bluuebunny/crossref_metadata_2025_split huggingface dataset:
“We” in the EU: (De) legitimizing power relations and status
Authors: Beciu Camelia , Lazăr Mirela 
Published: January 2022

Abstract
The article analyzes how the leaders and the candidates of the main parties in Romania built a European field of
power and subject positions in the context of the 2019 European elections. We adopt the premise that the (re) positioning of these
politicians towards the EU is part of their ongoing strategies of (de) legitimization. In this respect, the study focuses on how
they assign themselves a “European authority” in relation to audiences through their positioning as actors in the field. On the
basis of a mainly critically discursive methodological framework, we analyze a corpus consisting of electoral messages on
Facebook. The research reveals the ways in which the political actors build claims, representations and positionings about the EU
through naturalizing (a) symmetric relations, statuses, and symbolic power hierarchies.
Lower impact forces but greater burden for the musculoskeletal system in running shoes with greater cushioning stiffness
Authors: Malisoux Laurent , Gette Paul , Backes Anne , Delattre Nicolas , Theisen Daniel 
Published: January 2022

ABSTRACTIn a recent randomised trial investigating running shoe cushioning, injury risk was greater in recreational runners who trained in the shoe version with greater cushioning stiffness (Stiff) compared to those using the Soft version. However, vertical impact peak force (VIPF) was lower in the Stiff version. To investigate further the mechanisms involved in the protective effect of greater cushioning, the present study used an intra‐subject design and analysed the differences in running kinematics and kinetics between the Stiff and Soft shoe versions on a subsample of 41 runners from the previous trial. Data were recorded in the two shoe conditions using an instrumented treadmill at 10 km.h−1. VIPF was confirmed to be lower in the Stiff version compared to the Soft version (1.39 ± 0.25 vs. 1.50 ± 0.25 BW, respectively; p = 0.009, d = 0.42), but not difference was observed in vertical loading rate (p = 0.255 and 0.897 for vertical average and instantaneous loading rate, respectively). Ankle eversion maximal velocity was not different (p = 0.099), but the Stiff version induced greater ankle negative work (−0.55 ± 0.09 vs. −0.52 ± 0.10 J.kg−1; p = 0.009, d = 0.32), maximal ankle negative power (−7.21 ± 1.90 vs. −6.96 ± 1.92 W.kg−1; p = 0.037, d = 0.13) and maximal hip extension moment (1.25 ± 0.32 vs.1.18 ± 0.30 N.m.kg−1; p = 0.009, d = 0.22). Our results suggest that the Stiff shoe version is related to increased mechanical burden for the musculoskeletal system, especially around the ankle joint.Trial registration: ClinicalTrials.gov identifier: NCT03115437.
A hybrid approach for the efficient computation of polycrystalline yield loci with the accuracy of the crystal plasticity finite element method
Authors: Biswas Abhishek , Kalidindi Surya R , Hartmaier Alexander 
Published: January 2022

Abstract
Direct experimental evaluation of the anisotropic yield locus (YL) of a given material, representing the zeros of the material’s yield function in the stress space, is arduous. It is much more practical to determine the YL by combining limited measurements of yield strengths with predictions from numerical models based on microstructural features such as the orientation distribution function (ODF; also referred to as the crystallographic texture). For the latter, several different strategies exist in the current literature. In this work, we develop and present a new hybrid method that combines the numerical efficiency and simplicity of the classical crystallographic yield locus (CYL) method with the accuracy of the computationally expensive crystal plasticity finite element method (CPFEM). The development of our hybrid approach is presented in two steps. In the first step, we demonstrate for diverse crystallographic textures that the proposed hybrid method is in good agreement with the shape of the predicted YL estimated by either CPFEM or experiments, even for pronounced plastic anisotropy. It is shown that the calibration of only two parameters of the CYL method with only two yield stresses for different load cases obtained from either CPFEM simulations or experiments produces a reliable computation of the polycrystal YL for diverse crystallographic textures. The accuracy of the hybrid approach is evaluated using the results from the previously established CPFEM method for the computation of the entire YL and also experiments. In the second step, the point cloud data of stress tensors on the YL predicted by the calibrated CYL method are interpolated within the deviatoric stress space by cubic splines such that a smooth yield function can be constructed. Since the produced YL from the hybrid approach is presented as a smooth function, this formulation can potentially be used as an anisotropic yield function for the standard continuum plasticity methods commonly used in finite element analysis.
The magnetic field dependent displacement effect and its correction in reference and relative dosimetry
Authors: Tekin Tuba , Blum Isabel , Delfs Björn , Schönfeld Ann-Britt , Poppe Björn , Looe Hui Khee 
Published: January 2022

Abstract

Objective. This study investigates the perturbation correction factors of air-filled ionization chambers regarding their depth and magnetic field dependence. Focus has been placed on the displacement or gradient correction factor

P

gr

.

Additionally, the shift of the effective point of measurement

P

eff

that can be applied to account for the gradient effect has been compared between the cases with and without magnetic field. Approach. The perturbation correction factors have been simulated by stepwise modifications of the models of three ionization chambers (Farmer 30013, Semiflex 3D 31021 and PinPoint 3D 31022, all from PTW Freiburg). A 10 cm × 10 cm 6 MV photon beam perpendicular to the chamber’s axis was used. A 1.5 T magnetic field was aligned parallel to the chamber’s axis. The correction factors were determined between 0.4 and 20 cm depth. The shift of

P

eff

from the chamber’s reference point

P

ref

,

Δ

z

,

was determined by minimizing the variation of the ratio between dose-to-water

D

w

z

r

e

f

+

Δ

z

and the dose-to-air

D
¯

a

i

r

z

r

e

f

along the depth. Main Results. The perturbation correction factors with and without magnetic field are depth dependent in the build-up region but can be considered as constant beyond the depth of dose maximum. Additionally, the correction factors are modified by the magnetic field.

P

gr

at the reference depth is found to be larger in 1.5 T magnetic field than in the magnetic field free case, where an increase of up to 1% is observed for the largest chamber (Farmer 30013). The magnitude of

Δ

z

for all chambers decreases by 40% in a 1.5 T magnetic field with the sign of

Δ

z

remains negative. Significance. In reference dosimetry, the change of

P

gr

in a magnetic field can be corrected by applying the magnetic field correction factor

k

Q

msr

B

when the chamber is positioned with its

P

ref

at the depth of measurement. However, due to the depth dependence of the perturbation factors, it is more convenient to apply the

Δ

z

-shift during chamber positioning in relative dosimetry.
Two-telescope-based solar seeing profile measurement simulation
Authors: Wang Zi-Yue , Ren De-Qing , Saadetian Raffi 
Published: January 2022

Abstract
Measurements of the daytime seeing profile of the atmospheric turbulence are crucial for evaluating a solar astronomical site so that research on the profile of the atmospheric turbulence as a function of altitude

C
n
2

(

h
n

)

becomes more and more critical for performance estimation and optimization of future adaptive optics (AO) including the multi-conjugate adaptive optics (MCAO) systems. Recently, the S-DIMM+ method has been successfully used to measure daytime turbulence profiles above the New Solar Telescope (NST) on Big Bear Lake. However, such techniques are limited by the requirement of using a large solar telescope which is not realistic for a new potential astronomical site. Meanwhile, the A-MASP (advanced multiple-aperture seeing profiler) method is more portable and has been proved that can reliably retrieve the seeing profile up to 16 km with the Dunn Solar Telescope (DST) on the National Solar Observatory (Townson, Kellerer et al.). But the turbulence of the ground layer is calculated by combining A-MASP and S-DIMM+ (Solar Differential Image Motion Monitor+) due to the limitation of the two-individual-telescopes structure. To solve these problems, we introduce the two-telescope seeing profiler (TTSP) which consists of two portable individual telescopes. Numerical simulations have been conducted to evaluate the performance of TTSP. We find our TTSP can effectively retrieve seeing profiles of four turbulence layers with a relative error of less than 4% and is dependable for actual seeing measurement.
Preliminary analysis on the noise characteristics of MWISP data
Authors: Cai Jia-Jun , Yang Ji , Zheng Sheng , Yan Qing-Zeng , Zhang Shao-Bo , Zhou Xin , Feng Hao-Ran 
Published: January 2022

Abstract
Noise is a significant part within a millimeter-wave molecular line datacube. Analyzing the noise improves our understanding of noise characteristics, and further contributes to scientific discoveries. We measure the noise level of a single datacube from MWISP and perform statistical analyses. We identified major factors which increase the noise level of a single datacube, including bad channels, edge effects, baseline distortion and line contamination. Cleaning algorithms are applied to remove or reduce these noise components. As a result, we obtained the cleaned datacube in which noise follows a positively skewed normal distribution. We further analyzed the noise structure distribution of a 3D mosaicked datacube in the range

l
=

40

⋅
°

7

to

43

⋅
°

3

and

b
=
−

2
⋅
°

3

to

0
⋅
°

3

and found that noise in the final mosaicked datacube is mainly characterized by noise fluctuation among the cells.
Fabrication of large UV transmission blazed gratings for slitless spectral sky survey
Authors: Chen Zhi-Wen , Cai Mao-Qi , Qiu Ke-Qiang , Wang Ya-Nan , Chen Huo-Yao , Liu Zheng-Kun , Liu Ying , Hong Yi-Lin , Jiang Hai-Jiao , Hu Zhong-Wen 
Published: January 2022

Abstract
Slitless spectral sky survey is a critical direction of international astronomical research. Compared with ground-based sky survey, space-based sky survey can achieve full-band observation, and its imaging quality and resolution capability are restricted by the efficiency and size of dispersive elements. Transmission blazed gratings are often used as the dispersive elements in the UV band. Holographic interference lithography produces the photoresist mask of a grating, and the ion beam etching vertically transfers the pattern to the substrate to form the SiO2 mask of a grating. To reduce the effect of ion beam divergence on the uniformity of the groove shape, the grating mask is etched tilted by the ion beam passing through a narrow slit to obtain a blazed grating with consistent structural parameters. Moreover, two-dimensional scanning of the sample stage enables the etching of large-size samples. A UV transmission blazed grating with a linear density of 333 lines mm−1, a blazing angle of 11.8°, and a dimension of 99.2mm × 60.0mm × 6.0mm was successfully fabricated with an average diffraction efficiency of 66%, a PV diffraction wavefront of 0.169λ (λ = 632.8 nm) and low stray light.
Observational scalings testing modified gravity
Authors: Amekhyan Armine , Sargsyan Seda , Stepanian Arman 
Published: January 2022

Abstract
We consider different observational effects to test a modified gravity approach involving the cosmological constant in the common description of dark matter and dark energy.We obtain upper limits for the cosmological constant by studying the scaling relations for 12 nearby galaxy clusters, the radiated power from gravitational waves and the Tully-Fisher relation for super spiral galaxies. Our estimations reveal that, for all these cases, the upper limits for Λ are consistent with its actual value predicted by cosmological observations.
Charged stellar model with three layers
Authors: Lighuda Avirt S. , Sunzu Jefta M. , Maharaj Sunil D. , Mureithi Eunice W. 
Published: January 2022

Abstract
We establish new charged stellar models from the Einstein-Maxwell field equations for relativistic superdense objects
outfitted with three layers. The core layer is described by a linear equation of state (EoS) describing quark matter, while the intermediate layer is described by a Bose-Einstein condensate EoS for Bose-Einstein condensate matter and the envelope layers satisfying a quadratic EoS for the neutron fluid. We have specified a new choice of the electric field and one of the metric potentials. It is interesting to note that the choice of electric field in this model can be set to vanish and we can regain earlier neutral models. Plots generated depict that the matter variables, gravitational potentials and other physical conditions are consistent with astrophysical studies. The interior layers and exterior boundary are also matched.
Revisiting the X-ray emission of the asynchronous polar V1432 Aql
Authors: Wang Qi-Shan , Qian Sheng-Bang , Zhu Li-Ying 
Published: January 2022

Abstract
As the only eclipsing asynchronous polar, V1432 Aql provides an excellent laboratory to study the interaction between the accreted matter and the magnetic field. Here, we report an analysis of the X-ray data from the contemporaneous NuSTAR and Swift-XRT observations. The X-ray data present a profile with a low-intensity state for almost half an orbital period, a dip at 0.6 phase, and a peak at 0.75 phase, which suggests that there was only one accretion region during the observation and the claim is supported by the spectral analysis. The comparison with the previous data indicates that the X-ray data have an orbital modulation, as the case in BeppoSAX, rather than a spin one observed in ROSAT. We attribute the orbit and spin modulations to the different accretion geometries at work. The spectral analysis of the wide-band data presents a significant reflection effect, a commonly observed soft X-ray temperature, and the energy balance in V1432 Aql. Additionally, we obtained a low total accretion rate of 1.3 × 10−10
M
⊙ yr−1 and a high specific accretion rate of 3.8 g cm−2 s−1 which explains the strong reflection from the surface of the white dwarf. However, due to its complex emission, a more physical understanding of its accretion geometry is still outstanding.
Viscous holographic f(Q) cosmology with some versions of holographic dark energy with generalized cut-offs
Authors: Chakraborty Gargee , Chattopadhyay Surajit , Güdekli Ertan 
Published: January 2022

Abstract
The work reported in this paper demonstrates the cosmology of f(Q) gravity and the reconstruction of various associated parameters with different versions of holographic dark energy with generalized cut-offs, where Q = 6 H
2. The Universe is considered to be filled with viscous fluid characterized by a viscous pressure Π = – 3 H ξ, where

ξ
=

ξ
0

+

ξ
1

H
+

ξ
2

(

H
˙

+

H
2

)

and H is the Hubble parameter. Considering the power law form of expansion, we have derived the expression of f(Q) under a non-viscous holographic framework and it is then extended to viscous cosmological settings with extended generalized holographic Ricci dark energy. The forms of f(Q) for both the cases are found to be monotonically increasing functions of Q. In the viscous holographic framework, f(Q) is reconstructed as a function of cosmic time t and is found to stay at a positive level with Nojiri-Odintsov cut-off. In these cosmological settings, the slow roll parameters are computed and a scope of exit from inflation and quasi-exponential expansion are found to be available. Finally, it is observed that warm inflationary expansion can be obtained from this model.
New Massive Contact Twin Binary in a Radio-quiet H ii Region Associated with the M17 Complex
Authors: Yin Jia , Chen Zhiwei , Yao Yongqiang , Chen Jian , Li Bin , Jiang Zhibo 
Published: January 2022

Abstract
Early-B stars, much less energetic than O stars, may create an H ii region that appears as radio-quiet. We report the identification of new early-B stars associated with the radio-quiet H ii region G014.645–00.606 in the M17 complex. The radio-quiet H ii region G014.645–00.606 is adjacent to three radio-quiet WISE H ii region candidates. The ionizing sources of the radio-quiet H ii regions are expected to be later than B1V, given the sensitivity about 1–2 mJy of the MAGPIS 20 cm survey. The stars were first selected if their parallaxes of Gaia EDR3 match that of the 22 GHz H2O maser source within the same region. We used the color–magnitude diagram made from the Zwicky Transient Facility photometric catalog to select the candidates for massive stars because the intrinsic g − r colors of massive stars change little from B-type to O-type stars. Five stars lie in the areas of the color–magnitude diagram where either reddened massive stars or evolved post-main sequence stars of lower masses are commonly found. Three of the five stars, sources 1, 2, and 3, are located at the cavities of the three IR bubbles, and extended Hα emission is detected around the three IR bubbles. We suggest that sources 1, 2, and 3 are candidates for early-B stars associated with the radio-quiet region G014.645–00.606. Particularly, source 1 is an EW type eclipsing binary with a short period of 0.825 day, while source 2 is an EA type eclipsing binary with a short period of 0.919 day. The physical parameters of the two binary systems have been derived through the PHOEBE model. Source 1 is a twin binary of two stars with T
eff ≈ 23,500 K, and source 2 contains a hotter component (T
eff ≈ 20,100 K) and a cooler one (T
eff ≈ 15,500 K). The O − C values of source 1 show a trend of decline, implying that the period of the source is deceasing. Source 1 is likely a contact early-B twin binary, for which mass transfer might cause its orbit to shrink.
Spectral irradiance scale realization and uncertainty analysis based on a 14 mm diameter WC–C fixed point blackbody from 250 nm to 2500 nm
Authors: Dai Caihong , Wang Yanfei , Li Ling , Wu Zhifeng , Xie Yihang , Khlevnoy Boris , Grigoryeva Irina , He Shufang , Lin Yandong 
Published: January 2022

Abstract
Spectral irradiance scale in the wavelength range from 250 nm to 2500 nm was realized at National Institute of Metrology on the basis of a large area tungsten carbide–carbon (WC–C) high temperature fixed point blackbody, which is composed of a 14 mm diameter WC–C fixed point cell and a variable temperature blackbody BB3500MP as a furnace. A series of 1000 W FEL tungsten halogen lamps were used as transfer standards. The new spectral irradiance scale was compared with the scale based on a variable-temperature blackbody BB3500M, and the divergence between these two methods varied from −0.66% to 0.79% from 280 nm to 2100 nm. The measurement uncertainty of spectral irradiance scale based on fixed-point blackbody was analyzed, and the expanded uncertainty was estimated as 3.9% at 250 nm, 1.4% at 280 nm, 0.43% at 400 nm, 0.27% at 800 nm, 0.25% at 1000 nm, 0.62% at 1500 nm, 0.76% at 2000 nm, and 2.4% at 2500 nm respectively. In the range from 300 nm to 1000 nm the fixed-point scale was improved obviously: the uncertainty decreased by more than 25% compared to the uncertainty based on the variable temperature blackbody. Below 300 nm, the uncertainty became higher because the signal to noise ratio was poor. Above 1100 nm, the contribution of temperature measurement to the uncertainty of spectral irradiance decreases, therefore the uncertainties of two methods are almost at the same level. The fixed-point blackbody was also used to realize the correlated colour temperature and distribution temperature of a tungsten filament lamp, the deviation from the variable temperature blackbody method was −0.5 K and −2.9 K, respectively.
The effect of Soil properties on the Biological Diversity of Fungi in Soil University of Anbar.
Authors: Ali Wijdan Ahmed , Hussein Rahaf Haineed , Radef Wafaa Tali 
Published: January 2022

Abstract
Microorganisms are a varied collection of organisms that make up around 60% of the earth’s biomass. The ratio of fungal to plant species is estimated to be around 6 to 1. In order to extrapolate worldwide estimates of 1.5 million fungal species, this ratio is utilized. Because of the activity of soil organisms, soils are very complex systems with numerous components performing many roles. Soil microflora is essential for assessing soil conditions and encouraging plant development. Microorganisms are helpful in enhancing soil fertility because they participate in a variety of biochemical transformation and mineralization processes in soils. Organic matter in the soil that impacts the physical, chemical, and biological characteristics of the soil and serves as a complementary medium for biological processes and life support in the soil environment. Microbes have a very significant role in biodiversity. Organic matter in the soil that influences its physical, chemical, and biological properties and acts as a complimentary medium for biological activities and life support in the soil environment. Microbes play an important part in biodiversity. The study demonstrated the importance of pH and soil texture on the variety of soil fungus species. Three clones were grown on PDA at 28 C° (7 clays) as Aspergillus sp., Penicillium sp., and Fusarium sp.
Vortex heat transfer enhancement by energy-efficient structured plates with zigzag grooves for micro- and macro-scale energy and electronic devices
Authors: Isaev S A , Leontiev A I , Nikushchenko D V , Kong D , Chung K M , Sudakov A G 
Published: January 2022

Abstract
An energy-efficient flat surface is formed when applying single-row cross-flow zigzag grooves (VVVVVV) in a dense arrangement. Convective heat transfer is considered in turbulent flow around a longitudinal fragment of a plate with a length of 40 and a width of 4 with a package of 14 singlerow inclined backslash(\)-shaped grooves with symmetry conditions at the lateral boundaries. The width of the grooves is 1, the depth is 0.25, the edge rounding radius is 0.2, the angles of inclination are 30°, 45°, 50° and 60°, the pitch is 2.4, the Reynolds number is 104, and the thickness of the incoming boundary layer is 0.175. The phenomenon of anomalous enhancement of the separation flow and heat transfer in zigzag grooves and acceleration of the wall flow discovered in inclined oval-trench dimples has been confirmed.
Comparative analysis of characteristics of liquid fuel combustion for various designs of oil-steam burners
Authors: Anufriev I S , Kopyev E P 
Published: January 2022

Abstract
The paper presents a comparative analysis of experimental data on combustion of liquid hydrocarbon fuels in the presence of superheated steam in two designs of the developed burners. By the example of diesel fuel burnt in a spray burner it is shown that lower values of nitrogen oxide contents in the exhaust gases are achieved in comparison with an evaporative burner. At that, the content of carbon monoxide in some regimes is lower for the evaporative burner. The regimes with the minimum content of toxic combustion products are found for both designs of the burners.