cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A comprehensive review on catalytic O-alkylation of phenol and hydroquinone
Creators: name: Bhongale, Priyanka
name: Joshi, Sunil
name: Mali, Nilesh
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The alkylation process involves two competitive paths of O- and C-alkylation and achieving better selectivity for desired products is a very challenging problem. The development of new process for synthesis of O-methylated products of phenol and dihydric phenols is a subject of high industrial and academic interest. Alkyl phenyl ethers, especially anisole and 4-methoxyphenol, have captivated significant interest due to their increasing applications in pharmaceutical industries. The main emphasis of the present review is to explore the recent development in two catalytic O-alkylation processes. The first process is O-methylation of phenol into anisole and another is selective mono O-methylation of hydroquinone into 4-methoxyphenol. The present article covers O-alkylation methods with methanol and dimethyl carbonate as alkylating agent over various acidic and basic catalytic systems. The catalyst systems analyzed involves Bronsted and Lewis acidic and basic ionic liquids, conventional acids, metal oxides, solid acid and basic catalysts, hydrotalcites, various zeolites and heteropolyacids. The mechanistic behavior of alkylation reactions in presence of different catalytic system is reviewed critically which is important to design new and/or modified catalyst in order to maximize the yield of desired product. Additionally, an influence of reaction parameters, role of catalyst and their active sites on product distribution is described. The review paper gives useful insight for researchers in the field of catalysis and reaction engineering of alkylation reactions. Understandings of the reaction pathways will help in developing reliable kinetic models necessary for process scale-up to industrial scale reactor system.
Generalized Skyrme Crystals
Creators: name: Lobo, J. Silva
name: Ward, R. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This letter deals with triply-periodic (crystalline) solutions in a family of Skyrme systems, namely where the field takes values in the squashed 3-sphere. The family includes the standard Skyrme model (round 3-sphere), and the Skyrme-Faddeev case (maximal squashing). In the round case, the lowest-energy crystal is the well-known cubic lattice of half-skyrmions; but in the squashed case the minimal-energy crystal structures turn out to be different. We describe some of the solutions that arise, including arrays of vortices and multi-sheeted structures.
description: 5 pages, 4 figures
Agrionoptera sexlineata Selys.
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Agrionoptera
Agrionoptera sexlineata

description: 88. Agrionoptera sexlineata Selys. - N. W. Surnatra (Ris).
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 13, DOI: 10.5281/zenodo.3251875
description: {"references": ["Ris. F. Odonaten von Sumatra, gesammelt von Edward Jacobson. Zool. Meded. Leiden. 10. 1927."]}
White dwarf populations in globular clusters
Creators: name: Goldsbury, Ryan
Publisher: name: University of British Columbia
Year: 2016

description: This thesis details three distinct projects that explore stellar populations in Milky Way globular clusters. In the first, a method of modelling mass segregation in clusters is presented. The model is fit to 54 clusters and the best fit parameters are presented in tabular form. The newly derived parameter that indicates the amount of mass segregation correlates strongly with other dynamical cluster parameters. In the second study, white dwarf data in the cluster 47 Tucanae are used to construct an empirical relation between temperature and time for these stars. The modified data are compared to theoretical cooling models from four different research groups. We find disagreement between all of the models and the data. The models are also inconsistent with each other. In the third investigation, new UV white dwarf data in 47 Tuc is used to constrain the hydrogen mass fraction and neutrino production rates in cooling white dwarfs. A much different approach from the second project is used. The data are left untouched and the model is transformed to the space in which the data exist. Using the unbinned maximum likelihood statistic, the model’s parameter space is explored with MCMC sampling. A constraint on the rate of neutrino production in white dwarfs comes from this analysis.
Matching the Standard Model to HQET and NRQCD
Creators: name: Assi, B.
name: Kniehl, Bernd
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020
Subjects: Heavy Quark Effective Theory
quantum chromodynamics: nonrelativistic
operator: Wilson
quark: operator
CP: violation
form factor
numerical calculations

description: We find the leading electro-weak corrections to the HQET/NRQCD Lagrangian. These corrections appear in the Wilson coefficients of the two and four quark operators and are considered here up to $\mathcal{O}(1/m^3)$ at one-loop order. The two quark operators up to this order will include new CP-violating terms, which we derived analogously to the CP preserving QCD result at one-loop order.
title: CERN Yellow Reports: Conference Proceedings, Vol 2 (2018): Proceedings of "Tracking Collimation" ICFA Workshop
title: Proceedings of "Tracking Collimation" ICFA Workshop
titleType: AlternativeTitle
Creators: name: CERN
Publisher: name: CERN
Year: 1970

description: Beam collimation and machine protection have become essential aspects for modern high stored energy accelerators. The understanding of operating facilities and the performance extrapolations for future machines demands unprecedented accuracy in simulations of beam cleaning systems. This is critical for the Large Hadron Collider (LHC) and for its High-Luminosity (HL) upgrade project and for the Future Circular Collider (FCC) presently under study, but also for a number of other lower energy accelerators that operate with high hadron beam intensities. These simulations require precise tracking of halo particles with large betatron amplitudes and off-momentum errors as well as precise modelling for the scattering with collimator materials and aperture checks. Several tools have been developed by different teams, putting together the required competence to improve simulation accuracy on all fronts. High-efficient cleaning simulations require in addition very demanding CPU power, as high statistics is required for loss predictions at the 1e-5 level and below. In recent years, important progress was made in the context of FP7 programmes on LHC collimation studies.
Symmetries of K3 sigma models
Creators: name: Gaberdiel, Matthias R.
name: Hohenegger, Stefan
name: Volpato, Roberto
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that the supersymmetry-preserving automorphisms of any non-linear sigma-model on K3 generate a subgroup of the Conway group Co_1. This is the stringy generalisation of the classical theorem, due to Mukai and Kondo, showing that the symplectic automorphisms of any K3 manifold form a subgroup of the Mathieu group M_{23}. The Conway group Co_1 contains the Mathieu group M_{24} (and therefore in particular M_{23}) as a subgroup. We confirm the predictions of the Theorem with three explicit CFT realisations of K3: the T^4/Z_2 orbifold at the self-dual point, and the two Gepner models (2)^4 and (1)^6. In each case we demonstrate that their symmetries do not form a subgroup of M_{24}, but lie inside Co_1 as predicted by our Theorem.
description: 40 pages
Potamarcha obscura Ramb. 1890
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Potamarcha
Potamarcha obscura

description: 89. Potamarcha obscura (Ramb.) - Common everywhere.
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 13, DOI: 10.5281/zenodo.3251875
Operator formalism for the Wigner phase distribution
Creators: name: Subeesh, T.
name: Sudhir, Vivishek
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The probability distribution for finding a state of the radiation field in a particular phase is described by a multitude of theoretical formalisms; the phase-sensitivity of the Wigner quasi-probability distribution being one of them. We construct a hermitian phase operator for this Wigner phase. We show that this operator is complete and also elucidate a set of complete but non-orthogonal states that seems to be naturally associated with such an operator. Further we show that our operator satisfies a weak equivalence relation with the Pegg-Barnett operator, thus showing that the essential phase information furnished by both formalisms are the same. It is also shown that this operator gives results which are in correct agreement with the expected uniform phase distribution of a Fock state.
description: 5 pages
OLS regression from Tail feather strength in tail-assisted climbing birds is achieved through geometric, not material change
Creators: name: Dickinson, Edwin
name: Young, Melody W.
name: DeLeon, David
name: Bas, Burcak
name: Zou, Bettina
name: Ratkiewicz, Aleksandra
name: Beatty, Brian L.
name: Granatosky, Michael C.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: 110601 Biomechanics
subject: FOS: Health sciences

description: Non phylogenetically-adjusted regressions of each variable against body mass
Transforming Developing Countries Agrifood Value Chains
Creators: name: Hidayati, Dwi Ratna
name: Garnevska, Elena
name: Childerhouse, Paul
Publisher: name: International Journal on Food System Dynamics
Year: 2021
Subjects: Value Chain Transformation; Maturity Level; Developing Countries; Agrifood, Cashew Nuts

description: The global agrifood trade is highly reliant on developing countries, which affects value chain transformation and which often results in an imbalance of governance and value addition. In order to address this imbalance and increase the overall value creation, this paper develops and empirically tests a framework for agrifood value chain transformation in developing countries. The research employs a qualitative methodology to explore the proposed framework, which is based on a value chain maturity assessment of current practice and identification of a transformation route. Three primary value chain maturity levels in developing countries are established: traditional, managed, and best practice. Each level is determined using key indicators relating to governance (vertical-horizontal coordination, and information flow) and value addition (value orientation, safety, and quality). The application of this framework to Indonesia’s cashew nuts value chain reveals a mix of traditional and managed practices. The short-medium term transformation focuses on enabling farmers, as the decoupled actors, to advance from a traditional to a more managed chain. Further, the major wholesaler and exporter are identified as highly influential in driving the transformation process. The long-term transformation focuses on developing best practices regarding branded value addition and collaborative governance. This framework offers a novel value chain transformation approach based on a maturity assessment technique leading to the identification of transformation routes. This method takes a holistic transformation approach via the evaluation all the value chain actors’ governance and value-addition capabilities. Follow-up research is required to identify the enablers and barriers of globalised value chain transformation, especially with respect to sustainability.
description: International Journal on Food System Dynamics, Vol 12, No 4 (2021)
Supplementary information from Uncertainty about old information results in differential predator memory in tadpoles
Creators: name: Crane, Adam L.
name: Achtymichuk, Gabrielle H.
name: Rivera-Hernández, Ita A. E.
name: Pregola, Alexyz A.
name: Thapa, Himal
name: Ferrari, Maud C. O.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour

description: Supplementary tables and figures for ‘Uncertainty about old information results in differential predator memory in tadpoles’.
The optical microscopy with virtual image breaks a record: 50-nm resolution imaging is demonstrated
Creators: name: Wang, Zengbo
name: Guo, Wei
name: Li, Lin
name: Liu, Zhu
name: Luk'yanchuk, Boris
name: Chen, Zaichun
name: Hong, Minghui
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate a new 'microsphere nanoscope' that uses ordinary SiO2 microspheres as superlenses to create a virtual image of the object in near field. The magnified virtual image greatly overcomes the diffraction limit. We are able to resolve clearly 50-nm objects under a standard white light source in both transmission and reflection modes. The resolution achieved for white light opens a new opportunity to image viruses, DNA and molecules in real time.
Cratilla metallica Brauer
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Cratilla
Cratilla metallica

description: 91. Cratilla metallica (Brauer). - Eastcoast Gvt.: Deli. Soekaranda (Kruger). Westcoast Res.: Padangsche Bovenlanden (Ris). Palembang. Kloeang. native coIl. S. Lampoeng Res.: Talangpadang. Wailima. Kotaagoeng. Drescher. Toxopeus and Author leg.
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 14, DOI: 10.5281/zenodo.3251875
description: {"references": ["Kruger. L. Die Odonaten von Sumatra. I ~ III. Stett. ent. Zeitg. 59 - 63. 1898 - 1902.", "Ris. F. Odonaten von Sumatra, gesammelt von Edward Jacobson. Zool. Meded. Leiden. 10. 1927."]}
Precisely quantifying software information flow
Creators: name: Enescu, Mihai Adrian
Publisher: name: University of British Columbia
Year: 2016

description: A common attack point in a program is the input exposed to the user. The adversary crafts a malicious input that alters some internal state of the program, in order to acquire sensitive data, or gain control of the program's execution. One can say that the input exerts a degree of influence over specific program outputs. Although a low degree of influence does not guarantee the program's resistance to attacks, previous work has argued that a greater degree of influence tends to provide an adversary with an easier avenue of attack, indicating a potential security vulnerability. Quantitative information flow is a framework that has been used to detect a class of security flaws in programs, by measuring an attacker's influence. Programs may be considered as communication channels between program inputs and outputs, and information-theoretic definitions of information leakage may be used in order to measure the degree of influence which a program's inputs can have over its outputs, if the inputs are allowed to vary. Unfortunately, the precise information flow measured by this definition is difficult to compute, and prior work has sacrificed precision, scalability, and/or automation. In this thesis, I show how to compute this information flow (specifically, channel capacity) in a highly precise and automatic manner, and scale to much larger programs than previously possible. I present a tool, nsqflow, that is built on recent advances in symbolic execution and SAT solving. I use this tool to discover two previously-unknown buffer overflows. Experimentally, I demonstrate that this approach can scale to over 10K lines of real C code, including code that is typically difficult for program analysis tools to analyze, such as code using pointers.
Agri-Food Value Chain Performance during the COVID-19 Pandemic: An Empirical Study of Chu-mango Business Linkages in Dong Thap, Vietnam
Creators: name: Kiet, Truong Hong Vo Tuan
name: Nguyen, Thoa Thi Kim
name: Nguyen, Thoa Thi Kim
name: Pham, Nguyen Thi
name: Pham, Nguyen Thi
Publisher: name: International Journal on Food System Dynamics
Year: 2021
Subjects: Chu-mango; business linkage; value chain performance

description: This study aims to identify important factors that directly influence value chain performance (quality, responsiveness, flexibility and efficiency), which are explained by value chain integration (collaboration, commitment, coordination and joint decision-making) in the case of unexpected risk (the COVID-19 pandemic). This study contributes to maintaining the business linkage model among farmers – cooperatives – enterprises in the case of the COVID-19 pandemic and quickly recovering after the COVID-19 pandemic. Structural equation modelling (SEM) was used for data analysis following an iterative process based on theoretical and empirical analyses to obtain a structural model fit and test the research hypothesis. The findings indicate that the VCI positively influenced the VCP of Chu-mango business linkages at the 1% significance level through coordination (Beta = 0.345; construct reliability (CR) = 3.272), collaboration (Beta = 0.289; CR = 3.128), and joint decision-making (Beta = 0.324; CR = 3.245). This study provides empirical data on the relationship between VCI and VCP through the Chu -mango value chain in Dong Thap Province during the COVID-19 pandemic to raise awareness from stakeholders and encourage value chain thinking to improve performance. This result may pave the way for relevant policymakers to look for policies and strategies for better inclusiveness of stakeholders to show the importance of the VCI in improving the performance. Moreover, the study is an empirical case contributing to the agribusiness value chain in a developing country; it applies the agribusiness value chain of the tropical fruit domain and can be used for other agricultural products in other cases of unexpected risks.
description: International Journal on Food System Dynamics, Vol 12, No 4 (2021)
Strong-field dipole resonance. I. Limiting analytical cases
Creators: name: Uiberacker, Christoph
name: Jakubetz, Werner
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We investigate population dynamics in N-level systems driven beyond the linear regime by a strong external field, which couples to the system through an operator with nonzero diagonal elements. As concrete example we consider the case of dipolar molecular systems. We identify limiting cases of the Hamiltonian leading to wavefunctions that can be written in terms of ordinary exponentials, and focus on the limits of slowly and rapidly varying fields of arbitrary strength. For rapidly varying fields we prove for arbitrary $N$ that the population dynamics is independent of the sign of the projection of the field onto the dipole coupling. In the opposite limit of slowly varying fields the population of the target level is optimized by a dipole resonance condition. As a result population transfer is maximized for one sign of the field and suppressed for the other one, so that a switch based on flopping the field polarization can be devised. For significant sign dependence the resonance linewidth with respect to the field strength is small. In the intermediate regime of moderate field variation, the integral of lowest order in the coupling can be rewritten as a sum of terms resembling the two limiting cases, plus correction terms for N>2, so that a less pronounced sign-dependence still exists.
description: 34 pages, 1 figure
Wave Propagation and Quasinormal Mode Excitation on Schwarzschild Spacetime
Creators: name: Dolan, Sam R.
name: Ottewill, Adrian C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: To seek a deeper understanding of wave propagation on the Schwarzschild spacetime, we investigate the relationship between (i) the lightcone of an event and its caustics (self-intersections), (ii) the large-$l$ asymptotics of quasinormal (QN) modes, and (iii) the singular structure of the retarded Green function (GF) for the scalar field. First, we recall that the GF has a (partial) representation as a sum over QN modes. Next, we extend a recently-developed expansion method to obtain asymptotic expressions for QN wavefunctions and their residues. We employ these asymptotics to show (approximately) that the QN mode sum is singular on the lightcone, and to obtain approximations for the GF which are valid close to the lightcone. These approximations confirm a little-known prediction: the singular part of the GF undergoes a transition each time the lightcone passes through a caustic, following a repeating four-fold sequence. We conclude with a discussion of implications and extensions of this work.
description: 15 pages, 7 figures
MPEC 2023-H219 : 2011 LY20
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Constraining the Rate of Relativistic Jets from Tidal Disruptions Using Radio Surveys
Creators: name: Bower, Geoffrey C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Tidal disruption of stars by massive black holes produce transient accretion flows that flare at optical, UV, and X-ray wavelengths. At late times, these accretion flows may launch relativistic jets that can be detected through the interaction of the jet with the dense interstellar medium of the galaxy. We present an upper limit for the flux density of a radio counterpart to a tidal disruption event detected by GALEX that is a factor of 6 below theoretical predictions. We also examine existing radio surveys for transients with a time scale of 1 year and use these to set a $2 σ$ upper limit on the rate of tidal disruption events producing relativistic jets of ~14 x 10^-7 Mpc^-3 y^-1. This rate is an order of magnitude lower than the highest values from theoretical models and is consistent with detection rates from optical and X-ray surveys.
description: Accepted for publication in ApJL
The BET PROTAC inhibitor dBET6 protects against retinal degeneration and inhibits the cGAS-STING in response to light damage
Creators: name: Gong, Lili
name: Xingfei Zhu
Publisher: name: Zenodo
Year: 2023

description: Here, we investigated the effects and mechanism of dBET6, a proteolysis‑targeting chimera (PROTAC) small molecule that selectively degrades BET by the ubiquitin‒proteasome system, in light-induced retinal degeneration.
Magnonic spin-wave modes in CoFeB antidot lattices
Creators: name: Ulrichs, Henning
name: Lenk, Benjamin
name: Münzenberg, Markus
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this manuscript time-resolved magneto-optical Kerr effect experiments on structured CoFeB films are presented. The geometries considered are two dimensional square lattices of micrometer-sized antidots, fabricated by a focused ion beam. The spin-wave spectra of these magnonic crystals show a novel precessional mode, which can be related to a Bloch state at the zone boundary. Additionally, another magnetic mode of different nature appears, whose frequency displays no dependence on the externally applied magnetic field. These findings are interpreted as delocalized and localized modes, respectively.
description: 4 pages, 3 figures
Exploring the Social-symbolic Meaning of Eating Habits in the Czech Republic and Ukraine
Creators: name: Hrubá, Renata
name: Tanklevskab, Nataliya S.
Publisher: name: International Journal on Food System Dynamics
Year: 2021
Subjects: food-related lifestyle; traditional food system, consumer behavior; habitus concept

description: The purpose of this study is to empirically assess whether the social-symbolic meaning of eating habits is constructed within cultures. The analysis is based on the sociological approaches of Bourdieu´s theory. To answer the question, data from an on-line survey (n=319; carried out in the Czech and Ukraine) are compared using multi-sample measurement model. Results indicate the effect of social structures on individual perceptions and practices through habitus. The differences rely on the revitalization of local food, food arts, and market in Czechia. These findings have several marketing and advertising implications.
description: International Journal on Food System Dynamics, Vol 12, No 4 (2021)
Nuclei of early-type dwarf galaxies: insights from stellar populations
Creators: name: Paudel, Sanjaya
name: Lisker, Thorsten
name: Kuntschner, Harald
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: (Abridged) We present a comprehensive analysis of the spatially resolved stellar population properties of 26 early-type dwarf (dE) galaxies in the Virgo cluster. Using Lick/IDS absorption line indices we derive simple stellar population(SSP)-equivalent age, metallicity and [$α$/Fe] abundance ratio. In particular, we focus on the comparison of the stellar populations between the central nucleus and the surrounding galactic main body. The stellar populations of the nuclei are, for most dEs, significantly younger than those of the respective galactic main bodies, with an average difference of 3.5 Gyr. We find only five dEs with significantly older nuclei than their galactic main bodies. Furthermore, we observe most dE nuclei to be more metal rich compared to their host galaxies. These age and metallicity behaviours are shown by almost all dEs brighter than M$_{\it r}$ = -17 mag. We also examine the presence of radial gradients in the SSP parameters for a subset of 13 dEs (up to 1.2 kpc or 15 arcsec radius). We notice two different types of gradients, namely smooth profiles that include the nucleus, and profiles where a break occurs between the nucleus and the rest of the galaxy. Nevertheless, an overall trend of increasing age and decreasing metallicity with radius exists, consistent with earlier studies.
description: Accepted by MNRAS, 15 pages, 14 figures
Cooperative Farming
Creators: name: Oliver, George L.
Publisher: name: Unknown
Year: 1941
Subjects: Agribusiness
Community/Rural/Urban Development
Farm Management
Labor and Human Capital

description: Excerpts: The Farm Security Administration, on its Projects, has organized 33 Cooperative Farming Associations. It is apparent that this Administration is conscientiously endeavoring to determine the contribution a Cooperative Farm should made to the rehabilitation of low-income rural families. Probably it will help our thinking to define the Cooperative Farm in its simplest terms. In the first place, it is a large-scale farm operated by a Corporation which is a Cooperative. Large-scale farming of various types is more or less common throughout the United States. Large-scale Cooperative Farming differs only in the distribution of the profits of such an undertaking. The difference is not one of agricultural technique. The change is one in business organization. The only new idea on a Cooperative Farm is that the profits, if any, go to the members of the Association in proportion to their labor rather than to individual proprietors or stockholders.
description: Address by George L. Oliver at the Resettlement Personnel Conference of the Farm Security Administration, U.S.D.A., in New Orleans, Louisiana, January 30, 1941.
Lathrecista asiatica Fabricius 1798
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Lathrecista
Lathrecista asiatica

description: 92. Lathrecista asiatica asiatica (F.) - Eastcoast Gvt.: Deli. Medan (Lieftinck); Deli. Tebingtinggi and Bahilang Est.. Juli 14. 1928. van der Meer Mohr leg. Tapanoeli Res.: Sibolga (Selys). Westcoast Res.: Aur: Padangsche Bovenlanden (Ris). 93. Orthetrum chrysis (Selys). - Atjeh Gvt.: Singkel. Walsh misit. Eastcoast Gvt.: Deli, Mt. Sinaboeng (Kruger) and Sibolangit. 500 m. Docters van Leeuwen leg. Westcoast Res.: Mt. Ophir distr.: Pajakoemboeh. Kloof van Harau (Ris). Palembang Res.: Kloeang. native coli. S. Lampoeng Res.: Mt. Tanggamoes. Gisting. 4-600 m. common. Author leg. "Tandjong Slamat" (Fraser)..
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 14, DOI: 10.5281/zenodo.3251875
description: {"references": ["Lieftinck. M. A. Dragonflies (Odonata) from Northeast Sumatra. Misc. Zool. Sum. 34. 1929.", "Selys Longchamps. E. d e. Odonates de Sumatra, etc. Ann. Mus. civ. Genova, 27, 1889.", "Ris. F. Odonaten von Sumatra, gesammelt von Edward Jacobson. Zool. Meded. Leiden. 10. 1927.", "Kruger. L. Die Odonaten von Sumatra. I ~ III. Stett. ent. Zeitg. 59 - 63. 1898 - 1902."]}
Baryon Destruction by Asymmetric Dark Matter
Creators: name: Davoudiasl, Hooman
name: Morrissey, David E.
name: Sigurdson, Kris
name: Tulin, Sean
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate new and unusual signals that arise in theories where dark matter is asymmetric and carries a net antibaryon number, as may occur when the dark matter abundance is linked to the baryon abundance. Antibaryonic dark matter can cause {\it induced nucleon decay} by annihilating visible baryons through inelastic scattering. These processes lead to an effective nucleon lifetime of 10^{29}-10^{32} years in terrestrial nucleon decay experiments, if baryon number transfer between visible and dark sectors arises through new physics at the weak scale. The possibility of induced nucleon decay motivates a novel approach for direct detection of cosmic dark matter in nucleon decay experiments. Monojet searches (and related signatures) at hadron colliders also provide a complementary probe of weak-scale dark-matter--induced baryon number violation. Finally, we discuss the effects of baryon-destroying dark matter on stellar systems and show that it can be consistent with existing observations.
description: 26 pages, 6 figures
Orthetrum glaucum Brauer
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Orthetrum
Orthetrum glaucum

description: 94. Orthetrum glaucum (Brauer). - Distributed throughout the island.
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 14, DOI: 10.5281/zenodo.3251875
Sample-to-sample fluctuations of electrostatic forces generated by quenched charge disorder
Creators: name: Dean, David S.
name: Naji, Ali
name: Podgornik, Rudolf
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: It has been recently shown that randomly charged surfaces can exhibit long range electrostatic interactions even when they are net neutral. These forces depend on the specific realization of charge disorder and thus exhibit sample to sample fluctuations about their mean value. We analyze the fluctuations of these forces in the parallel slab configuration and also in the sphere-plane geometry via the proximity force approximation. The fluctuations of the normal forces, that have a finite mean value, are computed exactly. Surprisingly, we also show that lateral forces are present, despite the fact that they have a zero mean, and that their fluctuations have the same scaling behavior as the normal force fluctuations. The measurement of these lateral force fluctuations could help to characterize the effects of charge disorder in experimental systems, leading to estimates of their magnitudes that are complementary to those given by normal force measurements.
description: 11 pages RevTex, 4 figures
Orthetrum luzonicum Brauer
Creators: name: Lieftinck, M. A.
Publisher: name: Zenodo
Year: 1935
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Odonata
Libellulidae
Orthetrum
Orthetrum luzonicum

description: 95. Orthetrum luzonicum (Brauer). - Atjeh Gvt.: Takengon. 200 m. ult. Aug. 1934. van Steenis leg. Eastcoast Gvt.; Asahan. Siriaria. 1400 m. (Lieftinck); D eli. Soekaranda (Kruger). Tapanoeli Res.: Lake Toba distr.. Hoetagindjang (Schmidt); Padangsidimpoean. Sipirok. Oct. 17. 1925 Fulmek leg. Westcoast Res.: M t. Ophir distr.: Fort de Kock; Korintji (Ris): Alahanpandjang (Albarda); Danau di atas (Schmidt). S. Lampoeng Res.: Mt. Tanggamoes. Gisting. 600 m. Dec. 27. 1934. 1 ♀. Author leg..
description: Published as part of Lieftinck, M. A., 1935, A Synopsis of the Odonata (Dragonflies) of Sumatra, pp. 1-23 in Miscellanea Zoologica Sumatrana 1 on page 14, DOI: 10.5281/zenodo.3251875
description: {"references": ["Lieftinck. M. A. Dragonflies (Odonata) from Northeast Sumatra. Misc. Zool. Sum. 34. 1929.", "Kruger. L. Die Odonaten von Sumatra. I ~ III. Stett. ent. Zeitg. 59 - 63. 1898 - 1902.", "Schmidt, E. Odonatader Deutschen Iimnologischen Sunda-Expedition. Arch. Hydrobiol. Suppl. 13, Bd. 5. 1934.", "Ris. F. Odonaten von Sumatra, gesammelt von Edward Jacobson. Zool. Meded. Leiden. 10. 1927.", "Albarda. H .. in Veth's Midden Sumatra. Nat. Hist. Afd. 5. Neuroptera, 1881."]}
title: Tetrahedral miniand midi-fullerenes
Creators: name: Melker, Alexander I.
name: Starovoitov, Sergey A.
name: Zarafutdinov, Ruslan M.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2019
Subjects: energy
fusion reaction
graph representation
growth
mathematical compound
periodic system
tetrahedral fullerene
topological cube

description: We have considered possible ways of forming the simplest tetrahedral fullerenes, namely elementary tetrahedron C4, truncated tetrahedron C12, half-truncated cube C16, fullerenes C28 and C36. By analogy with ionic crystals, we introduced "mathematical" compounds, which form a topological cube of two tetrahedra inserted into each other, and construct graphs for them. Combined with the graph analysis, this approach allows obtain a clear knowledge of the tetrahedral fullerene structure. We extended our model to other tetrahedral fullerenes, in particular, tetrahedral fullerenes C64 and C76. doi: 10.18720/MPM.4112019_8
The stellar and dark halo mass assembly of galaxies
Creators: name: Avila-Reese, V.
name: Firmani, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The emerging empirical picture of galaxy stellar mass (Ms) assembly shows that galaxy population buildup proceeds from top to down in Ms. By connecting galaxies to LCDM halos and their histories, individual (average) Ms growth tracks can be inferred. These tracks show that massive galaxies assembled their Ms the earlier the more massive the halo, and that less massive galaxies are yet actively growing in Ms, the more active the less massive is the halo. The predicted star formation rates as a function of mass and the downsizing of the typical mass that separate active galaxies from the passive ones agree with direct observational determinations. This implies that the LCDM scenario is consistent with these observations. The challenge is now to understand the baryonic physics that drives the significant and systematical shift of the stellar mass assembly of galaxies from the mass assembly of their corresponding halos (from halo upsizing to galaxy downsizing).
description: 10 pages, 6 figures. Review for proceedings of the "XIII IAU Regional Latin American Meeting", RevMexAA (SC), Eds. S. Torres & W. Henney (slightly expanded version)
Canadian supply management : a food sovereignty policy? : British Columbia and New Zealand industry stakeholder perspectives on dairy policy in a neoliberal era
Creators: name: Gambling, Samantha Jane
Publisher: name: University of British Columbia
Year: 2016

description: As the concept of food sovereignty enters its third decade, greater analytical attention is needed to understand potentially enabling policy mechanisms in specific contexts. The Canadian supply management system for dairy, egg and poultry production is a national policy framework that controls production levels, sets prices, and limits imports. In theory, it is congruent with certain economic and political food sovereignty principles; however, the concept and value of supply management is increasingly challenged and critiqued from various socio-political perspectives. The research presented in this thesis examined supply management as a policy framework for dairy production, and its implications for food sovereignty in British Columbia (BC). In order to provide greater understanding of producer perceptions of a supply managed policy framework in relation to economic, political and socio-cultural aspects of milk production, I conducted 27 in-depth interviews with stakeholders from the BC dairy sector as well as textual analyses of industry reports. I also conducted interviews with 10 stakeholders from the New Zealand (NZ) dairy sector as a comparative case study of producer perspectives on dairy production in a liberalized policy environment. Results suggest that supply management in the BC dairy industry is more conducive to food sovereignty than the neoliberal and neo-cooperative organization of the NZ dairy industry. Yet while supply management supports economic viability for producers and demonstrates capacity for democratic governance and the development of social goals, it also has the potential to propagate economic, political and social inequities within the industry. In particular, producer identification with neoliberal economic objectives renders both supply managed and liberalized dairy systems subject to cultural forces that challenge food sovereignty principles. To function as a food sovereignty framework, supply management will require political adjustments and socio-cultural shifts both within and outside of the industry.
supp_BiolLetters from Developmental environments do not affect thermal physiological traits in reptiles: an experimental test and meta-analysis
Creators: name: Zhang, Rose Y.
name: Wild, Kristoffer H.
name: Pottier, Patrice
name: Carrasco, Maider Iglesias
name: Nakagawa, Shinichi
name: Noble, Daniel W. A.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology

description: On a global scale, organisms face significant challenges due to climate change and anthropogenic disturbance. In many ectotherms, developmental and physiological processes are sensitive to changes in temperature and resources. Developmental plasticity in thermal physiology may provide adaptive advantages to environmental extremes if early environmental conditions are predictive of late-life environments. Here, we conducted a laboratory experiment to test how developmental temperature and maternal resource investment influence thermal physiological traits (critical thermal maximum: CTmax and thermal preference: Tpref) in a common skink (Lampropholis delicata). We then compared our experimental findings more broadly across reptiles (snakes, lizards and turtles) using meta-analysis. In both our experimental study and meta-analysis, we did not find evidence that developmental environments influence CTmax or Tpref . Furthermore, the effects of developmental environments on thermal physiology did not vary by age, taxon or climate zone (temperate/tropical). Overall, the magnitude of developmental plasticity on thermal physiology appears to be limited across reptile taxa suggesting that behavioural or evolutionary processes may be more important. However, there is a paucity of information across most reptile taxa, and a broader focus on thermal performance curves themselves will be critical in understanding the impacts of changing thermal conditions on reptiles in the future.
American Press Institute (API)/Associated Press-NORC Center for Public Affairs Research Poll: Paths to Subscription: Why Recent Subscribers Chose to Pay for News
Creators: name: American Press Institute (API)
Publisher: name: Roper Center for Public Opinion Research
Year: 2019

description: Frequency of exposure to news (1); keeping up with news (1); devices used to get news and information (8); getting news from social media (1); actively seeks vs. passively receives news (1); prefers getting news once or a few times daily/throughout the day (1); important factors in choosing to pay for news source (1); using newspaper for free before subscribing (18); reasons for subscribing to newspaper (14); subscribing to newspaper was easy/difficult (1); print, digital access included in subscription (1); frequency of print newspaper delivery (1); prefers print vs. digital access (1); using newspaper after subscribing (14); news topics respondent follows (1); important factors in using newspaper (12); reliability of information from newspaper (1); benefits, value of subscription (2); personal subscription to other media in past year (9).
Completed_PRISMAEcoEvo_Checklist_2023-01-17 from Developmental environments do not affect thermal physiological traits in reptiles: an experimental test and meta-analysis
Creators: name: Zhang, Rose Y.
name: Wild, Kristoffer H.
name: Pottier, Patrice
name: Carrasco, Maider Iglesias
name: Nakagawa, Shinichi
name: Noble, Daniel W. A.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology

description: On a global scale, organisms face significant challenges due to climate change and anthropogenic disturbance. In many ectotherms, developmental and physiological processes are sensitive to changes in temperature and resources. Developmental plasticity in thermal physiology may provide adaptive advantages to environmental extremes if early environmental conditions are predictive of late-life environments. Here, we conducted a laboratory experiment to test how developmental temperature and maternal resource investment influence thermal physiological traits (critical thermal maximum: CTmax and thermal preference: Tpref) in a common skink (Lampropholis delicata). We then compared our experimental findings more broadly across reptiles (snakes, lizards and turtles) using meta-analysis. In both our experimental study and meta-analysis, we did not find evidence that developmental environments influence CTmax or Tpref . Furthermore, the effects of developmental environments on thermal physiology did not vary by age, taxon or climate zone (temperate/tropical). Overall, the magnitude of developmental plasticity on thermal physiology appears to be limited across reptile taxa suggesting that behavioural or evolutionary processes may be more important. However, there is a paucity of information across most reptile taxa, and a broader focus on thermal performance curves themselves will be critical in understanding the impacts of changing thermal conditions on reptiles in the future.
Interstellar Grains: Effect of Inclusions on Extinction
Creators: name: Katyal, Nisha
name: Gupta, Ranjan
name: Vaidya, D. B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A composite dust grain model which simultaneously explains the observed interstellar extinction, polarization, IR emission and the abundance constraints, is required. We present a composite grain model, which is made up of a host silicate oblate spheroid and graphite inclusions. The interstellar extinction curve is evaluated in the spectral region 3.4-0.1$μm$ using the extinction efficiencies of the composite spheroidal grains for three axial ratios. Extinction curves are computed using the discrete dipole approximation (DDA). The model curves are subsequently compared with the average observed interstellar extinction curve and with an extinction curve derived from the IUE catalogue data.
description: 10 pages, 3 figures
RAQAMLI MARKETINGNING QISHLOQ XO'JALIGIDAGI O'RNI
Creators: name: Nazarova, Gulruh
Publisher: name: Zenodo
Year: 2025

description: Raqamli marketing qishloq xo‘jaligida fermerlar, agrokompaniyalar va iste’molchilar o‘rtasidagi aloqani mustahkamlashga xizmat qiladi. Onlayn platformalar, ijtimoiy tarmoqlar va elektron tijorat vositalari orqali qishloq xo‘jaligi mahsulotlarini targ‘ib qilish, mijozlar bazasini kengaytirish va savdoni oshirish imkoni paydo bo‘lmoqda. Shuningdek, SEO, kontekstli reklama va email marketing kabi vositalar fermerlarning mahsulotlari bozorini kengaytirishga yordam beradi. Raqamli texnologiyalar qishloq xo‘jaligi korxonalariga maqsadli auditoriyani aniqlash, mijozlarning talablari va bozor tendensiyalarini o‘rganish imkonini beradi. Sun’iy intellekt va analitik vositalar marketing strategiyalarini optimallashtirishga ko‘maklashadi. Bundan tashqari, onlayn ta’lim va vebinarlar orqali fermerlar ilg‘or tajribalarni o‘rganib, zamonaviy marketing usullaridan foydalanishlari mumkin. Raqamli marketingning rivojlanishi qishloq xo‘jaligi mahsulotlarining global bozorga chiqishiga ham yo‘l ochib, fermerlarga daromadni oshirish va barqaror rivojlanishni ta’minlash imkonini beradi. Shu sababli, zamonaviy agroiqtisodiyotda raqamli marketing muhim strategik vosita sifatida qaralmoqda
title: Gadolinium retention: are there differences between macrocyclic agents? Comparative study in healthy rats
Creators: name: Bussi, Simona
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Contrast agents
subject: Animal (veterinary) studies
subject: MR
subject: Contrast agent-intravenous
subject: Tissue characterisation

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Regulatory restrictions on the use of linear gadolinium-based contrast agents (GBCAs) in Europe due to concerns over potential long-term harm from gadolinium (Gd) retention in the brain have led to a marked increase in the use of macrocyclic GBCAs....