bluuebunny/crossref_metadata_2025_split huggingface dataset:
Depressive Symptoms and Health-Related Quality of Life in Patients with Cardiovascular Diseases Attending a Tertiary Care Hospital, Puducherry—A Cross-Sectional Study
Authors: Senthilkumar Arokiasamy , Subitha Lakshminarayanan , Saravanan Essakky , Giriyappa Dinesh Kumar , Satheesh Santhosh , Menon Vikas 
Published: April 2021

Abstract

Background Globally, coronary artery disease (CAD) was the leading cause of health losses. The emergence of revascularization has brought a major change in the management of CAD. Depression and cardiovascular diseases (CVD) are the two highly prevalent noncommunicable diseases (NCD), which lead to poor quality of life and high socio-economic loss for the patient. The rate of depressive episodes was higher in CAD population in comparison to population with other heart problems.

Objectives The primary objective of the current study is to determine the proportion of those with depressive symptoms through Patient Health Questionnaire-9 (PHQ-9) among CAD patients in a tertiary care public hospital.

Methods It was a cross-sectional analytical design, which assess the percentage of patients with depressive symptoms among CAD patients, using a pretested, semistructured questionnaire. The PHQ-9 and EuroQoL five-dimensional three-level (EQ-5D-3L) questionnaire, a quality-of-life instrument (five items), were used, which was validated in the Tamil version.

Statistical Analysis Categorical variables was expressed as proportion. We used Chi-square as a statistical test to calculate the p value and risk estimation with 95% CI.

Results Out of 541 patients, 159 (30%) patients had mild-to-moderate depressive symptoms, of which 144 (89%) participants were greater than 50 years. In EQ-5D-3L, around one-third of the participants reported pain or discomfort and anxiety or depression.

Conclusion The study concludes that the assessment of health-related quality of life (HRQoL) is becoming increasingly important in the management of CAD patients. Studies have shown that depression predicts subsequent quality of life, while others have shown that HRQoL is a risk factor for ongoing depression. Treatment of depression may improve subsequent physical HRQoL; hence, it is vital to address both during their follow-up to improve outcomes among patients with CAD.
Kriya Yoga in Patients with Depressive Disorders: A Pilot Study
Authors: Srivastava Ananya , Kuppili Pooja P. , Gupta Tanu , Nebhinani Naresh , Chandani Ambika 
Published: April 2021

Abstract

Background and Objectives Despite the easy acceptability and holistic nature of Kriya yoga, there are no studies evaluating the role of Kriya yoga intervention on depression. The objective of the current study was to assess the feasibility and effect of adjunctive Kriya yoga on depression.

Methods Patients with major depressive disorder who opted for Kriya yoga were recruited into the intervention group (adjunctive Kriya yoga) and those on psychotropic medication alone were enrolled into the control group. The Hamilton Depression Rating Scale (HDRS) measurements were recorded at baseline, end of 2, 4, and 8 weeks.

Results HDRS scores of the intervention group (n = 29) were found to be significantly lesser than that of the control group (n = 52) by the end of 2, 4, and 8 weeks. The remission rate was also significantly greater in the intervention group.

Conclusion Kriya yoga intervention was found to be feasible, as well as improved the severity of depression.
Magnetic Resonance Imaging in Peripartum Encephalopathy: A Pictorial Review
Authors: Manjubashini Duraipandi , Nagarajan Krishnan , Amuthabarathi Mohan , Papa Dasari , Wadwekar Vaibhav , Narayan Sunil K. 
Published: April 2021

Abstract
Acute neurological problems are significant disorders of pre- and postpartum period in women. We analyzed the magnetic resonance imaging (MRI) profile of patients presenting with peripartum encephalopathy over 2 years. Of 51 patients, MRI was abnormal in 40 patients and normal in 11 patients. Posterior reversible encephalopathy (13/40), cerebral venous thrombosis (6/40), and postpartum angiopathy (3/40) are the three most common causes of peripartum encephalopathy as identified in MRI. The other less common but important etiology include HELLP (Hemolysis, Elevated Liver enzymes and Low Platelet) syndrome (2), osmotic demyelination (2), antiphospholipid syndrome (2), tubercular meningitis/cerebritis (3), pituitary hyperplasia with hemorrhage (2), postictal edema (2), cerebellitis (1), transient splenial lesion (1), and changes of old trauma and stroke (one each).
Effects of Health Promotion Model-Based Visual Learning Module on Self-Efficacy and Health Promotion Behavior of Stroke Survivors: A Nonrandomized Controlled Trial
Authors: Mudgal Shiv Kumar , Sharma Suresh K. , Chaturvedi Jitender , Chundawat Digpal Singh 
Published: April 2021

AbstractBackground and Objectives Globally, stroke is one of the major causes of disability and mortality among adults and old age people. The present study aims to evaluate the effects of the health promotion model-based visual learning module (HPM-VLM) on self-efficacy and behavioral modifications among stroke survivors.Methods This nonrandomized controlled trial was conducted on 70 stroke survivors (intervention group,n= 35, and control group,n= 35). The intervention group was subjected to two sessions of the HPM-VLM and the control group received routine instructions. Data were collected through face-to-face structured interview, and observation using a self-structured self-efficacy questionnaire and health promotion behavior questionnaire. Data were analyzed using descriptive (frequency and percentage) and inferential (Chi-square, independentt-test, mixed model, and ANCOVA) values by IBM Statistical Package for Social Sciences (SPSS; version 23) software.Results Eventually, follow-up could have been completed for 66 participants (intervention group,n= 34, and control group,n= 32). HPM-VLM is found to be effective in the promotion of self-efficacy (19.2 ± 1.6 vs. 16.12 ± 2.5;p= 001) and health promotion behavior of stroke survivors in most of the domains (p< 0.01).Conclusion HPM-VLM is an effective interventional tool for the promotion of self-efficacy and health promotion behavior of stroke survivors.
A case study on impacts of community participation in tourism planning and destination management in Kerala, India.
Authors: George Anu Treesa , Jiang Min , DeLacy Terry 
Published: April 2021

Abstract

This case study in Kerala, India explores the positive impacts of community participation on economic, socio-cultural and environmental factors through responsible tourism initiatives in Kumarakom destination. This research evaluates the effectiveness, fundamental elements and conceptual foundation of participatory design in the case study destination. The results of the case study indicate that participatory design can accelerate local community development, innovative initiatives, leadership, employment opportunities, demand for local products and sustainable development in the destination.
Planning agritourism development in Sri Lanka: farmers' incentives and barriers.
Authors: Niranjan Frank , Croy Glen 
Published: April 2021

Abstract

This chapter aims to understand farmers' perceptions of agritourism in emerging economies of South Asia, using Sri Lanka as a focus case. In achieving the aim, the chapter contributes to understanding agritourism within emerging economies in three ways. First, it proposes to identify farmers' propensity for agritourism as an option. Second, it identifies the most prominent factors motivating farmers to engage in agritourism. Finally, it highlights priority agritourism themes for planning and development officials in an emerging economy context.
History of tourism planning and development in Nepal: achievements and challenges to sustainable future of tourism.
Authors: Dangi Tek B. , Kc Birendra , Gautam Laxman 
Published: April 2021

Abstract

While presenting the history of tourism development in Nepal with reference to some global initiatives, this chapter discusses the major achievements and challenges in (sustainable) tourism development and offers some recommendations, along with practical implications for policy-making bodies and practitioners.
Cuscuta campestris (field dodder).
Authors: Parker Chris 
Published: April 2021

Abstract

The parasitic weed C. campestris is native to North America but has been introduced around the world and become a weed in many countries. It is by far the most important of the dodders, perhaps because of its wide host range. This ensures that there is a wide range of crop seeds that may be contaminated, and in which it may be introduced to new areas over both short and long distances. Once introduced it is almost certain that there will be suitable host plants on which it can thrive and be damaging, whether they are crops or wild species. Vegetative spread can be very rapid - up to 5 m in 2 months. It also has a wide tolerance of climatic conditions from warm temperate to sub-tropical and tropical.
Compressive sensing for polarization sensitive optical coherence tomography
Authors: Wang Jianfeng , Chaney Eric J , Aksamitiene Edita , Marjanovic Marina , Boppart Stephen A 
Published: April 2021

Abstract
In this report, we report on the implementation of compressive sensing (CS) and sparse sampling in polarization sensitive optical coherence tomography (PS-OCT) to reduce the number of B-scans (frames consisting of an array of A-scans, where each represents a single depth profile of reflections) required for effective volumetric (3D dataset composed of an array of B-scans) PS-OCT measurements (i.e. OCT intensity, and phase retardation) reconstruction. Sparse sampling of PS-OCT is achieved through randomization of step sizes along the slow-axis of PS-OCT imaging, covering the same spatial ranges as those with equal slow-axis step sizes, but with a reduced number of B-scans. Tested on missing B-scan rates of 25%, 50% and 75%, we found CS could reconstruct reasonably good (as evidenced by a correlation coefficient >0.6) PS-OCT measurements with a maximum reduced B-scan rate of 50%, thereby accelerating and doubling the rate of volumetric PS-OCT measurements.
Broadband, optically transparent and highly flexible multispectral beam splitter based on Ag nanowires/graphene composite film for hybrid optical systems
Authors: Lai Weien , Fang Hongyun , Liu Gen , Zhu Qing , Zhu Jiaqi , Shi Guanghua , Wu Huizhen 
Published: April 2021

Abstract
The research on novel terahertz (THz) devices with high performance is in rapid ascent in order to promote applications of THz technology. In this paper, we propose a broadband, optically transparent and highly flexible multispectral beam splitter based on Ag nanowires/graphene (ANWG) composite film on polyethylene terephthalate film substrates. The properties of the ANWG-based beam splitters are investigated, which exhibit a broadband THz reflectance of about 90%, a high optical transmittance of over 86% in the visible range, and excellent mechanical flexibility. The THz experimental result of the ANWG-based beam splitter is close to those of numerical simulations using a theoretical model. In comparison with conventional THz beam splitters, the ANWG-based beam splitter possesses excellent light-splitting performances for both transmitting visible light and reflecting THz radiation, and the device can significantly improve the overall performance of THz optical systems. Moreover, the device can be effectively applied in the visible/infrared imaging systems to implement multispectral imaging. Our concept provides a promising route for realizing compact hybrid optical systems, and it has great potential for commercial applications.
Electronic and crystal structures of LnFeAsO1−x
H
x
(Ln = La, Sm) studied by x-ray absorption spectroscopy, x-ray emission spectroscopy, and x-ray diffraction: II pressure dependence
Authors: Yamamoto Yoshiya , Yamaoka Hitoshi , Kawai Takuma , Yoshida Masahiro , Yamaura Jun-ichi , Ishii Kenji , Onari Seiichiro , Uozumi Takayuki , Hariki Atsushi , Taguchi Munetaka , Kobayashi Kensuke , Lin Jung-Fu , Hiraoka Nozomu , Ishii Hirofumi , Tsuei Ku-Ding , Okanishi Hiroshi , Iimura Soshi , Matsuishi Satoru , Hosono Hideo , Mizuki Jun’ichiro 
Published: April 2021

Abstract
We examine electronic and crystal structures of iron-based superconductors LnFeAsO1−x
H
x
(Ln = La, Sm) under pressure by means of x-ray absorption spectroscopy (XAS), x-ray emission spectroscopy (XES), and x-ray diffraction. In LaFeAsO the pre-edge peak on high-resolution XAS at the Fe-K absorption edge gains in intensity on the application of pressure up to 5.7 GPa and it saturates in the higher pressure region. We found integrated-absolute difference values on XES for Ln = La, corresponding to a spin state, decline on the application of pressure, and then it is minimized when the T
c approaches the maximum at around 5 GPa. In contrast, such the optimum value was not detected for Ln = Sm. We reveal that the superconductivity is closely related to the lower spin state for Ln = La unlike Sm case. We observed that As height from the Fe basal plane and As–Fe–As angle on the FeAs4 tetrahedron for Ln = La deviate from the optimum values of the regular tetrahedron in superconducting (SC) phase, which has been widely accepted structural guide to SC thus far. In contrast, the structural parameters were held near the optimum values up to ∼15 GPa for Ln = Sm.
A liquid scintillation analysis method for low-level radioactive wastewater
Authors: Cao Xiaoyan , Lv Ning , Lv Jingxu , Guo Huiping 
Published: April 2021

Abstract
There is currently general concern over low-level radioactive wastewater from the development of nuclear industry. In this paper, a method based on an ultralow-level liquid scintillation spectrometer for measuring uranium radioactivity in low-level radioactive wastewater is proposed. This method can easily and quickly measure the radioactivity level of uranium in samples and can even distinguish the main isotopes of uranium. The liquid scintillation method directly provides results in units of radioactivity activity concentration, which are more convenient for comparison with relevant national standards to determine whether the emission standards are met. The lowest limit of detection of this method is 0.014 Bq l−1 within 600 min.
Pressure evaluation from Lagrangian particle tracking data using a grid-free least-squares method
Authors: Bobrov Maxim , Hrebtov Mikhail , Ivashchenko Vladislav , Mullyadzhanov Rustam , Seredkin Alexander , Tokarev Mikhail , Zaripov Dinar , Dulin Vladimir , Markovich Dmitriy 
Published: April 2021

Abstract
The Lagrangian particle tracking shake-the-box (STB) method provides accurate evaluation of the velocity and acceleration of particles from time-resolved projection images for high seeding densities, giving an opportunity to recover the stress tensor. In particular, their gradients are required to estimate local pressure fluctuations from the Navier–Stokes equations. The present paper describes a grid-free least-squares method for gradient and pressure evaluation based on irregularly scattered Lagrangian particle tracking data with minimization of the random noise. The performance of the method is assessed on the basis of synthetic images of virtual particles in a wall-bound turbulent flow. The tracks are obtained from direct numerical simulation (DNS) of an initially laminar boundary layer flow around a hemisphere mounted on a flat wall. The Reynolds number based on the sphere diameter and free stream velocity is 7000, corresponding to a fully turbulent wake. The accuracy, based on the exact tracks and STB algorithm, is evaluated by a straightforward comparison with the DNS data for different values of particle concentration up to 0.2 particles per pixel. Whereas the fraction of particles resolved by the STB algorithm decreases with the seeding density, limiting its spatial resolution, the exact particle positions demonstrate the efficiency of the least-squares method. The method is also useful for extraction of large-scale vortex structures from the velocity data on non-regular girds.
Ag@ZnO/MWCNT ternary nanocomposite as an active and stable catalyst for the 4-nitrophenol reduction in water
Authors: García-Valdivieso Guadalupe , Arenas-Sánchez Eduardo , Horta-Fraijo Patricia , Simakov Andrey , Navarro-Contreras Hugo R , Acosta Brenda 
Published: April 2021

Abstract
The nitroaromatic compounds, known as organic pollutants, have arising attention due to their carcinogenic character, highly dangerous to human health. In this work, the Ag@ZnO/MWCNT ternary nanocomposite synthesized via conjugation of sonochemical and solvothermal treatments manifests high performance in the reduction of 4-nitrophenol in the aqueous media (TOF value of 246 min−1
μmol metal−1). The incorporation of MWCNT onto the nanocomposite structure favored the reusing of the catalysts even after eight consecutive catalytic runs without catalysts cleaning nor product removal. Obtained samples were characterized by XRD, TEM, UV–vis, Raman and FTIR spectroscopies. It was found that ultrasonic treatment at relatively moderate conditions leads to functionalization of MWCNT, the appearance of C=C and OH groups and change of electronic properties of Ag@ZnO/MWCNT composite which provide its stable material dispersion in aqueous solution and high catalytic performance in the 4-nitrophenol reduction. This technique may be effectively applied for the functionalization of carbon including materials for their usage in an aqueous media.
UHECR mass composition at highest energies from anisotropy of their arrival directions
Authors: Kuznetsov M.Yu. , Tinyakov P.G. 
Published: April 2021

Abstract
We propose a new method for the estimation of ultra-high energy cosmic ray (UHECR) mass composition from a distribution of their arrival directions. The method employs a test statistic (TS) based on a characteristic deflection of UHECR events with respect to the distribution of luminous matter in the local Universe. Making realistic simulations of the mock UHECR sets, we show that this TS is robust to the presence of galactic and non-extreme extra-galactic magnetic fields and sensitive to the mass composition of events in a set. This allows one to constrain the UHECR mass composition by comparing the TS distribution of a composition model in question with the data TS, and to discriminate between different composition models. While the statistical power of the method depends somewhat on the MF parameters, this dependence decreases with the growth of statistics. The method shows good performance even at GZK energies where the estimation of UHCER mass composition with traditional methods is complicated by a low statistics.
Double shadows of reflection-asymmetric wormholes supported by positive energy thin-shells
Authors: Guerrero Merce , Olmo Gonzalo J. , Rubiera-Garcia Diego 
Published: April 2021

Abstract
We consider reflection-asymmetric thin-shell wormholes within Palatini f(R) gravity using a matching procedure of two patches of electrovacuum space-times at a hypersurface (the shell) via suitable junction conditions. The conditions for having (linearly) stable wormholes supported by positive-energy matter sources are determined. We also identify some subsets of parameters able to locate the shell radius above the event horizon (when present) but below the photon sphere (on both sides). We illustrate with an specific example that such two photon spheres allow an observer on one of the sides of the wormhole to see another (circular) shadow in addition to the one generated by its own photon sphere, which is due to the photons passing above the maximum of the effective potential on its side and bouncing back across the throat due to a higher effective potential on the other side. We finally comment on the capability of these double shadows to seek for traces of new gravitational physics beyond that described by General Relativity.
Coherent near-infrared light generation based on self-seeded parametric four-wave mixing in Rb vapor
Authors: Wang Xuewen , Yuan Jinpeng , Wang Lirong , Xiao Liantuan , Jia Suotang 
Published: April 2021

Abstract
We demonstrate 1.37 µm coherent near-infrared light generation via self-seeded parametric four-wave mixing (FWM) process in Rb atomic vapor. Two lasers (780 nm and 776 nm) in the co-propagating configuration, drive the Rb atoms from the 5S1/2 ground state to the 5D5/2 excited state. The parametric FWM around the 5P3/2–5D5/2–6P3/2–6S1/2–5P3/2 transition loop is effectively established under phase matching conditions. The generated coherent light wavelength is confirmed using an optical spectrum analyzer, and the output power is investigated with the input laser frequency, power and atomic density. Consequently, a 1.37 µm coherent light with the power of 27 µW and the beam quality of

M
x
2

= 1.22 and

M
y
2

= 1.25 is obtained. An additional 795 nm laser is introduced to enhance the output power by 1.5 times through velocity-selective optical hyperfine repumping.
Determination of responses of liquid xenon to low energy electron and nuclear recoils using a PandaX-II detector *
Authors: Yan Binbin , Abdukerim Abdusalam , Chen Wei , Chen Xun , Chen Yunhua , Cheng Chen , Cui Xiangyi , Fan Yingjie , Fang Deqing , Fu Changbo , Fu Mengting , Geng Lisheng , Giboni Karl , Gu Linhui , Guo Xuyuan , Han Ke , He Changda , Huang Di , Huang Peiyao , Huang Yan , Huang Yanlin , Huang Zhou , Ji Xiangdong , Ju Yonglin , Li Shuaijie , Liu Jianglai , Lei Zhuoqun , Ma Wenbo , Ma Yugang , Mao Yajun , Meng Yue , Ni Kaixiang , Ning Jinhua , Ning Xuyang , Ren Xiangxiang , Shang Changsong , Si Lin , Shen Guofang , Tan Andi , Wang Anqing , Wang Hongwei , Wang Meng , Wang Qiuhong , Wang Siguang , Wang Wei , Wang Xiuli , Wang Zhou , Wu Mengmeng , Wu Shiyong , Wu Weihao , Xia Jingkai , Xiao Mengjiao , Xie Pengwei , Yan Rui , Yang Jijun , Yang Yong , Yu Chunxu , Yuan Jumin , Yuan Ying , Yue Jianfeng , Zeng Xinning , Zhang Dan , Zhang Tao , Zhao Li , Zheng Qibin , Zhou Jifang , Zhou Ning , Zhou Xiaopeng , (PandaX-II Collaboration)  
Published: April 2021

Abstract
We present a systematic determination of the responses of PandaX-II, a dual phase xenon time projection chamber detector, to low energy recoils. The electron recoil (ER) and nuclear recoil (NR) responses are calibrated, respectively, with injected tritiated methane or 220Rn source, and with 241Am-Be neutron source, in an energy range from 1-25 keV (ER) and 4-80 keV (NR), under the two drift fields, 400 and 317 V/cm. An empirical model is used to fit the light yield and charge yield for both types of recoils. The best fit models can describe the calibration data significantly. The systematic uncertainties of the fitted models are obtained via statistical comparison to the data.
Crust-core transition and dynamical instabilities in neutron stars for model with point-coupling interactions *
Authors: Chen Yan-jun , Cheng Zi-peng , He Bin-guang 
Published: April 2021

Abstract
We explore the effects of the density dependence of symmetry energy on the crust-core phase transition and dynamical instabilities in cold and warm neutron stars in the relativistic mean field (RMF) theory with point-coupling interactions using the Vlasov approach. The role of neutrino trapping is also considered. The crust-core transition density and pressure, distillation effect, and cluster size and growth rates are discussed. The present work shows that the slope of symmetry energy at saturation, temperature, and neutrino trapping have non-negligible effects.