cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Cross-Spectral Analysis For Spatial Point-Lattice Processes
Creators: name: Kanaan, Mona N.
Publisher: name: The Open University
Year: 2000

description: In this study, we explore the relationship between the components of a hybrid process consisting of a spatial point process arid a lattice process using two-dimensional spectral techniques. Simulated spatial point-lattice patterns are used to demonstrate how the different cross-spectral statistics can reveal correlation between the two components. A method to adjust for jumps that normally occur in the cross-spectral phase statistic is then proposed. Such adjustment is needed to enable us to calculate the slope of the phase spectrum which measures the shift between the two components. Several methods to calculate the slope are investigated. Asymptotic properties of the cross-spectral statistics are derived and their confidence intervals estimated. A test that the components are independent is described. In a study region, lattice processes are observed at regular grids whereas point, processes can be observed anywhere. In order to account for discrepancies that. might arise due to this, methods to discretise the point pattern are suggested. Cross-spectral techniques are then applied to analyse the joint process of the discretised point pattern and the lattice pattern. Finally, we apply the techniques suggested above to study the joint properties of two data sets. The first consists of altitude data of a region in a rain forest in French Guyana together with the locations of a number of tree species in that region. The second set consists of altitude data of the Sahel region of Africa together with location of storms and some of their characteristics. In order to incorporate the storm characteristics in the analysis, cross-spectral tools used to analyse two components are extended to three components.
Assessment of regional diversity correlations of environmental and organisational - production factors in Polish agriculture
Creators: name: Kopiński, Jerzy
name: Matyka, Mariusz
name: Kopiński, Jerzy
name: Matyka, Mariusz
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: agriculture
subject: natural conditions
subject: organisational conditions
subject: regional differences.

description: The paper assesses regional differences in the interactions between the natural and organisational factors in Polish agriculture. The analysis carried out in the dynamic approach covers the 2002-2013 period, and the indicators for individual voivodeships are compared to the average for Poland as a reference system. The research, in addition to descriptive statistics, uses also grouping of voivodeships with the use of cluster analysis with method of k-means. Conducted research indicates that the direction and strength of the interaction of selected environmental and organisational factors is differentiated between Polish regions. The observed nationwide trends and interdependencies of analysed natural and organisational factors do not reflect properly the scale and effects of changes in different regions of the country. Because of the multifactor determinants of agricultural production, consequences of their impact on the regions are highly different. This is manifested by realization, in various parts of Poland, of different models of agricultural production, which are characterised by different levels of organisation and intensity. The analysis indicates the need for regionalisation of national agricultural policy, including the Rural Development Programme. This approach should contribute to more effective spending of funds addressed to agriculture and rural areas by optimising the process of their development.
Additional file 2 of Fetal sex and maternal pregnancy outcomes: a systematic review and meta-analysis
Creators: name: Broere-Brown, Zoe A.
name: Adank, Maria C.
name: Benschop, Laura
name: Tielemans, Myrte
name: Muka, Taulant
name: Gonçalves, Romy
name: Bramer, Wichor M.
name: Josje D Schoufour
name: Voortman, Trudy
name: Steegers, Eric A. P.
name: Franco, Oscar H.
name: Schalekamp-Timmermans, Sarah
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2. Newcastle-Ottawa Quality Assessment Scale.
Value of production versus inputs and costs of energy in agriculture
Creators: name: Pawlak, Jan
name: Pawlak, Jan
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural Finance
subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Livestock Production/Industries
subject: energy
subject: cost
subject: input
subject: agriculture
subject: production
subject: correlation

description: In 2004-2014, cost of energy consumed in Polish agriculture (in current prices) increased by 50.9%, and energy inputs in TJ decreased by 6.9%. At the same time, value (in current prices) of global agricultural production increased by 51.9%, final production – by 65.6% and commercial production – by 67.7%, and in fixed prices – respectively, by 14.7%, 19.4% and 23.5%. Gross value added in current prices was by 61.7%, and in fixed prices by 7.8% higher than in 2004. Correlation between the value of production and costs of energy in agriculture (in current prices) is positive and the strongest when gross value added is the measure of agricultural production. The adjustment of the model (linear function) describing correlation was good or satisfactory, depending on the adopted category of agricultural production. Whereas the correlation between value of agricultural production in fixed prices and energy inputs in TJ is negative. The model adjustment is in this case unsatisfactory, no matter which category of agricultural production was taken into account.
High Resolution Observations of the Near-Infrared Emission from NGC 6822 Hubble V
Creators: name: Lee, Sungho
name: Pak, Soojong
name: Lee, Sang-Gak
name: Davis, Christopher J.
name: Kaufman, Michael J.
name: Mochizuki, Kenji
name: Jaffe, Daniel T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We observed Hubble V, the brightest HII region complex in the dwarf irregular galaxy NGC 6822, at near-infrared (1.8--2.4 um) wavelengths using the Cooled Grating Spectrometer 4 (CGS4) at the United Kingdom Infra-Red Telescope (UKIRT). The line emission maps of Hubble V show the typical structure of a photo-dissociation region (PDR) where an ionized core, traced by compact He I emission (2.0587 um) and Br_gamma emission (2.1661 um), is surrounded by an outer layer traced by molecular hydrogen (H_2) emission. The measured line ratios of H_2 2-1 S(1) (2.2477 um) / 1-0 S(1) (2.1218 um) from 0.2 to 0.6 and the un-shifted and un-resolved line profiles suggest that the H_2 emission originates purely from a PDR. By comparing the H_2 results with a PDR model, we conclude that Hubble V includes dense (10^{4.5} cm^{-3}) and warm PDRs. In this environment, most of the H_2 molecules are excited by far-UV photons (with a field strength of 10^{2-4} times that of the average interstellar field), although collisional processes de-excite H_2 and contribute significantly to the excitation of the first vibrational level. We expect that Hubble V is in the early stage of molecular cloud dissolution.
description: 9 pages, 3 figures, MNRAS in press, Replacement: much condensation in the length but small change in the conclusions
Trends of farms restructuring in Bulgaria
Creators: name: Koteva, Nina
name: Koteva, Nina
Publisher: name: Unknown
Year: 2016
Subjects: subject: Community/Rural/Urban Development
subject: Political Economy
subject: Production Economics
subject: farm
subject: restructuring
subject: Bulgarian farms
subject: economic potential
subject: farms specialization

description: The question for the restructuring is extremely comprehensive, as an important part of it is the organization-economic restructuring of agriculture. The outgoing farm changes are very significant. The implementation of European policy, destined for higher economic, technologic and market level of agriculture than ours, generates some positive trends, but also a lot of problems. Without answer remains the question about the reflection of structural changes on farms’ economic state.
Flux creep in type-II superconductors: self-organized criticality approach
Creators: name: Mints, R. G.
name: Papiashvili, Ilya
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider the current density distribution function of a flux creep regime in type-II superconductors by mapping the flux creep process to the dynamics of a model with a self-organized criticality. We use an extremal Robin Hood type model which evolves to Been's type critical state to treat magnetic flux penetration into a superconductor and derive an analog of the current-voltage characteristics in the flux creep region.
description: 7 pages, 7 figures
تقدير وتحليل دالة استجابة مساحة البرسيم في مصر
Creators: name: Soliman, Ibrahim
name: Gaber, Mohamed
name: Safwat, Maha
name: Soliman, Ibrahim
name: Gaber, Mohamed
name: Safwat, Maha
Publisher: name: Unknown
Year: 2016
Subjects: Crop Production/Industries

description: This study delt with assessment and analysis of response function for berseem area in Egypt during the period (1975-2014). The study applied the Nalove model. Berseem (Egyptian Colver) is the main feed source for livestock in Egypt. However it competes with wheat crop, the main food item in Egyptian diet, on agricultural land in winter lug in Egypt. The study concluded from analyzing the supply response of the annual Egyptian clover area that the most important factor in determining such area is the number of milking heads per farm holding, and the buffalo milk price. This result confirms what previous studies have highlighted. Such studies, cited that the Egyptian farmer is keen on holding at least one dairy cow to enable him to earn finance for his daily expenses and it is preferably to be a milking buffalo, even if he does not hold a farm area. He (She) does that to keep on acquisition of the social status in addition to get daily liquidity and reimbursement obligations of fixed expenses, such as rent of his agricultural land. The daily income is generated from selling milk and selling the weaned calves. A recent study has confirmed these trends, where it founded that farm income from animal production is the economic activity which, crosses the small holder farms of less than five feddan (92% of the farm holders in Egypt) the absolute poverty line – 1-$ per capita a day, while crossing the poverty line of $ 2 a day is reached via the extra income from the household earnings from working outside the agricultural sector. Although estimates of the supply elasticity coefficients in either short or long run showed that the net return from one acre of wheat reduces the area of berseem at a rate much higher than the expected increase in the price of raw milk, and although the growth rate in the price of buffalo milk at the farm gate was less than that of the rate of growth in profit from one acre of wheat, the clover acreage in Egypt has decreased only by 4% per year during the period (1974-2014). This was due to the social dimension in the acquisition of farmers for dairy cattle, despite of the farm size, and also reflected what recent studies have shown that dairy market in Upper Egypt is not as active as in Lower Egypt, which has a share in weakened the quantitative impact of the price of buffalo milk on increasing the aggregate area of Egyptian clover. The study recommends to raising productivity of berseem from 24 tons per acre to 45 tons per acre, according to the results of the experiments conducted in the Research Institute of crop in Egypt, which would reduce the production costs per one acre of berseem and also reduces the increase in its area in favor of wheat in winter lug.
description: Zagazig Journal of Agricultural Research, Vol (43), No (5), September 2016.
Phenomenological Consequences of Soft Leptogenesis
Creators: name: Kashti, Tamar
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Soft supersymmetry breaking terms involving heavy singlet sneutrinos can be the dominant source of leptogenesis. The relevant range of parameters is different from standard leptogenesis: a lighter Majorana mass, M < 10^9 GeV (allowing a solution of the gravitino problem), and smaller Yukawa couplings, Y_N < 10^{-4}. We investigate whether the various couplings of the singlet sneutrinos, which are constrained by the requirement of successful `soft leptogenesis', can have observable phenomenological consequences. Specifically, we calculate the contributions of the relevant soft supersymmetric breaking terms to the electric dipole moments of the charged leptons and to lepton flavor violating decays. Our result is that these contributions are small.
description: 11 pages, 1 figure; v2: an additional contribution is considered (modifying: fig. 1, eq. 10-13, 22) and a reference added. Conclusions unchanged
Note on the generalized Hansen and Laplace coefficients
Creators: name: Laskar, Jacques
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recently, Breiter et al (2004) reported the computation of Hansen coefficients $X_k^{γ,m}$ for non integer values of $γ$. In fact, the Hansen coefficients are closely related to the Laplace $b_{s}^{(m)}$, and generalized Laplace coefficients $b_{s,r}^{(m)}$ (Laskar and Robutel, 1995) that do not require $s,r$ to be integers. In particular, the coefficients $X_0^{\g,m}$ have very simple expressions in terms of the usual Laplace coefficients $b_{\g+2}^{(m)}$, and all their properties derive easily from the known properties of the Laplace coefficients.
description: 9/11/2004
Grau de Concorrência e Poder de Mercado nas Exportações de Leite em Pó para o Brasil
Creators: name: Pinha, Lucas Campio
name: Braga, Marcelo José
name: Campos, Antônio Carvalho
name: Pinha, Lucas Campio
name: Braga, Marcelo José
name: Campos, Antônio Carvalho
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agribusiness
subject: Competition
subject: Market power
subject: Skimmed milk powder
subject: Whole milk powder
subject: Export.

description: There are indications that Argentina and Uruguay act as oligopolists and exercise market power in exports of milk powder to Brazil. These two countries export almost all of these by-products to Brazil, while there is a regionalization of international trade in these products, restricting the competition with other countries. The main objective of this paper is to verify the degree of competition in exports of whole milk powder and skimmed milk powder to Brazil by the existence of market power practiced by the exporting countries. For this purpose, the residual demand model was used, estimated by three different methods: two-stage least square, seemingly unrelated regressions and three-stage least squares. The results indicate that Uruguay acts as oligopolistic and exercises market power in both markets, whereas Argentina acts only in the case of whole milk powder. This suggests that Brazil should increase the competition in milk powder imports, since the prices would tend to be smaller and consumers would benefit in this aspect.
Baryon magnetic moments in the external field method
Creators: name: Lee, F. X.
name: Kelly, R.
name: Zhou, L.
name: Wilcox, W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present a calculation of the magnetic moments of the baryon octet and decuplet using the external field method and standard Wilson gauge and fermion actions in the quenched approximation. Progressively smaller static magnetic fields are introduced on a $24^4$ latticeat beta=6.0 and the pion mass is probed down to about 500 MeV. Magnetic moments are extracted from the linear response of the masses to the external field.
description: Lattice2004 (weak matrix elements), 3 pages, 8 figures
On the two-loop radiative origin of the smallest neutrino mass and the associated Majorana CP phase
Creators: name: Xing, Zhi-zhong
name: Zhang, Di
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Given a massless neutrino at a superhigh energy scale $Λ$ (e.g., in the minimal seesaw model with only two heavy Majorana neutrinos), we calculate quantum corrections to its initially vanishing mass $m^{}_1$ (or $m^{}_3$) and the associated Majorana CP phase $ρ$ (or $\varrho$) at the Fermi scale $Λ^{}_{\rm F}$ by means of the two-loop renormalization-group equations (RGEs) in the standard model and with the help of the latest neutrino oscillation data. The numerical results obtained from our analytical approximations are in good agreement with those achieved by numerically solving the two-loop RGEs. In particular, we confirm that a nonzero value of $m^{}_1$ (or $m^{}_3$) of ${\cal O}(10^{-13})$ eV at $Λ^{}_{\rm F}$ can be radiatively generated from $m^{}_1 =0$ (or $m^{}_3 =0$) at $Λ\simeq 10^{14}$ GeV in the SM, and find that $ρ$ (or $\varrho$) may accordingly acquire an appreciable physical value. As a nontrivial by-product, the evolution of all the other (initially nonzero) flavor parameters of massive neutrinos is studied both analytically and numerically, by just keeping their leading (i.e., one-loop) RGE-induced effects.
description: 19 pages, 7 figures, 2 tables, the version accepted for publication in PLB
title: Does An MBA Help Women? : A Comparative Study Of The Career Progress And Labour Market Position Of Part Time Male And Female MBA Graduates
Creators: name: Simpson, Ruth
Publisher: name: The Open University
Year: 1998

description: This thesis aims to assess the extent to which an MBA helps women and to ascertain whether significant barriers persist, despite their qualification to their career development. It takes as its frame of reference the sex difference approach within liberal feminism, which argues that key differences between men and women explain their differential career progress, and the organisation- structure approach within radical feminism which emphasises the detrimental effects of structural features of the organisation and of power relations. To this effect a survey of 221 male and female MBA graduates was conducted. Results suggest that the extent to which an MBA helps women depends on the type of benefit in question. The MBA is beneficial to women in terms of intrinsic career factors such as credibility and confidence. The qualification also gives them higher personal status within the context of the formal organisation. However, men appear to benefit more than women in terms of extrinsic career factors such as pay and management level in that they progress further in their careers subsequent to the MBA. In terms of the sex difference approach, differences in individual characteristics between men and women were not found to be sufficiently strong to be able to explain their differential career progress. Instead women MBAs were found to experience hidden barriers relating to attitudes and culture and to be particularly disadvantaged within the informal organisational context. The thesis argues that the way these hidden barriers located within the informal context impact on women's progress within the formal organisation (the informal externality effect) explains their slower career progress subsequent to the MBA in relation to men. The level of disadvantage within the formal context created by these hidden barriers are likely to be greater if the organisation is male dominated, if the gender imbalance occurs at senior levels and if women occupy traditionally female and non powerful roles.
Competitividade da Produção de Palmito de Pupunha no Espírito Santo e em São Paulo
Creators: name: Sousa, Eliane Pinheiro De
name: Soares, Naisy Silva
name: Cordeiro, Sidney Araujo
name: Silva, Márcio Lopes Da
name: Sousa, Eliane Pinheiro De
name: Soares, Naisy Silva
name: Cordeiro, Sidney Araujo
name: Silva, Márcio Lopes Da
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Pejibaye palm heart
subject: Political Analysis Matrix
subject: forest policies
subject: Brazil

description: This work aims to analyze the competitiveness of pejibaye palm heart production in Espírito Santo and São Paulo states by applying the Policy Analysis Matrix (PAM). Results show that the private and social profitabilities of pejibaye palm heart production and trading were positive in both states and are higher than those obtained by traditional crops, such as soybean, and by forest products, such as natural rubber. São Paulo production was more profitable, being thus more competitive than Espirito Santo. However, these profitabilities could have been higher if producers were not exposed to negative effects of distorted public policies.
Impactos da Política Americana de Estímulo aos Biocombustíveis sobre a Produção Agropecuária e o Uso da Terra
Creators: name: Gurgel, Angelo Costa
name: Gurgel, Angelo Costa
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Ethanol
subject: agriculture
subject: land use
subject: general equilibrium.

description: This paper assesses the impacts of the increase in the ethanol demand in Brazil and in the United States on the agricultural production and land use. A global economic model representing agricultural and energy markets, trade among countries, ethanol supply and the demand in Brazil and in the US and changes in the land use is used. We simulate increases in the ethanol demand in Brazil and in the US to reflect the US policy and forecasts about the Brazilian demand for the upcoming decade. Results suggest a specialization in sugarcane and ethanol production in Brazil and decreases in other agricultural commodities. The area cultivated with sugarcane would move up from 5 million to 15 to 20 million hectares in 2020, replacing areas of pasture, other crops and forest. The Cerrado region in Brazil would lose 2.5 million hectares to agriculture, while tropical forests would only be considerably affected if the US trade barriers on ethanol imports were reduced.
Tracing the development of Kumi-Daiko in Canada
Creators: name: Kobayashi, Kim
Publisher: name: University of British Columbia
Year: 2010

description: This thesis is a survey of the development and dissemination of kumi-daiko ensembles in Canada, with the focus on their membership, gender, drums and repertoire, and links to the Japanese Canadian community. A case study of the group Katari Taiko's formative stage is presented to highlight key issues that confronted kumi-daiko ensembles in the past. With the emergence of exclusive groups in the form of pan-Asian, all-women kumi-daiko organizations, an inspection of Katari Taiko's prominent female representation highlights gender and feminist issues and the reconfiguring of gender constructs and portrayals. I will argue that these exclusive female spaces offer a refuge for queer members as well as an avenue to express their sexual identity through creative and artistic means. This discussion is complemented by an organological overview of drum construction, general taiko drum taxonomy, and an update on contemporary taiko drum manufacturing which includes a socio-historical portrait of the Burakumin (Japan's exclusive traditional drum makers) and North American taiko drummers who are forced out of necessity to become ingenious drum makers. This thesis concludes with the referencing of traditional Japanese music in the kumi-daiko repertoire as discussed by prominent drummers and ensembles followed by an analysis of Seiichi Tanaka's piece "Matsuri" in the context of its different renditions by Canadian kumi-daiko ensembles.
Determinantes do Uso de Medidas Sanitárias de Controle da Brucelose e Tuberculose Bovinas
Creators: name: Valente, Luiza Carneiro Mareti
name: Vale, Sônia Maria Leite Ribeiro Do
name: Braga, Marcelo Jose
name: Valente, Luiza Carneiro Mareti
name: Vale, Sônia Maria Leite Ribeiro Do
name: Braga, Marcelo Jose
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: animal health
subject: economic determinants
subject: vaccination
subject: panel Tobit

description: The bovine livestock is one of the most important sectors in the Brazilian agribusiness. However, Brazilian herds’ health – very important for the activity – is still an issue rarely studied in economic terms. Therefore, the present study tried to identify the major determinants of the use of preventive measures established in the National Program for Control and Eradication of Animal Brucellosis and Tuberculosis (PNCEBT). For this, a Panel Tobit model was used. Results show that the effective beginning of PNCEBT in 2004, has significantly stimulated the increase of measures’ use. It was also observed that vaccination is not influenced by the prices paid both for meat and milk, but those affected positively the number of tuberculosis tests. Variables related to federal government transfer, by agreement, to states and meat or milk exports were not significant. It was concluded that the PNCEBT has been showing good results. Moreover, economic incentives can be planned for producers, aiming to stimulate the increase in preventive practices.
Additional file 2 of DNA methylation changes during preimplantation development reveal inter-species differences and reprogramming events at imprinted genes
Creators: name: Ivanova, Elena
name: Canovas, Sebastian
name: Garcia-Martínez, Soledad
name: Romar, Raquel
name: Lopes, Jordana S.
name: Rizos, Dimitrios
name: Sanchez-Calabuig, Maria J.
name: Krueger, Felix
name: Andrews, Simon
name: Perez-Sanz, Fernando
name: Kelsey, Gavin
name: Coy, Pilar
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Supplementary Figure 1. Principal Component Analysis (PCA) of replicate PBAT datasets from porcine and bovine gametes and preimplantation embryos, and merged scBS-seq datasets from bovine oocytes. Supplementary Figure 2. CpG coverage rates of merged PBAT or scBS-seq datasets from porcine and bovine gametes and preimplantation embryos. Supplementary Figure 3. The CpG methylation profiles from gametes to blastocyst in pig and cow; additional screenshots to accompany Figure 2a and b. Supplementary Figure 4. Characteristics of regions gaining DNA methylation between the 2-4 and 8-16 cells stages: enrichment analysis for various genomic features; screenshots of representative regions. Supplementary Figure 5. Detection of DNMT1 transcripts originating from oocyte-specific or somatic promoters: screenshots of RNA-seq alignments and intron-spanning alignments. Supplementary Figure 6. Properties of genomic elements differentially methylated in oocytes and sperm in pig and cow. Supplementary Figure 7. Correlations between expression and promoter methylation for pluripotency and zygotic genome activation genes in gametes and preimplantation porcine embryos. Supplementary Figure 8. Correlations between expression and promoter methylation for pluripotency and zygotic genome activation genes in gametes and preimplantation bovine embryos.
The onset of void coalescence during dynamic fracture of ductile metals
Creators: name: Seppälä, E. T.
name: Belak, J.
name: Rudd, R. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Molecular dynamics simulations in three-dimensional copper have been performed to quantify the void coalescence process leading to fracture. The correlated growth of the voids during their linking is investigated both in terms of the onset of coalescence and the ensuing dynamical interactions through the rate of reduction of the distance between the voids and the directional growth of the voids. The critical inter-void ligament distance marking the onset of coalescence is shown to be approximately one void radius in both measures.
description: Accepted for publication in Phys. Rev. Lett
Estimates of the gluon concentrations in the confining SU(3)-Yang-Mills field for the first three states of charmonium
Creators: name: Goncharov, Yu. P.
name: Bytsenko, A. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The estimates of the gluon concentrations in the classical SU(3)-Yang-Mills field modelling confinement are given for the first three states of charmonium whose spectrum is tuned by calculating electromagnetic transitions among the mentioned levels in dipole approximation. For comparison the corresponding estimates for the photon concentration in the ground state of positronium (parapositronium and orthopositronium) are also adduced.
description: 15 pages, LaTeX
Spatiotemporal discrete multicolor solitons
Creators: name: Xu, Zhiyong
name: Kartashov, Yaroslav V.
name: Crasovan, Lucian-Cornel
name: Mihalache, Dumitru
name: Torner, Lluis
Publisher: name: arXiv
Year: 2004
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We have found various families of two-dimensional spatiotemporal solitons in quadratically nonlinear waveguide arrays. The families of unstaggered odd, even and twisted stationary solutions are thoroughly characterized and their stability against perturbations is investigated. We show that the twisted and even solutions display instability, while most of the odd solitons show remarkable stability upon evolution.
description: 18 pages,7 figures. To appear in Physical Review E
Additional file 1 of Fetal sex and maternal pregnancy outcomes: a systematic review and meta-analysis
Creators: name: Broere-Brown, Zoe A.
name: Adank, Maria C.
name: Benschop, Laura
name: Tielemans, Myrte
name: Muka, Taulant
name: Gonçalves, Romy
name: Bramer, Wichor M.
name: Josje D Schoufour
name: Voortman, Trudy
name: Steegers, Eric A. P.
name: Franco, Oscar H.
name: Schalekamp-Timmermans, Sarah
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Search Strategy.
As Atitudes dos Agricultores Face à Política Agrícola Comum e ao Projecto de Regadio de Alqueva
Creators: name: Santos, Maria José Palma Lampreia Dos
name: Henriques, Pedro Damião De Sousa
name: Fragoso, Rui Manuel De Sousa
name: Carvalho, Maria Leonor Da Silva
name: Santos, Maria José Palma Lampreia Dos
name: Henriques, Pedro Damião De Sousa
name: Fragoso, Rui Manuel De Sousa
name: Carvalho, Maria Leonor Da Silva
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Portuguese agriculture
subject: CAP
subject: attitudes
subject: farm’s typologies
subject: Single Payment Scheme

description: The main purpose of this paper is to know farmer’s attitudes face to the agricultural production, the political support and the irrigation project of Alqueva in the context of the 2003 Common Agricultural Policy (CAP) reform and the Health-Check, in a micro-region located near the Mediterranean Sea, in the Southern region of Portugal. At the same time, this paper also aims to understand the behavioural intentions of farmers face to the technological innovation and the future of the irrigation project in this political context. Results show that the majority of farmers are a relatively homogeneous cluster about their attitudes and behavioural intentions. These farmers still maintain a productivist mindset, a strong wish to maintain an agricultural focus and they strongly reject the notions of policy liberalisation. Although they have a great potential of innovation and being aware of the importance of their contribution in the protection of the rural environment, they recognize that the future CAP, the water supply irrigation price and the conditions of access to agricultural credit, could compromise their innovation capacity in the future. The conclusions suggest that it is necessary to understand the particularities of a regional agriculture in different countries in the European Union so the policies can take place successfully. In the Portuguese case, more comprehensive studies are necessary in order to find more consistent results.
A pure general relativistic non-singular bouncing origin for the Universe
Creators: name: Barrau, Aurélien
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this letter, we argue that the past of the Universe, extrapolated from standard physics and measured cosmological parameters, might be a non-singular bounce. We also show that, in this framework, quite stringent constraints can be put on the reheating temperature and number of inflationary e-folds, basically fixing $T_{RH}\sim T_{GUT}$ and $N\sim 70$. We draw some conclusions about the shape of the inflaton potential and raise the "naturalness" issue in this context. Finally, we argue that this could open a very specific window on the "pre big bounce" universe.
Remarks on astrophysical origin of the knee in cosmic ray spectrum
Creators: name: Stenkin, Yuri V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: All astrophysical explanations of the knee in cosmic ray spectrum accept the hypothesis of its existence {\it a priori} without any doubt. But, there exist experimental evidences against this hypothesis. Experimental data on the knee in various secondary cosmic ray components obtained by KASCADE array as well as by many other arrays reveal the existence of the knee ($Δγ\approx0.4\div0.5$) in electromagnetic component (e and $γ$ including Cherenkov light) and the absence of it or a very small knee ($Δγ\approx0.1\div0.2$) in muonic and hadronic components. But, one could expect the inverse relationship in case of the astrophysical knee origin. A brief review of experimental data concerning this problem is given.
description: 4 pages, 1 table. Submitted to Nucl. Phys. B (Proc. Suppl.)
An investigation into the effects of ducted tips on a marine propeller tested in an aerodynamic facility
Creators: name: Li, Hsing Hui Isabella
Publisher: name: University of British Columbia
Year: 2010

description: Earlier ducted tip marine propeller designs had shown reduced tip vortex intensities, which delayed cavitation inception; however, there existed discrepancy between the tip's effects on the efficiency of the propeller. The objective of this project was to confirm the findings in a more controlled environment and gain a direction for optimizing the tip geometry. A dynamometer designed to test full size marine propellers developed in 2004 for the UBC Boundary Layer Wind Tunnel was updated and used for the experiments conducted. Although cavitation cannot be observed in a wind tunnel, changes in the propeller performance will be evident with the use of the dynamometer. The dynamometer is capable of measuring torque and thrust loads up to 20Nm ±0.1% full scale and 196N ±0.03% applied load, respectively. Static and dynamic calibrations indicated that the linearity of the sensors is of a R² value of 1.000 or higher, except for that of the dynamic torque, which had a R value of 0.998. The calibration constants were accurate to the error of the setup: ±1.5%. Two 24"x24" Dyna-Quad propellers were selected for the experiment. One of the propellers was used as a reference propeller; the other was fitted with 0.75" and 1" ducted tips. The propellers were tested at 1000, 1500, 2000, and 2500 rpm. Measurements were sampled at 100 Hz for 15 seconds at advance ratio increments of 0.05. The efficiencies measured decreased with increasing duct size. The peak efficiencies determined for the reference, 0.75" ducted tip, 1" ducted tip, and faired 1" ducted tip propellers were 61.8%, 58.7%, 56.7%, and 58.5%, respectively. Installation of the ducted tips removed lifting area and added wetted area but did not improve the overall propeller performance. Fairing of the 1" ducted tip improved the aerodynamics of the tip, but the performance remains lower than that of the reference. Although the current ducted tips did not show favourable results in the wind tunnel, with the appropriate fairing of the ducts, the design may still be effective in delaying cavitation without the expense of efficiency.
title: Headteacher Perspectives On The Reasons Pupils Are Permanently Excluded From Special Schools For Pupils With Severe Learning Difficulties
Creators: name: Norgate, Roger
Publisher: name: The Open University
Year: 2002

description: There is little existing research on permanent exclusions from special schools. This study focuses on Headteacher perspectives. It reports interviews with five Headteachers with recent experience of exclusion and a survey, sent to all maintained non-residential SLD schools in England. The survey received a 72% response. Approximately twenty-five pupils are permanently excluded from SLD schools in England each year. Whilst the trend in special school exclusions has mirrored those of mainstream schools, little variation was evident in the number of SLD exclusions between 1994/5 - 1998/9. The following factors were identified: The need to protect staff and pupils from physical harm is a key imperative. All excluded pupils had exhibited violent behaviours prior to their exclusion. The allocation of staff presented the main method of risk management and LEAs were perceived to readily provide support under these circumstances. Whilst staff numbers are important, maintaining staff confidence can be equally critical. Exclusion was linked to perceptions about whether the school had the capacity to bring about an improvement in behaviour. This involved judgements about whether the placement might be detrimental to the pupil’s best interests and whether his/her needs would better be met elsewhere. The integrity of the intervention was linked to the degree with which consistency could be achieved. Whilst pupils exhibiting challenging behaviour attract support from many services this was perceived to be poorly coordinated. The most important form of consistency is that between home and school. Some parents were felt to undermine the intervention, others were perceived to be so ‘worn-down” by supporting the child, that they lacked the capacity to be more constructively involved. Most Headteachers were critical of the level of support available for parents. Children exhibiting more extreme challenges tended to be excluded from respite care. Where pupils required residential care this was rarely available locally. Headteachers were concerned about the impact of challenging pupils on the school’s ability to provide for the needs of other pupils. The juxtaposition of physically vulnerable pupils with challenging pupils generated particular tensions. The increasing diversity of need being catered for within SLD schools was also associated with difficulties in managing behavioural challenges. Placement change would normally be mediated through re-assessment. Permanent exclusion however might still occur if a significant increase in the level of challenge overtook these procedures. Problems could also arise where parents were opposed to a residential school placement, yet no local options were available.
Two-dimensional ferromagnetic semiconductor VBr3 with tunable anisotropy
Creators: name: Liu, Lu
name: Yang, Ke
name: Wang, Guangyu
name: Wu, Hua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Two-dimensional (2D) ferromagnets (FMs) have attracted widespread attention due to their prospects in spintronic applications. Here we explore the electronic structure and magnetic properties of the bulk and monolayer of VBr$_{3}$ in the honeycomb lattice, using first-principles calculations, crystal field level analyses, and Monte Carlo simulations. Our results show that VBr$_{3}$ bulk has the $e'_{g}$$^2$ ($S$=1) ground state and possesses a small orbital moment and weak in-plane magnetic anisotropy. Those results well explain the recent experiments. More interestingly, we find that a tensile strain on the semiconducting VBr$_{3}$ monolayer tunes the ground state into $a_{1g}$$^1$$e'_{g}$$^1$ and thus produces a large orbital moment and a strong out-of-plane anisotropy. Then, the significantly enhanced FM superexchange and single ion anisotropy (SIA) would raise $T_{\rm C}$ from 20 K for the bare VBr$_{3}$ monolayer to 100-115 K under a 2.5$\%$-5$\%$ strain. Therefore, VBr$_{3}$ would be a promising 2D FM semiconductor with a tunable anisotropy.
description: 8 pages, 8 figures, 2 tables
Prioritization of sustainable development plannings for supply chain finance using a novel Triangular neutrosophic-based TOPSIS-CPT-VIKOR model
Creators: name: Wang, Peiwen
name: Huang, Chun-Yong
name: Fan, Zhi-Ping
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Neuroscience
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy

description: The development of sustainable supply chain finance (SSCF) promotes the improvement of the long-term production and operational performance of enterprises. It is significant to explore both environmentally friendly and cost-effective solutions, especially in the presence of uncertain information. The triangular neutrosophic number (TrNN) can enable decision-makers (DMs) to express their preferences in high uncertainty. This paper aims to provide a systematic multiple-attribute group decision-making (MAGDM) framework to support DMs in prioritizing sustainable development plannings by combining the best-worst method (BWM), optimization model of maximizing deviation method, and uniformity entropy theory. Moreover, a TrNN-based extended TOPSIS method is developed to measure the differences in DMs’ importance. We incorporate the cumulative prospect theory (CPT) method to account for DMs’ psychological behaviors in risk scenarios. The CPT-VIKOR methodology is employed to rank alternatives, enhancing the precision of decision-making. Finally, the proposed approach is successfully applied to the LNG industry to illustrate its applicability.
Additional file 1 of DNA methylation changes during preimplantation development reveal inter-species differences and reprogramming events at imprinted genes
Creators: name: Ivanova, Elena
name: Canovas, Sebastian
name: Garcia-Martínez, Soledad
name: Romar, Raquel
name: Lopes, Jordana S.
name: Rizos, Dimitrios
name: Sanchez-Calabuig, Maria J.
name: Krueger, Felix
name: Andrews, Simon
name: Perez-Sanz, Fernando
name: Kelsey, Gavin
name: Coy, Pilar
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Supplementary Table 1. Sequencing outputs for (a) PBAT or scBS-seq libraries from bovine samples; and (b) PBAT libraries from porcine samples. Supplementary Table 2. Sequencing output for RNA-seq libraries from porcine and bovine samples. Supplementary Table 3. 100-CpG tiles losing or gaining methylation between the 2-4 and 8-6 cell stages, filtering for tiles changing by >10%. Supplementary Table 4. Location of candidate gDMRs with respect to bovine imprinted genes identified by RNA-seq [9]. Supplementary Table 5. Promoter methylation and CpG coverage of DNMT, TET and related genes in pig and cow PBAT/scBS-seq datasets. Supplementary Table 6. Lists of pig and cow pluripotency and zygotic genome activation genes.
title: Influence of the spinal curvature on the efficacy of transcutaneous stimulation of the human lumbar spinal cord
Creators: name: Binder, Veronika
Publisher: name: TU Wien
Year: 2016
Subjects: subject: Hoffmann reflex
subject: spinal cord stimulation
subject: action potential
subject: electrical stimulation

description: Elicitation of spinal reflexes and effective neuromodulation by transcutaneous spinal cord stimulation (tSCS) relies on selective activation of sensory fibers within the spinal roots. Activation thresholds of sensory and motor nerves at spinal cord level depend on the geometry and electric properties of the surrounding tissue. The well conducting intervertebral discs allow current to enter the spinal canal where the roots are located and the flexion and extension of the spine alters their shape and position. Hence we hypothesize that the spinal curvature influences the activation thresholds of sensory and motor fibers within the roots. We evoked bilateral responses to tSCS administered between T11 and T12 vertebrae in quadriceps, hamstrings, tibialis anterior and soleus in ten neurologically intact subjects, and compared both maximal dorsi- and ventralflexion to a neutral spine in four different body positions, supine, lateral, sitting and standing. Single and paired (35 ms inter-stimulation interval) biphasic pulses were used to study response amplitudes and differentiate between preferential sensory posterior or motoric anterior root fiber stimulation. To control for posturally induced reflex pathway gain alterations, we simultaneously evoked soleus H reflexes in each subject and kept the H reflex amplitudes constant between spinal curvatures, to ensure spinal reflex amplitudes reflected tSCS effectiveness rather than reflex pathway gain. Ventralflexion significantly decreased tSCS efficacy, lowering muscle response amplitudes to single stimuli across all positions and increasingly favoring direct motoneuron activation during sitting and standing. Dorsiflexion, on the other hand, showed no change in responses. Our results suggest an unfavorable transversal current density distribution within and around the spinal canal as a result of ventralflexion of the spine. We therefore recommend tSCS stimulation with a straight or dorsiflexed spine to reliably and effectively evoke spinal reflexes.
Radiative parton energy loss and jet quenching in high-energy heavy-ion collisions
Creators: name: Zakharov, B. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study within the light-cone path integral approach [3] the effect of the induced gluon radiation on high-p_{T} hadrons in high-energy heavy-ion collisions. The induced gluon spectrum is represented in a new form which is convenient for numerical simulations. For the first time, computations are performed with a realistic parametrization of the dipole cross section. The results are in reasonable agreement with suppression of high-p_{T} hadrons in Au+Au collisions at \sqrt{s}=200 GeV observed at RHIC.
description: 12 pages, 3 epsi figures. Typos corrected