cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Boundary states for chiral symmetries in two dimensions
Creators: name: Smith, Philip Boyle
name: Tong, David
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Regular Article - Theoretical Physics
Conformal Field Theory
Field Theories in Lower Dimensions
Topological States of Matter

description: Abstract: We study boundary states for Dirac fermions in d = 1 + 1 dimensions that preserve Abelian chiral symmetries, meaning that the left- and right-moving fermions carry different charges. We derive simple expressions, in terms of the fermion charge assignments, for the boundary central charge and for the ground state degeneracy of the system when two different boundary conditions are imposed at either end of an interval. We show that all such boundary states fall into one of two classes, related to SPT phases supported by (−1)F , which are characterised by the existence of an unpaired Majorana zero mode.
MOESM2 of Making decisions about antipsychotics: a qualitative study of patient experience and the development of a decision aid
Creators: name: S. Kaar
name: C. Gobjila
name: E. Butler
name: C. Henderson
name: O. Howes
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. Your Medication Decision Aid.
Evaluation of Tillage Practices for Maize (Zea mays) Grown on Different Land-Use Systems in Eastern Zambia
Creators: name: Mafongoya, Paramu
name: Jiri, Obert
name: Phophi, Mutondwa
name: Mafongoya, Paramu
name: Jiri, Obert
name: Phophi, Mutondwa
Publisher: name: Unknown
Year: 2015
Subjects: Crop Production/Industries
Farm Management

description: Improved fallows of Sesbania sesban (Sesbania) have been known to improve soil physical and chemical properties and increase crop yield compared to traditional fallows. However, the effects of soil tillage practices after improved fallows on soil properties, weeds, labour and subsequent maize crop have not been assessed in Southern Africa. This study aimed to evaluate how tillage practices affect yield of maize and affect soil properties after two years of fallow and subsequent cropping phase. In this study, done at sites in eastern Zambia, maize yield from a two-year planted Sesbania, natural fallow, continuously fertilized and unfertilized maize were compared under conventional, flat till and zero tillage practices. A split plot experiment, with improved fallow systems in the main plot and the tillage practice in the subplot, was established at the sites. The results showed that the increases in grain yield under conventional tillage over zero tillage practice were 17.8% and 28.2% during 2000/2001 and 2001/2002 seasons, respectively, at Msekera. At Chadiza, the increases in grain yield under conventional tillage over zero tillage were 66.3% and 327.4% during 2000/2001 and 2001/2002 seasons, respectively. Greater maize yields were achieved under Sesbania planted fallows compared to the natural fallow and maize monoculture without fertilizer. Overall, zero tillage practice resulted in lower maize grain yield, higher bulk density, reduced water intake, higher weed infestation and high labour demand during weeding compared to conventional tillage.
Some no-go results in Quantum Thermodynamics
Creators: name: Guha, Tamal
name: Alimuddin, Mir
name: Parashar, Preeti
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Thermodynamics is one of the fascinating branches of traditional physics to certify the occurrence of many natural processes. On the other hand, quantum theory is the most acceptable description of the microscopic world. In the present work, we have studied how the structure of quantum theory prohibits cloning or masking of several thermodynamic quantities, viz., work and energy stored in a quantum state. Our results have important consequences in quantum partial cloning, quantum masking and on the action of quantum channels.
description: 7 pages, 2 figures
Petschek-like Reconnection with Current-driven Anomalous Resistivity and its Application to Solar Flares
Creators: name: Uzdensky, Dmitri A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Recent numerical simulations of magnetic reconnection in two dimensions have shown that, when the resistivity is strongly localized, the reconnection region develops a Petschek-like structure, with the width of the inner diffusion region being of the order of the resistivity localization scale. In this paper, we combine this fact with a realistic model for locally-enhanced anomalous resistivity generated by current-driven microturbulence. The result is a qualitative model of the reconnection layer where the size of Petschek's diffusion region and, therefore, the final reconnection rate are determined self-consistently in terms of the main parameters of the functional dependence of anomalous resistivity on the electric current density. We then consider anomalous resistivity due to ion-acoustic turbulence as a particular case. This enables us to express the reconnection region's parameters directly in terms of the basic parameters of the plasma. Finally, we apply this reconnection model to solar flares and obtain specific predictions for typical reconnection times, which are very consistent with observations.
description: 30 pages, 3 figures. Short version has been accepted by the Astrophysical Journal (vol.587 n1 -- April 10, 2003 issue)
A Comparison between Conventional Tilled and Bicropped Winter Wheat Grown in Monoculture over Four Years
Creators: name: Finnan, J. M.
name: Burke, J. I.
name: Thomas, T. M.
name: Finnan, J. M.
name: Burke, J. I.
name: Thomas, T. M.
Publisher: name: Unknown
Year: 2015
Subjects: Crop Production/Industries

description: A four year experiment was conducted at a site in the south-east of Ireland in which medium and high input conventional winter wheat production systems were compared to no input and low input systems in which winter wheat was direct drilled into an understory of white clover. Whole crop and grain yields from all systems were strongly related to external input levels, yields from bicropped treatments were poor. Nitrogen uptake and grain yields from the conventional treatments declined during the course of the study whereas nitrogen uptake and yields from bicropped treatments were more stable. Fertiliser N application significantly depressed biological production efficiency and altered biomass partitioning. The proportion of biomass partitioned to the stem decreased with fertiliser N, differences between treatments persisted until final harvest. Although the clover sward was still present in the fourth year, this component of the bicrop was gradually replaced by weeds as the experiment progressed in spite of several attempts to control weeds. It is suggested that further research is needed to identify a clover management strategy which ensures the persistence of the white clover sward and allows it to enrich soil fertility in such a way as to be of benefit to the accompanying wheat crop.
Economics over Risk: Flooding Is Not the Only Driving Factor of Migration Considerations on a Vulnerable Coast
Creators: name: Correll, Rachel M.
name: Lam, Nina S. N.
name: Mihunov, Volodymyr V.
name: Zou, Lei
name: Cai, Heng
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology

description: We analyzed the migration consideration factors of residents from the Mississippi River Delta in southern Louisiana, which is under the influence of rising sea levels, subsiding land, and increasing flood risks. Through the use of a telephone survey of 1,125 adult individuals in twenty-four parishes, we gathered the demographic data and flood risk experiences and perceptions of each respondent. The data were analyzed through descriptive statistics, means comparisons, and logistic regression to determine the factors with the highest influence on migration consideration. Results show that 21.5 percent of respondents considered moving, and they were mostly renters, were mostly younger, had experienced flooding before, and were less satisfied with their current living condition. Flood risk was found to be an important deciding factor, but it is not the most important one. Instead, economic opportunities have a greater effect on respondents’ desire to move or stay. The findings provide useful information and insights into the planning and management of a flood-prone region and whether managed retreat or other mitigation measures would be effective.
Growth in Total Factor Productivity in the Egyptian Agriculture Sector: Growth Accounting and Econometric Assessments of Sources of Growth
Creators: name: Dhehibi, Boubaker
name: El-Shahat, Ali Ahmed Ibrahim Ali
name: Frija, Aymen
name: Hassan, Aden-Aw
name: Dhehibi, Boubaker
name: El-Shahat, Ali Ahmed Ibrahim Ali
name: Frija, Aymen
name: Hassan, Aden-Aw
Publisher: name: Unknown
Year: 2016
Subjects: Agricultural and Food Policy

description: This research aims to assess the Total Factor Productivity (TFP) of the whole agricultural sector in Egypt for the period 1961-2012 using Törnqvist index calculations. Particularly, it aims to investigate: (1) the most important factors explaining the TFP growth in the Egyptian agriculture (2) estimating changes in technical efficiency and technical change and determining the magnitude of their contribution to the overall TFP growth, and lastly, (4) based on these findings, providing policy implication and recommendations that allows enhancing and sustaining future growth of agricultural production in Egypt. The currently analysis provided relevant results which might help us understanding the structural trend of the Egyptian agricultural sector, and understanding the most significant variables affecting this trend. Such results will have important policy implications for promoting further growth in the Egyptian agricultural sector. The empirical findings showed that rural development variables were found to significantly and negatively affect agricultural productivity. This demonstrates that agricultural activity is still a marginalized activity which is linked to low levels of income and is a source of employment for low productive labor. Moreover, a negative significant effect of the infrastructure variable on the productivity gains of the agricultural sector in Egypt was found which might indicates a form of low integration of farmers within large neighboring markets. These findings highlighted the decisions makers to take a deeper look at their rural infrastructure strategy, knowing that it may affect the productivity of the agricultural sector as whole.
Additional file 1 of Vaccine decision making in New Zealand: a discrete choice experiment
Creators: name: Chan, Amy Hai Yan
name: Tao, Marvin
name: Marsh, Samantha
name: Petousis-Harris, Helen
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 1
Electronic and vibrational signatures of ruthenium vacancies in Sr$_2$RuO$_4$ thin films
Creators: name: Kim, Gideok
name: Suyolcu, Y. Eren
name: Herrero-Martin, J.
name: Putzky, D.
name: Nair, H. P.
name: Ruf, J. P.
name: Schreiber, N. J.
name: Dietl, C.
name: Christiani, G.
name: Logvenov, G.
name: Minola, M.
name: van Aken, P. A.
name: Shen, K. M.
name: Schlom, D. G.
name: Keimer, B.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The synthesis of stoichiometric Sr$_2$RuO$_4$ thin films has been a challenge because of the high volatility of ruthenium oxide precursors, which gives rise to ruthenium vacancies in the films. Ru vacancies greatly affect the transport properties and electronic phase behavior of Sr$_2$RuO$_4$, but their direct detection is difficult due to their atomic dimensions and low concentration. We applied polarized X-ray absorption spectroscopy at the oxygen K-edge and confocal Raman spectroscopy to Sr$_2$RuO$_4$ thin films synthesized under different conditions. The results show that these methods can serve as sensitive probes of the electronic and vibrational properties of Ru vacancies, respectively. The intensities of the vacancy-related spectroscopic features extracted from these measurements are well correlated with the transport properties of the films. The methodology introduced here can thus help to understand and control the stoichiometry and transport properties in films of Sr$_2$RuO$_4$ and other ruthenates.
Noncompactness of Fourier Convolution Operators on Banach Function Spaces
Creators: name: Fernandes, Cláudio A.
name: Karlovich, Alexei Yu.
name: Karlovich, Yuri I.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: Let $X(\mathbb{R})$ be a separable Banach function space such that the Hardy-Littlewood maximal operator $M$ is bounded on $X(\mathbb{R})$ and on its associate space $X'(\mathbb{R})$. Suppose $a$ is a Fourier multiplier on the space $X(\mathbb{R})$. We show that the Fourier convolution operator $W^0(a)$ with symbol $a$ is compact on the space $X(\mathbb{R})$ if and only if $a=0$. This result implies that nontrivial Fourier convolution operators on Lebesgue spaces with Muckenhoupt weights are never compact.
description: To appear in Annals of Functional Analysis
Some Evidences on Effect of Intake Aguamiel (Agave sap)
Creators: name: Carrillo-López, A.
name: Silos-Espino, H.
name: Flores-Benitez, S.
name: Espinoza-Sánchez, E. A.
name: Ornelas-Tavares, J. R.
name: Flores-Chávez, L.
name: Tovar-Robles, C.
name: Méndez-Gallegos, J.
name: Rossel-Kipping, D.
name: Carrillo-López, A.
name: Silos-Espino, H.
name: Flores-Benitez, S.
name: Espinoza-Sánchez, E. A.
name: Ornelas-Tavares, J. R.
name: Flores-Chávez, L.
name: Tovar-Robles, C.
name: Méndez-Gallegos, J.
name: Rossel-Kipping, D.
Publisher: name: Unknown
Year: 2016
Subjects: Food Consumption/Nutrition/Food Safety

description: Honeywater or aguamiel (Agave sap) has been consumed by Mexican population since pre-columbian times. Although, it has been claimed by folk belief that aguamiel possesses some medicinal properties, scientific studies on its effect on human health have not been well documented. The behavior of blood components in nine volunteers (two young males, three adult females and four adult males) after aguamiel consumption (250 mL every three days during a period of 35 days) was analyzed. It was found that, serum red blood cell count, serum white blood cell count, platelet count, minerals (Zn, Mg and Fe) and iron-related proteins (ferritin and transferrin) levels were not negatively affected because of all of these blood indicators ranged within normal reference values. However, this study showed that aguamiel presented a specific functional effect since hypercholesterolemic adult males showed normal levels of serum total cholesterol after aguamiel consumption, whereas total cholesterol levels were kept in normal ranges after aguamiel consumption for normocholesterolemic subjects. Furthermore, aguamiel consumption did not cause hyperglycemia in any of the tested groups.
MOESM1 of Making decisions about antipsychotics: a qualitative study of patient experience and the development of a decision aid
Creators: name: S. Kaar
name: C. Gobjila
name: E. Butler
name: C. Henderson
name: O. Howes
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Science Policy

description: Additional file 1. Topic Guide: Anti-psychotic decision aid project: focus group topics of conversation and example of think aloud feedback.
First-principles studies of kinetics in epitaxial growth of III-V semiconductors
Creators: name: Kratzer, P.
name: Penev, E.
name: Scheffler, M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate how first-principles calculations using density-functional theory (DFT) can be applied to gain insight into the molecular processes that rule the physics of materials processing. Specifically, we study the molecular beam epitaxy (MBE) of arsenic compound semiconductors. For homoepitaxy of GaAs on GaAs(001), a growth model is presented that builds on results of DFT calculations for molecular processes on the beta2-reconstructed GaAs(001) surface, including adsorption, desorption, surface diffusion and nucleation. Kinetic Monte Carlo simulations on the basis of the calculated energetics enable us to model MBE growth of GaAs from beams of Ga and As_2 in atomistic detail. The simulations show that island nucleation is controlled by the reaction of As_2 molecules with Ga adatoms on the surface. The analysis reveals that the scaling laws of standard nucleation theory for the island density as a function of growth temperature are not applicable to GaAs epitaxy. We also discuss heteroepitaxy of InAs on GaAs(001), and report first-principles DFT calculations for In diffusion on the strained GaAs substrate. In particular we address the effect of heteroepitaxial strain on the growth kinetics of coherently strained InAs islands. The strain field around an island is found to cause a slowing-down of material transport from the substrate towards the island and thus helps to achieve more homogeneous island sizes.
description: 12 pages, 7 figures, REVTeX, Final version to appear in Appl. Phys. A (2002). Other related publications can be found at http://www.fhi-berlin.mpg.de/th/paper.html
MOESM1 of Enhancing community preparedness: an inventory and analysis of disaster citizen science activities
Creators: name: Ramya Chari
name: Sayers, Elizabeth Petrun
name: Sohaela Amiri
name: Leinhos, Mary
name: Kotzias, Virginia
name: Madrigano, Jaime
name: Thomas, Erin
name: Carbone, Eric
name: Uscher-Pines, Lori
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Science Policy

description: Additional file 1: Table S1. Citizen science databases or websites used to identify disaster-related activities.
Knowledge and Innovations for Farmers from Teaching Agriculture in Ugandan Primary Schools: A Study of Kumi Communities in the Teso Sub-Region
Creators: name: Epeju, William Faustine
name: Epeju, William Faustine
Publisher: name: Unknown
Year: 2016
Subjects: Teaching/Communication/Extension/Profession

description: Kumi communities consist of Bukedea, Kumi and Ngora districts whose agriculture is increasingly complex with declining productivity because of population increase, climate change, low yielding technologies used & poor market access impacting negatively on yields and environment. More knowledge & innovations are needed by farmers. Teaching agriculture in primary schools raised hopes, hence the study. The design was exploratory. In-depth interviews, focus group discussions, questionnaires, documents and observations were used to collect data from 40 primary schools randomly selected. Of 2,069 respondents, 1,951 were head teachers, teachers and primary seven students & 118 were farmers including extension workers purposively selected. Qualitative data were analysed using open coding & axial coding based on objectives and research questions. Agricultural productivity and its growth rate were found low caused by many factors. Education quality and innovations attained by farmers were not assuring for successful farming and rural living. Primary school agriculture was poorly conducted encountering implementation problems such as limited land, no funds, unfavourable weather and lack of improved inputs. Forty five percent (45%) of the students preferred farming as an occupation. The key innovations attained were literacy and numeracy important in the use of improved inputs; knowledge and skills for several farm operations including environmental management and good family living. On ranking school completion rates and farm output of 16 sub-counties, Spearman Rank Order coefficient computed was positive (r = 0.421 with r2 = 0.1772, 18% at 0.05 α). Increased farm output was explained by 18% through completed primary education by farmers. Smallholder farms in Kumi for years may only be run commercially through intelligent and differentiated policies, addressing market access, jobs in non-farm economy and social transfers to improve welfare of the poor. Primary school agriculture through innovations attained by farmers enhances production thus the need for more investment in it.
Recurrence, dimensions and Lyapunov exponents
Creators: name: Saussol, B.
name: Troubetzkoy, S.
name: Vaienti, S.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37B20

description: We show that the Poincaré return time of a typical cylinder is at least its length. For one dimensional maps we express the Lyapunov exponent and dimension via return times.
description: 12 pages
Beyond $Λ$CDM with HI intensity mapping: robustness of cosmological constraints in the presence of astrophysics
Creators: name: Camera, Stefano
name: Padmanabhan, Hamsa
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Mapping the unresolved intensity of the 21-cm emission of neutral hydrogen (HI) is now regarded as one the most promising tools for cosmological investigation in the coming decades. Here, we investigate, for the first time, extensions of the standard cosmological model, such as modified gravity and primordial non-Gaussianity, taking self-consistently into account the present constraints on the astrophysics of HI clustering in the treatment of the brightness temperature fluctuations. To understand the boundaries within which results thus obtained can be considered reliable, we examine the robustness of cosmological parameter estimation performed via studies of 21-cm intensity mapping, against our knowledge of the astrophysical processes leading to HI clustering. Modelling of astrophysical effects affects cosmological observables through the relation linking the overall HI mass in a bound object, to the mass of the underlying dark matter halo that hosts it. We quantify the biases in estimates of standard cosmological parameters and those describing modified gravity and primordial non-Gaussianity, that are obtained if one misconceives the slope of the relation between HI mass and halo mass, or the lower virial velocity cut-off for a dark matter halo to be able to host HI. Remarkably, we find that astrophysical uncertainties will not affect searches for primordial non-Gaussianity - one of the strongest science cases for HI intensity mapping - despite the signal being deeply linked to the HI bias.
description: 14 pages, 8 figures, 2 tables; v4: corrected a typo in the abstract (both arXiv metadata and .pdf file)
Clipped Cowpea (Vigna unguiculata (L.) Walp) Fodder Utilization: A Potential for Income Growths of Resource Poor Farmers in the Savannah Regions of Nigeria
Creators: name: Sambo, Banake E.
name: Odion, Ehiabhi C.
name: Sambo, Banake E.
name: Odion, Ehiabhi C.
Publisher: name: Unknown
Year: 2016
Subjects: Crop Production/Industries
Food Consumption/Nutrition/Food Safety

description: Cowpea features prominently in the farming systems of the semi-arid tropics where they are grown for fodder used as feed for livestock. Traditional farm varieties are the indeterminate, spreading type which grow fast; cover the soil surface and produce large quantities of biomass. Studies have focused on the use of such green crop materials for soil fertility improvement. But, it’s been highlighted that a green manure crop should also be a cover crop of economic value. Such crops should raise the farmers’ income not only indirectly by improving soil fertility but also directly by yielding products of economic importance such as food and fodder. In addition, trading in these residues (fodder/ haulms) can be highly remunerating. It is against this background that this study was carried out at the Institute for Agricultural Research, Ahmadu Bello University, Samaru, Zaria, Nigeria; During the 2002-2005 wet seasons; to determining the influence of intra-row spacing, clipping height and time on the productivity and income growth potential of the dual purpose cowpea (Vigna unguiculata (L.) Walp). The experimental lay out was a Randomized Complete Block Design (RCBD); replicated three times. The data was analyzed statistically using the analysis of variance test (ANOVA); and the means compared using the Duncan Multiple Range Test (DMRT). Results showed that, clipping management, facilitated the production of large (15 t ha-1) amounts of green plant biomass on-farm. This could be put to various uses by the resource poor farmer who usually is cash strapped at the peak of the farming (dry) season. The farmer could choose to keep and use the fodder to feed animals, and/ or trade it off and use the proceeds (N 41, 000.00 - N46, 000.00 - Nigerian Naira equivalent) to subsidize on fertilizer requirement and/ or meet up with immediate socio-economic family demands. Additionally, considering the high amount (187 kg-1) of N-added to the soil (i.e. about 4 bags of Urea fertilizer), a cost saving of about N 24, 000.00 was made by the resource poor farmer; which could have otherwise been invested into the procurement of N-fertilizer input. It is concluded that such pro-poor income growths originating from the adoption of such innovative clipping management technological farming practices as this, needs to be encouraged and supported; as this hold immense potential of increasing the income of resource poor, low income, and low technology farmers. Indeed, it is a veritable tool for the reduction of food insecurity and poverty viz. economic empowerment in the region.
Additional file 1 of Exposure to earthquakes and development of ischemic heart disease
Creators: name: Han, Changwoo
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Supplementary Material 1
Nutrient Dynamics in Wetland Organic Vegetable Production Systems in Eastern Zambia
Creators: name: Mafongoya, P. L.
name: Jiri, O.
name: Mafongoya, P. L.
name: Jiri, O.
Publisher: name: Unknown
Year: 2016
Subjects: Crop Production/Industries

description: The aim of this study was to determine effects of organic inputs on vegetable crops and on a subsequent maize crop grown in wetlands. The following treatments were applied to cabbage (Brassica oleracea) and onion (Allium cepa) crops: Gliricidia sepium (Gliricidia) biomass (8 t ha-1), Gliricidia biomass (12 t ha-1), cattle manure (10 t ha-1) with half recommended fertilizer rate, and recommended fertilizer rate (800 kg ha-1 basal dressing and 250 kg ha-1 top dressing fertilizer). The residual effect of the treatments was tested on a subsequent maize crop. The soil at the sites had low organic matter content (average 2%) and it was acidic (average pH 4.4). Soil inorganic N increased significantly from 11 mg kg-1 in the unfertilized crop to 22 mg kg-1 in the Gliricidia treatments after cabbage, and from 10.3 mg kg-1 to 37.2 mg kg-1 after the onion crop. There were significant differences (P<0.05) in onion and cabbage yields and in subsequent maize yield in both cabbage and onion plots. This study concluded that the application of high quality Gliricidia prunings lead to rapid release of N and higher vegetable yields. However, there is a high amount of residual N that can be leached.
Go with the Winners: a General Monte Carlo Strategy
Creators: name: Grassberger, P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We describe a general strategy for sampling configurations from a given distribution, NOT based on the standard Metropolis (Markov chain) strategy. It uses the fact that nontrivial problems in statistical physics are high dimensional and often close to Markovian. Therefore, configurations are built up in many, usually biased, steps. Due to the bias, each configuration carries its weight which changes at every step. If the bias is close to optimal, all weights are similar and importance sampling is perfect. If not, ``population control" is applied by cloning/killing partial configurations with too high/low weight. This is done such that the final (weighted) distribution is unbiased. We apply this method (which is also closely related to diffusion type quantum Monte Carlo) to several problems of polymer statistics, reaction-diffusion models, sequence alignment, and percolation.
description: To appear in Computer Phys. Commun
Local description of the Aharonov-Bohm effect with a quantum electromagnetic field
Creators: name: Saldanha, Pablo L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the seminal works from Santos and Gozalo [Europhys. Lett. $\mathbf{45}$, 418 (1999)] and Marletto and Vedral [Phys. Rev. Lett. $\mathbf{125}$, 040401 (2020)], it is shown how the Aharonov-Bohm effect can be described as the result of an exchange of virtual photons between the solenoid and the quantum charged particle along its propagation through the interferometer, where both the particle and the solenoid interact locally with the quantum electromagnetic field. This interaction results in a local and gauge-independent phase generation for the particle propagation in each path of the interferometer. Here we improve the cited treatments by using the quantum electrodynamics formalism in the Lorentz gauge, with a manifestly gauge-independent Hamiltonian for the interaction and the presence of virtual longitudinal photons. Only with this more complete and gauge-independent treatment it is possible to justify the acquired phases for interferometers with arbitrary geometries, and this is an advantage of our treatment. We also extend the results to the electric version of the Aharonov-Bohm effect. Finally, we propose an experiment that could test the locality of the Aharonov-Bohm phase generation.
description: 6 pages, 3 figures. v4: Minor changes in the text
How to derive and parameterize effective potentials in colloid-polymer mixtures
Creators: name: Bolhuis, P. G.
name: Louis, A. A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Polymer chains in colloid-polymer mixtures can be coarse-grained by replacing them with single soft particles interacting via effective polymer-polymer and polymer-colloid pair potentials. Here we describe in detail how Ornstein-Zernike inversion techniques, originally developed for atomic and molecular fluids, can be generalized to complex fluids and used to derive effective potentials from computer simulations on a microscopic level. In particular, we consider polymer solutions for which we derive effective potentials between the centers of mass, and also between mid-points or end-points from simulations of self-avoiding walk polymers. In addition, we derive effective potentials for polymers near a hard wall or a hard sphere. We emphasize the importance of including both structural and thermodynamic information (through sum-rules) from the underlying simulations. In addition we develop a simple numerical scheme to optimize the parameterization of the density dependent polymer-polymer, polymer-wall and polymer-sphere potentials for dilute and semi-dilute polymer densities, thus opening up the possibility of performing large-scale simulations of colloid-polymer mixtures. The methods developed here should be applicable to a much wider range effective potentials in complex fluids.
description: uses revtex4.cls; submitted for archival purposes
SU$_M$(2)$\times$U$_C$(1) Gauge Symmetry in High $T_c$ Superconductivity
Creators: name: Zhang, Wei-Min
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The square lattice structure of $CuO_2$ layers and the strongly correlated property of electrons indicate that the high $T_c$ superconductivity in cuprates can be described by a SO$_M$(5) coherent pairing state in which a SU$_M$(2)$\times$U$_C$(1) gauge symmetry is embedded. The spin and charge fluctuations that characterize the low energy magnetic excitations in cuprates are controlled by this intrinsic SU$_M$(2)$\times$U$_C$(1) gauge symmetry.
description: 4 pages Revtex file
Localization transition in the Discrete Non-Linear Schrödinger Equation: ensembles inequivalence and negative temperatures
Creators: name: Gradenigo, Giacomo
name: Iubini, Stefano
name: Livi, Roberto
name: Majumdar, Satya N.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a detailed account of a first-order localization transition in the Discrete Nonlinear Schrödinger Equation, where the localized phase is associated to the high energy region in parameter space. We show that, due to ensemble inequivalence, this phase is thermodynamically stable only in the microcanonical ensemble. In particular, we obtain an explicit expression of the microcanonical entropy close to the transition line, located at infinite temperature. This task is accomplished making use of large-deviation techniques, that allow us to compute, in the limit of large system size, also the subleading corrections to the microcanonical entropy. These subleading terms are crucial ingredients to account for the first-order mechanism of the transition, to compute its order parameter and to predict the existence of negative temperatures in the localized phase. All of these features can be viewed as signatures of a thermodynamic phase where the translational symmetry is broken spontaneously due to a condensation mechanism yielding energy fluctuations far away from equipartition: actually they prefer to participate in the formation of nonlinear localized excitations (breathers), typically containing a macroscopic fraction of the total energy.
description: 17 pages, 5 figures
Cooling of Neutron Stars: Two Types of Triplet Neutron Pairing
Creators: name: Gusakov, M. E.
name: Gnedin, O. Y.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider cooling of neutron stars (NSs) with superfluid cores composed of neutrons, protons, and electrons (assuming singlet-state pairing of protons, and triplet-state pairing of neutrons). We mainly focus on (nonstandard) triplet-state pairing of neutrons with the $|m_J| = 2$ projection of the total angular momentum of Cooper pairs onto quantization axis. The specific feature of this pairing is that it leads to a power-law (nonexponential) reduction of the emissivity of the main neutrino processes by neutron superfluidity. For a wide range of neutron critical temperatures $T_{cn}$, the cooling of NSs with the $|m_J| = 2$ superfluidity is either the same as the cooling with the $m_J = 0$ superfluidity, considered in the majority of papers, or much faster. The cooling of NSs with density dependent critical temperatures $T_{cn}(ρ)$ and $T_{cp}(ρ)$ can be imitated by the cooling of the NSs with some effective critical temperatures $T_{cn}$ and $T_{cp}$ constant over NS cores. The hypothesis of strong neutron superfluidity with $|m_J| = 2$ is inconsistent with current observations of thermal emission from NSs, but the hypothesis of weak neutron superfluidity of any type does not contradict to observations.
description: 10 pages, 6 figures
Entrepreneurship on the Farm: Kentucky Grower Perceptions of Benefits and Barriers
Creators: name: Camenisch, Amy
name: Bastin, Sandra
name: Hege, Amanda
name: Camenisch, Amy
name: Bastin, Sandra
name: Hege, Amanda
Publisher: name: Unknown
Year: 2016
Subjects: Farm Management

description: The popularity of buying local and the resurgence of farmers markets has increased the need for farmer product diversification. In Kentucky, legislation was passed to allow farmers to produce value-added horticulture products from their homes. Following specific food-safe guidelines, homebased processors (HBP) and microprocessors (HBM) could sell pre-determined value-added products at their local farmers markets. This study administered an online survey to HBP and HBM participants in order to achieve the following objectives: 1) Determine the perceived success of farmer produced value-added food products, 2) Identify which support programs farmers are aware of or use, 3) Discover the primary perceived barriers to developing value-added food products, and 4) Ascertain what factors influence the development of a value-added food product business. Participants felt their value-added products were successful but many felt they struggled to bring their products to market. The primary barriers to developing value-added products were lack of time, funding, and legal knowledge. The primary barriers to using pre-existing program resources were not having enough time, being unaware of the services offered, and programs being held in locations too far away from their farm. The information gathered by this study can be used to determine the addressable farmer needs in product diversification. It can also assist programs in making their services more available and applicable to farm entrepreneurs.
Additional file 1 of Effect of a multimodal training on the ability of medical students to administer the MMSE: a comparative study
Creators: name: Roca, Frédéric
name: Lepiller, Lucie
name: Keroulle, Camille
name: Lesage, Doriane
name: Rougette, Kevin
name: Chassagne, Philippe
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Supplementary Material 1
MOESM7 of Diversification and genetic structure of the western-to-eastern progression of European Phaseolus vulgaris L. germplasm
Creators: name: Pipan, Barbara
name: Meglič, Vladimir
Publisher: name: figshare
Year: 2019
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 7: Table S4. Loci without statistically significant deviations from HWE (p > 0.05).
Photoassociation spectroscopy of cold calcium atoms
Creators: name: Degenhardt, C.
name: Binnewies, T.
name: Wilpers, G.
name: Sterr, U.
name: Riehle, F.
name: Lisdat, C.
name: Tiemann, E.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Photoassociation spectroscopy experiments on 40Ca atoms close to the dissociation limit 4s4s 1S0 - 4s4p 1P1 are presented. The vibronic spectrum was measured for detunings of the photoassociation laser ranging from 0.6 GHz to 68 GHz with respect to the atomic resonance. In contrast to previous measurements the rotational splitting of the vibrational lines was fully resolved. Full quantum mechanical numerical simulations of the photoassociation spectrum were performed which allowed us to put constraints on the possible range of the calcium scattering length to between 50 a_0 and 300 a_0.
MOESM6 of Diversification and genetic structure of the western-to-eastern progression of European Phaseolus vulgaris L. germplasm
Creators: name: Pipan, Barbara
name: MegliÄ, Vladimir
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Computational Biology

description: Additional file 6: Table S3. Analysis of molecular variance considering the gene-bank origins of the accessions.
Gérer la temporalité d'une donnée scientifique et de ses traitements
Creators: name: Julien, Barde
name: Wilfried, Heintz
Publisher: name: Zenodo
Year: 2022
Subjects: Open science
Open access
Open data
Reproducibility
Open source
Temporality
Data science

description: La notion du temps est cruciale dans le processus d’acquisition des données scientifiques. Qu’elles soient de nature expérimentale, basées sur des observations ou issues de capteurs, la dimension temporelle des données est le principal facteur de non reproductibilité.
 Les traitements informatiques appliqués aux données sont eux-mêmes caractérisés par la version d’un logiciel ou d’un environnement informatique. Dès lors, comment gérer cette dimension spatiale dans un processus d’ouverture et de partage des données de la science ?
 Nous vous proposons d’étudier cette question au travers d’exemples concrets en évaluant l’apport d’outils tels que les notebooks.
MOESM1 of Molecular profiling of rheumatoid arthritis patients reveals an association between innate and adaptive cell populations and response to anti-tumor necrosis factor
Creators: name: Farutin, Victor
name: ProdâHomme, Thomas
name: McConnell, Kevin
name: Washburn, Nathaniel
name: Halvey, Patrick
name: Etzel, Carol
name: Guess, Jamey
name: Duffner, Jay
name: Getchell, Kristen
name: Meccariello, Robin
name: Gutierrez, Bryan
name: Honan, Christopher
name: Ganlin Zhao
name: Cilfone, Nicholas
name: Gunay, Nur
name: Hillson, Jan
name: DeLuca, David
name: Saunders, Katherine
name: Pappas, Dimitrios
name: Greenberg, Jeffrey
name: Kremer, Joel
name: Manning, Anthony
name: Ling, Leona
name: Ishan Capila
Publisher: name: figshare
Year: 2019
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Cancer

description: Additional file 1: Supplementary methods; Tables S1, S2, S7-S13; Figures S1-S7.
Stellar chromospheric activity and age relation from open clusters in the LAMOST Survey
Creators: name: Zhang, Jiajun
name: Zhao, Jingkun
name: Oswalt, Terry D.
name: Fang, Xiangsong
name: Zhao, Gang
name: Liang, Xilong
name: Ye, Xianhao
name: Zhong, Jing
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We identify member stars of more than 90 open clusters in the LAMOST survey. With the method of Fang et al.(2018), the chromospheric activity (CA) indices logR'CaK for 1091 member stars in 82 open clusters and logR'Hα for 1118 member stars in 83 open clusters are calculated. The relations between the average logR'CaK, logR'Hα in each open cluster and its age are investigated in different Teff and [Fe/H] ranges. We find that CA starts to decrease slowly from logt = 6.70 to logt = 8.50, and then decreases rapidly until logt = 9.53. The trend becomes clearer for cooler stars. The quadratic functions between logR' and logt with 4000K < Teff < 5500K are constructed, which can be used to roughly estimate ages of field stars with accuracy about 40% for logR'CaK and 60% for logR'Hα.
Axisymmetric pulse recycling and motion in bulk semiconductors
Creators: name: Bonilla, L. L.
name: Escobedo, R.
name: Higuera, F. J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Kroemer model for the Gunn effect in a circular geometry (Corbino disks) has been numerically solved. The results have been interpreted by means of asymptotic calculations. Above a certain onset dc voltage bias, axisymmetric pulses of the electric field are periodically shed by an inner circular cathode. These pulses decay as they move towards the outer anode, which they may not reach. As a pulse advances, the external current increases continuously until a new pulse is generated. Then the current abruptly decreases, in agreement with existing experimental results. Depending on the bias, more complex patterns with multiple pulse shedding are possible.
description: 8 pages, 15 figures
Solving the Triangular Ising Antiferromagnet by Simple Mean Field
Creators: name: Galam, Serge
name: Koseleff, Pierre-Vincent
Publisher: name: arXiv
Year: 2002
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Few years ago, application of the mean field Bethe scheme on a given system was shown to produce a systematic change of the system intrinsic symmetry. For instance, once applied on a ferromagnet, individual spins are no more equivalent. Accordingly a new loopwise mean field theory was designed to both go beyond the one site Weiss approach and yet preserve the initial Hamitonian symmetry. This loopwise scheme is applied here to solve the Triangular Antiferromagnetic Ising model. It is found to yield Wannier's exact result of no ordering at non-zero temperature. No adjustable parameter is used. Simultaneously a non-zero critical temperature is obtained for the Triangular Ising Ferromagnet. This simple mean field scheme opens a new way to tackle random systems.
description: 14 pages, 2 figures
Hamiltonian derivation of dual gravitational charges
Creators: name: Godazgar, Hadi
name: Godazgar, Mahdi
name: Perry, Malcolm J.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Regular Article - Theoretical Physics
Black Holes in String Theory
Classical Theories of Gravity
Space-Time Symmetries

description: Abstract: We provide a Hamiltonian derivation of recently discovered dual BMS charges. In order to do so, we work in the first order formalism and add to the usual Palatini action, the Holst term, which does not contribute to the equations of motion. We give a method for finding the leading order integrable dual charges à la Wald-Zoupas and construct the corresponding charge algebra. We argue that in the presence of fermions, the relevant term that leads to dual charges is the topological Nieh-Yan term.