cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Discovery of optically faint obscured quasars with Virtual Observatory tools
Creators: name: Padovani, P.
name: Allen, M. G.
name: Rosati, P.
name: Walton, N. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use Virtual Observatory (VO) tools to identify optically faint, obscured (i.e., type 2) active galactic nuclei (AGN) in the two Great Observatories Origins Deep Survey (GOODS) fields. By employing publicly available X-ray and optical data and catalogues we discover 68 type 2 AGN candidates. The X-ray powers of these sources are estimated by using a previously known correlation between X-ray luminosity and X-ray-to-optical flux ratio. Thirty-one of our candidates have high estimated powers (Lx > 10^44 erg/s) and therefore qualify as optically obscured quasars, the so-called ``QSO 2''. Based on the derived X-ray powers, our candidates are likely to be at relatively high redshifts, z ~ 3, with the QSO 2 at z ~ 4. By going ~ 3 magnitudes fainter than previously known type 2 AGN in the two GOODS fields we are sampling a region of redshift - power space which was previously unreachable with classical methods. Our method brings to 40 the number of QSO 2 in the GOODS fields, an improvement of a factor ~ 4 when compared to the only 9 such sources previously known. We derive a QSO 2 surface density down to 10^-15 erg/cm^2/s in the 0.5 - 8 keV band of >~ 330/deg^2, ~ 30% of which is made up of previously known sources. This is larger than current estimates and some predictions and suggests that the surface density of QSO 2 at faint flux limits has been underestimated. This work demonstrates that VO tools are mature enough to produce cutting-edge science results by exploiting astronomical data beyond ``classical'' identification limits (R
description: 16 pages, 6 figures, accepted for publication in Astronomy & Astrophysics. PDF file with higher resolution figures available at http://www.eso.org/~ppadovan/AVO-paper.pdf
Integrable Lattice Models and Holography
Creators: name: Ashwinkumar, Meer
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study four-dimensional Chern-Simons theory on $D \times \mathbb{C}$ (where $D$ is a disk), which is understood to describe rational solutions of the Yang-Baxter equation from the work of Costello, Witten and Yamazaki. We find that the theory is dual to a boundary theory, that is a three-dimensional analogue of the two-dimensional chiral WZW model. This boundary theory gives rise to a current algebra that turns out to be an "analytically-continued" toroidal Lie algebra. In addition, we show how certain bulk correlation functions of two and three Wilson lines can be captured by boundary correlation functions of local operators in the three-dimensional WZW model. In particular, we reproduce the leading and subleading nontrivial contributions to the rational R-matrix purely from the boundary theory.
description: 22 pages, 8 figures. Additional discussions and minor improvements. Published in JHEP
Finite-temperature properties of excitonic condensation in the extended Falicov-Kimball model: Cluster mean-field-theory approach
Creators: name: Kadosawa, Masahiro
name: Nishimoto, Satoshi
name: Sugimoto, Koudai
name: Ohta, Yukinori
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the electron-hole pair (or excitonic) condensation in the extended Falicov-Kimball model at finite temperatures based on the cluster mean-field-theory approach, where we make the grand canonical exact-diagonalization analysis of small clusters using the sine-square deformation function. We thus calculate the ground-state and finite-temperature phase diagrams of the model, as well as its optical conductivity and single-particle spectra, thereby clarifying how the preformed pair states appear in the strong-coupling regime of excitonic insulators. We compare our results with experiment on Ta$_2$NiSe$_5$.
description: 5 pages, 5 figures
Projekcja opłacalności uprawy zbóż w Polsce w 2022 roku na tle prognozy produkcji zbóż w Unii Europejskiej do 2030 roku
Projection of Profitability of Cereal Crops in Poland in 2022 against the Forecast of Cereal Production in the European Union in 2030
Creators: name: Skarżyńska, Aldona
name: Pietrych, Łukasz
name: Skarżyńska, Aldona
name: Pietrych, Łukasz
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Research Methods/ Statistical Methods
subject: cereal production
subject: trend models
subject: forecasting
subject: produkcja roślinna
subject: modele trendu
subject: prognozowanie

description: The aim of the research was to determine the impact of the forecasted change in the prices of agricultural production, yield and product sales prices on the profitability of winter wheat, winter rye and spring barley in 2022. Research results indicate an improvement in the production and price results of the examined cereals. We calculate that the strongest forecasted revenue increase is observed in the case of rye producers. The range of deviations from cereal projection due to unit changes in yield, price and cultivation costs were also examined. The results indicate that rye and spring barley are characterized by quite high sensitivity to each of the income-generating factors, while in the case of winter wheat the strength of their impact is weaker. The progressive integration processes indicate that our considerations should take into account the anticipated changes on the EU market. Thus the results are presented in the light of predicted changes in the European Commission 2030 forecast. / Synopsis. Celem badań było określenie wpływu prognozowanej zmiany cen środków do produkcji rolnej, plonów oraz cen sprzedaży produktów na opłacalność uprawy pszenicy ozimej, żyta ozimego i jęczmienia jarego w 2022 roku. Rezultaty badań wskazują na poprawę wyników produkcyjnych i cenowych badanych zbóż. Stwierdzono, że najsilniejszy wzrost przychodów odnotują producenci żyta. Zbadano również zakres odchyleń od wyników projekcji zbóż, ze względu na jednostkowe zmiany plonu, ceny i kosztów uprawy. Wyniki wskazują, że żyto i jęczmień jary charakteryzuje dość duża wrażliwość na każdy z czynników dochodotwórczych, natomiast w przypadku pszenicy ozimej siła ich oddziaływania jest słabsza. Postępujące procesy integracji powodują, że tego typu rozważania należy prowadzić z uwzględnieniem przewidywanych zmian na rynku unijnym. W związku z tym wyniki zaprezentowano na tle zmian jakie do 2030 roku przewiduje Komisja Europejska.
description: DOI: 10.22630/PRS.2018.18.1.21
Does money matter? The effect of fee structure on psychotherapy effort and outcome variables
Creators: name: Drexler, Lisa Pauline
Publisher: name: American University
Year: 2023

description: Debate about the therapeutic value of fees in psychotherapy has been present since the publication of early psychoanalytic writings. Two theories, based on psychoanalytic and cognitive dissonance concepts, have both predicted that the payment of some fee contributes to effective psychotherapy. The present study examined psychotherapy effort and outcome data collected from client families receiving psychotherapy services at various family therapy clinics, under the auspices of the Maryland Association of Youth Service Bureaus. Some of these clinics charged a flat fee for psychotherapy, some used a sliding scale fee structure, and others provided free services. Data from sites that now charge fees were examined across a period before and after fee structures were implemented, allowing for a pre-post comparison within sites. Results indicate that fee structure did not interact with the time of data collection (pre-fees or post-fees) to affect either psychotherapy effort or outcome variables. Discussion focuses on questioning the assumption that charging fees improves psychotherapy.
Metafeatures-based Rule-Extraction for Classifiers on Behavioral and Textual Data
Creators: name: Ramon, Yanou
name: Martens, David
name: Evgeniou, Theodoros
name: Praet, Stiene
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Machine learning models on behavioral and textual data can result in highly accurate prediction models, but are often very difficult to interpret. Rule-extraction techniques have been proposed to combine the desired predictive accuracy of complex "black-box" models with global explainability. However, rule-extraction in the context of high-dimensional, sparse data, where many features are relevant to the predictions, can be challenging, as replacing the black-box model by many rules leaves the user again with an incomprehensible explanation. To address this problem, we develop and test a rule-extraction methodology based on higher-level, less-sparse metafeatures. A key finding of our analysis is that metafeatures-based explanations are better at mimicking the behavior of the black-box prediction model, as measured by the fidelity of explanations.
description: 31 pages, 13 figures
Anagyrus Howard 1896
Creators: name: Soler, José María
name: Falcó-Garí, José Vicente
name: Herrero, Berta
name: Aquino, Daniel Alejandro
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Encyrtidae
Anagyrus

description: Key to Anagyrus parasitoids of Planococcus and Pseudococcus mealybugs in Eastern Spain (females)
1 Clava dark, testaceous, brown or black (Figs. 2, 7, 28)....................................................... 2
- Clava white (Figs. 15, 24, 26)........................................................................... 4
 2(1) F1 brown, very dark, nearly black, F2 and basal half of F3, white, F4 to F6 pale brown; clava pale brownish yellow (Fig. 2). Forewing with the postmarginal vein clearly shorter than stigmal vein (Fig. 3)................... Anagyrus aligarhensis
- F1 variable, F2-F6 and clava uniformly dark (Figs. 7, 28). Postmarginal vein of fore wing similar or longer than stigmal vein (Figs. 8, 29)......................................................................................... 3
 3(2) Antenna with all segments of flagellum completely black (Fig. 7). Head generally orange (fig. 6). Fore wing with a zone of white and pale setae only located at the apical extreme (Fig. 8)................................ Anagyrus fusciventris
 - F1 black and basally white (Fig. 28). Head testaceous-brown, inner orbits of eyes yellowish (Fig. 30). Forewing with a pattern of white and pale setae forming a broad longitudinal medial hyaline band from the basal extreme to the apical one (Fig. 29).................................................................................... Anagyrus matritensis
 4(1) Head black (Figs. 14, 15). F1 to F4 completely black, F5 partially black (65% black basally and 35% white apically), F6 and clava completely white (Fig. 15)................................................ Anagyrus borrianensis sp. nov.
- Head orange to yellowish (Figs. 24, 26). F2-F6 white (Figs. 24, 26)............................................. 5
 5(4) First funicle segment contrastingly partially black (basal half or so) and white (distal half or so), rest of flagellum completely white (Fig. 24)...................................................................... Anagyrus pseudococci
 - First funicle segment completely black and rest of flagellum white (Fig. 28)....................... Anagyrus vladimiri
description: Published as part of Soler, José María, Falcó-Garí, José Vicente, Herrero, Berta & Aquino, Daniel Alejandro, 2021, The Anagyrus (Hymenoptera: Encyrtidae) parasitoids of the obscure mealybug Pseudococcus viburni (Hemiptera: Pseudococcidae) in Spain, with description of a new species, pp. 83-98 in Zootaxa 4980 (1) on page 94, DOI: 10.11646/zootaxa.4980.1.5, http://zenodo.org/record/4883037
Critical sets in the elementary abelian 2- and 3- groups
Creators: name: Bean, Richard
Publisher: name: arXiv
Year: 2004
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05B15

description: In 1998, Khodkar showed that the minimal critical set in the Latin square corresponding to the elementary abelian 2-group of order 16 is of size at most 124. Since the paper was published, improved methods for solving integer programming problems have been developed. Here we give an example of a critical set of size 121 in this Latin square, found through such methods. We also give a new upper bound on the size of critical sets of minimal size for the elementary abelian 2-group of order $2^n$: $4^{n}-3^{n}+4-2^{n}-2^{n-2}$. We speculate about possible lower bounds for this value, given some other results for the elementary abelian 2-groups of orders 32 and 64. An example of a critical set of size 29 in the Latin square corresponding to the elementary abelian 3-group of order 9 is given, and it is shown that any such critical set must be of size at least 24, improving the bound of 21 given by Donovan, Cooper, Nott and Seberry.
description: 9 pages
The Inner Structure of LCDM Halos II: Halo Mass Profiles and LSB Rotation Curves
Creators: name: Hayashi, E.
name: Navarro, J. F.
name: Power, C.
name: Jenkins, A.
name: Frenk, C. S.
name: White, S. D. M.
name: Springel, V.
name: Stadel, J.
name: Quinn, T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use a set of high-resolution cosmological N-body simulations to investigate the inner mass profile of galaxy-sized cold dark matter (CDM) halos. These simulations extend the thorough numerical convergence study presented in Paper I of this series (Power et al. 2003), and demonstrate that the mass profile of CDM halos can be robustly estimated beyond a minimum converged radius of order r_conv ~ 1 kpc/h in our highest resolution runs. The density profiles of simulated halos become progressively shallow from the virial radius inwards, and show no sign of approaching a well-defined power-law behaviour near the centre. At r_conv, the logarithmic slope of the density profile is steeper than the asymptotic ρ\propto r^-1 expected from the formula proposed by Navarro, Frenk, and White (1996), but significantly shallower than the steeply divergent ρ\propto r^-1.5 cusp proposed by Moore et al. (1999). We perform a direct comparison of the spherically-averaged dark matter circular velocity (V_c) profiles with rotation curves of low surface brightness (LSB) galaxies from the samples of de Blok et al. (2001), de Blok and Bosma (2002), and Swaters et al. (2003). Most (about two-thirds) LSB galaxies in this dataset are roughly consistent with CDM halo V_c profiles. However, about one third of LSBs in these samples feature a sharp transition between the rising and flat part of the rotation curve that is not seen in the V_c profiles of CDM halos. This discrepancy has been interpreted as excluding the presence of cusps, but we argue that it might simply reflect the difference between circular velocity and gas rotation speed likely to arise in gaseous disks embedded within realistic, triaxial CDM halos.
description: 30 pages, 11 figures, submitted to MNRAS
Additional file 16 of Rule-based meta-analysis reveals the major role of PB2 in influencing influenza A virus virulence in mice
Creators: name: Ivan, Fransiskus Xaverius
name: Kwoh, Chee Keong
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 16: Table S12. Examples of rules generated by OneR, JRip and PART for two-class and three-class C57BL/6 datasets containing concatenated alignments of IAV proteins.
A comparison of problem-solving abilities between reform calculus students and traditional calculus students
Creators: name: Brunett, Maria R.
Publisher: name: American University
Year: 2023

description: The purpose of this study was to evaluate the effects of CCH calculus instruction on problem solving achievement with the students enrolled in CCH sections as the experimental group and students enrolled in traditional curriculum sections as the control group. The major objective of the study was to determine whether the CCH or the traditional calculus students demonstrate greater problem solving achievement. Related objectives were to determine the specific strategies being used by the students who demonstrate better problem solving abilities, and what components of the students' problem solving procedures are consistent with demonstrated strengths or weaknesses in problem solving. The study was conducted with thirty-one students in the control group, receiving traditional instruction, and forty-one students in the experimental group, receiving CCH instruction. Each group worked the same five posttest problems as part of their final exam. The groups' performance on these problems was compared using a linear regression model, at the $\alpha$ =.05 significance level, with the postscore as the dependent variable, the prescore as the predictor variable and the instructional curriculum as the independent variable. It was shown that calculus students who received traditional instruction performed significantly better on a problem solving posttest than calculus students who received CCH instruction. Using the Mann-Whitney Rank Test, it was shown that calculus students who received traditional instruction used significantly more problem solving techniques on an applied maximum/minimum problem than calculus students who received CCH instruction. From the results of the Fisher Exact Test for 2 x 2 Tables, it was shown that the course completion rate, with a letter grade of "C" or better, was not significantly different for the two groups. Recommendations for further research were outlined. One recommendation was the inclusion of an interview component so that the researcher can ask subjects to provide a discussion of calculus concepts and their solutions to problems. A second recommendation was to track the success of students from the two instructional groups in subsequent mathematics and mathematics related courses.
Additional file 1 of Medicine shortages and challenges with the procurement process among public sector hospitals in South Africa; findings and implications
Creators: name: Modisakeng, Cynthia
name: Matlala, Moliehi
name: Godman, Brian
name: Meyer, Johanna Catharina
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 1. Interview guide.
Wzrost pobudzany eksportem czy eksport stymulowany wzrostem sektora rolnego
Growth Led by Exports or Exports Driven by Agricultural Sector Growth
Creators: name: Strojny, Jacek
name: Strojny, Jacek
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: International Development
subject: International Relations/Trade
subject: cointegration analysis
subject: VAR models
subject: agricultural production
subject: agri-food exports
subject: analiza kointegracyjna
subject: modele VAR
subject: produkcja rolna
subject: eksport rolno-żywnościowy

description: The aim of the article is to analyze the interrelationship between the international exchange of agri-food products and the level of the agricultural production in selected EU countries. The study is based on cointegration analysis methodology and employs vector autoregression models (VAR). The relevance of export expansion for the growth of agricultural production differs in individual EU countries. Agricultural production in Poland has a lot to do with the level of the exports, but it is under the influence of its own developmental tendency, as well. The Polish agri-food exports are shaped heavily by their own trend. No interrelationship was detected between agricultural production and agri-food exports in France. On the other hand, exports are influenced by their trend and additionally a strong impact of the level of agricultural production on exports was detected. To conclude, exports support agricultural production in Poland, and the high level of production of the agricultural sector stimulates exports in France. / Synopsis. Celem opracowania jest analiza współzależności między międzynarodową wymianą produktami rolno-żywnościowymi a poziomem produkcji rolnej w wybranych krajach UE. Badanie oparto na metodologii analizy kointegracyjnej i modelach wektorowej autoregresji (VAR). Znaczenie ekspansji eksportowej dla wzrostu produkcji rolnej jest odmienne w poszczególnych krajach UE. W Polsce produkcja rolna jest kształtowana w znacznej mierze poziomem eksportu, ale pozostaje także pod wpływem własnej tendencji rozwojowej. Polski eksport rolno-spożywczy jest kształtowany własną tendencją rozwojową. Dla Francji nie wykryto współzależności między produkcją rolną i eksportem rolno-żywnościowym. Z drugiej strony, eksport jest kształtowany własną tendencją rozwojową i zidentyfikowano zależność między eksportem i produkcją rolną. Podsumowując, w Polsce eksport wspiera produkcję rolną, a we Francji wysoki poziom produkcji sektora rolnego stymuluje eksport.
description: DOI: 10.22630/PRS.2018.18.1.23
The Quest for Microwave Foreground X
Creators: name: de Oliveira-Costa, Angelica
name: Tegmark, Max
name: Davies, R. D.
name: Gutierrez, Carlos M.
name: Lasenby, A. N.
name: Rebolo, R.
name: Watson, R. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The WMAP team has produced a foreground map that can account for most of the low-frequency Galactic microwave emission in the WMAP maps, tentatively interpreting it as synchrotron emission. Finkbeiner and collaborators have challenged these conclusions, arguing that the WMAP team "synchrotron" template is in fact not dominated by synchrotron radiation, but by some dust-related Galactic emission process, perhaps spinning dust grains, making dramatically different predictions for its behavior at lower frequencies. By cross-correlating this "synchrotron" template with 10 and 15 GHz CMB observations, we find that its spectrum turns over in a manner consistent with spinning dust emission, falling about an order of magnitude below what the synchrotron interpretation would predict.
description: 4 pages, 1 fig. Submitted to ApJ. Color figures and more foreground information at http://www.hep.upenn.edu/~angelica/foreground.html or from angelica@hep.upenn.edu
A comparison of problem-solving abilities between reform calculus students and traditional calculus students
Creators: name: Brunett, Maria R.
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 39
subject: Education
classificationCode: 3901
subject: Curriculum and pedagogy

description: The purpose of this study was to evaluate the effects of CCH calculus instruction on problem solving achievement with the students enrolled in CCH sections as the experimental group and students enrolled in traditional curriculum sections as the control group. The major objective of the study was to determine whether the CCH or the traditional calculus students demonstrate greater problem solving achievement. Related objectives were to determine the specific strategies being used by the students who demonstrate better problem solving abilities, and what components of the students' problem solving procedures are consistent with demonstrated strengths or weaknesses in problem solving. The study was conducted with thirty-one students in the control group, receiving traditional instruction, and forty-one students in the experimental group, receiving CCH instruction. Each group worked the same five posttest problems as part of their final exam. The groups' performance on these problems was compared using a linear regression model, at the $\alpha$ =.05 significance level, with the postscore as the dependent variable, the prescore as the predictor variable and the instructional curriculum as the independent variable. It was shown that calculus students who received traditional instruction performed significantly better on a problem solving posttest than calculus students who received CCH instruction. Using the Mann-Whitney Rank Test, it was shown that calculus students who received traditional instruction used significantly more problem solving techniques on an applied maximum/minimum problem than calculus students who received CCH instruction. From the results of the Fisher Exact Test for 2 x 2 Tables, it was shown that the course completion rate, with a letter grade of "C" or better, was not significantly different for the two groups. Recommendations for further research were outlined. One recommendation was the inclusion of an interview component so that the researcher can ask subjects to provide a discussion of calculus concepts and their solutions to problems. A second recommendation was to track the success of students from the two instructional groups in subsequent mathematics and mathematics related courses.
Observing Nucleon Decay in Lead Perchlorate
Creators: name: Boyd, R. N.
name: Rauscher, T.
name: Reitzner, S. D.
name: Vogel, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Lead perchlorate, part of the OMNIS supernova neutrino detector, contains two nuclei, 208Pb and 35Cl, that might be used to study nucleon decay. Both would produce signatures that will make them especially useful for studying less-well-studied neutron decay modes, e.g., those in which only neutrinos are emitted.
description: 6 pages, 2 figures
Selective oxidation of glycerol to dihydroxyacetone using CeO2-ZrO2-Bi2O3-SnO2-supported platinum catalysts
Creators: name: Naoyoshi Nunotani
name: Takashima, Masanari
name: Pil-Gyu Choi
name: Yeon-Bin Choi
name: Nobuhito Imanaka
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: Plant Biology

description: The effects of the Bi3+ introduction and the oxygen release and storage abilities on selective oxidation of glycerol into dihydroxyacetone (DHA) were demonstrated using Pt/CeO2-ZrO2-Bi2O3-SnO2/SBA-16 (SBA-16: Santa Barbara Amorphous No. 16) catalysts. By introducing Bi3+ or Sn4+/2+ ions into the CeO2-ZrO2 promoter, the oxygen release and storage abilities were enhanced, which led to increased glycerol conversion. The improvement in the DHA yield was affected by the introduction of Bi3+, which might accelerate selective oxidation of a secondary hydroxy group in glycerol caused by the geometric effect. The highest activity was obtained for Pt/Ce0.64Zr0.16Bi0.15Sn0.05O2−δ/SBA-16, which showed high oxygen release and storage abilities and a high number of Bi3+ ions, with the DHA yield increasing to 53% and high rates of glycerol conversion (74%) and DHA selectivity (72%) after reaction at a moderate temperature of 30 °C for 4 h in atmospheric air.
Dynamical effects in multifragmentation at intermediate energies
Creators: name: Colin, J.
name: Cussol, D.
name: Normand, J.
name: Bellaize, N.
name: Borderie, B.
name: Bougault, R.
name: Bouriquet, B.
name: Buta, A. M.
name: Charvet, J. L.
name: Chbihi, A.
name: Dayras, R.
name: Durand, D.
name: Frankland, J. D.
name: Galichet, E.
name: Guinet, D.
name: Guiot, B.
name: Hudan, S.
name: Lautesse, P.
name: Lavaud, F.
name: Neindre, N. Le
name: Lopez, O.
name: Manduci, L.
name: Marie, J.
name: Nalpas, L.
name: Parlog, M.
name: Pawlowski, P.
name: Plagnol, E.
name: Rivet, M. F.
name: Rosato, E.
name: Roy, R.
name: Steckmeyer, J. C.
name: Tamain, B.
name: Van Lauwe, A.
name: Vient, E.
name: Vigilante, M.
name: Volant, C.
name: Wieleczko, J. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The fragmentation of the quasi-projectile is studied with the INDRA multidetector for different colliding systems and incident energies in the Fermi energy range. Different experimental observations show that a large part of the fragmentation is not compatible with the statistical fragmentation of a fully equilibrated nucleus. The study of internal correlations is a powerful tool, especially to evidence entrance channel effects. These effects have to be included in the theoretical descriptions of nuclear multifragmentation.
description: 13 pages, 26 figures, submitted to Physical Review C
Preparation of colloidal hydrated alumina modified NaA zeolite derived from rice husk ash for effective removal of fluoride ions from water medium
Creators: name: Naskar, Milan Kanti
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: Alumina is found to be a good adsorbent for the removal of fluoride. In the present study, rice husk ash-derived NaA zeolite has been modified with colloidal hydrated alumina in a cost-effective process for efficient removal of fluoride ions. The prepared NaA zeolite powder was added into colloidal hydrated alumina under stirring at 70°C/2 h followed by drying at 100°C/6 h to obtain modified zeolite. The product reveals enhanced adsorption efficiency (95–99%) for the removal of fluoride ions at wide ranges of adsorbate concentration (~5–200 mg/L), adsorbent concentration (0.5–10 g/L), pH (3–10), and temperature (30–70°C). Regeneration study shows that adsorption remained >90% up to third cycle followed by gradual decrease of adsorption for consecutive cycles. Kinetics study of fluoride adsorptions shows best fit for pseudo-second-order model demonstrating chemisorption process through a monolayer formation. The adsorption isotherm reveals that Langmuir isotherm is the best fit model indicating maximum adsorption capacities of 104.16, 68.12 and 36.13 mg/g for the adsorbent doses of 0.5, 1 and 2 g/L, respectively. Colloidal hydrated alumina modified NaA zeolite derived from rice husk ash could be utilized as low cost adsorbent for effective removal of fluoride ions from water.
Duality in the dynamics of Unruh-DeWitt detectors in conformally related spacetimes
Creators: name: Hotta, Masahiro
name: Kempf, Achim
name: Martín-Martínez, Eduardo
name: Tomitsuka, Takeshi
name: Yamaguchi, Koji
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We prove a nonperturbative duality concerning the dynamics of harmonic-oscillator-type Unruh-DeWitt detectors in curved spacetimes. Concretely, using the Takagi transformation we show that the action of a harmonic oscillator Unruh-DeWitt detector with one frequency in a spacetime is equal to that of a detector with a different frequency in a conformally related spacetime. As an example, we show that the dynamics of simple stationary detectors in flat spacetime is dual to that of detectors in a cosmological scenario. The nonperturbative duality enables us to investigate entanglement harvesting in new scenarios in curved spacetime by using results obtained in simpler, conformally related spacetimes.
description: 10 pages, 2 figures
Discrimination training with positive and negative reinforcement surmounts reciprocal inhibition in appetitive-aversive interactions
Creators: name: Weissman, Richard Douglas
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 52
subject: Psychology
subject: FOS: Psychology

description: In a stimulus-compounding test, separately trained discriminative stimuli ($\rm S\sp{D}s$) are presented singly and simultaneously. If more total test responses occur to compound than to single presentations, the result is called additive summation. Weiss and Schindler (1989) compounded $\rm S\sp{D}s$ after training one in a food schedule and the other in a shock-postponement schedule. Such crosspolar training resulted in the compound and single presentations controlling similar response quantities. This nonadditive outcome supports an extension of Konorski's (1967) characterization of heterogeneous (appetitive and defensive) reflexes as reciprocally inhibiting to discriminative operant behavior. The present experiment tested whether reciprocal inhibition in discriminative operant behavior could be attenuated by operating food and shock avoidance schedules in the same $\rm S\sp{D}s$. This bipolar training was conducted in conjoint or mixed schedules of both food and shock avoidance that operated in tone and in light. In the absence of tone and light, extinction was in effect. A subsequent stimulus-compounding test revealed additive summation in the five bipolar-trained rats tested. When other rats received crosspolar training in separate tone and light $\rm S\sp{D}s$, with their absence controlling response cessation through suspension of reinforcement schedules, additive summation was not produced in the two rats tested. In Phase 2, the effectiveness of food $\rm\underline{or}$ shock postponement (unipolar) schedules in tone and in light was assayed for the bipolar-trained rats. Where unipolar control was weak, remediation consisted of prolonged unipolar training, increased frequency of scheduled reinforcers, increased deprivation, and/or increased shock intensity. A subsequent stimulus compounding test reproduced additive summation. In Phase 3, bipolar and crosspolar training conditions were reversed. Subsequent stimulus-compounding tests revealed little or no additive summation for rats switched from crosspolar to bipolar and a small additive summation for a single rat switched from bipolar to crosspolar. In Phase 4, the original baseline schedules were restored and a subsequent stimulus-compounding test reproduced additive summation for bipolar-trained rats. These results demonstrated that discriminative operant reciprocal inhibition can be surmounted through bipolar training and that initial reinforcement class affected training duration and total test output in opposite ways during bipolar and crosspolar training.
Comment on "Quantum Time Crystals and Interacting Gauge Theories in Atomic Bose-Einstein Condensates"
Creators: name: Syrwid, Andrzej
name: Kosior, Arkadiusz
name: Sacha, Krzysztof
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a recent letter [Phys. Rev. Lett. 123, 250402], Öhberg and Wright describe a Bose-Einstein condensate trapped on a ring in the presence of the density-dependent gauge potential. It is claimed that the ground state of the system corresponds to a rotating chiral bright soliton and consequently it forms a genuine time crystal which minimizes its energy by performing periodic motion. We show that the energy of the chiral soliton in the laboratory frame is not correctly calculated in the letter. The correct energy becomes minimal if the soliton does not move.
description: 1 page; Comment on Phys. Rev. Lett. 123, 250402 (version accepted for publication in Phys. Rev. Lett.)
Discrimination training with positive and negative reinforcement surmounts reciprocal inhibition in appetitive-aversive interactions
Creators: name: Weissman, Richard Douglas
Publisher: name: American University
Year: 2023

description: In a stimulus-compounding test, separately trained discriminative stimuli ($\rm S\sp{D}s$) are presented singly and simultaneously. If more total test responses occur to compound than to single presentations, the result is called additive summation. Weiss and Schindler (1989) compounded $\rm S\sp{D}s$ after training one in a food schedule and the other in a shock-postponement schedule. Such crosspolar training resulted in the compound and single presentations controlling similar response quantities. This nonadditive outcome supports an extension of Konorski's (1967) characterization of heterogeneous (appetitive and defensive) reflexes as reciprocally inhibiting to discriminative operant behavior. The present experiment tested whether reciprocal inhibition in discriminative operant behavior could be attenuated by operating food and shock avoidance schedules in the same $\rm S\sp{D}s$. This bipolar training was conducted in conjoint or mixed schedules of both food and shock avoidance that operated in tone and in light. In the absence of tone and light, extinction was in effect. A subsequent stimulus-compounding test revealed additive summation in the five bipolar-trained rats tested. When other rats received crosspolar training in separate tone and light $\rm S\sp{D}s$, with their absence controlling response cessation through suspension of reinforcement schedules, additive summation was not produced in the two rats tested. In Phase 2, the effectiveness of food $\rm\underline{or}$ shock postponement (unipolar) schedules in tone and in light was assayed for the bipolar-trained rats. Where unipolar control was weak, remediation consisted of prolonged unipolar training, increased frequency of scheduled reinforcers, increased deprivation, and/or increased shock intensity. A subsequent stimulus compounding test reproduced additive summation. In Phase 3, bipolar and crosspolar training conditions were reversed. Subsequent stimulus-compounding tests revealed little or no additive summation for rats switched from crosspolar to bipolar and a small additive summation for a single rat switched from bipolar to crosspolar. In Phase 4, the original baseline schedules were restored and a subsequent stimulus-compounding test reproduced additive summation for bipolar-trained rats. These results demonstrated that discriminative operant reciprocal inhibition can be surmounted through bipolar training and that initial reinforcement class affected training duration and total test output in opposite ways during bipolar and crosspolar training.
BMS Symmetry of Celestial OPE
Creators: name: Banerjee, Shamik
name: Ghosh, Sudip
name: Gonzo, Riccardo
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we study the BMS symmetry of the celestial OPE of two positive helicity gravitons in Einstein theory in four dimensions. The celestial OPE is obtained by Mellin transforming the scattering amplitude in the (holomorphic) collinear limit. The collinear limit at leading order gives the singular term of the celestial OPE. We compute the first subleading correction to the OPE by analysing the four graviton scattering amplitude directly in Mellin space. The subleading term can be written as a linear combination of BMS descendants with the OPE coefficients determined by BMS algebra and the coefficient of the leading term in the OPE. This can be done by defining a suitable BMS primary state. We find that among the descendants, which appear at the first subleading order, there is one which is created by holomorphic supertranslation with simple pole on the celestial sphere.
description: 20 pages, Latex, Minor revision and cosmetic changes, Published Version
Additional file 1 of Transcriptional response of mar, sox and rob regulon against concentration gradient carbapenem stress within Escherichia coli isolated from hospital acquired infection
Creators: name: Chetri, Shiela
name: Das, Bhaskar Jyoti
name: Bhowmik, Deepshikha
name: Debadatta Dhar Chanda
name: Atanu Chakravarty
name: Amitabha Bhattacharjee
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. MIC and transcriptional study details of the test isolates. Table S2. Primers used for PCR and Real time PCR. Table S3. Primers used for cloning. Table S4. Carbapenem susceptibility and MIC results of clones.
Remapping of visual space in primate frontal eye field
Creators: name: Umeno, Marc Michiki
Publisher: name: American University
Year: 2023

description: Primates can make accurate sequential saccades to rapidly flashed targets despite, in the case of an intervening saccade, dissonance between the retinal location of a target and the vector of the saccade necessary to acquire that target. The saccadic system must therefore be able to plan and execute trajectories incorporating the metric of the intervening saccade. When shown stimuli that will be brought into their visual receptive fields by a saccade, 33% of visually responsive neurons in the frontal eye fields (FEF) produce predictive responses: they fire before the stimuli reach their visual receptive fields. Also, when shown stimuli that have recently vanished, a majority (59%) of these FEF visually responsive neurons carry a short term memory trace of the recently vanished stimuli when the locations of these stimuli are brought into their receptive fields. This group of neurons also has an intertrial memory trace associated with the spatial location of stimuli, in recent trials, which have been shown in the receptive field of the neurons. These neurons are used by the FEF to account for dynamic motor situations by remapping the visual world through neuronal mechanisms.
New mechanism for the top-bottom mass hierarchy
Creators: name: Hashimoto, Michio
name: Kanemura, Shinya
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose a mechanism to generate hierarchy between masses of the top and bottom quarks without fine tuning of the Yukawa coupling constants in the context of the two Higgs doublet model (THDM). In the THDM with a discrete symmetry, there exists the vacuum where only the top quark receives the mass of the order of the electroweak symmetry breaking scale $v(\simeq 246 GeV)$, while the bottom quark remains massless. By introducing a small soft-breaking parameter $m_3^2$ of the discrete symmetry, the bottom quark perturbatively acquires a nonzero mass. We show a model in which the small $m_3^2 [\sim v^2/(4π)^2]$ is generated by the dynamics above the cutoff scale of the THDM. The ratio $\tanβ$ of the two vacuum expectation values is necessarily very large; i.e., $\tan β\sim m_t/m_b$. We also find a salient relation, $1/\tanβ\simeq m_3^2/m_H^2$, where $m_H$ is the mass of the extra CP-even Higgs boson. Our scenario yields some specific features that can be tested in future collider experiments.
description: 5 pages, 3 figures, Version accepted for publication in Physical Review D
Deep Slow Motion Video Reconstruction with Hybrid Imaging System
Creators: name: Paliwal, Avinash
name: Kalantari, Nima Khademi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: Slow motion videos are becoming increasingly popular, but capturing high-resolution videos at extremely high frame rates requires professional high-speed cameras. To mitigate this problem, current techniques increase the frame rate of standard videos through frame interpolation by assuming linear object motion which is not valid in challenging cases. In this paper, we address this problem using two video streams as input; an auxiliary video with high frame rate and low spatial resolution, providing temporal information, in addition to the standard main video with low frame rate and high spatial resolution. We propose a two-stage deep learning system consisting of alignment and appearance estimation that reconstructs high resolution slow motion video from the hybrid video input. For alignment, we propose to compute flows between the missing frame and two existing frames of the main video by utilizing the content of the auxiliary video frames. For appearance estimation, we propose to combine the warped and auxiliary frames using a context and occlusion aware network. We train our model on synthetically generated hybrid videos and show high-quality results on a variety of test scenes. To demonstrate practicality, we show the performance of our system on two real dual camera setups with small baseline.
description: IEEE TPAMI and ICCP 2020. Project page containing code and video at http://faculty.cs.tamu.edu/nimak/Papers/ICCP2020_Slomo
Development of a laser-driven ultrasonic technology for characterizations of heated and aged concrete samples
Creators: name: Yamada, Tomonori
name: Daido, Hiroyuki
name: Shibata, Takuya
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: We have demonstrated a full noncontact laser technology to measure the velocity of ultrasonic waves and their spectra propagated through concrete samples exposed to specified high-temperature conditions with specified durations as models of concrete structures in a severe accident at the Fukushima Daiichi Nuclear Power Station. The velocities and spectra of the ultrasonic waves were strongly dependent on the exposed temperature, i.e. at a high-temperature condition of 400°C, the velocity was 3700 m/s, and at room temperature, the velocity was 5000 m/s. Experimental results are almost comparable to those obtained by the contact ultrasonic technique.