bluuebunny/crossref_metadata_2025_split huggingface dataset:
Integrating essential learning outcomes and electronic portfolios: Recommendations for assessment of student growth, course objectives, program outcomes, and accreditation standards
Authors: Sowers Kerri L. , Meyers Shelly 
Published: July 2021

AbstractStockton University is a mid‐size liberal arts institution in Southern New Jersey. Degree seekers must complete required course work in both liberal studies and core, specialized areas, such as business, health sciences, hospitality, education, social and behavioral sciences, or organizational leadership. Stockton emphasizes Essential Learning Outcomes (ELOs) in undergraduate programs, aligning them to course goals and program outcomes. Faculty implement ELOs in many courses, across disciplines, providing students with opportunities to generalize ELOs in different contexts, in meaningful and relevant ways. Electronic portfolios (ePortfolios) are used to give students opportunities to develop their own personal profiles and expand their goal setting practices, by choosing artifacts that most represent who they are as learners and who they will be as future employees. Students enrolled in the courses included in this case study were encouraged to maintain an electronic portfolio that facilitates skill acquisition of reflective thought, self‐assessment, authentic learning, self‐determination, critical thinking and problem solving in preparation to successfully participate in a 21st century global world. Together with ELOs, ePortfolios give students a means of promoting their value to a future employer. This paper explores multiple case studies through courses that have integrated ELOs and ePortfolios for the purpose of assessing student growth, course objectives, program outcomes, or accreditation assessment. The case studies highlight the use of ELOs merged with ePortfolios for: first‐year students and their involvement in campus and course activities to assess personal and academic growth; first‐year students and the development of their research and information literacy skills to assess academic growth and course objectives; upper level undergraduate students and reflective assessment of student growth and course outcomes; and graduate students and reflective assessment of student growth and evidence for documenting accreditation standards. Examples of how ELOs and ePortfolios can be merged for different disciplines, and different student levels, are explored in detail. Suggestions for additional opportunities to embed ELOs into ePortfolios are discussed and provided for faculty who are interested in the utilization of these merged concepts for the assessment of student growth, course objectives, program outcomes and accreditation standards.
Building preservice teacher's essential skill competencies through a situated learning approach
Authors: Cydis Susan , Haria Priti , Meyers Shelly 
Published: July 2021

AbstractThis study reports on the value of teaching preservice teachers in an authentic setting. Outcomes suggest that the situated learning setting was more effective to the acquisition of content and pedagogy and increasing essential skill competence than when courses are offered in a more traditional format of lecture and discussion.
Supercharged AdS3 Holography
Authors: Rawash Sami , Turton David 
Published: July 2021

Abstract
Given an asymptotically Anti-de Sitter supergravity solution, one can obtain a microscopic interpretation by identifying the corresponding state in the holographically dual conformal field theory. This is of particular importance for heavy pure states that are candidate black hole microstates. Expectation values of light operators in such heavy CFT states are encoded in the asymptotic expansion of the dual bulk configuration. In the D1-D5 system, large families of heavy pure CFT states have been proposed to be holographically dual to smooth horizonless supergravity solutions. We derive the precision holographic dictionary in a new sector of light operators that are superdescendants of scalar chiral primaries of dimension (1,1). These operators involve the action of the supercharges of the chiral algebra, and they play a central role in the proposed holographic description of recently-constructed supergravity solutions known as “supercharged superstrata”. We resolve the mixing of single-trace and multi-trace operators in the CFT to identify the combinations that are dual to single-particle states in the bulk. We identify the corresponding gauge-invariant combinations of supergravity fields. We use this expanded dictionary to probe the proposed holographic description of supercharged superstrata, finding precise agreement between gravity and CFT.
Twisted 6d (2, 0) SCFTs on a circle
Authors: Duan Zhihao , Lee Kimyeong , Nahmgoong June , Wang Xin 
Published: July 2021

Abstract
We study twisted circle compactification of 6d (2, 0) SCFTs to 5d $$ \mathcal{N} $$
N
= 2 supersymmetric gauge theories with non-simply-laced gauge groups. We provide two complementary approaches towards the BPS partition functions, reflecting the 5d and 6d point of view respectively. The first is based on the blowup equations for the instanton partition function, from which in particular we determine explicitly the one-instanton contribution for all simple Lie groups. The second is based on the modular bootstrap program, and we propose a novel modular ansatz for the twisted elliptic genera that transform under the congruence subgroups Γ0(N) of SL(2, ℤ). We conjecture a vanishing bound for the refined Gopakumar-Vafa invariants of the genus one fibered Calabi-Yau threefolds, upon which one can determine the twisted elliptic genera recursively. We use our results to obtain the 6d Cardy formulas and find universal behaviour for all simple Lie groups. In addition, the Cardy formulas remain invariant under the twist once the normalization of the compact circle is taken into account.
Corners of gravity: the case of gravity as a constrained BF theory
Authors: Durka Remigiusz , Kowalski-Glikman Jerzy 
Published: July 2021

Abstract
Following recent works on corner charges we investigate the boundary structure in the case of the theory of gravity formulated as a constrained BF theory. This allows us not only to introduce the cosmological constant, but also explore the influence of the topological terms present in the action of this theory. Established formulas for charges resemble previously obtained ones, but we show that they are affected by the presence of the cosmological constant and topological terms. As an example we discuss the charges in the case of the AdS-Schwarzschild solution and we find that the charges give correct values.
Rotating multi-charge spindles and their microstates
Authors: Hosseini Seyed Morteza , Hristov Kiril , Zaffaroni Alberto 
Published: July 2021

Abstract
Some AdS3 × M7 type IIB vacua have been recently proposed to arise from D3-branes wrapped on a spindle, a sphere with conical singularities at the poles. We explicitly construct a generalization of these solutions corresponding to a class of electrically charged and rotating supersymmetric black strings in AdS5 × S5 with general magnetic fluxes on the spindle. We then perform a counting of their microstates using the charged Cardy formula. To this purpose, we derive the general form of the anomaly polynomial of the dual $$ \mathcal{N} $$
N
= (0, 2) CFT in two dimensions and we show that it can be obtained via a simple gluing procedure.
Chiral separation effect for spin 3/2 fermions
Authors: Khaidukov Z. V. , Abramchuk R. A. 
Published: July 2021

Abstract
Chiral Separation Effect (CSE) for systems that feature spin 3/2 fermions was considered. For the self-consistent Adler’s model with relativistic massless Rarita-Schwinger fermions (RSA model), we found that the CSE conductivity is five times larger than for massless Dirac fermions. For a model of four-fold band crossing in Rarita-Schwinger-Weyl semimetals, in which massless fermions with quasispin 3/2 exist, we calculated that the CSE conductivity is four times larger than for Weyl fermions. We show that CSE conductivity for any multi-degenerate Fermi point in topological semimetals is proportional to its Chern number and is topologically protected. Along the calculations, we proved an index theorem that relates Chern number of a Fermi-point and spectral asymmetry of the corresponding Landau band structure. The assumption that CSE for any system of chiral fermions is dictated by the corresponding Chern number is found to be correct for RSA model (and for the Dirac fermions).
Exact results in a $$ \mathcal{N} $$ = 2 superconformal gauge theory at strong coupling
Authors: Beccaria M. , Billò M. , Frau M. , Lerda A. , Pini A. 
Published: July 2021

Abstract
We consider the $$ \mathcal{N} $$
N
= 2 SYM theory with gauge group SU(N) and a matter content consisting of one multiplet in the symmetric and one in the anti-symmetric representation. This conformal theory admits a large-N ’t Hooft expansion and is dual to a particular orientifold of AdS5 × S5. We analyze this gauge theory relying on the matrix model provided by localization à la Pestun. Even though this matrix model has very non-trivial interactions, by exploiting the full Lie algebra approach to the matrix integration, we show that a large class of observables can be expressed in a closed form in terms of an infinite matrix depending on the ’t Hooft coupling λ. These exact expressions can be used to generate the perturbative expansions at high orders in a very efficient way, and also to study analytically the leading behavior at strong coupling. We successfully compare these predictions to a direct Monte Carlo numerical evaluation of the matrix integral and to the Padé resummations derived from very long perturbative series, that turn out to be extremely stable beyond the convergence disk |λ| < π2 of the latter.
Loops in AdS: from the spectral representation to position space. Part II
Authors: Carmi Dean 
Published: July 2021

Abstract
We continue the study of AdS loop amplitudes in the spectral representation and in position space. We compute the finite coupling 4-point function in position space for the large-N conformal Gross Neveu model on AdS3. The resummation of loop bubble diagrams gives a result proportional to a tree-level contact diagram. We show that certain families of fermionic Witten diagrams can be easily computed from their companion scalar diagrams. Thus, many of the results and identities of [1] are extended to the case of external fermions. We derive a spectral representation for ladder diagrams in AdS. Finally, we compute various bulk 2-point correlators, extending the results of [1].
A new Wilson line-based action for gluodynamics
Authors: Kakkad Hiren , Kotko Piotr , Stasto Anna 
Published: July 2021

Abstract
We perform a canonical transformation of fields that brings the Yang-Mills action in the light-cone gauge to a new classical action, which does not involve any triple-gluon vertices. The lowest order vertex is the four-point MHV vertex. Higher point vertices include the MHV and $$ \overline{\mathrm{MHV}} $$

MHV
¯

vertices, that reduce to the corresponding amplitudes in the on-shell limit. In general, any n-leg vertex has 2 ≤ m ≤ n − 2 negative helicity legs. The canonical transformation of fields can be compactly expressed in terms of path-ordered exponentials of fields and their functional derivative. We apply the new action to compute several tree-level amplitudes, up to 8-point NNMHV amplitude, and find agreement with the standard methods. The absence of triple-gluon vertices results in fewer diagrams required to compute amplitudes, when compared to the CSW method and, obviously, considerably fewer than in the standard Yang-Mills action.
Identification of the source of a Listeria monocytogenes outbreak by investigational tracing
Authors: Becker Natalie , Schewe Thomas , Setzer Frauke K. , Schröder Mandy , Reckzeh Claudia , Vossenkuhl Birgit , Luber Petra 
Published: July 2021

AbstractThe number of identified listeriosis outbreaks has increased since the sequence typing of Listeria monocytogenes isolates was established in Germany. Due to the nature of the disease, listeriosis outbreaks are difficult to solve. We present investigational tracing as a simple and rapid method to conduct outbreak investigations. The method was applied in 2019 to stop a prolonged listeriosis outbreak in Germany. The starting point for the investigational tracing was nine health care facilities (HCF). Single cases developed listeriosis while they were staying at the nine facilities. Data were collected from companies that delivered foods to HCF and from ready-to-eat (RTE) foods that were consumed there. Following a step-wise approach, data analysis identified similarities in the food supply of the HCF. Food data were heterogeneous and needed to be standardised. Own brands and changing article numbers were challenging aspects during the identification of manufacturers. The analysis of the delivering companies revealed no similarities. Detailed information about the consumed risk foods for Listeria contamination became available for six HCF. All facilities served a wide variety of cold cut meat products to their in-patients. Investigational tracing revealed that only meat products from one out of 29 food business operators had been consumed in all six HCF. Further activities of the authorities enabled the identification of the outbreak strain on food products and in the processing environment of this company. A product recall and the measures taken stopped the listeriosis outbreak. Thus, investigational tracing can be crucial for the clarification of listeriosis outbreaks.
Hyperrigidity of C*-Correspondences
Authors: Kim Se-Jin 
Published: July 2021

AbstractWe show that hyperrigidity for a C*-correspondence (A, X) is equivalent to non-degeneracy of the left action of the Katsura ideal$$\mathcal {J}_X$$JXonX. This extends the work of Kakariadis (Bull Lond Math Soc 45(6):1119–1130, 2013, Theorem 3.3) and Dor-On and Salomon (J Lond Math Soc 98(2):416–438, 2018, Theorem 3.5) who establish this equivalence for discrete graphs as well as the work of Katsoulis and Ramsey (The non-selfadjoint approach to the Hao–Ng isomorphism, arXiv preprintarXiv:1807.11425, 2018, Theorem 3.1), who establish one direction of this equivalence.
AI management beyond the hype: exploring the co-constitution of AI and organizational context
Authors: Holmström Jonny , Hällgren Markus 
Published: July 2021

AbstractAI technologies hold great promise for addressing existing problems in organizational contexts, but the potential benefits must not obscure the potential perils associated with AI. In this article, we conceptually explore these promises and perils by examining AI use in organizational contexts. The exploration complements and extends extant literature on AI management by providing a typology describing four types of AI use, based on the idea of co-constitution of AI technologies and organizational context. Building on this typology, we propose three recommendations for informed use of AI in contemporary organizations. First, explicitly define the purpose of organizational AI use. Second, define the appropriate level of transparency and algorithmic management for organizational AI use. Third, be aware of AI’s context-dependent nature.
Imaging sensor data modelling and evaluation based on optical composite characteristics
Authors: Meister Sebastian , Grundhöfer Lars , Stüve Jan , Groves Roger M. 
Published: July 2021

AbstractAutomated Fibre Placement is a common manufacturing technique for composite parts in the aero-space industry. Therefore, a visual part inspection is required which often covers up to 50% of the actual production time. Moreover, the inspection quality of this manual step fluctuates significantly. A camera-based automated inline inspection is capable of increasing the inspection efficiency and accuracy. However, the interpretability of the acquired data strongly depends on the sensor configuration and the inspected material. Thus, this paper introduces methods for modelling and assessing an imaging sensor on the example of a composite material reflecting a spot laser to a camera sensor. In this context, the reflection properties of the material are incorporated into a simulation and validated in comparison to real camera images from the experimental setup. The EMVA 1288 sensor model in combination with the Cramér–Rao lower bound indicates a feasible estimability of the beam propagation, but shows limitations in the predictability of the number of incident photons. The laser spot analysis indicated that the laser spot can deviate from an exact oval shape but its peak value is suitable for robust spot identification in an image. The outlined methodology is also adaptable to other imaging sensors, illumination sources and materials. Thus, the findings can be useful for other fields and manufacturing processes.
A novel multiscale material plasticity simulation model for high-performance cutting AISI 4140 steel
Authors: Bai Jinxuan , Tong Zhen 
Published: July 2021

AbstractThe achievable machined surface quality relies significantly on the material behavior during the high-performance cutting process. In this paper, a multiscale material plasticity simulation framework is developed to predict the deformation behaviors of AISI 4140 steel under various high-performance cutting conditions. The framework was built by coupling a three-dimensional discrete dislocation dynamic (3D-DDD) model with a finite element method (FEM) through the optimization of a dislocation density-based (DDB) constitutive equation (compiled as a user-defined subroutine in ABAQUS). The movement of edge and screw dislocations such as generation, propagation, siding, and their interactions, was performed by 3D-DDD, and the statistical features of dislocations were used to optimize the critical constants of the DDB constitutive equation. For validation, a classic FEM cutting model (Johnson-Cook constitutive equation) was employed as a reference. The simulation results indicated that the proposed multiscale model not only can precisely predict the stress, strain, cutting force, and temperature as those predicted by the classic FEM simulations, but also capture the microstructure characteristics such as grain size and dislocation density distributions under the tested cutting conditions. Severe dynamic recrystallization phenomena were found at the core shear zones. The recrystallization process reached a dynamic equilibrium at the machined surfaces when the cutting speed is larger than 280 m/min or the external-assisted temperature is between 200 and 350°, indicating an optimal range of machining parameters for improved surface integrity.
The action of the mapping class group on metrics of positive scalar curvature
Authors: Frenck Georg 
Published: July 2021

AbstractWe present a rigidity theorem for the action of the mapping class group $$\pi _0({\mathrm{Diff}}(M))$$

π
0

(
Diff

(
M
)

)

on the space $$\mathcal {R}^+(M)$$

R

+

(
M
)

of metrics of positive scalar curvature for high dimensional manifolds M. This result is applicable to a great number of cases, for example to simply connected 6-manifolds and high dimensional spheres. Our proof is fairly direct, using results from parametrised Morse theory, the 2-index theorem and computations on certain metrics on the sphere. We also give a non-triviality criterion and a classification of the action for simply connected 7-dimensional $${\mathrm{Spin}}$$
Spin
-manifolds.
Serendipitous observations from animal-borne video loggers reveal synchronous diving and equivalent simultaneous prey capture rates in chinstrap penguins
Authors: Hinke Jefferson T. , Russell Tamara M. , Hermanson Victoria R. , Brazier Laura , Walden Stephanie L. 
Published: July 2021

AbstractSeabirds often engage in coordinated, cooperative foraging to improve detection and capture of prey. An extreme example of such coordinated behavior is synchronicity, whereby the movements of individuals are aligned temporally and spatially. Synchronous diving among penguins has been reported, but simultaneous observations of predation by synchronously diving individuals have not. We instrumented chinstrap penguins (Pygoscelis antarcticus) during their incubation period in December 2019 from Cape Shirreff, Livingston Island, Antarctica (60.79°W, 62.46°S) with video and depth recorders to monitor predator foraging behavior and prey consumption rates. Serendipitously, two instrumented individuals, accompanied by a third, banded individual, engaged in synchronous foraging activities on Antarctic krill (Euphausia superba) for 9.25 h. This group formed ashore, transited together to their foraging area, remained in close visual contact after dives, synchronously timed diving behavior, and foraged at similar depths. Prey capture rates were positively correlated across dives and total consumption estimates were equivalent for the two instrumented birds during the video observation period. Video loggers confirmed that synchronous diving and foraging behavior are among the behavioral repertoire of chinstrap penguins and demonstrated equivalent prey capture rates by synchronously foraging predators. The results further suggest that group formation while ashore and group cohesion during a foraging trip may facilitate shared foraging success among group members.
A Stochastic Maximum Principle for Control Problems Constrained by the Stochastic Navier–Stokes Equations
Authors: Benner Peter , Trautwein Christoph 
Published: July 2021

AbstractWe analyze the control problem of the stochastic Navier–Stokes equations in multi-dimensional domains considered in Benner and Trautwein (Math Nachr 292(7):1444–1461, 2019) restricted to noise terms defined by a Q-Wiener process. The cost functional related to this control problem is nonconvex. Using a stochastic maximum principle, we derive a necessary optimality condition to obtain explicit formulas the optimal controls have to satisfy. Moreover, we show that the optimal controls satisfy a sufficient optimality condition. As a consequence, we are able to solve uniquely control problems constrained by the stochastic Navier–Stokes equations especially for two-dimensional as well as for three-dimensional domains.
The impact of bZIP Atf1ortholog global regulators in fungi
Authors: Leiter Éva , Emri Tamás , Pákozdi Klaudia , Hornok László , Pócsi István 
Published: July 2021

Abstract
Regulation of signal transduction pathways is crucial for the maintenance of cellular homeostasis and organismal development in fungi. Transcription factors are key elements of this regulatory network. The basic-region leucine zipper (bZIP) domain of the bZIP-type transcription factors is responsible for DNA binding while their leucine zipper structural motifs are suitable for dimerization with each other facilitiating the formation of homodimeric or heterodimeric bZIP proteins. This review highlights recent knowledge on the function of fungal orthologs of the Schizosaccharomyces pombe Atf1, Aspergillus nidulans AtfA, and Fusarium verticillioides FvAtfA, bZIP-type transcription factors with a special focus on pathogenic species. We demonstrate that fungal Atf1-AtfA-FvAtfA orthologs play an important role in vegetative growth, sexual and asexual development, stress response, secondary metabolite production, and virulence both in human pathogens, including Aspergillus fumigatus, Mucor circinelloides, Penicillium marneffei, and Cryptococcus neoformans and plant pathogens, like Fusarium ssp., Magnaporthe oryzae, Claviceps purpurea, Botrytis cinerea, and Verticillium dahliae.

Key points
• Atf1 orthologs play crucial role in the growth and development of fungi.
• Atf1 orthologs orchestrate environmental stress response of fungi.
• Secondary metabolite production and virulence are coordinated by Atf1 orthologs.