Explicit Theory Research Articles

On asymptotic dark energy in string theory

We examine bounds on accelerated expansion in asymptotic regions of the moduli space in string theory compactifications to four spacetime dimensions. While there are conjectures that forbid or constrain accelerated expansion in such asymptotic regions, potential counter examples have been discussed recently in the literature. We check whether such counter examples can arise in explicit string theory constructions, focusing in particular on non-geometric compactifications of type IIB string theory that have no Kähler moduli. We find no violation of the Strong Asymptotic dS Conjecture and thus provide support for the absence of accelerated expansion in asymptotic regions of a barely explored corner of the string landscape. Moreover, working in a simplified setting, we point out a new mechanism for potentially connecting the Sharpened Distance Conjecture and the Strong Asymptotic dS Conjecture. If this argument could be generalized, it would mean that the Sharpened Distance Conjecture is implied by the Strong Asymptotic dS Conjecture, and that their exponential factors are naturally related by a factor of 2.

Higher education English language professors' conceptualisation of peace: A call for integrating critical peace practices into teaching and teacher education programmes

This study explored English language professors' conceptualisation of peace in light of explicit theories of peace. The participants, 20 English language professors in the context of Iran, shared their ideas through interviews and personal documents. The data were hermeneutically analysed and two dominant themes were identified: the cultivation of critical being and transforming unequal power through de-centering dominant discourses, listening to muted voices, and expanding participatory processes. The participants called for critical pedagogy and a shift towards a multilingual-multicultural paradigm revolving around intercultural openness. The findings re-claimed criticality in peace practices in teaching and teacher education programmes.

Experimental research in knowledge management

AbstractAt the heart of any healthy field are explicit theories and concerted efforts to test these theories. In the traditional “textbook” conceptualization of science, the main avenue for developing and testing theory is experimental research, a tool that enables investigators to filter out the noise in order to draw logically valid inferences and conclusions. The objective of this paper is to begin a probe into the use of experimental research in knowledge management (KM). After sketching an image of the nature of experimental research and its advantages, the paper details the results of an analysis of experimental research in the KM literature. The top 20 KM journals were searched in Scopus and Web of Science for any mention of the term “experiment.” In total, 43 papers were identified based on their use of experimental methods and human participants. These studies were coded for purpose, research questions, hypotheses, operationalization of variables, sample parameters, and statistical analysis methods. There appeared to be little evidence for a dedicated and sustained use of experimental research methods. Virtually all studies relied heavily on self‐report questionnaires as the main data collection tool rather than direct behavioral measures. Potential implications are that KM journals may want to elicit and encourage more experimental research, and researchers interested in using experimental methods may want to forge multidisciplinary partnerships, for instance, with experimental psychologists. The implication for KM methodological pedagogy is to further promote and integrate experimental methods.

Algebraic de Rham theory for the relative completion of 𝑆𝐿₂(ℤ)

We develop an explicit algebraic de Rham theory for the relative completion of S L 2 ( Z ) {\mathrm {SL}}_2(\mathbb {Z}) . This allows the construction of iterated integrals involving modular forms of the second kind, generalizing iterated integrals of holomorphic modular forms that were previously studied by Brown and Manin. These newly constructed iterated integrals provide all ‘multiple modular values’ defined by Brown.

How capacity building of district health managers has been designed, delivered and evaluated in sub-Saharan Africa: a scoping review and best fit framework analysis

ObjectivesWe aimed to understand how capacity building programmes (CBPs) of district health managers (DHMs) have been designed, delivered and evaluated in sub-Saharan Africa. We focused on identifying the underlying assumptions...

Explicit Photogain Theory for Nanowire Photoconductors Validated by TCAD Software Simulations

Low-dimensional photoconductors often have extraordinarily high photogain. However, the classical photogain theory was derived on two misplaced assumptions. We recently established a new explicit photogain theory for photoresponses of silicon nanowires. In this work, we employed the commercial TCAD software Silvaco to validate our newly established theory by tuning the density of surface states and fixed charges in a wide range for channel-continuous and channel-pinched-off nanowires.

Accelerating cosmology from Λ < 0 gravitational effective field theory

A large class of Λ < 0 cosmologies have big-bang/big crunch spacetimes with time-symmetric backgrounds and asymptotically AdS Euclidean continuations suggesting a possible holographic realization. We argue that these models generically have time-dependent scalar fields, and these can lead to realistic cosmologies at the level of the homogeneous background geometry, with an accelerating phase prior to the turnaround and crunch. We first demonstrate via explicit effective field theory examples that models with an asymptotically AdS Euclidean continuation can also exhibit a period of accelerated expansion without fine tuning. We then show that certain significantly more tuned examples can give predictions arbitrarily close to a ΛCDM model. Finally, we demonstrate via an explicit construction that the potentials of interest can arise from a superpotential, thus suggesting that these solutions may be compatible with an underlying supersymmetric theory.

Interpreting the results of explicit and applied theory of mind collectively in autistic children: A solution from Rasch analysis.

Theory of mind is an ability to infer others' mental states, which is a foundation for generating appropriate social responses. Theory of mind can be conceptually divided into two related but distinguishable constructs: explicit theory of mind (conceptual knowledge/information about others' mental states) and applied theory of mind (the ability to use theory of mind skills in real-life contexts). Although these two theory of mind scores can be described by the percentages of children in the early, basic, and advanced developmental stages, the resulting information may not be sufficient to determine the corresponding relationships between these two theory of mind constructs or identify children with mismatched theory of mind abilities (e.g. children who have difficulty in effectively applying their theory of mind knowledge in real-life contexts). To resolve these limitations, methods for simultaneously interpreting the relationships between the two theory of mind scores are proposed. Based on the findings, each applied theory of mind score can reflect multiple scores of explicit theory of mind. In particular, the results do not take measurement error into consideration, which would make them more ambiguous. Therefore, the scores of applied theory of mind should be interpreted carefully, given that children who have the same applied theory of mind score may actually have high or low explicit theory of mind. Regarding the method for joint interpretation, cutoff scores were selected to identify children who have mismatched theory of mind abilities (high explicit theory of mind with low applied theory of mind or low explicit theory of mind with high applied theory of mind) and determine the priority for interventions.

Theories for interventions to reduce physical and verbal abuse: A mixed methods review of the health and social care literature to inform future maternity care.

Despite global attention, physical and verbal abuse remains prevalent in maternity and newborn healthcare. We aimed to establish theoretical principles for interventions to reduce such abuse. We undertook a mixed methods systematic review of health and social care literature (MEDLINE, SocINDEX, Global Index Medicus, CINAHL, Cochrane Library, Sept 29th 2020 and March 22nd 2022: no date or language restrictions). Papers that included theory were analysed narratively. Those with suitable outcome measures were meta-analysed. We used convergence results synthesis to integrate findings. In September 2020, 193 papers were retained (17,628 hits). 154 provided theoretical explanations; 38 were controlled studies. The update generated 39 studies (2695 hits), plus five from reference lists (12 controlled studies). A wide range of explicit and implicit theories were proposed. Eleven non-maternity controlled studies could be meta-analysed, but only for physical restraint, showing little intervention effect. Most interventions were multi-component. Synthesis suggests that a combination of systems level and behavioural change models might be effective. The maternity intervention studies could all be mapped to this approach. Two particular adverse contexts emerged; social normalisation of violence across the socio-ecological system, especially for 'othered' groups; and the belief that mistreatment is necessary to minimise clinical harm. The ethos and therefore the expression of mistreatment at each level of the system is moderated by the individuals who enact the system, through what they feel they can control, what is socially normal, and what benefits them in that context. Interventions to reduce verbal and physical abuse in maternity care should be locally tailored, and informed by theories encompassing all socio-ecological levels, and the psychological and emotional responses of individuals working within them. Attention should be paid to social normalisation of violence against 'othered' groups, and to the belief that intrapartum maternal mistreatment can optimise safe outcomes.

On the Relevance of Niccolò Machiavelli's Understanding of Time for Contemporary Politics

Abstract Niccolò Machiavelli's political thoughts are based on a specific understanding of time. Whoever wants to make use of his conclusions must therefore be aware of his premises in order not to run the risk of misinterpreting them. Even if the Florentine does not develop an explicit theory of time, statements about the meaning of time can be found implicitly in his entire oeuvre. In three steps, this article will present the main features of Machiavelli's understanding of time, an explanation of the significance of time in contemporary politics, and an answer to the question ‘How to proceed with Machiavelli and his political thoughts?’ With regard to his understanding of time, Machiavelli's political thoughts will not be presented as a guide for the challenges of contemporary politics but as a distorted reflection of a distant mirror.

The analysis of frictional rolling contact behavior and key affecting factors on uneven wear in a switch panel

To analyze the wheel-rail frictional rolling contact solutions and uneven wear in a switch panel, the wheel-rail frictional rolling contact model based on explicit integral algorithm considering coupling effect of structural vibration and contact mechanics, arbitrary contact geometry and nonlinear material is established. Then the wheel-rail explicit dynamics theory, unrepeatable saturated design, wear prediction method and data statistical processing methods are integrated as a method to figure out the key affecting factors, recognizing the influence of key factors on wheel-rail contact behavior and uneven wear in switch panel, including the contact force, the instantaneous and drastic changes of size, stress and microslip in contact patch and the distribution and magnitude of wear. The results of numerical simulations can provide guidance for investigation of contact mechanism and understanding of rail maintenance in switch panel.

A Review of the Empirical Literature on Audit Market Concentration

Synopsis The research problem The extant audit market concentration (AMC) literature is quite scattered, which makes it challenging to comprehend the current state of knowledge and to highlight the areas that require further exploration. An improved understanding of AMC and its possible effects require a comprehensive review of the AMC literature, since no such review has yet been published. Therefore, our paper intends to: (a) synthesize the empirical work in the AMC literature; (b) determine the limitations in the ways AMC has been investigated; (c) identify avenues of inquiry that could guide future thinking on AMC; and (d) develop insights into how future AMC investigations can be further developed. Motivation The most noticeable developments in AMC occurred after the audit firm megamergers of the 1980s and 1990s and Andersen’s demise in 2002. This trend toward fewer and larger suppliers of auditing services has sparked intense debate about the costs and benefits of AMC. However, the literature provides mixed evidence on the determinants and consequences of AMC. Adopted methodology A structured literature review [Massaro, M., Dumay, J., &amp; Guthrie, J. (2016). On the shoulders of giants: Undertaking a structured literature review. Accounting, Auditing and Accountability Journal, 29(5), 767–801. https://doi.org/10.1108/AAAJ-01-2015-1939 ] was employed to review the extant AMC literature. Analyses We analyzed 108 empirical papers published in 39 peer-reviewed quality accounting and auditing journals in the English language over a 55-year period (1967 to mid-2021). Findings The analysis suggests a consistent rise in AMC levels, leading to a tight oligopoly and, in rare cases, to a duopoly, across countries and over time. Studies of audit pricing and audit quality comprise the predominant part of the literature, and these report mixed findings as to whether AMC facilitates monopolistic pricing and allows audit-quality-threatening behaviors. This could be attributed to several factors, including the focus on short-term effects of AMC; substantial variations in how concentration was measured; and misguided use of proxies for audit competition and audit quality. The review identifies four key limitations that circumscribe our understanding of AMC: (a) the lack of investigation into the actual dynamic rivalry among audit firms; (b) great reliance on the positivistic approach and quantitative methods, and the lack of use of explicit theories aside from economic theories; (c) a focus on the audit of publicly listed companies in the United States, the U.K., and Australia; and thus; (d) the absence of key organizational settings and central regions in the AMC debate. To counter these limitations, this review puts forward possible future research avenues that can help to advance our understanding of AMC to address emerging challenges in the field.

Rigorous theory-based intervention research is the bold action needed to address oral health disparities and inequities.

The Consensus Statement about behavioral and social sciences in oral health encourages future research to draw on testable theories that specify causal pathways that reflect the complex nature of oral health. In this commentary, we amplify the importance of explicit and well-specified theory in oral health intervention research, acknowledging that problematic use of theory has limited its utility in developing effective public health interventions. Also, we affirm the need to focus on determinants of oral health-and health inequities-most likely to drive meaningful change, and to understand the causal pathways that connect drivers of change from the individual to the global level. We view theory-based, causal mechanisms research as a powerful approach to building successful public health interventions, and suggest resources to inspire such research, including exemplary studies, methodologies, and collaborative initiatives that facilitate strong theory-based public health research.

Opus on conformal symmetry of the Nambu–Goto versus Polyakov strings

I investigate the Nambu–Goto and Polyakov strings, accounting for higher-derivative terms in the emergent action for the metric tensor which are classically negligible for smooth metrics but revive quantumly. Using the conformal field theory technique by KPZ-DDK, I compute in the one-loop approximation the conformal dimension and the central charge which differs in the two cases, telling the Nambu–Goto and Polyakov strings apart. I confirm the results by explicit quantum field theory computations of the propagator and the energy–momentum tensor at one loop, using the Pauli–Villars regularization.

The 𝒫(𝜑)₂ Model on de Sitter Space

In 1975 Figari, Høegh-Krohn and Nappi constructed theP(φ)2{\mathscr P}(\varphi )_2model on the de Sitter space. Here we complement their work with new results, which connect this model to various areas of mathematics. In particular, i.) we discuss the causal structure of de Sitter space and the induces representations of the Lorentz group. We show that the UIRs ofSO0(1,2)SO_0(1,2)for both the principal and the complementary series can be formulated on Hilbert spaces whose functions are supported on a Cauchy surface. We describe the free classical dynamical system in both its covariant and canonical form, and present the associated quantum one-particle KMS structures in the sense of Kay (1985). Furthermore, we discuss the localisation properties of one-particle wave functions and how these properties are inherited by the algebras of local observables.ii.) we describe the relations between the modular objects (in the sense of Tomita-Takesaki theory) associated to wedge algebras and the representations of the Lorentz group. We connect the representations of SO(1,2) to unitary representations ofSO(3)SO(3)on the Euclidean sphere, and discuss how theP(φ)2{\mathscr P}(\varphi )_2interaction can be represented by a rotation invariant vector in the Euclidean Fock space. We present a novel Osterwalder-Schrader reconstruction theorem, which shows that physicalinfrared problemsare absent on de Sitter space. As shown in Figari, Høegh-Krohn, and Nappi (1975), the ultraviolet problems are resolved just like on flat Minkowski space. We state the Haag–Kastler axioms for theP(φ)2{\mathscr P}(\varphi )_2model and we explain how thegeneratorsof the boosts and the rotations for the interacting quantum field theory arise from thestress-energy tensor. Finally, we show that the interacting quantum fields satisfy theequations of motionin their covariant form. In summary, we argue that the de SitterP(φ)2{\mathscr P}(\varphi )_2model is the simplest and most explicit relativistic quantum field theory, which satisfies basic expectations, like covariance, particle creation, stability and finite speed of propagation.

But what do we mean by “health”? A critical perspective on the concept of health in the adolescent transition program of a Norwegian university hospital

BackgroundTo understand better what influences the practice of our transition program, we wanted to explore the underlying theory of health.MethodsWe performed a qualitative content analysis of the written material that guides the program, comprising a quality system guideline, two checklists, a guide to health professionals and managers, and three patient brochures.ResultsThe analysis resulted in the formulation of three themes; “Being on top of medical management”, “Ability to promote own health” and “Awareness of own goals and expectations”.ConclusionOur analysis indicates that the program content revolves mainly around medical management and that other dimensions of health are not emphasised. We question what the goals of the program are and if these goals are explicit and shared among the program stakeholders. An explicit program theory is vital and needs to be evident in material supporting transition programs.

ANALYSIS OF RACIAL DISCRIMINATION ASPECTS BASED ON GORDON ALLPORT’S THEORY DEPICTED IN FRUITVALE STATION MOVIE (2013)

Fruitvale Station is a movie based on the true story of a shooting at a Fruitvale Station in Oakland, California, by a white police officer named Johannes Mehserle against a black man named Oscar Grant III. Oscar Grant, who was the victim of a conflict on a train that stopped at Fruitvale Station, was instead made a suspect in the incident by police officers who wanted to secure the train and was shot dead without any evidence of guilt or legal proceedings first. Thus, using Gordon Allport's Intentional, Explicit Discrimination theory, the authors analyzed the types of racial discrimination in the movie Fruitvale Station. Racial discrimination includes verbal antagonism, avoidance, segregation, physical attacks, and extermination. The author’s method to collect data is qualitative descriptive by examining the Fruitvale Station movie to understand the movie as the primary data. The authors will also include the dialogue from the script as secondary data. The findings of this study reveal five discriminatory behaviors (particularly discrimination based on race) committed by white characters against African-American characters in this movie.&#x0D;

Curriculum theories in articles on Biology and Youth and Adult Education in Brazil

Youth and Adult Education (YAE) is a modality of basic education that serves a public with different gaps in access and permanence in school. In this sense, this work aimed to analyze the explicit and implicit Curriculum Theories on the Biology component in YAE. For that, 32 articles from the last 15 years were analyzed. Theoretically grounded, the findings were grouped according to Traditional, Critical, and Post-Critical Curriculum Theories, a total of ten, eight, and 14 works, respectively. The Traditional ones are teacher-centered and retain an emphasis on concepts and assessments. Students' manifestations are clues for the configuration of Critical and Post-Critical curricula. In this curriculum construction, the students' experiences are validated. Emotions, expectations for life projects, culture, education for ethnic-racial relations, gender and sexualities, and ethno-knowledge are present. It is within this plurality that Biology Curricula in YAE need to engage.

Genuine Fascist Theory or Non-Systematic Conceptualisations of the New Authoritarian Order?

Abstract This article analyses legal texts written by Nikolaos Koumaros that were foundational to the 4th of August regime in Greece. It demonstrates the regime possessed an ideology that did not differ substantially from other authoritarian regimes of the period. In particular, the choice of Koumaros as the central legal theorist of the regime can be explained by his familiarity with anti-liberal theories of the time. His engagement with these theories was linked with his studies in France and Italy during the interwar period, exposing him to fascist ideals. A detailed examination of the conceptual transfers that informed the main legal texts of the regime demonstrated their reasoning followed closely the theoretical developments of the time. Mussolini’s doctrine of fascism and a specific reading of Rousseau functioned as the basis for the legitimisation of a new, anti-liberal political order. These ideas became key analytical pillars of the legal texts that gave shape to the regime’s normative and political foundation, demonstrating that explicit fascist theories informed the political physiognomy of the regime.

“Flying over the crisis”: A study on interdisciplinary metaphors of resilience

Background/Aim: Metaphors on theoretical concepts may be congruent or divergent from their explicit definitions. We carried out a secondary qualitative analysis on metaphors of members of an interdisciplinary research group on resilience and investigated: (A) Which metaphors do experts in different disciplines use to describe people showing resilience? (B) Do these (implicit) metaphors support the (explicit) theses of the research group on resilience? (C) Do we find differences between experts from different disciplines in the use of metaphors on resilience? Method: Nine guideline-based interviews with experts from medicine, psychology, philosophy, and theology were studied using a systematic metaphor analysis, basing on inductive and deductive categorizations. Results: Eight metaphor sources were identified, for example, battle, path. Experts used similar metaphors to describe resilience that often overarched the concepts of resilience as a trait, process, and outcome. Moments of vulnerability within the resilience trajectory were found. Conclusions: The analysis revealed high concordance of metaphors across different disciplines, reflecting both the ideas of the group as well as the mainstream view of resilience. This supports that implicit concepts may be more difficult to reframe than explicit theories. Few differences between disciplines may point to the impact of an overarching Western concept of individual resilience.