bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of surface morphology on macroscale and microscale optical properties of layered InSe grown by molecular beam epitaxy
Authors: Avdienko P. S. , Sedova I. V. , Firsov D. D. , Komkov O. S. , Rakhlin M. V. , Galimov A. I. , Davydov V. Yu. , Sorokin S. V. 
Published: July 2021

This paper reports the results on the microphotoluminescence (µPL) and photoreflectance (PR) spectroscopy studies of InSe thin film grown by molecular beam epitaxy on GaAs(001) substrate. The specific surface morphology of the InSe/GaAs(001) layer consisting of a number of randomly oriented nanoplatelets with the average thickness of 40–200 nm leads to a difference in optical properties measured on the macroscale (PR) and microscale (µPL). The highest energy peak at 1.348 eV observed in the µPL spectra at low excitation densities was attributed to the recombination of localized excitons in

ε

-InSe.
Tunable terahertz dual-band perfect absorber based on the combined InSb resonator structures for temperature sensing
Authors: Luo Hao , Wang Xi , Qian Hang 
Published: July 2021

In this paper, a tunable perfect absorber (PA) based on a combined InSb resonator structure is proposed and investigated numerically in the terahertz (THz) region, which can serve as a dual-band temperature sensor. The unit cell of the proposed PA consists only of the combined InSb ring-disk-shaped resonator structures adhered on a continuous gold film and dielectric substrate. The permittivity of the InSb material is highly dependent on the variation of the external temperature. Numerical simulation results indicate that the proposed PA at a temperature of 290 K can achieve absorbance of 99.4% and 98.7% at 1.598 THz and 1.926 THz, respectively. The two absorption peaks are mainly attributed to the excitation of fundamental dipolar resonance modes caused by the ring-shaped and disk-shaped structures, separately. The absorption properties of the proposed PA can be adjusted by varying the structure parameters. Furthermore, the proposed dual-band PA can function as a temperature sensor with sensitivities of about 8.54 GHz/K and 16.25 GHz/K, respectively. Due to its excellent performance, the proposed dual-band PA could find many potential applications of thermal emitting, sensing, and detecting in the THz regime.
Dual-focusing behavior of a one-dimensional quadratically chirped Pearcey-Gaussian beam
Authors: Zang Feng , Liu Lifeng , Deng Fusheng , Liu Yanhong , Dong Lijuan , Shi Yunlong 
Published: July 2021

In this paper, we provide analytical solutions describing the dynamic behavior of the Pearcey-Gaussian beams propagating in free space. Based on the analytical solutions, explicit expressions governing the focusing distances of the Pearcey-Gaussian beams are found and verified by numerical simulations. For the linearly chirped Pearcey-Gaussian beam, it exhibits a uni-focusing behavior during propagation. Particularly, the focusing distance is independent on the linear chirp parameter and remains z
f
= 2 unchanged. Of particular interest is that the quadratically chirped Pearcey-Gaussian beam focuses twice when the quadratic chirp parameter β < 0. The first and the second focusing distances are determined by zf1 = 2/(1 − 4β) and zf2 = −1/(2β), respectively. Furthermore, we numerically investigate the peak powers at the different focusing positions and find that as β increases, the peak powers at zf1 and zf2 linearly decrease. It is expected that the characteristics can be used for manipulating the focusing distances and the peak powers to generate an optical beam with high peak power by adjusting the chirp parameter β.
Narrowband photonic quantum entanglement with counterpropagating domain engineering
Authors: Liu Yi-Chen , Guo Dong-Jie , Yang Ran , Sun Chang-Wei , Duan Jia-Chen , Gong Yan-Xiao , Xie Zhenda , Zhu Shi-Ning 
Published: July 2021

Narrowband photonic entanglement is a crucial resource for long-distance quantum communication and quantum information processing, including quantum memories. We demonstrate the first polarization entanglement with 7.1 GHz inherent bandwidth by counterpropagating domain engineering, which is also confirmed by Hong–Ou–Mandel interference with 155-ps base-to-base dip width and

(
97.1
±
0.59
)
%

high visibility. The entanglement is harnessed with 18.5-standard-deviations Bell inequality violation, and further characterized with state tomography of

(
95.71
±
0.61
)
%

fidelity. Such narrowband entanglement sets a cornerstone for practical quantum information applications.
Very large group delay in VHF band using coupled high temperature superconducting resonators
Authors: Zheng Tianning , Wei Bin , Lei Fuchuan , Cao Bisong 
Published: July 2021

Storing a very high frequency (VHF) band (30–300 MHz) electromagnetic wave has many potential applications, such as phase modulation, buffering, and radio frequency memory. It can be effectively achieved by applying coupled resonator-based electromagnetically induced transparency (EIT) due to its slow light effect. However, the wavelength in the VHF band is too long to design resonators, and the group delay is limited by the high resistive loss of metal. The practical application of EIT in the VHF band is still a big challenge. In this work, we propose and experimentally demonstrate EIT response in a high-temperature superconducting (HTS) microwave circuit with coupled-resonator-induced transparency. The chip size of the HTS circuit is only

34

mm
×
20

mm

with a very low transparency frequency of 198.55 MHz. In addition, we implement very large group delay higher than 12.3 μs and 16.2 μs with working temperatures of 65 K and 50 K separately, which is much longer than the previous reported works on slow wave. The fabricated circuit is planar with working temperature about 65 K, and thus can be easily integrated into other microwave devices under the cryogenic conditions provided by a commercial portable Stirling cryocooler. Our proposed method paves a way for studying EIT in the microwave region due to the high quality factor of the HTS resonator, which has great potential use for radio-frequency memory in the future.
Terahertz wavefront shaping with multi-channel polarization conversion based on all-dielectric metasurface
Authors: Li Jie , Zheng Chenglong , Li Jitao , Wang Guocui , Liu Jingyu , Yue Zhen , Hao Xuanruo , Yang Yue , Li Fuyu , Tang Tingting , Zhang Yating , Zhang Yan , Yao Jianquan 
Published: July 2021

Polarization manipulation of electromagnetic wave or polarization multiplexed beam shaping based on metasurfaces has been reported in various frequency bands. However, it is difficult to shape the beam with multi-channel polarization conversion in a single metasurface. Here, we propose a new method for terahertz wavefront shaping with multi-channel polarization conversion via all-silicon metasurface, which is based on the linear shape birefringence effect in spatially interleaved anisotropic meta-atoms. By superimposing the eigen- and non-eigen-polarization responses of the two kinds of meta-atoms, we demonstrate the possibility for high-efficiency evolution of several typical polarization states with two independent channels for linearly polarized waves. The measured polarization conversion efficiency is higher than 70% in the range of 0.9–1.3 THz, with a peak value of 89.2% at 1.1 THz. In addition, when more other polarization states are incident, combined with the integration of sub-arrays, we can get more channels for both polarization conversion and beam shaping. Simulated and experimental results verify the feasibility of this method. The proposed method provides a new idea for the design of terahertz multi-functional metadevices.
Predicting the efficacy of COVID-19 convalescent plasma donor units with the Lumit Dx anti-receptor binding domain assay
Authors: Janaka Sanath Kumar , Clark Natasha M. , Evans David T. , Mou Huihui , Farzan Michael , Connor Joseph P. 
Published: July 2021

Background
The novel coronavirus SARS-CoV2 that causes COVID-19 has resulted in the death of more than 2.5 million people, but no cure exists. Although passive immunization with COVID-19 convalescent plasma (CCP) provides a safe and viable therapeutic option, the selection of optimal units for therapy in a timely fashion remains a barrier.

Study design and methods
Since virus neutralization is a necessary characteristic of plasma that can benefit recipients, the neutralizing titers of plasma samples were measured using a retroviral-pseudotype assay. Binding antibody titers to the spike (S) protein were also determined by a clinically available serological assay (Ortho-Vitros total IG), and an in-house ELISA. The results of these assays were compared to a measurement of antibodies directed to the receptor binding domain (RBD) of the SARS-CoV2 S protein (Promega Lumit Dx).

Results
All measures of antibodies were highly variable, but correlated, to different degrees, with each other. However, the anti-RBD antibodies correlated with viral neutralizing titers to a greater extent than the other antibody assays.

Discussion
Our observations support the use of an anti-RBD assay such as the Lumit Dx assay, as an optimal predictor of the neutralization capability of CCP.
Effectiveness of a nurse-led hospital-to-home transitional care intervention for older adults with multimorbidity and depressive symptoms: A pragmatic randomized controlled trial
Authors: Markle-Reid Maureen , McAiney Carrie , Fisher Kathryn , Ganann Rebecca , Gauthier Alain P. , Heald-Taylor Gail , McElhaney Janet E. , McMillan Fran , Petrie Penelope , Ploeg Jenny , Urajnik Diana J. , Whitmore Carly 
Published: July 2021

ObjectiveTo evaluate the effectiveness of a nurse-led hospital-to-home transitional care intervention versus usual care on mental functioning (primary outcome), physical functioning, depressive symptoms, anxiety, perceived social support, patient experience, and health service use costs in older adults with multimorbidity (≥ 2 comorbidities) and depressive symptoms.Design and settingPragmatic multi-site randomized controlled trial conducted in three communities in Ontario, Canada. Participants were allocated into two groups of intervention and usual care (control).Participants127 older adults (≥ 65 years) discharged from hospital to the community with multimorbidity and depressive symptoms.InterventionThis evidence-based, patient-centred intervention consisted of individually tailored care delivery by a Registered Nurse comprising in-home visits, telephone follow-up and system navigation support over 6-months.Outcome measuresThe primary outcome was the change in mental functioning, from baseline to 6-months. Secondary outcomes were the change in physical functioning, depressive symptoms, anxiety, perceived social support, patient experience, and health service use cost, from baseline to 6-months. Intention-to-treat analysis was performed using ANCOVA modeling.ResultsOf 127 enrolled participants (63-intervention, 64-control), 85% had six or more chronic conditions. 28 participants were lost to follow-up, leaving 99 (47 -intervention, 52-control) participants for the complete case analysis. No significant group differences were seen for the baseline to six-month change in mental functioning or other secondary outcomes. Older adults in the intervention group reported receiving more information about health and social services (p = 0.03) compared with the usual care group.ConclusionsAlthough no significant group differences were seen for the primary or secondary outcomes, the intervention resulted in improvements in one aspect of patient experience (information about health and social services). The study sample fell below the target sample (enrolled 127, targeted 216), which can account for the non-significant findings. Further research on the impact of the intervention and factors that contribute to the results is recommended.Trial registrationclinicaltrials.gov Identifier:NCT03157999.
Positioning zoonotic disease research in forced migration: A systematic literature review of theoretical frameworks and approaches
Authors: Tasker Alex , Braam Dorien 
Published: July 2021

BackgroundThe emergence and transmission of zoonotic diseases are driven by complex interactions between health, environmental, and socio-political systems. Human movement is considered a significant and increasing factor in these processes, yet forced migration remains an understudied area of zoonotic research–due in part to the complexity of conducting interdisciplinary research in these settings.ObjectivesWe conducted a systematic review to identify and analyze theoretical frameworks and approaches used to study linkages between forced migration and zoonotic diseases.MethodsWe searched within eight electronic databases: ProQuest, SCOPUS, Web of Science, PubMed, PLoSOne, Science Direct, JSTOR, and Google Scholar, to identify a) research articles focusing on zoonoses considering forced migrants in their study populations, and b) forced migration literature which engaged with zoonotic disease. Both authors conducted a full-text review, evaluating the quality of literature reviews and primary data using the Critical Appraisal Skills Programme (CASP) model, while theoretical papers were evaluated for quality using a theory synthesis adapted from Bonell et al. (2013). Qualitative data were synthesized thematically according to the method suggested by Noblit and Hare (1988).ResultsAnalyses of the 23 included articles showed the increasing use of interdisciplinary frameworks and approaches over time, the majority of which stemmed from political ecology. Approaches such as EcoHealth and One Health were increasingly popular, but were more often linked to program implementation and development than broader contextual research. The majority of research failed to acknowledge the heterogeneity of migrant populations, lacked contextual depth, and insufficient acknowledgments of migrant agency in responding to zoonotic threats.ConclusionsAddressing the emergence and spread of zoonoses in forced migration contexts requires more careful consideration and use of interdisciplinary research to integrate the contributions of social and natural science approaches. Robust interdisciplinary theoretical frameworks are an important step for better understanding the complex health, environment, and socio-political drivers of zoonotic diseases in forced migration. Lessons can be learned from the application of these approaches in other hard-to-reach or seldom-heard populations.
Pricing through health apps generated data—Digital dividend as a game changer: Discrete choice experiment
Authors: Heidel Alexandra , Hagist Christian , Schlereth Christian 
Published: July 2021

Objectives
The objective of this paper is to study under which circumstances wearable and health app users would accept a compensation payment, namely a digital dividend, to share their self-tracked health data.

Methods
We conducted a discrete choice experiment alternative, a separated adaptive dual response. We chose this approach to reduce extreme response behavior, considering the emotionally-charged topic of health data sales, and to measure willingness to accept. Previous experiments in lab settings led to demands for high monetary compensation. After a first online survey and two pre-studies, we validated four attributes for the final online study: monthly bonus payment, stakeholder handling the data (e.g., health insurer, pharmaceutical or medical device companies, universities), type of data, and data sales to third parties. We used a random utility framework to evaluate individual choice preferences. To test the expected prices of the main study for robustness, we assigned respondents randomly to one of two identical questionnaires with varying price ranges.

Results
Over a period of three weeks, 842 respondents participated in the main survey, and 272 respondents participated in the second survey. The participants considered transparency about data processing and no further data sales to third parties as very important to the decision to share data with different stakeholders, as well as adequate monetary compensation. Price expectations resulting from the experiment were high; pharmaceutical and medical device companies would have to pay an average digital dividend of 237.30€/month for patient generated health data of all types. We also observed an anchor effect, which means that people formed price expectations during the process and not ex ante. We found a bimodal distribution between relatively low price expectations and relatively high price expectations, which shows that personal data selling is a divisive societal issue. However, the results indicate that a digital dividend could be an accepted economic incentive system to gather large-scale, self-tracked data for research and development purposes. After the COVID-19 crisis, price expectations might change due to public sensitization to the need for big data research on patient generated health data.

Conclusion
A continuing success of existing data donation models is highly unlikely. The health care sector needs to develop transparency and trust in data processing. An adequate digital dividend could be an effective long-term measure to convince a diverse and large group of people to share high-quality, continuous data for research purposes.
Polymorphic variants of ACE, AGT, AGTR1, MTHFR and NOS3 candidate genes connected with arterial hypertension as part of the metabolic syndrome among the shor people
Authors: Mulerova T. A. , Tsygankova D. P. , Ogarkov M. Yu. 
Published: July 2021

Background: The problem of high blood pressure in the framework of metabolic syndrome (MS) is one of the most important for modern medicine in connection with the predicted increase in the incidence in the future and an increase in the mortality rate from cardiovascular disease.Aims: the aim of the study is to examine the frequency of arterial hypertension (AH) as part of the MS among the members of the indigenous population of the Mountain Shoria and to state the degree of the interconnection between the expression level of the candidate genes ACE, AGT, AGTR1, MTHFR and NOS3 and certain health problem.Materials and methods: The sample included 901 members of the indigenous population living in the settlements of the Mountain Shoria region. All experimental subjects had their blood pressure measured, anthropometry (measurements of height, body weight, waist circumference) taken according to standard procedures, fasting blood taken to determine the lipid spectrum and glucose level, morning urine dose taken and albumin level detected. All the patients with hypertension underwent duplex scanning of the brachycephalic arteries and examination of the structural and functional state of the myocardium was performed using echocardiography. Gene polymorphisms ACE (I/D, rs4340), AGT (c.803T>C, rs699), AGTR1 (A1166C, rs5186), MTHFR (c.677C>T, Ala222Val, rs1801133) and NOS3 (VNTR, 4b/4a) were tested using polymerase chain reaction.Results: Among the indigenous population of the Mountain Shoria, the frequency of hypertension combined with abdominal obesity and any other additional component of MS was 28.2%. In the group of the patients with, organ changes in the form of left ventricular myocardial hypertrophy and an increase in the thickness of the intima-media complex were more common than in the group of patients with AH alone: 58.0% versus 45.1%, p = 0.029 and 81.9% versus 67 , 0%, p = 0.007, respectively. The high risk of hypertension within the framework of MS was determined by the D allel of the ACE gene [OR = 2.45; 95% CI (1.05-5.72)].Conclusions: The high frequency of the spread of high blood pressure within MS confirms that hypertension is less frequently manifested as an isolated disease, more often combined with other components of MS — abdominal obesity or disorders of carbohydrate and lipid metabolism. Stated genetic predisposition to hypertension within the MS in a specific small cohort of the Shors will undoubtedly help in the development and implementation of the health programs.
The frequency of metabolic syndrome and its individual components in women aged 25–45 years, depending on the level of prolactin
Authors: Rymar O. D. , Voevoda S. M. , Shakhtshneider E. V. , Stakhneva E. M. , Mustafina S. V. , Shcherbakova L. V. 
Published: July 2021

Background: Hyperprolactinemia is one of the most common hypothalamic-pituitary-endocrine disorders in women of reproductive age, with the highest frequency at the age of 25–44 years. In addition to influencing the reproductive system, it is important to study the effects of prolactin (PRL) on various metabolic links. Available data indicate that the effect of PRL on metabolism depends on its level. In this regard, the study of the relationship of different levels of PRL with anthropometric parameters, indicators of lipid and carbohydrate metabolism in young women is relevant.Aim: To study the frequency of metabolic syndrome (MS) and its individual components in women aged 25–45 years with different levels of prolactin.Materials and methods: Work design — cross-sectional research. A randompopulationsample of women 25–45 agedwas examined. Pregnant and breastfeeding women with macroprolactinoma, and taking antipsychotics were excluded. Information was collected using a structured ­questionnaire, including, but not limited to, the presence of pregnancies, childbirth, menstrual irregularities, and a clinical examination, anthropometric measurements, biochemical and hormonal blood analyzes were performed. Statistical data processing was carried out.Results: According to the inclusion and exclusion criteria, this analysis presents data from 401 women, the average age of the examibed was 36.14±6.19 years. There was no difference in the levels of thyroid-stimulating hormone and prolactin (PRL) in the age groups of 25–34 and 35–45 years. According to the survey, the incidence of thyroid diseases in the studied groups is comparable. Every fifth woman indicated menstrual irregularities. Among women 25–45 years old, women with low-normal PRL values (Me = 4.49 [3.52; 5.41] ng/ml) have more unfavorable metabolic indicators. Metabolic syndrome (MS) was detected in 28%,with a predominant increase in the frequency of abdominal obesity — 55%, hypercholesterolemic LDL — 63%. Women with high PRL (Me = 41.35 [34.78; 45.88] ng / ml) also have an unfavorable metabolic profile: MS was detected in 47%, abdominal obesity — 56%, hypertension — 39%.Conclusions: In women 25–45 years old, low and high PRL values are more often associated with metabolic ill health. PRL values are from 7.8 to 28 ng / ml, i.e. conditionally defined as normal, highly normal and at the level of moderate hyperprolactinemia contribute to the maintenance of a favorable metabolic profile. When deciding on the treatment of women with non-tumor etiology hyperprolactinemia, it is important to assess the metabolic status, expanding their understanding of PRL as a hormone associated only with lactation and with the pituitary-gonad axis.