Geochemistry of Palaeozoic–Mesozoic Pacific rim orogenic magmatism, Thurston Island area, West Antarctica

first_imgThurston Island, and the adjacent Eights Coast and Jones Mountains, record Pacific margin magmatism from Carboniferous to Late Cretaceous times. The igneous rocks form a uniformly calc-alkaline, high-alumina, dominantly metaluminous suite; some relatively fractionated granitoids are mildly peraluminous. The magmas were hydrous, a result of subduction. Gabbros have compositions outside the range of mafic volcanic and hypabyssal rocks, as a result of cumulate processes. Trace element compositions of the mafic magmas range from a low La/Yb, Th/Ta end-member close to E-MORB in composition, perhaps contaminated by crust, to a high La/Yb, Th/Ta end-member, close to shoshonite, with strong magmatic arc trace element character. This variation may be a result of mixing of tholeiitic and shoshonitic end-members. Most silicic rocks could have been generated batch-wise from mafic magmas by fractional crystallization of a phenocryst assemblage dominated by plagioclase, pyroxene ± amphibole, as seen in the cumulates. Cessation of magmatism at about 90 Ma approximately coincided with collison of a spreading centre between the Phoenix and Pacific oceanic plates with the continent margin subduction zone. The rifting of New Zealand from West Antarctica and associated extension probably was responsible for emplacement of a coast-parallel Cretaceous dyke swarm.last_img read more

Investec launches environment strategy to target decarbonisation trend

first_imgInvestec – which runs $142.4bn (€125.3bn) globally – claimed the investable universe of companies for the new strategy opened up a “$2.5trn growth opportunity” for investors who were “exploring investment around long-term portfolio decarbonisation”. Investec Asset Management is to target investment in companies supporting the drive for decarbonisation with a new strategy launching today.The Investec Global Environment Fund will buy stakes in companies with “carbon avoided” scores, calculated using the EU’s emissions trading scheme methodology, which assesses how companies offset and reduce their carbon emissions.Deirdre Cooper, co-manager of the fund with Graeme Baker, said the data incorporated “Scope 3” emissions alongside environmental revenues. These are indirect carbon effects from a company’s value chain that are often omitted from common measures of carbon footprints.“The world has embarked on its third energy transition: a relatively rapid shift in favour of low-carbon energy,” Cooper said. “Electricity needs to take market share from all other forms of energy, as we electrify transportation and heating… Investment is required in all the related value chain.” Deirdre Cooper, Investec Asset ManagementThe estimated universe of funds was more than 700 companies, the asset manager said, with a total market capitalisation in excess of $5trn.Cooper said less than a third of the companies were in the MSCI ACWI index and none were in the FTSE 100.“They will grow a lot faster than the rest of the market,” she added.Pension funds, asset managers and other institutional investors have been placing greater emphasis on cutting the carbon footprints of their investments in recent years. More than 400 institutions have backed the Global Investor Statement to Governments on Climate Change since it was launched last year, calling for policy intervention on carbon pricing and other climate change policies. John Green, co-CEO of Investec Asset Management, said the new strategy emerged from a review of the group’s natural resources capabilities, which concluded that the future of the sector was set to change “radically”.“There’s an overwhelming sense that so much ESG investing is only about disinvestment and exclusion,” Green said. “There’s been very little discussion about what we do on the positive end – how does the pension fund community take positive steps on climate change?”While exclusion was an important part of climate change investing, Green argued that the same was true for portfolios that “positively and consistently invest in companies that impact and benefit from the energy transition”.“It surprises me that so little has been invested in this space: we estimate $15-20bn has been put to work. In context that’s a very small sum.”The fund launches today and “will be made available to both institutional and retail clients in key markets globally”, Investec said. Institutional share classes are priced at a 0.75% annual management charge.Further readingClean energy investment needs policy clarity on carbon price, say MPs A committee of MPs last year urged the UK government to extend carbon pricing to cover the whole economy to accelerate decarbonisation Energy transition ‘could seriously hit funding of Dutch schemes’ Dutch pension funds could lose up to 17 percentage points of their funding as a result of the energy transition, according to research by consultancy Sprenkels & VerschurenWorld leaders must do their bit in climate change fight, say investors Institutional investors active in the fight against climate change turned the spotlight on governments ahead of last year’s G7 summit in Canadalast_img read more

Bochy inches closer to milestone win in blowout led by Giants veterans

first_imgClick here if you’re unable to view the photo gallery on your mobile device.BALTIMORE — The bad days have outnumbered the good for both Jeff Samardzija and Evan Longoria since they joined the Giants, but on Sunday in Baltimore, the veterans shared the spotlight in a game the duo can consider one of its best.Longoria tied his season-highs with three hits and three RBIs while Samardzija recorded his fourth quality start in the last two years in a 8-1 series-clinching win over the worst team in …last_img read more

Stem Cells: Hope, Politics, Charity, and Clarity

first_imgThose promising little cells that can differentiate into almost any tissue continue to make news – but they also continue to generate controversy.  Actually, only some of them generate controversy: the embryonic stem cells.  Not all of the articles about stem cells make that clear. Defining life:  With the stroke of a pen, South Korea decided that frozen human embryos are not life forms.  PhysOrg reported that “The ruling means that human embryos that are in their early stage and are not implanted into a mother’s womb cannot be seen as human life forms,” even though they have a full complement of human DNA from a father and a mother.  Well, if that is the decision, fertility clinics are free to toss out any ethical concerns about them.  The embryos become non-persons.  The clinics can dispose of them, or turn them over to the Science Lab.  “Following the ruling, shares related to stem-cell research surged on the local market.”Your embryonic brain stem cells:  When you were a mere embryo in the womb, your developing pin-sized brain had special stem cells that were busy building the center of higher learning – the neocortex.  PhysOrg reported that neurologists at UC San Francisco discovered a stem cell in the human embryo “illuminates human brain evolution, points to therapies.”  It “likely accounts for the dramatic expansion of the region in the lineages that lead to man, the researchers say.”  Is this because mice and monkeys lack these stem cells in their brains?  Not exactly; it’s just that in primates and especially in humans, the complexity of the layers and types of stem cells is dramatic.  The scientists equivocated about the e-word, saying that their work follows the “molecular steps that the cell goes through as it evolves into the nerve cell, or neuron, it produces.”  So what’s politics got to do with it?  “This information could then be used to prompt embryonic stem cells to differentiate in the culture dish into neurons for potential use in cell-replacement therapy.”  But what would somebody else’s stem cells, with their DNA, do inside your head?  Is that ethical or desirable?No controversy in this heart:  The phrase “non-controversial” has a calming effect on a heart.  Science Daily began an article, “A new and non-controversial source of stem cells can form heart muscle cells and help repair heart damage, according to results of preliminary lab tests reported in Circulation Research: Journal of the American Heart Association.”  The source is amniotic membrane, a sac in which the embryo develops, which is a form of medical waste normally discarded after a baby’s delivery.  Now, it can be kept to derive stem cells to heal damaged hearts.  The press release from the American Heart Association said that the cells are not rejected, and transform into heart muscle cells that start beating spontaneously.  In experiments on rats, a significant percent of them survived for weeks and decreased scarring after a heart attack.  If clinical trials show this works on humans, saving up this previously discarded tissue for heart therapy would be a very loving thing to do.Spanish love:  Spanish scientists have turned fat into a lovely thing.  Science Daily reported that scientists at the University of Granada took stem cells from adipose tissue (fat cells) and reprogrammed them into cardiac myocytes – heart muscle.  “This technique could be used in the future for regeneration of cardiac muscles through the use of cells directly extracted from the patient.”  Wouldn’t that be cool?  Some day, your doctor might extract your fat and use it to repair your heart.    A somewhat similar study at the University of Texas was reported by PhysOrg.  Your own adult stem cells could be re-injected into your heart and start the repair process, scientists have found.  “Injection of a patient’s own adult stem cells into the heart has shown some efficacy in assisting recovery after a heart attack in early human clinical trials,” the article said.Hope for MS patients in bone:  Stem cells in bone marrow appear to offer hope for those with multiple sclerosis.  Science Daily reported that “A groundbreaking trial to test bone marrow stem cell therapy with a small group of patients with multiple sclerosis (MS) has been shown to have possible benefits for the treatment of the disease.”  This was a human trial with encouraging results: “The procedure was well tolerated and the participants were followed up for a year.  No serious adverse effects were encountered.”  Bone marrow stem cells are a form of adult stem cell, with no ethical or controversial issues; they can be taken from the patient and re-injected the same day.Seeing the way for an embryonic stem cell therapy?  A first step toward a possible use of embryonic stem cells was announced by Science Daily.  Researchers at UC Irvine have succeeded in coaxing human embryonic stem cells to differentiate into an “an eight-layer, early stage retina” in the lab.  This was in isolation from an actual eye.  “We made a complex structure consisting of many cell types,” the study leader said; “This is a major advance in our quest to treat retinal disease.”  It is hoped that creating retinal tissue might lead to treatments for macular degeneration, retinitis pigmentosa and other blinding diseases, but such actual therapies are a long way off.  The article did not say whether embryonic stem cells were required for this feat, or whether adult stem cells, such as induced pluripotent stem cells, could work just as well.An article on both embryonic and induced pluripotent stem cells in Science Daily this month was strangely silent about the controversy.  The focus was on understanding how these cells become pluripotent (i.e., able to differentiate into numerous cell types) – certainly an important issue.  But there was only this brief mention of the ethical controversy surrounding embryonic stem cells: “Because ethical and legal issues have hampered human ES cell research, mouse cells have provided a more viable platform for ES cell studies.”  On those ethical and legal issues, however, rides a great debate, millions of dollars, and fundamental questions about the value of human life.Is it right to do wrong to have a chance to do right?  Do the ends justify the means?  If there are two ways to get something done, and one is not controversial, why choose the controversial way?  Have we not learned that declaring someone a non-person is the first step to unspeakable abuses of human rights?    The proponents of embryonic stem cell research know how to play on your emotions with tear-jerking commercials of suffering people.  Californians saw that with their $3 billion stem cell initiative they couldn’t afford (02/08/2005).  What the pleading scientists don’t tell you is that (1) they stand to make a lot of money from tax-funded ES research, (2) embryonic stem cell research is getting stampeded by actual successes in the adult stem cell arena, and (3) ES research is tainted by desires to tinker with human cloning and chimeras (mixing human and animal cells).  Stay away from it.  They have nothing to show for it after years of hype and millions of dollars and one of the biggest scandals in the history of science.  Its advocates are primarily Darwinian leftist progressives.  They have mixed motives.  The practice of harvesting embryos opens up a potential shop of horrors, with markets for women selling their eggs, and catalogs of human body parts.  And with non-controversial iPS and adult stem cells available, we don’t need anything they’re selling.(Visited 9 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

Subscribe To The New ReadWriteTV YouTube Channel

first_imgA Web Developer’s New Best Friend is the AI Wai… eliot weisberg We’ve got an all new readwriteTV YouTube channel for all our videos, and we’d love for you to subscribe. If you’re subscribed to our SAY Media channel, you’ll get highlights for all our great SAY Media sites, but if you want all ReadWrite, all the time, subscribe to readwriteTV. Top Reasons to Go With Managed WordPress Hosting Why Tech Companies Need Simpler Terms of Servic… 8 Best WordPress Hosting Solutions on the Market Related Posts last_img read more

San Miguel to play Bridgeman vs Rain or Shine, still awaiting arrival of Terrence Watson

first_imgWATCH: Derrick Rose moved to tears after watching video tribute from Chinese fans Hotel says PH coach apologized for ‘kikiam for breakfast’ claim Lacson: SEA Games fund put in foundation like ‘Napoles case’ Celebrity chef Gary Rhodes dies at 59 with wife by his side MOST READ View comments LATEST STORIES NATO’s aging eye in the sky to get a last overhaul Sports Related Videospowered by AdSparcRead Next San Miguel Beermen. Tristan Tamayo/INQUIRER.netcenter_img Celebrity chef Gary Rhodes dies at 59 with wife by his side Don’t miss out on the latest news and information. Management and coaching staff wasted no time and has shopped around for a replacement, their third import in the season-closing conference, who has turned out to be Watson and is expected to plane in either late Tuesday or early Wednesday from the United States.But a ranking team official told the Inquirer that the Beermen would likely play Bridgeman against the Elasto Painters because coaching staff doesn’t feel that Watson would be able to have at least one practice with the team.FEATURED STORIESSPORTSSEA Games: Biñan football stadium stands out in preparedness, completionSPORTSPrivate companies step in to help SEA Games hostingSPORTSBoxers Pacquiao, Petecio torchbearers for SEA Games opening Ethel Booba on hotel’s clarification that ‘kikiam’ is ‘chicken sausage’: ‘Kung di pa pansinin, baka isipin nila ok lang’ Robredo should’ve resigned as drug czar after lack of trust issue – Panelo Trump signs bills in support of Hong Kong protesters San Miguel Beer, chasing to complete a rare Triple Crown sweep, will most likely play Terik Bridgeman against Rain or Shine in the 7 p.m. PBA Governors’ Cup contest on Wednesday as the Beermen await the arrival of new import Terrence Watson.Bridgeman, who came in to replace Wendell McKines, was a huge disappointment in his debut last Saturday, scoring just two points and grabbing six rebounds in a 79-90 loss to Alaska in Angeles City in Pampanga.ADVERTISEMENT Robredo: True leaders perform well despite having ‘uninspiring’ boss PLAY LIST 02:49Robredo: True leaders perform well despite having ‘uninspiring’ boss02:42PH underwater hockey team aims to make waves in SEA Games01:44Philippines marks anniversary of massacre with calls for justice01:19Fire erupts in Barangay Tatalon in Quezon City01:07Trump talks impeachment while meeting NCAA athletes02:49World-class track facilities installed at NCC for SEA Gameslast_img read more

International Day for the Elimination of Racial Discrimination

first_imgTouch Football Australia (TFA) is proud to affirm its commitment to ending racism on the International Day for the Elimination of Racial Discrimination. TFA has joined forces with some of Australia’s leading businesses, sporting bodies and NGO’s to support the “Racism. It stops with me” campaign, which is being led by the Australian Human Rights Commission. The campaign emphasises the importance of taking a stand against racism whenever it happens.One in seven Australians said they had experienced discrimination because of their colour or background in 2011, a figure that has been increasing steadily in recent years.TFA Chief Executive Officer, Colm Maguire, says TFA is full of support for the cause. “As a sport we are proud of our inclusive approach to participation. Diversity is one of our core values and we embrace all people that choose to play the sport of Touch Football.”Looking at our demographics at all levels, it is very clear that we are a leader in this area.”The International Day was proclaimed by the UN General Assembly in 1966, to coincide with the date in 1960 when police killed 69 people in Sharpeville, South Africa at a peaceful protest against apartheid laws. The theme for the International Day in 2013 is “Racism and Sport”.For more information about the ‘Racism: It Stops with Me’ campaign, or to find a range of anti-racism resources, go to: http://itstopswithme.humanrights.gov.au/ Or follow the campaign on Twitter @ItStopsWithMe. Related LinksRacism. It Stops With Melast_img read more

Wine tasting experience with Matthew Jukes

first_imgMatthew Jukes is returning to Canberra to host the 2013 Wine Dinner in conjunction with the 2013 Touch Football Vinnie-Yard.The dinner will be held at Old Parliament House on Friday, 8 November from 6.30pm.This is a unique opportunity to taste some of the season’s best wines and meet the wine makers from Brindabella Hills, Capital Wines, Clonakilla, Collector, Eden Road, Four Winds, Gallagher, Mt Majura, Nick O’Leary and RavensworthTickets are now available for purchase via the website below for $150 per person or a table of 10 for $1400 – www.vinnies.org.au/matthew-jukes-dinner-act.For more information on the 2013 Touch Football Vinnie-Yard event please click on the article below. Related LinksVinnie-Yard Wine Dinnerlast_img read more

10 months agoEx-Real Madrid president Calderon: Mourinho only coach Florentino trusts

first_imgTagsTransfersAbout the authorPaul VegasShare the loveHave your say Ex-Real Madrid president Calderon: Mourinho only coach Florentino trustsby Paul Vegas10 months agoSend to a friendShare the loveFormer Real Madrid president Ramon Calderon can see Jose Mourinho making a return.Calderon’s successor at Real, Florentino Perez, has been in contact with Mourinho – though that was before his sacking by Manchester United this week.Perez wanted Mourinho to replace Julen Lopetegui before he handed Santiago Solari a three-year contract.Calderon said, “A return for Mourinho to Real Madrid? Everyone here knows that it’s up to the president. I think he is the only coach he respects. The current president does not really trust the coaches. But in the case of Mourinho, he really, really supported him several times in difficult times. “When Lopetegui left, I said, ‘I’m sure Mourinho will be here and I do not exclude that he will be in Real in the near future’.” last_img read more