cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Protection of Paper-Packaged Fruits and Vegetables Displayed on Ice
Creators: name: Tolle, W. E.
name: Tolle, W. E.
Publisher: name: Unknown
Year: 1958
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods

description: Excerpt from the report Summary: Paper packages of fresh produce placed directly on ice often become unsalable due to absorbed water, thereby adding to marketing costs for these products. This study was made to determine what the retailer could do to eliminate the cost and the inconvenience of repackaging such merchandise. The study included tests on 15 kinds of ice covers to learn whether any of them would prevent water damage to packages displayed and yet would allow adequate refrigeration of the produce.
Osbornellus afflexus Dominguez & Godoy 2010, sp. nov.
Creators: name: Domínguez, Edwin
name: Godoy, Carolina
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Osbornellus
Osbornellus afflexus

description: Osbornellus afflexus Domínguez & Godoy, sp. nov.
(Figs. 28a–28e)
 Description. Length: 6.3–7.2 mm. Member of the O. auronitens group (Figs. 4). Vertex angulate, median length about equal to distance between eyes at posterior margin. General color reddish. Face pale brown. Apex of vertex with a thin, transverse, pale yellow band that extends to ocellus and is bordered on each side by black; sometimes with short straight lines posteriorly. Frequently without band, only reddish brown, sometimes broad, bright red transverse band across median half of vertex, yellow band along the posterior margin. Pronotum and scutellum orange. Anterior wing transparent yellowish, usually with brown spots along costa and commissural line.
 Male genitalia: Pygofer less than twice as long as wide, moderately projected posteriorly, apex wide and rounded; macrosetae long, distributed along apical third of pygofer (Fig. 28a). Valve oval, margins rounded. Plates long, apex pointed, setae plumose (Fig. 28b). Style with apophysis long and straight (Fig. 28c). Aedeagus in ventral view wide at base; shaft with apex rounded, one third the length of the ventral processes (Fig. 28d). Ventral processes arising very close to base, wide and slightly curved distally, convergent apically, apices pointed. In lateral view shaft slender, very curved dorsad (almost semicircular), tip rounded, shorter than ventral process; dorsal projection narrow, pointed, straight. Gonopore subapical. Ventral processes divergent from shaft, longer than shaft, directed dorso-caudad, apices pointed (Fig. 28e).
 Diagnosis. The aedeagus is very similar to O. maesi, but O. afflexus is reddish brown, the vertex is triangular, and the aedeagal shaft in lateral view is almost semicircular. In O. maesi the shaft is only slightly curved and the ventral processes are diverent in lateral view.
 Distribution. Known from Costa Rica and Panama; 1100–1800 m.
 Etymology. This species is named for the strongly curved aedeagal shaft in lateral view.
 Type material: Holotype, male, COSTA RICA: Puntarenas, Camino a las Tablas, 1800 m, 24-V-1998, E. Navarro (INBio). Paratype: COSTA RICA: Guanacaste: Liberia, Mayorga, 1100–1400 m. Puntarenas: Coto Brus, Pittier, 900 m; Coto Brus, Sabalito, 1600–1800 m (INBio). PANAMA, Chiriquí, 1 female, Boquete, 1250m 8º48' N: 82º26' W, 20-III-1976, Coll. H. Wolda (USNM).
description: Published as part of Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, pp. 1-106 in Zootaxa 2702 on pages 37-39
Decoupling of Degenerate Positive-norm States in Witten's String Field Theory
Creators: name: Kao, Hsien-Chung
name: Lee, Jen-Chi
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the degenerate positive-norm physical propagating fields of the open bosonic string can be gauged to the higher rank fields at the same mass level. As a result, their scattering amplitudes can be determined from those of the higher spin fields. This phenomenon arises from the existence of two types of zero-norm states with the same Young representations as those of the degenerate positive-norm states in the old covariant first quantized (OCFQ) spectrum. This is demonstrated by using the lowest order gauge transformation of Witten's string field theory (WSFT) up to the fourth massive level (spin-five), and is found to be consistent with conformal field theory calculation based on the first quantized generalized sigma-model approach. In particular, on-shell conditions of zero-norm states in OCFQ stringy gauge transformation are found to correspond, in a one-to-one manner, to the background ghost fields in off-shell gauge transformation of WSFT. The implication of decoupling of scalar modes on Sen's conjectures was also briefly discussed.
description: 18 pages, use Latex with revtex4
SpaRCe: Improved Learning of Reservoir Computing Systems through Sparse Representations
Creators: name: Manneschi, Luca
name: Lin, Andrew C.
name: Vasilaki, Eleni
Publisher: name: arXiv
Year: 2019
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: "Sparse" neural networks, in which relatively few neurons or connections are active, are common in both machine learning and neuroscience. Whereas in machine learning, "sparsity" is related to a penalty term that leads to some connecting weights becoming small or zero, in biological brains, sparsity is often created when high spiking thresholds prevent neuronal activity. Here we introduce sparsity into a reservoir computing network via neuron-specific learnable thresholds of activity, allowing neurons with low thresholds to contribute to decision-making but suppressing information from neurons with high thresholds. This approach, which we term "SpaRCe", optimises the sparsity level of the reservoir without affecting the reservoir dynamics. The read-out weights and the thresholds are learned by an on-line gradient rule that minimises an error function on the outputs of the network. Threshold learning occurs by the balance of two opposing forces: reducing inter-neuronal correlations in the reservoir by deactivating redundant neurons, while increasing the activity of neurons participating in correct decisions. We test SpaRCe on classification problems and find that threshold learning improves performance compared to standard reservoir computing. SpaRCe alleviates the problem of catastrophic forgetting, a problem most evident in standard echo state networks and recurrent neural networks in general, due to increasing the number of task-specialised neurons that are included in the network decisions.
Physical Fitness and Body Weight in Pre-Adolescent School Children: The EUROFIT Motor Fitness Test Explored on 11-12-Year-Old Children
Creators: name: Russo, Gabriele
name: Marini, Sofia
name: Masini, Alice
name: Dallolio, Laura
name: Ceciliani, Andrea
Publisher: name: figshare
Year: 2021
Subjects: subject: 110699 Human Movement and Sports Science not elsewhere classified
subject: FOS: Health sciences

description: Nowadays, the early prevention of obesity in childhood is one of the most critical public health issues. More than half of children and adolescents worldwide do not meet the recommendation of 60 minutes of moderate to vigorous physical activity per day. This trend can reduce physical fitness and, consequently, cause a decrease in the quality of life throughout the lifespan. Physical fitness, defined as a set of abilities to perform physical activity and exercise (such as aerobic capacity, endurance, strength, flexibility), is considered one of the most important health markers in adulthood and childhood as well as adolescence. Methods: We conducted a cross-sectional study to investigate the physical fitness of pre-adolescent children of the Emilia-Romagna region. Children’s anthropometric parameters (height and weight) and physical fitness levels - assessed via the EUROFIT test battery - were measured. In all of the applied EUROFIT tests, children’s performance was below the su?cient age and gender values. Moreover, it was negatively associated with obesity.
Our research provided evidence that the general fitness of our sample was low and the performance of overweight/obese children was lower compared to the under/normal weight students.
Quantum wells, wires and dots with finite barrier: analytical expressions for the bound states
Creators: name: Leyronas, X.
name: Combescot, M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: From a careful study of the transcendental equations fulfilled by the bound state energies of a free particle in a quantum well, cylindrical wire or spherical dot with finite potential barrier, we have derived analytical expressions of these energies which reproduce impressively well the numerical solutions of the corresponding transcendental equations for all confinement sizes and potential barriers, without any adjustable parameter. These expressions depend on a unique dimensionless parameter which contains the barrier height and the sphere, wire or well radius.
description: 4 pages, 3 figures
White meat economy in Egypt: An econometric framework
Creators: name: Soliman, Ibrahim
name: K. Abdou, Dyaa
name: Soliman, Ibrahim
name: K. Abdou, Dyaa
Publisher: name: Unknown
Year: 1983
Subjects: subject: Farm Management
subject: Production Economics
subject: Public Economics
subject: White meat economy in Egypt: An econometric framework
subject: white meat
subject: Egypt

description: 8th International Congress for Statistics, Computer science, social and demographic research, 26-31 March 1983, Ain Shams University
Production of Biofuels from Various Lignocellulosic Waste Streams by Liquefaction and Hydropyrolysis
Creators: name: Siu, Regina
name: Nowakowski, Daniel
name: Bridgwater, Tony
Publisher: name: Zenodo
Year: 2019
Subjects: Biofuels
Biomass
Lignocellulosic waste
Hydrothermal liquefaction
Hydropyrolysis

description: Poster presentation delivered by Regina Siu (Aston University, United Kingdom) during the 27th European Biomass Conference & Exhibition (EUBCE) – Lisbon, Portugal (27-30.05.2019).
Multiplicative Chow-Künneth decompositions and varieties of cohomological K3 type
Creators: name: Fu, Lie
name: Laterveer, Robert
name: Vial, Charles
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14C15, 14C25, 14C30, 14J45, 14J29

description: Given a smooth projective variety, a Chow-Künneth decomposition is called multiplicative if it is compatible with the intersection product. Following works of Beauville and Voisin, Shen and Vial conjectured that hyper-Kähler varieties admit a multiplicative Chow-Künneth decomposition. In this paper, based on the mysterious link between Fano varieties with cohomology of K3 type and hyper-Kähler varieties, we ask whether Fano varieties with cohomology of K3 type also admit a multiplicative Chow-Künneth decomposition, and provide evidence by establishing their existence for cubic fourfolds and Küchle fourfolds of type c7. The main input in the cubic hypersurface case is the Franchetta property for the square of the Fano variety of lines; this was established in our earlier work in the fourfold case and is generalized here to arbitrary dimension. On the other end of the spectrum, we also give evidence that varieties with ample canonical class and with cohomology of K3 type might admit a multiplicative Chow-Künneth decomposition, by establishing this for two families of Todorov surfaces.
description: 34 pages; updated numbering of sections to match published version
Additional file 1: of Decrease of the plasmatic endocan cleavage ratio is associated with the hyperinflammatory phenotype of acute respiratory distress syndrome
Creators: name: Gaudet, Alexandre
name: Parmentier, Erika
name: Caires, Nathalie De Freitas
name: Portier, Lucie
name: Dubucquoi, Sylvain
name: Poissy, Julien
name: Duburcq, Thibault
name: Hureau, Maxence
name: Lassalle, Philippe
name: Mathieu, Daniel
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Science Policy

description: Cohort baseline characteristics. Continuous and categorical variables are described as median [interquartile range] and number (percentage), respectively. COPD chronic obstructive pulmonary disease SOFA Sequential Organ Failure Assessment ICU intensive care unit SAPS 2 Simplified Acute Physiology Score 2 LIPS Lung Injury Prediction Score. (DOC 45 kb)
Jour Fixe Forschungsdatenmanagement. Aufbau am Standort, ganz praktisch.
Creators: name: Strauch-Davey, Annette
Publisher: name: Zenodo
Year: 2022
Subjects: FDM
Forschungsdaten
Forschungsdatenmanagement
research data
research data management

description: Diese Folien sind im Rahmen des "50. Jour Fixe FDM" entstanden. Mittwoch, 12.01.2022, 14:00-16:00 Uhr  Thema: Standortstrategien für den Aufbau von FDM-Services Eva Eilert und Stefanie Söhnitz (Hochschule Düsseldorf): Open Science – Route planen und los? Annette Strauch-Davey (Universität Hildesheim): Forschungsnaher Dienst einer Universitätsbibliothek
Experimental quantum secret sharing with spin-orbit structured photons
Creators: name: de Oliveira, Michael
name: Nape, Isaac
name: Pinnell, Jonathan
name: TabeBordbar, Najmeh
name: Forbes, Andrew
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: Optics (physics.optics)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Secret sharing allows three or more parties to share secret information which can only be decrypted through collaboration. It complements quantum key distribution as a valuable resource for securely distributing information. Here we take advantage of hybrid spin and orbital angular momentum states to access a high dimensional encoding space, demonstrating a protocol that is easily scalable in both dimension and participants. To illustrate the versatility of our approach, we first demonstrate the protocol in two dimensions, extending the number of participants to ten, and then demonstrate the protocol in three dimensions with three participants, the highest realisation of participants and dimensions thus far. We reconstruct secrets depicted as images with a fidelity of up to 0.979. Moreover, our scheme exploits the use of conventional linear optics to emulate the quantum gates needed for transitions between basis modes on a high dimensional Hilbert space with the potential of up to 1.225 bits of encoding capacity per transmitted photon. Our work offers a practical approach for sharing information across multiple parties, a crucial element of any quantum network.
description: 10 pages, 7 figures, structure and figures revised
Osbornellus costaricensis Dominguez & Godoy 2010, sp. nov.
Creators: name: Domínguez, Edwin
name: Godoy, Carolina
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Osbornellus
Osbornellus costaricensis

description: Osbornellus costaricensis Domínguez & Godoy, sp. nov.
(Figs. 33a–33e)
 Description. Length: 6.2 mm. Member of the O. rarus group (Fig. 1b). Vertex angulate, median length about equal to distance between eyes at posterior margin (Fig. 1b). General color and vertex similar to O. rarus; rest of vertex mottled yellow-brown; coronal suture brown, bordered with white. Pronotum as in O. rarus. Scutellum mottled yellow-brown with yellow at center, bordered with pale yellow laterally, brown spot in basal angle margined with orange, posteriorly with white spot along each lateral margin. Anterior wing as in other members of this species group.
 Male genitalia: Pygofer about twice as long as greatest width, moderately projected posteriorly, apex wide and rounded; macrosetae medium-sized, few in number, dispersed along apical third of pygofer (Fig. 33a). Valve triangular, margins rounded on anterior half, slightly curved. Plates short, base very wide, tapered from middle to apex, apex rounded, with a few short, dispersed setae (Fig. 33b). Style with apophysis long, straight, apex truncate (Fig. 33c). In ventral view aedeagus wide at base, curved in the middle, uniformly wide and straight; shaft shorter than ventral processes, hidden by ventral processes; lateral extensions of dorsal projection just showing to each side of ventral processes (Fig. 33d). Gonopore subapical. Ventral processes arising close to base of aedeagus, crossing one another, wide, tapered to pointed apices. In lateral view shaft wide, curved caudad in the middle, apex rounded, shorter than ventral processes; dorsal projection expanded, truncate, straight. Ventral processes very separated from shaft basaly, with basal spine, straight but slightly curved dorsad, apices narrow and rounded (Fig. 33e).
 Diagnosis. Very similar externally to O. rarus and O. latus, but in ventral view the ventral processes of O. costaricensis cross one another in the apical fourth and there is a spine at the base of the processes. In O. latus and O. rarus the ventral processes do not cross and lack a spine.
 Distribution. Known only from Costa Rica; 2640–2700 m.
 Etymology. This species is named for the country in which it has been collected.
 Type material: Holotype, male, COSTA RICA: San José, Estación Cuerici, Sendero al Mirador, 4.6 Km al E. de Villa Mills, 2640 m, 17-22-III-1996, A. Picado (INBio). Paratype: COSTA RICA: San José: 1 female, 4.6 Km al E. de Villa Mills, Estación Cuerici, Sendero al Mirador, 2700m, 24-III-1996, A. Picado (INBio).
description: Published as part of Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, pp. 1-106 in Zootaxa 2702 on pages 46-47
Molecular platform for frequency upconversion at the single-photon level
Creators: name: Roelli, Philippe
name: Martin-Cano, Diego
name: Kippenberg, Tobias J.
name: Galland, Christophe
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Direct detection of single photons at wavelengths beyond 2 microns under ambient conditions remains an outstanding technological challenge. One promising approach is frequency upconversion into the visible (VIS) or near-infrared (NIR) domain, where single photon detectors are readily available. Here, we propose a nanoscale solution based on a molecular optomechanical platform to up-convert photons from the far and mid-infrared (covering part of the THz gap) into the VIS-NIR domain. We perform a detailed analysis of its outgoing noise spectral density and conversion efficiency with a full quantum model. Our platform consists in doubly resonant nanoantennas focusing both the incoming long-wavelength radiation and the short-wavelength pump laser field into the same active region. There, infrared active vibrational modes are resonantly excited and couple through their Raman polarizability to the pump field. This optomechanical interaction is enhanced by the antenna and leads to the coherent transfer of the incoming low-frequency signal onto the anti-Stokes sideband of the pump laser. Our calculations demonstrate that our scheme is realizable with current technology and that optimized platforms can reach single photon sensitivity in a spectral region where this capability remains unavailable to date.
The CWKB Method of Particle Production in Periodic Potential
Creators: name: Biswas, S.
name: Misra, P.
name: Chowdhury, I.
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work we study the particle production in time dependent periodic potential using the method of complex time WKB (CWKB) approximation. In the inflationary cosmology at the end of inflationary stage, the potential becomes time dependent as well as periodic. Reheating occurs due to particle production by the oscillating inflaton field. Using CWKB we obtain almost identical results on catastrophic particle production as obtained by others.
description: 17 pages, latex, 2 figures
Delay-Constrained Joint Power Control, User Detection and Passive Beamforming in Intelligent Reflecting Surface Assisted Uplink mmWave System
Creators: name: Cao, Yashuai
name: Lv, Tiejun
name: Lin, Zhipeng
name: Ni, Wei
Publisher: name: arXiv
Year: 2019
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Millimeter-wave (mmWave) communications provide access to spectra with bandwidths and in abundance. However, the high susceptibility of mmWave to blockage imposes crucial challenges, especially to low-latency services. In this paper, a novel intelligent reflecting surface (IRS) assisted mmWave scheme is proposed to overcome the impact of blockage. New methods are developed to minimize the user power for a multi-user mmWave system by jointly optimizing individual device power, multi-user detection matrix and passive beamforming, subject to delay requirements. An alternating optimization framework is delivered so that the joint optimization problem can be decomposed into three subproblems iteratively optimized till convergence. In particular, closed-form expressions are devised for the update of the powers and multi-user detection vectors. The configuration of the IRS is formulated as a sum-of-inverse minimization (SIMin) fractional programming problem and solved by developing a new solution based on the alternating direction method of multipliers (ADMM). The configuration is also interpreted as a latency residual maximization problem, and solved efficiently by designing a new complex circle manifold optimization (CCMO) method. Numerical results corroborate the feasibility and effectiveness of our algorithms in terms of power saving, as compared with an existing semidefinite relaxation technique.
description: accepted by IEEE Transactions on Cognitive Communications and Networking. arXiv admin note: substantial text overlap with arXiv:1912.06361
MHD Simulations of Bondi Accretion to a Star in the "Propeller" Regime
Creators: name: Romanova, M. M.
name: Toropina, O. D.
name: Toropin, Yu. M.
name: Lovelace, R. V. E.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This work investigates Bondi accretion to a rotating magnetized star in the "propeller" regime using axisymmetric resistive, magnetohydrodynamic simulations. In this regime accreting matter tends to be expelled from the equatorial region of the magnetosphere where the centrifugal force on matter rotating with the star exceeds the gravitational force. The regime is predicted to occur if the magnetospheric radius larger than the corotation radius and less than the light cylinder radius. The simulations show that accreting matters is expelled from the equatorial region of the magnetosphere and that it moves away from the star in a supersonic, disk-shaped outflow. At larger radial distances the outflow slows down and becomes subsonic. The equatorial matter outflow is initially driven by the centrifugal force, but at larger distances the pressure gradient becomes significant. We find that the star is spun-down mainly by the magnetic torques at its surface with the rate of loss of angular momentum $\dot{L}$ proportional to $-Ω_*^{1.3}μ^{0.8}$, where $Ω_*$ is the star's rotation rate and $μ$ is its magnetic moment. Further, we find that $\dot{L}$ is approximately independent of the magnetic diffusivity of the plasma $η_m$. The fraction of the Bondi accretion rate which accretes to the surface of the star is found to be $\proptoΩ_*^{-1.0}μ^{-1.7}η_m^{0.4}$. Predictions of this work are important for the observability of isolated old neutron stars and for wind fed pulsars in X-ray binaries.
description: 10 figures, submitted to ApJ
Parallel Computing on a PC Cluster
Creators: name: Luo, X. Q.
name: Gregory, E. B.
name: Yang, J. C.
name: Wang, Y. L.
name: Chang, D.
name: Lin, Y.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: D.1.3

description: The tremendous advance in computer technology in the past decade has made it possible to achieve the performance of a supercomputer on a very small budget. We have built a multi-CPU cluster of Pentium PC capable of parallel computations using the Message Passing Interface (MPI). We will discuss the configuration, performance, and application of the cluster to our work in physics.
description: 3 pages, uses Latex and aipproc.cls
br26a_doi.pdf
Creators: name: Russo, Gabriele
name: Marini, Sofia
name: Masini, Alice
name: Dallolio, Laura
name: Ceciliani, Andrea
Publisher: name: figshare
Year: 2021
Subjects: subject: 110699 Human Movement and Sports Science not elsewhere classified
subject: FOS: Health sciences

description: Nowadays, the early prevention of obesity in childhood is one of the most critical public health issues. More than half of children and adolescents worldwide do not meet the recommendation of 60 minutes of moderate to vigorous physical activity per day. This trend can reduce physical fitness and, consequently, cause a decrease in the quality of life throughout the lifespan. Physical fitness, defined as a set of abilities to perform physical activity and exercise (such as aerobic capacity, endurance, strength, flexibility), is considered one of the most important health markers in adulthood and childhood as well as adolescence. Methods: We conducted a cross-sectional study to investigate the physical fitness of pre-adolescent children of the Emilia-Romagna region. Children’s anthropometric parameters (height and weight) and physical fitness levels - assessed via the EUROFIT test battery - were measured. In all of the applied EUROFIT tests, children’s performance was below the su?cient age and gender values. Moreover, it was negatively associated with obesity.
Our research provided evidence that the general fitness of our sample was low and the performance of overweight/obese children was lower compared to the under/normal weight students.
Deep Convolutions for In-Depth Automated Rock Typing
Creators: name: Baraboshkin, E. E.
name: Ismailova, L. S.
name: Orlov, D. M.
name: Zhukovskaya, E. A.
name: Kalmykov, G. A.
name: Khotylev, O. V.
name: Baraboshkin, E. Yu.
name: Koroteev, D. A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.4.8; I.4.10

description: The description of rocks is one of the most time-consuming tasks in the everyday work of a geologist, especially when very accurate description is required. We here present a method that reduces the time needed for accurate description of rocks, enabling the geologist to work more efficiently. We describe the application of methods based on color distribution analysis and feature extraction. Then we focus on a new approach, used by us, which is based on convolutional neural networks. We used several well-known neural network architectures (AlexNet, VGG, GoogLeNet, ResNet) and made a comparison of their performance. The precision of the algorithms is up to 95% on the validation set with GoogLeNet architecture. The best of the proposed algorithms can describe 50 m of full-size core in one minute.
description: 25 pages, 9 figures, 3 tables, submitted to Computers and Geosciences Journal. Keywords: Core Image; Description; Convolutional Neural Networks; Representation; Geology; Lithotypes
Trends in the United States Sugar Industry: Production, Processing, Marketing
Creators: name: Agricultural Marketing Service, Market Organization
name: Agricultural Marketing Service, Market Organization
Publisher: name: Unknown
Year: 1958
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business

description: Excerpts from the report Preface: A large volume of statistics on the United States sugar industry is available in Government reports, trade journals, and private reports. For a better public understanding of one of our important food industries, there is need for a summary of readily available information on production, processing, marketing, and consumption of sugar. The Sugar Research and Marketing Advisory Committee, at its meeting of January 9-11, 1957, recommended that the Department "initiate a study of trends and interrelationships within the sugar industry to supply basic facts relating to beet and sugarcane production, processing, and refining, products and markets, trade channels and prices." This report presents a summary of the domestic sugar industry and some of the more important changes which took place from 1948 to 1957, the latest year for which reasonably complete data are now available.
Xylella fastidiosa: imminent risk to food security in Near East and North Africa Region
Creators: name: Thaer, Yaseen
Publisher: name: Zenodo
Year: 2021
Subjects: subject: plant health
subject: xylella
subject: http://id.agrisemantics.org/gacs/C20262

description: The first report of Xylella fastidiosa (XF) in southern Italy in 2013 has triggered great anxiety for agriculture business in the Mediterranean region. The presence of such a pathogen poses a serious threat to crop production, food security and employment in the region's rural areas. The favourable climatic conditions, the abundant insect vectors and the wide distribution of host plants would foster the spread of the disease. Propagation materials are considered the most likely means of long-distance spread. Thus, the risk for Near East and North Africa (NENA). For these reasons, such a “silent killer” requires an effective surveillance system to be operational before significant damage can be noticed, to act as an early warning system. Food and Agriculture Organisation (FAO) launched a regional project to support NENA countries in enforcing preventive measures against the introduction and spread of XF, FAO has provided training workshops, seminars, laboratory equipment, technical documents, awareness materials, and recently evaluated the potential socio-economic impact of the diseases on NENA countries. Support is still needed in the following areas: i). Policy support: by Enforcing and reforming the phytosanitary systems; and updating national contingency/action plans by providing the needed tools for implementation. ii). Research: Identification of potential insect vectors of XF; Prediction of the effect of climate change on disease development; Building regional laboratory network to harmonize protocols for detection; and Identification and development of local cultivars with inherited genetic resistance/tolerance for XF. Capacity building: Plan and implement an efficient and cost-effective surveillance programme; Development of the capacity of phytosanitary officers in inspection and sampling, national/regional platform for knowledge sharing; Improvement of technical capacity of plant quarantine at entry and post entry points; Development and application of innovative surveillance methods; and Improving capacities of farmers through farmer field schools.
description: IT; PDF; Thaer.yaseen@fao.org
Transverse Instability of Solitons Propagating on Current-Carrying Metal Thin Films
Creators: name: Bradley, R. Mark
Publisher: name: arXiv
Year: 2001
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Small amplitude, long waves travelling over the surface of a current-carrying metal thin film are studied. The equation of motion for the metal surface is determined in the limit of high applied currents, when surface electromigration is the predominant cause of adatom motion. If the surface height h is independent of the transverse coordinate y, the equation of motion reduces to the Korteweg-de Vries equation. One-dimensional solitons (i.e., those with h independent of y) are shown to be unstable against perturbations to their shape with small transverse wavevector.
description: 25 pages with 2 figures. To appear in Physica D
Degree-One Rational Cherednik Algebras for the Symmetric Group
Creators: name: Foster-Greenwood, Briana
name: Kriloff, Cathy
Publisher: name: arXiv
Year: 2019
Subjects: subject: Rings and Algebras (math.RA)
subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 16S80 (Primary) 16E40, 16S35, 20B30 (Secondary)

description: Drinfeld orbifold algebras deform skew group algebras in polynomial degree at most one and hence encompass graded Hecke algebras, and in particular symplectic reflection algebras and rational Cherednik algebras. We introduce parametrized families of Drinfeld orbifold algebras for symmetric groups acting on doubled representations that generalize rational Cherednik algebras by deforming in degree one. We characterize rich families of maps recording commutator relations with their linear parts supported only on and only off the identity when the symmetric group acts on the natural permutation representation plus its dual. This produces degree-one versions of $\mathfrak{gl}_n$-type rational Cherednik algebras. When the symmetric group acts on the standard irreducible reflection representation plus its dual there are no degree-one Lie orbifold algebra maps, but there is a three-parameter family of Drinfeld orbifold algebras arising from maps supported only off the identity. These provide degree-one generalizations of the $\mathfrak{sl}_n$-type rational Cherednik algebras $H_{0,c}$.
description: 35 pages, Preliminaries overlaps with Preliminaries of arXiv:1611.00410
Post-Minkowskian Scattering Angle in Einstein Gravity
Creators: name: Bjerrum-Bohr, N. E. J.
name: Cristofoli, Andrea
name: Damgaard, Poul H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using the implicit function theorem we demonstrate that solutions to the classical part of the relativistic Lippmann-Schwinger equation are in one-to-one correspondence with those of the energy equation of a relativistic two-body system. A corollary is that the scattering angle can be computed from the amplitude itself, without having to introduce a potential. All results are universal and provide for the case of general relativity a very simple formula for the scattering angle in terms of the classical part of the amplitude, to any order in the post-Minkowskian expansion.
description: 24 pages, minor corrections, published version to appear in JHEP
Comparison of the Investment Behavior of German and Kazakhstani Farmers: an Experimental Approach
Creators: name: Tubetov, Dulat
name: Maart, Syster Christin
name: Musshoff, Oliver
name: Tubetov, Dulat
name: Maart, Syster Christin
name: Musshoff, Oliver
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agricultural Finance
subject: Institutional and Behavioral Economics
subject: International Development
subject: Risk and Uncertainty
subject: Experimental Economics
subject: Investment Timing
subject: Real Options
subject: Kazakhstan
subject: Germany

description: Kazakhstan and Germany have different development levels of the agricultural sectors. One of the explanations for this fact might be the different investment behavior of farmers in the two countries. We experimentally analyze whether the investment behavior of farmers is consistent with the normative benchmarks of the net present value criterion or the real options approach. Furthermore, we experimentally compare the investment behavior of farmers in the two countries in an agricultural and a non-agricultural treatment. In addition, farmers were confronted with the two treatments in a different order. Our results show that both theories cannot exactly predict the investment behavior of farmers. Farmers invest later than the net present value criterion suggests and earlier than the real options approach suggests. However, German farmers invest later than Kazakhstani farmers, which mean that the investment behavior of German farmers is more in accordance with the superior real options approach. Therefore, the different investment behavior might partly be an explanation for different development levels of the agricultural sectors of the two countries. Moreover, results are independent from the framing of an agricultural and a non-agricultural treatment. However, farmers learn from their former investment decisions and consider the value of waiting over time.
description: Revised April 2012
Effective bosonic hamiltonian for excitons : a too naive concept
Creators: name: Combescot, M.
name: Betbeder-Matibet, O.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Excitons, being made of two fermions, may appear from far as bosons. Their close-to-boson character is however quite tricky to handle properly. Using our commutation technique especially designed to deal with interacting close-to-boson particles, we here calculate the exact expansion in Coulomb interaction of theexciton-exciton correlations, and show that a naive effective bosonic hamiltonian for excitons cannot produce these X-X correlations correctly.
Osbornellus ichnoscapitatus Dominguez & Godoy 2010, sp. nov.
Creators: name: Domínguez, Edwin
name: Godoy, Carolina
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Osbornellus
Osbornellus ichnoscapitatus

description: Osbornellus ichnoscapitatus Domínguez & Godoy, sp. nov.
(Figs. 48a–48e)
 Description. Length: 5.1 mm. Member of the species O. affinis group. Vertex angulate, median length about equal to distance between eyes at posterior margin. General color pale yellow. Anterior margin of vertex cream colored, sides of median line brown, but light orange near the eyes (Fig. 11). Pronotum as in other members of this species group. Scutellum light yellow, nearly white in center, with two yellowish orange marks in basal angle. Anterior wing as in other members of this species group.
 Male genitalia: Pygofer moderately projected posteriorly, apex wide, concave; macrosetae long, dispersed along apical half of pygofer (Fig. 48a). Valve ovate, margins rounded, curved in anterior half. Plates long, apex pointed, setae plumose (Fig. 48b). Style with apophysis short, straight, apex wide, truncate with lobe rounded (Fig. 48c). Aedeagus in ventral view with base quadrate, straight; shaft straight, slender longer than ventral processes, apex truncate (Fig. 48d). Ventral processes arising at one-third length of aedeagus, divergent to apices, slender, apices pointed. In lateral view shaft slender, straight, longer than ventral processes, apex truncate; dorsal projection long, slightly curved caudad, tapered to sharp tip. Gonopore apical. Ventral processes divergent, straight, apices pointed (Fig. 48e).
 Diagnosis. Similar to O. affinis, but in O. ichnoscapitatus the vertex has a cream colored band, whereas in O. affinis the vertex is unmarked. O. affinis has the aedeagal shaft similar in shape to that of O. ichnoscapitatus, but without sclerotized spirals on the ventral processes.
 Distribution. Known only from Costa Rica; 790–1500 m
 Etymology. This species is named for the markings on the head.
 Type material: Holotype, male, COSTA RICA: Puntarenas, Coto Brus, Estación Biológica Las Alturas, 1500m, XII-1991, P. Hanson (CAS). Paratype: COSTA RICA: Guanacaste: 1 female, La Cruz, Estación Cacao, 1000–1150m, XI-XII-1996, A. Masís (INBio); 1 female, 2 Km SW del Volcan Cacao, Estación Cacao, 1000–1400m, 1988–1989, GNP Biodiv. Survey (INBio); 1 female, Sector Santa Maria, 25 Km NE Liberia, 790m, 15-I-15-II-1997, D.Briceño (INBio). Puntarenas: 1 female, Estación Biológica Las Alturas, San Vito, 1500 m, III-1992, P. Hanson, Godoy (MZCR); 1 female, same locality and collector, XII-1991 (MZCR). San José: 1 female, Parque Natural Braulio Carrillo, 9.5 Km E del túnel, 1000m, II-IV-1990, P. Hanson (MZCR).
description: Published as part of Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, pp. 1-106 in Zootaxa 2702 on pages 71-72
The Process of Science: Introduction to Ecosystems, Conservation, and Team Science
Creators: name: Hansen, Sara
name: Ewing, Rhea
name: Linton, Debra
name: Monfils, Anna
Publisher: name: QUBES Educational Resources
Year: 2025

description: This interactive module features a team of scientists and real-world examples demonstrating how species interact with each other and their environnment and how science informs conservation.
The CWKB Method of Particle Production Near Chronology Horizon
Creators: name: Biswas, S.
name: Misra, P.
name: Chowdhury, I.
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we investigate the phenomenon of particle production of massles scalar field, in a model of spacetime where the chronology horizon could be formrd, using the method of complex time WKB approximation (CWKB). For the purpose, we take two examples in a model of spacetime, one already discussed by Sushkov, to show that the mode of particle production near chronology horizon possesses the similar characteristic features as are found while discussing particle production in time dependent curved background. We get identical results as that obtained by Sushkov in this direction. We find, in both the examples studied, that the total number of particles remain finite at the moment of the formation of the chronology horizon.
description: 8 pages, latex, to appear in GRG vol 34 (2002) in May issue
Gate-tunable Spin-Galvanic Effect in Graphene Topological insulator van der Waals Heterostructures at Room Temperature
Creators: name: Khokhriakov, Dmitrii
name: Hoque, Anamul Md.
name: Karpiak, Bogdan
name: Dash, Saroj P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Unique electronic spin textures in topological states of matter are promising for emerging spin-orbit driven memory and logic technologies. However, there are several challenges related to the enhancement of their performance, electrical gate-tunability, interference from trivial bulk states, and heterostructure interfaces. We address these challenges by integrating two-dimensional graphene with a three-dimensional topological insulator (TI) in van der Waals heterostructures to take advantage of their remarkable spintronic properties and engineer proximity-induced spin-charge conversion phenomena. In these heterostructures, we experimentally demonstrate a gate tunable spin-galvanic effect (SGE) at room temperature, allowing for efficient conversion of a nonequilibrium spin polarization into a transverse charge current. Systematic measurements of SGE in various device geometries via a spin switch, spin precession, and magnetization rotation experiments establish the robustness of spin-charge conversion in the Gr-TI heterostructures. Importantly, using a gate voltage, we reveal a strong electric field tunability of both amplitude and sign of the spin-galvanic signal. These findings provide an efficient route for realizing all-electrical and gate-tunable spin-orbit technology using TIs and graphene in heterostructures, which can enhance the performance and reduce power dissipation in spintronic circuits.
MOESM6 of Cryo-soft X-ray tomography as a quantitative three-dimensional tool to model nanoparticle:cell interaction
Creators: name: Chiappi, Michele
name: Conesa, José
name: Pereiro, Eva
name: Sorzano, Carlos
name: Rodríguez, María
name: Henzler, Katja
name: Schneider, Gerd
name: Chichón, Francisco
name: Carrascosa, José
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 5: Figure 4. Histograms showing distributions of SPION-containing vesicle size, distance to the nucleus, and distance to neighbouring endosomes at different incubation times. Y axis, frequency of events. A) Diameter. All distributions differ, according to Kolmogorov–Smirnov test. B) Distance to the nucleus. C) Distance to the four nearest SCV.
Dispersionless scalar integrable hierarchies, Whitham hierarchy and the quasi-classical dbar-dressing method
Creators: name: Konopelchenko, B.
name: Alonso, L. Martinez
Publisher: name: arXiv
Year: 2001
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The quasi-classical limit of the scalar nonlocal dbar-problem is derived and a quasi-classical version of the dbar-dressing method is presented. Dispersionless KP, mKP and 2DTL hierarchies are discussed as illustrative examples. It is shown that the universal Whitham hierarchy it is nothing but the ring of symmetries for the quasi-classical dbar-problem. The reduction problem is discussed and, in particular, the d2DTL equation of B type is derived.
description: LaTex file,19 pages
Integrative dereplication and molecular networking reveal potential antimicrobial agents in Kielmeyera coriacea Mart.
Creators: name: Coqueiro, Aline
name: Wakui, Vinicius Galvão
name: Pilon, Alan C.
name: Castilho, Nathália S.
name: Costa, Eliângela C. C.
name: Monteiro, Afif F.
name: dos Anjos, Charlene S.
name: Leandro, Luis Fernando
name: Martins, Carlos Henrique Gomes
name: Severino, Vanessa G. Pasqualotto
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: Kielmeyera coriacea Mart., native to Brazilian Cerrado, is traditionally used in folk medicine. The MIC against bacteria and yeasts was determined for the ethanolic extracts of roots, outer bark, leaves, and fruits. A dereplication strategy via HPLC-ESI-HRMS/MS and GNPS was used to identify known compounds and highlight potential compounds responsible for the activities. The root extract exhibited the most promising activity against a range of bacteria and fungi. This extract was selected for further fractionation, yielding n-hexane, ethyl acetate, and hydroalcoholic fractions. These were evaluated against the same microbial strains. Subsequent chromatographic analysis and bioactivity tests identified two highly active subfractions from the n-hexane and hydroalcoholic fractions. Detailed analysis using standards and databases (GNPS and Scifinder) led to the annotation of three xanthones (kielcorin, and its hydroxy- and methoxy- derivatives), three glycosylated flavonoids, and two acylphoroglucinol derivatives (garcinielliptone D e A).