cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Investigating the circadian clock of Verticillium dahliae and its influence on pathogenicity
Creators: name: Cascant López, Emma
Publisher: name: University of Reading
Year: 2018

description: The circadian clock is an internal timekeeper mechanism that allows organisms to anticipate and synchronize to daily environmental changes. The circadian clock is present in most branches of life; in plants, it modulates defence mechanisms impacting plant-pathogen interactions. This suggests that pathogens may also time their biological events in order to optimize infection. A broad knowledge of the molecular mechanism of circadian clocks has been gained through the fungal model Neurospora crassa. Nevertheless, little is known about circadian clocks in other fungi. We sought to characterize, therefore, the presence of a circadian clock in the fungal plant-pathogen Verticillium dahliae, and assess its influence on pathogenicity. To characterize the presence of a circadian system in V. dahliae, we first performed comparative genetics studies, and identified homologs of all the N. crassa circadian clock genes in V. dahliae. High conservation of clock protein domains between N. crassa and V. dahliae was observed. We studied whether the daily formation of conidia and miscrosclerotia (infective propagules) were regulated in a circadian manner in the plant pathogen. However, no evidence for an entrainable, free-running rhythm was observed. Moreover, temporal gene expression profiling with qRT-PCR in constant darkness showed a lack of rhythmic frq expression. Thus, in order to assess the role of the putative clock genes in V. dahliae, gene deletion mutants were produced. Deleting the core clock gene frq did not have an obvious effect on fungal morphology. However, the deletion of the transcription factor and photoreceptor wc-1 resulted in the abolishment of microsclerotia, and stopped the light-regulated spore production, confirming that wc-1 is involved in the production of the daily developmental rhythm by mediating transcriptional responses to white light. Finally, through in vitro pathogenicity tests we observed that Arabidopsis plants inoculated with the wild-type fungus showed more severe disease symptoms than the plants inoculated with the clock mutant strains. In conclusion, V. dahliae presents all the necessary genetic loci for a functional clock, but there is no evidence of rhythmicity in either morphological traits or in gene expression. However, putative clock genes play an important role in the overall fitness of the fungus, suggesting that they have additional non circadian roles. Therefore, their study can provide a better understanding of the hostpathogen interaction.
The nature of the companion in the Wolf-Rayet system EZ Canis Majoris
Creators: name: Koenigsberger, Gloria
name: Schmutz, Werner
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: EZ Canis Majoris is a classical Wolf-Rayet star whose binary nature has been debated for decades. It was recently modeled as an eccentric binary with a periodic brightening at periastron of the emission originating in a shock heated zone near the companion. The focus of this paper is to further test the binary model and to constrain the nature of the unseen close companion by searching for emission arising in the shock-heated region. We analyze over 400 high resolution the International Ultraviolet Explorer spectra obtained between 1983 and 1995 and XMM-Newton observations obtained in 2010. The light curve and radial velocity (RV) variations were fit with the eccentric binary model and the orbital elements were constrained. We find RV variations in the primary emission lines with a semi-amplitude K$_1\sim$30 km/s in 1992 and 1995, and a second set of emissions with an anti-phase RV curve with K$_2\sim$150 km/s. The simultaneous model fit to the RVs and the light curve yields the orbital elements for each epoch. Adopting a Wolf-Rayet mass M$_1\sim$20 M$_\odot$ leads to M$_2\sim$3-5 M$_\odot$, which implies that the companion could be a late B-type star. The eccentric (e=0.1) binary model also explains the hard X-ray light curve obtained by XMM-Newton and the fit to these data indicates that the duration of maximum is shorter than the typical exposure times. The anti-phase RV variations of two emission components and the simultaneous fit to the RVs and the light curve are concrete evidence in favor of the binary nature of EZ Canis Majoris. The assumption that the emission from the shock-heated region closely traces the orbit of the companion is less certain, although it is feasible because the companion is significantly heated by the WR radiation field and impacted by the WR wind.
description: 16 pages, 18 figures
STRUCTURAL CHANGE AND FARM LABOUR ADJUSTMENTS IN A DUALISTIC FARM STRUCTURE: A SIMULATION STUDY FOR THE REGION NITRA IN SOUTHWEST SLOVAKIA
Creators: name: Schnicke, Hauke Joachim
name: Happe, Kathrin
name: Sahrbacher, Christoph
name: Schnicke, Hauke Joachim
name: Happe, Kathrin
name: Sahrbacher, Christoph
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Farm Management
subject: Labor and Human Capital
subject: Resource /Energy Economics and Policy
subject: Labour input
subject: structural change
subject: agent-based modelling
subject: agricultural policy analysis. Landwirtschaftliche Beschäftigung
subject: Strukturwandel
subject: Agentenbasierte Modellierung
subject: Politikanalyse

description: This Discussion Paper explores interactions between structural impediments to labour adjustment, specific labour adjustment patterns and the impacts of differing economical and political frames. Based on the agent-based simulation framework AgriPoliS adjusted to the agricultural structure of the region Nitra in southwest Slovakia, we carry out a range of simulation experiments on the possible interplay between off-farm job opportunities for farm operators, growth in other sectors of the economy, and policy impacts. Results show that free movement of labour between sectors leads to strong adjustments in the agricultural labour force and benefits farms with a growth potential. EU Accession and a subsequent decoupling of payments lead farms to stay in business that would have otherwise left the sector. These farms, however, have a different mix of family and hired labour.
Antisymmetry: Fundamentals and Applications
Creators: name: Padmanabhan, Hari
name: Munro, Jason M.
name: Dabo, Ismaila
name: Gopalan, Venkatraman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Symmetry is fundamental to understanding our physical world. An antisymmetry operation switches between two different states of a trait, such as two time-states, position-states, charge-states, spin-states, chemical-species etc. This review covers the fundamental concepts of antisymmetry, and focuses on four antisymmetries, namely spatial inversion in point groups, time reversal, distortion reversal and wedge reversion. The distinction between classical and quantum mechanical descriptions of time reversal is presented. Applications of these antisymmetries in crystallography, diffraction, determining the form of property tensors, classifying distortion pathways in transition state theory, finding minimum energy pathways, diffusion, magnetic structures and properties, ferroelectric and multiferroic switching, classifying physical properties in arbitrary dimensions, and antisymmetry-protected topological phenomena are presented.
description: When citing this paper, please use the following: Padmanabhan H, Munro JM, Dabo I, Gopalan V. 2020. Antisymmetry: Fundamentals and Applications. Annu. Rev. Mat. Res.: Submitted. DOI: 10.1146/annurev-matsci-100219-101404
Additional file 1 of Intracerebral overexpression of miR-669c is protective in mouse ischemic stroke model by targeting MyD88 and inducing alternative microglial/macrophage activation
Creators: name: Kolosowska, Natalia
name: Gotkiewicz, Maria
name: Hiramani Dhungana
name: Giudice, Luca
name: Giugno, Rosalba
name: Box, Daphne
name: Huuskonen, Mikko T.
name: Korhonen, Paula
name: Scoyni, Flavia
name: Kanninen, Katja M.
name: Ylä-Herttuala, Seppo
name: Turunen, Tiia A.
name: Turunen, Mikko P.
name: Koistinaho, Jari
name: Malm, Tarja
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1: Supplementary Figure 1. MiR-669c-3p levels are upregulated in primary murine microglia upon LPS and IFN-γ challenge. LPS or IL-4 exposure alone does not alter BV2 cell (A) or primary microglial cell (B) expression of miR-669c-3p, yet miR-669c-3p expression is induced in primary microglia upon IFN-γ and LPS combined stimulation (M1) (B). Quantitative real-time PCR for miR-669c-3p in wild type BV2 cells treated with vehicle, LPS (50 ng/ml) or IL-4 (20 ng/ml) for 24 h or primary murine microglia treated with vehicle or IFN-γ (20 ng/ml) in combination with LPS (10 ng/ml) for 24 h. One-way ANOVA followed by Bonferroni's post-hoc tests: N = 6-7 in each group. MiR-669c-3p expression is higher in unstimulated primary microglia in comparison to primary astrocytes (C). Quantitative real-time PCR for miR-669c-3p in vehicle-treated primary murine microglia (MG) or vehicle primary murine astrocytes (ASTRO). Unpaired two-tailed t-test: **p < 0.01 compared to vehicle treated astrocytes, N = 3-6. MiR-669c-3p (669) expression is increased in LV1-miR-669c transduced BV2 cells versus LV1-GFP (GFP) transduced cells (D). Quantitative real-time PCR for miR-669c-3p in BV2 cells transduced either with control LV1-GFP or LV1-miR-669c. Unpaired two-tailed t-test: ***p < 0.001 compared to LV1-GFP transduced vehicle, N = 4-6 in each group.
CONCEPTUAL FRAMEWORK FOR ANALYSING STRUCTURAL CHANGE IN AGRICULTURE AND RURAL LIVELIHOODS
Creators: name: Buchenrieder, Gertrud
name: Mollers, Judith
name: Happe, Kathrin
name: Davidova, Sophia
name: Fredriksson, Lena
name: Bailey, Alastair
name: Kancs, D'Artis
name: Swinnen, Johan F.M.
name: Vranken, Liesbet
name: Hubbard, Carmen
name: Ward, Neil
name: Juvancic, Luka
name: Milczarek, Dominika
name: Plamen, Mishev
name: Buchenrieder, Gertrud
name: Mollers, Judith
name: Happe, Kathrin
name: Davidova, Sophia
name: Fredriksson, Lena
name: Bailey, Alastair
name: Kancs, D'Artis
name: Swinnen, Johan F.M.
name: Vranken, Liesbet
name: Hubbard, Carmen
name: Ward, Neil
name: Juvancic, Luka
name: Milczarek, Dominika
name: Plamen, Mishev
Publisher: name: Unknown
Year: 2007
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development
Research Methods/ Statistical Methods

description: The Deliverable 2.1 (D2.1) of the SCARLED project provides the conceptual framework for analysing structural change in agriculture and rural livelihoods in the NMS and established Member States of the EU. It concisely summarizes the underlying theories and concepts of the pertinent research issues in SCARLED. SCARLED addresses a topic of wide interest with regard to the identification of past and future key social and agricultural restructuring processes for a living countryside in the NMS. Methodologically, the topic is approached by comparative, structured multi-country farm surveys complemented by an analysis of structural changes in the farm sectors of two selected regions with the agent-based simulation model AgriPoliS, taking special account of demographic changes. In addition, SCARLED studies success stories of rural development in selected regions of five established Member States For all topics covered by the SCARLED workpackages, the most relevant literature has been reviewed. The driving forces of structural change and rural livelihoods are identified and discussed in detail. All subsequent SCARLED analyses and methodological approaches will refer to this document. On the basis of this conceptual framework paper, the framework for the survey tool is established and will be further developed to serve the needs of the empirically based workpackages. The analysis of rural development success stories in established Member States will use the common methodological framework outlined in D2.1. The literature used in D2.1 is customized in Endnotes, a software system for managing bibliographies. Furthermore, it is noted that outputs and new developments in SCARLED will be documented on the project’s homepage - www.scarled.eu.
Poverty, property rights and land management in Uganda
Creators: name: Birungi, Patrick
name: Hassan, Rashid M.
name: Birungi, Patrick
name: Hassan, Rashid M.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Food Security and Poverty
subject: Land Economics/Use
subject: poverty
subject: social capital
subject: property rights
subject: soil fertility management
subject: Uganda

description: This study investigates the impact of poverty, social capital and land tenure on the adoption of soil fertility management (SFM) and conservation technologies in Uganda. Considering four land management technologies (fallowing, terracing and inorganic and organic fertilizers), the study estimates a multinomial logit model to link farmers’ characteristics to the choice of technologies. The findings show that investments in land management are driven by factors such as land tenure security, level of poverty and participation in community organizations (social capital), and, most importantly, that household level poverty reduces the probability of adoption of most of the technologies, while social capital and land tenure security increase it. The findings suggest that more efficient government efforts to reduce poverty would enhance the adoption of SFM technologies. Other policies that would enhance the adoption of sustainable land management practices are infrastructure development, tenure security through a more efficient system of land registration, and investment in and use of social capital institutions.
The demand for meat in Egypt: An almost ideal estimation
Creators: name: Alboghdady, Mohamed Altabei
name: Alashry, Mohamed Khairy
name: Alboghdady, Mohamed Altabei
name: Alashry, Mohamed Khairy
Publisher: name: Unknown
Year: 2010
Subjects: subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Livestock Production/Industries
subject: meat
subject: Almost Ideal Demand System
subject: seemingly unrelated regressions
subject: Egypt

description: This paper analyzes the demand for meat in Egypt for the period 1990–2005 using the linearized Almost Ideal Demand System to estimate own-price, cross-price and expenditure elasticities. It found that the Marshallian own-price elasticity was the highest for fish, followed by chicken, beef and duck. On the other hand, the crossprice elasticity of beef showed a complementary relationship with the other meat types, except for fish, which is substitutive. Chicken and fish showed a substitutive relationship with all other meat types. Duck showed a substitutive relationship with all meats except rabbit. Mutton and rabbit showed a versatile relationship with the other meat types. The highest substitutive relationship was between mutton and beef. Compensated own-price elasticity estimates showed similar trends but smaller values than uncompensated ones, which is theoretically consistent
title: The Atlantic/Pacific atmospheric moisture budget asymmetry: the role of atmospheric moisture transport
Creators: name: Craig, Philip Macleod
Publisher: name: University of Reading
Year: 2018

description: The contrast between basin-integrated precipitation minus evaporation (P − E) of the Atlantic and Pacific Oceans is about 0.4 Sv (1 Sv ≡ 109 kg s−1 ). The Atlantic is net evaporative and the Pacific near neutral - a result consistent across datasets. This asymmetry has been linked to the higher sea surface salinity (SSS) in the Atlantic than in the Pacific (at all latitudes) and the absence of deep-water formation in the Pacific. This thesis focuses on the interbasin P − E contrast and the atmospheric moisture transports associated with it. Here, it is shown that the P −E asymmetry is primarily a result of greater Pacific precipitation per unit area south of 30◦N, with greater Atlantic evaporation per unit area north of 30◦N making a smaller contribution. Comparing the atmospheric moisture fluxes across the catchment boundaries of the ocean drainage basins (the integral of which is equal to basin-integrated P −E) shows that anomalous eastward fluxes across South-East Asia, in contrast to westward fluxes across other boundaries, dominate the annual mean P − E asymmetry, rather than the flux across Central America as is often stated. Using an airmass trajectory model it is shown that the moisture fluxes across catchment boundaries are dominated by contributions from the neighbouring basins. This also reveals that the atmosphere imports moisture to the Pacific more efficiently than to the Atlantic/Indian basins. Backward trajectories with Indian Ocean origin are associated with net precipitation of 0.43 Sv across the Pacific. The Somali low-level jet and Asian Summer Monsoon dominate the P − E asymmetry by diverting trajectories away from Africa into westerly flow across India towards the Pacific. This causes the anomalous eastward fluxes across South-East Asia and therefore the strong Pacific precipitation south of 30◦N. These results highlight the importance of continental geometry and steady large-scale circulation features in the mean state of the P − E asymmetry.
The rural non-farm economy, livelihood strategies and household welfare
Creators: name: Stifel, David
name: Stifel, David
Publisher: name: Unknown
Year: 2010
Subjects: subject: Community/Rural/Urban Development
subject: non-farm
subject: livelihood strategy
subject: diversification
subject: labor
subject: welfare
subject: Madagascar

description: This paper examines the relationship between rural non-farm employment and household welfare using nationally representative data from Madagascar. It focuses on labor outcomes in the context of household livelihood strategies that include farm and non-farm income earning opportunities. It identifies distinct household livelihood strategies that can be ordered in welfare terms, and estimates multinomial logit models to assess the extent of the barriers to choosing dominant strategies. It finds that high-return non-farm activities provide an important pathway out of poverty, but that barriers such as lack of (a) education, (b) formal credit and (c) access to telecommunications restrict participation in such activities. Individual employment choice models and estimates of earnings functions provide supporting evidence of these barriers. Although the poverty reduction effects may be limited, low-return non-farm activities also play an important role as safety nets by providing opportunities for ex ante risk reduction and ex post coping with shocks.
Non-anticommutative deformation of N=(1,1) hypermultiplets
Creators: name: Ivanov, Evgeny
name: Lechtenfeld, Olaf
name: Zupnik, Boris
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the SO(4)xSU(2) invariant and N=(1,0) supersymmetry-preserving nilpotent (non-anticommutative) Moyal deformation of hypermultiplets interacting with an abelian gauge multiplet, starting from their off-shell formulation in Euclidean N=(1,1) harmonic superspace. The deformed version of a neutral or a charged hypermultiplet corresponds to the `adjoint' or the `fundamental' representation of the deformed U(1) gauge group on the superfields involved. The neutral hypermultiplet action is invariant under N=(2,0) supersymmetry and describes a deformed N=(2,2) gauge theory. For both the neutral and the charged hypermultiplet we present the corresponding component actions and explicitly give the Seiberg-Witten-type transformations to the undeformed component fields. Mass terms for the hypermultiplets can be generated via the Scherk-Schwarz mechanism and Fayet-Iliopoulos term in analogy to the undeformed case.
description: 1+17 pages; v2: introduction and conclusions expanded, published version
A new imaging technology based on Compton X-ray scattering
Creators: name: Hernández, Ángela Saá
name: González-Díaz, Diego
name: Villanueva, Pablo
name: Azevedo, Carlos
name: Seoane, Marcos
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We describe a feasible implementation of a novel X-ray detector for highly energetic x-ray photons with a large solid angle coverage, optimal for the detection of Compton x-ray scattered photons. The device consists of a 20~cm-thick sensitive volume filled with xenon at atmospheric pressure. When the Compton-scattered photons interact with the xenon, the released photoelectrons create clouds of secondary ionization, which are imaged using the electroluminescence produced in a custom-made multi-hole acrylic structure. Photon-by-photon counting can be achieved by processing the resulting image, taken in a continuous readout mode. Based on Geant4 simulations, by considering a realistic detector design and response, we show that photon rates up to at least $10^{11}$ ph/s on-sample ($5~μ$m water-equivalent cell) can be processed, limited by the spatial diffusion of the photoelectrons in the gas. Illustratively, if making use of the Rose criterion and assuming the dose partitioning theorem, we show how such a detector would allow obtaining 3d images of $5~μ$m-size unstained cells in their native environment in about 24~h, with a resolution of 36~nm.
The First Chandra Field
Creators: name: Weisskopf, Martin C.
name: Aldcroft, Thomas L.
name: Cameron, Robert A.
name: Gandhi, Poshak
name: Foellmi, Cédric
name: Elsner, Ronald F.
name: Patel, Sandeep K.
name: Wu, Kinwah
name: O'Dell, Stephen L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Before the official first-light images, the Chandra X-Ray Observatory obtained an X-ray image of the field to which its focal plane was first exposed. We describe this historic observation and report our study of the first Chandra field. Chandra's Advanced CCD Imaging Spectrometer (ACIS) detected 15 X-ray sources, the brightest being dubbed ``Leon X-1'' to honor the Chandra Telescope Scientist, Leon Van Speybroeck. Based upon our analysis of the X-ray data and spectroscopy at the European Southern Observatory (ESO; La Silla, Chile), we find that Leon X-1 is a Type-1 (unobscured) active galactic nucleus (AGN) at a redshift z=0.3207. Leon X-1 exhibits strong Fe II emission and a broad-line Balmer decrement that is unusually flat for an AGN. Within the context of the Eigenvector-1 correlation space, these properties suggest that Leon X-1 may be a massive (> 10**{9} solar mass) black hole, accreting at a rate approaching its Eddington limit.
description: 39 pages, 9 figures, accepted for publication in ApJ
Coherence of Spin Qubits in Silicon
Creators: name: Tyryshkin, A. M.
name: Morton, J. J. L.
name: Benjamin, S. C.
name: Ardavan, A.
name: Briggs, G. A. D.
name: Ager, J. W.
name: Lyon, S. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Given the effectiveness of semiconductor devices for classical computation one is naturally led to consider semiconductor systems for solid state quantum information processing. Semiconductors are particularly suitable where local control of electric fields and charge transport are required. Conventional semiconductor electronics is built upon these capabilities and has demonstrated scaling to large complicated arrays of interconnected devices. However, the requirements for a quantum computer are very different from those for classical computation, and it is not immediately obvious how best to build one in a semiconductor. One possible approach is to use spins as qubits: of nuclei, of electrons, or both in combination. Long qubit coherence times are a prerequisite for quantum computing, and in this paper we will discuss measurements of spin coherence in silicon. The results are encouraging - both electrons bound to donors and the donor nuclei exhibit low decoherence under the right circumstances. Doped silicon thus appears to pass the first test on the road to a quantum computer.
description: Submitted to J Cond Matter on Nov 15th, 2005
Quantum Phase Transitions in the Itinerant Ferromagnet ZrZn$_2$
Creators: name: Uhlarz, M.
name: Pfleiderer, C.
name: Hayden, S. M.
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: We report a study of the ferromagnetism of ZrZn$_{2}$, the most promising material to exhibit ferromagnetic quantum criticality, at low temperatures $T$ as function of pressure $p$. We find that the ordered ferromagnetic moment disappears discontinuously at $p_c$=16.5 kbar. Thus a tricritical point separates a line of first order ferromagnetic transitions from second order (continuous) transitions at higher temperature. We also identify two lines of transitions of the magnetisation isotherms up to 12 T in the $p-T$ plane where the derivative of the magnetization changes rapidly. These quantum phase transitions (QPT) establish a high sensitivity to local minima in the free energy in ZrZn$_{2}$, thus strongly suggesting that QPT in itinerant ferromagnets are always first order.
探讨意识能量场对量子测量的影响：改进版双缝干涉实验设计
Creators: name: Huang, Tao
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 510899
subject: Quantum physics not elsewhere classified

description: 量子力学中的波函数坍缩问题一直以来是科学界探讨的热点之一。本文提出一种改进版的双缝干涉实验，以验证观察者的意识是否会通过影响与光子纠缠的粒子状态而影响量子测量结果。通过在封闭环境中进行实验，并利用震动传感器检测机制，本文试图揭示意识能量场是否能通过量子纠缠影响粒子状态。
2193: Alice Hollingworth's housekeeping notebook
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: Alice was from Sheffield and married Thomas Hollingworth after he was honourably discharged from service due to disability. Alice kept a housekeeping notebook, and although this dates to 1919 would have been typical of the information used by housewives during the war. Alice's handwriting is notably neat.
The Determinants of Agglomeration in Health Care Sector Employment in US Metropolitan areas
Creators: name: Mishra, Bhawani P.
name: Mishra, Bhawani P.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Community/Rural/Urban Development
subject: agglomeration
subject: panel data
subject: metropolitan area

description: There is a tendency of industries to co-locate together in order to reap the benefits of externalities. The basic objectives of this study to identify the factors affecting agglomeration of health care sector in US cities. Due to differences in the nature of industries factors affecting agglomeration are likely to be different for different industries. Therefore this study has considered investigating on single health care sector. Moreover, this study used the panel data model in order to capture both cross-section and temporal dimension of the agglomeration. This study found that factors like local competition, population, input availability, and state research expenditure on health care are significant for the agglomeration of health care sector. This study has also identified that fixed effect panel data model can be an appropriate model to estimate the factors affecting agglomeration in health care sector.
description: Paper Presented on 41st Annual and Conference Mid-Continent Regional Science Association (MCRSA), June 3-5, 2010 St. Louis, MO
Transcriptional regulation of human genes by endogenous retroviral elements
Creators: name: Landry, Josette-Renee
Publisher: name: University of British Columbia
Year: 2009

description: Human endogenous retroviruses (HERVs) and other long terminal repeat (LTR)- containing elements comprise a significant portion (8%) of the human genome and are likely vestiges of retroviral infections during primate evolution. Although the vast majority of HERVs are now unable to code for retroviral proteins, an unknown number have retained functional transcriptional elements within their LTRs and some of these regulatory sequences have been shown to participate in the transcription of nearby genes. The overall objective of my thesis was to further understand the role of HERVs in human gene regulation by investigating LTRs that provide alternative promoters to cellular genes. When I began my study, three putative endogenous retroviral promoters were identified by screening sequence databases for chimeric (viral-cellular) transcripts. These searches revealed fusion transcripts containing the LTRs of three HERV-E elements linked to the endothelin B receptor (EDNRB), the apolipoprotein C-l (APOC1) and the Opitz syndrome gene, midline 1. To confirm the authenticity of the chimeric transcript and to establish that the mRNAs were transcribed from the retroviral LTRs, we performed 5'RACE and determined the genomic organization for each gene. Our results indicated that the chimeric transcripts were alternatively promoted by the retroviral elements, as they initiated within HERV-E LTRs but spliced into the downstream coding sequence of the cellular genes. To determine the expression pattern and the relative contribution of the retroviral promoter, we quantified the percentage of transcripts which were chimeric in various tissues using real-time PCR. While chimeric APOC1 transcripts could be detected in several tissues tested, the retroviral promoter of EDNRB and MIDI appeared to be placenta-specific. Transient transfection studies supported a role for the EDNRB and MIDI LTRs as strong promoters in placenta and suggested a function for the LTRs as enhancers. Further deletion and hybrid constructs delineated regions within both LTRs necessary for strong promoter activity. Finally, to further characterize the APOC1, EDNRB and MIDI genes, the non-retro viral (native) promoters of these three genes were also analysed. These findings provide further evidence that some endogenous retroviruses have evolved a biological function as transcriptional regulatory elements by contributing alternative promoters to human genes.
Geometry and analysis in non-linear sigma models
Creators: name: Auckly, D.
name: Kapitanski, L.
name: Speight, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The configuration space of a non-linear sigma model is the space of maps from one manifold to another. This paper reviews the authors' work on non-linear sigma models with target a homogeneous space. It begins with a description of the components, fundamental group, and cohomology of such configuration spaces together with the physical interpretations of these results. The topological arguments given generalize to Sobolev maps. The advantages of representing homogeneous space valued maps by flat connections are described, with applications to the homotopy theory of Sobolev maps, and minimization problems for the Skyrme and Faddeev functionals. The paper concludes with some speculation about the possiblility of using these techniques to define new invariants of manifolds.
ANÁLISIS DE MERCADO ECONÓMICO Y FINANCIERO PARA INSTALAR UN CENTRO DE ACOPIO Y ENVASADO DE MIEL EN DELICIAS, CHIHUAHUA, MÉXICO
Creators: name: Soto Zapata, Manuel
name: Magana Magana, Eduardo
name: Kiessling Davison, Christian Mauricio
name: Licon Trillo, Lorena Patricia
name: Hernandez Salas, Javier
name: Villarreal Ramirez, Victor Hugo
name: Soto Zapata, Manuel
name: Magana Magana, Eduardo
name: Kiessling Davison, Christian Mauricio
name: Licon Trillo, Lorena Patricia
name: Hernandez Salas, Javier
name: Villarreal Ramirez, Victor Hugo
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Gather honey center
subject: bottle plant
subject: honey
subject: marketing analysis
subject: economic and financial analysis.

description: The Mexican honey industry is composed by around of 40,000 honey producers with 2 million of beehives. It has been the result that Mexico is the fourth producer and exporter in the world. In the year 2004, Delicias had 14,115 beehives which produced 443.3 tons of honey with a value of 14.8 millions of Mexican pesos. The honey producers have been collected individually and rustic their honey. It has caused that intermediaries joint the honey and sell mainly to the United States marketing. A marketing research was conducted in which 150 questionnaires were applied to a same families, after this a data base was done by using the SPSS version12. 0. As a result, the regional market demand calculated by the year 2011 was 167,397 liters of honey. The bottle center was designed to monthly process 8,000 liters of honey with a capacity of 200 liters/hour. The project was evaluated and indicators were positive as indicated in the next table.
2039: Alfred Cason at Red Cross Hospital Swainsthorpe
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: No story provided.
DIMENSIONES CULTURALES EN LA EMPRESA ESTATAL DE AUTOSERVICIO, SUCURSAL DELICIAS, CHIHUAHUA
Creators: name: Quiroz Guzman, Tamara
name: Valtierrez Angel, David Arnoldo
name: Quiroz Guzman, Tamara
name: Valtierrez Angel, David Arnoldo
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Cultural dimensions
subject: Uncertainty
subject: power
subject: womanliness
subject: masculinity
subject: collectivism
subject: individualism
subject: society.

description: The branch of the supermarkets is seen threatened each day by radical changes and sometimes involuntary those which should be faced in a way practical and direct as if is tried to minority problems. Furthermore, as all in the life changes and evolves, the market is not left behind being this obligator to improve their/its continuous improvement strategies to reach the excellence and the permanency before the competition every time but direct. The present study is carried out in the state self-service company in Delicias City, Chihuahua, who requested the one which anonymity devotes to the foods and products marketing for household. It is I accomplished a study that consisted of measuring the cultural dimensions of the groups that meet in Delicias and the Region, under the theoretical perspective of Hofstede, considering four dimensions: - elimination of the uncertainty, distance in the power, womanliness Vs masculinity, and collectivism Vs individualism, under the premise of the fact that a society is of high context when has a high elimination of the uncertainty, high distance in the power, it is of high values in masculinity and highly collective. Achieving with this study the direct objective that was to know the fundamental essence that governs this company showing thus continuous improvement frames of reference that permitted the efficiency of daily and permanent productivity, through measurement scales that permitted to know the type of society upon comparing it with each one of the cultures.
ALGUNAS APLICACIONES DE LA TEORÍA DE SISTEMAS AL DESARROLLO ORGANIZACIONAL
Creators: name: Climent Bonilla, Juan B.
name: Climent Bonilla, Juan B.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Holism
subject: organizational development
subject: organizational learning
subject: strategic planning
subject: systemic thinking
subject: systems theory
subject: task environment.

description: In the routine of daily activities, and the eagerness to obtain quantitative results, organizations run the risk of becoming absorbed in reductionist notions concerning their task environments (internal and external). This position has counterproductive effects on the learning and renovation capacities of the own organizations, reducing their success and permanence possibilities. The properties and tools of the systemic approach provide information about relevant issues and problems that, in countless cases, are unnoticed by administration and management schemes of rationalist character. Different arguments holding this thesis are exposed through the analysis of several topics and examples.
CONTRIBUCIÓN DEL CAPITAL SOCIAL EN LA MICROEMPRESA RURAL
Creators: name: Ojeda Lopez, Ruth Noemi
name: Mul Encalada, Jennifer
name: Lopez Canto, Leonor Elena
name: Jimenez Diez, Olivia
name: Ojeda Lopez, Ruth Noemi
name: Mul Encalada, Jennifer
name: Lopez Canto, Leonor Elena
name: Jimenez Diez, Olivia
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Social capital
subject: small enterprise
subject: social development
subject: network
subject: learning
subject: knowledge generation and innovation.

description: The present study research identified the level of social capital in a small enterprise and its impact in the company itself. In Latin America, the importance of this concept lies in its relevance because diverse disciplines uses it as a reference setting, today it is used not only as part of political science and sociology, but also as part of the organization theory, economics, human behavior and management. It put emphasis in the relationships among people, among organizations and not in the individuals as isolated subjects. One of its advantages is that the social capital can contribute in the analysis of the small local communities from a social perspective and economical development. Because of the nature of the data handled in this study a qualitative design was adopted, and it was used the method case study, selecting for that matter the small enterprise Koolel Kab S. de R.L. Mi. The results of the study show that the origin of enterprise was an initiative of the partners who share the same objectives. It was verified the presence of social capital, which has permitted them to access to new information, to improve its commercialization, to obtain more funds, to develop new products and improve its production and sales. Based on these, we can conclude that social capital has contributed mainly to improve aspects such as learning and knowledge generation, innovation and management processes.
title: Development of a profile-based electricity demand response estimation method for reducing uncertainty, as informed through a review of aggregator assessment processes and existing estimation methods
Creators: name: Curtis, Mitchell
Publisher: name: University of Reading
Year: 2018

description: This engineering doctorate (EngD) thesis has investigated and improved the understanding of Demand Side Response (DSR) aggregators, DSR estimation methods, and developed a new load profile-based estimation method. The primary motivation for this research was to develop and improve the understanding of different DSR estimation methods and their effectiveness for assessing new sites as suitable for DSR. DSR aggregators play a key role in facilitating DSR uptake by providing over 80% of DSR capacity. Therefore, this research has focused on the estimation methods that a UK-based aggregator uses to determine the suitability of new end users. As an intermediary in the DSR assessment and programme enrolment process, aggregators need to ensure that each end user site is suitable for DSR. Otherwise, both the aggregator and the end user could be negatively impacted if financial returns from participation fail to cover DSR implementation costs. Therefore, this research was undertaken with the aim of better quantifying the uncertainty in DSR estimation methods for new sites, with a view to improving the assessment of their suitability to participate. The research was undertaken in conjunction with KiWi Power Limited, a UK-based DSR aggregator, by establishing and then addressing three interlinking objectives. The first objective mapped out the criteria used by KiWi Power to determine the suitability of an end user’s site for DSR and found that the highest priority for KiWi Power during the assessment process is understanding the DSR potential of a site’s assets. The second objective compared the outcome uncertainty and information input requirements of four existing DSR estimation methods using as the example asset HVAC Chillers and their sub-meter usage data from two UK hotel sites. The comparison results showed a range of uncertainty levels which produced mean average percentage error (MAPE) levels of between 39% to 159%, with the estimation methods costing between £10 to £180 to perform on new sites. The third objective developed and evaluated a new method that uses load profiles of assets to reduce the uncertainty of DSR potential estimation during an aggregator’s assessment process. The new method compares favourably against the existing DSR estimation methods, as it generated the second lowest MAPE level of 46.5% with an estimated usage cost of £26. The new method demonstrated additional benefits of being usable earlier in the assessment process for a new site when compared to the existing methods, and offered the ability to use pre-calculated uncertainty levels enabling users to adjust the estimation outputs based on an organisation’s risk appetite.
Θ^+ and Λ(1520) production in pp reactions at high energies
Creators: name: Narodetskii, I. M.
name: Trusov, M. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We estimate the cross sections for the inclusive production of $Θ^+$ and $Λ(1520)$ in $pp$ collisions at high energy using the $K$ exchange diagrams. We find that inclusive $Θ^+$ production should be at the level of 1 $μ$b at energies~ $\sqrt{s}~\gtrsim~10~{\rm GeV}$. The ratio of $Θ^+(1540)$ to $Λ(1520)$ production cross-sections is $\sim 1%$.
description: Contribution to the PANIC05 Conference, Santa Fe, NM USA, October 2005
Submillimetre galaxies in cosmological hydrodynamical simulations -- an opportunity for constraining feedback models
Creators: name: Hayward, Christopher C.
name: Sparre, Martin
name: Chapman, Scott C.
name: Hernquist, Lars
name: Nelson, Dylan
name: Pakmor, Rüdiger
name: Pillepich, Annalisa
name: Springel, Volker
name: Torrey, Paul
name: Vogelsberger, Mark
name: Weinberger, Rainer
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Submillimetre galaxies (SMGs) have long posed a challenge for theorists, and self-consistently reproducing the properties of the SMG population in a large-volume cosmological hydrodynamical simulation has not yet been achieved. We use a scaling relation derived from previous simulations plus radiative transfer calculations to predict the submm flux densities of simulated SMGs drawn from cosmological simulations from the Illustris and IllustrisTNG projects based on the simulated galaxies' star formation rates (SFRs) and dust masses and compare the predicted number counts with observations. We find that the predicted SMG number counts based on IllustrisTNG are significantly less than observed (more than 1 dex at $S_{850} \gtrsim 4$ mJy). The simulation from the original Illustris project yields more SMGs than IllustrisTNG: the predicted counts are consistent with those observed at both $S_{850} \lesssim 5$ mJy and $S_{850} \gtrsim 9$ mJy and only a factor of $\sim 2$ lower than observed at intermediate flux densities. The redshift distribution of SMGs with $S_{850} > 3$ mJy in IllustrisTNG is consistent with the observed distribution, whereas the Illustris redshift distribution peaks at significantly lower redshift (1.5 vs. 2.8). We demonstrate that IllustrisTNG hosts fewer SMGs than Illustris because in the former, high-mass ($M_{\star} \sim 10^{11} \, \text{M}_{\odot}$) $z \sim 2-3$ galaxies have lower dust masses and SFRs than in Illustris owing to differences in the sub-grid models for stellar or/and active galactic nucleus (AGN) feedback between the two simulations (we unfortunately cannot isolate the specific cause(s) post hoc). Our results demonstrate that because our method enables predicting SMG number counts in post-processing with a negligible computational expense, SMGs can provide useful constraints for tuning sub-grid models in future large-volume cosmological simulations.
description: MNRAS, in press; typo corrected
ANÁLISIS DE RENTABILIDAD DE DOS ALTERNATIVAS DE ALIMENTACIÓN NO CONVENCIONALES EN LA PRODUCCIÓN DE CONEJOS EN EL MUNICIPIO DE TIXPEHUAL, YUCATÁN, MÉXICO
Creators: name: Peniche Ruz, Jorge Alejandro
name: Rejon Avila, Manuel Jesus
name: Valencia Heredia, Eduardo Rene
name: Pech Martinez, Victor Conrado
name: Peniche Ruz, Jorge Alejandro
name: Rejon Avila, Manuel Jesus
name: Valencia Heredia, Eduardo Rene
name: Pech Martinez, Victor Conrado
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agribusiness
subject: Rabbit production
subject: profitability
subject: economic indicators.

description: Profitability of a rabbit's production unit was evaluated through the analysis of two nonconventional food alternatives (mixing tulip forage, ramon forage and balanced food) compared with the conventional food (balanced food). For analyse the profitability, economic assessment indicators were used: the Net Present Value and the Internal Rate of Return. Based in the obtained results, this study concludes that the more profitable alternative was the ramon forage and balanced food.
Construction of coherent states for physical algebraic systems
Creators: name: Hassouni, Y.
name: Curado, E. M. F.
name: Rego-Monteiro, M. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a general state which is an eigenvector of the annihilation operator of the Generalized Heisenberg Algebra. We show for several systems, which are characterized by different energy spectra, that this general state satisfies the minimal set of conditions required to obtain Klauder's minimal coherent states.
description: 15 pages, 3 figures
A lattice study of the pentaquark states
Creators: name: Alexandrou, C.
name: Tsapalis, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a study of the pentaquark system in quenched lattice QCD using diquark-diquark and kaon-nucleon local and smeared interpolating fields. We examine the volume dependence of the spectral weights of local correlators on lattices of size $16^3\times 32$, $24^3\times32$ and $32^3\times 64$ at $β=6.0$. We find that a reliable evaluation of the volume dependence of the spectral weights requires accurate determination of the correlators at large time separations. Our main result from the spectral weight analysis in the pentaquark system is that within our variational basis and statistics we can not exclude a pentaquark resonance. However our data also do not allow a clear identification of a pentaquark state since only the spectral weights of the lowest state can be determined to sufficient accuracy to test for volume dependence. In the negative parity channel the mass extracted for this state is very close to the KN threshold whereas in the positive parity channel is about 60% above.
description: Manuscript expanded, discussion of two-pion system included, a comment regarding Ref.13 was corrected, version to appear in Phys. Rev. D, 19 figures