Genomic surveillance of emerging SARS-CoV-2 Omicron variations in Tianjin Municipality, China 2022.

The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has severely impacted public health. In 2022, the Omicron variant of SARS-CoV-2 rapidly became the dominant circulating variant in the local COVID-19 outbreaks in Tianjin Municipality, China. To gain a deeper understanding of the genetic variations of the Omicron variant in Tianjin, specimens from individuals who tested positive for SARS-CoV-2 between December 2021 and November 2022 were used for virus whole genome sequencing and phylogenetic analysis.

A compact single layer dual band microstrip patch antenna for 5G terminal applications.

In modern applications, the shrinking available space on terminals coupled with the increasing number of frequency bands has prompted the greatest demand for antenna miniaturization and multi-band features. This work introduces an innovative method for designing a dual-band planar antenna with an exceptionally compact size, addressing the pressing requirement. Two half-mode patches, both operating in two modes (TM of 3.

Electrophysiological signatures underlying variability in human memory consolidation.

We experience countless pieces of new information each day, but remembering them later depends on firmly instilling memory storage in the brain. Numerous studies have implicated non-rapid eye movement (NREM) sleep in consolidating memories via interactions between hippocampus and cortex. However, the temporal dynamics of this hippocampal-cortical communication and the concomitant neural oscillations during memory reactivations remains unclear.

Global research trends in the intestinal microflora and depression: bibliometrics and visual analysis.

Background: In recent years, the relationship between gut microbiota and human health has garnered significant attention. Notably, the potential connection between gut microbiota and mental health issues, such as depression and anxiety, has emerged as a new focal point for research. While some studies suggest a possible link between these factors, the field remains in its early stages of development, and there are notable methodological and sample size limitations.

Temporal and Spatial Effects of Extreme Drought Events on Human Epidemics over Ancient China in 1784-1787 CE.

Extreme drought events can impact human health, notably triggering epidemics that impose significant global health and economic burdens. Understanding these effects and developing response strategies is crucial. However, there is limited epidemiological evidence on how climate change influenced ancient epidemics before large-scale urbanization and frequent population movements.