Willian had the best chance of a cagey first 20 minutes at Stamford Bridge.The Brazilian latched on to a ball played into the right channel and advanced on goal but his shot was blocked by Everton keeper Tim Howard.Ross Barkley has twice had shots blocked – once by John Terry, another by Kurt Zouma – and the second one dropped to Bryan Oviedo, but he sidefooted just wide.Chelsea made one change from the side which drew 2-2 against West Bromwich Albion, with Nemanja Matic replacing Oscar in the starting line-up.Cesc Fabregas started in Oscar’s more advanced role, with Matic and John Obi Mikel providing the base in midfield.Pedro kept his place, despite being taken off at half-time against the Baggies, with Kenedy, Ruben Loftus-Cheek and Loic Remy among the substitutes.Everton have made three changes, with Oviedo coming in at right-back and one-time Chelsea target John Stones reverting to centre-half.Kevin Mirallas and Aaron Lennon are also back, while Ramiro Funes Mori, Leon Osman and Gerard Deulofeu drop to the bench.Chelsea: Courtois; Ivanovic, Zouma, Terry, Azpilicueta; Mikel, Matic; Willian, Fabregas, Pedro; Costa. Subs: Begovic, Baba, Cahill, Loftus-Cheek, Kenedy, Oscar, Remy.Everton: Howard; Baines, Stones, Jagielka, Oviedo; Besic, Barry; Mirallas, Barkley, Lennon; Lukaku.Subs: Robles, Funes Mori, Cleverley, Osman, Deulofeu, Pienaar, Kone.Follow West London Sport on TwitterFind us on Facebook
(Visited 438 times, 1 visits today)FacebookTwitterPinterestSave分享0 Inspiring cases of ballistics, civil engineering and architecture can be found in some of the simplest of living organisms.Fungus ballistics. When people say, “There’s a fungus among us,” they don’t usually mean it as a compliment. Perhaps they would if they watched the cannons they build to launch their spores. New Scientist says they have a really cool method of triggering their cannons: raindrops. Leah Crane reports that the secret has eluded a complete explanation for a century, till recently scientists at the University of North Carolina figured it out.Biologists have long known that the mechanism involved two drops of water interacting with the half-egg shape of spores launched in this way: an elongated drop that forms on its flat side, and a small spherical drop called a Buller’s drop that sits near the rounded base of the spore….When the drops merge, the loss in surface area releases some of the energy that was maintaining surface tension in the original drops. That is converted into the kinetic energy required to launch the spore away from its parent fungus.The secret might find application in creating self-cleaning surfaces, Crane writes. Another fungal secret was revealed on Phys.org. How do wood rot fungi consume wood, when no other organism has figured out how to tap into that energy source? They use a “biomass conversion too” that basically uses chemistry, not enzymes (although enzymes are made and used in the process). Chelators get into the cell wall and disrupt it so that the fungi can get to the good stuff and eat it. Janet Lathrop shares how important fungi are to the forest ecosystem.Venus Flower Basket, Credit: Kesari Lab/Brown UniversitySponge civil engineering. Sea sponges seem like the last things you would go to for inspiration about engineering, but Phys.org suggests we take a new look in an article titled, “Learning new tricks from sea sponges, nature’s most unlikely civil engineers.” Taken from Michael A. Mon’s piece at The Conversation, this article explains how sponges achieve a desirable trade-off between strength and light weight.Unlike a soft, squishy kitchen sponge, the marine sponge that I study, Euplectella aspergillum, is stiff and strong. It has an amazingly complex skeleton that consists of an intricate assembly of fibers, known as spicules, no larger than a human hair. Their structural function is much like that of the thousands of beams that make up the Eiffel Tower.Given the praise he heaps on what simple sponges can do, it seems odd he takes time out to preach a sermon on natural selection: “through natural selection, organisms with better designs often outlive those with worse ones and hand off the blueprints of those designs to their offspring through genetic inheritance.” Maybe he is emphasizing it because readers wouldn’t believe it.Protein architects. Proteins are only parts of cells within organisms, but they are master architects. They build clathrin cages in nerve cells, and viruses (not even organisms) pack DNA tightly in icosahedral containers. A paper in PNAS, “Beyond icosahedral symmetry in packings of proteins in spherical shells,” explains the significance of learning how these miniature machines achieve what they do:The design and construction of man-made structures at microscopic scales are one of the key goals of modern nanotechnology. With nature as inspiration, synthetic biological building blocks have recently been designed that self-assemble into quasi-spherical shells or cages. Whereas many natural protein building blocks self-assemble into highly symmetric ordered shells (e.g., viruses), our study shows that surprisingly even a small amount of (unavoidable) flexibility in the synthetic building blocks leads to stable disordered configurations. Our work provides a new design paradigm: Modulating the flexibilities of the components, one can control the regularity of the packing and, consequently, the surface properties of a synthetic cage.The authors find that “optimizing those flexibilities can be a possible design strategy to obtain regular synthetic cages with full control over their surface properties.”How did the simplest of living things come up with technologies our top scientists cannot yet duplicate? Nothing in biology makes sense except in the light of intelligent design.
Putting behind the bitter experience of steel major POSCO’s unsuccessful bid to set up a plant in Odisha, South Korea has evinced keen interest in forging a new relationship in investment and business with the State.South Korean Ambassador Shin Bong-kil, who led a business delegation, met Chief Minister Naveen Patnaik and key functionaries of the industries department here on Monday.“Recognising the State’s potential in natural resources, POSCO had made $12 billion investment commitment in 2005 to set up a steel plant in the State — it was not only the single largest overseas investment by a South Korean company, but also the single largest foreign investment ever made in India,” said Mr. Shin.‘Fast-growing State’Observing that POSCO’s mega investment had faced many hurdles, he said: “I understand both sides have learnt from POSCO’s experience and now need to make a fresh start. Odisha is a State growing very fast.”The delegation included representatives of Samsung, Hyundai, Kia and LG. Commenting on the slowdown in the automobile sector, the Ambassador said: “I think the phenomenon is temporary. Things will improve shortly. Korean automakers, however, have been doing very well in India.”Addressing the delegation, Mr. Patnaik said, “The Republic of Korea and Odisha have many possibilities to collaborate across identified focus sectors. We are in the process of promulgating a strategy document, Vision 2030, to ensure that 50% of the primary metal produced in the State is value-added within the State.”“Odisha is also fast emerging as the petrochemicals and chemicals hub where Korea has natural strengths. We welcome Korean investments in these and other sectors,” said Mr. Patnaik.
Goalkeeper of Mexico Guillermo Ochoa during a training session at the Arena Pernambuco in Recife, Brazil. (AP Photo)Mexico coach Miguel Herrera says he’s happy to be lucky if that means advancing in the World Cup.Mexico wraps up Group A play against Croatia, whose star midfielder, Luka Modric, said that Mexico benefited from some luck in its scoreless draw with Brazil last week.Herrera indicated that he’d rather be lucky than lose 3-1 to Brazil, as Croatia did.”If we have a draw with Brazil with luck or without it, we did it, they didn’t,” Herrera said.Mexico needs only another tie against Croatia to advance to the second round, while the Croatians must win.After practice Sunday night, Herrera and defender Hector Moreno appeared at a news conference where they generally avoided opportunities to respond to some of the verbal jousts issued earlier in the day by Modric and Croatia coach Niko Kovac.Kovac suggested that his side has the requisite caliber of attacking players to become the first to score against “El Tri” and goalkeeper Guillermo Ochoa in this World Cup, adding that “if anyone’s knees should be trembling,” it should be those of the Mexicans.”We could talk about 1,000 things here, and we could go through 1,000 circumstances that would lead us to believe that one (team) is better than the other,” Herrera said. “What we have to do is prove it on the pitch.”Mexico has played a World Cup in which we’ve proven we have an attitude of determination. It is a robust team. It is a team that has not conceded goals. It is a team that is doing things right.”advertisementMexico goalkeeper Guillermo Ochoa has posted a pair of shutouts against Cameroon and Brazil, needing a slew of spectacular saves to keep the Selecao from scoring.He could be challenged again by a Croatia side that is coming off a 4-0 victory over Cameroon, and which has several key players – from Bayern Munich striker Mario Mandzukic to Real Madrid’s Modric – who have put together successful careers in Europe’s top leagues.Mexico defender Hector Moreno, who plays for Spanish side Espanyol and has faced Modric in La Liga play, said Mexico has no lack of respect for Croatia’s talent, “but Mexico also has great individuals and we have a great team.”Moreno added that he’s “not attaching a great deal of importance” to comments made earlier Sunday by Modric and Kovac.”We will see everything on the pitch,” Moreno said. “We will see on the field who has better players and who has a better team – and I fully trust it will be Mexico.”For Herrera, the fact that Croatia has a number of players from top European leagues should provide that much more motivation for El Tri to show the world – and European scouts at the World Cup- what Mexican football is all about.Thus far, Mexico has managed just one goal, scored by Oribe Peralta in a 1-0 victory over Cameroon. Manchester United striker Javier “Chicharito” Hernandez not only has yet to score, but hasn’t cracked the starting lineup, instead coming in as a second-half substitute. Herrera said he isn’t planning any changes to his lineup, meaning Hernandez will open a third straight match on the bench.Both teams practiced on wet turf at Arena Pernambuco because of intermittent showers throughout Sunday, and more rain was in the forecast for Monday. Herrera joked that Mexico seems to have brought ran with it wherever it has traveled in Brazil. But El Tri has also brought fans – lots of them.A cruise ship with several thousand Mexican supporters aboard is docked in the port of Recife, and many more have been seen throughout town.Herrera said he’s expecting a heavily pro-Mexico crowd to push his players.”Of course, we have the idea, the feeling of what people in Mexico are going through, with the dreams that we’ve created,” Herrera said. “We will come out onto the field to give everything so we can obtain the objective we have set before us.”