bluuebunny/crossref_metadata_2025 huggingface dataset:
Twist-three cross-sections in deeply virtual Compton scattering
Authors: Guo Yuxun , Ji Xiangdong , Kriesten Brandon , Shiells Kyle
Published: June 2022

Abstract

We study the deeply virtual Compton scattering process with both twist-two and twist-three Compton form factors and present our cross-sections formulas with all polarization configurations. While the twist-three contributions are generally assumed to be negligible in the literature due to the kinematical suppression, we compare them with the twist-two ones at typical JLab 6 GeV and 12 GeV kinematics as well as EIC kinematics and show their kinematical suppression explicitly, justifying the leading-twist approximation made in the literature. In addition, we also estimate the twist-three Compton form factors using Wandzura-Wilczek relations and inputs of twist-two generalized parton distributions based on a reggeized spectator model. With those estimated Compton form factors, we analyze the kinematical behavior of twist-two and twist-three cross-sections in a wide range of kinematics, and discuss the optimal regions for separating the leading-twist effects from the higher-twist ones.
A strongly first-order electroweak phase transition from Loryons
Authors: Banta Ian
Published: June 2022

Abstract

We study the effect of BSM particles receiving most of their mass from their coupling to the Higgs boson (“Loryons”) on the electroweak phase transition. The existence of BSM Loryons would imply that electroweak symmetry must be non-linearly realized in the effective theory of the Standard Model. Since, by definition, Loryons have a significant coupling to the Higgs, they are expected to have a significant effect on the Higgs effective potential and thereby the electroweak phase transition. We show that the BSM Loryon parameter space viable under current experimental and theoretical constraints overlaps heavily with the parameter space in which a strongly first-order phase transition is predicted. The portion of the experimentally allowed parameter space which gives a strongly first-order phase transition is significantly larger for Loryons as compared to non-Loryons.
Information scrambling versus quantum revival through the lens of operator entanglement
Authors: Goto Kanato , Mollabashi Ali , Nozaki Masahiro , Tamaoka Kotaro , Tan Mao Tian
Published: June 2022

Abstract

In this paper, we look for signatures of quantum revivals in two-dimensional conformal field theories (2d CFTs) on a spatially compact manifold by using operator entanglement. It is believed that thermalization does not occur on spatially compact manifolds as the quantum state returns to its initial state which is a phenomenon known as quantum revival. We find that in CFTs such as the free fermion CFT, the operator mutual information exhibits quantum revival in accordance with the relativistic propagation of quasiparticles while in holographic CFTs, the operator mutual information does not exhibit this revival and the quasiparticle picture breaks down. Furthermore, by computing the tripartite operator mutual information, we find that the information scrambling ability of holographic CFTs can be weakened by the finite size effect. We propose a modification of an effective model known as the line tension picture to explain the entanglement dynamics due to the strong scrambling effect and find a close relationship between this model and the wormhole (Einstein-Rosen Bridge) in the holographic bulk dual.
Aspects of entanglement in non-local field theories with fractional Laplacian
Authors: Roy Pratim
Published: June 2022

Abstract

In recent years, various aspects of theoretical models with long range interactions have attracted attention, ranging from out-of-time-ordered correlators to entanglement. In the present paper, entanglement properties of a simple non-local model with long-range interactions in the form of a fractional Laplacian is investigated in both static and a quantum quench scenario. Logarithmic negativity, which is a measure for entanglement in mixed states is calculated numerically. In the static case, it is shown that the presence of long-range interaction ensures that logarithmic negativity decays much slower with distance compared to short-range models. For a sudden quantum quench, the temporal evolution of the logarithmic negativity reveals that, in contrast to short-range models, logarithmic negativity exhibits no revivals for long-range interactions for the time intervals considered. To further support this result, a simpler measure of entanglement, namely the entanglement entropy is also studied for this class of models.
Goldilocks modes and the three scattering bases
Authors: Donnay Laura , Pasterski Sabrina , Puhm Andrea
Published: June 2022

Abstract

We consider massless scattering from the point of view of the position, momentum, and celestial bases. In these three languages different properties of physical processes become manifest or obscured. Within the soft sector, they highlight distinct aspects of the infrared triangle: quantum field theory soft theorems arise in the limit of vanishing energy ω, memory effects are described via shifts of fields at the boundary along the null time coordinate u, and celestial symmetry algebras are realized via currents that appear at special values of the conformal dimension ∆. We focus on the subleading soft theorems at ∆ = 1 − s for gauge theory (s = 1) and gravity (s = 2) and explore how to translate the infrared triangle to the celestial basis. We resolve an existing tension between proposed overleading gauge transformations as examined in the position basis and the ‘Goldstone-like’ modes where we expect celestial symmetry generators to appear. In the process we elucidate various order-of-limits issues implicit in the celestial formalism. We then generalize our construction to the tower of w1+∞ generators in celestial CFT, which probe further subleading-in-ω soft behavior and are related to subleading-in-r vacuum transitions that measure higher multipole moments of scatterers. In the end we see that the celestial basis is ‘just right’ for identifying the symmetry structure.
Spatial Filter for the Pseudo-spectral Implementation of Fractional Derivative Wave Equation
Authors: Xu Qiang , Wang Yanghua
Published: June 2022

The viscoelasticity of the subsurface media varies spatially, and such viscoelasticity can be represented concisely by a wave equation in the form of fractional temporal derivative (FTD). We have developed a strategy for simulating seismic waves propagating through a heterogeneous viscoelastic model. The FTD is transferred to fractional spatial derivatives (FSDs), and the FSDs are implemented through the fast Fourier transform (FFT), for improving the computational efficiency. However, the FFT implementation is not rigorously applicable to the heterogeneous model. In this paper, we have reformulated the FSD wave equation by introducing a spatial-position dependent filter. This spatial filter corrects the errors that are caused by the assumption of non-heterogeneity in the FFT implementation. This formulation appropriately represents the viscoelastic effect in seismic wave propagation, leading to the improvement on the accuracy of numerical simulation.
Gromov–Witten theory and invariants of matroids
Authors: Ranganathan Dhruv , Usatine Jeremy
Published: June 2022

We use techniques from Gromov–Witten theory to construct new invariants of matroids taking value in the Chow groups of spaces of rational curves in the permutohedral toric variety. When the matroid is realizable by a complex hyperplane arrangement, our invariants coincide with virtual fundamental classes used to define the logarithmic Gromov–Witten theory of wonderful models of arrangement complements, for any logarithmic structure supported on the wonderful boundary. When the boundary is empty, this implies that the quantum cohomology ring of a hyperplane arrangement’s wonderful model is a combinatorial invariant, i.e., it depends only on the matroid. When the boundary divisor is maximal, we use toric intersection theory to convert the virtual fundamental class into a balanced weighted fan in a vector space, having the expected dimension. We explain how the associated Gromov–Witten theory is completely encoded by intersections with this weighted fan. We include a number of questions whose positive answers would lead to a well-defined Gromov–Witten theory of non-realizable matroids.
Scale-dependent patterns and drivers of vascular plant, bryophyte and lichen diversity in dry grasslands of the Swiss inneralpine valleys
Authors: Bergauer Miro , Dembicz Iwona , Boch Steffen , Willner Wolfgang , Babbi Manuel , Blank-Pachlatko Jonathan , Catalano Chiara , Cykowska-Marzencka Beata , Gehler Jamyra , Guarino Riccardo , Keller Sabrina , Moysiyenko Ivan , Vynokurov Denys , Widmer Stefan , Dengler Jürgen
Published: June 2022

The inner-alpine dry valleys of the Swiss Alps are characterized by subcontinental climate, leading to many peculiarities in dry grassland species composition. Despite their well-known uniqueness, comprehensive studies on biodiversity patterns of the dry grasslands in these valleys were still missing. To close this gap, we sampled 161 10-m2 vegetation plots in the Rhône, Rhine and Inn valleys, recording vascular plants, terricolous bryophyte and lichen species, as well as environmental data. Additionally, we tested the scale-dependence of environmental drivers using 34 nested-plot series with seven grain sizes (0.0001–100 m2). We analysed the effects of environmental drivers related to productivity/stress, disturbance and within-plot heterogeneity on species richness. Mean species richness ranged from 2.3 species in 0.0001 m2 to 58.8 species in 100 m2. For all taxa combined, the most relevant drivers at the grain size of 10 m2 were southing (negative), litter (negative), mean annual precipitation (unimodal), gravel cover (negative), inclination (unimodal) and mean annual precipitation (unimodal). For vascular plants the pattern was similar, while bryophyte and lichen richness differed by the opposite relationship to mean annual precipitation as well as negative influences of mean herb layer height, grazing and mowing. The explained variance of the multiple regression model increased with grain size, with very low values for the smallest two grain sizes. While southing and litter had high importance for the fiver larger grain sizes, pH and gravel cover were particularly important at the intermediate grain sizes, and inclination and mean annual precipitation for the two largest grain sizes. The findings emphasize the importance of taxonomic group and grain size for patterns and drivers of species richness in vegetation, consistent with ecological theory. Differences in the diversity–environment relationships among the three taxonomic groups can partly be explained by asymmetric competition that leads to low bryophyte and lichen diversity where vascular plants do well and vice versa. The relatively low alpha diversity of vascular plants in dry grasslands in Swiss inner-alpine valleys compared to similar communities in other parts of the Palaearctic remains puzzling, especially because Swiss stands are often large and well-preserved.
Comparison of functional outcome and patient satisfaction between patients with socket prosthesis and patients treated with transcutaneous osseointegrated prosthetic systems (TOPS) after transfemoral amputation
Authors: Örgel Marcus , Schwarze Frederik , Graulich Tilman , Krettek Christian , Weidemann Friederike , Aschoff Horst-Heinrich , Winkelmann Marcel , Ranker Alexander
Published: June 2022

Purpose

The aim of this retrospective analysis was to investigate and evaluate differences in functional outcome and satisfaction of patients treated with a TOPS and patients using socket prosthesis after transfemoral amputation.

Methods

This retrospective comprehensive analysis included patients from a single hospital, and was conducted between February 2017 and December 2018. Overall n = 139 patients with prosthesis were included and divided into two comparable groups (socket- and TOPS group). Incomplete data sets were excluded. This led to n = 36 participants for the socket- and n = 33 for the TOPS group. Functional outcome and satisfaction were evaluated by Patient Reported Outcome Measures (PROMs). The used PROMs were: Questionnaire for Persons with a Transfemoral Amputation (Q-TFA), EQ5D-5L, Satisfaction with Prosthesis Questionnaire (SAT-PRO), Prosthesis Mobility Questionnaire (PMQ 2.0) and Functional Independence Measure (FIM).

Results

Significant results in favor of TOPS patients were identified for the EQ-5D 5L (p = 0.004), Q-TFA (p = 0.000), SAT-PRO (p = 0.000) and PMQ 2.0 (p = 0.000). For FIM, no statistical significance was found (p = 0.318).

Conclusion

In this study, transfemoral amputees treated with an osseointegrated prosthetic attachment (TOPS) showed significantly higher scores for mobility and satisfaction. This demonstrates the high potential of TOPS in the prosthetic treatment of patients with transfemoral amputation with regard to their functional abilities in daily life.
Do the determinants of foreign direct investment have a reverse and symmetric impact on foreign direct divestment?
Authors: Haug Alfred A. , Nguyen Anh T. N. , Owen P. Dorian
Published: June 2022

Negative foreign direct investment (divestment) between countries has received little attention in international macroeconomics. This is the first country-level study to investigate whether conventional drivers of bilateral foreign direct investment (FDI) have a reverse, but symmetric, impact on foreign direct divestment (FDD). Using bilateral negative and positive FDI data between 126 countries or territories, from 2005 to 2018, we find that conventional gravity variables that have statistically significant effects on FDI, such as host and source country GDP, distance, and source-country remoteness, have similar-signed effects on FDD, rather than opposite-signed effects. Formal testing of whether coefficients on the determinants of the absolute value of divestment are equal but opposite signed to those for investment rejects this hypothesis. The view that what may lead to more FDI may impede FDD is not supported by our empirical findings.
Adaptive perceptual responses to asymmetric rotation for testing otolithic function
Authors: Faralli Mario , Pelliccia Chiara , Occhigrossi Chiara , Bruni Rosa , Frati Francesco , Ricci Giampietro , Pettorossi Vito Enrico
Published: June 2022

This study aimed to test the role of the otolithic system in self-motion perception by examining adaptive responses to asymmetric off-axis vertical rotation. Self-movement perception was examined after a conditioning procedure consisting of prolonged asymmetric sinusoidal yaw rotation of the head on a stationary body with hemicycle faster than the other hemicycle. This asymmetric velocity rotation results in a cumulative error in spatial self-motion perception in the upright position that persists over time. Head yaw rotation conditioning was performed in different head positions: in the upright position to activate semicircular canals and in the supine and prone positions to activate both semicircular canals and otoliths with the phase of otolithic stimulation reversed with respect to activation of the semicircular canals. The asymmetric conditioning influenced the cumulative error induced by four asymmetric cycles of whole-body vertical axis yaw rotation. The magnitude of this error depended on the orientation of the head during the conditioning. The error increased by 50% after upright position conditioning, by 100% in the supine position, and decreased by 30% in the prone position. The enhancement and reduction of the perceptual error are attributed to otolithic modulation because of gravity influence of the otoliths during the conditioning procedure in supine and prone positions. These findings indicate that asymmetric velocity otolithic activation induces adaptive perceptual errors such as those induced by semicircular canals alone, and this adaptation may be useful in testing dynamic otolithic perceptual responses under different conditions of vestibular dysfunction.
Upcycling of waste polyethylene and cement kiln dust to produce polymeric composite sheets using gamma irradiation
Authors: Khozemy Ehab E. , Radi H. , Mazied Nabila A.
Published: June 2022

Cement kiln dust (CKD) is a residue produced during the manufacture of cement that contains hazardous solid waste of high toxicity that affects the environment and public health. In this study, the possibility of using CKD as a filler in the plastic and rubber industry was studied. The effect of CKD concentration and gamma irradiation dose on the mechanical and physico-chemical properties of the composite containing waste polyethylene/devulcanized rubber/EPDM rubber (named blank) was investigated. Different concentrations of CKD, namely 10, 15, 20, and 30 phr (part per hundred part of composite), were used. The results indicated that this composite (blended with CKD) properties were improved. The most significant improvement was achieved by using CKD concentration of 20 phr at the dose of 100 kGy of gamma irradiation. These findings were demonstrated by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and thermogravimetric analysis.

Graphical abstract
Two-level method part-scale thermal analysis of laser powder bed fusion additive manufacturing
Authors: Carraturo Massimo , Viguerie Alex , Reali Alessandro , Auricchio Ferdinando
Published: June 2022

Numerical simulations of a complete laser powder bed fusion (LPBF) additive manufacturing (AM) process are extremely challenging, or even impossible, to achieve without a radical model reduction of the complex physical phenomena occurring during the process. However, even when we adopt a reduced model with simplified physics, the complex geometries of parts usually produced by the LPBF AM processes make this kind of analysis computationally expensive. In fact, small geometrical features—which might be generated when the part is designed following the principle of the so-called design for AM, for instance, by means of topology optimization procedures—often require complex conformal meshes. Immersed boundary methods offer an alternative to deal with this kind of complexity, without requiring complicated meshing strategies. The two-level method lies within this family of numerical methods and presents a flexible tool to deal with multi-scale problems. In this contribution, we apply a modified version of the recently introduced two-level method to part-scale thermal analysis of LPBF manufactured components. We first validate the proposed part-scale model with respect to experimental measurements from the literature. Then, we apply the presented numerical framework to simulate a complete LPBF process of a topologically optimized structure, showing the capability of the method to easily deal with complex geometrical features.
Endoscopic transcanal management of incus long process defects: rebridging with bone cement versus incus interposition
Authors: Moneir Waleed , Salem Mohammed Abdelbadie , Hemdan Ahmed
Published: June 2022

Objectives

to compare hearing outcomes between endoscopic transcanal rebridging with bone cement and endoscopic transcanal incus interposition in patients with incus long process defects secondary to chronic suppurative otitis media (inactive mucosal type).

Methods

This retrospective study was performed on 83 ears of 83 consecutive patients with incus long process defects secondary to chronic suppurative otitis media (inactive mucosal type). According to the extent of incus long process erosion and subsequent ossiculoplasty technique, patients were divided into 2 groups. Patients in group 1 had erosion involving up to two thirds of the length of the incus long process and underwent endoscopic transcanal rebridging with bone cement. Patients in group 2 had erosion involving more than two thirds of the length of the incus long process and underwent endoscopic transcanal incus interposition.

Results

Hearing gain (mean ± standard deviation) was 21.39 ± 2.15 dB in group 1 and 19.71 ± 6.12 dB in group 2. A significantly greater hearing gain was achieved in bone cement group than in incus interposition group (P value < 0.001). Successful hearing outcome (post-operative air bone gap closure within 20 dB) was achieved in 81.6% and 71.1% of patients of group 1 and group 2 respectively.

Conclusion

Endoscopic transcanal rebridging with bone cement offers greater hearing gain than endoscopic transcanal incus interposition. The two techniques remain reliable and cost-effective techniques in management of patients with incus long process defects. The main limitation of this study was the short follow-up period. Further studies with relatively long-term follow-up are strongly recommended.
Long-lived dacitic magmatic systems and recharge dynamics in the Jemez Mountains volcanic field, western USA
Authors: Wu Jie , Rowe Michael C. , Cronin Shane J. , Wolff John A. , Fu Bin
Published: June 2022

We examine the connected history of dacite-dominant volcanic rocks of the Tschicoma Formation, erupted between 5.5 and 2 Ma from the Jemez Mountains volcanic field, western USA. Zircon samples from two separate eruptions have continuous SHRIMP U–Pb age spectra spanning 0.84–1.08 Myr duration (3.12–3.96 Ma and 3.50–4.58 Ma, respectively), following an episode of zircon crystallization 0.28–0.50 Myr earlier (at 4.46 Ma and 4.86 Ma, respectively). Zircon chemical variations, as well as ubiquitous resorption textures that commonly show large core-rim age differences (up to 720–740 kyr), suggest that they grew in separate melt lenses. Zircons were likely stored at near-solidus or even sub-solidus conditions after crystallization, but may have been reactivated in response to at least four major magma recharge events every 300–400 kyr and smaller events in between. A cycle of zircon dissolution (from heating), recrystallization (during cooling), and storage repeated in different locations in the Tschicoma mush system throughout its lifespan; each recharge-induced heating stage may last for several hundred to more than a thousand years based on calculations of zircon dissolution. We envisage the melt lenses to be distributed in a crystal mush zone, coalescing into a single magma batch as magma recharge occurs shortly before eruption. Once active, increasing magma supply rates may trigger large-scale partial melting of the pre-existing mush and caldera-forming eruptions.
An efficient and portable solar cell defect detection system
Authors: El-Rashidy Mohamed A.
Published: June 2022

The photovoltaic (PV) system industry is continuously developing around the world due to the high energy demand, even though the primary current energy source is fossil fuels, which are a limited source and other sources are very expensive. Solar cell defects are a major reason for PV system efficiency degradation, which causes disturbance or interruption of the generated electric current. In this study, a novel system for discovering solar cell defects is proposed, which is compatible with portable and low computational power devices. It is based on K-means, MobileNetV2 and linear discriminant algorithms to cluster solar cell images and develop a detection model for each constructed cluster. It can extract the distinct features between defective and nondefective solar cell clusters and overcome the confusion between different cell shapes. The proposed system was assessed using a benchmark dataset of electroluminescence images. The results demonstrate that it achieved the highest accuracy at a substantial rate compared to recent studies.
Limit profiles for singularly perturbed Choquard equations with local repulsion
Authors: Liu Zeng , Moroz Vitaly
Published: June 2022

We study Choquard type equation of the form where $$N\ge 3$$

N
≥
3

, $$I_\alpha $$

I
α

is the Riesz potential with $$\alpha \in (0,N)$$

α
∈
(
0
,
N
)

, $$p>1$$

p
>
1

, $$q>2$$

q
>
2

and $$\varepsilon \ge 0$$

ε
≥
0

. Equations of this type describe collective behaviour of self-interacting many-body systems. The nonlocal nonlinear term represents long-range attraction while the local nonlinear term represents short-range repulsion. In the first part of the paper for a nearly optimal range of parameters we prove the existence and study regularity and qualitative properties of positive groundstates of $$(P_0)$$

(

P
0

)

and of $$(P_\varepsilon )$$

(

P
ε

)

with $$\varepsilon >0$$

ε
>
0

. We also study the existence of a compactly supported groundstate for an integral Thomas–Fermi type equation associated to $$(P_{\varepsilon })$$

(

P
ε

)

. In the second part of the paper, for $$\varepsilon \rightarrow 0$$

ε
→
0

we identify six different asymptotic regimes and provide a characterisation of the limit profiles of the groundstates of $$(P_\varepsilon )$$

(

P
ε

)

in each of the regimes. We also outline three different asymptotic regimes in the case $$\varepsilon \rightarrow \infty $$

ε
→
∞

. In one of the asymptotic regimes positive groundstates of $$(P_\varepsilon )$$

(

P
ε

)

converge to a compactly supported Thomas–Fermi limit profile. This is a new and purely nonlocal phenomenon that can not be observed in the local prototype case of $$(P_\varepsilon )$$

(

P
ε

)

with $$\alpha =0$$

α
=
0

. In particular, this provides a justification for the Thomas–Fermi approximation in astrophysical models of self-gravitating Bose–Einstein condensate.
New CA-ID-TIMS U–Pb zircon ages for the Altenberg–Teplice Volcanic Complex (ATVC) document discrete and coeval pulses of Variscan magmatic activity in the Eastern Erzgebirge (Eastern Variscan Belt)
Authors: Tichomirowa M. , Käßner A. , Repstock A. , Weber S. , Gerdes A. , Whitehouse M.
Published: June 2022

The Altenberg–Teplice Volcanic Complex (ATVC) is a large ~ NNW–SSE trending volcano-plutonic system in the southern part of the Eastern Erzgebirge (northern Bohemian Massif, south-eastern Germany and northern Czech Republic). This study presents high precision U–Pb CA-ID-TIMS zircon ages for the pre-caldera volcano-sedimentary Schönfeld–Altenberg Complex and various rocks of the caldera stage: the Teplice rhyolite, the microgranite ring dyke, and the Sayda-Berggießhübel dyke swarm. These data revealed a prolonged time gap of ca. 7–8 Myr between the pre-caldera stage (Schönfeld–Altenberg Complex) and the climactic caldera stage. The volcanic rocks of the Schönfeld–Altenberg Complex represent the earliest volcanic activity in the Erzgebirge and central Europe at ca. 322 Ma. The subsequent Teplice rhyolite was formed during a relatively short time interval of only 1–2 Myr (314–313 Ma). During the same time interval (314–313 Ma), the microgranite ring dyke intruded at the rim of the caldera structure. In addition, one dyke of the Sayda-Berggiesshübel dyke swarm was dated at ca. 314 Ma, while another yielded a younger age (ca. 311 Ma). These data confirm the close genetic and temporal relationship of the Teplice rhyolite, the microgranite ring dyke, and (at least part of) the Sayda-Berggießhübel dyke swarm. Remarkably, the caldera formation in the south of the Eastern Erzgebirge (caldera stage of ATVC: 314–313 Ma) and that in the north (Tharandt Forest caldera: 314–312 Ma) occurred during the same time. These data document a large ~ 60 km NNW–SSE trending magmatic system in the whole Eastern Erzgebirge. For the first time, Hf-O-isotope zircon data was acquired on the ring dyke from the ATVC rocks to better characterize its possible sources. The homogeneous Hf-O-isotope zircon data from the microgranite ring dyke require preceding homogenization of basement rocks. Some small-scale melts that were produced during Variscan amphibolite-facies metamorphism show similar Hf-O-isotope characteristics and can therefore be considered as the most probable source for the microgranite ring dyke melt. In addition, a second source with low oxygen isotope ratios (e.g. basic rocks) probably contributed to the melt and possibly triggered the climactic eruption of the Teplice rhyolite as well as the crystal-rich intrusion of the ring dyke.
Cystine reduces mitochondrial dysfunction in C2C12 myotubes under moderate oxidative stress induced by H2O2
Authors: Mizugaki Ami , Kato Hiroyuki , Takeda Tomoko , Inoue Yoshiko , Hasumura Mai , Hasegawa Tatsuya , Murakami Hitoshi
Published: June 2022

Moderate oxidative stress induces temporal impairment in mitochondrial ATP production. As glutathione (GSH) content is reduced to eliminate oxidative stress by oxidation–reduction reaction, intracellular GSH content is crucial for maintaining mitochondrial function under oxidative stress. GSH precursors such as N-acetyl cysteine (NAC) and cysteine are known to suppress oxidative stress based on the supply of cysteine residues being rate-limiting for GSH synthesis. However, it remains unclear whether cystine (Cys2) can suppress mitochondrial dysfunction under oxidative stress conditions. Therefore, we examined whether Cys2 could attenuate mitochondrial dysfunction under moderate oxidative stress without scavenging reactive oxygen species (ROS) in the medium. C2C12 myotubes were incubated for 120 min in a Cys2-supplemented medium and subsequently exposed to hydrogen peroxide (H2O2). Heme oxygenase-1 (HO-1) gene expression, intracellular cysteine and GSH content, intracellular ATP level, and maximal mitochondrial respiration were assessed. Cys2 treatment significantly increased GSH content in a dose-dependent manner under oxidative stress. Cys2 treatment significantly decreased HO-1 expression induced by H2O2 exposure. In addition, maximal mitochondrial respiration rate was decreased by H2O2 exposure, but improved by Cys2 treatment. In conclusion, Cys2 treatment mitigates oxidative stress-induced mitochondrial dysfunction by maintaining GSH content under moderate oxidative stress without scavenging ROS in the medium.
Comment “On the role of data, statistics and decisions in a pandemic” by Jahn et al.
Authors: Höhle Michael
Published: June 2022

We comment the paper by Jahn et al. (On the role of data, statistics and decisions in a pandemic, 2022).
Who Cares More About the Environment, Those with an Intrinsic, an Extrinsic, a Quest, or an Atheistic Religious Orientation?: Investigating the Effect of Religious Ad Appeals on Attitudes Toward the Environment
Authors: Arli Denni , van Esch Patrick , Cui Yuanyuan
Published: June 2022

There is a consensus among scientists that climate change is an existing, growing, and human-made threat to our planet. The topic is a divisive issue worldwide, including among people of faith. Little research has focused on the relationship between (non)religious belief and climate change. Hence, in Studies 1 and 2, the authors explore the impact of religious/non-religious orientations: intrinsic (religion as an end in itself), extrinsic (religion as a means to an end), quest (a journey toward religious understanding), and non-religious orientation (i.e., atheistic) on consumer attitudes toward the environment, focusing on recycling advertisements with (non)religious cues. Further, in Study 3, we examine the underlying causal mechanism of environmental identity and the moderating effect of political views on consumers’ lack of belief in climate change. The results show that religious people are less committed to the environment and climate change and that atheism positively affects recycling and climate change identity. The findings offer practical implications in that advertising campaigns need to be endorsed by religious leaders and channeled within the confines of the religious institutions they represent.
The Role of Comorbid Mood Disorders in Cognitive Behavioral Therapy for Childhood Social Anxiety
Authors: Baartmans Jeanine M. D. , van Steensel F. J. A. , Klein Anke M. , Bögels Susan M.
Published: June 2022

Background

Children with a social anxiety disorder have worse treatment outcomes after Cognitive Behavior Therapy (CBT) than children with other anxiety disorders. Anxiety disorders and mood disorders are strongly related and especially social anxiety is related to high comorbidity rates with mood disorders. The aim of the study was to investigate how comorbid mood disorders are related to treatment outcomes after CBT and whether this can explain the worse outcomes for childhood social anxiety.

Methods

Participants were 152 referred clinically children (7–18 years) with either a social anxiety disorder (n = 52) or another anxiety disorder (n = 100) of whom 24.3% (n = 37) had a comorbid mood disorder. Child anxiety, internalizing symptoms, and quality of life were measured pre-treatment, post-treatment, 3 months and 1 year after treatment, using child and both parents’ report.

Results

Children with a primary social anxiety disorder more often had a comorbid mood disorder than children with another primary anxiety disorder. Children with a mood disorder had more severe anxiety problems before treatment. Comorbid mood disorders were related to greater anxiety reductions after treatment. The worse outcomes for children with a primary social anxiety disorder remained after controlling for comorbid mood disorders.

Conclusions

Findings stress the importance of future studies examining why the presence of a comorbid mood disorder is associated with greater anxiety reductions, and other factors that explain the worse treatment outcomes found for childhood social anxiety disorder.
Individualized passenger travel pattern multi-clustering based on graph regularized tensor latent dirichlet allocation
Authors: Li Ziyue , Yan Hao , Zhang Chen , Tsung Fugee
Published: June 2022

Individual passenger travel patterns have significant value in understanding passenger’s behavior, such as learning the hidden clusters of locations, time, and passengers. The learned clusters further enable commercially beneficial actions such as customized services, promotions, data-driven urban-use planning, peak hour discovery, and so on. However, the individualized passenger modeling is very challenging for the following reasons: 1) The individual passenger travel data are multi-dimensional spatiotemporal big data, including at least the origin, destination, and time dimensions; 2) Moreover, individualized passenger travel patterns usually depend on the external environment, such as the distances and functions of locations, which are ignored in most current works. This work proposes a multi-clustering model to learn the latent clusters along the multiple dimensions of Origin, Destination, Time, and eventually, Passenger (ODT-P). We develop a graph-regularized tensor Latent Dirichlet Allocation (LDA) model by first extending the traditional LDA model into a tensor version and then applies to individual travel data. Then, the external information of stations is formulated as semantic graphs and incorporated as the Laplacian regularizations; Furthermore, to improve the model scalability when dealing with massive data, an online stochastic learning method based on tensorized variational Expectation-Maximization algorithm is developed. Finally, a case study based on passengers in the Hong Kong metro system is conducted and demonstrates that a better clustering performance is achieved compared to state-of-the-arts with the improvement in point-wise mutual information index and algorithm convergence speed by a factor of two.
Corporate Social Responsibility in Temporary Agency Work: A Study of Restaurant Work in Finland
Authors: Cajander Niko , Reiman Arto , Kärkkäinen Riitta , Ylikarhi Kati
Published: June 2022

Ever expanding use of temporary agency work (TAW) easily attracts irresponsible actors on the business field in the hopes of making big profits and many narratives frame the emergence of contingent agency work as a positive evolution for employers and workers alike. The purpose of this study is to examine corporate social responsibility (CSR) in temporary agency work (TAW) in a small restaurant context to consider what kinds of challenges and opportunities can be identified from the perspectives of the workers, agencies, and user companies. A directed content analysis method was used on semi-structured interviews collected from restaurant workers, managers, and temporary agency experts, including a pension insurer and a labour union in Finland. To gain a new holistic understanding of this phenomenon, the pressures–disorganization–regulatory failure (PDR) model was used as a research framework. The CSR challenges identified were multifaceted, and conflicting views were common. A wide variety of CSR challenges and evolving strategies were found to avoid TAW regulations.
Distilling Livelihoods in Timor-Leste: Fataluku Ecologies of Practice
Authors: McWilliam Andrew
Published: June 2022

This paper builds on the celebrated monograph by James J. Fox, entitled, Harvest of the Palm: ecological change in eastern Indonesia (1977). Fox’s work drew attention to the contribution of sugar palm economies among the communities of south-eastern Indonesia. His study highlighted the contrasting ecologies of two orientations to livelihoods; one approach celebrates the benefits of low impact, sustainable lontar palm economies on the islands of Rote and Savu. The second approach foregrounds the destructive ‘slash and burn’ maize economies on the neighbouring Islands of Sumba and Timor. In this paper I offer a comparative, middle path perspective, focusing on the practice of sugar palm production and liquor distilling among Fataluku people of far-eastern Timor, but in a context of strong farming practices focused on seasonal maize and rice production. The strength of Fataluku traditions reinforces the role of the sugar palm as a vital component in a mixed economy of livelihood foraging and farming.
Impact of Co-channel Interference on the Performance of Cooperative Diversity Systems over α–μ Fading Channels
Authors: Jwaifel Arwa , Ghareeb Ibrahim , Do Tien
Published: June 2022

This paper investigates the impact of the co-channel interference on the performance of cooperative diversity networks. Selection combination technique is applied to the paths from multiple relay branches with no link directly connects the source and destination nodes. In addition, we derive the statistical characteristics of the upper bound of the SINR under the α–μ fading channel model, which then were used to derived the outage ($$P_{out}$$

P

out

) and error ($$P_b(e)$$

P
b

(
e
)

) probabilities for the cooperative network.
Financing the cultural and creative industries through crowdfunding: the role of national cultural dimensions and policies
Authors: Cicchiello Antonella Francesca , Gallo Serena , Monferrà Stefano
Published: June 2022

The trend towards digitalisation and technological innovation has reshaped the cultural and creative industries (CCIs) by changing the existing funding models and structures. The aim of this article is to explore the impact of cultural dimensions and policies on the adoption of reward-based crowdfunding as a new form of finance for firms in the CCIs in 12 different European countries during the 2015–2019 period. Our results show that national cultural dimensions and policies significantly affect the demand for cultural and creative crowdfunding. Specifically, the adoption of crowdfunding is broader in individualistic countries and in societies characterised by higher uncertainty avoidance, indulgence, short-term orientation, and lower levels of discrimination between genders. Furthermore, we find that the liberal welfare state model, characterised by limited government interference, market orientation, privatisation and a focus on self-responsibility, and the Southern European welfare model, based on a weak and inefficient state, increase the adoption of crowdfunding in the CCIs. The presence of a central ministry with cultural competence also increases the adoption of crowdfunding in the CCIs. Our findings show a U-shaped relationship between European grants and the demand for crowdfunding, mainly driven by a high or low European involvement within these sectors. We also identify a moderation effect of EU grants on the relationship between cultural dimensions and crowdfunding adoption, suggesting that the magnitude of this relationship depends on the amount of EU grants awarded in a specific country. As a robustness check, we run a set of Poisson regressions with correlated random effects (CREs), confirming our main results.
Learning-Based Non-rigid Video Depth Estimation Using Invariants to Generalized Bas-Relief Transformations
Authors: Pedone Matteo , Mostafa Abdelrahman , Heikkilä Janne
Published: June 2022

We present a method to locally reconstruct dense video depth maps of a non-rigidly deformable object directly from a video sequence acquired by a static orthographic camera. The estimation of depth is performed locally on spatiotemporal patches of the video, and then, the full depth video is recovered by combining them together. Since the geometric complexity of a local spatiotemporal patch of a deforming non-rigid object is often simple enough to be faithfully represented with a parametric model, we artificially generate a database of small deforming rectangular meshes rendered with different material properties and light conditions, along with their corresponding depth videos, and use such data to train a convolutional neural network. Since the database images are rendered with an orthographic camera model, linear deformations along the optical axis cannot be recovered from the training images. These are known in the literature as generalized bas-relief (GBR) transformations. We address this ambiguity problem by employing the invariant-theoretic normalization procedure in order to obtain complete invariants with respect to this group of transformations, and use them in the loss function of a neural network. We tested our method on both synthetic and Kinect data and experimentally observed that the reconstruction error is significantly lower than the one obtained using conventional non-rigid structure from motion approaches and state-of-the-art video depth estimation techniques.
Characterization of Novel Pathogenic Variants Leading to Caspase-8 Cleavage-Resistant RIPK1-Induced Autoinflammatory Syndrome
Authors: Tapiz i Reula Alfonso José , Cochino Alexis-Virgil , Martins Andreia L. , Angosto-Bazarra Diego , de Landazuri Iñaki Ortiz , Mensa-Vilaró Anna , Cabral Marta , Baroja-Mazo Alberto , Baños María C. , Lobato-Salinas Zulema , Fabregat Virginia , Plaza Susana , Yagüe Jordi , Casals Ferran , Oliva Baldomero , Figueiredo Antonio E. , Pelegrín Pablo , Aróstegui Juan I.
Published: June 2022

Pathogenic RIPK1 variants have been described as the cause of two different inborn errors of immunity. Biallelic loss-of-function variants cause the recessively inherited RIPK1 deficiency, while monoallelic variants impairing the caspase-8-mediated RIPK1 cleavage provoke a novel autoinflammatory disease (AID) called cleavage-resistant RIPK1-induced autoinflammatory (CRIA) syndrome. The aim of this study was to characterize the pathogenicity of two novel RIPK1 variants located at the cleavage site of caspase-8 detected in patients with dominantly-inherited, early-onset undefined AID. RIPK1 genotyping was performed by Sanger and next-generation sequencing. Clinical and analytical data were collected from medical charts, and in silico and in vitro assays were performed to evaluate the functional consequences. Genetic analyses identified two novel heterozygous RIPK1 variants at the caspase-8 cleavage site (p.Leu321Arg and p.Asp324Gly), which displayed a perfect intrafamilial phenotype-genotype segregation following a dominant inheritance pattern. Structural analyses suggested that these variants disrupt the normal RIPK1 structure, probably making it less accessible to and/or less cleavable by caspase-8. In vitro experiments confirmed that the p.Leu321Arg and p.Asp324Gly RIPK1 variants were resistant to caspase-8-mediated cleavage and induced a constitutive activation of necroptotic pathway in a similar manner that previously characterized RIPK1 variants causing CRIA syndrome. All these results strongly supported the pathogenicity of the two novel RIPK1 variants and the diagnosis of CRIA syndrome in all enrolled patients. Moreover, the evidences here collected expand the phenotypic and genetic diversity of this recently described AID, and provide interesting data about effectiveness of treatments that may benefit future patients.
Raman Spectroscopic Studies on Aqueous Sodium Formate Solutions and DFT Calculations
Authors: Rudolph Wolfram W. , Irmer Gert
Published: June 2022

NaHCOO(aq) and NaDCOO(aq) solutions were measured using Raman spectroscopy from dilute to concentrated solutions at 23 °C in water and heavy water from 50 to 4300 cm−1. A concentrated NaHCOO solution in heavy water was also measured. The Raman band parameters of HCOO−(aq) and DCOO−(aq) such as peak position, full width at half maximum (fwhm), integrated intensities, and depolarization values were determined. From the Raman spectroscopic data, it was concluded that the HCOO−(aq) and DCOO−(aq) symmetry is lower than C2v and probably as low as C1. In contrast to the solution state, $$\tt \normalsize \tt \normalsize {\text{HCO}}_{2}^{ - }$$

HCO

2

-

($$\tt \normalsize\tt\normalsize {\text{DCO}}_{2}^{ - }$$

DCO

2

-

) possess C2v symmetry in the gas phase and the DFT frequencies are given. DFT frequencies on a cluster of HCOO−/DCOO− with five implicit water molecules in the first sphere and placed in a polarizable continuum deviate not more than 1–2% from the measured ones. In the Raman spectrum in NaHCOO(aq), a band doublet at 2730 cm−1 and 2820 cm−1 occurs instead of a single band. The band doublet is due to Fermi resonance and results from the interaction of the overtone of the bending C–H mode, 2ν6 at 1382 cm−1 and ν1. The undisturbed C–H stretching mode, ν1 amounts to 2785 cm−1. In DCOO−(aq), a Fermi doublet was also observed at 2030.5 and 2116.5 cm−1, and the undisturbed wavenumber position amounts to 2101 cm−1. Furthermore, a solution of HCOO− in D2O showed slightly changed frequencies compared with the ones in water caused by the solvent isotope effect. Ion pairing between Na+ and HCOO− characterizes the Raman spectrum at high solute concentrations which are melt-like enabling direct contact between the ions. A NaHCOO solution with high amounts of LiCl added showed large perturbations of the HCOO− bands especially νsCOO− and δ COO− of HCOO−and revealed a stronger affinity of Li+ toward HCOO−. The ion pairs formed are most likely contact ion pairs between Li+ and HCOO− which have different stoichiometry of Li+: HCOO− such as 1:1 and 2:1.

Graphical Abstract