cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Pitfalls in interventional X-ray organ dose assessment -- combined experimental and computational phantom study: application to prostatic artery embolization
Creators: name: Roser, Philipp
name: Birkhold, Annette
name: Zhong, Xia
name: Ochs, Philipp
name: Stepina, Elizaveta
name: Kowarschik, Markus
name: Fahrig, Rebecca
name: Maier, Andreas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: With X-ray radiation protection and dose management constantly gaining interest in interventional radiology, novel procedures often undergo prospective dose studies using anthropomorphic phantoms to determine expected dose values. Due to inherent uncertainties, these dose values might not allow for patient-specific risk assessment. Therefore, first the aim of this study is to quantify the influence of these parameters on local X-ray dose to evaluate their relevance in the assessment of patient-specific organ doses. Second, this knowledge further enables validating a simulation approach, which allows employing physiological material models and patient-specific geometries. Phantom dosimetry experiments using MOSFET dosimeters were conducted reproducing imaging scenarios in prostatic arterial embolization (PAE). Associated organ-equivalent dose of prostate, bladder, colon and skin was determined. Dose deviation induced by possible small displacements of the patient was reproduced by moving the X-ray source. Dose deviation induced by material differences was investigated by analyzing two different commonly used phantoms. We reconstructed the experiments using Monte Carlo (MC) simulations, a reference male geometry, and different material properties. Overall, MC simulated organ dose values are in accordance with the measured ones for the majority of cases. Marginal displacements of X-ray source relative to the phantoms lead to deviations of 6% to 135% in organ dose values, while skin dose remains relatively constant. Regarding the impact of phantom material composition, underestimation of internal organ dose values by 12% to 20% is prevalent in all simulated phantoms. Skin dose, however, can be estimated with low deviation of 1% to 8% at least for two materials. Prospective reference dose studies might not extend to precise patient-specific dose assessment.
description: 10 pages, 4 figures, 4 tables, Int J Comput Assist Radiol Surg
Constraining isovector nuclear interactions with giant resonances within a Bayesian approach
Creators: name: Xu, Jun
name: Zhou, Jia
name: Zhang, Zhen
name: Xie, Wen-Jie
name: Li, Bao-An
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We put a stringent constraint on the isovector nuclear interactions in the Skyrme-Hartree-Fock model from the centroid energy $E_{-1}$ of the isovector giant dipole resonance in $^{208}$Pb as well as its electric polarizability $α_D$. Using the Bayesian analysis method, $E_{-1}$ and $α_D$ are found to be mostly determined by the nuclear symmetry energy $E_{sym}$ at about $ρ^\star=0.05$ fm$^{-3}$ and the isovector nucleon effective mass $m_v^\star$ at the saturation density. At $90\%$ confidence level, we obtain $E_{sym}(ρ^\star) = 16.4 ^{+1.0}_{-0.9}$ MeV and $m_v^\star/m = 0.79 ^{+0.06}_{-0.06}$.
description: 5 pages, 5 figures
Ulam Spirals in Nature, Cosmos, and Systems: A Unified Framework of Emergent Patterns
Creators: name: Bostick, Devin
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Theoretical physics
subject: Quantum physics
subject: Prime numbers
subject: Nonlinear Dynamics
subject: Astronomy
subject: Mathematics
subject: FOS: Mathematics
subject: Mathematics
subject: Pure mathematics
subject: Applied mathematics
subject: Computational Biology
subject: Computational science
subject: Computational neuroscience
subject: Computational Chemistry

description: 1. Expanded CODES Framework (Empirical Studies + Theory)

🔹 CODES: The Chirality of Dynamic Emergent Systems (Main Paper)

2. Introduction & High-Level Overview

🔹 CODES: High-Level Introduction

3. Structured Resonance & Emergent Intelligence

🔹 Structured Resonance and the Nature of Intelligence

 

 

Abstract

This paper explores the surprising recurrence of Ulam spiral-like structures—geometrical patterns based on the distribution of prime numbers—across multiple domains, from galactic formations to biological growth and natural systems. We propose that these spirals represent a universal emergent pattern in both physical and abstract systems, driven by fundamental constraints on growth, energy distribution, and structured resonance. Seven distinct examples are highlighted, showcasing the potential for multi-scale symmetry across cosmic, biological, and computational systems.
A universal conformal field theory approach to the chiral persistent currents in the mesoscopic fractional quantum Hall states
Creators: name: Georgiev, Lachezar S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a general and compact scheme for the computation of the periods and amplitudes of the chiral persistent currents, magnetizations and magnetic susceptibilities in mesoscopic fractional quantum Hall disk samples threaded by Aharonov--Bohm magnetic field. This universal approach uses the effective conformal field theory for the edge states in the quantum Hall effect to derive explicit formulas for the corresponding partition functions in presence of flux. We point out the crucial role of a special invariance condition for the partition function, following from the Bloch-Byers-Yang theorem, which represents the Laughlin spectral flow. As an example we apply this procedure to the Z_k parafermion Hall states and show that they have universal non-Fermi liquid behavior without anomalous oscillations. For the analysis of the high-temperature asymptotics of the persistent currents in the parafermion states we derive the modular S-matrices constructed from the S matrices for the u(1) sector and that for the neutral parafermion sector which is realized as a diagonal affine coset.
description: 45 pages, LaTeX2e, 4 EPS figures, 1 table, for related color figures see http://theo.inrne.bas.bg/~lgeorg/PF_k.html
title: Coworking Spaces im Münsterland
Creators: name: Röckinghausen, Simon
name: Clever, Nico
name: Köffer, Sebastian
Publisher: name: FH Münster - University of Applied Sciences
Year: 2021

description: Coworking Spaces sind mittlerweile fester Bestandteil der digitalen Arbeitslandschaft in Großstädten. Nach und nach halten sie auch im ländlichen Raum Einzug. Studien und Modellprojekte haben bewiesen, dass sie sowohl gesellschaftlich als auch wirtschaftlich eine positive Wirkung auf strukturschwächere Regionen haben können. Sie bieten ein attraktives Umfeld für Kreative und Gründer und ermöglichen den Austausch mit lokalen Unternehmen. Außerdem können sie dafür sorgen, dass Pendler* innen zum Arbeiten vor Ort bleiben. In weniger dicht besiedelten Regionen, wie dem Münsterland, ist der profitable Betrieb von Coworking Spaces bisweilen schwierig. Da naturgemäß die Standortwahl eines Coworking Space ein entscheidendes Kriterium für seine spätere Wirtschaftlichkeit ist, wird diese in der vorliegenden Studie untersucht. Dazu werden auf Coworking Spaces zugeschnittene und von Experten gewichtete Standortfaktoren aufgestellt und die 65 Orte des Münsterlands anhand dieser Faktoren bewertet. So entsteht ein Ranking, welches aufzeigt, wo die besten Voraussetzungen für Coworking Spaces herrschen. In einigen Städten im Münsterland gibt es bereits Coworking Spaces. Einem Großteil dieser Orte wird durch diese Studie eine gute Eignung bestätigt. Beispielsweise schneiden Rheine und Bocholt aufgrund ihrer hohen Einwohnerzahl am besten ab. Es wird jedoch deutlich, dass auch andere Faktoren ausschlaggebend sein können. So bewerten Expert*innen die digitale Infrastruktur und Erreichbarkeit als sehr wichtig. Für diese Faktoren stellen vergleichsweise kleine Orte die Bestwerte, die bislang noch keine Coworking Spaces vorweisen können. Die Ergebnisse informieren Betreiber*innen von Coworking Spaces und solche, die es werden wollen, sowie politische Entscheidungsträger*innen über mögliche Potenziale in den jeweiligen Orten. Sie zeigen auf, an welchen Stellschrauben gedreht werden kann, um gute Voraussetzungen zu schaffen. Darüber hinaus wird empfohlen, das entstehende Angebot aufeinander abzustimmen und gemeinschaftlich vorzugehen – so, wie es der Begriff Coworking bereits verdeutlicht.
Tectoribates borealis Behan-Pelletier and Walter 2013
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Oribatellidae
Tectoribates
Tectoribates borealis

description: Tectoribates borealis Behan-Pelletier and Walter, 2013
 Geographic Location: AB: (53.57580948, -112.461479); (51.41223526, -112.587357); ABMI Sites (Behan-Pelletier & Walter 2013; Walter et al. 2014).
 Habitats: soil below elk and cow dung; moderately fresh buffalo dung; prairie herbage and soil below; litter in agricultural field; bog with an understory of labrador tea, sphagnum, lichen; grass and sedge sod.
 Distribution: Canada.
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 112, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
Farm Structure and the Effects of Agri-Environmental Programs: Results from a Matching Analysis for European Countries
Creators: name: Pufahl, Andrea
name: Weiss, Christoph R.
name: Pufahl, Andrea
name: Weiss, Christoph R.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: evaluation
subject: agri-environment programs
subject: propensity score matching
subject: Germany
subject: Italy
subject: Spain
subject: France
subject: Portugal
subject: United Kingdom
subject: The Netherlands
subject: EU-15

description: This paper extends previous research (Pufahl and Weiss, 2009) and applies a semi-parametric propensity score matching approach to evaluate the effects of agrienvironment (AE) programs on input use and farm output of individual farms in eight Member States of the European Union. We find substantial differences in treatment effects between countries. The analysis reveals significant effects of AE participation on production (Germany, France) and farm profits (France, Ireland, United Kingdom). AE participation sporadically reduces the intensity of land use as measured by the purchase of farm chemicals (fertilizer, pesticide) and grazing livestock densities. We also find differences in the treatment effect among farms with different farm size (heterogeneous treatment effects).
Integer Spin Hall Effect in Ballistic Quantum Wires
Creators: name: Bellucci, S.
name: Onorato, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the ballistic electron transport in a two dimensional Quantum Wire under the action of an electric field ($E_y$). We demonstrate how the presence of a Spin Orbit coupling, due to the uniform electric confinement field gives a non-commutative effect as in the presence of a transverse magnetic field. We discuss how the non commutation implies an edge localization of the currents depending on the electron spins also giving a semi-classical spin dependent Hall current. We also discuss how it is possible obtain a quantized Spin Hall conductance in the ballistic transport regime by developing the Landauer formalism and show the coupling between the spin magnetic momentum and the orbital one due to the presence of a circulating current.
description: 7 pages, 5 figures, accepted for publication in Phys. Rev. B, PACS: 72.25.-b, 72.10.-d, 72.15.Rn, 73.23.-b, 71.10.Pm
Inheritance of resistance to pepper yellow leaf curl virus (PepYLCV) in hot pepper (Capsicum annuum L.)
Creators: name: Maneeya Tanpao, Petcharat Thummabenjapone
Publisher: name: Faculty of Agriculture
Year: 2021
Subjects: generation mean analysis
Begomovirus, PepYLCV
hot pepper
resistant varieties

description: Khon Kaen Agriculture Journal, 49, 2, 334-344
Using Gaia DR2 to solve differential color refraction and charge transfer efficiency issues
Creators: name: Lin, F. R.
name: Peng, Q. Y.
name: Zheng, Z. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Gaia DR2 catalog released in 2018 gives information about more than one billion stars, including their extremely precise positions that are not affected by the atmosphere, as well as the magnitudes in the G, RP, and BP passbands. This information provides great potential for the improvement of the ground-based astrometry. Based on Gaia DR2, we present a convenient method to calibrate the differential color refraction (DCR). This method only requires observations with dozens of stars taken through a selected filter. Applying this method to the reduction of observations captured through different filters by the 1-m and 2.4-m telescopes at Yunnan Observatory, the results show that the mean of the residuals between observed and computed positions (O-C) after DCR correction is significantly reduced. For our observations taken through an N (null) filter, the median of the mean (O-C) for well-exposed stars (about 15 G-mag) decreases from 19 mas to 3 mas, thus achieving better accuracy, i.e. mean (O-C). Another issue correlated is a systematic error caused by the poor charge transfer efficiency (CTE) when a CCD frame is read out. This systematic error is significant for some of the observations captured by the 1-m telescope at Yunnan Observatory. Using a sigmoidal function to fit and correct the mean (O-C), a systematic error up to 30 mas can be eliminated.
The assessment of the social impact of the Civil Service Vol. To in the year 2019 - Project work
Creators: name: Brescia, Valerio
name: Caria, Maida
name: Mapelli, Elena
Publisher: name: Zenodo
Year: 2020

description: The assessment of the social impact of the Civil Service Vol. To in the year 2019 - Project work
Impact of Public Market Information System (PMIS) on Farmers Food Marketing Decisions: Case of Benin
Creators: name: Kpenavoun Chogou, Sylvain
name: Lebailly, Philippe
name: Adegbidi, Anselme
name: Gandonou, Esaie
name: Kpenavoun Chogou, Sylvain
name: Lebailly, Philippe
name: Adegbidi, Anselme
name: Gandonou, Esaie
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Public Market Information System
subject: farmers
subject: modes of transaction
subject: liberalization

description: To sell their surpluses of maize, the main staple in Benin, farmers may choose among three modes of transaction: they may sell under a contract with itinerant traders, or they may sell without a contract at the farmgate or on distant markets. It has been postulated that farmers may choose a profitable mode of transaction if they have good access to information on the prevailing market conditions. Using detailed farm household survey data from Benin, this paper applies the Nested Logit model to test this hypothesis. The results show that farmers are likely to opt for selling at the farmgate without a contract if they have good access to information. However, such a decision may not be related to access to information through the government supported 'Public Market Information System' but rather it is likely to be induced by access to information through farmers' own social networks.
The single-sided pulsator CO~Camelopardalis
Creators: name: Kurtz, D. W.
name: Handler, G.
name: Rappaport, S. A.
name: Saio, H.
name: Fuller, J.
name: Jacobs, T.
name: Schmitt, A.
name: Jones, D.
name: Vanderburg, A.
name: LaCourse, D.
name: Nelson, L.
name: Aliçavuş, F. Kahraman
name: Giarrusso, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: CO~Cam (TIC 160268882) is the second ``single-sided pulsator'' to be discovered. These are stars where one hemisphere pulsates with a significantly higher amplitude than the other side of the star. CO~Cam is a binary star comprised of an Am $δ$~Sct primary star with $T_{\rm eff} = 7070 \pm 150$\,K, and a spectroscopically undetected G main-sequence secondary star. The dominant pulsating side of the primary star is centred on the L$_1$ point. We have modelled the spectral energy distribution combined with radial velocities, and independently the {\em TESS} light curve combined with radial velocities. Both of these give excellent agreement and robust system parameters for both stars. The $δ$~Sct star is an oblique pulsator with at least four low radial overtone (probably) f~modes with the pulsation axis coinciding with the tidal axis of the star, the line of apsides. Preliminary theoretical modelling indicates that the modes must produce much larger flux perturbations near the L$_1$ point, although this is difficult to understand because the pulsating star does not come near to filling its Roche lobe. More detailed models of distorted pulsating stars should be developed. These newly discovered single-sided pulsators offer new opportunities for astrophysical inference from stars that are oblique pulsators in close binary stars.
description: 18 pages, 18 figures
On Inhomogeneity of a String Bit Model for Quantum Gravity
Creators: name: lee, C. -W. H.
name: Mann, R. B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study quantum gravitational effect on a two-dimensional open universe with one particle by means of a string bit model. We find that matter is necessarily homogeneously distributed if the influence of the particle on the size of the universe is optimized.
description: 16 pages, LaTeX2e
Hadronic processes within collective stellar winds
Creators: name: Domingo-Santamaria, Eva
name: Torres, Diego F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recently, we have proposed that the interaction between relativistic protons resulting from Fermi first order acceleration in the superbubble of a stellar OB association or in other nearby accelerator and ions residing in single stellar winds of massive stars could lead to TeV sources without strong counterparts at lower energies. Here we refine this analysis in several directions. We study collective wind configurations produced by a number of massive stars, and obtain densities and expansion velocities of the stellar wind gas that is to be target of hadronic interactions. We study the expected $γ$-ray emission from these regions, considering in an approximate way the effect of cosmic ray modulation. We compute secondary particle production (electrons from knock-on interactions and electrons and positrons from charged pion decay), and solve the loss equation with ionization, synchrotron, bremsstrahlung, inverse Compton, and expansion losses. We provide examples where configurations can produce sources for GLAST satellite, and the MAGIC/HESS/VERITAS telescopes in non-uniform ways, i.e., with or without the corresponding counterparts. We show that in all cases we studied no EGRET source is expected. Finally, we comment on HESS J1303-631 and on Cygnus OB 2 and Westerlund 1 as two associations where this scenario could be tested.
description: Accepted for publication in A&A
Recursive Chirality Mapping: Meta-Chirality in Systems
Creators: name: Bostick, Devin
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Wavelet Analysis
subject: Theoretical physics
subject: Quantum physics
subject: Quantum Theory
subject: Artificial intelligence
subject: Quantum field theory
subject: Astronomy

description: 1. Expanded CODES Framework (Empirical Studies + Theory)

🔹 CODES: The Chirality of Dynamic Emergent Systems (Main Paper)

2. Introduction & High-Level Overview

🔹 CODES: High-Level Introduction

3. Structured Resonance & Emergent Intelligence

🔹 Structured Resonance and the Nature of Intelligence

 

Abstract

This paper introduces Recursive Chirality Mapping, a new extension of Chirality of Dynamic Emergent Systems (CODES), which explores how chirality not only exists across systems but also recursively folds back on itself. This recursive property reveals that patterns scale from quantum states to cosmological structures, neural systems, and social dynamics, forming nested, fractal-like layers of symmetry and asymmetry.

By identifying nested chiral dynamics, this paper offers a framework for understanding how local processes scale into global structures, providing a powerful tool for analyzing emergent phenomena in complex systems.
Tectoribates campestris Behan-Pelletier and Walter 2013
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Oribatellidae
Tectoribates
Tectoribates campestris

description: Tectoribates campestris Behan-Pelletier and Walter, 2013
 Geographic Location and Habitats: ON: nr. Ottawa, Penstamon, Campanula under Juniper in alvar (Behan-Pelletier & Walter, 2013).
 Distribution: Canada.
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 112, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
CODES in Nature: Structured Resonance in Trees, Volcanoes, Mountains, and Tectonic Plates
Creators: name: Bostick, Devin
Publisher: name: Zenodo
Year: 2025
Subjects: subject: CODES
subject: Structured Resonance
subject: Chirality in Nature
subject: Emergent Systems
subject: Complexity Theory
subject: Self-Organizing Systems
subject: Dynamic Systems Theory
subject: Natural Patterns
subject: Fractal Geometry
subject: Geological Processes
subject: Geological process
subject: Biological process
subject: Mountain Formation
subject: Volcanic Activity
subject: Plate Tectonics
subject: Tree Growth Dynamics
subject: Ecosystem Evolution
subject: Mathematical Modeling in Nature
subject: Wave Resonance
subject: Nonlinear Dynamics
subject: Phase Transitions
subject: Phase Transition
subject: Frequency Harmonization
subject: Resonant Frequency Analysis
subject: Applied Mathematics
subject: FOS: Mathematics
subject: Earth Systems Science
subject: Biophysics
subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Geophysics
subject: Environmental Science
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Evolutionary biology
subject: Interdisciplinary Research

description: 1. Expanded CODES Framework (Empirical Studies + Theory)

🔹 CODES: The Chirality of Dynamic Emergent Systems (Main Paper)

2. Introduction & High-Level Overview

🔹 CODES: High-Level Introduction

3. Structured Resonance & Emergent Intelligence

🔹 Structured Resonance and the Nature of Intelligence

 

Abstract

This paper explores how natural systems such as trees, volcanoes, mountains, and tectonic plates reflect CODES principles—balancing chaos and order to create fractal structures and emergent patterns. We use structured resonance theory and mathematical modeling to show how these systems self-organize, adapt, and resonate across different scales. By applying wavelet analysis and fractal geometry, we demonstrate that seemingly chaotic phenomena are governed by underlying order and feedback loops.

I love the mountains and have been thinking about this for a while. Michael Wysession's How Earth Works, made me wonder: they can't be random. The earth as a matter condensation system, infinitely fractals. The simplicity is beautiful.
Partly Occupied Wannier Functions
Creators: name: Thygesen, K. S.
name: Hansen, L. B.
name: Jacobsen, K. W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We introduce a scheme for constructing partly occupied, maximally localized Wannier functions (WFs) for both molecular and periodic systems. Compared to the traditional occupied WFs the partly occupied WFs posses improved symmetry and localization properties achieved through a bonding-antibonding closing procedure. We demonstrate the equivalence between bonding-antibonding closure and the minimization of the average spread of the WFs in the case of a benzene molecule and a linear chain of Pt atoms. The general applicability of the method is demonstrated through the calculation of WFs for a metallic system with an impurity: a Pt wire with a hydrogen molecular bridge.
description: 5 pages, 4 figures
Additional file 1 of Association between atherogenic index of plasma and coronary artery calcification progression in Korean adults
Creators: name: Nam, Ji Sun
name: Kim, Min Kyung
name: Nam, Joo Young
name: Kahui Park
name: Shinae Kang
name: Ahn, Chul Woo
name: Park, Jong Suk
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Physiology
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Hematology
subject: 60506 Virology

description: Additional file 1: Supplementary Table 1. Odds ratios for CAC progression according to AIP tertiles
Joint statistics of acceleration and vorticity in fully developed turbulence
Creators: name: Biferale, Luca
name: Toschi, Federico
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We report results from a high resolution numerical study of fluid particles transported by a fully developed turbulent flow. Single particle trajectories were followed for a time range spanning more than three decades, from less than a tenth of the Kolmogorov time-scale up to one large-eddy turnover time. We present results concerning acceleration statistics and the statistics of trapping by vortex filaments conditioned to the local values of vorticity and enstrophy. We distinguish two different behaviors between the joint statistics of vorticity and centripetal acceleration or vorticity and longitudinal acceleration.
description: 8 pages, 6 figures
The Persistence of Small Farms and Poverty Levels in Nigeria: An Empirical Analysis
Creators: name: Apata, Temidayo Gabriel
name: Rahji, M.A.Y.
name: Samuel, K.D.
name: Igbalajobi, O.A
name: Apata, Temidayo Gabriel
name: Rahji, M.A.Y.
name: Samuel, K.D.
name: Igbalajobi, O.A
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: International Development
subject: Heterogeneity index
subject: Poverty Differential
subject: Institutional Development
subject: Structural Constraints
subject: Nigeria

description: Small farmers are one of the more disadvantaged and vulnerable groups in Nigeria. Studies have shown that majority of people living in absolute poverty can be found on small farms with half in this group undernourished. The study examined heterogeneity in circumstances and diversity in rural agriculture, the persistence of small farms, poverty and institutional development and facilities. Data for this study came from Nigerian living Standard Survey (NLSS) which covered the two periods 1994/2004. The data set consists of 9550 respondents’ but only 8264 cases were useful for this study. The index of heterogeneity at 29.1 indicated persistence of small farms in the two periods under consideration. Persistence of small farms and poverty are closely related (r = 0.674). The poverty differential in the two surveys data revealed that poverty increased by 14.72%. Disaggregation analysis indicated that institutional development and facilities improved farm outputs, diversification to non-farm and reduction in poverty. Access to these institutional facilities can enable the small farmers to rearticulate their livelihood activities. Policy makers need to show more commitment to develop agriculture through identifying and providing the capacity need of small farmers in order for them to absorb and used whatever modern techniques introduced.
Automorphisms of p-groups of maximal class
Creators: name: Caranti, Andrea
name: Mattarei, Sandro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20D15; 20D45

description: Juhasz has proved that the automorphism group of a group G of maximal class of order p^n, with p\ge 5 and n>p+1, has order divisible by $p^{\lceil(3n-2p+5)/2\rceil}$. We show that by translating the problem in terms of derivations, the result can be deduced from the case where G is metabelian. Here one can use a general result of Caranti and Scoppola concerning automorphisms of two-generator, nilpotent metabelian groups.
description: 8 pages
Tectoribates Berlese 1910
Creators: name: Behan-Pelletier, Valerie M.
name: Lindo, Zoë
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Oribatellidae
Tectoribates

description: Tectoribates sp.
 Geographic Location and Habitats: SK: Matador IBP Site, dry, mixed prairie (Willard 1974); ON: Sudbury, Jack pine and White birch (St. John et al. 2002); QC: Mont Tremblant, Black spruce forest (Behan et al. 1978).
 Remarks: These records are sub Anoribatella.
 Genus Tegoribates Ewing, 1917
description: Published as part of Behan-Pelletier, Valerie M. & Lindo, Zoë, 2019, Checklist of oribatid mites (Acari: Oribatida) of Canada and Alaska, pp. 1-180 in Zootaxa 4666 (1) on page 112, DOI: 10.11646/zootaxa.4666.1.1, http://zenodo.org/record/4000595
Small farms in Italy between decline and innovative formula: an entrepreneurial model analysis
Creators: name: Capitanio, Fabian
name: Adinolfi, Felice
name: Malorgio, Giulio
name: Capitanio, Fabian
name: Adinolfi, Felice
name: Malorgio, Giulio
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Farmers strategic profile
subject: enterpreneurial analysis
subject: rural development

description: During the three-year period of our investigation, we found that the weight of family run farms declined and there was an increase in the role of farms integrated in the market and in integrated low-impact farm. This is a partial change which may be an indicator of a greater capacity of the entrepreneurial fabric to come to the market and the ability to capitalise on the relationship between farm and territory. Comparison between the two periods observing the behaviour of common farmers confirmed the substantial stability of the reference framework and offered further scope for interpretation. First, only about 22% changed their strategic profile. Shifts between strategic profiles especially affected family-run farms and light weighted specialised farms (17%). In particular, there was a major shift from the family-run type to the small, specialised farm. By contrast, the shift from the area of specialisation to the family-run type was less marked, and mostly concerned farms situated in marginal areas with less labour employed on the farm. Another element to be taken into consideration is that the second strategic profile, which has a positive balance of some importance, is that of integrated low-impact farms.
Compliance with international food safety standards as an outcome of a Nash bargaining process: a case study on Kenyan small scale green beans farms
Creators: name: Nimenya, Nicodeme
name: Frahan, Bruno Henry De
name: Ndimira, Pascal-Firmin
name: Nimenya, Nicodeme
name: Frahan, Bruno Henry De
name: Ndimira, Pascal-Firmin
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Consumer/Household Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: bargaining
subject: small-scale farm
subject: voice

description: This study provides a stylized model on “Exit, voice and loyalty” as alternative strategic responses taken by Kenyan green beans farmers in the context of new and more stringent international food safety standards. On the analytical side, we use the Nash bargaining theory where the exporter and a representative grower bargain over the product quality level and the premium producer price. The comparative statics analysis shows that the producer bargaining power unlike the compliance costs has, ceteris paribus, a positive effect on the equilibrium quality level while these exogenous variables have ambiguous effects on producer price at equilibrium. Empirical results from logit model estimation with survey data at farm-level in Kenya show that households with highly educated members, access to credit and relatively large-size farms are more likely to participate in the certified supply chain. Off-farm income, live assets and distance of public services from the farm do not influence the compliance. In terms of policy implications, education and credit access could play an important role in the capacity-building of small-scale growers associations through public private partnership.
Recurring Homologous Solar Eruptions in NOAA AR 11429
Creators: name: Dhakal, Suman K.
name: Zhang, Jie
name: Vemareddy, Panditi
name: Karna, Nishu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the study of three homologous solar eruptions from NOAA active region (AR) 11429 over four days. This large and complex AR divided into two relatively simple sub-regions: northeast (NE) and southwest (SW). Recurrent eruptions occurred from the SW sub-region over different evolutionary phases, which provided a unique opportunity to isolate the physical processes responsible for solar eruptions. Persistent shearing and convergence of opposite magnetic polarities led to continuous flux cancellation along the SW polarity inversion line (PIL). A filament persistently lying along the SW-PIL was observed to survive each eruption, which suggests the partial eruption of the magnetic system. Further, following the first and second eruptions, a sigmoidal magnetic structure of similar morphology was reformed along the SW-PIL. The photospheric motion of magnetic flux continuously injected and stored the negative helicity in the partially erupted magnetic system and built up the magnetic free energy for the successive eruptions. These results suggest that the shearing motion and magnetic flux cancellation of opposite fluxes were: (1) the dominant factor, irrespective of the evolutionary phase, that contributed to the recurrent homologous eruption, and (2) the key processes of forming the erupting structure, likely a magnetic flux rope, and its long-lasting continuation results in reformation of identical erupting structure. The study also finds that similar magnetic topology could result in the magnetic reconnection at the same location, and such flares during the precursor phase would help in the eruption by decreasing the constraint of overlying magnetic field.
description: 16 pages, 12 figures, accepted for publication in ApJ
Finding the Balance Between Agricultural and Trade Policy: Rwanda Coffee Policy in Flux
Creators: name: Tardif-Douglin, David
name: Ngirumwami, Jean Leonard
name: Shaffer, James D.
name: Murekezi, Anastase
name: Kampayana, Theobald
name: Tardif-Douglin, David
name: Ngirumwami, Jean Leonard
name: Shaffer, James D.
name: Murekezi, Anastase
name: Kampayana, Theobald
Publisher: name: Unknown
Year: 1996
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: food security
subject: food policy
subject: trade policy

description: Coffee is the principal source of foreign exchange for Rwanda. Over the years the predominating coffee policy has been to remunerate coffee producing highly to ensure sufficient production and foreign exchange receipts. The current policy debate focuses on whether the government can remove or modify coffee laws in existence since 1978 in such a way as to reduce the burden of the State and return crop choice to farmers without bringing about a catastrophic collapse in foreign exchange inflows.
Stellar populations and Lyman-alpha emission from lensed z > 6 galaxies
Creators: name: Schaerer, Daniel
name: Pello, Roser
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from an SED analysis of two lensed high-z objects, the z=6.56 galaxy HCM6A behind the cluster Abell 370 discovered by Hu et al. (2002) and the triple arc at z~7 behind Abell 2218 found by Kneib et al. (2004). For HCM 6A we find indications for the presence of dust in this galaxy, and we estimate the properties of its stellar populations (SFR, age, etc.), and the intrinsic Lyman-alpha emission. From the "best fit" reddening (E(B-V)~0.25) its estimated luminosity is L~(1-4)e.+11 Lsun, in the range of luminous infrared galaxies. For the arc behind Abell 2218 we find a most likely redshift of z~6.0-7.2 taking into account both our photometric determination and lensing considerations. SED fits indicate generally a low extinction but do not strongly constrain the SF history. Best fits have typical ages of ~3 to 400 Myr. The apparent 4000 Ang break observed recently by Egami et al. (2004) from combination of IRAC/Spitzer and HST observations can also well be reproduced with templates of young populations (~15 Myr or even younger) and does not necessarily imply old ages. Finally, we briefly examine the detectability of dusty lensed high-z galaxies with Herschel and ALMA.
description: To appear in "Impact Of Gravitational Lensing On Cosmology", IAU Symposium 225, Eds. Y. Mellier and G. Meylan
Fighting an Uphill Battle: Population Pressure and Declining Land Productivity in Rwanda
Creators: name: Clay, Daniel C.
name: Clay, Daniel C.
Publisher: name: Unknown
Year: 1996
Subjects: subject: Land Economics/Use
subject: Productivity Analysis
subject: food security
subject: food policy
subject: demographic change

description: The research reported here draws attention to the structure of landholding as a set of mechanisms through which demographic changes in agrarian societies can alter the natural environment.
Pedagogical Agents for Fostering Question-Asking Skills in Children
Creators: name: Alaimi, Mehdi
name: Law, Edith
name: Pantasdo, Kevin Daniel
name: Oudeyer, Pierre-Yves
name: Sauzeon, Helene
Publisher: name: arXiv
Year: 2020
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences
subject: K.3.0; K.3.1; K.4.2; J.0; J.4

description: Question asking is an important tool for constructing academic knowledge, and a self-reinforcing driver of curiosity. However, research has found that question asking is infrequent in the classroom and children's questions are often superficial, lacking deep reasoning. In this work, we developed a pedagogical agent that encourages children to ask divergent-thinking questions, a more complex form of questions that is associated with curiosity. We conducted a study with 95 fifth grade students, who interacted with an agent that encourages either convergent-thinking or divergent-thinking questions. Results showed that both interventions increased the number of divergent-thinking questions and the fluency of question asking, while they did not significantly alter children's perception of curiosity despite their high intrinsic motivation scores. In addition, children's curiosity trait has a mediating effect on question asking under the divergent-thinking agent, suggesting that question-asking interventions must be personalized to each student based on their tendency to be curious.
description: Accepted at CHI 2020
An Economic and Institutional Analysis of Maize Research in Kenya
Creators: name: Karanja, Daniel David
name: Karanja, Daniel David
Publisher: name: Unknown
Year: 1996
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: food security
subject: food policy
subject: maize

description: Maize, the most important food crop in Kenya, contributes 44 percent of the per-capita, calorie intake. Increases in maize production over the past three decades have been attributed to the availability and adoption of modern maize techniques, especially fertilizer and hybrid seed. This paper estimates the rate of return to maize research to be 53 to 61 percent, and reveals that his impact was aided by complementary agricultural extension and seed multiplication and distribution programs. The paper describes the institutional framework that may have led to one of Kenya’s agricultural research success stories. It also poses challenges to the future of maize production in Kenya.
A Standard Communication Framework for AI Using CODES: Leveraging Chirality-Driven Structured Resonance for Optimized AI Interaction
Creators: name: Bostick, Devin
Publisher: name: Zenodo
Year: 2025
Subjects: subject: CODES
subject: Structured Resonance
subject: Chiral Wavelets
subject: Wavelet Analysis
subject: Emergent Intelligence
subject: Phase-Locked Coherence
subject: Prime-Based Patterns
subject: Cosmic Emergence
subject: Dynamic Systems Theory
subject: AI Optimization
subject: Phase-Based AI Synchronization
subject: Semantic Drift Detection
subject: AI Communication Framework
subject: Wavelet Transform in AI
subject: Multi-Scale Encoding
subject: Riemann Hypothesis
subject: Harmonic Analysis
subject: Fractal Geometry
subject: Nonlinear Dynamics
subject: Prime Number Theory
subject: Phase-Locked Encryption
subject: Prime Gap Hashing
subject: Resilience Check
subject: Information Integrity
subject: Complex Systems
subject: Interdisciplinary Research
subject: Systems Biology
subject: AI Ethics and Safety

description: 1. Expanded CODES Framework (Empirical Studies + Theory)

🔹 CODES: The Chirality of Dynamic Emergent Systems (Main Paper)

2. Introduction & High-Level Overview

🔹 CODES: High-Level Introduction

3. Structured Resonance & Emergent Intelligence

🔹 Structured Resonance and the Nature of Intelligence

 

Abstract

This paper introduces a Standard Communication Library for AI, built on the principles of CODES (Chirality of Dynamic Emergent Systems). The library leverages structured resonance, chirality-driven waveforms, and dynamic equilibrium to establish robust, context-adaptive communication protocols between AI agents. By integrating prime-based structuring, continuous wavelet transforms (CWTs), and phase-locked coherence, this framework optimizes semantic alignment and multi-agent interaction while minimizing ambiguity.
Quantum Corrections to Newton's Law in Resummed Quantum Gravity
Creators: name: Ward, B. F. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the elements of resummed quantum gravity, a new approach to quantum gravity based on the work of Feynman using the simplest example of a scalar field as the representative matter. We show that we get a UV finite quantum correction to Newton's law.
description: 4 pages, 1 figure; presented by B.F.L. Ward at DPF2004
Witnessing Entanglement with Second-Order Interference
Creators: name: Stobińska, Magdalena
name: Wódkiewicz, Krzysztof
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Second-order interference and Hanbury-Brown and Twiss type experiments can provide an operational framework for the construction of witness operators that can test classical and nonclassical properties of a Gaussian squeezed state (GSS), and provide entanglement witness operators to study the separability properties of correlated Gaussian squeezed sates.
description: 10 pages, 12 figures
Food Marketing and Pricing Policy in Eastern and Southern Africa: Lessons for Increasing Agricultural Productivity and Access to Food
Creators: name: Jayne, Thomas S.
name: Jones, Stephen P.
name: Jayne, Thomas S.
name: Jones, Stephen P.
Publisher: name: Unknown
Year: 1996
Subjects: subject: Food Security and Poverty
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies
subject: food security
subject: food policy
subject: food marketing
subject: pricing policy

description: This study surveys the empirical record of grain marketing and pricing policy in selected Eastern and Southern Africa countries. The paper addresses five key issues with major implications for food policy in Africa: (a) why the anticipated supply response to market liberalization has not yet occurred; (b) why the common assumption of state taxation of farmers to support a cheap food policy does not apply in most of these countries; (c) why the temporary successes of the state-led approach to stimulating smallholder grain production were unsustainable; (d) why the elimination of government food subsidies associated with market reform has not adversely affected consumers; and (e) why marketing board deficits have risen rather than declined after the reforms were initiated in most countries.
Mapping images into ordinal networks
Creators: name: Pessa, Arthur A. B.
name: Ribeiro, Haroldo V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: An increasing abstraction has marked some recent investigations in network science. Examples include the development of algorithms that map time series data into networks whose vertices and edges can have different interpretations, beyond the classical idea of parts and interactions of a complex system. These approaches have proven useful for dealing with the growing complexity and volume of diverse data sets. However, the use of such algorithms is mostly limited to one-dimension data, and there has been little effort towards extending these methods to higher-dimensional data such as images. Here we propose a generalization for the ordinal network algorithm for mapping images into networks. We investigate the emergence of connectivity constraints inherited from the symbolization process used for defining the network nodes and links, which in turn allows us to derive the exact structure of ordinal networks obtained from random images. We illustrate the use of this new algorithm in a series of applications involving randomization of periodic ornaments, images generated by two-dimensional fractional Brownian motion and the Ising model, and a data set of natural textures. These examples show that measures obtained from ordinal networks (such as average shortest path and global node entropy) extract important image properties related to roughness and symmetry, are robust against noise, and can achieve higher accuracy than traditional texture descriptors extracted from gray-level co-occurrence matrices in simple image classification tasks.
description: 15 two-column pages, 6 figures; accepted for publication in Physical Review E