Charles Bernando
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View article: Understanding Arteriosclerotic Heart Disease Patients Using Electronic Health Records: A Machine Learning and Shapley Additive exPlanations Approach
Understanding Arteriosclerotic Heart Disease Patients Using Electronic Health Records: A Machine Learning and Shapley Additive exPlanations Approach Open
Objectives: The number of deaths from cardiovascular disease is projected to reach 23.3 million by 2030. As a contribution to preventing this phenomenon, this paper proposed a machine learning (ML) model to predict patients with arterioscl…
View article: The Impact of Using Digital Banks on Gen Z Financial’s
The Impact of Using Digital Banks on Gen Z Financial’s Open
Digital banks make it easier for a society to grow financial inclusion.The lack of digital literacy makes people still skeptical about the security of new technologies.This study aims to examine the impact of digital banking on gen z in In…
View article: Anisotropic Surface Broadening and Core Depletion during the Evolution of a Strong-Field Induced Nanoplasma
Anisotropic Surface Broadening and Core Depletion during the Evolution of a Strong-Field Induced Nanoplasma Open
Strong-field ionization of nanoscale clusters provides excellent opportunities to study the complex correlated electronic and nuclear dynamics of near-solid density plasmas. Yet, monitoring ultrafast, nanoscopic dynamics in real-time is ch…
View article: Sizes of pure and doped helium droplets from single shot x-ray imaging
Sizes of pure and doped helium droplets from single shot x-ray imaging Open
Advancements in x-ray free-electron lasers on producing ultrashort, ultrabright, and coherent x-ray pulses enable single-shot imaging of fragile nanostructures, such as superfluid helium droplets. This imaging technique gives unique access…
View article: Angular Momentum in Rotating Superfluid Droplets
Angular Momentum in Rotating Superfluid Droplets Open
The angular momentum of rotating superfluid droplets originates from quantized vortices and capillary waves, the interplay between which remains to be uncovered. In this work, the rotation of isolated submicrometer superfluid 4He droplets …
View article: Evaporation of an anisotropic nanoplasma
Evaporation of an anisotropic nanoplasma Open
Intense laser induced plasma dynamics in sub-micron scale helium droplets are monitored by femtosecond time-resolved X-ray coherent diffractive imaging. Anisotropic surface softening and strongly anisotropic shrinking of the plasma core ar…
View article: Shapes of rotating superfluid helium nanodroplets
Shapes of rotating superfluid helium nanodroplets Open
Rotating superfluid He droplets of approximately 1 μm in diameter were obtained in a free nozzle beam expansion of liquid He in vacuum and were studied by single-shot coherent diffractive imaging using an x-ray free electron laser. The for…
View article: Vorticity in superfluid helium nanodroplets
Vorticity in superfluid helium nanodroplets Open
Starting from Newton, the equilibrium shapes of rotating classical bodies held together by gravitation has been extensively studied theoretically. It was also shown that shapes of rotating droplets held together by surface tension belong t…
View article: Coupled motion of Xe clusters and quantum vortices in He nanodroplets
Coupled motion of Xe clusters and quantum vortices in He nanodroplets Open
Single He nanodroplets doped with Xe atoms are studied via ultrafast coherent x-ray diffraction imaging. The diffraction images show that rotating He nanodroplets about 200 nm in diameter contain a small number of symmetrically arranged qu…
View article: Communication: X-ray coherent diffractive imaging by immersion in nanodroplets
Communication: X-ray coherent diffractive imaging by immersion in nanodroplets Open
Lensless x-ray microscopy requires the recovery of the phase of the radiation scattered from a specimen. Here, we demonstrate a de novo phase retrieval technique by encapsulating an object in a superfluid helium nanodroplet, which provides…