cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Approximating the Schur multiplier of certain infinitely presented groups via nilpotent quotients
Creators: name: Hartung, René
Publisher: name: arXiv
Year: 2011
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20-04, 20F05, 20F14

description: We describe an algorithm for computing successive quotients of the Schur multiplier $M(G)$ for a group $G$ given by an invariant finite $L$-presentation. As application, we investigate the Schur multipliers of various self-similar groups such as the Grigorchuk super-group, the generalized Fabrykowski-Gupta groups, the Basilica group and the Brunner-Sidki-Vieira group.
Alloperla natchez Surdick & Stark
Creators: name: Willett, Michele R.
name: Stark, Bill P.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Chloroperlidae
Alloperla
Alloperla natchez

description: Alloperla natchez Surdick & Stark (Figs. 25-30) Alloperla natchez Surdick & Stark, 1980:71. Holotype ♂ (United States National Museum), Little Sand Creek, Natchez Trace Parkway, Claiborne Co., Mississippi Alloperla natchez: Brown & Stark, 1995:122. Description of nymph and egg Alloperla natchez: Hardy et al., 1994:368. Distribution Alloperla natchez: Surdick, 2004:18. Redescription Material examined. MS: Claiborne Co., Ragsdale Creek, Regan Rd, 17 April 1993, B. Stark, 9 ♂, 7 ♀ (BPS). Franklin Co., Mill Branch, Homochitto National Forest, 14 May 1993, N. Phiefer, 2 ♂, 19 ♀ (BPS). Franklin Co., tributary of Porter Creek, 13 April 1993, C. Hardy, C. Boll, 9 ♂, 6 ♀ (BPS). Smith Co., Clear Creek, 3 mi SW Mize, 24 April 1991, B. Stark, D. Tanner, 1 ♂, 5 ♀ (BPS). Epiproct. Length from base to fork, ca. 101 μm. Greatest pre-apical width, ca. 28 μm; apical width, ca. 27 μm. Cowl reaching almost to base of epiproct fork (Figs. 25-26). Epiproct dorsum completely bare (Figs. 27, 30), but apical third armed with irregular lateral rows of large, ventrolaterally directed setae (Figs. 26- 29). Width relatively uniform from base to beyond midlength, but gradually narrowed in apical third to base of fork (Figs. 26-27). Arms of fork project downward in lateral and frontal aspects (Figs. 28-29).
description: Published as part of Willett, Michele R. & Stark, Bill P., 2009, The Alloperla Leonarda Group Of Eastern North America, With Sem Images Of Four Out-Group Species (Plecoptera: Chloroperlidae), pp. 108-127 in Illiesia 5 (11) on page 112, DOI: 10.5281/zenodo.4759290
description: {"references": ["Surdick, R. F. & B. P. Stark. 1980. Two new species of Chloroperlidae (Plecoptera) from Mississippi. Proceedings of the Entomological Society of Washington, 82: 69 - 73.", "Brown, L. D. & B. P. Stark. 1995. Nymphs and eggs of Alloperla natchez and Haploperla chukcho (Plecoptera: Chloroperlidae). Journal of the Kansas Entomological Society, 68: 120 - 125.", "Hardy, C. L., B. P. Stark, C. F. Boll, N. C. Phifer & W. T. Tharpe. 1994. A survey for stoneflies in the Homochitto National Forest, Southwest Mississippi. Proceedings of the Annual Conference", "Surdick, R. F. 2004. Chloroperlidae (The Sallflies). Pp. 1 - 60 in. B. P. Stark & B. J. Armitage (eds.). Stoneflies (Plecoptera) of eastern North America. Volume II. Chloroperlidae, Perlidae, and Perlodidae (Perlodinae). Bulletin of the Ohio Biological Survey, New Series, Volume 14. Ohio Biological Survey, Columbus. 192 pp."]}
Alloperla ouachita Stark & Stewart. The 1983
Creators: name: Willett, Michele R.
name: Stark, Bill P.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Chloroperlidae
Alloperla
Alloperla ouachita

description: Alloperla ouachita Stark & Stewart (Figs. 31-36) Alloperla ouachita Stark & Stewart in Stark et al., 1983:56. Holotype ♂ (United States National Museum), Little Missouri River, Montgomery Co., Arkansas Alloperla ouachita: Surdick, 2004:19. Redescription Material examined. AR: Montgomery Co., Little Missouri River, 20 June 1980, J.W. Feminella, 5 ♂ paratypes (KWS, BPS). Epiproct. Length from base to apex, ca. 151 μm. Greatest pre-apical width, ca. 86 μm; apical width, ca. 109 μm. Cowl length exceeding apex of epiproct (Figs. 31-32, 34). Epiproct hairy along rounded dorsomedian keel, but bare along flanged lateral margins (Figs. 32-33, 35-36); ventrolaterally directed setae inconspicuous but present near apex. Lateral margins strongly divergent from basal fusion point with cowl, but narrowed abruptly at base of apical spines. Apex capped with smooth sclerite, clearly offset from body of epiproct by a narrow groove (Figs. 33-34); apex bears a pair of large, laterally directed, curved horns (Figs. 32-33, 35) and, in some specimens, a smaller pair of dorsomedian projections.
description: Published as part of Willett, Michele R. & Stark, Bill P., 2009, The Alloperla Leonarda Group Of Eastern North America, With Sem Images Of Four Out-Group Species (Plecoptera: Chloroperlidae), pp. 108-127 in Illiesia 5 (11) on page 117, DOI: 10.5281/zenodo.4759290
description: {"references": ["Stark, B. P., K. W. Stewart & J. Feminella. 1983. New records and descriptions of Alloperla (Plecoptera: Chloroperlidae) from the Ozark-Ouachita region. Entomological News, 94: 55 - 59.", "Surdick, R. F. 2004. Chloroperlidae (The Sallflies). Pp. 1 - 60 in. B. P. Stark & B. J. Armitage (eds.). Stoneflies (Plecoptera) of eastern North America. Volume II. Chloroperlidae, Perlidae, and Perlodidae (Perlodinae). Bulletin of the Ohio Biological Survey, New Series, Volume 14. Ohio Biological Survey, Columbus. 192 pp."]}
Alloperla prognoides Surdick & Stark
Creators: name: Willett, Michele R.
name: Stark, Bill P.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Chloroperlidae
Alloperla
Alloperla prognoides

description: Alloperla prognoides Surdick & Stark (Figs. 37-42) Alloperla furcula: Stark & Harris, 1986:177. Not Surdick, 1981. Alloperla prognoides Surdick & Stark in Surdick, 2004:20. Holotype ♂ (United States National Museum), Little River, Hwy 59, Baldwin Co., Alabama Material examined. AL: Autauga Co., Autauga Creek, Hwy 20, 31 May 1985, S.C. Harris, paratype ♂ (BPS). Baldwin Co., Little River, Hwy 59, 27 April 1985, S.C. Harris, paratype ♂ (BPS). Epiproct. Length from base to fork, ca. 120 μm. Greatest pre-apical width, ca. 46 μm; apical width, ca. 65 μm. Cowl reaching almost to tips of epiproct (Figs. 37-38, 40). Epiproct bare except for small basal patch (Fig. 42), and ventrolaterally directed rows of long lateral setae near apex (Figs. 38-39, 40). Width greatest near base, and gradually narrowed to base of fork; arms of fork long and thin and directed downward (Figs. 39, 40-41).
description: Published as part of Willett, Michele R. & Stark, Bill P., 2009, The Alloperla Leonarda Group Of Eastern North America, With Sem Images Of Four Out-Group Species (Plecoptera: Chloroperlidae), pp. 108-127 in Illiesia 5 (11) on page 117, DOI: 10.5281/zenodo.4759290
description: {"references": ["Stark, B. P. & S. C. Harris. 1986. Records of stoneflies (Plecoptera) in Alabama. Entomological News, 97: 177 - 182.", "Surdick, R. F. 1981. New Nearctic Chloroperlidae (Plecoptera). Great Basin Naturalist, 41: 349 - 359.", "Surdick, R. F. 2004. Chloroperlidae (The Sallflies). Pp. 1 - 60 in. B. P. Stark & B. J. Armitage (eds.). Stoneflies (Plecoptera) of eastern North America. Volume II. Chloroperlidae, Perlidae, and Perlodidae (Perlodinae). Bulletin of the Ohio Biological Survey, New Series, Volume 14. Ohio Biological Survey, Columbus. 192 pp."]}
Viscous dark energy and generalized second law of thermodynamics
Creators: name: Setare, M. R.
name: Sheykhi, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We examine the validity of the generalized second law of thermodynamics in a non-flat universe in the presence of viscous dark energy. At first we assume that the universe filled only with viscous dark energy. Then, we extend our study to the case where there is an interaction between viscous dark energy and pressureless dark matter. We examine the time evolution of the total entropy, including the entropy associated with the apparent horizon and the entropy of the viscous dark energy inside the apparent horizon. Our study show that the generalized second law of thermodynamics is always protected in a universe filled with interacting viscous dark energy and dark matter in a region enclosed by the apparent horizon. Finally, we show that the the generalized second law of thermodynamics is fulfilled for a universe filled with interacting viscous dark energy and dark matter in the sense that we take into account the Casimir effect.
description: 12 pages
Why legitimacy eludes : going beyond the procedural versus substantive distinction to explain legitimacy deficit in international organizations
Creators: name: Sergeeva, Galina
Publisher: name: University of British Columbia
Year: 2014

description: The paper examines the concept of legitimacy, its different forms and the way it is related to conceptions of international society. It argues that the legitimacy of international organizations will decline if the relevant audience splits in its perceptions of what is legitimate. In cases where different members of the audience develop incompatible conceptions of legitimacy, institutional solutions to the resulting legitimacy crisis will have limited potential. In these cases, even procedural legitimacy may be out of reach because of fundamental disagreements over even the minimal terms of cooperation. The paper applies this theoretical argument to the case study of the United Nations Commission on Human Rights (CHR, or the Commission) and its reform. It finds that the CHR’s legitimacy crisis was precipitated by the change in the normative environment of the international society after the end of the Cold War. As a result of this shift, some members of the CHR developed a substantive understanding of input and output legitimacy, while others promoted a neutral understanding of legitimacy. Because the Commission’s members held incompatible conceptions of what is legitimate and because none were satisfied with the status quo, the CHR’s legitimacy declined. Furthermore, institutional solutions to the legitimacy crisis in this case proved ineffective. Because the shift affected both input and output legitimacies, compromise even on strictly procedural aspects became impossible. As a result, the CHR’s reform did not address legitimacy concerns and the United Nations Human Rights Council suffers from the same “credibility deficit” (General Assembly A/59/2005, 2005) as the abolished Commission.
Cometary shaped sources at the Galactic Center - Evidence for a wind from the central 0.2 pc
Creators: name: Muzic, K.
name: Eckart, A.
name: Schoedel, R.
name: Buchholz, R.
name: Zamaninasab, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In 2007 we reported two cometary shaped sources in the vicinity of Sgr A* (0.8" and 3.4" projected distance), named X7 and X3. The symmetry axes of the two sources are aligned to within 5 degrees in the plane of the sky and the tips of their bow-shocks point towards Sgr A*. Our measurements show that the proper motion vectors of both features are pointing in directions more than 45 deg away from the line that connects them with Sgr A*. This misalignment of the bow-shock symmetry axes and their proper motion vectors, combined with the high proper motion velocities of several 100 km/s, suggest that the bow-shocks must be produced by an interaction with some external fast wind, possibly coming from Sgr A*, or stars in its vicinity. We have developed a bow-shock model to fit the observed morphology and constrain the source of the external wind. The result of our modeling allows us to estimate the velocity of the external wind, making sure that all likely stellar types of the bow-shock stars are considered. We show that neither of the two bow-shocks (one of which is clearly associated with a stellar source) can be produced by influence of a stellar wind of a single mass-losing star in the central parsec. Instead, an outflow carrying a momentum comparable to the one contributed by the ensemble of the massive young stars, can drive shock velocities capable of producing the observed cometary features. We argue that a collimated outflow arising perpendicular to the plane of the clockwise rotating stars (CWS), can easily account for the two features and the mini-cavity. However, the collective wind from the CWS has a scale of >10''. The presence of a strong, mass-loaded outbound wind at projected distances from Sgr A* of <1'' is in fact in agreement with models that predict a highly inefficient accretion onto the central black hole due to a strongly radius dependent accretion flow.
description: to appear in A&A
ความแตกต่างในการคุ้มครองทรัพย์สินทางปัญญาในอาเซียน
Creators: name: อัจฉริยา วงษ์บูรณาวาทย์
Publisher: name: สำนักวิชานิติศาสตร์ มหาวิทยาลัยแม่ฟ้าหลวง
Year: 2562
Subjects: ทรัพย์สินทางปัญญา
อาเซียน
ช่องว่างของการพัฒนา
ความแตกต่าง
การคุ้มครอง

description: วารสารนิติศาสตร์ มหาวิทยาลัยแม่ฟ้าหลวง, 2, 2, 133-144
Fundamental solitons in discrete lattices with a delayed nonlinear response
Creators: name: Maluckov, A.
name: Hadzievski, Lj.
name: Malomed, B. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The formation of unstaggered localized modes in dynamical lattices can be supported by the interplay of discreteness and nonlinearity with a finite relaxation time. In rapidly responding nonlinear media, on-site discrete solitons are stable, and their broad inter-site counterparts are marginally stable, featuring a virtually vanishing real instability eigenvalue. The solitons become unstable in the case of the slowly relaxing nonlinearity. The character of the instability alters with the increase of the delay time, which leads to a change in the dynamics of unstable discrete solitons. They form robust localized breathers in rapidly relaxing media, and decay into oscillatory diffractive pattern in the lattices with a slow nonlinear response. Marginally stable solitons can freely move across the lattice.
description: 8 figures
ก้าวแรกสู่ประสบการณ์การทำงานในสำนักงานกฎหมาย ณ ประเทศสหรัฐอเมริกา
Creators: name: สิตานันท์ ศรีวรกร
Publisher: name: สำนักวิชานิติศาสตร์ มหาวิทยาลัยแม่ฟ้าหลวง
Year: 2562
Subjects: ประสบการณ์การทำงาน
สำนักงานกฎหมาย
สหรัฐอเมริกา
ทนายความไทยในต่างแดน

description: วารสารนิติศาสตร์ มหาวิทยาลัยแม่ฟ้าหลวง, 2, 2, 145-154
چشم انداز چاپگرهای سه بعدی در بازسازی و زیست تقلید غضروف بینی
Creators: name: Toosizadeh Khorasani, Fatemeh
name: Fakhraei, Omid
name: Rostamani, Hosein
Publisher: name: figshare
Year: 2023
Subjects: Additive manufacturing
Regenerative medicine (incl. stem cells)
Bioprocessing, bioproduction and bioproducts

description: Link: https://civilica.com/doc/1639206/
DDFT calibration and investigation of an anisotropic phase-field crystal model
Creators: name: Choudhary, Muhammad Ajmal
name: Li, Daming
name: Emmerich, Heike
name: Löwen, Hartmut
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The anisotropic phase-field crystal model recently proposed and used by Prieler et al. [J. Phys.: Condens. Matter 21, 464110 (2009)] is derived from microscopic density functional theory for anisotropic particles with fixed orientation. Further its morphology diagram is explored. In particular we investigated the influence of anisotropy and undercooling on the process of nucleation and microstructure formation from atomic to the microscale. To that end numerical simulations were performed varying those dimensionless parameters which represent anisotropy and undercooling in our anisotropic phase-field crystal (APFC) model. The results from these numerical simulations are summarized in terms of a morphology diagram of the stable state phase. These stable phases are also investigated with respect to their kinetics and characteristic morphological features.
description: It contain 13 pages and total of 7 figures
Transversal electric field effect in multilayer graphene nanoribbon
Creators: name: kumar, S. Bala
name: Guoa, Jing
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the effect of transversal electric-field (E-field) on the electronic properties of multilayer armchair-graphene-nanoribbon (AGNR). The bandgap in multilayer-AGNRs can be reversibly modulated with the application of E-field. At optimized widths, we obtain a semiconductor (SC) to metallic (M), as well as M-SC transition. The AGNR electronic bands undergo vivid transformations due to the E-field, leading to phenomena such as increase in electron velocity, change in the sign of the electron effective mass, and the formation of linear dispersion with massless Dirac fermions similar to 2D-graphene. These effects are very useful and can be utilized for device applications.
description: 8pages, 3 fig
RUSTAMXON DOSTONIDA XAT MOTIVI
Creators: name: Boltayeva, Iroda
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada “Rustamxon” dostoni syujetidagi xat motivining ahamiyati tahlil qilinadi. Dostonda kundoshlar tomonidan yozdirilgan bu xat Sultonxonni aldash va Xuroyimni yomonotliq qilish vositasi sifatida namoyon bo‘ladi. Xatning mazmuni va uning qahramonlar taqdiriga ta’siri o‘rganilib, u syujetni rivojlantirishdagi kalit omil sifatida tahlil qilinadi. Shuningdek, dostondagi xat motivining an’anaviy adabiy usuldagi o‘rni ham yoritiladi.
Alloperla aracoma Harper & Kirchner
Creators: name: Willett, Michele R.
name: Stark, Bill P.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Chloroperlidae
Alloperla
Alloperla aracoma

description: Alloperla aracoma Harper & Kirchner (Figs. 43-48) Alloperla aracoma Harper & Kirchner, 1978:403. Holotype ♂ (United States National Museum), Frogtown Hollow of Copperas Mine Fork of Island Creek, Holden, Logan Co., West Virginia Alloperla aracoma: Surdick, 2004:10. Redescription and distribution update Material examined. WV: Logan Co., Frogtown Hollow of Copperas Mine Fork, Holden, 10 May 1980, R.F. Kirchner, 4 ♂, 4 ♀ (BPS). Epiproct. Length, ca. 220 μm. Greatest width, ca. 66 μm. Epiproct cowl without enlarged lobes (Figs. 43- 44, 48). Epiproct slightly constricted beyond base, then gradually widened to subapical part of bare area and constricted slightly proximal to pair of short, anterolateral projections. Dorsal surface covered with dense, appressed setal mat, except for apical and basal bare areas (Figs. 45-48); lateral margins with many setae projecting posterolaterally giving a shaggy appearence. Apex in lateral and frontal aspect (Figs. 46-47) bearing a series of ca. 8 serrae; dorsal pair of serrae form the anterolateral projections visible in Figs. 43-45. Remarks. The dorsal aspect of the epiproct of A. aracoma is generally similar to that of A. leonarda as noted by Harper & Kirchner (1978), however A. aracoma lacks the enlarged cowl found in A. leonarda and the presence of anterolateral serrae on the epiproct tip clearly separate this species from members of the A. leonarda group. A single male specimen collected by the junior author from Devils Fork, Scott Co., Virginia in 1997 may represent an undescribed sister species to A. aracoma.
description: Published as part of Willett, Michele R. & Stark, Bill P., 2009, The Alloperla Leonarda Group Of Eastern North America, With Sem Images Of Four Out-Group Species (Plecoptera: Chloroperlidae), pp. 108-127 in Illiesia 5 (11) on page 117, DOI: 10.5281/zenodo.4759290
description: {"references": ["Harper, P. P. & R. F. Kirchner. 1978. A new stonefly from West Virginia (Plecoptera: Chloroperlidae). Proceedings of the Entomological Society of Washington, 80: 403 - 406.", "Surdick, R. F. 2004. Chloroperlidae (The Sallflies). Pp. 1 - 60 in. B. P. Stark & B. J. Armitage (eds.). Stoneflies (Plecoptera) of eastern North America. Volume II. Chloroperlidae, Perlidae, and Perlodidae (Perlodinae). Bulletin of the Ohio Biological Survey, New Series, Volume 14. Ohio Biological Survey, Columbus. 192 pp."]}
Time operators in stroboscopic wavepacket basis and the time scales in tunneling
Creators: name: Bokes, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate that the time operator that measures the time of arrival of a quantum particle into chosen state can be defined as a self-adjoint quantum-mechanical operator using periodic boundary conditions on applied to wavefuncions in energy representation. The time becomes quantized into discreet eigenvalues and the eigenstates of the time operator, the stroboscopic wavepackets introduced recently [Phys. Rev. Lett. 101, 046402 (2008).] form orthogonal system of states. The formalism provides simple physical interpretation of the time-measurement process and direct construction of normalized, positive definite probability distribution for the quantized values of the arrival time. The average value of the time is equal to the phase time but in general depends on the choise of zero time eigenstate, whereas the uncertainity of the average is related to the traversal time and is independent of this choise. The general fromalism is applied to a particle tunneling through resonant tunneling barrier in 1D.
description: 6 pages, 4 figs
Alloperla atlantica Baumann 1974
Creators: name: Willett, Michele R.
name: Stark, Bill P.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Chloroperlidae
Alloperla
Alloperla atlantica

description: Alloperla atlantica Baumann (Figs. 49-54) Alloperla atlantica Baumann, 1974:260. Holotype ♂ (United States National Museum), Fishing Creek, Frederick Co., Maryland Alloperla atlantica: Surdick, 2004:11. Redescription and distribution update Material examined. AL: Clarke Co., Fishers Creek, Whatley, 30 April 1986, S.C. Harris, P. O’Neil, 9 ♂, 2 ♀ (BPS). Randolph Co., Cutnose Creek, Hwy 48, 20 May 1984, S.C. Harris, P. Lago, 4 ♂, 3 ♀ (BPS). GA: Fannin Co., Cutcane Creek, Cutcane Road, 19 July 2008, M. Willett, 1 ♂ (BPS). NC: Macon Co., Tellico Creek, Tellico Rd, 27 May 1993, B. Stark, R. Simmons, D. Kelly, 1 ♂, 3 ♀ (BPS). TN: Sevier Co., Little River, Great Smoky Mountains National Park, Sinks area, 25 April 1976, T. Wolff, B. Beavill, 1 ♂, 1 ♀ (BPS). Epiproct. Length from base to tip, ca. 240 μm. Greatest width, ca. 58 μm. Epiproct cowl without enlarged lobes extending beyond epiproct base (Figs. 49-50, 52). Epiproct gradually narrowed from base to tip (Figs. 49-53), apex pointed and bent ventrad (Figs. 52-53). Dorsum covered with dense, appressed, setal mat but apex and venter bare (Figs. 51-54).
description: Published as part of Willett, Michele R. & Stark, Bill P., 2009, The Alloperla Leonarda Group Of Eastern North America, With Sem Images Of Four Out-Group Species (Plecoptera: Chloroperlidae), pp. 108-127 in Illiesia 5 (11) on pages 117-121, DOI: 10.5281/zenodo.4759290
description: {"references": ["Baumann, R. W. 1974. What is Alloperla imbecilla (Say)? Designation of a neotype, and a new Alloperla from eastern North America (Plecoptera: Chloroperlidae). Proceedings of the Biological Society of Washington, 87: 257 - 264.", "Surdick, R. F. 2004. Chloroperlidae (The Sallflies). Pp. 1 - 60 in. B. P. Stark & B. J. Armitage (eds.). Stoneflies (Plecoptera) of eastern North America. Volume II. Chloroperlidae, Perlidae, and Perlodidae (Perlodinae). Bulletin of the Ohio Biological Survey, New Series, Volume 14. Ohio Biological Survey, Columbus. 192 pp."]}
Atomic clocks with suppressed blackbody radiation shift
Creators: name: Yudin, V. I.
name: Taichenachev, A. V.
name: Okhapkin, M. V.
name: Bagayev, S. N.
name: Tamm, Chr.
name: Peik, E.
name: Huntemann, N.
name: Mehlstaubler, T. E.
name: Riehle, F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a nonstandard concept of atomic clocks where the blackbody radiation shift (BBRS) and its temperature fluctuations can be dramatically suppressed (by one to three orders of magnitude) independent of the environmental temperature. The suppression is based on the fact that in a system with two accessible clock transitions (with frequencies v1 and v2) which are exposed to the same thermal environment, there exists a "synthetic" frequency v_{syn} (v1-e12 v2) largely immune to the BBRS. As an example, it is shown that in the case of ion 171Yb+ it is possible to create a clock in which the BBRS can be suppressed to the fractional level of 10^{-18} in a broad interval near room temperature (300\pm 15 K). We also propose a realization of our method with the use of an optical frequency comb generator stabilized to both frequencies v1 and v2. Here the frequency v_{syn} is generated as one of the components of the comb spectrum and can be used as an atomic standard.
description: 5 pages, 2 figures
Alloperla biserrata Nelson & Kondratieff
Creators: name: Willett, Michele R.
name: Stark, Bill P.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Chloroperlidae
Alloperla
Alloperla biserrata

description: Alloperla biserrata Nelson & Kondratieff (Figs. 55-60) Alloperla biserrata Nelson & Kondratieff, 1980:802. Holotype ♂ (United States National Museum), tributary Craigs Creek, CR 621, Montgomery Co., Virginia Alloperla biserrata: Surdick, 2004:12. Redescription and distribution update Material examined. VA: Montgomery Co., tributary Craigs Creek, CR 621, 5 June 1983, B.C. Kondratieff, 5 ♂, 1 ♀ (BPS). Epiproct. Length from base to tip, ca. 178 μm. Width near base, ca. 40 μm; width near midlength, ca. 19 μm. Thickness through basal tooth, ca. 42 μm. Epiproct cowl without enlarged lobes. Epiproct widest near base, abruptly narrowed near midlength and only slightly narrowed to tip (Fig. 56). Dorsum covered with closely appressed setal mat for about half of length, but apical half and basolateral areas bare (Figs. 55-57, 60); apical half bearing prominent setal patches in lateral aspect (Figs. 58-59), venter bare to base. Apex bearing a shallow notch in dorsal and frontal aspects and bearing six prominent teeth laterally (Figs. 58-59).
description: Published as part of Willett, Michele R. & Stark, Bill P., 2009, The Alloperla Leonarda Group Of Eastern North America, With Sem Images Of Four Out-Group Species (Plecoptera: Chloroperlidae), pp. 108-127 in Illiesia 5 (11) on page 121, DOI: 10.5281/zenodo.4759290
description: {"references": ["Nelson, C. H. & B. C. Kondratieff. 1980. Description of a new species of Alloperla (Plecoptera: Chloroperlidae) from Virginia. Journal of the Kansas Entomological Society, 53: 801 - 804.", "Surdick, R. F. 2004. Chloroperlidae (The Sallflies). Pp. 1 - 60 in. B. P. Stark & B. J. Armitage (eds.). Stoneflies (Plecoptera) of eastern North America. Volume II. Chloroperlidae, Perlidae, and Perlodidae (Perlodinae). Bulletin of the Ohio Biological Survey, New Series, Volume 14. Ohio Biological Survey, Columbus. 192 pp."]}
VLT/NACO Polarimetric Differential Imaging of HD100546 - Disk Structure and Dust Grain Properties between 10-140 AU
Creators: name: Quanz, Sascha P.
name: Schmid, Hans Martin
name: Geissler, Kerstin
name: Meyer, Michael R.
name: Henning, Thomas
name: Brandner, Wolfgang
name: Wolf, Sebastian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present polarimetric differential imaging (PDI) data of the circumstellar disk around the Herbig Ae/Be star HD100546 obtained with VLT/NACO. We resolve the disk in polarized light in the H and Ks filter between ~0.1-1.4" (i.e., ~10-140 AU). The innermost disk regions are directly imaged for the first time and the mean apparent disk inclination and position angle are derived. The surface brightness along the disk major axis drops off roughly with S(r) ~ r^-3 but has a maximum around 0.15" suggesting a marginal detection of the main disk inner rim at ~15 AU. We find a significant brightness asymmetry along the disk minor axis in both filters with the far side of the disk appearing brighter than the near side. This enhanced backward scattering and a low total polarization degree of the scattered disk flux of 14%(+19%/-8%) suggests that the dust grains on the disk surface are larger than typical ISM grains. Empirical scattering functions reveal the backward scattering peak at the largest scattering angles and a second maximum for the smallest scattering angles. This indicates a second dust grain population preferably forward scattering and smaller in size. It shows that, relatively, in the inner disk regions (40-50 AU) a higher fraction of larger grains is found compared to the outer disk regions (100-110 AU). Finally, our images reveal distinct substructures between 25-35 AU physical separation from the star and we discuss the possible origin for the two features in the context of ongoing planet formation.
description: Accepted for publication by ApJ
Next-to-leading order QCD effects and the top quark mass measurements at the LHC
Creators: name: Biswas, Sandip
name: Melnikov, Kirill
name: Schulze, Markus
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is anticipated that a number of techniques to measure the top quark mass at the LHC will yield m_top with uncertainties of about 0.5-1 percent. These uncertainties are mostly theoretical; they are usually estimated using parton shower Monte Carlo programs whose reliability at this level of precision is difficult to assess. The goal of this paper is to contrast those estimates with the results of NLO QCD computations for a few observables, often discussed in the context of high-precision top quark mass measurements at the LHC. In particular, we study the NLO QCD corrections to the invariant mass distribution of a charged lepton and a B-meson in lepton+jets channels. In the dilepton channel we investigate the invariant mass distribution of a charged lepton and a b-jet, the average energy of the two leptons and the average energy of the b-jets from top decays.
description: 18 pages, 8 figures, 3 tables
Vibronic Lineshapes of PTCDA Oligomers in Helium Nanodroplets
Creators: name: Roden, Jan
name: Eisfeld, Alexander
name: Dvorak, Matthieu
name: Buenermann, Oliver
name: Stienkemeier, Frank
Publisher: name: arXiv
Year: 2010
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Oligomers of the organic semiconductor PTCDA are studied by means of helium nanodroplet isolation (HENDI) spectroscopy. In contrast to the monomer absorption spectrum, which exhibits clearly separated, very sharp absorption lines, it is found that the oligomer spectrum consists of three main peaks having an apparent width orders of magnitude larger than the width of the monomer lines. Using a simple theoretical model for the oligomer, in which a Frenkel exciton couples to internal vibrational modes of the monomers, these experimental findings are nicely reproduced. The three peaks present in the oligomer spectrum can already be obtained taking only one effective vibrational mode of the PTCDA molecule into account. The inclusion of more vibrational modes leads to quasi continuous spectra, resembling the broad oligomer spectra.
Alloperla caudata Frison 1934
Creators: name: Willett, Michele R.
name: Stark, Bill P.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Chloroperlidae
Alloperla
Alloperla caudata

description: Alloperla caudata Frison Alloperla caudata Frison, 1934:27. Holotype ♂ (Illinois Natural History Survey), Adair Co., Oklahoma Alloperla caudata: Surdick, 2004:13. Redescription and distribution update Alloperla caudata: Baumann & Kondratieff, 2009:100. SEM of epiproct Images prepared by M.H. Lyon from the following material are in the Stark collection; additional images prepared recently from Mississippi specimens are very similar to those presented by Baumann & Kondratieff (2009). Material examined. AL: Colbert Co., Henson Creek, Hwy 49, 5 June 1985, S.C. Harris, 2 ♂, 4 ♀ (BPS). MO: La Clede Co., Brush Creek, Hwy PP, date not given, B.C. Poulton, 3 ♂ (BPS). MS: Tishomingo Co., Clear Creek, Hwy 172, 18 May 2009, B. Stark, 19 ♂, 14 ♀ (BPS). OK: Cherokee Co., Barron Fork Creek, 3 June 1984, W.D. Shepard, 1 ♂ (BPS). Epiproct. Length from base to tip, ca. 235-244 μm. Greatest width, ca. 90-109 μm. Greatest thickness, ca. 100 μm. Apical cap diameter, ca. 50 μm. Epiproct cowl without enlarged lobes but cowl extending almost to midlength; epiproct slightly widened from base to subapex, and slightly narrowed to bare apical cap; apex bearing a prominent, bare, sclerotized cap offset from body of epiproct by a groove, and not expanded on venter. Lateral aspect of epiproct inflated to apical third and narrowed beyond to cap. Entire surface of epiproct covered by a dense, closely appressed, setal mat. Remarks. The Mississippi specimens represent a new state record for this species.
description: Published as part of Willett, Michele R. & Stark, Bill P., 2009, The Alloperla Leonarda Group Of Eastern North America, With Sem Images Of Four Out-Group Species (Plecoptera: Chloroperlidae), pp. 108-127 in Illiesia 5 (11) on page 121, DOI: 10.5281/zenodo.4759290
description: {"references": ["Frison, T. H. 1934. Four new species of stoneflies from North America. Canadian Entomologist, 66: 25 - 30.", "Surdick, R. F. 2004. Chloroperlidae (The Sallflies). Pp. 1 - 60 in. B. P. Stark & B. J. Armitage (eds.). Stoneflies (Plecoptera) of eastern North America. Volume II. Chloroperlidae, Perlidae, and Perlodidae (Perlodinae). Bulletin of the Ohio Biological Survey, New Series, Volume 14. Ohio Biological Survey, Columbus. 192 pp.", "Baumann, R. W. & B. C. Kondratieff. 2009. A study of the eastern Nearctic Alloperla (Plecoptera: Chloroperlidae) with hirsute epiprocts using the scanning electron microscope. Illiesia, 5: 99 - 107."]}
A novel approach for accurate radiative transfer in cosmological hydrodynamic simulations
Creators: name: Petkova, Margarita
name: Springel, Volker
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a numerical implementation of radiative transfer based on an explicitly photon-conserving advection scheme, where radiative fluxes over the cell interfaces of a structured or unstructured mesh are calculated with a second-order reconstruction of the intensity field. The approach employs a direct discretisation of the radiative transfer equation in Boltzmann form with adjustable angular resolution that in principle works equally well in the optically thin and optically thick regimes. In our most general formulation of the scheme, the local radiation field is decomposed into a linear sum of directional bins of equal solid-angle, tessellating the unit sphere. Each of these "cone-fields" is transported independently, with constant intensity as a function of direction within the cone. Photons propagate at the speed of light (or optionally using a reduced speed of light approximation to allow larger timesteps), yielding a fully time-dependent solution of the radiative transfer equation that can naturally cope with an arbitrary number of sources, as well as with scattering. The method casts sharp shadows, subject to the limitations induced by the adopted angular resolution. If the number of point sources is small and scattering is unimportant, our implementation can alternatively treat each source exactly in angular space, producing shadows whose sharpness is only limited by the grid resolution. A third hybrid alternative is to treat only a small number of the locally most luminous point sources explicitly, with the rest of the radiation intensity followed in a radiative diffusion approximation. We have implemented the method in the moving-mesh code {\small AREPO}, where it is coupled to the hydrodynamics in an operator splitting approach that subcycles the radiative transfer alternatingly with the hydrodynamical evolution steps.
description: 20 pages, 23 figures, submitted to MNRAS
Physics and measurements of magnetic materials
Creators: name: Sgobba, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetic materials, both hard and soft, are used extensively in several components of particle accelerators. Magnetically soft iron-nickel alloys are used as shields for the vacuum chambers of accelerator injection and extraction septa; Fe-based material is widely employed for cores of accelerator and experiment magnets; soft spinel ferrites are used in collimators to damp trapped modes; innovative materials such as amorphous or nanocrystalline core materials are envisaged in transformers for high-frequency polyphase resonant convertors for application to the International Linear Collider (ILC). In the field of fusion, for induction cores of the linac of heavy-ion inertial fusion energy accelerators, based on induction accelerators requiring some 107 kg of magnetic materials, nanocrystalline materials would show the best performance in terms of core losses for magnetization rates as high as 105 T/s to 107 T/s. After a review of the magnetic properties of materials and the different types of magnetic behaviour, this paper deals with metallurgical aspects of magnetism. The influence of the metallurgy and metalworking processes of materials on their microstructure and magnetic properties is studied for different categories of soft magnetic materials relevant for accelerator technology. Their metallurgy is extensively treated. Innovative materials such as iron powder core materials, amorphous and nanocrystalline materials are also studied. A section considers the measurement, both destructive and non-destructive, of magnetic properties. Finally, a section discusses magnetic lag effects.
description: 25 pages, presented at the CERN Accelerator School CAS 2009: Specialised Course on Magnets, Bruges, 16-25 June 2009
Additional file 1 of Constructing fine-grained entity recognition corpora based on clinical records of traditional Chinese medicine
Creators: name: Zhang, Tingting
name: Wang, Yaqiang
name: Wang, Xiaofeng
name: Yang, Yafei
name: Ye, Ying
Publisher: name: figshare
Year: 2020
Subjects: Space Science
Medicine
Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Cancer

description: Additional file 1. Annotation guideline.
Residual Hubble-bubble effects on supernova cosmology
Creators: name: Sinclair, Benjamin
name: Davis, Tamara M.
name: Haugbolle, Troels
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Even in a universe that is homogeneous on large scales, local density fluctuations can imprint a systematic signature on the cosmological inferences we make from distant sources. One example is the effect of a local under-density on supernova cosmology. Also known as a Hubble-bubble, it has been suggested that a large enough under-density could account for the supernova magnitude- redshift relation without the need for dark energy or acceleration. Although the size and depth of under-density required for such an extreme result is extremely unlikely to be a random fluctuation in an on-average homogeneous universe, even a small under-density can leave residual effects on our cosmological inferences. In this paper we show that there remain systematic shifts in our cosmological parameter measure- ments, even after excluding local supernovae that are likely to be within any small Hubble-bubble. We study theoretically the low-redshift cutoff typically imposed by supernova cosmology analyses, and show that a low-redshift cut of z0 \sim 0.02 may be too low based on the observed inhomogeneity in our local universe. Neglecting to impose any low-redshift cutoff can have a significant effect on the cosmological pa- rameters derived from supernova data. A slight local under-density, just 30% under-dense with scale 70h^{-1} Mpc, causes an error in the inferred cosmological constant density ΩΛ of \sim 4%. Imposing a low-redshift cutoff reduces this systematic error but does not remove it entirely. A residual systematic shift of 0.99% remains in the inferred value ΩΛ even when neglecting all data within the currently pre- ferred low-redshift cutoff of 0.02. Given current measurement uncertainties this shift is not negligible, and will need to be accounted for when future measurements yield higher precision.
description: 12 pages, 11 figures. Accepted for publication in The Astrophysical Journal
Perceptions of experienced nurses to what influenced their decision to leave clinical practice
Creators: name: Hayward, Dana Alyson Marie
Publisher: name: University of British Columbia
Year: 2014

description: Nursing turnover (the loss of experienced nurses from a clinical setting) remains a pressing problem for healthcare delivery in acute care inpatient settings. Turnover contributes to increased recruitment and orientation cost, reduced quality patient care, and the loss of mentorship for new nurses. The purpose of this research was to critically examine the factors that contribute to turnover of experienced nurses’ including their decision to leave clinical practice settings and seek new employment in another nursing position. The study objectives were to explore experienced nurses’ decision-making processes in leaving current clinical practice settings and to examine the personal and environmental factors experienced nurses’ perceive that influenced their decision to leave. An interpretive descriptive approach was used to guide the study. Interviews were conducted with 12 nurses, averaging 16 years in clinical practice. Participants were equally represented from clinical units, which included critical care and medical-surgical areas. The sample drew on perspectives from point-of-care nurses and nurses in leadership roles, primarily charge nurses and clinical nurse educators. The findings indicated that nurses’ decisions to leave clinical practice were influenced by several interrelated environmental and personal factors such as higher patient acuity, increased workload demands, ineffective working relationships among nurses and with physicians, gaps in leadership support, and significant impact to nurses’ health and personal well-being. When participants experienced ineffective working relationships with other nurses and a lack of leadership support, they described being ill equipped to perform their job and reported a loss of job satisfaction. The impact of high stress was evident on the health and emotional well-being for those who stayed, and family relationships and lifestyles were adversely affected. It is vital that healthcare organizations learn to minimize turnover and retain the wealth of experienced nurses in acute care settings to maintain quality patient care and contain costs. The study highlights the need of healthcare leaders to reexamine how they promote collaborative practice, enhance supportive leadership behaviours, and reduce nurses’ workplace stressors in order to retain the wealth of skills and knowledge offered by experienced clinical practice nurses.
Raman signature of electron-electron correlation in chemically doped few-layer graphene
Creators: name: Bruna, Matteo
name: Borini, Stefano
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report an experimental Raman study of few-layer graphene after chemical doping achieved by a plasma process in CHF$_3$ gas. A systematic reduction of both the splitting and the area of the 2D band is observed with increasing the doping level. Both effects can be ascribed to the electron-electron correlation, which on the one hand reduces the electron-phonon coupling strength, and on the other hand affects the probability of the double resonant Raman process.
Epidemiologic investigation of an increase in postpartum hemorrhage
Creators: name: Mehrabadi, Azar
Publisher: name: University of British Columbia
Year: 2015

description: Increases in postpartum hemorrhage have been reported in several high income countries between 1991 and 2004. The purpose of this thesis was to investigate possible causes of recent increases in postpartum hemorrhage. Data sources included a population-based database of deliveries in British Columbia, Canada, between 2000 and 2009 (n=371,193), and a hospitalization database of deliveries in Canada (excluding Quebec) between 2003 and 2010 (n=2,193,425). Postpartum hemorrhage was defined as a blood loss of ≥500 mL for a vaginal delivery or ≥1000 mL for cesarean delivery or as a diagnosis noted by a health care provider. The influence of changes in risk factors on temporal trends in postpartum hemorrhage was studied using logistic regression. There was a significant increase in atonic postpartum hemorrhage in British Columbia from 4.8% in 2001 to 6.3% in 2009 (34% increase, 95% confidence interval [CI] 26-42%). This increase was not be explained by changes in the maternal, fetal and obstetric factors studied, including previously understudied factors such as maternal pre-pregnancy body mass index and labour augmentation with oxytocin. In Canada, rates of postpartum hemorrhage increased from 5.1% in 2003 to 6.2% in 2010 (22% increase, 95% CI 20% to 25%), driven by an increase in atonic postpartum hemorrhage. Placenta accreta was responsible for only a negligible fraction of postpartum hemorrhage. Temporal trends in severe postpartum hemorrhage in Canada showed a similar pattern; postpartum hemorrhage with blood transfusion increased from 36.7 in 2003 to 50.4 per 10,000 deliveries in 2010, while postpartum hemorrhage with hysterectomy increased from 4.9 to 5.8 per 10,000 deliveries over the same period. The temporal increase in postpartum hemorrhage did not explain a concurrent rise in obstetric acute renal failure in Canada. The increase in obstetric acute renal failure was restricted to women with hypertensive disorders of pregnancy. In summary, postpartum hemorrhage and severe postpartum hemorrhage continued to increase in Canada in recent years, and the maternal, fetal and obstetric factors studied did not explain the rise. Further studies are required to identify the role of other risk factors that may explain the observed increase in postpartum hemorrhage.