Dataglove Measurement of Joint Angles in Sign Language Handshapes

In sign language research, we understand little about articulatory factors involved in shaping phonemic boundaries or the amount (and articulatory nature) of acceptable phonetic variation between handshapes. To date, there exists no comprehensive analysis of handshape based on the quantitative measurement of joint angles during sign production. The purpose of our work is to develop a methodology for collecting and visualizing quantitative handshape data in an attempt to better understand how handshapes are produced at a phonetic level. In this pursuit, we seek to quantify the flexion and abduction angles of the finger joints using a commercial data glove (CyberGlove; Immersion Inc.). We present calibration procedures used to convert raw glove signals into joint angles. We then implement those procedures and evaluate their ability to accurately predict joint angle. Finally, we provide examples of how our recording techniques might inform current research questions

Brief Report: Visuo-spatial Guidance of Movement during Gesture Imitation and Mirror Drawing in Children with Autism Spectrum Disorders

Thirteen autistic and 14 typically developing children (controls) imitated hand/arm gestures and performed mirror drawing; both tasks assessed ability to reorganize the relationship between spatial goals and the motor commands needed to acquire them. During imitation, children with autism were less accurate than controls in replicating hand shape, hand orientation, and number of constituent limb movements. During shape tracing, children with autism performed accurately with direct visual feedback, but when viewing their hand in a mirror, some children with autism generated fewer errors than controls whereas others performed much worse. Large mirror drawing errors correlated with hand orientation and hand shape errors in imitation, suggesting that visuospatial information processing deficits may contribute importantly to functional motor coordination deficits in autism

do non state armed groups influence each other in attack timing and frequency generating analyzing and comparing empirical data and simulation

Non-State Armed Groups (NSAGs) operate in complex environments, commonly existing as one of the many organizations engaged in one-sided violent attacks against the state and/or the civilian population. When trying to explain the execution and timing of these attacks, most theories look at NSAGs' internal organizational features or how these groups interact with the state or civilian population. In this study, we take a different approach: we use a self-exciting temporal model to ask if the behavior of one NSAG affects the behavior of other groups operating in the same country and if the actions of groups with actual ties (i.e., groups with some recognized relationship) have a larger effect than those with environmental ties (i.e., groups simply operating in the same country). We focus on three cases where multiple NSAGs operated at the same time: Afghanistan, Iraq, and Colombia, from 2001 to 2005. We find mixed results for the notion that the actions of one NSAG influence the actions of others operating in the same conflict. In Iraq and Afghanistan, we find evidence that NSAG actions do influence the timing of attacks by other NSAGs; however, there is no discernible link between NSAG actions and the timing of attacks in Colombia. Nevertheless, we do consistently find that there is no significant difference between the effect that actual or environmental ties could have in these three cases

Non-State Authoritarianism and Diaspora Politics

Diaspora politics has been celebrated as a form of transnationalism that can potentially challenge authoritarian regimes. Arguably, opposition groups and political activists can mobilize beyond the territorial limits of the state, thus bypassing some of the constraints to political organization found in authoritarian states. The literature on transnational and extraterritorial repression complicates this model, for it shows that states can use strategies of ‘long‐distance authoritarianism’ to monitor, intimidate and harass diasporic populations abroad. Yet, non‐state actors in the diaspora also sometimes use such repressive strategies to mobilize internally, gain hegemony within the diaspora, and marginalize or eliminate internal rivals. This raises the question of whether such activities can be understood as non‐state forms of authoritarianism. Cases of diasporic politics pertaining to Turkey and Sri Lanka are briefly explored with a view to examining how state and non‐state forms of transnational repression can, under some conditions, result in the dynamics of competitive authoritarianism within a diaspora. In such cases, ‘ordinary’ members of the diaspora may become caught between multiple forms of transnational repression in addition to potentially experiencing marginalization and securitization in their new home

Winter Counts as Possible Precursors to Writing

Native Americans of the Great Plains did not have a formal system of writing. These groups did, however, have various types of graphical representation. One such example is the Siouan winter counts, pictures recorded once each winter on buffalo hide (or later on cloth) which served as mnemonic devices for a partial oral history and calendar of the group to which it belonged. Scholars often study the subject matter of these counts in order to gain historic or cultural information about Native groups. Despite the facts that only one important or unusual event is depicted each year, and that the accompanying verbal interpretations can be fraught with complications, these records, along with the phrases memorized and passed down with them, have proven useful in this pursuit However, the purpose of this paper is not to explore the historic significance of these counts, but rather to examine their pictures as symbols of those events. It is this researcher\u27s contention that the pictures used in many of the Siouan winter counts share important characteristics with the precursors of established writing systems, and therefore, could have been precursors to writing

UMA REVISÃO DA LITERATURA SOBRE O GOLPE DE ESTADO

Não é um assunto que diz respeito a este país e que até então não nos debruçamos sobre, mas que consideramos digno de nossa atenção: ou seja, os pontos de vista absolutamente míopes e ignorantes sobre a mudança nos destinos públicos da França desde o segundo dia de Dezembro, feita por quase todos os autores que escreveram sobre o caráter e as consequências do golpe de estado. Uma breve revisão das publicações que apareceram em diferentes setores nesta temática irá processar a verdade desta afirmação, e mais importante, irá evidenciar como essas publicações pretendem ser as expressões e os sentimentos dos partidos e das classes pelos quais seus autores pertencem respectivamente