Activating the Mn Single Atomic Center for an Efficient Actual Active Site of the Oxygen Reduction Reaction by Spin-State Regulation.

The ligand engineering for single-atom catalysts (SACs) is considered a cutting-edge strategy to tailor their electrocatalytic activity. However, the fundamental reasons underlying the reaction mechanism and the contemplation for which the actual active site for the catalytic reaction depends on the pyrrolic and pyridinic N ligand structure remain to be fully understood. Herein, we first reveal the relationship between the oxygen reduction reaction (ORR) activity and the N ligand structure for the manganese (Mn) single atomic site by the precisely regulated pyrrolic and pyridinic N coordination environment.

Designing and Evaluating a Portable UV-LED Vane Trap to Expedite Arthropod Biodiversity Discovery.

A novel design of a portable funnel light trap (PFLT) was presented for collecting insects in ecological studies. The trap consists of a compact plastic box equipped with a light source and power source, along with two plastic polypropylene interception vanes. The PFLT costs 18.

Insecticidal Activity of 28 Essential Oils and a Commercial Product Containing Bark Essential Oil against Motschulsky.

Maize weevils, , are stored product pests mostly found in warm and humid regions around the globe. In the present study, acute toxicity via contact and residual bioassay and fumigant bioassay of 28 essential oils as well as their attraction-inhibitory activity against the adults of were evaluated. Chemical composition of the essential oils was analyzed by gas chromatography-mass spectrometry, and a compound elimination assay was conducted on the four most active oils (cinnamon, tea tree, ylang ylang, and marjoram oils) to identify major active constituents.

Dry sauna therapy is beneficial for patients with low back pain.

Background: Dry sauna has been very popular as an alternative therapy for promoting health among people who want to improve their health condition without relying on pharmaceuticals. The aim of this study was to investigate whether dry sauna therapy improved quality of life and reduced pain in participants with low back pain.

Methods: Study participants comprised a total of 37 consecutive patients who were over 20 years of age with low back pain.

Effect of medications and epidural steroid injections on fractures in postmenopausal women with osteoporosis.

Osteoporosis is a common problem, especially among postmenopausal women. Postmenopausal women with osteoporosis have major risk factors for osteoporotic fractures. The abuse of epidural steroid injections (ESIs) or the misunderstanding of their proper use could cause osteoporotic fractures.