TED Talks - آموزش زبان

🟢What makes muscles grow? Muscles. We have over 600 of them. They make up between 1/3 and 1/2 of our body weight, and along with connective tissue, they bind us together, hold us up, and help us move. And whether or not body building is your hobby, muscles need your constant attention because the way you treat them on a daily basis determines whether they will wither or grow. Say you're standing in front of a door, ready to pull it open. Your brain and muscles are perfectly poised to help you achieve this goal. First, your brain sends a signal to motor neurons inside your arm. When they receive this message, they fire, causing muscles to contract and relax, which pull on the bones in your arm and generate the needed movement. The bigger the challenge becomes, the bigger the brain's signal grows, and the more motor units it rallies to help you achieve your task. But what if the door is made of solid iron? At this point, your arm muscles alone won't be able to generate enough tension to pull it open, so your brain appeals to other muscles for help. You plant your feet, tighten your belly, and tense your back, generating enough force to yank it open. Your nervous system has just leveraged the resources you already have, other muscles, to meet the demand. While all this is happening, your muscle fibers undergo another kind of cellular change. As you expose them to stress, they experience microscopic damage, which, in this context, is a good thing. In response, the injured cells release inflammatory molecules called cytokines that activate the immune system to repair the injury. This is when the muscle-building magic happens. The greater the damage to the muscle tissue, the more your body will need to repair itself. The resulting cycle of damage and repair eventually makes muscles bigger and stronger as they adapt to progressively greater demands. Since our bodies have already adapted to most everyday activities, those generally don't produce enough stress to stimulate new muscle growth. So, to build new muscle, a process called hypertrophy, our cells need to be exposed to higher workloads than they are used to. In fact, if you don't continuously expose your muscles to some resistance, they will shrink, a process known as muscular atrophy. In contrast, exposing the muscle to a high-degree of tension, especially while the muscle is lengthening, also called an eccentric contraction, generates effective conditions for new growth. However, muscles rely on more than just activity to grow. Without proper nutrition, hormones, and rest, your body would never be able to repair damaged muscle fibers. Protein in our diet preserves muscle mass by providing the building blocks for new tissue in the form of amino acids. Adequate protein intake, along with naturally occurring hormones, like insulin-like growth factor and testosterone, help shift the body into a state where tissue is repaired and grown. This vital repair process mainly occurs when we're resting, especially at night while sleeping. Gender and age affect this repair mechanism, which is why young men with more testosterone have a leg up in the muscle building game. Genetic factors also play a role in one's ability to grow muscle. Some people have more robust immune reactions to muscle damage, and are better able to repair and replace damaged muscle fibers, increasing their muscle-building potential. The body responds to the demands you place on it. If you tear your muscles up, eat right, rest and repeat, you'll create the conditions to make your muscles as big and strong as possible. It is with muscles as it is with life: Meaningful growth requires challenge and stress. #Health #Public_Health #Human_Body #Health_care #TED_Ed #Animation #Biology #Physiology #Exercise #Science #Food 🎙Join ➣ @TEDTalksLearning ☜ 🎙Join ➣ @TEDTalksLearning ☜ 🤖اموزش رایگان زبان از طریق بات تلگرام

🟢What makes muscles grow? #Health #Public_Health #Human_Body #Health_Care #TED_Ed #Animation #Biology #Physiology #Exercise #Science #Food 🎙Join ➣ @TEDTalksLearning ☜ 🎙Join ➣ @TEDTalksLearning ☜ 🤖اموزش رایگان زبان از طریق بات تلگرام

And here's another example. Did you know that corn flakes and a lot of other cereals have added vitamins and minerals? That's called food fortification, when you add critical nutrients to staple foods we eat every day. That's particularly important when people do not have access to a healthy diet or maybe they cannot afford it. This is where social business called Sanku comes in. Sanku has developed an internet-enabled machine that fortifies maize flour at small mills in Africa. Now they have a market-based model that helps provide fortified, nutritious flour to their clients of the small mills at no additional cost. Right now it's reaching up to three million people and scaling further. So, does it work? Can accelerated innovation and technology help us tackle some of the world's biggest challenges? When we first started the World Food Programme Innovation Accelerator, it seemed like a crazy idea that innovation and technology can help us make a meaningful impact on global hunger. But since starting in 2015, we've consistently doubled the number of people reached every year through the innovations that we've supported. In 2021, we've positively impacted the lives of 8.6 million people already. And now we even run accelerator programs for other global problems like primary health care, vaccine delivery or gender equality. Imagine what the impact could be if you take action today as an individual, as a company, or maybe as a start-up founder. Innovation and technology can enable so much good in the world, and together we can solve the world's biggest challenges. Thank you. #Global_Issues #Technology #Business #Innovation #Humanity 🎙Join ➣ @TEDTalksLearning ☜ 🎙Join ➣ @TEDTalksLearning ☜ 🤖اموزش رایگان زبان از طریق بات تلگرام

🟢How innovation and technology can fight global hunger? When you think about innovation and technology, you're most likely thinking about the latest app on your smartphone, or maybe you think about rockets going into space. But what about some of the world's biggest challenges, like global hunger or climate change? They can seem overwhelming or, you know, maybe you just think there should be a nonprofit organization that takes care of that. But why is it that we think so traditionally about some of the world's biggest challenges? I believe innovation and technology can help tackle some of the world's biggest challenges. The barrier is our own thinking. And there's something about this where big global challenges are no different than big global business challenges. So let's change that. Let's talk about one of those topics, global hunger. Hunger may seem like a remote problem for you, but the effects of it are pretty drastic. Hunger means you do not have enough calories on a daily basis to live a healthy life. And there is up to 811 million people on the planet who are hungry. So what can we do about it? I think innovation and technology is the answer. A couple of years ago, a friend and I realized that United Nations World Food Programme can feed a child for a full day for only 80 cents. We were shocked. We thought, if more people knew about this, if we made it easy, imagine you were having dinner with your friends and you're enjoying yourselves, wouldn't you want to share your meal with a child in need? And that's exactly why we founded an app called Share the Meal. It's so simple. With one tap on your smartphone, you can share your meal with a child in need for only 80 cents. And I'm excited to tell you it's working. Over 130 million meals have been shared so far by six million app users across the globe. And Share the Meal was even an app of the year in 2020 by both Apple and Google. When we started Share the Meal, we had to push really hard to make it a reality. There just weren't so many support mechanisms out there to support social entrepreneurs, when you compare it, for instance, with the number of start-up accelerators for for-profit ventures. Coming from that inspiration, I got the opportunity to start the World Food Programme’s Innovation Accelerator, exactly with the goal of replicating what Silicon Valley does well, but for global social impact. It's a start-up accelerator that supports start-ups and nonprofit innovations globally and helps them scale to disrupt global hunger. So let's look at two of those examples. The first one is about blockchain. Now, when you think about blockchain, you may think about Bitcoin or cryptocurrencies, but that's not how we think of it. We use blockchain technology so that refugees can go into stores and purchase food. It's an innovation called Building Blocks. And why blockchain? Blockchain helps because it's not my blockchain or your blockchain, it's the neutral blockchain network. And that way it makes collaboration among aid organizations much easier. And how does it work? Every month, aid organizations transfer money to individual blockchain accounts, and then that individual can go into a store, shop for the groceries and at the checkout they pay with the iris scan or with another authentication method. That innovation had first been submitted to us by a World Food Programme finance officer who participated in our innovation boot camp. He then developed a prototype and tested it only two months after starting, in Pakistan with about 100 people, and the next pilot was already with 10,000 refugees in Jordan. And that was so successful, that that solution scaled to over 100,000 people within seven months. And right now, Building Blocks is reaching about one million people, transferring over 300 million dollars of cash to people in urgent need of food.

🟢How innovation and technology can fight global hunger? #Global_Issues #Technology #Business #Innovation #Humanity 🎙Join ➣ @TEDTalksLearning ☜ 🎙Join ➣ @TEDTalksLearning ☜ 🤖اموزش رایگان زبان از طریق بات تلگرام

🔥دوستانی که قصد اپلای دارن و مدارکشون کامل هست در حال حاضر ۷ تا رشته خیلی خوب در دانشگاه LUT فنلاند ظرفیت داره و فرصت محدود هست. لینک هایلایت و توضیحاتش رو میذارم حتما سر بزنین و استفاده کنین👇👇 https://www.instagram.com/s/aGlnaGxpZ2h0OjE3ODk3MTgzOTg4MDU1ODIz?story_media_id=3572327250729863603_58358555496&igsh=bGY2eTNzaGMzamc3

لینک وبینار تحصیلی اموزشی دو دانشگاه فنلاندی LUT و LAB که جمعه ۲۶ بهمن به میزبانی مجموعه Apply Finland بعنوان نماینده رسمی این دو دانشگاه و همچنین با حضور مسئول دانشجویی دانشگاه برگزار شد خدمت شما تقدیم میشود. در این وبینار مباحث تخفیف‌های شهریه، معیارهای پذیرش و خوابگاه‌ها نیز بررسی شد. در پایان نیز بخش پرسش و پاسخ جذاب برگزار شد و به سوالات مخاطبان پاسخ داده شد که سوالات مطرح شده در این بخش میتونه سوالات شما هم باشه.🇫🇮🎓 💻امکان مشاهده ویدیو وبینار با زیرنویس به هر دو زبان انگلیسی/فارسی فراهم گردیده است. (برای مشاهده با زیرنویس فارسی در قسمت تنظیمات captions را روی Persian قرار دهید و CC رو از روی صفحه نمایش انتخاب کنید). 👇👇 https://youtu.be/IVKRLE_0-qQ?si=zt1o9WzHhxmkhYEM

You might even offer to help with specific tasks, like looking up therapists in the area, or making a list of questions to ask a doctor. To someone with depression, these first steps can seem insurmountable. If they feel guilty or ashamed, point out that depression is a medical condition, just like asthma or diabetes. It's not a weakness or a personality trait, and they shouldn't expect themselves to just get over it anymore than they could will themselves to get over a broken arm. If you haven't experienced depression yourself, avoid comparing it to times you've felt down. Comparing what they're experiencing to normal, temporary feelings of sadness can make them feel guilty for struggling. Even just talking about depression openly can help. For example, research shows that asking someone about suicidal thoughts actually reduces their suicide risk. Open conversations about mental illness help erode stigma and make it easier for people to ask for help. And the more patients seek treatment, the more scientists will learn about depression, and the better the treatments will get. #Health #Psychology #Brain #Biology #Science #Mental_Health 🎙Join ➣ @TEDTalksLearning ☜ 🎙Join ➣ @TEDTalksLearning ☜ 🤖اموزش رایگان زبان از طریق بات تلگرام

🟢What is depression? Depression is the leading cause of disability in the world. In the United States, close to 10% of adults struggle with depression. But because it's a mental illness, it can be a lot harder to understand than, say, high cholesterol. One major source of confusion is the difference between having depression and just feeling depressed. Almost everyone feels down from time to time. Getting a bad grade, losing a job, having an argument, even a rainy day can bring on feelings of sadness. Sometimes there's no trigger at all. It just pops up out of the blue. Then circumstances change, and those sad feelings disappear. Clinical depression is different. It's a medical disorder, and it won't go away just because you want it to. It lingers for at least two consecutive weeks, and significantly interferes with one's ability to work, play, or love. Depression can have a lot of different symptoms: a low mood, loss of interest in things you'd normally enjoy, changes in appetite, feeling worthless or excessively guilty, sleeping either too much or too little, poor concentration, restlessness or slowness, loss of energy, or recurrent thoughts of suicide. If you have at least five of those symptoms, according to psychiatric guidelines, you qualify for a diagnosis of depression. And it's not just behavioral symptoms. Depression has physical manifestations inside the brain. First of all, there are changes that could be seen with the naked eye and X-ray vision. These include smaller frontal lobes and hippocampal volumes. On a more microscale, depression is associated with a few things: the abnormal transmission or depletion of certain neurotransmitters, especially serotonin, norepinephrine, and dopamine, blunted circadian rhythms, or specific changes in the REM and slow-wave parts of your sleep cycle, and hormone abnormalities, such as high cortisol and deregulation of thyroid hormones. But neuroscientists still don't have a complete picture of what causes depression. It seems to have to do with a complex interaction between genes and environment, but we don't have a diagnostic tool that can accurately predict where or when it will show up. And because depression symptoms are intangible, it's hard to know who might look fine but is actually struggling. According to the National Institute of Mental Health, it takes the average person suffering with a mental illness over ten years to ask for help. But there are very effective treatments. Medications and therapy complement each other to boost brain chemicals. In extreme cases, electroconvulsive therapy, which is like a controlled seizure in the patient's brain, is also very helpful. Other promising treatments, like transcranial magnetic stimulation, are being investigated, too. So, if you know someone struggling with depression, encourage them, gently, to seek out some of these options.

🟢What is depression? #Health #Psychology #Brain #Biology #Science #Mental_Health 🎙Join ➣ @TEDTalksLearning ☜ 🎙Join ➣ @TEDTalksLearning ☜ 🤖اموزش رایگان زبان از طریق بات تلگرام

وبینار مشترک مجموعه Apply Finland با دو دانشگاه LUT و LAB فنلاند در تاریخ جمعه ۲۶ بهمن ساعت ۱۲:۳۰ به وقت ایران خدمت شما. 🌸🇫🇮 دسترسی برای همه ازاد هست و این پیام که شامل لینک و ایدی و پسورد می باشد رو برای دیگران هم میتونین ارسال کنید. 🤝 وبینار شامل اطلاعاتی در خصوص کشور فنلاند و دو دانشگاه مذکور و امکانات اونهاخ هست. برای دوستانی هم که برای دانشگاه هایی غیر از این دو دانشگاه قصد تحصیل دارند هم این وبینار میتونه مفید باشه. شروع از ساعت ۱۲:۳۰ هست اما شما دیرتر هم اگر وارد وبینار بشید مشکلی نیست.🎓 📱وبینار بر بستر پلتفرم Zoom هست که هم قابل نصب بر روی موبایل ها هست و هم تبلت و کامپیوتر. حتی بدون نصب نرم افزار هم توسط browser میشود ورود کرد. 📱لینک ورود به وبینار: https://lut.zoom.us/j/67954072349?pwd=WjNEoELSfPSIwbs7EiYERtw6C8hhAP.1 ایدی میتینگ (در صورت نیاز): 679 5407 2349 کد ورود (در صورت نیاز): 152785

🔥آموزش رایگان و آسان زبان انگلیسی کلیه مقاطع از طریق بات تلگرامی عضویت و استارت بات👇👇 @BestieltsApplyBOT 👈عضویت در یوتیوب 👈عضویت در اینستاگرام 👈عضویت در تلگرام

🟢What does the world's largest machine do? On February 7th, 1967, Homer Loutzenheuser flipped a switch in Nebraska and realized a dream more than five decades in the making. The power grids of the United States joined together, forming one interconnected machine stretching coast to coast. Today, the US power grid is the world's largest machine. It contains more than 7,300 electricity-generating plants, linked by some 11 million kilometers of powerlines, transformers and substations. Power grids span Earth’s continents, transmitting electricity around the clock. They’re massive feats of engineering— but their functioning depends on a delicate balance. Their components must always work in unison, maintain a constant frequency throughout the grid, and match energy supply with demand. If there's too much electricity in the system, you get unsafe power spikes that can overheat and damage equipment. Too little electricity and you get blackouts. So, to strike this balance, power grid operators monitor the grid from sophisticated control centers. They forecast energy demand and adjust which power plants are active, signaling them to turn their output up or down to precisely meet current demand. By considering factors like the availability and cost of energy resources, grid operators create a “dispatch curve,” which maps out the order in which energy sources will be used. The grid defaults to using energy from the start of the curve first. Usually, the resources are ordered by price. Those at the start tend to be renewables because they have much lower production costs. Some grids, like those in Iceland and Costa Rica, run on more than 98% clean energy. But most dispatch curves contain more of a mix of carbon-free and carbon-emitting energy sources. This means that where your electricity is coming from— and how clean it is— varies throughout the day— as often as every few minutes. Take the state of Kansas. Despite having plentiful wind resources, it regularly relies on carbon-emitting power plants. This is because wind energy is especially plentiful at night. But, this is also when there’s lower demand. So, Kansas’ is wind energy is actually regularly disposed of to prevent excess electricity from damaging the grid. And comparable scenarios add up to a big problem worldwide. Thankfully, dependence on renewables is rising. But power grids are often unable to make full use of them. Many simply weren't designed around intermittent energy sources and can't store large amounts of electricity. Researchers are experimenting with unique storage solutions. However, this will take time and substantial investment. But hope is not lost. We have the opportunity to work with our existing power grids in a new way: by shifting some of our energy use to the times when there’s clean electricity to spare. Leaning into this concept, called “load flexibility,” we can help flatten the peaks in demand, which will place less stress on the grid and reduce the need for non-renewables. So researchers are developing automated emissions reduction technologies that tap into energy use data and ensure that devices get electricity from the grid at the cleanest times. In fact, smart devices like this already exist. So, how big an effect could they have? If smart technologies like air conditioners, water heaters, and electric vehicle chargers were implemented across the Texas power grid, the state’s emissions could decrease by around 20%. In other words, simply coordinating when certain devices tap into the grid could translate to 6 million fewer tons of carbon released into the atmosphere annually from Texas alone. Now, imagine what this could look like on a global scale. #Education #Energy #TED_Ed #Natural_Resources #Animation #Electricity #Renewable_Energy 🎙Join ➣ @TEDTalksLearning ☜ 🎙Join ➣ @TEDTalksLearning ☜ 🤖اموزش رایگان زبان از طریق بات تلگرام

🟢What does the world's largest machine do? #Education #Energy #TED_Ed #Natural_Resources #Animation #Electricity #Renewable_Energy 🎙Join ➣ @TEDTalksLearning ☜ 🎙Join ➣ @TEDTalksLearning ☜ 🤖اموزش رایگان زبان از طریق بات تلگرام

So, what’s the smartest age? There’s no single answer. It’s 8, 16, 25, 65, and everything in between; our brains have adapted to prioritize different skills at various ages to meet that stage of life’s challenges and demands. So no matter who Amir picks, having an age-diverse team is a good strategy. #Memory #Education #Aging #Brain #TED_Ed #Animation 🎙Join ➣ @TEDTalksLearning ☜ 🎙Join ➣ @TEDTalksLearning ☜ 🤖اموزش رایگان زبان از طریق بات تلگرام

🟢What's the smartest age? What is the smartest age? Perhaps a day of friendly competition will lead us to the answer. Tomorrow’s the annual Brain Clash— ten teams of two competing in a decathlon of mental challenges, trivia competitions, and puzzles. I’ve been training all year. I’ll need to pick the smartest, most capable teammate. I’ve narrowed down the roster. First we have Gabriela. She may only be 8, but don’t underestimate her! She’s fluent in two languages and is the ultimate outside-the-box thinker. Then there’s Ama. She can recite 100 digits of pi, designs satellites for a living, and bakes a perfect soufflé. Or I could go with Mr. Taylor. He’s the best chess player in the neighborhood, not to mention he’s competed in over 20 Brain Clashes and is a five-time champion! I’m not sure who to pick! Who’s the smartest? Which of these teammates should Amir choose for tomorrow's contest and why? Of course, it depends. While intelligence is often associated with things like IQ tests, these assessments fail to capture the scope and depth of a person’s varied abilities. So instead, we’ll break down the idea of “smart” into categories like creativity, memory, and learning and explore when the brain’s best at each of them. Let's start at the very beginning. In the first few years of life, your brain undergoes incredible rapid growth, called synaptogenesis, where more than 1 million new neural connections are formed every second. As the brain develops, it goes through a pruning process. Based on your experience and environment, used connections are strengthened and unused connections are removed. Frequently used neuronal pathways are myelinated, wrapped in a layer of insulation, allowing information to travel faster. This creates a more efficient, fine-tuned brain. But this brain remodeling happens within and between brain regions at different times, allowing different skills to flourish at different ages. For example, in childhood, brain regions involved in language learning develop quickly, which is why many children can learn and master multiple languages. Yet the prefrontal cortex, a brain region responsible for cognitive control and inhibition, is slower to develop. As a result, some young children may struggle with strategic games, such as chess or checkers, which require constant concentration, planning, and abstract thought. At the same time, children tend to be more flexible, exploration-based learners. They often use more creative approaches when finding solutions to riddles and are, on average, less afraid to make mistakes. But adults have their own unique set of abilities. Adults benefit from a well-developed prefrontal cortex, allowing them to better execute skills that require learning, focus, and memory, making them quick and efficient puzzle solvers or crossword masters. Late in adulthood, these same skills may decline as the brain’s memory center, known as the hippocampus, shrinks. But there’s a reason for the phrase “older and wiser.” After a lifetime of learning, older adults have more knowledge to recall and utilize, making them excellent trivia partners. Other factors that Amir should consider are his own strengths. As an adolescent, the prefrontal cortical regions of your brain are more developed than in childhood. This allows you to better navigate logic and math puzzles. Simultaneously, deep inside the brain, regions that are important in motivation and reward are developing even faster, driving teenagers like Amir to be curious and adventurous learners. In many ways, you can think of the teenager as a jack-of-all-trades, with brains wired to seek out new experiences and learn quickly. You’re at a dynamic stage, where the choices you make and the skills you focus on can actually guide the development of your brain.

🟢What's the smartest age? #Memory #Education #Aging #Brain #TED_Ed #Animation 🎙Join ➣ @TEDTalksLearning ☜ 🎙Join ➣ @TEDTalksLearning ☜ 🤖اموزش رایگان زبان از طریق بات تلگرام

دوستانی که برای پذیرش تحصیلی فنلاند یک یا هر دو دانشگاه LAB / LUT مقاطع لیسانس، ارشد و یا ارشد مجدد خودشون اقدام کردن و یا در حال تکمیل مراحل پذیرش هستند (با داشتن مدرک زبان انگلیسی) به ایدی تلگرام زیر پیام دهید: https://t.me/Apply_Finland_Admin2

دوستانی که برای پذیرش تحصیلی فنلاند یک یا هر دو دانشگاه LAB / LUT مقاطع لیسانس، ارشد و یا ارشد مجدد خودشون اقدام کردن و یا در حال تکمیل مراحل پذیرش هستند (با داشتن مدرک زبان انگلیسی) به ایدی تلگرام زیر پیام دهید: https://t.me/Apply_Finland_Admin2