ◽  
Ethical Frameworks ◽  
Big Data Technology

Compartmentalizing our distinct personal identities is increasingly difficult in big data reality. Pictures of the person we were on past vacations resurface in employers’ Google searches; LinkedIn which exhibits our income level is increasingly used as a dating web site. Whether on vacation, at work, or seeking romance, our digital selves stream together. One result is that a perennial ethical question about personal identity has spilled out of philosophy departments and into the real world. Ought we possess one, unified identity that coherently integrates the various aspects of our lives, or, incarnate deeply distinct selves suited to different occasions and contexts? At bottom, are we one, or many? The question is not only palpable today, but also urgent because if a decision is not made by us, the forces of big data and surveillance capitalism will make it for us by compelling unity. Speaking in favor of the big data tendency, Facebook’s Mark Zuckerberg promotes the ethics of an integrated identity, a single version of selfhood maintained across diverse contexts and human relationships. This essay goes in the other direction by sketching two ethical frameworks arranged to defend our compartmentalized identities, which amounts to promoting the dis-integration of our selves. One framework connects with natural law, the other with language, and both aim to create a sense of selfhood that breaks away from its own past, and from the unifying powers of big data technology.

scholarly journals Real-world size of objects serves as an axis of object space

2021 ◽  
Author(s):  
Taicheng Huang ◽  
Yiying Song ◽  
Jia Liu
Keyword(s):  
Real World ◽  
Temporal Cortex ◽  
Principal Component ◽  
Physical World ◽  
Task Demands ◽  
Deep Convolutional Neural Networks ◽  
Object Space ◽  
The Real ◽  
Ventral Temporal Cortex ◽  
Dimensional Object

Our mind can represent various objects from the physical world metaphorically into an abstract and complex high-dimensional object space, with a finite number of orthogonal axes encoding critical object features. Previous fMRI studies have shown that the middle fusiform sulcus in the ventral temporal cortex separates the real-world small-size map from the large-size map. Here we asked whether the feature of objects' real-world size constructed an axis of object space with deep convolutional neural networks (DCNNs) based on three criteria of sensitivity, independence and necessity that are impractical to be examined altogether with traditional approaches. A principal component analysis on features extracted by the DCNNs showed that objects' real-world size was encoded by an independent component, and the removal of this component significantly impaired DCNN's performance in recognizing objects. By manipulating stimuli, we found that the shape and texture of objects, rather than retina size, co-occurrence and task demands, accounted for the representation of the real-world size in the DCNNs. A follow-up fMRI experiment on humans further demonstrated that the shape, but not the texture, was used to infer the real-world size of objects in humans. In short, with both computational modeling and empirical human experiments, our study provided the first evidence supporting the feature of objects' real-world size as an axis of object space, and devised a novel paradigm for future exploring the structure of object space.

scholarly journals Exploring sensorimotor performance and user experience within a virtual reality golf putting simulator

2020 ◽  
Author(s):  
David J. Harris ◽  
Gavin Buckingham ◽  
Mark R. Wilson ◽  
Jack Brookes ◽  
Faisal Mushtaq ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Construct Validity ◽  
Real World ◽  
High Performance ◽  
Task Demands ◽  
Self Report ◽  
The Real ◽  
Task Load ◽  
Golf Putting ◽  
Effective Transfer

Abstract In light of recent advances in technology, there has been growing interest in virtual reality (VR) simulations for training purposes in a range of high-performance environments, from sport to nuclear decommissioning. For a VR simulation to elicit effective transfer of training to the real-world, it must provide a sufficient level of validity, that is, it must be representative of the real-world skill. In order to develop the most effective simulations, assessments of validity should be carried out prior to implementing simulations in training. The aim of this work was to test elements of the physical fidelity, psychological fidelity and construct validity of a VR golf putting simulation. Self-report measures of task load and presence in the simulation were taken following real and simulated golf putting to assess psychological and physical fidelity. The performance of novice and expert golfers in the simulation was also compared as an initial test of construct validity. Participants reported a high degree of presence in the simulation, and there was little difference between real and virtual putting in terms of task demands. Experts performed significantly better in the simulation than novices (p = .001, d = 1.23), and there was a significant relationship between performance on the real and virtual tasks (r = .46, p = .004). The results indicated that the simulation exhibited an acceptable degree of construct validity and psychological fidelity. However, some differences between the real and virtual tasks emerged, suggesting further validation work is required.

A note on correctness and incorrectness: Mathematical systems and their relationships to the real world

1971 ◽  
Vol 18 (5) ◽  
pp. 320-321
Author(s):  
Charles Brumfiel
Keyword(s):  
Real World ◽  
Real Life ◽  
The Other ◽  
Real Problem ◽  
Vast Array ◽  
The Real ◽  
Life Problems ◽  
Mathematical Symbols ◽  
Real Objects ◽  
Mathematical Systems

In the November 1970 issue of the Arithmetic Teacher there appeared my article, “Mathematical Systems and Their Relationship to the Real World.” One point I made is that mathematics provides us with a vast array of symbols and concepts to use in solving real-life problems. When we use mathematics to solve a real problem, we make certa in mental associations between mathematical symbols and real objects. I suggested that arguments sometimes arise because two persons may make different associations, mathematical symbols to real objects, and each thinks his associations are correct while the other person's are incorrect.

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