bluuebunny/crossref_metadata_2025_split huggingface dataset:
Usability of augmented reality technology in tele-mentorship for managing clinical scenarios—A study protocol
Authors: Bui Dung T. , Barnett Tony , Hoang Ha , Chinthammit Winyu 
Published: March 2022

Background
Tele-mentorship is considered to offer a solution to training and providing professional assistance at a distance. Tele-mentoring is a method in which a mentor interactively guides a mentee at a different geographic location in real time using a technological communication device. During a healthcare procedure, tele-mentoring can support a medical expert, remote from the treatment site, to guide a less-experienced practitioner at a different geographic location. Augmented Reality (AR) technology has been incorporated in tele-mentoring systems in healthcare environments globally. However, evidence is absent about the usability of AR technology in tele-mentoring clinical healthcare professionals in managing clinical scenarios.

Aim
This study aims to evaluate the usability of Augmented Reality (AR) technology in tele-mentorship for managing clinical scenarios.

Methods
This study uses a quasi-experimental design. Four experienced health professionals and a minimum of twelve novice health practitioners will be recruited for the roles of mentors and mentees, respectively. In the experiment, each mentee wearing the AR headset performs a maximum of four different clinical scenarios in a simulated learning environment. A mentor who stays in a separate room and uses a laptop will provide the mentee remote instruction and guidance following the standard protocols for the treatment proposed for each scenario. The scenarios of Acute Coronary Syndrome, Acute Myocardial Infarction, Pneumonia Severe Reaction to Antibiotics, and Hypoglycaemic Emergency are selected, and the corresponding clinical management protocols developed. Outcome measures include the mentors and mentees’ perception of the AR’s usability, mentorship effectiveness, and the mentees’ self-confidence and skill performance.

Ethics
The protocol was approved by the Tasmania Health and Medical Human Research Ethics Committee (Project ID: 23343). The complete pre-registration of our study can be found at https://osf.io/q8c3u/.
LncRNA-en adierazpen aldakorrak haurren leuzemia linfoblastiko akutuan dituen inplikazioak
Authors: Telleria Zufiaur Jaione , Illarregi Unai , López López Elixabet , Bilbao Aldaiturriaga Nerea , Gutierrez Camino Angela , Martín Guerrero Idoia 
Published: March 2022

Haurren leuzemia linfoblastiko akutua (LLA) minbizi pediatrikorik ohikoena da eta heriotza kausa nagusia 20 urte baino gutxiagoko minbizidun gaixoen artean. Aurrerapen teknologikoei esker sailkapen zehaztasuna eta sendatze-tasa hobetu diren arren, oraindik ere asko dira birgaixotzen diren pazienteak. Hori dela eta, pazienteen estratifikazio eta tratamendu espezifikoagoen beharra azaleratu da. LLA minbizi oso heterogeneoa da eta azpitalde ezberdin ugari daude. Oraintsu, pazienteen estratifikazioa egiteko RNA ez-kodetzaileetan jarri da arreta, esaterako, RNA luze ez-kodetzaileetan (lncRNA). Molekula horiek proteinak kodetzen ez dituzten 200 nukleotido baino gehiagoko molekula erribonukleikoak dira, eta frogatu da funtzio erregulatzaile garrantzitsua dutela hainbat prozesu biologikotan, tartean, hematopoiesian. Azken urteetan ugariak izan dira lncRNA-en adierazpen aldakorra LLA pediatrikoan aztertu dituzten ikerketak. Horietan, sekuentziazio edo array bidezko genoma osoko analisiak eta RT-qPCR bidezko lncRNA zehatzen adierazpena aztertuz, minbizi honen diagnosian, azpitalde ezberdinen sailkapenean, pronostikoan eta tratamenduan duten adierazpen patroi aldakorra ikertu dute. Hala, zenbait kasutan ondorioztatu da lncRNA-k erlazionatuta daudela leuzemia-zelulen proliferazio edo apoptosiarekin, birgaixotzeekin edo tratamenduekiko erresistentziarekin. Hori dela eta, dugun informazioa oraindik ere mugatua izan arren, lncRNA-ek mekanismo molekularretan dituzten funtzioak ezagutzea ezinbestekoa izango da, etorkizunean LLA gaixoen estratifikazio zehatza lortzeko eta tratamendu-itu berriak identifikatzeko.
The Cyclicality of Immigrant Wages and Labour Market Flows: Evidence from Spain
Authors: Gálvez-Iniesta Ismael 
Published: March 2022

Abstract
This article studies the responses of real wages and labour market flows of immigrants in Spain for the period between 1999 and 2019. By using Labour Force Survey microdata, I examine the cyclicality of job-finding and job-separation rates for immigrants and natives over the long Spanish economic expansion and the sharp contraction. During the expansion, 1999–2007, the job-finding rate was higher for immigrants than for natives, but both rates converged to a lower level after the Great Recession took place in 2008. I also find that the impact of the crisis on the job-separation rate was more than three times as high for immigrants than for natives. By using longitudinal social security data, I find that wage cyclicality is higher for immigrants than for natives: a one percentage point increase in the unemployment rate is associated with a 0.61 and 0.85% drop in real wages for natives and immigrants, respectively. However, these differences only occur among low-tenure workers. This study provides novel empirical evidence to enrich macroeconomic theories on the interaction of economic cycles and the impact of immigration.
On the subring of special cycles
Authors: Kudla Stephen S. 
Published: March 2022

Abstract
By old results with Millson, the generating series for the cohomology classes of special cycles on orthogonal Shimura varieties over a totally real field are Hilbert–Siegel modular forms. These forms arise via theta series. Using this result and the Siegel–Weil formula, we show that the products in the subring of cohomology generated by the special cycles are controlled by the Fourier coefficients of triple pullbacks of certain Siegel–Eisenstein series. As a consequence, there are comparison isomorphisms between special subrings for different Shimura varieties. In the case in which the signature of the quadratic space V is

(
m
,
2
)

(m,2)

at an even number

d
+

d_{+}

of archimedean places, the comparison gives a “combinatorial model” for the special cycle ring in terms of the associated totally positive definite space.
QuarantivityVR: Supporting Self-Embodiment for Non-HMD Users in Asymmetric Social VR Games
Authors: Yassien Amal , Soliman Mohamed Ahmed , Abdennadher Slim 
Published: March 2022

Abstract
The prevalence of immersive head-mounted display (HMD) social virtual reality (VR) applications introduced asymmetric interaction among users within the virtual environment (VE). Therefore, researchers opted for (1) exploring the asymmetric social VR interaction dynamics in only co-located setups, (2) assigning interdependent roles to both HMD and non-HMD users, and (3) representing non-HMD users as abstract avatars in the VE. Therefore, we investigate the feasibility of supporting Self-Embodiment in an asymmetric VR interaction mode in a remote setup. To this end, we designed an asymmetric social VR game, QuarantivityVR, to (1) support sense of self-embodiment for non-HMD users in a remote setting by representing them as realistic full-body avatars within the VE, (2) augment visual-motor synchrony for the non-HMD users to increase their sense of agency and presence by detecting their motion through Kinect sensor and laptop’s webcam. During the game, each player performs three activities in succession, namely movie-guessing, spelling-bee, and answering mathematical questions. We believe that our work will act as a step towards the inclusion of a wide spectrum of users that can not afford full immersion and will aid researchers in creating enjoyable interactions for both users in the physical and virtual spaces.
3D virtual full-loop CFD simulation of industrial two-stage FCC reaction–regeneration system
Authors: Zhong Hanbin , Chen Jing , Gao Fei , Zhang Juntao , Zhu Yuqin , Niu Ben 
Published: March 2022

Abstract
The 3D virtual full-loop CFD simulation method with two-fluid model (TFM) was developed to model an industrial two-stage FCC reaction–regeneration system. The virtual connections (mass, species, and energy) between riser reactors, disengager, stripper, and regenerator were realized by defining user-defined functions (UDFs) for boundary conditions according to the reality. Five correction factors were used to correct the reaction rates in the 14-lump FCC reaction kinetics, and two correction factors were used to correct the FCC reaction heat in the first and second riser reactors. As a result, the whole FCC reaction–regeneration system was successfully modeled in one single CFD case. A thorough and comprehensive view of the performance of reaction–regeneration system was obtained by the 3D virtual full-loop CFD simulation, which is helpful for the operating and optimization of FCC unit. The major predicted results were in a good agreement with the industrial data. The effects of operating conditions were also investigated by changing regenerated temperature, catalyst to oil (CTO) ratio, and process capacity.
Analysis of nozzle clogging position in a continuous casting mold
Authors: Jinbo Li , Tao Zhang , Fubin Gao , Yankun Gong , Dan Zhou 
Published: March 2022

Abstract
In this paper, the flow field of the submerged entry nozzle (SEN) in the continuous casting process is analyzed in detail by numerical simulation. It is found that the front and rear positions of the SEN outlets and the bottom of the nozzle are prone to the accumulation of inclusions. Compared with the actual SEN, the clogging positions with the simulated results are consistent. The composition of nozzle nodules at two different positions is analyzed by scanning electron microscope (SEM), and the inclusions are alumina. The changes in molten steel level characteristics in the mold without and after clogging are compared and analyzed. It is found that the velocity of molten steel near the surface with nozzle clogging reaches 0.483 m/s, the free level fluctuation value of molten steel is 8.9 mm, which is easy to cause steel defects.
Prediction of bearing capacity of driven piles for Basrah governatore using SPT and MATLAB
Authors: Karkush Mahdi O. , Sabaa Majeed R. , Salman Alaa D. , Al-Rumaithi Ayad 
Published: March 2022

Abstract
Based on the results of standard penetration tests (SPTs) conducted in Al-Basrah governorate, this research aims to present thematic maps and equations for estimating the bearing capacity of driven piles having several lengths. The work includes drilling 135 boreholes to a depth of 10 m below the existing ground level and three standard penetration tests (SPT) at depths of 1.5, 6, and 9.5 m were conducted in each borehole. MATLAB software and corrected SPT values were used to determine the bearing capacity of driven piles in Al-Basrah. Several-order interpolation polynomials are suggested to estimate the bearing capacity of driven piles, but the first-order polynomial is considered the most straightforward. Furthermore, the root means squared error (RMSE) for all suggested polynomials are roughly the same. The production of thematic maps demonstrates the variation in bearing capacity of driven piles over the entire territory of Al-Basrah governorate in correlation with different depths. The results of the statistical equations showed that there is good agreement with those obtained from the SPT data. When compared with the observed values from SPT, the allowable bearing capacity results for the driven piles ranged from (−3 to +38)%. The main results of this study showed a variation of 30% between calculated and estimated values of bearing capacity of driven piles for all lengths of piles at a 95% confidence interval.
Nonlinear Thermal Transport with Inertia in Thin Wires: Thermal Fronts and Steady States
Authors: Sciacca Michele , Jou David 
Published: March 2022

Abstract
In a series of papers we have obtained results for nonlinear heat transport when thin wires exchange heat non-linearly with the surroundings, with particular attention to propagating solitons. Here we obtain and discuss new results related to the propagation of nonlinear heat fronts and some conceptual aspects referring to the application of the second principle of thermodynamics to some nonlinear steady states related to non-propagating solitons.
Familial early-onset obesity in Turkish children: variants and polymorphisms in the melanocortin-4 receptor (MC4R) gene
Authors: Kırmızıbekmez Heves , Kendir Demirkol Yasemin , Akgün Doğan Özlem , Seymen Gülcan , İnan Balcı Elif , Atla Pınar , Dursun Fatma 
Published: March 2022

Abstract

Objectives
Genetic factors have a key role in childhood obesity with higher rates in children than adults. Among the monogenic types of non-syndromic obesity, melanocortin-4 receptor (MC4R) deficiency is the most frequent cause. Beside pathogenic variants, single-nucleotide polymorphisms in MC4R gene are also associated with lower energy expenditure. The aim of this study was to estimate the frequency of MC4R variants and polymorphisms in a cohort of Turkish children and adolescents with severe early-onset obesity, and to understand the clinical features of patients.

Methods
Patients, 1–17 years of age, with the onset of obesity before 10 years of age and a body mass index (BMI) standard deviation score (SDS) of >2.3, and who had a family history of early-onset obesity in at least one of their first-degree relatives were included in the study. Beside routine blood tests genetic analyses for MC4R gene were performed.

Results
Analyses of MC4R revealed previously known variations in three (3.5%) patients, and pathogenic polymorphisms related with obesity in four (4.7%) patients. BMI SDS values were between 2.8 and 5.5 SDS in the pathogenic variant carrier group, and 2.8–4.9 SDS in the polymorphism group. Mean BMI SDS in variant-negative group was 3.4 ± 0.82.

Conclusions
Investigation of the MC4R in individuals with early-onset obesity and presence of obesity first-degree relatives is important. Hypertension is a rare comorbidity compared to other causes. Contrary to studies reporting that insulin resistance was absent or very rare, we found it as a frequent finding in both pathogenic variants and polymorphisms of MC4R.
On Armstrong’s Radical Absolutism
Authors: Tricard Julien 
Published: March 2022

Abstract
Within the metaphysics of quantity, the debate rages between Absolutism and Comparativism. In retrospect, Armstrong appears to be an absolutist, for he claims that magnitudes like being 1 kg in mass are intrinsic properties of particulars, in virtue of which relations like being twice as massive as hold. More importantly, his theory is an instance of what I call ‘Radical Absolutism’ (and the only on the market), for he does not merely argue that relations are grounded in magnitudes, but also (and quite admirably) tries to explain how they “flow from” (his words) the intrinsic features of magnitudes. The goal of the paper is not to support his theory, but to better understand why it fails, and why this must be of concern to contemporary absolutists.
On extensions of the Open Door Lemma
Authors: Amani Mostafa , Aghalary Rasoul , Ebadian Ali , Cho Nak Eun 
Published: March 2022

Abstract
The Open Door Lemma is the well-known famous result due to Miller and Mocanu that provides a sufficient condition for an analytic function on the unit disk to have positive real part. This lemma has already been corrected by Kuroki and Owa for non-real initial point. Also, Li and Sugawa extended the Open Door Lemma in a such way that an analytic function takes its values in the given symmetric sector. Now, by the same methods, we provide a sufficient condition for an analytic function to take its values in the asymmetric arbitrary sector.
Stability and feedback stabilizability of delay periodic differential equations with pairwise permutable matrix functions
Authors: Medveď Milan , Pospíšil Michal 
Published: March 2022

Abstract
Representation of solutions of delayed differential equations with multiple delays and periodic coefficients is established. Consequently, results on stabilizability of weakly delayed closed-loop systems and stability of non-weakly delayed periodic systems are proved. The stabilizability result is an extension of the classical Brunovský theorem for linear periodic systems of ordinary differential equations to a class of delay differential equations with pairwise permutable matrix functions.
Optically tunable split-ring resonators controlled lead sulfide quantum dots modulator for wide THz radiation
Authors: Xu Yifei , Song Qi , Li Enen , Zhang Min , Sun Zhenhua , Wang Tianwu , Liu Fang , Yan Peiguang 
Published: March 2022

Abstract
It is particularly appealing for efficient active terahertz (THz) modulators using photonic structures to enhance light–matter interaction. Here, an optical controlled THz modulator is proposed that combines lead sulfide (PbS) quantum dots with subwavelength metallic split-ring resonators (SRRs) for providing field enhancement. The modulation depth reaches 60.3%, which is approximately 3 times larger than the PbS quantum dots film without SRRs (as reference) in the frequency range of 0.1–1.1 THz. Such significant enhanced THz modulation is mainly due to the local THz field enhancement caused by the SRRs, which is consistent with the simulation result.
Recent progress in metasurface-enabled optical waveplates
Authors: Deng Yadong , Cai Ziru , Ding Yingtao , Bozhevolnyi Sergey I. , Ding Fei 
Published: March 2022

Abstract
The polarization of light is crucial for numerous optical applications ranging from quantum information processing to biomedical sensing due to the fundamental role of polarization as another intrinsic characteristic of optical waves, which is uncorrelated with the amplitude, phase, and frequency. However, conventional optical waveplates that enable polarization control are based on the accumulated retardation between two orthogonally polarized electric fields when light propagates a distance much larger than its wavelength in birefringent materials, resulting in bulky configurations and limited functionalities. Optical metasurfaces, ultrathin arrays of engineered meta-atoms, have attracted increasing attention owing to their unprecedented capabilities of manipulating light with surface-confined configurations and subwavelength spatial resolutions, thereby opening up new possibilities for revolutionizing bulky optical waveplates with ultrathin planar elements that feature compactness, integration compatibility, broadband operation bandwidths, and multiple functionalities. Herein, we review the recent progress in metasurface-enabled optical waveplates, which covers both basic principles and emerging applications. We provide an overview of metasurface-based conventional half- and quarter-waveplates as well as their use in wavefront shaping applications, followed by a discussion of advanced waveplates, including multifunctional waveplates and all-polarization generators. We also discuss dynamic waveplates based on active metasurfaces. Finally, we conclude by providing our outlook in this emerging and fast-growing research field.
Hans Vaihinger und die Stiftung Nietzsche-Archiv. Die Briefe an Richard Oehler
Authors: Neuber Matthias 
Published: March 2022

Abstract

Hans Vaihinger and the Stiftung Nietzsche-Archiv. The Letters to Richard Oehler. Hans Vaihinger’s letters to Richard Oehler document the ideological constellation in the context of the First World War. Unconcealed enthusiasm for the war, associated national-chauvinist resentment, and pronounced anti-communism immediately after the war clearly emerge. At first sight, this may be surprising, since Vaihinger is generally regarded as a progressive liberal pacifist. As this article attempts to make clear, however, it is also evident in Vaihinger’s case that the First World War and its immediate aftermath led – at least temporarily – to quite questionable intellectual attitudes even among declared pacifists. In this respect, Vaihinger’s letters to Nietzsche’s cousin, librarian at the Nietzsche Archive in Weimar and later convinced National Socialist Richard Oehler are evaluated as revealing documents of contemporary history.
Study on modal parameter identification of engineering structures based on nonlinear characteristics
Authors: Guo Wei , Rubaiee Saeed , Ahmed Anas , Othman Asem Majed , Khosla Atul 
Published: March 2022

AbstractTo study the nonlinear characteristics of the modal recognition of civil engineering parameters, a method of nonlinear recognition of the parameters of characteristics based on LMD is proposed. The LMD method is applied to decompose the acceleration response signals of the disturbing structure of the building, to obtain the PF components, the instantaneous frequency, and the instantaneous amplitude of each PF component, to determine the modal natural frequency and damping coefficient. To determine the modal parameter based on the LMD, the calculation and analysis results are presented as follows: the frequency of the components fluctuates between the fifth and sixth models, which shows that the components contain the reaction of the fifth and sixth design modes. This is because these two modes (3.101 Hz and 3.147 Hz) are very close to each other, which makes it difficult to distinguish between the responses of these two modes by the LMD method. The frequency of the components is always stable (the first 2.5 s), which indicates that during this period the responses of modes 5e and 6e do not dampen, and the ratio between them in the PF1 components does not differ much. The component frequency curve shows an interesting phenomenon. Starting from about 3.8 s, the frequency curve gradually approaches the first mode, and only the frequency of the first mode is about 6 s, which indicates that the response of the first mode still exists and makes up a significant proportion. Modular response, caused by the damping, is only detected in the first half of the 10 s response, after which it is verified from the nonlinear characteristics of the LMD parameter recognition method that half of the third-order modal response on the scale is very low and almost equal to zero, and despite problems with dense frequency separation mode in the LMD method, the frequency responses of its PF components may reflect the mode combination phenomenon and reflect the duration of each mode throughout the response.
Perceptions and knowledge regarding quality and safety of plastic materials used for food packaging
Authors: Macena Morgana Weber , Carvalho Rita , Cruz-Lopes Luísa Paula , Guiné Raquel P. F. 
Published: March 2022

Abstract
The objective of this study is to investigate the consumer perceptions about quality and safety of foods packed in plastic, as well as the impact of plastic materials on human health. To carry out the study, a questionnaire survey about the consumption habits and knowledge about plastic packaging was conducted to a sample of 487 Portuguese adult citizens. The results revealed that most respondents (81%) think about food safety and quality when purchasing foods. Additionally, it was found that the consumer’s knowledge about the toxicity of components possibly migrating from the plastic packaging to the food is still limited (only 46% of participants). However, other negative effects of plastics well known to consumers include environmental pollution and marine fauna degradation (67 and 82% of participants, respectively). Thus, it was concluded that the Portuguese population need to be further educated about the toxicity of some chemical compounds present in plastic packaging, which can be ingested by migrating to the food or which can be absorbed from the environmental microplastics resulting from incorrect disposal.