cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On patterns and dynamics of Rule 22 cellular automaton
Creators: name: Martinez, Genaro J.
name: Adamatzky, Andrew
name: Hoffmann, Rolf
name: Deserable, Dominique
name: Zelinka, Ivan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Formal Languages and Automata Theory (cs.FL)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Chaotic Dynamics (nlin.CD)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Rule 22 elementary cellular automaton (ECA) has a 3--cell neighborhood, binary cell states, where a cell takes state `1' if there is exactly one neighbor, including the cell itself, in state `1'. In Boolean terms the cell-state transition is a XOR function of three cell states. In physico--chemical terms the rule might be seen as describing propagation of self-inhibiting quantities/species. Space-time dynamics of Rule 22 demonstrates non-trivial patterns and quasi-chaotic behavior. We characterize the phenomena observed in this rule using mean field theory, attractors, de Bruijn diagrams, subset diagrams, filters, fractals and memory.
description: 50 pages, 28 figures, 7 tables
Protecting Rural Amenities Through Farmland Preservation Programs
Creators: name: Nickerson, Cynthia J.
name: Hellerstein, Daniel
name: Nickerson, Cynthia J.
name: Hellerstein, Daniel
Publisher: name: Unknown
Year: 2003
Subjects: Land Economics/Use

description: We investigate what farmland preservation programs reveal about the importance of protecting different rural amenities. An extensive content analysis of the enabling legislation of various farmland protection programs suggests wide variation exists in the protection of amenities. An analysis of 27 individual Purchase of Development Rights (PDR) programs' selection criteria suggests these programs favor preserving amenities that are jointly provided by cropland and livestock operations. These PDR selection criteria also reveal unique preferences regarding the spatial patterns of preserved agricultural lands. Variation in relative weights given to protecting most parcel characteristics in PDR programs is not easily explained by factors that characterize areas experiencing farmland losses.
Anexo - Sinergia entre Analítica del Aprendizaje y Diseños del Aprendizaje. Estudio de Mapeo Sistemático.
Creators: name: Panizzi, Marisa Daniela
name: Sattolo, Iris Inés
Publisher: name: figshare
Year: 2020
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Anexo - Sinergia entre Analítica del Aprendizaje y Diseños del Aprendizaje. Estudio de Mapeo Sistemático.
Ep-Eiso Correlation in a Multiple Subjet Model of Gamma-Ray Bursts
Creators: name: Toma, Kenji
name: Yamazaki, Ryo
name: Nakamura, Takashi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We perform Monte Carlo simulations to study Ep-Eiso correlation in the context of a multiple subjet model (or inhomogeneous jet model) for gamma-ray bursts (GRBs), X-ray--rich GRBs (XRRs), and X-ray flashes (XRFs). For a single subjet, we find that Ep prop. Eiso^0.4 for large viewing angles. For the multiple subjet model in which all the subjets have the same intrinsic properties, off-axis events show Ep prop. Eiso^a with 0.4
description: 9 pages, 7 figures; accepted for publication in ApJ
Is There Evidence of a Critical Mass in the Mid-Atlantic Agriculture Sector Between 1949 and 1997?
Creators: name: Lynch, Lori
name: Carpenter, Janet
name: Lynch, Lori
name: Carpenter, Janet
Publisher: name: Unknown
Year: 2003
Subjects: Agribusiness

description: Ongoing farmland loss has led county planners to ask "is there a critical mass of farmland needed?" to retain a viable agricultural sector. This study examines whether counties lost farmland at a faster rate if the number of agricultural acres fell below a critical threshold. Results from six Mid-Atlantic states over the period 1949 to 1997 indicate that counties with fewer agricultural acres lost farmland at a faster rate. However, after splitting the study period into two time segments (1949-1978 and 1978-1997) and modeling separately, this result was not found for the later time period, suggesting a uniform critical mass level may not exist. Population growth in a county accelerated farmland loss over all time periods.
Renormalization of the Vector Current in QED
Creators: name: Collins, John C.
name: Manohar, Aneesh V.
name: Wise, Mark B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is commonly asserted that the electromagnetic current is conserved and therefore is not renormalized. Within QED we show (a) that this statement is false, (b) how to obtain the renormalization of the current to all orders of perturbation theory, and (c) how to correctly define an electron number operator. The current mixes with the four-divergence of the electromagnetic field-strength tensor. The true electron number operator is the integral of the time component of the electron number density, but only when the current differs from the MSbar-renormalized current by a definite finite renormalization. This happens in such a way that Gauss's law holds: the charge operator is the surface integral of the electric field at infinity. The theorem extends naturally to any gauge theory.
description: 9 pages. Corresponds to published version (Phys. Rev. D), including appendix about Weeks's paradox
Vortices and quasiparticles near the "superconductor-insulator" transition in thin films
Creators: name: Galitski, Victor
name: Refael, G.
name: Fisher, Matthew P. A.
name: Senthil, T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the low temperature behavior of an amorphous superconducting film driven normal by a perpendicular magnetic field (B). For this purpose we introduce a new two-fluid formulation consisting of fermionized field induced vortices and electrically neutralized Bogoliubov quasiparticles (spinons) interacting via a long-ranged statistical interaction. This approach allows us to access a novel non-Fermi liquid phase which naturally interpolates between the low B superconductor and the high B normal metal. We discuss the transport, thermodynamic, and tunneling properties of the resulting "vortex metal" phase.
description: 4 pages, 1 figure, references added
Liposomal encapsulation of irinotecan and potential for the use of liposomal drug in the treatment of liver metastases associated with advanced colorectal cancer
Creators: name: Messerer, Corrie Lynn
Publisher: name: University of British Columbia
Year: 2009

description: Colorectal cancer is the second leading cause of cancer mortality in North America, primarily because of a high incidence of hepatic metastases, which are relatively unresponsive to the systemic chemotherapy. Irinotecan, a camptothecin analogue recently approved for used in conjunction with 5-fluorouricil/leucovorin, is a marginal improvement but toxic and by no means curative. Liposomal drug formulations are argued to be more effective at treating liver-localised carcinomas when compared with their free drug counterparts, because of their intrinsic affinity for the liver and extended lifespan. This work examined the suitability o f a liposomal irinotecan formulation in the treatment of colorectal liver metastases. Irinotecan was encapsulated in DSPC/cholesterol liposomes using an ionophore-generated transmembrane proton gradient. After i.v. injection, liposomal drug was eliminated from the plasma much more slowly than free drag, and after 1 h circulating levels of liposome-associated drug were 10 fold greater. In addition, high-performance liquid chromography analysis of plasma samples revealed that liposome-associated irinotecan is protected from inactivating hydrolysis with > 80 % remaining in the active lactone form up to 24 h after administration. These improved pharmacokinetics observed for the liposomal drug were associated with increased efficacy in both solid tumour and orthotopic human models of colorectal metastases. Using a model (LS180) of colorectal metastases in SCID/RAG2M mice it was demonstrated that liposome-encapsulated drug was more effective at arresting tumour growth than was free drug. Further, in the human model of colorectal liver metastases (LS174T), liposomal irinotecan substantially increase life span relative to free drug with all members surviving long-term (75 days) as compared to a survival time of 30 and 50 days for the control and free drug treated groups. These results illustrate that liposomal encapsulation can substantially enhance the therapeutic activity of irinotecan, and emphasize the potential for liposomal irinotecan in the treatment of liver metastases.
Resonances and final state interactions in the reaction pp->pK^+Lambda
Creators: name: Sibirtsev, A.
name: Haidenbauer, J.
name: Hammer, H. -W.
name: Krewald, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A study of the strangeness production reaction pp->pK^+Lambda for excess energies of epsilon \le 150 MeV, accessible at high-luminosity accelerator facilities like COSY, is presented. Methods to analyze the Dalitz plot distribution and angular spectra in the Jackson and helicity frames are worked out and suitable observables for extracting information on low lying resonances that couple to the K-Lambda system and for determining the Lambda-p effective-range parameters from the final state interaction are identified and discussed. Furthermore, the chances for identifying the reaction mechanism of strangeness production are investigated.
description: 16 pages, 16 figures
Cation interstitial diffusion in lead telluride and cadmium telluride studied by means of neural network potential based molecular dynamics simulations
Creators: name: Mińkowski, Marcin
name: Hummer, Kerstin
name: Dellago, Christoph
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using a recently developed approach to represent ab initio based force fields by a neural network potential, we perform molecular dynamics simulations of lead telluride (PbTe) and cadmium telluride (CdTe) crystals. In particular, we study the diffusion of a single cation interstitial in these two systems. Our simulations indicate that the interstitials migrate via two distinct mechanisms: through hops between interstitial sites and through exchanges with lattice atoms. We extract activation energies for both of these mechanisms and show how the temperature dependence of the total diffusion coefficient deviates from Arrhenius behaviour. The accuracy of the neural network approach is estimated by comparing the results for three different independently trained potentials.
Land Use Policy as Volitional Pragmatism
Creators: name: Bromley, Daniel W.
name: Bromley, Daniel W.
Publisher: name: Unknown
Year: 2003
Subjects: Land Economics/Use

description: Land-use conflicts highlight several myths about property rights. The central myth is that property rights are linked to natural rights, that property rights are durable and unchanging, and that any interference with these property rights requires public compensation. However, particular settings and circumstances lead to conflicting rights claims which the courts must sort through to determine where the more compelling rights claim resides. Situations are not protected because they have property rights. Rather, those situations found worthy of protection by the courts acquire the status of a property right. Property rights are not discovered, but are created by the courts. Applied economists must build models of property rights conflicts predicated upon an epistemology of volitional pragmatism.
title: Addressing the Great Salt Lake Desiccation: Exploring Support for Alternative Frameworks on Rights of Nature and Multispecies Justice
Creators: name: Braddock, Sadie
Publisher: name: Utah State University
Year: 2024

description:
Currently, there is a lack of social science research on the Great Salt Lake – a shrinking lake that faces potential ecological collapse as more water is taken upstream for human uses before it can get to the lake. The drying lake has received national attention, as it will lead to a loss of wildlife habitat, contribute to public health concerns, and impact Utah’s economy. In response to this issue, environmental scientists and activists have pressured policymakers to prioritize actions to conserve water for the lake. However, while polices have been implemented, water saved from these efforts are not guaranteed to make it to the lake. Further, lake advocates stress that such efforts are not enough to meet the urgency of this issue. Therefore, this study explores Utahns’ support for alternative solutions to address the drying of the Great Salt Lake such as rights of nature and multispecies justice approaches. Rights of nature is an earth-based social movement and legal strategy recognizing nature as an entity deserving of rights, while multispecies justice is a holistic framework examining how harmful structures in society contribute impact humans, animals, and all other types of species. If applied to the Great Salt Lake, these approaches could pave the way to grant the lake its own water rights to ensure water does get to the like while also taking into consideration what is helpful for humans and all other species that depend on the lake. Using logistic regression analysis, this study utilizes data from a statewide survey conducted by researchers at Utah State University called the Utah People and Environment Poll, which was designed to track Utahns’ views on environmental issues of importance in the state. Key findings include that nearly 29% of Utahns strongly support a rights of nature approach and over 37% strongly support a multispecies justice approach as solutions to save the Great Salt Lake. These results will help inform Utah policymakers, stakeholders, nonprofit and other advocacy groups to foster collaborative strategies best for promoting a viable and just management of the Great Salt Lake.
The nonsingular brane solutions via the Darboux transformation
Creators: name: Yurov, A. V.
name: Yurov, V. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the Darboux transformation as a method of construction of exact nonsingular solutions describing the three-dimensional brane that interacts with five-dimensional gravity and the bulk scalar field. To make it work, the five-dimensional Einstein's equations and the Israel's conditions are being reduced to the Schrödinger equation with the jump-like potential and the wave functions sewing conditions in jump point correspondingly. We show further that it is always possible to choose the functions in Crum's determinants in such way, that the five-dimensional Ricci scalar $R$ will always be finite both on brane and in bulk. The new exact solutions being the generalizations of the model with the odd superpotential are presented. Described formalism is also appliable to the cases of more realistic branes with cosmological expansion. As an example, via the usage of the simple orbifold model ($S_1/{\Bbb Z}_2$) and one-time Darboux transformation we construct the models where the cosmological constant on the visible brane is exponentially small.
description: 13 pages, 4 figures, RevTex, submitted to Phys.Rev. D
An absorbed view of a new class of INTEGRAL sources
Creators: name: Kuulkers, Erik
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The European gamma-ray observatory INTEGRAL has found a group of hard X-ray sources which are highly absorbed, i.e., with column densities higher than about 10^{23}/cm^2. Here I give an overview of this class of INTEGRAL sources. The X-ray, as well as the optical/IR, properties of these sources and their location in the sky suggest that they belong to the class of high-mass X-ray binaries, some of them possibly long-period X-ray pulsars. The donors in these binaries are most probably giant or supergiant stars. I suggest that the soft X-ray spectrum below ~5 keV of IGR J16318-4848, as well as in several other X-ray binaries (e.g., XTE J0421+56), can be described by emission from a compact object which is strongly absorbed by a partionally ionised dense envelope.
description: 8 pages, 2 figures, in "Interacting Binaries: Accretion, Evolution and Outcomes", Eds. L.A. Antonelli, et al., Proc. of the Interacting Binaries Meeting of Cefalu, Italy, July 2004, AIP, in press
Maryvillia triangularis
Creators: name: Westrop, Madison Armstrong Stephen R.
name: Eoff, Jennifer D.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Trilobita
Ptychopariida
Kingstoniidae
Maryvillia
Maryvillia triangularis

description: Maryvillia triangularis (Lochman, in Lochman & Duncan, 1944)
Plates 24, 25
 1944 Blountina triangularis Lochman, in Lochman & Duncan, p. 57, pl. 8, figs 12–18.
 1956 Blountina triangularis Lochman; Rasetti, p. 1268 [included in list of species that Rasetti considered to be synonyms of Maryvillia arion Walcott].
 Diagnosis. Anterior border narrows abaxially with well-incised border furrow; steeply sloping preglabellar field. Moderately convex glabella that narrows (tr.) anteriorly to a broadly rounded front, and very shallow axial furrows. Posterolateral projections long and triangular, with posteriorly deflected margins. Pygidium subtriangular in outline with faint border, axial, and pleural furrows that all weaken posteriorly. Pitting (corresponding to small projections on underside of exoskeleton) preserved on internal mould.
 Material. Figured specimens include the holotype cranidium (USNM 127159, Pl. 16, figs 6–8), four paratype cranidia (USNM 127161, Pl. 24, figs 1–3; USNM 127161, Pl. 24, fig. 4; USNM 127161, Pl. 24, fig. 5; USNM 127161, Pl. 24, figs 6–8), and four paratype pygidia (USNM 127160 c, Pl. 25, fig.. 9; USNM 127160 d, Pl. 25, figs 1–3; USNM 127161, Pl. 25, figs 4, 5; USNM 127161, Pl. 24, figs 9, 10) from the Pilgrim Formation, Half Moon Pass section (Lochman & Duncan 1944), Big Snowy Mountains, Montana.
 Occurrence. Crepicephalus Zone, Pilgrim Formation, Half Moon Pass section, Lochman and Duncan’s (1944) horizon 9.2, Big Snowy Mountains, Montana.
 Discussion. Blountia nasuta (Pl. 12, figs 1–6) resembles Maryvillia triangularis by having a roughly triangular anterior cranidial margin, and a pygidium is also triangular in outline (Pl. 12, figs 7–12). However, B. nasuta differs in having a longer frontal area (accounting for 37% cranidial length, versus 28% in M. triangularis) with a longer preglabellar field (occupying 46% of frontal area, versus 30%), and a flat, rather than concave border. The facial sutures of B. nasuta diverge forward from the palpebral lobes, whereas the anterior branches of M. triangularis are nearly parallel. The pygidium of B. nasuta is noticeably flatter (e.g., compare Pl. 12, figs 7. 9, 12 and Pl. 25, figs 2, 3, 5), with a shorter axis and longer (sag.) border.
description: Published as part of Westrop, Madison Armstrong Stephen R. & Eoff, Jennifer D., 2020, Systematics of a survivor: the Cambrian kingstoniid trilobite Blountia Walcott, 1916 across the Marjuman-Steptoean (Guzhangian-Paibian) extinction interval in Laurentian North America, pp. 1-79 in Zootaxa 4804 (1) on page 23, DOI: 10.11646/zootaxa.4804.1.1, http://zenodo.org/record/3927094
A comparison of kinship family survival in York and Swaledale in the nineteenth century
Creators: name: Batman, Philip A.
Publisher: name: University of Leicester
Year: 2020
Subjects: Uncategorized

description: Kinship networks were fundamental in importance to family life in both the urban and rural settings in nineteenth-century England. They could also be crucial in facilitating the process of migration. This thesis explores the ways in which kinship families over the nineteenth century responded to the stimulus to migrate. Kinship families are defined as several households in a community headed by people with the same surname who were related by lineage or marriage. Groups of people are quantified by a simple numerical index (surname index), then tracked across historical time using decennial census data, baptismal parish registers and memorial inscriptions. The surname index is an innovative powerful demographic tool for analysing, measuring and comparing sectors of the population within and between different communities and across time. People induced to migrate could follow the path of others who had gone before. The index in this study has been used to apply a measure to such chain migration of people with the same surname moving into York and out of Swaledale in the Northern Pennines.Migrant families came into York from mid-century to work on the railways or in flight from Ireland at the time of the Irish potato famine, and out of rural Swaledale during collapse of the lead-mining industry. Marked rural-urban differences are found in these migrations. Railway kinship families formed a new community which grew for the remainder of the century. Irish families arrived en masse and concentrated in an impoverished slum district of York. Relatives often chose to live in close proximity. Holding of land was key to survival for Swaledale families. Predominantly large kinship families migrated out of Swaledale to other mining areas including North America.The thesis furthers the debate about migration and kinship by showing that the impetus to migrate could affect kinship families in different ways from non-kinship families, and that complementary quantifiable chain migrations of related kin gathered pace into an urban and out of a rural setting during the nineteenth century.
The Dwarf Planet Makemake as seen by X-Shooter
Creators: name: Alvarez-Candal, A.
name: Souza-Feliciano, A. C.
name: Martins-Filho, W.
name: Pinilla-Alonso, N.
name: Ortiz, J. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Makemake is one of the brightest known trans-Neptunian objects, as such, it has been widely observed. Nevertheless, its visible to near-infrared spectrum has not been completely observed in medium resolving power, aimed at studying in detail the absorption features of CH$_4$ ice. In this paper we present the spectrum of Makemake observed with X-Shooter at the Very Large Telescope (Chile). We analyse the detected features, measuring their location and depth. Furthermore, we compare Makemake's spectrum with that of Eris, obtained with the same instrument and similar setup, to conclude that the bands of the CH$_4$ ice in both objects show similar shifts.
description: 8 pages, 10 figures, accepted in MNRAS
Diffraction at Tevatron and LHC in the Miettinen-Pumplin model
Creators: name: Sapeta, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The process of soft diffractive dissociation in hadronic collisions is discussed in the framework of the Miettinen-Pumplin model. A good description of the data in the ISR-Tevatron energy range is found. Predictions for the total, elastic and single diffractive cross sections for the LHC are also presented. The total cross section is expected to be 15% smaller than that given by Donnachie and Landshoff in the model with soft pomeron. The diffractive cross section remains constant in the Tevatron-LHC energy range.
description: 6 pages, 3 figures; Talk presented at the XLV Cracow School of Theoretical Physics, Zakopane, Poland, June 3-12, 2005
A Socio-Legal Study of Divorce in Malta
Creators: name: Mangion, Ann Marie
Publisher: name: University of Leicester
Year: 2020
Subjects: Uncategorized

description: Maltese divorce legislation was enacted in October 2011 after a divorce referendum. The divorce referendum question was not a simple yes or no question. The referendum question asked the voters whether they agreed for divorce to be introduced in Malta on four conditions, three of which were made into law. These conditions were the following: 1) four years of separation; 2) no hope for reconciliation, and finally 3) that maintenance is being paid. On 28 May 2011, the majority of the voters voted for divorce to be introduced in Malta and in October 2011 the referendum conditions were made law.The purpose of this socio-legal thesis was to determine the experience of the legislative introduction of divorce on women. To this end a mixed-methods empirical qualitative approach using focus groups and one-on-one interviews were used. A feminist legal theoretical framework was adopted, focusing on maternal feminism as the theory most relatable to the participants which was done by employing thematic analysis and a grounded theoretical approach. The data was thematically analysed, with three significant themes emerging: Control, Power and Gender Discrimination.It emerged that the participants due to their belief in gender stereotypes, which reflect maternal feminism, believe that the divorce legislation is a good divorce legislation. They believe that the purpose of divorce legislation is not to grant a divorce, but rather, to reconcile and save marriages. Participants also expressed the wish to have more control exercised on the family to keep the spouses from divorcing.The divorce legislation resulted in two contrasting experiences: a negative and a positive one. These effects were the result of the cultural background of the participants.
Pterygosoma mutabilis Jack 1961
Creators: name: Fajfer, Monika
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Pterygosomatidae
Pterygosoma
Pterygosoma mutabilis

description: Group: mutabilis
 Diagnosis. Palps not more than 4 times longer than wide. Antero-lateral setae numerous (80–120 pairs). Setae dm1 tapered. Setae dm3 absent. All peripheral setae flattened and fine-pointed, and arranged in two rows: dorsal and terminal. Dorsal row with 4 setae: 2 near lateral parts of idiosoma, 1 near genital region and 1 between these. Three pairs of genital setae g1–g3 and 4–9 pairs of tapered pseudanal setae ps present.
 Included species. Pterygosoma mutabilis Jack, 1961 and P. pallidum Fajfer, Melnikov and Dabert, 2016.
 Distribution. These species are found in the northern parts of the Arabian Peninsula and Africa.
 Host range. This group is exclusively associated with agamid lizards of the genus Trapelus (Agamidae).
description: Published as part of Fajfer, Monika, 2020, A systematic revision of the scale mite genus Pterygosoma Peters, 1849 (Acariformes: Pterygosomatidae), pp. 1-147 in Zootaxa 4805 (1) on page 8, DOI: 10.11646/zootaxa.4805.1.1, http://zenodo.org/record/3927100
On the Chemical Abundance of HR 8799 and the Planet c
Creators: name: Wang, Ji
name: Wang, Jason
name: Ma, Bo
name: Chilcote, Jeffrey
name: Ertel, Steve
name: Guyon, Olivier
name: Ilyin, Ilya
name: Jovanovic, Nemanja
name: Kalas, Paul
name: Lozi, Julien
name: Macintosh, Bruce
name: Stone, Jordan
name: Strassmeier, Klaus G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Comparing chemical abundances of a planet and the host star reveals the origin and formation path. Stellar abundance is measured with high-resolution spectroscopy. Planet abundance, on the other hand, is usually inferred from low-resolution data. For directly imaged exoplanets, the data are available from a slew of high-contrast imaging/spectroscopy instruments. Here, we study the chemical abundance of HR 8799 and its planet c. We measure stellar abundance using LBT/PEPSI (R=120,000) and archival HARPS data: stellar [C/H], [O/H], and C/O are 0.11$\pm$0.12, 0.12$\pm$0.14, and 0.54$^{+0.12}_{-0.09}$, all consistent with solar values. We conduct atmospheric retrieval using newly obtained Subaru/CHARIS data together with archival Gemini/GPI and Keck/OSIRIS data. We model the planet spectrum with petitRADTRANS and conduct retrieval using PyMultiNest. Retrieved planetary abundance can vary by $\sim$0.5 dex, from sub-stellar to stellar C and O abundances. The variation depends on whether strong priors are chosen to ensure a reasonable planet mass. Moreover, comparison with previous works also reveals inconsistency in abundance measurements. We discuss potential issues that can cause the inconsistency, e.g., systematics in individual data sets and different assumptions in the physics and chemistry in retrieval. We conclude that no robust retrieval can be obtained unless the issues are fully resolved.
description: Published on AJ
Probing supernova shock waves and neutrino flavor transitions in next-generation water-Cherenkov detectors
Creators: name: Fogli, G. L.
name: Lisi, E.
name: Mirizzi, A.
name: Montanino, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Several current projects aim at building a large water-Cherenkov detector, with a fiducial volume about 20 times larger than in the current Super-Kamiokande experiment. These projects include the Underground nucleon decay and Neutrino Observatory (UNO) in the Henderson Mine (Colorado), the Hyper-Kamiokande (HK) detector in the Tochibora Mine (Japan), and the MEgaton class PHYSics (MEMPHYS) detector in the Frejus site (Europe). We study the physics potential of a reference next-generation detector (0.4 Mton of fiducial mass) in providing information on supernova neutrino flavor transitions with unprecedented statistics. After discussing the ingredients of our calculations, we compute neutrino event rates from inverse beta decay ($\barν_e p\to e^+ n $), elastic scattering on electrons, and scattering on oxygen, with emphasis on their time spectra, which may encode combined information on neutrino oscillation parameters and on supernova forward (and possibly reverse) shock waves. In particular, we show that an appropriate ratio of low-to-high energy events can faithfully monitor the time evolution of the neutrino crossing probability along the shock-wave profile. We also discuss some background issues related to the detection of supernova relic neutrinos, with and without the addition of gadolinium.
description: Revised version (27 pages, 13 eps figures), to appear in JCAP. Includes revised numerical estimates and figures. In particular: calculations of inverse beta decay event rates improved by using the differential cross section by Vissani and Strumia (astro-ph/0302055); supernova relic neutrino flux calculations updated by using recent GALEX Mission data (astro-ph/0411424) on the star formation rate (SFR). References added. Conclusions unchanged
Magnetism and anomalous transport in the Weyl semimetal PrAlGe: Possible route to axial gauge fields
Creators: name: Destraz, D.
name: Das, L.
name: Tsirkin, S. S.
name: Xu, Y.
name: Neupert, T.
name: Chang, J.
name: Schilling, A.
name: Grushin, A. G.
name: Kohlbrecher, J.
name: Keller, L.
name: Puphal, P.
name: Pomjakushina, E.
name: White, J. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In magnetic Weyl semimetals, where magnetism breaks time-reversal symmetry, large magnetically sensitive anomalous transport responses are anticipated that could be useful for topological spintronics. The identification of new magnetic Weyl semimetals is therefore in high demand, particularly since in these systems Weyl node configurations may be easily modified using magnetic fields. Here we explore experimentally the magnetic semimetal PrAlGe, and unveil a direct correspondence between easy-axis Pr ferromagnetism and anomalous Hall and Nernst effects. With sizes of both the anomalous Hall conductivity and Nernst effect in good quantitative agreement with first principles calculations, we identify PrAlGe as a system where magnetic fields can connect directly to Weyl nodes via the Pr magnetization. Furthermore, we find the predominantly easy-axis ferromagnetic ground state co-exists with a low density of nanoscale textured magnetic domain walls. We describe how such nanoscale magnetic textures could serve as a local platform for tunable axial gauge fields of Weyl fermions.
description: 42 pages, 5 figures
Strategic Alignment in Program Management: A Framework for Sustainable Business Transformation
Creators: name: Adolfo M., Carreno
Publisher: name: Institute for Change Leadership and Business Transformation
Year: 2024

description: This paper explores the critical role of strategic alignment in program management as a driver of successful business transformation and long-term sustainability. In the current business environment, aligning program initiatives with overarching organizational goals optimizes resources, streamlines communication, and ensures that transformation efforts directly contribute to strategic objectives. Key drivers of strategic alignment, such as goal congruence, resource allocation, and risk management, are examined to highlight their role in fostering organizational cohesion and adaptability. The paper also addresses the challenges of achieving alignment, including organizational silos, cultural resistance, and the tension between short-term demands and long-term goals. To overcome these obstacles, recommendations include developing clear strategic objectives, implementing continuous monitoring and feedback mechanisms, and fostering leadership development and cultural change initiatives. Practical implications for business leaders and program managers are provided, offering actionable insights to enhance alignment within their organizations. Future research opportunities are suggested, focusing on the evolving nature of alignment in increasingly complex business environments, with an emphasis on emerging technologies and agile strategies. Ultimately, this paper underscores the importance of strategic alignment as a foundation for sustainable transformation and competitive advantage in program management.
Evaluation of the potential environmental impacts of condom production in Thailand
Creators: name: Jawjit, Warit
name: Pavasant, Prasert
name: Kroeze, Carolien
name: Tuffrey, Jindee
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: This study aims to analyse the potential environmental impact of natural rubber (NR) condoms over its entire life cycle. The environmental performance of the production process of NR condoms is also compared to that of synthetic polyisoprene (PI) condoms. Options to reduce the environmental impact of condom production are proposed and evaluated. The potential environmental impacts are quantified by life cycle assessment (LCA). The study takes a cradle-to-grave approach, and considers six phases: 1) fresh latex production, 2) concentrated latex production, 3) condom production, 4) condom use, 5) condom transportation, and 6) condom disposal. The comparative analysis of NR and PI condom production takes a gate-to-gate scope. The functional unit is one gross condom. The results indicate that the condom production phase has the largest share (34–73%) in the environmental impact during the life cycle of NR condoms, followed by the disposal phase (20–60%). Comparing the production of NR and PI condoms reveals that the production of PI condoms results in a 1.5–2.5 times higher environmental impacts than the NR condom production, due to higher electricity consumption, especially for the compounding, dipping, and leaching processes. Reduction of electricity use is a key measure to reduce the environmental impact. Combining natural gas with electricity for the dipping process is a promising option to reduce the electricity use; it results in ~10–17% reduction in environmental impacts.
Zoning, Development Timing, and Agricultural Land Use at the Suburban Fringe: A Competing Risks Approach
Creators: name: Hite, Diane
name: Sohngen, Brent
name: Templeton, Josh
name: Hite, Diane
name: Sohngen, Brent
name: Templeton, Josh
Publisher: name: Unknown
Year: 2003
Subjects: Land Economics/Use

description: Competing risks survival analysis is used to investigate tax and zoning policy impacts on residential, commercial, and industrial development timing in a rapidly growing Midwestern county. Industrial development appears both to precede and occur concurrently with residential development, while commercial development follows other types. Although residences appear to locate away from industrial land, zoning decisions favoring industry may attract rather than deter residential development within a jurisdiction. Regions with higher infrastructure taxes experience development later. Because school taxes fund local public goods important to homeowners, they have little influence on residential timing, but strong influences on industrial and commercial timing.
‘Betwixt and Between’: Exploring Invisibility and Narrating Mixed-Race Identity in UK Museums
Creators: name: Terry, Naomi E.
Publisher: name: University of Leicester
Year: 2020
Subjects: Uncategorized

description: This research aims to explore the relative absence of mixed-race narratives in UK museums. Museums have a long and contested relationship with race, still often informed by historical notions of difference, ‘other-ness’ and othering. Attempts to diversify staff, and programmes aimed at building bridges between the museum (as powerful) and the marginalised (as powerless) help in acknowledging and redressing this history. Although the UK’s mixed-race population is the fastest-growing ethnic minority group, mixed-ness remains largely unexplored within UK museums. Museological discussion regarding race and social justice have yet to fully embrace mixed-race identities. The museum tends to construct and present race as binary, eclipsing complex racial identities that reject such essentialism. Using mixedrace theory, this research explores the places where mixed-ness is found in the UK museum; curatorial power in creating or suppressing its visibility and its voice; language; visual culture; the fragility of personal recollection. It considers silences in this narrative - how and why these might be actively curated by the museum. It attempts to highlight the ways in which mixed-race invisibility in the museum is reflective of wider museological issues with representation. To do this, it considers mixed-race (in)visibility in the museum within the context of mixed-race social history. The research concludes by reviewing its initial research questions, asking whether mixed-ness can be narrated at all. Mixed-ness is fluid because as a lived experience it is historical and contemporary. Stereotyped as beyond social order, it defies classification. Mixed-ness cannot be computed within inflexible systems of collecting, displaying and curating. This research ends by arguing that museums should use mixed-ness to deconstruct their approaches to representation and visibility. In light of the relative lack of mixed-race museum research, any and all mixed-race research writes an ongoing legacy for future mixed-race research.
Conservation Contracting in Heterogeneous Landscapes: An Application to Watershed Protection and Threshold Constraints
Creators: name: Ferraro, Paul J.
name: Ferraro, Paul J.
Publisher: name: Unknown
Year: 2003
Subjects: Resource /Energy Economics and Policy

description: A key issue in the design of land use policy is how to integrate information about spatially variable biophysical and economic conditions into a cost-effective conservation plan. Using common biophysical scoring methods, in combination with economic data and simple optimization methods, an illustration is provided for how to identify a set of priority land parcels for conservation investment. This study also demonstrates a way in which conservation agencies can incorporate concerns about biophysical thresholds in the identification of their priority land parcels. These methods are applied using Geographic Information System data from a New York conservation easement acquisition initiative for water quality protection.
preprints202410.0848.v1.pdf
Creators: name: Xaba, sfundo
name: Khanyi, Mduduzi
name: Mlotshwa, Nokunqoba
name: Thango, Bonginkosi
name: Matshaka, Lerato
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 460901
subject: Business process management

description: The current research tends to provide a distinct systematic review that examines the influence of Data Networks and APIs on operational efficiency in SMEs around security challenges. Contradictory to the available literature, we focus on how the adoption of these technologies impacts fundamental performance measurements such as response time, resource utilization, cost-effectiveness and scalability in SMEs. We provide new evaluation processes which include operational efficiency and security aspects that ad-dress an existing lack in the related work. This article moves the field forward by offering SME-focused insights and an opening to additional research into how operations can be streamlined yet security risks minimized.
Cybercars : Past, Present and Future of the Technology
Creators: name: Parent, Michel
name: De La Fortelle, Arnaud
Publisher: name: arXiv
Year: 2005
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Automobile has become the dominant transport mode in the world in the last century. In order to meet a continuously growing demand for transport, one solution is to change the control approach for vehicle to full driving automation, which removes the driver from the control loop to improve efficiency and reduce accidents. Recent work shows that there are several realistic paths towards this deployment : driving assistance on passenger cars, automated commercial vehicles on dedicated infrastructures, and new forms of urban transport (car-sharing and cybercars). Cybercars have already been put into operation in Europe, and it seems that this approach could lead the way towards full automation on most urban, and later interurban infrastructures. The European project CyberCars has brought many improvements in the technology needed to operate cybercars over the last three years. A new, larger European project is now being prepared to carry this work further in order to meet more ambitious objectives in terms of safety and efficiency. This paper will present past and present technologies and will focus on the future developments.
Quantum information scrambling in the presence of weak and strong thermalization
Creators: name: Sun, Zheng-Hang
name: Cui, Jian
name: Fan, Heng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Quantum information scrambling under many-body dynamics is of fundamental interest. The tripartite mutual information can quantify the scrambling via its negative value. Here, we first study the quench dynamics of tripartite mutual information in a non-integrable Ising model where the strong and weak thermalization are observed with different initial states. We numerically show that the fastest scrambling can occur when the energy density of the chosen initial state possesses the maximum density of states. We then present an experimental protocol for observing weak and strong thermalization in a superconducting qubit array. Based on the protocol, the relation between scrambling and thermalization revealed in this work can be directly verified by superconducting quantum simulations.
Enumeration of many-body skeleton diagrams
Creators: name: Molinari, Luca Guido
name: Manini, Nicola
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The many-body dynamics of interacting electrons in condensed matter and quantum chemistry is often studied at the quasiparticle level, where the perturbative diagrammatic series is partially resummed. Based on Hedin's equations for self-energy, polarization, propagator, effective potential, and vertex function in zero dimension of space-time, dressed Feynman (skeleton) diagrams are enumerated. Such diagram counts provide useful basic checks for extensions of the theory for future realistic simulations.
description: 5 pages including 4 figures
Capitalization of Open Spaces into Housing Values and the Residential Property Tax Revenue Impacts of Agricultural Easement Programs
Creators: name: Bucholtz, Shawn
name: Geoghegan, Jacqueline
name: Lynch, Lori
name: Bucholtz, Shawn
name: Geoghegan, Jacqueline
name: Lynch, Lori
Publisher: name: Unknown
Year: 2003
Subjects: Land Economics/Use

description: Using a unique spatial database, a hedonic model is developed to estimate the value to nearby residents of open space purchased through agricultural preservation programs in three Maryland counties. After correcting for endogeneity and spatial autocorrelation, the estimated coefficients are used to calculate the potential changes in housing values for a given change in neighborhood open space following an agricultural easement purchase. Then, using the current residential property tax for each parcel, the expected increase in county tax revenue is computed and this revenue is compared to the cost of preserving the lands.
Evaluation of the potential environmental impacts of condom production in Thailand
Creators: name: Jawjit, Warit
name: Pavasant, Prasert
name: Kroeze, Carolien
name: Tuffey, Jindee
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: This study aims to analyse the potential environmental impact of natural rubber (NR) condoms over its entire life cycle. The environmental performance of the production process of NR condoms is also compared to that of synthetic polyisoprene (PI) condoms. Options to reduce the environmental impact of condom production are proposed and evaluated. The potential environmental impacts are quantified by life cycle assessment (LCA). The study takes a cradle-to-grave approach, and considers six phases: 1) fresh latex production, 2) concentrated latex production, 3) condom production, 4) condom use, 5) condom transportation, and 6) condom disposal. The comparative analysis of NR and PI condom production takes a gate-to-gate scope. The functional unit is one gross condom. The results indicate that the condom production phase has the largest share (34–73%) in the environmental impact during the life cycle of NR condoms, followed by the disposal phase (20–60%). Comparing the production of NR and PI condoms reveals that the production of PI condoms results in a 1.5–2.5 times higher environmental impacts than the NR condom production, due to higher electricity consumption, especially for the compounding, dipping, and leaching processes. Reduction of electricity use is a key measure to reduce the environmental impact. Combining natural gas with electricity for the dipping process is a promising option to reduce the electricity use; it results in ~10–17% reduction in environmental impacts.