Don't mess with people who don't eat!They will really "turn hunger into anger" | One week of technology

Welcome to technology for a week. This week you will see: ① "Hungry Anger" really exists; ② The first new crown cat heir; ③ huge Wang Lian; ④ new technology; ⑤ Changxu whale returns.

The more hungry, the more angry

The more hungry, the easier it is to get angry -the new research published this week has further confirmed this phenomenon called "hungry" [1].

Cool Hyllo

Researchers found 64 adults and let them fill out the questionnaire through mobile phones at a frequency of 5 times a day to record the hunger and emotional state in daily life. The results show that hunger is always related to higher anger, anxiety, and less pleasure. After correcting factors such as gender, age, eating behavior, personality characteristics, this connection is still quite significant. The principle behind "hungry anger" is not very clear at present, it may be related to the reduced blood sugar level and the increased "pressure hormone".

Compared with the past psychological experiments, these data collected from the state of life should reflect the real situation more. However, the researchers also acknowledged that their research methods may still interfere with the results -for example, the subjects who were angry might be hungry and they would be urged to fill in the questionnaire.

New Guan Cat

Recently, the Thai research team published the first proven new crown cat heir case [2].

Although rare, the new crown cat is really likely | Alexas_Fotos/Pixabay

This infection occurred in August 2021, and the infected person was an veterinarian. She sampled a cat infected with a family cat infected with the SARS-COV-2 virus, and the cat sneezed on her face in the examination. The veterinarian wore gloves and N95 masks, but did not wear goggles, and she had symptoms infected three days later. The analysis of the virus genome further confirmed this way of communication.

Researchers pointed out that this new crown infection from home cats to people should be quite rare, and it does not play a significant role in the spread of epidemic. The author Sarunyou Chusri particularly emphasized that people should take care of cats more cautiously without abandoning pets.

Larger than

Recently, scientists have discovered the world's largest water lilies species, and the leaves can grow to more than 3 meters wide, and they can even carry the weight of an adult man [3].

Carlos Magoda (left) and plant artist and illustrator Lucy Smith (right) held the leaves of Bolivia Wanglian | RBG Kew

This new species is named "Victoria Boliviana" and is the third member of Wang Lian. The other two types of Wang Lian's leaves are also about two meters. In 2006, Carlos Magdalena, a water lily expert, saw a giant water lilies photo on the Internet, convinced that this was a new species and began to find this kind of water lilies. Finally, 10 years later, the Royal Botanical Garden received Wang Lian seeds from Bolivia. Carlos planted the seeds and two other known Wang Lian side by side -when they gradually developed a slightly different structure, he finally finally had a slightly different structure. Be sure that this seed is the new species he dreamed of.

Giant Water Lily in Bolivia | Carlos Magdalena

Interestingly, there is a flower in Qiu Garden that is very similar to the new species. It has been regarded as Amazon Wanglian before. Carlos did not expect that the new species he had explored before was approaching.

Frozen dried clone

Can the dead corpse of the cells be "resurrected" again? Japanese researchers use frozen and dry body cells to successfully cloned a healthy, breeding mouse. This technology is expected to be used to preserve genetic resources and save endangered species [4].

Mouse frozen dry cells preserved in the glass | Sayaka Wakayama et al.

The researchers first brought the mice cells that added frozen protective agents for freezing and drying. After frozen dryness, all these cells died, and DNA was also damaged, but their nucleus still retained "survival potential". Re -hydrophilized the frozen dryer nucleus and injected nuclear eggs, and the researchers successfully obtained embryonic stem cells. Using these embryonic stem cells for nuclear transplantation again, the mice with frozen dry cell genes were eventually cloned.

The success rate of this clone technology produces a healthy offspring is only 0.2-5.4%, but it does provide new possibilities. Researchers believe that low -cost and easy to preserve frozen dry cells are expected to replace liquid nitrogen frozen to preserve biological genetic resources and restore biological diversity.

Changxu whale returns

Good news: Balaenoptera Physalus Quoyi, which was killed by humans, is recovering, and they appear in the past in the past. [5]

The long beard whale near Elephant Island | Dan Beecham

Changxu whales are the second largest whale species on the planet. In the 20th century, people had killed these animals on a large scale in the Antarctic waters. Before the hunting was banned in 1976, more than 700,000 long beard whales were killed. For decades, they have completely disappeared from traditional foraging.

Through the helicopter, researchers conducted large -scale investigations on the long beard whale population over the Antarctic waters.During the 3251 kilometer flight, they recorded a total of 100 long beard whale groups, and observed the grand occasion of 150 long -term whales gathered together for food.According to research estimates, there are nearly 8,000 long beard whale individuals in this area.references

[1] https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0269629

[2] https://www.ncbi.nlm.nih.gov/pmc/articleS/pmc9239874/

[3] https://www.frontiersin.org/articles/10.3389/fpls.2022.883151/Full

[4] https://www.nature.com/articleS/S41467-022-31216-4

[5] https://www.nature.com/articleS/S41598-022-13798-7

Author: Cat swallow, the window knocks on the rain

Edit: Window knocking rain

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