cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Climato-stratigraphic subdivision of the Pleistocene in Schleswig-Holstein, Germany and adjoining areas
Creators: name: Stephan, Hans-Jürgen
Publisher: name: Geozon Science Media
Year: 2014

description: In Schleswig-Holstein detailed petrographical and palynological studies were undertaken with samples from exposures and core drillings examined over the last four decades. Analyses of the gravel fraction and ‘indicator rocks’ of glacial deposits were used for stratigraphical interpretations and correlation. Glaciofluvial sediments were dated by TL and OSL. Combined with the stratigraphical information from organic deposits, a new climato-stratigraphic table of the Pleistocene for Schleswig-Holstein with a revised subdivision of the Middle and Late Pleistocene could be established. The pollen sequence of the oldest Pleistocene warm phase (Warmhörn-Thermomer) is published for the first time. The complete Early Pleistocene and lower Middle Pleistocene stratigraphical sequence is documented at Lieth and at Gorleben (Lower Saxony) in two continuous successions of organic beds developed during warm phases alternating with cold phase deposits. The uppermost part of the Lieth succession and the lowermost part of Gorleben overlap. The combined succession provides a unique reference for correlations through Europe. No more than three cold stages involving glaciation are demonstrated to exist currently in Schleswig-Holstein, the Elsterian and the Saalian in the upper Middle Pleistocene, and the Weichselian in the Late Pleistocene. A possible pre-Elsterian glaciation is discussed. The Holsteinian is correlated with MIS 9e. The Saalian includes a lower part with non-glacial cold phases and warm phases, the ‘Wacken-Warmzeit’ (=Dömnitz) and the ‘Leck-Warmzeit’ correlated with MIS 7e and MIS 7c respectively, and a glacial upper part. During the Weichselian probably two phases of glaciation existed, the first in the early Middle Weichselian (‘Ellund-Phase’; late MIS 4 or/and the early MIS 3), the second in the Upper Weichselian (MIS 2). The Weichselian glaciation of Schleswig-Holstein ends around 15 ka BP when huge stagnant and dead ice masses of the Young Baltic glacier advance (‘Mecklenburg-Phase’) melted.
description: research
Mixing rates for symplectic almost Anosov maps
Creators: name: Eslami, Peyman
name: Liverani, Carlangelo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We establish sharp bounds on the mixing rates of a class of two dimensional non-uniformly hyperbolic symplectic maps. This provides a primer on how to investigate such questions in a concrete example and, at the same time, it solves a controversy between previous rigorous results and numerical experiments.
Signatures of Classical Diffusion in Quantum Fluctuations of 2D Chaotic Systems
Creators: name: Kottos, Tsampikos
name: Ossipov, Alexander
name: Geisel, Theo
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We consider a two-dimensional (2D) generalization of the standard kicked-rotor (KR) and show that it is an excellent model for the study of 2D quantum systems with underlying diffusive classical dynamics. First we analyze the distribution of wavefunction intensities and compare them with the predictions derived in the framework of diffusive {\it disordered} samples. Next, we turn the closed system into an open one by constructing a scattering matrix. The distribution of the resonance widths ${\cal P}(Γ)$ and Wigner delay times ${\cal P}(τ_W)$ are investigated. The forms of these distributions are obtained for different symmetry classes and the traces of classical diffusive dynamics are identified. Our theoretical arguments are supported by extensive numerical calculations.
description: 20 pages; 12 figures
Gauge-invariant effective fields in QCD and the strong charge screening
Creators: name: Kuzmenko, D. S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: This paper has been withdrawn by the author.
description: withdrawn
Changes to the Noninsured Crop Disaster Assistance Program Under the Agricultural Act of 2014: Their Potential Risk Reduction Impacts
Creators: name: Hungerford, Ashley
name: Astill, Gregory
name: Effland, Anne
name: Hungerford, Ashley
name: Astill, Gregory
name: Effland, Anne
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Risk and Uncertainty
subject: specialty crops
subject: risk management
subject: NAP
subject: Noninsured Crop Disaster Assistance Program
subject: Agricultural Act of 2014
subject: Federal crop insurance (FCI)

description: ERS examines impacts of the Buy-Up coverage addition to the Noninsured Crop Disaster Assistance Program (NAP) on expected payments, producers' risk reduction, and NAP enrollment by type of producer and crops.
Lesser Snow Geese and agricultural habitat use on the Fraser River delta
Creators: name: Bradbeer, David Ross
Publisher: name: University of British Columbia
Year: 2011

description: Lesser Snow Geese winter on the Fraser River delta of south-western British Columbia and feed on upland agricultural crops. With the recent loss of foreshore marsh habitat adjacent to the Vancouver International Airport, agricultural habitats have become more important. The loss of foreshore habitat, combined with a growing Snow Goose population, will increase the grazing pressure the birds exert on farm fields in West Delta. Because Snow Geese can overgraze perennial forage grasses, conflicts with farmers will likely escalate. Providing foraging opportunities for Snow Geese while minimizing the conflict between the geese and Delta farmers should be the goal of management efforts. To accomplish these goals, the Alaksen National Wildlife Area (ANWA) and Greenfields cover crop program must be managed in a way that attracts Snow Geese to these areas. From 1995 to 2000 Snow Geese used the Alaksen National Wildlife Area during both the fall and late winter hunting seasons. Fewer geese fed outside the Alaksen National Wildlife Area during open hunting seasons compared to when the seasons were closed. Snow Geese used perennial forage, cover crops, potato, and grain between 1995 and 2000. Between October 2005 and April 2006,1 documented patterns of agricultural field use on Westham Island and Brunswick Point and assessed how crop type, hunting, and field size influenced those patterns. I used foraging theory as a framework to assess how temporal changes in the quality and quantity of food influenced crop use. The main determinant of field use was crop type. Nutrient content appeared to be important to the order of crop use. Snow Geese used the crops that contained the highest concentrations of crude protein (cover crops) and simple carbohydrates (potatoes and barley grain) first in the fall and early winter. Perennial forage crops contained the highest concentration of indigestible crude fibre and were not used until the higher quality crops were depleted. Absolute crop biomass did not seem to influence crop use patterns because Snow Geese initially ignored perennial forage fields that contained more biomass than cover crop and potato fields. In March and April Snow Geese continued to use perennial forage fields, but also grain stubble and cover crop fields. Use of these fields may have been related to the presence of newly sprouting forbs and grasses. Snow Geese moved outside of the Alaksen National Wildlife Area despite an open hunting season in November 2005. Food depletion within the Alaksen National Wildlife Area may force Snow Geese to tolerate hunting pressure and was likely a factor that caused the geese to use fields outside the area.
Observing the build-up of the colour-magnitude relation at redshift ~0.8
Creators: name: De Lucia, G.
name: Poggianti, B. M.
name: Aragon-Salamanca, A.
name: Clowe, D.
name: Halliday, C.
name: Jablonka, P.
name: Milvang-Jensen, B.
name: Pello', R.
name: Poirier, S.
name: Rudnick, G.
name: Saglia, R.
name: Simard, L.
name: White, S. D. M.
name: collaboration, the EDisCS
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyse the rest-frame (U-V) colour-magnitude relation for 2 clusters at redshift 0.7 and 0.8, drawn from the ESO Distant Cluster Survey. By comparing with the population of red galaxies in the Coma cluster, we show that the high redshift clusters exhibit a deficit of passive faint red galaxies. Our results show that the red-sequence population cannot be explained in terms of a monolithic and synchronous formation scenario. A large fraction of faint passive galaxies in clusters today has moved onto the red sequence relatively recently as a consequence of the fact that their star formation activity has come to an end at z<0.8.
description: 5 pages, 2 figures, to appear in Proc. of IAU Colloq. 195: "Outskirts of Galaxy Clusters: Intense Life in the Suburbs" -- minor typos corrected
Norm regress : American revisionism and the slow death of the torture norm
Creators: name: McKeown, Ryder Luke Wilson
Publisher: name: University of British Columbia
Year: 2011

description: This thesis examines the status of the legal and moral norm against torture within post-9/11 America in an effort to determine how one of the strongest international norms came to be significantly weakened by its most important proponent, and ascertain what this means for the status of the norm internationally. I argue that key members of the Bush administration should be considered norm revisionists who have actively sought to reshape America's interpretation of its obligations in regards to the norm through discourse and policy that frames torture as a necessary tool in the War on Terror. The net result of this revisionism has been the normalization of torture within the United States - where torture has now been widely accepted as a useful, necessary and acceptable weapon to use against America's enemies - which I argue represents a crisis of legitimacy in the norm within that country. That such normative backsliding could occur in a country with a long history of constitutionalism and the rule of law suggests that the moral norms many take for granted may prove shallow and fleeting; norm regress will occur if these norms are not protected. In this regard, I offer a theoretical model to chart this normative regression, and in doing so make a contribution to the constructivist international relations literature which has hitherto concerned itself only with questions of normative progress at the expense of recognizing the potential for the decay of these internalized norms. I argue that while there remains a high level of acceptance worldwide that the norm against torture is right, any future incidences of torture by liberal states may well bring about a crisis of legitimacy in the international norm itself. This realization should encourage all who care about such norms to defend them against revisionism.
Bairdia urodeloformis Chen 1987
Creators: name: Chitnarin, Anisong
name: Crasquin, Sylvie
name: Forel, Marie-Béatrice
name: Tepnarong, Prachya
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Ostracoda
Podocopida
Bairdiidae
Bairdia
Bairdia urodeloformis

description: Bairdia urodeloformis Chen, 1987
(Fig. 9 G-J)
 Bairdia urodeloformis Chen in Shi & Chen, 1987: 40, pl. 4, figs 17- 23. — Crasquin et al. 2010a: 348, figs 7G-N.
 Rectobairdia firmata Chen in Chen & Shi, 1982: pl. 7, fig. 10 only.
 Bairdia macdonelli Harlton, 1929b: 157, pl. 3, figs 7a, b. — Shi & Chen 1987: 35, pl. 1, figs 1-7, pl. 18, figs 1-4;2002: 63, pl. 2, figs 1-4.
MATERIAL EXAMINED. — One incomplete and eight complete carapaces.
 OCCURRENCES. — Meishan section, Zhejiang Province, latest Permian (Shi & Chen 1987; Crasquin et al. 2010a); Matan and Pingding sections, Guangxi, South China, Late Permian (Shi & Chen 2002); sample 07 PB 04-2, Nong Phai section, Pha Nok Khao Formation, Phetchabun Province, central Thailand, Early Permian; samples 07LB05, 07LB05-A2, Ta Kli section, Tak Fa Formation, Nakhon Sawan province, Middle Permian, central Thailand; sample 07 PB 05-3, Ban Naen Sawan I section, Tak Fa Formation, Phetchabun Province, central Thailand, Middle Permian;.
DIMENSIONS. — H= 0.25-0.51 mm,L= 0.54-1.25 mm,H/L = 0.41-0.46.
REMARKS
 Such characters as long carapace, broadly arched dorsal outline of LV, angulated dorsal outline of RV with small AB located very high and small PB located very low induce the attribution to Bairdia urodeloformis Chen, 1987 described from the latest Permian of South China (Shi & Chen 1987).
 Bairdia cf. urodeloformis Chen, 1987 (Fig. 9 K-M)
 Bairdia urodeloformis Chen in Shi & Chen, 1987: 40, pl. 4, figs 17- 23.
MATERIAL EXAMINED. — 12 complete carapaces.
OCCURRENCES. — Sample 08LO02-2, Tham Nam Maholan section, Nam Maholan Formation, Loei Province, northeastern Thailand, Early Permian; samples 07LB05-A1, 07LB05-B2 and 07LB05-B3, Ta Kli section, Tak Fa Formation, Nakhon Sawan Province, Central Thailand, Middle Permian; sample 08LB01-1, Khao Som Phot section, Tak Fa Formation, Lopburi Province, central Thailand, Middle Permian.
DIMENSIONS. — H = 0.22-0.45 mm, L = 0.63-1.05 mm, H/L = 0.34-0.43.
REMARKS
 The specimens are related to Bairdia urodeloformis from the latest Permian of South China (see references above) by their long carapace, small AB with maximum of convexity located very high and small PB with maximum of convexity located very low. The differences are the longer carapace, the more convex PVB, and the overlap along dorsal border.
description: Published as part of Chitnarin, Anisong, Crasquin, Sylvie, Forel, Marie-Béatrice & Tepnarong, Prachya, 2017, Ostracods (Crustacea) of the Early-Middle Permian (Cisarulian-Guadalupian) from Central Thailand (Indochina Block): Part II, Orders Podocopida, Platycopida and Myodocopida, pp. 651-690 in Geodiversitas 39 (4) on pages 663-664, DOI: 10.5252/g2017n4a1, http://zenodo.org/record/4536112
Time constraints on the tectonic evolution of the Eastern Sierras Pampeanas (Central Argentina)
Creators: name: Siegesmund, Siegfried
name: Steenken, André
name: Martino, Roberto
name: Wemmer, Klaus
name: López De Luchi, Mónica
name: Frei, Robert
name: Presnyakov, Sergej
name: Guereschi, Alina
Publisher: name: Springer-Verlag
Year: 2009

description: The application of the SHRIMP U/Pb dating technique to zircon and monazite of different rock types of the Sierras de Córdoba provides an important insight into the metamorphic history of the basement domains. Additional constraints on the Pampean metamorphic episode were gained by Pb/Pb stepwise leaching (PbSL) experiments on two titanite and garnet separates. Results indicate that the metamorphic history recorded by Crd-free gneisses (M2) started in the latest Neoproterozoic/earliest Cambrian (553 and 543 Ma) followed by the M4 metamorphism at ~530 Ma that is documented in the diatexites. Zircon ages of 492 Ma in the San Carlos Massif correlate partly with rather low Th/U ratios (<0.1) suggesting their growth by metamorphic fluids. This age is even younger than the PbSL titanite ages of 506 Ma. It is suggested that the fluid alteration relates to the beginning of the Famatinien metamorphic cycle in the neighbouring Sierra de San Luis and has not affected the titanite ages. The PTt evolution can be correlated with the plate tectonic processes responsible for the formation of the Pampean orogene, i.e., the accretion of the Pampean basement to the Río de La Plata craton (M2) and the later collision of the Western Pampean basement with the Pampean basement.
Complete Set of Dimension-8 Operators in the Standard Model Effective Field Theory
Creators: name: Li, Hao-Lin
name: Ren, Zhe
name: Shu, Jing
name: Xiao, Ming-Lei
name: Yu, Jiang-Hao
name: Zheng, Yu-Hui
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a complete list of the dimension 8 operator basis in the standard model effective field theory using group theoretic techniques in a systematic and automated way. We adopt a new form of operators in terms of the irreducible representations of the Lorentz group, and identify the Lorentz structures as states in a $SU(N)$ group. In this way, redundancy from equations of motion is absent and that from integration-by-part is treated using the fact that the independent Lorentz basis forms an invariant subspace of the $SU(N)$ group. We also decompose operators into the ones with definite permutation symmetries among flavor indices to deal with subtlety from repeated fields. For the first time, we provide the explicit form of independent flavor-specified operators in a systematic way. Our algorithm can be easily applied to higher dimensional standard model effective field theory and other effective field theories, making these studies more approachable.
description: 72 pages, 1 figure, 4 tables, minor revision on monomial operators with desymmetrization procedure
Rural Education at a Glance, 2017 Edition
Creators: name: Marré, Alexander
name: Marré, Alexander
Publisher: name: Unknown
Year: 2017
Subjects: subject: Community/Rural/Urban Development
subject: Food Security and Poverty
subject: Labor and Human Capital
subject: Education
subject: Rural America
subject: poverty
subject: rural indicators
subject: rural development
subject: employment trends

description: This report highlights trends in educational attainment among rural Americans and the relationship between educational attainment and economic prosperity for rural people and places. Educational attainment is growing in rural America. However, gains in educational attainment vary across demographic groups. Low education in rural areas is closely related to high poverty and unemployment rates.
Protomylonite evolution potentially revealed by the 3D depiction and fractal analysis of chemical data from a feldspar
Creators: name: Słaby, Ewa
name: Domonik, Andrzej
name: Śmigielski, Michał
name: Majzner, Katarzyna
name: Motuza, Gediminas
name: Götze, Jens
name: Simon, Klaus
name: Moszumańska, Izabela
name: Kruszewski, Łukasz
name: Rydelek, Paweł
Publisher: name: FID GEO
Year: 2014

description: An alkali feldspar megacryst from a protomylonite has been studied using laser ablation-ICP-mass spectrometry combined with cathodoluminescence imaging, Raman spectroscopy, and electron probe microanalysis. The aim was to determine the original (magmatic) geochemical pattern of the crystal and the changes introduced by protomylonitization. Digital concentration-distribution models, derivative gradient models, and fractal statistics, e.g., Hurst-exponent values are used in a novel way to reveal subtle changes in the trace-element composition of the feldspar. Formation of the crystal is reflected in a slightly chaotic trace-element (Ba, Sr, and Rb) distribution pattern that is more or less characterized by continuous development from a fairly homogeneous environment. Derivative gradient models demonstrate a microdomain pattern. Fractal statistics show that element behavior was changeable, with Ba and Sr always more persistent (continuing) and Rb always less persistent, with the latter showing a tendency to migrate. The variations in the Hurst exponent are, however, too large to be explained by magmatic differentiation alone. The observed element behavior may be explained by structural changes revealed by Raman spectroscopy and CL. In high-strain domains, T–O–T modes become stronger for Si–O–Al than Al–O–Al linkages. Increasing amounts of Al–O−–Al defects are demonstrated by cathodoluminescence. Both may result from small-distance diffusion creep, making the crystal geochemical pattern slightly patchy. In turn, the marginal part of the megacryst has a mosaic of randomly orientated, newly crystallized K-feldspars. The re-growth is confirmed by trace-element distribution patterns and fractal statistics which identify an abrupt change in the transformation environment. The novel set of tools used in this study reveals a complicated history of megacryst formation and transformation that otherwise would be difficult to unravel and decipher.
Field-theoretic derivation of bubble-wall force
Creators: name: Mancha, Marc Barroso
name: Prokopec, Tomislav
name: Swiezewska, Bogumila
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive a general quantum field theoretic formula for the force acting on expanding bubbles of a first order phase transition in the early Universe setting. In the thermodynamic limit the force is proportional to the entropy increase across the bubble of active species that exert a force on the bubble interface. When local thermal equilibrium is attained, we find a strong friction force which grows as the Lorentz factor squared, such that the bubbles quickly reach stationary state and cannot run away. We also study an opposite case when scatterings are negligible across the wall (ballistic limit), finding that the force saturates for moderate Lorentz factors thus allowing for a runaway behavior. We apply our formalism to a massive real scalar field, the standard model and its simple portal extension. For completeness, we also present a derivation of the renormalized, one-loop, thermal energy-momentum tensor for the standard model and demonstrate its gauge independence.
description: 65 pages (33 pages main text + 32 pages appendix and references), 15 figures, v2: improved discussion, clarifications added, matches published version
Система заселения Поднестровья в древнерусское время (IX-XІІІ вв.).
Creators: name: Manigda, Olga
Publisher: name: figshare
Year: 2020
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology

description: Динаміка розвитку сільських поселень у регіоні Пруто-Дністровського межиріччя у період ХІ ст. нерозривно пов’язана з політичними подіями, а саме з включенням регіону до складу Київської держави. Картографування пам’яток з матеріалами ХІ ст. дозволило встановити, що кількість поселень та городищ стала значно меншою у порівнянні з попереднім часом. до цього періоду можуть бути віднесені лише 6 городищ, 2 могильники та близько 20 поселень. Спостерігаються також зміни у розташуванні пам’яток, зокрема, вони концентруються здебільшого на берегах рік Дністер та Прут і суттєво зменшується їх кількість у межиріччях, особливо у Пруто-Серетському. Як і у попередній час, неукріплені селища входили до структури гнізд-поселень. Період ХІІ-ХІІІ ст. для території межиріччя Прута та Дністра є показовим у плані масового зростання кількості неукріплених поселень. Картографування поселень цього часу показало, що вони розташовувалися невеликими групами на відстані 5-8 км одне від одного. В окремих місцях простежується їх більша зосередженість, однак, вони не тяжіють до городищ. Певною мірою це є свідченням значних змін у соціальній структурі населення даної території у ХІІ-ХІІІ ст. та складання феодальних відносин і прикріплення селян до землі. Це також є показником адміністративно керованого освоєння земель галицькими князями
Low-Income and Low-Supermarket-Access Census Tracts, 2010-2015
Creators: name: Rhone, Alana
name: Ver Ploeg, Michele
name: Dicken, Chris
name: Williams, Ryan
name: Breneman, Vince
name: Rhone, Alana
name: Ver Ploeg, Michele
name: Dicken, Chris
name: Williams, Ryan
name: Breneman, Vince
Publisher: name: Unknown
Year: 2017
Subjects: subject: Food Security and Poverty
subject: supermarkets
subject: low-income
subject: food access
subject: low-access
subject: food deserts
subject: healthy and affordable food

description: This report updates estimates of low-income and low-supermarket-access census tracts (as found in ERS’ Food Access Research Atlas) using a 2015 directory of supermarkets, 2010 Decennial Census data on population and subpopulation characteristics, and 2010-2014 American Community Survey data on household vehicle access and family income.
Combined BIMA and OVRO observations of comet C/1999 S4 (LINEAR)
Creators: name: Hogerheijde, M. R.
name: de Pater, I.
name: Wright, M.
name: Forster, J. R.
name: Snyder, L. E.
name: Remijan, A.
name: Woodney, L. M.
name: A'Hearn, M. F.
name: Palmer, P.
name: Kuan, Y. -J.
name: Huang, H. -C.
name: Blake, G. A.
name: Qi, C.
name: Kessler, J.
name: Liu, S. -Y.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from an observing campaign of the molecular content of the coma of comet C/1999 S4 (LINEAR) carried out jointly with the millimeter-arrays of the Berkeley-Illinois-Maryland Association (BIMA) and the Owens Valley Radio Observatory (OVRO). Using the BIMA array in autocorrelation (`single-dish') mode, we detected weak HCN J=1-0 emission from comet C/1999 S4 (LINEAR) at 14 +- 4 mK km/s averaged over the 143" beam. The three days over which emission was detected, 2000 July 21.9-24.2, immediately precede the reported full breakup of the nucleus of this comet. During this same period, we find an upper limit for HCN 1-0 of 144 mJy/beam km/s (203 mK km/s) in the 9"x12" synthesized beam of combined observations of BIMA and OVRO in cross-correlation (`imaging') mode. Together with reported values of HCN 1-0 emission in the 28" IRAM 30-meter beam, our data probe the spatial distribution of the HCN emission from radii of 1300 to 19,000 km. Using literature results of HCN excitation in cometary comae, we find that the relative line fluxes in the 12"x9", 28" and 143" beams are consistent with expectations for a nuclear source of HCN and expansion of the volatile gases and evaporating icy grains following a Haser model.
description: 18 pages, 3 figures. Uses aastex. AJ in press
Testing Primordial Black Holes as Dark Matter in Supergravity from Gravitational Waves
Creators: name: Aldabergenov, Yermek
name: Addazi, Andrea
name: Ketov, Sergei V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore the Gravitational Waves (GW) phenomenology of a simple class of supergravity models that can explain and unify inflation and Primordial Black Holes (PBH) as Dark Matter (DM). Our (modified) supergravity models naturally lead to a two-field attractor-type double inflation, whose first stage is driven by Starobinsky scalaron and the second stage is driven by another scalar belonging to a supergravity multiplet. The PBHs formation in our supergravity models is efficient, compatible with all observational constraints, and predicts a stochastic GW background. We compute the PBH-induced GW power spectrum and show that GW signals can be detected within the sensitivity curves of the future space-based GW interferometers such as LISA, DECIGO, TAIJI and TianQin projects, thus showing predictive power of supergravity in GW physics and their compatibility.
description: 6 pages, 1 table, 3 figures. Version 4: revised version accepted to Physics Letters B. Version 5: Fig. 3 updated, a reference added
The Río de la Plata Craton: a review of units, boundaries, ages and isotopic signature
Creators: name: Oyhantçabal, Pedro
name: Siegesmund, Siegfried
name: Wemmer, Klaus
Publisher: name: Springer-Verlag
Year: 2010

description: A review of the lithostratigraphic units in the Río de la Plata Craton and of new and previously published geochronological, isotopic and geophysical data is presented. Sm–Nd TDM model ages between 2.6 and 2.2 Ga characterize the Piedra Alta Terrane of this craton. Crystallization ages between 2.2 and 2.1 Ga for the metamorphic protoliths and 2.1–2.0 Ga for the post-orogenic granitoids indicate juvenile crust, followed by a short period of crustal recycling. Cratonization of this terrane occurred during the late Paleoproterozoic. Younger overprinting is not observed, suggesting it had a thick and strong lithosphere in the Neoproterozoic. A similar scenario is indicated for the Tandilia Belt of Argentina. Sm–Nd TDM model ages for the Nico Pérez Terrane show two main events of crustal growth (3.0–2.6 and 2.3–1.6 Ga). The crystallization ages on zircon ranges between 3.1 and 0.57 Ga, which is evidence for long-lived crustal reworking. The age for cratonization is still uncertain. In the Taquarembó Block, which is considered the prolongation of the Nico Pérez Terrane in southern Brazil, a similar scenario can be observed. These differences together with contrasting geophysical signatures support the redefinition of the Río de la Plata Craton comprising only the Piedra Alta Terrane and the Tandilia Belt. The Sarandí del Yí Shear Zone is regarded as the eastern margin of this Craton.
America's Diverse Family Farms, 2016 Edition
Creators: name: Hoppe, Robert A.
name: MacDonald, James M.
name: Hoppe, Robert A.
name: MacDonald, James M.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Farm Management
subject: family farms
subject: small farms
subject: retirement farms
subject: farm household income
subject: crop insurance
subject: government payments

description: Family farms comprise 99 percent of U.S. farms, accounting for 89 percent of production. Small farms make up 90 percent of farms, operating nearly half of farmland. Still, large family farms accounted for 42 percent of production in 2015.
Searching for lepton flavor violating decays tau to Pl in Minimal R-symmetric Supersymmetric Standard Model
Creators: name: Sun, Ke-Sheng
name: Guo, Tao
name: Li, Wei
name: Yang, Xiu-Yi
name: Zhao, Shu-Min
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the lepton flavor violating decays $τ\rightarrow Pl$ ($P=π,η,η';\;l=e,μ$) in the scenario of the minimal R-symmetric supersymmetric standard model. The prediction on the branching ratios BR$(τ\rightarrow P e)$ and BR$(τ\rightarrow P μ)$ is affected by the mass insertion parameters $δ^{13}$ and $δ^{23}$, respectively. These parameters are constrained by the experimental bounds on the branching ratios BR($τ\rightarrow e (μ) γ$) and BR($τ\rightarrow 3e(μ)$). The result shows $Z$ penguin dominates the prediction on BR($τ\rightarrow Pl$) in a large region of the parameter space. The branching ratios for BR($τ\rightarrow Pl$) are predicted to be, at least, five orders of magnitude smaller than present experimental bounds and three orders of magnitude smaller than future experimental sensitivities.
description: 19 pages, 9 figures. arXiv admin note: text overlap with arXiv:2004.12266
A Tractable Complex Network Model based on the Stochastic Mean-field Model of Distance
Creators: name: Aldous, David J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Much recent research activity has been devoted to empirical study and theoretical models of complex networks (random graphs) with three qualitative features: power-law degree distribution, local clustering of edges, and small diameter. We point out a new (in this context) platform for such models -- the stochastic mean-field model of distance -- and within this platform study a simple two-parameter proportional attachment model. The model is mathematicallly natural, permits a wide variety of explicit calculations, has the desired three qualitative features, and fits the complete range of degree scaling exponents and clustering parameters; in these respects it compares favorably to existing models.
description: 37 pages, 9 figures. Revised version correcting minor mistakes and adding some extra calculations
Формування поселень в середній течії р. Горинь.
Creators: name: Manigda, Olga
Publisher: name: figshare
Year: 2020
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology

description: Манігда, О. В. 2008. Формування поселень в середній течії р. Горинь. В: Івакін Г.Ю. (ред.) Стародавній Іскоростень і слов’янські гради, 2. Коростень, с. 14-19.

Загалом можна стверджувати, що протягом ІХ-Х, X, XI, ХІІ-ХІІІ ст. заселення південно-східної окраїни Погоринської волості відбувалося досить неоднорідно, з переважанням по-басейнової структури на окремих ділянках (р-н Тихомля, Ізяславля). Разом з тим, протягом Х-ХІІІ ст спостерігаються суттєві зміни у соціальній структурі заселення. З XI ст. починає формуватися державна сітка городищ, яка втягує населені пункти, що вже існували на цій території у свою орбіту а також формує власну інфраструктуру, як це, можливо, відбувалося із освоєнням округи Ізяславля. Для цієї невеличкої території ми не можемо говорити про суто селянське заселення, більшість поселень тяжіють до навколишніх городищ, що для порубіжної території є цілком виправданим чинником.
Bairdia calida Chen 1958
Creators: name: Chitnarin, Anisong
name: Crasquin, Sylvie
name: Forel, Marie-Béatrice
name: Tepnarong, Prachya
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Ostracoda
Podocopida
Bairdiidae
Bairdia
Bairdia calida

description: Bairdia cf. calida Chen, 1958
(Fig. 10A, B)
 Bairdia calida Chen, 1958: 243, pl. IV, figs 9-15.
MATERIAL EXAMINED. — One complete and two incomplete carapaces.
OCCURRENCES. — Sample 07 PB03-7, Khao Kana section, Pha Nok Khao Formation, Phetchabun province, Central Thailand, Early Permian; sample 07 PB05-3, Ban Naen Sawan I section, Pha Nok Khao Formation, Phetchabun province, Central Thailand, Middle Permian.
DIMENSIONS. — H = 0.715 -0.747 mm, L = 1.22-1.33 mm, H/L = 0.56-0.58.
REMARKS
 The specimens are close to Bairdia calida Chen, 1958 from the Early Permian of Jiangsu Province, Eastern China (Chen 1958) which is characterized by a narrow ventral ridge on RV and the dorsal ridge on LV. In our specimens, the ventral ridge on RV is observed; though, the dorsal ridge on LV is not recognized.
 Bairdia cf. zhongyingensis Wang, 1978 (Fig. 9D)
 Bairdia zhongyingensis Wang, 1978: 16, pl. III, fig. 2a-c.
MATERIAL EXAMINED. — One complete carapace.
OCCURRENCES. — Sample 07LB05-A2, Ta Kli section, Tak Fa Formation, Nakhon Sawan Province, central Thailand, Middle Permian.
DIMENSIONS. — H = 0.712 mm, L = 1.31 mm, H/L = 0.54.
REMARKS
 The specimen resembles Bairdia zhongyingensis Wang, 1978 from the Late Permian of South China (Wang 1978) in lateral outline, especially for the small radius of curvature of AB, small radius of curvature of PB and concave VB; however, radius of curvature of AB of our specimen is largerand higher and the overlap of LV on RV is not clear.
 Bairdia beedei Ulrich & Bassler, 1906 (Fig. 10C, D)
 Bairdia beedei Ulrich & Bassler, 1906: 161, pl. XI, figs 19, 20. — Chen 1958: 249, pl. 5, figs 1-4.
MATERIAL EXAMINED. — Five complete carapaces.
OCCURRENCES. — Kwanshan and Lungtan sections, Jiangsu Province, Early Permian (Chen 1958); samples 07 PB 03-1, 07 PB 03-7, Khao Kana section, Pha Nok Khao Formation, Phetchabun Province, Early Permian; sample 07 PB 04-2, Nong Phai section, Pha Nok Khao Formation, Phetchabun Province, Central Thailand, Early Permian.
DIMENSIONS. — H = 0.49-0.86 mm, L = 0.82-1.13 mm, H/L = 0.54-0.57.
REMARKS
 Our specimens have elongate, subfusiform carapace in lateral view with strong overlap of LV on RV at DB. DB of RV is steeply arched, DB of LV is straight and the VB is broadly convex. The carapaces of the studied specimens are longer than Bairdia beedei Ulrich & Bassler from Late Carboniferous of North America (Ulrich & Bassler 1906).
description: Published as part of Chitnarin, Anisong, Crasquin, Sylvie, Forel, Marie-Béatrice & Tepnarong, Prachya, 2017, Ostracods (Crustacea) of the Early-Middle Permian (Cisarulian-Guadalupian) from Central Thailand (Indochina Block): Part II, Orders Podocopida, Platycopida and Myodocopida, pp. 651-690 in Geodiversitas 39 (4) on page 664, DOI: 10.5252/g2017n4a1, http://zenodo.org/record/4536112
Microcracking in calcite and dolomite marble: microstructural influences and effects on properties
Creators: name: Shushakova, Victoria
name: Fuller, Edwin
name: Siegesmund, Siegfried
Publisher: name: Springer-Verlag
Year: 2012

description: Microstructure‐based finite-element analysis with a microcracking algorithm was used to simulate an actual degradation phenomenon of marble structures, i.e., microcracking. Both microcrack initiation and crack propagation were characterized, as were their dependence on lattice preferred orientation (LPO), grain shape preferred orientation (SPO), grain size, marble composition (calcite and dolomite) and grain‐boundary fracture toughness. Two LPOs were analyzed: a random orientation distribution function and an orientation distribution function with strong directional crystalline texture generated from a March–Dollase distribution. Three SPOs were considered: equiaxed grains; elongated grains and a mixture of equiaxed and elongated grains. Three different grain sizes were considered: fine grains of order 200 μm (only calcitic marble); medium size grains of order 1 mm (calcitic and dolomitic marbles); and large grains of order 2 mm (only dolomitic marble). The fracture surface energy for the grain boundaries, γig, was chosen to be 20 and 40 % of the fracture surface energy of a grain, γxtal, so that both intergranular and transgranular fracture were possible. Studies were performed on these idealized marble microstructures to elucidate the range of microcracking responses. Simulations were performed for both heating and cooling by 50 °C in steps of 1 °C. Microcracking results were correlated with the thermoelastic responses, which are indicators related to degradation. The results indicate that certain combinations of LPO, SPO, grain size, grain‐boundary fracture toughness and marble composition have a significant influence on the thermal-elastic response of marble. Microstructure with the smallest grain size and the highest degree of SPO and LPO had less of a tendency to microcrack. Additionally, with increasing SPO and LPO microcracking becomes more spatially anisotropic. A significant observation for all microstructures was an asymmetry in microcracking upon heating and cooling: more microcracking was observed upon cooling than upon heating. Given an identical microstructure and crystallographic texture, calcite showed larger thermal stresses than dolomite, had an earlier onset of microcracking upon heating and cooling, and a greater microcracked area at a given temperature differential. Thermal expansion coefficients with and without microcracking were also determined.
The Adoption of Genetically Engineered Alfalfa, Canola and Sugarbeets in the United States
Creators: name: Fernandez-Cornejo, Jorge
name: Wechsler, Seth J.
name: Milkove, Daniel
name: Fernandez-Cornejo, Jorge
name: Wechsler, Seth J.
name: Milkove, Daniel
Publisher: name: Unknown
Year: 2016
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Agricultural biotechnology
subject: FOS: Agricultural biotechnology
subject: genetically engineered crops
subject: herbicide tolerance
subject: alfalfa
subject: canola
subject: sugarbeets

description: This report uses data from USDA’s 2013 Agricultural Resource Management Survey (ARMS) to analyze the adoption of GE alfalfa, canola, and sugarbeets in the United States. It also discusses legal/regulatory issues associated with the commercialization of these crops, trends in adoption rates, and the economic impacts of adoption.
Carbon Ignition in Type Ia Supernovae: II. A Three-Dimensional Numerical Model
Creators: name: Kuhlen, M.
name: Woosley, S. E.
name: Glatzmaier, G. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The thermonuclear runaway that culminates in the explosion of a Chandrasekhar mass white dwarf as a Type Ia supernova begins centuries before the star actually explodes. Here, using a 3D anelastic code, we examine numerically the convective flow during the last minute of that runaway, a time that is crucial in determining just where and how often the supernova ignites. We find that the overall convective flow is dipolar, with the higher temperature fluctuations in an outbound flow preferentially on one side of the star. Taken at face value, this suggests an asymmetric ignition that may well persist in the geometry of the final explosion. However, we also find that even a moderate amount of rotation tends to fracture this dipole flow, making ignition over a broader region more likely. Though our calculations lack the resolution to study the flow at astrophysically relevant Rayleigh numbers, we also speculate that the observed dipolar flow will become less organized as the viscosity becomes very small. Motion within the dipole flow shows evidence of turbulence, suggesting that only geometrically large fluctuations (~1 km) will persist to ignite the runaway. We also examine the probability density function for the temperature fluctuations, finding evidence for a Gaussian, rather than exponential distribution, which suggests that ignition sparks may be strongly spatially clustered.
description: 16 pages, 9 figures, submitted to ApJ. A high resolution version of this paper, as well as movies, can be found at http://www.ucolick.org/~mqk/Carbon
Rural America at a Glance, 2016 Edition
Creators: name: Kusmin, Lorin
name: Kusmin, Lorin
Publisher: name: Unknown
Year: 2016
Subjects: subject: Community/Rural/Urban Development
subject: Food Security and Poverty
subject: Labor and Human Capital
subject: Rural indicators
subject: population
subject: employment
subject: rural unemployment
subject: labor force participation
subject: nonmetropolitan
subject: earnings
subject: income
subject: nonmetro
subject: rural economy
subject: metro
subject: rural America
subject: census data
subject: population growth
subject: poverty
subject: county typology
subject: recession

description: This report highlights the most recent indicators of social and economic conditions in rural areas, focusing on the U.S. rural economy, including employment, population, poverty, and income trends. Errata: On May 31, 2017, Rural America at a Glance, 2016 Edition was reposted to correct the classifications of some counties in the map.
Domain-wall profile in the presence of anisotropic exchange interactions: Effective on-site anisotropy
Creators: name: Rodriguez, A. O. Garcia
name: Ferrer, A. Villares
name: Caldeira, A. O.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Starting from a D-dimensional XXZ ferromagnetic Heisenberg model in an hypercubic lattice, it is demonstrated that the anisotropy in the exchange coupling constant leads to a D-dependent effective on-site anisotropy interaction often ignored for D>1. As a result the effective width of the wall depends on the dimensionality of the system. It is shown that the effective one-dimensional Hamiltonian is not the one-dimensional XXZ version as assumed in previous theoretical work. We derive a new expression for the wall profile that generalizes the standard Landau-Lifshitz form. Our results are found to be in very good agreement with earlier numerical work using the Monte Carlo method. Preceding theories concerning the domain wall contribution to magnetoresistance have considered the role of D only through the modification of the density of states in the electronic band structure. This Brief Report reveals that the wall profile itself contains an additional D dependence for the case of anisotropic exchange interactions.
description: 4 pages; new title and abstract; 1 figure comparing our results with earlier numerical work; a more general model containing the usual on-site anisotropy; new remarks and references on the following two topics: (a) experimental evidence for the existence of spin exchange anisotropy, and (b) preceding theories concerning the domain wall contribution to magnetoresistance; to appear in Phys. Rev. B
Adaptive Nonlinear Control of Fixed-Wing VTOL with Airflow Vector Sensing
Creators: name: Shi, Xichen
name: Spieler, Patrick
name: Tang, Ellande
name: Lupu, Elena-Sorina
name: Tokumaru, Phillip
name: Chung, Soon-Jo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Fixed-wing vertical take-off and landing (VTOL) aircraft pose a unique control challenge that stems from complex aerodynamic interactions between wings and rotors. Thus, accurate estimation of external forces is indispensable for achieving high performance flight. In this paper, we present a composite adaptive nonlinear tracking controller for a fixed-wing VTOL. The method employs online adaptation of linear force models, and generates accurate estimation for wing and rotor forces in real-time based on information from a three-dimensional airflow sensor. The controller is implemented on a custom-built fixed-wing VTOL, which shows improved velocity tracking and force prediction during the transition stage from hover to forward flight, compared to baseline flight controllers.
description: 7 pages, 7 figures, International Conference on Robotics and Automation (ICRA) 2020
Досвід топографічної зйомки на г. Лисуха. Обміри та аналіз сучасного стану пам'ятки. Реконструкція природного рельєфу
Creators: name: Manigda, Olga
Publisher: name: figshare
Year: 2020
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology

description: Манігда, О. В., Пробийголова, О. С., Очеретний С. В. 2018. Досвід топографічної зйомки на г. Лисуха. Обміри та аналіз сучасного стану пам'ятки. Реконструкція природного рельєфу. В: Болтрик, Ю.В. (ред.) Археологія і давня історія України, 1 (26). Київ: ІА НАНУ, с. 293-300

The paper is devoted to the topography of hillfort 1th—3th cent. located on Lysukha Mountain in basin of Dnipro river. Methods of mapping, measurements and current preservation condition of hillford are reviewed. Relief of Lysukha Mountain was badly damaged by construction of Kaniv’ reservoir. That’s was the reason for reconstruction the natural state of mountain relief made by authors. Also, several analyzes were done to determine the weight of topography for hillfort functioning as a settlement structure in old times.