cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Enhancing $T_c$ in ferromagnetic semiconductors
Creators: name: Sarma, S. Das
name: Hwang, E. H.
name: Priour, D. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We theoretically investigate disorder effects on the ferromagnetic transition ('Curie') temperature $T_c$ in dilute III$_{1-x}$Mn$_x$V magnetic semiconductors (e.g. Ga$_{1-x}$Mn$_x$As) where a small fraction ($x \approx 0.01-0.1$) of the cation atoms (e.g. Ga) are randomly replaced by the magnetic dopants (e.g. Mn), leading to long-range ferromagnetic ordering for $T
description: 5 pages with 4 figures
Macrophage anti-inflammatory behaviour in a multiphase model of atherosclerotic plaque development
Creators: name: Ahmed, Ishraq U.
name: Byrne, Helen M.
name: Myerscough, Mary R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cell Behavior (q-bio.CB)
subject: Tissues and Organs (q-bio.TO)
subject: FOS: Biological sciences

description: Atherosclerosis is an inflammatory disease characterised by the formation of plaques, which are deposits of lipids and cholesterol-laden macrophages that form in the artery wall. The inflammation is often non-resolving, due in large part to changes in normal macrophage anti-inflammatory behaviour that are induced by the toxic plaque microenvironment. These changes include higher death rates, defective efferocytic uptake of dead cells, and reduced rates of emigration. We develop a free boundary multiphase model for early atherosclerotic plaques, and we use it to investigate the effects of impaired macrophage anti-inflammatory behaviour on plaque structure and growth. We find that high rates of cell death relative to efferocytic uptake results in a plaque populated mostly by dead cells. We also find that emigration can potentially slow or halt plaque growth by allowing material to exit the plaque, but this is contingent on the availability of live macrophage foam cells in the deep plaque. Finally, we introduce an additional bead species to model macrophage tagging via microspheres, and we use the extended model to explore how high rates of cell death and low rates of efferocytosis and emigration prevent the clearance of macrophages from the plaque.
Mutual Composite Fermion and composite Boson approaches to balanced and imbalanced bilayer quantum Hall system: an electronic analogy of the Helium 4 system
Creators: name: Ye, Jinwu
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use both Mutual Composite Fermion (MCF) and Composite Boson (CB) approach to study balanced and im-balanced Bi-Layer Quantum Hall systems (BLQH) and make critical comparisons between the two approaches. We find the CB approach is superior to the MCF approach in studying ground states with different kinds of broken symmetries. In the phase representation of the CB theory, we first study the Excitonic superfluid state (ESF). The theory puts spin and charge degree freedoms in the same footing, explicitly bring out the spin-charge connection and classify all the possible excitations in a systematic way. Then in the dual density representation of the CB theory, we study possible intermediate phases as the distance increases. We propose there are two critical distances $ d_{c1} < d_{c2} $ and three phases as the distance increases. When $ 0 < d < d_{c1} $, the system is in the ESF state which breaks the internal $ U(1) $ symmetry, when $ d_{c1} < d < d_{c2} $, the system is in an Pseudo-spin density wave (PSDW) state which breaks the translational symmetry, there is a first order transition at $ d_{c1} $ driven by the collapsing of magneto-roton minimum at a finite wavevector in the pseudo-spin channel. When $ d_{c2} < d < \infty $, the system becomes two weakly coupled $ ν=1/2 $ Composite Fermion Fermi Liquid (FL) state. There is also a first order transition at $ d= d_{c2} $. We construct a quantum Ginzburg Landau action to describe the transition from ESF to PSDW which break the two completely different symmetries. By using the QGL action, we explicitly show that the PSDW takes a square lattice and analyze in detail the properties of the PSDW at zero and finite temperature.
description: 29 PRB pages, 18 figures, 2 tables, REVTEX4
The specification of an industry value-added price and quantity index pair
Creators: name: Moyer, Brian C.
Publisher: name: American University
Year: 2023

description: The proper specification of an industry value-added price and quantity index pair is essential to accurately measuring inflation-adjusted growth rates among the industries that comprise the nation's Gross Domestic Product. The current literature in this area does not offer industry value-added index pairs that are both theoretically defensible and empirically sound. This research develops preferred value-added index pairs following a production-based approach. By drawing from both the production and the aggregation literatures, this research uses the techniques of production and index-number theory to solve a representative industry's value-added aggregation problem---that is, the choice problem in which an industry identifies how its primary inputs (value-added inputs; capital and labor) and its secondary inputs (energy, materials, and services) combine to produce output. The resulting value-added index pairs are examined empirically and are shown to perform well under a variety of economic conditions, including conditions under which traditional and contemporary measurement approaches have commonly failed.
Spectral properties of 1D extended Hubbard model from bosonization and time-dependent variational principle: applications to 1D cuprate
Creators: name: Wang, Hao-Xin
name: Wu, Yi-Ming
name: Jiang, Yi-Fan
name: Yao, Hong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recent ARPES experiments on doped 1D cuprates revealed the importance of effective near-neighbor (NN) attractions in explaining certain features in spectral functions. Here we investigate spectral properties of the extended Hubbard model with the on-site repulsion $U$ and NN interaction $V$, by employing bosonization analysis and the high-precision time-dependent variational principle (TDVP) calculations of the model on 1D chain with up to 300 sites. From state-of-the-art TDVP calculations, we find that the spectral weights of the holon-folding and $3k_F$ branches evolve oppositely as a function of $V$. This peculiar dichotomy may be explained in bosonization analysis from the opposite dependence of exponent that determines the spectral weights on Luttinger parameter $K_ρ$. Moreover, our TDVP calculations of models with fixed $U=8t$ and different $V$ show that $V\approx -1.7t$ may fit the experimental results best, indicating a moderate effective NN attraction in 1D cuprates that might provide some hints towards understanding superconductivity in 2D cuprates.
description: 9 pages, 4 figures
Nana bianca col turbo: un giro ogni 25 secondi
Creators: Gloria Nobile
Publisher: name: Media Inaf
Year: 2021

Osservata da un team di astronomi guidati dall'Università di Warwick, J0240+1952 detiene il record di velocità di rotazione per una nana bianca. Ed è anche una delle sole due stelle mai conosciute ad agire come un sistema a “elica magnetica”, il cui ingrediente principale sembra essere proprio il brevissimo periodo di spin. La ricerca è stata pubblicata oggi su Mnras Letters
ASSESSMENT OF FARMERS’ PERCEPTIONS OF AND WILLINGNESS TO PAY FOR AFLASAFE KE01, A BIOLOGICAL CONTROL FOR AFLATOXINS IN KENYA
Creators: name: Migwi, Bernard Githinji
name: Migwi, Bernard Githinji
Publisher: name: Unknown
Year: 2016
Subjects: Agricultural Finance
Farm Management

description: A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE IN AGRICULTURAL AND APPLIED ECONOMICS, UNIVERSITY OF NAIROBI. Advisors: Dr. John Mburu, Dr. Maina Wagacha, Dr. Charity Mutegi
Galassie satellite mancanti, forse una svolta al Tng
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2021

Una piccola galassia scoperta dall’astrofilo pugliese Giuseppe Donatiello insieme all’astronomo Walter Boschin del Telescopio nazionale Galileo, alle Canarie, potrebbe portare alla soluzione dell’enigma dei cosiddetti “satelliti mancanti”. La conferma della sua natura di galassia nana è stata possibile grazie allo spettrografo Dolores del Tng
Parents' and teachers' ratings of children's social skills and problem behaviors: Their relationship to academic achievement and their level of congruence
Creators: name: Reynolds, Sr., Angelo Donnell
Publisher: name: American University
Year: 2023

description: This study examined parents' and teachers' ratings of the social skills and problem behaviors of elementary school children. Teachers and parents rated fifty children on measures of social skills and problem behaviors. Additionally, this study compared children receiving social skills as part of their academic class room instruction with those who did not. The results revealed that children receiving social skill instruction had higher levels of social skills than the school not receiving social skill instruction. Additionally, teachers' ratings of children's level of problem behaviors and social skills, and parents' ratings were not statistically different from each other. Simultaneous multiple regression analyses demonstrated that none of the parents' or teachers' ratings of children's social skills were predictive of children's reading or mathematics achievement. However, stepwise regression analysis did find that teachers' ratings of problem behaviors were predictive of a total reading score for the children at school B. Although this study indicated that parents' and teachers' ratings of social skills were congruent, the correlation coefficient was not significant enough to establish a relationship between the two. Because students at school A received social skill instruction and students in school B did not, it is likely that a similar study should be conducted having social skill instruction at both schools rather than one. In addition, the possibility of using other variables to explore the relationship between social skills and problem behaviors is also needed. Finally, this study refuted Vygotsky's social learning theory that supports the notion of children's social competence is related to their academic achievement. There was minimal support for the assumed relationship between social skills and academic achievement.
Dark Matter from freeze-in and its inhomogeneities
Creators: name: Strumia, Alessandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider generic freeze-in processes for generation of Dark Matter, together with the consequent re-thermalization of the Standard Model fluid. We find that Dark Matter inherits the Standard Model adiabatic inhomogeneities on the cosmological scales probed by current observations, that were super-horizon during freeze-in. Thereby, freeze-in satisfies the bounds on iso-curvature perturbations.
description: 8 pages. Published on JHEP
Superconductivity in sodium-doped T-carbon
Creators: name: You, Jing-Yang
name: Gu, Bo
name: Su, Gang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: T-carbon has been proposed as a new carbon allotrope in 2011, which was successfully synthesized in recent experiments. Because of its fluffy structure, several kinds of atoms can be intercalated into T-carbon, making it a versatile candidate in various applications such as hydrogen storage, perovskite solar cells, lithium ion batteries, thermoelectrics, photocatalyst, etc. Here we show that superconductivity can appear in Na-doped T-carbon with superconducting transition temperature Tc of 11 K at ambient pressure, and Tc can be enhanced to 19 K under pressure of 14 GPa, which results from an enhancement of the electron-phonon coupling due to the shift of the phonon spectral weight to lower frequencies with the increase of pressure. The calculations on specific heat and electrical and thermal conductivities show that the normal state of the Na-doped T-carbon superconductor reveals a non-Fermi liquid behavior. The prediction of superconductivity in Na-doped T-carbon would spur great interest both experimentally and theoretically to explore novel carbon-based superconductors.
Non-Gaussian Statistics of the Soliton Timing Jitter due to Amplifier Noise
Creators: name: Ho, Keang-Po
Publisher: name: arXiv
Year: 2003
Subjects: subject: Optics (physics.optics)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Based on the first-order perturbation theory of soliton, the Gordon-Haus timing jitter induced by amplifier noise is found to be non-Gaussian distributed. Compared with Gaussian distribution given by the linearized perturbation theory, both frequency and timing jitter have larger tail probability. The timing jitter has a larger discrepancy to Gaussian distribution than that of frequency jitter.
description: 3 pages, 4 figures, submitted to Optics Letters
Come prevenire le invasioni di forme di vita aliene
Creators: Gloria Nobile
Publisher: name: Media Inaf
Year: 2021

Sebbene i ricercatori ritengano l’importazione di un organismo vivente extraterrestre altamente improbabile, le agenzie spaziali di tutto il mondo sono da tempo consapevoli dei potenziali rischi di contaminazione biologica interplanetaria, per esempio nei confronti di Marte. Ora uno studio condotto presso la McGill University sostiene la necessità di migliorare le strategie per la biosicurezza planetaria attraverso la collaborazione fra astrobiologi e biologi dell’invasione, e suggerisce protocolli di protezione del pianeta. La ricerca è pubblicata su BioScience
Numerical simulation of the formation of hurricane Gabrielle (2001)
Creators: name: Musgrave, Kate
name: Davis, Christopher
name: Hansen, Josephine
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2003

Research on the formation of tropical cyclones, while spanning decades, has been limited compared to research on the dynamics and prediction of mature tropical cyclones. The relative de-emphasis on tropical cyclone formation research is linked with the tendency of these systems to form several days away from land. Sometimes, however, tropical cyclones form close to land, giving forecasters as little as a few hours to prepare the public for their potentially devastating impacts. Although researchers have proposed several factors necessary for tropical cyclone formation, some factors seem to play different roles when non-traditional formation occurs. This project examined whether an initial disturbance and vertical wind shear were necessary factors for the formation of Hurricane Gabrielle (2001). Gabrielle formed a few hundred miles from the Florida coast only three days before making landfall. This project simulated the formation of Gabrielle using the fifth-generation Pennsylvania State University-National Center for Atmospheric Research mesoscale model (MM5). The control simulation was compared to observations to establish the closeness of the model output to Gabrielle's actual formation. Additional experiments were subsequently performed to test the response of the developing storm to alterations in the initial conditions. The first additional experiment removed the initial disturbance, while the second reduced the vertical wind shear over and around the area of formation. This project found that when the initial disturbance was removed, Gabrielle did not form. When the vertical wind shear was reduced, a much weaker version of Gabrielle slowly formed.
HOUSEHOLDS’ WILLINGNESS TO PAY FOR SOIL CONSERVATION PRACTICES ON CULTIVATED LAND IN SOUTH ACHEFER DISTRICT, AMHARA NATIONAL REGIONAL STATE OF ETHIOPIA: A CONTINGENT VALUATION APPROACH
Creators: name: Workie, Lamesgin Tebeje
name: Workie, Lamesgin Tebeje
Publisher: name: Unknown
Year: 2017
Subjects: Consumer/Household Economics
Environmental Economics and Policy
Land Economics/Use

description: A Thesis Submitted to School of Agricultural Economics and Agribusiness Postgraduate programs Directorate HARAMAYA UNIVERSITY In Partial Fulfillment of the Requirements for the Degree of COLLABORATIVE MASTER OF SCIENCE IN AGRICULTURE (AGRICULTURAL AND APPLIED ECONOMICS). Advisors: Lemma Zemedu, DegyeGoshu
Bombus (Thoracobombus) pensylvanicus
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Bombus
Bombus pensylvanicus

description: Bombus (Thoracobombus) pensylvanicus (De Geer, 1773)
[Lectotype: NHRS; ♀ USA; Bombus (Thoracobombus) pensylvanicus sonorus Say, 1837 holotype: Tomas Say collection; ☿ Mexico]
The individuals of this species in the Baja California Peninsula exhibit the coloration pattern of Bombus pensylvanicus sonorus, as described by Williams et al. (2014). This is the only bumble bee species found in BCS, where it is found in all ecoregions. In BC, it has been recorded in the Central Desert and the Coastal Sage Matorral with specimens in BBSL, EMEC, INHS, LACM, SEMC, and UCRC (GBIF 2023). We review 73 specimens from BCS (CASC). The BBPT collected six females in the Gulf Coast region, BCS in September and November 2020 (3 ♀ MABC; 3 ♀ ECOAB). However, we are aware of recent sightings of Bombus p. sonorus in San Diego County near the border with BC (Hung et al. 2015) as well as 28 observations on iNaturalist at the time of this writing (https://www. inaturalist.org/observations?place_id=7403,8501&subview=map&taxon_id=57690). See fig. 85.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 146, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
AN ECONOMIC ANALYSIS OF IMPACT OF WEATHER INDEX-BASED CROP INSURANCE ON HOUSEHOLD INCOME IN HUYE DISTRICT OF RWANDA
Creators: name: Ashimwe, Olive
name: Ashimwe, Olive
Publisher: name: Unknown
Year: 2016
Subjects: Agricultural Finance
Consumer/Household Economics
Crop Production/Industries

description: A Thesis Submitted in Partial Fulfillment of the Requirements for the Award of a Master of Science degree in Agricultural and Applied Economics, University of Nairobi. Advisors: Dr. Patrick Irungu, Prof. Rose A. Nyikal
Parents' and teachers' ratings of children's social skills and problem behaviors: Their relationship to academic achievement and their level of congruence
Creators: name: Reynolds, Sr., Angelo Donnell
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: This study examined parents' and teachers' ratings of the social skills and problem behaviors of elementary school children. Teachers and parents rated fifty children on measures of social skills and problem behaviors. Additionally, this study compared children receiving social skills as part of their academic class room instruction with those who did not. The results revealed that children receiving social skill instruction had higher levels of social skills than the school not receiving social skill instruction. Additionally, teachers' ratings of children's level of problem behaviors and social skills, and parents' ratings were not statistically different from each other. Simultaneous multiple regression analyses demonstrated that none of the parents' or teachers' ratings of children's social skills were predictive of children's reading or mathematics achievement. However, stepwise regression analysis did find that teachers' ratings of problem behaviors were predictive of a total reading score for the children at school B. Although this study indicated that parents' and teachers' ratings of social skills were congruent, the correlation coefficient was not significant enough to establish a relationship between the two. Because students at school A received social skill instruction and students in school B did not, it is likely that a similar study should be conducted having social skill instruction at both schools rather than one. In addition, the possibility of using other variables to explore the relationship between social skills and problem behaviors is also needed. Finally, this study refuted Vygotsky's social learning theory that supports the notion of children's social competence is related to their academic achievement. There was minimal support for the assumed relationship between social skills and academic achievement.
ANALYSIS OF QUALITY CONTROL IN THE INFORMAL SEED SECTOR: CASE OF SMALLHOLDER BEAN FARMERS IN BONDO SUB-COUNTY, KENYA
Creators: name: Ouko, Wildred Odhiambo
name: Ouko, Wildred Odhiambo
Publisher: name: Unknown
Year: 2016
Subjects: Crop Production/Industries
Production Economics

description: A Thesis Submitted to the Graduate School in Partial Fulfillment for the Requirements of the Master of Science Degree in Agricultural and Applied Economics of Egerton University. Advisors: Prof. Margaret Ngigi, Prof. Job Lagat
Electromagnetic radiation from collisions at almost the speed of light: an extremely relativistic charged particle falling into a Schwarzschild black hole
Creators: name: Cardoso, Vitor
name: Lemos, Jose' P. S.
name: Yoshida, Shijun
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the electromagnetic radiation released during the high energy collision of a charged point particle with a four-dimensional Schwarzschild black hole. We show that the spectra is flat, and well described by a classical calculation. We also compare the total electromagnetic and gravitational energies emitted, and find that the former is supressed in relation to the latter for very high energies. These results could apply to the astrophysical world in the case charged stars and small charged black holes are out there colliding into large black holes, and to a very high energy collision experiment in a four-dimensional world. In this latter scenario the calculation is to be used for the moments just after the black hole formation, when the collision of charged debris with the newly formed black hole is certainly expected. Since the calculation is four-dimensional, it does not directly apply to Tev-scale gravity black holes, as these inhabit a world of six to eleven dimensions, although our results should qualitatively hold when extrapolated with some care to higher dimensions.
description: 6 pages, 2 figures
Additional file 1 of Randomized controlled trial on the effectiveness of absorbable collagen sponge after extraction of impacted mandibular third molar: split-mouth design
Creators: name: Kim, Jin-Woo
name: Tae-Whan Seong
name: Cho, Sura
name: Sun-Jong Kim
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Table S1. Assessment of gingiva recession, gingival index and bleeding on probing.
Lithium abundance/surface activity connections in solar-type Pleiads
Creators: name: Clarke, D.
name: MacDonald, E. C.
name: Owens, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The relation between the lithium abundance, A_Li, and photospheric activity of solar-type Pleiads is investigated for the first time via acquisition and analysis of B and V-band data. Predictions of activity levels of target stars were made according to the A_Li/(B-V) relation and then compared with new CCD photometric measurements. Six sources behaved according to the predictions while one star (HII 676), with low predicted activity, exhibited the largest variability of the study; another star (HII 3197), with high predicted activity, was surprisingly quiet. Two stars displayed non-periodic fadings, this being symptomatic of orbiting disk-like structures with irregular density distributions. Although the observation windows were not ideal for rotational period detection, some periodograms provided possible values; the light-curve obtained for HII 1532 is consistent with that previously recorded.
description: 8 Pages, 9 Figures, accepted in A&A
Decision Diagram-Based Branch-and-Bound with Caching for Dominance and Suboptimality Detection
Creators: name: Coppé, Vianney
name: Gillard, Xavier
name: Schaus, Pierre
Publisher: name: arXiv
Year: 2022
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Artificial Intelligence (cs.AI)
subject: Discrete Mathematics (cs.DM)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: I.2.8; G.2.1
subject: 90C39, 90C27, 90C57

description: The branch-and-bound algorithm based on decision diagrams introduced by Bergman et al. in 2016 is a framework for solving discrete optimization problems with a dynamic programming formulation. It works by compiling a series of bounded-width decision diagrams that can provide lower and upper bounds for any given subproblem. Eventually, every part of the search space will be either explored or pruned by the algorithm, thus proving optimality. This paper presents new ingredients to speed up the search by exploiting the structure of dynamic programming models. The key idea is to prevent the repeated expansion of nodes corresponding to the same dynamic programming states by querying expansion thresholds cached throughout the search. These thresholds are based on dominance relations between partial solutions previously found and on the pruning inequalities of the filtering techniques introduced by Gillard et al. in 2021. Computational experiments show that the pruning brought by this caching mechanism allows significantly reducing the number of nodes expanded by the algorithm. This results in more benchmark instances of difficult optimization problems being solved in less time while using narrower decision diagrams.
description: Accepted to INFORMS Journal on Computing
The relationship between chemical heating and mesospheric tides in the upper atmosphere
Creators: name: Szymczak, Amanda
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2000

The relationship between chemical heating and tides in the upper atmosphere has not been previously examined. In this study, a chemical heating subroutine was added to a three-dimensional model of the atmosphere, which contained tides. It was found that chemical heating and tides do affect one another in the mesosphere, the area of study between 80-110 km. Tides in crease and perturb chemical heating and chemical heating produces perturbations in the tides.
Centris (Paracentris) caesalpiniae Cockerell 1897
Creators: name: Pedro, Diego De
name: Ceccarelli, Fadia Sara
name: Sagot, Philippe
name: López-Reyes, Eulogio
name: Mullins, Jessica L.
name: Mérida-Rivas, Jorge A.
name: Falcon-Brindis, Armando
name: Griswold, Terry
name: Ascher, John S.
name: Gardner, Joel
name: Ayala, Ricardo
name: Vides-Borrell, Eric
name: Vandame, Rémy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Centris
Centris caesalpiniae

description: Centris (Paracentris) caesalpiniae Cockerell, 1897 *
[Holotype: AMNH; ♂ Las Cruces, New Mexico, USA; May 10]
Centris caesalpiniae is a new record in BC supported by one female specimen collected in Valle de los Cirios in the Central Desert by CARCIB team in July 2017. See fig. 86.
description: Published as part of Pedro, Diego De, Ceccarelli, Fadia Sara, Sagot, Philippe, López-Reyes, Eulogio, Mullins, Jessica L., Mérida-Rivas, Jorge A., Falcon-Brindis, Armando, Griswold, Terry, Ascher, John S., Gardner, Joel, Ayala, Ricardo, Vides-Borrell, Eric & Vandame, Rémy, 2024, Revealing the Baja California Peninsula's Hidden Treasures: An Annotated checklist of the native bees (Hymenoptera: Apoidea: Anthophila), pp. 1-391 in Zootaxa 5522 (1) on page 148, DOI: 10.11646/zootaxa.5522.1.1, http://zenodo.org/record/13920532
Fluid-gravity correspondence in the scalar-tensor theory of gravity: (in)equivalence of Einstein and Jordan frames
Creators: name: Bhattacharya, Krishnakanta
name: Majhi, Bibhas Ranjan
name: Singleton, Douglas
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The duality of gravitational dynamics (projected on a null hypersurface) and of fluid dynamics is investigated for the scalar tensor (ST) theory of gravity. The description of ST gravity, in both Einstein and Jordan frames, is analyzed from fluid-gravity viewpoint. In the Einstein frame the dynamical equation for the metric leads to the Damour-Navier-Stokes (DNS) equation with an external forcing term, coming from the scalar field in ST gravity. In the Jordan frame the situation is more subtle. We observe that finding the DNS equation in this frame can lead to two pictures. In one picture, the usual DNS equation is modified by a Coriolis-like force term, which originates completely from the presence of a non-minimally coupled scalar field ($ϕ$) on the gravity side. Moreover, the identified fluid variables are no longer conformally equivalent with those in the Einstein frame. However, this picture is consistent with the saturation of Kovtun-Son-Starinets (KSS) bound. In the other picture, we find the standard DNS equation (i.e. without the Coriolis-like force), with the fluid variables conformally equivalent with those in Einstein frame. But, the second picture, may not agree with the KSS bound for some values of $ϕ$. We conclude by rewriting the Raychaudhuri equation and the tidal force equation in terms of the relevant parameters to demonstrate how the expansion scalar and the shear-tensor evolve in the spacetime. Although, the area law of entropy is broken in ST gravity, we show that the rewritten form of Raychaudhuri's equation correctly results in the generalized second law of black hole thermodynamics.
description: New comments added, to appear in JHEP
Using lidar data to characterize differences in cloud properties of polluted and unpolluted air masses in the Indian Ocean region
Creators: name: Rosenzweig, Bernice
name: Mcfarquhar, Gregory
name: Stott, Don
name: Beasant, Norma
name: Church, Andrew
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2000

Aerosols modify climate directly by reflecting incoming solar and absorbing outgoing longwave radiation and indirectly by altering the microphysical properties of clouds, influencing how clouds reflect solar radiation. If aerosols also modify the larger scale physical properties of clouds, this could cause changes in their radiative properties at are not accounted for in present day climate models. Using measurements of aerosol concentration (A) collected onboard the NCAR C130 during the Indian Ocean Experiment (INDOEX), clouds were classified as pristine (A<500m⁻³), transition (500cm⁻³ < A < 1500cm⁻³), or polluted (A>1500cm⁻³). Then using nadir airborne lidar data, measured cloud top heights in polluted air masses were found to be 897m±190m, and in pristine are masses 1223m± 405m, a difference of only 27%. Statistics assembled on the geometric properties of the aerosol layers show that multiple aerosol layers occur more frequently in polluted regions than in transition regions, with virtually no discernible aerosol layers in pristine regions. It was also determined that when multiple layers are present, their uppermost layers are lower in height than when only one thick aerosol layer is present.
Inelastic Electron Scattering at a Single-Beam Structured Light Wave
Creators: name: Ebel, Sven
name: Talebi, Nahid
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we demonstrate the inelastic scattering of slow-electron wavepackets at a propagating Hermite-Gaussian light beam. The pulsed Hermite-Gaussian beam thereby forms a ponderomotive potential for the electron with large enough momentum components, leading to the inelastic scattering of electrons and their bunching along the longitudinal direction. We show that the resulting energy-gain spectra after the interaction is strongly influenced by the self-interference of the electron in this ponderomotive potential. It is shown that this effect is observable for various optical wavelengths and intensities and further discuss how the variation of the electron velocity and the light intensity allow to control the energy modulation of the electron wavepacket. This effect opens up a new platform for manipulating the electron wavepacket by utilizing the vast landscape of structured electromagnetic fields.
IMPACT OF SMALL-SCALE IRRIGATION ON POVERTY IN RURAL MALAWI
Creators: name: Nyirenda, Zephania Bondera
name: Nyirenda, Zephania Bondera
Publisher: name: Unknown
Year: 2015
Subjects: Food Security and Poverty
Resource /Energy Economics and Policy

description: A THESIS SUBMITTED TO THE FACULTY OF DEVELOPMENT STUDIES IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE AWARD OF THE DEGREE OF MASTER OF SCIENCE IN AGRICULTURAL AND APPLIED ECONOMICS UNIVERSITY OF MALAWI BUNDA COLLEGE OF AGRICULTURE. Advisors: Prof. A. K. Edriss, Dr. L. D. Mapemba, Dr. B. H. Z. Moyo
Examining satellite data as a technique for studying suppression of rain by industrial pollution
Creators: name: Gonzรกles, Darilis
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2000

Daniel Rosenfeld recently illustrated that satellite data could be used to study the effects of industrial pollution on rainfall in southern Australia. An examination of Rosenfeld's technique was done to find if it is reasonable to study these effects in other parts of the world. Tropical Rainfall Measurement Mission (TRMM) satellite data were used in regions near Wuham and Hong Kong, China; Adelaide and Melbourne, Australia; Los Angeles, California; and Mexico City, Mexico. Information about cloud reflectivity and precipitation were calculated using TRMM data in the visible, infrared, and microwave channels. Relationships among industrial air pollution and precipitation were examined using the following criteria: the reflective clouds should be fairly close to the industrialized region, the wind direction must indicate that pollution was headed toward areas with high reflectivity, and precipitation should be suppressed in those areas. After analyzing eighteen cases, it was found that the technique worked for eight cases with some limitations. In some regions precipitation did not seem to be related to cloud reflectivity. Additionally, precipitation was incompletely suppressed in areas with high reflectivity, demonstrating that the technique needs further development.
Undici miliardi di dollari per l’erede di Hubble
Creators: Rossella Spiga
Publisher: name: Media Inaf
Year: 2021

Da qualche giorno è pubblico “Astro2020”, il documento delle National Academies of Sciences, Engineering and Medicine statunitensi che raccomanda le linee guida per la ricerca scientifica e tecnologica nel campo dell’astronomia e dell’astrofisica nel prossimo decennio. Il progetto di punta è Luvoir, un telescopio spaziale da otto metri per osservare dall’infrarosso all’ultravioletto. Il commento di Roberto Ragazzoni dell’Inaf
Real -time measurement of dissimulation on self -report measures
Creators: name: Roth, Joan Lee
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: Holden (1992) has developed a theory of the underlying process of dissimulation based on response latencies to questionnaire items. Specifically, he stipulates that respondents who are lying or malingering should endorse items that fit their made up schema more quickly than items for which they are aschematic and reject items that fit their made up schema more slowly than items for which they are aschematic. Such respondents will probably reject some items that fit their made-up schema so as not to come across as too good or too bad. He found that it is the rejection of the items that fit the schema, which he also refers to as incongruent responses, that discriminates between someone who is actually lying and someone who is faking lying. Those who did endorse incongruent responses as part of a faked schema took longer to respond than those who were actually lying. This study attempted to replicate and extend Holden's findings by combining response latency, which focuses on process, rather than content with adaptive testing which focuses completely on content. We tested this through the creation of our own personnel questionnaire, which was administered to undergraduate and graduate students. Results revealed a pattern in the types of questions that were able to induce dissimulation. Questions requiring responses that are not easily documented were the most susceptible to dissimulation based on the percentage of change (e.g. Have you ever used a fake illness or injury as a reason for absence from school or work?). However, it was the questions pertaining to specific skills that appeared to be the most likely to discriminate between those participants asked to respond honestly and those participants asked to fake their responses in order to "get the job."*. *Originally published in DAI Vol. 63, No. 8. Republished here with corrected author name.
Additional file 2 of Cerebrospinal fluid phospho-tau T217 outperforms T181 as a biomarker for the differential diagnosis of Alzheimer’s disease and PET amyloid-positive patient identification
Creators: name: Barthélemy, Nicolas R.
name: Bateman, Randall J.
name: Hirtz, Christophe
name: Marin, Philippe
name: Becher, François
name: Sato, Chihiro
name: Gabelle, Audrey
name: Lehmann, Sylvain
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: SupTable 1. Clinical and MRI characteristics of the Montpellier cohort. SupTable 2. Percentage of T181 and T217 phosphorylation. SupTable 3. AUC of phosphorylation of the different sites. SupTable 4. Correlation between CSF biomarkers and PiB-PET. SupTable 5. Internal quality control and reproducibility of the two methods.
Is supergranulation on the sun's surface convection?
Creators: name: Sands, J.
name: Rast, M.
Publisher: name: University Corporation For Atmospheric Research (UCAR)
Year: 2000

We examined 177 supergranules to determine whether the temperature variations due to convection could be observed. Images in three wavelengths from the Precision Solar Photometric Telescope (PSPT) were used: Calcium K images, Blue continuum images and Red continuum images. Supergranules were identified in the Calcium K image. Since Calcium K is not an indicator of temperature, the Blue and Red continuum images of the same region were used to determine brightness variations within the supergranulation. The supergranule centers were found to be dimmer on average in the center and hotter towards the cell boundary unlike what one would expect from convection. The results of the supergranulation surrounded by active network are summarized separately from those surrounded by quiet network.
Additional file 1 of Cerebrospinal fluid phospho-tau T217 outperforms T181 as a biomarker for the differential diagnosis of Alzheimer’s disease and PET amyloid-positive patient identification
Creators: name: Barthélemy, Nicolas R.
name: Bateman, Randall J.
name: Hirtz, Christophe
name: Marin, Philippe
name: Becher, François
name: Sato, Chihiro
name: Gabelle, Audrey
name: Lehmann, Sylvain
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: SupFigure 1. ROC curves of biomarker combinations. The ROC curves for the detection of the amyloid (+) patients in the WUSTL cohort (Panel A) or the AD patients in the Montpellier cohort (Panel B) for Aβ1–42, MS_pT181, MS_pT217, MS_pT181/ Aβ1–42 and MS_pT217/ Aβ1–42 were plotted. AUC values and statistical differences between curves of the panel A are reported in SupTable 3. SupFigure 2. CSF p-tau181 correlation with Pib-PET. The MS_pT181 values (panel A) and % of T181 phosphorylation (% MS_pT181, panel B) were plotted against their corresponding PiB-PET values in the WUSTL cohort composed of amyloid (−) and (+) patients. Correlation coefficients are indicated.
Electron-phonon coupling and phonon self-energy in MgB$_2$: do we really understand MgB$_2$ Raman spectra ?
Creators: name: Calandra, Matteo
name: Mauri, Francesco
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We consider a model Hamiltonian fitted on the ab-initio band structure to describe the electron-phonon coupling between the electronic $σ-$bands and the phonon E$_{2g}$ mode in MgB$_2$. The model allows for analytical calculations and numerical treatments using very large k-point grids. We calculate the phonon self-energy of the E$_{2g}$ mode along two high symmetry directions in the Brillouin zone. We demonstrate that the contribution of the $σ$ bands to the Raman linewidth of the E$_{2g}$ mode via the electron-phonon coupling is zero. As a consequence the large resonance seen in Raman experiments cannot be interpreted as originated from the $E_{2g}$ mode at $Γ$. We examine in details the effects of Fermi surface singularities in the phonon spectrum and linewidth and we determine the magnitude of finite temperature effects in the the phonon self-energy. From our findings we suggest several possible effects which might be responsible for the MgB$_2$ Raman spectra.
description: 10 pages, 9 figures
Quantum clock models with infinite-range interactions
Creators: name: Offei-Danso, Adu
name: Surace, Federica Maria
name: Iemini, Fernando
name: Russomanno, Angelo
name: Fazio, Rosario
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the phase diagram, both at zero and finite temperature, in a class of $\mathbb{Z}_q$ models with infinite range interactions. We are able to identify the transitions between a symmetry-breaking and a trivial phase by using a mean-field approach and a perturbative expansion. We perform our analysis on a Hamiltonian with $2p$-body interactions and we find first-order transitions for any $p>1$; in the case $p=1$, the transitions are first-order for $q=3$ and second-order otherwise. In the infinite-range case there is no trace of gapless incommensurate phase but, when the transverse field is maximally chiral, the model is in a symmetry-breaking phase for arbitrarily large fields. We analytically study the transtion in the limit of infinite $q$, where the model possesses a continuous $U(1)$ symmetry.
Real -time measurement of dissimulation on self -report measures
Creators: name: Roth, Joan Lee
Publisher: name: American University
Year: 2023

description: Holden (1992) has developed a theory of the underlying process of dissimulation based on response latencies to questionnaire items. Specifically, he stipulates that respondents who are lying or malingering should endorse items that fit their made up schema more quickly than items for which they are aschematic and reject items that fit their made up schema more slowly than items for which they are aschematic. Such respondents will probably reject some items that fit their made-up schema so as not to come across as too good or too bad. He found that it is the rejection of the items that fit the schema, which he also refers to as incongruent responses, that discriminates between someone who is actually lying and someone who is faking lying. Those who did endorse incongruent responses as part of a faked schema took longer to respond than those who were actually lying. This study attempted to replicate and extend Holden's findings by combining response latency, which focuses on process, rather than content with adaptive testing which focuses completely on content. We tested this through the creation of our own personnel questionnaire, which was administered to undergraduate and graduate students. Results revealed a pattern in the types of questions that were able to induce dissimulation. Questions requiring responses that are not easily documented were the most susceptible to dissimulation based on the percentage of change (e.g. Have you ever used a fake illness or injury as a reason for absence from school or work?). However, it was the questions pertaining to specific skills that appeared to be the most likely to discriminate between those participants asked to respond honestly and those participants asked to fake their responses in order to "get the job."*. *Originally published in DAI Vol. 63, No. 8. Republished here with corrected author name.
Large Fluctuations in Amplifying Graphs
Creators: name: Lepri, Stefano
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We consider a model for chaotic diffusion with amplification on graphs associated with piecewise-linear maps of the interval [S. Lepri, Chaos Solitons & Fractals, 139,110003 (2020)]. We determine the conditions for having fat-tailed invariant measures by considering approximate solution of the Perron-Frobenius equation for generic graphs. An analogy with the statistical mechanics of a directed polymer is presented that allows for a physically appealing interpretation of the statistical regimes. The connection between non-Gaussian statistics and the generalized Lyapunov exponents $L(q)$ is illustrated. Finally, some results concerning large graphs are reported.
description: Submitted to Fluctuation and Noise Letters, special issue Dynamics and Complexity Pisa 22 (DCP22)