Determinants of work stress among emergency department nurses in Sleman, Yogyakarta, Indonesia.

Background: The nursing field is the fourth most stressful occupation in the health sector. Emergency department nurses often face crises and unpredictable situations that can negatively affect their quality of life and the quality of care. This study aimed to investigate the determinants of work stress among ED nurses in Sleman, Yogyakarta, Indonesia.

Physical and Chemical Properties of Lignin Isolated from Pulp Mill Byproduct for Potential Application in Wood Composites.

The efficient isolation process and understanding of lignin properties are essential to determine key features and insights for more effective lignin valorization as a renewable feedstock for the production of bio-based chemicals including wood adhesives. This study successfully used dilute acid precipitation to recover lignin from black liquor (BL) through a single-step and ethanol-fractionated-step, with a lignin recovery of ~35% and ~16%, respectively. The physical characteristics of lignin, i.

Challenges Associated with Formulation of Urban-Based Food and Nutrition Policy in Surabaya City, Indonesia.

Following the enactment of Law No. 18/2012 on Food, the Govenment of Indonesia mandated all districts/cities to translate a 5-yearly National Food and Nutrition Action Plan to address food security and nutrition problems suited with the local context. However, until 2019 only 18 of 514 districs/cities that has manifested this mandate.

Symmetry groups associated with tilings on a flat torus.

This work investigates symmetry and color symmetry properties of Kepler, Heesch and Laves tilings embedded on a flat torus and their geometric realizations as tilings on a round torus in Euclidean 3-space. The symmetry group of the tiling on the round torus is determined by analyzing relevant symmetries of the planar tiling that are transformed to axial symmetries of the three-dimensional tiling. The focus on studying tilings on a round torus is motivated by applications in the geometric modeling of nanotori and the determination of their symmetry groups.

Symmetry groups of single-wall nanotubes.

This work investigates the symmetry properties of single-wall carbon nanotubes and their structural analogs, which are nanotubes consisting of different kinds of atoms. The symmetry group of a nanotube is studied by looking at symmetries and color fixing symmetries associated with a coloring of the tiling by hexagons in the Euclidean plane which, when rolled, gives rise to a geometric model of the nanotube. The approach is also applied to nanotubes with non-hexagonal symmetry arising from other isogonal tilings of the plane.