Subculture of a Cell Line

2024/05/0305:17:05 science 82440

Subculture of a Cell Line - DayDayNews

Subculture of a Cell Line - DayDayNews

6:29

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On October 25, the reporter learned from the Changchun Forestry and Gardening Bureau that as the weather turns colder, Changchun Friendship Park strengthens, adjusts, fills straw and other maintenance work on artificial straw-woven bird nests hanging on trees in the park, prepari - DayDayNews

On October 25, the reporter learned from the Changchun Forestry and Gardening Bureau that as the weather turns colder, Changchun Friendship Park strengthens, adjusts, fills straw and other maintenance work on artificial straw-woven bird nests hanging on trees in the park, prepari

Changchun Friendship Park maintains artificial bird nests to prepare for wild birds to return to their nests for wintering

06/29 1279

An international astrophysics team discovered a puzzling phenomenon when analyzing certain star clusters. The team mainly studied open clusters, which are loose combinations of dozens to hundreds of stars that exist in spiral and irregular galaxies. - DayDayNews

An international astrophysics team discovered a puzzling phenomenon when analyzing certain star clusters. The team mainly studied open clusters, which are loose combinations of dozens to hundreds of stars that exist in spiral and irregular galaxies.

Is Newton's law of universal gravitation wrong? Scientists' new discoveries are challenging this law

06/29 1113

As we all know, the direct factor that triggers global warming is that the concentration of greenhouse gases contained in the earth's atmosphere is getting higher and higher. The reasons for this phenomenon are both natural and human factors. After the industrial revolution of hu - DayDayNews

As we all know, the direct factor that triggers global warming is that the concentration of greenhouse gases contained in the earth's atmosphere is getting higher and higher. The reasons for this phenomenon are both natural and human factors. After the industrial revolution of hu

The largest methane cloud ever appeared over the United States, scientists: There is an ulterior motive behind it

06/28 1830

#Toutiao Creation Challenge# NASA astronomers captured an extremely unusual photo of the sun, our sun looked like a cartoon-like smile, a photo of the sun that had never been seen before. NASA shared this unusual photo on its social media, a photo of the sun taken in UV mode wher - DayDayNews

#Toutiao Creation Challenge# NASA astronomers captured an extremely unusual photo of the sun, our sun looked like a cartoon-like smile, a photo of the sun that had never been seen before. NASA shared this unusual photo on its social media, a photo of the sun taken in UV mode wher

Astronomy enthusiasts, watch it! A photo of the sun with a "smiling" was revealed, both cute and weird

06/28 1406

A report a few years ago showed that there are about 3 trillion big trees on the earth, and this number seems to be quite large. However, compared with 10,000 years ago, human activities have reduced the number of trees by half. At present, humans have cut down and damaged about - DayDayNews

A report a few years ago showed that there are about 3 trillion big trees on the earth, and this number seems to be quite large. However, compared with 10,000 years ago, human activities have reduced the number of trees by half. At present, humans have cut down and damaged about

It's a big score! The truth is actually very simple

06/28 1082

Although scientists have been using topological insulators to demonstrate quantum effects for the past decade, this experiment is the first time these effects have been observed at room temperature. - DayDayNews

Although scientists have been using topological insulators to demonstrate quantum effects for the past decade, this experiment is the first time these effects have been observed at room temperature.

Scientists observe new quantum effects in topological insulators for the first time in room temperature

06/29 1564

In August 2012, the British Daily Mail published a report that made many people envious and jealous. Later, after identification, the stone of about 600 grams turned out to be a rare ambergris, with a total value of up to 400,000 yuan. - DayDayNews

In August 2012, the British Daily Mail published a report that made many people envious and jealous. Later, after identification, the stone of about 600 grams turned out to be a rare ambergris, with a total value of up to 400,000 yuan.

Why does the sperm whale excrement smell like ambergris? Why does the fragrance that is pulled out is smelly when taken out manually?

06/30 1798

Nelson, who works at the National Center for Biotechnology Information at the National Institutes of Health and also studies highly deadly avian flu, found persuasive evidence that the 2009 flu pandemic infected hundreds of millions of people around the world, began with a new fl - DayDayNews

Nelson, who works at the National Center for Biotechnology Information at the National Institutes of Health and also studies highly deadly avian flu, found persuasive evidence that the 2009 flu pandemic infected hundreds of millions of people around the world, began with a new fl

To stop the human virus epidemic, researchers look for flu viruses at the American pig show

06/28 1936

It has been many years since the development of human civilization. In this overall development process, in fact, there have been different progress in both the overall appearance of a person, in terms of living habits and thoughts. - DayDayNews

It has been many years since the development of human civilization. In this overall development process, in fact, there have been different progress in both the overall appearance of a person, in terms of living habits and thoughts.

Animals have fixed estrus periods, but why don’t humans do? How do humans control desires

06/29 1911

Ant Manor: Bees fly around and buzz, but butterflies always silently. Is this because? Is it different vocal organs or vibration frequency? This is the title of Ant Manor, about bees flying around and buzzing, but butterflies always silently. Is this because? - DayDayNews

Ant Manor: Bees fly around and buzz, but butterflies always silently. Is this because? Is it different vocal organs or vibration frequency? This is the title of Ant Manor, about bees flying around and buzzing, but butterflies always silently. Is this because?

Why are bees flying around and buzzing butterflies always silent? Ant Manor Answer

06/28 1420

To form a scientific theoretical system, there must be three prerequisites: First, what is the object of this science? The object determines the content, and the principle determines how to arrange the content and make it a system. - DayDayNews

To form a scientific theoretical system, there must be three prerequisites: First, what is the object of this science? The object determines the content, and the principle determines how to arrange the content and make it a system.

What is the content of dialectics

07/01 1742

That's right, among all the creatures on Earth, human butts are unique, and even human close relatives, such as chimpanzees, bonobos and gorillas, do not have human butts. - DayDayNews

That's right, among all the creatures on Earth, human butts are unique, and even human close relatives, such as chimpanzees, bonobos and gorillas, do not have human butts.

Among the creatures on earth, why did humans evolve into a unique butt? By-product of upright walking

07/01 1559

At present, the blood color of most known organisms in the world is basically red or dark red, just like our human blood is red. This is because our blood is rich in hemoglobin, and their biggest function is to transport oxygen, so they are very important to each of us. Because t - DayDayNews

At present, the blood color of most known organisms in the world is basically red or dark red, just like our human blood is red. This is because our blood is rich in hemoglobin, and their biggest function is to transport oxygen, so they are very important to each of us. Because t

1 liter of blue blood 100,000! The horseshoe crab that has reproduced for 400 million years has been "crazy blood drawn". What is the purpose of blue blood?

07/01 1565

I think you shouldn't know you. The 60-year-old man in our village told me that magpies are "naughty eggs" among birds. Why do you say that? But, such a good bird, why do you say that? - DayDayNews

I think you shouldn't know you. The 60-year-old man in our village told me that magpies are "naughty eggs" among birds. Why do you say that? But, such a good bird, why do you say that?

Why do eagles and other beasts do not eat magpies? Isn't it delicious?

07/01 1674

There are countless universes, each slightly different from the previous one. In other cases, the sun is a different color. But in all these universes, there is a constant: you. - DayDayNews

There are countless universes, each slightly different from the previous one. In other cases, the sun is a different color. But in all these universes, there is a constant: you.

You in the multiverse

07/01 1503

Scientists say the collision between the Milky Way and Andromeda has begun, why don’t we feel it? For the past century, astronomers have been plagued by the contradictions of the universe, which, even at the most basic level, are in conflict with the contradiction between general - DayDayNews

Scientists say the collision between the Milky Way and Andromeda has begun, why don’t we feel it? For the past century, astronomers have been plagued by the contradictions of the universe, which, even at the most basic level, are in conflict with the contradiction between general

Scientists say the collision between the Milky Way and Andromeda has begun, why don’t we feel it?

07/01 1200

First solve the obstacles, 1) This is a connotation of the step, which is easy to be ignored, especially those who are impatient and those who ignore investigation work. Common obstacles, such as 1. Trust is a common obstacle. For example, Shang Yang's reforms started with Tu Mu - DayDayNews

First solve the obstacles, 1) This is a connotation of the step, which is easy to be ignored, especially those who are impatient and those who ignore investigation work. Common obstacles, such as 1. Trust is a common obstacle. For example, Shang Yang's reforms started with Tu Mu

Teacher: first solve obstacles

07/01 1098

According to Taiwanese media reports, the epidemic in Taiwan has left the plateau period, with new cases less than 40,000 for five consecutive days, and dropped to less than 30,000 on the 24th. Wang Bisheng, commander of the "Command Center" of the Taiwan authorities' "Command Ce - DayDayNews

According to Taiwanese media reports, the epidemic in Taiwan has left the plateau period, with new cases less than 40,000 for five consecutive days, and dropped to less than 30,000 on the 24th. Wang Bisheng, commander of the "Command Center" of the Taiwan authorities' "Command Ce

Taiwan’s total lockdown was lifted on November 7, and public places were cancelled to take their temperatures, leaving only one type of person to be quarantined

07/01 1301

On the morning of July 30, Lanzhou City held a press conference on epidemic prevention and control work. The reporter learned from the meeting that from 0:00 to 24:00 on July 29, Lanzhou City added 16 new local confirmed cases, including 15 in Chengguan District and 1 in Qilihe D - DayDayNews

On the morning of July 30, Lanzhou City held a press conference on epidemic prevention and control work. The reporter learned from the meeting that from 0:00 to 24:00 on July 29, Lanzhou City added 16 new local confirmed cases, including 15 in Chengguan District and 1 in Qilihe D

On July 29, 69 risk areas in Lanzhou were "downgraded" and 2,079 people were released from quarantine.

07/01 1589

According to the latest news from the South Korean fire department on the 30th, the stampede has killed 151 people and injured 82 people, most of whom are teenagers and young people in their 20s. - DayDayNews

According to the latest news from the South Korean fire department on the 30th, the stampede has killed 151 people and injured 82 people, most of whom are teenagers and young people in their 20s.

151 deaths in Seoul stampede accident: It is suspected that ten times the flow of people in the past encountered a fatal slope

07/01 1366

The streets of Itaewon, Seoul, South Korea are narrow and steep. They were once a famous red light district in Seoul. In addition, in order to cater to the nearby Yongsan base of the US military stationed in South Korea, the blocks were filled with cheap beer and counterfeit good - DayDayNews

The streets of Itaewon, Seoul, South Korea are narrow and steep. They were once a famous red light district in Seoul. In addition, in order to cater to the nearby Yongsan base of the US military stationed in South Korea, the blocks were filled with cheap beer and counterfeit good

Narrow streets, crowded people: How did the stampede accident in Itaewon, South Korea happen?

07/01 1659

According to CCTV News, a large-scale stampede occurred in Itaewon, Yongsan District, Seoul, South Korea on the evening of October 29th local time. According to the latest news from the South Korean fire department on the 30th, the stampede has killed 151 people and injured 82 pe - DayDayNews

According to CCTV News, a large-scale stampede occurred in Itaewon, Yongsan District, Seoul, South Korea on the evening of October 29th local time. According to the latest news from the South Korean fire department on the 30th, the stampede has killed 151 people and injured 82 pe

151 people have been killed in the stampede accident in Itaewon, Seoul, South Korea. Experts analyze how to survive the accident

07/01 1258