cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Transversity distribution in spin asymmetries in semi-inclusive DIS and in the Drell-Yan process
Creators: name: Efremov, A. V.
name: Goeke, K.
name: Schweitzer, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A review is given on single spin asymmetries in deep inelastic semi-inclusive scattering (SIDIS) and their possible theoretical understanding in the framework of QCD-induced factorization approach, wherefore predictions for transversity from the chiral quark soliton model are used. Arising difficulties to interpret most recent SIDIS data, and the possibility to access the transversity distribution in the Drell-Yan process are discussed.
description: 20 pages, 23 eps-figures, cjpsuppl style files, presented at ASI "Spin and Symmetry", Prague, July 5-10, 2004, to be published in Czechoslovak Journal of Physics, v.55 Suppl
A survey on sufficient optimality conditions for delayed optimal control problems
Creators: name: Lemos-Paiao, Ana P.
name: Silva, Cristiana J.
name: Torres, Delfim F. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 49K15, 34H99, 49L99

description: The aim of this work is to make a survey on recent sufficient optimality conditions for optimal control problems with time delays in both state and control variables. The results are obtained by transforming delayed optimal control problems into equivalent non-delayed problems. Such approach allows to use standard theorems that ensure sufficient optimality conditions for non-delayed optimal control problems. Examples are given with the purpose to illustrate the results.
description: This is a preprint of the following paper: A. P. Lemos-Pai\~{a}o, C. J. Silva and D. F. M. Torres, A survey on sufficient optimality conditions for delayed optimal control problems, published in Mathematical Modelling and Analysis of Infectious Diseases, edited by K. Hattaf and H. Dutta, Springer Nature Switzerland AG. Submitted 2/Feb/2020; revised 16/Apr/2020; accepted 17/Apr/2020. arXiv admin note: substantial text overlap with arXiv:1901.04340, arXiv:1804.06937
Airborn point clouds for "General method of point-to-point matching for rigorous optimization in kinematic laser scanning"
Creators: name: Brun, Aurélien
Publisher: name: Zenodo
Year: 2024

description: This dataset contains airborne point clouds described in the paper "General method of point-to-point matching for rigorous optimization in kinematic laser scanning".

Experiment to geoereference such point clouds is provided in the original publication, Sec. 3.2 while their georeferencing accuracy is provided in Sec. 4.2
Non-additive effects of mixed-species leaf-litter on a benthic stream community in the Pacific Northwest
Creators: name: Kolodziejczyk, Renata
Publisher: name: University of British Columbia
Year: 2009

description: Organic matter inputs from three riparian tree species (red alder, western redcedar, and western hemlock) were investigated for food resource value to stream macroinvertebrates and fungi. Leaflitter species were tested both individually and in mixed-species combinations (7 treatments) using two sets of stream mesocosms. Within the initial 3 weeks, ergosterol content (an index of fungal biomass) showed little variation between litter types. Differentiation started around 6 weeks and progressed over the 12 week duration of the experiment to where fungal accrual in hemlock litter was significantly higher that that of alder or cedar. In one set of mesocosms, macroinvertebrate biomass was significantly higher in alder-containing treatments, particularly for the shredderdetritivore species, while chironomids such as Chaetocladius and Heterotanytarsus were significantly more abundant in conifer-only treatments. No increase in shredder abundance or biomass coincided with the increase in ergosterol content, even when hemlock litter attained a peak of 810 pig ergosterol/g detritus. Shredder-detritivores were the group most affected by mixed-leaf species treatments. Data from single-litter channels were used to generate predicted abundance and biomass of macroinvertebrates for mixed-litter channels. Comparisons of predicted versus observed values in mixed-litter treatments found significantly higher 'non-additive effects' in abundance and biomass for alder-cedar and in biomass for alder-hemlock treatments. These effects were due primarily to the shredders Zapada and Lepidostoma, which achieved a higher abundance and biomass than predicted. Individual Zapada were also larger in alder-cedar and alder-hemlock treatments. A potential mechanism for this non-additive effect may be associated with faster accrual of fungal biomass on the alder leaf-litter when in mixed alder-conifer litter combinations compared to single-litter treatments. Results differed between mesocosms, and in one set of mesocosms with lower overall macroinvertebrate densities, no distinct pattern was evident. These results suggest a fungal mediated improvement in resource quality when in mixed-litter combinations.
Frequency mixing in a ferrimagnetic sphere resonator
Creators: name: Mathai, Cijy
name: Masis, Sergei
name: Shtempluck, Oleg
name: Hacohen-Gourgy, Shay
name: Buks, Eyal
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Frequency mixing in ferrimagnetic resonators based on yttrium and calcium vanadium iron garnets (YIG and CVBIG) is employed for studying their nonlinear interactions. The ferrimagnetic Kittel mode is driven by applying a pump tone at a frequency close to resonance. We explore two nonlinear frequency mixing configurations. In the first one, mixing between a transverse pump tone and an added longitudinal weak signal is explored, and the experimental results are compared with the predictions of the Landau-Zener-Stuckelberg model. In the second one, intermodulation measurements are employed by mixing pump and signal tones both in the transverse direction for studying a bifurcation between a stable spiral and a stable node attractors. Our results are applicable for developing sensitive signal receivers with high gain for both the radio frequency and the microwave bands.
Characterizing Boundedness in Chase Variants
Creators: name: Delivorias, Stathis
name: Leclère, Michel
name: Mugnier, Marie-Laure
name: Ulliana, Federico
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Existential rules are a positive fragment of first-order logic that generalizes function-free Horn rules by allowing existentially quantified variables in rule heads. This family of languages has recently attracted significant interest in the context of ontology-mediated query answering. Forward chaining, also known as the chase, is a fundamental tool for computing universal models of knowledge bases, which consist of existential rules and facts. Several chase variants have been defined, which differ on the way they handle redundancies. A set of existential rules is bounded if it ensures the existence of a bound on the depth of the chase, independently from any set of facts. Deciding if a set of rules is bounded is an undecidable problem for all chase variants. Nevertheless, when computing universal models, knowing that a set of rules is bounded for some chase variant does not help much in practice if the bound remains unknown or even very large. Hence, we investigate the decidability of the k-boundedness problem, which asks whether the depth of the chase for a given set of rules is bounded by an integer k. We identify a general property which, when satisfied by a chase variant, leads to the decidability of k-boundedness. We then show that the main chase variants satisfy this property, namely the oblivious, semi-oblivious (aka Skolem), and restricted chase, as well as their breadth-first versions. This paper is under consideration for publication in Theory and Practice of Logic Programming.
description: Under consideration for publication in Theory and Practice of Logic Programming
Nanobiopolymer for direct targeting and inhibition of EGFR expression in triple negative breast cancer.pdf
Creators: name: Lungwani Muungo
Publisher: name: figshare
Year: 2020
Subjects: subject: 111201 Cancer Cell Biology
subject: FOS: Clinical medicine
subject: 111202 Cancer Diagnosis
subject: 111204 Cancer Therapy (excl. Chemotherapy and Radiation Therapy)
subject: 111203 Cancer Genetics

description: Treatment options for triple negative breast cancer (TNBC) are generally limited to cytotoxic chemotherapy. Recently, antiepidermalgrowth factor receptor (EGFR) therapy has been introduced for TNBC patients. We engineered a novelnanobioconjugate based on a poly(b-L-malic acid) (PMLA) nanoplatform for TNBC treatment. The nanobioconjugate carriesanti-tumor nucleosome-specific monoclonal antibody (mAb) 2C5 to target breast cancer cells, anti-mouse transferrinreceptor (TfR) antibody for drug delivery through the host endothelial system, and Morpholino antisense oligonucleotide(AON) to inhibit EGFR synthesis. The nanobioconjugates variants were: (1) P (BioPolymer) with AON, 2C5 and anti-TfR fortumor endothelial and cancer cell targeting, and EGFR suppression (P/AON/2C5/TfR), and (2) P with AON and 2C5 (P/AON/2C5). Controls included (3) P with 2C5 but without AON (P/2C5), (4) PBS, and (5) P with PEG and leucine ester (LOEt) forendosomal escape (P/mPEG/LOEt). Drugs were injected intravenously to MDA-MB-468 TNBC bearing mice. Tissueaccumulation of injected nanobioconjugates labeled with Alexa Fluor 680 was examined by Xenogen IVIS 200 (live imaging)and confocal microscopy of tissue sections. Levels of EGFR, phosphorylated and total Akt in tumor samples were detectedby western blotting. In vitro western blot showed that the leading nanobioconjugate P/AON/2C5/TfR inhibited EGFRsynthesis significantly better than naked AON. In vivo imaging revealed that 2C5 increased drug-tumor accumulation.Significant tumor growth inhibition was observed in mice treated with the lead nanobioconjugate (1) [P = 0.03 vs. controls;P,0.05 vs. nanobioconjugate variant (2)]. Lead nanobioconjugate (1) also showed stronger inhibition of EGFR expressionand Akt phosphorylation than other treatments. Treatment of TNBC with the new nanobioconjugate results in tumorgrowth arrest by inhibiting EGFR and its downstream signaling intermediate, phosphorylated Akt. The nanobioconjugaterepresents a new generation of nanodrugs for treatment of TNBC.
Macroscopic current fluctuations in stochastic lattice gases
Creators: name: Bertini, L.
name: De Sole, A.
name: Gabrielli, D.
name: Jona-Lasinio, G.
name: Landim, C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study current fluctuations in lattice gases in the macroscopic limit extending the dynamic approach to density fluctuations developed in previous articles. More precisely, we derive large deviation estimates for the space--time fluctuations of the empirical current which include the previous results. Large time asymptotic estimates for the fluctuations of the time average of the current, recently established by Bodineau and Derrida, can be derived in a more general setting. There are models where we have to modify their estimates and some explicit examples are introduced.
description: 4 pages, LaTeX, Changed content
Migration, Household Composition, and Child Welfare in Rural Northeast Thailand
Creators: name: Cameron, Michael P.
name: Lim, Steven
name: Cameron, Michael P.
name: Lim, Steven
Publisher: name: Unknown
Year: 2005
Subjects: subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Environmental Economics and Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Health Economics and Policy
subject: migration
subject: household composition
subject: children
subject: Thailand

description: In many developing countries the composition of rural households is influenced by the migration of adult household members to urban locations in search of employment. Children may be left in the care of their mother alone, or in the care of grandparents when both parents have migrated. Using representative data from a household survey conducted in rural Northeast Thailand in 2003, this paper investigates whether household composition has any effect on the welfare of children, as measured by anthropometric measurements including height-for-age, weight-for-age, and weight-for-height. Our findings suggest that household types other than nuclear families result in some significantly worse child nutritional outcomes. The implication is that governments should protect the welfare of the children of migrants, either through targeted programs or through increased opportunities for employment in rural areas.
Mechanistic_understanding_and_holistic_a.pdf
Creators: name: Lungwani Muungo
Publisher: name: figshare
Year: 2020
Subjects: subject: 111501 Basic Pharmacology
subject: FOS: Clinical medicine

description: Rapid industrialisation, increased rate of waste production, higher agricultural inputs, mining, industrial waste,and contaminated irrigation water are increasing the heavy metal contamination in agricultural land andfreshwater sources. These heavy metals contaminated resources are used by humans for food production thatultimately get accumulated in the food chain. Biomagnification of heavy metals can pose solemn health threatsto human life, such as mutations, endocrine disruption, nephro-toxicity, etc. There has long been a need fordecontamination of these resources and prevention from the further contamination to avert the negative effectson human health. The “phytoremediation” process is a very promising and eco-friendly approach for heavymetal remediation from contaminated sites with some limitations. An effort has been made to present thescattered information of phytoremediation technique in a single paper through this review. The present reviewdescribes the fundamentals of phytoremediation including the different associated processes, mechanism, andinfluencing factors. The mechanism of tolerance and detoxification of heavy metals by plants has also beendiscussed in brief. The possible amelioration/modification of a particular phytoremediation strategy has beenadvocated to increase its potential efficacy and further development of these strategies for future reference. Thereview tries to cover all the essential and adequate information of the relevant published data with some recentadvances in phytoremediation approaches. It is recommended to apply the combination of different availabletechniques or phytoremediation techniques with modern chemical, biological and genetic engineering tools foran easy and effective decontamination of heavy metals from soil and agricultural land. The review advocates thedevelopment of site specific, farmer driven, sequential and phytoremediation strategies along with policy supportfor effective decontamination.
Critical turning moments and drag equations for British Columbia conifers
Creators: name: Byrne, Kenneth Earl
Publisher: name: University of British Columbia
Year: 2009

description: Tree winching experiments were conducted for 4 British Columbia (BC) tree species: western redcedar (Thuja plicata (Donn ex D. Don) Spach), western hemlock (Tsuga heterophylla (Raf.) Sarg.), and lodgepole pine (Pinus contorta Doug, ex Loud.), and hybrid spruce (Picea engelmannii Parry XPicea glauca (Moench) Voss). Strong linear relationships between stem mass and critical turning moments were found. Based on the slope coefficients, lodgepole pine (145.6), hybrid spruce (118.6), western redcedar (94.5), and western hemlock (77.4) have different critical turning moments with respect to mass. Comparison with results for trees in the United Kingdom (UK) tree winching database indicated that there is a difference between the slope coefficients for BC pine and pine grown in the UK on equivalent soils. Wind tunnel experiments with juvenile crowns of the hybrid spruce were compared with results from earlier experiments with redcedar, hemlock and lodgepole pine. Static and dynamic drag coefficients, and mass versus drag relationships were examined. Differences in drag coefficients exist for species with different foliage characteristics, however, differences in the mass/drag relationships were less pronounced. Critical turning moment and drag results were used to adjust selected parameters in the UK Forestry Commission's mechanistic windthrow risk model 'ForestGALES' to estimate critical wind speeds for the four BC species and for lodgepole pine and hemlock grown in the UK. UK grown trees have higher critical wind speeds than trees of the same species grown in BC. More work is required to adjust ForestGALES to reflect the differences in tree form and mechanical attributes for BC species and to validate model predictions.
A reinforcement learning based decision support system in textile manufacturing process
Creators: name: He, Zhenglei
name: Tran, Kim Phuc
name: Thomassey, Sébastien
name: Zeng, Xianyi
name: Yi, Changhai
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper introduced a reinforcement learning based decision support system in textile manufacturing process. A solution optimization problem of color fading ozonation is discussed and set up as a Markov Decision Process (MDP) in terms of tuple {S, A, P, R}. Q-learning is used to train an agent in the interaction with the setup environment by accumulating the reward R. According to the application result, it is found that the proposed MDP model has well expressed the optimization problem of textile manufacturing process discussed in this paper, therefore the use of reinforcement learning to support decision making in this sector is conducted and proven that is applicable with promising prospects.
Low-complexity Architecture for AR(1) Inference
Creators: name: Borges, A.
name: Cintra, R. J.
name: Coelho, D. F. G.
name: Dimitrov, V. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Hardware Architecture (cs.AR)
subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this Letter, we propose a low-complexity estimator for the correlation coefficient based on the signed $\operatorname{AR}(1)$ process. The introduced approximation is suitable for implementation in low-power hardware architectures. Monte Carlo simulations reveal that the proposed estimator performs comparably to the competing methods in literature with maximum error in order of $10^{-2}$. However, the hardware implementation of the introduced method presents considerable advantages in several relevant metrics, offering more than 95% reduction in dynamic power and doubling the maximum operating frequency when compared to the reference method.
description: 7 pages, 3 tables, 4 figures
Some uniqueness results for dynamical horizons
Creators: name: Ashtekar, Abhay
name: Galloway, Gregory J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We first show that the intrinsic, geometrical structure of a dynamical horizon is unique. A number of physically interesting constraints are then established on the location of trapped and marginally trapped surfaces in the vicinity of any dynamical horizon. These restrictions are used to prove several uniqueness theorems for dynamical horizons. Ramifications of some of these results to numerical simulations of black hole spacetimes are discussed. Finally several expectations on the interplay between isometries and dynamical horizons are shown to be borne out.
description: 26 pages, 4 figures, v4: references updated, minor corrections, to appear in Advances in Theoretical and Mathematical Physics
Modelling Waikato Farm Nitrogen Discharges for Policy Analysis
Creators: name: Ramilan, Thiagarajah
name: Scrimgeour, Frank G.
name: Ramilan, Thiagarajah
name: Scrimgeour, Frank G.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Farm Management
subject: Health Economics and Policy
subject: Industrial Organization
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Research Methods/ Statistical Methods
subject: Resource /Energy Economics and Policy
subject: Riparian margins
subject: Non point pollution
subject: Nitrogen
subject: Linear programming
subject: and Environmental policy

description: This study describes the development of bio economic models examining the economic and water quality impact of various proposed policy options in the Upper Waikato catchment. In the first phase nitrogen emissions are determined for representative farming systems using the Overseer nutrient budget model. These model components are integrated into an economic model, which predicts producer responses to various policy options. The second phase determines catchment wide costs and water quality impacts of riparian buffers by combining geographic information system, bio economic modelling and experimental data. The results of the study signals directions for policy initiatives and further analysis exploring policy design and all costs associated with production adjustment.
The high-energy emission from HD~93129A near periastron
Creators: name: del Palacio, S.
name: García, F.
name: Altamirano, D.
name: Barbá, R. H.
name: Bosch-Ramon, V.
name: Corcoran, M.
name: De Becker, M.
name: Hamaguchi, K.
name: Apellániz, J. Maíz
name: Adrover, P. Munar
name: Paredes, J. M.
name: Romero, G. E.
name: Sana, H.
name: Tavani, M.
name: ud-Doula, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We conducted an observational campaign towards one of the most massive and luminous colliding wind binaries in the Galaxy, HD~93129A, close to its periastron passage in 2018. During this time the source was predicted to be in its maximum of high-energy emission. Here we present our data analysis from the X-ray satellites \textit{Chandra} and \textit{NuSTAR} and the $γ$-ray satellite \textit{AGILE}. High-energy emission coincident with HD~93129A was detected in the X-ray band up to $\sim$18~keV, whereas in the $γ$-ray band only upper limits were obtained. We interpret the derived fluxes using a non-thermal radiative model for the wind-collision region. We establish a conservative upper limit for the fraction of the wind kinetic power that is converted into relativistic electron acceleration, $f_\mathrm{NT,e} < 0.02$. In addition, we set a lower limit for the magnetic field in the wind-collision region as $B_\mathrm{WCR} > 0.3$~G. We also argue a putative interpretation of the emission from which we estimate $f_\mathrm{NT,e} \approx 0.006$ and $B_\mathrm{WCR} \approx 0.5$~G. We conclude that multi-wavelength, dedicated observing campaigns during carefully selected epochs are a powerful tool for characterising the relativistic particle content and magnetic field intensity in colliding wind binaries.
description: 11 pages, 10 figures, accepted for publication in MNRAS
Perelomov type coherent states of SO(D + 1) in all dimensional loop quantum gravity
Creators: name: Long, Gaoping
name: Bodendorfer, Norbert
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A comprehensive study of the application of SO$(D+1)$ coherent states of Perelomov type to loop quantum gravity in general spacetime dimensions $D+1\geq 3$ is given in this paper. We focus on so-called simple representations of SO$(D+1)$ which solve the simplicity constraint and the associated homogeneous harmonic function spaces. With the harmonic function formulation, we study general properties of the coherent states such as the peakedness properties and the inner product. We also discuss the properties of geometric operators evaluated in the coherent states. In particular, we calculate the expectation value of the volume operator, and the results agree with the ones obtained from the classical label of the coherent states up to error terms which vanish in the limit of large representation labels $N$, i.e. the analogue of the large spin limit in standard $3+1$-dimensional loop quantum gravity.
Mutant IDH is sufficient to initiate enchondromatosis in mice 01.pdf
Creators: name: Lungwani Muungo
Publisher: name: figshare
Year: 2020
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine

description: Enchondromas are benign cartilage tumors and precursors tomalignant chondrosarcomas. Somatic mutations in the isocitratedehydrogenase genes (IDH1 and IDH2) are present in the majorityof these tumor types. How these mutations cause enchondromasis unclear. Here, we identified the spectrum of IDH mutations inhuman enchondromas and chondrosarcomas and studied theireffects in mice. A broad range of mutations was identified, includingthe previously unreported IDH1-R132Q mutation. These mutationsharbored enzymatic activity to catalyze α-ketoglutarate toD-2-hydroxyglutarate (D-2HG). Mice expressing Idh1-R132Q in oneallele in cells expressing type 2 collagen showed a disorderedgrowth plate, with persistence of type X-expressing chondrocytes.Chondrocyte cell cultures from these animals or controls showedthat there was an increase in proliferation and expression of genescharacteristic of hypertrophic chondrocytes with expression ofIdh1-R132Q or 2HG treatment. Col2a1-Cre;Idh1-R132Q mutantknock-in mice (mutant allele expressed in chondrocytes) did notsurvive after the neonatal stage. Col2a1-Cre/ERT2;Idh1-R132 mutantconditional knock-in mice, in which Cre was induced by tamoxifenafter weaning, developed multiple enchondroma-like lesions.Taken together, these data show that mutant IDH or D-2HG causespersistence of chondrocytes, giving rise to rests of growth-platecells that persist in the bone as enchondromas.
Multiple Criteria Decision Making: Method Selection And Application To Three Contrasting Agricultural Case Studies
Creators: name: Dooley, A.E.
name: Sheath, Gavin W.
name: Smeaton, D.
name: Dooley, A.E.
name: Sheath, Gavin W.
name: Smeaton, D.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Farm Management
subject: Land Economics/Use
subject: Multiple criteria decision making
subject: agriculture
subject: decision making

description: Agribusiness, farm business and agricultural-environmental decisions which varied in their characteristics were used to evaluate multiple criteria decision making (MCDM) in an agricultural context. This paper discusses differences between the case studies, strengths and weaknesses of the methods used, and the success of the MCDM process based on participants’ expectations and experiences. While MCDM can help identify the best decision, the main benefits identified in using MCDM included better understanding of their own and other’s perspectives, a means to explain the decision and a structured way to work through the decision process. Key problem areas identified included time limitations, understanding and ownership.
Orderly Disorder in Point Cloud Domain
Creators: name: Ghahremani, Morteza
name: Tiddeman, Bernard
name: Liu, Yonghuai
name: Behera, Ardhendu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In the real world, out-of-distribution samples, noise and distortions exist in test data. Existing deep networks developed for point cloud data analysis are prone to overfitting and a partial change in test data leads to unpredictable behaviour of the networks. In this paper, we propose a smart yet simple deep network for analysis of 3D models using `orderly disorder' theory. Orderly disorder is a way of describing the complex structure of disorders within complex systems. Our method extracts the deep patterns inside a 3D object via creating a dynamic link to seek the most stable patterns and at once, throws away the unstable ones. Patterns are more robust to changes in data distribution, especially those that appear in the top layers. Features are extracted via an innovative cloning decomposition technique and then linked to each other to form stable complex patterns. Our model alleviates the vanishing-gradient problem, strengthens dynamic link propagation and substantially reduces the number of parameters. Extensive experiments on challenging benchmark datasets verify the superiority of our light network on the segmentation and classification tasks, especially in the presence of noise wherein our network's performance drops less than 10% while the state-of-the-art networks fail to work.
Searches for Extra Dimensions at the Tevatron
Creators: name: Unel, Muge Karagoz
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Models in which gravity and/or Standard Model gauge bosons propagate in more than three spatial dimensions have implications that can be tested at current colliders. In this paper, we report on the results from searches for extra dimensions at the two Tevatron experiments, CDF and D0, which utilize up to 200 pb^-1 of proton-antiproton collision data from Run II taken at 1.96 TeV CoM energy, between spring 2002 and fall 2003.
description: 10 Pages. Proceedings, Hadron Collider Physics (HCP 2004), E. Lansing, Michigan, USA
Neoclassical consumer theory and genetically modified food
Creators: name: Kaye-Blake, William
name: Kaye-Blake, William
Publisher: name: Unknown
Year: 2005
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Research Methods/ Statistical Methods
subject: genetically modified food
subject: neoclassical
subject: bounded rationality
subject: choice modelling

description: Three axioms underpin consumer choice in neoclassical theory: weak order, independence, and continuity. Two of these axioms may not hold, however, for consumers’ choices regarding genetically modified (GM) food. Consumers may evaluate product attributes differently depending on whether the food is GM or not, violating attribute independence. Some consumers may not want GM food at all, violating continuity. The axioms were empirically investigated with a choice experiment survey. The paper discusses evidence of violations of both independence and continuity, as well as a non-neoclassical approach to modelling consumer choice.
Vertex functions and infrared fixed point in Landau gauge SU(N) Yang-Mills theory
Creators: name: Alkofer, Reinhard
name: Fischer, Christian S.
name: Llanes-Estrada, Felipe J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The infrared behaviour of vertex functions in an SU(N) Yang-Mills theory in Landau gauge is investigated employing a skeleton expansion of the Dyson-Schwinger equations. The three- and four-gluon vertices become singular if and only if all external momenta vanish while the dressing of the ghost-gluon vertex remains finite in this limit. The running coupling as extracted from either of these vertex functions possesses an infrared fixed point. In general, diagrams including ghost-loops dominate in the infrared over purely gluonic ones.
description: 14 pages, 8 figures, v2: typos corrected, version to be published in PLB
Mirror Dark Matter and Electronic Recoil Events in XENON1T
Creators: name: Zu, Lei
name: Yuan, Guan-Wen
name: Feng, Lei
name: Fan, Yi-Zhong
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recently, the XENON1T experiment has reported the possible detection of an excess in the electronic recoil spectrum. Such an excess may indicate the presence of new physics. In this work, we suggest that the scattering of mirror electrons with ordinary electrons through photon$-$mirror photon kinetic mixing with parameter $ε\sim 10^{-12}(n_{\rm e'}/0.2{\rm cm^{-3}})^{-1/2}({v_{\rm c}^0/5\times 10^{9}~{\rm cm~s^{-1}}})^{1/2}$ may account for the excess electronic recoil events in XENON1T, where $n_{\rm e'}$ is the density of mirror electron and $v_{\rm c}^0$ is the cutoff velocity of the mirror electron arriving at the earth. Interestingly, this parameter to interpret the excess of XENON1T electronic recoil spectrum are consistent with the constrains of Darkside50.
description: 5 pages, 3 figures
Niche Agribusiness Supply Chains and the Channel Coordinator’s Role in their Creation and Management
Creators: name: Patterson, Alastair
name: Martin, Sandra
name: Mollenkopf, Diane A.
name: Patterson, Alastair
name: Martin, Sandra
name: Mollenkopf, Diane A.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Farm Management
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: Production Economics
subject: Risk and Uncertainty
subject: Channel coordinator
subject: supply chain structure
subject: niche markets
subject: New Zealand meat industry

description: The role of the channel coordinator and the structure of their supply chains are critical to the success of a supply chain that produces a product targeted at a specific market niche. Without the management of the channel coordinator, focussed on delivering a product with specific attributes to the target niche, the supply chain will be incapable of working in concert and creating a cohesive product offering. The supply chain structure is critical to this process. Although these two concepts are often mentioned in the supply chain and associated literature, and despite their importance, there is very little empirical evidence that shows the linkage between the channel coordinator and the supply chain structure. This paper is based on the analysis of five case studies of small firms that have created supply chains to market a meat product with specialised attributes to a target market niche. A framework is developed to determine the factors that will influence the strategy of a channel coordinator when managing their supply chain, and hence, the way they will structure the supply chain most effectively and profitably to reach the target market niche with the product attributes desired.
Solution-processed GaSe nanoflake-based films for photoelectrochemical water splitting and photoelectrochemical-type photodetectors
Creators: name: Zappia, Marilena Isabella
name: Bianca, Gabriele
name: Bellani, Sebastiano
name: Serri, Michele
name: Najafi, Leyla
name: Oropesa-Nuñez, Reinier
name: Martín-García, Beatriz
name: Bouša, Daniel
name: Sedmidubský, David
name: Pellegrini, Vittorio
name: Sofer, Zdeněk
name: Cupolillo, Anna
name: Bonaccorso, Francesco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Gallium selenide (GaSe) is a layered compound, which has been exploited in nonlinear optical applications and photodetectors due to its anisotropic structure and pseudo-direct optical gap. Theoretical studies predicted that its two-dimensional (2D) form is a potential photocatalyst for water splitting reactions. Herein, we first report the photoelectrochemical (PEC) characterization of GaSe nanoflakes (single-/few-layer flakes), produced via liquid phase exfoliation, for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in both acidic and alkaline media. In 0.5 M H2SO4, the GaSe photoelectrodes display the best PEC performance, i.e. a ratiometric power-saved metric for HER (Φsaved,HER) of 0.09% and a ratiometric power-saved metric for OER (Φsaved,OER) of 0.25%. When used as PEC-type photodetectors, GaSe photoelectrodes show a responsivity of ~0.16 A W-1 upon 455 nm illumination at light intensity of 63.5 uW cm-2 and applied potential of -0.3 V vs. reversible hydrogen electrode (RHE). The stability analysis of the GaSe photodetectors evidences a durable operation over tens of cathodic linear sweep voltammetry scans in 0.5 M H2SO4 for HER. Viceversa, degradation effects have been observed in both alkaline and anodic operation due to highly oxidizing environment and O2-induced (photo-)oxidation effects. Our results provide new insight into PEC properties of GaSe nanoflakes for their exploitation in photoelectrocatalysis, PEC-type photodetectors and (bio)sensors.
Policies and politics: Challenges and opportunities for agricultural and resource economists
Creators: name: Pannell, David J.
name: Pannell, David J.
Publisher: name: Unknown
Year: 2005
Subjects: Agricultural and Food Policy
Crop Production/Industries
Demand and Price Analysis
Environmental Economics and Policy
Farm Management
Political Economy
Resource /Energy Economics and Policy

description: This is a broad-ranging discussion of the role of economics and economists in the formation of government policies. The focus is on helping economists who wish to be influential in the policy process. The paper covers rationales for and against economist involvement in the policy process (market failure, government failure, economist failure), a range of theories that attempt to explain aspects of the policy process, and practical advice and insights based on the experiences of policy economists. Many challenges are highlighted, but some clear opportunities are apparent, particularly through explicit advocacy for the public interest.
Dynamical Systems on Hilbert C*-Modules
Creators: name: Abbaspour, Gh.
name: Moslehian, M. S.
name: Niknam, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Operator Algebras (math.OA)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 47D03, 46L08, 46L05

description: We investigate the generalized derivations and show that every generalized derivation on a simple Hilbert $C^*$-module either is closable or has a dense range. We also describe dynamical systems on a full Hilbert $C^*$-module ${\mathcal M}$ over a $C^*$-algebra ${\mathcal A}$ as a one-parameter group of unitaries on ${\mathcal M}$ and prove that if $α: \R\to U({\mathcal M})$ is a dynamical system, where $U({\mathcal M})$ denotes the set of all unitary operator on ${\mathcal M}$, then we can correspond a $C^*$-dynamical system $α^{'}$ on ${\mathcal A}$ such that if $δ$ and $d$ are the infinitesimal generators of $α$ and $α^{'}$ respectively, then $δ$ is a $d$-derivation.
description: 7 pages, minor changes, to appear in Bull. Iranian Math. Soc
A Preliminary Analysis of the Benefits of Introducing Apomixis into Rice
Creators: name: Frisvold, George B.
name: Bicknell, Kathryn
name: Bicknell, Ross
name: Frisvold, George B.
name: Bicknell, Kathryn
name: Bicknell, Ross
Publisher: name: Unknown
Year: 2005
Subjects: Agribusiness
Agricultural and Food Policy
Crop Production/Industries
Environmental Economics and Policy
Farm Management
Institutional and Behavioral Economics
Land Economics/Use
Production Economics
Research Methods/ Statistical Methods

description: The objective of this research is to undertake an ex ante economic analysis of basic scientific research that aims to identify the gene(s) that control apomictic reproduction, with the ultimate aim of transferring the characteristic into commercially important crops. This paper reports very preliminary results, using the introduction of apomixis into rice as a case study. Apomixis is a natural, asexual method of plant reproduction resulting in offspring that are genetically identical to the mother plant. Apomixis promises to revolutionize plant breeding by providing a system for crop improvement that allows any desired variety, including hybrids, to breed true. This ability will make both breeding and seed production more efficient. It offers the opportunity for plant breeders to more readily develop varieties that are specifically adapted to local conditions, using, and thus conserving, greater genetic diversity. Apomixis will also allow resource-poor farmers to replant the seed they produce from locally bred varieties year after year, a strategy not possible with today's commercial hybrid varieties. Global changes in aggregate welfare, resource allocation, production and price levels are calculated using the global economy-wide computable general equilibrium model known as GTAP. Preliminary modeling results suggest that the overall welfare gains associated apomictic rice could be substantial.
Forest certification in the Canadian value-added wood products manufacturing sector
Creators: name: Jayasinghe, Piyangi
Publisher: name: University of British Columbia
Year: 2009

description: Third party forest certification has been recognized as a policy mechanism for achieving sustainable forest management (SFM), and has been in practice for more than a decade. In Canada, forest certification is reported to be gaining momentum, influencing both forest management practices and the forest products industry. However, little information is available on how forest certification affects the forest products industry. Questions like "what are forest products manufacturers' attitudes towards forest certification" are rarely investigated, despite their importance to the progress of forest certification. The scarcity of research is particularly evident in the Canadian value-added wood products manufacturing sector. A Canada-wide mail survey was conducted during April and July of 2004 among value-added wood products manufacturers to address this information gap in the industry. One thousand surveys were sent out. The response rate was 13.14%, with no statistically significant response bias. According to the results of the survey, 64.8% of Canadian value-added manufacturers are not interested in forest certification. Over seventeen percent of the sector (17.6%) is currently involved with forest certification, while another 17.6% is interested in becoming involved within next five years. Two results were highlighted with regard to the majority's lack of interest towards adopting forest certification: their low level of knowledge on forest certification and a perceived lack of consumer demand for certified forest products. In general, all respondents cared about sustainable forest management and the concept of forest certification, but were doubtful about forest certification's ability to provide marketing and production-related benefits. A logistic regression and a cluster analysis were conducted to distinguish between firms that are interested and not interested in forest certification. Logistic regression highlighted two points: firms that are not interested in forest certification had a significantly lower level of knowledge of chain of custody certification (chain of custody certification certifies the use of raw materials from certified forests in forest products); and firms that are interested in forest certification had a stronger belief that certification would help to differentiate them from their competition. Cluster analysis grouped firms that are interested in forest certification into two clusters: one cluster had a very positive attitude towards forest certification and its ability to provide benefits, while the other indicated that they would "wait and see" how consumer markets for certified forest products develop.
Modelling the rotational curves of spiral galaxies with a scalar field
Creators: name: Mbelek, J. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In a previous work (Mbelek 2001), we modelled the rotation curves (RC) of spiral galaxies by including in the equation of motion of the stars the dynamical terms from an external real self-interacting scalar field, $ψ$, minimally coupled to gravity and which respects the equivalence principle in the weak fields and low velocity approximation. This model appeared to have three free parameters : the turnover radius, $r_{0}$, the maximum tangential velocity, $v_{θmax} = v_θ(r_{0})$, plus a strictly positive integer, $n$. Here, we propose a new improved version where the coupling of the $ψ$-field to dark matter is emphasized at the expense of its self-interaction. This reformulation presents the very advantageous possibility that the same potential is used for all galaxies. Using at the same time a quasi-isothermal dark matter density and the scalar field helps to better fit the RC of spiral galaxies. In addition, new correlations are established.
description: Latex, 5 pages with 3 Postscript figures
Gravettian Pavlov Point
Creators: name: Katzman, Jean Luc
Publisher: name: figshare
Year: 2020
Subjects: subject: Anthropology
subject: FOS: Sociology
subject: 210102 Archaeological Science
subject: FOS: History and archaeology

description: Short comment about a rare Eastern Gravettian Projectile Point
Gibbs conditioning extended, Boltzmann conditioning introduced
Creators: name: Grendar, Marian
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 60F05; 60F10

description: Conditional Equi-concentration of Types on I-projections (ICET) and Extended Gibbs Conditioning Principle (EGCP) provide an extension of Conditioned Weak Law of Large Numbers and of Gibbs Conditioning Principle to the case of non-unique Relative Entropy Maximizing (REM) distribution (aka I-projection). ICET and EGCP give a probabilistic justification to REM under rather general conditions. mu-projection variants of the results are introduced. They provide a probabilistic justification to Maximum Probability (MaxProb) method. 'REM/MaxEnt or MaxProb?' question is discussed, briefly. Jeffreys Conditioning Principle is mentioned.
description: Three major changes: 1) Definition of proper I-projection has been changed. 2) An argument preceding Eq. (7) at the proof of ICET is now correctly stated. 3) Abstract was rewritten. To appear at Proceedings of MaxEnt 2004 workshop