cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Next Generation Virgo Cluster Survey. VIII. The Spatial Distribution of Globular Clusters in the Virgo Cluster
Creators: name: Durrell, Patrick R.
name: Côté, Patrick
name: Peng, Eric W.
name: Blakeslee, John P.
name: Ferrarese, Laura
name: Mihos, J. Christopher
name: Puzia, Thomas H.
name: Lançon, Ariane
name: Liu, Chengze
name: Zhang, Hongxin
name: Cuillandre, Jean-Charles
name: McConnachie, Alan
name: Jordan, Andrés
name: Accetta, Katharine
name: Boissier, Samual
name: Boselli, Alessandro
name: Courteau, Stéphane
name: Duc, Pierre-Alain
name: Emsellem, Eric
name: Gwyn, Stephen
name: Mei, Simona
name: Taylor, James E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report on a large-scale study of the distribution of globular clusters (GCs) throughout the Virgo cluster, based on photometry from the Next Generation Virgo Cluster Survey, a large imaging survey covering Virgo's primary subclusters to their virial radii. Using the g', (g'-i') color-magnitude diagram of unresolved and marginally-resolved sources, we constructed 2-D maps of the GC distribution. We present the clearest evidence to date showing the difference in concentration between red and blue GCs over the extent of the cluster, where the red (metal-rich) GCs are largely located around the massive early-type galaxies, whilst the blue (metal-poor) GCs have a more extended spatial distribution, with significant populations present beyond 83' (215 kpc) along the major axes of M49 and M87. The GC distribution around M87 and M49 shows remarkable agreement with the shape, ellipticity and boxiness of the diffuse light surrounding both galaxies. We find evidence for spatial enhancements of GCs surrounding M87 that may be indicative of recent interactions or an ongoing merger history. We compare the GC map to the locations of Virgo galaxies and the intracluster X-ray gas, and find good agreement between these baryonic structures. The Virgo cluster contains a total population of 67300$\pm$14400 GCs, of which 35% are located in M87 and M49 alone. We compute a cluster-wide specific frequency S_N,CL=$2.8\pm0.7$, including Virgo's diffuse light. The GC-to-baryonic mass fraction is e_b=$5.7\pm1.1\times10^{-4} $and the GC-to-total cluster mass formation efficiency is e_t=$2.9\pm0.5\times10^{-5}$, values slightly lower than, but consistent with, those derived for individual galactic halos. Our results show that the production of the complex structures in the unrelaxed Virgo cluster core (including the diffuse intracluster light) is an ongoing process.(abridged)
description: 23 pages, 17 figures. Accepted for publication in the Astrophysical Journal. Figure 1 has reduced resolution. Revised version with updated references, corrected typos -- no changes to results
title: The first monumental cemeteries of western Europe : the „Passy type“ necropolis in the Paris basin around 4500 BC
Creators: name: Chambon, Philippe
name: Thomas, Aline
Publisher: name: Journal of Neolithic Archaeology
Year: 2010

description: In the Seine-Yonne basin at around 4500 B.C. numerous cemeteries appeared, including giant “enclosures” which as a funerary manifestation would have no later equivalent in Europe. These constructions, whether tumuli, palisade enclosures, or mixed systems, sometimes exceed 300 m in length but contain very few burials. Beyond the classic interpretation, which sees high investment in a few individuals as reflecting a hierarchical society, structural analysis of these cemeteries shows the repetition of an elementary module, associated with consistent attributes, evoking hunting and more broadly, the wild. An exercise of association and exclusion brings into play the morphology and arrangements of the monuments, the gender of the inhumed individuals and their attributes. In the male monuments, a central figure is thus distinguished, sometimes with original physical characteristics and accompanied by an enigmatic insignia: a pointed bone instrument with a wide base, trivially called an “Eiffel Tower”. This figure is surrounded by other individuals interpreted as hunters on the basis of the accompanying objects. Other individuals probably served as no more than passive figurants, rather like foils. In any case, the monumental cemeteries of the 5th millennium correspond to the earliest human groups for which we can identify diverse and repetitive statuses.
description: Journal of Neolithic Archaeology, 2010: Megaliths and Identities
The Lie group of bisections of a Lie groupoid
Creators: name: Schmeding, Alexander
name: Wockel, Christoph
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 22E65 (primary), 58H05, 46T10, 58D05 (secondary)

description: In this article we endow the group of bisections of a Lie groupoid with compact base with a natural locally convex Lie group structure. Moreover, we develop thoroughly the connection to the algebra of sections of the associated Lie algebroid and show for a large class of Lie groupoids that their groups of bisections are regular in the sense of Milnor.
description: 31 pages, LaTex, v2: corrected several typos and added some remarks, the main results remain unchanged
title: Ritual Cooperation and Ritual Collectivity: The Social Structure of the Middle and Younger Funnel Beaker North Group (3500 – 2800 BC)
Creators: name: Müller, Johannes
Publisher: name: Journal of Neolithic Archaeology
Year: 2010

description: A model about the social development of a TRB society – the change from a society with individual and group diversity around 3400 BC to a more stratified social formation around 3000 BC – is shown to be the outcome of both burial evidence on the North Friesian Islands as well as information on enclosures, decoration diversity and economic variables from further regions of the southern TRB North group. While the former is linked to ideological concepts of “ritual cooperation”, the later ideology might be labelled “ritual collectiveness”. Expressions of “ritual cooperation” are causewayed enclosures and different burial customs, the means of “ritual collectiveness” passage graves.
description: Journal of Neolithic Archaeology, 2010: Megaliths and Identities
title: Absolutchronologie und die Entstehung der Schnurkeramik
Creators: name: Martin Furholt
Publisher: name: Journal of Neolithic Archaeology
Year: 2012

description: The analysis of the available radiocarbon and dendrochronological dates of the Central European Corded Ware/Single Grave Culture gives new evidence for the evaluation of the formation processes of the Central European Corded Ware and the problem of the so-called „A-Horizon“. Ceramic forms in single graves develop earlier in Poland than in western and southern Central Europe. It is possible to show the development of a non-ceramic Corded Ware – or the development of a „corded ware-fashioned“ burial rite – in the western parts that takes place contemporaneous with the early CWC in Poland. This points towards a spread of Corded Ware cultural traits through a wide-spanning communication network rather than through migration. The dates also point towards the existence of an „A-Horizon“ in the 28th century BC, though it is shown that this horizon is to be understood as a number of connencting forms within different regional contexts.
description: Journal of Neolithic Archaeology, 5 (2003)
BANYAN. IV. Fundamental parameters of low-mass star candidates in nearby young stellar kinematic groups - Isochronal Age determination using Magnetic evolutionary models
Creators: name: Malo, Lison
name: Doyon, René
name: Feiden, Gregory A.
name: Albert, Loïc
name: Lafrenière, David
name: Artigau, Étienne
name: Gagné, Jonathan
name: Riedel, Adric
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Based on high resolution optical spectra obtained with ESPaDOnS at CFHT, we determine fundamental parameters (\Teff, R, \Lbol, \logg\ and metallicity) for 59 candidate members of nearby young kinematic groups. The candidates were identified through the BANYAN Bayesian inference method of \citet{2013malo}, which takes into account the position, proper motion, magnitude, color, radial velocity and parallax (when available) to establish a membership probability. The derived parameters are compared to Dartmouth Magnetic evolutionary models and to field stars with the goal to constrain the age of our candidates. We find that, in general, low-mass stars in our sample are more luminous and have inflated radii compared to older stars, a trend expected for pre-main sequence stars. The Dartmouth Magnetic evolutionary models show a good fit to observations of field K and M stars assuming a magnetic field strength of a few kG, as typically observed for cool stars. Using the low-mass members of $β$Pictoris moving group, we have re-examined the age inconsistency problem between Lithium Depletion age and isochronal age (Hertzspring-Russell diagram). We find that the inclusion of the magnetic field in evolutionary models increase the isochronal age estimates for the K5V-M5V stars. Using these models and field strengths, we derive an average isochronal age between 15 and 28 Myr and we confirm a clear Lithium Depletion Boundary from which an age of 26$\pm$3~Myr is derived, consistent with previous age estimates based on this method.
description: Accepted for publication in ApJ
Climate change mitigation in the Australian agricultural sector: How can public policy drive adoption of greenhouse gas abatement measures by farmers?
Creators: name: Cullen, Ishbel
Publisher: name: The Australian National University
Year: 2015

description: Climate change mitigation in the agricultural sector will be a key component of any pathway to deep emissions reduction in Australia. The recent Beyond Zero Emissions Land Use Plan demonstrates how dramatic emission reductions in the agricultural sector could occur by presenting six areas for greenhouse gas (GHG) abatement. This thesis investigates how public policy could begin to operationalise this vision. It addresses three central aims: 1) to identify barriers to adopting further GHG abatement measures for the six case study farmers from the Beyond Zero Emissions Land Use Plan 2) to assess the strengths and weaknesses of policy efforts to overcome these barriers to-date and 3) to provide recommendations for key aspects of policy design to help overcome these barriers in the future. These aims were addressed through a literature review, a policy review and semi-structured interviews with the six case study farmers and nine policy officials from Commonwealth and State government departments, as well as NRM Regions Australia and the National Farmers Federation. Seven key barriers to farmers adopting GHG abatement measures were identified. These were: 1. Financial costs of the change; 2. Complexity or novelty of the change; 3. Lack of capacity to change due to other pressures; 4. Inadequate level of information; 5. Sociocultural context not conducive to change; 6. Inconsistent government policy (policy goals and delivery); and 7. Complexity of government policy. While recent decades have seen important developments in natural resource management policy, and more recently the introduction of the Carbon Farming Initiative and Emissions Reduction Fund, policy efforts to-date do not adequately address these barriers and often act to reinforce them. To overcome the barriers to behavioural change amongst farmers, and achieve the scale of emission reduction proposed in the Beyond Zero Emissions Land Use Plan, policy efforts with increased ambition and resolve are required. This thesis provides recommendations to this effect, considering key aspects of policy design including policy framing, policy instruments and policy delivery, as well as policy integration.
title: Anmerkungen zu Klaus Albrecht - "Die Stele von Wellen: Mondkalender - Mondsymbolik?"
Creators: name: Jürgen Hamel
Publisher: name: Journal of Neolithic Archaeology
Year: 2012

description: In einem Online-Artikel hat Klaus Albrecht die sehr regelmäßige Ornamentik der Stele von Wellen (Schwalm-Eder-Kreis, Hessen) als Reflexion neolithischer Mondbeobachtung, Kalender oder Mondsymbolik, gedeutet - eine sicher nicht unumstrittene These. Hier nun eine kritische Stellungnahme von archäoastronomischer Seite.
description: Journal of Neolithic Archaeology, 2–3 (2000–2001)
Towards a daily Gridded Super-Collated SST Product from Low Earth Orbit Satellites (L3S-LEO-D) at NOAA
Creators: name: Jonasson, Olafur
Publisher: name: Zenodo
Year: 2022

description: Presented at the GHRSST XXIII international science team meeting, 27 June-1 July 2022, online and in-person (Barcelona). #GHRSST23 Short abstract
 NOAA provides 0.02° gridded super-collated (L3S) SST products from low earth orbit (LEO) satellites, produced using its Advanced Clear-Sky Processor for Ocean (ACSPO) enterprise SST system. The L3S-LEO family comprises two lines: PM (from afternoon satellites; currently using 2 VIIRS instruments onboard NPP/N20) and AM (from mid-morning satellites; currently using 2-3 AVHRR FRAC instruments onboard Metop-A/B/C). Both L3S-LEO PM/AM products are reported twice daily, one for day and one for night, resulting in four files per day, sampling the diurnal cycle at approximately 1:30am/pm (LEO-PM) and 9:30am/pm (LEO-AM) local times. Complete archives of ACSPO L3S-LEO PM/AM products are available at PO.DAAC and CoastWatch, with new data added in near-real-time.
Topological states of non-Dirac electrons on triangular lattice
Creators: name: Liang, Qi-Feng
name: Yu, Rui
name: Zhou, Jian
name: Hu, Xiao
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate the possibility of topological states for non-Dirac electrons. Specifically it is shown that, because of the $C_{\rm 3}$ crystal symmetry and time reversal symmetry, $p_x$ and $p_y$ orbits accommodated on triangular lattice exhibit a quadratic band touching at $Γ$ point at the Fermi level. When the atomic spin-orbit coupling (SOC) is taken into account, a gap is opened resulting in a quantum spin Hall effect state. As revealed explicitly by a $k\cdot p$ model, the topology is associated with a meron structure in the pseudo spin texture with vorticity two, a mechanism different from honeycomb lattice and the band inversion. One possible realization of this scheme is the 1/3 coverage by Bi atom adapted on the Si[111] surface. First-principle calculations are carried out, and a global gap of $\sim 0.15$eV is observed. With the Si substrate taking part in realizing the nontrivial topology, the present template is expected to make the integration of topological states into existing electronics and photonics technologies promising.
description: 5 pages, 3 figures
When the Wattle Flowers - An investigation into the future of Aboriginal Ranger groups in Australia
Creators: name: Eckford-Williamson, Bhiamie Wahn
Publisher: name: The Australian National University
Year: 2014

description: This thesis asks the question, ‘What is the future of Aboriginal Ranger programs in Australia?’ It explores the links between Caring for Country and Environmental Stewardship by contrasting the experiences of Landcare with the Aboriginal Ranger movement. It draws out key differences between these initiatives whilst learning from common experiences. Through three case studies, this thesis seeks to deepen our understanding of the activities and working realities of Aboriginal Ranger groups. It details in practical terms, what Caring for Country is, to those people who are actively involved in these programs. The results highlight that across these case studies, education, environmental care and cultural practice intersect on Country to create complex yet highly valuable programs. Investigating these three programs clearly shows that Aboriginal Ranger groups are highly effective mechanisms for employment, education and cultural practice. In addition, it demonstrates that Aboriginal Ranger programs are misunderstood, making them vulnerable to changing political and economic circumstances. Exploring future pathways of these Ranger groups through case studies demonstrates that Aboriginal Ranger staff identify moving to independent organisations as the next progression in the life of these programs. It highlights also the integral role young Aboriginal people play in the success of these initiatives. This thesis finishes by recommending investing in these future leaders in order to create sustainable organisations.
Downburst Prediction Applications of Meteorological Geostationary Satellites
Creators: name: Pryor, Kenneth L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: A suite of products has been developed and evaluated to assess hazards presented by convective storm downbursts derived from the current generation of Geostationary Operational Environmental Satellite (GOES) (13-15). The existing suite of GOES downburst prediction products employs the GOES sounder to calculate risk based on conceptual models of favorable environmental profiles for convective downburst generation. A diagnostic nowcasting product, the Microburst Windspeed Potential Index (MWPI), is designed to infer attributes of a favorable downburst environment: 1) the presence of large convective available potential energy (CAPE), and 2) the presence of a surface-based or elevated mixed layer with a steep temperature lapse rate and vertical relative humidity gradient. These conditions foster intense convective downdrafts upon the interaction of sub-saturated air in the elevated or sub-cloud mixed layer with the storm precipitation core. This paper provides an updated assessment of the MWPI algorithm, presents recent case studies demonstrating effective operational use of the MWPI product over the Atlantic coastal region, and presents validation results for the United States Great Plains and Mid-Atlantic coastal region. In addition, an application of the brightness temperature difference (BTD) between GOES imager water vapor (6.5μm) and thermal infrared (11μm) channels that identifies regions where downbursts are likely to develop, due to mid-tropospheric dry air entrainment, will be outlined.
description: 14 pages, 7 figures. Paper 9259-10 for SPIE Conference on Remote Sensing of the Atmosphere, Clouds, and Precipitation V
title: Ένα εργαλείο συστάσεων για κρατήσεις ξενοδοχείων
title: Α recommendation tool for hotel bookings
Creators: name: Παπαγεωργιου Δημητριος
Publisher: name: Technical University of Crete
Year: 2022

description: Βασικός σκοπός της παρούσας εργασίας είναι η κατασκευή διαδικτυακής εφαρμογής με σκοπό την εμφάνιση προσωποποιημένων προτάσεων καταλυμάτων στους χρήστες της. Ως μοναδικό δεδομένο και γνωσιακή βάση χρησιμοποιήθηκαν τα σχόλια και οι κριτικές επισκεπτών, που περιγράφουν την εμπειρία της επίσκεψης τους, σε κάθε κατάλυμα που ανήκει στη λίστα των αποτελεσμάτων μιας αναζήτησης στην πλατφόρμα Booking.com.
Αξιοποιώντας την μεγάλη πρόοδο τεχνικών ανάλυσης κειμένου (NLP) όπως αναγνώριση της θεματικής κατηγορίας (Aspect Extraction) στην οποία αναφέρεται, καθώς και του συναισθήματος που εκφράζει ο χρήστης (Sentiment Analysis), η πληροφορία που προκύπτει, αν η ανάλυση γίνει σωστά, μπορεί να περιγράψει πλήρως και με μεγάλη ακρίβεια την καταλληλόλητα του αντικειμένου μελέτης, στην περίπτωση αυτή ένα Ξενοδοχείο. Επιλέγοντας η ανάλυση των σχολίων να μην γίνει ρηχά, δηλαδή σε ολόκληρο το κείμενο σαν σύνολο, αλλά σε μικρές σε μέγεθος προτάσεις, με χρήση αλγόριθμου πρόβλεψης θέματος-συναισθήματος από κοινού (Aspect Based Sentiment Analysis), καθώς και η εκπαίδευση του αλγορίθμου χρησιμοποιώντας δεδομένα που λαμβάνουν υπόψη τα ειδικά χαρακτηρίστηκα του Domain προς ανάλυση (Domain Dependent - Accommodation) η ποιότητα των αποτελεσμάτων αυξάνεται σημαντικά.
Αντικείμενο μελέτης είναι και η δημιουργία λειτουργιών που επιτρέπουν στους χρήστες της εφαρμογής να φιλτράρουν, καθώς και να εντοπίζουν το ακριβές σημείο εμφάνισης, σύμφωνα με τα προσωπικά τους χαρακτηριστικά, τα εμφανιζόμενα σχόλια, κατηγοριοποιώντας τα ανάλογα με το θέμα το οποίο πραγματεύονται καθώς και το συναισθηματικό προσανατολισμό που προκύπτει από την ανάλυση του ελεύθερου κειμένου. Επίσης, έγινε μια προσπάθεια εμπλουτισμού της πληροφορίας που παρουσιάζεται στο χρήστη, όπως την εμφάνιση εκδηλώσεων που λαμβάνουν χώρα στη γύρω περιοχή του προορισμού, εκτενών στατιστικών στοιχείων σχετικά με την ικανοποίηση προηγούμενων επισκεπτών διαχωρισμένη σε θεματικές ενότητες που περιγράφουν την εμπειρία που αποκομίζει ένας επισκέπτης ενός καταλύματος, καθώς και πληροφορίες αποκλειστικά στοχευμένες στα ειδικά χαρακτηριστικά ενός χρήστη όπως η ημερομηνία άφιξης και αναχώρησης του, η κατηγορία στην οποία ανήκει (Solo, Group, Family) και η χώρα καταγωγής του.
Occupancy patterns of the invasive rainbow lorikeet (Trichoglossus haematodus) in Tasmania and the effect of urbanisation on native nectarivores
Creators: name: Dalladay, Ewan
Publisher: name: The Australian National University
Year: 2018

description: Anthropogenic development has affected ecosystems all over the world through many different processes. One process is the invasion of non-native species facilitated by human development. The impact of invasive species is not often fully understood, however this phenomenon is one of the most devastating mechanism of biodiversity loss on the planet. The rainbow lorikeet (Trichoglossus haematodus), native to continental Australia, is a competitive nectivore with invasive populations in Perth and Tasmania. The population in Tasmania is still small and the effects of this invasive species upon the native avifauna a still not yet known. Tasmania is home to many endemic and endangered species that share a similar lifestyle to the rainbow lorikeet, placing them at risk of displacement. The rainbow lorikeet is well adapted to the urban environment and it was hypothesised that the urban environment would play a large role in this species establishment. It was predicted that this species would occupy areas of Hobart that provide an abundance of parks and open areas. To fully understand the extent of the effect of urbanisation and the presence of rainbow lorikeets on the local avifauna, the occupancy patterns of 5 native nectivorous species were also recorded. It was also hypothesised that the presence of flowering Eucalyptus would be the strongest predictor of rainbow lorikeet occupancy. The results showed that this was not the case and that the strongest predictor for rainbow lorikeet occupancy was a positive correlation with number of buildings within 50m of the site. All the study species avoided the heavily urbanised city centre and, however a difference between native and invasive occupancy patterns could be seen in the use of the more rural areas on the edges of Hobart. The native species experienced an even spread of occupancy throughout the study area while the small population of invasive rainbow lorikeet was restricted to suburban sites. No significant negative influences of the invasive species upon the native avifauna was detected, however it is expected that competition for resources will increase with population size. This study has identified a positive association between the invasive rainbow lorikeet and the suburban landscape, which suggests the possibility of a facilitated population expansion. At the current population size most management options are still feasible and I would suggest action is taken as soon as possible.
KOMUNIKACJA W KRYZYSIE ELEMENTEM BUDOWY SKUTECZNEJ MARKI
Creators: name: Tworzydło, Dariusz
Publisher: name: figshare
Year: 2022
Subjects: subject: 200104 Media Studies
subject: FOS: Media and communications

description: Kryzys to słowo współcześnie odmieniane przez wszystkie przypadki i na różne sposoby. Rok 2008 stał się preludium do tego, co i obecnie, w roku 2011 dotyczy nie tylko przedsiębiorców, ale i każdego przeciętnego mieszkańca globu. Aczkolwiek kryzys, którym zajmuje się świat dotyczy głównie aspektów ekonomicznych. Mało kto mówi o innych jego implikacjach, jakimi są z pewnością problemy w przestrzeni wizerunkowej. Pomimo różnych definicji ekonomia i wizerunek nie są zbyt odległe od siebie, gdyż w przypadku szczególnie kryzysów jedno z drugim pojęciem ściśle się zazębia. Otóż, bardzo łatwo da się zauważyć, iż w sytuacji, gdy mają miejsce w firmie perturbacje natury ekonomicznej, niezwykle łatwe staje się przeniesienie tychże problemów na pole aktywności wizerunkowych. Liczby, które z natury rzeczy nie kłamią pokazują nam kierunek, który w dalszej konsekwencji przechwytywany jest przez komunikaty adresowane zarówno do wnętrza organizacji jak i poza jej obręb. I tak pogłębia się kryzys ogólny przed-siębiorstwa, a jego sytuacja staje się zdecydowanie nie komfortowa. Nie tylko stabilizacja ekonomiczna stanowi wówczas problem, ale i sposób jego komunikowania. Błędnie prowadzony proces zarządzania sytuacją kryzysową może przyczynić się po pierwsze do nieodwracalnych zmian w zakresie wizerunku lub wręcz do jego bankructwa, które może przełożyć się na straty finansowe. Dlatego też istotne jest przygotowanie odpowiedniej dokumentacji, która pomoże skutecznie się komunikować w kryzysie lub zapobiec kryzysowi zanim on jeszcze nadejdzie. Właśnie to, jest przedmiotem niniejszego artykułu, który ma pokazać czy polskie firmy są przygotowane na kryzys wizerunkowy i jak można sobie z nim poradzić. W artykule, w znacznej jego części, wykorzystano wyniki badań przeprowadzonych przez zespół badawczy pod kierownictwem autora publikacji oraz prezesa Alert Media Communications Adama Łaszyna.
Pearling instability of membrane tubes driven by curved proteins and actin polymerization
Creators: name: Jelerčič, Urška
name: Gov, Nir S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Membrane deformation inside living cells is crucial for the proper shaping of various intracellular organelles and is necessary during the fission/fusion processes that allow membrane recycling and transport (e.g. endocytosis). Proteins that induce membrane curvature play a key role in such processes, mostly by adsorbing to the membrane and forming a scaffold that deforms the membrane according to the curvature of the proteins. In this paper we explore the possibility of membrane tube destabilisation through a pearling mechanism enabled by the combined effects of the adsorbed curved proteins and the actin polymerization they may recruit. The pearling instability can furthermore serve as the initiation for fission of the tube into vesicles. We find that adsorbed proteins are more likely to stabilise the tubes, while the actin polymerization can provide the additional constrictive force needed for the robust instability. We discuss the relevance of the theoretical results to in-vivo and in-vitro experiments.
Frontipodopsis suturalis, n. sp.
Creators: name: Smit, Harry
name: Pešić, Vladimir
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Actinedida
Aturidae
Frontipodopsis
Frontipodopsis suturalis

description: Frontipodopsis suturalis n. sp.
(Figs. 21A–E)
Type series. Holotype female, Mahua stream, Mahua, Crocker Range, Borneo, Malaysia, 5° 47.838 N 116° 24.510 E, alt. 1052 m asl, 21-ix-2012 (RMNH).
Diagnosis. Venter with a median suture line extending to centre of idiosoma.
Description. Female: Idiosoma of pale undefined colour, 470 long, 300 high and 186 wide. Dorsum with a relatively short, pointed anterior sclerite bearing the postocularia and a long, rod- shaped posterior sclerite; dorsal furrow with two glandularia platelets and two pairs of slit organs (fused with glandularia platelets or separated). Median suture line of Cx-IV anteriorly extending until centre of idiosoma. Genital field fused to coxae with three pairs of acetabula and five paired setae. Excretory pore free in dorsal furrow, not on a platelet. Length/height of P1- P5: 18/18, 50/28, 26/22, 48/20, 28/12. Length of I-leg-4–6: 40, 42, 40. Length of IV-leg-4–6: 80, 78, 50. II-leg-5 and III-leg-5 with two swimming setae.
Male: Unknown.
Etymology. Named for the presence of a median suture line.
Remarks. The new species is close to F. reticulatifrons Szalay, 1945. Given the very wide distribution area of this species, ranging from Europe to Japan and from India to Borneo, the variation in the morphology is small. The three subspecies described from Iran (F. r. persicus Schwoerbel & Sepasgosarian, 1980), India (F. r. indicus Cook, 1967) and Japan (F. r. okinawaensis Imamura, 1957), should differ in length/height ratio of the idiosoma, shape of antenniform bristles and IV-leg. A diagnostic character of the new species not considered by previous authors is the median suture line between Cx-IV, which is absent in the nominate subspecies, F. r. okinawaensis and F. r. indicus (we examined a number of paratypes from Bhina River at Khed, India), but unknown for F. r. persicus Schwoerbel & Sepasgosarian, 1980.
Distribution. Borneo; known only from the locus typicus.
description: Published as part of Smit, Harry & Pešić, Vladimir, 2014, Water mites from Mount Kinabalu and the Crocker Range, Borneo, Malaysia (Acari: Hydrachnidia), with the description of 34 new species, pp. 1-71 in Zootaxa 3876 (1) on pages 36-38, DOI: 10.11646/zootaxa.3876.1.1, http://zenodo.org/record/287281
Javalbia montana, n. sp.
Creators: name: Smit, Harry
name: Pešić, Vladimir
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Aturidae
Javalbia
Javalbia montana

description: Javalbia montana n. sp.
(Figs. 22A–D)
Type series. Holotype male, Liwagu stream, at crossing with summit trail, Mt Kinabalu, Borneo, Malaysia, 6° 0 1.868 N 116° 32.912 E, alt. 1919 m asl, 11-ix-2012 (RMNH). Paratypes: two females, same data as holotype; one male, Mahua stream, Mahua, Crocker Range, Borneo, Malaysia, 5° 47.838 N 116° 24.510 E, alt. 1052 m asl, 21-ix-2012 (RMNH).
Other material: 0/1/0, Mahua River, upper course, Crocker Range, Borneo, 5° 47.939 N 116° 24.317 E, alt. 1050 m asl, 21-ix-2012.
Diagnosis. Platelets in dorsal furrow very long; a pair of glandularia platelets lying in an indentation at anterior end of dorsal shield; vgl-4 lying on a separate platelet.
Description. Colour pale yellow. Dorsal furrow anteriorly with indentations embracing a pair of glandularia platelets lying in the dorsal furrow. Dorsal shield with three pairs of glandularia. Dorsal furrow with three pairs of long glandularia platelets, the middle platelet being the longest. Vgl-4 lying on a separate platelet. P5 slender.
Male: Idiosoma 480 (452) long and 332 (308) wide. Dorsal shield 474 (445) long and 293 (275) wide, eye pigment absent. Longest platelet in dorsal furrow 86 long; only two pairs of slit organs visible. Gonopore 50 long. Genital field with three pairs of triangular acetabula. Excretory pore lying on an indistinct platelet posterior of genital field. Length/height of P2-P5: 34/25, 24/22, 56/18, 28/8. Length of I-leg-4-6: 50, 58, 34. Length of IV-leg-4-6: 60, 62, 44.
Female: Idiosoma 486 (474) long and 348 (335) wide. Dorsal shield 482 (470) long and 300 (284) wide. A pair of genital plates fused medially, each with three acetabula. Vgl-4 lying on a separate platelet. Length of P1-P5: 24/ 13, 38/26, 28/22, 60/18, 20/8. Length of I-leg-4-6: 50, 57, 36. Length of IV-leg-4-6: 58, 62, 46.
Etymology. Named for its occurrence in the mountains.
Remarks. The following species have similar long glandularia platelets in the dorsal furrow and three pairs of acetabula: J. elliptica K. Viets, 1935, (Java), J. antama Cook, 1967 (India), J. punya Cook, 1967 (India) and J. sunyi Wiles, 1991 (mainland Malaysia). Of these, the only with an indentation in the anterior part of the dorsal shield, J. sunyi, has only two elongated platelets in the dorsal furrow.
Distribution. Borneo.
description: Published as part of Smit, Harry & Pešić, Vladimir, 2014, Water mites from Mount Kinabalu and the Crocker Range, Borneo, Malaysia (Acari: Hydrachnidia), with the description of 34 new species, pp. 1-71 in Zootaxa 3876 (1) on pages 38-40, DOI: 10.11646/zootaxa.3876.1.1, http://zenodo.org/record/287281
The degrees of ill-posedness in stochastic and deterministic noise models
Creators: name: Nussbaum, Michael
name: Pereverzev, Sergei V.
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: Ill-posed problems
subject: inverse estimation
subject: operator equations
subject: Gaussian noise
subject: optimal difficulty
subject: regularized inverse estimator
subject: 62G05
subject: 65J10
subject: 41A25

description: The degrees of ill-posedness for inverse estimation in Hilbert scales in the presence of deterministic and random noise are compared. For Gaussian random noise with different "smoothness" the optimal order of the rate of convergence for above mentioned estimation is indicated.
Catalytic and mutually catalytic branching
Creators: name: Dawson, Donald A.
name: Fleischmann, Klaus
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: Catalytic super-Brownian motion
subject: catalytic super-random walk
subject: catalyst
subject: reactant
subject: superprocess
subject: measure-valued branching
subject: absolute continuity
subject: self-similarity
subject: collision local time
subject: glycolysis
subject: martingale problem
subject: segregation of types
subject: coexistence of types
subject: self-duality
subject: 60K35
subject: 60J80
subject: 60G57

description: In this paper we present an overview of recent work on lattice and measure-valued models of catalytic reactions and in particular catalytic branching systems. The main phenomena exhibited by nearly critical branching systems are dimension-dependent clumping in small and large space and time scales. Special emphasis is given to the effects which occur when the catalyst is highly clumped and in particular when in the continuum models the catalyst is a time-dependent singular measure. Finally, the interactive model of mutually catalytic branching is described and some recent results are reviewed. - The basic tools include log-Laplace functionals, measure-valued martingale problems, collision local times, and duality.
A method for estimating the cooperativity length in polymers
Creators: name: Pieruccini, Marco
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences
subject: 82-02

description: The problem of estimating the size of the cooperatively rearranging regions (CRRs) in supercooled polymeric melts from the analysis of the $α$-process in ordinary relaxation experiments is addressed. The system is treated with the canonical formalism as an ensemble of CRRs, which are described by a stationary distribution relative to the rearrangement energy threshold. The process whereby a CRR changes its configuration is viewed as consisting of two distinct steps: a reduced number of monomers reaches initially an activated state allowing for some local rearrangement; then, the regression of the energy fluctuation may take place through the configurational degrees of freedom, thus allowing for further rearrangements on larger length-scales. The latter are indeed those to which the well known Donth's scheme refers. Two main regimes are envisaged, depending on wether the role played by the configurational degrees of freedom in the regression of the energy fluctuation is significant or not. It is argued that the latter case is related to the occurrence of an arrhenian dependence of the central relaxation time. Data of the literature are rediscussed within this new framework.
description: 18 pages, 3 figures, 4 Tables
Resolvent and heat kernel properties for second order elliptic differential operators with general boundary conditions on L^p
Creators: name: Griepentrog, Jens André
name: Kaiser, Hans-Christoph
name: Rehberg, Joachim
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: Elliptic differential operators on Lipschitz domains in arbitrary space dimension
subject: regular sets
subject: essentially bounded coefficients
subject: mixed boundary conditions
subject: resolvent estimates
subject: heat kernel properties
subject: symmetric Markov semigroups on L^p
subject: ultracontractivity
subject: linear and semilinear parabolic equations
subject: Hölder continuity
subject: 58D25
subject: 35B65
subject: 35P10

description: Under general (including mixed) boundary conditions, nonsmooth coefficients and weak assumptions on the spatial domain, resolvent estimates for second order elliptic operators in divergence form are proved. The semigroups generated by them are analytic, map into Hölder spaces, are positivity improving, and their heat kernels are Hölder continuous in both arguments. We regard perturbations of the elliptic operator by nonnegative potentials, by first order differential operators and multiplicative perturbations. Finally the results provide that the solutions of the corresponding linear and semilinear parabolic equations are Hölder continuous in space and time.
Effects of a time-varying color-luminosity parameter $β$ on the cosmological constraints of modified gravity models
Creators: name: Wang, Shuang
name: Wang, Yong-Zhen
name: Zhang, Xin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It has been found that, for the Supernova Legacy Survey three-year (SNLS3) data, there is strong evidence for the redshift-evolution of color-luminosity parameter $β$. In previous studies, only dark energy (DE) models are used to explore the effects of a time-varying $β$ on parameter estimation. In this paper, we extend the discussions to the case of modified gravity (MG), by considering Dvali-Gabadadze-Porrati (DGP) model, power-law type $f(T)$ model and exponential type $f(T)$ model. In addition to the SNLS3 data, we also use the latest Planck distance priors data, the galaxy clustering (GC) data extracted from Sloan Digital Sky Survey (SDSS) data release 7 (DR7) and Baryon Oscillation Spectroscopic Survey (BOSS), as well as the direct measurement of Hubble constant $H_0$ from the Hubble Space Telescope (HST) observation. We find that, for both cases of using the supernova (SN) data alone and using the combination of all data, adding a parameter of $β$ can reduce $χ^2$ by $\sim$ 36 for all the MG models, showing that a constant $β$ is ruled out at 6$σ$ confidence level (CL). Moreover, we find that a time-varying $β$ always yields a larger fractional matter density $Ω_{m0}$ and a smaller reduced Hubble constant $h$; in addition, it significantly changes the shapes of 1$σ$ and 2$σ$ confidence regions of various MG models, and thus corrects systematic bias for the parameter estimation. These conclusions are consistent with the results of DE models, showing that $β$'s evolution is completely independent of the cosmological models in the background. Therefore, our work highlights the importance of considering the evolution of $β$ in the cosmology-fits.
description: 11 pages, 7 figures, 2 tables. arXiv admin note: substantial text overlap with arXiv:1406.0072, arXiv:1312.0184, arXiv:1310.6109
Quadrature methods for 2D and 3D problems
Creators: name: Rathsfeld, Andreas
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: integral equations
subject: quadrature methods
subject: stability
subject: convergence
subject: 65R20
subject: 65N38
subject: 45L10

description: In this paper we give an overview on well-known stability and convergence results for simple quadrature methods based on low order composite quadrature rules and applied to the numerical solution of integral equations over smooth manifolds. First we explain the methods for the case of second-kind equations. Then we discuss what is known for the analysis of pseudodifferential equations. We explain why these simple methods are not recommended for integral equations over domains with dimension higher than one. Finally, for the solution of a two-dimensional singular integral equation, we prove a new result on a quadrature method based on product rules.
Surface waves at a free interface of a saturated porous medium
Creators: name: Edelman, Inna
name: Radkevich, Evgeniy
name: Wilmański, Krzysztof
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: Partial differential equations
subject: waves in porous media
subject: 35C20
subject: 35L50
subject: 73D20

description: Surface waves at a free interface of a saturated porous medium are investigated. Existence and peculiarities of surface wave propagation were revealed. Two types of surface waves proved possible: true surface wave, propagating almost without dispersion, and generalized Rayleigh wave, which attenuates along the propagation direction.
Existence and uniqueness of weak solutions of an initial boundary value problem arising in laser dynamics
Creators: name: Jochmann, Frank
name: Recke, Lutz
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: Laser dynamics modelling
subject: existence
subject: uniqueness and regularity of weak solutions
subject: discontinuous data
subject: 35Q60
subject: 35L50
subject: 35D05

description: In this paper a mathematical model for the dynamical behavior of multisection DFB (distributed feedback) semiconductor lasers in the case of arbitrarily space depending carrier densities is investigated. We introduce a suitable weak formulation of the initial boundary value problem and prove existence, uniqueness and some regularity properties of the solution. The assumptions on the data are quite general, in particular, the physically relevant case of piecewise smooth, but discontinuous coefficients is included.
Modeling of Self-Pulsating DFB Lasers
Creators: name: Brox, Olaf
name: Hoffmann, Detlef
name: Radziunas, Mindaugas
name: Sartorius, Bernd
name: Schneider, Klaus R.
name: Wünsche, Hans-Jürgen
Publisher: name: Weierstrass Institute
Year: 1999
Subjects: subject: Semiconductor laser
subject: DFB lasers
subject: Self-Pulsations
subject: 78A60
subject: 78-05
subject: 78A55

description: A theoretical model of a self-pulsating three section DFB-laser with an integrated phase tuning section is established. It is based on traveling wave equations and the standard carrier rate equations. As the key conditions for obtaining self-pulsations the spectral correlation of the different device sections are considered. The specific roles of each section are discussed and the theoretical results are compared to experimental measurements on these devices.
Copernicus Sentinel-3 Sea (and sea-Ice) Surface Temperature: product status, evolutions and projects
Creators: name: O'Carroll, Anne
Publisher: name: Zenodo
Year: 2022

description: Presented at the GHRSST XXIII international science team meeting, 27 June-1 July 2022, online and in-person (Barcelona). #GHRSST23 Short abstract The first Copernicus Sentinel-3 satellite was launched on 16th February 2016 and the second on 25th April 2018. The Sentinel-3A/B satellites observe high quality Sea Surface Temperature (SST) from the Sea and Land Surface Temperature Radiometer (SLSTR). These accurate SSTs provide a reference satellite SST dataset and time-series for other satellite SST missions and are important for climate monitoring. Operational SLSTR SST products have been distributed from the EUMETSAT marine centre since 5th July 2017. EUMETSAT performs ongoing validation activities for SLSTR SST, together in coordination with the Sentinel-3 validation team, and real time monitoring is shown from the link to metis.eumetsat.int. Validation results show the products performing extremely well, and dual-view SSTs recommended to be used as a reference SST source, with some users already using SLSTR SST reference data. EUMETSAT began activities in 2021 towards revised and improved algorithms for SLSTR SST and sea-ice Surface Temperature (ST) with the intention of the operational implementation of SLSTR day-2 SST and day-1 sea-ice ST by 2025. This includes improvements to the Bayesian cloud-screening, retrieval coefficient updates, inclusion of depth SST in addition to skin SST, potential evolution to include full nadir grid, and the first operational implementation of sea-ice ST for SLSTR. Shorter term improvements, planned by 2023, include revised SST coefficients, updates to ADI and DDI tests, and updates to SSES scheme. A demonstrational sea-ice ST prototype processor has been implemented on the Copernicus WEkEO platform. Recent results and information on further ongoing projects and evolutions relating to Sea Surface Temperature at EUMETSAT will be presented. Ongoing validation activities are important for assessing and maintaining SLSTR SST product quality. In addition to inter-comparisons with other satellite SST, key components are collocations and analyses with drifting buoy SSTs. A Copernicus-funded EUMETSAT project called ‘Towards Fiducial Reference Measurements (FRM) of Sea-Surface Temperature by European Drifters’ (TRUSTED) is now in its fifth year. Over 150 high-resolution drifting buoys (HRSST-2), plus calibration per sensor, have been deployed so far. A service of measurements will continue at a rate of additional 25 buoys per year, with a focus at higher latitudes and other priority regions. Activities have also begun towards the requirements, design and prototype of sea-ice surface temperature drifting buoys needed for the validation of Copernicus satellite sea-ice surface temperature products. Activities continue to assess and validate these reference buoys as FRM for SLSTR together in coordination with the GHRSST HRSST Task Team.  
Multisoliton Newton's cradles and supersolitons in regular and PT-symmetric nonlinear couplers
Creators: name: Li, Pengfei
name: Li, Lu
name: Malomed, Boris A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate the existence of stable collective excitation in the form of "supersolitons" propagating through chains of solitons with alternating signs (i.e., Newton's cradles built of solitons) in nonlinear optical couplers, including the PT-symmetric version thereof. In the regular coupler, stable supersolitons are created in the cradles composed of both symmetric solitons and asymmetric ones with alternating polarities. Collisions between moving supersolitons are investigated too, by the means of direct simulations in both the regular and PT-symmetric couplers.
description: 8 pages, 8 figures, Physical Review E, in press
Terahertz radiation induced by coherent phonon generation via impulsive stimulated Raman scattering in paratellurite
Creators: name: Sotome, M.
name: Kida, N.
name: Takeda, R.
name: Okamoto, H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the observation of terahertz radiation in a non-centrosymmetric insulating oxide, paratellurite ($α$-TeO$_2$) by irradiation of a femtosecond laser pulse at room temperature. In the power spectrum of the terahertz radiation, an intensity fringe pattern with a period of $\sim$ 0.25 THz shows up below 3 THz. It can be reproduced by taking into account the effective generation length for the terahertz radiation with a poor phase-matching condition. In addition, a temporal oscillation component appears in the radiated terahertz wave with a frequency of $\sim$ 3.71 THz, which is in good agreement with the center frequency of the Raman active longitudinal optical (LO) $E$ mode. On the basis of comprehensive polarized optical and Raman spectroscopic studies, we explain the generation mechanism of the temporal oscillation component in terms of the coherent phonon generation via impulsive stimulated Raman scattering.
description: 28 pages including 13 figures and 3 tables: Comments are welcome