4,424 research outputs found
Trapping Phenomenon Attenuates the Consequences of Tipping Points for Limit Cycles
We would like to thank the partial support of this work by the Brazilian agencies FAPESP (processes: 2011/19296-1, 2013/26598-0, and 2015/20407-3), CNPq and CAPES. MSB acknowledges EPSRC Ref. EP/I032606/1.Peer reviewedPublisher PD
Discrimination of two mixed quantum states with maximum confidence and minimum probability of inconclusive results
We study an optimized measurement that discriminates two mixed quantum states
with maximum confidence for each conclusive result, thereby keeping the overall
probability of inconclusive results as small as possible. When the rank of the
detection operators associated with the two different conclusive outcomes does
not exceed unity we obtain a general solution. As an application, we consider
the discrimination of two mixed qubit states. Moreover, for the case of
higher-rank detection operators we give a solution for particular states. The
relation of the optimized measurement to other discrimination schemes is also
discussed.Comment: 7 pages, 1 figure, accepted for publication in Phys. Rev.
Sign-speaking: The structure of simultaneous bimodal utterances
We present data from a bimodal trilingual situation involving Indian Sign Language (ISL), Hindi and English. Signers are co-using these languages while in group conversations with deaf people and hearing non-signers. The data show that in this context, English is an embedded language that does not impact on the grammar of the utterances, while both ISL and Hindi structures are realised throughout. The data show mismatches between the simultaneously expressed ISL and Hindi, such that semantic content and/or syntactic structures are different in both languages, yet are produced at the same time. The data also include instances of different propositions expressed simultaneously in the two languages. This under-documented behaviour is called âsign-speakingâ here, and we explore its implications for theories of multilingualism, code-switching, and bilingual language production
Ordered Array of Single Au Adatoms with Remarkable Thermal Stability: Au/Fe3O4(001)
We present a Scanning Tunneling Microscopy (STM) investigation of gold
deposited at the magnetite Fe3O4(001) surface at room temperature. This surface
forms a reconstruction with (\surd2\times\surd2)R45{\deg} symmetry, where pairs
of Fe and neighboring O ions are slightly displaced laterally, forming
undulating rows with 'narrow' and 'wide' adsorption sites. At fractional
monolayer coverages, single Au adatoms adsorb exclusively at the narrow sites,
with no significant sintering up to annealing temperatures of 400 {\deg}C. The
strong preference for this site is possibly related to charge and orbital
ordering within the first subsurface layer of the reconstructed Fe3O4(001)
surface. Because of their high thermal stability, the ordered Au atoms at
Fe3O4(001)- (\surd2\times\surd2)R45{\deg} could provide useful for probing the
chemical reactivity of single atomic species.Comment: Duplicate entry, newer version at 1205.0915.
http://arxiv.org/abs/1205.091
Recommended from our members
Sanitation Realities in Peri-Urban Communities: Unfreedoms, Capabilities and the Conscious Mind - A Case of Chennai, India
This thesis assesses sanitation realities experienced by peri-urban slum dwellers in Chennai, India, to investigate whether rapid economic growth translates into pervasive safe sanitation, otherwise a threat to human security. This is in line with the Sustainable Development Goals of âleaving no one behindâ. The empirical methodology consists of qualitative comparative case studies approached through rapid appraisal. At least 5 interviews at each of the 10 different slum settlement locations within the Chennai Metropolitan area were conducted. Both the locations and the settlers were conveniently sampled. The settlements were chosen as they mostly lay in a rapidly urbanizing area. The selection of interviewee was determined by availability, yet leaning towards women who are more vulnerable when lacking safe sanitation facilities, and who are the primary caregivers in the household. The research found that out of the 10 settlements visited, 5 habitually practiced open defecation, as no sanitation facilities were available. Hence some settlers were restricted in their freedom to be safe from emotional or physical harm: threatened by dangerous pathogens released into the environment, and insecurities due to lack of privacy. Conceptually the thesis applies an understanding of how affecting influences in individual history and living environment impact upon an individualâs conscious mind, connecting the capability approach to consciousness research. The thesis argues how settlers, overlooked by public services, and subjected to the dangerous and humiliating practice of open defecation, are faced with mental health issues and a diminished likelihood to productively engage, and exercise agency for human growth
eine Analyse deutscher Pressekommentare zum EUâBeitritt der TĂŒrkei
Trotz der erfolgreichen politischen und wirtschaftlichen Regimebildung der
EuropÀischen Union gab es bislang keine umfassendere gesellschaftliche Debatte
ĂŒber die Frage, welche Art von Gemeinwesen die EU in den Augen der breiteren
Ăffentlichkeit sein soll. Dies Ă€nderte sich mit der Auseinandersetzung ĂŒber
den möglichen EU-Beitritt der TĂŒrkei. Dort prallten erstmals auch öffentlich
unterschiedliche Vorstellungen ĂŒber die mögliche Ausgestaltung der EU
aufeinander. Der vorliegende Artikel rekonstruiert auf Basis einer Analyse der
Kommentare deutscher Leit-Printmedien das inhaltliche Spektrum dieser
Vorstellungen. Er kann zeigen, dass sich diesbezĂŒglich eine Vielzahl
unterschiedlicher EntwĂŒrfe der EU finden lĂ€sst, die u.a. auf politische und
kulturelle Traditionslinien, ökonomische und weltpolitische Interessenlagen
sowie auf die geografische Lage der TĂŒrkei verweisen. Zudem wird verdeutlicht,
dass diese unterschiedlichen EntwĂŒrfe von Zeitungen mit unterschiedlichen
weltanschaulichen Positionen in verschiedener Weise verwendet werden, und dass
sie mit differierenden Bewertungen des EU-Beitritts der TĂŒrkei einhergehen
- âŠ