cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Iconography of the northwest coast raven rattle
Creators: name: Gould, Jennifer Chambers
Publisher: name: University of British Columbia
Year: 2012

description: This thesis is concerned with a problem in the interpretation of non-western art: the iconography of the raven rattle, a carved ritual object of widespread distribution on the Northwest Coast of North America. Iconographic analysis (after Panofsky) involves identifying cultural themes and concepts associated with artistic motifs. Because of the relative scarcity of recorded primary sources of interpretation, the method adopted in this analysis has been to infer meanings from relevant cultural contexts and data. Relevant data have been judged to be museum notes, ethnographies, and myths and relevant contexts, the ceremonies in which the rattle was used. The problem has been to identify the individual motifs appearing on the rattle with associated themes and concepts, and, because the rattle is a complex image, to interpret their interrelationship within the context in which the rattle was used: initiation ceremonies presided over by chiefs. For the dominant motifs on the rattle I have argued the following interpretations: 1. The "reclining figure motif" on the back of the rattle represents the guardian spirit quest, in which the reclining figure is the novice, the protruding tongue stands for the passage of power, and the animal at the other end of the tongue identifies the source of power. 2. The "raven" at the head of the rattle refers to the origin of daylight, an event of key significance in Northwest Coast cosmology. 3. The creature on the belly of the rattle represents a trapped, wealth-bringing, supernatural, sea monster. These interpretations subsume the more specific identifications that have been made by ethnographers and informants of the objects on the rattle. Within the context in which the raven rattle was used, I have suggested that the interpretations relate to each other as follows: the origin of daylight marks the beginning of the social and natural order, of the guardian spirit quest, and of reciprocity. The sea monster on the belly is a symbol of controlled supernatural power and wealth — or the fruits of the successful quest. The relationship of these associations to the chiefs who used the rattle, is that the chief was both wealth-bringer to his tribe and had access to the "controlled use of supernatural power. This he exerted on behalf of the social order in initiation ceremonies. These conclusions indicate that the raven rattle was a significantly general symbol whose thematic referents were assumptions basic to Northwest Coast culture. In reaching these conclusions, the utility of the iconographic approach, as adapted and applied to an analysis of images in Northwest Coast art, has been demonstrated.
Co-creating the future CMIP (AGU23 Townhall)
Creators: name: John, Dunne
name: Paul, Durack
name: Isla, Simpson
name: Vaishali, Naik
name: Brian, O'Neill
name: Douglas, Rao
name: Forrest, Hoffman
name: Paul, Ullrich
name: Beth, Dingley
Publisher: name: Zenodo
Year: 2023
Subjects: Climate science
Climate modelling
CMIP
ScenarioMIP
HighResMIP
Climate data
Climate change

description: The World Climate Research Programme’s (WCRP) Coupled Model Intercomparison Project (CMIP) has coordinated international climate model experimentation, to develop a better understanding of past, present, and future climate change. Over four decades, CMIP has grown in scope and complexity, targeting climate science addressing the WCRP objectives and serving IPCC Assessments.

Work has commenced on CMIP7 planning. The project aims to meet the growing community needs, enabling climate science and providing actionable climate information to aid policymakers. To facilitate next steps, the two panels that oversee the project, the CMIP and Working Group on Coupled Modelling (WGCM) Infrastructure (WIP) Panels have established seven Task Teams to guide CMIP7 scope, design, and facilitate infrastructure developments. These aim to increase CMIP’s scientific and social relevance, widen participation, improve data accessibility, and reduce the carbon footprint.

In this Townhall, we describe ongoing planning, highlight engagement, and feedback opportunities, and invite attendee feedback. The Townhall was presented by members of the CMIP and WIP panels, seven CMIP Task Teams, and the Fresh Eyes on CMIP group. Your feedback will influence future CMIP phases to ensure utility and accessibility.
title: The Effects of Flouride Ion on some Blood Constituents of Rainbow Trout, Salmo gairdneri, Linnaeus
Creators: name: Alger, Richard H.
Publisher: name: Utah State University
Year: 1960

description: During the past quarter of a century there has been considerable investigation into the effects of fluorides on living organisms. It has been well established, as a result of these studies, that both small and elevated amounts of fluorides present in the environment may have a marked toxic effect upon gaining entry into the organism. Much of the research involving fluorides and the living organism has been confined to experimentation with animals, although considerable evidence indicates that plants are also subject to injury if fluorides are present in the atmosphere or the soil.
The great majority of the research dealing with effects of fluorides on animals has been confined to higher vertebrates, principally domestic farm species. The concentration of fluoride research in this area has been prompted by economic pressures arising from natural, industrial, or accidental fluoridation of livestock. For the most part, these investigations have been confined to determination of toxicity levels to various domestic species, while the mode of fluoride action upon living organisms has often been neglected. Some investigators, however, have postulated "defense mechanisms" within the organism whereby active fluoride ion is removed from systemic circulation and is either deposited in less active tissues of the body, or, is excreted in some manner. Such mechanisms would offer a degree of temporary protection of the organism from harmful effects of the fluoride ion.
Running coupling constant in thermal $ϕ^4$ theory up to two loop order
Creators: name: Arjun, K.
name: Vinodkumar, A. M.
name: Bannur, Vishnu Mayya
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the imaginary time formalism in thermal field theory, we derive running coupling constant and running mass in two loop order. In the process, we express the imaginary time formalism of Feynman diagrams as the summation of non-thermal quantum field theory (QFT) Feynman diagrams with coefficients that depend on temperature and mass. Renormalization constants for thermal $ϕ^4$ theory were derived using simple diagrammatic analysis. Our model links the non-thermal QFT and the imaginary time formalism by assuming both have the same mass scale $μ$ and coupling constant $g$. When these results are combined with the renormalization group equations (RGE) and applied simultaneously to thermal and non-thermal proper vertex functions, coupling constant and running mass with implicit temperature dependence are obtained. We evaluated pressure for scalar particles in two loop orders at zero external momentum limit by substituting the running mass result in the quasi-particle model.
Large-scale controls of soil organic carbon in (sub)tropical soils
Creators: name: von Fromm, Sophie Franziska
name: Hoyt, Alison M.
name: Asefaw Berhe, Asmeret
name: Shepherd, Keith D.
name: Vågen, Tor-Gunnar
name: Winowiecki, Leigh A.
name: Desta, Lulseged T.
name: Tondoh, Jerome E.
name: Sila, Andrew M.
name: Towett, Erick K.
name: Weullow, Elvis
name: Aynekulu, Ermias
name: Six, Johan
name: Trumbore, Susan E.
name: Doetterl, Sebastian
Publisher: name: ETH Zurich
Year: 2020

description: Soil organic carbon (SOC) is a key component of terrestrial ecosystems. Experimental studies have shown that soil texture and geochemistry have a strong effect on carbon stocks. However, those findings primarily rely on data from temperate regions or use model approaches that are often based on limited data from tropical and sub-tropical regions.

Here, we evaluate the controls on soil carbon stocks in Africa, using a dataset of 1,580 samples. These were collected across Sub-Saharan Africa (SSA) within the framework of the Africa Soil Information Service (AfSIS) project, which was built on the well-established Land Degradation Surveillance Framework (LDSF). Samples were taken from two depths (0–20 cm and 20–50 cm) at 46 LDSF sites that were stratified according to Koeppen-Geiger climate zones. The different pH-values, clay content, exchangeable cations and extractable elements across various soils of the different climatic zones (i.e. from arid to humid (sub)tropical) allow us to identify different soil and climate parameters that best explain SOC variance across SSA.

We tested if these SOC predictors differed across climatological conditions, using the ratio of potential evapotranspiration (PET) to mean annual precipitation (MAP) as indicator. For water-limited regions (PET/MAP > 1), the best predictors were climatic variables, likely because of their effect on the quantity of carbon inputs. Geochemistry dominated SOC storage in energy-limited systems (PET/MAP < 1), reflecting its effect on carbon protection. On a continental scale, climate (e.g. PET) is key to predicting SOC content in topsoil, whereas geochemistry, particularly iron-oxyhydroxides and aluminum-oxides, is more important in subsoil. Clay content had little influence on SOC at both depths. These findings contribute to an improved understanding of the controls on SOC stocks in tropical and sub-tropical regions.
description: EGUsphere
Center of mass in special and general relativity and its role in an effective description of spacetime
Creators: name: Chryssomalakos, C.
name: Hernandez-Coronado, H.
name: Okon, E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this contribution, we suggest the approach that geometric concepts ought to be defined in terms of physical operations involving quantum matter. In this way it is expected that some (presumably nocive) idealizations lying deep within the roots of the notion of spacetime might be excluded. In particular, we consider that spacetime can be probed only with physical (and therefore extended) particles, which can be effectively described by coordinates that fail to commute by a term proportional to the spin of the particles.
description: Prepared for the procceding of the conference DICE 2008
Decay widths of charmonia in a hot equilibrated medium
Creators: name: Mannarelli, Massimo
name: Giannuzzi, Floriana
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the properties of charmonia in a thermal medium, showing that with increasing temperature the decay widths of these mesons behave in a non-trivial way. Employing a potential model with interaction potential extracted from thermal lattice QCD calculations of the free-energy of a static quark-antiquark pair, we study some decay processes in the crossover region. We find that at temperatures $T \sim T_c$ the decay widths of the $J/Ψ$ that depend on the value of the wave function at the origin are enhanced with respect to the values in vacuum. In the same temperature range the decay width of the process $χ_{cJ} \to J/Ψ+ γ$ is enhanced by approximately a factor 6 with respect to the value in vacuum. At higher temperatures the charmonia states dissociate and the widths of both decay processes become vanishing small.
description: 6 pages, 2 figures, contribution to the conference Three Days of Strong Interactions, Wroclaw (Poland) 9. - 11. VII. 2009
title: Artificial Pothole and Level Ditch Development as a Means of Increasing Waterfowl Production
Creators: name: Lacy, Charles H.
Publisher: name: Utah State University
Year: 1959

description: The glaciated prairie pothole country of the Midwest forms a vital segment of the most important waterfowl breeding habitat in North America. Here are hatched three-quarters of all the ducks raised in the United States. During a recent seven-year period the three-state area of Minnesota and the Dakotas produced an average of 4 to 5 million ducks annually (Janzon, 1947). This wetland region which once comprised 115,000 square miles in five states had shrunk to about 56,000 square miles by 19.56 (Lynch, 1956). To maintain the pre,;ent rate of waterfowl production in the face of continued destruction of habitat through drainage and other land use practices detrimental to breeding ducks will require that remaining wet lands, particularly those in public ownership, be developed as much .as possible toward their maximum potential for waterfowl production.
In recent years the U. S. Fish and Wildlife Service has excavated several hundred experimental artificial potholes and level ditches on its refuges in the Dakotas and Minnesota. It was believed that these water areas would increase the number of ducks breeding on the refuge marshes by providing additional territorial sites. Before more funds are invested to expand this work it is important to determine the success of the existing development in meeting this objective.
This study, to evaluate the artificial pothole and level ditch development, was initiated. in 1957 by the U.S. Fish and Wildlife Service at Lower Souris National Wildlife Refuge in North Dakota. The project was carried out in collaboration with the Utah Cooperative wildlife Research Unit and the Department of Wildlife Management, Utah State University.
Children Raising Children: a Qualitative Study of the Social Determinants of Adolescent Pregnancy in Rural Ecuador
Creators: name: Herrán, Keren
name: Calle, Tania
name: Cairo, Karla
name: Palacios, Iván
Publisher: name: F1000 Research Limited
Year: 2020

description: According to the United Nations’ 2017 technical report, Latin America and the Caribbean (LAC) is the only region worldwide in which incidence rates of pregnancy for adolescents younger than 15 years of age is increasing. Ecuador specifically has the highest adolescent fertility rate among all LAC countries. These rates are concerning given the significant medical, social, and economic inequalities exacerbated by adolescent pregnancy.Hence, our research question: how do social determinants of health (SDOH) cause adolescent pregnancy in rural Ecuador?

Our team analyzed 4 focus groups composed of 5-7 adolescent (14-21 years old) mothers who had recently (within two years) given birth in El Quinche, Lumbisi, and Pifo. In depth interviews with 10 key informants (health officials, providers, and policy-makers) were also organized to explore perceptions regarding interventions and causes of adolescent pregnancy.

Our analysis revealed that the root SDOH causing adolescent pregnancy includes compromised sexual education, shame in discussing the topic, and troubled households.Therefore, we recommend that Ecuador focus on improving the quality of sexual education in schools, creating a positive sexual environment, and encouraging female empowerment. In the future, we hope to investigate the perspective of adolescent men for a more comprehensive study.
Comprehensive study of the vapour-liquid equilibria of the pure two-centre Lennard-Jones plus pointdipole fluid
Creators: name: Stoll, Jürgen
name: Vrabec, Jadran
name: Hasse, Hans
Publisher: name: arXiv
Year: 2009
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Results of a systematic investigation of the vapour-liquid equilibria of 38 individual two-centre Lennard-Jones plus axial pointdipole model fluids (2CLJD) are reported over a range of reduced dipolar momentum 0 $\le μ^{*2} \le$ 20 and of reduced elongation 0 $\le$ L* $\le$ 1.0. Temperatures investigated are from about 55 % to about 95 % of the critical temperature of each fluid. The NpT+Test Particle Method is used for the generation of vapour pressures, saturated densities, and saturated enthalpies. For the lowest temperatures, these data are calculated with highly accurate chemical potentials obtained from the gradual insertion method. Critical temperatures $T*_c$ and densities $ρ*_c$ are obtained from Guggenheim's equations. Empirical correlations for critical data $T*_c$ and $ρ*_c$ as well as for saturated densities $ρ'*$, $ρ''*$, and vapour pressures $p*_σ$ are developed as global functions of the model parameters. They describe the simulation data generally within their statistical uncertainties. Critical pressures and acentric factors of the 2CLJD fluid can be calculated from these correlations. The present results are a sound basis for adjustments of the model parameters $μ^{*2}$, $L*$, $σ$, and $ε$ to experimental VLE data of real fluids.
Eccentric debris disc morphologies I: exploring the origin of apocentre and pericentre glows in face-on debris discs
Creators: name: Lynch, Elliot M.
name: Lovell, Joshua B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The location of surface brightness maxima (e.g. apocentre and pericentre glow) in eccentric debris discs are often used to infer the underlying orbits of the dust and planetesimals that comprise the disc. However, there is a misconception that eccentric discs have higher surface densities at apocentre and thus necessarily exhibit apocentre glow at long wavelengths. This arises from the expectation that the slower velocities at apocentre lead to a "pile up'" of dust, which fails to account for the greater area over which dust is spread at apocentre. Instead we show with theory and by modelling three different regimes that the morphology and surface brightness distributions of face-on debris discs are strongly dependent on their eccentricity profile (i.e. whether this is constant, rising or falling with distance). We demonstrate that at shorter wavelengths the classical pericentre glow effect remains true, whereas at longer wavelengths discs can either demonstrate apocentre glow or pericentre glow. We additionally show that at long wavelengths the same disc morphology can produce either apocentre glow or pericentre glow depending on the observational resolution. Finally, we show that the classical approach of interpreting eccentric debris discs using line densities is only valid under an extremely limited set of circumstances, which are unlikely to be met as debris disc observations become increasingly better resolved.
description: 14 pages, 11 figures, Accepted 2021 December 1. Received 2021 September 9; in original form 2021 July 26 - MNRAS
Additional file 1 of Associations between eating habits and mental health among adolescents in five nordic countries: a cross-sectional survey
Creators: name: Fismen, Anne-Siri
name: Aarø, Leif Edvard
name: Thorsteinsson, Einar
name: Ojala, Kristiina
name: Samdal, Oddrun
name: Helleve, Arnfinn
name: Eriksson, Charli
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Science Policy
Mental Health

description: Supplementary Material 1.
Flexible-Joint Manipulator Trajectory Tracking with Learned Two-Stage Model employing One-Step Future Prediction
Creators: name: Pavlichenko, Dmytro
name: Behnke, Sven
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Flexible-joint manipulators are frequently used for increased safety during human-robot collaboration and shared workspace tasks. However, joint flexibility significantly reduces the accuracy of motion, especially at high velocities and with inexpensive actuators. In this paper, we present a learning-based approach to identify the unknown dynamics of a flexible-joint manipulator and improve the trajectory tracking at high velocities. We propose a two-stage model which is composed of a one-step forward dynamics future predictor and an inverse dynamics estimator. The second part is based on linear time-invariant dynamical operators to approximate the feed-forward joint position and velocity commands. We train the model end-to-end on real-world data and evaluate it on the Baxter robot. Our experiments indicate that augmenting the input with one-step future state prediction improves the performance, compared to the same model without prediction. We compare joint position, joint velocity and end-effector position tracking accuracy against the classical baseline controller and several simpler models.
Nutrient limitations regulate soil greenhouse gas fluxes from tropical forests: evidence from an ecosystem-scale nutrient manipulation experiment in Uganda
Creators: name: Tamale, Joseph
name: Hüppi, Roman
name: Griepentrog, Marco
name: Turyagyenda, Laban Frank
name: Barthel, Matti
name: Doetterl, Sebastian
name: Fiener, Peter
name: Van Straaten, Oliver
Publisher: name: ETH Zurich
Year: 2021

description: Tropical forests contribute significantly to the emission and uptake of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). However, studies on the soil environmental controls of greenhouse gases (GHGs) from African tropical forest ecosystems are still rare. The aim of this study was to disentangle the regulation effect of soil nutrients on soil GHG fluxes in a tropical forest in northwestern Uganda. Therefore, a large-scale nutrient manipulation experiment (NME) based on 40 m × 40 m plots with different nutrient addition treatments (nitrogen (N), phosphorus (P), N + P, and control) was established. Soil CO2, CH4, and N2O fluxes were measured monthly using permanently installed static chambers for 14 months. Total soil CO2 fluxes were partitioned into autotrophic and heterotrophic components through a root trenching treatment. In addition, soil temperature, soil water content, and mineral N were measured in parallel to GHG fluxes. N addition (N, N + P) resulted in significantly higher N2O fluxes in the transitory phase (0–28 days after fertilization, p < 0.01), because N fertilization likely increased soil N beyond the microbial immobilization and plant nutritional demands leaving the excess to be nitrified or denitrified. Prolonged N fertilization however, did not elicit a significant response in background (measured more than 28 days after fertilization) N2O fluxes. P fertilization marginally and significantly increased transitory (p = 0.052) and background (p = 0.010) CH4 consumption, probably because it enhanced methanotrophic activity. Addition of N and P together (N + P) resulted in larger CO2 fluxes in the transitory phase (p = 0.010), suggesting a possible co-limitation of N and P on soil respiration. Heterotrophic (microbial) CO2 effluxes were significantly higher than the autotrophic (root) CO2 effluxes (p < 0.001) across all treatment plots with microbes contributing about three times more to the total soil CO2 effluxes compared to roots (p < 0.001). However, neither heterotrophic nor autotrophic respiration significantly differed between treatments. The results from this study suggest that the feedback of tropical forests to the global soil GHG budget could be disproportionately altered by changes in N and P availability in these biomes.
description: Soil Discussions
title: Observations on the Life History of Channel Catfish, Ictalurus Punctatus (Rafinesque) in Utah Lake, Utah
Creators: name: Lawler, Robert E.
Publisher: name: Utah State University
Year: 1960

description: The channel catfish, Ictalurus punctatus (Rafinesque), was first introduced into Utah Lake in the summer of 1911, and has since been stocked in the lake on numerous occasions. It has only been in the last few years that the channel catfish has become an important game fish in Utah. As the value of the channel catfish, as a game fish, increased, it has become increasingly important to the state to maintain this species for present and future generations. This study was initiated in 1958 and completed in 19 60, and was financed by the Utah State Department of Fish and Game.
Data on certain phases of the channel catfish life history were investigated to provide information to aid in management of this species. The following phases were studied: age and rate of growth; age composition of the population; reproduction success; food habits; movements; and extent of the fishing pressure.
Non-WKB Models of the FIP Effect: Implications for Solar Coronal Heating and the Coronal Helium and Neon Abundances
Creators: name: Laming, J. Martin
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We revisit in more detail a model for element abundance fractionation in the solar chromosphere, that gives rise to the "FIP Effect" in the solar corona and wind. Elements with first ionization potential below about 10 eV, i.e. those that are predominantly ionized in the chromosphere, are enriched in the corona by a factor 3-4. We model the propagation of Alfven waves through the chromosphere using a non-WKB treatment, and evaluate the ponderomotive force associated with these waves. Under solar conditions, this is generally pointed upwards in the chromosphere, and enhances the abundance of chromospheric ions in the corona. Our new approach captures the essentials of the solar coronal abundance anomalies, including the depletion of He relative to H, and also the putative depletion of Ne, recently discussed in the literature. We also argue that the FIP effect provides the strongest evidence to date for energy fluxes of Alfven waves sufficient to heat the corona. However it appears that these waves must also be generated in the corona, in order to preserve the rather regular fractionation pattern without strong variations from loop to loop observed in the solar corona and slow speed solar wind.
description: 37 pages, 15 figures, accepted by ApJ
Continental-scale controls on soil organic carbon across sub-Saharan Africa
Creators: name: von Fromm, Sophie Franziska
name: Hoyt, Alison M.
name: Acquah, Gifty E.
name: Aynekulu, Ermias
name: Asefaw Berhe, Asmeret
name: Haefele, Stephan M.
name: Lange, Markus
name: McGrath, Steve P.
name: Shepherd, Keith D.
name: Sila, Andrew M.
name: Six, Johan
name: Towett, Erick K.
name: Trumbore, Susan E.
name: Vågen, Tor-Gunnar
name: Weullow, Elvis
name: Winowiecki, Leigh A.
name: Doetterl, Sebastian
Publisher: name: ETH Zurich
Year: 2020
Subjects: Biogeochemistry
Land-use
Soil organic matter
Clay mineralogy
Pedogenic threshold

description: Earlier studies have demonstrated that soil texture and geochemistry strongly affect soil organic carbon (SOC) content. However, those findings primarily rely on data from temperate regions with soil mineralogy, weathering status and climatic conditions that generally differ from tropical and sub-tropical regions.

We investigated soil properties and climate variables influencing SOC concentrations across sub-Saharan Africa. A total of 1,601 samples were analyzed, collected from two depths (0–20 cm and 20–50 cm) at 45 sentinel sites from 17 countries as part of the Africa Soil Information Service (AfSIS) project. The dataset spans climatic conditions from arid to humid and includes soils with a wide range of pHH20 values, weathering status, soil texture, exchangeable cations, extractable metals and a variety of important land cover types.

The most important SOC predictors were identified by linear mixed effects models, regression trees and random forest models. Our results indicate that SOC is primarily controlled by aridity index (PET/MAP), exchangeable calcium (Caex) and oxalate-extractable aluminum (Alox); this was found across both depth intervals. Oxalate-extractable iron (Feox) emerged as the most important predictor for both depth intervals in the regression tree and random forest analyses. However, its influence on SOC concentrations was strong only below Feox concentrations of 0.25 wt %. This suggests that Feox can act as a pedogenic threshold – even on a continental scale. Across model-ling approaches, clay and fine silt content (< 8 µm) and land cover were not significant SOC pre-dictors, in contrast to common assumptions.

Our findings indicate that the key controlling factors of SOC across sub-Saharan Africa are similar to what has been reported for temperate regions – except for soil texture and vegetation cover. However, the strength and importance of the controlling factors vary across the environmental gradient we studied.
description: Soil Discussions
Design and Experimental Study of Vacuum Suction Grabbing Technology to Grasp Fabric Piece
Creators: name: Kong, Ray Wai Man
name: Liu, Mingyi
name: Kong, Theodore Ho Tin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Vacuum Suction Grabbing Technology. The primary objective of this study was to design the grabbing technique used to determine the vacuum suction gripper and its design parameters for the pocket welting operation in apparel manufacturing. It presents the application of vacuum suction in grabbing technology, a technique that has revolutionized the handling and manipulation to grasp the various fabric materials in a range of garment industries. Vacuum suction, being non-intrusive and non-invasive, offers several advantages compared to traditional grabbing methods. It is particularly useful in scenarios where soft woven fabric and air-impermeable fabric items need to be handled with utmost care. The paper delves into the working principles of vacuum suction, its various components, and the underlying physics involved. Furthermore, it explores the various applications of vacuum suction in the garment industry into the automation exploration. The paper also highlights the challenges and limitations of vacuum suction technology and suggests potential areas for further research and development.
description: 9 Pages, 3 figures, 6 diagrams, 1 table
Conflict in the British Columbia - Cooperative Commonwealth Federation and the 'Connell Affair'
Creators: name: Wickerson, Gordon Stanley
Publisher: name: University of British Columbia
Year: 2012

description: The B.C.-CCF was formed in late 1932 shortly after the formation of the national CCF party. In November of the following year the B.C. party ran in its first election and secured sufficient support to become the official opposition. The party's executive, spurred by the prospects and hopes of its eventual election as government and in response to its need for a moderate image, selected a retired Anglican minister as House leader. The choice of Robert Connell as House leader was not, however, unanimous. Die hard socialists with different interpretations of society and the role the party should play in achieving social change, fought Connell*s leadership and received sufficient support to mount an intensive intraparty campaign of harassment and criticism. Connell's critics were successful, as a result, in making his leadership intolerable and the subsequent weight of circumstances led him to imprudently reject party convention decisions because they favoured his left wing opponents. This action both isolated him from the rank and file and gave his critics, then in control of the party's executive, an excuse to expel him for his treachery and apostasy. His leadership ended less than three years after it had begun and he became one of three B.C. party leaders dethroned during this period by his party.
Shell-model interpretation of high-spin states in 134-I
Creators: name: Coraggio, L.
name: Covello, A.
name: Gargano, A.
name: Itaco, N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: New experimental information has been recently obtained on the odd-odd nucleus 134-I. We interpret the five observed excited states up to the energy of ~3 MeV on the basis of a realistic shell-model calculation, and make spin-parity assignments accordingly. A very good agreement is found between the experimental and calculated energies.
description: 3 pages, 1 figure
Takagi-Sugeno Fuzzy Modeling and Control for Effective Robotic Manipulator Motion
Creators: name: Aldarraji, Izzat
name: Kakei, Ayad
name: Ismaeel, Ayad Ghany
name: Tsaramirsis, Georgios
name: Khan, Fazal Qudus
name: Randhawa, Princy
name: Alrammal, Muath
name: Jan, Sadeeq
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Robotic manipulators are widely used in applications that require fast and precise motion. Such devices, however, are prompt to nonlinear control issues due to the flexibility in joints and the friction in the motors within the dynamics of their rigid part. To address these issues, the Linear Matrix Inequalities (LMIs) and Parallel Distributed Compensation (PDC) approaches are implemented in the Takagy-Sugeno Fuzzy Model (T-SFM). We propose the following methodology; initially, the state space equations of the nonlinear manipulator model are derived. Next, a Takagy-Sugeno Fuzzy Model (T-SFM) technique is used for linearizing the state space equations of the nonlinear manipulator. The T-SFM controller is developed using the Parallel Distributed Compensation (PDC) method. The prime concept of the designed controller is to compensate for all the fuzzy rules. Furthermore, the Linear Matrix Inequalities (LMIs) are applied to generate adequate cases to ensure stability and control. Convex programming methods are applied to solve the developed LMIs problems. Simulations developed for the proposed model show that the proposed controller stabilized the system with zero tracking error in less than 1.5 s.
description: 3 figures
Lattice supersymmetry with Hopf algebra for the link approach
Creators: name: D'Adda, Alessandro
name: Kawamoto, Noboru
name: Saito, Jun
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: A formalism of lattice supersymmetry based on a lattice-deformed superalgebra which was originally introduced in the link approach formulation is presented. We propose that the superalgebra can in fact be identified as a Hopf algebra, showing all the Hopf algebra axioms and consistencies are satisfied with explicit formulae. In particular, the "deformed" Leibniz rules proposed in the original link approach are now built in the coproduct structure of the Hopf algebra. Fields in this scheme, as representations of the Hopf algebra, are found to obey a kind of mildly deformed statistics, which is interpreted as a braiding strucutre. We can then construct, at least perturbatively, the corresponding lattice field theory, which has the Hopf algebraic symmetry with the deformed statistics, as an example of braided quantumm field theory formulated by Oeckl.
description: 7 pages, contribution to The XXVII International Symposium on Lattice Field Theory, July 26-31, 2009, Peking University, Beijing, China
eta(1405) in a chiral approach based on mixing of the pseudoscalar glueball with the first radial excitations of eta and eta'
Creators: name: Gutsche, Thomas
name: Lyubovitskij, Valery E.
name: Tichy, Malte C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The supernumerous eta(1405) is considered a strong candidate for the pseudoscalar glueball. In a phenomenological chiral approach, we consider a mixing scenario of bare pseudoscalar (n bar n) and (s bar s) quarkonia with the glueball. We study the decay properties and point out the peculiarities of this scenario in order to support the possible identification of the J(PC) = 0(-+) glueball.
description: revised version, new references added, 14 pages, 8 figures
Additional file 5 of Keep on truckin’: how effective are health behaviour interventions on truck drivers’ health? A systematic review and meta-analysis
Creators: name: Virgara, Rosa
name: Singh, Ben
name: O’Connor, Edward
name: Szeto, Kimberley
name: Merkx, Zydan
name: Rees, Christian
name: Gilson, Nicholas
name: Maher, Carol
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Biological Sciences not elsewhere classified
Science Policy

description: Supplementary Material 5.
title: Observations of Pituitary Hormone Injections and Ripening of Fish
Creators: name: Kaushik, D. K.
Publisher: name: Utah State University
Year: 1961

description: A dependable source of quality fish spawn is a fundamental prerequisite for fish culture development. This is especially important inasmuch as most of the cultivable species do not breed in confined waters. Also, sport fisheries are gaining greater popularity, and subsequently the fish supply is being taxed. Still another need for fish spawn is in the ever increasing demand for bait minnows. Also, the construction of more and more dams has resulted in insurmountable obstacles for ascending and descending fish, which may ultimately result in complete destruction of some fisheries. Thus some measure of artificial propagation will have to be taken to safegaurd our valuable fishery resources.
A partial solution to this problem of supplementing natural propagation is that of inducing the fish to spawn artificially in the hatchery. A method of doing this is by stimulating fish to breed by the use of pituitary hormones. Those pituitary hormone-containing glands are often collected under a variety of field conditions which may involve considerable effort, time, and money. Therefore,, it was my objective in this study to develop a practical refined assay on hormones using as small an amount as possible of the crude extract of pituitary suspension, and to make it simple enough that every lay fisheries man ,dll be able to apply it, thus meeting his demand for quality fish eggs in his own hatchery when he needs it most.
The Gender Advantage: Women on the front line of climate change
Creators: name: Chakrabarti, Soma
name: Chakrabarti, Soma
Publisher: name: Unknown
Year: 2014
Subjects: subject: Environmental Economics and Policy
subject: gender
subject: human development
subject: climate
subject: environment

description: PAPERS AND BRIEFS , IN BRIEF The Gender Advantage: Women on the front line of climate change March 2014 This publication illustrates IFAD’s experience in closing the gender gap and mobilizing the ‘gender advantage’ in climate change adaptation through ten case studies from across the world. The case studies show that gender-sensitive adaptation results in better livelihood options and incomes, improved yields, more food security and reduced workloads for women and their families. They also show that women and men are better able to make informed decisions about their lives, thus balancing their human development priorities when giving attention to sustainable natural resource management.
Additional file 5 of Expanded gene and taxon sampling of diplomonads shows multiple switches to parasitic and free-living lifestyle
Creators: name: Wiśniewska, Monika M.
name: Salomaki, Eric D.
name: Silberman, Jeffrey D.
name: Terpis, Kristina X.
name: Mazancová, Eva
name: Táborský, Petr
name: Jinatham, Vasana
name: Gentekaki, Eleni
name: Čepička, Ivan
name: Kolisko, Martin
Publisher: name: figshare
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology

description: Additional file 5: Fig. S2.Maximum Likelihood trees of the selected genes involved in energy generation and pyruvate metabolism. Trees were computed using IQ-TREE with C20+LG+G+F model, statistical support was inferred from 100 rapid bootstrap replicates computed in RAxML with LG4X+G model. Host associated diplomonads are marked in orange, free-living in blue, and green shows diplomonads whose lifestyle is uncertain. Other eukaryotes are colored in red.
3D Skull Recognition Using 3D Matching Technique
Creators: name: Alanazi, Hamdan. O.
name: Zaidan, B. B
name: Zaidan, A. A
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Biometrics has become a "hot" area. Governments are funding research programs focused on biometrics. In this paper the problem of person recognition and verification based on a different biometric application has been addressed. The system is based on the 3DSkull recognition using 3D matching technique, in fact this paper present several bio-metric approaches in order of assign the weak point in term of used the biometric from the authorize person and insure the person who access the data is the real person. The feature of the simulate system shows the capability of using 3D matching system as an efficient way to identify the person through his or her skull by match it with database, this technique grantee fast processing with optimizing the false positive and negative as well .
Mean-value identities as an opportunity for Monte Carlo error reduction
Creators: name: Fernandez, L. A.
name: Martin-Mayor, V.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In the Monte Carlo simulation of both Lattice field-theories and of models of Statistical Mechanics, identities verified by exact mean-values such as Schwinger-Dyson equations, Guerra relations, Callen identities, etc., provide well known and sensitive tests of thermalization bias as well as checks of pseudo random number generators. We point out that they can be further exploited as "control variates" to reduce statistical errors. The strategy is general, very simple, and almost costless in CPU time. The method is demonstrated in the two dimensional Ising model at criticality, where the CPU gain factor lies between 2 and 4.
description: 10 pages, 2 tables. References updated and typos corrected
Deconfounding Temporal Autoencoder: Estimating Treatment Effects over Time Using Noisy Proxies
Creators: name: Kuzmanovic, Milan
name: Hatt, Tobias
name: Feuerriegel, Stefan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Estimating individualized treatment effects (ITEs) from observational data is crucial for decision-making. In order to obtain unbiased ITE estimates, a common assumption is that all confounders are observed. However, in practice, it is unlikely that we observe these confounders directly. Instead, we often observe noisy measurements of true confounders, which can serve as valid proxies. In this paper, we address the problem of estimating ITE in the longitudinal setting where we observe noisy proxies instead of true confounders. To this end, we develop the Deconfounding Temporal Autoencoder, a novel method that leverages observed noisy proxies to learn a hidden embedding that reflects the true hidden confounders. In particular, the DTA combines a long short-term memory autoencoder with a causal regularization penalty that renders the potential outcomes and treatment assignment conditionally independent given the learned hidden embedding. Once the hidden embedding is learned via DTA, state-of-the-art outcome models can be used to control for it and obtain unbiased estimates of ITE. Using synthetic and real-world medical data, we demonstrate the effectiveness of our DTA by improving over state-of-the-art benchmarks by a substantial margin.
Controls on heterotrophic soil respiration and carbon cycling in geochemically distinct African tropical forest soils
Creators: name: Bukombe, Benjamin
name: Fiener, Peter
name: Hoyt, Alison M.
name: Doetterl, Sebastian
Publisher: name: ETH Zurich
Year: 2021

description: Heterotrophic soil respiration is an important component of the global terrestrial carbon (C) cycle, driven by environmental factors acting from local to continental scales. For tropical Africa, these factors and their interactions remain largely unknown. Here, using samples collected along strong topographic and geochemical gradients in the East African Rift Valley, we study how soil chemistry and soil fertility, derived from the geochemical composition of soil parent material, can drive soil respiration even after many millennia of weathering and soil development.

To address the drivers of soil respiration, we incubated soils from three regions with contrasting geochemistry (mafic, felsic, and mixed sedimentary) sampled along slope gradients. For three soil depths, we measured the potential maximum heterotrophic respiration under stable environmental conditions as well as the radiocarbon content (Δ14C) of the bulk soil and respired CO2. We found that soil microbial communities were able to mineralize C from fossil as well as other poor quality C sources under laboratory conditions representative of tropical topsoils. Furthermore, despite similarities in terms of climate, vegetation, and the size of soil C stocks, soil respiration showed distinct patterns with soil depth and parent material geochemistry. The topographic origin of our samples was not a main determinant of the observed respiration rates and Δ14C. In situ, however, soil hydrological conditions likely influence soil C stability by inhibiting decomposition in valley subsoils. Our study shows that soil fertility conditions are the main determinant of C stability in tropical forest soils. Further, in the presence of organic carbon sources of poor quality or the presence of strong mineral related C stabilization, microorganisms tend to discriminate against these sources in favor of more accessible forms of soil organic matter as energy sources, resulting in a slower rate of C cycling.

Our results demonstrate that even in deeply weathered tropical soils, parent material has a long-lasting effect on soil chemistry that can influence and control microbial activity, the size of subsoil C stocks, and the turnover of C in soil. Soil parent material and its lasting control on soil chemistry need to be taken into account to understand and predict C stabilization and rates of C cycling in tropical forest soils.
description: Soil Discussions
Discrete Holomorphicity at Two-Dimensional Critical Points
Creators: name: Cardy, John
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: After a brief review of the historical role of analyticity in the study of critical phenomena, an account is given of recent discoveries of discretely holomorphic observables in critical two-dimensional lattice models. These are objects whose correlation functions satisfy a discrete version of the Cauchy-Riemann relations. Their existence appears to have a deep relation with the integrability of the model, and they are presumably the lattice versions of the truly holomorphic observables appearing in the conformal field theory (CFT) describing the continuum limit. This hypothesis sheds light on the connection between CFT and integrability, and, if verified, can also be used to prove that the scaling limit of certain discrete curves in these models is described by Schramm-Loewner evolution (SLE).
description: Invited talk at the 100th Statistical Mechanics Meeting, Rutgers, December 2008