Life-history consequences of predation for a subantarctic beetle: evaluating the contribution of direct and indirect effects

first_img1. Recently, a small predatory beetle, Trechisibus antarcticus (Carabidae), was accidentally introduced onto the island of South Georgia, sub-Antarctic.2. From the presumed site of introduction the beetle is invading the coastal lowland area, building up high densities locally in the tussock-forming grass Parodiochloa flabellata. 3. In the coastal area the endemic detritivorous/herbivorous beetle Hydromedion sparsutum (Perimylopidae) is common, especially in and beneath the tussocks.4. The first three, out of six, larval instars of H. sparsutum are easily taken prey by the carabid.5. In sites colonized by the carabid, total abundance and the ratio between larval and adult numbers of H. sparsutum are far lower, and its adult body size clearly larger, than in comparable sites where the carabid is absent.6. Two hypotheses are proposed for explaining the increase in adult body size of H. sparsutum: (i) the increase is a direct effect of predation: selection by the predator favours large hatchlings and/or larvae with a high growth rate; and (ii) the increase is an indirect effect of predation: by lowering the density of H. sparsutum, predation has increased its per capita food supply, enabling a higher growth rate and a larger adult body size.7. A food addition experiment in a carabid-free site showed availability of high quality food to be insufficient for sustaining the initial larval population.8. In the laboratory, females from the predator-infested sites produced larger eggs and hatchlings than females from the carabid-free sites, but mass specific growth rates of the larvae were not higher.9. Field and laboratory data give stronger support to the food hypothesis than to the size selectivity hypothesis.last_img read more

USS Laboon Leaves Gaeta, Italy

first_img View post tag: Navy March 18, 2015 Authorities View post tag: Gaeta View post tag: Leaves View post tag: europe Back to overview,Home naval-today USS Laboon Leaves Gaeta, Italy Share this article The US Navy’s Arleigh Burke-class guided-missile destroyer USS Laboon departed Gaeta, Italy.The vessel, which left the port on March 12, took a short break from its busy schedule.Laboon, homeported in Norfolk, is conducting naval operations in the U.S. 6th Fleet area of operations in support of U.S. national security interests in Europe.[mappress mapid=”15427″]Naval Today Staff, Image: US Navy USS Laboon Leaves Gaeta, Italy View post tag: News by topic View post tag: USS Laboon View post tag: Italylast_img read more

Research Technologist

first_img Research Technologist Maryland, United States GeneralSummary/PurposeThe Research Technologist will perform cutting-edgeresearch into the mechanisms of drug resistance in breast cancer.The start date is negotiable and can range from January-March 2021.The lab is dedicated to the study of therapeutic resistance inbreast cancer. Equally important to our mission is the training ofthe next generation of cancer researchers. Our goal is to lessenthe public health burden of breast cancer throughscience.The research technologist has the opportunity towork on one or more of several projects available in the labfocusing on transcriptional control of resistance, therapeuticvulnerabilities of resistant cancer, and large-scale oncogenevariant-to-function efforts.Specific Duties &ResponsibilitiesPerforming laboratoryexperiments following instruction or established protocols, as partof a collaborative scientific team. Documenting, compiling, andanalyzing experimental data accurately. Participating in regularlab and small group meetings. Reporting findings in oral andwritten formats, including maintaining an updated laboratorynotebook. Maintaining and organizing the lab, including keepingtrack of supplies and reagents, and ordering and stocking thelab.Minimum Qualifications(Required)Bachelor’s degree in biological sciences, chemistryor related field is required.PreferredQualificationsPrior research experience in a laboratory settingis preferred, although not required.We are looking for candidates who work well withothers, are enthusiastic to learn, and motivated to contribute tothe scientific and mentorship goals of thelab.Some related post-undergraduate work experiencepreferred.Special Knowledge, Skills, andAbilitiesMaterials, machines and/or equipment used on thejob include balances, pH meters, centrifuges, electrophoresissystem, microscopes, UV and visible spectroscopy, and incubatorsfor growing mammalian cell lines and bacterialcultures.Classified Title: ResearchTechnologistWorking Title: Research Technologist ​​​​​Role/Level/Range: ACRO37.5/02/CCStarting Hourly Pay Rate Range:$14.14 – $19.44/Commensurate with experienceEmployee group: Full TimeSchedule: Monday – Friday, 37. 5 hrs perweekExempt Status: Non-ExemptLocation:05-MD:School of Public HealthDepartment name: 10001066-Biochemistry and Molecular BiologyPersonnel area: School of Public HealthThe successfulcandidate(s) for this position will be subject to a pre-employmentbackground check.If you are interested inapplying for employment with The Johns Hopkins University andrequire special assistance or accommodation during any part of thepre-employment process, please contact the HR Business ServicesOffice [email protected] For TTY users, call via MarylandRelay or dial 711.The followingadditional provisions may apply depending on which campus you willwork. Your recruiter will adviseaccordingly.During the Influenza (“theflu”) season, as a condition of employment, The Johns HopkinsInstitutions require all employees who provide ongoing services topatients or work in patient care or clinical care areas to have anannual influenza vaccination or possess an approved medical orreligious exception. Failure to meet this requirement may result intermination of employment.The pre-employmentphysical for positions in clinical areas, laboratories, workingwith research subjects, or involving community contact requiresdocumentation of immune status against Rubella (German measles),Rubeola (Measles), Mumps, Varicella (chickenpox), Hepatitis B anddocumentation of having received the Tdap (Tetanus, diphtheria,pertussis) vaccination. This may include documentation of havingtwo (2) MMR vaccines; two (2) Varicella vaccines; or antibodystatus to these diseases from laboratory testing. Blood tests forimmunities to these diseases are ordinarily included in thepre-employment physical exam except for those employees who provideresults of blood tests or immunization documentation from their ownhealth care providers. Any vaccinations required for these diseaseswill be given at no cost in our Occupational Healthoffice.Equal OpportunityEmployerNote: Job Postings are updated daily and remain online untilfilled.EEO is theLawLearn more: Share Apply(This will open in a new window from which you will be automatically redirected to an external site after 5 seconds) Twitter Save Research Technologist Salary Not Specified Similar jobs Maryland, United States Other Science & Technology Not specified Full Time jobs in Baltimore Science, Technology & Mathematics Not specified Full Time jobs in Baltimore Johns Hopkins University Administrative Not specified Full Time jobs in Baltimore You need to sign in or create an account to save LinkedIn Research Technologist School of PublicHealth – East Baltimore Campus You need to sign in or create an account to save Save Research Technologist You need to sign in or create an account to save Maryland, United States Facebook Faculty Positions Not specified Full Time jobs in Baltimore Johns Hopkins University Salary Not Specified Save Research Technologist More searches like this Research Technologist Salary Not Specified Johns Hopkins University The successful candidate(s) for this position will be subject to apre-employment background check.If you are interested in applying for employment with The JohnsHopkins University and require special assistance or accommodationduring any part of the pre-employment process, please contact theHR Business Services Office at [email protected] For TTYusers, call via Maryland Relay or dial 711.The following additional provisions may apply depending on whichcampus you will work. Your recruiter will adviseaccordingly.During the Influenza (“the flu”) season, as a condition ofemployment, The Johns Hopkins Institutions require all employeeswho provide ongoing services to patients or work in patient care orclinical care areas to have an annual influenza vaccination orpossess an approved medical or religious exception. Failure to meetthis requirement may result in termination of employment.The pre-employment physical for positions in clinical areas,laboratories, working with research subjects, or involvingcommunity contact requires documentation of immune status againstRubella (German measles), Rubeola (Measles), Mumps, Varicella(chickenpox), Hepatitis B and documentation of having received theTdap (Tetanus, diphtheria, pertussis) vaccination. This may includedocumentation of having two (2) MMR vaccines; two (2) Varicellavaccines; or antibody status to these diseases from laboratorytesting. Blood tests for immunities to these diseases areordinarily included in the pre-employment physical exam except forthose employees who provide results of blood tests or immunizationdocumentation from their own health care providers. Anyvaccinations required for these diseases will be given at no costin our Occupational Health office.Equal Opportunity EmployerNote: Job Postings are updated daily and remain online untilfilled.EEO is the LawLearn more: legal information Academic Affairs Not specified Full Time jobs in Baltimorelast_img read more

And Now for Something Completely Different

first_imgOxford, the site of so many significant scientific discoveries, is the perfect place for a History of Science Museum. Largely ignored despite its prominent position on Broad Street next to the Sheldonian (yes, that’s the building with the heads…), the permanent displays are well worth a visit. The display cabinets chart centuries of scientific endeavour: the highly ornate instruments reminding you that science can be beautiful as well as utilitarian. Even if you’re not a scientist (perhaps especially if you’re not a scientist) you should pay this place a visit. However, this month in particular, there are two exhibitions which you should visit.  The Book of Imaginary Science is a series of sculptures by Roddy Bell. It is an exhibition concerned with ways of seeing. Alice Liddell’s Camera explores the dichotomy between reality and fantasy, self-perception and self-image. John Dee’s Angel of the Hours Clock is a beautiful and complex exploration of belief, and the desire to see the divine, the rotating contraption almost as fragile and ephemeral as the angels supposed to appear on them, ‘projected from the eye’ of a believer. All five pieces explore notions of personal identity and reality; in particular, the relationship between image and truth. The pieces are interspersed amongst the long-term residents of the museum’s collection, further blurring the lines between fact and fiction. Small Worlds is a series of rooms through which one walks, handset of poetry pressed to one ear, each room immersing you in a new microscopic world. The wallpaper and curtains (each ushering you into a new room) are printed with pictures of diatoms with fabulous names. The wall when you enter is covered with pictures of microscopic objects, some man-made, some natural: some identifiable: some wholly alien – the stomach bones of a starfish, the curve of a fly’s cornea. The exhibition is an exploration of scale and our place in this universe: at once tiny and insignificant, and hopelessly huge and isolated from a fascinating and gorgeous microverse. ‘“The nebula’s terror when it thinks of the atom” – a line in one poem sums it all up. Prepare to feel clumsy, inept, and out of scale when you leave.  The Book of Imaginary Science runs from 25th September to 25th November Small Worlds runs from 31st October to 6th AprilEntrance is free Cherwell24 is not responsible for the content of external linkslast_img read more

Which? research supports calls for salt reduction

first_imgConsumer watchdog Which? said its recent consumer taste test of wholemeal bread showed it was possible to cut salt levels in bread and still deliver good flavour and texture.In research carried out by Which? Magazine, 187 testers tasted 561 slices of branded and supermarket own-label wholemeal bread. Hovis and Kingsmill came out on top, scoring top marks for taste and texture, followed by Warburtons and M&S Wise Buys loaf. Senior researcher Shefalee Loth said the M&S loaf, which had a salt content of 0.9g per 100g (lower than the FSA’s 2012 target of 1g per 100g), “proved that it was technically possible to develop bread that has reduced salt levels, which was acceptable to consumers”. “There was no correlation between the salt values per 100g and the performance of the breads in our taste test,” she added.Salt levels for Hovis and Kings-mill stood at 1.05g, and Warbur-tons at 1.08g. The bread with the highest salt content was Asda Square Cut Medium Sliced, with 1.1g of salt per 100g. It scored three out of a possible five stars for taste and four for texture.Which? has campaigned for a reduction in salt levels in food to meet the FSA’s revised 2012 salt targets. Earlier this year, Which? chief policy adviser Sue Davies said: “The food industry must commit to meeting these new targets if it is serious about combating diet-related disease.”last_img read more

News story: Master and vessel owner ordered to pay £28,610 for fisheries offences

first_imgWilhelmina LT60 is a British registered 35 metre fishing vessel operated by a Dutch company and master, which primarily targets plaice and Dover sole in the North Sea. The court heard that enforcement checks of the vessel’s statutory documentation showed that it had exceeded the permitted 10% margin of tolerance in its fishing logbook on 41 occasions. Six charges were brought before the court and the defendants asked for the other 35 offences to be taken into consideration.The vessel owner Wilhelmina Beheer B.V. and skipper Jelle Toering both pleaded guilty to all charges and offences.Wilhelmina Beheer B.V. was fined £3,000 for each offence (£18,000 in total), £2,000 in costs and a victim surcharge of £170. Jelle Toering was fined £1,295 for each offence, (£7,770 in total), £500 in costs and a victim surcharge of £170.A spokesperson for the MMO said: The outcome of this enforcement action shows that non-compliance with the requirement to submit an accurate electronic logbook will be detected and dealt with appropriately, with the offending company facing fines in appropriate circumstances. In cases like this the MMO will always take proportionate and appropriate action, including prosecution, to ensure offenders do not benefit from illegal activity and to protect fish stocks for the wider fishing industry and future generations.last_img read more

Poll analysis finds failure of Senate ACA replacement bill related to huge divisions among Republicans and between parties

first_imgA new in-depth analysis of results from 27 national public opinion polls by 12 survey organizations finds that the failure of the recent U.S. Senate debate over proposals to repeal and replace the Affordable Care Act (ACA) relates to deep divisions among Republicans, as well as between Republicans and Democrats, on the future of the ACA. In addition, the analysis suggests that the outcome of the debate was influenced by a substantial growth since the ACA’s implementation in public support for the principle that the federal government should ensure that all Americans have health insurance coverage.The article, which provides a framework for understanding how the American public viewed the recent congressional debate over repealing and replacing the ACA, was published online on Aug. 16, 2017 in the New England Journal of Medicine.The analysis finds that Republicans in the general public are much more divided on health care issues than was recognized by many commentators at the time of President Trump’s election, making it more difficult to enact major legislation. When asked what Congress should do about the ACA, 50 percent of Republicans said they preferred to repeal the law and replace it, but 14 percent preferred to repeal the ACA without replacing it, while 29 percent wanted to keep the law but work to improve it, and 4 percent wanted to keep the ACA as it is.In addition, the polls show how polarized Republicans and Democrats are about the overall future of the ACA. On most specific policy issues in the debate, the two parties disagreed, but there is one major exception: Majorities of both agree that the number of people covered by Medicaid should not be reduced.The most significant change since the implementation of the ACA has not been the increase in public approval of the ACA, which has gone from 44 percent in 2012 to 49 percent at the time of the recent debate in 2017, but rather the rise in overall support for universal coverage. When it comes to the question of whether or not the federal government should make sure that all Americans have healthcare coverage, six in 10 (60 percent) now say that it should be the federal government’s responsibility. The proportion of the general public saying they believe it is the federal government’s responsibility has risen from 42 percent in 2013 to 60 percent in June 2017.“When confronted with millions losing coverage, the public became more supportive of the principle that the federal government should ensure coverage for these people,” says Robert J. Blendon, Richard L. Menschel Professor of Health Policy and Political Analysis at Harvard T.H. Chan School of Public Health and lead author of the article. “This substantial change likely impacted the outcome of the Senate debate.” Read Full Storylast_img read more

Digital Crystal Ball Reveals Tomorrow’s Economic Gains

first_imgOver the previous generation, successive waves of new information technology – from the introduction of personal computers to the Internet to wireless broadband and diverse mobile devices – have enabled dramatic gains in workplace productivity. Today, in a period of widespread economic uncertainty and diminished expectations of the future, skeptics wonder if the tech-driven productivity gains of recent decades have run their course.Far from it. The explosive growth of digital data foretells the dawn of a new technological era that will be marked by utilizing both the data we have accumulated and the huge volumes of new data being created from sensors to personalize information experiences. The use of this massive and expanding data set will shift from historical understanding to predictive data analytics that deliver insights in real time to create new value that help shape our forward looking interactions. This idea of using information systems to shape future outcomes is unlocking a fountain of economic opportunity.According to the latest “census” of the digital universe conducted by the research firm IDC, the amount of new information in the world is doubling every two years, growing at a rate of more than 7.6 billion gigabytes per day.IDC claims that nearly one-quarter of this data holds potential economic value once it becomes tagged and analyzed. Yet, less than one percent of it is being analyzed today.Innovative companies and entrepreneurs have already seized this opportunity. Firms that integrate advanced data analytics into their operations are now realizing productivity gains of five to six percent higher than their peers, say Andrew McAfee and Erik Brynjolfsson of the Center for Digital Business at the Massachusetts Institute of Technology.For example, GE now embeds its jet engines with sensors to communicate terabytes of in-flight telemetry data per day, so mechanics on the ground can predict costly problems and perform less costly preventive maintenance. As CEO Jeff Immelt has said, the smarter use of data to achieve just one percent more of improvement in jet engine fuel efficiency can mean $2 billion in additional profits.In a similar vein, electric utilities are equipping customers with “smart meters” that transmit nearly 3,000 times more data per month about electricity usage patterns on their grids. The ability of these so-called “smart grids” to identify and predict transmission problems enables utilities to prevent more power outages before they occur.These early adopters in the innovative use of data are the exception rather than the rule, however. Fewer than 10 percent of the large companies we see actively use real-time, predictive data analytics to build a competitive edge. Over time, gains in productivity will be felt more broadly as these techniques become more widely adopted and routine.For years, organizations have used data mining to extract business intelligence from their internal databases. The next generation of smarter decision making will incorporate insights drawn from less structured data formats derived from social networking and collaborative applications, and location data generated by sensors inside mobile devices or digital tags attached to cargo goods as they move through supply chains.By 2020, seven billion people on the planet will be joined on the Internet by an estimated 200 billion “things” (cameras, gauges, sensors, meters, appliances, transaction systems, etc.) generating data through machine-to-machine communication. IDC estimates this machine-generated “Internet of Things” will account for fully 40 percent of information in the digital universe by the end of this decade. Much of this data will be gathered in tracking and reporting models, where it can be analyzed and transmitted to self-learning applications and then fed back to decision-makers – all in real time.Innovators in healthcare are already analyzing these external, informal data streams to identify and track epidemics of infectious diseases in real time, faster than traditional reporting methods followed by public health bureaucracies at the United Nations or global non-governmental organizations.The web site, developed by scientists affiliated with Boston Children’s Hospital, monitors emerging public health threats around the world using crowd sourcing and analysis of informal online data sources. Co-founder John Brownstein says Healthmap’s smart-phone app, “Outbreaks Near Me” took $10,000 to build and was two weeks ahead of the U.S. Centers for Disease Control in tracking and reporting the spread of the virus H1N1.A new book, The Human Face of Big Data, by photojournalist Rick Smolan, documents the many ways people are recording and analyzing their biometric data, their eating patterns, sleeping patterns and exercise habits, to generate new information that can help them predict how their bodies are aging, so they can improve their health before medical emergencies occur.The promise of tomorrow’s better living standards turns on predictive analytics that informs and even anticipates our needs. This new data paradigm will change almost every form of human endeavor, helping us to make healthcare and transportation more efficient, enabling citizens and law enforcement to work together to reduce crime, even allowing people to choose their mates with better hopes of finding the right match.As Smolan notes, “the real-time data streaming in from satellites, and from billions of sensors, RFID tags, and GPS-enabled cameras and smart phones, is enabling humanity to sense, measure, understand and affect aspects of our existence in ways” that would have amazed our grandparents.In this new era, information technology will leap beyond the acquisition and sharing of data on past activities and embark on a revolutionary course defined by real-time insights, smarter decision-making and predictive analytics that foretell a new generation of technology-driven economic gains.The technology to drive such gains exists. What’s needed most are people who know how to ask the right questions and know where to look for answers, who can recognize patterns that others do not see, and who can collaborate smoothly with colleagues in an organization to turn insights into smarter decisions—and tomorrow’s economic growth.last_img read more

Compost = Better Garden.

first_imgDo it for your garden. Properly made compost can help you enjoyone of your best gardening seasons ever.Simply put, high-quality compost (2 to 3 pounds per squarefoot) makes most garden soils vastly more productive.In heavy clay soils, the compost reduces compaction, helpsincrease aeration and enables water to better infiltrate the soil.In sandy soils, it makes the soil better able to retain both waterand nutrients.Compost is a good source of “slow-release” organicfertilizer, too. It makes the fertilizer less likely to leachout, making needed plant nutrients available for your garden veggiesthroughout the season.And in contrast to unprocessed organic matter, properly compostedmaterial is free of viable weed seed, nematodes and diseases.The bottom line is that compost can give both your garden andyour gardening experience a really big boost.Unfortunately, high-quality compost is required in fairly largeamounts, it’s often sold only in bulk (so getting it home canbe a hassle) and it isn’t readily available in most places.Admittedly, these are serious negatives. But don’t get discouraged.There is a simple solution: make it.Most gardeners know compost is good for their gardens. Butmany don’t really understand what it is, much less how to makeit.The first step in mastering the process is having a good definition.Simply put, compost is what’s left of organic matter aftermicrobes have thoroughly decomposed it. You can extract allof the fundamentals of composting from that short sentence.1. Organic Matter. Almost any plant materialcan be composted. Readily available organic matter includes leaves,grass clippings, twigs, chopped brush, straw, sawdust and vegetableplants (along with culled produce) from the garden.You can add kitchen peelings and coffee grounds, too. Don’tuse table scraps, though, to avoid attracting animals to the compostpile.2. Microbes. The bacteria and fungi that dothe decomposing are so tiny they can’t be seen without magnification.Although a number of companies sell them, you don’t need to spendyour money. These microbes are everywhere.Mixing a few scoops of garden soil or compost from a previousbatch into the compost pile will provide all the microbes youneed to start the process.Like all living organisms, microbes require water and nutrients.Much of the water is supplied by the organic matter. More watercan be sprinkled onto the pile as needed.All of the nutrients the microbes need can be provided by theorganic matter if it has enough nitrogen. If the organic matterneeds more nitrogen, incorporate a little nitrogen fertilizeror animal manure.The most desirable microbes require oxygen. An ample supplyis in the air. However, as microbes decompose the organic matter,they tend to use up all the oxygen in the pile. To let in moreoxygen, simply turn the pile occasionally.3. Decomposition. Organic matter is food formicrobes. However, they can’t take a bite, chew, swallow and thendigest it as we do. Microbes release powerful chemicals calledenzymes that digest, or decompose the organic matter.After the organic matter is broken down into small molecules,microbes absorb these molecules and use them for energy and reproduction.Because this process generates heat, compost piles normally reachtemperatures of 130 to 150 degrees Fahrenheit.These temperatures, sustained over several weeks, kill weedseeds, nematodes and many other organisms that cause plant diseases.This is one reason compost is so much better than noncompostedorganic matter.Those are the basics of composting. It’s a simple process youcan do easily at home. For more detailed information, contactyour county Extension Service office.last_img read more

Chester bridges open a week ahead of schedule

first_imgVermont Agency of Transportation today announced the re-opening of two bridges along Route 103 in Chester.  In order to rehabilitate two structurally deficient bridges in a rapid reconstruction process, bridge # 9 (near Benny’s Sunoco) bridge #8 were temporary closed traffic.  On Sunday, July 10, both bridges were once again opened traffic – a full seven days ahead of schedule.   ‘We applaud the work of the contractor, Cold River Bridges, to expedite this project,’ noted VTrans Secretary, Brian Searles.  ‘And we appreciate the patience and endurance of the community’residents and businesses — throughout the process.   Vermont’s economic growth depends upon a strong infrastructure and we are committed to fixing our aging bridges and roads, ‘ he said. The early bridge openings were enabled by both the diligence of the contractors and the innovative procedures pursued for the project by VTrans.  The team of Cold River Bridges worked 7 days/week from 5:00am until 10:00pm including the holidays from the May 16, 2011 closure. This bridge project is one of VTrans’ Accelerated Bridge Construction (ABC ) projects , a program which seeks to rapidly advance bridge improvement projects to the most critically needed structures throughout the state.  The contract for the Chester project, which combined two bridges into one project, was accelerated, advancing from conceptual plans to construction in just 2 ½ years ‘ a process that takes nine years, on average. Prefabricated elements were also used whenever possible to reduce the on-site construction time and cost.  The contract included financial incentives for minimizing the closure period.  The project also included an extensive public engagement process which resulted in some mitigation measures that lessened the impact of the closure to area residents, businesses and visitors.Cynthia Prairie, Board President of the Chester Famers Market was spurred to action when news of the project hit the community a year ago. Fearing that the bridge closures would result in closing the farmer’s market, she and her husband formed Chester United, and received a grant from the US Department of Agriculture (USDA) to enhance local marketing and outreach during the closure period.  Through collaboration, the Farmers Market was hosted on the property of the Vermont Country Store,  a location where it could remain vibrant during the closure. According to Cynthia, ‘This project actually helped to bring our community together.  We made connections between and among area businesses.  People we very responsive and the adversity of the project actually helped unite our community in a positive way.’ VTrans#30#last_img read more