Humanistic care ability and its influencing factors among Chinese surgical nurses.

Aim: This paper aims to investigate the humanistic care ability among surgical nurses in China and identify its statistically significant influencing factors.

Design: A cross-sectional, descriptive and correlational design was used.

Methods: A total of 210 surgical nurses were recruited from a tertiary public hospital in Wuhu, Anhui Province.

Global Burden of Cardiovascular Disease Attributable to High Temperature in 204 Countries and Territories from 1990 to 2019.

Objective: This study aimed to estimate spatiotemporal variations of global heat-related cardiovascular disease (CVD) burden from 1990 to 2019.

Methods: Data on the burden of heat-related CVD were derived from the Global Burden of Disease Study 2019. Deaths and disability-adjusted life years (DALYs) were used to quantify heat-induced CVD burden.

[Water Quality and Bacterial Population Driving Mechanism of Algae Vertical Succession in Stratified Reservoir].

Phytoplankton and bacteria are important components of the aquatic food web, and play a critical role in substance circulation and energy exchange in freshwater ecosystems. The succession of algae is closely related to the metabolism and structural succession of bacterial populations in the water column. Thus, in this study, the vertical succession characteristics of phytoplankton and bacteria community structure and their coupling with water quality were investigated during an algal bloom in the Lijiahe Reservoir using high-throughput DNA sequencing and Biolog technologies.

[Spatial and Temporal Succession Characteristics of Aerobic Anoxygenic Photosynthesis Bacteria in a Stratified Reservoir].

Aerobic anoxygenic photosynthesis bacteria (AAPB) play a significant role in the material circulation of the hydrosphere, with diverse community structure and unique metabolic functions. To investigate the spatial and temporal succession characteristics of AAPB abundance and community structure in Jinpen Reservoir, a quantitative real-time polymerase chain reaction and Illumina MiSeq high-throughput sequencing technique targeting the gene were applied. Furthermore, redundancy analysis was used to determine the influence of environmental factors on their community structure.

[Knowledge structure of lumbago's symptoms and employed acupoints in book based on Weka preprocessing association rules].

Objective: To dig the knowledge structure of lumbago's symptoms and acupoints in book and in order to provide a possible scientific method for exploring their combination regularities in ancient Chinese medical books about acupuncture-moxibustion, and to investigate the feasibility and scientificity of the "association rule" in trimming the related ancient medical books and records.

Methods: The articles about lumbago's symptoms and employed acupoints were screened from classic me-dical book and , followed by establishing a database. Then, the bidimensional correlation analysis about the lumbago-symptoms and symptoms-acupoints was conducted by using Apriori algorithm of Weka3.

[δ¹⁵N-NO₃⁻ and δ¹⁸O-NO₃⁻ Tracing of Nitrate Sources in Beijing Urban Rivers].

In order to quantitatively identify sources of nitrate pollution in Beijing urban area and provide effective guidance for relevant departments to control the pollution of Beijing rivers, δ¹⁵N-NO₃⁻ and δ¹⁸O-NO₃⁻ isotope tracing method was used to analyze the composition of nitrogen and oxygen stable isotopes from nitrate in Beijing urban river. Besides, stable isotope mixing model was adopted to track nitrogen sources of nitrate in Beijing urban rivers and the contribution rates of respective pollution sources were evaluated. The results showed that: (1) NO₃⁻-N pollution was the main inorganic nitrogen pollution in Beijing rivers and pollution of downstream was more serious than that of upstream.