cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Proper-Motion Membership Tests for Four Planetary Nebulae in Galactic Globular Clusters
Creators: name: Bond, Howard E.
name: Bellini, Andrea
name: Sahu, Kailash C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Four planetary nebulae (PNe) are considered to be probable or possible members of Galactic globular clusters (GCs). These are Ps 1 = K648 in M15, GJJC 1 = IRAS 18333-2357 in M22, JaFu 1 in Palomar 6, and JaFu 2 in NGC 6441. In addition to lying close to the host GCs on the sky, these PNe have radial velocities that are consistent, within the errors and stellar velocity dispersions, with cluster membership. The remaining membership criterion is whether the proper motions (PMs) of the central stars are in agreement with those of the host clusters. We have carried out the PM test for all four PNe. Two of the central stars--those of Ps 1 and GJJC 1--have PMs listed in the recent Gaia Data Release 2 (DR2). We updated the PM of the Ps 1 central star to a more precise value using archival Hubble Space Telescope (HST) frames. Both PMs are statistically consistent with cluster membership. For the other two PNe, we used archival HST images to derive the PMs of their nuclei. For JaFu 2, there are HST images at several epochs, and the measured PM of the nucleus is in excellent agreement with that of the host cluster. For JaFu 1 the available archival HST images are less optimal and the results are less conclusive; the measured PM for the central star is marginally consistent with cluster membership, but additional astrometric observations are desirable for a more robust membership test.
description: Revised version, accepted by Astronomical Journal
Thyroid hormone facilitates in vitro decidualization of human endometrial stromal cells via thyroid hormone receptors
Creators: name: Kakita-Kobayashi, Maiko
Publisher: name: figshare
Year: 2020
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine
subject: 111404 Reproduction
subject: FOS: Medical biotechnology
subject: 160302 Fertility
subject: FOS: Sociology

description: Supplementary Information for endocrinology
Characterization of plastic deformation and chemical reaction in titanium-polytetrafluoroethylene mixture
Creators: name: Davis, Jeffery Jon
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: The subject of this dissertation is the deformation process of a single metal - polymer system (titanium - polytetrafluoroethylene) and how this process leads to initiation of chemical reaction. Several different kinds of experiments were performed to characterize the behavior of this material to shock and impact. These mechanical conditions induce a rapid plastic deformation of the sample. All of the samples tested had an initial porosity which increased the plastic flow condition. It is currently believed that during the deformation process two important conditions occur: removal of the oxide layer from the metal and decomposition of the polymer. These conditions allow for rapid chemical reaction. The research from this dissertation has provided insight into the complex behavior of plastic deformation and chemical reactions in titanium - polytetrafluoroethylene (PTFE, Teflon). A hydrodynamic computational code was used to model the plastic flow for correlation with the results from the experiments. The results from this work are being used to develop an ignition and growth model for metal/polymer systems. Three sets of experiments were used to examine deformation of the 80% Ti and 20% Teflon materials: drop-weight, gas gun, and split-Hopkinson pressure bar. Recovery studies included post shot analysis of the samples using x-ray diffraction. Lagrangian hydrocode DYNA2D modeling of the drop-weight tests was performed for comparison with experiments. One of the reactions know to occur is Ti + C $\to$ TiC (s) which results in an exothermic release. However, the believed initial reactions occur between Ti and fluorine which produces $\rm Ti\sb{x}F\sb{y}$ gases. The thermochemical code CHEETAH was used to investigate the detonation products and concentrations possible during Ti - Teflon reaction. CHEETAH shows that the Ti - fluorine reactions are thermodynamically favorable. This research represents the most comprehensive to date study of deformation induced chemical reaction in metal/polymers.
Alternative Mortgages in Nonmetro America
Creators: name: Meeks, Carol B.
name: Hession, John C.
name: Meeks, Carol B.
name: Hession, John C.
Publisher: name: Unknown
Year: 1985
Subjects: Agricultural Finance
Financial Economics

description: About 10 percent of nonmetro home buyers have alternative mortgages on their homes. These mortgages can have variable interest rates, variable monthly payments, and variable payback schedules. Borrowers who use such mortgages generally have higher incomes than borrowers with conventional mortgages, buy more expensive houses, and pay a slightly larger percentage of income on mortgage payments.
A double inequality for completely monotonic degree of a remainder for an asymptotic expansion of the trigamma function
Creators: name: Qi, Feng
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: Primary 33B15, Secondary 26A48, 26A51, 30E15, 34E05, 44A10

description: In the paper, the author presents a double inequality for completely monotonic degree of a remainder for an asymptotic expansion of the trigamma function. This result partially confirms one in a series of conjectures on completely monotonic degrees of remainders of asymptotic expansions for the logarithm of the gamma function and for polygamma functions.
description: 7 pages
Coherent sheaves on generic compact tori
Creators: name: Verbitsky, Misha
Publisher: name: arXiv
Year: 2003
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let T be a compact complex torus, dim T>2. We show that the category of coherent sheaves on T is independent of the choice of the complex structure, if this complex structure is generic. The proof is independent of math.AG/0205210, where the same result was proven for K3 surfaces and even-dimensional tori.
description: 24 pages
Low-frequency noise parameter extraction method for single layer graphene FETs
Creators: name: Mavredakis, Nikolaos
name: Wei, Wei
name: Pallecchi, Emiliano
name: Vignaud, Dominique
name: Happy, Henri
name: Cortadella, Ramon Garcia
name: Schaefer, Nathan
name: Calia, Andrea Bonaccini
name: Garrido, Jose Antonio
name: Jimenez, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: In this paper, a detailed parameter extraction methodology is proposed for low-frequency noise (LFN) in single layer (SL) graphene transistors (GFETs) based on a recently established compact LFN model. Drain current and LFN of two short channel back-gated GFETs (L=300, 100 nm) were measured at lower and higher drain voltages, for a wide range of gate voltages covering the region away from charge neutrality point (CNP) up to CNP at p-type operation region. Current-voltage (IV) and LFN data were also available from a long channel SL top solution-gated (SG) GFET (L=5 um), for both p- and n-type regions near and away CNP. At each of these regimes, the appropriate IV and LFN parameters can be accurately extracted. Regarding LFN, mobility fluctuation effect is dominant at CNP and from there the Hooge parameter aH can be extracted while the carrier number fluctuation contribution which is responsible for the well-known M-shape bias dependence of output noise divided by squared drain current, also observed in our data, makes possible the extraction of the NT parameter related to the number of traps. In the less possible case of a Lambda-shape trend, NT and aH can be extracted simultaneously from the region near CNP. Away from CNP, contact resistance can have a significant contribution to LFN and from there the relevant parameter SDR^2 is defined. The LFN parameters described above can be estimated from the low drain voltage region of operation where the effect of Velocity Saturation (VS) mechanism is negligible. VS effect results in the reduction of LFN at higher drain voltages and from there the IV parameter hOmega which represents the phonon energy and is related to VS effect can be derived both from drain current and LFN data.
Transport phenomena in millisecond catalytic wall reactors for hydrogen production
Creators: name: Chen, Junjie
Publisher: name: figshare
Year: 2022
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: Transfer of heat, whether in heating a building or a kettle of water or in a natural condition such as a thunderstorm, usually involves all convection, thermal radiation, and conduction processes. Heat is energy that is transferred from one body to another as the result of a difference in temperature. If two bodies at different temperatures are brought together, energy is transferred, namely heat flows, from the hotter body to the colder. The effect of this transfer of energy usually, but not always, is an increase in the temperature of the colder body and a decrease in the temperature of the hotter body. A substance may absorb heat without an increase in temperature by changing from one physical state or phase to another physical state or phase. Contributor: Junjie Chen, ORCID: 0000-0002-5022-6863, E-mail address: koncjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China
Characterization of plastic deformation and chemical reaction in titanium-polytetrafluoroethylene mixture
Creators: name: Davis, Jeffery Jon
Publisher: name: American University
Year: 2023

description: The subject of this dissertation is the deformation process of a single metal - polymer system (titanium - polytetrafluoroethylene) and how this process leads to initiation of chemical reaction. Several different kinds of experiments were performed to characterize the behavior of this material to shock and impact. These mechanical conditions induce a rapid plastic deformation of the sample. All of the samples tested had an initial porosity which increased the plastic flow condition. It is currently believed that during the deformation process two important conditions occur: removal of the oxide layer from the metal and decomposition of the polymer. These conditions allow for rapid chemical reaction. The research from this dissertation has provided insight into the complex behavior of plastic deformation and chemical reactions in titanium - polytetrafluoroethylene (PTFE, Teflon). A hydrodynamic computational code was used to model the plastic flow for correlation with the results from the experiments. The results from this work are being used to develop an ignition and growth model for metal/polymer systems. Three sets of experiments were used to examine deformation of the 80% Ti and 20% Teflon materials: drop-weight, gas gun, and split-Hopkinson pressure bar. Recovery studies included post shot analysis of the samples using x-ray diffraction. Lagrangian hydrocode DYNA2D modeling of the drop-weight tests was performed for comparison with experiments. One of the reactions know to occur is Ti + C $\to$ TiC (s) which results in an exothermic release. However, the believed initial reactions occur between Ti and fluorine which produces $\rm Ti\sb{x}F\sb{y}$ gases. The thermochemical code CHEETAH was used to investigate the detonation products and concentrations possible during Ti - Teflon reaction. CHEETAH shows that the Ti - fluorine reactions are thermodynamically favorable. This research represents the most comprehensive to date study of deformation induced chemical reaction in metal/polymers.
Modeling principal-agent feedback in public policy
Creators: name: Deitch, Jonathan D.
Publisher: name: American University
Year: 2023

description: Of the many debates among students of American politics, no one strikes at the principles of democratic governance more than the controversy over the role of the bureaucracy in public policy decisionmaking, particularly for regulation policies. The primary positive issues revolve around identifying "discretionary" bureaucratic action in the conduct of public policy, estimating the extent to which discretion characterizes the activity of a bureaucratic agency, and determining how the three Constitutionally-specified branches of government (the President, the Congress and the Courts) influence agency behavior. The extant empirical research on the subject has focussed mainly on the influence or control exercised by political principals and/or bureaucratic agents. However, as Hammond and Knott (1992) demonstrate, inferences of institutional control based on empirical findings will be incomplete: empirical models cannot distinguish among substantively different implications of no significant relationship between principal and agent. Further, if both bureaucratic autonomy and political control are a matter of degree, as implied by Hammond and Knott and confirmed in this dissertation, then typologies which attempt to classify political-bureaucratic on using hard-and-fast criteria are of questionable utility. Finally, these models contain specification errors which render them inaccurate representations of the institutionally-grounded public policy decision-making process. In light of this shortcoming, this dissertation serves two purposes. The first is to rectify the specification errors of previous empirical research and construct a more comprehensive empirical model of the policy maintenance process. The second is to redirect empirical policy research toward the more practical aspects ofinstitutional decisionmaking given the problems associated with inferring dominance or control from empirical models. As my findings indicate, the factors that influence both political and bureaucratic decisions are complex enough to resist simple, discrete classification. Further, my findings challenge the positive theoretical framework, the principal-agent model, upon which most formal and empirical models of political-bureaucratic interaction are based.
Modeling principal-agent feedback in public policy
Creators: name: Deitch, Jonathan D.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: Of the many debates among students of American politics, no one strikes at the principles of democratic governance more than the controversy over the role of the bureaucracy in public policy decisionmaking, particularly for regulation policies. The primary positive issues revolve around identifying "discretionary" bureaucratic action in the conduct of public policy, estimating the extent to which discretion characterizes the activity of a bureaucratic agency, and determining how the three Constitutionally-specified branches of government (the President, the Congress and the Courts) influence agency behavior. The extant empirical research on the subject has focussed mainly on the influence or control exercised by political principals and/or bureaucratic agents. However, as Hammond and Knott (1992) demonstrate, inferences of institutional control based on empirical findings will be incomplete: empirical models cannot distinguish among substantively different implications of no significant relationship between principal and agent. Further, if both bureaucratic autonomy and political control are a matter of degree, as implied by Hammond and Knott and confirmed in this dissertation, then typologies which attempt to classify political-bureaucratic on using hard-and-fast criteria are of questionable utility. Finally, these models contain specification errors which render them inaccurate representations of the institutionally-grounded public policy decision-making process. In light of this shortcoming, this dissertation serves two purposes. The first is to rectify the specification errors of previous empirical research and construct a more comprehensive empirical model of the policy maintenance process. The second is to redirect empirical policy research toward the more practical aspects ofinstitutional decisionmaking given the problems associated with inferring dominance or control from empirical models. As my findings indicate, the factors that influence both political and bureaucratic decisions are complex enough to resist simple, discrete classification. Further, my findings challenge the positive theoretical framework, the principal-agent model, upon which most formal and empirical models of political-bureaucratic interaction are based.
Distribution of injected power fluctuations in electroconvection
Creators: name: Tóth-Katona, Tibor
name: Gleeson, James T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We report on the distribution spectra of the fluctations in the amount of power injected into a liquid crystal undergoing electroconvective flow. The probability distribution functions (PDFs) of the fluctuations as well as the magnitude of the fluctuations have been determined in a wide range of imposed stress both for `unconfined' and `confined' flow geometries. These spectra are compared to those found in other systems held far from equilibrium, and find that in certain conditions we obtain the ''universal'' PDF form reported in [Phys. Rev. Lett. {\bf 84}, 3744 (2000)]. Moreover, the PDF approaches this universal form via an interesting mechanism whereby the distribution's negative tail evolves towards form in a different manner than the positive tail.
description: 13 pages, 3 figures
Generative ODE Modeling with Known Unknowns
Creators: name: Linial, Ori
name: Ravid, Neta
name: Eytan, Danny
name: Shalit, Uri
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In several crucial applications, domain knowledge is encoded by a system of ordinary differential equations (ODE), often stemming from underlying physical and biological processes. A motivating example is intensive care unit patients: the dynamics of vital physiological functions, such as the cardiovascular system with its associated variables (heart rate, cardiac contractility and output and vascular resistance) can be approximately described by a known system of ODEs. Typically, some of the ODE variables are directly observed (heart rate and blood pressure for example) while some are unobserved (cardiac contractility, output and vascular resistance), and in addition many other variables are observed but not modeled by the ODE, for example body temperature. Importantly, the unobserved ODE variables are known-unknowns: We know they exist and their functional dynamics, but cannot measure them directly, nor do we know the function tying them to all observed measurements. As is often the case in medicine, and specifically the cardiovascular system, estimating these known-unknowns is highly valuable and they serve as targets for therapeutic manipulations. Under this scenario we wish to learn the parameters of the ODE generating each observed time-series, and extrapolate the future of the ODE variables and the observations. We address this task with a variational autoencoder incorporating the known ODE function, called GOKU-net for Generative ODE modeling with Known Unknowns. We first validate our method on videos of single and double pendulums with unknown length or mass; we then apply it to a model of the cardiovascular system. We show that modeling the known-unknowns allows us to successfully discover clinically meaningful unobserved system parameters, leads to much better extrapolation, and enables learning using much smaller training sets.
Rural Banks Reflect The Local Economy
Creators: name: Mikesell, James J.
name: Mikesell, James J.
Publisher: name: Unknown
Year: 1985
Subjects: Agricultural Finance
Community/Rural/Urban Development
Financial Economics

description: Rural banks are often accused of having conservative lending practices that stifle community growth. But the bank operating statistics supporting that contention may really just reflect a lack of alternative lending opportunities. The data assembled here demonstrate that rural banks' lending is aimed chiefly at their local market, especially local farmers. Furthermore, bank support of agriculture, one of the largest industries in their service areas, far from being too conservative, may jeopardize bank solvency.
Heterogeneous reaction rates in millisecond catalytic wall reactors for hydrogen production
Creators: name: Chen, Junjie
Publisher: name: figshare
Year: 2022
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: A reaction rate, in chemistry, is the speed at which a chemical reaction proceeds. It is often expressed in terms of either the concentration (amount per unit volume) of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time. Alternatively, it may be defined in terms of the amounts of the reactants consumed or products formed in a unit of time. Chemical reactions proceed at vastly different speeds depending on the nature of the reacting substances, the type of chemical transformation, the temperature, and other factors. In general, reactions in which atoms or ions (electrically charged particles) combine occur very rapidly, while those in which covalent bonds (bonds in which atoms share electrons) are broken are much slower. For a given reaction, the speed of the reaction will vary with the temperature, the pressure, and the amounts of reactants present. Reactions usually slow down as time goes on because of the depletion of the reactants. In some cases the addition of a substance that is not itself a reactant, called a catalyst, accelerates a reaction. The rate constant, or the specific rate constant, is the proportionality constant in the equation that expresses the relationship between the rate of a chemical reaction and the concentrations of the reacting substances. The measurement and interpretation of reactions constitute the branch of chemistry known as chemical kinetics. Contributor: Junjie Chen, ORCID: 0000-0002-5022-6863, E-mail address: koncjj@gmail.com, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China
1909-05-29 G.V. Black to McKay
Creators: name: Black, G. V. (Greene Vardiman), 1836-1915.
Publisher: name: DigitalHub. Galter Health Sciences Library & Learning Center
Year: 1909
Subjects: Dental Fluorosis
Tooth Abnormalities
Fluoridation
Colorado

description: Title: G.V. Black to McKay Container: c02 id: level:
Teaching Arabic for specific purposes in America
Creators: name: Diab, Awatif Mohamed
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 47
subject: Language, communication and culture
classificationCode: 4703
subject: Language studies

description: The purpose of the study is to examine whether or not the teaching of ASP, compared to teaching conventional Arabic, will motivate the learners and enhance their performance. The idea of conducting such a study is motivated by the following factors: (1) The lack of literature in the area of teaching Arabic as a second or foreign language, which resulted in the lack of materials pertaining to the teaching of Arabic. (2) The realization of the fact that the material used is conventional and not relevant to learners' needs and interests. (3) The increasing number of learners of Arabic as part of the pluralistic society that has developed in America which creates the need for learning foreign languages such as Arabic. (4) The globalization of American education because of the interconnection and interculturalism that characterizes every aspect of life today and made a pressing need for learning active languages among which is Arabic. The study assumed that there are five need-specific purposes for learning Arabic in America and accordingly categorized ASP into five categories including Arabic for diplomacy, business, religion, occupation, and culture. The quasi-experimental research design chosen for this study involved the use of two treatment groups and two control groups. These groups were first pre-tested and then post-tested. A model which represents the five subcategories of Arabic was developed and used to design a course of five units taught to the treatment groups for ten weeks, whereas the control groups continued learning conventional Arabic. Results from the pre-test and post-test were compared using T-test which indicated that the mean average scores of the treatment groups is significantly higher than that of the control groups. These findings may be applicable to other institutes offering Arabic classes and other foreign languages, and imply that great attention should be given to learners' needs and purposes in materials development. Accordingly, the study provided guidelines and recommendations for teachers, curriculum/materials developers on how to design and select the appropriate courses for ASP.
title: Molecular analysis of DNA damage induced by a novel trinuclear platinum complex (BBR 3464)
Creators: name: Collella, Gennaro Giovanni Domenico
Publisher: name: The Open University
Year: 2001

description: We evaluated the activity of the trinuclear platinum complex BBR 3464 in two human ovarian carcinoma cell lines (OAW42, A2780) and in their cisplatin-resistant counterparts (OAW42Mer, A2780cp8). An increased cytotoxic potency of BBR 3464 compared to cisplatin was generally observed, an a collateral sensitivity or a very modest cross-resistance to BBR 3464 was found in OAW42Mer and A2780cp8 cell lines, respectively. Loss of mismatch repair proteins (hMLHl, hPMS2) or overexpression of nucleotide excision repair proteins (ERCC1) was not detrimental for the cellular sensitivity to the trinuclear platinum complex. BBR 3464 intracellular accumulation and DNA-bound platinum were consistently higher than those observed with cisplatin. After exposure to BBR 3464 and cisplatin of purified DNA or intact cells, a similar sequence preference of DNA damage was observed. Conversely, interesting differences in the kinetics of formation and removal of DNA lesions at the single-gene (N-ras) level were observed between the two drugs.

 The interference exerted by BBR 3464 with cell cycle progression and its ability to induce apoptosis were evaluated in OAW42 and OAW42Mer cell lines. Flow cytometric experiments indicated that in the two cell lines BBR 3464 was able to induce a persistent G2M block whereas cisplatin caused an initial accumulation of cells in the S phase followed by an increase in the G2M cell fraction. Exposure to IC50 drug concentrations induced apoptosis in both cell lines. However, the percentage of cells with an apoptotic nuclear morphology was slightly higher after cisplatin than BBR 3464 treatment in OAW42 cells, whereas the opposite pattern was observed in OAW42Mer cells. Degradation of the nuclear lamin B was detected in OAW42 cells after exposure to each drug whereas in OAW42Mer cells the cleavage was only appreciable after BBR 3464 exposure. In OAW42 cells the mitochondrial membrane potential (ɅѰmt) was not affected by the two drugs, whereas in the OAW42Mer cell line a marked (ɅѰmt) reduction was observed only after exposure to BBR 3464.

 Overall, the results would suggest that the collateral sensitivity to BBR 3464 observed in the OAW42Mer cell line might be attributable to the ability of this drug to modify DNA differently from that of cisplatin and, as a consequence, to induce different cellular responses to DNA damage such as the triggering of specific apoptotic pathways.
Teaching Arabic for specific purposes in America
Creators: name: Diab, Awatif Mohamed
Publisher: name: American University
Year: 2023

description: The purpose of the study is to examine whether or not the teaching of ASP, compared to teaching conventional Arabic, will motivate the learners and enhance their performance. The idea of conducting such a study is motivated by the following factors: (1) The lack of literature in the area of teaching Arabic as a second or foreign language, which resulted in the lack of materials pertaining to the teaching of Arabic. (2) The realization of the fact that the material used is conventional and not relevant to learners' needs and interests. (3) The increasing number of learners of Arabic as part of the pluralistic society that has developed in America which creates the need for learning foreign languages such as Arabic. (4) The globalization of American education because of the interconnection and interculturalism that characterizes every aspect of life today and made a pressing need for learning active languages among which is Arabic. The study assumed that there are five need-specific purposes for learning Arabic in America and accordingly categorized ASP into five categories including Arabic for diplomacy, business, religion, occupation, and culture. The quasi-experimental research design chosen for this study involved the use of two treatment groups and two control groups. These groups were first pre-tested and then post-tested. A model which represents the five subcategories of Arabic was developed and used to design a course of five units taught to the treatment groups for ten weeks, whereas the control groups continued learning conventional Arabic. Results from the pre-test and post-test were compared using T-test which indicated that the mean average scores of the treatment groups is significantly higher than that of the control groups. These findings may be applicable to other institutes offering Arabic classes and other foreign languages, and imply that great attention should be given to learners' needs and purposes in materials development. Accordingly, the study provided guidelines and recommendations for teachers, curriculum/materials developers on how to design and select the appropriate courses for ASP.
Oil Stock Discovery and Dutch Disease
Creators: name: Hamilton, Kirk
name: Hartwick, John
name: Hamilton, Kirk
name: Hartwick, John
Publisher: name: Unknown
Year: 2008
Subjects: subject: Financial Economics
subject: Dutch disease
subject: resource discovery
subject: invariant earnings

description: We set out a model of a small open economy exporting oil and a traditional ex- portable in return for produced capital. The small open economy also has local produc- tion of a non-traded good. We rst observe that the size of the traditional export sector declines with an exogenous increase in the countrys oil stock. Strong Dutch disease (SDD) nvolves a net diminution in produced capital in use in the small open econ- omy after the oil discovery shock. SDD turns on the exportable sector being relatively capital intensive.
Economic structure and investment under uncertainty
Creators: name: Gunter, Bernhard
Publisher: name: American University
Year: 2023

description: This dissertation combines the structural approach of development economics with the more recent real option theory of investment under uncertainty. First, the main patterns of development are established. Based on data for 93 countries from 1970-94, it is shown that there exist robust relationships between development and 34 structural indicators. Second, using a similar cross-country analysis, it is shown that economic structures of less developed countries increase macroeconomic uncertainty. One whole chapter is used to define macroeconomic uncertainty and to illustrate the crucial difference between volatility and uncertainty. Third, using panel data, it is demonstrated that macroeconomic uncertainty has a significantly negative impact on gross domestic investment. Fourth, based on the recent empirical literature on the relationship between investment and development, it is concluded that investment usually increases development. Finally, the results of the four parts are connected with each other. Conclusions are drawn on implications for economic policy and future research.
Spin-orbit induced backflow in neutron matter with auxiliary field diffusion Monte Carlo
Creators: name: Brualla, L.
name: Fantoni, S.
name: Sarsa, A.
name: Schmidt, K. E
name: Vitiello, S. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The energy per particle of zero-temperature neutron matter is investigated, with particular emphasis on the role of the $\vec L\cdot\vec S$ interaction. An analysis of the importance of explicit spin--orbit correlations in the description of the system is carried out by the auxiliary field diffusion Monte Carlo method. The improved nodal structure of the guiding function, constructed by explicitly considering these correlations, lowers the energy. The proposed spin--backflow orbitals can conveniently be used also in Green's Function Monte Carlo calculations of light nuclei.
description: 4 pages, 1 figure
1909-11-01 G.V. Black to McKay
Creators: name: Black, G. V. (Greene Vardiman), 1836-1915.
Publisher: name: DigitalHub. Galter Health Sciences Library & Learning Center
Year: 1909
Subjects: Dental Fluorosis
Tooth Abnormalities
Fluoridation
Colorado

description: Title: G.V. Black to McKay Container: c02 id: level:
Diversifying Smalltown Economies with Nonmanufacturing Industries
Creators: name: Smith, Stephen M.
name: Smith, Stephen M.
Publisher: name: Unknown
Year: 1985
Subjects: Community/Rural/Urban Development
Labor and Human Capital

description: The developing economies of small towns and rural areas need more than just factories. Service industries, too, can generate employment and local income. They are usually cleaner than factories and smaller, so they blend in with the local economy rather than dominating it. This article, based on a survey of service firms in nonmetro Wisconsin, describes what such firms can contribute to the local economy and what they look for in an area when they move.
Geophysical Modelling of the Middle America Trench using GMT
Creators: name: Lemenkova, Polina
Publisher: name: figshare
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: 90901 Cartography
subject: FOS: Environmental engineering
subject: Geography
subject: 80308 Programming Languages
subject: FOS: Computer and information sciences
subject: 80110 Simulation and Modelling

description: The study is focused on the geomorphological analysis of the Guatemala Trench, East Pacific Ocean. Research goal is to find geometric variations in western and eastern flanks of the trench and correlation of the submarine geomorphology with geologic settings and seismicity through numerical and graphical modelling. Methods include GMT based analysis of the bathymetry, geomorphic shape and surface trends in topography and gravity grids. Dataset contains raster grids on bathymetry, gravity, geoid and geological layers. Technical workflow is following: 1) Bathymetric mapping by modules ('grdcut', 'grdimage'); 2) Datasets visualizing and analysis, 3) Topographic and gravimetric surface modelling by ASCII data; 4) Cartographic mapping ('psbasemap', 'psxy', 'grdcontour') 4) 3D-mesh modelling; 5) Automatically digitized orthogonal cross-stacked profiles (‘grdtrack’); 6) Visualizing curvature trends (‘trend1d’); 7) statistical histograms. Results reveal unevenness in the structure of the submarine landforms. Modelling cross-section profiles highlighted depth variation at different parts of the transects and seafloor segments. Geomorphic structure has straight shape form of the slopes with steep oceanward forearc. Its geometry has steep and strait shape which correlates with seismicity. Depth samples vary: -3000 to -6200 m, seafloor is 3-5 km wide. Trench has symmetric accurate 'V- shaped' geometric form for the segment of -30 to -30 km. Oceanward side slope increases towards continental shelf, left flank stabilizes in depths at -50 km from the trench axis, deepens at -50 to 0 m, decreases at -3,200 to -5,800. Oceanward flank gradient varies: slope steepness of 35,63° at 0-20 km, 42,17° at 20-40 km, 44° at 40-60km. Left flank has 43,24° at 0-24 km, 28,33° at 24-40 km, 14° at 40-60 km, 1,13° at 60-200 km. Marine vertical gravity correlates with tectonic slab contours (20-30 mGal on the trench slopes). The study demonstrated effective GMT-based framework with a multi-disciplinary scope that combined cartographic methods of modelling deep-sea trench profiles with geological, bathymetric and geophysical analysis. Technical application of the advanced cartographic solutions and high quality mapping by GMT demonstrated its functionality for data analysis and effectiveness of the geoinformation processing. Proposed techniques and workflow methodology provided framework for geological mapping and can be applied in further similar research.
Economic structure and investment under uncertainty
Creators: name: Gunter, Bernhard
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: This dissertation combines the structural approach of development economics with the more recent real option theory of investment under uncertainty. First, the main patterns of development are established. Based on data for 93 countries from 1970-94, it is shown that there exist robust relationships between development and 34 structural indicators. Second, using a similar cross-country analysis, it is shown that economic structures of less developed countries increase macroeconomic uncertainty. One whole chapter is used to define macroeconomic uncertainty and to illustrate the crucial difference between volatility and uncertainty. Third, using panel data, it is demonstrated that macroeconomic uncertainty has a significantly negative impact on gross domestic investment. Fourth, based on the recent empirical literature on the relationship between investment and development, it is concluded that investment usually increases development. Finally, the results of the four parts are connected with each other. Conclusions are drawn on implications for economic policy and future research.
Real spin and pseudospin topologies in the noncentrosymmetric topological nodal-line semimetal CaAgAs
Creators: name: Hirose, Hishiro T.
name: Terashima, Taichi
name: Wada, Taichi
name: Matsushita, Yoshitaka
name: Okamoto, Yoshihiko
name: Takenaka, Koshi
name: Uji, Shinya
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present the topology of spin-split Fermi surface of CaAgAs as determined by de Haas-van Alphen (dHvA) effect measurements combined with ab initio calculations. We have determined the torus-shaped nodal-line Fermi surface from the dHvA oscillations of $β$ and $γ$ orbits. The former orbit encircles the nodal-line, while the latter does not. Nevertheless, a nontrivial Berry phase is found for both orbits. The nontrivial phase of $β$ arises from the orbital characters, which can be expressed as a pseudospin rotating around the nodal-line. On the other hand, the phase of $γ$ is attributed to the vortex of real spin texture induced by an antisymmetric spin-orbit interaction. Our result demonstrates that both the real- and pseudo-spin textures are indispensable in interpreting the electronic topology in noncentrosymmetric nodal-line semimetals.
description: 11 pages, 7 figures
Interband impact ionization and nonlinear absorption of terahertz radiations in semiconductor heterostructures
Creators: name: Cao, J. C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have theoretically investigated nonlinear free-carrier absorption of terahertz radiation in InAs/AlSb heterojunctions. By considering multiple photon process and conduction-valence interband impact ionization (II), we have determined the field and frequency dependent absorption rate. It is shown that (i) electron-disorder scatterings are important at low to intermediate field, and (ii) most importantly, the high field absorption is dominated by II processes. Our theory can satisfactorily explain a long standing experimental result on the nonlinear absorption in THz regime.
description: 4 pages including 3 EPS figs
The effects of writing in an applied calculus course: An analysis of performance and errors
Creators: name: Hackett, Linda Diane
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3901
subject: Curriculum and pedagogy

description: This research study investigated the performance on a departmental final of students who wrote about their errors and misconceptions in complete sentences using correct mathematical terminology compared to students who did not write in complete sentences about their errors and misconceptions. The subjects in this study were primarily freshmen in six fall semester sections of Applied Calculus at a major university. The researcher taught the experimental and first control sections, while the four other sections were taught by four full-time faculty members. The statistical data was gathered from the departmental common final which had been given to all sections simultaneously. The experimental group was required to correct problems by identifying the errors made, describing the appropriate procedure to solve the problem using correct mathematical terminology, vocabulary, and complete sentences, and by providing a complete corrected solution with verification. The first control group's only requirement was to provide a complete corrected solution with verification. The remaining four sections of Applied Calculus, the second control group, had no requirements for correcting mistakes on their examinations. Both quantitative and qualitative methodologies were employed to analyze and describe the achievements of the students. For the quantitative analysis, the performance of the students was evaluated using the Wilcoxon rank sum test on the final scores from the departmental common final. From the statistical analyses, the experimental group performed on average significantly better than the second control group on the departmental common final. The experimental group also performed on average significantly better than the first control group on the departmental common final. There is statistical evidence the students in the first control group performed on average better than the second control on the departmental final. The qualitative portion of the study indicated the students in the experimental group who did through and complete error analyses did not repeat their conceptual errors on the final. The experimental and first control groups' test correction analyses indicated those who had conceptual errors on the final had a pattern of either incomplete or incorrect error analyses.
title: Ebf2, a new regulator of neuronal differentiation: from gene identification to analysis of the Ebf2 -/- mouse
Creators: name: Corradi, Anna
Publisher: name: The Open University
Year: 2001

description: To shed light on molecular mechanisms underlying patterning and cell type specification during the ontogeny of the Central Nervous System (CNS), I set up to isolate new gènes with restricted patterns of expression in the developing mouse brain through a PCR based differential screening technique [1].
 Among other genes found with this approach, I isolated Ebf2. This gene belongs to a new subclass of the HLH transcription factors, including several members ranging from rodents to C. elegans. In the mouse three homologs have been cloned by different groups and named Ebf1, Ebf2 and Ebf3 [2-4].
I studied the expression domain of Ebf2 during development at stages from E10.5 to E14.5 and compared it with the expression of other family members. In the region spanning midbrain to spinal cord, the patterns of expression of the three genes are very similar with few salient differences and correlate with neuronal maturation.
In order to analyse the specific function of Ebf2 in neuronal development, we decided to generate a null mutant for this gene. To this end, I have determined the genomic structure at the Ebf2 locus and I finely mapped the position of the first 6 exons in 20Kb of genomic DNA. Based on the map of the locus, I generated a construct containing a 5.2 kb deletion, encompassing the translation initiation site, the first 5 exons and half of the domain encoding the zinc finger. I substituted this region with a LacZ Neo cassette. The construct was electroporated into mouse embryonic stem cells (ES). Out of 1200 clones screened, I found 3 homologous recombinant clones, that we microinjected into C57B1/B6 blastocysts obtaining chimeras and germline transmission.
 Despite the similarities observed among the three Ebf genes, suggesting possible redundancy in their functions, Ebf2 -/- mice show an evidently abnormal phenotype. The knocks out animals are viable at birth but show lower sizes than their littermates, as well as a mild ataxic phenotype and problems in movements and coordination. Around 50% of these mice die in the first two months of life.
The analysis of the Ebf2 -/- mutant CNS, even if preliminary, revealed several alterations in the different regions of postnatal brain. We observed numerous abnormalities in Ebf2-expressing neural structures, namely the cerebellum, the septum and the olfactory bulb; we found that other telencephalic structures seem to be affected, including the hippocampus and putamen. Finally, we observed problems in the spinal cord and an impairment of peripheral nerve myelination.
Are Sunnier Cities Denser?
Creators: name: Hartwick, John
name: Hartwick, John
Publisher: name: Unknown
Year: 2007
Subjects: subject: Financial Economics
subject: urban amenities
subject: density
subject: wages

description: We set out an open, monocentric city with residential structures and reect on how changes to an amenity index a¤ects the city. On the production side, the shock is represented by a productivity improvemnt and a local wage increase and on the consumption side the shock is represented by an exogenous boost to the utility of a residents current commodity bundle. In each case the citys population, land rent and footprint expand. In the second case there is an increase in density.
Rural Elderly in Demographic Perspective
Creators: name: Glasgow, Nina
name: Beale, Calvin L.
name: Glasgow, Nina
name: Beale, Calvin L.
Publisher: name: Unknown
Year: 1985
Subjects: Consumer/Household Economics
Food Security and Poverty

description: Living conditions of most of the rural elderly are now roughly comparable with those of the urban elderly. The two major differences remaining are in income and health. The proportion of elderly living in poverty is more than half again as great in rural areas as in cities. And, paradoxically, while the rural elderly require more hospitalization and medical care, they have become concentrated in many rural areas poorly equipped to serve their special medical and other needs.