Science and rock

An innovative partnership between a research institute and a music festival is helping to connect scientists and young people in Portugal. It is also bringing in money to fund research.Science, more than ever, ought to be seen as a socio-cultural activity. It is a collective enterprise involving scientists and the public, aimed at understanding the world and contributing to a better standard of living, either by having an impact on technological developments or health-related issues. Yet, the perception of science and scientists among the public is not always positive. New scientific and technological developments can sometimes be greeted with disinterest, scepticism or even fear, due largely to misinformation, political agendas and a lack of understanding of science in the public sphere. As such, there is a clear need to improve scientific education at all levels, both in schools and universities, as well as among the general public.Informal environments can be important in promoting public engagement with science-related issues. Schools cannot act alone, and evidence shows that non-school settings, which are often overlooked, can strongly stimulate and contribute to science learning [1,2]. Informal environments have two main benefits: the first is the awareness, motivation and excitement that learners experience when discovering science in an informal setting; the second is that people are more comfortable and able to interact more easily with science without feeling overwhelmed.Although tacit and not always as scientifically accurate as more formal education, science learning within informal environments can still have a positive influence on the academic success of students, as well as on the likelihood that they will ultimately consider a science-related career. Such experiences can also promote informed engagement in civic science-related issues such us environmental concerns, policies and fundraising.Importantly, learning science within these environments should be developed through partnerships between scientific institutions, local communities, funding bodies, government agencies and volunteers, all of which need to understand the overall value of science to society to engage with the project [3].Music festivals offer important advantages as informal venues for learning about science because they are interactive. This makes it possible for participants to engage emotionally and cognitively, and encourages them to extend their science learning over time. Importantly, festivals offer access to members of the public who would be unlikely to attend events such as science fairs or science cafés. The UK group Guerilla Science (http://guerillascience.co.uk), for example, has demonstrated the positive impact that these kinds of unexpected encounter with science and art can have on the public perception of science.…non-school settings, which are often overlooked, can strongly stimulate and contribute to science learningIn recent years, commercial brands have begun to see the potential of music festivals as a valuable channel to reach young people. However, rather than using traditional advertising, brands allow consumers to engage with them through different experiences in what is called ‘experimental marketing'' [4,5]. What is not so common, however, is that event organizers give scientists the opportunity to engage young people in the same way.To address this deficit and raise the profile of science at music festivals, António Coutinho, the Director of the Instituto Gulbenkian de Ciência (IGC), and Álvaro Covões, the Director of Everything is New, which organizes the popular Optimus Alive Oeiras music and art festival in Portugal, announced a new partnership between the two organizations in May 2008. In a press conference, the Directors explained the impact that they hoped bringing science to music festivals might have on the public understanding of science, while music journalists were surprised to find themselves interviewing scientists about their daily lives and research. Importantly, the Directors announced that the partnership would include a financial component, such that revenue from the festival would be used to fund fellowships at the IGC.Four years later and the partnership is still going strong. In 2011, the Coldplay concert at Optimus Alive Oeiras was sold out and fans were treated to all their favourite songs. What they were not expecting was that they would also interact with scientists from the IGC. Despite the proximity of the IGC to the festival venue, this was probably the first time that many of them had even thought about the institute, what it does and who works there.At the IGC stand, close to the main stage, science and music mix in unexpected ways. Different science-related activities are used to engage visitors. Revellersqueue to speak with scientists (Fig 1), extract DNA from strawberries by using everyday reagents, make flavoured ice-cream frozen in liquid nitrogen and find out how our genes determine eye colour, the alignment of little fingers, ear shape and the ability to roll your tongue. Visitors can take home a microcentrifuge tube containing strawberry DNA and, hopefully, a desire to know more about science and scientists. There are also ‘sci-arts'' installations and photo exhibitions about the research projects and young scientists sponsored through the partnership.Open in a separate windowFigure 1The Instituto Gulbenkian de Ciência booth at Optimus Alive Oieras in 2009. Festival-goers queue to meet scientists and conduct miniature science experiments, introducing them to science in an informal and enjoyable learning environment. Photo courtesy of Instituto Gulbenkian de Ciência.The highlight of the activities at the festival, however, is probably the ‘speed-dating'' with scientists (Fig 2). This event takes the form of a five-minute conversation between a festival-goer and a scientist in a relaxed and entertaining space. The conversations serve to break down stereotypes of scientists, encourage interest in careers in science and involve the public in scientific research. The questions asked are often insightful, surprising and thoughtful: “will we have a vaccine against cancer?”; “what degree should I take to be a scientist?”; “does a scientist also listen to music?” or even “is it safe to eat genetically modified food?” The IGC researchers who take part range from PhD students and postdocs to group leaders. They all have different backgrounds including biology, physics, bioinformatics, medicine and chemistry. The topics of conversation range from the latest work on genetics or cancer to more general questions about what motivates scientists, the day-to-day life of researchers and how research fits in with a private life. Conversations frequently last more than the allotted five minutes and the visitors have the opportunity to speak with at least three scientists from the IGC.Open in a separate windowFigure 2Speed-dating with scientists. Members of the public get five minutes to sit and talk with an Instituto Gulbenkian de Ciência scientist about life as a researcher, science and the latest research. Conversations often go on for more than five minutes and the interactions are rewarding for all participants. Photo courtesy of Instituto Gulbenkian de Ciência.The feedback from festival-goers is excellent. The opinions offered in the surveys of visitors are overwhelmingly positive: “I loved the enthusiasm of the scientists. Keep going like that. I also want to be a scientist,” wrote one respondent. “Very interesting initiative. I''m not from the natural sciences area but it was great to meet with scientists that open the doors of their research to us. Knowledge is never too much,” commented another. “This initiative was a success and we hope it happens again.” The surveys also reveal that visitors to the IGC space in the last four years—around 600 people each year—are mostly teenagers and young adults: 29% are between 13 and 19 years old, and 51% are between 20 and 29 years old. Only 15% of the visitors are between 30 and 39 years old, 4.5% are over 40 years old, and only 0.5% are under 13 years old.Web-based platforms have also been used successfully to disseminate the activities and results of the initiative. On the music festival website and its Facebook page, which are visited by thousands of people each day, a section on science is highlighted describing the partnership and the activities at the IGC space. Additionally, a Facebook page was created by the IGC, which allows the winners of the fellowships to interact with the general public (www.facebook.com/BolsasOptimusAliveOeirasIGC). On YouTube, three videos of the IGC presence at the festival, prepared by the IGC, are also available (http://www.youtube.com/user/IGCiencia).This feedback and interaction is particularly pleasing, as teenagers are a notoriously difficult audience for science engagement. If we aim to increase the number of people pursuing scientific careers, we must find new ways to attract this age group to science-related issues. According to the European Commission, Europe will need one million more researchers by 2020 than it has at present, and it is urgent that we find new ways to attract young people to careers in science [6]. A study of American teenagers shows that a lack of contact with scientists in their daily lives, and a lack of understanding of what scientists do, discourages young people from pursuing careers in scientific areas. As such, contact with motivated scientists could change these attitudes toward science and scientific careers [7].Having scientists present alongside pop stars is also a good way of showing that scientists spend their free time similarly to other people, by attending social and entertaining activities. Hopefully, this juxtaposition breaks down barriers and engages teenagers from multiple backgrounds with a broad range of interests and musical tastes. Young adults, another age group present at music festivals, are also an extremely important audience for science communication. Although they might have finished their formal education, their interest and engagement in scientific issues is still extremely important to society.Scientists gain important experiences and skills from working at the festival. For the last four years, around 70 scientists per year, mainly from the IGC, have volunteered for the IGC space at the festival (Fig 3). Science communication skills are fundamental to scientific career progress and personal fulfilment. A survey carried out by the European Molecular Biology Organization (EMBO; Heidelberg, Germany) found that senior life scientists believe that PhD and other postgraduate training programmes should give more attention to scientific communication, both public and peer-to-peer, and that these transferrable skills should be developed early and regularly updated [8,9]. Another survey by People Science & Policy (PSP), commissioned by the Royal Society, Research Councils UK and the Wellcome Trust, showed that although lack of time is a constraint, scientists want to engage more with the public, especially with policy-makers, students and industry, and that it is important that scientific institutions and other organizations find ways to facilitate public engagement by scientists [10]. As one volunteer expressed: “I have to acknowledge Everything is New and the IGC for this prestigious opportunity, as this is a new challenge for me and is a way of bringing science closer to the general public.”Open in a separate windowFigure 3The Instituto Gulbenkian de Ciência volunteers at Optimus Alive Oieras in 2009. Photo courtesy of Instituto Gulbenkian de Ciência.In addition to the value of engaging the public with science, the partnership has important financial benefits for the IGC. Fundraising is a key aspect of the partnership, which highlights the importance of private funding for biomedical research in Portugal. Everything is New, the festival promoter, supports two research fellowships per year for graduates in areas such as biodiversity, genetics and evolution. Since 2009, Optimus Alive Oeiras–IGC Research Fellowships have given young science graduates the opportunity to pursue research in areas that interest them (Sidebar A). Each fellowship is for a 12-month period and is carried out partly at the IGC and partly at a foreign institute (

Phosphate rock bioleaching

Summary Microbiological acid solutions produced byThiobacillus ferrooxidans andThiobacillus thiooxidans on pyritiferous concentrate were used to solubilize phosphate rock with a high grade in P₂O₅. Five different mixtures of pyritiferous concentrate and phosphate rock, in different proportions, were used in adequate liquid culture media. Phosphate solubilization ranged from 12% to 100% when 9K nutrients medium was used and from 12% to 89% when medium contained only 3.0g/l ammonium sulphate.     

South African rock art

The total number of rock art sites in South Africa certainly is in excess of 30,000. Collectively, they include well over a million images. However, fewer than 10,000 sites are listed on official databases. One reason for the lack of documentation is the high cost of establishing and maintaining recording programs. There is also a low level of public interest in rock art because both the art and the history of indigenous peoples have been neglected in school and university curricula. Matters are improving: At least one postgraduate university course dedicated to rock art will be offered at the University of the Witwatersrand beginning in 1999. Moreover, the gradual inclusion of cultural resources in heritage conservation and management programs is continuing. The significance of the oversight in the past is magnified if we consider the fragility of the art and the potential wealth of information it holds for understanding the evolution of South African society over the past 30,000 years. Rock art is an irreplaceable historical archive of extraordinary value. Although no one would dispute that this art must survive intact into the next millennium, research into its meaning is equally important if we are to convince the public that the art is worth saving. It is in this latter field that South African researchers have made a significant contribution to rock art studies in the past three decades.     

Solubilization of rock phosphate by rape

Rape and sunflower were compared with respect to their rock phosphate mobilizing capacities, cationanion balance and uptake of Ca and NO₃ at P-starvation. Rape was able to mobilize P from rock phosphate, whereas sunflower was not.When grown on a complete nutrient solution with NO₃ as the only nitrogen source, both species took up more nutrient anions than cations. Withholding phosphate from the nutrient solution did not change the uptake pattern of rape, but sunflower took up more nutrient cations than anions at P-starvation, due to a strong decline in NO₃ uptake. With both species, Ca uptake was not affected by phosphate in the nutrient solution.In split pot experiments, with rock phosphate supplied spatially separated from other nutrients, rape was still able to mobilize rock phosphate. A high Ca concentration had no effect on this capacity.The results indicated that in our experiments rock phosphate mobilization by rape was not associated with an excess of cation over anion uptake and neither with a high Ca uptake rate.     

Fungal leaching of titanium from rock

Penicillium simplicissimum solubilized up to 80% of the titanium in granitic rocks but less than 2% of the titanium in basaltic rocks.     

Solubilization of rock phosphates byRhizobium andBradyrhizobium

The ability ofRhizobium andBradyrhizobium strains to solubilize phosphate from hydroxyapatite was determined in a medium containing NH₄Cl or KNO₃. The presence of NH₄ ⁺ in the medium resulted in higher solubilization of phosphate as compared to the presence of KNO₃, with the exception ofR. leguminosarium bv. viceae strain TAL 1236 and 1402 which solubilized comparable amounts of phosphate in a medium containing either KNO₃ or NH₄Cl. These results suggest that the strains employ two different mechanisms for phosphate solubilization, one depending on the presence of NH₄ ⁺, the other not requiring its presence. Temperature and aeration (O₂ demand) optima were 30°C and 4.2 Hz (shaking frequency), respectively. In nonsterile soil the tested strain (R. meliloti TAL 1236) was very effective in solubilizing rock phosphate.     

Physicochemical study of rock crab lipoproteins

Physicochemical studies have been carried out on the hemolymph and egg lipoproteins of the rock crab (Cancer antennarius). Analytical ultracentrifugal analyses of vitellogenic female HDL₃ revealed the presence of two types of lipoproteins. The first with a sedimentation rate of 5.35 S was comparable to lipoproteins in male and non-vitellogenic female hemolymph. The second with a sedimentation rate of 10.74 S was comparable to the major lipoprotein of egg yolk. A similar comparison could be made following electrophoretic analyses in native polyacrylamide gels. Electrophoresis in SDS-polyacrylamide gels revealed three major apolipoproteins common to egg and vitellogenic HDL₃. A fourth apolipoprotein was found in both male and female HDL₃. In contrast to mammalian HDL, none of these crustacean apolipoproteins had a molecular weight less than 82000. One of these apolipoproteins appears to be comparable physicochemically to the enteric form of apolipoprotein B in mammals.     

Physiochemical study of rock crab lipoproteins

Physicochemical studies have been carried out on the hemolymph and egg lipoproteins of the rock crab (Cancer antennarius). Analytical ultracentrifugal analyses of vitellogenic female HDL3 revealed the presence of two types of lipoproteins. The first with a sedimentation rate of 5.35 S was comparable to lipoproteins in male and non-vitellogenic female hemolymph. The second with a sedimentation rate of 10.74 S was comparable to the major lipoprotein of egg yolk. A similar comparison could be made following electrophoretic analyses in native polyacrylamide gels. Electrophoresis in SDS-polyacrylamide gels revealed three major apolipoproteins common to egg and vitellogenic HDL3. A fourth apolipoprotein was found in both male and female HDL3. In contrast to mammalian HDL, none of these crustacean apolipoproteins had a molecular weight less than 82 000. One of these apolipoproteins appears to be comparable physicochemically to the enteric form of apolipoprotein B in mammals.     

An interesting rock from Krapina

Symbolic items are seldom associated with Neandertals and, when they are, many paleoanthropologists consider them to be Neandertal imitations from modern Homo sapiens. At the Croatian site of Krapina dated to MIS 5e or about 130,000 years ago, among many items, a split limestone rock was excavated by Dragutin Gorjanović-Kramberger between 1899-1905. This brownish rock reveals many dark dendritic forms in cross- and longitudinal section. Of more than 1000 lithic items at Krapina, none resemble this specimen and we propose it was collected and not further processed by the Neandertals because of its aesthetic attributes. Along with other examples from sites in western and central Europe and the recent discovery of eight modified white-tailed eagle talons from Krapina, this unique item suggests that Neandertals were capable, on their own, of incorporating symbolic objects into their culture.     

岩生植物金发草生长特征研究

研究了重庆地区金发草在3种基质种生境中的生长特征.结果表明,种生境下金发草基径、冠幅、高度及根系面积、最长根和根深差异极显著.3种基质中,紫色土中金发草的地上部分基径(15.18cm)、冠幅(3086.77cm²)和高度(66.8cm)均为最大值,而紫色砂岩金发草的基径(10.89cm)、冠幅(1868.79cm²)和高度(60.7cm)均为最小值,但差异不显著.砂岩中金发草的根系比紫色土中分布广泛,差异显著,说明岩石生境中金发草将较多生物量投入到根系,通过增加根系的生长,提高其在岩石上的固着能力,扩大根系吸收面积,忍耐岩石基质的干燥和贫瘠.     

Alpha-chloralose immobilization of rock doves in Ohio

To improve capture efficacy of rock doves (Columba livia) in nuisance situations, we reevaluated the effectiveness of three dosages (60, 120 and 180 mg/kg) of alpha-chloralose (AC). Responses to immobilization using 180 mg/kg AC also were compared in rock doves deprived of food for 16 hr and not food deprived. Mean (+/- SE) time to first effects (33 +/- 2 min) and mean time to capture (94 +/- 5 min) were significantly less for rock doves receiving 180 mg/kg than for rock doves receiving lower dosages (> or = 53 +/- 3 min and > or = 153 +/- 17 min, respectively). Ten, 10, and eight rock doves immobilized with 60, 120, and 180 mg/kg AC recovered within 24 hr, respectively; all rock doves recovered within 29 hr. Although food-deprived rock doves showed effects of AC immobilization earlier than did rock doves with food, time to capture was similar between these two groups. For capturing rock doves, we recommend treating corn with 3 mg AC/kernel and using 180 mg/kg as the effective dose. This modified formulation and dosage should improve capture success of rock doves substantially and improve the ability to resolve nuisance rock dove problems.     

Dinosaur diversity and the rock record

Palaeobiodiversity analysis underpins macroevolutionary investigations, allowing identification of mass extinctions and adaptive radiations. However, recent large-scale studies on marine invertebrates indicate that geological factors play a central role in moulding the shape of diversity curves and imply that many features of such curves represent sampling artefacts, rather than genuine evolutionary events. In order to test whether similar biases affect diversity estimates for terrestrial taxa, we compiled genus-richness estimates for three Mesozoic dinosaur clades (Ornithischia, Sauropodomorpha and Theropoda). Linear models of expected genus richness were constructed for each clade, using the number of dinosaur-bearing formations available through time as a proxy for the amount of fossiliferous rock outcrop. Modelled diversity estimates were then compared with observed patterns. Strong statistically robust correlations demonstrate that almost all aspects of ornithischian and theropod diversity curves can be explained by geological megabiases, whereas the sauropodomorph record diverges from modelled predictions and may be a stronger contender for identifying evolutionary signals. In contrast to other recent studies, we identify a marked decline in dinosaur genus richness during the closing stages of the Cretaceous Period, indicating that the clade decreased in diversity for several million years prior to the final extinction of non-avian dinosaurs at the Cretaceous–Palaeocene boundary.     

Dinosaur tracks in intrusive igneous rock

Well preserved brontosaur footprints are replicated as impressions at the top of a dacitic igneous sill that intruded the track‐rich Cretaceous Jindong Formation, Kyeongsang basin South Korea. Although an unusual occurrence, the example shows the potential of such intrusions for enhancing preservation of trace fossils in some cases     

Sustaining fibers in the rock lobster

The properties of sustaining fibers (SuF's), whose firing frequency is related to the ambient light intensity, were studied in the rock lobster. Most of the firing patterns shown under various conditions were demonstrated to be physiological, by using chronic implantation techniques. Unusual activity at high light intensities suggests that the lobster visual system is equipped to function only under dim light conditions. Unlike the crayfish, the lobster SuF's do not always indicate light levels but only changes in light intensity. It is suggested that the input from these fibers has a large influence on locomotor activity.