bluuebunny/crossref_metadata_2025_split huggingface dataset:
Kulturbetrieb als Schlangengrube? – Kulturpolitische Steuerung de facto und de jure anhand der ‚Causa Binder‘
Authors: Hartung Ulrike 
Published: March 2021

ZusammenfassungKulturpolitische Steuerung im Kontext öffentlich getragener Theater in Deutschland findet überwiegend im Verborgenen statt. Findungsprozesse, in denen folgenreiche Entscheidungen wie Besetzungsverfahren verhandelt werden, sind außerhalb der Entscheidungsgremien selbst nur schwer nachzuvollziehen. Diese Intransparenz scheint jedoch immer erst dann die Aufmerksamkeit der Öffentlichkeit auf sich zu ziehen, wenn die Dysfunktionalität eines solchen Prozesses in öffentlicher Weise, wie z. B. in Form eines Rechtsstreits beteiligter Akteure augenscheinlich wird. Es handelt sich dabei nicht um ein spartenspezifisches Problem, sondern betrifft das Schauspiel ebenso wie die Oper und das Tanztheater, wie anhand konkreter Fälle exemplifiziert werden soll. Die ‚Causa Binder‘, wie der öffentliche Diskurs die Rechtsstreitigkeiten um Adolphe Binders Position als Intendantin des Tanztheaters Wuppertal übertitelt, ist ein besonders eindrucksvolles Beispiel für das Spannungsverhältnis zwischen kulturpolitischer Steuerung de jure und ihrer faktischen Umsetzung in institutioneller Praxis.
Das öffentlich geförderte Theater in der Legitimationskrise und unter Innovationsdruck? Ergebnisse einer repräsentativen Bevölkerungsbefragung
Authors: Mandel Birgit 
Published: March 2021

ZusammenfassungDie Stadt- und Staatstheater als die am höchsten geförderten Kultureinrichtungen in Deutschland stehen in besonderer Weise unter Legitimationsdruck und benötigen ausreichend Rückhalt bei relevanten Stakeholdern, bei Publikum und in der Bevölkerung. Welches Interesse an Theatern und welche Einstellungen zu deren Aufgaben und deren öffentlicher Förderung gibt es in der Bevölkerung in Deutschland? Der Artikel präsentiert und diskutiert die Ergebnisse einer repräsentativen Bevölkerungsbefragung, die zeigt, dass zwar nur wenige zu den regelmäßigen Besucher*innen von Theatern gehören – darunter eher hoch gebildete, eher ältere und eher weibliche Personen – eine große Bevölkerungsmehrheit sich jedoch für eine weiterhin hohe öffentliche Förderung ausspricht. Von den Theatern werden vor allem eine hohe Zugänglichkeit sowie Programme kultureller Bildung für Kinder und Jugendliche erwartet. Die hohe Zustimmung zur Theaterförderung, weit über den Kreis des Publikums hinaus, verweist auf die hohe gesellschaftliche Bedeutung, die den Theatern zugeschrieben wird. Zugleich deuten sich erste Risse dieses positiven Theaterbildes bei den jüngeren Generationen an.
Theaterpolitik als Kulturpolitik
Authors: Fuchs Max 
Published: March 2021

ZusammenfassungTheaterpolitik ist ein Teil der Kulturpolitik. Das heißt, dass man Strukturmerkmale der Kulturpolitik auf die Theaterpolitik übertragen kann. Das gilt insbesondere für den Governance-Ansatz. Hierbei geht es darum, dass man die verschiedensten Akteure bei der Politikgestaltung – und dies auf den unterschiedlichen Ebenen (Kommune, Land, Bund, Europäische Union, UNESCO) und in den unterschiedlichen Politikfeldern (neben Kulturpolitik sind es Rechtspolitik, Sozialpolitik, Wirtschaftspolitik, Kommunalpolitik etc.) – unterscheiden kann. Selbst eine grobe Sichtung dieser Vielfalt an Zugangsmöglichkeiten zeigt, dass man mit sehr unterschiedlichen Verständnis- und Begründungsweisen von Kulturpolitik rechnen muss.
Krisendiskurse in der Freien Theaterszene (Berlin): Kunst als soziales Wirksamkeitsversprechen im Spannungsfeld zwischen kulturpolitischer Steuerung und künstlerischer Selbstlegitimierung
Authors: Quickert Anja 
Published: March 2021

ZusammenfassungIn den vergangenen Jahren hat sich die Freie Theaterszene verstärkt mit Fragen der (Selbst-)Legitimierung ihrer künstlerischen Arbeit im Rahmen der strukturellen wie institutionellen Voraussetzungen auseinandergesetzt. Dabei wurde auch der moderne Autonomiebegriff der Kunst nachhaltig infrage gestellt zugunsten einer sozialen Wirksamkeit künstlerischer Praxis. Der folgende Beitrag bildet die diskursiven Positionen dieser künstlerischen Debatte ab, verortet sie in ihrem kunsthistorischen wie gesellschaftlichen Zusammenhang und fragt, welche Funktion die dazugehörigen Krisendiskurse für die (Selbst-)Legitimation der Freien Theaterszene im Kontext öffentlicher Kulturförderung besitzen.
Studie 3: Latente Berufswahlkompetenzprofile an weiterführenden allgemeinbildenden Schulen
Authors: Ohlemann Svenja 
Published: March 2021

ZusammenfassungAufgrund von externen Deadlines müssen Jugendliche am Ende ihrer Schulzeit erste berufswahlbezogene Entscheidungen treffen, während sie gleichzeitig verschiedene kognitive, körperliche und sozioemotionale Entwicklungsprozesse und Aufgaben zu bewältigen haben. Um eine informierte, proaktive Berufswahl treffen zu können, benötigen Jugendliche sowohl berufswahlrelevantes Wissen und Kompetenzen wie Selbstwissen, Kenntnisse der Arbeitswelt, Planungsfähigkeiten, Selbstvertrauen und Entschlossenheit, also auch die Motivation und den Willen zum Handeln.
Studie 4: Berufswahlkompetenzentwicklung an weiterführenden allgemeinbildenden Schulen: Eine latente Transitionsanalyse
Authors: Ohlemann Svenja 
Published: March 2021

ZusammenfassungIn Deutschland fühlen sich Schüler*innen an allgemeinbildenden Schulen auf dem Weg zum Abitur oftmals noch nicht ausreichend vorbereitet, um für ihre berufliche Zukunft konkrete Pläne zu entwickeln oder eine diesbezügliche Entscheidung zu treffen. In mehr als einem Viertel der Fälle fehlen ausreichende Informationen zu Studien- und Ausbildungsmöglichkeiten, um eine Entscheidung zu treffen, mit der sich die Heranwachsenden wohlfühlen.
Modelle differenzierter beruflicher Entwicklung
Authors: Ohlemann Svenja 
Published: March 2021

ZusammenfassungUm den Erkenntnisstand zu individuellen Bedarfen Jugendlicher in ihrer beruflichen Orientierung zu erweitern – eine wesentliche Intention dieser Arbeit –, bedarf es einer ausdifferenzierteren Betrachtung des Entwicklungsprozesses. In diesem Kapitel werden daher ausgewählte theoretische Modelle vorgestellt, die die berufliche Orientierung in differenzierbare Stadien bzw. Phasen unterteilen, um allgemeingültige Prozesse beruflicher Entwicklung abzubilden.
Berufswahlrelevante Ressourcen und Kompetenzen
Authors: Ohlemann Svenja 
Published: March 2021

ZusammenfassungIm vorangegangenen Kapitel 4 wurde anhand der erläuterten Modelle deutlich, dass Jugendliche zur erfolgreichen Bewältigung phasentypischer, berufswahlbezogener Aufgaben berufswahlrelevante Kompetenzen benötigen.
Methodisches Vorgehen
Authors: Ohlemann Svenja 
Published: March 2021

ZusammenfassungDie vorliegende Arbeit nutzt Daten aus drei Forschungsprojekten und verbindet in der Untersuchung individueller Bedarfe und beruflicher Entwicklung querschnittliche und längsschnittliche Analysedesigns miteinander. Im Folgenden sollen die drei Forschungsprojekte mit den jeweiligen Zielen kurz vorgestellt werden. Tabelle 8.1 gibt einen Überblick über die vier in dieser Arbeit vorgestellten empirischen Studien, ihre Datengrundlagen, die jeweiligen Stichprobengrößen und -zusammensetzungen, sowie der Publikationsstatus.
Subcriticality
Authors: Hashimoto Kengo 
Published: March 2021

AbstractFor a subcritical reactor system driven by a periodically pulsed spallation neutron source in KUCA, the Feynman-α and the Rossi-α neutron correlation analyses are conducted to determine the prompt neutron decay constant and quantitatively to confirm a non-Poisson character of the neutron source. The decay constant determined from the present Feynman-α analysis well agrees with that from a previous analysis for the same subcritical system driven by an inherent source. Considering the effect of a higher mode excited, the disagreement can be successfully resolved. The power spectral analysis on frequency domain is also carried out. Not only the cross-power but also the auto-power spectral density have a considerable correlated component even at a deeply subcritical state, where no correlated component could be previously observed under a 14 MeV neutron source. The indicator of the non-Poisson character of the present spallation source can be obtained from the spectral analysis and is consistent with that from the Rossi-α analysis. An experimental technique based on an accelerator-beam trip or restart operation is proposed to determine the subcritical reactivity of ADS. Applying the least-squares inverse kinetics method to the data analysis, the subcriticality can be inferred from time-sequence neutron count data after these operations.
Searching for gauge theories with the conformal bootstrap
Authors: Li Zhijin , Poland David 
Published: March 2021

Abstract
Infrared fixed points of gauge theories provide intriguing targets for the modern conformal bootstrap program. In this work we provide some preliminary evidence that a family of gauged fermionic CFTs saturate bootstrap bounds and can potentially be solved with the conformal bootstrap. We start by considering the bootstrap for SO(N) vector 4-point functions in general dimension D. In the large N limit, upper bounds on the scaling dimensions of the lowest SO(N) singlet and traceless symmetric scalars interpolate between two solutions at ∆ = D/2 − 1 and ∆ = D − 1 via generalized free field theory. In 3D the critical O(N) vector models are known to saturate the bootstrap bounds and correspond to the kinks approaching ∆ = 1/2 at large N. We show that the bootstrap bounds also admit another infinite family of kinks $$ {\mathcal{T}}_D $$

T
D

, which at large N approach solutions containing free fermion bilinears at ∆ = D − 1 from below. The kinks $$ {\mathcal{T}}_D $$

T
D

appear in general dimensions with a D-dependent critical N* below which the kink disappears. We also study relations between the bounds obtained from the bootstrap with SO(N) vectors, SU(N) fundamentals, and SU(N) × SU(N) bi-fundamentals. We provide a proof for the coincidence between bootstrap bounds with different global symmetries. We show evidence that the proper symmetries of the underlying theories of $$ {\mathcal{T}}_D $$

T
D

are subgroups of SO(N), and we speculate that the kinks $$ {\mathcal{T}}_D $$

T
D

relate to the fixed points of gauge theories coupled to fermions.
Kinetic mixing, dark photons and extra dimensions. Part III. Brane localized dark matter
Authors: Rizzo Thomas G. , Wojcik George N. 
Published: March 2021

Abstract
Extra dimensions have proven to be a very useful tool in constructing new physics models. In earlier work, we began investigating toy models for the 5-D analog of the kinetic mixing/vector portal scenario where the interactions of dark matter, taken to be, e.g., a complex scalar, with the brane-localized fields of the Standard Model (SM) are mediated by a massive U(1)D dark photon living in the bulk. These models were shown to have many novel features differentiating them from their 4-D analogs and which, in several cases, avoided some well-known 4-D model building constraints. However, these gains were obtained at the cost of the introduction of a fair amount of model complexity, e.g., dark matter Kaluza-Klein excitations. In the present paper, we consider an alternative setup wherein the dark matter and the dark Higgs, responsible for U(1)D breaking, are both localized to the ‘dark’ brane at the opposite end of the 5-D interval from where the SM fields are located with only the dark photon now being a 5-D field. The phenomenology of such a setup is explored for both flat and warped extra dimensions and compared to the previous more complex models.
Partition functions of the tensionless string
Authors: Eberhardt Lorenz 
Published: March 2021

Abstract
We consider string theory on AdS3× S3× 𝕋4 in the tensionless limit, with one unit of NS-NS flux. This theory is conjectured to describe the symmetric product orbifold CFT. We consider the string on different Euclidean backgrounds such as thermal AdS3, the BTZ black hole, conical defects and wormhole geometries. In simple examples we compute the full string partition function. We find it to be independent of the precise bulk geometry, but only dependent on the geometry of the conformal boundary. For example, the string partition function on thermal AdS3 and the conical defect with a torus boundary is shown to agree, thus giving evidence for the equivalence of the tensionless string on these different background geometries. We also find that thermal AdS3 and the BTZ black hole are dual descriptions and the vacuum of the BTZ black hole is mapped to a single long string winding many times asymptotically around thermal AdS3. Thus the system yields a concrete example of the string-black hole transition. Consequently, reproducing the boundary partition function does not require a sum over bulk geometries, but rather agrees with the string partition function on any bulk geometry with the appropriate boundary. We argue that the same mechanism can lead to a resolution of the factorization problem when geometries with disconnected boundaries are considered, since the connected and disconnected geometries give the same contribution and we do not have to include them separately.
Leptonic sum rules from flavour models with modular symmetries
Authors: Gehrlein J. , Spinrath M. 
Published: March 2021

Abstract
Sum rules in the lepton sector provide an extremely valuable tool to classify flavour models in terms of relations between neutrino masses and mixing parameters testable in a plethora of experiments. In this manuscript we identify new leptonic sum rules arising in models with modular symmetries with residual symmetries. These models simultaneously present neutrino mass sum rules, involving masses and Majorana phases, and mixing sum rules, connecting the mixing angles and the Dirac CP-violating phase. The simultaneous appearance of both types of sum rules leads to some non-trivial interplay, for instance, the allowed absolute neutrino mass scale exhibits a dependence on the Dirac CP-violating phase. We derive analytical expressions for these novel sum rules and present their allowed parameter ranges as well as their predictions at upcoming neutrino experiments.
Generalised superconformal higher-spin multiplets
Authors: Kuzenko Sergei M. , Ponds Michael , Raptakis Emmanouil S. N. 
Published: March 2021

Abstract
We propose generalised $$ \mathcal{N} $$
N
= 1 superconformal higher-spin (SCHS) gauge multiplets of depth t, $$ {\Upsilon}_{\alpha (n)\overset{\cdot }{\alpha }(m)}^{(t)} $$

ϒ

α

n

α
⋅

m

t

, with n ≥ m ≥ 1. At the component level, for t > 2 they contain generalised conformal higher-spin (CHS) gauge fields with depths t − 1, t and t + 1. The supermultiplets with t = 1 and t = 2 include both ordinary and generalised CHS gauge fields. Super-Weyl and gauge invariant actions describing the dynamics of $$ {\Upsilon}_{\alpha (n)\overset{\cdot }{\alpha }(m)}^{(t)} $$

ϒ

α

n

α
⋅

m

t

on conformally-flat superspace backgrounds are then derived. For the case n = m = t = 1, corresponding to the maximal-depth conformal graviton supermultiplet, we extend this action to Bach-flat backgrounds. Models for superconformal non-gauge multiplets, which are expected to play an important role in the Bach-flat completions of the models for $$ {\Upsilon}_{\alpha (n)\overset{\cdot }{\alpha }(m)}^{(t)} $$

ϒ

α

n

α
⋅

m

t

, are also provided. Finally we show that, on Bach-flat backgrounds, requiring gauge and Weyl invariance does not always determine a model for a CHS field uniquely.
Dimensional reduction of higher-point conformal blocks
Authors: Hoback Sarah , Parikh Sarthak 
Published: March 2021

AbstractRecently, with the help of Parisi-Sourlas supersymmetry an intriguing relation was found expressing the four-point scalar conformal block of a (d −2)-dimensional CFT in terms of a five-term linear combination of blocks of ad-dimensional CFT, with constant coefficients. We extend this dimensional reduction relation to all higher-point scalar conformal blocks of arbitrary topology restricted to scalar exchanges. We show that the constant coefficients appearing in the finite term higher-point dimensional reduction obey an interesting factorization property allowing them to be determined in terms of certain graphical Feynman-like rules and the associated finite set of vertex and edge factors. Notably, these rules can be fully determined by considering the explicit power-series representation of just three particular conformal blocks: the four-point block, the five-point block and the six-point block of the so-called OPE/snowflake topology. In principle, this method can be applied to obtain the arbitrary-point dimensional reduction of conformal blocks with spinning exchanges as well. We also show how to systematically extend the dimensional reduction relation of conformal partial waves to higher-points.
Powder-based laser hybrid additive manufacturing of metals: a review
Authors: Jiménez Amaia , Bidare Prveen , Hassanin Hany , Tarlochan Faris , Dimov Stefan , Essa Khamis 
Published: March 2021

AbstractRecent advances in additive manufacturing (AM) have attracted significant industrial interest. Initially, AM was mainly associated with the fabrication of prototypes, but the AM advances together with the broadening range of available materials, especially for producing metallic parts, have broaden the application areas and now the technology can be used for manufacturing functional parts, too. Especially, the AM technologies enable the creation of complex and topologically optimised geometries with internal cavities that were impossible to produce with traditional manufacturing processes. However, the tight geometrical tolerances along with the strict surface integrity requirements in aerospace, biomedical and automotive industries are not achievable in most cases with standalone AM technologies. Therefore, AM parts need extensive post-processing to ensure that their surface and dimensional requirements together with their respective mechanical properties are met. In this context, it is not surprising that the integration of AM with post-processing technologies into single and multi set-up processing solutions, commonly referred to as hybrid AM, has emerged as a very attractive proposition for industry while attracting a significant R&D interest. This paper reviews the current research and technology advances associated with the hybrid AM solutions. The special focus is on hybrid AM solutions that combine the capabilities of laser-based AM for processing powders with the necessary post-process technologies for producing metal parts with required accuracy, surface integrity and material properties. Commercially available hybrid AM systems that integrate laser-based AM with post-processing technologies are also reviewed together with their key application areas. Finally, the main challenges and open issues in broadening the industrial use of hybrid AM solutions are discussed.
Longitudinal changes in telomere length in PCB-exposed individuals: interaction with CMV infection
Authors: Beier Fabian , Esser Andre , Vankann Lucia , Abels Anne , Schettgen Thomas , Kraus Thomas , Brümmendorf Tim H. , Ziegler Patrick 
Published: March 2021

AbstractWe recently demonstrated a significant shortening of age-adapted telomere length (TL) in lymphocytes of polychlorinated biphenyls (PCB)-exposed individuals. Here, we analyzed TL in individuals of the same PCB-exposed cohort during a 6-year follow-up period, investigating the change in TL between the first and second measurement as a function of time, concentration of PCBs and cytomegalovirus (CMV) infection. The age-adjusted TL of lymphocytes within the cohort of PCB-exposed individuals recovered from a first assessment in 2011 to a second assessment in 2017. Remarkably, if the concentration of lower chlorinated PCBs (LC PCBs) in 2011 was high (≥ 0.055 µg/L), the TL of CMV seropositive individuals remained significantly shortened both compared to age-adjusted controls as well as intra individually. This was confirmed by analysis of covariance as well as by multivariate linear mixed effects models. Since telomeres are responsive to various stress response pathways, including viral infection, we conclude that PCBs could contribute to immune senescence-like phenotypes associated with CMV infections and exacerbate negative aspects associated with the aging of the immune system.
Efficacy and safety of anti-PD-1-based therapy in combination with PARP inhibitors for patients with advanced solid tumors in a real-world setting
Authors: Wu Zhaozhen , Tao Haitao , Zhang Sujie , Wang Xiao , Ma Junxun , Li Ruixin , Liu Zhefeng , Wang Jinliang , Cui Pengfei , Chen Shixue , Di Huang , Huang Ziwei , Zheng Xuan , Hu Yi 
Published: March 2021

Abstract
Background
Rationale exists for combining immune checkpoint inhibitors and PARP inhibitors (PARPi), and results of clinical trials in ovarian cancer are promising, but data in other cancers are limited.

Method
Efficacy and safety of PARPi/anti-PD-1 in advanced solid tumors were retrospectively analyzed. The efficacy measures included objective response rate (ORR), disease control rate (DCR), progression-free survival (PFS) and overall survival (OS).

Results
This retrospective study included data from 40 patients. The ORR was 27.5% (95% CI, 13.0–42.0%), with a DCR of 85.0% (95% CI, 73.4–96.6%). Except four patients in first-line treatment (three with PR and one with SD), the ORR of ≥second-line treatment, non-small cell lung cancer (NSCLC) and small cell lung cancer (SCLC) was 22.2%, 23.1% and 28.6%, and the DCR was 83.3%, 84.6% and 71.4%, separately. The median PFS of all patients, ≥second-line treatment, NSCLC and SCLC was 4.6 m, 4.2 m, 4.5 m and 3.7 m. The median OS was 9.4 m, 11.4 m, 12.7 m and 5.4 m, respectively. Multivariable analysis revealed that BRCA1/2 mutation was positively correlated with ORR (P = 0.008), and LDH≥250U/L was negatively correlated with lowered DCR (P = 0.018), while lymphocyte number, ECOG and LDH significantly influenced both PFS and OS. We found that the possible resistant mechanisms were sarcomatous degeneration and secondary mutation, including BRCA2 truncation mutation, A2M, JAK1,T790M, KEAP1 and mTOR mutation. 37.5% patients had ≥grade 3 adverse events.

Conclusion
PARPi/anti-PD-1 is an effective and tolerable method for patients with advanced solid tumors, and BRCA1/2 is a potential biomarker.
Development of a Rapid Intraoperative Point‐of‐Care Method Using Tissue Suspension to Differentiate Parathyroid Tissue: A Possible Substitute for Frozen Sections
Authors: Kikumori Toyone , Shibata Masahiro , Takeuchi Dai 
Published: March 2021

AbstractBackgroundWe reported that aspartate aminotransferase (AST)/lactate dehydrogenase (LDH) ratio of a tissue suspension can precisely differentiate normal and hyperfunctioning parathyroid tissue (PT) from other tissues. However, in these studies, LDH and AST were measured using the standard method for blood samples, with a turnaround time of approximately 1 h, hampering clinical application. Here, we developed a rapid and robust method to differentiate PT instead of using frozen sections.MethodsExcised specimens from 28 patients (n = 69) who underwent thyroid or parathyroid surgery between October 2019 and April 2020 were analyzed. AST and LDH were measured in suspensions of PT or other tissues, using both the standard method in the in‐facility laboratory and a point‐of‐care testing device (NX500, Fujifilm, Japan).Results and conclusionsA good correlation was found between the standard method and NX500 for AST and LDH levels >10 IU/L. In the analyses using 52 specimens with ≥ 10 IU/L of both AST and LDH measured using the NX500, PT was distinguished with 100% sensitivity and specificity using an optimal cutoff AST/LDH ratio of 0.48. The turnaround time was estimated to be less than 10 min. This method could be a cost‐ and labor‐effective alternative to frozen sections to reduce the incidence of postoperative hypoparathyroidism and improve the outcome of primary hyperparathyroidism in low‐resource areas.