Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Wednesday, February 04, 2009

Studying the Urumea River

The article you are about to read was published at Environmental Expert:

A flood study of the Urumea River in The Basque Country

Source: DHI Water & Environment

The Urumea river catchment area which is located in the Basque Country in the northern part of Spain has historically been seriously affected by flooding. The districts most affected by the frequent inundations are the municipalities of San Sebastian, Astigarraga and Hernani. As recently as October 2008 a minor flood was experienced in Hernani. In 2006 and 2004 major flood events with significant damage occurred.

To improve this situation, the Department of Environmental Affairs of the Basque government will in the coming years invest 60 million € in construction of 18 preventive measures. The overall objective of the project is to 'Let the river breathe' and consequently reduce the frequency of flooding of the Urumea River.

The preventive measures include substitution of a number of exciting bridges, which at the moment are obstructing the river flow, establishment of by-pass channels, enhancements of the riverbed in defined sections, and creation of public recreational areas. All actions amid at increasing the flow capacity of the river, while respecting the environment and natural flow path of the river.

In order to investigate in detail these 18 predefined interventions, DHI was contracted to set up a 2D model (MIKE FLOOD) of the 15 km stretch from Hernani in the south to San Sebastian in the north.

In the First phase of the study a model of the actual situation was established, incorporating all relevant bridges and hydraulic structures. The model was calibrated against observed data from the flood event that occurred in the winter of 2004 and it was verified against the smaller flood event in 2006.

Following the calibration/verification the model was executed for the three return periods T=10, 100, and 500 years.

In the second phase the 18 corrective measures was incorporated into the model, and simulations of the T=10, 100, and 500 years return periods was carried out.

The projects design return period was set to T=500 year, which means that the planed flood protection measures should be capable of withstanding a flood that statistically should happen once every 500 years. (Which could be tomorrow!)

The result of the 500 year event simulation is shown below: The green color shows the extent of the flood in the actual situation, while the blue color represents the future situation with the improvement in place.

Comparison of the simulation results of the actual situation and the future situation when all the improvements are in place.

It is obvious that the flood prevention measures will have the desired effect; - the simulated 500 year flooding will not extend beyond the defined floodplain (yellow line).

The third phase of the study consisted in visualization the results as video animation, which was used for the Basque government press releases and information material. The videos were generated partly by incorporating the results in Google Earth using the DHI GE plug-in and partly by using the Result viewer.

Notes regarding the model configuration.
The bathymetry/topography of the floodplains was defined using available LIDAR data (1x1m), while the description of the riverbed was based on HEC-RAS cross section data. The HEC RAS data was first converted into a MIKE11 model, which then was used to create a bathymetry specifically for the riverbed. This riverbed bathymetry was then “burnt” into the floodplain bathymetry, and thereby generating a bathymetry that integrates the LIDAR data with the detailed data from the HEC RAS model.

Fifteen bridges were incorporated into the model. The description of the flow through (and over) the bridges was accomplished either by directly incorporating the bridge pillars into the bathymetry or by modeling the bridges in MIKE11 and then linking then dynamically to the 2D model via MIKEFLOOD. The decision on which one of the two methods to apply was taken based on the physical dimensions and the design of each bridge.

The model was calibrated against observed data from the flood event that occurred in the winter of 2004 and it was verified against the smaller flood event in 2006.

The model displayed an excellent correspondence with the observed data, except in the lower part of the river. This inconsistency was suspected to derivate from erosion of riverbed that will occur in the real life situation. Meaning that, the concrete erosion of the riverbed material will increase the rivers flow capacity and thereby function as natural flood prevention measure.

The phenomenon was investigated a bit further by use of a simple relation between the calculated maximum water velocity and the erosion depth. The figure below shows a specific river cross-section without erosion (the brown line) and with erosion (grey line). The red line represents the flow velocity.

The river cross sections with sedimentation and without sedimentation.

The results of the two simulations for the 2004 event are shown below, - without erosion to the left and with erosion to the right-. As it can be observed, the situation without considering erosion exhibits a much larger inundation than the situation where the erosion is taken into consideration.

If we compare the simulated flood maps with the actual flood event of 2004, the simulation with erosion (right) correspond almost perfectly to what was observed during the flood, while the simulation without, overestimates the floods.

Results of the simulations of the 2004 event: Left: without erosion, right: with erosion.

The conclusion of the analysis was that the suspicion is largely supported by the modeling results, but considering the very simple erosion description applied, the phenomenon should be investigated more thoroughly using real sediment data and a more sophisticated model 3 dimensional model (MIKE 3 FM).

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Thursday, January 08, 2009

Research on Conservation of Historic Sites

The correct conservation of sites with a historic value is of great importance, this is why I wanted to reproduce this article published at Basque Research:

Sánchez Beitia: ‹‹One has to know and understand heritage sites before embarking on any intervention››

Santiago Sánchez Beitia is a doctor in Physics and teaches first and second years and the PhD course in the School of Architecture at the University of the Basque Country (UPV/EHU). The research team he leads is pioneer in the analysis of the state of conservation of heritage sites, having adapted techniques from other spheres of study to this end.

Dr Sánchez Beitia has been working on the analysis of the state of conservation of archaeological elements at heritage sites since 1991. “One has to know and understand the monument from a structural perspective before embarking on any intervention. The construction has to be inspected, examined and listened to – but techniques are needed for this”, he explained. The analysis of the state of conservation aims to deduce what the loads supporting the construction are, the structural changes that have taken place over time and, moreover, non-structural problems — dampness, degradation of materials, movements of earth, etc. “We analyse buildings, walls, historical sites, etc.” he explained. To this end, they have adapted techniques and ways of analysing developed from very different fields than that under study.

The Hole-Drilling method

The team led by Mr Sánchez Beitia stands out for having adapted the Hole Drilling method — used for measuring stresses and deformations — to the study of architectural heritage sites. “This method enables us to find out the exact load bearing on a support structure, such as pillars, buttresses, retaining walls, etc., while affecting its physical integrity in the least possible way, as it dramatically improves performance compared to previous, more destructive, techniques”, explained the research worker.

The Hole Drilling method involves making a small orifice — just 36 millimetres in diameter and 36 millimetres deep — in the stone, using a drill onto which a series of feelers is fixed. “These feelers record the displacements – in the order of micros — that take place around the orifice. The analysis of the data obtained enables us to calculate the stresses on or the forces supporting the pillar”, explained Dr Sánchez Beitia. The application of this method is recognised worldwide and Mr Sánchez Beitia’s team has published a number of articles on the topic, in collaboration with other universities.

From Berlin to Cairo

Amongst elements studied by Mr Santiago Sánchez Beitia and his team are the Mayor de Comillas Seminary, the pillars of Santa María del Mar, the Church of Santa Maria del Pi and the Gothic Cathedral of Barcelona — the three gothic representations in the Catalan city; the Cathedral of Tarazona, the Casa Botines or the flying buttresses of the Cathedral in Palma de Mallorca. Outside the Spanish state, the Church of Saint Jacobs in Louvaine, the basement floor of the Altes Museum in Berlin or the Sultán al-Ghawri aqueduct in Cairo. “We publish studies with universities from other countries, which brings an internationalisation to what is being investigated at the School of Architecture at the Donostia-San Sebastian campus of the UPV/EHU”, explained the researcher.

Although a lot of work is undertaken outside the Autonomous Community of the Basque Country, they also carry out analyses here. “We were the first to use this technique in the Cathedral of Santa María in the Basque capital city of Vitoria-Gasteiz, together with Giorgio Croci”, he stated. Moreover, they have examined the walls of Hondarribia in the neighbouring province of Gipuzkoa, and will shortly start on the analysis of their state of conservation, and on the consolidation of and intervention in the monastic site at Sasiola in Deba, in the same province.

Conservation of Sasiola

“The current state of Sasiola would make you cry”, complained Dr Sánchez Beitia. “Two of the vaults have caved in and the third is full of cracks”. Luckily, the situation of this heritage site is improving thanks to the fact that the Gipuzkoa provincial Government is going to carry out an intervention. “Our team is taking part in this project as a body associated to the architectural study which received the adjudication”, explained the researcher. With this project an exhaustive analysis of the state of conservation was made in order to be able to to project the future intervention at Sasiola in the most suitable manner.

Sasiola was a strategic point in Gipuzkoa until the XVIII century, its Franciscan monastery being a landmark on the coastal Camino de Santiago route and a contemporary of the better-known one in Aranzazu. It used to be an important trading centre, being a meeting of the commercial ways between Castille and the coast and the trading routes to the West Indies. With time and, above all, after the disentailment of the Church lands at Mendizábal, it fell into disuse. “There is a serious structural problem there and it could cave in at any moment”, suggested Mr Sánchez Beitia. “I go there a lot and every year I take a group of PhD students so they can get to know it”.

Scientific treatment of the analysis

Santiago Sánchez Beitia underlines the lack of awareness about these intervention processes “having to be based on a scientific treatment integrated into international scientific currents. For some time now Italy and Belgium, for example, have had a scientific treatment protocol for conservation analysis, but here, until recently, we have been on the margins”, pointed out the Mr Sánchez Beitia. He explained that in Catalonia they accept the need of this type of analysis that tries to understand the monumental site in order to subsequently draw up a project, carry it out and undertake conservation. “In Italy a scientific treatment protocol for conservation analysis is a legal obligation. Here it is at the whim of the concern or otherwise of officialdom”, he pointed out.

Thanks to this type of analysis, to the new techniques, to the research, there are less and less buildings that cannot be intervened and recovered. “The Cathedral of Tarazona has been closed for years because it was thought irrecoverable and it now has a Intervention Plan Director. There is always a solution and we are evermore imaginative”, he concluded.


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Tuesday, October 21, 2008

Light and Dark

This article comes to us thanks to Basqueresearch:

Throwing light on the dark side of the Universe

Although we may believe humans know a lot about the Universe, there are still a lot of phenomena to be explained. A team of cosmologists from the University of the Basque Country are searching for the model that best explains the evolution of the Universe.

We usually have an image of scientists who study the Universe doing so peering through a telescope. And, effectively, this is what astrophysicists de: gather data about the observable phenomena of the Universe. However, in order to interpret this data, i.e. to explain the majority of the phenomena occurring in the Universe, complicated calculations with a computer are required and which have to be based on appropriate mathematical models. This is what the Gravitation and Cosmology research team at the University of the Basque Country (UPV/EHU) is involved in: analysing models capable of explaining the evolution of the Universe.

Supernovas, witnesses to acceleration

One of the phenomena that standard models of physics have not yet been able to explain is that of the accelerated expansion of the Universe. Although Einstein proposed a static model to describe the Cosmos, today it is well known, thanks to supernovas amongst other things, that it is, in fact, expanding. Supernovas are very brilliant stellar explosions that, precisely due to this, provide useful data for exploring very distant regions of the Universe. By measuring the quantity of light that gets to us from a supernova, we can calculate its distance from us, and its colour indicates the speed at which it is distancing itself from us – the more reddish it is, the faster it is travelling. In other words, comparing two supernovas, the one that is distancing itself more slowly from us is a more bluish colour. According to observations by astrophysiscists, besides supernovas distancing themselves from us, they are doing so more and more rapidly, i.e. distancing themselves at an accelerated velocity, just like the rest of the material of the Universe.

Looking for dark energy

The energy known to exist in the Universe, however, is not sufficient to cause such acceleration. Thus, the theory most widely accepted within the scientific community is that there exists a ‘dark energy’, i.e. an energy that we cannot detect except by the gravitational force that it produces. In fact, it is believed that 73% of the energy of the Universe is dark. The dark energy debate is not just any theory: its existence has not been proved but, without it, standard models of physics would not be able to explain many of the phenomena occurring in the Universe.

So, what is dark energy exactly? What are its characteristics and have these properties always been the same or have they changed over time? These are questions, amongst others, that researchers at the Faculty of Science and Technology at the UPV/EHU, under the direction of Dr. Alexander Feinstein, are seeking to answer.

The unique characteristic of dark energy known to us is that it possesses repulsive gravitational force. That is, unlike the gravity we know on Earth, this force tends to distance stars, galaxies and the rest of the structures of the Universe from each other. This would explain why the expansion of the Universe is not constant, but accelerated. Nevertheless, this phenomenon can only be detected when achieving observationally enormous, almost unimaginable distances. This is why it is so difficult to understand the nature of dark energy.

The theory of phantom energy

To what point can the Universe expand? If this repulsive force is ever more intense, might it be infinite? This is one of the problems that the UPV/EHU researchers are focusing on. Such powerful dark energy is known as phantom energy, with which the Universe is able to expand to such an extent that the structures we know today would disappear.

This research group considers that the phantom energy model may be the most suitable to explain the accelerated expansion of the Universe. Amongst other things, the team has come to this conclusion after analysing the distribution of galaxies and the background microwave radiation which has inundated all of the Cosmos since shortly after the Big Bang. These waves travel in every direction and enable the exploration of what occurred at tremendously remote instants in time, moments close to the start of it all.

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Friday, October 17, 2008

Wave Energy in Euskal Herria

Here you have another article from Basqueresearch:

Iberdrola and Tecnalia install first prototype for producing wave-sourced energy

Iberdrola and Tecnalia Technological Corporation have installed, within the framework of the Oceantec Project, the first prototype for producing energy using the movement of waves along the coast of the Basque province of Gipuzkoa - specifically Pasaia. The initiative has a budget of 4.5 million euros and aims to launch a high performance, low-cost-wave energy capture device.

This first prototype, built on a scale of 1:4, will be ready for trials within months in order to test its performance and ensure that it does not represent a risk for the surrounding area. If the technical verifications are favourable, Iberdrola and Tecnalia anticipate developing a new, full-size device and connected to the electric grid.

This second installation in which both companies are working has a power output of 500 kilowatts (kW) and can produce enough renewable energy in one year to supply the domestic consumption of 950 homes.

The Oceantec Project will enable generation of business based on developing a renewable energy source, the creation of opportunities for industrial growth and rationalisation in the Basque Country and support for making the most of energy resources along the coast of Gipuzkoa and Bizkaia, in the Basque Country Autonomous Community.

Along these lines, it can be pointed out that a number of Basque firms have taken part in the manufacture of various systems contributing to this prototype, such as Vicinay Cadenas and Metalúrgica Marina.

Iberdrola and Tecnalia Technological Corporation have undertaken this initiative through Perseo, the promotion body for R+D+i investment in electricity launched this year. With an annual budget of 6 million euros, its main aim is the support of high value technological projects in the field of renewable energy and the environment.


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Lineages in the Cantabrian Coast

This article comes to us via the Basqueresearch page:

Study confirms importance of lineages in the Cantabrian coast of the Bay of Biscay in the European genetic map

A PhD thesis at the University of the Basque Country (UPV/EHU) involved a detailed study of the maternal lines (mitochondrial DNA) of three autochthonous human populations in the Cantabrian coast area of the Bay of Biscay and which aimed to clarify the role of these populations in the postglacial recolonisation in Europe. The study, carried out by Dr. Sergio Cardoso Martín, confirmed the importance of the proposed H1 and V lines as well as considering lines J1c, U5b and T2b as significantly important demographic landmarks in the history of the evolution of European human populations.

One of the aspects that has sparked most interest in recent years in the field of Population Genetics is the postglacial repopulation of Europe that happened about 15,000 years ago. A great amount of this research has focused on the analysis of mitochondrial DNA or maternal lines, using them as a tool to assess the impact of large human migrations in the make-up of the genetic heritage of current European populations.

With his thesis entitled, “Diversity of the mitochondrial genome in autochthonous populations in the Cantabrian coast area: Traces of postglacial recolonisation in Europe”, Dr. Sergio Cardoso Martín explored the involvement of the Franco-Cantabrian populations of the Franco-Cantabrian refuge during the postglacial recolonisation of Europe, by analysing the variability of mitochondrial DNA. The Franco-Cantabrian refuge, extending from the south-east of France to the eastern end of the Cantabrian coast, is considered to have been the main settlement for groups of humans who arrived from the north of Europe during the last glacier age, in order to escape from the extremely adverse weather conditions.

Sergio Cardoso Martín has a degree in biochemistry and is currently working in postdoctoral research. His PhD thesis was directed by Dr.Marian Martínez De Pancorbo of the Department of Zoology and Animal Cell Biology at the Faculty of Pharmacy (UPV/EHU) and of the General Genomic Research Service: DNA Bank, and by Dr. Miguel Ángel Alfonso Sánchez, of the General Genomic Research Service: DNA Bank.

Looking for genetic markers

In order to carry out this research, an analysis was undertaken of a sample made up of 194 individuals belonging to three autochthonous populations from the Cantabrian coast: from the Arratia and Goierri valleys in the Basque Country, the Valley of Baztan in Navarre and from the Pas valley in Cantabria. The HVI and HVII segments from the mitochondrial DNA control region of the 194 participating individuals were sequenced. Moreover, the complete mitochondrial DNA for 43 of the individuals was sequenced with a twin objective: to reconstruct the development of the various maternal lines from the Franco-Cantabrian refuge area and to confirm the results of the analysis of the sequenced segments. The results of this analysis enabled the classification of the individuals under study into genetic families known as haplogroups. The frequency of the various haplogroups was also analysed - their spatial distribution throughout Europe and the age of the most recent common ancestor to the various lines was estimated.

Reduced genetic diversity

Most of the 194 individuals analysed presented mitochondrial haplogroups characteristic of the European populations. Additionally, very infrequent haplogroups were found and exceptionally individuals, carriers of a haplogroup of African origin, were found in the Pas Valley.

The most frequent haplogroup amongst our samples from the Basque Country and Navarre turned out to be H, and, more concretely, the subhaplogroup H1. Also notable amongst these two populations was the high frequency of the J1c line, and particularly in the case of the north of Navarre, lines U5b and T2b also registered notable frequencies. In the Pas Valley, on the other hand, the greatest frequency corresponded to haplogroup V. The adverse climate and the orography of the terrain would have favoured a marked isolation of the populations and, in consequence, a local genetic microdifferentiation that is reflected today in the predominance of some or other maternal lines in each of the analysed populations.

Apart from presenting caracteristic haplogroups, as regards diversity, the research showed that the three autochthonous populations studied were characterised by reduced values for genetic diversity with respect to other European populations, even with respect to the rest of the Iberian Peninsula. The populations of the Basque Country and the Pas Valley, together with that of Galicia, demonstrate the lowest diversity of lines within the European context. The population of the north of Navarre showed values within the range of European populations taken as reference. The author of this study has put forward these differences in mitochondrial genome diversity as being related to the lower isolation of northern Navarre, given the powerful influences of the presence of Romans, Arabs and Jews in the region, as well as its location on the pilgrim route to Santiago de Compostela.

The comparison undertaken with other European populations showed that certain mitochondrial haplogroups presented their maximum level of frequency in the area of the Franco-Cantábrico refuge. It can be deduced from these findings that the definitory mutations of these haplogrupos could have originated in the refuge zone, or otherwise could have been transported by humans who retreated from the north of Europe, thus substantially increasing their frequency subsequently as a consequence of the genetic drift, a phenomenon known as the “founder effect”.

Genetic markers of recolonisation in Europe

The study enabled the confirmation of the importance of lines H1 and V – the most abundant amongst the sample of analysed individuals – as genetic markers of the postglacial recolonisation from the refuges of southeast Europe. Also, the study’s findings showed that the T2b, J1c and U5b haplogroups constitute “paleolithic maternal lines”, well conserved to date and with relevant frequencies in the Franco-Cantabrian refuge area. This is why it is recommendable to include the area in future studies aimed at finding genetic tracks of the postglacial repopulation of Europe and at the evaluation of the impact of this grand demographic event in the reconstruction of the genetic patrimony of contemporary European populations.


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Tuesday, October 07, 2008

Science News in Euskal Herria

This article comes to us thanks to Basqueresearch.com:

Technology, health, information science and the environment are the main topics in science news

Technology in general, health, information technology and the environment were the main topics in science news stories appearing in newspapers published in the Basque Country in the first four months of 2008. This said, the front pages of these dailies give health matters priority, followed by the environment and then technology.

These were some of the conclusions drawn from a research study and published by the Elhuyar Foundation. They analysed 11 daily newspapers (Berria, Deia, Diario de Navarra, El Correo, El Diario Vasco, Gara, Le Journal du Pays Basque, Diario de Noticias, Noticias de Gipuzkoa, Noticias de Alava and Sud Ouest) from the 1st of January to the 30th of April, 2008. The methodology of analysing the profile of science stories in the press was to gather the texts of articles published about science, technology and innovation. 6,448 texts in total were collected and a study of these led to the following conclusions:

Most texts (82%) were published in Spanish, the majority of the newspapers analysed being published in this language. The Vocento Group dailies (the El Correo Español and the Diario Vasco) published most of the articles (932 and 741 respectively); third place in this classification was the Noticias de Gipuzkoa with 715 texts.

Science is not important

Most of the texts published (1,089) were of little importance, according to the Richard Budd scale (space given over to the news, the page the news item appears on and the use of graphics or otherwise), and the number of items of especial importance was only 55.

The research results showed that the topics chosen by journalists in providing information on science, technology and innovation were focused basically on technology in general, health, information technology and the environment.

The daily newspapers usually give mere information — brief news items —, although it could not be said that they totally discard an interpretation of such items.

The study also showed that the dailies do not publish many opinion articles on science, technology and innovation and less so editorial opinion on these matters. In the period under study, the eleven newspapers analysed published only 26 editorials on topics related to science, technology and innovation.

Positive view

However, we can say that these dailies maintain a favourable attitude to science, technology and innovation, although this is not directly demonstrated. Thus, the perspective of most of the news items in these fields is positive, although in journalism bad news tends to have greater possibilities for publication than good news.

Above all, the newspapers publish news stories of an official nature related to science, technology and innovation and which are generally related to the Basque Country or to the European Union; more than half (60%) of the sources for the news stories were government bodies. It also has to be pointed out that 25% of news is of unknown origin (the source of or the person responsible for the item is not known), as the newspapers do not provide this information.

Finally, the topics chosen by journalists in the Basque Country to inform about science, technology and innovation are similar to those selected by their European homologues. Moreover, the problems Basque journalists have in trying to identify the origin/author of the news related to these topics are also those mentioned by European communication media professionals.


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Monday, September 29, 2008

Energy Forum at BEC

This note comes to us via EITb:

Bilbao Exhibition Centre to host European Future Energy Forum

09/29/2008

The Centre has been chosen by organizer 'Turret Middle East' to host a meeting which is scheduled to take place next year from the 9th to the 11th of June.

As from 2009, the Bilbao Exhibition Centre is to add another international event to its calendar: the Centre has been chosen by organizer Turret Middle East to host the European Future Energy Forum, the first edition of which is scheduled to take place next year. In the final stage of the selection process, Bilbao completed with Copenhagen, Reykjavik and Frankfurt for the honour of staging the European edition of what has become a strategic event following on from the first World Future Energy Summit in Abu Dhabi (United Arab Emirates) in January this year.

The candidature of the Bilbao Exhibition Centre was part of a package which included support from the Basque government, the Department of Innovation and Economic Promotion of the Provincial Council of Bizkaia, Bilbao City Hall, Bilbao Convention Bureau and Destino Bilbao. The city's selection is made all the more significant by the standard of the other candidates short listed: Germany is Europe’s leading player for renewable energy sources in terms of consumption, output and technological advances, Denmark is the world's leading producer of wind power and Iceland boasts exceptional geological and geothermal resources.

The balance was tipped in favour of Bilbao by the level of investment in the country, the extraordinary recent growth in renewable energy sources, the prominent position of the Basque Country in the field, with strong support from business and institutions, and the success of Gastech 2005, an event which broke records at the Exhibition Centre.

World Future Energy Summit

The first ever World Future Energy Summit featured 220 exhibitors and attracted over 11,000 visitors from 77 countries, including royalty, heads of state, energy and environment ministers, top entrepreneurs and other high-ranking personalities.

In the wake of the success of the summit, and seeking to provide a global benchmark event for policies on energy, investment development and alternative, renewable infrastructures, organising firm Turret Middle East decided to organise a forum outside the Near East every two years, so as to extend the brand to a broader geographical area.

As a result, the Bilbao Exhibition Centre will host a biennial blend of commercial exhibitions and technical seminars on renewable energy sources and their application. This is an area which is undergoing spectacular growth, involving specialists from the fields of energy, architecture and finance.

Organizers with proven prestige

Turret is an English-based firm with broad experience as an event organizer in many different sectors all over the world. It has also maintained links with RAI, DMG and Reed Exhibitions among others, so its representatives work at the highest possible levels. Around 18 months ago it established a subsidiary in Abu Dhabi (to cover the Middle East market), where it has already organised five fairs in the fields of recycling, foodstuffs and renewable energy sources, all of them highly successful. The firm's prestige and track record in organising specialist events means that expectations are high for the success of this fair at the Bilbao Exhibition Centre, aimed at the energy market.


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Tuesday, September 23, 2008

Research on Multiple Sclerosis

This note was published at EITb:

European network to investigate gene causing multiple sclerosis

09/23/2008

Ten research teams will investigate the genetic component of the multiple sclerosis’ treatment, they will do it from the University of the Basque Country.

The University of the Basque Country hosted a conference in which lecturers introduced the European scientific network that will look into the new customized treatments for multiple sclerosis. The talk took place at the so-called “Classrooms of the Experience” located at University’s premises in the old part of Bilbao’s city.

The multiple sclerosis is a chronic neurological disease with no definitive cure. It currently affects 400,000 people in Europe, 2,000 in the Basque Country.

During the presentation it was possible to listen to the Belgian professor Koen Vandenbroeck ‘s speech. Vanderbroek is a scientist that works for Ikerbasque, a Foundation created by the Basque Government that primarily aims to help develop scientific research in the Basque Country by attracting researchers and helping them establish themselves in the field of research. Belgian researcher will be the main coordinator of the study.

A European scientific network will investigate the genetic component of the multiple sclerosis’ treatment and it will do it from the Basque University. Ten research teams from five different countries will work on a 2, 3 million Euro-project during four years. The aim is to use genetics to advance towards a customized medication.

The project also offers training internships intended for young researchers.


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Tuesday, September 02, 2008

Measuring Winds in Venus

This note comes to us thanks to the Basque Research page:

Team led by scientists from University of the Basque Country manage to measure wind details of Venus

Venus is a planet similar in size to the Earth. Nevertheless, it is quite different in other aspects. On the one hand, it spins very slowly on its axis, taking 224 terrestrial days and, moreover, it does so in the opposite direction to that of our planet, i.e. from East to West. Its dense atmosphere of carbon dioxide with surface pressures 90 times that of Earth (equivalent to what we find at 1000 metres below the surface of our oceans), causes a runaway greenhouse effect that raises the surface temperatures up to 450ºC, to such as extent that metals like lead are in a liquid state on Venus. At a height of between 45 km and 70 km above the surface there are dense layers of sulphuric acid clouds totally covering the planet. It was in the 1960s that they discovered, by means of telescopic observations, that the top level of cloud layers moved very rapidly, orbiting the planet in only four days, compared to the planet’s own orbit of 224 days. This phenomenon was baptised the “superotation” of Venus: the winds carrying these clouds travel at 360 km/h.

The various space missions that explored the planet in the 70s and 80s showed that the “superotation” was a permanent phenomenon and, moreover the probes that descended through its atmosphere indicated that, in a number of places, the winds decreased in speed to zero at Venus’s surface. New observations carried out with the Venus Express mission of the European Space Agency, in orbit around Venus since April 2006, have enabled the team of scientists from the University of the Basque Country (UPV/EHU) to determine in detail the global structure of the winds on Venus at its level of clouds while, at the same time, to observe unexpected changes in the wind speeds, and which will help to interpret this mysterious phenomenon. The team was led by Agustín Sánchez Lavega with team members being Ricardo Hueso, Santiago Pérez Hoyos and Javier Peralta, from the Planetary Sciences Group at the Higher Technical Engineering School of Bilbao. The article, entitled “Variable winds on Venus mapped in three dimensions”, was published with front page coverage in the Geophysical Research Letters. This journal is published by the US American Geophysical Union (AGU) and is the most prestigious in its sphere of research. Moreover, the article was one of eight selected amongst hundreds for publication by the AGU in all journals as being the most outstanding in the EOS Transactions bulletin – sent to 50,000 AGU members at research centres all over the world.

Novel aspects of the rotation

Using images recorded by both day and night on Venus with the VIRTIS spectral camera on board the Venus Express, the UPV/EHU scientists have succeeded in measuring these clouds over several months and have discovered new aspects of the “superotation”. Firstly, between the equator and the median latitudes of the planet there dominates a superotation with constant winds blowing from East to West, within the clouds decreasing speed with height from 370 km/h to 180 km/h. At these median latitudes, the winds decrease to a standstill at the pole, where an immense vortex forms. Other aspects of the superrotation that observations with VIRTIS have made possible are that the meridional (North – South) movements are very weak, about 15 km/h, and, secondly, unlike what was previously believed, the superotation appears to be not so constant over time: “We have detected fluctuations in its speed that we do not yet understand”, stated the scientists. Moreover, for the first time they observed “the solar thermal tide” effect at high latitudes on Venus. “The relative movement of the Sun on the clouds and the intense heat deposited on them makes the superotation more intense at sunset than at sunrise”, they stated.

“Despite all the data brought together, we are still not able to explain why a planet than spins so slowly has hurricane global winds that are much more intense than terrestrial ones and are, moreover, concentrated at the top of its clouds” stated Mr Sánchez Lavega. This study has enabled advances to be made in a precise explanation of the origin of superotation in Venusian winds as well as in the knowledge of the general circulation of planetary atmospheres.


Remember, I always dedicate the posts about science and research in Euskal Herria to Keith Johnson who once said that Basques could never excel in science because they speak a language suited only for sheepherders.

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Friday, July 25, 2008

Basque DNA Research in Boise

This not comes to us via Idaho News Now:

Researchers gather DNA from Idaho Basques

by Ysabel Bilbao

BOISE -- Idaho’s largest ethnic group will be celebrating this weekend on Boise’s Basque block.

While a festival for some, it will be an experiment for others.

This block will fill with people for the annual San Inazio Basque Festival.

While Basques enjoy the celebration, two research students from the University of the Basque Country will be gathering DNA for medical research.

For many the Basque Center is a place to have a drink with friends, but this week it’s turned into part bar and part research lab.

Ph.D. students from the University of the Basque Country, Adrian Odriozola and Eneko Sanz, are taking DNA samples from local Basques as part of a worldwide research project.

The two have gathered samples from hundreds of Basques living in Idaho, Nevada, and California.

Each person gargles a liquid, which collects cells from the sides of people’s cheeks.

From the back of the bar their work is then transferred to a lab at Boise State University.

It's here under the guidance of Dr. Greg Hampikian, that Odriozola and his American counterpart Michael Davis extract DNA samples.

"We are trying to establish a collection of Basque Community DNA around the world. And in Boise there are a lot of Basque in Idaho, it's a strong DNA, Basque community," said Odriozola.

It's that strong community and strong genetic link to the old country that has drawn the researchers abroad. Dr. Hampikian says the best form of genetic research comes from twins separated at birth. Studying their DNA helps researchers know if disease or illness comes from nature or nurture.

Studying the Basque here and in their homeland provides that on a much larger scale.

"Finding two populations that have the same genetics that are located in different places is a huge benefit to all of humanity," said Hampikian.

The research students are focusing their studies on Alzheimer’s and Parkinson’s diseases, but their research will include a variety of illnesses, including heart disease, cancer and diabetes.

"We want to establish a strong collection about the Basque community, not only for use in DNA Bank, we want to offer this to the scientific community," said Odriozola.

"These types of studies are ongoing, not just with Europeans or the Basques, but really a worldwide phenomena," said Michael Davis, BSU graduate student.

The Basque researchers will leave Boise next week and head back to the Basque country to input data.

Afterward, they will continue traveling to Central and South America to collect DNA samples from Basques living there.


My only question is, are you to do this before or after your first kalimotxo?

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Tuesday, July 22, 2008

How Trees Protect Themselves

This article about some recent research conducted in the Basque Country regarding how trees (and plants in general) protect themselves during harsh times comes to us thanks to Basque Research:

Measuring the stress of forested areas

Plants undergo stress because of lack of water, due to the heat or the cold or to excess of light. A research team from the University of the Basque Country have analysed the substances that are triggered in plants to protect themselves, with the goal of choosing the species that is best suited to the environment during reforestation under adverse environmental conditions.

Droughts, extreme temperatures, contamination, and so on – all are harmful to plants. On occasions, the damage is caused by humans. For example, as a consequence of cutting down trees, plants used to shady conditions may be exposed to an excess of light. However, in most cases it is nature itself that causes the stress. In spring, plants have sufficient average humidity and temperatures, i.e. what scientists deem ‘optimum conditions’. But in winter they have to withstand considerable cold and in summer, on the other hand, high temperatures and droughts: adverse environmental factors that generate stress situations. Thus, in winter and in summer, the light which under normal conditions would be a source of energy becomes excessive, given that the metabolism of the plants under these conditions is not able to assimilate it. This process is known as photo-oxidative stress.

Some plants are incapable of withstanding this stress – unable to dissipate the excess energy, generating a chain reaction by which they deteriorate and die. Other species, on the other hand, undergo processes of acclimatising themselves to the new situation and trigger chemical compounds that act to protect them. These species are the object of interest of a research team from the Department of Plant Biology and Ecology at the Faculty of Science and Technology of the University of the Basque Country (UPV/EHU). The members of this team – called EKOFISKO and led by Dr. Txema Becerril – are studying the plants’ defence mechanisms in order to predict damage before it is produced. They measure the photo-protector substances created by the plants and analyse their behaviour, using them as biosensors of photo-oxidative stress.

Amongst all these plants, they have been studying trees and other forest species, given that they are long-cycle species and it is important that they acclimatize correctly to the environment before reforestation is embarked upon. The autochthonous species of the Autonomous Community of the Basque Country (CAPV), especially the southern part thereof, being where the two climatic regions - the Atlantic and the Mediterranean – meet, would be the first to suffer the consequences of climate change. The study mainly involves species with ecological, economic or landscape interest, and analyses both the deciduous species and the perennial varieties; particularly the latter as they withstand the cold winter temperatures without shedding their leaves.
On the trail of the box tree

The box is a model species and a good example for analysing the defence mechanisms of plants: it is capable of withstanding quite different environments (both dry and sunny climes as well as damp and shaded conditions), thanks to its resistance and adaptability. When it is under stress, the leaves go red, as other species do in autumn, but its peculiarity is that it is able to convert its chromoplasts (where the red pigments accumulate) into chloroplasts (with green pigments) and once again capture energy when the stress conditions disappear.

In order to measure the biomarkers of photo-oxidative stress the research team also simulated the winter or summer conditions in the greenhouse and in the growing rooms at the Faculty of Science and Technology, i.e. they artificially induced in the plants the conditions which they would have to be subjected. This makes it possible to isolate each one of the stress agents and to study its consequences, leaving aside the rest of the variables found in nature.

According to what the research team at the UPV/EHU have shown, the secret to being the most adaptable species lies in accumulating antioxidants, such as vitamin E and special carotenoids (carotenes and xantophylls); precisely the substances that provide colour to plants. On receiving too much light, the VAZ cycle is triggered and the balance between three xantophylls (corresponding to these 3 initials) is altered so that the excess energy does not harm the plants. The human body, for example, is not capable of creating these highly important substances itself and it has to ingest vegetables in order to obtain antioxidants (from plants). Besides studying the VAZ cycle, Mr Txema Becerril’s team has contributed to the discovery of a new cycle (the lutein epoxide cycle), present in many forest species such as beech, laurel, holm oak or oak and the team is currently studying what exactly is its protective function.


I personally dedicate this post to Keith Johnson and his claim that the Basques were unable to conduct any such research because they were being educated in Euskera.

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Sunday, July 13, 2008

The Basques : Another View

This article tackles one of the issues that fuel this blog, the way the media corporations have been following Spain's lead when it comes to poisoning the view of what the Basque Country is. Madrid has implemented a propaganda campaign in which the term Basque is usually used as a synonym for terrorist, as a result, anything and everything Basques means violence. Paris is all too happy Madrid does the dirty job involved in denying the Basque Country its right to regain its sovereignty.

Well, this article from New Zealand opens a gap in the curtain of lies and deception against Euskal Herria, it comes to us thanks to Stuff:

A Basque solution to growth

WORLD OF SCIENCE - BOB BROCKIE

The Dominion Post | Monday, 14 July 2008

Think of Basques, think of bombs. Right? But there's more to Basques than bombs. The tiny Basque country is renowned for its science.

The region, on the north coast of Spain, is smaller than Wellington province and is home to 2.1 million people. Their common language is Spanish, but about a quarter of them speak the strange Basque language. If you want to say "Nice to meet you" in Basque you'd say "Potzen nau zu ezaguteak".

In the past 200 years, millions of Basques have emigrated to America. Ten per cent of Argentineans have Basque ancestors. Today's Basques, with a gross domestic product per capita income of NZ$48,000, are among the wealthiest people in Europe and much better off than New Zealanders. In the 1980s, Basques' traditional fishing and shipbuilding industries collapsed but, since then, their government has developed a spectacularly successful growth strategy built on scientific knowledge, technological innovation and entrepreurship.

Basques' biggest company, the Mondragon Cooperative, is hugely successful and has tentacles all through Spain and South America. It even has its own university.

The country's wealth is now built on new technologies – aeronautical and energy technology, and making fine machine tools, wind turbines and rolling stock. They are into nanotechnology and miniaturisation in a big way, developing high-performance hybrid materials for hi-tech industries, making precision miniaturised desktop type machinery for mass hydro-forming, stamping and cold- forging bulk materials, and improving high-resolution electron microscopy and lithography.

They are developing new catalysts for hydrogen fuel cells, designing a hydrogen-driven car (H2CAR), installing 16 sea-wave energy turbines, doing stem-cell research, and have developed new implant materials for healing wounds and for plastic surgery. Among other things they are developing miniaturised throw-away medical laboratories – each the size of a credit card and read with a hand-held gadget.

Basque technologists are on to "microwire technology" enabling huge amounts of data to be stored on microscopic wires. These wires have military uses, but Basques paste them on goods in supermarkets. To reach the checkout, your shopping trolley must pass through an electronic arch which instantly calculates the total cost.

They have research centres devoted to climate change, applied mathematics and health innovation. They also have an ambitious plan to "coordinate information and communication technologies around cognitive systems, pervasive computing, digital security and natural interfaces", and participate in the European space programme.

This tiny Basque country has 12,500 scientists and technologists at its universities, polytechnics or in private companies and puts a lot of money into attracting leading foreign scientists to work there, or join forces with them. This month they are advertising internationally for 30 more scientists.

The Basques' capital city, Bilbao, is about the size of Wellington and has become world- renowned for its new, fabulous, elegant, jaw-dropping, avant-guard, titanium-clad museum, and then, in September, there's their popular mixed-sex annual 5000-metre foot race along the beach at low tide, in the nude. First prize a holiday in the Canary Islands.

We have a lot to learn from the Basques.

Just one thing though, the capital city of the Basque County is Iruñea, not Bilbao.

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Thursday, June 19, 2008

Tartalo

Remember how not too long ago an US "journalist" accused the Basque society of being unable to compete in the modern world because of its stone-age language suited only for sheepherding?

Well, seems like things are not so bad in Euskal Herria when it comes to technology, check out this article appeared at Physorg.com:

Tartalo the robot is knocking on your door

A research team from the University of the Basque Country, led by Basilio Sierra, is devising a robot that can get around by itself. Tartalo is able to identify different places and ask permission before going through a doorway.

We are accustomed to seeing robots programmed to carry out a concrete task such as the robotic arms well known in industry. What is surprising is to see a robot walking without help and making decisions for itself. This is precisely what the Autonomous Robotics and Systems Research Team at the University of the Basque Country (UPV/EHU) are involved in: increasing the autonomy of robots so that they are evermore capable of carrying out more tasks on their own. Some years ago they developed Marisorgin, the robot for distributing mail and now they have put Tartalo into operation.

Those working on the third floor of the Computer Science Faculty in the Basque city of Donostia-San Sebastián find it normal and everyday to meet Tartalo in the corridors- meet, not bump into! This 1.5-metre tall, intelligent machine side-steps any obstacle in its path, thanks to sensors that have been installed around its "body": sonars that emit and detect ultrasounds, infrared sensors and laser rays. The laser, for example, measures the distance of the robot from any object within a radius of 180 degrees. Mr Basilio Sierra's team, although it did not build the robot, having acquired it, but it is developing and enhancing its abilities.

With these sensors and the computer that is the robot's 'brain', Tartalo will have the wherewithal to move from one place to another without problems; in fact, to wander. What the research team at the Department of Computational Sciences and Artificial Intelligence want to achieve, however, is a robot capable of going anywhere it is told to.

Finding one's way inside buildings

The machines best known for guiding one from a starting point to a given goal are GPS navigation systems. However, these do not function inside buildings and neither would it be realistic to create a database with the plans for every building in the world. For this reason the UPV/EHU researchers use biomimetic systems as a basis for developing the robot, meaning that Tartalo does the same as a person or animal on entering a new place: explore the terrain and take in points of reference. But, for a machine to carry out what living creatures do by, as it were, instinct, the computer programmers have to nevertheless put in a huge quantity of data, programmes and calculations.

Buildings are semi-structured environments wherein determined common spaces are always found. Tartalo has been "taught" (programmed) to recognise four of these: room, corridor, front hall and "junction". Thus, if we were to take the robot to our home, the first thing it would have to do is to carry out a process of auto-location, going around the apartment in order to memorise the location of these four places. By this process the machine creates a species of topological map and the homeowner only has to teach it what each space is called. For this to be possible, UPV/EHU researchers are designing systems of interaction between machine and persons. For example, in order for the robot to understand instructions, they are perfecting a voice recognition system and touch screen.

Single eye, sharp vision

In order to identify what is in front, to distinguish between a room and a corridor, for example, Tartalo uses this single eye - which gives it its name ?as a camera. It measures the images received through the eye-camera, compares them with its database and then evaluates probabilities to decide what the image that it has ahead looks like. The robot knows, for example, that if the space is long and narrow, it is a corridor.

The most important skill that Tartalo has been taught is to recognise doors. In fact, in order to access most of the places instructed to do so, the robot will have to pass through a doorway first. This is why the camera is located at the level of the doorknob or handle, which is what enables the identification of the door. When this happens, the system is programmed so that, when moving down a corridor, it seeks and negotiates doorways. If the door is closed, as it is not yet fitted with an arm to open it, it knocks two or three times on the door with its "feet".

The aim of the UPV/EHU research team is to develop the navigation system of the robot and the recognition of doors is fundamental to this end. From now on, Tartalo will have to learn to distinguish between many other things, such as faces, voices or any object that it is asked to fetch. But each one of these actions requires a specific programme and this, for the time being, is outside the remit of the research being undertaken by the UPV/EHU Autonomous Robotics and Systems Research Team. Nevertheless, little by little the skills developed by other teams will be incorporated into this robot.

Source: Elhuyar Fundazioa


But where did the robot got its name?

Here you have the answer, via Wikipedia:

Tartalo

In Basque mythology, Tartalo is an enormously strong one-eyed giant very similar to the Greco-Roman Cyclops. It is speculated that the name may derive from the Greek underworld Tartaros. He lives in caves in the mountains and catches young people in order to eat them. He also eats sheep. In Biscay, it's known as Alarabi. There is a story about him that appears to be derived from the Odyssey.

Story

One day, while two brothers of the Antimuño baserri (a kind of basque farm) were hunting, a storm broke, so they decided to take refuge from the rain in a cave, which was Tartalo's cave. Soon after, Tartalo appeared with his flock of sheep. He saw the two brothers and said: "Bat gaurko eta bestea biharko" ("one for today and the other for tomorrow").

That same day he cooked and ate the eldest one, and then, he went to sleep. While he was sleeping, the youngest brother stole Tartalo's ring and then he stuck the burduntzi ("roasting spit" in Basque) in his only eye. Tartalo was blind, but not dead yet.

He started to look for the boy among his sheep, but he put on a sheep's skin and escaped from Tartalo. But, unluckily, when he got out of the flock of sheep, the accuser ring started to shout: "Hemen nago, hemen nago!" ("Here I am, here I am!").

Tartalo got out of his cave and he started to run after the ring, hearing its shouts. The young one wasn't able to take off the ring, so, when he arrived to the edge of a cliff, he cut off his finger, and since Tartalo was near, he decided to throw it down the cliff. Tartalo, following the ring's shouting, fell off the cliff.



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Tuesday, May 27, 2008

Magnetic Shape Memory Alloys

This article was published at Gizmag:

Magnetic Shape Memory Alloys to create robotic claws with nanometer precision

Robotics

May 26, 2008 Researchers at the University of the Basque Country have used ferromagnetic shape memory alloys to develop experimental devices that can position objects with an incredible accuracy of 20 nanometers. The devices do not consume energy after being put in place, and have applications ranging from medical science to positioning mirrors in high-power telescopes.

Shape memory alloys are metals that, after being bent, are triggered to return to their original state after being heated. The phenomenon was first observed in 1932, but it was only with the commercialization of the Nickel-Titanium alloy, or nitinol, that their applications were properly explored. Researchers at the Ohio State University have proposed using nitinol instead of stainless steel when reconstructing broken bones – the urge of the metal to return to its form exerts a constant pressure on bones, forcing them to stay in place. Stiquito, a small robot often used in university courses, uses the expansion and contraction of nitinol as a method of propulsion.

However, ferromagnetic shape memory alloys only transform back to their original configuration when exposed to a magnetic field. Since the application of the field is instant, the transformation is also rapid, as compared to the gradual heating and cooling of metal in regular shape memory alloy transitions. Ferromagnetic shape memory alloys do not exist commercially, and are currently only created as part of research.

The Automation Group at the Department of Electricity and Electronics of the Faculty of Science and Technology at the Leioa campus of the University of the Basque Country (UPV-EHU) is studying the stimulus-response characteristics of shape memory alloys and ferromagnetic shape memory alloys, with the aim of using them to facilitate precise movements in electrochemical systems in robotics. The researchers used shape memory alloys to build a prototype of a lightweight gripping claw - nitinol wire was placed between two elastic metal sheets, which contracted when a current was applied to the wire, gripping any objects around it. The claw has a point of precision to within a micron. The University hopes to further refine the ferromagnetic shape memory alloy actuators, which are already precise within 20 nanometers.

All these devices, currently at a laboratory stage, are useful for testing the basic characteristics of the materials, but in the future they could be end-product commercial prototypes for robotic devices and in micro and nanopositioning.

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Saturday, April 19, 2008

Basque Research on Molecules

This note comes to us thanks to EITb:

Sci/Tech

Important progress


Basque scientists' research work hits the "Science" cover

04/18/2008

Donostia International Physics Center and U.S. scientists have discovered that some organic molecules have similar electronic properties to the atoms.

A joint research work by Basque and U.S. scientists on the electronic properties of organic molecules hit on Friday the cover of the prestigious scientific magazine Science. The discovery proves that organic molecules have conductivity properties similar to those of the metal materials

The discovery is a joint work carried out by scientists of the Donostia International Physics Center (DIPC) of the Basque city of Donostia-San Sebastian and the University of Pittsburgh (U.S.), who coined the term "superatom" to refer to these molecules.

The research team is led by Hrvoje Petek, a Croatian physicist professor at the University of Pittsburgh working at the moment at the Donostia International Physics Center within a Basque Government's scheme to employ top-level scientists.

According to the DIPC, the "superatoms" have conductivity properties similar to those of the metal materials, "which could be very useful in the future for the development of nanometric electrical devices".

According to Petek, the discovery "creates a new perspective on the electronic properties of the materials" as to prove that hollow-shell molecules can have similar conductivity properties to the metal materials paves the way to the creation of new materials with custom-designed chemical and electronic properties".


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Tuesday, April 08, 2008

DNA Research at Aldaieta

This article was published at Innovation Reports:

Ancient DNA: reconstruction of the biological history of Aldaieta necropolis

A research team from the Department of Genetics, Physical Anthropology & Animal Physiology in the Faculty of Science and Technology at the Leioa campus of the University of the Basque Country (UPV/EHU), and led by Ms Concepción de la Rúa, has reconstructed the history of the evolution of human population and answered questions about history, using DNA extracted from skeleton remains.

Knowing the history of past populations and answering unresolved questions about them is highly interesting, more so when the information is obtained from the extraction of genetic material from historical remains. An example is the necropolis at Aldaieta (Araba) where some of these mysteries about these peoples have been answered – thanks to the study of their DNA.

Aldaieta brings together certain important features which make this site a prime archaeological and historical record and its conservation an important task of restoration and study. In this vein, the Department of Genetics, Physical Anthropology & Animal Physiology in the Faculty of Science and Technology at the University of the Basque Country (UPV/EHU), has undertaken a study of DNA in the necropolis at Aldaieta (Araba).

The researchers at the UPV/EHU have been studying the genetic material of ancient remains, extracted both from bones and teeth, in order to interpret the biological and social meaning of this necropolis. The study of ancient DNA is a field in which laboratory work is enormous for a number of reasons. On the one hand, in comparison with modern or current DNA, that extracted from the bones and teeth is quite degraded and is in very small quantities. As a consequence, the risk of contamination is high. This is why, at all times the results obtained have to be authenticate and it has to be demonstrated that they are not due to contamination or handling/manipulation, but have genuinely been obtained from the samples.

The research work began with the extraction and subsequent analysis of DNA from the ancient remains (normally by the sequencing of mitochondrial DNA, a molecule inherited maternally) of each individual and in duplicate. Moreover, a third copy of the sample from each individual was sent to another laboratory and. finally, they compare all of them in order to distinguish between what is endogenous from what is the result of handling. Obviously, the results obtained from the same sample/individual have to tally in all the analyses in order to be reliable.

Interpretation of the settlement at Aldaieta

Despite the problems inherent working with ancient DNA, the methodology drawn up for the current work as well as the precautions and criteria of authentication undertaken have enabled reliable and verifiable results of the population buried at Aldaieta to be obtained.

Within the great homogeneity of the mitochondrial lines on the European continent, the genetic substrate of the population buried at Aldaieta falls within the variability of that expressed by current populations on the Cantabrian coast and Atlantic axis, thereby indicating the existence of genic flow between these human groups in ancient times.

Besides the characterisation of the mitochondrial genome, they have carried out the characterisation of the chromosome Y, using techniques focused on ancient DNA, an have shown the existence of family relationships within the necropolis, given that certain mitochondrial lines have a particular distribution, the grouping of individuals belonging to the same line having been discovered at nearby burial sites. Besides, there exists a significant differentiation gender wise, men having qualitatively and quantitatively more important funerary artefacts than women.

It is clear that the genetic analysis of skeleton remains, despite the labour-intensive work involved and the problem of authenticity of the results, has provided an essential contribution in the reconstruction of the biological history of human populations.

Irati Kortabitarte

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Friday, January 25, 2008

Usurbil and Jupiter

Another example of a group of Basque scientists spearheading important scientific research, this time it has to do with Jupiter.

This note appeared at Space Daily:

The Mystery Of Jupiter's Jets Uncovered

by Staff Writers
Usurbil, Basque Country (SPX) Jan 25, 2008

At the end of March 2007, scientists all over the world observed with surprise and awe a rare change in the atmosphere of Jupiter. A giant perturbation occurred amongst its clouds and two extremely bright storms erupted in the middle latitudes of the northern hemisphere, where its most intense jet stream - reaching speeds of 600 kilometers per hour - resides.

Research into these unusual storms (previous ones had been seen in 1975 and 1990) and the reaction of the jet to them, undertaken by an international team coordinated by Agustin Sánchez-Lavega, from the Higher Technical School of Engineering of the University of the Basque Country (UPV/EHU), gives a more precise idea about the origin of these current flows and likewise can help to gain a better understanding of terrestrial meteorology.

The work, entitled "Depth of a strong Jovian jet from a planetary-scale disturbance driven by storms', is the cover of the 24 of January issue of the journal Nature.

The team, made up of scientists from the UPV/EHU, researchers from the Fundacion Observatorio Esteve Durán in Barcelona and from several North American centres: NASA, the Jet Propulsion Laboratory, the Universities of Berkeley and Arizona, as well as the University of Oxford in the United Kingdom, amongst others, monitored the event with a spatial and temporal resolution without precedent.

On the one hand, they used the Hubble Space Telescope (HST) and, on the other, the NASA telescope at the mountain tops of Hawaii and the telescopes in the Canary Islands, due to the infra-red light of which, the highest clouds and temperature changes can be observed. Moreover, also decisive was the help of a whole battery of smaller telescopes located around the Earth's southern hemisphere, from where planet Jupiter can currently be seen in better conditions.

Fortunately, the beginning of the storm was observed by the HST as a backup of the observations that the New Horizons spaceship undertook in its overflight on its way to far off Pluto. They observed how the storm grew quickly from 400 km to 2,000 km in less than 24 hours, explained Mr Sánchez-Lavega.

According to the study, the very bright storms are formed amongst the deepest clouds of water on the planet, rising vigorously and injecting a mixture of ice ammonia and water up to 30 km above the visible clouds. The storms move with the maximum velocity of the jet, - more than 600 kilometers per hour, creating disturbances and generating a stele of turbulence of reddish clouds that circle the whole planet. The infrared images show the brilliant festoons that make up the storms abandoning the jet stream to leeward.

Surprisingly, and despite the enormous amount of energy deposited by the storms and the mixture and whirlwinds generated thereby, the jet stream stayed practically still during all this perturbation and, when it was over, this stayed robust, despite the event suffered. The computer models simulating the progress of the phenomenon suggested that the jet stream goes deep into Jupiter's atmosphere, to more than 100 km below the visible cloud level and where solar energy cannot reach.

This confirms the results previously obtained by the Galileo probe when it penetrated Jupiter's atmosphere in December 1995. Although the regions studied are meteorologically different, everything points to Jupiter's jet streams going very deep and suggests that the internal energy source plays an important role in its generation, states Mr Sánchez-Lavega.

The comparison of the currently observed phenomenon with the previous cases of 1975 and 1990 show surprising similarities and coincidence, although without an explanation for the time being. The three eruptions have had a periodicity of between 15 to 17 years, strange for Jupiter as they do not bear any obvious relationship with the known natural periods of this planet.

The storms arose at the peak of the jet, where the velocity is maximum, not to the North or to the South and there have always been two storms (not one or more or one less) and, finally, in all cases they move at the same speed. If, at some time in the future, we are able to crack this riddle, we will know the mysteries that lie beneath Jupiter's clouds, comments Mr Sánchez-Lavega.

The atmosphere of the giant gaseous planet of Jupiter, ten times the size of the Earth and where the day lasts only 10 hours, is in a permanent state of agitation. Atmospheric circulation is dominated by a system of jet streams, alternating in latitude and that distribute their clouds in bright and dark rings parallel to its equator - all these phenomena being unexplained. The changes in the cloud rings are sometimes violent ones circling the planet.

Their origin and that of the energy source generating them as well as the jet streams are all matter for controversy amongst meteorologists and planet scientists. They might be generated by the deposition of solar radiation as on Earth or by the intense internal energy source emanating from Jupiter's interior or perhaps by a combination of both.

Knowing the mechanisms that operate in these phenomena is important for terrestrial meteorology - which is home to many storms and where jet streams also dominate atmospheric circulation. In this manner Jupiter represents a natural laboratory where scientists can study the nature of and the interrelation between jet streams, storms and violent atmospheric phenomena.


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Basque Robotics

Here you have an example of how advanced science and technology are in Euskal Herria, just in case you read Keith Johnson's piece of slander against Basque society.

It was published by Medical News Today:

Robotics Project: Led By Tekniker-IK4

Main Category: Medical Devices
Article Date: 25 Jan 2008 - 4:00 PST

The "ROBAUCO: mobile, autonomous and collaborative robots" project was recently initiated, being led by Tekniker-IK4 and also involving the participation of another Basque technology centre, Fatronik, the Valencian Instituto Tecnologico de Informatica (ITI) and CARTIF, the technology centre in Castilla-Leon. Moreover, university teams outstanding in robotics research have also collaborated - from the Carlos III University in Madrid, the Polytechnic University of Catalonia, the University of Seville and the University of the Basque Country. The project is to last 30 months and has a budget of nearly 2 million euros, of which somewhat more than 650,000 euros has been allocated to Tekniker-IK4, coordinator and proponent of the idea.

The principal objective of the project is the generation of the technologies necessary for the development of mobile robots able to carry out complex tasks with a high degree of autonomy and capacity for collaboration. These robots, moreover, have to share tasks with people in the most friendly and natural way possible.

The technological areas in which solutions are to be developed are:

~ The perception of the robots. Using sensors and sensorial systems which, with a holistic approach, are capable of recognising the complex environment (given that the idea is for exterior applications, over unknown terrain and changing situations).

~ Communications. Between the robots themselves and with humans, in such a way that mutual collaboration leads to success in the targets set.

~ Person-robot interaction Here the idea is that the robot is not limited to just obeying control orders that are formulated electronically, but they are also enabled to interact with their human collaborators and in the most natural manner, including with voice and, above all, with gestures which, for tasks in the exterior and in extreme conditions, may be the most reliable channel of communication.

~ Autonomous behaviour. In this case the idea is to resolve complex problems of navigation on surfaces and in spaces that are difficult and equip the robots with self-perception in such a way that they are aware of their state, can undertake self-diagnosis and adopt measures in case of breakdown or limitations to their capacities.

~ Mecatronic components. The problem to be tackled in principle is the movement through and overcoming of obstacles in all media, terrestrial, aquatic and aerial.

It is hoped to materialise all these developments in a terrestrial robot prototype which, in all probability, will be a test bank for solutions to emergency situations such as forest fires, rescues, etc. In order to know the peculiarities and skills these tasks require and thereby to orientate the prototype accordingly, contacts have been made with SOS Deia (the Basque Emergency Rescue Service) and it also expected to know other viewpoints from other autonomous emergency services.

The project is one of 6 which, at a Spanish State-wide level, is being financed by the State Office for Small and Medium Enterprises of the Ministry of Industry, Tourism and Trade, through the programme of partnered projects designed to stimulate a synergic effect from the collaboration of various technological centres.


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Monday, January 07, 2008

Fruit Juice Fingerprints

Here we have this note published by Science Centric:

A fingerprint for fruit juices

Science Centric
— 7 January 2008 | 16:10 GMT

Adulterations or other possible food frauds are a financial problem that affects many foodstuffs. This is why achieving the authentication of food products is of great importance. In the case of fruit juices the most common type of adulteration is mixing the original juice with juices from other, cheaper fruits (mainly grapefruit, grape or pear); in other words falsifying the juice.

Amongst the chemical methods of authentication, there are two different strategies. On the one hand, the employment of markers — chemical compounds that are ideally specific for or exclusive to each fruit and that can be rapidly, safely and cheaply measured and analysed. This would be ideal. On many occasions, however, it is not possible to find markers that fulfil these requirements and, so, another approach to authentication methods is to measure and analyse a greater number of chemical compounds that make up the characteristic profile of each fruit or fruit juice. The complexity of this requires the employment of chemical analysis techniques and highly sophisticated statistical tools.

In order to confirm the authenticity of the fruit juices, researchers at the Department of Analytical Chemistry of the University of the Basque Country (EHU-UPV) are trying to identify their fingerprints, as it were, using a family of chemical compounds naturally present in all fruit and known as polyphenols. There are thousands of polyphenols amongst the various species in the vegetable kingdom, with differences both in the number of particular polyphenols present in each vegetable species as well as in the quantities found. Thus, different fruits have specific polyphenolic differences.

In order to analyse polyphenols present in each for each fruit, researchers at the EHU-UPV used a high-performance liquid chromatography technique (HPLC), through which they culled information about what particular polyphenols are present in each fruit and in what quantity. This enables the study of the differences in the polyphenols between one fruit and another.

In any case, to be more certain of these polyphenols profiles, the confirmation is needed of the identity of each one of the polyphenols appearing in these profiles. To this end, a mass spectroscopy (MS) analytical technique was employed.

A total of 16 fruits (orange, mandarin, lemon, grapefruit, etc.), grown in Spain, were studied. In each case a study of the various varieties of each fruit was undertaken — up to 77 varieties, in order to know the common points of all fruits, and their differences.

Beatriz Abad has found, amongst other things in her PhD, a quite exclusive marker for lemon and three for grapefruit. She has also shown that using several markers instead of one increases the probability in detecting the food fraud. Moreover, she observed key differences in various ‘prints’ and, using certain statistical tools, showed that such differences provide a quite reliable degree of accuracy in the detection of some mixtures of juices. For example, detecting the presence of grapefruit in orange juice is very sure and relatively easy; detecting the presence of lemon juice in orange juice is also quite accurate; but detecting the presence of mandarin oranges in orange juice is much more difficult and not very reliable, given that the mandarin and the orange are very similar in their ‘prints.’

To date they have defined the polyphenolic profiles or polyphenolic ‘fingerprints’ of the various juices from genuine fruit. The next step is currently being carried out by researchers at the EHU-UPV — applying these ‘prints to existing commercial juices on the market in order to detect possible adulterations or frauds.

Source: Elhuyar Fundazioa


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Monday, December 10, 2007

Science Park

Check out this note that appeared at EITb:

Sci/Tech

Presentation of the project

Basque Public University to build science park in 2008

12/10/2007

The new project includes 14 buildings in the Leioa campus and will be "strategic" to achieve the targets of competitiveness and innovation in the Basque Country.

The construction of a science park in the Leioa campus of the Basque Public University will start in 2008, UPV rector Juan Ignacio Pérez confirmed last week during the presentation of the project.

The new park, which will include 14 buildings for technological firms, will have a budget of €123 million and will be finished by 2018.

The target is to "bring firms and technological activities" as well as "offer a transfer of communication" between the firms and the Basque Public University.

The park will promote the settlement of technological firms in the Basque Country, will employ about 2,500 people and will be "strategic" to achieve the targets of competitiveness and innovation in the Basque Country.

The science park will have a surface of 188,000 square meters and will also include a residence to house 280 students and scientists.


Hmmm, not too bad for a people with a language best suited to herd sheep and cows.

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