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Global Sea Levels Likely To Rise Higher In 21st Century Than Previous Predictions

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first_img Published: Feb. 15, 2002 Share Share via TwitterShare via FacebookShare via LinkedInShare via E-mail New calculations by a University of Colorado at Boulder researcher indicate global sea levels likely will rise more by the end of this century than predictions made by the Intergovernmental Panel on Climate Change in 2001. The projected sea-level rise is due to a revised estimate of the ice melt from glaciers, said geological sciences Emeritus Professor Mark Meier. Meier presented the findings Feb. 16th at a meeting of the American Association for the Advancement of Science in Boston. Meier and CU-Boulder colleague Mark Dyurgerov have collected new data showing the world's glaciers and ice caps have exhibited significant ice loss in the 20th century, which has accelerated since 1988. That loss has contributed to at least 20 percent of the observed rise in sea level, said Meier.  "Some glaciers around the world now are smaller than they have been in the last several thousand years," he said. "The rate of ice loss since 1988 has more than doubled," said Meier, a researcher and former director of CU-Boulder's Institute for Arctic and Alpine Research. Dyurgerov also is an INSTAAR researcher. Meier said the IPCC report might have underestimated the wastage of glaciers and ice caps around the word -- excluding Greenland and Antarctica -- for several reasons. The IPPC did not include increases in ice wastage since the late 1980s, an apparent increase in the sensitivity of ice wastage to both temperature and precipitation, and a probable increase in melting from small, cold glaciers surrounding the Greenland and Antarctic ice sheets, he said. In addition, new data from colleagues at the University of Alaska show that huge glaciers on the West Coast of Alaska and northern Canada are wasting rapidly, said Meier. The melting of these large glaciers has contributed roughly 0.14 millimeters per year in sea rise over the long-term, according to calculations by Meier and Dyurgerov, jumping to more than 0.32 millimeters per year during the last decade. The IPCC, which estimated global ice wastage of only 0.3 millimeters per year, probably underestimated the contribution of glacier disintegration to sea-level rise because little data on the large, maritime glaciers in Alaska was available, said Meier. But this region is the largest contributor to sea-level rise, he said. "The sensitivity of glacier melt to temperature rise depends largely on precipitation, which in some 'glaciered' areas like southern coastal Alaska has been greatly under-measured," said Meier. "The large glaciers of Alaska and adjacent Canada currently are contributing about half of the rate of global ice loss, exclusive of Greenland and Antarctic ice sheets," said Meier. "But they contain only 17 percent of the glacier ice area." The new data suggests the IPCC calculation for the 21st century -- a total of 0.16 to 0.36 feet -- was an underestimate, said Meier. He calculated that glacier melting could contribute 0.65 feet or more to sea level this century. The IPCC estimated that other processes such as ocean warming would cause an additional 0.36 feet to 1.4 feet of sea-level rise by the year 2100, Meier said. "These estimates in sea-level rise may seem small, but a 1-foot rise in sea level typically will cause a retreat of shoreline of 100 feet or more, which would have substantial social and economic impacts," Meier said. Meier said that in the United States, some large coastal cities like Houston "are not much above sea level now." He also said island nations such as Seychelles off the West Coast of Africa and Kiribati southwest of Hawaii are within a meter of being inundated by sea rise. In addition, sea rise of only 1 meter in Bangladesh would put one-half of the nation underwater, displacing more than 100 million people.last_img

Telstra’s new CEO adds $385M to mobile capex budget

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first_img Joseph Waring joins Mobile World Live as the Asia editor for its new Asia channel. Before joining the GSMA, Joseph was group editor for Telecom Asia for more than ten years. In addition to writing features, news and blogs, he... Read more Telstra to delist from New Zealand exchange UPDATED 11/7: Telstra’s new CEO, Andrew Penn, said in his first speech that the country’s mobile leader will invest an additional AUD500 million ($385 million) in its mobile network, bringing its planned mobile investment to more than AUD5 billion over the next three years.Penn (pictured), who took the helm from David Thodey in May, said it will boost capex to 15 per cent of sales for the next two years, as it expands its 4G footprint to 99 per cent of the population.As part of that investment, it will add 750 base stations, increasing its total to over 9,000 sites and deploy more than 750 small cells to provide in-fill in areas of low signal strength.He noted that Telstra was awarded more than 80 per cent of the government’s black-spot programme and will build 429 3G/4G towers as well as install 250 4G data-only small cells in remote towns over the next three years.Three trendsSpeaking at a Committee for Economic Development of Australia event earlier this week on the topic of “Connecting with the future”, he referred to three key trends that are driving technological innovation. The first is the rapid move to mobile, which everyone is aware of.The second is moving data off the premises to the cloud. He noted that the most complex aspect of the cloud is not running the data centre or the software. “It is not a complex IT problem in the conventional sense. It is getting the data in and out of the cloud at speed and securely through the network, which is a telecommunications challenge.”He pointed to the recent acquisition of Pacnet, which will be a key strategic asset as Telstra provides critical network infrastructure to expand its cloud services in the region.“Our cloud business has been growing at 20-30 per cent per annum over the last three years — with Pacnet we are very well placed to continue strong growth in the future as we expand into Asia.”The third trend, and perhaps most significant area, he said is machine learning.While people are all familiar with big data, which will accelerate with the rise of connected devices and the cloud, he said that the combination of these, with advancements in machine learning, is “taking us into the world of artificial intelligence and it is in this area that the rate of innovation is accelerating the fastest”. Australia completes 26GHz auction Author Telstra earmarks $116M to boost rural coverage Asia Previous ArticleProximus to roll out low-power IoT network in Belgium and LuxembourgNext ArticleVodafone, Ericsson start UK small cell test center_img Related HomeAsiaNews Telstra’s new CEO adds $385M to mobile capex budget Tags AddThis Sharing ButtonsShare to LinkedInLinkedInLinkedInShare to TwitterTwitterTwitterShare to FacebookFacebookFacebookShare to MoreAddThisMore 10 JUL 2015 Joseph Waring AustraliaCAPEXmobile network investmentTelstralast_img

More Cellular Roles Found for RNA

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first_img Email Print Google+ Linkedin Twitter Share Congratulations to Science Magazine for an Honest Portrayal of Darwin’s Descent of Man Previously relegated to servant tasks under the master DNA molecules, ribonucleic acids continue to surprise scientists with a multitude of important roles in the cell. Here are just a few making the news.Orchestrators of ExecutionCells that go awry must be killed. Cell death is a carefully controlled process, involving two pathways: autophagy (“self-eating”) and apoptosis (programmed cell death). Apoptosis releases molecular machines called caspases that can cut up the components of a cell. Both processes are fairly well known, but a paper in PNAS reports the discovery of a “micro-RNA” that plays a critical role in the balance between the two. Welcome miRNA-378 to the captain’s lounge:Muscle wasting and weakness can be observed under either physiological or pathological conditions, which are partly due to an imbalance between autophagy (“self-eating”) and apoptosis (“self-killing”). How microRNAs coordinate autophagy and apoptosis in the metabolic regulation of cell death remains largely unknown. This work identifies miR-378 as a critical component of metabolic checkpoints, which integrates metabolic information into an adaptive response to reduce the propensity of myocytes [muscle cells] to undergo apoptosis by enhancing autophagy and suppressing apoptosis via directly targeting phosphoinositide-dependent protein kinase 1 and Caspase 9, respectively. Our study highlights a crucial role of miR-378 in maintaining normal muscle homeostasis by orchestrating autophagy and apoptosis processes and provides a potential therapeutic target to treat myopathies. [Emphasis added.]Notice the number of design words in this quote. The microRNA orchestrates. It integrates information. It coordinates the balance between two pathways. It targets other molecules. It balances and regulates, ensuring that checkpoints are respected. As a “critical component” with a “crucial role,” miR-378 deserves our respect and gratitude. Look what happens when it fails to perform its role in the “sophisticated” metabolic regulation of cell death: “our data suggest that inflammation-induced down-regulation of miR-378 might contribute to the pathogenesis of muscle dystrophy.” Remember all those Labor Day telethons by Jerry Lewis? Who would have thought that a cure might come by fixing a tiny little micro-RNA molecule? MicroRNAs are small, typically 20 to 24 nucleotides in length (NCBI). This one plays a big role for a small actor.Site-Specific ActivityMicroRNAs were thought to act the same regardless of location. Zhang et al, writing in Nature Structural and Molecular Biology, found one that functions only with ORFs (open reading frames). This suggests the exciting possibility that some microRNAs “may use a translational quality-control-related mechanism to regulate translation in mammalian cells.”RNA OrganizationA couple of guys pictured in news from the University of Montreal use the risky phrase, “we now know” in their headline, “We now know how RNA molecules are organized in cells.” Well, perhaps they know a little bit about some RNA molecules, namely the messenger-RNA transcripts that ferry genetic information to the ribosomes for translation. For ease of understanding, the old Unlocking the Mystery of Life animation showed one of these mRNAs as a long, rigid molecule. Actually, due to intermolecular forces, mRNAs fold up and compact. Most biochemists believed the ends connected into a “closed-loop complex” that remained stable. Using super-resolution microscopy, lead author Daniel Zenklusen and his team were “very surprised” to find that a “decades-old dogma” is not correct:It has long been thought that all messenger RNA, or mRNA, molecules acquire a specific conformation during protein synthesis: the two ends of the molecule coming together to form a stable so-called closed-loop complex. This new study shows that this long-standing model is oversimplified, according to Zenklusen and his team.Their paper in Molecular Cell reveals that some mRNAs become very compact – so much so that they resist translation. They suspected this compaction regulates translation into proteins:In collaboration with the laboratories of Olivia Rissland at the University of Colorado and Bin Wu at Johns Hopkins University in Baltimore, the UdeM scientists found that the messenger RNAs of cells can exist in many conformations but mostly as very compact molecules. This is most pronounced when protein synthesis is suppressed or messenger RNAs are sequestered to specific subcellular compartments such as stress granules….Stress granules look like the useless clumps that pathologists find in the brain in neurodegenerative diseases. These clumps, however, appear to play active roles, down-regulating translation when a cell is under stress. The dense clumps of RNA and protein hinder translation, which could be a good thing in bad times. A 2016 paper in Trends in Molecular Biology indicates that stress granules must be important, because mutations in them can lead to degenerative disease. The granules “are dynamic and show liquid-like behaviors but also contain stable substructures.” Perhaps they safeguard mRNAs and their related assisting machines when it’s not a good time for translation. “Stress granule formation modulates the stress response, viral infection, and signaling pathways,” the authors say. The ability of these granules to shift between solid and liquid states is undoubtedly related to their activity.Solid-State EngineeringSpeaking of liquid-like behaviors, another article suggested that liquid “droplet” formation is vital to the organization of cells. Not all components of a cell are neatly sequestered in organelles. Some float in the cytoplasm. How do those stay organized?South Korean scientists are “Trying to Understand Cells’ Interior Design,” according to news from the Institute for Basic Science. What’s the opposite of dumb and careless? Watch their description:How do you imagine the interior of our cells? Often compared to tiny factories, cells found smart and sophisticated ways to organize their ‘interior’. Most biological processes require cells to bring together their ‘employees’, such as proteins and nucleic acids (like DNA), at the right time. Scientists at the Center for Soft and Living Matter, within the Institute for Basic Science (IBS, South Korea), have explained how liquid-like droplets made of proteins and DNA form in vitro. Currently, there is a huge interest in understanding the molecular mechanisms behind the creation of such droplets, as it is linked to some human diseases, such as amyotrophic lateral sclerosis (ALS). The results, published as a featured article in Biophysical Journal, showed how much the sequence of DNA matters in the formation of such droplets.The droplets consist of DNA, ATP and proteins (and RNA, which are mentioned in the paper). By experimenting on custom DNA strands, they found differences in the stiffness of DNA helices depending on whether they were composed of A-T base pairs or G-C base pairs. The former are more rigid; the latter, more fluid, allowing them to condense into droplets more readily. In addition, ATP facilitates the formation of the droplets. So here we have another way cells can regulate their activity, taking advantage of solid- and liquid-phase transitions. This is all tied into the base sequence of the DNA or RNA. This is a perfect platform to examine how the flexibility of nucleic acids affects liquid-liquid phase separation. “The most fascinating part is to imagine how cells may take advantage of this sequence-dependent information to guide and regulate liquid-liquid phase separation in vivo,” concludes [Anisha] Shakya, [the key contributor to the study.]Perhaps we can now add a “phase code” to the information stored in the cell, which affects the activity of components floating around in the cytosol. Consistent with intelligent design predictions, the closer you look at life, the better it gets.Image credit: Illustra Media. Jane Goodall Meets the God Hypothesis Email Print Google+ Linkedin Twitter Share Evolution NewsEvolution News & Science Today (EN) provides original reporting and analysis about evolution, neuroscience, bioethics, intelligent design and other science-related issues, including breaking news about scientific research. It also covers the impact of science on culture and conflicts over free speech and academic freedom in science. Finally, it fact-checks and critiques media coverage of scientific issues. Share TagsAnisha ShakyaapoptosisATPautophagyBin WuBiophysical JournalcellcytosolDaniel ZenklusenDNAhomeostasisInstitute for Basic ScienceJerry LewisJohns Hopkins UniversityLabor DayMicroRNAsmiR-378Molecular CellNature Structural and Molecular BiologyOlivia RisslandPNASRNASouth KoreaTrends in Molecular BiologyUniversity of ColoradoUniversity of MontrealUnlocking the Mystery of Life,Trending Requesting a (Partial) Retraction from Darrel Falk and BioLogos Intelligent Design More Cellular Roles Found for RNAEvolution News @DiscoveryCSCNovember 15, 2018, 3:59 AM “A Summary of the Evidence for Intelligent Design”: The Study Guide Recommended A Physician Describes How Behe Changed His MindLife’s Origin — A “Mystery” Made AccessibleCodes Are Not Products of PhysicsIxnay on the Ambriancay PlosionexhayDesign Triangulation: My Thanksgiving Gift to All Origin of Life: Brian Miller Distills a Debate Between Dave Farina and James Tourlast_img

‘We must use powerful pack’

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first_img' Datemyage.comAdvertisement Meet Singles Your Age Near Tsuen WanDatemyage.com|SponsoredSponsoredUndoAaron Smith names South African as greatest World Cup scrumhalfSA Rugby MagUndoFrom the magazine: Jano Vermaak names his Perfect XVSA Rugby MagUndoMoneyMorningPaperThe 10 Richest Families Of The World. Especially No. 6 Is A Complete Surprise.MoneyMorningPaper|SponsoredSponsoredUndo Posted in Stormers, Super Rugby, Teams, Top headlines, Tournaments READ: Stormers spring Lobberts surprise 熱門話題對肚腩脂肪感到後悔!試了在萬寧賣的這個後…熱門話題|SponsoredSponsoredUndo ' ' BuzzAura16 Cancer Causing Foods You Probably Eat Every DayBuzzAura|SponsoredSponsoredUndo ' Post by SA Rugby magazinecenter_img Coach John Dobson chats about the Stormers’ game-plan preparations for the season and the reasons behind Hilton Lobberts’ inclusion for this weekend’s friendlies. CNAHow is life for Cambodian boy linguist after viral fame?CNA|SponsoredSponsoredUndo World Cup-winning Bok quartet in Eddie Jones' all-time XVMaverick coach Eddie Jones has named his Test dream team made up of players he has worked with throughout his illustrious career.SA Rugby MagUndoDatemyage.comOver 40 And Single?Datemyage.com|SponsoredSponsoredUndo贷款| 搜索广告在香港獲得貸款可能比您想的要容易贷款| 搜索广告|SponsoredSponsoredUndoLife Exact BrazilRemember Grace Jones? She Is Almost 73, See Her NowLife Exact Brazil|SponsoredSponsoredUndoLoans | Search AdsLooking for loan in Hong Kong? Find options hereLoans | Search Ads|SponsoredSponsoredUndoGrammarlyAvoid Grammatical Errors with This Helpful Browser ExtensionGrammarly|SponsoredSponsoredUndo ' ' Watch: I wanted to rip Jean's head off – Jaque FourieSA Rugby MagUndo ‘We must use powerful pack’ Video published on January 9, 2020 last_img

Further your education with the Community Trust

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first_imgThe club's official charity has continually grown in strength and capacity and can now enable learners to develop life skills, maximise career choices and opportunities through carefully designed qualifications, no matter what their academic or practical level. Subsequently, the Trust attract and accept a variety of students on to each of their courses, which range from post-16 to degree level.AVAILABLE COURSES- BA (Hons) Sports Business and Entrepreneurship (University of the West of England) - Fnd in Community Sports Coaching and Development (University of South Wales) - Fnd in Community Football Coaching and Development (University of South Wales) - BTEC Level 3 in Sport - Boys Futsal Programme (Ashton Park School)- BTEC Level 3 in Sport - Girls Futsal Programme (Ashton Park School)- BTEC Level 3 in Sport - Tennis Coaching Scholarship (Ashton Park School) - BTEC Level 3 in Sport and Creative Media (Boomsatsuma/Cabot Learning Foundation) - BTEC Level 3 in Enterprise and Entrepreneurship - BTEC Level 3 in Sport - Boys and Girls Football Programme (Merchants Academy) - BTEC Level 2 in Sport - Boys and Girls Football Coaching Programe (Bridgwater and Taunton College)last_img

Bombers finish sixth overall at BC High School AA Girl’s Soccer Championships

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first_imgThe L.V. Rogers Bombers finished the BC High School AA Girl's Soccer Championship in sixth spot following a loss to Ballenas of Parksville in consolation round match Saturday.The Bombers dropped a 4-0 decision to the high-powered Vancouver Island squad. However, the sixth-place finish is one of the better results for the Heritage City school in provincial play.LVR opened the tournament Thursday with a 3-0 loss to St. Michael's University of Victoria.The Bombers then reeled off three consecutive wins to reach in round-robin and playoff action over Crofton House of Vancouver, Brookswood of Langley, Holy Cross of Vancouver to reach Saturday's five/six playoff showdown.Naomi Perkins led LVR in scoring with three goals. Emma and Jenna Wheeldon along with Ali Zondervan also scored for the Bombers.LVR advanced to the 16-team tournament as the Kootenay rep after defeating David Thompson of Invermere and J. Lloyd Crowe of Trail in the Zone Championship in May.last_img

Mallard’s Team of the Week — LVR Bombers Basketball Alumni

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first_imgGrads from L.V. Rogers Bombers Basketball program returned to the Hangar Boxing Day to compete in the Blair D'Andrea Alumni Basketball Tournament during the Christmas holidays. Grads 1989-2003 swept through the opposition to repeat as champs.The Blair D'Andrea Alumni Scholarship Society was established in 2012 and has been instrumental in supporting local post-secondary student-athletes, Nelson Hoops grassroots minor basketball initiatives, the Kootenay Chill Club Basketball program, the LVR basketball programs, and the West Kootenay Men's Basketball League through scholarships, donations and equipment.Mallard’s Source for sports would like to salute the Bomber Grads with Team of the Week honours.Pictured are the players from yesteryear who competed in the one-day tournament.For more information on how to donate or get involved with initiatives run by the Blair D'Andrea Alumni Scholarship Society please email [email protected]last_img

Gardaí warn of home burglaries during Papal visit

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first_imgGardaí are warning the faithful attendees of Papal events that they should take precautions to prevent burglars targetting their empty homes. Up to 750,000 people are expected to attend the World Meeting of Families (WMOF) events over Saturday and Sunday August 25 and 26.The Papal mass with Pope Francis in Dublin’s Phoenix Park will draw half a million people from their homes, while 45,000 tickets are booked for Knock Shrine. Gardaí are set to increase patrols nationally this weekend in a bid to catch burglars planning to break into empty homes.People leaving homes this weekend are being reminded to secure their homes and ask neighbours to check in on their properties.Gardaí recommended steps for home security and burglary prevention include: securing all doors and windows; light up your home; use timer switches when out; store keys safely and away from windows; record details of all valuables; don’t keep large amounts of cash at home; use your alarm even when at home.   Gardaí warn of home burglaries during Papal visit was last modified: August 23rd, 2018 by Staff WriterShare this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Skype (Opens in new window)Click to print (Opens in new window)last_img

a month ago​MLS looking at sponsorship for VAR

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first_imgTagsMLS NewsAbout the authorIan FerrisShare the loveHave your say ​MLS looking at sponsorship for VARby Ian Ferrisa month agoSend to a friendShare the loveMajor League Soccer (MLS) is 'actively selling' sponsorship inventory for the match breaks created by video assistant referee (VAR) technology, according to league executive Carter Ladd, reports, www.sportspromedia.com/.The North American soccer league's senior vice president of business development, confirmed to the Sports Business Journal (SBJ) that MLS is engaged in a "couple of ongoing conversations" with companies interested in sponsoring VAR, which was introduced to the league in 2017.The SBJ's report added that one in three MLS matches this season have involved a VAR review, which is intended to correct clear and obvious errors made by the on-field officials relating to major moments such as goals, penalties and red cards.MLS also told the SBJ that a potential VAR sponsorship could see a brand be on screen for the entire length of a review, while the company could also get mentioned by broadcasters."There's very, very few opportunities where a brand can become part of the fabric of the sport in a meaningful way," said Ladd of a potential VAR sponsorship, speaking to the SBJ. He added: "If there's going to be some sort of product integration [with VAR], it's got to be authentic. It's got to be endemic." last_img

a month agoEverton boss Marco Silva: Positives in Man City defeat

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first_imgAbout the authorPaul VegasShare the loveHave your say Everton boss Marco Silva: Positives in Man City defeatby Paul Vegasa month agoSend to a friendShare the loveEverton boss Marco Silva felt they weren't strong enough in attack for defeat to Manchester City.Silva's team suffered a third consecutive Premier League defeat at Goodison Park on Saturday evening after goals from Gabriel Jesus, Riyad Mahrez and Raheem Sterling overcome Dominic Calvert-Lewin's first-half opener. "We didn't get the most important thing in football, as you know, which is the result, but we got some positives for sure from the game," the manager explained afterwards."Analysing the game, we didn't start like we wanted to. They started the game strong, faster with the ball than us, more aggressive than us."Until the goal they scored, the first, they were clearly better than us. After that we showed that reaction and desire to challenge them and try and get a different result."The reaction was really good and after that the game was more balanced with the possession and the quality they have to break that immediate pressure in some moments." last_img