cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The influence of membrane bilayer thickness on KcsA channel activity
Creators: name: Callahan, Karen M.
name: Benoit Mondou
name: Sasseville, Louis
name: Jean-Louis Schwartz
name: D’Avanzo, Nazzareno
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Atomic resolution structures have provided significant insight into the gating and permeation mechanisms of various ion channels, including potassium channels. However, ion channels may also be regulated by numerous factors, including the physiochemical properties of the membrane in which they are embedded. For example, the matching of the bilayer’s hydrophobic region to the hydrophobic external surface of the ion channel is thought to minimize the energetic penalty needed to solvate hydrophobic residues or exposed lipid tails. To understand the molecular basis of such regulation by hydrophobic matching requires examining channels in the presence of the lipid membrane. Here we examine the role of hydrophobic matching in regulating the activity of the model potassium channel, KcsA. 86Rb+ influx assays and single-channel recordings indicate that the non-inactivating E71A KcsA channel is most active in thin bilayers (
Saccharodite perlucida Zelazny & Webb 2011, sp. nov.
Creators: name: Zelazny, B.
name: Webb, M. D.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Derbidae
Saccharodite
Saccharodite perlucida

description: Saccharodite perlucida Zelazny, sp. nov.
(Fig. 292)
 Description. Forewings elongated, 2.3 times longer than wide, length: male 4.3–4.5 mm (mean = 4.4, n = 6), female about 4.1 mm. Colour of head, prothorax and abdomen stramineous (one paratype with small red marks on frons); meso- and metathorax orange-red; legs stramineous, but fore tibiae tinted with orange, and red marks at the joints of femora and tibiae. Forewings glassy; the very base infuscated; veins stramineous, at the very base orangered; base of Sc+R without dark spots. Hindwings colourless. In profile junction of vertex and face rounded; rostrum reaching post trochanters; subantennal processes connected to margins of facial carinae. Forewings with Sc+R fork just distad of middle of wing; basal median cell broad, twice as wide as basal cell between Sc+R and M; a small, trapezoid cell at base of Ms1; Cu1 connected by a crossvein to the very base of Ms1b, later both veins merge for a short section, but tips of Cu1 and Ms1b separated again. Male genitalia with pygofer narrow. Genital styles oval; proximal dorsal process short and slender; distal dorsal process long. Apex of aedeagus with two flat, contiguous lobes, the right one slightly narrower and finely serrated at the end.
 Etymology. The species name is a Latin adjective (perlucidus, -a, -um = transparent).
 Type material. Holotype ♂ (forewing 4.4 mm), EAST MALAYSIA: NORTH BORNEO: SABAH; labels: 1) NORTH BORNEO (SE)/ Forest Camp, 19 km / N. of Kalabakan / 60 m, 27.X.1962 2) K.J. Kuncheria / Collector / BISHOP (BPBM). Paratypes. EAST MALAYSIA: NORTH BORNEO: SABAH: Tawau, Quoin Hill, Cocoa Res., 3–7.VII.1962, 25.IX.1962, 2 ♂, light trap, H. Holtmann, Y. Hirashima; same data as holotype, but 18.X.1962, 1 ♂ (fw. 4.3) (all BPBM); Sandakan, 4 ♂ (fw. 4x 4.5) 1 ♀ (fw. 4.1), Baker (one each in USNM and BMNH).
 Distribution. North Borneo.
 Diagnosis. Saccharodite perlucida is closely related to Sa. propinqua sp. nov., also from Borneo, but has stramineous hind femora and lacks a conspicuous orange mark on the frons. The forewing shape and venation is close to that of the genus Muiralevu. The assignment to Saccharodite is based on the forewings being glassy with the Sc+R fork located near its middle and on the red coloration.
description: Published as part of Zelazny, B. & Webb, M. D., 2011, 3071, pp. 1-307 in Zootaxa 3071 on page 144
Effectiveness of PhET Simulations and YouTube Videos to Improve the Learning of Optics in Rwandan Secondary Schools
Creators: name: Kizito Ndihokubwayo
name: Uwamahoro, Jean
name: Ndayambaje, Irénée
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy

description: Effective teaching of physics requires the use of well-designed and diversified instructional tools such as multimedia throughout the teaching and learning process. The main objective of this study was to investigate the effectiveness of Physics Educational Technology (PhET) simulations and YouTube videos to improve the learning of optics in Rwandan secondary schools. The study was framed by the cognitive theory of multimedia learning. A total of 136 senior-4 physics students from six schools were divided among three groups and taught with the usual teaching methods only, the usual teaching methods supported by PhET simulations or YouTube videos, respectively. Student achievement was measured by administering the Geometric Optics Conceptual Understanding Test to each group of students before and after teaching. The groups of students who were taught using PhET simulations and YouTube videos achieved significantly more gains on the posttest compared with the students who experienced neither. PhET simulations and YouTube videos saw average normalised learning gains of 12 and 11%, respectively, while students who experienced solely the usual teaching methods got a gain of only 2%. These results show that the use of PhET simulations without student manipulation (as applied in this study) is equally effective as the use of YouTube videos. The researchers recommend that teachers incorporate these instructional tools as a way of effectively teaching and learning optics.
The Banishment of Parśurām
Creators: name: RODRIGUES, TENSING CARLOS
Publisher: name: figshare
Year: 2019
Subjects: subject: History
subject: Anthropology
subject: FOS: Sociology
subject: Archaeology
subject: Geography
subject: Sociology

description: Both the story of Reṇukā and Jamdagni and that of Kārtavīrya Arjun has to be read in the context of the conflict between the Deccan kṣatrīya and the brāmhaṇ, with the Indo-Gangetic kṣatrīya allied with the latter. So we have Kārtavīrya Arjun from the first camp against Parśurām from the last; the typical ‘kṣatrīya as the shield and the sword of the brāmhaṇ’. We have dealt with this situation earlier; in Rāmāyaṇ, Book I, Canto XX – XXI, we have sage Viśvāmitra at king Daśaratha’s court at Ayodhyā imploring him to send his son Rām, to protect the hermits who had established themselves in the Deccan, from the harassment by the rākṣas. [The Protectors, 25 Jun 17] Kārtavīrya Arjun chopped off the head of sage Jamdagni, Parśurām’s father, because the latter resisted his attempts to take away Kāmdhēnu, his ‘milk-cow of the sacred oblation’. As a revenge Parśurām slayed Kārtavīrya Arjun, his kinsmen and the kṣatrīya ‘21 times’. This story of the slaying of the ‘rākṣas ’in Deccan is repeated several times in the itihās; at Paṁcavaṭī alone Rām is said to have slayed fourteen thousand rākṣas. (Mahābhārat, DrōṇParv, Abhimanyu-badha Parv, LIX). Reṇukā was a Deccan kṣatrīya; she is worshipped as Ellamma in Karnataka and Telangana and as Yēlluāī in Maharashtra. In the midst of the Deccan kṣatrīya - brāmhaṇ feud, her fidelity would always be suspect. Joshi describes Reṇukā as a queen of the region that is now Vidarbha. Since Jamdagni found it wiser not to confront her in war, he feigned infatuation for her and married her, resulting in accession of her kingdom. Eventually he finds an opportunity to kill her. [Joshi, 2016 : Grīk Nāvīk Tē Pēṣvāī, 73]
The Effective Surface Area of Amorphous Solid Water Measured by the Infrared Absorption of Carbon Monoxide
Creators: name: He, Jiao
name: Clements, Aspen R.
name: Emtiaz, SM
name: Toriello, Francis
name: Garrod, Robin T.
name: Vidali, Gianfranco
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The need to characterize ices coating dust grains in dense interstellar clouds arises from the importance of ice morphology in facilitating the diffusion and storage of radicals and reaction products in ices, a well-known place for the formation of complex molecules. Yet, there is considerable uncertainty about the structure of ISM ices, their ability to store volatiles and under what conditions. We measured the infrared absorption spectra of CO on the pore surface of porous amorphous solid water (ASW), and quantified the effective pore surface area of ASW. Additionally, we present results obtained from a Monte Carlo model of ASW in which the morphology of the ice is directly visualized and quantified. We found that 200 ML of ASW annealed to 20 K has a total pore surface area that is equivalent to 46 ML. This surface area decreases linearly with temperature to about 120 K. We also found that (1) dangling OH bonds only exist on the surface of pores; (2) almost all of the pores in the ASW are connected to the vacuum--ice interface, and are accessible for adsorption of volatiles from the gas phase; there are few closed cavities inside ASW at least up to a thickness of 200 ML; (3) the total pore surface area is proportional to the total 3-coordinated water molecules in the ASW in the temperature range 60--120 K. We also discuss the implications on the structure of ASW and surface reactions in the ice mantle in dense clouds.
description: 12 pages, 16 figures
Changes in liana community structure and functional traits along a chronosequence of selective logging in a moist semi-deciduous forest in Ghana
Creators: name: Addo-Fordjour, Patrick
name: Bismark Ofosu-Bamfo
name: Kwofie, Francis
name: Nukunu Akyea-Bobi
name: Fidaus A. Rahman
name: Amoah, Emmanuel
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Background: Lianas are an important component of tropical forests that respond to logging disturbance. Determining liana response to selective logging chronosequence is important for understanding long-term logging effects on lianas and tropical forests. Aims: Our objective was to quantify the response of liana communities to selective logging chronosequence in a moist semi-deciduous forest in Ghana. Methods: Liana community characteristics were determined in ten 40 m × 40 m plots randomly and homogenously distributed in each of four selectively logged forest stands that had been logged 2, 14, 40 and 68 years before the surveys and in an old-growth forest stand (ca. >200 years). Results: Liana species composition differed significantly among the forest stands, as a function of logging time span, while species richness fluctuated along the chronosequence. The abundance of liana communities and of reproductive and climbing guilds was lower in the logged forests than in the old-growth forest. The ratio of liana abundance and basal area to those of trees was similar in the logged forests, but significantly lower than those in the old-growth forest. Conclusions: Logging impacts on liana community structure and functional traits were largely evident, though no clear chronosequence trends were recorded, except for species composition.
Quantum Computing and a Unified Approach to Fast Unitary Transforms
Creators: name: Agaian, Sos S.
name: Klappenecker, Andreas
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A quantum computer directly manipulates information stored in the state of quantum mechanical systems. The available operations have many attractive features but also underly severe restrictions, which complicate the design of quantum algorithms. We present a divide-and-conquer approach to the design of various quantum algorithms. The class of algorithm includes many transforms which are well-known in classical signal processing applications. We show how fast quantum algorithms can be derived for the discrete Fourier transform, the Walsh-Hadamard transform, the Slant transform, and the Hartley transform. All these algorithms use at most O(log^2 N) operations to transform a state vector of a quantum computer of length N.
description: 11 pages, LaTeX2e, 15 figures, not viewable as dvi. To appear in Image Processing: Algorithms and Systems, Electronic Imaging 2002, San Jose, SPIE, 2002. Odd title beyond our control
Mapping of non-central potentials under point canonical transformations
Creators: name: Kocak, Mehmet
name: Zorba, Ilker
name: Gonul, Bulent
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Motivated by the observation that all known exactly solvable shape invariant central potentials are inter-related via point canonical transformations, we develop an algebraic framework to show that a similar mapping procedure is also exist between a class of non-central potentials. As an illustrative example, we discuss the inter-relation between the generalized Coulomb and oscillator systems.
description: 11 pages article in LaTEX (uses standard article.sty). Please check http://www1.gantep.edu.tr/~gonul for other studies of Nuclear Physics Group at University of Gaziantep
Additional file 2: of Necrotizing enterocolitis is associated with acute brain responses in preterm pigs
Creators: name: Sun, Jing
name: Pan, Xiaoyu
name: Christiansen, Line
name: Yuan, Xiao-Long
name: Skovgaard, Kerstin
name: Chatterton, Dereck
name: Kaalund, Sanne
name: Gao, Fei
name: Sangild, Per
name: Pankratova, Stanislava
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Table S1. Characteristics of preterm pigs included in the study. (DOCX 14Â kb)
Saccharodite propinqua Zelazny & Webb 2011, sp. nov.
Creators: name: Zelazny, B.
name: Webb, M. D.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Derbidae
Saccharodite
Saccharodite propinqua

description: Saccharodite propinqua Zelazny, sp. nov.
(Fig. 293)
 Description. Forewing length in female about 4.3 mm. Frons with a conspicuous orange mark and hind femora red. Male genitalia with apical portion of aedeagus bearing two flat lobes. However, both lobes not parallel, the right one positioned horizontally, the left one vertically.
 Note. Very similar to Saccharodite perlucida sp. nov. The above description has been shortened, due to this similarity.
 Etymology. The species name is a Latin adjective (propinquus, -a, -um = neighbouring).
 Type material. Holotype ♂, EAST MALAYSIA: NORTH BORNEO: SARAWAK; labels: 1) BORNEO: SARAWAK/ Bau dist. Pang-/ Kalan Tebang / 300–450 m./ Sept. 5–8, '58 2) T. C. Maa / Collector / No. MB 306 (BPBM). Paratypes. EAST MALAYSIA: NORTH BORNEO: SABAH: Sandakan, 2 ♀ (fw. 4.3 mm), Baker (BPBM, USNM); SARAWAK: Gunong Mulu, Nat. Park, 50 m, 7.I.1978, 1 ♀, J.D. Holloway (BMNH).
 Distribution. North Borneo.
 Diagnosis. Saccharodite propinqua is closely related to Sa. perlucida sp. nov. (also from Borneo) but has a conspicuous orange mark on the frons and red hind femora. It is further very similar to Sa. separata Zelazny from the Philippines which, however, has the infuscation on the forewing base covering the basal quarter of the wing, including the basal median cell. As in these species, the forewing shape and venation is close to that of the genus Muiralevu. The assignment to Saccharodite is based on the forewings being glassy with the Sc+R fork located near its middle and on the red coloration.
description: Published as part of Zelazny, B. & Webb, M. D., 2011, 3071, pp. 1-307 in Zootaxa 3071 on page 144
Two loop radion correction to $K_L$ - $K_S$ mass difference in the stabilised Randall-Sundrum brane world scenario
Creators: name: Gupta, Abhinav
name: Mahajan, Namit
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the stabilised Randall-Sundrum brane world scenario, the radion can have phenomenologically testable effects, which can be measured against precisely measured electroweak physics data. We investigate the effect of two loop radion corrections to $K_L$ - $K_S$ mass difference to set a bound on the radion mass and vacuum expectation value. It is found that the leading two loop corrections are of the order $[Log(\frac{Λ^2}{m_ϕ^2}) ]^2$ where $Λ$ is the cut-off scale ${\cal O}(\sim$TeV) and $m_ϕ$ is the radion mass.
description: 9 page Latex2e file including one postscript figure. Journal Ref: PRD 65, 056003 (2002)
Saccharodite timida Zelazny & Webb 2011, sp. nov.
Creators: name: Zelazny, B.
name: Webb, M. D.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Derbidae
Saccharodite
Saccharodite timida

description: Saccharodite timida Zelazny, sp. nov.
(Fig. 294)
 Description. Forewings 2.1 times longer than wide, length in male 4.0– 4.3 mm. Colour stramineous; margins of facial carinae above eyes, a mark on thoracic pleura, and abdominal tergites orange to orange-red; a red line across base of scutellum in holotype, but missing in paratype. Forewings glassy; faintly infuscated around clavus tip up to middle of Cu1; veins stramineous, but veins at very base of wing, in infuscated parts, and last subcostal sector red; base of Sc+R without dark spots. Hindwings with basal sections of Cu and claval veins red. In profile, junction of vertex and face rounded; rostrum reaching post trochanters; subantennal processes connected to margins of facial carinae. Forewings with Sc+R fork at middle of wing; basal median cell broad, twice as wide as basal cell between Sc+R and M; bases of Cu1 and Ms1b usually merged (but see Fig. 294s), but tips separated; a tiny triangle at base of Ms1. Male genitalia with pygofer narrow. Genital styles oval; proximal dorsal process short and slender; distal dorsal process long. Apex of aedeagus with two flat lobes; the right one narrower and usually (holotype) finely serrated at the end.
 Etymology. The species name is a Latin adjective (timidus, -a, -um = timid).
 Type material. Holotype ♂ (forewing 4.3 mm), EAST MALAYSIA: NORTH BORNEO: SABAH; labels: 1) NORTH BORNEO (SE)/ Forest Camp, 19 km / N. of Kalabakan / 6.XI.1962 2) Y. Hirashima / Malaise Trap / BISHOP (BPBM). Paratype. EAST MALAYSIA: NORTH BORNEO: SABAH: Tawau, Quoin Hill, Cocoa Res. Sta., 4.IX.1962, 1 ♂ (fw. 4.0), light trap, Y. Hirashima (BPBM); BRUNEI, Labi / Bukit Teraja / 30km S.E. of Seria / 21–28.iii.1979, primary mixed/dipterocarp/forest, alt. 60m, light trap 2/ 50m. above ground/ L. Sutton /B.M. 1985- 50, 1 ♂ (BMNH).
 Distribution. North Borneo.
 Diagnosis. Saccharodite timida shows similarities to Sa. aurora sp. nov., Sa. perlucida sp. nov., and Sa. propinqua sp. nov., all three also from Borneo, as well as to Sa. separata Zelazny from the Philippines. It can be easily separated from these by its stramineous mesonotum.
description: Published as part of Zelazny, B. & Webb, M. D., 2011, 3071, pp. 1-307 in Zootaxa 3071 on page 145
title: Severe weather nowcasting and model evaluation using differential reflectivity
Creators: name: Lo, Chun Hay Brian
Publisher: name: University of Reading
Year: 2024

description: Columns of enhanced differential reflectivity (ZDR) are indicative of the suspension
and lofting of large raindrops and hence can be used as a proxy for intense updrafts
in radar observations. The UK operational weather radars were upgraded since
January 2018 to measure ZDR. The Met Office has introduced a new double moment
microphysics scheme. Both allow the study of ZDR columns for nowcasting and
forecasting, respectively. The primary aims of the thesis are to assess the potential
of ZDR columns in predicting severe convection within the UK and to evaluate
simulated ZDR columns within the UK’s operational weather model.
A 3D composite of ZDR is produced from the operational radar data. Evaluation
against research radar data indicates that ZDR columns can reliably be detected in
the composite at a horizontal resolution of 1 km.
A ZDR column detection algorithm for the composite is developed. Detected
columns are found to precede severe convection in tracked convective cells with lead
times up to 20 minutes for three case days. The variety in thresholds giving optimal
performance and skill in the early detection of severe convection across case days
can be explained by the presence of hail in the cell.
A polarimetric radar forward operator is constructed for the simulation of rain
contribution to ZDR within the Met Office Unified Model (MetUM). The implemented T-matrix scattering method accounts for non-Rayleigh scattering.
Simulated ZDR within the single moment (Wilson-Ballard) and the double moment (CASIM) microphysics schemes within MetUM simulations of 300-metre grid
length are evaluated with radar observations. Simulated ZDR columns are wide,
deep, and intense within Wilson-Ballard simulations, whereas such columns are rare
in CASIM simulations, in contrast with the abundance of ZDR columns in observations. Although CASIM captures well the ZDR-ZH relationship for rain, updrafts in
simulations coupled to CASIM are considerably weaker.
title: 01_1618
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Analysis of solar neutrino induced double beta processes for several nuclei
Creators: name: Semenov, S. V.
name: Gaponov, Yu. V.
name: Simkovic, F.
name: Domin, P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate neutrino flux induced double beta transitions in targets built of Cd112, Cd114, Cd116 and O18 isotopes. In addition to known beta^- beta^- channel we consider new beta^- beta^+ and beta^- beta^+ gamma modes of the neutrino induced double beta process. A possibility of detection of the solar neutrinos via the induced double beta transitions of interest is discussed. We note that the beta^- part of the solar neutrino induced beta^- beta^+ process in O18 was already discussed in Ref. [9,10] in connection with a possible influence of high energy electron production of this origin on the SuperKamiokande results.
description: 5 pages, LaTeX. Talk presented by S. V. Semenov on International Workhop on Non-Accelerator New Physics (NANP'01), Dubna, Russia, June 2001, to be published in Phys. Atom. Nucl. (2002)
Crossover from weak to strong quench in a spinor Bose-Einstein condensate
Creators: name: Kang, Seji
name: Hong, Deokhwa
name: Kim, Joon Hyun
name: Shin, Yong-il
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the early-time dynamics of a quasi-two-dimensional spin-1 antiferromagnetic Bose-Einstein condensate after a sudden quench from the easy-plane to the easy-axis polar phase. The post-quench dynamics shows a crossover behavior as the quench strength $\tilde{q}$ is increased, where $\tilde{q}$ is defined as the ratio of the initial excitation energy per particle to the characteristic spin interaction energy. For a weak quench of $\tilde{q}<1$, long-wavelength spin excitations are dominantly generated, leading to the formation of irregular spin domains. With increasing $\tilde{q}$, the length scale of the initial spin excitations decreases, and we demonstrate that the long-wavelength instability is strongly suppressed for high $\tilde{q}>2$. The observed crossover behavior is found to be consistent with the Bogoliubov description of the dynamic instability of the initial spinor condensate.
description: 7 pages, 6 figures
Economic Implications of Harvest Time Effects on Switchgrass Moisture Content, Nutrient Concentration and Yield
Creators: name: Lindsay, Karen
name: Popp, Michael
name: West, Chuck
name: Ashworth, Amanada
name: Rocateli Caldeira, Alexandre
name: Farris, Rodney
name: Kakani, Gopal
name: Fritschi, Felix
name: Green, Steven
name: Alison, M.W.
name: Maw, Michael
name: Acosta-Gamboa, Lucia
name: Lindsay, Karen
name: Popp, Michael
name: West, Chuck
name: Ashworth, Amanada
name: Rocateli Caldeira, Alexandre
name: Farris, Rodney
name: Kakani, Gopal
name: Fritschi, Felix
name: Green, Steven
name: Alison, M.W.
name: Maw, Michael
name: Acosta-Gamboa, Lucia
Publisher: name: Unknown
Year: 2016
Subjects: subject: Farm Management
subject: switchgrass
subject: harvest date
subject: moisture content
subject: nutrient concentration
subject: yield curve

description: Biorefineries face logistical problems that may affect the price a biorefinery is willing to pay. One of the driving factors in storage and transportation of biomass is the moisture content (MC) at harvest. Delaying switchgrass harvest from profit-maximizing times of October through November, when moisture and nutrient concentrations of the standing crop are still high, to January or February, when moisture in the standing crop has declined and more nutrients have translocated back to the roots of this perennial plant, may result in production cost savings at the expense of lower yield. Using 20 and 30% MC thresholds in the standing crop as a determining factor, harvesting requires a separate cutting pass above this threshold to allow drying in the swath before chopping with a forage harvester. Below that threshold, a forage harvester may be equipped to perform both cutting and chopping functions in a single pass. Using switchgrass trial data from several environments, this study calculates harvest date-driven changes in yield, harvest cost and nutrient replacement between a profit-maximizing harvest date, requiring two harvest equipment operations vs. delayed, single-pass harvest at lower standing crop MC of 30% and 20% to show whether delayed harvest is feasible.
title: INVESTIGATING A MOTIVATION MODEL FOR GAMIFIED E-LEARNING: A MIXED METHODS APPROACH
Creators: name: Sen, Ali
Publisher: name: University of Plymouth
Year: 2024
Subjects: subject: Self-determination, gamification, mixed methods, e-learning
subject: PhD

description: Investigating A Motivation Model for Gamified E-learning: A Mixed Methods Approach Ali Sen Abstract There has been a recent increase in educational interest in gamification over the past five years (Behl et al., 2022; Ertan & Kocadere, 2022). A central tenet of the increase in its popularity may stem from its motivational power in educational settings (Sailer et al., 2017; Sailer & Homner, 2020). However, prior research on gamification has not sufficiently investigated the mechanisms by which the phenomenon induces its motivational effects. A crucial question to consider is how the motivational theories that underpin gamification work. Consequently, the current study looks at how game elements map into the notion of self-determination to explore the relationship between intrinsic motivation and gamification in the context of job interview skills. Methods: The current research is divided into three distinct phases with different research strategies. The first phase is design-based research in which the researcher develops a gamification prototype and assumes the role of a designer to understand the impact of game elements. The second phase is an empirical quantitative study that uses questionnaires to test the proposed motivational model. The third phase is a qualitative study that aims to focus on the student experience by addressing the research questions through exploring experience and perception. For the survey, a sample of business students from UK universities participated in the study. Smart-PLS was used for analysis because the current study incorporates both a formative and reflective model. Then, group interviews were conducted with volunteer students who were willing to participate in the study and thematic analysis was carried out. Results: Immersion-related gamification features have an indirect effect on intrinsic motivation through autonomy need satisfaction, while achievement gamification features have a direct effect on competence need satisfaction. Social-related gamification features have a direct effect on relatedness need satisfaction and intrinsic motivation. In the qualitative findings of the research, four different themes and ten different sub-themes were identified. In the current study, the participants expressed that they wanted to increase their confidence and skills and that they enjoyed competition and collaboration, although these preferences vary among participants. Participants also emphasised the importance of usability, personalisation and feedback given to users in digital activities. The findings of the current research are helpful for educators and designers as they shed light on how different gamification features affect students' motivation to learn.
title: Social activity of womenin the Dobrzeń Wielki communein light of anthropological critique
Creators: name: Baer, Monika
Publisher: name: Uniwersytet Wrocławski, Wydział Nauk Historycznych i Pedagogicznych
Year: 2018

description: The chapter of the book: “Mutual Impact: Conflict, Tension and Cooperation in Opole Silesia”  is based on first-hand anthropological field research on the sociocultural aspects of the relationship between the inhabitants of the Dobrzeń Wielki commune and the expanding Elektrownia Opole.
Filtered Reaction Rate Modelling in Moderate and High Karlovitz Number Flames: an a Priori Analysis
Creators: name: Nilsson, Thommie
name: Yu, Rixin
name: Doan, Nguyen Anh Khoa
name: Langella, Ivan
name: Swaminathan, Nedunchezhian
name: Bai, Xue-Song
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: Article
Turbulent premixed flame
Direct numerical simulation
Combustion model
High Karlovitz number
Probability density function

description: Abstract: Direct numerical simulations (DNS) of statistically planar flames at moderate and high Karlovitz number (Ka) have been used to perform an a priori evaluation of a presumed-PDF model approach for filtered reaction rate in the framework of large eddy simulation (LES) for different LES filter sizes. The model is statistical and uses a presumed shape, based here on a beta-distribution, for the sub-grid probability density function (PDF) of a reaction progress variable. Flamelet tabulation is used for the unfiltered reaction rate. It is known that presumed PDF with flamelet tabulation may lead to over-prediction of the modelled reaction rate. This is assessed in a methodical way using DNS of varying complexity, including single-step chemistry and complex methane/air chemistry at equivalence ratio 0.6. It is shown that the error is strongly related to the filter size. A correction function is proposed in this work which can reduce the error on the reaction rate modelling at low turbulence intensities by up to 50%, and which is obtained by imposing that the consumption speed based on the modelled reaction rate matches the exact one in the flamelet limit. A second analysis is also conducted to assess the accuracy of the flamelet assumption itself. This analysis is conducted for a wide range of Ka, from 6 to 4100. It is found that at high Ka this assumption is weaker as expected, however results improve with larger filter sizes due to the reduction of the scatter produced by the fluctuations of the exact reaction rate.
Subsampling Generative Adversarial Networks: Density Ratio Estimation in Feature Space with Softplus Loss
Creators: name: Ding, Xin
name: Wang, Z. Jane
name: Welch, William J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Filtering out unrealistic images from trained generative adversarial networks (GANs) has attracted considerable attention recently. Two density ratio based subsampling methods---Discriminator Rejection Sampling (DRS) and Metropolis-Hastings GAN (MH-GAN)---were recently proposed, and their effectiveness in improving GANs was demonstrated on multiple datasets. However, DRS and MH-GAN are based on discriminator based density ratio estimation (DRE) methods, so they may not work well if the discriminator in the trained GAN is far from optimal. Moreover, they do not apply to some GANs (e.g., MMD-GAN). In this paper, we propose a novel Softplus (SP) loss for DRE. Based on it, we develop a sample-based DRE method in a feature space learned by a specially designed and pre-trained ResNet-34 (DRE-F-SP). We derive the rate of convergence of a density ratio model trained under the SP loss. Then, we propose three different density ratio subsampling methods (DRE-F-SP+RS, DRE-F-SP+MH, and DRE-F-SP+SIR) for GANs based on DRE-F-SP. Our subsampling methods do not rely on the optimality of the discriminator and are suitable for all types of GANs. We empirically show our subsampling approach can substantially outperform DRS and MH-GAN on a synthetic dataset and the CIFAR-10 dataset, using multiple GANs.
title: Small Modular Reacots for Powering Data Centers
Creators: name: Luelf, William B.
Publisher: name: George Mason University
Year: 2024
Subjects: subject: SMR
subject: Nuclear Energy
subject: Data Center
subject: Sustainability
subject: Demand Response

description: Housed in Northern Virginia is the Data Center Capital of the world. Accommodating such large forms of infrastructure requires copious amounts of electricity, and as a result, an immense strain is placed on the adjoining power grid. Correspondingly, energy availability, accessibility, and reliability have each become substantial points of contention between data center operators and the utilities. To alleviate this hinderance to the grid, data centers must participate in demand response. More often than not, however, data center operators and stakeholders are reluctant to partake in demand response programs due to concerns in maintaining quality-of-service (QoS) and the resultant impacts to their bottom-line. Simultaneously, societal pressure from policymakers and their constituents, for increased clean energy sourcing, has been placed on the shoulders of both utility owners and data center benefactors. To address each side of this multipronged equation; grid reliability, QoS/profit margins, and clean energy, much research has been conducted on the topic of server load curtailment solutions for demand response. In fact, one of the prevailing paradigms in data center demand response research is load migration between geo-distributed data centers. Such demand response programs are based on forecasted carbon-free energy availability and current, regional energy pricing. Real world implementations of this form of demand response have proven to be successful, however, latency concerns remain as an obstacle to time-sensitive workloads. Likewise, the underlying issue with dynamic virtual machine consolidation is the timing of workload allocations to the appropriate host. Presented in this study is an alternative solution, one that addresses each of the aforementioned issues; the incorporation of nuclear powered small modular reactors (SMRs) for powering data centers. This report will explore the technical aspects of SMRs that make them ideal candidates for future data center power generation. An overarching drawback to SMRs, however, is the associated costs. Hence, the other complimentary focus of this study will be a cost analysis of onsite SMR installation. HOMER Pro was used to conduct this study, specifically, to determine how different cost parameters affect the levelized cost of energy as well as the economic viability of SMRs.
Ordering of atomic mono-layers on a (001) cubic crystal surface
Creators: name: Proville, Laurent
Publisher: name: arXiv
Year: 2001
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The self-organization of a chemi-sorbed mono-layer is studied as a two dimensional ordering process in presence of surface stress. As proved previously for a single phase separation, a steady surface state is yielded from the competition between the domain boundary energy and the surface stress elastic energy. In the present letter, the resulting patterns are shown to depend on the interplay between the symmetries of both the internal layer order and the underlying crystal. For experimental relevance, our study is focussed on a (001) copper surface and we believe to enhance a route to stabilize novel surface nanostructures.
description: 5 pages, 2 figures. submitted to PR
Ghost imaging LiDAR via sparsity constraints using push-broom scanning
Creators: name: Ma, Shuang
name: Liu, Zhentao
name: Wang, Chenglong
name: Hu, Chenyu
name: Li, Enrong
name: Gong, Wenlin
name: Tong, Zhishen
name: Wu, Jianrong
name: Shen, Xia
name: Han, Shensheng
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: Optics (physics.optics)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: Ghost imaging LiDAR via sparsity constraints using push-broom scanning is proposed. It can image the stationary target scene continuously along the scanning direction by taking advantage of the relative movement between the platform and the target scene. Compared to conventional ghost imaging LiDAR that requires multiple speckle patterns staring the target, ghost imaging LiDAR via sparsity constraints using push-broom scanning not only simplifies the imaging system, but also reduces the sampling number. Numerical simulations and experiments have demonstrated its efficiency.
Dynamical Reduction Models with General Gaussian Noises
Creators: name: Bassi, Angelo
name: Ghirardi, GianCarlo
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the effect of replacing in stochastic differential equations leading to the dynamical collapse of the statevector, white noise stochastic processes with non white ones. We prove that such a modification can be consistently performed without altering the most interesting features of the previous models. One of the reasons to discuss this matter derives from the desire of being allowed to deal with physical stochastic fields, such as the gravitational one, which cannot give rise to white noises. From our point of view the most relevant motivation for the approach we propose here derives from the fact that in relativistic models the occurrence of white noises is the main responsible for the appearance of untractable divergences. Therefore, one can hope that resorting to non white noises one can overcome such a difficulty. We investigate stochastic equations with non white noises, we discuss their reduction properties and their physical implications. Our analysis has a precise interest not only for the above mentioned subject but also for the general study of dissipative systems and decoherence.
description: 22 pages, Latex
Saccharodite vietnamensis Zelazny & Webb 2011, sp. nov.
Creators: name: Zelazny, B.
name: Webb, M. D.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Derbidae
Saccharodite
Saccharodite vietnamensis

description: Saccharodite vietnamensis Zelazny, sp. nov.
(Fig. 295)
 Description. Forewings elongated, 2.2 times longer than wide, length in male about 3.8 mm. Colour stramineous to light brown; three conspicuous red marks in front and above eyes; frons light red; scutellum with dark red stripes at the sides; ventrally, pro- and mesothorax with red marks, metathorax red; hind legs red except for apical 3/4th of tibiae and tarsi; abdomen red; genitalia stramineous. Forewings glassy; basal third infuscated; veins stramineous to light brown, but Cu and bases of Cu1 and Ms1 red; four dark spots at base of Sc+R. Hindwings faintly infuscated at the base; veins in basal third red. In profile, junction of vertex and face rounded; rostrum reaching post trochanters; subantennal processes connected to margins of facial carinae. Forewings with Sc+R fork just before middle of wing; basal median cell short and rhomboid; at the tip of the basal median cell Ms1 branching as well as Cu1 touching Ms1; Ms1a angulated at bases and connected to M by a crossvein forming a large, triangular cell at the base of Ms1; apices of Cu1 and Ms1b separated. Male genitalia with pygofer narrow. Genital styles elongated; proximal dorsal process short and slender; distal dorsal process long. Apical part of aedeagus short, with two short dorsal lobes, which are contiguous at the tip.
 Etymology. Derived from Vietnam, the latinized species name (vietnamensis, -ensis, -ense) is an adjective.
 Type material. Holotype ♂ (forewing 3.8 mm), VIETNAM; labels: 1) VIET NAM/ Blao (Balao) 600m / 14– 21.X.1960 2) C.M. Yoshimoto / Collector (BPBM).
 Distribution. Vietnam.
 Diagnosis. Saccharodite vietnamensis sp. nov. show similarities Sa. timida sp. nov., Sa. aurora sp. nov., Sa. propinqua sp. nov., as well as Sa. perlucida sp. nov., all from Borneo. It can be easily distinguished from these by the three red marks on the facial carinae and by the simple apical part of the male aedeagus.
description: Published as part of Zelazny, B. & Webb, M. D., 2011, 3071, pp. 1-307 in Zootaxa 3071 on pages 145-146
What would be the Corn and Sorghum Price Gap Allowing China to Continue Importing Sorghum?
Creators: name: Wang, Haiyan
name: Malaga, Jaime
name: Wang, Haiyan
name: Malaga, Jaime
Publisher: name: Unknown
Year: 2016
Subjects: subject: Demand and Price Analysis
subject: International Relations/Trade
subject: Sorghum
subject: Corn
subject: China
subject: Price
subject: Stocks-to-use ratio

description: The large volume of sorghum imports for feed use since 2013 has rapidly made China the largest export destination for sorghum, especially sorghum from the U.S., which has sent about 90% of its sorghum exports to China by MY 2014/2015. The main reason for China’s increasing imports of sorghum may be related to its corn domestic and trade policies, which pushed up domestic corn prices. Because sorghum is a cheap close substitute for corn, the large price gap between these two grains attracted livestock industries to shift part of their feed grain use from corn to sorghum as the price of corn continued to rise. In order to estimate and forecast the prices of sorghum and corn in China, this study developed a price determination model by using a stocks-to-use ratio formulation to capture market supply and demand factors. The government policy effect has also been included in the model. A baseline projection and three simulation scenarios were performed to forecast the Chinese corn and sorghum prices from 2015 to 2019. Results of the study indicated that prices for Chinese corn and sorghum may be declining in the next five years and the price of sorghum would be lower than the price of corn. In addition, the three simulation scenarios suggested that price differences between these two grains would be smaller if the Chinese government would eliminate its temporary corn reserve program.
Rotation and pulsation in Ap stars: first light results from TESS sectors 1 and 2
Creators: name: Cunha, M. S.
name: Antoci, V.
name: Holdsworth, D. L.
name: Kurtz, D. W.
name: Balona, L. A.
name: Bognár, Zs.
name: Bowman, D. M.
name: Guo, Z.
name: Kołaczek-Szymański, P. A.
name: Lares-Martiz, M.
name: Paunzen, E.
name: Skarka, M.
name: Smalley, B.
name: Sódor, Á.
name: Kochukhov, O.
name: Pepper, J.
name: Richey-Yowell, T.
name: Ricker, G. R.
name: Seager, S.
name: Buzasi, D. L.
name: Fox-Machado, L.
name: Hasanzadeh, A.
name: Niemczura, E.
name: Quitral-Manosalva, P.
name: Monteiro, M. J. P. F. G.
name: Stateva, I.
name: De Cat, P.
name: Hernández, A. García
name: Ghasemi, H.
name: Handler, G.
name: Hey, D.
name: Matthews, J. M.
name: Nemec, J. M.
name: Pascual-Granado, J.
name: Safari, H.
name: Suárez, J. C.
name: Szabó, R.
name: Tkachenko, A.
name: Weiss, W. W.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the first results from the Transiting Exoplanet Survey Satellite (TESS) on the rotational and pulsational variability of magnetic chemically peculiar A-type stars. We analyse TESS 2-min cadence data from sectors 1 and 2 on a sample of 83 stars. Five new rapidly oscillating Ap (roAp) stars are announced. One of these pulsates with periods around 4.7 min, making it the shortest period roAp star known to date. Four out of the five new roAp stars are multiperiodic. Three of these, and the singly-periodic one show the presence of rotational mode splitting. Individual frequencies are provided in all cases. In addition, seven previously known roAp stars are analysed. Additional modes of oscillation are found in some stars, while in others we are able to distinguish the true pulsations from possible aliases present in the ground-based data. We find that the pulsation amplitude in the TESS filter is typically a factor 6 smaller than that in the $B$ filter which is usually used for ground-based observations. For four roAp stars we set constraints on the inclination angle and magnetic obliquity, through the application of the oblique pulsator model. We also confirm the absence of roAp-type pulsations down to amplitude limits of 6 and 13 micromag, respectively, in two of the best characterised non-oscillating Ap (noAp) stars. We announce 27 new rotational variables along with their rotation periods, and provide different rotation periods for seven other stars. Finally, we discuss how these results challenge state-of-the-art pulsation models for roAp stars.
description: 29 pages, accepted for publication in the MNRAS