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	<title>University of Illinois &#8211; Spress</title>
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		<title>Can an ant survive if it falls from the roof of a building?</title>
		<link>https://en.spress.net/can-an-ant-survive-if-it-falls-from-the-roof-of-a-building/</link>
		
		<dc:creator><![CDATA[Theo Đỗ Hợp/Tiền phong]]></dc:creator>
		<pubDate>Fri, 11 Jun 2021 02:15:15 +0000</pubDate>
				<category><![CDATA[Science]]></category>
		<category><![CDATA[Air resistance]]></category>
		<category><![CDATA[ant]]></category>
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		<category><![CDATA[Corrie Moreau]]></category>
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		<category><![CDATA[LITTLE]]></category>
		<category><![CDATA[Roof]]></category>
		<category><![CDATA[Set of Membrane Wings]]></category>
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		<guid isPermaLink="false">https://en.spress.net/can-an-ant-survive-if-it-falls-from-the-roof-of-a-building/</guid>

					<description><![CDATA[Normally, if you accidentally fall from the roof of a high-rise building with a height of hundreds of meters, you will have broken bones and flesh. What about the little ants? Illustration. For ants and small animals, the resistance of the air helps them a lot and makes their falling velocity very slow, sometimes their [&#8230;]]]></description>
										<content:encoded><![CDATA[<p><strong>Normally, if you accidentally fall from the roof of a high-rise building with a height of hundreds of meters, you will have broken bones and flesh. What about the little ants?</strong><br />
<span id="more-22574"></span> <img fifu-featured="1" decoding="async" loading="lazy" src="https://photo-baomoi.zadn.vn/w700_r1/2021_06_11_304_39143988/17a78fc082826bdc3293.jpg" width="625" height="416"> </p>
<p> <em> Illustration.</em> For ants and small animals, the resistance of the air helps them a lot and makes their falling velocity very slow, sometimes their acceleration is negative (due to the wind blowing up). Thus, ants are almost unharmed when falling from the roofs of high-rise buildings. All objects falling through the air have terminal velocities that depend on their size, shape, and mass. The terminal velocity of an ant (6.4 km/h, according to the physics department of the University of Illinois) would be vastly different from the terminal velocity of a human (about 200 km/h). &#8220;For rats and any small animal, there&#8217;s really no danger. You can drop a rat into a minehole nearly 1,000 meters deep and when it hits the bottom, it&#8217;ll be slightly stunned and run away. , provided that the ground is fairly soft.The air resistance acting on a moving object is proportional to its surface.If the length, width and height of an animal are divided by 10, respectively, the mass is its mass is reduced by 1000 times while the surface area is reduced by only 100. Therefore, the air resistance for small animals is usually 10 times higher than the driving force. Force isn&#8217;t usually a problem for an insect, it can be free-falling without danger, with the ability to grip.&#8221; Michael Kaspari is an ecologist at the University of Oklahoma (USA) who has studied the aerial activities of wingless ants. Research shows that when ants are facing a predator, they will jump right into the air from tall tree branches and use their legs to control the direction of flight to reach the tree trunk. The longer hind legs will help the ants glide through the air, helping them avoid falling into places they consider dangerous. With this ability, it is possible that the ant has found a way to cling somewhere before it falls to the ground, but whether or not the ant does, the ant will not die if it hits the ground. <strong> The most ancient creature that still exists to this day</strong> It is said that the earth currently has 10 million billion ants, despite the fact that they are killed a lot every day. According to the biological kingdom, it is estimated that ants account for 15-20% of the total number of animals living on land. Ants are animals belonging to the order of membranes, the class of insects. Scientist Corrie Moreau and French colleagues published a study showing that ants appeared between 140 and 170 million years ago. That means they are the most ancient creatures that still exist to this day, despite the violent fluctuations of the earth. Since then, it has been found that ants have a very high ability to survive in all weather conditions. Such survivability is endowed by nature, for they show no sign of changing accordingly. Which means it&#8217;s very likely that an ant 170 million years ago and an ant today would be no different. It is thought that the earth exists about 20,000 different species, with 4,500 families. They are present everywhere on earth. Even the extremely cold places are the poles of the earth, or the hot center of the equator. Ants come in many varieties, but the color is usually just red or black. Especially, there are new species mixed with white color. Ants are gregarious species, with a rather distinct social organization. Each ant nest has an average of about 100,000 children in a colony with a single mother (Christian ants can live up to 30 years). Here, there is something like the organization of a swarm life of bees. The vast majority of ants in the colony are worker ants (who only live for 1-2 years) &#8211; likened to the hardest workers on earth. The job of worker ants is to take care of the queen, incubate eggs, transfer eggs, raise baby ants, build burrows, find food, guard &#8230; Not many people know that all worker ants are female, but their reproductive organs are not fully developed, so they can never become a god, but are forever just &#8220;cool&#8221; feet from birth. until death. Ants are considered to be the strongest species because they can carry food 10 times heavier than themselves. But to transport that heavy amount of food, they must use collective strength in coordination. Together they carry the food they earn very easily, when thousands of them work together. Ants are everywhere, everyone can see them or be bitten by them, but few people know that they also have positive effects. The Masai people of eastern Africa have a habit of using ants as a tool to heal wounds. When a member of the tribe is injured, they will catch a few large ants in the swarm of &#8220;army ants&#8221; so that they bite on both sides of the wound, then remove the ant body, leaving only the ant head on the wound. Since then the wound does not bleed and heals quickly. <strong> And interesting things about ants</strong> Ants are animals with a fairly hygienic life. Specifically, the handling of dead animals. When one ant dies, the other ants in the colony will together carry the dead ant out of the nest, with the sole purpose of keeping it clean and avoiding infection or disease spread. The workers will take care of the carrying, under the command of an ant that is supposed to be in charge of the burial of the colony. It is also surprising to learn that ants are insects with very advanced organizational systems. Along with the Lord ant, worker ant, and burial commander ant, there are also &#8216;teacher ants&#8217; Born, in order to have the necessary skills, they undergo a learning process under the guidance of &#8220;teachers&#8221;. The &#8220;teacher&#8221; ants in the nest will teach the younger ants to do the necessary work. In case the “student” learns slowly and “fails” in the test, they will be transferred to another job that requires less skill. Not only know how to find termites, but ants also know how to &#8220;livestock&#8221; to create food reserves. They feed on insects such as aphids and caterpillars to obtain the sweet substance secreted by these insects. When it&#8217;s time to harvest the sweetener from the insect swarm, the ants &#8220;milk&#8221; using their antennae. It is very interesting to know that ants bring with them the insects they nourished when they move to a new area. It&#8217;s no different than people taking livestock with them to more verdant places. People have talked about the extraordinary in the world of ants. They have no ears but perceive sound from ground vibrations, through sensitive sensors on the pins. They have the ability to exist to the point of fantasy despite the harshness of weather and climate. Therefore, ants are also one of the first creatures on earth to be sent into space by humans in an experiment to conquer the sky. Ants have poor eyesight, but they often use the earth&#8217;s magnetic field to navigate. They are considered the most intelligent insects when in the small head of ants there are more than 250,000 brain cells. As industrious animals, ants are also said to be &#8220;excellent athletes&#8221;. If an ant were about the same size as a human, they could run at an average speed of 55 km/h without ever getting tired. They are also able to lift an object 50 times its own weight with extraordinary strength.</p>
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		<post-id xmlns="com-wordpress:feed-additions:1">22574</post-id>	</item>
		<item>
		<title>Science has discovered the &#8216;zombie&#8217; gene in the brain of the recently deceased</title>
		<link>https://en.spress.net/science-has-discovered-the-zombie-gene-in-the-brain-of-the-recently-deceased/</link>
		
		<dc:creator><![CDATA[Quỳnh Chi]]></dc:creator>
		<pubDate>Tue, 20 Apr 2021 08:30:12 +0000</pubDate>
				<category><![CDATA[Science]]></category>
		<category><![CDATA[brain]]></category>
		<category><![CDATA[Call name]]></category>
		<category><![CDATA[Cease]]></category>
		<category><![CDATA[Cell]]></category>
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		<category><![CDATA[Dance dance]]></category>
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		<category><![CDATA[Died]]></category>
		<category><![CDATA[discovered]]></category>
		<category><![CDATA[Gene]]></category>
		<category><![CDATA[Genetic information]]></category>
		<category><![CDATA[Jeffrey Loeb]]></category>
		<category><![CDATA[Nerve]]></category>
		<category><![CDATA[Neurology]]></category>
		<category><![CDATA[Passed away]]></category>
		<category><![CDATA[Science fiction movie]]></category>
		<category><![CDATA[The posterior brain]]></category>
		<category><![CDATA[The scientist]]></category>
		<category><![CDATA[University of Illinois]]></category>
		<category><![CDATA[Zombie]]></category>
		<guid isPermaLink="false">https://en.spress.net/science-has-discovered-the-zombie-gene-in-the-brain-of-the-recently-deceased/</guid>

					<description><![CDATA[The naming of genes that are most active after brain death as &#8216;zombies&#8217; only made the study more remarkable. This has nothing to do with the zombies in the sci-fi movies. In a new study by scientists from the University of Illinois, Chicago, some cells in the brain start to work harder when the brain [&#8230;]]]></description>
										<content:encoded><![CDATA[<p><strong>The naming of genes that are most active after brain death as &#8216;zombies&#8217; only made the study more remarkable. This has nothing to do with the zombies in the sci-fi movies.</strong><br />
<span id="more-5207"></span> In a new study by scientists from the University of Illinois, Chicago, some cells in the brain start to work harder when the brain stops working.</p>
<p> Researchers have gathered tissue samples from patients for brain research after death. Accordingly, the &#8220;zombie&#8221; gene may influence the study of brain-related diseases if the team prolongs the time to access the sample. The researchers analyzed gene expression from living brain tissue and found that in some cells, gene expression increased after death. They observed that inflamed glial cells develop and grow arm-like branches several hours after death. &#8220;Most research confirms that all activity in the brain stops when the heart stops beating, but not really,&#8221; said Dr. Jeffrey Loeb, Dean of the Department of Neurology and Rehabilitation at the University of Illinois Medical School. , Chicago. <img decoding="async" loading="lazy" src="https://photo-baomoi.zadn.vn/w700_r1/2021_03_30_119_38370377/f1afcf39fc7b15254c6a.jpg" width="625" height="312"> <em> The &#8220;zombie&#8221; genes are activated after the brain stops working. They are glial genes responsible for attention to damaged brain tissue. Photo: Dr. Jeffrey Loeb / UIC. </em> According to the <em> Yourgenome.com</em> Gene expression is the process of converting genetic information in DNA into functional products such as proteins or other molecules. &#8220;It&#8217;s not surprising that glial cells develop right after the heart stops beating. These cells become inflamed and their job is to clear things up after brain damage such as hypoxia or a sudden attack. Stroke, &#8220;Loeb said in a university press release. Also according to him, the connections are very remarkable. Most research uses post-mortem human brain tissue to find treatments for disorders like Autism, Schizophrenia, and Alzheimer&#8217;s disease. However, these studies did not take into account continuation of gene expression or cell activity. &#8220;Our findings will shed light on research on brain tissue in humans. It&#8217;s just that at this point, we haven&#8217;t yet quantified the changes,&#8221; said Loeb. Loeb is the director of UI NeuroRepository (at the University of Illinois), a bank that stores brain tissue, with consent, of patients with neurological disorders. Brain tissue is collected and stored when the patient dies or is in surgery. Not all brain tissue is needed to diagnose the disease, some of which is used for research. Loeb and his team noticed that the gene expression patterns in living brain tissue did not match any previous findings of brain tissue gene expression after death. Therefore, they conducted a simulation experiment to observe the expression of all genes in the human body 24 hours after death. As a result, about 80% of the genes maintain relative stability within 24 hours. These include genes that provide basic functions of the cell. Another group of genes, brain activity (such as memory, thinking, and seizure) quickly subsides within hours of death. A third group of genes &#8211; the &#8220;zombie&#8221; gene &#8211; became more active while the other groups of genes gradually decreased activity. During the first 12 hours of brain death, activity of the &#8220;zombie&#8221; gene peaked. “We found 1,427 genes clustered. A cluster of 317 rapidly depleted genes was predicted to be neuron and coincided with genes dependent on activity. The second cluster of 474 genes is predicted to be glia, consisting of astrocytes and microglia. Notably, due to the rapid decrease in the cluster of nerve cells, the glial cell cluster has significantly increased &#8220;, the scientists shared. These findings mean that researchers need to take these changes into account and minimize the time from death to study as much as possible to curb those changes that are too big, Dr. Loeb said. &#8220;The good news is that we know which genes and cells are stable, are decreasing, and which are increasing over time, which helps guide post-death brain research better,&#8221; he said. Therefore, naming the genes that are most active in the brain after death as &#8220;zombies&#8221; only makes this research more remarkable. This has nothing to do with the zombies in the sci-fi movies. Understanding the brain&#8217;s chemical signals is key to helping scientists find ways to cure brain-damaging diseases like Huntington&#8217;s chorea. This research was supported by an abundance of resources from the University of Illinois neuroscience archive, a collection of brain tissue samples with epilepsy and other ailments.</p>
]]></content:encoded>
					
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">5207</post-id>	</item>
		<item>
		<title>Question 1001: Can an ant survive if it falls from a building&#8217;s roof?</title>
		<link>https://en.spress.net/question-1001-can-an-ant-survive-if-it-falls-from-a-buildings-roof/</link>
		
		<dc:creator><![CDATA[Đỗ Hợp (T/H)]]></dc:creator>
		<pubDate>Mon, 19 Apr 2021 12:05:20 +0000</pubDate>
				<category><![CDATA[Science]]></category>
		<category><![CDATA[Air resistance]]></category>
		<category><![CDATA[ant]]></category>
		<category><![CDATA[Ants]]></category>
		<category><![CDATA[Building]]></category>
		<category><![CDATA[buildings]]></category>
		<category><![CDATA[Carry]]></category>
		<category><![CDATA[Creature]]></category>
		<category><![CDATA[Earth]]></category>
		<category><![CDATA[fall]]></category>
		<category><![CDATA[falls]]></category>
		<category><![CDATA[From the beginning to the end]]></category>
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		<category><![CDATA[Herd]]></category>
		<category><![CDATA[Illusion]]></category>
		<category><![CDATA[Insect]]></category>
		<category><![CDATA[LITTLE]]></category>
		<category><![CDATA[Membrane Wings]]></category>
		<category><![CDATA[Question]]></category>
		<category><![CDATA[Roof]]></category>
		<category><![CDATA[Speed]]></category>
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		<guid isPermaLink="false">https://en.spress.net/question-1001-can-an-ant-survive-if-it-falls-from-a-buildings-roof/</guid>

					<description><![CDATA[Normally, if you accidentally fall from the top of a high-rise building with a height of hundreds of meters, you will be crushed and crushed. What about the little ants? With ants and small animals, the air resistance helps them a lot and makes their falling velocity very slow, sometimes their acceleration is negative (due [&#8230;]]]></description>
										<content:encoded><![CDATA[<p><strong>Normally, if you accidentally fall from the top of a high-rise building with a height of hundreds of meters, you will be crushed and crushed. What about the little ants?</strong><br />
<span id="more-4884"></span> With ants and small animals, the air resistance helps them a lot and makes their falling velocity very slow, sometimes their acceleration is negative (due to the wind blowing upwards). There was no harm in falling from the rooftops of tall buildings.</p>
<p> All objects falling into the air have terminal velocities depending on their size, shape and mass. The terminal velocity of an ant (6.4 km / h, according to the physics department of the University of Illinois) will be much different from the human terminal velocity (about 200 km / h). &#8220;For rats and any small animal, there&#8217;s really nothing dangerous. You can drop a mouse into a mine nearly 1,000 meters deep and when it hits the bottom, it gets dizzy and runs away. , provided that the ground is quite soft The air resistance acting on the moving object is proportional to the surface of the object.If the length, width and height of an animal are divided by 10, then the mass. Its amount is reduced by 1000 times while the surface area is reduced by only 100 times, so the air resistance for small animals is usually 10 times higher than the actuation force. Force is usually not an issue for insects, it can fall freely without danger, with the ability to cling. &#8221; Michael Kaspari is an ecologist at the University of Oklahoma (USA), who has studied the aerial activities of wingless ants. Research shows that when ants are confronted with a predator, they jump in the air from tall branches and use their legs to steer their flight to the tree. The longer hind legs will allow the ant to travel through the air, preventing it from falling into places they deem dangerous. With this ability, it is possible that the ant has managed to cling to something before it falls to the ground, and whether it can grip or not, the ant will not die if it lands. <strong> The most ancient creatures still exist today</strong> It is thought that the earth currently has 10 million billion ants, despite the fact that they are killed a lot every day. According to biota, it is estimated that ants make up about 15-20% of the total number of terrestrial animals. Ants are animals belonging to the membrane wing, the layer of insects. Scientist Corrie Moreau and his French colleagues published a study that found ants appeared 140 to 170 million years ago. That means they are the most ancient creatures that still exist today, despite the intense fluctuations of the earth. Since then, it has been found that ants have a very high ability to survive in all weather conditions. Such survival is bestowed on nature, since they show no signs of consistent change. Which means it is very likely that an ant 170 million years ago and an ant now are no different. It is thought that the earth exists about 20,000 different species, with 4,500 families. They are found all over the earth. Even the extremely cold places are the poles of the earth, or the hot center of the equator. Ants come in many varieties, but the colors are usually just red or black. Especially, there is a species with white color added. Ants live in herds, with a quite separate social organization. Each nest has an average of about 100,000 children in a herd with a single mother (God ants, can live up to 30 years). Here, there is something like the way bees organize the swarms of life. The great majority of baby ants in the herd are worker ants (who only live 1-2 years) &#8211; such as the hardest and most hardworking workers on earth. The job of worker ants is to take care of queens, incubate eggs, transfer eggs, raise young ants, build caves, forage, guard &#8230; Few people know that all worker ants are female, but their reproductive organs are not fully developed, so they can never become God prejudices, but are forever just &#8220;cu-li&#8221; legs from birth. to death. Ants are considered the most powerful because they can carry food 10 times heavier than them. But to transport that heavy food, they have to use collective strength in coordination. Together, they carry the food they can find easily, when thousands of them work together. Ants are everywhere, anyone can see them or be stung by them, but few people know that they also have positive effects. The Masai people of eastern Africa have a habit of using ants as tools for wound healing. When one of the tribe was injured, they would capture a few large ones from the &#8220;army ant&#8221; group so that they would bite on either side of the wound, then remove the body, leaving only the ants on the wound. From there, the wound did not bleed and healed quickly. <strong> And interesting things about ants</strong> Ants are animals with a fairly sanitary life. Specifically the handling of the dead. When one is dead, the other ants in the herd together carry the dead ants out of the nest, with the sole purpose of keeping clean, avoiding infection or disease spreading. Worker ants will take care of carrying under the command of an ant that is believed to be responsible for the funeral of the flock. It was also surprising that ants were insects with a very advanced organizational system. Along with God ants, worker ants, and the commanding ants of burial, there are also &#8220;teacher&#8221; ants. Born, to have the necessary skills, they go through a learning process under the guidance of &#8220;teachers&#8221;. The &#8220;teacher&#8221; ants in the nest will teach the younger ants to do the necessary work. In the event that &#8220;students&#8221; learn slowly and &#8220;fail&#8221; on a test, they will be transferred to another job that requires less skills. Not only know how to find termites, but also know &#8220;breeding&#8221; to create a food reserve. They know how to feed insects such as aphids and moths to get the sweetness they produce. When it is time to harvest the sweeteners from the insect swarm, the ants &#8220;milk&#8221; using their antennae. It is extremely interesting to know that ant colonies carry a swarm of insects that they cultivate when moving to a new area. It is no different than humans taking cattle along to places where the grass is lush. People have talked about extraordinary in the ant world. They do not have ears but senses sounds from ground vibrations through the sensitive sensors on their legs. They have the ability to survive miraculously despite the extreme weather and climate. That is why ants are also one of the first organisms on earth to be sent to space by humans in experiments to conquer the sky. Ants have poor eyesight, in return they often use the earth&#8217;s magnetic field to guide their way. They are considered the smartest insects when there are more than 250,000 brain cells in the small head of ants. As a hard-working animal, ants are also said to be &#8220;great athletes&#8221;. If an ant was about the size of a human, then it could run at an average running speed of 55 km / h without ever getting tired. They can once again lift an object 50 times its weight with incredible strength.</p>
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		<post-id xmlns="com-wordpress:feed-additions:1">4884</post-id>	</item>
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