cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analytic Results for a Flat Universe Dominated by Dust and Dark Energy
Creators: name: Gruppuso, A.
name: Finelli, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find the solution for the scale factor in a flat Universe driven by dust plus a component characterized by a constant parameter of state which dominates in the asymptotic future. We also present an analytic formula (in terms of hypergeometric functions) for the past light cone in such a universe. As applications of this result, we give analytic expressions for the Luminosity Distance and for the Acoustic Scale, where the latter determines the peaks positions in the pattern of CMB anisotropies.
description: 6 pages,6 figures. One reference added, minor changes to match version published in Physical Review D
Magnon Landau Levels and Spin Responses in Antiferromagnets
Creators: name: Li, Bo
name: Kovalev, Alexey A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study gauge fields produced by gradients of the Dzyaloshinskii-Moriya interaction and propose a model of AFM topological insulator of magnons. In the long wavelength limit, the Landau levels induced by the inhomogeneous Dzyaloshinskii-Moriya interaction exhibit relativistic physics described by the Klein-Gordon equation. The spin Nernst response due to the formation of magnonic Landau levels is compared to similar topological responses in skyrmion and vortex-antivortex crystal phases of AFM insulators. Our studies show that AFM insulators exhibit rich physics associated with topological magnon excitations.
description: 6 pages, 4 figures
Present Status and Economics of Organic Farming in the District of Udham Singh Nagar in Uttaranchal
Creators: name: Singh, Jitendra
name: Singh, G.P.
name: Rajkishor
name: Singh, Jitendra
name: Singh, G.P.
name: Rajkishor
Publisher: name: Unknown
Year: 2006
Subjects: Agricultural and Food Policy

description: The study has reported the present scenario about adoption and awareness of organic farming as well as costs and returns of major crops grown under organic farming vis-à-vis non-organic farming on a sample of 90 farmers (45 organic and 45 non-organic) selected from the Kashipur block of Udham Singh Nagar district of Uttaranchal during the year 2004- 05. The study has revealed a fairly good adoption status with 36.51 per cent of sample farmers engaged in organic farming. Cost of cultivation for organic paddy over cost A1 and cost C3 has been found as Rs 18786/ha and Rs 31651/ha and for non-organic paddy as Rs 19106/ha and Rs 35947/ ha. The yields from organic and non-organic paddy have been found as 26.86 q/ha and 32.74 q/ha, respectively. However, farmers could realize relatively higher prices for organic (Rs 1380/q) than non-organic (Rs1161/ q) paddy. Net returns over cost A1 and cost C3 from organic and nonorganic paddy have been found as Rs 20144/ha and Rs 7279/ha and Rs 21323/ha and Rs 4483/ha, respectively. For organic and non-organic wheat, cost over A1 and C3 have been recorded as Rs 8653/ha and 17752/ha and Rs 12220/ha and Rs 22932/ha, respectively. The wheat yield has been found to be lower for organic (19.85 q/ha) than non-organic (28.12 q/ha) farming. The difference between prices of organic (Rs 875.16 /q) and nonorganic (Rs 780.24 /q) wheat has not been much wide. Hence, organic paddy has been found more profitable than organic wheat. The study has suggested organization of training programmes to generate awareness regarding organic farming. Lack of inputs being a general problem among producers, government should ensure timely delivery of quality inputs at reasonable costs. Also, to encourage organic farming, market support system need be strengthened.
AEGCN: An Autoencoder-Constrained Graph Convolutional Network
Creators: name: Ma, Mingyuan
name: Na, Sen
name: Wang, Hongyu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We propose a novel neural network architecture, called autoencoder-constrained graph convolutional network, to solve node classification task on graph domains. As suggested by its name, the core of this model is a convolutional network operating directly on graphs, whose hidden layers are constrained by an autoencoder. Comparing with vanilla graph convolutional networks, the autoencoder step is added to reduce the information loss brought by Laplacian smoothing. We consider applying our model on both homogeneous graphs and heterogeneous graphs. For homogeneous graphs, the autoencoder approximates to the adjacency matrix of the input graph by taking hidden layer representations as encoder and another one-layer graph convolutional network as decoder. For heterogeneous graphs, since there are multiple adjacency matrices corresponding to different types of edges, the autoencoder approximates to the feature matrix of the input graph instead, and changes the encoder to a particularly designed multi-channel pre-processing network with two layers. In both cases, the error occurred in the autoencoder approximation goes to the penalty term in the loss function. In extensive experiments on citation networks and other heterogeneous graphs, we demonstrate that adding autoencoder constraints significantly improves the performance of graph convolutional networks. Further, we notice that our technique can be applied on graph attention network to improve the performance as well. This reveals the wide applicability of the proposed autoencoder technique.
description: 23 pages, 4 figures
A q-deformed nonlinear map
Creators: name: Jaganathan, Ramaswamy
name: Sinha, Sudeshna
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: A scheme of q-deformation of nonlinear maps is introduced. As a specific example, a q-deformation procedure related to the Tsallis q-exponential function is applied to the logistic map. Compared to the canonical logistic map, the resulting family of q-logistic maps is shown to have a wider spectrum of interesting behaviours, including the co-existence of attractors -- a phenomenon rare in one dimensional maps.
description: 17 pages, 19 figures
4894: Various Propaganda Postcards
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Thirty-nine war propaganda postcards, collected later in the century.
4896: Celebrity Postcards
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: 12 double-sided photograph postcards, no handwriting, depicting various generals and the King of Belgium.
Bayesian Approach to Probabilistic Design Space Characterization: A Nested Sampling Strategy
Creators: name: Kusumo, Kennedy P.
name: Gomoescu, Lucian
name: Paulen, Radoslav
name: Munoz, Salvador Garcia
name: Pantelides, Constantinos C.
name: Shah, Nilay
name: Chachuat, Benoit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Quality by design in pharmaceutical manufacturing hinges on computational methods and tools that are capable of accurate quantitative prediction of the design space. This paper investigates Bayesian approaches to design space characterization, which determine a feasibility probability that can be used as a measure of reliability and risk by the practitioner. An adaptation of nested sampling---a Monte Carlo technique introduced to compute Bayesian evidence---is presented. The nested sampling algorithm maintains a given set of live points through regions with increasing probability feasibility until reaching a desired reliability level. It furthermore leverages efficient strategies from Bayesian statistics for generating replacement proposals during the search. Features and advantages of this algorithm are demonstrated by means of a simple numerical example and two industrial case studies. It is shown that nested sampling can outperform conventional Monte Carlo sampling and be competitive with flexibility-based optimization techniques in low-dimensional design space problems. Practical aspects of exploiting the sampled design space to reconstruct a feasibility probability map using machine learning techniques are also discussed and illustrated. Finally, the effectiveness of nested sampling is demonstrated on a higher-dimensional problem, in the presence of a complex dynamic model and significant model uncertainty.
Coupled-mode theory for spatial gap solitons in optically-induced lattices
Creators: name: Malomed, Boris A.
name: Ostrovskaya, Elena A.
name: Kivshar, Yuri S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We develop a coupled-mode theory for spatial gap solitons in the one-dimensional photonic lattices induced by interfering optical beams in a nonlinear photorefractive crystal. We derive a novel system of coupled-mode equations for two counter-propagating probe waves, and find its analytical solutions for stationary gap solitons. We also predict the existence of moving (or tilted) gap solitons and study numerically soliton collisions.
description: 3 pages, submitted to Optics Letters
Organic Sugarcane Farming for Development of Sustainable Agriculture in Maharashtra
Creators: name: Kshirsagar, K.G.
name: Kshirsagar, K.G.
Publisher: name: Unknown
Year: 2006
Subjects: Agricultural and Food Policy

description: The economics of organic sugarcane farming (OSF) and inorganic sugarcane farming (ISF) have been examined and the OSF has been assessed with respect to important sustainability indicators such as conservation of soil, water, power and farmers’ economic well-being and livelihood security. The study is based on data for 2004-05 collected from 30 certified OSF and 30 ISF sample households from the Jalgaon district of Maharashtra. The OSF households have been found younger and more educated having larger landholdings and better resources. The OSF is labour-intensive, but its cost of cultivation is lower due to savings on chemical fertilizers, irrigation, seeds and agrochemicals. The yield on OSF has been reported lower but it is more than compensated by the price premium received and the yield and profit stability observed on the OSF. In addition, the OSF has been found superior in terms of economic well-being and livelihood security of the farmer. The study has revealed that OSF has enormous potential for improving sustainability of agriculture and has suggested that organic farming should receive prime attention from all stakeholders to realize its full potential in increasing and providing the much sought after sustainability to agriculture.
Potlatch, Idaho : a case study of a single-industry town and the factors which affect its development
Creators: name: Loeb, Emily A.
Publisher: name: University of British Columbia
Year: 2009

description: Potlatch is a town reminiscent of many single-industry towns. Created by the Weyerhaeuser syndicate in 1905, the town experienced significant changes throughout the twentieth century. In 1952, Potlatch transformed from being a company town into an incorporated town in Idaho. In 1983, the town's main employer, the Potlatch Corporation, closed its mill and since that time the town has changed from a mill town to a bedroom community. For the last twenty years, Potlatchites have been adjusting to this new economy and community identity. Using ethnographic and qualitative research, this thesis shows that Potlatch has been able to survive as a community, not a timber community. By analyzing the community's history, placing the town and its development in a larger social context, and identifying the factors which influence the community's response to mill closure, we can understand why this community has been able to survive, yet not thrive, post mill closure. Five factors were determined to affect Potlatch's response to mill closure. The factors are external and internal perceptions of the town, the citizen's social roles, regional politics and behavior, the community's history, and the town's geographical context. In this analysis ethnographic research and economic, geographical, and sociological theories are synthesized to show how one town represents theories of economic and social development. This thesis is not a blue print which can be applied to other communities to better comprehend how a particular place has or will respond to social and economic change. Rather, this thesis shows that a micro lens is required to understand the effects industrial closure has on a particular town. Potlatch is used as a case study to explain why one community has been able to survive despite the fact that it appears it should fail. Using this case study, in combination with other case studies, can help theorists understand why some communities succeed and others fail after industry abandonment. In so doing, the many towns currently facing industry closure can be more prepared and understand what they need to do in order to respond in a proactive and productive way to industry restructuring and closure.
Constraints in Adoption of Bio-input Usage in Cotton Cultivation
Creators: name: Sundaravaradarajan, K.R.
name: Jahanmohan, K.R.
name: Swaminathan, L.P.
name: Sundaravaradarajan, K.R.
name: Jahanmohan, K.R.
name: Swaminathan, L.P.
Publisher: name: Unknown
Year: 2006
Subjects: Agricultural and Food Policy

description: Constraints in adoption of biological inputs usage in cotton cultivation of Tamil Nadu have been identified. Among the reasons for non-adoption of bio-inputs, long-term practice has been considered as the important factor by the non-adopters (mean score, 67.18) and lack of adequate extension as the second important factor (mean score, 62.15). The probability of adoption of bio-inputs has been estimated by the multinominal logit model which has been found significant at one per cent level, based on the log-likelihood ratio test. The model has correctly predicted 78 per cent of the adopters and non-adopters. The analysis has indicated that the farmers’ perceptional characteristics are positively and significantly related to the adoption of bio-inputs, whereas storage and handling is negatively related to the adoption. Among the suggestions for enhanced bio-inputs usage, extension of subsidy has been considered as the prime suggestion by the farmers (mean score, 66.21). Cotton crop has inelastic calendar of operations, and the pest management operations are highly time bound and any delay in the availability of biological inputs would seriously hamper its adoption. Hence, the timely availability has been regarded as the second important suggestion by the farmers (mean score, 63.75).
A survey of spatially and temporally resolved radio frequency interference in the FM band at the Murchison Radio-astronomy Observatory
Creators: name: Tingay, Steven
name: Sokolowski, Marcin
name: Wayth, Randall
name: Ung, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present the first survey of radio frequency interference (RFI) at the future site of the low frequency Square Kilometre Array (SKA), the Murchison Radio-astronomy Observatory (MRO), that both temporally and spatially resolves the RFI. The survey is conducted in a 1 MHz frequency range within the FM band, designed to encompass the closest and strongest FM transmitters to the MRO (located in Geraldton, approximately 300 km distant). Conducted over approximately three days using the second iteration of the Engineering Development Array in an all-sky imaging mode, we find a range of RFI signals. We are able to categorise the signals into: those received directly from the transmitters, from their horizon locations; reflections from aircraft (occupying approximately 13% of the observation duration); reflections from objects in Earth orbit; and reflections from meteor ionisation trails. In total we analyse 33,994 images at 7.92 s time resolution in both polarisations with angular resolution of approximately 3.5 deg., detecting approximately forty thousand RFI events. This detailed breakdown of RFI in the MRO environment will enable future detailed analyses of the likely impacts of RFI on key science at low radio frequencies with the SKA.
description: Accepted for publication in PASA. 15 pages, 16 figures
Additional file 7 of Transcriptional signatures of participant-derived neural progenitor cells and neurons implicate altered Wnt signaling in Phelan-McDermid syndrome and autism
Creators: name: Breen, Michael S.
name: Browne, Andrew
name: Hoffman, Gabriel E.
name: Stathopoulos, Sofia
name: Brennand, Kristen
name: Buxbaum, Joseph D.
name: Drapeau, Elodie
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 7: Figure S7. GO semantic similarity and incorporating cell type frequencies for differential expression. GO semantic similarity analysis was applied to examine shared/unique gene content among significantly under-expressed GO terms in (A) hiPSC-NPCs and (B) hiPSC-neurons. GO terms were then clustered based on ward and Euclidean distance and Ward’s clustering. The concordance of genome-wide PMS-associated log2 fold-changes were evaluated comparing two models: i) one model adjusting for sequencing batch, biological sex, RIN and individual donor as a repeated measure on the y-axis; and ii) a second model adjusting for the same factors plus predicted excitatory neuron cell type composition on the x-axis. Concordance was examined for both (C) hiPSC-NPCs and (D) hiPSC-neurons.
Role of strong correlation in the recent ARPES experiments for cuprate superconductors
Creators: name: Yunoki, S.
name: Dagotto, E.
name: Sorella, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Motivated by recent photoemission experiments on cuprates, the low-lying excitations of a strongly correlated superconducting state are studied numerically. It is observed that along the nodal direction these low-lying one-particle excitations show a linear momentum dependence for a wide range of excitation energies and, thus, they do not present a kink-like structure. The nodal Fermi velocity $v_{\rm F}$, as well as other observables, are systematically evaluated directly from the calculated dispersions, and they are found to compare well with experiments. It is argued that the parameter dependence of $v_{\rm F}$ is quantitatively explained by a simple picture of a renormalized Fermi velocity.
description: 5 pages, 4 figures, to be published in Phys. Rev. Lett
4898: Picture postcards from the front lines
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: War pictures/Battle pictures as postcards from The Daily Mail, and one issued by the YMCA
Proof of Cramer's rule with Dirac Delta Function
Creators: name: Ee, June-Haak
name: Lee, Jungil
name: Yu, Chaehyun
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics

description: We present a new proof of Cramer's rule by interpreting a system of linear equations as a transformation of $n$-dimensional Cartesian-coordinate vectors. To find the solution, we carry out the inverse transformation by convolving the original coordinate vector with Dirac delta functions and changing integration variables from the original coordinates to new coordinates. As a byproduct, we derive a generalized version of Cramer's rule that applies to a partial set of variables, which is new to our best knowledge. Our formulation of finding a transformation rule for multi-variable functions shall be particularly useful in changing a partial set of generalized coordinates of a mechanical system.
description: 7 pages, 1 figure, version published in Eur. J. Phys
Globalization of the Frozen Potato Industry
Creators: name: Makki, Shiva S.
name: Plummer, Charles
name: Makki, Shiva S.
name: Plummer, Charles
Publisher: name: Unknown
Year: 2005
Subjects: subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: french fries
subject: frozen potato products
subject: globalization
subject: quick service restaurants

description: This paper examines the globalization of the frozen potato industry, including the expansion of production and processing of potato products in the global market place, and future prospects for the industry. Driven largely by the rising popularity of Western style cuisine, frozen french fries and other frozen potato products have become global commodities generating billions of dollars in revenue worldwide. This study finds that with markets for frozen potato products in the United States and other developed countries hardly expanding, the growth of the frozen potato industry will critically depend on industry’s ability to sustain growth in developing economies.
Farm-Level Impacts of Banning Growth- Promoting Antibiotic Use in U.S. Pig Grower/Finisher Operations
Creators: name: Miller, Gay Y.
name: Liu, Xuanli
name: McNamara, Paul E.
name: Bush, Eric J.
name: Miller, Gay Y.
name: Liu, Xuanli
name: McNamara, Paul E.
name: Bush, Eric J.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Agricultural and Food Policy
subject: Health Economics and Policy
subject: Livestock Production/Industries
subject: antibiotics
subject: antimicrobial resistance
subject: growth promotion
subject: pigs
subject: production

description: Antibiotics have been used by pig producers for several decades, and are now used routinely. This study documents the current productivity and economic impacts of the use of antibiotics for growth promotion (AGP) by pig grower/finishers at the farm level. We evaluate the impacts of an AGP ban, and use of AGP by all pig grower/finishers for 61S90 days (a more production-efficient level), using data from the National Animal Health Monitoring System Swine 2000 Survey. Findings indicate that pig productivity improves with AGP. Relative to current use, an AGP ban would decrease producer profits by $1,400 per 1,020-head barn, and profits would increase by $1,992 for each grower/finisher barn when AGP is fed for 61 to 90 days. There is increasing concern about the use of antibiotics in animal production, partly because of the selection for antibiotic resistance. Thus, a careful examination of the value of AGP in pork production is warranted.
Uniqueness of RS2 type thick branes supported by a scalar field
Creators: name: Abdyrakhmanov, S. T.
name: Bronnikov, K. A.
name: Meierovich, B. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study thick brane world models as Z_2-symmetric domain walls supported by a scalar field with an arbitrary potential V(ϕ) in 5D general relativity. Under the global regularity requirement, such configurations (i) have always an AdS asymptotic far from the brane, (ii) are only possible if V(ϕ) has an alternating sign and (iii) V(ϕ) should satisfy a certain fine-tuning type equality. Thus a thick brane with any admissible V(ϕ) is a regularized version of the RS2 brane immersed in the AdS_5 bulk. The thin brane limit is realized in a universal manner by including an arbitrary thick brane model in a one-parameter family, where the parameter "a" is associated with brane thickness; the asymptotic value of V(ϕ) (related to Λ_5, the effective cosmological constant) remains a-independent. The problem of ordinary matter confinement on the brane is discussed for a test scalar field. Its stress-energy tensor is found to diverge at the AdS horizon for both thin and thick branes, making a serious problem for this class of brane world models.
description: 5 pages, no figures, gc style. Submitted to Proc. Int. Conf. Cosmion-2004
Decomposition of Variability in Farm Household Assets and Debt
Creators: name: Mishra, Ashok K.
name: El-Osta, Hisham S.
name: Mishra, Ashok K.
name: El-Osta, Hisham S.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Farm Management
subject: Financial Economics
subject: assets
subject: debt
subject: farm households
subject: variability
subject: variance decomposition

description: Farm families often hold large quantities of wealth and, like any other family, assess their financial progress by reviewing their net worth (or wealth) position periodically. Wealth has an impact on many decisions such as production, retirement, and succession of the farm. Households, in general, seek stability growth in wealth and, ideally, income as well. In the case of wealth, farm households will be better equipped to handle variability once the contributing sources are identified. This study measures how much of the variability in farm household assets and debt is attributed to the variability in farm and nonfarm sources of assets and farm and nonfarm sources of debt. Using a normalized variance decomposition approach and data from the Agricultural Resource Management Survey (ARMS), results show that origin of asset and debt variability differs with farm size and location of the farm household.
title: The rehearsal process of playwright/director Anthony Neilson
Creators: name: Cassidy, Gary
Publisher: name: University of Reading
Year: 2018

description: This thesis seeks to make a contribution to the emerging field of Rehearsal Studies. It is an analytical account of the rehearsal process of playwright and director Anthony Neilson, whose ‘noted process’ has been attracting critical attention. He begins his rehearsals with no script, and the actors are involved in a complex devising process. The thesis pays particular attention to the perspective of the actor within this collaborative environment. The thesis will focus on the rehearsals of one specific production at the Royal Court Theatre in London, Neilson’s 2013 play Narrative. This thesis utilises an unusual methodological approach, in that its findings have been reached via close analysis of filmed footage of the Narrative rehearsals, as well as interviews with the practitioners involved in the production, in addition to other actors who have collaborated with Neilson in the past. This thesis follows a tripartite structure which aims to uncover the particular properties of Neilson’s rehearsal methodology and the manner in which his approach critically engages with the issue of authorship, improvisation and the director-actor relationship. It also seeks to address issues such as how the investigation of rehearsals can contribute to our understanding of theatre practice. The thesis also demonstrates how research based on the analysis of filmed footage can facilitate a more in-depth enquiry of the subtextual components that are often of fundamental importance to rehearsals. In addition, the thesis will show how the often marginalised perspective of the actor has a productive and illuminating contribution to make to the understanding of Neilson’s process specifically, and the field of Rehearsal Studies more broadly.
Impact of Changes in Dietary Preferences on U.S. Retail Demand for Beef: Health Concerns and the Role of Media
Creators: name: Miljkovic, Dragan
name: Mostad, Daniel
name: Miljkovic, Dragan
name: Mostad, Daniel
Publisher: name: Unknown
Year: 2005
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: beef demand
subject: cointegration
subject: Granger causality
subject: health concerns
subject: media
subject: vector error correction

description: The objective of this study is twofold: first, to determine if, in the long run, health concerns affect the retail demand for beef in the United States via changes in consumer dietary preferences, and second, to establish if media coverage of popular diets (media frenzy) causes the change in retail demand for beef or if it simply reports the facts about the changes in consumer dietary preferences. Data used in the analysis are the quarterly retail demand index for beef and the number of newspaper articles and magazine features on low-fat/low-cholesterol and low-carb diets published in the United States between 1990:I and 2004:IV. Johansen’s (1991, 1995) cointegration method and vector error correction (VEC) model-based Granger causality test were used in the long-run and short-run analysis, respectively. The results indicate health concerns are an important demand shifter for beef in the long run. In the short run, the media serve as a trigger that will influence people to become followers of a certain diet.
Observation of R-Band Variability of L Dwarfs
Creators: name: Maiti, M.
name: Sengupta, S.
name: Parihar, P. S.
name: Anupama, G. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report, for the first time, photometric variability of L dwarfs in $R$ band. Out of three L1 dwarfs (2MASS 1300+19, 2MASS 1439+19, and 2MASS 1658+70) observed, we have detected R band variability in 2MASS 1300+19 and 2MASS 1439+19. The objects exhibit variability of amplitude ranging from 0.01 mag to 0.02 mag. Object 2MASS 1658+70, turns out to be non-variable in both $R$ and $I$ band. However, more observations are needed to infer its variability. No periodic behaviour in the variability is found from the two L1 dwarfs that are variable. All the three L1 dwarfs have either negligible or no $H_α$ activity. In the absence of any direct evidence for the presence of sufficiently strong magnetic field, the detection of polarization at the optical favors the presence of dust in the atmosphere of L dwarfs. We suggest that the observed $R$ band photometric variability is most likely due to atmospheric dust activity.
description: 13 pages (latex, aastex style) including 3 eps figures. Accepted for publication in The Astrophysical Journal Letters
4693: Peace Bonfire
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Tom Wain celebrated the armistice with others in Bretby (a village near Burton-On-Trent) by creating a bonfire. Tom was a gamekeeper, who the family don't think served in the war.
Additional file 6 of Transcriptional signatures of participant-derived neural progenitor cells and neurons implicate altered Wnt signaling in Phelan-McDermid syndrome and autism
Creators: name: Breen, Michael S.
name: Browne, Andrew
name: Hoffman, Gabriel E.
name: Stathopoulos, Sofia
name: Brennand, Kristen
name: Buxbaum, Joseph D.
name: Drapeau, Elodie
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 6: Figure S6. Variance explained by SHANK3 deletion size. (A) All genes affected by chr22 deletion in PMS proband from family 6 (4.9Mb deletion) are similarly affected in PMS proband from family 7 (6.9Mb deletion). (B) The linear mixed model framework of the varianceParition R package was used to compute the percentage of gene expression variance explained by SHANK3 deletion size in hiPSC-NPCs and hiPSC-neurons. (C) Genes with variance explained >50% by deletion size were examined for chromosomal enrichment, and strong enrichment for chromosome 22 was observed. The vertical black line indicates -log10 P-value < 0.05. Fifty unique genes were identified that varied by deletion size and mapped to chromosome 22, which were plotted on a heatmap using average expression values across all technical replicates for (D) hiPSC-NPCs and (E) hiPSC-neuronal samples. SHANK3 deletion sizes are displayed on the x-axis, and correspond to those present in Table 1.
Nonlinear dynamics of the fishbone-induced alpha transport on ITER
Creators: name: Brochard, G.
name: Dumont, R.
name: Lütjens, H.
name: Garbet, X.
name: Nicolas, T.
name: Maget, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The fishbone-induced transport of alpha particles is computed for the ITER 15 MA baseline scenario, using the nonlinear hybrid Kinetic-MHD code XTOR-K. Two limit cases have been studied, in order to analyse the characteristic regimes of the fishbone instability : the weak kinetic drive limit and the strong kinetic drive limit. In both those regimes, characteristic features of the n = m = 1 fishbone instability are recovered, such as a strong up/down-chirping of the mode frequency, associated with a resonant transport of trapped and passing alpha particles. The effects of the n = m = 0 sheared poloidal and toroidal plasma rotation are taken into account in the simulations. The shear is not negligible, which implies that the fishbone mode frequency has a radial dependency, impacting the wave-particle resonance condition. Phase space hole and clump structures are observed in both nonlinear regimes, centered around the precessional and passing resonances. These structures remains attached to the resonances as the different mode frequencies chirp up and down. In the nonlinear phase, the transport of individual resonant trapped particles is identified to be linked to mode-particle synchronization. On this basis, a partial mechanism for the nonlinear coupling between particle transport and mode dominant down-chirping is proposed. The overall transport of alpha particles inside out the q = 1 surface is of order 2-5% of the initial population between the simulations. The loss of alpha power is found to be directly equal to the loss of alpha particles.
Unconventional metal-insulator transition in two dimensions
Creators: name: Capello, Manuela
name: Becca, Federico
name: Yunoki, Seiji
name: Sorella, Sandro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show, by using a correlated Jastrow wave function and a mapping onto a classical model, that the two-dimensional Mott transition in a simple half-filled one-band model can be unconventional and very similar to the binding-unbinding Kosterlitz-Thouless transition of vortices and anti-vortices, here identified by empty and doubly occupied sites. Within this framework, electrons strongly interact with collective plasmon excitations that induce anomalous critical properties on both sides of the transition. In particular, the insulating phase is characterized by a singular power law behavior in the photoemission spectrum, that can be continuously connected to the fully-projected insulating state, relevant to strongly correlated low-energy models.
description: Reviewed and enlarged version, 6 pages, 7 figures
Additional file 8 of Transcriptional signatures of participant-derived neural progenitor cells and neurons implicate altered Wnt signaling in Phelan-McDermid syndrome and autism
Creators: name: Breen, Michael S.
name: Browne, Andrew
name: Hoffman, Gabriel E.
name: Stathopoulos, Sofia
name: Brennand, Kristen
name: Buxbaum, Joseph D.
name: Drapeau, Elodie
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 8: Figure S8. Protein-protein interaction network. Direct protein–protein interaction network of differentially expressed genes identified in (A) hiPSC-NPCs and (B) hiPSC-neurons. Nodes are scaled by their degree of overall connectivity in the network.
Non-perturbative flow equations from continuous unitary transformations
Creators: name: Kriel, J. N.
name: Morozov, A. Y.
name: Scholtz, F. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use a novel parameterization of the flowing Hamiltonian to show that the flow equations based on continuous unitary transformations, as proposed by Wegner, can be implemented through a nonlinear partial differential equation involving one flow parameter and two system specific auxiliary variables. The implementation is non-perturbative as the partial differential equation involves a systematic expansion in fluctuations, controlled by the size of the system, rather than the coupling constant. The method is applied to the Lipkin model to construct a mapping which maps the non-interacting spectrum onto the interacting spectrum to a very high accuracy. This function is universal in the sense that the full spectrum for any (large) number of particles can be obtained from it. In a similar way expectation values for a large class of operators can be obtained, which also makes it possible to probe the stucture of the eigenstates.
description: 24 pages, 13 figures
Shock de precios y vulnerabilidad alimentaria de los hogares peruanos
Creators: name: Zegarra Mendez, Eduardo
name: Tuesta, Jorge
name: Zegarra Mendez, Eduardo
name: Tuesta, Jorge
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Alimentos
subject: Consumo de alimentos
subject: Precios
subject: Deficiencia calorica
subject: Peru
subject: Food
subject: Food consumption
subject: Calorie deficiency
subject: Prices

description: El presente estudio está orientado a cuantificar los efectos económicos del súbito aumento de los precios de alimentos en los hogares peruanos en el período 2007-2008 e identificar a los hogares en situación de vulnerabilidad alimentaria. El estudio se enmarca en una serie de recientes esfuerzos por cuantificar los efectos económicos del pronunciado shock de precios de alimentos ocurrido entre el 2007 y el tercer trimestre del 2008 en diversos países. A diferencia de otros estudios recientes que se centran en pocos alimentos y efectos sobre el gasto alimentario y las líneas de pobreza, en este trabajo usamos el déficit calórico de las familias como indicador central para el análisis del impacto del shock de precios en el caso peruano. Estimamos funciones de demanda de un conjunto de 14 alimentos que significan 76% del consumo calórico de las familias peruanas con un modelo Tobit de elasticidades precio e ingreso variables con respecto al gasto, lo cual permite estimar respuestas diversas por grupos socioeconómicos y, por ende, identificar efectos heterogéneos de acuerdo con el nivel de gasto de los hogares.
4695: Letter to the headmaster
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Henry wrote to Mr Robinson, the headmaster of his old school.
Kinetic simulation of nonrelativistic perpendicular shocks of young supernova remnants. IV. Electron heating
Creators: name: Bohdan, Artem
name: Pohl, Martin
name: Niemiec, Jacek
name: Morris, Paul
name: Matsumoto, Yosuke
name: Amano, Takanobu
name: Hoshino, Masahiro
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: High Mach number collisionless shocks are found in planetary systems and supernova remnants (SNRs). Electrons are heated at these shocks to the temperature well above the Rankine-Hugoniot prediction. However processes responsible for electron heating are still not well understood. We use a set of large-scale Particle-In-Cell simulations of non-relativistic shocks in high Mach number regime to clarify the electron heating processes. The physics of these shocks is defined by ion reflection at the shock ramp. Further interaction of the reflected ions and the upstream plasma excites electrostatic Buneman and two-stream ion-ion Weibel instabilities. Electrons are heated via shock surfing acceleration, the shock potential, magnetic reconnection, stochastic Fermi scattering and the shock compression. The main contributor is the shock potential. Magnetic field lines are tangled due to the Weibel instability, which allows the parallel electron heating by the shock potential. The constrained model of the electron heating predicts the ion-to-electron temperature ratio within observed values at SNR shocks and in Saturn's bow shock.
description: 10 pages, 3 figures
A wide-field photometric study of the globular cluster system of NGC 4636
Creators: name: Dirsch, Boris
name: Schuberth, Ylva
name: Richtler, Tom
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the unusually rich cluster system of NGC4636 with wide-field Washington photometry. The globular cluster luminosity function can be followed roughly 1 mag beyond the turn-over magnitude. This corresponds to a distance modulus of m-M=31.24+-0.17, 0.4 mag larger than the distance determined from surface brightness fluctuations. The high specific frequency is confirmed, yet the exact value remains uncertain because of the uncertain distance: it varies between 5.6+-1.2 and 8.9+-1.2. The globular cluster system has a clearly bimodal color distribution. The color peak positions show no radial dependence and are in good agreement with the values found for other galaxies studied in the same filter system. However, a luminosity dependence is found: brighter clusters with an ``intermediate'' color exist. The clusters exhibit a shallow radial distribution within 7'.Within the same radial interval, the galaxy light has a distinctly steeper profile. Because of the difference in the cluster and light distribution the specific frequency increases considerably with radius. At 7' and 9' the density profiles of the red and blue clusters, respectively, change strongly which indicates that we reach the outer rim of the cluster system at approximately 11'. This feature is seen for the first time in a globular cluster system. While the radial distribution of the cluster and field populations are rather different, this is not true for the ellipticity of the system: the elongation as well as the position angle of the cluster system agree well with the galaxy light. We compare the radial distribution of globular clusters with the light profiles for a sample of elliptical galaxies. The difference observed in NGC 4636 is typical of an elliptical galaxy of this luminosity.
description: Accepted for publication in A&A, 16 pages, 15 figures
Additional file 5 of Transcriptional signatures of participant-derived neural progenitor cells and neurons implicate altered Wnt signaling in Phelan-McDermid syndrome and autism
Creators: name: Breen, Michael S.
name: Browne, Andrew
name: Hoffman, Gabriel E.
name: Stathopoulos, Sofia
name: Brennand, Kristen
name: Buxbaum, Joseph D.
name: Drapeau, Elodie
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Figure S5. Variance explained by technical factors. The linear mixed model framework of the varianceParition R package was used to compute the percentage of gene expression variance explained by multiple biological and technical factors for (A) hiPSC-NPCs and (B) hiPSC-neurons. (C) The variance explained by the total number of weeks hiPSC-neurons spent in culture was further evaluated by principal component analysis, and each unique shape reflects one specific donor.
IR Renormalisation of General Effective Actions and Hawking Flux in 2D Gravity Theories
Creators: name: Hofmann, D.
name: Kummer, W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The infrared problem of the effective action in 2D is discussed in the framework of the Covariant Perturbation Theory. The divergences are regularised by a mass and the leading term is evaluated up to the third order of perturbation theory. A summation scheme is proposed which isolates the divergences from the finite part of the series and results in a single term. The latter turns out to be equivalent to the coupling to a certain classical external field. This suggests a renormalisation by factorisation.
description: 25 pages
Spectral energy dynamics in magnetohydrodynamic turbulence
Creators: name: Mueller, Wolf-Christian
name: Grappin, Roland
Publisher: name: arXiv
Year: 2005
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Spectral direct numerical simulations of incompressible MHD turbulence at a resolution of up to $1024^3$ collocation points are presented for a statistically isotropic system as well as for a setup with an imposed strong mean magnetic field. The spectra of residual energy, $E_k^\mathrm{R}=|E_k^\mathrm{M}-E_k^\mathrm{K}|$, and total energy, $E_k=E^\mathrm{K}_k+E^\mathrm{M}_k$, are observed to scale self-similarly in the inertial range as $E_k^\mathrm{R}\sim k^{-7/3}$, $E_k\sim k^{-5/3}$ (isotropic case) and $E^\mathrm{R}_{k_\perp}\sim k_\perp^{-2}$, $E_{k_\perp}\sim k_\perp^{-3/2}$ (anisotropic case, perpendicular to the mean field direction). A model of dynamic equilibrium between kinetic and magnetic energy, based on the corresponding evolution equations of the eddy-damped quasi-normal Markovian (EDQNM) closure approximation, explains the findings. The assumed interplay of turbulent dynamo and Alfvén effect yields $E_k^\mathrm{R}\sim k E^2_k$ which is confirmed by the simulations.
description: accepted for publication by PRL