cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Action Principle and Algebraic Approach to Gauge Transformations in Gauge Theories
Creators: name: Manoukian, Edouard B.
name: Siranan, Suppiya
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The action principle is used to derive, by an entirely algebraic approach, gauge transformations of the full vacuum-to-vacuum transition amplitude (generating functional) from the Coulomb gauge to arbitrary covariant gauges and in turn to the celebrated Fock-Schwinger (FS) gauge for the abelian (QED) gauge theory without recourse to path integrals or to commutation rules and without making use of delta functionals. The interest in the FS gauge, in particular, is that it leads to Faddeev-Popov ghosts-free non-abelian gauge theories. This method is expected to be applicable to non-abelian gauge theories including supersymmetric ones.
description: LaTeX, 12 pages, Corrected typos
Bulk dominated fermion emission on a Schwarzschild background
Creators: name: Cho, H. T.
name: Cornell, A. S.
name: Doukas, Jason
name: Naylor, Wade
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the WKBJ approximation, and the Unruh method, we obtain semi-analytic expressions for the absorption probability (in all energy regimes) for Dirac fermions on a higher dimensional Schwarzschild background. We present an analytic expression relating the absorption probability to the absorption cross-section, and then use these results to plot the emission rates to third order in the WKBJ approximation. The set-up we use is sufficiently general such that it could also easily be applied to any spherically symmetric background in $d$-dimensions. Our results lead to the interesting conclusion that for $d>5$ bulk fermion emission dominates brane localised emission. This is an example contrary to the conjecture that black holes radiate mainly on the brane.
description: 13 pages, 3 figures
ASPECTS AND FORMATION OF SOCIOLINGUISTIC COMPETENCE OF STUDENTS IN TEACHING ENGLISH LANGUAGE
Creators: name: Kurbanova, Nafisa
Publisher: name: Zenodo
Year: 2023

description: The article is devoted to the influence of sociolinguistics on the process of teaching a foreign language. This work describes how important it is to take into account social and cultural factors in language teaching: it is necessary to take into account the social background of the country of the language being studied, integrating the social context and corresponding situations into teaching.
The Outlook and Possible Developments in the European Community
Creators: name: Larsen, Arne
Publisher: name: Unknown
Year: 1991
Subjects: Community/Rural/Urban Development

description: The savings carried out in agricultural support by sheer political necessity in many industrialized countries in recent years should provide a favourable setting for the international trade negotiations in agriculture. However, the task of putting offers on the table has in many cases been an agonizing one. This was the case for the EC. Although the EC in the last few years - for budgetary reasons - has been cutting in agricultural support and undoubtedly will have to do so also in the future, the EC offer to the international negotiations is considered insufficient by some of the other negotiating parties. However, the strain put on international agricultural trade and national budgets by agricultural support together with the necessity for market access for Eastern Europe will have to be resolved one way or another.
description: Eighth International Farm Management Congress, New Zealand, 4-9 February 1991
Variation of mass in primordial nucleosynthesis as a test of Induced Matter Brane Gravity
Creators: name: Jalalzadeh, S.
name: Yazdani, A. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The variation of mass in induced matter theory using Ceroch-Stewart-Walter perturbations of submanifolds [1] is redefined. It is shown that the deviation of primordial Helium production due to a variation on the difference between the rest mass of the nucleus is in agrement with induced matter brane gravity.
description: 11 pages, to appear in PLB
"A Development Project in Colombia" Its Organisation, Progress and Future Prospects
Creators: name: Jimenez, Francisco
Publisher: name: Unknown
Year: 1991
Subjects: Community/Rural/Urban Development

description: This is a project of agricultural development for the Colombian coffee-growing zone, designed for diversification. The Colombian economy is highly dependent on coffee which represents 38% of exports and 20% of GDP. Five-year diversification plans are being implemented in order to decrease that dependence, increase the coffee growers’ income, create stable employment, increase food production and generate exports. The VI Five-Year Plan started in 1990, It is intended to generate agricultural and livestock production on 327.357 hectares. Its cost is estimated at US$642.3 million. Farm Management is an aid to the establishment and evaluation of the Plan. Its purpose is also to give training to technicians and growers in aspects of management, business administration and the profitability in agriculture.
description: Eighth International Farm Management Congress, New Zealand, 4-9 February 1991
A deep convolutional neural network for classification of Aedes albopictus mosquitoes
Creators: name: Adhane, Gereziher
name: Dehshibi, Mohammad Mahdi
name: Masip, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Monitoring the spread of disease-carrying mosquitoes is a first and necessary step to control severe diseases such as dengue, chikungunya, Zika or yellow fever. Previous citizen science projects have been able to obtain large image datasets with linked geo-tracking information. As the number of international collaborators grows, the manual annotation by expert entomologists of the large amount of data gathered by these users becomes too time demanding and unscalable, posing a strong need for automated classification of mosquito species from images. We introduce the application of two Deep Convolutional Neural Networks in a comparative study to automate this classification task. We use the transfer learning principle to train two state-of-the-art architectures on the data provided by the Mosquito Alert project, obtaining testing accuracy of 94%. In addition, we applied explainable models based on the Grad-CAM algorithm to visualise the most discriminant regions of the classified images, which coincide with the white band stripes located at the legs, abdomen, and thorax of mosquitoes of the Aedes albopictus species. The model allows us to further analyse the classification errors. Visual Grad-CAM models show that they are linked to poor acquisition conditions and strong image occlusions.
Climate, Topography and Soils of New Zealand
Creators: name: Whitty, Bevan S.
Publisher: name: Unknown
Year: 1991
Subjects: Environmental Economics and Policy

description: New Zealand is a windy country with a clear atmosphere. Situated in the midst of a vast ocean and far removed from other large land masses, New Zealand has a maritime-temperate climate with rapid weather changes, frequent though not excessive rain, a small temperature range from winter to summer and plenty of sunshine. New Zealand's 268,000 square kilometres are mountainous, the main range running north-east to south-west with parallel smaller ranges. Plains occupy the eastern part of both large islands. The country is long, 1930 kilometres, and narrow, 400 kilometres at its widest part, and nowhere is more than 130 kilometres from the sea. The land lies between latitudes 34 degrees and 47 degrees south. There is considerable variability in New Zealand soils. These range from older soils in the South Island formed as a result of glacial activity to the more recent widespread North Island soils of volcanic origin. Generally they are thin, relatively immature and well drained and apart from small areas are naturally infertile. However, as a result of the climate and available technology very successful systems of pastoral production have been evolved on which the development of the nation has been built.
description: Eighth International Farm Management Congress, New Zealand, 4-9 February 1991
Augmented Reality in Orthopedic surgery: state of the art and future prospectives
Creators: name: Compagnoni, Riccardo
name: Coccioli, Gianluca
name: Calanna, Filippo
name: Ferrua, Paolo
name: Randelli, Pietro
Publisher: name: Archives of Medicine & Surgery University of Milan
Year: 2021

description: Purpose Quality and results of orthopedic surgery have been vastly improved by the technological advances of these last few years. Progress in surgical instruments and implants have aimed at the improvement of the surgical outcome. More recently, computer assisted surgery (CAS) has revolutionized our approach to surgery in a more comprehensive way, in an attempt to make surgery better not only for the patient but also for the operator and the whole surgical team. Of the many parts that constitutes CAS, augmented reality is one of the most promising ones. This narrative review describes current knowledge and prospects of augmented reality in orthopedic surgery. Methods A narrative review of current literature has been performed in September 2020 to find articles focused on augmented reality in orthopedic surgery in Scopus and PubMed/Medline with the following keywords: (augmented reality) AND (orthopedic). Inclusion criteria were articles published in the last 20 years, reviews, clinical and educational articles. The authors collected the data described in these articles and analyzed them to find the most relevant informations on this topic. Results 145 articles on augmented reality in surgery were found. The majority of these studies were focused on the potential use of this technology for improvements in surgical training, technique, operating time and x-rays exposures. Conclusion Augmented reality is a significant help for the practice and training of the orthopedic surgeon: it can reduce the operating time, the exposure to harmful radiation and can help improve precision and reproducibility of surgeries.
description: Archives of Medicine & Surgery University of Milan, Vol 1 No 1 (2020)
Entropy production in temperature modulated differential scanning calorimetry
Creators: name: Garden, Jean-Luc
name: Richard, Jacques
name: Saruyama, Yasuo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The non-equilibrium process due to irreversible heat exchanges occurring during a temperature modulated differential scanning calorimetry experiment is investigated in detail. This enables us to define an experimental frequency dependent complex heat capacity from this calorimetric method. The physical meaning of this dynamic heat capacity is discussed. A relationship is clearly established between the imaginary part of this complex quantity and the net entropy created during the experimental time-scale.
New Zealand Sheep and Beef Industry
Creators: name: Davison, Rob
Publisher: name: Unknown
Year: 1991
Subjects: Livestock Production/Industries

description: The main features of the New Zealand Sheep and Beef Industry are:
Profits and production are driven by world prices.
The majority of sheep and beef production is exported.
Sheep and beef production are closely integrated.
Sheep and beef cattle graze pasture year round.
Stock are finished to prime condition on pasture for slaughter.
Dual purpose sheep produce both meat and wool.
Production systems are aimed at minimising risk and maximising profit through low cost per unit of output.
description: Eighth International Farm Management Congress, New Zealand, 4-9 February 1991
MHFC: Multi-Head Feature Collaboration for Few-Shot Learning
Creators: name: Shao, Shuai
name: Xing, Lei
name: Wang, Yan
name: Xu, Rui
name: Zhao, Chunyan
name: Wang, Yan-Jiang
name: Liu, Bao-Di
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Few-shot learning (FSL) aims to address the data-scarce problem. A standard FSL framework is composed of two components: (1) Pre-train. Employ the base data to generate a CNN-based feature extraction model (FEM). (2) Meta-test. Apply the trained FEM to acquire the novel data's features and recognize them. FSL relies heavily on the design of the FEM. However, various FEMs have distinct emphases. For example, several may focus more attention on the contour information, whereas others may lay particular emphasis on the texture information. The single-head feature is only a one-sided representation of the sample. Besides the negative influence of cross-domain (e.g., the trained FEM can not adapt to the novel class flawlessly), the distribution of novel data may have a certain degree of deviation compared with the ground truth distribution, which is dubbed as distribution-shift-problem (DSP). To address the DSP, we propose Multi-Head Feature Collaboration (MHFC) algorithm, which attempts to project the multi-head features (e.g., multiple features extracted from a variety of FEMs) to a unified space and fuse them to capture more discriminative information. Typically, first, we introduce a subspace learning method to transform the multi-head features to aligned low-dimensional representations. It corrects the DSP via learning the feature with more powerful discrimination and overcomes the problem of inconsistent measurement scales from different head features. Then, we design an attention block to update combination weights for each head feature automatically. It comprehensively considers the contribution of various perspectives and further improves the discrimination of features. We evaluate the proposed method on five benchmark datasets (including cross-domain experiments) and achieve significant improvements of 2.1%-7.8% compared with state-of-the-arts.
description: Accepted by the 29th ACM International Conference on Multimedia (ACMMM) 2021
Land use controls : flexibility and discretion
Creators: name: Hughes, Willard Gerald
Publisher: name: University of British Columbia
Year: 2010

description: Zoning has existed in North America since the early 1900's and has evolved from the traditional self-executing Euclidean zoning approach to the recent use of flexible zoning techniques involving increased discretionary judgment by delegated boards and officials. This study examines the evolution and increased use of flexible zoning techniques which afford greater opportunity for creativity and innovation, and allows for individualized treatment of projects compared to the traditional approach of pre-determined, rigid regulation which often inhibits and responds poorly to changing public needs. However, because these techniques are more flexible and decisions more discretionary, they are more difficult to administer, have the potential for abuse, and involve greater public risk. The thesis examines the concept of administrative discretion, and formulates a conceptual framework which identifies three preconditions which must be provided in a discretionary zoning system in order to inform and control discretionary judgments. First, a substantive basis is required comprised of two parts: a) a technical basis in standards; b) a policy basis in a comprehensive plan. Thirdly, procedural safeguards are required to prevent abuse, and increase openness and accountability. The second part of the thesis examines the City of Vancouver land use control system with respect to the nature and extent of administrative discretion and its relationship to the conceptual framework. It reveals that wide discretionary powers are granted to Vancouver boards/officials (the Development Permit Board and the Director of Planning). The study concluded that the Vancouver discretionary zoning system complies with the intent of the conceptual framework; however, major deficiencies in the Vancouver legislation and process are identified. Comments and suggestions are offered towards compliance with the conceptual framework and achievement of planning objectives. The study revealed that there is no universal answer to the question of what is the optimum balance between flexibility and certainty in land use regulation. The two extremes of complete unfettered discretion or complete rigidity are not desired. Rather, what is needed is flexibility with restraint. Discretion must exist, yet it must be part of a continuous comprehensive planning process which offers substantive guidance and safeguards, and is exercised by competent boards/officials to whom decision making has been delegated.
Wetting of gradient fields: pathwise estimates
Creators: name: Velenik, Yvan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60K35, 82B41

description: We consider the wetting transition in the framework of an effective interface model of gradient type, in dimension 2 and higher. We prove pathwise estimates showing that the interface is localized in the whole thermodynamically-defined partial wetting regime considered in earlier works. Moreover, we study how the interface delocalizes as the wetting transition is approached. Our main tool is reflection positivity in the form of the chessboard estimate.
description: Some typos removed after proofreading. Version to be published in PTRF
Teleportation of qubit states through dissipative channels: Conditions for surpassing the no-cloning limit
Creators: name: Ozdemir, Sahin Kaya
name: Bartkiewicz, Karol
name: Liu, Yu-xi
name: Miranowicz, Adam
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate quantum teleportation through dissipative channels and calculate teleportation fidelity as a function of damping rates. It is found that the average fidelity of teleportation and the range of states to be teleported depend on the type and rate of the damping in the channel. Using the fully entangled fraction, we derive two bounds on the damping rates of the channels: one is to beat the classical limit and the second is to guarantee the non-existence of any other copy with better fidelity. Effect of the initially distributed maximally entangled state on the process is presented; and the concurrence and the fully entangled fraction of the shared states are discussed. We intend to show that prior information on the dissipative channel and the range of qubit states to be teleported is helpful for the evaluation of the success of teleportation, where success is defined as surpassing the fidelity limit imposed by the fidelity of 1-to-2 optimal cloning machine for the specific range of qubits.
description: 12 pages, 7 figures, to appear in Phys. Rev. A
New Trends in Agricultural Education and Management Training
Creators: name: Fehér, István
Publisher: name: Unknown
Year: 1991
Subjects: Farm Management
Teaching/Communication/Extension/Profession

description: The political, social and economic changes of recent years in Hungary accelerated in 1990 and have led to a complete change of the system. The agricultural and food sector has been considered for long the key sector of the country's economy; it can perform its role and meet the expectations successfully in the future only if it implements an ownership reform and a restructuring. For this reason it is necessary to improve also in this important segment of the economy the adaptability to the rapid changes of social and economic circumstances. The role of managers working in the agricultural and food sector is significant in the transformation of the economy.
Without enhancing the human resources of the sector the international competitiveness of its production and servicing activities cannot be achieved. Of the institutions of management training the institutes of 'third level education and continued training both play an important role in spreading the modern management methods and skills. Management training and continued training will help the managers in performing successfully their changed tasks only if it leaves off the traditional "classroom" style of training based on courses, and instead offers the managers what they in fact need.
description: Eighth International Farm Management Congress, New Zealand, 4-9 February 1991
Future Education: The Teaching of Farm Management
Creators: name: Giles, A.K.
Publisher: name: Unknown
Year: 1991
Subjects: Farm Management
Teaching/Communication/Extension/Profession

description: This paper is in three parts. First, it addresses some conceptual considerations prompted by the title: management, teaching, education and the future. It then discusses some practical aspects of teaching farm management to different age groups, before, during, and after employment. It does not make detailed recommendations about teaching syllabuses but it concludes with some general reflections on farm management and their implications for its teaching.
description: Eighth International Farm Management Congress, New Zealand, 4-9 February 1991
Two-blackbody portraits of radiation from magnetized neutron stars
Creators: name: Yakovlev, D. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study a simple model describing thermal radiation spectra from magnetized neutron stars. The model assumes that a star is nearly spherical and isothermal inside and possesses dipole magnetic fields ($B \lesssim 10^{14}$ G) near the surface, which make the surface temperature distribution non--uniform. We assume further that any surface element emits a blackbody (BB) spectrum with a local effective temperature. We show that such thermal spectra (including phase--resolved) are accurately approximated by simple equivalent two--BB (2BB) models. We introduce and study phase--space maps of 2BB parameters and show that these maps can be useful for interpreting neutron star observations, in which 2BB spectral fits have been done.
description: 10 pages, 8 figures, MNRAS, accepted
Three months journeying of a Hawaiian monk seal
Creators: name: Brillinger, David R.
name: Stewart, Brent S.
name: Littnan, Charles L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Applications (stat.AP)
subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 60J60, 62G08, 62M10, 70F99 (Primary)

description: Hawaiian monk seals (Monachus schauinslandi) are endemic to the Hawaiian Islands and are the most endangered species of marine mammal that lives entirely within the jurisdiction of the United States. The species numbers around 1300 and has been declining owing, among other things, to poor juvenile survival which is evidently related to poor foraging success. Consequently, data have been collected recently on the foraging habitats, movements, and behaviors of monk seals throughout the Northwestern and main Hawaiian Islands. Our work here is directed to exploring a data set located in a relatively shallow offshore submerged bank (Penguin Bank) in our search of a model for a seal's journey. The work ends by fitting a stochastic differential equation (SDE) that mimics some aspects of the behavior of seals by working with location data collected for one seal. The SDE is found by developing a time varying potential function with two points of attraction. The times of location are irregularly spaced and not close together geographically, leading to some difficulties of interpretation. Synthetic plots generated using the model are employed to assess its reasonableness spatially and temporally. One aspect is that the animal stays mainly southwest of Molokai. The work led to the estimation of the lengths and locations of the seal's foraging trips.
description: Published in at http://dx.doi.org/10.1214/193940307000000473 the IMS Collections (http://www.imstat.org/publications/imscollections.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
Future Farm Management Education in Australia
Creators: name: Chudleigh, John W.
Publisher: name: Unknown
Year: 1991
Subjects: Farm Management
Teaching/Communication/Extension/Profession

description: Over the last fifty years, farm management education has moved from having principally a technical emphasis to having a far greater financial emphasis. Farm management research and publication, however, has decreased significantly since the 1970’s. The relevance of current farm management education is obviously not widely accepted by practising farmers, as only 11.7% of new entrants into farming appear to have a formal qualification in agriculture. Emerging challenges to farm managers include society’s growing environmental awareness, the change from a commodity based to a product based agriculture and the management of increasing risk in finance and marketing. Farm Management education needs to respond to these challenges by creating more versatile and responsive graduates with a broader management understanding. By concentrating on the individual’s management approaches and understanding, as well as appropriate altitudinal development, future managers should be better able to cope with the increasingly complex and dynamic challenges of farm management. The University of New England - Orange Agricultural College has commenced the development of a new approach to management education which will have significant benefits to the future discipline of farm management itself.
description: Eighth International Farm Management Congress, New Zealand, 4-9 February 1991
Electronic phase separation: recent progress in the old problem
Creators: name: Kagan, M. Yu.
name: Kugel, K. I.
name: Rakhmanov, A. L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We consider the nanoscale electronic phase separation in a wide class of different materials, mostly in strongly correlated electron systems. The phase separation turns out to be quite ubiquitous manifesting itself in different situations, where the itineracy of charge carriers competes with their tendency toward localization. The latter is often related to some specific type of magnetic ordering, e.g. antiferromagnetic in manganites and low-spin states in cobaltites. The interplay between the localization-induced lowering of potential energy and metallicity (which provides the gain in the kinetic energy) favors an inhomogeneous ground state such as nanoscale ferromagnetic droplets in an antiferromagnetic insulating background. The present review article deals with the advances in the subject of electronic phase separation and formation of different types of nanoscale ferromagnetic (FM) metallic droplets (FM polarons or ferrons) in antiferromagnetically ordered (AFM), charge-ordered (CO), or orbitally-ordered (OO) insulating matrices, as well as the colossal magnetoresistance (CMR) effect and tunneling electron transport in the nonmetallic phase-separated state of complex magnetic oxides. It also touches upon the compounds with spin-state transitions, inhomogeneous phase-separated state in strongly correlated multiband systems, and electron polaron effect. A special, attention is paid to the systems with the imperfect Fermi surface nesting such as chromium alloys, iron-based pnictides, and AA stacked graphene bilayers.
description: 135 pages, 72 figures, submitted to Physics Reports
A note on the heat kernel coefficients for nonminimal operators
Creators: name: Ananthanarayan, B.
Publisher: name: arXiv
Year: 2008
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 consider certain results for the heat kernel of nonminimal operators. The general expressions provided by Gusynin and Kornyak resulting from symbolic computation programmes for n dimensions are evaluated for 4 dimensions which are checked against results given by Barvinsky and Vilkovisky. We also check that the results in flat space are consistent with earlier results of Guendelmen et al. We then consider a powerful construction of the Green function of a nonminimal operator by Shore for covariantly constantly gauge fields in flat spacetime, and employ dimensional arguments to produce a check on the gauge parameter dependence of a certain coefficient. The connection of the results for heat kernel coefficients emanating from the construction of Shore, to those from other techniques is hereby established for the first time.
description: 9 pages, plain latex, accepted for publication by Journal of Physics A
Deviations from Tri-bimaximal Mixing: Charged Lepton Corrections and Renormalization Group Running
Creators: name: Boudjemaa, S.
name: King, S. F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the effects of charged lepton corrections and renormalization group (RG) running on the low energy predictions of theories which accurately predict tri-bimaximal neutrino mixing at the high energy scale. In particular we focus on GUT inspired see-saw models with accurate tri-bimaximal neutrino mixing at the GUT scale, in which the charged lepton corrections are Cabibbo-like and give rise to sum rules valid at the GUT scale. We study numerically the RG corrections to a variety of such neutrino mixing sum rules in order to assess their accuracy and reliability when comparing them to future low energy neutrino oscillation experiments. Our results indicate that the RG corrections to neutrino mixing sum rules are typically small (less than one degree), at least in the examples studied with hierarchical neutrinos.
description: Comparison of numerical results to analytic estimates added. 26 pages, 19 figures
Gray et al (2011): Replication and extension
Creators: name: Feldman, Gilad
name: Ivard, Tsz
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: agency
subject: extension
subject: judgment and decision making
subject: mind
subject: replication
subject: social psychology

description: Please see pre-registration folder, with Registered Report style pre-registration manuscript, written based on simulated random datasets and with data analysis plan JAMOVI code.
Factors affecting development and implementation of an intermediate grade art curriculum in a South-Central British Columbia school district
Creators: name: Horsland, Craig
Publisher: name: University of British Columbia
Year: 2010

description: Those factors that positively and negatively affect curriculum development and curriculum implementation were identified through a literature review and a field study in which a sequential intermediate grade art curriculum was developed and taken through the initial stages of implementation. An attempt was.made to restrain the negative factors and to utilize the positive factors in a field study involving volunteer intermediate grade teachers in a south-central British Columbia school district. The process of development involved planning a curriculum that had 'possible' learning outcomes rather than intended learning outcomes. This curriculum proposed alternative lesson and unit components so that teachers in their planning could consider different purposes, pupils, and situations. Not considered perfect, the curriculum facilitated observation of the factors affecting development and implementation. Introducing the human factor to theoretical plans necessitated responsive adaptation in practice. Of all the factors affecting this study the district supervisor responsible for curriculum was found to be one of the most important. Communication, time, energy, stamina, and perseverence were also seen as being critical to success. Without perseverence success may not be given an opportunity to evolve. As a result of this field study, implementation was determined to be an on-going process when a curriculum is continuously adapted, added to, and modified. Implementation involved teaching teachers and attempting to provide for teacher success. A broadened definition of in-service was partially explored. One major recommendation of this study is that both the curriculum and an implementation plan should be approved by the local curriculum advisory committee and the board of school trustees before implementation begins. This study noted the need to link the district level strategy for curriculum implementation with the professional development plans of individual schools. The curriculum development and implementation model explored, and the accompanying interpretive criticism are provided as a data base for other school district personnel who want a point of reference from which to plan and implement lasting curriculum changes that allow for continuing modification.
Large Attractive Depletion Interactions in Soft Repulsive-Sphere Binary Mixtures
Creators: name: Cinacchi, Giorgio
name: Martinez-Raton, Yuri
name: Mederos, Luis
name: Navascues, Guillelmo
name: Tani, Alessandro
name: Velasco, Enrique
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider binary mixtures of soft repulsive spherical particles and calculate the depletion interaction between two big spheres mediated by the fluid of small spheres, using different theoretical and simulation methods. The validity of the theoretical approach, a virial expansion in terms of the density of the small spheres, is checked against simulation results. Attention is given to the approach toward the hard-sphere limit, and to the effect of density and temperature on the strength of the depletion potential. Our results indicate, surprisingly, that even a modest degree of softness in the pair potential governing the direct interactions between the particles may lead to a significantly more attractive total effective potential for the big spheres than in the hard-sphere case. This might lead to significant differences in phase behavior, structure and dynamics of a binary mixture of soft repulsive spheres. In particular, a perturbative scheme is applied to predict the phase diagram of an effective system of big spheres interacting via depletion forces for a size ratio of small and big spheres of 0.2; this diagram includes the usual fluid-solid transition but, in the soft-sphere case, the metastable fluid-fluid transition, which is probably absent in hard-sphere mixtures, is close to being stable with respect to direct fluid-solid coexistence. From these results the interesting possibility arises that, for sufficiently soft repulsive particles, this phase transition could become stable. Possible implications for the phase behavior of real colloidal dispersions are discussed.
description: 31 pages, 8 figures; version accepted for publication in the Journal of Chemical Physics
Direction Reconstruction using a CNN for GeV-Scale Neutrinos in IceCube
Creators: name: Yu, Shiqi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The IceCube Neutrino Observatory observes neutrinos interacting deep within the South Pole ice. It consists of 5,160 digital optical modules embedded within a cubic kilometer of ice, over depths of 1,450 m to 2,450 m. At the lower center of the array is the DeepCore subdetector. Its denser sensor configuration lowers the observable energy threshold to the GeV-scale, facilitating the study of atmospheric neutrino oscillations. The precise reconstruction of neutrino direction is critical in the measurements of oscillation parameters. This work presents a method to reconstruct the zenith angle of GeV-scale events in IceCube by using a convolutional neural network and compares the result to that of the current likelihood-based reconstruction algorithm.
description: Presented at the 37th International Cosmic Ray Conference (ICRC 2021). See arXiv:2107.06966 for all IceCube contributions. 8 pages
Service-Oriented Information-Centric Vehicular Ad-hoc Networks
Creators: name: Modesto, Felipe
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: Computer Networks
Vehicular Networks
Information-Centric Networks
Service-Centric Architecture
Intermediate Caching
Content-Centric Networks

description: With Vehicular mobile communication becoming a daily requirement and an ever increasing number of services being available to passengers, it is clear that vehicular networks efficient communication systems. VANETs, one of the most significant trends in ad-hoc networking, has much to gain from improved content delivery and one of the leading contenders for mobile networks is the Information-Centric networking approach. Its peculiarities define the Vehicular Environment requires specialized solutions, tailored for highly mobile environments. The main contribution of this thesis is the introduction of a novel architecture and components. We perform extensively discuss Information-Centric Vehicular Ad-hoc Networks. Additionally, we perform an in-depth analysis of bus-based transit systems into VANETs not only as participating members but as service providers and official agents including roles and potential challenges. We perform statistical analysis and analyze world data to denote the intrinsic potential of public transit systems. From the discussions presented, we introduce a novel service-based system architecture for Information-Centric Networking named SEVeN. The proposed model is designed to enable service exchange and service management in highly competitive vehicular ad-hoc networks. The proposed SEVeN architecture includes the introduction of a novel purpose-defined naming policy and service sub-layer as well as a service prioritization policy named LBD. We also discuss the current state of ICN caching in VANET, existing issues faced by vehicular networks and potential approaches based on intermediate cache coordination that can be taken to mitigate existing shortcommings. We perform a series of simulations and analyze the efficiency of popular caching in various network configurations to denote current shortcomings. From this discussion, we propose a cache content insertion policies, UG-Cache and MG-Cache, for ICN-VANETs. In these cache policies, cache insertion decisions are made based on recommendations from content sender dependent on request frequency and cache distance. We also introduce a caching policy based on collaborative observation of locality in request frequency, designed to allow vehicles to preemptively distribute and store in a reserved portion of the cache based on the cooperative observation of requests with provider-based location correlation. All novel elements proposed by this thesis are discussed, described, evaluated within the chapters of this thesis.
Constraints on Unparticle Interaction from $b\to s γ$
Creators: name: He, Xiao-Gang
name: Tsai, Luhsing
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study unparticle effects on $b\to s γ$. The unparticle contributions can contribute significantly to both left- and right-handed chirality amplitudes. Using available experimental data and SM calculation for $B\to X_s γ$, we obtain constraints on various vector and scalar unparticle couplings. We find that the constraints sensitively depend on the unparticle dimension $d_\U$. For $d_\U$ close to one, the constraints can be very stringent. The constraints become weak when $d_\U$ is increased. In general the constraints on scalar unparticle couplings are weaker than those for vector unparticle couplings. Sizeable coupling strength for unparticles with quarks is still allowed. We also show that polarization measurement in $Λ_b \to Λγ$ can further constrain the couplings.
description: RevTex 13 pages with one figure. Yops in sign corrected. New materials added
Environmental Effects on Farms Management
Creators: name: Ehrenkrona, Carl-Erik
Publisher: name: Unknown
Year: 1991
Subjects: Environmental Economics and Policy
Farm Management

description: I am a farmer from southern Sweden with a farm of 400 ha arable land, 900 ha forest and 200 dairy cows. The farm has 8 full-time employees. My own agricultural education resulted in an MSc. in Agricultural Economics.
As regards both area and population, Sweden is about twice as large as New Zealand. We have a temperate climate and good conditions for agriculture.
Sweden is an industrial country with agricultural production directed at the domestic market, which is regulated by internal controls which, in turn, prevent market forces from operating. In addition, there is comprehensive tariff protectionism. The internal controls are being dismantled and the next in line will be the protectionism.
The Swede is accustomed to having access to a clean and extensive natural environment where he or she can move freely in the forests or the open countryside.
Traditional business management has been working along the same lines for several decades. However, there are numerous opportunities for those who own land, capital and have access to labour. Good management resources are required with regard to:
• Vi sions and adaptation
• Marketing
• Competition
• Etc.
A pefwnal look at business management is given from two viewpoints:
• From the traditional approach
• As I see it.
I find that I pay consideration to the new demands of the public and of society.
A practical example of a new marketing approach is given where I plan a housing estate around a stable for horses, a riding-school, cross-coutrtry riding trails, pastures, etc.
description: Eighth International Farm Management Congress, New Zealand, 4-9 February 1991
Synthesis of Analogs of a Potential Drug for Treatment of Epilepsy
Creators: name: Fluet-Chouinard, Adrien
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2019
Subjects: Synthesis of Analogs
Potential Drug
Treatment of Epilepsy
Anti-epileptic drug
Structure-activity relationship

description: Prior work in the Durst group had generated more than forty analogs of the potent anticonvulsant isoxylitone isolated isolated from a medicinal plant Delphinium denudatum Wall. The nitrile designated as TD532 was the most potent compound generated by A. Saikaley. The starting material for the synthesis of TD532 is isophorone. The observation that TD532 showed considerable potential as an anticonvulsant suggested that other cyclohexenones might have have similar activity. During this project close to fifty derivatives of cyclohex-2-enone, focusing mainly on 3-arylcylohex-2-enones, were prepared. The synthesis of these compounds is described and structure activity relationships are discussed. Based on all the available structure activity data, we have designated the indicated portion of structure A as the pharmacophore for anticonvulsant and anti-epileptic activity. The ester designated as TD561 (compound 40) showed excellent potential in both in vitro and in vivo assays. It has been shown to be a pro-drug of the corresponding acid TD562 (compound 48). These two compounds and the sodium salt of TD562 are currently undergoing final pre-clinical studies at the Center for Drug Research and Development in Vancouver. Five analogs, including TD561 are also under investigation by the Epilepsy and Seizure Division of the US National Institutes of Health.
Bounds on variation of spectral subspaces under J-self-adjoint perturbations
Creators: name: Albeverio, S.
name: Motovilov, A. K.
name: Shkalikov, A. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 47A56, 47A62 (Primary); 47B15, 47B49 (Secondary)

description: Let $A$ be a self-adjoint operator on a Hilbert space $\fH$. Assume that the spectrum of $A$ consists of two disjoint components $σ_0$ and $σ_1$. Let $V$ be a bounded operator on $\fH$, off-diagonal and $J$-self-adjoint with respect to the orthogonal decomposition $\fH=\fH_0\oplus\fH_1$ where $\fH_0$ and $\fH_1$ are the spectral subspaces of $A$ associated with the spectral sets $σ_0$ and $σ_1$, respectively. We find (optimal) conditions on $V$ guaranteeing that the perturbed operator $L=A+V$ is similar to a self-adjoint operator. Moreover, we prove a number of (sharp) norm bounds on variation of the spectral subspaces of $A$ under the perturbation $V$. Some of the results obtained are reformulated in terms of the Krein space theory. As an example, the quantum harmonic oscillator under a PT-symmetric perturbation is discussed.
Black Hole Shadow in Symmergent Gravity
Creators: name: Çimdiker, İrfan
name: Demir, Durmuş
name: Övgün, Ali
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Symmergent gravity is the $R+R^2$ gravity theory which emerges in a way restoring gauge symmetries broken explicitly by the ultraviolet cutoff in effective field theories. To test symmergent gravity we construct novel black hole solutions in four dimensions, and study their shadow in the vacuum as well as plasma medium. Our detailed analyses show that the horizon radius, Hawking temperature, Bekenstein-Hawking entropy, shadow angular radius, and photon deflection angle are sensitive probes of the symmergent gravity and particle spectrum of the underlying quantum field theory.
description: 13 pp, 12 figs, 1 table. v2: Added a referece, corrected a typo