Physical education teaching scheduling technology based on chaotic genetic algorithm.

In the modern educational environment, rational and efficient course scheduling is of great significance in ensuring teaching quality and improving resource utilization. The traditional sports scheduling methods are faced with the challenges of diversified demands and complex constraints. For this reason, the study proposes a new physical education course scheduling model after mathematically modeling the physical education scheduling model and improving the genetic environment based on chaotic genetic algorithm, and then proposes a new physical education course scheduling model.

AIMER: A SNP-independent software for identifying imprinting-like allelic methylated regions from DNA methylome.

Genomic imprinting is essential for mammalian growth and embryogenesis. High-throughput bisulfite sequencing accompanied with parental haplotype-specific information allows analysis of imprinted genes and imprinting control regions (ICRs) on a large scale. Currently, although several allelic methylated regions (AMRs) detection software were developed, methods for detecting imprinted AMRs is still limited.

Design of Teaching Quality Analysis and Management System for PE Courses Based on Data-Mining Algorithm.

Advances in network technology have led to extensive information technology construction work in all walks of life; universities, as a key component of national development, cannot be overlooked in this regard. In today's universities, the Web-based integrated academic management information system is widely used, promoting higher education management system innovation and improving the management level of education departments and teaching management. The traditional management mode is incapable of locating "knowledge" in the mountains of student transcripts, and the original management mode must be improved.

Rif1 and Hmgn3 regulate the conversion of murine trophoblast stem cells.

The appearance of trophectoderm (TE) is a hallmark event in preimplantation development during murine embryogenesis. However, little is known about the mechanisms underlying TE specification. We find that the depletion of Rif1 breaks down the barrier to the transition from embryonic stem cells (ESCs) to trophoblast stem cells (TSCs).

Toxicity of ionic liquids on the growth, reproductive ability, and ATPase activity of earthworm.

To evaluate the toxicity of the ionic liquid 1-methyl-3-octylimidazolium bromide ([C(8)mim]Br) to Eisenia foetida, effects of [C(8)mim]Br on the growth, reproductive ability, and adenosine triphosphatase (ATPase) activity of earthworms were determined under laboratory conditions using artificial soil as substrate. The results showed that [C(8)mim]Br in high concentrations significantly inhibited the growth of the earthworms. These effects were enhanced with prolonged exposure to and increasing concentration of [C(8)mim]Br.

Effects of 1-methyl-3-octylimidazolium bromide on the anti-oxidant system of earthworm.

The activity changes of anti-oxidant enzymes and the levels of glutathione and malondialdehyde were determined when Eisenia foetida were exposed to different concentrations of 1-methyl-3-octylimidazolium bromide for 14d. The results showed catalase activity in all treatment groups was elevated significantly after 1d of exposure, and superoxide dismutase activity in higher-dosage groups (120 and 160mgkg(-1)) was increased at 3d post-exposure. On the 7thd, the activity of glutathione-S-transferase in the 20 and 40mgkg(-1) dosage groups was inhibited while increased in the 80 and 160mgkg(-1) groups compared with the control groups.

The toxic effects of ionic liquids on the activities of acetylcholinesterase and cellulase in earthworms.

The earthworm Eisenia foetida was exposed to different concentrations of imidazolium ionic liquids with varying chain lengths according to the method of OECD [OECD, 1984. (The Current Organization of Economic and Cooperative Development Acute Earthworm Toxicity Test) Guidelines for the Testing of Chemicals, No. 207.

Effects of the 1-alkyl-3-methylimidazolium bromide ionic liquids on the antioxidant defense system of Daphnia magna.

This study examined the antioxidant responses of Daphnia magna following exposure to different concentrations of the ionic liquid (IL) 1-octyl-3-methylimidazolium bromide and the 50% LC(50) concentrations of methylimidazolium bromide ILs with different alkyl-chain lengths. Activities of antioxidant defense enzymes (superoxide dismutase, catalase, glutathione peroxidase, and glutathione S-transferase) and levels of the antioxidant glutathione and the lipid peroxidation by-product malondialdehyde were measured using traditional methods or commercial kits. The concentration and the alkyl-chain length of ILs were found to strongly influence the antioxidant system of D.

The developmental toxicity of 1-methyl-3-octylimidazolium bromide on Daphnia magna.

The developmental toxicity of 1-methyl-3-octylimidazolium bromide ([C(8)mim]Br) on Daphnia magna was investigated. The 24 and 48 h LC(50) values for [C(8)mim]Br in D. magna were 1.

[The effect of swimming training on the expression of cardiovascular CGRPmRNA in rats].

Aim: Rats cardiovascular expression of CGRPmRNA surveyed after an eight-week swimming training, and molecular mechanism of exercise-induced adaptation were studied.

Methods: 24 purebred male SD rats were divided randomly into three groups (n = 8): control (CR), exhaust (ER), train (TR). After swimming training left ventricular muscle and main artery arch were extracted, we inspected the expression of CGRPmRNA by RT-PCR.