Current Event Summaries by Thomas P.

6 Responses to Current Event Summaries by Thomas P.

  1. Thomas Peterson says:

    Title: Fruit flies live longer with combination drug treatment
    URL: https://www.sciencedaily.com/releases/2019/09/190930161857.htm
    Author(s): Science Daily
    Published by: Science Daily
    Date: September 30, 2019
    Article Summary: Scientists have discovered a combination of drugs that makes fruit flies live longer. They live for 48% longer than without the three drugs. The three drugs are lithium, trametinib, and rapamycin. Lithium is normally used as a mood stabilizer. Trametinib is currently used as a cancer treatment. Rapamycin is normally used has an immune system regulator. It makes them live longer because the drugs target different cellular processes than other drugs that try to do the same. These different cellular processes slow down aging processes. The three drugs also all act on different cellular signaling pathways that help together to form the nutrient-sensing network. They hope that in the near future they could start testing on mice and then advance to humans.

    Personal Reaction: I think that this is really cool because their intentions are not for immorality, but for healthy and disease-free living in their final days. It’s also cool to live longer. The average life expectancy in the U.S. is currently in 78 and with a 48% boost, that’s 113 years. They also said that the side effects are minimal because two of the drugs cancel out their effects. It will be a long while before humans use this trio of drugs, but when and if it does it will be a very big medical advance.

  2. Thomas Peterson says:

    This relates to what we have been learning in class because in class we are talking about cells and cell processes. In class one of the videos, we watched showed cellular signaling. We also briefly talked about it class.

  3. Thomas Peterson says:

    Title: Otherworldly worms with three sexes discovered in Mono Lake
    URL: https://www.sciencedaily.com/releases/2019/10/191002102755.htm
    Author(s): Science Daily
    Published by: Science Daily
    Date: September 26, 2019
    Article Summary: Scientists have discovered a worm with three sexes. The worm is in Mono Lake in California. The lake is three times as salty as the ocean and has a pH of 10. It can also survive 500 times the amount of lethal arsenic compared to humans, but they do not live in an arsenic environment. These worms are called nematodes they only use 300 neurons to do their daily tasks like eating, sleeping, smelling, moving, and learning. They can also be tested in room temperatures which is rare. They only have 1,000 cells and adapt quickly to harsh environments. They are one of the most abundant animals on earth. These worms also teach us a lot about how animals deal with stress. It does not explain why they have three sexes or what that means.

    Personal Reaction: I think this is really cool it teaches us a lot about how to deal with harsh environments. This helps us figure out how things react to arsenic levels and even when their environment is not arsenic. It helps us take the next step in innovation for biotechnology. This article relates to what we have learned in class because it talks about the number of cells and neurons. It also talks about how they are eukaryotic cells which is what we have been learning about in class.

  4. Thomas Peterson says:

    Title: Why are there no animal species with three legs?
    URL: https://www.sciencedaily.com/releases/2019/10/191002102755.htm
    Author(s): Science Daily
    Published by: Science Daily
    Date: October 2, 2019
    Article Summary: Scientist Tracy Thomson wondered why animals don’t exist naturally three-footed. Some animals like meerkats use tail and rear feet for stability and also the woodpecker uses its tail feather to brace against a tree. He also noted that a tripod stance doesn’t need to use energy from the animal to be stable when two feet or four feet do. Many animals use the tripod stance. So why do not have any natural three-legged animals? It’s pretty simple bilateral evolution it’s impeded in us to have two because of our evolution out of the water and once it got comment it was hard to change because two are better than one. Scientists are looking into three-legged animals from over planets that are if life does exist on other planets besides Earth.

    Personal Reaction: I think this is really interesting because no one ever thinks about three-legged creatures. I never thought about it. It’s also cool to see what other animals use three body parts to balance. Another thing I found interesting was that a tripod stance doesn’t use any energy to balance which is really neat. The last thing I found interesting was that nothing on land has decided to evolve into a three-legged creature once on land. This relates to what we have learned in class because the article is all about evolution and it also talks about bilateral evolution which we have covered in class.

  5. Thomas Peterson says:

    Title: Tiny, biocompatible nanolaser could function inside living tissues
    URL: https://www.sciencedaily.com/releases/2019/09/190923140807.htm
    Author(s): Science Daily
    Published by: Science Daily
    Date: September 23, 2019
    Article Summary: Researchers have made a laser that is 50 to 150 nanometers thick. It is 1/1,000 the width of a human hair. At this size, the laser can fit inside of living tissue. It was made to find potential disease biomarkers and treat brain neurological disorders like epilepsy. It is showing that it may work for imaging inside of living tissue. It is also made of glass and is biocompatible the laser can be used with longer wavelengths of light which helps penetrate deeper into tissues. This laser or (nanolaser) also works in extremely confined spaces, like quantum circuits. This laser, on the other hand, has some downsides like it is very fragile and they are less efficient than macroscopic lasers. They were later able to fix this problem by using photon upconversion. In photon upconversion, low-energy photons are taken in and are made into one photon with higher energy. This makes them able to function in low power so they don’t break.

    Personal Reaction: I think is is a very big advancement in biotechnology. This advancement with help thousands of people worldwide and the fact that it can help detect brain disease is very helpful for doctors. It is also very cool that researchers can make something so small yet have it useable. It is also interesting that they were able to work on, fix, and improve something so small. This topic relates to what we have learned in class because we learned how small things like tissue and cells are. I looked back at the cell size thing we did a few weeks ago and this nanolaser is just a little bigger than a ribosome which is crazy that humans can make something like this.

  6. Thomas Peterson says:

    Title: Implanted memories teach birds a song
    URL: https://www.sciencedaily.com/releases/2019/10/191003141557.htm
    Author(s): Science Daily
    Published by: Science Daily
    Date: October 3, 2019
    Article Summary: Learning sounds as infants in very crucial to development as humans it helps develop talking and listening. We don’t know exactly how these things develop, but a new discovery in songbirds will help us figure this mystery out. The studies show that memories have to be implanted in the brain in order to teach vocalization. So without a parent saying and teaching the child words from the age of an infant. The child can develop autism and other speech problems. Our brains encode behavioral-goal memories from anything from speech to learn the piano. These recent finds help researchers try this on songbirds. Researchers are now trying to find the neurological pathways we use to learn speech to remove speaking disorders. The memories we learn from sound are encoded into our brains, but we do still not know where. They tried some tests and did even more research, but still did not find the answer.

    Personal Reaction: This is really cool that we have found that speaking to infants as they learn to speak is crucial towards development in speech and listening. It is also cool that this is a way that we can get rid of autism and speech disorders. It is also really neat that they are using birds to test on because they learn their bird songs like people learn to talk. I hope in the future they can find where the memories are encoded so we can learn more about this topic. This topic relates to what we have learned in class because the brain is made of cells and the cells are made of protein and fats. Without these things, the brain wouldn’t be able to function. This topic is also related to what we have learned in class to develop speech humans had to evolve and change over time and we have talked about evolution in class.

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