Recently, with the publication of the results of the college entrance examinations in various provinces, candidates from all over the country are also “a few happy families.†There are some candidates who are about to enter the top universities in China, such as Peking University. However, they are no matter what. They are not happy because their college entrance examination volunteers have been forcibly deprived by the school.
Candidates refused to report to Peking University’s vice president’s house arrest
According to the Global Times, this incident was a teacher responsible for enrollment work at a key university in Beijing last year. When interviewing students in the southern province of Y, I heard local students reflect.
According to Teacher W, at the time, a number of students from a local high school told him that the principals of their secondary schools required all of the school’s more than 20 students with a college entrance examination score of more than 660, regardless of which university they like. Peking University School of Medicine.
In this case, it is not uncommon for a number of secondary schools in Y Province, especially in remote areas. Teacher W also told another case: a candidate from another middle school in the locality refused to apply for the Peking University Medical Department in accordance with the requirements of the school. In the principal's office, he was “under house†by the vice president, the provost, the class teacher, and so on. I was "persuaded" for 6 hours, and then I was called to the principal's office again "doing work" the next day...
In the end, when the distance registration system was closed for only one hour, the student had no choice but to report the Peking University Medical Department under the “monitoring†of the school leadership.
Fortunately, the father of this candidate quickly rushed to the school. After a serious conflict with the school leader, he only asked the child to "apply for the freedom of his favorite university" five minutes before the closing of the application system.
So what is the situation this year?
According to the situation that the W teacher learned from the province of Y, because this incident has already attracted the attention of the Peking University Medical Department, the situation in the Y province has converged this year. However, a student in the middle school of Y province who originally intended to "persuade" the college entrance examination results "sufficiently" reported to Qinghua, but the students protested and the local media intervened.
Nucleic Acid (DNA/RNA) Extraction Kit
1. Introduction
The total viral nucleic acid extraction kit is suitable for extracting total viral nucleic acid from serum, plasma, tissue homogenate and other samples. The kit is based on silica column purification technology, which eliminates the need for toxic phenol-chloroform extraction and time-consuming alcohol precipitation. This product has successfully extracted nucleic acids from hepatitis B A/C, hepatitis C, and norovirus standard. The obtained DNA/RNA can be directly used in a series of downstream experiments such as PCR, RT-PCR, and LAMP.
Notice:
1. The carrier RNA solid must be dissolved in Nuclease Free Water to 1µg/µl before use, and vortex to dissolve. Store in aliquots at -70°C. If you need to store it at -20℃ for a long time, please repackage it according to the number of times of use.
2. Dissolve Proteinase K (20mg/ml): Add Proteinase Dissolve Buffer to dissolve Proteinase K to a final concentration of 20mg/ml. Proteinase K dry powder can be stored at 2-8°C for one year, but dissolved Proteinase K must be stored in aliquots at -20°C. Repeated freezing and thawing of Proteinase K can affect its activity.
3. Buffer VHB must be diluted with 14 ml absolute ethanol before use and stored at room temperature.
4. Buffer RW2 must be diluted with 80 ml of absolute ethanol before use and stored at room temperature.
3. Shelf life
Except for Proteinase K and Carrier RNA, other components of this product can be stored at room temperature (15-25°C) for 12 months, and should be stored at 2-8°C for long-term storage. Proteinase K and Carrier RNA dry powder are transported at room temperature. Please store at -20°C after receiving the test product, and store at -20°C after dissolving.
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