cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
One-Stage Cascade Refinement Networks for Infrared Small Target Detection
Creators: name: Dai, Yimian
name: Li, Xiang
name: Zhou, Fei
name: Qian, Yulei
name: Chen, Yaohong
name: Yang, Jian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Single-frame InfraRed Small Target (SIRST) detection has been a challenging task due to a lack of inherent characteristics, imprecise bounding box regression, a scarcity of real-world datasets, and sensitive localization evaluation. In this paper, we propose a comprehensive solution to these challenges. First, we find that the existing anchor-free label assignment method is prone to mislabeling small targets as background, leading to their omission by detectors. To overcome this issue, we propose an all-scale pseudo-box-based label assignment scheme that relaxes the constraints on scale and decouples the spatial assignment from the size of the ground-truth target. Second, motivated by the structured prior of feature pyramids, we introduce the one-stage cascade refinement network (OSCAR), which uses the high-level head as soft proposals for the low-level refinement head. This allows OSCAR to process the same target in a cascade coarse-to-fine manner. Finally, we present a new research benchmark for infrared small target detection, consisting of the SIRST-V2 dataset of real-world, high-resolution single-frame targets, the normalized contrast evaluation metric, and the DeepInfrared toolkit for detection. We conduct extensive ablation studies to evaluate the components of OSCAR and compare its performance to state-of-the-art model-driven and data-driven methods on the SIRST-V2 benchmark. Our results demonstrate that a top-down cascade refinement framework can improve the accuracy of infrared small target detection without sacrificing efficiency. The DeepInfrared toolkit, dataset, and trained models are available at https://github.com/YimianDai/open-deepinfrared to advance further research in this field.
description: Submitted to TGRS
BCS as Foundation and Inspiration: The Transmutation of Symmetry
Creators: name: Wilczek, Frank
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The BCS theory injected two powerful ideas into the collective consciousness of theoretical physics: pairing and spontaneous symmetry breaking. In the 50 years since the seminal work of Bardeen, Cooper, and Schrieffer, those ideas have found important use in areas quite remote from the stem application to metallic superconductivity. This is a brief and eclectic sketch of some highlights, emphasizing relatively recent developments in QCD and in the theory of quantum statistics, and including a few thoughts about future directions. A common theme is the importance of symmetry {\it transmutation}, as opposed to the simple {\it breaking} of electromagnetic $U(1)$ symmetry in classic metallic superconductors.
description: 25 pages, 4 figures. Contribution to "Fifty Years of Bardeen, Cooper, and Schrieffer'', to be published by World Scientific. Also to appear in IJMPB
SOURCES, CONSEQUENCES AND COPING STRATEGIES OF SPEAKING ANXIETY IN  EFL CLASSROOM: GUNNUNO PREPARATORY STUDENTS IN FOCUS
Creators: name: TESFAYE ZAWUGA
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Learning a language is a key and  system for communication, due to this it is evident that
communication skills a big part of learning a language. Every school today , to practice
speaking therefore a central part of English lessons .However , to make students speak the target
language is not always an easy way and there can be several different reasons why this is the
case . The current study investigates sources of speaking anxiety, its consequences up on
learners and coping strategies of the problem. The study used questionnaire, interview and
classroom observation to gather data. Speaking anxiety is considered as a key problem in every
school as it was tried to point out in the study .Speaking is seen as a problem concerning
language teaching since it can be considered as a common difficulty . As a result, speaking
anxious students have a harder time to achieve the goals of oral communication in the target
language than other students. In order to encourage speaking in a classroom, it is important to
strive a pleasant atmosphere in which  every student can feel relaxed and motivated to
communicate orally in English. Simple random sampling technique was implemented to carry
out the work. The design used for the study was descriptive survey design. Mixed research
approach was implemented to conduct the work,  that is the study was analyzed through
qualitative and quantitative methods. As it was found out from data, the major sources of
speaking anxiety are lack of motivation, interest and confidence, in general, fear of making
mistakes, fear of  tests and assessments, fear of competition, fear of negative evaluation and
perceived low ability and the like were the major sources in learning English as the foreign
language. Regarding consequences, Learners with debilitating speaking anxiety tend to display
avoidance of involvement in tasks by remaining silent, sitting in the back, avoiding their teachers
and the like as pointed out in results. The following are problems commonly related to students‟
speaking. Lack of active listening, lack of exposure and practicing, fear of making mistakes, lack
of group skills, hesitation, lack of confidence, fear of expression ,limited vocabulary , wrong
grammar , fluency problems and the like were pointed out in the result as the most common
problems in language classes. From the study, as the major coping strategies the following were
discussed. language teachers should develop much of responsibilities by critically evaluating
their own manners, ways of teaching, identifying needy students and using suitable treatments to
avoid social comparisons, promote cooperation instead of competition, and help learners to
accept the fact that they will make mistakes as part of the learning process , make tests and
assessment completely in clear manner and involve students in the time of the final grading and
provision of marks .
Challenges and Opportunities for Bioenergy in Europe: National Deployment, Policy Support, and Possible Future Roles
Creators: name: Wu, Fei
name: Pfenninger, Stefan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Bioenergy is currently a major renewable energy source in Europe but faces an unclear future because of conflicting modelling results and the lack of long-term policy. This paper identifies three challenges and potential opportunities by reviewing bioenergy historical national deployment, current policy support, and possible future roles in Europe. The first challenge is on the supply side. Analysing the supply-consumption dynamics and import dependency of EU bioenergy, we find that the security of bioenergy supply is challenging for liquid biofuels and those countries with the highest per-capita bioenergy consumption in Europe. Second, the definition of sustainable bioenergy in modelling studies is sometimes inconsistent with how EU policies label it. Third, on the demand side, there are unique but competing uses for bioenergy without a clear long-term strategy in Europe. We conclude with three opportunities to tackle these challenges for future research. First, utilising the untapped bioenergy potential with low environmental impacts could improve supply security. A clear and harmonised definition of sustainable bioenergy could better convey modelling results to policymaking. Finally, understanding where best to use limited sustainable bioenergy supply through sector-coupled energy system models can provide direction for a clearer EU bioenergy strategy towards 2050.
description: Under review
Climate change in Brazil: dealing with uncertainty in agricultural productivity models and the implications for economy-wide impacts
Creators: name: Souza, Bruno
name: Haddad, Eduardo
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Plant Biology

description: This paper estimates the economic impacts of climate change over the Brazilian regions until the end of the century. We estimate the direct and indirect impact of the projected changes in climate on the yield of the country’s main crops. The results point to a broad spatial heterogeneity of impacts across the country. Using the extreme scenarios created by the Intergovernmental Panel on Climate Change (IPCC) (RCP 2.6 and 8.5), our predictions indicate that the average annual losses due to climate change range from 0.4% to 1.8% of Brazilian gross domestic product until the end of the century.
title: ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð·Ð°Ð´Ð°ÑÐ¸ Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¸ÑÐºÑÐ¾Ð²Ð¾Ð³Ð¾ ÑÐ¿ÐµÐºÐ°Ð½Ð¸Ñ Ð¼ÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð² Ð² ÑÐµÑÐ¼Ð¾-ÑÐ»ÐµÐºÑÑÐ¾-Ð¼ÐµÑ Ð°Ð½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¿Ð¾ÑÑÐ°Ð½Ð¾Ð²ÐºÐµ Ñ ÑÑÑÑÐ¾Ð¼ Ð¿Ð¾Ð²ÐµÑÑ Ð½Ð¾ÑÑÐ½Ð¾Ð¹ Ð¸ Ð·ÐµÑÐ½Ð¾Ð³ÑÐ°Ð½Ð¸ÑÐ½Ð¾Ð¹ Ð´Ð¸ÑÑÑÐ·Ð¸Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Simulation of SPS of powders in TEM formulation with surface and GB diffusion
Creators: name: ÐÐ¾ÑÐ¸ÑÐµÐ½ÐºÐ¾, ÐÐ»Ð°Ð´Ð¸ÑÐ»Ð°Ð²
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: ÐÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² Ð¼ÐµÑÐ¾Ð´
ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
ÐÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð¾ÑÐ¾ÑÐºÐ¸
ÐÐ»Ð°Ð·Ð¼Ð° (ÑÐ¸Ð·.)
ÐÐ¸ÑÑÑÐ·Ð¸Ñ

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ñ ÐºÐ¾Ð½ÐµÑÐ½Ð¾-ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²ÑÐ·Ð°Ð½Ð½Ð¾Ð¹ Ð·Ð°Ð´Ð°ÑÐ¸ Ð¸ÑÐºÑÐ¾Ð²Ð¾Ð³Ð¾ Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐ¿ÐµÐºÐ°Ð½Ð¸Ñ Ð¼ÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ°ÑÑÐ¸Ñ. ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¾ÑÑÑÐµÑÑÐ²Ð»ÑÐ»Ð¾ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ ÐºÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² Ð² ÑÐµÑÐ¼Ð¾-ÑÐ»ÐµÐºÑÑÐ¾-Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¿Ð¾ÑÑÐ°Ð½Ð¾Ð²ÐºÐµ Ñ ÑÑÐµÑÐ¾Ð¼ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÑ Ð½Ð° Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÑÐ°Ð²Ð½Ð¸Ð²Ð°Ð»Ð¸ÑÑ Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐ¼Ð¸ Ð´Ð°Ð½Ð½ÑÐ¼Ð¸. ÐÑÐ»Ð° Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ð° Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¾ÑÐµÐ½ÐºÐ° Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð·ÐµÑÐ½Ð¾Ð³ÑÐ°Ð½Ð¸ÑÐ½Ð¾Ð¹ Ð¸ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ½Ð¾Ð¹ Ð´Ð¸ÑÑÑÐ·Ð¸Ð¸ Ð½Ð° Ð¿ÑÐ¾ÑÐµÑÑ ÑÐ¿ÐµÐºÐ°Ð½Ð¸Ñ.
description: This dissertation presents the basic principles of finite element modeling of the coupled problem of spark plasma sintering of metal particles. The simulation was carried out by the finite element method in thermo-electro-mechanical formulation with the temperature effect on the material parameters. The simulation results were compared with experimental data. An analytical assessment of the effect of grain boundary and surface diffusion on the sintering process was made.
$h\to gg$ and $h\toγγ$ with Anomalous Couplings at Next-to-Leading Order in QCD
Creators: name: Buchalla, Gerhard
name: Höfer, Marius
name: Müller-Salditt, Christoph
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We generalize the next-to-leading order QCD calculations for the decay rates of $h\to gg$ and $h\toγγ$ to the case of anomalous couplings of the Higgs boson. We demonstrate how this computation can be done in a consistent way within the framework of an electroweak chiral Lagrangian, based on a systematic power counting. It turns out that no additional coupling parameters arise at NLO in QCD beyond those already present at leading order. The impact of QCD is large for $h\to gg$ and the uncertainties from QCD are significantly reduced at NLO. $h\toγγ$ is only mildly affected by QCD; here the NLO treatment practically eliminates the uncertainties. Consequently, our results will allow for an improved determination of anomalous Higgs couplings from these processes. The relation of our framework to a treatment in Standard Model effective field theory is also discussed.
description: Additional references included. 41 pages, 11 figures, 8 Tables
High energy scattering in gravity and supergravity
Creators: name: Giddings, Steven B.
name: Schmidt-Sommerfeld, Maximilian
name: Andersen, Jeppe R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate features of perturbative gravity and supergravity by studying scattering in the ultraplanckian limit, and sharpen arguments that the dynamics is governed by long-distance physics. A simple example capturing aspects of the eikonal resummation suggests why short distance phenomena and in particular divergences or nonrenormalizability do not necessarily play a central role in this regime. A more profound problem is apparently unitarity. These considerations can be illustrated by showing that known gravity and supergravity amplitudes have the same long-distance behavior, despite the extra light states of supergravity, and this serves as an important check on long-range dynamics in a context where perturbative amplitudes are finite. We also argue that these considerations have other important implications: they obstruct probing the conjectured phenomenon of asymptotic safety through a physical scattering process, and ultraplanckian scattering exhibiting Regge behavior. These arguments sharpen the need to find a nonperturbative completion of gravity with mechanisms which restore unitarity in the strong gravity regime.
description: 26 pages, 7 figures, harvmac. v2: added refs; clarified Regge discussion
Estimating global charge violating amplitudes from wormholes
Creators: name: Bah, Ibrahima
name: Chen, Yiming
name: Maldacena, Juan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the scattering of high energy and ultra relativistic spherically symmetric shells in asymptotically AdS$_D$ spacetimes. We analyze an exclusive amplitude where a single spherically symmetric shell goes in and a single one comes out, such that the two have different global symmetry charges of the effective gravity theory. We study a simple wormhole configuration that computes the square of the amplitude and analyze its properties.
description: 15 pages + appendices, additional citations in v2
THEEFFECT OF  AUTHENTIC LISTENING MATERIALS ON STUDENTS’  LISTENING PERFORMANCE AND ATTITUDE    IN EFL CLASSES: THE CASE  OF GRADE 9 STUDENTS AT LASKA SECONDARY AND PREPARTORE  SCHOOL.
Creators: name: AMARE TESHOME
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The present study investigated the effect of authentic listening materials on Laska secondary
and preparatory school grade nine students‟ listening performance and attitude towards
learning listening skill in EFL classes. Experimental research design was used in this study.
The random sampling method was used to select 60 grade nine participants from Laska
secondary and preparatory school.  Each group consisted of 30 students. Data were collected
using test and questionnaire. Before starting the treatment, similar listening test were given
for them as a pretest to check their listening performance. At the end of the treatment,
attitude questionnaire was distributed and post  listening test was given both groups. The
analysis of the quantitative data was made using SPPS. Analysis of Independent sample t-test
showed no significant difference  between two groups at pre-intervention stages. But a 2-
tailed Independent sample t-test at post t showed significant difference between two groups.
This revealed that there was a significant difference in the mean scores of students‟ learning
test results in favor of the experimental group. Correspondingly, 2-tailed paired sample t-test
for mean difference between experimental group pre and post-intervention attitude showed
that they had similar attitude toward learning listening skill in EFL class before and after
intervention with an average that nearly equals agree (3.96). So, English language teacher
should use different authentic materials to enhance the students‟ attitude towards to listening
skill and listening performance.  7747
Sharing the burden: quantifying climate change spillovers in the European Union under the Paris Agreement
Creators: name: Schleypen, Jessie Ruth
name: Mistry, Malcolm N.
name: Saeed, Fahad
name: Dasgupta, Shouro
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Plant Biology
subject: FOS: Biological sciences

description: Climate change has emerged as a growing threat to the European economy, whose economic losses are relevant for global growth. Rising temperatures and worsening extreme events are expected to affect climate-vulnerable sectors. Due to the economic integration within the European Union (EU), these impacts will likely have spillover effects and feedback loops to and from other regions. This study uses spatial econometrics to account for the interdependencies between the subnational EU regions to estimate the future impacts of changes in temperature on sectoral labour productivity under the Paris Agreement. The study confirms the presence of spatial spillover effects of climate change, and finds that observations at the economy-wide level of a non-linear, concave and single-peaked relationship between temperature and productivity do not always hold true at the sectoral level.
Capsulated essential oil in gel spheres for the protection of cellulosic cultural heritage
Creators: name: L. Campanella
name: R. Angeloni
name: F. Cibin
name: E. Dell’Aglio
name: F. Grimaldi
name: R. Reale
name: M. Vitali
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: In this paper we present a possible application of cinnamon essential oil to be encapsulated into gel drops of psyllium and of psyllium-alginate mixtures and to be released by the beads. It could act as green biocide for the protection of antique books, old documents and, generally, of any cellulosic material (paper, wood, textiles) object of cultural interest from biological attack. The components of the cinnamon essential oil, released by alginate, psyllium-alginate and purified psyllium-alginate beads, were determined by GC-MS analysis. Moreover, an evaluation of the cinnamon essential oil release during the time was carried out by in time HS-SPME-GS-MS so to obtain in time semi-quantitative information about the emitted gaseous species. Last by, in order to confirm the ability of the beads to perform an antimicrobial action, respirometric tests were carried out on Saccharomyces cerevisiae yeast cells looking at the reduction of their breathing activity, when in presence of the above beads.
A novel method for searching the $Ξ_c^{0/+}$-$Ξ_c^{\prime 0/+}$ mixing effect in the angular distribution analysis of a four-body $Ξ_c^{0/+}$ decay
Creators: name: Xing, Zhi Peng
name: Shi, Yu ji
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we raised a novel method for searching the $Ξ^{0+}_c$-$Ξ_c^{0+\prime}$ mixing effect in an angular distribution analysis of the $Ξ_c\toΞ^{(\prime)}(Λπ)\ell^+ν$ decay, where the mixing effect can be observed by the appearance of the $Ξ^{\prime}$ resonant. Armed with this angular distribution, the decay branching fraction and the forward-backward asymmetry are predicted. We pointed out that the forward-backward asymmetry, as a function of the invariant mass square of $Ξ^{(\prime)}$ and the $Ξ^{0+}_c$-$Ξ_c^{0+\prime}$ mixing angle $θ_c$, can be used to distinguish the two resonants $Ξ^{(\prime)}$ and even provide a possibility to determine the exact mixing angle.
description: 7 pages, 3 figures
Parameters of the best approximation of reduced neutron widths distribution. Actinides
Creators: name: Sukhovoj, A. M.
name: Khitrov, V. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The data of ENDF/B-VII library on reduced neutron widths for nuclei 231Pa, 232Th, 233,234,235,236,238U, 237Np, 239,240,241,242Pu, 241,243Am and 243Cm (including p-resonances of 232Th, 238U, 239Pu) in form of cumulative sums in function on Gamma0n/ were approximated by variable number K of partial items 0
description: 9 pages,5 figures
Excitation of Meinel and first negative band system at the collision of electron and proton with nitrogen molecule
Creators: name: Gochitashvili, Malkhaz R.
name: Kezerashvili, Roman Ya.
name: Lomsadze, Ramaz A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: Absolute cross sections for the $e-$N$_{2}$ and $p-$N$_{2}$ collisions for the first negative B$^{2}Σ_{u}^{+}-$X$^{2}Σ_{g}^{+}$ and Meinel A% $^{2}Π_{u}-$X$^{2}Σ_{g}^{+}$ bands have been measured in the energy region of 400-1500 eV for electrons and 0.4-10 keV for protons, respectively. Measurements are performed in the visible spectral region of 400-800 nm by an optical spectroscopy method. The ratio of the cross sections of the Meinel band system to the cross section of the first negative band system (0,0) does not depend on the incident electron energy. The population of vibrational levels corresponding to A$^{2}Π_{u}$ states are consistent with Franck-Condon principle. The ratio of the cross sections of (4,1) to (3,0) bands, and (5,2) to (3,0) bands exhibits slight dependence on the proton energy. The theoretical estimation within the quasimolecular approximation provides a reasonable description of the total cross section for the first negative band.
Information Bottleneck-Inspired Type Based Multiple Access for Remote Estimation in IoT Systems
Creators: name: Zhu, Meiyi
name: Feng, Chunyan
name: Guo, Caili
name: Jiang, Nan
name: Simeone, Osvaldo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Information Theory (cs.IT)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Type-based multiple access (TBMA) is a semantics-aware multiple access protocol for remote inference. In TBMA, codewords are reused across transmitting sensors, with each codeword being assigned to a different observation value. Existing TBMA protocols are based on fixed shared codebooks and on conventional maximum-likelihood or Bayesian decoders, which require knowledge of the distributions of observations and channels. In this letter, we propose a novel design principle for TBMA based on the information bottleneck (IB). In the proposed IB-TBMA protocol, the shared codebook is jointly optimized with a decoder based on artificial neural networks (ANNs), so as to adapt to source, observations, and channel statistics based on data only. We also introduce the Compressed IB-TBMA (CIB-TBMA) protocol, which improves IB-TBMA by enabling a reduction in the number of codewords via an IB-inspired clustering phase. Numerical results demonstrate the importance of a joint design of codebook and neural decoder, and validate the benefits of codebook compression.
description: 5 pages, 3 figures, accepted by IEEE Signal Processing Letters (SPL)
Bandgap engineering of zigzag graphene nanoribbons by manipulating edge states via defective boundaries
Creators: name: Zhang, Aihua
name: Wu, Yihong
name: Ke, San-Huang
name: Feng, Yuan Ping
name: Zhang, Chun
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: One of severe limits of graphene nanoribbons (GNRs) in future applications is that zigzag GNRs (ZGNRs) are gapless, so cannot be used in field effect transistors (FETs). In this paper, using tight-binding approach and first principles method, we derived and proved a general edge (boundary) condition for the opening of a significant bandgap in ZGNRs with defective edge structures. The proposed semiconducting GNRs have some interesting properties including the one that they can be embedded and integrated in a large piece of graphene without the need of completely cutting them out. We also demonstrated a new type of high-performance all-ZGNR FET.
A Robust Data-Driven Model for Flapping Aerodynamics under different hovering kinematics
Creators: name: Calado, Andre
name: Poletti, Romain
name: Koloszar, Lilla K.
name: Mendez, Miguel A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Flapping Wing Micro Air Vehicles (FWMAV) are highly manoeuvrable, bio-inspired drones that can assist in surveys and rescue missions. Flapping wings generate various unsteady lift enhancement mechanisms challenging the derivation of reduced models to predict instantaneous aerodynamic performance. In this work, we propose a robust CFD data-driven, quasi-steady (QS) Reduced Order Model (ROM) to predict the lift and drag coefficients within a flapping cycle. The model is derived for a rigid ellipsoid wing with different parameterized kinematics in hovering conditions. The proposed ROM is built via a two-stage regression. The first stage, defined as `in-cycle' (IC), computes the parameters of a regression linking the aerodynamic coefficients to the instantaneous wing state. The second stage, `out-of-cycle' (OOC), links the IC weights to the flapping features that define the flapping motion. The training and test dataset were generated via high-fidelity simulations using the overset method, spanning a wide range of Reynolds numbers and flapping kinematics. The two-stage regressor combines Ridge regression and Gaussian Process (GP) regression to provide estimates of the model uncertainties. The proposed ROM shows accurate aerodynamic predictions for widely varying kinematics. The model performs best for smooth kinematics that generate a stable Leading Edge Vortex (LEV). Remarkably accurate predictions are also observed in dynamic scenarios where the LEV is partially shed, the non-circulatory forces are considerable, and the wing encounters its own wake.
description: submitted to Physics of Fluids
First-principles prediction of spin-density-reflection symmetry driven magnetic transition of CsCl-type FeSe
Creators: name: Rahman, Gul
name: Kim, In Gee
name: Freeman, Arthur J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Based on results of density functional theory (DFT) calculations with the local spin density approximation (LSDA) and the generalized gradient approximation (GGA), we propose a new magnetic material, CsCl-type FeSe. The calculations reveal the existence of ferromagnetic (FM) and antiferromagnetic (AFM) states over a wide range of lattice constants. At 3.12\,Å in the GGA, the equilibrium state is found to be AFM with a local Fe magnetic moment of $\pm 2.69\,μ_\mathrm{B}$. A metastable FM state with Fe and Se local magnetic moments of $2.00\,μ_\mathrm{B}$ and $-0.032\,μ_\mathrm{B}$, respectively, lies 171.7\,{meV} above the AFM state. Its equilibrium lattice constant is $\sim 2$\,{\%} smaller than that of the AFM state, implying that when the system undergoes a phase transition from the AFM state to the FM one, the transition is accompanied by volume contraction. Such an AFM-FM transition is attributed to spin-density $z$-reflection symmetry; the symmetry driven AFM-FM transition is not altered by spin-orbit coupling. The relative stability of different magnetic phases is discussed in terms of the local density of states. We find that CsCl-type FeSe is mechanically stable, but the magnetic states are expected to be brittle.
description: LaTeX,16 pages, 6 figures
Store sales evaluation and prediction using spatial panel data models of sales components
Creators: name: Hunneman, Auke
name: Elhorst, J. Paul
name: Bijmolt, Tammo H. A.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: Plant Biology

description: This paper sets out a general framework for store sales evaluation and prediction. The sales of a retail chain with multiple stores are first decomposed into five components, and then each component is explained by store, competitor and consumer characteristics using random effects models for components observable at the store level and spatial error random effects models for components observable at the zip code level. We use spatial panel data over four years for estimation and a subsequent year for evaluating one-year-ahead predictions. Set against a benchmark model that explains total sales directly, the prediction error of our framework is reduced by 34% for existing stores during the sample period, by 5% for existing stores one year ahead and by 26% for new stores.
Global Monopoles in the Extended Gauss-Bonnet Gravity
Creators: name: Chatzifotis, Nikos
name: Mavromatos, Nick E.
name: Theodosopoulos, Dionysios P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss self-gravitating global O(3) monopole solutions associated with the spontaneous breaking of O(3) down to a global O(2) in an extended Gauss Bonnet theory of gravity in (3+1)-dimensions, in the presence of a non-trivial scalar field $Φ$ that couples to the Gauss-Bonnet higher curvature combination with a coupling parameter $α$. We obtain a range of values for $α< 0$ (in our notation and conventions), which are such that a global (Israel type) matching is possible of the space time exterior to the monopole core $δ$ with a de-Sitter interior, guaranteeing the positivity of the ADM mass of the monopole, which, together with a positive core radius $δ> 0$, are both dynamically determined as a result of this matching. It should be stressed that in the General Relativity (GR) limit, where $α\to 0$, and $Φ\to $ constant, such a matching yields a negative ADM monopole mass, which might be related to the stability issues the (Barriola-Vilenkin (BV)) global monopole of GR faces. Thus, our global monopole solution, which shares many features with the BV monopole, such as an asymptotic-space-time deficit angle, of potential phenomenological/cosmological interest, but has, par contrast, a positive ADM mass, has a chance of being a stable configuration, although a detailed stability analysis is pending.
description: 13 pages, numerical analysis on the solution added in new section IV, further phenomenological discussion added in conclusions and outlook section. No effect on conclusions. Version accepted for publication in Phys. Rev. D
AN  EXPLORATION  OF  STUDENTS’  READING  ABILITY  AND  THEIR  MOTIVATION TO READ: GRADE 10 STUDENTS’ IN FOCUS
Creators: name: BIZUNESH MEGALA
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2011

description: The aim of this study was to examine students’  reading ability and their motivation  to read. It
was  affected by internal and external factors. Motivation is theoretical concept used to explain
the initiation, direction, intensity and persistence of behavior. The study was conducted in grade
10 Jinka secondary school. These schools were selected by using lottery  sampling techniques,
the research takes consists of 160 students. To show the method of  the research used descriptive
case-study method. The instruments used in this study are questionnaires and test. It was found
that Students’    reading ability  and their motivation to read in  Jinka high school students showed
that reading competence in  foreign language was below half in the passage part of the test .This
could  be  due  to  students’  poor  reading  ability  in  the  classroom  which  might  result  different
factors. Such as, cultural background of students, lack of motivation, Shortage of text books, lack
of interest in reading and efficient method of teaching. Finally, based on the above findings, the
following recommendations were forwarded.  Motivation is the most essential factors that  have  a
direct  impact  on  the  development  of  reading  ability.  English  Language  teachers  need  to  use
mixed ability grouping and provide students with the support they need to focus on the main idea
of the text as well as the words and structure of the text. The classroom teacher ought to orient
motivate, encourage, give reward, praise the students that develop confidence in the minds of his
learners and this in return maximize the students participation reading classes.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐ¸ÑÑÐµÐ¼Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ°Ð·Ð±Ð¸ÐµÐ½Ð¸Ñ Ð½Ð¾Ð²Ð¾ÑÑÐ½Ð¾Ð³Ð¾ Ð¿Ð¾ÑÐ¾ÐºÐ° Ð½Ð° ÑÑÐ¶ÐµÑÑ Ñ Ð¾ÑÑÐ»ÐµÐ¶Ð¸Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¸Ñ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Development of the system for automatic detection of topics and events in news with tracking their evolution
Creators: name: Ð¢ÑÑÐµÐ½ÐºÐ¾, ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÐÐ½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½ÑÐµ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸
ÐÐ½ÑÐµÑÐ½ÐµÑ
ÐÐ½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ñ
Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½ÑÐµ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸
Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ° ÐµÑÑÐµÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐ·ÑÐºÐ°
ÐºÐ»Ð°ÑÑÐµÑÐ¸Ð·Ð°ÑÐ¸Ñ Ð½Ð¾Ð²Ð¾ÑÑÐµÐ¹
Ð³ÑÐ°Ñ ÑÐ²Ð¾Ð»ÑÑÐ¸Ð¸ ÑÐ¾Ð±ÑÑÐ¸Ð¹

description: ÐÐ°Ð³Ð¸ÑÑÐµÑÑÐºÐ°Ñ Ð´Ð¸ÑÑÐµÑÑÐ°ÑÐ¸Ñ Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ ÑÐ¸ÑÑÐµÐ¼Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ°Ð·Ð±Ð¸ÐµÐ½Ð¸Ñ Ð½Ð¾Ð²Ð¾ÑÑÐ½Ð¾Ð³Ð¾ Ð¿Ð¾ÑÐ¾ÐºÐ° Ð½Ð° ÑÑÐ¶ÐµÑÑ Ñ Ð¾ÑÑÐ»ÐµÐ¶Ð¸Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¸Ñ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð¾Ð±Ð·Ð¾Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð², Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÐµÐ¼ÑÑ Ðº Ð·Ð°Ð´Ð°ÑÐµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð¾Ð»ÑÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ð¹ Ð¼ÐµÐ¶Ð´Ñ ÑÐ¾Ð±ÑÑÐ¸ÑÐ¼Ð¸. Ð ÑÐ¾Ð´Ðµ ÑÐ°Ð±Ð¾ÑÑ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð° Ð°ÑÑÐ¸ÑÐµÐºÑÑÑÐ° ÑÐ¸ÑÑÐµÐ¼Ñ, Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð° Ð¸Ð¼Ð¿Ð»ÐµÐ¼ÐµÐ½ÑÐ°ÑÐ¸Ñ ÐµÐµ Ð¼Ð¾Ð´ÑÐ»ÐµÐ¹ Ð¸ Ð¸Ñ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ. Ð Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ¸Ñ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½ÑÐ°Ñ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ñ, Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ñ Ð¸ Ð´ÐµÑÐ°Ð»ÑÐ½Ð¾ Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ñ: Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ ÐºÐ»Ð°ÑÑÐµÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð½Ð¾Ð²Ð¾ÑÑÐµÐ¹ Ð² ÑÐ¾Ð±ÑÑÐ¸Ñ Ð¸ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ Ð¾Ð±Ð½Ð°ÑÑÐ¶ÐµÐ½Ð¸Ñ Ð²Ð·Ð°Ð¸Ð¼Ð¾ÑÐ²ÑÐ·ÐµÐ¹ Ð¼ÐµÐ¶Ð´Ñ ÑÐ¾Ð±ÑÑÐ¸ÑÐ¼Ð¸. Ð­ÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ, Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¸ÑÐµÑÐºÐ°Ñ Ð½Ð°ÑÑÑÐ¾Ð¹ÐºÐ° Ð¸ ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¿ÑÐ¾Ð²Ð¾Ð´ÑÑÑÑ Ð½Ð° ÑÐµÐ°Ð»ÑÐ½ÑÑ Ð´Ð°Ð½Ð½ÑÑ Ð¸ Ð¿Ð¾Ð´ÑÐ²ÐµÑÐ¶Ð´Ð°ÑÑ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÑ Ð¸ ÑÐµÐ»ÐµÑÐ¾Ð¾Ð±ÑÐ°Ð·Ð½Ð¾ÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¾Ð¿Ð¸ÑÑÐ²Ð°ÐµÐ¼ÑÑ Ð² ÑÐ°Ð±Ð¾ÑÐµ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¿ÑÐ¸ ÑÐµÑÐµÐ½Ð¸Ð¸ Ð°Ð½Ð°Ð»Ð¾Ð³Ð¸ÑÐ½ÑÑ Ð·Ð°Ð´Ð°Ñ.
description: Masterâs thesis is devoted to the development of a system for automatically dividing the news flow into stories with tracking their development. The paper reviews methods applied to the problem of modeling evolutionary relationships between events. In the course of the work, the system architecture was proposed, the implementation of its modules and their interaction was implemented. The analytical components of the system are implemented and used: the algorithm for clustering news into events and the algorithm for detecting relationships between events. The described methods are experimentally investigated. Experiments, tuning and testing are carried out on real data. They confirm the possibility of using the methods described in the work when solving a problem.
Progress on the exploratory calculation of the rare Hyperon decay $Σ^+ \to p \ell^+ \ell^-$
Creators: name: Erben, Felix
name: Gülpers, Vera
name: Hansen, Maxwell T.
name: Hodgson, Raoul
name: Portelli, Antonin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The rare Hyperon decay $Σ^+ \to p \ell^+ \ell^-$ is an $s \to d$ flavour changing neutral current process, which is highly suppressed within the Standard Model, and is therefore sensitive to new physics. Due to recent improvements in experimental measurements of this decay, the Standard Model theory prediction must also be improved in order to identify any new physics in this channel. We present updates on our progress towards the first exploratory lattice calculation of the long-distance part of the form factors of this decay. This pilot calculation is performed on a 340 MeV pion mass ensemble using domain-wall fermions as part of the RBC-UKQCD collaboration.
Cold fronts and multi-temperature structures in the core of Abell 2052
Creators: name: de Plaa, J.
name: Werner, N.
name: Simionescu, A.
name: Kaastra, J. S.
name: Grange, Y. G.
name: Vink, Jacco
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The physics of the coolest phases in the hot Intra-Cluster Medium (ICM) of clusters of galaxies is yet to be fully unveiled. X-ray cavities blown by the central Active Galactic Nucleus (AGN) contain enough energy to heat the surrounding gas and stop cooling, but locally blobs or filaments of gas appear to be able to cool to low temperatures of 10^4 K. In X-rays, however, gas with temperatures lower than 0.5 keV is not observed. Using a deep XMM-Newton observation of the cluster of galaxies Abell 2052, we derive 2D maps of the temperature, entropy, and iron abundance in the core region. About 130 kpc South-West of the central galaxy, we discover a discontinuity in the surface brightness of the hot gas which is consistent with a cold front. Interestingly, the iron abundance jumps from ~0.75 to ~0.5 across the front. In a smaller region to the North-West of the central galaxy we find a relatively high contribution of cool 0.5 keV gas, but no X-ray emitting gas is detected below that temperature. However, the region appears to be associated with much cooler H-alpha filaments in the optical waveband. The elliptical shape of the cold front in the SW of the cluster suggests that the front is caused by sloshing of the hot gas in the clusters gravitational potential. This effect is probably an important mechanism to transport metals from the core region to the outer parts of the cluster. The smooth temperature profile across the sharp jump in the metalicity indicates the presence of heat conduction and the lack of mixing across the discontinuity. The cool blob of gas NW of the central galaxy was probably pushed away from the core and squeezed by the adjacent bubble, where it can cool efficiently and relatively undisturbed by the AGN. Shock induced mixing between the two phases may cause the 0.5 keV gas to cool non-radiatively and explain our non-detection of gas below 0.5 keV.
description: 11 pages, 9 figures, A&A, in press
Discovery of two novel hetero-tricyclic lead scaffolds as PDE5A inhibitor: virtual screening, molecular docking and pharmacophore modeling approach
Creators: name: Mali, Dipak Pralhad
name: Bhatia, Neela Manish
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Phosphodiesterase 5A enzyme has been the upcoming and promising target in hypertension management. In this research, reported 270 bioactive natural products having antihypertensive potential were selected and docked against PDE5A using vLife MDS 4.6 software. Based on docking score, π-stacking, H-bond and ionic interactions with PDE5A, 82 tricyclic compounds were selected for further study. Protein residue Gln817A was associated in H-boding, Leu804A in ionic interaction whereas Val782A and Phe820A were associated in π-stacking interaction with ligand. In silico docking studies resulted in discovery of oxygen containing naphthofuran and nitrogen and oxygen containing pyrano quinolizine tricyclic lead scaffolds as novel PDE5A inhibitors. Additionally, developed pharmacophore model suggested that one centre of hydrogen bond acceptor, one aromatic centre and two aliphatic centres are minimum pharmacophoric features required in the molecule so as to show sildenafil like activity. The identified lead scaffolds would provide novel platform for drug discovery of bioactive natural products.
Evaluation of a novel treatment for dopamine agonist-induced impulse control disorders for Parkinson's patients
Creators: name: Russell, Brittney
Publisher: name: University of British Columbia
Year: 2019

description: Selective dopamine D⅔ receptor agonists, such as ropinirole (ROP), effectively treat the motor symptoms of Parkinson’s Disease (PD), and unlike L-dopa, do not cause problematic dyskinesias after prolonged use. Thus, D⅔ agonists can be an attractive alternative to L-dopa for the long-term management of PD. However, D⅔ agonists induce impulse control and gambling disorders in a substantial minority of patients, raising concern over the use of these agents. Adjunctive medications that could be safely administered with D₂/₃ agonists and prevent the development of such psychiatric side-effects would therefore be highly desirable. GPR52 is a Gs-coupled g-protein coupled receptor (GPR) enriched in D2 receptor expressing neurons of the striatum. Activation of GPR52 has been demonstrated to attenuate behaviours associated with increased striatal dopamine release without altering basal function. We have previously shown that ROP increases preference for uncertain outcomes on a rodent test of gambling-like decision making known as the rodent betting task (rBT). This task measures preference for certain versus uncertain rewarding outcomes of equal expected value. Although most rats maintain a constant preference for the uncertain outcome regardless of the amount at stake, some rats increase their preference for guaranteed rewards as the wager-size increases, despite the relative expected value of the two options remaining constant. The choice strategy of these wager-sensitive rats may be considered mathematically non-normative, and such irrational decision-making patterns have been linked to the manifestation and severity of problem gambling. The degree of wager sensitivity has been associated with the density of D⅔ receptors in the dorsal striatum. I therefore hypothesized that GPR52 agonists may attenuate the ability of ROP to promote choice of uncertain outcomes in wager-sensitive rats on the rBT. I tested this hypothesis by administering GPR52 agonists BD442618 and S111224 in two cohorts of healthy male rats that were also implanted with osmotic pumps, delivering either ROP or saline. The rats performed the rBT for 28 days after osmotic pump implantation. A reduction in ROP’s ability to increase preference for uncertainty on the rBT would suggest that GPR52 agonists may be a potential treatment for iatrogenic impulse control and gambling disorders.
Towards the N_f=2 deconfinement transition temperature with O(a) improved Wilson fermions: An update
Creators: name: Brandt, Bastian B.
name: Philipsen, Owe
name: Wittig, Hartmut
name: Zeidlewicz, Lars
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We give an update on our current project to determine the transition temperature and the order of the deconfinement transition in the chiral limit of two flavour QCD. We use nonperturbatively O(a) improved Wilson fermions of the Sheikholeslami-Wohlert type, employing the efficient deflation accelerated DDHMC algorithm. We start at lattices with N_t>=12 and pion masses below 600 MeV, aiming at chiral and continuum limits with light quarks.
description: 3 pages, 4 figures, talk given at "Quark Confinement and the Hadron Spectrum IX", Madrid, Spain, Aug. 30-Sep. 3, 2010, submitted to AIP Conference Proceedings
title: Ð¦Ð¸Ð»Ð¸Ð½Ð´Ñ ÑÑÐµÐ´Ð½ÐµÐ³Ð¾ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿Ð°ÑÐ¾Ð²Ð¾Ð¹ ÑÑÑÐ±Ð¸Ð½Ñ ÑÐ¸Ð¿Ð° Ð-800-240 Ð½Ð° ÑÑÐ¿ÐµÑÑÐ²ÐµÑÑ ÐºÑÐ¸ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ Ð¿Ð°ÑÐ°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Cylinder intermediate pressure of a steam turbine type Ð-800-240 for super-critical steam parameters
Creators: name: ÐÐ·Ð¾, ÐÐ°Ð»ÐµÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÐÐ°ÑÐ¾Ð²ÑÐµ ÑÑÑÐ±Ð¸Ð½Ñ
Ð¢ÑÑÐ±Ð¸Ð½Ð½ÑÐµ Ð»Ð¾Ð¿Ð°ÑÐºÐ¸
ÐÐ¸ÑÐºÐ¸
Ð Ð¾ÑÐ¾ÑÑ

description: ÐÑÐµÐ´Ð¼ÐµÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð¼Ð°Ð³Ð¸ÑÑÑÐ° ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ¸Ð»Ð¸Ð½Ð´Ñ ÑÑÐµÐ´Ð½ÐµÐ³Ð¾ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿Ð°ÑÐ¾Ð²Ð¾Ð¹ ÑÑÑÐ±Ð¸Ð½Ñ Ð½Ð° ÑÑÐ¿ÐµÑÑÐ²ÐµÑÑÐºÑÐ¸ÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ Ð¿Ð°ÑÐ°, Ð° Ð¸Ð¼ÐµÐ½Ð½Ð¾: p_0=35 ÐÐÐ°,t_0=650 â. Ð¦ÐµÐ»ÑÑ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ ÑÑÐºÐ¸Ð·Ð½Ð¾Ðµ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ°ÑÑÐ¸ ÑÐ¸Ð»Ð¸Ð½Ð´ÑÐ° ÑÑÐµÐ´Ð½ÐµÐ³Ð¾ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð´Ð»Ñ ÑÑÑÐ±Ð¸Ð½Ñ ÑÐ¸Ð¿Ð° Ð-800-240. ÐÐ»Ñ Ð´Ð¾ÑÑÐ¸Ð¶ÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð½Ð¾Ð¹ ÑÐµÐ»Ð¸ Ð² Ð¿ÑÐ¾ÑÐµÑÑÐµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ» Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ ÑÑÐ´ ÑÐ°ÑÑÐµÑÐ½ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹, ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½ ÑÑÐºÐ¸Ð· ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ ÑÐ¸Ð»Ð¸Ð½Ð´ÑÐ° ÑÑÐµÐ´Ð½ÐµÐ³Ð¾ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸ Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ð° Ð¾ÑÐµÐ½ÐºÐ° Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð¦Ð¡Ð.
description: The subject of research for this master's qualification work is an intermediate pressure cylinder of a steam turbine for super-critical steam parameters: p_0=35 ÐÐÐ°,t_0=650 â. The aim of the work is a draft design of the flow-through part of such an intermediate pressure cylinder for a K-800-240 turbine. To achieve this goal, a number of computational studies were carried out, a sketch of the design of the intermediate pressure cylinder was developed, and the strength of the main elements of the IPC structure was evaluated.