La Organización Mundial de la Salud advierte que muchos están aprovechando el miedo del coronavirus para esparcir informaciones erróneas e incluso lucrar con productos contra la epidemia.

"Happy New Year" by ABBA reworked to Minor key.
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The South American palm weevil is bursting onto the scene in California. Its arrival could put one of the state’s most cherished botanical icons at risk of oblivion.

DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific mysteries by going incredibly small.

* NEW VIDEOS EVERY OTHER TUESDAY! *

Summer means vacation time, and nothing says, “Welcome to paradise!” quite like a palm tree. Though it’s home to only one native species, California has nonetheless adopted the palm as a quintessential icon.

But a new snake in California’s palm tree-lined garden may soon put all that to the test. Dozens of palms in San Diego’s Sweetwater Summit Regional Park, about 10 miles from the Mexican border, are looking more like sad, upside-down umbrellas than the usual bursts of botanical joy.

The offender is the South American palm weevil, a recent arrival to the U.S. that’s long been widespread in the tropics. Large, black, shiny, and possessed of an impressive proboscis (nose), the weevil prefers the king of palms, the Canary Island date palm, also known as the “pineapple palm” for the distinctive way it’s typically pruned.

A palm tree is basically a gigantic cake-pop, an enormous ball of veggie goodness on a stick. The adult female palm weevil uses her long snout to drill tunnels into that goodness—known to science as the “apical meristem” and to your grocer as the “heart” of the palm—where she lays her eggs.

When her larvae hatch, their food is all around them. And they start to eat.

If the South American palm weevil consolidates its foothold in California, then the worst might still be to come. While these weevils generally stick to the Canary Island palms, they can harbor a parasitic worm that causes red-ring disease—a fatal infection that can strike almost any palm, including the state’s precious native, the California fan.

--- Where do South American Palm Weevils come from?

Originally, Brazil and Argentina. They’ve become common wherever there are Canary Island Palm trees, however, which includes Europe, the Mediterranean, the Middle East.

--- How do they kill palm trees?

Their larvae eat the apical meristem, which is the sweet part of the plant sometimes harvested and sold commercially as the “heart of palm.”

--- How do you get rid of them?

If the palm weevils infest a tree, it’s very hard to save it, since they live on the inside, where they escape both detection and pesticides. Neighboring palm trees can be sprayed for protection.

---+ Read the entire article on KQED Science:

https://ww2.kqed.org/science/2....017/06/20/a-real-ali

---+ For more information:

Visit the UC Riverside Center for invasive Species Research:
http://cisr.ucr.edu/invasive_species.html

---+ More Great Deep Look episodes:

Decorator Crabs Make High Fashion at Low Tide
https://www.youtube.com/watch?v=OwQcv7TyX04

Everything You Never Wanted to Know About Snail Sex
https://www.youtube.com/watch?v=UOcLaI44TXA

---+ See some great videos and documentaries from the PBS Digital Studios!

Gross Science: Meet The Frog That Barfs Up Its Babies
https://www.youtube.com/watch?v=9xfX_NTrFRM

Brain Craft: Mutant Menu: If you could, would you design your DNA? And should you be able to?
https://www.youtube.com/watch?v=NrDM6Ic2xMM

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---+ About KQED

KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is also supported by HopeLab, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Smart Family Foundation and the members of KQED.
#deeplook #palmweevil

The humble pine cone is more than a holiday decoration. It's an ancient form of tree sex. Flowers may be faster and showier, but the largest living things in the world? The oldest? They all reproduce with cones.

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DEEP LOOK: a new ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific mysteries by going incredibly small.

Do pine cones have seeds?

“There are two different types of cones,” says Bruce Baldwin, professor of plant biology at University of California, Berkeley. “There’s seed cones and pollen cones. The pollen cones are relatively tiny. The seed cone gets to be much larger and takes three years to develop and release seeds so you can often see pine cones of three different stages of development on a single tree.”

Why do pine cones open and close?

Early in their development, the scales open slightly for a short time to grant access to wind-borne pollen released from smaller pollen cones. After receiving the pollen, the female cones close back up until the seeds are fertilized and mature. Once they are, the scales reopen allowing the wind to disperse the winged seeds.

What are the oldest living trees?

Conifers are some of the oldest plants in the forest. And they were once much more diverse than they are today. But since the evolution of flowering plants, their diversity has plummeted. Today only about 0.3 percent of all the species of seed plants have cones. Flowering plants have taken over most of the warmer, wetter habitats, pushing out the evergreen conifers.

What are the tallest living trees?
The tallest (coast redwood), most massive (giant sequoia) and oldest living (bristlecone pine) individual organisms is the world are all conifers.


More great Deep Look episodes:

These 'Resurrection Plants' Spring Back to Life in Seconds | Deep Look:
https://youtu.be/eoFGKlZMo2g

The Hidden Perils of Permafrost:
https://youtu.be/wxABO84gol8


See also another great video from the PBS Digital Studios!

It's Okay to Be Smart:
https://youtu.be/jgspUYDwnzQ

BrainCraft:
https://www.youtube.com/watch?v=Xr1dB86xE8o


Read an extended article on pine cones:
https://ww2.kqed.org/science/2....015/11/24/the-sex-li

If you’re in the San Francisco Bay Area, You can check out the conifer collections at the University of California, Berkeley Jepson Herbarium:
http://ucjeps.berkeley.edu/

Or take a stroll through Tilden Regional Parks Botanic Garden to see a variety of California conifers:
http://www.ebparks.org/page156.aspx



KQED Science: http://www.kqed.org/science
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Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is supported by HopeLab, The David B. Gold Foundation; S. D. Bechtel, Jr. Foundation; The Dirk and Charlene Kabcenell Foundation; The Vadasz Family Foundation; Smart Family Foundation and the members of KQED.
#deeplook

FC Barcelona history and the ACTUAL true history of Real Madrid CF & it's so called success |

~ Real Madrid vs Barcelona , Barcelona vs Real Madrid : The roots of the rivalry between Real Madrid and FC Barcelona is actually a fascinating study into the Spanish history of the early-to-mid 20th century. Real reason of the rivalry between the two clubs is because of the traditional standing of the two provinces politically. Madrid, as the capital of Spain and the seat of the royal family, was seen as the region promoting conservatism. Barcelona, as the capital of Catalonia, was the district which was at the forefront of ushering in the modern era in everything - fashion, republicanism etc. Hence a regional rivalry always existed between these two regions. Franco regime was centred, politically and economically, around Madrid. For this reason, Real Madrid, as the most successful team in the city, and the most prestigious team of entirely Castilian identity, was always likely to be the preferred team of the dictator. It was for this reason that the Generalísimo paid regular visits to watch the side in the 1950s and ’60s, especially during their most successful period when, inspired by the majestic Di Stefano, they won five consecutive European Cups between 1956 and 1960.

~ The First Ever Encounter : El Clasico , the first ever encounter between the two clubs occurred on May 13, 1902. Barcelona won thatencounter 3-1,owing to the "6 foreigners that they lined up", according to the official Real Madrid website. Classic case of sour grapes, thus kicking off the biggest rivalry in all of world football.

~ The Spanish Civil War : The war raged from 1936 to 1939, and was the major factor in shaping the rivalry as we see it today. General Francisco Franco successfully staged a coup and captured Madrid in 1939 to end the war. Since Barcelona bitterly fought Franco's policies, he held a particular anger against that region, often resorting to murder or torture to get his point across - that a different culture and society under his rule would not be tolerated. Now, football was growing as an outlet of the people's views and sentiments. Hence, the people of Catalonia started supporting FC Barcelona in hordes, just to show that they are united in their hatred of General Franco, and to celebrate their unique culture and languages. In fact, FC Barcelona became “mes que un club,” more than a club, to Catalans as well as to progressives and left-leaning Spaniards across the country.

~ The Di Stefano Signing : As if the war wasn't enough, the battle between Barcelona and Real Madrid for the signature of Alfredo Di Stéfano took the rivalry to new heights. In 1953, Di Stefano had been plying his trade in Colombia for Millionarios when he was spotted by both Spanish clubs. He actually belonged to the Argentine club River Plate, but was on loan to the Colombians due to a player’s strike in Argentina. Both clubs sent emissaries to sign him, and after long and protracted negotiations, FIFA ruled that FC Barcelona would sign Di Stefano. Here is where the government in the form of the Spanish Football Federation stepped in - they banned the signing of any foreign player in Spain, allowing Real to swoop in and agree a deal with Di Stefano. This led to an impasse, which was resolved when the Spanish Federation ruled that Di Stefano would be allowed to play four years in Spain, two for Barcelona and two for Real. Barcelona though, backed out of this deal (supposedly on the orders of their Franco-backed president), which allowed Real Madrid to become the sole owner of Di Stefano. The rest,as they say, is history, as he led Real Madrid to 8 league titles, but more importantly, 5 consecutive European crowns, leaving Barcelona in their wake. This left more than a bitter taste in FC Barcelona's fans' mouth.

~ The Death of Gamper : Joan Gamper the founder of FC Barcelona was banned from the club which led to his suicide.

~ Real Madrid 11-1 Barcelona : On Barcelona’s part, there is a story, also steeped in myth, which sums up the way they were perceived and treated by the regime. The story goes that, in 1943, after winning the first leg of a cup semi-final against Real Madrid 3-0, Barcelona’s players were paid a visit by one of Franco’s cronies, who reminded them that they were only allowed to play at all due to “the generosity of the regime”, and suggested in no uncertain terms that they ease off in the second leg. Real Madrid went on to win that game 11-1, by far the biggest win in Clásico history.

MES QUE UN CLUB ! MORE THAN A CLUB ! VISCA EL BARCA !

Una visita con el Arzobispo de Panamá para que nos hable de la venidera JMJ 2019

Eric Shane and Calvin react to and discuss Star Wars: The Rise of Skywalker | Final Trailer #TheRiseOfSkywalker #StarWars #TheRiseOfSkywalkerReactions

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Cortometraje: Fe y Confianza - Testimonio Real : Narracion por Jesus Adrian Romero

We're kicking off our exploration of muscles with a look at the complex and important relationship between actin and myosin. Your smooth, cardiac, and skeletal muscles create movement by contracting and releasing in a process called the sliding filament model. Your skeletal muscles are constructed like a rope made of bundles of protein fibers, and that the smallest strands are your actin and myosin myofilaments. Its their use of calcium and ATP that causes the binding and unbinding that makes sarcomeres contract and relax.

Table of Contents
Smooth, Cardiac, and Skeletal Muscles Create Movement 1:18
Sliding Filament Model 4:52
Skeletal Muscles Are Made of Bundles of Protein Fibers 2:40
Actin and Myosin Myofilaments 3:54
Calcium and ATP Cause the Binding and Unbinding 5:05

***

Crash Course is now on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

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FROM: Mrs. S

You are confident and courageous! I believe in you! DFTBA!

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FROM: She who gave you life!

You, like the Mongols, will always be the exception.

***SUPPORTER THANK YOU!***

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Video from Julio Rodríguez,Abril 19, 2020

When the rope becomes taut, the force on the jumper is mainly his weight downwards, plus a bit of air resistance up. Therefore his speed is increasing nearly as much as it did when he leapt off the platform. So this is not the greatest acceleration of the jump.

Un hermoso video que me inspiró el Señor espero que les guste y les bendiga el Señor Jesús ?

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My first video capturing Kung Fu Panda gameplay on the XBOX 360.

I use DAZZLE CREATOR PLUS to capture my gameplay videos. Further editing done through SONY VEGAS. You DON'T need a HD-PVR if you like to experiment with different settings and file formats.

I shall post more videos of XBOX 360 gameplay soon. Leave comments and subscribe to my channel if you like the video.

Escuchanos en las plataformas digitales
Spotify:
https://open.spotify.com/album..../7D5iViMUxXlPr6rVVml
TIDAL:
https://tidal.com/browse/artist/4068995
iTunes:
https://itunes.apple.com/mx/ar....tist/biper-y-sus-ami

Escucha Nuestra Playlist en Spotify creada especialmente para ti:
https://open.spotify.com/user/....0xjqbzh0admmhmcljq1f

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Letra de la canción:
Lucas
-¿Qué?
-¿Lucas es inteligente?
-Si
-¿Cuanto mide un gigante?
-Como más de tres metros
-Es más grande que mi papá
-Biper ¿es cierto que hubo un gigante en la Biblia?
-Si… ¿Quieren que les cuente?
Hoy voy a contarte algo muy importante
Lo cuenta la Biblia es algo fascinante
Te vamos a hablar de un pequeño como tu
Se trata de David cuando enfrentó al gigante
Tenía una honda que no era nada grande
Pero muy grande era su fe
David le zumbó el zúm
Y con su onda lo hizo caer

Coro:
Zum Zum David le puso a su onda
Zum Zum a su fe le puso onda
Zum Zum y al gigante lo derrumbó (bis)
Voz también podes ponele onda a tu fe

Y a todos los gigantes podes hacer caer
Si como David tú te animas a creer

Zum Zum - Biper y sus Amigos (Vídeo Oficial)

HEAVEN NETWORKS, HEAVEN MUSIC GROUP, HEAVEN KIDS, HEAVEN MUSIC & HEAVEN PUBLISHING

Oso Yogi - 09.- Oso Desconcertado

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Best Panna Skills Ever in Football || Most Humiliating & Best -est Nutmegs So Far in Football in Recent Times ||