cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Typhlacontias punctatissimus subsp. bogerti Laurent 1964
Creators: name: Ceríaco, L. M. P.
name: De Sá, S.
name: Bandeira, S.
name: Valério, H.
name: Stanley, E. L.
name: Kuhn, A. L.
name: Marques, M. P.
name: Vindum, J. V.
name: Blackburn, D. C.
name: Bauer, A. M.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Scincidae
Typhlacontias
Typhlacontias punctatissimus
Typhlacontias punctatissimus bogerti laurent, 1964

description: BOGERT’S SPECKLED WESTERN BURROWING SKINK – Fig. 11
Typhlacontias punctatissimus bogerti Laurent, 1964
MATERIAL.— Espinheira, 29 November 2013, 16º47ʹ7.02ʺS, 12º21ʹ16.86ʺE, 457 m (CAS 254807); Pico Azevedo, 7 December 2013, 15º32ʹ2.4ʺS, 12º29ʹ31.1ʺE, 359 m (CAS 254932–254938), 15º32ʹ5.8ʺS, 12º29ʹ29.5ʺE, 366 m (CAS 254944–254945).
COMMENTS. — H a a c k e (1997) reviewed the taxonomic and nomenclatural history of Typhlacontias punctatissimus and its subspecies and recognized two sympatric subspecies in southern Angola — T. punctatissimus punctatissimus Bocage, 1873, and the Angolan endemic T. punctatissimus bogerti Laurent, 1964. In all of our specimens, the second and third upper labials are in contact with the eye and there is a second supraocular. Both characters fit the description presented by Haacke (1997) as diagnostic for T. punctatissimus bogerti. The species is known to be viviparous and one female specimen (CAS 254945) contains an almost fully developed neonate.
description: Published as part of Ceríaco, L. M. P., De Sá, S., Bandeira, S., Valério, H., Stanley, E. L., Kuhn, A. L., Marques, M. P., Vindum, J. V., Blackburn, D. C. & Bauer, A. M., 2016, Herpetological Survey of Iona National Park and Namibe Regional Natural Park, with a Synoptic List of the Amphibians and Reptiles of Namibe Province, Southwestern Angola, pp. 15-61 in Proceedings of the California Academy of Sciences 63 (2) on pages 30-31, DOI: 10.5281/zenodo.11066801
Trachylepis varia
Creators: name: Ceríaco, L. M. P.
name: De Sá, S.
name: Bandeira, S.
name: Valério, H.
name: Stanley, E. L.
name: Kuhn, A. L.
name: Marques, M. P.
name: Vindum, J. V.
name: Blackburn, D. C.
name: Bauer, A. M.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Scincidae
Trachylepis
Trachylepis varia

description: VARIABLE SKINK
Trachylepis varia (Peters, 1867)
MATERIAL.— Leba Pass, 5 December 2013, 15º4ʹ12.1ʺS, 13º14ʹ36.2ʺE, 1680 m (CAS 254874), 15º4ʹ13.2ʺS, 13º14ʹ37.7ʺE, 1676 m (CAS 254884).
COMMENTS.— The species occurs throughout Angola, with many records in the provinces of Benguela (Parker 1936; Bocage 1895, 1896; Monard 1937; Hellmich 1957a; Mertens 1938; Boulenger 1905) and Huila (Bocage 1895; Monard 1937). Although other records from Namibe are 12 km W of Humbia (TM 40128–29) and Chapeau Armado turnoff (TM 41131). This species is typically associated with relatively mesic microclimates and is, therefore, excluded from the hyperarid areas of Namibe. This skink has a broad distribution across much of sub-Saharan Africa and includes several cryptic species, two of which are present in Angola. There are records from across Angola and from all bordering countries as well. The phylogeography of the T. varia complex is presently under study (J. Weinell, pers. comm.).
description: Published as part of Ceríaco, L. M. P., De Sá, S., Bandeira, S., Valério, H., Stanley, E. L., Kuhn, A. L., Marques, M. P., Vindum, J. V., Blackburn, D. C. & Bauer, A. M., 2016, Herpetological Survey of Iona National Park and Namibe Regional Natural Park, with a Synoptic List of the Amphibians and Reptiles of Namibe Province, Southwestern Angola, pp. 15-61 in Proceedings of the California Academy of Sciences 63 (2) on page 31, DOI: 10.5281/zenodo.11066801
Trachylepis punctulata
Creators: name: Ceríaco, L. M. P.
name: De Sá, S.
name: Bandeira, S.
name: Valério, H.
name: Stanley, E. L.
name: Kuhn, A. L.
name: Marques, M. P.
name: Vindum, J. V.
name: Blackburn, D. C.
name: Bauer, A. M.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Scincidae
Trachylepis
Trachylepis punctulata

description: SPECKLED SAND SKINK – Fig. 12
Trachylepis punctulata (Bocage, 1872)
MATERIAL.— Espinheira, 29 November 2013, 16º47ʹ20.6ʺS, 12º21ʹ27.2ʺE, 457 m (CAS 254793); Namibe-Lubango road, road marker 59, 1.8 km west (by road) of Caraculo, on the north side of the road, 6 December 2013, 15º0ʹ55.1ʺS, 12º38ʹ32.8ʺE, 497 m (CAS 254903); Praia do Navio coastal dunes, ca 124 km SSW of Namibe, 8 December 2013, 16º16ʹ20.4ʺS, 11º49ʹ53.9ʺE, 8 m (CAS 254769–254771), 16º16ʹ39.3ʺS, 11º49ʹ20.5ʺE, 8 m (CAS 254775).
COMMENTS.— The species was originally described by Bocage based on material from “Rio Coroca, sur le littoral de Mossamedes, Angola ” (Bocage 1872). The type locality is presumably the region near the mouth of Curoca River, from the vicinity of Tombwa (formerly Porto Alexandre). Our specimens were collected among plants between dunes along the coast south of Tombwa, and these agree morphologically with the original description for the species. A comparison with the type material was impossible due to its destruction in the fire that destroyed the Lisbon Museum in 1978. Several uncatalogued specimens in the Museu Nacional de História Natural do Porto collected in 1905 by the Portuguese explorer Francisco Newton are congruent with the specimens collected by us. Newton’s specimens are still in their original jar and are labeled “Mossamedes” (presumably refering to the province as a whole, not the city of Mossamedes = Namibe). They are part of a collection of vertebrates that the explorer made in the region. The herpetological specimens were only partly studied and published upon (Ferreira 1904, 1906; Ceríaco et al. 2014), in contrast to the bird and mammals collections (Seabra 1906 a, 1906b, 1906c, 1906d, 1907). It is probable that these specimens are from Tombwa, as this was the main place where Newton collected while in the province (see bird records – Seabra 1906a). This is a common species in much of Namibia, Botswana, and central South Africa, as well as portions of Zambia, Zimbabwe, and Mozambique (Portik and Bauer 2012).
description: Published as part of Ceríaco, L. M. P., De Sá, S., Bandeira, S., Valério, H., Stanley, E. L., Kuhn, A. L., Marques, M. P., Vindum, J. V., Blackburn, D. C. & Bauer, A. M., 2016, Herpetological Survey of Iona National Park and Namibe Regional Natural Park, with a Synoptic List of the Amphibians and Reptiles of Namibe Province, Southwestern Angola, pp. 15-61 in Proceedings of the California Academy of Sciences 63 (2) on page 31, DOI: 10.5281/zenodo.11066801
SOYA O'SIMLIGINING QISHLOQ XO'JALIGIDAGI AHAMIYATI
Creators: name: Mamadiyarova, Ro'shana
Publisher: name: Zenodo
Year: 2025

description: Ushbu maqolada soya o'simligining qishloq xo'jaligidagi ahamiyati har tomonlama tahlil etilgan. Soyaning iqtisodiy, ekologik va oziq-ovqat xavfsizligini ta'minlashdagi o'rni, uning almashlab ekishdagi va tuproq unumdorligini oshirishdagi ahamiyati, shuningdek, O'zbekiston va dunyo miqyosida soya yetishtirish istiqbollari ko'rib chiqilgan. Adabiyotlar tahlili asosida soya ekinining qishloq xo'jaligida tutgan o'rni va uni kengaytirish imkoniyatlari to'g'risida xulosalar taqdim etilgan.
Trachylepis laevis Maconjo (Boulenger 1907
Creators: name: Ceríaco, L. M. P.
name: De Sá, S.
name: Bandeira, S.
name: Valério, H.
name: Stanley, E. L.
name: Kuhn, A. L.
name: Marques, M. P.
name: Vindum, J. V.
name: Blackburn, D. C.
name: Bauer, A. M.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Scincidae
Trachylepis
Trachylepis laevis

description: ANGOLAN BLUE-TAILED SKINK
Trachylepis laevis (Boulenger, 1907)
MATERIAL.— INP, north of Tambor, 4 December 2013, 15º59ʹ47.1ʺS. 12º24ʹ25.6ʺE, 314 m (CAS 254838).
COMMENTS.— The species was described by Boulenger from Maconjo, in northern Namibe Province (Boulenger 1907b). Laurent (1964a) recorded this species in Namibe Province from “Munhino 50 km west of Sá da Bandeira.” Hellmich (1957a) cited the species for Piri-Dembos, Kwanza Norte Province, but this record is dubious. The Ditsong National Natural History Museum houses numerous specimens from localities in Namibe and southern Benguela below the Escarpment. The species occurs also in the Kamanjab area and Damaraland in northwestern Namibia (Bauer et al. 1993). This lizard is extremely dorsoventrally depressed in association with its crevice dwelling habits and was, for a time, placed in a monotypic genus, Oelofisa, in recognition of its highly autapomorphic morphology (Steyn and Mitchell 1965).
description: Published as part of Ceríaco, L. M. P., De Sá, S., Bandeira, S., Valério, H., Stanley, E. L., Kuhn, A. L., Marques, M. P., Vindum, J. V., Blackburn, D. C. & Bauer, A. M., 2016, Herpetological Survey of Iona National Park and Namibe Regional Natural Park, with a Synoptic List of the Amphibians and Reptiles of Namibe Province, Southwestern Angola, pp. 15-61 in Proceedings of the California Academy of Sciences 63 (2) on page 33, DOI: 10.5281/zenodo.11066801
Parameters of the LEADER subsidy distribution with an institutional background in Hungary
Creators: name: Veselicz, Adél
name: Patkós, Csaba
name: Veselicz, Adél
name: Patkós, Csaba
Publisher: name: Unknown
Year: 2019
Subjects: subject: Community/Rural/Urban Development
subject: Public Economics
subject: Research Methods/ Statistical Methods
subject: LEADER
subject: subsidy distribution
subject: Local Action Group
subject: Hoover-index

description: The LEADER programme has been used for more than 20 years in the EU. Our paper examines 3 local action groups situated in the Hungarian Békés County. The objective of the paper is to examine them from an organizational/ institutional point of view. It is assumed that work organizations play a crucial role in the life of LAGs, and get an answer whether capabilities and territorial ties of their members have an effect on the existence and functioning of action groups. Moreover, personal interviews were made with administrative staff. Statistical data were collected from the website and integrated rural development strategies of LAGs and from the open database of the Hungarian Central Statistical Office These data were later used to prepare maps illustrating them. Hoover-index was used by the authors to conduct statistical calculations. The research findings suggest that the quality of local management organizations is of great importance to successfully strengthen local communities and governance. A local staff of adequate quantity and quality (education, salary) is indispensable. The geographical position and attachment of LAGs is a relevant factor in bottom-up rural development. Maybe, an EU-wide directive in this area can contribute to a more successful LEADER approach. The reseach results may help to improve the performance of the LEADER LAGs at a national or even the EU level.
On the nature of optical nuclei in FR I radio-galaxies from ACS/HST imaging polarimetry
Creators: name: Capetti, Alessandro
name: Axon, David J.
name: Chiaberge, Marco
name: Sparks, William B.
name: Macchetto, F. Duccio
name: Cracraft, Misty
name: Celotti, Annalisa
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We obtained optical imaging polarimetry with the ACS/HRC aboard the HST of the 9 closest radio-galaxies in the 3C catalogue with an FR I morphology. The nuclear sources seen in direct HST images in these galaxies are found to be highly polarized with levels in the range ~2-11 % with a median value of 7 %. We discuss the different mechanisms that produce polarized emission and conclude that the only viable interpretation is a synchrotron origin for the optical nuclei. This idea is strengthened by the analogy with the polarization properties of BL Lac objects, providing also further support to the FRI/BL Lac unified model. This confirms previous suggestions that the dominant emission mechanism in low luminosity radio-loud AGN is related to non-thermal radiation produced by the base of their jets. In addition to the nuclear polarization (and to the large scale optical jets), polarization is detected co-spatially with the dusty circumnuclear disks, likely due to dichroic transmission; the polarization vectors are tangential to the disks as expected when the magnetic field responsible for the grains alignment is stretched by differential rotation. We explored the possibility to detect the polarimetric signature of a misaligned radiation beam in FR I, expected in our sources in the frame of the FR I/ BL Lac unification. We did not find this effect in any of the galaxies, but our the results are not conclusive on whether a misaligned beam is indeed present in FR I.
description: 16 page, 10 figures, accepted for publication in A&A
Trachylepis acutilabris
Creators: name: Ceríaco, L. M. P.
name: De Sá, S.
name: Bandeira, S.
name: Valério, H.
name: Stanley, E. L.
name: Kuhn, A. L.
name: Marques, M. P.
name: Vindum, J. V.
name: Blackburn, D. C.
name: Bauer, A. M.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Scincidae
Trachylepis
Trachylepis acutilabris

description: WEDGED-SNOUTED SKINK – Fig. 14
Trachylepis acutilabris (Peters, 1862)
MATERIAL.— INP, 3.4 km south-west (by air) of Espinheira, vicinities of “Lion Cave”, 30 November 2013, 16º48ʹ54.4ʺS, 12º20ʹ13.7ʺE, 450 m (CAS 254751); INP, car wreck 20 km south-south-west (by air) of Espinheira, 30 November 2013, 16º55ʹ53.81ʺS, 12º14ʹ45.42ʺE, 616 m (CAS 254789); Namibe-Lubango road, road marker 59, 1.8 km (by road) of Caraculo, north side of the road, 6 December 2013, 15º0ʹ59.3ʺS, 12º38ʹ33.6ʺE, 488 m (CAS 254899), 15º0ʹ58.8ʺS, 12º38ʹ33.8ʺE, 491 m (CAS 254907); Pico Azevedo, 7 December 2013, 15º32ʹ2.4ʺS, 12º29ʹ31.1ʺE, 359 m (CAS 254927–254931).
COMMENTS.— This species is similar to lacertid lizards in morphology and diet (Castanzo and Bauer 1992). Its elongate toes and countersunk lower jaw are consistent with its burrowing habits. It typically occupies burrows at the base of vegetation in sandy soils from Namibia through western Angola to the Democratic Republic of Congo and Cabinda (Branch 1998).
description: Published as part of Ceríaco, L. M. P., De Sá, S., Bandeira, S., Valério, H., Stanley, E. L., Kuhn, A. L., Marques, M. P., Vindum, J. V., Blackburn, D. C. & Bauer, A. M., 2016, Herpetological Survey of Iona National Park and Namibe Regional Natural Park, with a Synoptic List of the Amphibians and Reptiles of Namibe Province, Southwestern Angola, pp. 15-61 in Proceedings of the California Academy of Sciences 63 (2) on page 34, DOI: 10.5281/zenodo.11066801
Trachylepis sulcata Capangombe (Bocage 1895
Creators: name: Ceríaco, L. M. P.
name: De Sá, S.
name: Bandeira, S.
name: Valério, H.
name: Stanley, E. L.
name: Kuhn, A. L.
name: Marques, M. P.
name: Vindum, J. V.
name: Blackburn, D. C.
name: Bauer, A. M.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Scincidae
Trachylepis
Trachylepis sulcata

description: WESTERN ROCK SKINK
Trachylepis sulcata (Peters, 1867)
MATERIAL.— INP, Rio Curoca in Pediva Hot Springs area, 3 December 2013, 16º17´0.93ʺS, 12º33ʹ39.81ʺE, 247 m (CAS 254853); Leba Pass, 5 December 2013, 15º4ʹ12.1ʺS, 13º14ʹ36.2ʺE, 1680 m (CAS 254875); Namibe-Lubango road, 2 km east (by road) of Mangueiras, south side of the road, 5 December 2013, 15º2ʹ40.7ʺS, 13º9ʹ31ʺE, 625 m (CAS 254886), 15º2ʹ40.8ʺS, 13º9ʹ32.6ʺE, 664 m (CAS 254888).
COMMENTS.— Trachylepis sulcata is a rupicolous skink ranging from the Western Cape Province of South Africa north to southern Angola. Trachylepis sulcata ansorgii (Boulenger 1907b) was described from southern Angola to accommodate specimens with bright throat and infralabial coloration. Laurent (1964a) and Mertens (1971) considered it valid and the latter identified some Namibian specimens as intergrades between T. s. ansorgii and T. s. sulcata, whereas Haacke (1972) considered specimens on the Namibian side of the Kunene river to be referable to T. s. ansorgii. Some specimens from west of the Great Escarpment in northwestern Namibia exhibit the diagnostic coloration of ansorgii, but the two subspecies seem to have no fixed differences in scalation (Bauer et al. 1993). Although Portik et al. (2011) did not include typical T. s. ansorgii in their molecular sampling, preliminary integration of samples from our collection into their data set reveals no significant difference from putative T. s. ansorgii from Namibe and the nominotypical form. We therefore treat T. sulcata as a monotypic species.
description: Published as part of Ceríaco, L. M. P., De Sá, S., Bandeira, S., Valério, H., Stanley, E. L., Kuhn, A. L., Marques, M. P., Vindum, J. V., Blackburn, D. C. & Bauer, A. M., 2016, Herpetological Survey of Iona National Park and Namibe Regional Natural Park, with a Synoptic List of the Amphibians and Reptiles of Namibe Province, Southwestern Angola, pp. 15-61 in Proceedings of the California Academy of Sciences 63 (2) on page 34, DOI: 10.5281/zenodo.11066801
Meroles anchietae
Creators: name: Ceríaco, L. M. P.
name: De Sá, S.
name: Bandeira, S.
name: Valério, H.
name: Stanley, E. L.
name: Kuhn, A. L.
name: Marques, M. P.
name: Vindum, J. V.
name: Blackburn, D. C.
name: Bauer, A. M.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Lacertidae
Meroles
Meroles anchietae

description: ANCHIETA’S SHOVEL-SNOUT LIZARD
Meroles anchietae (Bocage, 1867)
MATERIAL.— Praia do Navio coastal dunes, ca 124 km SSW of Namibe, 8 December 2013, 16º16ʹ29.1ʺS, 11º49ʹ05.0ʺE, 8 m (CAS 254773).
COMMENTS.— Bocage (1867) described this species from “Mossamedes” (Bocage 1867). Surprisingly, this remains the only published locality for this species in Angola (Bocage, 1867, 1895), despite it being common and widely distributed in barchan dunes from the Klinghardt Mountains north through the Namib of western Namibia. In the Newton collections in Porto, there are several uncatalogued specimens corresponding to this species from “Mossamedes” and the Ditsong National Natural History Museum has material collected by Wulf Haacke from Porto Alexandre and Foz de Cunene.
description: Published as part of Ceríaco, L. M. P., De Sá, S., Bandeira, S., Valério, H., Stanley, E. L., Kuhn, A. L., Marques, M. P., Vindum, J. V., Blackburn, D. C. & Bauer, A. M., 2016, Herpetological Survey of Iona National Park and Namibe Regional Natural Park, with a Synoptic List of the Amphibians and Reptiles of Namibe Province, Southwestern Angola, pp. 15-61 in Proceedings of the California Academy of Sciences 63 (2) on page 36, DOI: 10.5281/zenodo.11066801
A Weight of Evidence approach to classify nanomaterials according to the EU Classification, Labelling and Packaging regulation criteria
Creators: name: Basei, Gianpietro
name: Zabeo, Alex
name: Rasmussen, Kirsten
name: Tsiliki, Georgia
name: Hristozov, Danail
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: In the context of the EU Horizon 2020 GRACIOUS project, we proposed a quantitative Weight of Evidence (WoE) approach for hazard classification of nanomaterials (NMs). This approach is based on the requirements of the European Regulation on Classification, Labelling and Packaging of Substances and Mixtures (the CLP Regulation), which implements the United Nations' Globally Harmonized System of Classification and Labelling of Chemicals (UN GHS) in the European Union. The goal of this WoE methodology is to facilitate classification of NMs according to CLP criteria, following the decision trees defined in ECHA's CLP regulatory guidance. The proposed methodology involves the following stages: (1) collection of data for different NMs related to the endpoint of interest: each study related to each NM is referred as a Line of Evidence (LoE); (2) computation of weighted scores for each LoE: each LoE is weighted by a score calculated based on agreed data quality and completeness criteria defined in the GRACIOUS project; (3) comparison and integration of the weighed LoEs for each NM: A Monte Carlo resampling approach is adopted to quantitatively and probabilistically integrate the weighted evidence; and (4) assignment of each NM to a hazard class: according to the results, each NM is assigned to one of the classes defined by the CLP regulation. Furthermore, to facilitate the integration and the classification of the weighted LoEs, an R tool was developed. Finally, the approach was tested against an endpoint relevant to CLP (Aquatic Toxicity) using data retrieved from the eNanoMapper database, results obtained were consistent to results in ECHA registration dossiers and in recent literature
description: Preprint version
Entanglement detection via condition of quantum correlation
Creators: name: Li, Che-Ming
name: Hsu, Li-Yi
name: Chen, Yueh-Nan
name: Chuu, Der-San
name: Brandes, Tobias
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a novel necessary condition of quantum correlation. It is utilized to construct $d$-level bipartite Bell-type inequality which is strongly resistant to noise and requires only analyses of $O(d)$ measurement outcomes compared to the previous result $O(d^{2})$. Remarkably, a connection between the arbitrary high-dimensional bipartite Bell-type inequality and entanglement witnesses is found. Through the necessary condition of quantum correlation, we propose that the witness operators to detect truly multipartite entanglement for a generalized Greenberger-Horne-Zeilinger (GHZ) state with two local measurement settings and a four-qubit singlet state with three settings. Moreover, we also propose the first robust entanglement witness to detect four-level tripartite GHZ state with only two local measurement settings.
A tangential force model for interactions between bonded colloidal particles
Creators: name: Becker, Volker
name: Briesen, Heiko
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Recently, Pantina and Furst (Phys. Rev. Lett., 94(13), 138301, 2005) experimentally demon- strated that there are tangential forces between bonded colloidal particles and that bonds between colloidal particles are capable of supporting bending moments. We introduce a model to be used in computer simulations that describes these tangential interactions. We show how the model parame- ters can be determined from experimental data. Simulations using the model are able to reproduce the measurement of Pantina and Furst. Application of the model to an aggregate with fractal structure leads to more realistic behavior than using classical approaches only.
description: 7 pages, 8 figures
Optimal light storage in atomic vapor
Creators: name: Phillips, Nathaniel B.
name: Gorshkov, Alexey V.
name: Novikova, Irina
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study procedures for the optimization of efficiency of light storage and retrieval based on the dynamic form of electromagnetically induced transparency (EIT) in warm Rb vapor. We present a detailed analysis of two recently demonstrated optimization protocols: a time-reversal-based iteration procedure, which finds the optimal input signal pulse shape for any given control field, and a procedure based on the calculation of an optimal control field for any given signal pulse shape. We verify that the two procedures are consistent with each other, and that they both independently achieve the maximum memory efficiency for any given optical depth. We observe good agreement with theoretical predictions for moderate optical depths (<25), while at higher optical depths the experimental efficiency falls below the theoretically predicted values. We identify possible effects responsible for this reduction in memory efficiency.
description: 10 pages, 9 figures
Final Moments I: Precursor Emission, Envelope Inflation, and Enhanced Mass loss Preceding the Luminous Type II Supernova 2020tlf
Creators: name: Jacobson-Galán, Wynn
name: Dessart, Luc
name: Jones, David
name: Margutti, Raffaella
name: Coppejans, Deanne
name: Dimitriadis, Georgios
name: Foley, Ryan J.
name: Kilpatrick, Charles D.
name: Matthews, David J.
name: Rest, Sofia
name: Terreran, Giacomo
name: Aleo, Patrick D.
name: Auchettl, Katie
name: Blanchard, Peter K.
name: Coulter, David A.
name: Davis, Kyle W.
name: de Boer, Thomas
name: DeMarchi, Lindsay
name: Drout, Maria R.
name: Earl, Nicholas
name: Gagliano, Alexander
name: Gall, Christa
name: Hjorth, Jens
name: Huber, Mark E.
name: Ibik, Adaeze L.
name: Milisavljevic, Danny
name: Pan, Yen-Chen
name: Rest, Armin
name: Ridden-Harper, Ryan
name: Rojas-Bravo, César
name: Siebert, Matthew R.
name: Smith, Ken W.
name: Taggart, Kirsty
name: Tinyanont, Samaporn
name: Wang, Qinan
name: Zenati, Yossef
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present panchromatic observations and modeling of supernova (SN) 2020tlf, the first normal type II-P/L SN with confirmed precursor emission, as detected by the Young Supernova Experiment transient survey with the Pan-STARRS1 telescope. Pre-explosion emission was detected in $riz-$bands at 130 days prior to SN 2020tlf and persisted at relatively constant flux until first light. Soon after discovery, "flash" spectroscopy of SN 2020tlf revealed prominent narrow symmetric emission lines ($v_w < 300$ km s$^{-1}$) that resulted from the photo-ionization of unshocked circumstellar material (CSM) shedded in progenitor mass loss episodes in the final weeks to months before explosion. Surprisingly, this novel display of pre-SN emission and associated mass loss occurred in a RSG progenitor with ZAMS mass of only 10-12 M$_{\odot}$, as inferred from nebular spectra. Modeling of the light curve and multi-epoch spectra with the non-LTE radiative transfer code CMFGEN and radiation-hydrodynamical (RHD) code HERACLES suggests a dense CSM limited to $r \approx 10^{15}$ cm, and mass loss rate of $10^{-2}$ M$_{\odot}$ yr$^{-1}$. The subsequent luminous light-curve plateau and persistent blue excess indicates an extended progenitor, compatible with a RSG model with $R_{\star} = 1100$ R$_{\odot}$. Inferences from the limits on the shock-powered X-ray and radio luminosity are consistent with these conclusions and suggest a CSM density of $ρ< 2 \times 10^{-16}$ g cm$^{-3}$ for distances of $r \approx 5 \times 10^{15}$ cm, as well as a mass loss rate of $\dot M<1.3 \times 10^{-5}\,\rm{M_{\odot}\,yr^{-1}}$ at larger distances. A promising power source for the observed precursor emission is the ejection of stellar material following energy disposition into the stellar envelope as a result of gravity waves emitted during either neon/oxygen burning or a nuclear flash from silicon combustion.
description: 36 pages, 20 figures. Accepted for publication in ApJ
Non-circular motion evidences in the circumnuclear region of M100 (NGC 4321)
Creators: name: Castillo-Morales, A.
name: Jimenez-Vicente, J.
name: Mediavilla, E.
name: Battaner, E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyse new integral field spectroscopy of the inner region (central 2.5 kpc) of the spiral galaxy NGC 4321 to study the peculiar kinematics of this region. Fourier analysis of the velocity residuals obtained by subtracting an axisymmetric rotation model from the $\rm Hα$ velocity field, indicates that the distortions are {\em global} features generated by an $m=2$ perturbation of the gravitational potential which can be explained by the nuclear bar. This bar has been previously observed in the near-infrared but not in the optical continuum dominated by star formation. We detect the optical counterpart of this bar in the 2D distribution of the old stellar population (inferred from the equivalent width map of the stellar absorption lines). We apply the Tremaine--Weinberg method to the stellar velocity field to calculate the pattern speed of the inner bar, obtaining a value of $Ω_b$=160$\pm70\rm km s^{-1} kpc^{-1} $. This value is considerably la rger than the one obtained when a simple bar model is considered. However the uncertainties in the pattern speed determination prevent us to give support to alternative scenarios.
description: 11 pages, 11 figures, accepted for publication in MNRAS
Use of uncomposted woodchip as a soil improver in arable and horticultural soils
Creators: name: Westaway, Sally
name: Anais Rousseau And Jo Smith
Publisher: name: Zenodo
Year: 2019
Subjects: Ramial chipped wood; agroforestry; hedges

description: Poster presented at the 4th World Congress on Agroforestry in Montpellier on 20-22 May 2019. This paper reports on the first-year results from trials comparing the addition of uncomposted and composted woodchip sourced from on-farm woody resources as a soil improver. The trials aim to increase the sustainability of farm systems by linking hedgerow management with soil improvement whilst providing an economic incentive for management of on-farm woody resources.
Contrasting Behavior of the 5/2 and 7/3 Fractional Quantum Hall Effect in a Tilted Field
Creators: name: Dean, C. R.
name: Piot, B. A.
name: Hayden, P.
name: Sarma, S. Das
name: Gervais, G.
name: Pfeiffer, L. N.
name: West, K. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using a tilted field geometry, the effect of an in-plane magnetic field on the even denominator nu = 5/2 fractional quantum Hall state is studied. The energy gap of the nu = 5/2 state is found to collapse linearly with the in-plane magnetic field above ~0.5 T. In contrast, a strong enhancement of the gap is observed for the nu = 7/3 state. The radically distinct tilted-field behaviour between the two states is discussed in terms of Zeeman and magneto-orbital coupling within the context of the proposed Moore-Read pfaffian wavefunction for the 5/2 fractional quantum Hall effect.
Origin of matter in the universe
Creators: name: Gu, Pei-Hong
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We extend the standard model with two iso-singlet color triplet scalars, one singlet real scalar and one singlet fermion. The new fields are odd under an unbroken Z_2 discrete symmetry while the standard model particles are even. The decays of the singlet real scalar into three standard model quarks (antiquarks) with three singlet antifermions (fermions), which explicitly violate the baryon number, will become effective after the electroweak phase transition and then produce the observed baryon asymmetry in the universe through the loop diagram involving the exchange of the W gauge boson. The singlet fermion can serve as the candidate for cold dark matter. In our model, all new particles with masses below the TeV scale can be detected by the forthcoming collider experiments or the next generation experiments for neutron-antineutron oscillations.
description: 6 pages, 7 figures. Comment on proton decay improved. Accepted by PLB
Meroles reticulatus
Creators: name: Ceríaco, L. M. P.
name: De Sá, S.
name: Bandeira, S.
name: Valério, H.
name: Stanley, E. L.
name: Kuhn, A. L.
name: Marques, M. P.
name: Vindum, J. V.
name: Blackburn, D. C.
name: Bauer, A. M.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Squamata
Lacertidae
Meroles
Meroles reticulatus

description: RETICULATE SAND LIZARD – Fig. 15.
Meroles reticulatus (Bocage, 1867)
MATERIAL.— Praia do Navio coastal dunes, ca 124 km SSW of Namibe, 8 December 2013, 16º16ʹ39.3ʺS, 11º49ʹ20.5ʺE, 8 m (CAS 254776).
COMMENTS.— Bocage (1867) described this species from “Mossamedes.” Bocage (1895) subsequently clarified that the types had come from the littoral zone at Rio Coroca [= Rio Curoca, southern Namibe Province, Angola]. The range of this species extends towards Namibia to the area of Conception Bay on the central coast. Although it is well documented within its Namibian range, this specimen is only the third published locality for Angola. The species is, however, well represented from numerous localities in Namibe by specimens in the Ditsong National Museum of Natural History.
description: Published as part of Ceríaco, L. M. P., De Sá, S., Bandeira, S., Valério, H., Stanley, E. L., Kuhn, A. L., Marques, M. P., Vindum, J. V., Blackburn, D. C. & Bauer, A. M., 2016, Herpetological Survey of Iona National Park and Namibe Regional Natural Park, with a Synoptic List of the Amphibians and Reptiles of Namibe Province, Southwestern Angola, pp. 15-61 in Proceedings of the California Academy of Sciences 63 (2) on page 36, DOI: 10.5281/zenodo.11066801
title: Oxidising agents in sub-arc mantle melts link slab devolatilisation and arc magmas
Creators: name: Bénard, Antoine
name: Klimm, Kevin
name: Woodland, Alan B.
name: Arculus, Richard J.
name: Wilke, Max
name: Botcharnikov, Roman E.
name: Shimizu, Nobumichi
name: Nebel, Oliver
name: Rivard, Camille
name: Ionov, Dmitri A.
Publisher: name: Universität Potsdam
Year: 2019

description: Subduction zone magmas are more oxidised on eruption than those at mid-ocean ridges. This is attributed either to oxidising components, derived from subducted lithosphere (slab) and added to the mantle wedge, or to oxidation processes occurring during magma ascent via differentiation. Here we provide direct evidence for contributions of oxidising slab agents to melts trapped in the sub-arc mantle. Measurements of sulfur (S) valence state in sub-arc mantle peridotites identify sulfate, both as crystalline anhydrite (CaSO4) and dissolved SO42− in spinel-hosted glass (formerly melt) inclusions. Copper-rich sulfide precipitates in the inclusions and increased Fe3+/∑Fe in spinel record a S6+–Fe2+ redox coupling during melt percolation through the sub-arc mantle. Sulfate-rich glass inclusions exhibit high U/Th, Pb/Ce, Sr/Nd and δ34S (+ 7 to + 11‰), indicating the involvement of dehydration products of serpentinised slab rocks in their parental melt sources. These observations provide a link between liberated slab components and oxidised arc magmas.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 717
title: Morphological encoding beyond slots and fillers
title: an ERP study of comparative formation in English
titleType: Subtitle
Creators: name: Clahsen, Harald
name: Paulmann, Silke
name: Budd, Mary-Jane
name: Barry, Christopher
Publisher: name: Universität Potsdam
Year: 2019

description: One important organizational property of morphology is competition. Different means of expression are in conflict with each other for encoding the same grammatical function. In the current study, we examined the nature of this control mechanism by testing the formation of comparative adjectives in English during language production. Event-related brain potentials (ERPs) were recorded during cued silent production, the first study of this kind for comparative adjective formation. We specifically examined the ERP correlates of producing synthetic relative to analytic comparatives, e.g. angriervs. more angry. A frontal, bilaterally distributed, enhanced negative-going waveform for analytic comparatives (vis-a-vis synthetic ones) emerged approximately 300ms after the (silent) production cue. We argue that this ERP effect reflects a control mechanism that constrains grammatically-based computational processes (viz. more comparative formation). We also address the possibility that this particular ERP effect may belong to a family of previously observed negativities reflecting cognitive control monitoring, rather than morphological encoding processes per se.
description: Postprints der Universität Potsdam : Humanwissenschaftliche Reihe, 550
Deep learning reconstruction of three-dimensional galaxy distributions with intensity mapping observations
Creators: name: Moriwaki, Kana
name: Yoshida, Naoki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Line intensity mapping is emerging as a novel method that can measure the collective intensity fluctuations of atomic/molecular line emission from distant galaxies. Several observational programs with various wavelengths are ongoing and planned, but there remains a critical problem of line confusion; emission lines originating from galaxies at different redshifts are confused at the same observed wavelength. We devise a generative adversarial network that extracts designated emission line signals from noisy three-dimensional data. Our novel network architecture allows two input data, in which the same underlying large-scale structure is traced by two emission lines of H$\rm α$ and [OIII], so that the network learns the relative contributions at each wavelength and is trained to decompose the respective signals. After being trained with a large number of realistic mock catalogs, the network is able to reconstruct the three-dimensional distribution of emission-line galaxies at $z = 1.3-2.4$. Bright galaxies are identified with a precision of 84%, and the cross-correlation coefficients between the true and reconstructed intensity maps are as high as 0.8. Our deep-learning method can be readily applied to data from planned space-borne and ground-based experiments.
description: 7 pages, 5 figures, ApJL in press
title: Late Holocene ice-wedge polygon dynamics in  northeastern Siberian coastal lowlands
Creators: name: Schirrmeister, Lutz
name: Bobrov, Anatoly
name: Raschke, Elena
name: Herzschuh, Ulrike
name: Strauss, Jens
name: Pestryakova, Luidmila A.
name: Wetterich, Sebastian
Publisher: name: Universität Potsdam
Year: 2019

description: Ice-wedge polygons are common features of northeastern Siberian lowland periglacial tundra landscapes. To deduce the formation and alternation of ice-wedge polygons in the Kolyma Delta and in the Indigirka Lowland, we studied shallow cores, up to 1.3 m deep, from polygon center and rim locations. The formation of well-developed low-center polygons with elevated rims and wet centers is shown by the beginning of peat accumulation, increased organic matter contents, and changes in vegetation cover from Poaceae-, Alnus-, and Betula-dominated pollen spectra to dominating Cyperaceae and Botryoccocus presence, and Carex and Drepanocladus revolvens macro-fossils. Tecamoebae data support such a change from wetland to open-water conditions in polygon centers by changes from dominating eurybiontic and sphagnobiontic to hydrobiontic species assemblages. The peat accumulation indicates low-center polygon formation and started between 2380 +/- 30 and 1676 +/- 32 years before present (BP) in the Kolyma Delta. We recorded an opposite change from open-water to wetland conditions because of rim degradation and consecutive high-center polygon formation in the Indigirka Lowland between 2144 +/- 33 and 1632 +/- 32 years BP. The late Holocene records of polygon landscape development reveal changes in local hydrology and soil moisture.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 719
title: How concave are river channels?
Creators: name: Mudd, Simon M.
name: Clubb, Fiona J.
name: Gailleton, Boris
name: Hurst, Martin D.
Publisher: name: Universität Potsdam
Year: 2019

description: For over a century, geomorphologists have attempted to unravel information about landscape evolution, and processes that drive it, using river profiles. Many studies have combined new topographic datasets with theoretical models of channel incision to infer erosion rates, identify rock types with different resistance to erosion, and detect potential regions of tectonic activity. The most common metric used to analyse river profile geometry is channel steepness, or k(s). However, the calculation of channel steepness requires the normalisation of channel gradient by drainage area. This normalisation requires a power law exponent that is referred to as the channel concavity index. Despite the concavity index being crucial in determining channel steepness, it is challenging to constrain. In this contribution, we compare both slope-area methods for calculating the concavity index and methods based on integrating drainage area along the length of the channel, using so-called "chi" (chi) analysis. We present a new chi-based method which directly compares chi values of tributary nodes to those on the main stem; this method allows us to constrain the concavity index in transient landscapes without assuming a linear relationship between chi and elevation. Patterns of the concavity index have been linked to the ratio of the area and slope exponents of the stream power incision model (m/n); we therefore construct simple numerical models obeying detachment-limited stream power and test the different methods against simulations with imposed m and n. We find that chi-based methods are better than slope-area methods at reproducing imposed m/n ratios when our numerical landscapes are subject to either transient uplift or spatially varying uplift and fluvial erodibility. We also test our methods on several real landscapes, including sites with both lithological and structural heterogeneity, to provide examples of the methods' performance and limitations. These methods are made available in a new software package so that other workers can explore how the concavity index varies across diverse landscapes, with the aim to improve our understanding of the physics behind bedrock channel incision.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 718
Constraints on light bending and reflection from the hard X-ray background
Creators: name: Gandhi, P.
name: Fabian, A. C.
name: Suebsuwong, T.
name: Malzac, J.
name: Miniutti, G.
name: Wilman, R. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Light bending due to strong gravity has recently been invoked to explain variability and flux correlations between different bands in some accreting black holes. A characteristic feature of light bending is reflection-dominated spectra, especially if photon sources lie in the deepest parts of the gravitational potential within a few gravitational radii of the event horizon. We use the spectrum of the hard X-ray background in order to constrain the prevalence of such reflection-dominated sources. We first emphasize the need for reflection and explore the broad-band properties of realistic spectra that incorporate light bending. We then use these spectra, in conjunction with the observed 2-10 keV AGN distribution, evolutionary and obscuration functions in order to predict the hard X-ray background spectrum over 3-100 keV, and provide limits on the fraction of reflection-dominated objects, dependent on the height of the photon sources. Our results allow for a cosmologically-significant fraction of sources that incorporate strong light bending. The luminosity function based on intrinsic flare luminosities is derived and implications discussed. We discuss prospects for future hard X-ray missions such as NeXT and Simbol-X that can image such sources as well as confirm the precise spectral shape of the background near its peak, important for constraining the universal relevance of light bending.
description: 15 pages, 13 figures. MNRAS accepted
Higher-Order Kinematical Effects in Deeply Virtual Compton Scattering
Creators: name: Guo, Yuxun
name: Ji, Xiangdong
name: Shiells, Kyle
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the deeply virtual Compton scattering cross-section in twist-two generalized parton distribution (GPD) approximation, and show that different choices of light-cone vectors and gauges for the final photon polarization will lead to different higher-order kinematical corrections to the cross-section formula. The choice of light-cone vectors affects kinematic corrections at the twist-three level, accounting for the differences between the cross-section formulas in the literature. On the other hand, kinematical corrections from higher-twist GPDs should eliminate the light-cone dependence at twist three. Those light-cone dependencies are studied systematically at JLab 12 GeV and future EIC kinematics. They serve as the intrinsic systematic uncertainties in extracting the Compton form factors through the cross-section formula. More importantly, they are also necessary for understanding cross-section measurements with higher-twist precision and to reconstruct higher-order Compton form factors.
description: 49 pages, 14 figures
Dynamical Functions of a 1D Correlated Quantum Liquid
Creators: name: Carmelo, J. M. P.
name: Bozi, D.
name: Penc, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We extend to initial ground states with zero spin density m = 0 the expressions provided by the pseudofermion dynamical theory (PDT) for the finite-energy one- and two-electron spectral-weight distributions of a one-dimensional (1D) correlated metal with on-site particle-particle repulsion. The spectral-function expressions derived in this paper were used in recent successful and detailed theoretical studies of the finite-energy singular features in photoemission of the organic compound tetrathiafulvalene-tetracyanoquinodimethane (TTF-TCNQ) metallic phase. Our studies take into account spectral contributions from types of microscopic processes that do not occur for finite values of the spin density. Expressions for the spectral functions in the vicinity of the singular border lines which also appear in the TTF- TCNQ spectral-weight distribution are derived. In addition, the PDT expressions are generalized for electronic densities in the vicinity of half filling. Further details on the processes involved in the applications to TTF-TCNQ are reported. Our results are useful for the further understanding of the unusual spectral properties observed in low-dimensional organic metals and also provide expressions for the one- and two-atom spectral functions of a correlated quantum system of ultracold fermionic atoms in a 1D optical lattice with on-site two-atom repulsion.
Macroscopic effects in attosecond pulse generation
Creators: name: Ruchon, T.
name: Hauri, C. P.
name: Varju, K.
name: Gustafsson, E.
name: Lopez-Martens, R.
name: L'Huillier, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We examine how the generation and propagation of high-order harmonics in a partly ionized gas medium affect their strength and synchronization. The temporal properties of the resulting attosecond pulses generated in long gas targets can be significantly influenced by macroscopic effects, in particular by the intensity in the medium and the degree of ionization. Under some conditions, the use of gas targets longer than the absorption length can lead to the generation of self-compressed attosecond pulses. We show this effect experimentally, using long argon-filled gas cells as generating medium.
description: 5 pages 4 figures