cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Heterogeneous Preferences for Urban Forest Attributes: A Latent Class Approach
Creators: name: Alvarez, Sergio
name: Soto, Jose
name: Escobedo, Francisco
name: Lai, John
name: Adams, Damian
name: Alvarez, Sergio
name: Soto, Jose
name: Escobedo, Francisco
name: Lai, John
name: Adams, Damian
Publisher: name: Unknown
Year: 2018
Subjects: subject: Environmental Economics and Policy
subject: Latent class; urban forests; discrete choice; heterogeneous preferences

description: The increasing pace of urbanization worldwide makes urban forests key providers of a wide range of ecosystem services that contribute to human well-being in multiple ways. The United Nations estimates that 54 percent of the world’s population already lives in urban areas, and by 2050 two-thirds of the globe’s people will be living in cities. Forests in the urban and peri-urban landscape provide many services that directly and indirectly benefit human beings, such as carbon sequestration, air quality improvements through particulate deposition, wildlife habitat, and aesthetic benefits that improve land and home values as well as human health outcomes, among many others. The importance and contribution of urban forests to human well-being will only increase as societies worldwide become more urbanized. In this study, we use data from a discrete choice experiment implemented through an online survey of 724 Florida residents, to estimate a series of latent class models of preferences for urban forest attributes. Our results reveal multiple preference groups, each with different willingness-to-pay values for the four forest attributes evaluated: type of trees (native vs. exotic), number of trees (many vs. few), size of trees (fully grown vs. mix of ages), and maintenance costs. Thus, our study estimates the public’s willingness-to-pay for different attributes of urban forests and provides further evidence of the ubiquity of heterogenous preferences for non-market goods and services.
Electroproduction of nucleon resonances
Creators: name: Tiator, L.
name: Drechsel, D.
name: Kamalov, S.
name: Giannini, M. M.
name: Santopinto, E.
name: Vassallo, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The unitary isobar model MAID has been extended and used for a partial wave analysis of pion photo- and electroproduction in the resonance region W < 2 GeV. Older data from the world data base and more recent experimental results from Mainz, Bates, Bonn and JLab for Q^2 up to 4.0 (GeV/c)^2 have been analyzed and the Q^2 dependence of the helicity amplitudes have been extracted for a series of four star resonances. We compare single-Q^2 analyses with a superglobal fit in a new parametrization of Maid2003 together with predictions of the hypercentral constituent quark model. As a result we find that the helicity amplitudes and transition form factors of constituent quark models should be compared with the analysis of bare resonances, where the pion cloud contributions have been subtracted.
description: 6 pages Latex including 5 figures, Invited talk at ICTP 4th International Conference on Perspectives in Hadronic Physics, Trieste, Italy, 12-16 May 2003
Stochastic Analysis of County and Multi County Yields for Agriculture Risk Coverage (ARC) payments for Arkansas Row Crop Producers
Creators: name: Mane, Ranjitsinh
name: Watkins, Bradley
name: Mane, Ranjitsinh
name: Watkins, Bradley
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Arkansas
subject: corn
subject: county
subject: risk
subject: simulation
subject: soybean

description: The Agricultural Risk Coverage (ARC-CO) program authorized by the 2014 Farm Bill provides revenue loss coverage at the county level. The ARC-CO payments are based on actual county crop revenue for a particular commodity. The county revenue is a function of county yield and national price. Since the inception of the ARC-CO program, there has been a wide disparity in crop revenue payment between two or more counties with a similar production environment. The variation in county yield has resulted in quite wide disparity of payments for Arkansas producers based on the location of their farm. This study compared ARC-CO program for corn and soybean and their respective average county yields and average multi county yields for selected eastern Arkansas counties. The study used simulation to evaluate stochastic ARC-CO payments generated by multicounty yield for 2014, 2015, and 2016 for four major corn and soybeans producing regions of Grand Prairie, White River, Upper Delta and Lower Delta regions in Arkansas. Multivariate empirical distributions of multi county yields, and prices were simulated. The likelihood of receiving ARC-CO payment under multicounty yield was more than 60, 27, and 29 percent for Corn, Irrigated Soybean and Non Irrigated Soybean based on our simulated results. The multicounty yield had an ARC-CO payment for all regions. However, individual county payment were less for corn in Grand Prairie and other regions. ARC-CO payment for irrigated soybeans and non-irrigated soybean fluctuated from year to year with highest payment at individual county level for 2014.
title: Fusogenic membrane glycoproteins as a gene therapy for cancer
Creators: name: Bateman, Andrew R
Publisher: name: The Open University
Year: 2003

description: Gene therapy strategies hold great promise for the treatment of cancer. This work tests the hypothesis that viral fusogenic membrane glycoproteins (FMG) have potential as cytotoxic gene therapy agents. The truncated, hyperfusogenic form of a C-type retrovirus envelope gene: the Gibbon ape leukaemia virus envelope (GALV), and the F and H genes of the paramyxovirus Measles, were the predominate FMG investigated. Initial studies demonstrated the cytotoxicicty of expressing FMG in tumour cells in vitro. Extensive cell death occured following cell-cell fusion and syncitia formation. Comparison with suicide genes indicated superior cell killing with FMG due to a greater bystander effect. FMG killing induced a stress response with induction and upregulation of heat shock proteins. Detailed analysis of cell death following FMG expression and syncitia formation suggested a non-apoptotic, necrotic mechanism. This was independent of the cell cycle. Viral vectors expressing FMG were developed. There was inefficient production of retroviral vectors based on the Moloney murine leukaemia virus expressing GALV. Improved titre was seen from a lentiviral vector expressing GALV. This vector, when injected intratumourally, was able to eradicate small tumours in nude mice. Adenoviral vectors expressing F and H were produced. Intratumoural injection of these vectors resulted in syncitia formation in vivo. Direct intratumoural injection of an H expressing adenoviral vector into human xenograft tumours expressing Measles F resulted in tumour eradication in 30% of mice. Production of an adenoviral vector expressing GALV required a strategy involving Cre recombinase and a transcriptional silencer to overcome the direct cytotoxicity to producer cells. Co-expression of granulocyte-macrophage colony-stimulating factor (GM-CSF) with FMG by a number of mechanisms was developed. Their particular in vitro properties were analysed in detail. In summary this thesis represents the initial studies of a group of genes with their novel application as gene therapy agents for the treatment of cancer. Incorporation of FMG in the development of cytotoxic and immunomodulatory gene therapy strategies hold significant promise and merit further development.
Properties and nature of Be stars XXIII. Long-term variations and physical properties of kappa Dra
Creators: name: Saad, S. M.
name: Kubat, J.
name: Koubsky, P.
name: Harmanec, P.
name: Skoda, P.
name: Korcakova, D.
name: Krticka, J.
name: Slechta, M.
name: Bozic, H.
name: Ak, H.
name: Hadrava, P.
name: Votruba, V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of new spectroscopic observations of the bright Be star kappa Dra obtained at the Ondrejov observatory during 1992 - 2003 and UBV photometric observations secured at several observatories. The fundamental stellar parameters have been obtained from a comparison with a grid of NLTE model atmospheres. The best fit was found for Teff=14000K, log g = 3.5, and v sin i = 170km/s. These values together with a Hipparcos parallax lead to a stellar mass M=4.8+-0.8 M_solar and radius R=6.4+-0.5 R_solar. Long-term variations of kappa Dra were analysed using measurements of equivalent widths, central intensities, peak intensities of emission lines and emission peak velocity differences for H-alpha, H-beta, H-gamma, H-delta, and some helium, silicon, and iron lines. It turned out that the previously reported period of 23 years in the variation of the emission strength is probably a cyclic, not a strictly periodic phenomenon. An attempt to find out a period from all available records of the H-beta emission strength led to a value of 8044+-167 days (22.0 years) but the phase plots show that each cycle has a different shape and length. For the moment, the nature and origin of the disk around kappa Dra still remains unknown. From the comparison of the electronic spectra obtained at different phases of the long-term cycle and synthetic spectra it appears that there are no detectable changes in the photospheric part of the Balmer lines related to variations in the Balmer emission strength which could be attributed to an extended photosphere corresponding to inner parts of the disk, optically thick in continuum.
description: Accepted for publication in Astronomy and Astrophysics; 26 pages
Non-retarded room temperature Hamaker constants between elemental metals
Creators: name: Tolias, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Lifshitz theory of van der Waals forces is utilized for the systematic calculation of the non-retarded room temperature Hamaker constants between 26 identical isotropic elemental metals that are embedded in vacuum or in pure water. The full spectral method, complemented with a Drude-like low frequency extrapolation, is employed for the elemental metals benefitting from the availability of extended-in-frequency reliable dielectric data. The simple spectral method is employed for pure water and three dielectric representations are explored. Numerical truncation and low frequency extrapolation effects are shown to be negligible. The accuracy of common Lifshitz approximations is quantified. The Hamaker constants for 100 metal combinations are reported; the geometric mixing rule is revealed to be highly accurate in vacuum and water.
description: 13 pages; 2 figures; 7 tables
Factors affecting Southeast Dairy Farmers’ adoption of Management Intensive Grazing
Creators: name: Ibrahim, Mohammed
name: Liu, Xuanli
name: Pattanaik, Nalini
name: Ibrahim, Mohammed
name: Liu, Xuanli
name: Pattanaik, Nalini
Publisher: name: Unknown
Year: 2018
Subjects: subject: Farm Management
subject: generalized logit, technology adoption, management intensive grazing

description: Dairy farming remains a very significant agricultural sector in the Southeast and it is very essential for dairy farmers to provide their cattle with quality feed that benefit cattle’s health and milk production. Cattle farmers practice different types of cattle feeding such as: confinement feeding, management intensive grazing (MIG), or traditional grazing; however, many researchers advocate for MIG practices for its many benefits. A dairy farmer survey was conducted in Georgia and Florida and a generalized logit model used to examine the factors that affect the adoption of MIG. The results showed that the farm herd size, numbers of years in key management, age, farmer’s education, and farmer’s off farm work affect the adoption of MIG.
Potential energy surfaces for cluster emitting nuclei
Creators: name: Poenaru, Dorin N.
name: Gherghescu, Radu A.
name: Greiner, Walter
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Potential energy surfaces are calculated by using the most advanced asymmetric two-center shell model allowing to obtain shell and pairing corrections which are added to the Yukawa-plus-exponential model deformation energy. Shell effects are of crucial importance for experimental observation of spontaneous disintegration by heavy ion emission. Results for 222Ra, 232U, 236Pu and 242Cm illustrate the main ideas and show for the first time for a cluster emitter a potential barrier obtained by using the macroscopic-microscopic method.
description: 10 pages, 21 figures, revtex4
THE POLITICAL ECONOMY OF THE SOUTH AFRICAN DAIRY INDUSTRY: A PUBLIC CHOICE ANALYSIS
Die politieke ekonomie van die Suid-Afrikaanse suiwelindustrie: 'n Publieke keuse analise
Creators: name: Wright, P. D.
name: Nieuwoudt, W. L.
name: Wright, P. D.
name: Nieuwoudt, W. L.
Publisher: name: Unknown
Year: 1993
Subjects: Livestock Production/Industries
Political Economy
Public Economics

description: The political economic structure of the South African Dairy Industry is analyzed using public choice theory. The Industry is comprised of various interest groups which are found to be interdependent. Some groups have the ability to inflict internal and external effects on other groups as a result of political power they possess. Manufacturers are the most politically effective group, having the ability to inflict external effects on other interest groups. They can spread the costs of the 'milk is milk' system among interest groups in the Industry. Their political power is mainly due to the dominant position they attained under protection of the Board before deregulation. Extensions of the public choice theory were found to be beneficial in explaining certain actions within the Industry. A gradual phasing out of regulation is recommended. Policymakers can still play an important role in providing traditional public goods and services such as information, restricting monopoly control and marketing promotions. Freedom of entry of new dairies is essential to protect the interests of consumers and producers.
Additional file 1 of Fine mapping of a Phytophthora-resistance locus RpsGZ in soybean using genotyping-by-sequencing
Creators: name: Bingzhi Jiang
name: Yanbo Cheng
name: Zhandong Cai
name: Li, Mu
name: Jiang, Ze
name: Ruirui Ma
name: Yeshan Yuan
name: Qiuju Xia
name: Nian, Hai
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Gene ontology (GO) enrichment analysis of the candidate genes. Table S2. The biological process and molecular function ontology of the candidate genes. Table S3. Primers of the candidate genes for real-time PCR.
Additional file 2 of Fine mapping of a Phytophthora-resistance locus RpsGZ in soybean using genotyping-by-sequencing
Creators: name: Bingzhi Jiang
name: Yanbo Cheng
name: Zhandong Cai
name: Li, Mu
name: Jiang, Ze
name: Ruirui Ma
name: Yeshan Yuan
name: Qiuju Xia
name: Nian, Hai
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S1. Twenty linkage groups of the soybean high-density genetic map. A high-density bin linkage map was constructed, covering 3032 cM, with an average distance of 0.81 cM between adjacent bins. The bin markers and their locations are shown on the right and left sides, respectively.
A Lattice Study of the Two-photon Decay Widths for Scalar and Pseudo-scalar Charmonium
Creators: name: Chen, Ying
name: Gong, Ming
name: Li, Ning
name: Liu, Chuan
name: Liu, Yu-Bin
name: Liu, Zhaofeng
name: Ma, Jian-Ping
name: Meng, Yu
name: Xiong, Chao
name: Zhang, Ke-Long
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In this exploratory study, two photon decay widths of pseudo-scalar ($η_c$) and scalar ($χ_{c0}$) charmonium are computed using two ensembles of $N_f=2$ twisted mass lattice QCD gauge configurations. The simulation is performed two lattice ensembles with lattice spacings $a=0.067$ fm with size $32^3\times{64}$ and $a=0.085$ fm with size $24^3\times{48}$, respectively. The results for the decay widths for the two charmonia are obtained which are in the right ballpark however smaller than the experimental ones. Possible reasons for these discrepancies are discussed.
description: version accepted by Chinese Physics C
DIE RELATIEWE MEDEDINGENDHEID VAN DIE SUID-AFRIKAANSE KORINGBEDRYF MET BETREKKING TOT DIE INTERNASIONALE KORINGMARK
The relative competitiveness of the South African wheat industry with regard to the international wheat market.
Creators: name: De Kock, J. H. W.
name: Laubscher, J.
name: De Kock, J. H. W.
name: Laubscher, J.
Publisher: name: Unknown
Year: 1993
Subjects: Crop Production/Industries
International Relations/Trade

description: The South African wheat industry's competitive position relative to the international wheat market and factors which may influence it in the long term are discussed in this article. In this respect the emphasis mainly falls on the trends in the cost of wheat imports and the factors which affect it, as well as on the potential implications of international trade liberalisation for the South African wheat industry's competitive position.
Additional file 1 of Dried blood spot versus venous blood sampling for phenylalanine and tyrosine
Creators: name: Kimber Van Vliet
name: Wiggert G. Van Ginkel
name: Dam, Esther Van
name: Blaauw, Pim De
name: Koehorst, Martijn
name: Kingma, Hermi A.
name: Francjan J. Van Spronsen
name: Heiner-Fokkema, M. Rebecca
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: Hematology

description: Additional file 1. Supplemental Material. Detailed information of the method used for the determination of Phenylalanine and Tyrosine in dried blood spots.
Continuum-Fitting the X-ray Spectra of Tidal Disruption Events
Creators: name: Wen, Sixiang
name: Jonker, Peter G.
name: Stone, Nicholas C.
name: Zabludoff, Ann I.
name: Psaltis, Dimitrios
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We develop a new model for X-ray emission from tidal disruption events (TDEs), applying stationary general relativistic ``slim disk'' accretion solutions to supermassive black holes (SMBHs) and then ray-tracing the photon trajectories from the image plane to the disk surface, including gravitational redshift, Doppler, and lensing effects self-consistently. We simultaneously and successfully fit the multi-epoch XMM-Newton X-ray spectra for two TDEs: ASASSN-14li and ASASSN-15oi. We test explanations for the observed, unexpectedly slow X-ray brightening of ASASSN-15oi, including delayed disk formation and variable obscuration by a reprocessing layer. We propose a new mechanism that better fits the data: a ``Slimming Disk'' scenario in which accretion onto an edge-on disk slows, reducing the disk height and exposing more X-rays from the inner disk to the sightline over time.For ASASSN-15oi, we constrain the SMBH mass to $4.0^{+2.5}_{-3.1} \times 10^6M_\odot$. For ASASSN-14li, the SMBH mass is $10^{+1}_{-7}\times 10^6M_\odot$ and the spin is $>0.3$. For both TDEs, our fitted masses are consistent with independent estimates; for ASASSN-14li, application of the external mass constraint narrows our spin constraint to $>0.85$. The mass accretion rate of ASASSN-14li decays slowly, as $\propto t^{-1.1}$, perhaps due to inefficient debris circularization. Over $\approx$1100 days, its SMBH has accreted $ΔM \approx 0.17 M_\odot$, implying a progenitor star mass of $> 0.34 M_\odot$, i.e., no ``missing energy problem.'' For both TDEs, the hydrogen column density declines to the host galaxy plus Milky Way value after a few hundred days, suggesting a characteristic timescale for the depletion or removal of obscuring gas.
description: Accepted for publication in ApJ
Stabilization of dayside surface liquid water via tropopause cold trapping on arid slowly rotating tidally locked planets
Creators: name: Ding, Feng
name: Wordsworth, Robin D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Terrestrial-type exoplanets orbiting nearby red dwarf stars (M-dwarfs) are among the best targets for atmospheric characterization and biosignature searches in the near future. Recent evolutionary studies have suggested that terrestrial planets in the habitable zone of M-dwarfs are probably tidally locked and have limited surface water inventories as a result of their host stars' high early luminosities. Several previous climate simulations of such planets have indicated that their remaining water would be transported to the planet's permanent nightside and become trapped as surface ice, leaving the dayside devoid of water. Here we use a three-dimensional general circulation model with a water cycle and accurate radiative transfer scheme to investigate the surface water evolution on slowly rotating tidally locked terrestrial planets with limited surface water inventories. We show that there is a competition for water trapping between the nightside surface and the substellar tropopause in this type of climate system. Although under some conditions the surface water remains trapped on the nightside as an ice sheet, in other cases liquid water stabilizes in a circular area in the substellar region as a wetland. Planets with 1 bar N$_2$ and atmospheric CO$_2$ levels greater than 0.1 bar retain stable dayside liquid water, even with very small surface water inventories. Our results reveal the diversity of possible climate states on terrestrial-type exoplanets and highlight the importance of surface liquid water detection techniques for future characterization efforts.
description: accepted for publication in ApJL
RESEARCH NOTE: THE DEMAND FOR AND MARGINAL PRODUCTIVITY OF FINANCE CAPITAL IN THE SOUTH AFRICAN AGRICULTURE.
Creators: name: Lubbe, W. F.
name: Du Plessis, W. H.
name: Lubbe, W. F.
name: Du Plessis, W. H.
Publisher: name: Unknown
Year: 1993
Subjects: Demand and Price Analysis
Financial Economics

description: The efficient and productive use of capital as an input into the South African agriculture are investigated in this research. Shifts in demands for long term, cooperative and bank credit were larger and probably more frequent than the respective supplies, resulting in dominant and relative price elastic supply functions. Cooperative credit is a substitute for long term credit, while bank credit is complements to other credit types. The marginal productivities of equity and medium term credit show operation in irrational production phases. Equity had an increasing marginal productivity indicating insufficient usage, while the negative marginal productivity of medium term credit indicates over meganization.
Life cycle assessment of bioethanol derived from corn and corn stover
Creators: name: Ip, Dora
name: Diba, Farbod Ahmadi
name: Pope, Derek
Publisher: name: The University of British Columbia
Year: 2012

description: This paper follows the growing research of bioethanol fuels produced from farmed corn as well as corn stover in comparision to petroleum fuels. A Life Cycle Analysis (LCA) using the GaBi database was done to effectively compare results in terms of their respective emissions to the air, water, and industrial soil. Various basis’ that were also involved in the comparison include 1) Mass [kg], 2) TRACI – Global Warming Air [kg CO2-Equiv.], 3) TRACI, Acidification Rain [kg mol H + Equiv.], and 4) TRACI, Smog Air [kg NOx-Equiv.]. Production and processes of corn and petroleum from crude oils are also observed and are replicated in the GaBi simulation. To normalize the three fuels, a functional unit of distance (km), and a conventional car (2001 Ford Taurus) was selected to describe the combustion of each fuel source based on a travel distance of 100km on average road conditions. The first section will illustrate the LCA conducted on gasoline and the results of the analysis. Following will show the LCA conducted for E85 produced from corn and corn stover, with overall results comparing each fuel source in the end. Based on LCA results, E85 was shown to have a 39% reduction in GHG emissions when compared to gasoline. The type of feedstock for ethanol production (corn versus corn stover) had little effect on the life cycle emissions of E85, however, the resource inputs varied dramatically. To travel 100km, 12.9kg of corn (food) and 190.4kg of water. In comparison, no food is required when corn stover is used as the feedstock, however, 274.5kg of water is consumed. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
MANAGERIAL PRACTICE AND FINANCIAL SUCCESS IN EXTENSIVE CATTLE RANCHING
Creators: name: Jocum, Isaac
name: Groenewald, Jan A.
name: Jocum, Isaac
name: Groenewald, Jan A.
Publisher: name: Unknown
Year: 1993
Subjects: Farm Management
Land Economics/Use
Livestock Production/Industries

description: Grazing management, breeding practice, marketing behaviour and financial management all form part of the extensive cattle rancher's system. Many ranching areas are characterised by large climatological variation, which in its turn leads to vanable availabilites of edible plants. Beef prices are subject to cyclical and seasonal variation. Market access is limited by the permit/quota system. Market planning and adaptability that will enable farmers to adjust stock numbers to both marketing strategy and ecological conditions is a key to financial success. Farmers should limit capital expenditure; this includes limitations in number of camps and number of herds. Larger camps, fewer herds and multisire mating appear to be associated with financial success.
Agrilus furcatipennis Gory & Laporte 1837
Creators: name: Curletti, Gianfranco
name: Migliore, Letizia
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Buprestidae
Agrilus
Agrilus furcatipennis

description: Agrilus furcatipennis Gory & Laporte, 1837
 Agrilus furcatipennis Gory & Laporte, 1837: 9.
 Material examinado: BRASIL, Ceará, Corquejo, 1 ex., III.19… (ilegível), Dirings leg.
description: Published as part of Curletti, Gianfranco & Migliore, Letizia, 2014, O gênero Agrilus Curtis, 1829 nas coleções do Museu de Zoologia da Universidade de São Paulo (Coleoptera: Buprestidae), pp. 81-106 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 54 (8) on page 89, DOI: 10.1590/0031-1049.2014.54.08, http://zenodo.org/record/4656297
On symmetry and recovery of steady continuous stratified periodic water waves
Creators: name: Xu, Fei
name: Zhang, Yong
name: Li, Fengquan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q35, 35J25, 35J60

description: This paper considers two-dimensional steady continuous stratified periodic water waves. Firstly, we prove that each streamline must be symmetric about the crest line when it is strictly monotonous between troughs and crests by exploiting the maximum principle and analysis of surface profile. Then, standard Schauder estimates are exploited on the uniform oblique derivative problems to show that all streamlines are real analytic (including the free surface). Based on above symmetry and regularity of streamlines, finally we provide an analytic expansion method to recover the water waves from horizontal velocity on the axis of symmetry and wave height. Most notably, all of results here are suitable not only for small amplitude but also for large amplitude.
The Multicolor Panoramic Photometer-Polarimeter with high time resolution based on the PSD
Creators: name: Plokhotnichenko, V.
name: Beskin, G.
name: Debur, V.
name: Panferov, A.
name: Panferova, I.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Multicolor Panoramic Photometer-Polarimeter (MPPP) with a time resolution of 1 microsecond has been built based on a PSD and used at the 6-meter telescope in SAO (Russia). The device allows registration of the photon fluxes in four photometric bands simultaneously and finding values of 3 Stokes parameters. MPPP consists of Position-Sensitive Detector (PSD), acquisition MANIA-system, polarization unit and a set of dichroic filters. MPPP gives a possibility of detecting photons in 2 pupils with a size of 10 - 15 arc sec centered on the object and comparison star positions simultaneously. The first half of the object photon flux passes through the phase rotating plate and polarizer, and the second one through the polarizer alone. MPPP registers in each of the 4 filters four images of the object with different orientations of polarization plane and one image of a comparison star. It allows measuring instantaneous Stokes parameters. The main astrophysical problems to be solved with MPPP are as follows: investigation of optical pulsars; study of GRB phenomenon in the optical range; searching for single black holes; study of fast variability of X-ray binaries. As an illustration of MPPP use, the results of observations at the 6-meter telescope of Crab pulsar and soft gamma repeater are presented.
description: 3 pages, 7 figures, to be published in Nuclear Instruments & Methods in Physics Research
PRICE DISTORTIONS IN THE SOUTH AFRICAN MAIZE ECONOMY: A COMPARATIVE POLITICAL ANALYSIS
Creators: name: Wright, P. D.
name: Nieuwoudt, W. L.
name: Wright, P. D.
name: Nieuwoudt, W. L.
Publisher: name: Unknown
Year: 1993
Subjects: Crop Production/Industries
Demand and Price Analysis
Political Economy

description: The effects of government intervention in the South African Maize Industry are evaluated using a partial equilibrium framework. Large monetary transfers have resulted from government policy with a bias towards more powerful producer interest groups. Transfers significantly exceed the welfare gains to producers. However, the per capita gain for producers is greater than the per capita loss for consumers creating an incentive for producers to continue lobbying for the current South African maize policy. Intervention results from market failure followed by political failure where interest groups manipulate government for their own benefit. As long as vested interests remain, policy reform seems remote. A new political dispensation may shift vested interests towards consumers away from producers. Policy reform is discussed along with conditions to facilitate this process of reform.
Generalization of the hierarchical equations of motion theory for efficient calculations with arbitrary correlation functions
Creators: name: Ikeda, Tatsushi
name: Scholes, Gregory D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The hierarchical equations of motion (HEOM) theory is one of the standard methods to rigorously describe open quantum dynamics coupled to harmonic environments. Such a model is used to capture non-Markovian and non-perturbative effects of environments appearing in ultra-fast phenomena. In the regular framework of the HEOM theory, the environment correlation functions are restricted into linear combinations of exponential functions. In this article, we present a new formulation of the HEOM theory including treatments of non-exponential correlation functions, which enables us to describe general environmental effects more efficiently and stably than the original theory and other generalizations. The library and its Python binding we developed to perform simulations based on our approach, named LibHEOM and PyHEOM respectively, are provided as supplementary material.
description: 18 pages, 6 figures
DIE METING VAN BESPROEIINGSBOERE SE ABSOLUTE RISIKOVERMYDINGSKOEFFISIENTE MET BEHULP VAN DIE INTERVALMETODE: DIE IMPLIKASIES VAN SKAALAANPASSINGS
Measuring irrigation farmers' absolute risk-aversion coefficients by means of the interval approach: The implications of scale adjustments
Creators: name: Meiring, J. A.
name: Oosthuizen, L. K.
name: Meiring, J. A.
name: Oosthuizen, L. K.
Publisher: name: Unknown
Year: 1993
Subjects: Farm Management
Research and Development/Tech Change/Emerging Technologies
Risk and Uncertainty

description: The aim of this research is to analyse the influence of adjustment of the absolute risk-aversion scale, as well as the width of cumulative distributions on respondents' risk-preferences. The consistency of risk-attitudes has also been determined. The majority of farmers in the region revealed extreme risk-preferences - either risk-seeking or risk-aversion. Furthermore, the decisionmakers who completed the questionnaire at the higher levels of bank balances were significantly more consistent than those who completed the questionnaire at the lower levels. If the width over which the distributions extend, increases, the preferences of a few farmers tends to change from risk-neutral to risk-averse. By propagating the concept of probability distributions for the evaluation of risky alternatives, a beter understanding of risk and risk management can be brought about, which will result in easier obtaining of riskmeasuring results.
AN ANALYSES OF THE US IMPORT MARKET FOR WINE WITH SPECIAL REFERENCE TO OPPORTUNITIES FOR SOUTH AFRICA
'n Ontleding van die VSA invoer mark vir wyn met spesiale verwysing na geleenthede vir Suid-Afrika
Creators: name: Van Der Vyver, Andre
name: Van Der Vyver, Andre
Publisher: name: Unknown
Year: 1993
Subjects: Crop Production/Industries
International Relations/Trade

description: The US is the fourth largest importer of wine in the world. Wine consumers do not freely substitute one type of wine for another therefore each segment of the industry could represent a niche market for a certain type of wine. Wine is almost exclusively sold through labelling and brand recognition. Brand strength can be measured. Well known brands are consistantly out selling others. Varietals, e.g. Chardonnay, have shown the most growth in recent years. US wine imports have declined substantially since 1985 but certain categories/varietals/brands still show growth. Wine should be pricecompetive within the quality category it is perceived to be. There are distinct price boundaries or price points for any given varietal. The relative medium priced wines, $5-10 per bottle, show the most growth. SA wines can be exported profitably within most categories. However, selecting the target market and price category to match the product and brand is important.
Optical photometry and spectral classification in the field of the open cluster NGC 6996 in the North America Nebula
Creators: name: Villanova, Sandro
name: Baume, Gustavo
name: Carraro, Giovanni
name: Geminale, Anna
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present and discuss broad band CCD $UBV(I)_C$ photometry and low resolution spectroscopy for stars in the region of the open cluster NGC 6996, located in the North America Nebula. The new data allow us to tightly constrain the basic properties of this object. We revise the cluster size, which in the past has been significantly underestimated. The width of the Main Sequence is mainly interpreted in terms of differential reddening, and indeed the stars' color excess $E_{B-V}$ ranges from 0.43 to 0.65, implying the presence of a significant and evenly distributed dust component. We cross-correlate our optical photometry with near infrared from 2MASS, and by means of spectral classification we are able to build up extinction curves for an handful of bright members. We find that the reddening slope and the total to selective absorption ratio $R_V$ toward NGC 6996 are anomalous. Moreover the reddening corrected colors and magnitudes allow us to derive estimates for the cluster distance and age, which turn out to be $760 \pm 70 pc$ ($V_{0}-M_{V} = 9.4 \pm 0.2$) and $\sim 350$ Myr, respectively. Basing on our results, we suggest that NGC 6996 is located in front of the North America Nebula, and does not seem to have any apparent relationship with it.
description: 19 pages, 12 eps figures, in press in A&A
SARS-CoV-2 Aerosol Transmission Indoors: A Closer Look at Viral Load, Infectivity, the Effectiveness of Preventive Measures and a Simple Approach for Practical Recommendations
Creators: name: Kriegel, Martin
name: Hartmann, Anne
name: Buchholz, Udo
name: Seifried, Janna
name: Baumgarte, Sigrid
name: Gastmeier, Petra
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 610 Medizin und Gesundheit
subject: airborne transmission
subject: infection prevention
subject: risk assessment model
subject: simplified approaches
subject: SARS-CoV-2

description: There is uncertainty about the viral loads of infectious individuals required to transmit COVID-19 via aerosol. In addition, there is a lack of both quantification of the influencing parameters on airborne transmission and simple-to-use models for assessing the risk of infection in practice, which furthermore quantify the influence of non-medical preventive measures. In this study, a dose–response model was adopted to analyze 25 documented outbreaks at infection rates of 4–100%. We show that infection was only possible if the viral load was higher than 108 viral copies/mL. Based on mathematical simplifications of our approach to predict the probable situational attack rate (PARs) of a group of persons in a room, and valid assumptions, we provide simplified equations to calculate, among others, the maximum possible number of persons and the person-related virus-free air supply flow necessary to keep the number of newly infected persons to less than one. A comparison of different preventive measures revealed that testing contributes the most to the joint protective effect, besides wearing masks and increasing ventilation. In addition, we conclude that absolute volume flow rate or person-related volume flow rate are more intuitive parameters for evaluating ventilation for infection prevention than air exchange rate.
Etale homotopy types of moduli stacks of algebraic curves with symmetries
Creators: name: Frediani, Paola
name: Neumann, Frank
Publisher: name: arXiv
Year: 2004
Subjects: subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 14F35; 14H10

description: Using the machinery of etale homotopy theory a' la Artin-Mazur we determine the etale homotopy types of moduli stacks over $\bar{\Q}$ parametrizing families of algebraic curves of genus g greater than 1 endowed with an action of a finite group G of automorphisms, which comes with a fixed embedding in the mapping class group, such that in the associated complex analytic situation the action of G is precisely the differentiable action induced by this specified embedding of G in the mapping class group.
description: 27 pages
Chlerogella Michener 1954
Creators: name: RAMOS, KELLI S.
name: KAWADA, RICARDO
name: BRANDÃO, CARLOS ROBERTO F.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Halictidae
Chlerogella

description: Chlerogella Michener
  Chlerogella cochabambensis Engel, 2010: 9  Paratype: 1♀ ‘ Bolivia: Cochabamba, Cochabamba, 109 km E. Yungas (Cochabamba – Villa Tunari Rd.), 1480 m, 17°8’50”S / 65°42’29”W, 01-06.ii.1999, F. Genier [col.], Bol1G99 027, ex. flight intercept trap’.
description: Published as part of RAMOS, KELLI S., KAWADA, RICARDO & BRANDÃO, CARLOS ROBERTO F., 2015, Type specimens of bees (Hymenoptera, Apidae) deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil, pp. 335-361 in Papéis Avulsos de Zoologia (São Paulo) (São Paulo) 55 (24) on page 353, DOI: 10.1590/0031-1049.2015.55.24, http://zenodo.org/record/4656393
Additional file 1 of Entropy based analysis of vertebrate sperm protamines sequences: evidence of potential dityrosine and cysteine-tyrosine cross-linking in sperm protamines
Creators: name: Powell, Christian D.
name: Kirchoff, Daniel C.
name: DeRouchey, Jason E.
name: Moseley, Hunter N. B.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer

description: Additional file 1 The additional figures and tables referenced within this article are available in the figshare repository, https://doi.org/10.6084/m9.figshare.10292573.v1 [40]. The supplemental information file (.pdf) can be found in the.zip archive under ProtamineAnalysisFigshare/Docs/supplemmental.pdf.
AP-MTL: Attention Pruned Multi-task Learning Model for Real-time Instrument Detection and Segmentation in Robot-assisted Surgery
Creators: name: Islam, Mobarakol
name: VS, Vibashan
name: Ren, Hongliang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Surgical scene understanding and multi-tasking learning are crucial for image-guided robotic surgery. Training a real-time robotic system for the detection and segmentation of high-resolution images provides a challenging problem with the limited computational resource. The perception drawn can be applied in effective real-time feedback, surgical skill assessment, and human-robot collaborative surgeries to enhance surgical outcomes. For this purpose, we develop a novel end-to-end trainable real-time Multi-Task Learning (MTL) model with weight-shared encoder and task-aware detection and segmentation decoders. Optimization of multiple tasks at the same convergence point is vital and presents a complex problem. Thus, we propose an asynchronous task-aware optimization (ATO) technique to calculate task-oriented gradients and train the decoders independently. Moreover, MTL models are always computationally expensive, which hinder real-time applications. To address this challenge, we introduce a global attention dynamic pruning (GADP) by removing less significant and sparse parameters. We further design a skip squeeze and excitation (SE) module, which suppresses weak features, excites significant features and performs dynamic spatial and channel-wise feature re-calibration. Validating on the robotic instrument segmentation dataset of MICCAI endoscopic vision challenge, our model significantly outperforms state-of-the-art segmentation and detection models, including best-performed models in the challenge.
description: Accepted in the conference of ICRA 2020
Comment on: "Estimating the Hartree-Fock limit from finite basis set calculations" [Jensen F (2005) Theor Chem Acc 113:267]
Creators: name: Karton, Amir
name: Martin, Jan M. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We demonstrate that a minor modification of the extrapolation proposed by Jensen [(2005): Theor Chem Acc 113:267] yields very reliable estimates of the Hartree-Fock limit in conjunction with correlation consistent basis sets. Specifically, a two-point extrapolation of the form $E_{HF,L}=E_{HF,\infty}+A(L+1)\exp(-9\sqrt{L})$ yields HF limits $E_{HF,\infty}$ with an RMS error of 0.1 millihartree using aug-cc-pVQZ and aug-cc-pV5Z basis sets, and of 0.01 millihartree using aug-cc-pV5Z and aug-cc-pV6Z basis sets.
description: Theoretical Chemistry Accounts, in press
Heavy-Quark production in proton-nucleus collision at the LHC
Creators: name: Cattaruzza, E.
name: Del Fabbro, A.
name: Treleani, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A sizable rate of events, with several pairs of heavy-quarks produced contemporarily by multiple parton interactions, may be expected at very high energies as a consequence of the large parton luminosities. The production rates are enhanced in hadron-nucleus reactions, which may represent a convenient tool to study the phenomenon. We compare the different contributions to ccbar bbar pairs production due to single and double parton scatterings, in collisions of protons with nuclei at the CERN-LHC.
description: 12 pages, 6 figures, submitted to Phys.Rev.D
The European Free Trade Association without the United Kingdom, Denmark, and Norway: Implications for Agricultural Exports of the Remaining EFTA Countries and the United States
Creators: name: Lopes, James
name: Phillips, Donald M.
name: Lopes, James
name: Phillips, Donald M.
Publisher: name: Unknown
Year: 1972
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: Political Economy
subject: European Free Trade Association (EFTA)
subject: Austria
subject: Portugal
subject: Switzerland
subject: Sweden
subject: Finland
subject: United Kingdom
subject: Denmark
subject: Norway
subject: European Community (EC)
subject: Agricultural trade
subject: Import restrictions

description: The agricultural trade of Austria, Portugal, Switzerland, Sweden, and Finland--all members of the European Free Trade Association (EFTA)--is examined. The report focuses on (1) their agricultural exports to the United Kingdom, Denmark, and Norway, which will leave EFTA and join the European Community (EC) on January 1, 1973, and (2) the adverse effects that EC enlargement could have on such exports. The report briefly discusses trade arrangements now being negotiated between the EC and the remaining EFTA countries, as well as the susceptibility of U.S. agricultural exports to the increased competition that could result from conclusion of these agreements.