cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Freight Demand Statistical Modeling: A Classification and Review
Creators: name: M.P, Boile
name: M., Golias
name: M.P, Boile
name: M., Golias
Publisher: name: Unknown
Year: 2005
Subjects: Research and Development/Tech Change/Emerging Technologies
Research Methods/ Statistical Methods

description: Linear Regression is used as a prediction tool in transportation planning, traffic data analysis and safety. Many researchers have attempted to address several transportation issues using these types of models. The accuracy and stability of these models is mainly dependent on the size of the available data. Unlike other science fields, where sophisticated algorithms are used to deal with problems of small datasets, the majority of freight demand modeling relies on simple statistical techniques. Limitations of these modeling methodologies, caused by their high dependence on data availability, and several assumptions that need to be made can result in erroneous models. In cases in which limited data are available, more advanced algorithms that can be legitimately used on small datasets should be applied. In this paper a description and classification of algorithms and processes used for creating these types of models under limited data is presented. To demonstrate the applicability of these algorithms, along with implementation problems, limitations, and the different performance measures, a case study is used. Different models are created and results are presented and discussed.
Additional file 17: of Characterization of primary cilia during the differentiation of retinal ganglion cells in the zebrafish
Creators: name: Lepanto, Paola
name: Davison, Camila
name: Casanova, Gabriela
name: Badano, Jose
name: Zolessi, Flavio
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Hematology

description: Primary cilia in maturing RGCs. (PDF 3994Â kb)
The Role of Research in Developing Energy Policy
Creators: name: Robertson, Andrew
Publisher: name: Apollo - University of Cambridge Repository
Year: 2014

description: Decarbonising the electricity sector has been identified as a short-term priority for cutting UK greenhouse gas emissions in response to the risks of climate change. The scale and rate of change in the electricity sector means that there is a strong need for energy research and a big potential for new research to influence policy. This article outlines examples of the areas where research is, or could be, particularly influential in policy making and uses them to demonstrate some of challenges policy makers face in using research to develop policy.
Experimental pathogenesis of pullorum disease in chicks by local isolate of Salmonella Pullorum in Bangladesh
Creators: name: Haider, M.G.
name: Chowdhury, E.H.
name: Ahmed, A.K.M.
name: Hossain, M.M.
name: Haider, M.G.
name: Chowdhury, E.H.
name: Ahmed, A.K.M.
name: Hossain, M.M.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Livestock Production/Industries
subject: Pathogenesis
subject: Pullorum disease
subject: ELISA
subject: PCR
subject: Chicks

description: This study was undertaken to observe the experimental pathogenesis of locally isolated Salmonella enterica subspecies enterica serovar Pullorum in chicks. Fifty chicks were experimentally infected by the oral route with 2 x 107 (CFU) units of Salmonella Pullorum organisms reconstituted in 0.5 ml of sterile phosphate buffer saline (PBS), PH 7.2 and 50 chicks were given only 0.5 ml of sterile PBS as control. Observations were made on clinical signs, gross pathology, and reisolation of S. Pullorum from different organs and blood, histopathological lesions, detection of antibody levels and detection of S. Pullorum by PCR at different time intervals of experimental period. Five birds were randomly selected and sacrificed on 6 hrs before inoculation and 6 hrs, 12 hrs, 24 hrs, 2 days, 3 days, 1st week, 2nd, 3rd and 4th weeks of post infection (PI). The clinical signs of infected chicks were depression, loss of appetite, huddled together, loss of feed and water intake, reduced mean body weights, ruffled feathers, diarrhoea, laboured breathing and pasty vent. The highest gross lesion was (84%) unabsorbed and coagulated yolk and the lowest lesion was (32%) pericarditis and necrotic foci/ nodules in heart. Microscopically, the liver showed congestion, focal necrosis with multifocal infiltration of histiocytes in liver parenchyma. Salmonella organisms were reisolated from different organs and blood at 12 hrs PI. The antibody titre increased gradually and the highest titer was 7275.717 ± 5087.24 at 4 wks PI. In rapid plate agglutination test, the positive result was found from one wk of PI with the sera of infected birds. At 12hrs PI Salmonella was detected by PCR from 20% liver and 20% lung samples of infected birds and no Salmonella was isolated from control group. The orally inoculated Salmonella Pullorum organisms produced lesions in digestive tract, invaded digestive tracts and entered to blood and seeded to different organs in different time intervals and ultimately produced clinical signs, gross and microscopic tissue lesions with immunological response.
Quantitative analysis of Matthew effect and sparsity problem of recommender systems
Creators: name: Wang, Hao
name: Wang, Zonghu
name: Zhang, Weishi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Recommender systems have received great commercial success. Recommendation has been used widely in areas such as e-commerce, online music FM, online news portal, etc. However, several problems related to input data structure pose serious challenge to recommender system performance. Two of these problems are Matthew effect and sparsity problem. Matthew effect heavily skews recommender system output towards popular items. Data sparsity problem directly affects the coverage of recommendation result. Collaborative filtering is a simple benchmark ubiquitously adopted in the industry as the baseline for recommender system design. Understanding the underlying mechanism of collaborative filtering is crucial for further optimization. In this paper, we do a thorough quantitative analysis on Matthew effect and sparsity problem in the particular context setting of collaborative filtering. We compare the underlying mechanism of user-based and item-based collaborative filtering and give insight to industrial recommender system builders.
Business models for electric vehicles
Creators: name: Weiller, Clare
Publisher: name: Apollo - University of Cambridge Repository
Year: 2013

description: Two key sectors to reduce greenhouse gas emissions (GHG) and energy consumption in the UK and globally are electricity and transport. At the interface between these two sectors, electric vehicles offer a significant potential to reduce GHG emissions due to their higher well-to-wheel energy efficiency relative to conventional internal combustion engines and other alternative fuel vehicles.
The von Neumann entropy and information rate for ideal quantum Gibbs ensembles
Creators: name: Johnson, Oliver
name: Suhov, Yuri
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistics Theory (math.ST)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 94A15; 62B10

description: A model of a quantum information source is proposed, based on the Gibbs ensemble of ideal (free) particles (bosons or fermions). We identify the (thermodynamic) von Neumann entropy as the information rate and establish the classical Lempel--Ziv universal coding algorithm in Grassberger's form for such a source. This generalises the Schumacher theorem to the case of non-IID qubits.
description: 16 pages: revised version of Feb 2001 taking into account referee's comments
Son of a gun: military contributions to science
Creators: name: Gorvett, Zaria
Publisher: name: Apollo - University of Cambridge Repository
Year: 2013

description: The race to out-tech the enemy has been fuelling scientific discovery for thousands of years, generating some extraordinary inventions and thrusting humanity forwards into a modern age. In the wake of a succession of defence budget cuts in the UK and abroad, this article considers the legacy of military research.
Evaluation of some chemical parameters of powder milk available in Mymensingh town
Creators: name: Kajal, M.F.I.
name: Wadud, A.
name: Islam, M.N.
name: Sarma, P.K.
name: Kajal, M.F.I.
name: Wadud, A.
name: Islam, M.N.
name: Sarma, P.K.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Livestock Production/Industries
subject: Chemical parameters
subject: Powder milk
subject: Evaluation

description: The study was undertaken to evaluate some chemical parameters of powder milk available in Mymensingh town. Powder milk samples of six different brands namely Kwality, NIDO, Diploma, Anchor, Farmland & Starship were collected from local market. Powder samples were analyzed to know the chemical (PH , acidity, fat, protein, lactose, ash, moisture, solids-not-fat, total solids) characteristics. PH , acidity of all samples was almost similar to the cow milk when the dried milk was reconstituted. PH ranged from 6.6-6.8, acidity from 0.10-0.15, fat from 26.198-27.89 g/100 g, protein from 25.22-27.01 g/100g, lactose from 36.63-37.65 g/100g, ash from 5.34-5.48 g/100g, moisture from 3.36- 4.48 g/100g, solids-not-fat from 67.99-70.07 g/100g, total solids from 95.51-96.63 g/100g, among the brands of powder milk. Statistical analysis showed significant variation for (PH and acidity) among different powder milk brands. chemical parameters in all brands of milk powder was found as per recommended standard.
Topological nature of the proper spin current and the spin-Hall torque
Creators: name: Liu, Hong
name: Cullen, James H.
name: Culcer, Dimitrie
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin currents are key to spin torque devices, but determining the proper spin current is non-trivial. Here we derive a general quantum-mechanical formula for the intrinsic proper spin current showing that it is topological and can be finite in the gap. For topological insulators with an out of plane magnetization and the chemical potential in the surface state gap, the net spin torque is determined by the competition between the topological spin-Hall torque due to the bulk and the topological Edelstein effect due to the surface states. We also discuss spin-3/2 hole quantum wells.
Additional file 14: of Characterization of primary cilia during the differentiation of retinal ganglion cells in the zebrafish
Creators: name: Lepanto, Paola
name: Davison, Camila
name: Casanova, Gabriela
name: Badano, Jose
name: Zolessi, Flavio
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology

description: Primary cilia first appear in RGC neuroblasts during apical process retraction and in an apical position. (PDF 3553Â kb)
Additional file 15: of Characterization of primary cilia during the differentiation of retinal ganglion cells in the zebrafish
Creators: name: Lepanto, Paola
name: Davison, Camila
name: Casanova, Gabriela
name: Badano, Jose
name: Zolessi, Flavio
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology

description: Primary cilia dynamics in relation to RGC differentiation events. (PDF 109Â kb)
Comparison of Source Images for protons, $π^-$'s and $Λ$'s in 6 AGeV Au+Au collisions
Creators: name: Chung, P.
name: Ajitanand, N. N.
name: Alexander, J. M.
name: Anderson, M.
name: Best, D.
name: Brady, F. P.
name: Case, T.
name: Caskey, W.
name: Cebra, D.
name: Chance, J. L.
name: Cole, B.
name: Crowe, K.
name: Das, A. C.
name: Draper, J. E.
name: Gilkes, M. L.
name: Gushue, S.
name: Heffner, M.
name: Hirsch, A. S.
name: Hjort, E. L.
name: Huo, L.
name: Justice, M.
name: Kaplan, M.
name: Keane, D.
name: Kintner, J. C.
name: Klay, J.
name: Krofcheck, D.
name: Lacey, R. A.
name: Lauret, J.
name: Lisa, M. A.
name: Liu, H.
name: Liu, Y. M.
name: McGrath, R.
name: Milosevich, Z.
name: Odyniec, G.
name: Olson, D. L.
name: Panitkin, S.
name: Porile, N. T.
name: Rai, G.
name: Ritter, H. G.
name: Romero, J. L.
name: Scharenberg, R.
name: Srivastava, B.
name: Stone, N. T. B
name: Symons, T. J. M.
name: Whitfield, J.
name: Witt, R.
name: Wood, L.
name: Zhang, W. N.
name: Brown, D.
name: Pratt, S.
name: Wang, F.
name: Danielewicz, P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Source images are extracted from two-particle correlations constructed from strange and non-strange hadrons produced in 6 AGeV Au + Au collisions. Very different source images result from pp vs p$Λ$ vs $π^-π^-$ correlations. These observations suggest important differences in the space-time emission histories for protons, pions and neutral strange baryons produced in the same events.
Collective nature of orbital excitations in layered cuprates in the absence of apical oxygens
Creators: name: Martinelli, Leonardo
name: Wohlfeld, Krzysztof
name: Pelliciari, Jonathan
name: Arpaia, Riccardo
name: Brookes, Nicholas B.
name: Di Castro, Daniele
name: Fernandez, Mirian G.
name: Kang, Mingu
name: Krockenberger, Yoshiharu
name: Kummer, Kurt
name: McNally, Daniel E.
name: Paris, Eugenio
name: Schmitt, Thorsten
name: Yamamoto, Hideki
name: Walters, Andrew
name: Zhou, Ke-Jin
name: Braicovich, Lucio
name: Comin, Riccardo
name: Sala, Marco Moretti
name: Devereaux, Thomas P.
name: Daghofer, Maria
name: Ghiringhelli, Giacomo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have investigated the 3d orbital excitations in CaCuO2 (CCO), Nd2CuO4 (NCO), and La2CuO4 (LCO) using high-resolution resonant inelastic x-ray scattering. In LCO they behave as well-localized excitations, similarly to several other cuprates. On the contrary, in CCO and NCO the dxy orbital clearly disperse, pointing to a collective character of this excitation (orbiton) in compounds without apical oxygen. We ascribe the origin of the dispersion as stemming from a substantial next-nearest-neighbor (NNN) orbital superexchange. Such an exchange leads to the liberation of orbiton from its coupling to magnons, which is associated with the orbiton hopping between nearest neighbor copper sites. We show that the exceptionally large NNN orbital superexchange can be traced back to the absence of apical oxygens suppressing the charge transfer energy.
description: 24 pages, 10 figures
Additional file 13: of Characterization of primary cilia during the differentiation of retinal ganglion cells in the zebrafish
Creators: name: Lepanto, Paola
name: Davison, Camila
name: Casanova, Gabriela
name: Badano, Jose
name: Zolessi, Flavio
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Developmental Biology

description: Primary cilia emerging from the basolateral membrane of retinal neuroepithelial cells. (PDF 1690Â kb)
Utilization of parboiled rice polish based diet with supplementation of phytase and carbohydrase in growing ducklings
Creators: name: Naher, B.
name: Miah, M.Y.
name: Roahman, M.M.
name: Wahid, M.A.
name: Naher, B.
name: Miah, M.Y.
name: Roahman, M.M.
name: Wahid, M.A.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Livestock Production/Industries
subject: Carbohydrase
subject: Duckling
subject: Phytase
subject: Rice polish

description: A total of 60 day old straight run pekin ducklings were fed ad libitum on 6 diets viz, D1- 15% parboiled rice polish (PRP) based diet, D2- D1 + Mixed enzyme (Carbohydrase 120 ppm/kg + phytase 1000FYT/kg), D3- 25% parboiled rice polish (PRP) based diet, D4 - D3 + Mixed enzyme ( Carbohydrase 120 ppm/kg + phytase 1000FYT/kg), D5-35% parboiled rice polish (PRP) based diet, D6 - D5+ Mixed enzyme ( Carbohydrase 120 ppm/kg + phytase 1000FYT/kg) for 84 days. Diets were supplied two stages containing 22.5, 22.5, 22.8% CP for starter and 16.4, 16.9, 17% CP for finisher. Increasing PRP levels without enzyme decreased live weight, feed intake and feed conversion but increase profitability without affecting livability. Addition of mixed enzyme promoted growth, feed conversion significantly (P<0.01), but did not alter livability. The rate of improvement in performance for enzyme supplementation increased with increasing level of dietary PRP. Therefore, it was concluded that it is possible to reduce costly grain by using PRP in duck ration and supplementation of phytase and carbohydrase in PRP diet may be beneficial to improve performance of ducks.
Risk Management Considerators for Camelina and Carinata
Creators: name: Diersen, Matthew A.
name: Saleh, Sumaiya
name: Diersen, Matthew A.
name: Saleh, Sumaiya
Publisher: name: Unknown
Year: 2015
Subjects: subject: Farm Management
subject: Risk and Uncertainty
subject: crop insurance
subject: oilseeds
subject: written agreements
subject: yield history

description: Relatively new crops pose a challenge to growers and agribusinesses. While they would explore returns from new crops, adoption may mean giving up risk management tools inherent with growing established crops. The oilseed crops camelina and carinata are discussed in the context of the ability to insure them in South Dakota. Camelina (Camelina sativa) is currently insurable in portions of Montana and North Dakota. While carinata (Brassica carinata) is not insurable with a stand-alone policy, coverage was available in Montana and North Dakota in 2015 under the canola policy as a rapeseed type. Processor contracts are often a necessary condition for insuring these crops. The trade-offs of existing coverage and potential changes are examined for camelina and carinata from the perspective of a grower outside the existing coverage areas. In the absence of standard coverage, growers may choose to self-insure, obtain single-peril coverage (e.g., hail), or seek Noninsured Crop Disaster Assistance Program (NAP) coverage. Written agreements for camelina are not available, but NAP coverage may be feasible. For carinata, growers may explore written agreements for coverage under a canola policy.
Bogoliubov - de Gennes versus Quasiclassical Description of Josephson Structures
Creators: name: Ozana, M.
name: Shelankov, A.
name: Tobiska, J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The applicability of the quasiclassical theory of superconductivity in Josephson multi-layer structures is analyzed. The quasiclassical approach is compared with the exact theory based on the Bogoliubov - de Gennes equation. The angle and energy resolved (coarse-grain) currents are calculated using both techniques. It is shown that the two approaches agree in $SIS'IS''$ geometries after the coarse-grain averaging. A quantitative discrepancy, which exceeds the quasiclassical accuracy, is observed when three or more interfaces are present. The invalidity of the quasiclassical theory is attributed to the presence of closed trajectories formed by sequential reflections on the interfaces.
description: revtex4,12 pages, 12 figures
E2EAI: End-to-End Deep Learning Framework for Active Investing
Creators: name: Wei, Zikai
name: Dai, Bo
name: Lin, Dahua
Publisher: name: arXiv
Year: 2023
Subjects: subject: Portfolio Management (q-fin.PM)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: Active investing aims to construct a portfolio of assets that are believed to be relatively profitable in the markets, with one popular method being to construct a portfolio via factor-based strategies. In recent years, there have been increasing efforts to apply deep learning to pursue "deep factors'' with more active returns or promising pipelines for asset trends prediction. However, the question of how to construct an active investment portfolio via an end-to-end deep learning framework (E2E) is still open and rarely addressed in existing works. In this paper, we are the first to propose an E2E that covers almost the entire process of factor investing through factor selection, factor combination, stock selection, and portfolio construction. Extensive experiments on real stock market data demonstrate the effectiveness of our end-to-end deep leaning framework in active investing.
description: 12 pages, 3 figures, Factoring Investing, Portfolio Management
The Structure of South Dakota Agriculture: 1935-2012
Creators: name: Brown, Henry
name: Janssen, Larry
name: Diersen, Matthew
name: Van Der Sluis, Evert
name: Brown, Henry
name: Janssen, Larry
name: Diersen, Matthew
name: Van Der Sluis, Evert
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agricultural Finance
subject: Land Economics/Use
subject: Census of Agriculture
subject: farms
subject: farm operators
subject: NAICS

description: This study presents key components of the structure of agriculture in South Dakota. As a major industry in South Dakota, agriculture plays a pivotal role in the overall vitality of the economy. Agriculture in South Dakota spans many industries, including the production of agricultural commodities, food and feed processing, agricultural input manufacturing, agri-business, and other agricultural-based industries. This report is based on data from the Census of Agriculture. The report presents long-term trends for farm numbers, the number of operators, land use, and other important characteristics of agriculture. The study emphasizes family farms, because they will continue to dominate the farm operations in the state. Overall, as the agricultural sector continues to evolve, it will remain a key component of the economic base in the state.
Variability of extragalactic X-ray jets on kiloparsec scales
Creators: name: Meyer, Eileen T.
name: Shaik, Aamil
name: Tang, Yanbo
name: Reid, Nancy
name: Reddy, Karthik
name: Breiding, Peter
name: Georganopoulos, Markos
name: Chiaberge, Marco
name: Perlman, Eric
name: Clautice, Devon
name: Sparks, William
name: DeNigris, Nat
name: Trevor, Max
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Unexpectedly strong X-ray emission from extragalactic radio jets on kiloparsec scales has been one of the major discoveries of Chandra, the only X-ray observatory capable of sub-arcsecond-scale imaging. The origin of this X-ray emission, which appears as a second spectral component from that of the radio emission, has been debated for over two decades. The most commonly assumed mechanism is inverse Compton upscattering of the Cosmic Microwave Background (IC-CMB) by very low-energy electrons in a still highly relativistic jet. Under this mechanism, no variability in the X-ray emission is expected. Here we report the detection of X-ray variability in the large-scale jet population, using a novel statistical analysis of 53 jets with multiple Chandra observations. Taken as a population, we find that the distribution of p-values from a Poisson model is strongly inconsistent with steady emission, with a global p-value of 1.96e-4 under a Kolmogorov-Smirnov test against the expected Uniform (0,1) distribution. These results strongly imply that the dominant mechanism of X-ray production in kpc-scale jets is synchrotron emission by a second population of electrons reaching multi-TeV energies. X-ray variability on the time-scale of months to a few years implies extremely small emitting volumes much smaller than the cross-section of the jet.
description: Published in Nature Astronomy 29 May 2023; Supplemental Information and Excel File included in 1st submission; Published article in most recent
Classification Model Development Based on Cluster-to-Class Distance Mapping for Tourism Form Prediction of Inbound Tourism Market in Thailand
Creators: name: Thepparit Banditwattanawong
Publisher: name: King Mongkut's Institute of Technology Ladkrabang
Year: 2021
Subjects: tourism form
classification algorithm
clustering algorithm
cluster-to-class mapping

description: Current Applied Science and Technology, 21, 2, 393-407
Observed and Physical Properties of Core-Collapse Supernovae
Creators: name: Hamuy, Mario
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I use photometry and spectroscopy data for 24 Type II plateau supernovae to examine their observed and physical properties. This dataset shows that these objects encompass a wide range of ~5 mag in their plateau luminosities, their expansion velocities vary by x5, and the nickel masses produced in these explosions go from 0.0016 to 0.26 Mo. From a subset of 16 objects I find that the explosion energies vary between 0.6x and 5.5x10^51 ergs, the ejected masses encompass the range 14-56 Mo, and the progenitors' radii go from 80 to 600 Ro. Despite this great diversity several regularities emerge, which reveal that there is a continuum in the properties of these objects from the faint, low-energy, nickel-poor SNe 1997D and 1999br, to the bright, high-energy, nickel-rich SN 1992am. This study provides evidence that more massive progenitors produce more energetic explosions, thus suggesting that the outcome of the core collapse is somewhat determined by the envelope mass. I find also that supernovae with greater energies produce more nickel. Similar relationships appear to hold for Type Ib/c supernovae, which suggests that both Type II and Type Ib/c supernovae share the same core physics. When the whole sample of core collapse objects is considered, there is a continous distribution of energies below 8x10^51 ergs. Far above in energy scale and nickel production lies the extreme hypernova 1998bw, the only supernova firmly associated to a GRB.
description: 25 pages, 7 figures, accepted for Part 1 of Astrophysical Journal
Axial symmetry cosmological constant vacuum solution of field equations with a curvature singularity, closed time-like curves and deviation of geodesics
Creators: name: Ahmed, Faizuddin
name: Hazarika, Bidyut Bikash
name: Sarma, Debojit
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In this paper, we present a type D, non-vanishing cosmological constant, vacuum solution of the Einstein's field equations, extension of an axially symmetric, asymptotically flat vacuum metric with a curvature singularity. The space-time admits closed time-like curves (CTCs) that appear after a certain instant of time from an initial spacelike hypersurface, indicating it represents a time-machine space-time. We wish to discuss the physical properties and show that this solution can be interpreted as gravitational waves of Coulomb-type propagate on anti-de Sitter space backgrounds. Our treatment focuses on the analysis of the equation of geodesic deviation.
description: 17 pages, accepted for publication in Adv. High Energy Physics journal
Productions of $X(3872)$, $Z_c(3900)$, $X_2(4013)$, and $Z_c(4020)$ in $B_{(s)}$ decays offer strong clues on their molecular nature
Creators: name: Wu, Qi
name: Liu, Ming-Zhu
name: Geng, Li-Sheng
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The exotic states $X(3872)$ and $Z_c(3900)$ have long been conjectured as isoscalar and isovector $\bar{D}^*D$ molecules. In this work, we first propose the triangle diagram mechanism to investigate their productions in $B$ decays as well as their heavy quark spin symmetry partners, $X_2(4013)$ and $Z_c(4020)$. We show that the large isospin breaking of the ratio $\mathcal{B}[B^+ \to X(3872) K^+]/\mathcal{B}[B^0 \to X(3872) K^0] $ can be attributed to the isospin breaking of the neutral and charged $\bar{D}^*D$ components in their wave functions. For the same reason, the branching fractions of $Z_c(3900)$ in $B$ decays are smaller than the corresponding ones of $X(3872)$ by at least one order of magnitude, which naturally explains its non-observation. A hierarchy for the production fractions of $X(3872)$, $Z_c(3900)$, $X_2(4013)$, and $Z_c(4020)$ in $B$ decays, consistent with all existing data, is predicted. Furthermore, with the factorization ansatz we extract the decay constants of $X(3872)$, $Z_c(3900)$, and $Z_c(4020)$ as $\bar{D}^*D^{(*)}$ molecules via the $B$ decays, and then calculate their branching fractions in the relevant $B_{(s)}$ decays, which turn out to agree with all existing experimental data. The mechanism we proposed is useful to elucidate the internal structure of the many exotic hadrons discovered so far and to extract the decay constants of hadronic molecules,which can be used to predict their production in related processes.
New Limit on the Permanent Electric Dipole Moment of $^{129}$Xe using $^{3}$He Comagnetometry and SQUID Detection
Creators: name: Sachdeva, N.
name: Fan, I.
name: Babcock, E.
name: Burghoff, M.
name: Chupp, T. E.
name: Degenkolb, S.
name: Fierlinger, P.
name: Haude, S.
name: Kraegeloh, E.
name: Kilian, W.
name: Knappe-Grüneberg, S.
name: Kuchler, F.
name: Liu, T.
name: Marino, M.
name: Meinel, J.
name: Rolfs, K.
name: Salhi, Z.
name: Schnabel, A.
name: Singh, J. T.
name: Stuiber, S.
name: Terrano, W. A.
name: Trahms, L.
name: Voigt, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report results of a new technique to measure the electric dipole moment of $^{129}$Xe with $^3$He comagnetometry. Both species are polarized using spin-exchange optical pumping, transferred to a measurement cell, and transported into a magnetically shielded room, where SQUID magnetometers detect free precession in applied electric and magnetic fields. The result from a one week measurement campaign in 2017 and a 2.5 week campaign in 2018, combined with detailed study of systematic effects, is $d_A(^{129}\mathrm{Xe}) = (1.4 \pm 6.6_\mathrm{stat} \pm 2.0_\mathrm{syst})\times10^{-28}~e\,\mathrm{cm}$. This corresponds to an upper limit of $|d_A(^{129}\mathrm{Xe})| < 1.4 \times 10^{-27} ~e\,\mathrm{cm}~(95\%~\mathrm{CL})$, a factor of five more sensitive than the limit set in 2001.
description: To be published in Physical Review Letters. arXiv admin note: substantial text overlap with arXiv:1902.02864
title: Nanoscale characterization of T cell receptor microclusters
Creators: name: Baresch, Glendys
Publisher: name: TU Wien
Year: 2021
Subjects: subject: Single molecule localization microscopy
subject: T cell
subject: T cell receptor
subject: microcluster
subject: immunological synapse
subject: superrcitical angle fluorescence

description: The interaction between the T cell receptor (TCR) and the peptide in major histocompatibility complex (pMHC) molecules is a crucial step in T cell activation. The entire process of antigen recognition control and the relative contributions of TCR–MHC binding energy are still not well-understood. In order to analyse the protein clustering at the nanoscales upon T cell activation in animal model TCR, single molecule localization microscopy (SMLM) with direct stochastic optical reconstruction microscopy (dSTORM) based on total internal reflection fluorescence (TIRF) was used. The beta chain of TCR was labelled with a single chain fragment of antibody scFv-AF647. With the mentioned microscopic techniques, a different subset of fluorescent probes was activated at different times, allowing these fluorophores to be imaged without substantial spatial overlap and to be localized with high precision in xyz-coordinates. The axial precision was achieved using the defocussing approach with the help of the near field of a dipole, using supercritical angle fluorescence (SAF). SAF light only occurs near the coverslip, which gives the advantage of gathering information for determining the axial position of the fluorophore by using interference to cause a change in the shape of the image of a fluorophore point spread function (PSF) on the camera. The interference was controlled and optimized using the focus position. Using this method allowed the analysis of microclusters in the nanoscale with three dimensional (3D) super resolution technique. The aim of this thesis was to compare various parameters of TCR microclusters such as: size, density, and z-position depending on different concentrations of pMHC, using density based spatial clustering of applications with noise (DBSCAN) as clustering algorithm.
Critical behaviour of fully-frustrated Potts models
Creators: name: Foster, D P
name: Gerard, C
name: Puha, I
Publisher: name: arXiv
Year: 2001
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: A numerical transfer matrix calculation is presented for two fully-frustrated three-state Potts models on the square lattice: the Potts piled-up-domino model and the Potts zig-zag model. The ground state entropies and phase diagrams are found. The Potts piled-up-domino model displays a finite-temperature transition when the frustration effects are maximal, and displays reentrant behaviour, in contrast to the Ising model equivalent. The ground-state entropy per spin is larger than in the Ising equivalent. The Potts zig-zag model displays the same qualitative behaviour as its Ising counterpart, and the ground-state entropy per spin is the same in the Potts and Ising cases.
description: 24 pages, 10 figures. To appear in Journal of Physics A
Additional file 12: of Characterization of primary cilia during the differentiation of retinal ganglion cells in the zebrafish
Creators: name: Lepanto, Paola
name: Davison, Camila
name: Casanova, Gabriela
name: Badano, Jose
name: Zolessi, Flavio
Publisher: name: figshare
Year: 2019
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology

description: Main features of apical primary cilia in the early differentiating retinal neuroepithelium. (PDF 2898Â kb)
Statistical Analysis of Composite Spectra
Creators: name: Abul-Magd, A. Y.
name: Harney, H. L.
name: Simbel, M. H.
name: Weidenmueller, H. A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We consider nearest neighbor spacing distributions of composite ensembles of levels. These are obtained by combining independently unfolded sequences of levels containing only few levels each. Two problems arise in the spectral analysis of such data. One problem lies in fitting the nearest neighbor spacing distribution to the histogram of level spacings obtained from the data. We show that the method of Bayesian inference is superior to this procedure. The second problem occurs when one unfolds such short sequences. We show that the unfolding procedure generically leads to an overestimate of the chaoticity parameter. This trend is absent in the presence of long-range level correlations. Thus, composite ensembles of levels from a system with long-range spectral stiffness yield reliable information about the chaotic behavior of the system.
description: 26 pages, 3 figures; v3: changed conclusions, appendix added
Topological enhancement of exciton-polariton coherence with non-Hermitian morphing
Creators: name: Bao, Ruiqi
name: Xu, Huawen
name: Verstraelen, Wouter
name: Liew, Timothy C. H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The non-Hermitian skin effect (NHSE) has been intensely investigated over the past few years and has unveiled new topological phases, which have no counterparts in Hermitian systems. Here we consider the hybridization between the NHSE in an exciton-polariton waveguide and a localized defect mode. By tuning the non-Hermiticity, we find that the resulting ground-state of the system is both spatially extended and energetically separated from other modes in the system. When polariton lasing occurs in the system, we find an enhanced spatial coherence compared to regular waveguides, which is robust in the presence of disorder.
A search for molecules in damped Lyman-alpha absorbers occulting millimetre-loud quasars
Creators: name: Curran, S. J.
name: Murphy, M. T.
name: Webb, J. K.
name: Rantakyro, F.
name: Johansson, L. E. B.
name: Nikolic, S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used the SEST 15-metre and Onsala 20-metre telescopes to perform deep (r.m.s. >~ 30 mJy) integrations of various molecular rotational transitions towards damped Lyman-alpha absorption systems (DLAs) known to occult millimetre-loud quasars. We have observed 6 new systems and improved the existing limits for 11 transitions. These limits may be approaching the sensitivities required to detect new systems and we present a small number of candidate systems which we believe warrant further observation.
description: 7 pages, 1 PS figure, 4 tables. Accepted by A&A
Sensitivity of long periodic orbits of chaotic systems
Creators: name: Lasagna, Davide
Publisher: name: arXiv
Year: 2019
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The properties of long, numerically-determined periodic orbits of two low-dimensional chaotic systems, the Lorenz equations and the Kuramoto-Sivashinsky system in a minimal-domain configuration, are examined. The primary question is to establish whether the sensitivity of period averaged quantities with respect to parameter perturbations computed over long orbits can be used as a sufficiently good proxy for the response of the chaotic state to finite-amplitude parameter perturbations. To address this question, an inventory of thousands of orbits at least two orders of magnitude longer than the shortest admissible cycles is constructed. The expectation of period averages, Floquet exponents and sensitivities over such set is then obtained. It is shown that all these quantities converge to a limiting value as the orbit period is increased. However, while period averages and Floquet exponents appear to converge to analogous quantities computed from chaotic trajectories, the limiting value of the sensitivity is not necessarily consistent with the response of the chaotic state, similar to observations made with other shadowing algorithms.
MOESM2 of Epidemiology and control of bovine ephemeral fever
Creators: name: Walker, Peter
name: Klement, Eyal
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Inorganic Chemistry
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Isolate details and Genbank accession numbers of the BEFV sequences used for phylogenetic analysis. Table providing isolation details (number/country/location/date) of viruses and Genbank accession numbers of L protein sequences that were used for the phylogenetic analysis displayed in FigureÂ 4.
Efficient High-Energy Photon Production in the Supercritical QED Regime
Creators: name: Tamburini, Matteo
name: Meuren, Sebastian
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: When dense high-energy lepton bunches collide, the beam particles can experience rest-frame electromagnetic fields which greatly exceed the QED critical one. Here it is demonstrated that beamstrahlung efficiently converts lepton energy to high-energy photons in this so-called supercritical QED regime, as the single-photon emission spectrum exhibits a pronounced peak close to the initial lepton energy. It is also shown that the observation of this high-energy peak in the photon spectrum requires one to mitigate multiple photon emissions during the interaction. Otherwise, the photon recoil induces strong correlations between subsequent emissions which soften the photon spectrum and suppress the peak. The high-energy peak in the photon spectrum constitutes a unique observable of photon emission in the supercritical QED regime, and provides decisive advantages for the realization of an efficient multi-TeV laserless gamma-gamma collider based on electron-electron collisions.
description: 11 pages, 4 figures. Published version is Open Access
Modified celestial amplitude in Einstein gravity
Creators: name: Banerjee, Shamik
name: Ghosh, Sudip
name: Pandey, Pranjal
name: Saha, Arnab Priya
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we evaluate the modified celestial amplitude for gravitons and gluons, as defined in arXiv:1801.10171[hep-th]. We find that the modified (tree) amplitude is finite for gravitons in Einstein gravity. The modified amplitude behaves like correlation function of operators inserted at various points of null-infinity in the Minkowski space-time. Therefore, unlike the standard celestial amplitudes, these are three dimensional objects. We also show that this amplitude admits conformal soft factorization recently studied in the literature.
description: 18 pages, Latex; reference added; typos corrected
The Bisognano-Wichmann property for asymptotically complete massless QFT
Creators: name: Dybalski, Wojciech
name: Morinelli, Vincenzo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Group Theory (math.GR)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81T05, 81U99, 22D30

description: We prove the Bisognano-Wichmann property for asymptotically complete Haag-Kastler theories of massless particles. These particles should either be scalar or appear as a direct sum of two opposite integer helicities, thus, e.g., photons are covered. The argument relies on a modularity condition formulated recently by one of us (VM) and on the Buchholz' scattering theory of massless particles.
description: 30 pages
MOESM1 of The Tree Drought Emission MONitor (Tree DEMON), an innovative system for assessing biogenic volatile organic compounds emission from plants
Creators: name: LĂźpke, Marvin
name: Steinbrecher, Rainer
name: Leuchner, Michael
name: Menzel, Annette
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Medicine
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Additional file 1: Figure S1. FID chromatograms of empty trap, tubes, and gas standards. Figure S2. FID chromatograms of internal gas standard and empty chambers. Figure S3. Gas mixing test. Figure S4. Chamber exchange rates and chamber/system tightness test with CO2. Figure S5. Cluster analysis diagnostics. Equation S1. General standardization algorithm. Equation S2. Leaf temperature correction term. Equation S3. Light correction term.
AN IMPORT DEMAND FUNCTION FOR FOODGRAINS: SOME RESULTS FROM BANGLADESH DATA
Creators: name: Hossain, Md. Akhtar
name: Hossain, Md. Akhtar
Publisher: name: Unknown
Year: 1987
Subjects: Research Methods/ Statistical Methods

description: This paper estimates an import demand function for foodgrains into Bangladesh during the period 1974 (I)-1985(I). An important finding is that the income elasticity of the demand for imports of foodgrains exceeds unity. The empirical results also suggest that in Bangladesh, the imports of foodgrains are price inelastic. A dynamic simulation test suggests a good-fit of the import demand function and importantly, the estimated equation is able to track the wide fluctuations of the imports of foodgrauis reasonably well.
Magnetism in a lattice of spinor Bose condensates
Creators: name: Gross, Kevin
name: Search, Chris P.
name: Pu, Han
name: Zhang, Weiping
name: Meystre, Pierre
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the ground state magnetic properties of ferromagnetic spinor Bose-Einstein condensates confined in a deep optical lattices. In the Mott insulator regime, the ``mini-condensates'' at each lattice site behave as mesoscopic spin magnets that can interact with neighboring sites through both the static magnetic dipolar interaction and the light-induced dipolar interaction. We show that such an array of spin magnets can undergo a ferromagnetic or anti-ferromagnetic phase transition under the magnetic dipolar interaction depending on the dimension of the confining optical lattice. The ground-state spin configurations and related magnetic properties are investigated in detail.
HireVAE: An Online and Adaptive Factor Model Based on Hierarchical and Regime-Switch VAE
Creators: name: Wei, Zikai
name: Rao, Anyi
name: Dai, Bo
name: Lin, Dahua
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Portfolio Management (q-fin.PM)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: Factor model is a fundamental investment tool in quantitative investment, which can be empowered by deep learning to become more flexible and efficient in practical complicated investing situations. However, it is still an open question to build a factor model that can conduct stock prediction in an online and adaptive setting, where the model can adapt itself to match the current market regime identified based on only point-in-time market information. To tackle this problem, we propose the first deep learning based online and adaptive factor model, HireVAE, at the core of which is a hierarchical latent space that embeds the underlying relationship between the market situation and stock-wise latent factors, so that HireVAE can effectively estimate useful latent factors given only historical market information and subsequently predict accurate stock returns. Across four commonly used real stock market benchmarks, the proposed HireVAE demonstrate superior performance in terms of active returns over previous methods, verifying the potential of such online and adaptive factor model.
description: Accepted to IJCAI 2023