cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
L'opera di Italo Calvino
Creators: name: Baldini, Pier Raimondo
Publisher: name: University of British Columbia
Year: 2011

description: Italo Calvino, born in 1923, has been subject to the most various influences (Fascism and Marxism, World War and civil war, capitalism and bureaucracy) but by action or reaction they have all fostered his cult of reason, moderation, detachment, sanity. It is this humanism, aristocratic and severe in expression as in feeling but open to the appeal of fantasy and directed toward action, that inspires Calvino's whole work and is here traced from the early novels and short-stories (whose violent realism seemed to imply a specific political commitment), through the central trilogy, I nostri antenati (whose ebullient allegory gives a fairy tale vivacity to the play of ideas and the conflict of moral forces), to the Cosmicomiche and Ti con zero (whose kaleidoscopic projection against the universe of something more and less but not other than man gives cosmic scope to human sensibility). This interpretation of Calvino's fiction is corroborated by a study of this literary criticism and amplified by an analysis of the most significant books and articles dedicated to him by his contemporaries from Pavese to Luti.
Curriculum reform in an Australian medical school : a narrated journey
Creators: name: MacCarrick, Geraldine
Publisher: name: University Of Tasmania
Year: 2023

description: This study investigates curriculum reform in an Australian Medical School which has taken the decision to significantly reform its medical curriculum. The thesis elucidates the lived experience of key members of the curriculum reform team that was established in support of this decision. The study is located in the three year curriculum planning phase leading up to the decision by the external accrediting body to permit the medical school to replace the long standing 6-year traditional program with a shorter better (5-year) integrated and case based medical curriculum. The major premise of this study is that through an understanding of the lived experience of change by medical faculty in a medical school undergoing significant curriculum reform and governance restructure, it will be possible to better appreciate the complexity of change in the medical education setting. The aim is to enhance (and problematise) established theoretical understanding of change management in a medical school using narrative inquiry which permits a more in depth and detailed understanding of curriculum reform in the context of the medical school. Data collected over the three years of the study included the author's personal reflexive journal, interviews with contemporary colleagues on the curriculum reform team, all text data generated by the curriculum planning project over the three years and interviews with former Deans of the same medical school from the school's inception in 1965. A greater awareness of the lived experience of curriculum reform in medical education is particularly relevant as medical schools nationally and internationally seek to adopt best practice in training future doctors. Increased accountability as well as educational and health care developments call for increased sophistication on the part of medical teachers within medical schools who are called upon to continually examine how best to educate future health professionals.
Semi-analytical model of acoustic-wave generation by a laser line pulse in an optically absorptive isotropic cylinder
Creators: name: Segur, D.
name: Shuvalov, A. L.
name: Pan, Y.
name: Audoin, B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Classical Physics (physics.class-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Semi-analytical model for calculating acoustic response to a line-focused laser pulse in an optically absorptive isotropic cylinder is proposed and implemented. It is assumed that the laser input is absorbed over the volume and thus creates a radially distributed thermoelastic source. Closed-form solution is obtained in the Fourier domain. Two inverse Fourier transforms in frequency and circumferential wave number yield the sought waveforms of acoustic response in the time-space domain. Numerical simulation is compared to the calculation based on a surface dipole source. The two signals have essentially different shapes of the wave-arrival peaks when the optical penetration is large enough.
description: 9 pages, 2 figures
Ambulatory Thoracoscopic Pleurodesis Combined With Indwelling Pleural Catheter in Malignant Pleural Effusion
Creators: name: Foo, Chuan T.
name: Pulimood, Thomas
name: Knolle, Martin
name: Marciniak, Stefan J.
name: Herre, Jurgen
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Surgery
neoplasia
outpatient
pleurodesis
pleural effusion
malignant
thoracoscope

description: Background and Objective: Malignant pleural effusion (MPE) often results in debilitating symptoms. Relief of dyspnoea and improvement in quality of life can be achieved with either talc pleurodesis or insertion of an indwelling tunneled pleural catheter (IPC). The former requires a lengthy hospital stay and the latter is associated with lower pleurodesis rates. In response to limited hospital bed capacity, we developed a pragmatic approach in managing MPE by combining thoracoscopic talc poudrage and insertion of IPC into a single day case procedure. We present data on the safety and efficacy of this approach. Methods: Patients who had undergone the abovementioned procedure between 2017 and 2020 were analyzed. Demographic data, hospital length of stay (LOS), histological diagnosis, rates of pleurodesis success and procedural related complications were collated. Patients were followed-up for 6 months. Results: Forty-five patients underwent the procedure. Mean age was 68.5 ± 10.4 years and 56% were male. Histological diagnosis was achieved in all cases. 86.7% of patients were discharged on the day of the procedure. Median LOS was 0 (IQR 0–0) days. Successful pleurodesis was attained in 77.8% at 6-month follow-up. No procedure related deaths or IPC related infections were recorded. Conclusion: Ambulatory thoracoscopic poudrage and IPC insertion is a safe and effective option in the management of MPE. All patients received a definitive pleural intervention with 77.8% pleurodesis success at 6-months and majority of them discharged on the same day. Future randomized trials are required to confirm these findings.
Prospective trial of different antimicrobial treatment durations for presumptive canine urinary tract infections
Creators: name: Allerton, Fergus
name: Pouwels, Koen B.
name: Bazelle, Julien
name: Caddy, Sarah
name: Cauvin, Andria
name: De Risio, Luisa
name: Swann, James
name: Warland, James
name: Kent, Andrew
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Study Protocol
Nephrology and urology
Combatting veterinary antimicrobial resistance (AMR)
Antimicrobial stewardship
Antimicrobial resistance
duration
Urinary tract infection
Canine
Duration-response curve

description: Abstract: Background: Avoidance of unnecessary antimicrobial administration is a key tenet of antimicrobial stewardship; knowing the optimal duration of therapy obviates over-treatment. However, little research has been performed to establish course lengths for common canine infections. In clinical practice, antimicrobial therapy is frequently prescribed in dogs presenting lower urinary tract signs (haematuria, pollakiuria and dysuria/stranguria). The proposed length of treatment in International Consensus guidelines has decreased with each iteration, but these recommendations remain arbitrary and largely extrapolated from experience in people. Methods: The objective of this prospective, multi-centre study is to find the shortest course duration that is non-inferior to the standard duration of 7 days of amoxicillin/clavulanate in terms of clinical outcomes for female dogs with lower urinary tract signs consistent with a urinary tract infection. An electronic data capture platform will be used by participating veterinarians working in clinical practice in the United Kingdom. Eligible dogs must be female, aged between 6 months and 10 years and have lower urinary tract signs of up to seven days’ duration. Enrolment will be offered in cases where the case clinician intends to prescribe antimicrobial therapy. Automatic pseudo-randomisation to treatment group will be based on the day of presentation (Monday-Friday); all antimicrobial courses will be completed on the Sunday after presentation generating different treatment durations. Follow-up data will be collected 1, 8 and 22–26 days after completion of the antimicrobial course to ensure effective safety netting, and to monitor short-term outcome and recurrence rates. Informed owner consent will be obtained in all cases. The study is approved by the Ethical Review Board of the University of Nottingham and has an Animal Test Certificate from the Veterinary Medicine’s Directorate. Discussion: This study has been designed to mirror current standards of clinical management; conclusions should therefore, be widely applicable and guide practising veterinarians in their antimicrobial decision-making process. A duration-response curve will be created allowing determination of the optimal treatment duration for the management of female dogs with lower urinary tract signs. It is hoped that these results will contribute valuable information to improve future antimicrobial stewardship as part of a wider one-health perspective.
Quantum fluctuations in trapped time-dependent Bose-Einstein condensates
Creators: name: Uhlmann, Michael
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Quantum fluctuations in time-dependent, harmonically-trapped Bose-Einstein condensates are studied within Bogoliubov theory. An eigenmode expansion of the linear field operators permits the diagonalization of the Bogoliubov-de Gennes equation for a stationary condensate. When trap frequency or interaction strength are varied, the inhomogeneity of the background gives rise to off-diagonal coupling terms between different modes. This coupling is negligible for low energies, i.e., in the hydrodynamic regime, and an effective space-time metric can be introduced. The influence of the inter-mode coupling will be demonstrated in an example, where I calculate the quasi-particle number for a quasi-one-dimensional Bose-Einstein condensate subject to an exponential sweep of interaction strength and trap frequency.
УПРАВЛЕНИЕ КАЧЕСТВОМ УСЛУГ
Creators: name: ХУНУЗИДИ ЕЛЕНА ИВАНОВНА
name: НУЖДИН ГЕОРГИЙ АНАТОЛЬЕВИЧ
name: МАРЦЕНЮК АЛЕКСАНДРА СЕРГЕЕВНА
name: АНИСИМОВА МАРИНА АЛЕКСАНДРОВНА
name: БОРИСКИН ОЛЕГ ИГОРЕВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: СИСТЕМА УПРАВЛЕНИЯ УСЛУГАМИ
СИСТЕМА МЕНЕДЖМЕНТА КАЧЕСТВА
ИНТЕГРАЦИЯ СИСТЕМ
УСЛУГИ ПАССАЖИРСКОГО АВТОМОБИЛЬНОГО ТРАНСПОРТА
ТАКСОМОТОРНЫЕ ПЕРЕВОЗКИ
SERVICE MANAGEMENT SYSTEM
QUALITY MANAGEMENT SYSTEM
INTEGRATION OF SYSTEMS
PASSENGER ROAD TRANSPORT SERVICES
TAXI TRANSPORT

description: Обсуждены вопросы обеспечения качества и системы управления услугами такси в организациях, осуществляющих деятельность в области перевозки пассажиров легковым такси. Проведен анализ с помощью построения диаграмм Исикавы и Дома качества с последующим сопоставительным анализом деятельности трех организаций в сфере услуг такси. Подтверждена объективная рекомендация по созданию и внедрению системы менеджмента качества с дальнейшей интеграцией ее с системой управления услугами такси и к выработке мер по использованию выявленных достижений и сильных сторон для организационного развития и увеличения доверия клиентов на фоне роста конкурентоспособности.
Source routing and transparent bridging interconnections and their performances
Creators: name: Ilham, Sawa'un
Publisher: name: University Of Tasmania
Year: 2023

description: The interconnection between IEEE 802.5 and IEEE 802.3 LANs is carried out at layer 2 of OSI model or precisely at Medium Access Control level. Since these two LANs have many different characteristics, and are incompatible so that interoperability becomes a problem during their interconnection. IEEE 802.5 LANs use a strategy which is called Source Routing for their interconnection whereas IEEE 802.3 LANs use different strategy which is called Transparent Bridging. To overcome the problem of internetworking of these two different LANs, IEEE proses a new standard for routing strategy which is called Source Routing Transparent (SRT). This thesis studies the problems arising from Source Routing and Transparent bridging interconnections and discuss how SRT address the problems of Source Routing and Transparent Bridging. A mathematical analysis is done to analyze the performance of Source Routing and Transparent Bridging. SIMSCRIPT simulation programs are developed to conform with the mathematical analysis. The results of these two approaches agree with each other. Broadly speaking, the performance of Source Routing is deterministic whereas Transparent Bridging is random due to collision of frames at high utilization.
"New Cybernetics and the Application of its Principles in Physics" and "Comment on "Quantum Solution to the Arrow-of-Time Dilemma" of L. Maccone arXiv:0802.0438"
Creators: name: Kupervasser, Oleg
name: Laikov, Dimitri
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The first paper: We describe principles of new cybernetics and use these principles for resolution of basic physical paradoxes. It demonstrates universality of the principles of new cybernetics. The second paper: recent letter by Maccone presents a solution based on the existing laws of quantum mechanics to the arrow-of-time dilemma. He argues that all phenomena in which the entropy decreases must not leave any information (in the observer's memory) of their having occurred because the observer is a part of the whole system. Maccone concludes that quantum mechanics is necessary to his argument, which he believes does not otherwise work in classical mechanics. This Comment consists of four parts. We discuss the basic problems in the first part. This Comment and the previously published Comment by Jennings and Rudolph describes flaws in Maccone's arguments. However, the main argument (erasure of the observer's memory), which was previously formulated in our work and was repeated by Maccone, is correct under the conditions described in this Comment. Moreover, this argument can be used to resolve a reduction paradox (the Schrodinger's Cat paradox) in quantum mechanics. This use is demonstrated in the second part. In the third part, the synchronisation (decoherence) of time arrows is discussed. In the fourth part, the synchronisation (decoherence) of time arrows in quantum gravity is considered.
description: 16 page. The document consists of two similar papers. The first part of the second paper are written by Oleg Kupervasser and Dimitri Laikov. The rest of the papers are written by Oleg Kupervasser only. arXiv admin note: substantial text overlap with arXiv:0911.2076
The Aligned two-Higgs Doublet model
Creators: name: Pich, Antonio
name: Tuzon, Paula
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the two-Higgs-Doublet model the alignment of the Yukawa flavour matrices of the two scalar doublets guarantees the absence of tree-level flavour-changing neutral couplings. The resulting fermion-scalar interactions are parameterized in terms of three complex parameters, leading to a generic Yukawa structure which contains as particular cases all known specific implementations of the model based on Z2 symmetries. These three complex parameters are potential new sources of CP violation.
description: 7 pages
Additional file 1 of Synthesis of isobutanol using acetate as sole carbon source in Escherichia coli
Creators: name: Gu, Pengfei
name: Zhao, Shuo
name: Niu, Hao
name: Li, Chengwei
name: Jiang, Shuixing
name: Zhou, Hao
name: Li, Qiang
Publisher: name: figshare
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Supplementary Material 1
Optimal Tableau Decision Procedures for PDL
Creators: name: Nguyen, Linh Anh
name: Szałas, Andrzej
Publisher: name: arXiv
Year: 2009
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: We reformulate Pratt's tableau decision procedure of checking satisfiability of a set of formulas in PDL. Our formulation is simpler and more direct for implementation. Extending the method we give the first EXPTIME (optimal) tableau decision procedure not based on transformation for checking consistency of an ABox w.r.t. a TBox in PDL (here, PDL is treated as a description logic). We also prove the new result that the data complexity of the instance checking problem in PDL is coNP-complete.
Holographic Cosmology from the First Law of Thermodynamics and the Generalized Uncertainty Principle
Creators: name: Lidsey, James E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The cosmological Friedmann equation sourced by the trace anomaly of a conformal field theory that is dual to the five-dimensional Schwarzschild-AdS geometry can be derived from the first law of thermodynamics if the apparent horizon of the boundary spacetime acquires a logarithmically-corrected Bekenstein-Hawking entropy. It is shown that such a correction to the entropy can arise when the generalized uncertainty principle (GUP) is invoked. The necessary condition for such a thermodynamic derivation directly relates the GUP parameter to the conformal anomaly. It is consistent with the existence of a gravitational cutoff for a theory containing $n$ light species. The absolute minimum in position uncertainty can be identified with the scale at which gravity becomes effectively five-dimensional.
description: Extended discussion post-Planck results; In press, Physical Review D
PLC controlled cascaded water tank system
Creators: name: Mendoza, CS
Publisher: name: University Of Tasmania
Year: 2023

description: This project demonstrates the extensive application of the Siemens S5-95U Programmable Logic Controller. It utilises almost all the features of a good programmable controller now available in the market. The PLC's most notable feature, the handling of analog input and output data is actually the main feature of this project. The water tank system is composed of 3 tank systems connected in cascade series. Tank 1 is used for cold water storage, and tank 2 is the one used in the process. An interface module was created that displays the system different parameters. These are the tank's temperature and level. The interface is a stand-alone module which only requires power and the systems inputs. The module displays the system's current reading through an LED bar graph. The system setpoints can all be adjusted on the module. The controller generates a digital control bit depending on the desired system operation. This programmable controller and interface module work in conjunction with the existing water tank system found in the control laboratory.
ПОВЕДЕНИЕ УПРУГОГО СЛОЯ ИЗ МАТЕРИАЛА МУНИ-РИВЛИНА МЕЖДУ ДВУМЯ ЖЕСТКИМИ КОАКСИАЛЬНЫМИ ЦИЛИНДРАМИ
Creators: name: КУДРЯШОВ МИХАИЛ АЛЕКСАНДРОВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: УПРУГОСТЬ
МАТЕРИАЛ МУНИ
КОАКСИАЛЬНЫЕ ЦИЛИНДРЫ
СДВИГ
ELASTICITY
MOONEY MATERIAL
COAXIAL CYLINDERS
SHEAR

description: Рассмотрена задача о вращении жестких коаксиальных цилиндров с упругим промежуточным слоем из материала Муни-Ривлина в частном случае статического нагружения.
UV and EUV Instruments
Creators: name: Werner, K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We describe telescopes and instruments that were developed and used for astronomical research in the ultraviolet (UV) and extreme ultraviolet (EUV) regions of the electromagnetic spectrum. The wavelength ranges covered by these bands are not uniquely defined. We use the following convention here: The EUV and UV span the regions ~100-912 and 912-3000 Angstroem respectively. The limitation between both ranges is a natural choice, because the hydrogen Lyman absorption edge is located at 912 Angstroem. At smaller wavelengths, astronomical sources are strongly absorbed by the interstellar medium. It also marks a technical limit, because telescopes and instruments are of different design. In the EUV range, the technology is strongly related to that utilized in X-ray astronomy, while in the UV range the instruments in many cases have their roots in optical astronomy. We will, therefore, describe the UV and EUV instruments in appropriate conciseness and refer to the respective chapters of this volume for more technical details.
description: To appear in: Landolt-Boernstein, New Series VI/4A, Astronomy, Astrophysics, and Cosmology; Instruments and Methods, ed. J.E. Truemper, Springer-Verlag, Berlin, 2010
Additional file 9 of MRE11:p.K464R mutation mediates olaparib resistance by enhancing DNA damage repair in HGSOC
Creators: name: Zhuang, Xucui
name: Xiao, Rourou
name: Fu, Yu
name: Yang, Bin
name: Fan, Junpeng
name: Lu, Funian
name: Qin, Tianyu
name: Yang, Xiaohang
name: Hu, Xingyuan
name: Yin, Jingjing
name: Li, Wenting
name: Kang, Xiaoyan
name: Chen, Gang
name: Hu, Dianxing
name: Sun, Chaoyang
Publisher: name: figshare
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Cancer
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: Supplementary Material 9
Application of ISDN D channel for teleaction teleservices
Creators: name: Hegde, S
Publisher: name: University Of Tasmania
Year: 2023

description: INTRODUCTION 1.1 Objectives and motivation Teleaction Teleservice applications on ISDN are just emerging as commercial products. The main objective of this project is to study the standards, design and performance of Electronic Fund Transfer application on ISDN D channel. System design includes the description of system elements. Delay performance of ISDN D channel is investigated using SIMSCRIF'T 11.5 simulation language. In comparison to the high speed, multi-media topics prevalent in today's communications business, teleaction teleservices are not glamorous. They operate at low data speeds and may not spin off new technologies. How ever they also have attractive features. They meet existing customer needs, they are relatively easy to deliver and new market opportunities exist for them. They can provide near term revenues for communications providers, near term market growth for service providers and wide variety of new, useful services for end users. The success of teleaction services could be a key to the future growth of the communications industry.
МАТЕМАТИЧЕСКАЯ МОДЕЛЬ ПРОИЗВОДИТЕЛЬНОСТИ ВЕРТИКАЛЬНОГО БУНКЕРНОГО ЗАГРУЗОЧНОГО УСТРОЙСТВА С РОЛИКАМИ ДЛЯ СТУПЕНЧАТЫХ ТРЕХСОСТАВНЫХ КОЛПАЧКОВ ТИПА PUSH-PULL
Creators: name: ПАНТЮХИНА ЕЛЕНА ВИКТОРОВНА
name: ПУЗИКОВ ИВАН ВАЛЕРЬЕВИЧ
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: АВТОМАТИЧЕСКАЯ ЗАГРУЗКА
БУНКЕРНОЕ ЗАГРУЗОЧНОЕ УСТРОЙСТВО
СТУПЕНЧАТЫЙ КОЛПАЧОК ДЛЯ ПОЛИМЕРНОЙ ТАРЫ
МАТЕМАТИЧЕСКАЯ МОДЕЛЬ ПРОИЗВОДИТЕЛЬНОСТИ
AUTOMATIC FEEDING
HOPPER-FEEDING DEVICE
STEP CAP FOR POLYMER CONTAINERS
MATHEMATICAL MODEL OF FEED RATE

description: Рассмотрена разработанная на базе комплексного подхода математическая модель производительности механического дискового вертикального бункерного загрузочного устройства с роликами для ступенчатых трехсоставных колпачков типа push-pull, учитывающая влияние на производительность устройства его параметров и параметров колпачка.
РАЗРАБОТКА ПРОГРАММНОГО ОБЕСПЕЧЕНИЯ ДЛЯ РАСЧЕТА ФАКТИЧЕСКОЙ ПРОИЗВОДИТЕЛЬНОСТИ БУНКЕРНЫХ ЗАГРУЗОЧНЫХ УСТРОЙСТВ ДЛЯ ДЕТАЛЕЙ С НЕЯВНО ВЫРАЖЕННОЙ АСИММЕТРИЕЙ ТОРЦОВ
Creators: name: ПАНТЮХИНА ЕЛЕНА ВИКТОРОВНА
Publisher: name: Известия Тульского государственного университета. Технические науки
Year: 2020
Subjects: АВТОМАТИЧЕСКАЯ ЗАГРУЗКА
БУНКЕРНОЕ ЗАГРУЗОЧНОЕ УСТРОЙСТВО
ДЕТАЛИ С НЕЯВНОЙ АСИММЕТРИЕЙ
ПРОГРАММА РАСЧЕТА ПРОИЗВОДИТЕЛЬНОСТИ
AUTOMATIC FEEDING
HOPPER-FEEDING DEVICE
PARTS WITH IMPLICIT ASYMMETRY
FEED RATE CALCULATION PROGRAM

description: Рассмотрены разработанные программы для расчета фактической производительности механических дисковых бункерных загрузочных устройств для полых и сплошных осесимметричных деталей формы тел вращения с неявно выраженной асимметрией торцов.
The pair potential of colloidal stars
Creators: name: Huang, F.
name: Addas, K.
name: Ward, A.
name: Flynn, N. T.
name: Velasco, E.
name: Hagan, M. F.
name: Dogic, Z.
name: Fraden, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report on the construction of colloidal stars: 1 micrometer polystyrene beads grafted with a dense brush of 1 micrometer long and 10 nm wide semi-flexible filamentous viruses. The pair interaction potentials of colloidal stars are measured using an experimental implementation of umbrella sampling, a technique originally developed in computer simulations in order to probe rare events. The influence of ionic strength and grafting density on the interaction is measured. Good agreements are found between the measured interactions and theoretical predictions based upon the osmotic pressure of counterions.
description: 5 pages, 3 figures. Changed content
Preparation of CuAlTe2 Thin Films by Auto-Combustion
Creators: name: Linda. SAAD-HAMIDECHE
name: Ouafa. TOBBI
name: Hayette. BENZEROUK
name: Fairouz. CHOUIT
Publisher: name: Zenodo
Year: 2024
Subjects: CuAlTe2, SHS, Thin Films, Structural Properties, Optical Properties, Band Gap.

description: Abstract

CuAlTe2 films have been fabricated using a novel technique called auto combustion or self-propagating high-temperature synthesis (SHS) through thermal evaporation. This process involved depositing the films onto a mixture of Cu, Al, and Te powder that was cold-pressed. The as-grown films exhibited a chalcopyrite structure with a preferred orientation along the (112) direction, and their lattice constants were determined to be: a=6.058 Å and c=11.98 Å. SEM analysis revealed that the resulting thin films had a nano-structured morphology. Additionally, a direct band-gap value of 2.08 eV was observed.
Fracture toughness and fatigue behaviour of materials : a review
Creators: name: Jamal, A
Publisher: name: University Of Tasmania
Year: 2023

description: This review will investigate fracture toughness and fatigue behaviour of materials, and also study of different parameters which have comprehensive effects on the fracture in both alloys and metals. These factors including temperature, stress, air and other environmental factors. It has found out that fatigue crack growth is a fertile area in order to do more tests on this topic. The efforts will be concentrated on investigation of the effects of temperature on fatigue and fatigue crack growth analysis in different conditions. A large number of work has been done, particularly during the last 40 years, to study the related of high temperature low cycle fatigue data with difference factors. This work has manifested itself with the establishment of no less than 31 various correlation factors. These factors attempt, in varying ways, to predict the influences of temperature, strain rate, wave shape, and other factors upon the fatigue lives of difference materials. All of these factors create a big problem for the designer when trying to decide how to best design a component or structure, and what material to use.
Harmonic maps on amenable groups and a diffusive lower bound for random walks
Creators: name: Lee, James R.
name: Peres, Yuval
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: We prove diffusive lower bounds on the rate of escape of the random walk on infinite transitive graphs. Similar estimates hold for finite graphs, up to the relaxation time of the walk. Our approach uses nonconstant equivariant harmonic mappings taking values in a Hilbert space. For the special case of discrete, amenable groups, we present a more explicit proof of the Mok-Korevaar-Schoen theorem on the existence of such harmonic maps by constructing them from the heat flow on a Følner set.
description: Published in at http://dx.doi.org/10.1214/12-AOP779 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Proper Versus Improper Mixtures: Towards a Quaternionic Quantum Mechanics
Creators: name: Masillo, Fabio
name: Scolarici, Giuseppe
name: Sozzo, Sandro
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The density operators obtained by taking partial traces do not represent proper mixtures of the subsystems of a compound physical system, but improper mixtures, since the coefficients in the convex sums expressing them never bear the ignorance interpretation. As a consequence, assigning states to these subsystems is problematical in standard quantum mechanics (subentity problem). Basing on the proposal provided in the SR interpretation of quantum mechanics, where improper mixtures are considered as true nonpure states conceptually distinct from proper mixtures, we show here that proper and improper mixtures can be represented by different density operators in the quaternionic formulation of quantum mechanics, hence they can be distinguished also from a mathematical viewpoint. A simple example related to the quantum theory of measurement is provided.
description: 10 pages, standard latex, accepted for publication in Theoretical and Mathematical Physics
Distinguishing quantum channels via magic squares game
Creators: name: Ramzan, M.
name: Khan, M. K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the effect of quantum memory in magic squares game when played in quantum domain. We consider different noisy quantum channels and analyze their influence on the magic squares quantum pseudo-telepathy game. We show that the probability of success can be used to distinguish the quantum channels. It is seen that the mean success probability decreases with increase of quantum noise. Where as the mean success probability increases with increase of quantum memory. It is also seen that the behaviour of amplitude damping and phase damping channels is similar. On the other hand, the behaviour of depolarizing channel is similar to the flipping channels. Therefore, the probability of success of the game can be used to distinguish the quantum channels.
description: 23 pages, 8 .eps figures, 3 tables
Diversity patterns of nonmammalian cynodonts (Synapsida, Therapsida) and the impact of taxonomic practice and research history on diversity estimates
Creators: name: Lukic-Walther, Marcus
name: Brocklehurst, Neil
name: Kammerer, Christian
name: Fröbisch, Jörg
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: 570 Biowissenschaften; Biologie

description: Nonmammalian cynodonts represent a speciose and ecologically diverse group with a fossil record stretching from the late Permian until the Cretaceous. Because of their role as major components of Triassic terrestrial ecosystems and as the direct ancestors of mammals, cynodonts are an important group for understanding Mesozoic tetrapod diversity. We examine patterns of nonmammalian cynodont species richness and the quality of their fossil record. A supertree of cynodonts is constructed from recently published trees and time calibrated using a Bayesian approach. While this approach pushes the root of Cynodontia back to the earliest Guadalupian, the origins of Cynognathia and Probainognathia are close to their first appearance in the fossil record. Taxic, subsampled, and phylogenetic diversity estimates support a major cynodont radiation following the end-Permian mass extinction, but conflicting signals are observed at the end of the Triassic. The taxic diversity estimate shows high diversity in the Rhaetian and a drop across the Triassic/Jurassic boundary, while the phylogenetic diversity indicates an earlier extinction between the Norian and Rhaetian. The difference is attributed to the prevalence of taxa based solely on teeth in the Rhaetian, which are not included in the phylogenetic diversity estimate. Examining the completeness of cynodont specimens through geological time does not support a decrease in preservation potential; although the median completeness score decreases in the Late Triassic, the range of values remains consistent. Instead, the poor completeness scores are attributed to a shift in sampling and taxonomic practices: an increased prevalence in microvertebrate sampling and the naming of fragmentary material.
Cosmic Rays from the Knee to the Highest Energies
Creators: name: Bluemer, J.
name: Engel, R.
name: Hoerandel, J. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: This review summarizes recent developments in the understanding of high-energy cosmic rays. It focuses on galactic and presumably extragalactic particles in the energy range from the knee (10^15 eV) up to the highest energies observed (>10^20 eV). Emphasis is put on observational results, their interpretation, and the global picture of cosmic rays that has emerged during the last decade.
description: Invited review, submitted to Progress in Particle and Nuclear Physics
Experimental investigation of nonlinear coupled vibrations of columns
Creators: name: Johnson, Dale P.
Publisher: name: University of British Columbia
Year: 2011

description: Coupling of the flexural, longitudinal, and torsional vibration modes of a column subjected to periodic axial loading was analytically and experimentally investigated. The initial crookedness of the column and longitudinal inertia give rise to coupled flexural-longitudinal vibrations. Further, the Weber effect and longitudinal inertia result in coupling between longitudinal and torsional oscillations. To assess the validity of the theory, an experimental apparatus was set up to axially excite a column using a vibration control generator and an electromagnetic shaker. The experimental results were in good agreement with the theoretical predictions. Coupled longitudinal vibrations exhibiting a frequency ratio of 1:2 were observed. Coupled flexural oscillations were also observed, though a frequency ratio was not established. Further, the experimental results suggest that coupled vibrations other than those theoretically expected were present. In particular, a longitudinal coupled vibration with a frequency ratio of 1:3 was observed, and a corresponding coupled flexural oscillation was present. A coupled torsional mode was experimentally observed when the applied frequency was twice the fundamental torsional frequency. A second coupled torsional mode appeared when the excitation frequency was three times the fundamental torsional frequency. The phase relationship between the coupled vibrations was observed. The resonant coupled vibrations were found to be significant at certain frequencies.
T-duality of curvature terms in D-brane actions
Creators: name: Garousi, Mohammad R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine the known curvature terms in the DBI part of the D-brane action under the T-duality transformation. Using the compatibility of the action with the standard rules of T-duality at the linear order as a guiding principle, we include the appropriate NS-NS $B$-field terms in the action and show that they reproduce the O(α'^2) terms of the corresponding disk-level scattering amplitude.
description: 14 pages, no figure; v4: minor corrections in section 2, the result does not change
A case study of teachers' and principals' perceptions of school leadership
Creators: name: Latham, DDJ
Publisher: name: University Of Tasmania
Year: 2023

description: Leadership is recognised as a significant characteristic influencing school effectiveness. The recent devolution of decision-making responsibility from centralised authorities to local school-based management has resulted in changes in leadership provision in schools. Consequently, school restructuring has created new expectations of those who are in leadership positions to rethink the leadership paradigm, to develop effective and purposeful leadership, and to promote learning communities based on collaborative and collegial models. As New Zealand has experienced fourteen years of SBM, useful insights could be gained regarding the way that teachers and principals perceive school leadership. The purpose of this study was to investigate how teachers and principals, in one school district in New Zealand, perceived school leadership (deputy principal, assistant principal, senior teacher/management unit holder) in terms of leadership style and leadership management strategies. As well, the study considered the characteristics of leadership that teachers and principals considered as important and being given emphasis in their school. An examination was also made of how teachers perceived their engagement in school decision-making and whether their perceptions are influenced by other factors. A case study method was selected involving a survey of teachers and a survey of principals, semi-structured follow up interviews of teachers, semi-structured interviews of senior teachers and a document analysis relating to school management strategies. Results of the study show that the majority of teachers perceive their school leadership to exhibit characteristics of transformational leadership, and that school decision-making is characterised by collaborative and cooperative processes.
Vector-Field Domain Walls
Creators: name: Chkareuli, J. L.
name: Kobakhidze, Archil
name: Volkas, Raymond R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We argue that spontaneous Lorentz violation may generally lead to metastable domain walls related to the simultaneous violation of some accompanying discrete symmetries. Remarkably, such domain wall solutions exist for space-like Lorentz violation and do not exist for the time-like violation. Because a preferred space direction is spontaneously induced, these domain walls have no planar symmetry and produce a peculiar static gravitational field at small distances, while their long-distance gravity appears the same as for regular scalar-field walls. Some possible applications of vector-field domain walls are briefly discussed.
description: Published version, to appear in Physical Review D
Establishing Guidelines for Program Evaluation for Community Health Initiatives
Creators: name: Grant, KS
Publisher: name: Zenodo
Year: 2023
Subjects: Program Evaluation

description: Introduction: A community Program in Harlem created an assessment project to measure the impact of their community engagement efforts and procedures they have implemented. A suitable program evaluation is needed to review the internal processes of the initiative. The success of the assessment project will influence future work within the initiative.

 

Objectives:  Successful community engagement involves preparation, training, and evaluation. The aim of this systematic literature review is to recommend the most beneficial program evaluation method for measuring engagement in community health initiatives.

 

Methods:  Relevant articles were accessed through scholarly articles and databases, JSTOR, Google Scholar and Gale Research and appropriate keywords were queried. The reporting of this systematic review was guided by the standards of the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) Statement.

 

Results:  The systematic review found several approaches useful for the program evaluation for a community health initiative. Among the relevant program evaluation methods are The Logic Model, RE-AIM framework, SMART criteria, Practical participation approach, concept mapping, The Community Engagement Toolkit, EQUIHP and SCORE. Based on the review these evaluations have the most beneficial methods to evaluate a community engagement program.

 

Conclusion:  The recommendation is that Community Engagement programs use a mixed approach to evaluate the programs that they establish for underserved communities.

 

Keywords: program evaluation, community program assessment, program evaluation measurement, evaluating health promotion, culturally responsive evaluation, program evaluation methods.
Negative refractive index due to chirality
Creators: name: Zhou, Jiangfeng
name: Dong, Jianfeng
name: Koschny, Thomas
name: Kafesaki, Maria
name: Soukoulis, Costas M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate experimentally and numerically that metamaterials based on bilayer cross wires give giant optical activity, circular dichroism, and negative refractive index. The presented chiral design offers a much simpler geometry and more efficient way to realize negative refractive index at any frequency. We also developed a retrieval procedure for chiral materials which works successfully for circularly polarized waves.
Surface magnetic states of Ni nanochains modified by using different organic surfactants
Creators: name: Chen, Weimeng
name: Zhou, Wei
name: He, Lin
name: Chen, Chinping
name: Guo, Lin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Three powder samples of Ni nanochains formed of polycrystalline Ni nanoparticles with an estimated diameter of about 30 nm have been synthesized by a wet chemical method using different organic surfactants. These samples, having magnetically/structurally core-shell structures, all with a ferromagnetic Ni core, are Ni@Ni3C nanochains, Ni@NiSG nanochains with a spin glass (SG) surface layer, and Ni@NiNM nanochains with a nonmagnetic (NM) surface layer. The average thickness of the shell for these three samples is determined as about 2 nm. Magnetic properties tailored by the different surface magnetism are studied. In particular, suppression in saturation magnetization usually observed with magnetic nanoparticles is revealed to arise from the surface magnetic states with the present samples.
description: 23 pages, 6 figures included
Detecting h_c(^1P_1) at the LHC
Creators: name: Qiao, Cong-Feng
name: Ren, De-Long
name: Sun, Peng
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we calculate the $h_c(^1P_1)$ production rate at the LHC to leading order of the strong coupling constant, for both color-singlet and -octet mechanisms. Numerical results show that a considerable number of $h_c$ events with moderate transverse momentum $p_T$ will be produced in the early run of the LHC, which will supply a good opportunity to further study the nature of this P-wave spin-singlet charmonium state.
description: 9 pages, 3 figures the version to appear in PLB cheers
Physical Properties of Main-Belt Comet P/2005 U1 (Read)
Creators: name: Hsieh, Henry H.
name: Jewitt, David
name: Ishiguro, Masateru
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The main-belt comets occupy dynamically asteroidal orbits in the main asteroid belt. Here we present physical observations of the second-known member of this population, P/2005 U1 (Read), which showed vigorous cometary activity from 2005 October 24 to 2005 December 27. Monte Carlo numerical simulations of P/Read's dust emission indicate that the coma and tail are optically dominated by dust particles larger than 10 microns in size with terminal ejection velocities of 0.2 to 3 m/s. We estimate P/Read's mass loss rate during this period to be approximately 0.2 kg/s, roughly an order of magnitude larger than that calculated for 133P/Elst-Pizarro. We also find that emission likely began at least two months prior to P/Read's discovery, though we note this is a lower limit and that earlier start times are possible. Optical colors measured for P/Read while it was active are approximately solar (B-V=0.63+/-0.05, V-R=0.37+/-0.04, R-I=0.39+/-0.04) but are likely to be dominated by coma particles. Observations of P/Read in 2007 when it appears largely inactive show an extremely small nucleus with an absolute magnitude of H_R~20.1+/-0.4, corresponding to an effective radius of r~0.3 km. P/Read's activity is consistent with sublimation-driven dust emission and inconsistent with dust emission due to an impact, though the unusual strength of the 2005 outburst suggests the possibility that it could have been due to the sublimation of a freshly-exposed reservoir of volatile material.
description: 27 pages, 8 figures, accepted for publication in AJ
Arithmetic theory of harmonic numbers (II)
Creators: name: Sun, Zhi-Wei
name: Zhao, Li-Lu
Publisher: name: arXiv
Year: 2009
Subjects: subject: Number Theory (math.NT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 11A07, 11B68, 05A19, 11B75

description: For $k=1,2,\ldots$ let $H_k$ denote the harmonic number $\sum_{j=1}^k 1/j$. In this paper we establish some new congruences involving harmonic numbers. For example, we show that for any prime $p>3$ we have $$\sum_{k=1}^{p-1}\frac{H_k}{k2^k}\equiv\frac7{24}pB_{p-3}\pmod{p^2},\ \ \sum_{k=1}^{p-1}\frac{H_{k,2}}{k2^k}\equiv-\frac 38B_{p-3}\pmod{p},$$ and $$\sum_{k=1}^{p-1}\frac{H_{k,2n}^2}{k^{2n}}\equiv\frac{\binom{6n+1}{2n-1}+n}{6n+1}pB_{p-1-6n}\pmod{p^2}$$ for any positive integer $n
description: 13 pages. Final published version
Drying Patterns: Sensitivity to Residual Stresses
Creators: name: Cohen, Yossi
name: Mathiesen, Joachim
name: Procaccia, Itamar
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Volume alteration in solid materials is a common cause of material failure. Here we investigate the crack formation in thin elastic layers attached to a substrate. We show that small variations in the volume contraction and substrate restraint can produce widely different crack patterns ranging from spirals to complex hierarchical networks. The networks are formed when there is no prevailing gradient in material contraction whereas spirals are formed in the presence of a radial gradient in the contraction of a thin elastic layer.
description: 4 pages, 4 figures