Programmed Internal Reconfigurations in a 3D-Printed Mechanical Metamaterial Enable Fluidic Control for a Vertically Stacked Valve Array.

Microfluidic valves play a key role within microfluidic systems by regulating fluid flow through distinct microchannels, enabling many advanced applications in medical diagnostics, lab-on-chips, and laboratory automation. While microfluidic systems are often limited to planar structures, 3D printing enables new capabilities to generate complex designs for fluidic circuits with higher densities and integrated components. However, the control of fluids within 3D structures presents several difficulties, making it challenging to scale effectively and many fluidic devices are still often restricted to quasi-planar structures.

In-hospital cardiac arrest incidence and outcomes in the era of COVID-19: an observational study in a Singapore hospital.

Background: COVID-19 pandemic has resulted in significant strain on healthcare resources and this requires diligent resource re-allocation. We aim to describe the incidence and outcomes of in-hospital cardiac arrest (IHCA) during this period as compared to non-pandemic period.

Methods: We conducted a retrospective study in a tertiary care hospital in Singapore.

Impact of implementing novel automated code blue activation system on in-hospital cardiac arrest: A single center study.

Background: Prompt identification and management of patients having clinical deterioration on wards is one of the key steps to reduce in-hospital cardiac arrests (IHCA). Our organization implemented a novel Automated Code Blue Alert and Activation (ACBAA) system since 1st March 2018.

Methods: We conducted a retrospective before-and-after ACBAA system implementation study in JurongHealth Campus (JHC) of National University Health system (NUHS), Singapore.

Electrolytes for Lithium- and Sodium-Metal Batteries.

High-energy-density batteries have attracted significant attention due to the huge demand in electric transportation in future. Metal-based batteries, especially lithium metal batteries (LMBs) and sodium metal batteries (SMBs), have been hot research topics nowadays. The uncontrolled growth of metal dendrites has retarded the development of LMBs and SMBs.

2020 Roadmap on Carbon Materials for Energy Storage and Conversion.

Carbon is a simple, stable and popular element with many allotropes. The carbon family members include carbon dots, carbon nanotubes, carbon fibers, graphene, graphite, graphdiyne and hard carbon, etc. They can be divided into different dimensions, and their structures can be open and porous.

Ionic Liquid Assisted Electrospinning of Porous LiFe Mn PO /CNFs as Free-Standing Cathodes with a Pseudocapacitive Contribution for High-Performance Lithium-Ion Batteries.

In pursuit of high-performance cathode materials for lithium-ion batteries with high energy and power densities, porous LiFe Mn PO /CNF free-standing electrodes have been successfully prepared through a facile ionic liquid (IL) assisted electrospinning method. Owing to the hierarchical porosity and N-doped carbon layer derived from the ionic liquid, the resulting electrodes exhibited superior electrochemical performances with an improvement of conductivity and pseudocapacitive contribution, delivering a discharge capability of 162.7, 133.

New Insights on the Fast Response of Poly(Ionic Liquid)s to Humidity: The Effect of Free-Ion Concentration.

The swelling mechanism is widely used to explain the response of ionic liquids (ILs) or poly(ionic liquid)s (PILs) to moisture. While a fairly broad consensus has been attained, there are still some phenomena that are not well explained. As a complement to the swelling mechanism, we systematically studied the free volume theory in the rapid response and recovery of PIL humidity performance.

Antihistamines prescribed off-label among paediatric patients at a tertiary care hospital setting in Malaysia.

Background Antihistamines are widely prescribed to children but should be used with caution in young children. Objective To determine the paediatric prescribing pattern of antihistamines with a focus on the off-label prescribing and factors that influence such prescribing. Setting Paediatric wards of a tertiary care hospital setting in Malaysia.

Basic critical care echocardiography by pulmonary fellows: learning trajectory and prognostic impact using a minimally resourced training model*.

Objectives: The spread of basic critical care echocardiography may be limited by training resources. Another barrier is the lack of information about the learning trajectory and prognostic impact of individual basic critical care echocardiography domains like acute cor pulmonale determination and left ventricular function estimation. We thus developed a minimally resourced training model and studied the latter outcomes.