cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Prospección de mercado de hortalizas bajo producción integrada en cuatro ciudades de la Octava Región de Chile
Creators: name: Cerda, R.
name: Faundez, M.
name: Chandia, A.
name: Monroy, M.
name: Cerda, R.
name: Faundez, M.
name: Chandia, A.
name: Monroy, M.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Agribusiness
subject: Consumer/Household Economics
subject: Marketing
subject: FOS: Economics and business
subject: willingness to purchase
subject: vegetables
subject: integrated production

description: This is case study directed to learn about the consumer’s willingness to purchase integrated produced vegetables in four cities of the Eighth Region of Chile. Four variables, i.e. product, price, place and communication, were utilized in a survey conducted at the supermarket level. Conclusions point out that there is absolute ignorance about vegetable integrated production. Consumers value the external appearance of the product in order to define quality and sanitary aspects. In addition, interviewed individuals are willing to pay an over-price for a safe product. Lastly, the preferred place to purchase vegetables is the supermarket.
description: Published by Asociación de Economistas Agrarios de Chile
Quasi-stationary States of Two-Dimensional Electron Plasma Trapped in Magnetic Field
Creators: name: Kawahara, Ryo
name: Nakanishi, Hiizu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We have performed numerical simulations on a pure electron plasma system under a strong magnetic field, in order to examine quasi-stationary states that the system eventually evolves into. We use ring states as the initial states, changing the width, and find that the system evolves into a vortex crystal state from a thinner-ring state while a state with a single-peaked density distribution is obtained from a thicker-ring initial state. For those quasi-stationary states, density distribution and macroscopic observables are defined on the basis of a coarse-grained density field. We compare our results with experiments and some statistical theories, which include the Gibbs-Boltzmann statistics, Tsallis statistics, the fluid entropy theory, and the minimum enstrophy state. From some of those initial states, we obtain the quasi-stationary states which are close to the minimum enstrophy state, but we also find that the quasi-stationary states depend upon initial states, even if the initial states have the same energy and angular momentum, which means the ergodicity does not hold.
description: 9 pages, 7 figures
Stellar Variability in a Forming Massive Star Cluster
Creators: name: Cheng, Yu
name: Andersen, Morten
name: Tan, Jonathan C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a near-infrared (NIR) variability analysis for an 6\arcmin $\times$ 6\arcmin region, which encompasses the massive protocluster G286.21+0.17. The total sample comprises more than 5000 objects, of which 562 show signs of a circumstellar disk based on their infrared colors. The data includes HST observations taken in two epochs separated by 3 years in the F110W and F160W bands. 363 objects (7% of the sample) exhibit NIR variability at a significant level (Stetson index >1.7), and a higher variability fraction (14%) is found for the young stellar objects (YSOs) with disk excesses. We identified 4 high amplitude (>0.6 mag) variables seen in both NIR bands. Follow up and archival observations of the most variable object in this survey (G286.2032+0.1740) reveal a rising light curve over 8 years from 2011 to 2019, with a K band brightening of 3.5 mag. Overall the temporal behavior of G286.2032+0.1740 resembles that of typical FU Ori objects, however its pre-burst luminosity indicates it has a very low mass ($<0.12\:M_\odot$), making it an extreme case of an outburst event that is still ongoing.
description: 13 pages, 8 figures, accepted by ApJ
Physicochemical Analysis of Six Groundwater Samples around Khat Cho Village [Kachin State]
Creators: name: Hkyeng, Seng Naw Awng
name: Pyone Pyone Yi
name: Thet Thet Aung
Publisher: name: figshare
Year: 2020
Subjects: subject: 90508 Water Quality Engineering
subject: FOS: Civil engineering

description: Groundwater is the primary source of water supply for drinking and domestic purposes to dwellers in Khat Cho Village. In this paper, with the aim of examining whether the water is safe enough for daily consumption, physical examination and chemical analysis such as pH, color, turbidity, conductivity, calcium, hardness, magnesium, chloride, alkalinity, iron, manganese and sulfate were analyzed in six groundwater samples. Those samples were taken from common tube wells around Khat Cho Village in Waingmaw Township within a specified time and day. According to the test results from the water laboratory, those samples were found to be chemically potable. Index Terms-Groundwater quality, Khat Cho village, Physicochemical analysis, Safe for daily consumption.
Continuum Mechanical Modeling of Strain-Induced Crystallization in Polymers
Creators: name: Aygün, Serhat
name: Klinge, Sandra
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The present contribution focuses on the thermodynamically consistent mechanical modeling of the strain-induced crystallization in unfilled polymers. This phenomenon is of particular importance for the mechanical properties of polymers as well as for their manufacturing and the application. The model developed uses the principle of the minimum of dissipation potential and assumes two internal variables: the deformations due to crystallization and the regularity of the network. In addition to the dissipation potential necessary for the derivation of evolution equations, the well-established Arruda-Boyce model is chosen to depict the elastic behavior of the polymer. Two special features of the model are the evolution direction depending on the stress state and the distinction of crystallization during the loading and unloading phase. The model has been implemented into the finite element method and applied for numerical simulation of the growth and shrinkage of the crystal regions during a cyclic tension test for samples with different initial configurations. The concept enables the visualization of the microstructure evolution, yielding information that is still inaccessible by experimental techniques.
இணையத்தமிழ் இதழ்கள்
Creators: name: M, Dr.Stephen Mickel Raj
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature
subject: 200520 Indian Literature

description: இணையத்தமிழ் இதழ்களின் வளர்ச்சி, நிறை-குறைகள், இதழியல் புரட்சி, இணகயத்தமிழ்ழ் இதழ்களை மேம்படுத்த பரவலாக்கம் செய்ய வேண்டிய தேவைகள் ஆகியன பற்றி எடுத்துரைக்கிறது இக்கட்டுரை.
On unbalanced data and common shock models in stochastic loss reserving
Creators: name: Avanzi, Benjamin
name: Taylor, Gregory Clive
name: Vu, Phuong Anh
name: Wong, Bernard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Risk Management (q-fin.RM)
subject: Applications (stat.AP)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences
subject: 91G70, 91G60, 62P05, 62H12

description: Introducing common shocks is a popular dependence modelling approach, with some recent applications in loss reserving. The main advantage of this approach is the ability to capture structural dependence coming from known relationships. In addition, it helps with the parsimonious construction of correlation matrices of large dimensions. However, complications arise in the presence of "unbalanced data", that is, when (expected) magnitude of observations over a single triangle, or between triangles, can vary substantially. Specifically, if a single common shock is applied to all of these cells, it can contribute insignificantly to the larger values and/or swamp the smaller ones, unless careful adjustments are made. This problem is further complicated in applications involving negative claim amounts. In this paper, we address this problem in the loss reserving context using a common shock Tweedie approach for unbalanced data. We show that the solution not only provides a much better balance of the common shock proportions relative to the unbalanced data, but it is also parsimonious. Finally, the common shock Tweedie model also provides distributional tractability.
Boundary state bootstrap and asymptotic overlaps in AdS/dCFT
Creators: name: Gombor, Tamas
name: Bajnok, Zoltan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We formulate and close the boundary state bootstrap for factorizing K-matrices in AdS/CFT. We found that there are no boundary degrees of freedom in the boundary bound states, merely the boundary parameters are shifted. We use this family of boundary bound states to describe the D3-D5 system for higher dimensional matrix product states and provide their asymptotic overlap formulas. In doing so we generalize the nesting for overlaps of matrix product states and Bethe states.
description: 17 pages, some explanations and references added
Audiovisual Speech-In-Noise (SIN) Performance of Young Adults with ADHD
Creators: name: Jayawardena, Gavindya
name: Michalek, Anne M. P.
name: Duchowski, Andrew T.
name: Jayarathna, Sampath
Publisher: name: arXiv
Year: 2020
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences
subject: J.4

description: Adolescents with Attention-deficit/hyperactivity disorder (ADHD) have difficulty processing speech with background noise due to reduced inhibitory control and working memory capacity (WMC). This paper presents a pilot study of an audiovisual Speech-In-Noise (SIN) task for young adults with ADHD compared to age-matched controls using eye-tracking measures. The audiovisual SIN task consists of varying six levels of background babble, accompanied by visual cues. A significant difference between ADHD and neurotypical (NT) groups was observed at 15 dB signal-to-noise ratio (SNR). These results contribute to the literature of young adults with ADHD.
description: To be published in Symposium on Eye Tracking Research and Applications (ETRA '20 Short Papers), 6 pages, 3 figures, 2 tables
Nonlinear Filter for Simultaneous Localization and Mapping on a Matrix Lie Group using IMU and Feature Measurements
Creators: name: Hashim, Hashim A.
name: Eltoukhy, Abdelrahman E. E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Simultaneous Localization and Mapping (SLAM) is a process of concurrent estimation of the vehicle's pose and feature locations with respect to a frame of reference. This paper proposes a computationally cheap geometric nonlinear SLAM filter algorithm structured to mimic the nonlinear motion dynamics of the true SLAM problem posed on the matrix Lie group of $\mathbb{SLAM}_{n}\left(3\right)$. The nonlinear filter on manifold is proposed in continuous form and it utilizes available measurements obtained from group velocity vectors, feature measurements and an inertial measurement unit (IMU). The unknown bias attached to velocity measurements is successfully handled by the proposed estimator. Simulation results illustrate the robustness of the proposed filter in discrete form demonstrating its utility for the six-degrees-of-freedom (6 DoF) pose estimation as well as feature estimation in three-dimensional (3D) space. In addition, the quaternion representation of the nonlinear filter for SLAM is provided. Keywords: Simultaneous Localization and Mapping, Nonlinear observer algorithm for SLAM, inertial measurement unit, inertial vision system, pose, position, attitude, landmark, estimation, IMU, SE(3), SO(3), unmanned aerial vehicle, rigid-body, noise, nonlinear observer for SLAM, Gaussian filter, Kalman filtering, navigation.
Diversificación de exportaciones agrícolas en América Latina y el Caribe: patrones y determinantes
Creators: name: Foster, William E.
name: Jara, Esteban
name: Foster, William E.
name: Jara, Esteban
Publisher: name: Unknown
Year: 2005
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: agricultural exports
subject: agricultural diversification

description: This paper analyzes the evolution of agricultural export diversity for 22 countries of Latin America and the Caribbean between 1961 and 2002. Data from FAOSTAT for basic and process agricultural products were used to construct a modified Herfindahl (Simpson) index of product export shares that accounts for the correlation of product prices and places less weight on products with positively correlated prices. The recent pattern of diversification shows a systematic increase since the mid- to late-1980s, with a clear distinction between the patterns for South America and for Central America, Mexico and the Caribbean. The individual country changes, however, are heterogeneous and due to the country-specific initial mixes and subsequent changes the mix of export products. Instrumental variable estimation results show that changes in diversification have been positively related to country financial depth, extent of irrigation, and trade openness, and negatively related to price instability (inflation) and the size of government as a proportion of GDP. Notably, the level of a country's economic development is negatively related to agricultural export diversification.
description: Published by Asociación de Economistas Agrarios de Chile
La comercialización de agua en tiempo de sequía: el papel del riesgo y de las expectativas en los mercados de aguas en la agricultura
Creators: name: Hadjigeorgalis, Ereney
name: Hadjigeorgalis, Ereney
Publisher: name: Unknown
Year: 2005
Subjects: subject: Environmental Economics and Policy
subject: uncertainty
subject: risk
subject: water resources
subject: water rights
subject: drought.

description: Farm production is surrounded by uncertainty. Between planting and harvesting many random events such as plagues, droughts and sudden changes in commodity prices, may affect farmers’ revenues. Agriculture in arid and semi-arid zones is highly dependent on rainfall, which introduces an additional risk during droughts. This research posits the hypothesis that water management in agriculture during droughts strongly depends on the risks farmers face and on their expectations, based on past drought experiences. Specifically, it is hypothesized that farmers’ participation in the water spot or water rights markets are a function of their individual levels of risk, the variability of water supply and irrigation efficiency, the type of crops grown and the severity and frequency of past droughts. To evaluate these hypotheses, data were collected from a sample of 333 farmers in the Limarí River Valley in Northern Chile, during the unprecedented drought that took place from 1994 through 1997.
description: Published by Asociación de Economistas Agrarios de Chile
Spin-orbital liquid in Ba$_3$CuSb$_2$O$_9$ stabilized by oxygen holes
Creators: name: Takubo, Kou
name: Mizokawa, Takashi
name: Man, Huiyuan
name: Yamamoto, Kohei
name: Zhang, Yujun
name: Hirata, Yasuyuki
name: Wadati, Hiroki
name: Yasui, Akira
name: Khomskii, Daniel I.
name: Nakatsuji, Satoru
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Both the Jahn-Teller distortion of Cu$^{2+}$O$_6$ octahedra and magnetic ordering are absent in hexagonal Ba$_3$CuSb$_2$O$_9$ suggesting a Cu 3$d$ spin-orbital liquid state. Here, by means of resonant x-ray scattering and absorption experiment, we show that oxygen 2$p$ holes play crucial role in stabilizing this spin-orbital liquid state. These oxygen holes appear due to the "reaction" Sb$^{5+}$$\rightarrow$Sb$^{3+}$ $+$ two oxygen holes, with these holes being able to attach to Cu ions. The hexagonal phase with oxygen 2$p$ holes exhibits also a novel charge-orbital dynamics which is absent in the orthorhombic phase of Ba$_3$CuSb$_2$O$_9$ with Jahn-Teller distortion and Cu 3$d$ orbital order. The present work opens up a new avenue towards spin-charge-orbital entangled liquid state in transition-metal oxides with small or negative charge transfer energy.
description: 21 pages, 6 figures
Voltage dependent conductance and shot noise in quantum microconstriction with single defects
Creators: name: Avotina, Ye. S.
name: Namiranian, A.
name: Kolesnichenko, Yu. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The influence of the interference of electron waves, which are scattered by single impurities and by a barrier on nonlinear conductance and shot noise of metallic microconstriction is studied theoretically. It is shown that the these characteristics are nonmonotonic functions on the applied bias.
description: 18 pages,5 figures
Efficient planning of peen-forming patterns via artificial neural networks
Creators: name: Siguerdidjane, Wassime
name: Khameneifar, Farbod
name: Gosselin, Frédérick P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Robust automation of the shot peen forming process demands a closed-loop feedback in which a suitable treatment pattern needs to be found in real-time for each treatment iteration. In this work, we present a method for finding the peen-forming patterns, based on a neural network (NN), which learns the nonlinear function that relates a given target shape (input) to its optimal peening pattern (output), from data generated by finite element simulations. The trained NN yields patterns with an average binary accuracy of 98.8\% with respect to the ground truth in microseconds.
Análisis de rentabilidad de la inversión en mejoramiento genético de ganado bovino lechero bajo condiciones chilenas
Creators: name: Kobrich, Claus
name: Catalan, F.
name: Martinez Valderrama, Alfonso
name: Maino, Mario
name: Kobrich, Claus
name: Catalan, F.
name: Martinez Valderrama, Alfonso
name: Maino, Mario
Publisher: name: Unknown
Year: 2005
Subjects: Farm Management

description: An economic model was used to evaluate the profitability of genetic improvement investment of dairy cattle, under five productive conditions typical of Chile. To this effect an index that estimates the net present value (NPV) of a semen dose was elaborated. This index considers the prices of semen, milk, fat and protein, real interest rate, genetic merit with regard to milking and conformation features, production costs and reproductive parameters. The model was employed to (1) measure the effect of genotype-environment interaction on the profitability of the investment in semen, (2) the relationship between the NPV, price of semen and the genetic merit indicators, and (3) the sensitivity of the NPV with regard to changes in herd fertility. Results show that the NPV is highly determined by the price of semen and that the predicted transmitting ability (PTA) for milk is the best profitability estimator. The improvement in milk solid contents and the investment on high price semen resulted profitable only for those production levels where the coefficients of response to selection are the highest.
description: Published by Asociación de Economistas Agrarios de Chile
Residential Consumption of Gas and Electricity in the U.S.: The Role of Prices and Income
Creators: name: Alberini, Anna
name: Gans, Will
name: Velez-Lopez, Daniel
name: Alberini, Anna
name: Gans, Will
name: Velez-Lopez, Daniel
Publisher: name: Unknown
Year: 2011
Subjects: subject: Resource /Energy Economics and Policy
subject: Residential Electricity and Gas Demand
subject: Price Elasticity Of Energy Demand
subject: Static Model
subject: Dynamic Panel Data Model
subject: Partial Adjustment Model

description: We study residential demand for electricity and gas, working with nationwide household-level data that cover recent years, namely 1997-2007. Our dataset is a mixed panel/multi-year cross-sections of dwellings/households in the 50 largest metropolitan areas in the United States as of 2008. To our knowledge, this is the most comprehensive set of data for examining household residential energy usage at the national level, containing the broadest geographical coverage, and with the longest longitudinal component (up to 6 observations per dwelling). We estimate static and dynamic models of electricity and gas demand. We find strong household response to energy prices, both in the short and long term. From the static models, we get estimates of the own price elasticity of electricity demand in the -0.860 to -0.667 range, while the own price elasticity of gas demand is -0.693 to -0.566. These results are robust to a variety of checks. Contrary to earlier literature (Metcalf and Hassett, 1999; Reiss and White, 2005), we find no evidence of significantly different elasticities across households with electric and gas heat. The price elasticity of electricity demand declines with income, but the magnitude of this effect is small. These results are in sharp contrast to much of the literature on residential energy consumption in the United States, and with the figures used in current government agency practice. Our results suggest that there might be greater potential for policies which affect energy price than may have been previously appreciated.
Cumulative effects of agricultural intensification on nutrient and trace metal pollution in the Sumas River watershed, Abbotsford, B.C.
Creators: name: Smith, Ione Marie
Publisher: name: University of British Columbia
Year: 2009

description: The Sumas River transboundary watershed is characterized by an asbestos landslide in a headwater tributary and intensive hog and poultry operations in the flat Sumas Prairie floodplain. The quality of water and sediment in the Sumas River watershed is important from the point of view of fish habitat and recreation. A recent intensification of agricultural activities has renewed concerns about environmental impacts in the region, notably with regard to non-point source pollution. This study used land use indicators such as livestock density, nitrogen application surpluses, and crop cover along with the analysis of water and sediment samples to investigate cumulative effects of agricultural intensification on an aquatic ecosystem. Long-term trends were explored using historical data to track changes over time. Water quality results indicated that nitrate levels have significantly increased during the wet season since 1993 in the Sumas River and in tributaries that are surrounded by intensive agricultural operations. Marshall Creek, which is influenced by the Abbotsford Aquifer, has experienced significant increases in nitrate during the dry season since 1993. Levels of ammonium have risen above provincial water quality guidelines for aquatic health in the Sumas Canal. Tributaries throughout the watershed were often eutrophic during summer months, with algal blooms observed at several sites. Trace metals associated with agricultural operations (Cu, Fe, Mn, and Zn) and the asbestos landslide (Ni, Cr, Co, Mg) were investigated by measuring the dissolved, bioavailable (using the diffusive gradient thin film technique (DGT)), and sedimentbound metal fractions. DGT results indicated that bioavailable Zn levels were consistently highest in Marshall Creek. Spatially, sediment concentrations of Cu, Fe, and Zn increased in the downstream direction of the Sumas River. Temporally, severa sediment bound elements (Cu, K, P, and Zn) have significantly increased in tributaries associated with intensive agricultural operations since 1993. Livestock density was significantly correlated to higher levels of nutrients and trace metals in water and sediment. Nitrate was also significantly correlated to nitrogen surplus applications, the percent clay content within sediment, and the amount of corn and pasture crops cultivated adjacent to the sampling sites. The results indicate that more effective manure management practices are needed in order to stabilize water and sediment quality within the watershed. Substantial improvements in manure storage infrastructure, increases in manure exports, or a limit on livestock density may be required to remediate water and sediment quality. The current environmental state of the Sumas River watershed warrants renewed attention from private landowners and all levels of government.
First-Principles Study on Electron Conduction in Sodium Nanowire
Creators: name: Egami, Y.
name: Sasaki, T.
name: Ono, T.
name: Hirose, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present detailed first-principles calculations of the electron-conduction properties of a three-sodium-atom nanowire suspended between semi-infinite crystalline Na(001) electrodes during its elongation. Our investigations reveal that the conductance is ~1 G0 before the nanowire breaks and only one channel with the characteristic of the $3s$ orbital of the center atom in the nanowire contributes to the electron conduction. Moreover, the channel fully opens around the Fermi level, and the behavior of the channel-current density is insensitive to the structural deformation of the nanowire. These results verify that the conductance trace as a function of the electrode spacing exhibits a flat plateau at ~1 G0 during elongation.
description: 8 pages, 5 figures
Fermionic renormalization group flow into phases with broken discrete symmetry: charge-density wave mean-field model
Creators: name: Gersch, Roland
name: Honerkamp, Carsten
name: Rohe, Daniel
name: Metzner, Walter
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We generalize the application of the functional renormalization group (fRG) method for the fermionic flow into the symmetry-broken phase to finite temperatures. We apply the scheme to the case of a broken discrete symmetry: the charge-density wave (CDW) mean-field model at half filling. We show how an arbitrarily small initial CDW order parameter starts to grow at the CDW instability and how it flows to the correct final value, suppressing the divergence of the effective interaction in the fRG flow. The effective interaction peaks at the instability and saturates at low energy scales or temperatures. The relation to the mean-field treatment, differences compared to the flow for a broken continuous symmetry, and the prospects of the new method are discussed.
description: 10 pages, 7 figures. V2: minor corrections, journal references and DOI added
Prethermalisation and the Build Up of the Higgs Effect
Creators: name: Sexty, D.
name: Patkos, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Real time field excitations in the broken symmetry phase of the classical abelian Gauge+Higgs model are studied numerically in the unitary gauge, for systems starting from the unstable maximum of the Higgs potential.
description: 5 pages, 6 figures, to appear in proceedings of SEWM'04
Uncertainty in Integrated Assessment Models of Climate Change: Alternative Analytical Approaches
Creators: name: Golub, Alexander
name: Narita, Daiju
name: Schmidt, Matthias G.W.
name: Golub, Alexander
name: Narita, Daiju
name: Schmidt, Matthias G.W.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Environmental Economics and Policy
subject: Uncertainty
subject: Learning
subject: Economics of Climate Change
subject: Integrated Assessment Models
subject: Real Options

description: Uncertainty plays a key role in the economics of climate change, and the discussions surrounding its implications for climate policy are far from settled. We give an overview of the literature on uncertainty in integrated assessment models of climate change and identify some future research needs. In the paper, we pay particular attention to three different and complementary approaches that model uncertainty in association with integrated assessment models: the discrete uncertainty modeling, the most common way to incorporate uncertainty in complex climate-economy models: the real options analysis, a simplified way to identify and value flexibility: the continuous-time stochastic dynamic programming, which is computationally most challenging but necessary if persistent stochasticity is considered.
Decentralized Renewable Energy Broke Vietnam's Power Planning Logic
Creators: name: Minh, Ha-Duong
Publisher: name: Zenodo
Year: 2021
Subjects: PDP8

description: In early 2021, Vietnam’s Ministry of Industry and Trade released for public discussion the draft Power Development Plan VIII describing how the country will produce its electricity for the next ten years. Focused on developing gas-fired power, the draft reuses a renewable energy development strategy elaborated six years ago.
 That strategy was ambitious then but is now outdated by an ongoing solar and wind boom. Obsolete before publication, the draft fails to plan the ongoing energy transition which is all about PV, wind, storage, transport electrification, and increasing climate policy goals. To remain relevant in the energy transition era, quinquennial planning update has to become more agile.
description: This policy note discusses Vietnam's Power Development Plan 8 initial proposal (March 2021). Includes the table of installed capacity goals by technology and energy source for 2025 and 2030. Data was obsoleted by the following two PDP8 proposals in October, November and the final approved version.
Energy Abundance, Trade and Industry Location
Creators: name: Gerlagh, Reyer
name: Mathys, Nicole A.
name: Gerlagh, Reyer
name: Mathys, Nicole A.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Resource /Energy Economics and Policy
subject: Trade and the Environment
subject: Pollution Haven
subject: Factor Endowments
subject: Industry Location

description: We study the effect of countries’ energy abundance on trade and sector activity, conditional on sector’s energy intensity, using an unbalanced panel with 14 high-income countries from Europe, America and Asia, 10 broad sectors, and years 1970-1997. We find that (i) countries with large energy endowments have low energy prices, and are thus energy abundant both on micro and macro level. (ii) Energy abundant countries have a high level of energy embodied in exports relative to imports. (iii) Energy intensive sectors export from and (iv) have higher economic activity in energy abundant countries. (v) The trade and location effects increase with a sector’s exposure to international trade. In short, energy is a major driver for sector location through specialisation. We show that capital and energy are complements in the production function and use various controls in our analysis. The results give insights into delocalisation effects that may take place among rich countries with heterogeneous energy policy.
Near-Infrared Properties of Faint X-rays Sources from NICMOS Imaging in the Chandra Deep Fields
Creators: name: Colbert, James W.
name: Teplitz, Harry
name: Yan, Lin
name: Malkan, Matthew
name: McCarthy, Patrick
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We measure the near-infrared properties of 42 X-ray detected sources from the Chandra Deep Fields North and South, the majority of which lie within the NICMOS Hubble Deep Field North and Ultra Deep Field. We detect all 42 Chandra sources with NICMOS, with 95% brighter than H = 24.5. We find that X-ray sources are most often in the brightest and most massive galaxies. Neither the X-ray fluxes nor hardness ratios of the sample show any correlation with near-infrared flux, color or morphology. This lack of correlation indicates there is little connection between the two emission mechanisms and is consistent with the near-infrared emission being dominated by starlight rather than a Seyfert non-stellar continuum. Near-infrared X-ray sources make up roughly half of all extremely red (J-H > 1.4) objects brighter than H > 24.5. These red X-ray sources have a range of hardness ratios similar to the rest of the sample, decreasing the likelihood of dust-obscured AGN activity as the sole explanation for their red color. Using a combination of spectroscopic and photometric redshifts, we find the red J-H objects are at high redshifts (z > 1.5), which we propose as the primary explanation for their extreme J-H color. Measurement of rest-wavelength absolute B magnitudes shows that X-ray sources are the brightest optical objects at all redshifts, which explains their dominance of the bright end of the red J-H population.
description: 29 pages, 7 figures, accepted by ApJ
Herbicide Dynamics and Bioavailability in the Soil
Creators: name: GAVIN NEIL STYLES
Publisher: name: Monash University
Year: 2020
Subjects: Environmental Chemistry

description: In order to improve management strategies surrounding herbicide usage, greater understanding of how herbicides behave in soil is required. This thesis addresses this through development of predictive models of herbicide behaviour in soil, new testing methods for "plant available" herbicide in soil, and looks at the mechanisms by which herbicides bind to and are are released from soil. In particular, this thesis focused on the herbicides glyphosate (Trade name RoundUp) and imazamox (Trade name Raptor)
Holocaust literature for young adults : a content analysis of disturbing elements in selected memoirs
Creators: name: Roseman, Aviva R.
Publisher: name: University of British Columbia
Year: 2009

description: This thesis deals with the content analysis of ten Holocaust memoirs recommended for young adults, and which were written by ten Jewish Holocaust survivors. The content analysis used the elements of violence, hunger, rebellion, sense of loss and abandonment, loneliness, hope and redemption, spirituality, loss of emotional stability, and shame. Since the Holocaust is inherently, and therefore inevitably about violence, young people, for the reason of developing humaneness must learn about this aspect. Having Holocaust memoirs shed another light on people's capability of good and evil, the child is provided with a full range of human personality traits from which he will develop an identity for himself. By reading and discussing memoirs and books about the Holocaust, the memory of this dark period in history remains alive in people's minds which may prevent it from happening again.
Afforestation and Timber Management Compliance Strategies in Climate Policy. A Computable General Equilibrium Analysis
Creators: name: Michetti, Melania
name: Nunes Rosa, Renato
name: Michetti, Melania
name: Nunes Rosa, Renato
Publisher: name: Unknown
Year: 2011
Subjects: subject: Environmental Economics and Policy
subject: Climate Change
subject: General Equilibrium Modelling
subject: Forestry
subject: Afforestation

description: This paper analyzes the role of afforestation-reforestation and timber management activities, and their major and secondary economic effects in stabilizing climate during the first commitment period of the Kyoto Protocol. In particular, with a Computable General Equilibrium framework, the ICES model, it is inferred how forest carbon sequestration fits within the European domestic portfolio of a 2020-20 and 2020-30 climate stabilization policy. Afforestation and land use are accounted for by introducing their effects in the model. This is done by relying on carbon sequestration curves provided by Sohngen (2005), which describe the average annual cost of sequestration for selected world regions. Results show that afforestation and timber management could lead to substantially lower policy costs if included. By allowing afforestation alone it is possible to achieve the 30% emissions reduction target with an additional European effort of only 0.2% compared with the cost of a 20% emissions reduction without afforestation. The introduction of these alternatives for mitigating climate is expected to reduce carbon price by around 30% in 2020 and the already contained leakage effect (around 1%), coming from an independent European commitment, by 0.2%.
BJT2D_Meta
Creators: name: 任华慧(Huahui Ren)
Publisher: name: CNGB
Year: 2021
Subjects: Metagenome
Environment
Environmental

description: BJT2D study was designed as an exploratory, randomized, controlled, open-labeled, interventional trial. One hundred newly diagnosed overweight/obese T2D patients were recruited for the study and were randomly assigned to the acarbose or vildagliptin group in a 1:1 ratio. During the 24-week intervention, lifestyle guidance was provided by the investigators at baseline, 12-week, and 24-week (endpoint) visits to assess medication adherence. And fecal samples were selected and sequenced at baseline and 24-week.
Genomic landscape of the expanded reference genomes for cultivated bacteria from human gut
Creators: name: 胡童远(Hu Tongyuan)
Publisher: name: CNGB
Year: 2021
Subjects: Genome sequencing and assembly
Multiisolate

description: The extensive culture-independent metagenomic studies have greatly revolutionized our understanding of the genetic and functional diversity of gut microbiota. A lack of cultured genome is still the limitation of the genomic study of gut microbiome. Here we present an expanded collection of the Culturable Genome Reference (CGR2), recapitulated 3,324 (1804 new) cultured genomes with high-quality draft, generated from the large-scale cultivation of over 20,000 bacteria isolates from fecal samples of healthy Chinese individuals.
Cosmology-insensitive estimate of IGM baryon mass fraction from five localized fast radio bursts
Creators: name: Li, Zhengxiang
name: Gao, He
name: Wei, Jun-Jie
name: Yang, Yuan-Pei
name: Zhang, Bing
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Five fast radio bursts (FRBs), including three apparently non-repeating ones FRB 180924, FRB 181112, and FRB 190523, and two repeaters, FRB 121102 and FRB 180916.J0158+65, have already been localized so far. We apply a method developed recently by us (Li et al. 2019) to these five localized FRBs to give a cosmology-insensitive estimate of the fraction of baryon mass in the IGM, $f_{\rm IGM}$. Using the measured dispersion measure (DM) and luminosity distance $d_{\rm L}$ data (inferred from the FRB redshifts and $d_{\rm L}$ of type Ia supernovae at the same redshifts) of the five FRBs, we constrain the local $f_{\rm IGM} = 0.84^{+0.16}_{-0.22}$ with no evidence of redshift dependence. This cosmology-insensitive estimate of $f_{\rm IGM}$ from FRB observations is in excellent agreement with previous constraints using other probes. Moreover, using the three apparently non-repeating FRBs only we get a little looser but consistent result $f_{\rm IGM} = 0.74^{+0.24}_{-0.18}$. In these two cases, reasonable estimations for the host galaxy DM contribution (${\rm DM_{host}}$) can be achieved by modelling it as a function of star formation rate. The constraints on both $f_{\rm IGM}$ and ${\rm DM_{host}}$ are expected to be significantly improved with the rapid progress in localizing FRBs.
description: 6 pages, 3 figures, accepted for publication in MNRAS Letters
“The Voracity Effect” and Climate Change: The Impact of Clean Technologies
Creators: name: Benchekroun, Hassan
name: Chaudhuri, Amrita Ray
name: Benchekroun, Hassan
name: Chaudhuri, Amrita Ray
Publisher: name: Unknown
Year: 2011
Subjects: subject: Environmental Economics and Policy
subject: Transboundary Pollution
subject: Renewable Resource
subject: Climate Change
subject: Clean Technologies
subject: Differential Games

description: We show that a technological breakthrough that reduces CO2 emissions per output can exacerbate the climate change problem: countries may respond by raising their emissions resulting in an increase of the stock of pollution that may reduce welfare. Using parameter values based on empirical evidence we obtain that any 'new technology' that reduces the emissions of CO2 per dollar of GDP by less than 76% from their current level is welfare reducing. Developing clean technologies as well as transferring “cleaner” technologies to developing countries make a global post-Kyoto agreement over the control of emissions all the more urgent.
Optical polarization skyrmionic fields in free space
Creators: name: Gutiérrez-Cuevas, Rodrigo
name: Pisanty, Emilio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We construct optical beams in free space with robust skyrmionic structures in their polarization fields, both in the electric spin vector for near-circular fields and in the polarization direction for near-linear fields, and for both Bloch (spiral) and Néel (hedgehog) textures. These structures are made possible by the spin-orbit coupling of tightly-focused nonparaxial optics as applied to higher-order Full-Poincaré beams, as well as by standing-wave configurations comprising forwards- and backwards-propagating waves. Our constructions show near-uniform circular and linear polarizations, providing a high degree of topological protection in the absence of nonlinear interactions.
The Changing Nature of Dairying: Ownership, Management And Succession
Creators: name: Dooley, A.E.
name: Dooley, A.E.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Land Economics/Use
subject: Dairy farming
subject: business structures
subject: ownership
subject: management
subject: succession

description: DairyNZ funded a two-year study on dairy farm ownership and management structures (June 2005 to May 2007), followed by a study on dairy farm succession in 2007/08. Farm business structures affect wealth creation and distribution, and determine who the dairy industry participants are and will be, and the roles they will have. Succession determines the next generation of farm owners. The research included literature reviews, farmer focus groups, a survey, case studies and industry interviews. This paper will present an overview of the key issues identified and discuss what these might mean for the future.
Saliva in swallowing with Sjögren's syndrome (Letawsky et al., 2020)
Creators: name: Letawsky, Veronica H.
name: Ann-Marie Schreiber
name: Skoretz, Stacey A.
Publisher: name: ASHA journals
Year: 2020
Subjects: subject: Medicine
subject: 110505 Oral Medicine and Pathology
subject: FOS: Clinical medicine

description: Purpose: Saliva is integral to swallowing and necessary for oral health. Understanding saliva’s origin and properties is important for swallowing assessment and management. Diseases such as Sjögren's syndrome (SS) can affect saliva negatively, often contributing to dysphagia. Our objectives are to (a) highlight saliva’s fundamental role in swallowing, (b) provide a bibliometric overview of literature pertaining to SS pathophysiology and effects on saliva, (c) explore implications of salivary changes on swallowing and quality of life in SS and other populations, and (d) provide suggestions for systematic saliva assessment in practice.Method: This tutorial reviews saliva production, composition, and involvement in swallowing within health and disease. Using rapid review methodology, we outline the effect of SS on saliva and describe SS etiology, diagnosis, and treatment. We discuss formal saliva assessments and a multidisciplinary approach.Results: Saliva plays a vital role in swallowing, particularly lubrication, bolus formation, and oral health. SS affects the salivary glands altering salivary flow rate and composition. We identified 55 studies (N) measuring salivary changes, grouping them according to four strata demarcated by SS classification criteria updates. For some, xerostomia, dysphagia, and reduced life quality result. Formal saliva assessments include the Clinical Oral Dryness Score, Xerostomia Inventory, and Secretion Rating Scale. Multidisciplinary care is optimal for patients with salivary changes.Conclusion: Understanding salivary changes in disease may enhance understanding of swallowing and inform dysphagia practice. Expanding swallowing assessments with formal saliva evaluations, and patient perspectives thereof, may aid in developing bespoke treatments, ultimately improving outcomes and quality of life.
Supplemental Material S1. Characteristics of included studies by year.
Letawsky, V. H., Schreiber, A.-M., & Skoret, S. A. (2020). A tutorial on saliva's role in swallowing with a focus on Sjögren's syndrome. American Journal of Speech-Language Pathology. Advance online publication. https://doi.org/10.1044/2020_AJSLP-19-00083
title: Αξιολόγηση εναλλακτικών τύπων βιοεξανθρακώματος ως προς την απομάκρυνση μικροοργανικών ρύπων από τα λύματα
titleType: AlternativeTitle
title: Evaluation of different biochars as potential adsorbents for emerging contaminants removal from wastewater
Creators: name: Kapsimali, Elpida
Publisher: name: National Technological University of Athens
Year: 2025
Subjects: Βιοεξανθράκωμα
Μικροοργανικοί ρύποι
Ρύποι αναδυόμενης ανησυχίας
Ενδοκρινικοί διαταράκτες
Μη στερεοειδή αντιφλεγμονώδη φάρμακα
Biochar
Organic Micropollutants
Contaminants of emerging concern
Endocrine disrupting chemicals
Non-steroidal anti-inflammatory drugs

description: Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία. Διεπιστημονικό-Διατμηματικό Πρόγραμμα Μεταπτυχιακών Σπουδών (Δ.Π.Μ.Σ.) “Επιστήμη και Τεχνολογία Υδατικών Πόρων”
Impact assessment and Policy and Standardisation recommendations
Creators: name: Perez de Leon-Huet, Vincent
Publisher: name: Zenodo
Year: 2023

description: The aim of the present deliverable is to analyse and assess the potential impacts of the work carried out by the PRECINCT consortium partners and resulting project outputs. Further, this deliverable explains these in detail standardisation activities in PRECINCT as well as potential standardisation activities in various areas. This deliverable will also present an extensive discussion around policies and legislation related to Critical Infrastructure Protection.
Noncommutative Quantum Cosmology
Creators: name: Pimentel, Luis O.
name: Mora, Cesar
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider noncommutative quantum cosmology in the case of the low-energy string effective theory. Exacts solutions are found and compared with the commutative case.The Noncommutative quantum cosmology is considered in the case of the low-energy string effective theory. Exacts solutions are found and compared with the commutative case.
description: Revtex4, 3 pages, 2 figures, to appear in Gen.Rel.Grav