cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Immuno-modulatory effects of macluraxanthone on macrophage phenotype and function
Creators: name: Ng, Ida May Jen
name: Siau Hui Mah
name: Chua, Caroline Lin Lin
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology

description: Macluraxanthone was previously reported to have many biological activities, including anti-cholinesterase, anti-oxidant, anti-cancer, anti-malarial and anti-inflammatory effects. The aim of the current study was to further characterise the effect of macluraxanthone on human macrophage, a type of immune cell that has been implicated in the development of various inflammatory diseases. The expression of surface markers and cytokine production by THP-1 human macrophages following treatment with macluraxanthone were investigated. Macluraxanthone was shown to promote polarisation of M1-like pro-inflammatory macrophages by increasing the percentage of macrophages expressing CD86, while decreasing their CD14, CD11b and CD80 expression. However, in the presence of the pro-inflammatory stimulus lipopolysaccharide, macluraxanthone significantly decreased TNF-α and IL-10 cytokine production.
PRODUÇÃO E COMERCIALIZAÇÃO DE CARNE DE OVINOS NA REGIÃO METROPOLITANA DE BELO HORIZONTE-MG
Creators: name: Azevedo, Filipe Manuel Ventura Magalhades Da Cruz
name: Antonialli, Luiz Marcelo
name: Azevedo, Filipe Manuel Ventura Magalhades Da Cruz
name: Antonialli, Luiz Marcelo
Publisher: name: Unknown
Year: 2008
Subjects: subject: Livestock Production/Industries
subject: Produção
subject: comercialização
subject: ovinos
subject: Production
subject: commercialization
subject: sheep

description: O objetivo da presente pesquisa foi identificar as potencialidades e dificuldades para a produção e comercialização de carne de ovinos na Região Metropolitana de Belo Horizonte-MG. Quanto à metodologia, a pesquisa classifica-se como de natureza qualitativa e exploratória, além de bibliográfica e de campo. Os dados foram coletados por meio da entrevista pessoal com criadores e um representante da Cooperativa Procordeiro e, além disso, por meio de um questionário estruturado aplicado aos representantes de supermercados e restaurantes. Os resultados da pesquisa evidenciaram certo otimismo sobre a evolução do mercado de carne ovina, entre criadores, cooperativa, supermercadistas e restaurantes. Por outro lado, houve concordância em que o preço da carne é elevado quando comparado aos outros tipos de carnes, como também, existem dificuldades referentes à oferta de um produto de qualidade. Concluiu-se que cabe aos diversos atores envolvidos (criadores, cooperativas, supermercados e restaurantes) envidar esforços para a melhoria do setor, através da melhoria do rebanho, do aproveitamento dos subprodutos, da padronização dos cortes, da qualidade da carne, da maior divulgação e da oferta de novos produtos.---------------------------------------------The objective of the present research was to identify the potentialities and difficulties for the production and commercialization of meat of sheep in the Metropolitan Area of Belo Horizonte-MG. As the methodology, the research is classified as being of qualitative and exploratory nature, besides bibliographical and of field. The data were collected through the personal interview with creators and a representative of the Procordeiro Cooperative and, besides, through a questionnaire structured with representatives of supermarkets and restaurants. The results of the research evidenced certain optimism about the evolution of the market of sheep meat, among creators, cooperative, supermarkets and restaurants. On the other hand, there was agreement that the price of the meat is elevated when compared to the other types of meats, as well as referring difficulties exist to the offer of a quality product. It was ended that fits to the several involved actors - creators, cooperatives, supermarkets and restaurants - to endeavor efforts for the improvement of the section, through the improvement of the flock, of the use of the by-products, of the standardization of the cuts, of the quality of the meat, of the largest popularization and of the offer of new products.
Propylea luteopustulata
Creators: name: POORANI, J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Propylea
Propylea luteopustulata

description: 120. luteopustulata (Mulsant, 1850)
Distribution: India (Andaman Islands, Arunachal Pradesh, Assam, Himachal Pradesh, Jammu & Kashmir, Manipur, Meghalaya, Sikkim, Tripura, Uttarakhand, Uttar Pradesh, West Bengal); Himalayas; Nepal; Bhutan; Pakistan; Myanmar; China; Thailand; Tibet; Taiwan; Vietnam.
description: Published as part of POORANI, J., 2023, An illustrated guide to lady beetles (Coleoptera: Coccinellidae) of the Indian Subcontinent. Part 1. Tribe Coccinellini, pp. 1-307 in Zootaxa 5332 (1) on page 286, DOI: 10.11646/zootaxa.5332.1.1, http://zenodo.org/record/8261502
Comprehensibility : a potential measure for improvement in communication
Creators: name: Visser, Tiffany
Publisher: name: University of British Columbia
Year: 2009

description: The present study examined the relationship between changes in comprehensibility and changes in intelligibility over time, for an individual with dysarthria. Intelligibility has been the primary focus in the assessment and treatment of dysarthria. This study builds on the work of Yorkston, Strand, and Kennedy (1996) to establish comprehensibility as an alternative or additional focus for dysarthria. It does so within the context of the International Classification of Functioning, Disability and Health (ICF) proposed by the World Health Organization (WHO). The WHO is dedicated to ensuring that individuals meet the highest level of biological, psychological, and physiological health. Comprehensibility has the potential to promote increased health and quality of life by focusing on the communication within a dyad rather than focusing only on the speech signal as intelligibility does. This study was based on secondary analysis of audio- and videotaped assessment data. The data were collected at two points in time during the externship of a clinical student, G, with a client E, who had mixed spastic hypokinetic dysarthria. The goal of the present study was to establish the clinical utility of comprehensibility in terms of its application in structured assessment, in addition to the reflection of changes in conversation and in judgments of unfamiliar individuals. Two focus groups were recruited for perceptual judgments of conversations. Results revealed that in structured assessment, changes in comprehensibility occurred in the absence of changes in speech characteristics. Changes in comprehensibility were also reflected in conversation in the form of more efficient breakdown resolution strategies of both members of the dyad and in differences in topic control. Both groups of participants rated the second conversation to be more successful, and slightly more proficient, than the first. Ratings on other elements of the conversation, such as comfort, interest, and effort, however, varied between the two groups. Interpretation of these differences, clinical implications, and potential for future research is discussed.
Gravity Mediation in 6d Brane-World Supergravity
Creators: name: Lee, Hyun Min
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the gravity-mediated SUSY breaking within the effective theory of six-dimensional brane-world supergravity. We construct the supersymmetric bulk-brane action by Noether method and find the nontrivial moduli coupling of the brane F- and D-terms. We find that the low energy Kahler potential is not of sequestered form, so gravity mediation may occur at tree level. In moduli stabilization with anomaly effects included, the scalar soft mass squared can be positive at tree level and it can be comparable to the anomaly mediation.
description: 4 pages, To appear in the proceeding of PASCOS 2005, Gyeongju, Korea, May 30-June 4, 2005
The case of equivalence of low and high energy constraints on Regge vector spectrum in AdS/QCD
Creators: name: Afonin, S. S.
name: Solomko, T. D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The AdS/QCD models are believed to interpolate between low and high energy sectors of QCD. This belief is usually based on observations that many phenomenologically reasonable predictions follow from bounds imposed at high energies although the hypothetical range of applicability of semiclassical bottom-up holographic models is restricted by the gauge/gravity duality to low energies where QCD is strongly coupled. For testing the feasibility of high energy constraints it is interesting to calculate holographically some observable constants at low and high momenta independently and compare. We consider an AdS/QCD model describing the Regge-like linear spectrum of spin-1 mesons in a general form and show that under definite physical assumptions, the low-energy constraints on 2-point correlation functions lead to nearly the same numerical values for the parameters of linear radial spectrum as the high energy ones. The found approximate coincidence looks surprising in view of the fact that such a property for observables is natural for conformal theories while real strong interactions are not conformal.
description: 25 pages, 1 figure, new discussions are added, published version
A PROGRAMAÇÃO MATEMÁTICA POSITIVA COMO INSTRUMENTO DE CALIBRAÇÃO E PRESCRIÇÃO DOS MODELOS DE OFERTA AGRÍCOLA
Creators: name: Fragoso, Rui Manuel De Sousa
name: Carvalho, Maria Leonor Da Silva
name: Henriques, Pedro Damiao De Sousa
name: Fragoso, Rui Manuel De Sousa
name: Carvalho, Maria Leonor Da Silva
name: Henriques, Pedro Damiao De Sousa
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: programação matemática positiva
subject: oferta agrícola
subject: calibração
subject: prescrição
subject: positive mathematical programming
subject: agricultural supply
subject: calibration
subject: prescription

description: Neste artigo avalia-se a capacidade de calibração e de prescrição de resultados de um modelo de oferta agrícola da Região Alentejo. A capacidade de calibração é analisada para o regime de preços e de ajudas agrícolas em vigor no ano 2000, comparando os resultados de diferentes formas de especificação da função dos custos variáveis totais do modelo de programação matemática positiva com os resultados do modelo tradicional de programação linear e com os dados estatísticos observados. Depois de calibrado, o modelo de programação matemática positiva foi utilizado na prescrição dos resultados relativos ao cenário de preços e ajudas em vigor no ano de 2004. Concluiu-se que a programação matemática positiva para além de ser um eficaz instrumento de calibração dos modelos de oferta agrícola, constitui também uma forma de prescrição de resultados. ---------------------------------------------In this paper, calibration and prescription capacity of different types of positive mathematical programming models applied to the Alentejo agricultural sector is analysed. Model results are compared in the 2000 and 2004 agricultural price and subsidies scenarios, regarding optimal combination of activities. Results allow concluding that positive mathematical programming is an efficient instrument on calibration of agricultural supply models, as well as on prescription of its results.
Mixing enhancement induced by viscoelastic micromotors in microfluidic platform
Creators: name: Zizzari, Alessandra
name: Cesaria, Maura
name: Bianco, Monica
name: del Mercato, Loretta L.
name: Carraro, Mauro
name: Bonchio, Marcella
name: Rella, Roberto
name: Arima, Valentina
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Fine manipulation of fluid flows at the microscale has a tremendous impact on mass transport phenomena of chemical and biological processes inside microfluidic platforms. Fluid mixing in the laminar flow regime at low Reynolds is poorly effective due to the inherently slow diffusive mechanism. As a strategy to enhance mixing and prompt mass transport, here, we focus on polyelectrolyte multilayer capsules (PMCs) embodying a catalytic polyoxometalate as microobjects to create elastic turbulence and as micromotors to generate chaotic flows by fuel-fed propulsions. The effects of the elastic turbolence and of the artificial propulsion on some basic flow parameters, such as pressure and volumetric flow rate are studied by a microfluidic set-up including pressure and flow sensors. Numerical-handling and physical models of the experimental data are presented and discussed to explain the measured dependence of the pressure drop on the flow rate in presence of the PMCs. As a practical outcome of the study, a strong decrease of the mixing time in a serpentine microreactor is demonstrated. Unlike our previous reports dealing with capillarity flow studies, the present paper relies on hydrodynamic pumping experiments, that allows us to both develop a theoretical model for the understanding of the involved phenomena and demonstrate a successfully microfluidic mixing application. All of this is relevant in the perspective of developing microobject based methods to overcome microscale processes purely dominated by diffusion with potential improvements of mass trasport in microfluidic platforms.
description: In Press, Corrected Proof
Vitamin D status and vitamin D receptor genotypes in celiac disease: a meta-analysis
Creators: name: Lu, Chao
name: Weihua Zhou
name: Xinjue He
name: Xinxin Zhou
name: Chaohui Yu
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Background: There have been various articles reporting relationship between Vitamin D (VitD) and celiac disease (CeD), but results remain controversial. This study aimed to conduct a meta‐analysis to systematically review and quantify the relationship between VitD and CeD. Moreover, difference in Vitamin D Receptor (VDR) genotypes between CeD patients and controls was also analyzed. Methods: Articles published until July 20, 2019 in the PubMed, MEDLINE, and EMBASE databases were searched. According to the inclusion and exclusion criteria, relevant statistical data were collated and extracted, which were finally analyzed by STATA15.1. Results: 27 articles and 28 sets of data were included. It showed that average 25(OH)D level in CeD patients was 8.36 nmol/L lower than controls (Weighted Mean Difference (WMD) = −8.36, 95% CI = [−14.63, −2.09] nmol/L). After gluten-free diet treatment, we found that average 25(OH)D level in treated patients was 15.6 nmol/L higher than untreated patients (WMD = 15.6, 95% CI = [5.96, 25.23] nmol/L). In addition, 25(OH)D level in treated patients was close to healthy controls (WMD = −2.82, 95% CI = [−6.45, 0.73] nmol/L). However, genetic polymorphism analysis showed that there is no difference in VDR genotypes between CeD and control. Conclusions: CeD had decreased serum 25(OH)D levels, which returned to normal after treatment, suggesting that VitD may play a role in the development of CeD. The directionality of this association cannot be confirmed from cross-sectional studies. Demonstration of a causal role of VitD deficiency in CeD development in future studies could have important therapeutic implications.
Chemical Feedbacks of Pebble Growth: Impacts on CO depletion and C/O ratios
Creators: name: Van Clepper, Eric
name: Bergner, Jennifer B.
name: Bosman, Arthur D.
name: Bergin, Edwin
name: Ciesla, Fred J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Observations of protoplanetary disks have revealed them to be complex and dynamic, with vertical and radial transport of gas and dust occurring simultaneously with chemistry and planet formation. Previous models of protoplanetary disks focused primarily on chemical evolution of gas and dust in a static disk, or dynamical evolution of solids in a chemically passive disk. In this paper, we present a new 1D method for modelling pebble growth and chemistry simultaneously. Gas and small dust particles are allowed to diffuse vertically, connecting chemistry at all elevations of the disk. Pebbles are assumed to form from the dust present around the midplane, inheriting the composition of ices at this location. We present the results of this model after 1 Myr of disk evolution around a 1$M_\odot$ star at various locations both inside and outside of the CO snowline. We find that for a turbulent disk ($α= 10^{-3}$), CO is depleted from the surface layers of the disk by roughly 1-2 orders of magnitude, consistent with observations of protoplanetary disks. This is achieved by a combination of ice sequestration and decreasing UV opacity, both driven by pebble growth. Further, we find the selective removal of ice species via pebble growth and sequestration can increase gas phase C/O ratios to values of approximately unity. However, our model is unable to produce C/O values of $\sim$1.5-2.0 inferred from protoplanetary disk observations, implying selective sequestration of ice is not sufficient to explain C/O ratios $>1$.
description: 20 pages, 16 figures, 3 tables, accepted to ApJ
Model-independent constraints on cosmic curvature: implication from updated Hubble diagram of high-redshift standard candles
Creators: name: Liu, Yuting
name: Cao, Shuo
name: Liu, Tonghua
name: Li, Xiaolei
name: Geng, Shuaibo
name: Lian, Yujie
name: Guo, Wuzheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The cosmic curvature ($Ω_k$) is a fundamental parameter for cosmology. In this paper, we propose an improved model-independent method to constrain the cosmic curvature, which is geometrically related to the Hubble parameter $H(z)$ and luminosity distance $D_L(z)$. Using the currently largest $H(z)$ sample from the well-known cosmic chronometers, as well as the luminosity distance $D_L(z)$ from the relation between the UV and X-ray luminosities of 1598 quasars and the newly-compiled Pantheon sample including 1048 SNe Ia, 31 independent measurements of the cosmic curvature $Ω_k(z)$ can be expected covering the redshift range of $0.07
description: 8 pages, 8 figures, accepted for publication in ApJ
MPEC 2024-T297 : 2024 TW17
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TW17

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Genetic analysis reveals a key role for actin in tip growth in Neurospora crassa
Creators: name: Virag, Aleksandra
Publisher: name: University of British Columbia
Year: 2009

description: The body of a fdamentous fungus, the mycelium, is comprised of elongated cells called hyphae. During hyphal morphogenesis the elongated shape of a hypha is formed by polarized growth. Once initiated, polarized growth is restricted to hyphal tips and branching sites. Although some aspects of polarized growth, such as structural participants, are known, many others, such as control mechanisms, remain unclear. The goal of this study is to establish the position that actin maintains in the hierarchy of events leading to polarized growth in Neurospora crassa. The position of the mutation in the previously isolated mutant ccr-100 was identified by functional complementation, and the actin gene of the mutant was cloned and sequenced. The mutation occurred in the actin gene, and the ccr-100 strain was renamed act1. The act1 mutant had a different actin distribution, Spitzenkorper size and behaviour, and nuclear distribution. Additional actin mutants were obtained by taking advantage of the RIP (Repeat Induced Point mutations) mechanism. The actin genes of the actin RIP mutants were cloned and sequenced, and the mutants were analyzed in the same way as the act1 strain. The actin RIP mutants differed from the wild type in their colony and hyphal morphologies, and actin distributions. Interactions between act1 and seven other genes involved in polarized growth were demonstrated by the presence of epistasis. Based on the obtained results and existing models of tip growth, the Calcium-Actin-Phosphoinositide (CAP) model of tip growth is proposed. Actin has a central role in this model, and is anticipated to control the tip-high Ca2+ concentration gradient.
Propylea quatuordecimpunctata
Creators: name: POORANI, J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Propylea
Propylea quatuordecimpunctata

description: 121. quatuordecimpunctata (Linnaeus, 1758)
Distribution: India (Jammu & Kashmir; Uttarakhand); Pakistan; Bangladesh; Japan; China; Europe; North America.
description: Published as part of POORANI, J., 2023, An illustrated guide to lady beetles (Coleoptera: Coccinellidae) of the Indian Subcontinent. Part 1. Tribe Coccinellini, pp. 1-307 in Zootaxa 5332 (1) on page 286, DOI: 10.11646/zootaxa.5332.1.1, http://zenodo.org/record/8261502
Micrometric Monodisperse Solid Foams as Complete Photonic Bandgap Materials
Creators: name: Florescu, Marian
name: Maimouni, Ilham
name: Morvaridi, Maryam
name: Russo, Maria
name: Gianluc Lui
name: Morozov, Konstantin
name: Cossy, Janine
name: Labousse, Matthieu
name: Tabeling, Patrick
Publisher: name: figshare
Year: 2020
Subjects: subject: 20501 Classical and Physical Optics
subject: FOS: Physical sciences
subject: 29902 Complex Physical Systems
subject: Condensed Matter Physics
subject: 20504 Photonics, Optoelectronics and Optical Communications
subject: 20405 Soft Condensed Matter

description: Solid foams with micrometric pores are used in different fields (filtering, 3D cell culture, etc.) but today, controlling the foam geometry at the pore level, their internal structure, the monodispersity along with their mechanical properties is still a challenge. Existing attempts to create such foams suffer either from slow speed or size limitations (above 80 µm). In this work, by using a temperature-regulated microfluidic process, 3D solid foams with highly monodisperse open pores (PDI lower than 5%), with sizes ranging from 5 to 400 µm, and stiffnesses spanning two orders of magnitude are created for the first time. These features open the way for exciting applications, in cell culture, filtering, optics, etc. Here, the focus is set on photonics. Numerically, these foams are shown to open a 3D complete photonic bandgap, with a critical index of 2.80, thus compatible with the use of rutile TiO2. In the field of photonics, such structures represent the first physically realizable self-assembled FCC (Face-Centered Cubic) structure that possesses this functionality.
Dipolar spin correlations in classical pyrochlore magnets
Creators: name: Isakov, S. V.
name: Gregor, K.
name: Moessner, R.
name: Sondhi, S. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study spin correlations for the highly frustrated classical pyrochlore lattice antiferromagnets with O(N) symmetry in the limit T->0. We conjecture that a local constraint obeyed by the extensively degenerate ground states dictates a dipolar form for the asymptotic spin correlations, at all N $\ne$ 2 for which the system is paramagnetic down to T=0. We verify this conjecture in the cases N=1 and N=3 by simulations and to all orders in the 1/N expansion about the solvable N=infinity limit. Remarkably, the N=infinity formulae are an excellent fit, at all distances, to the correlators at N=3 and even at N=1. Thus we obtain a simple analytical expression also for the correlations of the equivalent models of spin ice and cubic water ice, I_h.
description: 4 pages revtex4
ALTERNATIVAS ESTRATÉGICAS ADOTADAS POR UMA EMPRESA RURAL INSERIDA NO PROGRAMA DE ASSENTAMENTO DIRIGIDO DO ALTO PARANAÍBA (PADAP)
Creators: name: Oliveira, Jair Fernando De
name: Antonialli, Luiz Marcelo
name: Oliveira, Jair Fernando De
name: Antonialli, Luiz Marcelo
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Estratégia
subject: Empresa rural
subject: Administração rural
subject: Strategy
subject: Rural company
subject: rural administration

description: O objetivo da presente pesquisa foi analisar as alternativas estratégicas adotadas por uma empresa rural inserida no Programa de Assentamento Dirigido do Alto Paranaíba (PADAP). Especificamente, buscou-se caracterizar os negócios desenvolvidos pela empresa rural, identificando suas principais estratégias na condução de seus negócios agrícolas. Quanto à metodologia, trata-se de uma pesquisa qualitativa, especificamente um estudo de caso, cujos dados foram coletados por meio da análise documental, entrevista pessoal utilizando-se um questionário semi-estruturado e observação participante. Para análise dos dados utilizou-se a análise de conteúdo. Como resultados observou-se que os negócios agrícolas da empresa pesquisada apresentaram um expressivo crescimento patrimonial devido à alta escala e diversificação da produção. No rol das estratégias adotadas, destacam-se o investimento na eficiência produtiva, econômica e comercial; no planejamento da produção e diversificação de culturas; na administração da produção; integração por meio do agronegócio cooperativo; adoção de inovações tecnológicas na produção; finalmente, a redução de custos. --------------------------------------------The purpose of this study was to analyse the strategic alternatives adopted by one rural company inserted on Alto Paranaíba Guided Subsidence Program (PADAP). It tried to describe the business developed by rural company, identifying their main strategies on their agricultural business care. The methodology used was a qualitative research, specific case study, in which dates were collected by documental analyses, personal interview using a semi-structured questionary and participant observation. For the date analyses, the content analyses were used. The results showed that the agricultural business of the researched company presented a significant patrimonial growing due to the high scale and production diversification. On the adopted strategies roll, it points out the investment on the productive, financial and commercial efficiency; the production planning and the agricultural culture diversification; production administration; integration by the cooperative agribusiness; productive technologic innovations adoption, and finally, the cost reduction.
Accessing the anisotropic non-thermal phonon populations in black phosphorus
Creators: name: Seiler, Hélène
name: Zahn, Daniela
name: Zacharias, Marios
name: Hildebrandt, Patrick
name: Vasileiadis, Thomas
name: Windsor, Yoav William
name: Qi, Yingpeng
name: Carbogno, Christian
name: Draxl, Claudia
name: Ernstorfer, Ralph
name: Caruso, Fabio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We combine femtosecond electron diffuse scattering experiments and first-principles calculations of the coupled electron-phonon dynamics to provide a detailed momentum-resolved picture of the ultrafast lattice thermalization in a thin film of black phosphorus. The measurements reveal the emergence of highly anisotropic non-thermal phonon populations which persist for several picoseconds following excitation of the electrons with a light pulse. Combining ultrafast dynamics simulations based on the time-dependent Boltzmann formalism and calculations of the structure factor, we reproduce the experimental data and identify the vibrational modes primarily responsible for the carrier relaxation via electron-phonon coupling and the subsequent lattice thermalization via phonon-phonon scattering. In particular, we attribute the non-equilibrium lattice dynamics of black phosphorus to highly-anisotropic phonon-assisted scattering processes, which are primarily mediated by high-energy optical phonons. Our approach paves the way towards unravelling and controlling microscopic energy-flow pathways in two-dimensional materials and van der Waals heterostructures, and may also be extended to other non-equilibrium phenomena involving coupled electron-phonon dynamics such as superconductivity, phase transitions or polaron physics.
Análise da convergência da produtividade da mão-de-obra agropecuária entre os estados brasileiros: aplicação de matrizes de Markov, 1990-2000
Creators: name: Fochezatto, Adelar
name: Stulp, Valter Jose
name: Fochezatto, Adelar
name: Stulp, Valter Jose
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: agricultural
subject: labor productivity
subject: convergence
subject: Markov model

description: The study analyzes the convergence of the labor productivity in the Brazilian agricultural sector in the nineties, comparing it with its productivity in the other sectors and projecting its future behavior through Markov matrices. The results indicate that the Brazilian states are diverging in the labor productivity in the agricultural sector. Some states will move to a high level and others to a low level of labor productivity. In five of the other sectors of the Brazilian economy there will be a convergence of the states with regard to the labor productivity. In three of these five sectors the states will converge to a low level of labor productivity; in one sector they will converge to two classes of low productivity and in another sector the states will move to a class of high productivity. The time required for convergence of the Brazilian states is very long; indicating that the economic factors prevailing during the period on which the analysis is based did not impact very strongly on this process.
DEVELOPMENT OF MUSIC TOURISM AMONG STUDENTS.
Creators: name: Abdumannatova, Aziza
Publisher: name: Zenodo
Year: 2024

description: In order to develop tourism, special economic zones are being created in our republic, tourist clusters are being created, strategic partners are being attracted to the sector, tourism infrastructure and tourism industry are being developed rapidly. Also, bold steps are being taken to rationally use the tourism potential of the regions, to produce national tourist products and bring them to the world market.
A cyclic stress softening model for the Mullins effect
Creators: name: Rickaby, S. R.
name: Scott, N. H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences
subject: 74B20, 74D10, 74L15

description: In this paper the inelastic features of stress relaxation, hysteresis and residual strain are combined with the Arruda-Boyce eight-chain model of elasticity, in order to develop a model that is capable of describing the Mullins effect for cyclic stress-softening of an incompressible hyperelastic material, in particular a carbon-filled rubber vulcanizate. We have been unable to identify in the literature any other model that takes into consideration all the above inelastic features of the cyclic stress-softening of carbon-filled rubber. Our model compares favourably with experimental data and gives a good description of stress-softening, hysteresis, stress relaxation, residual strain and creep of residual strain. Keywords: Mullins effect, stress-softening, hysteresis, stress relaxation, residual strain, creep of residual strain. MSC codes: 74B20, 74D10, 74L1
description: 25 pages, 16 figures
Concorrência e estratégias de precificação no sistema agroindustrial do leite
Creators: name: Azevedo, Paulo Furquim De
name: Politi, Ricardo Batista
name: Azevedo, Paulo Furquim De
name: Politi, Ricardo Batista
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: competition
subject: price transmission
subject: dairy industry.

description: This article aims to evaluate the degree of competition in the dairy industry, in the relevant markets of Ultra High Temperature (UHT) milk and pasteurized milk, by means of price transmission and marketing margin behavior. The empirical analysis is based on the model formerly proposed by Houck (1977) and latter detailed by Carman and Sexton (2005).This model analyzes separately the effects of input price increases and reductions on consumer prices, allowing for estimations of price transmission and margin behavior. Cepea-USP and Fipe provide, respectively, weekly input prices and consumer prices, both for the period of December 1999 to December 2005. As a major result, the degree of competition in the UHT relevant market was found to be robustly different from the pasteurized milk market. Whereas in the first price transmission corroborates the hypothesis of competitive market, in the pasteurized milk market there is evidence of imperfections both in price transmission and margin behavior. The outstanding increase of UHT milk consumption has fostered competition and liquidity in the dairy industry and milk distribution, allowing for faster price transmission throughout the production chain. Nevertheless fixed markup pricing found in the UHT relevant market shows that dairy industry and milk distribution have some degree of market power so as nominal changes in input prices are passed through consumers in a larger magnitude.
The Role of hidden ambiguities in the Linear Sigma Model with fermions
Creators: name: Hiller, Brigitte
name: Mota, A. L.
name: Nemes, M. C.
name: Osipov, Alexander A.
name: Sampaio, Marcos
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The $U_L(3)\times U_R(3)$ Linear Sigma Model (LSM) with quark degrees of freedom is used to show that radiative corrections generate undetermined finite contributions. Their origin is related to surface terms which are differences between divergent integrals with the same degree of divergence. The technique used to detect these ambiguities is an implicit regularization on basic divergent integrals that do not depend on external momenta. We show that such contributions are absorbed by renormalization or fixed by symmetry requirements. The general expression for surface terms is derived. Renormalization group coefficients are calculated, as well as relevant observables for this model, such as $f_π$, $f_k$ and the pion and kaon form factors.
description: Typographical errors corrected, version to appear in Nuc. Phys. A
Protothea quadripunctata
Creators: name: POORANI, J.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Protothea
Protothea quadripunctata

description: 123. quadripunctata (Mulsant, 1853a)
Distribution: India (Assam, Nagaland, Sikkim); Vietnam; Thailand; Myanmar.
description: Published as part of POORANI, J., 2023, An illustrated guide to lady beetles (Coleoptera: Coccinellidae) of the Indian Subcontinent. Part 1. Tribe Coccinellini, pp. 1-307 in Zootaxa 5332 (1) on page 287, DOI: 10.11646/zootaxa.5332.1.1, http://zenodo.org/record/8261502
Leptogenesis in Minimal Left-Right Symmetric Models
Creators: name: Babu, K. S.
name: Bachri, A.
name: Aissaoui, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze lepton asymmetry induced in the decay of right--handed neutrinos in a class of minimal left--right symmetric models. In these models, which assume low energy supersymmetry, the Dirac neutrino mass matrix is proportional to the charged lepton mass matrix. As a result, lepton asymmetry is calculable in terms of 9 parameters, all measurable in low energy neutrino experiments. By solving the Boltzmann equations numerically we show that adequate baryon asymmetry is generated in these models. This however places significant constraints on the light neutrino parameters. We find tan^2θ_{12} = m_1/m_2 and θ_{13} = (0.01 - 0.07) for the neutrino oscillation angles, and β= α+ π/2 for the Majorana phases.
description: 25 pages, 3 eps figures, references added
The Economic Feasibility of Energy Sugar Beet Biofuel Production in Central North Dakota
Creators: name: Maung, Thein A.
name: Gustafson, Cole R.
name: Maung, Thein A.
name: Gustafson, Cole R.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural Finance
subject: Resource /Energy Economics and Policy
subject: Ethanol
subject: Sugar beets
subject: Molasses
subject: Net Present Value
subject: Risk

description: This study examines the financial feasibility of producing ethanol biofuel from sugar beets in central North Dakota. Under the Energy Independence and Security Act (EISA) of 2007, biofuel from sugar beets uniquely qualifies as an “advanced biofuel”. EISA mandates production of 15 billion gallons of advanced biofuels annually by 2022. A stochastic simulation financial model was calibrated with irrigated sugar beet data from central North Dakota to determine economic feasibility and risks of production for a 10MGY (million gallon per year) and 20MGY ethanol plant. Study results indicate that feedstock costs, which include sugar beets and beet molasses, account for more than 70% of total production expenses. The estimated breakeven ethanol price for the 20MGY plant is $1.52 per gallon and $1.71 per gallon for the 10MGY plant. Breakeven prices for feedstocks are also estimated and show that the 20MGYplant can tolerate greater ethanol and feedstock price risk than the 10MGY plant. Our results also show that one of the most important factors that affect investment success is the price of ethanol. At an ethanol price of $1.84 per gallon, and assuming other factors remain unchanged, the estimated net present value (NPV) of the 20MGY plant is $41.54 million. By comparison, the estimated NPV of the 10MGY plant is only $8.30 million. Other factors such as changes in prices of co-products and utilities have a relatively minor affect on investment viability.
Studying complex manifolds by using groups $G_{n}^{k}$ and $Γ_{n}^{k}$
Creators: name: Manturov, Vassily Olegovich
name: Wan, Zheyan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 51H20, 20F36, 57M25, 57M27

description: In the present paper, we study several complex manifolds by using the following idea. First, we construct a certain moduli space and study the fundamental group of this space. This fundamental group is naturally mapped to the groups $G_{n}^{k}$ and $Γ_{n}^{k}$. This is the step towards "complexification" of the $G_{n}^{k}$ and $Γ_{n}^{k}$ approach first developed in \cite{2019arXiv190508049M}.
description: 8 pages, comments are welcome!
Isocurvature constraints on gravitationally produced superheavy dark matter
Creators: name: Chung, Daniel J. H.
name: Kolb, Edward W.
name: Riotto, Antonio
name: Senatore, Leonardo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the isocurvature perturbations imply that the gravitationally produced superheavy dark matter must have masses larger than few times the Hubble expansion rate at the end of inflation. This together with the bound on tensor to scalar contribution to the CMB induces a lower bound on the reheating temperature for superheavy dark matter to be about 10^7 GeV. Hence, if the superheavy dark matter scenario is embedded in supergravity models with gravity mediated SUSY breaking, the gravitino bound will squeeze this scenario. Furthermore, the CMB constraint strengthens the statement that gravitationally produced superheavy dark matter scenario prefers a relatively large tensor mode amplitude if the reheating temperature must be less than 10^9 GeV.
description: 29 pages, 2 figures
Modelling and Synchronisation of Delayed Packet-Coupled Oscillators in Industrial Wireless Sensor Networks
Creators: name: Zong, Yan
name: Dai, Xuewu
name: Canyelles-Pericas, Pep
name: Busawon, Krishna
name: Binns, Richard
name: Gao, Zhiwei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, a Packet-Coupled Oscillators (PkCOs) synchronisation protocol is proposed for time-sensitive Wireless Sensor Networks (WSNs) based on Pulse-Coupled Oscillators (PCO) in mathematical biology. The effects of delays on synchronisation performance are studied through mathematical modelling and analysis of packet exchange and processing delays. The delay compensation strategy (i.e., feedforward control) is utilised to cancel delays effectively. A simple scheduling function is provided with PkCOs to allocate the packet transmission event to a specified time slot, by configuring reference input of the system to a non-zero value, in order to minimise the possibility of packet collision in synchronised wireless networks. The rigorous theoretical proofs are provided to validate the convergence and stability of the proposed synchronisation scheme. Finally, the simulations and experiments examine the effectiveness of PkCOs with delay compensation and scheduling strategies. The experimental results also show that the proposed PkCOs algorithm can achieve synchronisation with the precision of $26.3μs$ ($1$ tick).
Economia política da disputa por terras em Minas Gerais
Creators: name: Araujo Junior, Ari Francisco De
name: Shikida, Claudio
name: Alvarenga, Patricia Silva
name: Araujo Junior, Ari Francisco De
name: Shikida, Claudio
name: Alvarenga, Patricia Silva
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: agrarian development
subject: political economy
subject: regional economics

description: The article analyzes the determinants of the probability of dispute over land (conflicts, occupations and settlement projects) in the Brazilian state of Minas Gerais. Through the use of a logit model, we found that the main influences are political and economical ones. Apparently, the behavior of the agrarian reform’s supporters follows the political incentive, with fewer occurrences of conflicts in towns governed by political allies. By other hand, the economical determinants - degree of poverty and the economic growth - have negative impacts on it.
Supplementary Material 1. Glaciomarine sequence stratigraphy in the Mississippian Río Blanco Basin, Argentina, southwestern Gondwana. Basin analysis and palaeoclimatic implications for the Late Paleozoic Ice Age during the Tournaisian.
Creators: name: Ezpeleta, Miguel
name: Rustán, Juan José
name: Balseiro, Diego
name: Dávila, Federico Miguel
name: Dahlquist, Juan Andrés
name: Vaccari, Norberto Emilio
name: Sterren, Andrea Fabiana
name: Prestianni, Cyrille
name: Cisterna, Gabriela Adriana
name: Basei, Miguel
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Supplementary Material 1: Detailed stratigraphic sections of the Agua de Lucho and Cerro Tres Cóndores Formations in the Agua Quemada Syncline, SW Sierra de Las Minitas (see Fig. 1 for location).
Determinantes dos arranjos contratuais1: O caso da transação produtor-processador de carne bovina no Uruguai
Creators: name: Mondelli, Mario P.
name: Zylbersztajn, Decio
name: Mondelli, Mario P.
name: Zylbersztajn, Decio
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Vertical Coordination
subject: Beef System
subject: Contractual arrangement
subject: Transaction Cost Economics

description: What are the determinants of the commercial channel choice in the beef producers-processors transactions? The question refers to the coordination and production control problem associated to changes in consumer’s awareness of specific attributes in food products. Two contractual arrangements coexist in this transaction: direct-contracting and broker-induced transactions Transaction Cost Economic offers helpful insights to understand the reason for the development and adaptations of different contractual arrangement moved by transaction cost economizing perspective. The empirical analysis is focused in the Uruguayan beef agro-industrial system. Analysis integrates (i) institutional and organizational changes in the beef industry; (ii) based on the analysis of the transaction dimensions (frequency, asset specificity and uncertainty) we address hypothesis of the determinants of the contractual arrangement in the beef producers-processors transaction; and (iii) we run a statistical test of the hypotheses based on a logit model. We used a panel data with producers-processors transaction from Uruguayan Agricultural Bureau (77,000 transactions). We confirm the hypotheses of the determinants of the contractual arrangement choice. The probability of a transaction being aligned with the direct contractual arrangement increase in transaction with higher asset specificity (i.e., young steer), lower distance between the producer and the processor, and with higher frequency of transaction.
Managing Quantity, Quality and Timing in Cane Sugar Production: Ex Post Marketing Permits or Ex Ante Production Contracts?
Creators: name: Patlolla, Sandhyarani
name: Patlolla, Sandhyarani
Publisher: name: Unknown
Year: 2010
Subjects: subject: Industrial Organization
subject: contracts
subject: sugarcane
subject: India

description: Sugarcane produced in India is utilized to manufacture three sweetening agents: sugar, gur, and khandsari. Sugar processors must comply with a floor price for cane, but gur and khandsari producers are exempt from the floor price. Thus, any effect of the sugar processor’s choice of procurement method on the incentives facing farmers will depend on the expected cane price in these competing unregulated markets. In Andhra Pradesh (AP), India, private sugar processors use an unusual form of vertical coordination. Rather than conventional pre-planting contracts, they issue ‘permits’ to selected cane growers a few weeks before harvest. I explore the potential motivations behind this choice of sugar processors and hypothesize that the probabilistic permit system is the low-cost way of procuring high-quality cane. I develop a theoretical model of the AP cane procurement market that incorporates the floor price policy that applies only to the cane used for sugar processing, and compare processor profits under the probabilistic ex post permit system and ex ante production contracts. The model predicts that both the quality of cane procured and the profits from unit cane purchase are higher when the processor uses ex post permits. These gains come at the expense of increased cultivation costs incurred by the farmers. I test and confirm the predictions of the theoretical model using data from a household survey conducted in fall 2008.