cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Double-Lined Spectrum of LBV 1806-20
Creators: name: Figer, Donald F.
name: Najarro, Francisco
name: Kudritzki, Rolf P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Despite much theoretical and observational progress, there is no known firm upper limit to the masses of stars. Our understanding of the interplay between the immense radiation pressure produced by massive stars in formation and the opacity of infalling material is subject to theoretical uncertainties, and many observational claims of ``the most massive star'' have failed the singularity test. LBV 1806-20 is a particularly luminous object, L~10^6 Lsun, for which some have claimed very high mass estimates (M_initial>200 Msun), based, in part, on its similarity to the Pistol Star. We present high-resolution near-infrared spectroscopy of LBV 1806-20, showing that it is possibly a binary system with components separated in velocity by ~70 kms. If correct, then this system is not the most massive star known, yet it is a massive binary system. We argue that a binary, or merged, system is more consistent with the ages of nearby stars in the LBV 1806-20 cluster. In addition, we find that the velocity of V_LSR=36 kms is consistent with a distance of 11.8 kpc, a luminosity of 10^6.3 Lsun, and a system mass of ~130 Msun.
description: ApJL, accepted
The stability and dynamics of the Aβ40/Aβ42 interlaced mixed fibrils
Creators: name: Jana, Asis K.
name: Güven, Özgür
name: Yaşar, Fatih
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Neuroscience
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Computational Biology

description: The accumulation of fibrillar amyloid-β (Aβ) aggregates in the brain, predominantly comprising 40- and 42-residue amyloid-β (Aβ40 and Aβ42), is a major pathological hallmark of Alzheimer’s disease (AD). Aβ40 and Aβ42 naturally coexist in the brain under normal physiological conditions, and their interplay is generally considered to be a critical factor in the progression of AD. In addition to forming homogeneous oligomers and fibrils, Aβ40 and Aβ42 are also reported to co-assemble into hetero-oligomers and interlaced mixed fibrils, as evidenced by solid-state nuclear magnetic resonance spectroscopy (NMR), high molecular weight mass spectrometry and cross-seeding experiments. However, the exact molecular mechanisms underlying these processes remain unclear. In this study, we have used a recently resolved structurally uniform 1:1 mixture of Aβ40/Aβ42 interlaced mixed fibril as a prototype to gain insights into the molecular-level interactions between Aβ40 and Aβ42. We employed fully atomistic molecular dynamics simulation and compared the results with a homogeneous U-shaped Aβ40 fibrillar model. Our simulations using two different force fields provide conclusive evidence that the Aβ40/Aβ42 interlaced mixed fibril is energetically more favorable than the homogeneous Aβ40 fibrillar model. Furthermore, we also show that the increase in stability observed in the mixed model stems primarily from the packing interfaces and the stacking interfaces between C-termini. Our simulation results provide valuable mechanistic insights that are not readily accessible in experiment and could have significant implications for both the pathogenesis of AD and the development of current therapeutic strategies.
El nihilismo y el cinismo en adolescentes del siglo XXI
Creators: name: Zambrano, Daniel Stiven Torres
name: González, Manuel Alejandro Borda
name: Rodas, Jhon Jairo Mosquera
Publisher: name: figshare
Year: 2021
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology
subject: Sociology
subject: FOS: Sociology

description: El presente estudio se inicia el análisis del desarrollo moral y ético de los adolescentes que están llegando al auge de su nueva percepción del mundo, a través de la negación de los códigos comportamentales y estéticos que la sociedad refleja con herramientas del engaño informático y la imposición de políticas rudimentarias e irracionales, para luego revelarse frente a ellos, en una sensación de fatiga hacia la realidad que desencadena un disparo de la razón que crea nuevas formas de observar la realidad y de enfrentar los estigmas que han regido la humanidad con ignorancia desde su génesis y hasta su modernidad.
Flexibility in Metadata Schemes and Standardisation: the Case of CMDI and DANS Research Data Repositories
Creators: name: Tykhonov, Slava
name: Scharnhorst, Andrea
Publisher: name: Zenodo
Year: 2021
Subjects: dataverse, data repository, semantic web, linked data, machine learning, AI, metadata enrichment

description: ISKO Knowledge Organisation Research Observatory workshop, 24 November 2021. RESEARCH REPOSITORIES AND DATAVERSE: NEGOTIATING METADATA, VOCABULARIES AND DOMAIN NEEDS. The development of metadata schemes in data repositories (and other content providers) has always been a process of negotiation between the needs of the designated user communities and the content of the collection on the one side and standards developed in the field. Automatisation has both enabled and enforced standardisation and alignment of metadata schemes (see as an example). But, while designated user communities turned from being local users to global ones (due to web services), their specific needs have not vanished. Technology offers possibilities to give the aforementioned negotiation a new form. In this presentation, we present the Dataverse platform, used by many data repositories. We show - using the case of the CMDI metadata and the CLARIN (Common Language Resources and Technology Infrastructure)community - how the Dataverse common core set of metadata called Citation Block can be extended with custom fields defined as a discipline specific metadata block. In particular, we show how these custom fields can be connected to a distributed network of authoritative controlled vocabularies. So, that at the end semantic search is possible. The presentation highlights opportunities and challenges, based on our own experiences. Related work has been presented at the CLARIN Annual Conference 2021
G-Structures, Fluxes and Calibrations in M-Theory
Creators: name: Martelli, Dario
name: Sparks, James
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the most general supersymmetric warped M-theory backgrounds with non-trivial G-flux of the type R^{1,2} x M_8 and AdS_3 x M_8. We give a set of necessary and sufficient conditions for preservation of supersymmetry which are phrased in terms of G-structures and their intrinsic torsion. These equations may be interpreted as calibration conditions for a static ``dyonic'' M-brane, that is, an M5-brane with self-dual three-form turned on. When the electric flux is turned off we obtain the supersymmetry conditions and non-linear PDEs describing M5-branes wrapped on associative and special Lagrangian three-cycles in manifolds with G_2 and SU(3) structures, respectively. As an illustration of our formalism, we recover the 1/2-BPS dyonic M-brane, and also construct some new examples.
description: 40 pages; v2: one reference added, typos corrected
WORLD HUNGER AND U. S. LAND GRANT UNIVEESDTES: CONSTRAINTS TO TECHNICAL ASSISTANCE IN INTERNATIONAL AGRICULTURE
Creators: name: Wennergren, E. Boyd
name: Whitaker, Morris D.
name: Wennergren, E. Boyd
name: Whitaker, Morris D.
Publisher: name: Unknown
Year: 1975
Subjects: Food Security and Poverty

description: The 1974 World Food Conference in Rome was characterized more by rhetoric reflecting national vested interests thanby constructive dialogue that might have led to effective policies and solutions to the world food problem. The conference did, however, focus international attention on the severity of the imbalanced supply and demand for food in the developing world. Conference delegates also generally agreed that while the developing world has potentials for increasing its food production, this would require substantial input of technical know-how, most of which would have to come from the developed world.
Alphinellus minimus Bates 1881
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Alphinellus
Alphinellus minimus

description: 3. Alphinellus minimus Bates, 1881
 Type locality — Guatemala, Escuintla: El Zapote. (BMNH). Distribution — Guatemala. Alphinellus minimus Bates, 1881a: 154; Lameere, 1883: 66 (cat.); Chemsak et al., 1992: 133 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
On the Adam-Gibbs-Wolynes scenario for the viscosity increase in glasses
Creators: name: Bouchaud, J. -P.
name: Biroli, G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We reformulate the interpretation of the mean-field glass transition scenario for finite dimensional systems, proposed by Wolynes and collaborators. This allows us to establish clearly a temperature dependent length xi* above which the mean-field glass transition picture has to be modified. We argue in favor of the mosaic state introduced by Wolynes and collaborators, which leads to the Adam-Gibbs relation between the viscosity and configurational entropy of glass forming liquids. Our argument is a mixture of thermodynamics and kinetics, partly inspired by the Random Energy Model: small clusters of particles are thermodynamically frozen in low energy states, whereas large clusters are kinetically frozen by large activation energies. The relevant relaxation time is that of the smallest `liquid' clusters. Some physical consequences are discussed.
description: 8 pages
Plasmepsin II inhibitory potential of phytochemicals isolated from African antimalarial plants: a computational approach
Creators: name: Faloye, Kolade O.
name: Tripathi, Manish Kumar
name: Fakola, Emmanuel G.
name: Adepiti, Awodayo O.
name: Adesida, Stephen A.
name: Oyeleke, Ibukun O.
name: Adebayo, Praise A.
name: Aregbesola, Adeola E.
name: Famuyiwa, Samson O.
name: Akinyele, Olawale F.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Medicine
Pharmacology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Computational Biology

description: Plamepsin II has been identified as a therapeutic target in the Plasmodium falciparum’s life cycle and may lead to a drastic reduction in deaths caused by malaria worldwide. Africa flora is rich in medicinal qualities and possesses both simple and complex bioactive phytochemicals. This study utilized computational approaches like molecular docking, molecular dynamics simulation, quantum chemical calculations and ADMET to evaluate the plasmepsin II inhibitory properties of phytochemicals isolated from African antimalarial plants. Molecular docking was carried out to estimate the binding affinity of 229 phytochemicals whereby ekeberin A, dichamanetin, 10-hydroxyusambaresine, chamuvaritin and diuvaretin were selected. Further, RMSD and RMSF plots from the 100 ns simulation results showed that the screened phytochemicals were stable in the enzyme’s binding pocket. The quantum chemical calculation revealed that all the phytochemicals are strong electrophiles, while ekeberin A was identified as the most stable and dichamanetin as the most reactive. Also, ADMET studies established the drug candidacy of the phytochemicals. Thus, these phytochemicals could act as good antimalarial agents after extensive in vitro and in vivo studies.
On integrability of one third-order nonlinear evolution equation
Creators: name: Sakovich, S. Yu.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study one third-order nonlinear evolution equation, recently introduced by Chou and Qu in a problem of plane curve motions, and find its transformation to the modified Korteweg - de Vries equation, its zero-curvature representation with an essential parameter, and its second-order recursion operator.
description: 10 pages
Drug repurposing for targeting fibronectin in treatment of endometriosis and cancers
Creators: name: Mahdian, Soodeh
name: Moini, Ashraf
name: Esfandiari, Fereshteh
name: Shahhoseini, Maryam
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Increased concentrations of the fibronectin glycoprotein can cause ectopic tissue growth patients with endometriosis and the formation of various cancerous tumors. Furthermore, fibronectin binding to its receptors from the EDA (Extra Domain A) region contributes to promote tumorigenesis, metastasis and vasculogenesis. Thus, the EDA region can be considered a unique target for therapeutic intervention. Therefore, the present study used computational methods to identify the best fibronectin inhibitor(s) among FDA-approved drugs. First, docking-based virtual screening was performed using PyRx 0.8. Next, FDA-approved drugs that obtained favorable results in the docking phase were selected for further studies and analysis using molecular dynamics (MD) simulation. The preliminary findings of the virtual screening showed that 17 FDA-approved drugs (from 2471) had more favorable energy with their binding energy less than −9 kcal/mol. The MD simulation results of these 17 drugs showed that Avapritinib had a lower RMSD value and higher binding energy and hydrogen bonding than the other complexes in the EDA domain. Also, analyses related to the second structure changes displayed that Avapritinib in the EDA domain led to more changes in the second structure. According to the results, the anticancer drug Avapritinib forms a more stable complex with fibronectin than other FDA-approved drugs. Furthermore, this drug leads to more changes in the second EDA structure, which may have more serious potential for inhibiting EDA fibronectin.
Quantum effects and stability of chameleon cosmology
Creators: name: Nojiri, Shin'ichi
name: Odintsov, Sergei D.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: One possibility to explain the current accelerated expansion of the universe may be related with the presence of cosmologically evolving scalar whose mass depends on the local matter density (chameleon cosmology). We point out that matter quantum effects in such scalar-tensor theory produce the chameleon scalar field dependent conformal anomaly. Such conformal anomaly adds higher derivative terms to chameleon field equation of motion. As a result, the principal possibility for instabilities appears. These instabilities seem to be irrelevant at small curvature but may become dangerous in the regions where gravitational field is strong.
description: LaTeX file, 10 pages, references are added
Positive Ion Chemistry in an N$_2$-CH$_4$ Plasma Discharge: Key Precursors to the Growth of Titan Tholins
Creators: name: Dubois, David
name: Carrasco, Nathalie
name: Jovanovic, Lora
name: Vettier, Ludovic
name: Gautier, Thomas
name: Westlake, Joseph
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Titan is unique in the solar system as it hosts a dense atmosphere mainly made of N$_2$ and CH$_4$. Cassini-Huygens revealed the presence of an intense atmospheric photochemistry initiated by the photo-dissociation and ionization of N$_2$ and CH$_4$. In the upper atmosphere, Cassini detected signatures compatible with the presence of heavily charged molecules, precursors for the solid core of the aerosols. However, the processes coupling ion chemistry and aerosol formation and growth are still mostly unknown. In this study, we investigated the cation chemistry responsible for an efficient organic growth that we observe in Titan's upper atmosphere, simulated using the PAMPRE plasma reactor. Cation precursors were measured by in situ ion mass spectrometry in a cold plasma and compared with INMS observations taken during the T40 flyby. A series of positive ion measurements were performed in three CH$_4$ mixing ratios (1%, 5% and 10%) showing a variability in ion population. Low CH$_4$ concentrations result in an abundance of amine cations such as NH$_4^+$ whereas aliphatic compounds dominate at higher methane concentrations. In conditions of favored tholin production, the presence of C2 compounds such as HCNH$^+$ and C$_2$H$_5^+$ is found to be consistent with copolymeric growth structures seen in tholin material. The observed abundance of these two ions particularly in conditions with lower CH$_4$ amounts is consistent with modeling work simulating aerosol growth in Titan's ionosphere, which includes mass exchange primarily between HCNH$^+$ and C$_2$H$_5^+$ and negatively charged particles. These results also confirm the prevalent role of C2 cations as precursors to molecular growth and subsequent mass transfer to the charged aerosol particles as the CH$_4$ abundance decreases towards lower altitudes.
description: 39 pages, 20 figures, 3 tables, Accepted for publication in Icarus (abstract shortened)
Supplementary information from Within-island diversification in a passerine bird
Creators: name: Maëva Gabrielli
name: Benoit Nabholz
name: Leroy, Thibault
name: Milá, Borja
name: Thébaud, Christophe
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60408 Genomics

description: This file contains supplementary texts, tables and figures.
Alphinellus subcornutus Bates 1881
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Alphinellus
Alphinellus subcornutus

description: 4. Alphinellus subcornutus Bates, 1881
 Type locality — Guatemala, Alta Verapaz: Telemán. (BMNH). Distribution — Guatemala. Alphinellus subcornutus Bates, 1881a: 154; Lameere, 1883: 66 (cat.); Chemsak et al., 1992: 133 (cat.).
 Alphinellus? subcornutus; Gilmour, 1965: 591 (cat.).
  Amniscites Gilmour, 1957
 Amniscites Gilmour, 1957: 4.
 Type­species — Amniscus pictipes Bates, 1863 (monotypy and original designation). Amniscus; Bates, 1863: 103 (partim, not Dejean, 1835).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
title: Références bibliographiques
Creators: name: Leibowitch, Jacques
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Source: http://www.calames.abes.fr/pub/ms/Calames-20193111231432417
description: created: start=1975;end=2018
Present Volume, Growth and Economic Value Predictions for Natural Timber Stands
Creators: name: Killcreasm Wallace, E.
name: Waldrop, John E.
name: Killcreasm Wallace, E.
name: Waldrop, John E.
Publisher: name: Unknown
Year: 1975
Subjects: Demand and Price Analysis

description: Owners of small natural timber stands can increase economic efficiency by using information similar to that available to owners of larger tracts. Multiple regression techniques were used to develop a system capable of providing such information. Inputs from these owners and/or private or public agencies are necessary for implementation.
Optimizing Retail Fertilizer Dealer Inventory Levels
Creators: name: Devino, Gary T.
name: Dever, Lloyd A.
name: Devino, Gary T.
name: Dever, Lloyd A.
Publisher: name: Unknown
Year: 1976
Subjects: Crop Production/Industries

description: Retail fertilizer firms must cope with a high degree of uncertainty in their business operations. The amount of fertilizer farmers plan to buy each year changes with fertilizer prices and the prices of grain and other crops utilizing fertilizer. Farmer's plans are, in turn, adjusted by weather conditions at planting time. The timing and relative height of the peak spring application period varies from year to year. If the planting season is too wet or too late, Midwest farmers will switch from corn to soybeans, thus reducing their fertilizer purchases for the season.
Synthesis, characterization, biological activity and computation-based efficacy of cobalt(II) complexes of biphenyl-2-ol against SARS-CoV-2 virus
Creators: name: Kumari, Shalima
name: Thakur, Maridula
name: Chauhan, Chetan
name: Kumari, Meena
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified

description: Cobalt(II) complexes of biphenyl-2-ol of composition, CoCl2-n(OC6H4C6H5-2)n(H2O)4 (where n = 1 or 2), were prepared by reacting cobaltous(II) chloride with equi- and bimolar ratios of sodium salt of biphenyl-2-ol. The structural characterization of the synthesized complexes was accomplished by NMR, FTIR, thermogravimetry (TGA), high resolution mass spectroscopy (HRMS), electronic spectroscopic techniques coupled with density functional theory (DFT). The stability of the complexes in different pH media of solvent was studied. Chemical reactivity parameters of the newly synthesized complexes, computed using DFT, indicated greater reactivity of complex 2 over complex 1 and free ligand as indicated by its low HOMO-LUMO energy gap corresponding to 1.71 eV. Molecular docking (MD) studies were carried out in order to study the binding affinities between amino acid residues of DNA duplex (PDB ID: 1BNA) and SARS-CoV-2 (PDB ID: 7T9K) with newly synthesized complexes. Complex 2 has shown promising antivirus behaviour with an inhibition constant value of 0.0423 µmol−1 with amino acid residues of SARS-CoV-2 virus. Toxicity of the complexes was predicted using ProTox-II online server. Antibacterial studies have indicated the complexes to exhibit greater efficacy than the free ligand, while the antioxidant activities have suggested them to display enhanced antioxidant behaviour as compared to reference compounds.
A noncommutative theory of Penrose tilings
Creators: name: Mulvey, Christopher J.
name: Resende, Pedro
Publisher: name: arXiv
Year: 2003
Subjects: subject: Category Theory (math.CT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 06F07, 52C23 (Primary) 03B60, 05B45, 18B99, 46L89, 54A05, 58B34 (Secondary)

description: Considering quantales as generalised noncommutative spaces, we address as an example a quantale Pen based on the Penrose tilings of the plane. We study in general the representations of involutive quantales on those of binary relations, and show that in the case of Pen the algebraically irreducible representations provide a complete classification of the set of Penrose tilings from which its representation as a quotient of Cantor space is recovered.
description: The second version contains updates to references
BEEF AND OTHER ENTERPRISE ADJUSTMENTS IN THE SOUTHERN PIEDMONT: A CONSIDERATION OF MANAGERIAL RESPONSE TO CHANGING PRICE RELATIONSHIPS
Creators: name: Martin, Neil R.
name: Wise, James O.
name: Musser, Wesley N.
name: Martin, Neil R.
name: Wise, James O.
name: Musser, Wesley N.
Publisher: name: Unknown
Year: 1975
Subjects: Livestock Production/Industries

description: The role of managerial coordination with respect to response to price changes has increased in the 1970's. This paper presents a representative farm organization analysis with emphasis on price changes that have-affected enterprises in the Southern Piedmont. Correct price expectations yield substantially higher profits and fewer beef animals.
Selected paper presented at the 63rd AARES Annual Conference at Melbourne, Vic from 12-15 February 2019 This paper has been independently reviewed and is published by The Australasian Agricultural and Resource Economics Society Ltd on the AgEcon Search website at http://ageconsearch.umn.edu/ University of Minnesota, 1994 Buford Ave St. Paul MN 55108-6040, USA Published 2018 Risk attitude and discount rate: crucial factors for planting oil palms by smallholders?
Creators: name: Sarwosri, Arieska
name: Sarwosri, Arieska
Publisher: name: Unknown
Year: 2019
Subjects: subject: Risk and Uncertainty
subject: discount rate
subject: oil palm
subject: portfolio effect
subject: risk attitude
subject: rubber
subject: smallholders’ crop selection

description: Even though oil palm is not a native cash crop in Indonesia, the cultivation of oil palm is rapidly developed by smallholder farmers. This study examines if the adoption of oil palm is reasoned in underlying economic preferences. We utilized an incentivized field experiment to elicit smallholders’ risk attitude and discount rate and estimated both preferences jointly. The field experiments included 636 smallholders from Sumatra Island, Indonesia. We compared the risk attitude and discount rate of the oil palm adopters to non-adopters, i.e., rubber smallholders which is the main alternative cash crop of oil palm. We found that adopters are more risk-averse compared to non-adopters. Furthermore, the finding also confirms that risk-averse farmers diversify cultivated crops to mitigate income risks from agriculture. However, we do not find statistically significant differences in the discount rates between the two groups.
Stellar Property Statistics of Massive Halos from Cosmological Hydrodynamics Simulations: Common Kernel Shapes
Creators: name: Anbajagane, Dhayaa
name: Evrard, August E.
name: Farahi, Arya
name: Barnes, David J.
name: Dolag, Klaus
name: McCarthy, Ian G.
name: Nelson, Dylan
name: Pillepich, Annalisa
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study stellar property statistics, including satellite galaxy occupation, of massive halo populations realized by three cosmological hydrodynamics simulations: BAHAMAS + MACSIS, TNG300 of the IllustrisTNG suite, and Magneticum Pathfinder. The simulations incorporate independent sub-grid methods for astrophysical processes with spatial resolutions ranging from $1.5$ to $6$ kpc, and each generates samples of $1000$ or more halos with $M_{\rm halo}> 10^{13.5} M_{\odot}$ at redshift $z=0$. Applying localized, linear regression (LLR), we extract halo mass-conditioned statistics (normalizations, slopes, and intrinsic covariance) for a three-element stellar property vector consisting of: i) $N_{sat}$, the number of satellite galaxies with stellar mass, $M_{\star, \rm sat} > 10^{10} M_{\odot}$ within radius $R_{200c}$ of the halo; ii) $M_{\star,\rm tot}$, the total stellar mass within that radius, and; iii) $M_{\star,\rm BCG}$, the gravitationally-bound stellar mass of the central galaxy within a $100 \, \rm kpc$ radius. Scaling parameters for the three properties with halo mass show mild differences among the simulations, in part due to numerical resolution, but there is qualitative agreement on property correlations, with halos having smaller than average central galaxies tending to also have smaller total stellar mass and a larger number of satellite galaxies. Marginalizing over total halo mass, we find the satellite galaxy kernel, $p(\ln N_{sat}\,|\,M_{\rm halo},z)$ to be consistently skewed left, with skewness parameter $γ= -0.91 \pm 0.02$, while that of $\ln M_{\star,\rm tot}$ is closer to log-normal, in all three simulations. The highest resolution simulations find $γ\simeq -0.8$ for the $z=0$ shape of $p(\ln M_{\star,\rm BCG}\,|\,M_{\rm halo},z)$ and also that the fractional scatter in total stellar mass is below $10\%$ in halos more massive than $10^{14.3} M_{\odot}$.
description: 17 pages, 15 figures
EL NIHILISMO Y EL CINISMO EN ADOLESCENTES DEL SIGLO XXI
Creators: name: Zambrano, Daniel Stiven Torres
name: González, Manuel Alejandro Borda
name: Rodas, Jhon Jairo Mosquera
Publisher: name: figshare
Year: 2021
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology
subject: Sociology
subject: FOS: Sociology

description: El presente estudio se inicia el análisis del desarrollo moral y ético de los adolescentes que están llegando al auge de su nueva percepción del mundo, a través de la negación de los códigos comportamentales y estéticos que la sociedad refleja con herramientas del engaño informático y la imposición de políticas rudimentarias e irracionales, para luego revelarse frente a ellos, en una sensación de fatiga hacia la realidad que desencadena un disparo de la razón que crea nuevas formas de observar la realidad y de enfrentar los estigmas que han regido la humanidad con ignorancia desde su génesis y hasta su modernidad.
Antimicrobial activity prediction, inter- and intramolecular charge transfer investigation, reactivity analysis and molecular docking studies of adenine derivatives
Creators: name: Priya, C. Geetha
name: Venkatraman, B. R.
name: Arockiaraj, I.
name: Sowrirajan, S.
name: Elangovan, N.
name: Islam, Mohammad Shahidul
name: Mahalingam, Sakkarapalayam M.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified

description: The utilization of the density functional theory (DFT) methodology has developed as a highly efficient method for investigating molecular structure and vibrational spectra, and it is increasingly being employed in various applications relating to biological systems. This study focuses on conducting investigations, both experimental and computed, to analyze the molecular structure, electronic properties and features of (E)-4-(((9H-purin-6-yl)imino)methyl)-2-methoxyphenol (ANVA). The expression ANVA should be rewritten as follows: the compound is a derivative of adenine (primary amine), specifically a vanillin (aldehyde). The present study reports the synthesis, characterization, DFT, docking and antimicrobial activity of ANVA. The optimization of the molecular structure was conducted, and the determination of its structural features was performed using DFT with the B3LYP/cc-pVDZ method. The vibrational assignments were determined in detail by analyzing the potential energy distribution. A strong correlation was observed between the spectra that were observed and the spectra that were calculated. The calculation of intramolecular charge transfer was performed using natural bond orbital analysis. In addition, several computational methods were employed, including highest occupied molecular orbital–least unoccupied molecular orbital analysis, molecular electrostatic potential calculations, non-linear optical, reduced density gradient, localization orbital locator and electron localization function analysis. This paper examines the present use of adenine derivatives in combatting bacterial and fungal infections, as well as the inclusion of spectral and quantum chemical calculations in the discussion.
Rice Price Transmission between Wholesalers and Retailers in the Philippines: Are Prices Integrated in Local Markets?
Creators: name: Chaudhary, Bijay
name: Morales, L. Emilio
name: Villano, Renato
name: Chaudhary, Bijay
name: Morales, L. Emilio
name: Villano, Renato
Publisher: name: Unknown
Year: 2019
Subjects: Crop Production/Industries

description: Increasing attention has been given to raising commodity prices due to its negative effects on poverty and undernutrition. An example of this problem are the growing rice prices in Philippines, which are causing high living expenses to the population across the country. To assess the competitiveness of agro-food chains, price transmission has been used as an indicator of market integration. Using monthly data for the period 2000 to 2016, this study tests vertical price transmission between wholesale and retail prices and dynamic relationship between them in five local markets in Philippines. Results demonstrate that retail prices are granger caused by wholesale prices in all local markets. An autoregressive distributed lag (ARDL) model confirms that asymmetry in rice price transmission between wholesale and retail levels in Metro Manila and Davao. In addition, the ARDL model also confirms retail rice prices in all markets studied in Philippines depend on previous retail prices, contemporaneous wholesale prices and wholesale prices lagged one and two periods, depending on the location. Impulse Response Functions (IRFs) show the retail price response initiates almost immediately or at most one month later after shock, i.e. negative and positive change, on wholesale price, and the duration of full price adjustments tend to be considerably longer in all five local markets in Philippines.
Amniscus praemorsus
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Amniscus
Amniscus praemorsus

description: 2. Amniscus praemorsus (Fabricius, 1792)
Type locality — Guadeloupe. (ZMUC). Distribution — Antigua, Dominica, St. Lucia, Bermudas, Saint Thomas, Saint Barthélemy, Barbados, Guadeloupe. Mexico (?).
 Lamia praemorsa Fabricius, 1792: 275; 1801: 291; Schoenherr, 1817: 382.
 Amniscus praemorsus; Dejean, 1835: 338 (cat.); White, 1855: 391; Monné & Giesbert, 1992: 253; Monné, 2001b: 6 (cat. hosts).
 Leptostylus praemorsus; Lacordaire, 1872: 772; Bates, 1885: 386; Fleutiaux & Sallé, 1889: 472 (hosts); Gahan, 1895: 135; Ballou, 1913: 62 (biol.); Leng & Mutchler, 1914: 450 (distr.); Aurivillius, 1929: 2 (distr.); Tucker, 1952: 346 (distr.); Duffy, 1960: 252 (biol.).
 Leptostyloides praemorsus; Villiers, 1980a: 91 (lect.); 1980c: 571, fig. 94; Chemsak et al., 1992: 138 (cat.); Noguera & Chemsak, 1996: 406 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Massive Gravity on a Brane
Creators: name: Chacko, Z.
name: Graesser, M.
name: Grojean, C.
name: Pilo, L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: At present no theory of a massive graviton is known that is consistent with experiments at both long and short distances. The problem is that consistency with long distance experiments requires the graviton mass to be very small. Such a small graviton mass however implies an ultraviolet cutoff for the theory at length scales far larger than the millimeter scale at which gravity has already been measured. In this paper we attempt to construct a model which avoids this problem. We consider a brane world setup in warped AdS spacetime and we investigate the consequences of writing a mass term for the graviton on a the infrared brane where the local cutoff is of order a large (galactic) distance scale. The advantage of this setup is that the low cutoff for physics on the infrared brane does not significantly affect the predictivity of the theory for observers localized on the ultraviolet brane. For such observers the predictions of this theory agree with general relativity at distances smaller than the infrared scale but go over to those of a theory of massive gravity at longer distances. A careful analysis of the graviton two-point function, however, reveals the presence of a ghost in the low energy spectrum. A mode decomposition of the higher dimensional theory reveals that the ghost corresponds to the radion field. We also investigate the theory with a brane localized mass for the graviton on the ultraviolet brane, and show that the physics of this case is similar to that of a conventional four dimensional theory with a massive graviton, but with one important difference: when the infrared brane decouples and the would-be massive graviton gets heavier than the regular Kaluza--Klein modes, it becomes unstable and it has a finite width to decay off the brane into the continuum of Kaluza-Klein states.
description: 26 pages, LaTeX. v2: extended version with an appendix added about non Fierz-Pauli mass terms. Few typos corrected. Final version appeared in PRD
title: A Methodology for the Development of Recurrent Networks for Sequence Processing Tasks
Creators: name: Bradbury, David
Publisher: name: The Open University
Year: 1997

description: Artificial neural networks are increasingly being used for dealing with real world applications. Many of these (e.g. speech recognition) are based on an ability to perform sequence processing. A class of artificial neural networks, known as recurrent networks, have architectures which incorporate feedback connections. This in turn allows the development of a memory mechanism to allow sequence processing to occur.

A large number of recurrent network models have been developed, together with modifications of existing architectures and learning rules. However there has been comparatively little effort made to compare the performance of these models relative to each other. Such comparative studies would show differences in performance between networks and allow an examination of what features of a network give rise to desirable behaviours such as faster learning and superior generalisation ability.

This thesis describes the results of a number of existing comparative studies and the results of new research. Three different recurrent networks, both in their original form and with modifications, are tested with four different sequence processing tasks. The results of this research clearly show that recurrent networks vary widely in terms of their performance and lead to a methodology based on the following conclusions:
Learning Digital Geographies through Geographical Artificial Intelligence
Creators: name: Liu, Pengyuan
Publisher: name: University of Leicester
Year: 2022
Subjects: Uncategorized

description: As the distinction between online and physical spaces rapidly degrades, digital platforms have become an integral component of how people’s everyday experiences are mediated. User-generated content (UGC) shared on such platforms provides insights into how users want to represent their everyday lives, which augments and reinforces our understanding of local communities through time and layers dynamic information across and over the geographic space. Inspired by the development of the newly arisen scientific disciplines within geography: geographical artificial intelligence (GeoAI), this thesis adopts deep learning approaches on graph representations of human dynamics illustrated through geotagged UGC to explore how place representations are augmented and reinforced through users’ spatial experiences by classifying their multimedia activities and identifying the spatial clusters of UGC at the urban scale. Having the place representations described through UGC, this thesis explores how these representations can be used in conjunction with various official spatial statistics to understand and predict the dynamic changes of the socio-economic characteristics of places.The principal contributions of this thesis are: (1) to provide frameworks with higher classification and prediction accuracy but requiring fewer sample data; thus, contributing to an advanced framework to summarise spatial characteristics of places; (2) to show that multimedia content provides rich information regarding places, the use of space, and people’s experience of the landscape; thus, benefiting a better understanding of place representations; (3) to illustrate that the spatial patterns of UGC can be adopted as a valuable proxy to understand urban development and neighbourhood change; (4) to reinforce the concept that Spatial is Special. Spatial processes are commonly spatially autocorrelated. The mainstream of machine learning methods do not explicitly incorporate the spatial or spatio-temporal component to address such a speciality of spatial data. This thesis highlights the importance of explicitly incorporating spatial or spatio-temporal components in geographical analysis models.
Spectral Characterization of Anomalous Diffusion of a Periodic Piecewise Linear Intermittent Map
Creators: name: Tasaki, S.
name: Gaspard, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: For a piecewise linear version of the periodic map with anomalous diffusion, the evolution of statistical averages of a class of observables with respect to piecewise constant initial densities is investigated and generalized eigenfunctions of the Frobenius-Perron operator are explicitly derived. The evolution of the averages is controlled by real eigenvalues as well as continuous spectra terminating at the unit circle. Appropriate scaling limits are shown to give a normal diffusion if the reduced map is in the stationary regime with normal fluctuations, a Lévy flight if the reduced map is in the stationary regime with Lévy-type fluctuations and a transport of ballistic type if the reduced map is in the non-stationary regime.
description: submitted to Physica D (CHAOTRAN conference proceedings)
On the geometry of closed G2-structure
Creators: name: Cleyton, Richard
name: Ivanov, Stefan
Publisher: name: arXiv
Year: 2003
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C10 (Primary); 53C25, 53C29 (Secondary)

description: We give an answer to a question posed recently by R.Bryant, namely we show that a compact 7-dimensional manifold equipped with a G2-structure with closed fundamental form is Einstein if and only if the Riemannian holonomy of the induced metric is contained in G2. This could be considered to be a G2 analogue of the Goldberg conjecture in almost Kahler geometry. The result was generalized by R.L.Bryant to closed G2-structures with too tightly pinched Ricci tensor. We extend it in another direction proving that a compact G2-manifold with closed fundamental form and divergence-free Weyl tensor is a G2-manifold with parallel fundamental form. We introduce a second symmetric Ricci-type tensor and show that Einstein conditions applied to the two Ricci tensors on a closed G2-structure again imply that the induced metric has holonomy group contained in G2.
description: 14 pages, the Einstein condition in the assumptions of the Main theorem is generalized to the assumption that the Weyl tensor is divergence-free, clarity improved, typos corrected
How Horizontal Integration affects Transaction Costs of Rural Collective Construction Land Market? An Empirical Analysis in Nanhai District Guangdong Province, China
Creators: name: NA
name: NA
Publisher: name: Unknown
Year: 2019
Subjects: subject: Demand and Price Analysis
subject: horizontal integration
subject: organization governance
subject: transaction costs
subject: asset specificity
subject: transaction uncertainty
subject: transaction frequency
subject: rural collective construction land (RCCL)

description: High transaction costs caused by dispersed and fragmented tracts, insecure tenure and incomplete information in rural land market has become a common issue in the transition economies. Horizontal integration may economize on transaction costs but aggrandize governance inputs. Therefore trade-off between integration and governance is one of the biggest challenges in land commercialization and rural restructuring worldwide. Resorting to a field survey in Nanhai District, Guangdong Province, this work estimates how the transaction costs of rural collective construction land are influenced by the horizontal integration degree and the level of self-organization governance of collectives. Four Tobit models are constructed based on the scale of collectives and the results show that: (1) There is an almost U-shaped relationship between the horizontal integration degree of the collectives and the transaction costs. The horizontal integration among shareholders can not only centralize the fragmented land assets from individual farmers and reduce the transaction costs of rural construction land, but also result in organization costs. The transaction costs are not decreasing as the horizontal integration increases until the transaction costs saved are equal to resultant organization. (2) The more collective leaders, the higher organization costs and the more opportunism behaviors, which will give rise to the transaction costs. This suggests that the Chinese authorities should strengthen the ongoing efforts to reduce the transaction costs of market and improve the efficiency through a more transparent and accessible market and optimal scale of horizontal integration of the collective. Our work sheds some light on the mechanisms at play in the reform and innovation of rural grass-root governance and it contributes to a better understanding of land-based shareholding cooperation system and nature of ongoing rural construction land market in China and transitional economies.