cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optimized Designs for Telecom-Wavelength Quantum Light Sources Based on Hybrid Circular Bragg Gratings
Creators: name: Rickert, Lucas
name: Kupko, Timm
name: Rodt, Sven
name: Reitzenstein, Stephan
name: Heindel, Tobias
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a design study of quantum light sources based on hybrid circular Bragg Gratings (CBGs) for emission wavelengths in the telecom O-band. The evaluated CBG designs show photon extraction efficiencies > 95% and Purcell factors close to 30. Using simulations based on the finite element method, and considering the influence of possible fabrication imperfections, we identify optimized high-performance CBG designs which are robust against structural aberrations. In particular, full 3D simulations reveal that the designs show robustness regarding deviations of the emitter position in the device well within reported positioning accuracies of deterministic fabrication technologies. Furthermore, we investigate the coupling of the evaluated hybrid CBG designs to single-mode optical fibers, which is particularly interesting for the development of practical quantum light sources. We obtain coupling efficiencies of up to 77% for off-the-shelf fibers, and again proof robustness against fabrication imperfections. Our results show prospects for the fabrication of close-to-ideal fiber-coupled quantum light sources for long distance quantum communication.
description: 13 pages, 8 figures, including Supplemental Material, added additional simulations in full 3D setting accounting for finite displacement of dipole emitter
MOESM1 of Teen Mental Health First Aid for years 7â€“9: a description of the program and an initial evaluation
Creators: name: Hart, Laura
name: Bond, Kathy
name: Morgan, Amy
name: Alyssia Rossetto
name: Fairlie Cottrill
name: Kelly, Claire
name: Jorm, Anthony
Publisher: name: figshare
Year: 2019
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: Computational Biology

description: Additional file 1. Sociodemographic characteristics of the schools.
Electron-electron interaction at decreasing $k_Fl$
Creators: name: Minkov, G. M.
name: Rut, O. E.
name: Germanenko, A. V.
name: Sherstobitov, A. A.
name: Shashkin, V. I.
name: Khrykin, O. I.
name: Zvonkov, B. N.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The contribution of the electron-electron interaction to conductivity is analyzed step by step in gated GaAs/InGaAs/GaAs heterostructures with different starting disorder. We demonstrate that the diffusion theory works down to $k_F l\simeq 1.5-2$, where $k_F$ is the Fermi quasimomentum, $l$ is the mean free paths. It is shown that the e-e interaction gives smaller contribution to the conductivity than the interference independent of the starting disorder and its role rapidly decreases with $k_Fl$ decrease.
description: 5 pages, 6 figures
High-order harmonics as induced by a quantized field:a phase-space picture
Creators: name: Gombkötő, Ákos
name: Varró, Sándor
name: Mati, Péter
name: Földi, Péter
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The interaction of matter with a quantized electromagnetic mode is considered. Representing a strong exciting field, the mode is assumed to contain a large number of photons. As a result, the material response is highly nonlinear: the completely quantized description results in generation of high harmonics. In order to understand the essence of the physical processes that are involved, we consider a finite dimensional model for the material system. Using an appropriate description in phase space, this approach leads to a transparent picture showing that the interaction splits the initial, exciting coherent state into parts, and the rapid change of the populations of these parts (that are coherent states themselves) results in the generation of high-order harmonics as secondary radiation. The method we use is an application of the discrete lattice of coherent states that was introduced by J. von Neumann.
description: 10 pages, 4 figures
Polarized Structure Functions in QCD
Creators: name: Kodaira, J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We review the nucleon's polarized structure functions from the viewpoint of gauge invariant, nonlocal light-cone operators in QCD. We discuss a systematic treatment of the polarized structure functions and the corresponding parton distribution functions. We also address a question of what information on the structure of Nature will be obtained from the future polarized experiments. From this point of view, we will discuss the W gamma production at RHIC polarized experiment.
description: 8 pages, 5 Postscript figures, Invited talk presented at the Workshop on Lepton Scattering, Hadrons and QCD, Adelaide, March 26 -- April 6, 2001
Relative phase between the three-gluon and one-photon amplitudes of the J/psi decays
Creators: name: Achasov, N. N.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: It is shown that the study of the ω-ρinterference pattern in the J/psi -> (rho+omega)eta -> pi+pi-eta decay provides evidence for the large (nearly 90 degrees) relative phase between the isovector one-photon and three-gluon decay amplitudes.
description: Parallel session talk at HADRON 2001, Protvino, Russia, August 30, 4 pages, revtex, tightlines
title: Assessing the progress of local government greenhouse gas emissions reduction targets on Vancouver Island
Creators: name: Fletcher, Celina
Publisher: name: Electronic version published by Vancouver Island University
Year: 2021
Subjects: subject: Greenhouse gas mitigation--British Columbia--Vancouver Island
subject: Environmental protection--Planning
subject: Municipal government--British Columbia--Vancouver Island

description: Local governments play an important role in greenhouse gas reductions through land use planning. As a response to growing climate change concerns, the Province of British Columbia has taken several steps to foster the implementation of climate change mitigation policies and actions at the local government level. Through the Green Communities Act, local governments are required to establish greenhouse gas reduction targets. This research examines the progress of a set of local governments in British Columbia towards their greenhouse gas reduction targets through the actions and policies created in response to climate change. This research discusses key planning tools and actions that enhance climate mitigation efforts, as well as the barriers to implementation. The findings from this research inform recommendations to build on planning efforts towards greenhouse gas emissions reductions.
High-temperature expansion of the grand thermodynamic potential for scalar particles in crossed electromagnetic fields
Creators: name: Kazinski, P. O.
name: Kalinichenko, I. S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The problem of a scalar particle in a constant crossed electromagnetic field ($\mathbf{E}\perp\mathbf{H}$ and $|\mathbf{E}|=|\mathbf{H}|$) is examined. The high-temperature expansion of the grand thermodynamic potential and vacuum energy with account for non-perturbative corrections are derived. The contribution from particles and antiparticles is considered separately. It is shown that the non-perturbative corrections depend on boundary conditions but do not depend on fields.
description: 21 pages
Suicide Rates and Olympians: What Do We Know?
Creators: name: Wilson, Philip
name: Bonisteel, Emily
name: Mack, Diane
Publisher: name: The Health & Fitness Journal of Canada
Year: 2024

description: Background: Death by suicide is a global problem among the general population. Factors that contribute to the risk of death by suicide include age (chronological), sex (assigned at birth), and economic factors (high-income versus lower-income countries). Investigations of death by suicide focused on athletes remain sparse with limited attention devoted to athletes competing at elite levels of sport. Purpose: This paper describes results from a preliminary study of death by suicide reported between 1896 and 2023 for Olympic athletes. Methods: This study combined a non-experimental research design with archival data to address this question: What do we know about suicide rates and Olympians? Results: The mean age of death by suicide for Olympic athletes was 44.44 years (SD = 15.33 years). Death by suicide was more common in males and athletes representing high-income countries. The frequency of death by suicide between 1896 and 2023 was variable (Median = 2.00 suicides per year). Conclusions: Olympic athletes do not seem immune to dying by suicide.
description: The Health & Fitness Journal of Canada, Vol. 17 No. 1 (2024)
Consumers’ Online Deliberation about Food-Related Risks and Benefits: The Case of Red Meat
Creators: name: Verbeke, Wim
name: Rutsaert, Pieter
name: Barnett, Julie
name: Gaspar, Rui
name: Marcu, Afrodita
name: Pieniak, Zuzanna
name: Seibt, Beate
name: Fletcher, Dave
name: Lima, Luisa
name: Verbeke, Wim
name: Rutsaert, Pieter
name: Barnett, Julie
name: Gaspar, Rui
name: Marcu, Afrodita
name: Pieniak, Zuzanna
name: Seibt, Beate
name: Fletcher, Dave
name: Lima, Luisa
Publisher: name: Unknown
Year: 2014
Subjects: subject: Consumer/Household Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: Consumer
subject: Information seeking
subject: Online deliberation
subject: Red meat
subject: Risk-benefit communication

description: Successfully engaging consumers in a dialogue may provide opportunities for better tailored and more effective communication about food-related risks and benefits. Using an online deliberation concept and software, VIZZATATM, we explored the validity of a behavioural measure of deliberation in an online environment in the context of consumers’ perceptions and information seeking about the risks and benefits of red meat. Participants from Belgium, Portugal and the United Kingdom (n=150) participated in an asynchronous interaction with the research team about the information provided. Online deliberation was operationalized as an individual metric based on the number of questions asked in relation to the information, the number of comments left, the number of glossary terms accessed, and the time spent on deliberative activity. This operationalization provided a coherent measure of deliberation which was positively correlated with information recall about the risks and benefits of red meat. Participants who perceived the information about red meat risks and benefits as too complex engaged less with the information.
description: An extended version of this paper is published in Food Quality and Preference by Rutsaert et al., entitled “Beyond information seeking: Consumers’ online deliberation about the risks and benefits of red meat”, doi: http://dx.doi.org/10.1016/j.foodqual.2014.07.011
Lorentz Transformations from Reflections:Some Applications
Creators: name: Urbantke, H. K.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 83A05

description: We point out, by exhibiting two examples and mentioning a third one, that it is sometimes useful to consider Lorentz transformations as generated from hyperplane or line reflections. One example concerns the construction of boosts linking two given 4-vectors, the other one concerns the Minkowski geometric understanding of V. Moretti's polar decomposition of orthochronous Lorentz matrices.
Phonons Softening in Tip-Stretched Monatomic Nanowires
Creators: name: Picaud, F.
name: Corso, A. Dal
name: Tosatti, E.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It has been shown in recent experiments that electronic transport through a gold monatomic nanowire is dissipative above a threshold voltage due to excitation of phonons via the electron-phonon interaction. We address that data by computing, via density functional theory, the zone boundary longitudinal phonon frequency of a perfect monatomic nanowire during its mechanical elongation. The theoretical frequency that we find for an ideally strained nanowire is not compatible with experiment if a uniformly distributed stretch is assumed. With the help of a semi-empirical Au-Au potential, we model the realistic nanowire stretching as exerted by two tips. In this model we see that strain tends to concentrate in the junctions, so that the mean strain of the nanowire is roughly one half of the ideal value. With this reduced strain, the calculated phonon softening is in much better agreement with experiment.
description: 9 pages,3 figures, Surface Science, in press
MOESM1 of Intersectoral collaboration for people-centred mental health care in Timor-Leste: a mixed-methods study using qualitative and social network analysis
Creators: name: Hall, Teresa
name: Kakuma, Ritsuko
name: Palmer, Lisa
name: Minas, Harry
name: JoÃ£O Martins
name: Armstrong, Greg
Publisher: name: figshare
Year: 2019
Subjects: 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: Cancer

description: Additional file 1. Interview guides.
Bird Flu Resurgence: A Stark Warning for Future Pandemics
Creators: name: Prachi Chandrakar and Dr. Sahil Thakur
Publisher: name: Bio vet innovator magazine
Year: 2024

description: Commercial poultry farms are expanding rapidly with the integration of modern technology and advanced management practices. However, the lack of proper care, inadequate knowledge, neglect of vaccination, and indiscriminate use of antibiotics are contributing to the resurgence of several deadly diseases, including Avian influenza. Avian influenza, in particular, poses a significant zoonotic threat. Therefore, it is crucial to implement enhanced preventive measures to control and mitigate its spread.Keywords: Avian Influenza, Faeces, Migratory Birds, Pandemic, Poultry Farms
MOESM1 of Risk of early mortality and cardiovascular disease in type 1 diabetes: a comparison with type 2 diabetes, a nationwide study
Creators: name: Lee, You-Bin
name: Kyungdo Han
name: Bongsung Kim
name: Seung-Eun Lee
name: Jun, Ji
name: Jiyeon Ahn
name: Kim, Gyuri
name: Sang-Man Jin
name: Kim, Jae
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1: Table S1. Adjusted hazard ratios and 95% confidence intervals for the incidence of cardiovascular diseases and all-cause mortality during follow up according to the presence and type of diabetes in subgroups stratified by current smoking. Table S2. Adjusted hazard ratios and 95% confidence intervals for the incidence of cardiovascular diseases and all-cause mortality during follow up according to the presence and type of diabetes in subgroups stratified by regular exercise. Table S3. Subdistribution hazard ratios of cardiovascular disease according to the presence and type of diabetes, accounting for all-cause mortality as a competing event. Table S4. Hazard ratios and 95% confidence intervals for the incidence of cardiovascular disease and all-cause mortality during follow up according to the presence and type of diabetes mellitus, a subgroup analysis including only individuals without diabetes, and those with a diabetes duration of less than 5 years. Table S5. Hazard ratios and 95% confidence intervals for the incidence of cardiovascular disease and all-cause mortality during follow up according to the type of diabetes mellitus, stratified analyses by the age at diabetes onset in people with a diabetes duration of less than 5 years. Table S6. Hazard ratios and 95% confidence intervals for the incidence of cardiovascular disease and all-cause mortality during follow up according to the presence and type of diabetes mellitus, sensitivity analyses after excluding individuals who developed incident type 1 or type 2 diabetes during the follow-up period. Table S7. Hazard ratios and 95% confidence intervals for the incidence of cardiovascular disease and all-cause mortality during follow up according to the presence and type of diabetes mellitus, sensitivity analyses after excluding individuals in the group without diabetes who had ever received anti-diabetic medications or diagnostic codes for diabetes at or before baseline.
A test of the instanton vacuum with low-energy theorems of the axial anomaly
Creators: name: Musakhanov, M. M.
name: Kim, Hyun-Chul
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We revisit the QCD+QED axial anomaly low-energy theorems which give an exact relation between the matrix elements of the gluon and photon parts of the axial anomaly operator equation within the framework of the {\em effective action} derived from the instanton vacuum. The matrix elements between the vacuum and two photon states and between the vacuum and two gluon states are investigated for arbitrary $N_f $ in the chiral limit. Having gauged the effective action properly, we show that the model does exactly satisfy the low-energy theorems.
description: 9 pages, no figure, final version which will appear in Phys. Lett. B
Hidden Sector Supergravity Breakdown
Creators: name: Nilles, Hans Peter
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Gravity mediated supersymmetry breakdown originated from a study of gaugino condensation in a hidden sector. We review this mechanism of supergravity breakdown from the original formulation in the early eighties to its natural implementation in superstring theory and M-theory. In the latter case hidden and observable sector become separated geometrically and supersymmetry is broken dynamically on a hidden wall.
description: 14 pages, Latex, Invited talk presented at the symposium "Thirty Years of Supersymmetry", University of Minnesota, October 13-15, 2000
Additional file 1 of Rapid ethnographic assessment for potential anti-malarial mass drug administration in an outbreak area of Santo Domingo, Dominican Republic
Creators: name: Keys, Hunter
name: Ureña, Keyla
name: Reyes, Jhefres
name: Bardosh, Kevin
name: Pell, Christopher
name: Puello, Jose
name: Blount, Stephen
name: Noland, Gregory S.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Structured interview guide for participants
Analysis of nature of phi -> gamma pi0 eta and phi -> gamma pi0 pi0 decays
Creators: name: Achasov, N. N.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study interference patterns in the phi -> gamma a0 + pi0 rho -> gamma pi eta and phi -> gamma f0 + pi0 rho -> gamma pi0 pi0 reactions. Taking into account the interference, we fit the experimental data and show that the background reaction does not distort the pi0eta spectrum in the decay phi -> gamma pi eta everywhere over the energy region and does not distort the pi0 pi0 spectrum in the decay phi -> gamma pi0 pi0 when the invariant mass m_{pi0 pi0} > 670 MeV. We discuss the details of the scalar meson production in the radiative decays and note that there are conclusive arguments in favor of the one-loop mechanism phi -> K+K- -> gamma a0 (or gamma f0). We discuss also distinctions between the four-quark, molecular, and two-quark models and argue that the establishment of the scalar meson production mechanism in the phi radiative decays gives new strong evidence in favor of the four-quark nature of the scalar a0(980) and f0(980) mesons.
description: Plenary session talk at HADRON 2001, Protvino, August 27, 10 pages, revtex
Heterogeneities in electricity grids strongly enhance non-Gaussian features of frequency fluctuations under stochastic power input
Creators: name: Wolff, Matthias F.
name: Schmietendorf, Katrin
name: Lind, Pedro G.
name: Kamps, Oliver
name: Peinke, Joachim
name: Maass, Philipp
Publisher: name: arXiv
Year: 2019
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Stochastic feed-in of fluctuating renewable energies is steadily increasing in modern electricity grids and this becomes an important risk factor for maintaining power grid stability. Here we study the impact of wind power feed-in on the short-term frequency fluctuations in power grids based on an IEEE test grid structure, the swing equation for the dynamics of voltage phase angles, and a series of measured wind speed data. External control measures are accounted for by adjusting the grid state to the average power feed-in on a time scale of one minute. The wind power is injected at a single node by replacing one of the conventional generator nodes in the test grid by a wind farm. We determine histograms of local frequencies for a large number of one-minute wind speed sequences taken from the measured data and for different injection nodes. These histograms exhibit a common type of shape, which can be described by a Gaussian distribution for small frequencies and a nearly exponentially decaying tail part. Non-Gaussian features become particularly pronounced for wind power injection at locations, which are weakly connected to the main grid structure. This effect is only present when taking into account the heterogeneities in transmission line and node properties of the grid, while it disappears upon homogenizing of these features. The standard deviation of the frequency fluctuations increases linearly with the average injected wind power.
description: 9 pages, 7 figures
Flexural Fatigue Life of Woven Carbon/Vinyl Ester Composites under Sea Water Saturation
Creators: name: Prabhakar, Pavana
name: Garcia, Ricardo
name: Imam, Muhammad Ali
name: Damodaran, Vinay
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The adverse effects of sea water environment on the fatigue life of woven carbon fiber/vinyl ester composites are established at room temperature in view of long-term survivability of offshore structures. It is observed that the influence of sea water saturation on the fatigue life is more pronounced when the maximum cyclic displacement approaches maximum quasi-static deflection, that is, the reduction in the number of cycles to failure are comparable between dry and sea water saturated samples at lower strain ranges (~37% at 0.46% strain), but are drastically different at higher strain ranges (~90% at 0.62% strain). Key damage modes that manifest during the fatigue loading is also identified, and a non-linear model is established for predicting low cycle fatigue life of these composites in dry and sea water saturated conditions.
Implications of the Measurements of Ue3 to Theory
Creators: name: Tanimoto, M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The predictions of $U_{e3}$ are discussed. Typical models which lead to the large, the seizable and the tiny $U_{e3}$ are also studied.
description: 4 pages, Talk at the International Workshop NuFACT'01, Tsukuba, Japan (May 2001)
From plot to watershed management : Experience in farmer participatory Vertisol technology generation and adoption in highland Ethiopia.
Creators: name: Jabbar, Mohammad A.
name: Mamo, T
name: Mohamed Saleem, M A
name: Jabbar, Mohammad A.
name: Mamo, T
name: Mohamed Saleem, M A
Publisher: name: Unknown
Year: 2001
Subjects: subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Farm Management
subject: watershed
subject: vertisol
subject: management
subject: technology
subject: adoption
subject: Ethiopia

description: Vertisols are important underutilized resources in the East African highlands because of their inherent waterlogging problem. In this paper, group experience in the design, development and diffusion of a technology package through farmer participation for improving management and productivity of Vertisols is described. The results indicate that farmer knowledge, capacity and incentives are important considerations at every step in technology generation and diffusion. Results also indicate that technology adoption is not a one-off decision rather farmers move from acquisition of knowledge to adoption to continuous or discontinuous use. The set of factors influencing each decision may be also different. The experience also indicates that for effective use of technologies that are complex and may create externality, household level decisions are not adequate, rather involvement of the community in watershed or landscape management may be required. Participation of individual households in such collective action for common resource management is most likely to be influenced by the potential benefit to the participants. The experience of the project also indicates that introduction of component technologies and other interventions in a haphazard manner may not lead to sustained improvement in productivity and human welfare and maintenance of the ecosystem. An integrated and holistic approach incorporating biophysical, economic and social dimensions of any ecosystem is more appropriate for achieving those goals.
Study on Two Coupled Relativistic Superfluids with Spontaneous Symmetry Breaking
Creators: name: Zhang, Sun
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we have studied two coupled relativistic superfluids with spontaneous U(1) symmetry breaking, using Poisson bracket technique. After constructing the commutators between thermo-quantities and field quantities, the equations of motion are obtained. These equations describe the system in the frame of two-constituent superfluid theory and provide a clear picture relating the symmetry breaking and the physical quantities explicitly. The interference effect is discussed and the Josephson-type equation is also given. Furthermore, the dissipation effect and entropy production mechanism are presented and the dissipative coefficients are given explicitly in the first-order theory framework.
description: 12 pages
Agricultural intensification and efficiency in the West African savannas: evidence from northern Nigeria.
Creators: name: Okike, I.O.
name: Jabbar, Mohammad A.
name: Manyong, Victor M.
name: Smith, J.W.
name: Akinwumi, J.A.
name: Ehui, Simeon K.
name: Okike, I.O.
name: Jabbar, Mohammad A.
name: Manyong, Victor M.
name: Smith, J.W.
name: Akinwumi, J.A.
name: Ehui, Simeon K.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Farm Management
subject: Production Economics
subject: Productivity Analysis
subject: intensification
subject: efficiency
subject: farm
subject: savannah
subject: West Africa
subject: Nigeria

description: Agricultural intensification in West Africa is in its early stages and several hypotheses have been postulated about its evolution and possible pathways. In addition, farm efficiency may vary across farms and other socio-economic domains, opening opportunities to improve efficiency and productivity through reallocation of current resources and introducing new technologies that target farmers. A survey was conducted among 559 households in 8 villages, 4 each in the northern Guinea savannah (NGS) and Sudan savannah (SS) zones of northern Nigeria, each representing a combination of high or low population density and high or low market access, to test these hypotheses.
PBH in single field inflation: the effect of shape dispersion and non-Gaussianities
Creators: name: Atal, Vicente
name: Cid, Judith
name: Escrivà, Albert
name: Garriga, Jaume
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Primordial black holes (PBHs) may result from high peaks in a random field of cosmological perturbations. In single field inflationary models, such perturbations can be seeded as the inflaton overshoots a small barrier on its way down the potential. PBHs are then produced through two distinct mechanisms, during the radiation era. The first one is the familiar collapse of large adiabatic overdensities. The second one is the collapse induced by relic bubbles where the inflaton field is trapped in a false vacuum, due to large backward fluctuations which prevented horizon sized regions from overshooting the barrier. We consider (numerically and analytically) the effect of non-Gaussianities on the threshold for overdensities to collapse into a PBH. Since typical high peaks have some dispersion in their shape or profile, we also consider the effect of such dispersion on the corresponding threshold for collapse. With these results we estimate the most likely channel for PBH production as a function of the non-Gaussianity parameter $f_{\rm NL}$. We also compare the threshold for collapse coming from the perturbative versus the non perturbative template for the non-Gaussianity arising in this model. We show that i) for $f_{\rm NL}\gtrsim 3.5$, the population of PBH coming from false vacuum regions dominates over that which comes from the collapse of large adiabatic overdensities, ii) the non-perturbative template of the non-Gaussianities is important to get accurate results. iii) the effect of the dispersion is small in determining the threshold for the compaction function, although it can be appreciable in determining the threshold amplitude for the curvature perturbation at low $f_{\rm NL}$. We also confirm that the volume averaged compaction function provides a very accurate universal estimator for the threshold.
description: 21 pages, 5 figures, comments and references added
Mecynoecia delicatula
Creators: name: Ramalho, L. V.
name: Muricy, G.
name: Taylor, P. D.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Bryozoa
Stenolaemata
Cyclostomatida
Entalophoridae
Mecynoecia
Mecynoecia delicatula

description: Mecynoecia cf. delicatula (Busk, 1875)
(Fig. 7A–F)
 Pustulopora delicatula Busk, 1875: 20.
 Entalophora delicatula: Marcus 1937: 24.
 Mecynoecia delicatula: Buge 1979: 221.
 Material examined. MNRJ-364, Baía da Guanabara, Rio de Janeiro city, 10 April 2002, collector J.E.A. Gonçalves, depth 2 m.
 Description. Colony erect, almost 11 mm long in single available example, dichotomously branched (Fig. 7A), white, basal portion broken, branch diameter 380–(460)–517 µm. Autozooids opening around entire branch, 8–10 in one circumference, frontal wall transversely wrinkled, pseudopores small (about 7 µm in diameter). Peristomes (356–(418)–630 µm long x 100–(110)–120 µm wide) gently curved frontodistally, mostly broken off (Fig. 7A, B), with few pseudopores distally (Fig. 7B–D). Aperture circular (80–(84)–100 µm diameter), sometimes bicuspate. Laminar layer of internal wall formed by flattened, distally imbricated crystallites (Fig. 7E–F). Gonozooid not observed.
 Remarks. Two species of Mecynoecia have been recorded from Brazil, M. delicatula (Busk, 1875) and M. cf. smitti (Pergens, 1887) (see Marcus 1937; Buge 1979). Mecynoecia smitti differs from M. delicatula in having six to seven zooids around the branch circumference (cf. 8–10), longer peristomes (1500 µm cf. <700 µm) and wider branches (300–380 µm diameter, cf. 380–517 µm), but generally smaller apertures (75–85 µm, cf. 80–100 µm).
 Another species, M. buski (Borg, 1944), was recorded from South America by Buge (1979). This has longer zooids (850–1400 µm), thicker branches (900–1200 µm) and larger apertures (150–190 µm) than M. cf. delicatula.
 Mecynoecia delicatula was previously described from São Paulo and Pernambuco states (Marcus 1937; Buge 1979). The Rio de Janeiro specimen is very similar to this material in all respects but, unfortunately, gonozooids are lacking, raising some doubts over the identity of the species (and even the genus).
 Ecology. Colonies found on artificial plates in a harbour, together with the cheilostome Bugula neritina (Linnaeus, 1753), in shallow (2 m) and calm water.
 Geographic distribution. Gulf of Mexico, Saint Helena, East Africa, Japan and Australia (Marcus 1937; Buge 1979). Brazil: São Paulo (Santos) and Pernambuco (Recife) States (Marcus 1937; Barbosa 1964; Buge 1979); Rio de Janeiro State (Baia da Guanabara, Rio de Janeiro city) (this study).
description: Published as part of Ramalho, L. V., Muricy, G. & Taylor, P. D., 2009, Cyclostomata (Bryozoa, Stenolaemata) from Rio de Janeiro State, Brazil, pp. 32-52 in Zootaxa 2057 on page 44
Nonlinear Volatility of River Flux Fluctuations
Creators: name: Livina, Valerie N.
name: Ashkenazy, Yosef
name: Braun, Peter
name: Monetti, Roberto
name: Bunde, Armin
name: Havlin, Shlomo
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the spectral properties of the magnitudes of river flux increments, the volatility. The volatility series exhibits (i) strong seasonal periodicity and (ii) strongly power-law correlations for time scales less than one year. We test the nonlinear properties of the river flux increment series by randomizing its Fourier phases and find that the surrogate volatility series (i) has almost no seasonal periodicity and (ii) is weakly correlated for time scales less than one year. We quantify the degree of nonlinearity by measuring (i) the amplitude of the power spectrum at the seasonal peak and (ii) the correlation power-law exponent of the volatility series.
description: 5 revtex pages, 6 pages
Systematic Literature Review Protocol
Creators: name: Plotnikova, Veronika
name: Dumas, Marlon
name: Milani, Fredrik P.
Publisher: name: figshare
Year: 2019
Subjects: subject: Applied Computer Science
subject: 80602 Computer-Human Interaction
subject: FOS: Psychology

description: This is Systematic Literature Review Protocol for research contribution on Data Mining Methodologies Adaptations.
Disporella pila Marcus 1955
Creators: name: Ramalho, L. V.
name: Muricy, G.
name: Taylor, P. D.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Bryozoa
Stenolaemata
Cyclostomatida
Lichenoporidae
Disporella
Disporella pila

description: Disporella pila Marcus, 1955
(Fig. 9A–F)
 Disporella pila Marcus, 1955: 277; Buge 1979: 243.
 Material examined. MNRJ-191, MNRJ-365: Arraial do Cabo Farol beach, Cabo Frio Island, 1 March 2002, collector L. V. Ramalho, depth 5 m.
 Description. Colony almost circular, encrusting, small, up to 5 mm diameter, white; basal lamina free, sometimes elevated from substratum, growing edge thick (Fig. 9A). Autozooids tubular, apertures circular (50–(63)–80 µm), grouped in uniserial rows (Fig. 9A, B); orientated at low angle to colony surface, their tubular walls clustered into radial ridges, some central autozooids growing freely and irregularly; apertures bicuspate, opening laterofrontally, mostly close to growing edge (Fig. 9A–C). Calcification entirely cryptocystal (Fig. 9C). Alveoli polygonal (62–(78)–100 µm diameter), interspersed among autozooids, their apertures larger than autozooidal apertures in central region, usually forming uniserial rows between autozooids in outer parts of colonies (Fig. 9C–D), containing mural spinules with star-shaped crowns (Fig. 8E). Basal lamina with flattened, distally imbricated crystallites (Fig. 9A–B, F). Gonozooid not observed.
 Remarks. The taxonomy of lichenoporids is more problematical than that of most other groups of cyclostomes because very little is known about variations in skeletal morphology in relation to the age and reproductive state of colonies. Species of Disporella from the Atlantic and Mediterranean were revised by Alvarez (1992, 1994, 1995) but D. pila was not considered in these publications. Disporella pila differs from other species in the acute angle of the autozooidal tubes to the colony surface, with the result that the apertures open laterofrontally, almost parallel to the substratum. The Rio de Janeiro material differs from D. pila as described by Marcus (1955) and Buge (1979) from the Espírito Santo coast, which have fewer rows of autozooids and a more frequently elevated basal lamina. These differences are minor, however, and the Rio de Janeiro material is identified as D. pila.
 Ecology. Colonies found encrusting the alga Sargassum at 5 m depth; Marcus (1955) also collected D. pila on non-calcareous algae.
 Geographic distribution. Espírito Santo (Vitória) and 21°10’ – 21°38’S, 40°42’ – 40°45’W (Marcus 1955; Buge 1979); Arraial do Cabo (Cabo Frio Island), Rio de Janeiro State (present study).
description: Published as part of Ramalho, L. V., Muricy, G. & Taylor, P. D., 2009, Cyclostomata (Bryozoa, Stenolaemata) from Rio de Janeiro State, Brazil, pp. 32-52 in Zootaxa 2057 on page 47
Flood Detection On Low Cost Orbital Hardware
Creators: name: Mateo-Garcia, Gonzalo
name: Oprea, Silviu
name: Smith, Lewis
name: Veitch-Michaelis, Josh
name: Schumann, Guy
name: Gal, Yarin
name: Baydin, Atılım Güneş
name: Backes, Dietmar
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Satellite imaging is a critical technology for monitoring and responding to natural disasters such as flooding. Despite the capabilities of modern satellites, there is still much to be desired from the perspective of first response organisations like UNICEF. Two main challenges are rapid access to data, and the ability to automatically identify flooded regions in images. We describe a prototypical flood segmentation system, identifying cloud, water and land, that could be deployed on a constellation of small satellites, performing processing on board to reduce downlink bandwidth by 2 orders of magnitude. We target PhiSat-1, part of the FSSCAT mission, which is planned to be launched by the European Space Agency (ESA) near the start of 2020 as a proof of concept for this new technology.
Polarized light-antiquark distributions in a meson-cloud model
Creators: name: Kumano, S.
name: Miyama, M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Flavor asymmetry is investigated in polarized light-antiquark distributions by a meson-cloud model. In particular, rho meson contributions to Delta u-bar - Delta d-bar are calculated. We point out that the g_2 part of rho contributes to the structure function g_1 of the proton in addition to the ordinary longitudinally polarized distributions in rho. This kind of contribution becomes important at medium x (>0.2) with small Q^2 (~1 GeV^2). Including N->rho N and N->rho Delta splitting processes, we obtain the polarized rho effects on the light-antiquark flavor asymmetry in the proton. The results show Delta d-bar excess over Delta u-bar, which is very different from some theoretical predictions. Our model could be tested by experiments in the near future.
description: 13 pages, REVTeX4b5, revtex4.cls, url.sty, natbib.sty, 10pt.rtx, aps.rtx, revsymb.sty, 12 eps figures. Submitted for publication. Email: kumanos@cc.saga-u.ac.jp, miyama@comp.metro-u.ac.jp. and http://hs.phys.saga-u.ac.jp
Hopf-Galois structures on extensions of degree $p^{2} q$ and skew braces of order $p^{2} q$: the cyclic Sylow $p$-subgroup case
Creators: name: Campedel, E.
name: Caranti, A.
name: Del Corso, I.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Rings and Algebras (math.RA)
subject: Group Theory (math.GR)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 12F10 16W30 20B35 20D45

description: $\DeclareMathOperator{\Aut}{Aut}$Let $p, q$ be distinct primes, with $p > 2$. We classify the Hopf-Galois structures on Galois extensions of degree $p^{2} q$, such that the Sylow $p$-subgroups of the Galois group are cyclic. This we do, according to Greither and Pareigis, and Byott, by classifying the regular subgroups of the holomorphs of the groups $(G, \cdot)$ of order $p^{2} q$, in the case when the Sylow $p$-subgroups of $G$ are cyclic. This is equivalent to classifying the skew braces $(G, \cdot, \circ)$. Furthermore, we prove that if $G$ and $Γ$ are groups of order $p^{2} q$ with non-isomorphic Sylow $p$-subgroups, then there are no regular subgroups of the holomorph of $G$ which are isomorphic to $Γ$. Equivalently, a Galois extension with Galois group $Γ$ has no Hopf-Galois structures of type $G$. Our method relies on the alternate brace operation $\circ$ on $G$, which we use mainly indirectly, that is, in terms of the functions $γ: G \to \Aut(G)$ defined by $g \mapsto (x \mapsto (x \circ g) \cdot g^{-1})$. These functions are in one-to-one correspondence with the regular subgroups of the holomorph of $G$, and are characterised by the functional equation $γ(g^{γ(h)} \cdot h) = γ(g) γ(h)$, for $g, h \in G$. We develop methods to deal with these functions, with the aim of making their enumeration easier, and more conceptual.
description: 43 pages
IMPACT OF JUPITER IN SEVENTH HOUSE ON MARRIAGE
Creators: name: K. Mangaiammal* & Dr. K. A. Velu**
Publisher: name: Zenodo
Year: 2024

description: Marriage is an auspicious event and a beginning of a new chapter in one’s life. Timing of marriage is a question that every man and woman at a certain point in their life wants to ask an astrologer. When will they get married? The prospect of marriage and timing is predicted by studying the position of Jupiter and the Seventh House in the horoscope.
Low-cost animal drawn implements for Vertisol management and strategies for land use intensification
Creators: name: Astatke, Abiye
name: Jabbar, Mohammad A.
name: Astatke, Abiye
name: Jabbar, Mohammad A.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: Livestock Production/Industries
subject: Productivity Analysis
subject: vertisols
subject: tillage
subject: equipment
subject: draught power
subject: management
subject: Ethiopia

description: The main aim of land preparation is to modify and manipulate the land features so as to create favorable environment for seed establishment and crop growth. The research and development in this field must take into account the traditional practices used by the farming community. This paper gives a brief description of farmers’ management of Vertisols and soils with 'vertic' properties and the development of the low cost broadbed maker (BBM) for facilitating surface drainage. Other attachments like planters and cultivators to the BBM for minimum tillage system which are going to be tested on-farm are also discussed.
Additional file 3 of Anatomical dimensions of the lumbar dural sac predict the sensory block level of continuous epidural analgesia during labor
Creators: name: Xu, Chen-yang
name: Liu, Can
name: Jin, Xiao-ju
name: Yang, Fan
name: Xu, Fang
name: Qian, Wan-Di
name: Guo, Wen-jun
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: Additional file 3: Supplemental Table 2. Sensory block levels.
Privacy-Preserving Tensor Factorization for Collaborative Health Data Analysis
Creators: name: Ma, Jing
name: Zhang, Qiuchen
name: Lou, Jian
name: Ho, Joyce C.
name: Xiong, Li
name: Jiang, Xiaoqian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Cryptography and Security (cs.CR)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Tensor factorization has been demonstrated as an efficient approach for computational phenotyping, where massive electronic health records (EHRs) are converted to concise and meaningful clinical concepts. While distributing the tensor factorization tasks to local sites can avoid direct data sharing, it still requires the exchange of intermediary results which could reveal sensitive patient information. Therefore, the challenge is how to jointly decompose the tensor under rigorous and principled privacy constraints, while still support the model's interpretability. We propose DPFact, a privacy-preserving collaborative tensor factorization method for computational phenotyping using EHR. It embeds advanced privacy-preserving mechanisms with collaborative learning. Hospitals can keep their EHR database private but also collaboratively learn meaningful clinical concepts by sharing differentially private intermediary results. Moreover, DPFact solves the heterogeneous patient population using a structured sparsity term. In our framework, each hospital decomposes its local tensors, and sends the updated intermediary results with output perturbation every several iterations to a semi-trusted server which generates the phenotypes. The evaluation on both real-world and synthetic datasets demonstrated that under strict privacy constraints, our method is more accurate and communication-efficient than state-of-the-art baseline methods.