bluuebunny/crossref_metadata_2025_split huggingface dataset:
Introduction of Phase Change Material into Sustainable Carbon Materials for Enhanced Shape Stability and Thermal Conductivity
Authors: Zou Zhiqiang , Wu Wei , Shen Wanting 
Published: July 2020

AbstractNew sustainable carbon materials were synthesized from a low‐price and eco‐friendly carrot via hydrothermal reaction and carbonization approach. Afterwards, palmitic acid (PA) was impregnated into the carrot‐derived carbon material (CCM) to prepare PA@CCM composites through vacuum impregnation method. The thermal properties and shape stability of PA@CCM composites were evaluated by differential scanning calorimetry (DSC), thermal conductivity and thermal cycling tests. Owing to the special hybrid microstructure of the CCMs, the loading ratio of PA in PA@CCM composites could reach up to 85.3 % with the latent heat of 166.4 J g−1. More importantly, the PA@CCM composites show negligible leakage above the melting point of PA, exhibiting excellent shape stability. Compared with pristine PA, the thermal conductivity of PA@CCM composites could greatly enhanced by 145.5 %. Thus, PA@CCM composites can be considered as a promising candidate for thermal energy storage applications.
Synthesis and Reactivity of Heterotrinuclear Platinum Cyclometalated Complexes Containing Bridging Nitrido Ligands
Authors: Qin Shiwei , Chong Man‐Chun , Cheung Wai‐Man , H.‐Y. Sung Herman , Williams Ian D. , Leung Wa‐Hung 
Published: July 2020

AbstractThe treatment of [M(LOEt)(N)Cl2] (LOEt−=[Co(η5‐C5H5){P(O)(OEt)2}3]−) with the Pt(II) bis(cyclometalated) complex [Pt(C N CBu)(DMSO)] (H2C N CBu=2,6‐di(4‐tert‐butylphenyl)pyridine; DMSO=dimethylsulfoxide) afforded the heterotrinuclear nitrido complexes [LOEtCl2M(μ‐N)Pt(C N CBu)] (M=Ru (1‐Ru), Os (1‐Os)). The Pt−N(nitrido) (1.821(5) Å) and Ru−N (1.673(5) Å) distances in 1‐Ru are consistent with the Ru=N=Pt bonding description. The Pt−N(nitrido) distance in 1‐Os (1.859(7) Å) is longer than that in 1‐Ru, suggesting the π interaction between Pt(II) and Os≡N is weaker than that for the Ru counterpart. Oxidation of 1‐Ru with PhICl2 afforded the Pt(IV) dichloride complex [LOEtCl2Ru(μ‐N)Pt(C N CBu)Cl2] (2) that has a longer Pt−N distance (1.893(3) Å) than that in 1‐Ru, indicating the weakening of the Pt−N(Ru) π bonding upon oxidation of Pt(II) to Pt(IV). Treatment of [Pt(C N CBu)(DMSO)] with [nBu4N][Ru(N)Cl4] in tetrahydrofuran (THF) afforded [nBu4N][(THF)Cl4Ru(μ‐N)Pt(C N CBu)] (3), which reacted with K[N(Ph2PS)2] and K[N(iPr2PO)2] to yield [Cl{N(Ph2PS)2}2Ru(μ‐N)Pt(C N CBu)] (4) and [nBu4N][Cl3{N(iPr2PO)2}Ru(μ‐N)Pt(C N CBu)] (5), respectively. The short Pt−N(nitrido) distances in 3 (1.816(5) Å) and 4 (1.809(2) Å) are indicative of Pt=N double bond character.
How authentic leadership impacts on job insecurity: The multiple mediating role of psychological empowerment and psychological capital
Authors: Wang Dawei , Kan Wenjing , Qin Shaotian , Zhao Chaoyue , Sun Yuchen , Mao Wenxu , Bian Xiaohua , Ou Yaping , Zhao Ziyu , Hu Yixin 
Published: July 2020

AbstractPrevious studies have suggested that leadership style may have an impact on job insecurity among employees. Authentic leaders encourage the development of the people around them by practicing real values, beliefs and behaviours, being subordinate oriented and making honest evaluations of the behaviour and performance of employees. Authentic leadership, often considered the ‘root construct’ of other positive leadership forms, conforms to Chinese culture and hence, may be the most suitable leadership style for organizations following this culture. As the effect of authentic leadership on job insecurity is unclear, this study aimed to examine the mechanism between job insecurity and authentic leadership and further explore the mediating effect of psychological empowerment and psychological capital. The results of this study, involving 451 employees from 68 departments of a communications enterprise in China, revealed that authentic leadership has a cross‐level negative impact on employees' job insecurity. Moreover, psychological empowerment and psychological capital played a multiple mediating role between authentic leadership and job insecurity.
Modelling the Societal Division of Added Value Created Through Manufacturing 4.0
Authors: Hiilamo Heikki , Aaltonen Henri 
Published: July 2020

AbstractWhile Manufacturing 4.0 will create benefits and wealth for the leading manufacturing companies that are employing automated and robotized manufacturing systems the replacement of human workers with automation and the geographical shift of manufacturing will potentially create temporary waves of risen unemployment in the manufacturing sector. This chapter discusses models for of societal systems that support the members of the society in the changing environment brought about by technology-driven disruptions, while they ensure the normal functioning of the society—views of nine experts from Germany, The Netherlands, and South Korea on these issues were elicited and are presented and shortly analyzed.
Additive Manufacturing—Past, Present, and the Future
Authors: Korpela Markus , Riikonen Niko , Piili Heidi , Salminen Antti , Nyrhilä Olli 
Published: July 2020

AbstractThis chapter provides a rough overall view of the current state of additive manufacturing, how the status quo was reached and what the future looks like, and how these issues are related to the Manufacturing 4.0 context. Chapter focuses on the most developed and studied form of additive manufacturing—laser based powder bed fusion of metal materials. Main challenges, possibilities, and technology readiness-level are presented together with a discussion about the approximate costs related to manufacturing with the-state-of-the-art systems.
Additive Manufacturing from the Point of View of Materials Research
Authors: Laitinen Ville , Merabtene Mahdi , Stevens Erica , Chmielus Markus , Van Humbeeck Jan , Ullakko Kari 
Published: July 2020

AbstractConcentrated on additive manufacturing, this chapter discusses materials research in the Manufacturing 4.0 context. In addition to providing a brief review on stimuli-responsive materials and their applications under Manufacturing 4.0, this chapter also looks ahead and discusses in detail the recent developments in additive manufacturing of machines, particularly machines based on the special characteristics of certain stimuli-responsive materials, such as thermally activated shape memory alloys, magnetic shape memory alloys and magnetocaloric materials. Furthermore, this chapter emphasizes possible future directions for the additive manufacturing of metallic materials in general.
Non-supersymmetric branes
Authors: Cribiori Niccolò , Roupec Christoph , Tournoy Magnus , Van Proeyen Antoine , Wrase Timm 
Published: July 2020

Abstract
We discuss how to incorporate non-supersymmetric branes in compactifications of type II string theories. We particularly focus on flux compactifications on SU(3) × SU(3) structure manifolds to four dimensions, so that a linear $$ \mathcal{N} $$
N
= 1 supersymmetry is spontaneously broken by spacetime filling Dp-branes. Anti-Dp-branes are a very special subset of such branes but our analysis is generic. We show that the backreaction of non-supersymmetric branes can be incorporated into the standard 4d $$ \mathcal{N} $$
N
= 1 supergravity by including a nilpotent chiral multiplet. Supersymmetry in such setups is always spontaneously broken and non-linearly realized. In particular this means that, contrary to what was previously thought, brane supersymmetry breaking cannot be simply described by a D-term in 4d $$ \mathcal{N} $$
N
= 1 supergravity theories.
Generating series of all modular graph forms from iterated Eisenstein integrals
Authors: Gerken Jan E. , Kleinschmidt Axel , Schlotterer Oliver 
Published: July 2020

AbstractWe study generating series of torus integrals that contain all so-called modular graph forms relevant for massless one-loop closed-string amplitudes. By analysing the differential equation of the generating series we construct a solution for their low-energy expansion to all orders in the inverse string tensionα′. Our solution is expressed through initial data involving multiple zeta values and certain real-analytic functions of the modular parameter of the torus. These functions are built from real and imaginary parts of holomorphic iterated Eisenstein integrals and should be closely related to Brown’s recent construction of real-analytic modular forms. We study the properties of our real-analytic objects in detail and give explicit examples to a fixed order in theα′-expansion. In particular, our solution allows for a counting of linearly independent modular graph forms at a given weight, confirming previous partial results and giving predictions for higher, hitherto unexplored weights. It also sheds new light on the topic of uniform transcendentality of theα′-expansion.
A measurable angular distribution for $$ \overline{B}\to {D}^{\ast }{\tau}^{-}{\overline{v}}_{\tau } $$ decays
Authors: Bhattacharya Bhubanjyoti , Datta Alakabha , Kamali Saeed , London David 
Published: July 2020

Abstract
At present, the measurements of $$ {R}_{D^{\left(\ast \right)}} $$

R

D

∗

and RJ/ψ hint at new physics (NP) in $$ b\to c{\tau}^{-}\overline{v} $$
b
→
c

τ
−

v
¯

decays. The angular distribution of $$ \overline{B}\to {D}^{\ast}\left(\to D\pi \right){\tau}^{-}{\overline{v}}_{\tau } $$

B
¯

→

D
∗

→
Dπ

τ
−

v
¯

τ

would be useful for getting information about the NP, but it cannot be measured. The reason is that the three-momentum $$ {\overrightarrow{p}}_{\tau } $$

p
→

τ

cannot be determined precisely since the decay products of the τ− include an undetected ντ. In this paper, we construct a measurable angular distribution by considering the additional decay τ−→ π−ντ. The full process is $$ \overline{B}\to {D}^{\ast}\left(\to D{\pi}^{\prime}\right){\tau}^{-}\left(\to {\pi}^{-}{v}_{\tau}\right){\overline{v}}_{\tau } $$

B
¯

→

D
∗

→
D

π
′

τ
−

→

π
−

v
τ

v
¯

τ

, which includes three final-state particles whose three-momenta can be measured: D, π′, π−. The magnitudes and relative phases of all the NP parameters can be extracted from a fit to this angular distribution. One can measure CP-violating angular asymmetries. If one integrates over some of the five kinematic parameters parametrizing the angular distribution, one obtains (i) familiar observables such as the q2 distribution and the D∗ polarization, and (ii) new observables associated with the π− emitted in the τ decay: the forward-backward asymmetry of the π− and the CP-violating triple-product asymmetry.
Improved MSSM Higgs mass calculation using the 3-loop FlexibleEFTHiggs approach including xt-resummation
Authors: Kwasnitza Thomas , Stöckinger Dominik , Voigt Alexander 
Published: July 2020

Abstract
We present an improved calculation of the light CP-even Higgs boson pole mass in the MSSM based on the FlexibleEFTHiggs hybrid method. The calculation resums large logarithms to all orders and includes power-suppressed terms at fixed order. It uses state-of-the-art 2- and 3-loop matching of the quartic Higgs coupling and renormalization group running up to 4-loop, resulting in a resummation of large logarithmic corrections up to N3LL level. A conceptually novel ingredient is the expansion of the matching conditions in terms of high-scale MSSM parameters instead of SM parameters. In this way leading QCD-enhanced terms in the stop-mixing parameter are effectively resummed, leading to an improved numerical convergence of the perturbative expansion. Furthermore, the avoidance of double counting of loop corrections is more transparent than in other approaches and more independent of the high-scale model. We present numerical results and a detailed discussion of theoretical uncertainties for standard benchmark scenarios.
$$ \mathcal{SW}\left(\frac{3}{2},2\right) $$ subsymmetry in G2, Spin(7) and $$ \mathcal{N} $$ = 2 CFTs
Authors: Fiset Marc-Antoine 
Published: July 2020

AbstractSpectral flow, spacetime supersymmetry, topological twists, chiral primaries related to marginal deformations, mirror symmetry: these are important consequences of the worldsheet$$ \mathcal{N} $$N= 2 superconformal symmetry of strings on Calabi-Yau manifolds. To various degrees of certainty, these features were also established when the target is either 7d or 8d with exceptional holonomyG2or Spin(7) respectively. We show that these are more than mere analogies. We exhibit an underlying symmetry$$ \mathcal{SW}\left(\frac{3}{2},2\right) $$SW322making a bridge between the latter cases and K3 target spaces. Reviewing unitary representations of$$ \mathcal{SW}\left(\frac{3}{2},2\right) $$SW322leads us to speculate on further roles of this algebra in string theory compactifications and on the existence of topologically twisted versions of$$ \mathcal{SW}\left(\frac{3}{2},2\right) $$SW322theories.
Trifectas for TN in 5d
Authors: Eckhard Julius , Schäfer-Nameki Sakura , Wang Yi-Nan 
Published: July 2020

Abstract
The trinions TN are a class of 5d $$ \mathcal{N} $$
N
= 1 superconformal field theories (SCFTs) realized as M-theory on ℂ3/ℤN× ℤN . We apply to TN , as well as closely-related SCFTs that are obtained by mass deformations, a multitude of recently developed approaches to studying 5d SCFTs and their IR gauge theory descriptions. Thereby we provide a complete picture of the theories both on the Coulomb branch and Higgs branch, from various geometric points of view — toric and gluing of compact surfaces as well as combined fiber diagrams — to magnetic quivers and Hasse diagrams.
Fermionic pole-skipping in holography
Authors: Čeplak Nejc , Ramdial Kushala , Vegh David 
Published: July 2020

Abstract
We examine thermal Green’s functions of fermionic operators in quantum field theories with gravity duals. The calculations are performed on the gravity side using ingoing Eddington-Finkelstein coordinates. We find that at negative imaginary Matsubara frequencies and special values of the wavenumber, there are multiple solutions to the bulk equations of motion that are ingoing at the horizon and thus the boundary Green’s function is not uniquely defined. At these points in Fourier space a line of poles and a line of zeros of the correlator intersect. We analyze these ‘pole-skipping’ points in three-dimensional asymptotically anti-de Sitter spacetimes where exact Green’s functions are known. We then generalize the procedure to higher-dimensional spacetimes and derive the generic form the boundary correlator takes near the pole-skipping points in momentum space. We also discuss the special case of a fermion with half-integer mass in the BTZ background. We discuss the implications and possible generalizations of the results.
Runtime enforcement of timed properties usinggames
Authors: Renard Matthieu , Rollet Antoine , Falcone Yliès 
Published: July 2020

AbstractThis paper deals with runtime enforcement of timed properties with uncontrollable events. Runtime enforcement consists in defining and using an enforcement mechanism that modifies the executions of a running system to ensure their correctness with respect to the desired property. Uncontrollable events cannot be modified by the enforcement mechanisms and thus have to be released immediately. We present a complete theoretical framework for synthesising such mechanism, modelling the runtime enforcement problem as a Büchi game. It permits to pre-compute the decisions of the enforcement mechanism, thus avoiding to explore the whole execution tree at runtime. The obtained enforcement mechanism is sound, compliant and optimal, meaning that it should output as soon as possible correct executions that are as close as possible to the input execution. This framework takes as input any timed regular property modelled by a timed automaton. We present GREP, a tool implementing this approach. We provide algorithms and implementation details of the different modules of GREP, and evaluate its performance. The results are compared with another state of the art runtime enforcement tool.
Chemoenzymatic synthesis of daptomycin analogs active against daptomycin-resistant strains
Authors: Scull Erin M. , Bandari Chandrasekhar , Johnson Bryce P. , Gardner Eric D. , Tonelli Marco , You Jianlan , Cichewicz Robert H. , Singh Shanteri 
Published: July 2020

Abstract
Daptomycin is a last resort antibiotic for the treatment of infections caused by many Gram-positive bacterial strains, including vancomycin-resistant Enterococcus (VRE) and methicillin- and vancomycin-resistant Staphylococcus aureus (MRSA and VRSA). However, the emergence of daptomycin-resistant strains of S. aureus and Enterococcus in recent years has renewed interest in synthesizing daptomycin analogs to overcome resistance mechanisms. Within this context, three aromatic prenyltransferases have been shown to accept daptomycin as a substrate, and the resulting prenylated analog was shown to be more potent against Gram-positive strains than the parent compound. Consequently, utilizing prenyltransferases to derivatize daptomycin offered an attractive alternative to traditional synthetic approaches, especially given the molecule’s structural complexity. Herein, we report exploiting the ability of prenyltransferase CdpNPT to synthesize alkyl-diversified daptomycin analogs in combination with a library of synthetic non-native alkyl-pyrophosphates. The results revealed that CdpNPT can transfer a variety of alkyl groups onto daptomycin’s tryptophan residue using the corresponding alkyl-pyrophosphates, while subsequent scaled-up reactions suggested that the enzyme can alkylate the N1, C2, C5, and C6 positions of the indole ring. In vitro antibacterial activity assays using 16 daptomycin analogs revealed that some of the analogs displayed 2–80-fold improvements in potency against MRSA, VRE, and daptomycin-resistant strains of S. aureus and Enterococcus faecalis. Thus, along with the new potent analogs, these findings have established that the regio-chemistry of alkyl substitution on the tryptophan residue can modulate daptomycin’s potency. With additional protein engineering to improve the regio-selectivity, the described method has the potential to become a powerful tool for diversifying complex indole-containing molecules.

Key points
• CdpNPT displays impressive donor promiscuity with daptomycin as the acceptor.
• CdpNPT catalyzes N1-, C2-, C5-, and C6-alkylation on daptomycin’s tryptophan residue.
• Differential alkylation of daptomycin’s tryptophan residue modulates its activity.
Wettability, water absorption and water storage in rosette leaves of the dragon tree (Dracaena draco L.)
Authors: Jura-Morawiec Joanna , Marcinkiewicz Jan 
Published: July 2020

Abstract
Main conclusion
Leaf surfaces of Dracaena draco are wettable and can absorb water. The thick, basal leaf part could act as a water reservoir that changes in volume with plant hydration.

Abstract
Rosettes of leaves of Dracaena draco play an important role in directing fog water through leaf axils into the stem tissues, where it can be stored for further use. However, how water is intercepted and collected by the leaves remains unclear, especially since leaf blade surfaces are considered hydrophobic. Based on the observations of D. draco individuals growing in Spain and in glasshouse conditions in Poland, we hypothesised that their long leaves (~ 70 cm) are able to absorb water along the whole leaf blade, but leaf age affects this process. We used water droplet contact angle measurements, anatomical analyses of leaf cross sections along the age gradient and dye tracer experiments to test this hypothesis. The data showed that the leaf surfaces of D. draco are wettable. In general, the mature leaves of the rosette are more wettable than the young ones. Water can be absorbed both through the adaxial and abaxial surfaces. The hydrenchyma is not uniformly distributed along the leaf, it is especially abundant towards the leaf base where it forms a massive water reservoir, which changes in volume depending on plant water status. The results of these studies shed light on the role of rosettes in water absorption by D. draco, and broaden our understanding of the functioning of this vulnerable species.
Kidney outcomes for children with lupus nephritis
Authors: Oni Louise , Wright Rachael D , Marks Stephen , Beresford Michael W , Tullus Kjell 
Published: July 2020

AbstractSystemic lupus erythematosus is a rare lifelong multi-systemic autoimmune condition. Juvenile-onset SLE (JSLE) is recognized to have a more active disease course when compared with adult-onset disease and patients have a worse long-term survival. Kidney involvement occurs in over 50% of children and treatment decisions are guided by the histological classification. Several international groups have produced treatment protocols that rely on an intense period of immunosuppression to halt the acute kidney inflammatory process, followed by maintenance therapy with close observation for disease improvement and prompt evaluation of disease flares. A reduced glomerular filtration rate at presentation is predictive of later stage chronic kidney disease (CKD) in multivariate analysis. Kidney remission remains suboptimal with only 40–60% of patients achieving complete remission. Kidney flares are seen in over a third of patients. The rate of CKD 5 is reported to be up to 15% and the presence of lupus nephritis (LN) has an established link with an associated increase in mortality. In established kidney failure, transplantation seems to be the optimal kidney replacement modality for this group of patients, ideally after a period of disease quiescence. Modified outcome measures in clinical trials have demonstrated that biologic agents can be effective in this disease. Current biologic agents under investigation include obinutuzimab, belimumab, atacicept, anifrolumab, tocilizumab, eculizumab, dapirolizumab, and abatacept. Future research should focus on discovering early disease biomarkers, including surrogates for later cardiovascular disease, and evaluating biological agents as adjuncts to improve the rates of complete remission and subsequently influence the kidney outcome. The aim of this review article is to summarize the current kidney outcomes for this disease with a view to identifying key areas that may help to reduce the risk of long-term CKD.
No effect of gestational diabetes or pre-gestational obesity on 6-year offspring left ventricular function—RADIEL study follow-up
Authors: Litwin Linda , Sundholm Johnny K. M. , Rönö Kristiina , Koivusalo Saila B. , Eriksson Johan G. , Sarkola Taisto 
Published: July 2020

Abstract
Aims
We aimed to investigate associations between pre-pregnancy obesity, gestational diabetes (GDM), offspring body composition, and left ventricular diastolic and systolic function in early childhood.

Methods
This is an observational study, including 201 mother–child pairs originating from the Finnish Gestational Diabetes Prevention Study (RADIEL; 96 with GDM, 128 with pre-pregnancy obesity) with follow-up from gestation to 6-year postpartum. Follow-up included dyads anthropometrics, body composition, blood pressure, and child left ventricular function with comprehensive echocardiography (conventional and strain imaging).

Results
Offspring left ventricular diastolic and systolic function was not associated with gestational glucose concentrations, GDM, or pregravida obesity. Child body fat percentage correlated with maternal pre-pregnancy BMI in the setting of maternal obesity (r = 0.23, P = 0.009). After adjusting for child lean body mass, age, sex, systolic BP, resting HR, maternal lean body mass, pre-gestational BMI, and GDM status, child left atrial volume increased by 0.3 ml (95% CI 0.1, 0.5) for each 1% increase in child body fat percentage.

Conclusions
No evidence of foetal cardiac programming related to GDM or maternal pre-pregnancy obesity was observed in early childhood. Maternal pre-pregnancy obesity is associated with early weight gain. Child adiposity in early childhood is independently associated with increased left atrial volume, but its implications for long-term left ventricle diastolic function and cardiovascular health remain unknown.