Skip to main content

tv   Tomorrow Today - The Science Magazine  Deutsche Welle  January 7, 2019 9:30am-10:00am CET

9:30 am
the album was returned to the. to visit friends i don't think i'd ever go back there to live where i live there again i don't know so i'm not sure. global news that matters. made for mines. hello and welcome to a new edition of tamara today the science show on d w. coming up on the program. fresh brewed coffee is it healthy or not. our skin is literally crawling with millions of minute creatures. and our water is laced with traces of medication how can it be removed.
9:31 am
these on average doodles or scribbles on their hieroglyphs the writing system used in ancient egypt this symbol of vulture corresponds to the lesser. this represents the lesser owing. to other symbols represent whole words like. god. not everything has been decided in the ancient texts that have been found to date is getting easier to do with the help of unsufficient intelligence. hieroglyphs pyramids and pharaohs are all part of the assassin's creed origins video game developers added an educational feature based on authentic ancient egyptian sources canadian historian maxine dong helped develop the educational concept the discovery tour could prove very useful for schools and museums.
9:32 am
we would make a game for entertainment for fun and we. the discrepancy is with history we recreate the narrative we create the story this time around we're used the same environment but it's not about conflict anymore it's not about the narrative it's really more about taking the time to explore. after a while developers realize that some of the hieroglyphs ancient egyptian writing can be extremely difficult to g. code that gave them an idea for a research project which google wanted to support. realize that there's a. potential to decide for the year and with it to make it more accessible it takes years and years for someone to learn how you are with over it and where as when we use a computer and a human we can do it easier. the computer uses artificial intelligence the computerized program learns to recognize and translate hieroglyphs the hieroglyph project needs a vast quantities of data so egyptologists worldwide are using an open source
9:33 am
software to upload and share images of ancient inscriptions to the platform. so the first step in the project will be extracting a card with a promise for a wide variety of original sources before working on the tools and algorithms that come to recognize in the darkness will tomorrow then we can analyze existing translations matching hard to fix sequences to unlock them meaning. that could be a boon for tonio sebastian rishta a professor of egypt on a g. at the free university in berlin. his team has been working on an electronic dictionary of an ancient egyptian for some thirty years it's still unfinished as hieroglyphs are far more complex than letters in a modern alphabet. and those winds up with the unlike are abstract letters hieroglyphs or pictorial so you could draw them like tiny logos and make variations
9:34 am
and then you could place this or that into the hands of these little figures and. leads to the essential problem here the symbols are ambivalent even as. there are several variations of the same symbol. and this is. the study of egyptology lacks enough funding to regularly work with artificial intelligence wish to welcome the game developers initiative but a usable computer translation from hieroglyphs is still. just as you could hardly translate korean texan into german with today's computers . you can imagine how difficult it would be to achieve a grammatically and linguistically correct translation. from a string of hieroglyphics symbols into any modern language. scientists and gamers are working together to solve the riddles of ancient egypt the databases are growing fast as egyptologists contribute decrypted translations
9:35 am
to the new digital hieroglyph library. the ancient egyptians right there in rows columns can be read from left to rice bowl from right to left an advantage for both right and left handed scribes here's our web video of the week. whether you're left or right and it has nothing to do with you but with the part of the brain that controls. its many of the left top of the brain. it's the right. left hand is usually prefer the left side in other movements too. for example when picking. watch out. or having. less people and you realize their preference one thank you lloyd. someone
9:36 am
else did give it a try. brewing coffee was once quite a messy affair milly's have been found that annoying she was a housewife who lived in dresden at the end of the nineteenth century and she loved coffee but she hated the pesky grounds that stuck to her tongue. then she had no idea she punched holes in a pot with a nail put in a piece of plotting paper on the coffee filter was invented. after applying for a patient she started a filter producing company. simple process first the filter then ground coffee beans and hot water and outcomes delicious coffee free from those insufferable grounds.
9:37 am
coffee has often been the subject of scientific studies a recent one caused euphoric headlines the authors say that beverage is a real panacea according to the analysis regular consumption supposedly lowers the risk of heart attack stroke and even cancer. although there is no solid proof yet the study says indicators on strong. showings of them can be said is that car for years and harmful and that it really does minimize risks associated with cardiovascular disease stroke and heart attacks. so for me personally saying that coffee can help prevent someone from having a heart attack or getting neurological disease or cancer that's going too far. is
9:38 am
the overall what is true is that this study has shown for the first time that affects also verify. the facts could exist clinton nutrition expert christian zina is a big fan of the beverage both privately and professionally he recommends coffee to patients with diseases of the liver. there's no disputing that caffeine consumption has a strong protective effect when it comes to liver disease not just in terms of helping to reduce inflammation but also in hindering liver fibrosis pathological changes to its connective tissue. for patients who have fatty liver disease not caused by excessive alcohol consumption you know recommends up to six cups of coffee a day he says one compound in particular plays a key role. as a source for the caffeine in coffee or first specific cell types in the liver by inhibiting their activity. him and in the end that helps forestall liver fibrosis
9:39 am
and that in turn stops the advance of liver failure or cirrhosis. researches at the university of kaiser's loud turn in western germany have discovered that coffee can even affect your genes. were able to show that the regular consumption of coffee protects d.n.a. and that in turn could be associated with prevention of degenerative diseases like cancer or alzheimer's. in that four weeks study the researchers looked at d.n.a. isolated from the blood of eighty four men half of the test subjects strength three large cups of black coffee a day the other half drank the same amount of water. in the end the team examined d.n.a. samples from both groups. in africa is the d.n.a. from two cells on the left hand side is the damage d.n.a. is pretty diffuse that's because these fine breaks in the molecules create this
9:40 am
halo effect live on the right is a cell with. little or no damage to the d.n.a. we were able to show that four weeks of coffee consumption in our test subjects reduced this minor damage. to. the way the coffee is prepared has an impact on this effect espresso beans are roasted longer than those for drip coffee that reduces the amount of acid in the concentrated shot making it easier on the stomach but filtered coffee contains less of the compounds caff a stolen car will two substances that have a negative effect on cholesterol levels in the blood they don't pass through the filter so for those who have high cholesterol levels filter coffee is the better choice. because of it stimulating effect cardiologists used to warn heart patients to stay away from coughing but they've now changed their minds. and you mentioned some people have heart palpitations after two carbs or higher blood
9:41 am
pressure those patients should stop with one. but if you like to drink up to five cups a day and tolerate it well then from a medical point of view there is no reason to stop. the. exceptions to that rule are pregnant women all those who show symptoms of bone loss as well as patients with cardiac arrhythmia. the study shows that drinking coffee could have negative effects in such cases there are more than a thousand compounds in coffee research is still trying to figure out exactly which aren't good for you you could just has a little shall we have to look and see whether we can enrich a particular substances in the beans and whether we'll be able to isolate them for possible uses medications that's the direction research is taking is a given but if it's an execution. that's entailed then go ahead and treat yourself to a tasty cup of java. whether it's good for us or not one
9:42 am
thing coffee does have. is that distinct aroma. how about us and little smell test is it when you find nice or unpleasant and what about fish or lemons the germans tend to associate the scent of lemons with cleanliness but for spaniards chlorine smells fresh russians feel alive to fly that smells clean that eliot from poland wants to know more about what the notes know. why do we experience some smells as pleasant and others much less so. lavender what a wonderful scent. the process of smelling itself is very complex after inhaling the said molecules bind to specific sites on all factory receptors there are three hundred fifty different kinds each is specialized for certain smells. the odor information reaches the long term memory and has strong
9:43 am
connections to emotional centers. whether or not we've like a scent mainly depends on the context in which we first smelled it. we first experience many smells when we're very young even while still in the womb or later as an infant. by the way smelling is also important for flavor perceptions ninety percent of them arise not on the tongue but via all factory signals whether or not truffles taste good largely depends on whether we like the aroma. sense awaken memories and can put us in a particular mood that's why the purview ministry is so profitable apart from that how we are raised and social conventions also play a role. takes what for example it smells bad at least that's what we've been
9:44 am
taught that's why some go to great lengths to mask. it. is called what is red white object. to you have a size question that you've always wanted on say it we're happy to help out and send it to us as a video text oh boy smell if we answer it on the show we'll send you a little surprise as a thank you come on just ask. you'll find us online at g.w. dot com slash science and of course on twitter and facebook get in touch. did you know that more organisms live on your skin than they are people on earth does that make your skin crawl it shouldn't we need that epidural ensemble minute might for example they live in our hair follicles their favorite meal. but when this monogamy is out of balance you might find yourself with an edge to scratch.
9:45 am
it makes sense to take good care of your skin because it's far more complex than it looks the average person has almost five million haris all over their body a miniature forest and habited by a host of tiny organisms. among them bacteria viruses found die of months it's a microscopic zoo. and if all its inhabitants are in equilibrium your skin dance just fine. but when they aren't all his life at least in part due to imbalances in his micro biota with help from the latest research he hopes his skin will soon be able to heal itself alone claiming the inflammations i get can hurt quite a lot. more. dermatologist. is
9:46 am
convinced that the distribution of microorganisms on the skin plays a so. and that's how. you carry a range of microorganisms some are good for the skin for instance they can protected by renewing its lip at layer but there are also microorganisms that are harmful that can cause infections or as is the case with a topic dermatitis make them worse usually. so what makes microorganisms trigger a topic dermatitis and research is that a swiss alpine clinic in the town of davos are trying to find out they're carrying out a joint study with environmental medicine specialist claudia title hoffmann from alex berg university in germany. there's a lot going on in the field of a topic dermatitis. the dermatologists take skin swabs she wants to use the samples to measure what's called the skin the micro biome by identifying every species of microbe that lives on the patient's inflamed skin.
9:47 am
our work currently focuses on the micro biome and we've discovered that it's not in equilibrium in patients with a topic demi titus and other chronic skin diseases there were microbes called stuff like caucus oreo's predominates and other species a few are in further between. the outer surface of the human body is a biosphere in its own right around one hundred billion bacteria viruses fungal and mites live on each and every one of us together with microbes that we can find this they make up the micro biome. a baby's first exposure to microbes occurs during birth when it comes into contact with his mother is that flora that's why an individual's microbiome is similar to that of other family members. but similar does not mean identical. micro biome these are unique just like fingerprints.
9:48 am
and throughout our lives the microbiome const. interacts with the environment we pass our microbes along to objects people and animals and received terrorism returned to healthy microbiome researchers believe is stable because it's diverse. cloudier title hoffman is now trying to determine who can handle exact microbial makeup. that's no easy task because there is no way to distinguish between species under a microscope. each bacteria virus or fungus has to be identified genetically through d.n.a. testing. and. it's a laborious process. we all know the gene data looks confusing if you don't know how to read it. you know but ruben hurdles results are clear cut.
9:49 am
me here then what you can see here is that our patient with serious a topic dermatitis has a lot of stuff oreos on his skin this red bar here that's it in fact that saw compare this to results from a healthy subject the picture there is much more colorful a mass how it should be health is closely tied to microbial diversity at. in an attempt to influence the micro biome the dermatologist applies the special cream to a test area she wants to encourage the growth of microorganisms that will help supplant the overly dominant staphylococcus aureus it's an approach that could spark a revolution and allergy therapy when your body how if we can make an improvement here then we'll finally have acquired some tools with which we could help many patients ahead. ruben harrell is hopeful the treatment will work
9:50 am
if it does he might soon have a cream to change his skin micro biome for the better. hopefully the cream will work. but all medications that we wrap into our skin all swallow eventually end up in our and ultimately in a side of us that al water could soon be clear and clean in. a romantic little river in southern germany. clarified water from a nearby sewage treatment plant feeds into it it seems clean but looks can be deceiving that water still contains residues from drugs like painkillers antibiotics and blood pressure medication many rivers in germany now contain heightened concentrations of the pain reliever die cliff and knock even though some sources of drinking water but that's not the only reason why water chemists at the regional environment office are concerned about drug residues. in the shooting
9:51 am
being a stickler for not we can prove with our own studies that even at low concentrations of an act has an effect on organisms in the water trout for instance which causes changes in their gills and in the kidneys and we're also focusing on a former for example birth control pills which in extreme cases they can lead to the feminization of organism. so for preventive reasons we don't want these substances and drinking water because. that's why a team of environmental scientist taking part in a pilot project at a very and sewage treatment plant is now trying to filter drug residues out of waste water it's a real challenge because medicines don't break down easily. i made the comment of corn yes and to be effective medications have to fulfill certain criteria they must be stable but resistant they need to have
9:52 am
a long shelf life and reach certain parts of the body where they're needed so they have to remain stable during and sematic reactions. that stability is also the reason why the body doesn't completely absorbed medications so a proportion of the medications you take are eliminated by urine. up to seventy percent of the die clo fanatic you swallow is excrete again residue from creams and gels is also rinsed away in the shower bath and ends up in the waste water. the bavarian researches have built a reactor that can break down stable drug use in it wastewater is post with ozone the process is already used to kill germs but it also breaks down drug residues into their constituent parts. the samples of waste water that have been treated with ozone illustrate how well it works they're carefully analyzed by van
9:53 am
a rifle noise his colleagues at the regional environment office they conduct tests for example in a comparison untreated samples turn reddish orange samples treated with ozone remain clear. but an overall exhibit when it comes to hormones we're very satisfied after ozone nation there are practically undetectible but with other medications the situation isn't quite as well. we have some good rates of degradation over ninety percent for example with back with a knock on average we're at about eighty five percent but that's not quite good enough since some of these medications like blood pressure drugs are not completely broken down by ozone nation another aspect is that the process of degradation could create problematic transformation products. so those own alone isn't sufficient that's why in an additional treatment step would be very intimidating also testing two different filter systems the first employed salmon bacteria.
9:54 am
the second uses activated carbon granules in early trials it was much more effective that's because the compounds left over after as a nation and here are readily to their uneven surface but this system has a drawback after two years that the latest the activated carbon particles are covered completely they can't absorb any more so the filters have to be swapped out and cleaned which is complicated and expensive. that's why the researchers have high hopes for a new activated carbon process that harnesses nature. as this understand what's special about this granulated activated carbon is that when this carbon is exhausted completely fall a bio film forms on its surface and the microorganisms in this biofilm degrade the residues biologically in other words this activated carbon has an advantage it can
9:55 am
clean itself that of course also brings an economic advantage because we can leave the carbon in the filter for longer and that in turn lowers operating costs significantly. in twenty seventeen global sales of medications it around seven hundred ninety billion dollars that's one hundred fifty billion more than a decade before the race is on to find economical ways to sterilize water. and removed drug residues but these researches have to be patient it can take about a year for a biofilm to form an activated carbon only then will they know whether the process could also work in large treatment plants. massive storms on the sun also have an impact here on earth in particular on the planet's magnetic field researchers have observed the phenomenon for many years but we also know that the magnetic poles are fixed they move around could that cause
9:56 am
a problem for us when it comes to how is a charge more on that and other exciting topics next time on tomorrow today see then.
9:57 am
after. farmland has been called green gold the country has no funding supply. and leases it to international labor for giants the government is after high export revenues and the corporations high profit margin. but not everyone benefits from the booming business or the selling out of the country dead donkeys fear no one knows in fifteen minutes on d w.
9:58 am
earth. home tunes of species. a home worth saving. given those are big changes and most start with small steps global ideas tell stories of creative people and innovative projects around the world. like news that could turn the good news to green energy solutions and reforestation. current interactive content teaching of the next generation doesn't violent took such action. news in all channels available to inspire people to take action and were determined to build something here for the next generation the idea is the environment series of global three thousand on t.w. and online. how do you like to. discover your concept discover with about. a
9:59 am
school a legend after one hundred give us the ideals of the favs are more relevant today than they were that. hundred years ago the janeiro has reshaped things to come to baltimore people are just two designs and refused to sign. the bauhaus a man does crossover with a. ideas that are part of our future. what makes the boss and it's cliche firing to be scary except a part of. the way. this world our documentary starts in january thirteenth on day to all you. play.
10:00 am
to play. this is the interview news live from berlin an eighteen year old saudi woman pleading for help and her life. i have no choice. they said i have to go to model and. no one can help me right now. the teenager is barricaded herself in a hotel room in thailand.


info Stream Only

Uploaded by TV Archive on