Imprint of massive neutrinos on Persistent Homology of large-scale structure

Exploiting the Persistent Homology technique and an associated complementary representation which enables us to construct a synergistic pipeline for different topological features quantified by Betti curves in reducing the degeneracy between cosmological parameters, we investigate the footprint of summed massive neutrinos ($M_{\nu}$) in different density fields simulated by the publicly available Quijote suite. Evolution of topological features in the context of super-level filtration on three-dimensional density fields, reveals remarkable indicators for constraining the $M_{\nu}$ and $\sigma_8$. The abundance of 2-holes is more sensitive to the presence of $M_{\nu}$, also the persistence of topological features plays a crucial role in cosmological inference and reducing the degeneracy associated with $M_{\nu}$ simulation rather than their birth thresholds when either the total matter density ($m$) field or those part including only cold dark matter+baryons ($cb$) is utilized. Incorporating the Betti-1 and Betti-2 for $cb$ part of $M^+_{\nu}$ simulation marginalized over the thresholds implies $5\%$ variation compared to the massless neutrinos simulation. The constraint on $M_{\nu}$ from $\beta_k$ and its joint analysis with birth threshold and persistency of topological features for total mass density field smoothed by $R=5$ Mpc h$^{-1}$ at zero redshift reach to $0.0172$ eV and $0.0152$ eV, at $1\sigma$ confidence interval, respectively.Comment: 12 pages, 8 figures, and one table, comments are welcom

Probing the Anisotropy and Non-Gaussianity in the Redshift Space through the Conditional Moments of the First Derivative

Focusing on the redshift space observations with plane-parallel approximation and relying on the rotational dependency of the general definition of excursion sets, we introduce the so-called conditional moments of the first derivative ( cmd ) measures for the smoothed matter density field in three dimensions. We derive the perturbative expansion of cmd for the real space and redshift space where peculiar velocity disturbs the galaxies’ observed locations. Our criteria can successfully recognize the contribution of linear Kaiser and Finger-of-God effects. Our results demonstrate that the cmd measure has significant sensitivity for pristine constraining the redshift space distortion parameter β = f / b and interestingly, the associated normalized quantity in the Gaussian linear Kaiser limit has only β dependency. Implementation of the synthetic anisotropic Gaussian field approves the consistency between the theoretical and numerical results. Including the first-order contribution of non-Gaussianity perturbatively in the cmd criterion implies that the N -body simulations for the Quijote suite in the redshift space have been mildly skewed with a higher value for the threshold greater than zero. The non-Gaussianity for the perpendicular direction to the line of sight in the redshift space for smoothing scales R ≳ 20 Mpc h ^−1 is almost the same as in the real space. In contrast, the non-Gaussianity along the line-of-sight direction in the redshift space is magnified. The Fisher forecasts indicate a significant enhancement in constraining the cosmological parameters Ω _m , σ _8 , and n _s when using cmd + cr jointly

Brave and kind superheroes:children’s reflections on the design protagonist role

Abstract A design protagonist role for children has recently gained attention in political participatory design, with the aim of reframing the position of a child in relation to technology. However, the concept and the characteristics of the design protagonist remain quite vague still. We conducted a “My Superhero” design project with 13‐14-year-old schoolchildren, giving them a voice, nurturing their agency, and inviting them to reflect on their design experiences and the notion of the design protagonist. The findings show the children spontaneously adopted different roles, also the design protagonist role, in the design process without us intentionally guiding them towards those. The findings reveal children’s views on the characteristics of a design protagonist and their perceptions of their own characteristics and learning within the design process. Several factors mediating children’s adoption of the protagonist role, including context, personal interest, empathy, prior joint experience, adults’ role, self-learning, and soft skills, were discovered

Re-defining characteristics of a Design Protagonist:elements of children’s design capital

Abstract The importance of child empowerment in and through design and making has been acknowledged. The notion of “child as a Design Protagonist” concerning technology has recently been introduced. We conducted a narrative literature review to examine the current understanding of what it requires from children to become a Protagonist in design. The main objective of this study is to examine the concepts associated with children’s competences relevant for design, such as various capitals, skills, and capacities. We identify core concepts used as well as several gaps in this literature base. We separate the competences into 1) those that need to be nurtured in children and 2) those that children already have and bring to the design process. We propose a concept of design capital for mapping these competences of child Design Protagonists

Workplace literacy skills:how information and digital literacy affect adoption of digital technology

Abstract Purpose: Information and digital literacy have recently received much interest, and they are being viewed as critical strategic organisational resources and skills that employees need to obtain in order to function at their workplaces. Yet, the role of employees’ literacy seems to be neglected in current literature. This paper aims to explore the roles that information and digital literacy play on the employees’ perception in relation to usefulness and ease of use of digital technologies and consequently their intention to use technology in the practices they perform at the workplace. Design/Methodology/Approach: This paper builds a conceptual model with key constructs (information literacy and digital literacy) as new antecedents to the technology acceptance model and aims to establish that information literacy and digital literacy are indirect determinants of employees’ intention to use digital technologies at the workplace. The data set used in this paper comprises of 121 respondents and structural equation modelling was used. Findings: The findings reveal that both information literacy and digital literacy have a direct impact on perceived ease of use of technology but not on the perceive usefulness. The findings also show that both literacies have an indirect impact on the intention to use digital technology at work via attitude towards use. Practical implications: Managers and decision-makers should pay close attention to the literacy levels of their staff. Because literacies are such an important skillset in the digital age, managers and chief information officers may want to start by identifying which work groups or individuals require literacy training and instruction, and then provide specific and relevant training or literacy interventions to help those who lack sufficient literacy. Originality/value: This is one of the first studies to consider information literacy and digital literacy as new antecedents of the technology acceptance model at the workplace environment

Uncovering children’s situated design capital:a nexus analytic inquiry

Abstract Nurturing children’s competences needed for their digital futures and inviting them to adopt a protagonist role within design process have recently been emphasized in child-computer interaction research. For children to be able to act as design protagonists, they need design capital. We carried out a project with 13‐14‐year-olds and inquired under what circumstances the situated design capital of children emerged, enabling them to act as design protagonists without us deliberately steering them towards that. By employing the theoretical lens of nexus analysis, several factors were discovered that mediated children to utilize their situated design capital, including distributed agency, positive peer pressure, peer learning, and identity positioning. The findings imply that children’s situated capital emanates from interactional phenomena, within which historical trajectories of the place, children, discourses, ideas, and objects intermingle

A review on nutritive effect of mulberry leaves enrichment with vitamins on economic traits and biological parameters of silkworm Bombyx mori L

Sericulture depends on rearing of silkworm on mulberry leaves; for this reason, silk production has direct relationship with larval growth on mulberry. The quality and quantity of mulberry leaves change due to climatic conditions and field practices. One of the alternative ways of improvement of larval feeding is enrichment of mulberry leaves with supplementary nutrients such as vitamins. Many studies are accomplished on the effects of mulberry leaves enrichment with vitamin on economic traits and biological parameters, and this review is the first trial for organization of all available data related to vitamins for elucidation of this topic of science

Bicyclic peptides: types, synthesis and applications

Bicyclic peptides form one of the most promising platforms for drug development owing to their biocompatibility, similarity and chemical diversity to proteins, and they are considered as a possible practical tool in various therapeutic and diagnostic applications. Bicyclic peptides are known to have the capability of being employed as an effective alternative to complex molecules, such as antibodies, or small molecules. This review provides a summary of the recent progress on the types, synthesis and applications of bicyclic peptides. More specifically, natural and synthetic bicyclic peptides are introduced with their different production methods and relevant applications, including drug targeting, imaging and diagnosis. Their uses as antimicrobial agents, as well as the therapeutic functions of different bicyclic peptides, are also discussed. © 2019 Elsevier Lt

A review of self-healable natural rubber based on reversible bonds: fundamental, design principle and performance

Natural rubber is one of nature’s most exceptional materials due to its remarkable physicochemical properties. Comparing natural and synthetic rubbers, natural rubber possesses greater performance properties, such as green strength, tear strength, tensile strength, tensile modulus and toughness. Inspired by nature, self-healing materials are attractive materials due to the capability to automatically self-heal or self-repair when damage occurs. Self-healing natural rubber is a current evolution of elastomers that could offer new properties of recycling and reprocessing ability of rubber products for environmental conservation. Furthermore, it increases the value of natural rubber as a good sustainable material in daily life. Significant efforts have been made to develop high self-healing efficiency and high mechanical performance; however, being excellent in both criteria is uncommon. This review focuses on the principle of material design that was implemented to obtain the self-healing capability of natural rubber from the combination of covalent and non-covalent bonds to obtain an optimal balance between mechanical strength and healing ability. This article also covers the methods that can be applied for self-healing testing and other important characterizations. Potential applications and challenges of self-healing rubber were also discussed. Synthetic rubbers were included in this review for comparison and future strategies