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What Can Happen When Brain Cells Communicate Improperly? 当脑细胞沟通不当时会发生什么?
Pub Date : 2024-03-06 DOI: 10.3389/frym.2024.1274957
Margarita Maltseva, K. Klotz, Julia Jacobs
Nerve cells, also called neurons, behave like tiny messengers in our bodies that help us sense and move. When brain cells chat with each other, it results in electrical brain waves. Sometimes brain cells chat with each other in a calm and slow way, while other times they are excited and brain activity is faster. This fast electrical activity is called oscillations. Equipment can be used to measure the electrical activity in the brain. The fastest activity that can be measured is called high frequency oscillations (HFOs). Fast brain activity can be super helpful in daily life, helping us to do things like memorize locations and activities, for example. However, if neurons start firing too fast, people can experience a sudden loss of control of certain body parts or even the whole body, which is called epilepsy. In this article, you will learn about brain function and epilepsy and how scientists count the speed of brain waves. So, let us have a look at how HFOs help our brains to function.
神经细胞,也称为神经元,就像我们体内的微小信使,帮助我们感知和移动。当脑细胞相互交谈时,就会产生脑电波。有时,脑细胞会以一种平静而缓慢的方式相互交谈;而有时,脑细胞会处于兴奋状态,大脑活动也会加快。这种快速的电活动被称为振荡。可以使用仪器来测量大脑中的电活动。可以测量到的最快活动称为高频振荡(HFO)。快速的大脑活动在日常生活中非常有用,可以帮助我们记忆地点和活动等。但是,如果神经元开始过快放电,人们就会突然失去对身体某些部位甚至整个身体的控制,这就是所谓的癫痫。在本文中,您将了解大脑功能和癫痫,以及科学家如何计算脑电波的速度。那么,让我们来看看 HFO 如何帮助我们的大脑发挥功能。
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引用次数: 0
What’s Mine? What’s Ours? How the Brain Thinks About Shared Resources 我的是什么?我们的是什么?大脑如何思考共享资源
Pub Date : 2024-03-05 DOI: 10.3389/frym.2024.1151409
Ashley Zappe, Mario Martinez-Saito, Sandra Andraszewicz
Why do people not always choose to take care of the Earth? This study looked at how people’s brains decide to take care of nature, like fish in the ocean. The scientists made a game that was like going fishing, and they used brain-scanning technology to see what was happening in people’s brains while they played. The scientists discovered that when people thought they were fishing with other people, they took more fish than when they were alone. The brain scan showed that a part of the brain was working differently, too. This study helps us understand how people’s brains work when they make decisions about nature. If we know more about how our brains think about nature, we can find better ways to protect our planet. This study also shows how different types of science, like Earth science and brain science, can work together to help solve important problems for the world.
为什么人们并不总是选择爱护地球?这项研究考察了人们的大脑是如何决定像海洋中的鱼儿一样爱护大自然的。科学家们制作了一个类似于钓鱼的游戏,并使用大脑扫描技术来观察人们在玩游戏时大脑中发生了什么。科学家们发现,当人们认为自己是在和其他人一起钓鱼时,他们钓到的鱼要比独自一人时多。大脑扫描显示,大脑的一部分也在以不同的方式工作。这项研究有助于我们了解人们在对大自然做出决定时大脑是如何工作的。如果我们能更多地了解我们的大脑是如何思考自然的,我们就能找到更好的方法来保护我们的地球。这项研究还显示了不同类型的科学,如地球科学和脑科学,如何能够共同帮助解决世界上的重要问题。
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引用次数: 0
Drilling Into Ancient Rock to Learn About Earth’s Past 钻进古老岩石了解地球的过去
Pub Date : 2024-03-04 DOI: 10.3389/frym.2024.1252881
Phumelele Mashele, Christoph Heubeck
Geologists are curious to learn what the Earth was like when the planet was young. We want to know about temperature, beaches, soils, climate, rivers, meteorite impacts, and volcanic activity because these factors determined how and where early life could exist. Only the oldest sedimentary rocks have this information, but these are usually covered by younger rocks. Old sedimentary rocks that still “tell a good story” about the history of the Earth are rare. We studied some of these. They are an unimaginable 3.2 billion years old and are found in the Makhonjwa Mountains near South Africa’s border with Eswatini. We had to drill into the Earth to get to them because the surface is covered by forest and grassland. Sedimentary rock layers in these mountains do not lie flat anymore but are vertical, and sometimes even flipped over. To drill through as many layers as possible, we had to drill sideways!
地质学家对地球年轻时的样子充满好奇。我们想了解温度、海滩、土壤、气候、河流、陨石撞击和火山活动,因为这些因素决定了早期生命的存在方式和地点。只有最古老的沉积岩才有这些信息,但这些沉积岩通常被较年轻的岩石所覆盖。仍在 "讲述 "地球历史的古老沉积岩非常罕见。我们研究了其中一些。它们的年龄达到了令人难以想象的 32 亿年,发现于南非与埃斯瓦提尼交界处附近的马孔吉瓦山脉。由于地表被森林和草原覆盖,我们不得不钻入地下才能找到它们。这些山区的沉积岩层不再是平的,而是垂直的,有时甚至是翻转的。为了钻透尽可能多的岩层,我们必须侧着钻!
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引用次数: 0
Does the Heart Age Faster in Space? 心脏在太空中衰老得更快吗?
Pub Date : 2024-02-29 DOI: 10.3389/frym.2024.1232530
Emil Rehnberg, Bjorn Baselet, Lorenzo Moroni, Sarah Baatout, Kevin Tabury
Living in space is not as simple as living on Earth. The environment in space is harmful for humans. Astronauts experience weightlessness and are exposed to dangerous radiation. On top of that, astronauts live in a tiny area, far from their loved ones. All our organs are harmed by these factors. The heart, for example, starts to age much quicker in space than on Earth. This means that astronauts have a higher risk of heart disease after going to space. It is therefore important that we investigate why this happens so that we can prevent it. In the past, these studies were based on experiments using animals or humans. Today, we can create mini-hearts in the lab for our experiments instead. In this article, we will explain how we make mini-hearts and how they help us understand and prevent the heart’s aging in space.
太空生活不像地球生活那么简单。太空环境对人类有害。宇航员会经历失重状态,暴露在危险的辐射中。此外,宇航员生活在一个狭小的区域,远离他们的亲人。我们的所有器官都会受到这些因素的伤害。例如,心脏在太空中比在地球上衰老得更快。这意味着宇航员进入太空后患心脏病的风险更高。因此,我们必须研究这种情况发生的原因,以便能够预防。过去,这些研究都是基于使用动物或人类进行的实验。如今,我们可以在实验室中制造微型心脏,用于实验。在本文中,我们将介绍如何制作迷你心脏,以及迷你心脏如何帮助我们了解和预防太空中的心脏衰老。
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引用次数: 0
Missing Puzzle Pieces: Cleft Lip and Palate 缺失的拼图唇腭裂
Pub Date : 2024-02-29 DOI: 10.3389/frym.2024.1297294
Hannah Polley, Brynn Rickard, Danica Jekic, Damir B. Matic
Facial differences can arise while a baby is still growing inside the mother. Two common examples include cleft lip and cleft palate. Most of the body’s cells contain DNA, which serves as the instructions for creating all the features of the body, such as the parts of the face. Cells use DNA’s instructions to form the face from five big “puzzle pieces” called prominences. Sometimes the DNA instructions get changed or steps are skipped, which can change how the puzzle pieces, or prominences, connect. This results in facial differences like cleft lip, in which there is a gap in the lip and cleft palate, in which there is a gap in the roof of the mouth. Most cases of cleft lip and cleft palate can be fixed with surgery, and children go on to live long, healthy lives.
婴儿还在母体内成长时就可能出现面部差异。唇裂和腭裂就是两个常见的例子。人体的大多数细胞都含有 DNA,它是创造人体所有特征(如脸部的各个部分)的指令。细胞利用 DNA 的指令,由五块大的 "拼图 "组成脸部,这五块 "拼图 "被称为 "突起"。有时,DNA 指令被更改或跳过步骤,会改变拼图或突起的连接方式。这就导致了面部差异,如唇裂,即嘴唇上有一个缺口;腭裂,即口腔顶部有一个缺口。大多数唇裂和腭裂病例都可以通过手术修复,患儿也能健康长寿。
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引用次数: 0
How the Spread of Young Coral Can Help Save Coral Reefs 幼珊瑚的传播如何帮助拯救珊瑚礁
Pub Date : 2024-02-28 DOI: 10.3389/frym.2024.1308034
Ariel Greiner, Marco Andrello, Martin Krkošek, Marie-Josée Fortin
Coral reefs around the world are getting sick (and sometimes dying) at alarming rates due to climate change. Certain coral reefs (low-risk reefs) are predicted to be less at risk of getting sick than others. We wondered whether low-risk reefs can help save other reefs. We found that this is possible—through the movement of young coral from healthy reefs to damaged or dying reefs. We found that coral reefs worldwide are connected through the spread of young coral, forming 604 reef networks. Some networks are very large, but most are very small. If only the low-risk coral reefs survive, many of these networks will be preserved, which will help the overall survival of coral reefs into the future. However, young coral from these low-risk reefs do not reach all reefs worldwide, so it is important to find and protect reefs that are good at sending young coral to rescue the rest of the world’s reefs.
由于气候变化,世界各地的珊瑚礁正以惊人的速度生病(有时甚至死亡)。据预测,某些珊瑚礁(低风险珊瑚礁)比其他珊瑚礁患病的风险要小。我们想知道低风险珊瑚礁能否帮助拯救其他珊瑚礁。我们发现这是可能的--通过幼珊瑚从健康的珊瑚礁转移到受损或濒临死亡的珊瑚礁。我们发现,世界各地的珊瑚礁通过幼珊瑚的传播连接在一起,形成了 604 个珊瑚礁网络。有些网络非常大,但大多数都很小。如果只有低风险的珊瑚礁存活下来,这些珊瑚礁网络中的许多都将得到保护,这将有助于未来珊瑚礁的整体存活。然而,来自这些低风险珊瑚礁的幼珊瑚并不会到达世界上所有的珊瑚礁,因此,找到并保护那些善于输送幼珊瑚以拯救世界上其他珊瑚礁的珊瑚礁非常重要。
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引用次数: 0
Hitting Moving Targets in Cancer Treatment 癌症治疗中的移动目标
Pub Date : 2024-02-23 DOI: 10.3389/frym.2024.1349460
Jessica M. Fagerstrom, Victoria N. Bry, Caroline M. Colbert, Cheyann Windsor
In this article, we will explore the way radiation can be used to treat cancer. Radiation for cancer therapy consists of high-energy particles or light that can damage living cells, including cancer cells. Radiation beams can be generated using a special machine, called a linear accelerator, and they are precisely aimed at a patient’s cancer. When cancer is located near the patient’s lungs, the cancer moves around as the patient breathes in and out. Hitting the cancer with the radiation beam can be hard when the cancer does not stay still. It is a little like trying to hit a moving target in a video game. In that case, there are some tricks that patients and radiation therapy workers can use to make sure that the radiation beam hits the cancer and misses healthy organs.
本文将探讨辐射治疗癌症的方法。用于治疗癌症的辐射由高能粒子或光组成,它们可以破坏活细胞,包括癌细胞。辐射束可以通过一种叫做线性加速器的特殊机器产生,并精确瞄准患者的癌症。当癌症位于患者肺部附近时,癌症会随着患者的呼吸而移动。当癌症无法保持静止不动时,用放射光束照射癌症就会很困难。这有点像在电子游戏中试图击中移动的目标。在这种情况下,患者和放射治疗工作人员可以使用一些技巧,确保放射光束击中癌症,而不击中健康器官。
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引用次数: 0
Are You Curious About Curiosity? 您对好奇心感到好奇吗?
Pub Date : 2024-02-22 DOI: 10.3389/frym.2024.1182072
Suzanne Oosterwijk, M. Noordewier, Matthias J. Gruber
Kids (and adults) are often curious. Maybe you are curious about dinosaurs, giant squids, or rollercoaster rides. But have you ever been curious about why you are curious about some things but not about other things? In the last 10 years, scientists have asked similar questions about curiosity. In this article, we will share some of the answers. We explain how scientists across the world study curiosity. We also explain that people become curious to seek out specific information or to explore new things. Based on research on curiosity and the brain, scientists think that curiosity is a signal that it is valuable (or rewarding) to learn something or figure something out. Curiosity can even make you remember information better. After reading this article, we hope that your curiosity is satisfied!
孩子(和成年人)通常都很好奇。也许你会对恐龙、大鱿鱼或过山车感到好奇。但是,你有没有好奇过,为什么你对某些事物好奇,而对其他事物却不好奇呢?在过去 10 年中,科学家们提出了类似的好奇心问题。在本文中,我们将与大家分享一些答案。我们将解释全球科学家是如何研究好奇心的。我们还将解释,人们会因为寻找特定信息或探索新事物而产生好奇心。根据对好奇心和大脑的研究,科学家们认为好奇心是一种信号,表明学习某些知识或弄明白某些事情是有价值的(或有回报的)。好奇心甚至能让你更好地记住信息。读完这篇文章,我们希望你的好奇心能得到满足!
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引用次数: 0
Teeth can Tell a Story About Childhood! 牙齿可以讲述童年的故事!
Pub Date : 2024-02-21 DOI: 10.3389/frym.2024.1258822
Júlia Biliato Javaroni, Larissa Sthefani Sales dos Santos, Juliana de Lima Gonçalves, Fabrício Kitazono de Carvalho, F. Paula-Silva
Tooth enamel is the hardest substance in the human body. It begins forming during pregnancy and the way it forms can provide valuable information about early life. The cells that produce enamel are extremely sensitive to disturbances, so when a child experiences some kinds of stress during enamel development (childhood diseases, fever, or low concentration of oxygen in the blood for example), layers of enamel may contain “scars” reflecting the stressful experience. The type of enamel scars can tell dentists a story about what may have happened before the person was born or shortly after birth. Understanding enamel development is important for knowing the difference between normal enamel and abnormal changes, and such knowledge can help dentists to diagnose and treat enamel issues, to keep the teeth healthy.
牙釉质是人体中最坚硬的物质。它在怀孕期间就开始形成,其形成方式可以为早期生活提供宝贵的信息。生成珐琅质的细胞对干扰极为敏感,因此,当孩子在珐琅质发育过程中经历某种压力(例如儿童疾病、发烧或血液中氧气浓度过低)时,珐琅质层可能会留下反映压力经历的 "伤疤"。珐琅质疤痕的类型可以告诉牙医在患者出生前或出生后不久发生了什么。了解珐琅质的发育情况对于区分正常珐琅质和异常变化非常重要,这些知识可以帮助牙医诊断和治疗珐琅质问题,保持牙齿健康。
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引用次数: 0
Malaria—Why Do Mostly Children Get Sick? 疟疾--为什么大多数儿童都会生病?
Pub Date : 2024-02-01 DOI: 10.3389/frym.2024.1305938
Rolando Garza, Mischa Huson, Anakaren Garcia, Bella Gonzalez, Kenneth Musinguzi, Avani Nagaragere, Evelyn Nansubuga, M. Zedi, E. Bunnik, Sebastiaan Bol
Did you know that micro-organisms can live in blood? Plasmodium parasites can infect red blood cells and cause a serious disease called malaria. This disease is mostly seen in young children living in Africa. Sick children have a fever, aches, can feel very tired, and in bad cases, they can even die from malaria. There are medicines that cure malaria, but it is hard to get these to everyone who needs them. Fortunately, as children grow older, they do not feel as sick when they are infected by the malaria-causing parasite. Better yet, adults hardly ever get malaria. The reason for this difference between children and adults has to do with how well the body’s defense system can fight off the parasite. Keep reading if you want to learn more about malaria, the Plasmodium parasite and how the immune system fights against it.
您知道微生物可以在血液中生存吗?疟原虫可以感染红血球,引发一种叫做疟疾的严重疾病。这种疾病主要发生在非洲的幼儿身上。患病儿童会发烧、疼痛、疲倦,严重时甚至会死于疟疾。有一些药物可以治疗疟疾,但很难将这些药物送到每个需要的人手中。幸运的是,随着年龄的增长,儿童在感染疟疾寄生虫后不会感到那么难受。更好的是,成年人几乎不会感染疟疾。儿童和成人之间之所以存在这种差异,与人体防御系统抵御寄生虫的能力有关。如果您想进一步了解疟疾、疟原虫以及免疫系统如何对抗疟原虫,请继续阅读。
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引用次数: 0
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Frontiers for young minds
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