bluuebunny/crossref_metadata_2025_split huggingface dataset:
REM sleep stabilizes hypothalamic representation of feeding behavior
Authors: Oesch Lukas T. , Gazea Mary , Gent Thomas C. , Bandarabadi Mojtaba , Gutierrez Herrera Carolina , Adamantidis Antoine R. 
Published: July 2020

Significance
The lateral hypothalamus encompasses neural circuits that are highly active during feeding behavior and rapid eye movement sleep. Yet, it remains unclear whether these mutually exclusive behaviors share common neural populations. Here, we recorded and perturbed the activity of inhibitory neurons of the lateral hypothalamus (LH) across feeding behavior and sleep in freely behaving mice. We found that feeding is reliably encoded by specific patterns of neuron activity and that these patterns are reactivated during rapid eye movement sleep. Disrupting the activity of these inhibitory neurons specifically during rapid eye movement sleep decreased subsequent feeding behavior. These results suggest that rapid eye movement sleep stabilizes the hypothalamic representation of feeding behavior and modulates future food intake.
Narrative comprehension in simultaneously bilingual Finnish-Swedish and
monolingual Finnish children
Authors: Kunnari Sari , Välimaa Taina 
Published: July 2020

Abstract
We analysed narrative comprehension in 5-to-6-year-old
simultaneously bilingual Finnish-Swedish (n = 16) and
monolingual Finnish children (n = 16) by using the
Multilingual Assessment Instrument for Narratives (MAIN). We assessed mean
total narrative comprehension scores for bilingual children in both of their
languages and for monolingual children in Finnish, in both telling and
retelling conditions. We compared bilingual and monolingual children’s
narrative comprehension in Finnish and analysed the association between
comprehension and production. We also analysed the children’s ability to
answer different types of comprehension questions (i.e., questions probing
goals, internal state terms, and questions requiring both the ability to
draw inferences and to explain answers). We found no difference in total
narrative comprehension scores for bilingual children between their two
languages or between monolingual and bilingual children. This suggests
language-independent narrative comprehension. We found no difference in
narrative comprehension between telling and retelling and no correlation
between narrative comprehension and production. However, we found a clear
question type effect. Children performed better on questions probing goals
or internal state terms, but questions that required both inferencing and
ability to explain answers were very demanding. In conclusion, detailed
analysis of narrative comprehension provides knowledge on how children
create a coherent understanding of a story and utilise information in the
comprehension process.
Bilingualism effects in the narrative comprehension of children with
Developmental Language Disorder and L2-Greek
Authors: Peristeri Eleni , Andreou Maria , Tsimpli Ianthi Maria , Durrleman Stephanie 
Published: July 2020

Abstract
Narrative comprehension is a complex process that
requires the ability to integrate language information from the speech
signal with visual and contextual knowledge, while drawing also from social
cognition and executive functions. Although many studies have examined
narrative comprehension in typically-developing (TD) bilingual children and
suggested a bilingual advantage, evidence for bilingualism effects in the
narrative comprehension performance of children with Developmental Language
Disorder (DLD) is scant. This study explores narrative comprehension of
thirty 6 to 8 year old monolingual Greek and Albanian-Greek bilingual
children with DLD, along with two groups of age-matched TD monolingual Greek
and Albanian-Greek bilingual children. Children’s narrative comprehension
was assessed through the Greek versions of two stories (Cat
and Dog) which have been designed for retelling within the
Multilingual Assessment Instrument for Narratives tool (Gagarina, Klop, Kunnari, Tantele, Välimaa,
Balčiūnienė, Bohnacker, & Walters, 2012) of the COST Action
IS0804. The children’s language, Theory of Mind (ToM) and updating skills
were independently measured. Both groups with DLD had lower language and
executive function performance than TD children. Bilinguals with and without
DLD, however, scored higher in narrative comprehension than their TD and DLD
monolingual peers. Similarly, bilingual children with DLD outperformed their
monolingual peers with DLD on the ToM task. TD children’s narrative
comprehension was predicted by their language and executive function
performance, while DLD bilingual children’s narrative comprehension was
predicted by performance on the ToM task and their dominance in L2/Greek.
The overall results indicate advantages for bilingual children with DLD in
narrative comprehension and ToM, while suggesting a link between these
enhanced skills.
Comparisons of air kerma and absorbed dose to water standards in Co-60 radiation beams for radiotherapy
Authors: Kottler Christian , Steurer Andreas , Delaunay Frank , de Pooter Jacco , García Mulas Cristina , Mihailescu Liviu-Cristian 
Published: July 2020

The air kerma and absorbed dose to water standards for 60Co radiotherapy beams of 6 EURAMET NMIs were compared by circulating 2 transfer standards. The schedule for the measurements lasted from March 2013 to February 2015. The participants determined the calibration coefficients for the 2 transfer standards in both radiation quantities mentioned above. The comparison results are given in terms of air kerma and absorbed dose to water for both transfer standards as the ratio of the participants' calibration coefficients to the respective average values over all participants. Two participating NMIs, BEV and METAS, measured the transfer standards twice and three times, respectively. Hence, submeans were calculated and propagated as their respective repeated measurements are correlated.
The results are also linked to the BIPM.RI(I)-K1 and BIPM.RI(I)-K4 key comparisons through the linking laboratories BEV, LNE-LNHB and VSL for the air kerma and BEV, LNE-LNHB and METAS for the absorbed dose to water standards.

Main text

To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.
The final report has been peer-reviewed and approved for publication by the CCRI, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
SPECT with a multi-bang assumption on attenuation
Authors: Holman Sean , Richardson Philip 
Published: July 2020

Abstract
We consider the identification problem which arises in single photon emission computed tomography (SPECT) of joint reconstruction of both attenuation a and source density f. Assuming that a takes only finitely many values and

f
∈

C

c

1

(

R

2

)

we are able to characterise singularities appearing in the attenuated Radon transform R

a

f, which models SPECT data. Using this characterisation we prove that both a and f can be determined in some circumstances from R

a

f. We also propose a numerical algorithm to jointly compute a and f from R

a

f based on a weakly convex regularizer when a only takes values from a known finite list, and show that this algorithm performs well on some synthetic examples.
Effect of impurity radiation and helium particle confinement on tokamak–reactor plasma performance
Authors: Mavrin Aleksey A 
Published: July 2020

Abstract
In this paper two important matters for assessments the D–T plasma performance of future tokamak–reactors such as ITER and EU–DEMO projects are discussed. The first issue is the heat removal via the radiation of intrinsic and seeded impurities. The second is the helium particle confinement and ash removal. To study these issues, a simple numerical 0.5D-model is proposed. The impurity radiation in the tokamak high–temperature plasma is described by the coronal model. Coronal radiative cooling used rates are based on the tabulated data published in the recent works. Helium particle confinement and ash exhaust efficiency are determined by the variable parameter ρ* characterizing the ratio between the global helium particle confinement time

τ

H
e

∗

and the energy confinement time τ

E
. Such approach allows simultaneously obtaining solutions of the particle and energy balance equations in steady–state conditions, taking account of the effect of impurity radiation loss and ash poisoning. Using known energy confinement scaling τ

E
and design parameters of the ITER and EU–DEMO projects the particle and energy balance equations have been solved. For fixed values of impurities concentration and ratios ρ*, iso–curves of constant fusion power were obtained. These curves are similar to the well–known Plasma OPeration CONtours (POPCON). The POPCON curves are often used to study the operating points of tokamak–reactors. It is shown that for the ITER parameters there is a noticeable margin in the ratio ρ*. For the design parameters of the EU–DEMO project, the margin for ratio ρ* is very small, which casts doubt on the feasibility of the project in its current form (at least with regard to the EU–DEMO steady–state project). Further research in this area is required. The methods and results obtained in this paper can be used for further conceptual analysis of tokamak–reactors operating space.
High-performance YbTixOy/PbZr0.53Ti0.47O3 stacked gate dielectric for InGaZnO thin-film transistors
Authors: Pan Tung-Ming , Wang Hung-Chun , Her Jim-Long , Lou Bih-Show 
Published: July 2020

Abstract
In this paper, we developed a high-performance YbTixOy/PbZr0.53Ti0.47O3 (PZT) stacked gate dielectric for indium–gallium–zinc-oxide (InGaZnO) thin-film transistor (TFT) devices. X-ray diffraction, atomic force microscopy, and x-ray photoelectron spectroscopy were applied to examine the crystal structure, film morphology, and elemental composition of the YbTixOy and YbTixOy/PZT stacked films, respectively. Compared with the YbTixOy dielectric, the InGaZnO TFT device with the YbTixOy/PZT stacked dielectric exhibited excellent electrical characteristics in terms of a lower subthreshold swing of 77 mV decade−1, a higher Ion/Ioff current ratio of 3.8 × 109, a smaller threshold voltage of 80 mV, and a larger field-effect mobility of 21.2 cm2 V-s−1. These results are attributed to the YbTixOy/PZT stacked film possessing the high-κ value as well as the smooth interface between the channel layer and dielectric.
Comprehensive characterization of Gunn oscillations in In0.53Ga0.47As planar diodes
Authors: Lechaux Y , Íñiguez-de-la-Torre I , Novoa-López J A , García-Pérez Ó , Sánchez-Martín H , Millithaler J F , Vaquero D , Delgado-Notario J A , Clericò V , González T , Mateos J 
Published: July 2020

Abstract
In this work, In0.53Ga0.47As planar Gunn diodes specifically designed for providing oscillations at frequencies below 30 GHz have been fabricated and characterized. Different types of measurements were used to define a set of consistent methods for the characterization of the oscillations that can be extended to the sub-THz frequency range. First, negative differential resistance and a current drop are found in the I–V curve, indicating the potential presence of Gunn oscillations (GOs), which is then confirmed by means of a vector network analyzer, used to measure both the S
11 parameter and the noise power density. The onset of unstable GOs at applied voltages where the negative differential resistance is hardly visible in the I–V curve is evidenced by the observation of a noise bump at very low frequency for the same applied voltage range. Subsequently, the formation of stable oscillations with an almost constant frequency of 8.8 GHz is observed for voltages beyond the current drop. These results have been corroborated by measurements performed with a spectrum analyzer, which are fully consistent with the findings achieved by the other techniques, all of them applicable to Gunn diodes oscillating at much higher frequencies, even above 300 GHz.
From a continuous to a discrete time crystal in a dissipative atom-cavity system
Authors: Keßler Hans , Cosme Jayson G , Georges Christoph , Mathey Ludwig , Hemmerich Andreas 
Published: July 2020

Abstract
We propose the dynamical stabilization of a nonequilibrium order in a driven dissipative system comprised an atomic Bose–Einstein condensate inside a high finesse optical cavity, pumped with an optical standing wave operating in the regime of anomalous dispersion. When the amplitude of the pump field is modulated close to twice the characteristic limit-cycle frequency of the unmodulated system, a stable subharmonic response is found. The dynamical phase diagram shows that this subharmonic response occurs in a region expanded with respect to that where stable limit-cycle dynamics occurs for the unmodulated system. In turning on the modulation we tune the atom-cavity system from a continuous to a discrete time crystal.
Hadronic cross section of e+e−
annihilation at bottomonium energy region *
Authors: Dong Xiang-Kun , Mo Xiao-Hu , Wang Ping , Yuan Chang-Zheng 
Published: July 2020

Abstract
The Born cross section and dressed cross section of

and the total hadronic cross section in

annihilation in the bottomonium energy region are calculated based on the

values measured by the BaBar and Belle experiments. The data are used to calculate the vacuum polarization factors in the bottomonium energy region, and to determine the resonant parameters of the vector bottomonium(-like) states

,

, and

.
Radiative decay of

in a hadronic molecule picture *
Authors: Zhu HongQiang , Huang Yin 
Published: July 2020

Abstract
The baryon

with the quantum number

is considered as a molecular state composed of a

baryon and

meson. The partial decay widths of the

molecular state into

and

final states through hadronic loops are evaluated with the help of the effective Lagrangians. The partial widths for the

and

transitions are evaluated at 1.50–1.02 keV and 17.56–24.91 keV, respectively, which may be accessible for the LHCb. Based on our results, we argue that an experimental determination of the radiative decay width of

is important for the understanding of its intrinsic properties.
Identifying hidden charm pentaquark signal from non-resonant background in electron–proton scattering *
Authors: Yang Zhi , Cao Xu , Liang Yu-Tie , Wu Jia-Jun 
Published: July 2020

Abstract
In this study, we analyze the electroproduction of the LHCb pentaquark states with the assumption that they are resonant states. Our main concern is to investigate the final state distribution in the phase space to extract a feeble pentaquark signal from a large non-resonant background. The results indicate that the signal to background ratio will increase significantly with a proper kinematic cut, which will be beneficial for future experimental analysis.
Isospin dependence of projectile fragmentation at hundreds of MeV/u *
Authors: Su Jun , Zhu Long , Guo Chenchen , Zhang Feng-Shou 
Published: July 2020

Abstract
By modeling the fragmentation process using a dynamic model and permitting only evaporation in the statistical code, the main features of a projectile fragmentation at 600 MeV/u were considered in our previous study [Phys. Rev. C, 98: 014610 (2018)]. In this study, we extend this to the isospin dependence of a projectile fragmentation at several hundreds of MeV/u. We searched for isospin observables related to the isospin fractionation to extract the symmetry energy, and found that at the pre-equilibrium stage of the collisions an isospin diffusion will take place and affect the isospin of the final fragments. The isospin fractionation plays a part during the fragmenting stage. Compared to the soft symmetry energy, the stiff symmetry energy provides a smaller repulsive force for neutrons and an attractive force for the protons in a neutron-rich system at a subnormal density, and hence causes a smaller isospin asymmetry of the gas phase, leaving a more neutron-rich liquid phase. An observable robust isospin is proposed to extract the slope of the symmetry energy at normal density based on the isospin dependence of the projectile fragmentation at hundreds of MeV/u.
The running curvaton *
Authors: Liu Lei-Hua , Xu Wu-Long 
Published: July 2020

Abstract
In this paper, we propose a homogeneous curvaton mechanism that operates during the preheating process and in which the effective mass is running (i.e., its potential consists of a coupling term and an exponential term whose contribution is subdominant thereto). This mechanism can be classified into either narrow resonance or broad resonance cases, with the spectral index of the curvaton consituting the deciding criteria. The inflationary potential is that of chaotic inflation (i.e., a quadratic potential), which could result in a smooth transition into the preheating process. The entropy perturbations are converted into curvature perturbations, which we validate using the

formalism. By neglecting the exponential term's contribution to the curvaton potential, we calculate the power spectrum

and the nonlinear non-Gaussian parameter

. Our calculations analytically show that these two observables are independent of the inflaton potential. Finally, when the curvaton decays (and the inflaton field vanishes), the exponential potential approaches a constant value similar to that of the cosmological constant, which may play the role of dark energy.
Subversion of conventional construction: Building 3D printing technology
Authors: Luo W J , Mao Z C , Lu H Z , Yang J , Ma X C , Xu L J 
Published: July 2020

Abstract
As a rapid prototyping technology, 3D printing technology has been successfully utilized in medical treatment, jewelry, precision parts manufacturing, aviation and other fields. Meanwhile, owing to its feature of energy saving and emission reduction, it is attached high importance to in recent years. However, due to the problems of printing equipment and materials, and evaluation standards, the research progress of building 3D printing technology is far from sufficing the practical demand of large-scale manufacture in the construction industry. This paper starts with an introduction to the classification and development history of building 3D printing technology, explains its current research and application status, and propose outlooks for the prospective development.
Irregular Concrete Structure Construction Technology of Cement Spraying for Bowl-shaped Steel Framework with External Suspended Mesh Attached
Authors: Ma Long , Xia Dongrui , Chen Fasheng , Guo Wenxu , Gao Xin 
Published: July 2020

Abstract
For the complex construction of a bowl-shaped concrete structure, this paper proposes a construction technology of cement spraying for steel formwork with external suspended mesh attached, which successfully solves the technical problem of construction of the hyperbolic non-load-bearing structure with a radius of 5250 mm at the entrance of sales office of Wanda Plaza in Jining of Ulanqab. The proposed method reduces the use of formwork, cuts construction period and cost, realizes green construction and has good economic and social benefits.
Study on Three-Dimension Design Management of Power Grid Projects Centered on Quality Improvement
Authors: Ning Wang , Peng Wu , Bingjun Zhao , Lin Xing , Suo Wang , Shuai Zhang , Yan Li , Yuan Hu 
Published: July 2020

Abstract
Based on the current status of transmission and transformation project design management, the concept of lean design is highly integrated with the means of three-dimension design so as to innovate the new mode for the full-process design of transmission and transformation project, as well as construct the three-dimension design of power grid project with the features of Southern Hebei Power Network. Through the standardization construction of three-dimension design technology, lean construction of design quality and profound application construction of engineering practice, it is able to unify the design standard, enhance the design quality, rebuild the business process and deepen the design practice. This article realize the precise development of budge, as well as reach the targets of strengthening the engineering intrinsic safety and obtaining the good economic benefit.
National Quality Infrastructure Supports Smart Grid Construction in China-Taking the State Grid as an Example
Authors: Liu Hui 
Published: July 2020

Abstract
The National Quality Infrastructure (NQI) plays an important role in technically supporting the construction of the smart grid. Taking the State Grid as an example, this paper analyzes the role of NQI in promoting and supporting UHV transmission projects, smart grid dispatching & control systems and new energy power generation in China. In the field of UHV transmission, the standard system supports the construction and industrial upgrading of UHV transmission projects, the testing system ensures the quality of engineering equipment, and the metering service ensures the accurate settlement of power generation, transmission and power supply. In the field of smart grid dispatching, NQI supports the successful research and development, all-round promotion and efficient operation of the D5000 System. In the field of new energy power generation, the technical standard system provides the basis for the grid-integrated system of new energy power generation. The improvement of testing capability has promoted the technological progress of the new energy industry. The certification of grid-integrated new energy has maintained the fairness and authority of the quality system.
Research on Indoor Environmental Performance of Green Office Buildings in Shanghai Based on Field Investigation
Authors: Yang J R , Sun Y C , Qiu X L , Zhang G J 
Published: July 2020

Abstract
In order to understand the indoor environmental performance of green buildings after operation, 12 green buildings in Shanghai were selected to carry out long-term continuous monitoring and field collection study, data was comparative analysed with relevant national standards. Results show that the indoor environmental compliance rate of the building is more than 75%, and the comfort zone of the temperature and humidity are wider than the standard. The compliance rate of the light environment is generally good. At the same time, similar research results of other cities in China were compared, and the causes of the results were analysed. Finally, based on the measured data, the optimized standard limits of some parameters were proposed.
Coupling coordination measurement of land use and air quality in Heilongjiang Province
Authors: Luo Jiaxin , Cui Jia , Liu Yanfang 
Published: July 2020

Abstract
The coordinated development of land use and atmospheric environment is the key link to promote the healthy operation of regional economy and society. The gray correlation TOPSIS model was used to comprehensively evaluate the land use levels and air quality of 12 prefecture-level cities in Heilongjiang Province from 2015 to 2018, and the spatial-temporal evolution characteristics of the coordinated development degree of the two cities are explored by using the coupling coordination degree model. The results show that: The land use efficiency and air quality in Heilongjiang Province both fluctuate and increase, during which no city has achieved the ideal synchronous development, and the lag of land use level is the main factor limiting the degree of coordination; The coupling degree of land use and atmospheric environment is relatively high. 91.67% of the cities are always in a high-level coupling stage with little change. The coordination relationship between land use and atmospheric environment is gradually optimized, and the trend of temporal change is “N” type, and the type of coordination transitions from mild imbalance to barely coordinated. In space, it shows the pattern characteristics of “high in the West and low in the East”. Daqing has the highest level of coordinated development, while Harbin and Hegang need to improve their coordination.