confident they were doing the right thing it's proven scientifically proven to improve your immunity it's always good for growing up cards. besides the alleged health benefits what a way to beat those summer beach crowds. jump into one of life's ok that's all we have but we'll be back soon keep up to date on our website d w dot com take care see you soon. small acts who can inspire change the people making a small go africa some time sitting right. join them as they set out to save the environment learn from one another and work together for a better future for. many months to you all for tuning in the cold comfort go. on t w. they want to know what makes

a dentist. and your. time banning going away from. a lot of their family. and everyone was laid a hold on every step getting are you ready to make the difference then join a break just do it until you. phrase it is reality we haven't seen a repeat of that trade chaos on britain's borders with the e.u. yet experts warn the steady flow of traffic could soon turn into a role. pandemic has pulled millions of africans into whole body continue constant wide free trade zone trying to round their fortunes. amongst world's inoculations coated 19 can we expect to finish a told vaccine recovery the financial cost for the folks at the year ahead. because

when they see business britain and the e.u. are officially divorced from today customs checks are in place with the u.k. leaving the bloc single market the busy route between the english port of dover and france is on the front lines of the changes but there was less disruption than many had expected trucks go through without major hassle so both human traffic was lower than usual. ok progress and has been following this story for us kate i heard a lot of companies delayed deliveries to avoid any sort of chaos at all they certainly did they were expecting a far more chaos than we actually saw today then and it's important to know that we recently did see long lines of trucks i don't over because of coronavirus border closures but this of course is a story which affects ports up and down the country the likes of london on grimsby you don't see as much laurie traffic but they're responsible for millions of tons of u.k. imports and exports oil and gas tankers container ships they're all affected by the

new customs rules that britain can't afford to let these ports become a bottleneck shipman's the tween the u.k. and the e.u. a kind for over 40 percent of all british port traffic the u.k.'s ports are major are should raise for british trades without them working efficiently britain's businesses could face shortages or price rises that's why getting port traffic moving is a top post for exit priority it's ok the question is how much longer will things actually run smoothly after talking about breakfast for 4 and a half years today seem to anticlimactic didn't that we were expecting chaos but we didn't get any and as you mentioned there are reasons for this one of them is that companies were prepared it was only last week that they find out that there was going to be a bracks deal at all so what they did was stockpile in advance on to surprising all this chaos on a regular day you'd see $10000.00 trucks between dover and cali today it was less than a 10th of that. and of course the other thing is that the british government only

released its document 300 pages of information about how trade should work in the future a few hours before the rules came into effect that it's not easy to understand i don't think customs officials or companies have time to realize. what about that role the politics plays in business of the 2 always go hand in hand and nowhere is this more apparent than in northern ireland because it of course is part of the united kingdom but it shares alon forder with the republic of ireland which of course staying part of the e.u. to avoid conflict and chaos there under this new arrangement northern ireland is going to follow most of the e.u. has rules on trade so that will mean that they'll have to be customs checks the tween northern arland and the rest of the u.k. so that means that see that's an important psychological shift because those who want to see a united ireland in the future are going to say well this shows that cooperation is closer on the island than on the mainland what about the other relations that the u.k. has with other nations and trading blocks and the

e use relations with all the other nations both sides are very busy looking for new friends at the moment over the past few years britain has agreed about 60 new trade agreements most of them that were covered under its old rules with the e.u. even though in the last couple of days it's a great deals with vietnam and turkey it's been doing a lot of copy and paste it hasn't e.t.a. you probably see people in those types the e.u. has been following its own course as well this week we saw the big investment poc with china signed that's going to make it easier for european companies to do business in china not without its critics of course a lot of people shooting at human rights violations in china so a lot of people not happy about that and it's not all about just good says it it's certainly not so over the next few months it's going to become apparent what's not and this deal it does not cover a service that serves as a kind for 80 percent of the 1st economy and i'm present we don't know whether british banks and insurance companies are going to have easy market access in the e.u. and that could cause a lot more chaos what we're saying that could be just the come before the storm. ok

i shouldn't hold my breath. there it is thanks for coming in interesting stuff well africa's free trade blog is now open for business but it's not all that free there is still disagreement on the scrapping of tariffs as many african nations rely on that revenue agreement could take years. the catch was meager and to make it almost sure had to go far out last night where the fishermen used to fish has been cut off by the military the kenyan government is spending a huge deep sea port off their island in the indian ocean. they want to take this song from. so. people in la move make a living from tourism and fishing but they're victims of a new era in the age of africa's street trade zone is set to become an

international law just 6 center soon the excavate recent dump trucks will be replaced by cranes thousands of shipping containers will pass through a brand new port sylvester kazuko who runs the mammoth project says new rows and train lines will make the area a central transport hub for all of africa we're looking to be becoming a signature infrastructure for the integration of the african continent to realize the africa. at kenya's biggest juice factory they can't wait to reap the benefits of the free trade zone 200 tons of fruit a process here every day they can peel and ophelia are brands every child in kenya knows and the boss commando kendo would like to export to more african countries the problem so far lack of infrastructure and high tariffs but those are history now as of january 1st 90 percent of goods can be sold entirely free of tariffs

looking forward to this. because. there will be uniform. and therefore that's open market the african free trade zone will be the biggest in the world every african country except it it is taking part it creates a domestic market of 1200000000 people. the world bank estimates that free trade could help 30000000 africans escape poverty but it's going to be a long road here at the construction site in la more workers earn just 4 euro or day a pittance and they're working for chinese construction companies china has long recognized how strong the african market will be. it sure has i asked analyst lindo brutal when tariffs will be scrapped because some say it could take years yet there's a lot of conversation about that throughout the you know the pandemic one can

demand secretary-general of the f.c.s. he has been moving around africa is talking to ministers of trade and different groups grab that. you know private enterprises to ensure that there is a way to create revenue too soon to ensure that the time it is and use hopefully would see this in the future but there is a lot of that lot going on to ensure that that happens and until those conversations you know and who she asians comes to completion i will not know exactly when this is going to happen but the the expectation is that terrorists will be reduced and 90 percent of trade between the continents and this is what we are it's. time now for a quick look at some of the other business stories making news tesla has started selling its chinese made model why customers in china can expect to live for years only is this month the world's biggest comet is offering subsidies for electric

vehicles as it seeks to kind of nation's. english football club chelsea made a profit of over $44000000.00 last financial year that's despite the pandemic interrupting play the club and its money from qualifying for the champions league and selling expensive players like belgian winger i didn't bother. americans face high costs for medication the likes of pfizer and glaxo smith kline have already reportedly braced their prices drug makers argue the pandemic means fewer visits to the doctor and fewer prescriptions which means lower profits. and the german vaccine maker by intake has warned the e.u. could experience supply shortages until other $1000.00 jobs are approved at last come under fire for being slow to rise the vines pfizer inoculation and the half as many doses as the u.s. . so what's in store on the global economic front in 2021 our financial correspondent in frankfurt. takes

a look at where the vaccines can drive recovery if they are 2020 was all about the coronavirus and lockdowns this year promises to be about vaccines and a return to normalcy the pharma industry created several vaccines in record time it's about getting those shots into the arms of people all around the world global markets impressive rallies last year despite the pandemic wreaking havoc vaccine breakthrough suggest market participants could ignore the immediate pains and look forward to a swift pandemic recovery the jury is still out on how global stock markets will fare this year some experts say that the markets have already factored in a vaccine ledger coverage. there is still a lot of steam left however days little doubt when it comes to shares in travel and tourism companies airline stocks took a battering last year as a pandemic brought international travel to a virtual halt they could be ready for takeoff once restrictions are lifted and

then there is the biden factor the incoming u.s. president is seen as less combative and more predictable than president trump and that would be a big relief for global markets which are still reeling from trans trade wars and that means global trade is likely to continue its impressive post pandemic recovery last year saw a 9 percent slump but the expects global good street to write 7 percent in 2021 that bodes well for germany's export reliant economy the global recovery has so. well supported by government cash and ultra cheap loans from central banks any premature tightening the could spell doom for markets and the mutating wireless may yet throw in a cobol or 2 but fingers crossed. and a reminder of the top business story we're following for you customs checks have been reintroduced as the u.k. exited the e.u.

single market people goods and services the busy road between the english port of dover and pele is on the front lines of the changes both to have was less disruption and today many had expected to even say that plane. was doing business with. deep insight into the body. chemical process makes it possible to beef up border going to shut. down by south tunnel structure becomes visible. to researchers can understand if even better and make artificial origins in the future tomorrow today. next on d w. month son meets amount of meanspirited dancing. at

a pretty cool musical. half block in the. classical close kingdom river horn player sara willis joins in with gusto. cutting parts $21.00 at a time. 30 minutes from now t.w. . story of producer and propaganda. they were called the rhineland basterds. others were germans living in the occupied growing land their father's soldiers from the french colonies. in

a climate of pride and racism. this documentary examines the few traces that remain of their existence. the true. january 11th d.w. . how do b.s. know which blossom to land on for the best nectar scientists studying flower to insect communication have an electrifying answer. animal testing is very controversial how viable are the alternatives. researchers are using a fresh method to study organ tissue in a new life. well

come to you tomorrow today our. medical professionals have various ways of looking inside the bodies of their patients an x. ray machine passes radiation through the body to capture an image on film. ultra sound on the other hand worked with sound waves. and magnetic resonance imaging or m.r.i. uses magnetic fields but now there's a new method that allows doctors to see right through all of. this mouse can help researchers analyze all kinds of bodily functions from hell blood vessels and nerve tracks run to how internal organs are constructed. it's possible because the mouse's tissue has been made transparent. up to now this hadn't been possible with human tissue. but now chemist john gel from the millions

university in munich has uncovered chemicals that can render a kidney transparent within 2 weeks. she works with genetic engineer. the team wants to understand how human organs work specifically how blood vessels nerve cells and lymph channels interact making them visible is the 1st step. we have to understand how they're coordinating. in normal how to case and dan and we could easily also see when something is wrong when there is lack of coordination if there are some subtle supposed to be there are not there we can nor now developed a microscope that can examine the whole organ the different colors of the laser make the individual structures such as vessels or nerve cells visible. then we got a microscope scan some days of scanning it's millions of imaging data out there is no way hooman being cannot know life instead computer scientists have developed

algorithms which enable an exact 3 dimensional image of the kidney to be generated from the data researchers can then study the organ cell by cell enabling them to recognize pathological changes detect cancer cells and observe the effects of medication to see if the drug in question is actually binding to the right cell the effects of the method could be far reaching my vision is that we will be able to generate organs on demand if someone needs a heart a kid and we will just take some cells maybe skin cells generate millions and billions of cells from and the same person and create construct the organ and then transfer that to the person. first attempts to produce parts of a kidney are already underway but it will take some time before the researchers are able to. produce an entire order. in 2018 german laboratories tested drugs and cosmetics on nearly 1800000 rodents

a she 1000 rabbits and nearly 30000 farm animals supporters of animal testing say the 1000 organs of humans and animals function in a similar way but worldwide 95 percent of drugs test of the excessively on animals fail in human trials good alternatives that don't involve animal suffering actually be more precise. these are miniature artificial organs part of the modular construction system that replicates human body parts. blood lungs and liver high quality and is using them to test new medication. but this system enables us to trigger a paradigm shift in drug development that is an organ a substance organon a chip system of means we're able to determine medication more quickly and cheaply

and where it's needed to the patients within the one percent. in the future this could eliminate the need to conduct so much testing on animals on average the development of a single medication currently takes 15 to 20 years that's largely because animal testing is time consuming costly and controversial and often the results can't be applied directly to humans unlike with the organ on a chip. to create these organs the researchers cultivate skin tissue cells they're then infected with a virus that introduces 4 gene sequences into the skin cells and reprogram some of them these then become i.p.s. or in joost pluri potent stem cells through the addition of growth or differentiation factors they can. be transformed into any kind of cell in the human body from the heart and lungs to skin and liver.

this chip can combine 2 organ models you can see the organ compartments here and here they are connected by a common circulatory system the 2 little chambers here comprise the pump which functions like the human heart does mention here and this lets the organs communicate with one another and exchange neurotransmitters and wit and observe this interactions or god of. their researches don't reproduce the entire organ only the parts of cells which should or could respond to a certain drug. liver cells for example a cultivated unused in an organ storage container at $37.00 degrees celsius mirroring the temperature of the human body they left to grow and develop in lifelike conditions under the microscope the researches can see them function just like in the human body.

and unlike with animals or people we can look inside the chips at any time with a microscope and see what the liver does with the medication does it tolerate the drug or is there damage mechanically on sean and then i can also see on the other organ here in the heart liver or pancreas or that these products have an effect whether they can be helpful in healing illness or maybe produce side effect that's off in the industry because. the major advantage is that the substances can be tested directly on human cells so in contrast to animal testing the research is can gather reliable evidence about the effects on people. that's because tests on rats and mice can only predict. whether substances are toxic to humans just 43 percent of the time so most medications that were tested successfully on animals

fail when drug studies are then conducted on humans up to 95 percent of all drugs trial. these 2 neuroscientists have developed another alternative to animal testing they can simulate on the computer how a medication or substance affects the conduction of stimuli in the brain. never until the nerve cells in the brain structures that we study are also affected by alzheimer's disease and epilepsy which is why it's important to better understand the mechanisms of such diseases in these regions of the brain and computer models are quite helpful in this case the cells of fly la vie formed the basis of their work biologist how men could 6 am and the structure very closely well peter your glitched are focused on the electrical characteristics then they compared them with the cells of other animals here. and here we have

a worm cell that's a couple hundreds of a millimeter in length all the way to motor neurons to motor and i want to be one or 2 for millimeter lungs and one of us and what was really unexpected was that although the cells are extremely difference in size and in terms of complexity and shape they all behave the same way complexity to the aunt or informant for heightened kleis the cells they analyze come from animal tests conducted and published by other scientists. for you even from using for each of these little dots here i'd have hunter do animal tests and that would have been impossible because we have $6000.00 cells here. instead with the help of this data. the scientists have been able to create a computer simulation of the brain with all its nav cells and neural pathways.

computers either computer delivers a nice reproduction of all the details. about the cells are so well replicated expect experts can no longer tell the difference between the real cells and the artificial wonders. i'm. as a result the opportunities for testing a virtually endless. con man on the computer you can run through all kinds of combinations which you could never do in an experiment. to research as a noun developing computer models the human cells as well in future that could eliminate not only the need for animal testing but clinical studies on people to. play back in berlin research as can already replicate 11 organs on a scale of $1.00 to $100.00 thousands now they're testing how they can be networked and that supply systems fully automated using a prototype. muscles which. can do everything that happens during

studies. the foot on the chips you can take samples from these chips and administer the medication. so i can tell it to apply the drug via the skin or administer it as a tablet via the bloodstream through the intestinal barrier. and we can also try to inhale it all the different means of application you're familiar with from the pharmacy and from sprays through to shots and creams can be simulated here so my claim. the research is estimate this system will be ready for use in one to 2 years. it won't be possible to completely replace testing on humans and animals in full see. future due to factors such as pain and emotion simulation but the chances are good that it could replace up to 60 percent of all

animal testing. if outlet is red white auburn platen even if you. do you have a science question you'd like us to answer send it to us in a video text or voice mail if we answer it on the show we'll send you a little surprise after going to you come on just south. you can also check it out online dot com slash science or on twitter ask d. w. underscores viands. boubacar dan from gamma asks just how closely related are we humans and chimpanzees. very closely some 98.5 percent of our d.n.a. base pairs are identical based on average findings from a range of analytical methods. and our genetic match with gorillas

is just one quarter of a percentage point less than that. around the terms branched off from our common family tree earth but they still share 1007 percent of their d.n.a. with us so how do we explain the huge difference between humans and apes. some primates can scale trees in the rain forests. while another species exploits other planets. the human genome contains some 3000000000 base pairs of which just 40000000 differ from those of chimpanzees but this vital difference means that certain proteins in apes have other structures and possibly other functions in the body. but for all the differences there are also many similarities. using tools to eat food with for example. chimpanzees used twigs to pry

delicious ants from their nests. and chimps are emotional creatures researches have even found similarities in the sound of their laughter and ours. they understand symbols and can learn for example which one beats the other in a game of rock paper scissors. but chimpanzees will probably never be able to build computers although then again neither can most of us the famous primatologist jane goodall urges us to use our supposedly superior intelligence to start protecting the habitats about primate cousins on the planet as a whole. incidentally a thing that humans share more than 98 percent of their d.n.a. with gorillas and chimpanzees might sound like a loss but when you consider that the human genome is made up of billions of d.n.a.

base pairs the 2 percent difference still accounts for a lot of variation in. another example humans and pates share 90 percent of the same genes. are most popular 4 legged friend shares 84 percent of our d.n.a. . and even the brand worm has effect on t. 5 percent similarity. stranger still 50 percent of human genes also have counterparts in ben on. both bon appetit. how long did the terminator arnold schwarzenegger work on this legendary seem to get it just right even then he couldn't get rid of his austrian accent

a new study has revealed just how difficult that would be. the boy forgot his book. the train is moving fast. a phonetics researcher at the new tweet marks 1000000 university in munich he felt fine ish and her colleagues had 24 native german speakers read out simple english sentences. our hypothesis was that one of the reasons it's so difficult to improve our accent in foreign languages is that we can't hear our own false pronunciation as well as we hear it in others and that's what we're trying to test by asking subjects to read sentences and then write their own accent as well as the accents of others i sure can. but before they play the voices back to their test subjects the researchers manipulated the voices so that it sounded as if men were speaking. back and

that was important to us we wanted to see how people judge themselves without knowing that they're listening to themselves. for example this recording. the boy forgot his book became this one. book each test subject evaluated 4 of the male voices one of which was their own and the evaluation confirms the hypothesis as the result was that the test subjects did in fact evaluate their own pronunciation better than the others even though they weren't aware they were the ones speaking. why is this and what are the consequences. first of all or most familiar with our own pronunciation. so that's the one we understand the best and the accent we understand the best usually sounds better to us on had another that's the mere exposure effect which means that the speech we

recognize well and that we've gotten used to is the speech we find better that's an interesting one of the conclusions that we've reached is that it might be difficult when preview pronunciation if you evaluate your own accent is already good enough. then you can see how you can know why you should improve it and. maybe these findings will help language students in future. here's a fun fact when dinosaurs roamed the earth there were no flowering plants just ferns and conifer. flowering plants came around 16000000 years later the 1st flower is thought to up looks rather like a water lily today we have flowers in every shape and color many of them you send to compete for the attention of insects but they also use another method electrical signals. are drawn to

flowers quite literally there's an electrifying sense of attraction between insects and flowers when a bee approaches a blossom the latter's pollen jumps across and attaches itself to the fine line and the bees exterior. professor danielle from the university of bristol knows all about this magical connection between plants and their pollinators if you sit by from bed and you look at bumble bees you realise pretty soon mending randomly on the flowers they don't visit the flowers. immediately after somebody else has been there they tend to go to the flowers that have not been visited for a little while that's because these flowers will have generated nectar in the meantime to keep working at producing nectar and i suspect the bees no matter. over

millions of years plants and their insect admirers have to develop a win win relationship beasts receive nectar and pollen in exchange for pollinating the flowers. from ours can not afford to disappoint b.c. this is the the key the key thing here is that it will be arrives they invest only energy and stake so do the search flowers all have a means of saying i've. left 2 of monica calif they cannot change color they cannot change some very quickly they cannot change the shape very quickly you cannot change the u.v. reflections which we know is also important but what can the chance so in the course of research we sort of figured out at some point that one thing that can change very quickly is the electric potential of flowers. flowers and insects electrical signals to let them know whether their blossoms are full of nectar or empty. to prove this hypothesis done year old their 1st turned

his attention to the flowers. we have measured the fact that flowers are negatively charged they are grounded to the to the ground to the floor to the soil which is rich in electrons and these negative challenge even if songs if you won't form the soil will move into the flower so the flowers tend to be negative bees tend to lose electrons when they fly this is one of their properties as if rice through the year they are rather against the air and they will shed electro and therefore they will be positively charged. in the lab done the old bear was able to prove that bumble bees can sense of electrostatic fields with the help of his institution's own b. colonies. insects tested already reacted to tiny amounts of negative charge at

feeding stations researchers had set up to simulate flowers reaching nectar to talk to them once and. the sensory biologists can even listen in to the communication between flower and b. it's. a very. they connect a flower to an extremely sensitive measuring device the loudspeaker then translates the electrical charge into sound. so you can kind of consider a magic wand i guess. it's just simply a plastic world and you know when you rub your head with a balloon and you get all this electric charge building up and. that's essentially what we do with this so you can rub it on your hat and you get a lot of electric charge building up and this is a charge that would be similar to the charge that you get on a bumblebee that's flying around so we can use this is a nice sort of mimic for bumblebee flying around the. depending on the distance of

the wand the sound becomes louder or softer. the devices have now been checked now it's the bumblebees turn. the experiment shows that as soon as it touches down the charge between the b. and the flower is equalized. so any bees flying by afterwards know that this flower has already been visited and has nothing to offer only after a time with the flower produce more nectar and regain its negative charge this is what we are after what we want to find out is how did these electric fields get created between themselves and the flower so in order to do that we need to immobilize that be put it on this it will platform and there and too little why use only each side of its head to apply a tiny voltage between. the experiment takes place in an enclosed environment

in a lab that's impervious to external vibrations with the help of a laser beam daniel bell can't even measure nano scale movements. he suspects that the beans hairs and antennae can react to these differences in voltage. diversions we can see here on this is a graphic representation of the data we got but it's exaggerated in amplitude so that we can see with our eyes in reality it isn't and the little hairs that we've seen before are actually vibrating a fraction of their own so this is not motions that we can see but certainly motions of the insects can perceive scientists have still been unable to locate the sensory organs that allow the bees to perceive these tiny movements but one thing is clear the seemingly magical attraction between bees and blossoms already know all i think this is a big gain for us to try to understand that new dimension which is hidden from us

we don't detect these fields. but that hidden dimension that may exist between flowers and they're put in it is but it could also well be. was that all the plants and all the insects also use a little reception in in different ways so this is for us to explore now and to try to see how much more generalized perhaps this process of detecting electric fields is in the small world of insects and clones. for being used these electrostatic fields are a vital navigation tool. they provide them straight to flowers where they can tank up on nectar ensuring a most fruitful journey. and that's all from tomorrow today thanks for watching i'm do join us again next week for more fascinating stories from the world of science and research until then it's goodbye and take care.

most. meanspirited does seem. pretty cool musical. blah blah blah blah for. classical close to the horn player sarah willis joins with gusto. up the $20.00. coming up on. 32. 1. exploding cakes are just some of christiane s 3 boss creation. explode back to. this banner

shelf could stop extravagant love and bake masterpieces that are not only delicious their unique common area experiences. bloom. on d. w. . a duel with words. where i come from we don't want to weigh from a call from taisha. when i was 5 years old my father took me to his friends and i was told on the spot. a sport that you loved soul enters your soul. fencing as a language a good source for it is a conversation. must leap your opponent understand the

thinking middle of the men to get close otherwise you can score a. it's not unlike a tough interview really when interviewing politicians or corporate c.e.o.'s you have to wait for the right moment just to get around that defensiveness then make your move down fear. yes it's a risk to get results. i've got alphas and i work at d w. frank food. international gateway to the best connection self in road and rail. located in the heart of europe. if you are connected to the whole world. experience outstanding shopping and dining office and try our services. be allat gassed at

frankfurt airport city managed by from. this is d.w. news and these are our top stories the u.s. senate has voted to override president donald trump's veto of a major defense bill the vote passed by more than the required 2 thirds majority and follows a similar bipartisan motion in the house of representatives it's the 1st time congress has over.