Skip to main content

tv   Tomorrow Today  Deutsche Welle  January 7, 2024 12:30am-1:01am CET

12:30 am
crazy, the viruses and bacteria can make mistakes. so we do everything we can to fight them off. but some of my codes are actually useful. the intestinal bacteria of a pregnant woman isn't just important to have health. what she consumes also directly impacts her babies immune system. and some viruses are useful to they can even help extract valuable raw materials from electrical waste. welcome to tomorrow or today dw science program, the
12:31 am
we humans a driving more and more animals from the habitats, increasing the risk of exposure to diseases. that's what's happening in the prison in rain forest, near the city of malice were such as back around the hunt that potentially dangerous fire sides the night. sometimes it could be more stable very. i think it's your vehicle. adam handy of his team hang tramps and the amazon rain forest there on the mosquito hunt . that's because these mosquitoes could carry a new virus that could trigger them next. pandemic if so, with the virus hunters find it in time. there the 1st ones who could detect these collections for file of successive or of the rain far as kind of you said to be
12:32 am
home to the particularly dangerous mosquitoes administered him, are targeting them and have any falling into the trap. no, most cases, the virus hunters are not only after mosquitoes. they also want to catch monkeys. the number of viruses and the animal kingdom is astronomical. we'll never find all of them. that's why it's so important to monitor the danger spots where humans and animals collide. like in the amazon rain forest, a key. we my 1000 things in my now and monkeys mount people directly. it was pretty much the squarespace, so they actually live in the jungle. but they come to farms or native fruits and food in the people store. it is all the dice sending methyl you, there's a constant exchange, commuting towards this. you must, i think that a cell now. so it's $2200000.00 inhabitants is the capital of the state of us own
12:33 am
us. the police is a so called hot spot here and people and wild animals collide. and the risk of a new virus jumping over increases because humans are penetrating deeper and deeper into these viruses. research are much hello, gordo wants to capture monkeys. the animals are increasingly coming into contact with people because they are losing their habitat. they are forced to search for food near humans. marcello hopes that to colored cameron's will fall into the trap . these kind of a tricky day are highly endangered, living only around my house. the 2 can transmit diseases to humans, but can also be infected themselves by humans with yellow fever or corona viruses, for example, that way viruses can survive and keep on mutating. pretty much as my odd is thing was. there's another complicating factor with great, which is that they are often hunted in rural areas aside those bradley minutes or
12:34 am
so. the way i see i be doing this habit of hunting wild animals handling the dead animal. contact with blood and vis or for example, is also another source of infection and transmission of disease. a 4 digit code digest it as soon as you do and this, this is not going to change any time soon. many low income families in rural areas rely on eating wild animal meat. and that's how dangerous viruses can jump to humans. marcello gordo and his team therefore regularly take blood samples from the animals and detached them for viruses and pathogens. then they released them again. much more difficult to monitor arms, egos, adam, hindi, and his team are on the trail of mosquitoes. mosquitoes, primarily transmit so called arbel viruses such as west nile or dang,
12:35 am
gate. these viruses replicate invertebrates and are transmitted by blood sucking insects through bytes. another research station is located in the heart of a 10000 hector relatively intact forest reserve. the question is to mosquitoes deep in the forest carry different viruses than those on the outskirts finding out is difficult. for the beginning, they were really difficult for us to catch this not been a lot of work done with them. and so we spend lots of time in the fields. i'm trying to understand where we can kind of somehow they behave. um, and we've suffered a lot with the less so where do they live the really dangerous mosquitoes at the very top of the trees, adam suspects of a species that are threatening to humans. to prove it, the mosquito research or a set up a 10 meter high research platforms,
12:36 am
in the middle of the forest the santa food, most pizza is going to be quite dangerous for people because these on things that we normally come into contact with. so they're likely to expose humans to pathogens . the immune system is not used to the mosquito species that's leaving the rain far as kind of be like it hot and dry down on the forest floor. the other species that like it shade here in cooler. but when do the dangerous mosquitoes come down from the tree top? to find out adam and his team catch mosquitoes in different places at different times to. so when we see a so far as stage, whether it's through the fire station to build housing, puts a timber or to create 2 roads we all to the conditions of the might to climate. so as far as the edge which has probably have previously been made so far as kind of
12:37 am
be again becomes houghton dry. and these a conditions said these kind of p dwelling mosquitoes bases like when they come into contact with these hot and dry conditions, the more likely to to sense of ground level and potentially have contacts, switching surveillance and the jungle may work, but it would be easier to curb brain far as deforestation. after all dangerous mosquito could be lurking along every new road. our bodies are constantly confronted with new viruses and bacteria. how does our immune system learn to recognize new pathogens? and how can it tell the difference between dangerous invaders and microbes that a harmless or even helpful the immune system. we know it as our defense system, but it has another much bigger job. and that is to keep us and our my cro bill
12:38 am
inmates in balance. how exactly the immune system does. this is highly complicated and not yet fully understood. one thing is certain, it must react without over reacting. so it shouldn't just attack enemies. it must also leave friends alone. for example, microbes that help with digestion produce vital substances or displace pathogens. but how does the immune system know which microbes are the good guys and who the bad guys are? as with every system in the body, the immune system also has controls that fire it up or slow it down, or our microbial inmates help with this fine tuning microbes convince or removing system to let them stay the syllabus even though it recognizes them as invaders. this is exactly what makes our immune system
12:39 am
top notch. it can react quickly to threats. and at the same time, it slowed down so that it doesn't lash out wildly. as in the case, for example, with allergies, asthma or auto immune diseases. in these diseases, the body attacks harmless substances or eating itself with microbes can also fight all the jews directly. for example, as a kind of runs keeper, that prevents a pathogen from entering the body and causing an infection. 5 solely and typically there is much to suggest that our immune system exists primarily to keep our organism in balance with all its fellow inhabitants. the defense against pathogens is only a side effect, but an important one. the
12:40 am
mothers begin protecting the babies from viruses is full. that even born what pregnant women age is crucial because the diets influence which might courage collection the in test times of the new born child. the micro biome is the foundation of a healthy immune system. birth is the 1st contact with the world, the bacteria in the birth canal, the baby directly encounters and absorbs the mother's intestinal bacteria for the 1st time. these bacteria form of 1st protective shields are nice and the even help the baby build its own immune system. the then the off the bed when we come into the world, our immune system is not yet fully formed. it has to learn during life to recognize
12:41 am
pathogens that is viruses and bacteria and to fight them off. the intestinal micro biome. so plays an important role in this build up process and leads us to be efficient, recognizing and slicing of nitrogen. it's late to own molecular physicians. stephanie can research as the influence of got bacteria on the child's immune system, that insults guitar. in a high profile study, she was able to prove that it's crucial what mothers eat during their pregnancy. this is because the mother's intestinal bacteria are already influencing the child to be the the researcher was able to show that messenger substances from maternal intestinal bacteria are transferred to the child via the plus center and thus influenced the development of the immune system. ready ready almost a symbol you have to be consciously, definitely victim and rich balance buried. and think about whether you really need
12:42 am
to eat that chopped close to that kenzie or whether you can do with balance. it continues before and maybe think a little more often about what to reach and when and, and what quantities invasion making if nutrition is also crucial for a healthy, a mean system in young children. that's why stephanie can wants to conduct another study to see how a child's micro biome develops in the 1st few years of life. unless we did one with us study, we want to find out how the child's micro biome develops also. but especially in the 1st 2 years of life and of particular interest to us, what influence breastmilk plays have, and whether that can have a long term impact on the child's health and susceptibility to certain diseases. kindly have him kind of the mother is pump some rest, no 1st step in the gun on
12:43 am
a swab on the arm gives information about the bacteria on the skin. but the bacteria in this do are decisive. she takes these from a freshly filled diaper. the feces are particularly interesting for her because here she finds the intestinal bacteria that make up the micro biome, the anal pumpkin to the nutrition of the child. and the 1st use of life is particularly important. because we know that nutrition has a great influence on the intestinal floor outside. often. we also know that the intestinal flora is formed in the 1st 2 to 3 years when the micro biome can still be control and changed. this can have long term effects on the micro biome composition on the health of the child, and later in life, that's just not possible. maybe even gone, smith will know. lucas, for her, it's clear. breastmilk is certainly the best nutrition in the 1st few months. but mothers who can breast feed should also benefit from her research lab for us to go
12:44 am
from once. i know that for the longest time we hope to understand which bacteria a useful early in life and whether we could give them to them. you're the ones who own getting breast milk as a profile sick, probiotic, a god that on. and one can also imagine that both will feed in will become even more sophisticated unable. no, i was good. i asked of it. she's at the very beginning of her study. she wants to understand the world of bacteria even better in order to be able to use it for better health for all children. 39, truly in my kirby, all cells including bacteria, viruses, and funky live own. and in the opportunities the gal that is the main new case is the human micro biome that um micro biome is not this diverse as it could be. why is that? and is it also true of animals? a group of pigs and
12:45 am
a pile of pig done. these 2 women are interested in both the veterinarian here at the ash about a animal. a park is happy about healthy animals. and the molecular biologist is interested in their faces. they've taken almost 400 stool samples from 38 different animals from susan parks to investigate which and how many micro organisms are in them. what about 2 and as of one reason for my motivation is because micro organisms are. so under estimated time, people always talk about germs negatively. actually 99.999 percent of the micro organisms that surround us are good for us. we live in cindy osis with them. the whole human system wouldn't function without micro organisms. and that's really the combined genetic material of all micro organisms in a particular environment is called the micro biome. to research the micro biome, they looked at primates, carnivores,
12:46 am
and even toad and on toad on units on this fun, ruminants are especially interesting because we know they have a very diverse micro biome. due to the fact that the justin takes place twice out. it's very effective from the energy yield. it's a bit like a bio gas plant. so the course stuff comes in at the top and then it's broken down one step at a time and then ask about, in order to be able to digest hay and grass cows have millions of different bacteria in their room. and in their research lab at q university, scientists dissolve stool samples until they have the smallest parts of the cells. what remains is the dna. they've also studied samples from humans, which show that our micro organisms are not very diverse. the for she, magic god, you need the more diverse, the micro organisms in ad on our body, the better the balance of our immune system. and we suspect that reduced microbial
12:47 am
diversity is also associated with them using system deficiencies which can lead to the development of chronic inflammatory diseases. i'm 4 and 5 starter. for example, crohn's disease or multiple sclerosis. their study also shows that the micro biomes of people from some african countries are much more diverse. this is because they eat differently off and live in large groups and have close contact to their farm. animals, causing a bung says that we too should visit farms more often, but above all, move away from industrial sugar and eat more plant based diet. just like them fun like bacteria and micro organisms. viruses are not living organisms. they require a host in order to survive. there are also viruses that
12:48 am
infect and replicate only in bacterial cells. these so called bacteria of stages are often used for food production medicine gene technologies. and they can even help extract room materials from electrical waste without the need for toxic chemicals. to date, it's been almost impossible to efficiently recycle electrical devices by separating them into more than 50 different substances. one by one. this unlikely environmental thread is making life difficult for recycling companies. even though the energy saving light bulbs used to be a beacon of hope for german energy policy, the light bulbs themselves are full of poison. on the one hand, they contain the highly toxic mercury. but there's also a mix of non toxic valuable powders made up of rear earth and other substances.
12:49 am
when mixed together, they produce the white light but separating those valuable substances from mercury and from each other is so complex. tech energy saving lamps usually don't get recycled at all. that's not moved. a lot of powder is stored separately as hazardous waste on the ground and contained in these energy saving lamps contain mercury, which is toxic. and we don't want to, it's in our household. this is the bitter reality of recycling the waste. up until now, thanks to 5 books, handbooks, institute for resource technology. they want to show the recycling industry that they're making the impossible possible. the plan on extracting the rear or from energy saving lightbulbs. to do so, they use a surprising tool. the bacterial range m. 13 bacterial features
12:50 am
are viruses that don't infect humans? animals more plants, they only effect bacteria. the researchers now hope that these pages can identify and isolate where it says, well the bacterial phage, and 3rd gene has a special property. it has results made of protein on its surface. the researchers now want to use these bristles as so called bio angles. if the virus is genetically modified, it develops a wide variety of these bio angles, billions of different ones in science. this collection of m 13 variants or mutations, is called of fiji library. each individual variant has its own highly specific quote to fish out the records in the energy saving light bulbs the for what they call selection in the test tube. the
12:51 am
researchers 1st find out which em 13 variant might be interested in where are they therefore mix one of the rear. it's to be recycled with a complete m 13 page library. busy vm 13 mutants that happens to have the right surface protein gets stuck onto the rare earth in the test tube experiment. the phage and the rare earth part then separated from the rest of the m. 13 variance in the centrifuge or the rest of the page library is scratch the. the 2nd step determines which m. 13 variant is involved. the corresponding angle brussel for the pure a surface protein, not the virus can then be ordered in large quantities. in step 3, this surface protein is attached to tiny back that's important for later use on a large scale by the recycling industry. in this process,
12:52 am
the phage proteins binding to microscopic federal magnetic fields. the results, magnetic fields covered with spines of m. 13 bio angles resembling a chest. the green light is the m 13 vile angles attached to the bead, ready to pounce on a very specific river. but how did the helm hold? researchers come up with such a novel idea to be original idea actually came from the american george pearson smith. in 1985, he recognized the potential of the odd m, 13 pretzels, and made the 1st limitation attempts so that he could use the personal bio and ghost that's evidence of very specific substances like anti bodies or other proteins. he suggested randomly producing a wide variety of virus mutations. george pearson smith idea,
12:53 am
triumphed in laboratories around the world. there were now billions of variance of m, 13, the principles of which had been randomly altered the so called stage library mentioned earlier. smith deliberately won the 2018 nobel prize in chemistry for his idea. and then we did seen on this stage display is used in medicine engine, pharmacological application that's very rarely one works with metal, with an organic substances, but a gram of level. how that contains $190.00 milligrams of read us, there is no richer results. the rest of them, these energy saving lamps be spent on transmit side. your work with a rare earth contained in an energy saving light bulbs. that questions being put to the test here. this vessel contains a mixture of luminous powder, from energy saving light, bulbs, and neon tubes. now the magnetized and 13 bio angles are simply added and stirred
12:54 am
briefly. then another magnet goes into action, as is also common in the recycling industry on a large scale. when the mixture of bio angles and rear roots has passed through this magnet, the in 13 via windows, which if the experiment has worked, should have combined with the desired rivers by now and be stuck to the magnet. if the magnet is turned off, the magnetized pile angles and rear ers should be able to detach from them magnet and be transferred to a new container. would you kind of do that piece by piece for each element, and then i'll separation everything by type at least in theory. the quick test with the laser shows whether it also works in practice. if the process was successful, the suspension should now blow green instead of white. and
12:55 am
indeed, the round earth is now present in almost pure form. if it works with energy saving light bulbs, it should at least in principle, apply to other items like cell phones to other things that hasn't been any research results yet on how to successfully separate all 60 elements from a smartphone and reinstalled them in a new one. that's why we should be interested in making the best thing use of on domestic resources. and that's a waste because a waste contains real treasures that are waiting to be under the pepsi. and so the sweet sedition of tomorrow today dw science programs. thanks for watching. and see you next time the
12:56 am
the
12:57 am
he has hoped she could make it to your assistant warehouse. now, hobby is back in his home country of gambia, in west africa, trying to set up a business with us of an international aid organization. but this capital one is this plan also destined to fail home again coming up on d, w. b in good shape. having children easy as
12:58 am
pie for is it when the wish for a baby remains unfulfilled, how can women and men increase their fertility? and when things finally do work out how to expect and mothers get for pregnancy. well, the did shave in 30 minutes on d. w. the fast fashion as an environmental nightmare. a closing graveyard image of land desert. this is where things wealthy industrial nations no longer need and the lightest textile waste
12:59 am
gets stranded here. all about the final stuff in a global fashion industry. fast fashion. watch now on youtube. you can draw the line between the spacings because i don't believe that spacing is, is i'm all really relevant criteria in any more than i believe that rice or sex is on frontier. and. 2 2 should. 2 2 we humans are closer to a chimpanzee vanishing. pansy is even to a dog. the dog here series about our complex relationship with animals. watch now on youtube. d. w documentary. the only way i can be on the top is to create my own empire, discover stories to just
1:00 am
to click away the during the destination, right. sign this document trees before slide now. okay, name treat the . this is the w and using these around top stories, you a secretary of state and to me blinking say as he wants to make sure the conflict in concert doesn't spread. blinking made the comments during a diplomatic mission around the middle east. he's been in turkey and grace, he's now in jordan and we'll move on to kata egypt and israel at least 11 people, including 5 children have been killed in a russian missile strike in the eastern ukrainian region of don't yet. russia has intensified. it's a tax on ukraine since the.

11 Views

info Stream Only

Uploaded by TV Archive on