cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
EFEITOS DAS MUDANÇAS CLIMÁTICAS NO SETOR AGRÍCOLA DO ESTADO DE MINAS GERAIS
Creators: name: Cunha, Denis Antonio Da
name: Reis, Darline Ingrid Dos
name: Cunha, Denis Antonio Da
name: Reis, Darline Ingrid Dos
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Environmental Economics and Policy
subject: Climate Change
subject: Agriculture
subject: Ricardian Model
subject: Minas Gerais

description: This paper aimed to analyze the effects of climate change on the agricultural sector of Minas Gerais. Methodologically, we used the Ricardian model, which allowed us to estimate how changes in climate, in different counties, may affect the farmers’ land values. The climate change projections were based on forecasts of temperature and precipitation (A1B and A2 scenarios) of Intergovernmental Panel on Climate Change (IPCC). In all simulation periods, on average, the results indicated that the land values may have a small increase. However, this result should not give the false impression that agriculture in Minas Gerais would not be adversely affected by climate change. When we consider the regional results, approximately 60% of the counties may suffer high losses, and these may reach R$24 million in 2020. Therefore, policymakers should closely observe the impact assessments in order to identify the most effective adaptation options. It will be necessary to program local and decentralized actions, allowing more flexibility and more beneficial results locally.
5010: James Fenton
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: James Fenton served during WW1 at some point it would appear that he was in hospital.
DEGRADAÇÃO AMBIENTAL E CRESCIMENTO ECONÔMICO: A CURVA DE KUZNETS AMBIENTAL PARA O CERRADO
Creators: name: Colusso, Maria Virgínia Da Silva
name: Parré, José Luiz
name: Almeida, Eduardo Simões De
name: Colusso, Maria Virgínia Da Silva
name: Parré, José Luiz
name: Almeida, Eduardo Simões De
Publisher: name: Unknown
Year: 2012
Subjects: subject: Environmental Economics and Policy
subject: deforestation
subject: Environmental Kuznets Curve
subject: spatial econometrics

description: This paper aims to verify the existence of relationship between environmental degradation and economic growth, based on the Environmental Kuznets Curve hypothesis for the Brazilian Cerrado in 2008. The deforested area of the Cerrado’s municipalities was defined as dependent variable and as explanatory variables the GDP per capita and its quadratic and cubic form, population density, the planted area and the cattle. Spatial econometric methods were used. The results show that, initially, the growth of per capita income helps to reduce deforestation in the region. However, the continuous increase of per capita GDP leads to deforestation to grow back.
Four essays on supply chain management
Creators: name: Yin, Shuya
Publisher: name: University of British Columbia
Year: 2009

description: This thesis, which consists of four separate essays, employs decentralized newsvendor models to address some critical problems in the context of decentralized retail supply chains. Essay 1 examines the effectiveness of returns policies in a decentralized newsvendor model, in which a manufacturer sells a product to an independent retailer facing uncertain demand and the retail price is endogenously determined by the retailer. This model will be referred to as the PD-hewsvendor model. Essay 2 investigates the effect of sequential commitment in the decentralized PD-newsvendor model with buybacks. Sequential commitment allows the self-profit maximizing parties to commit to the contract parameters (e.g., wholesale price, retail price, buyback price and order quantity) sequentially and alternately, and we investigate its effect on the equilibrium profits of the channel and its members. Essay 3 analyzes the effect of price and order postponement in the PD-newsvendor model, possibly with a buyback option. Such postponement strategies can be used by a retailer by delaying his operational decisions (order quantity and retail price) until after demand uncertainty is observed. Essay 4 considers a supply .chain wherein an assembler buys complementary components (or products) from n suppliers, assembles the n components into a final product, and sells it at a fixed retail price over a single selling season. We analyze two contracting systems between the assembler and the suppliers: push and pull. In the push system, the suppliers initiate the process by offering their wholesale prices to the assembler, and the assembler then orders from the suppliers well in advance of the selling season. In the pull system, the assembler first sets the wholesale prices for the different suppliers, and then the suppliers decide how much to produce and bear all of the inventory risk. In both systems, suppliers can form alliances among themselves or act independently.
A POBREZA NO BRASIL E AS ESTRATÉGIAS DE SUPERAÇÃO
Creators: name: Santos, Luciano Balbino Dos
name: Miranda, Rogério Boueri
name: Moreira, Tito Belchior Silva
name: Santos, Luciano Balbino Dos
name: Miranda, Rogério Boueri
name: Moreira, Tito Belchior Silva
Publisher: name: Unknown
Year: 2012
Subjects: subject: Food Security and Poverty
subject: Public Economics
subject: Poverty
subject: Bolsa Familia Program
subject: Policy and Development

description: This paper investigates the sensitivity of the variable poverty facing the public policies currently adopted by the Brazilian government, focusing on four central aspects: higher education, per capita income, unemployment rate and Bolsa Família program. In recent years, the Brazilian government has shown a preferred option for reducing poverty through policies to transfer income to the poorest. Despite the weaknesses highlighted in the Bolsa Família program, the results indicate that the program has had a positive effect on poverty rates in Brazil. Furthermore, the strategies that seek to stop growth of pauperism in the history of Brazilian social development, such as GDP growth, expanding access to higher education, reduce unemployment and income transfer policies, cannot be taken as contradictory and mutually exclusive but as complementary and essential, depending on the seriousness of the problem that plagues our decades society.
4997: Richard Davis
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: Richard served with the West Riding Regiment during WW1. He received the 14/15 Star, War Medal, Victory Medal and Distinguished Conduct Medal.
5062: Roy Buckley
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: Empire Day Certificate 1915. From the Overseas Club, given to Roy Buckley.

There are 6 countries written on the certificate; Australia, New Zealand, Canada, South Africa, India and Newfoundland; There is also a quotation on the certificate taken from a poem by William Wordsworth.

The text reads as follows:
Overseas Club, Patron his Majesty the King
General Buildings, Aldwych, London W.C.
Empire Day 1915

This is to certify that Roy Buckley has helped to send some Comfort and happiness to the brave Sailors and Soldiers of the British Empire, fighting to uphold Liberty, justice, honour and freedom in the Great War.

The underlying motive of the “Overseas Club” is to promote the unity of British subjects the world over. Its chief objectives are:
(1) To help one another.
(2) To render individual service to our Empire.
(3) To draw together in the bond of comradeship British people the world over.
(4) To maintain our Empire’s supremacy upon the Seas.

The land we from our fathers had in trust.
And to our children will transmit or die:
This is our maxim, this is our piety;
And God and Nature say that it is just.”
(Wordsworth.)
AVALIAÇÃO DO NÍVEL TECNOLÓGICO DOS PRODUTORES DE LEITE NA REGIÃO OESTE DO ESTADO DO PARÁ
Creators: name: Sena, Ana Laura Dos Santos
name: Santos, Marcos Antônio Souza Dos
name: Santos, Jair Carvalho Dos
name: Homma, Alfredo Kingo Oyama
name: Sena, Ana Laura Dos Santos
name: Santos, Marcos Antônio Souza Dos
name: Santos, Jair Carvalho Dos
name: Homma, Alfredo Kingo Oyama
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Livestock Production/Industries
subject: Production Economics
subject: Dairy farming
subject: Animal productivity
subject: Technology
subject: State of Pará

description: The objective was to estimate an index for measuring the level of technological development of dairy farming in Western of Pará State. Data were obtained from the survey of 176 producers distributed in the municipalities of Itaituba, Rurópolis, Trairão and Placas. The variables representing the adoption of technologies have been pooled into the following groups: (i) plant, machinery and equipment, (ii) reproductive management, (iii) health management, (iv) pasture management and supplementary feeding, and (v) management and production planning, and, subsequently, subjected to statistical analysis to estimate a Global Technological Development Index (IT). The results indicated that the municipalities had low technological level which is reflected in low animal productivity whose overall average was only 3.78 liters/cow/day. In this context, the implementation of public policies to improve transport infrastructure and expand the supply of credit and technical assistance are important factors to stimulate the adoption of technologies to increase productivity and generate a product of higher quality.
Multi-orbital analysis on the Superconductivity in Na_{x}CoO_{2} \cdot y H_{2}O
Creators: name: Yanase, Youichi
name: Mochizuki, Masahito
name: Ogata, Masao
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We preform a multi-orbital analysis on the novel superconductivity in Na_{x}CoO_{2} \cdot yH_{2}O. We construct a three-orbital model which reproduces the band structure expected from the LDA calculation. The effective interaction leading to the pairing is estimated by means of the perturbation theory. It is shown that the spin triplet superconductivity is stabilized in the wide parameter region. This is basically owing to the ferromagnetic character of spin fluctuation. The p-wave and f-wave superconductivity are nearly degenerate. The former is realized when the Hund's rule coupling is large, and vice versa. In a part of the parameter space, the d-wave superconductivity is also stabilized. We point out that the orbital degeneracy plays an essential role for these results through the wave function of quasi-particles. The nearly degeneracy of p-wave and f-wave superconductivity is explained by analysing the orbital character of each Fermi surface. We discuss the validity of some reduced models. While the single band Hubbard model reproducing the Fermi surface is qualitatively inappropriate, we find an effective two-orbital model appropriate for studying the superconductivity. We investigate the vertex corrections higher than the third order on the basis of the two-orbital model. It is shown that the vertex correction induces the screening effect but does not affect on the qualitative results.
description: To appear in J. Phys. Soc. Jpn. 74 (2005) No.1
Un teorema (quasi) perfetto. Il libro di Giulio Moini, Neoliberismo, Mondadori, Milano, 2020
Creators: name: Segatori, Roberto
Publisher: name: SocietàMutamentoPolitica
Year: 2021

description: .
description: SocietàMutamentoPolitica, Vol 11, N° 22 (2020): che Genere di partecipazione?
4697: Time for tea
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: This cup, saucer and plate belonged to the contributor's dad's (Stanley Broadhead) maternal uncle, Albert Wild, from Sheffield.
Functional representation of the Volterra hierarchy
Creators: name: Vekslerchik, V. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this paper I study the functional representation of the Volterra hierarchy (VH). Using the Miwa's shifts I rewrite the infinite set of Volterra equations as one functional equation. This result is used to derive a formal solution of the associated linear problem, a generating function for the conservation laws and to obtain a new form of the Miura and Backlund transformations. I also discuss some relations between the VH and KP hierarchy.
description: 17 pages, submitted to Journal of Nonlinear Mathematical Physics
Vecchie e nuove rimozioni: rileggendo La solitudine del morente di Elias alla luce della pandemia
Creators: name: Valzania, Andrea
Publisher: name: SocietàMutamentoPolitica
Year: 2021

description: .
description: SocietàMutamentoPolitica, Vol 11, N° 22 (2020): che Genere di partecipazione?
q-Deformed de Sitter/Conformal Field Theory Correspondence
Creators: name: Lowe, David A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Unitary principal series representations of the conformal group appear in the dS/CFT correspondence. These are infinite dimensional irreducible representations, without highest weights. In earlier work of Guijosa and the author it was shown for the case of two-dimensional de Sitter, there was a natural q-deformation of the conformal group, with q a root of unity, where the unitary principal series representations become finite-dimensional cyclic unitary representations. Formulating a version of the dS/CFT correspondence using these representations can lead to a description with a finite-dimensional Hilbert space and unitary evolution. In the present work, we generalize to the case of quantum-deformed three-dimensional de Sitter spacetime and compute the entanglement entropy of a quantum field across the cosmological horizon.
description: 18 pages, 2 figures, revtex, (v2 reference added)
Maximum Fisher information in mixed state quantum systems
Creators: name: Luati, Alessandra
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62B05 (Primary) 62F10 (Secondary)

description: We deal with the maximization of classical Fisher information in a quantum system depending on an unknown parameter. This problem has been raised by physicists, who defined [Helstrom (1967) Phys. Lett. A 25 101-102] a quantum counterpart of classical Fisher information, which has been found to constitute an upper bound for classical information itself [Braunstein and Caves (1994) Phys. Rev. Lett. 72 3439-3443]. It has then become of relevant interest among statisticians, who investigated the relations between classical and quantum information and derived a condition for equality in the particular case of two-dimensional pure state systems [Barndorff-Nielsen and Gill (2000) J. Phys. A 33 4481-4490]. In this paper we show that this condition holds even in the more general setting of two-dimensional mixed state systems. We also derive the expression of the maximum Fisher information achievable and its relation with that attainable in pure states.
description: Published by the Institute of Mathematical Statistics (http://www.imstat.org) in the Annals of Statistics (http://www.imstat.org/aos/) at http://dx.doi.org/10.1214/009053604000000436
The role of the spin in quasiparticle interference
Creators: name: Pascual, J. I.
name: Bihlmayer, G.
name: Koroteev, Yu. M.
name: Rust, H. -P.
name: Ceballos, G.
name: Hansmann, M.
name: Horn, K.
name: Chulkov, E. V.
name: Bluegel, S.
name: Echenique, P. M.
name: Hofmann, Ph.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Quasiparticle interference patterns measured by scanning tunneling microscopy (STM) can be used to study the local electronic structure of metal surfaces and high temperature superconductors. Here, we show that even in non-magnetic systems the spin of the quasiparticles can have a profound effect on the interference patterns. On Bi(110), where the surface state bands are not spin-degenerate, the patterns are not related to the dispersion of the electronic states in a simple way. In fact, the features which are expected for the spin-independent situation are absent and the observed interference patterns can only be interpreted by taking spin-conserving scattering events into account.
description: 4 pages, 2 figures
Unsupervised Real Image Super-Resolution via Generative Variational AutoEncoder
Creators: name: Liu, Zhi-Song
name: Siu, Wan-Chi
name: Wang, Li-Wen
name: Li, Chu-Tak
name: Cani, Marie-Paule
name: Chan, Yui-Lam
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Benefited from the deep learning, image Super-Resolution has been one of the most developing research fields in computer vision. Depending upon whether using a discriminator or not, a deep convolutional neural network can provide an image with high fidelity or better perceptual quality. Due to the lack of ground truth images in real life, people prefer a photo-realistic image with low fidelity to a blurry image with high fidelity. In this paper, we revisit the classic example based image super-resolution approaches and come up with a novel generative model for perceptual image super-resolution. Given that real images contain various noise and artifacts, we propose a joint image denoising and super-resolution model via Variational AutoEncoder. We come up with a conditional variational autoencoder to encode the reference for dense feature vector which can then be transferred to the decoder for target image denoising. With the aid of the discriminator, an additional overhead of super-resolution subnetwork is attached to super-resolve the denoised image with photo-realistic visual quality. We participated the NTIRE2020 Real Image Super-Resolution Challenge. Experimental results show that by using the proposed approach, we can obtain enlarged images with clean and pleasant features compared to other supervised methods. We also compared our approach with state-of-the-art methods on various datasets to demonstrate the efficiency of our proposed unsupervised super-resolution model.
description: 9 pages, 7 figures, CVPR2020 NTIRE2020 Real Image Super-Resolution Challenge
5049: Sydney Buckley
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: Sydney Buckley (b. 1894) was a Royal Naval Volunteer Reserve and served in WW1. He was killed in action in Gallipoli on 4.6.1915. He is commemorated by the Commonwealth War Graves Commission on the Helles Memorial in Turkey.
INFLUÊNCIA DAS INOVAÇÕES TECNOLÓGICAS EM UNIDADES DE PRODUÇÃO FAMILIARES DA REGIÃO OESTE DE SANTA CATARINA
Creators: name: Simioni, Flávio José
name: Zilliotto, Teisonara Celine
name: Simioni, Flávio José
name: Zilliotto, Teisonara Celine
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Production Economics
subject: Technology
subject: Income
subject: Family farming

description: The aims of this study were to assess which variables are crucial for the incorporation of technological innovations in family farms, and identify the characteristics of the technologies employed and their impacts. The survey was conducted in western Santa Catarina, using a questionnaire to collect data on 59 family farms. The farms were classified into three groups according to the number and characteristics of the technological innovations employed. Data were statistically analyzed using multivariate Principal Component Analysis (PCA). The gross income obtained from farming activities (Income Breeding) and obtained with agricultural activities (Agriculture Income) were the response variables used in the analyzes. The explanatory variables considered were age and educational level the producer, working capital, land area, membership in cooperatives, internet access, use of credit, units of family labor and non-agricultural incomes. The results indicate that the farms with higher farm income and breeding, associated with greater availability of land area, the property capital and high education of gesture are the most innovative, while those that present low level of innovation are linked to the development of activities non-agricultural.
The pion form factor on the lattice at zero and finite temperature
Creators: name: van der Heide, J.
name: Koch, J. H.
name: Laermann, E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We calculate the electromagnetic form factor of the pion in quenched lattice QCD. The non-perturbatively improved Sheikoleslami-Wohlert lattice action is used together with the consistently O(a) improved current. We calculate the pion form factor for masses down to m_pi = 360 MeV, extract the charge radius, and extrapolate toward the physical pion mass. In the second part, we discuss results for the pion form factor and charge radius at 0.93 T_c and compare with zero temperature results.
description: Invited talk at the Lightcone 2004 conference, Amsterdam, 16-20 August, 2004
ANÁLISE DA COMPETITIVIDADE DA CANA-DE-AÇÚCAR NOS ESTADOS DE MATO GROSSO DO SUL, MINAS GERAIS E PARANÁ
Creators: name: Fagundes, Mayra Batista Bitencourt
name: Costa, Caio Luca
name: Fagundes, Mayra Batista Bitencourt
name: Costa, Caio Luca
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agricultural and Food Policy
subject: Policy Analysis Matrix
subject: Efficiency
subject: Economic Policies

description: This study aims to analyze the competitiveness and efficiency of the production activity of sugarcane in the states of Mato Grosso do Sul, Minas Gerais e Paraná. For this, it applies the Policy Analysis Matrix, extracting from it the needed information for the analysis. Results show that Mato Grosso do Sul presents the best indicators of competitiveness and efficiency, while Paraná e Minas Gerais present the worst ones, being harmed by economic policies which interfere negatively in sugarcane production.
title: Jacques Leibowitch, Dominique Mathez, "Pathogénie du SIDA, stratégies et tactiques thérapeutiques : vers des essais fondés sur la mesure des taux d'infection HIV cellulaire périphérique"
Creators: name: Mathez, Dominique (19..-....)
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Demande de contrat ANRS 1992-1993.
description: Source: http://www.calames.abes.fr/pub/ms/Calames-20193111031798129
4996: A Marine's Eye View
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: George Arthur Neasham was a Royal Marine. He was aboard HMS Yarmouth and wrote an account of the Battle of Jutland from a Marine's eye view. The letter was originally handwritten whilst at sae and typed up by George when he came home. George was a fully paid up member of the Communist Party and hence fought hard for his rights after the war.
Storie di ordinaria radicalizzazione: fattori causali e trigger events nelle narrazioni inconsapevoli dei giovani italiani di seconda generazione
Creators: name: Peruzzi, Gaia
name: Anzera, Giuseppe
name: Massa, Alessandra
Publisher: name: SocietàMutamentoPolitica
Year: 2021

description: The aim of this paper is to investigate the narratives of radicalization (sometimes unintended) throughout the verbalization of everyday experiences by young second generation Italians. The causes of radicalization are still under the scrutiny of contemporary literature: micro, meso, and macro factors combine themselves into a complex puzzle, driving to political and religious extremism. Interviews with 42 young generation Italians with Muslim background, aged between 18-30, have been made. Interviews, based in six different Italian cities (Rome, Boulogne, Milan, Turin, Palermo, and Cagliari), have been conducted in the framework of the project Oltre l’Orizzonte. Contro-narrazioni dai margini al centro, aimed to prevent radicalization. In this paper, the testimonies collected isolating interviewees’ narratives on socio-political alienation, globalization and religion, and international and domestic policies are examined. Identity and cultural claims emerge as distinctive matters, depicting continuous struggles leading to a troubled adaptation between religious and cultural values and citizenship practices.
description: SocietàMutamentoPolitica, Vol 11, N° 22 (2020): che Genere di partecipazione?
Impact de l’utilisation des Technologies de l’Information et de la Communication sur la commercialisation du riz local au Bénin
Creators: name: Adjovi, Gildas M.
name: Adegbola, Patrice Ygue
name: Adekambi, Souleimane Adeyemi
name: Diagne, Aliou
name: Adjovi, Gildas M.
name: Adegbola, Patrice Ygue
name: Adekambi, Souleimane Adeyemi
name: Diagne, Aliou
Publisher: name: Unknown
Year: 2013
Subjects: subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business
subject: commerçants
subject: prix
subject: coût de commercialisation
subject: contrefactuel
subject: Bénin.

description: L’objectif de l’étude est d’évaluer l’impact de l’utilisation des Technologies de l’Information et de la Communication (TIC) sur la formation du prix et les coûts de commercialisation du riz local au Bénin. Trois TIC ont été concernées : le téléphone portable, la radio et la télévision. L’approche économétrique d’estimation du contrefactuel a été utilisée pour contrôler l’existence d’éventuels biais de sélection. Les résultats ont montré que le téléphone portable est la TIC la plus utilisée. Son usage par les commerçants de riz a induit une augmentation des coûts de commercialisation par suite d’augmentation des charges. Cette augmentation des coûts de commercialisation était répercutée sur le prix de vente. La conception et la mise en oeuvre d’un système d’information sur les marchés de riz peut se baser sur la téléphonie mobile.
title: The significance of duplicative VSG gene activation during antigenic variation in African trypanosomes
Creators: name: Robinson, Nick
Publisher: name: University of Glasgow
Year: 1999

description: African trypanosomes can survive prolonged exposure to the immune responses of their mammalian hosts by constantly changing the variant surface glycoprotein (VSG) expressed in their surface coat in a process known as antigenic variation. Each parasite has a repertoire of approximately 1000 silent VSG genes, which are expressed differentially. The VSG genes are expressed exclusively at specialised transcriptional units known as the bloodstream expression sites (BBSs). Approximately 20 of these sites exist in the trypanosome nucleus, although only one is maximally active at a time, ensuring that a single VSG is expressed in the parasite's surface coat. VSG switching is mediated by replacing the VSG gene in the active BES, or by silencing the active BES and initiating transcription from a new BES. Investigations into trypanosome antigenic variation have described several different VSG switching mechanisms, although the majority of these studies were performed with laboratory attenuated trypanosome lines. Following repeated syringe passaging, these "monomorphic" lines have lost the ability to differentiate from the proliferative bloodstream form. Under normal circumstances these trypanosomes cannot be transmitted by the tsetse fly and do not develop through their life cycle. In addition, monomorphic trypanosomes display a marked reduction in their VSG switch rates, which are up to 4 or 5 orders of magnitude lower than those of non-adapted lines. This raises questions about the significance of the switching mechanisms observed in these lines. It has been proposed that non-adapted, or pleomorphic, trypanosomes normally have an active VSG switch mechanism, involving gene duplication, that is depressed, or from which a component is absent, in monomorphic lines. The main aim of this thesis was to examine this hypothesis by analysing the switching mechanisms used during VSG activation during the early stages of a chronic, pleomorphic infection. Additionally, this investigation examined the chromosomal environment of the basic copy VSG genes, to determine whether a chromosome position effect influenced the early order of VSG gene expression. It appears that, during the early stages of infection, trypanosome antigenic variation is predominated by duplicative transposition of telomeric VSGs, many of which reside on the minichromosomes. These results contrast strongly with the outcome of analyses of monomorphic trypanosomes, which utilize several different switching mechanisms, and most commonly display transcriptional switching during the early stages of infection. The work presented in this thesis therefore supports the hypothesis of a dedicated duplicative switching mechanism that is reduced in (or even absent from) laboratory adapted, monomorphic lines.
ESM_Main_Body from Capuchin monkey rituals: an interdisciplinary study of form and function
Creators: name: Perry, Susan
name: Smolla, Marco
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour

description: Main body of ESM, describing methods and findings, with additional tables and figures.
The Effects of Stacking on the Configurations and Elasticity of Single Stranded Nucleic Acids
Creators: name: Buhot, A.
name: Halperin, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Biomolecules (q-bio.BM)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Stacking interactions in single stranded nucleic acids give rise to configurations of an annealed rod-coil multiblock copolymer. Theoretical analysis identifies the resulting signatures for long homopolynucleotides: A non monotonous dependence of size on temperature, corresponding effects on cyclization and a plateau in the extension force law. Explicit numerical results for poly(dA) and poly(rU) are presented.
description: 4 pages and 2 figures. Accepted in Phys. Rev. E Rapid Comm
Three essays on corporate governance
Creators: name: Yen, Shih-Wei
Publisher: name: University of British Columbia
Year: 2009

description: The thesis is comprised of three essays on corporate governance. The first essay empirically tests the claim that well governed firms are safe investments and provide superior stock returns. The results show that well governed firms in fact are unusually risky, even after controlling for variables such as firm age, size and leverage. The positive and significant relationship between stock return volatility and good corporate governance also cannot be explained completely by managerial risk-taking behavior, as suggested in standard agency theory. I find that the reported abnormally high return (Gompers, Ishii and Metrick, 2003) for well governed firms is largely driven by two factors: penny stocks and outliers. By showing that there is actually no abnormal return, the essay suggests that the high firm-level risk associated with good governance is not priced and can be diversified away. In the second essay, I demonstrate that growth prospects play a crucial role in determining a firm's governance structure choices. When growth prospects are extremely promising, board structure choices are irrelevant. When growth prospects are modest, a firm may need to voluntarily adopt a friendly board to encourage its manager to undertake risky investments. When growth prospects are weak, an independent board is needed to avoid managerial misbehavior. The model explains why empirical evidence concerning the relationship between board independence and firm performance is mixed. Also, it predicts various announcement effects across firms with different board structures. The essay suggests that improvement in legal protection can be beneficial for shareholders, but regulatory agencies' requirements aimed at increasing board independence may in fact destroy firm values and growth opportunities. In the third essay, I modify the standard agency model to explain certain predictions provided by sociology-based executive compensation theories. When a director is also a CEO of another company, concerns about his own compensation and the non-pecuniary private benefits of being a director can affect his decisions when designing the incentive contract for the CEO. Under certain conditions, the model generates predictions consistent with those of social comparison theory, social exchange theory and social similarity theory. This simple model also provides testable implications about how and where the predictions of these social compensation theories will break.
Answering a Basic Objection to Bang/Crunch Holography
Creators: name: McInnes, Brett
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The current cosmic acceleration does not imply that our Universe is basically de Sitter-like: in the first part of this work we argue that, by introducing matter into *anti-de Sitter* spacetime in a natural way, one may be able to account for the acceleration just as well. However, this leads to a Big Crunch, and the Euclidean versions of Bang/Crunch cosmologies have [apparently] disconnected conformal boundaries. As Maldacena and Maoz have recently stressed, this seems to contradict the holographic principle. In the second part we argue that this "double boundary problem" is a matter not of geometry but rather of how one chooses a conformal compactification: if one chooses to compactify in an unorthodox way, then the appearance of disconnectedness can be regarded as a *coordinate effect*. With the kind of matter we have introduced here, namely a Euclidean axion, the underlying compact Euclidean manifold has an unexpectedly non-trivial topology: it is in fact one of the 75 possible underlying manifolds of flat compact four-dimensional Euclidean spaces.
description: 29 pages, 3 figures, added references and comparison with "cyclic" cosmology, JHEP version
Las percepciones del dinamismo del entorno de la cadena de suministros agroalimentaria. Un analisis utilizando el modelo de Rasch
Creators: name: Perez, Ana M. Garcia
name: Rodriguez, Juan Ramon Oreja
name: Estevez, Vanessa Yanes
name: Perez, Ana M. Garcia
name: Rodriguez, Juan Ramon Oreja
name: Estevez, Vanessa Yanes
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Demand and Price Analysis
subject: entorno
subject: dinamismo
subject: Rasch
subject: cadena de suministros agroalimentaria
subject: Environment
subject: dynamism
subject: agrifood supply chain

description: Este trabajo presenta un analysis del entorno de las empresas de la cadena de suministros agroalimentaria a partir del dinamismo percibido y aplicando el modelo de Rasch (1960/1980). Los integrantes de dicha cadena en Canarias (agricultura, industria agroalimentaria y distribucion) perciben, principalmente a los compedtidores y al consumidor como las variables mas dinamicas del entorno. Con relacion a las diferencias en las percepciones de los distintos integrantes de la cadena, los recursos naturales y tecnologicos son los unicos elementos del entorno percibidos mas dinamicos por la agroindustria que por la distribucion. En cuanto a las diferencias segun el tamano de las empresas, se obtiene que la situacion de la demanda y la situacion de los competidores son percibidas mas dinamicas por la distribucion. En cuanto a las diferencias segun el tamno de las empresas, se obtiene que la situacion de la demanda y la situacion de los competidores son percibidas mas dinamicas por las empresas de menor dimension. Por el contrario, la legislacion laboral, la legislacion sectorial y los recursos tecnologicos son percibidas mas estables por las empresas de menor dimension. The work presents a business environment scanning of the agrifood supply chain based on the perceived dynamism and applying the Rasch model (1960/1980), The members of the agrifood supply chain (agriculture, agroindustry and distribution) in the Canary Islands perceive competitors and consumer as the most dynamic variables. Related to the differences in perceptions among the members of the agrifood supply chain, natural and technological resources are the only items perceived more dynamic by the agroindustry than by the distribution. Considering the size of the firms the results show that demand and competitors are perceived more dynamic by the smallest firms. On the contrary, labour legislation, sectorial legislation and technological resources are perceived more stable by the smallest firms.
Generation of long-living entanglement between two separate atoms
Creators: name: Çakir, Özgür
name: Dung, Ho Trung
name: Knöll, Ludwig
name: Welsch, Dirk-Gunnar
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A scheme for non-conditional generation of long-living maximally entangled states between two spatially well separated atoms is proposed. In the scheme, $Λ$-type atoms pass a resonator-like equipment of dispersing and absorbing macroscopic bodies giving rise to body-assisted electromagnetic field resonances of well-defined heights and widths. Strong atom-field coupling is combined with weak atom-field coupling to realize entanglement transfer from the dipole-allowed transitions to the dipole-forbidden transitions, thereby the entanglement being preserved when the atoms depart from the bodies and from each other. The theory is applied to the case of the atoms passing by a microsphere.
description: 13 pages, 5 figures
Rotation curves of spiral galaxies: Influence of magnetic fields and energy flows
Creators: name: Kutschera, M.
name: Jalocha, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Physical mechanisms that can influence rotation curves of spiral galaxies are discussed. For dark matter studies, possible contributions due to magnetic fields and non-Newtonian gravitational accelerations should be carefully accounted for. We point out that magnetic fields are particularly important in outermost parts of the disk. In the framework of general relativity the physical reason of an enhanced gravity in spiral galaxies depends on the assumed metric. The additional gravity is provided for Schwarzschild metric by nonluminous mass, whereas for Vaidya metric [1] by emission of radiative energy. In the latter case the non-Newtonian acceleration displays 1/r behaviour. Also matter flows contribute to non-Newtonian gravity.
description: 10 pages
A He I upper atmosphere around the warm Neptune GJ 3470b
Creators: name: Palle, E.
name: Nortmann, L.
name: Casasayas-Barris, N.
name: Lampón, M.
name: López-Puertas, M.
name: Caballero, J. A.
name: Sanz-Forcada, J.
name: Lara, L. M.
name: Nagel, E.
name: Yan, F.
name: Alonso-Floriano, F. J.
name: Amado, P. J.
name: Chen, G.
name: Cifuentes, C.
name: Cortés-Contreras, M.
name: Czesla, S.
name: Molaverdikhani, K.
name: Montes, D.
name: Passegger, V. M.
name: Quirrenbach, A.
name: Reiners, A.
name: Ribas, I.
name: Sánchez-López, A.
name: Schweitzer, A.
name: Stangret, M.
name: Osorio, M. R. Zapatero
name: Zechmeister, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: High resolution transit spectroscopy has proven to be a reliable technique for the characterization of the chemical composition of exoplanet atmospheres. Taking advantage of the broad spectral coverage of the CARMENES spectrograph, we initiated a survey aimed at characterizing a broad range of planetary systems. Here, we report our observations of three transits of \tplanet with CARMENES in search of \het\ absorption. On one of the nights, the He~{\sc i} region was heavily contaminated by OH$^-$ telluric emission and, thus, it was not useful for our purposes. The remaining two nights had a very different signal-to-noise ratio (S/N) due to weather. They both indicate the presence of \het\ absorption in the transmission spectrum of \tplanet, although a statistically valid detection can only be claimed for the night with higher S/N. For that night, we retrieved a 1.5$\pm$0.3\% absorption depth, translating into a $R_p(λ)/R_p = 1.15\pm 0.14$ at this wavelength. Spectro-photometric light curves for this same night also indicate the presence of extra absorption during the planetary transit with a consistent absorption depth. The \het\ absorption is modeled in detail using a radiative transfer code, and the results of our modeling efforts are compared to the observations. We find that the mass-loss rate, \mlr, is confined to a range of 3\,$\times\,10^{10}$\,\gs\ for $T$ = 6000\,K to 10\,$\times\,10^{10}$\,\gs\ for $T$ = 9000\,K. We discuss the physical mechanisms and implications of the He~{\sc i} detection in \tplanet and put it in context as compared to similar detections and non-detections in other Neptune-size planets. We also present improved stellar and planetary parameter determinations based on our visible and near-infrared observations.
description: Accepted for publication in A&A
Precise asymptotics of ruin probabilities for a class of multivariate heavy-tailed distributions
Creators: name: Hägele, Miriam
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G50, 91B30

description: This article studies asymptotic approximations of ruin probabilities of multivariate random walks with heavy-tailed increments. Under our assumptions, the distributions of the increments are closely connected to multivariate subexponentiality and admit dependence between components. Keywords: subexponential distribution, ruin probability, multivariate random walk
description: 12 pages
4212: George William Mann
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: George William Mann was Bruce Barnes' Grandfather. George was an electrician who worked on the Sandringham Royal Estate. He enlisted with the Norfolk regiment but was discharged in December 1915. He then worked at Harland & Wolff in Belfast before re-enlisting with The Royal Engineers.
Rigidity of cosmic acceleration in a class of k-essence cosmologies
Creators: name: Lazkoz, Ruth
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the structural stability of a cosmic acceleration (inflation) in a class of k-essence cosmologies against changes in the shape of the potential. Those models may be viewed as generalized tachyon cosmologies and this analysis extends previous results on the structural stability of cosmic acceleration in tachyon cosmologies. The study considers both phantom and non-phantom cases. The concepts of rigidity and fragility are defined through a condition on the functional form of the Hubble factor. Given the known result of the existence of inflationary (non-phantom) and super-inflationary (phantom) attractors we formulate the question of their structural stability. We find that those attractors are rigid in the sense that they never change as long as the conditions for inflation or super-inflation are met.
description: 10 pages
Supplementary Materials for 'Ritual Morphospace Revisted' from Ritual morphospace revisited: the form, function and factor structure of ritual practice
Creators: name: Kapitany, Rohan
name: Kavanagh, Christopher
name: Whitehouse, Harvey
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: Human rituals exhibit bewildering diversity, from the Mauritian Kavadi to Catholic communion. Is this diversity infinitely plastic or are there some general dimensions along which ritual features vary? We analysed two cross-cultural datasets: one drawn from the anthropological record and another novel contemporary dataset to examine whether a consistent underlying set of latent dimensions in ritual structure and experiences were detected. First, we conducted a factor analysis on 651 rituals from 74 cultural groups, in which 102 binary variables were coded. We find a reliable set of dimensions emerged, which provide potential candidates for foundational elements of ritual form. Notably, we find that the expression of features associated with dysphoric and euphoric experiences in rituals appear to be largely orthogonal. Second, we follow-up with a pre-registered factor analysis examining contemporary ritual experiences of 779 individuals from Japan, India and the US. We find supporting evidence that ritual experiences are clustered in relatively orthogonal euphoric, dysphoric, frequency and cognitive dimensions. Our findings suggest that there are important regularities in the diversity of ritual expression and experience observed across both time and culture. We discuss the implications of these findings for cognitive theories of ritual and cultural evolution.This article is part of the XX ‘Ritual renaissance: new insights into the most human of behaviors'.