Influence of impact velocity and impact attack angle of bullets on damage of human tissue surrogate -- ballistic gelatin.

Purpose: Terminal performance of a bullet in human body is critical for the treatment of gunshot injury and optimization of bullet design. The effects of the impact velocity (v) and the impact attack angle (δ) of the bullet on its terminal performance was investigated, using a new evaluation method (called expansion method) based on the expansion of cracks and the permanent cavity wall in ballistic gelatin.

Methods: Ballistic gelatin was used to simulate human body.

Micro RNAs and the biological clock: a target for diseases associated with a loss of circadian regulation.

Background: Circadian clocks are self-sustaining oscillators that coordinate behavior and physiology over a 24 hour period, achieving time-dependent homeostasis with the external environment. The molecular clocks driving circadian rhythmic changes are based on intertwined transcriptional/translational feedback loops that combine with a range of environmental and metabolic stimuli to generate daily internal programing. Understanding how biological rhythms are generated throughout the body and the reasons for their dysregulation can provide avenues for temporally directed therapeutics.

Effectiveness of Cotreatment with Kuntai Capsule and Climen for Premature Ovarian Failure: A Meta-Analysis.

Objective: To compare the treatment efficacy of Kuntai capsule with Climen only in the therapy of premature ovarian failure.

Methods: Randomized controlled trials were electronically retrieved from PubMed, Cochrane Library, Web of science, CBM, CNKI, Wanfang, and Weipu database. In addition, some related papers were manually checked.