cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Woman in Athens of the 5th century B.C. Her role in society; her role in contemporary drama; a comparative study.
Creators: name: O'Neill, Jean Kathleen
Publisher: name: The Open University
Year: 1986

description: An evaluation of the role of women in fifth century Athens, through an examination of the contextual environment, presents the possibility that, although appearing to hold a subsidiary position in a male-dominated society, in actuality, the citizen-class woman had a covert power which was acceptable to, and accepted by, a society which respected and protected her. This role of potential influence was carried over into the drama, where the choice of particular episodes by Aeschylus, Sophocles and Euripides, whose works form the sole extant corpus, emphasises the importance of the female position, and has assumed a universally applicable relevance through the realism and accuracy of the characterisations. The development of institutionalised drama in this century was only incidentally as entertainment. Its primary functions were spiritual and didactic, thus providing an opportunity for the communication of truths, basic to existence, to an audience who, within such an environment of sensory totality, were receptive to, and capable of, influence by the dramatist's words. Love and peace are essential for man's well-being and, indeed, for his survival. It is necessary constantly to remind him of this. Analysis of particular plays reveals that, whether intentionally or not, these two elements dominate and shape the form of the dramatist's message. Women the bearers of life, are the chosen media for this vital communication.
Quantum frequency locking and down-conversion in a driven cavity-qubit system
Creators: name: Nathan, Frederik
name: Refael, Gil
name: Rudner, Mark S.
name: Martin, Ivar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study a periodically driven qubit coupled to a quantized cavity mode. Despite its apparent simplicity, this system supports a rich variety of exotic phenomena, such as topological frequency conversion as recently discovered in [Martin et al, PRX 7, 041008 (2017)]. Here we report on a qualitatively different phenomenon that occurs in this platform, where the cavity mode's oscillations lock their frequency to a rational fraction $r/q$ of the driving frequency $Ω$. This phenomenon, which we term quantum frequency locking, is characterized by the emergence of $q$-tuplets of stationary (Floquet) states whose quasienergies are separated by $Ω/q$, up to exponentially small corrections. The Wigner functions of these states are nearly identical, and exhibit highly-regular and symmetric structure in phase space. Similarly to Floquet time crystals, these states underlie discrete time-translation symmetry breaking in the model. We develop a semiclassical approach for analyzing and predicting quantum frequency locking in the model, and use it to identify the conditions under which it occurs.
Underpinning The STEM Agenda Through Technological Textiles? An exploration of design technology teachers’ attitudes.
Creators: name: Hughes, Christopher
name: Irving-Bell, Dawne
name: Wooff, David
Publisher: name: figshare
Year: 2021
Subjects: subject: Education
subject: 130106 Secondary Education
subject: FOS: Educational sciences
subject: 130108 Technical, Further and Workplace Education

description: This paper discusses ongoing research into the role of design and technology education in emerging post industrial economies. Previous work (Hughes et al., 2010) focused on the changing characteristics of textiles technology in modern times and discussed how this could inform a design and technology curriculum related to the needs of a modern textile technology workforce. This current paper reports on the second stage of the grounded theory programme in which theoretically sampled data from the first phase provides the direction and purpose for the work presented here. Within this context, this research explores practising teachers’ perceptions of textile technology associated with the emergent STEM agenda. Data gathered supports the view that technological aspects of design and technology closely linked to the STEM agenda are needed to provide a firm foundation for the design aspects of the subject. Without a STEM focus, the subject may lose its hard won importance in the UK schools and colleges’ curriculum. This is especially the case in an economic climate in which curriculum design stakeholders may be forced to review the content of the national curriculum across all key stages as a whole.
TNOs are Cool! A Survey of the transneptunian Region XV. Physical characteristics of 23 resonant transneptunian and scattered disk objects
Creators: name: Farkas-Takács, A.
name: Kiss, Cs.
name: Vilenius, E.
name: Marton, G.
name: Müller, T. G.
name: Mommert, M.
name: Stansberry, J.
name: Lellouch, E.
name: Lacerda, P.
name: Pál, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The goal of this work is to determine the physical characteristics of resonant, detached and scattered disk objects in the transneptunian region, observed mainly in the framework of the "TNOs are Cool!" Herschel Open Time Key Program. Based on thermal emission measurements with the Herschel/PACS and Spitzer/MIPS instruments we determine size, albedo, and surface thermal properties for 23 objects using radiometric modelling techniques. This is the first analysis in which the physical properties of objects in the outer resonances are determined for a notable sample. In addition to the results for individual objects, we have compared these characteristics with the bulk properties of other populations of the transneptunian region. The newly analyzed objects show a large variety of beaming factors, indicating a diversity of thermal properties, and in general, they follow the albedo-colour clustering identified earlier for Kuiper belt objects and Centaurs, further strengthening the evidence for a compositional discontinuity in the young Solar System.
description: Accepted for publication in A&A
THE ASSOCIATION OF LEADERSHIP STYLE WITH JOB SATISFACTION IN CONSULTING BUSINESSES (EMPLOYEE, MANAGER)
Creators: name: Nimry, Fares F.
Publisher: name: American University
Year: 2023

description: Literature on organizational behavior comes from a heritage of research done in industrial organizations. Because consulting businesses differ in nature from industrial ones, and from other service institutions, they may involve unique manager-subordinate relationships. Thus, this study was conducted because of the growing importance of the consulting industry, and the limited work that has been done on the relationship between manager leadership style and the job satisfaction of their employees in this type of organization. This study was conducted in two technical consulting firms, and two standardized surveys were used. The Leadership Opinion Questionnaire (LOQ) measured the leadership style of forty five managers in terms of their levels of consideration and structure. Job satisfaction was measured by the mean scores on the seven dimensions of the Existence, Relatedness and Growth (ERG) survey administered to 137 employees of these managers. The dimensions of the ERG are: pay, fringe benefits, freedom from physical danger, respect from superiors, respect from peers, respect from clients and growth. Managers and employees also responded to four demographic questions. Two hypotheses were tested: Hypothesis One. Managers who displayed high consideration, as indicated by their LOQ survey scores, would have more satisfied employees, as measured by the ERG survey scores, than managers who displayed a low consideration leadership style; Hypothesis Two. Managers who displayed high consideration and high structure leadership style would have more satisfied employees than managers with high consideration and low structure leadership style. A test of Hypothesis One by an analysis of variance routine indicated that the employees were more satisfied with their jobs on the dimensions of respect from peers and clients under high consideration managers than low consideration managers. A test of Hypothesis Two by an analysis of variance routine did not show any statistically significant differences on any of the seven job satisfaction dimensions between employees of the two manager groups. The results of this study could not definitively associate manager leadership style and employee job satisfaction. However, it suggests that manager/employees relationships be further studied in consulting organizations.
Tensile properties distribution of coir natural fiber using weibull statistics
Creators: name: Oleiwi, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: In current time, most of the composites based on polymer resins reinforced with natural fibers than synthetic fibers for environmentally friendly consideration. This work investigate the study of tensile properties distribution of coir natural fiber by using Weibull statistics to quantify the degree of variability in fiber strength. Single-fiber tensile and microscopy tests were performed to determination the tensile properties (tensile strength and modulus of elasticity) and fiber crosssectional area respectively. The experimental results showed that the coir natural fiber have a good tensile strength and modulus of elasticity of 89.91–237.46 MPa and 2.55-8.78 GPa respectively. The Weibull distribution indicates that the coir natural fiber have a high degree oflinearity of R2 = 0.942. The Weibull modulus for corn fibers was β = 3.650 , gives a good variability in tensile strength.
Delays, Inaccuracies and Anticipation in Microscopic Traffic Models
Creators: name: Treiber, Martin
name: Kesting, Arne
name: Helbing, Dirk
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We generalize a wide class of time-continuous microscopic traffic models to include essential aspects of driver behaviour not captured by these models. Specifically, we consider (i) finite reaction times, (ii) estimation errors, (iii) looking several vehicles ahead (spatial anticipation), and (iv) temporal anticipation. The estimation errors are modelled as stochastic Wiener processes and lead to time-correlated fluctuations of the acceleration. We show that the destabilizing effects of reaction times and estimation errors can essentially be compensated for by spatial and temporal anticipation, that is, the combination of stabilizing and destabilizing effects results in the same qualitative macroscopic dynamics as that of the respectively underlying simple car-following model. In many cases, this justifies the use of simplified, physics-oriented models with a few parameters only. Although the qualitative dynamics is unchanged, multi-anticipation increase both spatial and temporal scales of stop-and-go waves and other complex patterns of congested traffic in agreement with real traffic data. Remarkably, the anticipation allows accident-free smooth driving in complex traffic situations even if reaction times exceed typical time headways.
description: Major revision of the model and the simulations. Particularly, the number of model parameters has been reduced
THE ASSOCIATION OF LEADERSHIP STYLE WITH JOB SATISFACTION IN CONSULTING BUSINESSES (EMPLOYEE, MANAGER)
Creators: name: Nimry, Fares F.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 35
subject: Commerce, management, tourism and services
classificationCode: 3507
subject: Strategy, management and organisational behaviour

description: Literature on organizational behavior comes from a heritage of research done in industrial organizations. Because consulting businesses differ in nature from industrial ones, and from other service institutions, they may involve unique manager-subordinate relationships. Thus, this study was conducted because of the growing importance of the consulting industry, and the limited work that has been done on the relationship between manager leadership style and the job satisfaction of their employees in this type of organization. This study was conducted in two technical consulting firms, and two standardized surveys were used. The Leadership Opinion Questionnaire (LOQ) measured the leadership style of forty five managers in terms of their levels of consideration and structure. Job satisfaction was measured by the mean scores on the seven dimensions of the Existence, Relatedness and Growth (ERG) survey administered to 137 employees of these managers. The dimensions of the ERG are: pay, fringe benefits, freedom from physical danger, respect from superiors, respect from peers, respect from clients and growth. Managers and employees also responded to four demographic questions. Two hypotheses were tested: Hypothesis One. Managers who displayed high consideration, as indicated by their LOQ survey scores, would have more satisfied employees, as measured by the ERG survey scores, than managers who displayed a low consideration leadership style; Hypothesis Two. Managers who displayed high consideration and high structure leadership style would have more satisfied employees than managers with high consideration and low structure leadership style. A test of Hypothesis One by an analysis of variance routine indicated that the employees were more satisfied with their jobs on the dimensions of respect from peers and clients under high consideration managers than low consideration managers. A test of Hypothesis Two by an analysis of variance routine did not show any statistically significant differences on any of the seven job satisfaction dimensions between employees of the two manager groups. The results of this study could not definitively associate manager leadership style and employee job satisfaction. However, it suggests that manager/employees relationships be further studied in consulting organizations.
PRISON REFORMERS AND PENITENTIAL PUBLICISTS IN FRANCE, ENGLAND, AND THE UNITED STATES, 1774-1847 (PUNISHMENTS, CRIME, HUMANITARIANISM, CRIMINOLOGY)
Creators: name: Norris, Robert Lewis
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 43
subject: History, heritage and archaeology
classificationCode: 4303
subject: Historical studies

description: Today in the western world punishment and imprisonment are closely associated and viewed as virtually synonymous. The purpose of this dissertation is to examine the growth of imprisonment as a criminal punishment through the publications, activities and achievements of prison reformers in England, France and the United States between 1774 and 1847. Penitential incarceration and the expansion of imprisonment originated from a mix of ideological and practical considerations. Penitential prison discipline was viewed as a scientific, humane and progressive response to the problem of punishment by men who genuinely believed that improvement was possible and that a superior method of punishment had been, or was about to be, perfected. In addition to introductory, biographical and concluding material this manuscript contains chapters on the emergence of penitential penology, prison reform in the United States, European visitations to American prisons, and the battle of penitential systems in England and France.
X-ray quasi-periodic eruptions from the galactic nucleus of RX J1301.9+2747
Creators: name: Giustini, Margherita
name: Miniutti, Giovanni
name: Saxton, Richard D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Following the recent discovery of X-ray quasi-periodic eruptions (QPEs) coming from the nucleus of the galaxy GSN 069, here we report on the detection of QPEs in the active galaxy named RX J1301.9+2747. QPEs are rapid and recurrent increases of the X-ray count-rate by more than one order of magnitude with respect to a stable quiescent level. During a XMM-Newton observation lasting 48 ks that was performed on 30 and 31 May 2019, three strong QPEs lasting about half an hour each were detected in the light curves of RX J1301.9+2747. The first two QPEs are separated by a longer recurrence time (about 20 ks) compared to the second and third (about 13 ks). This pattern is consistent with the alternating long-short recurrence times of the GSN 069 QPEs, although the difference between the consecutive recurrence times is significantly smaller in GSN 069. Longer X-ray observations will better clarify the temporal pattern of the QPEs in RX J1301.9+2747 and will allow a detailed comparison with GSN 069 to be performed. The X-ray spectral properties of QPEs in the two sources are remarkably similar, with QPEs representing fast transitions from a relatively cold and likely disk-dominated state to a state that is characterized by a warmer emission similar to the so-called soft X-ray excess, a component that is almost ubiquitously seen in the X-ray spectra of unobscured, radiatively efficient active galaxies. Previous X-ray observations of RX J1301.9+2747 in 2000 and 2009 strongly suggest that QPEs have been present for at least the past 18.5 years. The detection of QPEs from a second galactic nucleus after GSN 069 rules out contamination by a Galactic source in both cases, such that QPEs ought to be considered a novel extragalactic phenomenon associated with accreting supermassive black holes.
description: Letter accepted for publication in Astronomy & Astrophysics. 6 pages, 3 figures, 1 table; plus one table and one figure in appendix
Some consequences of a noncommutative space-time structure
Creators: name: Mendes, Rui Vilela
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The existence of a fundamental length (or fundamental time) has been conjecture in many contexts. Here one discusses some consequences of a fundamental constant of this type, which emerges as a consequence of deformation-stability considerations leading to a non-commutative space-time structure. This mathematically well defined structure is sufficiently constrained to allow for unambiguous experimental predictions. In particular one discusses the phase-space volume modifications and their relevance for the calculation of the GZK sphere. Corrections to the spectrum of the Coulomb problemb are also computed.
description: 17 pages Latex, 3 figures
Tensile and Fracture Properties of Coir Fiber Green Composites Bone Plate Fixation
Creators: name: Oleiwi, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: Plates for long bone fractures are a major element of internal fixation technique includes various important developments in designs, materials, and implementation process during the last century. The main purpose of this paper was to introduce a new series of green composites as a plate for bone fracture applications. These green composites offer many advantages over traditional composites and biocomposites based on synthetic polymers. In current work, the new green composites bone plate based on two types of biopolymers involves biopolymethylmethacrylate thermoplastic material and bioepoxy thermosetting material reinforced with randomly oriented coir natural fiber at different weight fractions (5, 10, 15, and 20%) were fabricated by hand lay–up technique. Four forms of green composites; alkali treated with 1% NaOH and untreated coir biopolymethylmethacrylate groups A and B respectively, alkali treated with 1% NaOH and untreated corn bioepoxy groups C and D respectively were investigated. The mechanical properties were tested (tensile, and compact tension) under a flow of phosphate buffered saline PBS at 37 ◦C has been reported. The experimental results showed that the chemical treated coir green composites group A have the best mechanical properties than other groups under PBS condition while the untreated coir green composites group D have the weak mechanical properties due to plastization by soaked in PBS solution.
Hadronic High-energy Emission from Magnetically Arrested Disks in Radio Galaxies
Creators: name: Kimura, Shigeo S.
name: Toma, Kenji
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a novel interpretation that gamma-rays from nearby radio galaxies are hadronic emission from magnetically arrested disks (MADs) around central black holes (BHs). The magnetic energy in MADs is higher than the thermal energy of the accreting plasma, where the magnetic reconnection or turbulence may efficiently accelerate non-thermal protons. They emit gamma-rays via hadronic processes, which can account for the observed gamma-rays for M87 and NGC 315. Non-thermal electrons are also accelerated with protons and produce MeV gamma-rays, which is useful to test our model by proposed MeV satellites. The hadronic emission from the MADs may significantly contribute to the GeV gamma-ray background and produce the multi-PeV neutrino background detectable by IceCube-Gen2. In addition, gamma-rays from MADs provide electron-positron pairs through two-photon pair production at the BH magnetosphere. These pairs can screen the vacuum gap, which affects high-energy emission and jet-launching mechanisms in radio galaxies.
description: 14 pages, 5 figures, 1 table, published in ApJ. Fixed typos
PRISON REFORMERS AND PENITENTIAL PUBLICISTS IN FRANCE, ENGLAND, AND THE UNITED STATES, 1774-1847 (PUNISHMENTS, CRIME, HUMANITARIANISM, CRIMINOLOGY)
Creators: name: Norris, Robert Lewis
Publisher: name: American University
Year: 2023

description: Today in the western world punishment and imprisonment are closely associated and viewed as virtually synonymous. The purpose of this dissertation is to examine the growth of imprisonment as a criminal punishment through the publications, activities and achievements of prison reformers in England, France and the United States between 1774 and 1847. Penitential incarceration and the expansion of imprisonment originated from a mix of ideological and practical considerations. Penitential prison discipline was viewed as a scientific, humane and progressive response to the problem of punishment by men who genuinely believed that improvement was possible and that a superior method of punishment had been, or was about to be, perfected. In addition to introductory, biographical and concluding material this manuscript contains chapters on the emergence of penitential penology, prison reform in the United States, European visitations to American prisons, and the battle of penitential systems in England and France.
Alma Mater Society of the University of British Columbia New Student Union Energy Dashboard Project
Creators: name: Chan, Collyn
Publisher: name: The University of British Columbia
Year: 2017

description: The Alma Mater Society of UBC (AMS) is currently in the construction phase of the New Student Union Building (SUB). The design for the building aims to achieve Leadership in Energy & Environmental Design (LEED) Platinum status, their highest green building rating. One required feature the society is looking to implement is a consumption feedback tool to engage occupants of the building through an energy dashboard. This report assesses techniques that should be utilized for energy dashboards to assist in promoting sustainable behaviours targeted by the AMS within the building. Based on a literature review, I assessed several dashboard designs already available in the industry as well as the challenges faced by these interfaces. After, community based social marketing and digital communications strategies were identified as criteria for the design of the dashboard for the new AMS building. I then analyzed other factors of behaviour change needed to achieve objectives identified by the AMS that a typical building dashboard would not usually accommodate. As requested by the AMS, consultations with relevant stakeholders were held to establish a recommendation for the appropriate technologies needed to move forward. The positive behavioural effects of existing energy dashboards dwindle over time (Hargreaves et al., 2010). Existing energy dashboards need additional motivators in order to establish sustainable behaviours in a building such as the New SUB. Effective communication is an important aspect of promoting sustainable behaviours and the building dashboard must adhere to digital communication strategies in addition to its role as a consumption feedback tool. However, studies show that sustainable behaviours are best motivated when one is immersed in a culture of environmental stewardship. The AMS must establish this culture within the building, in which energy dashboards will only play a part. Due to the scope of the initial project, which focused on the design of the dashboard system, recommendations for establishing social norms are limited. I recommend that further study be conducted in this area to establish the best combination of communication and social programming within the New SUB. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Capacities of Quantum Channels and How to Find Them
Creators: name: Shor, P. W.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We survey what is known about the information transmitting capacities of quantum channels, and give a proposal for how to calculate some of these capacities using linear programming.
description: 26 pages, 3 figures, invited talk for 18th International Symposium on Mathematical Programming, Copenhagen, Denmark, August 2003
Orbital Freezing in FeCr2S4 Studied by Dielectric Spectroscopy
Creators: name: Fichtl, R.
name: Lunkenheimer, P.
name: Hemberger, J.
name: Tsurkan, V.
name: Loidl, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Broadband dielectric spectroscopy has been performed on single-crystalline FeCr2S4 revealing a transition into a low-temperature orbital glass phase and on polycrystalline FeCr2S4 where long-range orbital order is established via a cooperative Jahn-Teller transition. The freezing of the orbital moments is revealed by a clear relaxational behavior of the dielectric permittivity, which allows a unique characterization of the orbital glass transition. The orbital relaxation dynamics continuously slows down over six decades in time, before at the lowest temperatures the glass transition becomes suppressed by quantum tunneling.
description: 4 pages, 4 figures
Optical and electronic properties of colloidal CdSe Quantum Rings
Creators: name: Xiao, James
name: Liu, Yun
name: Steinmetz, Violette
name: Çağlar, Mustafa
name: Hugh, Jeffrey Mc
name: Baikie, Tomi
name: Gauriot, Nicolas
name: Nguyen, Malgorzata
name: Ruggeri, Edoardo
name: Andaji-Garmaroudi, Zahra
name: Stranks, Samuel D.
name: Legrand, Laurent
name: Barisien, Thierry
name: Friend, Richard H.
name: Greenham, Neil C.
name: Rao, Akshay
name: Pandya, Raj
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Luminescent colloidal CdSe nanorings are a new type of semiconductor structure that have attracted interest due to the potential for unique physics arising from their non-trivial toroidal shape. However, the exciton properties and dynamics of these materials with complex topology are not yet well understood. Here, we use a combination of femtosecond vibrational spectroscopy, temperature-resolved photoluminescence (PL), and single particle measurements to study these materials. We find that on transformation of CdSe nanoplatelets to nanorings, by perforating the center of platelets, the emission lifetime decreases and the emission spectrum broadens due to ensemble variations in the ring size and thickness. The reduced PL quantum yield of nanorings (~10%) compared to platelets (~30%) is attributed to an enhanced coupling between: (i) excitons and CdSe LO-phonons at 200 cm-1 and (ii) negatively charged selenium-rich traps which give nanorings a high surface charge (~-50 mV). Population of these weakly emissive trap sites dominates the emission properties with an increased trap emission at low temperatures relative to excitonic emission. Our results provide a detailed picture of the nature of excitons in nanorings and the influence of phonons and surface charge in explaining the broad shape of the PL spectrum and the origin of PL quantum yield losses. Furthermore, they suggest that the excitonic properties of nanorings are not solely a consequence of the toroidal shape but are also a result of traps introduced by puncturing the platelet center.
description: 38 pages, 10 figures
A DIAGNOSTIC ANALYSIS OF THE LEAST RESTRICTIVE ENVIRONMENT BY SUCCESSFUL AND UNSUCCESSFUL SCHOOL DISTRICTS (ADMINISTRATION)
Creators: name: Raimondi, Sharon Lee
Publisher: name: American University
Year: 2023

description: This study compared the differences between successful and unsuccessful school districts in their implementation of the least restrictive environment mandate. The purpose of this study was to provide a description of the status of seven critical administrative factors in local education agencies. The seven critical administrative factors are: Organizational support for the LRE concept, selection of appropriate service delivery patterns, assignment of personnel, a responsive staff development program, school personnel acceptance, community acceptance and parental acceptance. Differences in the level of importance, success and implementation of these seven factors by successful and unsuccessful school districts were compared. Variables such as per pupil expenditure, percentage of handicapped students served, district size were also investigated. Forty-six school districts from sixteen states participated in this study. Group I consisted of twenty-one school districts which were unsuccessful in the implementation of LRE. Group II consisted of twenty-five that were successful in the implementation of LRE. The subjects were located in sixteen different states. Five of these states are in the East, two from the South, two from the West, and seven from the Midwest. Subjects were voluntary and given anonymity. The research design was descriptive. Data were collected from two instruments: (1) the Diagnostic Profile a questionnaire developed by Stetson, Elting, Gibbs, and Raimondi, (1981) and (2) the LEA Profile an instrument designed to gather demographic information. Using t-test comparisons, the following hypotheses were tested: (1) There will be differences between successful and unsuccessful school districts and their ratings of the seven critical factors. (2) Successful school districts will have a smaller per pupil expenditure for special education than unsuccessful school districts. (3) Successful school districts will serve a greater percentage of handicapped students than unsuccessful school districts. (4) The district size of successful school districts will be larger than unsuccessful school districts. Results of this study provided a profile of the implementation of the least restrictive environment by successful and unsuccessful school districts. No significant differences between the two groups were found.
title: Alumina Supported Iron Catalysts for Selective Acetylene Hydrogenation Under Industrial Front‐End Conditions
Creators: name: Lamers, Hannah
name: Schummer, Malte
name: Lucas, Martin
name: Rose, Marcus
Publisher: name: Wiley-VCH
Year: 2025

description: The removal of acetylene traces from ethylene streams coming from the steamcracker is carried out in the industry on an annual scale of several million tons using Pd‐Ag/Al₂O₃ catalysts. The substitution of palladium containing catalysts with more abundant, cheap, and nontoxic materials is a first crucial step toward a more sustainable chemical industry. As iron is one of the most abundant metals and can be mined in almost all regions worldwide, it is an ideal catalyst material. In this work, we present the development of α‐alumina supported iron catalysts with 1, 5, and 10 wt% iron loading and their application in the selective acetylene hydrogenation under industrially applied front‐end conditions. The catalysts were prepared via simple incipient wetness‐impregnation and were analyzed via XRD, XRF, TPR, TEM, and N₂‐physisorption. The catalysts were subsequently calcined, reduced, and tested in the selective acetylene hydrogenation. After an activation phase, the catalysts show excellent activity and selectivity in the acetylene hydrogenation at 90 °C without significant ethylene hydrogenation. The excellent catalytic activity underline the great potential of iron based catalysts as an alternative to conventional Pd‐containing materials.
A DIAGNOSTIC ANALYSIS OF THE LEAST RESTRICTIVE ENVIRONMENT BY SUCCESSFUL AND UNSUCCESSFUL SCHOOL DISTRICTS (ADMINISTRATION)
Creators: name: Raimondi, Sharon Lee
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3904
subject: Specialist studies in education

description: This study compared the differences between successful and unsuccessful school districts in their implementation of the least restrictive environment mandate. The purpose of this study was to provide a description of the status of seven critical administrative factors in local education agencies. The seven critical administrative factors are: Organizational support for the LRE concept, selection of appropriate service delivery patterns, assignment of personnel, a responsive staff development program, school personnel acceptance, community acceptance and parental acceptance. Differences in the level of importance, success and implementation of these seven factors by successful and unsuccessful school districts were compared. Variables such as per pupil expenditure, percentage of handicapped students served, district size were also investigated. Forty-six school districts from sixteen states participated in this study. Group I consisted of twenty-one school districts which were unsuccessful in the implementation of LRE. Group II consisted of twenty-five that were successful in the implementation of LRE. The subjects were located in sixteen different states. Five of these states are in the East, two from the South, two from the West, and seven from the Midwest. Subjects were voluntary and given anonymity. The research design was descriptive. Data were collected from two instruments: (1) the Diagnostic Profile a questionnaire developed by Stetson, Elting, Gibbs, and Raimondi, (1981) and (2) the LEA Profile an instrument designed to gather demographic information. Using t-test comparisons, the following hypotheses were tested: (1) There will be differences between successful and unsuccessful school districts and their ratings of the seven critical factors. (2) Successful school districts will have a smaller per pupil expenditure for special education than unsuccessful school districts. (3) Successful school districts will serve a greater percentage of handicapped students than unsuccessful school districts. (4) The district size of successful school districts will be larger than unsuccessful school districts. Results of this study provided a profile of the implementation of the least restrictive environment by successful and unsuccessful school districts. No significant differences between the two groups were found.
Random Walk with Shrinking Steps: First Passage Characteristics
Creators: name: Rador, Tonguç
name: Taneri, Sencer
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the mean first passage time of a one-dimensional random walker with step sizes decaying exponentially in discrete time. That is step sizes go like $λ^{n}$ with $λ\leq1$ . We also present, for pedagogical purposes, a continuum system with a diffusion constant decaying exponentially in continuous time. Qualitatively both systems are alike in their global properties. However, the discrete case shows very rich mathematical structure, depending on the value of the shrinking parameter, such as self-repetitive and fractal-like structure for the first passage characteristics. The results we present show that the most important quantitative behavior of the discrete case is that the support of the distribution function evolves in time in a rather complicated way in contrast to the time independent lattice structure of the ordinary random walker. We also show that there are critical values of $λ$ defined by the equation $λ^{K}+2λ^{P}-2=0$ with $\{K,N\}\in{\mathcal N}$ where the mean first passage time undergo transitions.
description: Major Re-Editing of the article. Conclusions unaltered
Nuclear effects in proton transport and dose calculations
Creators: name: Salvat, Francesc
name: Quesada, José Manuel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Applied Physics (physics.app-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Interactions of protons with nuclei are modeled in a form that is suitable for Monte Carlo simulation of proton transport. The differential cross section (DCS) for elastic collisions of protons with neutral atoms is expressed as the product of the Rutherford DCS, which describes scattering by a bare point nucleus, and two correction factors that account for the screening of the nuclear charge by the atomic electrons and for the effect of the structure of the nucleus. The screening correction is obtained by considering the scattering of the projectile by an atom with a point nucleus and the atomic electron cloud described by a parameterization of the Dirac-Hartree-Fock-Slater self-consistent electron density. The DCS for scattering by this point nucleus atom is calculated by means of the eikonal approximation. The nuclear correction to the DCS for elastic collisions is calculated by conventional partial-wave analysis with a global optical-model potential that describes the interaction with the bare nucleus. Inelastic interactions of the projectile with target nuclei are described by using information from data files in ENDF-6 format, which provide cross sections, multiplicities, and angle-energy distributions of all reaction products: light ejectiles (neutrons, protons, . . . ), gammas, as well as recoiling heavy residuals. These interaction data have been used in the Monte Carlo transport code PENH, an extension of the electron-gamma code PENELOPE, which originally accounted for electromagnetic interactions only. The combined code system PENH/PENELOPE performs simulations of coupled electron-photon-proton transport. A few examples of simulation results are presented to reveal the influence of nuclear interactions on proton transport processes and on the calculation of dose distributions from proton beams.
Combining high-performance hardware, cloud computing, and deep learning frameworks to accelerate physical simulations: probing the Hopfield network
Creators: name: Vavilala, Vaibhav
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The synthesis of high-performance computing (particularly graphics processing units), cloud computing services (like Google Colab), and high-level deep learning frameworks (such as PyTorch) has powered the burgeoning field of artificial intelligence. While these technologies are popular in the computer science discipline, the physics community is less aware of how such innovations, freely available online, can improve research and education. In this tutorial, we take the Hopfield network as an example to show how the confluence of these fields can dramatically accelerate physics-based computer simulations and remove technical barriers in implementing such programs, thereby making physics experimentation and education faster and more accessible. To do so, we introduce the cloud, the GPU, and AI frameworks that can be easily repurposed for physics simulation. We then introduce the Hopfield network and explain how to produce large-scale simulations and visualizations for free in the cloud with very little code (fully self-contained in the text). Finally, we suggest programming exercises throughout the paper, geared towards advanced undergraduate students studying physics, biophysics, or computer science.
description: 23 pages, 4 figures. Eur. J. Phys (2020)
Next-to-leading order calculation of three-jet observables in hadron-hadron collision
Creators: name: Nagy, Zoltan
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The production of the three jets in hadron-hardon collision is the first more complex process which allow us to define a branch of variables in order to do more precise measurement of the strong coupling and the parton distribution function of the proton. This process is also suitable for studying the geometrical properties of the hadronic final state at hadron colliders. This requires next-to-leading order prediction of the three-jet observables. In this paper we describe the theoretical formalism of such a calculation with sufficient details. We use a the dipole method to construct Monte Carlo program for calculating three-jet observables at next-to-leading order accuracy. We present a theoretical prediction for inclusive and exclusive cross section and for some relevant event shape variables like transverse thrust, transverse jet broadening and Et3 variable.
description: 12 pages, 14 figures, REVTEX4 document, reference added
Tensile and Buckling Analysis of Polymeric Composite Columns
Creators: name: Oleiwi, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: This research studied the critical load of composite columns theoretical and numerical by using ANSYS14 package depended on experimental tensile properties of composite specimens. The composite specimens were prepared by hand lay-up technique made from unsaturated polyester reinforced with glass fibers with different fiber volume fraction Vf, aspect ratio (L/T), and angle of fibers for coarse and fine woven fibers.The critical load that obtained by using program (ANSYS 14) have also shown a good agreement with results that were obtained theoretically and the maximum difference was (0.7%).The results show that the maximum value of the critical load can be observed at Vf =11%, L/T = (3.5) and θ = (0º/90º) for fine woven fibers was (622.115N). Also its found the maximum critical load for coarse woven fibers can be observed at Vf %=8%, L/T=(3.5) and θ = (0º/90º) was (486.887N). Also the observed values of tensile properties and predicated values are scattered close to the (45˚) line.
High energy emission from microquasars
Creators: name: Fender, Rob
name: Maccarone, Tom
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The microquasar phenomenon is associated with the production of jets by X-ray binaries and, as such, may be associated with the majority of such systems. In this chapter we briefly outline the associations, definite, probable, possible, and speculative, between such jets and X-ray, gamma-ray and particle emission.
description: Contributing chapter to the book Cosmic Gamma-Ray Sources, K.S. Cheng and G.E. Romero (eds.), to be published by Kluwer Academic Publishers, Dordrecht, 2004. (19 pages)
Biomechanics of Natural Fiber Green Composites as Internal Bone Plate grafted
Creators: name: Oleiwi, Jawad K.
Publisher: name: figshare
Year: 2020
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: The main purpose of this paper was to introduce a new series of green composites as a plate for bone fracture applications. These green composites offer many advantages over traditional composites and biocomposites based on synthetic polymers. In current work, the new green composites bone plate based on two types of biopolymers involves biopolymethylmethacrylate thermoplastic material and bioepoxy thermosetting material reinforced with randomly oriented corn natural fibers at different weight fractions (5, 10, 15, and 20%) were fabricated by hand lay–up technique. Four forms of green composites ; treated and untreated corn biopolymethylmethacrylate groups A and B respectively, treated and untreated corn bioepoxy groups C and D respectively were investigated. The mechanical properties were tested (tensile, compression, and compact tension) under a flow of phosphate buffered saline PBS at 37 ◦C has been reported. The experimental results showed that the green composites group A have the best mechanical properties than other groups under PBS condition while the green composites group D have the weak mechanical properties due to plastization by immersion in PBS solution. Also, the analysis of femur bone fracture plates carried out by applying finite element method FEM using the ANSYS 16 software package.
Estimating purity in terms of correlation functions
Creators: name: Prosen, Tomaz
name: Seligman, Thomas H.
name: Znidaric, Marko
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We prove a rigorous inequality estimating the purity of a reduced density matrix of a composite quantum system in terms of cross-correlation of the same state and an arbitrary product state. Various immediate applications of our result are proposed, in particular concerning Gaussian wave-packet propagation under classically regular dynamics.
description: 3 pages