Academic literature on the topic 'Covert-Overt Complexity'

Selective attention is an important cognitive resource to account for when designing effective human-machine interaction and cognitive computing systems. Much of our knowledge about attention processing stems from search tasks that are usually framed around Treisman's feature integration theory and Wolfe's Guided Search. However, search performance in these tasks has mainly been investigated using an overt attention paradigm. Covert attention on the other hand has hardly been investigated in this context. To gain a more thorough understanding of human attentional processing and especially covert search performance, the authors have experimentally investigated the relationship between overt and covert visual search for targets under a variety of target/distractor combinations. The overt search results presented in this work agree well with the Guided Search studies by Wolfe et al. The authors show that the response times are considerably more influenced by the target/distractor combination than by the attentional search paradigm deployed. While response times are similar between the overt and covert search conditions, they found that error rates are considerably higher in covert search. They further show that response times between participants are stronger correlated as the search task complexity increases. The authors discuss their findings and put them into the context of earlier research on visual search.

Unhoused mothers not only contend with housing precarity and economic hardship but also intersecting classist, racist, and sexist stereotypes that position them as unfit mothers. Classed, raced, and gendered conceptualizations of “good” and “bad” motherhood are reified in US shelter regulations (e.g. strict rules governing parent and child behavior, curfews, mandatory participation in parenting classes) that seek to “reform” homeless mothers. To gain a better understanding of perceptions of and responses to shelter regulations, we interviewed 28 formerly unhoused US mothers about their experiences in family shelters. Participants overwhelmingly rejected “bad mother” stereotypes that equated lack of material resources with inadequate parenting and engaged in a range of overt (e.g. strategic recounting of life histories) and covert (e.g. subverting paternalistic rules) strategies to reclaim “good motherhood” and negotiate daily shelter life. Instrumental, discursive, covert, and overt critical resistance strategies were used to maintain parental authority, preserve one’s self-image as a “good” mother and obtain needed resources from shelter staff. Our findings highlight the complexity of critical resistance to class, race, and gender oppression and call for greater interrogation of how seemingly well-intentioned shelter rules and policies reinforce status hierarchies.

Bosnian/Croatian/Serbian (BCS) has a productive ‘involuntary state construction (ISC) with a modal interpretation. There is an ongoing debate concerning the syntactic complexity of this construction. According to one account – the “mono-clausal analysis”, ISCs have only one (overt) lexical verb, and the modal interpretation stems from the imperfective operator (Rivero and Milojević-Sheppard 2003,Rivero 2009, Tsedryk 2016). There is also a “bi-clausal account” which argues in favor of a covert matrix verb of involuntary disposition feel-like, which takes a clausal ModP complement, giving the modal interpretation (Marušič & Žaucer 2005 [henceforth M&Ž]). In this paper, I provide additional evidence in favor of the bi-clausal approach and in so doing, account for a previously unresolved aspectual restriction on the construction, namely that it is ungrammatical with a perfective lexical verb. The main claim is that the unavailability of perfective in the ISC is due to selectional properties of covert feel-like, which results in the violation of requirements on perfective.

The paper investigates whether the notion of impoliteness worked out for synchronic pragmatics is also applicable in diachronic pragmatics. An analysis of two Early Modern English court trial records demonstrates that the answer is positive provided some new dimensions are added. My model of impoliteness cuts across the following axes: structural, semantic, and pragmatic. Structural impoliteness ranges from words and phrases to portions of texts, thus the syntactic dimension cuts across the complexity dimension. The semantic/pragmatic dimension includes numerous non-literal meanings of impoliteness. An utterance can be judged as impolite on the basis of its surface representations (“overt impoliteness”), or the impoliteness of an expression has to be inferred and takes the form of an implicature (“covert impoliteness”). Thus, the final interpretation would depend both on the speaker’s intention when producing an utterance, its (perlocutionary) effect(s) on the addressee, and the overall context. Finally, all these variables cut across the socio-historical dimension.

Purpose – Research on conflict mediation presents a scattered, piecemeal understanding of what determines mediators’ strategies and tactics and ultimately what constitutes successful mediation. This paper presents research on developing a unifying framework – the situated model of mediation – that identifies and integrates the most basic dimensions of mediation situations. These dimensions combine to determine differences in mediator’s strategies that in turn influence mediation processes and outcomes. Design/methodology/approach – The approach used by this paper was twofold. First, the existing empirical literature was reviewed on factors that influence mediator’s behaviors. Based on the findings of this review, a survey study was conducted with experienced mediators to determine the most fundamental dimensions of mediation situations affecting mediators’ behaviors and mediation processes and outcomes. The data were analyzed through exploratory factor analysis and regression analysis. Findings – The results of the study show that four of the most fundamental dimensions of mediation situations include: low vs high intensity of the conflict, cooperative vs competitive relationship between the parties, tight vs flexible context and overt vs covert processes and issues. Each of these factors was found to independently predict differences in mediators’ behaviors and perceptions of processes and outcomes. These dimensions are then combined to constitute the basic dimensions of the situated model of mediation. Originality/value – The situated model of mediation is both heuristic and generative, and it shows how a minimal number of factors are sufficient to capture the complexity of conflict mediation in a wide range of contexts.

The aim of the article is to present the complexity of social mechanisms related to the systemic energy transformation from the perspective of the classical social exchange theory. Considering the direction of actions taken to reduce carbon dioxide emissions into the atmosphere as obvious, the author of the article analyses the issue through the prism of social and economic dilemmas of the process, focusing on the mechanisms of energy transition in relation to Peter Blau’s exchange theory. The dilemmas of the systemic energy transition are presented in relation to the diverse games of interest that mark the social playing field around the analysed issue. The article outlines the social playing field of energy transition using the example of an economically strong country seeking to strengthen its position and a developing country interested in gaining energy independence. The analysis of the systemic conditions and the political activities carried out made it possible to define possible strategies of action for both countries with reference to the constitutive conditions of power defined by Peter Blau. Contrary to programme declarations of a “just transition”, the analysis made it possible to define the privileged position of economically powerful players and to point to the mechanisms blocking the implementation of the strategy of a developing country. Reference to the classical exchange theory, on the other hand, made it possible to identify the mechanisms indicating the presence in the energy transformation project of both overt and covert projects related to the pursuit of advantage in influencing the shape of the global energy economy.

Abstract Monozygotic twin pairs with concordant ALL have provided unique insights into the molecular pathogenesis and natural history of childhood leukaemia. Data from twin pair studies and neonatal blood spot screening indicate that ETV6-RUNX1 usually arises as an early or initiating pre-natal event. Its consequence appears to be the generation of a clinically silent or covert but persistent pre-leukaemic clone. Conversion to overt, clinical ALL then requires the acquisition of one or more additional genetic lesions that functionally complement ETV6-RUNX1, often including deletions of the non-rearranged ETV6 allele. Recent genome wide single nucleotide polymorphism (SNP) array based studies have revealed considerably more genetic complexity than previously suspected, with ETV6-RUNX1 cases having an average of 6 (range 1–21) genomic losses or gains (Mullighan et al., Nature2007, 446: 758). It is however unclear from these descriptive screens or audits when these multiple changes arise in relation to the presumed initiating gene fusion and what functional contribution they make. We have used a series of identical twin pairs with ETV6-RUNX1 positive B precursor ALL to test the proposition that, as we reported previously for ETV6 deletion (Maia et al., Blood2001, 98: 478), all presumed functional or ‘driver’ genomic changes are post-natal in origin and therefore secondary to ETV6-RUNX1 fusion. If this were to be correct then we anticipated that genomic deletions and gains should be different or distinct within each twin pair. We used 250K Sty and 250K Nsp Affymetrix SNP mapping arrays on 5 pairs of identical twins concordant for ETV6-RUNX1 gene fusion positive ALL. We identified copy number variation using the “in-house” Genome Orientated Laboratory File v2.2.9 software package. The SNP array was performed using leukaemic DNA compared to matched remission DNA for 4 out of 5 cases. The fifth case was compared to a pool of remission DNA. The total number of genetic aberrations found was 51 (excluding T cell receptor and immunoglobulin rearrangements): 36 of these lesions were deletions (mean = 7.2) and 15 amplifications. The commonest aberration, found in 8 out of the 10 children, was a deletion on 12p13.2 involving the ETV6 gene. This was discordant in all cases, consistent with our previous reports using microsatellite markers. Other aberrations included deletions of PAX5, CDKN1B, CDKN2A and CD200/BTLA. The status of these, and other, presumed ‘drivers’ of leukaemogenesis were always different when diagnostic DNA of twins, within a pair, were compared i.e. either the genetic change was absent in one but present in the other, or the alteration was present in both but had distinct genomic boundaries. However in 2 of 5 twin pairs concordant, identical lesions were detected. These were idiosyncratic or very rare genomic changes in ALL and were either in gene sparse regions or involved loci with no known or likely contribution to B cell regulation or leukaemogenesis (e.g. CRYGD). We consider the most likely explanation for these shared genetic events in twin cases is that they arise simultaneously with (or immediately prior to) ETV6-RUNX1 fusion, and in the same incipient pre-ALL stem cell, as collateral damage or ‘passenger’ mutations. These data indicate that the common and presumed ‘driver’ genetic changes that accompany ETV6-RUNX1 in ALL are all secondary to gene fusion and most probably post-natal in origin. It remains to be established whether they contribute at all to the sustained pre-leukaemic state and whether they arise independently of each other and sequentially or as a timed suite or bolus perhaps proximate to diagnosis.

With intensified threats to global security from international terrorism, universities have become a focus for security concerns and marked as locus of special interest for the monitoring of extremism and counter-terrorism efforts by intelligence agencies worldwide.Drawing on initiatives in the United Kingdom and United States, I re-frame three – covert, overt and covert–overt – intersections of education, security and intelligence studies as a theoretical milieu by which to understand such counter-terrorism efforts.Against the backdrop of new legislative guidance for universities in an era of global terrorism and counter-terrorism efforts by security and intelligence agencies and their Governments, and through a review of Open-Source security/intelligence concerning universities in the United Kingdom and the United States, I show how this interstitial (covert, overt and covert– overt) complexity can be further understood by the overarching relationship between securitisation theory and university securitisation.An emergent securitised concept of university life is important because de facto it will potentially effect radical change upon the nature and purposes of the university itself.A current-day situation replete with anxiety and uncertainty, the article frames not only a sharply contested and still unfolding political agenda for universities but a challenge to the very nature and purposes of the university in the face of a potentially existential threat. Terrorism and counterterrorism, as manifest today, may well thus be altering the aims and purposes of the university in ways we as yet do not fully know or understand. This article advances that knowledge and understanding through a theoretical conceptualisation: the counter-terrorist campus.

Abstract This study investigates the second language (L2) acquisition of a constraint on definiteness in Japanese floating numeral quantifiers (NQs) by native English and Korean speakers. The constraint arises because of the specific structural relation between a floating NQ and its associated noun, resulting in an obligatorily indefinite interpretation. The indirect – or, covert – encoding of definiteness in this structure allows investigation of predictions based on the cline of difficulty proposed by Cho and Slabakova (2014), whereby L2 acquisition of a covert property may be facilitated if the first language (L1) expresses the relevant feature overtly. English is such a language, having overt morphology to express definiteness, whereas Korean has floating NQs that are obligatorily, and covertly, indefinite, as in Japanese. Sensitivity to definiteness in Japanese floating NQs was measured using an acceptability judgement task. Although both L1-Korean and L1-English speakers of Japanese showed sensitivity to the constraint at group level, follow-up analyses suggested that the Korean group had more consistent knowledge. We argue that the complexity of the acquisition task – which was greater for the English-speakers than the Korean-speakers – played a bigger role in attainment than overt versus covert encoding of the relevant feature in the L1.

People suffer from different brain disorders, unable to speak though they can think. For them require, a system which easily wearable and converts their imagined or intended covert speech into overt speech. Each brainactivity generates an electrical and magnetic signal. The electrical signal due to the brain activity is called the EEG, andthemagneticmovementiscalledtheMEG.Bothsignalsaremappedonthescalp, butitisweakerthanthebraincortex,andtheeffectofvolumeconduction.Therefore, it is essential to map the scalp's exact location of imagined speech to reduce the required number of electrodes and complexity. In this explorer, self-made graphene- based electrode and Hall-effect principle-based optically pumped magnetic electrode Resultsareadequatetolocatetheareaonthescalpofimaginedspeechandincrease the system wearables and user comfortability than the preceding system

This thesis investigates the issues in the categorisation of a small group of six functional words (đã, sẽ, sắp, mới, rồi, chưa) in Vietnamese, which I call time-marking particles for simplicity. I clearly distinguish these particles from the existing Vietnamese tense-aspect-mood markers (đang, được, có, từng, định, phải). By identifying these time-marking particles, I elaborate on two major issues in the categorisation of the particles in the literature: the fact that time-marking particles have been consistently grouped with TAM markers, and the fact that the very theoretical foundation of TAM theories is not suitable for the analysis of these particles. I then argue that the particles are essentially discourse particles (DP) in recognition of strikingly similar behaviour of these particles and discourse particles, especially the fact that the particles are often omitted (i.e. covertly marked) in speech. To prove this similarity from an empirical perspective, I analyse the covert-overt nature of two of the particles (đã and sẽ) by asking 101 participants to re-narrate an original story priming for the natural and spontaneous elicitation of the two particles. The quantitative evidence from this study confirms that regional variation does not interfere with these covert-overt occurrences of the particles, whereas the qualitative evidence confirms the significant discourse function of the particles being markers of sequential transitions between different events. From these findings, I devise a new grammatical framework to reanalyse these particles as a subclass of discourse particles that signals the sequential transition between trans-sentential units.
Thesis (Ph.D.) -- University of Adelaide, School of Humanities, 2022