Feedback-corrected laser micromachining based on depth monitoring using laser triangulation.

Conventional laser micromachining technologies rely on trial-and-error optimization to obtain precise surface geometry. In this study, we present a laser micromachining setup that enables the preparation of the desired surface geometry without the need for parameter exploration. The setup consists of a laser scanning system, a coaxial imaging system, a paraxial laser line projector, and a three-axis stage.

Prevalence and influencing factors of occupational burnout among healthcare workers in the Chinese mainland during the late 2022 Omicron COVID-19 outbreak: a multicenter cross-sectional study.

China witnessed an Omicron COVID-19 outbreak at the end of 2022. During this period, medical crowding and enormous pressure on the healthcare systems occurred, which might result in the occurrence of occupational burnout among healthcare workers (HCWs). This study aims to investigate the prevalence of occupational burnout and associated mental conditions, such as depressive symptoms, anxiety, PTSD symptoms, perceived social support, resilience, and mindfulness among HCWs of the Chinese mainland during the Omicron COVID-19 outbreak, and to explore the potential risk and protective factors influencing occupational burnout of HCWs.

Study on metabolic disorders in rat liver induced by different times after scalds.

Previous studies have confirmed that burns and scalds can lead to metabolic disorders in the liver. However, the effects of severe burns at various time points on liver lipid metabolism disorders, as well as the relationship between these disorders and liver function, metabolism, and infection, have not yet been investigated.This study established a SD rat scald model, macroscopic observation of weight changes, histological staining, Western blot detection of fat browning and metabolic indicators, reverse transcription quantitative polymerase chain reaction analysis of the expression of liver new fat generation genes, determination of liver function and inflammatory indicators.

PSMA-Targeted Intracellular Self-Assembled Probe for Enhanced PET Imaging.

Positron-emission tomography (PET) offers high sensitivity for cancer diagnosis. However, small-molecule-based probes often exhibit insufficient accumulation in tumor sites, while nanoparticle-based agents typically have limited delivery efficiency. To address this challenge, this study proposes a novel PET imaging probe, Ga-CBT-PSMA, designed for prostate cancer.

Comparison of the safety of esophagojejunal overlap and π-shaped anastomosis in totally laparoscopic total gastrectomy.

Background: Globally, totally laparoscopic total gastrectomy is increasingly being accepted by surgeons for the treatment of gastric cancer. Overlap anastomosis and π-shaped anastomosis are the two most commonly used anastomosis methods in total laparoscopic surgery; however, their safety and suitability for the population are still unclear.

Methods: A total of 162 consecutive patients with gastric cancer who underwent total laparoscopic total gastrectomy with overlap or π-shaped anastomosis were retrospectively analyzed.