Ecological drought monitoring of Inner Mongolia vegetation growing season based on kernel temperature vegetation drought index (kTVDI).

Ecological drought monitoring is important for regional status assessment and protection of water resources. In this study, we constructed a new ecological drought index, the kernel temperature vegetation drought index (kTVDI), by using the kernel normalized vegetation index (kNDVI) to improve the temperature vegetation drought index (TVDI) in Inner Mongolia. We further analyzed the spatial and temporal distribution of ecological drought in Inner Mongolia during 2000-2022 and the future trend of ecological drought by using segmented linear regression model, Theil-Sen median, Mann-Kendall test, and Hurst index.

The value of elevated cerebrospinal fluid lactate concentrations in post-neurosurgical bacterial meningitis.

Bacterial meningitis is a serious complication after neurosurgery and has a high mortality rate. Early diagnosis and timely treatment are crucial or will have disastrous consequences. The classic triad of bacterial meningitis lacks sensitivity and specificity.

Application of temperature vegetation dryness index for drought monitoring in Mongolian Plateau.

Taking the Mongolian Plateau as the study area, the MODIS normalized difference vegetation index (NDVI) and the land surface temperature (LST) in the growing season from 2000 to 2019 were used to construct the NDVI-LST feature space, and based on which the temperature vege-tation dryness index (TVDI) of the Mongolian Plateau was calculated. We used Theil-Sen Median trend analysis, Mann-Kendall test, and Hurst index method to analyze the spatial and temporal varia-tions and future trends of TVDI on the Mongolian Plateau. Furthermore, we examined the relationship between meteorological factors and TVDI on the Mongolian Plateau using partial correlation analysis.

Development of a novel rat model of heterogeneous hepatic injury by injection with colchicine the splenic vein.

Aim: To develop a novel rat model of heterogeneous hepatic injury.

Methods: Seventy male Sprague-Dawley rats were randomly divided into a control group ( = 10) and a colchicine group ( = 60). A 0.

[Measurement and analysis of reflected information from crops canopy suffering from wind disaster influence].

The corn in the grain filling stage fell over in the central region of Jilin province by the Typhoon Bolaven influence. In order to determine the impact of falling over corn canopy on the reflected information, the hyperspectral reflectance was detected at different viewing zenith angles, at the same time, the polarized reflection was also measured. The results from the analysis by combining the reflection and polarization from corn canopy showed that the reflection of falling over corn is low in visible, while increases in the near infrared wavelength.

[Receptor-ligand analysis of killer cell Ig-like receptor in Jiangsu Han population].

Aim: To investigate the distribution of killer cell immunoglobulin-like receptor (KIR) and its specific ligand human leukocyte antigen (HLA) in Jiangsu Han population.

Methods: 173 samples from unrelated healthy individuals of Jiangsu Han population were genotyped and observed for KIR, HLA-Cw and HLA-Bw4 using a SYBR Green I real-time PCR and PCR-SSP method, respectively. The number and type of KIR/HLA pairs inherited in each individual were analyzed.

[Detection for KIR gene with use of SYBR green I real-time PCR].

Aim: To develope a novel real-time PCR method for KIR genotyping.

Methods: KIR genotyping is performed using 16 real-time PCR reactions, each containing two-three KIR-specific primers, a pair of internal positive control primers and a fluorescence dye, SYBR Green I. By the analysis of the Tm and the characteristic of the melting curve of the amplified products, we identified the presence or absence of 16 KIR genes.

[Effect of the immune strategy based on BCG priming and Ag85A/GM-CSF DNA vaccine boosting in mice].

Aim: To investigate immune effect in mice on the basis of BCG priming and DNA vaccine boosting, and to provide a new strategy for development of new type of anti-tuberculosis DNA vaccine further.

Methods: After mice were inoculated with BCG of 1x10(6) clone formation unit each three weeks, 100 microg of DNA vaccine was injected intramuscularly in mice two times at 3 week intervals. The proliferative responses of murine cytotoxic T lymphocytes (CTL), natural killer (NK) and spleen cell to antigen 85A(Ag85A) were measured by MTT method respectively.

[Anti-tumor mechanisms of Sp2/0 tumor vaccine transfected with mIL-21 gene in mice].

Aim: To explore the anti-tumor mechanism of Sp2/0-mIL-21 tumor vaccine in mice.

Methods: The molecules of MHC-I and CD80 on the surface of Sp2/0-mIL-21 tumor vaccine were detected by flow cytometry (FCM) respectively. A flow cytometric CFSE-7-AAD cytotoxicity assay was used to detect the cytotoxic activities of NK cells and CTLs.

[2000 Chinese total dietary study--the dietary arsenic intakes].

Objective: To assess the safety of dietary arsenic intakes in different areas in China.

Methods: Using the total dietary study method, the analytical samples were obtained in different areas by food consumption survey, food aggregation, food sampling and preparation. The levels of dietary total and inorganic arsenic were determined by the hydride generation atomic absorption spectrometry and atomic fluorospectrophotometry.