What is Selectivity?

What is Selectivity?

Biology topics 1 of the most widespread concepts in life is selectivity. Selectivity is found in sciences like biology, to politics.
In biology, when we come up with things to treat or destroy cancer cells, what is the problem. The problem that we have to keep in mind, is that it won't destroy our non-cancer cells in our body.
In politics and law enforcement, an example of selectivity is gun rights, who can and can't legally own and be convicted of gun possession. How can you make it so good people can own guns, but not bad people, for example, objectively. Same thing with the death penalty. We want to set the standards high, but low enough that no innocent person gets the death penalty.
Selectivity in chemistry for example is water treatment and sewage treatment, for applications. 1 of the toughest applications is saltwater removal, how do you remove salt from water in a cost-efficient way, and done in a mass scale, like from an ocean. In sewage treatment, it is easy to separate into 3 states of matter: solids, liquids, and gases, but selectivity among those states, gets more difficult. If something has a property that reacts with a magnet, then that type of selectivity is useful, say, for recycling centers.
In Chicago gangs, selectivity can be an issue for snitches. When snitches come from large families all in the gang, vs. snitches that have no gang family. It is easier to SOS snitches who have no gang family, compared to ones who have lots of gang family.
When people want to come up with some new principle, for example, "I want to be a slut-shamer now" then they have to think about who in their family and closest friends, are not a slut, cuz if they do, then it becomes harder to develop a slut-shaming mentality. Else, they develop a contradictory-personality. There's people out there who's father was killed by the police, so they protest against the police. But that generally means they can't in the future have a son who becomes a police officer some day, cuz what if their son kills someone while on-duty, then will such a person protest against their son?
Another political example is Republicans (and whoever) that are against abortion. Combined with being supportive of the death penalty or life in prison for having abortions. Such people tend to not have daughters that will have abortions. Then, if it happened, would they wish their daughter the death penalty, from having single or multiple abortions?
What are some examples of selectivity in your life?
I was so happy to find out that certain sunlight ranges kills viruses. Sunlight at wavelengths of 260 nm kill viruses the most, which is UV-C, the worst type of sunlight radiation. Sunlight on Earth falls at 290 nm and greater, so there isn't much of that on the surface. However, the downfall, as I find out, is that wavelength is also destructive to the human eye, so you can't really be at a place where sunlight kills viruses the most. So this issue is for people living in higher-altitudes and snowy areas. Snow reflects as much as 80% of UV light. So people skiing at higher altitudes have to wear sunglasses to avoid getting that level of wavelength in their eyes. Compared to people living in the tropics, plants are good absorbers of UV (for the most part, some plants can prevent absortion of UV-B).
In laundry detergents, hydrogen peroxide has some advantages over bleach. Bleach kills bacteria, viruses, and changes color of clothes, whereas hydrogen peroxide kills bacteria, viruses, and without changing the color of clothes.
In the U.S., more people were deported during Obama's 8 years than in Bush's 8 years. From 2001-2008, 2 million people deported under Bush, and from 2009-2016, 3.2 million deported under Obama, and yet Obama was put into pressure when his aunt was to be deported because she also came here illegally and denied status. But she ended up dying, at age 61, so it never really came to that.
Examples of selectivity devices: firewall and the liver.
-For flow of data and web traffic: a firewall. A firewall is a network security device or software that is designed to monitor, filter, and control incoming and outgoing network traffic based on an organization's previously established security policies. Firewalls act as a barrier between a trusted internal network and untrusted external networks, such as the internet. They are essential for protecting computer systems and networks from unauthorized access, cyberattacks, and other security threats.
-For "good and bad e-mails" it's simply called an e-mail filter.
-For toxins we eat, that's the liver. It does detoxification processes to the foods we eat.
-In electronics, they're simply called filter, such as band-pass filter or RF filter (radio-frequency) to reduce interference. A band-pass filter permits a specific range of frequencies to pass through, while attenuating frequencies outside of that range. So it is useful for selecting a narrow band of frequencies. These filters can be found in antennas.
-In electricity, we have circuit breakers and surge protectors. Circuit breakers are for when the amp is too high, and surge protectors are for when the voltage is too high. (Can they both be triggered at the same time, without antagonizing each other, yes.). There is also a 1-time circuit breaker called the fuse. A fuse which is a protective device that contains a metal wire or strip that melts when excessive current flows through it. When the wire melts, it opens the circuit, interrupting the flow of current and preventing damage to downstream components.
-There is also a color filter that only allows a select wavelength of light range.
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Biology topics	1 of the most widespread concepts in life is selectivity. Selectivity is found in sciences like biology, to politics. In biology, when we come up with things to treat or destroy cancer cells, what is the problem. The problem that we have to keep in mind, is that it won't destroy our non-cancer cells in our body. In politics and law enforcement, an example of selectivity is gun rights, who can and can't legally own and be convicted of gun possession. How can you make it so good people can own guns, but not bad people, for example, objectively. Same thing with the death penalty. We want to set the standards high, but low enough that no innocent person gets the death penalty. Selectivity in chemistry for example is water treatment and sewage treatment, for applications. 1 of the toughest applications is saltwater removal, how do you remove salt from water in a cost-efficient way, and done in a mass scale, like from an ocean. In sewage treatment, it is easy to separate into 3 states of matter: solids, liquids, and gases, but selectivity among those states, gets more difficult. If something has a property that reacts with a magnet, then that type of selectivity is useful, say, for recycling centers. In Chicago gangs, selectivity can be an issue for snitches. When snitches come from large families all in the gang, vs. snitches that have no gang family. It is easier to SOS snitches who have no gang family, compared to ones who have lots of gang family. When people want to come up with some new principle, for example, "I want to be a slut-shamer now" then they have to think about who in their family and closest friends, are not a slut, cuz if they do, then it becomes harder to develop a slut-shaming mentality. Else, they develop a contradictory-personality. There's people out there who's father was killed by the police, so they protest against the police. But that generally means they can't in the future have a son who becomes a police officer some day, cuz what if their son kills someone while on-duty, then will such a person protest against their son? Another political example is Republicans (and whoever) that are against abortion. Combined with being supportive of the death penalty or life in prison for having abortions. Such people tend to not have daughters that will have abortions. Then, if it happened, would they wish their daughter the death penalty, from having single or multiple abortions? What are some examples of selectivity in your life? I was so happy to find out that certain sunlight ranges kills viruses. Sunlight at wavelengths of 260 nm kill viruses the most, which is UV-C, the worst type of sunlight radiation. Sunlight on Earth falls at 290 nm and greater, so there isn't much of that on the surface. However, the downfall, as I find out, is that wavelength is also destructive to the human eye, so you can't really be at a place where sunlight kills viruses the most. So this issue is for people living in higher-altitudes and snowy areas. Snow reflects as much as 80% of UV light. So people skiing at higher altitudes have to wear sunglasses to avoid getting that level of wavelength in their eyes. Compared to people living in the tropics, plants are good absorbers of UV (for the most part, some plants can prevent absortion of UV-B). In laundry detergents, hydrogen peroxide has some advantages over bleach. Bleach kills bacteria, viruses, and changes color of clothes, whereas hydrogen peroxide kills bacteria, viruses, and without changing the color of clothes. In the U.S., more people were deported during Obama's 8 years than in Bush's 8 years. From 2001-2008, 2 million people deported under Bush, and from 2009-2016, 3.2 million deported under Obama, and yet Obama was put into pressure when his aunt was to be deported because she also came here illegally and denied status. But she ended up dying, at age 61, so it never really came to that. Examples of selectivity devices: firewall and the liver. -For flow of data and web traffic: a firewall. A firewall is a network security device or software that is designed to monitor, filter, and control incoming and outgoing network traffic based on an organization's previously established security policies. Firewalls act as a barrier between a trusted internal network and untrusted external networks, such as the internet. They are essential for protecting computer systems and networks from unauthorized access, cyberattacks, and other security threats. -For "good and bad e-mails" it's simply called an e-mail filter. -For toxins we eat, that's the liver. It does detoxification processes to the foods we eat. -In electronics, they're simply called filter, such as band-pass filter or RF filter (radio-frequency) to reduce interference. A band-pass filter permits a specific range of frequencies to pass through, while attenuating frequencies outside of that range. So it is useful for selecting a narrow band of frequencies. These filters can be found in antennas. -In electricity, we have circuit breakers and surge protectors. Circuit breakers are for when the amp is too high, and surge protectors are for when the voltage is too high. (Can they both be triggered at the same time, without antagonizing each other, yes.). There is also a 1-time circuit breaker called the fuse. A fuse which is a protective device that contains a metal wire or strip that melts when excessive current flows through it. When the wire melts, it opens the circuit, interrupting the flow of current and preventing damage to downstream components. -There is also a color filter that only allows a select wavelength of light range.	About.Us
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Biology-Chemistry
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Chemistry-Physics
Colligative properties Spectroscopy Material Science Magnetism Quantum Physics
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