donderdag 30 april 2015

20150430 - language





The Origins of Language Dr. C. George Boeree


It is an intriguing question, to which we may never have a complete answer:  How did we get from animal vocalization (barks, howls, calls...) to human language?
Animals often make use of signs, which point to what they represent, but they don’t use symbols, which are arbitrary and conventional.  Examples of signs include sniffles as a sign of an on-coming cold, clouds as a sign of rain, or a scent as a sign of territory.  Symbols include things like the words we use.  Dog, Hund, chien, cane, perro -- these are symbols that refer to the creature so named, yet each one contains nothing in it that in anyway indicates that creature.
In addition, language is a system of symbols, with several levels of organization, at least phonetics (the sounds), syntax (the grammar), and semantics (the meanings).
So when did language begin?  At the very beginnings of the genus Homo, perhaps 4 or 5 million years ago?  Before that? Or with the advent of modern man, Cro-magnon, some 125,000 years ago?  Did the neanderthal speak?  We don’t know.
There are many theories about the origins of language.  Many of these have traditional amusing names (invented by Max Müller and George Romanes a century ago), and I will create a couple more where needed.
1. The mama theory.  Language began with the easiest syllables attached to the most significant objects.
2.  The ta-ta theory.  Sir Richard Paget, influenced by Darwin, believed that body movement preceded language.  Language began as an unconscious vocal imitation of these movements -- like the way a child’s mouth will move when they use scissors, or my tongue sticks out when I try to play the guitar.  This evolved into the popular idea that language may have derived from gestures.

3.  The bow-wow theory.  Language began as imitations of natural sounds -- moo, choo-choo, crash, clang, buzz, bang, meow...  This is more technically refered to as onomatopoeia or echoism.
4.  The pooh-pooh theory.  Language began with interjections, instinctive emotive cries such as oh! for surprise and ouch! for pain.
5.  The ding-dong theory.  Some people, including the famous linguist Max Muller, have pointed out that there is a rather mysterious correspondence between sounds and meanings.  Small, sharp, high things tend to have words with high front vowels in many languages, while big, round, low things tend to have round back vowels!  Compare itsy bitsy teeny weeny with moon, for example.  This is often referred to as sound symbolism.
6.  The yo-he-ho theory.  Language began as rhythmic chants, perhaps ultimately from the grunts of heavy work (heave-ho!).  The linguist A. S. Diamond suggests that these were perhaps calls for assistance or cooperation accompanied by appropriate gestures.  This may relate yo-he-ho to the ding-dong theory, as in such words as cut, break, crush, strike...
7.  The sing-song theory.  Danish linguist Jesperson suggested that language comes out of play, laughter, cooing, courtship, emotional mutterings and the like.  He even suggests that, contrary to other theories, perhaps some of our first words were actually long and musical, rather than the short grunts many assume we started with.
8.  The hey you! theory.  A linguist by the name of Revesz suggested that we have always needed interpersonal contact, and that language began as sounds to signal both identity (here I am!) and belonging (I’m with you!).  We may also cry out in fear, anger, or hurt (help me!).  This is more commonly called the contact theory.
9.  The hocus pocus theory.  My own contribution to these is the idea that language may have had some roots in a sort of magical or religious aspect of our ancestors' lives.  Perhaps we began by calling out to game animals with magical sounds, which became their names.
10.  The eureka! theory.  And finally, perhaps language was consciously invented.  Perhaps some ancestor had the idea of assigning arbitrary sounds to mean certain things.  Clearly, once the idea was had, it would catch on like wild-fire!
Another issue is how often language came into being (or was invented).  Perhaps it was invented once, by our earliest ancestors -- perhaps the first who had whatever genetic and physiological properties needed to make complex sounds and organize them into strings.  This is called monogenesis.  Or perhaps it was invented many times -- polygenesis -- by many people.
We can try to reconstruct earlier forms of language, but we can only go so far before cycles of change obliterate any possibility of reconstruction.  Many say we can only go back perhaps 10,000 years before the trail goes cold.  So perhaps we will simply never know.

Perhaps the biggest debate among linguists and others interested in the origins of language is whether we can account for language using only the basic mechanisms of learning, or if we need to postulate some special built-in language-readiness.  The learning-only people (for example, B. F. Skinner) say that childhood conditioning, or maybe modeling, can account for the complexity of language.  The language-acquisition-device (LAD) people (such as Chomsky and Pinker) say that the ease and speed with which children learn language requires something more.

The debate is real only for those people who prefer to take one or the other of these extreme views.  It seems very clear to most that neither is the answer.  Is there some special neural mechanism for language?  Not in the sense of a LAD.

In most mammals, both hemispheres looked very much alike.  Somewhere in humanity's early years, a few people possibly inherited a mutation that left one hemisphere with a limited capacity.  Instead of neural connections going in every direction, they tended to be organized more linearly. The left hemisphere couldn't related to things in the usual full-blown multidimensional way.  But -- surprise! -- that same diminished capacity proved to be very good are ordering things linearly.  And that's exactly what language needs:  The ability to convert fully dimensional events into linear sequences of sounds, and vice versa.
© Copyright 2003, C. George Boeree

 http://webspace.ship.edu/cgboer/

woensdag 29 april 2015

20150429 - yogurt





Yogurt, yoghurt, or yoghourt ; from Turkish: yoğurt; other spellings listed below) is a food produced by bacterial fermentation of milk. The bacteria used to make yogurt are known as "yogurt cultures". Fermentation of lactose by these bacteria produces lactic acid, which acts on milk protein to give yogurt its texture and its characteristic tang.
Worldwide, cow's milk, the protein of which is mainly casein, is most commonly used to make yogurt. Milk from water buffalo, goats, ewes, mares, camels, and yaks however, is also used to produce yogurt in various parts of the world.
Dairy yogurt is produced using a culture of Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus thermophilus bacteria. In addition, other lactobacilli and bifidobacteria are also sometimes added during or after culturing yogurt. Some countries require yogurt to contain a certain amount of colony-forming units of microorganisms.
In Western culture, the milk is first heated to about 85 °C (185 °F) to denature the milk proteins so that they set together rather than form curds. In some places, such as parts of India and Bangladesh, curds are a desired component and milk is boiled. After heating, the milk is allowed to cool to about 45 °C (113 °F).[citation needed] The bacterial culture is added, and the temperature of 45 °C is maintained for 4 to 7 hours to allow fermentation.


 http://en.wikipedia.org/wiki/Yogurt

dinsdag 28 april 2015

20150428 - nepal





Nepal , officially the Federal Democratic Republic of Nepal, is a landlocked country located in South Asia. With an area of 147,181 square kilometres (56,827 sq mi) and a population of approximately 27 million, Nepal is the world's 93rd largest country by land mass[10] and the 41st most populous country. It is located in the Himalayas and bordered to the north by the People's Republic of China, and to the south, east, and west by the Republic of India. Nepal is separated from Bangladesh by the narrow Indian Siliguri Corridor and from Bhutan by the Indian state of Sikkim. Kathmandu is the nation's capital and largest metropolis.
The mountainous north of Nepal has eight of the world's ten tallest mountains, including the highest point on Earth, Mount Everest, called Sagarmāthā in the Nepali language. More than 240 peaks over 20,000 ft (6,096 m) above sea level are located in Nepal. The southern Terai region is fertile and humid.
Hinduism is practiced by about 81.3% of Nepalis, the highest percentage of any country. Buddhism is linked historically with Nepal and is practiced by 9% of its people, followed by Islam at 4.4%, Kiratism 3.1%, Christianity 1.4%, and animism 0.4%.[12] A large portion of the population, especially in the hill region, may identify themselves as both Hindu and Buddhist, which can be attributed to the syncretic nature of both faiths in Nepal.
A monarchy throughout most of its history, Nepal was ruled by the Shah dynasty of kings from 1768—when Prithvi Narayan Shah unified its many small kingdoms—until 2008. A decade-long Civil War involving the Communist Party of Nepal (Maoist), followed by weeks of mass protests by all major political parties, led to the 12-point agreement of 22 November 2005. The ensuing elections for the 1st Nepalese Constituent Assembly on 28 May 2008 overwhelmingly favored the abolition of the monarchy and the establishment of a federal multiparty representative democratic republic. Despite continuing political challenges, this framework remains in place, with the 2nd Nepalese Constituent Assembly elected in 2013 in an effort to create a new constitution.
Nepal is a developing country with a low income economy, ranking 145th of 187 countries on the Human Development Index (HDI) in 2014. It continues to struggle with high levels of hunger and poverty. Despite these challenges, the country has been making steady progress, with the government making a commitment to graduate the nation from least developed country status by 2022


 http://en.wikipedia.org/wiki/Nepal
 http://en.wikipedia.org/wiki/History_of_Nepal

maandag 27 april 2015

20150427 - dordrecht




Dordrecht, colloquially Dordt, historically in English named Dordt, is a city and municipality in the western Netherlands, located in the province of South Holland. It is the fourth largest city of the province, having a population of 118,782 in 2014. The municipality covers the entire Dordrecht Island, also often called Het Eiland van Dordt (the Island of Dordt), bordered by the rivers Oude Maas, Beneden Merwede, Nieuwe Merwede, Hollands Diep, and Dordtsche Kil. Dordrecht is the largest and most important city in the Drechtsteden and is also part of the Randstad, the main conurbation in the Netherlands. Dordrecht is the oldest city in the Holland area and has a rich history and culture.

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Dordrecht is enclosed by rivers. The city has more than a thousand monuments, historical inner-harbors and a great vibe. A walking route, named ‘Rondje Dordt’, leads you along all the church ‘Grote Kerk’, the former monastery ‘Het Hof, museum ‘Huis van Gijn’ and numerous antique stores.

Highlights of Dordrecht

Dordrecht owes its wealthy past to its strategic location along three rivers, including the river Meuse. Today you can still sense these prestigious times as you walk through the city. Besides the beautiful inner-harbors, monuments and streets you should spend some time at the Dordrechts Museum. This museum has a superb collection of old masters and is often called the paintings museum. Other highlights are the former monastery ‘Het Hof’, and the amazing interior of ‘Huis van Gijn’. The latter has also won some prestigious awards.

Visit Dordrecht

The best way to discover Dordrecht is by foot, but you can also enjoy the view from water if you take a boat trip. You can also combine your visit to Dordrecht with the nearby National Park De Biesbosch. Last but not least, Dordrecht hosts one of the largest book markets of Holland and the largest Christmas market. Check at the local tourist information office (VVV) when these events take place.


 http://www.holland.com/global/tourism/article/dordrecht-7.htm
 http://en.wikipedia.org/wiki/Dordrecht

zondag 26 april 2015

20150426 - hubble (2)






Edwin Powell Hubble

The man who discovered the cosmos


  1. Edwin Powell Hubble was an American astronomer who played a crucial role in establishing the field of extragalactic astronomy and is generally regarded as one of the most important observational cosmologists of the 20th century
  2. Spouse: Grace Burke (m. 1924)
"I knew that even if I were second or third rate, it was astronomy that mattered."

This sentence, written by Edwin Hubble recalling his youth, tells us a lot about the man. A man who eventually broke the promise made to his father and followed the path dictated by his passion.
As a result of Hubble's work, our perception of mankind's place in the Universe has changed forever: humans have once again been set aside from the centre of the Universe. When scientists decided to name the Space Telescope after the founder of modern cosmology the choice could not have been more appropriate.

A promising student

Edwin Hubble was born in Missouri in 1889, the son of an insurance executive, and moved to Chicago nine years later. At his high school graduation in 1906, the principal said: "Edwin Hubble, I have watched you for four years and I have never seen you study for ten minutes." He paused, leaving young Edwin on tenterhooks a moment longer, before continuing: "Here is a scholarship for the University of Chicago."
This high school scholarship was also awarded to another student by mistake, so the money had to be halved and Edwin had to supply the rest. He paid his expenses by tutoring, working in the summer and, in his junior year, by obtaining a scholarship in physics and working as a laboratory assistant. He finally obtained a degree in Mathematics and Astronomy in 1910.

The Rhodes scholar

A tall, powerfully built young man, Hubble loved basketball and boxing, and the combination of athletic prowess and academic ability earned him a Rhodes scholarship to Oxford. There, a promise made to his dying father, who never accepted Edwin's infatuation for astronomy, led him to study law rather than science, although he also took up Literature and Spanish.
He studied Roman and English Law at Oxford and returned to the United States only in 1913. Here he passed the bar examination and practised law half-heartedly for a year in Kentucky, where his family was then living.

The beloved high school teacher and coach

He was also hired by New Albany High School (New Albany, Indiana) in the autumn of 1913 to teach Spanish, Physics and Mathematics, and to coach basketball. His popularity as a teacher is recorded in the school yearbook dedicated to him: "To our beloved teacher of Spanish and Physics, who has been a loyal friend to us in our senior year, ever willing to cheer and help us both in school and on the field, we, the class of 1914, lovingly dedicate this book."
When the school term ended in May 1914, Hubble decided to pursue his first passion and so returned to university as a graduate student to study more astronomy.

A new era for astronomy begins

The famous British astrophysicist Stephen Hawking wrote in his book A Brief History of Time that Hubble's "discovery that the Universe is expanding was one of the great intellectual revolutions of the 20th century." Who could have guessed such a future for Edwin when he began his PhD in Astronomy at Chicago University in 1914?

War postpones Hubble's astronomical debut

Early in 1917, while still finishing the work for his doctorate, Hubble was invited by George Ellery Hale, founder of the Mount Wilson Observatory, in Pasadena, California, to join the staff there. This was a great opportunity, but it came in April of a dreadful year. After sitting up all night to finish his PhD thesis and taking the oral examination the next morning, Hubble enlisted in the infantry and telegraphed Hale:"Regret cannot accept your invitation. Am off to the war."
He served in France and next returned to the United States in 1919. He went immediately to the Mount Wilson Observatory, where the newly discharged Major Hubble, as he invariably introduced himself, arrived, still in uniform, but ready to start observing.
Hubble was lucky enough to be in the right place at the right time. Mount Wilson was the centre of observational work underpinning the new astrophysics, later called cosmology, and the 100-inch Hooker Telescope, then the most powerful on Earth, had just been completed and installed after nearly a decade of work.
On the mountain Hubble encountered his greatest scientific rival, Harlow Shapley, who had already made his reputation by measuring the size of the Milky Way, our own Galaxy. Shapley had used a method pioneered by Henrietta Leavitt at the Harvard College Observatory that relied on the behaviour of standardised light variations from bright stars called Cepheid variables to establish the distance of an object.
His result of 300 000 light-years for the width of the galaxy was roughly 10 times the previously accepted value. However Shapley, like most astronomers of the time, still thought that the Milky Way was all there was to the Universe. Despite a suggestion first made by William Herschel in the 18th century, he shared the accepted view that all nebulae were relatively nearby objects and merely patches of dust and gas in the sky.

The turning point

Hubble had to spend many bitterly cold nights sitting at the powerful Hooker telescope before he could prove Shapley wrong. In October 1923 he spotted what he first thought was a nova star flaring up dramatically in the M31 "nebula" in the constellation of Andromeda. After careful examination of photographic plates of the same area taken previously by other astronomers, including Shapley, he realised that it was a Cepheid star. Hubble used Shapley's method to measure the distance to the new Cepheid. He could then place M31 a million light-years away - far outside the Milky Way and thus itself a galaxy containing millions of stars. The known Universe had expanded dramatically that day and - in a sense - the Cosmos itself had been discovered!
Even The New York Times of the day realised the importance of the discovery: "Finds spiral nebulae are stellar systems. Doctor Hubbel [sic] confirms view that they are 'island universes' similar to our own."

Just the beginning

This discovery was of great importance to the astronomical world, but Hubble's greatest moment was yet to come. He began to classify all the known nebulae and to measure their velocities from the spectra of their emitted light. In 1929 he made another startling find - all galaxies seemed to be receding from us with velocities that increased in proportion to their distance from us - a relationship now known as Hubble's Law.
This discovery was a tremendous breakthrough for the astronomy of that time as it overturned the conventional view of a static Universe and showed that the Universe itself was expanding. More than a decade earlier, Einstein himself had bowed to the observational wisdom of the day and corrected his equations, which had originally predicted an expanding Universe. Now Hubble had demonstrated that Einstein was right in the first place.
The now elderly, world-famous physicist went specially to visit Hubble at Mount Wilson to express his gratitude. He called the original change of his beloved equations "the greatest blunder of my life."

Another war stops Hubble again

Hubble worked on indefatigably at Mount Wilson until the summer of 1942, when he left to serve in World War II. He was awarded the Medal of Merit in 1946. Finally, he went back to his Observatory. His last great contribution to astronomy was a central role in the design and construction of the Hale 200-inch Telescope on Palomar Mountain. Four times as powerful as the Hooker, the Hale would be the largest telescope on Earth for decades. In 1949, he was honoured by being allowed the first use of the telescope.

No Nobel Prize for an astronomer

During his life, Hubble had tried to obtain the Nobel Prize, even hiring a publicity agent to promote his cause in the late 1940s, but all the effort was in vain as there was no category for astronomy. Hubble died in 1953 while preparing for several nights of observations, his last great ambition unfulfilled.
He would have been thrilled had he known that the Space Telescope is named after him, so that astronomers can continue to "hope to find something we had not expected", as he said in 1948 during a BBC broadcast in London.


 http://www.spacetelescope.org/about/history/the_man_behind_the_name/

zaterdag 25 april 2015

20150425 - hubble


No home banner image


Celebrating 25 years of the NASA/ESA Hubble Space Telescope

On the 24 April 2015 the NASA/ESA Hubble Space Telescope will celebrate 25 years since its launch.
During the 1970s, NASA and ESA began planning for a space telescope that could transcend the blurring effects of the atmosphere and take clearer images of the Universe than ever before. In 1990 the idea finally became a reality and, despite a flaw in the main mirror which was quite swiftly corrected, Hubble has since far exceeded expectations.
It has delved deeper into the early years of the Universe than was ever thought possible, played a critical part in the discovery that the expansion of the Universe is accelerating and probed the atmospheres of planets around distant stars.
To commemorate this quarter century of success in engineering, science and culture ESA/Hubble will run a series of projects to involve the public in the celebrations. Details of these projects will appear below as the projects commence.
For more information on events, activities and news for the 25th anniversary visit the Hubble 25 website .



 http://www.spacetelescope.org/projects/Hubble25/

vrijdag 24 april 2015

20150424 - cancer genomics




Cancer Genomics: Data, Data and more Data

By Clare Garvey
Posted:


PLOS Medicine’s Senior Research Editor, Clare Garvey, recently caught up with Francis Ouellette, the Associate Director of Informatics and Biocomputing at the Ontario Institute for Cancer Research (OICR) to find out about progress in cancer genomics, the issues surrounding the tsunami of data that has been generated by The Cancer Genome Atlas Project (TCGA) and the International Cancer Genome Consortium (ICGC), and how developments may impact clinical care for cancer patients.



 http://blogs.plos.org/speakingofmedicine/2015/04/17/interview-francis-ouellette/

donderdag 23 april 2015

20150423 - climate change





PLOS
  • Published: December 3, 2013
  • DOI: 10.1371/journal.pone.0081648
  • Published in PLOS ONE 

    Abstract

    We assess climate impacts of global warming using ongoing observations and paleoclimate data. We use Earth’s measured energy imbalance, paleoclimate data, and simple representations of the global carbon cycle and temperature to define emission reductions needed to stabilize climate and avoid potentially disastrous impacts on today’s young people, future generations, and nature. A cumulative industrial-era limit of ~500 GtC fossil fuel emissions and 100 GtC storage in the biosphere and soil would keep climate close to the Holocene range to which humanity and other species are adapted. Cumulative emissions of ~1000 GtC, sometimes associated with 2°C global warming, would spur “slow” feedbacks and eventual warming of 3–4°C with disastrous consequences. Rapid emissions reduction is required to restore Earth’s energy balance and avoid ocean heat uptake that would practically guarantee irreversible effects. Continuation of high fossil fuel emissions, given current knowledge of the consequences, would be an act of extraordinary witting intergenerational injustice. Responsible policymaking requires a rising price on carbon emissions that would preclude emissions from most remaining coal and unconventional fossil fuels and phase down emissions from conventional fossil fuels.


     http://journals.plos.org/ploscollections/article?id=10.1371/journal.pone.0081648

woensdag 22 april 2015

20150422 - belgian pralines






Praline Two subvarieties of this confectionary exist:
  • French pralines: a combination of almonds and caramelized sugar, harder than American praline.
  • American pralines: a combination of syrup and pecans, hazlenuts or almonds with milk or cream, therefore softer and creamier, resembling fudge.
Two other uses exist:
  • Praline cookie denotes a chocolate cookie containing ground nuts.
  • Belgian pralines are at the most luxury end of Belgian chocolate and consist of a chocolate shell with a softer, sometimes liquid, filling, the most traditional filling of which is any one of a number of subtly different hazlenut, almonds, sugar, syrup and often milk-based pastes which with distinctive types of high-fat, low-melting point chocolate forms a main product of many Belgian chocolatiers.

Belgian soft-centre pralines 

Pralines from Belgium are also known as "(soft-center) Belgian chocolates", "Belgian chocolate fondants" and the somewhat vague "chocolate bonbons" in English-speaking countries — cases of chocolate (if from Belgium usually a quality, branded lower-melting point Belgian chocolate) filled with a soft centre. They were first introduced by Jean Neuhaus II, a Belgian chocolatier, in 1912.

There have always been many types and shapes: nearly always containing a chocolate shell with a softer filling. Confusion can arise over the use of the word praline in Belgium as it may refer to filled chocolates in general known as pralines and it may also refer to a traditional praline filling common in Europe (caramelised hazelnuts (noisettes) or almonds (amandes) ground into a paste, sometimes with whey powder, condensed milk or cream) described as praliné /prɑːln/. Belgian chocolates (pralines) are not limited to the traditional praliné filling and often include nuts, marzipan, salted caramel, coffee, a spirit, cream liqueur, cherry or a chocolate blend that contrasts with the outer shell. They are often sold in stylised boxes in the form of a gift box. The largest manufacturers are Neuhaus, Godiva, Leonidas, and Guylian.


 http://en.wikipedia.org/wiki/Praline

dinsdag 21 april 2015

20150421 - Holland America Line




Holland America Line is a American owned cruise line based in Seattle. It has been owned by Carnival Corporation & plc since 1989.
From 1873 to 1989, it was a Dutch shipping line, a passenger line, a cargo line and a cruise line operating primarily between the Netherlands and North America. As part of this rich legacy, it was instrumental in the transport of many hundreds of thousands of immigrants from the Netherlands to North America.

History as a Dutch shipping and passenger line (1873–1989)

Holland America Line was founded in 1873 as the Nederlandsch-Amerikaansche Stoomvaart Maatschappij (Dutch-American Steamship Company), a shipping and passenger line. It was headquartered in Rotterdam, The Netherlands, and provided service to the Americas. The company was formed as a result of the reorganization of an earlier company, Plate, Reuchlin & Co. The company's first ship was the original Rotterdam, which sailed its 15-day maiden voyage from the Netherlands to New York City on October 15, 1872. Other services were started to other new world ports, including Hoboken, Baltimore and South America. Cargo service to New York started in 1899.
During the first 25 years the company carried 400,000 people from Europe to the Americas. Other North American ports were added during the early 20th century.
Though transportation and shipping were the primary sources of revenue, in 1895 HAL offered its first vacation cruise. Its second vacation cruise, from New York to Palestine, was first offered in 1910.
One notable ship was the elegant 36,000 gross ton SS Nieuw Amsterdam of 1937, it and the RMS Queen Mary being the only two liners built in the 1930s to make a profit.
At the start of the Second World War, HAL had 25 ships; nine remained at war's end. At the beginning of the war, the Westernland acquired from the Red Star Line in 1939, berthed at Falmouth, England, became the seat of the Dutch government. The Nieuw Amsterdam sailed half a million miles transporting 400,000 military personnel. After the war, the cruise line was instrumental in transporting a massive wave of immigrants from the Netherlands to Canada and elsewhere.
Another notable ship during the post-war period was the SS Rotterdam of 1959, one of the first North Atlantic ships equipped for two-class transatlantic crossing and one-class luxury cruising.
By the late 1960s, the golden era of transatlantic passenger ships had been ended by the introduction of air travel. HAL ended transatlantic service during the early 1970s, leaving the North Atlantic passenger trade for Cunard's RMS Queen Elizabeth 2.
In 1973 it sold its cargo shipping division.
It ceased operating as a Dutch line in 1989, when it was purchased by Carnival for 1.2 billion guilders (530 million euros). The proceeds were put into an investment company (HAL Investments), the majority of which is owned by the van der Vorm family.


 http://en.wikipedia.org/wiki/Holland_America_Line

maandag 20 april 2015

20150420 - meditation



Meditation for Beginners: 

20 Practical Tips for Quieting the Mind

https://www.youtube.com/watch?v=wPB8Lt2gT5k

Meditation is the art of focusing 100% of your attention in one area. The practice comes with a myriad of well-publicized health benefits including increased concentration, decreased anxiety, and a general feeling of happiness.
Although a great number of people try meditation at some point in their lives, a small percentage actually stick with it for the long-term. This is unfortunate, and a possible reason is that many beginners do not begin with a mindset needed to make the practice sustainable.
The purpose of this article is to provide 20 practical recommendations to help beginners get past the initial hurdles and integrate meditation over the long term:
1) Make it a formal practice. You will only get to the next level in meditation by setting aside specific time (preferably two times a day) to be still.
2) Start with the breath. Breathing deep slows the heart rate, relaxes the muscles, focuses the mind and is an ideal way to begin practice.
3) Stretch first. Stretching loosens the muscles and tendons allowing you to sit (or lie) more comfortably. Additionally, stretching starts the process of “going inward” and brings added attention to the body.
4) Meditate with Purpose. Beginners must understand that meditation is an ACTIVE process. The art of focusing your attention to a single point is hard work, and you have to be purposefully engaged!
5) Notice frustration creep up on you. This is very common for beginners as we think “hey, what am I doing here” or “why can’t I just quiet my damn mind already”. When this happens, really focus in on your breath and let the frustrated feelings go.



 http://zenhabits.net/meditation-for-beginners-20-practical-tips-for-quieting-the-mind/

zondag 19 april 2015

20150419 - genetic engineering


Genetic Engineering Debate: 

Are There Lines We Shouldn't Cross?

By Jessica Erickson

The relationship between ethics and science has had a long, complicated history.  Although the atrocious Nazi experiments performed in the name of science are 70 years behind us, science continues to cross new boundaries. An advancing science that is currently forcing society to re-evaluate ethical boundaries is genetic engineering.
Genetic engineering (also called genetic modification) is the direct manipulation of an organism’s genome using modern DNA technology. So far, the study and application of genetic engineering has been much slower, more complex, and less effective in humans than in plants and animals. Whereas animal cloning has been somewhat successful since Dolly’s famed birth in 1996 (and more recently the capacity to clone your beloved dog for $100,000), the ability to successfully clone humans has proved difficult scientifically and highly controversial ethically.
Genetically modified plants and animals have led to significant benefits, such as herbicide resistant crops and fast-growing animals.  At the same time, this technology has created major ethical concerns relating to the perceived “unnaturalness” of changing a living organism and a fear that scientists are “playing God” through their alterations of an original being. In humans, researchers have predicted that gene therapy will not only allow us to treat and prevent debilitating diseases (an elusive goal for scientists over the past 20 years), but also enhance or improve normal human traits.
Should we have the right to enhance our muscles, memory and moods through genetic modification? At what point should genetic engineering be forced to draw a line? The answer to this is tricky.
Although still mainly limited to science fiction, genetic enhancement in humans is a controversial issue. The largely publicized topic of “designer babies,” for example, leads to debates over whether it is significantly worse for parents to try and give their children the best opportunities by selecting certain genes using in vitro fertilization (IVF) and pre-implantation diagnosis (PGD), versus hiring sperm and egg donors with coveted genetic traits.  Personally, I find it easier to agree that disease prevention and treatment are beneficial goals of genetic engineering in humans, than for me to accept human enhancement as a morally acceptable goal.
However, we do not yet grasp the full extent of what genetic engineering means for human development. What we deem “acceptable” or “unacceptable” in the world we currently inhabit with our presently available science and technology could easily change as scientific capacity advances. Our notion of what is right or wrong and even our fundamental understanding of what it means to be a “normal” human being have continually changed through scientific progress. Once, the only option for biologically influencing a person’s development was through mate selection. Today, scientific advancements such as prenatal screening technologies, in vitro fertilization, and pharmaceuticals targeting cognitive and emotional functioning allow parents to avoid certain birth defects, select for sex, and improve their child’s cognitive ability and moods.
Instead of drawing an imaginary “do not cross” line or moral boundary for genetic engineering in humans, we should emphasize the need for continuous negotiation with moral notions and beliefs with the purpose of directing and influencing policy as a result of this mutual interaction.  Organizations such as the Stanford Center for Integration of Research on Genetics and Ethics (CIRGE) are examples of this approach.  CIRGE is one of six interdisciplinary Centers of Excellence in Ethical, Legal and Social Implications (ELSI) Research (CEERs) created by the National Human Genome Research Institute (NHGRI) “to proactively identify and deliberate ethical, legal and social issues in current and emerging genetic research.”
This strategy of anticipatory ethics advocates that “ethics” should accompany and monitor advancing technology rather than simply react to it. Instead of demanding immediate draconian controls, a vigorous concurrent moral debate should occur to provide a framework within which genetic engineering can progress.  Good research-based policy decisions should result from the continuous and simultaneous review of advancements in genetic engineering as studied from an analysis of their ethical and social consequences.  Science should raise ethical issues and ethical issues should influence science, thus creating a healthy tension between genetic engineering research and ethical checks and boundaries, and hopefully avoiding potential harmful consequences of unmonitored science through this balanced approach.

 http://mic.com/articles/3971/genetic-engineering-debate-are-there-lines-we-shouldn-t-cross

zaterdag 18 april 2015

20150418 - body mass index





BMI (Body Mass Index) is important as it is widely regarded that your chances of having a longer and healthier life are improved if you have a healthy BMI.

If your BMI is high, you may also have an increased risk of developing type 2 diabetes, as well as other metabolic diseases such as hypertension, high cholesterol and heart disease.

Relationship of BMI with diabetes

Research shows strong links between a high BMI and type 2 diabetes, with the risk of the condition rising with each increase in BMI.

Data studies

A review of over 12,000 people in the United States, published in 2014, showed that people with a BMI of 25-29.9 had a 50% increased risk of diabetes compared to people with a BMI of 18.5-24.9.
Obesity was linked with increased rates of diabetes between 2.5 and 5 times higher than people of normal weight, with the highest risk being those with a BMI of 40 or more. The results found:
  • BMI 25-29.9 (overweight): 50% higher type 2 diabetes risk
  • BMI 30-34.9 (obesity class I): 2.5 times more likely to get diabetes
  • BMI 35-39.9 (obesity class II): 3.6 times more likely to get diabetes
  • BMI 40+ (obesity class III): 5.1 times more likely to develop diabetes

BMI and other long term health risks

The World Health Organisation (WHO) lists a high BMI as a major risk factor for heart disease, stroke, bone and joint problems including osteoarthritis and a number of cancers, including breast, colon and endometrial cancer.
Large scale surveys, such as SHIELD (Study to Help Improve Early evaluation and management of risk factors Leading to Diabetes), conducted in the USA in 2004, show clear associations between a raised BMI and increased risks of hypertension (high blood pressure) and dyslipidaemia (high cholesterol) in addition to type 2 diabetes.

How health care professionals use BMI Formula

BMI is checked regularly by doctors to assess if people are at a healthy weight, with advice dependent on what your BMI reading is:
  • Below 18.5 BMI: advised to eat more to gain weight within a normal range
  • Between 18.5-25: you are of normal weight
  • Between 25-30 BMI: advised to lose weight and exercise more to reduce risk of obesity
  • Over 30 BMI: specific diets and weight loss programmes suggested, as well as referral to a dietitian.

Diet and weight loss programmes

If you have a BMI over 30, you may be referred to join a weight loss group or given exercise on prescription.
Weight loss groups may be commercial slimming groups or those provided by the NHS. Exercise on prescription involves being referred to receive a number of sessions of physical activity with a health team or a qualified trainer.
Your health team should provide you with guidance on changing eating habits and exercising efficiently to achieve the best possible benefits.
Some people may be considered to go on a very low calorie diet of 800kcal per day. This requires medical supervision and may not be advisable in certain groups of people.

Bariatric surgery

In the UK, you may be considered for bariatric surgery in the following cases:
  • Having a BMI over 35
  • Having a BMI over 30 and having recently been diagnosed with type 2 diabetes
People of Asian origin may be considered for weight loss surgery if they have been diagnosed with type 2 diabetes within lower BMI brackets than 30.
Follow-up appointments will be carried out to ensure your diet, medication and level of support is appropriate to prevent weight being regained.

vrijdag 17 april 2015

20150417 - gccs

Global Conference on CyberSpace 2015





On 16-17 April 2015 the Netherlands will host the fourth Global Conference on Cyberspace (GCCS) in The Hague. Representatives from governments, private sector and civil society will gather in order to promote practical cooperation in cyberspace, to enhance cyber capacity building, and to discuss norms for responsible behaviour in cyberspace. GCCS2015 will take place in the World Forum in The Hague.

Cyberspace unlocks enormous potential gains in wealth and welfare in an ever more connected society.
To be able to continue to benefit from the internet as an enabler for development and innovation, we must ensure the following:
  • maintain and develop safe ways to do business online
  • protect online freedom and combat crime related activities
  • promote international stability in the cyber domain
The Global Conference on Cyberspace 2015 will bring stakeholders from various backgrounds together to discuss these challenges in a comprehensive manner. Only by working together globally can we guarantee that the most crucial piece of societal infrastructure of the 21st century will remain free, open and secure. In that way the full potential of the cyber domain can be used.

Key objectives

1. Support practical cooperation in cyberspace

The Conference will seek to jointly develop practical worldwide responses to urgent challenges. Like tackling and prosecuting cybercrime, improving CERT cooperation and taking technical measures to safeguard the internet.

2. Promote capacity building and knowledge exchange in cyberspace

The Conference will seek to launch a Global Cyber Resilience Initiative where all partners can share their cyber expertise and work together.

3. Discuss norms for responsible behavior in cyberspace

The Conference will seek to build on the Seoul Framework to promote consensus on norms related to ensuring cybersecurity, combating cybercrime and dealing with threats to international stability. And promote international discussion on human rights and privacy on the internet.


 https://www.facebook.com/gccs2015
 http://www.gccs-unplugged.net/

 https://www.ncsc.nl/actueel/nieuwsberichten/gccs2015-one-conference-en-cyber-security-week-den-haag.html

donderdag 16 april 2015

20150416 - tattoos





Bad news for tattoos - 

Many tattoo inks contain dangerous heavy metals, phthalates and hydrocarbons

Tuesday, January 21, 2014 by: Tony Isaacs


Would you knowingly inject dangerous heavy metals such as mercury, lead and arsenic into your body? How about carcinogens and endocrine disrupters such as phthalates and hydrocarbons? Chances are that is exactly what you have done if you have a tattoo, because those substances are commonly found in the inks used for tattoos.

Dangerous Heavy Metals Found in Tattoo Ink

Many tattoo inks contain heavy metals that have been linked to a large number of health problems, including cancer and neurodegenerative diseases. Among the most concerning metals found in tattoos are mercury, lead, antimony, beryllium, cadmium and arsenic.

Mercury is a neurotoxin, meaning it has detrimental effects on the nervous system. It can damage the brain and lead to physical and emotional disorders.
Lead interferes with a variety of body processes and is toxic to many of the body's organs and tissues, including the heart, bones, intestines, kidneys, nervous and reproductive systems. In severe cases, lead poisoning symptoms can include seizures, coma and death. Other symptoms commonly associated with lead exposure include abdominal pain, confusion, headache, anemia and irritability.

Beryllium is listed as a Class A EPA carcinogen. Exposure can cause Chronic Beryllium Disease, an often fatal lung disease.

Cadmium is a heavy metal that poses severe risks to human health, including kidney, bone, and pulmonary damage.

Arsenic is a known carcinogen, and new studies have also found that exposure to higher levels of arsenic leads to genetic damage.

Antimony exposure can cause irritation of the eyes, skin and lungs. As the exposure continues, more serious problems may occur, such as lung diseases, heart problems, diarrhea, severe vomiting and stomach ulcers.




http://www.naturalnews.com/043593_tattoos_heavy_metals_poisoning.html

woensdag 15 april 2015

20150415 - rainbow loom






Rainbow Loom is a plastic loom used to weave colorful rubber bands into bracelets and charms. It was invented in 2011 by Cheong Choon Ng in Novi, Michigan. As of September 2014, Ng's company had sold over 8 million units worldwide, along with 40 million packets of rubber bands. Ng has sued the makers of rival products FunLoom and Cra-Z-Loom for patent infringement.


 The Rainbow Loom is a plastic pillboard measuring 2 inches (51 mm) by 8 inches (200 mm). It has push pin-type pegs over which small, coloured rubber bands are looped and pulled by a rainbow loom crochet hook. The resulting looped knots, known as Brunnian links, can be assembled on the loom into bracelets and other shapes. The Rainbow Loom kit includes a pegboard, a rainbow loom hook, 24 special C-shaped clips to connect both ends of the bracelet, and 600 small rubber bands in assorted colours.


dinsdag 14 april 2015

20150414 - magnolia



Magnolia

 


Magnolia is a large genus of about 210 flowering plant species in the subfamily Magnolioideae of the family Magnoliaceae. It is named after French botanist Pierre Magnol.
Magnolia is an ancient genus. Appearing before bees did, the flowers are theorized to have evolved to encourage pollination by beetles. To avoid damage from pollinating beetles, the carpels of Magnolia flowers are extremely tough. Fossilised specimens of M. acuminata have been found dating to 20 million years ago, and of plants identifiably belonging to the Magnoliaceae date to 95 million years ago. Another aspect of Magnolia considered to represent an ancestral state is the flower bud is enclosed in a bract rather than in sepals; the perianth parts are undifferentiated and called tepals rather than distinct sepals and petals. Magnolia shares the tepal characteristic with several other flowering plants near the base of the flowering plant lineage such as Amborella and Nymphaea (as well as with many more recently derived plants such as Lilium).
The natural range of Magnolia species is a disjunct distribution, with a main centre in east and southeast Asia and a secondary centre in eastern North America, Central America, the West Indies, and some species in South America.


 http://en.wikipedia.org/wiki/Magnolia

maandag 13 april 2015

20150413 - marathon




The marathon is a long-distance running event with an official distance of 42.195 kilometres (26 miles and 385 yards)] usually run as a road race. The event was instituted in commemoration of the fabled run of the Greek soldier Pheidippides, a messenger from the Battle of Marathon to Athens.
The marathon was one of the original modern Olympic events in 1896, though the distance did not become standardized until 1921. More than 500 marathons are held throughout the world each year, with the vast majority of competitors being recreational athletes as larger marathons can have tens of thousands of participants


 http://en.wikipedia.org/wiki/Marathon
 http://www.nnmarathonrotterdam.org/event/course/
 http://www.nnmarathonrotterdam.nl/home

zondag 12 april 2015

20150412 - garbage patch

Plastic debris in the sea, in the ocean




The Great Pacific Garbage Patch is a collection of marine debris in the North Pacific Ocean. Marine debris is litter that ends up in oceans, seas, and other large bodies of water. 


 
The Great Pacific Garbage Patch, also known as the Pacific trash vortex, spans waters from the West Coast of North America to Japan. The patch is actually comprised of the Western Garbage Patch, located near Japan, and the Eastern Garbage Patch, located between the U.S. states of Hawaii and California. 
 
These areas of spinning debris are linked together by the North Pacific Subtropical Convergence Zone, located a few hundred kilometers north of Hawaii. This convergence zone is where warm water from the South Pacific meets up with cooler water from the Arctic. The zone acts like a highway that moves debris from one patch to another.

The entire Great Pacific Garbage Patch is bounded by the North Pacific Subtropical Gyre. An ocean gyre is a system of circular ocean currents formed by the Earth’s wind patterns and the forces created by the rotation of the planet. The North Pacific Subtropical Gyre is created by the interaction of the California, North Equatorial, Kuroshiro, and North Pacific currents. These four currents move in a clockwise direction around an area of 20 million square kilometers (7.7 million square miles).
 
The area in the center of a gyre tends to be very calm and stable. The circular motion of the gyre draws debris into this stable center, where it becomes trapped. A plastic water bottle discarded off the coast of California, for instance, takes the California Current south toward Mexico. There, it may catch the North Equatorial Current, which crosses the vast Pacific. Near the coast of Japan, the bottle may travel north on the powerful Kuroshiro Current. Finally, the bottle travels westward on the North Pacific Current. The gently rolling vortexes of the Eastern and Western Garbage Patches gradually draw in the bottle.

The amount of debris in the Great Pacific Garbage Patch accumulates because much of it is not biodegradable. Many plastics, for instance, do not wear down; they simply break into tinier and tinier pieces. 


 
For many people, the idea of a “garbage patch” conjures up images of an island of trash floating on the ocean. In reality, these patches are almost entirely made up of tiny bits of plastic, called microplastics. Microplastics can’t always be seen by the naked eye. Even satellite imagery doesn’t show a giant patch of garbage. The microplastics of the Great Pacific Garbage Patch can simply make the water look like a cloudy soup. This soup is intermixed with larger items, such as fishing gear and shoes.

The seafloor beneath the Great Pacific Garbage Patch may also be an underwater trash heap. Oceanographers and ecologists recently discovered that about 70% of marine debris actually sinks to the bottom of the ocean.
 
While oceanographers and climatologists predicted the existence of the Great Pacific Garbage Patch, it was a racing boat captain by the name of Charles Moore who actually discovered the trash vortex. Moore was sailing from Hawaii to California after competing in a yachting race. Crossing the North Pacific Subtropical Gyre, Moore and his crew noticed millions of pieces of plastic surrounding his ship.
 
 
 http://education.nationalgeographic.com/education/encyclopedia/great-pacific-garbage-patch/?ar_a=1