cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Identifying the dimensions of environmental press at the elementary school level : Afactor analysis of beta press
Creators: name: Sadker, David
name: Sinclair, Robert L.
Publisher: name: American University
Year: 2023

description: This document gives a detailed report of the advancement of an instrument for assessing the elementary school educational environment of young children. Fifty-four public elementary schools (grades K-6) in Massachusetts were randomly selected. Educational environment was assessed in the sampled schools by having 5,412 fifth- and sixth-grade students respond to two forms of the Elementary School Environment Survey (ESES) consisting of 40 statements each concerning conditions and happenings characteristic of elementary schools. Students were asked to respond to each statement in ESES as a true or false description of their elementary schools. These responses were subjected to factor analysis and rotated along oblique axes. Six emerging factors were reviewed by 12 judges and contextually named: alienation, humanism, autonomy, morale, opportunism, and resource. A procedure for assessing environments and ways in which environmental information might be used are suggested. A 14-item bibliography is included.
Identifying the dimensions of environmental press at the elementary school level : Afactor analysis of beta press
Creators: name: Sadker, David
name: Sinclair, Robert L.
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 39
subject: Education

description: This document gives a detailed report of the advancement of an instrument for assessing the elementary school educational environment of young children. Fifty-four public elementary schools (grades K-6) in Massachusetts were randomly selected. Educational environment was assessed in the sampled schools by having 5,412 fifth- and sixth-grade students respond to two forms of the Elementary School Environment Survey (ESES) consisting of 40 statements each concerning conditions and happenings characteristic of elementary schools. Students were asked to respond to each statement in ESES as a true or false description of their elementary schools. These responses were subjected to factor analysis and rotated along oblique axes. Six emerging factors were reviewed by 12 judges and contextually named: alienation, humanism, autonomy, morale, opportunism, and resource. A procedure for assessing environments and ways in which environmental information might be used are suggested. A 14-item bibliography is included.
Sexism in education : reality and response
Creators: name: Sadker, Myra
name: Sadker, David
Publisher: name: American University
Year: 2023

description: This discussion of sexist practices in classrooms throughout the country focuses on the concept of performance-based teacher education as one approach to the elimination of sex bias. Research indicates that female students undergo a loss of acadgaic ability and sense of self-esteem as they progress through school. Male students also respond to sexist practices in education. This paper identifies and delineates competencies to be included in programs of teacher education in an effort to eliminate classroom bias. Suggested cogpetencies fall into four categories: (1) awareness, (2) clarification, (3) classroom behaviors, and (4) professional and societal behaviors. Competencies must be designed to confront and eliminate such debilitating practices as sex bias or they will not be worth the modules into which they are incorporated.
An investigation into energy generating tiles : Pavegen
Creators: name: Seow, Zhen Liang
name: Chen, Song Tao
name: Khairudin, Nor Bainin
Publisher: name: The University of British Columbia
Year: 2012

description: Clean, renewable and environmentally friendly energy generation has always been an issue that needs to be solved. Technologists have created various methods such as solar panels, wind turbine, hydro electricity and so forth. However, Pavegen has come up with another innovative idea, which is to generate electricity from kinetic energy. Since there are a large number of students patronizing the Student Union Building, the AMS is considering installing Pavegen tiles into the new SUB building in an effort to promote sustainability. This paper will investigate the advantages and disadvantages of the installation of Pavegen using triple bottom line assessment. From the economical aspect, the tiles payback period is much longer than the lifetime of the tiles which means that the cost of this project exceeds its economical benefit. Meanwhile, from the social aspect, there is a possibility that Pavegen can help raise the awareness of sustainability amongst the students patronizing the SUB and strengthen the image of UBC as global leader of sustainability. However, Pavegen may bring up some ethical issues such as harvesting human energy without their consent. Lastly, from the environmental aspect, based on an observation and a few assumptions, the total energy Pavegen will produce in its lifetime is found not able to cover the carbon footprint resulted from the manufacturing and shipping of the product. In conclusion, triple bottom line assessment shows that the implementation of Pavegen in the new SUB will be beneficial to the society but will negatively impact the economy and environment. Unless another company that manufactures a similar product is chosen from the United States or Canada, it is recommended that UBC should not install the tiles. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
mmLSH: A Practical and Efficient Technique for Processing Approximate Nearest Neighbor Queries on Multimedia Data
Creators: name: Jafari, Omid
name: Nagarkar, Parth
name: Montaño, Jonathan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences
subject: H.2.4

description: Many large multimedia applications require efficient processing of nearest neighbor queries. Often, multimedia data are represented as a collection of important high-dimensional feature vectors. Existing Locality Sensitive Hashing (LSH) techniques require users to find top-k similar feature vectors for each of the feature vectors that represent the query object. This leads to wasted and redundant work due to two main reasons: 1) not all feature vectors may contribute equally in finding the top-k similar multimedia objects, and 2) feature vectors are treated independently during query processing. Additionally, there is no theoretical guarantee on the returned multimedia results. In this work, we propose a practical and efficient indexing approach for finding top-k approximate nearest neighbors for multimedia data using LSH called mmLSH, which can provide theoretical guarantees on the returned multimedia results. Additionally, we present a buffer-conscious strategy to speed up the query processing. Experimental evaluation shows significant gains in performance time and accuracy for different real multimedia datasets when compared against state-of-the-art LSH techniques.
description: Submitted to SISAP 2020
Aging Studies for the Large Honeycomb Drift Tube System of the Outer Tracker of HERA-B
Creators: name: B Outer Tracker Group
name: Albrecht, H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The HERA-B Outer Tracker consists of drift tubes folded from polycarbonate foil and is operated with Ar/CF4/CO2 as drift gas. The detector has to stand radiation levels which are similar to LHC conditions. The first prototypes exposed to radiation in HERA-B suffered severe radiation damage due to the development of self-sustaining currents (Malter effect). In a subsequent extended R&D program major changes to the original concept for the drift tubes (surface conductivity, drift gas, production materials) have been developed and validated for use in harsh radiation environments. In the test program various aging effects (like Malter currents, gain loss due to anode aging and etching of the anode gold surface) have been observed and cures by tuning of operation parameters have been developed.
description: 14 pages, 6 figures, to be published in the Proceedings of the International Workshop On Aging Phenomena In Gaseous Detectors, 2-5 Oct 2001, Hamburg, Germany
Spectra and Diagnostics for the Direct Detection of Wide-Separation Extrasolar Giant Planets
Creators: name: Burrows, Adam
name: Sudarsky, David
name: Hubeny, Ivan
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate as a function of orbital distance, mass, and age the theoretical spectra and orbit-averaged planet/star flux ratios for representative wide-separation extrasolar giant planets (EGPs) in the optical, near-infrared, and mid-infrared. Stellar irradiation of the planet's atmosphere and the effects of water and ammonia clouds are incorporated and handled in a consistent fashion. We include predictions for 12 specific known EGPs. In the process, we derive physical diagnostics that can inform the direct EGP detection and remote sensing programs now being planned or proposed. Furthermore, we calculate the effects of irradiation on the spectra of a representative companion brown dwarf as a function of orbital distance.
description: submitted to the Astrophysical Journal, 19 pages, 11 color figures
Sexism in education : reality and response
Creators: name: Sadker, Myra
name: Sadker, David
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3904
subject: Specialist studies in education
classificationCode: 4405
subject: Gender studies

description: This discussion of sexist practices in classrooms throughout the country focuses on the concept of performance-based teacher education as one approach to the elimination of sex bias. Research indicates that female students undergo a loss of acadgaic ability and sense of self-esteem as they progress through school. Male students also respond to sexist practices in education. This paper identifies and delineates competencies to be included in programs of teacher education in an effort to eliminate classroom bias. Suggested cogpetencies fall into four categories: (1) awareness, (2) clarification, (3) classroom behaviors, and (4) professional and societal behaviors. Competencies must be designed to confront and eliminate such debilitating practices as sex bias or they will not be worth the modules into which they are incorporated.
Flipping SU(5) Towards Five Dimensional Unification
Creators: name: Dorsner, I.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is shown that embedding of flipped SU(5) in a five-dimensional SO(10) enables exact unification of the gauge coupling constants. The demand for the unification uniquely determines both the compactification scale and the cutoff scale. These are found to be 5.5 \times 10^{14} GeV and 1.0 \times 10^{17} GeV respectively. The theory explains the absence of d=5 proton-decay operators through the implementation of the missing partner mechanism. On the other hand, the presence of d=6 proton-decay operators points towards the bulk localization of the first and the second family of matter fields.
description: 21 pages, references added, 3 Postscript figures, ReVTeX4
Optimum Currency Area Theory: A Framework for Discussion about Monetary Integration
Creators: name: Horvath, Roman
name: Komarek, Lubos
name: Horvath, Roman
name: Komarek, Lubos
Publisher: name: Unknown
Year: 2002
Subjects: subject: Agricultural and Food Policy
subject: Financial Economics
subject: Optimum currency area theory
subject: central banking
subject: transition
subject: European Union

description: The optimum currency area (OCA) theory tries to answer an almost prohibitively difficult question: what is the optimal number of currencies to be used in one region. The difficulty of the question leads to a low operational precision of OCA theory. Therefore, we argue that the OCA theory is a framework for discussion about monetary integration. We summarize theoretical issues from the classical contributions to the OCA literature in the 1960s to the modern “endogenous view”. A short survey of empirical studies on the OCA theory in the connection with the EMU and the Czech Republic is presented. Finally, we calculate OCA-indexes for the Czech Republic, EU, Germany and Portugal. The index predicts exchange rates variability from the view of traditional OCA criteria and asseses benefit-cost ratio of implementing common currency for a pair of the countries. We compare the structural similarity of the Czech Republic and Portugal to the German economy and find that the Czech economy is closer. The results are reversed when the EU economy is considered as a benchmark country.
Work-extraction from fluid flow: the analogue of Carnot's efficiency
Creators: name: Allahverdyan, A. E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Aiming to explore physical limits of wind turbines, we develop a model for determining the work extractable from a compressible fluid flow. The model employs conservation of mass, energy and entropy and leads to a universal bound for the efficiency of the work extractable from kinetic energy. The bound is reached for a sufficiently slow, weakly-forced quasi-one-dimensional, dissipationless flow. In several respects the bound is similar to the Carnot limit for the efficiency of heat-engines. More generally, we show that the maximum work-extraction demands a contribution from the enthalpy, and is reached for sonic output velocities and strong forcing.
description: 5+10 pages, 3+6 figures
Power Indices as an Aid to Institutional Design: The Generalised Apportionment Problem
Creators: name: Leech, Dennis
name: Leech, Dennis
Publisher: name: Unknown
Year: 2002
Subjects: Political Economy
Public Economics

description: A priori voting power analysis can be useful in helping to design a weighted voting system that has certain intended properties. Power indices can help determine how many weighted votes each member should be allocated and what the decision rule should be. These choices can be made in the light of a requirement that there be a given distribution of power and/or a desired division of powers between individual members and the collective institution. This paper focuses on the former problem: choosing the weights given that the power indices and the decision rule are fixed exogenously.
Panamapoda panamensis Giesbert 1996
Creators: name: Clarke, Robin O. S.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Panamapoda
Panamapoda panamensis

description: Panamapoda panamensis Giesbert (1996)
 Figs. 2A, 2B
 Phygopoda panamensis Giesbert, 1996: 332. Phygopoda panamensis; Monné 2005: 499 (cat.).
 Specimen analysed: paratype, PANAMA, Panama pt., 7-10 km N El Llano, 1 male, 14-22. V.1993, E. Giesbert col. (FSCA).
 Colour: upper forebody entirely black, elytra almost entirely testaceous; sterna chestnut to pale chestnut, abdomen chestnut with extreme base and apex of abdomen yellowish. Antennae almost entirely blackish, scape and pedicel chestnut. Legs yellowish with chestnut pro-and mesofemora, yellow metafemora, and chestnut metatarsi.
description: Published as part of Clarke, Robin O. S., 2014, Bolivian Rhinotragini VIII: new genera and species related to Pseudophygopoda Tavakilian & Peñaherrera-Leiva, 2007 (Coleoptera, Cerambycidae), pp. 341-362 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (24) on page 349, DOI: 10.1590/0031-1049.2014.54.24, http://zenodo.org/record/4674675
Effect of electromagnetic fields on deformed AdS_5 models
Creators: name: Masoumi, Davoud
name: Shahkarami, Leila
name: Charmchi, Farid
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The response of a QCD-like gauge theory, holographically dual to a deformed $\mathrm{AdS}_5$ model, to constant electromagnetic fields is thoroughly investigated. The calculations in this paper are performed for three different cases, i.e., with only a quadratic correction, with only a logarithmic correction, and with both quadratic and logarithmic corrections, for which the parameters are chosen as the ones found in \cite{quadlog} by fitting to experimental and lattice results. The critical electric fields of the system are found by analyzing its total potential. Comparing the total potential for the three cases, we observe that the quarks can be liberated easier in quadratic and then logarithmic case, for a given electric field. Then, by calculating the expectation value of a circular Wilson loop, the pair production rate is evaluated while a constant electric field as well as a constant magnetic field are present. The aforementioned result obtained from the potential analysis is also confirmed here when no magnetic fields are present. We moreover find that the presence of a magnetic field perpendicular to the direction of the electric field suppresses the rate of producing the quark pairs and accordingly increases the critical electric field below which the Schwinger effect does not occur. Interestingly, the presence of a parallel magnetic field alone does not change the response of the system to the external electric field, although it enhances the creation rate when a perpendicular magnetic field is also present.
Pseudophygopoda Tavakilian & Penaherrera-Leiva 2007
Creators: name: Clarke, Robin O. S.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Pseudophygopoda

description: Key to the genera related to Pseudophygopoda
1. Pronotum with dense patches of recumbent pubescence, the hairs brassy or golden in colour....................2
 — Pronotum may be pubescent, but the hairs not brightly coloured, and not in dense, recumbent patches (but see Paramelitta aglaia Figs. 6A, 6C).........................................................................................................3
 2. Abdomen in both sexes fusiform; pronotal pubescence brassy. N. Brazil, French Guiana. Figs. 1 A-1D................................................................................... Pseudophygopoda Tavakilian & Peñaherrera-Leiva, 2007.
 — Abdomen in male almost cylindrical; pronotal pubescence golden. Panama. Figs. 2A, 2B.......................................................................................................................................................... Panamapoda gen. nov.
 3. Metafemur strongly pedunculate clavate, and the clave much shorter than peduncle; metatarsi about as wide as apex of metatibia. Bolivia, Brazil, French Guiana, Peru. Figs. 3-5, 11, 13......... Paraphygopoda gen. nov.
— Metafemur subcylindrical, and the clave longer than the peduncle; metatarsi narrower than apex of metatibia..........................................................................................................................................................4
 4. Metatibia with large, dense brush; in males mesofemoral claves strongly broadened (when viewed laterally). Bolivia, Brazil. Figs. 6-7, 14...................................................................................... Paramelitta gen. nov.
 — Metatibia without brush; in males mesofemoral claves not strongly broadened (when viewed laterally). Brazil. Figs. 8, 12......................................................................................................... Phygomelitta gen. nov.
description: Published as part of Clarke, Robin O. S., 2014, Bolivian Rhinotragini VIII: new genera and species related to Pseudophygopoda Tavakilian & Peñaherrera-Leiva, 2007 (Coleoptera, Cerambycidae), pp. 341-362 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (24) on page 345, DOI: 10.1590/0031-1049.2014.54.24, http://zenodo.org/record/4674675
Paraphygopoda Clarke 2014
Creators: name: Clarke, Robin O. S.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Paraphygopoda

description: Key to the species of Paraphygopoda
1. Apex of metafemoral clave just passing apex of abdomen. Translucent panels of elytra occupying about half of surface area.........................................................................................................................................2
 — Base of metafemoral clave just passing apex of abdomen. Translucent panels of elytra reduced to small, narrow fascia. Bolivia. Figs. 5A, 5B..................................................................................... P. nappae sp. nov.
2. Metatarsi white or creamy-white in colour. Apex of antenna reach middle of urosternite III. Translucent panels of elytra reach base of elytra..........................................................................................................3
 — Metatarsi dark chestnut in colour. Apex of antenna reach apex of urosternite III. Translucent panels of elytra do not reach base of elytra. Brazil (RJ). Fig. 9............................. P. longipennis (Zajciw, 1963) comb. nov.
 3. Elytra about 2.0 longer than width of humeri; apical lobes relatively broad and short, with broad, impunctate carina at midline. Metafemora entirely black. Vertex of head and pronotal disc without metallic reflection. Brazil (PA, RO), Peru. Figs. 3, 11............................................. P. albitarsis (Klug, 1825) comb. nov.
 — Elytra about 2.3 longer than width of humeri; apical lobes relatively long and narrow, with narrow, punctate carina at midline. Metafemora chestnut with base of peduncle yellow. Vertex of head and pronotal disc with metallic blue reflection. Brazil (ES-PR). Figs. 4, 13............ P. viridimicans (Fisher, 1952) comb. nov.
description: Published as part of Clarke, Robin O. S., 2014, Bolivian Rhinotragini VIII: new genera and species related to Pseudophygopoda Tavakilian & Peñaherrera-Leiva, 2007 (Coleoptera, Cerambycidae), pp. 341-362 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (24) on page 354, DOI: 10.1590/0031-1049.2014.54.24, http://zenodo.org/record/4674675
Hadronic decays of the tau lepton: tau -> (3 pion) nu_tau within Resonance Chiral Theory
Creators: name: Dumm, D. Gomez
name: Pich, A.
name: Portoles, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Tau decays into hadrons foresee the study of the hadronization of vector and axial-vector QCD currents, yielding relevant information on the dynamics of the resonances entering into the processes. We analyse tau -> (3 pion) nu_tau decays within the framework of the Resonance Chiral Theory, comparing this theoretical scheme with the experimental data, namely ALEPH spectral function and branching ratio. Hence we get values for the mass and on-shell width of the a_1(1260) resonance, and provide the structure functions that have been measured by OPAL and CLEO-II.
description: 7 pages, 4 figures. Talk given at the International Workshop on Quantum Chromodynamics and Experiment (QCD@Work 2005), Conversano (Bari, Italy), 16th-20th June 2005. To appear in the Proceedings
Pay cuts and morale: a test of downward nominal rigidity
Creators: name: Smith, Jennifer C.
name: Smith, Jennifer C.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Financial Economics
subject: Labor and Human Capital
subject: Wage rigidity
subject: Satisfaction

description: This paper tests the ‘morale’ theory of downward nominal wage rigidity. This theory relies on workers disliking nominal pay cuts: cuts should make workers less happy. We investigate this using panel data on individual employees’ pay and satisfaction. We con…rm that nominal cuts do make workers less happy than if their pay had not fallen. But we …nd no di¤erence in the e¤ect on happiness of cuts and pay freezes. This represents important information about the nature of wage rigidity in practice and the applicability of the morale theory. The morale theory may be able to explain generalised downward wage rigidity, but apparently fails to explain downward nominal rigidity.
On the Size and Structure of Group Cooperation
Creators: name: Haag, Matthew
name: Lagunoff, Roger
name: Haag, Matthew
name: Lagunoff, Roger
Publisher: name: Unknown
Year: 2002
Subjects: subject: Industrial Organization
subject: Research Methods/ Statistical Methods
subject: Repeated games
subject: maximal average cooperation likelihood
subject: heterogeneous discount factors
subject: returns to scale

description: This paper examines characteristics of cooperative behavior in a repeated, n-person, continuous action generalization of a Prisoner’s Dilemma game. When time preferences are heterogeneous and bounded away from one, how “much” cooperation can be achieved by an ongoing group? How does group cooperation vary with the group’s size and structure? For an arbitrary distribution of discount factors, we characterize the maximal average cooperation (MAC) likelihood of this game. The MAC likelihood is the highest average level of cooperation, over all stationary subgame perfect equilibrium paths, that the group can achieve. The MAC likelihood is shown to be increasing in monotone shifts, and decreasing in mean preserving spreads, of the distribution of discount factors. The latter suggests that more heterogeneous groups are less cooperative on average. Finally, we establish weak conditions under which the MAC likelihood exhibits increasing returns to scale when discounting is heterogeneous. That is, larger groups are more cooperative, on average, than smaller ones. By contrast, when the group has a common discount factor, the MAC likelihood is invariant to group size.
Bittacus pignatelli Navas 1932
Creators: name: Ardila-Camacho, Adrian
name: Vargas, Juan Felipe
name: Arango, Carlos Julio
name: García-García, Alexander
name: Machado, Renato Jose Pires
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Mecoptera
Bittacidae
Bittacus
Bittacus pignatelli

description: Bittacus pignatelli Navás, 1932
 (Figs. 2, 6)
 This species was previously recorded from Costa Rica and Panama (Byers & Roggero, 1992; Machado et al., 2009). In the present work, we reported this species in Colombia for the first time, with a single record from Antioquia department. This bittacid species is distinguished by its wing coloration pattern, consisting in the presence of numerous dark amber spots on the membrane inside cells and bordering crossveins (Byers, 1996). Additionally, its head, thorax and abdomen are mainly reddish brown, and femora and tibiae yellow except by their dark reddish brown apices (Byers, 1996).
 Specimen examined. Antioquia, Chigorodó, 07°39’47,7”N; 76°40’20,77”W, 36 m, 25.IV.1974, A. López, in flight (1♀ - CTNI)
description: Published as part of Ardila-Camacho, Adrian, Vargas, Juan Felipe, Arango, Carlos Julio, García-García, Alexander & Machado, Renato Jose Pires, 2017, New distributional records of Mecoptera (Insecta) from Colombia, pp. 221-229 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 57 (18) on page 224, DOI: 10.11606/0031-1049.2017.57.18, http://zenodo.org/record/4674875
First measurement of the T-violating muon polarization in the decay K^+ --> mu^+ nu gamma
Creators: name: Anisimovsky, V. V.
name: Khotjantsev, A. N.
name: Ivashkin, A. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present the result of the first measurement of the T-violating muon polarization P_T in the decay K^+ --> mu^+ nu gamma. This polarization is sensitive to new sources of CP-violation in the Higgs sector. Using data accumulated in the period 1996-98 we have obtained P_T = (-0.64 +- 1.85(stat) +- 0.10(syst))x10^{-2} which is consistent with no T-violation in this decay.
description: 11 pages, 8 figures
Smooth particle filters for likelihood evaluation and maximisation
Creators: name: Pitt, Michael K.
name: Pitt, Michael K.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: Importance Sampling
subject: Filtering
subject: Particle filter
subject: Simulation
subject: SIR
subject: State space

description: In this paper, a method is introduced for approximating the likelihood for the unknown parameters of a state space model. The approximation converges to the true likelihood as the simulation size goes to infinity. In addition, the approximating likelihood is continuous as a function of the unknown parameters under rather general conditions. The approach advocated is fast, robust and avoids many of the pitfalls associated with current techniques based upon importance sampling. We assess the performance of the method by considering a linear state space model, comparing the results with the Kalman filter, which delivers the true likelihood. We also apply the method to a non-Gaussian state space model, the Stochastic Volatility model, finding that the approach is efficient and effective. Applications to continuous time finance models are also considered. A result is established which allows the likelihood to be estimated quickly and efficiently using the output from the general auxilary particle filter.
Properties of D-mesons in nuclear matter within a self-consistent coupled-channel approach
Creators: name: Tolos, L.
name: Schaffner-Bielich, J.
name: Mishra, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The spectral density of the $D$-meson in the nuclear environment is studied within a self-consistent coupled-channel approach assuming a separable potential for the bare meson-baryon interaction. The $DN$ interaction, described through a G-matrix, generates dynamically the $Λ_c$ (2593) resonance. This resonance is the charm counterpart of the $Λ$ (1405) resonance generated from the s-wave $\bar{K}N$ interaction in the I=0 channel. The medium modification of the D-meson spectral density due to the Pauli blocking of intermediate states as well as due to the dressing of the D-mesons, nucleons and pions is investigated. We observe that the inclusion of coupled-channel effects and the self-consistent dressing of the $D$-meson results in an overall reduction of the in-medium $D$-meson changes compared to previous work which neglect those effects.
description: 23 pages, 10 figures, submitted for publication
Teacher reactions to classroom responses of male and female students
Creators: name: Sadker, David
name: Sadker, Myra
name: Baucher, Joyce
Publisher: name: American University
Year: 2023

description: The 3-year research and development project described in this paper was conducted (1) to develop new knowledge about sex equity in classroom interactions, and (2) to develop successful techniques for reducing or eliminating sex-biased interaction. Two interventions were developed to train teachers in more equitable instructional behaviors. In the qshington, D.C., metropolitan area, teachers from fourth-, sixth-, and eighth-grade classrooms were trained according to an intervention based on a microteaching model. In New England, teachers of the same grades participated in a training intervention based on a collegial problem-solving model. A comparable group of teachers composed the control- group. Overall, the sample consisted of 102 classrooms located in six school districts. All classrooms were observed for 457minute periods of active --interaction by raters trained in the Interactions for Sex Equity in Classroom Teaching Observation System (INTERSECT). Primary analysis of observational data focused on the nature of interaction patterns and the distribution of interaction between male and female students. In the second phase, differences in teacher interaction with boys and girls across treatment groups were examined. Statistically significant differences among conditions and between male and female students were consistent across all approaches to data analysis. (A summary describes selected findings about general characteristics of classroom interaction and about bias reflected in classroom interaction and treatment and control differences. The INTERSECT observation form is also appended.) (RH)
Hyper-Differential Sensitivity Analysis for Inverse Problems Constrained by Partial Differential Equations
Creators: name: Sunseri, Isaac
name: Hart, Joseph
name: Waanders, Bart van Bloemen
name: Alexanderian, Alen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: High fidelity models used in many science and engineering applications couple multiple physical states and parameters. Inverse problems arise when a model parameter cannot be determined directly, but rather is estimated using (typically sparse and noisy) measurements of the states. The data is usually not sufficient to simultaneously inform all of the parameters. Consequently, the governing model typically contains parameters which are uncertain but must be specified for a complete model characterization necessary to invert for the parameters of interest. We refer to the combination of the additional model parameters (those which are not inverted for) and the measured data states as the "complementary parameters". We seek to quantify the relative importance of these complementary parameters to the solution of the inverse problem. To address this, we present a framework based on hyper-differential sensitivity analysis (HDSA). HDSA computes the derivative of the solution of an inverse problem with respect to complementary parameters. We present a mathematical framework for HDSA in large-scale PDE-constrained inverse problems and show how HDSA can be interpreted to give insight about the inverse problem. We demonstrate the effectiveness of the method on an inverse problem by estimating a permeability field, using pressure and concentration measurements, in a porous medium flow application with uncertainty in the boundary conditions, source injection, and diffusion coefficient.
Why Are Trade Agreements Regional? A Theory based on Noncooperative Networks
Creators: name: Zissimos, Ben
name: Zissimos, Ben
Publisher: name: Unknown
Year: 2002
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: free trade
subject: globalization
subject: networks
subject: noncooperative games
subject: protection
subject: regionalization
subject: trade agreement
subject: trade block
subject: trade liberalization

description: This paper argues that free trade agreements (FTAs) are regional because, in their absence, optimal tari¤s are higher against (close) regional partners than (distant) countries outside the region. Optimal tari¤s shift rents from foreign firms to domestic citizens. Lower transport costs imply higher rents and therefore higher tari¤s. So regional FTAs have a higher payo¤ than non-regional FTAs. Therefore, only regional FTAs may yield positive gains when sponsoring a FTA is costly. To analyze equilibrium, standard theory of non-cooperative networks is extended to allow for asymmetric players. Naive best response dynamics show that ‘trade blocks can be stepping blocks’ for free trade.
Near-Infrared Integral Field Spectroscopy of Star-Forming Galaxies
Creators: name: Dale, Daniel A.
name: Roussel, Helene
name: Contursi, Alessandra
name: Helou, George
name: Dinerstein, Harriet L.
name: Hunter, Deidre A.
name: Hollenbach, David J.
name: Egami, Eiichi
name: Matthews, Keith
name: Murphy,, Thomas W.
name: Lafon, Christine E.
name: Rubin, Robert H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Palomar Integral Field Spectrograph was used to probe a variety of environments in nine nearby galaxies that span a range of morphological types, luminosities, metallicities, and infrared-to-blue ratios. For the first time, near-infrared spectroscopy was obtained for nuclear or bright HII regions in star-forming galaxies over two spatial dimensions (5.7"x10.0") in the [FeII] (1.257um), [FeII] (1.644um), Paschen beta (1.282um), H2 (2.122um), and Brackett gamma (2.166um) transition lines. These data yield constraints on various characteristics of the star-forming episodes in these regions, including their strength, maturity, spatial variability, and extinction. The HII regions stand out from the nuclei. Unlike observations of nuclear regions, HII region near-infrared observations do not show a spatial coincidence of the line and continuum emission; the continuum and line maps of HII regions usually show distinct and sometimes spatially-separated morphologies. Gauging from Paschen beta and Brackett gamma equivalent widths and luminosities, the HII regions have younger episodes of star formation than the nuclei and more intense radiation fields. Near-infrared line ratio diagnostics suggest that HII regions have "purer" starbursting properties. The correlation between ionizing photon density and mid-infrared color is consistent with the star formation activity level being higher for HII regions than for nuclei. And though the interpretation is complicated, on a purely empirical basis the HII regions show lower Fe1+ abundances than nuclei by an order of magnitude.
description: 37 pages including 13 figures; accepted for publication in the Astrophysical Journal
Effect of energy losses and interactions during diffusive shock acceleration: applications to SNR, AGN and UHE Cosmic Rays
Creators: name: Protheroe, R. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I discuss the shape of the high energy end of the spectrum of particles arising from diffusive shock acceleration in the presence of (i) additional diffusive escape from the accelerator, (ii) continuous energy losses, (iii) energy changes arising from interactions. The form of the spectrum near cut-off is sensitive to these processes as well as to the momentum-dependence of the diffusion coefficients and the compression ratio, and so the spectrum of any radiation emitted by the accelerated particles may reflect the physical conditions of the acceleration region. Results presented in this paper have applications in interpreting the spectral energy distributions of many types of astrophysical object including supernova remnants (SNR), active galactic nuclei (AGN) and acceleration sources of ultra high energy cosmic rays (UHE CR). Except for extremely nearby sources, spectral features imprinted on the spectrum of UHE CR during the acceleration process will be largely eroded during propagation, but the spectrum of UHE neutrinos produced in interactions of UHE CR with radiation, both during cosmic ray acceleration and subsequent propagation through the cosmic microwave background radiation, contains sufficient information to determine the cut-off momentum of the UHE CR just after acceleration for reasonable assumptions. Observation of these UHE neutrinos by the Pierre Auger Observatory may help in identifying the sources of the highest energy cosmic rays.
description: 27 pages, 10 figures, submitted to Astroparticle Physics
Teacher reactions to classroom responses of male and female students
Creators: name: Sadker, David
name: Sadker, Myra
name: Baucher, Joyce
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3904
subject: Specialist studies in education
classificationCode: 4405
subject: Gender studies

description: The 3-year research and development project described in this paper was conducted (1) to develop new knowledge about sex equity in classroom interactions, and (2) to develop successful techniques for reducing or eliminating sex-biased interaction. Two interventions were developed to train teachers in more equitable instructional behaviors. In the qshington, D.C., metropolitan area, teachers from fourth-, sixth-, and eighth-grade classrooms were trained according to an intervention based on a microteaching model. In New England, teachers of the same grades participated in a training intervention based on a collegial problem-solving model. A comparable group of teachers composed the control- group. Overall, the sample consisted of 102 classrooms located in six school districts. All classrooms were observed for 457minute periods of active --interaction by raters trained in the Interactions for Sex Equity in Classroom Teaching Observation System (INTERSECT). Primary analysis of observational data focused on the nature of interaction patterns and the distribution of interaction between male and female students. In the second phase, differences in teacher interaction with boys and girls across treatment groups were examined. Statistically significant differences among conditions and between male and female students were consistent across all approaches to data analysis. (A summary describes selected findings about general characteristics of classroom interaction and about bias reflected in classroom interaction and treatment and control differences. The INTERSECT observation form is also appended.) (RH)
title: Electrode measurements of the net charge on muscle proteins
Creators: name: Bryson, Elzbieta Anna
Publisher: name: The Open University
Year: 1997

description: Electrode techniques for measuring Donnan potentials in protein solutions were studied and applied to elucidate the effect of methylation on the net charge of heavy meromyosin (HMM) and the effect of Ca2+ on the net charge of the thin filament proteins.

 Drifts in potentials, observed for macroelectrodes, were examined and their cause established to be KC1 leakage out of electrodes. The microelectrode technique was applied to protein solutions and microelectrodes with resistance less than 1 MΩ were used: the conditions for manufacturing and maintaining electrodes functional were established.

 HMM was isolated (from rabbit muscle) and methylated; the modification was verified by amino acid analysis. ATPase activity of methylated HMM was found to be significantly elevated in the presence of Ca2+ and decreased in the presence of EDTA with respect to the activity of the native protein. Values of the net charge of both proteins were determined at pH 6.7 and no significant difference was found between them. Calculations of the theoretical charge of lysine and Nͼ-dimethyllysine were performed which indicated only 0.5% difference at pH 6.7.

 F-actin, tropomyosin-troponin (Tm-tn) and reconstituted thin filaments (RTFs) were isolated from rabbit muscle. Conditions for preserving the binding between F-actin and Tm-tn were established. Net charges of F-actin, Tm-tn, RTFs and BSA (control) were measured in solutions of pCa 3.2-8.7 at ionic strength 0.02 M and pH 7.0. Significant decrease in the negative charge of the RTFs, Tm-tn and F-actin was observed with increasing concentrations of free Ca2+, between pCa 6.5 and 3 approximately.

 Values of the molecular and specific charge at pH 7.0 and the isoelectric point were calculated from the amino acid sequences of the main muscle proteins.
The Properties of Some Goodness-of-Fit Tests
Creators: name: Boero, Gianna
name: Smith, Jeremy
name: Wallis, Kenneth F.
name: Boero, Gianna
name: Smith, Jeremy
name: Wallis, Kenneth F.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: Pearson’s Goodness-of-fit test
subject: Component tests
subject: Distributional assumptions
subject: Monte Carlo
subject: Normality
subject: Nonequiprobable partitions

description: The properties of Pearson’s goodness-of-fit test, as used in density forecast evaluation, income distribution analysis and elsewhere, are analysed. The components-of-chi-squared or “Pearson analog” tests of Anderson (1994) are shown to be less generally applicable than was originally claimed. For the case of equiprobable classes, where the general components tests remain valid, a Monte Carlo study shows that tests directed towards skewness and kurtosis may have low power, due to differences between the class boundaries and the intersection points of the distributions being compared. The power of individual component tests can be increased by the use of nonequiprobable classes.
The cost of sex bias in schools and society
Creators: name: Sadker, David
name: Sadker, Myrna
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3904
subject: Specialist studies in education
classificationCode: 4405
subject: Gender studies

description: The losses that both girls and boys suffer because of sex bias in society and in education are summarized in this report. For both girls and boys, statements based on research in these fields are :listed in the academic, psychological and physical realms, and career and family relationships.
A BENCHmark for sustainability : an investigation into sustainable art
Creators: name: Schroeder, Jeff
name: Kim, Jin
name: Van Horn, Jeremy
name: Salli, Rachelle
Publisher: name: The University of British Columbia
Year: 2012

description: The new UBC Student Union Building (SUB) is projected to achieve a LEED Platinum+ standing upon completion. This world-renowned award acknowledges accomplishments in design and implementation of advanced eco-friendly buildings - a notable feat that SUB Design Committee would like to share with the public. As such, this report proposes that the Design Committee commission an inspiring art piece to go on display in the atrium of the new Student Union Building. This investigation assesses the feasibility and sustainability of implementing such an art piece made from recycled items. In keeping with the Design Committee’s goal of inspiration through human connection it is proposed that the design resemble a ubiquitous everyday object – something that will seamlessly transcend the field from action to reaction. Specifically, this entails the simple daily process of recycling and its integration into one’s surroundings. This art piece intends to spark thinking amongst its onlookers into making the connection between the consumption of materials and their direct effect onto our surroundings, our planet, and future. Thus, it is intended that such inspiration be captured through the exhibition of a park bench. Justification of this design idea is conducted through a triple bottom line analysis that examines the environmental, economic and social impacts of commissioning a bench made from recycled materials. Based on the generated results, this report recommends that the inspiring art piece reflect the following three attributes: 1. The art piece will resemble a park bench and reflects a discernible amount of uniqueness. The design of the bench will be selected though a campus wide design contest. 2. The materials used will comprise of 100% recycled plastic. 3. The size of the park bench will be approximately to scale (2m x 1m x 2m). Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”