Sexta-feira, 31 de Julho de 2009

Merce Cunningham - Beach birds for camera (1993) part 3






Merce Cunningham - Beach birds for camera (1993) part 2

Merce Cunningham - Beach birds for camera (1993) Part 1


Milho Transgénico- ponto de situação em Portugal


2009/07 - Agora que já saíram os números oficiais relativos a 2009 sobre o cultivo de milho transgénico em Portugal, vale a pena olhar para as tendências e tentar perceber o que nos dizem.

Vejamos o gráfico com a evolução da área cultivada ao longo dos anos desde que o milho transgénico MON 810 foi autorizado em Portugal:


Note-se que o gráfico foi construído com base nos números oficiais do Ministério da Agricultura. Embora a área cultivada ainda esteja a aumentar, esse aumento é cada vez mais reduzido - o crescimento está a estagnar. Essa aceleração negativa também pode ser observada neste gráfico que mostra a percentagem de crescimento em cada ano relativamente ao ano anterior:

Finalmente vale a pena olhar para este gráfico, que mostra a proporção da área cultivada com milho transgénico relativamente à área total dedicada ao milho em Portugal:

[Como há diferentes valores para a área total dedicada ao milho, usámos a referida num artigo científico recente: Skevas, Wesseler, Fevereiro (2009) Coping with Ex-ante Regulations for Planting Bt Maize - The Portuguese Experience. AgBioForum 12(1):60-69]


O que é que todos estes números mostram? Que, ao contrário do que muitos nos querem fazer crer, o cultivo de milho transgénico está a enquistar em Portugal em zonas residuais relativamente ao cultivo de milho em geral. E se o Ministério da Agricultura, em vez de promover uma tecnologia patenteada cujo lucro reverte directamente para multinacionais estrangeiras, desse atenção e apoiasse o desenvolvimento de processos e boas práticas capazes de resolver de forma ecológica e sustentável o problema da broca do milho, a adesão ao milho transgénico seria ainda menor que a actualmente observada.

Fonte: Transgénicos Fora

Imagem: EuroMed


SER À MIC


Um espectáculo de rara beleza, não acham?

(Ser Àmic em catalão significa SER AMIGO e Seramic significa CERÂMICA)


Quinta-feira, 30 de Julho de 2009

Dicas para se prevenir de fraude ao aceder ao Home Banking


Os e-serviços resultam em mais conforto, menos deslocações, eficazes e globalmente amigas do ambiente. Contudo há sempre riscos. Assim, repasso um e-correio, bastante útil.

Dicas para se prevenir de fraude ao aceder ao Home Banking:

Quando fizer uso dos serviços bancários pela Internet, siga as 3 dicas abaixo para verificar a autenticidade do site: 1 - Minimize a página . Se o teclado virtual for minimizado também, está correto. Se ele permanecer na tela sem minimizar, é pirata! Não tecle nada. 2 - Sempre que entrar no site do banco, digite sua senha ERRADA na primeira vez. Se aparecer uma mensagem de erro, significa que o site é realmente do banco, porque o sistema tem como checar a senha digitada. Mas se digitar a senha errada e não acusar erro é mau sinal. Sites piratas não tem como conferir a informação, o objetivo é apenas capturar a senha. 3 - Sempre que entrar no site do banco, verifique se no rodapé da página aparece o ícone de um cadeado; além disso clique 2 vezes sobre esse ícone; uma pequena janela com informações sobre a autenticidade do site deve aparecer. Em alguns sites piratas o cadeado pode até aparecer, mas será apenas uma imagem e ao clicar 2 vezes sobre ele, nada irá acontecer. Os 3 pequenos procedimentos acima são simples, mas garantirão que você jamais seja vítima de fraude virtual.


Cravos Transgénicos? GMO carnations?


Fonte: Amazon
28 de Julho de 2009
Acabamos de terminar uma petição sobre cravos OGM com a cor alterada. Nomeado Moonaqua (TM). Estes cravos ainda não estão disponíveis na Europa, porque eles são geneticamente modificados e ainda não não estão autorizados. Mas o Ministério do Meio Ambiente Holandês irá autorizar dentro de 6 semanas. Você pode protestar contra esta flor até esse prazo. Para testar sobre a segurança destas flores utilizam células embrionárias de ratos e humanos e tudo isto por uma mudança de cor. Existem uma grande variedade de cravos com belas cores em todo o globo, não precisamos de cores artificiais. Assine a nossa petição, enviando um e-mail para info(at)gentechvrij.nl, declarando em assunto: Petição sobre cravos-OGM Moonaqua, C/NL/06/01, indicando no corpo da mensagem seu nome da rua cidade país sem vírgulas.
Mais informações sobre os cravos OGM você pode ler
aqui e aqui (AESA Síntese).
Prazo até 1 de Setembro de 2009.


Check these links

1.More languages available: Dutch, English and German) in Gentechvrij: The European GMO-Free Citizens

2. The Living Modified Organism (LMO) Registry for FLORIGENE Moonaqua™ (123.8.12) on BioSafety Clearing House


Documentário- America: Freedom to Fascism (2006) , por Aaron Russo

As taxas, os impostos, o cartão do cidadão e outros assuntos atacando os mais elementares direitos dos cidadãos: estudo de caso nos EUA, um aviso do já falecido realizador Aaron Russo.






















Quarta-feira, 29 de Julho de 2009

Is Peak Oil Real? A List of Countries Past Their Peak Oil Production




By tracing all imports from Saudi Arabia, it can be seen that their total exports have declinedPosted by Gail the Actuary

in Planet Thoughts

Only 14 of the 54 oil producing nations in the world are still increasing their oil production. The era of cheap oil is definitively over.

This is a guest post by Praveen Ghanta, known on The Oil Drum as "praveen". Praveen is an IT consultant in Atlanta, with degrees in economics and computer science. This was originally posted on Praveen's blog, at truecostblog.com.

Is peak oil real? The BP Statistical Review of World Energy provides the data needed to answer this question. Using the 2009 edition, I have compiled a list of all oil producing countries and regions in the world, along with the production status of each, ordered by year of peak production. BP groups minor producers into categories like "Other Africa", and "Other Middle East", and that notation is used here. All production numbers are quoted in thousands of barrels/day.

Country Peak Prod. 2008 Prod. % Off Peak Peak Year
United States 11297 7337 -35% 1970
Venezuela 3754 2566 -32% 1970
Libya 3357 1846 -45% 1970
Other Middle East 79 33 -58% 1970
Kuwait 3339 2784 -17% 1972
Iran 6060 4325 -29% 1974
Indonesia 1685 1004 -41% 1977
Romania 313 99 -68% 1977
Trinidad & Tobago 230 149 -35% 1978
Iraq 3489 2423 -31% 1979
Brunei 261 175 -33% 1979
Tunisia 118 89 -25% 1980
Peru 196 120 -39% 1982
Cameroon 181 84 -54% 1985
Other Europe & Eurasia 762 427 -44% 1986
Russian Federation 11484 9886 -14% 1987*
Egypt 941 722 -23% 1993
Other Asia Pacific 276 237 -14% 1993
India 774 766 -1% 1995*
Syria 596 398 -33% 1995
Gabon 365 235 -36% 1996
Argentina 890 682 -23% 1998
Colombia 838 618 -26% 1999
United Kingdom 2909 1544 -47% 1999
Rep. of Congo (Brazzaville) 266 249 -6% 1999*
Uzbekistan 191 111 -42% 1999
Australia 809 556 -31% 2000
Norway 3418 2455 -28% 2001
Oman 961 728 -24% 2001
Yemen 457 305 -33% 2002
Other S. & Cent. America 153 138 -10% 2003*
Mexico 3824 3157 -17% 2004
Malaysia 793 754 -5% 2004*
Vietnam 427 317 -26% 2004
Denmark 390 287 -26% 2004
Other Africa 75 54 -28% 2004*
Nigeria 2580 2170 -16% 2005*
Chad 173 127 -27% 2005*
Italy 127 108 -15% 2005*
Ecuador 545 514 -6% 2006*
Saudi Arabia 11114 10846 -2% 2005 / Growing
Canada 3320 3238 -2% 2007 / Growing
Algeria 2016 1993 -1% 2007 / Growing
Equatorial Guinea 368 361 -2% 2007 / Growing
China 3795 3795 - Growing
United Arab Emirates 2980 2980 - Growing
Brazil 1899 1899 - Growing
Angola 1875 1875 - Growing
Kazakhstan 1554 1554 - Growing
Qatar 1378 1378 - Growing
Azerbaijan 914 914 - Growing
Sudan 480 480 - Growing
Thailand 325 325 - Growing
Turkmenistan 205 205 - Growing
Peaked / Flat Countries Total - 49597 - 60.6% of world oil production
Growing Countries Total - 32223 - 39.4% of world oil production

Only 14 out of 54 oil producing countries and regions in the world continue to increase production, while 30 are definitely past their production peak, and the remaining 10 appear to have flat or declining production [1]. Put another way, peak oil is real in 61% of the oil producing world when weighted by production. Since 2008 capped a record run for oil prices, most countries and oil companies were trying all-out to increase production. While a handful of producers (think Iraq) might be limited by above-ground factors, the majority of producers simply couldn't do any better in 2008 [2].

The evidence of the demise of the cheap oil era has become insurmountable. In the face of the highest oil prices on record, the great majority of the world's oil producers were incapable of taking advantage and producing more oil. Many nations including the US saw their oil production peak decades ago - there simply is no turning the clock back. This list shows that we are relying on a small number of countries to keep providing cheap oil. We need to move faster to alternatives and greater energy efficiency, before the last fourteen peak as well.

* More information on these countries:

  • Russian Federation - Russia's oil production collapsed by the early 90's as the Soviet Union collapsed, but despite a decade of growth, Russia's own oil execs don't think the old peak can be surpassed.
  • India's production appeared to plateau in 1995, and has stayed within a steady range since. The EIA forecasts Indian oil production to remain flat or decline slightly in the near future.
  • Republic of Congo (Brazzaville) hit a production plateau in 1998, though current production is still very close to 1999 peak levels.
  • Other Central & South America - The remaining countries of the Americas hit a production peak in 2003, though it's still too soon to know if this will be final peak.
  • Malaysia has been on a production plateau since 1995, and the EIA projects flat or falling production.
  • Other Africa - Oil production in much of Africa is potentially impacted by above-ground constraints, so it's definitely possible that production will rise here. It will rise from a low base of only 50,000 bpd however, and may not have much impact on total world production.
  • Nigeria is impacted by domestic insurgencies in its oil-producing regions, and may be able to lift production if the political situation improves.
  • Chad's oil production history is too short to definitively identify a peak in production, but the drop-off since 2005 has been dramatic.
  • Italy has been on a production plateau for over 10 years, and it's unlikely that a mature economy is significantly under-exploiting its resource potential.
  • Ecuador's production grew rapidly until 2004, but has leveled off and declined somewhat since then.

[1] To be considered past-peak, a producer's current (2008) production has to be at least 10% less than its best year, and the best year must have occurred prior to 2005. Some countries' production has been artificially constrained by political and other non-geological considerations. But in some of these cases, it will be difficult to pass an old peak because decades of depletion have occurred since that peak. Iraq peaked in 1979, making it all the more difficult to pass that now.

[2] While OPEC maintains formal production quotas, it is widely believed that only Saudi Arabia had true spare capacity in 2008, while all other OPEC nations were producing at capacity. The truth is unclear, since OPEC nations do not provide detailed reserve statistics for their oil fields.

Total [oil company] has created its own short list of oil producers past peak, and Wikipedia has a list here.

Source: The Oil Drum


Andrej Belic- fotógrafo dos oceanos


reef

Description (by Andrej Belic) :
One of my all time favorites. It has everything inside I like: pink soft coral, grey coral, orange fishes, blue water and the sun in the background.

Fotografias excepcionais, com descrições muito completas. Ver página aqui


Dan Dennett – A Ideia Perigosa de Darwin


Este vídeo é uma palestra proferida para a Free University .
Sobre a obra A Ideia Perigosa de Darwin mais detalhes aqui no wiki-uk e wik-pt



Português e outras Línguas no BioTerra

Car@s amig@s
Por questões de maior respeito por quem lê o meu blogue, presto os seguintes esclarecimentos: o meu blogue é lido por pessoas um pouco por todo o mundo; tenho amigos e profissionais estrangeiros que me escreveram solicitando maior presença do Inglês no meu blogue. Além disso tenho dificuldade de tempo em traduzir textos com mais actualidade noutras línguas, e que considero importante entrar no espaço português, porque não chegam aos média em Portugal. A partir deste mês o meu blogue vai intercalar postagens em Português e noutras línguas (Inglês, Francês, Espanhol).
Muito grato pela vossa atenção e amizade
Abraço



Velas e Carbono* Candles and Carbon

The widespread practice of misguided eco-Luddites turning off their lights for Earth Hour and burning candles as a source of light is grossly misguided and actually contributes to increased carbon dioxide emissions. [reading more here: Physical Insights]
In a society where 94 percent* of the electrical energy generated is generated using fossil fuels, ordinary citizens using electricity are not to blame for anthropogenic greenhouse gas emissions.

* Ref: Relatório Estatístico dos Consumos Energéticos 2009 da IEA http://www.iea.org/Textbase/stats/surveys/mes.pdf


Ideia entretanto também referida em Calor: Como Impedir o Planeta de Arder, de George Monbiot

Ler mais em:
Turn Up the Heat



Terça-feira, 28 de Julho de 2009

They Might Be Giants- Mammal (Mamíferos)


Uma vez que mamíferos marcam a diferença,nada melhor do que fazer uma revisão da matéria dada com a abordagem poética e musical dos They Might Be Giants, possuidores de um rock muito fresco, sedutor e interventivo! Segue-se a letra.

Glass of milk
Standing in between extinction in the cold
And explosive radiating growth

So the warm blood flows
Through the large four-chambered heart
Maintaining the very high metabolism rate they have

Mammal, mammal, their names are called
They raise a paw, the bat, the cat
Dolphin and dog, koala bear and hog

One of us might lose his hair
But you're reminded that it once was there
From the embryonic whale to the monkey with no tail

So the warm blood flows with the red blood cells lacking nuclei
Through the large four-chambered heart
Maintaining the very high metabolism rate they have

Mammal, mammal their names are called
They raise a paw, the bat, the cat
Dolphin and dog, koala bear and hog

Placental the sister of her brother Marsupial
Their cousin called Monotreme
Dead uncle Allotheria

Mammal, mammal, their names are called
They raise a paw the bat, the cat
Dolphin and dog, koala bear and hog
The fox, the ox, giraffe and shrew, echidna, caribou

Página oficial


Como evoluiu a vagina?

Do mesmo autor da postagem anterior PZ Myers

Resumo do artigo
Em praticamente todos os seres vivos, à excepção dos Mamíferos, o sistema reprodutor combinado com o sistema digestivo e urinário, desembocam todos num único tubo com contacto para o exterior, a cloaca. Há cerca de 150 milhões de anos, contudo, uma provável alteração nas funções do oviducto (aparecimento do útero, com funções de desenvolvimento interno do embrião) devido, muito provavelmente, a modificações epigenéticas, terá levado ao aparecimento de toda uma nova estrutura: a vagina.

Evolution of the mammalian vagina [originalmente aqui]

Q: What unique organ is found only in mammals, but not in fish, amphibians, reptiles, or birds?

The title and that little picture to the left ought to be hint enough, but if not, read on.

A: The vagina. Aren't we lucky?

There's an old joke going around about poor design: what kind of designer would route the sewer pipes right through the center of the entertainment center? It's a good point. It doesn't make sense from a design standpoint to have our reproductive and excretory systems so intimately intermingled, but it does make a heck of a lot of sense from a purely historical point of view. In a sense, reproduction is an excretory function: we are shedding gametes produced internally, and we already have a perfectly good set of pipes running from our insides to the outside, so why not use them? It's just that in our lineage, which has specialized in giving great care to our gametes and zygotes, that plumbing has become increasingly elaborate, and that part of the system that was once just a convenient throughway has become a destination and a long-term residence in its own right.

Development tells us part of the story. The reproductive and urinary tracts are all tangled together in early development, arising together from two pairs of ducts, the Müllerian and Wolffian ducts, which are modified in complex ways to form a series of kidneys (we keep only the last one, the metanephros), one set of pathways for the male testes, and yet another set for the female ovaries.

In non-therian mammals, all of these complicated pipes have one common destination, a single outlet to the external world: the cloaca. Cloaca is Latin for sewer, and it is appropriately named. The terminus of the large intestine is here, as well as the ends of the ureters from the kidneys and the ducts from the ovaries or testes. Everything gets dumped in to the cavity of the cloaca, making a nice stew of feces, urine, and sperm or eggs. Mmm-mmm. The cloaca is the grey cylinder at the bottom of figure A, below, in the first three organisms, amphibians, birds/reptiles, and monotremes (my apologies for the murkiness of the image; it's the best copy I have).

tetra_repro_evo.jpg
(Click for larger image)

Evolution of the tetrapod reproductive system. (A) Female urogenital system from major tetrapod lineages. Inf, infundibulum; Ov, ovary; Ovd, oviduct; Ut, uterus (or shell-producing region in non-therian animals); Vg, vagina; Kd, kidney; Ud, urinary duct; Rc, rectum; Ub, urinary bladder; Cl, cloaca. (B) Tetrapod egg. *, the shell coat of birds and some reptiles is highly calcified. MPS, marsupial-specific mucopolysaccharide layer. (C) Tetrapod phylogeny showing major transitions in mammalian reproduction. Divergence of amphibians and amniotes (A). Divergence of birds/reptiles and mammals (B). Divergence of monotremes and therians (C). Divergence of marsupials and placentals (D).

The fundamental organization of the reproductive part of the vertebrate urogenital tract is straightforward: it's a tube with a funnel at one end that captures eggs released by the ovary, and conducts them to an external orifice. Along the way, cells lining the tube secrete useful products like albumin and yolk, and deposit a shell, and may act to temporarily store the egg before its final release.

Marsupial and placental mammals have dispensed with most of those functions, and expanded on others. One part of the oviduct has acquired a richly vascularized epithelium and specializations for investing and nurturing a resident embryo, becoming a uterus. That's an amazing and innovative function in itself, but in addition, it has formed a new, separate channel, the vagina. The vagina is an entirely new structure, which has no homolog in amphibians or reptiles.

That is an interesting observation. It's a wholly original structure that arose sometime after the monotreme-marsupial split, an evolutionary novelty. How did that happen? How can we study a unique event that occurred over 150 million years ago?

marsupial_origins.gif
(click for larger image)

Evolutionary tree showing placement of the three groups of living mammals (colored boxes and icons at top) with respect to selected Mesozoic taxa. Branching times for the black tree are based on the earliest known fossil occurrences of taxa (black dots).The red tree is based on molecular divergence times for monotremes-therians and eutherians- metatherians.

Wagner and Lynch have a proposal to answer both questions. The general mechanism for generating novel structures is evo-devo orthodoxy:

  1. An epigenetic side effect of other evolutionary changes in the body leading to a novel physical structure in the organisms.
  2. The genetic consolidation and individuation of the novel structure.

(Note that this proposes phenotype before genotype, which is somewhat heretical for neodarwinism. It shouldn't trouble the evo-devo gang in the slightest, of course.)

How to study such a process from the past?

The basic assumption of a molecular evolutionary approach to the study of evolutionary novelties is that changes in developmental regulation have left traces in the molecular structure of the genome and a comparative study of genomic structures should be able to identify genetic changes coincidental with a phenotypic novelty. (emphasis mine)

That process of consolidation and individuation would have left detectable scars in the genome—the genes involved would have acquired changes necessary to fix the phenotype in the population. Again, as we'd expect from the evo-devo perspective, those changes would have been made to the regulatory genes that control tissue-specific gene expression. What genes should we examine? Let's look at the therian organs of interest, and here are some likely candidates: the HoxA genes that have region-specific domains in the female reproductive tract.

hox_repro_tract.jpg
Hox gene expression pattern and the evolution of the female reproductive tract. (a) HoxA-13 to HoxA-9 are located at the 5' end of the HoxA cluster and are expressed in the same regions in the adult as in the embryo: HoxA-13 (green), HoxA-11 (yellow), HoxA-10 (orange) and HoxA-9 (blue). (b) Tetrapod phylogeny showing representative female reproductive systems from each group (amphibian ovaries shown only on the left).
hoxa11_phylo.gif
Phylogenetic relationships among a small set of vertebrate species including representatives of the major mammalian clades: monotremes (platypus), marsupials (opposum) and placentals (Hyrax and human). Above some branches the estimated number of non-synonymous and synonymous substitutions of HoxA-11. The estimates are obtained from a maximum likelihood codon model as implemented in PAML. Note that in the stem lineages of therians (i.e., the lineage leading to the most recent common ancestor of opossum and the placentals), there are five to six non-synonymous substitutions but no synonymous substitution. This indicates a very strong selection coincidental with the evolution of the internal developmental mode of mammals.

The HoxA-9 through HoxA-13 genes are expressed in order along the length of the embryonic Müllerian duct, and also continue to be expressed in adulthood; so the cells of the vagina are all expressing HoxA-13, while the cells of the cervix all have HoxA-11 turned on (for some reason, I find that to be a wonderful piece of knowledge, and I just have to say…Hooray for HoxA-13! It has just become my favorite Hox gene.)

So the question is whether there is any evidence that these particular Hox genes have signs of any set of changes that are associated with particular transitions in vertebrate evolution—in particular, are there differences that can be traced to the transition between monotremes and the theria, and between the placentals and marsupials. The answer seems to be yes: the diagram to the right is a measure of the number of synonymous to nonsynonymous changes in HoxA-11, which is an indicator of the selective pressures that have shaped the gene.

Furthermore, they've identified where these changes have occurred, and they are not in the homeodomain (the part of the protein that binds to specific sequences in the DNA, but in the amino terminal end.

hoxa11_var.gif
Approximate positions of the amino acids positions of HoxA-11 which are under directional selection between the most recent common ancestor of all extant mammals and the most recent common ancestor of placentals. Note that all of these substitutions are N-terminal of the homeodomain and affect small clusters of amino acids.

The 3-D models below show where the relevant amino acids (in yellow) end up in the folded protein. The interesting thing here is that regulatory proteins don't just interact with each other, but also with other regulatory proteins that are simultaneously binding. It's a whole chain of interactions—regulatory proteins binding to the DNA, and also binding between each other in a complex called the enhancersome—that determines the level of expression of a particular gene.

hoxa11_struc.jpg
HoxA-11 protein structure. This three-dimensional protein model was calculated by comparative modeling as part of the MODBASE project. (A) Model shown as ribbons. (B) Model rendered with a molecular surface. The DNA-binding homeodomain is shown in red. The carboxy-terminal region of exon 2 is shown in blue. Residues identified as being under directional (positive) selection in the stem lineage of eutherians are shown in yellow. Residues replaced in the stem lineage of therians but not identified under selection are shown in green. Note that all of these amino acid sites affect amino acids that are predicted to be placed on the surface of the molecule as expected if selection is driven by novel protein-protein interactions.

There is a great deal left to be done. Hox genes are rather high up the chain of regulatory genes, so there are many more genes downstream that have to be puzzled out. We also are a long ways from figuring out how these patterns of gene expression define the morphogenetic processes that create this lovely novel structure, the vagina. The important thing, though, is that there are these questions waiting to be answered—the investigators have a research program.

We propose that a research program to explain evolutionary novelties has to focus on the question of whether novel characters arise through the evolution of novel regulatory links among developmental genes. We further propose that a detailed analysis of the evolution of developmental genes involved in the development of a derived, novel character can reveal molecular changes that could be causally involved in the origin of evolutionary novelties. The case study presented here suggests that the statistical methods of molecular evolution are strong enough to provide specific hypothesis for experimental test. The success of this research program will depend on the ability to connect the patterns of molecular evolution with the functional role of these molecular changes.

That's the cool thing about evolutionary biology: exciting questions, titillating ancestors, and the promise of tools to answer more.


Lynch VJ, Roth JJ, Takahashi K, Dunn CW, Nonaka DF, Stopper GF, Wagner GP (2004) Adaptive evolution of HoxA-11 and HoxA-13 at the origin of the uterus in mammals. Proc Biol Sci. 271(1554):2201-7. [pdf]

Wagner GP, Lynch VJ (2005) Molecular evolution of evolutionary novelties: the vagina and uterus of therian mammals. J Exp Zoolog B Mol Dev Evol. [Epub ahead of print]

Cifelli RL, Davis BM (2003) Marsupial Origins. Science 302:1899-1900.



Segunda-feira, 27 de Julho de 2009

Lhasa de Sela - Small Song

.
I made a small small song
I sang it all night long
All through
The wind and rain
Until the morning came

This song is my small song
I sang it all night long
And when
The morning came
I had to start all over again

My song is so so small
I could get down and crawl
Searching from
Wall to wall
And never see
Anything at all

How could you hate
Such a small song?
If I was right
I would be wrong
Don't be afraid
It's just a small song

Página Oficial de Lhasa de Sela


Uma colecção de testes sobre Psicologia, Personalidade e Biologia Humana muito interessantes pela BBC



Explore your memory
Explore your memory
Stretch your memory with fun challenges designed by experts.
Duration: 20 minutes
Art and personality
Art and personality
Is there a connection between your personality type and the art that you like? Duration: 15 minutes
Sex ID
What sex is your brain?
Take the Sex ID test and find out more about 'brain sex' differences.
Duration: 20 minutes
Do you see what I see?
The 'Do you hear what I hear' experiment
Do you see what I see? (Sagiv and Ward, UCL)
Is Wednesday red? Take part in our experiment to test whether your senses overlap. Requires Flash 5
Duration: 10 minutes
Do you hear what I hear?
The 'Do you hear what I hear' experiment
Do you hear what I hear? (Sagiv and Ward, UCL)
Do melodies have a colour? Take part in our experiment to test whether you hear colours. Requires Flash 5
Duration: 10 minutes
The 'What am I like?' personality test
The 'What am I like?' personality test
The What am I like? personality test
A test where you discover if you are a Big Thinker, an Idealist or another of 16 personality types.
Duration: 10 minutes
Eggs in human mouth
Disgust (Dr Valerie Curtis)
What makes you squirm and say yuck? Test your sensitivity to disgust.
Duration: 10 minutes
Friendly smile
Spot the fake smile (Prof Paul Ekman)
Can you tell a real smile from a fake one? Requires Flash 6.
Duration: 10 minutes
Shopping list
Shopping list
Memory training
Try to improve your recall using World memory champion Andi Bell's technique. Requires Flash 5.
Duration: 5-10 minutes
Changing faces
Face perception (Prof David Perrett)
Can you guess someone's personality from their face?
Duration: 1st Experiment - 12 minutes
Duration: 2nd Experiment - 5 minutes
Brain scan
Personality (Neil Scott)
Who do you think you are? This psychology test scores you on five aspects of your personality.
Duration: 15 minutes
Scales of justice
Morals (Dr Keith Coaley)
Are you a pillar of society, or do you look after number one? Find out how moral you are.
Duration: 12 minutes
Lovers kiss
Lonely hearts (Prof Robin Dunbar)
Make your lonely hearts advert to reveal the hidden message of attraction.
Duration: 2 minutes
Pile of money
Millionaire (Sharon Maxwell Magnus)
Have you got what it takes to get to the top of the pile and stay there?
Duration: 1st test - 4 minutes
Duration: 2nd test - 2 minutes
Judge
Careers (Neil Scott)
What style of work suits your personality?
Duration: 10 minutes
Thrill-seeker
Sensation seeking (Prof Marvin Zuckerman)
Find out if you're a thrill-seeker in this classic psychological test.
Duration: 12 minutes
Clutch of cards
Self-control (Paul Rincon)
Are you a slave to your habits? Test your self-control against the rest of the nation.
Duration: 7 minutes
Lipstick
Perfectionism (Dr Randy Frost)
Do your friends tell you you're fussy and meticulous? Find out if you're a perfectionist.
Duration: 10 minutes
Sybols of attraction
Adultery (Dr Glenn Wilson)
Are you at risk of having an affair?
Duration: 10 minutes
Nose
Sniffing the decades (Dr Alan Hirsch)
Can scientists predict your childhood decade from the smells you find nostalgic?
Duration: 3 minutes
Necker cube
Necker cube (Dr Peter Naish)
Do your friends tell you you're fussy and meticulous? Find out if you're a perfectionist.
Duration: 10 minutes


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