bluuebunny/crossref_metadata_2025_split huggingface dataset:
Controlled Growth of Li Dendrite Induced by Periodic Ni Mesh for Ultrastable Lithium Metal Battery
Authors: Li Qinyi , Li Yalei , Liu Lei , Luo Chengzhao , Hao Yu , Shen Tong , Chen Linsen , Liu Yanhua , Chen Yu 
Published: November 2020

AbstractThe disordered dendritic growth of Li metal seriously hampers the practical application of lithium metal batteries. Great efforts are devoted to suppress the growth of dendrites, it is still necessary to explore measures of controlling dendritic growth and pave ways for normal cell operation in presence of dendrites. Herein, a modification technique of Li metal anode by a periodic Ni mesh with micrometer‐sized grid is proposed for interfacial engineering. Periodic patterned Ni mesh is prepared using a novel laser direct‐writing technique combined with selective electrodeposition process. The growth of Li dendrites is regulated under the effect of unique electric field distribution by the introduction of the Ni mesh. It is noteworthy that the controlled lateral growth of dendrites is successfully realized by the internal structure modification instead of any external electric or magnetic field as has been previously reported. The resultant anode exhibits a stable cycling performance with ultralow overpotential of 6–8 mV for over 1000 h at the current density of 0.5 mA cm−2. It also presents superior electrochemical performance when assembled against LiFePO4 cathode into full cells, with an initial capacity of 133 mA h g−1 and a stable cycling performance over 160 cycles.
Addressing Career Services’ Internationalisation Challenges Through Transnational Consortia
Authors: Rickmann Jérôme , Perez-Encinas Adriana , Fernandez-de-Pinedo Nadia 
Published: November 2020

AbstractProviding high quality education and student experience is critical to attracting and retaining students in an increasingly competitive environment. Higher Education Institutions (HEIs) are under growing pressure to ‘guarantee’ their graduates’ employability and successful access to the labour market. On the other hand, with the increase of international student mobility in the past few decades, a new student profile has emerged, which includes broader professional perspectives in geographical terms. One of the challenges for HEIs is, therefore, to develop their graduates’ relevant skills and support them with structures that ease their integration into the local, national or international labour market.The aim of this paper is to outline both the current context and status of the internationalisation of European career services and the main challenges faced in this process. An exploratory single case analysis is used to identify how the formation of international career service consortia could contribute to overcoming some of the challenges, especially in terms of resource efficiency and international network development and reach.
Edge modes of gravity. Part I. Corner potentials and charges
Authors: Freidel Laurent , Geiller Marc , Pranzetti Daniele 
Published: November 2020

AbstractThis is the first paper in a series devoted to understanding the classical and quantum nature of edge modes and symmetries in gravitational systems. The goal of this analysis is to: i) achieve a clear understanding of how different formulations of gravity provide non-trivial representations of different sectors of the corner symmetry algebra, and ii) set the foundations of a new proposal for states of quantum geometry as representation states of this corner symmetry algebra. In this first paper we explain how different formulations of gravity, in both metric and tetrad variables, share the same bulk symplectic structure but differ at the corner, and in turn lead to inequivalent representations of the corner symmetry algebra. This provides an organizing criterion for formulations of gravity depending on how big the physical symmetry group that is non-trivially represented at the corner is. This principle can be used as a “treasure map” revealing new clues and routes in the quest for quantum gravity. Building up on these results, we perform a detailed analysis of the corner pre-symplectic potential and symmetries of Einstein-Cartan-Holst gravity in [1], use this to provide a new look at the simplicity constraints in [2], and tackle the quantization in [3].
Comments on D3-brane holography
Authors: Chakraborty Soumangsu , Giveon Amit , Kutasov David 
Published: November 2020

Abstract
We revisit the idea that the quantum dynamics of open strings ending on N D3-branes in the large N limit can be described at large ‘t Hooft coupling by classical closed string theory in the background created by the D3-branes in asymptotically flat spacetime. We study the resulting thermodynamics and compute the Hagedorn temperature and other properties of the D3-brane worldvolume theory in this regime. We also consider the theory in which the D3-branes are replaced by negative branes and show that its thermodynamics is well behaved. We comment on the idea that this theory can be thought of as an irrelevant deformation of $$ \mathcal{N} $$
N
= 4 SYM, and on its relation to $$ T\overline{T} $$
T

T
¯

deformed CFT2.
Encountering ethics through design: a workshop with nonhuman participants
Authors: Reddy Anuradha , Nicenboim Iohanna , Pierce James , Giaccardi Elisa 
Published: November 2020

AbstractWhat if we began to speculate that intelligent things have an ethical agenda? Could we then imagine ways to move past the moral divide ‘human vs. nonhuman’ in those contexts, where things act on our behalf? Would this help us better address matters of agency and responsibility in the design and use of intelligent systems? In this article, we argue that if we fail to address intelligent things as objects that deserve moral consideration by their relations within a broad social context, we will lack a grip on the distinct ethical rules governing our interaction with intelligent things, and how to design for it. We report insights from a workshop, where we take seriously the perspectives offered by intelligent things, by allowing unforeseen ethical situations to emerge in an improvisatory manner. By giving intelligent things an active role in interaction, our participants seemed to be activated by the artifacts, provoked to act and respond to things beyond the artifact itself—its direct functionality and user experience. The workshop helped to consider autonomous behavior not as a simplistic exercise of anthropomorphization, but within the more significant ecosystems of relations, practices and values of which intelligent things are a part.
Autocrine effects of PCSK9 on cardiomyocytes
Authors: Wolf Annemarie , Kutsche Hanna Sarah , Schreckenberg Rolf , Weber Martin , Li Ling , Rohrbach Susanne , Schulz Rainer , Schlüter Klaus-Dieter 
Published: November 2020

AbstractProprotein convertase subtilisin kexin type 9 (PCSK9) is in the focus of cardiovascular research due to its role in hepatic low density lipoprotein (LDL) clearance. However, extrahepatic expression of PCSK9 such as in cardiomyocytes and its regulation by oxidized LDL (oxLDL) put notion on extrahepatic effects of PCSK9 as well. This study was aimed to reveal the role of PCSK9 in oxLDL-dependent regulation of cardiomyocyte function. Adult rat and mouse ventricular cardiomyocytes and isolated perfused hearts were used. OxLDL was applied to increase PCSK9 expression in cardiomyocytes. Cell function was analyzed by load-free cell shortening as well as left ventricular developed pressure of isolated hearts. OxLDL decreased shortening in wild-type-derived mouse cardiomyocytes but not in those isolated from PCSK9 knockout mice. Overexpression of human PCSK9 in rat cardiomyocytes reduced shortening in the absence of oxLDL. Addition of recombinant PCSK9 mimicked these effects. In cardiomyocytes, oxLDL induced PCSK9 release into the supernatant. Inhibition of PCSK9 by Pep 2–8 or alirocumab attenuated the oxLDL-induced loss of cardiomyocyte shortening. Cardiomyocytes express surfeit locus protein 4 (SURF-4), a protein required for PCSK9 secretion in human embryonic kidney cells (HEK 293 T), and silencing of SURF-4 reduced the oxLDL effects on cardiomyocytes. In isolated perfused rat hearts PCSK9 inhibition by alirocumab improved the function. In addition, left ventricular function of isolated hearts from PCSK9 knockout mice was increased under basal conditions as well as at 10 min and 120 min of reperfusion following 45 min of ischemia. Collectively, the data show that cardiomyocytes express and release PCSK9 that acts in an autocrine way on cardiomyocytes and impairs their function.
A unified approach to permutation testing for equivalence
Authors: Arboretti Rosa , Pesarin Fortunato , Salmaso Luigi 
Published: November 2020

AbstractThe notion of testing for equivalence of two treatments is widely used in clinical trials, pharmaceutical experiments, bioequivalence and quality control. It is traditionally operated within the intersection–union principle (IU). According to this principle the null hypothesis is stated as the set of effects the differences $$\delta$$
δ
of which lie outside a suitable equivalence interval and the alternative as the set of $$\delta$$
δ
that lie inside it. In the literature related solutions are essentially based on likelihood techniques, which in turn are rather difficult to deal with. A recently published paper goes beyond most of likelihood limitations by using the IU approach within the permutation theory. One more paper, based on Roy’s union–intersection principle (UI) within the permutation theory, goes beyond some limitations of traditional two-sided tests. Such UI approach, effectively a mirror image of IU, assumes a null hypothesis where $$\delta$$
δ
lies inside the equivalence interval and an alternative where it lies outside. Since testing for equivalence can rationally be analyzed by both principles but, as the two differ in terms of the mirror-like roles assigned to the hypotheses under study, they are not strictly comparable. The present paper’s main goal is to look into these problems and provide a sort of comparative analysis of both by highlighting the related requirements, properties, limitations, difficulties, and pitfalls so as to get practitioners properly acquainted with their correct use in practical contexts.
Financial precautions, carbon dioxide leakage, and the European Directive 2009/31/EC on carbon capture and storage (CCS)
Authors: Wifling Manuel 
Published: November 2020

AbstractThe phenomenon of anthropogenic climate change has been identified as a threat multiplier for many human-related concerns. Carbon capture and storage (CCS) can, in combination with several other mitigation technologies, alleviate global warming by reducing carbon dioxide (CO2) emissions. Reducing climate change-related risks via CCS creates another risk, smaller in extent: the risk that some of the stored CO2 leaks out of the storage complex. This article reviews European legislation and evaluates how one of its objectives, that private liabilities of CCS-related leakage risks are not socialized, is ensured. Slight modifications of European legislation are suggested in order to prevent an indefinite liability of CCS operators in case a storage complex turns out to be unexpectedly and unavoidably prone to CO2 leakages. Official German and Hungarian financial precaution specifications are contrasted and related to this article’s finding that the state budget is sufficiently hedged against the expected value of climate-related leakage compensation costs of poorly managed storage complexes if 3 to 6% of a CCS operator’s emission-related revenues are diverted into a financial precaution fund.
A Mathematical Analysis of an Election System Proposed by Gottlob Frege
Authors: Harrenstein Paul , Lackner Marie-Louise , Lackner Martin 
Published: November 2020

AbstractIn 1998 a long-lost proposal for an election law by Gottlob Frege (1848–1925) was rediscovered in the Thüringer Universitäts- und Landesbibliothek in Jena, Germany. The method that Frege proposed for the election of representatives of a constituency features a remarkable concern for the representation of minorities. Its core idea is that votes cast for unelected candidates are carried over to the next election, while elected candidates incur a cost of winning. We prove that this sensitivity to past elections guarantees a proportional representation of political opinions in the long run. We find that through a slight modification of Frege’s original method even stronger proportionality guarantees can be achieved. This modified version of Frege’s method also provides a novel solution to the apportionment problem, which is distinct from all of the best-known apportionment methods, while still possessing noteworthy proportionality properties.
Probabilistic inductive constraint logic
Authors: Riguzzi Fabrizio , Bellodi Elena , Zese Riccardo , Alberti Marco , Lamma Evelina 
Published: November 2020

AbstractProbabilistic logical models deal effectively with uncertain relations and entities typical of many real world domains. In the field of probabilistic logic programming usually the aim is to learn these kinds of models to predict specific atoms or predicates of the domain, called target atoms/predicates. However, it might also be useful to learn classifiers for interpretations as a whole: to this end, we consider the models produced by the inductive constraint logic system, represented by sets ofintegrity constraints, and we propose a probabilistic version of them. Each integrity constraint is annotated with a probability, and the resulting probabilistic logical constraint model assigns a probability of being positive to interpretations. To learn both the structure and the parameters of such probabilistic models we propose the system PASCAL for “probabilistic inductive constraint logic”. Parameter learning can be performed using gradient descent or L-BFGS. PASCAL has been tested on 11 datasets and compared with a few statistical relational systems and a system that builds relational decision trees (TILDE): we demonstrate that this system achieves better or comparable results in terms of area under the precision–recall and receiver operating characteristic curves, in a comparable execution time.
Parametric analysis of a sliding-mode controller to suppress drill-string stick-slip vibration
Authors: Vaziri Vahid , Oladunjoye Ibukunolu O. , Kapitaniak Marcin , Aphale Sumeet S. , Wiercigroch Marian 
Published: November 2020

AbstractDespite a significant research effort to understand and mitigate stick-slip in drill-strings, this problem yet to be solved. In this work, a comprehensive parametric robustness analysis of the sliding mode controller has hitherto been performed. First, a model verification and extensive parametric analysis of the open-loop model is presented. This is followed by a detailed parametric analysis of the sliding-mode controller based closed-loop system for two cases, (i) an ideal actuator with no delay or constraint and (ii) a realistic actuator with delay or/and constraint. It is shown that though the proposed controller works robustly across a wide range of parameters, in the absence of delay, it fails in the presence of a delay, thereby limiting its practical application. Experimental results are included to support these claims. This work underlines the importance of including the inherent system characteristics during the control design process. Furthermore, the parametric analysis presented here is aimed to act as a blue-print for testing the efficacy of relevant control schemes to be proposed in the future.
Allelic diversity study of functional genes in East Africa bread wheat highlights opportunities for genetic improvement
Authors: Wamalwa Mercy , Tadesse Zerihun , Muthui Lucy , Yao Nasser , Zegeye Habtemariam , Randhawa Mandeep , Wanyera Ruth , Uauy Cristobal , Shorinola Oluwaseyi 
Published: November 2020

AbstractWheat (Triticum aestivum L.) is a major staple crop in East Africa (EA) providing 9% and 10% of daily calories and protein intake, respectively. However, EA countries depend on import to meet 55% of their domestic wheat supplies due to increasing demands and low domestic yields. To determine the beneficial gene pool currently exploited for wheat improvement in EA, we examined the allelic diversity of 39 genes of breeding importance in a collection of 239 wheat cultivars and breeding lines from Kenya and Ethiopia using KASP markers. The assayed genes have been shown to control variations in plant height, thousand kernel weight (TKW), grain protein content, pre-harvest sprouting (PHS), disease resistance, and flowering time. We observed the beneficial alleles of some major genes including Gpc-B1, Yr5, Yr15, Sr26, and Fhb1 to be missing or present at low frequencies in this population. Furthermore, we validated the effects of the major Rht-1 alleles and TaCKX-D1 in controlling variation in plant height and thousand kernel weight, respectively, under EA conditions. Our results uncover hitherto unexploited allelic diversity that can be used to improve the genetic potential of EA wheat germplasm. This will inform strategies to rapidly mobilize these beneficial alleles for wheat improvement in EA.
Complexity-theoretic aspects of expanding cellular automata
Authors: Modanese Augusto 
Published: November 2020

AbstractThe expanding cellular automata (XCA) variant of cellular automata is investigated and characterized from a complexity-theoretical standpoint. An XCA is a one-dimensional cellular automaton which can dynamically create new cells between existing ones. The respective polynomial-time complexity class is shown to coincide with $${\le _{tt}^p}(\textsf {NP})$$

≤

tt

p

(
NP
)

, that is, the class of decision problems polynomial-time truth-table reducible to problems in $$\textsf {NP}$$
NP
. An alternative characterization based on a variant of non-deterministic Turing machines is also given. In addition, corollaries on select XCA variants are proven: XCAs with multiple accept and reject states are shown to be polynomial-time equivalent to the original XCA model. Finally, XCAs with alternative acceptance conditions are considered and classified in terms of $${\le _{tt}^p}(\textsf {NP})$$

≤

tt

p

(
NP
)

and the Turing machine polynomial-time class $$\textsf {P}$$
P
.
It matters how to recall – task differences in retrieval practice
Authors: Endres Tino , Kranzdorf Lena , Schneider Vivien , Renkl Alexander 
Published: November 2020

AbstractThe type of a recall task may substantially influence the effects of learning by retrieval practice. In a within-subject design, 54 university students studied two expository texts, followed by retrieval practice with either short-answer tasks (targeted retrieval) or a free-recall task (holistic retrieval). Concerning the direct effects of retrieval practice, short-answer tasks led to increased retention of directly retrieved targeted information from the learning contents, whereas free-recall tasks led to better retention of further information from the learning contents. Concerning indirect effects, short-answer tasks improved metacognitive calibration; free-recall tasks increased self-efficacy and situational interest. These findings confirm the assumption that the effects of retrieval practice depend on the type of recall task: short-answer tasks help us remember targeted information units and foster metacognitive calibration. Free-recall tasks help us remember a broader spectrum of information, and they foster motivational factors.
Addressing Fracture Properties of Individual Constituents Within a Cu-WTi-SiOx-Si Multilayer
Authors: Alfreider Markus , Zechner Johannes , Kiener Daniel 
Published: November 2020

AbstractWith modern materials applications continually decreasing in size, e.g., microelectronics, sensors, actuators, and medical implants, quantifying materials parameters becomes increasingly challenging. Specifically, addressing individual constituents of a system, such as interfaces or buried layers in a multilayer structure, emerges as a topic of great importance. We demonstrate herein a technique to assess fracture parameters of different interfaces of a Cu-WTi-SiOx-Si model system based on in situ microcantilever testing in a scanning electron microscope. Positioning the initial notch position with respect to the interface of interest enabled selection of different crack paths, while an additional overlaid sinusoidal signal permitted continuous measurement of stiffness changes and thereby experimental measurement of the actual crack extension. We thus achieved continuous J–Δa curve measurements for the interface between Cu and WTi, the bulk WTi, and the interface between WTi and SiOx. The localized nature of this novel approach makes it generally applicable to testing specific interfaces.
Is the plantaris muscle the most undefined human skeletal muscle?
Authors: Kurtys K. , Gonera B. , Olewnik Ł. , Karauda P. , Tubbs R. Shane , Polguj M. 
Published: November 2020

AbstractThe plantaris muscle is located in the posterior aspect of the superficial compartment of the lower leg, running from the lateral condyle of the femur to the calcaneal tuberosity. Classically, it is characterized by a small and fusiform muscle belly, which then changes into a long slender tendon. From the evolutionary point of view, the muscle is considered vestigial. However, it has recently been suspected of being a highly specialized sensory muscle because of its high density of muscle spindles. It has a noticeable tendency to vary in respect of both origin and insertion. Researchers have published many reports on the potential clinical significance of the muscle belly and tendon, including mid-portion Achilles tendinopathy, ‘tennis leg syndrome’, and popliteal artery entrapment syndrome. The right knee joint area was subjected to classical anatomical dissection, during which an atypical plantaris muscle was found and examined in detail. Accurate morphometric measurements were made. The muscle belly was assessed as bifurcated. Morphologically, superior and inferior parts were presented. There was a tendinous connection (named band A) with the iliotibial tract and an additional insertion (named band B) to the semimembranosus tendon. Both bands A and B presented very broad fan-shaped attachments. The human plantaris muscle is of considerable interest and has frequent morphological variations in its proximal part. Its specific characteristics can cause clinical problems and lead to confusion in diagnosis. More studies are needed to define its actual features and functions.
Transient tribo-dynamic analysis of crosshead slipper in low-speed marine diesel engines during engine startup
Authors: Li Rui , Meng Xianghui , Dong Jingjin , Li Wenda 
Published: November 2020

AbstractA crosshead slipper-guide system, which bears a significant thrust force, is an essential friction pair in low-speed marine diesel engines. Owing to the low moving speed of the crosshead slipper during engine startup, it is difficult to form good hydrodynamic lubrication between the crosshead slipper and guide. Therefore, a detailed analysis of the crosshead slipper during engine startup is needed. In this study, a new transient tribo-dynamic model for a crosshead slipper during the engine startup process is presented. The model consists of a mixed lubrication model of the crosshead slipper-guide and dynamic models of the piston assembly, crosshead assembly, connecting rod, and crankshaft. The tribo-dynamic performances of the crosshead slipper during startup and under the rated conditions were simulated and compared. The results show that the tribo-dynamics of the crosshead slipper during the startup process are significantly different from those under the rated conditions. Some measures beneficial for the low friction of a crosshead slipper-guide under the rated conditions may significantly increase the friction loss of the crosshead slipper-guide system during the startup process.