cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tiliacorinine, a new systemic fungicide effective against Alternaria blight of pigeon pea (Cajanus cajan)
Creators: name: TRIPATHI, Y.C.
Publisher: name: figshare
Year: 2020
Subjects: subject: 30199 Analytical Chemistry not elsewhere classified
subject: FOS: Chemical sciences
subject: Biochemistry
subject: 30401 Biologically Active Molecules
subject: 30502 Natural Products Chemistry
subject: Organic Chemistry
subject: 30606 Structural Chemistry and Spectroscopy

description: In Indian medicine, Tiliacora racemosa is regarded as an antidote to snake bite. Extensive column chromatography and repeated preparative thin-layer chromatography of the crude base fraction of T. racemosa (5 kg) resulted in the isolation of tiliacorinine (80 mg) (mp 194-96 degrees C, (alpha)20(D) plus 310 degrees (Py,c,2.6)C36H36N2O5 (M(+) 576 and nor-tiliacorinine-A (20 mg) (mp 262-68 degrees C) (d), (alpha)20(D) plus 268.8 degrees (Py, c, 1.5) C35H34N2O5 (M(x) 562). These compounds were characterized by a detailed study of the spectral data and direct comparison with authentic samples. Tiliacorinine showed promising antifungal activity at 500 mg.ml(-1) in vitro against germination of conidia of Alternaria tenuissima, the causal agent of leaf blight of pigeon pea (Cajanus cajan). When the chemical was applied at 750 mg.ml(-1) to infected pigeon pea plants grown in pots out of doors, the disease was significantly checked. Chemical analysis of pigeon pea plants following spraying with the chemical, and also after feeding it through roots, showed the systemic nature of tiliacorinine. Tiliacorinine is considered to be a promising fungicide for use in the field against Alternaria leaf blight of pigeon pea.
Does Social Capital Have a Role in Environmental Kuznets Curve Estimation?
Creators: name: Paudel, Krishna P.
name: Bhandari, Doleswar
name: Johnson, Thomas G.
name: Paudel, Krishna P.
name: Bhandari, Doleswar
name: Johnson, Thomas G.
Publisher: name: Unknown
Year: 2006
Subjects: Environmental Economics and Policy

description: This study examines if social capital has a role to play in environmental Kuznets curve estimation. It uses information from the World Values Survey to extract the variables representative of the social capital to develop an index using a principal component analysis. Estimation involves the use of parametric and semiparametric panel models to examine the role of social capital in the EKC behavior.
Forecasting Chemical Abundance Precision for Extragalactic Stellar Archaeology
Creators: name: Sandford, Nathan R.
name: Weisz, Daniel R.
name: Ting, Yuan-Sen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Increasingly powerful and multiplexed spectroscopic facilities promise detailed chemical abundance patterns for millions of resolved stars in galaxies beyond the Milky Way (MW). Here, we employ the Cramér-Rao Lower Bound (CRLB) to forecast the precision to which stellar abundances for metal-poor, low-mass stars outside the MW can be measured for 41 current (e.g., Keck, MMT, VLT, DESI) and planned (e.g., MSE, JWST, ELTs) spectrograph configurations. We show that moderate resolution ($R\lesssim5000$) spectroscopy at blue-optical wavelengths ($λ\lesssim4500$ Å) (i) enables the recovery of 2-4 times as many elements as red-optical spectroscopy ($5000\lesssimλ\lesssim10000$ Å) at similar or higher resolutions ($R\sim 10000$) and (ii) can constrain the abundances of several neutron capture elements to $\lesssim$0.3 dex. We further show that high-resolution ($R\gtrsim 20000$), low S/N ($\sim$10 pixel$^{-1}$) spectra contain rich abundance information when modeled with full spectral fitting techniques. We demonstrate that JWST/NIRSpec and ELTs can recover (i) $\sim$10 and 30 elements, respectively, for metal-poor red giants throughout the Local Group and (ii) [Fe/H] and [$α$/Fe] for resolved stars in galaxies out to several Mpc with modest integration times. We show that select literature abundances are within a factor of $\sim$2 (or better) of our CRLBs. We suggest that, like ETCs, CRLBs should be used when planning stellar spectroscopic observations. We include an open source python package, \texttt{Chem-I-Calc}, that allows users to compute CRLBs for spectrographs of their choosing.
description: 60 pages, 24 figures, accepted for publication in ApJS
Finite-dimensional Lie subalgebras of the Weyl algebra
Creators: name: de Traubenberg, M. Rausch
name: Slupinski, M. J.
name: Tanasa, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Representation Theory (math.RT)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We classify up to isomorphism all finite-dimensional Lie algebras that can be realised as Lie subalgebras of the complex Weyl algebra $A_1$. The list we obtain turns out to be discrete and for example, the only non-solvable Lie algebras with this property are: $sl(2)$, $sl(2)\times\mathbb C$ and $sl(2)\ltimes{\cal H}_3$. We then give several different characterisations, normal forms and isotropy groups for the action of $Aut (A_1)\times Aut (sl(2))$ on a particular class of realisations of $sl(2)$ in $A_1$.
description: Latex 27 pages; some proofs are given with more details
Two concepts of politics : the private group/the public person
Creators: name: Hughes, Robin Laurence David
Publisher: name: University of British Columbia
Year: 2009

description: As a result of mis-founded paternalism and policies of assimilation, the latter half of the twentieth century in Canada, and elsewhere, was marked by the emergence of a politics of fear between minority groups and governments, minority groups and majority groups and between individual members of these groups. This environment selected for the emergence of a model of politics that focused on group solidarity and fraternity within minority groups and called for the preservation of group differences. This concept of politics can be termed the private group. There are three main problems with the private group. Firstly its claims boil down to a defense of value relativism when all the evidence points to the fact that this is not the case. Secondly, and somewhat ironically, the private group accentuates distances between people and in so doing exacerbates the politics of fear. Finally defenders of the private group overstate the necessity of membership in a particular group. Born out of fear of a larger group, the private group model is apt to lead to internal cruelty and further inter- and intra-group fear. The alternative is a model of politics based on the public person. The public person is characterized by reciprocity, civility and openness. Perhaps most importantly, differences are not viewed as existing in fixed terms between groups, but rather in relational terms between individuals. These qualities are likely to be selected for in the twenty-first century as not only states, but also individuals become more multicultural. The public person suggests viewing politics in a new manner, not as a contest but rather as a collaboration. This will alter the political system and suggests that rather than voting for MPs based on party platforms, people will vote for candidates based on their personal qualities. Governance will be carried out by a series of shifting alliances on particular issues. In the end an emphasis on the politics of the public person is likely to be more just than a mode of politics which is inclined toward the private group. A step towards accepting the model of the public person is likely to enable reconciliation between Aboriginals and non-Aboriginals and ultimately strengthen civil society in Canada.
Immigration Reform, Job Selection And Wages In The U.S. Farm Labor Market
Creators: name: Walters, Lurleen M.
name: Emerson, Robert D.
name: Iwai, Nobuyuki
name: Walters, Lurleen M.
name: Emerson, Robert D.
name: Iwai, Nobuyuki
Publisher: name: Unknown
Year: 2006
Subjects: Labor and Human Capital

description: Immigration issues regained national prominence after the events of September 2001. Much of the specialty crop sector workforce is foreign-born and unauthorized, implying that there may be significant challenges ahead if stringent immigration legislation is passed. This paper assesses the potential impact of legal status on job selection and wages.
Relative Feature Importance
Creators: name: König, Gunnar
name: Molnar, Christoph
name: Bischl, Bernd
name: Grosse-Wentrup, Moritz
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Interpretable Machine Learning (IML) methods are used to gain insight into the relevance of a feature of interest for the performance of a model. Commonly used IML methods differ in whether they consider features of interest in isolation, e.g., Permutation Feature Importance (PFI), or in relation to all remaining feature variables, e.g., Conditional Feature Importance (CFI). As such, the perturbation mechanisms inherent to PFI and CFI represent extreme reference points. We introduce Relative Feature Importance (RFI), a generalization of PFI and CFI that allows for a more nuanced feature importance computation beyond the PFI versus CFI dichotomy. With RFI, the importance of a feature relative to any other subset of features can be assessed, including variables that were not available at training time. We derive general interpretation rules for RFI based on a detailed theoretical analysis of the implications of relative feature relevance, and demonstrate the method's usefulness on simulated examples.
Cancer Chemotherapy and Cytotoxic Drugs
Creators: name: TRIPATHI, Y.C.
Publisher: name: figshare
Year: 2020
Subjects: subject: 111501 Basic Pharmacology
subject: FOS: Clinical medicine
subject: 111201 Cancer Cell Biology
subject: 111204 Cancer Therapy (excl. Chemotherapy and Radiation Therapy)
subject: Diseases
subject: 111506 Toxicology (incl. Clinical Toxicology)
subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences
subject: 111599 Pharmacology and Pharmaceutical Sciences not elsewhere classified

description: Cancer causing agents and therapeutic application of cytotoxic drugs in cancer chemotherapy are described in this article.
Risk Preferences, Perceptions and Systematic Biases
Creators: name: Langrock, Ines
name: Hurley, Terrance M.
name: Langrock, Ines
name: Hurley, Terrance M.
Publisher: name: Unknown
Year: 2006
Subjects: Risk and Uncertainty

description: Many decisions we face are characterized by risk or uncertainty we must make choices prior to knowing the outcome. However, we often know the potential outcomes and even have some idea regarding the likelihood of each. While there are similarities in how people respond to risky decisions, there are also differences related to factors like gender (e.g. Levin et al., 1998) and culture (e.g., Kleinhesselink and Rossa, 1991; Weber et al., 1998). Understanding these similarities and differences can help our understanding of a range of economic phenomena. For example, why does entrepreneurship flourish in some countries while it stagnates in others? Risk perceptions and risk preferences are widely recognized by economist as the major factors influencing risky behavior. Risk perceptions characterize the likelihood of chance outcomes and are usually framed in terms of subjective probabilities. Risk preferences rank outcomes based on individual wants. An understanding of how to use public policy to positively influence risky behavior requires understanding to what extent differences in risky behavior are attributable to differences in risk perceptions versus differences in risk preferences. The purpose of this project is to develop a novel experimental protocol for measuring individual differences in risk perceptions and risk preferences. This experimental protocol will then be used to explore how individual differences in subjective probabilities and risk preferences relate to objective probabilities, demographic characteristics, wealth, and information. The experimental protocol consists of three tasks. Firstly, subjects will read a general interest news article. Secondly, subjects will be asked to complete a survey. The survey will ask general demographic questions (e.g. age, gender, and family background). It will also ask 20 questions designed to elicit cultural information based on Geert Hofstede (2001). Thirdly, subjects will be asked how much they are willing to pay to play a more favorable lottery. The question will be repeated with 30 different lottery combinations, which will vary in terms of how a favorable outcome is determined (e.g. drawing poker chips as illustrated in the example or randomly choosing of specific word from the general interest news article) and the scale of rewards.
description: Replaced with revised version of paper 07/21/06.
Detections of CO in Late-Type, Low Surface Brightness Spiral Galaxies
Creators: name: Matthews, Lynn D.
name: Gao, Yu
name: Uson, Juan M.
name: Combes, Francoise
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using the IRAM 30-m telescope, we have obtained 12CO J=1-0 and 2-1 spectral line observations toward the nuclear regions of 15 edge-on, low surface brightness (LSB) spiral galaxies. Our sample comprises extreme late-type LSB spirals with disk-dominated morphologies and rotational velocities V_rot5sigma); for the remainder of the sample we provide upper limits on the nuclear CO content. Adopting a standard Galactic I_CO-to-H_2 conversion factor implies molecular gas masses of (3.3-9.8)x10**6 M_sun in the nuclear regions (inner 1.1-1.8 kpc) of the detected galaxies. Combining our new data with samples of late-type spirals from the literature, we find that the CO-detected LSB spirals adhere to the same M_H2-FIR correlation as more luminous and higher surface brightness galaxies. The amount of CO in the central regions of late-type spirals appears to depend more strongly on mass than on central optical surface brightness, and CO detectability declines significantly for moderate-to-low surface brightness spirals with V_rot
description: accepted to AJ
Pharmacognostical, Phytochemical and Biological Studies on Holarrhena antidysenterica Wall, A Review (Part-II)
Creators: name: TRIPATHI, Y.C.
Publisher: name: figshare
Year: 2020
Subjects: subject: 111501 Basic Pharmacology
subject: FOS: Clinical medicine
subject: 110499 Complementary and Alternative Medicine not elsewhere classified
subject: Diseases
subject: 111708 Health and Community Services
subject: FOS: Health sciences
subject: 111504 Pharmaceutical Sciences
subject: 111599 Pharmacology and Pharmaceutical Sciences not elsewhere classified
subject: 111717 Primary Health Care
subject: 111716 Preventive Medicine
subject: 110403 Traditional Aboriginal and Torres Strait Islander Medicine and Treatments

description: In continuation of the review Part-I, the clinical microbiological and pharmacological work that have been done so far on the plant H. anlidysenterica are described in this part.
Out of Site out of Mind: Quantifying the Long-term Off-site economic Impacts of Land Degradation in Kenya
Creators: name: Nkonya, Ephraim M.
name: Gicheru, Patrick
name: Woelcke, Johannes
name: Okoba, Barrack
name: Kilambya, Daniel
name: Gachimbi, Louis
name: Nkonya, Ephraim M.
name: Gicheru, Patrick
name: Woelcke, Johannes
name: Okoba, Barrack
name: Kilambya, Daniel
name: Gachimbi, Louis
Publisher: name: Unknown
Year: 2006
Subjects: Environmental Economics and Policy

description: This study investigated the private and social returns to Sustainable Land Management (SLM) practices with an objective of finding practices that reduce the on-farm and off-farm negative effects of land degradation. The results show that SLM practices have robust profits for farmers raising dairy cows. Farmers without dairy cows realize profits that are sensitive to input and output prices. Adoption of SLM also provides global environmental services whose value is about 10% of the net present value. The results suggest the need to promote SLM practices with multiple uses and consider ways to compensate farmers who offer significant environmental services.
Ca_25Co_22O_56(OH)_28: a layered misfit compound
Creators: name: Klimczuk, T.
name: Zandbergen, H. W.
name: van der Pers, N. M.
name: Viciu, L.
name: Miller, V. L.
name: Lee, M. -H.
name: Cava, R. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The high pressure synthesis, structure and magnetic properties of Ca_25Co_22O_56(OH)_28 are reported. The compound has a misfit structure, consisting of double, square calcium oxide hydroxide rock-salt-like layers between hexagonal CoO_2 layers. The misfit compound crystallizes in the monoclinic space group C2/m, and can be characterized by the coexistence of two subsystems with common a=4.893(5)A, c=8.825(9)A and b=95.745(8) parameters, and different b parameters: b_RS=4.894(5)A, and b_HEX=2.809(3)A, for the rock-salt and hexagonal type planes respectively. The compound shows Curie-Weiss paramagnetism with an antiferromagnetic Weiss temperature of -43K and a reduced Co moment. Substantial deviations from Curie-Weiss behavior are seen below 50K with no indication of magnetic ordering. No superconductivity was observed down to a temperature of 2K.
description: axis labels Fig.5 revised
Pharmacognostical, Phytochemical and Biological Studies on Holarrhena antidysenterica Wall: A Review (Part-I)
Creators: name: TRIPATHI, Y.C.
Publisher: name: figshare
Year: 2020
Subjects: subject: 111501 Basic Pharmacology
subject: FOS: Clinical medicine
subject: 111502 Clinical Pharmacology and Therapeutics
subject: 110399 Clinical Sciences not elsewhere classified
subject: 111101 Clinical and Sports Nutrition
subject: FOS: Health sciences
subject: 110499 Complementary and Alternative Medicine not elsewhere classified
subject: Health Care
subject: 111712 Health Promotion
subject: 119999 Medical and Health Sciences not elsewhere classified
subject: FOS: Other medical sciences
subject: 111504 Pharmaceutical Sciences
subject: 111599 Pharmacology and Pharmaceutical Sciences not elsewhere classified
subject: 111716 Preventive Medicine
subject: 111717 Primary Health Care
subject: 111799 Public Health and Health Services not elsewhere classified
subject: 110403 Traditional Aboriginal and Torres Strait Islander Medicine and Treatments

description: The plant Holarrhena antidysenterica Wall Linn. (Family Apocynaceae) is commonly known in India as Kutaj. In therapeutics, the extract of the bark employed; it is also used as Kurchi bismuthiodide which consists of the bismuthiodides of the mixed alkaloids of the bark. An indigenous preparation of the plant known as ‘Kutjaristha’ is extensively used in treatment of gastrointestinal disorder like diarrhea and dysentery. There is a large amount of literature on Kutaj alkaloids, yet their chemicals and therapeutic aspects have not been exhaustively surveyed. The present review is an attempt to survey and critically review the large amount of work that has been carried out so for on the pharmacognostical, phytochemical and biological activity of H. antidysenterica.
THE EFFECT OF SOIL CONSERVATION ON TECHNICAL EFFICIENCY: EVIDENCE FROM CENTRAL AMERICA
Creators: name: Solis, Daniel
name: Bravo-Ureta, Boris E.
name: Quiroga, Ricardo E.
name: Solis, Daniel
name: Bravo-Ureta, Boris E.
name: Quiroga, Ricardo E.
Publisher: name: Unknown
Year: 2006
Subjects: Land Economics/Use

description: This study evaluates technical efficiency (TE) levels for rural households under high and low levels of investments in soil conservation in El Salvador and Honduras. To correct for potential self-selectivity bias a household-level switching regression framework is implemented to estimate separate stochastic production frontiers for the two groups of households under analysis. The main results indicate that a systematic difference exists between the two studied groups. Specifically, households with higher levels of investments in soil conservation show higher average TE than those with a lower level of investments. Constrains in the rural land and credit markets appear to be the reason behind these differences. Our estimations indicate that for farms with lower levels of investments in soil conservation access to credit is a significant factor explaining the sources of inefficiency. Conversely, households with higher levels of investments in soil conservation present the highest partial output elasticity for land, the highest levels of TE and the smallest farms. This result could suggest the presence of a market failure in the land market which is denying access to land to the more efficient producers.
The Pristine Inner Galaxy Survey (PIGS) II: Uncovering the most metal-poor populations in the inner Milky Way
Creators: name: Arentsen, Anke
name: Starkenburg, Else
name: Martin, Nicolas F.
name: Aguado, David S.
name: Zucker, Daniel B.
name: Prieto, Carlos Allende
name: Hill, Vanessa
name: Venn, Kim. A.
name: Carlberg, Raymond G.
name: Hernández, Jonay I. González
name: Mashonkina, Lyudmila I.
name: Navarro, Julio F.
name: Sánchez-Janssen, Rubén
name: Schultheis, Mathias
name: Thomas, Guillaume F.
name: Youakim, Kris
name: Lewis, Geraint F.
name: Simpson, Jeffrey D.
name: Wan, Zhen
name: Cohen, Roger E.
name: Geisler, Doug
name: O'Connell, Julia E.
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: Metal-poor stars are important tools for tracing the early history of the Milky Way, and for learning about the first generations of stars. Simulations suggest that the oldest metal-poor stars are to be found in the inner Galaxy. Typical bulge surveys, however, lack low metallicity ([Fe/H] < -1.0) stars because the inner Galaxy is predominantly metal-rich. The aim of the Pristine Inner Galaxy Survey (PIGS) is to study the metal-poor and very metal-poor (VMP, [Fe/H] < -2.0) stars in this region. In PIGS, metal-poor targets for spectroscopic follow-up are selected from metallicity-sensitive CaHK photometry from the CFHT. This work presents the ~250 deg^2 photometric survey as well as intermediate-resolution spectroscopic follow-up observations for ~8000 stars using AAOmega on the AAT. The spectra are analysed using two independent tools: ULySS with an empirical spectral library, and FERRE with a library of synthetic spectra. The comparison between the two methods enables a robust determination of the stellar parameters and their uncertainties. We present a sample of 1300 VMP stars -- the largest sample of VMP stars in the inner Galaxy to date. Additionally, our spectroscopic dataset includes ~1700 horizontal branch stars, which are useful metal-poor standard candles. We furthermore show that PIGS photometry selects VMP stars with unprecedented efficiency: 86%/80% (lower/higher extinction) of the best candidates satisfy [Fe/H] < -2.0, as do 80%/63% of a larger, less strictly selected sample. We discuss future applications of this unique dataset that will further our understanding of the chemical and dynamical evolution of the innermost regions of our Galaxy.
description: accepted for publication in MNRAS, 17 pages, 9 figures
On Monopoles and Domain Walls
Creators: name: Hanany, Amihay
name: Tong, David
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The purpose of this paper is to describe a relationship between maximally supersymmetric domain walls and magnetic monopoles. We show that the moduli space of domain walls in non-abelian gauge theories with N flavors is isomorphic to a complex, middle dimensional, submanifold of the moduli space of U(N) magnetic monopoles. This submanifold is defined by the fixed point set of a circle action rotating the monopoles in the plane. To derive this result we present a D-brane construction of domain walls, yielding a description of their dynamics in terms of truncated Nahm equations. The physical explanation for the relationship lies in the fact that domain walls, in the guise of kinks on a vortex string, correspond to magnetic monopoles confined by the Meissner effect.
description: 22 pages, 5 figures
Economic Impacts of the Conservation Reserve Program: A General Equilibrium Framework
Creators: name: Taheripour, Farzad
name: Taheripour, Farzad
Publisher: name: Unknown
Year: 2006
Subjects: subject: Environmental Economics and Policy
subject: land retirement
subject: slippage effect
subject: efficiency cost
subject: agricultural pollution
subject: tax system

description: This article uses a general equilibrium framework and econometric analyses to examine economic wide impacts of the Conservation Reserves Program. It determines direct and indirect factors which affect the economic efficiency of the program and shows their magnitudes. It shows that the interaction between the program and the tax system causes indirect efficiency costs but the interaction between the program and the agricultural support subsidies generate economic gains. The program has the potential to distort the labor market and cause efficiency losses form this channel. However the analytical model shows that trade can reduce social costs of the policy because a part of the burden of the policy can be passed on to foreign consumers of crop products through the world market. The numerical results show that at the current level of acreage reduction (34 millions acres), the marginal cost of spending one more dollar on the program is about $1.9 for the US economy. In addition, the numerical results illustrate that the program has the potential to generate different and significant unintended economic impacts. For example, depending on the parameters of the model, the program can raise the prices of land up to 10.6%, generate up to 20% land conversion, and raise the demand for nitrogen fertilizer up to 4.2% at the current level of acreage reduction. Finally, the empirical regression results demonstrate that the program has affected the production behavior of the crop industry significantly. In particular, the program has increased the demand for fertilizer and labor and has decreased the demand for land and capital.
INCORPORATING UNCERTAINTY IN INTEGRATED ASSESSMENT MODELING
Creators: name: Mooney, Sian
name: Antle, John M.
name: Capalbo, Susan Marie
name: Paustian, Keith H.
name: Mooney, Sian
name: Antle, John M.
name: Capalbo, Susan Marie
name: Paustian, Keith H.
Publisher: name: Unknown
Year: 2003
Subjects: Risk and Uncertainty

description: This paper examines how uncertainty analysis can be used to examine parameter uncertainty; determine the expected value of model outcomes and the range of possible model outcomes for a non-linear integrated economic and biophysical model.
Effects of WIC Program Participation on Food Consumption and Diet Quality
Creators: name: Chandran, Ram
name: Chandran, Ram
Publisher: name: Unknown
Year: 2003
Subjects: Food Consumption/Nutrition/Food Safety

description: This paper examines the effect of WIC program Participation on food consumption and diet quality of U.S. children between 2 and 4 years of age. Diet quality is assessed using the Healthy Eating Index, U.S. Department of Agriculture's instrument for measuring overall diet quality incorporating ten recommended components of dietary guidelines. The study has found that WIC program participation has significant positive influence in improving diet quality as measured by HEI and several of its components. The analysis has also indicated that the WIC program has significant positive influence in reducing sugar consumption by children. This research and the results presented have potential significance for researchers, economists and policy makers focusing on the determinants of children's diets and the role of Federal food assistance and nutrition education programs.
118. The `plane of satellites' problem
Creators: name: Perryman, Michael
Publisher: name: Zenodo
Year: 2023

description: Since the emergence of the Lambda CDM parameterisation of the standard `big bang' cosmological model in the late 1990s, various difficulties emerged in reconciling numerical simulations with observations at galaxy scales. Here I describe the `plane of satellites' problem, and how Gaia EDR3 data has been used to resolve it.
[Absalons bispestav]
Creators: name: Mathiesen, Henrik
Publisher: name: Unknown
Year: 0
Subjects: Udefinert

description: Tegning av Absalons bispestav. Bispestaven ligger i Nationalmuseet i København.
description: Mathiesen kan ha tegnet bispestaven på en av sine København-reiser siste halvdel av 1800-tallet.
Quantum trimer models and topological SU(3) spin liquids on the kagome lattice
Creators: name: Jandura, Sven
name: Iqbal, Mohsin
name: Schuch, Norbert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We construct and study quantum trimer models and resonating SU(3)-singlet models on the kagome lattice, which generalize quantum dimer models and the Resonating Valence Bond wavefunctions to a trimer and SU(3) setting. We demonstrate that these models carry a Z_3 symmetry which originates in the structure of trimers and the SU(3) representation theory, and which becomes the only symmetry under renormalization. Based on this, we construct simple and exact parent Hamiltonians for the model which exhibit a topological 9-fold degenerate ground space. A combination of analytical reasoning and numerical analysis reveals that the quantum order ultimately displayed by the model depends on the relative weight assigned to different types of trimers -- it can display either Z_3 topological order or form a symmetry-broken trimer crystal, and in addition possesses a point with an enhanced U(1) symmetry and critical behavior. Our results accordingly hold for the SU(3) model, where the two natural choices for trimer weights give rise to either a topological spin liquid or a system with symmetry-broken order, respectively. Our work thus demonstrates the suitability of resonating trimer and SU(3)-singlet ansatzes to model SU(3) topological spin liquids on the kagome lattice.
AN ANALYSIS OF TOTAL FACTOR PRODUCTIVITY GROWTH IN CHINA'S AGRICULTURAL SECTOR
Creators: name: Hsu, Shih-Hsun
name: Yu, Ming-Miin
name: Chang, Ching-Cheng
name: Hsu, Shih-Hsun
name: Yu, Ming-Miin
name: Chang, Ching-Cheng
Publisher: name: Unknown
Year: 2003
Subjects: Productivity Analysis

description: A panel data of 27 provinces in China is used to analyze the productivity growth in China's agricultural sector over the period 1984-1999. We first compute the output-orientated Malmquist productivity indexes and its decompositions using non-parametric DEA (Data Envelopment Analysis) approach. Tobit regressions are then used to identify the major determinants of TFP growth and its components.
An Atlas of Spectrophotometric Landolt Standard Stars
Creators: name: Stritzinger, Maximilian
name: Suntzeff, Nicholas B.
name: Hamuy, Mario
name: Challis, Peter
name: Demarco, Ricardo
name: Germany, Lisa
name: Soderberg, A. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present CCD observations of 102 Landolt standard stars obtained with the R-C spectrograph on the CTIO 1.5 m telescope. Using stellar atmosphere models we have extended the flux points to our six spectrophotometric secondary standards, in both the blue and the red, allowing us to produce flux-calibrated spectra that span a wavelength range from 3050 Åto 1.1 \micron. Mean differences between UBVRI spectrophotometry computed using Bessell's standard passbands and Landolt's published photometry is found to be 1% or less. Observers in both hemispheres will find these spectra useful for flux-calibrating spectra and through the use of accurately constructed instrumental passbands be able to compute accurate corrections to bring instrumental magnitudes to any desired standard photometric system (S-corrections). In addition, by combining empirical and modeled spectra of the Sun, Sirius and Vega, we calculate and compare synthetic photometry to observed photometry taken from the literature for these three stars.
description: Added referee's comments, minor corrections, replaced Table 10
The Evolution of Structure in X-ray Clusters of Galaxies
Creators: name: Jeltema, Tesla E.
name: Canizares, Claude R.
name: Bautz, Mark W.
name: Buote, David A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using Chandra archival data, we quantify the evolution of cluster morphology with redshift. Clusters form and grow through mergers with other clusters and groups, and the amount of substructure in clusters in the present epoch and how quickly it evolves with redshift depend on the underlying cosmology. Our sample includes 40 X-ray selected, luminous clusters from the Chandra archive, and we quantify cluster morphology using the power ratio method (Buote & Tsai 1995). The power ratios are constructed from the moments of the X-ray surface brightness and are related to a cluster's dynamical state. We find that, as expected qualitatively from hierarchical models of structure formation, high-redshift clusters have more substructure and are dynamically more active than low-redshift clusters. Specifically, the clusters with z>0.5 have significantly higher average third and fourth order power ratios than the lower redshift clusters. Of the power ratios, $P_3/P_0$ is the most unambiguous indicator of an asymmetric cluster structure, and the difference in $P_3/P_0$ between the two samples remains significant even when the effects of noise and other systematics are considered. After correcting for noise, we apply a linear fit to $P_3/P_0$ versus redshift and find that the slope is greater than zero at better than 99% confidence. This observation of structure evolution indicates that dynamical state may be an important systematic effect in cluster studies seeking to constrain cosmology, and when calibrated against numerical simulations, structure evolution will itself provide interesting bounds on cosmological models.
description: 42 pages, 6 figures, ApJ accepted. For a version of the paper containing an appendix with images of all of the clusters, see http://www.ociw.edu/~tesla/structure.ps.gz
Myliobatis Cuvier 1816
Creators: name: Cicimurri, David J.
name: Ebersole, Jun A.
name: Stringer, Gary L.
name: Starnes, James E.
name: Phillips, George E.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Elasmobranchii
Myliobatiformes
Myliobatidae
Myliobatis

description: Genus Myliobatis Cuvier, 1816
Type species
Raja aquila Linnaeus, 1758, Extant.
description: Published as part of Cicimurri, David J., Ebersole, Jun A., Stringer, Gary L., Starnes, James E. & Phillips, George E., 2025, Late Oligocene fishes (Chondrichthyes and Osteichthyes) from the Catahoula Formation in Wayne County, Mississippi, USA, pp. 1-131 in European Journal of Taxonomy 984 (1) on page 64, DOI: 10.5852/ejt.2025.984.2851, http://zenodo.org/record/15126034
DO TROPICAL FORESTS PROVIDE A SAFETY NET? INCOME SHOCKS AND FOREST EXTRACTION IN MALAWI
Creators: name: Fisher, Monica G.
name: Shively, Gerald E.
name: Fisher, Monica G.
name: Shively, Gerald E.
Publisher: name: Unknown
Year: 2003
Subjects: Resource /Energy Economics and Policy

description: We use seasonal household data on income shocks and forest extraction to study how households in Malawi use forests to cope with income shortfalls. In particular, we study household response to receipt of a positive income shock delivered in the form of a technology assistance package. We estimate a random-effects model of forest extraction to examine whether household forest use is responsive to income shocks received in a prior period. We also measure the extent to which households subsequently save out of transitory income. Findings indicate that forest extraction by asset-poor households was more responsive to income shocks than forest extraction by better-off households. Findings also suggest households save out of transitory income, and in the process accumulate physical assets that may reduce their dependence on forests for weathering subsequent income shocks. Results show how policies aimed at poverty alleviation among those living adjacent to tropical forests can also alleviate forest pressure.
NONPOINT SOURCE AND CARBON SEQUESTRATION CREDIT TRADING: WHAT CAN THE TWO LEARN FROM EACH OTHER?
Creators: name: Stephenson, Kurt
name: Bosch, Darrell J.
name: Stephenson, Kurt
name: Bosch, Darrell J.
Publisher: name: Unknown
Year: 2003
Subjects: Environmental Economics and Policy
Resource /Energy Economics and Policy

description: Emission trading programs have been discussed with respect to achieving water quality objectives and future caps on carbon emissions. A significant part of this literature explores the institutional and technical design issues associated with trades involving nonpoint effluent sources and carbon sequestration. This paper explores conceptual linkages between the nonpoint and carbon sequestration programs and identifies potential areas where cross fertilization can benefit research and policy design of trading programs for environmental protection.
ESTIMATION OF A DISCRETE CHOICE MODEL WHEN INDIVIDUAL CHOICES ARE NOT OBSERVABLE
Creators: name: Kurkalova, Lyubov A.
name: Rabotyagov, Sergey S.
name: Kurkalova, Lyubov A.
name: Rabotyagov, Sergey S.
Publisher: name: Unknown
Year: 2003
Subjects: Consumer/Household Economics

description: This paper presents an econometric technique for circumventing the lack of individual choice data in a framework of binary choice model by utilizing aggregate choice data. The probability of observing a certain number of individuals making choice A out of the total number of individuals in a group is presented as a sum of probabilities of disjoint events, in which some individuals are picked to make choice A, and others are not. These probabilities are then used to form a likelihood function. The model, which is estimated using the method of maximum likelihood, performs favorably in an application to real discrete choice data.
Antifungal activity of alkaloids of Tiliacora racemosa
Creators: name: TRIPATHI, Y.C.
Publisher: name: figshare
Year: 2020
Subjects: subject: 30199 Analytical Chemistry not elsewhere classified
subject: FOS: Chemical sciences
subject: 30401 Biologically Active Molecules
subject: 30502 Natural Products Chemistry
subject: Organic Chemistry
subject: 30606 Structural Chemistry and Spectroscopy

description: Fungicidal activity of the alkaloids Tiliacorinine and nortiliacorinine A isolated from Tiliacora racemosa Colebr. has been studied. Tiliacorinine was found to be promising antifungal agent.
Structural and stratigraphic relationships within the Tchaikazan River area, southwestern British Columbia : implications for the tectonic evolution of the southern Coast Belt
Creators: name: Israel, Steve A.
Publisher: name: University of British Columbia
Year: 2009

description: New stratigraphic and structural data combined with U-Pb ages from the Tchaikazan River area requires the re-assignment of Early Cretaceous volcanic, volcaniclastic and sedimentary rocks from the Taylor Creek Group to three new informal successions, the Twin Creek, the Tchaikazan River and the Falls River successions. The Twin Creek succession is composed of marine sedimentary rocks that have been intruded by an aplitic/dacitic dyke which yielded a U-Pb age of 251 ± 16 Ma. The Tchaikazan River succession which is divided into a lower sedimentary facies and an upper volcanic facies, yields fossil ages indicating a Hauterivian or older age for the succession. The Falls River succession is dominated by volcanic breccias and bedded crystal tuffs and volcaniclastic sandstones of intermediate to felsic composition in the lower most portions and marine turbidites and shales in the upper parts. The age of the Falls River succession is not well constrained but is interpreted to be between Hauterivian and Albian. Previously unrecognized latest Paleozoic rocks of the Twin Creek succession are correlated with rocks located to the east and are interpreted as basement to the Cadwallader Terrane, and thus intimately associated with the southeast Coast Belt. The Early Cretaceous Tchaikazan River succession is correlated with rocks of the Eastern Waddington Belt which is correlated with the Early Cretaceous Gambier Group of the southwest Coast Belt. The study area represents the transition between volcanic dominated deposits of the southwest Coast Belt and sedimentary deposits of the Tyaughton Basin of the southeast Coast Belt. Early Cretaceous volcanic rocks of the study area are the source for mid-Cretaceous Taylor Creek Group sedimentary rocks of the Tyaughton Basin. Identification of high strain, sinistral shear zones supports the hypothesis that large scale, orogen parallel sinistral movement occurred from Hauterivian to mid-Cretaceous times. Ar-Ar dating of high strain sinistral shear zone records sinistral movement ca. 90 Ma. The relationships between rocks of the southeast Coast Belt with those of the southwest Coast Belt suggests that the two belts, and thus accretion of the Insular superterrane to the western margin of the Intermontane superterrane occurred in at least Hauterivian times.
FARM PROGRAM PAYMENTS AND ECONOMIES OF SCALE
Creators: name: Miller, James C.
name: Coble, Keith H.
name: Vergara, Oscar
name: Miller, James C.
name: Coble, Keith H.
name: Vergara, Oscar
Publisher: name: Unknown
Year: 2003
Subjects: Agricultural and Food Policy

description: Economies of scale are investigated and the impacts of farm payment limitations for producers of cotton and soybeans in Mississippi are evaluated. Limits proposed by the Senate following the recent farm bill debate are overlaid on estimates of the scale economies for the cost of producing these crops to determine the different impacts on farm efficiency and welfare benefits.
Central nervous system and anti-inflammatory activities of alkaloids of Fumaria indica
Creators: name: TRIPATHI, Y.C.
Publisher: name: figshare
Year: 2020
Subjects: subject: 30199 Analytical Chemistry not elsewhere classified
subject: FOS: Chemical sciences
subject: Biochemistry
subject: 30401 Biologically Active Molecules
subject: 30301 Chemical Characterisation of Materials
subject: 39999 Chemical Sciences not elsewhere classified
subject: 30502 Natural Products Chemistry
subject: Organic Chemistry
subject: 30108 Separation Science
subject: 30606 Structural Chemistry and Spectroscopy

description: Central nervous system (CNS) and anti-inflammatory activities of the alkaloids narceimine, narlumidine, adlumidine and a natural salt protopine nitrate isolated from Fumaria indica have been studied. Amongst these protopine nitrate was found to be CNS stimulant and all of them were found to be anti-inlammatory agents. The study provides new addition in the existing list of CNS stimulant and anti-inflammatory compounds.
Understanding the U(1) problem through dyon configuration in the Abelian projection
Creators: name: Kato, Seikou
name: Kondo, Kei-Ichi
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We give a short review of the recently obtained result that the magnetic monopole promoted to the dyon due to the vacuum angle $θ$ resolves the U(1) problem in the sense that the dyon obtained in this way gives a dominant contribution to the topological susceptibility
description: 6 pages, 1 figure, Talk presented at Lattice 2005 (topology and confinement)
Some pharmacological studies on Zizyphus rugosa saponins
Creators: name: TRIPATHI, Y.C.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: 30401 Biologically Active Molecules
subject: FOS: Chemical sciences
subject: 30502 Natural Products Chemistry
subject: Organic Chemistry
subject: 30504 Organic Green Chemistry

description: Triterpenoid saponin isolated from Zizyphus rugosa bark has been pharmacologically screened and report to possesses anticonvulsant , analgesic and tranquillizing activities.
Extinct radio pulsars as a source of subrelativistic positrons
Creators: name: Istomin, Ya. N.
name: Chernyshov, D. O.
name: Sob'yanin, D. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Extinct radio pulsars, in which stationary, self-sustaining generation of a relativistic electron-positron plasma becomes impossible when rotation brakes down, can be sources of a subrelativistic flux of positrons and electrons. We assume that the observed excess of positrons in the bulge and the disc of the Galaxy is associated with these old neutron stars. The production of pairs in their magnetospheres occurs due to one-photon absorption of gamma quanta of the Galactic and extragalactic backgrounds. The cascade process of plasma production leads to the flux of positrons escaping from the open magnetosphere $\simeq 3 \times 10^{34} \text{ s}^{-1}$. The total flux of positrons from all old Galactic neutron stars with rotational periods $1.5 < P < 35$ s is $\simeq 3 \times 10^{43} \text{ s}^{-1}$. The energy of positrons is less than $\simeq 10$ MeV. The estimated characteristics satisfy the requirements for the positron source responsible for the 511-keV Galactic annihilation line.
description: 7 pages, 2 figures, MNRAS accepted
Information Sharing and Oligopoly in Agricultural Markets: The Role of Cooperative Bargaining Associations
Creators: name: Hueth, Brent
name: Marcoul, Philippe
name: Hueth, Brent
name: Marcoul, Philippe
Publisher: name: Unknown
Year: 2003
Subjects: Agribusiness

description: We study incentives for information sharing (about uncertain future demand for final output) among agricultural intermediaries in imperfectly competitive markets for farm output. Information sharing always increases expected grower and consumer surplus, but may reduce expected intermediary profits. Even when expected intermediary profits increase with information sharing, firms face a Prisoner's Dilemma where it is privately rational for each firm to withhold information, given that other firms report truthfully. This equilibrium can be avoided if firms' information reports are verifiable, and if firms commit to an ex ante contract that forces ex post information revelation. We argue that agricultural bargaining represents one means to achieve verifiability and to implement such a contract.
Rees cones and monomial rings of matroids
Creators: name: Villarreal, Rafael H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 13H10, 05C90, 05C75

description: Using linear algebra methods we study certain algebraic properties of monomial rings and matroids. Let I be a monomial ideal in a polynomial ring over an arbitrary field. If the Rees cone of I is quasi-ideal, we express the normalization of the Rees algebra of I in terms of an Ehrhart ring. We introduce the basis Rees cone of a matroid (or a polymatroid) and study their facets. Some applications to Rees algebras are presented. It is shown that the basis monomial ideal of a matroid (or a polymatroid) is normal.
description: 9 pages
Abelian subgroups of two-dimensional Artin groups
Creators: name: Martin, Alexandre
name: Przytycki, Piotr
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We classify abelian subgroups of two-dimensional Artin groups.
description: This article was originally Section 6 from the article arXiv:1906.03154, which is being split into two