Facial expression recognition in the wild,by fusion of deep learnt and hand-crafted features

In spite of the recent advancements in the field of deep learning based techniques for facial expression recognition, the efficiency of the state-of-the-art recognition methods in the wild scenarios, remains a challenge. The main reason behind the less efforts made for handling wild scenarios is two-folds: very less and varying levels of cues available to identify the distinguishable patterns of features (spatial and temporal) and non-availability of a big dataset to train a deep learning model. Recently, a huge dataset called AffectNet is introduced in the literature providing enough base to apply a deep learning model to train. This paper proposes an efficient combination of hand crafted and deep learning features for facial expression recognition in the wild. We use facial landmark points as hand-crafted features and XceptionNet for the deep learned features. We experiment with XceptionNet and Densenet propose the use of XceptionNet as it performs better compared to DenseNet, when applied on wild scenarios. The proposed fusion of the hand-crafted and XceptionNet features outperforms the state-of-the-art methods for facial expression recognition in the wild.     

Simulated Visual Field Loss Does Not Alter Turning Coordination in Healthy Young Adults

Turning, while walking, is an important component of adaptive locomotion. Current hypotheses regarding the motor control of body segment coordination during turning suggest heavy influence of visual information. The authors aimed to examine whether visual field impairment (central loss or peripheral loss) affects body segment coordination during walking turns in healthy young adults. No significant differences in the onset time of segments or intersegment coordination were observed because of visual field occlusion. These results suggest that healthy young adults can use visual information obtained from central and peripheral visual fields interchangeably, pointing to flexibility of visuomotor control in healthy young adults. Further study in populations with chronic visual impairment and those with turning difficulties are warranted.     

Slower Reorientation of Trunk for Reactive Turning while Walking in Hemiparesis Stroke Patients

We examined the behavioral characteristics of reactive turning in hemiplegic stroke patients when they were informed of the turning direction just before turning was required at an unpredictable time. Eleven stroke patients and 20 healthy elderly control people were asked to initiate a turn as soon as a visual cue to inform them of the turning direction was activated unpredictably using a foot switch. Both the segmental reorientation and stepping type when turning 90° while walking were measured. The results indicated preserved segmental reorientation of the head and pelvis in stroke patients. Stroke patients showed delays in pelvic turning but not in head turning. Their delayed pelvic movement might be due to motor dysfunction and the time taken to ensure stability when deciding when to turn.     

Sketching the Contours of the Scholarship of Teaching and Learning in Theology and Religion

This article argues that there is an identifiable scholarship of teaching and learning in theology and religion that, though varied in its entry points and forms, exhibits standards of excellence recognizable in other forms of scholarship. Engaging in this scholarship enhances a professor's possession of practice and often reveals insights into student learning and the contours of a field that can advance both educational and disciplinary projects. Through conversation with a form of the scholarship of teaching and learning that emerged most clearly in work associated with the Carnegie Foundation for the Advancement of Teaching, we describe starting points and generative assumptions that have been employed in the discourse of the scholarship of teaching and learning in theology and religion as they have emerged in submissions to Teaching Theology and Religion over the past decade and a half and point to its benefits. See responses to this essay by Charles R. Foster , Stephen Brookfield , and Pat Hutchings published in this issue of the journal. Responses by Reid B. Locklin, Joanne Maguire Robinson, and Nadine S. Pence appear in next issue issue, 16:3 (2013).     

Real-time detection of orientation during negative behavioral contrast with key pecking and a turning response

We developed a video system for real-time detection of a pigeon's orientation and for reinforcement of a “turning response.” Using this system, negative behavioral contrast was found across key-peck and turning responses. In addition, turning away from the pecking key was detected by the system just after presentation of the negative discriminative stimulus on the key. The results suggest that avoidance of the discriminative stimulus in the constant component, which has been regarded as a causal factor for negative contrast (additivity theory), is not the primary factor for negative behavioral contrast of pigeons' key pecking, but may account for negative local contrast.     

Transforming despair to hope in the treatment of extreme trauma: a view from the supervisor’s chair

The author considers how, when working with severely traumatised patients, times of despair can be transformed into moments of hope within the therapeutic process. She considers these moments from the perspective of ‘the supervisor’s chair’ and what emerges within the supervisory relationship when difficult and distressing sessions are openly and honestly bought to supervision. Drawing on Thomas Ogden’s ideas about ‘dreaming up the patient’ in supervision, and Michael Parsons’ thoughts about the supervisory relationship, she gives two examples of this process in action, the first about the transformation of despair to hope in the consulting room, and the second about the transformation of despair to hope in the professional network. She argues that these transformational moments of hope correspond to what Daniel Stern and his colleagues have described as ‘moments-of-meeting’ and are indicative of a potential turning point in the therapy. These fleeting moments need to be attended to and nurtured so that their potential for change and emotional growth and recovery can be harnessed.     

The combined effects of risk and time on choice: Does uncertainty eliminate the immediacy effect? Does delay eliminate the certainty effect?

Researchers have noted parallels between decisions under uncertainty and over time. Three experiments evaluated the theory that uncertainty and time affect choice via a common underlying dimension, such that delaying an outcome is equivalent to making it uncertain. To test this account we asked whether adding uncertainty to outcomes would eliminate the immediacy effect bias. We also asked whether adding time delay to outcomes would eliminate the certainty effect bias. The answer to both questions was yes, provided the prospects were presented singly rather than jointly. In single evaluation uncertainly eliminated the immediacy effect and delay eliminated one form of the certainty effect, while in joint evaluation, these effects did not occur. These findings suggest that at least in some contexts decision makers may equate risk and delay. Other explanations are possible, however, demonstrating that the interaction between risk and delay is complex and not easily understood.     

应用复杂科学理论对穴位进行实验研究和定量计算

近年来,一些研究者根据复杂性科学理论研究的最新成果,对穴位的复杂性进行了实验研究和分析计算.就有关复杂科学对穴位的研究进行了概述和讨论,并认为研究穴位的本质可采用复杂性科学方法.     

I Was Pleased a Moment Ago: How Pleasure Varies with Background and Foreground Reference Points

The pleasure of an outcome is often evaluated relative to salient reference points. In the background, increasing sequences of positive outcomes are more enjoyable than decreasing sequences. In the foreground, outcomes that could have been worse are often more enjoyable than those that could have been better. How does pleasure vary when both background and foreground reference points are salient? Using a repeated gambling task in which participants make a choice, learn the outcome, watch their cumulative earnings change, and rate the pleasure of the outcome, we explore this question. Pleasure depends on background and foreground reference points, but the immediate events tend to dominate. The relatively narrow focus on the most recent reference points leads to myopic pleasure. We offer a modified version of decision affect theory to account for the results and explore the implications for consumer satisfaction.     

A simple general method for oblique rotation

A simple and very general algorithm for oblique rotation is identified. While motivated by the rotation problem in factor analysis, it may be used to minimize almost any function of a not necessarily square matrix whose columns are restricted to have unit length. The algorithm has two steps. The first is to compute the gradient of the rotation criterion and the second is to project this onto a manifold of matrices with unit length columns. For this reason it is called a gradient projection algorithm. Because the projection step is very simple, implementation of the algorithm involves little more than computing the gradient of the rotation criterion which for many applications is very simple. It is proven that the algorithm is strictly monotone, that is as long as it is not already at a stationary point, each step will decrease the value of the criterion. Examples from a variety of areas are used to demonstrate the algorithm, including oblimin rotation, target rotation, simplimax rotation, and rotation to similarity and simplicity simultaneously. While it may be, the algorithm is not intended for use as a standard algorithm for well established problems, but rather as a tool for investigating new methods where its generality and simplicity may save an investigator substantial effort.The author would like to thank the review team for their insights and recommendations.