cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stretched Exponential Decay of a Quasiparticle in a Quantum Dot
Creators: name: Silvestrov, P. G.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The decay of a quasiparticle in an isolated quantum dot is considered. At relatively small time the probability to find the system in the initial state decays exponentially: $P(t)\sim \exp(-Γt)$, in accordance with the golden rule. However, the contributions to $P(t)$ accounting for the discreteness of final three-particle states, five-particle states, etc. decay much slower being $\sim (Δ_3/Γ)^n \exp(-Γt/(2n+1))$ for $2n+1$ final particles. Here $Δ_3 \ll Γ$ is the level spacing for three-particle states available via the direct decay. These corrections are dominant at large enough time and slow down the decay to become $\ln (P)\sim -\sqrt{t}$ asymptotically. $P(t)$ fluctuates strongly in this regime and the analytical formula for the distribution $W(P)$ is found.
description: 4 pages, 1 figure
Eikonal quasinormal modes of black holes beyond General Relativity
Creators: name: Glampedakis, Kostas
name: Silva, Hector O.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Much of our physical intuition about black hole quasinormal modes in general relativity comes from the eikonal/geometric optics approximation. According to the well-established eikonal model, the fundamental quasinormal mode represents wavepackets orbiting in the vicinity of the black hole's geodesic photon ring, slowly peeling off towards the event horizon and infinity. Besides its strength as a "visualisation" tool, the eikonal approximation also provides a simple quantitative method for calculating the mode frequency, in close agreement with rigorous numerical results. In this paper we move away from Einstein's theory and its garden-variety black holes and go on to consider spherically symmetric black holes in modified theories of gravity through the lens of the eikonal approximation. The quasinormal modes of such black holes are typically described by a set of coupled wave equations for the various field degrees of freedom. Considering a general, theory-agnostic, system of two equations for two perturbed fields, we derive eikonal formulae for the complex fundamental quasinormal mode frequency. In addition we show that the eikonal modes can be related to the extremum of an effective potential and its associated "photon ring". As an application of our results we consider a specific example of a modified theory of gravity with known black hole quasinormal modes and find that these are well approximated by the eikonal formulae.
description: 12 pages, 1 figure. Updated to match the published version and it includes a more rigorous implementation of the eikonal approximation
Critical temperature of Bose-Einstein condensation in trapped atomic Bose-Fermi mixtures
Creators: name: Albus, Alexander P.
name: Giorgini, Stefano
name: Illuminati, Fabrizio
name: Viverit, Luciano
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We calculate the shift in the critical temperature of Bose-Einstein condensation for a dilute Bose-Fermi mixture confined by a harmonic potential to lowest order in both the Bose-Bose and Bose-Fermi coupling constants. The relative importance of the effect on the critical temperature of the boson-boson and boson-fermion interactions is investigated as a function of the parameters of the mixture. The possible relevance of the shift of the transition temperature in current experiments on trapped Bose-Fermi mixtures is discussed.
description: 15 pages, 2 figures, submitted to J. Phys. B
Euphthiracarus (Pocsia) paraafricanus Niedbala et Stary 2014
Creators: name: Niedbała, Wojciech
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Euphthiracaridae
Euphthiracarus
Euphthiracarus paraafricanus

description: Euphthiracarus (Pocsia) paraafricanus Niedbała et Starý, 2014
 (Fig. 17 A-G)
 Diagnosis — Measurements of holotype: prodorsum: length 248, width 187, height 88; notogaster: length 454, width 328, height 333. Species of medium size; colour light brown. Prodorsum with rigid, simple lateral carinae; sensilli long, rod-like covered with some spines; other setae rigid, long, ciliate; rostral setae positioned slightly posteriorly of lamellar setae; in > ro > le > ss > ex. Notogastral setae rigid of medium length, c 1 < c 1 - d 1, only setae cp considerably (three times) longer than setae c 3, setae of row c remote from anterior margin, setae c 1 more than setae c 2 and c 3. Ventral region; 6 pairs of genital setae, only g 1 in progenital position, setae g 6 longer than other setae, 2 pairs of aggenital setae present; anal setae slightly shorter than adanal setae; setae an 3 and ad 3 situated near each other; lyrifissure iad situated laterally between setae ad 3 and an 3. Setal formula of legs (without tarsi): I:1-3-5(2)-5(1), II:1-4- 3(1)-5(1), III: 2-2-2(1)-2(1), IV: 2-1-1(1)-2(1); all tarsi monodactylous.
Localities in Tanzania: Uluguru and Nguru Mts: Niedbała and Starý 2014a.
Distribution — Afrotropical species known only from Tanzania, probably endemic.
description: Published as part of Niedbała, Wojciech, 2017, Ptyctimous mites (Acari, Oribatida) of Tanzania, pp. 957-1072 in Acarologia 57 (4) on page 981, DOI: 10.24349/acarologia/20174217, http://zenodo.org/record/5402635
The role of molecular filaments in the origin of the prestellar core mass function and stellar initial mass function
Creators: name: André, Philippe
name: Arzoumanian, Doris
name: Könyves, Vera
name: Shimajiri, Yoshito
name: Palmeirim, Pedro
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The origin of the stellar initial mass function (IMF) is one of the most debated issues in astrophysics. Here, we explore the possible link between the quasi-universal filamentary structure of star-forming molecular clouds and the origin of the IMF. Based on our recent comprehensive study of filament properties from Herschel Gould Belt survey observations (Arzoumanian et al.), we derive, for the first time, a good estimate of the filament mass function (FMF) and filament line mass function (FLMF) in nearby molecular clouds. We use the observed FLMF to propose a simple toy model for the origin of the prestellar core mass function (CMF), relying on gravitational fragmentation of thermally supercritical but virialized filaments. We find that the FMF and the FLMF have very similar shapes and are both consistent with a Salpeter-like power-law function (d$N$/dlog$M_{\rm line} \propto M_{\rm line}^{-1.5\pm0.1}$) in the regime of thermally supercritical filaments ($M_{\rm line} > 16\, M_\odot$/pc). This is a remarkable result since, in contrast, the mass distribution of molecular clouds and clumps is known to be significantly shallower than the Salpeter power-law IMF, with d$N$/dlog$M_{\rm cl} \propto M_{\rm cl}^{-0.7}$. Since the vast majority of prestellar cores appear to form in thermally transcritical or supercritical filaments, we suggest that the prestellar CMF and by extension the stellar IMF are at least partly inherited from the FLMF through gravitational fragmentation of individual filaments.
description: 9 pages, 9 figures. Accepted for publication in Astronomy and Astrophysics Letters
Canuschiza Lacroix 1999
Creators: name: Sehnal, Richard
name: Král, David
name: Bezděk, Aleš
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Melolonthidae
Canuschiza

description: Genus Canuschiza Lacroix, 1999
 Canuschiza Lacroix, 1999: 89, Figs 1 –27 (original description); LACROIX (2002): 404, Figs 1 –25 (review); BEZDĚK (2006): 199 (catalogue); LACROIX (2010): 207 (catalogue).
 Type species. Canuschiza insularis Lacroix, 1999, by original designation.
 Differential diagnosis. Genus Canuschiza differs from other schizonychine genera in combination of the following characters. Body elongate (length 7.5–17.2 mm), almost parallel-sided, weakly to moderately convex. Labrum transverse, deeply bilobed, lobes rounded. Clypeus transverse, anterior angles rounded. Fronto-clypeal suture present, forming continuous shallowly bisinuate line or better visible elevated double fronto-clypeal carina (Figs 1A,B). Occipital carina missing. Eyes small (width of both eyes combined lower than maximum width of frons between eyes) to large (width of both eyes combined larger than maximum width of frons between eyes). Antenna with eight to ten antennomeres; club with three antennomeres. Terminal maxillary palpomere elongate, truncate apically. Pronotum transverse, simply convex, without anteromedian tubercle. Basal border complete, anterior border missing. Posterior angles of pronotum broadly rounded to rectangular, in some species even distinctly produced posteriad. Elytra weakly to moderately convex, parallel-sided, rounded apically, apical angle approximately rectangular. Striae missing, except of feebly visible sutural stria. Macropterous, rarely micropterous. Protibia narrow, tridentate, terminal calcar inserted against medial dent. Claws bifid, with ventrobasal teeth (e.g. Fig. 2B). Parameres symmetrical, regularly curved in lateral aspect, rounded apically in dorsal aspect; apex with tuft of long yellowish macrosetae (Figs 10A–D, 11A–D).
 Geographical distribution. Endemic to Socotra Island.
description: Published as part of Sehnal, Richard, Král, David & Bezděk, Aleš, 2014, Canuschiza of Socotra Island (Coleoptera: Scarabaeidae: Melolonthinae) Part 1. Canuschiza insularis species group, pp. 139-171 in Acta Entomologica Musei Nationalis Pragae 54 on pages 141-142, DOI: 10.5281/zenodo.5312012
Search for CP Violation in τ-> Kπν_τDecays
Creators: name: Bonvicini, G.
name: Collaboration, CLEO
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We search and find no evidence for CP violation in tau decays into the K pi nu final state. We provide confidence limits on the imaginary part of the coupling constant Lambda, describing a relative contribution of the CP violating processes with respect to the Standard Model, to be -0.155 < Im(Lambda) < 0.047 at 90% C.L.
description: 13 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS, submitted to PRL
Lehrqualität naturwissenschaftlicher Hochschulpraktika – Befunde zu Chemie- und Physikpraktika, sowie Block- und Semesterpraktika
Creators: name: Rehfeldt, Daniel
name: Nordmeier, Volkhard
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: Praktika
subject: Lehrevaluation
subject: Lehrqualität
subject: 300 Sozialwissenschaften::370 Bildung und Erziehung::378 Hochschulbildung

description: Für Experimentalpraktika an deutschen Hochschulen wurden bisher Befunde erarbeitet, die zeigen, dass es erhebliche Unterschiede zwischen den intendierten Zielen und deren Realisierung gibt. Aus den Erkenntnissen der Praktikumsforschung und den Anforderungen guter Lehrevaluation erwuchs das theoretische, fächerübergreifende Modell der Praktikumsqualität. Der zugehörige Praktikumsqualitäts-Fragebogen (PraQ) wurde ratingbasiert für Studierende in insgesamt 18 Praktika im deutschsprachigen Raum erprobt (N = 1314). Die Testevaluationsstudien zu den Inhalten, zur Struktur und zur Konstruktvalidität zeigten Evidenzen für ein gelungenes Messinstrument. Die Stärken und Schwächen von Praktika verschiedener Fächer und Organisationsformen stellen forschungstechnisches Neuland dar. Erstmalig konnten mit diesem neuen Instrument hierfür Ergebnisse bezüglich der Unterschiede zwischen Physik. und Chemiepraktika, sowie zwischen Block- und Semesterpraktika ermittelt werden. So konnten Stärken der jeweiligen Praktikumsrealisierungen festgestellt und ein erster Schritt zur Nutzung dieser Potentiale vollführt werden. Physikpraktika wurden in einigen Bereichen der Experimentellen Kompetenz und der Lehrkompetenz der Betreuenden besser bewertet als Chemiepraktika. Semesterpraktika wiesen eine deutlich bessere Betreuungsqualität auf als Blockpraktika, allerdings bewirkten sie teils geringere Kompetenzzuwächse, z. B. im Aufbauen der Versuchsanordnung und im Zeitmanagement. Als Konsequenz aus diesen Ergebnissen können die jeweiligen Stärken der Praktikumsformen in der Zukunft genauer beobachtet und zielgerichtete Interventionen für schwächere Praktika daraus abgeleitet werden.
Euphthiracarus (Pocsia) trentus
Creators: name: Niedbała, Wojciech
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Euphthiracaridae
Euphthiracarus
Euphthiracarus trentus

description: Euphthiracarus (Pocsia) trentus (Mahunka, 1983)
 (Fig. 20 A-F)
 Pocsia trenta Mahunka, 1983.
 Diagnosis — Measurements of holotype: prodorsum: length 255, height 101, width 202, setae: ss 73, in 169, le 126, ro 144, ex 23; notogaster: length 449, height 343, width 323, setae: c 1 66, c 1 /c 1 -d 1 =0.6, cp 99, h 1 93, ps 1 76; genitoaggenital plate 144×763 ag 2 30, ag 1 20; anoadanal plate 207×51. Species of medium size; colour brown. Lateral carinae of prodorsum present; head of sensilli widely fusiform, covered with small spines; interlamellar, lamellar and rostral setae very long, longer than gastronotic setae, covered with small spines; rostral setae shorter than lamellar setae and all situated on the same level; in > ro > le > ss > ex. Notogastral setae covered with small spines, setae cp and h 1 the longest; setae of row c remote from anterior border, setae c 1 more, setae c 3 less remote. Ventral region; 5 or 6 pairs of genital setae (one posterior pair the longest), 2 pairs of aggenital setae present, setae ag 2 longer than setae ag 1; 3 pairs of anal and 3 pairs of adanal setae present, setae ad 2 and ad 3 the longest; lyrifissures iad situated laterally and slightly posteriorly of an 3 setae.
Localities in Tanzania: Kilimanjaro Mts: Mahunka 1983a, Niedbała 1998; Uluguru Mts.
Distribution — Afrotropical species known only from Tanzania, probably endemic.
description: Published as part of Niedbała, Wojciech, 2017, Ptyctimous mites (Acari, Oribatida) of Tanzania, pp. 957-1072 in Acarologia 57 (4) on pages 987-990, DOI: 10.24349/acarologia/20174217, http://zenodo.org/record/5402635
On phases in weakly interacting finite Bose systems
Creators: name: Dean, D. J.
name: Papenbrock, T.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study precursors of thermal phase transitions in finite systems of interacting Bose gases. For weakly repulsive interactions there is a phase transition to the one-vortex state. The distribution of zeros of the partition function indicates that this transition is first order, and the precursors of the phase transition are already displayed in systems of a few dozen bosons. Systems of this size do not exhibit new phases as more vortices are added to the system.
description: 7 pages, 2 figures
Revisiting constraints on asteroid-mass primordial black holes as dark matter candidates
Creators: name: Montero-Camacho, Paulo
name: Fang, Xiao
name: Vasquez, Gabriel
name: Silva, Makana
name: Hirata, Christopher M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: As the only dark matter candidate that does not invoke a new particle that survives to the present day, primordial black holes (PBHs) have drawn increasing attention recently. Up to now, various observations have strongly constrained most of the mass range for PBHs, leaving only small windows where PBHs could make up a substantial fraction of the dark matter. Here we revisit the PBH constraints for the asteroid-mass window, i.e., the mass range $3.5\times 10^{-17}M_\odot < m_{\mathrm{PBH}} < 4\times 10^{-12}M_\odot$. We revisit 3 categories of constraints. (1) For optical microlensing, we analyze the finite source size and diffractive effects and discuss the scaling relations between the event rate, $m_{\mathrm{PBH}}$ and the event duration. We argue that it will be difficult to push the existing optical microlensing constraints to much lower m$_{\mathrm{PBH}}$. (2) For dynamical capture of PBHs in stars, we derive a general result on the capture rate based on phase space arguments. We argue that survival of stars does not constrain PBHs, but that disruption of stars by captured PBHs should occur and that the asteroid-mass PBH hypothesis could be constrained if we can work out the observational signature of this process. (3) For destruction of white dwarfs by PBHs that pass through the white dwarf without getting gravitationally captured, but which produce a shock that ignites carbon fusion, we perform a 1+1D hydrodynamic simulation to explore the post-shock temperature and relevant timescales, and again we find this constraint to be ineffective. In summary, we find that the asteroid-mass window remains open for PBHs to account for all the dark matter.
description: Updated to match accepted version for publication. 43 pages
Euphthiracarus (Pocsia) uluguruensis Niedbala et Stary 2014
Creators: name: Niedbała, Wojciech
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Euphthiracaridae
Euphthiracarus
Euphthiracarus uluguruensis

description: Euphthiracarus (Pocsia) uluguruensis Niedbała et Starý, 2014
 (Figs 21 A-F)
Diagnosis — Measurements of holotype: prodorsum: length 328, width 252, height 116; notogaster: length 596, width 434, height 444.
 Rather large-sized species; colour light brown. Prodorsum with one pair of distinct long lateral carinae; sensilli rather long, with slightly fusiform head, rough, pointed distally; interlamellar setae longer than similar in length rostral and lamellar setae; rostral setae positioned slightly posteriorly of lamellar setae; exobothridial setae minute; in > le > ro > ss > ex. Notogastral setae of medium length (c 1 < c 1 -d 1), flexible, covered sparsely with cilia; setae cp the longest, setae c 1-3 remote from anterior border, setae c 1 more, setae c 3 less than setae c 2. Ventral region; setae h of mentum considerably longer than distance between them; 6 pairs of genital setae, setae g 1-4 minute, setae g 5 and g 6 long and attenuate, considerably longer than other genital setae; two pairs of aggenital setae located vertically present, setae ag 2 twice as long than setae ag 1; setae of anoadanal plates long, 3 pairs of flexible anal and 3 pairs of adanal setae rather straight; setae an 3 situated near setae ad 3; lyrifissures iad located antiaxially from ad 3 setae. Tarsi of legs heterotridactylous.
Localities in Tanzania: Uluguru and Nguru Mts: Niedbała & Starý 2014a.
Distribution — Afrotropical species known only from Tanzania, probably endemic.
description: Published as part of Niedbała, Wojciech, 2017, Ptyctimous mites (Acari, Oribatida) of Tanzania, pp. 957-1072 in Acarologia 57 (4) on page 990, DOI: 10.24349/acarologia/20174217, http://zenodo.org/record/5402635
The v=1 Quantum Hall edge with a realistic potential
Creators: name: Sjostrand, Joachim
name: Eklund, Anders
name: Karlhede, Anders
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the softening of the edge modes of the compact ferromagnetic v=1 Quantum Hall edge as the strength of the confining potential decreases. To obtain a realistic potential we use a displaced background charge plane. We find a phase transition into a spin textured edge for g<0.012 (g is the ratio betwen the Zeeman and Coulomb energies).
description: 10 pages, 8 figures
Ergebnisse fächerübergreifender Praxisrelevanz und Reflexionskompetenz in Lehr-Lern-Laboren
Creators: name: Rehfeldt, Daniel
name: Klempin, Christiane
name: Nordmeier, Volkhard
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: Lehr-Lern-Labor
subject: Reflexion
subject: Praxisrelevanz
subject: 300 Sozialwissenschaften::370 Bildung und Erziehung::378 Hochschulbildung

description: Lehramtsstudierende sehen oftmals die theoretischen Studieninhalte als zu wenig praxisrelevant für ihre spätere Tätigkeit als Lehre*in an (Makrinus, 2013, S. 13). Dabei steht wahrgenommene Praxisrelevanz in einem starken Zusammenhang mit intrinsischer Motivation (Prenzel, 1996). Die oftmals bei Studierenden beobachtete »Praxisfixierung« (Hascher, 2005) steht hierbei im Widerspruch dazu, dass Studierende die Erkenntnisse fachdidaktischer Theorien wertschätzen, um sie dann auch in ihre didaktischen Überlegungen und Lehrhandlungen zu implementieren. Vor diesem Hintergrund wurde die wahrgenommene Praxisrelevanz der theoretischen Inhalte in fachdidaktischen Anteilen des Lehramtsstudiums untersucht. Besonderer Fokus liegt hierbei auf den in den Fächern Physik, Geschichte, Englisch und Sachunterricht implementierten Lehr-Lern-Labor-Seminaren (Rehfeldt et al., 2017). Diese weisen einen eindeutig theoretischen Fokus auf, sind aber angereichert mit reflektierter Praxis in einem iterativen Lernsetting.
Synthesis of novel bis- and poly(aryldiazenylthiazoles)
Creators: name: Salem, Mostafa E.
name: Hosny, Mohamed
name: Darweesh, Ahmed F.
name: Elwahy, Ahmed H. M.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Inorganic Chemistry
subject: Plant Biology
subject: FOS: Biological sciences
subject: 60506 Virology

description: A novel series of bis- and poly(arydiazenyl)thiazoles were prepared in good yields by the reaction of the appropriate α-keto-hydrazonoyl chlorides with the corresponding bis- and poly(hydrazinecarbothioamide) in refluxing EtOH/DMF in the presence of few drops of TEA. Based on elemental analyses as well as spectral data, the structures of the new compounds were confirmed.
Acrotritia Jacot 1923
Creators: name: Niedbała, Wojciech
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Euphthiracaridae
Acrotritia

description: Acrotritia Jacot, 1923
 Rhysotritia Märkel et Meyer, 1959: Subías 2004 Rhysotritia: Märkel 1964, Aoki 1980b, Balogh and Mahunka 1983, Mahunka 1990 a
 Acrotritia: Subías 2004, Niedbała 2008b
 Type species: Phthiracarus americanus Ewing, 1909
 Diagnosis — Cuticular surface of body finely generally punctate or porose. Prodorsum without median crista, but with one or two pairs of lateral carinae; bothridial scales situated above the bothridia; posterior median apodeme present; setae in median (paraxial) position. Notogaster with 14 pairs of setae, setae c 1 and c 2 remote from anterior border more than setae c 3, setae ps 1 situated anterior the ps 2-3 setae; one pair of openings of lateral opisthonotal glands openings (gla); 5 pairs of lyrifissures ia, im, ip, ih, ips and two pairs of vestigial setae f present; terminal sinus at the posterior end. Ventral region; setae h of mentum longer than distance between them; palps 3-segmented, with normal formula: 2-2-8(1); anogenital cleft absent; one interlocking triangle present; three pairs of anal setae, an 1 and an 2 rigid, smooth, an 3 minute; three pairs of rigid adanal setae covered with small spines in distal half, longer than anal setae an 1 and an 2; lyrifissures iad located between ad 3 and an 3 setae. Legs: trochanters I and II bearing one setae and III and IV with two setae; genua IV without solenidia; setae d on tibiae IV relatively long and not coupled with solenidion; solenidia of tarsi II without coupled setae; tarsi mono-, bi- or heterotridactylous.
Distribution — Semicosmopolitan.
description: Published as part of Niedbała, Wojciech, 2017, Ptyctimous mites (Acari, Oribatida) of Tanzania, pp. 957-1072 in Acarologia 57 (4) on page 990, DOI: 10.24349/acarologia/20174217, http://zenodo.org/record/5402635
Beam Distortion Effects upon focusing an ultrashort Petawatt Laser Pulse to greater than 10$^{22}$ W/cm$^{2}$
Creators: name: Tiwari, Ganesh
name: Gaul, Erhard
name: Martinez, Mikael
name: Dyer, Gilliss
name: Gordon, Joseph
name: Spinks, Michael
name: Toncian, Toma
name: Bowers, Brant
name: Jiao, Xuejing
name: Kupfer, Rotem
name: Lisi, Luc
name: Mccary, Edward
name: Roycroft, Rebecca
name: Yandow, Andrew
name: Glenn, Griffin
name: Donovan, Mike
name: Ditmire, Todd
name: Hegelich, Bjorn Manuel
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: When an ultrashort laser pulse is tightly focused to a size approaching its central wavelength, the properties of the focused spot diverge from the diffraction limited case. Here we report on this change in behavior of a tightly focused Petawatt class laser beam by an F/1 off-axis paraboloid (OAP). Considering the effects of residual aberration, the spatial profile of the near field and pointing error, we estimate the deviation in peak intensities of the focused spot from the ideal case. We verify that the estimated peak intensity values are within an acceptable error range of the measured values. With the added uncertainties in target alignment, we extend the estimation to infer on-target peak intensities of $\geq$ 10$^{22}$ W/cm$^{2}$ for a target at the focal plane of this F/1 OAP.
description: 6 pages, 4 figures
Magnetic Phase Diagram of Ca2-xSrxRuO4 Governed by Structural Distortions
Creators: name: Fang, Zhong
name: Terakura, Kiyoyuki
Publisher: name: arXiv
Year: 2001
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We constructed, by the first-principles calculations, a magnetic phase diagram of Sr$_{2}$RuO$_4$ in the space spanned by structural distortions. Our phase diagram can qualitatively explain the experimental one for Ca$_{2-x}$Sr$_x$RuO$_4$. We found that the rotation and the tilting of RuO$_6$ octahedron are responsible for the ferro- and antiferro-magnetism, respectively, while the flattening of RuO$_6$ is the key factor to stabilize those magnetic ground states. Our results imply that the magnetic and the structural instabilities in Sr$_2$RuO$_4$ are closely correlated cooperatively rather than competitively.
description: 3 figures; accepted by PRB as rapid communication
First platinum(II)-based metal-organic linker technology (Lx®) for a plug-and-play development of antibody-drug conjugates (ADCs)
Creators: name: Merkul, Eugen
name: Sijbrandi, Niels J.
name: Muns, Joey A.
name: Aydin, Ibrahim
name: Adamzek, Kevin
name: Hendrik-Jan Houthoff
name: Nijmeijer, Bart
name: Dongen, Guus A.M.S. Van
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Introduction: Compared to the antibody and drug components of an ADC, the linker part has been somewhat neglected. However, its importance for the reduction of failures in ADC approvals is increasingly recognized. Next of being a stable glue between drug and antibody, an ideal linker should improve the manufacturability and widen the therapeutic window of ADCs. Areas covered: The biopharmaceutical company LinXis started an ADC development program in which platinum(II) is the key element of the first metal-organic linker. The cationic complex [ethylenediamineplatinum(II)]2+, herein called ‘Lx®’, is used successfully for conjugation of drugs to antibodies. Expert opinion: Based on lessons learned from ADC development, Lx linker technology fulfills most of the desirable linker characteristics. Lx allows large-scale cost-effective manufacturing of ADCs via a straightforward two-step ‘plug-and-play’ process. First clinical candidate trastuzumab-Lx-auristatin F shows favorable preclinical safety as well as outstanding in vivo tumor targeting performance and therapeutic efficacy.
Quantum dynamics of crystals of molecular nanomagnets inside a resonant cavity
Creators: name: Tejada, J.
name: Chudnovsky, E. M.
name: Amigo, R.
name: Hernandez, J. M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: It is shown that crystals of molecular nanomagnets exhibit enhanced magnetic relaxation when placed inside a resonant cavity. Strong dependence of the magnetization curve on the geometry of the cavity has been observed, providing evidence of the coherent microwave radiation by the crystals. A similar dependence has been found for a crystal placed between Fabry-Perot superconducting mirrors. These observations open the possibility of building a nanomagnetic microwave laser pumped by the magnetic field.
Acrotritia ardua
Creators: name: Niedbała, Wojciech
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Euphthiracaridae
Acrotritia
Acrotritia ardua

description: Acrotritia ardua (C.L. Koch, 1841)
 (Figs 22 A-E)
 Rhysotritia ardua: Niedbała 2001, Niedbała & Ermilov 2014.
 Diagnosis — Measurements of specimen from TAN-008: length of prodorsum: 261; length of notogaster: length 562. Species of medium size; colour light brown, brown; integument punctuate. Prodorsum with one pair of lateral carinae; sensilli with distinctly dilated head covered with spines; other setae rigid, erect, with small spines in distal half (except minute exobothridial setae); in > ss > le > ro > ex. Notogastral setae fairly short (c 1 < c 1 - d 1) covered with small spines in distal half, setae of row c remote from anterior border, setae c 2 more, setae c 3 less remote. Ventral region; 9 pairs of minute genital setae, 2 pairs of aggenital setae, arranged longitudinally. Chaetome of legs: I: 1-3-5(2)-4(1)-17(3), II: 1-3-3(1)-4(1)-13(2), III: 2-2-2(1)-3(1)-11, IV: 2-1-2-2(1)- 10; tarsi of the legs I bidactylous, tarsi II-IV heterotridactylous.
Localities in Tanzania: Nguru Mts. Species not yet recorded from TAN.
Distribution — Semicosmopolitan species.
description: Published as part of Niedbała, Wojciech, 2017, Ptyctimous mites (Acari, Oribatida) of Tanzania, pp. 957-1072 in Acarologia 57 (4) on pages 990-993, DOI: 10.24349/acarologia/20174217, http://zenodo.org/record/5402635
Goldstone Boson's Valence-Quark Distribution
Creators: name: Roberts, C. D.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Dynamical chiral symmetry breaking (DCSB) is one of the keystones of low-energy hadronic phenomena. Dyson-Schwinger equations provide a model-independent quark-level understanding and correlate that with the behaviour of the pion's Bethe-Salpeter amplitude. This amplitude is a core element in the calculation of pion observables and combined with the dressed-quark Schwinger function required by DCSB it yields a valence-quark distribution function for the pion that behaves as (1-x)^2 for x~1, in accordance with perturbative analyses. This behaviour can be verified at contemporary experimental facilities.
description: 7 pages, LaTeX2e, espcrc2.sty; Summary of a presentation at the 11th International Light-Cone Workshop: ``Light-cone Physics: Particles and Strings,'' ECT*, Trento, Italy, 3-11/Nov./2001
Dynamics of a class A nonlinear mirror mode-locked laser
Creators: name: Vladimirov, Andrei G.
name: Kovalev, Anton V.
name: Viktorov, Evgeny A.
name: Rebrova, Natalia
name: Huyet, Guillaume
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Using a delay differential equation model we study theoretically the dynamics of a unidirectional class-A ring laser with a nonlinear amplifying loop mirror. We perform linear stability analysis of the CW regimes in the large delay limit and demonstrate that these regimes can be destabilized via modulational and Turing-type instabilities, as well as by an instability leading to the appearance of square-waves. We investigate the formation of square-waves and mode-locked pulses in the system. We show that mode-locked pulses are asymmetric with exponential decay of the trailing edge in positive time and faster-than-exponential (super-exponential) decay of the leading edge in negative time. We discuss asymmetric interaction of these pulses leading to a formation of harmonic mode-locked regimes.
description: 9 pages,
Acrotritia reticulata
Creators: name: Niedbała, Wojciech
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Euphthiracaridae
Acrotritia
Acrotritia reticulata

description: Acrotritia reticulata (Mahunka, 1988)
 (Fig. 23 A-E)
 Rhysotritia reticulata Mahunka, 1988.
 Diagnosis — Measurements of paratype: prodorsum: length 247, height 91, width 192; setae: ss 56, in 91, le 56, ro 51; notogaster: length 520, height 379, width 353, setae: c 1 66, c 1 /c 1 -d 1 =0.5, h 1 63, ps 1 56; genitoaggenital plate 187×81; anoadanal plate 242×61. All characters the same as A. ardua. Only irregular, probably mineralization patterns as “the ornamentation by secretion granules forming a polygonal reticulation” (Mahunka 1988) distinguish A. reticulata (Mahunka 1988) from A. ardua.
Locality in Tanzania: Tanga Region: Mahunka 1988, Niedbała 1998.
Distribution — Afrotropical species known only from Tanzania, probably endemic.
description: Published as part of Niedbała, Wojciech, 2017, Ptyctimous mites (Acari, Oribatida) of Tanzania, pp. 957-1072 in Acarologia 57 (4) on page 993, DOI: 10.24349/acarologia/20174217, http://zenodo.org/record/5402635
The Web-Based Interactive Mars Analysis and Research System for HRSC and the iMars Project
Creators: name: Walter, S. H. G.
name: Muller, J. P.
name: Sidiropoulos, P.
name: Tao, Y.
name: Gwinner, K.
name: Putri, A. R. D.
name: Kim, J.-R.
name: Steikert, R.
name: Gasselt, S. Van
name: Michael, G. G.
name: Watson, G.
name: Schreiner, B. P.
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: surface changes
subject: web-GIS
subject: Mars
subject: planetary mapping
subject: iMars
subject: HRSC
subject: 000 Informatik, Informationswissenschaft, allgemeine Werke::000 Informatik, Wissen, Systeme::006 Spezielle Computerverfahren
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::551 Geologie, Hydrologie, Meteorologie
subject: 500 Naturwissenschaften und Mathematik::520 Astronomie::526 Mathematische Geografie

description: Web‐based planetary image dissemination platforms usually show outline coverage of available data and offer querying for metadata as well as preview and download. While the usual form of presenting multiorbit data sets is to merge the data into a larger mosaic, for change detection purposes it is essential to maintain the individual images as an important snapshot of the planetary surface taken at a specific time. We introduce the web‐based interactive Mars Analysis and Research System (iMARS web‐GIS), which is specialized on planetary surface change analysis with novel tools for simultaneous visualization of single images as time series in their original sequence. As the data foundation, we use the vast quantity of automatically coregistered orthoimages and digital terrain models (DTM) from three NASA missions' instruments processed and ingested in the context of the EU‐funded iMars project. The baseline for the coregistered images are the High‐Resolution Stereo Camera (HRSC) multiorbit quadrangle image mosaics, which are based on bundle block‐adjusted multiorbit DTM mosaics. Additionally, we make use of the existing along‐track bundle‐adjusted HRSC single images and DTMs available at the planetary data archives. We provide two science cases for exemplary workflows of the multitemporal single‐image analysis, demonstrating the dedicated tools for surface change interpretation—one near Mawrth Vallis and one near the south pole. A web mapping application including the presented functionality has been implemented and is available at http://imars.planet.fu-berlin.de with the iMars project website (http://www.i-mars.eu/web-gis) serving as a mirror.
Spin-transfer torques for domain walls in antiferromagnetically coupled ferrimagnets
Creators: name: Okuno, Takaya
name: Kim, Duck-Ho
name: Oh, Se-Hyeok
name: Kim, Se Kwon
name: Hirata, Yuushou
name: Nishimura, Tomoe
name: Ham, Woo Seung
name: Futakawa, Yasuhiro
name: Yoshikawa, Hiroki
name: Tsukamoto, Arata
name: Tserkovnyak, Yaroslav
name: Shiota, Yoichi
name: Moriyama, Takahiro
name: Kim, Kab-Jin
name: Lee, Kyung-Jin
name: Ono, Teruo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Antiferromagnetic materials are outstanding candidates for next generation spintronic applications, because their ultrafast spin dynamics makes it possible to realize several orders of magnitude higher-speed devices than conventional ferromagnetic materials1. Though spin-transfer torque (STT) is a key for electrical control of spins as successfully demonstrated in ferromagnetic spintronics, experimental understanding of STT in antiferromagnets has been still lacking despite a number of pertinent theoretical studies2-5. Here, we report experimental results on the effects of STT on domain-wall (DW) motion in antiferromagnetically-coupled ferrimagnets. We find that non-adiabatic STT acts like a staggered magnetic field and thus can drive DWs effectively. Moreover, the non-adiabaticity parameter β of STT is found to be significantly larger than the Gilbert damping parameter α, challenging our conventional understanding of the non-adiabatic STT based on ferromagnets as well as leading to fast current-induced antiferromagnetic DW motion. Our study will lead to further vigorous exploration of STT for antiferromagnetic spin textures for fundamental physics on spin-charge interaction as wells for efficient electrical control of antiferromagnetic devices.
description: 19 pages, 4 figures
Magnetic Field Effects in the Pseudogap Phase: A Precursor Superconductivity Scenario
Creators: name: Iyengar, Andrew P.
name: Kao, Ying-Jer
name: Chen, Qijin
name: Levin, K.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We demonstrate that the observed dependences of $T_c$ and $T^*$ on small magnetic fields can be readily understood in a precursor superconductivity approach to the pseudogap phase. In this approach, the presence of a pseudogap at $T_c$ (but not at $T^*$) and the associated suppression of the density of states lead to very different sensitivities to pair-breaking perturbations for the two temperatures. Our semi-quantitative results address the puzzling experimental observation that the coherence length $ξ$ is weakly dependent on hole concentration $x$ throughout most of the phase diagram. We present our results in a form which can be compared with the recent experiments of Shibauchi et al, and argue that orbital effects contribute in an important way to the $H$ dependence of $T^*$.
description: 6 pages, 1 figure, elsart.cls included. Submitted to the proceeding of SNS 2001, Chicago
Arrêt du parlement, portant règlement fur les Donations prétendues rémunératoires et à prix d'argent, dans la Ville et Chef lieu de Valenciennes
Creators: name: Plouvain, Pierre-Antoine-Samuel-Joseph (1754-1832)
name: Six, Philippe-Josse-Auguste-Joseph (1732-1793)
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2019
Subjects: Commune
Dons-et-legs
Administration locale d'Ancien Régime

description: Source: http://nordnum.univ-lille.fr/ark:/72505/a0115224001360im5Ol/from/a011522400136ypxWl12
description: Source: NAKALONA
description: Coverage: Parlement de Flandre
description: issued: 17/02/2019
Supplementary document for Hydrogen bond network dynamics of heavy water resolved by alcohol hydration under intense laser - 6184869.pdf
Creators: name: Wang, Ying
name: Hu, JunYing
name: wang, haixin
name: Ye, Yangyang
name: sun, chenglin
name: shenghan, wang
name: men, zhiwei
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Spontaneous Raman Spectroscopy of Methanol and Stimulated Raman Spectroscopy of Methanol-D2O Mixed System
Heat Removal of a Protection Chip after Surge Pulse
Creators: name: Graf, Thomas
name: Schälli, Othmar
name: Stössel, Zeno
Publisher: name: Zenodo
Year: 2011
Subjects: Electro-magnetic compatibility (EMC)
finite element modeling (FEM)
highvoltage surge pulse
chip heating

description: Sensors for industrial and automotive applications require electro- magnetic compatibility protection elements. It is an advantage to incorporate the protection elements directly in the application specific integrated circuit (ASIC). These protection elements however experience significant electrical stress and extensive heating on a short time-scale. It was therefore impossible to apply the conventional IC design process. We established new design rules. For this we first had to understand and quantify the device heating. To do so we used the finite element method (FEM) to model the surge pulse in a protection circuit of a test chip.Owing to our results, the company HMT microelectronic AG at Bienne (Switzerland) was able to integrate high-voltage surge pulse protection elements directly in their ASIC designs. This innovation has met wide acclaim within the sensor industry. A decisive factor for this success was our thermal compact which led to new IC design rules.
description: + ID der Publikation: hslu_97087 + Art des Beitrages: Präsentation Konferenzpapier/Tagungsbeitrag + Sprache: Englisch + Letzte Aktualisierung: 2024-05-16 10:23:28
Fully compensated Kondo effect for a two-channel spin S=1 impurity
Creators: name: Blesio, G. G.
name: Manuel, L. O.
name: Aligia, A. A.
name: Roura-Bas, P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the low-temperature properties of the generalized Anderson impurity model in which two localized configurations, one with two doublets and the other with a triplet, are mixed by two degenerate conduction channels. By using the numerical renormalization group and the non-crossing approximation, we analyze the impurity entropy, its spectral density, and the equilibrium conductance for several values of the model parameters. Marked differences with respect to the conventional one-channel spin $s=1/2$ Anderson model, that can be traced as hallmarks of an impurity spin $S=1$, are found in the Kondo temperature, the width and position of the charge transfer peak, as well as the temperature dependence of the equilibrium conductance. Furthermore, we analyze the rich effects of a single-ion magnetic anisotropy $D$ on the Kondo behavior. In particular, as shown before, for large enough positive $D$ the system behaves as a "non-Landau" Fermi liquid that cannot be adiabatically connected to a non-interacting system turning off the interactions. For negative $D$ the Kondo effect is strongly suppressed. The model studied is suitable for a comprehensive analysis for recent investigations of a single Ni impurity embedded into an Au chain.
description: 15 pages, 14 figures
Hyperbranched Polyglycerol Derivatives as Prospective Copper Nanotransporter Candidates
Creators: name: Quadir, Mohiuddin
name: Fehse, Susanne
name: Multhaup, Gerhard
name: Haag, Rainer
Publisher: name: Freie Universität Berlin
Year: 2018
Subjects: subject: hyperbranched polyglycerol
subject: nanocarrier
subject: ion transport
subject: Cu-deficiency disorders
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::572 Biochemie

description: Hyperbranched polyglycerol (hPG) has been used as a multivalent scaffold to develop a series of nanocarriers capable of high-affinity encapsulation of copper (Cu). A rationally selected set of Cu-complexing motifs has been conjugated to hPG hydroxyl groups to render the constructs potentially usable as exogenous sources of Cu for addressing different pathological conditions associated with Cu-deficiency. We have utilized a newly discovered route to attach Cu-binding domains exclusively within a hPG core by selective differentiation between the primary and secondary hydroxyl groups of the polyol. These hPG-derivatives were found to form a stable complex with Cu ions depending on the type of immobilized ligands and corresponding degree of functionalization. In addition, these Cu-bearing nano-complexes demonstrated moderately cationic surface charge resulting in adjustable protein-binding characteristics and low cellular toxicity profile. We envision that these Cu-loaded hPG nanocarriers can be used as a stable platform to transport the metal ion across the systemic circulation to supply bioavailable quantity of Cu in disease-afflicted tissues.
Oscillations of the superconducting critical current in Nb-Cu-Ni-Cu-Nb junctions
Creators: name: Blum, Y.
name: Tsukernik, A.
name: Karpovski, M.
name: Palevski, A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report on experimental studies of superconductor-ferromagnet layered structures. Strong oscillations of the critical supercurrent were observed with the thickness variation of the ferromagnet. Using known microscopic parameters of Ni, we found reasonable agreement between the period of oscillations and the decay of the measured critical current, and theoretical calculations.
description: 5 pages
Horizon scanning for alien predatory crabs: insights from South Africa
Creators: name: C Swart
name: TB Robinson
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Due to the presence of few dominant predators on South African rocky shores, this coastline could be vulnerable to invasion by predatory crabs. This study applied horizon scanning to create an ordered watch list of alien crab species that could establish along this coastline under present-day and future temperature scenarios. This was done by: (i) identifying the species with both an invasion history and a possible pathway to South Africa; (ii) comparing the temperature ranges of the species’ native and introduced distributions to those of each of the four South African ecoregions; and (iii) ranking the species based on their potential ecological impacts. Of the 56 alien predatory crab species known worldwide, 28 species have pathways to South Africa. Incompatible temperature ranges excluded only two species from each ecoregion. Negative ecological impacts in their invaded ranges placed Japanese shore crab Hemigrapsus sanguineus, brush-clawed shore crab H. takanoi and Chinese mitten crab Eriocheir sinensis at the top of the watch list. This study highlights that many alien crab species have the potential to reach South Africa, with most likely to survive. This watch list should be used to support targeted monitoring and so facilitate early detection of these species, should they reach South Africa.