Weiqing Zhang

Dalian Institute of Chemical Physics

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Xueming Yang

Dalian Institute of Chemical Physics

Guorong Wu

Dalian Institute of Chemical Physics

Jiayue Yang

Dalian Institute of Chemical Physics

Yong Yu

St. John's University

Yao Chang

Chinese Academy of Sciences

Kaijun Yuan

Chinese Academy of Sciences

Zhichao Chen

Dalian Institute of Chemical Physics

William Perrie

Bedford Institute of Oceanography

Xixi Hu

Nanjing Normal University

Daiqian Xie

Nanjing University

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Chinese Academy of Sciences

Dalian Institute of Chemical Physics

University of Chinese Academy of Sciences

University of Science and Technology of China

State Key Laboratory of Molecular Reaction Dynamics

Guangxi Medical University

Nanjing University

Dalian University

Shanghai Jiao Tong University

Southern University of Science and Technology

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Changes in muscle ultrasound for the diagnosis of intensive care unit acquired weakness in critically ill patients

Scientific Reports (2021)

Weiqing Zhang Jun Wu Qiuying Gu Yanting Gu Yujin Zhao

Abstract To test diagnostic accuracy of changes in thickness (TH) and cross-sectional area (CSA) of muscle ultrasound for diagnosis of intensive care unit acquired weakness (ICU-AW). Fully conscious patients were subjected to muscle ultrasonography including measuring the changes in TH and CSA of biceps brachii (BB) muscle, vastus intermedius (VI) muscle, and rectus femoris (RF) muscles over time. 37 patients underwent muscle ultrasonography on admission day, day 4, day 7, and day 10 after ICU admission, Among them, 24 were found to have ICW-AW. Changes in muscle TH and CSA of RF muscle on the right side showed remarkably higher ROC-AUC and the range was from 0.734 to 0.888. Changes in the TH of VI muscle had fair ROC-AUC values which were 0.785 on the left side and 0.779 on the right side on the 10th day after ICU admission. Additionally, Sequential Organ Failure Assessment (SOFA), Acute Physiology, and Chronic Health Evaluation II (APACHE II) scores also showed good discriminative power on the day of admission (ROC-AUC 0.886 and 0.767, respectively). Ultrasonography of changes in muscles, especially in the TH of VI muscle on both sides and CSA of RF muscle on the right side, presented good diagnostic accuracy. However, SOFA and APACHE II scores are better options for early ICU-AW prediction due to their simplicity and time efficiency.

Muscle weakness

10.1038/s41598-021-97680-y

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Three-Body Photodissociation of Water Molecule: An Important Prebiotic Oxygen Source

Research Square (Research Square) (2021)

Yao Chang Yong Yu Feng An Zijie Luo Donghui Quan

Abstract The provenance of oxygen on the Earth and other Solar planetary bodies is a fundamental issue. It has been widely accepted that the only prebiotic pathway to produce oxygen in the Earth’s primitive atmosphere was via vacuum ultraviolet (VUV) photodissociation of CO 2 and subsequent two O atom recombination. Here, we provide experimental evidence of three-body dissociation (TBD) of H 2 O to produce O atoms in both 1 D and 3 P states upon vacuum ultraviolet (VUV) excitation using the newly developed tunable VUV free electron laser. Experimental results show that the TBD is the dominant pathway in the VUV H 2 O photochemistry at wavelengths between 90 and 107.4 nm. The relative abundance of water in the interstellar space with its exposure to intense VUV radiation suggests that the TBD of H 2 O and subsequent O atoms recombination should be an important prebiotic O 2 -production, which may need to be incorporated into interstellar photochemical models.

Ultraviolet

Dissociative recombination

10.21203/rs.3.rs-124069/v1

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A Longitudinal Study of Posttraumatic Stress Disorder Symptoms and Its Relationship with Coping Skill and Locus of Control in Adolescents after an Earthquake in China

PLoS ONE (2014)

Weiqing Zhang Hui Liu Xiaolian Jiang Dongmei Wu Yali Tian

Post-traumatic stress disorder is a common psychological maladaptation among adolescents after undergoing an earthquake. Knowledge about the prevalence and maintenance of post-traumatic stress disorder symptoms and the changes of its predictors over time can help medical providers assist adolescent survivors with mitigating long-term impacts. This study examined the changes in posttraumatic stress disorder symptoms and its relationship with coping skill and locus of control among adolescent earthquake survivors in China.The study used an observational longitudinal design. A total of 1420 adolescents were evaluated twice after the earthquake by using the Post-traumatic stress disorder Checklist-Civilian Version, The Internality, Powerful others and Chance scale and the Coping Styles Scale. The results indicated that the mean scores of posttraumatic stress disorder symptoms were decreased significantly and the positive rates of posttraumatic stress disorder symptoms also declined remarkably at 17 months compared to the 3 months post-earthquake. Internality locus of control and problem solving coping skill were effective resilient factors for the development and maintenance of posttraumatic stress disorder symptoms, while chance locus of control was a powerful risk factor of posttraumatic stress disorder symptoms as well as being female, being injured and property loss.Continuous screening is recommended to identify adolescent earthquake survivors with posttraumatic stress disorder symptoms. More attention should be paid to adolescent survivors who are prone to adopt passive coping strategies responding to trauma events and who own external causal attribution.

Locus of control

Maladaptation

Acute Stress Disorder

10.1371/journal.pone.0088263

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Citations (90)