10,348 research outputs found

    Holographic renormalisation group flows and renormalisation from a Wilsonian perspective

    Full text link
    From the Wilsonian point of view, renormalisable theories are understood as submanifolds in theory space emanating from a particular fixed point under renormalisation group evolution. We show how this picture precisely applies to their gravity duals. We investigate the Hamilton-Jacobi equation satisfied by the Wilson action and find the corresponding fixed points and their eigendeformations, which have a diagonal evolution close to the fixed points. The relevant eigendeformations are used to construct renormalised theories. We explore the relation of this formalism with holographic renormalisation. We also discuss different renormalisation schemes and show that the solutions to the gravity equations of motion can be used as renormalised couplings that parametrise the renormalised theories. This provides a transparent connection between holographic renormalisation group flows in the Wilsonian and non-Wilsonian approaches. The general results are illustrated by explicit calculations in an interacting scalar theory in AdS space.Comment: 63 pages. Minor changes and references added. Matches JHEP versio

    Beyond Collective Efficacy: New Brief Measures to Assess the Outer Layers of the Social Ecology

    Get PDF
    Abstract Introduction: Community support can be a valuable interpersonal resource anywhere, yet past research has largely been focused on adults in urban neighborhoods. Because communities are no longer solely defined by a shared physicality, we offer psychometric data on three new measures to assess other communal resources: informal community support, support for community youth, and workplace integration. Methods: Participants (N=1706) from a largely rural, low-income Southern region completed a computer-assisted questionnaire as part of a larger study on character development and personal strength. Ages range from 11 to 70 years old (M=29.3 years; SD=12.3 years); 63% of participants are female. Results: Internal consistency was good for our 3 new measures, .70 to .86 and each scale comprised a single factor in exploratory factor analyses. Correlations with collective efficacy (convergent validity) were all positive and significant and range from .18 to .57. Correlations with measures of subjective well-being range from .21 to .29, and correlations with mental and physical health outcomes ranged from .14 to .23. Implications: Studying communities in addition to individuals and families can potentially shed light on the variety of ways in which community ties can foster well-being and resilience. The three new measures presented here assess important but understudied aspects of communities

    Investigation of the Water-retaining Capacity of the Carbohydrate Complex of Rye-wheat Dough with Addition of Polyfunctional Food Supplement “MagnetofĐŸĐŸd”

    Full text link
    Today in Ukraine the share of low-quality bakery products is near 20–25 %, because they often don\u27t correspond to quality standards and sanitary norms, because of being produced of flour with low bakery properties. That is why new raw material sources, functional ingredients and so on are searched for in bread technologies. For using new raw material and food supplement types, it is necessary to know their functional-technological properties (FTP) that allows to prognosticate the behavior of powder-like raw materials and food supplements in food masses at technological processing and storage of ready products.The water-retaining capacity (WRC) is one of main functional-technological parameters of carbohydrate-containing raw materials, because it favors the outcome, structural-mechanical properties and quality characteristics of ready products.The authors introduced “Magnetofood” polyfunctional food supplement for increasing WRC of rye-wheat dough. For grounding the mechanism of forming supramolecular groups in carbohydrate food systems: Magnetofood-polysacharide-water, there was studied the influence of “Magnetofood” food supplement on processes of hydration, swelling and water-retention by rye-wheat starch and rye-wheat flour.It was established, that introduction of “Magnetofood” food supplement in rye-wheat starch and flour in amounts: 0,10; 0,15; 0,20 % to the mass of starch or flour increases swelling and water-retaining capacity (WRC) of starch and flour: swelling in 1,3–1,5 and 1,5–2,25 times, respectively; WRC in 1,10–1,15 and 1,1–1,3 times, respectively.The rational dose of “Magnetofood” food supplement – 0,15 % to the mass of dry raw material was experimentally set. There was studied the influence of “Magnetofood” food supplement on rheological properties of water suspensions of rye-wheat starch and flour at different temperatures and different speeds of shift.It was established, that adding “Magnetofood” in amount 0,15 % favors increasing the effective viscosity of suspensions of experimental samples of starch and flour at temperatures: (23±2) ÂșĐĄ and (40±2) ÂșĐĄ comparing with control samples in average by 29,0 % – for starch and by 22,0 % – for flour at 23 °Х and by 16,0 % – for starch and by 10,0 % – for flour at 40 °Х.There was studied the dynamics of changing viscosity of colloid solutions of starch and flour, enriched with “Magnetofood” in amount 0,15 % to the mass of dry raw material in the keeping process at different temperatures and shift speed 9 s-1.There was established the increase of viscosity of suspensions of rye-wheat starch and flour in the process of infusion (especially at adding “Magnetofood”) that is connected with continuing hydration and swelling process.It was demonstrated, that the temperature increase of the colloid system from (23±20) ° ĐĄ to (40±2) °Х favors the increase of its viscosity – both at the initial moment and in infusion process during 30 min in average by 20,0–25,0 % at the expanse of the aforesaid processes. Moreover, adding “Magnetofood” accelerates and intensifies the processes of swelling and hydration of experimental samples of rye-wheat starch and flour comparing with control ones.The received experimental data may be used at elaborating the technology of rye-wheat bread, enriched with “Magnetofood” food supplement; and also at elaborating innovative technologies of carbohydrate food systems.The results of this study may be used at elaborating recipes and technologies of carbohydrate-containing food products for increasing their viscosity, water-retaining and stabilizing capacities

    Development of e-SIWES Portal: A Web based Platform for Student Industrial Work Experience Scheme (SIWES) Management

    Get PDF
    We developed the e-SIWES portal in order to enhance the manual task of carrying out SIWES activities such as registration, dissemination of information, filling of log book for students’ day-to-day activities and supervision/assessment by lecturers and industry based supervisors. The portal is web-based and allows all tasks to be carried out using the personal computer and the Internet. We digitized the SIWES logbook and assessment forms for filling by students and grading by the supervisors electronically. This will allow supervisors to be assigned immediately the students commence their industrial training and facilitate their monitoring in real-time. With the e-SIWES portal, important messages can be broadcast to all students at once and on a prompt and regular basis

    Determination of Influence of Auxiliary Ingredients on Antioxidant Activity of Extract of Leaves of the Quince and Grapes Seed Meal in Phytogel with the Use of Spectrometric Method with the Dpph Indicator System

    Get PDF
    To study an impact of auxiliary substances on gel containing extracts of quince leaves and grape seed meal, which is based on polymethylsiloxane.Pharmaco - technological and physicochemical methods. In this study, a spectrophotometric method is applied to determine an antioxidant activity of the gel.We examined an impact of auxiliary substances on the gel. According to the results of studies we chose auxiliary ingredients which improve not only gustatory quality but also technological parameters. Applying spectrometric analysis, we investigated an antioxidant activity of phytogel. The gel has a structure of rigid matrix, which is built through a process of condensation of methylsilanetriol and siloxane bonds between the silicon atoms, which makes it possible to maintain and stabilize active natural ingredients. The experiment proved that the extract of leaves of quince and grape seed meal have some antioxidant activity. But, upon the introduction of stevia extract as a coregent taste, the gel that contains quince leaf extract and grape seed meal increases the antioxidant activity. Phytogel has antioxidant activity of 84% relative to the reference sample, which suggests that the gel can resist the harmful effects of free radicals, which are constantly produced in the human organismIt was confirmed that the addition of auxiliary substances into the gel with the extracts of quince leaves and grape seed meal based on polymethylsiloxane increases bioavailability and therapeutic efficiency, in particular, the antioxidant activity, of the gel.Stevia extract as an adjuvant in the phytogel, as gustatory corrector, increases the antioxidant activity of phyto pharmaceutical drugs

    Meritor Savings Bank v. Vinson: The Supreme Court\u27s Recognition of the Hostile Environment in Sexual Harassment Claims

    Get PDF
    This casenote will examine Meritor Savings Bank v. Vinson in light of the brief legal history of Title VII sexual harassment claims and will consider the implications of both the Court\u27s holding and its dicta regarding the undecided issues

    To eat or not to eat: Urbanization and the foraging behaviors of Michigan passerines

    Get PDF
    Urbanization creates novel problems for wildlife, potentially altering the foraging behavior of passerine birds. Foraging is driven by factors like food preference and food accessibility; the foraging of urban birds may be more innovative due to frequent exposure to unfamiliar items. I hypothesized that high novelty exposure in urban birds would promote faster discovery and longer visits to novel feeders compared to rural conspecifics. Additionally, I hypothesized that birds would prioritize food quality over access regardless of habitat, but when faced with barriers, urban birds would be better at accessing food compared to rural birds because of frequent exposure to novel obstacles. Recording bird visitations to paired bird feeders of differing food quality, I found that feeder discovery was not significantly different between the seed types or habitats. Rural birds spent half as much time at low access feeders compared to urban birds; when feeders were caged, rural birds discovered both seed types more quickly than the urban counterparts. Additionally, higher-quality food had greater consumption in both environments regardless of accessibility, although rural birds removed more low-quality food than urban birds when the more nutritional option was obstructed. This study reveals the importance of food preferences in driving avian feeding behaviors and how bird communities may be shaped by the food quality and degree of fragmentation of the habitat

    The carry-over value of high school girls physical activities

    Full text link
    Thesis (M.A.)--Boston University, 1948. This item was digitized by the Internet Archive

    \u27The letter killeth\u27: The obscurity of language and communication in Thomas Hardy\u27s Jude the Obscure

    Get PDF
    While the epistolary novel is a genre closely associated with 18th century England, 19th century Victorian literature also incorporates letter writing as a significant form of communication. Written messages convey what can often not be said out loud, as it is easier to hide behind a pen and paper, write in solitude, and be absent when the letter is read by the recipient. Impulsive and emotional thoughts and feelings can be written down immediately and then later edited, which makes writing an unstable form of communication. Is the author conveying true feelings or concealing true feelings? Layering multiple modes of language within a novel, such as letters, notes, and verbal communication creates problematic communication in relationships. A written statement will either contradict or reinforce what is verbally stated, but the validity of the written word is also questionable. This essay will analyze the obscurity1 of language in Thomas Hardy’s novel, Jude the Obscure, and the ways in which written communication and intertextuality both define and complicate relationships between characters, as well as a character’s relationship to the world through religion, education, and marriage. More specifically, I will examine communications by letter writing for moments of contradiction, degrees of formality, and the ways in which characters such as Jude Fawley, Sue Bridehead, Arabella Donn, and Richard Phillotson use letter writing to convey the truth, tell a lie, or confess what cannot be said out loud. Furthermore, this paper will study the insertions of intertextuality within Jude and how such epigraphs function to illuminate the ways in which Jude and Sue are attempting to negotiate their role within Victorian society. 1 The term obscure will be used in this text to define what is ambiguous or uncertain, and also the notion of concealment. Obscurity of language in the text functions to mask characters’ true feelings if they are not perceived to be socially acceptable. 3 The first part of this essay will pursue letters and notes as communication devices between characters and the ways in which written communication can obfuscate the meaning of language and the message being conveyed. But first, it is important to discuss one significant epigraph that connects letters to intertextuality and Jude’s relationship to the written word: ‘the letter killeth’ quoted by Jude (Hardy 338). ‘The letter killeth’ references the letter of Christian law, and more specifically Christian marriage law. However, Hardy uses the idea of the ‘letter’ to ‘kill’ in multiple ways throughout the novel
    • 

    corecore