cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Split-ring resonator with interdigital Split electrodes as detector for liquid and ion chromatography
Creators: name: Dehning, Kirsten J.
name: Hitzemann, Moritz
name: Zimmermann, Stefan
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2024
Subjects: subject: Equivalent circuit
subject: Ion chromatography
subject: Liquid chromatography
subject: Split-ring resonator
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::600 | Technik

description: The analysis of food and drugs as well as the monitoring of chemical processes and bioreactors by high-performance liquid chromatography and ion chromatography requires universal, cost-effective, and sensitive detectors. Therefore, this work presents a split-ring resonator that detects changes in the electrical and dielectric properties of the eluate from liquid chromatography or ion chromatography by monitoring the amplitude of the transmitted signal using an envelope detector. The used split-ring resonator consists of a simple printed circuit board featuring two microstrip lines. One is formed to a ring with interdigital split electrodes. The interdigital split electrodes forming the sensitive area significantly enhance the sensitivity to changes in relative permittivity, dielectric losses and electrical conductivity of the eluate In addition, the split-ring resonator is a small, inexpensive and easy-to-use detector that uses several dielectric parameters simultaneously for the measurement. Furthermore, the split-ring resonator measures these parameters at a significantly lower frequency than optical detectors and therefore measures different changes in frequency-dependent permittivity. For demonstrating feasibility of a split-ring resonator as a detector for high-performance liquid chromatography and ion chromatography, various anion and cation standards, basic and acidic amino acids, sugars, as well as sugar alcohols were separated and detected. A conductivity detector for ion chromatography and a refractive index detector for high-performance liquid chromatography were used as reference detectors.
Towards trigonometric deformation of $\widehat{\mathfrak{sl}}_2$ coset VOA
Creators: name: Feigin, B.
name: Jimbo, M.
name: Mukhin, E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We discuss the quantization of the $\widehat{\mathfrak{sl}}_2$ coset vertex operator algebra $\mathcal{W}D(2,1;α)$ using the bosonization technique. We show that after quantization there exist three families of commuting integrals of motion coming from three copies of the quantum toroidal algebra associated to ${\mathfrak{gl}}_2$.
description: Latex, 20 pages
Individuality, Embodiment and the Female Interpreter in Woman Times Seven and The Interpreter
Creators: name: Apostolou, Fotini
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2010

description: Interpreters, enclosed in the marginalized spaces of their booths, are often perceived as a non-presence in the conference process, mere shadows of the speakers, who have to deliver the other's textual body faithfully and objectively to an unknown audience without any involvement. In this paper, contrary to the above approach, I wish to focus on the gendered physical presence of the interpreter and see how her image has been pre­sented through time with a focus on two films: Vittorio de Sica's Woman Times Seven and Sydney Pollack's The Interpreter. Through the male gaze of the films, the neutrality and "absence" of the interpreter is reconsidered. Emphasis is rather on the two women interpreters' physicality and differ­ent kinds of involvement (emotional, sexual, political) with their male au­diences. The image of the interpreter in the films is completely different from the dictates of professional codes of ethics, which call for neutrality and uninvolvement, in other words, for an absence of the individual in­terpreter, who has to remain a mediator in the communication chain.
description: Gramma: Journal of Theory and Criticism, Vol 18 (2010): The Individual and the Mass: Literary and Cultural Reflections
Additional file 1 of Serum fibroblast growth factor-2 levels complement vital biomarkers for diagnosing heart failure
Creators: name: Yu, Z. L.
name: Cai, Z. H.
name: Zheng, J. T.
name: Jiang, H. Y.
name: Zhou, Y. Q.
name: Wong, N. K.
name: Fu, H. B.
name: Hong, X. B.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Table S1 ROC curve: HF vs non HF. Table S2 Circulating levels of FGF2 in healthy controls (n=36) and HF cases with ejection fraction (EF)<45% (n=16) and EF>45% (n=64). Table S3 Expression levels of FGF2 according to New York Heart Association cardiac function classification. Table S4 Expression levels of FGF2 in different HF types. Table S5 Expression levels of FGF2 in groups with different HF etiologies. Table S6 Spearman correlation of FGF2 level with N-terminal pro-B-type natriuretic peptide level. Table S7 Spearman correlation of FGF2 level with EF. Figure S1 FGF2 levels in patients with HF(-) AF(-),HF(+)AF(-)and HF(+)AF(+).
Effective action and decoherence by fermions in quantum cosmology
Creators: name: Barvinsky, A.
name: Kamenshchik, A.
name: Kiefer, C.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop the formalism for the one-loop no-boundary state in a cosmological model with fermions. We use it to calculate the reduced density matrix for an inflaton field by tracing out the fermionic degrees of freedom, yielding both the fermionic effective action and the standard decoherence factor. We show that dimensional regularisation of ultraviolet divergences would lead to an inconsistent density matrix. Suppression of these divergences to zero is instead performed through a nonlocal Bogoliubov transformation of the fermionic variables, which leads to a consistent density matrix. The resulting degree of decoherence is less than in the case of bosonic fields.
description: Latex, 26 pages
title: Ð¡Ð¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½ÑÐ¼Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸ Ð² IT Ð¸Ð½Ð´ÑÑÑÑÐ¸Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Improving methods for managing software projects in the IT industry
Creators: name: Ð¥Ð¾Ð»ÐºÐ¸Ð½, ÐÐ¸ÐºÐ¾Ð»Ð°Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸
Ð¼ÐµÑÐ¾Ð´Ð¾Ð»Ð¾Ð³Ð¸Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸
IT - Ð¿ÑÐ¾ÐµÐºÑÑ
Agile
Scrum
ScrumBan
project management
project management methodology
IT projects

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð°Ð½Ð°Ð»Ð¸Ð·Ñ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ñ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ Ð¸ Ð¿Ð¾Ð´ÑÐ¾Ð´Ð¾Ð² Ðº ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ IT - Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸, Ð²ÑÐ±Ð¾ÑÑ Ð¼ÐµÑÐ¾Ð´Ð° ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸ Ð¿Ð¾Ð´ ÐºÐ¾Ð¼Ð°Ð½Ð´Ñ ÑÐµÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¹ IT ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸, ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ñ Ð²ÑÐ±ÑÐ°Ð½Ð½Ð¾Ð³Ð¾ Ð¼ÐµÑÐ¾Ð´Ð° Ð¿ÑÑÐµÐ¼ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¹ Ð¸ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½ÑÐ¾Ð², Ð° ÑÐ°ÐºÐ¶Ðµ Ð°Ð¿ÑÐ¾Ð±Ð°ÑÐ¸Ñ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð¼ÐµÑÐ¾Ð´Ð° ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð½Ð° ÐºÐ¾Ð¼Ð°Ð½Ð´Ðµ ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸ÑÑÐ¾Ð².
description: This paper focuses on analyzing existing models and approaches to managing IT projects, selecting a project management method for the testing team of a Russian IT company, improving the selected method by developing recommendations and components, as well as testing the improved management method on a team of specialists.
Supplementary Figure 2 from Phylogenomics of Aplacophora (Mollusca, Aculifera) and a solenogaster without a foot
Creators: name: Kocot, Kevin M.
name: Todt, Christiane
name: Mikkelsen, Nina T.
name: Halanych, Kenneth M.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 60301 Animal Systematics and Taxonomy
subject: FOS: Biological sciences
subject: 60310 Plant Systematics and Taxonomy

description: Recent molecular phylogenetic investigations strongly supported the placement of the shell-less, worm-shaped aplacophoran molluscs (Solenogastres and Caudofoveata) and chitons (Polyplacophora) in a clade called Aculifera, which is the sister taxon of all other molluscs. Thus, understanding the evolutionary history of aculiferan molluscs is important for understanding early molluscan evolution. In particular, fundamental questions about evolutionary relationships within Aplacophora have long been unanswered. Here, we supplemented the paucity of available data with transcriptomes from 25 aculiferans and conducted phylogenomic analyses on datasets with up to 525 genes and 75 914 amino acid positions. Our results indicate that aplacophoran taxonomy requires revision as several traditionally recognized groups are non-monophyletic. Most notably, Cavibelonia, the solenogaster taxon defined by hollow sclerites, is polyphyletic, suggesting parallel evolution of hollow sclerites in multiple lineages. Moreover, we describe Apodomenia enigmatica sp. nov., a bizarre new species that appears to be a morphological intermediate between Solenogastres and Caudofoveata. This animal is not a missing link, however; molecular and morphological studies show that it is a derived solenogaster that lacks a foot, mantle cavity and radula. Taken together, these results shed light on the evolutionary history of Aplacophora and reveal a surprising degree of morphological plasticity within the group.
Prepare for Glory: The Multiplication of the Digitally Hyperreal Hero in Frank Miller's/ Zack Snyder's 300
Creators: name: Dimitriadis, Giorgos
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2010

description: The filmic adaptation of Frank Miller's graphic novel 300 by Zack Snyder stands right between recorded history and postmodern entertainment, with its storyline crammed between an actual event and its virtual filmic shell. The muscular homogeneity of the Spartan army, made possible with digital technology, is viewed as a kaleidoscopic reflection of the relation between one story and its many narrated versions, visually exemplified by the army of 300 Spartans, in which specificity is effaced and the individual conflates with the dehumanized mass. Drawing on the libidinal dynamics of male muscularity, the film fuses history, the superhero tradition and current so­cial anxieties to present an abstract ideal, death in the noble service of free­dom, through a specific, contemporary viewpoint. Digital post-processing ensures that the aesthetics of the film is the same as that of the graphic novel, minimalist but hardly life-like; thus the film celebrates the ability of digital imaging to transform a single abstract idea/ ideal into a pop culture spectacle, faithful, as such, to the time and era that it addresses.
description: Gramma: Journal of Theory and Criticism, Vol 18 (2010): The Individual and the Mass: Literary and Cultural Reflections
Supplementary Tables from Phylogenomics of Aplacophora (Mollusca, Aculifera) and a solenogaster without a foot
Creators: name: Kocot, Kevin M.
name: Todt, Christiane
name: Mikkelsen, Nina T.
name: Halanych, Kenneth M.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 60301 Animal Systematics and Taxonomy
subject: FOS: Biological sciences
subject: 60310 Plant Systematics and Taxonomy

description: Recent molecular phylogenetic investigations strongly supported the placement of the shell-less, worm-shaped aplacophoran molluscs (Solenogastres and Caudofoveata) and chitons (Polyplacophora) in a clade called Aculifera, which is the sister taxon of all other molluscs. Thus, understanding the evolutionary history of aculiferan molluscs is important for understanding early molluscan evolution. In particular, fundamental questions about evolutionary relationships within Aplacophora have long been unanswered. Here, we supplemented the paucity of available data with transcriptomes from 25 aculiferans and conducted phylogenomic analyses on datasets with up to 525 genes and 75 914 amino acid positions. Our results indicate that aplacophoran taxonomy requires revision as several traditionally recognized groups are non-monophyletic. Most notably, Cavibelonia, the solenogaster taxon defined by hollow sclerites, is polyphyletic, suggesting parallel evolution of hollow sclerites in multiple lineages. Moreover, we describe Apodomenia enigmatica sp. nov., a bizarre new species that appears to be a morphological intermediate between Solenogastres and Caudofoveata. This animal is not a missing link, however; molecular and morphological studies show that it is a derived solenogaster that lacks a foot, mantle cavity and radula. Taken together, these results shed light on the evolutionary history of Aplacophora and reveal a surprising degree of morphological plasticity within the group.
The Russian Crisis Communication Response beyond Mh17 Tragedy
Creators: name: Arandas, Mohammed Fadel
Publisher: name: figshare
Year: 2021
Subjects: subject: 200101 Communication Studies
subject: FOS: Media and communications
subject: 200104 Media Studies

description: Effective crisis communication response through using the proper strategies is critical to cope with crises and to protect the reputation and existence of the involved parties. Usually, aviation accidents receive great attention from the media and the public. Malaysia Airlines Flight 17 (MH17) which was shot down over eastern Ukraine on 17 July 2014 during its scheduled flight from Amsterdam to Kuala Lumpur received global attention. This attention was due to the involvement of several countries either at the level of the countries of victims or the countries accused of the attack. Image repair theory proposed by William Benoit, the widely used in crisis communication response was implemented in this study. The Russian response to the international accusation, especially from the Western world on supporting the attackers of MH17 has been examined in this study. This study implemented both quantitative and qualitative content analysis to achieve its aims. A total of 306 news stories from the online New Straits Times newspaper Website from the years 2014 to 2019 were analysed. A total of 191 strategies were included in 123 news stories since some stories combined more than a strategy. Out of 191 strategies, 43.5% were simple denial, followed by shift the blame and attack accuser with 35.1% and 21.5% respectively. The results revealed that the image repair effort by Russia was effective and successful.
Staging (Dis)Connections between the Individual and the Mass in Contemporary Literature: From the Pathological "Mass in Person" to the Globalized Subject
Creators: name: Butter, Stella
Publisher: name: Gramma: Journal of Theory and Criticism
Year: 2010

description: This article examines literary stagings of the relationship between the in­dividual and the mass in contemporary literature by drawing on four case studies: Bret Easton Ellis's American Psycho (1991), Jon McGregor's If No­body Speaks of Remarkable Things (2002), David Mitchell's Ghostwritten (1999) and David Harrower's play Kill the Old Torture Their Young (1998). Ellis and Harrower foreground the erosion of subjectivity within today's abstract society. The dark satire of Ellis's novel highlights how the cyni­cism of the information age and capitalist exchange reduces the individual to a pathological "mass in person." The depersonalization of social inter­action also takes centre stage in Harrower's play. In contrast, McGregor's novel depicts the individual as part of an organic whole, which allows for spiritual connectivity transcending factors such as gender or ethnicity. A different take on the individual and the mass is offered by Ghostwritten insofar as it accentuates the interconnectivity of individuals in a globalized world and how power dynamics shape the interplay of the global and local.
description: Gramma: Journal of Theory and Criticism, Vol 18 (2010): The Individual and the Mass: Literary and Cultural Reflections
title: Wie wirkt sich Berufserfahrung vor dem Medizinstudium auf den Studienerfolg und die ärztliche Tätigkeit aus?
Creators: name: Giesler, Marianne
name: Hahn, Petra
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund und Ziel der Studie: Gemäß einem Urteil des Bundesverfassungsgerichts wird die bisherige Regelung zur Vergabe von Studienplätzen in der Medizin verändert werden. Neben der Abiturnote sollen künftig weitere eignungsbasierte Kriterien bei der Auswahl von Bewerberinnen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
Supplementary Figure 3 from Phylogenomics of Aplacophora (Mollusca, Aculifera) and a solenogaster without a foot
Creators: name: Kocot, Kevin M.
name: Todt, Christiane
name: Mikkelsen, Nina T.
name: Halanych, Kenneth M.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 60301 Animal Systematics and Taxonomy
subject: FOS: Biological sciences
subject: 60310 Plant Systematics and Taxonomy

description: Recent molecular phylogenetic investigations strongly supported the placement of the shell-less, worm-shaped aplacophoran molluscs (Solenogastres and Caudofoveata) and chitons (Polyplacophora) in a clade called Aculifera, which is the sister taxon of all other molluscs. Thus, understanding the evolutionary history of aculiferan molluscs is important for understanding early molluscan evolution. In particular, fundamental questions about evolutionary relationships within Aplacophora have long been unanswered. Here, we supplemented the paucity of available data with transcriptomes from 25 aculiferans and conducted phylogenomic analyses on datasets with up to 525 genes and 75 914 amino acid positions. Our results indicate that aplacophoran taxonomy requires revision as several traditionally recognized groups are non-monophyletic. Most notably, Cavibelonia, the solenogaster taxon defined by hollow sclerites, is polyphyletic, suggesting parallel evolution of hollow sclerites in multiple lineages. Moreover, we describe Apodomenia enigmatica sp. nov., a bizarre new species that appears to be a morphological intermediate between Solenogastres and Caudofoveata. This animal is not a missing link, however; molecular and morphological studies show that it is a derived solenogaster that lacks a foot, mantle cavity and radula. Taken together, these results shed light on the evolutionary history of Aplacophora and reveal a surprising degree of morphological plasticity within the group.
title: Measuring Social Skills Via Multiple Mini ‘Interviews’ – Empirical Results and Implications
Creators: name: Hater, Leonie
name: Breil, Simon
name: Hertel, Anike
name: Ahrens, Helmut
name: Marschall, Bernhard
name: Back, Mitja
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: One popular procedure in the medical student selection process are multiple mini interviews (MMIs), which are designed to assess social skills (e.g., empathy, assertiveness) by means of brief interview and role-play stations. However, it remains unclear whether MMIs reliably measure desired social skills[for full text, please go to the a.m. URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
title: Psychische Belastung, spezifische Stressoren und Resilienzfaktoren von Studieninteressenten der Humanmedizin
Creators: name: Erschens, Rebecca
name: Herrmann-Werner, Anne
name: Loda, Teresa
name: Wosnik, Annette
name: Zipfel, Stephan
name: Junne, Florian
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Die Beforschung von psychischer Belastung und die damit verbundenen Stressoren und Resilienzfaktoren und abgeleiteten Implikationen für die medizinische Aus- und Weiterbildung bei Studierenden der Humanmedizin und Ärzten ist seit vielen Jahren Gegenstand der internationalen Forschung[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
title: Science Plan 2012 of the Environmental Mapping and Analysis Program (EnMAP)
Creators: name: Kaufmann, Hermann
name: Förster, S.
name: Wulf, Hendrik
name: Segl, K.
name: Guanter, Luis
name: Bochow, M.
name: Heiden, U.
name: Müller, A.
name: Heldens, W.
name: Schneiderhan, T.
name: Leitão, P.J.
name: Van Der Linden, S.
name: Hostert, P.
name: Hill, J.
name: Buddenbaum, H.
name: Mauser, W.
name: Hank, T.
name: Krasemann, H.
name: Röttgers, R.
name: Oppelt, N.
name: Heim, B.
name: EnMAP Consortium
Publisher: name: GFZ Data Services
Year: 2012

description: EnMAP Technical Report
title: Validierung des Auswahlverfahrens an der medizinischen Fakultät Oldenburg
Creators: name: Gehlhar, Kirsten
name: Gronewold, Sabine
name: Wessel, Verena
name: Dilger, Elise Marie
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Seit Fakultätsgründung in Oldenburg 2012 erfolgt die Studierendenauswahl im Rahmen des hochschuleigenen Auswahlverfahrens (AdH) mit Hilfe von sog. Multiple Mini Interviews (MMI, [ref:1]). In jedem Verfahren durchlaufen die Bewerber_innen insgesamt 7 Stationen, die[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
Additional file 1 of Surgical outcomes after reoperation for patients with recurrent presacral tumors: a retrospective study
Creators: name: Li, Rui
name: Yu, Zhiyuan
name: Ye, Jiahu
name: Liu, Xin
name: Li, Peiyu
name: Zhao, Xudong
Publisher: name: figshare
Year: 2024
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Additional file 1: Supplement Table S1. The follow-up checklist for patients with recurrent presacral tumors after the surgical procedure.
Supplementary Figure 5 from Phylogenomics of Aplacophora (Mollusca, Aculifera) and a solenogaster without a foot
Creators: name: Kocot, Kevin M.
name: Todt, Christiane
name: Mikkelsen, Nina T.
name: Halanych, Kenneth M.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 60301 Animal Systematics and Taxonomy
subject: FOS: Biological sciences
subject: 60310 Plant Systematics and Taxonomy

description: Recent molecular phylogenetic investigations strongly supported the placement of the shell-less, worm-shaped aplacophoran molluscs (Solenogastres and Caudofoveata) and chitons (Polyplacophora) in a clade called Aculifera, which is the sister taxon of all other molluscs. Thus, understanding the evolutionary history of aculiferan molluscs is important for understanding early molluscan evolution. In particular, fundamental questions about evolutionary relationships within Aplacophora have long been unanswered. Here, we supplemented the paucity of available data with transcriptomes from 25 aculiferans and conducted phylogenomic analyses on datasets with up to 525 genes and 75 914 amino acid positions. Our results indicate that aplacophoran taxonomy requires revision as several traditionally recognized groups are non-monophyletic. Most notably, Cavibelonia, the solenogaster taxon defined by hollow sclerites, is polyphyletic, suggesting parallel evolution of hollow sclerites in multiple lineages. Moreover, we describe Apodomenia enigmatica sp. nov., a bizarre new species that appears to be a morphological intermediate between Solenogastres and Caudofoveata. This animal is not a missing link, however; molecular and morphological studies show that it is a derived solenogaster that lacks a foot, mantle cavity and radula. Taken together, these results shed light on the evolutionary history of Aplacophora and reveal a surprising degree of morphological plasticity within the group.
title: ÐÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ Ð¸ÑÐºÑÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑÐ° Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: The use of artificial intelligence in project management
Creators: name: Ð¡ÑÑÐ¾ÐµÐ²Ð°, ÐÐ»ÑÐ³Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸
Ð¸ÑÐºÑÑÑÑÐ²ÐµÐ½Ð½ÑÐ¹ Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑ
Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½ÑÐµ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸
Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ ÑÐµÑÑÑÑÐ¾Ð²
Ð¿ÑÐ¾Ð³Ð½Ð¾Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð¸Ð½Ð½Ð¾Ð²Ð°ÑÐ¸Ð¸
project management
artificial intelligence
information technology
optimization of resource allocation
forecasting
innovation

description: Ð¦ÐµÐ»Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ - Ð¸Ð·ÑÑÐµÐ½Ð¸Ðµ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐ¸ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÐÐ Ð² ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð°ÑÐ¿ÐµÐºÑÐ°Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸. ÐÑÐ»Ð¸ ÑÐµÑÐµÐ½Ñ ÑÐ»ÐµÐ´ÑÑÑÐ¸Ðµ Ð·Ð°Ð´Ð°ÑÐ¸: 1. ÐÐ·ÑÑÐ¸ÑÑ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ðµ Ð¿Ð¾Ð´ÑÐ¾Ð´Ñ Ðº Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ ÐÐ Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸. 2. ÐÑÐ¾Ð²ÐµÑÑÐ¸ Ð°Ð½Ð°Ð»Ð¸Ð· Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐµÐ¹ Ð¸ Ð¾Ð³ÑÐ°Ð½Ð¸ÑÐµÐ½Ð¸Ð¹ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ ÐÐ. 3. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°ÑÑ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ Ð²Ð½ÐµÐ´ÑÐµÐ½Ð¸Ñ Ð¸ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÐÐ-ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¹ Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð¼ ÑÐ°Ð±Ð¾ÑÑ ÑÑÐ°Ð»Ð¾ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ðµ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ° Ð¼ÐµÑÐ¾Ð´Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¹ Ð¿Ð¾ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¸ÑÐºÑÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑÐ° Ð² ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ°Ð¼Ð¸.
description: The purpose of the study is to explore the possibility of using AI in various aspects of project management. The following tasks were solved: 1. To explore existing approaches to the use of AI in project management. 2. To analyze the possibilities and limitations of using AI. 3. Develop recommendations for the introduction and use of AI technologies in project management. The result of the work was the creation of a set of methodological recommendations on the use of artificial intelligence in project management.
Supplementary Figure 4 from Phylogenomics of Aplacophora (Mollusca, Aculifera) and a solenogaster without a foot
Creators: name: Kocot, Kevin M.
name: Todt, Christiane
name: Mikkelsen, Nina T.
name: Halanych, Kenneth M.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 60301 Animal Systematics and Taxonomy
subject: FOS: Biological sciences
subject: 60310 Plant Systematics and Taxonomy

description: Recent molecular phylogenetic investigations strongly supported the placement of the shell-less, worm-shaped aplacophoran molluscs (Solenogastres and Caudofoveata) and chitons (Polyplacophora) in a clade called Aculifera, which is the sister taxon of all other molluscs. Thus, understanding the evolutionary history of aculiferan molluscs is important for understanding early molluscan evolution. In particular, fundamental questions about evolutionary relationships within Aplacophora have long been unanswered. Here, we supplemented the paucity of available data with transcriptomes from 25 aculiferans and conducted phylogenomic analyses on datasets with up to 525 genes and 75 914 amino acid positions. Our results indicate that aplacophoran taxonomy requires revision as several traditionally recognized groups are non-monophyletic. Most notably, Cavibelonia, the solenogaster taxon defined by hollow sclerites, is polyphyletic, suggesting parallel evolution of hollow sclerites in multiple lineages. Moreover, we describe Apodomenia enigmatica sp. nov., a bizarre new species that appears to be a morphological intermediate between Solenogastres and Caudofoveata. This animal is not a missing link, however; molecular and morphological studies show that it is a derived solenogaster that lacks a foot, mantle cavity and radula. Taken together, these results shed light on the evolutionary history of Aplacophora and reveal a surprising degree of morphological plasticity within the group.
Retrofit Control with Approximate Environment Modeling
Creators: name: Ishizaki, Takayuki
name: Kawaguchi, Takahiro
name: Sasahara, Hampei
name: Imura, Jun-ichi
Publisher: name: arXiv
Year: 2018
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: In this paper, we develop a retrofit control method with approximate environment modeling. Retrofit control is a modular control approach for a general stable network system whose subsystems are supposed to be managed by their corresponding subsystem operators. From the standpoint of a single subsystem operator who performs the design of a retrofit controller, the subsystems managed by all other operators can be regarded as an environment, the complete system model of which is assumed not to be available. The proposed retrofit control with approximate environment modeling has an advantage that the stability of the resultant control system is robustly assured regardless of not only the stability of approximate environment models, but also the magnitude of modeling errors, provided that the network system before implementing retrofit control is originally stable. This robustness property is practically significant to incorporate existing identification methods of unknown environments, because the accuracy of identified models may neither be reliable nor assurable in reality. Furthermore, we conduct a control performance analysis to show that the resultant performance can be regulated by adjusting the accuracy of approximate environment modeling. The efficiency of the proposed retrofit control is shown by numerical experiments on a network of second-order oscillators.
Supplementary Figure 8 from Phylogenomics of Aplacophora (Mollusca, Aculifera) and a solenogaster without a foot
Creators: name: Kocot, Kevin M.
name: Todt, Christiane
name: Mikkelsen, Nina T.
name: Halanych, Kenneth M.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: 60301 Animal Systematics and Taxonomy
subject: FOS: Biological sciences
subject: 60310 Plant Systematics and Taxonomy

description: Recent molecular phylogenetic investigations strongly supported the placement of the shell-less, worm-shaped aplacophoran molluscs (Solenogastres and Caudofoveata) and chitons (Polyplacophora) in a clade called Aculifera, which is the sister taxon of all other molluscs. Thus, understanding the evolutionary history of aculiferan molluscs is important for understanding early molluscan evolution. In particular, fundamental questions about evolutionary relationships within Aplacophora have long been unanswered. Here, we supplemented the paucity of available data with transcriptomes from 25 aculiferans and conducted phylogenomic analyses on datasets with up to 525 genes and 75 914 amino acid positions. Our results indicate that aplacophoran taxonomy requires revision as several traditionally recognized groups are non-monophyletic. Most notably, Cavibelonia, the solenogaster taxon defined by hollow sclerites, is polyphyletic, suggesting parallel evolution of hollow sclerites in multiple lineages. Moreover, we describe Apodomenia enigmatica sp. nov., a bizarre new species that appears to be a morphological intermediate between Solenogastres and Caudofoveata. This animal is not a missing link, however; molecular and morphological studies show that it is a derived solenogaster that lacks a foot, mantle cavity and radula. Taken together, these results shed light on the evolutionary history of Aplacophora and reveal a surprising degree of morphological plasticity within the group.
title: Der Zusammenhang zwischen sozialen Kompetenzen im Auswahlverfahren und simulierten Patientengesprächen
Creators: name: Meisner, Sarah
name: Hänsel, Mike
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Seit dem Urteil des Bundesverfassungsgerichtes [[link:https://www.bundesverfassungsgericht.de/SharedDocs/Entscheidungen/DE/2017/12/ls20171219_1bvl000314.html*https://www.bundesverfassungsgericht.de/SharedDocs/Entscheidungen/DE/2017/12/ls20171219_1bvl000314.html]],[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
title: Medizinisches Fachwissen und Zusammenarbeit prognostizieren die Fähigkeit der klinischen Entscheidungsfindung bei Medizinstudierenden
Creators: name: Fürstenberg, Sophie
name: Oubaid, Viktor
name: Berberat, Pascal Oliver
name: Kadmon, Martina
name: Harendza, Sigrid
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung: Die klinische Entscheidungsfindung bezieht sich auf Denkprozesse, die sowohl medizinisches Problemlösen und als auch eine medizinische Entscheidungskompetenz beinhalten. In mehreren Studien wurde gezeigt, dass der klinische Entscheidungsfindungsprozess durch eine Reihe von Faktoren[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
title: Wird gelehrt, was gelehrt werden soll? Nutzen des Mappings für die Curriculumentwicklung
Creators: name: Lommer-Steinhoff, Svenja
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Nach der Verabschiedung des Nationalen Kompetenzbasierten Lernzielkatalogs Medizin (NKLM) sind die medizinischen Fakultäten in Deutschland angefragt, ihre spezifischen Curricula in Anlehnung an den NKLM aktiv weiterzuentwickeln, die Praktikabilität des NKLM zu prüfen und [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
MPEC 2025-D37 : 2025 DU
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 DU

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
A Magnetically Torqued Disk Model for Be Stars
Creators: name: Cassinelli, J. P.
name: Brown, J. C.
name: Maheswaran, M.
name: Miller, N. A.
name: Telfer, D. C.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Despite extensive study, the mechanisms by which Be star disks acquire high densities and angular momentum while displaying variability on many time scales are still far from clear. In this paper, we discuss how magnetic torquing may help explain disk formation with the observed quasi-Keplerian (as opposed to expanding) velocity structure and their variability. We focus on the effects of the rapid rotation of Be stars, considering the regime where centrifugal forces provide the dominant radial support of the disk material. Using a kinematic description of the angular velocity, vphi(r), in the disk and a parametric model of an aligned field with a strength B(r) we develop analytic expressions for the disk properties that allow us to estimate the stellar surface field strength necessary to create such a disk for a range of stars on the main-sequence. The model explains why disks are most common for main-sequence stars at about spectral class B2 V. The earlier type stars with very fast and high density winds would require unacceptably strong surface fields (> 10^3 Gauss) to form torqued disks, while the late B stars (with their low mass loss rates) tend to form disks that produce only small fluxes in the dominant Be diagnostics. For stars at B2 V the average surface field required is about 300 Gauss. The predicted disks provide an intrinsic polarization and a flux at Halpha comparable to observations. We also discuss whether the effect on field containment of the time dependent accumulation of matter in the flux tubes/disk can help explain some of the observed variability of Be star disks.
description: ApJ, in press. 46 pages, 12 figures
On a Métis Trapline in Northern Alberta
Creators: name: Van Zoost, Steven
Publisher: name: Nova Scotia Teachers Union
Year: 2010
Subjects: Education

description: This is the Version of Record (VoR); So there I was on a Métis trapline in northern Alberta with my Grade 12 English class. Tommy, our 58 year old host, was an ideal grandfather figure. “You
don’t have to have snowpants to have fun!” he exclaimed.
title: Kompetenzbasierte Ausbildung im Blockpraktikum Allgemeinmedizin: Ein multizentrischer Vergleich
Creators: name: Afshar, Kambiz
name: Joos, Stefanie
name: Koch, Roland
name: Niebling, Wilhelm
name: Böhme, Klaus
name: Bleidorn, Jutta
name: Schneider, Nils
name: Steffens, Sandra
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Seit 2015 liegen mit dem Nationalen Kompetenzbasierten Lernzielkatalog Medizin (NKLM) [ref:1] Empfehlungen für die kompetenzorientierte Gestaltung des Medizinstudiums vor. Ziel dieser Arbeit war das Curriculum-Mapping im Blockpraktikum Allgemeinmedizin entlang des NKLM an [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
ПРАКТИЧЕСКАЯ РЕАЛИЗАЦИЯ МЕТОДИКИ ИСПОЛЬЗОВАНИЯ СТИХОТВОРЕНИЙ В ОБУЧЕНИИ ФРАНЦУЗСКОМУ ЯЗЫКУ
Creators: name: Азамжонова Сарвиноз Шухратовна Студентка 2 курса Узбекского государственного университета мировых языков Ташкент, Узбекистан
Publisher: name: Zenodo
Year: 2025

description: Целью данной статьи было теоретически обосновать, апробировать и доказать эффективность продуктивного использования поэтических и музыкальных произведений при обучении французскому языку как средства развития социокультурной компетенции обучающихся.

Ключевые слова: фонетические навыки, стихотворение, чтение, устная речь, аудирование.
title: Intrinsische Arztrollen im Fokus – ein standortübergreifender Mapping-Ansatz zur Bestimmung des Status Quo der curricularen Integration intrinsischer Rollen
Creators: name: Griewatz, Jan
name: Rothdiener, Miriam
name: Lammerding-Köppel, Maria
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: International wird die medizinische Ausbildung zunehmend an kompetenzorientierten Rahmencurricula ausgerichtet mit einem strukturgebenden Rollenkonzept [ref:1], [ref:2]. Auch der NKLM definiert Rollen, die die medizinische Expertise um relevante Facetten ergänzen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Gemeinsame Jahrestagung der Gesellschaft für Medizinische Ausbildung (GMA), des Arbeitskreises zur Weiterentwicklung der Lehre in der Zahnmedizin (AKWLZ) und der Chirurgischen Arbeitsgemeinschaft Lehre (CAL)
Quantum critical exponents of a planar antiferromagne
Creators: name: Troyer, Matthias
name: Imada, Masatoshi
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present high precision estimates of the exponents of a quantum phase transition in a planar antiferromagnet. This has been made possible by the recent development of cluster algorithms for quantum spin systems, the loop algorithms. Our results support the conjecture that the quantum Heisenberg antiferromagnet is in the same universality class as the O(3) nonlinear sigma model. The Berry phase in the Heisenbrg antiferromagnet do not seem to be relevant for the critical behavior.
description: 13 pages, extended version of cond-mat/9702077
Bet-hedging strategies in expanding populations
Creators: name: Martín, Paula Villa
name: Muñoz, Miguel A.
name: Pigolotti, Simone
Publisher: name: arXiv
Year: 2018
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: In ecology, species can mitigate their extinction risks in uncertain environments by diversifying individual phenotypes. This observation is quantified by the theory of bet-hedging, which provides a reason for the degree of phenotypic diversity observed even in clonal populations. The theory of bet-hedging in well-mixed populations is rather well developed. However, many species underwent range expansions during their evolutionary history, and the importance of phenotypic diversity in such scenarios still needs to be understood. In this paper, we develop a theory of bet-hedging for populations colonizing new, unknown environments that fluctuate either in space or time. In this case, we find that bet-hedging is a more favorable strategy than in well-mixed populations. For slow rates of variation, temporal and spatial fluctuations lead to different outcomes. In spatially fluctuating environments, bet-hedging is favored compared to temporally fluctuating environments. In the limit of frequent environmental variation, no opportunity for bet-hedging exists, regardless of the nature of the environmental fluctuations. For the same model, bet-hedging is never an advantageous strategy in the well-mixed case, supporting the view that range expansions strongly promote diversification. These conclusions are robust against stochasticity induced by finite population sizes. Our findings shed light on the importance of phenotypic heterogeneity in range expansions, paving the way to novel approaches to understand how biodiversity emerges and is maintained.
The incorporation of matter into characteristic numerical relativity
Creators: name: Bishop, N. T.
name: Gomez, R.
name: Lehner, L.
name: Maharaj, M.
name: Winicour, J.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A code that implements Einstein equations in the characteristic formulation in 3D has been developed and thoroughly tested for the vacuum case. Here, we describe how to incorporate matter, in the form of a perfect fluid, into the code. The extended code has been written and validated in a number of cases. It is stable and capable of contributing towards an understanding of a number of problems in black hole astrophysics.
description: 15 pages + 4 (eps) figures
Fractal stabilization of Wannier-Stark resonances
Creators: name: Glueck, M.
name: Kolovsky, A. R.
name: Korsch, H. J.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The quasienergy spectrum of a Bloch electron affected by dc-ac fields is known to be a fractal function of the so-called electric matching ratio which is the ratio of the ac field frequency and the Bloch frequency. This paper studies a manifestation of the fractal spectrum in the system atom in a standing laser wave, which is a quantum optical realization of a Bloch electron. It is shown that for an appropriate choice of the system parameters the atomic survival probability (a quantity measured in laboratory experiments) develops a fractal structure as a function of the electric matching ratio. Numerical simulations under classically chaotic scattering conditions show good agreement with theoretical predictions based on random matrix theory.
description: 6 pages, 3 Postscript figures, Europhysics Letter (in press)
On The Determination of MDI High-Degree Mode Frequencies
Creators: name: Korzennik, S. G.
name: Rabello-Soares, M. C.
name: Schou, J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The characteristic of the solar acoustic spectrum is such that mode lifetimes get shorter and spatial leaks get closer in frequency as the degree of a mode increases for a given order. A direct consequence of this property is that individual p-modes are only resolved at low and intermediate degrees, and that at high degrees, individual modes blend into ridges. Once modes have blended into ridges, the power distribution of the ridge defines the ridge central frequency and it will mask the true underlying mode frequency. An accurate model of the amplitude of the peaks that contribute to the ridge power distribution is needed to recover the underlying mode frequency from fitting the ridge. We present the results of fitting high degree power ridges (up to l = 900) computed from several two to three-month-long time-series of full-disk observations taken with the Michelson Doppler Imager (MDI) on-board the Solar and Heliospheric Observatory between 1996 and 1999. We also present a detailed discussion of the modeling of the ridge power distribution, and the contribution of the various observational and instrumental effects on the spatial leakage, in the context of the MDI instrument. We have constructed a physically motivated model (rather than some ad hoc correction scheme) resulting in a methodology that can produce an unbiased determination of high-degree modes, once the instrumental characteristics are well understood. Finally, we present changes in high degree mode parameters with epoch and thus solar activity level and discuss their significance.
description: 59 pages, 38 figures -- High-resolution version at http://www-sgk.harvard.edu:1080/~sylvain/preprints/ -- Manuscript submitted to ApJ