5,022 research outputs found
Renormalization group properties of the conformal mode of a torus
No full textThe Wilsonian renormalization group properties of the conformal factor of the metric are profoundly altered by the fact that it has a wrong-sign kinetic term. If couplings are chosen so that the quantum field theory exists on , it fails to exist on manifolds below a certain size, if a certain universal shape function turns negative. We demonstrate that this is triggered by inhomogeneity in the cases of and , including twisted versions. Varying the moduli, we uncover a rich phenomenology
The continuum limit of quantum gravity at first order in perturbation theory
No full textThe Wilsonian renormalization group (RG) properties of the conformal factor of the metric are profoundly altered by the fact that it has a wrong-sign kinetic term. The result is a novel perturbative continuum limit for quantum gravity, which is however non-perturbative in ħ. The ultraviolet part of the renormalized trajectory lies outside the diffeomorphism invariant subspace, entering this subspace only in the infrared, below a dynamically generated amplitude suppression scale. Interactions are dressed with coefficient functions of the conformal factor, their form being determined by the RG. In the ultraviolet, the coefficient functions are parametrised by an infinite number of underlying couplings. Choosing these couplings appropriately, the coefficient functions trivialise on entering the diffeomorphism invariant subspace. Here, dynamically generated effective diffeomorphism couplings emerge, including Newton’s constant. In terms of the Legendre effective action, we establish the continuum limit to first order, characterising the most general form of such coefficient functions so as to verify universality.</p
sj-docx-1-hpx-10.1177_00185787241232112 – Supplemental material for Chemical Stability of Lorazepam Oral Solution Repackaged in Plastic Oral Syringes at Room and Refrigerated Temperatures
No full textSupplemental material, sj-docx-1-hpx-10.1177_00185787241232112 for Chemical Stability of Lorazepam Oral Solution Repackaged in Plastic Oral Syringes at Room and Refrigerated Temperatures by Stacy D. Brown, Sophia Sergent, Samantha Morris, Michelle Tubolino and Timothy Coffey in Hospital Pharmacy</p
Deconstructing ‘retrieval mode’
No full textM. Naveh-Benjamin, M. Moscovitch, H.L. Roediger, III, Prologue/Preface. Part I: Levels of Processing and Memory Theory. M.J. Watkins, Introduction. E. Tulving, Does Memory Encoding Exist? H.L. Roediger, III, D.A. Gallo, Levels of Processing: Some Unanswered Questions. B.M. Velichkovsky, Levels of Processing: Validating the Concept J.M. Gardiner, A. Richardson-Klavehn, C. Ramponi, B.M Brooks, Involuntary Levels of Processing Effects in Perceptual and Conceptual Priming. B.A. Levy, Fluent Text Processing: Using Memory Representations to Explore Reading Skills. R.S. Lockhart, Discussion. Part II: Working Memory and Attention. M.T. Turvey, Introduction. Working Memory. A.D. Baddeley, Levels of Working Memory. T. Shallice, Deconstructing "Retrieval Mode". Working Memory and Aging. J.M. McDowd, Levels of Processing in Selective Attention and Inhibition: Age Differences and Similarities. D.C. Park, T. Hedden, Working Memory and Aging. M. Daneman, Discussion. Attention at Encoding and Retrieval. M. Moscovitch, Divided Attention, Memory and Neuropsychology. M. Naveh-Benjamin, The Effects of Divided Attention on Encoding Processes: Underlying Mechanisms. N.D. Anderson, The Attentional Demands and Attentional Control of Encoding and Retrieval. C.M. MacLeod, Discussion. Part III: Aging. A.S. Benjamin, Introduction. Age-related Changes in Memory. L.L. Jacoby, E.L. Marsh, P.O. Dolan, Forms of Bias: Age Related Differences in Memory. L-G. Nilsson, Aging, Cognition, and Health. E.L. Glisky, Source Memory, Aging, and the Frontal Lobes. Age-related Changes in Perception and Cognition. T.A. Salthouse, The Broader Context of Craik's Self Initiated Processing Hypothesis. L. Hasher, S.T. Tonev, C. Lustig, Inhibitory Control, Environmental Support, and Self-initiated Processing in Aging. B.A. Schneider, Sensation, Cognition, and Levels of Processing in Aging. L.L. Light, Discussion. Part IV: Neuroscience Perspectives: Memory and Aging. Memory and Aging. A. Randal McIntosh, Introduction. C.L. Grady, Age-related Changes in the Functional Neuroanatomy of Memory. D.T. Stuss, M.A. Binns, Aging: Lot an Escarpment, but Multiple Slopes. P. Vidailhet, B.K. Chrisensen, J.M Danion, S. Kapur, Episodic Memory Impairment in Schizophrenia: A View from Cognitive Psychopathology. W. Koutstaal, D.L. Schacter, Memory Distortion and Aging. G. Winocur, Discussion
Unified mathematical treatment of complex cascaded bipartite networks: The case of collections of journal papers
No full textIn this study, a mathematical treatment is proposed for analysis of entities and relations among entities in
complex networks consisting of cascaded bipartite networks. This treatment is applied to the case of
collections of journal papers. In this case, entities are distinguishable objects and concepts, such as papers,
references, paper authors, reference authors, paper journals, reference journals, institutions, terms, and term
definitions. Relations are associations between entity-types such as papers and the references they cite, or
paper authors and the papers they write. An entity-relationship model is introduced that explicitly shows
direct links between entity-types and possible useful indirect relations. From this a matrix formulation and
generalized matrix arithmetic are introduced that allow easy expression of relations between entities and
calculation of weights of indirect links and co-occurrence links. Occurrence matrices, equivalence
matrices, membership matrices and co-occurrence matrices are described. A dynamic model of growth
describes recursive relations in occurrence and co-occurrence matrices as papers are added to the paper
collection. Graph theoretic matrices are introduced to allow information flow studies of networks of papers
linked by their citations. Similarity calculations and similarity fusion are explained. Derivation of feature
vectors for pattern recognition techniques is presented. The relation of the proposed mathematical
treatment to seriation, clustering, multidimensional scaling, and visualization techniques is discussed. It is
shown that most existing bibliometric analysis techniques for dealing with collections of journal papers are
easily expressed in terms of the proposed mathematical treatment: co-citation analysis, bibliographic
coupling analysis, author co-citation analysis, journal co-citation analysis, Braam-Moed-vanRaan (BMV)
co-citation/co-word analysis, latent semantic analysis, hubs and authorities, and multidimensional scaling.
This report discusses an extensive software toolkit that was developed for this research for analyzing and
visualizing entities and links in a collection of journal papers. Additionally, an extensive case study is
presented, analyzing and visualizing 60 years of anthrax research through a collection of journal papers.
When dealing with complex networks that consist of cascaded bipartite networks, the treatment presented
here provides a general mathematical framework for all aspects of analysis of static network structure and
network dynamic growth. As such, it provides a basic paradigm for thinking about and modeling such
networks: computing direct and indirect links, expressing and analyzing statistical distributions of network
characteristics, describing network growth, deriving feature vectors, clustering, and visualizing network
structure and growth
Aftereffects of Intermittent Theta-Burst Stimulation in Adjacent, Non-target Muscles
No full textTo assess motor cortex neurophysiology, including the mechanisms of neuroplasticity, transcranial magnetic stimulation (TMS) is typically applied to the motor "hotspot"- the optimal site for inducing a twitch in a given target muscle. It is known that the effects of suprathreshold repetitive TMS (rTMS) spread along functional connections beyond the specific cortical stimulation target, and yet, it is unknown whether the aftereffects of subthreshold intermittent theta-burst stimulation (iTBS), an ultra-high frequency patterned rTMS protocol, extend beyond the targeted muscle. We investigated whether and to what extent iTBS induces changes in the cortical output to other intrinsic hand muscles with adjacent cortical representation to the target. 16 healthy adults underwent neuronavigated TMS-iTBS targeting the first dorsal interosseus (FDI) hotspot. Proportion of motor evoked potentials (MEPs) at the resting motor threshold (RMT), baseline MEP amplitude, and iTBS-induced changes in MEP amplitude were compared between FDI, abductor pollicis brevis (APB) and abductor digiti minimi (ADM) muscles. MEP amplitudes recorded from the three muscles at RMT and suprathreshold intensities indicated the chosen hotspots were relatively selective for FDI. Nevertheless, iTBS induced significant facilitation of MEPs recorded from both FDI and APB, but not ADM. Surprisingly, the MEP modulation was greater in APB, even when controlling for the baseline MEP amplitude. These results indicate that iTBS modulation of cortico-spinal excitability extends beyond the representation of the targeted muscle. Results have implications both for how iTBS may be used in clinical treatment and for the safety guidelines for the application of iTBS
A study towards yield optimization for the Expanded Tobacco II process of Philip Morris Holland B.V.
No full textIn the tobacco industry, Philip Morris Holland B.V., part of Philip Morris International, is a cigarette manufacturing company. Within its Primary department tobacco leaves are pretreated in such a way to meet the requirements for cigarette production, which is done in the Secondary department. Tobacco pretreatment processes are: cutting, adding moisture, sauces, semi-finished products and flavors. One of the semi-finished products is expanded tobacco. The aim of a expanded tobacco production process is to stretch the tobacco cells in order to create a permanent volume increase. Tobacco expansion within Philip Morris Holland B.V. is accomplished by means of the Dry Ice Expanded Tobacco technology. In several process steps tobacco cells get impregnated with liquid CO2, which together with the intercellular moisture reacts whereby CO2-hydrate forms. After a impregnation cycle has been completed, the tobacco cells are quickly heated to a temperature of 300ºC. Due to the temperature increase, the CO2-hydrate inside the tobacco cells disintegrates and causes enough gas, and as a result inner pressure, to stretch the cells to the desired volume. The hot expanded tobacco gets cooled down and finally moisture is added to meet the final product requirements. During the several process steps multiple tobacco waste flows, which consist of tobacco fines (dust), are separated from the main tobacco material flow. Since tobacco in general is an expensive material Philip Morris Holland B.V. has the demand for waste reduction…Mechanical, Maritime and Materials EngineeringMarine and Transport TechnologyTransport Engineering and Logistics2014.TEL.783
Rhetorical stance in William Morris
No full textWilliam Morris's extensive repertoire of prose and poetic works composed during the mid to late nineteenth century have evoked reactions from critics and scholars that range from indifference to admiration. Reviewers, using sundry critical approaches, have considered many important aspects and have expressed varied opinions about Morris's writings. In fact, the diverse interpretations of Morris's writings hinder the determination of a comprehensive view of this artist's works and suggest a need for a more holistic approach to examine this literature. For this reason, this study uses rhetorical stance as a heuristic for uncovering ideas existing in the literature that communicate a sense of unity in the author's seemingly varied writing.
Several studies assist in the process of ascertaining Morris's rhetorical stance. Sources on rhetorical theory supply information that helps to define stance and the manner in which it may operate within the writer's texts. The Rhetoric of Aristotle (Lane Cooper, ed., Englewood Cliffs, NJ: Prentice, 1960) provides basic details on the function of the elements comprising stance--ethos, pathos, and logos. James E. Porter's Audience and Rhetoric (Englewood Cliffs, NJ: Prentice, 1992) suggests the effects of stance in the dynamic relationship between rhetor and audience. Other sources such as Florence Boos's monograph The Design of William Morris' Earthly Paradise (Lewiston, NY: Edwin, 1990) and the collection of essays, Socialism and the Literary Artistry of William Morris (Boos and Carole Silver, eds, Columbia: U of Missouri P, 1990), assist in the interpretation of Morris's literary ideas.
The extraction of Morris's rhetorical stance from his poetry and prose serves as a deconstructive tool through which one may get at the essence of this author's act and art of communication. An intuitive artist, Morris displays in all of his works his comprehension of his shifting relationship with himself and the Victorian Age. As he works to balance his evolving concept of his readers with his own demands and persuasive ends, he diversifies his rhetorical stance. Four specific phases seem to signal these changes in stance: abstruseness, introspection, practicality, and practical/idealism. Thus, the consideration of Morris's evolving stance helps to determine his growth as an author, his association with his age, and his relationship with other works along the literary continuum. Morris uses his writing as a tool for inviting social improvement
Sermons on Various Subjects
No full textIn the Preface, Morris writes that he published this book to help meet a need for “instructive discourses on various religious subjects, suited in matter, manner, and cost to our people” (p. 3). John F. Marlay, Morris’ biographer, believed he was successful, describing the sermons as “admirable specimens of the plain, pointed, and vigorous style of the author.” The book, he maintained, “will doubtless occupy a permanent place among the sermon literature of the Church” (p. 171).https://mds.marshall.edu/morris_thomasasbury/1003/thumbnail.jp
Good and sufficient reason to rebel : Detroit, the Briggs Manufacturing Company, and the people who created the UAW
No full textAuthor Robert Morris delivers a talk entitled, "'Good and Sufficient Reason to Rebel': Detroit, the Briggs Manufacturing Company, and the People Who Created the UAW." Morris talks about the people of UAW Local 212, including his own father, and their successful efforts to unionize Briggs with the assistance of organizers Emil Mazey and Richard Frankensteen. Morris describes working conditions in the Briggs plant and how the UAW strategized to win contracts. He explains the connections between Briggs and notorious Detroit gangster Santo Perrone, assassination attempts against Walter and Victor Reuther, and a Federal investigation. Morris answers questions from the audience. Morris is introduced by Michigan State University Professor John P. Beck. Part of the "Our Daily Work/Our Daily Lives" Brown Bag series co-sponsored by the MSU School of Human Resources and Labor Relations, the MSU Museum, and the Motorcities Automobile National Heritage Area. Held in the MSU Museum auditorium
- …
