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Hiển thị các bài đăng có nhãn learn. Hiển thị tất cả bài đăng

Thứ Sáu, 22 tháng 2, 2013

'Misfiring Gunners failed to learn'

Arsenal

Lessons not heeded ... Adam Peacock compares the fortunes of Arsenal and Bradford City. Source: Glyn Kirk / AFP

?It's fine to celebrate success but it is more important to heed the lessons of failure.?

So said Bill Gates, probably after he made $573 trillion from being a nerd.

Also probably had nothing to do with football, but still, the quote resonates this week.

FIFA seems to have learned from mistakes. So goal-line technology it is for the 2014 World Cup. Hip, hip hooray. Now about Qat ... nevermind.

Wigan travel to Reading this weekend in the first of the real late-season relegation six-pointers. There’s time to learn from any failure, but not much time to do anything about it.

Manchester United look to extend their lead at the top of the Barclays Premier League at Queens Park Rangers, on track to let everyone know they’ve learnt from last seasons’ late capitulation. But the words of dollar Bill are best summed up by using the example of two clubs who ironically live by the same financial philosophy but are in contrasting physiological states.

Arsenal

Fifth in the league and humbled out of one possible trophy and probably out of improbable glory in another. Blackburn and Bayern Munich – an unlikely one-two punch - but enough to make Arsene Wenger feel like he’s stumbling around in a post-KO haze. A feeling bottled in 2006, and now on tap.

The lessons of failure have not been heeded – do you get better by selling your ambitious best? No.

Is it believable the talk of 70 million pounds will be handed to Wenger in the summer to buy the solution/s? No.

Are Arsenal fans happy about it? Hell no, mainly because there seems no end to the current policy.

PWDLGDPts
1Man United2621233165
2Man City2615832453
3Chelsea2614752749
4Tottenham2614661448
5Arsenal2612862144
6Everton2610124842
7Liverpool2710981539
8Swansea279108437
9West Brom2611411137
10Stoke267127-533
11West Ham268612-930
12Fulham267811-629
13Sunderland267811-629
14Norwich266119-1529
15Southampton266911-927
16Newcastle267613-1227
17Aston Villa265912-2524
18Reading265813-1523
19Wigan265615-2121
20QPR2621113-2217

Many have grown sick and tired of that same old thing. So Wenger, who frayed at the edges before the Bayern game with the media, is more a target than he’s ever been. Tactically, some believe, the Frenchman is losing it.

However, for those who have bought in to the “Wenger Out” mentality, a thought: would his replacement ride into town with the ability to set his own agenda and transfer budget? Or will he accept the job offered by the Arsenal board, who won’t be changing the profit-making philosophy for anyone.

The latter, so how much does it matter who is in charge? Arsenal are fighting with one hand behind their back, and that hand happens to be holding a volume of resplendent annual reports. Arsenal’s next crop of brilliant will walk away if it keeps happening.

Losing to Blackburn in an FA Cup. Humbled by Bayern Munich (no disgrace) at home (OK, a little embarrassing) in the UEFA Champions League. Battling to stay in touch with the top four. And three months ago, beaten by Bradford City in the Capital One Cup.

Yes, Bradford.

The other club. A club which failed to the point of becoming extinct. Lessons learnt, they’ll play to win their first trophy in 102 years against Swansea in the final of the Capital One Cup.

Swansea are hot favourites because they play nice stuff and are eighth in the Premier League. Bradford are 11th in League two, or presently ranked 79th in English professional football.

Sure they’d rather be higher, but they are comfortable with the situation because... they are still a club.
That seemed unlikely numerous times in the past decade – recovering from outlandish spending to keep them in the Premier League at the turn of the millennium.

They didn’t, and in the years since plummeted down the divisions while dodging winding up orders like a politician dodges tricky questions.  Nowadays, Bradford don’t live beyond their means. The club makes a tiny profit and live close the edge of dropping out of the professional leagues without getting too close.

They heeded the perils of trying to be big-time without a budget. As can happen to any side, anywhere in Cup competitions – they got hot (and lucky) on the right night, against the right opponent – Wigan, Villa and yep … Arsenal.

Sure, Swansea might pump them 5-0. Bradford might win on penalties with Aussie Curtis Good scoring the winner. Who knows, and in the grand scheme of things, who cares?

It’s a fairytale trip to Wembley.

Arsenal? When they learn their lessons from the past eight seasons, perhaps they’ll be back there too.


Watch Arsene Wenger's men try to bounce back against lowly Aston Villa at 1.53am (EDT) on Sunday February 24, via Viewers Choice on Fox Sports 1HD.


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Thứ Năm, 21 tháng 2, 2013

Mosquitoes learn to ignore insect repellent DEET after first smell

DEET, one of the most widely used ingredients in insect repellent, has been found to actually lose its effectiveness against mosquitos, BBC News reported.

At first, mosquitos are repelled by their initial encounter with the substance, but they then get used to the smell and later ignore it, according to scientists from the London School of Hygiene and Tropical Medicine.

The researchers noted more research needed to be done on DEET, as well as repellent alternatives.

“The more we can understand about how repellents work and how mosquitoes detect them, the better we can work out ways to get around the problem when they do become resistant to repellents,” Dr. James Logan, from the London School of Hygiene and Tropical Medicine told BBC News.

DEET, chemical name N,N-Diethyl-meta-toluamide, was created by the U.S. military in 1946 and has been determined not to present any health concerns to the general population.  The oil generally works by creating an unpleasant smell for insects, repelling them rather than killing them.

To determine DEET’s effectiveness, the researchers from the London School tempted some mosquitos in the lab with an arm covered in DEET.  At first the mosquitos were repelled, but a few hours later, the mosquitos were tested again – and the scientists found the DEET was less effective in deterring the insects.

After placing electrodes on the mosquitos’ antennae, the researchers were able to measure what was going on.  Ultimately, the mosquitos were growing less sensitive to the chemical.

“There is something about being exposed to the chemical the first time that changes their olfactory system - changes their sense of smell - and their ability to smell DEET, which makes it less effective,” Logan told BBC News.

The study was published in the journal PLOS ONE.

Click for more from BBC News.


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