How Ego Depletion Affects Sexual Self-Regulation: Is It More Than Resource Depletion?

Rational thinking and decision making are impacted when in a state of sexual arousal. The inability to self-regulate arousal can be linked to numerous problems, like sexual risk taking, infidelity, and sexual coercion. Studies have shown that most men are able to exert voluntary control over their sexual excitation with various levels of success. Both situational and dispositional factors can influence self-regulation achievement. The goal of this research was to investigate how ego depletion, a state of low self-control capacity, interacts with personality traits—propensities for sexual excitation and inhibition—and cognitive absorption, to cause sexual self-regulation failure. The sexual responses of 36 heterosexual males were assessed using penile plethysmography. They were asked to control their sexual arousal in two conditions, with and without ego depletion. Results suggest that ego depletion has opposite effects based on the trait sexual inhibition, as individuals moderately inhibited showed an increase in performance while highly inhibited ones showed a decrease. These results challenge the limited resource model of self-regulation and point to the importance of considering how people adapt to acute and high challenging conditions.     

Using Eye Tracking to Identify Faking Attempts During Penile Plethysmography Assessment

Penile plethysmography (PPG) is considered the most rigorous method for sexual interest assessment. Nevertheless, it is subject to faking attempts by participants, which compromises the internal validity of the instrument. To date, various attempts have been made to limit voluntary control of sexual response during PPG assessments, without satisfactory results. This exploratory research examined eye-tracking technologies' ability to identify the presence of cognitive strategies responsible for erectile inhibition during PPG assessment. Eye movements and penile responses for 20 subjects were recorded while exploring animated human-like computer-generated stimuli in a virtual environment under three distinct viewing conditions: (a) the free visual exploration of a preferred sexual stimulus without erectile inhibition; (b) the viewing of a preferred sexual stimulus with erectile inhibition; and (c) the free visual exploration of a non-preferred sexual stimulus. Results suggest that attempts to control erectile responses generate specific eye-movement variations, characterized by a general deceleration of the exploration process and limited exploration of the erogenous zone. Findings indicate that recording eye movements can provide significant information on the presence of competing covert processes responsible for erectile inhibition. The use of eye-tracking technologies during PPG could therefore lead to improved internal validity of the plethysmographic procedure.     

Why are social sciences and humanities needed in the works of IPBES? A systematic review of the literature

Despite the increased attention, which has been given to the issue of involving knowledge and experts from the social sciences and humanities (SSH) into the products and works of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), little is known on what the expectations towards the involvement of SSH in IPBES actually are. The aim of this paper is to close this gap by identifying the range of possible SSH contributions to IPBES that are expected in the literature, and discuss the inherent challenges of and concrete ways to realize these contributions in the particular institutional setting of IPBES. We address these two points by: firstly, assessing the literature dealing with IPBES and building a typology describing the main ways in which contributions from SSH to IPBES have been conceived between 2006 and 2017. We discuss these expected contributions in light of broader debates on the role of SSH in nature conservation and analyse some of the blind spots and selectivities in the perception of how SSH could substantially contribute to the works of IPBES. Then, secondly, by looking at one particular example, economics and its use in the first thematic assessment on pollinators, pollination and food production, we will concretely illustrate how works in a given discipline could contribute in many different and unprecedented ways to the works of IPBES and help identify paths for enhancing the conservation of biodiversity. Finally, we propose a range of practical recommendations as to how to increase the contribution of SSH in the works of IPBES.     

梅洛-庞蒂的肉身概念的难点

本文侧重考察了后期梅洛-庞蒂关于肉身概念的思考.梅洛-庞蒂将肉身由一个本体概念发展为一个本体论概念,即世界之肉身.本文从胡塞尔及梅洛-庞蒂关于触摸的理论入手,揭示出身体的可逆性概念,从而超越传统的主客二分的形而上学认识模式.可逆性同时也意味着身体属于世界,是世界的一部分,这就揭示了一个更源始的存在.从肉身到世界,从世界到肉身,二者其实不过是同一个运动的两个方面.但是,这样一种扩展,是否具有合法性?实际上,这样一种扩展是以肉身与世界之间的连续性为前提的.于是,梅洛-庞蒂两次遗忘了现象学:一,将适用于肉身的扩展到世界;二,虽然他消解了主体与客体的对立,却又重新在肉身内部建立了新的区分和新的对立.     

Publisher Correction to: The Indicator of a Happy,Long and Sustainable Life

Social Indicators Research -     

Some tests for uniformity of circular distributions powerful against multimodal alternatives

The author introduces new statistics suited for testing uniformity of circular distributions and powerful against multimodal alternatives. One of them has a simple expression in terms of the geometric mean of the sample of chord lengths. The others belong to a family indexed by a continuous parameter. The asymptotic distributions under the null hypothesis are derived. We compare the power of the new tests against Stephens's alternatives with those of Ajne, Watson, and Hermans‐Rasson's tests. Some of the new tests are the most powerful when the alternative has three or four modes. A heuristic justification of this feature is given. An application to the analysis of archaeological data is provided. The Canadian Journal of Statistics 38:80–96; 2010 © 2010 Statistical Society of Canada     

A robust coefficient of determination for regression

To assess the quality of the fit in a multiple linear regression, the coefficient of determination or R² is a very simple tool, yet the most used by practitioners. Indeed, it is reported in most statistical analyzes, and although it is not recommended as a final model selection tool, it provides an indication of the suitability of the chosen explanatory variables in predicting the response. In the classical setting, it is well known that the least-squares fit and coefficient of determination can be arbitrary and/or misleading in the presence of a single outlier. In many applied settings, the assumption of normality of the errors and the absence of outliers are difficult to establish. In these cases, robust procedures for estimation and inference in linear regression are available and provide a suitable alternative.     

Burmese Indians in contemporary Burma: heritage,influence, and perceptions since 1988

This article seeks to explore the current role, significance and influence of Burmese Indian minorities in post-1988 Burma as well as the perceptions the Burmese indigenous society and elite have developed on them since the colonial era. British Burma (1826–1948) witnessed a massive immigration of Indian communities that disproportionately dominated Burma's colonial enterprise. A strong resentment thus arose among the Burman Buddhist majority, illustrated by the rise of a popular ‘indophobia’ phenomenon. Paroxysmal expressions of the colonial original trauma were observed through recurrent pre-independence anti-Indian riots as well as a specific and enduring linguistic patronizing classification of the ‘Kalas’ by the Burmese language. Nationalistic administrative laws, enacted by the Burmese post-independence parliamentarian and military governments, furthered the downgrading and discrimination of Burmese Indians who remain however a visible minority today, with a manifest economic weight and a strong socio-cultural presence throughout Burma. In this paper, it will, however, be argued that after years of ‘Burmanization’ processes, Burmese old-age ‘indophobic’ sentiments have turned towards more ‘islamophobic’ tendencies, now explicitly targeting the Muslim communities of Indian origin, but that it remains difficult to evaluate their impact on Burma's current policymaking.     

Trip packing in petrol stations replenishment

This paper considers a generalized version of the trip packing problem that we encountered as a sub-problem of the petrol stations replenishment problem. In this version we have to assign a number of trips to a fleet composed of a limited number of non-identical tank-trucks. Each trip has a specific duration, working time of vehicles is limited and the net revenue of each trip depends on the truck used. The paper provides a mathematical formulation of the problem and proposes some construction, improvement and neighbourhood search solution heuristics. A set of benchmark problem instances is created in a way that reflects real-life situations and used to analyse the performance of the proposed heuristics. A real-life case is also used to further assess the proposed heuristics.